+++ /dev/null
-/*
- * Copyright (c) 2002 Petko Manolov (petkan@users.sourceforge.net)
- *
- * 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.
- */
-
-#include <linux/init.h>
-#include <linux/signal.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-#include <linux/usb.h>
-#include <asm/uaccess.h>
-
-/* Version Information */
-#define DRIVER_VERSION "v0.6.2 (2004/08/27)"
-#define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>"
-#define DRIVER_DESC "rtl8150 based usb-ethernet driver"
-
-#define IDR 0x0120
-#define MAR 0x0126
-#define CR 0x012e
-#define TCR 0x012f
-#define RCR 0x0130
-#define TSR 0x0132
-#define RSR 0x0133
-#define CON0 0x0135
-#define CON1 0x0136
-#define MSR 0x0137
-#define PHYADD 0x0138
-#define PHYDAT 0x0139
-#define PHYCNT 0x013b
-#define GPPC 0x013d
-#define BMCR 0x0140
-#define BMSR 0x0142
-#define ANAR 0x0144
-#define ANLP 0x0146
-#define AER 0x0148
-#define CSCR 0x014C /* This one has the link status */
-#define CSCR_LINK_STATUS (1 << 3)
-
-#define IDR_EEPROM 0x1202
-
-#define PHY_READ 0
-#define PHY_WRITE 0x20
-#define PHY_GO 0x40
-
-#define MII_TIMEOUT 10
-#define INTBUFSIZE 8
-
-#define RTL8150_REQT_READ 0xc0
-#define RTL8150_REQT_WRITE 0x40
-#define RTL8150_REQ_GET_REGS 0x05
-#define RTL8150_REQ_SET_REGS 0x05
-
-
-/* Transmit status register errors */
-#define TSR_ECOL (1<<5)
-#define TSR_LCOL (1<<4)
-#define TSR_LOSS_CRS (1<<3)
-#define TSR_JBR (1<<2)
-#define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR)
-/* Receive status register errors */
-#define RSR_CRC (1<<2)
-#define RSR_FAE (1<<1)
-#define RSR_ERRORS (RSR_CRC | RSR_FAE)
-
-/* Media status register definitions */
-#define MSR_DUPLEX (1<<4)
-#define MSR_SPEED (1<<3)
-#define MSR_LINK (1<<2)
-
-/* Interrupt pipe data */
-#define INT_TSR 0x00
-#define INT_RSR 0x01
-#define INT_MSR 0x02
-#define INT_WAKSR 0x03
-#define INT_TXOK_CNT 0x04
-#define INT_RXLOST_CNT 0x05
-#define INT_CRERR_CNT 0x06
-#define INT_COL_CNT 0x07
-
-/* Transmit status register errors */
-#define TSR_ECOL (1<<5)
-#define TSR_LCOL (1<<4)
-#define TSR_LOSS_CRS (1<<3)
-#define TSR_JBR (1<<2)
-#define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR)
-/* Receive status register errors */
-#define RSR_CRC (1<<2)
-#define RSR_FAE (1<<1)
-#define RSR_ERRORS (RSR_CRC | RSR_FAE)
-
-/* Media status register definitions */
-#define MSR_DUPLEX (1<<4)
-#define MSR_SPEED (1<<3)
-#define MSR_LINK (1<<2)
-
-/* Interrupt pipe data */
-#define INT_TSR 0x00
-#define INT_RSR 0x01
-#define INT_MSR 0x02
-#define INT_WAKSR 0x03
-#define INT_TXOK_CNT 0x04
-#define INT_RXLOST_CNT 0x05
-#define INT_CRERR_CNT 0x06
-#define INT_COL_CNT 0x07
-
-
-#define RTL8150_MTU 1540
-#define RTL8150_TX_TIMEOUT (HZ)
-#define RX_SKB_POOL_SIZE 4
-
-/* rtl8150 flags */
-#define RTL8150_HW_CRC 0
-#define RX_REG_SET 1
-#define RTL8150_UNPLUG 2
-#define RX_URB_FAIL 3
-
-/* Define these values to match your device */
-#define VENDOR_ID_REALTEK 0x0bda
-#define VENDOR_ID_MELCO 0x0411
-#define VENDOR_ID_MICRONET 0x3980
-#define VENDOR_ID_LONGSHINE 0x07b8
-#define VENDOR_ID_OQO 0x1557
-#define VENDOR_ID_ZYXEL 0x0586
-
-#define PRODUCT_ID_RTL8150 0x8150
-#define PRODUCT_ID_LUAKTX 0x0012
-#define PRODUCT_ID_LCS8138TX 0x401a
-#define PRODUCT_ID_SP128AR 0x0003
-#define PRODUCT_ID_PRESTIGE 0x401a
-
-#undef EEPROM_WRITE
-
-/* table of devices that work with this driver */
-static struct usb_device_id rtl8150_table[] = {
- {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8150)},
- {USB_DEVICE(VENDOR_ID_MELCO, PRODUCT_ID_LUAKTX)},
- {USB_DEVICE(VENDOR_ID_MICRONET, PRODUCT_ID_SP128AR)},
- {USB_DEVICE(VENDOR_ID_LONGSHINE, PRODUCT_ID_LCS8138TX)},
- {USB_DEVICE(VENDOR_ID_OQO, PRODUCT_ID_RTL8150)},
- {USB_DEVICE(VENDOR_ID_ZYXEL, PRODUCT_ID_PRESTIGE)},
- {}
-};
-
-MODULE_DEVICE_TABLE(usb, rtl8150_table);
-
-struct rtl8150 {
- unsigned long flags;
- struct usb_device *udev;
- struct tasklet_struct tl;
- struct net_device_stats stats;
- struct net_device *netdev;
- struct urb *rx_urb, *tx_urb, *intr_urb, *ctrl_urb;
- struct sk_buff *tx_skb, *rx_skb;
- struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE];
- spinlock_t rx_pool_lock;
- struct usb_ctrlrequest dr;
- int intr_interval;
- __le16 rx_creg;
- u8 *intr_buff;
- u8 phy;
-};
-
-typedef struct rtl8150 rtl8150_t;
-
-static void fill_skb_pool(rtl8150_t *);
-static void free_skb_pool(rtl8150_t *);
-static inline struct sk_buff *pull_skb(rtl8150_t *);
-static void rtl8150_disconnect(struct usb_interface *intf);
-static int rtl8150_probe(struct usb_interface *intf,
- const struct usb_device_id *id);
-static int rtl8150_suspend(struct usb_interface *intf, pm_message_t message);
-static int rtl8150_resume(struct usb_interface *intf);
-
-static const char driver_name [] = "rtl8150";
-
-static struct usb_driver rtl8150_driver = {
- .name = driver_name,
- .probe = rtl8150_probe,
- .disconnect = rtl8150_disconnect,
- .id_table = rtl8150_table,
- .suspend = rtl8150_suspend,
- .resume = rtl8150_resume
-};
-
-/*
-**
-** device related part of the code
-**
-*/
-static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
-{
- return usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
- RTL8150_REQ_GET_REGS, RTL8150_REQT_READ,
- indx, 0, data, size, 500);
-}
-
-static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data)
-{
- return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
- RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE,
- indx, 0, data, size, 500);
-}
-
-static void ctrl_callback(struct urb *urb)
-{
- rtl8150_t *dev;
-
- switch (urb->status) {
- case 0:
- break;
- case -EINPROGRESS:
- break;
- case -ENOENT:
- break;
- default:
- warn("ctrl urb status %d", urb->status);
- }
- dev = urb->context;
- clear_bit(RX_REG_SET, &dev->flags);
-}
-
-static int async_set_registers(rtl8150_t * dev, u16 indx, u16 size)
-{
- int ret;
-
- if (test_bit(RX_REG_SET, &dev->flags))
- return -EAGAIN;
-
- dev->dr.bRequestType = RTL8150_REQT_WRITE;
- dev->dr.bRequest = RTL8150_REQ_SET_REGS;
- dev->dr.wValue = cpu_to_le16(indx);
- dev->dr.wIndex = 0;
- dev->dr.wLength = cpu_to_le16(size);
- dev->ctrl_urb->transfer_buffer_length = size;
- usb_fill_control_urb(dev->ctrl_urb, dev->udev,
- usb_sndctrlpipe(dev->udev, 0), (char *) &dev->dr,
- &dev->rx_creg, size, ctrl_callback, dev);
- if ((ret = usb_submit_urb(dev->ctrl_urb, GFP_ATOMIC))) {
- if (ret == -ENODEV)
- netif_device_detach(dev->netdev);
- err("control request submission failed: %d", ret);
- } else
- set_bit(RX_REG_SET, &dev->flags);
-
- return ret;
-}
-
-static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg)
-{
- int i;
- u8 data[3], tmp;
-
- data[0] = phy;
- data[1] = data[2] = 0;
- tmp = indx | PHY_READ | PHY_GO;
- i = 0;
-
- set_registers(dev, PHYADD, sizeof(data), data);
- set_registers(dev, PHYCNT, 1, &tmp);
- do {
- get_registers(dev, PHYCNT, 1, data);
- } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT));
-
- if (i < MII_TIMEOUT) {
- get_registers(dev, PHYDAT, 2, data);
- *reg = data[0] | (data[1] << 8);
- return 0;
- } else
- return 1;
-}
-
-static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg)
-{
- int i;
- u8 data[3], tmp;
-
- data[0] = phy;
- data[1] = reg & 0xff;
- data[2] = (reg >> 8) & 0xff;
- tmp = indx | PHY_WRITE | PHY_GO;
- i = 0;
-
- set_registers(dev, PHYADD, sizeof(data), data);
- set_registers(dev, PHYCNT, 1, &tmp);
- do {
- get_registers(dev, PHYCNT, 1, data);
- } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT));
-
- if (i < MII_TIMEOUT)
- return 0;
- else
- return 1;
-}
-
-static inline void set_ethernet_addr(rtl8150_t * dev)
-{
- u8 node_id[6];
-
- get_registers(dev, IDR, sizeof(node_id), node_id);
- memcpy(dev->netdev->dev_addr, node_id, sizeof(node_id));
-}
-
-static int rtl8150_set_mac_address(struct net_device *netdev, void *p)
-{
- struct sockaddr *addr = p;
- rtl8150_t *dev = netdev_priv(netdev);
- int i;
-
- if (netif_running(netdev))
- return -EBUSY;
-
- memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
- dbg("%s: Setting MAC address to ", netdev->name);
- for (i = 0; i < 5; i++)
- dbg("%02X:", netdev->dev_addr[i]);
- dbg("%02X\n", netdev->dev_addr[i]);
- /* Set the IDR registers. */
- set_registers(dev, IDR, sizeof(netdev->dev_addr), netdev->dev_addr);
-#ifdef EEPROM_WRITE
- {
- u8 cr;
- /* Get the CR contents. */
- get_registers(dev, CR, 1, &cr);
- /* Set the WEPROM bit (eeprom write enable). */
- cr |= 0x20;
- set_registers(dev, CR, 1, &cr);
- /* Write the MAC address into eeprom. Eeprom writes must be word-sized,
- so we need to split them up. */
- for (i = 0; i * 2 < netdev->addr_len; i++) {
- set_registers(dev, IDR_EEPROM + (i * 2), 2,
- netdev->dev_addr + (i * 2));
- }
- /* Clear the WEPROM bit (preventing accidental eeprom writes). */
- cr &= 0xdf;
- set_registers(dev, CR, 1, &cr);
- }
-#endif
- return 0;
-}
-
-static int rtl8150_reset(rtl8150_t * dev)
-{
- u8 data = 0x10;
- int i = HZ;
-
- set_registers(dev, CR, 1, &data);
- do {
- get_registers(dev, CR, 1, &data);
- } while ((data & 0x10) && --i);
-
- return (i > 0) ? 1 : 0;
-}
-
-static int alloc_all_urbs(rtl8150_t * dev)
-{
- dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!dev->rx_urb)
- return 0;
- dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!dev->tx_urb) {
- usb_free_urb(dev->rx_urb);
- return 0;
- }
- dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!dev->intr_urb) {
- usb_free_urb(dev->rx_urb);
- usb_free_urb(dev->tx_urb);
- return 0;
- }
- dev->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!dev->intr_urb) {
- usb_free_urb(dev->rx_urb);
- usb_free_urb(dev->tx_urb);
- usb_free_urb(dev->intr_urb);
- return 0;
- }
-
- return 1;
-}
-
-static void free_all_urbs(rtl8150_t * dev)
-{
- usb_free_urb(dev->rx_urb);
- usb_free_urb(dev->tx_urb);
- usb_free_urb(dev->intr_urb);
- usb_free_urb(dev->ctrl_urb);
-}
-
-static void unlink_all_urbs(rtl8150_t * dev)
-{
- usb_kill_urb(dev->rx_urb);
- usb_kill_urb(dev->tx_urb);
- usb_kill_urb(dev->intr_urb);
- usb_kill_urb(dev->ctrl_urb);
-}
-
-static inline struct sk_buff *pull_skb(rtl8150_t *dev)
-{
- struct sk_buff *skb;
- int i;
-
- for (i = 0; i < RX_SKB_POOL_SIZE; i++) {
- if (dev->rx_skb_pool[i]) {
- skb = dev->rx_skb_pool[i];
- dev->rx_skb_pool[i] = NULL;
- return skb;
- }
- }
- return NULL;
-}
-
-static void read_bulk_callback(struct urb *urb)
-{
- rtl8150_t *dev;
- unsigned pkt_len, res;
- struct sk_buff *skb;
- struct net_device *netdev;
- u16 rx_stat;
- int status;
-
- dev = urb->context;
- if (!dev)
- return;
- if (test_bit(RTL8150_UNPLUG, &dev->flags))
- return;
- netdev = dev->netdev;
- if (!netif_device_present(netdev))
- return;
-
- switch (urb->status) {
- case 0:
- break;
- case -ENOENT:
- return; /* the urb is in unlink state */
- case -ETIME:
- warn("may be reset is needed?..");
- goto goon;
- default:
- warn("Rx status %d", urb->status);
- goto goon;
- }
-
- if (!dev->rx_skb)
- goto resched;
- /* protect against short packets (tell me why we got some?!?) */
- if (urb->actual_length < 4)
- goto goon;
-
- res = urb->actual_length;
- rx_stat = le16_to_cpu(*(__le16 *)(urb->transfer_buffer + res - 4));
- pkt_len = res - 4;
-
- skb_put(dev->rx_skb, pkt_len);
- dev->rx_skb->protocol = eth_type_trans(dev->rx_skb, netdev);
- netif_rx(dev->rx_skb);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += pkt_len;
-
- spin_lock(&dev->rx_pool_lock);
- skb = pull_skb(dev);
- spin_unlock(&dev->rx_pool_lock);
- if (!skb)
- goto resched;
-
- dev->rx_skb = skb;
-goon:
- usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
- dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
- status = usb_submit_urb(dev->rx_urb, GFP_ATOMIC);
- if (status == -ENODEV)
- netif_device_detach(dev->netdev);
- else if (status) {
- set_bit(RX_URB_FAIL, &dev->flags);
- goto resched;
- } else {
- clear_bit(RX_URB_FAIL, &dev->flags);
- }
-
- return;
-resched:
- tasklet_schedule(&dev->tl);
-}
-
-static void rx_fixup(unsigned long data)
-{
- rtl8150_t *dev;
- struct sk_buff *skb;
- int status;
-
- dev = (rtl8150_t *)data;
-
- spin_lock_irq(&dev->rx_pool_lock);
- fill_skb_pool(dev);
- spin_unlock_irq(&dev->rx_pool_lock);
- if (test_bit(RX_URB_FAIL, &dev->flags))
- if (dev->rx_skb)
- goto try_again;
- spin_lock_irq(&dev->rx_pool_lock);
- skb = pull_skb(dev);
- spin_unlock_irq(&dev->rx_pool_lock);
- if (skb == NULL)
- goto tlsched;
- dev->rx_skb = skb;
- usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
- dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
-try_again:
- status = usb_submit_urb(dev->rx_urb, GFP_ATOMIC);
- if (status == -ENODEV) {
- netif_device_detach(dev->netdev);
- } else if (status) {
- set_bit(RX_URB_FAIL, &dev->flags);
- goto tlsched;
- } else {
- clear_bit(RX_URB_FAIL, &dev->flags);
- }
-
- return;
-tlsched:
- tasklet_schedule(&dev->tl);
-}
-
-static void write_bulk_callback(struct urb *urb)
-{
- rtl8150_t *dev;
-
- dev = urb->context;
- if (!dev)
- return;
- dev_kfree_skb_irq(dev->tx_skb);
- if (!netif_device_present(dev->netdev))
- return;
- if (urb->status)
- info("%s: Tx status %d", dev->netdev->name, urb->status);
- dev->netdev->trans_start = jiffies;
- netif_wake_queue(dev->netdev);
-}
-
-static void intr_callback(struct urb *urb)
-{
- rtl8150_t *dev;
- __u8 *d;
- int status;
-
- dev = urb->context;
- if (!dev)
- return;
- switch (urb->status) {
- case 0: /* success */
- break;
- case -ECONNRESET: /* unlink */
- case -ENOENT:
- case -ESHUTDOWN:
- return;
- /* -EPIPE: should clear the halt */
- default:
- info("%s: intr status %d", dev->netdev->name, urb->status);
- goto resubmit;
- }
-
- d = urb->transfer_buffer;
- if (d[0] & TSR_ERRORS) {
- dev->stats.tx_errors++;
- if (d[INT_TSR] & (TSR_ECOL | TSR_JBR))
- dev->stats.tx_aborted_errors++;
- if (d[INT_TSR] & TSR_LCOL)
- dev->stats.tx_window_errors++;
- if (d[INT_TSR] & TSR_LOSS_CRS)
- dev->stats.tx_carrier_errors++;
- }
- /* Report link status changes to the network stack */
- if ((d[INT_MSR] & MSR_LINK) == 0) {
- if (netif_carrier_ok(dev->netdev)) {
- netif_carrier_off(dev->netdev);
- dbg("%s: LINK LOST\n", __func__);
- }
- } else {
- if (!netif_carrier_ok(dev->netdev)) {
- netif_carrier_on(dev->netdev);
- dbg("%s: LINK CAME BACK\n", __func__);
- }
- }
-
-resubmit:
- status = usb_submit_urb (urb, GFP_ATOMIC);
- if (status == -ENODEV)
- netif_device_detach(dev->netdev);
- else if (status)
- err ("can't resubmit intr, %s-%s/input0, status %d",
- dev->udev->bus->bus_name,
- dev->udev->devpath, status);
-}
-
-static int rtl8150_suspend(struct usb_interface *intf, pm_message_t message)
-{
- rtl8150_t *dev = usb_get_intfdata(intf);
-
- netif_device_detach(dev->netdev);
-
- if (netif_running(dev->netdev)) {
- usb_kill_urb(dev->rx_urb);
- usb_kill_urb(dev->intr_urb);
- }
- return 0;
-}
-
-static int rtl8150_resume(struct usb_interface *intf)
-{
- rtl8150_t *dev = usb_get_intfdata(intf);
-
- netif_device_attach(dev->netdev);
- if (netif_running(dev->netdev)) {
- dev->rx_urb->status = 0;
- dev->rx_urb->actual_length = 0;
- read_bulk_callback(dev->rx_urb);
-
- dev->intr_urb->status = 0;
- dev->intr_urb->actual_length = 0;
- intr_callback(dev->intr_urb);
- }
- return 0;
-}
-
-/*
-**
-** network related part of the code
-**
-*/
-
-static void fill_skb_pool(rtl8150_t *dev)
-{
- struct sk_buff *skb;
- int i;
-
- for (i = 0; i < RX_SKB_POOL_SIZE; i++) {
- if (dev->rx_skb_pool[i])
- continue;
- skb = dev_alloc_skb(RTL8150_MTU + 2);
- if (!skb) {
- return;
- }
- skb_reserve(skb, 2);
- dev->rx_skb_pool[i] = skb;
- }
-}
-
-static void free_skb_pool(rtl8150_t *dev)
-{
- int i;
-
- for (i = 0; i < RX_SKB_POOL_SIZE; i++)
- if (dev->rx_skb_pool[i])
- dev_kfree_skb(dev->rx_skb_pool[i]);
-}
-
-static int enable_net_traffic(rtl8150_t * dev)
-{
- u8 cr, tcr, rcr, msr;
-
- if (!rtl8150_reset(dev)) {
- warn("%s - device reset failed", __FUNCTION__);
- }
- /* RCR bit7=1 attach Rx info at the end; =0 HW CRC (which is broken) */
- rcr = 0x9e;
- dev->rx_creg = cpu_to_le16(rcr);
- tcr = 0xd8;
- cr = 0x0c;
- if (!(rcr & 0x80))
- set_bit(RTL8150_HW_CRC, &dev->flags);
- set_registers(dev, RCR, 1, &rcr);
- set_registers(dev, TCR, 1, &tcr);
- set_registers(dev, CR, 1, &cr);
- get_registers(dev, MSR, 1, &msr);
-
- return 0;
-}
-
-static void disable_net_traffic(rtl8150_t * dev)
-{
- u8 cr;
-
- get_registers(dev, CR, 1, &cr);
- cr &= 0xf3;
- set_registers(dev, CR, 1, &cr);
-}
-
-static struct net_device_stats *rtl8150_netdev_stats(struct net_device *dev)
-{
- return &((rtl8150_t *)netdev_priv(dev))->stats;
-}
-
-static void rtl8150_tx_timeout(struct net_device *netdev)
-{
- rtl8150_t *dev = netdev_priv(netdev);
- warn("%s: Tx timeout.", netdev->name);
- usb_unlink_urb(dev->tx_urb);
- dev->stats.tx_errors++;
-}
-
-static void rtl8150_set_multicast(struct net_device *netdev)
-{
- rtl8150_t *dev = netdev_priv(netdev);
- netif_stop_queue(netdev);
- if (netdev->flags & IFF_PROMISC) {
- dev->rx_creg |= cpu_to_le16(0x0001);
- info("%s: promiscuous mode", netdev->name);
- } else if (netdev->mc_count ||
- (netdev->flags & IFF_ALLMULTI)) {
- dev->rx_creg &= cpu_to_le16(0xfffe);
- dev->rx_creg |= cpu_to_le16(0x0002);
- info("%s: allmulti set", netdev->name);
- } else {
- /* ~RX_MULTICAST, ~RX_PROMISCUOUS */
- dev->rx_creg &= cpu_to_le16(0x00fc);
- }
- async_set_registers(dev, RCR, 2);
- netif_wake_queue(netdev);
-}
-
-static int rtl8150_start_xmit(struct sk_buff *skb, struct net_device *netdev)
-{
- rtl8150_t *dev = netdev_priv(netdev);
- int count, res;
-
- netif_stop_queue(netdev);
- count = (skb->len < 60) ? 60 : skb->len;
- count = (count & 0x3f) ? count : count + 1;
- dev->tx_skb = skb;
- usb_fill_bulk_urb(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2),
- skb->data, count, write_bulk_callback, dev);
- if ((res = usb_submit_urb(dev->tx_urb, GFP_ATOMIC))) {
- /* Can we get/handle EPIPE here? */
- if (res == -ENODEV)
- netif_device_detach(dev->netdev);
- else {
- warn("failed tx_urb %d\n", res);
- dev->stats.tx_errors++;
- netif_start_queue(netdev);
- }
- } else {
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
- netdev->trans_start = jiffies;
- }
-
- return 0;
-}
-
-
-static void set_carrier(struct net_device *netdev)
-{
- rtl8150_t *dev = netdev_priv(netdev);
- short tmp;
-
- get_registers(dev, CSCR, 2, &tmp);
- if (tmp & CSCR_LINK_STATUS)
- netif_carrier_on(netdev);
- else
- netif_carrier_off(netdev);
-}
-
-static int rtl8150_open(struct net_device *netdev)
-{
- rtl8150_t *dev = netdev_priv(netdev);
- int res;
-
- if (dev->rx_skb == NULL)
- dev->rx_skb = pull_skb(dev);
- if (!dev->rx_skb)
- return -ENOMEM;
-
- set_registers(dev, IDR, 6, netdev->dev_addr);
-
- usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1),
- dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev);
- if ((res = usb_submit_urb(dev->rx_urb, GFP_KERNEL))) {
- if (res == -ENODEV)
- netif_device_detach(dev->netdev);
- warn("%s: rx_urb submit failed: %d", __FUNCTION__, res);
- return res;
- }
- usb_fill_int_urb(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3),
- dev->intr_buff, INTBUFSIZE, intr_callback,
- dev, dev->intr_interval);
- if ((res = usb_submit_urb(dev->intr_urb, GFP_KERNEL))) {
- if (res == -ENODEV)
- netif_device_detach(dev->netdev);
- warn("%s: intr_urb submit failed: %d", __FUNCTION__, res);
- usb_kill_urb(dev->rx_urb);
- return res;
- }
- enable_net_traffic(dev);
- set_carrier(netdev);
- netif_start_queue(netdev);
-
- return res;
-}
-
-static int rtl8150_close(struct net_device *netdev)
-{
- rtl8150_t *dev = netdev_priv(netdev);
- int res = 0;
-
- netif_stop_queue(netdev);
- if (!test_bit(RTL8150_UNPLUG, &dev->flags))
- disable_net_traffic(dev);
- unlink_all_urbs(dev);
-
- return res;
-}
-
-static void rtl8150_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info)
-{
- rtl8150_t *dev = netdev_priv(netdev);
-
- strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
- strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
- usb_make_path(dev->udev, info->bus_info, sizeof info->bus_info);
-}
-
-static int rtl8150_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
-{
- rtl8150_t *dev = netdev_priv(netdev);
- short lpa, bmcr;
-
- ecmd->supported = (SUPPORTED_10baseT_Half |
- SUPPORTED_10baseT_Full |
- SUPPORTED_100baseT_Half |
- SUPPORTED_100baseT_Full |
- SUPPORTED_Autoneg |
- SUPPORTED_TP | SUPPORTED_MII);
- ecmd->port = PORT_TP;
- ecmd->transceiver = XCVR_INTERNAL;
- ecmd->phy_address = dev->phy;
- get_registers(dev, BMCR, 2, &bmcr);
- get_registers(dev, ANLP, 2, &lpa);
- if (bmcr & BMCR_ANENABLE) {
- ecmd->autoneg = AUTONEG_ENABLE;
- ecmd->speed = (lpa & (LPA_100HALF | LPA_100FULL)) ?
- SPEED_100 : SPEED_10;
- if (ecmd->speed == SPEED_100)
- ecmd->duplex = (lpa & LPA_100FULL) ?
- DUPLEX_FULL : DUPLEX_HALF;
- else
- ecmd->duplex = (lpa & LPA_10FULL) ?
- DUPLEX_FULL : DUPLEX_HALF;
- } else {
- ecmd->autoneg = AUTONEG_DISABLE;
- ecmd->speed = (bmcr & BMCR_SPEED100) ?
- SPEED_100 : SPEED_10;
- ecmd->duplex = (bmcr & BMCR_FULLDPLX) ?
- DUPLEX_FULL : DUPLEX_HALF;
- }
- return 0;
-}
-
-static struct ethtool_ops ops = {
- .get_drvinfo = rtl8150_get_drvinfo,
- .get_settings = rtl8150_get_settings,
- .get_link = ethtool_op_get_link
-};
-
-static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
-{
- rtl8150_t *dev = netdev_priv(netdev);
- u16 *data = (u16 *) & rq->ifr_ifru;
- int res = 0;
-
- switch (cmd) {
- case SIOCDEVPRIVATE:
- data[0] = dev->phy;
- case SIOCDEVPRIVATE + 1:
- read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]);
- break;
- case SIOCDEVPRIVATE + 2:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]);
- break;
- default:
- res = -EOPNOTSUPP;
- }
-
- return res;
-}
-
-static int rtl8150_probe(struct usb_interface *intf,
- const struct usb_device_id *id)
-{
- struct usb_device *udev = interface_to_usbdev(intf);
- rtl8150_t *dev;
- struct net_device *netdev;
-
- netdev = alloc_etherdev(sizeof(rtl8150_t));
- if (!netdev) {
- err("Out of memory");
- return -ENOMEM;
- }
-
- dev = netdev_priv(netdev);
- memset(dev, 0, sizeof(rtl8150_t));
-
- dev->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL);
- if (!dev->intr_buff) {
- free_netdev(netdev);
- return -ENOMEM;
- }
-
- tasklet_init(&dev->tl, rx_fixup, (unsigned long)dev);
- spin_lock_init(&dev->rx_pool_lock);
-
- dev->udev = udev;
- dev->netdev = netdev;
- SET_MODULE_OWNER(netdev);
- netdev->open = rtl8150_open;
- netdev->stop = rtl8150_close;
- netdev->do_ioctl = rtl8150_ioctl;
- netdev->watchdog_timeo = RTL8150_TX_TIMEOUT;
- netdev->tx_timeout = rtl8150_tx_timeout;
- netdev->hard_start_xmit = rtl8150_start_xmit;
- netdev->set_multicast_list = rtl8150_set_multicast;
- netdev->set_mac_address = rtl8150_set_mac_address;
- netdev->get_stats = rtl8150_netdev_stats;
- netdev->mtu = RTL8150_MTU;
- SET_ETHTOOL_OPS(netdev, &ops);
- dev->intr_interval = 100; /* 100ms */
-
- if (!alloc_all_urbs(dev)) {
- err("out of memory");
- goto out;
- }
- if (!rtl8150_reset(dev)) {
- err("couldn't reset the device");
- goto out1;
- }
- fill_skb_pool(dev);
- set_ethernet_addr(dev);
-
- usb_set_intfdata(intf, dev);
- SET_NETDEV_DEV(netdev, &intf->dev);
- if (register_netdev(netdev) != 0) {
- err("couldn't register the device");
- goto out2;
- }
-
- info("%s: rtl8150 is detected", netdev->name);
-
- return 0;
-
-out2:
- usb_set_intfdata(intf, NULL);
- free_skb_pool(dev);
-out1:
- free_all_urbs(dev);
-out:
- kfree(dev->intr_buff);
- free_netdev(netdev);
- return -EIO;
-}
-
-static void rtl8150_disconnect(struct usb_interface *intf)
-{
- rtl8150_t *dev = usb_get_intfdata(intf);
-
- usb_set_intfdata(intf, NULL);
- if (dev) {
- set_bit(RTL8150_UNPLUG, &dev->flags);
- tasklet_disable(&dev->tl);
- tasklet_kill(&dev->tl);
- unregister_netdev(dev->netdev);
- unlink_all_urbs(dev);
- free_all_urbs(dev);
- free_skb_pool(dev);
- if (dev->rx_skb)
- dev_kfree_skb(dev->rx_skb);
- kfree(dev->intr_buff);
- free_netdev(dev->netdev);
- }
-}
-
-static int __init usb_rtl8150_init(void)
-{
- info(DRIVER_DESC " " DRIVER_VERSION);
- return usb_register(&rtl8150_driver);
-}
-
-static void __exit usb_rtl8150_exit(void)
-{
- usb_deregister(&rtl8150_driver);
-}
-
-module_init(usb_rtl8150_init);
-module_exit(usb_rtl8150_exit);
-
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
projects / powerpc.git / blobdiff