Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/usb/net/rtl8150.c b/drivers/usb/net/rtl8150.c
new file mode 100644
index 0000000..8fb2233
--- /dev/null
+++ b/drivers/usb/net/rtl8150.c
@@ -0,0 +1,942 @@
+/*
+ * 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/config.h>
+#include <linux/sched.h>
+#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 PRODUCT_ID_RTL8150 0x8150
+#define PRODUCT_ID_LUAKTX 0x0012
+#define PRODUCT_ID_LCS8138TX 0x401a
+#define PRODUCT_ID_SP128AR 0x0003
+
+#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)},
+ {}
+};
+
+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 unsigned long multicast_filter_limit = 32;
+
+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 const char driver_name [] = "rtl8150";
+
+static struct usb_driver rtl8150_driver = {
+ .owner = THIS_MODULE,
+ .name = driver_name,
+ .probe = rtl8150_probe,
+ .disconnect = rtl8150_disconnect,
+ .id_table = rtl8150_table,
+};
+
+/*
+**
+** 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, struct pt_regs *regs)
+{
+ 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)))
+ 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) = cpu_to_le16p(®);
+ 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, struct pt_regs *regs)
+{
+ rtl8150_t *dev;
+ unsigned pkt_len, res;
+ struct sk_buff *skb;
+ struct net_device *netdev;
+ u16 rx_stat;
+
+ 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 -ETIMEDOUT:
+ 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);
+ if (usb_submit_urb(dev->rx_urb, GFP_ATOMIC)) {
+ 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;
+
+ 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:
+ if (usb_submit_urb(dev->rx_urb, GFP_ATOMIC)) {
+ 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, struct pt_regs *regs)
+{
+ 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, struct pt_regs *regs)
+{
+ 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, SLAB_ATOMIC);
+ if (status)
+ err ("can't resubmit intr, %s-%s/input0, status %d",
+ dev->udev->bus->bus_name,
+ dev->udev->devpath, status);
+}
+
+
+/*
+**
+** 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->dev = dev->netdev;
+ 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);
+ dev->tx_urb->transfer_flags |= URB_ASYNC_UNLINK;
+ 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 > multicast_filter_limit) ||
+ (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))) {
+ 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)))
+ warn("%s: rx_urb submit failed: %d", __FUNCTION__, 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)))
+ warn("%s: intr_urb submit failed: %d", __FUNCTION__, res);
+ netif_start_queue(netdev);
+ enable_net_traffic(dev);
+ set_carrier(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);
+ info("%s: rtl8150 is detected", netdev->name);
+
+ usb_set_intfdata(intf, dev);
+ SET_NETDEV_DEV(netdev, &intf->dev);
+ if (register_netdev(netdev) != 0) {
+ err("couldn't register the device");
+ goto out2;
+ }
+ 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);
+ 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");