mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 10:40:15 +02:00
[libata] Add a bunch of PATA drivers.
The vast majority of drivers and changes are from Alan Cox. Albert Lee contributed and maintains pata_pdc2027x. Adrian Bunk, Andrew Morton, and Tejun Heo contributed various minor fixes and updates. Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Jeff Garzik
parent
b01e86fee6
commit
669a5db411
43 changed files with 18371 additions and 110 deletions
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@ -145,6 +145,340 @@ config SATA_INTEL_COMBINED
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depends on IDE=y && !BLK_DEV_IDE_SATA && (SATA_AHCI || ATA_PIIX)
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default y
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config PATA_ALI
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tristate "ALi PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the ALi ATA interfaces
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found on the many ALi chipsets.
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If unsure, say N.
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config PATA_AMD
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tristate "AMD/NVidia PATA support (Experimental)"
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depends on PCI
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help
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This option enables support for the AMD and NVidia PATA
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interfaces found on the chipsets for Athlon/Athlon64.
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If unsure, say N.
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config PATA_ARTOP
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tristate "ARTOP 6210/6260 PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for ARTOP PATA controllers.
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If unsure, say N.
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config PATA_ATIIXP
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tristate "ATI PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the ATI ATA interfaces
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found on the many ATI chipsets.
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If unsure, say N.
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config PATA_CMD64X
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tristate "CMD64x PATA support (Very Experimental)"
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depends on PCI&& EXPERIMENTAL
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help
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This option enables support for the CMD64x series chips
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except for the CMD640.
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If unsure, say N.
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config PATA_CS5520
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tristate "CS5510/5520 PATA support"
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depends on PCI
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help
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This option enables support for the Cyrix 5510/5520
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companion chip used with the MediaGX/Geode processor family.
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If unsure, say N.
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config PATA_CS5530
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tristate "CS5530 PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the Cyrix/NatSemi/AMD CS5530
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companion chip used with the MediaGX/Geode processor family.
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If unsure, say N.
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config PATA_CS5535
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tristate "CS5535 PATA support (Experimental)"
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depends on PCI && X86 && !X86_64 && EXPERIMENTAL
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help
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This option enables support for the NatSemi/AMD CS5535
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companion chip used with the Geode processor family.
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If unsure, say N.
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config PATA_CYPRESS
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tristate "Cypress CY82C693 PATA support (Very Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the Cypress/Contaq CY82C693
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chipset found in some Alpha systems
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If unsure, say N.
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config PATA_EFAR
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tristate "EFAR SLC90E66 support"
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depends on PCI
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help
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This option enables support for the EFAR SLC90E66
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IDE controller found on some older machines.
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If unsure, say N.
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config ATA_GENERIC
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tristate "Generic ATA support"
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depends on PCI
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help
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This option enables support for generic BIOS configured
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ATA controllers via the new ATA layer
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If unsure, say N.
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config PATA_HPT366
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tristate "HPT 366/368 PATA support (Very Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the HPT 366 and 368
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PATA controllers via the new ATA layer.
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If unsure, say N.
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config PATA_HPT37X
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tristate "HPT 370/370A/371/372/374/302 PATA support (Very Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the majority of the later HPT
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PATA controllers via the new ATA layer.
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If unsure, say N.
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config PATA_HPT3X2N
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tristate "HPT 372N/302N PATA support (Very Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the N variant HPT PATA
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controllers via the new ATA layer
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If unsure, say N.
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config PATA_HPT3X3
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tristate "HPT 343/363 PATA support (Experimental)"
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depends on PCI
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help
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This option enables support for the HPT 343/363
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PATA controllers via the new ATA layer
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If unsure, say N.
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config PATA_ISAPNP
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tristate "ISA Plug and Play PATA support (Very Experimental)"
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depends on EXPERIMENTAL && ISAPNP
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help
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This option enables support for ISA plug & play ATA
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controllers such as those found on old soundcards.
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If unsure, say N.
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config PATA_IT8172
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tristate "IT8172 PATA support (Very Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the ITE 8172 PATA controller
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via the new ATA layer.
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If unsure, say N.
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config PATA_IT821X
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tristate "IT821x PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the ITE 8211 and 8212
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PATA controllers via the new ATA layer, including RAID
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mode.
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If unsure, say N.
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config PATA_LEGACY
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tristate "Legacy ISA PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for ISA/VLB bus legacy PATA
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ports and allows them to be accessed via the new ATA layer.
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If unsure, say N.
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config PATA_TRIFLEX
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tristate "Compaq Triflex PATA support"
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depends on PCI
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help
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Enable support for the Compaq 'Triflex' IDE controller as found
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on many Compaq Pentium-Pro systems, via the new ATA layer.
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If unsure, say N.
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config PATA_MPIIX
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tristate "Intel PATA MPIIX support"
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depends on PCI
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help
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This option enables support for MPIIX PATA support.
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If unsure, say N.
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config PATA_OLDPIIX
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tristate "Intel PATA old PIIX support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for old(?) PIIX PATA support.
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If unsure, say N.
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config PATA_NETCELL
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tristate "NETCELL Revolution RAID support"
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depends on PCI
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help
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This option enables support for the Netcell Revolution RAID
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PATA controller.
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If unsure, say N.
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config PATA_NS87410
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tristate "Nat Semi NS87410 PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the National Semiconductor
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NS87410 PCI-IDE controller.
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If unsure, say N.
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config PATA_OPTI
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tristate "OPTI621/6215 PATA support (Very Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables full PIO support for the early Opti ATA
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controllers found on some old motherboards.
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If unsure, say N.
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config PATA_OPTIDMA
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tristate "OPTI FireStar PATA support (Veyr Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables DMA/PIO support for the later OPTi
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controllers found on some old motherboards and in some
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latops
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If unsure, say N.
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config PATA_PCMCIA
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tristate "PCMCIA PATA support"
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depends on PCMCIA
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help
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This option enables support for PCMCIA ATA interfaces, including
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compact flash card adapters via the new ATA layer.
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If unsure, say N.
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config PATA_PDC_OLD
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tristate "Older Promise PATA controller support (Very Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the Promise 20246, 20262, 20263,
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20265 and 20267 adapters.
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If unsure, say N.
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config PATA_QDI
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tristate "QDI VLB PATA support"
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help
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Support for QDI 6500 and 6580 PATA controllers on VESA local bus.
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config PATA_RADISYS
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tristate "RADISYS 82600 PATA support (Very experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the RADISYS 82600
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PATA controllers via the new ATA layer
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If unsure, say N.
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config PATA_RZ1000
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tristate "PC Tech RZ1000 PATA support"
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depends on PCI
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help
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This option enables basic support for the PC Tech RZ1000/1
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PATA controllers via the new ATA layer
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If unsure, say N.
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config PATA_SC1200
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tristate "SC1200 PATA support (Raving Lunatic)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the NatSemi/AMD SC1200 SoC
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companion chip used with the Geode processor family.
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If unsure, say N.
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config PATA_SERVERWORKS
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tristate "SERVERWORKS OSB4/CSB5/CSB6/HT1000 PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for the Serverworks OSB4/CSB5/CSB6 and
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HT1000 PATA controllers, via the new ATA layer.
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If unsure, say N.
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config PATA_PDC2027X
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tristate "Promise PATA 2027x support"
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depends on PCI
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help
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This option enables support for Promise PATA pdc20268 to pdc20277 host adapters.
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If unsure, say N.
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config PATA_SIL680
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tristate "CMD / Silicon Image 680 PATA support"
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depends on PCI
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help
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This option enables support for CMD / Silicon Image 680 PATA.
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If unsure, say N.
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config PATA_SIS
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tristate "SiS PATA support (Experimental)"
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depends on PCI && EXPERIMENTAL
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help
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This option enables support for SiS PATA controllers
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If unsure, say N.
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config PATA_VIA
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tristate "VIA PATA support"
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depends on PCI
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help
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This option enables support for the VIA PATA interfaces
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found on the many VIA chipsets.
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If unsure, say N.
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config PATA_WINBOND
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tristate "Winbond SL82C105 PATA support"
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depends on PCI
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help
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This option enables support for SL82C105 PATA devices found in the
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Netwinder and some other systems
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If unsure, say N.
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endif
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endmenu
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@ -17,5 +17,46 @@ obj-$(CONFIG_SATA_ULI) += sata_uli.o
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obj-$(CONFIG_SATA_MV) += sata_mv.o
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obj-$(CONFIG_PDC_ADMA) += pdc_adma.o
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obj-$(CONFIG_PATA_ALI) += pata_ali.o
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obj-$(CONFIG_PATA_AMD) += pata_amd.o
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obj-$(CONFIG_PATA_ARTOP) += pata_artop.o
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obj-$(CONFIG_PATA_ATIIXP) += pata_atiixp.o
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obj-$(CONFIG_PATA_CMD64X) += pata_cmd64x.o
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obj-$(CONFIG_PATA_CS5520) += pata_cs5520.o
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obj-$(CONFIG_PATA_CS5530) += pata_cs5530.o
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obj-$(CONFIG_PATA_CS5535) += pata_cs5535.o
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obj-$(CONFIG_PATA_CYPRESS) += pata_cypress.o
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obj-$(CONFIG_PATA_EFAR) += pata_efar.o
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obj-$(CONFIG_PATA_HPT366) += pata_hpt366.o
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obj-$(CONFIG_PATA_HPT37X) += pata_hpt37x.o
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obj-$(CONFIG_PATA_HPT3X2N) += pata_hpt3x2n.o
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obj-$(CONFIG_PATA_HPT3X3) += pata_hpt3x3.o
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obj-$(CONFIG_PATA_ISAPNP) += pata_isapnp.o
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obj-$(CONFIG_PATA_IT8172) += pata_it8172.o
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obj-$(CONFIG_PATA_IT821X) += pata_it821x.o
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obj-$(CONFIG_PATA_NETCELL) += pata_netcell.o
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obj-$(CONFIG_PATA_NS87410) += pata_ns87410.o
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obj-$(CONFIG_PATA_OPTI) += pata_opti.o
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obj-$(CONFIG_PATA_OPTIDMA) += pata_optidma.o
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obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o
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obj-$(CONFIG_PATA_OLDPIIX) += pata_oldpiix.o
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obj-$(CONFIG_PATA_PCMCIA) += pata_pcmcia.o
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obj-$(CONFIG_PATA_PDC2027X) += pata_pdc2027x.o
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obj-$(CONFIG_PATA_PDC_OLD) += pata_pdc202xx_old.o
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obj-$(CONFIG_PATA_QDI) += pata_qdi.o
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obj-$(CONFIG_PATA_RADISYS) += pata_radisys.o
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obj-$(CONFIG_PATA_RZ1000) += pata_rz1000.o
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obj-$(CONFIG_PATA_SC1200) += pata_sc1200.o
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obj-$(CONFIG_PATA_SERVERWORKS) += pata_serverworks.o
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obj-$(CONFIG_PATA_SIL680) += pata_sil680.o
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obj-$(CONFIG_PATA_VIA) += pata_via.o
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obj-$(CONFIG_PATA_WINBOND) += pata_sl82c105.o
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obj-$(CONFIG_PATA_SIS) += pata_sis.o
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obj-$(CONFIG_PATA_TRIFLEX) += pata_triflex.o
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# Should be last but one libata driver
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obj-$(CONFIG_ATA_GENERIC) += ata_generic.o
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# Should be last libata driver
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obj-$(CONFIG_PATA_LEGACY) += pata_legacy.o
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libata-objs := libata-core.o libata-scsi.o libata-sff.o libata-eh.o
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252
drivers/ata/ata_generic.c
Normal file
252
drivers/ata/ata_generic.c
Normal file
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@ -0,0 +1,252 @@
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/*
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* ata_generic.c - Generic PATA/SATA controller driver.
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* Copyright 2005 Red Hat Inc <alan@redhat.com>, all rights reserved.
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*
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* Elements from ide/pci/generic.c
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* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
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* Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com>
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*
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* May be copied or modified under the terms of the GNU General Public License
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*
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* Driver for PCI IDE interfaces implementing the standard bus mastering
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* interface functionality. This assumes the BIOS did the drive set up and
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* tuning for us. By default we do not grab all IDE class devices as they
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* may have other drivers or need fixups to avoid problems. Instead we keep
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* a default list of stuff without documentation/driver that appears to
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* work.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/blkdev.h>
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#include <linux/delay.h>
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#include <scsi/scsi_host.h>
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#include <linux/libata.h>
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#define DRV_NAME "ata_generic"
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#define DRV_VERSION "0.2.6"
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/*
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* A generic parallel ATA driver using libata
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*/
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/**
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* generic_pre_reset - probe begin
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* @ap: ATA port
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*
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* Set up cable type and use generic probe init
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*/
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static int generic_pre_reset(struct ata_port *ap)
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{
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ap->cbl = ATA_CBL_PATA80;
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return ata_std_prereset(ap);
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}
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/**
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* generic_error_handler - Probe specified port on PATA host controller
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* @ap: Port to probe
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* @classes:
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*
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* LOCKING:
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* None (inherited from caller).
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*/
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static void generic_error_handler(struct ata_port *ap)
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{
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ata_bmdma_drive_eh(ap, generic_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
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}
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/**
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* generic_set_mode - mode setting
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* @ap: interface to set up
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*
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* Use a non standard set_mode function. We don't want to be tuned.
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* The BIOS configured everything. Our job is not to fiddle. We
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* read the dma enabled bits from the PCI configuration of the device
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* and respect them.
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*/
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static void generic_set_mode(struct ata_port *ap)
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{
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int dma_enabled = 0;
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int i;
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/* Bits 5 and 6 indicate if DMA is active on master/slave */
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if (ap->ioaddr.bmdma_addr)
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dma_enabled = inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
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for (i = 0; i < ATA_MAX_DEVICES; i++) {
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struct ata_device *dev = &ap->device[i];
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if (ata_dev_enabled(dev)) {
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/* We don't really care */
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||||
dev->pio_mode = XFER_PIO_0;
|
||||
dev->dma_mode = XFER_MW_DMA_0;
|
||||
/* We do need the right mode information for DMA or PIO
|
||||
and this comes from the current configuration flags */
|
||||
if (dma_enabled & (1 << (5 + i))) {
|
||||
dev->xfer_mode = XFER_MW_DMA_0;
|
||||
dev->xfer_shift = ATA_SHIFT_MWDMA;
|
||||
dev->flags &= ~ATA_DFLAG_PIO;
|
||||
} else {
|
||||
dev->xfer_mode = XFER_PIO_0;
|
||||
dev->xfer_shift = ATA_SHIFT_PIO;
|
||||
dev->flags |= ATA_DFLAG_PIO;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static struct scsi_host_template generic_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations generic_port_ops = {
|
||||
.set_mode = generic_set_mode,
|
||||
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = generic_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int all_generic_ide; /* Set to claim all devices */
|
||||
|
||||
/**
|
||||
* ata_generic_init - attach generic IDE
|
||||
* @dev: PCI device found
|
||||
* @id: match entry
|
||||
*
|
||||
* Called each time a matching IDE interface is found. We check if the
|
||||
* interface is one we wish to claim and if so we perform any chip
|
||||
* specific hacks then let the ATA layer do the heavy lifting.
|
||||
*/
|
||||
|
||||
static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
u16 command;
|
||||
static struct ata_port_info info = {
|
||||
.sht = &generic_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f,
|
||||
.port_ops = &generic_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
/* Don't use the generic entry unless instructed to do so */
|
||||
if (id->driver_data == 1 && all_generic_ide == 0)
|
||||
return -ENODEV;
|
||||
|
||||
/* Devices that need care */
|
||||
if (dev->vendor == PCI_VENDOR_ID_UMC &&
|
||||
dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
|
||||
(!(PCI_FUNC(dev->devfn) & 1)))
|
||||
return -ENODEV;
|
||||
|
||||
if (dev->vendor == PCI_VENDOR_ID_OPTI &&
|
||||
dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
|
||||
(!(PCI_FUNC(dev->devfn) & 1)))
|
||||
return -ENODEV;
|
||||
|
||||
/* Don't re-enable devices in generic mode or we will break some
|
||||
motherboards with disabled and unused IDE controllers */
|
||||
pci_read_config_word(dev, PCI_COMMAND, &command);
|
||||
if (!(command & PCI_COMMAND_IO))
|
||||
return -ENODEV;
|
||||
|
||||
if (dev->vendor == PCI_VENDOR_ID_AL)
|
||||
ata_pci_clear_simplex(dev);
|
||||
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id ata_generic[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8673F), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886A), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_UMC, PCI_DEVICE_ID_UMC_UM8886BF), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), },
|
||||
/* Must come last. If you add entries adjust this table appropriately */
|
||||
{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 1},
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver ata_generic_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = ata_generic,
|
||||
.probe = ata_generic_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init ata_generic_init(void)
|
||||
{
|
||||
return pci_module_init(&ata_generic_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit ata_generic_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&ata_generic_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for generic ATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, ata_generic);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(ata_generic_init);
|
||||
module_exit(ata_generic_exit);
|
||||
|
||||
module_param(all_generic_ide, int, 0);
|
||||
|
|
@ -93,7 +93,7 @@
|
|||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "ata_piix"
|
||||
#define DRV_VERSION "2.00"
|
||||
#define DRV_VERSION "2.00ac6"
|
||||
|
||||
enum {
|
||||
PIIX_IOCFG = 0x54, /* IDE I/O configuration register */
|
||||
|
|
@ -116,15 +116,18 @@ enum {
|
|||
PIIX_80C_SEC = (1 << 7) | (1 << 6),
|
||||
|
||||
/* controller IDs */
|
||||
piix4_pata = 0,
|
||||
ich5_pata = 1,
|
||||
ich5_sata = 2,
|
||||
esb_sata = 3,
|
||||
ich6_sata = 4,
|
||||
ich6_sata_ahci = 5,
|
||||
ich6m_sata_ahci = 6,
|
||||
ich8_sata_ahci = 7,
|
||||
|
||||
piix_pata_33 = 0, /* PIIX3 or 4 at 33Mhz */
|
||||
ich_pata_33 = 1, /* ICH up to UDMA 33 only */
|
||||
ich_pata_66 = 2, /* ICH up to 66 Mhz */
|
||||
ich_pata_100 = 3, /* ICH up to UDMA 100 */
|
||||
ich_pata_133 = 4, /* ICH up to UDMA 133 */
|
||||
ich5_sata = 5,
|
||||
esb_sata = 6,
|
||||
ich6_sata = 7,
|
||||
ich6_sata_ahci = 8,
|
||||
ich6m_sata_ahci = 9,
|
||||
ich8_sata_ahci = 10,
|
||||
|
||||
/* constants for mapping table */
|
||||
P0 = 0, /* port 0 */
|
||||
P1 = 1, /* port 1 */
|
||||
|
|
@ -152,19 +155,54 @@ struct piix_host_priv {
|
|||
static int piix_init_one (struct pci_dev *pdev,
|
||||
const struct pci_device_id *ent);
|
||||
static void piix_host_stop(struct ata_host *host);
|
||||
static void piix_pata_error_handler(struct ata_port *ap);
|
||||
static void ich_pata_error_handler(struct ata_port *ap);
|
||||
static void piix_sata_error_handler(struct ata_port *ap);
|
||||
static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev);
|
||||
static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev);
|
||||
static void piix_pata_error_handler(struct ata_port *ap);
|
||||
static void piix_sata_error_handler(struct ata_port *ap);
|
||||
static void ich_set_dmamode (struct ata_port *ap, struct ata_device *adev);
|
||||
|
||||
static unsigned int in_module_init = 1;
|
||||
|
||||
static const struct pci_device_id piix_pci_tbl[] = {
|
||||
#ifdef ATA_ENABLE_PATA
|
||||
{ 0x8086, 0x7111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix4_pata },
|
||||
{ 0x8086, 0x24db, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
|
||||
{ 0x8086, 0x25a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
|
||||
{ 0x8086, 0x27df, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
|
||||
/* Intel PIIX4 for the 430TX/440BX/MX chipset: UDMA 33 */
|
||||
/* Also PIIX4E (fn3 rev 2) and PIIX4M (fn3 rev 3) */
|
||||
{ 0x8086, 0x7111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
|
||||
{ 0x8086, 0x24db, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
{ 0x8086, 0x25a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* Intel PIIX4 */
|
||||
{ 0x8086, 0x7199, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
|
||||
/* Intel PIIX4 */
|
||||
{ 0x8086, 0x7601, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
|
||||
/* Intel PIIX */
|
||||
{ 0x8086, 0x84CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
|
||||
/* Intel ICH (i810, i815, i840) UDMA 66*/
|
||||
{ 0x8086, 0x2411, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_66 },
|
||||
/* Intel ICH0 : UDMA 33*/
|
||||
{ 0x8086, 0x2421, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_33 },
|
||||
/* Intel ICH2M */
|
||||
{ 0x8086, 0x244A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* Intel ICH2 (i810E2, i845, 850, 860) UDMA 100 */
|
||||
{ 0x8086, 0x244B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* Intel ICH3M */
|
||||
{ 0x8086, 0x248A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* Intel ICH3 (E7500/1) UDMA 100 */
|
||||
{ 0x8086, 0x248B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* Intel ICH4 (i845GV, i845E, i852, i855) UDMA 100 */
|
||||
{ 0x8086, 0x24CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
{ 0x8086, 0x24CB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* Intel ICH5 */
|
||||
{ 0x8086, 0x24DB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_133 },
|
||||
/* C-ICH (i810E2) */
|
||||
{ 0x8086, 0x245B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* ESB (855GME/875P + 6300ESB) UDMA 100 */
|
||||
{ 0x8086, 0x25A2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* ICH6 (and 6) (i915) UDMA 100 */
|
||||
{ 0x8086, 0x266F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
/* ICH7/7-R (i945, i975) UDMA 100*/
|
||||
{ 0x8086, 0x27DF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_133 },
|
||||
{ 0x8086, 0x269E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
|
||||
#endif
|
||||
|
||||
/* NOTE: The following PCI ids must be kept in sync with the
|
||||
|
|
@ -263,6 +301,39 @@ static const struct ata_port_operations piix_pata_ops = {
|
|||
.host_stop = piix_host_stop,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations ich_pata_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = piix_set_piomode,
|
||||
.set_dmamode = ich_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ich_pata_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations piix_sata_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
|
||||
|
|
@ -359,35 +430,56 @@ static const struct piix_map_db *piix_map_db_table[] = {
|
|||
};
|
||||
|
||||
static struct ata_port_info piix_port_info[] = {
|
||||
/* piix4_pata */
|
||||
/* piix_pata_33: 0: PIIX3 or 4 at 33MHz */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
#if 0
|
||||
.mwdma_mask = 0x06, /* mwdma1-2 */
|
||||
#else
|
||||
.mwdma_mask = 0x00, /* mwdma broken */
|
||||
#endif
|
||||
.mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
|
||||
.udma_mask = ATA_UDMA_MASK_40C,
|
||||
.port_ops = &piix_pata_ops,
|
||||
},
|
||||
|
||||
/* ich5_pata */
|
||||
/* ich_pata_33: 1 ICH0 - ICH at 33Mhz*/
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
|
||||
.flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS,
|
||||
.pio_mask = 0x1f, /* pio 0-4 */
|
||||
.mwdma_mask = 0x06, /* Check: maybe 0x07 */
|
||||
.udma_mask = ATA_UDMA2, /* UDMA33 */
|
||||
.port_ops = &ich_pata_ops,
|
||||
},
|
||||
/* ich_pata_66: 2 ICH controllers up to 66MHz */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS,
|
||||
.pio_mask = 0x1f, /* pio 0-4 */
|
||||
.mwdma_mask = 0x06, /* MWDMA0 is broken on chip */
|
||||
.udma_mask = ATA_UDMA4,
|
||||
.port_ops = &ich_pata_ops,
|
||||
},
|
||||
|
||||
/* ich_pata_100: 3 */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
#if 0
|
||||
.mwdma_mask = 0x06, /* mwdma1-2 */
|
||||
#else
|
||||
.mwdma_mask = 0x00, /* mwdma broken */
|
||||
#endif
|
||||
.udma_mask = 0x3f, /* udma0-5 */
|
||||
.port_ops = &piix_pata_ops,
|
||||
.udma_mask = ATA_UDMA5, /* udma0-5 */
|
||||
.port_ops = &ich_pata_ops,
|
||||
},
|
||||
|
||||
/* ich5_sata */
|
||||
/* ich_pata_133: 4 ICH with full UDMA6 */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
|
||||
.pio_mask = 0x1f, /* pio 0-4 */
|
||||
.mwdma_mask = 0x06, /* Check: maybe 0x07 */
|
||||
.udma_mask = ATA_UDMA6, /* UDMA133 */
|
||||
.port_ops = &ich_pata_ops,
|
||||
},
|
||||
|
||||
/* ich5_sata: 5 */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR |
|
||||
|
|
@ -398,7 +490,7 @@ static struct ata_port_info piix_port_info[] = {
|
|||
.port_ops = &piix_sata_ops,
|
||||
},
|
||||
|
||||
/* i6300esb_sata */
|
||||
/* i6300esb_sata: 6 */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SATA |
|
||||
|
|
@ -409,7 +501,7 @@ static struct ata_port_info piix_port_info[] = {
|
|||
.port_ops = &piix_sata_ops,
|
||||
},
|
||||
|
||||
/* ich6_sata */
|
||||
/* ich6_sata: 7 */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SATA |
|
||||
|
|
@ -420,7 +512,7 @@ static struct ata_port_info piix_port_info[] = {
|
|||
.port_ops = &piix_sata_ops,
|
||||
},
|
||||
|
||||
/* ich6_sata_ahci */
|
||||
/* ich6_sata_ahci:8 */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SATA |
|
||||
|
|
@ -432,7 +524,7 @@ static struct ata_port_info piix_port_info[] = {
|
|||
.port_ops = &piix_sata_ops,
|
||||
},
|
||||
|
||||
/* ich6m_sata_ahci */
|
||||
/* ich6m_sata_ahci: 9 */
|
||||
{
|
||||
.sht = &piix_sht,
|
||||
.flags = ATA_FLAG_SATA |
|
||||
|
|
@ -455,6 +547,7 @@ static struct ata_port_info piix_port_info[] = {
|
|||
.udma_mask = 0x7f, /* udma0-6 */
|
||||
.port_ops = &piix_sata_ops,
|
||||
},
|
||||
|
||||
};
|
||||
|
||||
static struct pci_bits piix_enable_bits[] = {
|
||||
|
|
@ -483,7 +576,8 @@ MODULE_PARM_DESC(force_pcs, "force honoring or ignoring PCS to work around "
|
|||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
static void piix_pata_cbl_detect(struct ata_port *ap)
|
||||
|
||||
static void ich_pata_cbl_detect(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 tmp, mask;
|
||||
|
|
@ -503,14 +597,12 @@ static void piix_pata_cbl_detect(struct ata_port *ap)
|
|||
|
||||
cbl40:
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
ap->udma_mask &= ATA_UDMA_MASK_40C;
|
||||
}
|
||||
|
||||
/**
|
||||
* piix_pata_prereset - prereset for PATA host controller
|
||||
* @ap: Target port
|
||||
*
|
||||
* Prereset including cable detection.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
|
|
@ -524,9 +616,7 @@ static int piix_pata_prereset(struct ata_port *ap)
|
|||
ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
|
||||
return 0;
|
||||
}
|
||||
|
||||
piix_pata_cbl_detect(ap);
|
||||
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
|
|
@ -536,6 +626,36 @@ static void piix_pata_error_handler(struct ata_port *ap)
|
|||
ata_std_postreset);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* ich_pata_prereset - prereset for PATA host controller
|
||||
* @ap: Target port
|
||||
*
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
static int ich_pata_prereset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) {
|
||||
ata_port_printk(ap, KERN_INFO, "port disabled. ignoring.\n");
|
||||
ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
|
||||
return 0;
|
||||
}
|
||||
|
||||
ich_pata_cbl_detect(ap);
|
||||
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void ich_pata_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, ich_pata_prereset, ata_std_softreset, NULL,
|
||||
ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* piix_sata_present_mask - determine present mask for SATA host controller
|
||||
* @ap: Target port
|
||||
|
|
@ -637,6 +757,13 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
|
|||
unsigned int slave_port = 0x44;
|
||||
u16 master_data;
|
||||
u8 slave_data;
|
||||
u8 udma_enable;
|
||||
int control = 0;
|
||||
|
||||
/*
|
||||
* See Intel Document 298600-004 for the timing programing rules
|
||||
* for ICH controllers.
|
||||
*/
|
||||
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 },
|
||||
|
|
@ -645,20 +772,30 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
|
|||
{ 2, 1 },
|
||||
{ 2, 3 }, };
|
||||
|
||||
if (pio >= 2)
|
||||
control |= 1; /* TIME1 enable */
|
||||
if (ata_pio_need_iordy(adev))
|
||||
control |= 2; /* IE enable */
|
||||
|
||||
/* Intel specifies that the PPE functionality is for disk only */
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
control |= 4; /* PPE enable */
|
||||
|
||||
pci_read_config_word(dev, master_port, &master_data);
|
||||
if (is_slave) {
|
||||
/* Enable SITRE (seperate slave timing register) */
|
||||
master_data |= 0x4000;
|
||||
/* enable PPE, IE and TIME */
|
||||
master_data |= 0x0070;
|
||||
/* enable PPE1, IE1 and TIME1 as needed */
|
||||
master_data |= (control << 4);
|
||||
pci_read_config_byte(dev, slave_port, &slave_data);
|
||||
slave_data &= (ap->port_no ? 0x0f : 0xf0);
|
||||
slave_data |=
|
||||
(timings[pio][0] << 2) |
|
||||
(timings[pio][1] << (ap->port_no ? 4 : 0));
|
||||
/* Load the timing nibble for this slave */
|
||||
slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0);
|
||||
} else {
|
||||
/* Master keeps the bits in a different format */
|
||||
master_data &= 0xccf8;
|
||||
/* enable PPE, IE and TIME */
|
||||
master_data |= 0x0007;
|
||||
/* Enable PPE, IE and TIME as appropriate */
|
||||
master_data |= control;
|
||||
master_data |=
|
||||
(timings[pio][0] << 12) |
|
||||
(timings[pio][1] << 8);
|
||||
|
|
@ -666,13 +803,23 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
|
|||
pci_write_config_word(dev, master_port, master_data);
|
||||
if (is_slave)
|
||||
pci_write_config_byte(dev, slave_port, slave_data);
|
||||
|
||||
/* Ensure the UDMA bit is off - it will be turned back on if
|
||||
UDMA is selected */
|
||||
|
||||
if (ap->udma_mask) {
|
||||
pci_read_config_byte(dev, 0x48, &udma_enable);
|
||||
udma_enable &= ~(1 << (2 * ap->port_no + adev->devno));
|
||||
pci_write_config_byte(dev, 0x48, udma_enable);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* piix_set_dmamode - Initialize host controller PATA PIO timings
|
||||
* do_pata_set_dmamode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: um
|
||||
* @adev: Drive in question
|
||||
* @udma: udma mode, 0 - 6
|
||||
* @is_ich: set if the chip is an ICH device
|
||||
*
|
||||
* Set UDMA mode for device, in host controller PCI config space.
|
||||
*
|
||||
|
|
@ -680,70 +827,140 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
|
|||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
|
||||
static void do_pata_set_dmamode (struct ata_port *ap, struct ata_device *adev, int isich)
|
||||
{
|
||||
unsigned int udma = adev->dma_mode; /* FIXME: MWDMA too */
|
||||
struct pci_dev *dev = to_pci_dev(ap->host->dev);
|
||||
u8 maslave = ap->port_no ? 0x42 : 0x40;
|
||||
u8 speed = udma;
|
||||
unsigned int drive_dn = (ap->port_no ? 2 : 0) + adev->devno;
|
||||
int a_speed = 3 << (drive_dn * 4);
|
||||
int u_flag = 1 << drive_dn;
|
||||
int v_flag = 0x01 << drive_dn;
|
||||
int w_flag = 0x10 << drive_dn;
|
||||
int u_speed = 0;
|
||||
int sitre;
|
||||
u16 reg4042, reg4a;
|
||||
u8 reg48, reg54, reg55;
|
||||
u8 master_port = ap->port_no ? 0x42 : 0x40;
|
||||
u16 master_data;
|
||||
u8 speed = adev->dma_mode;
|
||||
int devid = adev->devno + 2 * ap->port_no;
|
||||
u8 udma_enable;
|
||||
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 },
|
||||
{ 0, 0 },
|
||||
{ 1, 0 },
|
||||
{ 2, 1 },
|
||||
{ 2, 3 }, };
|
||||
|
||||
pci_read_config_word(dev, maslave, ®4042);
|
||||
DPRINTK("reg4042 = 0x%04x\n", reg4042);
|
||||
sitre = (reg4042 & 0x4000) ? 1 : 0;
|
||||
pci_read_config_byte(dev, 0x48, ®48);
|
||||
pci_read_config_word(dev, 0x4a, ®4a);
|
||||
pci_read_config_byte(dev, 0x54, ®54);
|
||||
pci_read_config_byte(dev, 0x55, ®55);
|
||||
|
||||
switch(speed) {
|
||||
case XFER_UDMA_4:
|
||||
case XFER_UDMA_2: u_speed = 2 << (drive_dn * 4); break;
|
||||
case XFER_UDMA_6:
|
||||
case XFER_UDMA_5:
|
||||
case XFER_UDMA_3:
|
||||
case XFER_UDMA_1: u_speed = 1 << (drive_dn * 4); break;
|
||||
case XFER_UDMA_0: u_speed = 0 << (drive_dn * 4); break;
|
||||
case XFER_MW_DMA_2:
|
||||
case XFER_MW_DMA_1: break;
|
||||
default:
|
||||
BUG();
|
||||
return;
|
||||
}
|
||||
pci_read_config_word(dev, master_port, &master_data);
|
||||
pci_read_config_byte(dev, 0x48, &udma_enable);
|
||||
|
||||
if (speed >= XFER_UDMA_0) {
|
||||
if (!(reg48 & u_flag))
|
||||
pci_write_config_byte(dev, 0x48, reg48 | u_flag);
|
||||
if (speed == XFER_UDMA_5) {
|
||||
pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag);
|
||||
} else {
|
||||
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
|
||||
unsigned int udma = adev->dma_mode - XFER_UDMA_0;
|
||||
u16 udma_timing;
|
||||
u16 ideconf;
|
||||
int u_clock, u_speed;
|
||||
|
||||
/*
|
||||
* UDMA is handled by a combination of clock switching and
|
||||
* selection of dividers
|
||||
*
|
||||
* Handy rule: Odd modes are UDMATIMx 01, even are 02
|
||||
* except UDMA0 which is 00
|
||||
*/
|
||||
u_speed = min(2 - (udma & 1), udma);
|
||||
if (udma == 5)
|
||||
u_clock = 0x1000; /* 100Mhz */
|
||||
else if (udma > 2)
|
||||
u_clock = 1; /* 66Mhz */
|
||||
else
|
||||
u_clock = 0; /* 33Mhz */
|
||||
|
||||
udma_enable |= (1 << devid);
|
||||
|
||||
/* Load the CT/RP selection */
|
||||
pci_read_config_word(dev, 0x4A, &udma_timing);
|
||||
udma_timing &= ~(3 << (4 * devid));
|
||||
udma_timing |= u_speed << (4 * devid);
|
||||
pci_write_config_word(dev, 0x4A, udma_timing);
|
||||
|
||||
if (isich) {
|
||||
/* Select a 33/66/100Mhz clock */
|
||||
pci_read_config_word(dev, 0x54, &ideconf);
|
||||
ideconf &= ~(0x1001 << devid);
|
||||
ideconf |= u_clock << devid;
|
||||
/* For ICH or later we should set bit 10 for better
|
||||
performance (WR_PingPong_En) */
|
||||
pci_write_config_word(dev, 0x54, ideconf);
|
||||
}
|
||||
if ((reg4a & a_speed) != u_speed)
|
||||
pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed);
|
||||
if (speed > XFER_UDMA_2) {
|
||||
if (!(reg54 & v_flag))
|
||||
pci_write_config_byte(dev, 0x54, reg54 | v_flag);
|
||||
} else
|
||||
pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
|
||||
} else {
|
||||
if (reg48 & u_flag)
|
||||
pci_write_config_byte(dev, 0x48, reg48 & ~u_flag);
|
||||
if (reg4a & a_speed)
|
||||
pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
|
||||
if (reg54 & v_flag)
|
||||
pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
|
||||
if (reg55 & w_flag)
|
||||
pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
|
||||
/*
|
||||
* MWDMA is driven by the PIO timings. We must also enable
|
||||
* IORDY unconditionally along with TIME1. PPE has already
|
||||
* been set when the PIO timing was set.
|
||||
*/
|
||||
unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
|
||||
unsigned int control;
|
||||
u8 slave_data;
|
||||
const unsigned int needed_pio[3] = {
|
||||
XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
|
||||
};
|
||||
int pio = needed_pio[mwdma] - XFER_PIO_0;
|
||||
|
||||
control = 3; /* IORDY|TIME1 */
|
||||
|
||||
/* If the drive MWDMA is faster than it can do PIO then
|
||||
we must force PIO into PIO0 */
|
||||
|
||||
if (adev->pio_mode < needed_pio[mwdma])
|
||||
/* Enable DMA timing only */
|
||||
control |= 8; /* PIO cycles in PIO0 */
|
||||
|
||||
if (adev->devno) { /* Slave */
|
||||
master_data &= 0xFF4F; /* Mask out IORDY|TIME1|DMAONLY */
|
||||
master_data |= control << 4;
|
||||
pci_read_config_byte(dev, 0x44, &slave_data);
|
||||
slave_data &= (0x0F + 0xE1 * ap->port_no);
|
||||
/* Load the matching timing */
|
||||
slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0);
|
||||
pci_write_config_byte(dev, 0x44, slave_data);
|
||||
} else { /* Master */
|
||||
master_data &= 0xCCF4; /* Mask out IORDY|TIME1|DMAONLY
|
||||
and master timing bits */
|
||||
master_data |= control;
|
||||
master_data |=
|
||||
(timings[pio][0] << 12) |
|
||||
(timings[pio][1] << 8);
|
||||
}
|
||||
udma_enable &= ~(1 << devid);
|
||||
pci_write_config_word(dev, master_port, master_data);
|
||||
}
|
||||
/* Don't scribble on 0x48 if the controller does not support UDMA */
|
||||
if (ap->udma_mask)
|
||||
pci_write_config_byte(dev, 0x48, udma_enable);
|
||||
}
|
||||
|
||||
/**
|
||||
* piix_set_dmamode - Initialize host controller PATA DMA timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: um
|
||||
*
|
||||
* Set MW/UDMA mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
do_pata_set_dmamode(ap, adev, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* ich_set_dmamode - Initialize host controller PATA DMA timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: um
|
||||
*
|
||||
* Set MW/UDMA mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void ich_set_dmamode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
do_pata_set_dmamode(ap, adev, 1);
|
||||
}
|
||||
|
||||
#define AHCI_PCI_BAR 5
|
||||
|
|
@ -872,7 +1089,7 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev,
|
|||
|
||||
case IDE:
|
||||
WARN_ON((i & 1) || map[i + 1] != IDE);
|
||||
pinfo[i / 2] = piix_port_info[ich5_pata];
|
||||
pinfo[i / 2] = piix_port_info[ich_pata_100];
|
||||
pinfo[i / 2].private_data = hpriv;
|
||||
i++;
|
||||
printk(" IDE IDE");
|
||||
|
|
@ -1007,4 +1224,3 @@ static void __exit piix_exit(void)
|
|||
|
||||
module_init(piix_init);
|
||||
module_exit(piix_exit);
|
||||
|
||||
|
|
|
|||
679
drivers/ata/pata_ali.c
Normal file
679
drivers/ata/pata_ali.c
Normal file
|
|
@ -0,0 +1,679 @@
|
|||
/*
|
||||
* pata_ali.c - ALI 15x3 PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* based in part upon
|
||||
* linux/drivers/ide/pci/alim15x3.c Version 0.17 2003/01/02
|
||||
*
|
||||
* Copyright (C) 1998-2000 Michel Aubry, Maintainer
|
||||
* Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
|
||||
* Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer
|
||||
*
|
||||
* Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org)
|
||||
* May be copied or modified under the terms of the GNU General Public License
|
||||
* Copyright (C) 2002 Alan Cox <alan@redhat.com>
|
||||
* ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw>
|
||||
*
|
||||
* Documentation
|
||||
* Chipset documentation available under NDA only
|
||||
*
|
||||
* TODO/CHECK
|
||||
* Cannot have ATAPI on both master & slave for rev < c2 (???) but
|
||||
* otherwise should do atapi DMA.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/dmi.h>
|
||||
|
||||
#define DRV_NAME "pata_ali"
|
||||
#define DRV_VERSION "0.6.5"
|
||||
|
||||
/*
|
||||
* Cable special cases
|
||||
*/
|
||||
|
||||
static struct dmi_system_id cable_dmi_table[] = {
|
||||
{
|
||||
.ident = "HP Pavilion N5430",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
|
||||
DMI_MATCH(DMI_BOARD_NAME, "OmniBook N32N-736"),
|
||||
},
|
||||
},
|
||||
{ }
|
||||
};
|
||||
|
||||
static int ali_cable_override(struct pci_dev *pdev)
|
||||
{
|
||||
/* Fujitsu P2000 */
|
||||
if (pdev->subsystem_vendor == 0x10CF && pdev->subsystem_device == 0x10AF)
|
||||
return 1;
|
||||
/* Systems by DMI */
|
||||
if (dmi_check_system(cable_dmi_table))
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_c2_cable_detect - cable detection
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform cable detection for C2 and later revisions
|
||||
*/
|
||||
|
||||
static int ali_c2_cable_detect(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 ata66;
|
||||
|
||||
/* Certain laptops use short but suitable cables and don't
|
||||
implement the detect logic */
|
||||
|
||||
if (ali_cable_override(pdev))
|
||||
return ATA_CBL_PATA80;
|
||||
|
||||
/* Host view cable detect 0x4A bit 0 primary bit 1 secondary
|
||||
Bit set for 40 pin */
|
||||
pci_read_config_byte(pdev, 0x4A, &ata66);
|
||||
if (ata66 & (1 << ap->port_no))
|
||||
return ATA_CBL_PATA40;
|
||||
else
|
||||
return ATA_CBL_PATA80;
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_early_error_handler - reset for eary chip
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Handle the reset callback for the later chips with cable detect
|
||||
*/
|
||||
|
||||
static int ali_c2_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ali_c2_cable_detect(ap);
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void ali_c2_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, ali_c2_pre_reset,
|
||||
ata_std_softreset, NULL,
|
||||
ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_early_cable_detect - cable detection
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform cable detection for older chipsets. This turns out to be
|
||||
* rather easy to implement
|
||||
*/
|
||||
|
||||
static int ali_early_cable_detect(struct ata_port *ap)
|
||||
{
|
||||
return ATA_CBL_PATA40;
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_early_probe_init - reset for early chip
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Handle the reset callback for the early (pre cable detect) chips.
|
||||
*/
|
||||
|
||||
static int ali_early_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ali_early_cable_detect(ap);
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void ali_early_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, ali_early_pre_reset,
|
||||
ata_std_softreset, NULL,
|
||||
ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_20_filter - filter for earlier ALI DMA
|
||||
* @ap: ALi ATA port
|
||||
* @adev: attached device
|
||||
*
|
||||
* Ensure that we do not do DMA on CD devices. We may be able to
|
||||
* fix that later on. Also ensure we do not do UDMA on WDC drives
|
||||
*/
|
||||
|
||||
static unsigned long ali_20_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
|
||||
{
|
||||
char model_num[40];
|
||||
/* No DMA on anything but a disk for now */
|
||||
if (adev->class != ATA_DEV_ATA)
|
||||
mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
|
||||
ata_id_string(adev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num));
|
||||
if (strstr(model_num, "WDC"))
|
||||
return mask &= ~ATA_MASK_UDMA;
|
||||
return ata_pci_default_filter(ap, adev, mask);
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_fifo_control - FIFO manager
|
||||
* @ap: ALi channel to control
|
||||
* @adev: device for FIFO control
|
||||
* @on: 0 for off 1 for on
|
||||
*
|
||||
* Enable or disable the FIFO on a given device. Because of the way the
|
||||
* ALi FIFO works it provides a boost on ATA disk but can be confused by
|
||||
* ATAPI and we must therefore manage it.
|
||||
*/
|
||||
|
||||
static void ali_fifo_control(struct ata_port *ap, struct ata_device *adev, int on)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int pio_fifo = 0x54 + ap->port_no;
|
||||
u8 fifo;
|
||||
int shift = 4 * adev->devno;
|
||||
|
||||
/* ATA - FIFO on set nibble to 0x05, ATAPI - FIFO off, set nibble to
|
||||
0x00. Not all the docs agree but the behaviour we now use is the
|
||||
one stated in the BIOS Programming Guide */
|
||||
|
||||
pci_read_config_byte(pdev, pio_fifo, &fifo);
|
||||
fifo &= ~(0x0F << shift);
|
||||
if (on)
|
||||
fifo |= (on << shift);
|
||||
pci_write_config_byte(pdev, pio_fifo, fifo);
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_program_modes - load mode registers
|
||||
* @ap: ALi channel to load
|
||||
* @adev: Device the timing is for
|
||||
* @cmd: Command timing
|
||||
* @data: Data timing
|
||||
* @ultra: UDMA timing or zero for off
|
||||
*
|
||||
* Loads the timing registers for cmd/data and disable UDMA if
|
||||
* ultra is zero. If ultra is set then load and enable the UDMA
|
||||
* timing but do not touch the command/data timing.
|
||||
*/
|
||||
|
||||
static void ali_program_modes(struct ata_port *ap, struct ata_device *adev, struct ata_timing *t, u8 ultra)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int cas = 0x58 + 4 * ap->port_no; /* Command timing */
|
||||
int cbt = 0x59 + 4 * ap->port_no; /* Command timing */
|
||||
int drwt = 0x5A + 4 * ap->port_no + adev->devno; /* R/W timing */
|
||||
int udmat = 0x56 + ap->port_no; /* UDMA timing */
|
||||
int shift = 4 * adev->devno;
|
||||
u8 udma;
|
||||
|
||||
if (t != NULL) {
|
||||
t->setup = FIT(t->setup, 1, 8) & 7;
|
||||
t->act8b = FIT(t->act8b, 1, 8) & 7;
|
||||
t->rec8b = FIT(t->rec8b, 1, 16) & 15;
|
||||
t->active = FIT(t->active, 1, 8) & 7;
|
||||
t->recover = FIT(t->recover, 1, 16) & 15;
|
||||
|
||||
pci_write_config_byte(pdev, cas, t->setup);
|
||||
pci_write_config_byte(pdev, cbt, (t->act8b << 4) | t->rec8b);
|
||||
pci_write_config_byte(pdev, drwt, (t->active << 4) | t->recover);
|
||||
}
|
||||
|
||||
/* Set up the UDMA enable */
|
||||
pci_read_config_byte(pdev, udmat, &udma);
|
||||
udma &= ~(0x0F << shift);
|
||||
udma |= ultra << shift;
|
||||
pci_write_config_byte(pdev, udmat, udma);
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the ALi registers for PIO mode. FIXME: add timings for
|
||||
* PIO5.
|
||||
*/
|
||||
|
||||
static void ali_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
struct ata_timing t;
|
||||
unsigned long T = 1000000000 / 33333; /* PCI clock based */
|
||||
|
||||
ata_timing_compute(adev, adev->pio_mode, &t, T, 1);
|
||||
if (pair) {
|
||||
struct ata_timing p;
|
||||
ata_timing_compute(pair, pair->pio_mode, &p, T, 1);
|
||||
ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
|
||||
if (pair->dma_mode) {
|
||||
ata_timing_compute(pair, pair->dma_mode, &p, T, 1);
|
||||
ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
|
||||
}
|
||||
}
|
||||
|
||||
/* PIO FIFO is only permitted on ATA disk */
|
||||
if (adev->class != ATA_DEV_ATA)
|
||||
ali_fifo_control(ap, adev, 0x00);
|
||||
ali_program_modes(ap, adev, &t, 0);
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
ali_fifo_control(ap, adev, 0x05);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* FIXME: MWDMA timings
|
||||
*/
|
||||
|
||||
static void ali_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD };
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
struct ata_timing t;
|
||||
unsigned long T = 1000000000 / 33333; /* PCI clock based */
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
ali_fifo_control(ap, adev, 0x08);
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
ali_program_modes(ap, adev, NULL, udma_timing[adev->dma_mode - XFER_UDMA_0]);
|
||||
if (adev->dma_mode >= XFER_UDMA_3) {
|
||||
u8 reg4b;
|
||||
pci_read_config_byte(pdev, 0x4B, ®4b);
|
||||
reg4b |= 1;
|
||||
pci_write_config_byte(pdev, 0x4B, reg4b);
|
||||
}
|
||||
} else {
|
||||
ata_timing_compute(adev, adev->dma_mode, &t, T, 1);
|
||||
if (pair) {
|
||||
struct ata_timing p;
|
||||
ata_timing_compute(pair, pair->pio_mode, &p, T, 1);
|
||||
ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
|
||||
if (pair->dma_mode) {
|
||||
ata_timing_compute(pair, pair->dma_mode, &p, T, 1);
|
||||
ata_timing_merge(&p, &t, &t, ATA_TIMING_SETUP|ATA_TIMING_8BIT);
|
||||
}
|
||||
}
|
||||
ali_program_modes(ap, adev, &t, 0);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* ali_lock_sectors - Keep older devices to 255 sector mode
|
||||
* @ap: ATA port
|
||||
* @adev: Device
|
||||
*
|
||||
* Called during the bus probe for each device that is found. We use
|
||||
* this call to lock the sector count of the device to 255 or less on
|
||||
* older ALi controllers. If we didn't do this then large I/O's would
|
||||
* require LBA48 commands which the older ALi requires are issued by
|
||||
* slower PIO methods
|
||||
*/
|
||||
|
||||
static void ali_lock_sectors(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
adev->max_sectors = 255;
|
||||
}
|
||||
|
||||
static struct scsi_host_template ali_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
/* Keep LBA28 counts so large I/O's don't turn LBA48 and PIO
|
||||
with older controllers. Not locked so will grow on C5 or later */
|
||||
.max_sectors = 255,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
/*
|
||||
* Port operations for PIO only ALi
|
||||
*/
|
||||
|
||||
static struct ata_port_operations ali_early_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = ali_set_piomode,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ali_early_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/*
|
||||
* Port operations for DMA capable ALi without cable
|
||||
* detect
|
||||
*/
|
||||
static struct ata_port_operations ali_20_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
|
||||
.set_piomode = ali_set_piomode,
|
||||
.set_dmamode = ali_set_dmamode,
|
||||
.mode_filter = ali_20_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
.dev_config = ali_lock_sectors,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ali_early_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/*
|
||||
* Port operations for DMA capable ALi with cable detect
|
||||
*/
|
||||
static struct ata_port_operations ali_c2_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = ali_set_piomode,
|
||||
.set_dmamode = ali_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
.dev_config = ali_lock_sectors,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ali_c2_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/*
|
||||
* Port operations for DMA capable ALi with cable detect and LBA48
|
||||
*/
|
||||
static struct ata_port_operations ali_c5_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = ali_set_piomode,
|
||||
.set_dmamode = ali_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ali_c2_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* ali_init_one - discovery callback
|
||||
* @pdev: PCI device ID
|
||||
* @id: PCI table info
|
||||
*
|
||||
* An ALi IDE interface has been discovered. Figure out what revision
|
||||
* and perform configuration work before handing it to the ATA layer
|
||||
*/
|
||||
|
||||
static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info_early = {
|
||||
.sht = &ali_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.port_ops = &ali_early_port_ops
|
||||
};
|
||||
/* Revision 0x20 added DMA */
|
||||
static struct ata_port_info info_20 = {
|
||||
.sht = &ali_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &ali_20_port_ops
|
||||
};
|
||||
/* Revision 0x20 with support logic added UDMA */
|
||||
static struct ata_port_info info_20_udma = {
|
||||
.sht = &ali_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x07, /* UDMA33 */
|
||||
.port_ops = &ali_20_port_ops
|
||||
};
|
||||
/* Revision 0xC2 adds UDMA66 */
|
||||
static struct ata_port_info info_c2 = {
|
||||
.sht = &ali_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x1f,
|
||||
.port_ops = &ali_c2_port_ops
|
||||
};
|
||||
/* Revision 0xC3 is UDMA100 */
|
||||
static struct ata_port_info info_c3 = {
|
||||
.sht = &ali_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f,
|
||||
.port_ops = &ali_c2_port_ops
|
||||
};
|
||||
/* Revision 0xC4 is UDMA133 */
|
||||
static struct ata_port_info info_c4 = {
|
||||
.sht = &ali_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST | ATA_FLAG_PIO_LBA48,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7f,
|
||||
.port_ops = &ali_c2_port_ops
|
||||
};
|
||||
/* Revision 0xC5 is UDMA133 with LBA48 DMA */
|
||||
static struct ata_port_info info_c5 = {
|
||||
.sht = &ali_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7f,
|
||||
.port_ops = &ali_c5_port_ops
|
||||
};
|
||||
|
||||
static struct ata_port_info *port_info[2];
|
||||
u8 rev, tmp;
|
||||
struct pci_dev *north, *isa_bridge;
|
||||
|
||||
pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
|
||||
|
||||
/*
|
||||
* The chipset revision selects the driver operations and
|
||||
* mode data.
|
||||
*/
|
||||
|
||||
if (rev < 0x20) {
|
||||
port_info[0] = port_info[1] = &info_early;
|
||||
} else if (rev < 0xC2) {
|
||||
/* 1543-E/F, 1543C-C, 1543C-D, 1543C-E */
|
||||
pci_read_config_byte(pdev, 0x4B, &tmp);
|
||||
/* Clear CD-ROM DMA write bit */
|
||||
tmp &= 0x7F;
|
||||
pci_write_config_byte(pdev, 0x4B, tmp);
|
||||
port_info[0] = port_info[1] = &info_20;
|
||||
} else if (rev == 0xC2) {
|
||||
port_info[0] = port_info[1] = &info_c2;
|
||||
} else if (rev == 0xC3) {
|
||||
port_info[0] = port_info[1] = &info_c3;
|
||||
} else if (rev == 0xC4) {
|
||||
port_info[0] = port_info[1] = &info_c4;
|
||||
} else
|
||||
port_info[0] = port_info[1] = &info_c5;
|
||||
|
||||
if (rev >= 0xC2) {
|
||||
/* Enable cable detection logic */
|
||||
pci_read_config_byte(pdev, 0x4B, &tmp);
|
||||
pci_write_config_byte(pdev, 0x4B, tmp | 0x08);
|
||||
}
|
||||
|
||||
north = pci_get_slot(pdev->bus, PCI_DEVFN(0,0));
|
||||
isa_bridge = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
|
||||
|
||||
if (north && north->vendor == PCI_VENDOR_ID_AL) {
|
||||
/* Configure the ALi bridge logic. For non ALi rely on BIOS.
|
||||
Set the south bridge enable bit */
|
||||
pci_read_config_byte(isa_bridge, 0x79, &tmp);
|
||||
if (rev == 0xC2)
|
||||
pci_write_config_byte(isa_bridge, 0x79, tmp | 0x04);
|
||||
else if (rev > 0xC2)
|
||||
pci_write_config_byte(isa_bridge, 0x79, tmp | 0x02);
|
||||
}
|
||||
|
||||
if (rev >= 0x20) {
|
||||
if (rev < 0xC2) {
|
||||
/* Are we paired with a UDMA capable chip */
|
||||
pci_read_config_byte(isa_bridge, 0x5E, &tmp);
|
||||
if ((tmp & 0x1E) == 0x12)
|
||||
port_info[0] = port_info[1] = &info_20_udma;
|
||||
}
|
||||
/*
|
||||
* CD_ROM DMA on (0x53 bit 0). Enable this even if we want
|
||||
* to use PIO. 0x53 bit 1 (rev 20 only) - enable FIFO control
|
||||
* via 0x54/55.
|
||||
*/
|
||||
pci_read_config_byte(pdev, 0x53, &tmp);
|
||||
if (rev <= 0x20)
|
||||
tmp &= ~0x02;
|
||||
if (rev == 0xc7)
|
||||
tmp |= 0x03;
|
||||
else
|
||||
tmp |= 0x01; /* CD_ROM enable for DMA */
|
||||
pci_write_config_byte(pdev, 0x53, tmp);
|
||||
}
|
||||
|
||||
pci_dev_put(isa_bridge);
|
||||
pci_dev_put(north);
|
||||
|
||||
ata_pci_clear_simplex(pdev);
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id ali[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5228), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver ali_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = ali,
|
||||
.probe = ali_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init ali_init(void)
|
||||
{
|
||||
return pci_register_driver(&ali_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit ali_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&ali_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for ALi PATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, ali);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(ali_init);
|
||||
module_exit(ali_exit);
|
||||
707
drivers/ata/pata_amd.c
Normal file
707
drivers/ata/pata_amd.c
Normal file
|
|
@ -0,0 +1,707 @@
|
|||
/*
|
||||
* pata_amd.c - AMD PATA for new ATA layer
|
||||
* (C) 2005-2006 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Based on pata-sil680. Errata information is taken from data sheets
|
||||
* and the amd74xx.c driver by Vojtech Pavlik. Nvidia SATA devices are
|
||||
* claimed by sata-nv.c.
|
||||
*
|
||||
* TODO:
|
||||
* Variable system clock when/if it makes sense
|
||||
* Power management on ports
|
||||
*
|
||||
*
|
||||
* Documentation publically available.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_amd"
|
||||
#define DRV_VERSION "0.2.2"
|
||||
|
||||
/**
|
||||
* timing_setup - shared timing computation and load
|
||||
* @ap: ATA port being set up
|
||||
* @adev: drive being configured
|
||||
* @offset: port offset
|
||||
* @speed: target speed
|
||||
* @clock: clock multiplier (number of times 33MHz for this part)
|
||||
*
|
||||
* Perform the actual timing set up for Nvidia or AMD PATA devices.
|
||||
* The actual devices vary so they all call into this helper function
|
||||
* providing the clock multipler and offset (because AMD and Nvidia put
|
||||
* the ports at different locations).
|
||||
*/
|
||||
|
||||
static void timing_setup(struct ata_port *ap, struct ata_device *adev, int offset, int speed, int clock)
|
||||
{
|
||||
static const unsigned char amd_cyc2udma[] = {
|
||||
6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct ata_device *peer = ata_dev_pair(adev);
|
||||
int dn = ap->port_no * 2 + adev->devno;
|
||||
struct ata_timing at, apeer;
|
||||
int T, UT;
|
||||
const int amd_clock = 33333; /* KHz. */
|
||||
u8 t;
|
||||
|
||||
T = 1000000000 / amd_clock;
|
||||
UT = T / min_t(int, max_t(int, clock, 1), 2);
|
||||
|
||||
if (ata_timing_compute(adev, speed, &at, T, UT) < 0) {
|
||||
dev_printk(KERN_ERR, &pdev->dev, "unknown mode %d.\n", speed);
|
||||
return;
|
||||
}
|
||||
|
||||
if (peer) {
|
||||
/* This may be over conservative */
|
||||
if (peer->dma_mode) {
|
||||
ata_timing_compute(peer, peer->dma_mode, &apeer, T, UT);
|
||||
ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
|
||||
}
|
||||
ata_timing_compute(peer, peer->pio_mode, &apeer, T, UT);
|
||||
ata_timing_merge(&apeer, &at, &at, ATA_TIMING_8BIT);
|
||||
}
|
||||
|
||||
if (speed == XFER_UDMA_5 && amd_clock <= 33333) at.udma = 1;
|
||||
if (speed == XFER_UDMA_6 && amd_clock <= 33333) at.udma = 15;
|
||||
|
||||
/*
|
||||
* Now do the setup work
|
||||
*/
|
||||
|
||||
/* Configure the address set up timing */
|
||||
pci_read_config_byte(pdev, offset + 0x0C, &t);
|
||||
t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(at.setup, 1, 4) - 1) << ((3 - dn) << 1));
|
||||
pci_write_config_byte(pdev, offset + 0x0C , t);
|
||||
|
||||
/* Configure the 8bit I/O timing */
|
||||
pci_write_config_byte(pdev, offset + 0x0E + (1 - (dn >> 1)),
|
||||
((FIT(at.act8b, 1, 16) - 1) << 4) | (FIT(at.rec8b, 1, 16) - 1));
|
||||
|
||||
/* Drive timing */
|
||||
pci_write_config_byte(pdev, offset + 0x08 + (3 - dn),
|
||||
((FIT(at.active, 1, 16) - 1) << 4) | (FIT(at.recover, 1, 16) - 1));
|
||||
|
||||
switch (clock) {
|
||||
case 1:
|
||||
t = at.udma ? (0xc0 | (FIT(at.udma, 2, 5) - 2)) : 0x03;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 2, 10)]) : 0x03;
|
||||
break;
|
||||
|
||||
case 3:
|
||||
t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 10)]) : 0x03;
|
||||
break;
|
||||
|
||||
case 4:
|
||||
t = at.udma ? (0xc0 | amd_cyc2udma[FIT(at.udma, 1, 15)]) : 0x03;
|
||||
break;
|
||||
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
/* UDMA timing */
|
||||
pci_write_config_byte(pdev, offset + 0x10 + (3 - dn), t);
|
||||
}
|
||||
|
||||
/**
|
||||
* amd_probe_init - cable detection
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform cable detection. The BIOS stores this in PCI config
|
||||
* space for us.
|
||||
*/
|
||||
|
||||
static int amd_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
static const u32 bitmask[2] = {0x03, 0xC0};
|
||||
static const struct pci_bits amd_enable_bits[] = {
|
||||
{ 0x40, 1, 0x02, 0x02 },
|
||||
{ 0x40, 1, 0x01, 0x01 }
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 ata66;
|
||||
|
||||
if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
|
||||
pci_read_config_byte(pdev, 0x42, &ata66);
|
||||
if (ata66 & bitmask[ap->port_no])
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
|
||||
}
|
||||
|
||||
static void amd_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, amd_pre_reset,
|
||||
ata_std_softreset, NULL,
|
||||
ata_std_postreset);
|
||||
}
|
||||
|
||||
static int amd_early_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static struct pci_bits amd_enable_bits[] = {
|
||||
{ 0x40, 1, 0x02, 0x02 },
|
||||
{ 0x40, 1, 0x01, 0x01 }
|
||||
};
|
||||
|
||||
if (!pci_test_config_bits(pdev, &amd_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
/* No host side cable detection */
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
|
||||
}
|
||||
|
||||
static void amd_early_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, amd_early_pre_reset,
|
||||
ata_std_softreset, NULL,
|
||||
ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* amd33_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the AMD registers for PIO mode.
|
||||
*/
|
||||
|
||||
static void amd33_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x40, adev->pio_mode, 1);
|
||||
}
|
||||
|
||||
static void amd66_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x40, adev->pio_mode, 2);
|
||||
}
|
||||
|
||||
static void amd100_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x40, adev->pio_mode, 3);
|
||||
}
|
||||
|
||||
static void amd133_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x40, adev->pio_mode, 4);
|
||||
}
|
||||
|
||||
/**
|
||||
* amd33_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the MWDMA/UDMA modes for the AMD and Nvidia
|
||||
* chipset.
|
||||
*/
|
||||
|
||||
static void amd33_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x40, adev->dma_mode, 1);
|
||||
}
|
||||
|
||||
static void amd66_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x40, adev->dma_mode, 2);
|
||||
}
|
||||
|
||||
static void amd100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x40, adev->dma_mode, 3);
|
||||
}
|
||||
|
||||
static void amd133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x40, adev->dma_mode, 4);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* nv_probe_init - cable detection
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform cable detection. The BIOS stores this in PCI config
|
||||
* space for us.
|
||||
*/
|
||||
|
||||
static int nv_pre_reset(struct ata_port *ap) {
|
||||
static const u8 bitmask[2] = {0x03, 0xC0};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 ata66;
|
||||
u16 udma;
|
||||
|
||||
pci_read_config_byte(pdev, 0x52, &ata66);
|
||||
if (ata66 & bitmask[ap->port_no])
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
|
||||
/* We now have to double check because the Nvidia boxes BIOS
|
||||
doesn't always set the cable bits but does set mode bits */
|
||||
|
||||
pci_read_config_word(pdev, 0x62 - 2 * ap->port_no, &udma);
|
||||
if ((udma & 0xC4) == 0xC4 || (udma & 0xC400) == 0xC400)
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void nv_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, nv_pre_reset,
|
||||
ata_std_softreset, NULL,
|
||||
ata_std_postreset);
|
||||
}
|
||||
/**
|
||||
* nv100_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the AMD registers for PIO mode.
|
||||
*/
|
||||
|
||||
static void nv100_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x50, adev->pio_mode, 3);
|
||||
}
|
||||
|
||||
static void nv133_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x50, adev->pio_mode, 4);
|
||||
}
|
||||
|
||||
/**
|
||||
* nv100_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the MWDMA/UDMA modes for the AMD and Nvidia
|
||||
* chipset.
|
||||
*/
|
||||
|
||||
static void nv100_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x50, adev->dma_mode, 3);
|
||||
}
|
||||
|
||||
static void nv133_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
timing_setup(ap, adev, 0x50, adev->dma_mode, 4);
|
||||
}
|
||||
|
||||
static struct scsi_host_template amd_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations amd33_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = amd33_set_piomode,
|
||||
.set_dmamode = amd33_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = amd_early_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations amd66_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = amd66_set_piomode,
|
||||
.set_dmamode = amd66_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = amd_early_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations amd100_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = amd100_set_piomode,
|
||||
.set_dmamode = amd100_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = amd_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations amd133_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = amd133_set_piomode,
|
||||
.set_dmamode = amd133_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = amd_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations nv100_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = nv100_set_piomode,
|
||||
.set_dmamode = nv100_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = nv_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations nv133_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = nv133_set_piomode,
|
||||
.set_dmamode = nv133_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = nv_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info[10] = {
|
||||
{ /* 0: AMD 7401 */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07, /* No SWDMA */
|
||||
.udma_mask = 0x07, /* UDMA 33 */
|
||||
.port_ops = &amd33_port_ops
|
||||
},
|
||||
{ /* 1: Early AMD7409 - no swdma */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x1f, /* UDMA 66 */
|
||||
.port_ops = &amd66_port_ops
|
||||
},
|
||||
{ /* 2: AMD 7409, no swdma errata */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x1f, /* UDMA 66 */
|
||||
.port_ops = &amd66_port_ops
|
||||
},
|
||||
{ /* 3: AMD 7411 */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f, /* UDMA 100 */
|
||||
.port_ops = &amd100_port_ops
|
||||
},
|
||||
{ /* 4: AMD 7441 */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f, /* UDMA 100 */
|
||||
.port_ops = &amd100_port_ops
|
||||
},
|
||||
{ /* 5: AMD 8111*/
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7f, /* UDMA 133, no swdma */
|
||||
.port_ops = &amd133_port_ops
|
||||
},
|
||||
{ /* 6: AMD 8111 UDMA 100 (Serenade) */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f, /* UDMA 100, no swdma */
|
||||
.port_ops = &amd133_port_ops
|
||||
},
|
||||
{ /* 7: Nvidia Nforce */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f, /* UDMA 100 */
|
||||
.port_ops = &nv100_port_ops
|
||||
},
|
||||
{ /* 8: Nvidia Nforce2 and later */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7f, /* UDMA 133, no swdma */
|
||||
.port_ops = &nv133_port_ops
|
||||
},
|
||||
{ /* 9: AMD CS5536 (Geode companion) */
|
||||
.sht = &amd_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f, /* UDMA 100 */
|
||||
.port_ops = &amd100_port_ops
|
||||
}
|
||||
};
|
||||
static struct ata_port_info *port_info[2];
|
||||
static int printed_version;
|
||||
int type = id->driver_data;
|
||||
u8 rev;
|
||||
u8 fifo;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
|
||||
|
||||
pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
|
||||
pci_read_config_byte(pdev, 0x41, &fifo);
|
||||
|
||||
/* Check for AMD7409 without swdma errata and if found adjust type */
|
||||
if (type == 1 && rev > 0x7)
|
||||
type = 2;
|
||||
|
||||
/* Check for AMD7411 */
|
||||
if (type == 3)
|
||||
/* FIFO is broken */
|
||||
pci_write_config_byte(pdev, 0x41, fifo & 0x0F);
|
||||
else
|
||||
pci_write_config_byte(pdev, 0x41, fifo | 0xF0);
|
||||
|
||||
/* Serenade ? */
|
||||
if (type == 5 && pdev->subsystem_vendor == PCI_VENDOR_ID_AMD &&
|
||||
pdev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE)
|
||||
type = 6; /* UDMA 100 only */
|
||||
|
||||
if (type < 3)
|
||||
ata_pci_clear_simplex(pdev);
|
||||
|
||||
/* And fire it up */
|
||||
|
||||
port_info[0] = port_info[1] = &info[type];
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id amd[] = {
|
||||
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_COBRA_7401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
|
||||
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7409, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1 },
|
||||
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7411, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3 },
|
||||
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_OPUS_7441, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4 },
|
||||
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8 },
|
||||
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_IDE, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9 },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver amd_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = amd,
|
||||
.probe = amd_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init amd_init(void)
|
||||
{
|
||||
return pci_register_driver(&amd_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit amd_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&amd_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for AMD PATA IDE");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, amd);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(amd_init);
|
||||
module_exit(amd_exit);
|
||||
518
drivers/ata/pata_artop.c
Normal file
518
drivers/ata/pata_artop.c
Normal file
|
|
@ -0,0 +1,518 @@
|
|||
/*
|
||||
* pata_artop.c - ARTOP ATA controller driver
|
||||
*
|
||||
* (C) 2006 Red Hat <alan@redhat.com>
|
||||
*
|
||||
* Based in part on drivers/ide/pci/aec62xx.c
|
||||
* Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
|
||||
* 865/865R fixes for Macintosh card version from a patch to the old
|
||||
* driver by Thibaut VARENE <varenet@parisc-linux.org>
|
||||
* When setting the PCI latency we must set 0x80 or higher for burst
|
||||
* performance Alessandro Zummo <alessandro.zummo@towertech.it>
|
||||
*
|
||||
* TODO
|
||||
* 850 serialization once the core supports it
|
||||
* Investigate no_dsc on 850R
|
||||
* Clock detect
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/device.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/ata.h>
|
||||
|
||||
#define DRV_NAME "pata_artop"
|
||||
#define DRV_VERSION "0.4.1"
|
||||
|
||||
/*
|
||||
* The ARTOP has 33 Mhz and "over clocked" timing tables. Until we
|
||||
* get PCI bus speed functionality we leave this as 0. Its a variable
|
||||
* for when we get the functionality and also for folks wanting to
|
||||
* test stuff.
|
||||
*/
|
||||
|
||||
static int clock = 0;
|
||||
|
||||
static int artop6210_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
const struct pci_bits artop_enable_bits[] = {
|
||||
{ 0x4AU, 1U, 0x02UL, 0x02UL }, /* port 0 */
|
||||
{ 0x4AU, 1U, 0x04UL, 0x04UL }, /* port 1 */
|
||||
};
|
||||
|
||||
if (!pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6210_error_handler - Probe specified port on PATA host controller
|
||||
* @ap: Port to probe
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void artop6210_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, artop6210_pre_reset,
|
||||
ata_std_softreset, NULL,
|
||||
ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6260_pre_reset - check for 40/80 pin
|
||||
* @ap: Port
|
||||
*
|
||||
* The ARTOP hardware reports the cable detect bits in register 0x49.
|
||||
* Nothing complicated needed here.
|
||||
*/
|
||||
|
||||
static int artop6260_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
static const struct pci_bits artop_enable_bits[] = {
|
||||
{ 0x4AU, 1U, 0x02UL, 0x02UL }, /* port 0 */
|
||||
{ 0x4AU, 1U, 0x04UL, 0x04UL }, /* port 1 */
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 tmp;
|
||||
|
||||
/* Odd numbered device ids are the units with enable bits (the -R cards) */
|
||||
if (pdev->device % 1 && !pci_test_config_bits(pdev, &artop_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
pci_read_config_byte(pdev, 0x49, &tmp);
|
||||
if (tmp & (1 >> ap->port_no))
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6260_error_handler - Probe specified port on PATA host controller
|
||||
* @ap: Port to probe
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void artop6260_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, artop6260_pre_reset,
|
||||
ata_std_softreset, NULL,
|
||||
ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6210_load_piomode - Load a set of PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: Device
|
||||
* @pio: PIO mode
|
||||
*
|
||||
* Set PIO mode for device, in host controller PCI config space. This
|
||||
* is used both to set PIO timings in PIO mode and also to set the
|
||||
* matching PIO clocking for UDMA, as well as the MWDMA timings.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void artop6210_load_piomode(struct ata_port *ap, struct ata_device *adev, unsigned int pio)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dn = adev->devno + 2 * ap->port_no;
|
||||
const u16 timing[2][5] = {
|
||||
{ 0x0000, 0x000A, 0x0008, 0x0303, 0x0301 },
|
||||
{ 0x0700, 0x070A, 0x0708, 0x0403, 0x0401 }
|
||||
|
||||
};
|
||||
/* Load the PIO timing active/recovery bits */
|
||||
pci_write_config_word(pdev, 0x40 + 2 * dn, timing[clock][pio]);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6210_set_piomode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: Device we are configuring
|
||||
*
|
||||
* Set PIO mode for device, in host controller PCI config space. For
|
||||
* ARTOP we must also clear the UDMA bits if we are not doing UDMA. In
|
||||
* the event UDMA is used the later call to set_dmamode will set the
|
||||
* bits as required.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void artop6210_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dn = adev->devno + 2 * ap->port_no;
|
||||
u8 ultra;
|
||||
|
||||
artop6210_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
|
||||
|
||||
/* Clear the UDMA mode bits (set_dmamode will redo this if needed) */
|
||||
pci_read_config_byte(pdev, 0x54, &ultra);
|
||||
ultra &= ~(3 << (2 * dn));
|
||||
pci_write_config_byte(pdev, 0x54, ultra);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6260_load_piomode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: Device we are configuring
|
||||
* @pio: PIO mode
|
||||
*
|
||||
* Set PIO mode for device, in host controller PCI config space. The
|
||||
* ARTOP6260 and relatives store the timing data differently.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void artop6260_load_piomode (struct ata_port *ap, struct ata_device *adev, unsigned int pio)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dn = adev->devno + 2 * ap->port_no;
|
||||
const u8 timing[2][5] = {
|
||||
{ 0x00, 0x0A, 0x08, 0x33, 0x31 },
|
||||
{ 0x70, 0x7A, 0x78, 0x43, 0x41 }
|
||||
|
||||
};
|
||||
/* Load the PIO timing active/recovery bits */
|
||||
pci_write_config_byte(pdev, 0x40 + dn, timing[clock][pio]);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6260_set_piomode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: Device we are configuring
|
||||
*
|
||||
* Set PIO mode for device, in host controller PCI config space. For
|
||||
* ARTOP we must also clear the UDMA bits if we are not doing UDMA. In
|
||||
* the event UDMA is used the later call to set_dmamode will set the
|
||||
* bits as required.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void artop6260_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 ultra;
|
||||
|
||||
artop6260_load_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
|
||||
|
||||
/* Clear the UDMA mode bits (set_dmamode will redo this if needed) */
|
||||
pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra);
|
||||
ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */
|
||||
pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6210_set_dmamode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: um
|
||||
*
|
||||
* Set DMA mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void artop6210_set_dmamode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned int pio;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dn = adev->devno + 2 * ap->port_no;
|
||||
u8 ultra;
|
||||
|
||||
if (adev->dma_mode == XFER_MW_DMA_0)
|
||||
pio = 1;
|
||||
else
|
||||
pio = 4;
|
||||
|
||||
/* Load the PIO timing active/recovery bits */
|
||||
artop6210_load_piomode(ap, adev, pio);
|
||||
|
||||
pci_read_config_byte(pdev, 0x54, &ultra);
|
||||
ultra &= ~(3 << (2 * dn));
|
||||
|
||||
/* Add ultra DMA bits if in UDMA mode */
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
u8 mode = (adev->dma_mode - XFER_UDMA_0) + 1 - clock;
|
||||
if (mode == 0)
|
||||
mode = 1;
|
||||
ultra |= (mode << (2 * dn));
|
||||
}
|
||||
pci_write_config_byte(pdev, 0x54, ultra);
|
||||
}
|
||||
|
||||
/**
|
||||
* artop6260_set_dmamode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: Device we are configuring
|
||||
*
|
||||
* Set DMA mode for device, in host controller PCI config space. The
|
||||
* ARTOP6260 and relatives store the timing data differently.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void artop6260_set_dmamode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned int pio = adev->pio_mode - XFER_PIO_0;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 ultra;
|
||||
|
||||
if (adev->dma_mode == XFER_MW_DMA_0)
|
||||
pio = 1;
|
||||
else
|
||||
pio = 4;
|
||||
|
||||
/* Load the PIO timing active/recovery bits */
|
||||
artop6260_load_piomode(ap, adev, pio);
|
||||
|
||||
/* Add ultra DMA bits if in UDMA mode */
|
||||
pci_read_config_byte(pdev, 0x44 + ap->port_no, &ultra);
|
||||
ultra &= ~(7 << (4 * adev->devno)); /* One nibble per drive */
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
u8 mode = adev->dma_mode - XFER_UDMA_0 + 1 - clock;
|
||||
if (mode == 0)
|
||||
mode = 1;
|
||||
ultra |= (mode << (4 * adev->devno));
|
||||
}
|
||||
pci_write_config_byte(pdev, 0x44 + ap->port_no, ultra);
|
||||
}
|
||||
|
||||
static struct scsi_host_template artop_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations artop6210_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = artop6210_set_piomode,
|
||||
.set_dmamode = artop6210_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = artop6210_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations artop6260_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = artop6260_set_piomode,
|
||||
.set_dmamode = artop6260_set_dmamode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = artop6260_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* artop_init_one - Register ARTOP ATA PCI device with kernel services
|
||||
* @pdev: PCI device to register
|
||||
* @ent: Entry in artop_pci_tbl matching with @pdev
|
||||
*
|
||||
* Called from kernel PCI layer.
|
||||
*
|
||||
* LOCKING:
|
||||
* Inherited from PCI layer (may sleep).
|
||||
*
|
||||
* RETURNS:
|
||||
* Zero on success, or -ERRNO value.
|
||||
*/
|
||||
|
||||
static int artop_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
static int printed_version;
|
||||
static struct ata_port_info info_6210 = {
|
||||
.sht = &artop_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma0-2 */
|
||||
.udma_mask = ATA_UDMA2,
|
||||
.port_ops = &artop6210_ops,
|
||||
};
|
||||
static struct ata_port_info info_626x = {
|
||||
.sht = &artop_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma0-2 */
|
||||
.udma_mask = ATA_UDMA4,
|
||||
.port_ops = &artop6260_ops,
|
||||
};
|
||||
static struct ata_port_info info_626x_fast = {
|
||||
.sht = &artop_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma0-2 */
|
||||
.udma_mask = ATA_UDMA5,
|
||||
.port_ops = &artop6260_ops,
|
||||
};
|
||||
struct ata_port_info *port_info[2];
|
||||
struct ata_port_info *info;
|
||||
int ports = 2;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev,
|
||||
"version " DRV_VERSION "\n");
|
||||
|
||||
if (id->driver_data == 0) { /* 6210 variant */
|
||||
info = &info_6210;
|
||||
/* BIOS may have left us in UDMA, clear it before libata probe */
|
||||
pci_write_config_byte(pdev, 0x54, 0);
|
||||
/* For the moment (also lacks dsc) */
|
||||
printk(KERN_WARNING "ARTOP 6210 requires serialize functionality not yet supported by libata.\n");
|
||||
printk(KERN_WARNING "Secondary ATA ports will not be activated.\n");
|
||||
ports = 1;
|
||||
}
|
||||
else if (id->driver_data == 1) /* 6260 */
|
||||
info = &info_626x;
|
||||
else if (id->driver_data == 2) { /* 6260 or 6260 + fast */
|
||||
unsigned long io = pci_resource_start(pdev, 4);
|
||||
u8 reg;
|
||||
|
||||
info = &info_626x;
|
||||
if (inb(io) & 0x10)
|
||||
info = &info_626x_fast;
|
||||
/* Mac systems come up with some registers not set as we
|
||||
will need them */
|
||||
|
||||
/* Clear reset & test bits */
|
||||
pci_read_config_byte(pdev, 0x49, ®);
|
||||
pci_write_config_byte(pdev, 0x49, reg & ~ 0x30);
|
||||
|
||||
/* PCI latency must be > 0x80 for burst mode, tweak it
|
||||
* if required.
|
||||
*/
|
||||
pci_read_config_byte(pdev, PCI_LATENCY_TIMER, ®);
|
||||
if (reg <= 0x80)
|
||||
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x90);
|
||||
|
||||
/* Enable IRQ output and burst mode */
|
||||
pci_read_config_byte(pdev, 0x4a, ®);
|
||||
pci_write_config_byte(pdev, 0x4a, (reg & ~0x01) | 0x80);
|
||||
|
||||
}
|
||||
port_info[0] = port_info[1] = info;
|
||||
return ata_pci_init_one(pdev, port_info, ports);
|
||||
}
|
||||
|
||||
static const struct pci_device_id artop_pci_tbl[] = {
|
||||
{ 0x1191, 0x0005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
||||
{ 0x1191, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
|
||||
{ 0x1191, 0x0007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
|
||||
{ 0x1191, 0x0008, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
|
||||
{ 0x1191, 0x0009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
|
||||
{ } /* terminate list */
|
||||
};
|
||||
|
||||
static struct pci_driver artop_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = artop_pci_tbl,
|
||||
.probe = artop_init_one,
|
||||
.remove = ata_pci_remove_one,
|
||||
};
|
||||
|
||||
static int __init artop_init(void)
|
||||
{
|
||||
return pci_register_driver(&artop_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit artop_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&artop_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
module_init(artop_init);
|
||||
module_exit(artop_exit);
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("SCSI low-level driver for ARTOP PATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, artop_pci_tbl);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
306
drivers/ata/pata_atiixp.c
Normal file
306
drivers/ata/pata_atiixp.c
Normal file
|
|
@ -0,0 +1,306 @@
|
|||
/*
|
||||
* pata_atiixp.c - ATI PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Based on
|
||||
*
|
||||
* linux/drivers/ide/pci/atiixp.c Version 0.01-bart2 Feb. 26, 2004
|
||||
*
|
||||
* Copyright (C) 2003 ATI Inc. <hyu@ati.com>
|
||||
* Copyright (C) 2004 Bartlomiej Zolnierkiewicz
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_atiixp"
|
||||
#define DRV_VERSION "0.4.2"
|
||||
|
||||
enum {
|
||||
ATIIXP_IDE_PIO_TIMING = 0x40,
|
||||
ATIIXP_IDE_MWDMA_TIMING = 0x44,
|
||||
ATIIXP_IDE_PIO_CONTROL = 0x48,
|
||||
ATIIXP_IDE_PIO_MODE = 0x4a,
|
||||
ATIIXP_IDE_UDMA_CONTROL = 0x54,
|
||||
ATIIXP_IDE_UDMA_MODE = 0x56
|
||||
};
|
||||
|
||||
static int atiixp_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static struct pci_bits atiixp_enable_bits[] = {
|
||||
{ 0x48, 1, 0x01, 0x00 },
|
||||
{ 0x48, 1, 0x08, 0x00 }
|
||||
};
|
||||
|
||||
if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void atiixp_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, atiixp_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* atiixp_set_pio_timing - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called by both the pio and dma setup functions to set the controller
|
||||
* timings for PIO transfers. We must load both the mode number and
|
||||
* timing values into the controller.
|
||||
*/
|
||||
|
||||
static void atiixp_set_pio_timing(struct ata_port *ap, struct ata_device *adev, int pio)
|
||||
{
|
||||
static u8 pio_timings[5] = { 0x5D, 0x47, 0x34, 0x22, 0x20 };
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dn = 2 * ap->port_no + adev->devno;
|
||||
|
||||
/* Check this is correct - the order is odd in both drivers */
|
||||
int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1);
|
||||
u16 pio_mode_data, pio_timing_data;
|
||||
|
||||
pci_read_config_word(pdev, ATIIXP_IDE_PIO_MODE, &pio_mode_data);
|
||||
pio_mode_data &= ~(0x7 << (4 * dn));
|
||||
pio_mode_data |= pio << (4 * dn);
|
||||
pci_write_config_word(pdev, ATIIXP_IDE_PIO_MODE, pio_mode_data);
|
||||
|
||||
pci_read_config_word(pdev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data);
|
||||
pio_mode_data &= ~(0xFF << timing_shift);
|
||||
pio_mode_data |= (pio_timings[pio] << timing_shift);
|
||||
pci_write_config_word(pdev, ATIIXP_IDE_PIO_TIMING, pio_timing_data);
|
||||
}
|
||||
|
||||
/**
|
||||
* atiixp_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the PIO mode setup. We use a shared helper for this
|
||||
* as the DMA setup must also adjust the PIO timing information.
|
||||
*/
|
||||
|
||||
static void atiixp_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
atiixp_set_pio_timing(ap, adev, adev->pio_mode - XFER_PIO_0);
|
||||
}
|
||||
|
||||
/**
|
||||
* atiixp_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the DMA mode setup. We use timing tables for most
|
||||
* modes but must tune an appropriate PIO mode to match.
|
||||
*/
|
||||
|
||||
static void atiixp_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static u8 mwdma_timings[5] = { 0x77, 0x21, 0x20 };
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dma = adev->dma_mode;
|
||||
int dn = 2 * ap->port_no + adev->devno;
|
||||
int wanted_pio;
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
u16 udma_mode_data;
|
||||
|
||||
dma -= XFER_UDMA_0;
|
||||
|
||||
pci_read_config_word(pdev, ATIIXP_IDE_UDMA_MODE, &udma_mode_data);
|
||||
udma_mode_data &= ~(0x7 << (4 * dn));
|
||||
udma_mode_data |= dma << (4 * dn);
|
||||
pci_write_config_word(pdev, ATIIXP_IDE_UDMA_MODE, udma_mode_data);
|
||||
} else {
|
||||
u16 mwdma_timing_data;
|
||||
/* Check this is correct - the order is odd in both drivers */
|
||||
int timing_shift = (16 * ap->port_no) + 8 * (adev->devno ^ 1);
|
||||
|
||||
dma -= XFER_MW_DMA_0;
|
||||
|
||||
pci_read_config_word(pdev, ATIIXP_IDE_MWDMA_TIMING, &mwdma_timing_data);
|
||||
mwdma_timing_data &= ~(0xFF << timing_shift);
|
||||
mwdma_timing_data |= (mwdma_timings[dma] << timing_shift);
|
||||
pci_write_config_word(pdev, ATIIXP_IDE_MWDMA_TIMING, mwdma_timing_data);
|
||||
}
|
||||
/*
|
||||
* We must now look at the PIO mode situation. We may need to
|
||||
* adjust the PIO mode to keep the timings acceptable
|
||||
*/
|
||||
if (adev->dma_mode >= XFER_MW_DMA_2)
|
||||
wanted_pio = 4;
|
||||
else if (adev->dma_mode == XFER_MW_DMA_1)
|
||||
wanted_pio = 3;
|
||||
else if (adev->dma_mode == XFER_MW_DMA_0)
|
||||
wanted_pio = 0;
|
||||
else BUG();
|
||||
|
||||
if (adev->pio_mode != wanted_pio)
|
||||
atiixp_set_pio_timing(ap, adev, wanted_pio);
|
||||
}
|
||||
|
||||
/**
|
||||
* atiixp_bmdma_start - DMA start callback
|
||||
* @qc: Command in progress
|
||||
*
|
||||
* When DMA begins we need to ensure that the UDMA control
|
||||
* register for the channel is correctly set.
|
||||
*/
|
||||
|
||||
static void atiixp_bmdma_start(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dn = (2 * ap->port_no) + adev->devno;
|
||||
u16 tmp16;
|
||||
|
||||
pci_read_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, &tmp16);
|
||||
if (adev->dma_mode >= XFER_UDMA_0)
|
||||
tmp16 |= (1 << dn);
|
||||
else
|
||||
tmp16 &= ~(1 << dn);
|
||||
pci_write_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, tmp16);
|
||||
ata_bmdma_start(qc);
|
||||
}
|
||||
|
||||
/**
|
||||
* atiixp_dma_stop - DMA stop callback
|
||||
* @qc: Command in progress
|
||||
*
|
||||
* DMA has completed. Clear the UDMA flag as the next operations will
|
||||
* be PIO ones not UDMA data transfer.
|
||||
*/
|
||||
|
||||
static void atiixp_bmdma_stop(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dn = (2 * ap->port_no) + qc->dev->devno;
|
||||
u16 tmp16;
|
||||
|
||||
pci_read_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, &tmp16);
|
||||
tmp16 &= ~(1 << dn);
|
||||
pci_write_config_word(pdev, ATIIXP_IDE_UDMA_CONTROL, tmp16);
|
||||
ata_bmdma_stop(qc);
|
||||
}
|
||||
|
||||
static struct scsi_host_template atiixp_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations atiixp_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = atiixp_set_piomode,
|
||||
.set_dmamode = atiixp_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = atiixp_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = atiixp_bmdma_start,
|
||||
.bmdma_stop = atiixp_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &atiixp_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x06, /* No MWDMA0 support */
|
||||
.udma_mask = 0x3F,
|
||||
.port_ops = &atiixp_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id atiixp[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP200_IDE), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP300_IDE), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver atiixp_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = atiixp,
|
||||
.probe = atiixp_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init atiixp_init(void)
|
||||
{
|
||||
return pci_register_driver(&atiixp_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit atiixp_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&atiixp_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for ATI IXP200/300/400");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, atiixp);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(atiixp_init);
|
||||
module_exit(atiixp_exit);
|
||||
505
drivers/ata/pata_cmd64x.c
Normal file
505
drivers/ata/pata_cmd64x.c
Normal file
|
|
@ -0,0 +1,505 @@
|
|||
/*
|
||||
* pata_cmd64x.c - ATI PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Based upon
|
||||
* linux/drivers/ide/pci/cmd64x.c Version 1.30 Sept 10, 2002
|
||||
*
|
||||
* cmd64x.c: Enable interrupts at initialization time on Ultra/PCI machines.
|
||||
* Note, this driver is not used at all on other systems because
|
||||
* there the "BIOS" has done all of the following already.
|
||||
* Due to massive hardware bugs, UltraDMA is only supported
|
||||
* on the 646U2 and not on the 646U.
|
||||
*
|
||||
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
|
||||
* Copyright (C) 1998 David S. Miller (davem@redhat.com)
|
||||
*
|
||||
* Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
|
||||
*
|
||||
* TODO
|
||||
* Testing work
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_cmd64x"
|
||||
#define DRV_VERSION "0.2.1"
|
||||
|
||||
/*
|
||||
* CMD64x specific registers definition.
|
||||
*/
|
||||
|
||||
enum {
|
||||
CFR = 0x50,
|
||||
CFR_INTR_CH0 = 0x02,
|
||||
CNTRL = 0x51,
|
||||
CNTRL_DIS_RA0 = 0x40,
|
||||
CNTRL_DIS_RA1 = 0x80,
|
||||
CNTRL_ENA_2ND = 0x08,
|
||||
CMDTIM = 0x52,
|
||||
ARTTIM0 = 0x53,
|
||||
DRWTIM0 = 0x54,
|
||||
ARTTIM1 = 0x55,
|
||||
DRWTIM1 = 0x56,
|
||||
ARTTIM23 = 0x57,
|
||||
ARTTIM23_DIS_RA2 = 0x04,
|
||||
ARTTIM23_DIS_RA3 = 0x08,
|
||||
ARTTIM23_INTR_CH1 = 0x10,
|
||||
ARTTIM2 = 0x57,
|
||||
ARTTIM3 = 0x57,
|
||||
DRWTIM23 = 0x58,
|
||||
DRWTIM2 = 0x58,
|
||||
BRST = 0x59,
|
||||
DRWTIM3 = 0x5b,
|
||||
BMIDECR0 = 0x70,
|
||||
MRDMODE = 0x71,
|
||||
MRDMODE_INTR_CH0 = 0x04,
|
||||
MRDMODE_INTR_CH1 = 0x08,
|
||||
MRDMODE_BLK_CH0 = 0x10,
|
||||
MRDMODE_BLK_CH1 = 0x20,
|
||||
BMIDESR0 = 0x72,
|
||||
UDIDETCR0 = 0x73,
|
||||
DTPR0 = 0x74,
|
||||
BMIDECR1 = 0x78,
|
||||
BMIDECSR = 0x79,
|
||||
BMIDESR1 = 0x7A,
|
||||
UDIDETCR1 = 0x7B,
|
||||
DTPR1 = 0x7C
|
||||
};
|
||||
|
||||
static int cmd64x_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static int cmd648_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 r;
|
||||
|
||||
/* Check cable detect bits */
|
||||
pci_read_config_byte(pdev, BMIDECSR, &r);
|
||||
if (r & (1 << ap->port_no))
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void cmd64x_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, cmd64x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
static void cmd648_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, cmd648_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* cmd64x_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the PIO mode setup.
|
||||
*/
|
||||
|
||||
static void cmd64x_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct ata_timing t;
|
||||
const unsigned long T = 1000000 / 33;
|
||||
const u8 setup_data[] = { 0x40, 0x40, 0x40, 0x80, 0x00 };
|
||||
|
||||
u8 reg;
|
||||
|
||||
/* Port layout is not logical so use a table */
|
||||
const u8 arttim_port[2][2] = {
|
||||
{ ARTTIM0, ARTTIM1 },
|
||||
{ ARTTIM23, ARTTIM23 }
|
||||
};
|
||||
const u8 drwtim_port[2][2] = {
|
||||
{ DRWTIM0, DRWTIM1 },
|
||||
{ DRWTIM2, DRWTIM3 }
|
||||
};
|
||||
|
||||
int arttim = arttim_port[ap->port_no][adev->devno];
|
||||
int drwtim = drwtim_port[ap->port_no][adev->devno];
|
||||
|
||||
|
||||
if (ata_timing_compute(adev, adev->pio_mode, &t, T, 0) < 0) {
|
||||
printk(KERN_ERR DRV_NAME ": mode computation failed.\n");
|
||||
return;
|
||||
}
|
||||
if (ap->port_no) {
|
||||
/* Slave has shared address setup */
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
|
||||
if (pair) {
|
||||
struct ata_timing tp;
|
||||
ata_timing_compute(pair, pair->pio_mode, &tp, T, 0);
|
||||
ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP);
|
||||
}
|
||||
}
|
||||
|
||||
printk(KERN_DEBUG DRV_NAME ": active %d recovery %d setup %d.\n",
|
||||
t.active, t.recover, t.setup);
|
||||
if (t.recover > 16) {
|
||||
t.active += t.recover - 16;
|
||||
t.recover = 16;
|
||||
}
|
||||
if (t.active > 16)
|
||||
t.active = 16;
|
||||
|
||||
/* Now convert the clocks into values we can actually stuff into
|
||||
the chip */
|
||||
|
||||
if (t.recover > 1)
|
||||
t.recover--;
|
||||
else
|
||||
t.recover = 15;
|
||||
|
||||
if (t.setup > 4)
|
||||
t.setup = 0xC0;
|
||||
else
|
||||
t.setup = setup_data[t.setup];
|
||||
|
||||
t.active &= 0x0F; /* 0 = 16 */
|
||||
|
||||
/* Load setup timing */
|
||||
pci_read_config_byte(pdev, arttim, ®);
|
||||
reg &= 0x3F;
|
||||
reg |= t.setup;
|
||||
pci_write_config_byte(pdev, arttim, reg);
|
||||
|
||||
/* Load active/recovery */
|
||||
pci_write_config_byte(pdev, drwtim, (t.active << 4) | t.recover);
|
||||
}
|
||||
|
||||
/**
|
||||
* cmd64x_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the DMA mode setup.
|
||||
*/
|
||||
|
||||
static void cmd64x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const u8 udma_data[] = {
|
||||
0x31, 0x21, 0x11, 0x25, 0x15, 0x05
|
||||
};
|
||||
static const u8 mwdma_data[] = {
|
||||
0x30, 0x20, 0x10
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 regU, regD;
|
||||
|
||||
int pciU = UDIDETCR0 + 8 * ap->port_no;
|
||||
int pciD = BMIDESR0 + 8 * ap->port_no;
|
||||
int shift = 2 * adev->devno;
|
||||
|
||||
pci_read_config_byte(pdev, pciD, ®D);
|
||||
pci_read_config_byte(pdev, pciU, ®U);
|
||||
|
||||
regD &= ~(0x20 << shift);
|
||||
regU &= ~(0x35 << shift);
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0)
|
||||
regU |= udma_data[adev->dma_mode - XFER_UDMA_0] << shift;
|
||||
else
|
||||
regD |= mwdma_data[adev->dma_mode - XFER_MW_DMA_0] << shift;
|
||||
|
||||
regD |= 0x20 << adev->devno;
|
||||
|
||||
pci_write_config_byte(pdev, pciU, regU);
|
||||
pci_write_config_byte(pdev, pciD, regD);
|
||||
}
|
||||
|
||||
/**
|
||||
* cmd648_dma_stop - DMA stop callback
|
||||
* @qc: Command in progress
|
||||
*
|
||||
* DMA has completed.
|
||||
*/
|
||||
|
||||
static void cmd648_bmdma_stop(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 dma_intr;
|
||||
int dma_reg = ap->port_no ? ARTTIM23_INTR_CH1 : CFR_INTR_CH0;
|
||||
int dma_mask = ap->port_no ? ARTTIM2 : CFR;
|
||||
|
||||
ata_bmdma_stop(qc);
|
||||
|
||||
pci_read_config_byte(pdev, dma_reg, &dma_intr);
|
||||
pci_write_config_byte(pdev, dma_reg, dma_intr | dma_mask);
|
||||
}
|
||||
|
||||
/**
|
||||
* cmd646r1_dma_stop - DMA stop callback
|
||||
* @qc: Command in progress
|
||||
*
|
||||
* Stub for now while investigating the r1 quirk in the old driver.
|
||||
*/
|
||||
|
||||
static void cmd646r1_bmdma_stop(struct ata_queued_cmd *qc)
|
||||
{
|
||||
ata_bmdma_stop(qc);
|
||||
}
|
||||
|
||||
static struct scsi_host_template cmd64x_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations cmd64x_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = cmd64x_set_piomode,
|
||||
.set_dmamode = cmd64x_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = cmd64x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations cmd646r1_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = cmd64x_set_piomode,
|
||||
.set_dmamode = cmd64x_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = cmd64x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = cmd646r1_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations cmd648_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = cmd64x_set_piomode,
|
||||
.set_dmamode = cmd64x_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = cmd648_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = cmd648_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
u32 class_rev;
|
||||
|
||||
static struct ata_port_info cmd_info[6] = {
|
||||
{ /* CMD 643 - no UDMA */
|
||||
.sht = &cmd64x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &cmd64x_port_ops
|
||||
},
|
||||
{ /* CMD 646 with broken UDMA */
|
||||
.sht = &cmd64x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &cmd64x_port_ops
|
||||
},
|
||||
{ /* CMD 646 with working UDMA */
|
||||
.sht = &cmd64x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = ATA_UDMA1,
|
||||
.port_ops = &cmd64x_port_ops
|
||||
},
|
||||
{ /* CMD 646 rev 1 */
|
||||
.sht = &cmd64x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &cmd646r1_port_ops
|
||||
},
|
||||
{ /* CMD 648 */
|
||||
.sht = &cmd64x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = ATA_UDMA2,
|
||||
.port_ops = &cmd648_port_ops
|
||||
},
|
||||
{ /* CMD 649 */
|
||||
.sht = &cmd64x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = ATA_UDMA3,
|
||||
.port_ops = &cmd648_port_ops
|
||||
}
|
||||
};
|
||||
static struct ata_port_info *port_info[2], *info;
|
||||
u8 mrdmode;
|
||||
|
||||
info = &cmd_info[id->driver_data];
|
||||
|
||||
pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
|
||||
class_rev &= 0xFF;
|
||||
|
||||
if (id->driver_data == 0) /* 643 */
|
||||
ata_pci_clear_simplex(pdev);
|
||||
|
||||
if (pdev->device == PCI_DEVICE_ID_CMD_646) {
|
||||
/* Does UDMA work ? */
|
||||
if (class_rev > 4)
|
||||
info = &cmd_info[2];
|
||||
/* Early rev with other problems ? */
|
||||
else if (class_rev == 1)
|
||||
info = &cmd_info[3];
|
||||
}
|
||||
|
||||
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
|
||||
pci_read_config_byte(pdev, MRDMODE, &mrdmode);
|
||||
mrdmode &= ~ 0x30; /* IRQ set up */
|
||||
mrdmode |= 0x02; /* Memory read line enable */
|
||||
pci_write_config_byte(pdev, MRDMODE, mrdmode);
|
||||
|
||||
/* Force PIO 0 here.. */
|
||||
|
||||
/* PPC specific fixup copied from old driver */
|
||||
#ifdef CONFIG_PPC
|
||||
pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
|
||||
#endif
|
||||
|
||||
port_info[0] = port_info[1] = info;
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id cmd64x[] = {
|
||||
{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_643, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
||||
{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_646, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
|
||||
{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_648, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
|
||||
{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_CMD_649, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver cmd64x_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = cmd64x,
|
||||
.probe = cmd64x_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init cmd64x_init(void)
|
||||
{
|
||||
return pci_register_driver(&cmd64x_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit cmd64x_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&cmd64x_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for CMD64x series PATA controllers");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, cmd64x);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(cmd64x_init);
|
||||
module_exit(cmd64x_exit);
|
||||
336
drivers/ata/pata_cs5520.c
Normal file
336
drivers/ata/pata_cs5520.c
Normal file
|
|
@ -0,0 +1,336 @@
|
|||
/*
|
||||
* IDE tuning and bus mastering support for the CS5510/CS5520
|
||||
* chipsets
|
||||
*
|
||||
* The CS5510/CS5520 are slightly unusual devices. Unlike the
|
||||
* typical IDE controllers they do bus mastering with the drive in
|
||||
* PIO mode and smarter silicon.
|
||||
*
|
||||
* The practical upshot of this is that we must always tune the
|
||||
* drive for the right PIO mode. We must also ignore all the blacklists
|
||||
* and the drive bus mastering DMA information. Also to confuse matters
|
||||
* further we can do DMA on PIO only drives.
|
||||
*
|
||||
* DMA on the 5510 also requires we disable_hlt() during DMA on early
|
||||
* revisions.
|
||||
*
|
||||
* *** This driver is strictly experimental ***
|
||||
*
|
||||
* (c) Copyright Red Hat Inc 2002
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2, or (at your option) any
|
||||
* later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* Documentation:
|
||||
* Not publically available.
|
||||
*/
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_cs5520"
|
||||
#define DRV_VERSION "0.6.2"
|
||||
|
||||
struct pio_clocks
|
||||
{
|
||||
int address;
|
||||
int assert;
|
||||
int recovery;
|
||||
};
|
||||
|
||||
static const struct pio_clocks cs5520_pio_clocks[]={
|
||||
{3, 6, 11},
|
||||
{2, 5, 6},
|
||||
{1, 4, 3},
|
||||
{1, 3, 2},
|
||||
{1, 2, 1}
|
||||
};
|
||||
|
||||
/**
|
||||
* cs5520_set_timings - program PIO timings
|
||||
* @ap: ATA port
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the PIO mode timings for the controller according to the pio
|
||||
* clocking table.
|
||||
*/
|
||||
|
||||
static void cs5520_set_timings(struct ata_port *ap, struct ata_device *adev, int pio)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int slave = adev->devno;
|
||||
|
||||
pio -= XFER_PIO_0;
|
||||
|
||||
/* Channel command timing */
|
||||
pci_write_config_byte(pdev, 0x62 + ap->port_no,
|
||||
(cs5520_pio_clocks[pio].recovery << 4) |
|
||||
(cs5520_pio_clocks[pio].assert));
|
||||
/* FIXME: should these use address ? */
|
||||
/* Read command timing */
|
||||
pci_write_config_byte(pdev, 0x64 + 4*ap->port_no + slave,
|
||||
(cs5520_pio_clocks[pio].recovery << 4) |
|
||||
(cs5520_pio_clocks[pio].assert));
|
||||
/* Write command timing */
|
||||
pci_write_config_byte(pdev, 0x66 + 4*ap->port_no + slave,
|
||||
(cs5520_pio_clocks[pio].recovery << 4) |
|
||||
(cs5520_pio_clocks[pio].assert));
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5520_enable_dma - turn on DMA bits
|
||||
*
|
||||
* Turn on the DMA bits for this disk. Needed because the BIOS probably
|
||||
* has not done the work for us. Belongs in the core SATA code.
|
||||
*/
|
||||
|
||||
static void cs5520_enable_dma(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
/* Set the DMA enable/disable flag */
|
||||
u8 reg = inb(ap->ioaddr.bmdma_addr + 0x02);
|
||||
reg |= 1<<(adev->devno + 5);
|
||||
outb(reg, ap->ioaddr.bmdma_addr + 0x02);
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5520_set_dmamode - program DMA timings
|
||||
* @ap: ATA port
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the DMA mode timings for the controller according to the pio
|
||||
* clocking table. Note that this device sets the DMA timings to PIO
|
||||
* mode values. This may seem bizarre but the 5520 architecture talks
|
||||
* PIO mode to the disk and DMA mode to the controller so the underlying
|
||||
* transfers are PIO timed.
|
||||
*/
|
||||
|
||||
static void cs5520_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const int dma_xlate[3] = { XFER_PIO_0, XFER_PIO_3, XFER_PIO_4 };
|
||||
cs5520_set_timings(ap, adev, dma_xlate[adev->dma_mode]);
|
||||
cs5520_enable_dma(ap, adev);
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5520_set_piomode - program PIO timings
|
||||
* @ap: ATA port
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the PIO mode timings for the controller according to the pio
|
||||
* clocking table. We know pio_mode will equal dma_mode because of the
|
||||
* CS5520 architecture. At least once we turned DMA on and wrote a
|
||||
* mode setter.
|
||||
*/
|
||||
|
||||
static void cs5520_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
cs5520_set_timings(ap, adev, adev->pio_mode);
|
||||
}
|
||||
|
||||
|
||||
static int cs5520_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void cs5520_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, cs5520_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
static struct scsi_host_template cs5520_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations cs5520_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = cs5520_set_piomode,
|
||||
.set_dmamode = cs5520_set_dmamode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = cs5520_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
u8 pcicfg;
|
||||
static struct ata_probe_ent probe[2];
|
||||
int ports = 0;
|
||||
|
||||
/* IDE port enable bits */
|
||||
pci_read_config_byte(dev, 0x60, &pcicfg);
|
||||
|
||||
/* Check if the ATA ports are enabled */
|
||||
if ((pcicfg & 3) == 0)
|
||||
return -ENODEV;
|
||||
|
||||
if ((pcicfg & 0x40) == 0) {
|
||||
printk(KERN_WARNING DRV_NAME ": DMA mode disabled. Enabling.\n");
|
||||
pci_write_config_byte(dev, 0x60, pcicfg | 0x40);
|
||||
}
|
||||
|
||||
/* Perform set up for DMA */
|
||||
if (pci_enable_device_bars(dev, 1<<2)) {
|
||||
printk(KERN_ERR DRV_NAME ": unable to configure BAR2.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
pci_set_master(dev);
|
||||
if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
|
||||
printk(KERN_ERR DRV_NAME ": unable to configure DMA mask.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
if (pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK)) {
|
||||
printk(KERN_ERR DRV_NAME ": unable to configure consistent DMA mask.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* We have to do our own plumbing as the PCI setup for this
|
||||
chipset is non-standard so we can't punt to the libata code */
|
||||
|
||||
INIT_LIST_HEAD(&probe[0].node);
|
||||
probe[0].dev = pci_dev_to_dev(dev);
|
||||
probe[0].port_ops = &cs5520_port_ops;
|
||||
probe[0].sht = &cs5520_sht;
|
||||
probe[0].pio_mask = 0x1F;
|
||||
probe[0].mwdma_mask = id->driver_data;
|
||||
probe[0].irq = 14;
|
||||
probe[0].irq_flags = 0;
|
||||
probe[0].port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST;
|
||||
probe[0].n_ports = 1;
|
||||
probe[0].port[0].cmd_addr = 0x1F0;
|
||||
probe[0].port[0].ctl_addr = 0x3F6;
|
||||
probe[0].port[0].altstatus_addr = 0x3F6;
|
||||
probe[0].port[0].bmdma_addr = pci_resource_start(dev, 2);
|
||||
|
||||
/* The secondary lurks at different addresses but is otherwise
|
||||
the same beastie */
|
||||
|
||||
probe[1] = probe[0];
|
||||
INIT_LIST_HEAD(&probe[1].node);
|
||||
probe[1].irq = 15;
|
||||
probe[1].port[0].cmd_addr = 0x170;
|
||||
probe[1].port[0].ctl_addr = 0x376;
|
||||
probe[1].port[0].altstatus_addr = 0x376;
|
||||
probe[1].port[0].bmdma_addr = pci_resource_start(dev, 2) + 8;
|
||||
|
||||
/* Let libata fill in the port details */
|
||||
ata_std_ports(&probe[0].port[0]);
|
||||
ata_std_ports(&probe[1].port[0]);
|
||||
|
||||
/* Now add the ports that are active */
|
||||
if (pcicfg & 1)
|
||||
ports += ata_device_add(&probe[0]);
|
||||
if (pcicfg & 2)
|
||||
ports += ata_device_add(&probe[1]);
|
||||
if (ports)
|
||||
return 0;
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5520_remove_one - device unload
|
||||
* @pdev: PCI device being removed
|
||||
*
|
||||
* Handle an unplug/unload event for a PCI device. Unload the
|
||||
* PCI driver but do not use the default handler as we manage
|
||||
* resources ourself and *MUST NOT* disable the device as it has
|
||||
* other functions.
|
||||
*/
|
||||
|
||||
static void __devexit cs5520_remove_one(struct pci_dev *pdev)
|
||||
{
|
||||
struct device *dev = pci_dev_to_dev(pdev);
|
||||
struct ata_host *host = dev_get_drvdata(dev);
|
||||
|
||||
ata_host_remove(host);
|
||||
dev_set_drvdata(dev, NULL);
|
||||
}
|
||||
|
||||
/* For now keep DMA off. We can set it for all but A rev CS5510 once the
|
||||
core ATA code can handle it */
|
||||
|
||||
static struct pci_device_id pata_cs5520[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5510), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5520), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver cs5520_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = pata_cs5520,
|
||||
.probe = cs5520_init_one,
|
||||
.remove = cs5520_remove_one
|
||||
};
|
||||
|
||||
|
||||
static int __init cs5520_init(void)
|
||||
{
|
||||
return pci_register_driver(&cs5520_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit cs5520_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&cs5520_pci_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Cyrix CS5510/5520");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, pata_cs5520);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(cs5520_init);
|
||||
module_exit(cs5520_exit);
|
||||
|
||||
387
drivers/ata/pata_cs5530.c
Normal file
387
drivers/ata/pata_cs5530.c
Normal file
|
|
@ -0,0 +1,387 @@
|
|||
/*
|
||||
* pata-cs5530.c - CS5530 PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* based upon cs5530.c by Mark Lord.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* Loosely based on the piix & svwks drivers.
|
||||
*
|
||||
* Documentation:
|
||||
* Available from AMD web site.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/dmi.h>
|
||||
|
||||
#define DRV_NAME "pata_cs5530"
|
||||
#define DRV_VERSION "0.6"
|
||||
|
||||
/**
|
||||
* cs5530_set_piomode - PIO setup
|
||||
* @ap: ATA interface
|
||||
* @adev: device on the interface
|
||||
*
|
||||
* Set our PIO requirements. This is fairly simple on the CS5530
|
||||
* chips.
|
||||
*/
|
||||
|
||||
static void cs5530_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const unsigned int cs5530_pio_timings[2][5] = {
|
||||
{0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010},
|
||||
{0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}
|
||||
};
|
||||
unsigned long base = ( ap->ioaddr.bmdma_addr & ~0x0F) + 0x20 + 0x10 * ap->port_no;
|
||||
u32 tuning;
|
||||
int format;
|
||||
|
||||
/* Find out which table to use */
|
||||
tuning = inl(base + 0x04);
|
||||
format = (tuning & 0x80000000UL) ? 1 : 0;
|
||||
|
||||
/* Now load the right timing register */
|
||||
if (adev->devno)
|
||||
base += 0x08;
|
||||
|
||||
outl(cs5530_pio_timings[format][adev->pio_mode - XFER_PIO_0], base);
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5530_set_dmamode - DMA timing setup
|
||||
* @ap: ATA interface
|
||||
* @adev: Device being configured
|
||||
*
|
||||
* We cannot mix MWDMA and UDMA without reloading timings each switch
|
||||
* master to slave. We track the last DMA setup in order to minimise
|
||||
* reloads.
|
||||
*/
|
||||
|
||||
static void cs5530_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned long base = ( ap->ioaddr.bmdma_addr & ~0x0F) + 0x20 + 0x10 * ap->port_no;
|
||||
u32 tuning, timing = 0;
|
||||
u8 reg;
|
||||
|
||||
/* Find out which table to use */
|
||||
tuning = inl(base + 0x04);
|
||||
|
||||
switch(adev->dma_mode) {
|
||||
case XFER_UDMA_0:
|
||||
timing = 0x00921250;break;
|
||||
case XFER_UDMA_1:
|
||||
timing = 0x00911140;break;
|
||||
case XFER_UDMA_2:
|
||||
timing = 0x00911030;break;
|
||||
case XFER_MW_DMA_0:
|
||||
timing = 0x00077771;break;
|
||||
case XFER_MW_DMA_1:
|
||||
timing = 0x00012121;break;
|
||||
case XFER_MW_DMA_2:
|
||||
timing = 0x00002020;break;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
/* Merge in the PIO format bit */
|
||||
timing |= (tuning & 0x80000000UL);
|
||||
if (adev->devno == 0) /* Master */
|
||||
outl(timing, base + 0x04);
|
||||
else {
|
||||
if (timing & 0x00100000)
|
||||
tuning |= 0x00100000; /* UDMA for both */
|
||||
else
|
||||
tuning &= ~0x00100000; /* MWDMA for both */
|
||||
outl(tuning, base + 0x04);
|
||||
outl(timing, base + 0x0C);
|
||||
}
|
||||
|
||||
/* Set the DMA capable bit in the BMDMA area */
|
||||
reg = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
|
||||
reg |= (1 << (5 + adev->devno));
|
||||
outb(reg, ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
|
||||
|
||||
/* Remember the last DMA setup we did */
|
||||
|
||||
ap->private_data = adev;
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5530_qc_issue_prot - command issue
|
||||
* @qc: command pending
|
||||
*
|
||||
* Called when the libata layer is about to issue a command. We wrap
|
||||
* this interface so that we can load the correct ATA timings if
|
||||
* neccessary. Specifically we have a problem that there is only
|
||||
* one MWDMA/UDMA bit.
|
||||
*/
|
||||
|
||||
static unsigned int cs5530_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
struct ata_device *prev = ap->private_data;
|
||||
|
||||
/* See if the DMA settings could be wrong */
|
||||
if (adev->dma_mode != 0 && adev != prev && prev != NULL) {
|
||||
/* Maybe, but do the channels match MWDMA/UDMA ? */
|
||||
if ((adev->dma_mode >= XFER_UDMA_0 && prev->dma_mode < XFER_UDMA_0) ||
|
||||
(adev->dma_mode < XFER_UDMA_0 && prev->dma_mode >= XFER_UDMA_0))
|
||||
/* Switch the mode bits */
|
||||
cs5530_set_dmamode(ap, adev);
|
||||
}
|
||||
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
static int cs5530_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void cs5530_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, cs5530_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
|
||||
static struct scsi_host_template cs5530_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations cs5530_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = cs5530_set_piomode,
|
||||
.set_dmamode = cs5530_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = cs5530_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = cs5530_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct dmi_system_id palmax_dmi_table[] = {
|
||||
{
|
||||
.ident = "Palmax PD1100",
|
||||
.matches = {
|
||||
DMI_MATCH(DMI_SYS_VENDOR, "Cyrix"),
|
||||
DMI_MATCH(DMI_PRODUCT_NAME, "Caddis"),
|
||||
},
|
||||
},
|
||||
{ }
|
||||
};
|
||||
|
||||
static int cs5530_is_palmax(void)
|
||||
{
|
||||
if (dmi_check_system(palmax_dmi_table)) {
|
||||
printk(KERN_INFO "Palmax PD1100: Disabling DMA on docking port.\n");
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5530_init_one - Initialise a CS5530
|
||||
* @dev: PCI device
|
||||
* @id: Entry in match table
|
||||
*
|
||||
* Install a driver for the newly found CS5530 companion chip. Most of
|
||||
* this is just housekeeping. We have to set the chip up correctly and
|
||||
* turn off various bits of emulation magic.
|
||||
*/
|
||||
|
||||
static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
int compiler_warning_pointless_fix;
|
||||
struct pci_dev *master_0 = NULL, *cs5530_0 = NULL;
|
||||
static struct ata_port_info info = {
|
||||
.sht = &cs5530_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x07,
|
||||
.port_ops = &cs5530_port_ops
|
||||
};
|
||||
/* The docking connector doesn't do UDMA, and it seems not MWDMA */
|
||||
static struct ata_port_info info_palmax_secondary = {
|
||||
.sht = &cs5530_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.port_ops = &cs5530_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
dev = NULL;
|
||||
while ((dev = pci_get_device(PCI_VENDOR_ID_CYRIX, PCI_ANY_ID, dev)) != NULL) {
|
||||
switch (dev->device) {
|
||||
case PCI_DEVICE_ID_CYRIX_PCI_MASTER:
|
||||
master_0 = pci_dev_get(dev);
|
||||
break;
|
||||
case PCI_DEVICE_ID_CYRIX_5530_LEGACY:
|
||||
cs5530_0 = pci_dev_get(dev);
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!master_0) {
|
||||
printk(KERN_ERR DRV_NAME ": unable to locate PCI MASTER function\n");
|
||||
goto fail_put;
|
||||
}
|
||||
if (!cs5530_0) {
|
||||
printk(KERN_ERR DRV_NAME ": unable to locate CS5530 LEGACY function\n");
|
||||
goto fail_put;
|
||||
}
|
||||
|
||||
pci_set_master(cs5530_0);
|
||||
compiler_warning_pointless_fix = pci_set_mwi(cs5530_0);
|
||||
|
||||
/*
|
||||
* Set PCI CacheLineSize to 16-bytes:
|
||||
* --> Write 0x04 into 8-bit PCI CACHELINESIZE reg of function 0 of the cs5530
|
||||
*
|
||||
* Note: This value is constant because the 5530 is only a Geode companion
|
||||
*/
|
||||
|
||||
pci_write_config_byte(cs5530_0, PCI_CACHE_LINE_SIZE, 0x04);
|
||||
|
||||
/*
|
||||
* Disable trapping of UDMA register accesses (Win98 hack):
|
||||
* --> Write 0x5006 into 16-bit reg at offset 0xd0 of function 0 of the cs5530
|
||||
*/
|
||||
|
||||
pci_write_config_word(cs5530_0, 0xd0, 0x5006);
|
||||
|
||||
/*
|
||||
* Bit-1 at 0x40 enables MemoryWriteAndInvalidate on internal X-bus:
|
||||
* The other settings are what is necessary to get the register
|
||||
* into a sane state for IDE DMA operation.
|
||||
*/
|
||||
|
||||
pci_write_config_byte(master_0, 0x40, 0x1e);
|
||||
|
||||
/*
|
||||
* Set max PCI burst size (16-bytes seems to work best):
|
||||
* 16bytes: set bit-1 at 0x41 (reg value of 0x16)
|
||||
* all others: clear bit-1 at 0x41, and do:
|
||||
* 128bytes: OR 0x00 at 0x41
|
||||
* 256bytes: OR 0x04 at 0x41
|
||||
* 512bytes: OR 0x08 at 0x41
|
||||
* 1024bytes: OR 0x0c at 0x41
|
||||
*/
|
||||
|
||||
pci_write_config_byte(master_0, 0x41, 0x14);
|
||||
|
||||
/*
|
||||
* These settings are necessary to get the chip
|
||||
* into a sane state for IDE DMA operation.
|
||||
*/
|
||||
|
||||
pci_write_config_byte(master_0, 0x42, 0x00);
|
||||
pci_write_config_byte(master_0, 0x43, 0xc1);
|
||||
|
||||
pci_dev_put(master_0);
|
||||
pci_dev_put(cs5530_0);
|
||||
|
||||
if (cs5530_is_palmax())
|
||||
port_info[1] = &info_palmax_secondary;
|
||||
|
||||
/* Now kick off ATA set up */
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
|
||||
fail_put:
|
||||
if (master_0)
|
||||
pci_dev_put(master_0);
|
||||
if (cs5530_0)
|
||||
pci_dev_put(cs5530_0);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static struct pci_device_id cs5530[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_IDE), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver cs5530_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = cs5530,
|
||||
.probe = cs5530_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init cs5530_init(void)
|
||||
{
|
||||
return pci_register_driver(&cs5530_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit cs5530_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&cs5530_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for the Cyrix/NS/AMD 5530");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, cs5530);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(cs5530_init);
|
||||
module_exit(cs5530_exit);
|
||||
291
drivers/ata/pata_cs5535.c
Normal file
291
drivers/ata/pata_cs5535.c
Normal file
|
|
@ -0,0 +1,291 @@
|
|||
/*
|
||||
* pata-cs5535.c - CS5535 PATA for new ATA layer
|
||||
* (C) 2005-2006 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* based upon cs5535.c from AMD <Jens.Altmann@amd.com> as cleaned up and
|
||||
* made readable and Linux style by Wolfgang Zuleger <wolfgang.zuleger@gmx.de
|
||||
* and Alexander Kiausch <alex.kiausch@t-online.de>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* Loosely based on the piix & svwks drivers.
|
||||
*
|
||||
* Documentation:
|
||||
* Available from AMD web site.
|
||||
* TODO
|
||||
* Review errata to see if serializing is neccessary
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <asm/msr.h>
|
||||
|
||||
#define DRV_NAME "cs5535"
|
||||
#define DRV_VERSION "0.2.10"
|
||||
|
||||
/*
|
||||
* The Geode (Aka Athlon GX now) uses an internal MSR based
|
||||
* bus system for control. Demented but there you go.
|
||||
*/
|
||||
|
||||
#define MSR_ATAC_BASE 0x51300000
|
||||
#define ATAC_GLD_MSR_CAP (MSR_ATAC_BASE+0)
|
||||
#define ATAC_GLD_MSR_CONFIG (MSR_ATAC_BASE+0x01)
|
||||
#define ATAC_GLD_MSR_SMI (MSR_ATAC_BASE+0x02)
|
||||
#define ATAC_GLD_MSR_ERROR (MSR_ATAC_BASE+0x03)
|
||||
#define ATAC_GLD_MSR_PM (MSR_ATAC_BASE+0x04)
|
||||
#define ATAC_GLD_MSR_DIAG (MSR_ATAC_BASE+0x05)
|
||||
#define ATAC_IO_BAR (MSR_ATAC_BASE+0x08)
|
||||
#define ATAC_RESET (MSR_ATAC_BASE+0x10)
|
||||
#define ATAC_CH0D0_PIO (MSR_ATAC_BASE+0x20)
|
||||
#define ATAC_CH0D0_DMA (MSR_ATAC_BASE+0x21)
|
||||
#define ATAC_CH0D1_PIO (MSR_ATAC_BASE+0x22)
|
||||
#define ATAC_CH0D1_DMA (MSR_ATAC_BASE+0x23)
|
||||
#define ATAC_PCI_ABRTERR (MSR_ATAC_BASE+0x24)
|
||||
|
||||
#define ATAC_BM0_CMD_PRIM 0x00
|
||||
#define ATAC_BM0_STS_PRIM 0x02
|
||||
#define ATAC_BM0_PRD 0x04
|
||||
|
||||
#define CS5535_CABLE_DETECT 0x48
|
||||
|
||||
#define CS5535_BAD_PIO(timings) ( (timings&~0x80000000UL)==0x00009172 )
|
||||
|
||||
/**
|
||||
* cs5535_pre_reset - detect cable type
|
||||
* @ap: Port to detect on
|
||||
*
|
||||
* Perform cable detection for ATA66 capable cable. Return a libata
|
||||
* cable type.
|
||||
*/
|
||||
|
||||
static int cs5535_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
u8 cable;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
pci_read_config_byte(pdev, CS5535_CABLE_DETECT, &cable);
|
||||
if (cable & 1)
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5535_error_handler - reset/probe
|
||||
* @ap: Port to reset
|
||||
*
|
||||
* Reset and configure a port
|
||||
*/
|
||||
|
||||
static void cs5535_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, cs5535_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5535_set_piomode - PIO setup
|
||||
* @ap: ATA interface
|
||||
* @adev: device on the interface
|
||||
*
|
||||
* Set our PIO requirements. The CS5535 is pretty clean about all this
|
||||
*/
|
||||
|
||||
static void cs5535_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const u16 pio_timings[5] = {
|
||||
0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131
|
||||
};
|
||||
static const u16 pio_cmd_timings[5] = {
|
||||
0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131
|
||||
};
|
||||
u32 reg, dummy;
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
|
||||
int mode = adev->pio_mode - XFER_PIO_0;
|
||||
int cmdmode = mode;
|
||||
|
||||
/* Command timing has to be for the lowest of the pair of devices */
|
||||
if (pair) {
|
||||
int pairmode = pair->pio_mode - XFER_PIO_0;
|
||||
cmdmode = min(mode, pairmode);
|
||||
/* Write the other drive timing register if it changed */
|
||||
if (cmdmode < pairmode)
|
||||
wrmsr(ATAC_CH0D0_PIO + 2 * pair->devno,
|
||||
pio_cmd_timings[cmdmode] << 16 | pio_timings[pairmode], 0);
|
||||
}
|
||||
/* Write the drive timing register */
|
||||
wrmsr(ATAC_CH0D0_PIO + 2 * adev->devno,
|
||||
pio_cmd_timings[cmdmode] << 16 | pio_timings[mode], 0);
|
||||
|
||||
/* Set the PIO "format 1" bit in the DMA timing register */
|
||||
rdmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, dummy);
|
||||
wrmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg | 0x80000000UL, 0);
|
||||
}
|
||||
|
||||
/**
|
||||
* cs5535_set_dmamode - DMA timing setup
|
||||
* @ap: ATA interface
|
||||
* @adev: Device being configured
|
||||
*
|
||||
*/
|
||||
|
||||
static void cs5535_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const u32 udma_timings[5] = {
|
||||
0x7F7436A1, 0x7F733481, 0x7F723261, 0x7F713161, 0x7F703061
|
||||
};
|
||||
static const u32 mwdma_timings[3] = {
|
||||
0x7F0FFFF3, 0x7F035352, 0x7F024241
|
||||
};
|
||||
u32 reg, dummy;
|
||||
int mode = adev->dma_mode;
|
||||
|
||||
rdmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, dummy);
|
||||
reg &= 0x80000000UL;
|
||||
if (mode >= XFER_UDMA_0)
|
||||
reg |= udma_timings[mode - XFER_UDMA_0];
|
||||
else
|
||||
reg |= mwdma_timings[mode - XFER_MW_DMA_0];
|
||||
wrmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, 0);
|
||||
}
|
||||
|
||||
static struct scsi_host_template cs5535_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations cs5535_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = cs5535_set_piomode,
|
||||
.set_dmamode = cs5535_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = cs5535_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* cs5535_init_one - Initialise a CS5530
|
||||
* @dev: PCI device
|
||||
* @id: Entry in match table
|
||||
*
|
||||
* Install a driver for the newly found CS5530 companion chip. Most of
|
||||
* this is just housekeeping. We have to set the chip up correctly and
|
||||
* turn off various bits of emulation magic.
|
||||
*/
|
||||
|
||||
static int cs5535_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &cs5535_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x1f,
|
||||
.port_ops = &cs5535_port_ops
|
||||
};
|
||||
struct ata_port_info *ports[1] = { &info };
|
||||
|
||||
u32 timings, dummy;
|
||||
|
||||
/* Check the BIOS set the initial timing clock. If not set the
|
||||
timings for PIO0 */
|
||||
rdmsr(ATAC_CH0D0_PIO, timings, dummy);
|
||||
if (CS5535_BAD_PIO(timings))
|
||||
wrmsr(ATAC_CH0D0_PIO, 0xF7F4F7F4UL, 0);
|
||||
rdmsr(ATAC_CH0D1_PIO, timings, dummy);
|
||||
if (CS5535_BAD_PIO(timings))
|
||||
wrmsr(ATAC_CH0D1_PIO, 0xF7F4F7F4UL, 0);
|
||||
return ata_pci_init_one(dev, ports, 1);
|
||||
}
|
||||
|
||||
static struct pci_device_id cs5535[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_NS, 0x002D), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver cs5535_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = cs5535,
|
||||
.probe = cs5535_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init cs5535_init(void)
|
||||
{
|
||||
return pci_register_driver(&cs5535_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit cs5535_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&cs5535_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox, Jens Altmann, Wolfgan Zuleger, Alexander Kiausch");
|
||||
MODULE_DESCRIPTION("low-level driver for the NS/AMD 5530");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, cs5535);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(cs5535_init);
|
||||
module_exit(cs5535_exit);
|
||||
227
drivers/ata/pata_cypress.c
Normal file
227
drivers/ata/pata_cypress.c
Normal file
|
|
@ -0,0 +1,227 @@
|
|||
/*
|
||||
* pata_cypress.c - Cypress PATA for new ATA layer
|
||||
* (C) 2006 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Based heavily on
|
||||
* linux/drivers/ide/pci/cy82c693.c Version 0.40 Sep. 10, 2002
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_cypress"
|
||||
#define DRV_VERSION "0.1.2"
|
||||
|
||||
/* here are the offset definitions for the registers */
|
||||
|
||||
enum {
|
||||
CY82_IDE_CMDREG = 0x04,
|
||||
CY82_IDE_ADDRSETUP = 0x48,
|
||||
CY82_IDE_MASTER_IOR = 0x4C,
|
||||
CY82_IDE_MASTER_IOW = 0x4D,
|
||||
CY82_IDE_SLAVE_IOR = 0x4E,
|
||||
CY82_IDE_SLAVE_IOW = 0x4F,
|
||||
CY82_IDE_MASTER_8BIT = 0x50,
|
||||
CY82_IDE_SLAVE_8BIT = 0x51,
|
||||
|
||||
CY82_INDEX_PORT = 0x22,
|
||||
CY82_DATA_PORT = 0x23,
|
||||
|
||||
CY82_INDEX_CTRLREG1 = 0x01,
|
||||
CY82_INDEX_CHANNEL0 = 0x30,
|
||||
CY82_INDEX_CHANNEL1 = 0x31,
|
||||
CY82_INDEX_TIMEOUT = 0x32
|
||||
};
|
||||
|
||||
static int cy82c693_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void cy82c693_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, cy82c693_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* cy82c693_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the PIO mode setup.
|
||||
*/
|
||||
|
||||
static void cy82c693_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct ata_timing t;
|
||||
const unsigned long T = 1000000 / 33;
|
||||
short time_16, time_8;
|
||||
u32 addr;
|
||||
|
||||
if (ata_timing_compute(adev, adev->pio_mode, &t, T, 1) < 0) {
|
||||
printk(KERN_ERR DRV_NAME ": mome computation failed.\n");
|
||||
return;
|
||||
}
|
||||
|
||||
time_16 = FIT(t.recover, 0, 15) | (FIT(t.active, 0, 15) << 4);
|
||||
time_8 = FIT(t.act8b, 0, 15) | (FIT(t.rec8b, 0, 15) << 4);
|
||||
|
||||
if (adev->devno == 0) {
|
||||
pci_read_config_dword(pdev, CY82_IDE_ADDRSETUP, &addr);
|
||||
|
||||
addr &= ~0x0F; /* Mask bits */
|
||||
addr |= FIT(t.setup, 0, 15);
|
||||
|
||||
pci_write_config_dword(pdev, CY82_IDE_ADDRSETUP, addr);
|
||||
pci_write_config_byte(pdev, CY82_IDE_MASTER_IOR, time_16);
|
||||
pci_write_config_byte(pdev, CY82_IDE_MASTER_IOW, time_16);
|
||||
pci_write_config_byte(pdev, CY82_IDE_MASTER_8BIT, time_8);
|
||||
} else {
|
||||
pci_read_config_dword(pdev, CY82_IDE_ADDRSETUP, &addr);
|
||||
|
||||
addr &= ~0xF0; /* Mask bits */
|
||||
addr |= (FIT(t.setup, 0, 15) << 4);
|
||||
|
||||
pci_write_config_dword(pdev, CY82_IDE_ADDRSETUP, addr);
|
||||
pci_write_config_byte(pdev, CY82_IDE_SLAVE_IOR, time_16);
|
||||
pci_write_config_byte(pdev, CY82_IDE_SLAVE_IOW, time_16);
|
||||
pci_write_config_byte(pdev, CY82_IDE_SLAVE_8BIT, time_8);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* cy82c693_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the DMA mode setup.
|
||||
*/
|
||||
|
||||
static void cy82c693_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
int reg = CY82_INDEX_CHANNEL0 + ap->port_no;
|
||||
|
||||
/* Be afraid, be very afraid. Magic registers in low I/O space */
|
||||
outb(reg, 0x22);
|
||||
outb(adev->dma_mode - XFER_MW_DMA_0, 0x23);
|
||||
|
||||
/* 0x50 gives the best behaviour on the Alpha's using this chip */
|
||||
outb(CY82_INDEX_TIMEOUT, 0x22);
|
||||
outb(0x50, 0x23);
|
||||
}
|
||||
|
||||
static struct scsi_host_template cy82c693_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations cy82c693_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = cy82c693_set_piomode,
|
||||
.set_dmamode = cy82c693_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = cy82c693_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int cy82c693_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &cy82c693_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &cy82c693_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[1] = { &info };
|
||||
|
||||
/* Devfn 1 is the ATA primary. The secondary is magic and on devfn2. For the
|
||||
moment we don't handle the secondary. FIXME */
|
||||
|
||||
if (PCI_FUNC(pdev->devfn) != 1)
|
||||
return -ENODEV;
|
||||
|
||||
return ata_pci_init_one(pdev, port_info, 1);
|
||||
}
|
||||
|
||||
static struct pci_device_id cy82c693[] = {
|
||||
{ PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver cy82c693_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = cy82c693,
|
||||
.probe = cy82c693_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init cy82c693_init(void)
|
||||
{
|
||||
return pci_register_driver(&cy82c693_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit cy82c693_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&cy82c693_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for the CY82C693 PATA controller");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, cy82c693);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(cy82c693_init);
|
||||
module_exit(cy82c693_exit);
|
||||
342
drivers/ata/pata_efar.c
Normal file
342
drivers/ata/pata_efar.c
Normal file
|
|
@ -0,0 +1,342 @@
|
|||
/*
|
||||
* pata_efar.c - EFAR PIIX clone controller driver
|
||||
*
|
||||
* (C) 2005 Red Hat <alan@redhat.com>
|
||||
*
|
||||
* Some parts based on ata_piix.c by Jeff Garzik and others.
|
||||
*
|
||||
* The EFAR is a PIIX4 clone with UDMA66 support. Unlike the later
|
||||
* Intel ICH controllers the EFAR widened the UDMA mode register bits
|
||||
* and doesn't require the funky clock selection.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/device.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/ata.h>
|
||||
|
||||
#define DRV_NAME "pata_efar"
|
||||
#define DRV_VERSION "0.4.1"
|
||||
|
||||
/**
|
||||
* efar_pre_reset - check for 40/80 pin
|
||||
* @ap: Port
|
||||
*
|
||||
* Perform cable detection for the EFAR ATA interface. This is
|
||||
* different to the PIIX arrangement
|
||||
*/
|
||||
|
||||
static int efar_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
static const struct pci_bits efar_enable_bits[] = {
|
||||
{ 0x41U, 1U, 0x80UL, 0x80UL }, /* port 0 */
|
||||
{ 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 tmp;
|
||||
|
||||
if (!pci_test_config_bits(pdev, &efar_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
pci_read_config_byte(pdev, 0x47, &tmp);
|
||||
if (tmp & (2 >> ap->port_no))
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* efar_probe_reset - Probe specified port on PATA host controller
|
||||
* @ap: Port to probe
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void efar_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, efar_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* efar_set_piomode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: um
|
||||
*
|
||||
* Set PIO mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void efar_set_piomode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned int pio = adev->pio_mode - XFER_PIO_0;
|
||||
struct pci_dev *dev = to_pci_dev(ap->host->dev);
|
||||
unsigned int idetm_port= ap->port_no ? 0x42 : 0x40;
|
||||
u16 idetm_data;
|
||||
int control = 0;
|
||||
|
||||
/*
|
||||
* See Intel Document 298600-004 for the timing programing rules
|
||||
* for PIIX/ICH. The EFAR is a clone so very similar
|
||||
*/
|
||||
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 },
|
||||
{ 0, 0 },
|
||||
{ 1, 0 },
|
||||
{ 2, 1 },
|
||||
{ 2, 3 }, };
|
||||
|
||||
if (pio > 2)
|
||||
control |= 1; /* TIME1 enable */
|
||||
if (ata_pio_need_iordy(adev)) /* PIO 3/4 require IORDY */
|
||||
control |= 2; /* IE enable */
|
||||
/* Intel specifies that the PPE functionality is for disk only */
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
control |= 4; /* PPE enable */
|
||||
|
||||
pci_read_config_word(dev, idetm_port, &idetm_data);
|
||||
|
||||
/* Enable PPE, IE and TIME as appropriate */
|
||||
|
||||
if (adev->devno == 0) {
|
||||
idetm_data &= 0xCCF0;
|
||||
idetm_data |= control;
|
||||
idetm_data |= (timings[pio][0] << 12) |
|
||||
(timings[pio][1] << 8);
|
||||
} else {
|
||||
int shift = 4 * ap->port_no;
|
||||
u8 slave_data;
|
||||
|
||||
idetm_data &= 0xCC0F;
|
||||
idetm_data |= (control << 4);
|
||||
|
||||
/* Slave timing in seperate register */
|
||||
pci_read_config_byte(dev, 0x44, &slave_data);
|
||||
slave_data &= 0x0F << shift;
|
||||
slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << shift;
|
||||
pci_write_config_byte(dev, 0x44, slave_data);
|
||||
}
|
||||
|
||||
idetm_data |= 0x4000; /* Ensure SITRE is enabled */
|
||||
pci_write_config_word(dev, idetm_port, idetm_data);
|
||||
}
|
||||
|
||||
/**
|
||||
* efar_set_dmamode - Initialize host controller PATA DMA timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: Device to program
|
||||
*
|
||||
* Set UDMA/MWDMA mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void efar_set_dmamode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *dev = to_pci_dev(ap->host->dev);
|
||||
u8 master_port = ap->port_no ? 0x42 : 0x40;
|
||||
u16 master_data;
|
||||
u8 speed = adev->dma_mode;
|
||||
int devid = adev->devno + 2 * ap->port_no;
|
||||
u8 udma_enable;
|
||||
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 },
|
||||
{ 0, 0 },
|
||||
{ 1, 0 },
|
||||
{ 2, 1 },
|
||||
{ 2, 3 }, };
|
||||
|
||||
pci_read_config_word(dev, master_port, &master_data);
|
||||
pci_read_config_byte(dev, 0x48, &udma_enable);
|
||||
|
||||
if (speed >= XFER_UDMA_0) {
|
||||
unsigned int udma = adev->dma_mode - XFER_UDMA_0;
|
||||
u16 udma_timing;
|
||||
|
||||
udma_enable |= (1 << devid);
|
||||
|
||||
/* Load the UDMA mode number */
|
||||
pci_read_config_word(dev, 0x4A, &udma_timing);
|
||||
udma_timing &= ~(7 << (4 * devid));
|
||||
udma_timing |= udma << (4 * devid);
|
||||
pci_write_config_word(dev, 0x4A, udma_timing);
|
||||
} else {
|
||||
/*
|
||||
* MWDMA is driven by the PIO timings. We must also enable
|
||||
* IORDY unconditionally along with TIME1. PPE has already
|
||||
* been set when the PIO timing was set.
|
||||
*/
|
||||
unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
|
||||
unsigned int control;
|
||||
u8 slave_data;
|
||||
const unsigned int needed_pio[3] = {
|
||||
XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
|
||||
};
|
||||
int pio = needed_pio[mwdma] - XFER_PIO_0;
|
||||
|
||||
control = 3; /* IORDY|TIME1 */
|
||||
|
||||
/* If the drive MWDMA is faster than it can do PIO then
|
||||
we must force PIO into PIO0 */
|
||||
|
||||
if (adev->pio_mode < needed_pio[mwdma])
|
||||
/* Enable DMA timing only */
|
||||
control |= 8; /* PIO cycles in PIO0 */
|
||||
|
||||
if (adev->devno) { /* Slave */
|
||||
master_data &= 0xFF4F; /* Mask out IORDY|TIME1|DMAONLY */
|
||||
master_data |= control << 4;
|
||||
pci_read_config_byte(dev, 0x44, &slave_data);
|
||||
slave_data &= (0x0F + 0xE1 * ap->port_no);
|
||||
/* Load the matching timing */
|
||||
slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0);
|
||||
pci_write_config_byte(dev, 0x44, slave_data);
|
||||
} else { /* Master */
|
||||
master_data &= 0xCCF4; /* Mask out IORDY|TIME1|DMAONLY
|
||||
and master timing bits */
|
||||
master_data |= control;
|
||||
master_data |=
|
||||
(timings[pio][0] << 12) |
|
||||
(timings[pio][1] << 8);
|
||||
}
|
||||
udma_enable &= ~(1 << devid);
|
||||
pci_write_config_word(dev, master_port, master_data);
|
||||
}
|
||||
pci_write_config_byte(dev, 0x48, udma_enable);
|
||||
}
|
||||
|
||||
static struct scsi_host_template efar_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations efar_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = efar_set_piomode,
|
||||
.set_dmamode = efar_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = efar_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* efar_init_one - Register EFAR ATA PCI device with kernel services
|
||||
* @pdev: PCI device to register
|
||||
* @ent: Entry in efar_pci_tbl matching with @pdev
|
||||
*
|
||||
* Called from kernel PCI layer.
|
||||
*
|
||||
* LOCKING:
|
||||
* Inherited from PCI layer (may sleep).
|
||||
*
|
||||
* RETURNS:
|
||||
* Zero on success, or -ERRNO value.
|
||||
*/
|
||||
|
||||
static int efar_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
{
|
||||
static int printed_version;
|
||||
static struct ata_port_info info = {
|
||||
.sht = &efar_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma1-2 */
|
||||
.udma_mask = 0x0f, /* UDMA 66 */
|
||||
.port_ops = &efar_ops,
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev,
|
||||
"version " DRV_VERSION "\n");
|
||||
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id efar_pci_tbl[] = {
|
||||
{ 0x1055, 0x9130, PCI_ANY_ID, PCI_ANY_ID, },
|
||||
{ } /* terminate list */
|
||||
};
|
||||
|
||||
static struct pci_driver efar_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = efar_pci_tbl,
|
||||
.probe = efar_init_one,
|
||||
.remove = ata_pci_remove_one,
|
||||
};
|
||||
|
||||
static int __init efar_init(void)
|
||||
{
|
||||
return pci_register_driver(&efar_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit efar_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&efar_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
module_init(efar_init);
|
||||
module_exit(efar_exit);
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("SCSI low-level driver for EFAR PIIX clones");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, efar_pci_tbl);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
478
drivers/ata/pata_hpt366.c
Normal file
478
drivers/ata/pata_hpt366.c
Normal file
|
|
@ -0,0 +1,478 @@
|
|||
/*
|
||||
* Libata driver for the highpoint 366 and 368 UDMA66 ATA controllers.
|
||||
*
|
||||
* This driver is heavily based upon:
|
||||
*
|
||||
* linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
|
||||
*
|
||||
* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
|
||||
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
|
||||
* Portions Copyright (C) 2003 Red Hat Inc
|
||||
*
|
||||
*
|
||||
* TODO
|
||||
* Maybe PLL mode
|
||||
* Look into engine reset on timeout errors. Should not be
|
||||
* required.
|
||||
*/
|
||||
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_hpt366"
|
||||
#define DRV_VERSION "0.5"
|
||||
|
||||
struct hpt_clock {
|
||||
u8 xfer_speed;
|
||||
u32 timing;
|
||||
};
|
||||
|
||||
/* key for bus clock timings
|
||||
* bit
|
||||
* 0:3 data_high_time. inactive time of DIOW_/DIOR_ for PIO and MW
|
||||
* DMA. cycles = value + 1
|
||||
* 4:8 data_low_time. active time of DIOW_/DIOR_ for PIO and MW
|
||||
* DMA. cycles = value + 1
|
||||
* 9:12 cmd_high_time. inactive time of DIOW_/DIOR_ during task file
|
||||
* register access.
|
||||
* 13:17 cmd_low_time. active time of DIOW_/DIOR_ during task file
|
||||
* register access.
|
||||
* 18:21 udma_cycle_time. clock freq and clock cycles for UDMA xfer.
|
||||
* during task file register access.
|
||||
* 22:24 pre_high_time. time to initialize 1st cycle for PIO and MW DMA
|
||||
* xfer.
|
||||
* 25:27 cmd_pre_high_time. time to initialize 1st PIO cycle for task
|
||||
* register access.
|
||||
* 28 UDMA enable
|
||||
* 29 DMA enable
|
||||
* 30 PIO_MST enable. if set, the chip is in bus master mode during
|
||||
* PIO.
|
||||
* 31 FIFO enable.
|
||||
*/
|
||||
|
||||
static const struct hpt_clock hpt366_40[] = {
|
||||
{ XFER_UDMA_4, 0x900fd943 },
|
||||
{ XFER_UDMA_3, 0x900ad943 },
|
||||
{ XFER_UDMA_2, 0x900bd943 },
|
||||
{ XFER_UDMA_1, 0x9008d943 },
|
||||
{ XFER_UDMA_0, 0x9008d943 },
|
||||
|
||||
{ XFER_MW_DMA_2, 0xa008d943 },
|
||||
{ XFER_MW_DMA_1, 0xa010d955 },
|
||||
{ XFER_MW_DMA_0, 0xa010d9fc },
|
||||
|
||||
{ XFER_PIO_4, 0xc008d963 },
|
||||
{ XFER_PIO_3, 0xc010d974 },
|
||||
{ XFER_PIO_2, 0xc010d997 },
|
||||
{ XFER_PIO_1, 0xc010d9c7 },
|
||||
{ XFER_PIO_0, 0xc018d9d9 },
|
||||
{ 0, 0x0120d9d9 }
|
||||
};
|
||||
|
||||
static const struct hpt_clock hpt366_33[] = {
|
||||
{ XFER_UDMA_4, 0x90c9a731 },
|
||||
{ XFER_UDMA_3, 0x90cfa731 },
|
||||
{ XFER_UDMA_2, 0x90caa731 },
|
||||
{ XFER_UDMA_1, 0x90cba731 },
|
||||
{ XFER_UDMA_0, 0x90c8a731 },
|
||||
|
||||
{ XFER_MW_DMA_2, 0xa0c8a731 },
|
||||
{ XFER_MW_DMA_1, 0xa0c8a732 }, /* 0xa0c8a733 */
|
||||
{ XFER_MW_DMA_0, 0xa0c8a797 },
|
||||
|
||||
{ XFER_PIO_4, 0xc0c8a731 },
|
||||
{ XFER_PIO_3, 0xc0c8a742 },
|
||||
{ XFER_PIO_2, 0xc0d0a753 },
|
||||
{ XFER_PIO_1, 0xc0d0a7a3 }, /* 0xc0d0a793 */
|
||||
{ XFER_PIO_0, 0xc0d0a7aa }, /* 0xc0d0a7a7 */
|
||||
{ 0, 0x0120a7a7 }
|
||||
};
|
||||
|
||||
static const struct hpt_clock hpt366_25[] = {
|
||||
{ XFER_UDMA_4, 0x90c98521 },
|
||||
{ XFER_UDMA_3, 0x90cf8521 },
|
||||
{ XFER_UDMA_2, 0x90cf8521 },
|
||||
{ XFER_UDMA_1, 0x90cb8521 },
|
||||
{ XFER_UDMA_0, 0x90cb8521 },
|
||||
|
||||
{ XFER_MW_DMA_2, 0xa0ca8521 },
|
||||
{ XFER_MW_DMA_1, 0xa0ca8532 },
|
||||
{ XFER_MW_DMA_0, 0xa0ca8575 },
|
||||
|
||||
{ XFER_PIO_4, 0xc0ca8521 },
|
||||
{ XFER_PIO_3, 0xc0ca8532 },
|
||||
{ XFER_PIO_2, 0xc0ca8542 },
|
||||
{ XFER_PIO_1, 0xc0d08572 },
|
||||
{ XFER_PIO_0, 0xc0d08585 },
|
||||
{ 0, 0x01208585 }
|
||||
};
|
||||
|
||||
static const char *bad_ata33[] = {
|
||||
"Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2",
|
||||
"Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2",
|
||||
"Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4",
|
||||
"Maxtor 90510D4",
|
||||
"Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2",
|
||||
"Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4",
|
||||
"Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2",
|
||||
NULL
|
||||
};
|
||||
|
||||
static const char *bad_ata66_4[] = {
|
||||
"IBM-DTLA-307075",
|
||||
"IBM-DTLA-307060",
|
||||
"IBM-DTLA-307045",
|
||||
"IBM-DTLA-307030",
|
||||
"IBM-DTLA-307020",
|
||||
"IBM-DTLA-307015",
|
||||
"IBM-DTLA-305040",
|
||||
"IBM-DTLA-305030",
|
||||
"IBM-DTLA-305020",
|
||||
"IC35L010AVER07-0",
|
||||
"IC35L020AVER07-0",
|
||||
"IC35L030AVER07-0",
|
||||
"IC35L040AVER07-0",
|
||||
"IC35L060AVER07-0",
|
||||
"WDC AC310200R",
|
||||
NULL
|
||||
};
|
||||
|
||||
static const char *bad_ata66_3[] = {
|
||||
"WDC AC310200R",
|
||||
NULL
|
||||
};
|
||||
|
||||
static int hpt_dma_blacklisted(const struct ata_device *dev, char *modestr, const char *list[])
|
||||
{
|
||||
unsigned char model_num[40];
|
||||
char *s;
|
||||
unsigned int len;
|
||||
int i = 0;
|
||||
|
||||
ata_id_string(dev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num));
|
||||
s = &model_num[0];
|
||||
len = strnlen(s, sizeof(model_num));
|
||||
|
||||
/* ATAPI specifies that empty space is blank-filled; remove blanks */
|
||||
while ((len > 0) && (s[len - 1] == ' ')) {
|
||||
len--;
|
||||
s[len] = 0;
|
||||
}
|
||||
|
||||
while(list[i] != NULL) {
|
||||
if (!strncmp(list[i], s, len)) {
|
||||
printk(KERN_WARNING DRV_NAME ": %s is not supported for %s.\n",
|
||||
modestr, list[i]);
|
||||
return 1;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt366_filter - mode selection filter
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Block UDMA on devices that cause trouble with this controller.
|
||||
*/
|
||||
|
||||
static unsigned long hpt366_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
|
||||
{
|
||||
if (adev->class == ATA_DEV_ATA) {
|
||||
if (hpt_dma_blacklisted(adev, "UDMA", bad_ata33))
|
||||
mask &= ~ATA_MASK_UDMA;
|
||||
if (hpt_dma_blacklisted(adev, "UDMA3", bad_ata66_3))
|
||||
mask &= ~(0x07 << ATA_SHIFT_UDMA);
|
||||
if (hpt_dma_blacklisted(adev, "UDMA4", bad_ata66_4))
|
||||
mask &= ~(0x0F << ATA_SHIFT_UDMA);
|
||||
}
|
||||
return ata_pci_default_filter(ap, adev, mask);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt36x_find_mode - reset the hpt36x bus
|
||||
* @ap: ATA port
|
||||
* @speed: transfer mode
|
||||
*
|
||||
* Return the 32bit register programming information for this channel
|
||||
* that matches the speed provided.
|
||||
*/
|
||||
|
||||
static u32 hpt36x_find_mode(struct ata_port *ap, int speed)
|
||||
{
|
||||
struct hpt_clock *clocks = ap->host->private_data;
|
||||
|
||||
while(clocks->xfer_speed) {
|
||||
if (clocks->xfer_speed == speed)
|
||||
return clocks->timing;
|
||||
clocks++;
|
||||
}
|
||||
BUG();
|
||||
return 0xffffffffU; /* silence compiler warning */
|
||||
}
|
||||
|
||||
static int hpt36x_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
u8 ata66;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
pci_read_config_byte(pdev, 0x5A, &ata66);
|
||||
if (ata66 & (1 << ap->port_no))
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt36x_error_handler - reset the hpt36x bus
|
||||
* @ap: ATA port to reset
|
||||
*
|
||||
* Perform the reset handling for the 366/368
|
||||
*/
|
||||
|
||||
static void hpt36x_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, hpt36x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt366_set_piomode - PIO setup
|
||||
* @ap: ATA interface
|
||||
* @adev: device on the interface
|
||||
*
|
||||
* Perform PIO mode setup.
|
||||
*/
|
||||
|
||||
static void hpt366_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 addr1, addr2;
|
||||
u32 reg;
|
||||
u32 mode;
|
||||
u8 fast;
|
||||
|
||||
addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
|
||||
addr2 = 0x51 + 4 * ap->port_no;
|
||||
|
||||
/* Fast interrupt prediction disable, hold off interrupt disable */
|
||||
pci_read_config_byte(pdev, addr2, &fast);
|
||||
if (fast & 0x80) {
|
||||
fast &= ~0x80;
|
||||
pci_write_config_byte(pdev, addr2, fast);
|
||||
}
|
||||
|
||||
pci_read_config_dword(pdev, addr1, ®);
|
||||
mode = hpt36x_find_mode(ap, adev->pio_mode);
|
||||
mode &= ~0x8000000; /* No FIFO in PIO */
|
||||
mode &= ~0x30070000; /* Leave config bits alone */
|
||||
reg &= 0x30070000; /* Strip timing bits */
|
||||
pci_write_config_dword(pdev, addr1, reg | mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt366_set_dmamode - DMA timing setup
|
||||
* @ap: ATA interface
|
||||
* @adev: Device being configured
|
||||
*
|
||||
* Set up the channel for MWDMA or UDMA modes. Much the same as with
|
||||
* PIO, load the mode number and then set MWDMA or UDMA flag.
|
||||
*/
|
||||
|
||||
static void hpt366_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 addr1, addr2;
|
||||
u32 reg;
|
||||
u32 mode;
|
||||
u8 fast;
|
||||
|
||||
addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
|
||||
addr2 = 0x51 + 4 * ap->port_no;
|
||||
|
||||
/* Fast interrupt prediction disable, hold off interrupt disable */
|
||||
pci_read_config_byte(pdev, addr2, &fast);
|
||||
if (fast & 0x80) {
|
||||
fast &= ~0x80;
|
||||
pci_write_config_byte(pdev, addr2, fast);
|
||||
}
|
||||
|
||||
pci_read_config_dword(pdev, addr1, ®);
|
||||
mode = hpt36x_find_mode(ap, adev->dma_mode);
|
||||
mode |= 0x8000000; /* FIFO in MWDMA or UDMA */
|
||||
mode &= ~0xC0000000; /* Leave config bits alone */
|
||||
reg &= 0xC0000000; /* Strip timing bits */
|
||||
pci_write_config_dword(pdev, addr1, reg | mode);
|
||||
}
|
||||
|
||||
static struct scsi_host_template hpt36x_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
/*
|
||||
* Configuration for HPT366/68
|
||||
*/
|
||||
|
||||
static struct ata_port_operations hpt366_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = hpt366_set_piomode,
|
||||
.set_dmamode = hpt366_set_dmamode,
|
||||
.mode_filter = hpt366_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = hpt36x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* hpt36x_init_one - Initialise an HPT366/368
|
||||
* @dev: PCI device
|
||||
* @id: Entry in match table
|
||||
*
|
||||
* Initialise an HPT36x device. There are some interesting complications
|
||||
* here. Firstly the chip may report 366 and be one of several variants.
|
||||
* Secondly all the timings depend on the clock for the chip which we must
|
||||
* detect and look up
|
||||
*
|
||||
* This is the known chip mappings. It may be missing a couple of later
|
||||
* releases.
|
||||
*
|
||||
* Chip version PCI Rev Notes
|
||||
* HPT366 4 (HPT366) 0 UDMA66
|
||||
* HPT366 4 (HPT366) 1 UDMA66
|
||||
* HPT368 4 (HPT366) 2 UDMA66
|
||||
* HPT37x/30x 4 (HPT366) 3+ Other driver
|
||||
*
|
||||
*/
|
||||
|
||||
static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info_hpt366 = {
|
||||
.sht = &hpt36x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x1f,
|
||||
.port_ops = &hpt366_port_ops
|
||||
};
|
||||
struct ata_port_info *port_info[2] = {&info_hpt366, &info_hpt366};
|
||||
|
||||
u32 class_rev;
|
||||
u32 reg1;
|
||||
u8 drive_fast;
|
||||
|
||||
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
|
||||
class_rev &= 0xFF;
|
||||
|
||||
/* May be a later chip in disguise. Check */
|
||||
/* Newer chips are not in the HPT36x driver. Ignore them */
|
||||
if (class_rev > 2)
|
||||
return -ENODEV;
|
||||
|
||||
pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
|
||||
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
|
||||
pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
|
||||
pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
|
||||
|
||||
pci_read_config_byte(dev, 0x51, &drive_fast);
|
||||
if (drive_fast & 0x80)
|
||||
pci_write_config_byte(dev, 0x51, drive_fast & ~0x80);
|
||||
|
||||
pci_read_config_dword(dev, 0x40, ®1);
|
||||
|
||||
/* PCI clocking determines the ATA timing values to use */
|
||||
/* info_hpt366 is safe against re-entry so we can scribble on it */
|
||||
switch(reg1 & 0x700) {
|
||||
case 5:
|
||||
info_hpt366.private_data = &hpt366_40;
|
||||
break;
|
||||
case 9:
|
||||
info_hpt366.private_data = &hpt366_25;
|
||||
break;
|
||||
default:
|
||||
info_hpt366.private_data = &hpt366_33;
|
||||
break;
|
||||
}
|
||||
/* Now kick off ATA set up */
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id hpt36x[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT366), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver hpt36x_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = hpt36x,
|
||||
.probe = hpt36x_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init hpt36x_init(void)
|
||||
{
|
||||
return pci_register_driver(&hpt36x_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit hpt36x_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&hpt36x_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for the Highpoint HPT366/368");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, hpt36x);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(hpt36x_init);
|
||||
module_exit(hpt36x_exit);
|
||||
1257
drivers/ata/pata_hpt37x.c
Normal file
1257
drivers/ata/pata_hpt37x.c
Normal file
File diff suppressed because it is too large
Load diff
597
drivers/ata/pata_hpt3x2n.c
Normal file
597
drivers/ata/pata_hpt3x2n.c
Normal file
|
|
@ -0,0 +1,597 @@
|
|||
/*
|
||||
* Libata driver for the highpoint 372N and 302N UDMA66 ATA controllers.
|
||||
*
|
||||
* This driver is heavily based upon:
|
||||
*
|
||||
* linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
|
||||
*
|
||||
* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
|
||||
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
|
||||
* Portions Copyright (C) 2003 Red Hat Inc
|
||||
*
|
||||
*
|
||||
* TODO
|
||||
* 371N
|
||||
* Work out best PLL policy
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_hpt3x2n"
|
||||
#define DRV_VERSION "0.3"
|
||||
|
||||
enum {
|
||||
HPT_PCI_FAST = (1 << 31),
|
||||
PCI66 = (1 << 1),
|
||||
USE_DPLL = (1 << 0)
|
||||
};
|
||||
|
||||
struct hpt_clock {
|
||||
u8 xfer_speed;
|
||||
u32 timing;
|
||||
};
|
||||
|
||||
struct hpt_chip {
|
||||
const char *name;
|
||||
struct hpt_clock *clocks[3];
|
||||
};
|
||||
|
||||
/* key for bus clock timings
|
||||
* bit
|
||||
* 0:3 data_high_time. inactive time of DIOW_/DIOR_ for PIO and MW
|
||||
* DMA. cycles = value + 1
|
||||
* 4:8 data_low_time. active time of DIOW_/DIOR_ for PIO and MW
|
||||
* DMA. cycles = value + 1
|
||||
* 9:12 cmd_high_time. inactive time of DIOW_/DIOR_ during task file
|
||||
* register access.
|
||||
* 13:17 cmd_low_time. active time of DIOW_/DIOR_ during task file
|
||||
* register access.
|
||||
* 18:21 udma_cycle_time. clock freq and clock cycles for UDMA xfer.
|
||||
* during task file register access.
|
||||
* 22:24 pre_high_time. time to initialize 1st cycle for PIO and MW DMA
|
||||
* xfer.
|
||||
* 25:27 cmd_pre_high_time. time to initialize 1st PIO cycle for task
|
||||
* register access.
|
||||
* 28 UDMA enable
|
||||
* 29 DMA enable
|
||||
* 30 PIO_MST enable. if set, the chip is in bus master mode during
|
||||
* PIO.
|
||||
* 31 FIFO enable.
|
||||
*/
|
||||
|
||||
/* 66MHz DPLL clocks */
|
||||
|
||||
static struct hpt_clock hpt3x2n_clocks[] = {
|
||||
{ XFER_UDMA_7, 0x1c869c62 },
|
||||
{ XFER_UDMA_6, 0x1c869c62 },
|
||||
{ XFER_UDMA_5, 0x1c8a9c62 },
|
||||
{ XFER_UDMA_4, 0x1c8a9c62 },
|
||||
{ XFER_UDMA_3, 0x1c8e9c62 },
|
||||
{ XFER_UDMA_2, 0x1c929c62 },
|
||||
{ XFER_UDMA_1, 0x1c9a9c62 },
|
||||
{ XFER_UDMA_0, 0x1c829c62 },
|
||||
|
||||
{ XFER_MW_DMA_2, 0x2c829c62 },
|
||||
{ XFER_MW_DMA_1, 0x2c829c66 },
|
||||
{ XFER_MW_DMA_0, 0x2c829d2c },
|
||||
|
||||
{ XFER_PIO_4, 0x0c829c62 },
|
||||
{ XFER_PIO_3, 0x0c829c84 },
|
||||
{ XFER_PIO_2, 0x0c829ca6 },
|
||||
{ XFER_PIO_1, 0x0d029d26 },
|
||||
{ XFER_PIO_0, 0x0d029d5e },
|
||||
{ 0, 0x0d029d5e }
|
||||
};
|
||||
|
||||
/**
|
||||
* hpt3x2n_find_mode - reset the hpt3x2n bus
|
||||
* @ap: ATA port
|
||||
* @speed: transfer mode
|
||||
*
|
||||
* Return the 32bit register programming information for this channel
|
||||
* that matches the speed provided. For the moment the clocks table
|
||||
* is hard coded but easy to change. This will be needed if we use
|
||||
* different DPLLs
|
||||
*/
|
||||
|
||||
static u32 hpt3x2n_find_mode(struct ata_port *ap, int speed)
|
||||
{
|
||||
struct hpt_clock *clocks = hpt3x2n_clocks;
|
||||
|
||||
while(clocks->xfer_speed) {
|
||||
if (clocks->xfer_speed == speed)
|
||||
return clocks->timing;
|
||||
clocks++;
|
||||
}
|
||||
BUG();
|
||||
return 0xffffffffU; /* silence compiler warning */
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x2n_pre_reset - reset the hpt3x2n bus
|
||||
* @ap: ATA port to reset
|
||||
*
|
||||
* Perform the initial reset handling for the 3x2n series controllers.
|
||||
* Reset the hardware and state machine, obtain the cable type.
|
||||
*/
|
||||
|
||||
static int hpt3xn_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
u8 scr2, ata66;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
pci_read_config_byte(pdev, 0x5B, &scr2);
|
||||
pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01);
|
||||
/* Cable register now active */
|
||||
pci_read_config_byte(pdev, 0x5A, &ata66);
|
||||
/* Restore state */
|
||||
pci_write_config_byte(pdev, 0x5B, scr2);
|
||||
|
||||
if (ata66 & (1 << ap->port_no))
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
|
||||
/* Reset the state machine */
|
||||
pci_write_config_byte(pdev, 0x50, 0x37);
|
||||
pci_write_config_byte(pdev, 0x54, 0x37);
|
||||
udelay(100);
|
||||
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x2n_error_handler - probe the hpt3x2n bus
|
||||
* @ap: ATA port to reset
|
||||
*
|
||||
* Perform the probe reset handling for the 3x2N
|
||||
*/
|
||||
|
||||
static void hpt3x2n_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, hpt3xn_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x2n_set_piomode - PIO setup
|
||||
* @ap: ATA interface
|
||||
* @adev: device on the interface
|
||||
*
|
||||
* Perform PIO mode setup.
|
||||
*/
|
||||
|
||||
static void hpt3x2n_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 addr1, addr2;
|
||||
u32 reg;
|
||||
u32 mode;
|
||||
u8 fast;
|
||||
|
||||
addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
|
||||
addr2 = 0x51 + 4 * ap->port_no;
|
||||
|
||||
/* Fast interrupt prediction disable, hold off interrupt disable */
|
||||
pci_read_config_byte(pdev, addr2, &fast);
|
||||
fast &= ~0x07;
|
||||
pci_write_config_byte(pdev, addr2, fast);
|
||||
|
||||
pci_read_config_dword(pdev, addr1, ®);
|
||||
mode = hpt3x2n_find_mode(ap, adev->pio_mode);
|
||||
mode &= ~0x8000000; /* No FIFO in PIO */
|
||||
mode &= ~0x30070000; /* Leave config bits alone */
|
||||
reg &= 0x30070000; /* Strip timing bits */
|
||||
pci_write_config_dword(pdev, addr1, reg | mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x2n_set_dmamode - DMA timing setup
|
||||
* @ap: ATA interface
|
||||
* @adev: Device being configured
|
||||
*
|
||||
* Set up the channel for MWDMA or UDMA modes. Much the same as with
|
||||
* PIO, load the mode number and then set MWDMA or UDMA flag.
|
||||
*/
|
||||
|
||||
static void hpt3x2n_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 addr1, addr2;
|
||||
u32 reg;
|
||||
u32 mode;
|
||||
u8 fast;
|
||||
|
||||
addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
|
||||
addr2 = 0x51 + 4 * ap->port_no;
|
||||
|
||||
/* Fast interrupt prediction disable, hold off interrupt disable */
|
||||
pci_read_config_byte(pdev, addr2, &fast);
|
||||
fast &= ~0x07;
|
||||
pci_write_config_byte(pdev, addr2, fast);
|
||||
|
||||
pci_read_config_dword(pdev, addr1, ®);
|
||||
mode = hpt3x2n_find_mode(ap, adev->dma_mode);
|
||||
mode |= 0x8000000; /* FIFO in MWDMA or UDMA */
|
||||
mode &= ~0xC0000000; /* Leave config bits alone */
|
||||
reg &= 0xC0000000; /* Strip timing bits */
|
||||
pci_write_config_dword(pdev, addr1, reg | mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x2n_bmdma_end - DMA engine stop
|
||||
* @qc: ATA command
|
||||
*
|
||||
* Clean up after the HPT3x2n and later DMA engine
|
||||
*/
|
||||
|
||||
static void hpt3x2n_bmdma_stop(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int mscreg = 0x50 + 2 * ap->port_no;
|
||||
u8 bwsr_stat, msc_stat;
|
||||
|
||||
pci_read_config_byte(pdev, 0x6A, &bwsr_stat);
|
||||
pci_read_config_byte(pdev, mscreg, &msc_stat);
|
||||
if (bwsr_stat & (1 << ap->port_no))
|
||||
pci_write_config_byte(pdev, mscreg, msc_stat | 0x30);
|
||||
ata_bmdma_stop(qc);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x2n_set_clock - clock control
|
||||
* @ap: ATA port
|
||||
* @source: 0x21 or 0x23 for PLL or PCI sourced clock
|
||||
*
|
||||
* Switch the ATA bus clock between the PLL and PCI clock sources
|
||||
* while correctly isolating the bus and resetting internal logic
|
||||
*
|
||||
* We must use the DPLL for
|
||||
* - writing
|
||||
* - second channel UDMA7 (SATA ports) or higher
|
||||
* - 66MHz PCI
|
||||
*
|
||||
* or we will underclock the device and get reduced performance.
|
||||
*/
|
||||
|
||||
static void hpt3x2n_set_clock(struct ata_port *ap, int source)
|
||||
{
|
||||
unsigned long bmdma = ap->ioaddr.bmdma_addr;
|
||||
|
||||
/* Tristate the bus */
|
||||
outb(0x80, bmdma+0x73);
|
||||
outb(0x80, bmdma+0x77);
|
||||
|
||||
/* Switch clock and reset channels */
|
||||
outb(source, bmdma+0x7B);
|
||||
outb(0xC0, bmdma+0x79);
|
||||
|
||||
/* Reset state machines */
|
||||
outb(0x37, bmdma+0x70);
|
||||
outb(0x37, bmdma+0x74);
|
||||
|
||||
/* Complete reset */
|
||||
outb(0x00, bmdma+0x79);
|
||||
|
||||
/* Reconnect channels to bus */
|
||||
outb(0x00, bmdma+0x73);
|
||||
outb(0x00, bmdma+0x77);
|
||||
}
|
||||
|
||||
/* Check if our partner interface is busy */
|
||||
|
||||
static int hpt3x2n_pair_idle(struct ata_port *ap)
|
||||
{
|
||||
struct ata_host *host = ap->host;
|
||||
struct ata_port *pair = host->ports[ap->port_no ^ 1];
|
||||
|
||||
if (pair->hsm_task_state == HSM_ST_IDLE)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hpt3x2n_use_dpll(struct ata_port *ap, int reading)
|
||||
{
|
||||
long flags = (long)ap->host->private_data;
|
||||
/* See if we should use the DPLL */
|
||||
if (reading == 0)
|
||||
return USE_DPLL; /* Needed for write */
|
||||
if (flags & PCI66)
|
||||
return USE_DPLL; /* Needed at 66Mhz */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static unsigned int hpt3x2n_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_taskfile *tf = &qc->tf;
|
||||
struct ata_port *ap = qc->ap;
|
||||
int flags = (long)ap->host->private_data;
|
||||
|
||||
if (hpt3x2n_pair_idle(ap)) {
|
||||
int dpll = hpt3x2n_use_dpll(ap, (tf->flags & ATA_TFLAG_WRITE));
|
||||
if ((flags & USE_DPLL) != dpll) {
|
||||
if (dpll == 1)
|
||||
hpt3x2n_set_clock(ap, 0x21);
|
||||
else
|
||||
hpt3x2n_set_clock(ap, 0x23);
|
||||
}
|
||||
}
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
static struct scsi_host_template hpt3x2n_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
/*
|
||||
* Configuration for HPT3x2n.
|
||||
*/
|
||||
|
||||
static struct ata_port_operations hpt3x2n_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = hpt3x2n_set_piomode,
|
||||
.set_dmamode = hpt3x2n_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = hpt3x2n_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = hpt3x2n_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = hpt3x2n_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* hpt3xn_calibrate_dpll - Calibrate the DPLL loop
|
||||
* @dev: PCI device
|
||||
*
|
||||
* Perform a calibration cycle on the HPT3xN DPLL. Returns 1 if this
|
||||
* succeeds
|
||||
*/
|
||||
|
||||
static int hpt3xn_calibrate_dpll(struct pci_dev *dev)
|
||||
{
|
||||
u8 reg5b;
|
||||
u32 reg5c;
|
||||
int tries;
|
||||
|
||||
for(tries = 0; tries < 0x5000; tries++) {
|
||||
udelay(50);
|
||||
pci_read_config_byte(dev, 0x5b, ®5b);
|
||||
if (reg5b & 0x80) {
|
||||
/* See if it stays set */
|
||||
for(tries = 0; tries < 0x1000; tries ++) {
|
||||
pci_read_config_byte(dev, 0x5b, ®5b);
|
||||
/* Failed ? */
|
||||
if ((reg5b & 0x80) == 0)
|
||||
return 0;
|
||||
}
|
||||
/* Turn off tuning, we have the DPLL set */
|
||||
pci_read_config_dword(dev, 0x5c, ®5c);
|
||||
pci_write_config_dword(dev, 0x5c, reg5c & ~ 0x100);
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
/* Never went stable */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int hpt3x2n_pci_clock(struct pci_dev *pdev)
|
||||
{
|
||||
unsigned long freq;
|
||||
u32 fcnt;
|
||||
|
||||
pci_read_config_dword(pdev, 0x70/*CHECKME*/, &fcnt);
|
||||
if ((fcnt >> 12) != 0xABCDE) {
|
||||
printk(KERN_WARNING "hpt3xn: BIOS clock data not set.\n");
|
||||
return 33; /* Not BIOS set */
|
||||
}
|
||||
fcnt &= 0x1FF;
|
||||
|
||||
freq = (fcnt * 77) / 192;
|
||||
|
||||
/* Clamp to bands */
|
||||
if (freq < 40)
|
||||
return 33;
|
||||
if (freq < 45)
|
||||
return 40;
|
||||
if (freq < 55)
|
||||
return 50;
|
||||
return 66;
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x2n_init_one - Initialise an HPT37X/302
|
||||
* @dev: PCI device
|
||||
* @id: Entry in match table
|
||||
*
|
||||
* Initialise an HPT3x2n device. There are some interesting complications
|
||||
* here. Firstly the chip may report 366 and be one of several variants.
|
||||
* Secondly all the timings depend on the clock for the chip which we must
|
||||
* detect and look up
|
||||
*
|
||||
* This is the known chip mappings. It may be missing a couple of later
|
||||
* releases.
|
||||
*
|
||||
* Chip version PCI Rev Notes
|
||||
* HPT372 4 (HPT366) 5 Other driver
|
||||
* HPT372N 4 (HPT366) 6 UDMA133
|
||||
* HPT372 5 (HPT372) 1 Other driver
|
||||
* HPT372N 5 (HPT372) 2 UDMA133
|
||||
* HPT302 6 (HPT302) * Other driver
|
||||
* HPT302N 6 (HPT302) > 1 UDMA133
|
||||
* HPT371 7 (HPT371) * Other driver
|
||||
* HPT371N 7 (HPT371) > 1 UDMA133
|
||||
* HPT374 8 (HPT374) * Other driver
|
||||
* HPT372N 9 (HPT372N) * UDMA133
|
||||
*
|
||||
* (1) UDMA133 support depends on the bus clock
|
||||
*
|
||||
* To pin down HPT371N
|
||||
*/
|
||||
|
||||
static int hpt3x2n_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
/* HPT372N and friends - UDMA133 */
|
||||
static struct ata_port_info info = {
|
||||
.sht = &hpt3x2n_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7f,
|
||||
.port_ops = &hpt3x2n_port_ops
|
||||
};
|
||||
struct ata_port_info *port_info[2];
|
||||
struct ata_port_info *port = &info;
|
||||
|
||||
u8 irqmask;
|
||||
u32 class_rev;
|
||||
|
||||
unsigned int pci_mhz;
|
||||
unsigned int f_low, f_high;
|
||||
int adjust;
|
||||
|
||||
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
|
||||
class_rev &= 0xFF;
|
||||
|
||||
switch(dev->device) {
|
||||
case PCI_DEVICE_ID_TTI_HPT366:
|
||||
if (class_rev < 6)
|
||||
return -ENODEV;
|
||||
break;
|
||||
case PCI_DEVICE_ID_TTI_HPT372:
|
||||
/* 372N if rev >= 1*/
|
||||
if (class_rev == 0)
|
||||
return -ENODEV;
|
||||
break;
|
||||
case PCI_DEVICE_ID_TTI_HPT302:
|
||||
if (class_rev < 2)
|
||||
return -ENODEV;
|
||||
break;
|
||||
case PCI_DEVICE_ID_TTI_HPT372N:
|
||||
break;
|
||||
default:
|
||||
printk(KERN_ERR "pata_hpt3x2n: PCI table is bogus please report (%d).\n", dev->device);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Ok so this is a chip we support */
|
||||
|
||||
pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
|
||||
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
|
||||
pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
|
||||
pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
|
||||
|
||||
pci_read_config_byte(dev, 0x5A, &irqmask);
|
||||
irqmask &= ~0x10;
|
||||
pci_write_config_byte(dev, 0x5a, irqmask);
|
||||
|
||||
/* Tune the PLL. HPT recommend using 75 for SATA, 66 for UDMA133 or
|
||||
50 for UDMA100. Right now we always use 66 */
|
||||
|
||||
pci_mhz = hpt3x2n_pci_clock(dev);
|
||||
|
||||
f_low = (pci_mhz * 48) / 66; /* PCI Mhz for 66Mhz DPLL */
|
||||
f_high = f_low + 2; /* Tolerance */
|
||||
|
||||
pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low | 0x100);
|
||||
/* PLL clock */
|
||||
pci_write_config_byte(dev, 0x5B, 0x21);
|
||||
|
||||
/* Unlike the 37x we don't try jiggling the frequency */
|
||||
for(adjust = 0; adjust < 8; adjust++) {
|
||||
if (hpt3xn_calibrate_dpll(dev))
|
||||
break;
|
||||
pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low);
|
||||
}
|
||||
if (adjust == 8)
|
||||
printk(KERN_WARNING "hpt3xn: DPLL did not stabilize.\n");
|
||||
|
||||
/* Set our private data up. We only need a few flags so we use
|
||||
it directly */
|
||||
port->private_data = NULL;
|
||||
if (pci_mhz > 60)
|
||||
port->private_data = (void *)PCI66;
|
||||
|
||||
/* Now kick off ATA set up */
|
||||
port_info[0] = port_info[1] = port;
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id hpt3x2n[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT366), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT302), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT372N), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver hpt3x2n_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = hpt3x2n,
|
||||
.probe = hpt3x2n_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init hpt3x2n_init(void)
|
||||
{
|
||||
return pci_register_driver(&hpt3x2n_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit hpt3x2n_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&hpt3x2n_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for the Highpoint HPT3x2n/30x");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, hpt3x2n);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(hpt3x2n_init);
|
||||
module_exit(hpt3x2n_exit);
|
||||
226
drivers/ata/pata_hpt3x3.c
Normal file
226
drivers/ata/pata_hpt3x3.c
Normal file
|
|
@ -0,0 +1,226 @@
|
|||
/*
|
||||
* pata_hpt3x3 - HPT3x3 driver
|
||||
* (c) Copyright 2005-2006 Red Hat
|
||||
*
|
||||
* Was pata_hpt34x but the naming was confusing as it supported the
|
||||
* 343 and 363 so it has been renamed.
|
||||
*
|
||||
* Based on:
|
||||
* linux/drivers/ide/pci/hpt34x.c Version 0.40 Sept 10, 2002
|
||||
* Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
|
||||
*
|
||||
* May be copied or modified under the terms of the GNU General Public
|
||||
* License
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_hpt3x3"
|
||||
#define DRV_VERSION "0.4.1"
|
||||
|
||||
static int hpt3x3_probe_init(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x3_probe_reset - reset the hpt3x3 bus
|
||||
* @ap: ATA port to reset
|
||||
*
|
||||
* Perform the housekeeping when doing an ATA bus reeset. We just
|
||||
* need to force the cable type.
|
||||
*/
|
||||
|
||||
static void hpt3x3_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, hpt3x3_probe_init, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x3_set_piomode - PIO setup
|
||||
* @ap: ATA interface
|
||||
* @adev: device on the interface
|
||||
*
|
||||
* Set our PIO requirements. This is fairly simple on the HPT3x3 as
|
||||
* all we have to do is clear the MWDMA and UDMA bits then load the
|
||||
* mode number.
|
||||
*/
|
||||
|
||||
static void hpt3x3_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 r1, r2;
|
||||
int dn = 2 * ap->port_no + adev->devno;
|
||||
|
||||
pci_read_config_dword(pdev, 0x44, &r1);
|
||||
pci_read_config_dword(pdev, 0x48, &r2);
|
||||
/* Load the PIO timing number */
|
||||
r1 &= ~(7 << (3 * dn));
|
||||
r1 |= (adev->pio_mode - XFER_PIO_0) << (3 * dn);
|
||||
r2 &= ~(0x11 << dn); /* Clear MWDMA and UDMA bits */
|
||||
|
||||
pci_write_config_dword(pdev, 0x44, r1);
|
||||
pci_write_config_dword(pdev, 0x48, r2);
|
||||
}
|
||||
|
||||
/**
|
||||
* hpt3x3_set_dmamode - DMA timing setup
|
||||
* @ap: ATA interface
|
||||
* @adev: Device being configured
|
||||
*
|
||||
* Set up the channel for MWDMA or UDMA modes. Much the same as with
|
||||
* PIO, load the mode number and then set MWDMA or UDMA flag.
|
||||
*/
|
||||
|
||||
static void hpt3x3_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 r1, r2;
|
||||
int dn = 2 * ap->port_no + adev->devno;
|
||||
int mode_num = adev->dma_mode & 0x0F;
|
||||
|
||||
pci_read_config_dword(pdev, 0x44, &r1);
|
||||
pci_read_config_dword(pdev, 0x48, &r2);
|
||||
/* Load the timing number */
|
||||
r1 &= ~(7 << (3 * dn));
|
||||
r1 |= (mode_num << (3 * dn));
|
||||
r2 &= ~(0x11 << dn); /* Clear MWDMA and UDMA bits */
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0)
|
||||
r2 |= 0x01 << dn; /* Ultra mode */
|
||||
else
|
||||
r2 |= 0x10 << dn; /* MWDMA */
|
||||
|
||||
pci_write_config_dword(pdev, 0x44, r1);
|
||||
pci_write_config_dword(pdev, 0x48, r2);
|
||||
}
|
||||
|
||||
static struct scsi_host_template hpt3x3_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations hpt3x3_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = hpt3x3_set_piomode,
|
||||
.set_dmamode = hpt3x3_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = hpt3x3_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* hpt3x3_init_one - Initialise an HPT343/363
|
||||
* @dev: PCI device
|
||||
* @id: Entry in match table
|
||||
*
|
||||
* Perform basic initialisation. The chip has a quirk that it won't
|
||||
* function unless it is at XX00. The old ATA driver touched this up
|
||||
* but we leave it for pci quirks to do properly.
|
||||
*/
|
||||
|
||||
static int hpt3x3_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &hpt3x3_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x07,
|
||||
.port_ops = &hpt3x3_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
u16 cmd;
|
||||
|
||||
/* Initialize the board */
|
||||
pci_write_config_word(dev, 0x80, 0x00);
|
||||
/* Check if it is a 343 or a 363. 363 has COMMAND_MEMORY set */
|
||||
pci_read_config_word(dev, PCI_COMMAND, &cmd);
|
||||
if (cmd & PCI_COMMAND_MEMORY)
|
||||
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
|
||||
else
|
||||
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
|
||||
|
||||
/* Now kick off ATA set up */
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id hpt3x3[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_TTI, PCI_DEVICE_ID_TTI_HPT343), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver hpt3x3_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = hpt3x3,
|
||||
.probe = hpt3x3_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init hpt3x3_init(void)
|
||||
{
|
||||
return pci_register_driver(&hpt3x3_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit hpt3x3_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&hpt3x3_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for the Highpoint HPT343/363");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, hpt3x3);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(hpt3x3_init);
|
||||
module_exit(hpt3x3_exit);
|
||||
156
drivers/ata/pata_isapnp.c
Normal file
156
drivers/ata/pata_isapnp.c
Normal file
|
|
@ -0,0 +1,156 @@
|
|||
|
||||
/*
|
||||
* pata-isapnp.c - ISA PnP PATA controller driver.
|
||||
* Copyright 2005/2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
|
||||
*
|
||||
* Based in part on ide-pnp.c by Andrey Panin <pazke@donpac.ru>
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/isapnp.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/ata.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_isapnp"
|
||||
#define DRV_VERSION "0.1.5"
|
||||
|
||||
static struct scsi_host_template isapnp_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations isapnp_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* isapnp_init_one - attach an isapnp interface
|
||||
* @idev: PnP device
|
||||
* @dev_id: matching detect line
|
||||
*
|
||||
* Register an ISA bus IDE interface. Such interfaces are PIO 0 and
|
||||
* non shared IRQ.
|
||||
*/
|
||||
|
||||
static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev_id)
|
||||
{
|
||||
struct ata_probe_ent ae;
|
||||
|
||||
if (pnp_port_valid(idev, 0) == 0)
|
||||
return -ENODEV;
|
||||
|
||||
/* FIXME: Should selected polled PIO here not fail */
|
||||
if (pnp_irq_valid(idev, 0) == 0)
|
||||
return -ENODEV;
|
||||
|
||||
memset(&ae, 0, sizeof(struct ata_probe_ent));
|
||||
INIT_LIST_HEAD(&ae.node);
|
||||
ae.dev = &idev->dev;
|
||||
ae.port_ops = &isapnp_port_ops;
|
||||
ae.sht = &isapnp_sht;
|
||||
ae.n_ports = 1;
|
||||
ae.pio_mask = 1; /* ISA so PIO 0 cycles */
|
||||
ae.irq = pnp_irq(idev, 0);
|
||||
ae.irq_flags = 0;
|
||||
ae.port_flags = ATA_FLAG_SLAVE_POSS;
|
||||
ae.port[0].cmd_addr = pnp_port_start(idev, 0);
|
||||
|
||||
if (pnp_port_valid(idev, 1) == 0) {
|
||||
ae.port[0].altstatus_addr = pnp_port_start(idev, 1);
|
||||
ae.port[0].ctl_addr = pnp_port_start(idev, 1);
|
||||
ae.port_flags |= ATA_FLAG_SRST;
|
||||
}
|
||||
ata_std_ports(&ae.port[0]);
|
||||
|
||||
if (ata_device_add(&ae) == 0)
|
||||
return -ENODEV;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* isapnp_remove_one - unplug an isapnp interface
|
||||
* @idev: PnP device
|
||||
*
|
||||
* Remove a previously configured PnP ATA port. Called only on module
|
||||
* unload events as the core does not currently deal with ISAPnP docking.
|
||||
*/
|
||||
|
||||
static void isapnp_remove_one(struct pnp_dev *idev)
|
||||
{
|
||||
struct device *dev = &idev->dev;
|
||||
struct ata_host *host = dev_get_drvdata(dev);
|
||||
|
||||
ata_host_remove(host);
|
||||
dev_set_drvdata(dev, NULL);
|
||||
}
|
||||
|
||||
static struct pnp_device_id isapnp_devices[] = {
|
||||
/* Generic ESDI/IDE/ATA compatible hard disk controller */
|
||||
{.id = "PNP0600", .driver_data = 0},
|
||||
{.id = ""}
|
||||
};
|
||||
|
||||
static struct pnp_driver isapnp_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = isapnp_devices,
|
||||
.probe = isapnp_init_one,
|
||||
.remove = isapnp_remove_one,
|
||||
};
|
||||
|
||||
static int __init isapnp_init(void)
|
||||
{
|
||||
return pnp_register_driver(&isapnp_driver);
|
||||
}
|
||||
|
||||
static void __exit isapnp_exit(void)
|
||||
{
|
||||
pnp_unregister_driver(&isapnp_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for ISA PnP ATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(isapnp_init);
|
||||
module_exit(isapnp_exit);
|
||||
288
drivers/ata/pata_it8172.c
Normal file
288
drivers/ata/pata_it8172.c
Normal file
|
|
@ -0,0 +1,288 @@
|
|||
/*
|
||||
* pata_it8172.c - IT8172 PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Based heavily on
|
||||
*
|
||||
* BRIEF MODULE DESCRIPTION
|
||||
* IT8172 IDE controller support
|
||||
*
|
||||
* Copyright 2000 MontaVista Software Inc.
|
||||
* Author: MontaVista Software, Inc.
|
||||
* stevel@mvista.com or source@mvista.com
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
||||
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
|
||||
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
||||
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
||||
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License along
|
||||
* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
* TODO
|
||||
* Check for errata
|
||||
* See if we really need to force native mode
|
||||
* PIO timings (also lacking in original)
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_it8172"
|
||||
#define DRV_VERSION "0.3.1"
|
||||
|
||||
static int it8172_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
static const struct pci_bits it8172_enable_bits[] = {
|
||||
{ 0x00, 0, 0x00, 0x00 },
|
||||
{ 0x40, 1, 0x00, 0x01 }
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
if (ap->port_no && !pci_test_config_bits(pdev, &it8172_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void it8172_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, it8172_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* it8172_set_pio_timing - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called by both the pio and dma setup functions to set the controller
|
||||
* timings for PIO transfers. We must load both the mode number and
|
||||
* timing values into the controller.
|
||||
*/
|
||||
|
||||
static void it8172_set_pio_timing(struct ata_port *ap, struct ata_device *adev, int pio)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u16 reg40;
|
||||
|
||||
pci_read_config_word(pdev, 0x40, ®40);
|
||||
|
||||
/*
|
||||
* FIX! The DIOR/DIOW pulse width and recovery times in port 0x44
|
||||
* are being left at the default values of 8 PCI clocks (242 nsec
|
||||
* for a 33 MHz clock). These can be safely shortened at higher
|
||||
* PIO modes. The DIOR/DIOW pulse width and recovery times only
|
||||
* apply to PIO modes, not to the DMA modes.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Enable port 0x44. The IT8172G spec is confused; it calls
|
||||
* this register the "Slave IDE Timing Register", but in fact,
|
||||
* it controls timing for both master and slave drives.
|
||||
*/
|
||||
|
||||
reg40 |= 0x4000;
|
||||
if (adev->devno) {
|
||||
reg40 &= 0xC006;
|
||||
if (pio > 1)
|
||||
/* Enable prefetch and IORDY sample-point */
|
||||
reg40 |= 0x0060;
|
||||
} else {
|
||||
reg40 &= 0xC060;
|
||||
if (pio > 1)
|
||||
/* Enable prefetch and IORDY sample-point */
|
||||
reg40 |= 0x0006;
|
||||
}
|
||||
/* Write back the enables */
|
||||
pci_write_config_word(pdev, 0x40, reg40);
|
||||
}
|
||||
|
||||
/**
|
||||
* it8172_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the PIO mode setup. We use a shared helper for this
|
||||
* as the DMA setup must also adjust the PIO timing information.
|
||||
*/
|
||||
|
||||
static void it8172_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
it8172_set_pio_timing(ap, adev, adev->pio_mode - XFER_PIO_0);
|
||||
}
|
||||
|
||||
/**
|
||||
* it8172_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the DMA mode setup. We must tune an appropriate PIO
|
||||
* mode to match.
|
||||
*/
|
||||
|
||||
static void it8172_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int dn = (2 * ap->port_no) + adev->devno;
|
||||
u8 reg48, reg4a;
|
||||
int pio;
|
||||
|
||||
static const int pio_map[] = { 1, 3, 4};
|
||||
/*
|
||||
* Setting the DMA cycle time to 2 or 3 PCI clocks (60 and 91 nsec
|
||||
* at 33 MHz PCI clock) seems to cause BadCRC errors during DMA
|
||||
* transfers on some drives, even though both numbers meet the minimum
|
||||
* ATAPI-4 spec of 73 and 54 nsec for UDMA 1 and 2 respectively.
|
||||
* So the faster times are just commented out here. The good news is
|
||||
* that the slower cycle time has very little affect on transfer
|
||||
* performance.
|
||||
*/
|
||||
|
||||
pci_read_config_byte(pdev, 0x48, ®48);
|
||||
pci_read_config_byte(pdev, 0x4A, ®4a);
|
||||
|
||||
reg4a &= ~(3 << (4 * dn));
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
reg48 |= 1 << dn;
|
||||
#ifdef UDMA_TIMING_SET
|
||||
reg4a |= ((adev->dma_mode - XFER_UDMA_0) << (4 * dn));
|
||||
#endif
|
||||
pio = 4;
|
||||
} else {
|
||||
pio = pio_map[adev->dma_mode - XFER_MW_DMA_0];
|
||||
reg48 &= ~ (1 << dn);
|
||||
}
|
||||
pci_write_config_byte(pdev, 0x48, reg48);
|
||||
pci_write_config_byte(pdev, 0x4A, reg4a);
|
||||
it8172_set_pio_timing(ap, adev, pio);
|
||||
|
||||
}
|
||||
|
||||
static struct scsi_host_template it8172_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations it8172_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = it8172_set_piomode,
|
||||
.set_dmamode = it8172_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = it8172_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int it8172_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &it8172_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x06, /* No MWDMA0 support */
|
||||
.udma_mask = 0x7,
|
||||
.port_ops = &it8172_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
if ((!(PCI_FUNC(dev->devfn) & 1) ||
|
||||
(!((dev->class >> 8) == PCI_CLASS_STORAGE_IDE))))
|
||||
return -ENODEV; /* IT8172 is more than an IDE controller */
|
||||
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id it8172[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_IT8172G), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver it8172_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = it8172,
|
||||
.probe = it8172_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init it8172_init(void)
|
||||
{
|
||||
return pci_register_driver(&it8172_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit it8172_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&it8172_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for ITE IT8172");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, it8172);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(it8172_init);
|
||||
module_exit(it8172_exit);
|
||||
847
drivers/ata/pata_it821x.c
Normal file
847
drivers/ata/pata_it821x.c
Normal file
|
|
@ -0,0 +1,847 @@
|
|||
/*
|
||||
* ata-it821x.c - IT821x PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* based upon
|
||||
*
|
||||
* it821x.c
|
||||
*
|
||||
* linux/drivers/ide/pci/it821x.c Version 0.09 December 2004
|
||||
*
|
||||
* Copyright (C) 2004 Red Hat <alan@redhat.com>
|
||||
*
|
||||
* May be copied or modified under the terms of the GNU General Public License
|
||||
* Based in part on the ITE vendor provided SCSI driver.
|
||||
*
|
||||
* Documentation available from
|
||||
* http://www.ite.com.tw/pc/IT8212F_V04.pdf
|
||||
* Some other documents are NDA.
|
||||
*
|
||||
* The ITE8212 isn't exactly a standard IDE controller. It has two
|
||||
* modes. In pass through mode then it is an IDE controller. In its smart
|
||||
* mode its actually quite a capable hardware raid controller disguised
|
||||
* as an IDE controller. Smart mode only understands DMA read/write and
|
||||
* identify, none of the fancier commands apply. The IT8211 is identical
|
||||
* in other respects but lacks the raid mode.
|
||||
*
|
||||
* Errata:
|
||||
* o Rev 0x10 also requires master/slave hold the same DMA timings and
|
||||
* cannot do ATAPI MWDMA.
|
||||
* o The identify data for raid volumes lacks CHS info (technically ok)
|
||||
* but also fails to set the LBA28 and other bits. We fix these in
|
||||
* the IDE probe quirk code.
|
||||
* o If you write LBA48 sized I/O's (ie > 256 sector) in smart mode
|
||||
* raid then the controller firmware dies
|
||||
* o Smart mode without RAID doesn't clear all the necessary identify
|
||||
* bits to reduce the command set to the one used
|
||||
*
|
||||
* This has a few impacts on the driver
|
||||
* - In pass through mode we do all the work you would expect
|
||||
* - In smart mode the clocking set up is done by the controller generally
|
||||
* but we must watch the other limits and filter.
|
||||
* - There are a few extra vendor commands that actually talk to the
|
||||
* controller but only work PIO with no IRQ.
|
||||
*
|
||||
* Vendor areas of the identify block in smart mode are used for the
|
||||
* timing and policy set up. Each HDD in raid mode also has a serial
|
||||
* block on the disk. The hardware extra commands are get/set chip status,
|
||||
* rebuild, get rebuild status.
|
||||
*
|
||||
* In Linux the driver supports pass through mode as if the device was
|
||||
* just another IDE controller. If the smart mode is running then
|
||||
* volumes are managed by the controller firmware and each IDE "disk"
|
||||
* is a raid volume. Even more cute - the controller can do automated
|
||||
* hotplug and rebuild.
|
||||
*
|
||||
* The pass through controller itself is a little demented. It has a
|
||||
* flaw that it has a single set of PIO/MWDMA timings per channel so
|
||||
* non UDMA devices restrict each others performance. It also has a
|
||||
* single clock source per channel so mixed UDMA100/133 performance
|
||||
* isn't perfect and we have to pick a clock. Thankfully none of this
|
||||
* matters in smart mode. ATAPI DMA is not currently supported.
|
||||
*
|
||||
* It seems the smart mode is a win for RAID1/RAID10 but otherwise not.
|
||||
*
|
||||
* TODO
|
||||
* - ATAPI and other speed filtering
|
||||
* - Command filter in smart mode
|
||||
* - RAID configuration ioctls
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
|
||||
#define DRV_NAME "pata_it821x"
|
||||
#define DRV_VERSION "0.3.2"
|
||||
|
||||
struct it821x_dev
|
||||
{
|
||||
unsigned int smart:1, /* Are we in smart raid mode */
|
||||
timing10:1; /* Rev 0x10 */
|
||||
u8 clock_mode; /* 0, ATA_50 or ATA_66 */
|
||||
u8 want[2][2]; /* Mode/Pri log for master slave */
|
||||
/* We need these for switching the clock when DMA goes on/off
|
||||
The high byte is the 66Mhz timing */
|
||||
u16 pio[2]; /* Cached PIO values */
|
||||
u16 mwdma[2]; /* Cached MWDMA values */
|
||||
u16 udma[2]; /* Cached UDMA values (per drive) */
|
||||
u16 last_device; /* Master or slave loaded ? */
|
||||
};
|
||||
|
||||
#define ATA_66 0
|
||||
#define ATA_50 1
|
||||
#define ATA_ANY 2
|
||||
|
||||
#define UDMA_OFF 0
|
||||
#define MWDMA_OFF 0
|
||||
|
||||
/*
|
||||
* We allow users to force the card into non raid mode without
|
||||
* flashing the alternative BIOS. This is also neccessary right now
|
||||
* for embedded platforms that cannot run a PC BIOS but are using this
|
||||
* device.
|
||||
*/
|
||||
|
||||
static int it8212_noraid;
|
||||
|
||||
/**
|
||||
* it821x_pre_reset - probe
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set the cable type
|
||||
*/
|
||||
|
||||
static int it821x_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_error_handler - probe/reset
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set the cable type and trigger a probe
|
||||
*/
|
||||
|
||||
static void it821x_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, it821x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_program - program the PIO/MWDMA registers
|
||||
* @ap: ATA port
|
||||
* @adev: Device to program
|
||||
* @timing: Timing value (66Mhz in top 8bits, 50 in the low 8)
|
||||
*
|
||||
* Program the PIO/MWDMA timing for this channel according to the
|
||||
* current clock. These share the same register so are managed by
|
||||
* the DMA start/stop sequence as with the old driver.
|
||||
*/
|
||||
|
||||
static void it821x_program(struct ata_port *ap, struct ata_device *adev, u16 timing)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
int channel = ap->port_no;
|
||||
u8 conf;
|
||||
|
||||
/* Program PIO/MWDMA timing bits */
|
||||
if (itdev->clock_mode == ATA_66)
|
||||
conf = timing >> 8;
|
||||
else
|
||||
conf = timing & 0xFF;
|
||||
pci_write_config_byte(pdev, 0x54 + 4 * channel, conf);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* it821x_program_udma - program the UDMA registers
|
||||
* @ap: ATA port
|
||||
* @adev: ATA device to update
|
||||
* @timing: Timing bits. Top 8 are for 66Mhz bottom for 50Mhz
|
||||
*
|
||||
* Program the UDMA timing for this drive according to the
|
||||
* current clock. Handles the dual clocks and also knows about
|
||||
* the errata on the 0x10 revision. The UDMA errata is partly handled
|
||||
* here and partly in start_dma.
|
||||
*/
|
||||
|
||||
static void it821x_program_udma(struct ata_port *ap, struct ata_device *adev, u16 timing)
|
||||
{
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int channel = ap->port_no;
|
||||
int unit = adev->devno;
|
||||
u8 conf;
|
||||
|
||||
/* Program UDMA timing bits */
|
||||
if (itdev->clock_mode == ATA_66)
|
||||
conf = timing >> 8;
|
||||
else
|
||||
conf = timing & 0xFF;
|
||||
if (itdev->timing10 == 0)
|
||||
pci_write_config_byte(pdev, 0x56 + 4 * channel + unit, conf);
|
||||
else {
|
||||
/* Early revision must be programmed for both together */
|
||||
pci_write_config_byte(pdev, 0x56 + 4 * channel, conf);
|
||||
pci_write_config_byte(pdev, 0x56 + 4 * channel + 1, conf);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_clock_strategy
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device being updated
|
||||
*
|
||||
* Select between the 50 and 66Mhz base clocks to get the best
|
||||
* results for this interface.
|
||||
*/
|
||||
|
||||
static void it821x_clock_strategy(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
u8 unit = adev->devno;
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
|
||||
int clock, altclock;
|
||||
u8 v;
|
||||
int sel = 0;
|
||||
|
||||
/* Look for the most wanted clocking */
|
||||
if (itdev->want[0][0] > itdev->want[1][0]) {
|
||||
clock = itdev->want[0][1];
|
||||
altclock = itdev->want[1][1];
|
||||
} else {
|
||||
clock = itdev->want[1][1];
|
||||
altclock = itdev->want[0][1];
|
||||
}
|
||||
|
||||
/* Master doesn't care does the slave ? */
|
||||
if (clock == ATA_ANY)
|
||||
clock = altclock;
|
||||
|
||||
/* Nobody cares - keep the same clock */
|
||||
if (clock == ATA_ANY)
|
||||
return;
|
||||
/* No change */
|
||||
if (clock == itdev->clock_mode)
|
||||
return;
|
||||
|
||||
/* Load this into the controller */
|
||||
if (clock == ATA_66)
|
||||
itdev->clock_mode = ATA_66;
|
||||
else {
|
||||
itdev->clock_mode = ATA_50;
|
||||
sel = 1;
|
||||
}
|
||||
pci_read_config_byte(pdev, 0x50, &v);
|
||||
v &= ~(1 << (1 + ap->port_no));
|
||||
v |= sel << (1 + ap->port_no);
|
||||
pci_write_config_byte(pdev, 0x50, v);
|
||||
|
||||
/*
|
||||
* Reprogram the UDMA/PIO of the pair drive for the switch
|
||||
* MWDMA will be dealt with by the dma switcher
|
||||
*/
|
||||
if (pair && itdev->udma[1-unit] != UDMA_OFF) {
|
||||
it821x_program_udma(ap, pair, itdev->udma[1-unit]);
|
||||
it821x_program(ap, pair, itdev->pio[1-unit]);
|
||||
}
|
||||
/*
|
||||
* Reprogram the UDMA/PIO of our drive for the switch.
|
||||
* MWDMA will be dealt with by the dma switcher
|
||||
*/
|
||||
if (itdev->udma[unit] != UDMA_OFF) {
|
||||
it821x_program_udma(ap, adev, itdev->udma[unit]);
|
||||
it821x_program(ap, adev, itdev->pio[unit]);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_passthru_set_piomode - set PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Configure for PIO mode. This is complicated as the register is
|
||||
* shared by PIO and MWDMA and for both channels.
|
||||
*/
|
||||
|
||||
static void it821x_passthru_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
/* Spec says 89 ref driver uses 88 */
|
||||
static const u16 pio[] = { 0xAA88, 0xA382, 0xA181, 0x3332, 0x3121 };
|
||||
static const u8 pio_want[] = { ATA_66, ATA_66, ATA_66, ATA_66, ATA_ANY };
|
||||
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
int unit = adev->devno;
|
||||
int mode_wanted = adev->pio_mode - XFER_PIO_0;
|
||||
|
||||
/* We prefer 66Mhz clock for PIO 0-3, don't care for PIO4 */
|
||||
itdev->want[unit][1] = pio_want[mode_wanted];
|
||||
itdev->want[unit][0] = 1; /* PIO is lowest priority */
|
||||
itdev->pio[unit] = pio[mode_wanted];
|
||||
it821x_clock_strategy(ap, adev);
|
||||
it821x_program(ap, adev, itdev->pio[unit]);
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_passthru_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Set up the DMA modes. The actions taken depend heavily on the mode
|
||||
* to use. If UDMA is used as is hopefully the usual case then the
|
||||
* timing register is private and we need only consider the clock. If
|
||||
* we are using MWDMA then we have to manage the setting ourself as
|
||||
* we switch devices and mode.
|
||||
*/
|
||||
|
||||
static void it821x_passthru_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const u16 dma[] = { 0x8866, 0x3222, 0x3121 };
|
||||
static const u8 mwdma_want[] = { ATA_ANY, ATA_66, ATA_ANY };
|
||||
static const u16 udma[] = { 0x4433, 0x4231, 0x3121, 0x2121, 0x1111, 0x2211, 0x1111 };
|
||||
static const u8 udma_want[] = { ATA_ANY, ATA_50, ATA_ANY, ATA_66, ATA_66, ATA_50, ATA_66 };
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
int channel = ap->port_no;
|
||||
int unit = adev->devno;
|
||||
u8 conf;
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
int mode_wanted = adev->dma_mode - XFER_UDMA_0;
|
||||
|
||||
itdev->want[unit][1] = udma_want[mode_wanted];
|
||||
itdev->want[unit][0] = 3; /* UDMA is high priority */
|
||||
itdev->mwdma[unit] = MWDMA_OFF;
|
||||
itdev->udma[unit] = udma[mode_wanted];
|
||||
if (mode_wanted >= 5)
|
||||
itdev->udma[unit] |= 0x8080; /* UDMA 5/6 select on */
|
||||
|
||||
/* UDMA on. Again revision 0x10 must do the pair */
|
||||
pci_read_config_byte(pdev, 0x50, &conf);
|
||||
if (itdev->timing10)
|
||||
conf &= channel ? 0x9F: 0xE7;
|
||||
else
|
||||
conf &= ~ (1 << (3 + 2 * channel + unit));
|
||||
pci_write_config_byte(pdev, 0x50, conf);
|
||||
it821x_clock_strategy(ap, adev);
|
||||
it821x_program_udma(ap, adev, itdev->udma[unit]);
|
||||
} else {
|
||||
int mode_wanted = adev->dma_mode - XFER_MW_DMA_0;
|
||||
|
||||
itdev->want[unit][1] = mwdma_want[mode_wanted];
|
||||
itdev->want[unit][0] = 2; /* MWDMA is low priority */
|
||||
itdev->mwdma[unit] = dma[mode_wanted];
|
||||
itdev->udma[unit] = UDMA_OFF;
|
||||
|
||||
/* UDMA bits off - Revision 0x10 do them in pairs */
|
||||
pci_read_config_byte(pdev, 0x50, &conf);
|
||||
if (itdev->timing10)
|
||||
conf |= channel ? 0x60: 0x18;
|
||||
else
|
||||
conf |= 1 << (3 + 2 * channel + unit);
|
||||
pci_write_config_byte(pdev, 0x50, conf);
|
||||
it821x_clock_strategy(ap, adev);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_passthru_dma_start - DMA start callback
|
||||
* @qc: Command in progress
|
||||
*
|
||||
* Usually drivers set the DMA timing at the point the set_dmamode call
|
||||
* is made. IT821x however requires we load new timings on the
|
||||
* transitions in some cases.
|
||||
*/
|
||||
|
||||
static void it821x_passthru_bmdma_start(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
int unit = adev->devno;
|
||||
|
||||
if (itdev->mwdma[unit] != MWDMA_OFF)
|
||||
it821x_program(ap, adev, itdev->mwdma[unit]);
|
||||
else if (itdev->udma[unit] != UDMA_OFF && itdev->timing10)
|
||||
it821x_program_udma(ap, adev, itdev->udma[unit]);
|
||||
ata_bmdma_start(qc);
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_passthru_dma_stop - DMA stop callback
|
||||
* @qc: ATA command
|
||||
*
|
||||
* We loaded new timings in dma_start, as a result we need to restore
|
||||
* the PIO timings in dma_stop so that the next command issue gets the
|
||||
* right clock values.
|
||||
*/
|
||||
|
||||
static void it821x_passthru_bmdma_stop(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
int unit = adev->devno;
|
||||
|
||||
ata_bmdma_stop(qc);
|
||||
if (itdev->mwdma[unit] != MWDMA_OFF)
|
||||
it821x_program(ap, adev, itdev->pio[unit]);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* it821x_passthru_dev_select - Select master/slave
|
||||
* @ap: ATA port
|
||||
* @device: Device number (not pointer)
|
||||
*
|
||||
* Device selection hook. If neccessary perform clock switching
|
||||
*/
|
||||
|
||||
static void it821x_passthru_dev_select(struct ata_port *ap,
|
||||
unsigned int device)
|
||||
{
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
if (itdev && device != itdev->last_device) {
|
||||
struct ata_device *adev = &ap->device[device];
|
||||
it821x_program(ap, adev, itdev->pio[adev->devno]);
|
||||
itdev->last_device = device;
|
||||
}
|
||||
ata_std_dev_select(ap, device);
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_smart_qc_issue_prot - wrap qc issue prot
|
||||
* @qc: command
|
||||
*
|
||||
* Wrap the command issue sequence for the IT821x. We need to
|
||||
* perform out own device selection timing loads before the
|
||||
* usual happenings kick off
|
||||
*/
|
||||
|
||||
static unsigned int it821x_smart_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
switch(qc->tf.command)
|
||||
{
|
||||
/* Commands the firmware supports */
|
||||
case ATA_CMD_READ:
|
||||
case ATA_CMD_READ_EXT:
|
||||
case ATA_CMD_WRITE:
|
||||
case ATA_CMD_WRITE_EXT:
|
||||
case ATA_CMD_PIO_READ:
|
||||
case ATA_CMD_PIO_READ_EXT:
|
||||
case ATA_CMD_PIO_WRITE:
|
||||
case ATA_CMD_PIO_WRITE_EXT:
|
||||
case ATA_CMD_READ_MULTI:
|
||||
case ATA_CMD_READ_MULTI_EXT:
|
||||
case ATA_CMD_WRITE_MULTI:
|
||||
case ATA_CMD_WRITE_MULTI_EXT:
|
||||
case ATA_CMD_ID_ATA:
|
||||
/* Arguably should just no-op this one */
|
||||
case ATA_CMD_SET_FEATURES:
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
printk(KERN_DEBUG "it821x: can't process command 0x%02X\n", qc->tf.command);
|
||||
return AC_ERR_INVALID;
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_passthru_qc_issue_prot - wrap qc issue prot
|
||||
* @qc: command
|
||||
*
|
||||
* Wrap the command issue sequence for the IT821x. We need to
|
||||
* perform out own device selection timing loads before the
|
||||
* usual happenings kick off
|
||||
*/
|
||||
|
||||
static unsigned int it821x_passthru_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
it821x_passthru_dev_select(qc->ap, qc->dev->devno);
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_smart_set_mode - mode setting
|
||||
* @ap: interface to set up
|
||||
*
|
||||
* Use a non standard set_mode function. We don't want to be tuned.
|
||||
* The BIOS configured everything. Our job is not to fiddle. We
|
||||
* read the dma enabled bits from the PCI configuration of the device
|
||||
* and respect them.
|
||||
*/
|
||||
|
||||
static void it821x_smart_set_mode(struct ata_port *ap)
|
||||
{
|
||||
int dma_enabled = 0;
|
||||
int i;
|
||||
|
||||
/* Bits 5 and 6 indicate if DMA is active on master/slave */
|
||||
/* It is possible that BMDMA isn't allocated */
|
||||
if (ap->ioaddr.bmdma_addr)
|
||||
dma_enabled = inb(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
|
||||
|
||||
for (i = 0; i < ATA_MAX_DEVICES; i++) {
|
||||
struct ata_device *dev = &ap->device[i];
|
||||
if (ata_dev_enabled(dev)) {
|
||||
/* We don't really care */
|
||||
dev->pio_mode = XFER_PIO_0;
|
||||
dev->dma_mode = XFER_MW_DMA_0;
|
||||
/* We do need the right mode information for DMA or PIO
|
||||
and this comes from the current configuration flags */
|
||||
if (dma_enabled & (1 << (5 + i))) {
|
||||
dev->xfer_mode = XFER_MW_DMA_0;
|
||||
dev->xfer_shift = ATA_SHIFT_MWDMA;
|
||||
dev->flags &= ~ATA_DFLAG_PIO;
|
||||
} else {
|
||||
dev->xfer_mode = XFER_PIO_0;
|
||||
dev->xfer_shift = ATA_SHIFT_PIO;
|
||||
dev->flags |= ATA_DFLAG_PIO;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_dev_config - Called each device identify
|
||||
* @ap: ATA port
|
||||
* @adev: Device that has just been identified
|
||||
*
|
||||
* Perform the initial setup needed for each device that is chip
|
||||
* special. In our case we need to lock the sector count to avoid
|
||||
* blowing the brains out of the firmware with large LBA48 requests
|
||||
*
|
||||
* FIXME: When FUA appears we need to block FUA too. And SMART and
|
||||
* basically we need to filter commands for this chip.
|
||||
*/
|
||||
|
||||
static void it821x_dev_config(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned char model_num[40];
|
||||
char *s;
|
||||
unsigned int len;
|
||||
|
||||
/* This block ought to be a library routine as it is in several
|
||||
drivers now */
|
||||
|
||||
ata_id_string(adev->id, model_num, ATA_ID_PROD_OFS,
|
||||
sizeof(model_num));
|
||||
s = &model_num[0];
|
||||
len = strnlen(s, sizeof(model_num));
|
||||
|
||||
/* ATAPI specifies that empty space is blank-filled; remove blanks */
|
||||
while ((len > 0) && (s[len - 1] == ' ')) {
|
||||
len--;
|
||||
s[len] = 0;
|
||||
}
|
||||
|
||||
if (adev->max_sectors > 255)
|
||||
adev->max_sectors = 255;
|
||||
|
||||
if (strstr(model_num, "Integrated Technology Express")) {
|
||||
/* RAID mode */
|
||||
printk(KERN_INFO "IT821x %sRAID%d volume",
|
||||
adev->id[147]?"Bootable ":"",
|
||||
adev->id[129]);
|
||||
if (adev->id[129] != 1)
|
||||
printk("(%dK stripe)", adev->id[146]);
|
||||
printk(".\n");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* it821x_check_atapi_dma - ATAPI DMA handler
|
||||
* @qc: Command we are about to issue
|
||||
*
|
||||
* Decide if this ATAPI command can be issued by DMA on this
|
||||
* controller. Return 0 if it can be.
|
||||
*/
|
||||
|
||||
static int it821x_check_atapi_dma(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct it821x_dev *itdev = ap->private_data;
|
||||
|
||||
/* No ATAPI DMA in smart mode */
|
||||
if (itdev->smart)
|
||||
return -EOPNOTSUPP;
|
||||
/* No ATAPI DMA on rev 10 */
|
||||
if (itdev->timing10)
|
||||
return -EOPNOTSUPP;
|
||||
/* Cool */
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* it821x_port_start - port setup
|
||||
* @ap: ATA port being set up
|
||||
*
|
||||
* The it821x needs to maintain private data structures and also to
|
||||
* use the standard PCI interface which lacks support for this
|
||||
* functionality. We instead set up the private data on the port
|
||||
* start hook, and tear it down on port stop
|
||||
*/
|
||||
|
||||
static int it821x_port_start(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct it821x_dev *itdev;
|
||||
u8 conf;
|
||||
|
||||
int ret = ata_port_start(ap);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
ap->private_data = kmalloc(sizeof(struct it821x_dev), GFP_KERNEL);
|
||||
if (ap->private_data == NULL) {
|
||||
ata_port_stop(ap);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
itdev = ap->private_data;
|
||||
memset(itdev, 0, sizeof(struct it821x_dev));
|
||||
|
||||
pci_read_config_byte(pdev, 0x50, &conf);
|
||||
|
||||
if (conf & 1) {
|
||||
itdev->smart = 1;
|
||||
/* Long I/O's although allowed in LBA48 space cause the
|
||||
onboard firmware to enter the twighlight zone */
|
||||
/* No ATAPI DMA in this mode either */
|
||||
}
|
||||
/* Pull the current clocks from 0x50 */
|
||||
if (conf & (1 << (1 + ap->port_no)))
|
||||
itdev->clock_mode = ATA_50;
|
||||
else
|
||||
itdev->clock_mode = ATA_66;
|
||||
|
||||
itdev->want[0][1] = ATA_ANY;
|
||||
itdev->want[1][1] = ATA_ANY;
|
||||
itdev->last_device = -1;
|
||||
|
||||
pci_read_config_byte(pdev, PCI_REVISION_ID, &conf);
|
||||
if (conf == 0x10) {
|
||||
itdev->timing10 = 1;
|
||||
/* Need to disable ATAPI DMA for this case */
|
||||
if (!itdev->smart)
|
||||
printk(KERN_WARNING DRV_NAME": Revision 0x10, workarounds activated.\n");
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* it821x_port_stop - port shutdown
|
||||
* @ap: ATA port being removed
|
||||
*
|
||||
* Release the private objects we added in it821x_port_start
|
||||
*/
|
||||
|
||||
static void it821x_port_stop(struct ata_port *ap) {
|
||||
kfree(ap->private_data);
|
||||
ap->private_data = NULL; /* We want an OOPS if we reuse this
|
||||
too late! */
|
||||
ata_port_stop(ap);
|
||||
}
|
||||
|
||||
static struct scsi_host_template it821x_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
/* 255 sectors to begin with. This is locked in smart mode but not
|
||||
in pass through */
|
||||
.max_sectors = 255,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations it821x_smart_port_ops = {
|
||||
.set_mode = it821x_smart_set_mode,
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.check_status = ata_check_status,
|
||||
.check_atapi_dma= it821x_check_atapi_dma,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
.dev_config = it821x_dev_config,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = it821x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = it821x_smart_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = it821x_port_start,
|
||||
.port_stop = it821x_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations it821x_passthru_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = it821x_passthru_set_piomode,
|
||||
.set_dmamode = it821x_passthru_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.check_atapi_dma= it821x_check_atapi_dma,
|
||||
.dev_select = it821x_passthru_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = it821x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = it821x_passthru_bmdma_start,
|
||||
.bmdma_stop = it821x_passthru_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = it821x_passthru_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
.irq_handler = ata_interrupt,
|
||||
|
||||
.port_start = it821x_port_start,
|
||||
.port_stop = it821x_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static void __devinit it821x_disable_raid(struct pci_dev *pdev)
|
||||
{
|
||||
/* Reset local CPU, and set BIOS not ready */
|
||||
pci_write_config_byte(pdev, 0x5E, 0x01);
|
||||
|
||||
/* Set to bypass mode, and reset PCI bus */
|
||||
pci_write_config_byte(pdev, 0x50, 0x00);
|
||||
pci_write_config_word(pdev, PCI_COMMAND,
|
||||
PCI_COMMAND_PARITY | PCI_COMMAND_IO |
|
||||
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
|
||||
pci_write_config_word(pdev, 0x40, 0xA0F3);
|
||||
|
||||
pci_write_config_dword(pdev,0x4C, 0x02040204);
|
||||
pci_write_config_byte(pdev, 0x42, 0x36);
|
||||
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x20);
|
||||
}
|
||||
|
||||
|
||||
static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
u8 conf;
|
||||
|
||||
static struct ata_port_info info_smart = {
|
||||
.sht = &it821x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &it821x_smart_port_ops
|
||||
};
|
||||
static struct ata_port_info info_passthru = {
|
||||
.sht = &it821x_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7f,
|
||||
.port_ops = &it821x_passthru_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2];
|
||||
|
||||
static char *mode[2] = { "pass through", "smart" };
|
||||
|
||||
/* Force the card into bypass mode if so requested */
|
||||
if (it8212_noraid) {
|
||||
printk(KERN_INFO DRV_NAME ": forcing bypass mode.\n");
|
||||
it821x_disable_raid(pdev);
|
||||
}
|
||||
pci_read_config_byte(pdev, 0x50, &conf);
|
||||
conf &= 1;
|
||||
|
||||
printk(KERN_INFO DRV_NAME ": controller in %s mode.\n", mode[conf]);
|
||||
if (conf == 0)
|
||||
port_info[0] = port_info[1] = &info_passthru;
|
||||
else
|
||||
port_info[0] = port_info[1] = &info_smart;
|
||||
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id it821x[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8211), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8212), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver it821x_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = it821x,
|
||||
.probe = it821x_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init it821x_init(void)
|
||||
{
|
||||
return pci_register_driver(&it821x_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit it821x_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&it821x_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for the IT8211/IT8212 IDE RAID controller");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, it821x);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
|
||||
module_param_named(noraid, it8212_noraid, int, S_IRUGO);
|
||||
MODULE_PARM_DESC(it8212_noraid, "Force card into bypass mode");
|
||||
|
||||
module_init(it821x_init);
|
||||
module_exit(it821x_exit);
|
||||
266
drivers/ata/pata_jmicron.c
Normal file
266
drivers/ata/pata_jmicron.c
Normal file
|
|
@ -0,0 +1,266 @@
|
|||
/*
|
||||
* pata_jmicron.c - JMicron ATA driver for non AHCI mode. This drives the
|
||||
* PATA port of the controller. The SATA ports are
|
||||
* driven by AHCI in the usual configuration although
|
||||
* this driver can handle other setups if we need it.
|
||||
*
|
||||
* (c) 2006 Red Hat <alan@redhat.com>
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/device.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/ata.h>
|
||||
|
||||
#define DRV_NAME "pata_jmicron"
|
||||
#define DRV_VERSION "0.1.2"
|
||||
|
||||
typedef enum {
|
||||
PORT_PATA0 = 0,
|
||||
PORT_PATA1 = 1,
|
||||
PORT_SATA = 2,
|
||||
} port_type;
|
||||
|
||||
/**
|
||||
* jmicron_pre_reset - check for 40/80 pin
|
||||
* @ap: Port
|
||||
*
|
||||
* Perform the PATA port setup we need.
|
||||
|
||||
* On the Jmicron 361/363 there is a single PATA port that can be mapped
|
||||
* either as primary or secondary (or neither). We don't do any policy
|
||||
* and setup here. We assume that has been done by init_one and the
|
||||
* BIOS.
|
||||
*/
|
||||
|
||||
static int jmicron_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 control;
|
||||
u32 control5;
|
||||
int port_mask = 1<< (4 * ap->port_no);
|
||||
int port = ap->port_no;
|
||||
port_type port_map[2];
|
||||
|
||||
/* Check if our port is enabled */
|
||||
pci_read_config_dword(pdev, 0x40, &control);
|
||||
if ((control & port_mask) == 0)
|
||||
return 0;
|
||||
|
||||
/* There are two basic mappings. One has the two SATA ports merged
|
||||
as master/slave and the secondary as PATA, the other has only the
|
||||
SATA port mapped */
|
||||
if (control & (1 << 23)) {
|
||||
port_map[0] = PORT_SATA;
|
||||
port_map[1] = PORT_PATA0;
|
||||
} else {
|
||||
port_map[0] = PORT_SATA;
|
||||
port_map[1] = PORT_SATA;
|
||||
}
|
||||
|
||||
/* The 365/366 may have this bit set to map the second PATA port
|
||||
as the internal primary channel */
|
||||
pci_read_config_dword(pdev, 0x80, &control5);
|
||||
if (control5 & (1<<24))
|
||||
port_map[0] = PORT_PATA1;
|
||||
|
||||
/* The two ports may then be logically swapped by the firmware */
|
||||
if (control & (1 << 22))
|
||||
port = port ^ 1;
|
||||
|
||||
/*
|
||||
* Now we know which physical port we are talking about we can
|
||||
* actually do our cable checking etc. Thankfully we don't need
|
||||
* to do the plumbing for other cases.
|
||||
*/
|
||||
switch (port_map[port])
|
||||
{
|
||||
case PORT_PATA0:
|
||||
if (control & (1 << 5))
|
||||
return 0;
|
||||
if (control & (1 << 3)) /* 40/80 pin primary */
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
break;
|
||||
case PORT_PATA1:
|
||||
/* Bit 21 is set if the port is enabled */
|
||||
if ((control5 & (1 << 21)) == 0)
|
||||
return 0;
|
||||
if (control5 & (1 << 19)) /* 40/80 pin secondary */
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
break;
|
||||
case PORT_SATA:
|
||||
ap->cbl = ATA_CBL_SATA;
|
||||
break;
|
||||
}
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* jmicron_error_handler - Setup and error handler
|
||||
* @ap: Port to handle
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void jmicron_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, jmicron_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/* No PIO or DMA methods needed for this device */
|
||||
|
||||
static struct scsi_host_template jmicron_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
/* Special handling needed if you have sector or LBA48 limits */
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
/* Use standard CHS mapping rules */
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations jmicron_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
|
||||
/* Task file is PCI ATA format, use helpers */
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = jmicron_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
/* BMDMA handling is PCI ATA format, use helpers */
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
/* Timeout handling. Special recovery hooks here */
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
/* Generic PATA PCI ATA helpers */
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* jmicron_init_one - Register Jmicron ATA PCI device with kernel services
|
||||
* @pdev: PCI device to register
|
||||
* @ent: Entry in jmicron_pci_tbl matching with @pdev
|
||||
*
|
||||
* Called from kernel PCI layer.
|
||||
*
|
||||
* LOCKING:
|
||||
* Inherited from PCI layer (may sleep).
|
||||
*
|
||||
* RETURNS:
|
||||
* Zero on success, or -ERRNO value.
|
||||
*/
|
||||
|
||||
static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &jmicron_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f,
|
||||
|
||||
.port_ops = &jmicron_ops,
|
||||
};
|
||||
struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
u32 reg;
|
||||
|
||||
if (id->driver_data != 368) {
|
||||
/* Put the controller into AHCI mode in case the AHCI driver
|
||||
has not yet been loaded. This can be done with either
|
||||
function present */
|
||||
|
||||
/* FIXME: We may want a way to override this in future */
|
||||
pci_write_config_byte(pdev, 0x41, 0xa1);
|
||||
}
|
||||
|
||||
/* PATA controller is fn 1, AHCI is fn 0 */
|
||||
if (PCI_FUNC(pdev->devfn) != 1)
|
||||
return -ENODEV;
|
||||
|
||||
if ( id->driver_data == 365 || id->driver_data == 366) {
|
||||
/* The 365/66 have two PATA channels, redirect the second */
|
||||
pci_read_config_dword(pdev, 0x80, ®);
|
||||
reg |= (1 << 24); /* IDE1 to PATA IDE secondary */
|
||||
pci_write_config_dword(pdev, 0x80, reg);
|
||||
}
|
||||
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id jmicron_pci_tbl[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361), 361},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363), 363},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365), 365},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366), 366},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368), 368},
|
||||
{ } /* terminate list */
|
||||
};
|
||||
|
||||
static struct pci_driver jmicron_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = jmicron_pci_tbl,
|
||||
.probe = jmicron_init_one,
|
||||
.remove = ata_pci_remove_one,
|
||||
};
|
||||
|
||||
static int __init jmicron_init(void)
|
||||
{
|
||||
return pci_register_driver(&jmicron_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit jmicron_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&jmicron_pci_driver);
|
||||
}
|
||||
|
||||
module_init(jmicron_init);
|
||||
module_exit(jmicron_exit);
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("SCSI low-level driver for Jmicron PATA ports");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, jmicron_pci_tbl);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
949
drivers/ata/pata_legacy.c
Normal file
949
drivers/ata/pata_legacy.c
Normal file
|
|
@ -0,0 +1,949 @@
|
|||
/*
|
||||
* pata-legacy.c - Legacy port PATA/SATA controller driver.
|
||||
* Copyright 2005/2006 Red Hat <alan@redhat.com>, all rights reserved.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; see the file COPYING. If not, write to
|
||||
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
* An ATA driver for the legacy ATA ports.
|
||||
*
|
||||
* Data Sources:
|
||||
* Opti 82C465/82C611 support: Data sheets at opti-inc.com
|
||||
* HT6560 series:
|
||||
* Promise 20230/20620:
|
||||
* http://www.ryston.cz/petr/vlb/pdc20230b.html
|
||||
* http://www.ryston.cz/petr/vlb/pdc20230c.html
|
||||
* http://www.ryston.cz/petr/vlb/pdc20630.html
|
||||
*
|
||||
* Unsupported but docs exist:
|
||||
* Appian/Adaptec AIC25VL01/Cirrus Logic PD7220
|
||||
* Winbond W83759A
|
||||
*
|
||||
* This driver handles legacy (that is "ISA/VLB side") IDE ports found
|
||||
* on PC class systems. There are three hybrid devices that are exceptions
|
||||
* The Cyrix 5510/5520 where a pre SFF ATA device is on the bridge and
|
||||
* the MPIIX where the tuning is PCI side but the IDE is "ISA side".
|
||||
*
|
||||
* Specific support is included for the ht6560a/ht6560b/opti82c611a/
|
||||
* opti82c465mv/promise 20230c/20630
|
||||
*
|
||||
* Use the autospeed and pio_mask options with:
|
||||
* Appian ADI/2 aka CLPD7220 or AIC25VL01.
|
||||
* Use the jumpers, autospeed and set pio_mask to the mode on the jumpers with
|
||||
* Goldstar GM82C711, PIC-1288A-125, UMC 82C871F, Winbond W83759,
|
||||
* Winbond W83759A, Promise PDC20230-B
|
||||
*
|
||||
* For now use autospeed and pio_mask as above with the W83759A. This may
|
||||
* change.
|
||||
*
|
||||
* TODO
|
||||
* Merge existing pata_qdi driver
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/ata.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#define DRV_NAME "pata_legacy"
|
||||
#define DRV_VERSION "0.5.3"
|
||||
|
||||
#define NR_HOST 6
|
||||
|
||||
static int legacy_port[NR_HOST] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 };
|
||||
static int legacy_irq[NR_HOST] = { 15, 14, 11, 10, 8, 12 };
|
||||
|
||||
struct legacy_data {
|
||||
unsigned long timing;
|
||||
u8 clock[2];
|
||||
u8 last;
|
||||
int fast;
|
||||
struct platform_device *platform_dev;
|
||||
|
||||
};
|
||||
|
||||
static struct legacy_data legacy_data[NR_HOST];
|
||||
static struct ata_host *legacy_host[NR_HOST];
|
||||
static int nr_legacy_host;
|
||||
|
||||
|
||||
static int probe_all; /* Set to check all ISA port ranges */
|
||||
static int ht6560a; /* HT 6560A on primary 1, secondary 2, both 3 */
|
||||
static int ht6560b; /* HT 6560A on primary 1, secondary 2, both 3 */
|
||||
static int opti82c611a; /* Opti82c611A on primary 1, secondary 2, both 3 */
|
||||
static int opti82c46x; /* Opti 82c465MV present (pri/sec autodetect) */
|
||||
static int autospeed; /* Chip present which snoops speed changes */
|
||||
static int pio_mask = 0x1F; /* PIO range for autospeed devices */
|
||||
|
||||
/**
|
||||
* legacy_set_mode - mode setting
|
||||
* @ap: IDE interface
|
||||
*
|
||||
* Use a non standard set_mode function. We don't want to be tuned.
|
||||
*
|
||||
* The BIOS configured everything. Our job is not to fiddle. Just use
|
||||
* whatever PIO the hardware is using and leave it at that. When we
|
||||
* get some kind of nice user driven API for control then we can
|
||||
* expand on this as per hdparm in the base kernel.
|
||||
*/
|
||||
|
||||
static void legacy_set_mode(struct ata_port *ap)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ATA_MAX_DEVICES; i++) {
|
||||
struct ata_device *dev = &ap->device[i];
|
||||
if (ata_dev_enabled(dev)) {
|
||||
dev->pio_mode = XFER_PIO_0;
|
||||
dev->xfer_mode = XFER_PIO_0;
|
||||
dev->xfer_shift = ATA_SHIFT_PIO;
|
||||
dev->flags |= ATA_DFLAG_PIO;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static struct scsi_host_template legacy_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
/*
|
||||
* These ops are used if the user indicates the hardware
|
||||
* snoops the commands to decide on the mode and handles the
|
||||
* mode selection "magically" itself. Several legacy controllers
|
||||
* do this. The mode range can be set if it is not 0x1F by setting
|
||||
* pio_mask as well.
|
||||
*/
|
||||
|
||||
static struct ata_port_operations simple_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer_noirq,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations legacy_port_ops = {
|
||||
.set_mode = legacy_set_mode,
|
||||
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer_noirq,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/*
|
||||
* Promise 20230C and 20620 support
|
||||
*
|
||||
* This controller supports PIO0 to PIO2. We set PIO timings conservatively to
|
||||
* allow for 50MHz Vesa Local Bus. The 20620 DMA support is weird being DMA to
|
||||
* controller and PIO'd to the host and not supported.
|
||||
*/
|
||||
|
||||
static void pdc20230_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
int tries = 5;
|
||||
int pio = adev->pio_mode - XFER_PIO_0;
|
||||
u8 rt;
|
||||
unsigned long flags;
|
||||
|
||||
/* Safe as UP only. Force I/Os to occur together */
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
/* Unlock the control interface */
|
||||
do
|
||||
{
|
||||
inb(0x1F5);
|
||||
outb(inb(0x1F2) | 0x80, 0x1F2);
|
||||
inb(0x1F2);
|
||||
inb(0x3F6);
|
||||
inb(0x3F6);
|
||||
inb(0x1F2);
|
||||
inb(0x1F2);
|
||||
}
|
||||
while((inb(0x1F2) & 0x80) && --tries);
|
||||
|
||||
local_irq_restore(flags);
|
||||
|
||||
outb(inb(0x1F4) & 0x07, 0x1F4);
|
||||
|
||||
rt = inb(0x1F3);
|
||||
rt &= 0x07 << (3 * adev->devno);
|
||||
if (pio)
|
||||
rt |= (1 + 3 * pio) << (3 * adev->devno);
|
||||
|
||||
udelay(100);
|
||||
outb(inb(0x1F2) | 0x01, 0x1F2);
|
||||
udelay(100);
|
||||
inb(0x1F5);
|
||||
|
||||
}
|
||||
|
||||
static void pdc_data_xfer_vlb(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data)
|
||||
{
|
||||
struct ata_port *ap = adev->ap;
|
||||
int slop = buflen & 3;
|
||||
unsigned long flags;
|
||||
|
||||
if (ata_id_has_dword_io(adev->id)) {
|
||||
local_irq_save(flags);
|
||||
|
||||
/* Perform the 32bit I/O synchronization sequence */
|
||||
inb(ap->ioaddr.nsect_addr);
|
||||
inb(ap->ioaddr.nsect_addr);
|
||||
inb(ap->ioaddr.nsect_addr);
|
||||
|
||||
/* Now the data */
|
||||
|
||||
if (write_data)
|
||||
outsl(ap->ioaddr.data_addr, buf, buflen >> 2);
|
||||
else
|
||||
insl(ap->ioaddr.data_addr, buf, buflen >> 2);
|
||||
|
||||
if (unlikely(slop)) {
|
||||
u32 pad;
|
||||
if (write_data) {
|
||||
memcpy(&pad, buf + buflen - slop, slop);
|
||||
outl(le32_to_cpu(pad), ap->ioaddr.data_addr);
|
||||
} else {
|
||||
pad = cpu_to_le16(inl(ap->ioaddr.data_addr));
|
||||
memcpy(buf + buflen - slop, &pad, slop);
|
||||
}
|
||||
}
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
else
|
||||
ata_pio_data_xfer_noirq(adev, buf, buflen, write_data);
|
||||
}
|
||||
|
||||
static struct ata_port_operations pdc20230_port_ops = {
|
||||
.set_piomode = pdc20230_set_piomode,
|
||||
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = pdc_data_xfer_vlb,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/*
|
||||
* Holtek 6560A support
|
||||
*
|
||||
* This controller supports PIO0 to PIO2 (no IORDY even though higher timings
|
||||
* can be loaded).
|
||||
*/
|
||||
|
||||
static void ht6560a_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
u8 active, recover;
|
||||
struct ata_timing t;
|
||||
|
||||
/* Get the timing data in cycles. For now play safe at 50Mhz */
|
||||
ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000);
|
||||
|
||||
active = FIT(t.active, 2, 15);
|
||||
recover = FIT(t.recover, 4, 15);
|
||||
|
||||
inb(0x3E6);
|
||||
inb(0x3E6);
|
||||
inb(0x3E6);
|
||||
inb(0x3E6);
|
||||
|
||||
outb(recover << 4 | active, ap->ioaddr.device_addr);
|
||||
inb(ap->ioaddr.status_addr);
|
||||
}
|
||||
|
||||
static struct ata_port_operations ht6560a_port_ops = {
|
||||
.set_piomode = ht6560a_set_piomode,
|
||||
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer, /* Check vlb/noirq */
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/*
|
||||
* Holtek 6560B support
|
||||
*
|
||||
* This controller supports PIO0 to PIO4. We honour the BIOS/jumper FIFO setting
|
||||
* unless we see an ATAPI device in which case we force it off.
|
||||
*
|
||||
* FIXME: need to implement 2nd channel support.
|
||||
*/
|
||||
|
||||
static void ht6560b_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
u8 active, recover;
|
||||
struct ata_timing t;
|
||||
|
||||
/* Get the timing data in cycles. For now play safe at 50Mhz */
|
||||
ata_timing_compute(adev, adev->pio_mode, &t, 20000, 1000);
|
||||
|
||||
active = FIT(t.active, 2, 15);
|
||||
recover = FIT(t.recover, 2, 16);
|
||||
recover &= 0x15;
|
||||
|
||||
inb(0x3E6);
|
||||
inb(0x3E6);
|
||||
inb(0x3E6);
|
||||
inb(0x3E6);
|
||||
|
||||
outb(recover << 4 | active, ap->ioaddr.device_addr);
|
||||
|
||||
if (adev->class != ATA_DEV_ATA) {
|
||||
u8 rconf = inb(0x3E6);
|
||||
if (rconf & 0x24) {
|
||||
rconf &= ~ 0x24;
|
||||
outb(rconf, 0x3E6);
|
||||
}
|
||||
}
|
||||
inb(ap->ioaddr.status_addr);
|
||||
}
|
||||
|
||||
static struct ata_port_operations ht6560b_port_ops = {
|
||||
.set_piomode = ht6560b_set_piomode,
|
||||
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer, /* FIXME: Check 32bit and noirq */
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/*
|
||||
* Opti core chipset helpers
|
||||
*/
|
||||
|
||||
/**
|
||||
* opti_syscfg - read OPTI chipset configuration
|
||||
* @reg: Configuration register to read
|
||||
*
|
||||
* Returns the value of an OPTI system board configuration register.
|
||||
*/
|
||||
|
||||
static u8 opti_syscfg(u8 reg)
|
||||
{
|
||||
unsigned long flags;
|
||||
u8 r;
|
||||
|
||||
/* Uniprocessor chipset and must force cycles adjancent */
|
||||
local_irq_save(flags);
|
||||
outb(reg, 0x22);
|
||||
r = inb(0x24);
|
||||
local_irq_restore(flags);
|
||||
return r;
|
||||
}
|
||||
|
||||
/*
|
||||
* Opti 82C611A
|
||||
*
|
||||
* This controller supports PIO0 to PIO3.
|
||||
*/
|
||||
|
||||
static void opti82c611a_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
u8 active, recover, setup;
|
||||
struct ata_timing t;
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
int clock;
|
||||
int khz[4] = { 50000, 40000, 33000, 25000 };
|
||||
u8 rc;
|
||||
|
||||
/* Enter configuration mode */
|
||||
inw(ap->ioaddr.error_addr);
|
||||
inw(ap->ioaddr.error_addr);
|
||||
outb(3, ap->ioaddr.nsect_addr);
|
||||
|
||||
/* Read VLB clock strapping */
|
||||
clock = 1000000000 / khz[inb(ap->ioaddr.lbah_addr) & 0x03];
|
||||
|
||||
/* Get the timing data in cycles */
|
||||
ata_timing_compute(adev, adev->pio_mode, &t, clock, 1000);
|
||||
|
||||
/* Setup timing is shared */
|
||||
if (pair) {
|
||||
struct ata_timing tp;
|
||||
ata_timing_compute(pair, pair->pio_mode, &tp, clock, 1000);
|
||||
|
||||
ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP);
|
||||
}
|
||||
|
||||
active = FIT(t.active, 2, 17) - 2;
|
||||
recover = FIT(t.recover, 1, 16) - 1;
|
||||
setup = FIT(t.setup, 1, 4) - 1;
|
||||
|
||||
/* Select the right timing bank for write timing */
|
||||
rc = inb(ap->ioaddr.lbal_addr);
|
||||
rc &= 0x7F;
|
||||
rc |= (adev->devno << 7);
|
||||
outb(rc, ap->ioaddr.lbal_addr);
|
||||
|
||||
/* Write the timings */
|
||||
outb(active << 4 | recover, ap->ioaddr.error_addr);
|
||||
|
||||
/* Select the right bank for read timings, also
|
||||
load the shared timings for address */
|
||||
rc = inb(ap->ioaddr.device_addr);
|
||||
rc &= 0xC0;
|
||||
rc |= adev->devno; /* Index select */
|
||||
rc |= (setup << 4) | 0x04;
|
||||
outb(rc, ap->ioaddr.device_addr);
|
||||
|
||||
/* Load the read timings */
|
||||
outb(active << 4 | recover, ap->ioaddr.data_addr);
|
||||
|
||||
/* Ensure the timing register mode is right */
|
||||
rc = inb (ap->ioaddr.lbal_addr);
|
||||
rc &= 0x73;
|
||||
rc |= 0x84;
|
||||
outb(rc, ap->ioaddr.lbal_addr);
|
||||
|
||||
/* Exit command mode */
|
||||
outb(0x83, ap->ioaddr.nsect_addr);
|
||||
}
|
||||
|
||||
|
||||
static struct ata_port_operations opti82c611a_port_ops = {
|
||||
.set_piomode = opti82c611a_set_piomode,
|
||||
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/*
|
||||
* Opti 82C465MV
|
||||
*
|
||||
* This controller supports PIO0 to PIO3. Unlike the 611A the MVB
|
||||
* version is dual channel but doesn't have a lot of unique registers.
|
||||
*/
|
||||
|
||||
static void opti82c46x_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
u8 active, recover, setup;
|
||||
struct ata_timing t;
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
int clock;
|
||||
int khz[4] = { 50000, 40000, 33000, 25000 };
|
||||
u8 rc;
|
||||
u8 sysclk;
|
||||
|
||||
/* Get the clock */
|
||||
sysclk = opti_syscfg(0xAC) & 0xC0; /* BIOS set */
|
||||
|
||||
/* Enter configuration mode */
|
||||
inw(ap->ioaddr.error_addr);
|
||||
inw(ap->ioaddr.error_addr);
|
||||
outb(3, ap->ioaddr.nsect_addr);
|
||||
|
||||
/* Read VLB clock strapping */
|
||||
clock = 1000000000 / khz[sysclk];
|
||||
|
||||
/* Get the timing data in cycles */
|
||||
ata_timing_compute(adev, adev->pio_mode, &t, clock, 1000);
|
||||
|
||||
/* Setup timing is shared */
|
||||
if (pair) {
|
||||
struct ata_timing tp;
|
||||
ata_timing_compute(pair, pair->pio_mode, &tp, clock, 1000);
|
||||
|
||||
ata_timing_merge(&t, &tp, &t, ATA_TIMING_SETUP);
|
||||
}
|
||||
|
||||
active = FIT(t.active, 2, 17) - 2;
|
||||
recover = FIT(t.recover, 1, 16) - 1;
|
||||
setup = FIT(t.setup, 1, 4) - 1;
|
||||
|
||||
/* Select the right timing bank for write timing */
|
||||
rc = inb(ap->ioaddr.lbal_addr);
|
||||
rc &= 0x7F;
|
||||
rc |= (adev->devno << 7);
|
||||
outb(rc, ap->ioaddr.lbal_addr);
|
||||
|
||||
/* Write the timings */
|
||||
outb(active << 4 | recover, ap->ioaddr.error_addr);
|
||||
|
||||
/* Select the right bank for read timings, also
|
||||
load the shared timings for address */
|
||||
rc = inb(ap->ioaddr.device_addr);
|
||||
rc &= 0xC0;
|
||||
rc |= adev->devno; /* Index select */
|
||||
rc |= (setup << 4) | 0x04;
|
||||
outb(rc, ap->ioaddr.device_addr);
|
||||
|
||||
/* Load the read timings */
|
||||
outb(active << 4 | recover, ap->ioaddr.data_addr);
|
||||
|
||||
/* Ensure the timing register mode is right */
|
||||
rc = inb (ap->ioaddr.lbal_addr);
|
||||
rc &= 0x73;
|
||||
rc |= 0x84;
|
||||
outb(rc, ap->ioaddr.lbal_addr);
|
||||
|
||||
/* Exit command mode */
|
||||
outb(0x83, ap->ioaddr.nsect_addr);
|
||||
|
||||
/* We need to know this for quad device on the MVB */
|
||||
ap->host->private_data = ap;
|
||||
}
|
||||
|
||||
/**
|
||||
* opt82c465mv_qc_issue_prot - command issue
|
||||
* @qc: command pending
|
||||
*
|
||||
* Called when the libata layer is about to issue a command. We wrap
|
||||
* this interface so that we can load the correct ATA timings. The
|
||||
* MVB has a single set of timing registers and these are shared
|
||||
* across channels. As there are two registers we really ought to
|
||||
* track the last two used values as a sort of register window. For
|
||||
* now we just reload on a channel switch. On the single channel
|
||||
* setup this condition never fires so we do nothing extra.
|
||||
*
|
||||
* FIXME: dual channel needs ->serialize support
|
||||
*/
|
||||
|
||||
static unsigned int opti82c46x_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
|
||||
/* If timings are set and for the wrong channel (2nd test is
|
||||
due to a libata shortcoming and will eventually go I hope) */
|
||||
if (ap->host->private_data != ap->host
|
||||
&& ap->host->private_data != NULL)
|
||||
opti82c46x_set_piomode(ap, adev);
|
||||
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
static struct ata_port_operations opti82c46x_port_ops = {
|
||||
.set_piomode = opti82c46x_set_piomode,
|
||||
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = opti82c46x_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* legacy_init_one - attach a legacy interface
|
||||
* @port: port number
|
||||
* @io: I/O port start
|
||||
* @ctrl: control port
|
||||
* @irq: interrupt line
|
||||
*
|
||||
* Register an ISA bus IDE interface. Such interfaces are PIO and we
|
||||
* assume do not support IRQ sharing.
|
||||
*/
|
||||
|
||||
static __init int legacy_init_one(int port, unsigned long io, unsigned long ctrl, int irq)
|
||||
{
|
||||
struct legacy_data *ld = &legacy_data[nr_legacy_host];
|
||||
struct ata_probe_ent ae;
|
||||
struct platform_device *pdev;
|
||||
int ret = -EBUSY;
|
||||
struct ata_port_operations *ops = &legacy_port_ops;
|
||||
int pio_modes = pio_mask;
|
||||
u32 mask = (1 << port);
|
||||
|
||||
if (request_region(io, 8, "pata_legacy") == NULL)
|
||||
return -EBUSY;
|
||||
if (request_region(ctrl, 1, "pata_legacy") == NULL)
|
||||
goto fail_io;
|
||||
|
||||
pdev = platform_device_register_simple(DRV_NAME, nr_legacy_host, NULL, 0);
|
||||
if (pdev == NULL)
|
||||
goto fail_dev;
|
||||
|
||||
if (ht6560a & mask) {
|
||||
ops = &ht6560a_port_ops;
|
||||
pio_modes = 0x07;
|
||||
}
|
||||
if (ht6560b & mask) {
|
||||
ops = &ht6560b_port_ops;
|
||||
pio_modes = 0x1F;
|
||||
}
|
||||
if (opti82c611a & mask) {
|
||||
ops = &opti82c611a_port_ops;
|
||||
pio_modes = 0x0F;
|
||||
}
|
||||
if (opti82c46x & mask) {
|
||||
ops = &opti82c46x_port_ops;
|
||||
pio_modes = 0x0F;
|
||||
}
|
||||
|
||||
/* Probe for automatically detectable controllers */
|
||||
|
||||
if (io == 0x1F0 && ops == &legacy_port_ops) {
|
||||
unsigned long flags;
|
||||
|
||||
local_irq_save(flags);
|
||||
|
||||
/* Probes */
|
||||
inb(0x1F5);
|
||||
outb(inb(0x1F2) | 0x80, 0x1F2);
|
||||
inb(0x1F2);
|
||||
inb(0x3F6);
|
||||
inb(0x3F6);
|
||||
inb(0x1F2);
|
||||
inb(0x1F2);
|
||||
|
||||
if ((inb(0x1F2) & 0x80) == 0) {
|
||||
/* PDC20230c or 20630 ? */
|
||||
printk(KERN_INFO "PDC20230-C/20630 VLB ATA controller detected.\n");
|
||||
pio_modes = 0x07;
|
||||
ops = &pdc20230_port_ops;
|
||||
udelay(100);
|
||||
inb(0x1F5);
|
||||
} else {
|
||||
outb(0x55, 0x1F2);
|
||||
inb(0x1F2);
|
||||
inb(0x1F2);
|
||||
if (inb(0x1F2) == 0x00) {
|
||||
printk(KERN_INFO "PDC20230-B VLB ATA controller detected.\n");
|
||||
}
|
||||
}
|
||||
local_irq_restore(flags);
|
||||
}
|
||||
|
||||
|
||||
/* Chip does mode setting by command snooping */
|
||||
if (ops == &legacy_port_ops && (autospeed & mask))
|
||||
ops = &simple_port_ops;
|
||||
memset(&ae, 0, sizeof(struct ata_probe_ent));
|
||||
INIT_LIST_HEAD(&ae.node);
|
||||
ae.dev = &pdev->dev;
|
||||
ae.port_ops = ops;
|
||||
ae.sht = &legacy_sht;
|
||||
ae.n_ports = 1;
|
||||
ae.pio_mask = pio_modes;
|
||||
ae.irq = irq;
|
||||
ae.irq_flags = 0;
|
||||
ae.port_flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST;
|
||||
ae.port[0].cmd_addr = io;
|
||||
ae.port[0].altstatus_addr = ctrl;
|
||||
ae.port[0].ctl_addr = ctrl;
|
||||
ata_std_ports(&ae.port[0]);
|
||||
ae.private_data = ld;
|
||||
|
||||
ret = ata_device_add(&ae);
|
||||
if (ret == 0) {
|
||||
ret = -ENODEV;
|
||||
goto fail;
|
||||
}
|
||||
legacy_host[nr_legacy_host++] = dev_get_drvdata(&pdev->dev);
|
||||
ld->platform_dev = pdev;
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
platform_device_unregister(pdev);
|
||||
fail_dev:
|
||||
release_region(ctrl, 1);
|
||||
fail_io:
|
||||
release_region(io, 8);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* legacy_check_special_cases - ATA special cases
|
||||
* @p: PCI device to check
|
||||
* @master: set this if we find an ATA master
|
||||
* @master: set this if we find an ATA secondary
|
||||
*
|
||||
* A small number of vendors implemented early PCI ATA interfaces on bridge logic
|
||||
* without the ATA interface being PCI visible. Where we have a matching PCI driver
|
||||
* we must skip the relevant device here. If we don't know about it then the legacy
|
||||
* driver is the right driver anyway.
|
||||
*/
|
||||
|
||||
static void legacy_check_special_cases(struct pci_dev *p, int *primary, int *secondary)
|
||||
{
|
||||
/* Cyrix CS5510 pre SFF MWDMA ATA on the bridge */
|
||||
if (p->vendor == 0x1078 && p->device == 0x0000) {
|
||||
*primary = *secondary = 1;
|
||||
return;
|
||||
}
|
||||
/* Cyrix CS5520 pre SFF MWDMA ATA on the bridge */
|
||||
if (p->vendor == 0x1078 && p->device == 0x0002) {
|
||||
*primary = *secondary = 1;
|
||||
return;
|
||||
}
|
||||
/* Intel MPIIX - PIO ATA on non PCI side of bridge */
|
||||
if (p->vendor == 0x8086 && p->device == 0x1234) {
|
||||
u16 r;
|
||||
pci_read_config_word(p, 0x6C, &r);
|
||||
if (r & 0x8000) { /* ATA port enabled */
|
||||
if (r & 0x4000)
|
||||
*secondary = 1;
|
||||
else
|
||||
*primary = 1;
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* legacy_init - attach legacy interfaces
|
||||
*
|
||||
* Attach legacy IDE interfaces by scanning the usual IRQ/port suspects.
|
||||
* Right now we do not scan the ide0 and ide1 address but should do so
|
||||
* for non PCI systems or systems with no PCI IDE legacy mode devices.
|
||||
* If you fix that note there are special cases to consider like VLB
|
||||
* drivers and CS5510/20.
|
||||
*/
|
||||
|
||||
static __init int legacy_init(void)
|
||||
{
|
||||
int i;
|
||||
int ct = 0;
|
||||
int primary = 0;
|
||||
int secondary = 0;
|
||||
int last_port = NR_HOST;
|
||||
|
||||
struct pci_dev *p = NULL;
|
||||
|
||||
for_each_pci_dev(p) {
|
||||
int r;
|
||||
/* Check for any overlap of the system ATA mappings. Native mode controllers
|
||||
stuck on these addresses or some devices in 'raid' mode won't be found by
|
||||
the storage class test */
|
||||
for (r = 0; r < 6; r++) {
|
||||
if (pci_resource_start(p, r) == 0x1f0)
|
||||
primary = 1;
|
||||
if (pci_resource_start(p, r) == 0x170)
|
||||
secondary = 1;
|
||||
}
|
||||
/* Check for special cases */
|
||||
legacy_check_special_cases(p, &primary, &secondary);
|
||||
|
||||
/* If PCI bus is present then don't probe for tertiary legacy ports */
|
||||
if (probe_all == 0)
|
||||
last_port = 2;
|
||||
}
|
||||
|
||||
/* If an OPTI 82C46X is present find out where the channels are */
|
||||
if (opti82c46x) {
|
||||
static const char *optis[4] = {
|
||||
"3/463MV", "5MV",
|
||||
"5MVA", "5MVB"
|
||||
};
|
||||
u8 chans = 1;
|
||||
u8 ctrl = (opti_syscfg(0x30) & 0xC0) >> 6;
|
||||
|
||||
opti82c46x = 3; /* Assume master and slave first */
|
||||
printk(KERN_INFO DRV_NAME ": Opti 82C46%s chipset support.\n", optis[ctrl]);
|
||||
if (ctrl == 3)
|
||||
chans = (opti_syscfg(0x3F) & 0x20) ? 2 : 1;
|
||||
ctrl = opti_syscfg(0xAC);
|
||||
/* Check enabled and this port is the 465MV port. On the
|
||||
MVB we may have two channels */
|
||||
if (ctrl & 8) {
|
||||
if (ctrl & 4)
|
||||
opti82c46x = 2; /* Slave */
|
||||
else
|
||||
opti82c46x = 1; /* Master */
|
||||
if (chans == 2)
|
||||
opti82c46x = 3; /* Master and Slave */
|
||||
} /* Slave only */
|
||||
else if (chans == 1)
|
||||
opti82c46x = 1;
|
||||
}
|
||||
|
||||
for (i = 0; i < last_port; i++) {
|
||||
/* Skip primary if we have seen a PCI one */
|
||||
if (i == 0 && primary == 1)
|
||||
continue;
|
||||
/* Skip secondary if we have seen a PCI one */
|
||||
if (i == 1 && secondary == 1)
|
||||
continue;
|
||||
if (legacy_init_one(i, legacy_port[i],
|
||||
legacy_port[i] + 0x0206,
|
||||
legacy_irq[i]) == 0)
|
||||
ct++;
|
||||
}
|
||||
if (ct != 0)
|
||||
return 0;
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static __exit void legacy_exit(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < nr_legacy_host; i++) {
|
||||
struct legacy_data *ld = &legacy_data[i];
|
||||
struct ata_port *ap =legacy_host[i]->ports[0];
|
||||
unsigned long io = ap->ioaddr.cmd_addr;
|
||||
unsigned long ctrl = ap->ioaddr.ctl_addr;
|
||||
ata_host_remove(legacy_host[i]);
|
||||
platform_device_unregister(ld->platform_dev);
|
||||
if (ld->timing)
|
||||
release_region(ld->timing, 2);
|
||||
release_region(io, 8);
|
||||
release_region(ctrl, 1);
|
||||
}
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for legacy ATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_param(probe_all, int, 0);
|
||||
module_param(autospeed, int, 0);
|
||||
module_param(ht6560a, int, 0);
|
||||
module_param(ht6560b, int, 0);
|
||||
module_param(opti82c611a, int, 0);
|
||||
module_param(opti82c46x, int, 0);
|
||||
module_param(pio_mask, int, 0);
|
||||
|
||||
module_init(legacy_init);
|
||||
module_exit(legacy_exit);
|
||||
|
||||
313
drivers/ata/pata_mpiix.c
Normal file
313
drivers/ata/pata_mpiix.c
Normal file
|
|
@ -0,0 +1,313 @@
|
|||
/*
|
||||
* pata_mpiix.c - Intel MPIIX PATA for new ATA layer
|
||||
* (C) 2005-2006 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* The MPIIX is different enough to the PIIX4 and friends that we give it
|
||||
* a separate driver. The old ide/pci code handles this by just not tuning
|
||||
* MPIIX at all.
|
||||
*
|
||||
* The MPIIX also differs in another important way from the majority of PIIX
|
||||
* devices. The chip is a bridge (pardon the pun) between the old world of
|
||||
* ISA IDE and PCI IDE. Although the ATA timings are PCI configured the actual
|
||||
* IDE controller is not decoded in PCI space and the chip does not claim to
|
||||
* be IDE class PCI. This requires slightly non-standard probe logic compared
|
||||
* with PCI IDE and also that we do not disable the device when our driver is
|
||||
* unloaded (as it has many other functions).
|
||||
*
|
||||
* The driver conciously keeps this logic internally to avoid pushing quirky
|
||||
* PATA history into the clean libata layer.
|
||||
*
|
||||
* Thinkpad specific note: If you boot an MPIIX using thinkpad with a PCMCIA
|
||||
* hard disk present this driver will not detect it. This is not a bug. In this
|
||||
* configuration the secondary port of the MPIIX is disabled and the addresses
|
||||
* are decoded by the PCMCIA bridge and therefore are for a generic IDE driver
|
||||
* to operate.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_mpiix"
|
||||
#define DRV_VERSION "0.7.1"
|
||||
|
||||
enum {
|
||||
IDETIM = 0x6C, /* IDE control register */
|
||||
IORDY = (1 << 1),
|
||||
PPE = (1 << 2),
|
||||
FTIM = (1 << 0),
|
||||
ENABLED = (1 << 15),
|
||||
SECONDARY = (1 << 14)
|
||||
};
|
||||
|
||||
static int mpiix_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static const struct pci_bits mpiix_enable_bits[] = {
|
||||
{ 0x6D, 1, 0x80, 0x80 },
|
||||
{ 0x6F, 1, 0x80, 0x80 }
|
||||
};
|
||||
|
||||
if (!pci_test_config_bits(pdev, &mpiix_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* mpiix_error_handler - probe reset
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform the ATA probe and bus reset sequence plus specific handling
|
||||
* for this hardware. The MPIIX has the enable bits in a different place
|
||||
* to PIIX4 and friends. As a pure PIO device it has no cable detect
|
||||
*/
|
||||
|
||||
static void mpiix_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, mpiix_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* mpiix_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the PIO mode setup. The MPIIX allows us to program the
|
||||
* IORDY sample point (2-5 clocks), recovery 1-4 clocks and whether
|
||||
* prefetching or iordy are used.
|
||||
*
|
||||
* This would get very ugly because we can only program timing for one
|
||||
* device at a time, the other gets PIO0. Fortunately libata calls
|
||||
* our qc_issue_prot command before a command is issued so we can
|
||||
* flip the timings back and forth to reduce the pain.
|
||||
*/
|
||||
|
||||
static void mpiix_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
int control = 0;
|
||||
int pio = adev->pio_mode - XFER_PIO_0;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u16 idetim;
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 },
|
||||
{ 0, 0 },
|
||||
{ 1, 0 },
|
||||
{ 2, 1 },
|
||||
{ 2, 3 }, };
|
||||
|
||||
pci_read_config_word(pdev, IDETIM, &idetim);
|
||||
/* Mask the IORDY/TIME/PPE0 bank for this device */
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
control |= PPE; /* PPE enable for disk */
|
||||
if (ata_pio_need_iordy(adev))
|
||||
control |= IORDY; /* IORDY */
|
||||
if (pio > 0)
|
||||
control |= FTIM; /* This drive is on the fast timing bank */
|
||||
|
||||
/* Mask out timing and clear both TIME bank selects */
|
||||
idetim &= 0xCCEE;
|
||||
idetim &= ~(0x07 << (2 * adev->devno));
|
||||
idetim |= (control << (2 * adev->devno));
|
||||
|
||||
idetim |= (timings[pio][0] << 12) | (timings[pio][1] << 8);
|
||||
pci_write_config_word(pdev, IDETIM, idetim);
|
||||
|
||||
/* We use ap->private_data as a pointer to the device currently
|
||||
loaded for timing */
|
||||
ap->private_data = adev;
|
||||
}
|
||||
|
||||
/**
|
||||
* mpiix_qc_issue_prot - command issue
|
||||
* @qc: command pending
|
||||
*
|
||||
* Called when the libata layer is about to issue a command. We wrap
|
||||
* this interface so that we can load the correct ATA timings if
|
||||
* neccessary. Our logic also clears TIME0/TIME1 for the other device so
|
||||
* that, even if we get this wrong, cycles to the other device will
|
||||
* be made PIO0.
|
||||
*/
|
||||
|
||||
static unsigned int mpiix_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
|
||||
/* If modes have been configured and the channel data is not loaded
|
||||
then load it. We have to check if pio_mode is set as the core code
|
||||
does not set adev->pio_mode to XFER_PIO_0 while probing as would be
|
||||
logical */
|
||||
|
||||
if (adev->pio_mode && adev != ap->private_data)
|
||||
mpiix_set_piomode(ap, adev);
|
||||
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
static struct scsi_host_template mpiix_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations mpiix_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = mpiix_set_piomode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = mpiix_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = mpiix_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int mpiix_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
/* Single threaded by the PCI probe logic */
|
||||
static struct ata_probe_ent probe[2];
|
||||
static int printed_version;
|
||||
u16 idetim;
|
||||
int enabled;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
|
||||
|
||||
/* MPIIX has many functions which can be turned on or off according
|
||||
to other devices present. Make sure IDE is enabled before we try
|
||||
and use it */
|
||||
|
||||
pci_read_config_word(dev, IDETIM, &idetim);
|
||||
if (!(idetim & ENABLED))
|
||||
return -ENODEV;
|
||||
|
||||
/* We do our own plumbing to avoid leaking special cases for whacko
|
||||
ancient hardware into the core code. There are two issues to
|
||||
worry about. #1 The chip is a bridge so if in legacy mode and
|
||||
without BARs set fools the setup. #2 If you pci_disable_device
|
||||
the MPIIX your box goes castors up */
|
||||
|
||||
INIT_LIST_HEAD(&probe[0].node);
|
||||
probe[0].dev = pci_dev_to_dev(dev);
|
||||
probe[0].port_ops = &mpiix_port_ops;
|
||||
probe[0].sht = &mpiix_sht;
|
||||
probe[0].pio_mask = 0x1F;
|
||||
probe[0].irq = 14;
|
||||
probe[0].irq_flags = SA_SHIRQ;
|
||||
probe[0].port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
|
||||
probe[0].n_ports = 1;
|
||||
probe[0].port[0].cmd_addr = 0x1F0;
|
||||
probe[0].port[0].ctl_addr = 0x3F6;
|
||||
probe[0].port[0].altstatus_addr = 0x3F6;
|
||||
|
||||
/* The secondary lurks at different addresses but is otherwise
|
||||
the same beastie */
|
||||
|
||||
INIT_LIST_HEAD(&probe[1].node);
|
||||
probe[1] = probe[0];
|
||||
probe[1].irq = 15;
|
||||
probe[1].port[0].cmd_addr = 0x170;
|
||||
probe[1].port[0].ctl_addr = 0x376;
|
||||
probe[1].port[0].altstatus_addr = 0x376;
|
||||
|
||||
/* Let libata fill in the port details */
|
||||
ata_std_ports(&probe[0].port[0]);
|
||||
ata_std_ports(&probe[1].port[0]);
|
||||
|
||||
/* Now add the port that is active */
|
||||
enabled = (idetim & SECONDARY) ? 1 : 0;
|
||||
|
||||
if (ata_device_add(&probe[enabled]))
|
||||
return 0;
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/**
|
||||
* mpiix_remove_one - device unload
|
||||
* @pdev: PCI device being removed
|
||||
*
|
||||
* Handle an unplug/unload event for a PCI device. Unload the
|
||||
* PCI driver but do not use the default handler as we *MUST NOT*
|
||||
* disable the device as it has other functions.
|
||||
*/
|
||||
|
||||
static void __devexit mpiix_remove_one(struct pci_dev *pdev)
|
||||
{
|
||||
struct device *dev = pci_dev_to_dev(pdev);
|
||||
struct ata_host *host = dev_get_drvdata(dev);
|
||||
|
||||
ata_host_remove(host);
|
||||
dev_set_drvdata(dev, NULL);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static const struct pci_device_id mpiix[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371MX), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver mpiix_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = mpiix,
|
||||
.probe = mpiix_init_one,
|
||||
.remove = mpiix_remove_one
|
||||
};
|
||||
|
||||
static int __init mpiix_init(void)
|
||||
{
|
||||
return pci_register_driver(&mpiix_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit mpiix_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&mpiix_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Intel MPIIX");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, mpiix);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(mpiix_init);
|
||||
module_exit(mpiix_exit);
|
||||
175
drivers/ata/pata_netcell.c
Normal file
175
drivers/ata/pata_netcell.c
Normal file
|
|
@ -0,0 +1,175 @@
|
|||
/*
|
||||
* pata_netcell.c - Netcell PATA driver
|
||||
*
|
||||
* (c) 2006 Red Hat <alan@redhat.com>
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/device.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/ata.h>
|
||||
|
||||
#define DRV_NAME "pata_netcell"
|
||||
#define DRV_VERSION "0.1.5"
|
||||
|
||||
/**
|
||||
* netcell_probe_init - check for 40/80 pin
|
||||
* @ap: Port
|
||||
*
|
||||
* Cables are handled by the RAID controller. Report 80 pin.
|
||||
*/
|
||||
|
||||
static int netcell_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* netcell_probe_reset - Probe specified port on PATA host controller
|
||||
* @ap: Port to probe
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void netcell_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, netcell_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/* No PIO or DMA methods needed for this device */
|
||||
|
||||
static struct scsi_host_template netcell_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
/* Special handling needed if you have sector or LBA48 limits */
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
/* Use standard CHS mapping rules */
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations netcell_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
|
||||
/* Task file is PCI ATA format, use helpers */
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = netcell_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
/* BMDMA handling is PCI ATA format, use helpers */
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
/* Timeout handling. Special recovery hooks here */
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
/* Generic PATA PCI ATA helpers */
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* netcell_init_one - Register Netcell ATA PCI device with kernel services
|
||||
* @pdev: PCI device to register
|
||||
* @ent: Entry in netcell_pci_tbl matching with @pdev
|
||||
*
|
||||
* Called from kernel PCI layer.
|
||||
*
|
||||
* LOCKING:
|
||||
* Inherited from PCI layer (may sleep).
|
||||
*
|
||||
* RETURNS:
|
||||
* Zero on success, or -ERRNO value.
|
||||
*/
|
||||
|
||||
static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
{
|
||||
static int printed_version;
|
||||
static struct ata_port_info info = {
|
||||
.sht = &netcell_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
/* Actually we don't really care about these as the
|
||||
firmware deals with it */
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma0-2 */
|
||||
.udma_mask = 0x3f, /* UDMA 133 */
|
||||
.port_ops = &netcell_ops,
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev,
|
||||
"version " DRV_VERSION "\n");
|
||||
|
||||
/* Any chip specific setup/optimisation/messages here */
|
||||
ata_pci_clear_simplex(pdev);
|
||||
|
||||
/* And let the library code do the work */
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id netcell_pci_tbl[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_NETCELL, PCI_DEVICE_ID_REVOLUTION), },
|
||||
{ } /* terminate list */
|
||||
};
|
||||
|
||||
static struct pci_driver netcell_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = netcell_pci_tbl,
|
||||
.probe = netcell_init_one,
|
||||
.remove = ata_pci_remove_one,
|
||||
};
|
||||
|
||||
static int __init netcell_init(void)
|
||||
{
|
||||
return pci_register_driver(&netcell_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit netcell_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&netcell_pci_driver);
|
||||
}
|
||||
|
||||
module_init(netcell_init);
|
||||
module_exit(netcell_exit);
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("SCSI low-level driver for Netcell PATA RAID");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, netcell_pci_tbl);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
236
drivers/ata/pata_ns87410.c
Normal file
236
drivers/ata/pata_ns87410.c
Normal file
|
|
@ -0,0 +1,236 @@
|
|||
/*
|
||||
* pata_ns87410.c - National Semiconductor 87410 PATA for new ATA layer
|
||||
* (C) 2006 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; see the file COPYING. If not, write to
|
||||
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_ns87410"
|
||||
#define DRV_VERSION "0.4.2"
|
||||
|
||||
/**
|
||||
* ns87410_pre_reset - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generic probe init
|
||||
*/
|
||||
|
||||
static int ns87410_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static const struct pci_bits ns87410_enable_bits[] = {
|
||||
{ 0x43, 1, 0x08, 0x08 },
|
||||
{ 0x47, 1, 0x08, 0x08 }
|
||||
};
|
||||
|
||||
if (!pci_test_config_bits(pdev, &ns87410_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* ns87410_error_handler - probe reset
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform the ATA probe and bus reset sequence plus specific handling
|
||||
* for this hardware. The MPIIX has the enable bits in a different place
|
||||
* to PIIX4 and friends. As a pure PIO device it has no cable detect
|
||||
*/
|
||||
|
||||
static void ns87410_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, ns87410_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* ns87410_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program timing data. This is kept per channel not per device,
|
||||
* and only affects the data port.
|
||||
*/
|
||||
|
||||
static void ns87410_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int port = 0x40 + 4 * ap->port_no;
|
||||
u8 idetcr, idefr;
|
||||
struct ata_timing at;
|
||||
|
||||
static const u8 activebits[15] = {
|
||||
0, 1, 2, 3, 4,
|
||||
5, 5, 6, 6, 6,
|
||||
6, 7, 7, 7, 7
|
||||
};
|
||||
|
||||
static const u8 recoverbits[12] = {
|
||||
0, 1, 2, 3, 4, 5, 6, 6, 7, 7, 7, 7
|
||||
};
|
||||
|
||||
pci_read_config_byte(pdev, port + 3, &idefr);
|
||||
|
||||
if (ata_pio_need_iordy(adev))
|
||||
idefr |= 0x04; /* IORDY enable */
|
||||
else
|
||||
idefr &= ~0x04;
|
||||
|
||||
if (ata_timing_compute(adev, adev->pio_mode, &at, 30303, 1) < 0) {
|
||||
dev_printk(KERN_ERR, &pdev->dev, "unknown mode %d.\n", adev->pio_mode);
|
||||
return;
|
||||
}
|
||||
|
||||
at.active = FIT(at.active, 2, 16) - 2;
|
||||
at.setup = FIT(at.setup, 1, 4) - 1;
|
||||
at.recover = FIT(at.recover, 1, 12) - 1;
|
||||
|
||||
idetcr = (at.setup << 6) | (recoverbits[at.recover] << 3) | activebits[at.active];
|
||||
|
||||
pci_write_config_byte(pdev, port, idetcr);
|
||||
pci_write_config_byte(pdev, port + 3, idefr);
|
||||
/* We use ap->private_data as a pointer to the device currently
|
||||
loaded for timing */
|
||||
ap->private_data = adev;
|
||||
}
|
||||
|
||||
/**
|
||||
* ns87410_qc_issue_prot - command issue
|
||||
* @qc: command pending
|
||||
*
|
||||
* Called when the libata layer is about to issue a command. We wrap
|
||||
* this interface so that we can load the correct ATA timings if
|
||||
* neccessary.
|
||||
*/
|
||||
|
||||
static unsigned int ns87410_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
|
||||
/* If modes have been configured and the channel data is not loaded
|
||||
then load it. We have to check if pio_mode is set as the core code
|
||||
does not set adev->pio_mode to XFER_PIO_0 while probing as would be
|
||||
logical */
|
||||
|
||||
if (adev->pio_mode && adev != ap->private_data)
|
||||
ns87410_set_piomode(ap, adev);
|
||||
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
static struct scsi_host_template ns87410_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations ns87410_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = ns87410_set_piomode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ns87410_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ns87410_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int ns87410_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &ns87410_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x0F,
|
||||
.port_ops = &ns87410_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = {&info, &info};
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id ns87410[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_87410), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver ns87410_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = ns87410,
|
||||
.probe = ns87410_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init ns87410_init(void)
|
||||
{
|
||||
return pci_register_driver(&ns87410_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit ns87410_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&ns87410_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Nat Semi 87410");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, ns87410);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(ns87410_init);
|
||||
module_exit(ns87410_exit);
|
||||
339
drivers/ata/pata_oldpiix.c
Normal file
339
drivers/ata/pata_oldpiix.c
Normal file
|
|
@ -0,0 +1,339 @@
|
|||
/*
|
||||
* pata_oldpiix.c - Intel PATA/SATA controllers
|
||||
*
|
||||
* (C) 2005 Red Hat <alan@redhat.com>
|
||||
*
|
||||
* Some parts based on ata_piix.c by Jeff Garzik and others.
|
||||
*
|
||||
* Early PIIX differs significantly from the later PIIX as it lacks
|
||||
* SITRE and the slave timing registers. This means that you have to
|
||||
* set timing per channel, or be clever. Libata tells us whenever it
|
||||
* does drive selection and we use this to reload the timings.
|
||||
*
|
||||
* Because of these behaviour differences PIIX gets its own driver module.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/device.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/ata.h>
|
||||
|
||||
#define DRV_NAME "pata_oldpiix"
|
||||
#define DRV_VERSION "0.5.1"
|
||||
|
||||
/**
|
||||
* oldpiix_pre_reset - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generic probe init
|
||||
*/
|
||||
|
||||
static int oldpiix_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static const struct pci_bits oldpiix_enable_bits[] = {
|
||||
{ 0x41U, 1U, 0x80UL, 0x80UL }, /* port 0 */
|
||||
{ 0x43U, 1U, 0x80UL, 0x80UL }, /* port 1 */
|
||||
};
|
||||
|
||||
if (!pci_test_config_bits(pdev, &oldpiix_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* oldpiix_pata_error_handler - Probe specified port on PATA host controller
|
||||
* @ap: Port to probe
|
||||
* @classes:
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void oldpiix_pata_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, oldpiix_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* oldpiix_set_piomode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: um
|
||||
*
|
||||
* Set PIO mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void oldpiix_set_piomode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned int pio = adev->pio_mode - XFER_PIO_0;
|
||||
struct pci_dev *dev = to_pci_dev(ap->host->dev);
|
||||
unsigned int idetm_port= ap->port_no ? 0x42 : 0x40;
|
||||
u16 idetm_data;
|
||||
int control = 0;
|
||||
|
||||
/*
|
||||
* See Intel Document 298600-004 for the timing programing rules
|
||||
* for PIIX/ICH. Note that the early PIIX does not have the slave
|
||||
* timing port at 0x44.
|
||||
*/
|
||||
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 },
|
||||
{ 0, 0 },
|
||||
{ 1, 0 },
|
||||
{ 2, 1 },
|
||||
{ 2, 3 }, };
|
||||
|
||||
if (pio > 2)
|
||||
control |= 1; /* TIME1 enable */
|
||||
if (ata_pio_need_iordy(adev))
|
||||
control |= 2; /* IE IORDY */
|
||||
|
||||
/* Intel specifies that the PPE functionality is for disk only */
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
control |= 4; /* PPE enable */
|
||||
|
||||
pci_read_config_word(dev, idetm_port, &idetm_data);
|
||||
|
||||
/* Enable PPE, IE and TIME as appropriate. Clear the other
|
||||
drive timing bits */
|
||||
if (adev->devno == 0) {
|
||||
idetm_data &= 0xCCE0;
|
||||
idetm_data |= control;
|
||||
} else {
|
||||
idetm_data &= 0xCC0E;
|
||||
idetm_data |= (control << 4);
|
||||
}
|
||||
idetm_data |= (timings[pio][0] << 12) |
|
||||
(timings[pio][1] << 8);
|
||||
pci_write_config_word(dev, idetm_port, idetm_data);
|
||||
|
||||
/* Track which port is configured */
|
||||
ap->private_data = adev;
|
||||
}
|
||||
|
||||
/**
|
||||
* oldpiix_set_dmamode - Initialize host controller PATA DMA timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: Device to program
|
||||
* @isich: True if the device is an ICH and has IOCFG registers
|
||||
*
|
||||
* Set MWDMA mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void oldpiix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *dev = to_pci_dev(ap->host->dev);
|
||||
u8 idetm_port = ap->port_no ? 0x42 : 0x40;
|
||||
u16 idetm_data;
|
||||
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 },
|
||||
{ 0, 0 },
|
||||
{ 1, 0 },
|
||||
{ 2, 1 },
|
||||
{ 2, 3 }, };
|
||||
|
||||
/*
|
||||
* MWDMA is driven by the PIO timings. We must also enable
|
||||
* IORDY unconditionally along with TIME1. PPE has already
|
||||
* been set when the PIO timing was set.
|
||||
*/
|
||||
|
||||
unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
|
||||
unsigned int control;
|
||||
const unsigned int needed_pio[3] = {
|
||||
XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
|
||||
};
|
||||
int pio = needed_pio[mwdma] - XFER_PIO_0;
|
||||
|
||||
pci_read_config_word(dev, idetm_port, &idetm_data);
|
||||
|
||||
control = 3; /* IORDY|TIME0 */
|
||||
/* Intel specifies that the PPE functionality is for disk only */
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
control |= 4; /* PPE enable */
|
||||
|
||||
/* If the drive MWDMA is faster than it can do PIO then
|
||||
we must force PIO into PIO0 */
|
||||
|
||||
if (adev->pio_mode < needed_pio[mwdma])
|
||||
/* Enable DMA timing only */
|
||||
control |= 8; /* PIO cycles in PIO0 */
|
||||
|
||||
/* Mask out the relevant control and timing bits we will load. Also
|
||||
clear the other drive TIME register as a precaution */
|
||||
if (adev->devno == 0) {
|
||||
idetm_data &= 0xCCE0;
|
||||
idetm_data |= control;
|
||||
} else {
|
||||
idetm_data &= 0xCC0E;
|
||||
idetm_data |= (control << 4);
|
||||
}
|
||||
idetm_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8);
|
||||
pci_write_config_word(dev, idetm_port, idetm_data);
|
||||
|
||||
/* Track which port is configured */
|
||||
ap->private_data = adev;
|
||||
}
|
||||
|
||||
/**
|
||||
* oldpiix_qc_issue_prot - command issue
|
||||
* @qc: command pending
|
||||
*
|
||||
* Called when the libata layer is about to issue a command. We wrap
|
||||
* this interface so that we can load the correct ATA timings if
|
||||
* neccessary. Our logic also clears TIME0/TIME1 for the other device so
|
||||
* that, even if we get this wrong, cycles to the other device will
|
||||
* be made PIO0.
|
||||
*/
|
||||
|
||||
static unsigned int oldpiix_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
|
||||
if (adev != ap->private_data) {
|
||||
if (adev->dma_mode)
|
||||
oldpiix_set_dmamode(ap, adev);
|
||||
else if (adev->pio_mode)
|
||||
oldpiix_set_piomode(ap, adev);
|
||||
}
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
|
||||
static struct scsi_host_template oldpiix_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations oldpiix_pata_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = oldpiix_set_piomode,
|
||||
.set_dmamode = oldpiix_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = oldpiix_pata_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = oldpiix_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* oldpiix_init_one - Register PIIX ATA PCI device with kernel services
|
||||
* @pdev: PCI device to register
|
||||
* @ent: Entry in oldpiix_pci_tbl matching with @pdev
|
||||
*
|
||||
* Called from kernel PCI layer. We probe for combined mode (sigh),
|
||||
* and then hand over control to libata, for it to do the rest.
|
||||
*
|
||||
* LOCKING:
|
||||
* Inherited from PCI layer (may sleep).
|
||||
*
|
||||
* RETURNS:
|
||||
* Zero on success, or -ERRNO value.
|
||||
*/
|
||||
|
||||
static int oldpiix_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
{
|
||||
static int printed_version;
|
||||
static struct ata_port_info info = {
|
||||
.sht = &oldpiix_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma1-2 */
|
||||
.port_ops = &oldpiix_pata_ops,
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev,
|
||||
"version " DRV_VERSION "\n");
|
||||
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id oldpiix_pci_tbl[] = {
|
||||
{ PCI_DEVICE(0x8086, 0x1230), },
|
||||
{ } /* terminate list */
|
||||
};
|
||||
|
||||
static struct pci_driver oldpiix_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = oldpiix_pci_tbl,
|
||||
.probe = oldpiix_init_one,
|
||||
.remove = ata_pci_remove_one,
|
||||
};
|
||||
|
||||
static int __init oldpiix_init(void)
|
||||
{
|
||||
return pci_register_driver(&oldpiix_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit oldpiix_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&oldpiix_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
module_init(oldpiix_init);
|
||||
module_exit(oldpiix_exit);
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("SCSI low-level driver for early PIIX series controllers");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, oldpiix_pci_tbl);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
292
drivers/ata/pata_opti.c
Normal file
292
drivers/ata/pata_opti.c
Normal file
|
|
@ -0,0 +1,292 @@
|
|||
/*
|
||||
* pata_opti.c - ATI PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Based on
|
||||
* linux/drivers/ide/pci/opti621.c Version 0.7 Sept 10, 2002
|
||||
*
|
||||
* Copyright (C) 1996-1998 Linus Torvalds & authors (see below)
|
||||
*
|
||||
* Authors:
|
||||
* Jaromir Koutek <miri@punknet.cz>,
|
||||
* Jan Harkes <jaharkes@cwi.nl>,
|
||||
* Mark Lord <mlord@pobox.com>
|
||||
* Some parts of code are from ali14xx.c and from rz1000.c.
|
||||
*
|
||||
* Also consulted the FreeBSD prototype driver by Kevin Day to try
|
||||
* and resolve some confusions. Further documentation can be found in
|
||||
* Ralf Brown's interrupt list
|
||||
*
|
||||
* If you have other variants of the Opti range (Viper/Vendetta) please
|
||||
* try this driver with those PCI idents and report back. For the later
|
||||
* chips see the pata_optidma driver
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_opti"
|
||||
#define DRV_VERSION "0.2.4"
|
||||
|
||||
enum {
|
||||
READ_REG = 0, /* index of Read cycle timing register */
|
||||
WRITE_REG = 1, /* index of Write cycle timing register */
|
||||
CNTRL_REG = 3, /* index of Control register */
|
||||
STRAP_REG = 5, /* index of Strap register */
|
||||
MISC_REG = 6 /* index of Miscellaneous register */
|
||||
};
|
||||
|
||||
/**
|
||||
* opti_pre_reset - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generic probe init
|
||||
*/
|
||||
|
||||
static int opti_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static const struct pci_bits opti_enable_bits[] = {
|
||||
{ 0x45, 1, 0x80, 0x00 },
|
||||
{ 0x40, 1, 0x08, 0x00 }
|
||||
};
|
||||
|
||||
if (!pci_test_config_bits(pdev, &opti_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* opti_probe_reset - probe reset
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform the ATA probe and bus reset sequence plus specific handling
|
||||
* for this hardware. The Opti needs little handling - we have no UDMA66
|
||||
* capability that needs cable detection. All we must do is check the port
|
||||
* is enabled.
|
||||
*/
|
||||
|
||||
static void opti_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, opti_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* opti_write_reg - control register setup
|
||||
* @ap: ATA port
|
||||
* @value: value
|
||||
* @reg: control register number
|
||||
*
|
||||
* The Opti uses magic 'trapdoor' register accesses to do configuration
|
||||
* rather than using PCI space as other controllers do. The double inw
|
||||
* on the error register activates configuration mode. We can then write
|
||||
* the control register
|
||||
*/
|
||||
|
||||
static void opti_write_reg(struct ata_port *ap, u8 val, int reg)
|
||||
{
|
||||
unsigned long regio = ap->ioaddr.cmd_addr;
|
||||
|
||||
/* These 3 unlock the control register access */
|
||||
inw(regio + 1);
|
||||
inw(regio + 1);
|
||||
outb(3, regio + 2);
|
||||
|
||||
/* Do the I/O */
|
||||
outb(val, regio + reg);
|
||||
|
||||
/* Relock */
|
||||
outb(0x83, regio + 2);
|
||||
}
|
||||
|
||||
#if 0
|
||||
/**
|
||||
* opti_read_reg - control register read
|
||||
* @ap: ATA port
|
||||
* @reg: control register number
|
||||
*
|
||||
* The Opti uses magic 'trapdoor' register accesses to do configuration
|
||||
* rather than using PCI space as other controllers do. The double inw
|
||||
* on the error register activates configuration mode. We can then read
|
||||
* the control register
|
||||
*/
|
||||
|
||||
static u8 opti_read_reg(struct ata_port *ap, int reg)
|
||||
{
|
||||
unsigned long regio = ap->ioaddr.cmd_addr;
|
||||
u8 ret;
|
||||
inw(regio + 1);
|
||||
inw(regio + 1);
|
||||
outb(3, regio + 2);
|
||||
ret = inb(regio + reg);
|
||||
outb(0x83, regio + 2);
|
||||
}
|
||||
#endif
|
||||
|
||||
/**
|
||||
* opti_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the PIO mode setup. Timing numbers are taken from
|
||||
* the FreeBSD driver then pre computed to keep the code clean. There
|
||||
* are two tables depending on the hardware clock speed.
|
||||
*/
|
||||
|
||||
static void opti_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
int clock;
|
||||
int pio = adev->pio_mode - XFER_PIO_0;
|
||||
unsigned long regio = ap->ioaddr.cmd_addr;
|
||||
u8 addr;
|
||||
|
||||
/* Address table precomputed with prefetch off and a DCLK of 2 */
|
||||
static const u8 addr_timing[2][5] = {
|
||||
{ 0x30, 0x20, 0x20, 0x10, 0x10 },
|
||||
{ 0x20, 0x20, 0x10, 0x10, 0x10 }
|
||||
};
|
||||
static const u8 data_rec_timing[2][5] = {
|
||||
{ 0x6B, 0x56, 0x42, 0x32, 0x31 },
|
||||
{ 0x58, 0x44, 0x32, 0x22, 0x21 }
|
||||
};
|
||||
|
||||
outb(0xff, regio + 5);
|
||||
clock = inw(regio + 5) & 1;
|
||||
|
||||
/*
|
||||
* As with many controllers the address setup time is shared
|
||||
* and must suit both devices if present.
|
||||
*/
|
||||
|
||||
addr = addr_timing[clock][pio];
|
||||
if (pair) {
|
||||
/* Hardware constraint */
|
||||
u8 pair_addr = addr_timing[clock][pair->pio_mode - XFER_PIO_0];
|
||||
if (pair_addr > addr)
|
||||
addr = pair_addr;
|
||||
}
|
||||
|
||||
/* Commence primary programming sequence */
|
||||
opti_write_reg(ap, adev->devno, MISC_REG);
|
||||
opti_write_reg(ap, data_rec_timing[clock][pio], READ_REG);
|
||||
opti_write_reg(ap, data_rec_timing[clock][pio], WRITE_REG);
|
||||
opti_write_reg(ap, addr, MISC_REG);
|
||||
|
||||
/* Programming sequence complete, override strapping */
|
||||
opti_write_reg(ap, 0x85, CNTRL_REG);
|
||||
}
|
||||
|
||||
static struct scsi_host_template opti_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations opti_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = opti_set_piomode,
|
||||
/* .set_dmamode = opti_set_dmamode, */
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = opti_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int opti_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &opti_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.port_ops = &opti_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
static int printed_version;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
|
||||
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id opti[] = {
|
||||
{ PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C621, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
|
||||
{ PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C825, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver opti_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = opti,
|
||||
.probe = opti_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init opti_init(void)
|
||||
{
|
||||
return pci_register_driver(&opti_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit opti_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&opti_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Opti 621/621X");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, opti);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(opti_init);
|
||||
module_exit(opti_exit);
|
||||
547
drivers/ata/pata_optidma.c
Normal file
547
drivers/ata/pata_optidma.c
Normal file
|
|
@ -0,0 +1,547 @@
|
|||
/*
|
||||
* pata_optidma.c - Opti DMA PATA for new ATA layer
|
||||
* (C) 2006 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* The Opti DMA controllers are related to the older PIO PCI controllers
|
||||
* and indeed the VLB ones. The main differences are that the timing
|
||||
* numbers are now based off PCI clocks not VLB and differ, and that
|
||||
* MWDMA is supported.
|
||||
*
|
||||
* This driver should support Viper-N+, FireStar, FireStar Plus.
|
||||
*
|
||||
* These devices support virtual DMA for read (aka the CS5520). Later
|
||||
* chips support UDMA33, but only if the rest of the board logic does,
|
||||
* so you have to get this right. We don't support the virtual DMA
|
||||
* but we do handle UDMA.
|
||||
*
|
||||
* Bits that are worth knowing
|
||||
* Most control registers are shadowed into I/O registers
|
||||
* 0x1F5 bit 0 tells you if the PCI/VLB clock is 33 or 25Mhz
|
||||
* Virtual DMA registers *move* between rev 0x02 and rev 0x10
|
||||
* UDMA requires a 66MHz FSB
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_optidma"
|
||||
#define DRV_VERSION "0.2.1"
|
||||
|
||||
enum {
|
||||
READ_REG = 0, /* index of Read cycle timing register */
|
||||
WRITE_REG = 1, /* index of Write cycle timing register */
|
||||
CNTRL_REG = 3, /* index of Control register */
|
||||
STRAP_REG = 5, /* index of Strap register */
|
||||
MISC_REG = 6 /* index of Miscellaneous register */
|
||||
};
|
||||
|
||||
static int pci_clock; /* 0 = 33 1 = 25 */
|
||||
|
||||
/**
|
||||
* optidma_pre_reset - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generic probe init
|
||||
*/
|
||||
|
||||
static int optidma_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static const struct pci_bits optidma_enable_bits = {
|
||||
0x40, 1, 0x08, 0x00
|
||||
};
|
||||
|
||||
if (ap->port_no && !pci_test_config_bits(pdev, &optidma_enable_bits)) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* optidma_probe_reset - probe reset
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform the ATA probe and bus reset sequence plus specific handling
|
||||
* for this hardware. The Opti needs little handling - we have no UDMA66
|
||||
* capability that needs cable detection. All we must do is check the port
|
||||
* is enabled.
|
||||
*/
|
||||
|
||||
static void optidma_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, optidma_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* optidma_unlock - unlock control registers
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Unlock the control register block for this adapter. Registers must not
|
||||
* be unlocked in a situation where libata might look at them.
|
||||
*/
|
||||
|
||||
static void optidma_unlock(struct ata_port *ap)
|
||||
{
|
||||
unsigned long regio = ap->ioaddr.cmd_addr;
|
||||
|
||||
/* These 3 unlock the control register access */
|
||||
inw(regio + 1);
|
||||
inw(regio + 1);
|
||||
outb(3, regio + 2);
|
||||
}
|
||||
|
||||
/**
|
||||
* optidma_lock - issue temporary relock
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Re-lock the configuration register settings.
|
||||
*/
|
||||
|
||||
static void optidma_lock(struct ata_port *ap)
|
||||
{
|
||||
unsigned long regio = ap->ioaddr.cmd_addr;
|
||||
|
||||
/* Relock */
|
||||
outb(0x83, regio + 2);
|
||||
}
|
||||
|
||||
/**
|
||||
* optidma_set_mode - set mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
* @mode: Mode to set
|
||||
*
|
||||
* Called to do the DMA or PIO mode setup. Timing numbers are all
|
||||
* pre computed to keep the code clean. There are two tables depending
|
||||
* on the hardware clock speed.
|
||||
*
|
||||
* WARNING: While we do this the IDE registers vanish. If we take an
|
||||
* IRQ here we depend on the host set locking to avoid catastrophe.
|
||||
*/
|
||||
|
||||
static void optidma_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mode)
|
||||
{
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
int pio = adev->pio_mode - XFER_PIO_0;
|
||||
int dma = adev->dma_mode - XFER_MW_DMA_0;
|
||||
unsigned long regio = ap->ioaddr.cmd_addr;
|
||||
u8 addr;
|
||||
|
||||
/* Address table precomputed with a DCLK of 2 */
|
||||
static const u8 addr_timing[2][5] = {
|
||||
{ 0x30, 0x20, 0x20, 0x10, 0x10 },
|
||||
{ 0x20, 0x20, 0x10, 0x10, 0x10 }
|
||||
};
|
||||
static const u8 data_rec_timing[2][5] = {
|
||||
{ 0x59, 0x46, 0x30, 0x20, 0x20 },
|
||||
{ 0x46, 0x32, 0x20, 0x20, 0x10 }
|
||||
};
|
||||
static const u8 dma_data_rec_timing[2][3] = {
|
||||
{ 0x76, 0x20, 0x20 },
|
||||
{ 0x54, 0x20, 0x10 }
|
||||
};
|
||||
|
||||
/* Switch from IDE to control mode */
|
||||
optidma_unlock(ap);
|
||||
|
||||
|
||||
/*
|
||||
* As with many controllers the address setup time is shared
|
||||
* and must suit both devices if present. FIXME: Check if we
|
||||
* need to look at slowest of PIO/DMA mode of either device
|
||||
*/
|
||||
|
||||
if (mode >= XFER_MW_DMA_0)
|
||||
addr = 0;
|
||||
else
|
||||
addr = addr_timing[pci_clock][pio];
|
||||
|
||||
if (pair) {
|
||||
u8 pair_addr;
|
||||
/* Hardware constraint */
|
||||
if (pair->dma_mode)
|
||||
pair_addr = 0;
|
||||
else
|
||||
pair_addr = addr_timing[pci_clock][pair->pio_mode - XFER_PIO_0];
|
||||
if (pair_addr > addr)
|
||||
addr = pair_addr;
|
||||
}
|
||||
|
||||
/* Commence primary programming sequence */
|
||||
/* First we load the device number into the timing select */
|
||||
outb(adev->devno, regio + MISC_REG);
|
||||
/* Now we load the data timings into read data/write data */
|
||||
if (mode < XFER_MW_DMA_0) {
|
||||
outb(data_rec_timing[pci_clock][pio], regio + READ_REG);
|
||||
outb(data_rec_timing[pci_clock][pio], regio + WRITE_REG);
|
||||
} else if (mode < XFER_UDMA_0) {
|
||||
outb(dma_data_rec_timing[pci_clock][dma], regio + READ_REG);
|
||||
outb(dma_data_rec_timing[pci_clock][dma], regio + WRITE_REG);
|
||||
}
|
||||
/* Finally we load the address setup into the misc register */
|
||||
outb(addr | adev->devno, regio + MISC_REG);
|
||||
|
||||
/* Programming sequence complete, timing 0 dev 0, timing 1 dev 1 */
|
||||
outb(0x85, regio + CNTRL_REG);
|
||||
|
||||
/* Switch back to IDE mode */
|
||||
optidma_lock(ap);
|
||||
|
||||
/* Note: at this point our programming is incomplete. We are
|
||||
not supposed to program PCI 0x43 "things we hacked onto the chip"
|
||||
until we've done both sets of PIO/DMA timings */
|
||||
}
|
||||
|
||||
/**
|
||||
* optiplus_set_mode - DMA setup for Firestar Plus
|
||||
* @ap: ATA port
|
||||
* @adev: device
|
||||
* @mode: desired mode
|
||||
*
|
||||
* The Firestar plus has additional UDMA functionality for UDMA0-2 and
|
||||
* requires we do some additional work. Because the base work we must do
|
||||
* is mostly shared we wrap the Firestar setup functionality in this
|
||||
* one
|
||||
*/
|
||||
|
||||
static void optiplus_set_mode(struct ata_port *ap, struct ata_device *adev, u8 mode)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u8 udcfg;
|
||||
u8 udslave;
|
||||
int dev2 = 2 * adev->devno;
|
||||
int unit = 2 * ap->port_no + adev->devno;
|
||||
int udma = mode - XFER_UDMA_0;
|
||||
|
||||
pci_read_config_byte(pdev, 0x44, &udcfg);
|
||||
if (mode <= XFER_UDMA_0) {
|
||||
udcfg &= ~(1 << unit);
|
||||
optidma_set_mode(ap, adev, adev->dma_mode);
|
||||
} else {
|
||||
udcfg |= (1 << unit);
|
||||
if (ap->port_no) {
|
||||
pci_read_config_byte(pdev, 0x45, &udslave);
|
||||
udslave &= ~(0x03 << dev2);
|
||||
udslave |= (udma << dev2);
|
||||
pci_write_config_byte(pdev, 0x45, udslave);
|
||||
} else {
|
||||
udcfg &= ~(0x30 << dev2);
|
||||
udcfg |= (udma << dev2);
|
||||
}
|
||||
}
|
||||
pci_write_config_byte(pdev, 0x44, udcfg);
|
||||
}
|
||||
|
||||
/**
|
||||
* optidma_set_pio_mode - PIO setup callback
|
||||
* @ap: ATA port
|
||||
* @adev: Device
|
||||
*
|
||||
* The libata core provides separate functions for handling PIO and
|
||||
* DMA programming. The architecture of the Firestar makes it easier
|
||||
* for us to have a common function so we provide wrappers
|
||||
*/
|
||||
|
||||
static void optidma_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
optidma_set_mode(ap, adev, adev->pio_mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* optidma_set_dma_mode - DMA setup callback
|
||||
* @ap: ATA port
|
||||
* @adev: Device
|
||||
*
|
||||
* The libata core provides separate functions for handling PIO and
|
||||
* DMA programming. The architecture of the Firestar makes it easier
|
||||
* for us to have a common function so we provide wrappers
|
||||
*/
|
||||
|
||||
static void optidma_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
optidma_set_mode(ap, adev, adev->dma_mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* optiplus_set_pio_mode - PIO setup callback
|
||||
* @ap: ATA port
|
||||
* @adev: Device
|
||||
*
|
||||
* The libata core provides separate functions for handling PIO and
|
||||
* DMA programming. The architecture of the Firestar makes it easier
|
||||
* for us to have a common function so we provide wrappers
|
||||
*/
|
||||
|
||||
static void optiplus_set_pio_mode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
optiplus_set_mode(ap, adev, adev->pio_mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* optiplus_set_dma_mode - DMA setup callback
|
||||
* @ap: ATA port
|
||||
* @adev: Device
|
||||
*
|
||||
* The libata core provides separate functions for handling PIO and
|
||||
* DMA programming. The architecture of the Firestar makes it easier
|
||||
* for us to have a common function so we provide wrappers
|
||||
*/
|
||||
|
||||
static void optiplus_set_dma_mode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
optiplus_set_mode(ap, adev, adev->dma_mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* optidma_make_bits - PCI setup helper
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Turn the ATA device setup into PCI configuration bits
|
||||
* for register 0x43 and return the two bits needed.
|
||||
*/
|
||||
|
||||
static u8 optidma_make_bits43(struct ata_device *adev)
|
||||
{
|
||||
static const u8 bits43[5] = {
|
||||
0, 0, 0, 1, 2
|
||||
};
|
||||
if (!ata_dev_enabled(adev))
|
||||
return 0;
|
||||
if (adev->dma_mode)
|
||||
return adev->dma_mode - XFER_MW_DMA_0;
|
||||
return bits43[adev->pio_mode - XFER_PIO_0];
|
||||
}
|
||||
|
||||
/**
|
||||
* optidma_post_set_mode - finalize PCI setup
|
||||
* @ap: port to set up
|
||||
*
|
||||
* Finalise the configuration by writing the nibble of extra bits
|
||||
* of data into the chip.
|
||||
*/
|
||||
|
||||
static void optidma_post_set_mode(struct ata_port *ap)
|
||||
{
|
||||
u8 r;
|
||||
int nybble = 4 * ap->port_no;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
pci_read_config_byte(pdev, 0x43, &r);
|
||||
|
||||
r &= (0x0F << nybble);
|
||||
r |= (optidma_make_bits43(&ap->device[0]) +
|
||||
(optidma_make_bits43(&ap->device[0]) << 2)) << nybble;
|
||||
|
||||
pci_write_config_byte(pdev, 0x43, r);
|
||||
}
|
||||
|
||||
static struct scsi_host_template optidma_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations optidma_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = optidma_set_pio_mode,
|
||||
.set_dmamode = optidma_set_dma_mode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
.error_handler = optidma_error_handler,
|
||||
.post_set_mode = optidma_post_set_mode,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations optiplus_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = optiplus_set_pio_mode,
|
||||
.set_dmamode = optiplus_set_dma_mode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
.error_handler = optidma_error_handler,
|
||||
.post_set_mode = optidma_post_set_mode,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* optiplus_with_udma - Look for UDMA capable setup
|
||||
* @pdev; ATA controller
|
||||
*/
|
||||
|
||||
static int optiplus_with_udma(struct pci_dev *pdev)
|
||||
{
|
||||
u8 r;
|
||||
int ret = 0;
|
||||
int ioport = 0x22;
|
||||
struct pci_dev *dev1;
|
||||
|
||||
/* Find function 1 */
|
||||
dev1 = pci_get_device(0x1045, 0xC701, NULL);
|
||||
if(dev1 == NULL)
|
||||
return 0;
|
||||
|
||||
/* Rev must be >= 0x10 */
|
||||
pci_read_config_byte(dev1, 0x08, &r);
|
||||
if (r < 0x10)
|
||||
goto done_nomsg;
|
||||
/* Read the chipset system configuration to check our mode */
|
||||
pci_read_config_byte(dev1, 0x5F, &r);
|
||||
ioport |= (r << 8);
|
||||
outb(0x10, ioport);
|
||||
/* Must be 66Mhz sync */
|
||||
if ((inb(ioport + 2) & 1) == 0)
|
||||
goto done;
|
||||
|
||||
/* Check the ATA arbitration/timing is suitable */
|
||||
pci_read_config_byte(pdev, 0x42, &r);
|
||||
if ((r & 0x36) != 0x36)
|
||||
goto done;
|
||||
pci_read_config_byte(dev1, 0x52, &r);
|
||||
if (r & 0x80) /* IDEDIR disabled */
|
||||
ret = 1;
|
||||
done:
|
||||
printk(KERN_WARNING "UDMA not supported in this configuration.\n");
|
||||
done_nomsg: /* Wrong chip revision */
|
||||
pci_dev_put(dev1);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int optidma_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info_82c700 = {
|
||||
.sht = &optidma_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &optidma_port_ops
|
||||
};
|
||||
static struct ata_port_info info_82c700_udma = {
|
||||
.sht = &optidma_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x07,
|
||||
.port_ops = &optiplus_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2];
|
||||
struct ata_port_info *info = &info_82c700;
|
||||
static int printed_version;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
|
||||
|
||||
/* Fixed location chipset magic */
|
||||
inw(0x1F1);
|
||||
inw(0x1F1);
|
||||
pci_clock = inb(0x1F5) & 1; /* 0 = 33Mhz, 1 = 25Mhz */
|
||||
|
||||
if (optiplus_with_udma(dev))
|
||||
info = &info_82c700_udma;
|
||||
|
||||
port_info[0] = port_info[1] = info;
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id optidma[] = {
|
||||
{ PCI_DEVICE(0x1045, 0xD568), }, /* Opti 82C700 */
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver optidma_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = optidma,
|
||||
.probe = optidma_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init optidma_init(void)
|
||||
{
|
||||
return pci_register_driver(&optidma_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit optidma_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&optidma_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Opti Firestar/Firestar Plus");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, optidma);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(optidma_init);
|
||||
module_exit(optidma_exit);
|
||||
393
drivers/ata/pata_pcmcia.c
Normal file
393
drivers/ata/pata_pcmcia.c
Normal file
|
|
@ -0,0 +1,393 @@
|
|||
/*
|
||||
* pata_pcmcia.c - PCMCIA PATA controller driver.
|
||||
* Copyright 2005-2006 Red Hat Inc <alan@redhat.com>, all rights reserved.
|
||||
* PCMCIA ident update Copyright 2006 Marcin Juszkiewicz
|
||||
* <openembedded@hrw.one.pl>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; see the file COPYING. If not, write to
|
||||
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*
|
||||
* Heavily based upon ide-cs.c
|
||||
* The initial developer of the original code is David A. Hinds
|
||||
* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
|
||||
* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/ata.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#include <pcmcia/cs_types.h>
|
||||
#include <pcmcia/cs.h>
|
||||
#include <pcmcia/cistpl.h>
|
||||
#include <pcmcia/ds.h>
|
||||
#include <pcmcia/cisreg.h>
|
||||
#include <pcmcia/ciscode.h>
|
||||
|
||||
|
||||
#define DRV_NAME "pata_pcmcia"
|
||||
#define DRV_VERSION "0.2.9"
|
||||
|
||||
/*
|
||||
* Private data structure to glue stuff together
|
||||
*/
|
||||
|
||||
struct ata_pcmcia_info {
|
||||
struct pcmcia_device *pdev;
|
||||
int ndev;
|
||||
dev_node_t node;
|
||||
};
|
||||
|
||||
static struct scsi_host_template pcmcia_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations pcmcia_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer_noirq,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
#define CS_CHECK(fn, ret) \
|
||||
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
|
||||
|
||||
/**
|
||||
* pcmcia_init_one - attach a PCMCIA interface
|
||||
* @pdev: pcmcia device
|
||||
*
|
||||
* Register a PCMCIA IDE interface. Such interfaces are PIO 0 and
|
||||
* shared IRQ.
|
||||
*/
|
||||
|
||||
static int pcmcia_init_one(struct pcmcia_device *pdev)
|
||||
{
|
||||
struct ata_probe_ent ae;
|
||||
struct ata_pcmcia_info *info;
|
||||
tuple_t tuple;
|
||||
struct {
|
||||
unsigned short buf[128];
|
||||
cisparse_t parse;
|
||||
config_info_t conf;
|
||||
cistpl_cftable_entry_t dflt;
|
||||
} *stk = NULL;
|
||||
cistpl_cftable_entry_t *cfg;
|
||||
int pass, last_ret = 0, last_fn = 0, is_kme = 0, ret = -ENOMEM;
|
||||
unsigned long io_base, ctl_base;
|
||||
|
||||
info = kzalloc(sizeof(*info), GFP_KERNEL);
|
||||
if (info == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
/* Glue stuff together. FIXME: We may be able to get rid of info with care */
|
||||
info->pdev = pdev;
|
||||
pdev->priv = info;
|
||||
|
||||
/* Set up attributes in order to probe card and get resources */
|
||||
pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
|
||||
pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8;
|
||||
pdev->io.IOAddrLines = 3;
|
||||
pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
|
||||
pdev->irq.IRQInfo1 = IRQ_LEVEL_ID;
|
||||
pdev->conf.Attributes = CONF_ENABLE_IRQ;
|
||||
pdev->conf.IntType = INT_MEMORY_AND_IO;
|
||||
|
||||
/* Allocate resoure probing structures */
|
||||
|
||||
stk = kzalloc(sizeof(*stk), GFP_KERNEL);
|
||||
if (!stk)
|
||||
goto out1;
|
||||
|
||||
cfg = &stk->parse.cftable_entry;
|
||||
|
||||
/* Tuples we are walking */
|
||||
tuple.TupleData = (cisdata_t *)&stk->buf;
|
||||
tuple.TupleOffset = 0;
|
||||
tuple.TupleDataMax = 255;
|
||||
tuple.Attributes = 0;
|
||||
tuple.DesiredTuple = CISTPL_CONFIG;
|
||||
|
||||
CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
|
||||
CS_CHECK(GetTupleData, pcmcia_get_tuple_data(pdev, &tuple));
|
||||
CS_CHECK(ParseTuple, pcmcia_parse_tuple(pdev, &tuple, &stk->parse));
|
||||
pdev->conf.ConfigBase = stk->parse.config.base;
|
||||
pdev->conf.Present = stk->parse.config.rmask[0];
|
||||
|
||||
/* See if we have a manufacturer identifier. Use it to set is_kme for
|
||||
vendor quirks */
|
||||
tuple.DesiredTuple = CISTPL_MANFID;
|
||||
if (!pcmcia_get_first_tuple(pdev, &tuple) && !pcmcia_get_tuple_data(pdev, &tuple) && !pcmcia_parse_tuple(pdev, &tuple, &stk->parse))
|
||||
is_kme = ((stk->parse.manfid.manf == MANFID_KME) && ((stk->parse.manfid.card == PRODID_KME_KXLC005_A) || (stk->parse.manfid.card == PRODID_KME_KXLC005_B)));
|
||||
|
||||
/* Not sure if this is right... look up the current Vcc */
|
||||
CS_CHECK(GetConfigurationInfo, pcmcia_get_configuration_info(pdev, &stk->conf));
|
||||
/* link->conf.Vcc = stk->conf.Vcc; */
|
||||
|
||||
pass = io_base = ctl_base = 0;
|
||||
tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
|
||||
tuple.Attributes = 0;
|
||||
CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
|
||||
|
||||
/* Now munch the resources looking for a suitable set */
|
||||
while (1) {
|
||||
if (pcmcia_get_tuple_data(pdev, &tuple) != 0)
|
||||
goto next_entry;
|
||||
if (pcmcia_parse_tuple(pdev, &tuple, &stk->parse) != 0)
|
||||
goto next_entry;
|
||||
/* Check for matching Vcc, unless we're desperate */
|
||||
if (!pass) {
|
||||
if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
|
||||
if (stk->conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] / 10000)
|
||||
goto next_entry;
|
||||
} else if (stk->dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
|
||||
if (stk->conf.Vcc != stk->dflt.vcc.param[CISTPL_POWER_VNOM] / 10000)
|
||||
goto next_entry;
|
||||
}
|
||||
}
|
||||
|
||||
if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
|
||||
pdev->conf.Vpp = cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
|
||||
else if (stk->dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
|
||||
pdev->conf.Vpp = stk->dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;
|
||||
|
||||
if ((cfg->io.nwin > 0) || (stk->dflt.io.nwin > 0)) {
|
||||
cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &stk->dflt.io;
|
||||
pdev->conf.ConfigIndex = cfg->index;
|
||||
pdev->io.BasePort1 = io->win[0].base;
|
||||
pdev->io.IOAddrLines = io->flags & CISTPL_IO_LINES_MASK;
|
||||
if (!(io->flags & CISTPL_IO_16BIT))
|
||||
pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
|
||||
if (io->nwin == 2) {
|
||||
pdev->io.NumPorts1 = 8;
|
||||
pdev->io.BasePort2 = io->win[1].base;
|
||||
pdev->io.NumPorts2 = (is_kme) ? 2 : 1;
|
||||
if (pcmcia_request_io(pdev, &pdev->io) != 0)
|
||||
goto next_entry;
|
||||
io_base = pdev->io.BasePort1;
|
||||
ctl_base = pdev->io.BasePort2;
|
||||
} else if ((io->nwin == 1) && (io->win[0].len >= 16)) {
|
||||
pdev->io.NumPorts1 = io->win[0].len;
|
||||
pdev->io.NumPorts2 = 0;
|
||||
if (pcmcia_request_io(pdev, &pdev->io) != 0)
|
||||
goto next_entry;
|
||||
io_base = pdev->io.BasePort1;
|
||||
ctl_base = pdev->io.BasePort1 + 0x0e;
|
||||
} else goto next_entry;
|
||||
/* If we've got this far, we're done */
|
||||
break;
|
||||
}
|
||||
next_entry:
|
||||
if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
|
||||
memcpy(&stk->dflt, cfg, sizeof(stk->dflt));
|
||||
if (pass) {
|
||||
CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(pdev, &tuple));
|
||||
} else if (pcmcia_get_next_tuple(pdev, &tuple) != 0) {
|
||||
CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(pdev, &tuple));
|
||||
memset(&stk->dflt, 0, sizeof(stk->dflt));
|
||||
pass++;
|
||||
}
|
||||
}
|
||||
|
||||
CS_CHECK(RequestIRQ, pcmcia_request_irq(pdev, &pdev->irq));
|
||||
CS_CHECK(RequestConfiguration, pcmcia_request_configuration(pdev, &pdev->conf));
|
||||
|
||||
/* Success. Disable the IRQ nIEN line, do quirks */
|
||||
outb(0x02, ctl_base);
|
||||
if (is_kme)
|
||||
outb(0x81, ctl_base + 0x01);
|
||||
|
||||
/* FIXME: Could be more ports at base + 0x10 but we only deal with
|
||||
one right now */
|
||||
if (pdev->io.NumPorts1 >= 0x20)
|
||||
printk(KERN_WARNING DRV_NAME ": second channel not yet supported.\n");
|
||||
|
||||
/*
|
||||
* Having done the PCMCIA plumbing the ATA side is relatively
|
||||
* sane.
|
||||
*/
|
||||
|
||||
memset(&ae, 0, sizeof(struct ata_probe_ent));
|
||||
INIT_LIST_HEAD(&ae.node);
|
||||
ae.dev = &pdev->dev;
|
||||
ae.port_ops = &pcmcia_port_ops;
|
||||
ae.sht = &pcmcia_sht;
|
||||
ae.n_ports = 1;
|
||||
ae.pio_mask = 1; /* ISA so PIO 0 cycles */
|
||||
ae.irq = pdev->irq.AssignedIRQ;
|
||||
ae.irq_flags = SA_SHIRQ;
|
||||
ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
|
||||
ae.port[0].cmd_addr = io_base;
|
||||
ae.port[0].altstatus_addr = ctl_base;
|
||||
ae.port[0].ctl_addr = ctl_base;
|
||||
ata_std_ports(&ae.port[0]);
|
||||
|
||||
if (ata_device_add(&ae) == 0)
|
||||
goto failed;
|
||||
|
||||
info->ndev = 1;
|
||||
kfree(stk);
|
||||
return 0;
|
||||
|
||||
cs_failed:
|
||||
cs_error(pdev, last_fn, last_ret);
|
||||
failed:
|
||||
kfree(stk);
|
||||
info->ndev = 0;
|
||||
pcmcia_disable_device(pdev);
|
||||
out1:
|
||||
kfree(info);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* pcmcia_remove_one - unplug an pcmcia interface
|
||||
* @pdev: pcmcia device
|
||||
*
|
||||
* A PCMCIA ATA device has been unplugged. Perform the needed
|
||||
* cleanup. Also called on module unload for any active devices.
|
||||
*/
|
||||
|
||||
static void pcmcia_remove_one(struct pcmcia_device *pdev)
|
||||
{
|
||||
struct ata_pcmcia_info *info = pdev->priv;
|
||||
struct device *dev = &pdev->dev;
|
||||
|
||||
if (info != NULL) {
|
||||
/* If we have attached the device to the ATA layer, detach it */
|
||||
if (info->ndev) {
|
||||
struct ata_host *host = dev_get_drvdata(dev);
|
||||
ata_host_remove(host);
|
||||
dev_set_drvdata(dev, NULL);
|
||||
}
|
||||
info->ndev = 0;
|
||||
pdev->priv = NULL;
|
||||
}
|
||||
pcmcia_disable_device(pdev);
|
||||
kfree(info);
|
||||
}
|
||||
|
||||
static struct pcmcia_device_id pcmcia_devices[] = {
|
||||
PCMCIA_DEVICE_FUNC_ID(4),
|
||||
PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */
|
||||
PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
|
||||
PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),
|
||||
PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */
|
||||
PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
|
||||
PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */
|
||||
PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */
|
||||
PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001),
|
||||
PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar */
|
||||
PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0),
|
||||
PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74),
|
||||
PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9),
|
||||
PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591),
|
||||
PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728),
|
||||
PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591),
|
||||
PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4),
|
||||
PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde),
|
||||
PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf),
|
||||
PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591),
|
||||
PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728),
|
||||
PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e),
|
||||
PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae),
|
||||
PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178),
|
||||
PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178),
|
||||
PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753),
|
||||
PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b),
|
||||
PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149),
|
||||
PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674),
|
||||
PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b),
|
||||
PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c),
|
||||
PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79),
|
||||
PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591),
|
||||
PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728),
|
||||
PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1),
|
||||
PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883),
|
||||
PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d),
|
||||
PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6),
|
||||
PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003),
|
||||
PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852),
|
||||
PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209),
|
||||
PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e),
|
||||
PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6),
|
||||
PCMCIA_DEVICE_NULL,
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(pcmcia, pcmcia_devices);
|
||||
|
||||
static struct pcmcia_driver pcmcia_driver = {
|
||||
.owner = THIS_MODULE,
|
||||
.drv = {
|
||||
.name = DRV_NAME,
|
||||
},
|
||||
.id_table = pcmcia_devices,
|
||||
.probe = pcmcia_init_one,
|
||||
.remove = pcmcia_remove_one,
|
||||
};
|
||||
|
||||
static int __init pcmcia_init(void)
|
||||
{
|
||||
return pcmcia_register_driver(&pcmcia_driver);
|
||||
}
|
||||
|
||||
static void __exit pcmcia_exit(void)
|
||||
{
|
||||
pcmcia_unregister_driver(&pcmcia_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for PCMCIA ATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(pcmcia_init);
|
||||
module_exit(pcmcia_exit);
|
||||
869
drivers/ata/pata_pdc2027x.c
Normal file
869
drivers/ata/pata_pdc2027x.c
Normal file
|
|
@ -0,0 +1,869 @@
|
|||
/*
|
||||
* Promise PATA TX2/TX4/TX2000/133 IDE driver for pdc20268 to pdc20277.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* Ported to libata by:
|
||||
* Albert Lee <albertcc@tw.ibm.com> IBM Corporation
|
||||
*
|
||||
* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
|
||||
* Portions Copyright (C) 1999 Promise Technology, Inc.
|
||||
*
|
||||
* Author: Frank Tiernan (frankt@promise.com)
|
||||
* Released under terms of General Public License
|
||||
*
|
||||
*
|
||||
* libata documentation is available via 'make {ps|pdf}docs',
|
||||
* as Documentation/DocBook/libata.*
|
||||
*
|
||||
* Hardware information only available under NDA.
|
||||
*
|
||||
*/
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/device.h>
|
||||
#include <scsi/scsi.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <scsi/scsi_cmnd.h>
|
||||
#include <linux/libata.h>
|
||||
#include <asm/io.h>
|
||||
|
||||
#define DRV_NAME "pata_pdc2027x"
|
||||
#define DRV_VERSION "0.74-ac3"
|
||||
#undef PDC_DEBUG
|
||||
|
||||
#ifdef PDC_DEBUG
|
||||
#define PDPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
|
||||
#else
|
||||
#define PDPRINTK(fmt, args...)
|
||||
#endif
|
||||
|
||||
enum {
|
||||
PDC_UDMA_100 = 0,
|
||||
PDC_UDMA_133 = 1,
|
||||
|
||||
PDC_100_MHZ = 100000000,
|
||||
PDC_133_MHZ = 133333333,
|
||||
|
||||
PDC_SYS_CTL = 0x1100,
|
||||
PDC_ATA_CTL = 0x1104,
|
||||
PDC_GLOBAL_CTL = 0x1108,
|
||||
PDC_CTCR0 = 0x110C,
|
||||
PDC_CTCR1 = 0x1110,
|
||||
PDC_BYTE_COUNT = 0x1120,
|
||||
PDC_PLL_CTL = 0x1202,
|
||||
};
|
||||
|
||||
static int pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
|
||||
static void pdc2027x_remove_one(struct pci_dev *pdev);
|
||||
static void pdc2027x_error_handler(struct ata_port *ap);
|
||||
static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev);
|
||||
static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev);
|
||||
static void pdc2027x_post_set_mode(struct ata_port *ap);
|
||||
static int pdc2027x_check_atapi_dma(struct ata_queued_cmd *qc);
|
||||
|
||||
/*
|
||||
* ATA Timing Tables based on 133MHz controller clock.
|
||||
* These tables are only used when the controller is in 133MHz clock.
|
||||
* If the controller is in 100MHz clock, the ASIC hardware will
|
||||
* set the timing registers automatically when "set feature" command
|
||||
* is issued to the device. However, if the controller clock is 133MHz,
|
||||
* the following tables must be used.
|
||||
*/
|
||||
static struct pdc2027x_pio_timing {
|
||||
u8 value0, value1, value2;
|
||||
} pdc2027x_pio_timing_tbl [] = {
|
||||
{ 0xfb, 0x2b, 0xac }, /* PIO mode 0 */
|
||||
{ 0x46, 0x29, 0xa4 }, /* PIO mode 1 */
|
||||
{ 0x23, 0x26, 0x64 }, /* PIO mode 2 */
|
||||
{ 0x27, 0x0d, 0x35 }, /* PIO mode 3, IORDY on, Prefetch off */
|
||||
{ 0x23, 0x09, 0x25 }, /* PIO mode 4, IORDY on, Prefetch off */
|
||||
};
|
||||
|
||||
static struct pdc2027x_mdma_timing {
|
||||
u8 value0, value1;
|
||||
} pdc2027x_mdma_timing_tbl [] = {
|
||||
{ 0xdf, 0x5f }, /* MDMA mode 0 */
|
||||
{ 0x6b, 0x27 }, /* MDMA mode 1 */
|
||||
{ 0x69, 0x25 }, /* MDMA mode 2 */
|
||||
};
|
||||
|
||||
static struct pdc2027x_udma_timing {
|
||||
u8 value0, value1, value2;
|
||||
} pdc2027x_udma_timing_tbl [] = {
|
||||
{ 0x4a, 0x0f, 0xd5 }, /* UDMA mode 0 */
|
||||
{ 0x3a, 0x0a, 0xd0 }, /* UDMA mode 1 */
|
||||
{ 0x2a, 0x07, 0xcd }, /* UDMA mode 2 */
|
||||
{ 0x1a, 0x05, 0xcd }, /* UDMA mode 3 */
|
||||
{ 0x1a, 0x03, 0xcd }, /* UDMA mode 4 */
|
||||
{ 0x1a, 0x02, 0xcb }, /* UDMA mode 5 */
|
||||
{ 0x1a, 0x01, 0xcb }, /* UDMA mode 6 */
|
||||
};
|
||||
|
||||
static const struct pci_device_id pdc2027x_pci_tbl[] = {
|
||||
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_100 },
|
||||
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
|
||||
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_100 },
|
||||
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
|
||||
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
|
||||
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
|
||||
{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, PDC_UDMA_133 },
|
||||
{ } /* terminate list */
|
||||
};
|
||||
|
||||
static struct pci_driver pdc2027x_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = pdc2027x_pci_tbl,
|
||||
.probe = pdc2027x_init_one,
|
||||
.remove = __devexit_p(pdc2027x_remove_one),
|
||||
};
|
||||
|
||||
static struct scsi_host_template pdc2027x_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations pdc2027x_pata100_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.check_atapi_dma = pdc2027x_check_atapi_dma,
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_mmio_data_xfer,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = pdc2027x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_pci_host_stop,
|
||||
};
|
||||
|
||||
static struct ata_port_operations pdc2027x_pata133_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = pdc2027x_set_piomode,
|
||||
.set_dmamode = pdc2027x_set_dmamode,
|
||||
.post_set_mode = pdc2027x_post_set_mode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.check_atapi_dma = pdc2027x_check_atapi_dma,
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_mmio_data_xfer,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = pdc2027x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_pci_host_stop,
|
||||
};
|
||||
|
||||
static struct ata_port_info pdc2027x_port_info[] = {
|
||||
/* PDC_UDMA_100 */
|
||||
{
|
||||
.sht = &pdc2027x_sht,
|
||||
.flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_SLAVE_POSS |
|
||||
ATA_FLAG_MMIO,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma0-2 */
|
||||
.udma_mask = ATA_UDMA5, /* udma0-5 */
|
||||
.port_ops = &pdc2027x_pata100_ops,
|
||||
},
|
||||
/* PDC_UDMA_133 */
|
||||
{
|
||||
.sht = &pdc2027x_sht,
|
||||
.flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_SLAVE_POSS |
|
||||
ATA_FLAG_MMIO,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma0-2 */
|
||||
.udma_mask = ATA_UDMA6, /* udma0-6 */
|
||||
.port_ops = &pdc2027x_pata133_ops,
|
||||
},
|
||||
};
|
||||
|
||||
MODULE_AUTHOR("Andre Hedrick, Frank Tiernan, Albert Lee");
|
||||
MODULE_DESCRIPTION("libata driver module for Promise PDC20268 to PDC20277");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
MODULE_DEVICE_TABLE(pci, pdc2027x_pci_tbl);
|
||||
|
||||
/**
|
||||
* port_mmio - Get the MMIO address of PDC2027x extended registers
|
||||
* @ap: Port
|
||||
* @offset: offset from mmio base
|
||||
*/
|
||||
static inline void* port_mmio(struct ata_port *ap, unsigned int offset)
|
||||
{
|
||||
return ap->host->mmio_base + ap->port_no * 0x100 + offset;
|
||||
}
|
||||
|
||||
/**
|
||||
* dev_mmio - Get the MMIO address of PDC2027x extended registers
|
||||
* @ap: Port
|
||||
* @adev: device
|
||||
* @offset: offset from mmio base
|
||||
*/
|
||||
static inline void* dev_mmio(struct ata_port *ap, struct ata_device *adev, unsigned int offset)
|
||||
{
|
||||
u8 adj = (adev->devno) ? 0x08 : 0x00;
|
||||
return port_mmio(ap, offset) + adj;
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_pata_cbl_detect - Probe host controller cable detect info
|
||||
* @ap: Port for which cable detect info is desired
|
||||
*
|
||||
* Read 80c cable indicator from Promise extended register.
|
||||
* This register is latched when the system is reset.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
static void pdc2027x_cbl_detect(struct ata_port *ap)
|
||||
{
|
||||
u32 cgcr;
|
||||
|
||||
/* check cable detect results */
|
||||
cgcr = readl(port_mmio(ap, PDC_GLOBAL_CTL));
|
||||
if (cgcr & (1 << 26))
|
||||
goto cbl40;
|
||||
|
||||
PDPRINTK("No cable or 80-conductor cable on port %d\n", ap->port_no);
|
||||
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return;
|
||||
|
||||
cbl40:
|
||||
printk(KERN_INFO DRV_NAME ": 40-conductor cable detected on port %d\n", ap->port_no);
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
ap->udma_mask &= ATA_UDMA_MASK_40C;
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_port_enabled - Check PDC ATA control register to see whether the port is enabled.
|
||||
* @ap: Port to check
|
||||
*/
|
||||
static inline int pdc2027x_port_enabled(struct ata_port *ap)
|
||||
{
|
||||
return readb(port_mmio(ap, PDC_ATA_CTL)) & 0x02;
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_prereset - prereset for PATA host controller
|
||||
* @ap: Target port
|
||||
*
|
||||
* Probeinit including cable detection.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static int pdc2027x_prereset(struct ata_port *ap)
|
||||
{
|
||||
/* Check whether port enabled */
|
||||
if (!pdc2027x_port_enabled(ap)) {
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
pdc2027x_cbl_detect(ap);
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_error_handler - Perform reset on PATA port and classify
|
||||
* @ap: Port to reset
|
||||
*
|
||||
* Reset PATA phy and classify attached devices.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void pdc2027x_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, pdc2027x_prereset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_set_piomode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port to configure
|
||||
* @adev: um
|
||||
* @pio: PIO mode, 0 - 4
|
||||
*
|
||||
* Set PIO mode for device.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned int pio = adev->pio_mode - XFER_PIO_0;
|
||||
u32 ctcr0, ctcr1;
|
||||
|
||||
PDPRINTK("adev->pio_mode[%X]\n", adev->pio_mode);
|
||||
|
||||
/* Sanity check */
|
||||
if (pio > 4) {
|
||||
printk(KERN_ERR DRV_NAME ": Unknown pio mode [%d] ignored\n", pio);
|
||||
return;
|
||||
|
||||
}
|
||||
|
||||
/* Set the PIO timing registers using value table for 133MHz */
|
||||
PDPRINTK("Set pio regs... \n");
|
||||
|
||||
ctcr0 = readl(dev_mmio(ap, adev, PDC_CTCR0));
|
||||
ctcr0 &= 0xffff0000;
|
||||
ctcr0 |= pdc2027x_pio_timing_tbl[pio].value0 |
|
||||
(pdc2027x_pio_timing_tbl[pio].value1 << 8);
|
||||
writel(ctcr0, dev_mmio(ap, adev, PDC_CTCR0));
|
||||
|
||||
ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1));
|
||||
ctcr1 &= 0x00ffffff;
|
||||
ctcr1 |= (pdc2027x_pio_timing_tbl[pio].value2 << 24);
|
||||
writel(ctcr1, dev_mmio(ap, adev, PDC_CTCR1));
|
||||
|
||||
PDPRINTK("Set pio regs done\n");
|
||||
|
||||
PDPRINTK("Set to pio mode[%u] \n", pio);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_set_dmamode - Initialize host controller PATA UDMA timings
|
||||
* @ap: Port to configure
|
||||
* @adev: um
|
||||
* @udma: udma mode, XFER_UDMA_0 to XFER_UDMA_6
|
||||
*
|
||||
* Set UDMA mode for device.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned int dma_mode = adev->dma_mode;
|
||||
u32 ctcr0, ctcr1;
|
||||
|
||||
if ((dma_mode >= XFER_UDMA_0) &&
|
||||
(dma_mode <= XFER_UDMA_6)) {
|
||||
/* Set the UDMA timing registers with value table for 133MHz */
|
||||
unsigned int udma_mode = dma_mode & 0x07;
|
||||
|
||||
if (dma_mode == XFER_UDMA_2) {
|
||||
/*
|
||||
* Turn off tHOLD.
|
||||
* If tHOLD is '1', the hardware will add half clock for data hold time.
|
||||
* This code segment seems to be no effect. tHOLD will be overwritten below.
|
||||
*/
|
||||
ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1));
|
||||
writel(ctcr1 & ~(1 << 7), dev_mmio(ap, adev, PDC_CTCR1));
|
||||
}
|
||||
|
||||
PDPRINTK("Set udma regs... \n");
|
||||
|
||||
ctcr1 = readl(dev_mmio(ap, adev, PDC_CTCR1));
|
||||
ctcr1 &= 0xff000000;
|
||||
ctcr1 |= pdc2027x_udma_timing_tbl[udma_mode].value0 |
|
||||
(pdc2027x_udma_timing_tbl[udma_mode].value1 << 8) |
|
||||
(pdc2027x_udma_timing_tbl[udma_mode].value2 << 16);
|
||||
writel(ctcr1, dev_mmio(ap, adev, PDC_CTCR1));
|
||||
|
||||
PDPRINTK("Set udma regs done\n");
|
||||
|
||||
PDPRINTK("Set to udma mode[%u] \n", udma_mode);
|
||||
|
||||
} else if ((dma_mode >= XFER_MW_DMA_0) &&
|
||||
(dma_mode <= XFER_MW_DMA_2)) {
|
||||
/* Set the MDMA timing registers with value table for 133MHz */
|
||||
unsigned int mdma_mode = dma_mode & 0x07;
|
||||
|
||||
PDPRINTK("Set mdma regs... \n");
|
||||
ctcr0 = readl(dev_mmio(ap, adev, PDC_CTCR0));
|
||||
|
||||
ctcr0 &= 0x0000ffff;
|
||||
ctcr0 |= (pdc2027x_mdma_timing_tbl[mdma_mode].value0 << 16) |
|
||||
(pdc2027x_mdma_timing_tbl[mdma_mode].value1 << 24);
|
||||
|
||||
writel(ctcr0, dev_mmio(ap, adev, PDC_CTCR0));
|
||||
PDPRINTK("Set mdma regs done\n");
|
||||
|
||||
PDPRINTK("Set to mdma mode[%u] \n", mdma_mode);
|
||||
} else {
|
||||
printk(KERN_ERR DRV_NAME ": Unknown dma mode [%u] ignored\n", dma_mode);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_post_set_mode - Set the timing registers back to correct values.
|
||||
* @ap: Port to configure
|
||||
*
|
||||
* The pdc2027x hardware will look at "SET FEATURES" and change the timing registers
|
||||
* automatically. The values set by the hardware might be incorrect, under 133Mhz PLL.
|
||||
* This function overwrites the possibly incorrect values set by the hardware to be correct.
|
||||
*/
|
||||
static void pdc2027x_post_set_mode(struct ata_port *ap)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ATA_MAX_DEVICES; i++) {
|
||||
struct ata_device *dev = &ap->device[i];
|
||||
|
||||
if (ata_dev_enabled(dev)) {
|
||||
|
||||
pdc2027x_set_piomode(ap, dev);
|
||||
|
||||
/*
|
||||
* Enable prefetch if the device support PIO only.
|
||||
*/
|
||||
if (dev->xfer_shift == ATA_SHIFT_PIO) {
|
||||
u32 ctcr1 = readl(dev_mmio(ap, dev, PDC_CTCR1));
|
||||
ctcr1 |= (1 << 25);
|
||||
writel(ctcr1, dev_mmio(ap, dev, PDC_CTCR1));
|
||||
|
||||
PDPRINTK("Turn on prefetch\n");
|
||||
} else {
|
||||
pdc2027x_set_dmamode(ap, dev);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_check_atapi_dma - Check whether ATAPI DMA can be supported for this command
|
||||
* @qc: Metadata associated with taskfile to check
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*
|
||||
* RETURNS: 0 when ATAPI DMA can be used
|
||||
* 1 otherwise
|
||||
*/
|
||||
static int pdc2027x_check_atapi_dma(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct scsi_cmnd *cmd = qc->scsicmd;
|
||||
u8 *scsicmd = cmd->cmnd;
|
||||
int rc = 1; /* atapi dma off by default */
|
||||
|
||||
/*
|
||||
* This workaround is from Promise's GPL driver.
|
||||
* If ATAPI DMA is used for commands not in the
|
||||
* following white list, say MODE_SENSE and REQUEST_SENSE,
|
||||
* pdc2027x might hit the irq lost problem.
|
||||
*/
|
||||
switch (scsicmd[0]) {
|
||||
case READ_10:
|
||||
case WRITE_10:
|
||||
case READ_12:
|
||||
case WRITE_12:
|
||||
case READ_6:
|
||||
case WRITE_6:
|
||||
case 0xad: /* READ_DVD_STRUCTURE */
|
||||
case 0xbe: /* READ_CD */
|
||||
/* ATAPI DMA is ok */
|
||||
rc = 0;
|
||||
break;
|
||||
default:
|
||||
;
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc_read_counter - Read the ctr counter
|
||||
* @probe_ent: for the port address
|
||||
*/
|
||||
|
||||
static long pdc_read_counter(struct ata_probe_ent *probe_ent)
|
||||
{
|
||||
long counter;
|
||||
int retry = 1;
|
||||
u32 bccrl, bccrh, bccrlv, bccrhv;
|
||||
|
||||
retry:
|
||||
bccrl = readl(probe_ent->mmio_base + PDC_BYTE_COUNT) & 0xffff;
|
||||
bccrh = readl(probe_ent->mmio_base + PDC_BYTE_COUNT + 0x100) & 0xffff;
|
||||
rmb();
|
||||
|
||||
/* Read the counter values again for verification */
|
||||
bccrlv = readl(probe_ent->mmio_base + PDC_BYTE_COUNT) & 0xffff;
|
||||
bccrhv = readl(probe_ent->mmio_base + PDC_BYTE_COUNT + 0x100) & 0xffff;
|
||||
rmb();
|
||||
|
||||
counter = (bccrh << 15) | bccrl;
|
||||
|
||||
PDPRINTK("bccrh [%X] bccrl [%X]\n", bccrh, bccrl);
|
||||
PDPRINTK("bccrhv[%X] bccrlv[%X]\n", bccrhv, bccrlv);
|
||||
|
||||
/*
|
||||
* The 30-bit decreasing counter are read by 2 pieces.
|
||||
* Incorrect value may be read when both bccrh and bccrl are changing.
|
||||
* Ex. When 7900 decrease to 78FF, wrong value 7800 might be read.
|
||||
*/
|
||||
if (retry && !(bccrh == bccrhv && bccrl >= bccrlv)) {
|
||||
retry--;
|
||||
PDPRINTK("rereading counter\n");
|
||||
goto retry;
|
||||
}
|
||||
|
||||
return counter;
|
||||
}
|
||||
|
||||
/**
|
||||
* adjust_pll - Adjust the PLL input clock in Hz.
|
||||
*
|
||||
* @pdc_controller: controller specific information
|
||||
* @probe_ent: For the port address
|
||||
* @pll_clock: The input of PLL in HZ
|
||||
*/
|
||||
static void pdc_adjust_pll(struct ata_probe_ent *probe_ent, long pll_clock, unsigned int board_idx)
|
||||
{
|
||||
|
||||
u16 pll_ctl;
|
||||
long pll_clock_khz = pll_clock / 1000;
|
||||
long pout_required = board_idx? PDC_133_MHZ:PDC_100_MHZ;
|
||||
long ratio = pout_required / pll_clock_khz;
|
||||
int F, R;
|
||||
|
||||
/* Sanity check */
|
||||
if (unlikely(pll_clock_khz < 5000L || pll_clock_khz > 70000L)) {
|
||||
printk(KERN_ERR DRV_NAME ": Invalid PLL input clock %ldkHz, give up!\n", pll_clock_khz);
|
||||
return;
|
||||
}
|
||||
|
||||
#ifdef PDC_DEBUG
|
||||
PDPRINTK("pout_required is %ld\n", pout_required);
|
||||
|
||||
/* Show the current clock value of PLL control register
|
||||
* (maybe already configured by the firmware)
|
||||
*/
|
||||
pll_ctl = readw(probe_ent->mmio_base + PDC_PLL_CTL);
|
||||
|
||||
PDPRINTK("pll_ctl[%X]\n", pll_ctl);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Calculate the ratio of F, R and OD
|
||||
* POUT = (F + 2) / (( R + 2) * NO)
|
||||
*/
|
||||
if (ratio < 8600L) { /* 8.6x */
|
||||
/* Using NO = 0x01, R = 0x0D */
|
||||
R = 0x0d;
|
||||
} else if (ratio < 12900L) { /* 12.9x */
|
||||
/* Using NO = 0x01, R = 0x08 */
|
||||
R = 0x08;
|
||||
} else if (ratio < 16100L) { /* 16.1x */
|
||||
/* Using NO = 0x01, R = 0x06 */
|
||||
R = 0x06;
|
||||
} else if (ratio < 64000L) { /* 64x */
|
||||
R = 0x00;
|
||||
} else {
|
||||
/* Invalid ratio */
|
||||
printk(KERN_ERR DRV_NAME ": Invalid ratio %ld, give up!\n", ratio);
|
||||
return;
|
||||
}
|
||||
|
||||
F = (ratio * (R+2)) / 1000 - 2;
|
||||
|
||||
if (unlikely(F < 0 || F > 127)) {
|
||||
/* Invalid F */
|
||||
printk(KERN_ERR DRV_NAME ": F[%d] invalid!\n", F);
|
||||
return;
|
||||
}
|
||||
|
||||
PDPRINTK("F[%d] R[%d] ratio*1000[%ld]\n", F, R, ratio);
|
||||
|
||||
pll_ctl = (R << 8) | F;
|
||||
|
||||
PDPRINTK("Writing pll_ctl[%X]\n", pll_ctl);
|
||||
|
||||
writew(pll_ctl, probe_ent->mmio_base + PDC_PLL_CTL);
|
||||
readw(probe_ent->mmio_base + PDC_PLL_CTL); /* flush */
|
||||
|
||||
/* Wait the PLL circuit to be stable */
|
||||
mdelay(30);
|
||||
|
||||
#ifdef PDC_DEBUG
|
||||
/*
|
||||
* Show the current clock value of PLL control register
|
||||
* (maybe configured by the firmware)
|
||||
*/
|
||||
pll_ctl = readw(probe_ent->mmio_base + PDC_PLL_CTL);
|
||||
|
||||
PDPRINTK("pll_ctl[%X]\n", pll_ctl);
|
||||
#endif
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
/**
|
||||
* detect_pll_input_clock - Detect the PLL input clock in Hz.
|
||||
* @probe_ent: for the port address
|
||||
* Ex. 16949000 on 33MHz PCI bus for pdc20275.
|
||||
* Half of the PCI clock.
|
||||
*/
|
||||
static long pdc_detect_pll_input_clock(struct ata_probe_ent *probe_ent)
|
||||
{
|
||||
u32 scr;
|
||||
long start_count, end_count;
|
||||
long pll_clock;
|
||||
|
||||
/* Read current counter value */
|
||||
start_count = pdc_read_counter(probe_ent);
|
||||
|
||||
/* Start the test mode */
|
||||
scr = readl(probe_ent->mmio_base + PDC_SYS_CTL);
|
||||
PDPRINTK("scr[%X]\n", scr);
|
||||
writel(scr | (0x01 << 14), probe_ent->mmio_base + PDC_SYS_CTL);
|
||||
readl(probe_ent->mmio_base + PDC_SYS_CTL); /* flush */
|
||||
|
||||
/* Let the counter run for 100 ms. */
|
||||
mdelay(100);
|
||||
|
||||
/* Read the counter values again */
|
||||
end_count = pdc_read_counter(probe_ent);
|
||||
|
||||
/* Stop the test mode */
|
||||
scr = readl(probe_ent->mmio_base + PDC_SYS_CTL);
|
||||
PDPRINTK("scr[%X]\n", scr);
|
||||
writel(scr & ~(0x01 << 14), probe_ent->mmio_base + PDC_SYS_CTL);
|
||||
readl(probe_ent->mmio_base + PDC_SYS_CTL); /* flush */
|
||||
|
||||
/* calculate the input clock in Hz */
|
||||
pll_clock = (start_count - end_count) * 10;
|
||||
|
||||
PDPRINTK("start[%ld] end[%ld] \n", start_count, end_count);
|
||||
PDPRINTK("PLL input clock[%ld]Hz\n", pll_clock);
|
||||
|
||||
return pll_clock;
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc_hardware_init - Initialize the hardware.
|
||||
* @pdev: instance of pci_dev found
|
||||
* @pdc_controller: controller specific information
|
||||
* @pe: for the port address
|
||||
*/
|
||||
static int pdc_hardware_init(struct pci_dev *pdev, struct ata_probe_ent *pe, unsigned int board_idx)
|
||||
{
|
||||
long pll_clock;
|
||||
|
||||
/*
|
||||
* Detect PLL input clock rate.
|
||||
* On some system, where PCI bus is running at non-standard clock rate.
|
||||
* Ex. 25MHz or 40MHz, we have to adjust the cycle_time.
|
||||
* The pdc20275 controller employs PLL circuit to help correct timing registers setting.
|
||||
*/
|
||||
pll_clock = pdc_detect_pll_input_clock(pe);
|
||||
|
||||
if (pll_clock < 0) /* counter overflow? Try again. */
|
||||
pll_clock = pdc_detect_pll_input_clock(pe);
|
||||
|
||||
dev_printk(KERN_INFO, &pdev->dev, "PLL input clock %ld kHz\n", pll_clock/1000);
|
||||
|
||||
/* Adjust PLL control register */
|
||||
pdc_adjust_pll(pe, pll_clock, board_idx);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc_ata_setup_port - setup the mmio address
|
||||
* @port: ata ioports to setup
|
||||
* @base: base address
|
||||
*/
|
||||
static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base)
|
||||
{
|
||||
port->cmd_addr =
|
||||
port->data_addr = base;
|
||||
port->feature_addr =
|
||||
port->error_addr = base + 0x05;
|
||||
port->nsect_addr = base + 0x0a;
|
||||
port->lbal_addr = base + 0x0f;
|
||||
port->lbam_addr = base + 0x10;
|
||||
port->lbah_addr = base + 0x15;
|
||||
port->device_addr = base + 0x1a;
|
||||
port->command_addr =
|
||||
port->status_addr = base + 0x1f;
|
||||
port->altstatus_addr =
|
||||
port->ctl_addr = base + 0x81a;
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_init_one - PCI probe function
|
||||
* Called when an instance of PCI adapter is inserted.
|
||||
* This function checks whether the hardware is supported,
|
||||
* initialize hardware and register an instance of ata_host to
|
||||
* libata by providing struct ata_probe_ent and ata_device_add().
|
||||
* (implements struct pci_driver.probe() )
|
||||
*
|
||||
* @pdev: instance of pci_dev found
|
||||
* @ent: matching entry in the id_tbl[]
|
||||
*/
|
||||
static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
{
|
||||
static int printed_version;
|
||||
unsigned int board_idx = (unsigned int) ent->driver_data;
|
||||
|
||||
struct ata_probe_ent *probe_ent = NULL;
|
||||
unsigned long base;
|
||||
void *mmio_base;
|
||||
int rc;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
|
||||
|
||||
rc = pci_enable_device(pdev);
|
||||
if (rc)
|
||||
return rc;
|
||||
|
||||
rc = pci_request_regions(pdev, DRV_NAME);
|
||||
if (rc)
|
||||
goto err_out;
|
||||
|
||||
rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
|
||||
if (rc)
|
||||
goto err_out_regions;
|
||||
|
||||
rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
|
||||
if (rc)
|
||||
goto err_out_regions;
|
||||
|
||||
/* Prepare the probe entry */
|
||||
probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
|
||||
if (probe_ent == NULL) {
|
||||
rc = -ENOMEM;
|
||||
goto err_out_regions;
|
||||
}
|
||||
|
||||
probe_ent->dev = pci_dev_to_dev(pdev);
|
||||
INIT_LIST_HEAD(&probe_ent->node);
|
||||
|
||||
mmio_base = pci_iomap(pdev, 5, 0);
|
||||
if (!mmio_base) {
|
||||
rc = -ENOMEM;
|
||||
goto err_out_free_ent;
|
||||
}
|
||||
|
||||
base = (unsigned long) mmio_base;
|
||||
|
||||
probe_ent->sht = pdc2027x_port_info[board_idx].sht;
|
||||
probe_ent->port_flags = pdc2027x_port_info[board_idx].flags;
|
||||
probe_ent->pio_mask = pdc2027x_port_info[board_idx].pio_mask;
|
||||
probe_ent->mwdma_mask = pdc2027x_port_info[board_idx].mwdma_mask;
|
||||
probe_ent->udma_mask = pdc2027x_port_info[board_idx].udma_mask;
|
||||
probe_ent->port_ops = pdc2027x_port_info[board_idx].port_ops;
|
||||
|
||||
probe_ent->irq = pdev->irq;
|
||||
probe_ent->irq_flags = SA_SHIRQ;
|
||||
probe_ent->mmio_base = mmio_base;
|
||||
|
||||
pdc_ata_setup_port(&probe_ent->port[0], base + 0x17c0);
|
||||
probe_ent->port[0].bmdma_addr = base + 0x1000;
|
||||
pdc_ata_setup_port(&probe_ent->port[1], base + 0x15c0);
|
||||
probe_ent->port[1].bmdma_addr = base + 0x1008;
|
||||
|
||||
probe_ent->n_ports = 2;
|
||||
|
||||
pci_set_master(pdev);
|
||||
//pci_enable_intx(pdev);
|
||||
|
||||
/* initialize adapter */
|
||||
if (pdc_hardware_init(pdev, probe_ent, board_idx) != 0)
|
||||
goto err_out_free_ent;
|
||||
|
||||
ata_device_add(probe_ent);
|
||||
kfree(probe_ent);
|
||||
|
||||
return 0;
|
||||
|
||||
err_out_free_ent:
|
||||
kfree(probe_ent);
|
||||
err_out_regions:
|
||||
pci_release_regions(pdev);
|
||||
err_out:
|
||||
pci_disable_device(pdev);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_remove_one - Called to remove a single instance of the
|
||||
* adapter.
|
||||
*
|
||||
* @dev: The PCI device to remove.
|
||||
* FIXME: module load/unload not working yet
|
||||
*/
|
||||
static void __devexit pdc2027x_remove_one(struct pci_dev *pdev)
|
||||
{
|
||||
ata_pci_remove_one(pdev);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_init - Called after this module is loaded into the kernel.
|
||||
*/
|
||||
static int __init pdc2027x_init(void)
|
||||
{
|
||||
return pci_module_init(&pdc2027x_pci_driver);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2027x_exit - Called before this module unloaded from the kernel
|
||||
*/
|
||||
static void __exit pdc2027x_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&pdc2027x_pci_driver);
|
||||
}
|
||||
|
||||
module_init(pdc2027x_init);
|
||||
module_exit(pdc2027x_exit);
|
||||
423
drivers/ata/pata_pdc202xx_old.c
Normal file
423
drivers/ata/pata_pdc202xx_old.c
Normal file
|
|
@ -0,0 +1,423 @@
|
|||
/*
|
||||
* pata_pdc202xx_old.c - Promise PDC202xx PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Based in part on linux/drivers/ide/pci/pdc202xx_old.c
|
||||
*
|
||||
* First cut with LBA48/ATAPI
|
||||
*
|
||||
* TODO:
|
||||
* Channel interlock/reset on both required ?
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_pdc202xx_old"
|
||||
#define DRV_VERSION "0.2.1"
|
||||
|
||||
/**
|
||||
* pdc2024x_pre_reset - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generic probe init
|
||||
*/
|
||||
|
||||
static int pdc2024x_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
|
||||
static void pdc2024x_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, pdc2024x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
|
||||
static int pdc2026x_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u16 cis;
|
||||
|
||||
pci_read_config_word(pdev, 0x50, &cis);
|
||||
if (cis & (1 << (10 + ap->port_no)))
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
static void pdc2026x_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, pdc2026x_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc_configure_piomode - set chip PIO timing
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
* @pio: PIO mode
|
||||
*
|
||||
* Called to do the PIO mode setup. Our timing registers are shared
|
||||
* so a configure_dmamode call will undo any work we do here and vice
|
||||
* versa
|
||||
*/
|
||||
|
||||
static void pdc_configure_piomode(struct ata_port *ap, struct ata_device *adev, int pio)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int port = 0x60 + 4 * ap->port_no + 2 * adev->devno;
|
||||
static u16 pio_timing[5] = {
|
||||
0x0913, 0x050C , 0x0308, 0x0206, 0x0104
|
||||
};
|
||||
u8 r_ap, r_bp;
|
||||
|
||||
pci_read_config_byte(pdev, port, &r_ap);
|
||||
pci_read_config_byte(pdev, port + 1, &r_bp);
|
||||
r_ap &= ~0x3F; /* Preserve ERRDY_EN, SYNC_IN */
|
||||
r_bp &= ~0x07;
|
||||
r_ap |= (pio_timing[pio] >> 8);
|
||||
r_bp |= (pio_timing[pio] & 0xFF);
|
||||
|
||||
if (ata_pio_need_iordy(adev))
|
||||
r_ap |= 0x20; /* IORDY enable */
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
r_ap |= 0x10; /* FIFO enable */
|
||||
pci_write_config_byte(pdev, port, r_ap);
|
||||
pci_write_config_byte(pdev, port + 1, r_bp);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the PIO mode setup. Our timing registers are shared
|
||||
* but we want to set the PIO timing by default.
|
||||
*/
|
||||
|
||||
static void pdc_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
pdc_configure_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc_configure_dmamode - set DMA mode in chip
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Load DMA cycle times into the chip ready for a DMA transfer
|
||||
* to occur.
|
||||
*/
|
||||
|
||||
static void pdc_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int port = 0x60 + 4 * ap->port_no + 2 * adev->devno;
|
||||
static u8 udma_timing[6][2] = {
|
||||
{ 0x60, 0x03 }, /* 33 Mhz Clock */
|
||||
{ 0x40, 0x02 },
|
||||
{ 0x20, 0x01 },
|
||||
{ 0x40, 0x02 }, /* 66 Mhz Clock */
|
||||
{ 0x20, 0x01 },
|
||||
{ 0x20, 0x01 }
|
||||
};
|
||||
u8 r_bp, r_cp;
|
||||
|
||||
pci_read_config_byte(pdev, port + 1, &r_bp);
|
||||
pci_read_config_byte(pdev, port + 2, &r_cp);
|
||||
|
||||
r_bp &= ~0xF0;
|
||||
r_cp &= ~0x0F;
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
int speed = adev->dma_mode - XFER_UDMA_0;
|
||||
r_bp |= udma_timing[speed][0];
|
||||
r_cp |= udma_timing[speed][1];
|
||||
|
||||
} else {
|
||||
int speed = adev->dma_mode - XFER_MW_DMA_0;
|
||||
r_bp |= 0x60;
|
||||
r_cp |= (5 - speed);
|
||||
}
|
||||
pci_write_config_byte(pdev, port + 1, r_bp);
|
||||
pci_write_config_byte(pdev, port + 2, r_cp);
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2026x_bmdma_start - DMA engine begin
|
||||
* @qc: ATA command
|
||||
*
|
||||
* In UDMA3 or higher we have to clock switch for the duration of the
|
||||
* DMA transfer sequence.
|
||||
*/
|
||||
|
||||
static void pdc2026x_bmdma_start(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
struct ata_taskfile *tf = &qc->tf;
|
||||
int sel66 = ap->port_no ? 0x08: 0x02;
|
||||
|
||||
unsigned long master = ap->host->ports[0]->ioaddr.bmdma_addr;
|
||||
unsigned long clock = master + 0x11;
|
||||
unsigned long atapi_reg = master + 0x20 + (4 * ap->port_no);
|
||||
|
||||
u32 len;
|
||||
|
||||
/* Check we keep host level locking here */
|
||||
if (adev->dma_mode >= XFER_UDMA_2)
|
||||
outb(inb(clock) | sel66, clock);
|
||||
else
|
||||
outb(inb(clock) & ~sel66, clock);
|
||||
|
||||
/* The DMA clocks may have been trashed by a reset. FIXME: make conditional
|
||||
and move to qc_issue ? */
|
||||
pdc_set_dmamode(ap, qc->dev);
|
||||
|
||||
/* Cases the state machine will not complete correctly without help */
|
||||
if ((tf->flags & ATA_TFLAG_LBA48) || tf->protocol == ATA_PROT_ATAPI_DMA)
|
||||
{
|
||||
if (tf->flags & ATA_TFLAG_LBA48)
|
||||
len = qc->nsect * 512;
|
||||
else
|
||||
len = qc->nbytes;
|
||||
|
||||
if (tf->flags & ATA_TFLAG_WRITE)
|
||||
len |= 0x06000000;
|
||||
else
|
||||
len |= 0x05000000;
|
||||
|
||||
outl(len, atapi_reg);
|
||||
}
|
||||
|
||||
/* Activate DMA */
|
||||
ata_bmdma_start(qc);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2026x_bmdma_end - DMA engine stop
|
||||
* @qc: ATA command
|
||||
*
|
||||
* After a DMA completes we need to put the clock back to 33MHz for
|
||||
* PIO timings.
|
||||
*/
|
||||
|
||||
static void pdc2026x_bmdma_stop(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
struct ata_taskfile *tf = &qc->tf;
|
||||
|
||||
int sel66 = ap->port_no ? 0x08: 0x02;
|
||||
/* The clock bits are in the same register for both channels */
|
||||
unsigned long master = ap->host->ports[0]->ioaddr.bmdma_addr;
|
||||
unsigned long clock = master + 0x11;
|
||||
unsigned long atapi_reg = master + 0x20 + (4 * ap->port_no);
|
||||
|
||||
/* Cases the state machine will not complete correctly */
|
||||
if (tf->protocol == ATA_PROT_ATAPI_DMA || ( tf->flags & ATA_TFLAG_LBA48)) {
|
||||
outl(0, atapi_reg);
|
||||
outb(inb(clock) & ~sel66, clock);
|
||||
}
|
||||
/* Check we keep host level locking here */
|
||||
/* Flip back to 33Mhz for PIO */
|
||||
if (adev->dma_mode >= XFER_UDMA_2)
|
||||
outb(inb(clock) & ~sel66, clock);
|
||||
|
||||
ata_bmdma_stop(qc);
|
||||
}
|
||||
|
||||
/**
|
||||
* pdc2026x_dev_config - device setup hook
|
||||
* @ap: ATA port
|
||||
* @adev: newly found device
|
||||
*
|
||||
* Perform chip specific early setup. We need to lock the transfer
|
||||
* sizes to 8bit to avoid making the state engine on the 2026x cards
|
||||
* barf.
|
||||
*/
|
||||
|
||||
static void pdc2026x_dev_config(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
adev->max_sectors = 256;
|
||||
}
|
||||
|
||||
static struct scsi_host_template pdc_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations pdc2024x_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = pdc_set_piomode,
|
||||
.set_dmamode = pdc_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = pdc2024x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations pdc2026x_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = pdc_set_piomode,
|
||||
.set_dmamode = pdc_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
.dev_config = pdc2026x_dev_config,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = pdc2026x_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = pdc2026x_bmdma_start,
|
||||
.bmdma_stop = pdc2026x_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int pdc_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info[3] = {
|
||||
{
|
||||
.sht = &pdc_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = ATA_UDMA2,
|
||||
.port_ops = &pdc2024x_port_ops
|
||||
},
|
||||
{
|
||||
.sht = &pdc_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = ATA_UDMA4,
|
||||
.port_ops = &pdc2026x_port_ops
|
||||
},
|
||||
{
|
||||
.sht = &pdc_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = ATA_UDMA5,
|
||||
.port_ops = &pdc2026x_port_ops
|
||||
}
|
||||
|
||||
};
|
||||
static struct ata_port_info *port_info[2];
|
||||
|
||||
port_info[0] = port_info[1] = &info[id->driver_data];
|
||||
|
||||
if (dev->device == PCI_DEVICE_ID_PROMISE_20265) {
|
||||
struct pci_dev *bridge = dev->bus->self;
|
||||
/* Don't grab anything behind a Promise I2O RAID */
|
||||
if (bridge && bridge->vendor == PCI_VENDOR_ID_INTEL) {
|
||||
if( bridge->device == PCI_DEVICE_ID_INTEL_I960)
|
||||
return -ENODEV;
|
||||
if( bridge->device == PCI_DEVICE_ID_INTEL_I960RM)
|
||||
return -ENODEV;
|
||||
}
|
||||
}
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static struct pci_device_id pdc[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20246), 0},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20262), 1},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20263), 1},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20265), 2},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20267), 2},
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver pdc_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = pdc,
|
||||
.probe = pdc_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init pdc_init(void)
|
||||
{
|
||||
return pci_register_driver(&pdc_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit pdc_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&pdc_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Promise 2024x and 20262-20267");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, pdc);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(pdc_init);
|
||||
module_exit(pdc_exit);
|
||||
403
drivers/ata/pata_qdi.c
Normal file
403
drivers/ata/pata_qdi.c
Normal file
|
|
@ -0,0 +1,403 @@
|
|||
/*
|
||||
* pata_qdi.c - QDI VLB ATA controllers
|
||||
* (C) 2006 Red Hat <alan@redhat.com>
|
||||
*
|
||||
* This driver mostly exists as a proof of concept for non PCI devices under
|
||||
* libata. While the QDI6580 was 'neat' in 1993 it is no longer terribly
|
||||
* useful.
|
||||
*
|
||||
* Tuning code written from the documentation at
|
||||
* http://www.ryston.cz/petr/vlb/qd6500.html
|
||||
* http://www.ryston.cz/petr/vlb/qd6580.html
|
||||
*
|
||||
* Probe code based on drivers/ide/legacy/qd65xx.c
|
||||
* Rewritten from the work of Colten Edwards <pje120@cs.usask.ca> by
|
||||
* Samuel Thibault <samuel.thibault@fnac.net>
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#define DRV_NAME "pata_qdi"
|
||||
#define DRV_VERSION "0.2.4"
|
||||
|
||||
#define NR_HOST 4 /* Two 6580s */
|
||||
|
||||
struct qdi_data {
|
||||
unsigned long timing;
|
||||
u8 clock[2];
|
||||
u8 last;
|
||||
int fast;
|
||||
struct platform_device *platform_dev;
|
||||
|
||||
};
|
||||
|
||||
static struct ata_host *qdi_host[NR_HOST];
|
||||
static struct qdi_data qdi_data[NR_HOST];
|
||||
static int nr_qdi_host;
|
||||
|
||||
#ifdef MODULE
|
||||
static int probe_qdi = 1;
|
||||
#else
|
||||
static int probe_qdi;
|
||||
#endif
|
||||
|
||||
static void qdi6500_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct ata_timing t;
|
||||
struct qdi_data *qdi = ap->host->private_data;
|
||||
int active, recovery;
|
||||
u8 timing;
|
||||
|
||||
/* Get the timing data in cycles */
|
||||
ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000);
|
||||
|
||||
if (qdi->fast) {
|
||||
active = 8 - FIT(t.active, 1, 8);
|
||||
recovery = 18 - FIT(t.recover, 3, 18);
|
||||
} else {
|
||||
active = 9 - FIT(t.active, 2, 9);
|
||||
recovery = 15 - FIT(t.recover, 0, 15);
|
||||
}
|
||||
timing = (recovery << 4) | active | 0x08;
|
||||
|
||||
qdi->clock[adev->devno] = timing;
|
||||
|
||||
outb(timing, qdi->timing);
|
||||
}
|
||||
|
||||
static void qdi6580_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct ata_timing t;
|
||||
struct qdi_data *qdi = ap->host->private_data;
|
||||
int active, recovery;
|
||||
u8 timing;
|
||||
|
||||
/* Get the timing data in cycles */
|
||||
ata_timing_compute(adev, adev->pio_mode, &t, 30303, 1000);
|
||||
|
||||
if (qdi->fast) {
|
||||
active = 8 - FIT(t.active, 1, 8);
|
||||
recovery = 18 - FIT(t.recover, 3, 18);
|
||||
} else {
|
||||
active = 9 - FIT(t.active, 2, 9);
|
||||
recovery = 15 - FIT(t.recover, 0, 15);
|
||||
}
|
||||
timing = (recovery << 4) | active | 0x08;
|
||||
|
||||
qdi->clock[adev->devno] = timing;
|
||||
|
||||
outb(timing, qdi->timing);
|
||||
|
||||
/* Clear the FIFO */
|
||||
if (adev->class != ATA_DEV_ATA)
|
||||
outb(0x5F, (qdi->timing & 0xFFF0) + 3);
|
||||
}
|
||||
|
||||
/**
|
||||
* qdi_qc_issue_prot - command issue
|
||||
* @qc: command pending
|
||||
*
|
||||
* Called when the libata layer is about to issue a command. We wrap
|
||||
* this interface so that we can load the correct ATA timings.
|
||||
*/
|
||||
|
||||
static unsigned int qdi_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
struct qdi_data *qdi = ap->host->private_data;
|
||||
|
||||
if (qdi->clock[adev->devno] != qdi->last) {
|
||||
if (adev->pio_mode) {
|
||||
qdi->last = qdi->clock[adev->devno];
|
||||
outb(qdi->clock[adev->devno], qdi->timing);
|
||||
}
|
||||
}
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
static void qdi_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data)
|
||||
{
|
||||
struct ata_port *ap = adev->ap;
|
||||
int slop = buflen & 3;
|
||||
|
||||
if (ata_id_has_dword_io(adev->id)) {
|
||||
if (write_data)
|
||||
outsl(ap->ioaddr.data_addr, buf, buflen >> 2);
|
||||
else
|
||||
insl(ap->ioaddr.data_addr, buf, buflen >> 2);
|
||||
|
||||
if (unlikely(slop)) {
|
||||
u32 pad;
|
||||
if (write_data) {
|
||||
memcpy(&pad, buf + buflen - slop, slop);
|
||||
outl(le32_to_cpu(pad), ap->ioaddr.data_addr);
|
||||
} else {
|
||||
pad = cpu_to_le16(inl(ap->ioaddr.data_addr));
|
||||
memcpy(buf + buflen - slop, &pad, slop);
|
||||
}
|
||||
}
|
||||
} else
|
||||
ata_pio_data_xfer(adev, buf, buflen, write_data);
|
||||
}
|
||||
|
||||
static struct scsi_host_template qdi_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations qdi6500_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = qdi6500_set_piomode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = qdi_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = qdi_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations qdi6580_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = qdi6580_set_piomode,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = qdi_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = qdi_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* qdi_init_one - attach a qdi interface
|
||||
* @type: Type to display
|
||||
* @io: I/O port start
|
||||
* @irq: interrupt line
|
||||
* @fast: True if on a > 33Mhz VLB
|
||||
*
|
||||
* Register an ISA bus IDE interface. Such interfaces are PIO and we
|
||||
* assume do not support IRQ sharing.
|
||||
*/
|
||||
|
||||
static __init int qdi_init_one(unsigned long port, int type, unsigned long io, int irq, int fast)
|
||||
{
|
||||
struct ata_probe_ent ae;
|
||||
struct platform_device *pdev;
|
||||
int ret;
|
||||
|
||||
unsigned long ctrl = io + 0x206;
|
||||
|
||||
/*
|
||||
* Fill in a probe structure first of all
|
||||
*/
|
||||
|
||||
pdev = platform_device_register_simple(DRV_NAME, nr_qdi_host, NULL, 0);
|
||||
if (pdev == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
memset(&ae, 0, sizeof(struct ata_probe_ent));
|
||||
INIT_LIST_HEAD(&ae.node);
|
||||
ae.dev = &pdev->dev;
|
||||
|
||||
if (type == 6580) {
|
||||
ae.port_ops = &qdi6580_port_ops;
|
||||
ae.pio_mask = 0x1F;
|
||||
} else {
|
||||
ae.port_ops = &qdi6500_port_ops;
|
||||
ae.pio_mask = 0x07; /* Actually PIO3 !IORDY is possible */
|
||||
}
|
||||
|
||||
ae.sht = &qdi_sht;
|
||||
ae.n_ports = 1;
|
||||
ae.irq = irq;
|
||||
ae.irq_flags = 0;
|
||||
ae.port_flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST;
|
||||
ae.port[0].cmd_addr = io;
|
||||
ae.port[0].altstatus_addr = ctrl;
|
||||
ae.port[0].ctl_addr = ctrl;
|
||||
ata_std_ports(&ae.port[0]);
|
||||
|
||||
/*
|
||||
* Hook in a private data structure per channel
|
||||
*/
|
||||
ae.private_data = &qdi_data[nr_qdi_host];
|
||||
|
||||
qdi_data[nr_qdi_host].timing = port;
|
||||
qdi_data[nr_qdi_host].fast = fast;
|
||||
qdi_data[nr_qdi_host].platform_dev = pdev;
|
||||
|
||||
printk(KERN_INFO DRV_NAME": qd%d at 0x%lx.\n", type, io);
|
||||
ret = ata_device_add(&ae);
|
||||
if (ret == 0) {
|
||||
platform_device_unregister(pdev);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
qdi_host[nr_qdi_host++] = dev_get_drvdata(&pdev->dev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* qdi_init - attach qdi interfaces
|
||||
*
|
||||
* Attach qdi IDE interfaces by scanning the ports it may occupy.
|
||||
*/
|
||||
|
||||
static __init int qdi_init(void)
|
||||
{
|
||||
unsigned long flags;
|
||||
static const unsigned long qd_port[2] = { 0x30, 0xB0 };
|
||||
static const unsigned long ide_port[2] = { 0x170, 0x1F0 };
|
||||
static const int ide_irq[2] = { 14, 15 };
|
||||
|
||||
int ct = 0;
|
||||
int i;
|
||||
|
||||
if (probe_qdi == 0)
|
||||
return -ENODEV;
|
||||
|
||||
/*
|
||||
* Check each possible QD65xx base address
|
||||
*/
|
||||
|
||||
for (i = 0; i < 2; i++) {
|
||||
unsigned long port = qd_port[i];
|
||||
u8 r, res;
|
||||
|
||||
|
||||
if (request_region(port, 2, "pata_qdi")) {
|
||||
/* Check for a card */
|
||||
local_irq_save(flags);
|
||||
r = inb_p(port);
|
||||
outb_p(0x19, port);
|
||||
res = inb_p(port);
|
||||
outb_p(r, port);
|
||||
local_irq_restore(flags);
|
||||
|
||||
/* Fail */
|
||||
if (res == 0x19)
|
||||
{
|
||||
release_region(port, 2);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Passes the presence test */
|
||||
r = inb_p(port + 1); /* Check port agrees with port set */
|
||||
if ((r & 2) >> 1 != i) {
|
||||
release_region(port, 2);
|
||||
continue;
|
||||
}
|
||||
|
||||
/* Check card type */
|
||||
if ((r & 0xF0) == 0xC0) {
|
||||
/* QD6500: single channel */
|
||||
if (r & 8) {
|
||||
/* Disabled ? */
|
||||
release_region(port, 2);
|
||||
continue;
|
||||
}
|
||||
ct += qdi_init_one(port, 6500, ide_port[r & 0x01], ide_irq[r & 0x01], r & 0x04);
|
||||
}
|
||||
if (((r & 0xF0) == 0xA0) || (r & 0xF0) == 0x50) {
|
||||
/* QD6580: dual channel */
|
||||
if (!request_region(port + 2 , 2, "pata_qdi"))
|
||||
{
|
||||
release_region(port, 2);
|
||||
continue;
|
||||
}
|
||||
res = inb(port + 3);
|
||||
if (res & 1) {
|
||||
/* Single channel mode */
|
||||
ct += qdi_init_one(port, 6580, ide_port[r & 0x01], ide_irq[r & 0x01], r & 0x04);
|
||||
} else {
|
||||
/* Dual channel mode */
|
||||
ct += qdi_init_one(port, 6580, 0x1F0, 14, r & 0x04);
|
||||
ct += qdi_init_one(port + 2, 6580, 0x170, 15, r & 0x04);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (ct != 0)
|
||||
return 0;
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static __exit void qdi_exit(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < nr_qdi_host; i++) {
|
||||
ata_host_remove(qdi_host[i]);
|
||||
/* Free the control resource. The 6580 dual channel has the resources
|
||||
* claimed as a pair of 2 byte resources so we need no special cases...
|
||||
*/
|
||||
release_region(qdi_data[i].timing, 2);
|
||||
platform_device_unregister(qdi_data[i].platform_dev);
|
||||
}
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for qdi ATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(qdi_init);
|
||||
module_exit(qdi_exit);
|
||||
|
||||
module_param(probe_qdi, int, 0);
|
||||
|
||||
335
drivers/ata/pata_radisys.c
Normal file
335
drivers/ata/pata_radisys.c
Normal file
|
|
@ -0,0 +1,335 @@
|
|||
/*
|
||||
* pata_radisys.c - Intel PATA/SATA controllers
|
||||
*
|
||||
* (C) 2006 Red Hat <alan@redhat.com>
|
||||
*
|
||||
* Some parts based on ata_piix.c by Jeff Garzik and others.
|
||||
*
|
||||
* A PIIX relative, this device has a single ATA channel and no
|
||||
* slave timings, SITRE or PPE. In that sense it is a close relative
|
||||
* of the original PIIX. It does however support UDMA 33/66 per channel
|
||||
* although no other modes/timings. Also lacking is 32bit I/O on the ATA
|
||||
* port.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/device.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
#include <linux/ata.h>
|
||||
|
||||
#define DRV_NAME "pata_radisys"
|
||||
#define DRV_VERSION "0.4.1"
|
||||
|
||||
/**
|
||||
* radisys_probe_init - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generic probe init
|
||||
*/
|
||||
|
||||
static int radisys_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA80;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* radisys_pata_error_handler - Probe specified port on PATA host controller
|
||||
* @ap: Port to probe
|
||||
* @classes:
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void radisys_pata_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, radisys_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* radisys_set_piomode - Initialize host controller PATA PIO timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: um
|
||||
*
|
||||
* Set PIO mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void radisys_set_piomode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
unsigned int pio = adev->pio_mode - XFER_PIO_0;
|
||||
struct pci_dev *dev = to_pci_dev(ap->host->dev);
|
||||
u16 idetm_data;
|
||||
int control = 0;
|
||||
|
||||
/*
|
||||
* See Intel Document 298600-004 for the timing programing rules
|
||||
* for PIIX/ICH. Note that the early PIIX does not have the slave
|
||||
* timing port at 0x44. The Radisys is a relative of the PIIX
|
||||
* but not the same so be careful.
|
||||
*/
|
||||
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 }, /* Check me */
|
||||
{ 0, 0 },
|
||||
{ 1, 1 },
|
||||
{ 2, 2 },
|
||||
{ 3, 3 }, };
|
||||
|
||||
if (pio > 0)
|
||||
control |= 1; /* TIME1 enable */
|
||||
if (ata_pio_need_iordy(adev))
|
||||
control |= 2; /* IE IORDY */
|
||||
|
||||
pci_read_config_word(dev, 0x40, &idetm_data);
|
||||
|
||||
/* Enable IE and TIME as appropriate. Clear the other
|
||||
drive timing bits */
|
||||
idetm_data &= 0xCCCC;
|
||||
idetm_data |= (control << (4 * adev->devno));
|
||||
idetm_data |= (timings[pio][0] << 12) |
|
||||
(timings[pio][1] << 8);
|
||||
pci_write_config_word(dev, 0x40, idetm_data);
|
||||
|
||||
/* Track which port is configured */
|
||||
ap->private_data = adev;
|
||||
}
|
||||
|
||||
/**
|
||||
* radisys_set_dmamode - Initialize host controller PATA DMA timings
|
||||
* @ap: Port whose timings we are configuring
|
||||
* @adev: Device to program
|
||||
* @isich: True if the device is an ICH and has IOCFG registers
|
||||
*
|
||||
* Set MWDMA mode for device, in host controller PCI config space.
|
||||
*
|
||||
* LOCKING:
|
||||
* None (inherited from caller).
|
||||
*/
|
||||
|
||||
static void radisys_set_dmamode (struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *dev = to_pci_dev(ap->host->dev);
|
||||
u16 idetm_data;
|
||||
u8 udma_enable;
|
||||
|
||||
static const /* ISP RTC */
|
||||
u8 timings[][2] = { { 0, 0 },
|
||||
{ 0, 0 },
|
||||
{ 1, 1 },
|
||||
{ 2, 2 },
|
||||
{ 3, 3 }, };
|
||||
|
||||
/*
|
||||
* MWDMA is driven by the PIO timings. We must also enable
|
||||
* IORDY unconditionally.
|
||||
*/
|
||||
|
||||
pci_read_config_word(dev, 0x40, &idetm_data);
|
||||
pci_read_config_byte(dev, 0x48, &udma_enable);
|
||||
|
||||
if (adev->dma_mode < XFER_UDMA_0) {
|
||||
unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
|
||||
const unsigned int needed_pio[3] = {
|
||||
XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
|
||||
};
|
||||
int pio = needed_pio[mwdma] - XFER_PIO_0;
|
||||
int control = 3; /* IORDY|TIME0 */
|
||||
|
||||
/* If the drive MWDMA is faster than it can do PIO then
|
||||
we must force PIO0 for PIO cycles. */
|
||||
|
||||
if (adev->pio_mode < needed_pio[mwdma])
|
||||
control = 1;
|
||||
|
||||
/* Mask out the relevant control and timing bits we will load. Also
|
||||
clear the other drive TIME register as a precaution */
|
||||
|
||||
idetm_data &= 0xCCCC;
|
||||
idetm_data |= control << (4 * adev->devno);
|
||||
idetm_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8);
|
||||
|
||||
udma_enable &= ~(1 << adev->devno);
|
||||
} else {
|
||||
u8 udma_mode;
|
||||
|
||||
/* UDMA66 on: UDMA 33 and 66 are switchable via register 0x4A */
|
||||
|
||||
pci_read_config_byte(dev, 0x4A, &udma_mode);
|
||||
|
||||
if (adev->xfer_mode == XFER_UDMA_2)
|
||||
udma_mode &= ~ (1 << adev->devno);
|
||||
else /* UDMA 4 */
|
||||
udma_mode |= (1 << adev->devno);
|
||||
|
||||
pci_write_config_byte(dev, 0x4A, udma_mode);
|
||||
|
||||
udma_enable |= (1 << adev->devno);
|
||||
}
|
||||
pci_write_config_word(dev, 0x40, idetm_data);
|
||||
pci_write_config_byte(dev, 0x48, udma_enable);
|
||||
|
||||
/* Track which port is configured */
|
||||
ap->private_data = adev;
|
||||
}
|
||||
|
||||
/**
|
||||
* radisys_qc_issue_prot - command issue
|
||||
* @qc: command pending
|
||||
*
|
||||
* Called when the libata layer is about to issue a command. We wrap
|
||||
* this interface so that we can load the correct ATA timings if
|
||||
* neccessary. Our logic also clears TIME0/TIME1 for the other device so
|
||||
* that, even if we get this wrong, cycles to the other device will
|
||||
* be made PIO0.
|
||||
*/
|
||||
|
||||
static unsigned int radisys_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
|
||||
if (adev != ap->private_data) {
|
||||
/* UDMA timing is not shared */
|
||||
if (adev->dma_mode < XFER_UDMA_0) {
|
||||
if (adev->dma_mode)
|
||||
radisys_set_dmamode(ap, adev);
|
||||
else if (adev->pio_mode)
|
||||
radisys_set_piomode(ap, adev);
|
||||
}
|
||||
}
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
|
||||
static struct scsi_host_template radisys_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static const struct ata_port_operations radisys_pata_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = radisys_set_piomode,
|
||||
.set_dmamode = radisys_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = radisys_pata_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = radisys_qc_issue_prot,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop,
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* radisys_init_one - Register PIIX ATA PCI device with kernel services
|
||||
* @pdev: PCI device to register
|
||||
* @ent: Entry in radisys_pci_tbl matching with @pdev
|
||||
*
|
||||
* Called from kernel PCI layer. We probe for combined mode (sigh),
|
||||
* and then hand over control to libata, for it to do the rest.
|
||||
*
|
||||
* LOCKING:
|
||||
* Inherited from PCI layer (may sleep).
|
||||
*
|
||||
* RETURNS:
|
||||
* Zero on success, or -ERRNO value.
|
||||
*/
|
||||
|
||||
static int radisys_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
{
|
||||
static int printed_version;
|
||||
static struct ata_port_info info = {
|
||||
.sht = &radisys_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f, /* pio0-4 */
|
||||
.mwdma_mask = 0x07, /* mwdma1-2 */
|
||||
.udma_mask = 0x14, /* UDMA33/66 only */
|
||||
.port_ops = &radisys_pata_ops,
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev,
|
||||
"version " DRV_VERSION "\n");
|
||||
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id radisys_pci_tbl[] = {
|
||||
{ 0x1331, 0x8201, PCI_ANY_ID, PCI_ANY_ID, },
|
||||
{ } /* terminate list */
|
||||
};
|
||||
|
||||
static struct pci_driver radisys_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = radisys_pci_tbl,
|
||||
.probe = radisys_init_one,
|
||||
.remove = ata_pci_remove_one,
|
||||
};
|
||||
|
||||
static int __init radisys_init(void)
|
||||
{
|
||||
return pci_register_driver(&radisys_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit radisys_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&radisys_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
module_init(radisys_init);
|
||||
module_exit(radisys_exit);
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("SCSI low-level driver for Radisys R82600 controllers");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, radisys_pci_tbl);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
205
drivers/ata/pata_rz1000.c
Normal file
205
drivers/ata/pata_rz1000.c
Normal file
|
|
@ -0,0 +1,205 @@
|
|||
/*
|
||||
* RZ1000/1001 driver based upon
|
||||
*
|
||||
* linux/drivers/ide/pci/rz1000.c Version 0.06 January 12, 2003
|
||||
* Copyright (C) 1995-1998 Linus Torvalds & author (see below)
|
||||
* Principal Author: mlord@pobox.com (Mark Lord)
|
||||
*
|
||||
* See linux/MAINTAINERS for address of current maintainer.
|
||||
*
|
||||
* This file provides support for disabling the buggy read-ahead
|
||||
* mode of the RZ1000 IDE chipset, commonly used on Intel motherboards.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_rz1000"
|
||||
#define DRV_VERSION "0.2.2"
|
||||
|
||||
|
||||
/**
|
||||
* rz1000_prereset - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generics
|
||||
*/
|
||||
|
||||
static int rz1000_prereset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* rz1000_error_handler - probe reset
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform the ATA standard reset sequence
|
||||
*/
|
||||
|
||||
static void rz1000_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, rz1000_prereset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* rz1000_set_mode - mode setting function
|
||||
* @ap: ATA interface
|
||||
*
|
||||
* Use a non standard set_mode function. We don't want to be tuned. We
|
||||
* would prefer to be BIOS generic but for the fact our hardware is
|
||||
* whacked out.
|
||||
*/
|
||||
|
||||
static void rz1000_set_mode(struct ata_port *ap)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ATA_MAX_DEVICES; i++) {
|
||||
struct ata_device *dev = &ap->device[i];
|
||||
if (ata_dev_enabled(dev)) {
|
||||
/* We don't really care */
|
||||
dev->pio_mode = XFER_PIO_0;
|
||||
dev->xfer_mode = XFER_PIO_0;
|
||||
dev->xfer_shift = ATA_SHIFT_PIO;
|
||||
dev->flags |= ATA_DFLAG_PIO;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static struct scsi_host_template rz1000_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations rz1000_port_ops = {
|
||||
.set_mode = rz1000_set_mode,
|
||||
|
||||
.port_disable = ata_port_disable,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = rz1000_error_handler,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = rz1000_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* rz1000_init_one - Register RZ1000 ATA PCI device with kernel services
|
||||
* @pdev: PCI device to register
|
||||
* @ent: Entry in rz1000_pci_tbl matching with @pdev
|
||||
*
|
||||
* Configure an RZ1000 interface. This doesn't require much special
|
||||
* handling except that we *MUST* kill the chipset readahead or the
|
||||
* user may experience data corruption.
|
||||
*/
|
||||
|
||||
static int rz1000_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
{
|
||||
static int printed_version;
|
||||
struct ata_port_info *port_info[2];
|
||||
u16 reg;
|
||||
static struct ata_port_info info = {
|
||||
.sht = &rz1000_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.port_ops = &rz1000_port_ops
|
||||
};
|
||||
|
||||
if (!printed_version++)
|
||||
printk(KERN_DEBUG DRV_NAME " version " DRV_VERSION "\n");
|
||||
|
||||
/* Be exceptionally paranoid as we must be sure to apply the fix */
|
||||
if (pci_read_config_word(pdev, 0x40, ®) != 0)
|
||||
goto fail;
|
||||
reg &= 0xDFFF;
|
||||
if (pci_write_config_word(pdev, 0x40, reg) != 0)
|
||||
goto fail;
|
||||
printk(KERN_INFO DRV_NAME ": disabled chipset readahead.\n");
|
||||
|
||||
port_info[0] = &info;
|
||||
port_info[1] = &info;
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
fail:
|
||||
printk(KERN_ERR DRV_NAME ": failed to disable read-ahead on chipset..\n");
|
||||
/* Not safe to use so skip */
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static struct pci_device_id pata_rz1000[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1000), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver rz1000_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = pata_rz1000,
|
||||
.probe = rz1000_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
|
||||
static int __init rz1000_init(void)
|
||||
{
|
||||
return pci_register_driver(&rz1000_pci_driver);
|
||||
}
|
||||
|
||||
static void __exit rz1000_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&rz1000_pci_driver);
|
||||
}
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for RZ1000 PCI ATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, pata_rz1000);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(rz1000_init);
|
||||
module_exit(rz1000_exit);
|
||||
|
||||
287
drivers/ata/pata_sc1200.c
Normal file
287
drivers/ata/pata_sc1200.c
Normal file
|
|
@ -0,0 +1,287 @@
|
|||
/*
|
||||
* New ATA layer SC1200 driver Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* TODO: Mode selection filtering
|
||||
* TODO: Can't enable second channel until ATA core has serialize
|
||||
* TODO: Needs custom DMA cleanup code
|
||||
*
|
||||
* Based very heavily on
|
||||
*
|
||||
* linux/drivers/ide/pci/sc1200.c Version 0.91 28-Jan-2003
|
||||
*
|
||||
* Copyright (C) 2000-2002 Mark Lord <mlord@pobox.com>
|
||||
* May be copied or modified under the terms of the GNU General Public License
|
||||
*
|
||||
* Development of this chipset driver was funded
|
||||
* by the nice folks at National Semiconductor.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "sc1200"
|
||||
#define DRV_VERSION "0.2.3"
|
||||
|
||||
#define SC1200_REV_A 0x00
|
||||
#define SC1200_REV_B1 0x01
|
||||
#define SC1200_REV_B3 0x02
|
||||
#define SC1200_REV_C1 0x03
|
||||
#define SC1200_REV_D1 0x04
|
||||
|
||||
/**
|
||||
* sc1200_clock - PCI clock
|
||||
*
|
||||
* Return the PCI bus clocking for the SC1200 chipset configuration
|
||||
* in use. We return 0 for 33MHz 1 for 48MHz and 2 for 66Mhz
|
||||
*/
|
||||
|
||||
static int sc1200_clock(void)
|
||||
{
|
||||
/* Magic registers that give us the chipset data */
|
||||
u8 chip_id = inb(0x903C);
|
||||
u8 silicon_rev = inb(0x903D);
|
||||
u16 pci_clock;
|
||||
|
||||
if (chip_id == 0x04 && silicon_rev < SC1200_REV_B1)
|
||||
return 0; /* 33 MHz mode */
|
||||
|
||||
/* Clock generator configuration 0x901E its 8/9 are the PCI clocking
|
||||
0/3 is 33Mhz 1 is 48 2 is 66 */
|
||||
|
||||
pci_clock = inw(0x901E);
|
||||
pci_clock >>= 8;
|
||||
pci_clock &= 0x03;
|
||||
if (pci_clock == 3)
|
||||
pci_clock = 0;
|
||||
return pci_clock;
|
||||
}
|
||||
|
||||
/**
|
||||
* sc1200_set_piomode - PIO setup
|
||||
* @ap: ATA interface
|
||||
* @adev: device on the interface
|
||||
*
|
||||
* Set our PIO requirements. This is fairly simple on the SC1200
|
||||
*/
|
||||
|
||||
static void sc1200_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const u32 pio_timings[4][5] = {
|
||||
{0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010}, // format0 33Mhz
|
||||
{0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}, // format1, 33Mhz
|
||||
{0xfaa3f4f3, 0xc23232b2, 0x513101c1, 0x31213121, 0x10211021}, // format1, 48Mhz
|
||||
{0xfff4fff4, 0xf35353d3, 0x814102f1, 0x42314231, 0x11311131} // format1, 66Mhz
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 format;
|
||||
unsigned int reg = 0x40 + 0x10 * ap->port_no;
|
||||
int mode = adev->pio_mode - XFER_PIO_0;
|
||||
|
||||
pci_read_config_dword(pdev, reg + 4, &format);
|
||||
format >>= 31;
|
||||
format += sc1200_clock();
|
||||
pci_write_config_dword(pdev, reg + 8 * adev->devno,
|
||||
pio_timings[format][mode]);
|
||||
}
|
||||
|
||||
/**
|
||||
* sc1200_set_dmamode - DMA timing setup
|
||||
* @ap: ATA interface
|
||||
* @adev: Device being configured
|
||||
*
|
||||
* We cannot mix MWDMA and UDMA without reloading timings each switch
|
||||
* master to slave.
|
||||
*/
|
||||
|
||||
static void sc1200_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const u32 udma_timing[3][3] = {
|
||||
{ 0x00921250, 0x00911140, 0x00911030 },
|
||||
{ 0x00932470, 0x00922260, 0x00922140 },
|
||||
{ 0x009436A1, 0x00933481, 0x00923261 }
|
||||
};
|
||||
|
||||
static const u32 mwdma_timing[3][3] = {
|
||||
{ 0x00077771, 0x00012121, 0x00002020 },
|
||||
{ 0x000BBBB2, 0x00024241, 0x00013131 },
|
||||
{ 0x000FFFF3, 0x00035352, 0x00015151 }
|
||||
};
|
||||
|
||||
int clock = sc1200_clock();
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
unsigned int reg = 0x40 + 0x10 * ap->port_no;
|
||||
int mode = adev->dma_mode;
|
||||
u32 format;
|
||||
|
||||
if (mode >= XFER_UDMA_0)
|
||||
format = udma_timing[clock][mode - XFER_UDMA_0];
|
||||
else
|
||||
format = mwdma_timing[clock][mode - XFER_MW_DMA_0];
|
||||
|
||||
if (adev->devno == 0) {
|
||||
u32 timings;
|
||||
|
||||
pci_read_config_dword(pdev, reg + 4, &timings);
|
||||
timings &= 0x80000000UL;
|
||||
timings |= format;
|
||||
pci_write_config_dword(pdev, reg + 4, timings);
|
||||
} else
|
||||
pci_write_config_dword(pdev, reg + 12, format);
|
||||
}
|
||||
|
||||
/**
|
||||
* sc1200_qc_issue_prot - command issue
|
||||
* @qc: command pending
|
||||
*
|
||||
* Called when the libata layer is about to issue a command. We wrap
|
||||
* this interface so that we can load the correct ATA timings if
|
||||
* neccessary. Specifically we have a problem that there is only
|
||||
* one MWDMA/UDMA bit.
|
||||
*/
|
||||
|
||||
static unsigned int sc1200_qc_issue_prot(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
struct ata_device *adev = qc->dev;
|
||||
struct ata_device *prev = ap->private_data;
|
||||
|
||||
/* See if the DMA settings could be wrong */
|
||||
if (adev->dma_mode != 0 && adev != prev && prev != NULL) {
|
||||
/* Maybe, but do the channels match MWDMA/UDMA ? */
|
||||
if ((adev->dma_mode >= XFER_UDMA_0 && prev->dma_mode < XFER_UDMA_0) ||
|
||||
(adev->dma_mode < XFER_UDMA_0 && prev->dma_mode >= XFER_UDMA_0))
|
||||
/* Switch the mode bits */
|
||||
sc1200_set_dmamode(ap, adev);
|
||||
}
|
||||
|
||||
return ata_qc_issue_prot(qc);
|
||||
}
|
||||
|
||||
static struct scsi_host_template sc1200_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations sc1200_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = sc1200_set_piomode,
|
||||
.set_dmamode = sc1200_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = ata_bmdma_error_handler,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = sc1200_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* sc1200_init_one - Initialise an SC1200
|
||||
* @dev: PCI device
|
||||
* @id: Entry in match table
|
||||
*
|
||||
* Just throw the needed data at the libata helper and it does all
|
||||
* our work.
|
||||
*/
|
||||
|
||||
static int sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &sc1200_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS|ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x07,
|
||||
.port_ops = &sc1200_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
|
||||
/* Can't enable port 2 yet, see top comments */
|
||||
return ata_pci_init_one(dev, port_info, 1);
|
||||
}
|
||||
|
||||
static struct pci_device_id sc1200[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_SCx200_IDE), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver sc1200_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = sc1200,
|
||||
.probe = sc1200_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init sc1200_init(void)
|
||||
{
|
||||
return pci_register_driver(&sc1200_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit sc1200_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&sc1200_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox, Mark Lord");
|
||||
MODULE_DESCRIPTION("low-level driver for the NS/AMD SC1200");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, sc1200);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(sc1200_init);
|
||||
module_exit(sc1200_exit);
|
||||
587
drivers/ata/pata_serverworks.c
Normal file
587
drivers/ata/pata_serverworks.c
Normal file
|
|
@ -0,0 +1,587 @@
|
|||
/*
|
||||
* ata-serverworks.c - Serverworks PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* based upon
|
||||
*
|
||||
* serverworks.c
|
||||
*
|
||||
* Copyright (C) 1998-2000 Michel Aubry
|
||||
* Copyright (C) 1998-2000 Andrzej Krzysztofowicz
|
||||
* Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
|
||||
* Portions copyright (c) 2001 Sun Microsystems
|
||||
*
|
||||
*
|
||||
* RCC/ServerWorks IDE driver for Linux
|
||||
*
|
||||
* OSB4: `Open South Bridge' IDE Interface (fn 1)
|
||||
* supports UDMA mode 2 (33 MB/s)
|
||||
*
|
||||
* CSB5: `Champion South Bridge' IDE Interface (fn 1)
|
||||
* all revisions support UDMA mode 4 (66 MB/s)
|
||||
* revision A2.0 and up support UDMA mode 5 (100 MB/s)
|
||||
*
|
||||
* *** The CSB5 does not provide ANY register ***
|
||||
* *** to detect 80-conductor cable presence. ***
|
||||
*
|
||||
* CSB6: `Champion South Bridge' IDE Interface (optional: third channel)
|
||||
*
|
||||
* Documentation:
|
||||
* Available under NDA only. Errata info very hard to get.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_serverworks"
|
||||
#define DRV_VERSION "0.3.6"
|
||||
|
||||
#define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */
|
||||
#define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */
|
||||
|
||||
/* Seagate Barracuda ATA IV Family drives in UDMA mode 5
|
||||
* can overrun their FIFOs when used with the CSB5 */
|
||||
|
||||
static const char *csb_bad_ata100[] = {
|
||||
"ST320011A",
|
||||
"ST340016A",
|
||||
"ST360021A",
|
||||
"ST380021A",
|
||||
NULL
|
||||
};
|
||||
|
||||
/**
|
||||
* dell_cable - Dell serverworks cable detection
|
||||
* @ap: ATA port to do cable detect
|
||||
*
|
||||
* Dell hide the 40/80 pin select for their interfaces in the top two
|
||||
* bits of the subsystem ID.
|
||||
*/
|
||||
|
||||
static int dell_cable(struct ata_port *ap) {
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
if (pdev->subsystem_device & (1 << (ap->port_no + 14)))
|
||||
return ATA_CBL_PATA80;
|
||||
return ATA_CBL_PATA40;
|
||||
}
|
||||
|
||||
/**
|
||||
* sun_cable - Sun Cobalt 'Alpine' cable detection
|
||||
* @ap: ATA port to do cable select
|
||||
*
|
||||
* Cobalt CSB5 IDE hides the 40/80pin in the top two bits of the
|
||||
* subsystem ID the same as dell. We could use one function but we may
|
||||
* need to extend the Dell one in future
|
||||
*/
|
||||
|
||||
static int sun_cable(struct ata_port *ap) {
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
if (pdev->subsystem_device & (1 << (ap->port_no + 14)))
|
||||
return ATA_CBL_PATA80;
|
||||
return ATA_CBL_PATA40;
|
||||
}
|
||||
|
||||
/**
|
||||
* osb4_cable - OSB4 cable detect
|
||||
* @ap: ATA port to check
|
||||
*
|
||||
* The OSB4 isn't UDMA66 capable so this is easy
|
||||
*/
|
||||
|
||||
static int osb4_cable(struct ata_port *ap) {
|
||||
return ATA_CBL_PATA40;
|
||||
}
|
||||
|
||||
/**
|
||||
* csb4_cable - CSB5/6 cable detect
|
||||
* @ap: ATA port to check
|
||||
*
|
||||
* Serverworks default arrangement is to use the drive side detection
|
||||
* only.
|
||||
*/
|
||||
|
||||
static int csb_cable(struct ata_port *ap) {
|
||||
return ATA_CBL_PATA80;
|
||||
}
|
||||
|
||||
struct sv_cable_table {
|
||||
int device;
|
||||
int subvendor;
|
||||
int (*cable_detect)(struct ata_port *ap);
|
||||
};
|
||||
|
||||
/*
|
||||
* Note that we don't copy the old serverworks code because the old
|
||||
* code contains obvious mistakes
|
||||
*/
|
||||
|
||||
static struct sv_cable_table cable_detect[] = {
|
||||
{ PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_DELL, dell_cable },
|
||||
{ PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_VENDOR_ID_DELL, dell_cable },
|
||||
{ PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_VENDOR_ID_SUN, sun_cable },
|
||||
{ PCI_DEVICE_ID_SERVERWORKS_OSB4, PCI_ANY_ID, osb4_cable },
|
||||
{ PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, PCI_ANY_ID, csb_cable },
|
||||
{ PCI_DEVICE_ID_SERVERWORKS_CSB6IDE, PCI_ANY_ID, csb_cable },
|
||||
{ PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2, PCI_ANY_ID, csb_cable },
|
||||
{ PCI_DEVICE_ID_SERVERWORKS_HT1000IDE, PCI_ANY_ID, csb_cable },
|
||||
{ }
|
||||
};
|
||||
|
||||
/**
|
||||
* serverworks_pre_reset - cable detection
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform cable detection according to the device and subvendor
|
||||
* identifications
|
||||
*/
|
||||
|
||||
static int serverworks_pre_reset(struct ata_port *ap) {
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct sv_cable_table *cb = cable_detect;
|
||||
|
||||
while(cb->device) {
|
||||
if (cb->device == pdev->device &&
|
||||
(cb->subvendor == pdev->subsystem_vendor ||
|
||||
cb->subvendor == PCI_ANY_ID)) {
|
||||
ap->cbl = cb->cable_detect(ap);
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
cb++;
|
||||
}
|
||||
|
||||
BUG();
|
||||
return -1; /* kill compiler warning */
|
||||
}
|
||||
|
||||
static void serverworks_error_handler(struct ata_port *ap)
|
||||
{
|
||||
return ata_bmdma_drive_eh(ap, serverworks_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* serverworks_is_csb - Check for CSB or OSB
|
||||
* @pdev: PCI device to check
|
||||
*
|
||||
* Returns true if the device being checked is known to be a CSB
|
||||
* series device.
|
||||
*/
|
||||
|
||||
static u8 serverworks_is_csb(struct pci_dev *pdev)
|
||||
{
|
||||
switch (pdev->device) {
|
||||
case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
|
||||
case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE:
|
||||
case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2:
|
||||
case PCI_DEVICE_ID_SERVERWORKS_HT1000IDE:
|
||||
return 1;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* serverworks_osb4_filter - mode selection filter
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Filter the offered modes for the device to apply controller
|
||||
* specific rules. OSB4 requires no UDMA for disks due to a FIFO
|
||||
* bug we hit.
|
||||
*/
|
||||
|
||||
static unsigned long serverworks_osb4_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
|
||||
{
|
||||
if (adev->class == ATA_DEV_ATA)
|
||||
mask &= ~ATA_MASK_UDMA;
|
||||
return ata_pci_default_filter(ap, adev, mask);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* serverworks_csb_filter - mode selection filter
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Check the blacklist and disable UDMA5 if matched
|
||||
*/
|
||||
|
||||
static unsigned long serverworks_csb_filter(const struct ata_port *ap, struct ata_device *adev, unsigned long mask)
|
||||
{
|
||||
const char *p;
|
||||
char model_num[40];
|
||||
int len, i;
|
||||
|
||||
/* Disk, UDMA */
|
||||
if (adev->class != ATA_DEV_ATA)
|
||||
return ata_pci_default_filter(ap, adev, mask);
|
||||
|
||||
/* Actually do need to check */
|
||||
ata_id_string(adev->id, model_num, ATA_ID_PROD_OFS, sizeof(model_num));
|
||||
/* Precuationary - why not do this in the libata core ?? */
|
||||
|
||||
len = strlen(model_num);
|
||||
while ((len > 0) && (model_num[len - 1] == ' ')) {
|
||||
len--;
|
||||
model_num[len] = 0;
|
||||
}
|
||||
|
||||
for(i = 0; (p = csb_bad_ata100[i]) != NULL; i++) {
|
||||
if (!strncmp(p, model_num, len))
|
||||
mask &= ~(0x1F << ATA_SHIFT_UDMA);
|
||||
}
|
||||
return ata_pci_default_filter(ap, adev, mask);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* serverworks_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the OSB4/CSB5 timing registers for PIO. The PIO register
|
||||
* load is done as a simple lookup.
|
||||
*/
|
||||
static void serverworks_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const u8 pio_mode[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
|
||||
int offset = 1 + (2 * ap->port_no) - adev->devno;
|
||||
int devbits = (2 * ap->port_no + adev->devno) * 4;
|
||||
u16 csb5_pio;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int pio = adev->pio_mode - XFER_PIO_0;
|
||||
|
||||
pci_write_config_byte(pdev, 0x40 + offset, pio_mode[pio]);
|
||||
|
||||
/* The OSB4 just requires the timing but the CSB series want the
|
||||
mode number as well */
|
||||
if (serverworks_is_csb(pdev)) {
|
||||
pci_read_config_word(pdev, 0x4A, &csb5_pio);
|
||||
csb5_pio &= ~(0x0F << devbits);
|
||||
pci_write_config_byte(pdev, 0x4A, csb5_pio | (pio << devbits));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* serverworks_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the MWDMA/UDMA modes for the serverworks OSB4/CSB5
|
||||
* chipset. The MWDMA mode values are pulled from a lookup table
|
||||
* while the chipset uses mode number for UDMA.
|
||||
*/
|
||||
|
||||
static void serverworks_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static const u8 dma_mode[] = { 0x77, 0x21, 0x20 };
|
||||
int offset = 1 + 2 * ap->port_no - adev->devno;
|
||||
int devbits = (2 * ap->port_no + adev->devno);
|
||||
u8 ultra;
|
||||
u8 ultra_cfg;
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
pci_read_config_byte(pdev, 0x54, &ultra_cfg);
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
pci_write_config_byte(pdev, 0x44 + offset, 0x20);
|
||||
|
||||
pci_read_config_byte(pdev, 0x56 + ap->port_no, &ultra);
|
||||
ultra &= ~(0x0F << (ap->port_no * 4));
|
||||
ultra |= (adev->dma_mode - XFER_UDMA_0)
|
||||
<< (ap->port_no * 4);
|
||||
pci_write_config_byte(pdev, 0x56 + ap->port_no, ultra);
|
||||
|
||||
ultra_cfg |= (1 << devbits);
|
||||
} else {
|
||||
pci_write_config_byte(pdev, 0x44 + offset,
|
||||
dma_mode[adev->dma_mode - XFER_MW_DMA_0]);
|
||||
ultra_cfg &= ~(1 << devbits);
|
||||
}
|
||||
pci_write_config_byte(pdev, 0x54, ultra_cfg);
|
||||
}
|
||||
|
||||
static struct scsi_host_template serverworks_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations serverworks_osb4_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = serverworks_set_piomode,
|
||||
.set_dmamode = serverworks_set_dmamode,
|
||||
.mode_filter = serverworks_osb4_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = serverworks_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations serverworks_csb_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = serverworks_set_piomode,
|
||||
.set_dmamode = serverworks_set_dmamode,
|
||||
.mode_filter = serverworks_csb_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = serverworks_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int serverworks_fixup_osb4(struct pci_dev *pdev)
|
||||
{
|
||||
u32 reg;
|
||||
struct pci_dev *isa_dev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
|
||||
PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL);
|
||||
if (isa_dev) {
|
||||
pci_read_config_dword(isa_dev, 0x64, ®);
|
||||
reg &= ~0x00002000; /* disable 600ns interrupt mask */
|
||||
if (!(reg & 0x00004000))
|
||||
printk(KERN_DEBUG DRV_NAME ": UDMA not BIOS enabled.\n");
|
||||
reg |= 0x00004000; /* enable UDMA/33 support */
|
||||
pci_write_config_dword(isa_dev, 0x64, reg);
|
||||
pci_dev_put(isa_dev);
|
||||
return 0;
|
||||
}
|
||||
printk(KERN_WARNING "ata_serverworks: Unable to find bridge.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static int serverworks_fixup_csb(struct pci_dev *pdev)
|
||||
{
|
||||
u8 rev;
|
||||
u8 btr;
|
||||
|
||||
pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
|
||||
|
||||
/* Third Channel Test */
|
||||
if (!(PCI_FUNC(pdev->devfn) & 1)) {
|
||||
struct pci_dev * findev = NULL;
|
||||
u32 reg4c = 0;
|
||||
findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
|
||||
PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL);
|
||||
if (findev) {
|
||||
pci_read_config_dword(findev, 0x4C, ®4c);
|
||||
reg4c &= ~0x000007FF;
|
||||
reg4c |= 0x00000040;
|
||||
reg4c |= 0x00000020;
|
||||
pci_write_config_dword(findev, 0x4C, reg4c);
|
||||
pci_dev_put(findev);
|
||||
}
|
||||
} else {
|
||||
struct pci_dev * findev = NULL;
|
||||
u8 reg41 = 0;
|
||||
|
||||
findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS,
|
||||
PCI_DEVICE_ID_SERVERWORKS_CSB6, NULL);
|
||||
if (findev) {
|
||||
pci_read_config_byte(findev, 0x41, ®41);
|
||||
reg41 &= ~0x40;
|
||||
pci_write_config_byte(findev, 0x41, reg41);
|
||||
pci_dev_put(findev);
|
||||
}
|
||||
}
|
||||
/* setup the UDMA Control register
|
||||
*
|
||||
* 1. clear bit 6 to enable DMA
|
||||
* 2. enable DMA modes with bits 0-1
|
||||
* 00 : legacy
|
||||
* 01 : udma2
|
||||
* 10 : udma2/udma4
|
||||
* 11 : udma2/udma4/udma5
|
||||
*/
|
||||
pci_read_config_byte(pdev, 0x5A, &btr);
|
||||
btr &= ~0x40;
|
||||
if (!(PCI_FUNC(pdev->devfn) & 1))
|
||||
btr |= 0x2;
|
||||
else
|
||||
btr |= (rev >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
|
||||
pci_write_config_byte(pdev, 0x5A, btr);
|
||||
|
||||
return btr;
|
||||
}
|
||||
|
||||
static void serverworks_fixup_ht1000(struct pci_dev *pdev)
|
||||
{
|
||||
u8 btr;
|
||||
/* Setup HT1000 SouthBridge Controller - Single Channel Only */
|
||||
pci_read_config_byte(pdev, 0x5A, &btr);
|
||||
btr &= ~0x40;
|
||||
btr |= 0x3;
|
||||
pci_write_config_byte(pdev, 0x5A, btr);
|
||||
}
|
||||
|
||||
|
||||
static int serverworks_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
int ports = 2;
|
||||
static struct ata_port_info info[4] = {
|
||||
{ /* OSB4 */
|
||||
.sht = &serverworks_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x07,
|
||||
.port_ops = &serverworks_osb4_port_ops
|
||||
}, { /* OSB4 no UDMA */
|
||||
.sht = &serverworks_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x00,
|
||||
.port_ops = &serverworks_osb4_port_ops
|
||||
}, { /* CSB5 */
|
||||
.sht = &serverworks_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x1f,
|
||||
.port_ops = &serverworks_csb_port_ops
|
||||
}, { /* CSB5 - later revisions*/
|
||||
.sht = &serverworks_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f,
|
||||
.port_ops = &serverworks_csb_port_ops
|
||||
}
|
||||
};
|
||||
static struct ata_port_info *port_info[2];
|
||||
struct ata_port_info *devinfo = &info[id->driver_data];
|
||||
|
||||
/* Force master latency timer to 64 PCI clocks */
|
||||
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x40);
|
||||
|
||||
/* OSB4 : South Bridge and IDE */
|
||||
if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
|
||||
/* Select non UDMA capable OSB4 if we can't do fixups */
|
||||
if ( serverworks_fixup_osb4(pdev) < 0)
|
||||
devinfo = &info[1];
|
||||
}
|
||||
/* setup CSB5/CSB6 : South Bridge and IDE option RAID */
|
||||
else if ((pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) ||
|
||||
(pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
|
||||
(pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) {
|
||||
|
||||
/* If the returned btr is the newer revision then
|
||||
select the right info block */
|
||||
if (serverworks_fixup_csb(pdev) == 3)
|
||||
devinfo = &info[3];
|
||||
|
||||
/* Is this the 3rd channel CSB6 IDE ? */
|
||||
if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)
|
||||
ports = 1;
|
||||
}
|
||||
/* setup HT1000E */
|
||||
else if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE)
|
||||
serverworks_fixup_ht1000(pdev);
|
||||
|
||||
if (pdev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
|
||||
ata_pci_clear_simplex(pdev);
|
||||
|
||||
port_info[0] = port_info[1] = devinfo;
|
||||
return ata_pci_init_one(pdev, port_info, ports);
|
||||
}
|
||||
|
||||
static struct pci_device_id serverworks[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE), 0},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE), 2},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE), 2},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2), 2},
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000IDE), 2},
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver serverworks_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = serverworks,
|
||||
.probe = serverworks_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init serverworks_init(void)
|
||||
{
|
||||
return pci_register_driver(&serverworks_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit serverworks_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&serverworks_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Serverworks OSB4/CSB5/CSB6");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, serverworks);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(serverworks_init);
|
||||
module_exit(serverworks_exit);
|
||||
381
drivers/ata/pata_sil680.c
Normal file
381
drivers/ata/pata_sil680.c
Normal file
|
|
@ -0,0 +1,381 @@
|
|||
/*
|
||||
* pata_sil680.c - SIL680 PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* based upon
|
||||
*
|
||||
* linux/drivers/ide/pci/siimage.c Version 1.07 Nov 30, 2003
|
||||
*
|
||||
* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
|
||||
* Copyright (C) 2003 Red Hat <alan@redhat.com>
|
||||
*
|
||||
* May be copied or modified under the terms of the GNU General Public License
|
||||
*
|
||||
* Documentation publically available.
|
||||
*
|
||||
* If you have strange problems with nVidia chipset systems please
|
||||
* see the SI support documentation and update your system BIOS
|
||||
* if neccessary
|
||||
*
|
||||
* TODO
|
||||
* If we know all our devices are LBA28 (or LBA28 sized) we could use
|
||||
* the command fifo mode.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_sil680"
|
||||
#define DRV_VERSION "0.3.2"
|
||||
|
||||
/**
|
||||
* sil680_selreg - return register base
|
||||
* @hwif: interface
|
||||
* @r: config offset
|
||||
*
|
||||
* Turn a config register offset into the right address in either
|
||||
* PCI space or MMIO space to access the control register in question
|
||||
* Thankfully this is a configuration operation so isnt performance
|
||||
* criticial.
|
||||
*/
|
||||
|
||||
static unsigned long sil680_selreg(struct ata_port *ap, int r)
|
||||
{
|
||||
unsigned long base = 0xA0 + r;
|
||||
base += (ap->port_no << 4);
|
||||
return base;
|
||||
}
|
||||
|
||||
/**
|
||||
* sil680_seldev - return register base
|
||||
* @hwif: interface
|
||||
* @r: config offset
|
||||
*
|
||||
* Turn a config register offset into the right address in either
|
||||
* PCI space or MMIO space to access the control register in question
|
||||
* including accounting for the unit shift.
|
||||
*/
|
||||
|
||||
static unsigned long sil680_seldev(struct ata_port *ap, struct ata_device *adev, int r)
|
||||
{
|
||||
unsigned long base = 0xA0 + r;
|
||||
base += (ap->port_no << 4);
|
||||
base |= adev->devno ? 2 : 0;
|
||||
return base;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* sil680_cable_detect - cable detection
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform cable detection. The SIL680 stores this in PCI config
|
||||
* space for us.
|
||||
*/
|
||||
|
||||
static int sil680_cable_detect(struct ata_port *ap) {
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
unsigned long addr = sil680_selreg(ap, 0);
|
||||
u8 ata66;
|
||||
pci_read_config_byte(pdev, addr, &ata66);
|
||||
if (ata66 & 1)
|
||||
return ATA_CBL_PATA80;
|
||||
else
|
||||
return ATA_CBL_PATA40;
|
||||
}
|
||||
|
||||
static int sil680_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
ap->cbl = sil680_cable_detect(ap);
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
/**
|
||||
* sil680_bus_reset - reset the SIL680 bus
|
||||
* @ap: ATA port to reset
|
||||
*
|
||||
* Perform the SIL680 housekeeping when doing an ATA bus reset
|
||||
*/
|
||||
|
||||
static int sil680_bus_reset(struct ata_port *ap,unsigned int *classes)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
unsigned long addr = sil680_selreg(ap, 0);
|
||||
u8 reset;
|
||||
|
||||
pci_read_config_byte(pdev, addr, &reset);
|
||||
pci_write_config_byte(pdev, addr, reset | 0x03);
|
||||
udelay(25);
|
||||
pci_write_config_byte(pdev, addr, reset);
|
||||
return ata_std_softreset(ap, classes);
|
||||
}
|
||||
|
||||
static void sil680_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, sil680_pre_reset, sil680_bus_reset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* sil680_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the SIL680 registers for PIO mode. Note that the task speed
|
||||
* registers are shared between the devices so we must pick the lowest
|
||||
* mode for command work.
|
||||
*/
|
||||
|
||||
static void sil680_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static u16 speed_p[5] = { 0x328A, 0x2283, 0x1104, 0x10C3, 0x10C1 };
|
||||
static u16 speed_t[5] = { 0x328A, 0x1281, 0x1281, 0x10C3, 0x10C1 };
|
||||
|
||||
unsigned long tfaddr = sil680_selreg(ap, 0x02);
|
||||
unsigned long addr = sil680_seldev(ap, adev, 0x04);
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
int pio = adev->pio_mode - XFER_PIO_0;
|
||||
int lowest_pio = pio;
|
||||
u16 reg;
|
||||
|
||||
struct ata_device *pair = ata_dev_pair(adev);
|
||||
|
||||
if (pair != NULL && adev->pio_mode > pair->pio_mode)
|
||||
lowest_pio = pair->pio_mode - XFER_PIO_0;
|
||||
|
||||
pci_write_config_word(pdev, addr, speed_p[pio]);
|
||||
pci_write_config_word(pdev, tfaddr, speed_t[lowest_pio]);
|
||||
|
||||
pci_read_config_word(pdev, tfaddr-2, ®);
|
||||
reg &= ~0x0200; /* Clear IORDY */
|
||||
if (ata_pio_need_iordy(adev))
|
||||
reg |= 0x0200; /* Enable IORDY */
|
||||
pci_write_config_word(pdev, tfaddr-2, reg);
|
||||
}
|
||||
|
||||
/**
|
||||
* sil680_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Program the MWDMA/UDMA modes for the sil680 k
|
||||
* chipset. The MWDMA mode values are pulled from a lookup table
|
||||
* while the chipset uses mode number for UDMA.
|
||||
*/
|
||||
|
||||
static void sil680_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
static u8 ultra_table[2][7] = {
|
||||
{ 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01, 0xFF }, /* 100MHz */
|
||||
{ 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 }, /* 133Mhz */
|
||||
};
|
||||
static u16 dma_table[3] = { 0x2208, 0x10C2, 0x10C1 };
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
unsigned long ma = sil680_seldev(ap, adev, 0x08);
|
||||
unsigned long ua = sil680_seldev(ap, adev, 0x0C);
|
||||
unsigned long addr_mask = 0x80 + 4 * ap->port_no;
|
||||
int port_shift = adev->devno * 4;
|
||||
u8 scsc, mode;
|
||||
u16 multi, ultra;
|
||||
|
||||
pci_read_config_byte(pdev, 0x8A, &scsc);
|
||||
pci_read_config_byte(pdev, addr_mask, &mode);
|
||||
pci_read_config_word(pdev, ma, &multi);
|
||||
pci_read_config_word(pdev, ua, &ultra);
|
||||
|
||||
/* Mask timing bits */
|
||||
ultra &= ~0x3F;
|
||||
mode &= ~(0x03 << port_shift);
|
||||
|
||||
/* Extract scsc */
|
||||
scsc = (scsc & 0x30) ? 1: 0;
|
||||
|
||||
if (adev->dma_mode >= XFER_UDMA_0) {
|
||||
multi = 0x10C1;
|
||||
ultra |= ultra_table[scsc][adev->dma_mode - XFER_UDMA_0];
|
||||
mode |= (0x03 << port_shift);
|
||||
} else {
|
||||
multi = dma_table[adev->dma_mode - XFER_MW_DMA_0];
|
||||
mode |= (0x02 << port_shift);
|
||||
}
|
||||
pci_write_config_byte(pdev, addr_mask, mode);
|
||||
pci_write_config_word(pdev, ma, multi);
|
||||
pci_write_config_word(pdev, ua, ultra);
|
||||
}
|
||||
|
||||
static struct scsi_host_template sil680_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations sil680_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = sil680_set_piomode,
|
||||
.set_dmamode = sil680_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = sil680_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int sil680_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &sil680_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7f,
|
||||
.port_ops = &sil680_port_ops
|
||||
};
|
||||
static struct ata_port_info info_slow = {
|
||||
.sht = &sil680_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f,
|
||||
.port_ops = &sil680_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = {&info, &info};
|
||||
static int printed_version;
|
||||
u32 class_rev = 0;
|
||||
u8 tmpbyte = 0;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
|
||||
|
||||
pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
|
||||
class_rev &= 0xff;
|
||||
/* FIXME: double check */
|
||||
pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255);
|
||||
|
||||
pci_write_config_byte(pdev, 0x80, 0x00);
|
||||
pci_write_config_byte(pdev, 0x84, 0x00);
|
||||
|
||||
pci_read_config_byte(pdev, 0x8A, &tmpbyte);
|
||||
|
||||
printk(KERN_INFO "sil680: BA5_EN = %d clock = %02X\n",
|
||||
tmpbyte & 1, tmpbyte & 0x30);
|
||||
|
||||
switch(tmpbyte & 0x30) {
|
||||
case 0x00:
|
||||
/* 133 clock attempt to force it on */
|
||||
pci_write_config_byte(pdev, 0x8A, tmpbyte|0x10);
|
||||
break;
|
||||
case 0x30:
|
||||
/* if clocking is disabled */
|
||||
/* 133 clock attempt to force it on */
|
||||
pci_write_config_byte(pdev, 0x8A, tmpbyte & ~0x20);
|
||||
break;
|
||||
case 0x10:
|
||||
/* 133 already */
|
||||
break;
|
||||
case 0x20:
|
||||
/* BIOS set PCI x2 clocking */
|
||||
break;
|
||||
}
|
||||
|
||||
pci_read_config_byte(pdev, 0x8A, &tmpbyte);
|
||||
printk(KERN_INFO "sil680: BA5_EN = %d clock = %02X\n",
|
||||
tmpbyte & 1, tmpbyte & 0x30);
|
||||
if ((tmpbyte & 0x30) == 0)
|
||||
port_info[0] = port_info[1] = &info_slow;
|
||||
|
||||
pci_write_config_byte(pdev, 0xA1, 0x72);
|
||||
pci_write_config_word(pdev, 0xA2, 0x328A);
|
||||
pci_write_config_dword(pdev, 0xA4, 0x62DD62DD);
|
||||
pci_write_config_dword(pdev, 0xA8, 0x43924392);
|
||||
pci_write_config_dword(pdev, 0xAC, 0x40094009);
|
||||
pci_write_config_byte(pdev, 0xB1, 0x72);
|
||||
pci_write_config_word(pdev, 0xB2, 0x328A);
|
||||
pci_write_config_dword(pdev, 0xB4, 0x62DD62DD);
|
||||
pci_write_config_dword(pdev, 0xB8, 0x43924392);
|
||||
pci_write_config_dword(pdev, 0xBC, 0x40094009);
|
||||
|
||||
switch(tmpbyte & 0x30) {
|
||||
case 0x00: printk(KERN_INFO "sil680: 100MHz clock.\n");break;
|
||||
case 0x10: printk(KERN_INFO "sil680: 133MHz clock.\n");break;
|
||||
case 0x20: printk(KERN_INFO "sil680: Using PCI clock.\n");break;
|
||||
/* This last case is _NOT_ ok */
|
||||
case 0x30: printk(KERN_ERR "sil680: Clock disabled ?\n");
|
||||
return -EIO;
|
||||
}
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id sil680[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver sil680_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = sil680,
|
||||
.probe = sil680_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init sil680_init(void)
|
||||
{
|
||||
return pci_register_driver(&sil680_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit sil680_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&sil680_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for SI680 PATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, sil680);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(sil680_init);
|
||||
module_exit(sil680_exit);
|
||||
1030
drivers/ata/pata_sis.c
Normal file
1030
drivers/ata/pata_sis.c
Normal file
File diff suppressed because it is too large
Load diff
388
drivers/ata/pata_sl82c105.c
Normal file
388
drivers/ata/pata_sl82c105.c
Normal file
|
|
@ -0,0 +1,388 @@
|
|||
/*
|
||||
* pata_sl82c105.c - SL82C105 PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Based in part on linux/drivers/ide/pci/sl82c105.c
|
||||
* SL82C105/Winbond 553 IDE driver
|
||||
*
|
||||
* and in part on the documentation and errata sheet
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_sl82c105"
|
||||
#define DRV_VERSION "0.2.2"
|
||||
|
||||
enum {
|
||||
/*
|
||||
* SL82C105 PCI config register 0x40 bits.
|
||||
*/
|
||||
CTRL_IDE_IRQB = (1 << 30),
|
||||
CTRL_IDE_IRQA = (1 << 28),
|
||||
CTRL_LEGIRQ = (1 << 11),
|
||||
CTRL_P1F16 = (1 << 5),
|
||||
CTRL_P1EN = (1 << 4),
|
||||
CTRL_P0F16 = (1 << 1),
|
||||
CTRL_P0EN = (1 << 0)
|
||||
};
|
||||
|
||||
/**
|
||||
* sl82c105_pre_reset - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generic probe init
|
||||
*/
|
||||
|
||||
static int sl82c105_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
static const struct pci_bits sl82c105_enable_bits[] = {
|
||||
{ 0x40, 1, 0x01, 0x01 },
|
||||
{ 0x40, 1, 0x10, 0x10 }
|
||||
};
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
if (ap->port_no && !pci_test_config_bits(pdev, &sl82c105_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
dev_printk(KERN_INFO, &pdev->dev, "port disabled. ignoring.\n");
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
|
||||
static void sl82c105_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, sl82c105_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* sl82c105_configure_piomode - set chip PIO timing
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
* @pio: PIO mode
|
||||
*
|
||||
* Called to do the PIO mode setup. Our timing registers are shared
|
||||
* so a configure_dmamode call will undo any work we do here and vice
|
||||
* versa
|
||||
*/
|
||||
|
||||
static void sl82c105_configure_piomode(struct ata_port *ap, struct ata_device *adev, int pio)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static u16 pio_timing[5] = {
|
||||
0x50D, 0x407, 0x304, 0x242, 0x240
|
||||
};
|
||||
u16 dummy;
|
||||
int timing = 0x44 + (8 * ap->port_no) + (4 * adev->devno);
|
||||
|
||||
pci_write_config_word(pdev, timing, pio_timing[pio]);
|
||||
/* Can we lose this oddity of the old driver */
|
||||
pci_read_config_word(pdev, timing, &dummy);
|
||||
}
|
||||
|
||||
/**
|
||||
* sl82c105_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the PIO mode setup. Our timing registers are shared
|
||||
* but we want to set the PIO timing by default.
|
||||
*/
|
||||
|
||||
static void sl82c105_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
sl82c105_configure_piomode(ap, adev, adev->pio_mode - XFER_PIO_0);
|
||||
}
|
||||
|
||||
/**
|
||||
* sl82c105_configure_dmamode - set DMA mode in chip
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Load DMA cycle times into the chip ready for a DMA transfer
|
||||
* to occur.
|
||||
*/
|
||||
|
||||
static void sl82c105_configure_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
static u16 dma_timing[3] = {
|
||||
0x707, 0x201, 0x200
|
||||
};
|
||||
u16 dummy;
|
||||
int timing = 0x44 + (8 * ap->port_no) + (4 * adev->devno);
|
||||
int dma = adev->dma_mode - XFER_MW_DMA_0;
|
||||
|
||||
pci_write_config_word(pdev, timing, dma_timing[dma]);
|
||||
/* Can we lose this oddity of the old driver */
|
||||
pci_read_config_word(pdev, timing, &dummy);
|
||||
}
|
||||
|
||||
/**
|
||||
* sl82c105_set_dmamode - set initial DMA mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Called to do the DMA mode setup. This replaces the PIO timings
|
||||
* for the device in question. Set appropriate PIO timings not DMA
|
||||
* timings at this point.
|
||||
*/
|
||||
|
||||
static void sl82c105_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
switch(adev->dma_mode) {
|
||||
case XFER_MW_DMA_0:
|
||||
sl82c105_configure_piomode(ap, adev, 1);
|
||||
break;
|
||||
case XFER_MW_DMA_1:
|
||||
sl82c105_configure_piomode(ap, adev, 3);
|
||||
break;
|
||||
case XFER_MW_DMA_2:
|
||||
sl82c105_configure_piomode(ap, adev, 3);
|
||||
break;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* sl82c105_reset_engine - Reset the DMA engine
|
||||
* @ap: ATA interface
|
||||
*
|
||||
* The sl82c105 has some serious problems with the DMA engine
|
||||
* when transfers don't run as expected or ATAPI is used. The
|
||||
* recommended fix is to reset the engine each use using a chip
|
||||
* test register.
|
||||
*/
|
||||
|
||||
static void sl82c105_reset_engine(struct ata_port *ap)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u16 val;
|
||||
|
||||
pci_read_config_word(pdev, 0x7E, &val);
|
||||
pci_write_config_word(pdev, 0x7E, val | 4);
|
||||
pci_write_config_word(pdev, 0x7E, val & ~4);
|
||||
}
|
||||
|
||||
/**
|
||||
* sl82c105_bmdma_start - DMA engine begin
|
||||
* @qc: ATA command
|
||||
*
|
||||
* Reset the DMA engine each use as recommended by the errata
|
||||
* document.
|
||||
*
|
||||
* FIXME: if we switch clock at BMDMA start/end we might get better
|
||||
* PIO performance on DMA capable devices.
|
||||
*/
|
||||
|
||||
static void sl82c105_bmdma_start(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
|
||||
sl82c105_reset_engine(ap);
|
||||
|
||||
/* Set the clocks for DMA */
|
||||
sl82c105_configure_dmamode(ap, qc->dev);
|
||||
/* Activate DMA */
|
||||
ata_bmdma_start(qc);
|
||||
}
|
||||
|
||||
/**
|
||||
* sl82c105_bmdma_end - DMA engine stop
|
||||
* @qc: ATA command
|
||||
*
|
||||
* Reset the DMA engine each use as recommended by the errata
|
||||
* document.
|
||||
*
|
||||
* This function is also called to turn off DMA when a timeout occurs
|
||||
* during DMA operation. In both cases we need to reset the engine,
|
||||
* so no actual eng_timeout handler is required.
|
||||
*
|
||||
* We assume bmdma_stop is always called if bmdma_start as called. If
|
||||
* not then we may need to wrap qc_issue.
|
||||
*/
|
||||
|
||||
static void sl82c105_bmdma_stop(struct ata_queued_cmd *qc)
|
||||
{
|
||||
struct ata_port *ap = qc->ap;
|
||||
|
||||
ata_bmdma_stop(qc);
|
||||
sl82c105_reset_engine(ap);
|
||||
|
||||
/* This will redo the initial setup of the DMA device to matching
|
||||
PIO timings */
|
||||
sl82c105_set_dmamode(ap, qc->dev);
|
||||
}
|
||||
|
||||
static struct scsi_host_template sl82c105_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations sl82c105_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = sl82c105_set_piomode,
|
||||
.set_dmamode = sl82c105_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.error_handler = sl82c105_error_handler,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = sl82c105_bmdma_start,
|
||||
.bmdma_stop = sl82c105_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* sl82c105_bridge_revision - find bridge version
|
||||
* @pdev: PCI device for the ATA function
|
||||
*
|
||||
* Locates the PCI bridge associated with the ATA function and
|
||||
* providing it is a Winbond 553 reports the revision. If it cannot
|
||||
* find a revision or the right device it returns -1
|
||||
*/
|
||||
|
||||
static int sl82c105_bridge_revision(struct pci_dev *pdev)
|
||||
{
|
||||
struct pci_dev *bridge;
|
||||
u8 rev;
|
||||
|
||||
/*
|
||||
* The bridge should be part of the same device, but function 0.
|
||||
*/
|
||||
bridge = pci_get_slot(pdev->bus,
|
||||
PCI_DEVFN(PCI_SLOT(pdev->devfn), 0));
|
||||
if (!bridge)
|
||||
return -1;
|
||||
|
||||
/*
|
||||
* Make sure it is a Winbond 553 and is an ISA bridge.
|
||||
*/
|
||||
if (bridge->vendor != PCI_VENDOR_ID_WINBOND ||
|
||||
bridge->device != PCI_DEVICE_ID_WINBOND_83C553 ||
|
||||
bridge->class >> 8 != PCI_CLASS_BRIDGE_ISA) {
|
||||
pci_dev_put(bridge);
|
||||
return -1;
|
||||
}
|
||||
/*
|
||||
* We need to find function 0's revision, not function 1
|
||||
*/
|
||||
pci_read_config_byte(bridge, PCI_REVISION_ID, &rev);
|
||||
|
||||
pci_dev_put(bridge);
|
||||
return rev;
|
||||
}
|
||||
|
||||
|
||||
static int sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info_dma = {
|
||||
.sht = &sl82c105_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &sl82c105_port_ops
|
||||
};
|
||||
static struct ata_port_info info_early = {
|
||||
.sht = &sl82c105_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.port_ops = &sl82c105_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info_early, &info_early };
|
||||
u32 val;
|
||||
int rev;
|
||||
|
||||
rev = sl82c105_bridge_revision(dev);
|
||||
|
||||
if (rev == -1)
|
||||
dev_printk(KERN_WARNING, &dev->dev, "pata_sl82c105: Unable to find bridge, disabling DMA.\n");
|
||||
else if (rev <= 5)
|
||||
dev_printk(KERN_WARNING, &dev->dev, "pata_sl82c105: Early bridge revision, no DMA available.\n");
|
||||
else {
|
||||
port_info[0] = &info_dma;
|
||||
port_info[1] = &info_dma;
|
||||
}
|
||||
|
||||
pci_read_config_dword(dev, 0x40, &val);
|
||||
val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16;
|
||||
pci_write_config_dword(dev, 0x40, val);
|
||||
|
||||
|
||||
return ata_pci_init_one(dev, port_info, 1); /* For now */
|
||||
}
|
||||
|
||||
static struct pci_device_id sl82c105[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver sl82c105_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = sl82c105,
|
||||
.probe = sl82c105_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init sl82c105_init(void)
|
||||
{
|
||||
return pci_register_driver(&sl82c105_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit sl82c105_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&sl82c105_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Sl82c105");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, sl82c105);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(sl82c105_init);
|
||||
module_exit(sl82c105_exit);
|
||||
285
drivers/ata/pata_triflex.c
Normal file
285
drivers/ata/pata_triflex.c
Normal file
|
|
@ -0,0 +1,285 @@
|
|||
/*
|
||||
* pata_triflex.c - Compaq PATA for new ATA layer
|
||||
* (C) 2005 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* based upon
|
||||
*
|
||||
* triflex.c
|
||||
*
|
||||
* IDE Chipset driver for the Compaq TriFlex IDE controller.
|
||||
*
|
||||
* Known to work with the Compaq Workstation 5x00 series.
|
||||
*
|
||||
* Copyright (C) 2002 Hewlett-Packard Development Group, L.P.
|
||||
* Author: Torben Mathiasen <torben.mathiasen@hp.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
* Loosely based on the piix & svwks drivers.
|
||||
*
|
||||
* Documentation:
|
||||
* Not publically available.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_triflex"
|
||||
#define DRV_VERSION "0.2.5"
|
||||
|
||||
/**
|
||||
* triflex_probe_init - probe begin
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Set up cable type and use generic probe init
|
||||
*/
|
||||
|
||||
static int triflex_probe_init(struct ata_port *ap)
|
||||
{
|
||||
static const struct pci_bits triflex_enable_bits[] = {
|
||||
{ 0x80, 1, 0x01, 0x01 },
|
||||
{ 0x80, 1, 0x02, 0x02 }
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
if (!pci_test_config_bits(pdev, &triflex_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void triflex_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, triflex_probe_init, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* triflex_load_timing - timing configuration
|
||||
* @ap: ATA interface
|
||||
* @adev: Device on the bus
|
||||
* @speed: speed to configure
|
||||
*
|
||||
* The Triflex has one set of timings per device per channel. This
|
||||
* means we must do some switching. As the PIO and DMA timings don't
|
||||
* match we have to do some reloading unlike PIIX devices where tuning
|
||||
* tricks can avoid it.
|
||||
*/
|
||||
|
||||
static void triflex_load_timing(struct ata_port *ap, struct ata_device *adev, int speed)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 timing = 0;
|
||||
u32 triflex_timing, old_triflex_timing;
|
||||
int channel_offset = ap->port_no ? 0x74: 0x70;
|
||||
unsigned int is_slave = (adev->devno != 0);
|
||||
|
||||
|
||||
pci_read_config_dword(pdev, channel_offset, &old_triflex_timing);
|
||||
triflex_timing = old_triflex_timing;
|
||||
|
||||
switch(speed)
|
||||
{
|
||||
case XFER_MW_DMA_2:
|
||||
timing = 0x0103;break;
|
||||
case XFER_MW_DMA_1:
|
||||
timing = 0x0203;break;
|
||||
case XFER_MW_DMA_0:
|
||||
timing = 0x0808;break;
|
||||
case XFER_SW_DMA_2:
|
||||
case XFER_SW_DMA_1:
|
||||
case XFER_SW_DMA_0:
|
||||
timing = 0x0F0F;break;
|
||||
case XFER_PIO_4:
|
||||
timing = 0x0202;break;
|
||||
case XFER_PIO_3:
|
||||
timing = 0x0204;break;
|
||||
case XFER_PIO_2:
|
||||
timing = 0x0404;break;
|
||||
case XFER_PIO_1:
|
||||
timing = 0x0508;break;
|
||||
case XFER_PIO_0:
|
||||
timing = 0x0808;break;
|
||||
default:
|
||||
BUG();
|
||||
}
|
||||
triflex_timing &= ~ (0xFFFF << (16 * is_slave));
|
||||
triflex_timing |= (timing << (16 * is_slave));
|
||||
|
||||
if (triflex_timing != old_triflex_timing)
|
||||
pci_write_config_dword(pdev, channel_offset, triflex_timing);
|
||||
}
|
||||
|
||||
/**
|
||||
* triflex_set_piomode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* Use the timing loader to set up the PIO mode. We have to do this
|
||||
* because DMA start/stop will only be called once DMA occurs. If there
|
||||
* has been no DMA then the PIO timings are still needed.
|
||||
*/
|
||||
static void triflex_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
triflex_load_timing(ap, adev, adev->pio_mode);
|
||||
}
|
||||
|
||||
/**
|
||||
* triflex_dma_start - DMA start callback
|
||||
* @qc: Command in progress
|
||||
*
|
||||
* Usually drivers set the DMA timing at the point the set_dmamode call
|
||||
* is made. Triflex however requires we load new timings on the
|
||||
* transition or keep matching PIO/DMA pairs (ie MWDMA2/PIO4 etc).
|
||||
* We load the DMA timings just before starting DMA and then restore
|
||||
* the PIO timing when the DMA is finished.
|
||||
*/
|
||||
|
||||
static void triflex_bmdma_start(struct ata_queued_cmd *qc)
|
||||
{
|
||||
triflex_load_timing(qc->ap, qc->dev, qc->dev->dma_mode);
|
||||
ata_bmdma_start(qc);
|
||||
}
|
||||
|
||||
/**
|
||||
* triflex_dma_stop - DMA stop callback
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
*
|
||||
* We loaded new timings in dma_start, as a result we need to restore
|
||||
* the PIO timings in dma_stop so that the next command issue gets the
|
||||
* right clock values.
|
||||
*/
|
||||
|
||||
static void triflex_bmdma_stop(struct ata_queued_cmd *qc)
|
||||
{
|
||||
ata_bmdma_stop(qc);
|
||||
triflex_load_timing(qc->ap, qc->dev, qc->dev->pio_mode);
|
||||
}
|
||||
|
||||
static struct scsi_host_template triflex_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations triflex_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = triflex_set_piomode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = triflex_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = triflex_bmdma_start,
|
||||
.bmdma_stop = triflex_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static int triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
||||
{
|
||||
static struct ata_port_info info = {
|
||||
.sht = &triflex_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &triflex_port_ops
|
||||
};
|
||||
static struct ata_port_info *port_info[2] = { &info, &info };
|
||||
static int printed_version;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
|
||||
|
||||
return ata_pci_init_one(dev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id triflex[] = {
|
||||
{ PCI_VENDOR_ID_COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE,
|
||||
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver triflex_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = triflex,
|
||||
.probe = triflex_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init triflex_init(void)
|
||||
{
|
||||
return pci_register_driver(&triflex_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit triflex_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&triflex_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for Compaq Triflex");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, triflex);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(triflex_init);
|
||||
module_exit(triflex_exit);
|
||||
568
drivers/ata/pata_via.c
Normal file
568
drivers/ata/pata_via.c
Normal file
|
|
@ -0,0 +1,568 @@
|
|||
/*
|
||||
* pata_via.c - VIA PATA for new ATA layer
|
||||
* (C) 2005-2006 Red Hat Inc
|
||||
* Alan Cox <alan@redhat.com>
|
||||
*
|
||||
* Documentation
|
||||
* Most chipset documentation available under NDA only
|
||||
*
|
||||
* VIA version guide
|
||||
* VIA VT82C561 - early design, uses ata_generic currently
|
||||
* VIA VT82C576 - MWDMA, 33Mhz
|
||||
* VIA VT82C586 - MWDMA, 33Mhz
|
||||
* VIA VT82C586a - Added UDMA to 33Mhz
|
||||
* VIA VT82C586b - UDMA33
|
||||
* VIA VT82C596a - Nonfunctional UDMA66
|
||||
* VIA VT82C596b - Working UDMA66
|
||||
* VIA VT82C686 - Nonfunctional UDMA66
|
||||
* VIA VT82C686a - Working UDMA66
|
||||
* VIA VT82C686b - Updated to UDMA100
|
||||
* VIA VT8231 - UDMA100
|
||||
* VIA VT8233 - UDMA100
|
||||
* VIA VT8233a - UDMA133
|
||||
* VIA VT8233c - UDMA100
|
||||
* VIA VT8235 - UDMA133
|
||||
* VIA VT8237 - UDMA133
|
||||
*
|
||||
* Most registers remain compatible across chips. Others start reserved
|
||||
* and acquire sensible semantics if set to 1 (eg cable detect). A few
|
||||
* exceptions exist, notably around the FIFO settings.
|
||||
*
|
||||
* One additional quirk of the VIA design is that like ALi they use few
|
||||
* PCI IDs for a lot of chips.
|
||||
*
|
||||
* Based heavily on:
|
||||
*
|
||||
* Version 3.38
|
||||
*
|
||||
* VIA IDE driver for Linux. Supported southbridges:
|
||||
*
|
||||
* vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b,
|
||||
* vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a,
|
||||
* vt8235, vt8237
|
||||
*
|
||||
* Copyright (c) 2000-2002 Vojtech Pavlik
|
||||
*
|
||||
* Based on the work of:
|
||||
* Michel Aubry
|
||||
* Jeff Garzik
|
||||
* Andre Hedrick
|
||||
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/blkdev.h>
|
||||
#include <linux/delay.h>
|
||||
#include <scsi/scsi_host.h>
|
||||
#include <linux/libata.h>
|
||||
|
||||
#define DRV_NAME "pata_via"
|
||||
#define DRV_VERSION "0.1.13"
|
||||
|
||||
/*
|
||||
* The following comes directly from Vojtech Pavlik's ide/pci/via82cxxx
|
||||
* driver.
|
||||
*/
|
||||
|
||||
enum {
|
||||
VIA_UDMA = 0x007,
|
||||
VIA_UDMA_NONE = 0x000,
|
||||
VIA_UDMA_33 = 0x001,
|
||||
VIA_UDMA_66 = 0x002,
|
||||
VIA_UDMA_100 = 0x003,
|
||||
VIA_UDMA_133 = 0x004,
|
||||
VIA_BAD_PREQ = 0x010, /* Crashes if PREQ# till DDACK# set */
|
||||
VIA_BAD_CLK66 = 0x020, /* 66 MHz clock doesn't work correctly */
|
||||
VIA_SET_FIFO = 0x040, /* Needs to have FIFO split set */
|
||||
VIA_NO_UNMASK = 0x080, /* Doesn't work with IRQ unmasking on */
|
||||
VIA_BAD_ID = 0x100, /* Has wrong vendor ID (0x1107) */
|
||||
VIA_BAD_AST = 0x200, /* Don't touch Address Setup Timing */
|
||||
VIA_NO_ENABLES = 0x400, /* Has no enablebits */
|
||||
};
|
||||
|
||||
/*
|
||||
* VIA SouthBridge chips.
|
||||
*/
|
||||
|
||||
static const struct via_isa_bridge {
|
||||
const char *name;
|
||||
u16 id;
|
||||
u8 rev_min;
|
||||
u8 rev_max;
|
||||
u16 flags;
|
||||
} via_isa_bridges[] = {
|
||||
{ "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
|
||||
{ "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST | VIA_NO_ENABLES},
|
||||
{ "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
|
||||
{ "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
|
||||
{ "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
|
||||
{ "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST },
|
||||
{ "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, VIA_UDMA_100 },
|
||||
{ "vt8233", PCI_DEVICE_ID_VIA_8233_0, 0x00, 0x2f, VIA_UDMA_100 },
|
||||
{ "vt8231", PCI_DEVICE_ID_VIA_8231, 0x00, 0x2f, VIA_UDMA_100 },
|
||||
{ "vt82c686b", PCI_DEVICE_ID_VIA_82C686, 0x40, 0x4f, VIA_UDMA_100 },
|
||||
{ "vt82c686a", PCI_DEVICE_ID_VIA_82C686, 0x10, 0x2f, VIA_UDMA_66 },
|
||||
{ "vt82c686", PCI_DEVICE_ID_VIA_82C686, 0x00, 0x0f, VIA_UDMA_33 | VIA_BAD_CLK66 },
|
||||
{ "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, VIA_UDMA_66 },
|
||||
{ "vt82c596a", PCI_DEVICE_ID_VIA_82C596, 0x00, 0x0f, VIA_UDMA_33 | VIA_BAD_CLK66 },
|
||||
{ "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, VIA_UDMA_33 | VIA_SET_FIFO },
|
||||
{ "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, VIA_UDMA_33 | VIA_SET_FIFO | VIA_BAD_PREQ },
|
||||
{ "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, VIA_UDMA_33 | VIA_SET_FIFO },
|
||||
{ "vt82c586a", PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, VIA_UDMA_33 | VIA_SET_FIFO },
|
||||
{ "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, VIA_UDMA_NONE | VIA_SET_FIFO },
|
||||
{ "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK },
|
||||
{ "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
/**
|
||||
* via_cable_detect - cable detection
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Perform cable detection. Actually for the VIA case the BIOS
|
||||
* already did this for us. We read the values provided by the
|
||||
* BIOS. If you are using an 8235 in a non-PC configuration you
|
||||
* may need to update this code.
|
||||
*
|
||||
* Hotplug also impacts on this.
|
||||
*/
|
||||
|
||||
static int via_cable_detect(struct ata_port *ap) {
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
u32 ata66;
|
||||
|
||||
pci_read_config_dword(pdev, 0x50, &ata66);
|
||||
/* Check both the drive cable reporting bits, we might not have
|
||||
two drives */
|
||||
if (ata66 & (0x10100000 >> (16 * ap->port_no)))
|
||||
return ATA_CBL_PATA80;
|
||||
else
|
||||
return ATA_CBL_PATA40;
|
||||
}
|
||||
|
||||
static int via_pre_reset(struct ata_port *ap)
|
||||
{
|
||||
const struct via_isa_bridge *config = ap->host->private_data;
|
||||
|
||||
if (!(config->flags & VIA_NO_ENABLES)) {
|
||||
static const struct pci_bits via_enable_bits[] = {
|
||||
{ 0x40, 1, 0x02, 0x02 },
|
||||
{ 0x40, 1, 0x01, 0x01 }
|
||||
};
|
||||
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
|
||||
if (!pci_test_config_bits(pdev, &via_enable_bits[ap->port_no])) {
|
||||
ata_port_disable(ap);
|
||||
printk(KERN_INFO "ata%u: port disabled. ignoring.\n", ap->id);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
if ((config->flags & VIA_UDMA) >= VIA_UDMA_66)
|
||||
ap->cbl = via_cable_detect(ap);
|
||||
else
|
||||
ap->cbl = ATA_CBL_PATA40;
|
||||
return ata_std_prereset(ap);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* via_error_handler - reset for VIA chips
|
||||
* @ap: ATA port
|
||||
*
|
||||
* Handle the reset callback for the later chips with cable detect
|
||||
*/
|
||||
|
||||
static void via_error_handler(struct ata_port *ap)
|
||||
{
|
||||
ata_bmdma_drive_eh(ap, via_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
|
||||
}
|
||||
|
||||
/**
|
||||
* via_do_set_mode - set initial PIO mode data
|
||||
* @ap: ATA interface
|
||||
* @adev: ATA device
|
||||
* @mode: ATA mode being programmed
|
||||
* @tdiv: Clocks per PCI clock
|
||||
* @set_ast: Set to program address setup
|
||||
* @udma_type: UDMA mode/format of registers
|
||||
*
|
||||
* Program the VIA registers for DMA and PIO modes. Uses the ata timing
|
||||
* support in order to compute modes.
|
||||
*
|
||||
* FIXME: Hotplug will require we serialize multiple mode changes
|
||||
* on the two channels.
|
||||
*/
|
||||
|
||||
static void via_do_set_mode(struct ata_port *ap, struct ata_device *adev, int mode, int tdiv, int set_ast, int udma_type)
|
||||
{
|
||||
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
||||
struct ata_device *peer = ata_dev_pair(adev);
|
||||
struct ata_timing t, p;
|
||||
static int via_clock = 33333; /* Bus clock in kHZ - ought to be tunable one day */
|
||||
unsigned long T = 1000000000 / via_clock;
|
||||
unsigned long UT = T/tdiv;
|
||||
int ut;
|
||||
int offset = 3 - (2*ap->port_no) - adev->devno;
|
||||
|
||||
|
||||
/* Calculate the timing values we require */
|
||||
ata_timing_compute(adev, mode, &t, T, UT);
|
||||
|
||||
/* We share 8bit timing so we must merge the constraints */
|
||||
if (peer) {
|
||||
if (peer->pio_mode) {
|
||||
ata_timing_compute(peer, peer->pio_mode, &p, T, UT);
|
||||
ata_timing_merge(&p, &t, &t, ATA_TIMING_8BIT);
|
||||
}
|
||||
}
|
||||
|
||||
/* Address setup is programmable but breaks on UDMA133 setups */
|
||||
if (set_ast) {
|
||||
u8 setup; /* 2 bits per drive */
|
||||
int shift = 2 * offset;
|
||||
|
||||
pci_read_config_byte(pdev, 0x4C, &setup);
|
||||
setup &= ~(3 << shift);
|
||||
setup |= FIT(t.setup, 1, 4) << shift; /* 1,4 or 1,4 - 1 FIXME */
|
||||
pci_write_config_byte(pdev, 0x4C, setup);
|
||||
}
|
||||
|
||||
/* Load the PIO mode bits */
|
||||
pci_write_config_byte(pdev, 0x4F - ap->port_no,
|
||||
((FIT(t.act8b, 1, 16) - 1) << 4) | (FIT(t.rec8b, 1, 16) - 1));
|
||||
pci_write_config_byte(pdev, 0x48 + offset,
|
||||
((FIT(t.active, 1, 16) - 1) << 4) | (FIT(t.recover, 1, 16) - 1));
|
||||
|
||||
/* Load the UDMA bits according to type */
|
||||
switch(udma_type) {
|
||||
default:
|
||||
/* BUG() ? */
|
||||
/* fall through */
|
||||
case 33:
|
||||
ut = t.udma ? (0xe0 | (FIT(t.udma, 2, 5) - 2)) : 0x03;
|
||||
break;
|
||||
case 66:
|
||||
ut = t.udma ? (0xe8 | (FIT(t.udma, 2, 9) - 2)) : 0x0f;
|
||||
break;
|
||||
case 100:
|
||||
ut = t.udma ? (0xe0 | (FIT(t.udma, 2, 9) - 2)) : 0x07;
|
||||
break;
|
||||
case 133:
|
||||
ut = t.udma ? (0xe0 | (FIT(t.udma, 2, 9) - 2)) : 0x07;
|
||||
break;
|
||||
}
|
||||
/* Set UDMA unless device is not UDMA capable */
|
||||
if (udma_type)
|
||||
pci_write_config_byte(pdev, 0x50 + offset, ut);
|
||||
}
|
||||
|
||||
static void via_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
const struct via_isa_bridge *config = ap->host->private_data;
|
||||
int set_ast = (config->flags & VIA_BAD_AST) ? 0 : 1;
|
||||
int mode = config->flags & VIA_UDMA;
|
||||
static u8 tclock[5] = { 1, 1, 2, 3, 4 };
|
||||
static u8 udma[5] = { 0, 33, 66, 100, 133 };
|
||||
|
||||
via_do_set_mode(ap, adev, adev->pio_mode, tclock[mode], set_ast, udma[mode]);
|
||||
}
|
||||
|
||||
static void via_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
||||
{
|
||||
const struct via_isa_bridge *config = ap->host->private_data;
|
||||
int set_ast = (config->flags & VIA_BAD_AST) ? 0 : 1;
|
||||
int mode = config->flags & VIA_UDMA;
|
||||
static u8 tclock[5] = { 1, 1, 2, 3, 4 };
|
||||
static u8 udma[5] = { 0, 33, 66, 100, 133 };
|
||||
|
||||
via_do_set_mode(ap, adev, adev->dma_mode, tclock[mode], set_ast, udma[mode]);
|
||||
}
|
||||
|
||||
static struct scsi_host_template via_sht = {
|
||||
.module = THIS_MODULE,
|
||||
.name = DRV_NAME,
|
||||
.ioctl = ata_scsi_ioctl,
|
||||
.queuecommand = ata_scsi_queuecmd,
|
||||
.can_queue = ATA_DEF_QUEUE,
|
||||
.this_id = ATA_SHT_THIS_ID,
|
||||
.sg_tablesize = LIBATA_MAX_PRD,
|
||||
.max_sectors = ATA_MAX_SECTORS,
|
||||
.cmd_per_lun = ATA_SHT_CMD_PER_LUN,
|
||||
.emulated = ATA_SHT_EMULATED,
|
||||
.use_clustering = ATA_SHT_USE_CLUSTERING,
|
||||
.proc_name = DRV_NAME,
|
||||
.dma_boundary = ATA_DMA_BOUNDARY,
|
||||
.slave_configure = ata_scsi_slave_config,
|
||||
.bios_param = ata_std_bios_param,
|
||||
};
|
||||
|
||||
static struct ata_port_operations via_port_ops = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = via_set_piomode,
|
||||
.set_dmamode = via_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = via_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
static struct ata_port_operations via_port_ops_noirq = {
|
||||
.port_disable = ata_port_disable,
|
||||
.set_piomode = via_set_piomode,
|
||||
.set_dmamode = via_set_dmamode,
|
||||
.mode_filter = ata_pci_default_filter,
|
||||
|
||||
.tf_load = ata_tf_load,
|
||||
.tf_read = ata_tf_read,
|
||||
.check_status = ata_check_status,
|
||||
.exec_command = ata_exec_command,
|
||||
.dev_select = ata_std_dev_select,
|
||||
|
||||
.freeze = ata_bmdma_freeze,
|
||||
.thaw = ata_bmdma_thaw,
|
||||
.error_handler = via_error_handler,
|
||||
.post_internal_cmd = ata_bmdma_post_internal_cmd,
|
||||
|
||||
.bmdma_setup = ata_bmdma_setup,
|
||||
.bmdma_start = ata_bmdma_start,
|
||||
.bmdma_stop = ata_bmdma_stop,
|
||||
.bmdma_status = ata_bmdma_status,
|
||||
|
||||
.qc_prep = ata_qc_prep,
|
||||
.qc_issue = ata_qc_issue_prot,
|
||||
.eng_timeout = ata_eng_timeout,
|
||||
.data_xfer = ata_pio_data_xfer_noirq,
|
||||
|
||||
.irq_handler = ata_interrupt,
|
||||
.irq_clear = ata_bmdma_irq_clear,
|
||||
|
||||
.port_start = ata_port_start,
|
||||
.port_stop = ata_port_stop,
|
||||
.host_stop = ata_host_stop
|
||||
};
|
||||
|
||||
/**
|
||||
* via_init_one - discovery callback
|
||||
* @pdev: PCI device ID
|
||||
* @id: PCI table info
|
||||
*
|
||||
* A VIA IDE interface has been discovered. Figure out what revision
|
||||
* and perform configuration work before handing it to the ATA layer
|
||||
*/
|
||||
|
||||
static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
|
||||
{
|
||||
/* Early VIA without UDMA support */
|
||||
static struct ata_port_info via_mwdma_info = {
|
||||
.sht = &via_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &via_port_ops
|
||||
};
|
||||
/* Ditto with IRQ masking required */
|
||||
static struct ata_port_info via_mwdma_info_borked = {
|
||||
.sht = &via_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.port_ops = &via_port_ops_noirq,
|
||||
};
|
||||
/* VIA UDMA 33 devices (and borked 66) */
|
||||
static struct ata_port_info via_udma33_info = {
|
||||
.sht = &via_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7,
|
||||
.port_ops = &via_port_ops
|
||||
};
|
||||
/* VIA UDMA 66 devices */
|
||||
static struct ata_port_info via_udma66_info = {
|
||||
.sht = &via_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x1f,
|
||||
.port_ops = &via_port_ops
|
||||
};
|
||||
/* VIA UDMA 100 devices */
|
||||
static struct ata_port_info via_udma100_info = {
|
||||
.sht = &via_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x3f,
|
||||
.port_ops = &via_port_ops
|
||||
};
|
||||
/* UDMA133 with bad AST (All current 133) */
|
||||
static struct ata_port_info via_udma133_info = {
|
||||
.sht = &via_sht,
|
||||
.flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
|
||||
.pio_mask = 0x1f,
|
||||
.mwdma_mask = 0x07,
|
||||
.udma_mask = 0x7f, /* FIXME: should check north bridge */
|
||||
.port_ops = &via_port_ops
|
||||
};
|
||||
struct ata_port_info *port_info[2], *type;
|
||||
struct pci_dev *isa = NULL;
|
||||
const struct via_isa_bridge *config;
|
||||
static int printed_version;
|
||||
u8 t;
|
||||
u8 enable;
|
||||
u32 timing;
|
||||
|
||||
if (!printed_version++)
|
||||
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
|
||||
|
||||
/* To find out how the IDE will behave and what features we
|
||||
actually have to look at the bridge not the IDE controller */
|
||||
for (config = via_isa_bridges; config->id; config++)
|
||||
if ((isa = pci_get_device(PCI_VENDOR_ID_VIA +
|
||||
!!(config->flags & VIA_BAD_ID),
|
||||
config->id, NULL))) {
|
||||
|
||||
pci_read_config_byte(isa, PCI_REVISION_ID, &t);
|
||||
if (t >= config->rev_min &&
|
||||
t <= config->rev_max)
|
||||
break;
|
||||
pci_dev_put(isa);
|
||||
}
|
||||
|
||||
if (!config->id) {
|
||||
printk(KERN_WARNING "via: Unknown VIA SouthBridge, disabling.\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
pci_dev_put(isa);
|
||||
|
||||
/* 0x40 low bits indicate enabled channels */
|
||||
pci_read_config_byte(pdev, 0x40 , &enable);
|
||||
enable &= 3;
|
||||
if (enable == 0) {
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/* Initialise the FIFO for the enabled channels. */
|
||||
if (config->flags & VIA_SET_FIFO) {
|
||||
u8 fifo_setting[4] = {0x00, 0x60, 0x00, 0x20};
|
||||
u8 fifo;
|
||||
|
||||
pci_read_config_byte(pdev, 0x43, &fifo);
|
||||
|
||||
/* Clear PREQ# until DDACK# for errata */
|
||||
if (config->flags & VIA_BAD_PREQ)
|
||||
fifo &= 0x7F;
|
||||
else
|
||||
fifo &= 0x9f;
|
||||
/* Turn on FIFO for enabled channels */
|
||||
fifo |= fifo_setting[enable];
|
||||
pci_write_config_byte(pdev, 0x43, fifo);
|
||||
}
|
||||
/* Clock set up */
|
||||
switch(config->flags & VIA_UDMA) {
|
||||
case VIA_UDMA_NONE:
|
||||
if (config->flags & VIA_NO_UNMASK)
|
||||
type = &via_mwdma_info_borked;
|
||||
else
|
||||
type = &via_mwdma_info;
|
||||
break;
|
||||
case VIA_UDMA_33:
|
||||
type = &via_udma33_info;
|
||||
break;
|
||||
case VIA_UDMA_66:
|
||||
type = &via_udma66_info;
|
||||
/* The 66 MHz devices require we enable the clock */
|
||||
pci_read_config_dword(pdev, 0x50, &timing);
|
||||
timing |= 0x80008;
|
||||
pci_write_config_dword(pdev, 0x50, timing);
|
||||
break;
|
||||
case VIA_UDMA_100:
|
||||
type = &via_udma100_info;
|
||||
break;
|
||||
case VIA_UDMA_133:
|
||||
type = &via_udma133_info;
|
||||
break;
|
||||
default:
|
||||
WARN_ON(1);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
if (config->flags & VIA_BAD_CLK66) {
|
||||
/* Disable the 66MHz clock on problem devices */
|
||||
pci_read_config_dword(pdev, 0x50, &timing);
|
||||
timing &= ~0x80008;
|
||||
pci_write_config_dword(pdev, 0x50, timing);
|
||||
}
|
||||
|
||||
/* We have established the device type, now fire it up */
|
||||
type->private_data = (void *)config;
|
||||
|
||||
port_info[0] = port_info[1] = type;
|
||||
return ata_pci_init_one(pdev, port_info, 2);
|
||||
}
|
||||
|
||||
static const struct pci_device_id via[] = {
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576_1), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_6410), },
|
||||
{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_SATA_EIDE), },
|
||||
{ 0, },
|
||||
};
|
||||
|
||||
static struct pci_driver via_pci_driver = {
|
||||
.name = DRV_NAME,
|
||||
.id_table = via,
|
||||
.probe = via_init_one,
|
||||
.remove = ata_pci_remove_one
|
||||
};
|
||||
|
||||
static int __init via_init(void)
|
||||
{
|
||||
return pci_register_driver(&via_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
static void __exit via_exit(void)
|
||||
{
|
||||
pci_unregister_driver(&via_pci_driver);
|
||||
}
|
||||
|
||||
|
||||
MODULE_AUTHOR("Alan Cox");
|
||||
MODULE_DESCRIPTION("low-level driver for VIA PATA");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DEVICE_TABLE(pci, via);
|
||||
MODULE_VERSION(DRV_VERSION);
|
||||
|
||||
module_init(via_init);
|
||||
module_exit(via_exit);
|
||||
|
|
@ -46,7 +46,7 @@
|
|||
#undef ATA_VERBOSE_DEBUG /* yet more debugging output */
|
||||
#undef ATA_IRQ_TRAP /* define to ack screaming irqs */
|
||||
#undef ATA_NDEBUG /* define to disable quick runtime checks */
|
||||
#undef ATA_ENABLE_PATA /* define to enable PATA support in some
|
||||
#define ATA_ENABLE_PATA /* define to enable PATA support in some
|
||||
* low-level drivers */
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue