Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 942 insertions, 0 deletions

diff --git a/drivers/usb/net/rtl8150.c b/drivers/usb/net/rtl8150.c
new file mode 100644
index 000000000000..8fb223385f2f
--- /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(&reg);
+        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");