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USB: add Cypress c67x00 OTG controller HCD driver

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This patch adds HCD support for the Cypress c67x00 family of devices.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Peter Korsgaard 2008-04-27 08:59:45 +02:00 committed by Greg Kroah-Hartman
parent b02b371e6d
commit e9b29ffc51
9 changed files with 1836 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/usb/Makefile
View file

@ -17,6 +17,8 @@ obj-$(CONFIG_USB_SL811_HCD) += host/
obj-$(CONFIG_USB_U132_HCD) += host/
obj-$(CONFIG_USB_R8A66597_HCD) += host/
obj-$(CONFIG_USB_C67X00_HCD) += c67x00/
obj-$(CONFIG_USB_ACM) += class/
obj-$(CONFIG_USB_PRINTER) += class/

9
drivers/usb/c67x00/Makefile Normal file
View file

@ -0,0 +1,9 @@
#
# Makefile for Cypress C67X00 USB Controller
#
ccflags-$(CONFIG_USB_DEBUG) += -DDEBUG
obj-$(CONFIG_USB_C67X00_HCD) += c67x00.o
c67x00-objs := c67x00-drv.o c67x00-ll-hpi.o c67x00-hcd.o c67x00-sched.o

13
drivers/usb/c67x00/c67x00-drv.c
View file

@ -41,6 +41,7 @@
#include <linux/usb/c67x00.h>
#include "c67x00.h"
#include "c67x00-hcd.h"
static void c67x00_probe_sie(struct c67x00_sie *sie,
struct c67x00_device *dev, int sie_num)
@ -51,6 +52,10 @@ static void c67x00_probe_sie(struct c67x00_sie *sie,
sie->mode = c67x00_sie_config(dev->pdata->sie_config, sie_num);
switch (sie->mode) {
case C67X00_SIE_HOST:
c67x00_hcd_probe(sie);
break;
case C67X00_SIE_UNUSED:
dev_info(sie_dev(sie),
"Not using SIE %d as requested\n", sie->sie_num);
@ -66,6 +71,14 @@ static void c67x00_probe_sie(struct c67x00_sie *sie,
static void c67x00_remove_sie(struct c67x00_sie *sie)
{
switch (sie->mode) {
case C67X00_SIE_HOST:
c67x00_hcd_remove(sie);
break;
default:
break;
}
}
static irqreturn_t c67x00_irq(int irq, void *__dev)

412
drivers/usb/c67x00/c67x00-hcd.c Normal file
View file

@ -0,0 +1,412 @@
/*
* c67x00-hcd.c: Cypress C67X00 USB Host Controller Driver
*
* Copyright (C) 2006-2008 Barco N.V.
* Derived from the Cypress cy7c67200/300 ezusb linux driver and
* based on multiple host controller drivers inside the linux kernel.
*
* 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 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA.
*/
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/usb.h>
#include "c67x00.h"
#include "c67x00-hcd.h"
/* --------------------------------------------------------------------------
* Root Hub Support
*/
static __u8 c67x00_hub_des[] = {
0x09, /* __u8 bLength; */
0x29, /* __u8 bDescriptorType; Hub-descriptor */
0x02, /* __u8 bNbrPorts; */
0x00, /* __u16 wHubCharacteristics; */
0x00, /* (per-port OC, no power switching) */
0x32, /* __u8 bPwrOn2pwrGood; 2ms */
0x00, /* __u8 bHubContrCurrent; 0 mA */
0x00, /* __u8 DeviceRemovable; ** 7 Ports max ** */
0xff, /* __u8 PortPwrCtrlMask; ** 7 ports max ** */
};
static void c67x00_hub_reset_host_port(struct c67x00_sie *sie, int port)
{
struct c67x00_hcd *c67x00 = sie->private_data;
unsigned long flags;
c67x00_ll_husb_reset(sie, port);
spin_lock_irqsave(&c67x00->lock, flags);
c67x00_ll_husb_reset_port(sie, port);
spin_unlock_irqrestore(&c67x00->lock, flags);
c67x00_ll_set_husb_eot(sie->dev, DEFAULT_EOT);
}
static int c67x00_hub_status_data(struct usb_hcd *hcd, char *buf)
{
struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
struct c67x00_sie *sie = c67x00->sie;
u16 status;
int i;
*buf = 0;
status = c67x00_ll_usb_get_status(sie);
for (i = 0; i < C67X00_PORTS; i++)
if (status & PORT_CONNECT_CHANGE(i))
*buf |= (1 << i);
/* bit 0 denotes hub change, b1..n port change */
*buf <<= 1;
return !!*buf;
}
static int c67x00_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
u16 wIndex, char *buf, u16 wLength)
{
struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
struct c67x00_sie *sie = c67x00->sie;
u16 status, usb_status;
int len = 0;
unsigned int port = wIndex-1;
u16 wPortChange, wPortStatus;
switch (typeReq) {
case GetHubStatus:
*(__le32 *) buf = cpu_to_le32(0);
len = 4; /* hub power */
break;
case GetPortStatus:
if (wIndex > C67X00_PORTS)
return -EPIPE;
status = c67x00_ll_usb_get_status(sie);
usb_status = c67x00_ll_get_usb_ctl(sie);
wPortChange = 0;
if (status & PORT_CONNECT_CHANGE(port))
wPortChange |= USB_PORT_STAT_C_CONNECTION;
wPortStatus = USB_PORT_STAT_POWER;
if (!(status & PORT_SE0_STATUS(port)))
wPortStatus |= USB_PORT_STAT_CONNECTION;
if (usb_status & LOW_SPEED_PORT(port)) {
wPortStatus |= USB_PORT_STAT_LOW_SPEED;
c67x00->low_speed_ports |= (1 << port);
} else
c67x00->low_speed_ports &= ~(1 << port);
if (usb_status & SOF_EOP_EN(port))
wPortStatus |= USB_PORT_STAT_ENABLE;
*(__le16 *) buf = cpu_to_le16(wPortStatus);
*(__le16 *) (buf + 2) = cpu_to_le16(wPortChange);
len = 4;
break;
case SetHubFeature: /* We don't implement these */
case ClearHubFeature:
switch (wValue) {
case C_HUB_OVER_CURRENT:
case C_HUB_LOCAL_POWER:
len = 0;
break;
default:
return -EPIPE;
}
break;
case SetPortFeature:
if (wIndex > C67X00_PORTS)
return -EPIPE;
switch (wValue) {
case USB_PORT_FEAT_SUSPEND:
dev_dbg(c67x00_hcd_dev(c67x00),
"SetPortFeature %d (SUSPEND)\n", port);
len = 0;
break;
case USB_PORT_FEAT_RESET:
c67x00_hub_reset_host_port(sie, port);
len = 0;
break;
case USB_PORT_FEAT_POWER:
/* Power always enabled */
len = 0;
break;
default:
dev_dbg(c67x00_hcd_dev(c67x00),
"%s: SetPortFeature %d (0x%04x) Error!\n",
__func__, port, wValue);
return -EPIPE;
}
break;
case ClearPortFeature:
if (wIndex > C67X00_PORTS)
return -EPIPE;
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
/* Reset the port so that the c67x00 also notices the
* disconnect */
c67x00_hub_reset_host_port(sie, port);
len = 0;
break;
case USB_PORT_FEAT_C_ENABLE:
dev_dbg(c67x00_hcd_dev(c67x00),
"ClearPortFeature (%d): C_ENABLE\n", port);
len = 0;
break;
case USB_PORT_FEAT_SUSPEND:
dev_dbg(c67x00_hcd_dev(c67x00),
"ClearPortFeature (%d): SUSPEND\n", port);
len = 0;
break;
case USB_PORT_FEAT_C_SUSPEND:
dev_dbg(c67x00_hcd_dev(c67x00),
"ClearPortFeature (%d): C_SUSPEND\n", port);
len = 0;
break;
case USB_PORT_FEAT_POWER:
dev_dbg(c67x00_hcd_dev(c67x00),
"ClearPortFeature (%d): POWER\n", port);
return -EPIPE;
case USB_PORT_FEAT_C_CONNECTION:
c67x00_ll_usb_clear_status(sie,
PORT_CONNECT_CHANGE(port));
len = 0;
break;
case USB_PORT_FEAT_C_OVER_CURRENT:
dev_dbg(c67x00_hcd_dev(c67x00),
"ClearPortFeature (%d): OVER_CURRENT\n", port);
len = 0;
break;
case USB_PORT_FEAT_C_RESET:
dev_dbg(c67x00_hcd_dev(c67x00),
"ClearPortFeature (%d): C_RESET\n", port);
len = 0;
break;
default:
dev_dbg(c67x00_hcd_dev(c67x00),
"%s: ClearPortFeature %d (0x%04x) Error!\n",
__func__, port, wValue);
return -EPIPE;
}
break;
case GetHubDescriptor:
len = min_t(unsigned int, sizeof(c67x00_hub_des), wLength);
memcpy(buf, c67x00_hub_des, len);
break;
default:
dev_dbg(c67x00_hcd_dev(c67x00), "%s: unknown\n", __func__);
return -EPIPE;
}
return 0;
}
/* ---------------------------------------------------------------------
* Main part of host controller driver
*/
/**
* c67x00_hcd_irq
*
* This function is called from the interrupt handler in c67x00-drv.c
*/
static void c67x00_hcd_irq(struct c67x00_sie *sie, u16 int_status, u16 msg)
{
struct c67x00_hcd *c67x00 = sie->private_data;
struct usb_hcd *hcd = c67x00_hcd_to_hcd(c67x00);
/* Handle sie message flags */
if (msg) {
if (msg & HUSB_TDListDone)
c67x00_sched_kick(c67x00);
else
dev_warn(c67x00_hcd_dev(c67x00),
"Unknown SIE msg flag(s): 0x%04x\n", msg);
}
if (unlikely(hcd->state == HC_STATE_HALT))
return;
if (!test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags))
return;
/* Handle Start of frame events */
if (int_status & SOFEOP_FLG(sie->sie_num)) {
c67x00_ll_usb_clear_status(sie, SOF_EOP_IRQ_FLG);
c67x00_sched_kick(c67x00);
set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
}
}
/**
* c67x00_hcd_start: Host controller start hook
*/
static int c67x00_hcd_start(struct usb_hcd *hcd)
{
hcd->uses_new_polling = 1;
hcd->state = HC_STATE_RUNNING;
hcd->poll_rh = 1;
return 0;
}
/**
* c67x00_hcd_stop: Host controller stop hook
*/
static void c67x00_hcd_stop(struct usb_hcd *hcd)
{
/* Nothing to do */
}
static int c67x00_hcd_get_frame(struct usb_hcd *hcd)
{
struct c67x00_hcd *c67x00 = hcd_to_c67x00_hcd(hcd);
u16 temp_val;
dev_dbg(c67x00_hcd_dev(c67x00), "%s\n", __func__);
temp_val = c67x00_ll_husb_get_frame(c67x00->sie);
temp_val &= HOST_FRAME_MASK;
return temp_val ? (temp_val - 1) : HOST_FRAME_MASK;
}
static struct hc_driver c67x00_hc_driver = {
.description = "c67x00-hcd",
.product_desc = "Cypress C67X00 Host Controller",
.hcd_priv_size = sizeof(struct c67x00_hcd),
.flags = HCD_USB11 | HCD_MEMORY,
/*
* basic lifecycle operations
*/
.start = c67x00_hcd_start,
.stop = c67x00_hcd_stop,
/*
* managing i/o requests and associated device resources
*/
.urb_enqueue = c67x00_urb_enqueue,
.urb_dequeue = c67x00_urb_dequeue,
.endpoint_disable = c67x00_endpoint_disable,
/*
* scheduling support
*/
.get_frame_number = c67x00_hcd_get_frame,
/*
* root hub support
*/
.hub_status_data = c67x00_hub_status_data,
.hub_control = c67x00_hub_control,
};
/* ---------------------------------------------------------------------
* Setup/Teardown routines
*/
int c67x00_hcd_probe(struct c67x00_sie *sie)
{
struct c67x00_hcd *c67x00;
struct usb_hcd *hcd;
unsigned long flags;
int retval;
if (usb_disabled())
return -ENODEV;
hcd = usb_create_hcd(&c67x00_hc_driver, sie_dev(sie), "c67x00_sie");
if (!hcd) {
retval = -ENOMEM;
goto err0;
}
c67x00 = hcd_to_c67x00_hcd(hcd);
spin_lock_init(&c67x00->lock);
c67x00->sie = sie;
INIT_LIST_HEAD(&c67x00->list[PIPE_ISOCHRONOUS]);
INIT_LIST_HEAD(&c67x00->list[PIPE_INTERRUPT]);
INIT_LIST_HEAD(&c67x00->list[PIPE_CONTROL]);
INIT_LIST_HEAD(&c67x00->list[PIPE_BULK]);
c67x00->urb_count = 0;
INIT_LIST_HEAD(&c67x00->td_list);
c67x00->td_base_addr = CY_HCD_BUF_ADDR + SIE_TD_OFFSET(sie->sie_num);
c67x00->buf_base_addr = CY_HCD_BUF_ADDR + SIE_BUF_OFFSET(sie->sie_num);
c67x00->max_frame_bw = MAX_FRAME_BW_STD;
c67x00_ll_husb_init_host_port(sie);
init_completion(&c67x00->endpoint_disable);
retval = c67x00_sched_start_scheduler(c67x00);
if (retval)
goto err1;
retval = usb_add_hcd(hcd, 0, 0);
if (retval) {
dev_dbg(sie_dev(sie), "%s: usb_add_hcd returned %d\n",
__func__, retval);
goto err2;
}
spin_lock_irqsave(&sie->lock, flags);
sie->private_data = c67x00;
sie->irq = c67x00_hcd_irq;
spin_unlock_irqrestore(&sie->lock, flags);
return retval;
err2:
c67x00_sched_stop_scheduler(c67x00);
err1:
usb_put_hcd(hcd);
err0:
return retval;
}
/* may be called with controller, bus, and devices active */
void c67x00_hcd_remove(struct c67x00_sie *sie)
{
struct c67x00_hcd *c67x00 = sie->private_data;
struct usb_hcd *hcd = c67x00_hcd_to_hcd(c67x00);
c67x00_sched_stop_scheduler(c67x00);
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
}

133
drivers/usb/c67x00/c67x00-hcd.h Normal file
View file

@ -0,0 +1,133 @@
/*
* c67x00-hcd.h: Cypress C67X00 USB HCD
*
* Copyright (C) 2006-2008 Barco N.V.
* Derived from the Cypress cy7c67200/300 ezusb linux driver and
* based on multiple host controller drivers inside the linux kernel.
*
* 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 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301 USA.
*/
#ifndef _USB_C67X00_HCD_H
#define _USB_C67X00_HCD_H
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/list.h>
#include <linux/usb.h>
#include "../core/hcd.h"
#include "c67x00.h"
/*
* The following parameters depend on the CPU speed, bus speed, ...
* These can be tuned for specific use cases, e.g. if isochronous transfers
* are very important, bandwith can be sacrificed to guarantee that the
* 1ms deadline will be met.
* If bulk transfers are important, the MAX_FRAME_BW can be increased,
* but some (or many) isochronous deadlines might not be met.
*
* The values are specified in bittime.
*/
/*
* The current implementation switches between _STD (default) and _ISO (when
* isochronous transfers are scheduled), in order to optimize the throughput
* in normal cicrumstances, but also provide good isochronous behaviour.
*
* Bandwidth is described in bit time so with a 12MHz USB clock and 1ms
* frames; there are 12000 bit times per frame.
*/
#define TOTAL_FRAME_BW 12000
#define DEFAULT_EOT 2250
#define MAX_FRAME_BW_STD (TOTAL_FRAME_BW - DEFAULT_EOT)
#define MAX_FRAME_BW_ISO 2400
/*
* Periodic transfers may only use 90% of the full frame, but as
* we currently don't even use 90% of the full frame, we may
* use the full usable time for periodic transfers.
*/
#define MAX_PERIODIC_BW(full_bw) full_bw
/* -------------------------------------------------------------------------- */
struct c67x00_hcd {
spinlock_t lock;
struct c67x00_sie *sie;
unsigned int low_speed_ports; /* bitmask of low speed ports */
unsigned int urb_count;
unsigned int urb_iso_count;
struct list_head list[4]; /* iso, int, ctrl, bulk */
#if PIPE_BULK != 3
#error "Sanity check failed, this code presumes PIPE_... to range from 0 to 3"
#endif
/* USB bandwidth allocated to td_list */
int bandwidth_allocated;
/* USB bandwidth allocated for isoc/int transfer */
int periodic_bw_allocated;
struct list_head td_list;
int max_frame_bw;
u16 td_base_addr;
u16 buf_base_addr;
u16 next_td_addr;
u16 next_buf_addr;
struct tasklet_struct tasklet;
struct completion endpoint_disable;
u16 current_frame;
u16 last_frame;
};
static inline struct c67x00_hcd *hcd_to_c67x00_hcd(struct usb_hcd *hcd)
{
return (struct c67x00_hcd *)(hcd->hcd_priv);
}
static inline struct usb_hcd *c67x00_hcd_to_hcd(struct c67x00_hcd *c67x00)
{
return container_of((void *)c67x00, struct usb_hcd, hcd_priv);
}
/* ---------------------------------------------------------------------
* Functions used by c67x00-drv
*/
int c67x00_hcd_probe(struct c67x00_sie *sie);
void c67x00_hcd_remove(struct c67x00_sie *sie);
/* ---------------------------------------------------------------------
* Transfer Descriptor scheduling functions
*/
int c67x00_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags);
int c67x00_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status);
void c67x00_endpoint_disable(struct usb_hcd *hcd,
struct usb_host_endpoint *ep);
void c67x00_hcd_msg_received(struct c67x00_sie *sie, u16 msg);
void c67x00_sched_kick(struct c67x00_hcd *c67x00);
int c67x00_sched_start_scheduler(struct c67x00_hcd *c67x00);
void c67x00_sched_stop_scheduler(struct c67x00_hcd *c67x00);
#define c67x00_hcd_dev(x) (c67x00_hcd_to_hcd(x)->self.controller)
#endif /* _USB_C67X00_HCD_H */

75
drivers/usb/c67x00/c67x00-ll-hpi.c
View file

@ -296,6 +296,81 @@ static int c67x00_comm_exec_int(struct c67x00_device *dev, u16 nr,
return rc;
}
/* -------------------------------------------------------------------------- */
/* Host specific functions */
void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value)
{
mutex_lock(&dev->hpi.lcp.mutex);
hpi_write_word(dev, HUSB_pEOT, value);
mutex_unlock(&dev->hpi.lcp.mutex);
}
static inline void c67x00_ll_husb_sie_init(struct c67x00_sie *sie)
{
struct c67x00_device *dev = sie->dev;
struct c67x00_lcp_int_data data;
int rc;
rc = c67x00_comm_exec_int(dev, HUSB_SIE_INIT_INT(sie->sie_num), &data);
BUG_ON(rc); /* No return path for error code; crash spectacularly */
}
void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port)
{
struct c67x00_device *dev = sie->dev;
struct c67x00_lcp_int_data data;
int rc;
data.regs[0] = 50; /* Reset USB port for 50ms */
data.regs[1] = port | (sie->sie_num << 1);
rc = c67x00_comm_exec_int(dev, HUSB_RESET_INT, &data);
BUG_ON(rc); /* No return path for error code; crash spectacularly */
}
void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr)
{
hpi_write_word(sie->dev, HUSB_SIE_pCurrentTDPtr(sie->sie_num), addr);
}
u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie)
{
return hpi_read_word(sie->dev, HUSB_SIE_pCurrentTDPtr(sie->sie_num));
}
u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie)
{
return hpi_read_word(sie->dev, HOST_FRAME_REG(sie->sie_num));
}
void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie)
{
/* Set port into host mode */
hpi_set_bits(sie->dev, USB_CTL_REG(sie->sie_num), HOST_MODE);
c67x00_ll_husb_sie_init(sie);
/* Clear interrupts */
c67x00_ll_usb_clear_status(sie, HOST_STAT_MASK);
/* Check */
if (!(hpi_read_word(sie->dev, USB_CTL_REG(sie->sie_num)) & HOST_MODE))
dev_warn(sie_dev(sie),
"SIE %d not set to host mode\n", sie->sie_num);
}
void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port)
{
/* Clear connect change */
c67x00_ll_usb_clear_status(sie, PORT_CONNECT_CHANGE(port));
/* Enable interrupts */
hpi_set_bits(sie->dev, HPI_IRQ_ROUTING_REG,
SOFEOP_TO_CPU_EN(sie->sie_num));
hpi_set_bits(sie->dev, HOST_IRQ_EN_REG(sie->sie_num),
SOF_EOP_IRQ_EN | DONE_IRQ_EN);
/* Enable pull down transistors */
hpi_set_bits(sie->dev, USB_CTL_REG(sie->sie_num), PORT_RES_EN(port));
}
/* -------------------------------------------------------------------------- */
void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status)

1170
drivers/usb/c67x00/c67x00-sched.c Normal file
View file

File diff suppressed because it is too large Load diff

9
drivers/usb/c67x00/c67x00.h
View file

@ -274,6 +274,15 @@ void c67x00_ll_write_mem_le16(struct c67x00_device *dev, u16 addr,
void c67x00_ll_read_mem_le16(struct c67x00_device *dev, u16 addr,
void *data, int len);
/* Host specific functions */
void c67x00_ll_set_husb_eot(struct c67x00_device *dev, u16 value);
void c67x00_ll_husb_reset(struct c67x00_sie *sie, int port);
void c67x00_ll_husb_set_current_td(struct c67x00_sie *sie, u16 addr);
u16 c67x00_ll_husb_get_current_td(struct c67x00_sie *sie);
u16 c67x00_ll_husb_get_frame(struct c67x00_sie *sie);
void c67x00_ll_husb_init_host_port(struct c67x00_sie *sie);
void c67x00_ll_husb_reset_port(struct c67x00_sie *sie, int port);
/* Called by c67x00_irq to handle lcp interrupts */
void c67x00_ll_irq(struct c67x00_device *dev, u16 int_status);

13
drivers/usb/host/Kconfig
View file

@ -4,6 +4,19 @@
comment "USB Host Controller Drivers"
depends on USB
config USB_C67X00_HCD
tristate "Cypress C67x00 HCD support"
depends on USB
help
The Cypress C67x00 (EZ-Host/EZ-OTG) chips are dual-role
host/peripheral/OTG USB controllers.
Enable this option to support this chip in host controller mode.
If unsure, say N.
To compile this driver as a module, choose M here: the
module will be called c67x00.
config USB_EHCI_HCD
tristate "EHCI HCD (USB 2.0) support"
depends on USB && USB_ARCH_HAS_EHCI