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/slab.h> 40 #include <linux/netdevice.h> 41 #include <linux/etherdevice.h> 42 #include <linux/skbuff.h> 43 #include <linux/spinlock.h> 44 #include <linux/ethtool.h> 45 #include <linux/crc32.h> 46 #include <linux/bitops.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 struct net_device_stats stats; 167 unsigned long flags; 168 169 unsigned int tx_ptr, tx_idx; 170 unsigned int ctrl_head, ctrl_tail; 171 spinlock_t tx_lock, ctrl_lock; 172 173 u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)]; 174 u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)]; 175 u8 irq_buf[2]; 176 u8 ctrl_buf[64]; 177 struct usb_ctrlrequest ctrl_dr; 178 179 struct timer_list timer; 180 u8 stats_buf[8]; 181 u16 stats_vals[4]; 182 unsigned long last_stats; 183 184 u8 multicast[64]; 185 186 struct ctrl_queue { 187 u8 dir; 188 u8 request; 189 u16 value; 190 u16 index; 191 void *buf; 192 int len; 193 void (*callback)(struct catc *catc, struct ctrl_queue *q); 194 } ctrl_queue[CTRL_QUEUE]; 195 196 struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb; 197 198 u8 is_f5u011; /* Set if device is an F5U011 */ 199 u8 rxmode[2]; /* Used for F5U011 */ 200 atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */ 201 }; 202 203 /* 204 * Useful macros. 205 */ 206 207 #define catc_get_mac(catc, mac) catc_ctrl_msg(catc, USB_DIR_IN, GetMac, 0, 0, mac, 6) 208 #define catc_reset(catc) catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0) 209 #define catc_set_reg(catc, reg, val) catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0) 210 #define catc_get_reg(catc, reg, buf) catc_ctrl_msg(catc, USB_DIR_IN, GetReg, 0, reg, buf, 1) 211 #define catc_write_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size) 212 #define catc_read_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_IN, ReadMem, 0, addr, buf, size) 213 214 #define f5u011_rxmode(catc, rxmode) catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2) 215 #define f5u011_rxmode_async(catc, rxmode) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL) 216 #define f5u011_mchash_async(catc, hash) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL) 217 218 #define catc_set_reg_async(catc, reg, val) catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL) 219 #define catc_get_reg_async(catc, reg, cb) catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb) 220 #define catc_write_mem_async(catc, addr, buf, size) catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL) 221 222 /* 223 * Receive routines. 224 */ 225 226 static void catc_rx_done(struct urb *urb) 227 { 228 struct catc *catc = urb->context; 229 u8 *pkt_start = urb->transfer_buffer; 230 struct sk_buff *skb; 231 int pkt_len, pkt_offset = 0; 232 int status = urb->status; 233 234 if (!catc->is_f5u011) { 235 clear_bit(RX_RUNNING, &catc->flags); 236 pkt_offset = 2; 237 } 238 239 if (status) { 240 dbg("rx_done, status %d, length %d", status, urb->actual_length); 241 return; 242 } 243 244 do { 245 if(!catc->is_f5u011) { 246 pkt_len = le16_to_cpup((__le16*)pkt_start); 247 if (pkt_len > urb->actual_length) { 248 catc->stats.rx_length_errors++; 249 catc->stats.rx_errors++; 250 break; 251 } 252 } else { 253 pkt_len = urb->actual_length; 254 } 255 256 if (!(skb = dev_alloc_skb(pkt_len))) 257 return; 258 259 skb_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len); 260 skb_put(skb, pkt_len); 261 262 skb->protocol = eth_type_trans(skb, catc->netdev); 263 netif_rx(skb); 264 265 catc->stats.rx_packets++; 266 catc->stats.rx_bytes += pkt_len; 267 268 /* F5U011 only does one packet per RX */ 269 if (catc->is_f5u011) 270 break; 271 pkt_start += (((pkt_len + 1) >> 6) + 1) << 6; 272 273 } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length); 274 275 if (catc->is_f5u011) { 276 if (atomic_read(&catc->recq_sz)) { 277 int state; 278 atomic_dec(&catc->recq_sz); 279 dbg("getting extra packet"); 280 urb->dev = catc->usbdev; 281 if ((state = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { 282 dbg("submit(rx_urb) status %d", state); 283 } 284 } else { 285 clear_bit(RX_RUNNING, &catc->flags); 286 } 287 } 288 } 289 290 static void catc_irq_done(struct urb *urb) 291 { 292 struct catc *catc = urb->context; 293 u8 *data = urb->transfer_buffer; 294 int status = urb->status; 295 unsigned int hasdata = 0, linksts = LinkNoChange; 296 int res; 297 298 if (!catc->is_f5u011) { 299 hasdata = data[1] & 0x80; 300 if (data[1] & 0x40) 301 linksts = LinkGood; 302 else if (data[1] & 0x20) 303 linksts = LinkBad; 304 } else { 305 hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff); 306 if (data[0] == 0x90) 307 linksts = LinkGood; 308 else if (data[0] == 0xA0) 309 linksts = LinkBad; 310 } 311 312 switch (status) { 313 case 0: /* success */ 314 break; 315 case -ECONNRESET: /* unlink */ 316 case -ENOENT: 317 case -ESHUTDOWN: 318 return; 319 /* -EPIPE: should clear the halt */ 320 default: /* error */ 321 dbg("irq_done, status %d, data %02x %02x.", status, data[0], data[1]); 322 goto resubmit; 323 } 324 325 if (linksts == LinkGood) { 326 netif_carrier_on(catc->netdev); 327 dbg("link ok"); 328 } 329 330 if (linksts == LinkBad) { 331 netif_carrier_off(catc->netdev); 332 dbg("link bad"); 333 } 334 335 if (hasdata) { 336 if (test_and_set_bit(RX_RUNNING, &catc->flags)) { 337 if (catc->is_f5u011) 338 atomic_inc(&catc->recq_sz); 339 } else { 340 catc->rx_urb->dev = catc->usbdev; 341 if ((res = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) { 342 err("submit(rx_urb) status %d", res); 343 } 344 } 345 } 346 resubmit: 347 res = usb_submit_urb (urb, GFP_ATOMIC); 348 if (res) 349 err ("can't resubmit intr, %s-%s, status %d", 350 catc->usbdev->bus->bus_name, 351 catc->usbdev->devpath, res); 352 } 353 354 /* 355 * Transmit routines. 356 */ 357 358 static int catc_tx_run(struct catc *catc) 359 { 360 int status; 361 362 if (catc->is_f5u011) 363 catc->tx_ptr = (catc->tx_ptr + 63) & ~63; 364 365 catc->tx_urb->transfer_buffer_length = catc->tx_ptr; 366 catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx]; 367 catc->tx_urb->dev = catc->usbdev; 368 369 if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0) 370 err("submit(tx_urb), status %d", status); 371 372 catc->tx_idx = !catc->tx_idx; 373 catc->tx_ptr = 0; 374 375 catc->netdev->trans_start = jiffies; 376 return status; 377 } 378 379 static void catc_tx_done(struct urb *urb) 380 { 381 struct catc *catc = urb->context; 382 unsigned long flags; 383 int r, status = urb->status; 384 385 if (status == -ECONNRESET) { 386 dbg("Tx Reset."); 387 urb->status = 0; 388 catc->netdev->trans_start = jiffies; 389 catc->stats.tx_errors++; 390 clear_bit(TX_RUNNING, &catc->flags); 391 netif_wake_queue(catc->netdev); 392 return; 393 } 394 395 if (status) { 396 dbg("tx_done, status %d, length %d", status, urb->actual_length); 397 return; 398 } 399 400 spin_lock_irqsave(&catc->tx_lock, flags); 401 402 if (catc->tx_ptr) { 403 r = catc_tx_run(catc); 404 if (unlikely(r < 0)) 405 clear_bit(TX_RUNNING, &catc->flags); 406 } else { 407 clear_bit(TX_RUNNING, &catc->flags); 408 } 409 410 netif_wake_queue(catc->netdev); 411 412 spin_unlock_irqrestore(&catc->tx_lock, flags); 413 } 414 415 static int catc_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev) 416 { 417 struct catc *catc = netdev_priv(netdev); 418 unsigned long flags; 419 int r = 0; 420 char *tx_buf; 421 422 spin_lock_irqsave(&catc->tx_lock, flags); 423 424 catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6; 425 tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr; 426 if (catc->is_f5u011) 427 *(__be16 *)tx_buf = cpu_to_be16(skb->len); 428 else 429 *(__le16 *)tx_buf = cpu_to_le16(skb->len); 430 skb_copy_from_linear_data(skb, tx_buf + 2, skb->len); 431 catc->tx_ptr += skb->len + 2; 432 433 if (!test_and_set_bit(TX_RUNNING, &catc->flags)) { 434 r = catc_tx_run(catc); 435 if (r < 0) 436 clear_bit(TX_RUNNING, &catc->flags); 437 } 438 439 if ((catc->is_f5u011 && catc->tx_ptr) 440 || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2)))) 441 netif_stop_queue(netdev); 442 443 spin_unlock_irqrestore(&catc->tx_lock, flags); 444 445 if (r >= 0) { 446 catc->stats.tx_bytes += skb->len; 447 catc->stats.tx_packets++; 448 } 449 450 dev_kfree_skb(skb); 451 452 return 0; 453 } 454 455 static void catc_tx_timeout(struct net_device *netdev) 456 { 457 struct catc *catc = netdev_priv(netdev); 458 459 dev_warn(&netdev->dev, "Transmit timed out.\n"); 460 usb_unlink_urb(catc->tx_urb); 461 } 462 463 /* 464 * Control messages. 465 */ 466 467 static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len) 468 { 469 int retval = usb_control_msg(catc->usbdev, 470 dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0), 471 request, 0x40 | dir, value, index, buf, len, 1000); 472 return retval < 0 ? retval : 0; 473 } 474 475 static void catc_ctrl_run(struct catc *catc) 476 { 477 struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail; 478 struct usb_device *usbdev = catc->usbdev; 479 struct urb *urb = catc->ctrl_urb; 480 struct usb_ctrlrequest *dr = &catc->ctrl_dr; 481 int status; 482 483 dr->bRequest = q->request; 484 dr->bRequestType = 0x40 | q->dir; 485 dr->wValue = cpu_to_le16(q->value); 486 dr->wIndex = cpu_to_le16(q->index); 487 dr->wLength = cpu_to_le16(q->len); 488 489 urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0); 490 urb->transfer_buffer_length = q->len; 491 urb->transfer_buffer = catc->ctrl_buf; 492 urb->setup_packet = (void *) dr; 493 urb->dev = usbdev; 494 495 if (!q->dir && q->buf && q->len) 496 memcpy(catc->ctrl_buf, q->buf, q->len); 497 498 if ((status = usb_submit_urb(catc->ctrl_urb, GFP_KERNEL))) 499 err("submit(ctrl_urb) status %d", status); 500 } 501 502 static void catc_ctrl_done(struct urb *urb) 503 { 504 struct catc *catc = urb->context; 505 struct ctrl_queue *q; 506 unsigned long flags; 507 int status = urb->status; 508 509 if (status) 510 dbg("ctrl_done, status %d, len %d.", status, urb->actual_length); 511 512 spin_lock_irqsave(&catc->ctrl_lock, flags); 513 514 q = catc->ctrl_queue + catc->ctrl_tail; 515 516 if (q->dir) { 517 if (q->buf && q->len) 518 memcpy(q->buf, catc->ctrl_buf, q->len); 519 else 520 q->buf = catc->ctrl_buf; 521 } 522 523 if (q->callback) 524 q->callback(catc, q); 525 526 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); 527 528 if (catc->ctrl_head != catc->ctrl_tail) 529 catc_ctrl_run(catc); 530 else 531 clear_bit(CTRL_RUNNING, &catc->flags); 532 533 spin_unlock_irqrestore(&catc->ctrl_lock, flags); 534 } 535 536 static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value, 537 u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q)) 538 { 539 struct ctrl_queue *q; 540 int retval = 0; 541 unsigned long flags; 542 543 spin_lock_irqsave(&catc->ctrl_lock, flags); 544 545 q = catc->ctrl_queue + catc->ctrl_head; 546 547 q->dir = dir; 548 q->request = request; 549 q->value = value; 550 q->index = index; 551 q->buf = buf; 552 q->len = len; 553 q->callback = callback; 554 555 catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1); 556 557 if (catc->ctrl_head == catc->ctrl_tail) { 558 err("ctrl queue full"); 559 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); 560 retval = -1; 561 } 562 563 if (!test_and_set_bit(CTRL_RUNNING, &catc->flags)) 564 catc_ctrl_run(catc); 565 566 spin_unlock_irqrestore(&catc->ctrl_lock, flags); 567 568 return retval; 569 } 570 571 /* 572 * Statistics. 573 */ 574 575 static void catc_stats_done(struct catc *catc, struct ctrl_queue *q) 576 { 577 int index = q->index - EthStats; 578 u16 data, last; 579 580 catc->stats_buf[index] = *((char *)q->buf); 581 582 if (index & 1) 583 return; 584 585 data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1]; 586 last = catc->stats_vals[index >> 1]; 587 588 switch (index) { 589 case TxSingleColl: 590 case TxMultiColl: 591 catc->stats.collisions += data - last; 592 break; 593 case TxExcessColl: 594 catc->stats.tx_aborted_errors += data - last; 595 catc->stats.tx_errors += data - last; 596 break; 597 case RxFramErr: 598 catc->stats.rx_frame_errors += data - last; 599 catc->stats.rx_errors += data - last; 600 break; 601 } 602 603 catc->stats_vals[index >> 1] = data; 604 } 605 606 static void catc_stats_timer(unsigned long data) 607 { 608 struct catc *catc = (void *) data; 609 int i; 610 611 for (i = 0; i < 8; i++) 612 catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done); 613 614 mod_timer(&catc->timer, jiffies + STATS_UPDATE); 615 } 616 617 static struct net_device_stats *catc_get_stats(struct net_device *netdev) 618 { 619 struct catc *catc = netdev_priv(netdev); 620 return &catc->stats; 621 } 622 623 /* 624 * Receive modes. Broadcast, Multicast, Promisc. 625 */ 626 627 static void catc_multicast(unsigned char *addr, u8 *multicast) 628 { 629 u32 crc; 630 631 crc = ether_crc_le(6, addr); 632 multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); 633 } 634 635 static void catc_set_multicast_list(struct net_device *netdev) 636 { 637 struct catc *catc = netdev_priv(netdev); 638 struct dev_mc_list *mc; 639 u8 broadcast[6]; 640 u8 rx = RxEnable | RxPolarity | RxMultiCast; 641 int i; 642 643 memset(broadcast, 0xff, 6); 644 memset(catc->multicast, 0, 64); 645 646 catc_multicast(broadcast, catc->multicast); 647 catc_multicast(netdev->dev_addr, catc->multicast); 648 649 if (netdev->flags & IFF_PROMISC) { 650 memset(catc->multicast, 0xff, 64); 651 rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc; 652 } 653 654 if (netdev->flags & IFF_ALLMULTI) { 655 memset(catc->multicast, 0xff, 64); 656 } else { 657 for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = mc->next) { 658 u32 crc = ether_crc_le(6, mc->dmi_addr); 659 if (!catc->is_f5u011) { 660 catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); 661 } else { 662 catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7); 663 } 664 } 665 } 666 if (!catc->is_f5u011) { 667 catc_set_reg_async(catc, RxUnit, rx); 668 catc_write_mem_async(catc, 0xfa80, catc->multicast, 64); 669 } else { 670 f5u011_mchash_async(catc, catc->multicast); 671 if (catc->rxmode[0] != rx) { 672 catc->rxmode[0] = rx; 673 dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]); 674 f5u011_rxmode_async(catc, catc->rxmode); 675 } 676 } 677 } 678 679 static void catc_get_drvinfo(struct net_device *dev, 680 struct ethtool_drvinfo *info) 681 { 682 struct catc *catc = netdev_priv(dev); 683 strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); 684 strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); 685 usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info); 686 } 687 688 static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) 689 { 690 struct catc *catc = netdev_priv(dev); 691 if (!catc->is_f5u011) 692 return -EOPNOTSUPP; 693 694 cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP; 695 cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP; 696 cmd->speed = SPEED_10; 697 cmd->duplex = DUPLEX_HALF; 698 cmd->port = PORT_TP; 699 cmd->phy_address = 0; 700 cmd->transceiver = XCVR_INTERNAL; 701 cmd->autoneg = AUTONEG_DISABLE; 702 cmd->maxtxpkt = 1; 703 cmd->maxrxpkt = 1; 704 return 0; 705 } 706 707 static struct ethtool_ops ops = { 708 .get_drvinfo = catc_get_drvinfo, 709 .get_settings = catc_get_settings, 710 .get_link = ethtool_op_get_link 711 }; 712 713 /* 714 * Open, close. 715 */ 716 717 static int catc_open(struct net_device *netdev) 718 { 719 struct catc *catc = netdev_priv(netdev); 720 int status; 721 722 catc->irq_urb->dev = catc->usbdev; 723 if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) { 724 err("submit(irq_urb) status %d", status); 725 return -1; 726 } 727 728 netif_start_queue(netdev); 729 730 if (!catc->is_f5u011) 731 mod_timer(&catc->timer, jiffies + STATS_UPDATE); 732 733 return 0; 734 } 735 736 static int catc_stop(struct net_device *netdev) 737 { 738 struct catc *catc = netdev_priv(netdev); 739 740 netif_stop_queue(netdev); 741 742 if (!catc->is_f5u011) 743 del_timer_sync(&catc->timer); 744 745 usb_kill_urb(catc->rx_urb); 746 usb_kill_urb(catc->tx_urb); 747 usb_kill_urb(catc->irq_urb); 748 usb_kill_urb(catc->ctrl_urb); 749 750 return 0; 751 } 752 753 /* 754 * USB probe, disconnect. 755 */ 756 757 static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id) 758 { 759 struct usb_device *usbdev = interface_to_usbdev(intf); 760 struct net_device *netdev; 761 struct catc *catc; 762 u8 broadcast[6]; 763 int i, pktsz; 764 765 if (usb_set_interface(usbdev, 766 intf->altsetting->desc.bInterfaceNumber, 1)) { 767 err("Can't set altsetting 1."); 768 return -EIO; 769 } 770 771 netdev = alloc_etherdev(sizeof(struct catc)); 772 if (!netdev) 773 return -ENOMEM; 774 775 catc = netdev_priv(netdev); 776 777 netdev->open = catc_open; 778 netdev->hard_start_xmit = catc_hard_start_xmit; 779 netdev->stop = catc_stop; 780 netdev->get_stats = catc_get_stats; 781 netdev->tx_timeout = catc_tx_timeout; 782 netdev->watchdog_timeo = TX_TIMEOUT; 783 netdev->set_multicast_list = catc_set_multicast_list; 784 SET_ETHTOOL_OPS(netdev, &ops); 785 786 catc->usbdev = usbdev; 787 catc->netdev = netdev; 788 789 spin_lock_init(&catc->tx_lock); 790 spin_lock_init(&catc->ctrl_lock); 791 792 init_timer(&catc->timer); 793 catc->timer.data = (long) catc; 794 catc->timer.function = catc_stats_timer; 795 796 catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); 797 catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL); 798 catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL); 799 catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL); 800 if ((!catc->ctrl_urb) || (!catc->tx_urb) || 801 (!catc->rx_urb) || (!catc->irq_urb)) { 802 err("No free urbs available."); 803 usb_free_urb(catc->ctrl_urb); 804 usb_free_urb(catc->tx_urb); 805 usb_free_urb(catc->rx_urb); 806 usb_free_urb(catc->irq_urb); 807 free_netdev(netdev); 808 return -ENOMEM; 809 } 810 811 /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */ 812 if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && 813 le16_to_cpu(usbdev->descriptor.idProduct) == 0xa && 814 le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) { 815 dbg("Testing for f5u011"); 816 catc->is_f5u011 = 1; 817 atomic_set(&catc->recq_sz, 0); 818 pktsz = RX_PKT_SZ; 819 } else { 820 pktsz = RX_MAX_BURST * (PKT_SZ + 2); 821 } 822 823 usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0), 824 NULL, NULL, 0, catc_ctrl_done, catc); 825 826 usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1), 827 NULL, 0, catc_tx_done, catc); 828 829 usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1), 830 catc->rx_buf, pktsz, catc_rx_done, catc); 831 832 usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2), 833 catc->irq_buf, 2, catc_irq_done, catc, 1); 834 835 if (!catc->is_f5u011) { 836 dbg("Checking memory size\n"); 837 838 i = 0x12345678; 839 catc_write_mem(catc, 0x7a80, &i, 4); 840 i = 0x87654321; 841 catc_write_mem(catc, 0xfa80, &i, 4); 842 catc_read_mem(catc, 0x7a80, &i, 4); 843 844 switch (i) { 845 case 0x12345678: 846 catc_set_reg(catc, TxBufCount, 8); 847 catc_set_reg(catc, RxBufCount, 32); 848 dbg("64k Memory\n"); 849 break; 850 default: 851 dev_warn(&intf->dev, 852 "Couldn't detect memory size, assuming 32k\n"); 853 case 0x87654321: 854 catc_set_reg(catc, TxBufCount, 4); 855 catc_set_reg(catc, RxBufCount, 16); 856 dbg("32k Memory\n"); 857 break; 858 } 859 860 dbg("Getting MAC from SEEROM."); 861 862 catc_get_mac(catc, netdev->dev_addr); 863 864 dbg("Setting MAC into registers."); 865 866 for (i = 0; i < 6; i++) 867 catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]); 868 869 dbg("Filling the multicast list."); 870 871 memset(broadcast, 0xff, 6); 872 catc_multicast(broadcast, catc->multicast); 873 catc_multicast(netdev->dev_addr, catc->multicast); 874 catc_write_mem(catc, 0xfa80, catc->multicast, 64); 875 876 dbg("Clearing error counters."); 877 878 for (i = 0; i < 8; i++) 879 catc_set_reg(catc, EthStats + i, 0); 880 catc->last_stats = jiffies; 881 882 dbg("Enabling."); 883 884 catc_set_reg(catc, MaxBurst, RX_MAX_BURST); 885 catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits); 886 catc_set_reg(catc, LEDCtrl, LEDLink); 887 catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast); 888 } else { 889 dbg("Performing reset\n"); 890 catc_reset(catc); 891 catc_get_mac(catc, netdev->dev_addr); 892 893 dbg("Setting RX Mode"); 894 catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast; 895 catc->rxmode[1] = 0; 896 f5u011_rxmode(catc, catc->rxmode); 897 } 898 dbg("Init done."); 899 printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, ", 900 netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate", 901 usbdev->bus->bus_name, usbdev->devpath); 902 for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]); 903 printk("%2.2x.\n", netdev->dev_addr[i]); 904 usb_set_intfdata(intf, catc); 905 906 SET_NETDEV_DEV(netdev, &intf->dev); 907 if (register_netdev(netdev) != 0) { 908 usb_set_intfdata(intf, NULL); 909 usb_free_urb(catc->ctrl_urb); 910 usb_free_urb(catc->tx_urb); 911 usb_free_urb(catc->rx_urb); 912 usb_free_urb(catc->irq_urb); 913 free_netdev(netdev); 914 return -EIO; 915 } 916 return 0; 917 } 918 919 static void catc_disconnect(struct usb_interface *intf) 920 { 921 struct catc *catc = usb_get_intfdata(intf); 922 923 usb_set_intfdata(intf, NULL); 924 if (catc) { 925 unregister_netdev(catc->netdev); 926 usb_free_urb(catc->ctrl_urb); 927 usb_free_urb(catc->tx_urb); 928 usb_free_urb(catc->rx_urb); 929 usb_free_urb(catc->irq_urb); 930 free_netdev(catc->netdev); 931 } 932 } 933 934 /* 935 * Module functions and tables. 936 */ 937 938 static struct usb_device_id catc_id_table [] = { 939 { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */ 940 { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */ 941 { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */ 942 { } 943 }; 944 945 MODULE_DEVICE_TABLE(usb, catc_id_table); 946 947 static struct usb_driver catc_driver = { 948 .name = driver_name, 949 .probe = catc_probe, 950 .disconnect = catc_disconnect, 951 .id_table = catc_id_table, 952 }; 953 954 static int __init catc_init(void) 955 { 956 int result = usb_register(&catc_driver); 957 if (result == 0) 958 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 959 DRIVER_DESC "\n"); 960 return result; 961 } 962 963 static void __exit catc_exit(void) 964 { 965 usb_deregister(&catc_driver); 966 } 967 968 module_init(catc_init); 969 module_exit(catc_exit); 970