Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
[linux-2.6.git] / drivers / firewire / nosy.c
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
40 #include <asm/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, 0xffffffff)) {
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 static struct pci_driver lynx_pci_driver = {
697         .name =         driver_name,
698         .id_table =     pci_table,
699         .probe =        add_card,
700         .remove =       remove_card,
701 };
702
703 MODULE_AUTHOR("Kristian Hoegsberg");
704 MODULE_DESCRIPTION("Snoop mode driver for TI pcilynx 1394 controllers");
705 MODULE_LICENSE("GPL");
706 MODULE_DEVICE_TABLE(pci, pci_table);
707
708 static int __init nosy_init(void)
709 {
710         return pci_register_driver(&lynx_pci_driver);
711 }
712
713 static void __exit nosy_cleanup(void)
714 {
715         pci_unregister_driver(&lynx_pci_driver);
716
717         pr_info("Unloaded %s\n", driver_name);
718 }
719
720 module_init(nosy_init);
721 module_exit(nosy_cleanup);