Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2002 Petko Manolov (petkan@users.sourceforge.net) |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * version 2 as published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | #include <linux/sched.h> |
| 10 | #include <linux/init.h> |
| 11 | #include <linux/signal.h> |
| 12 | #include <linux/slab.h> |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/netdevice.h> |
| 15 | #include <linux/etherdevice.h> |
| 16 | #include <linux/mii.h> |
| 17 | #include <linux/ethtool.h> |
| 18 | #include <linux/usb.h> |
| 19 | #include <asm/uaccess.h> |
| 20 | |
| 21 | /* Version Information */ |
| 22 | #define DRIVER_VERSION "v0.6.2 (2004/08/27)" |
| 23 | #define DRIVER_AUTHOR "Petko Manolov <petkan@users.sourceforge.net>" |
| 24 | #define DRIVER_DESC "rtl8150 based usb-ethernet driver" |
| 25 | |
| 26 | #define IDR 0x0120 |
| 27 | #define MAR 0x0126 |
| 28 | #define CR 0x012e |
| 29 | #define TCR 0x012f |
| 30 | #define RCR 0x0130 |
| 31 | #define TSR 0x0132 |
| 32 | #define RSR 0x0133 |
| 33 | #define CON0 0x0135 |
| 34 | #define CON1 0x0136 |
| 35 | #define MSR 0x0137 |
| 36 | #define PHYADD 0x0138 |
| 37 | #define PHYDAT 0x0139 |
| 38 | #define PHYCNT 0x013b |
| 39 | #define GPPC 0x013d |
| 40 | #define BMCR 0x0140 |
| 41 | #define BMSR 0x0142 |
| 42 | #define ANAR 0x0144 |
| 43 | #define ANLP 0x0146 |
| 44 | #define AER 0x0148 |
| 45 | #define CSCR 0x014C /* This one has the link status */ |
| 46 | #define CSCR_LINK_STATUS (1 << 3) |
| 47 | |
| 48 | #define IDR_EEPROM 0x1202 |
| 49 | |
| 50 | #define PHY_READ 0 |
| 51 | #define PHY_WRITE 0x20 |
| 52 | #define PHY_GO 0x40 |
| 53 | |
| 54 | #define MII_TIMEOUT 10 |
| 55 | #define INTBUFSIZE 8 |
| 56 | |
| 57 | #define RTL8150_REQT_READ 0xc0 |
| 58 | #define RTL8150_REQT_WRITE 0x40 |
| 59 | #define RTL8150_REQ_GET_REGS 0x05 |
| 60 | #define RTL8150_REQ_SET_REGS 0x05 |
| 61 | |
| 62 | |
| 63 | /* Transmit status register errors */ |
| 64 | #define TSR_ECOL (1<<5) |
| 65 | #define TSR_LCOL (1<<4) |
| 66 | #define TSR_LOSS_CRS (1<<3) |
| 67 | #define TSR_JBR (1<<2) |
| 68 | #define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR) |
| 69 | /* Receive status register errors */ |
| 70 | #define RSR_CRC (1<<2) |
| 71 | #define RSR_FAE (1<<1) |
| 72 | #define RSR_ERRORS (RSR_CRC | RSR_FAE) |
| 73 | |
| 74 | /* Media status register definitions */ |
| 75 | #define MSR_DUPLEX (1<<4) |
| 76 | #define MSR_SPEED (1<<3) |
| 77 | #define MSR_LINK (1<<2) |
| 78 | |
| 79 | /* Interrupt pipe data */ |
| 80 | #define INT_TSR 0x00 |
| 81 | #define INT_RSR 0x01 |
| 82 | #define INT_MSR 0x02 |
| 83 | #define INT_WAKSR 0x03 |
| 84 | #define INT_TXOK_CNT 0x04 |
| 85 | #define INT_RXLOST_CNT 0x05 |
| 86 | #define INT_CRERR_CNT 0x06 |
| 87 | #define INT_COL_CNT 0x07 |
| 88 | |
| 89 | /* Transmit status register errors */ |
| 90 | #define TSR_ECOL (1<<5) |
| 91 | #define TSR_LCOL (1<<4) |
| 92 | #define TSR_LOSS_CRS (1<<3) |
| 93 | #define TSR_JBR (1<<2) |
| 94 | #define TSR_ERRORS (TSR_ECOL | TSR_LCOL | TSR_LOSS_CRS | TSR_JBR) |
| 95 | /* Receive status register errors */ |
| 96 | #define RSR_CRC (1<<2) |
| 97 | #define RSR_FAE (1<<1) |
| 98 | #define RSR_ERRORS (RSR_CRC | RSR_FAE) |
| 99 | |
| 100 | /* Media status register definitions */ |
| 101 | #define MSR_DUPLEX (1<<4) |
| 102 | #define MSR_SPEED (1<<3) |
| 103 | #define MSR_LINK (1<<2) |
| 104 | |
| 105 | /* Interrupt pipe data */ |
| 106 | #define INT_TSR 0x00 |
| 107 | #define INT_RSR 0x01 |
| 108 | #define INT_MSR 0x02 |
| 109 | #define INT_WAKSR 0x03 |
| 110 | #define INT_TXOK_CNT 0x04 |
| 111 | #define INT_RXLOST_CNT 0x05 |
| 112 | #define INT_CRERR_CNT 0x06 |
| 113 | #define INT_COL_CNT 0x07 |
| 114 | |
| 115 | |
| 116 | #define RTL8150_MTU 1540 |
| 117 | #define RTL8150_TX_TIMEOUT (HZ) |
| 118 | #define RX_SKB_POOL_SIZE 4 |
| 119 | |
| 120 | /* rtl8150 flags */ |
| 121 | #define RTL8150_HW_CRC 0 |
| 122 | #define RX_REG_SET 1 |
| 123 | #define RTL8150_UNPLUG 2 |
| 124 | #define RX_URB_FAIL 3 |
| 125 | |
| 126 | /* Define these values to match your device */ |
Petko Manolov | 5859271 | 2006-12-04 14:27:36 +0200 | [diff] [blame] | 127 | #define VENDOR_ID_REALTEK 0x0bda |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | #define VENDOR_ID_MELCO 0x0411 |
Petko Manolov | 5859271 | 2006-12-04 14:27:36 +0200 | [diff] [blame] | 129 | #define VENDOR_ID_MICRONET 0x3980 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | #define VENDOR_ID_LONGSHINE 0x07b8 |
Petko Manolov | 5859271 | 2006-12-04 14:27:36 +0200 | [diff] [blame] | 131 | #define VENDOR_ID_OQO 0x1557 |
Dan Streetman | b6c2799 | 2006-07-05 19:17:27 -0400 | [diff] [blame] | 132 | #define VENDOR_ID_ZYXEL 0x0586 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | |
| 134 | #define PRODUCT_ID_RTL8150 0x8150 |
| 135 | #define PRODUCT_ID_LUAKTX 0x0012 |
| 136 | #define PRODUCT_ID_LCS8138TX 0x401a |
| 137 | #define PRODUCT_ID_SP128AR 0x0003 |
Dan Streetman | b6c2799 | 2006-07-05 19:17:27 -0400 | [diff] [blame] | 138 | #define PRODUCT_ID_PRESTIGE 0x401a |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
| 140 | #undef EEPROM_WRITE |
| 141 | |
| 142 | /* table of devices that work with this driver */ |
| 143 | static struct usb_device_id rtl8150_table[] = { |
| 144 | {USB_DEVICE(VENDOR_ID_REALTEK, PRODUCT_ID_RTL8150)}, |
| 145 | {USB_DEVICE(VENDOR_ID_MELCO, PRODUCT_ID_LUAKTX)}, |
| 146 | {USB_DEVICE(VENDOR_ID_MICRONET, PRODUCT_ID_SP128AR)}, |
| 147 | {USB_DEVICE(VENDOR_ID_LONGSHINE, PRODUCT_ID_LCS8138TX)}, |
Petko Manolov | 5859271 | 2006-12-04 14:27:36 +0200 | [diff] [blame] | 148 | {USB_DEVICE(VENDOR_ID_OQO, PRODUCT_ID_RTL8150)}, |
Dan Streetman | b6c2799 | 2006-07-05 19:17:27 -0400 | [diff] [blame] | 149 | {USB_DEVICE(VENDOR_ID_ZYXEL, PRODUCT_ID_PRESTIGE)}, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | {} |
| 151 | }; |
| 152 | |
| 153 | MODULE_DEVICE_TABLE(usb, rtl8150_table); |
| 154 | |
| 155 | struct rtl8150 { |
| 156 | unsigned long flags; |
| 157 | struct usb_device *udev; |
| 158 | struct tasklet_struct tl; |
| 159 | struct net_device_stats stats; |
| 160 | struct net_device *netdev; |
| 161 | struct urb *rx_urb, *tx_urb, *intr_urb, *ctrl_urb; |
| 162 | struct sk_buff *tx_skb, *rx_skb; |
| 163 | struct sk_buff *rx_skb_pool[RX_SKB_POOL_SIZE]; |
| 164 | spinlock_t rx_pool_lock; |
| 165 | struct usb_ctrlrequest dr; |
| 166 | int intr_interval; |
| 167 | __le16 rx_creg; |
| 168 | u8 *intr_buff; |
| 169 | u8 phy; |
| 170 | }; |
| 171 | |
| 172 | typedef struct rtl8150 rtl8150_t; |
| 173 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | static void fill_skb_pool(rtl8150_t *); |
| 175 | static void free_skb_pool(rtl8150_t *); |
| 176 | static inline struct sk_buff *pull_skb(rtl8150_t *); |
| 177 | static void rtl8150_disconnect(struct usb_interface *intf); |
| 178 | static int rtl8150_probe(struct usb_interface *intf, |
| 179 | const struct usb_device_id *id); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 180 | static int rtl8150_suspend(struct usb_interface *intf, pm_message_t message); |
| 181 | static int rtl8150_resume(struct usb_interface *intf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | |
| 183 | static const char driver_name [] = "rtl8150"; |
| 184 | |
| 185 | static struct usb_driver rtl8150_driver = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | .name = driver_name, |
| 187 | .probe = rtl8150_probe, |
| 188 | .disconnect = rtl8150_disconnect, |
| 189 | .id_table = rtl8150_table, |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 190 | .suspend = rtl8150_suspend, |
| 191 | .resume = rtl8150_resume |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | }; |
| 193 | |
| 194 | /* |
| 195 | ** |
| 196 | ** device related part of the code |
| 197 | ** |
| 198 | */ |
| 199 | static int get_registers(rtl8150_t * dev, u16 indx, u16 size, void *data) |
| 200 | { |
| 201 | return usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), |
| 202 | RTL8150_REQ_GET_REGS, RTL8150_REQT_READ, |
| 203 | indx, 0, data, size, 500); |
| 204 | } |
| 205 | |
| 206 | static int set_registers(rtl8150_t * dev, u16 indx, u16 size, void *data) |
| 207 | { |
| 208 | return usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), |
| 209 | RTL8150_REQ_SET_REGS, RTL8150_REQT_WRITE, |
| 210 | indx, 0, data, size, 500); |
| 211 | } |
| 212 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 213 | static void ctrl_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | { |
| 215 | rtl8150_t *dev; |
| 216 | |
| 217 | switch (urb->status) { |
| 218 | case 0: |
| 219 | break; |
| 220 | case -EINPROGRESS: |
| 221 | break; |
| 222 | case -ENOENT: |
| 223 | break; |
| 224 | default: |
| 225 | warn("ctrl urb status %d", urb->status); |
| 226 | } |
| 227 | dev = urb->context; |
| 228 | clear_bit(RX_REG_SET, &dev->flags); |
| 229 | } |
| 230 | |
| 231 | static int async_set_registers(rtl8150_t * dev, u16 indx, u16 size) |
| 232 | { |
| 233 | int ret; |
| 234 | |
| 235 | if (test_bit(RX_REG_SET, &dev->flags)) |
| 236 | return -EAGAIN; |
| 237 | |
| 238 | dev->dr.bRequestType = RTL8150_REQT_WRITE; |
| 239 | dev->dr.bRequest = RTL8150_REQ_SET_REGS; |
| 240 | dev->dr.wValue = cpu_to_le16(indx); |
| 241 | dev->dr.wIndex = 0; |
| 242 | dev->dr.wLength = cpu_to_le16(size); |
| 243 | dev->ctrl_urb->transfer_buffer_length = size; |
| 244 | usb_fill_control_urb(dev->ctrl_urb, dev->udev, |
| 245 | usb_sndctrlpipe(dev->udev, 0), (char *) &dev->dr, |
| 246 | &dev->rx_creg, size, ctrl_callback, dev); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 247 | if ((ret = usb_submit_urb(dev->ctrl_urb, GFP_ATOMIC))) { |
| 248 | if (ret == -ENODEV) |
| 249 | netif_device_detach(dev->netdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | err("control request submission failed: %d", ret); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 251 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | set_bit(RX_REG_SET, &dev->flags); |
| 253 | |
| 254 | return ret; |
| 255 | } |
| 256 | |
| 257 | static int read_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 * reg) |
| 258 | { |
| 259 | int i; |
| 260 | u8 data[3], tmp; |
| 261 | |
| 262 | data[0] = phy; |
| 263 | data[1] = data[2] = 0; |
| 264 | tmp = indx | PHY_READ | PHY_GO; |
| 265 | i = 0; |
| 266 | |
| 267 | set_registers(dev, PHYADD, sizeof(data), data); |
| 268 | set_registers(dev, PHYCNT, 1, &tmp); |
| 269 | do { |
| 270 | get_registers(dev, PHYCNT, 1, data); |
| 271 | } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); |
| 272 | |
| 273 | if (i < MII_TIMEOUT) { |
| 274 | get_registers(dev, PHYDAT, 2, data); |
| 275 | *reg = data[0] | (data[1] << 8); |
| 276 | return 0; |
| 277 | } else |
| 278 | return 1; |
| 279 | } |
| 280 | |
| 281 | static int write_mii_word(rtl8150_t * dev, u8 phy, __u8 indx, u16 reg) |
| 282 | { |
| 283 | int i; |
| 284 | u8 data[3], tmp; |
| 285 | |
| 286 | data[0] = phy; |
Al Viro | 886ae1f | 2007-02-04 03:02:17 +0000 | [diff] [blame] | 287 | data[1] = reg & 0xff; |
| 288 | data[2] = (reg >> 8) & 0xff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | tmp = indx | PHY_WRITE | PHY_GO; |
| 290 | i = 0; |
| 291 | |
| 292 | set_registers(dev, PHYADD, sizeof(data), data); |
| 293 | set_registers(dev, PHYCNT, 1, &tmp); |
| 294 | do { |
| 295 | get_registers(dev, PHYCNT, 1, data); |
| 296 | } while ((data[0] & PHY_GO) && (i++ < MII_TIMEOUT)); |
| 297 | |
| 298 | if (i < MII_TIMEOUT) |
| 299 | return 0; |
| 300 | else |
| 301 | return 1; |
| 302 | } |
| 303 | |
| 304 | static inline void set_ethernet_addr(rtl8150_t * dev) |
| 305 | { |
| 306 | u8 node_id[6]; |
| 307 | |
| 308 | get_registers(dev, IDR, sizeof(node_id), node_id); |
| 309 | memcpy(dev->netdev->dev_addr, node_id, sizeof(node_id)); |
| 310 | } |
| 311 | |
| 312 | static int rtl8150_set_mac_address(struct net_device *netdev, void *p) |
| 313 | { |
| 314 | struct sockaddr *addr = p; |
| 315 | rtl8150_t *dev = netdev_priv(netdev); |
| 316 | int i; |
| 317 | |
| 318 | if (netif_running(netdev)) |
| 319 | return -EBUSY; |
| 320 | |
| 321 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| 322 | dbg("%s: Setting MAC address to ", netdev->name); |
| 323 | for (i = 0; i < 5; i++) |
| 324 | dbg("%02X:", netdev->dev_addr[i]); |
| 325 | dbg("%02X\n", netdev->dev_addr[i]); |
| 326 | /* Set the IDR registers. */ |
| 327 | set_registers(dev, IDR, sizeof(netdev->dev_addr), netdev->dev_addr); |
| 328 | #ifdef EEPROM_WRITE |
| 329 | { |
| 330 | u8 cr; |
| 331 | /* Get the CR contents. */ |
| 332 | get_registers(dev, CR, 1, &cr); |
| 333 | /* Set the WEPROM bit (eeprom write enable). */ |
| 334 | cr |= 0x20; |
| 335 | set_registers(dev, CR, 1, &cr); |
| 336 | /* Write the MAC address into eeprom. Eeprom writes must be word-sized, |
| 337 | so we need to split them up. */ |
| 338 | for (i = 0; i * 2 < netdev->addr_len; i++) { |
| 339 | set_registers(dev, IDR_EEPROM + (i * 2), 2, |
| 340 | netdev->dev_addr + (i * 2)); |
| 341 | } |
| 342 | /* Clear the WEPROM bit (preventing accidental eeprom writes). */ |
| 343 | cr &= 0xdf; |
| 344 | set_registers(dev, CR, 1, &cr); |
| 345 | } |
| 346 | #endif |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | static int rtl8150_reset(rtl8150_t * dev) |
| 351 | { |
| 352 | u8 data = 0x10; |
| 353 | int i = HZ; |
| 354 | |
| 355 | set_registers(dev, CR, 1, &data); |
| 356 | do { |
| 357 | get_registers(dev, CR, 1, &data); |
| 358 | } while ((data & 0x10) && --i); |
| 359 | |
| 360 | return (i > 0) ? 1 : 0; |
| 361 | } |
| 362 | |
| 363 | static int alloc_all_urbs(rtl8150_t * dev) |
| 364 | { |
| 365 | dev->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 366 | if (!dev->rx_urb) |
| 367 | return 0; |
| 368 | dev->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 369 | if (!dev->tx_urb) { |
| 370 | usb_free_urb(dev->rx_urb); |
| 371 | return 0; |
| 372 | } |
| 373 | dev->intr_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 374 | if (!dev->intr_urb) { |
| 375 | usb_free_urb(dev->rx_urb); |
| 376 | usb_free_urb(dev->tx_urb); |
| 377 | return 0; |
| 378 | } |
| 379 | dev->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 380 | if (!dev->intr_urb) { |
| 381 | usb_free_urb(dev->rx_urb); |
| 382 | usb_free_urb(dev->tx_urb); |
| 383 | usb_free_urb(dev->intr_urb); |
| 384 | return 0; |
| 385 | } |
| 386 | |
| 387 | return 1; |
| 388 | } |
| 389 | |
| 390 | static void free_all_urbs(rtl8150_t * dev) |
| 391 | { |
| 392 | usb_free_urb(dev->rx_urb); |
| 393 | usb_free_urb(dev->tx_urb); |
| 394 | usb_free_urb(dev->intr_urb); |
| 395 | usb_free_urb(dev->ctrl_urb); |
| 396 | } |
| 397 | |
| 398 | static void unlink_all_urbs(rtl8150_t * dev) |
| 399 | { |
| 400 | usb_kill_urb(dev->rx_urb); |
| 401 | usb_kill_urb(dev->tx_urb); |
| 402 | usb_kill_urb(dev->intr_urb); |
| 403 | usb_kill_urb(dev->ctrl_urb); |
| 404 | } |
| 405 | |
| 406 | static inline struct sk_buff *pull_skb(rtl8150_t *dev) |
| 407 | { |
| 408 | struct sk_buff *skb; |
| 409 | int i; |
| 410 | |
| 411 | for (i = 0; i < RX_SKB_POOL_SIZE; i++) { |
| 412 | if (dev->rx_skb_pool[i]) { |
| 413 | skb = dev->rx_skb_pool[i]; |
| 414 | dev->rx_skb_pool[i] = NULL; |
| 415 | return skb; |
| 416 | } |
| 417 | } |
| 418 | return NULL; |
| 419 | } |
| 420 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 421 | static void read_bulk_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | { |
| 423 | rtl8150_t *dev; |
| 424 | unsigned pkt_len, res; |
| 425 | struct sk_buff *skb; |
| 426 | struct net_device *netdev; |
| 427 | u16 rx_stat; |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 428 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | |
| 430 | dev = urb->context; |
| 431 | if (!dev) |
| 432 | return; |
| 433 | if (test_bit(RTL8150_UNPLUG, &dev->flags)) |
| 434 | return; |
| 435 | netdev = dev->netdev; |
| 436 | if (!netif_device_present(netdev)) |
| 437 | return; |
| 438 | |
| 439 | switch (urb->status) { |
| 440 | case 0: |
| 441 | break; |
| 442 | case -ENOENT: |
| 443 | return; /* the urb is in unlink state */ |
Pete Zaitcev | 38e2bfc | 2006-09-18 22:49:02 -0700 | [diff] [blame] | 444 | case -ETIME: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 445 | warn("may be reset is needed?.."); |
| 446 | goto goon; |
| 447 | default: |
| 448 | warn("Rx status %d", urb->status); |
| 449 | goto goon; |
| 450 | } |
| 451 | |
| 452 | if (!dev->rx_skb) |
| 453 | goto resched; |
| 454 | /* protect against short packets (tell me why we got some?!?) */ |
| 455 | if (urb->actual_length < 4) |
| 456 | goto goon; |
| 457 | |
| 458 | res = urb->actual_length; |
| 459 | rx_stat = le16_to_cpu(*(__le16 *)(urb->transfer_buffer + res - 4)); |
| 460 | pkt_len = res - 4; |
| 461 | |
| 462 | skb_put(dev->rx_skb, pkt_len); |
| 463 | dev->rx_skb->protocol = eth_type_trans(dev->rx_skb, netdev); |
| 464 | netif_rx(dev->rx_skb); |
| 465 | dev->stats.rx_packets++; |
| 466 | dev->stats.rx_bytes += pkt_len; |
| 467 | |
| 468 | spin_lock(&dev->rx_pool_lock); |
| 469 | skb = pull_skb(dev); |
| 470 | spin_unlock(&dev->rx_pool_lock); |
| 471 | if (!skb) |
| 472 | goto resched; |
| 473 | |
| 474 | dev->rx_skb = skb; |
| 475 | goon: |
| 476 | usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
| 477 | dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 478 | status = usb_submit_urb(dev->rx_urb, GFP_ATOMIC); |
| 479 | if (status == -ENODEV) |
| 480 | netif_device_detach(dev->netdev); |
| 481 | else if (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | set_bit(RX_URB_FAIL, &dev->flags); |
| 483 | goto resched; |
| 484 | } else { |
| 485 | clear_bit(RX_URB_FAIL, &dev->flags); |
| 486 | } |
| 487 | |
| 488 | return; |
| 489 | resched: |
| 490 | tasklet_schedule(&dev->tl); |
| 491 | } |
| 492 | |
| 493 | static void rx_fixup(unsigned long data) |
| 494 | { |
| 495 | rtl8150_t *dev; |
| 496 | struct sk_buff *skb; |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 497 | int status; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 498 | |
| 499 | dev = (rtl8150_t *)data; |
| 500 | |
| 501 | spin_lock_irq(&dev->rx_pool_lock); |
| 502 | fill_skb_pool(dev); |
| 503 | spin_unlock_irq(&dev->rx_pool_lock); |
| 504 | if (test_bit(RX_URB_FAIL, &dev->flags)) |
| 505 | if (dev->rx_skb) |
| 506 | goto try_again; |
| 507 | spin_lock_irq(&dev->rx_pool_lock); |
| 508 | skb = pull_skb(dev); |
| 509 | spin_unlock_irq(&dev->rx_pool_lock); |
| 510 | if (skb == NULL) |
| 511 | goto tlsched; |
| 512 | dev->rx_skb = skb; |
| 513 | usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
| 514 | dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); |
| 515 | try_again: |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 516 | status = usb_submit_urb(dev->rx_urb, GFP_ATOMIC); |
| 517 | if (status == -ENODEV) { |
| 518 | netif_device_detach(dev->netdev); |
| 519 | } else if (status) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | set_bit(RX_URB_FAIL, &dev->flags); |
| 521 | goto tlsched; |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 522 | } else { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | clear_bit(RX_URB_FAIL, &dev->flags); |
| 524 | } |
| 525 | |
| 526 | return; |
| 527 | tlsched: |
| 528 | tasklet_schedule(&dev->tl); |
| 529 | } |
| 530 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 531 | static void write_bulk_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 532 | { |
| 533 | rtl8150_t *dev; |
| 534 | |
| 535 | dev = urb->context; |
| 536 | if (!dev) |
| 537 | return; |
| 538 | dev_kfree_skb_irq(dev->tx_skb); |
| 539 | if (!netif_device_present(dev->netdev)) |
| 540 | return; |
| 541 | if (urb->status) |
| 542 | info("%s: Tx status %d", dev->netdev->name, urb->status); |
| 543 | dev->netdev->trans_start = jiffies; |
| 544 | netif_wake_queue(dev->netdev); |
| 545 | } |
| 546 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 547 | static void intr_callback(struct urb *urb) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | { |
| 549 | rtl8150_t *dev; |
| 550 | __u8 *d; |
| 551 | int status; |
| 552 | |
| 553 | dev = urb->context; |
| 554 | if (!dev) |
| 555 | return; |
| 556 | switch (urb->status) { |
| 557 | case 0: /* success */ |
| 558 | break; |
| 559 | case -ECONNRESET: /* unlink */ |
| 560 | case -ENOENT: |
| 561 | case -ESHUTDOWN: |
| 562 | return; |
| 563 | /* -EPIPE: should clear the halt */ |
| 564 | default: |
| 565 | info("%s: intr status %d", dev->netdev->name, urb->status); |
| 566 | goto resubmit; |
| 567 | } |
| 568 | |
| 569 | d = urb->transfer_buffer; |
| 570 | if (d[0] & TSR_ERRORS) { |
| 571 | dev->stats.tx_errors++; |
| 572 | if (d[INT_TSR] & (TSR_ECOL | TSR_JBR)) |
| 573 | dev->stats.tx_aborted_errors++; |
| 574 | if (d[INT_TSR] & TSR_LCOL) |
| 575 | dev->stats.tx_window_errors++; |
| 576 | if (d[INT_TSR] & TSR_LOSS_CRS) |
| 577 | dev->stats.tx_carrier_errors++; |
| 578 | } |
| 579 | /* Report link status changes to the network stack */ |
| 580 | if ((d[INT_MSR] & MSR_LINK) == 0) { |
| 581 | if (netif_carrier_ok(dev->netdev)) { |
| 582 | netif_carrier_off(dev->netdev); |
| 583 | dbg("%s: LINK LOST\n", __func__); |
| 584 | } |
| 585 | } else { |
| 586 | if (!netif_carrier_ok(dev->netdev)) { |
| 587 | netif_carrier_on(dev->netdev); |
| 588 | dbg("%s: LINK CAME BACK\n", __func__); |
| 589 | } |
| 590 | } |
| 591 | |
| 592 | resubmit: |
Christoph Lameter | 54e6ecb | 2006-12-06 20:33:16 -0800 | [diff] [blame] | 593 | status = usb_submit_urb (urb, GFP_ATOMIC); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 594 | if (status == -ENODEV) |
| 595 | netif_device_detach(dev->netdev); |
| 596 | else if (status) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 597 | err ("can't resubmit intr, %s-%s/input0, status %d", |
| 598 | dev->udev->bus->bus_name, |
| 599 | dev->udev->devpath, status); |
| 600 | } |
| 601 | |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 602 | static int rtl8150_suspend(struct usb_interface *intf, pm_message_t message) |
| 603 | { |
| 604 | rtl8150_t *dev = usb_get_intfdata(intf); |
| 605 | |
| 606 | netif_device_detach(dev->netdev); |
| 607 | |
| 608 | if (netif_running(dev->netdev)) { |
| 609 | usb_kill_urb(dev->rx_urb); |
| 610 | usb_kill_urb(dev->intr_urb); |
| 611 | } |
| 612 | return 0; |
| 613 | } |
| 614 | |
| 615 | static int rtl8150_resume(struct usb_interface *intf) |
| 616 | { |
| 617 | rtl8150_t *dev = usb_get_intfdata(intf); |
| 618 | |
| 619 | netif_device_attach(dev->netdev); |
| 620 | if (netif_running(dev->netdev)) { |
| 621 | dev->rx_urb->status = 0; |
| 622 | dev->rx_urb->actual_length = 0; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 623 | read_bulk_callback(dev->rx_urb); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 624 | |
| 625 | dev->intr_urb->status = 0; |
| 626 | dev->intr_urb->actual_length = 0; |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 627 | intr_callback(dev->intr_urb); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 628 | } |
| 629 | return 0; |
| 630 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 631 | |
| 632 | /* |
| 633 | ** |
| 634 | ** network related part of the code |
| 635 | ** |
| 636 | */ |
| 637 | |
| 638 | static void fill_skb_pool(rtl8150_t *dev) |
| 639 | { |
| 640 | struct sk_buff *skb; |
| 641 | int i; |
| 642 | |
| 643 | for (i = 0; i < RX_SKB_POOL_SIZE; i++) { |
| 644 | if (dev->rx_skb_pool[i]) |
| 645 | continue; |
| 646 | skb = dev_alloc_skb(RTL8150_MTU + 2); |
| 647 | if (!skb) { |
| 648 | return; |
| 649 | } |
| 650 | skb->dev = dev->netdev; |
| 651 | skb_reserve(skb, 2); |
| 652 | dev->rx_skb_pool[i] = skb; |
| 653 | } |
| 654 | } |
| 655 | |
| 656 | static void free_skb_pool(rtl8150_t *dev) |
| 657 | { |
| 658 | int i; |
| 659 | |
| 660 | for (i = 0; i < RX_SKB_POOL_SIZE; i++) |
| 661 | if (dev->rx_skb_pool[i]) |
| 662 | dev_kfree_skb(dev->rx_skb_pool[i]); |
| 663 | } |
| 664 | |
| 665 | static int enable_net_traffic(rtl8150_t * dev) |
| 666 | { |
| 667 | u8 cr, tcr, rcr, msr; |
| 668 | |
| 669 | if (!rtl8150_reset(dev)) { |
| 670 | warn("%s - device reset failed", __FUNCTION__); |
| 671 | } |
| 672 | /* RCR bit7=1 attach Rx info at the end; =0 HW CRC (which is broken) */ |
| 673 | rcr = 0x9e; |
| 674 | dev->rx_creg = cpu_to_le16(rcr); |
| 675 | tcr = 0xd8; |
| 676 | cr = 0x0c; |
| 677 | if (!(rcr & 0x80)) |
| 678 | set_bit(RTL8150_HW_CRC, &dev->flags); |
| 679 | set_registers(dev, RCR, 1, &rcr); |
| 680 | set_registers(dev, TCR, 1, &tcr); |
| 681 | set_registers(dev, CR, 1, &cr); |
| 682 | get_registers(dev, MSR, 1, &msr); |
| 683 | |
| 684 | return 0; |
| 685 | } |
| 686 | |
| 687 | static void disable_net_traffic(rtl8150_t * dev) |
| 688 | { |
| 689 | u8 cr; |
| 690 | |
| 691 | get_registers(dev, CR, 1, &cr); |
| 692 | cr &= 0xf3; |
| 693 | set_registers(dev, CR, 1, &cr); |
| 694 | } |
| 695 | |
| 696 | static struct net_device_stats *rtl8150_netdev_stats(struct net_device *dev) |
| 697 | { |
| 698 | return &((rtl8150_t *)netdev_priv(dev))->stats; |
| 699 | } |
| 700 | |
| 701 | static void rtl8150_tx_timeout(struct net_device *netdev) |
| 702 | { |
| 703 | rtl8150_t *dev = netdev_priv(netdev); |
| 704 | warn("%s: Tx timeout.", netdev->name); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | usb_unlink_urb(dev->tx_urb); |
| 706 | dev->stats.tx_errors++; |
| 707 | } |
| 708 | |
| 709 | static void rtl8150_set_multicast(struct net_device *netdev) |
| 710 | { |
| 711 | rtl8150_t *dev = netdev_priv(netdev); |
| 712 | netif_stop_queue(netdev); |
| 713 | if (netdev->flags & IFF_PROMISC) { |
| 714 | dev->rx_creg |= cpu_to_le16(0x0001); |
| 715 | info("%s: promiscuous mode", netdev->name); |
YOSHIFUJI Hideaki | ae0a97b | 2005-05-25 16:07:04 +0900 | [diff] [blame] | 716 | } else if (netdev->mc_count || |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 717 | (netdev->flags & IFF_ALLMULTI)) { |
| 718 | dev->rx_creg &= cpu_to_le16(0xfffe); |
| 719 | dev->rx_creg |= cpu_to_le16(0x0002); |
| 720 | info("%s: allmulti set", netdev->name); |
| 721 | } else { |
| 722 | /* ~RX_MULTICAST, ~RX_PROMISCUOUS */ |
| 723 | dev->rx_creg &= cpu_to_le16(0x00fc); |
| 724 | } |
| 725 | async_set_registers(dev, RCR, 2); |
| 726 | netif_wake_queue(netdev); |
| 727 | } |
| 728 | |
| 729 | static int rtl8150_start_xmit(struct sk_buff *skb, struct net_device *netdev) |
| 730 | { |
| 731 | rtl8150_t *dev = netdev_priv(netdev); |
| 732 | int count, res; |
| 733 | |
| 734 | netif_stop_queue(netdev); |
| 735 | count = (skb->len < 60) ? 60 : skb->len; |
| 736 | count = (count & 0x3f) ? count : count + 1; |
| 737 | dev->tx_skb = skb; |
| 738 | usb_fill_bulk_urb(dev->tx_urb, dev->udev, usb_sndbulkpipe(dev->udev, 2), |
| 739 | skb->data, count, write_bulk_callback, dev); |
| 740 | if ((res = usb_submit_urb(dev->tx_urb, GFP_ATOMIC))) { |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 741 | /* Can we get/handle EPIPE here? */ |
| 742 | if (res == -ENODEV) |
| 743 | netif_device_detach(dev->netdev); |
| 744 | else { |
| 745 | warn("failed tx_urb %d\n", res); |
| 746 | dev->stats.tx_errors++; |
| 747 | netif_start_queue(netdev); |
| 748 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | } else { |
| 750 | dev->stats.tx_packets++; |
| 751 | dev->stats.tx_bytes += skb->len; |
| 752 | netdev->trans_start = jiffies; |
| 753 | } |
| 754 | |
| 755 | return 0; |
| 756 | } |
| 757 | |
| 758 | |
| 759 | static void set_carrier(struct net_device *netdev) |
| 760 | { |
| 761 | rtl8150_t *dev = netdev_priv(netdev); |
| 762 | short tmp; |
| 763 | |
| 764 | get_registers(dev, CSCR, 2, &tmp); |
| 765 | if (tmp & CSCR_LINK_STATUS) |
| 766 | netif_carrier_on(netdev); |
| 767 | else |
| 768 | netif_carrier_off(netdev); |
| 769 | } |
| 770 | |
| 771 | static int rtl8150_open(struct net_device *netdev) |
| 772 | { |
| 773 | rtl8150_t *dev = netdev_priv(netdev); |
| 774 | int res; |
| 775 | |
| 776 | if (dev->rx_skb == NULL) |
| 777 | dev->rx_skb = pull_skb(dev); |
| 778 | if (!dev->rx_skb) |
| 779 | return -ENOMEM; |
| 780 | |
| 781 | set_registers(dev, IDR, 6, netdev->dev_addr); |
| 782 | |
| 783 | usb_fill_bulk_urb(dev->rx_urb, dev->udev, usb_rcvbulkpipe(dev->udev, 1), |
| 784 | dev->rx_skb->data, RTL8150_MTU, read_bulk_callback, dev); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 785 | if ((res = usb_submit_urb(dev->rx_urb, GFP_KERNEL))) { |
| 786 | if (res == -ENODEV) |
| 787 | netif_device_detach(dev->netdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 788 | warn("%s: rx_urb submit failed: %d", __FUNCTION__, res); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 789 | return res; |
| 790 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 791 | usb_fill_int_urb(dev->intr_urb, dev->udev, usb_rcvintpipe(dev->udev, 3), |
| 792 | dev->intr_buff, INTBUFSIZE, intr_callback, |
| 793 | dev, dev->intr_interval); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 794 | if ((res = usb_submit_urb(dev->intr_urb, GFP_KERNEL))) { |
| 795 | if (res == -ENODEV) |
| 796 | netif_device_detach(dev->netdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | warn("%s: intr_urb submit failed: %d", __FUNCTION__, res); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 798 | usb_kill_urb(dev->rx_urb); |
| 799 | return res; |
| 800 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | enable_net_traffic(dev); |
| 802 | set_carrier(netdev); |
Peter Chubb | 23219c1 | 2006-07-25 20:39:14 +1000 | [diff] [blame] | 803 | netif_start_queue(netdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 804 | |
| 805 | return res; |
| 806 | } |
| 807 | |
| 808 | static int rtl8150_close(struct net_device *netdev) |
| 809 | { |
| 810 | rtl8150_t *dev = netdev_priv(netdev); |
| 811 | int res = 0; |
| 812 | |
| 813 | netif_stop_queue(netdev); |
| 814 | if (!test_bit(RTL8150_UNPLUG, &dev->flags)) |
| 815 | disable_net_traffic(dev); |
| 816 | unlink_all_urbs(dev); |
| 817 | |
| 818 | return res; |
| 819 | } |
| 820 | |
| 821 | static void rtl8150_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info) |
| 822 | { |
| 823 | rtl8150_t *dev = netdev_priv(netdev); |
| 824 | |
| 825 | strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); |
| 826 | strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); |
| 827 | usb_make_path(dev->udev, info->bus_info, sizeof info->bus_info); |
| 828 | } |
| 829 | |
| 830 | static int rtl8150_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) |
| 831 | { |
| 832 | rtl8150_t *dev = netdev_priv(netdev); |
| 833 | short lpa, bmcr; |
| 834 | |
| 835 | ecmd->supported = (SUPPORTED_10baseT_Half | |
| 836 | SUPPORTED_10baseT_Full | |
| 837 | SUPPORTED_100baseT_Half | |
| 838 | SUPPORTED_100baseT_Full | |
| 839 | SUPPORTED_Autoneg | |
| 840 | SUPPORTED_TP | SUPPORTED_MII); |
| 841 | ecmd->port = PORT_TP; |
| 842 | ecmd->transceiver = XCVR_INTERNAL; |
| 843 | ecmd->phy_address = dev->phy; |
| 844 | get_registers(dev, BMCR, 2, &bmcr); |
| 845 | get_registers(dev, ANLP, 2, &lpa); |
| 846 | if (bmcr & BMCR_ANENABLE) { |
| 847 | ecmd->autoneg = AUTONEG_ENABLE; |
| 848 | ecmd->speed = (lpa & (LPA_100HALF | LPA_100FULL)) ? |
| 849 | SPEED_100 : SPEED_10; |
| 850 | if (ecmd->speed == SPEED_100) |
| 851 | ecmd->duplex = (lpa & LPA_100FULL) ? |
| 852 | DUPLEX_FULL : DUPLEX_HALF; |
| 853 | else |
| 854 | ecmd->duplex = (lpa & LPA_10FULL) ? |
| 855 | DUPLEX_FULL : DUPLEX_HALF; |
| 856 | } else { |
| 857 | ecmd->autoneg = AUTONEG_DISABLE; |
| 858 | ecmd->speed = (bmcr & BMCR_SPEED100) ? |
| 859 | SPEED_100 : SPEED_10; |
| 860 | ecmd->duplex = (bmcr & BMCR_FULLDPLX) ? |
| 861 | DUPLEX_FULL : DUPLEX_HALF; |
| 862 | } |
| 863 | return 0; |
| 864 | } |
| 865 | |
| 866 | static struct ethtool_ops ops = { |
| 867 | .get_drvinfo = rtl8150_get_drvinfo, |
| 868 | .get_settings = rtl8150_get_settings, |
| 869 | .get_link = ethtool_op_get_link |
| 870 | }; |
| 871 | |
| 872 | static int rtl8150_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd) |
| 873 | { |
| 874 | rtl8150_t *dev = netdev_priv(netdev); |
| 875 | u16 *data = (u16 *) & rq->ifr_ifru; |
| 876 | int res = 0; |
| 877 | |
| 878 | switch (cmd) { |
| 879 | case SIOCDEVPRIVATE: |
| 880 | data[0] = dev->phy; |
| 881 | case SIOCDEVPRIVATE + 1: |
| 882 | read_mii_word(dev, dev->phy, (data[1] & 0x1f), &data[3]); |
| 883 | break; |
| 884 | case SIOCDEVPRIVATE + 2: |
| 885 | if (!capable(CAP_NET_ADMIN)) |
| 886 | return -EPERM; |
| 887 | write_mii_word(dev, dev->phy, (data[1] & 0x1f), data[2]); |
| 888 | break; |
| 889 | default: |
| 890 | res = -EOPNOTSUPP; |
| 891 | } |
| 892 | |
| 893 | return res; |
| 894 | } |
| 895 | |
| 896 | static int rtl8150_probe(struct usb_interface *intf, |
| 897 | const struct usb_device_id *id) |
| 898 | { |
| 899 | struct usb_device *udev = interface_to_usbdev(intf); |
| 900 | rtl8150_t *dev; |
| 901 | struct net_device *netdev; |
| 902 | |
| 903 | netdev = alloc_etherdev(sizeof(rtl8150_t)); |
| 904 | if (!netdev) { |
| 905 | err("Out of memory"); |
| 906 | return -ENOMEM; |
| 907 | } |
| 908 | |
| 909 | dev = netdev_priv(netdev); |
| 910 | memset(dev, 0, sizeof(rtl8150_t)); |
| 911 | |
| 912 | dev->intr_buff = kmalloc(INTBUFSIZE, GFP_KERNEL); |
| 913 | if (!dev->intr_buff) { |
| 914 | free_netdev(netdev); |
| 915 | return -ENOMEM; |
| 916 | } |
| 917 | |
| 918 | tasklet_init(&dev->tl, rx_fixup, (unsigned long)dev); |
| 919 | spin_lock_init(&dev->rx_pool_lock); |
| 920 | |
| 921 | dev->udev = udev; |
| 922 | dev->netdev = netdev; |
| 923 | SET_MODULE_OWNER(netdev); |
| 924 | netdev->open = rtl8150_open; |
| 925 | netdev->stop = rtl8150_close; |
| 926 | netdev->do_ioctl = rtl8150_ioctl; |
| 927 | netdev->watchdog_timeo = RTL8150_TX_TIMEOUT; |
| 928 | netdev->tx_timeout = rtl8150_tx_timeout; |
| 929 | netdev->hard_start_xmit = rtl8150_start_xmit; |
| 930 | netdev->set_multicast_list = rtl8150_set_multicast; |
| 931 | netdev->set_mac_address = rtl8150_set_mac_address; |
| 932 | netdev->get_stats = rtl8150_netdev_stats; |
| 933 | netdev->mtu = RTL8150_MTU; |
| 934 | SET_ETHTOOL_OPS(netdev, &ops); |
| 935 | dev->intr_interval = 100; /* 100ms */ |
| 936 | |
| 937 | if (!alloc_all_urbs(dev)) { |
| 938 | err("out of memory"); |
| 939 | goto out; |
| 940 | } |
| 941 | if (!rtl8150_reset(dev)) { |
| 942 | err("couldn't reset the device"); |
| 943 | goto out1; |
| 944 | } |
| 945 | fill_skb_pool(dev); |
| 946 | set_ethernet_addr(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 947 | |
| 948 | usb_set_intfdata(intf, dev); |
| 949 | SET_NETDEV_DEV(netdev, &intf->dev); |
| 950 | if (register_netdev(netdev) != 0) { |
| 951 | err("couldn't register the device"); |
| 952 | goto out2; |
| 953 | } |
Petko Manolov | 09abfa8 | 2006-03-15 16:29:38 +0200 | [diff] [blame] | 954 | |
| 955 | info("%s: rtl8150 is detected", netdev->name); |
| 956 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 957 | return 0; |
| 958 | |
| 959 | out2: |
| 960 | usb_set_intfdata(intf, NULL); |
| 961 | free_skb_pool(dev); |
| 962 | out1: |
| 963 | free_all_urbs(dev); |
| 964 | out: |
| 965 | kfree(dev->intr_buff); |
| 966 | free_netdev(netdev); |
| 967 | return -EIO; |
| 968 | } |
| 969 | |
| 970 | static void rtl8150_disconnect(struct usb_interface *intf) |
| 971 | { |
| 972 | rtl8150_t *dev = usb_get_intfdata(intf); |
| 973 | |
| 974 | usb_set_intfdata(intf, NULL); |
| 975 | if (dev) { |
| 976 | set_bit(RTL8150_UNPLUG, &dev->flags); |
Greg Kroah-Hartman | 8da608c | 2005-06-20 21:15:16 -0700 | [diff] [blame] | 977 | tasklet_disable(&dev->tl); |
Andrew Morton | eff674a | 2006-08-14 23:11:09 -0700 | [diff] [blame] | 978 | tasklet_kill(&dev->tl); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 979 | unregister_netdev(dev->netdev); |
| 980 | unlink_all_urbs(dev); |
| 981 | free_all_urbs(dev); |
| 982 | free_skb_pool(dev); |
| 983 | if (dev->rx_skb) |
| 984 | dev_kfree_skb(dev->rx_skb); |
| 985 | kfree(dev->intr_buff); |
| 986 | free_netdev(dev->netdev); |
| 987 | } |
| 988 | } |
| 989 | |
| 990 | static int __init usb_rtl8150_init(void) |
| 991 | { |
| 992 | info(DRIVER_DESC " " DRIVER_VERSION); |
| 993 | return usb_register(&rtl8150_driver); |
| 994 | } |
| 995 | |
| 996 | static void __exit usb_rtl8150_exit(void) |
| 997 | { |
| 998 | usb_deregister(&rtl8150_driver); |
| 999 | } |
| 1000 | |
| 1001 | module_init(usb_rtl8150_init); |
| 1002 | module_exit(usb_rtl8150_exit); |
| 1003 | |
| 1004 | MODULE_AUTHOR(DRIVER_AUTHOR); |
| 1005 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 1006 | MODULE_LICENSE("GPL"); |