1 /* 2 * Copyright (c) 2001 Vojtech Pavlik 3 * 4 * CATC EL1210A NetMate USB Ethernet driver 5 * 6 * Sponsored by SuSE 7 * 8 * Based on the work of 9 * Donald Becker 10 * 11 * Old chipset support added by Simon Evans <spse@secret.org.uk> 2002 12 * - adds support for Belkin F5U011 13 */ 14 15 /* 16 * This program is free software; you can redistribute it and/or modify 17 * it under the terms of the GNU General Public License as published by 18 * the Free Software Foundation; either version 2 of the License, or 19 * (at your option) any later version. 20 * 21 * This program is distributed in the hope that it will be useful, 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 * GNU General Public License for more details. 25 * 26 * You should have received a copy of the GNU General Public License 27 * along with this program; if not, write to the Free Software 28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 29 * 30 * Should you need to contact me, the author, you can do so either by 31 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: 32 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic 33 */ 34 35 #include <linux/init.h> 36 #include <linux/module.h> 37 #include <linux/kernel.h> 38 #include <linux/string.h> 39 #include <linux/netdevice.h> 40 #include <linux/etherdevice.h> 41 #include <linux/skbuff.h> 42 #include <linux/spinlock.h> 43 #include <linux/ethtool.h> 44 #include <linux/crc32.h> 45 #include <linux/bitops.h> 46 #include <linux/gfp.h> 47 #include <asm/uaccess.h> 48 49 #undef DEBUG 50 51 #include <linux/usb.h> 52 53 /* 54 * Version information. 55 */ 56 57 #define DRIVER_VERSION "v2.8" 58 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>" 59 #define DRIVER_DESC "CATC EL1210A NetMate USB Ethernet driver" 60 #define SHORT_DRIVER_DESC "EL1210A NetMate USB Ethernet" 61 62 MODULE_AUTHOR(DRIVER_AUTHOR); 63 MODULE_DESCRIPTION(DRIVER_DESC); 64 MODULE_LICENSE("GPL"); 65 66 static const char driver_name[] = "catc"; 67 68 /* 69 * Some defines. 70 */ 71 72 #define STATS_UPDATE (HZ) /* Time between stats updates */ 73 #define TX_TIMEOUT (5*HZ) /* Max time the queue can be stopped */ 74 #define PKT_SZ 1536 /* Max Ethernet packet size */ 75 #define RX_MAX_BURST 15 /* Max packets per rx buffer (> 0, < 16) */ 76 #define TX_MAX_BURST 15 /* Max full sized packets per tx buffer (> 0) */ 77 #define CTRL_QUEUE 16 /* Max control requests in flight (power of two) */ 78 #define RX_PKT_SZ 1600 /* Max size of receive packet for F5U011 */ 79 80 /* 81 * Control requests. 82 */ 83 84 enum control_requests { 85 ReadMem = 0xf1, 86 GetMac = 0xf2, 87 Reset = 0xf4, 88 SetMac = 0xf5, 89 SetRxMode = 0xf5, /* F5U011 only */ 90 WriteROM = 0xf8, 91 SetReg = 0xfa, 92 GetReg = 0xfb, 93 WriteMem = 0xfc, 94 ReadROM = 0xfd, 95 }; 96 97 /* 98 * Registers. 99 */ 100 101 enum register_offsets { 102 TxBufCount = 0x20, 103 RxBufCount = 0x21, 104 OpModes = 0x22, 105 TxQed = 0x23, 106 RxQed = 0x24, 107 MaxBurst = 0x25, 108 RxUnit = 0x60, 109 EthStatus = 0x61, 110 StationAddr0 = 0x67, 111 EthStats = 0x69, 112 LEDCtrl = 0x81, 113 }; 114 115 enum eth_stats { 116 TxSingleColl = 0x00, 117 TxMultiColl = 0x02, 118 TxExcessColl = 0x04, 119 RxFramErr = 0x06, 120 }; 121 122 enum op_mode_bits { 123 Op3MemWaits = 0x03, 124 OpLenInclude = 0x08, 125 OpRxMerge = 0x10, 126 OpTxMerge = 0x20, 127 OpWin95bugfix = 0x40, 128 OpLoopback = 0x80, 129 }; 130 131 enum rx_filter_bits { 132 RxEnable = 0x01, 133 RxPolarity = 0x02, 134 RxForceOK = 0x04, 135 RxMultiCast = 0x08, 136 RxPromisc = 0x10, 137 AltRxPromisc = 0x20, /* F5U011 uses different bit */ 138 }; 139 140 enum led_values { 141 LEDFast = 0x01, 142 LEDSlow = 0x02, 143 LEDFlash = 0x03, 144 LEDPulse = 0x04, 145 LEDLink = 0x08, 146 }; 147 148 enum link_status { 149 LinkNoChange = 0, 150 LinkGood = 1, 151 LinkBad = 2 152 }; 153 154 /* 155 * The catc struct. 156 */ 157 158 #define CTRL_RUNNING 0 159 #define RX_RUNNING 1 160 #define TX_RUNNING 2 161 162 struct catc { 163 struct net_device *netdev; 164 struct usb_device *usbdev; 165 166 unsigned long flags; 167 168 unsigned int tx_ptr, tx_idx; 169 unsigned int ctrl_head, ctrl_tail; 170 spinlock_t tx_lock, ctrl_lock; 171 172 u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)]; 173 u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)]; 174 u8 irq_buf[2]; 175 u8 ctrl_buf[64]; 176 struct usb_ctrlrequest ctrl_dr; 177 178 struct timer_list timer; 179 u8 stats_buf[8]; 180 u16 stats_vals[4]; 181 unsigned long last_stats; 182 183 u8 multicast[64]; 184 185 struct ctrl_queue { 186 u8 dir; 187 u8 request; 188 u16 value; 189 u16 index; 190 void *buf; 191 int len; 192 void (*callback)(struct catc *catc, struct ctrl_queue *q); 193 } ctrl_queue[CTRL_QUEUE]; 194 195 struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb; 196 197 u8 is_f5u011; /* Set if device is an F5U011 */ 198 u8 rxmode[2]; /* Used for F5U011 */ 199 atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */ 200 }; 201 202 /* 203 * Useful macros. 204 */ 205 206 #define catc_get_mac(catc, mac) catc_ctrl_msg(catc, USB_DIR_IN, GetMac, 0, 0, mac, 6) 207 #define catc_reset(catc) catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0) 208 #define catc_set_reg(catc, reg, val) catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0) 209 #define catc_get_reg(catc, reg, buf) catc_ctrl_msg(catc, USB_DIR_IN, GetReg, 0, reg, buf, 1) 210 #define catc_write_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size) 211 #define catc_read_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_IN, ReadMem, 0, addr, buf, size) 212 213 #define f5u011_rxmode(catc, rxmode) catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2) 214 #define f5u011_rxmode_async(catc, rxmode) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL) 215 #define f5u011_mchash_async(catc, hash) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL) 216 217 #define catc_set_reg_async(catc, reg, val) catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL) 218 #define catc_get_reg_async(catc, reg, cb) catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb) 219 #define catc_write_mem_async(catc, addr, buf, size) catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL) 220 221 /* 222 * Receive routines. 223 */ 224 225 static void catc_rx_done(struct urb *urb) 226 { 227 struct catc *catc = urb->context; 228 u8 *pkt_start = urb->transfer_buffer; 229 struct sk_buff *skb; 230 int pkt_len, pkt_offset = 0; 231 int status = urb->status; 232 233 if (!catc->is_f5u011) { 234 clear_bit(RX_RUNNING, &catc->flags); 235 pkt_offset = 2; 236 } 237 238 if (status) { 239 dbg("rx_done, status %d, length %d", status, urb->actual_length); 240 return; 241 } 242 243 do { 244 if(!catc->is_f5u011) { 245 pkt_len = le16_to_cpup((__le16*)pkt_start); 246 if (pkt_len > urb->actual_length) { 247 catc->netdev->stats.rx_length_errors++; 248 catc->netdev->stats.rx_errors++; 249 break; 250 } 251 } else { 252 pkt_len = urb->actual_length; 253 } 254 255 if (!(skb = dev_alloc_skb(pkt_len))) 256 return; 257 258 skb_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len); 259 skb_put(skb, pkt_len); 260 261 skb->protocol = eth_type_trans(skb, catc->netdev); 262 netif_rx(skb); 263 264 catc->netdev->stats.rx_packets++; 265 catc->netdev->stats.rx_bytes += pkt_len; 266 267 /* F5U011 only does one packet per RX */ 268 if (catc->is_f5u011) 269 break; 270 pkt_start += (((pkt_len + 1) >> 6) + 1) << 6; 271 272 } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length); 273 274 if (catc->is_f5u011) { 275 if (atomic_read(&catc->recq_sz)) { 276 int state; 277 atomic_dec(&catc->recq_sz); 278 dbg("getting extra packet"); 279 urb->dev = catc->usbdev; 280 if ((state = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { 281 dbg("submit(rx_urb) status %d", state); 282 } 283 } else { 284 clear_bit(RX_RUNNING, &catc->flags); 285 } 286 } 287 } 288 289 static void catc_irq_done(struct urb *urb) 290 { 291 struct catc *catc = urb->context; 292 u8 *data = urb->transfer_buffer; 293 int status = urb->status; 294 unsigned int hasdata = 0, linksts = LinkNoChange; 295 int res; 296 297 if (!catc->is_f5u011) { 298 hasdata = data[1] & 0x80; 299 if (data[1] & 0x40) 300 linksts = LinkGood; 301 else if (data[1] & 0x20) 302 linksts = LinkBad; 303 } else { 304 hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff); 305 if (data[0] == 0x90) 306 linksts = LinkGood; 307 else if (data[0] == 0xA0) 308 linksts = LinkBad; 309 } 310 311 switch (status) { 312 case 0: /* success */ 313 break; 314 case -ECONNRESET: /* unlink */ 315 case -ENOENT: 316 case -ESHUTDOWN: 317 return; 318 /* -EPIPE: should clear the halt */ 319 default: /* error */ 320 dbg("irq_done, status %d, data %02x %02x.", status, data[0], data[1]); 321 goto resubmit; 322 } 323 324 if (linksts == LinkGood) { 325 netif_carrier_on(catc->netdev); 326 dbg("link ok"); 327 } 328 329 if (linksts == LinkBad) { 330 netif_carrier_off(catc->netdev); 331 dbg("link bad"); 332 } 333 334 if (hasdata) { 335 if (test_and_set_bit(RX_RUNNING, &catc->flags)) { 336 if (catc->is_f5u011) 337 atomic_inc(&catc->recq_sz); 338 } else { 339 catc->rx_urb->dev = catc->usbdev; 340 if ((res = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) { 341 dev_err(&catc->usbdev->dev, 342 "submit(rx_urb) status %d\n", res); 343 } 344 } 345 } 346 resubmit: 347 res = usb_submit_urb (urb, GFP_ATOMIC); 348 if (res) 349 dev_err(&catc->usbdev->dev, 350 "can't resubmit intr, %s-%s, status %d\n", 351 catc->usbdev->bus->bus_name, 352 catc->usbdev->devpath, res); 353 } 354 355 /* 356 * Transmit routines. 357 */ 358 359 static int catc_tx_run(struct catc *catc) 360 { 361 int status; 362 363 if (catc->is_f5u011) 364 catc->tx_ptr = (catc->tx_ptr + 63) & ~63; 365 366 catc->tx_urb->transfer_buffer_length = catc->tx_ptr; 367 catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx]; 368 catc->tx_urb->dev = catc->usbdev; 369 370 if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0) 371 dev_err(&catc->usbdev->dev, "submit(tx_urb), status %d\n", 372 status); 373 374 catc->tx_idx = !catc->tx_idx; 375 catc->tx_ptr = 0; 376 377 catc->netdev->trans_start = jiffies; 378 return status; 379 } 380 381 static void catc_tx_done(struct urb *urb) 382 { 383 struct catc *catc = urb->context; 384 unsigned long flags; 385 int r, status = urb->status; 386 387 if (status == -ECONNRESET) { 388 dbg("Tx Reset."); 389 urb->status = 0; 390 catc->netdev->trans_start = jiffies; 391 catc->netdev->stats.tx_errors++; 392 clear_bit(TX_RUNNING, &catc->flags); 393 netif_wake_queue(catc->netdev); 394 return; 395 } 396 397 if (status) { 398 dbg("tx_done, status %d, length %d", status, urb->actual_length); 399 return; 400 } 401 402 spin_lock_irqsave(&catc->tx_lock, flags); 403 404 if (catc->tx_ptr) { 405 r = catc_tx_run(catc); 406 if (unlikely(r < 0)) 407 clear_bit(TX_RUNNING, &catc->flags); 408 } else { 409 clear_bit(TX_RUNNING, &catc->flags); 410 } 411 412 netif_wake_queue(catc->netdev); 413 414 spin_unlock_irqrestore(&catc->tx_lock, flags); 415 } 416 417 static netdev_tx_t catc_start_xmit(struct sk_buff *skb, 418 struct net_device *netdev) 419 { 420 struct catc *catc = netdev_priv(netdev); 421 unsigned long flags; 422 int r = 0; 423 char *tx_buf; 424 425 spin_lock_irqsave(&catc->tx_lock, flags); 426 427 catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6; 428 tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr; 429 if (catc->is_f5u011) 430 *(__be16 *)tx_buf = cpu_to_be16(skb->len); 431 else 432 *(__le16 *)tx_buf = cpu_to_le16(skb->len); 433 skb_copy_from_linear_data(skb, tx_buf + 2, skb->len); 434 catc->tx_ptr += skb->len + 2; 435 436 if (!test_and_set_bit(TX_RUNNING, &catc->flags)) { 437 r = catc_tx_run(catc); 438 if (r < 0) 439 clear_bit(TX_RUNNING, &catc->flags); 440 } 441 442 if ((catc->is_f5u011 && catc->tx_ptr) || 443 (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2)))) 444 netif_stop_queue(netdev); 445 446 spin_unlock_irqrestore(&catc->tx_lock, flags); 447 448 if (r >= 0) { 449 catc->netdev->stats.tx_bytes += skb->len; 450 catc->netdev->stats.tx_packets++; 451 } 452 453 dev_kfree_skb(skb); 454 455 return NETDEV_TX_OK; 456 } 457 458 static void catc_tx_timeout(struct net_device *netdev) 459 { 460 struct catc *catc = netdev_priv(netdev); 461 462 dev_warn(&netdev->dev, "Transmit timed out.\n"); 463 usb_unlink_urb(catc->tx_urb); 464 } 465 466 /* 467 * Control messages. 468 */ 469 470 static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len) 471 { 472 int retval = usb_control_msg(catc->usbdev, 473 dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0), 474 request, 0x40 | dir, value, index, buf, len, 1000); 475 return retval < 0 ? retval : 0; 476 } 477 478 static void catc_ctrl_run(struct catc *catc) 479 { 480 struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail; 481 struct usb_device *usbdev = catc->usbdev; 482 struct urb *urb = catc->ctrl_urb; 483 struct usb_ctrlrequest *dr = &catc->ctrl_dr; 484 int status; 485 486 dr->bRequest = q->request; 487 dr->bRequestType = 0x40 | q->dir; 488 dr->wValue = cpu_to_le16(q->value); 489 dr->wIndex = cpu_to_le16(q->index); 490 dr->wLength = cpu_to_le16(q->len); 491 492 urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0); 493 urb->transfer_buffer_length = q->len; 494 urb->transfer_buffer = catc->ctrl_buf; 495 urb->setup_packet = (void *) dr; 496 urb->dev = usbdev; 497 498 if (!q->dir && q->buf && q->len) 499 memcpy(catc->ctrl_buf, q->buf, q->len); 500 501 if ((status = usb_submit_urb(catc->ctrl_urb, GFP_ATOMIC))) 502 dev_err(&catc->usbdev->dev, "submit(ctrl_urb) status %d\n", 503 status); 504 } 505 506 static void catc_ctrl_done(struct urb *urb) 507 { 508 struct catc *catc = urb->context; 509 struct ctrl_queue *q; 510 unsigned long flags; 511 int status = urb->status; 512 513 if (status) 514 dbg("ctrl_done, status %d, len %d.", status, urb->actual_length); 515 516 spin_lock_irqsave(&catc->ctrl_lock, flags); 517 518 q = catc->ctrl_queue + catc->ctrl_tail; 519 520 if (q->dir) { 521 if (q->buf && q->len) 522 memcpy(q->buf, catc->ctrl_buf, q->len); 523 else 524 q->buf = catc->ctrl_buf; 525 } 526 527 if (q->callback) 528 q->callback(catc, q); 529 530 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); 531 532 if (catc->ctrl_head != catc->ctrl_tail) 533 catc_ctrl_run(catc); 534 else 535 clear_bit(CTRL_RUNNING, &catc->flags); 536 537 spin_unlock_irqrestore(&catc->ctrl_lock, flags); 538 } 539 540 static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value, 541 u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q)) 542 { 543 struct ctrl_queue *q; 544 int retval = 0; 545 unsigned long flags; 546 547 spin_lock_irqsave(&catc->ctrl_lock, flags); 548 549 q = catc->ctrl_queue + catc->ctrl_head; 550 551 q->dir = dir; 552 q->request = request; 553 q->value = value; 554 q->index = index; 555 q->buf = buf; 556 q->len = len; 557 q->callback = callback; 558 559 catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1); 560 561 if (catc->ctrl_head == catc->ctrl_tail) { 562 dev_err(&catc->usbdev->dev, "ctrl queue full\n"); 563 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); 564 retval = -1; 565 } 566 567 if (!test_and_set_bit(CTRL_RUNNING, &catc->flags)) 568 catc_ctrl_run(catc); 569 570 spin_unlock_irqrestore(&catc->ctrl_lock, flags); 571 572 return retval; 573 } 574 575 /* 576 * Statistics. 577 */ 578 579 static void catc_stats_done(struct catc *catc, struct ctrl_queue *q) 580 { 581 int index = q->index - EthStats; 582 u16 data, last; 583 584 catc->stats_buf[index] = *((char *)q->buf); 585 586 if (index & 1) 587 return; 588 589 data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1]; 590 last = catc->stats_vals[index >> 1]; 591 592 switch (index) { 593 case TxSingleColl: 594 case TxMultiColl: 595 catc->netdev->stats.collisions += data - last; 596 break; 597 case TxExcessColl: 598 catc->netdev->stats.tx_aborted_errors += data - last; 599 catc->netdev->stats.tx_errors += data - last; 600 break; 601 case RxFramErr: 602 catc->netdev->stats.rx_frame_errors += data - last; 603 catc->netdev->stats.rx_errors += data - last; 604 break; 605 } 606 607 catc->stats_vals[index >> 1] = data; 608 } 609 610 static void catc_stats_timer(unsigned long data) 611 { 612 struct catc *catc = (void *) data; 613 int i; 614 615 for (i = 0; i < 8; i++) 616 catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done); 617 618 mod_timer(&catc->timer, jiffies + STATS_UPDATE); 619 } 620 621 /* 622 * Receive modes. Broadcast, Multicast, Promisc. 623 */ 624 625 static void catc_multicast(unsigned char *addr, u8 *multicast) 626 { 627 u32 crc; 628 629 crc = ether_crc_le(6, addr); 630 multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); 631 } 632 633 static void catc_set_multicast_list(struct net_device *netdev) 634 { 635 struct catc *catc = netdev_priv(netdev); 636 struct netdev_hw_addr *ha; 637 u8 broadcast[6]; 638 u8 rx = RxEnable | RxPolarity | RxMultiCast; 639 640 memset(broadcast, 0xff, 6); 641 memset(catc->multicast, 0, 64); 642 643 catc_multicast(broadcast, catc->multicast); 644 catc_multicast(netdev->dev_addr, catc->multicast); 645 646 if (netdev->flags & IFF_PROMISC) { 647 memset(catc->multicast, 0xff, 64); 648 rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc; 649 } 650 651 if (netdev->flags & IFF_ALLMULTI) { 652 memset(catc->multicast, 0xff, 64); 653 } else { 654 netdev_for_each_mc_addr(ha, netdev) { 655 u32 crc = ether_crc_le(6, ha->addr); 656 if (!catc->is_f5u011) { 657 catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); 658 } else { 659 catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7); 660 } 661 } 662 } 663 if (!catc->is_f5u011) { 664 catc_set_reg_async(catc, RxUnit, rx); 665 catc_write_mem_async(catc, 0xfa80, catc->multicast, 64); 666 } else { 667 f5u011_mchash_async(catc, catc->multicast); 668 if (catc->rxmode[0] != rx) { 669 catc->rxmode[0] = rx; 670 dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]); 671 f5u011_rxmode_async(catc, catc->rxmode); 672 } 673 } 674 } 675 676 static void catc_get_drvinfo(struct net_device *dev, 677 struct ethtool_drvinfo *info) 678 { 679 struct catc *catc = netdev_priv(dev); 680 strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); 681 strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); 682 usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info); 683 } 684 685 static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) 686 { 687 struct catc *catc = netdev_priv(dev); 688 if (!catc->is_f5u011) 689 return -EOPNOTSUPP; 690 691 cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP; 692 cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP; 693 ethtool_cmd_speed_set(cmd, SPEED_10); 694 cmd->duplex = DUPLEX_HALF; 695 cmd->port = PORT_TP; 696 cmd->phy_address = 0; 697 cmd->transceiver = XCVR_INTERNAL; 698 cmd->autoneg = AUTONEG_DISABLE; 699 cmd->maxtxpkt = 1; 700 cmd->maxrxpkt = 1; 701 return 0; 702 } 703 704 static const struct ethtool_ops ops = { 705 .get_drvinfo = catc_get_drvinfo, 706 .get_settings = catc_get_settings, 707 .get_link = ethtool_op_get_link 708 }; 709 710 /* 711 * Open, close. 712 */ 713 714 static int catc_open(struct net_device *netdev) 715 { 716 struct catc *catc = netdev_priv(netdev); 717 int status; 718 719 catc->irq_urb->dev = catc->usbdev; 720 if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) { 721 dev_err(&catc->usbdev->dev, "submit(irq_urb) status %d\n", 722 status); 723 return -1; 724 } 725 726 netif_start_queue(netdev); 727 728 if (!catc->is_f5u011) 729 mod_timer(&catc->timer, jiffies + STATS_UPDATE); 730 731 return 0; 732 } 733 734 static int catc_stop(struct net_device *netdev) 735 { 736 struct catc *catc = netdev_priv(netdev); 737 738 netif_stop_queue(netdev); 739 740 if (!catc->is_f5u011) 741 del_timer_sync(&catc->timer); 742 743 usb_kill_urb(catc->rx_urb); 744 usb_kill_urb(catc->tx_urb); 745 usb_kill_urb(catc->irq_urb); 746 usb_kill_urb(catc->ctrl_urb); 747 748 return 0; 749 } 750 751 static const struct net_device_ops catc_netdev_ops = { 752 .ndo_open = catc_open, 753 .ndo_stop = catc_stop, 754 .ndo_start_xmit = catc_start_xmit, 755 756 .ndo_tx_timeout = catc_tx_timeout, 757 .ndo_set_rx_mode = catc_set_multicast_list, 758 .ndo_change_mtu = eth_change_mtu, 759 .ndo_set_mac_address = eth_mac_addr, 760 .ndo_validate_addr = eth_validate_addr, 761 }; 762 763 /* 764 * USB probe, disconnect. 765 */ 766 767 static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id) 768 { 769 struct usb_device *usbdev = interface_to_usbdev(intf); 770 struct net_device *netdev; 771 struct catc *catc; 772 u8 broadcast[6]; 773 int i, pktsz; 774 775 if (usb_set_interface(usbdev, 776 intf->altsetting->desc.bInterfaceNumber, 1)) { 777 dev_err(&intf->dev, "Can't set altsetting 1.\n"); 778 return -EIO; 779 } 780 781 netdev = alloc_etherdev(sizeof(struct catc)); 782 if (!netdev) 783 return -ENOMEM; 784 785 catc = netdev_priv(netdev); 786 787 netdev->netdev_ops = &catc_netdev_ops; 788 netdev->watchdog_timeo = TX_TIMEOUT; 789 SET_ETHTOOL_OPS(netdev, &ops); 790 791 catc->usbdev = usbdev; 792 catc->netdev = netdev; 793 794 spin_lock_init(&catc->tx_lock); 795 spin_lock_init(&catc->ctrl_lock); 796 797 init_timer(&catc->timer); 798 catc->timer.data = (long) catc; 799 catc->timer.function = catc_stats_timer; 800 801 catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); 802 catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL); 803 catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL); 804 catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL); 805 if ((!catc->ctrl_urb) || (!catc->tx_urb) || 806 (!catc->rx_urb) || (!catc->irq_urb)) { 807 dev_err(&intf->dev, "No free urbs available.\n"); 808 usb_free_urb(catc->ctrl_urb); 809 usb_free_urb(catc->tx_urb); 810 usb_free_urb(catc->rx_urb); 811 usb_free_urb(catc->irq_urb); 812 free_netdev(netdev); 813 return -ENOMEM; 814 } 815 816 /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */ 817 if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && 818 le16_to_cpu(usbdev->descriptor.idProduct) == 0xa && 819 le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) { 820 dbg("Testing for f5u011"); 821 catc->is_f5u011 = 1; 822 atomic_set(&catc->recq_sz, 0); 823 pktsz = RX_PKT_SZ; 824 } else { 825 pktsz = RX_MAX_BURST * (PKT_SZ + 2); 826 } 827 828 usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0), 829 NULL, NULL, 0, catc_ctrl_done, catc); 830 831 usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1), 832 NULL, 0, catc_tx_done, catc); 833 834 usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1), 835 catc->rx_buf, pktsz, catc_rx_done, catc); 836 837 usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2), 838 catc->irq_buf, 2, catc_irq_done, catc, 1); 839 840 if (!catc->is_f5u011) { 841 dbg("Checking memory size\n"); 842 843 i = 0x12345678; 844 catc_write_mem(catc, 0x7a80, &i, 4); 845 i = 0x87654321; 846 catc_write_mem(catc, 0xfa80, &i, 4); 847 catc_read_mem(catc, 0x7a80, &i, 4); 848 849 switch (i) { 850 case 0x12345678: 851 catc_set_reg(catc, TxBufCount, 8); 852 catc_set_reg(catc, RxBufCount, 32); 853 dbg("64k Memory\n"); 854 break; 855 default: 856 dev_warn(&intf->dev, 857 "Couldn't detect memory size, assuming 32k\n"); 858 case 0x87654321: 859 catc_set_reg(catc, TxBufCount, 4); 860 catc_set_reg(catc, RxBufCount, 16); 861 dbg("32k Memory\n"); 862 break; 863 } 864 865 dbg("Getting MAC from SEEROM."); 866 867 catc_get_mac(catc, netdev->dev_addr); 868 869 dbg("Setting MAC into registers."); 870 871 for (i = 0; i < 6; i++) 872 catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]); 873 874 dbg("Filling the multicast list."); 875 876 memset(broadcast, 0xff, 6); 877 catc_multicast(broadcast, catc->multicast); 878 catc_multicast(netdev->dev_addr, catc->multicast); 879 catc_write_mem(catc, 0xfa80, catc->multicast, 64); 880 881 dbg("Clearing error counters."); 882 883 for (i = 0; i < 8; i++) 884 catc_set_reg(catc, EthStats + i, 0); 885 catc->last_stats = jiffies; 886 887 dbg("Enabling."); 888 889 catc_set_reg(catc, MaxBurst, RX_MAX_BURST); 890 catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits); 891 catc_set_reg(catc, LEDCtrl, LEDLink); 892 catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast); 893 } else { 894 dbg("Performing reset\n"); 895 catc_reset(catc); 896 catc_get_mac(catc, netdev->dev_addr); 897 898 dbg("Setting RX Mode"); 899 catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast; 900 catc->rxmode[1] = 0; 901 f5u011_rxmode(catc, catc->rxmode); 902 } 903 dbg("Init done."); 904 printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, %pM.\n", 905 netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate", 906 usbdev->bus->bus_name, usbdev->devpath, netdev->dev_addr); 907 usb_set_intfdata(intf, catc); 908 909 SET_NETDEV_DEV(netdev, &intf->dev); 910 if (register_netdev(netdev) != 0) { 911 usb_set_intfdata(intf, NULL); 912 usb_free_urb(catc->ctrl_urb); 913 usb_free_urb(catc->tx_urb); 914 usb_free_urb(catc->rx_urb); 915 usb_free_urb(catc->irq_urb); 916 free_netdev(netdev); 917 return -EIO; 918 } 919 return 0; 920 } 921 922 static void catc_disconnect(struct usb_interface *intf) 923 { 924 struct catc *catc = usb_get_intfdata(intf); 925 926 usb_set_intfdata(intf, NULL); 927 if (catc) { 928 unregister_netdev(catc->netdev); 929 usb_free_urb(catc->ctrl_urb); 930 usb_free_urb(catc->tx_urb); 931 usb_free_urb(catc->rx_urb); 932 usb_free_urb(catc->irq_urb); 933 free_netdev(catc->netdev); 934 } 935 } 936 937 /* 938 * Module functions and tables. 939 */ 940 941 static struct usb_device_id catc_id_table [] = { 942 { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */ 943 { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */ 944 { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */ 945 { } 946 }; 947 948 MODULE_DEVICE_TABLE(usb, catc_id_table); 949 950 static struct usb_driver catc_driver = { 951 .name = driver_name, 952 .probe = catc_probe, 953 .disconnect = catc_disconnect, 954 .id_table = catc_id_table, 955 .disable_hub_initiated_lpm = 1, 956 }; 957 958 module_usb_driver(catc_driver); 959