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 62MODULE_AUTHOR(DRIVER_AUTHOR); 63MODULE_DESCRIPTION(DRIVER_DESC); 64MODULE_LICENSE("GPL"); 65 66static 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 84enum 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 101enum 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 115enum eth_stats { 116 TxSingleColl = 0x00, 117 TxMultiColl = 0x02, 118 TxExcessColl = 0x04, 119 RxFramErr = 0x06, 120}; 121 122enum op_mode_bits { 123 Op3MemWaits = 0x03, 124 OpLenInclude = 0x08, 125 OpRxMerge = 0x10, 126 OpTxMerge = 0x20, 127 OpWin95bugfix = 0x40, 128 OpLoopback = 0x80, 129}; 130 131enum 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 140enum led_values { 141 LEDFast = 0x01, 142 LEDSlow = 0x02, 143 LEDFlash = 0x03, 144 LEDPulse = 0x04, 145 LEDLink = 0x08, 146}; 147 148enum 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 162struct 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 225static 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 289static 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 err("submit(rx_urb) status %d", res); 342 } 343 } 344 } 345resubmit: 346 res = usb_submit_urb (urb, GFP_ATOMIC); 347 if (res) 348 err ("can't resubmit intr, %s-%s, status %d", 349 catc->usbdev->bus->bus_name, 350 catc->usbdev->devpath, res); 351} 352 353/* 354 * Transmit routines. 355 */ 356 357static int catc_tx_run(struct catc *catc) 358{ 359 int status; 360 361 if (catc->is_f5u011) 362 catc->tx_ptr = (catc->tx_ptr + 63) & ~63; 363 364 catc->tx_urb->transfer_buffer_length = catc->tx_ptr; 365 catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx]; 366 catc->tx_urb->dev = catc->usbdev; 367 368 if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0) 369 err("submit(tx_urb), status %d", status); 370 371 catc->tx_idx = !catc->tx_idx; 372 catc->tx_ptr = 0; 373 374 catc->netdev->trans_start = jiffies; 375 return status; 376} 377 378static void catc_tx_done(struct urb *urb) 379{ 380 struct catc *catc = urb->context; 381 unsigned long flags; 382 int r, status = urb->status; 383 384 if (status == -ECONNRESET) { 385 dbg("Tx Reset."); 386 urb->status = 0; 387 catc->netdev->trans_start = jiffies; 388 catc->netdev->stats.tx_errors++; 389 clear_bit(TX_RUNNING, &catc->flags); 390 netif_wake_queue(catc->netdev); 391 return; 392 } 393 394 if (status) { 395 dbg("tx_done, status %d, length %d", status, urb->actual_length); 396 return; 397 } 398 399 spin_lock_irqsave(&catc->tx_lock, flags); 400 401 if (catc->tx_ptr) { 402 r = catc_tx_run(catc); 403 if (unlikely(r < 0)) 404 clear_bit(TX_RUNNING, &catc->flags); 405 } else { 406 clear_bit(TX_RUNNING, &catc->flags); 407 } 408 409 netif_wake_queue(catc->netdev); 410 411 spin_unlock_irqrestore(&catc->tx_lock, flags); 412} 413 414static netdev_tx_t catc_start_xmit(struct sk_buff *skb, 415 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->netdev->stats.tx_bytes += skb->len; 447 catc->netdev->stats.tx_packets++; 448 } 449 450 dev_kfree_skb(skb); 451 452 return NETDEV_TX_OK; 453} 454 455static 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 467static 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 475static 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 502static 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 536static 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 575static 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->netdev->stats.collisions += data - last; 592 break; 593 case TxExcessColl: 594 catc->netdev->stats.tx_aborted_errors += data - last; 595 catc->netdev->stats.tx_errors += data - last; 596 break; 597 case RxFramErr: 598 catc->netdev->stats.rx_frame_errors += data - last; 599 catc->netdev->stats.rx_errors += data - last; 600 break; 601 } 602 603 catc->stats_vals[index >> 1] = data; 604} 605 606static 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/* 618 * Receive modes. Broadcast, Multicast, Promisc. 619 */ 620 621static void catc_multicast(unsigned char *addr, u8 *multicast) 622{ 623 u32 crc; 624 625 crc = ether_crc_le(6, addr); 626 multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); 627} 628 629static void catc_set_multicast_list(struct net_device *netdev) 630{ 631 struct catc *catc = netdev_priv(netdev); 632 struct netdev_hw_addr *ha; 633 u8 broadcast[6]; 634 u8 rx = RxEnable | RxPolarity | RxMultiCast; 635 636 memset(broadcast, 0xff, 6); 637 memset(catc->multicast, 0, 64); 638 639 catc_multicast(broadcast, catc->multicast); 640 catc_multicast(netdev->dev_addr, catc->multicast); 641 642 if (netdev->flags & IFF_PROMISC) { 643 memset(catc->multicast, 0xff, 64); 644 rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc; 645 } 646 647 if (netdev->flags & IFF_ALLMULTI) { 648 memset(catc->multicast, 0xff, 64); 649 } else { 650 netdev_for_each_mc_addr(ha, netdev) { 651 u32 crc = ether_crc_le(6, ha->addr); 652 if (!catc->is_f5u011) { 653 catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); 654 } else { 655 catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7); 656 } 657 } 658 } 659 if (!catc->is_f5u011) { 660 catc_set_reg_async(catc, RxUnit, rx); 661 catc_write_mem_async(catc, 0xfa80, catc->multicast, 64); 662 } else { 663 f5u011_mchash_async(catc, catc->multicast); 664 if (catc->rxmode[0] != rx) { 665 catc->rxmode[0] = rx; 666 dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]); 667 f5u011_rxmode_async(catc, catc->rxmode); 668 } 669 } 670} 671 672static void catc_get_drvinfo(struct net_device *dev, 673 struct ethtool_drvinfo *info) 674{ 675 struct catc *catc = netdev_priv(dev); 676 strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); 677 strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); 678 usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info); 679} 680 681static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) 682{ 683 struct catc *catc = netdev_priv(dev); 684 if (!catc->is_f5u011) 685 return -EOPNOTSUPP; 686 687 cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP; 688 cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP; 689 cmd->speed = SPEED_10; 690 cmd->duplex = DUPLEX_HALF; 691 cmd->port = PORT_TP; 692 cmd->phy_address = 0; 693 cmd->transceiver = XCVR_INTERNAL; 694 cmd->autoneg = AUTONEG_DISABLE; 695 cmd->maxtxpkt = 1; 696 cmd->maxrxpkt = 1; 697 return 0; 698} 699 700static const struct ethtool_ops ops = { 701 .get_drvinfo = catc_get_drvinfo, 702 .get_settings = catc_get_settings, 703 .get_link = ethtool_op_get_link 704}; 705 706/* 707 * Open, close. 708 */ 709 710static int catc_open(struct net_device *netdev) 711{ 712 struct catc *catc = netdev_priv(netdev); 713 int status; 714 715 catc->irq_urb->dev = catc->usbdev; 716 if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) { 717 err("submit(irq_urb) status %d", status); 718 return -1; 719 } 720 721 netif_start_queue(netdev); 722 723 if (!catc->is_f5u011) 724 mod_timer(&catc->timer, jiffies + STATS_UPDATE); 725 726 return 0; 727} 728 729static int catc_stop(struct net_device *netdev) 730{ 731 struct catc *catc = netdev_priv(netdev); 732 733 netif_stop_queue(netdev); 734 735 if (!catc->is_f5u011) 736 del_timer_sync(&catc->timer); 737 738 usb_kill_urb(catc->rx_urb); 739 usb_kill_urb(catc->tx_urb); 740 usb_kill_urb(catc->irq_urb); 741 usb_kill_urb(catc->ctrl_urb); 742 743 return 0; 744} 745 746static const struct net_device_ops catc_netdev_ops = { 747 .ndo_open = catc_open, 748 .ndo_stop = catc_stop, 749 .ndo_start_xmit = catc_start_xmit, 750 751 .ndo_tx_timeout = catc_tx_timeout, 752 .ndo_set_multicast_list = catc_set_multicast_list, 753 .ndo_change_mtu = eth_change_mtu, 754 .ndo_set_mac_address = eth_mac_addr, 755 .ndo_validate_addr = eth_validate_addr, 756}; 757 758/* 759 * USB probe, disconnect. 760 */ 761 762static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id) 763{ 764 struct usb_device *usbdev = interface_to_usbdev(intf); 765 struct net_device *netdev; 766 struct catc *catc; 767 u8 broadcast[6]; 768 int i, pktsz; 769 770 if (usb_set_interface(usbdev, 771 intf->altsetting->desc.bInterfaceNumber, 1)) { 772 err("Can't set altsetting 1."); 773 return -EIO; 774 } 775 776 netdev = alloc_etherdev(sizeof(struct catc)); 777 if (!netdev) 778 return -ENOMEM; 779 780 catc = netdev_priv(netdev); 781 782 netdev->netdev_ops = &catc_netdev_ops; 783 netdev->watchdog_timeo = TX_TIMEOUT; 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, %pM.\n", 900 netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate", 901 usbdev->bus->bus_name, usbdev->devpath, netdev->dev_addr); 902 usb_set_intfdata(intf, catc); 903 904 SET_NETDEV_DEV(netdev, &intf->dev); 905 if (register_netdev(netdev) != 0) { 906 usb_set_intfdata(intf, NULL); 907 usb_free_urb(catc->ctrl_urb); 908 usb_free_urb(catc->tx_urb); 909 usb_free_urb(catc->rx_urb); 910 usb_free_urb(catc->irq_urb); 911 free_netdev(netdev); 912 return -EIO; 913 } 914 return 0; 915} 916 917static void catc_disconnect(struct usb_interface *intf) 918{ 919 struct catc *catc = usb_get_intfdata(intf); 920 921 usb_set_intfdata(intf, NULL); 922 if (catc) { 923 unregister_netdev(catc->netdev); 924 usb_free_urb(catc->ctrl_urb); 925 usb_free_urb(catc->tx_urb); 926 usb_free_urb(catc->rx_urb); 927 usb_free_urb(catc->irq_urb); 928 free_netdev(catc->netdev); 929 } 930} 931 932/* 933 * Module functions and tables. 934 */ 935 936static struct usb_device_id catc_id_table [] = { 937 { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */ 938 { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */ 939 { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */ 940 { } 941}; 942 943MODULE_DEVICE_TABLE(usb, catc_id_table); 944 945static struct usb_driver catc_driver = { 946 .name = driver_name, 947 .probe = catc_probe, 948 .disconnect = catc_disconnect, 949 .id_table = catc_id_table, 950}; 951 952static int __init catc_init(void) 953{ 954 int result = usb_register(&catc_driver); 955 if (result == 0) 956 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":" 957 DRIVER_DESC "\n"); 958 return result; 959} 960 961static void __exit catc_exit(void) 962{ 963 usb_deregister(&catc_driver); 964} 965 966module_init(catc_init); 967module_exit(catc_exit); 968