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[media] saa7134: fix CodingStyle issues on the lines touched by pr_foo refactor
[deliverable/linux.git] / drivers / media / pci / saa7134 / saa7134-core.c
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 "saa7134.h"
24 #include "saa7134-reg.h"
25
26 #include <linux/init.h>
27 #include <linux/list.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/slab.h>
31 #include <linux/kmod.h>
32 #include <linux/sound.h>
33 #include <linux/interrupt.h>
34 #include <linux/delay.h>
35 #include <linux/mutex.h>
36 #include <linux/dma-mapping.h>
37 #include <linux/pm.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 MODULE_VERSION(SAA7134_VERSION);
43
44
45 /* ------------------------------------------------------------------ */
46
47 static unsigned int irq_debug;
48 module_param(irq_debug, int, 0644);
49 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
50
51 static unsigned int core_debug;
52 module_param(core_debug, int, 0644);
53 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
54
55 static unsigned int gpio_tracking;
56 module_param(gpio_tracking, int, 0644);
57 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
58
59 static unsigned int alsa = 1;
60 module_param(alsa, int, 0644);
61 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
62
63 static unsigned int latency = UNSET;
64 module_param(latency, int, 0444);
65 MODULE_PARM_DESC(latency,"pci latency timer");
66
67 int saa7134_no_overlay=-1;
68 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
69 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
70 " [some VIA/SIS chipsets are known to have problem with overlay]");
71
72 bool saa7134_userptr;
73 module_param(saa7134_userptr, bool, 0644);
74 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
75
76 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
77 static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
78 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
79 static unsigned int tuner[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
80 static unsigned int card[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
81
82
83 module_param_array(video_nr, int, NULL, 0444);
84 module_param_array(vbi_nr, int, NULL, 0444);
85 module_param_array(radio_nr, int, NULL, 0444);
86 module_param_array(tuner, int, NULL, 0444);
87 module_param_array(card, int, NULL, 0444);
88
89 MODULE_PARM_DESC(video_nr, "video device number");
90 MODULE_PARM_DESC(vbi_nr, "vbi device number");
91 MODULE_PARM_DESC(radio_nr, "radio device number");
92 MODULE_PARM_DESC(tuner, "tuner type");
93 MODULE_PARM_DESC(card, "card type");
94
95 DEFINE_MUTEX(saa7134_devlist_lock);
96 EXPORT_SYMBOL(saa7134_devlist_lock);
97 LIST_HEAD(saa7134_devlist);
98 EXPORT_SYMBOL(saa7134_devlist);
99 static LIST_HEAD(mops_list);
100 static unsigned int saa7134_devcount;
101
102 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
103 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
104
105 #define core_dbg(fmt, arg...) do { \
106 if (core_debug) \
107 printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
108 } while (0)
109
110 #define irq_dbg(level, fmt, arg...) do {\
111 if (irq_debug > level) \
112 printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
113 } while (0)
114
115 void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
116 {
117 unsigned long mode,status;
118
119 if (!gpio_tracking)
120 return;
121 /* rising SAA7134_GPIO_GPRESCAN reads the status */
122 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
123 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
124 mode = saa_readl(SAA7134_GPIO_GPMODE0 >> 2) & 0xfffffff;
125 status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
126 core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
127 dev->name, mode, (~mode) & status, mode & status, msg);
128 }
129
130 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
131 {
132 u32 index, bitval;
133
134 index = 1 << bit_no;
135 switch (value) {
136 case 0: /* static value */
137 case 1:
138 core_dbg("setting GPIO%d to static %d\n", bit_no, value);
139 /* turn sync mode off if necessary */
140 if (index & 0x00c00000)
141 saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
142 if (value)
143 bitval = index;
144 else
145 bitval = 0;
146 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
147 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
148 break;
149 case 3: /* tristate */
150 core_dbg("setting GPIO%d to tristate\n", bit_no);
151 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
152 break;
153 }
154 }
155
156 /* ------------------------------------------------------------------ */
157
158
159 /* ----------------------------------------------------------- */
160 /* delayed request_module */
161
162 #if defined(CONFIG_MODULES) && defined(MODULE)
163
164 static void request_module_async(struct work_struct *work){
165 struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
166 if (card_is_empress(dev))
167 request_module("saa7134-empress");
168 if (card_is_dvb(dev))
169 request_module("saa7134-dvb");
170 if (card_is_go7007(dev))
171 request_module("saa7134-go7007");
172 if (alsa) {
173 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
174 request_module("saa7134-alsa");
175 }
176 }
177
178 static void request_submodules(struct saa7134_dev *dev)
179 {
180 INIT_WORK(&dev->request_module_wk, request_module_async);
181 schedule_work(&dev->request_module_wk);
182 }
183
184 static void flush_request_submodules(struct saa7134_dev *dev)
185 {
186 flush_work(&dev->request_module_wk);
187 }
188
189 #else
190 #define request_submodules(dev)
191 #define flush_request_submodules(dev)
192 #endif /* CONFIG_MODULES */
193
194 /* ------------------------------------------------------------------ */
195
196 /* nr of (saa7134-)pages for the given buffer size */
197 static int saa7134_buffer_pages(int size)
198 {
199 size = PAGE_ALIGN(size);
200 size += PAGE_SIZE; /* for non-page-aligned buffers */
201 size /= 4096;
202 return size;
203 }
204
205 /* calc max # of buffers from size (must not exceed the 4MB virtual
206 * address space per DMA channel) */
207 int saa7134_buffer_count(unsigned int size, unsigned int count)
208 {
209 unsigned int maxcount;
210
211 maxcount = 1024 / saa7134_buffer_pages(size);
212 if (count > maxcount)
213 count = maxcount;
214 return count;
215 }
216
217 int saa7134_buffer_startpage(struct saa7134_buf *buf)
218 {
219 return saa7134_buffer_pages(vb2_plane_size(&buf->vb2, 0)) * buf->vb2.v4l2_buf.index;
220 }
221
222 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
223 {
224 unsigned long base;
225 struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2, 0);
226
227 base = saa7134_buffer_startpage(buf) * 4096;
228 base += dma->sgl[0].offset;
229 return base;
230 }
231
232 /* ------------------------------------------------------------------ */
233
234 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
235 {
236 __le32 *cpu;
237 dma_addr_t dma_addr = 0;
238
239 cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
240 if (NULL == cpu)
241 return -ENOMEM;
242 pt->size = SAA7134_PGTABLE_SIZE;
243 pt->cpu = cpu;
244 pt->dma = dma_addr;
245 return 0;
246 }
247
248 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
249 struct scatterlist *list, unsigned int length,
250 unsigned int startpage)
251 {
252 __le32 *ptr;
253 unsigned int i, p;
254
255 BUG_ON(NULL == pt || NULL == pt->cpu);
256
257 ptr = pt->cpu + startpage;
258 for (i = 0; i < length; i++, list = sg_next(list)) {
259 for (p = 0; p * 4096 < list->length; p++, ptr++)
260 *ptr = cpu_to_le32(sg_dma_address(list) +
261 list->offset + p * 4096);
262 }
263 return 0;
264 }
265
266 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
267 {
268 if (NULL == pt->cpu)
269 return;
270 pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
271 pt->cpu = NULL;
272 }
273
274 /* ------------------------------------------------------------------ */
275
276 int saa7134_buffer_queue(struct saa7134_dev *dev,
277 struct saa7134_dmaqueue *q,
278 struct saa7134_buf *buf)
279 {
280 struct saa7134_buf *next = NULL;
281 unsigned long flags;
282
283 spin_lock_irqsave(&dev->slock, flags);
284 core_dbg("buffer_queue %p\n", buf);
285 if (NULL == q->curr) {
286 if (!q->need_two) {
287 q->curr = buf;
288 buf->activate(dev, buf, NULL);
289 } else if (list_empty(&q->queue)) {
290 list_add_tail(&buf->entry, &q->queue);
291 } else {
292 next = list_entry(q->queue.next, struct saa7134_buf,
293 entry);
294 q->curr = buf;
295 buf->activate(dev, buf, next);
296 }
297 } else {
298 list_add_tail(&buf->entry, &q->queue);
299 }
300 spin_unlock_irqrestore(&dev->slock, flags);
301 return 0;
302 }
303
304 void saa7134_buffer_finish(struct saa7134_dev *dev,
305 struct saa7134_dmaqueue *q,
306 unsigned int state)
307 {
308 core_dbg("buffer_finish %p\n", q->curr);
309
310 /* finish current buffer */
311 v4l2_get_timestamp(&q->curr->vb2.v4l2_buf.timestamp);
312 q->curr->vb2.v4l2_buf.sequence = q->seq_nr++;
313 vb2_buffer_done(&q->curr->vb2, state);
314 q->curr = NULL;
315 }
316
317 void saa7134_buffer_next(struct saa7134_dev *dev,
318 struct saa7134_dmaqueue *q)
319 {
320 struct saa7134_buf *buf,*next = NULL;
321
322 assert_spin_locked(&dev->slock);
323 BUG_ON(NULL != q->curr);
324
325 if (!list_empty(&q->queue)) {
326 /* activate next one from queue */
327 buf = list_entry(q->queue.next, struct saa7134_buf, entry);
328 core_dbg("buffer_next %p [prev=%p/next=%p]\n",
329 buf, q->queue.prev, q->queue.next);
330 list_del(&buf->entry);
331 if (!list_empty(&q->queue))
332 next = list_entry(q->queue.next, struct saa7134_buf, entry);
333 q->curr = buf;
334 buf->activate(dev, buf, next);
335 core_dbg("buffer_next #2 prev=%p/next=%p\n",
336 q->queue.prev, q->queue.next);
337 } else {
338 /* nothing to do -- just stop DMA */
339 core_dbg("buffer_next %p\n", NULL);
340 saa7134_set_dmabits(dev);
341 del_timer(&q->timeout);
342 }
343 }
344
345 void saa7134_buffer_timeout(unsigned long data)
346 {
347 struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue *)data;
348 struct saa7134_dev *dev = q->dev;
349 unsigned long flags;
350
351 spin_lock_irqsave(&dev->slock, flags);
352
353 /* try to reset the hardware (SWRST) */
354 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
355 saa_writeb(SAA7134_REGION_ENABLE, 0x80);
356 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
357
358 /* flag current buffer as failed,
359 try to start over with the next one. */
360 if (q->curr) {
361 core_dbg("timeout on %p\n", q->curr);
362 saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
363 }
364 saa7134_buffer_next(dev, q);
365 spin_unlock_irqrestore(&dev->slock, flags);
366 }
367
368 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
369 {
370 unsigned long flags;
371 struct list_head *pos, *n;
372 struct saa7134_buf *tmp;
373
374 spin_lock_irqsave(&dev->slock, flags);
375 if (!list_empty(&q->queue)) {
376 list_for_each_safe(pos, n, &q->queue) {
377 tmp = list_entry(pos, struct saa7134_buf, entry);
378 vb2_buffer_done(&tmp->vb2, VB2_BUF_STATE_ERROR);
379 list_del(pos);
380 tmp = NULL;
381 }
382 }
383 spin_unlock_irqrestore(&dev->slock, flags);
384 saa7134_buffer_timeout((unsigned long)q); /* also calls del_timer(&q->timeout) */
385 }
386 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
387
388 /* ------------------------------------------------------------------ */
389
390 int saa7134_set_dmabits(struct saa7134_dev *dev)
391 {
392 u32 split, task=0, ctrl=0, irq=0;
393 enum v4l2_field cap = V4L2_FIELD_ANY;
394 enum v4l2_field ov = V4L2_FIELD_ANY;
395
396 assert_spin_locked(&dev->slock);
397
398 if (dev->insuspend)
399 return 0;
400
401 /* video capture -- dma 0 + video task A */
402 if (dev->video_q.curr) {
403 task |= 0x01;
404 ctrl |= SAA7134_MAIN_CTRL_TE0;
405 irq |= SAA7134_IRQ1_INTE_RA0_1 |
406 SAA7134_IRQ1_INTE_RA0_0;
407 cap = dev->field;
408 }
409
410 /* video capture -- dma 1+2 (planar modes) */
411 if (dev->video_q.curr && dev->fmt->planar) {
412 ctrl |= SAA7134_MAIN_CTRL_TE4 |
413 SAA7134_MAIN_CTRL_TE5;
414 }
415
416 /* screen overlay -- dma 0 + video task B */
417 if (dev->ovenable) {
418 task |= 0x10;
419 ctrl |= SAA7134_MAIN_CTRL_TE1;
420 ov = dev->ovfield;
421 }
422
423 /* vbi capture -- dma 0 + vbi task A+B */
424 if (dev->vbi_q.curr) {
425 task |= 0x22;
426 ctrl |= SAA7134_MAIN_CTRL_TE2 |
427 SAA7134_MAIN_CTRL_TE3;
428 irq |= SAA7134_IRQ1_INTE_RA0_7 |
429 SAA7134_IRQ1_INTE_RA0_6 |
430 SAA7134_IRQ1_INTE_RA0_5 |
431 SAA7134_IRQ1_INTE_RA0_4;
432 }
433
434 /* audio capture -- dma 3 */
435 if (dev->dmasound.dma_running) {
436 ctrl |= SAA7134_MAIN_CTRL_TE6;
437 irq |= SAA7134_IRQ1_INTE_RA3_1 |
438 SAA7134_IRQ1_INTE_RA3_0;
439 }
440
441 /* TS capture -- dma 5 */
442 if (dev->ts_q.curr) {
443 ctrl |= SAA7134_MAIN_CTRL_TE5;
444 irq |= SAA7134_IRQ1_INTE_RA2_1 |
445 SAA7134_IRQ1_INTE_RA2_0;
446 }
447
448 /* set task conditions + field handling */
449 if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
450 /* default config -- use full frames */
451 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
452 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
453 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02);
454 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02);
455 split = 0;
456 } else {
457 /* split fields between tasks */
458 if (V4L2_FIELD_TOP == cap) {
459 /* odd A, even B, repeat */
460 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
461 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
462 } else {
463 /* odd B, even A, repeat */
464 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
465 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
466 }
467 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01);
468 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01);
469 split = 1;
470 }
471
472 /* irqs */
473 saa_writeb(SAA7134_REGION_ENABLE, task);
474 saa_writel(SAA7134_IRQ1, irq);
475 saa_andorl(SAA7134_MAIN_CTRL,
476 SAA7134_MAIN_CTRL_TE0 |
477 SAA7134_MAIN_CTRL_TE1 |
478 SAA7134_MAIN_CTRL_TE2 |
479 SAA7134_MAIN_CTRL_TE3 |
480 SAA7134_MAIN_CTRL_TE4 |
481 SAA7134_MAIN_CTRL_TE5 |
482 SAA7134_MAIN_CTRL_TE6,
483 ctrl);
484 core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
485 task, ctrl, irq, split ? "no" : "yes");
486
487 return 0;
488 }
489
490 /* ------------------------------------------------------------------ */
491 /* IRQ handler + helpers */
492
493 static char *irqbits[] = {
494 "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
495 "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
496 "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
497 "GPIO16", "GPIO18", "GPIO22", "GPIO23"
498 };
499 #define IRQBITS ARRAY_SIZE(irqbits)
500
501 static void print_irqstatus(struct saa7134_dev *dev, int loop,
502 unsigned long report, unsigned long status)
503 {
504 unsigned int i;
505
506 irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
507 loop, jiffies, report, status);
508 for (i = 0; i < IRQBITS; i++) {
509 if (!(report & (1 << i)))
510 continue;
511 pr_cont(" %s", irqbits[i]);
512 }
513 if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
514 pr_cont(" | RA0=%s,%s,%s,%ld",
515 (status & 0x40) ? "vbi" : "video",
516 (status & 0x20) ? "b" : "a",
517 (status & 0x10) ? "odd" : "even",
518 (status & 0x0f));
519 }
520 pr_cont("\n");
521 }
522
523 static irqreturn_t saa7134_irq(int irq, void *dev_id)
524 {
525 struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
526 unsigned long report,status;
527 int loop, handled = 0;
528
529 if (dev->insuspend)
530 goto out;
531
532 for (loop = 0; loop < 10; loop++) {
533 report = saa_readl(SAA7134_IRQ_REPORT);
534 status = saa_readl(SAA7134_IRQ_STATUS);
535
536 /* If dmasound support is active and we get a sound report,
537 * mask out the report and let the saa7134-alsa module deal
538 * with it */
539 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
540 (dev->dmasound.priv_data != NULL) )
541 {
542 irq_dbg(2, "preserving DMA sound interrupt\n");
543 report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
544 }
545
546 if (0 == report) {
547 irq_dbg(2, "no (more) work\n");
548 goto out;
549 }
550
551 handled = 1;
552 saa_writel(SAA7134_IRQ_REPORT,report);
553 if (irq_debug)
554 print_irqstatus(dev,loop,report,status);
555
556
557 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
558 (report & SAA7134_IRQ_REPORT_INTL))
559 saa7134_irq_video_signalchange(dev);
560
561
562 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
563 (status & 0x60) == 0)
564 saa7134_irq_video_done(dev,status);
565
566 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
567 (status & 0x40) == 0x40)
568 saa7134_irq_vbi_done(dev,status);
569
570 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
571 card_has_mpeg(dev)) {
572 if (dev->mops->irq_ts_done != NULL)
573 dev->mops->irq_ts_done(dev, status);
574 else
575 saa7134_irq_ts_done(dev, status);
576 }
577
578 if (report & SAA7134_IRQ_REPORT_GPIO16) {
579 switch (dev->has_remote) {
580 case SAA7134_REMOTE_GPIO:
581 if (!dev->remote)
582 break;
583 if (dev->remote->mask_keydown & 0x10000) {
584 saa7134_input_irq(dev);
585 }
586 break;
587
588 case SAA7134_REMOTE_I2C:
589 break; /* FIXME: invoke I2C get_key() */
590
591 default: /* GPIO16 not used by IR remote */
592 break;
593 }
594 }
595
596 if (report & SAA7134_IRQ_REPORT_GPIO18) {
597 switch (dev->has_remote) {
598 case SAA7134_REMOTE_GPIO:
599 if (!dev->remote)
600 break;
601 if ((dev->remote->mask_keydown & 0x40000) ||
602 (dev->remote->mask_keyup & 0x40000)) {
603 saa7134_input_irq(dev);
604 }
605 break;
606
607 case SAA7134_REMOTE_I2C:
608 break; /* FIXME: invoke I2C get_key() */
609
610 default: /* GPIO18 not used by IR remote */
611 break;
612 }
613 }
614 }
615
616 if (10 == loop) {
617 print_irqstatus(dev,loop,report,status);
618 if (report & SAA7134_IRQ_REPORT_PE) {
619 /* disable all parity error */
620 pr_warn("%s/irq: looping -- "
621 "clearing PE (parity error!) enable bit\n",dev->name);
622 saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
623 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
624 /* disable gpio16 IRQ */
625 pr_warn("%s/irq: looping -- "
626 "clearing GPIO16 enable bit\n",dev->name);
627 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
628 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
629 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
630 /* disable gpio18 IRQs */
631 pr_warn("%s/irq: looping -- "
632 "clearing GPIO18 enable bit\n",dev->name);
633 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
634 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
635 } else {
636 /* disable all irqs */
637 pr_warn("%s/irq: looping -- "
638 "clearing all enable bits\n",dev->name);
639 saa_writel(SAA7134_IRQ1,0);
640 saa_writel(SAA7134_IRQ2,0);
641 }
642 }
643
644 out:
645 return IRQ_RETVAL(handled);
646 }
647
648 /* ------------------------------------------------------------------ */
649
650 /* early init (no i2c, no irq) */
651
652 static int saa7134_hw_enable1(struct saa7134_dev *dev)
653 {
654 /* RAM FIFO config */
655 saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
656 saa_writel(SAA7134_THRESHOULD, 0x02020202);
657
658 /* enable audio + video processing */
659 saa_writel(SAA7134_MAIN_CTRL,
660 SAA7134_MAIN_CTRL_VPLLE |
661 SAA7134_MAIN_CTRL_APLLE |
662 SAA7134_MAIN_CTRL_EXOSC |
663 SAA7134_MAIN_CTRL_EVFE1 |
664 SAA7134_MAIN_CTRL_EVFE2 |
665 SAA7134_MAIN_CTRL_ESFE |
666 SAA7134_MAIN_CTRL_EBDAC);
667
668 /*
669 * Initialize OSS _after_ enabling audio clock PLL and audio processing.
670 * OSS initialization writes to registers via the audio DSP; these
671 * writes will fail unless the audio clock has been started. At worst,
672 * audio will not work.
673 */
674
675 /* enable peripheral devices */
676 saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
677
678 /* set vertical line numbering start (vbi needs this) */
679 saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
680
681 return 0;
682 }
683
684 static int saa7134_hwinit1(struct saa7134_dev *dev)
685 {
686 core_dbg("hwinit1\n");
687
688 saa_writel(SAA7134_IRQ1, 0);
689 saa_writel(SAA7134_IRQ2, 0);
690
691 /* Clear any stale IRQ reports */
692 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
693
694 mutex_init(&dev->lock);
695 spin_lock_init(&dev->slock);
696
697 saa7134_track_gpio(dev,"pre-init");
698 saa7134_video_init1(dev);
699 saa7134_vbi_init1(dev);
700 if (card_has_mpeg(dev))
701 saa7134_ts_init1(dev);
702 saa7134_input_init1(dev);
703
704 saa7134_hw_enable1(dev);
705
706 return 0;
707 }
708
709 /* late init (with i2c + irq) */
710 static int saa7134_hw_enable2(struct saa7134_dev *dev)
711 {
712
713 unsigned int irq2_mask;
714
715 /* enable IRQ's */
716 irq2_mask =
717 SAA7134_IRQ2_INTE_DEC3 |
718 SAA7134_IRQ2_INTE_DEC2 |
719 SAA7134_IRQ2_INTE_DEC1 |
720 SAA7134_IRQ2_INTE_DEC0 |
721 SAA7134_IRQ2_INTE_PE |
722 SAA7134_IRQ2_INTE_AR;
723
724 if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
725 if (dev->remote->mask_keydown & 0x10000)
726 irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
727 else { /* Allow enabling both IRQ edge triggers */
728 if (dev->remote->mask_keydown & 0x40000)
729 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
730 if (dev->remote->mask_keyup & 0x40000)
731 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
732 }
733 }
734
735 if (dev->has_remote == SAA7134_REMOTE_I2C) {
736 request_module("ir-kbd-i2c");
737 }
738
739 saa_writel(SAA7134_IRQ1, 0);
740 saa_writel(SAA7134_IRQ2, irq2_mask);
741
742 return 0;
743 }
744
745 static int saa7134_hwinit2(struct saa7134_dev *dev)
746 {
747
748 core_dbg("hwinit2\n");
749
750 saa7134_video_init2(dev);
751 saa7134_tvaudio_init2(dev);
752
753 saa7134_hw_enable2(dev);
754
755 return 0;
756 }
757
758
759 /* shutdown */
760 static int saa7134_hwfini(struct saa7134_dev *dev)
761 {
762 core_dbg("hwfini\n");
763
764 if (card_has_mpeg(dev))
765 saa7134_ts_fini(dev);
766 saa7134_input_fini(dev);
767 saa7134_vbi_fini(dev);
768 saa7134_tvaudio_fini(dev);
769 saa7134_video_fini(dev);
770 return 0;
771 }
772
773 static void must_configure_manually(int has_eeprom)
774 {
775 unsigned int i,p;
776
777 if (!has_eeprom)
778 pr_warn("saa7134: <rant>\n"
779 "saa7134: Congratulations! Your TV card vendor saved a few\n"
780 "saa7134: cents for a eeprom, thus your pci board has no\n"
781 "saa7134: subsystem ID and I can't identify it automatically\n"
782 "saa7134: </rant>\n"
783 "saa7134: I feel better now. Ok, here are the good news:\n"
784 "saa7134: You can use the card=<nr> insmod option to specify\n"
785 "saa7134: which board do you have. The list:\n");
786 else
787 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
788 "saa7134: insmod option to specify which board do you have, but this is\n"
789 "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
790 "saa7134: for support at linux-media@vger.kernel.org.\n"
791 "saa7134: The supported cards are:\n");
792
793 for (i = 0; i < saa7134_bcount; i++) {
794 pr_warn("saa7134: card=%d -> %-40.40s",
795 i,saa7134_boards[i].name);
796 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
797 if (saa7134_pci_tbl[p].driver_data != i)
798 continue;
799 pr_cont(" %04x:%04x",
800 saa7134_pci_tbl[p].subvendor,
801 saa7134_pci_tbl[p].subdevice);
802 }
803 pr_cont("\n");
804 }
805 }
806
807 static struct video_device *vdev_init(struct saa7134_dev *dev,
808 struct video_device *template,
809 char *type)
810 {
811 struct video_device *vfd;
812
813 vfd = video_device_alloc();
814 if (NULL == vfd)
815 return NULL;
816 *vfd = *template;
817 vfd->v4l2_dev = &dev->v4l2_dev;
818 vfd->release = video_device_release;
819 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
820 dev->name, type, saa7134_boards[dev->board].name);
821 video_set_drvdata(vfd, dev);
822 return vfd;
823 }
824
825 static void saa7134_unregister_video(struct saa7134_dev *dev)
826 {
827 if (dev->video_dev) {
828 if (video_is_registered(dev->video_dev))
829 video_unregister_device(dev->video_dev);
830 else
831 video_device_release(dev->video_dev);
832 dev->video_dev = NULL;
833 }
834 if (dev->vbi_dev) {
835 if (video_is_registered(dev->vbi_dev))
836 video_unregister_device(dev->vbi_dev);
837 else
838 video_device_release(dev->vbi_dev);
839 dev->vbi_dev = NULL;
840 }
841 if (dev->radio_dev) {
842 if (video_is_registered(dev->radio_dev))
843 video_unregister_device(dev->radio_dev);
844 else
845 video_device_release(dev->radio_dev);
846 dev->radio_dev = NULL;
847 }
848 }
849
850 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
851 struct saa7134_dev *dev)
852 {
853 int err;
854
855 if (NULL != dev->mops)
856 return;
857 if (saa7134_boards[dev->board].mpeg != ops->type)
858 return;
859 err = ops->init(dev);
860 if (0 != err)
861 return;
862 dev->mops = ops;
863 }
864
865 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
866 struct saa7134_dev *dev)
867 {
868 if (NULL == dev->mops)
869 return;
870 if (dev->mops != ops)
871 return;
872 dev->mops->fini(dev);
873 dev->mops = NULL;
874 }
875
876 static int saa7134_initdev(struct pci_dev *pci_dev,
877 const struct pci_device_id *pci_id)
878 {
879 struct saa7134_dev *dev;
880 struct saa7134_mpeg_ops *mops;
881 int err;
882
883 if (saa7134_devcount == SAA7134_MAXBOARDS)
884 return -ENOMEM;
885
886 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
887 if (NULL == dev)
888 return -ENOMEM;
889
890 err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
891 if (err)
892 goto fail0;
893
894 /* pci init */
895 dev->pci = pci_dev;
896 if (pci_enable_device(pci_dev)) {
897 err = -EIO;
898 goto fail1;
899 }
900
901 dev->nr = saa7134_devcount;
902 sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
903
904 /* pci quirks */
905 if (pci_pci_problems) {
906 if (pci_pci_problems & PCIPCI_TRITON)
907 pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
908 if (pci_pci_problems & PCIPCI_NATOMA)
909 pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
910 if (pci_pci_problems & PCIPCI_VIAETBF)
911 pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
912 if (pci_pci_problems & PCIPCI_VSFX)
913 pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
914 #ifdef PCIPCI_ALIMAGIK
915 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
916 pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
917 dev->name);
918 latency = 0x0A;
919 }
920 #endif
921 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
922 pr_info("%s: quirk: this driver and your "
923 "chipset may not work together"
924 " in overlay mode.\n",dev->name);
925 if (!saa7134_no_overlay) {
926 pr_info("%s: quirk: overlay "
927 "mode will be disabled.\n",
928 dev->name);
929 saa7134_no_overlay = 1;
930 } else {
931 pr_info("%s: quirk: overlay "
932 "mode will be forced. Use this"
933 " option at your own risk.\n",
934 dev->name);
935 }
936 }
937 }
938 if (UNSET != latency) {
939 pr_info("%s: setting pci latency timer to %d\n",
940 dev->name,latency);
941 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
942 }
943
944 /* print pci info */
945 dev->pci_rev = pci_dev->revision;
946 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
947 pr_info("%s: found at %s, rev: %d, irq: %d, "
948 "latency: %d, mmio: 0x%llx\n", dev->name,
949 pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
950 dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
951 pci_set_master(pci_dev);
952 if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
953 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
954 err = -EIO;
955 goto fail1;
956 }
957
958 /* board config */
959 dev->board = pci_id->driver_data;
960 if ((unsigned)card[dev->nr] < saa7134_bcount)
961 dev->board = card[dev->nr];
962 if (SAA7134_BOARD_UNKNOWN == dev->board)
963 must_configure_manually(0);
964 else if (SAA7134_BOARD_NOAUTO == dev->board) {
965 must_configure_manually(1);
966 dev->board = SAA7134_BOARD_UNKNOWN;
967 }
968 dev->autodetected = card[dev->nr] != dev->board;
969 dev->tuner_type = saa7134_boards[dev->board].tuner_type;
970 dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
971 dev->radio_type = saa7134_boards[dev->board].radio_type;
972 dev->radio_addr = saa7134_boards[dev->board].radio_addr;
973 dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
974 if (UNSET != tuner[dev->nr])
975 dev->tuner_type = tuner[dev->nr];
976 pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
977 dev->name,pci_dev->subsystem_vendor,
978 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
979 dev->board, dev->autodetected ?
980 "autodetected" : "insmod option");
981
982 /* get mmio */
983 if (!request_mem_region(pci_resource_start(pci_dev,0),
984 pci_resource_len(pci_dev,0),
985 dev->name)) {
986 err = -EBUSY;
987 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
988 dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
989 goto fail1;
990 }
991 dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
992 pci_resource_len(pci_dev, 0));
993 dev->bmmio = (__u8 __iomem *)dev->lmmio;
994 if (NULL == dev->lmmio) {
995 err = -EIO;
996 pr_err("%s: can't ioremap() MMIO memory\n",
997 dev->name);
998 goto fail2;
999 }
1000
1001 /* initialize hardware #1 */
1002 saa7134_board_init1(dev);
1003 saa7134_hwinit1(dev);
1004
1005 dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev);
1006 if (IS_ERR(dev->alloc_ctx)) {
1007 err = PTR_ERR(dev->alloc_ctx);
1008 goto fail3;
1009 }
1010 /* get irq */
1011 err = request_irq(pci_dev->irq, saa7134_irq,
1012 IRQF_SHARED, dev->name, dev);
1013 if (err < 0) {
1014 pr_err("%s: can't get IRQ %d\n",
1015 dev->name,pci_dev->irq);
1016 goto fail4;
1017 }
1018
1019 /* wait a bit, register i2c bus */
1020 msleep(100);
1021 saa7134_i2c_register(dev);
1022 saa7134_board_init2(dev);
1023
1024 saa7134_hwinit2(dev);
1025
1026 /* load i2c helpers */
1027 if (card_is_empress(dev)) {
1028 dev->empress_sd =
1029 v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1030 "saa6752hs",
1031 saa7134_boards[dev->board].empress_addr, NULL);
1032
1033 if (dev->empress_sd)
1034 dev->empress_sd->grp_id = GRP_EMPRESS;
1035 }
1036
1037 if (saa7134_boards[dev->board].rds_addr) {
1038 struct v4l2_subdev *sd;
1039
1040 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1041 &dev->i2c_adap, "saa6588",
1042 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1043 if (sd) {
1044 pr_info("%s: found RDS decoder\n", dev->name);
1045 dev->has_rds = 1;
1046 }
1047 }
1048
1049 mutex_lock(&saa7134_devlist_lock);
1050 list_for_each_entry(mops, &mops_list, next)
1051 mpeg_ops_attach(mops, dev);
1052 list_add_tail(&dev->devlist, &saa7134_devlist);
1053 mutex_unlock(&saa7134_devlist_lock);
1054
1055 /* check for signal */
1056 saa7134_irq_video_signalchange(dev);
1057
1058 if (TUNER_ABSENT != dev->tuner_type)
1059 saa_call_all(dev, core, s_power, 0);
1060
1061 /* register v4l devices */
1062 if (saa7134_no_overlay > 0)
1063 pr_info("%s: Overlay support disabled.\n", dev->name);
1064
1065 dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1066 dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1067 dev->video_dev->lock = &dev->lock;
1068 dev->video_dev->queue = &dev->video_vbq;
1069 err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1070 video_nr[dev->nr]);
1071 if (err < 0) {
1072 pr_info("%s: can't register video device\n",
1073 dev->name);
1074 goto fail5;
1075 }
1076 pr_info("%s: registered device %s [v4l2]\n",
1077 dev->name, video_device_node_name(dev->video_dev));
1078
1079 dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1080 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1081 dev->vbi_dev->lock = &dev->lock;
1082 dev->vbi_dev->queue = &dev->vbi_vbq;
1083
1084 err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1085 vbi_nr[dev->nr]);
1086 if (err < 0)
1087 goto fail5;
1088 pr_info("%s: registered device %s\n",
1089 dev->name, video_device_node_name(dev->vbi_dev));
1090
1091 if (card_has_radio(dev)) {
1092 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1093 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1094 dev->radio_dev->lock = &dev->lock;
1095 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1096 radio_nr[dev->nr]);
1097 if (err < 0)
1098 goto fail5;
1099 pr_info("%s: registered device %s\n",
1100 dev->name, video_device_node_name(dev->radio_dev));
1101 }
1102
1103 /* everything worked */
1104 saa7134_devcount++;
1105
1106 if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1107 saa7134_dmasound_init(dev);
1108
1109 request_submodules(dev);
1110 return 0;
1111
1112 fail5:
1113 saa7134_unregister_video(dev);
1114 saa7134_i2c_unregister(dev);
1115 free_irq(pci_dev->irq, dev);
1116 fail4:
1117 vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
1118 fail3:
1119 saa7134_hwfini(dev);
1120 iounmap(dev->lmmio);
1121 fail2:
1122 release_mem_region(pci_resource_start(pci_dev,0),
1123 pci_resource_len(pci_dev,0));
1124 fail1:
1125 v4l2_device_unregister(&dev->v4l2_dev);
1126 fail0:
1127 kfree(dev);
1128 return err;
1129 }
1130
1131 static void saa7134_finidev(struct pci_dev *pci_dev)
1132 {
1133 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1134 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1135 struct saa7134_mpeg_ops *mops;
1136
1137 flush_request_submodules(dev);
1138
1139 /* Release DMA sound modules if present */
1140 if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1141 saa7134_dmasound_exit(dev);
1142 }
1143
1144 /* debugging ... */
1145 if (irq_debug) {
1146 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1147 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1148 print_irqstatus(dev,42,report,status);
1149 }
1150
1151 /* disable peripheral devices */
1152 saa_writeb(SAA7134_SPECIAL_MODE,0);
1153
1154 /* shutdown hardware */
1155 saa_writel(SAA7134_IRQ1,0);
1156 saa_writel(SAA7134_IRQ2,0);
1157 saa_writel(SAA7134_MAIN_CTRL,0);
1158
1159 /* shutdown subsystems */
1160 saa7134_hwfini(dev);
1161
1162 /* unregister */
1163 mutex_lock(&saa7134_devlist_lock);
1164 list_del(&dev->devlist);
1165 list_for_each_entry(mops, &mops_list, next)
1166 mpeg_ops_detach(mops, dev);
1167 mutex_unlock(&saa7134_devlist_lock);
1168 saa7134_devcount--;
1169
1170 saa7134_i2c_unregister(dev);
1171 saa7134_unregister_video(dev);
1172
1173
1174 /* the DMA sound modules should be unloaded before reaching
1175 this, but just in case they are still present... */
1176 if (dev->dmasound.priv_data != NULL) {
1177 free_irq(pci_dev->irq, &dev->dmasound);
1178 dev->dmasound.priv_data = NULL;
1179 }
1180
1181
1182 /* release resources */
1183 free_irq(pci_dev->irq, dev);
1184 vb2_dma_sg_cleanup_ctx(dev->alloc_ctx);
1185 iounmap(dev->lmmio);
1186 release_mem_region(pci_resource_start(pci_dev,0),
1187 pci_resource_len(pci_dev,0));
1188
1189
1190 v4l2_device_unregister(&dev->v4l2_dev);
1191
1192 /* free memory */
1193 kfree(dev);
1194 }
1195
1196 #ifdef CONFIG_PM
1197
1198 /* resends a current buffer in queue after resume */
1199 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1200 struct saa7134_dmaqueue *q)
1201 {
1202 struct saa7134_buf *buf, *next;
1203
1204 assert_spin_locked(&dev->slock);
1205
1206 buf = q->curr;
1207 next = buf;
1208 core_dbg("buffer_requeue\n");
1209
1210 if (!buf)
1211 return 0;
1212
1213 core_dbg("buffer_requeue : resending active buffer\n");
1214
1215 if (!list_empty(&q->queue))
1216 next = list_entry(q->queue.next, struct saa7134_buf,
1217 entry);
1218 buf->activate(dev, buf, next);
1219
1220 return 0;
1221 }
1222
1223 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1224 {
1225 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1226 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1227
1228 /* disable overlay - apps should enable it explicitly on resume*/
1229 dev->ovenable = 0;
1230
1231 /* Disable interrupts, DMA, and rest of the chip*/
1232 saa_writel(SAA7134_IRQ1, 0);
1233 saa_writel(SAA7134_IRQ2, 0);
1234 saa_writel(SAA7134_MAIN_CTRL, 0);
1235
1236 dev->insuspend = 1;
1237 synchronize_irq(pci_dev->irq);
1238
1239 /* ACK interrupts once more, just in case,
1240 since the IRQ handler won't ack them anymore*/
1241
1242 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1243
1244 /* Disable timeout timers - if we have active buffers, we will
1245 fill them on resume*/
1246
1247 del_timer(&dev->video_q.timeout);
1248 del_timer(&dev->vbi_q.timeout);
1249 del_timer(&dev->ts_q.timeout);
1250
1251 if (dev->remote)
1252 saa7134_ir_stop(dev);
1253
1254 pci_save_state(pci_dev);
1255 pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1256
1257 return 0;
1258 }
1259
1260 static int saa7134_resume(struct pci_dev *pci_dev)
1261 {
1262 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1263 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1264 unsigned long flags;
1265
1266 pci_set_power_state(pci_dev, PCI_D0);
1267 pci_restore_state(pci_dev);
1268
1269 /* Do things that are done in saa7134_initdev ,
1270 except of initializing memory structures.*/
1271
1272 saa7134_board_init1(dev);
1273
1274 /* saa7134_hwinit1 */
1275 if (saa7134_boards[dev->board].video_out)
1276 saa7134_videoport_init(dev);
1277 if (card_has_mpeg(dev))
1278 saa7134_ts_init_hw(dev);
1279 if (dev->remote)
1280 saa7134_ir_start(dev);
1281 saa7134_hw_enable1(dev);
1282
1283 msleep(100);
1284
1285 saa7134_board_init2(dev);
1286
1287 /*saa7134_hwinit2*/
1288 saa7134_set_tvnorm_hw(dev);
1289 saa7134_tvaudio_setmute(dev);
1290 saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1291 saa7134_tvaudio_init(dev);
1292 saa7134_enable_i2s(dev);
1293 saa7134_hw_enable2(dev);
1294
1295 saa7134_irq_video_signalchange(dev);
1296
1297 /*resume unfinished buffer(s)*/
1298 spin_lock_irqsave(&dev->slock, flags);
1299 saa7134_buffer_requeue(dev, &dev->video_q);
1300 saa7134_buffer_requeue(dev, &dev->vbi_q);
1301 saa7134_buffer_requeue(dev, &dev->ts_q);
1302
1303 /* FIXME: Disable DMA audio sound - temporary till proper support
1304 is implemented*/
1305
1306 dev->dmasound.dma_running = 0;
1307
1308 /* start DMA now*/
1309 dev->insuspend = 0;
1310 smp_wmb();
1311 saa7134_set_dmabits(dev);
1312 spin_unlock_irqrestore(&dev->slock, flags);
1313
1314 return 0;
1315 }
1316 #endif
1317
1318 /* ----------------------------------------------------------- */
1319
1320 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1321 {
1322 struct saa7134_dev *dev;
1323
1324 mutex_lock(&saa7134_devlist_lock);
1325 list_for_each_entry(dev, &saa7134_devlist, devlist)
1326 mpeg_ops_attach(ops, dev);
1327 list_add_tail(&ops->next,&mops_list);
1328 mutex_unlock(&saa7134_devlist_lock);
1329 return 0;
1330 }
1331
1332 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1333 {
1334 struct saa7134_dev *dev;
1335
1336 mutex_lock(&saa7134_devlist_lock);
1337 list_del(&ops->next);
1338 list_for_each_entry(dev, &saa7134_devlist, devlist)
1339 mpeg_ops_detach(ops, dev);
1340 mutex_unlock(&saa7134_devlist_lock);
1341 }
1342
1343 EXPORT_SYMBOL(saa7134_ts_register);
1344 EXPORT_SYMBOL(saa7134_ts_unregister);
1345
1346 /* ----------------------------------------------------------- */
1347
1348 static struct pci_driver saa7134_pci_driver = {
1349 .name = "saa7134",
1350 .id_table = saa7134_pci_tbl,
1351 .probe = saa7134_initdev,
1352 .remove = saa7134_finidev,
1353 #ifdef CONFIG_PM
1354 .suspend = saa7134_suspend,
1355 .resume = saa7134_resume
1356 #endif
1357 };
1358
1359 static int __init saa7134_init(void)
1360 {
1361 INIT_LIST_HEAD(&saa7134_devlist);
1362 pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1363 SAA7134_VERSION);
1364 return pci_register_driver(&saa7134_pci_driver);
1365 }
1366
1367 static void __exit saa7134_fini(void)
1368 {
1369 pci_unregister_driver(&saa7134_pci_driver);
1370 }
1371
1372 module_init(saa7134_init);
1373 module_exit(saa7134_fini);
1374
1375 /* ----------------------------------------------------------- */
1376
1377 EXPORT_SYMBOL(saa7134_set_gpio);
1378 EXPORT_SYMBOL(saa7134_boards);
1379
1380 /* ----------------- for the DMA sound modules --------------- */
1381
1382 EXPORT_SYMBOL(saa7134_dmasound_init);
1383 EXPORT_SYMBOL(saa7134_dmasound_exit);
1384 EXPORT_SYMBOL(saa7134_pgtable_free);
1385 EXPORT_SYMBOL(saa7134_pgtable_build);
1386 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1387 EXPORT_SYMBOL(saa7134_set_dmabits);
Linux kernel - Deliverables
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