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