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Linux 2.6.34-rc3
[pohmelfs.git] / drivers / media / video / saa7134 / saa7134-core.c
bloba7ad7810fddcc96454abcc1f806c7d289cd2cb79
1 /*
2 *
3 * device driver for philips saa7134 based TV cards
4 * driver core
5 *
6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23 #include <linux/init.h>
24 #include <linux/list.h>
25 #include <linux/module.h>
26 #include <linux/kernel.h>
27 #include <linux/slab.h>
28 #include <linux/kmod.h>
29 #include <linux/sound.h>
30 #include <linux/interrupt.h>
31 #include <linux/delay.h>
32 #include <linux/mutex.h>
33 #include <linux/dma-mapping.h>
34 #include <linux/pm.h>
35
36 #include "saa7134-reg.h"
37 #include "saa7134.h"
38
39 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
40 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
41 MODULE_LICENSE("GPL");
42
43 /* ------------------------------------------------------------------ */
44
45 static unsigned int irq_debug;
46 module_param(irq_debug, int, 0644);
47 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
48
49 static unsigned int core_debug;
50 module_param(core_debug, int, 0644);
51 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
52
53 static unsigned int gpio_tracking;
54 module_param(gpio_tracking, int, 0644);
55 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
56
57 static unsigned int alsa = 1;
58 module_param(alsa, int, 0644);
59 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
60
61 static unsigned int latency = UNSET;
62 module_param(latency, int, 0444);
63 MODULE_PARM_DESC(latency,"pci latency timer");
64
65 int saa7134_no_overlay=-1;
66 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
67 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
68 " [some VIA/SIS chipsets are known to have problem with overlay]");
69
70 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
71 static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
72 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
73 static unsigned int tuner[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
74 static unsigned int card[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
75
76
77 module_param_array(video_nr, int, NULL, 0444);
78 module_param_array(vbi_nr, int, NULL, 0444);
79 module_param_array(radio_nr, int, NULL, 0444);
80 module_param_array(tuner, int, NULL, 0444);
81 module_param_array(card, int, NULL, 0444);
82
83 MODULE_PARM_DESC(video_nr, "video device number");
84 MODULE_PARM_DESC(vbi_nr, "vbi device number");
85 MODULE_PARM_DESC(radio_nr, "radio device number");
86 MODULE_PARM_DESC(tuner, "tuner type");
87 MODULE_PARM_DESC(card, "card type");
88
89 DEFINE_MUTEX(saa7134_devlist_lock);
90 EXPORT_SYMBOL(saa7134_devlist_lock);
91 LIST_HEAD(saa7134_devlist);
92 EXPORT_SYMBOL(saa7134_devlist);
93 static LIST_HEAD(mops_list);
94 static unsigned int saa7134_devcount;
95
96 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
97 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
98
99 #define dprintk(fmt, arg...) if (core_debug) \
100 printk(KERN_DEBUG "%s/core: " fmt, dev->name , ## arg)
101
102 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
103 {
104 unsigned long mode,status;
105
106 if (!gpio_tracking)
107 return;
108 /* rising SAA7134_GPIO_GPRESCAN reads the status */
109 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
110 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
111 mode = saa_readl(SAA7134_GPIO_GPMODE0 >> 2) & 0xfffffff;
112 status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
113 printk(KERN_DEBUG
114 "%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
115 dev->name, mode, (~mode) & status, mode & status, msg);
116 }
117
118 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
119 {
120 u32 index, bitval;
121
122 index = 1 << bit_no;
123 switch (value) {
124 case 0: /* static value */
125 case 1: dprintk("setting GPIO%d to static %d\n", bit_no, value);
126 /* turn sync mode off if necessary */
127 if (index & 0x00c00000)
128 saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
129 if (value)
130 bitval = index;
131 else
132 bitval = 0;
133 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
134 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
135 break;
136 case 3: /* tristate */
137 dprintk("setting GPIO%d to tristate\n", bit_no);
138 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
139 break;
140 }
141 }
142
143 /* ------------------------------------------------------------------ */
144
145
146 /* ----------------------------------------------------------- */
147 /* delayed request_module */
148
149 #if defined(CONFIG_MODULES) && defined(MODULE)
150
151 static void request_module_async(struct work_struct *work){
152 struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
153 if (card_is_empress(dev))
154 request_module("saa7134-empress");
155 if (card_is_dvb(dev))
156 request_module("saa7134-dvb");
157 if (alsa) {
158 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
159 request_module("saa7134-alsa");
160 }
161 }
162
163 static void request_submodules(struct saa7134_dev *dev)
164 {
165 INIT_WORK(&dev->request_module_wk, request_module_async);
166 schedule_work(&dev->request_module_wk);
167 }
168
169 #else
170 #define request_submodules(dev)
171 #endif /* CONFIG_MODULES */
172
173 /* ------------------------------------------------------------------ */
174
175 /* nr of (saa7134-)pages for the given buffer size */
176 static int saa7134_buffer_pages(int size)
177 {
178 size = PAGE_ALIGN(size);
179 size += PAGE_SIZE; /* for non-page-aligned buffers */
180 size /= 4096;
181 return size;
182 }
183
184 /* calc max # of buffers from size (must not exceed the 4MB virtual
185 * address space per DMA channel) */
186 int saa7134_buffer_count(unsigned int size, unsigned int count)
187 {
188 unsigned int maxcount;
189
190 maxcount = 1024 / saa7134_buffer_pages(size);
191 if (count > maxcount)
192 count = maxcount;
193 return count;
194 }
195
196 int saa7134_buffer_startpage(struct saa7134_buf *buf)
197 {
198 return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
199 }
200
201 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
202 {
203 unsigned long base;
204 struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
205
206 base = saa7134_buffer_startpage(buf) * 4096;
207 base += dma->sglist[0].offset;
208 return base;
209 }
210
211 /* ------------------------------------------------------------------ */
212
213 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
214 {
215 __le32 *cpu;
216 dma_addr_t dma_addr = 0;
217
218 cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
219 if (NULL == cpu)
220 return -ENOMEM;
221 pt->size = SAA7134_PGTABLE_SIZE;
222 pt->cpu = cpu;
223 pt->dma = dma_addr;
224 return 0;
225 }
226
227 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
228 struct scatterlist *list, unsigned int length,
229 unsigned int startpage)
230 {
231 __le32 *ptr;
232 unsigned int i,p;
233
234 BUG_ON(NULL == pt || NULL == pt->cpu);
235
236 ptr = pt->cpu + startpage;
237 for (i = 0; i < length; i++, list++)
238 for (p = 0; p * 4096 < list->length; p++, ptr++)
239 *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
240 return 0;
241 }
242
243 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
244 {
245 if (NULL == pt->cpu)
246 return;
247 pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
248 pt->cpu = NULL;
249 }
250
251 /* ------------------------------------------------------------------ */
252
253 void saa7134_dma_free(struct videobuf_queue *q,struct saa7134_buf *buf)
254 {
255 struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
256 BUG_ON(in_interrupt());
257
258 videobuf_waiton(&buf->vb,0,0);
259 videobuf_dma_unmap(q, dma);
260 videobuf_dma_free(dma);
261 buf->vb.state = VIDEOBUF_NEEDS_INIT;
262 }
263
264 /* ------------------------------------------------------------------ */
265
266 int saa7134_buffer_queue(struct saa7134_dev *dev,
267 struct saa7134_dmaqueue *q,
268 struct saa7134_buf *buf)
269 {
270 struct saa7134_buf *next = NULL;
271
272 assert_spin_locked(&dev->slock);
273 dprintk("buffer_queue %p\n",buf);
274 if (NULL == q->curr) {
275 if (!q->need_two) {
276 q->curr = buf;
277 buf->activate(dev,buf,NULL);
278 } else if (list_empty(&q->queue)) {
279 list_add_tail(&buf->vb.queue,&q->queue);
280 buf->vb.state = VIDEOBUF_QUEUED;
281 } else {
282 next = list_entry(q->queue.next,struct saa7134_buf,
283 vb.queue);
284 q->curr = buf;
285 buf->activate(dev,buf,next);
286 }
287 } else {
288 list_add_tail(&buf->vb.queue,&q->queue);
289 buf->vb.state = VIDEOBUF_QUEUED;
290 }
291 return 0;
292 }
293
294 void saa7134_buffer_finish(struct saa7134_dev *dev,
295 struct saa7134_dmaqueue *q,
296 unsigned int state)
297 {
298 assert_spin_locked(&dev->slock);
299 dprintk("buffer_finish %p\n",q->curr);
300
301 /* finish current buffer */
302 q->curr->vb.state = state;
303 do_gettimeofday(&q->curr->vb.ts);
304 wake_up(&q->curr->vb.done);
305 q->curr = NULL;
306 }
307
308 void saa7134_buffer_next(struct saa7134_dev *dev,
309 struct saa7134_dmaqueue *q)
310 {
311 struct saa7134_buf *buf,*next = NULL;
312
313 assert_spin_locked(&dev->slock);
314 BUG_ON(NULL != q->curr);
315
316 if (!list_empty(&q->queue)) {
317 /* activate next one from queue */
318 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
319 dprintk("buffer_next %p [prev=%p/next=%p]\n",
320 buf,q->queue.prev,q->queue.next);
321 list_del(&buf->vb.queue);
322 if (!list_empty(&q->queue))
323 next = list_entry(q->queue.next,struct saa7134_buf,
324 vb.queue);
325 q->curr = buf;
326 buf->activate(dev,buf,next);
327 dprintk("buffer_next #2 prev=%p/next=%p\n",
328 q->queue.prev,q->queue.next);
329 } else {
330 /* nothing to do -- just stop DMA */
331 dprintk("buffer_next %p\n",NULL);
332 saa7134_set_dmabits(dev);
333 del_timer(&q->timeout);
334
335 if (card_has_mpeg(dev))
336 if (dev->ts_started)
337 saa7134_ts_stop(dev);
338 }
339 }
340
341 void saa7134_buffer_timeout(unsigned long data)
342 {
343 struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
344 struct saa7134_dev *dev = q->dev;
345 unsigned long flags;
346
347 spin_lock_irqsave(&dev->slock,flags);
348
349 /* try to reset the hardware (SWRST) */
350 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
351 saa_writeb(SAA7134_REGION_ENABLE, 0x80);
352 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
353
354 /* flag current buffer as failed,
355 try to start over with the next one. */
356 if (q->curr) {
357 dprintk("timeout on %p\n",q->curr);
358 saa7134_buffer_finish(dev,q,VIDEOBUF_ERROR);
359 }
360 saa7134_buffer_next(dev,q);
361 spin_unlock_irqrestore(&dev->slock,flags);
362 }
363
364 /* ------------------------------------------------------------------ */
365
366 int saa7134_set_dmabits(struct saa7134_dev *dev)
367 {
368 u32 split, task=0, ctrl=0, irq=0;
369 enum v4l2_field cap = V4L2_FIELD_ANY;
370 enum v4l2_field ov = V4L2_FIELD_ANY;
371
372 assert_spin_locked(&dev->slock);
373
374 if (dev->insuspend)
375 return 0;
376
377 /* video capture -- dma 0 + video task A */
378 if (dev->video_q.curr) {
379 task |= 0x01;
380 ctrl |= SAA7134_MAIN_CTRL_TE0;
381 irq |= SAA7134_IRQ1_INTE_RA0_1 |
382 SAA7134_IRQ1_INTE_RA0_0;
383 cap = dev->video_q.curr->vb.field;
384 }
385
386 /* video capture -- dma 1+2 (planar modes) */
387 if (dev->video_q.curr &&
388 dev->video_q.curr->fmt->planar) {
389 ctrl |= SAA7134_MAIN_CTRL_TE4 |
390 SAA7134_MAIN_CTRL_TE5;
391 }
392
393 /* screen overlay -- dma 0 + video task B */
394 if (dev->ovenable) {
395 task |= 0x10;
396 ctrl |= SAA7134_MAIN_CTRL_TE1;
397 ov = dev->ovfield;
398 }
399
400 /* vbi capture -- dma 0 + vbi task A+B */
401 if (dev->vbi_q.curr) {
402 task |= 0x22;
403 ctrl |= SAA7134_MAIN_CTRL_TE2 |
404 SAA7134_MAIN_CTRL_TE3;
405 irq |= SAA7134_IRQ1_INTE_RA0_7 |
406 SAA7134_IRQ1_INTE_RA0_6 |
407 SAA7134_IRQ1_INTE_RA0_5 |
408 SAA7134_IRQ1_INTE_RA0_4;
409 }
410
411 /* audio capture -- dma 3 */
412 if (dev->dmasound.dma_running) {
413 ctrl |= SAA7134_MAIN_CTRL_TE6;
414 irq |= SAA7134_IRQ1_INTE_RA3_1 |
415 SAA7134_IRQ1_INTE_RA3_0;
416 }
417
418 /* TS capture -- dma 5 */
419 if (dev->ts_q.curr) {
420 ctrl |= SAA7134_MAIN_CTRL_TE5;
421 irq |= SAA7134_IRQ1_INTE_RA2_1 |
422 SAA7134_IRQ1_INTE_RA2_0;
423 }
424
425 /* set task conditions + field handling */
426 if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
427 /* default config -- use full frames */
428 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
429 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
430 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02);
431 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02);
432 split = 0;
433 } else {
434 /* split fields between tasks */
435 if (V4L2_FIELD_TOP == cap) {
436 /* odd A, even B, repeat */
437 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
438 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
439 } else {
440 /* odd B, even A, repeat */
441 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
442 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
443 }
444 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01);
445 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01);
446 split = 1;
447 }
448
449 /* irqs */
450 saa_writeb(SAA7134_REGION_ENABLE, task);
451 saa_writel(SAA7134_IRQ1, irq);
452 saa_andorl(SAA7134_MAIN_CTRL,
453 SAA7134_MAIN_CTRL_TE0 |
454 SAA7134_MAIN_CTRL_TE1 |
455 SAA7134_MAIN_CTRL_TE2 |
456 SAA7134_MAIN_CTRL_TE3 |
457 SAA7134_MAIN_CTRL_TE4 |
458 SAA7134_MAIN_CTRL_TE5 |
459 SAA7134_MAIN_CTRL_TE6,
460 ctrl);
461 dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
462 task, ctrl, irq, split ? "no" : "yes");
463
464 return 0;
465 }
466
467 /* ------------------------------------------------------------------ */
468 /* IRQ handler + helpers */
469
470 static char *irqbits[] = {
471 "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
472 "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
473 "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
474 "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
475 };
476 #define IRQBITS ARRAY_SIZE(irqbits)
477
478 static void print_irqstatus(struct saa7134_dev *dev, int loop,
479 unsigned long report, unsigned long status)
480 {
481 unsigned int i;
482
483 printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
484 dev->name,loop,jiffies,report,status);
485 for (i = 0; i < IRQBITS; i++) {
486 if (!(report & (1 << i)))
487 continue;
488 printk(" %s",irqbits[i]);
489 }
490 if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
491 printk(" | RA0=%s,%s,%s,%ld",
492 (status & 0x40) ? "vbi" : "video",
493 (status & 0x20) ? "b" : "a",
494 (status & 0x10) ? "odd" : "even",
495 (status & 0x0f));
496 }
497 printk("\n");
498 }
499
500 static irqreturn_t saa7134_irq(int irq, void *dev_id)
501 {
502 struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
503 unsigned long report,status;
504 int loop, handled = 0;
505
506 if (dev->insuspend)
507 goto out;
508
509 for (loop = 0; loop < 10; loop++) {
510 report = saa_readl(SAA7134_IRQ_REPORT);
511 status = saa_readl(SAA7134_IRQ_STATUS);
512
513 /* If dmasound support is active and we get a sound report,
514 * mask out the report and let the saa7134-alsa module deal
515 * with it */
516 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
517 (dev->dmasound.priv_data != NULL) )
518 {
519 if (irq_debug > 1)
520 printk(KERN_DEBUG "%s/irq: preserving DMA sound interrupt\n",
521 dev->name);
522 report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
523 }
524
525 if (0 == report) {
526 if (irq_debug > 1)
527 printk(KERN_DEBUG "%s/irq: no (more) work\n",
528 dev->name);
529 goto out;
530 }
531
532 handled = 1;
533 saa_writel(SAA7134_IRQ_REPORT,report);
534 if (irq_debug)
535 print_irqstatus(dev,loop,report,status);
536
537
538 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
539 (report & SAA7134_IRQ_REPORT_INTL))
540 saa7134_irq_video_signalchange(dev);
541
542
543 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
544 (status & 0x60) == 0)
545 saa7134_irq_video_done(dev,status);
546
547 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
548 (status & 0x40) == 0x40)
549 saa7134_irq_vbi_done(dev,status);
550
551 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
552 card_has_mpeg(dev))
553 saa7134_irq_ts_done(dev,status);
554
555 if (report & SAA7134_IRQ_REPORT_GPIO16) {
556 switch (dev->has_remote) {
557 case SAA7134_REMOTE_GPIO:
558 if (!dev->remote)
559 break;
560 if (dev->remote->mask_keydown & 0x10000) {
561 saa7134_input_irq(dev);
562 }
563 break;
564
565 case SAA7134_REMOTE_I2C:
566 break; /* FIXME: invoke I2C get_key() */
567
568 default: /* GPIO16 not used by IR remote */
569 break;
570 }
571 }
572
573 if (report & SAA7134_IRQ_REPORT_GPIO18) {
574 switch (dev->has_remote) {
575 case SAA7134_REMOTE_GPIO:
576 if (!dev->remote)
577 break;
578 if ((dev->remote->mask_keydown & 0x40000) ||
579 (dev->remote->mask_keyup & 0x40000)) {
580 saa7134_input_irq(dev);
581 }
582 break;
583
584 case SAA7134_REMOTE_I2C:
585 break; /* FIXME: invoke I2C get_key() */
586
587 default: /* GPIO18 not used by IR remote */
588 break;
589 }
590 }
591 }
592
593 if (10 == loop) {
594 print_irqstatus(dev,loop,report,status);
595 if (report & SAA7134_IRQ_REPORT_PE) {
596 /* disable all parity error */
597 printk(KERN_WARNING "%s/irq: looping -- "
598 "clearing PE (parity error!) enable bit\n",dev->name);
599 saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
600 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
601 /* disable gpio16 IRQ */
602 printk(KERN_WARNING "%s/irq: looping -- "
603 "clearing GPIO16 enable bit\n",dev->name);
604 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
605 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
606 /* disable gpio18 IRQs */
607 printk(KERN_WARNING "%s/irq: looping -- "
608 "clearing GPIO18 enable bit\n",dev->name);
609 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
610 } else {
611 /* disable all irqs */
612 printk(KERN_WARNING "%s/irq: looping -- "
613 "clearing all enable bits\n",dev->name);
614 saa_writel(SAA7134_IRQ1,0);
615 saa_writel(SAA7134_IRQ2,0);
616 }
617 }
618
619 out:
620 return IRQ_RETVAL(handled);
621 }
622
623 /* ------------------------------------------------------------------ */
624
625 /* early init (no i2c, no irq) */
626
627 static int saa7134_hw_enable1(struct saa7134_dev *dev)
628 {
629 /* RAM FIFO config */
630 saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
631 saa_writel(SAA7134_THRESHOULD, 0x02020202);
632
633 /* enable audio + video processing */
634 saa_writel(SAA7134_MAIN_CTRL,
635 SAA7134_MAIN_CTRL_VPLLE |
636 SAA7134_MAIN_CTRL_APLLE |
637 SAA7134_MAIN_CTRL_EXOSC |
638 SAA7134_MAIN_CTRL_EVFE1 |
639 SAA7134_MAIN_CTRL_EVFE2 |
640 SAA7134_MAIN_CTRL_ESFE |
641 SAA7134_MAIN_CTRL_EBDAC);
642
643 /*
644 * Initialize OSS _after_ enabling audio clock PLL and audio processing.
645 * OSS initialization writes to registers via the audio DSP; these
646 * writes will fail unless the audio clock has been started. At worst,
647 * audio will not work.
648 */
649
650 /* enable peripheral devices */
651 saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
652
653 /* set vertical line numbering start (vbi needs this) */
654 saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
655
656 return 0;
657 }
658
659 static int saa7134_hwinit1(struct saa7134_dev *dev)
660 {
661 dprintk("hwinit1\n");
662
663 saa_writel(SAA7134_IRQ1, 0);
664 saa_writel(SAA7134_IRQ2, 0);
665
666 /* Clear any stale IRQ reports */
667 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
668
669 mutex_init(&dev->lock);
670 spin_lock_init(&dev->slock);
671
672 saa7134_track_gpio(dev,"pre-init");
673 saa7134_video_init1(dev);
674 saa7134_vbi_init1(dev);
675 if (card_has_mpeg(dev))
676 saa7134_ts_init1(dev);
677 saa7134_input_init1(dev);
678
679 saa7134_hw_enable1(dev);
680
681 return 0;
682 }
683
684 /* late init (with i2c + irq) */
685 static int saa7134_hw_enable2(struct saa7134_dev *dev)
686 {
687
688 unsigned int irq2_mask;
689
690 /* enable IRQ's */
691 irq2_mask =
692 SAA7134_IRQ2_INTE_DEC3 |
693 SAA7134_IRQ2_INTE_DEC2 |
694 SAA7134_IRQ2_INTE_DEC1 |
695 SAA7134_IRQ2_INTE_DEC0 |
696 SAA7134_IRQ2_INTE_PE |
697 SAA7134_IRQ2_INTE_AR;
698
699 if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
700 if (dev->remote->mask_keydown & 0x10000)
701 irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
702 else if (dev->remote->mask_keydown & 0x40000)
703 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
704 else if (dev->remote->mask_keyup & 0x40000)
705 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
706 }
707
708 if (dev->has_remote == SAA7134_REMOTE_I2C) {
709 request_module("ir-kbd-i2c");
710 }
711
712 saa_writel(SAA7134_IRQ1, 0);
713 saa_writel(SAA7134_IRQ2, irq2_mask);
714
715 return 0;
716 }
717
718 static int saa7134_hwinit2(struct saa7134_dev *dev)
719 {
720
721 dprintk("hwinit2\n");
722
723 saa7134_video_init2(dev);
724 saa7134_tvaudio_init2(dev);
725
726 saa7134_hw_enable2(dev);
727
728 return 0;
729 }
730
731
732 /* shutdown */
733 static int saa7134_hwfini(struct saa7134_dev *dev)
734 {
735 dprintk("hwfini\n");
736
737 if (card_has_mpeg(dev))
738 saa7134_ts_fini(dev);
739 saa7134_input_fini(dev);
740 saa7134_vbi_fini(dev);
741 saa7134_tvaudio_fini(dev);
742 return 0;
743 }
744
745 static void __devinit must_configure_manually(void)
746 {
747 unsigned int i,p;
748
749 printk(KERN_WARNING
750 "saa7134: <rant>\n"
751 "saa7134: Congratulations! Your TV card vendor saved a few\n"
752 "saa7134: cents for a eeprom, thus your pci board has no\n"
753 "saa7134: subsystem ID and I can't identify it automatically\n"
754 "saa7134: </rant>\n"
755 "saa7134: I feel better now. Ok, here are the good news:\n"
756 "saa7134: You can use the card=<nr> insmod option to specify\n"
757 "saa7134: which board do you have. The list:\n");
758 for (i = 0; i < saa7134_bcount; i++) {
759 printk(KERN_WARNING "saa7134: card=%d -> %-40.40s",
760 i,saa7134_boards[i].name);
761 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
762 if (saa7134_pci_tbl[p].driver_data != i)
763 continue;
764 printk(" %04x:%04x",
765 saa7134_pci_tbl[p].subvendor,
766 saa7134_pci_tbl[p].subdevice);
767 }
768 printk("\n");
769 }
770 }
771
772 static struct video_device *vdev_init(struct saa7134_dev *dev,
773 struct video_device *template,
774 char *type)
775 {
776 struct video_device *vfd;
777
778 vfd = video_device_alloc();
779 if (NULL == vfd)
780 return NULL;
781 *vfd = *template;
782 vfd->v4l2_dev = &dev->v4l2_dev;
783 vfd->release = video_device_release;
784 vfd->debug = video_debug;
785 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
786 dev->name, type, saa7134_boards[dev->board].name);
787 video_set_drvdata(vfd, dev);
788 return vfd;
789 }
790
791 static void saa7134_unregister_video(struct saa7134_dev *dev)
792 {
793 if (dev->video_dev) {
794 if (video_is_registered(dev->video_dev))
795 video_unregister_device(dev->video_dev);
796 else
797 video_device_release(dev->video_dev);
798 dev->video_dev = NULL;
799 }
800 if (dev->vbi_dev) {
801 if (video_is_registered(dev->vbi_dev))
802 video_unregister_device(dev->vbi_dev);
803 else
804 video_device_release(dev->vbi_dev);
805 dev->vbi_dev = NULL;
806 }
807 if (dev->radio_dev) {
808 if (video_is_registered(dev->radio_dev))
809 video_unregister_device(dev->radio_dev);
810 else
811 video_device_release(dev->radio_dev);
812 dev->radio_dev = NULL;
813 }
814 }
815
816 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
817 struct saa7134_dev *dev)
818 {
819 int err;
820
821 if (NULL != dev->mops)
822 return;
823 if (saa7134_boards[dev->board].mpeg != ops->type)
824 return;
825 err = ops->init(dev);
826 if (0 != err)
827 return;
828 dev->mops = ops;
829 }
830
831 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
832 struct saa7134_dev *dev)
833 {
834 if (NULL == dev->mops)
835 return;
836 if (dev->mops != ops)
837 return;
838 dev->mops->fini(dev);
839 dev->mops = NULL;
840 }
841
842 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
843 const struct pci_device_id *pci_id)
844 {
845 struct saa7134_dev *dev;
846 struct saa7134_mpeg_ops *mops;
847 int err;
848
849 if (saa7134_devcount == SAA7134_MAXBOARDS)
850 return -ENOMEM;
851
852 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
853 if (NULL == dev)
854 return -ENOMEM;
855
856 err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
857 if (err)
858 goto fail0;
859
860 /* pci init */
861 dev->pci = pci_dev;
862 if (pci_enable_device(pci_dev)) {
863 err = -EIO;
864 goto fail1;
865 }
866
867 dev->nr = saa7134_devcount;
868 sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
869
870 /* pci quirks */
871 if (pci_pci_problems) {
872 if (pci_pci_problems & PCIPCI_TRITON)
873 printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
874 if (pci_pci_problems & PCIPCI_NATOMA)
875 printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
876 if (pci_pci_problems & PCIPCI_VIAETBF)
877 printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
878 if (pci_pci_problems & PCIPCI_VSFX)
879 printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
880 #ifdef PCIPCI_ALIMAGIK
881 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
882 printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
883 dev->name);
884 latency = 0x0A;
885 }
886 #endif
887 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
888 printk(KERN_INFO "%s: quirk: this driver and your "
889 "chipset may not work together"
890 " in overlay mode.\n",dev->name);
891 if (!saa7134_no_overlay) {
892 printk(KERN_INFO "%s: quirk: overlay "
893 "mode will be disabled.\n",
894 dev->name);
895 saa7134_no_overlay = 1;
896 } else {
897 printk(KERN_INFO "%s: quirk: overlay "
898 "mode will be forced. Use this"
899 " option at your own risk.\n",
900 dev->name);
901 }
902 }
903 }
904 if (UNSET != latency) {
905 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
906 dev->name,latency);
907 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
908 }
909
910 /* print pci info */
911 pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
912 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
913 printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
914 "latency: %d, mmio: 0x%llx\n", dev->name,
915 pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
916 dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
917 pci_set_master(pci_dev);
918 if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
919 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
920 err = -EIO;
921 goto fail1;
922 }
923
924 /* board config */
925 dev->board = pci_id->driver_data;
926 if (card[dev->nr] >= 0 &&
927 card[dev->nr] < saa7134_bcount)
928 dev->board = card[dev->nr];
929 if (SAA7134_BOARD_NOAUTO == dev->board) {
930 must_configure_manually();
931 dev->board = SAA7134_BOARD_UNKNOWN;
932 }
933 dev->autodetected = card[dev->nr] != dev->board;
934 dev->tuner_type = saa7134_boards[dev->board].tuner_type;
935 dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
936 dev->radio_type = saa7134_boards[dev->board].radio_type;
937 dev->radio_addr = saa7134_boards[dev->board].radio_addr;
938 dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
939 if (UNSET != tuner[dev->nr])
940 dev->tuner_type = tuner[dev->nr];
941 printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
942 dev->name,pci_dev->subsystem_vendor,
943 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
944 dev->board, dev->autodetected ?
945 "autodetected" : "insmod option");
946
947 /* get mmio */
948 if (!request_mem_region(pci_resource_start(pci_dev,0),
949 pci_resource_len(pci_dev,0),
950 dev->name)) {
951 err = -EBUSY;
952 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
953 dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
954 goto fail1;
955 }
956 dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
957 pci_resource_len(pci_dev, 0));
958 dev->bmmio = (__u8 __iomem *)dev->lmmio;
959 if (NULL == dev->lmmio) {
960 err = -EIO;
961 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
962 dev->name);
963 goto fail2;
964 }
965
966 /* initialize hardware #1 */
967 saa7134_board_init1(dev);
968 saa7134_hwinit1(dev);
969
970 /* get irq */
971 err = request_irq(pci_dev->irq, saa7134_irq,
972 IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
973 if (err < 0) {
974 printk(KERN_ERR "%s: can't get IRQ %d\n",
975 dev->name,pci_dev->irq);
976 goto fail3;
977 }
978
979 /* wait a bit, register i2c bus */
980 msleep(100);
981 saa7134_i2c_register(dev);
982 saa7134_board_init2(dev);
983
984 saa7134_hwinit2(dev);
985
986 /* load i2c helpers */
987 if (card_is_empress(dev)) {
988 struct v4l2_subdev *sd =
989 v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
990 "saa6752hs", "saa6752hs",
991 saa7134_boards[dev->board].empress_addr, NULL);
992
993 if (sd)
994 sd->grp_id = GRP_EMPRESS;
995 }
996
997 if (saa7134_boards[dev->board].rds_addr) {
998 struct v4l2_subdev *sd;
999
1000 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1001 &dev->i2c_adap, "saa6588", "saa6588",
1002 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1003 if (sd) {
1004 printk(KERN_INFO "%s: found RDS decoder\n", dev->name);
1005 dev->has_rds = 1;
1006 }
1007 }
1008
1009 request_submodules(dev);
1010
1011 v4l2_prio_init(&dev->prio);
1012
1013 mutex_lock(&saa7134_devlist_lock);
1014 list_for_each_entry(mops, &mops_list, next)
1015 mpeg_ops_attach(mops, dev);
1016 list_add_tail(&dev->devlist, &saa7134_devlist);
1017 mutex_unlock(&saa7134_devlist_lock);
1018
1019 /* check for signal */
1020 saa7134_irq_video_signalchange(dev);
1021
1022 if (TUNER_ABSENT != dev->tuner_type)
1023 saa_call_all(dev, core, s_power, 0);
1024
1025 /* register v4l devices */
1026 if (saa7134_no_overlay > 0)
1027 printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name);
1028
1029 dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1030 err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1031 video_nr[dev->nr]);
1032 if (err < 0) {
1033 printk(KERN_INFO "%s: can't register video device\n",
1034 dev->name);
1035 goto fail4;
1036 }
1037 printk(KERN_INFO "%s: registered device %s [v4l2]\n",
1038 dev->name, video_device_node_name(dev->video_dev));
1039
1040 dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1041
1042 err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1043 vbi_nr[dev->nr]);
1044 if (err < 0)
1045 goto fail4;
1046 printk(KERN_INFO "%s: registered device %s\n",
1047 dev->name, video_device_node_name(dev->vbi_dev));
1048
1049 if (card_has_radio(dev)) {
1050 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1051 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1052 radio_nr[dev->nr]);
1053 if (err < 0)
1054 goto fail4;
1055 printk(KERN_INFO "%s: registered device %s\n",
1056 dev->name, video_device_node_name(dev->radio_dev));
1057 }
1058
1059 /* everything worked */
1060 saa7134_devcount++;
1061
1062 if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1063 saa7134_dmasound_init(dev);
1064
1065 return 0;
1066
1067 fail4:
1068 saa7134_unregister_video(dev);
1069 saa7134_i2c_unregister(dev);
1070 free_irq(pci_dev->irq, dev);
1071 fail3:
1072 saa7134_hwfini(dev);
1073 iounmap(dev->lmmio);
1074 fail2:
1075 release_mem_region(pci_resource_start(pci_dev,0),
1076 pci_resource_len(pci_dev,0));
1077 fail1:
1078 v4l2_device_unregister(&dev->v4l2_dev);
1079 fail0:
1080 kfree(dev);
1081 return err;
1082 }
1083
1084 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1085 {
1086 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1087 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1088 struct saa7134_mpeg_ops *mops;
1089
1090 /* Release DMA sound modules if present */
1091 if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1092 saa7134_dmasound_exit(dev);
1093 }
1094
1095 /* debugging ... */
1096 if (irq_debug) {
1097 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1098 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1099 print_irqstatus(dev,42,report,status);
1100 }
1101
1102 /* disable peripheral devices */
1103 saa_writeb(SAA7134_SPECIAL_MODE,0);
1104
1105 /* shutdown hardware */
1106 saa_writel(SAA7134_IRQ1,0);
1107 saa_writel(SAA7134_IRQ2,0);
1108 saa_writel(SAA7134_MAIN_CTRL,0);
1109
1110 /* shutdown subsystems */
1111 saa7134_hwfini(dev);
1112
1113 /* unregister */
1114 mutex_lock(&saa7134_devlist_lock);
1115 list_del(&dev->devlist);
1116 list_for_each_entry(mops, &mops_list, next)
1117 mpeg_ops_detach(mops, dev);
1118 mutex_unlock(&saa7134_devlist_lock);
1119 saa7134_devcount--;
1120
1121 saa7134_i2c_unregister(dev);
1122 saa7134_unregister_video(dev);
1123
1124
1125 /* the DMA sound modules should be unloaded before reaching
1126 this, but just in case they are still present... */
1127 if (dev->dmasound.priv_data != NULL) {
1128 free_irq(pci_dev->irq, &dev->dmasound);
1129 dev->dmasound.priv_data = NULL;
1130 }
1131
1132
1133 /* release resources */
1134 free_irq(pci_dev->irq, dev);
1135 iounmap(dev->lmmio);
1136 release_mem_region(pci_resource_start(pci_dev,0),
1137 pci_resource_len(pci_dev,0));
1138
1139
1140 v4l2_device_unregister(&dev->v4l2_dev);
1141
1142 /* free memory */
1143 kfree(dev);
1144 }
1145
1146 #ifdef CONFIG_PM
1147
1148 /* resends a current buffer in queue after resume */
1149 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1150 struct saa7134_dmaqueue *q)
1151 {
1152 struct saa7134_buf *buf, *next;
1153
1154 assert_spin_locked(&dev->slock);
1155
1156 buf = q->curr;
1157 next = buf;
1158 dprintk("buffer_requeue\n");
1159
1160 if (!buf)
1161 return 0;
1162
1163 dprintk("buffer_requeue : resending active buffers \n");
1164
1165 if (!list_empty(&q->queue))
1166 next = list_entry(q->queue.next, struct saa7134_buf,
1167 vb.queue);
1168 buf->activate(dev, buf, next);
1169
1170 return 0;
1171 }
1172
1173 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1174 {
1175 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1176 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1177
1178 /* disable overlay - apps should enable it explicitly on resume*/
1179 dev->ovenable = 0;
1180
1181 /* Disable interrupts, DMA, and rest of the chip*/
1182 saa_writel(SAA7134_IRQ1, 0);
1183 saa_writel(SAA7134_IRQ2, 0);
1184 saa_writel(SAA7134_MAIN_CTRL, 0);
1185
1186 dev->insuspend = 1;
1187 synchronize_irq(pci_dev->irq);
1188
1189 /* ACK interrupts once more, just in case,
1190 since the IRQ handler won't ack them anymore*/
1191
1192 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1193
1194 /* Disable timeout timers - if we have active buffers, we will
1195 fill them on resume*/
1196
1197 del_timer(&dev->video_q.timeout);
1198 del_timer(&dev->vbi_q.timeout);
1199 del_timer(&dev->ts_q.timeout);
1200
1201 if (dev->remote)
1202 saa7134_ir_stop(dev);
1203
1204 pci_save_state(pci_dev);
1205 pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1206
1207 return 0;
1208 }
1209
1210 static int saa7134_resume(struct pci_dev *pci_dev)
1211 {
1212 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1213 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1214 unsigned long flags;
1215
1216 pci_set_power_state(pci_dev, PCI_D0);
1217 pci_restore_state(pci_dev);
1218
1219 /* Do things that are done in saa7134_initdev ,
1220 except of initializing memory structures.*/
1221
1222 saa7134_board_init1(dev);
1223
1224 /* saa7134_hwinit1 */
1225 if (saa7134_boards[dev->board].video_out)
1226 saa7134_videoport_init(dev);
1227 if (card_has_mpeg(dev))
1228 saa7134_ts_init_hw(dev);
1229 if (dev->remote)
1230 saa7134_ir_start(dev, dev->remote);
1231 saa7134_hw_enable1(dev);
1232
1233 msleep(100);
1234
1235 saa7134_board_init2(dev);
1236
1237 /*saa7134_hwinit2*/
1238 saa7134_set_tvnorm_hw(dev);
1239 saa7134_tvaudio_setmute(dev);
1240 saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1241 saa7134_tvaudio_init(dev);
1242 saa7134_tvaudio_do_scan(dev);
1243 saa7134_enable_i2s(dev);
1244 saa7134_hw_enable2(dev);
1245
1246 saa7134_irq_video_signalchange(dev);
1247
1248 /*resume unfinished buffer(s)*/
1249 spin_lock_irqsave(&dev->slock, flags);
1250 saa7134_buffer_requeue(dev, &dev->video_q);
1251 saa7134_buffer_requeue(dev, &dev->vbi_q);
1252 saa7134_buffer_requeue(dev, &dev->ts_q);
1253
1254 /* FIXME: Disable DMA audio sound - temporary till proper support
1255 is implemented*/
1256
1257 dev->dmasound.dma_running = 0;
1258
1259 /* start DMA now*/
1260 dev->insuspend = 0;
1261 smp_wmb();
1262 saa7134_set_dmabits(dev);
1263 spin_unlock_irqrestore(&dev->slock, flags);
1264
1265 return 0;
1266 }
1267 #endif
1268
1269 /* ----------------------------------------------------------- */
1270
1271 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1272 {
1273 struct saa7134_dev *dev;
1274
1275 mutex_lock(&saa7134_devlist_lock);
1276 list_for_each_entry(dev, &saa7134_devlist, devlist)
1277 mpeg_ops_attach(ops, dev);
1278 list_add_tail(&ops->next,&mops_list);
1279 mutex_unlock(&saa7134_devlist_lock);
1280 return 0;
1281 }
1282
1283 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1284 {
1285 struct saa7134_dev *dev;
1286
1287 mutex_lock(&saa7134_devlist_lock);
1288 list_del(&ops->next);
1289 list_for_each_entry(dev, &saa7134_devlist, devlist)
1290 mpeg_ops_detach(ops, dev);
1291 mutex_unlock(&saa7134_devlist_lock);
1292 }
1293
1294 EXPORT_SYMBOL(saa7134_ts_register);
1295 EXPORT_SYMBOL(saa7134_ts_unregister);
1296
1297 /* ----------------------------------------------------------- */
1298
1299 static struct pci_driver saa7134_pci_driver = {
1300 .name = "saa7134",
1301 .id_table = saa7134_pci_tbl,
1302 .probe = saa7134_initdev,
1303 .remove = __devexit_p(saa7134_finidev),
1304 #ifdef CONFIG_PM
1305 .suspend = saa7134_suspend,
1306 .resume = saa7134_resume
1307 #endif
1308 };
1309
1310 static int __init saa7134_init(void)
1311 {
1312 INIT_LIST_HEAD(&saa7134_devlist);
1313 printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1314 (SAA7134_VERSION_CODE >> 16) & 0xff,
1315 (SAA7134_VERSION_CODE >> 8) & 0xff,
1316 SAA7134_VERSION_CODE & 0xff);
1317 #ifdef SNAPSHOT
1318 printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1319 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1320 #endif
1321 return pci_register_driver(&saa7134_pci_driver);
1322 }
1323
1324 static void __exit saa7134_fini(void)
1325 {
1326 pci_unregister_driver(&saa7134_pci_driver);
1327 }
1328
1329 module_init(saa7134_init);
1330 module_exit(saa7134_fini);
1331
1332 /* ----------------------------------------------------------- */
1333
1334 EXPORT_SYMBOL(saa7134_set_gpio);
1335 EXPORT_SYMBOL(saa7134_boards);
1336
1337 /* ----------------- for the DMA sound modules --------------- */
1338
1339 EXPORT_SYMBOL(saa7134_dmasound_init);
1340 EXPORT_SYMBOL(saa7134_dmasound_exit);
1341 EXPORT_SYMBOL(saa7134_pgtable_free);
1342 EXPORT_SYMBOL(saa7134_pgtable_build);
1343 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1344 EXPORT_SYMBOL(saa7134_set_dmabits);
1345
1346 /* ----------------------------------------------------------- */
1347 /*
1348 * Local variables:
1349 * c-basic-offset: 8
1350 * End:
1351 */