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	USB2NET : SR9700 : One chip USB 1.1 USB2NET SR9700Device Driver Support
Signed-off-by: Liu Junliang <liujunliang_ljl@163.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
		
							parent
							
								
									a77dcb8c8f
								
							
						
					
					
						commit
						c9b37458e9
					
				
					 4 changed files with 742 additions and 0 deletions
				
			
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						 | 
				
			
			@ -268,6 +268,14 @@ config USB_NET_DM9601
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	  This option adds support for Davicom DM9601 based USB 1.1
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	  10/100 Ethernet adapters.
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config USB_NET_SR9700
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	tristate "CoreChip-sz SR9700 based USB 1.1 10/100 ethernet devices"
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	depends on USB_USBNET
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	select CRC32
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	help
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	  This option adds support for CoreChip-sz SR9700 based USB 1.1
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	  10/100 Ethernet adapters.
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config USB_NET_SMSC75XX
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	tristate "SMSC LAN75XX based USB 2.0 gigabit ethernet devices"
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	depends on USB_USBNET
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			@ -14,6 +14,7 @@ obj-$(CONFIG_USB_NET_AX88179_178A)      += ax88179_178a.o
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obj-$(CONFIG_USB_NET_CDCETHER)	+= cdc_ether.o r815x.o
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obj-$(CONFIG_USB_NET_CDC_EEM)	+= cdc_eem.o
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obj-$(CONFIG_USB_NET_DM9601)	+= dm9601.o
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obj-$(CONFIG_USB_NET_SR9700)	+= sr9700.o
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obj-$(CONFIG_USB_NET_SMSC75XX)	+= smsc75xx.o
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obj-$(CONFIG_USB_NET_SMSC95XX)	+= smsc95xx.o
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obj-$(CONFIG_USB_NET_GL620A)	+= gl620a.o
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						 | 
				
			
			
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										560
									
								
								drivers/net/usb/sr9700.c
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										560
									
								
								drivers/net/usb/sr9700.c
									
									
									
									
									
										Normal file
									
								
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			@ -0,0 +1,560 @@
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/*
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 * CoreChip-sz SR9700 one chip USB 1.1 Ethernet Devices
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 *
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 * Author : Liu Junliang <liujunliang_ljl@163.com>
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 *
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 * Based on dm9601.c
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 *
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 * This file is licensed under the terms of the GNU General Public License
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 * version 2.  This program is licensed "as is" without any warranty of any
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 * kind, whether express or implied.
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 */
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#include <linux/module.h>
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#include <linux/sched.h>
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#include <linux/stddef.h>
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#include <linux/init.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/ethtool.h>
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#include <linux/mii.h>
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#include <linux/usb.h>
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#include <linux/crc32.h>
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#include <linux/usb/usbnet.h>
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#include "sr9700.h"
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static int sr_read(struct usbnet *dev, u8 reg, u16 length, void *data)
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{
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	int err;
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	err = usbnet_read_cmd(dev, SR_RD_REGS, SR_REQ_RD_REG, 0, reg, data,
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			      length);
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	if ((err != length) && (err >= 0))
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		err = -EINVAL;
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	return err;
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}
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static int sr_write(struct usbnet *dev, u8 reg, u16 length, void *data)
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{
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	int err;
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	err = usbnet_write_cmd(dev, SR_WR_REGS, SR_REQ_WR_REG, 0, reg, data,
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			       length);
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	if ((err >= 0) && (err < length))
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		err = -EINVAL;
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	return err;
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}
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static int sr_read_reg(struct usbnet *dev, u8 reg, u8 *value)
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{
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	return sr_read(dev, reg, 1, value);
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}
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static int sr_write_reg(struct usbnet *dev, u8 reg, u8 value)
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{
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	return usbnet_write_cmd(dev, SR_WR_REGS, SR_REQ_WR_REG,
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				value, reg, NULL, 0);
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}
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static void sr_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)
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{
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	usbnet_write_cmd_async(dev, SR_WR_REGS, SR_REQ_WR_REG,
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			       0, reg, data, length);
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}
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static void sr_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
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{
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	usbnet_write_cmd_async(dev, SR_WR_REGS, SR_REQ_WR_REG,
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			       value, reg, NULL, 0);
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}
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static int wait_phy_eeprom_ready(struct usbnet *dev, int phy)
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{
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	int i;
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	for (i = 0; i < SR_SHARE_TIMEOUT; i++) {
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		u8 tmp = 0;
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		int ret;
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		udelay(1);
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		ret = sr_read_reg(dev, EPCR, &tmp);
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		if (ret < 0)
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			return ret;
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		/* ready */
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		if (!(tmp & EPCR_ERRE))
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			return 0;
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	}
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	netdev_err(dev->net, "%s write timed out!\n", phy ? "phy" : "eeprom");
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	return -EIO;
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}
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static int sr_share_read_word(struct usbnet *dev, int phy, u8 reg,
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			      __le16 *value)
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{
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	int ret;
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	mutex_lock(&dev->phy_mutex);
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	sr_write_reg(dev, EPAR, phy ? (reg | EPAR_PHY_ADR) : reg);
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	sr_write_reg(dev, EPCR, phy ? (EPCR_EPOS | EPCR_ERPRR) : EPCR_ERPRR);
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	ret = wait_phy_eeprom_ready(dev, phy);
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	if (ret < 0)
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		goto out_unlock;
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	sr_write_reg(dev, EPCR, 0x0);
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	ret = sr_read(dev, EPDR, 2, value);
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	netdev_dbg(dev->net, "read shared %d 0x%02x returned 0x%04x, %d\n",
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		   phy, reg, *value, ret);
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out_unlock:
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	mutex_unlock(&dev->phy_mutex);
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	return ret;
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}
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static int sr_share_write_word(struct usbnet *dev, int phy, u8 reg,
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			       __le16 value)
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{
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	int ret;
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	mutex_lock(&dev->phy_mutex);
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	ret = sr_write(dev, EPDR, 2, &value);
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	if (ret < 0)
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		goto out_unlock;
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	sr_write_reg(dev, EPAR, phy ? (reg | EPAR_PHY_ADR) : reg);
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	sr_write_reg(dev, EPCR, phy ? (EPCR_WEP | EPCR_EPOS | EPCR_ERPRW) :
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		    (EPCR_WEP | EPCR_ERPRW));
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	ret = wait_phy_eeprom_ready(dev, phy);
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	if (ret < 0)
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		goto out_unlock;
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	sr_write_reg(dev, EPCR, 0x0);
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out_unlock:
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	mutex_unlock(&dev->phy_mutex);
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	return ret;
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}
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static int sr_read_eeprom_word(struct usbnet *dev, u8 offset, void *value)
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{
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	return sr_share_read_word(dev, 0, offset, value);
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}
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static int sr9700_get_eeprom_len(struct net_device *netdev)
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{
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	return SR_EEPROM_LEN;
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}
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static int sr9700_get_eeprom(struct net_device *netdev,
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			     struct ethtool_eeprom *eeprom, u8 *data)
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{
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	struct usbnet *dev = netdev_priv(netdev);
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	__le16 *buf = (__le16 *)data;
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	int ret = 0;
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	int i;
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	/* access is 16bit */
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	if ((eeprom->offset & 0x01) || (eeprom->len & 0x01))
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		return -EINVAL;
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	for (i = 0; i < eeprom->len / 2; i++) {
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		ret = sr_read_eeprom_word(dev, eeprom->offset / 2 + i, buf + i);
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		if (ret < 0)
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			break;
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	}
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	return ret;
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}
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static int sr_mdio_read(struct net_device *netdev, int phy_id, int loc)
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{
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	struct usbnet *dev = netdev_priv(netdev);
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	__le16 res;
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	int rc = 0;
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	if (phy_id) {
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		netdev_dbg(netdev, "Only internal phy supported\n");
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		return 0;
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	}
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	/* Access NSR_LINKST bit for link status instead of MII_BMSR */
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	if (loc == MII_BMSR) {
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		u8 value;
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		sr_read_reg(dev, NSR, &value);
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		if (value & NSR_LINKST)
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			rc = 1;
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	}
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	sr_share_read_word(dev, 1, loc, &res);
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	if (rc == 1)
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		res = le16_to_cpu(res) | BMSR_LSTATUS;
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	else
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		res = le16_to_cpu(res) & ~BMSR_LSTATUS;
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	netdev_dbg(netdev, "sr_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
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		   phy_id, loc, res);
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	return res;
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}
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static void sr_mdio_write(struct net_device *netdev, int phy_id, int loc,
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			  int val)
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{
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	struct usbnet *dev = netdev_priv(netdev);
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	__le16 res = cpu_to_le16(val);
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	if (phy_id) {
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		netdev_dbg(netdev, "Only internal phy supported\n");
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		return;
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	}
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	netdev_dbg(netdev, "sr_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
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		   phy_id, loc, val);
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	sr_share_write_word(dev, 1, loc, res);
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}
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static u32 sr9700_get_link(struct net_device *netdev)
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{
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	struct usbnet *dev = netdev_priv(netdev);
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	u8 value = 0;
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	int rc = 0;
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	/* Get the Link Status directly */
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	sr_read_reg(dev, NSR, &value);
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	if (value & NSR_LINKST)
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		rc = 1;
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	return rc;
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}
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static int sr9700_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
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{
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	struct usbnet *dev = netdev_priv(netdev);
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	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
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}
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static const struct ethtool_ops sr9700_ethtool_ops = {
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	.get_drvinfo	= usbnet_get_drvinfo,
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	.get_link	= sr9700_get_link,
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	.get_msglevel	= usbnet_get_msglevel,
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	.set_msglevel	= usbnet_set_msglevel,
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	.get_eeprom_len	= sr9700_get_eeprom_len,
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	.get_eeprom	= sr9700_get_eeprom,
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	.get_settings	= usbnet_get_settings,
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	.set_settings	= usbnet_set_settings,
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	.nway_reset	= usbnet_nway_reset,
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};
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static void sr9700_set_multicast(struct net_device *netdev)
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{
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	struct usbnet *dev = netdev_priv(netdev);
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	/* We use the 20 byte dev->data for our 8 byte filter buffer
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	 * to avoid allocating memory that is tricky to free later
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	 */
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	u8 *hashes = (u8 *)&dev->data;
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	/* rx_ctl setting : enable, disable_long, disable_crc */
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	u8 rx_ctl = RCR_RXEN | RCR_DIS_CRC | RCR_DIS_LONG;
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	memset(hashes, 0x00, SR_MCAST_SIZE);
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	/* broadcast address */
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	hashes[SR_MCAST_SIZE - 1] |= SR_MCAST_ADDR_FLAG;
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	if (netdev->flags & IFF_PROMISC) {
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		rx_ctl |= RCR_PRMSC;
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	} else if (netdev->flags & IFF_ALLMULTI ||
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		   netdev_mc_count(netdev) > SR_MCAST_MAX) {
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		rx_ctl |= RCR_RUNT;
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	} else if (!netdev_mc_empty(netdev)) {
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		struct netdev_hw_addr *ha;
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		||||
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		netdev_for_each_mc_addr(ha, netdev) {
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			u32 crc = ether_crc(ETH_ALEN, ha->addr) >> 26;
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			hashes[crc >> 3] |= 1 << (crc & 0x7);
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		}
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	}
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	sr_write_async(dev, MAR, SR_MCAST_SIZE, hashes);
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	sr_write_reg_async(dev, RCR, rx_ctl);
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}
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		||||
static int sr9700_set_mac_address(struct net_device *netdev, void *p)
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		||||
{
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		||||
	struct usbnet *dev = netdev_priv(netdev);
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		||||
	struct sockaddr *addr = p;
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		||||
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		||||
	if (!is_valid_ether_addr(addr->sa_data)) {
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		||||
		netdev_err(netdev, "not setting invalid mac address %pM\n",
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			   addr->sa_data);
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		return -EINVAL;
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		||||
	}
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		||||
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	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
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		||||
	sr_write_async(dev, PAR, 6, netdev->dev_addr);
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	return 0;
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}
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static const struct net_device_ops sr9700_netdev_ops = {
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	.ndo_open		= usbnet_open,
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	.ndo_stop		= usbnet_stop,
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	.ndo_start_xmit		= usbnet_start_xmit,
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		||||
	.ndo_tx_timeout		= usbnet_tx_timeout,
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		||||
	.ndo_change_mtu		= usbnet_change_mtu,
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		||||
	.ndo_validate_addr	= eth_validate_addr,
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		||||
	.ndo_do_ioctl		= sr9700_ioctl,
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	.ndo_set_rx_mode	= sr9700_set_multicast,
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	.ndo_set_mac_address	= sr9700_set_mac_address,
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};
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		||||
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		||||
static int sr9700_bind(struct usbnet *dev, struct usb_interface *intf)
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		||||
{
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	struct net_device *netdev;
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		||||
	struct mii_if_info *mii;
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		||||
	int ret;
 | 
			
		||||
 | 
			
		||||
	ret = usbnet_get_endpoints(dev, intf);
 | 
			
		||||
	if (ret)
 | 
			
		||||
		goto out;
 | 
			
		||||
 | 
			
		||||
	netdev = dev->net;
 | 
			
		||||
 | 
			
		||||
	netdev->netdev_ops = &sr9700_netdev_ops;
 | 
			
		||||
	netdev->ethtool_ops = &sr9700_ethtool_ops;
 | 
			
		||||
	netdev->hard_header_len += SR_TX_OVERHEAD;
 | 
			
		||||
	dev->hard_mtu = netdev->mtu + netdev->hard_header_len;
 | 
			
		||||
	/* bulkin buffer is preferably not less than 3K */
 | 
			
		||||
	dev->rx_urb_size = 3072;
 | 
			
		||||
 | 
			
		||||
	mii = &dev->mii;
 | 
			
		||||
	mii->dev = netdev;
 | 
			
		||||
	mii->mdio_read = sr_mdio_read;
 | 
			
		||||
	mii->mdio_write = sr_mdio_write;
 | 
			
		||||
	mii->phy_id_mask = 0x1f;
 | 
			
		||||
	mii->reg_num_mask = 0x1f;
 | 
			
		||||
 | 
			
		||||
	sr_write_reg(dev, NCR, NCR_RST);
 | 
			
		||||
	udelay(20);
 | 
			
		||||
 | 
			
		||||
	/* read MAC
 | 
			
		||||
	 * After Chip Power on, the Chip will reload the MAC from
 | 
			
		||||
	 * EEPROM automatically to PAR. In case there is no EEPROM externally,
 | 
			
		||||
	 * a default MAC address is stored in PAR for making chip work properly.
 | 
			
		||||
	 */
 | 
			
		||||
	if (sr_read(dev, PAR, ETH_ALEN, netdev->dev_addr) < 0) {
 | 
			
		||||
		netdev_err(netdev, "Error reading MAC address\n");
 | 
			
		||||
		ret = -ENODEV;
 | 
			
		||||
		goto out;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/* power up and reset phy */
 | 
			
		||||
	sr_write_reg(dev, PRR, PRR_PHY_RST);
 | 
			
		||||
	/* at least 10ms, here 20ms for safe */
 | 
			
		||||
	mdelay(20);
 | 
			
		||||
	sr_write_reg(dev, PRR, 0);
 | 
			
		||||
	/* at least 1ms, here 2ms for reading right register */
 | 
			
		||||
	udelay(2 * 1000);
 | 
			
		||||
 | 
			
		||||
	/* receive broadcast packets */
 | 
			
		||||
	sr9700_set_multicast(netdev);
 | 
			
		||||
 | 
			
		||||
	sr_mdio_write(netdev, mii->phy_id, MII_BMCR, BMCR_RESET);
 | 
			
		||||
	sr_mdio_write(netdev, mii->phy_id, MII_ADVERTISE, ADVERTISE_ALL |
 | 
			
		||||
		      ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
 | 
			
		||||
	mii_nway_restart(mii);
 | 
			
		||||
 | 
			
		||||
out:
 | 
			
		||||
	return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int sr9700_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 | 
			
		||||
{
 | 
			
		||||
	struct sk_buff *sr_skb;
 | 
			
		||||
	int len;
 | 
			
		||||
 | 
			
		||||
	/* skb content (packets) format :
 | 
			
		||||
	 *                    p0            p1            p2    ......    pm
 | 
			
		||||
	 *                 /      \
 | 
			
		||||
	 *            /                \
 | 
			
		||||
	 *        /                            \
 | 
			
		||||
	 *  /                                        \
 | 
			
		||||
	 * p0b0 p0b1 p0b2 p0b3 ...... p0b(n-4) p0b(n-3)...p0bn
 | 
			
		||||
	 *
 | 
			
		||||
	 * p0 : packet 0
 | 
			
		||||
	 * p0b0 : packet 0 byte 0
 | 
			
		||||
	 *
 | 
			
		||||
	 * b0: rx status
 | 
			
		||||
	 * b1: packet length (incl crc) low
 | 
			
		||||
	 * b2: packet length (incl crc) high
 | 
			
		||||
	 * b3..n-4: packet data
 | 
			
		||||
	 * bn-3..bn: ethernet packet crc
 | 
			
		||||
	 */
 | 
			
		||||
	if (unlikely(skb->len < SR_RX_OVERHEAD)) {
 | 
			
		||||
		netdev_err(dev->net, "unexpected tiny rx frame\n");
 | 
			
		||||
		return 0;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/* one skb may contains multiple packets */
 | 
			
		||||
	while (skb->len > SR_RX_OVERHEAD) {
 | 
			
		||||
		if (skb->data[0] != 0x40)
 | 
			
		||||
			return 0;
 | 
			
		||||
 | 
			
		||||
		/* ignore the CRC length */
 | 
			
		||||
		len = (skb->data[1] | (skb->data[2] << 8)) - 4;
 | 
			
		||||
 | 
			
		||||
		if (len > ETH_FRAME_LEN)
 | 
			
		||||
			return 0;
 | 
			
		||||
 | 
			
		||||
		/* the last packet of current skb */
 | 
			
		||||
		if (skb->len == (len + SR_RX_OVERHEAD))	{
 | 
			
		||||
			skb_pull(skb, 3);
 | 
			
		||||
			skb->len = len;
 | 
			
		||||
			skb_set_tail_pointer(skb, len);
 | 
			
		||||
			skb->truesize = len + sizeof(struct sk_buff);
 | 
			
		||||
			return 2;
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		/* skb_clone is used for address align */
 | 
			
		||||
		sr_skb = skb_clone(skb, GFP_ATOMIC);
 | 
			
		||||
		if (!sr_skb)
 | 
			
		||||
			return 0;
 | 
			
		||||
 | 
			
		||||
		sr_skb->len = len;
 | 
			
		||||
		sr_skb->data = skb->data + 3;
 | 
			
		||||
		skb_set_tail_pointer(sr_skb, len);
 | 
			
		||||
		sr_skb->truesize = len + sizeof(struct sk_buff);
 | 
			
		||||
		usbnet_skb_return(dev, sr_skb);
 | 
			
		||||
 | 
			
		||||
		skb_pull(skb, len + SR_RX_OVERHEAD);
 | 
			
		||||
	};
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static struct sk_buff *sr9700_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
 | 
			
		||||
				       gfp_t flags)
 | 
			
		||||
{
 | 
			
		||||
	int len;
 | 
			
		||||
 | 
			
		||||
	/* SR9700 can only send out one ethernet packet at once.
 | 
			
		||||
	 *
 | 
			
		||||
	 * b0 b1 b2 b3 ...... b(n-4) b(n-3)...bn
 | 
			
		||||
	 *
 | 
			
		||||
	 * b0: rx status
 | 
			
		||||
	 * b1: packet length (incl crc) low
 | 
			
		||||
	 * b2: packet length (incl crc) high
 | 
			
		||||
	 * b3..n-4: packet data
 | 
			
		||||
	 * bn-3..bn: ethernet packet crc
 | 
			
		||||
	 */
 | 
			
		||||
 | 
			
		||||
	len = skb->len;
 | 
			
		||||
 | 
			
		||||
	if (skb_headroom(skb) < SR_TX_OVERHEAD) {
 | 
			
		||||
		struct sk_buff *skb2;
 | 
			
		||||
 | 
			
		||||
		skb2 = skb_copy_expand(skb, SR_TX_OVERHEAD, 0, flags);
 | 
			
		||||
		dev_kfree_skb_any(skb);
 | 
			
		||||
		skb = skb2;
 | 
			
		||||
		if (!skb)
 | 
			
		||||
			return NULL;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	__skb_push(skb, SR_TX_OVERHEAD);
 | 
			
		||||
 | 
			
		||||
	/* usbnet adds padding if length is a multiple of packet size
 | 
			
		||||
	 * if so, adjust length value in header
 | 
			
		||||
	 */
 | 
			
		||||
	if ((skb->len % dev->maxpacket) == 0)
 | 
			
		||||
		len++;
 | 
			
		||||
 | 
			
		||||
	skb->data[0] = len;
 | 
			
		||||
	skb->data[1] = len >> 8;
 | 
			
		||||
 | 
			
		||||
	return skb;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void sr9700_status(struct usbnet *dev, struct urb *urb)
 | 
			
		||||
{
 | 
			
		||||
	int link;
 | 
			
		||||
	u8 *buf;
 | 
			
		||||
 | 
			
		||||
	/* format:
 | 
			
		||||
	   b0: net status
 | 
			
		||||
	   b1: tx status 1
 | 
			
		||||
	   b2: tx status 2
 | 
			
		||||
	   b3: rx status
 | 
			
		||||
	   b4: rx overflow
 | 
			
		||||
	   b5: rx count
 | 
			
		||||
	   b6: tx count
 | 
			
		||||
	   b7: gpr
 | 
			
		||||
	*/
 | 
			
		||||
 | 
			
		||||
	if (urb->actual_length < 8)
 | 
			
		||||
		return;
 | 
			
		||||
 | 
			
		||||
	buf = urb->transfer_buffer;
 | 
			
		||||
 | 
			
		||||
	link = !!(buf[0] & 0x40);
 | 
			
		||||
	if (netif_carrier_ok(dev->net) != link) {
 | 
			
		||||
		usbnet_link_change(dev, link, 1);
 | 
			
		||||
		netdev_dbg(dev->net, "Link Status is: %d\n", link);
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int sr9700_link_reset(struct usbnet *dev)
 | 
			
		||||
{
 | 
			
		||||
	struct ethtool_cmd ecmd;
 | 
			
		||||
 | 
			
		||||
	mii_check_media(&dev->mii, 1, 1);
 | 
			
		||||
	mii_ethtool_gset(&dev->mii, &ecmd);
 | 
			
		||||
 | 
			
		||||
	netdev_dbg(dev->net, "link_reset() speed: %d duplex: %d\n",
 | 
			
		||||
		   ecmd.speed, ecmd.duplex);
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static const struct driver_info sr9700_driver_info = {
 | 
			
		||||
	.description	= "CoreChip SR9700 USB Ethernet",
 | 
			
		||||
	.flags		= FLAG_ETHER,
 | 
			
		||||
	.bind		= sr9700_bind,
 | 
			
		||||
	.rx_fixup	= sr9700_rx_fixup,
 | 
			
		||||
	.tx_fixup	= sr9700_tx_fixup,
 | 
			
		||||
	.status		= sr9700_status,
 | 
			
		||||
	.link_reset	= sr9700_link_reset,
 | 
			
		||||
	.reset		= sr9700_link_reset,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static const struct usb_device_id products[] = {
 | 
			
		||||
	{
 | 
			
		||||
		USB_DEVICE(0x0fe6, 0x9700),	/* SR9700 device */
 | 
			
		||||
		.driver_info = (unsigned long)&sr9700_driver_info,
 | 
			
		||||
	},
 | 
			
		||||
	{},			/* END */
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
MODULE_DEVICE_TABLE(usb, products);
 | 
			
		||||
 | 
			
		||||
static struct usb_driver sr9700_usb_driver = {
 | 
			
		||||
	.name		= "sr9700",
 | 
			
		||||
	.id_table	= products,
 | 
			
		||||
	.probe		= usbnet_probe,
 | 
			
		||||
	.disconnect	= usbnet_disconnect,
 | 
			
		||||
	.suspend	= usbnet_suspend,
 | 
			
		||||
	.resume		= usbnet_resume,
 | 
			
		||||
	.disable_hub_initiated_lpm = 1,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
module_usb_driver(sr9700_usb_driver);
 | 
			
		||||
 | 
			
		||||
MODULE_AUTHOR("liujl <liujunliang_ljl@163.com>");
 | 
			
		||||
MODULE_DESCRIPTION("SR9700 one chip USB 1.1 USB to Ethernet device from http://www.corechip-sz.com/");
 | 
			
		||||
MODULE_LICENSE("GPL");
 | 
			
		||||
							
								
								
									
										173
									
								
								drivers/net/usb/sr9700.h
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										173
									
								
								drivers/net/usb/sr9700.h
									
									
									
									
									
										Normal file
									
								
							| 
						 | 
				
			
			@ -0,0 +1,173 @@
 | 
			
		|||
/*
 | 
			
		||||
 * CoreChip-sz SR9700 one chip USB 1.1 Ethernet Devices
 | 
			
		||||
 *
 | 
			
		||||
 * Author : Liu Junliang <liujunliang_ljl@163.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.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#ifndef _SR9700_H
 | 
			
		||||
#define	_SR9700_H
 | 
			
		||||
 | 
			
		||||
/* sr9700 spec. register table on Linux platform */
 | 
			
		||||
 | 
			
		||||
/* Network Control Reg */
 | 
			
		||||
#define	NCR			0x00
 | 
			
		||||
#define		NCR_RST			(1 << 0)
 | 
			
		||||
#define		NCR_LBK			(3 << 1)
 | 
			
		||||
#define		NCR_FDX			(1 << 3)
 | 
			
		||||
#define		NCR_WAKEEN		(1 << 6)
 | 
			
		||||
/* Network Status Reg */
 | 
			
		||||
#define	NSR			0x01
 | 
			
		||||
#define		NSR_RXRDY		(1 << 0)
 | 
			
		||||
#define		NSR_RXOV		(1 << 1)
 | 
			
		||||
#define		NSR_TX1END		(1 << 2)
 | 
			
		||||
#define		NSR_TX2END		(1 << 3)
 | 
			
		||||
#define		NSR_TXFULL		(1 << 4)
 | 
			
		||||
#define		NSR_WAKEST		(1 << 5)
 | 
			
		||||
#define		NSR_LINKST		(1 << 6)
 | 
			
		||||
#define		NSR_SPEED		(1 << 7)
 | 
			
		||||
/* Tx Control Reg */
 | 
			
		||||
#define	TCR			0x02
 | 
			
		||||
#define		TCR_CRC_DIS		(1 << 1)
 | 
			
		||||
#define		TCR_PAD_DIS		(1 << 2)
 | 
			
		||||
#define		TCR_LC_CARE		(1 << 3)
 | 
			
		||||
#define		TCR_CRS_CARE	(1 << 4)
 | 
			
		||||
#define		TCR_EXCECM		(1 << 5)
 | 
			
		||||
#define		TCR_LF_EN		(1 << 6)
 | 
			
		||||
/* Tx Status Reg for Packet Index 1 */
 | 
			
		||||
#define	TSR1		0x03
 | 
			
		||||
#define		TSR1_EC			(1 << 2)
 | 
			
		||||
#define		TSR1_COL		(1 << 3)
 | 
			
		||||
#define		TSR1_LC			(1 << 4)
 | 
			
		||||
#define		TSR1_NC			(1 << 5)
 | 
			
		||||
#define		TSR1_LOC		(1 << 6)
 | 
			
		||||
#define		TSR1_TLF		(1 << 7)
 | 
			
		||||
/* Tx Status Reg for Packet Index 2 */
 | 
			
		||||
#define	TSR2		0x04
 | 
			
		||||
#define		TSR2_EC			(1 << 2)
 | 
			
		||||
#define		TSR2_COL		(1 << 3)
 | 
			
		||||
#define		TSR2_LC			(1 << 4)
 | 
			
		||||
#define		TSR2_NC			(1 << 5)
 | 
			
		||||
#define		TSR2_LOC		(1 << 6)
 | 
			
		||||
#define		TSR2_TLF		(1 << 7)
 | 
			
		||||
/* Rx Control Reg*/
 | 
			
		||||
#define	RCR			0x05
 | 
			
		||||
#define		RCR_RXEN		(1 << 0)
 | 
			
		||||
#define		RCR_PRMSC		(1 << 1)
 | 
			
		||||
#define		RCR_RUNT		(1 << 2)
 | 
			
		||||
#define		RCR_ALL			(1 << 3)
 | 
			
		||||
#define		RCR_DIS_CRC		(1 << 4)
 | 
			
		||||
#define		RCR_DIS_LONG	(1 << 5)
 | 
			
		||||
/* Rx Status Reg */
 | 
			
		||||
#define	RSR			0x06
 | 
			
		||||
#define		RSR_AE			(1 << 2)
 | 
			
		||||
#define		RSR_MF			(1 << 6)
 | 
			
		||||
#define		RSR_RF			(1 << 7)
 | 
			
		||||
/* Rx Overflow Counter Reg */
 | 
			
		||||
#define	ROCR		0x07
 | 
			
		||||
#define		ROCR_ROC		(0x7F << 0)
 | 
			
		||||
#define		ROCR_RXFU		(1 << 7)
 | 
			
		||||
/* Back Pressure Threshold Reg */
 | 
			
		||||
#define	BPTR		0x08
 | 
			
		||||
#define		BPTR_JPT		(0x0F << 0)
 | 
			
		||||
#define		BPTR_BPHW		(0x0F << 4)
 | 
			
		||||
/* Flow Control Threshold Reg */
 | 
			
		||||
#define	FCTR		0x09
 | 
			
		||||
#define		FCTR_LWOT		(0x0F << 0)
 | 
			
		||||
#define		FCTR_HWOT		(0x0F << 4)
 | 
			
		||||
/* rx/tx Flow Control Reg */
 | 
			
		||||
#define	FCR			0x0A
 | 
			
		||||
#define		FCR_FLCE		(1 << 0)
 | 
			
		||||
#define		FCR_BKPA		(1 << 4)
 | 
			
		||||
#define		FCR_TXPEN		(1 << 5)
 | 
			
		||||
#define		FCR_TXPF		(1 << 6)
 | 
			
		||||
#define		FCR_TXP0		(1 << 7)
 | 
			
		||||
/* Eeprom & Phy Control Reg */
 | 
			
		||||
#define	EPCR		0x0B
 | 
			
		||||
#define		EPCR_ERRE		(1 << 0)
 | 
			
		||||
#define		EPCR_ERPRW		(1 << 1)
 | 
			
		||||
#define		EPCR_ERPRR		(1 << 2)
 | 
			
		||||
#define		EPCR_EPOS		(1 << 3)
 | 
			
		||||
#define		EPCR_WEP		(1 << 4)
 | 
			
		||||
/* Eeprom & Phy Address Reg */
 | 
			
		||||
#define	EPAR		0x0C
 | 
			
		||||
#define		EPAR_EROA		(0x3F << 0)
 | 
			
		||||
#define		EPAR_PHY_ADR_MASK	(0x03 << 6)
 | 
			
		||||
#define		EPAR_PHY_ADR		(0x01 << 6)
 | 
			
		||||
/* Eeprom &	Phy Data Reg */
 | 
			
		||||
#define	EPDR		0x0D	/* 0x0D ~ 0x0E for Data Reg Low & High */
 | 
			
		||||
/* Wakeup Control Reg */
 | 
			
		||||
#define	WCR			0x0F
 | 
			
		||||
#define		WCR_MAGICST		(1 << 0)
 | 
			
		||||
#define		WCR_LINKST		(1 << 2)
 | 
			
		||||
#define		WCR_MAGICEN		(1 << 3)
 | 
			
		||||
#define		WCR_LINKEN		(1 << 5)
 | 
			
		||||
/* Physical Address Reg */
 | 
			
		||||
#define	PAR			0x10	/* 0x10 ~ 0x15 6 bytes for PAR */
 | 
			
		||||
/* Multicast Address Reg */
 | 
			
		||||
#define	MAR			0x16	/* 0x16 ~ 0x1D 8 bytes for MAR */
 | 
			
		||||
/* 0x1e unused */
 | 
			
		||||
/* Phy Reset Reg */
 | 
			
		||||
#define	PRR			0x1F
 | 
			
		||||
#define		PRR_PHY_RST		(1 << 0)
 | 
			
		||||
/* Tx sdram Write Pointer Address Low */
 | 
			
		||||
#define	TWPAL		0x20
 | 
			
		||||
/* Tx sdram Write Pointer Address High */
 | 
			
		||||
#define	TWPAH		0x21
 | 
			
		||||
/* Tx sdram Read Pointer Address Low */
 | 
			
		||||
#define	TRPAL		0x22
 | 
			
		||||
/* Tx sdram Read Pointer Address High */
 | 
			
		||||
#define	TRPAH		0x23
 | 
			
		||||
/* Rx sdram Write Pointer Address Low */
 | 
			
		||||
#define	RWPAL		0x24
 | 
			
		||||
/* Rx sdram Write Pointer Address High */
 | 
			
		||||
#define	RWPAH		0x25
 | 
			
		||||
/* Rx sdram Read Pointer Address Low */
 | 
			
		||||
#define	RRPAL		0x26
 | 
			
		||||
/* Rx sdram Read Pointer Address High */
 | 
			
		||||
#define	RRPAH		0x27
 | 
			
		||||
/* Vendor ID register */
 | 
			
		||||
#define	VID			0x28	/* 0x28 ~ 0x29 2 bytes for VID */
 | 
			
		||||
/* Product ID register */
 | 
			
		||||
#define	PID			0x2A	/* 0x2A ~ 0x2B 2 bytes for PID */
 | 
			
		||||
/* CHIP Revision register */
 | 
			
		||||
#define	CHIPR		0x2C
 | 
			
		||||
/* 0x2D --> 0xEF unused */
 | 
			
		||||
/* USB Device Address */
 | 
			
		||||
#define	USBDA		0xF0
 | 
			
		||||
#define		USBDA_USBFA		(0x7F << 0)
 | 
			
		||||
/* RX packet Counter Reg */
 | 
			
		||||
#define	RXC			0xF1
 | 
			
		||||
/* Tx packet Counter & USB Status Reg */
 | 
			
		||||
#define	TXC_USBS	0xF2
 | 
			
		||||
#define		TXC_USBS_TXC0		(1 << 0)
 | 
			
		||||
#define		TXC_USBS_TXC1		(1 << 1)
 | 
			
		||||
#define		TXC_USBS_TXC2		(1 << 2)
 | 
			
		||||
#define		TXC_USBS_EP1RDY		(1 << 5)
 | 
			
		||||
#define		TXC_USBS_SUSFLAG	(1 << 6)
 | 
			
		||||
#define		TXC_USBS_RXFAULT	(1 << 7)
 | 
			
		||||
/* USB Control register */
 | 
			
		||||
#define	USBC		0xF4
 | 
			
		||||
#define		USBC_EP3NAK		(1 << 4)
 | 
			
		||||
#define		USBC_EP3ACK		(1 << 5)
 | 
			
		||||
 | 
			
		||||
/* Register access commands and flags */
 | 
			
		||||
#define	SR_RD_REGS		0x00
 | 
			
		||||
#define	SR_WR_REGS		0x01
 | 
			
		||||
#define	SR_WR_REG		0x03
 | 
			
		||||
#define	SR_REQ_RD_REG	(USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE)
 | 
			
		||||
#define	SR_REQ_WR_REG	(USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE)
 | 
			
		||||
 | 
			
		||||
/* parameters */
 | 
			
		||||
#define	SR_SHARE_TIMEOUT	1000
 | 
			
		||||
#define	SR_EEPROM_LEN		256
 | 
			
		||||
#define	SR_MCAST_SIZE		8
 | 
			
		||||
#define	SR_MCAST_ADDR_FLAG	0x80
 | 
			
		||||
#define	SR_MCAST_MAX		64
 | 
			
		||||
#define	SR_TX_OVERHEAD		2	/* 2bytes header */
 | 
			
		||||
#define	SR_RX_OVERHEAD		7	/* 3bytes header + 4crc tail */
 | 
			
		||||
 | 
			
		||||
#endif	/* _SR9700_H */
 | 
			
		||||
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		Reference in a new issue