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; 232 233 if (!catc->is_f5u011) { 234 clear_bit(RX_RUNNING, &catc->flags); 235 pkt_offset = 2; 236 } 237 238 if (urb->status) { 239 dbg("rx_done, status %d, length %d", urb->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->stats.rx_length_errors++; 248 catc->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->stats.rx_packets++; 265 catc->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 catc->netdev->last_rx = jiffies; 275 276 if (catc->is_f5u011) { 277 if (atomic_read(&catc->recq_sz)) { 278 int status; 279 atomic_dec(&catc->recq_sz); 280 dbg("getting extra packet"); 281 urb->dev = catc->usbdev; 282 if ((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { 283 dbg("submit(rx_urb) status %d", status); 284 } 285 } else { 286 clear_bit(RX_RUNNING, &catc->flags); 287 } 288 } 289 } 290 291 static void catc_irq_done(struct urb *urb) 292 { 293 struct catc *catc = urb->context; 294 u8 *data = urb->transfer_buffer; 295 int status; 296 unsigned int hasdata = 0, linksts = LinkNoChange; 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 (urb->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.", urb->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 ((status = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) { 342 err("submit(rx_urb) status %d", status); 343 } 344 } 345 } 346 resubmit: 347 status = usb_submit_urb (urb, GFP_ATOMIC); 348 if (status) 349 err ("can't resubmit intr, %s-%s, status %d", 350 catc->usbdev->bus->bus_name, 351 catc->usbdev->devpath, status); 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; 384 385 if (urb->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 (urb->status) { 396 dbg("tx_done, status %d, length %d", urb->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 *((u16*)tx_buf) = (catc->is_f5u011) ? cpu_to_be16((u16)skb->len) : cpu_to_le16((u16)skb->len); 427 skb_copy_from_linear_data(skb, tx_buf + 2, skb->len); 428 catc->tx_ptr += skb->len + 2; 429 430 if (!test_and_set_bit(TX_RUNNING, &catc->flags)) { 431 r = catc_tx_run(catc); 432 if (r < 0) 433 clear_bit(TX_RUNNING, &catc->flags); 434 } 435 436 if ((catc->is_f5u011 && catc->tx_ptr) 437 || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2)))) 438 netif_stop_queue(netdev); 439 440 spin_unlock_irqrestore(&catc->tx_lock, flags); 441 442 if (r >= 0) { 443 catc->stats.tx_bytes += skb->len; 444 catc->stats.tx_packets++; 445 } 446 447 dev_kfree_skb(skb); 448 449 return 0; 450 } 451 452 static void catc_tx_timeout(struct net_device *netdev) 453 { 454 struct catc *catc = netdev_priv(netdev); 455 456 warn("Transmit timed out."); 457 usb_unlink_urb(catc->tx_urb); 458 } 459 460 /* 461 * Control messages. 462 */ 463 464 static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len) 465 { 466 int retval = usb_control_msg(catc->usbdev, 467 dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0), 468 request, 0x40 | dir, value, index, buf, len, 1000); 469 return retval < 0 ? retval : 0; 470 } 471 472 static void catc_ctrl_run(struct catc *catc) 473 { 474 struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail; 475 struct usb_device *usbdev = catc->usbdev; 476 struct urb *urb = catc->ctrl_urb; 477 struct usb_ctrlrequest *dr = &catc->ctrl_dr; 478 int status; 479 480 dr->bRequest = q->request; 481 dr->bRequestType = 0x40 | q->dir; 482 dr->wValue = cpu_to_le16(q->value); 483 dr->wIndex = cpu_to_le16(q->index); 484 dr->wLength = cpu_to_le16(q->len); 485 486 urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0); 487 urb->transfer_buffer_length = q->len; 488 urb->transfer_buffer = catc->ctrl_buf; 489 urb->setup_packet = (void *) dr; 490 urb->dev = usbdev; 491 492 if (!q->dir && q->buf && q->len) 493 memcpy(catc->ctrl_buf, q->buf, q->len); 494 495 if ((status = usb_submit_urb(catc->ctrl_urb, GFP_KERNEL))) 496 err("submit(ctrl_urb) status %d", status); 497 } 498 499 static void catc_ctrl_done(struct urb *urb) 500 { 501 struct catc *catc = urb->context; 502 struct ctrl_queue *q; 503 unsigned long flags; 504 505 if (urb->status) 506 dbg("ctrl_done, status %d, len %d.", urb->status, urb->actual_length); 507 508 spin_lock_irqsave(&catc->ctrl_lock, flags); 509 510 q = catc->ctrl_queue + catc->ctrl_tail; 511 512 if (q->dir) { 513 if (q->buf && q->len) 514 memcpy(q->buf, catc->ctrl_buf, q->len); 515 else 516 q->buf = catc->ctrl_buf; 517 } 518 519 if (q->callback) 520 q->callback(catc, q); 521 522 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); 523 524 if (catc->ctrl_head != catc->ctrl_tail) 525 catc_ctrl_run(catc); 526 else 527 clear_bit(CTRL_RUNNING, &catc->flags); 528 529 spin_unlock_irqrestore(&catc->ctrl_lock, flags); 530 } 531 532 static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value, 533 u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q)) 534 { 535 struct ctrl_queue *q; 536 int retval = 0; 537 unsigned long flags; 538 539 spin_lock_irqsave(&catc->ctrl_lock, flags); 540 541 q = catc->ctrl_queue + catc->ctrl_head; 542 543 q->dir = dir; 544 q->request = request; 545 q->value = value; 546 q->index = index; 547 q->buf = buf; 548 q->len = len; 549 q->callback = callback; 550 551 catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1); 552 553 if (catc->ctrl_head == catc->ctrl_tail) { 554 err("ctrl queue full"); 555 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); 556 retval = -1; 557 } 558 559 if (!test_and_set_bit(CTRL_RUNNING, &catc->flags)) 560 catc_ctrl_run(catc); 561 562 spin_unlock_irqrestore(&catc->ctrl_lock, flags); 563 564 return retval; 565 } 566 567 /* 568 * Statistics. 569 */ 570 571 static void catc_stats_done(struct catc *catc, struct ctrl_queue *q) 572 { 573 int index = q->index - EthStats; 574 u16 data, last; 575 576 catc->stats_buf[index] = *((char *)q->buf); 577 578 if (index & 1) 579 return; 580 581 data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1]; 582 last = catc->stats_vals[index >> 1]; 583 584 switch (index) { 585 case TxSingleColl: 586 case TxMultiColl: 587 catc->stats.collisions += data - last; 588 break; 589 case TxExcessColl: 590 catc->stats.tx_aborted_errors += data - last; 591 catc->stats.tx_errors += data - last; 592 break; 593 case RxFramErr: 594 catc->stats.rx_frame_errors += data - last; 595 catc->stats.rx_errors += data - last; 596 break; 597 } 598 599 catc->stats_vals[index >> 1] = data; 600 } 601 602 static void catc_stats_timer(unsigned long data) 603 { 604 struct catc *catc = (void *) data; 605 int i; 606 607 for (i = 0; i < 8; i++) 608 catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done); 609 610 mod_timer(&catc->timer, jiffies + STATS_UPDATE); 611 } 612 613 static struct net_device_stats *catc_get_stats(struct net_device *netdev) 614 { 615 struct catc *catc = netdev_priv(netdev); 616 return &catc->stats; 617 } 618 619 /* 620 * Receive modes. Broadcast, Multicast, Promisc. 621 */ 622 623 static void catc_multicast(unsigned char *addr, u8 *multicast) 624 { 625 u32 crc; 626 627 crc = ether_crc_le(6, addr); 628 multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); 629 } 630 631 static void catc_set_multicast_list(struct net_device *netdev) 632 { 633 struct catc *catc = netdev_priv(netdev); 634 struct dev_mc_list *mc; 635 u8 broadcast[6]; 636 u8 rx = RxEnable | RxPolarity | RxMultiCast; 637 int i; 638 639 memset(broadcast, 0xff, 6); 640 memset(catc->multicast, 0, 64); 641 642 catc_multicast(broadcast, catc->multicast); 643 catc_multicast(netdev->dev_addr, catc->multicast); 644 645 if (netdev->flags & IFF_PROMISC) { 646 memset(catc->multicast, 0xff, 64); 647 rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc; 648 } 649 650 if (netdev->flags & IFF_ALLMULTI) { 651 memset(catc->multicast, 0xff, 64); 652 } else { 653 for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = mc->next) { 654 u32 crc = ether_crc_le(6, mc->dmi_addr); 655 if (!catc->is_f5u011) { 656 catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); 657 } else { 658 catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7); 659 } 660 } 661 } 662 if (!catc->is_f5u011) { 663 catc_set_reg_async(catc, RxUnit, rx); 664 catc_write_mem_async(catc, 0xfa80, catc->multicast, 64); 665 } else { 666 f5u011_mchash_async(catc, catc->multicast); 667 if (catc->rxmode[0] != rx) { 668 catc->rxmode[0] = rx; 669 dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]); 670 f5u011_rxmode_async(catc, catc->rxmode); 671 } 672 } 673 } 674 675 static void catc_get_drvinfo(struct net_device *dev, 676 struct ethtool_drvinfo *info) 677 { 678 struct catc *catc = netdev_priv(dev); 679 strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); 680 strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); 681 usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info); 682 } 683 684 static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) 685 { 686 struct catc *catc = netdev_priv(dev); 687 if (!catc->is_f5u011) 688 return -EOPNOTSUPP; 689 690 cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP; 691 cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP; 692 cmd->speed = SPEED_10; 693 cmd->duplex = DUPLEX_HALF; 694 cmd->port = PORT_TP; 695 cmd->phy_address = 0; 696 cmd->transceiver = XCVR_INTERNAL; 697 cmd->autoneg = AUTONEG_DISABLE; 698 cmd->maxtxpkt = 1; 699 cmd->maxrxpkt = 1; 700 return 0; 701 } 702 703 static struct ethtool_ops ops = { 704 .get_drvinfo = catc_get_drvinfo, 705 .get_settings = catc_get_settings, 706 .get_link = ethtool_op_get_link 707 }; 708 709 /* 710 * Open, close. 711 */ 712 713 static int catc_open(struct net_device *netdev) 714 { 715 struct catc *catc = netdev_priv(netdev); 716 int status; 717 718 catc->irq_urb->dev = catc->usbdev; 719 if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) { 720 err("submit(irq_urb) status %d", status); 721 return -1; 722 } 723 724 netif_start_queue(netdev); 725 726 if (!catc->is_f5u011) 727 mod_timer(&catc->timer, jiffies + STATS_UPDATE); 728 729 return 0; 730 } 731 732 static int catc_stop(struct net_device *netdev) 733 { 734 struct catc *catc = netdev_priv(netdev); 735 736 netif_stop_queue(netdev); 737 738 if (!catc->is_f5u011) 739 del_timer_sync(&catc->timer); 740 741 usb_kill_urb(catc->rx_urb); 742 usb_kill_urb(catc->tx_urb); 743 usb_kill_urb(catc->irq_urb); 744 usb_kill_urb(catc->ctrl_urb); 745 746 return 0; 747 } 748 749 /* 750 * USB probe, disconnect. 751 */ 752 753 static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id) 754 { 755 struct usb_device *usbdev = interface_to_usbdev(intf); 756 struct net_device *netdev; 757 struct catc *catc; 758 u8 broadcast[6]; 759 int i, pktsz; 760 761 if (usb_set_interface(usbdev, 762 intf->altsetting->desc.bInterfaceNumber, 1)) { 763 err("Can't set altsetting 1."); 764 return -EIO; 765 } 766 767 netdev = alloc_etherdev(sizeof(struct catc)); 768 if (!netdev) 769 return -ENOMEM; 770 771 catc = netdev_priv(netdev); 772 773 netdev->open = catc_open; 774 netdev->hard_start_xmit = catc_hard_start_xmit; 775 netdev->stop = catc_stop; 776 netdev->get_stats = catc_get_stats; 777 netdev->tx_timeout = catc_tx_timeout; 778 netdev->watchdog_timeo = TX_TIMEOUT; 779 netdev->set_multicast_list = catc_set_multicast_list; 780 SET_ETHTOOL_OPS(netdev, &ops); 781 782 catc->usbdev = usbdev; 783 catc->netdev = netdev; 784 785 spin_lock_init(&catc->tx_lock); 786 spin_lock_init(&catc->ctrl_lock); 787 788 init_timer(&catc->timer); 789 catc->timer.data = (long) catc; 790 catc->timer.function = catc_stats_timer; 791 792 catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); 793 catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL); 794 catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL); 795 catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL); 796 if ((!catc->ctrl_urb) || (!catc->tx_urb) || 797 (!catc->rx_urb) || (!catc->irq_urb)) { 798 err("No free urbs available."); 799 usb_free_urb(catc->ctrl_urb); 800 usb_free_urb(catc->tx_urb); 801 usb_free_urb(catc->rx_urb); 802 usb_free_urb(catc->irq_urb); 803 free_netdev(netdev); 804 return -ENOMEM; 805 } 806 807 /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */ 808 if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && 809 le16_to_cpu(usbdev->descriptor.idProduct) == 0xa && 810 le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) { 811 dbg("Testing for f5u011"); 812 catc->is_f5u011 = 1; 813 atomic_set(&catc->recq_sz, 0); 814 pktsz = RX_PKT_SZ; 815 } else { 816 pktsz = RX_MAX_BURST * (PKT_SZ + 2); 817 } 818 819 usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0), 820 NULL, NULL, 0, catc_ctrl_done, catc); 821 822 usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1), 823 NULL, 0, catc_tx_done, catc); 824 825 usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1), 826 catc->rx_buf, pktsz, catc_rx_done, catc); 827 828 usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2), 829 catc->irq_buf, 2, catc_irq_done, catc, 1); 830 831 if (!catc->is_f5u011) { 832 dbg("Checking memory size\n"); 833 834 i = 0x12345678; 835 catc_write_mem(catc, 0x7a80, &i, 4); 836 i = 0x87654321; 837 catc_write_mem(catc, 0xfa80, &i, 4); 838 catc_read_mem(catc, 0x7a80, &i, 4); 839 840 switch (i) { 841 case 0x12345678: 842 catc_set_reg(catc, TxBufCount, 8); 843 catc_set_reg(catc, RxBufCount, 32); 844 dbg("64k Memory\n"); 845 break; 846 default: 847 warn("Couldn't detect memory size, assuming 32k"); 848 case 0x87654321: 849 catc_set_reg(catc, TxBufCount, 4); 850 catc_set_reg(catc, RxBufCount, 16); 851 dbg("32k Memory\n"); 852 break; 853 } 854 855 dbg("Getting MAC from SEEROM."); 856 857 catc_get_mac(catc, netdev->dev_addr); 858 859 dbg("Setting MAC into registers."); 860 861 for (i = 0; i < 6; i++) 862 catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]); 863 864 dbg("Filling the multicast list."); 865 866 memset(broadcast, 0xff, 6); 867 catc_multicast(broadcast, catc->multicast); 868 catc_multicast(netdev->dev_addr, catc->multicast); 869 catc_write_mem(catc, 0xfa80, catc->multicast, 64); 870 871 dbg("Clearing error counters."); 872 873 for (i = 0; i < 8; i++) 874 catc_set_reg(catc, EthStats + i, 0); 875 catc->last_stats = jiffies; 876 877 dbg("Enabling."); 878 879 catc_set_reg(catc, MaxBurst, RX_MAX_BURST); 880 catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits); 881 catc_set_reg(catc, LEDCtrl, LEDLink); 882 catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast); 883 } else { 884 dbg("Performing reset\n"); 885 catc_reset(catc); 886 catc_get_mac(catc, netdev->dev_addr); 887 888 dbg("Setting RX Mode"); 889 catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast; 890 catc->rxmode[1] = 0; 891 f5u011_rxmode(catc, catc->rxmode); 892 } 893 dbg("Init done."); 894 printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, ", 895 netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate", 896 usbdev->bus->bus_name, usbdev->devpath); 897 for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]); 898 printk("%2.2x.\n", netdev->dev_addr[i]); 899 usb_set_intfdata(intf, catc); 900 901 SET_NETDEV_DEV(netdev, &intf->dev); 902 if (register_netdev(netdev) != 0) { 903 usb_set_intfdata(intf, NULL); 904 usb_free_urb(catc->ctrl_urb); 905 usb_free_urb(catc->tx_urb); 906 usb_free_urb(catc->rx_urb); 907 usb_free_urb(catc->irq_urb); 908 free_netdev(netdev); 909 return -EIO; 910 } 911 return 0; 912 } 913 914 static void catc_disconnect(struct usb_interface *intf) 915 { 916 struct catc *catc = usb_get_intfdata(intf); 917 918 usb_set_intfdata(intf, NULL); 919 if (catc) { 920 unregister_netdev(catc->netdev); 921 usb_free_urb(catc->ctrl_urb); 922 usb_free_urb(catc->tx_urb); 923 usb_free_urb(catc->rx_urb); 924 usb_free_urb(catc->irq_urb); 925 free_netdev(catc->netdev); 926 } 927 } 928 929 /* 930 * Module functions and tables. 931 */ 932 933 static struct usb_device_id catc_id_table [] = { 934 { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */ 935 { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */ 936 { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */ 937 { } 938 }; 939 940 MODULE_DEVICE_TABLE(usb, catc_id_table); 941 942 static struct usb_driver catc_driver = { 943 .name = driver_name, 944 .probe = catc_probe, 945 .disconnect = catc_disconnect, 946 .id_table = catc_id_table, 947 }; 948 949 static int __init catc_init(void) 950 { 951 int result = usb_register(&catc_driver); 952 if (result == 0) 953 info(DRIVER_VERSION " " DRIVER_DESC); 954 return result; 955 } 956 957 static void __exit catc_exit(void) 958 { 959 usb_deregister(&catc_driver); 960 } 961 962 module_init(catc_init); 963 module_exit(catc_exit); 964