1 /* 2 * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com) 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License version 2 as 6 * published by the Free Software Foundation. 7 * 8 * ChangeLog: 9 * .... Most of the time spent on reading sources & docs. 10 * v0.2.x First official release for the Linux kernel. 11 * v0.3.0 Beutified and structured, some bugs fixed. 12 * v0.3.x URBifying bulk requests and bugfixing. First relatively 13 * stable release. Still can touch device's registers only 14 * from top-halves. 15 * v0.4.0 Control messages remained unurbified are now URBs. 16 * Now we can touch the HW at any time. 17 * v0.4.9 Control urbs again use process context to wait. Argh... 18 * Some long standing bugs (enable_net_traffic) fixed. 19 * Also nasty trick about resubmiting control urb from 20 * interrupt context used. Please let me know how it 21 * behaves. Pegasus II support added since this version. 22 * TODO: suppressing HCD warnings spewage on disconnect. 23 * v0.4.13 Ethernet address is now set at probe(), not at open() 24 * time as this seems to break dhcpd. 25 * v0.5.0 branch to 2.5.x kernels 26 * v0.5.1 ethtool support added 27 * v0.5.5 rx socket buffers are in a pool and the their allocation 28 * is out of the interrupt routine. 29 * ... 30 * v0.9.3 simplified [get|set]_register(s), async update registers 31 * logic revisited, receive skb_pool removed. 32 */ 33 34 #include <linux/sched.h> 35 #include <linux/slab.h> 36 #include <linux/init.h> 37 #include <linux/delay.h> 38 #include <linux/netdevice.h> 39 #include <linux/etherdevice.h> 40 #include <linux/ethtool.h> 41 #include <linux/mii.h> 42 #include <linux/usb.h> 43 #include <linux/module.h> 44 #include <asm/byteorder.h> 45 #include <linux/uaccess.h> 46 #include "pegasus.h" 47 48 /* 49 * Version Information 50 */ 51 #define DRIVER_VERSION "v0.9.3 (2013/04/25)" 52 #define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>" 53 #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" 54 55 static const char driver_name[] = "pegasus"; 56 57 #undef PEGASUS_WRITE_EEPROM 58 #define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \ 59 BMSR_100FULL | BMSR_ANEGCAPABLE) 60 61 static bool loopback; 62 static bool mii_mode; 63 static char *devid; 64 65 static struct usb_eth_dev usb_dev_id[] = { 66 #define PEGASUS_DEV(pn, vid, pid, flags) \ 67 {.name = pn, .vendor = vid, .device = pid, .private = flags}, 68 #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ 69 PEGASUS_DEV(pn, vid, pid, flags) 70 #include "pegasus.h" 71 #undef PEGASUS_DEV 72 #undef PEGASUS_DEV_CLASS 73 {NULL, 0, 0, 0}, 74 {NULL, 0, 0, 0} 75 }; 76 77 static struct usb_device_id pegasus_ids[] = { 78 #define PEGASUS_DEV(pn, vid, pid, flags) \ 79 {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid}, 80 /* 81 * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product 82 * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to 83 * ignore adaptors belonging to the "Wireless" class 0xE0. For this one 84 * case anyway, seeing as the pegasus is for "Wired" adaptors. 85 */ 86 #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ 87 {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \ 88 .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass}, 89 #include "pegasus.h" 90 #undef PEGASUS_DEV 91 #undef PEGASUS_DEV_CLASS 92 {}, 93 {} 94 }; 95 96 MODULE_AUTHOR(DRIVER_AUTHOR); 97 MODULE_DESCRIPTION(DRIVER_DESC); 98 MODULE_LICENSE("GPL"); 99 module_param(loopback, bool, 0); 100 module_param(mii_mode, bool, 0); 101 module_param(devid, charp, 0); 102 MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); 103 MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0"); 104 MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'"); 105 106 /* use ethtool to change the level for any given device */ 107 static int msg_level = -1; 108 module_param(msg_level, int, 0); 109 MODULE_PARM_DESC(msg_level, "Override default message level"); 110 111 MODULE_DEVICE_TABLE(usb, pegasus_ids); 112 static const struct net_device_ops pegasus_netdev_ops; 113 114 /*****/ 115 116 static void async_ctrl_callback(struct urb *urb) 117 { 118 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; 119 int status = urb->status; 120 121 if (status < 0) 122 dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status); 123 kfree(req); 124 usb_free_urb(urb); 125 } 126 127 static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data) 128 { 129 u8 *buf; 130 int ret; 131 132 buf = kmalloc(size, GFP_NOIO); 133 if (!buf) 134 return -ENOMEM; 135 136 ret = usb_control_msg(pegasus->usb, usb_rcvctrlpipe(pegasus->usb, 0), 137 PEGASUS_REQ_GET_REGS, PEGASUS_REQT_READ, 0, 138 indx, buf, size, 1000); 139 if (ret < 0) 140 netif_dbg(pegasus, drv, pegasus->net, 141 "%s returned %d\n", __func__, ret); 142 else if (ret <= size) 143 memcpy(data, buf, ret); 144 kfree(buf); 145 return ret; 146 } 147 148 static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, 149 const void *data) 150 { 151 u8 *buf; 152 int ret; 153 154 buf = kmemdup(data, size, GFP_NOIO); 155 if (!buf) 156 return -ENOMEM; 157 158 ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0), 159 PEGASUS_REQ_SET_REGS, PEGASUS_REQT_WRITE, 0, 160 indx, buf, size, 100); 161 if (ret < 0) 162 netif_dbg(pegasus, drv, pegasus->net, 163 "%s returned %d\n", __func__, ret); 164 kfree(buf); 165 return ret; 166 } 167 168 static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data) 169 { 170 u8 *buf; 171 int ret; 172 173 buf = kmemdup(&data, 1, GFP_NOIO); 174 if (!buf) 175 return -ENOMEM; 176 177 ret = usb_control_msg(pegasus->usb, usb_sndctrlpipe(pegasus->usb, 0), 178 PEGASUS_REQ_SET_REG, PEGASUS_REQT_WRITE, data, 179 indx, buf, 1, 1000); 180 if (ret < 0) 181 netif_dbg(pegasus, drv, pegasus->net, 182 "%s returned %d\n", __func__, ret); 183 kfree(buf); 184 return ret; 185 } 186 187 static int update_eth_regs_async(pegasus_t *pegasus) 188 { 189 int ret = -ENOMEM; 190 struct urb *async_urb; 191 struct usb_ctrlrequest *req; 192 193 req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); 194 if (req == NULL) 195 return ret; 196 197 async_urb = usb_alloc_urb(0, GFP_ATOMIC); 198 if (async_urb == NULL) { 199 kfree(req); 200 return ret; 201 } 202 req->bRequestType = PEGASUS_REQT_WRITE; 203 req->bRequest = PEGASUS_REQ_SET_REGS; 204 req->wValue = cpu_to_le16(0); 205 req->wIndex = cpu_to_le16(EthCtrl0); 206 req->wLength = cpu_to_le16(3); 207 208 usb_fill_control_urb(async_urb, pegasus->usb, 209 usb_sndctrlpipe(pegasus->usb, 0), (void *)req, 210 pegasus->eth_regs, 3, async_ctrl_callback, req); 211 212 ret = usb_submit_urb(async_urb, GFP_ATOMIC); 213 if (ret) { 214 if (ret == -ENODEV) 215 netif_device_detach(pegasus->net); 216 netif_err(pegasus, drv, pegasus->net, 217 "%s returned %d\n", __func__, ret); 218 } 219 return ret; 220 } 221 222 static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd) 223 { 224 int i; 225 __u8 data[4] = { phy, 0, 0, indx }; 226 __le16 regdi; 227 int ret = -ETIMEDOUT; 228 229 if (cmd & PHY_WRITE) { 230 __le16 *t = (__le16 *) & data[1]; 231 *t = cpu_to_le16(*regd); 232 } 233 set_register(p, PhyCtrl, 0); 234 set_registers(p, PhyAddr, sizeof(data), data); 235 set_register(p, PhyCtrl, (indx | cmd)); 236 for (i = 0; i < REG_TIMEOUT; i++) { 237 ret = get_registers(p, PhyCtrl, 1, data); 238 if (ret < 0) 239 goto fail; 240 if (data[0] & PHY_DONE) 241 break; 242 } 243 if (i >= REG_TIMEOUT) 244 goto fail; 245 if (cmd & PHY_READ) { 246 ret = get_registers(p, PhyData, 2, ®di); 247 *regd = le16_to_cpu(regdi); 248 return ret; 249 } 250 return 0; 251 fail: 252 netif_dbg(p, drv, p->net, "%s failed\n", __func__); 253 return ret; 254 } 255 256 /* Returns non-negative int on success, error on failure */ 257 static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) 258 { 259 return __mii_op(pegasus, phy, indx, regd, PHY_READ); 260 } 261 262 /* Returns zero on success, error on failure */ 263 static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) 264 { 265 return __mii_op(pegasus, phy, indx, regd, PHY_WRITE); 266 } 267 268 static int mdio_read(struct net_device *dev, int phy_id, int loc) 269 { 270 pegasus_t *pegasus = netdev_priv(dev); 271 u16 res; 272 273 read_mii_word(pegasus, phy_id, loc, &res); 274 return (int)res; 275 } 276 277 static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) 278 { 279 pegasus_t *pegasus = netdev_priv(dev); 280 u16 data = val; 281 282 write_mii_word(pegasus, phy_id, loc, &data); 283 } 284 285 static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata) 286 { 287 int i; 288 __u8 tmp; 289 __le16 retdatai; 290 int ret; 291 292 set_register(pegasus, EpromCtrl, 0); 293 set_register(pegasus, EpromOffset, index); 294 set_register(pegasus, EpromCtrl, EPROM_READ); 295 296 for (i = 0; i < REG_TIMEOUT; i++) { 297 ret = get_registers(pegasus, EpromCtrl, 1, &tmp); 298 if (tmp & EPROM_DONE) 299 break; 300 if (ret == -ESHUTDOWN) 301 goto fail; 302 } 303 if (i >= REG_TIMEOUT) 304 goto fail; 305 306 ret = get_registers(pegasus, EpromData, 2, &retdatai); 307 *retdata = le16_to_cpu(retdatai); 308 return ret; 309 310 fail: 311 netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); 312 return -ETIMEDOUT; 313 } 314 315 #ifdef PEGASUS_WRITE_EEPROM 316 static inline void enable_eprom_write(pegasus_t *pegasus) 317 { 318 __u8 tmp; 319 320 get_registers(pegasus, EthCtrl2, 1, &tmp); 321 set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); 322 } 323 324 static inline void disable_eprom_write(pegasus_t *pegasus) 325 { 326 __u8 tmp; 327 328 get_registers(pegasus, EthCtrl2, 1, &tmp); 329 set_register(pegasus, EpromCtrl, 0); 330 set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); 331 } 332 333 static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data) 334 { 335 int i; 336 __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; 337 int ret; 338 __le16 le_data = cpu_to_le16(data); 339 340 set_registers(pegasus, EpromOffset, 4, d); 341 enable_eprom_write(pegasus); 342 set_register(pegasus, EpromOffset, index); 343 set_registers(pegasus, EpromData, 2, &le_data); 344 set_register(pegasus, EpromCtrl, EPROM_WRITE); 345 346 for (i = 0; i < REG_TIMEOUT; i++) { 347 ret = get_registers(pegasus, EpromCtrl, 1, &tmp); 348 if (ret == -ESHUTDOWN) 349 goto fail; 350 if (tmp & EPROM_DONE) 351 break; 352 } 353 disable_eprom_write(pegasus); 354 if (i >= REG_TIMEOUT) 355 goto fail; 356 357 return ret; 358 359 fail: 360 netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); 361 return -ETIMEDOUT; 362 } 363 #endif /* PEGASUS_WRITE_EEPROM */ 364 365 static inline void get_node_id(pegasus_t *pegasus, __u8 *id) 366 { 367 int i; 368 __u16 w16; 369 370 for (i = 0; i < 3; i++) { 371 read_eprom_word(pegasus, i, &w16); 372 ((__le16 *) id)[i] = cpu_to_le16(w16); 373 } 374 } 375 376 static void set_ethernet_addr(pegasus_t *pegasus) 377 { 378 __u8 node_id[6]; 379 380 if (pegasus->features & PEGASUS_II) { 381 get_registers(pegasus, 0x10, sizeof(node_id), node_id); 382 } else { 383 get_node_id(pegasus, node_id); 384 set_registers(pegasus, EthID, sizeof(node_id), node_id); 385 } 386 memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id)); 387 } 388 389 static inline int reset_mac(pegasus_t *pegasus) 390 { 391 __u8 data = 0x8; 392 int i; 393 394 set_register(pegasus, EthCtrl1, data); 395 for (i = 0; i < REG_TIMEOUT; i++) { 396 get_registers(pegasus, EthCtrl1, 1, &data); 397 if (~data & 0x08) { 398 if (loopback) 399 break; 400 if (mii_mode && (pegasus->features & HAS_HOME_PNA)) 401 set_register(pegasus, Gpio1, 0x34); 402 else 403 set_register(pegasus, Gpio1, 0x26); 404 set_register(pegasus, Gpio0, pegasus->features); 405 set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); 406 break; 407 } 408 } 409 if (i == REG_TIMEOUT) 410 return -ETIMEDOUT; 411 412 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || 413 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { 414 set_register(pegasus, Gpio0, 0x24); 415 set_register(pegasus, Gpio0, 0x26); 416 } 417 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { 418 __u16 auxmode; 419 read_mii_word(pegasus, 3, 0x1b, &auxmode); 420 auxmode |= 4; 421 write_mii_word(pegasus, 3, 0x1b, &auxmode); 422 } 423 424 return 0; 425 } 426 427 static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) 428 { 429 __u16 linkpart; 430 __u8 data[4]; 431 pegasus_t *pegasus = netdev_priv(dev); 432 int ret; 433 434 read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); 435 data[0] = 0xc8; /* TX & RX enable, append status, no CRC */ 436 data[1] = 0; 437 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) 438 data[1] |= 0x20; /* set full duplex */ 439 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) 440 data[1] |= 0x10; /* set 100 Mbps */ 441 if (mii_mode) 442 data[1] = 0; 443 data[2] = loopback ? 0x09 : 0x01; 444 445 memcpy(pegasus->eth_regs, data, sizeof(data)); 446 ret = set_registers(pegasus, EthCtrl0, 3, data); 447 448 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || 449 usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || 450 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { 451 u16 auxmode; 452 read_mii_word(pegasus, 0, 0x1b, &auxmode); 453 auxmode |= 4; 454 write_mii_word(pegasus, 0, 0x1b, &auxmode); 455 } 456 457 return ret; 458 } 459 460 static void read_bulk_callback(struct urb *urb) 461 { 462 pegasus_t *pegasus = urb->context; 463 struct net_device *net; 464 int rx_status, count = urb->actual_length; 465 int status = urb->status; 466 u8 *buf = urb->transfer_buffer; 467 __u16 pkt_len; 468 469 if (!pegasus) 470 return; 471 472 net = pegasus->net; 473 if (!netif_device_present(net) || !netif_running(net)) 474 return; 475 476 switch (status) { 477 case 0: 478 break; 479 case -ETIME: 480 netif_dbg(pegasus, rx_err, net, "reset MAC\n"); 481 pegasus->flags &= ~PEGASUS_RX_BUSY; 482 break; 483 case -EPIPE: /* stall, or disconnect from TT */ 484 /* FIXME schedule work to clear the halt */ 485 netif_warn(pegasus, rx_err, net, "no rx stall recovery\n"); 486 return; 487 case -ENOENT: 488 case -ECONNRESET: 489 case -ESHUTDOWN: 490 netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status); 491 return; 492 default: 493 netif_dbg(pegasus, rx_err, net, "RX status %d\n", status); 494 goto goon; 495 } 496 497 if (count < 4) 498 goto goon; 499 500 rx_status = buf[count - 2]; 501 if (rx_status & 0x1e) { 502 netif_dbg(pegasus, rx_err, net, 503 "RX packet error %x\n", rx_status); 504 pegasus->stats.rx_errors++; 505 if (rx_status & 0x06) /* long or runt */ 506 pegasus->stats.rx_length_errors++; 507 if (rx_status & 0x08) 508 pegasus->stats.rx_crc_errors++; 509 if (rx_status & 0x10) /* extra bits */ 510 pegasus->stats.rx_frame_errors++; 511 goto goon; 512 } 513 if (pegasus->chip == 0x8513) { 514 pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); 515 pkt_len &= 0x0fff; 516 pegasus->rx_skb->data += 2; 517 } else { 518 pkt_len = buf[count - 3] << 8; 519 pkt_len += buf[count - 4]; 520 pkt_len &= 0xfff; 521 pkt_len -= 4; 522 } 523 524 /* 525 * If the packet is unreasonably long, quietly drop it rather than 526 * kernel panicing by calling skb_put. 527 */ 528 if (pkt_len > PEGASUS_MTU) 529 goto goon; 530 531 /* 532 * at this point we are sure pegasus->rx_skb != NULL 533 * so we go ahead and pass up the packet. 534 */ 535 skb_put(pegasus->rx_skb, pkt_len); 536 pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); 537 netif_rx(pegasus->rx_skb); 538 pegasus->stats.rx_packets++; 539 pegasus->stats.rx_bytes += pkt_len; 540 541 if (pegasus->flags & PEGASUS_UNPLUG) 542 return; 543 544 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU, 545 GFP_ATOMIC); 546 547 if (pegasus->rx_skb == NULL) 548 goto tl_sched; 549 goon: 550 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, 551 usb_rcvbulkpipe(pegasus->usb, 1), 552 pegasus->rx_skb->data, PEGASUS_MTU, 553 read_bulk_callback, pegasus); 554 rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); 555 if (rx_status == -ENODEV) 556 netif_device_detach(pegasus->net); 557 else if (rx_status) { 558 pegasus->flags |= PEGASUS_RX_URB_FAIL; 559 goto tl_sched; 560 } else { 561 pegasus->flags &= ~PEGASUS_RX_URB_FAIL; 562 } 563 564 return; 565 566 tl_sched: 567 tasklet_schedule(&pegasus->rx_tl); 568 } 569 570 static void rx_fixup(unsigned long data) 571 { 572 pegasus_t *pegasus; 573 int status; 574 575 pegasus = (pegasus_t *) data; 576 if (pegasus->flags & PEGASUS_UNPLUG) 577 return; 578 579 if (pegasus->flags & PEGASUS_RX_URB_FAIL) 580 if (pegasus->rx_skb) 581 goto try_again; 582 if (pegasus->rx_skb == NULL) 583 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, 584 PEGASUS_MTU, 585 GFP_ATOMIC); 586 if (pegasus->rx_skb == NULL) { 587 netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n"); 588 tasklet_schedule(&pegasus->rx_tl); 589 return; 590 } 591 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, 592 usb_rcvbulkpipe(pegasus->usb, 1), 593 pegasus->rx_skb->data, PEGASUS_MTU, 594 read_bulk_callback, pegasus); 595 try_again: 596 status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); 597 if (status == -ENODEV) 598 netif_device_detach(pegasus->net); 599 else if (status) { 600 pegasus->flags |= PEGASUS_RX_URB_FAIL; 601 tasklet_schedule(&pegasus->rx_tl); 602 } else { 603 pegasus->flags &= ~PEGASUS_RX_URB_FAIL; 604 } 605 } 606 607 static void write_bulk_callback(struct urb *urb) 608 { 609 pegasus_t *pegasus = urb->context; 610 struct net_device *net; 611 int status = urb->status; 612 613 if (!pegasus) 614 return; 615 616 net = pegasus->net; 617 618 if (!netif_device_present(net) || !netif_running(net)) 619 return; 620 621 switch (status) { 622 case -EPIPE: 623 /* FIXME schedule_work() to clear the tx halt */ 624 netif_stop_queue(net); 625 netif_warn(pegasus, tx_err, net, "no tx stall recovery\n"); 626 return; 627 case -ENOENT: 628 case -ECONNRESET: 629 case -ESHUTDOWN: 630 netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status); 631 return; 632 default: 633 netif_info(pegasus, tx_err, net, "TX status %d\n", status); 634 /* FALL THROUGH */ 635 case 0: 636 break; 637 } 638 639 netif_trans_update(net); /* prevent tx timeout */ 640 netif_wake_queue(net); 641 } 642 643 static void intr_callback(struct urb *urb) 644 { 645 pegasus_t *pegasus = urb->context; 646 struct net_device *net; 647 int res, status = urb->status; 648 649 if (!pegasus) 650 return; 651 net = pegasus->net; 652 653 switch (status) { 654 case 0: 655 break; 656 case -ECONNRESET: /* unlink */ 657 case -ENOENT: 658 case -ESHUTDOWN: 659 return; 660 default: 661 /* some Pegasus-I products report LOTS of data 662 * toggle errors... avoid log spamming 663 */ 664 netif_dbg(pegasus, timer, net, "intr status %d\n", status); 665 } 666 667 if (urb->actual_length >= 6) { 668 u8 *d = urb->transfer_buffer; 669 670 /* byte 0 == tx_status1, reg 2B */ 671 if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL 672 |LATE_COL|JABBER_TIMEOUT)) { 673 pegasus->stats.tx_errors++; 674 if (d[0] & TX_UNDERRUN) 675 pegasus->stats.tx_fifo_errors++; 676 if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) 677 pegasus->stats.tx_aborted_errors++; 678 if (d[0] & LATE_COL) 679 pegasus->stats.tx_window_errors++; 680 } 681 682 /* d[5].LINK_STATUS lies on some adapters. 683 * d[0].NO_CARRIER kicks in only with failed TX. 684 * ... so monitoring with MII may be safest. 685 */ 686 687 /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ 688 pegasus->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; 689 } 690 691 res = usb_submit_urb(urb, GFP_ATOMIC); 692 if (res == -ENODEV) 693 netif_device_detach(pegasus->net); 694 if (res) 695 netif_err(pegasus, timer, net, 696 "can't resubmit interrupt urb, %d\n", res); 697 } 698 699 static void pegasus_tx_timeout(struct net_device *net) 700 { 701 pegasus_t *pegasus = netdev_priv(net); 702 netif_warn(pegasus, timer, net, "tx timeout\n"); 703 usb_unlink_urb(pegasus->tx_urb); 704 pegasus->stats.tx_errors++; 705 } 706 707 static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb, 708 struct net_device *net) 709 { 710 pegasus_t *pegasus = netdev_priv(net); 711 int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; 712 int res; 713 __u16 l16 = skb->len; 714 715 netif_stop_queue(net); 716 717 ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); 718 skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len); 719 usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, 720 usb_sndbulkpipe(pegasus->usb, 2), 721 pegasus->tx_buff, count, 722 write_bulk_callback, pegasus); 723 if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { 724 netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res); 725 switch (res) { 726 case -EPIPE: /* stall, or disconnect from TT */ 727 /* cleanup should already have been scheduled */ 728 break; 729 case -ENODEV: /* disconnect() upcoming */ 730 case -EPERM: 731 netif_device_detach(pegasus->net); 732 break; 733 default: 734 pegasus->stats.tx_errors++; 735 netif_start_queue(net); 736 } 737 } else { 738 pegasus->stats.tx_packets++; 739 pegasus->stats.tx_bytes += skb->len; 740 } 741 dev_kfree_skb(skb); 742 743 return NETDEV_TX_OK; 744 } 745 746 static struct net_device_stats *pegasus_netdev_stats(struct net_device *dev) 747 { 748 return &((pegasus_t *) netdev_priv(dev))->stats; 749 } 750 751 static inline void disable_net_traffic(pegasus_t *pegasus) 752 { 753 __le16 tmp = cpu_to_le16(0); 754 755 set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp); 756 } 757 758 static inline void get_interrupt_interval(pegasus_t *pegasus) 759 { 760 u16 data; 761 u8 interval; 762 763 read_eprom_word(pegasus, 4, &data); 764 interval = data >> 8; 765 if (pegasus->usb->speed != USB_SPEED_HIGH) { 766 if (interval < 0x80) { 767 netif_info(pegasus, timer, pegasus->net, 768 "intr interval changed from %ums to %ums\n", 769 interval, 0x80); 770 interval = 0x80; 771 data = (data & 0x00FF) | ((u16)interval << 8); 772 #ifdef PEGASUS_WRITE_EEPROM 773 write_eprom_word(pegasus, 4, data); 774 #endif 775 } 776 } 777 pegasus->intr_interval = interval; 778 } 779 780 static void set_carrier(struct net_device *net) 781 { 782 pegasus_t *pegasus = netdev_priv(net); 783 u16 tmp; 784 785 if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) 786 return; 787 788 if (tmp & BMSR_LSTATUS) 789 netif_carrier_on(net); 790 else 791 netif_carrier_off(net); 792 } 793 794 static void free_all_urbs(pegasus_t *pegasus) 795 { 796 usb_free_urb(pegasus->intr_urb); 797 usb_free_urb(pegasus->tx_urb); 798 usb_free_urb(pegasus->rx_urb); 799 } 800 801 static void unlink_all_urbs(pegasus_t *pegasus) 802 { 803 usb_kill_urb(pegasus->intr_urb); 804 usb_kill_urb(pegasus->tx_urb); 805 usb_kill_urb(pegasus->rx_urb); 806 } 807 808 static int alloc_urbs(pegasus_t *pegasus) 809 { 810 int res = -ENOMEM; 811 812 pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); 813 if (!pegasus->rx_urb) { 814 return res; 815 } 816 pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); 817 if (!pegasus->tx_urb) { 818 usb_free_urb(pegasus->rx_urb); 819 return res; 820 } 821 pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); 822 if (!pegasus->intr_urb) { 823 usb_free_urb(pegasus->tx_urb); 824 usb_free_urb(pegasus->rx_urb); 825 return res; 826 } 827 828 return 0; 829 } 830 831 static int pegasus_open(struct net_device *net) 832 { 833 pegasus_t *pegasus = netdev_priv(net); 834 int res=-ENOMEM; 835 836 if (pegasus->rx_skb == NULL) 837 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, 838 PEGASUS_MTU, 839 GFP_KERNEL); 840 if (!pegasus->rx_skb) 841 goto exit; 842 843 res = set_registers(pegasus, EthID, 6, net->dev_addr); 844 845 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, 846 usb_rcvbulkpipe(pegasus->usb, 1), 847 pegasus->rx_skb->data, PEGASUS_MTU, 848 read_bulk_callback, pegasus); 849 if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { 850 if (res == -ENODEV) 851 netif_device_detach(pegasus->net); 852 netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res); 853 goto exit; 854 } 855 856 usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, 857 usb_rcvintpipe(pegasus->usb, 3), 858 pegasus->intr_buff, sizeof(pegasus->intr_buff), 859 intr_callback, pegasus, pegasus->intr_interval); 860 if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { 861 if (res == -ENODEV) 862 netif_device_detach(pegasus->net); 863 netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res); 864 usb_kill_urb(pegasus->rx_urb); 865 goto exit; 866 } 867 res = enable_net_traffic(net, pegasus->usb); 868 if (res < 0) { 869 netif_dbg(pegasus, ifup, net, 870 "can't enable_net_traffic() - %d\n", res); 871 res = -EIO; 872 usb_kill_urb(pegasus->rx_urb); 873 usb_kill_urb(pegasus->intr_urb); 874 goto exit; 875 } 876 set_carrier(net); 877 netif_start_queue(net); 878 netif_dbg(pegasus, ifup, net, "open\n"); 879 res = 0; 880 exit: 881 return res; 882 } 883 884 static int pegasus_close(struct net_device *net) 885 { 886 pegasus_t *pegasus = netdev_priv(net); 887 888 netif_stop_queue(net); 889 if (!(pegasus->flags & PEGASUS_UNPLUG)) 890 disable_net_traffic(pegasus); 891 tasklet_kill(&pegasus->rx_tl); 892 unlink_all_urbs(pegasus); 893 894 return 0; 895 } 896 897 static void pegasus_get_drvinfo(struct net_device *dev, 898 struct ethtool_drvinfo *info) 899 { 900 pegasus_t *pegasus = netdev_priv(dev); 901 902 strlcpy(info->driver, driver_name, sizeof(info->driver)); 903 strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); 904 usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info)); 905 } 906 907 /* also handles three patterns of some kind in hardware */ 908 #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) 909 910 static void 911 pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 912 { 913 pegasus_t *pegasus = netdev_priv(dev); 914 915 wol->supported = WAKE_MAGIC | WAKE_PHY; 916 wol->wolopts = pegasus->wolopts; 917 } 918 919 static int 920 pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 921 { 922 pegasus_t *pegasus = netdev_priv(dev); 923 u8 reg78 = 0x04; 924 int ret; 925 926 if (wol->wolopts & ~WOL_SUPPORTED) 927 return -EINVAL; 928 929 if (wol->wolopts & WAKE_MAGIC) 930 reg78 |= 0x80; 931 if (wol->wolopts & WAKE_PHY) 932 reg78 |= 0x40; 933 /* FIXME this 0x10 bit still needs to get set in the chip... */ 934 if (wol->wolopts) 935 pegasus->eth_regs[0] |= 0x10; 936 else 937 pegasus->eth_regs[0] &= ~0x10; 938 pegasus->wolopts = wol->wolopts; 939 940 ret = set_register(pegasus, WakeupControl, reg78); 941 if (!ret) 942 ret = device_set_wakeup_enable(&pegasus->usb->dev, 943 wol->wolopts); 944 return ret; 945 } 946 947 static inline void pegasus_reset_wol(struct net_device *dev) 948 { 949 struct ethtool_wolinfo wol; 950 951 memset(&wol, 0, sizeof wol); 952 (void) pegasus_set_wol(dev, &wol); 953 } 954 955 static int 956 pegasus_get_link_ksettings(struct net_device *dev, 957 struct ethtool_link_ksettings *ecmd) 958 { 959 pegasus_t *pegasus; 960 961 pegasus = netdev_priv(dev); 962 mii_ethtool_get_link_ksettings(&pegasus->mii, ecmd); 963 return 0; 964 } 965 966 static int 967 pegasus_set_link_ksettings(struct net_device *dev, 968 const struct ethtool_link_ksettings *ecmd) 969 { 970 pegasus_t *pegasus = netdev_priv(dev); 971 return mii_ethtool_set_link_ksettings(&pegasus->mii, ecmd); 972 } 973 974 static int pegasus_nway_reset(struct net_device *dev) 975 { 976 pegasus_t *pegasus = netdev_priv(dev); 977 return mii_nway_restart(&pegasus->mii); 978 } 979 980 static u32 pegasus_get_link(struct net_device *dev) 981 { 982 pegasus_t *pegasus = netdev_priv(dev); 983 return mii_link_ok(&pegasus->mii); 984 } 985 986 static u32 pegasus_get_msglevel(struct net_device *dev) 987 { 988 pegasus_t *pegasus = netdev_priv(dev); 989 return pegasus->msg_enable; 990 } 991 992 static void pegasus_set_msglevel(struct net_device *dev, u32 v) 993 { 994 pegasus_t *pegasus = netdev_priv(dev); 995 pegasus->msg_enable = v; 996 } 997 998 static const struct ethtool_ops ops = { 999 .get_drvinfo = pegasus_get_drvinfo, 1000 .nway_reset = pegasus_nway_reset, 1001 .get_link = pegasus_get_link, 1002 .get_msglevel = pegasus_get_msglevel, 1003 .set_msglevel = pegasus_set_msglevel, 1004 .get_wol = pegasus_get_wol, 1005 .set_wol = pegasus_set_wol, 1006 .get_link_ksettings = pegasus_get_link_ksettings, 1007 .set_link_ksettings = pegasus_set_link_ksettings, 1008 }; 1009 1010 static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) 1011 { 1012 __u16 *data = (__u16 *) &rq->ifr_ifru; 1013 pegasus_t *pegasus = netdev_priv(net); 1014 int res; 1015 1016 switch (cmd) { 1017 case SIOCDEVPRIVATE: 1018 data[0] = pegasus->phy; 1019 case SIOCDEVPRIVATE + 1: 1020 read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); 1021 res = 0; 1022 break; 1023 case SIOCDEVPRIVATE + 2: 1024 if (!capable(CAP_NET_ADMIN)) 1025 return -EPERM; 1026 write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]); 1027 res = 0; 1028 break; 1029 default: 1030 res = -EOPNOTSUPP; 1031 } 1032 return res; 1033 } 1034 1035 static void pegasus_set_multicast(struct net_device *net) 1036 { 1037 pegasus_t *pegasus = netdev_priv(net); 1038 1039 if (net->flags & IFF_PROMISC) { 1040 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; 1041 netif_info(pegasus, link, net, "Promiscuous mode enabled\n"); 1042 } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { 1043 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; 1044 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; 1045 netif_dbg(pegasus, link, net, "set allmulti\n"); 1046 } else { 1047 pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; 1048 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; 1049 } 1050 update_eth_regs_async(pegasus); 1051 } 1052 1053 static __u8 mii_phy_probe(pegasus_t *pegasus) 1054 { 1055 int i; 1056 __u16 tmp; 1057 1058 for (i = 0; i < 32; i++) { 1059 read_mii_word(pegasus, i, MII_BMSR, &tmp); 1060 if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) 1061 continue; 1062 else 1063 return i; 1064 } 1065 1066 return 0xff; 1067 } 1068 1069 static inline void setup_pegasus_II(pegasus_t *pegasus) 1070 { 1071 __u8 data = 0xa5; 1072 1073 set_register(pegasus, Reg1d, 0); 1074 set_register(pegasus, Reg7b, 1); 1075 mdelay(100); 1076 if ((pegasus->features & HAS_HOME_PNA) && mii_mode) 1077 set_register(pegasus, Reg7b, 0); 1078 else 1079 set_register(pegasus, Reg7b, 2); 1080 1081 set_register(pegasus, 0x83, data); 1082 get_registers(pegasus, 0x83, 1, &data); 1083 1084 if (data == 0xa5) 1085 pegasus->chip = 0x8513; 1086 else 1087 pegasus->chip = 0; 1088 1089 set_register(pegasus, 0x80, 0xc0); 1090 set_register(pegasus, 0x83, 0xff); 1091 set_register(pegasus, 0x84, 0x01); 1092 1093 if (pegasus->features & HAS_HOME_PNA && mii_mode) 1094 set_register(pegasus, Reg81, 6); 1095 else 1096 set_register(pegasus, Reg81, 2); 1097 } 1098 1099 1100 static int pegasus_count; 1101 static struct workqueue_struct *pegasus_workqueue; 1102 #define CARRIER_CHECK_DELAY (2 * HZ) 1103 1104 static void check_carrier(struct work_struct *work) 1105 { 1106 pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); 1107 set_carrier(pegasus->net); 1108 if (!(pegasus->flags & PEGASUS_UNPLUG)) { 1109 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, 1110 CARRIER_CHECK_DELAY); 1111 } 1112 } 1113 1114 static int pegasus_blacklisted(struct usb_device *udev) 1115 { 1116 struct usb_device_descriptor *udd = &udev->descriptor; 1117 1118 /* Special quirk to keep the driver from handling the Belkin Bluetooth 1119 * dongle which happens to have the same ID. 1120 */ 1121 if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) && 1122 (udd->idProduct == cpu_to_le16(0x0121)) && 1123 (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) && 1124 (udd->bDeviceProtocol == 1)) 1125 return 1; 1126 1127 return 0; 1128 } 1129 1130 /* we rely on probe() and remove() being serialized so we 1131 * don't need extra locking on pegasus_count. 1132 */ 1133 static void pegasus_dec_workqueue(void) 1134 { 1135 pegasus_count--; 1136 if (pegasus_count == 0) { 1137 destroy_workqueue(pegasus_workqueue); 1138 pegasus_workqueue = NULL; 1139 } 1140 } 1141 1142 static int pegasus_probe(struct usb_interface *intf, 1143 const struct usb_device_id *id) 1144 { 1145 struct usb_device *dev = interface_to_usbdev(intf); 1146 struct net_device *net; 1147 pegasus_t *pegasus; 1148 int dev_index = id - pegasus_ids; 1149 int res = -ENOMEM; 1150 1151 if (pegasus_blacklisted(dev)) 1152 return -ENODEV; 1153 1154 if (pegasus_count == 0) { 1155 pegasus_workqueue = alloc_workqueue("pegasus", WQ_MEM_RECLAIM, 1156 0); 1157 if (!pegasus_workqueue) 1158 return -ENOMEM; 1159 } 1160 pegasus_count++; 1161 1162 net = alloc_etherdev(sizeof(struct pegasus)); 1163 if (!net) 1164 goto out; 1165 1166 pegasus = netdev_priv(net); 1167 pegasus->dev_index = dev_index; 1168 1169 res = alloc_urbs(pegasus); 1170 if (res < 0) { 1171 dev_err(&intf->dev, "can't allocate %s\n", "urbs"); 1172 goto out1; 1173 } 1174 1175 tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); 1176 1177 INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); 1178 1179 pegasus->intf = intf; 1180 pegasus->usb = dev; 1181 pegasus->net = net; 1182 1183 1184 net->watchdog_timeo = PEGASUS_TX_TIMEOUT; 1185 net->netdev_ops = &pegasus_netdev_ops; 1186 net->ethtool_ops = &ops; 1187 pegasus->mii.dev = net; 1188 pegasus->mii.mdio_read = mdio_read; 1189 pegasus->mii.mdio_write = mdio_write; 1190 pegasus->mii.phy_id_mask = 0x1f; 1191 pegasus->mii.reg_num_mask = 0x1f; 1192 pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV 1193 | NETIF_MSG_PROBE | NETIF_MSG_LINK); 1194 1195 pegasus->features = usb_dev_id[dev_index].private; 1196 get_interrupt_interval(pegasus); 1197 if (reset_mac(pegasus)) { 1198 dev_err(&intf->dev, "can't reset MAC\n"); 1199 res = -EIO; 1200 goto out2; 1201 } 1202 set_ethernet_addr(pegasus); 1203 if (pegasus->features & PEGASUS_II) { 1204 dev_info(&intf->dev, "setup Pegasus II specific registers\n"); 1205 setup_pegasus_II(pegasus); 1206 } 1207 pegasus->phy = mii_phy_probe(pegasus); 1208 if (pegasus->phy == 0xff) { 1209 dev_warn(&intf->dev, "can't locate MII phy, using default\n"); 1210 pegasus->phy = 1; 1211 } 1212 pegasus->mii.phy_id = pegasus->phy; 1213 usb_set_intfdata(intf, pegasus); 1214 SET_NETDEV_DEV(net, &intf->dev); 1215 pegasus_reset_wol(net); 1216 res = register_netdev(net); 1217 if (res) 1218 goto out3; 1219 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, 1220 CARRIER_CHECK_DELAY); 1221 dev_info(&intf->dev, "%s, %s, %pM\n", net->name, 1222 usb_dev_id[dev_index].name, net->dev_addr); 1223 return 0; 1224 1225 out3: 1226 usb_set_intfdata(intf, NULL); 1227 out2: 1228 free_all_urbs(pegasus); 1229 out1: 1230 free_netdev(net); 1231 out: 1232 pegasus_dec_workqueue(); 1233 return res; 1234 } 1235 1236 static void pegasus_disconnect(struct usb_interface *intf) 1237 { 1238 struct pegasus *pegasus = usb_get_intfdata(intf); 1239 1240 usb_set_intfdata(intf, NULL); 1241 if (!pegasus) { 1242 dev_dbg(&intf->dev, "unregistering non-bound device?\n"); 1243 return; 1244 } 1245 1246 pegasus->flags |= PEGASUS_UNPLUG; 1247 cancel_delayed_work(&pegasus->carrier_check); 1248 unregister_netdev(pegasus->net); 1249 unlink_all_urbs(pegasus); 1250 free_all_urbs(pegasus); 1251 if (pegasus->rx_skb != NULL) { 1252 dev_kfree_skb(pegasus->rx_skb); 1253 pegasus->rx_skb = NULL; 1254 } 1255 free_netdev(pegasus->net); 1256 pegasus_dec_workqueue(); 1257 } 1258 1259 static int pegasus_suspend(struct usb_interface *intf, pm_message_t message) 1260 { 1261 struct pegasus *pegasus = usb_get_intfdata(intf); 1262 1263 netif_device_detach(pegasus->net); 1264 cancel_delayed_work(&pegasus->carrier_check); 1265 if (netif_running(pegasus->net)) { 1266 usb_kill_urb(pegasus->rx_urb); 1267 usb_kill_urb(pegasus->intr_urb); 1268 } 1269 return 0; 1270 } 1271 1272 static int pegasus_resume(struct usb_interface *intf) 1273 { 1274 struct pegasus *pegasus = usb_get_intfdata(intf); 1275 1276 netif_device_attach(pegasus->net); 1277 if (netif_running(pegasus->net)) { 1278 pegasus->rx_urb->status = 0; 1279 pegasus->rx_urb->actual_length = 0; 1280 read_bulk_callback(pegasus->rx_urb); 1281 1282 pegasus->intr_urb->status = 0; 1283 pegasus->intr_urb->actual_length = 0; 1284 intr_callback(pegasus->intr_urb); 1285 } 1286 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, 1287 CARRIER_CHECK_DELAY); 1288 return 0; 1289 } 1290 1291 static const struct net_device_ops pegasus_netdev_ops = { 1292 .ndo_open = pegasus_open, 1293 .ndo_stop = pegasus_close, 1294 .ndo_do_ioctl = pegasus_ioctl, 1295 .ndo_start_xmit = pegasus_start_xmit, 1296 .ndo_set_rx_mode = pegasus_set_multicast, 1297 .ndo_get_stats = pegasus_netdev_stats, 1298 .ndo_tx_timeout = pegasus_tx_timeout, 1299 .ndo_set_mac_address = eth_mac_addr, 1300 .ndo_validate_addr = eth_validate_addr, 1301 }; 1302 1303 static struct usb_driver pegasus_driver = { 1304 .name = driver_name, 1305 .probe = pegasus_probe, 1306 .disconnect = pegasus_disconnect, 1307 .id_table = pegasus_ids, 1308 .suspend = pegasus_suspend, 1309 .resume = pegasus_resume, 1310 .disable_hub_initiated_lpm = 1, 1311 }; 1312 1313 static void __init parse_id(char *id) 1314 { 1315 unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0; 1316 char *token, *name = NULL; 1317 1318 if ((token = strsep(&id, ":")) != NULL) 1319 name = token; 1320 /* name now points to a null terminated string*/ 1321 if ((token = strsep(&id, ":")) != NULL) 1322 vendor_id = simple_strtoul(token, NULL, 16); 1323 if ((token = strsep(&id, ":")) != NULL) 1324 device_id = simple_strtoul(token, NULL, 16); 1325 flags = simple_strtoul(id, NULL, 16); 1326 pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", 1327 driver_name, name, vendor_id, device_id, flags); 1328 1329 if (vendor_id > 0x10000 || vendor_id == 0) 1330 return; 1331 if (device_id > 0x10000 || device_id == 0) 1332 return; 1333 1334 for (i = 0; usb_dev_id[i].name; i++); 1335 usb_dev_id[i].name = name; 1336 usb_dev_id[i].vendor = vendor_id; 1337 usb_dev_id[i].device = device_id; 1338 usb_dev_id[i].private = flags; 1339 pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 1340 pegasus_ids[i].idVendor = vendor_id; 1341 pegasus_ids[i].idProduct = device_id; 1342 } 1343 1344 static int __init pegasus_init(void) 1345 { 1346 pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); 1347 if (devid) 1348 parse_id(devid); 1349 return usb_register(&pegasus_driver); 1350 } 1351 1352 static void __exit pegasus_exit(void) 1353 { 1354 usb_deregister(&pegasus_driver); 1355 } 1356 1357 module_init(pegasus_init); 1358 module_exit(pegasus_exit); 1359