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 net->stats.rx_errors++; 505 if (rx_status & 0x06) /* long or runt */ 506 net->stats.rx_length_errors++; 507 if (rx_status & 0x08) 508 net->stats.rx_crc_errors++; 509 if (rx_status & 0x10) /* extra bits */ 510 net->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 net->stats.rx_packets++; 539 net->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 net->stats.tx_errors++; 674 if (d[0] & TX_UNDERRUN) 675 net->stats.tx_fifo_errors++; 676 if (d[0] & (EXCESSIVE_COL | JABBER_TIMEOUT)) 677 net->stats.tx_aborted_errors++; 678 if (d[0] & LATE_COL) 679 net->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 net->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 net->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 net->stats.tx_errors++; 735 netif_start_queue(net); 736 } 737 } else { 738 net->stats.tx_packets++; 739 net->stats.tx_bytes += skb->len; 740 } 741 dev_kfree_skb(skb); 742 743 return NETDEV_TX_OK; 744 } 745 746 static inline void disable_net_traffic(pegasus_t *pegasus) 747 { 748 __le16 tmp = cpu_to_le16(0); 749 750 set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp); 751 } 752 753 static inline void get_interrupt_interval(pegasus_t *pegasus) 754 { 755 u16 data; 756 u8 interval; 757 758 read_eprom_word(pegasus, 4, &data); 759 interval = data >> 8; 760 if (pegasus->usb->speed != USB_SPEED_HIGH) { 761 if (interval < 0x80) { 762 netif_info(pegasus, timer, pegasus->net, 763 "intr interval changed from %ums to %ums\n", 764 interval, 0x80); 765 interval = 0x80; 766 data = (data & 0x00FF) | ((u16)interval << 8); 767 #ifdef PEGASUS_WRITE_EEPROM 768 write_eprom_word(pegasus, 4, data); 769 #endif 770 } 771 } 772 pegasus->intr_interval = interval; 773 } 774 775 static void set_carrier(struct net_device *net) 776 { 777 pegasus_t *pegasus = netdev_priv(net); 778 u16 tmp; 779 780 if (read_mii_word(pegasus, pegasus->phy, MII_BMSR, &tmp)) 781 return; 782 783 if (tmp & BMSR_LSTATUS) 784 netif_carrier_on(net); 785 else 786 netif_carrier_off(net); 787 } 788 789 static void free_all_urbs(pegasus_t *pegasus) 790 { 791 usb_free_urb(pegasus->intr_urb); 792 usb_free_urb(pegasus->tx_urb); 793 usb_free_urb(pegasus->rx_urb); 794 } 795 796 static void unlink_all_urbs(pegasus_t *pegasus) 797 { 798 usb_kill_urb(pegasus->intr_urb); 799 usb_kill_urb(pegasus->tx_urb); 800 usb_kill_urb(pegasus->rx_urb); 801 } 802 803 static int alloc_urbs(pegasus_t *pegasus) 804 { 805 int res = -ENOMEM; 806 807 pegasus->rx_urb = usb_alloc_urb(0, GFP_KERNEL); 808 if (!pegasus->rx_urb) { 809 return res; 810 } 811 pegasus->tx_urb = usb_alloc_urb(0, GFP_KERNEL); 812 if (!pegasus->tx_urb) { 813 usb_free_urb(pegasus->rx_urb); 814 return res; 815 } 816 pegasus->intr_urb = usb_alloc_urb(0, GFP_KERNEL); 817 if (!pegasus->intr_urb) { 818 usb_free_urb(pegasus->tx_urb); 819 usb_free_urb(pegasus->rx_urb); 820 return res; 821 } 822 823 return 0; 824 } 825 826 static int pegasus_open(struct net_device *net) 827 { 828 pegasus_t *pegasus = netdev_priv(net); 829 int res=-ENOMEM; 830 831 if (pegasus->rx_skb == NULL) 832 pegasus->rx_skb = __netdev_alloc_skb_ip_align(pegasus->net, 833 PEGASUS_MTU, 834 GFP_KERNEL); 835 if (!pegasus->rx_skb) 836 goto exit; 837 838 res = set_registers(pegasus, EthID, 6, net->dev_addr); 839 840 usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb, 841 usb_rcvbulkpipe(pegasus->usb, 1), 842 pegasus->rx_skb->data, PEGASUS_MTU, 843 read_bulk_callback, pegasus); 844 if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) { 845 if (res == -ENODEV) 846 netif_device_detach(pegasus->net); 847 netif_dbg(pegasus, ifup, net, "failed rx_urb, %d\n", res); 848 goto exit; 849 } 850 851 usb_fill_int_urb(pegasus->intr_urb, pegasus->usb, 852 usb_rcvintpipe(pegasus->usb, 3), 853 pegasus->intr_buff, sizeof(pegasus->intr_buff), 854 intr_callback, pegasus, pegasus->intr_interval); 855 if ((res = usb_submit_urb(pegasus->intr_urb, GFP_KERNEL))) { 856 if (res == -ENODEV) 857 netif_device_detach(pegasus->net); 858 netif_dbg(pegasus, ifup, net, "failed intr_urb, %d\n", res); 859 usb_kill_urb(pegasus->rx_urb); 860 goto exit; 861 } 862 res = enable_net_traffic(net, pegasus->usb); 863 if (res < 0) { 864 netif_dbg(pegasus, ifup, net, 865 "can't enable_net_traffic() - %d\n", res); 866 res = -EIO; 867 usb_kill_urb(pegasus->rx_urb); 868 usb_kill_urb(pegasus->intr_urb); 869 goto exit; 870 } 871 set_carrier(net); 872 netif_start_queue(net); 873 netif_dbg(pegasus, ifup, net, "open\n"); 874 res = 0; 875 exit: 876 return res; 877 } 878 879 static int pegasus_close(struct net_device *net) 880 { 881 pegasus_t *pegasus = netdev_priv(net); 882 883 netif_stop_queue(net); 884 if (!(pegasus->flags & PEGASUS_UNPLUG)) 885 disable_net_traffic(pegasus); 886 tasklet_kill(&pegasus->rx_tl); 887 unlink_all_urbs(pegasus); 888 889 return 0; 890 } 891 892 static void pegasus_get_drvinfo(struct net_device *dev, 893 struct ethtool_drvinfo *info) 894 { 895 pegasus_t *pegasus = netdev_priv(dev); 896 897 strlcpy(info->driver, driver_name, sizeof(info->driver)); 898 strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); 899 usb_make_path(pegasus->usb, info->bus_info, sizeof(info->bus_info)); 900 } 901 902 /* also handles three patterns of some kind in hardware */ 903 #define WOL_SUPPORTED (WAKE_MAGIC|WAKE_PHY) 904 905 static void 906 pegasus_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 907 { 908 pegasus_t *pegasus = netdev_priv(dev); 909 910 wol->supported = WAKE_MAGIC | WAKE_PHY; 911 wol->wolopts = pegasus->wolopts; 912 } 913 914 static int 915 pegasus_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) 916 { 917 pegasus_t *pegasus = netdev_priv(dev); 918 u8 reg78 = 0x04; 919 int ret; 920 921 if (wol->wolopts & ~WOL_SUPPORTED) 922 return -EINVAL; 923 924 if (wol->wolopts & WAKE_MAGIC) 925 reg78 |= 0x80; 926 if (wol->wolopts & WAKE_PHY) 927 reg78 |= 0x40; 928 /* FIXME this 0x10 bit still needs to get set in the chip... */ 929 if (wol->wolopts) 930 pegasus->eth_regs[0] |= 0x10; 931 else 932 pegasus->eth_regs[0] &= ~0x10; 933 pegasus->wolopts = wol->wolopts; 934 935 ret = set_register(pegasus, WakeupControl, reg78); 936 if (!ret) 937 ret = device_set_wakeup_enable(&pegasus->usb->dev, 938 wol->wolopts); 939 return ret; 940 } 941 942 static inline void pegasus_reset_wol(struct net_device *dev) 943 { 944 struct ethtool_wolinfo wol; 945 946 memset(&wol, 0, sizeof wol); 947 (void) pegasus_set_wol(dev, &wol); 948 } 949 950 static int 951 pegasus_get_link_ksettings(struct net_device *dev, 952 struct ethtool_link_ksettings *ecmd) 953 { 954 pegasus_t *pegasus; 955 956 pegasus = netdev_priv(dev); 957 mii_ethtool_get_link_ksettings(&pegasus->mii, ecmd); 958 return 0; 959 } 960 961 static int 962 pegasus_set_link_ksettings(struct net_device *dev, 963 const struct ethtool_link_ksettings *ecmd) 964 { 965 pegasus_t *pegasus = netdev_priv(dev); 966 return mii_ethtool_set_link_ksettings(&pegasus->mii, ecmd); 967 } 968 969 static int pegasus_nway_reset(struct net_device *dev) 970 { 971 pegasus_t *pegasus = netdev_priv(dev); 972 return mii_nway_restart(&pegasus->mii); 973 } 974 975 static u32 pegasus_get_link(struct net_device *dev) 976 { 977 pegasus_t *pegasus = netdev_priv(dev); 978 return mii_link_ok(&pegasus->mii); 979 } 980 981 static u32 pegasus_get_msglevel(struct net_device *dev) 982 { 983 pegasus_t *pegasus = netdev_priv(dev); 984 return pegasus->msg_enable; 985 } 986 987 static void pegasus_set_msglevel(struct net_device *dev, u32 v) 988 { 989 pegasus_t *pegasus = netdev_priv(dev); 990 pegasus->msg_enable = v; 991 } 992 993 static const struct ethtool_ops ops = { 994 .get_drvinfo = pegasus_get_drvinfo, 995 .nway_reset = pegasus_nway_reset, 996 .get_link = pegasus_get_link, 997 .get_msglevel = pegasus_get_msglevel, 998 .set_msglevel = pegasus_set_msglevel, 999 .get_wol = pegasus_get_wol, 1000 .set_wol = pegasus_set_wol, 1001 .get_link_ksettings = pegasus_get_link_ksettings, 1002 .set_link_ksettings = pegasus_set_link_ksettings, 1003 }; 1004 1005 static int pegasus_ioctl(struct net_device *net, struct ifreq *rq, int cmd) 1006 { 1007 __u16 *data = (__u16 *) &rq->ifr_ifru; 1008 pegasus_t *pegasus = netdev_priv(net); 1009 int res; 1010 1011 switch (cmd) { 1012 case SIOCDEVPRIVATE: 1013 data[0] = pegasus->phy; 1014 case SIOCDEVPRIVATE + 1: 1015 read_mii_word(pegasus, data[0], data[1] & 0x1f, &data[3]); 1016 res = 0; 1017 break; 1018 case SIOCDEVPRIVATE + 2: 1019 if (!capable(CAP_NET_ADMIN)) 1020 return -EPERM; 1021 write_mii_word(pegasus, pegasus->phy, data[1] & 0x1f, &data[2]); 1022 res = 0; 1023 break; 1024 default: 1025 res = -EOPNOTSUPP; 1026 } 1027 return res; 1028 } 1029 1030 static void pegasus_set_multicast(struct net_device *net) 1031 { 1032 pegasus_t *pegasus = netdev_priv(net); 1033 1034 if (net->flags & IFF_PROMISC) { 1035 pegasus->eth_regs[EthCtrl2] |= RX_PROMISCUOUS; 1036 netif_info(pegasus, link, net, "Promiscuous mode enabled\n"); 1037 } else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { 1038 pegasus->eth_regs[EthCtrl0] |= RX_MULTICAST; 1039 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; 1040 netif_dbg(pegasus, link, net, "set allmulti\n"); 1041 } else { 1042 pegasus->eth_regs[EthCtrl0] &= ~RX_MULTICAST; 1043 pegasus->eth_regs[EthCtrl2] &= ~RX_PROMISCUOUS; 1044 } 1045 update_eth_regs_async(pegasus); 1046 } 1047 1048 static __u8 mii_phy_probe(pegasus_t *pegasus) 1049 { 1050 int i; 1051 __u16 tmp; 1052 1053 for (i = 0; i < 32; i++) { 1054 read_mii_word(pegasus, i, MII_BMSR, &tmp); 1055 if (tmp == 0 || tmp == 0xffff || (tmp & BMSR_MEDIA) == 0) 1056 continue; 1057 else 1058 return i; 1059 } 1060 1061 return 0xff; 1062 } 1063 1064 static inline void setup_pegasus_II(pegasus_t *pegasus) 1065 { 1066 __u8 data = 0xa5; 1067 1068 set_register(pegasus, Reg1d, 0); 1069 set_register(pegasus, Reg7b, 1); 1070 msleep(100); 1071 if ((pegasus->features & HAS_HOME_PNA) && mii_mode) 1072 set_register(pegasus, Reg7b, 0); 1073 else 1074 set_register(pegasus, Reg7b, 2); 1075 1076 set_register(pegasus, 0x83, data); 1077 get_registers(pegasus, 0x83, 1, &data); 1078 1079 if (data == 0xa5) 1080 pegasus->chip = 0x8513; 1081 else 1082 pegasus->chip = 0; 1083 1084 set_register(pegasus, 0x80, 0xc0); 1085 set_register(pegasus, 0x83, 0xff); 1086 set_register(pegasus, 0x84, 0x01); 1087 1088 if (pegasus->features & HAS_HOME_PNA && mii_mode) 1089 set_register(pegasus, Reg81, 6); 1090 else 1091 set_register(pegasus, Reg81, 2); 1092 } 1093 1094 1095 static int pegasus_count; 1096 static struct workqueue_struct *pegasus_workqueue; 1097 #define CARRIER_CHECK_DELAY (2 * HZ) 1098 1099 static void check_carrier(struct work_struct *work) 1100 { 1101 pegasus_t *pegasus = container_of(work, pegasus_t, carrier_check.work); 1102 set_carrier(pegasus->net); 1103 if (!(pegasus->flags & PEGASUS_UNPLUG)) { 1104 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, 1105 CARRIER_CHECK_DELAY); 1106 } 1107 } 1108 1109 static int pegasus_blacklisted(struct usb_device *udev) 1110 { 1111 struct usb_device_descriptor *udd = &udev->descriptor; 1112 1113 /* Special quirk to keep the driver from handling the Belkin Bluetooth 1114 * dongle which happens to have the same ID. 1115 */ 1116 if ((udd->idVendor == cpu_to_le16(VENDOR_BELKIN)) && 1117 (udd->idProduct == cpu_to_le16(0x0121)) && 1118 (udd->bDeviceClass == USB_CLASS_WIRELESS_CONTROLLER) && 1119 (udd->bDeviceProtocol == 1)) 1120 return 1; 1121 1122 return 0; 1123 } 1124 1125 /* we rely on probe() and remove() being serialized so we 1126 * don't need extra locking on pegasus_count. 1127 */ 1128 static void pegasus_dec_workqueue(void) 1129 { 1130 pegasus_count--; 1131 if (pegasus_count == 0) { 1132 destroy_workqueue(pegasus_workqueue); 1133 pegasus_workqueue = NULL; 1134 } 1135 } 1136 1137 static int pegasus_probe(struct usb_interface *intf, 1138 const struct usb_device_id *id) 1139 { 1140 struct usb_device *dev = interface_to_usbdev(intf); 1141 struct net_device *net; 1142 pegasus_t *pegasus; 1143 int dev_index = id - pegasus_ids; 1144 int res = -ENOMEM; 1145 1146 if (pegasus_blacklisted(dev)) 1147 return -ENODEV; 1148 1149 if (pegasus_count == 0) { 1150 pegasus_workqueue = alloc_workqueue("pegasus", WQ_MEM_RECLAIM, 1151 0); 1152 if (!pegasus_workqueue) 1153 return -ENOMEM; 1154 } 1155 pegasus_count++; 1156 1157 net = alloc_etherdev(sizeof(struct pegasus)); 1158 if (!net) 1159 goto out; 1160 1161 pegasus = netdev_priv(net); 1162 pegasus->dev_index = dev_index; 1163 1164 res = alloc_urbs(pegasus); 1165 if (res < 0) { 1166 dev_err(&intf->dev, "can't allocate %s\n", "urbs"); 1167 goto out1; 1168 } 1169 1170 tasklet_init(&pegasus->rx_tl, rx_fixup, (unsigned long) pegasus); 1171 1172 INIT_DELAYED_WORK(&pegasus->carrier_check, check_carrier); 1173 1174 pegasus->intf = intf; 1175 pegasus->usb = dev; 1176 pegasus->net = net; 1177 1178 1179 net->watchdog_timeo = PEGASUS_TX_TIMEOUT; 1180 net->netdev_ops = &pegasus_netdev_ops; 1181 net->ethtool_ops = &ops; 1182 pegasus->mii.dev = net; 1183 pegasus->mii.mdio_read = mdio_read; 1184 pegasus->mii.mdio_write = mdio_write; 1185 pegasus->mii.phy_id_mask = 0x1f; 1186 pegasus->mii.reg_num_mask = 0x1f; 1187 pegasus->msg_enable = netif_msg_init(msg_level, NETIF_MSG_DRV 1188 | NETIF_MSG_PROBE | NETIF_MSG_LINK); 1189 1190 pegasus->features = usb_dev_id[dev_index].private; 1191 get_interrupt_interval(pegasus); 1192 if (reset_mac(pegasus)) { 1193 dev_err(&intf->dev, "can't reset MAC\n"); 1194 res = -EIO; 1195 goto out2; 1196 } 1197 set_ethernet_addr(pegasus); 1198 if (pegasus->features & PEGASUS_II) { 1199 dev_info(&intf->dev, "setup Pegasus II specific registers\n"); 1200 setup_pegasus_II(pegasus); 1201 } 1202 pegasus->phy = mii_phy_probe(pegasus); 1203 if (pegasus->phy == 0xff) { 1204 dev_warn(&intf->dev, "can't locate MII phy, using default\n"); 1205 pegasus->phy = 1; 1206 } 1207 pegasus->mii.phy_id = pegasus->phy; 1208 usb_set_intfdata(intf, pegasus); 1209 SET_NETDEV_DEV(net, &intf->dev); 1210 pegasus_reset_wol(net); 1211 res = register_netdev(net); 1212 if (res) 1213 goto out3; 1214 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, 1215 CARRIER_CHECK_DELAY); 1216 dev_info(&intf->dev, "%s, %s, %pM\n", net->name, 1217 usb_dev_id[dev_index].name, net->dev_addr); 1218 return 0; 1219 1220 out3: 1221 usb_set_intfdata(intf, NULL); 1222 out2: 1223 free_all_urbs(pegasus); 1224 out1: 1225 free_netdev(net); 1226 out: 1227 pegasus_dec_workqueue(); 1228 return res; 1229 } 1230 1231 static void pegasus_disconnect(struct usb_interface *intf) 1232 { 1233 struct pegasus *pegasus = usb_get_intfdata(intf); 1234 1235 usb_set_intfdata(intf, NULL); 1236 if (!pegasus) { 1237 dev_dbg(&intf->dev, "unregistering non-bound device?\n"); 1238 return; 1239 } 1240 1241 pegasus->flags |= PEGASUS_UNPLUG; 1242 cancel_delayed_work(&pegasus->carrier_check); 1243 unregister_netdev(pegasus->net); 1244 unlink_all_urbs(pegasus); 1245 free_all_urbs(pegasus); 1246 if (pegasus->rx_skb != NULL) { 1247 dev_kfree_skb(pegasus->rx_skb); 1248 pegasus->rx_skb = NULL; 1249 } 1250 free_netdev(pegasus->net); 1251 pegasus_dec_workqueue(); 1252 } 1253 1254 static int pegasus_suspend(struct usb_interface *intf, pm_message_t message) 1255 { 1256 struct pegasus *pegasus = usb_get_intfdata(intf); 1257 1258 netif_device_detach(pegasus->net); 1259 cancel_delayed_work(&pegasus->carrier_check); 1260 if (netif_running(pegasus->net)) { 1261 usb_kill_urb(pegasus->rx_urb); 1262 usb_kill_urb(pegasus->intr_urb); 1263 } 1264 return 0; 1265 } 1266 1267 static int pegasus_resume(struct usb_interface *intf) 1268 { 1269 struct pegasus *pegasus = usb_get_intfdata(intf); 1270 1271 netif_device_attach(pegasus->net); 1272 if (netif_running(pegasus->net)) { 1273 pegasus->rx_urb->status = 0; 1274 pegasus->rx_urb->actual_length = 0; 1275 read_bulk_callback(pegasus->rx_urb); 1276 1277 pegasus->intr_urb->status = 0; 1278 pegasus->intr_urb->actual_length = 0; 1279 intr_callback(pegasus->intr_urb); 1280 } 1281 queue_delayed_work(pegasus_workqueue, &pegasus->carrier_check, 1282 CARRIER_CHECK_DELAY); 1283 return 0; 1284 } 1285 1286 static const struct net_device_ops pegasus_netdev_ops = { 1287 .ndo_open = pegasus_open, 1288 .ndo_stop = pegasus_close, 1289 .ndo_do_ioctl = pegasus_ioctl, 1290 .ndo_start_xmit = pegasus_start_xmit, 1291 .ndo_set_rx_mode = pegasus_set_multicast, 1292 .ndo_tx_timeout = pegasus_tx_timeout, 1293 .ndo_set_mac_address = eth_mac_addr, 1294 .ndo_validate_addr = eth_validate_addr, 1295 }; 1296 1297 static struct usb_driver pegasus_driver = { 1298 .name = driver_name, 1299 .probe = pegasus_probe, 1300 .disconnect = pegasus_disconnect, 1301 .id_table = pegasus_ids, 1302 .suspend = pegasus_suspend, 1303 .resume = pegasus_resume, 1304 .disable_hub_initiated_lpm = 1, 1305 }; 1306 1307 static void __init parse_id(char *id) 1308 { 1309 unsigned int vendor_id = 0, device_id = 0, flags = 0, i = 0; 1310 char *token, *name = NULL; 1311 1312 if ((token = strsep(&id, ":")) != NULL) 1313 name = token; 1314 /* name now points to a null terminated string*/ 1315 if ((token = strsep(&id, ":")) != NULL) 1316 vendor_id = simple_strtoul(token, NULL, 16); 1317 if ((token = strsep(&id, ":")) != NULL) 1318 device_id = simple_strtoul(token, NULL, 16); 1319 flags = simple_strtoul(id, NULL, 16); 1320 pr_info("%s: new device %s, vendor ID 0x%04x, device ID 0x%04x, flags: 0x%x\n", 1321 driver_name, name, vendor_id, device_id, flags); 1322 1323 if (vendor_id > 0x10000 || vendor_id == 0) 1324 return; 1325 if (device_id > 0x10000 || device_id == 0) 1326 return; 1327 1328 for (i = 0; usb_dev_id[i].name; i++); 1329 usb_dev_id[i].name = name; 1330 usb_dev_id[i].vendor = vendor_id; 1331 usb_dev_id[i].device = device_id; 1332 usb_dev_id[i].private = flags; 1333 pegasus_ids[i].match_flags = USB_DEVICE_ID_MATCH_DEVICE; 1334 pegasus_ids[i].idVendor = vendor_id; 1335 pegasus_ids[i].idProduct = device_id; 1336 } 1337 1338 static int __init pegasus_init(void) 1339 { 1340 pr_info("%s: %s, " DRIVER_DESC "\n", driver_name, DRIVER_VERSION); 1341 if (devid) 1342 parse_id(devid); 1343 return usb_register(&pegasus_driver); 1344 } 1345 1346 static void __exit pegasus_exit(void) 1347 { 1348 usb_deregister(&pegasus_driver); 1349 } 1350 1351 module_init(pegasus_init); 1352 module_exit(pegasus_exit); 1353