1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 1999-2013 Petko Manolov (petkan@nucleusys.com) 4 * 5 * ChangeLog: 6 * .... Most of the time spent on reading sources & docs. 7 * v0.2.x First official release for the Linux kernel. 8 * v0.3.0 Beutified and structured, some bugs fixed. 9 * v0.3.x URBifying bulk requests and bugfixing. First relatively 10 * stable release. Still can touch device's registers only 11 * from top-halves. 12 * v0.4.0 Control messages remained unurbified are now URBs. 13 * Now we can touch the HW at any time. 14 * v0.4.9 Control urbs again use process context to wait. Argh... 15 * Some long standing bugs (enable_net_traffic) fixed. 16 * Also nasty trick about resubmiting control urb from 17 * interrupt context used. Please let me know how it 18 * behaves. Pegasus II support added since this version. 19 * TODO: suppressing HCD warnings spewage on disconnect. 20 * v0.4.13 Ethernet address is now set at probe(), not at open() 21 * time as this seems to break dhcpd. 22 * v0.5.0 branch to 2.5.x kernels 23 * v0.5.1 ethtool support added 24 * v0.5.5 rx socket buffers are in a pool and the their allocation 25 * is out of the interrupt routine. 26 * ... 27 * v0.9.3 simplified [get|set]_register(s), async update registers 28 * logic revisited, receive skb_pool removed. 29 */ 30 31 #include <linux/sched.h> 32 #include <linux/slab.h> 33 #include <linux/init.h> 34 #include <linux/delay.h> 35 #include <linux/netdevice.h> 36 #include <linux/etherdevice.h> 37 #include <linux/ethtool.h> 38 #include <linux/mii.h> 39 #include <linux/usb.h> 40 #include <linux/module.h> 41 #include <asm/byteorder.h> 42 #include <linux/uaccess.h> 43 #include "pegasus.h" 44 45 /* 46 * Version Information 47 */ 48 #define DRIVER_VERSION "v0.9.3 (2013/04/25)" 49 #define DRIVER_AUTHOR "Petko Manolov <petkan@nucleusys.com>" 50 #define DRIVER_DESC "Pegasus/Pegasus II USB Ethernet driver" 51 52 static const char driver_name[] = "pegasus"; 53 54 #undef PEGASUS_WRITE_EEPROM 55 #define BMSR_MEDIA (BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | \ 56 BMSR_100FULL | BMSR_ANEGCAPABLE) 57 #define CARRIER_CHECK_DELAY (2 * HZ) 58 59 static bool loopback; 60 static bool mii_mode; 61 static char *devid; 62 63 static struct usb_eth_dev usb_dev_id[] = { 64 #define PEGASUS_DEV(pn, vid, pid, flags) \ 65 {.name = pn, .vendor = vid, .device = pid, .private = flags}, 66 #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ 67 PEGASUS_DEV(pn, vid, pid, flags) 68 #include "pegasus.h" 69 #undef PEGASUS_DEV 70 #undef PEGASUS_DEV_CLASS 71 {NULL, 0, 0, 0}, 72 {NULL, 0, 0, 0} 73 }; 74 75 static struct usb_device_id pegasus_ids[] = { 76 #define PEGASUS_DEV(pn, vid, pid, flags) \ 77 {.match_flags = USB_DEVICE_ID_MATCH_DEVICE, .idVendor = vid, .idProduct = pid}, 78 /* 79 * The Belkin F8T012xx1 bluetooth adaptor has the same vendor and product 80 * IDs as the Belkin F5D5050, so we need to teach the pegasus driver to 81 * ignore adaptors belonging to the "Wireless" class 0xE0. For this one 82 * case anyway, seeing as the pegasus is for "Wired" adaptors. 83 */ 84 #define PEGASUS_DEV_CLASS(pn, vid, pid, dclass, flags) \ 85 {.match_flags = (USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_DEV_CLASS), \ 86 .idVendor = vid, .idProduct = pid, .bDeviceClass = dclass}, 87 #include "pegasus.h" 88 #undef PEGASUS_DEV 89 #undef PEGASUS_DEV_CLASS 90 {}, 91 {} 92 }; 93 94 MODULE_AUTHOR(DRIVER_AUTHOR); 95 MODULE_DESCRIPTION(DRIVER_DESC); 96 MODULE_LICENSE("GPL"); 97 module_param(loopback, bool, 0); 98 module_param(mii_mode, bool, 0); 99 module_param(devid, charp, 0); 100 MODULE_PARM_DESC(loopback, "Enable MAC loopback mode (bit 0)"); 101 MODULE_PARM_DESC(mii_mode, "Enable HomePNA mode (bit 0),default=MII mode = 0"); 102 MODULE_PARM_DESC(devid, "The format is: 'DEV_name:VendorID:DeviceID:Flags'"); 103 104 /* use ethtool to change the level for any given device */ 105 static int msg_level = -1; 106 module_param(msg_level, int, 0); 107 MODULE_PARM_DESC(msg_level, "Override default message level"); 108 109 MODULE_DEVICE_TABLE(usb, pegasus_ids); 110 static const struct net_device_ops pegasus_netdev_ops; 111 112 /*****/ 113 114 static void async_ctrl_callback(struct urb *urb) 115 { 116 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; 117 int status = urb->status; 118 119 if (status < 0) 120 dev_dbg(&urb->dev->dev, "%s failed with %d", __func__, status); 121 kfree(req); 122 usb_free_urb(urb); 123 } 124 125 static int get_registers(pegasus_t *pegasus, __u16 indx, __u16 size, void *data) 126 { 127 return usb_control_msg_recv(pegasus->usb, 0, PEGASUS_REQ_GET_REGS, 128 PEGASUS_REQT_READ, 0, indx, data, size, 129 1000, GFP_NOIO); 130 } 131 132 static int set_registers(pegasus_t *pegasus, __u16 indx, __u16 size, 133 const void *data) 134 { 135 return usb_control_msg_send(pegasus->usb, 0, PEGASUS_REQ_SET_REGS, 136 PEGASUS_REQT_WRITE, 0, indx, data, size, 137 1000, GFP_NOIO); 138 } 139 140 /* 141 * There is only one way to write to a single ADM8511 register and this is via 142 * specific control request. 'data' is ignored by the device, but it is here to 143 * not break the API. 144 */ 145 static int set_register(pegasus_t *pegasus, __u16 indx, __u8 data) 146 { 147 void *buf = &data; 148 149 return usb_control_msg_send(pegasus->usb, 0, PEGASUS_REQ_SET_REG, 150 PEGASUS_REQT_WRITE, data, indx, buf, 1, 151 1000, GFP_NOIO); 152 } 153 154 static int update_eth_regs_async(pegasus_t *pegasus) 155 { 156 int ret = -ENOMEM; 157 struct urb *async_urb; 158 struct usb_ctrlrequest *req; 159 160 req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); 161 if (req == NULL) 162 return ret; 163 164 async_urb = usb_alloc_urb(0, GFP_ATOMIC); 165 if (async_urb == NULL) { 166 kfree(req); 167 return ret; 168 } 169 req->bRequestType = PEGASUS_REQT_WRITE; 170 req->bRequest = PEGASUS_REQ_SET_REGS; 171 req->wValue = cpu_to_le16(0); 172 req->wIndex = cpu_to_le16(EthCtrl0); 173 req->wLength = cpu_to_le16(3); 174 175 usb_fill_control_urb(async_urb, pegasus->usb, 176 usb_sndctrlpipe(pegasus->usb, 0), (void *)req, 177 pegasus->eth_regs, 3, async_ctrl_callback, req); 178 179 ret = usb_submit_urb(async_urb, GFP_ATOMIC); 180 if (ret) { 181 if (ret == -ENODEV) 182 netif_device_detach(pegasus->net); 183 netif_err(pegasus, drv, pegasus->net, 184 "%s returned %d\n", __func__, ret); 185 } 186 return ret; 187 } 188 189 static int __mii_op(pegasus_t *p, __u8 phy, __u8 indx, __u16 *regd, __u8 cmd) 190 { 191 int i; 192 __u8 data[4] = { phy, 0, 0, indx }; 193 __le16 regdi; 194 int ret = -ETIMEDOUT; 195 196 if (cmd & PHY_WRITE) { 197 __le16 *t = (__le16 *) & data[1]; 198 *t = cpu_to_le16(*regd); 199 } 200 set_register(p, PhyCtrl, 0); 201 set_registers(p, PhyAddr, sizeof(data), data); 202 set_register(p, PhyCtrl, (indx | cmd)); 203 for (i = 0; i < REG_TIMEOUT; i++) { 204 ret = get_registers(p, PhyCtrl, 1, data); 205 if (ret < 0) 206 goto fail; 207 if (data[0] & PHY_DONE) 208 break; 209 } 210 if (i >= REG_TIMEOUT) 211 goto fail; 212 if (cmd & PHY_READ) { 213 ret = get_registers(p, PhyData, 2, ®di); 214 *regd = le16_to_cpu(regdi); 215 return ret; 216 } 217 return 0; 218 fail: 219 netif_dbg(p, drv, p->net, "%s failed\n", __func__); 220 return ret; 221 } 222 223 /* Returns non-negative int on success, error on failure */ 224 static int read_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) 225 { 226 return __mii_op(pegasus, phy, indx, regd, PHY_READ); 227 } 228 229 /* Returns zero on success, error on failure */ 230 static int write_mii_word(pegasus_t *pegasus, __u8 phy, __u8 indx, __u16 *regd) 231 { 232 return __mii_op(pegasus, phy, indx, regd, PHY_WRITE); 233 } 234 235 static int mdio_read(struct net_device *dev, int phy_id, int loc) 236 { 237 pegasus_t *pegasus = netdev_priv(dev); 238 u16 res; 239 240 read_mii_word(pegasus, phy_id, loc, &res); 241 return (int)res; 242 } 243 244 static void mdio_write(struct net_device *dev, int phy_id, int loc, int val) 245 { 246 pegasus_t *pegasus = netdev_priv(dev); 247 u16 data = val; 248 249 write_mii_word(pegasus, phy_id, loc, &data); 250 } 251 252 static int read_eprom_word(pegasus_t *pegasus, __u8 index, __u16 *retdata) 253 { 254 int i; 255 __u8 tmp = 0; 256 __le16 retdatai; 257 int ret; 258 259 set_register(pegasus, EpromCtrl, 0); 260 set_register(pegasus, EpromOffset, index); 261 set_register(pegasus, EpromCtrl, EPROM_READ); 262 263 for (i = 0; i < REG_TIMEOUT; i++) { 264 ret = get_registers(pegasus, EpromCtrl, 1, &tmp); 265 if (tmp & EPROM_DONE) 266 break; 267 if (ret == -ESHUTDOWN) 268 goto fail; 269 } 270 if (i >= REG_TIMEOUT) 271 goto fail; 272 273 ret = get_registers(pegasus, EpromData, 2, &retdatai); 274 *retdata = le16_to_cpu(retdatai); 275 return ret; 276 277 fail: 278 netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); 279 return -ETIMEDOUT; 280 } 281 282 #ifdef PEGASUS_WRITE_EEPROM 283 static inline void enable_eprom_write(pegasus_t *pegasus) 284 { 285 __u8 tmp; 286 287 get_registers(pegasus, EthCtrl2, 1, &tmp); 288 set_register(pegasus, EthCtrl2, tmp | EPROM_WR_ENABLE); 289 } 290 291 static inline void disable_eprom_write(pegasus_t *pegasus) 292 { 293 __u8 tmp; 294 295 get_registers(pegasus, EthCtrl2, 1, &tmp); 296 set_register(pegasus, EpromCtrl, 0); 297 set_register(pegasus, EthCtrl2, tmp & ~EPROM_WR_ENABLE); 298 } 299 300 static int write_eprom_word(pegasus_t *pegasus, __u8 index, __u16 data) 301 { 302 int i; 303 __u8 tmp, d[4] = { 0x3f, 0, 0, EPROM_WRITE }; 304 int ret; 305 __le16 le_data = cpu_to_le16(data); 306 307 set_registers(pegasus, EpromOffset, 4, d); 308 enable_eprom_write(pegasus); 309 set_register(pegasus, EpromOffset, index); 310 set_registers(pegasus, EpromData, 2, &le_data); 311 set_register(pegasus, EpromCtrl, EPROM_WRITE); 312 313 for (i = 0; i < REG_TIMEOUT; i++) { 314 ret = get_registers(pegasus, EpromCtrl, 1, &tmp); 315 if (ret == -ESHUTDOWN) 316 goto fail; 317 if (tmp & EPROM_DONE) 318 break; 319 } 320 disable_eprom_write(pegasus); 321 if (i >= REG_TIMEOUT) 322 goto fail; 323 324 return ret; 325 326 fail: 327 netif_warn(pegasus, drv, pegasus->net, "%s failed\n", __func__); 328 return -ETIMEDOUT; 329 } 330 #endif /* PEGASUS_WRITE_EEPROM */ 331 332 static inline int get_node_id(pegasus_t *pegasus, u8 *id) 333 { 334 int i, ret; 335 u16 w16; 336 337 for (i = 0; i < 3; i++) { 338 ret = read_eprom_word(pegasus, i, &w16); 339 if (ret < 0) 340 return ret; 341 ((__le16 *) id)[i] = cpu_to_le16(w16); 342 } 343 344 return 0; 345 } 346 347 static void set_ethernet_addr(pegasus_t *pegasus) 348 { 349 int ret; 350 u8 node_id[6]; 351 352 if (pegasus->features & PEGASUS_II) { 353 ret = get_registers(pegasus, 0x10, sizeof(node_id), node_id); 354 if (ret < 0) 355 goto err; 356 } else { 357 ret = get_node_id(pegasus, node_id); 358 if (ret < 0) 359 goto err; 360 ret = set_registers(pegasus, EthID, sizeof(node_id), node_id); 361 if (ret < 0) 362 goto err; 363 } 364 365 memcpy(pegasus->net->dev_addr, node_id, sizeof(node_id)); 366 367 return; 368 err: 369 eth_hw_addr_random(pegasus->net); 370 dev_info(&pegasus->intf->dev, "software assigned MAC address.\n"); 371 372 return; 373 } 374 375 static inline int reset_mac(pegasus_t *pegasus) 376 { 377 __u8 data = 0x8; 378 int i; 379 380 set_register(pegasus, EthCtrl1, data); 381 for (i = 0; i < REG_TIMEOUT; i++) { 382 get_registers(pegasus, EthCtrl1, 1, &data); 383 if (~data & 0x08) { 384 if (loopback) 385 break; 386 if (mii_mode && (pegasus->features & HAS_HOME_PNA)) 387 set_register(pegasus, Gpio1, 0x34); 388 else 389 set_register(pegasus, Gpio1, 0x26); 390 set_register(pegasus, Gpio0, pegasus->features); 391 set_register(pegasus, Gpio0, DEFAULT_GPIO_SET); 392 break; 393 } 394 } 395 if (i == REG_TIMEOUT) 396 return -ETIMEDOUT; 397 398 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || 399 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { 400 set_register(pegasus, Gpio0, 0x24); 401 set_register(pegasus, Gpio0, 0x26); 402 } 403 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_ELCON) { 404 __u16 auxmode; 405 read_mii_word(pegasus, 3, 0x1b, &auxmode); 406 auxmode |= 4; 407 write_mii_word(pegasus, 3, 0x1b, &auxmode); 408 } 409 410 return 0; 411 } 412 413 static int enable_net_traffic(struct net_device *dev, struct usb_device *usb) 414 { 415 __u16 linkpart; 416 __u8 data[4]; 417 pegasus_t *pegasus = netdev_priv(dev); 418 int ret; 419 420 read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart); 421 data[0] = 0xc8; /* TX & RX enable, append status, no CRC */ 422 data[1] = 0; 423 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL)) 424 data[1] |= 0x20; /* set full duplex */ 425 if (linkpart & (ADVERTISE_100FULL | ADVERTISE_100HALF)) 426 data[1] |= 0x10; /* set 100 Mbps */ 427 if (mii_mode) 428 data[1] = 0; 429 data[2] = loopback ? 0x09 : 0x01; 430 431 memcpy(pegasus->eth_regs, data, sizeof(data)); 432 ret = set_registers(pegasus, EthCtrl0, 3, data); 433 434 if (usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS || 435 usb_dev_id[pegasus->dev_index].vendor == VENDOR_LINKSYS2 || 436 usb_dev_id[pegasus->dev_index].vendor == VENDOR_DLINK) { 437 u16 auxmode; 438 read_mii_word(pegasus, 0, 0x1b, &auxmode); 439 auxmode |= 4; 440 write_mii_word(pegasus, 0, 0x1b, &auxmode); 441 } 442 443 return ret; 444 } 445 446 static void read_bulk_callback(struct urb *urb) 447 { 448 pegasus_t *pegasus = urb->context; 449 struct net_device *net; 450 int rx_status, count = urb->actual_length; 451 int status = urb->status; 452 u8 *buf = urb->transfer_buffer; 453 __u16 pkt_len; 454 455 if (!pegasus) 456 return; 457 458 net = pegasus->net; 459 if (!netif_device_present(net) || !netif_running(net)) 460 return; 461 462 switch (status) { 463 case 0: 464 break; 465 case -ETIME: 466 netif_dbg(pegasus, rx_err, net, "reset MAC\n"); 467 pegasus->flags &= ~PEGASUS_RX_BUSY; 468 break; 469 case -EPIPE: /* stall, or disconnect from TT */ 470 /* FIXME schedule work to clear the halt */ 471 netif_warn(pegasus, rx_err, net, "no rx stall recovery\n"); 472 return; 473 case -ENOENT: 474 case -ECONNRESET: 475 case -ESHUTDOWN: 476 netif_dbg(pegasus, ifdown, net, "rx unlink, %d\n", status); 477 return; 478 default: 479 netif_dbg(pegasus, rx_err, net, "RX status %d\n", status); 480 goto goon; 481 } 482 483 if (count < 4) 484 goto goon; 485 486 rx_status = buf[count - 2]; 487 if (rx_status & 0x1e) { 488 netif_dbg(pegasus, rx_err, net, 489 "RX packet error %x\n", rx_status); 490 net->stats.rx_errors++; 491 if (rx_status & 0x06) /* long or runt */ 492 net->stats.rx_length_errors++; 493 if (rx_status & 0x08) 494 net->stats.rx_crc_errors++; 495 if (rx_status & 0x10) /* extra bits */ 496 net->stats.rx_frame_errors++; 497 goto goon; 498 } 499 if (pegasus->chip == 0x8513) { 500 pkt_len = le32_to_cpu(*(__le32 *)urb->transfer_buffer); 501 pkt_len &= 0x0fff; 502 pegasus->rx_skb->data += 2; 503 } else { 504 pkt_len = buf[count - 3] << 8; 505 pkt_len += buf[count - 4]; 506 pkt_len &= 0xfff; 507 pkt_len -= 4; 508 } 509 510 /* 511 * If the packet is unreasonably long, quietly drop it rather than 512 * kernel panicing by calling skb_put. 513 */ 514 if (pkt_len > PEGASUS_MTU) 515 goto goon; 516 517 /* 518 * at this point we are sure pegasus->rx_skb != NULL 519 * so we go ahead and pass up the packet. 520 */ 521 skb_put(pegasus->rx_skb, pkt_len); 522 pegasus->rx_skb->protocol = eth_type_trans(pegasus->rx_skb, net); 523 netif_rx(pegasus->rx_skb); 524 net->stats.rx_packets++; 525 net->stats.rx_bytes += pkt_len; 526 527 if (pegasus->flags & PEGASUS_UNPLUG) 528 return; 529 530 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, PEGASUS_MTU, 531 GFP_ATOMIC); 532 533 if (pegasus->rx_skb == NULL) 534 goto tl_sched; 535 goon: 536 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, 537 usb_rcvbulkpipe(pegasus->usb, 1), 538 pegasus->rx_skb->data, PEGASUS_MTU, 539 read_bulk_callback, pegasus); 540 rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); 541 if (rx_status == -ENODEV) 542 netif_device_detach(pegasus->net); 543 else if (rx_status) { 544 pegasus->flags |= PEGASUS_RX_URB_FAIL; 545 goto tl_sched; 546 } else { 547 pegasus->flags &= ~PEGASUS_RX_URB_FAIL; 548 } 549 550 return; 551 552 tl_sched: 553 tasklet_schedule(&pegasus->rx_tl); 554 } 555 556 static void rx_fixup(struct tasklet_struct *t) 557 { 558 pegasus_t *pegasus = from_tasklet(pegasus, t, rx_tl); 559 int status; 560 561 if (pegasus->flags & PEGASUS_UNPLUG) 562 return; 563 564 if (pegasus->flags & PEGASUS_RX_URB_FAIL) 565 if (pegasus->rx_skb) 566 goto try_again; 567 if (pegasus->rx_skb == NULL) 568 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, 569 PEGASUS_MTU, 570 GFP_ATOMIC); 571 if (pegasus->rx_skb == NULL) { 572 netif_warn(pegasus, rx_err, pegasus->net, "low on memory\n"); 573 tasklet_schedule(&pegasus->rx_tl); 574 return; 575 } 576 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, 577 usb_rcvbulkpipe(pegasus->usb, 1), 578 pegasus->rx_skb->data, PEGASUS_MTU, 579 read_bulk_callback, pegasus); 580 try_again: 581 status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC); 582 if (status == -ENODEV) 583 netif_device_detach(pegasus->net); 584 else if (status) { 585 pegasus->flags |= PEGASUS_RX_URB_FAIL; 586 tasklet_schedule(&pegasus->rx_tl); 587 } else { 588 pegasus->flags &= ~PEGASUS_RX_URB_FAIL; 589 } 590 } 591 592 static void write_bulk_callback(struct urb *urb) 593 { 594 pegasus_t *pegasus = urb->context; 595 struct net_device *net; 596 int status = urb->status; 597 598 if (!pegasus) 599 return; 600 601 net = pegasus->net; 602 603 if (!netif_device_present(net) || !netif_running(net)) 604 return; 605 606 switch (status) { 607 case -EPIPE: 608 /* FIXME schedule_work() to clear the tx halt */ 609 netif_stop_queue(net); 610 netif_warn(pegasus, tx_err, net, "no tx stall recovery\n"); 611 return; 612 case -ENOENT: 613 case -ECONNRESET: 614 case -ESHUTDOWN: 615 netif_dbg(pegasus, ifdown, net, "tx unlink, %d\n", status); 616 return; 617 default: 618 netif_info(pegasus, tx_err, net, "TX status %d\n", status); 619 fallthrough; 620 case 0: 621 break; 622 } 623 624 netif_trans_update(net); /* prevent tx timeout */ 625 netif_wake_queue(net); 626 } 627 628 static void intr_callback(struct urb *urb) 629 { 630 pegasus_t *pegasus = urb->context; 631 struct net_device *net; 632 int res, status = urb->status; 633 634 if (!pegasus) 635 return; 636 net = pegasus->net; 637 638 switch (status) { 639 case 0: 640 break; 641 case -ECONNRESET: /* unlink */ 642 case -ENOENT: 643 case -ESHUTDOWN: 644 return; 645 default: 646 /* some Pegasus-I products report LOTS of data 647 * toggle errors... avoid log spamming 648 */ 649 netif_dbg(pegasus, timer, net, "intr status %d\n", status); 650 } 651 652 if (urb->actual_length >= 6) { 653 u8 *d = urb->transfer_buffer; 654 655 /* byte 0 == tx_status1, reg 2B */ 656 if (d[0] & (TX_UNDERRUN|EXCESSIVE_COL 657 |LATE_COL|JABBER_TIMEOUT)) { 658 net->stats.tx_errors++; 659 if (d[0] & TX_UNDERRUN) 660 net->stats.tx_fifo_errors++; 661 if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) 662 net->stats.tx_aborted_errors++; 663 if (d[0] & LATE_COL) 664 net->stats.tx_window_errors++; 665 } 666 667 /* d[5].LINK_STATUS lies on some adapters. 668 * d[0].NO_CARRIER kicks in only with failed TX. 669 * ... so monitoring with MII may be safest. 670 */ 671 672 /* bytes 3-4 == rx_lostpkt, reg 2E/2F */ 673 net->stats.rx_missed_errors += ((d[3] & 0x7f) << 8) | d[4]; 674 } 675 676 res = usb_submit_urb(urb, GFP_ATOMIC); 677 if (res == -ENODEV) 678 netif_device_detach(pegasus->net); 679 if (res) 680 netif_err(pegasus, timer, net, 681 "can't resubmit interrupt urb, %d\n", res); 682 } 683 684 static void pegasus_tx_timeout(struct net_device *net, unsigned int txqueue) 685 { 686 pegasus_t *pegasus = netdev_priv(net); 687 netif_warn(pegasus, timer, net, "tx timeout\n"); 688 usb_unlink_urb(pegasus->tx_urb); 689 net->stats.tx_errors++; 690 } 691 692 static netdev_tx_t pegasus_start_xmit(struct sk_buff *skb, 693 struct net_device *net) 694 { 695 pegasus_t *pegasus = netdev_priv(net); 696 int count = ((skb->len + 2) & 0x3f) ? skb->len + 2 : skb->len + 3; 697 int res; 698 __u16 l16 = skb->len; 699 700 netif_stop_queue(net); 701 702 ((__le16 *) pegasus->tx_buff)[0] = cpu_to_le16(l16); 703 skb_copy_from_linear_data(skb, pegasus->tx_buff + 2, skb->len); 704 usb_fill_bulk_urb(pegasus->tx_urb, pegasus->usb, 705 usb_sndbulkpipe(pegasus->usb, 2), 706 pegasus->tx_buff, count, 707 write_bulk_callback, pegasus); 708 if ((res = usb_submit_urb(pegasus->tx_urb, GFP_ATOMIC))) { 709 netif_warn(pegasus, tx_err, net, "fail tx, %d\n", res); 710 switch (res) { 711 case -EPIPE: /* stall, or disconnect from TT */ 712 /* cleanup should already have been scheduled */ 713 break; 714 case -ENODEV: /* disconnect() upcoming */ 715 case -EPERM: 716 netif_device_detach(pegasus->net); 717 break; 718 default: 719 net->stats.tx_errors++; 720 netif_start_queue(net); 721 } 722 } else { 723 net->stats.tx_packets++; 724 net->stats.tx_bytes += skb->len; 725 } 726 dev_kfree_skb(skb); 727 728 return NETDEV_TX_OK; 729 } 730 731 static inline void disable_net_traffic(pegasus_t *pegasus) 732 { 733 __le16 tmp = cpu_to_le16(0); 734 735 set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp); 736 } 737 738 static inline void get_interrupt_interval(pegasus_t *pegasus) 739 { 740 u16 data; 741 u8 interval; 742 743 read_eprom_word(pegasus, 4, &data); 744 interval = data >> 8; 745 if (pegasus->usb->speed != USB_SPEED_HIGH) { 746 if (interval < 0x80) { 747 netif_info(pegasus, timer, pegasus->net, 748 "intr interval changed from %ums to %ums\n", 749 interval, 0x80); 750 interval = 0x80; 751 data = (data & 0x00FF) | ((u16)interval << 8); 752 #ifdef PEGASUS_WRITE_EEPROM 753 write_eprom_word(pegasus, 4, data); 754 #endif 755 } 756 } 757 pegasus->intr_interval = interval; 758 } 759 760 static void set_carrier(struct net_device *net) 761 { 762 pegasus_t *pegasus = netdev_priv(net); 763 u16 tmp; 764 765 if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) 766 return; 767 768 if (tmp & BMSR_LSTATUS) 769 netif_carrier_on(net); 770 else 771 netif_carrier_off(net); 772 } 773 774 static void free_all_urbs(pegasus_t *pegasus) 775 { 776 usb_free_urb(pegasus->intr_urb); 777 usb_free_urb(pegasus->tx_urb); 778 usb_free_urb(pegasus->rx_urb); 779 } 780 781 static void unlink_all_urbs(pegasus_t *pegasus) 782 { 783 usb_kill_urb(pegasus->intr_urb); 784 usb_kill_urb(pegasus->tx_urb); 785 usb_kill_urb(pegasus->rx_urb); 786 } 787 788 static int alloc_urbs(pegasus_t *pegasus) 789 { 790 int res = -ENOMEM; 791 792 pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); 793 if (!pegasus->rx_urb) { 794 return res; 795 } 796 pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); 797 if (!pegasus->tx_urb) { 798 usb_free_urb(pegasus->rx_urb); 799 return res; 800 } 801 pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); 802 if (!pegasus->intr_urb) { 803 usb_free_urb(pegasus->tx_urb); 804 usb_free_urb(pegasus->rx_urb); 805 return res; 806 } 807 808 return 0; 809 } 810 811 static int pegasus_open(struct net_device *net) 812 { 813 pegasus_t *pegasus = netdev_priv(net); 814 int res=-ENOMEM; 815 816 if (pegasus->rx_skb == NULL) 817 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, 818 PEGASUS_MTU, 819 GFP_KERNEL); 820 if (!pegasus->rx_skb) 821 goto exit; 822 823 res = set_registers(pegasus, EthID, 6, net->dev_addr); 824 825 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, 826 usb_rcvbulkpipe(pegasus->usb, 1), 827 pegasus->rx_skb->data, PEGASUS_MTU, 828 read_bulk_callback, pegasus); 829 if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { 830 if (res == -ENODEV) 831 netif_device_detach(pegasus->net); 832 netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res); 833 goto exit; 834 } 835 836 usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, 837 usb_rcvintpipe(pegasus->usb, 3), 838 pegasus->intr_buff, sizeof(pegasus->intr_buff), 839 intr_callback, pegasus, pegasus->intr_interval); 840 if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { 841 if (res == -ENODEV) 842 netif_device_detach(pegasus->net); 843 netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res); 844 usb_kill_urb(pegasus->rx_urb); 845 goto exit; 846 } 847 res = enable_net_traffic(net, pegasus->usb); 848 if (res < 0) { 849 netif_dbg(pegasus, ifup, net, 850 "can't enable_net_traffic() - %d\n", res); 851 res = -EIO; 852 usb_kill_urb(pegasus->rx_urb); 853 usb_kill_urb(pegasus->intr_urb); 854 goto exit; 855 } 856 set_carrier(net); 857 netif_start_queue(net); 858 netif_dbg(pegasus, ifup, net, "open\n"); 859 res = 0; 860 exit: 861 return res; 862 } 863 864 static int pegasus_close(struct net_device *net) 865 { 866 pegasus_t *pegasus = netdev_priv(net); 867 868 netif_stop_queue(net); 869 if (!(pegasus->flags & PEGASUS_UNPLUG)) 870 disable_net_traffic(pegasus); 871 tasklet_kill(&pegasus->rx_tl); 872 unlink_all_urbs(pegasus); 873 874 return 0; 875 } 876 877 static void pegasus_get_drvinfo(struct net_device *dev, 878 struct ethtool_drvinfo *info) 879 { 880 pegasus_t *pegasus = netdev_priv(dev); 881 882 strlcpy(info->driver, driver_name, sizeof(info->driver)); 883 strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); 884 usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info)); 885 } 886 887 /* also handles three patterns of some kind in hardware */ 888 #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) 889 890 static void 891 pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 892 { 893 pegasus_t *pegasus = netdev_priv(dev); 894 895 wol->supported = WAKE_MAGIC | WAKE_PHY; 896 wol->wolopts = pegasus->wolopts; 897 } 898 899 static int 900 pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 901 { 902 pegasus_t *pegasus = netdev_priv(dev); 903 u8 reg78 = 0x04; 904 int ret; 905 906 if (wol->wolopts & ~WOL_SUPPORTED) 907 return -EINVAL; 908 909 if (wol->wolopts & WAKE_MAGIC) 910 reg78 |= 0x80; 911 if (wol->wolopts & WAKE_PHY) 912 reg78 |= 0x40; 913 /* FIXME this 0x10 bit still needs to get set in the chip... */ 914 if (wol->wolopts) 915 pegasus->eth_regs[0] |= 0x10; 916 else 917 pegasus->eth_regs[0] &= ~0x10; 918 pegasus->wolopts = wol->wolopts; 919 920 ret = set_register(pegasus, WakeupControl, reg78); 921 if (!ret) 922 ret = device_set_wakeup_enable(&pegasus->usb->dev, 923 wol->wolopts); 924 return ret; 925 } 926 927 static inline void pegasus_reset_wol(struct net_device *dev) 928 { 929 struct ethtool_wolinfo wol; 930 931 memset(&wol, 0, sizeof wol); 932 (void) pegasus_set_wol(dev, &wol); 933 } 934 935 static int 936 pegasus_get_link_ksettings(struct net_device *dev, 937 struct ethtool_link_ksettings *ecmd) 938 { 939 pegasus_t *pegasus; 940 941 pegasus = netdev_priv(dev); 942 mii_ethtool_get_link_ksettings(&pegasus->mii, ecmd); 943 return 0; 944 } 945 946 static int 947 pegasus_set_link_ksettings(struct net_device *dev, 948 const struct ethtool_link_ksettings *ecmd) 949 { 950 pegasus_t *pegasus = netdev_priv(dev); 951 return mii_ethtool_set_link_ksettings(&pegasus->mii, ecmd); 952 } 953 954 static int pegasus_nway_reset(struct net_device *dev) 955 { 956 pegasus_t *pegasus = netdev_priv(dev); 957 return mii_nway_restart(&pegasus->mii); 958 } 959 960 static u32 pegasus_get_link(struct net_device *dev) 961 { 962 pegasus_t *pegasus = netdev_priv(dev); 963 return mii_link_ok(&pegasus->mii); 964 } 965 966 static u32 pegasus_get_msglevel(struct net_device *dev) 967 { 968 pegasus_t *pegasus = netdev_priv(dev); 969 return pegasus->msg_enable; 970 } 971 972 static void pegasus_set_msglevel(struct net_device *dev, u32 v) 973 { 974 pegasus_t *pegasus = netdev_priv(dev); 975 pegasus->msg_enable = v; 976 } 977 978 static const struct ethtool_ops ops = { 979 .get_drvinfo = pegasus_get_drvinfo, 980 .nway_reset = pegasus_nway_reset, 981 .get_link = pegasus_get_link, 982 .get_msglevel = pegasus_get_msglevel, 983 .set_msglevel = pegasus_set_msglevel, 984 .get_wol = pegasus_get_wol, 985 .set_wol = pegasus_set_wol, 986 .get_link_ksettings = pegasus_get_link_ksettings, 987 .set_link_ksettings = pegasus_set_link_ksettings, 988 }; 989 990 static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) 991 { 992 __u16 *data = (__u16 *) &rq->ifr_ifru; 993 pegasus_t *pegasus = netdev_priv(net); 994 int res; 995 996 switch (cmd) { 997 case SIOCDEVPRIVATE: 998 data[0] = pegasus->phy; 999 fallthrough; 1000 case SIOCDEVPRIVATE + 1: 1001 read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); 1002 res = 0; 1003 break; 1004 case SIOCDEVPRIVATE + 2: 1005 if (!capable(CAP_NET_ADMIN)) 1006 return -EPERM; 1007 write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]); 1008 res = 0; 1009 break; 1010 default: 1011 res = -EOPNOTSUPP; 1012 } 1013 return res; 1014 } 1015 1016 static void pegasus_set_multicast(struct net_device *net) 1017 { 1018 pegasus_t *pegasus = netdev_priv(net); 1019 1020 if (net->flags & IFF_PROMISC) { 1021 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; 1022 netif_info(pegasus, link, net, "Promiscuous mode enabled\n"); 1023 } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { 1024 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; 1025 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; 1026 netif_dbg(pegasus, link, net, "set allmulti\n"); 1027 } else { 1028 pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; 1029 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; 1030 } 1031 update_eth_regs_async(pegasus); 1032 } 1033 1034 static __u8 mii_phy_probe(pegasus_t *pegasus) 1035 { 1036 int i; 1037 __u16 tmp; 1038 1039 for (i = 0; i < 32; i++) { 1040 read_mii_word(pegasus, i, MII_BMSR, &tmp); 1041 if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) 1042 continue; 1043 else 1044 return i; 1045 } 1046 1047 return 0xff; 1048 } 1049 1050 static inline void setup_pegasus_II(pegasus_t *pegasus) 1051 { 1052 __u8 data = 0xa5; 1053 1054 set_register(pegasus, Reg1d, 0); 1055 set_register(pegasus, Reg7b, 1); 1056 msleep(100); 1057 if ((pegasus->features & HAS_HOME_PNA) && mii_mode) 1058 set_register(pegasus, Reg7b, 0); 1059 else 1060 set_register(pegasus, Reg7b, 2); 1061 1062 set_register(pegasus, 0x83, data); 1063 get_registers(pegasus, 0x83, 1, &data); 1064 1065 if (data == 0xa5) 1066 pegasus->chip = 0x8513; 1067 else 1068 pegasus->chip = 0; 1069 1070 set_register(pegasus, 0x80, 0xc0); 1071 set_register(pegasus, 0x83, 0xff); 1072 set_register(pegasus, 0x84, 0x01); 1073 1074 if (pegasus->features & HAS_HOME_PNA && mii_mode) 1075 set_register(pegasus, Reg81, 6); 1076 else 1077 set_register(pegasus, Reg81, 2); 1078 } 1079 1080 static void check_carrier(struct work_struct *work) 1081 { 1082 pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); 1083 set_carrier(pegasus->net); 1084 if (!(pegasus->flags & PEGASUS_UNPLUG)) { 1085 queue_delayed_work(system_long_wq, &pegasus->carrier_check, 1086 CARRIER_CHECK_DELAY); 1087 } 1088 } 1089 1090 static int pegasus_blacklisted(struct usb_device *udev) 1091 { 1092 struct usb_device_descriptor *udd = &udev->descriptor; 1093 1094 /* Special quirk to keep the driver from handling the Belkin Bluetooth 1095 * dongle which happens to have the same ID. 1096 */ 1097 if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) && 1098 (udd->idProduct == cpu_to_le16(0x0121)) && 1099 (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) && 1100 (udd->bDeviceProtocol == 1)) 1101 return 1; 1102 1103 return 0; 1104 } 1105 1106 static int pegasus_probe(struct usb_interface *intf, 1107 const struct usb_device_id *id) 1108 { 1109 struct usb_device *dev = interface_to_usbdev(intf); 1110 struct net_device *net; 1111 pegasus_t *pegasus; 1112 int dev_index = id - pegasus_ids; 1113 int res = -ENOMEM; 1114 1115 if (pegasus_blacklisted(dev)) 1116 return -ENODEV; 1117 1118 net = alloc_etherdev(sizeof(struct pegasus)); 1119 if (!net) 1120 goto out; 1121 1122 pegasus = netdev_priv(net); 1123 pegasus->dev_index = dev_index; 1124 1125 res = alloc_urbs(pegasus); 1126 if (res < 0) { 1127 dev_err(&intf->dev, "can't allocate %s\n", "urbs"); 1128 goto out1; 1129 } 1130 1131 tasklet_setup(&pegasus->rx_tl, rx_fixup); 1132 1133 INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); 1134 1135 pegasus->intf = intf; 1136 pegasus->usb = dev; 1137 pegasus->net = net; 1138 1139 1140 net->watchdog_timeo = PEGASUS_TX_TIMEOUT; 1141 net->netdev_ops = &pegasus_netdev_ops; 1142 net->ethtool_ops = &ops; 1143 pegasus->mii.dev = net; 1144 pegasus->mii.mdio_read = mdio_read; 1145 pegasus->mii.mdio_write = mdio_write; 1146 pegasus->mii.phy_id_mask = 0x1f; 1147 pegasus->mii.reg_num_mask = 0x1f; 1148 pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV 1149 | NETIF_MSG_PROBE | NETIF_MSG_LINK); 1150 1151 pegasus->features = usb_dev_id[dev_index].private; 1152 get_interrupt_interval(pegasus); 1153 if (reset_mac(pegasus)) { 1154 dev_err(&intf->dev, "can't reset MAC\n"); 1155 res = -EIO; 1156 goto out2; 1157 } 1158 set_ethernet_addr(pegasus); 1159 if (pegasus->features & PEGASUS_II) { 1160 dev_info(&intf->dev, "setup Pegasus II specific registers\n"); 1161 setup_pegasus_II(pegasus); 1162 } 1163 pegasus->phy = mii_phy_probe(pegasus); 1164 if (pegasus->phy == 0xff) { 1165 dev_warn(&intf->dev, "can't locate MII phy, using default\n"); 1166 pegasus->phy = 1; 1167 } 1168 pegasus->mii.phy_id = pegasus->phy; 1169 usb_set_intfdata(intf, pegasus); 1170 SET_NETDEV_DEV(net, &intf->dev); 1171 pegasus_reset_wol(net); 1172 res = register_netdev(net); 1173 if (res) 1174 goto out3; 1175 queue_delayed_work(system_long_wq, &pegasus->carrier_check, 1176 CARRIER_CHECK_DELAY); 1177 dev_info(&intf->dev, "%s, %s, %pM\n", net->name, 1178 usb_dev_id[dev_index].name, net->dev_addr); 1179 return 0; 1180 1181 out3: 1182 usb_set_intfdata(intf, NULL); 1183 out2: 1184 free_all_urbs(pegasus); 1185 out1: 1186 free_netdev(net); 1187 out: 1188 return res; 1189 } 1190 1191 static void pegasus_disconnect(struct usb_interface *intf) 1192 { 1193 struct pegasus *pegasus = usb_get_intfdata(intf); 1194 1195 usb_set_intfdata(intf, NULL); 1196 if (!pegasus) { 1197 dev_dbg(&intf->dev, "unregistering non-bound device?\n"); 1198 return; 1199 } 1200 1201 pegasus->flags |= PEGASUS_UNPLUG; 1202 cancel_delayed_work_sync(&pegasus->carrier_check); 1203 unregister_netdev(pegasus->net); 1204 unlink_all_urbs(pegasus); 1205 free_all_urbs(pegasus); 1206 if (pegasus->rx_skb != NULL) { 1207 dev_kfree_skb(pegasus->rx_skb); 1208 pegasus->rx_skb = NULL; 1209 } 1210 free_netdev(pegasus->net); 1211 } 1212 1213 static int pegasus_suspend(struct usb_interface *intf, pm_message_t message) 1214 { 1215 struct pegasus *pegasus = usb_get_intfdata(intf); 1216 1217 netif_device_detach(pegasus->net); 1218 cancel_delayed_work_sync(&pegasus->carrier_check); 1219 if (netif_running(pegasus->net)) { 1220 usb_kill_urb(pegasus->rx_urb); 1221 usb_kill_urb(pegasus->intr_urb); 1222 } 1223 return 0; 1224 } 1225 1226 static int pegasus_resume(struct usb_interface *intf) 1227 { 1228 struct pegasus *pegasus = usb_get_intfdata(intf); 1229 1230 netif_device_attach(pegasus->net); 1231 if (netif_running(pegasus->net)) { 1232 pegasus->rx_urb->status = 0; 1233 pegasus->rx_urb->actual_length = 0; 1234 read_bulk_callback(pegasus->rx_urb); 1235 1236 pegasus->intr_urb->status = 0; 1237 pegasus->intr_urb->actual_length = 0; 1238 intr_callback(pegasus->intr_urb); 1239 } 1240 queue_delayed_work(system_long_wq, &pegasus->carrier_check, 1241 CARRIER_CHECK_DELAY); 1242 return 0; 1243 } 1244 1245 static const struct net_device_ops pegasus_netdev_ops = { 1246 .ndo_open = pegasus_open, 1247 .ndo_stop = pegasus_close, 1248 .ndo_do_ioctl = pegasus_ioctl, 1249 .ndo_start_xmit = pegasus_start_xmit, 1250 .ndo_set_rx_mode = pegasus_set_multicast, 1251 .ndo_tx_timeout = pegasus_tx_timeout, 1252 .ndo_set_mac_address = eth_mac_addr, 1253 .ndo_validate_addr = eth_validate_addr, 1254 }; 1255 1256 static struct usb_driver pegasus_driver = { 1257 .name = driver_name, 1258 .probe = pegasus_probe, 1259 .disconnect = pegasus_disconnect, 1260 .id_table = pegasus_ids, 1261 .suspend = pegasus_suspend, 1262 .resume = pegasus_resume, 1263 .disable_hub_initiated_lpm = 1, 1264 }; 1265 1266 static void __init parse_id(char *id) 1267 { 1268 unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0; 1269 char *token, *name = NULL; 1270 1271 if ((token = strsep(&id, ":")) != NULL) 1272 name = token; 1273 /* name now points to a null terminated string*/ 1274 if ((token = strsep(&id, ":")) != NULL) 1275 vendor_id = simple_strtoul(token, NULL, 16); 1276 if ((token = strsep(&id, ":")) != NULL) 1277 device_id = simple_strtoul(token, NULL, 16); 1278 flags = simple_strtoul(id, NULL, 16); 1279 pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", 1280 driver_name, name, vendor_id, device_id, flags); 1281 1282 if (vendor_id > 0x10000 || vendor_id == 0) 1283 return; 1284 if (device_id > 0x10000 || device_id == 0) 1285 return; 1286 1287 for (i = 0; usb_dev_id[i].name; i++); 1288 usb_dev_id[i].name = name; 1289 usb_dev_id[i].vendor = vendor_id; 1290 usb_dev_id[i].device = device_id; 1291 usb_dev_id[i].private = flags; 1292 pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 1293 pegasus_ids[i].idVendor = vendor_id; 1294 pegasus_ids[i].idProduct = device_id; 1295 } 1296 1297 static int __init pegasus_init(void) 1298 { 1299 pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); 1300 if (devid) 1301 parse_id(devid); 1302 return usb_register(&pegasus_driver); 1303 } 1304 1305 static void __exit pegasus_exit(void) 1306 { 1307 usb_deregister(&pegasus_driver); 1308 } 1309 1310 module_init(pegasus_init); 1311 module_exit(pegasus_exit); 1312