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