Commit d0cad871 authored by Steve Glendinning's avatar Steve Glendinning Committed by David S. Miller

smsc75xx: SMSC LAN75xx USB gigabit ethernet adapter driver

This patch adds a driver for SMSC's LAN7500 family of USB 2.0
to gigabit ethernet adapters.  It's loosely based on the smsc95xx
driver but the device registers for LAN7500 are completely different.
Signed-off-by: default avatarSteve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c5e49fb5
...@@ -204,6 +204,14 @@ config USB_NET_DM9601 ...@@ -204,6 +204,14 @@ config USB_NET_DM9601
This option adds support for Davicom DM9601 based USB 1.1 This option adds support for Davicom DM9601 based USB 1.1
10/100 Ethernet adapters. 10/100 Ethernet adapters.
config USB_NET_SMSC75XX
tristate "SMSC LAN75XX based USB 2.0 gigabit ethernet devices"
depends on USB_USBNET
select CRC32
help
This option adds support for SMSC LAN95XX based USB 2.0
Gigabit Ethernet adapters.
config USB_NET_SMSC95XX config USB_NET_SMSC95XX
tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices" tristate "SMSC LAN95XX based USB 2.0 10/100 ethernet devices"
depends on USB_USBNET depends on USB_USBNET
......
...@@ -11,6 +11,7 @@ obj-$(CONFIG_USB_NET_AX8817X) += asix.o ...@@ -11,6 +11,7 @@ obj-$(CONFIG_USB_NET_AX8817X) += asix.o
obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o obj-$(CONFIG_USB_NET_CDCETHER) += cdc_ether.o
obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o obj-$(CONFIG_USB_NET_CDC_EEM) += cdc_eem.o
obj-$(CONFIG_USB_NET_DM9601) += dm9601.o obj-$(CONFIG_USB_NET_DM9601) += dm9601.o
obj-$(CONFIG_USB_NET_SMSC75XX) += smsc75xx.o
obj-$(CONFIG_USB_NET_SMSC95XX) += smsc95xx.o obj-$(CONFIG_USB_NET_SMSC95XX) += smsc95xx.o
obj-$(CONFIG_USB_NET_GL620A) += gl620a.o obj-$(CONFIG_USB_NET_GL620A) += gl620a.o
obj-$(CONFIG_USB_NET_NET1080) += net1080.o obj-$(CONFIG_USB_NET_NET1080) += net1080.o
......
/***************************************************************************
*
* Copyright (C) 2007-2010 SMSC
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*****************************************************************************/
#include <linux/module.h>
#include <linux/kmod.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/usb.h>
#include <linux/crc32.h>
#include <linux/usb/usbnet.h>
#include "smsc75xx.h"
#define SMSC_CHIPNAME "smsc75xx"
#define SMSC_DRIVER_VERSION "1.0.0"
#define HS_USB_PKT_SIZE (512)
#define FS_USB_PKT_SIZE (64)
#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
#define DEFAULT_FS_BURST_CAP_SIZE (6 * 1024 + 33 * FS_USB_PKT_SIZE)
#define DEFAULT_BULK_IN_DELAY (0x00002000)
#define MAX_SINGLE_PACKET_SIZE (9000)
#define LAN75XX_EEPROM_MAGIC (0x7500)
#define EEPROM_MAC_OFFSET (0x01)
#define DEFAULT_TX_CSUM_ENABLE (true)
#define DEFAULT_RX_CSUM_ENABLE (true)
#define DEFAULT_TSO_ENABLE (true)
#define SMSC75XX_INTERNAL_PHY_ID (1)
#define SMSC75XX_TX_OVERHEAD (8)
#define MAX_RX_FIFO_SIZE (20 * 1024)
#define MAX_TX_FIFO_SIZE (12 * 1024)
#define USB_VENDOR_ID_SMSC (0x0424)
#define USB_PRODUCT_ID_LAN7500 (0x7500)
#define USB_PRODUCT_ID_LAN7505 (0x7505)
#define check_warn(ret, fmt, args...) \
({ if (ret < 0) netdev_warn(dev->net, fmt, ##args); })
#define check_warn_return(ret, fmt, args...) \
({ if (ret < 0) { netdev_warn(dev->net, fmt, ##args); return ret; } })
#define check_warn_goto_done(ret, fmt, args...) \
({ if (ret < 0) { netdev_warn(dev->net, fmt, ##args); goto done; } })
struct smsc75xx_priv {
struct usbnet *dev;
u32 rfe_ctl;
u32 multicast_hash_table[DP_SEL_VHF_HASH_LEN];
bool use_rx_csum;
struct mutex dataport_mutex;
spinlock_t rfe_ctl_lock;
struct work_struct set_multicast;
};
struct usb_context {
struct usb_ctrlrequest req;
struct usbnet *dev;
};
static int turbo_mode = true;
module_param(turbo_mode, bool, 0644);
MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
static int __must_check smsc75xx_read_reg(struct usbnet *dev, u32 index,
u32 *data)
{
u32 *buf = kmalloc(4, GFP_KERNEL);
int ret;
BUG_ON(!dev);
if (!buf)
return -ENOMEM;
ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
USB_VENDOR_REQUEST_READ_REGISTER,
USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
00, index, buf, 4, USB_CTRL_GET_TIMEOUT);
if (unlikely(ret < 0))
netdev_warn(dev->net,
"Failed to read register index 0x%08x", index);
le32_to_cpus(buf);
*data = *buf;
kfree(buf);
return ret;
}
static int __must_check smsc75xx_write_reg(struct usbnet *dev, u32 index,
u32 data)
{
u32 *buf = kmalloc(4, GFP_KERNEL);
int ret;
BUG_ON(!dev);
if (!buf)
return -ENOMEM;
*buf = data;
cpu_to_le32s(buf);
ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
USB_VENDOR_REQUEST_WRITE_REGISTER,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
00, index, buf, 4, USB_CTRL_SET_TIMEOUT);
if (unlikely(ret < 0))
netdev_warn(dev->net,
"Failed to write register index 0x%08x", index);
kfree(buf);
return ret;
}
/* Loop until the read is completed with timeout
* called with phy_mutex held */
static int smsc75xx_phy_wait_not_busy(struct usbnet *dev)
{
unsigned long start_time = jiffies;
u32 val;
int ret;
do {
ret = smsc75xx_read_reg(dev, MII_ACCESS, &val);
check_warn_return(ret, "Error reading MII_ACCESS");
if (!(val & MII_ACCESS_BUSY))
return 0;
} while (!time_after(jiffies, start_time + HZ));
return -EIO;
}
static int smsc75xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
{
struct usbnet *dev = netdev_priv(netdev);
u32 val, addr;
int ret;
mutex_lock(&dev->phy_mutex);
/* confirm MII not busy */
ret = smsc75xx_phy_wait_not_busy(dev);
check_warn_goto_done(ret, "MII is busy in smsc75xx_mdio_read");
/* set the address, index & direction (read from PHY) */
phy_id &= dev->mii.phy_id_mask;
idx &= dev->mii.reg_num_mask;
addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR)
| ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR)
| MII_ACCESS_READ;
ret = smsc75xx_write_reg(dev, MII_ACCESS, addr);
check_warn_goto_done(ret, "Error writing MII_ACCESS");
ret = smsc75xx_phy_wait_not_busy(dev);
check_warn_goto_done(ret, "Timed out reading MII reg %02X", idx);
ret = smsc75xx_read_reg(dev, MII_DATA, &val);
check_warn_goto_done(ret, "Error reading MII_DATA");
ret = (u16)(val & 0xFFFF);
done:
mutex_unlock(&dev->phy_mutex);
return ret;
}
static void smsc75xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
int regval)
{
struct usbnet *dev = netdev_priv(netdev);
u32 val, addr;
int ret;
mutex_lock(&dev->phy_mutex);
/* confirm MII not busy */
ret = smsc75xx_phy_wait_not_busy(dev);
check_warn_goto_done(ret, "MII is busy in smsc75xx_mdio_write");
val = regval;
ret = smsc75xx_write_reg(dev, MII_DATA, val);
check_warn_goto_done(ret, "Error writing MII_DATA");
/* set the address, index & direction (write to PHY) */
phy_id &= dev->mii.phy_id_mask;
idx &= dev->mii.reg_num_mask;
addr = ((phy_id << MII_ACCESS_PHY_ADDR_SHIFT) & MII_ACCESS_PHY_ADDR)
| ((idx << MII_ACCESS_REG_ADDR_SHIFT) & MII_ACCESS_REG_ADDR)
| MII_ACCESS_WRITE;
ret = smsc75xx_write_reg(dev, MII_ACCESS, addr);
check_warn_goto_done(ret, "Error writing MII_ACCESS");
ret = smsc75xx_phy_wait_not_busy(dev);
check_warn_goto_done(ret, "Timed out writing MII reg %02X", idx);
done:
mutex_unlock(&dev->phy_mutex);
}
static int smsc75xx_wait_eeprom(struct usbnet *dev)
{
unsigned long start_time = jiffies;
u32 val;
int ret;
do {
ret = smsc75xx_read_reg(dev, E2P_CMD, &val);
check_warn_return(ret, "Error reading E2P_CMD");
if (!(val & E2P_CMD_BUSY) || (val & E2P_CMD_TIMEOUT))
break;
udelay(40);
} while (!time_after(jiffies, start_time + HZ));
if (val & (E2P_CMD_TIMEOUT | E2P_CMD_BUSY)) {
netdev_warn(dev->net, "EEPROM read operation timeout");
return -EIO;
}
return 0;
}
static int smsc75xx_eeprom_confirm_not_busy(struct usbnet *dev)
{
unsigned long start_time = jiffies;
u32 val;
int ret;
do {
ret = smsc75xx_read_reg(dev, E2P_CMD, &val);
check_warn_return(ret, "Error reading E2P_CMD");
if (!(val & E2P_CMD_BUSY))
return 0;
udelay(40);
} while (!time_after(jiffies, start_time + HZ));
netdev_warn(dev->net, "EEPROM is busy");
return -EIO;
}
static int smsc75xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
u8 *data)
{
u32 val;
int i, ret;
BUG_ON(!dev);
BUG_ON(!data);
ret = smsc75xx_eeprom_confirm_not_busy(dev);
if (ret)
return ret;
for (i = 0; i < length; i++) {
val = E2P_CMD_BUSY | E2P_CMD_READ | (offset & E2P_CMD_ADDR);
ret = smsc75xx_write_reg(dev, E2P_CMD, val);
check_warn_return(ret, "Error writing E2P_CMD");
ret = smsc75xx_wait_eeprom(dev);
if (ret < 0)
return ret;
ret = smsc75xx_read_reg(dev, E2P_DATA, &val);
check_warn_return(ret, "Error reading E2P_DATA");
data[i] = val & 0xFF;
offset++;
}
return 0;
}
static int smsc75xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
u8 *data)
{
u32 val;
int i, ret;
BUG_ON(!dev);
BUG_ON(!data);
ret = smsc75xx_eeprom_confirm_not_busy(dev);
if (ret)
return ret;
/* Issue write/erase enable command */
val = E2P_CMD_BUSY | E2P_CMD_EWEN;
ret = smsc75xx_write_reg(dev, E2P_CMD, val);
check_warn_return(ret, "Error writing E2P_CMD");
ret = smsc75xx_wait_eeprom(dev);
if (ret < 0)
return ret;
for (i = 0; i < length; i++) {
/* Fill data register */
val = data[i];
ret = smsc75xx_write_reg(dev, E2P_DATA, val);
check_warn_return(ret, "Error writing E2P_DATA");
/* Send "write" command */
val = E2P_CMD_BUSY | E2P_CMD_WRITE | (offset & E2P_CMD_ADDR);
ret = smsc75xx_write_reg(dev, E2P_CMD, val);
check_warn_return(ret, "Error writing E2P_CMD");
ret = smsc75xx_wait_eeprom(dev);
if (ret < 0)
return ret;
offset++;
}
return 0;
}
static int smsc75xx_dataport_wait_not_busy(struct usbnet *dev)
{
int i, ret;
for (i = 0; i < 100; i++) {
u32 dp_sel;
ret = smsc75xx_read_reg(dev, DP_SEL, &dp_sel);
check_warn_return(ret, "Error reading DP_SEL");
if (dp_sel & DP_SEL_DPRDY)
return 0;
udelay(40);
}
netdev_warn(dev->net, "smsc75xx_dataport_wait_not_busy timed out");
return -EIO;
}
static int smsc75xx_dataport_write(struct usbnet *dev, u32 ram_select, u32 addr,
u32 length, u32 *buf)
{
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
u32 dp_sel;
int i, ret;
mutex_lock(&pdata->dataport_mutex);
ret = smsc75xx_dataport_wait_not_busy(dev);
check_warn_goto_done(ret, "smsc75xx_dataport_write busy on entry");
ret = smsc75xx_read_reg(dev, DP_SEL, &dp_sel);
check_warn_goto_done(ret, "Error reading DP_SEL");
dp_sel &= ~DP_SEL_RSEL;
dp_sel |= ram_select;
ret = smsc75xx_write_reg(dev, DP_SEL, dp_sel);
check_warn_goto_done(ret, "Error writing DP_SEL");
for (i = 0; i < length; i++) {
ret = smsc75xx_write_reg(dev, DP_ADDR, addr + i);
check_warn_goto_done(ret, "Error writing DP_ADDR");
ret = smsc75xx_write_reg(dev, DP_DATA, buf[i]);
check_warn_goto_done(ret, "Error writing DP_DATA");
ret = smsc75xx_write_reg(dev, DP_CMD, DP_CMD_WRITE);
check_warn_goto_done(ret, "Error writing DP_CMD");
ret = smsc75xx_dataport_wait_not_busy(dev);
check_warn_goto_done(ret, "smsc75xx_dataport_write timeout");
}
done:
mutex_unlock(&pdata->dataport_mutex);
return ret;
}
/* returns hash bit number for given MAC address */
static u32 smsc75xx_hash(char addr[ETH_ALEN])
{
return (ether_crc(ETH_ALEN, addr) >> 23) & 0x1ff;
}
static void smsc75xx_deferred_multicast_write(struct work_struct *param)
{
struct smsc75xx_priv *pdata =
container_of(param, struct smsc75xx_priv, set_multicast);
struct usbnet *dev = pdata->dev;
int ret;
netif_dbg(dev, drv, dev->net, "deferred multicast write 0x%08x",
pdata->rfe_ctl);
smsc75xx_dataport_write(dev, DP_SEL_VHF, DP_SEL_VHF_VLAN_LEN,
DP_SEL_VHF_HASH_LEN, pdata->multicast_hash_table);
ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
check_warn(ret, "Error writing RFE_CRL");
}
static void smsc75xx_set_multicast(struct net_device *netdev)
{
struct usbnet *dev = netdev_priv(netdev);
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
unsigned long flags;
int i;
spin_lock_irqsave(&pdata->rfe_ctl_lock, flags);
pdata->rfe_ctl &=
~(RFE_CTL_AU | RFE_CTL_AM | RFE_CTL_DPF | RFE_CTL_MHF);
pdata->rfe_ctl |= RFE_CTL_AB;
for (i = 0; i < DP_SEL_VHF_HASH_LEN; i++)
pdata->multicast_hash_table[i] = 0;
if (dev->net->flags & IFF_PROMISC) {
netif_dbg(dev, drv, dev->net, "promiscuous mode enabled");
pdata->rfe_ctl |= RFE_CTL_AM | RFE_CTL_AU;
} else if (dev->net->flags & IFF_ALLMULTI) {
netif_dbg(dev, drv, dev->net, "receive all multicast enabled");
pdata->rfe_ctl |= RFE_CTL_AM | RFE_CTL_DPF;
} else if (!netdev_mc_empty(dev->net)) {
struct dev_mc_list *mc_list;
netif_dbg(dev, drv, dev->net, "receive multicast hash filter");
pdata->rfe_ctl |= RFE_CTL_MHF | RFE_CTL_DPF;
netdev_for_each_mc_addr(mc_list, netdev) {
u32 bitnum = smsc75xx_hash(mc_list->dmi_addr);
pdata->multicast_hash_table[bitnum / 32] |=
(1 << (bitnum % 32));
}
} else {
netif_dbg(dev, drv, dev->net, "receive own packets only");
pdata->rfe_ctl |= RFE_CTL_DPF;
}
spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags);
/* defer register writes to a sleepable context */
schedule_work(&pdata->set_multicast);
}
static int smsc75xx_update_flowcontrol(struct usbnet *dev, u8 duplex,
u16 lcladv, u16 rmtadv)
{
u32 flow = 0, fct_flow = 0;
int ret;
if (duplex == DUPLEX_FULL) {
u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
if (cap & FLOW_CTRL_TX) {
flow = (FLOW_TX_FCEN | 0xFFFF);
/* set fct_flow thresholds to 20% and 80% */
fct_flow = (8 << 8) | 32;
}
if (cap & FLOW_CTRL_RX)
flow |= FLOW_RX_FCEN;
netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s",
(cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
(cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
} else {
netif_dbg(dev, link, dev->net, "half duplex");
}
ret = smsc75xx_write_reg(dev, FLOW, flow);
check_warn_return(ret, "Error writing FLOW");
ret = smsc75xx_write_reg(dev, FCT_FLOW, fct_flow);
check_warn_return(ret, "Error writing FCT_FLOW");
return 0;
}
static int smsc75xx_link_reset(struct usbnet *dev)
{
struct mii_if_info *mii = &dev->mii;
struct ethtool_cmd ecmd;
u16 lcladv, rmtadv;
int ret;
/* clear interrupt status */
ret = smsc75xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
check_warn_return(ret, "Error reading PHY_INT_SRC");
ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL);
check_warn_return(ret, "Error writing INT_STS");
mii_check_media(mii, 1, 1);
mii_ethtool_gset(&dev->mii, &ecmd);
lcladv = smsc75xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
rmtadv = smsc75xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
netif_dbg(dev, link, dev->net, "speed: %d duplex: %d lcladv: %04x"
" rmtadv: %04x", ecmd.speed, ecmd.duplex, lcladv, rmtadv);
return smsc75xx_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
}
static void smsc75xx_status(struct usbnet *dev, struct urb *urb)
{
u32 intdata;
if (urb->actual_length != 4) {
netdev_warn(dev->net,
"unexpected urb length %d", urb->actual_length);
return;
}
memcpy(&intdata, urb->transfer_buffer, 4);
le32_to_cpus(&intdata);
netif_dbg(dev, link, dev->net, "intdata: 0x%08X", intdata);
if (intdata & INT_ENP_PHY_INT)
usbnet_defer_kevent(dev, EVENT_LINK_RESET);
else
netdev_warn(dev->net,
"unexpected interrupt, intdata=0x%08X", intdata);
}
/* Enable or disable Rx checksum offload engine */
static int smsc75xx_set_rx_csum_offload(struct usbnet *dev)
{
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
unsigned long flags;
int ret;
spin_lock_irqsave(&pdata->rfe_ctl_lock, flags);
if (pdata->use_rx_csum)
pdata->rfe_ctl |= RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM;
else
pdata->rfe_ctl &= ~(RFE_CTL_TCPUDP_CKM | RFE_CTL_IP_CKM);
spin_unlock_irqrestore(&pdata->rfe_ctl_lock, flags);
ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
check_warn_return(ret, "Error writing RFE_CTL");
return 0;
}
static int smsc75xx_ethtool_get_eeprom_len(struct net_device *net)
{
return MAX_EEPROM_SIZE;
}
static int smsc75xx_ethtool_get_eeprom(struct net_device *netdev,
struct ethtool_eeprom *ee, u8 *data)
{
struct usbnet *dev = netdev_priv(netdev);
ee->magic = LAN75XX_EEPROM_MAGIC;
return smsc75xx_read_eeprom(dev, ee->offset, ee->len, data);
}
static int smsc75xx_ethtool_set_eeprom(struct net_device *netdev,
struct ethtool_eeprom *ee, u8 *data)
{
struct usbnet *dev = netdev_priv(netdev);
if (ee->magic != LAN75XX_EEPROM_MAGIC) {
netdev_warn(dev->net,
"EEPROM: magic value mismatch: 0x%x", ee->magic);
return -EINVAL;
}
return smsc75xx_write_eeprom(dev, ee->offset, ee->len, data);
}
static u32 smsc75xx_ethtool_get_rx_csum(struct net_device *netdev)
{
struct usbnet *dev = netdev_priv(netdev);
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
return pdata->use_rx_csum;
}
static int smsc75xx_ethtool_set_rx_csum(struct net_device *netdev, u32 val)
{
struct usbnet *dev = netdev_priv(netdev);
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
pdata->use_rx_csum = !!val;
return smsc75xx_set_rx_csum_offload(dev);
}
static int smsc75xx_ethtool_set_tso(struct net_device *netdev, u32 data)
{
if (data)
netdev->features |= NETIF_F_TSO | NETIF_F_TSO6;
else
netdev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
return 0;
}
static const struct ethtool_ops smsc75xx_ethtool_ops = {
.get_link = usbnet_get_link,
.nway_reset = usbnet_nway_reset,
.get_drvinfo = usbnet_get_drvinfo,
.get_msglevel = usbnet_get_msglevel,
.set_msglevel = usbnet_set_msglevel,
.get_settings = usbnet_get_settings,
.set_settings = usbnet_set_settings,
.get_eeprom_len = smsc75xx_ethtool_get_eeprom_len,
.get_eeprom = smsc75xx_ethtool_get_eeprom,
.set_eeprom = smsc75xx_ethtool_set_eeprom,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_hw_csum,
.get_rx_csum = smsc75xx_ethtool_get_rx_csum,
.set_rx_csum = smsc75xx_ethtool_set_rx_csum,
.get_tso = ethtool_op_get_tso,
.set_tso = smsc75xx_ethtool_set_tso,
};
static int smsc75xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
{
struct usbnet *dev = netdev_priv(netdev);
if (!netif_running(netdev))
return -EINVAL;
return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
}
static void smsc75xx_init_mac_address(struct usbnet *dev)
{
/* try reading mac address from EEPROM */
if (smsc75xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
dev->net->dev_addr) == 0) {
if (is_valid_ether_addr(dev->net->dev_addr)) {
/* eeprom values are valid so use them */
netif_dbg(dev, ifup, dev->net,
"MAC address read from EEPROM");
return;
}
}
/* no eeprom, or eeprom values are invalid. generate random MAC */
random_ether_addr(dev->net->dev_addr);
netif_dbg(dev, ifup, dev->net, "MAC address set to random_ether_addr");
}
static int smsc75xx_set_mac_address(struct usbnet *dev)
{
u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 |
dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24;
u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8;
int ret = smsc75xx_write_reg(dev, RX_ADDRH, addr_hi);
check_warn_return(ret, "Failed to write RX_ADDRH: %d", ret);
ret = smsc75xx_write_reg(dev, RX_ADDRL, addr_lo);
check_warn_return(ret, "Failed to write RX_ADDRL: %d", ret);
addr_hi |= ADDR_FILTX_FB_VALID;
ret = smsc75xx_write_reg(dev, ADDR_FILTX, addr_hi);
check_warn_return(ret, "Failed to write ADDR_FILTX: %d", ret);
ret = smsc75xx_write_reg(dev, ADDR_FILTX + 4, addr_lo);
check_warn_return(ret, "Failed to write ADDR_FILTX+4: %d", ret);
return 0;
}
static int smsc75xx_phy_initialize(struct usbnet *dev)
{
int bmcr, timeout = 0;
/* Initialize MII structure */
dev->mii.dev = dev->net;
dev->mii.mdio_read = smsc75xx_mdio_read;
dev->mii.mdio_write = smsc75xx_mdio_write;
dev->mii.phy_id_mask = 0x1f;
dev->mii.reg_num_mask = 0x1f;
dev->mii.phy_id = SMSC75XX_INTERNAL_PHY_ID;
/* reset phy and wait for reset to complete */
smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
do {
msleep(10);
bmcr = smsc75xx_mdio_read(dev->net, dev->mii.phy_id, MII_BMCR);
check_warn_return(bmcr, "Error reading MII_BMCR");
timeout++;
} while ((bmcr & MII_BMCR) && (timeout < 100));
if (timeout >= 100) {
netdev_warn(dev->net, "timeout on PHY Reset");
return -EIO;
}
smsc75xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP |
ADVERTISE_PAUSE_ASYM);
/* read to clear */
smsc75xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
check_warn_return(bmcr, "Error reading PHY_INT_SRC");
smsc75xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK,
PHY_INT_MASK_DEFAULT);
mii_nway_restart(&dev->mii);
netif_dbg(dev, ifup, dev->net, "phy initialised successfully");
return 0;
}
static int smsc75xx_set_rx_max_frame_length(struct usbnet *dev, int size)
{
int ret = 0;
u32 buf;
bool rxenabled;
ret = smsc75xx_read_reg(dev, MAC_RX, &buf);
check_warn_return(ret, "Failed to read MAC_RX: %d", ret);
rxenabled = ((buf & MAC_RX_RXEN) != 0);
if (rxenabled) {
buf &= ~MAC_RX_RXEN;
ret = smsc75xx_write_reg(dev, MAC_RX, buf);
check_warn_return(ret, "Failed to write MAC_RX: %d", ret);
}
/* add 4 to size for FCS */
buf &= ~MAC_RX_MAX_SIZE;
buf |= (((size + 4) << MAC_RX_MAX_SIZE_SHIFT) & MAC_RX_MAX_SIZE);
ret = smsc75xx_write_reg(dev, MAC_RX, buf);
check_warn_return(ret, "Failed to write MAC_RX: %d", ret);
if (rxenabled) {
buf |= MAC_RX_RXEN;
ret = smsc75xx_write_reg(dev, MAC_RX, buf);
check_warn_return(ret, "Failed to write MAC_RX: %d", ret);
}
return 0;
}
static int smsc75xx_change_mtu(struct net_device *netdev, int new_mtu)
{
struct usbnet *dev = netdev_priv(netdev);
int ret = smsc75xx_set_rx_max_frame_length(dev, new_mtu);
check_warn_return(ret, "Failed to set mac rx frame length");
return usbnet_change_mtu(netdev, new_mtu);
}
static int smsc75xx_reset(struct usbnet *dev)
{
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
u32 buf;
int ret = 0, timeout;
netif_dbg(dev, ifup, dev->net, "entering smsc75xx_reset");
ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
check_warn_return(ret, "Failed to read HW_CFG: %d", ret);
buf |= HW_CFG_LRST;
ret = smsc75xx_write_reg(dev, HW_CFG, buf);
check_warn_return(ret, "Failed to write HW_CFG: %d", ret);
timeout = 0;
do {
msleep(10);
ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
check_warn_return(ret, "Failed to read HW_CFG: %d", ret);
timeout++;
} while ((buf & HW_CFG_LRST) && (timeout < 100));
if (timeout >= 100) {
netdev_warn(dev->net, "timeout on completion of Lite Reset");
return -EIO;
}
netif_dbg(dev, ifup, dev->net, "Lite reset complete, resetting PHY");
ret = smsc75xx_read_reg(dev, PMT_CTL, &buf);
check_warn_return(ret, "Failed to read PMT_CTL: %d", ret);
buf |= PMT_CTL_PHY_RST;
ret = smsc75xx_write_reg(dev, PMT_CTL, buf);
check_warn_return(ret, "Failed to write PMT_CTL: %d", ret);
timeout = 0;
do {
msleep(10);
ret = smsc75xx_read_reg(dev, PMT_CTL, &buf);
check_warn_return(ret, "Failed to read PMT_CTL: %d", ret);
timeout++;
} while ((buf & PMT_CTL_PHY_RST) && (timeout < 100));
if (timeout >= 100) {
netdev_warn(dev->net, "timeout waiting for PHY Reset");
return -EIO;
}
netif_dbg(dev, ifup, dev->net, "PHY reset complete");
smsc75xx_init_mac_address(dev);
ret = smsc75xx_set_mac_address(dev);
check_warn_return(ret, "Failed to set mac address");
netif_dbg(dev, ifup, dev->net, "MAC Address: %pM", dev->net->dev_addr);
ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
check_warn_return(ret, "Failed to read HW_CFG: %d", ret);
netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG : 0x%08x", buf);
buf |= HW_CFG_BIR;
ret = smsc75xx_write_reg(dev, HW_CFG, buf);
check_warn_return(ret, "Failed to write HW_CFG: %d", ret);
ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
check_warn_return(ret, "Failed to read HW_CFG: %d", ret);
netif_dbg(dev, ifup, dev->net, "Read Value from HW_CFG after "
"writing HW_CFG_BIR: 0x%08x", buf);
if (!turbo_mode) {
buf = 0;
dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
} else if (dev->udev->speed == USB_SPEED_HIGH) {
buf = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
} else {
buf = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
}
netif_dbg(dev, ifup, dev->net, "rx_urb_size=%ld",
(ulong)dev->rx_urb_size);
ret = smsc75xx_write_reg(dev, BURST_CAP, buf);
check_warn_return(ret, "Failed to write BURST_CAP: %d", ret);
ret = smsc75xx_read_reg(dev, BURST_CAP, &buf);
check_warn_return(ret, "Failed to read BURST_CAP: %d", ret);
netif_dbg(dev, ifup, dev->net,
"Read Value from BURST_CAP after writing: 0x%08x", buf);
ret = smsc75xx_write_reg(dev, BULK_IN_DLY, DEFAULT_BULK_IN_DELAY);
check_warn_return(ret, "Failed to write BULK_IN_DLY: %d", ret);
ret = smsc75xx_read_reg(dev, BULK_IN_DLY, &buf);
check_warn_return(ret, "Failed to read BULK_IN_DLY: %d", ret);
netif_dbg(dev, ifup, dev->net,
"Read Value from BULK_IN_DLY after writing: 0x%08x", buf);
if (turbo_mode) {
ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
check_warn_return(ret, "Failed to read HW_CFG: %d", ret);
netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x", buf);
buf |= (HW_CFG_MEF | HW_CFG_BCE);
ret = smsc75xx_write_reg(dev, HW_CFG, buf);
check_warn_return(ret, "Failed to write HW_CFG: %d", ret);
ret = smsc75xx_read_reg(dev, HW_CFG, &buf);
check_warn_return(ret, "Failed to read HW_CFG: %d", ret);
netif_dbg(dev, ifup, dev->net, "HW_CFG: 0x%08x", buf);
}
/* set FIFO sizes */
buf = (MAX_RX_FIFO_SIZE - 512) / 512;
ret = smsc75xx_write_reg(dev, FCT_RX_FIFO_END, buf);
check_warn_return(ret, "Failed to write FCT_RX_FIFO_END: %d", ret);
netif_dbg(dev, ifup, dev->net, "FCT_RX_FIFO_END set to 0x%08x", buf);
buf = (MAX_TX_FIFO_SIZE - 512) / 512;
ret = smsc75xx_write_reg(dev, FCT_TX_FIFO_END, buf);
check_warn_return(ret, "Failed to write FCT_TX_FIFO_END: %d", ret);
netif_dbg(dev, ifup, dev->net, "FCT_TX_FIFO_END set to 0x%08x", buf);
ret = smsc75xx_write_reg(dev, INT_STS, INT_STS_CLEAR_ALL);
check_warn_return(ret, "Failed to write INT_STS: %d", ret);
ret = smsc75xx_read_reg(dev, ID_REV, &buf);
check_warn_return(ret, "Failed to read ID_REV: %d", ret);
netif_dbg(dev, ifup, dev->net, "ID_REV = 0x%08x", buf);
/* Configure GPIO pins as LED outputs */
ret = smsc75xx_read_reg(dev, LED_GPIO_CFG, &buf);
check_warn_return(ret, "Failed to read LED_GPIO_CFG: %d", ret);
buf &= ~(LED_GPIO_CFG_LED2_FUN_SEL | LED_GPIO_CFG_LED10_FUN_SEL);
buf |= LED_GPIO_CFG_LEDGPIO_EN | LED_GPIO_CFG_LED2_FUN_SEL;
ret = smsc75xx_write_reg(dev, LED_GPIO_CFG, buf);
check_warn_return(ret, "Failed to write LED_GPIO_CFG: %d", ret);
ret = smsc75xx_write_reg(dev, FLOW, 0);
check_warn_return(ret, "Failed to write FLOW: %d", ret);
ret = smsc75xx_write_reg(dev, FCT_FLOW, 0);
check_warn_return(ret, "Failed to write FCT_FLOW: %d", ret);
/* Don't need rfe_ctl_lock during initialisation */
ret = smsc75xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl);
check_warn_return(ret, "Failed to read RFE_CTL: %d", ret);
pdata->rfe_ctl |= RFE_CTL_AB | RFE_CTL_DPF;
ret = smsc75xx_write_reg(dev, RFE_CTL, pdata->rfe_ctl);
check_warn_return(ret, "Failed to write RFE_CTL: %d", ret);
ret = smsc75xx_read_reg(dev, RFE_CTL, &pdata->rfe_ctl);
check_warn_return(ret, "Failed to read RFE_CTL: %d", ret);
netif_dbg(dev, ifup, dev->net, "RFE_CTL set to 0x%08x", pdata->rfe_ctl);
/* Enable or disable checksum offload engines */
ethtool_op_set_tx_hw_csum(dev->net, DEFAULT_TX_CSUM_ENABLE);
ret = smsc75xx_set_rx_csum_offload(dev);
check_warn_return(ret, "Failed to set rx csum offload: %d", ret);
smsc75xx_ethtool_set_tso(dev->net, DEFAULT_TSO_ENABLE);
smsc75xx_set_multicast(dev->net);
ret = smsc75xx_phy_initialize(dev);
check_warn_return(ret, "Failed to initialize PHY: %d", ret);
ret = smsc75xx_read_reg(dev, INT_EP_CTL, &buf);
check_warn_return(ret, "Failed to read INT_EP_CTL: %d", ret);
/* enable PHY interrupts */
buf |= INT_ENP_PHY_INT;
ret = smsc75xx_write_reg(dev, INT_EP_CTL, buf);
check_warn_return(ret, "Failed to write INT_EP_CTL: %d", ret);
ret = smsc75xx_read_reg(dev, MAC_TX, &buf);
check_warn_return(ret, "Failed to read MAC_TX: %d", ret);
buf |= MAC_TX_TXEN;
ret = smsc75xx_write_reg(dev, MAC_TX, buf);
check_warn_return(ret, "Failed to write MAC_TX: %d", ret);
netif_dbg(dev, ifup, dev->net, "MAC_TX set to 0x%08x", buf);
ret = smsc75xx_read_reg(dev, FCT_TX_CTL, &buf);
check_warn_return(ret, "Failed to read FCT_TX_CTL: %d", ret);
buf |= FCT_TX_CTL_EN;
ret = smsc75xx_write_reg(dev, FCT_TX_CTL, buf);
check_warn_return(ret, "Failed to write FCT_TX_CTL: %d", ret);
netif_dbg(dev, ifup, dev->net, "FCT_TX_CTL set to 0x%08x", buf);
ret = smsc75xx_set_rx_max_frame_length(dev, 1514);
check_warn_return(ret, "Failed to set max rx frame length");
ret = smsc75xx_read_reg(dev, MAC_RX, &buf);
check_warn_return(ret, "Failed to read MAC_RX: %d", ret);
buf |= MAC_RX_RXEN;
ret = smsc75xx_write_reg(dev, MAC_RX, buf);
check_warn_return(ret, "Failed to write MAC_RX: %d", ret);
netif_dbg(dev, ifup, dev->net, "MAC_RX set to 0x%08x", buf);
ret = smsc75xx_read_reg(dev, FCT_RX_CTL, &buf);
check_warn_return(ret, "Failed to read FCT_RX_CTL: %d", ret);
buf |= FCT_RX_CTL_EN;
ret = smsc75xx_write_reg(dev, FCT_RX_CTL, buf);
check_warn_return(ret, "Failed to write FCT_RX_CTL: %d", ret);
netif_dbg(dev, ifup, dev->net, "FCT_RX_CTL set to 0x%08x", buf);
netif_dbg(dev, ifup, dev->net, "smsc75xx_reset, return 0");
return 0;
}
static const struct net_device_ops smsc75xx_netdev_ops = {
.ndo_open = usbnet_open,
.ndo_stop = usbnet_stop,
.ndo_start_xmit = usbnet_start_xmit,
.ndo_tx_timeout = usbnet_tx_timeout,
.ndo_change_mtu = smsc75xx_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = smsc75xx_ioctl,
.ndo_set_multicast_list = smsc75xx_set_multicast,
};
static int smsc75xx_bind(struct usbnet *dev, struct usb_interface *intf)
{
struct smsc75xx_priv *pdata = NULL;
int ret;
printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
ret = usbnet_get_endpoints(dev, intf);
check_warn_return(ret, "usbnet_get_endpoints failed: %d", ret);
dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc75xx_priv),
GFP_KERNEL);
pdata = (struct smsc75xx_priv *)(dev->data[0]);
if (!pdata) {
netdev_warn(dev->net, "Unable to allocate smsc75xx_priv");
return -ENOMEM;
}
pdata->dev = dev;
spin_lock_init(&pdata->rfe_ctl_lock);
mutex_init(&pdata->dataport_mutex);
INIT_WORK(&pdata->set_multicast, smsc75xx_deferred_multicast_write);
pdata->use_rx_csum = DEFAULT_RX_CSUM_ENABLE;
/* We have to advertise SG otherwise TSO cannot be enabled */
dev->net->features |= NETIF_F_SG;
/* Init all registers */
ret = smsc75xx_reset(dev);
dev->net->netdev_ops = &smsc75xx_netdev_ops;
dev->net->ethtool_ops = &smsc75xx_ethtool_ops;
dev->net->flags |= IFF_MULTICAST;
dev->net->hard_header_len += SMSC75XX_TX_OVERHEAD;
return 0;
}
static void smsc75xx_unbind(struct usbnet *dev, struct usb_interface *intf)
{
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
if (pdata) {
netif_dbg(dev, ifdown, dev->net, "free pdata");
kfree(pdata);
pdata = NULL;
dev->data[0] = 0;
}
}
static void smsc75xx_rx_csum_offload(struct sk_buff *skb, u32 rx_cmd_a,
u32 rx_cmd_b)
{
if (unlikely(rx_cmd_a & RX_CMD_A_LCSM)) {
skb->ip_summed = CHECKSUM_NONE;
} else {
skb->csum = ntohs((u16)(rx_cmd_b >> RX_CMD_B_CSUM_SHIFT));
skb->ip_summed = CHECKSUM_COMPLETE;
}
}
static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
struct smsc75xx_priv *pdata = (struct smsc75xx_priv *)(dev->data[0]);
while (skb->len > 0) {
u32 rx_cmd_a, rx_cmd_b, align_count, size;
struct sk_buff *ax_skb;
unsigned char *packet;
memcpy(&rx_cmd_a, skb->data, sizeof(rx_cmd_a));
le32_to_cpus(&rx_cmd_a);
skb_pull(skb, 4);
memcpy(&rx_cmd_b, skb->data, sizeof(rx_cmd_b));
le32_to_cpus(&rx_cmd_b);
skb_pull(skb, 4 + NET_IP_ALIGN);
packet = skb->data;
/* get the packet length */
size = (rx_cmd_a & RX_CMD_A_LEN) - NET_IP_ALIGN;
align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4;
if (unlikely(rx_cmd_a & RX_CMD_A_RED)) {
netif_dbg(dev, rx_err, dev->net,
"Error rx_cmd_a=0x%08x", rx_cmd_a);
dev->net->stats.rx_errors++;
dev->net->stats.rx_dropped++;
if (rx_cmd_a & RX_CMD_A_FCS)
dev->net->stats.rx_crc_errors++;
else if (rx_cmd_a & (RX_CMD_A_LONG | RX_CMD_A_RUNT))
dev->net->stats.rx_frame_errors++;
} else {
/* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
if (unlikely(size > (ETH_FRAME_LEN + 12))) {
netif_dbg(dev, rx_err, dev->net,
"size err rx_cmd_a=0x%08x", rx_cmd_a);
return 0;
}
/* last frame in this batch */
if (skb->len == size) {
if (pdata->use_rx_csum)
smsc75xx_rx_csum_offload(skb, rx_cmd_a,
rx_cmd_b);
else
skb->ip_summed = CHECKSUM_NONE;
skb_trim(skb, skb->len - 4); /* remove fcs */
skb->truesize = size + sizeof(struct sk_buff);
return 1;
}
ax_skb = skb_clone(skb, GFP_ATOMIC);
if (unlikely(!ax_skb)) {
netdev_warn(dev->net, "Error allocating skb");
return 0;
}
ax_skb->len = size;
ax_skb->data = packet;
skb_set_tail_pointer(ax_skb, size);
if (pdata->use_rx_csum)
smsc75xx_rx_csum_offload(ax_skb, rx_cmd_a,
rx_cmd_b);
else
ax_skb->ip_summed = CHECKSUM_NONE;
skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
ax_skb->truesize = size + sizeof(struct sk_buff);
usbnet_skb_return(dev, ax_skb);
}
skb_pull(skb, size);
/* padding bytes before the next frame starts */
if (skb->len)
skb_pull(skb, align_count);
}
if (unlikely(skb->len < 0)) {
netdev_warn(dev->net, "invalid rx length<0 %d", skb->len);
return 0;
}
return 1;
}
static struct sk_buff *smsc75xx_tx_fixup(struct usbnet *dev,
struct sk_buff *skb, gfp_t flags)
{
u32 tx_cmd_a, tx_cmd_b;
skb_linearize(skb);
if (skb_headroom(skb) < SMSC75XX_TX_OVERHEAD) {
struct sk_buff *skb2 =
skb_copy_expand(skb, SMSC75XX_TX_OVERHEAD, 0, flags);
dev_kfree_skb_any(skb);
skb = skb2;
if (!skb)
return NULL;
}
tx_cmd_a = (u32)(skb->len & TX_CMD_A_LEN) | TX_CMD_A_FCS;
if (skb->ip_summed == CHECKSUM_PARTIAL)
tx_cmd_a |= TX_CMD_A_IPE | TX_CMD_A_TPE;
if (skb_is_gso(skb)) {
u16 mss = max(skb_shinfo(skb)->gso_size, TX_MSS_MIN);
tx_cmd_b = (mss << TX_CMD_B_MSS_SHIFT) & TX_CMD_B_MSS;
tx_cmd_a |= TX_CMD_A_LSO;
} else {
tx_cmd_b = 0;
}
skb_push(skb, 4);
cpu_to_le32s(&tx_cmd_b);
memcpy(skb->data, &tx_cmd_b, 4);
skb_push(skb, 4);
cpu_to_le32s(&tx_cmd_a);
memcpy(skb->data, &tx_cmd_a, 4);
return skb;
}
static const struct driver_info smsc75xx_info = {
.description = "smsc75xx USB 2.0 Gigabit Ethernet",
.bind = smsc75xx_bind,
.unbind = smsc75xx_unbind,
.link_reset = smsc75xx_link_reset,
.reset = smsc75xx_reset,
.rx_fixup = smsc75xx_rx_fixup,
.tx_fixup = smsc75xx_tx_fixup,
.status = smsc75xx_status,
.flags = FLAG_ETHER | FLAG_SEND_ZLP,
};
static const struct usb_device_id products[] = {
{
/* SMSC7500 USB Gigabit Ethernet Device */
USB_DEVICE(USB_VENDOR_ID_SMSC, USB_PRODUCT_ID_LAN7500),
.driver_info = (unsigned long) &smsc75xx_info,
},
{
/* SMSC7500 USB Gigabit Ethernet Device */
USB_DEVICE(USB_VENDOR_ID_SMSC, USB_PRODUCT_ID_LAN7505),
.driver_info = (unsigned long) &smsc75xx_info,
},
{ }, /* END */
};
MODULE_DEVICE_TABLE(usb, products);
static struct usb_driver smsc75xx_driver = {
.name = SMSC_CHIPNAME,
.id_table = products,
.probe = usbnet_probe,
.suspend = usbnet_suspend,
.resume = usbnet_resume,
.disconnect = usbnet_disconnect,
};
static int __init smsc75xx_init(void)
{
return usb_register(&smsc75xx_driver);
}
module_init(smsc75xx_init);
static void __exit smsc75xx_exit(void)
{
usb_deregister(&smsc75xx_driver);
}
module_exit(smsc75xx_exit);
MODULE_AUTHOR("Nancy Lin");
MODULE_AUTHOR("Steve Glendinning <steve.glendinning@smsc.com>");
MODULE_DESCRIPTION("SMSC75XX USB 2.0 Gigabit Ethernet Devices");
MODULE_LICENSE("GPL");
/***************************************************************************
*
* Copyright (C) 2007-2010 SMSC
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*****************************************************************************/
#ifndef _SMSC75XX_H
#define _SMSC75XX_H
/* Tx command words */
#define TX_CMD_A_LSO (0x08000000)
#define TX_CMD_A_IPE (0x04000000)
#define TX_CMD_A_TPE (0x02000000)
#define TX_CMD_A_IVTG (0x01000000)
#define TX_CMD_A_RVTG (0x00800000)
#define TX_CMD_A_FCS (0x00400000)
#define TX_CMD_A_LEN (0x000FFFFF)
#define TX_CMD_B_MSS (0x3FFF0000)
#define TX_CMD_B_MSS_SHIFT (16)
#define TX_MSS_MIN ((u16)8)
#define TX_CMD_B_VTAG (0x0000FFFF)
/* Rx command words */
#define RX_CMD_A_ICE (0x80000000)
#define RX_CMD_A_TCE (0x40000000)
#define RX_CMD_A_IPV (0x20000000)
#define RX_CMD_A_PID (0x18000000)
#define RX_CMD_A_PID_NIP (0x00000000)
#define RX_CMD_A_PID_TCP (0x08000000)
#define RX_CMD_A_PID_UDP (0x10000000)
#define RX_CMD_A_PID_PP (0x18000000)
#define RX_CMD_A_PFF (0x04000000)
#define RX_CMD_A_BAM (0x02000000)
#define RX_CMD_A_MAM (0x01000000)
#define RX_CMD_A_FVTG (0x00800000)
#define RX_CMD_A_RED (0x00400000)
#define RX_CMD_A_RWT (0x00200000)
#define RX_CMD_A_RUNT (0x00100000)
#define RX_CMD_A_LONG (0x00080000)
#define RX_CMD_A_RXE (0x00040000)
#define RX_CMD_A_DRB (0x00020000)
#define RX_CMD_A_FCS (0x00010000)
#define RX_CMD_A_UAM (0x00008000)
#define RX_CMD_A_LCSM (0x00004000)
#define RX_CMD_A_LEN (0x00003FFF)
#define RX_CMD_B_CSUM (0xFFFF0000)
#define RX_CMD_B_CSUM_SHIFT (16)
#define RX_CMD_B_VTAG (0x0000FFFF)
/* SCSRs */
#define ID_REV (0x0000)
#define FPGA_REV (0x0004)
#define BOND_CTL (0x0008)
#define INT_STS (0x000C)
#define INT_STS_RDFO_INT (0x00400000)
#define INT_STS_TXE_INT (0x00200000)
#define INT_STS_MACRTO_INT (0x00100000)
#define INT_STS_TX_DIS_INT (0x00080000)
#define INT_STS_RX_DIS_INT (0x00040000)
#define INT_STS_PHY_INT_ (0x00020000)
#define INT_STS_MAC_ERR_INT (0x00008000)
#define INT_STS_TDFU (0x00004000)
#define INT_STS_TDFO (0x00002000)
#define INT_STS_GPIOS (0x00000FFF)
#define INT_STS_CLEAR_ALL (0xFFFFFFFF)
#define HW_CFG (0x0010)
#define HW_CFG_SMDET_STS (0x00008000)
#define HW_CFG_SMDET_EN (0x00004000)
#define HW_CFG_EEM (0x00002000)
#define HW_CFG_RST_PROTECT (0x00001000)
#define HW_CFG_PORT_SWAP (0x00000800)
#define HW_CFG_PHY_BOOST (0x00000600)
#define HW_CFG_PHY_BOOST_NORMAL (0x00000000)
#define HW_CFG_PHY_BOOST_4 (0x00002000)
#define HW_CFG_PHY_BOOST_8 (0x00004000)
#define HW_CFG_PHY_BOOST_12 (0x00006000)
#define HW_CFG_LEDB (0x00000100)
#define HW_CFG_BIR (0x00000080)
#define HW_CFG_SBP (0x00000040)
#define HW_CFG_IME (0x00000020)
#define HW_CFG_MEF (0x00000010)
#define HW_CFG_ETC (0x00000008)
#define HW_CFG_BCE (0x00000004)
#define HW_CFG_LRST (0x00000002)
#define HW_CFG_SRST (0x00000001)
#define PMT_CTL (0x0014)
#define PMT_CTL_PHY_PWRUP (0x00000400)
#define PMT_CTL_RES_CLR_WKP_EN (0x00000100)
#define PMT_CTL_DEV_RDY (0x00000080)
#define PMT_CTL_SUS_MODE (0x00000060)
#define PMT_CTL_SUS_MODE_0 (0x00000000)
#define PMT_CTL_SUS_MODE_1 (0x00000020)
#define PMT_CTL_SUS_MODE_2 (0x00000040)
#define PMT_CTL_SUS_MODE_3 (0x00000060)
#define PMT_CTL_PHY_RST (0x00000010)
#define PMT_CTL_WOL_EN (0x00000008)
#define PMT_CTL_ED_EN (0x00000004)
#define PMT_CTL_WUPS (0x00000003)
#define PMT_CTL_WUPS_NO (0x00000000)
#define PMT_CTL_WUPS_ED (0x00000001)
#define PMT_CTL_WUPS_WOL (0x00000002)
#define PMT_CTL_WUPS_MULTI (0x00000003)
#define LED_GPIO_CFG (0x0018)
#define LED_GPIO_CFG_LED2_FUN_SEL (0x80000000)
#define LED_GPIO_CFG_LED10_FUN_SEL (0x40000000)
#define LED_GPIO_CFG_LEDGPIO_EN (0x0000F000)
#define LED_GPIO_CFG_LEDGPIO_EN_0 (0x00001000)
#define LED_GPIO_CFG_LEDGPIO_EN_1 (0x00002000)
#define LED_GPIO_CFG_LEDGPIO_EN_2 (0x00004000)
#define LED_GPIO_CFG_LEDGPIO_EN_3 (0x00008000)
#define LED_GPIO_CFG_GPBUF (0x00000F00)
#define LED_GPIO_CFG_GPBUF_0 (0x00000100)
#define LED_GPIO_CFG_GPBUF_1 (0x00000200)
#define LED_GPIO_CFG_GPBUF_2 (0x00000400)
#define LED_GPIO_CFG_GPBUF_3 (0x00000800)
#define LED_GPIO_CFG_GPDIR (0x000000F0)
#define LED_GPIO_CFG_GPDIR_0 (0x00000010)
#define LED_GPIO_CFG_GPDIR_1 (0x00000020)
#define LED_GPIO_CFG_GPDIR_2 (0x00000040)
#define LED_GPIO_CFG_GPDIR_3 (0x00000080)
#define LED_GPIO_CFG_GPDATA (0x0000000F)
#define LED_GPIO_CFG_GPDATA_0 (0x00000001)
#define LED_GPIO_CFG_GPDATA_1 (0x00000002)
#define LED_GPIO_CFG_GPDATA_2 (0x00000004)
#define LED_GPIO_CFG_GPDATA_3 (0x00000008)
#define GPIO_CFG (0x001C)
#define GPIO_CFG_SHIFT (24)
#define GPIO_CFG_GPEN (0xFF000000)
#define GPIO_CFG_GPBUF (0x00FF0000)
#define GPIO_CFG_GPDIR (0x0000FF00)
#define GPIO_CFG_GPDATA (0x000000FF)
#define GPIO_WAKE (0x0020)
#define GPIO_WAKE_PHY_LINKUP_EN (0x80000000)
#define GPIO_WAKE_POL (0x0FFF0000)
#define GPIO_WAKE_POL_SHIFT (16)
#define GPIO_WAKE_WK (0x00000FFF)
#define DP_SEL (0x0024)
#define DP_SEL_DPRDY (0x80000000)
#define DP_SEL_RSEL (0x0000000F)
#define DP_SEL_URX (0x00000000)
#define DP_SEL_VHF (0x00000001)
#define DP_SEL_VHF_HASH_LEN (16)
#define DP_SEL_VHF_VLAN_LEN (128)
#define DP_SEL_LSO_HEAD (0x00000002)
#define DP_SEL_FCT_RX (0x00000003)
#define DP_SEL_FCT_TX (0x00000004)
#define DP_SEL_DESCRIPTOR (0x00000005)
#define DP_SEL_WOL (0x00000006)
#define DP_CMD (0x0028)
#define DP_CMD_WRITE (0x01)
#define DP_CMD_READ (0x00)
#define DP_ADDR (0x002C)
#define DP_DATA (0x0030)
#define BURST_CAP (0x0034)
#define BURST_CAP_MASK (0x0000000F)
#define INT_EP_CTL (0x0038)
#define INT_EP_CTL_INTEP_ON (0x80000000)
#define INT_EP_CTL_RDFO_EN (0x00400000)
#define INT_EP_CTL_TXE_EN (0x00200000)
#define INT_EP_CTL_MACROTO_EN (0x00100000)
#define INT_EP_CTL_TX_DIS_EN (0x00080000)
#define INT_EP_CTL_RX_DIS_EN (0x00040000)
#define INT_EP_CTL_PHY_EN_ (0x00020000)
#define INT_EP_CTL_MAC_ERR_EN (0x00008000)
#define INT_EP_CTL_TDFU_EN (0x00004000)
#define INT_EP_CTL_TDFO_EN (0x00002000)
#define INT_EP_CTL_RX_FIFO_EN (0x00001000)
#define INT_EP_CTL_GPIOX_EN (0x00000FFF)
#define BULK_IN_DLY (0x003C)
#define BULK_IN_DLY_MASK (0xFFFF)
#define E2P_CMD (0x0040)
#define E2P_CMD_BUSY (0x80000000)
#define E2P_CMD_MASK (0x70000000)
#define E2P_CMD_READ (0x00000000)
#define E2P_CMD_EWDS (0x10000000)
#define E2P_CMD_EWEN (0x20000000)
#define E2P_CMD_WRITE (0x30000000)
#define E2P_CMD_WRAL (0x40000000)
#define E2P_CMD_ERASE (0x50000000)
#define E2P_CMD_ERAL (0x60000000)
#define E2P_CMD_RELOAD (0x70000000)
#define E2P_CMD_TIMEOUT (0x00000400)
#define E2P_CMD_LOADED (0x00000200)
#define E2P_CMD_ADDR (0x000001FF)
#define MAX_EEPROM_SIZE (512)
#define E2P_DATA (0x0044)
#define E2P_DATA_MASK_ (0x000000FF)
#define RFE_CTL (0x0060)
#define RFE_CTL_TCPUDP_CKM (0x00001000)
#define RFE_CTL_IP_CKM (0x00000800)
#define RFE_CTL_AB (0x00000400)
#define RFE_CTL_AM (0x00000200)
#define RFE_CTL_AU (0x00000100)
#define RFE_CTL_VS (0x00000080)
#define RFE_CTL_UF (0x00000040)
#define RFE_CTL_VF (0x00000020)
#define RFE_CTL_SPF (0x00000010)
#define RFE_CTL_MHF (0x00000008)
#define RFE_CTL_DHF (0x00000004)
#define RFE_CTL_DPF (0x00000002)
#define RFE_CTL_RST_RF (0x00000001)
#define VLAN_TYPE (0x0064)
#define VLAN_TYPE_MASK (0x0000FFFF)
#define FCT_RX_CTL (0x0090)
#define FCT_RX_CTL_EN (0x80000000)
#define FCT_RX_CTL_RST (0x40000000)
#define FCT_RX_CTL_SBF (0x02000000)
#define FCT_RX_CTL_OVERFLOW (0x01000000)
#define FCT_RX_CTL_FRM_DROP (0x00800000)
#define FCT_RX_CTL_RX_NOT_EMPTY (0x00400000)
#define FCT_RX_CTL_RX_EMPTY (0x00200000)
#define FCT_RX_CTL_RX_DISABLED (0x00100000)
#define FCT_RX_CTL_RXUSED (0x0000FFFF)
#define FCT_TX_CTL (0x0094)
#define FCT_TX_CTL_EN (0x80000000)
#define FCT_TX_CTL_RST (0x40000000)
#define FCT_TX_CTL_TX_NOT_EMPTY (0x00400000)
#define FCT_TX_CTL_TX_EMPTY (0x00200000)
#define FCT_TX_CTL_TX_DISABLED (0x00100000)
#define FCT_TX_CTL_TXUSED (0x0000FFFF)
#define FCT_RX_FIFO_END (0x0098)
#define FCT_RX_FIFO_END_MASK (0x0000007F)
#define FCT_TX_FIFO_END (0x009C)
#define FCT_TX_FIFO_END_MASK (0x0000003F)
#define FCT_FLOW (0x00A0)
#define FCT_FLOW_THRESHOLD_OFF (0x00007F00)
#define FCT_FLOW_THRESHOLD_OFF_SHIFT (8)
#define FCT_FLOW_THRESHOLD_ON (0x0000007F)
/* MAC CSRs */
#define MAC_CR (0x100)
#define MAC_CR_ADP (0x00002000)
#define MAC_CR_ADD (0x00001000)
#define MAC_CR_ASD (0x00000800)
#define MAC_CR_INT_LOOP (0x00000400)
#define MAC_CR_BOLMT (0x000000C0)
#define MAC_CR_FDPX (0x00000008)
#define MAC_CR_CFG (0x00000006)
#define MAC_CR_CFG_10 (0x00000000)
#define MAC_CR_CFG_100 (0x00000002)
#define MAC_CR_CFG_1000 (0x00000004)
#define MAC_CR_RST (0x00000001)
#define MAC_RX (0x104)
#define MAC_RX_MAX_SIZE (0x3FFF0000)
#define MAC_RX_MAX_SIZE_SHIFT (16)
#define MAC_RX_FCS_STRIP (0x00000010)
#define MAC_RX_FSE (0x00000004)
#define MAC_RX_RXD (0x00000002)
#define MAC_RX_RXEN (0x00000001)
#define MAC_TX (0x108)
#define MAC_TX_BFCS (0x00000004)
#define MAC_TX_TXD (0x00000002)
#define MAC_TX_TXEN (0x00000001)
#define FLOW (0x10C)
#define FLOW_FORCE_FC (0x80000000)
#define FLOW_TX_FCEN (0x40000000)
#define FLOW_RX_FCEN (0x20000000)
#define FLOW_FPF (0x10000000)
#define FLOW_PAUSE_TIME (0x0000FFFF)
#define RAND_SEED (0x110)
#define RAND_SEED_MASK (0x0000FFFF)
#define ERR_STS (0x114)
#define ERR_STS_FCS_ERR (0x00000100)
#define ERR_STS_LFRM_ERR (0x00000080)
#define ERR_STS_RUNT_ERR (0x00000040)
#define ERR_STS_COLLISION_ERR (0x00000010)
#define ERR_STS_ALIGN_ERR (0x00000008)
#define ERR_STS_URUN_ERR (0x00000004)
#define RX_ADDRH (0x118)
#define RX_ADDRH_MASK (0x0000FFFF)
#define RX_ADDRL (0x11C)
#define MII_ACCESS (0x120)
#define MII_ACCESS_PHY_ADDR (0x0000F800)
#define MII_ACCESS_PHY_ADDR_SHIFT (11)
#define MII_ACCESS_REG_ADDR (0x000007C0)
#define MII_ACCESS_REG_ADDR_SHIFT (6)
#define MII_ACCESS_READ (0x00000000)
#define MII_ACCESS_WRITE (0x00000002)
#define MII_ACCESS_BUSY (0x00000001)
#define MII_DATA (0x124)
#define MII_DATA_MASK (0x0000FFFF)
#define WUCSR (0x140)
#define WUCSR_PFDA_FR (0x00000080)
#define WUCSR_WUFR (0x00000040)
#define WUCSR_MPR (0x00000020)
#define WUCSR_BCAST_FR (0x00000010)
#define WUCSR_PFDA_EN (0x00000008)
#define WUCSR_WUEN (0x00000004)
#define WUCSR_MPEN (0x00000002)
#define WUCSR_BCST_EN (0x00000001)
#define WUF_CFGX (0x144)
#define WUF_CFGX_EN (0x80000000)
#define WUF_CFGX_ATYPE (0x03000000)
#define WUF_CFGX_ATYPE_UNICAST (0x00000000)
#define WUF_CFGX_ATYPE_MULTICAST (0x02000000)
#define WUF_CFGX_ATYPE_ALL (0x03000000)
#define WUF_CFGX_PATTERN_OFFSET (0x007F0000)
#define WUF_CFGX_PATTERN_OFFSET_SHIFT (16)
#define WUF_CFGX_CRC16 (0x0000FFFF)
#define WUF_NUM (8)
#define WUF_MASKX (0x170)
#define WUF_MASKX_AVALID (0x80000000)
#define WUF_MASKX_ATYPE (0x40000000)
#define ADDR_FILTX (0x300)
#define ADDR_FILTX_FB_VALID (0x80000000)
#define ADDR_FILTX_FB_TYPE (0x40000000)
#define ADDR_FILTX_FB_ADDRHI (0x0000FFFF)
#define ADDR_FILTX_SB_ADDRLO (0xFFFFFFFF)
#define WUCSR2 (0x500)
#define WUCSR2_NS_RCD (0x00000040)
#define WUCSR2_ARP_RCD (0x00000020)
#define WUCSR2_TCPSYN_RCD (0x00000010)
#define WUCSR2_NS_OFFLOAD (0x00000004)
#define WUCSR2_ARP_OFFLOAD (0x00000002)
#define WUCSR2_TCPSYN_OFFLOAD (0x00000001)
#define WOL_FIFO_STS (0x504)
#define IPV6_ADDRX (0x510)
#define IPV4_ADDRX (0x590)
/* Vendor-specific PHY Definitions */
/* Mode Control/Status Register */
#define PHY_MODE_CTRL_STS (17)
#define MODE_CTRL_STS_EDPWRDOWN ((u16)0x2000)
#define MODE_CTRL_STS_ENERGYON ((u16)0x0002)
#define PHY_INT_SRC (29)
#define PHY_INT_SRC_ENERGY_ON ((u16)0x0080)
#define PHY_INT_SRC_ANEG_COMP ((u16)0x0040)
#define PHY_INT_SRC_REMOTE_FAULT ((u16)0x0020)
#define PHY_INT_SRC_LINK_DOWN ((u16)0x0010)
#define PHY_INT_MASK (30)
#define PHY_INT_MASK_ENERGY_ON ((u16)0x0080)
#define PHY_INT_MASK_ANEG_COMP ((u16)0x0040)
#define PHY_INT_MASK_REMOTE_FAULT ((u16)0x0020)
#define PHY_INT_MASK_LINK_DOWN ((u16)0x0010)
#define PHY_INT_MASK_DEFAULT (PHY_INT_MASK_ANEG_COMP | \
PHY_INT_MASK_LINK_DOWN)
#define PHY_SPECIAL (31)
#define PHY_SPECIAL_SPD ((u16)0x001C)
#define PHY_SPECIAL_SPD_10HALF ((u16)0x0004)
#define PHY_SPECIAL_SPD_10FULL ((u16)0x0014)
#define PHY_SPECIAL_SPD_100HALF ((u16)0x0008)
#define PHY_SPECIAL_SPD_100FULL ((u16)0x0018)
/* USB Vendor Requests */
#define USB_VENDOR_REQUEST_WRITE_REGISTER 0xA0
#define USB_VENDOR_REQUEST_READ_REGISTER 0xA1
#define USB_VENDOR_REQUEST_GET_STATS 0xA2
/* Interrupt Endpoint status word bitfields */
#define INT_ENP_RDFO_INT ((u32)BIT(22))
#define INT_ENP_TXE_INT ((u32)BIT(21))
#define INT_ENP_TX_DIS_INT ((u32)BIT(19))
#define INT_ENP_RX_DIS_INT ((u32)BIT(18))
#define INT_ENP_PHY_INT ((u32)BIT(17))
#define INT_ENP_MAC_ERR_INT ((u32)BIT(15))
#define INT_ENP_RX_FIFO_DATA_INT ((u32)BIT(12))
#endif /* _SMSC75XX_H */
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