1 /* 2 * nosy - Snoop mode driver for TI PCILynx 1394 controllers 3 * Copyright (C) 2002-2007 Kristian Høgsberg 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software Foundation, 17 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 */ 19 20 #include <linux/device.h> 21 #include <linux/errno.h> 22 #include <linux/fs.h> 23 #include <linux/init.h> 24 #include <linux/interrupt.h> 25 #include <linux/io.h> 26 #include <linux/kernel.h> 27 #include <linux/kref.h> 28 #include <linux/miscdevice.h> 29 #include <linux/module.h> 30 #include <linux/mutex.h> 31 #include <linux/pci.h> 32 #include <linux/poll.h> 33 #include <linux/sched.h> /* required for linux/wait.h */ 34 #include <linux/slab.h> 35 #include <linux/spinlock.h> 36 #include <linux/timex.h> 37 #include <linux/uaccess.h> 38 #include <linux/wait.h> 39 #include <linux/dma-mapping.h> 40 #include <linux/atomic.h> 41 #include <asm/byteorder.h> 42 43 #include "nosy.h" 44 #include "nosy-user.h" 45 46 #define TCODE_PHY_PACKET 0x10 47 #define PCI_DEVICE_ID_TI_PCILYNX 0x8000 48 49 static char driver_name[] = KBUILD_MODNAME; 50 51 /* this is the physical layout of a PCL, its size is 128 bytes */ 52 struct pcl { 53 __le32 next; 54 __le32 async_error_next; 55 u32 user_data; 56 __le32 pcl_status; 57 __le32 remaining_transfer_count; 58 __le32 next_data_buffer; 59 struct { 60 __le32 control; 61 __le32 pointer; 62 } buffer[13]; 63 }; 64 65 struct packet { 66 unsigned int length; 67 char data[0]; 68 }; 69 70 struct packet_buffer { 71 char *data; 72 size_t capacity; 73 long total_packet_count, lost_packet_count; 74 atomic_t size; 75 struct packet *head, *tail; 76 wait_queue_head_t wait; 77 }; 78 79 struct pcilynx { 80 struct pci_dev *pci_device; 81 __iomem char *registers; 82 83 struct pcl *rcv_start_pcl, *rcv_pcl; 84 __le32 *rcv_buffer; 85 86 dma_addr_t rcv_start_pcl_bus, rcv_pcl_bus, rcv_buffer_bus; 87 88 spinlock_t client_list_lock; 89 struct list_head client_list; 90 91 struct miscdevice misc; 92 struct list_head link; 93 struct kref kref; 94 }; 95 96 static inline struct pcilynx * 97 lynx_get(struct pcilynx *lynx) 98 { 99 kref_get(&lynx->kref); 100 101 return lynx; 102 } 103 104 static void 105 lynx_release(struct kref *kref) 106 { 107 kfree(container_of(kref, struct pcilynx, kref)); 108 } 109 110 static inline void 111 lynx_put(struct pcilynx *lynx) 112 { 113 kref_put(&lynx->kref, lynx_release); 114 } 115 116 struct client { 117 struct pcilynx *lynx; 118 u32 tcode_mask; 119 struct packet_buffer buffer; 120 struct list_head link; 121 }; 122 123 static DEFINE_MUTEX(card_mutex); 124 static LIST_HEAD(card_list); 125 126 static int 127 packet_buffer_init(struct packet_buffer *buffer, size_t capacity) 128 { 129 buffer->data = kmalloc(capacity, GFP_KERNEL); 130 if (buffer->data == NULL) 131 return -ENOMEM; 132 buffer->head = (struct packet *) buffer->data; 133 buffer->tail = (struct packet *) buffer->data; 134 buffer->capacity = capacity; 135 buffer->lost_packet_count = 0; 136 atomic_set(&buffer->size, 0); 137 init_waitqueue_head(&buffer->wait); 138 139 return 0; 140 } 141 142 static void 143 packet_buffer_destroy(struct packet_buffer *buffer) 144 { 145 kfree(buffer->data); 146 } 147 148 static int 149 packet_buffer_get(struct client *client, char __user *data, size_t user_length) 150 { 151 struct packet_buffer *buffer = &client->buffer; 152 size_t length; 153 char *end; 154 155 if (wait_event_interruptible(buffer->wait, 156 atomic_read(&buffer->size) > 0) || 157 list_empty(&client->lynx->link)) 158 return -ERESTARTSYS; 159 160 if (atomic_read(&buffer->size) == 0) 161 return -ENODEV; 162 163 /* FIXME: Check length <= user_length. */ 164 165 end = buffer->data + buffer->capacity; 166 length = buffer->head->length; 167 168 if (&buffer->head->data[length] < end) { 169 if (copy_to_user(data, buffer->head->data, length)) 170 return -EFAULT; 171 buffer->head = (struct packet *) &buffer->head->data[length]; 172 } else { 173 size_t split = end - buffer->head->data; 174 175 if (copy_to_user(data, buffer->head->data, split)) 176 return -EFAULT; 177 if (copy_to_user(data + split, buffer->data, length - split)) 178 return -EFAULT; 179 buffer->head = (struct packet *) &buffer->data[length - split]; 180 } 181 182 /* 183 * Decrease buffer->size as the last thing, since this is what 184 * keeps the interrupt from overwriting the packet we are 185 * retrieving from the buffer. 186 */ 187 atomic_sub(sizeof(struct packet) + length, &buffer->size); 188 189 return length; 190 } 191 192 static void 193 packet_buffer_put(struct packet_buffer *buffer, void *data, size_t length) 194 { 195 char *end; 196 197 buffer->total_packet_count++; 198 199 if (buffer->capacity < 200 atomic_read(&buffer->size) + sizeof(struct packet) + length) { 201 buffer->lost_packet_count++; 202 return; 203 } 204 205 end = buffer->data + buffer->capacity; 206 buffer->tail->length = length; 207 208 if (&buffer->tail->data[length] < end) { 209 memcpy(buffer->tail->data, data, length); 210 buffer->tail = (struct packet *) &buffer->tail->data[length]; 211 } else { 212 size_t split = end - buffer->tail->data; 213 214 memcpy(buffer->tail->data, data, split); 215 memcpy(buffer->data, data + split, length - split); 216 buffer->tail = (struct packet *) &buffer->data[length - split]; 217 } 218 219 /* Finally, adjust buffer size and wake up userspace reader. */ 220 221 atomic_add(sizeof(struct packet) + length, &buffer->size); 222 wake_up_interruptible(&buffer->wait); 223 } 224 225 static inline void 226 reg_write(struct pcilynx *lynx, int offset, u32 data) 227 { 228 writel(data, lynx->registers + offset); 229 } 230 231 static inline u32 232 reg_read(struct pcilynx *lynx, int offset) 233 { 234 return readl(lynx->registers + offset); 235 } 236 237 static inline void 238 reg_set_bits(struct pcilynx *lynx, int offset, u32 mask) 239 { 240 reg_write(lynx, offset, (reg_read(lynx, offset) | mask)); 241 } 242 243 /* 244 * Maybe the pcl programs could be set up to just append data instead 245 * of using a whole packet. 246 */ 247 static inline void 248 run_pcl(struct pcilynx *lynx, dma_addr_t pcl_bus, 249 int dmachan) 250 { 251 reg_write(lynx, DMA0_CURRENT_PCL + dmachan * 0x20, pcl_bus); 252 reg_write(lynx, DMA0_CHAN_CTRL + dmachan * 0x20, 253 DMA_CHAN_CTRL_ENABLE | DMA_CHAN_CTRL_LINK); 254 } 255 256 static int 257 set_phy_reg(struct pcilynx *lynx, int addr, int val) 258 { 259 if (addr > 15) { 260 dev_err(&lynx->pci_device->dev, 261 "PHY register address %d out of range\n", addr); 262 return -1; 263 } 264 if (val > 0xff) { 265 dev_err(&lynx->pci_device->dev, 266 "PHY register value %d out of range\n", val); 267 return -1; 268 } 269 reg_write(lynx, LINK_PHY, LINK_PHY_WRITE | 270 LINK_PHY_ADDR(addr) | LINK_PHY_WDATA(val)); 271 272 return 0; 273 } 274 275 static int 276 nosy_open(struct inode *inode, struct file *file) 277 { 278 int minor = iminor(inode); 279 struct client *client; 280 struct pcilynx *tmp, *lynx = NULL; 281 282 mutex_lock(&card_mutex); 283 list_for_each_entry(tmp, &card_list, link) 284 if (tmp->misc.minor == minor) { 285 lynx = lynx_get(tmp); 286 break; 287 } 288 mutex_unlock(&card_mutex); 289 if (lynx == NULL) 290 return -ENODEV; 291 292 client = kmalloc(sizeof *client, GFP_KERNEL); 293 if (client == NULL) 294 goto fail; 295 296 client->tcode_mask = ~0; 297 client->lynx = lynx; 298 INIT_LIST_HEAD(&client->link); 299 300 if (packet_buffer_init(&client->buffer, 128 * 1024) < 0) 301 goto fail; 302 303 file->private_data = client; 304 305 return nonseekable_open(inode, file); 306 fail: 307 kfree(client); 308 lynx_put(lynx); 309 310 return -ENOMEM; 311 } 312 313 static int 314 nosy_release(struct inode *inode, struct file *file) 315 { 316 struct client *client = file->private_data; 317 struct pcilynx *lynx = client->lynx; 318 319 spin_lock_irq(&lynx->client_list_lock); 320 list_del_init(&client->link); 321 spin_unlock_irq(&lynx->client_list_lock); 322 323 packet_buffer_destroy(&client->buffer); 324 kfree(client); 325 lynx_put(lynx); 326 327 return 0; 328 } 329 330 static unsigned int 331 nosy_poll(struct file *file, poll_table *pt) 332 { 333 struct client *client = file->private_data; 334 unsigned int ret = 0; 335 336 poll_wait(file, &client->buffer.wait, pt); 337 338 if (atomic_read(&client->buffer.size) > 0) 339 ret = POLLIN | POLLRDNORM; 340 341 if (list_empty(&client->lynx->link)) 342 ret |= POLLHUP; 343 344 return ret; 345 } 346 347 static ssize_t 348 nosy_read(struct file *file, char __user *buffer, size_t count, loff_t *offset) 349 { 350 struct client *client = file->private_data; 351 352 return packet_buffer_get(client, buffer, count); 353 } 354 355 static long 356 nosy_ioctl(struct file *file, unsigned int cmd, unsigned long arg) 357 { 358 struct client *client = file->private_data; 359 spinlock_t *client_list_lock = &client->lynx->client_list_lock; 360 struct nosy_stats stats; 361 362 switch (cmd) { 363 case NOSY_IOC_GET_STATS: 364 spin_lock_irq(client_list_lock); 365 stats.total_packet_count = client->buffer.total_packet_count; 366 stats.lost_packet_count = client->buffer.lost_packet_count; 367 spin_unlock_irq(client_list_lock); 368 369 if (copy_to_user((void __user *) arg, &stats, sizeof stats)) 370 return -EFAULT; 371 else 372 return 0; 373 374 case NOSY_IOC_START: 375 spin_lock_irq(client_list_lock); 376 list_add_tail(&client->link, &client->lynx->client_list); 377 spin_unlock_irq(client_list_lock); 378 379 return 0; 380 381 case NOSY_IOC_STOP: 382 spin_lock_irq(client_list_lock); 383 list_del_init(&client->link); 384 spin_unlock_irq(client_list_lock); 385 386 return 0; 387 388 case NOSY_IOC_FILTER: 389 spin_lock_irq(client_list_lock); 390 client->tcode_mask = arg; 391 spin_unlock_irq(client_list_lock); 392 393 return 0; 394 395 default: 396 return -EINVAL; 397 /* Flush buffer, configure filter. */ 398 } 399 } 400 401 static const struct file_operations nosy_ops = { 402 .owner = THIS_MODULE, 403 .read = nosy_read, 404 .unlocked_ioctl = nosy_ioctl, 405 .poll = nosy_poll, 406 .open = nosy_open, 407 .release = nosy_release, 408 }; 409 410 #define PHY_PACKET_SIZE 12 /* 1 payload, 1 inverse, 1 ack = 3 quadlets */ 411 412 static void 413 packet_irq_handler(struct pcilynx *lynx) 414 { 415 struct client *client; 416 u32 tcode_mask, tcode; 417 size_t length; 418 struct timeval tv; 419 420 /* FIXME: Also report rcv_speed. */ 421 422 length = __le32_to_cpu(lynx->rcv_pcl->pcl_status) & 0x00001fff; 423 tcode = __le32_to_cpu(lynx->rcv_buffer[1]) >> 4 & 0xf; 424 425 do_gettimeofday(&tv); 426 lynx->rcv_buffer[0] = (__force __le32)tv.tv_usec; 427 428 if (length == PHY_PACKET_SIZE) 429 tcode_mask = 1 << TCODE_PHY_PACKET; 430 else 431 tcode_mask = 1 << tcode; 432 433 spin_lock(&lynx->client_list_lock); 434 435 list_for_each_entry(client, &lynx->client_list, link) 436 if (client->tcode_mask & tcode_mask) 437 packet_buffer_put(&client->buffer, 438 lynx->rcv_buffer, length + 4); 439 440 spin_unlock(&lynx->client_list_lock); 441 } 442 443 static void 444 bus_reset_irq_handler(struct pcilynx *lynx) 445 { 446 struct client *client; 447 struct timeval tv; 448 449 do_gettimeofday(&tv); 450 451 spin_lock(&lynx->client_list_lock); 452 453 list_for_each_entry(client, &lynx->client_list, link) 454 packet_buffer_put(&client->buffer, &tv.tv_usec, 4); 455 456 spin_unlock(&lynx->client_list_lock); 457 } 458 459 static irqreturn_t 460 irq_handler(int irq, void *device) 461 { 462 struct pcilynx *lynx = device; 463 u32 pci_int_status; 464 465 pci_int_status = reg_read(lynx, PCI_INT_STATUS); 466 467 if (pci_int_status == ~0) 468 /* Card was ejected. */ 469 return IRQ_NONE; 470 471 if ((pci_int_status & PCI_INT_INT_PEND) == 0) 472 /* Not our interrupt, bail out quickly. */ 473 return IRQ_NONE; 474 475 if ((pci_int_status & PCI_INT_P1394_INT) != 0) { 476 u32 link_int_status; 477 478 link_int_status = reg_read(lynx, LINK_INT_STATUS); 479 reg_write(lynx, LINK_INT_STATUS, link_int_status); 480 481 if ((link_int_status & LINK_INT_PHY_BUSRESET) > 0) 482 bus_reset_irq_handler(lynx); 483 } 484 485 /* Clear the PCI_INT_STATUS register only after clearing the 486 * LINK_INT_STATUS register; otherwise the PCI_INT_P1394 will 487 * be set again immediately. */ 488 489 reg_write(lynx, PCI_INT_STATUS, pci_int_status); 490 491 if ((pci_int_status & PCI_INT_DMA0_HLT) > 0) { 492 packet_irq_handler(lynx); 493 run_pcl(lynx, lynx->rcv_start_pcl_bus, 0); 494 } 495 496 return IRQ_HANDLED; 497 } 498 499 static void 500 remove_card(struct pci_dev *dev) 501 { 502 struct pcilynx *lynx = pci_get_drvdata(dev); 503 struct client *client; 504 505 mutex_lock(&card_mutex); 506 list_del_init(&lynx->link); 507 misc_deregister(&lynx->misc); 508 mutex_unlock(&card_mutex); 509 510 reg_write(lynx, PCI_INT_ENABLE, 0); 511 free_irq(lynx->pci_device->irq, lynx); 512 513 spin_lock_irq(&lynx->client_list_lock); 514 list_for_each_entry(client, &lynx->client_list, link) 515 wake_up_interruptible(&client->buffer.wait); 516 spin_unlock_irq(&lynx->client_list_lock); 517 518 pci_free_consistent(lynx->pci_device, sizeof(struct pcl), 519 lynx->rcv_start_pcl, lynx->rcv_start_pcl_bus); 520 pci_free_consistent(lynx->pci_device, sizeof(struct pcl), 521 lynx->rcv_pcl, lynx->rcv_pcl_bus); 522 pci_free_consistent(lynx->pci_device, PAGE_SIZE, 523 lynx->rcv_buffer, lynx->rcv_buffer_bus); 524 525 iounmap(lynx->registers); 526 pci_disable_device(dev); 527 lynx_put(lynx); 528 } 529 530 #define RCV_BUFFER_SIZE (16 * 1024) 531 532 static int __devinit 533 add_card(struct pci_dev *dev, const struct pci_device_id *unused) 534 { 535 struct pcilynx *lynx; 536 u32 p, end; 537 int ret, i; 538 539 if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) { 540 dev_err(&dev->dev, 541 "DMA address limits not supported for PCILynx hardware\n"); 542 return -ENXIO; 543 } 544 if (pci_enable_device(dev)) { 545 dev_err(&dev->dev, "Failed to enable PCILynx hardware\n"); 546 return -ENXIO; 547 } 548 pci_set_master(dev); 549 550 lynx = kzalloc(sizeof *lynx, GFP_KERNEL); 551 if (lynx == NULL) { 552 dev_err(&dev->dev, "Failed to allocate control structure\n"); 553 ret = -ENOMEM; 554 goto fail_disable; 555 } 556 lynx->pci_device = dev; 557 pci_set_drvdata(dev, lynx); 558 559 spin_lock_init(&lynx->client_list_lock); 560 INIT_LIST_HEAD(&lynx->client_list); 561 kref_init(&lynx->kref); 562 563 lynx->registers = ioremap_nocache(pci_resource_start(dev, 0), 564 PCILYNX_MAX_REGISTER); 565 566 lynx->rcv_start_pcl = pci_alloc_consistent(lynx->pci_device, 567 sizeof(struct pcl), &lynx->rcv_start_pcl_bus); 568 lynx->rcv_pcl = pci_alloc_consistent(lynx->pci_device, 569 sizeof(struct pcl), &lynx->rcv_pcl_bus); 570 lynx->rcv_buffer = pci_alloc_consistent(lynx->pci_device, 571 RCV_BUFFER_SIZE, &lynx->rcv_buffer_bus); 572 if (lynx->rcv_start_pcl == NULL || 573 lynx->rcv_pcl == NULL || 574 lynx->rcv_buffer == NULL) { 575 dev_err(&dev->dev, "Failed to allocate receive buffer\n"); 576 ret = -ENOMEM; 577 goto fail_deallocate; 578 } 579 lynx->rcv_start_pcl->next = cpu_to_le32(lynx->rcv_pcl_bus); 580 lynx->rcv_pcl->next = cpu_to_le32(PCL_NEXT_INVALID); 581 lynx->rcv_pcl->async_error_next = cpu_to_le32(PCL_NEXT_INVALID); 582 583 lynx->rcv_pcl->buffer[0].control = 584 cpu_to_le32(PCL_CMD_RCV | PCL_BIGENDIAN | 2044); 585 lynx->rcv_pcl->buffer[0].pointer = 586 cpu_to_le32(lynx->rcv_buffer_bus + 4); 587 p = lynx->rcv_buffer_bus + 2048; 588 end = lynx->rcv_buffer_bus + RCV_BUFFER_SIZE; 589 for (i = 1; p < end; i++, p += 2048) { 590 lynx->rcv_pcl->buffer[i].control = 591 cpu_to_le32(PCL_CMD_RCV | PCL_BIGENDIAN | 2048); 592 lynx->rcv_pcl->buffer[i].pointer = cpu_to_le32(p); 593 } 594 lynx->rcv_pcl->buffer[i - 1].control |= cpu_to_le32(PCL_LAST_BUFF); 595 596 reg_set_bits(lynx, MISC_CONTROL, MISC_CONTROL_SWRESET); 597 /* Fix buggy cards with autoboot pin not tied low: */ 598 reg_write(lynx, DMA0_CHAN_CTRL, 0); 599 reg_write(lynx, DMA_GLOBAL_REGISTER, 0x00 << 24); 600 601 #if 0 602 /* now, looking for PHY register set */ 603 if ((get_phy_reg(lynx, 2) & 0xe0) == 0xe0) { 604 lynx->phyic.reg_1394a = 1; 605 PRINT(KERN_INFO, lynx->id, 606 "found 1394a conform PHY (using extended register set)"); 607 lynx->phyic.vendor = get_phy_vendorid(lynx); 608 lynx->phyic.product = get_phy_productid(lynx); 609 } else { 610 lynx->phyic.reg_1394a = 0; 611 PRINT(KERN_INFO, lynx->id, "found old 1394 PHY"); 612 } 613 #endif 614 615 /* Setup the general receive FIFO max size. */ 616 reg_write(lynx, FIFO_SIZES, 255); 617 618 reg_set_bits(lynx, PCI_INT_ENABLE, PCI_INT_DMA_ALL); 619 620 reg_write(lynx, LINK_INT_ENABLE, 621 LINK_INT_PHY_TIME_OUT | LINK_INT_PHY_REG_RCVD | 622 LINK_INT_PHY_BUSRESET | LINK_INT_IT_STUCK | 623 LINK_INT_AT_STUCK | LINK_INT_SNTRJ | 624 LINK_INT_TC_ERR | LINK_INT_GRF_OVER_FLOW | 625 LINK_INT_ITF_UNDER_FLOW | LINK_INT_ATF_UNDER_FLOW); 626 627 /* Disable the L flag in self ID packets. */ 628 set_phy_reg(lynx, 4, 0); 629 630 /* Put this baby into snoop mode */ 631 reg_set_bits(lynx, LINK_CONTROL, LINK_CONTROL_SNOOP_ENABLE); 632 633 run_pcl(lynx, lynx->rcv_start_pcl_bus, 0); 634 635 if (request_irq(dev->irq, irq_handler, IRQF_SHARED, 636 driver_name, lynx)) { 637 dev_err(&dev->dev, 638 "Failed to allocate shared interrupt %d\n", dev->irq); 639 ret = -EIO; 640 goto fail_deallocate; 641 } 642 643 lynx->misc.parent = &dev->dev; 644 lynx->misc.minor = MISC_DYNAMIC_MINOR; 645 lynx->misc.name = "nosy"; 646 lynx->misc.fops = &nosy_ops; 647 648 mutex_lock(&card_mutex); 649 ret = misc_register(&lynx->misc); 650 if (ret) { 651 dev_err(&dev->dev, "Failed to register misc char device\n"); 652 mutex_unlock(&card_mutex); 653 goto fail_free_irq; 654 } 655 list_add_tail(&lynx->link, &card_list); 656 mutex_unlock(&card_mutex); 657 658 dev_info(&dev->dev, 659 "Initialized PCILynx IEEE1394 card, irq=%d\n", dev->irq); 660 661 return 0; 662 663 fail_free_irq: 664 reg_write(lynx, PCI_INT_ENABLE, 0); 665 free_irq(lynx->pci_device->irq, lynx); 666 667 fail_deallocate: 668 if (lynx->rcv_start_pcl) 669 pci_free_consistent(lynx->pci_device, sizeof(struct pcl), 670 lynx->rcv_start_pcl, lynx->rcv_start_pcl_bus); 671 if (lynx->rcv_pcl) 672 pci_free_consistent(lynx->pci_device, sizeof(struct pcl), 673 lynx->rcv_pcl, lynx->rcv_pcl_bus); 674 if (lynx->rcv_buffer) 675 pci_free_consistent(lynx->pci_device, PAGE_SIZE, 676 lynx->rcv_buffer, lynx->rcv_buffer_bus); 677 iounmap(lynx->registers); 678 kfree(lynx); 679 680 fail_disable: 681 pci_disable_device(dev); 682 683 return ret; 684 } 685 686 static struct pci_device_id pci_table[] __devinitdata = { 687 { 688 .vendor = PCI_VENDOR_ID_TI, 689 .device = PCI_DEVICE_ID_TI_PCILYNX, 690 .subvendor = PCI_ANY_ID, 691 .subdevice = PCI_ANY_ID, 692 }, 693 { } /* Terminating entry */ 694 }; 695 696 MODULE_DEVICE_TABLE(pci, pci_table); 697 698 static struct pci_driver lynx_pci_driver = { 699 .name = driver_name, 700 .id_table = pci_table, 701 .probe = add_card, 702 .remove = remove_card, 703 }; 704 705 module_pci_driver(lynx_pci_driver); 706 707 MODULE_AUTHOR("Kristian Hoegsberg"); 708 MODULE_DESCRIPTION("Snoop mode driver for TI pcilynx 1394 controllers"); 709 MODULE_LICENSE("GPL"); 710