| /* |
| * 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/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/devfs_fs_kernel.h> |
| #include <linux/usb.h> |
| #include <linux/init.h> |
| #include <asm/uaccess.h> |
| |
| /* Version Information */ |
| #define DRIVER_VERSION "v0.4.3 (2002/12/31)" |
| #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 IDR_EEPROM 0x1202 |
| |
| #define PHY_READ 0 |
| #define PHY_WRITE 0x20 |
| #define PHY_GO 0x40 |
| |
| #define RTL8150_REQT_READ 0xc0 |
| #define RTL8150_REQT_WRITE 0x40 |
| #define RTL8150_REQ_GET_REGS 0x05 |
| #define RTL8150_REQ_SET_REGS 0x05 |
| |
| #define RTL8150_MTU 1500 |
| #define RTL8150_MAX_MTU 1536 |
| |
| #define RTL8150_TX_TIMEOUT (HZ) |
| |
| /* rtl8150 flags */ |
| #define RTL8150_FLAG_HWCRC 0 |
| #define RX_REG_SET 1 |
| #define RTL8150_UNPLUG 2 |
| |
| /* Define these values to match your device */ |
| #define VENDOR_ID_REALTEK 0x0bda |
| #define VENDOR_ID_MELCO 0x0411 |
| |
| #define PRODUCT_ID_RTL8150 0x8150 |
| #define PRODUCT_ID_LUAKTX 0x0012 |
| |
| #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)}, |
| {} |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, rtl8150_table); |
| |
| struct rtl8150 { |
| unsigned int flags; |
| struct usb_device *udev; |
| struct usb_interface *interface; |
| struct semaphore sem; |
| struct net_device_stats stats; |
| struct net_device *netdev; |
| struct urb *rx_urb, *tx_urb, *intr_urb, *ctrl_urb; |
| struct usb_ctrlrequest dr; |
| int intr_interval; |
| u16 rx_creg; |
| u8 rx_buff[RTL8150_MAX_MTU]; |
| u8 tx_buff[RTL8150_MAX_MTU]; |
| u8 intr_buff[8]; |
| u8 phy; |
| }; |
| |
| typedef struct rtl8150 rtl8150_t; |
| |
| /* the global usb devfs handle */ |
| extern devfs_handle_t usb_devfs_handle; |
| unsigned long multicast_filter_limit = 32; |
| |
| static void rtl8150_disconnect(struct usb_device *dev, void *ptr); |
| static void *rtl8150_probe(struct usb_device *dev, unsigned int ifnum, |
| const struct usb_device_id *id); |
| |
| 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, |
| }; |
| |
| /* |
| ** |
| ** 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, HZ / 2); |
| } |
| |
| 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, HZ / 2); |
| } |
| |
| 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(2); |
| dev->ctrl_urb->transfer_buffer_length = 2; |
| FILL_CONTROL_URB(dev->ctrl_urb, dev->udev, |
| usb_sndctrlpipe(dev->udev, 0), (char *) &dev->dr, |
| &dev->rx_creg, 2, ctrl_callback, dev); |
| if ((ret = usb_submit_urb(dev->ctrl_urb))) |
| 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++ < HZ)); |
| |
| if (i < HZ) { |
| get_registers(dev, PHYDAT, 2, data); |
| *reg = le16_to_cpup((u16 *)data); |
| 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++ < HZ)); |
| |
| if (i < HZ) |
| 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; |
| int i; |
| |
| if (netif_running(netdev)) |
| return -EBUSY; |
| dev = netdev->priv; |
| if (dev == NULL) { |
| return -ENODEV; |
| } |
| memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| dbg("%s: Setting MAC address to ", netdev->name); |
| for (i = 0; i < 5; i++) |
| printk("%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) ? 0 : -1; |
| } |
| |
| static int alloc_all_urbs(rtl8150_t * dev) |
| { |
| dev->rx_urb = usb_alloc_urb(0); |
| if (!dev->rx_urb) |
| return 0; |
| dev->tx_urb = usb_alloc_urb(0); |
| if (!dev->tx_urb) { |
| usb_free_urb(dev->rx_urb); |
| return 0; |
| } |
| dev->intr_urb = usb_alloc_urb(0); |
| 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); |
| if (!dev->ctrl_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_unlink_urb(dev->rx_urb); |
| usb_unlink_urb(dev->tx_urb); |
| usb_unlink_urb(dev->intr_urb); |
| usb_unlink_urb(dev->ctrl_urb); |
| } |
| |
| static void read_bulk_callback(struct urb *urb) |
| { |
| rtl8150_t *dev; |
| int pkt_len, res; |
| struct sk_buff *skb; |
| struct net_device *netdev; |
| u16 rx_stat; |
| |
| dev = urb->context; |
| if (!dev) { |
| warn("!dev"); |
| return; |
| } |
| netdev = dev->netdev; |
| if (!netif_device_present(netdev)) { |
| warn("netdev is not present"); |
| return; |
| } |
| switch (urb->status) { |
| case 0: |
| break; |
| case -ENOENT: |
| return; |
| case -ETIMEDOUT: |
| warn("need a device reset?.."); |
| goto goon; |
| default: |
| warn("Rx status %d", urb->status); |
| goto goon; |
| } |
| |
| pkt_len = urb->actual_length - 4; |
| rx_stat = le16_to_cpu(*(u16 *) (dev->rx_buff + pkt_len)); |
| |
| if (!(skb = dev_alloc_skb(pkt_len + 2))) |
| goto goon; |
| skb->dev = netdev; |
| skb_reserve(skb, 2); |
| eth_copy_and_sum(skb, dev->rx_buff, pkt_len, 0); |
| skb_put(skb, pkt_len); |
| skb->protocol = eth_type_trans(skb, netdev); |
| netif_rx(skb); |
| dev->stats.rx_packets++; |
| dev->stats.rx_bytes += pkt_len; |
| goon: |
| FILL_BULK_URB(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
| dev->rx_buff, RTL8150_MAX_MTU, read_bulk_callback, dev); |
| if ((res = usb_submit_urb(dev->rx_urb))) |
| warn("%s: Rx urb submission failed %d", netdev->name, res); |
| } |
| |
| static void write_bulk_callback(struct urb *urb) |
| { |
| rtl8150_t *dev; |
| |
| dev = urb->context; |
| if (!dev) |
| return; |
| 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); |
| } |
| |
| void intr_callback(struct urb *urb) |
| { |
| rtl8150_t *dev; |
| |
| dev = urb->context; |
| if (!dev) |
| return; |
| switch (urb->status) { |
| case 0: |
| break; |
| case -ENOENT: |
| return; |
| default: |
| info("%s: intr status %d", dev->netdev->name, urb->status); |
| } |
| } |
| |
| /* |
| ** |
| ** network related part of the code |
| ** |
| */ |
| |
| static int enable_net_traffic(rtl8150_t * dev) |
| { |
| u8 cr, tcr, rcr, msr; |
| |
| if (rtl8150_reset(dev)) { |
| warn("%s - device reset failed", __FUNCTION__); |
| } |
| rcr = 0x9e; /* bit7=1 attach Rx info at the end */ |
| dev->rx_creg = cpu_to_le16(rcr); |
| tcr = 0xd8; |
| cr = 0x0c; |
| 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 *) dev->priv)->stats; |
| } |
| |
| static void rtl8150_tx_timeout(struct net_device *netdev) |
| { |
| rtl8150_t *dev; |
| |
| dev = netdev->priv; |
| if (!dev) |
| return; |
| warn("%s: Tx timeout.", netdev->name); |
| dev->tx_urb->transfer_flags |= USB_ASYNC_UNLINK; |
| usb_unlink_urb(dev->tx_urb); |
| dev->stats.tx_errors++; |
| } |
| |
| static void rtl8150_set_multicast(struct net_device *netdev) |
| { |
| rtl8150_t *dev; |
| |
| dev = netdev->priv; |
| 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; |
| int count, res; |
| |
| netif_stop_queue(netdev); |
| dev = netdev->priv; |
| count = (skb->len < 60) ? 60 : skb->len; |
| count = (count & 0x3f) ? count : count + 1; |
| memcpy(dev->tx_buff, skb->data, skb->len); |
| FILL_BULK_URB(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2), |
| dev->tx_buff, count, write_bulk_callback, dev); |
| dev->tx_urb->transfer_buffer_length = count; |
| |
| if ((res = usb_submit_urb(dev->tx_urb))) { |
| 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; |
| } |
| dev_kfree_skb(skb); |
| |
| return 0; |
| } |
| |
| static int rtl8150_open(struct net_device *netdev) |
| { |
| rtl8150_t *dev; |
| int res; |
| |
| dev = netdev->priv; |
| if (dev == NULL) { |
| return -ENODEV; |
| } |
| |
| down(&dev->sem); |
| |
| set_registers(dev, IDR, 6, netdev->dev_addr); |
| |
| FILL_BULK_URB(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
| dev->rx_buff, RTL8150_MAX_MTU, read_bulk_callback, dev); |
| if ((res = usb_submit_urb(dev->rx_urb))) |
| warn("%s: rx_urb submit failed: %d", __FUNCTION__, res); |
| FILL_INT_URB(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3), |
| dev->intr_buff, sizeof(dev->intr_buff), intr_callback, |
| dev, dev->intr_interval); |
| if ((res = usb_submit_urb(dev->intr_urb))) |
| warn("%s: intr_urb submit failed: %d", __FUNCTION__, res); |
| netif_start_queue(netdev); |
| enable_net_traffic(dev); |
| up(&dev->sem); |
| |
| return res; |
| } |
| |
| static int rtl8150_close(struct net_device *netdev) |
| { |
| rtl8150_t *dev; |
| int res = 0; |
| |
| dev = netdev->priv; |
| if (!dev) |
| return -ENODEV; |
| |
| down(&dev->sem); |
| if (!test_bit(RTL8150_UNPLUG, &dev->flags)) |
| disable_net_traffic(dev); |
| unlink_all_urbs(dev); |
| netif_stop_queue(netdev); |
| up(&dev->sem); |
| |
| return res; |
| } |
| |
| static int rtl8150_ethtool_ioctl(struct net_device *netdev, void *uaddr) |
| { |
| rtl8150_t *dev; |
| int cmd; |
| char tmp[128]; |
| |
| dev = netdev->priv; |
| if (get_user(cmd, (int *) uaddr)) |
| return -EFAULT; |
| |
| switch (cmd) { |
| case ETHTOOL_GDRVINFO:{ |
| struct ethtool_drvinfo info = { ETHTOOL_GDRVINFO }; |
| |
| strncpy(info.driver, driver_name, ETHTOOL_BUSINFO_LEN); |
| strncpy(info.version, DRIVER_VERSION, |
| ETHTOOL_BUSINFO_LEN); |
| sprintf(tmp, "usb%d:%d", dev->udev->bus->busnum, |
| dev->udev->devnum); |
| strncpy(info.bus_info, tmp, ETHTOOL_BUSINFO_LEN); |
| if (copy_to_user(uaddr, &info, sizeof(info))) |
| return -EFAULT; |
| return 0; |
| } |
| case ETHTOOL_GSET:{ |
| struct ethtool_cmd ecmd; |
| short lpa, bmcr; |
| |
| if (copy_from_user(&ecmd, uaddr, sizeof(ecmd))) |
| return -EFAULT; |
| 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; |
| } |
| if (copy_to_user(uaddr, &ecmd, sizeof(ecmd))) |
| return -EFAULT; |
| return 0; |
| } |
| case ETHTOOL_SSET: |
| return -ENOTSUPP; |
| case ETHTOOL_GLINK:{ |
| struct ethtool_value edata = { ETHTOOL_GLINK }; |
| |
| edata.data = netif_carrier_ok(netdev); |
| if (copy_to_user(uaddr, &edata, sizeof(edata))) |
| return -EFAULT; |
| return 0; |
| } |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) |
| { |
| rtl8150_t *dev; |
| u16 *data; |
| int res; |
| |
| dev = netdev->priv; |
| data = (u16 *) & rq->ifr_data; |
| res = 0; |
| |
| down(&dev->sem); |
| switch (cmd) { |
| case SIOCETHTOOL: |
| res = rtl8150_ethtool_ioctl(netdev, rq->ifr_data); |
| break; |
| 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)) { |
| up(&dev->sem); |
| return -EPERM; |
| } |
| write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]); |
| break; |
| default: |
| res = -EOPNOTSUPP; |
| } |
| up(&dev->sem); |
| |
| return res; |
| } |
| |
| static void *rtl8150_probe(struct usb_device *udev, unsigned int ifnum, |
| const struct usb_device_id *id) |
| { |
| rtl8150_t *dev; |
| struct net_device *netdev; |
| |
| udev->config[0].bConfigurationValue = 1; |
| if (usb_set_configuration(udev, udev->config[0].bConfigurationValue)) { |
| err("usb_set_configuration() failed"); |
| return NULL; |
| } |
| dev = kmalloc(sizeof(rtl8150_t), GFP_KERNEL); |
| if (!dev) { |
| err("Out of memory"); |
| goto exit; |
| } else |
| memset(dev, 0, sizeof(rtl8150_t)); |
| |
| netdev = init_etherdev(NULL, 0); |
| if (!netdev) { |
| kfree(dev); |
| err("Oh boy, out of memory again?!?"); |
| dev = NULL; |
| goto exit; |
| } |
| |
| init_MUTEX(&dev->sem); |
| dev->udev = udev; |
| dev->netdev = netdev; |
| SET_MODULE_OWNER(netdev); |
| netdev->priv = dev; |
| 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; |
| dev->intr_interval = 100; /* 100ms */ |
| |
| if (rtl8150_reset(dev) || !alloc_all_urbs(dev)) { |
| err("couldn't reset the device"); |
| free_all_urbs(dev); |
| unregister_netdev(dev->netdev); |
| kfree(netdev); |
| kfree(dev); |
| dev = NULL; |
| goto exit; |
| } |
| |
| set_ethernet_addr(dev); |
| /* let's not be very nasty :-) */ |
| info("%s: rtl8150 is detected", netdev->name); |
| exit: |
| return dev; |
| } |
| |
| static void rtl8150_disconnect(struct usb_device *udev, void *ptr) |
| { |
| rtl8150_t *dev; |
| |
| dev = ptr; |
| set_bit(RTL8150_UNPLUG, &dev->flags); |
| unregister_netdev(dev->netdev); |
| unlink_all_urbs(dev); |
| free_all_urbs(dev); |
| kfree(dev->netdev); |
| kfree(dev); |
| dev->netdev = NULL; |
| dev = NULL; |
| } |
| |
| 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"); |