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[mirror_ubuntu-artful-kernel.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) [some VIA/SIS chipsets are known to have problem with overlay]");
70
71 bool saa7134_userptr;
72 module_param(saa7134_userptr, bool, 0644);
73 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
74
75 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
76 static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
77 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
78 static unsigned int tuner[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
79 static unsigned int card[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
80
81
82 module_param_array(video_nr, int, NULL, 0444);
83 module_param_array(vbi_nr, int, NULL, 0444);
84 module_param_array(radio_nr, int, NULL, 0444);
85 module_param_array(tuner, int, NULL, 0444);
86 module_param_array(card, int, NULL, 0444);
87
88 MODULE_PARM_DESC(video_nr, "video device number");
89 MODULE_PARM_DESC(vbi_nr, "vbi device number");
90 MODULE_PARM_DESC(radio_nr, "radio device number");
91 MODULE_PARM_DESC(tuner, "tuner type");
92 MODULE_PARM_DESC(card, "card type");
93
94 DEFINE_MUTEX(saa7134_devlist_lock);
95 EXPORT_SYMBOL(saa7134_devlist_lock);
96 LIST_HEAD(saa7134_devlist);
97 EXPORT_SYMBOL(saa7134_devlist);
98 static LIST_HEAD(mops_list);
99 static unsigned int saa7134_devcount;
100
101 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
102 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
103
104 #define core_dbg(fmt, arg...) do { \
105 if (core_debug) \
106 printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
107 } while (0)
108
109 #define irq_dbg(level, fmt, arg...) do {\
110 if (irq_debug > level) \
111 printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
112 } while (0)
113
114 void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
115 {
116 unsigned long mode,status;
117
118 if (!gpio_tracking)
119 return;
120 /* rising SAA7134_GPIO_GPRESCAN reads the status */
121 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
122 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
123 mode = saa_readl(SAA7134_GPIO_GPMODE0 >> 2) & 0xfffffff;
124 status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
125 core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
126 dev->name, mode, (~mode) & status, mode & status, msg);
127 }
128
129 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
130 {
131 u32 index, bitval;
132
133 index = 1 << bit_no;
134 switch (value) {
135 case 0: /* static value */
136 case 1:
137 core_dbg("setting GPIO%d to static %d\n", bit_no, value);
138 /* turn sync mode off if necessary */
139 if (index & 0x00c00000)
140 saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
141 if (value)
142 bitval = index;
143 else
144 bitval = 0;
145 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
146 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
147 break;
148 case 3: /* tristate */
149 core_dbg("setting GPIO%d to tristate\n", bit_no);
150 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
151 break;
152 }
153 }
154
155 /* ------------------------------------------------------------------ */
156
157
158 /* ----------------------------------------------------------- */
159 /* delayed request_module */
160
161 #if defined(CONFIG_MODULES) && defined(MODULE)
162
163 static void request_module_async(struct work_struct *work){
164 struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
165 if (card_is_empress(dev))
166 request_module("saa7134-empress");
167 if (card_is_dvb(dev))
168 request_module("saa7134-dvb");
169 if (card_is_go7007(dev))
170 request_module("saa7134-go7007");
171 if (alsa) {
172 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
173 request_module("saa7134-alsa");
174 }
175 }
176
177 static void request_submodules(struct saa7134_dev *dev)
178 {
179 INIT_WORK(&dev->request_module_wk, request_module_async);
180 schedule_work(&dev->request_module_wk);
181 }
182
183 static void flush_request_submodules(struct saa7134_dev *dev)
184 {
185 flush_work(&dev->request_module_wk);
186 }
187
188 #else
189 #define request_submodules(dev)
190 #define flush_request_submodules(dev)
191 #endif /* CONFIG_MODULES */
192
193 /* ------------------------------------------------------------------ */
194
195 /* nr of (saa7134-)pages for the given buffer size */
196 static int saa7134_buffer_pages(int size)
197 {
198 size = PAGE_ALIGN(size);
199 size += PAGE_SIZE; /* for non-page-aligned buffers */
200 size /= 4096;
201 return size;
202 }
203
204 /* calc max # of buffers from size (must not exceed the 4MB virtual
205 * address space per DMA channel) */
206 int saa7134_buffer_count(unsigned int size, unsigned int count)
207 {
208 unsigned int maxcount;
209
210 maxcount = 1024 / saa7134_buffer_pages(size);
211 if (count > maxcount)
212 count = maxcount;
213 return count;
214 }
215
216 int saa7134_buffer_startpage(struct saa7134_buf *buf)
217 {
218 return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
219 * buf->vb2.vb2_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.vb2_buf, 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 q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
312 q->curr->vb2.sequence = q->seq_nr++;
313 vb2_buffer_done(&q->curr->vb2.vb2_buf, 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,
379 VB2_BUF_STATE_ERROR);
380 list_del(pos);
381 tmp = NULL;
382 }
383 }
384 spin_unlock_irqrestore(&dev->slock, flags);
385 saa7134_buffer_timeout((unsigned long)q); /* also calls del_timer(&q->timeout) */
386 }
387 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
388
389 /* ------------------------------------------------------------------ */
390
391 int saa7134_set_dmabits(struct saa7134_dev *dev)
392 {
393 u32 split, task=0, ctrl=0, irq=0;
394 enum v4l2_field cap = V4L2_FIELD_ANY;
395 enum v4l2_field ov = V4L2_FIELD_ANY;
396
397 assert_spin_locked(&dev->slock);
398
399 if (dev->insuspend)
400 return 0;
401
402 /* video capture -- dma 0 + video task A */
403 if (dev->video_q.curr) {
404 task |= 0x01;
405 ctrl |= SAA7134_MAIN_CTRL_TE0;
406 irq |= SAA7134_IRQ1_INTE_RA0_1 |
407 SAA7134_IRQ1_INTE_RA0_0;
408 cap = dev->field;
409 }
410
411 /* video capture -- dma 1+2 (planar modes) */
412 if (dev->video_q.curr && dev->fmt->planar) {
413 ctrl |= SAA7134_MAIN_CTRL_TE4 |
414 SAA7134_MAIN_CTRL_TE5;
415 }
416
417 /* screen overlay -- dma 0 + video task B */
418 if (dev->ovenable) {
419 task |= 0x10;
420 ctrl |= SAA7134_MAIN_CTRL_TE1;
421 ov = dev->ovfield;
422 }
423
424 /* vbi capture -- dma 0 + vbi task A+B */
425 if (dev->vbi_q.curr) {
426 task |= 0x22;
427 ctrl |= SAA7134_MAIN_CTRL_TE2 |
428 SAA7134_MAIN_CTRL_TE3;
429 irq |= SAA7134_IRQ1_INTE_RA0_7 |
430 SAA7134_IRQ1_INTE_RA0_6 |
431 SAA7134_IRQ1_INTE_RA0_5 |
432 SAA7134_IRQ1_INTE_RA0_4;
433 }
434
435 /* audio capture -- dma 3 */
436 if (dev->dmasound.dma_running) {
437 ctrl |= SAA7134_MAIN_CTRL_TE6;
438 irq |= SAA7134_IRQ1_INTE_RA3_1 |
439 SAA7134_IRQ1_INTE_RA3_0;
440 }
441
442 /* TS capture -- dma 5 */
443 if (dev->ts_q.curr) {
444 ctrl |= SAA7134_MAIN_CTRL_TE5;
445 irq |= SAA7134_IRQ1_INTE_RA2_1 |
446 SAA7134_IRQ1_INTE_RA2_0;
447 }
448
449 /* set task conditions + field handling */
450 if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
451 /* default config -- use full frames */
452 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
453 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
454 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02);
455 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02);
456 split = 0;
457 } else {
458 /* split fields between tasks */
459 if (V4L2_FIELD_TOP == cap) {
460 /* odd A, even B, repeat */
461 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
462 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
463 } else {
464 /* odd B, even A, repeat */
465 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
466 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
467 }
468 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01);
469 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01);
470 split = 1;
471 }
472
473 /* irqs */
474 saa_writeb(SAA7134_REGION_ENABLE, task);
475 saa_writel(SAA7134_IRQ1, irq);
476 saa_andorl(SAA7134_MAIN_CTRL,
477 SAA7134_MAIN_CTRL_TE0 |
478 SAA7134_MAIN_CTRL_TE1 |
479 SAA7134_MAIN_CTRL_TE2 |
480 SAA7134_MAIN_CTRL_TE3 |
481 SAA7134_MAIN_CTRL_TE4 |
482 SAA7134_MAIN_CTRL_TE5 |
483 SAA7134_MAIN_CTRL_TE6,
484 ctrl);
485 core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
486 task, ctrl, irq, split ? "no" : "yes");
487
488 return 0;
489 }
490
491 /* ------------------------------------------------------------------ */
492 /* IRQ handler + helpers */
493
494 static char *irqbits[] = {
495 "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
496 "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
497 "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
498 "GPIO16", "GPIO18", "GPIO22", "GPIO23"
499 };
500 #define IRQBITS ARRAY_SIZE(irqbits)
501
502 static void print_irqstatus(struct saa7134_dev *dev, int loop,
503 unsigned long report, unsigned long status)
504 {
505 unsigned int i;
506
507 irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
508 loop, jiffies, report, status);
509 for (i = 0; i < IRQBITS; i++) {
510 if (!(report & (1 << i)))
511 continue;
512 pr_cont(" %s", irqbits[i]);
513 }
514 if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
515 pr_cont(" | RA0=%s,%s,%s,%ld",
516 (status & 0x40) ? "vbi" : "video",
517 (status & 0x20) ? "b" : "a",
518 (status & 0x10) ? "odd" : "even",
519 (status & 0x0f));
520 }
521 pr_cont("\n");
522 }
523
524 static irqreturn_t saa7134_irq(int irq, void *dev_id)
525 {
526 struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
527 unsigned long report,status;
528 int loop, handled = 0;
529
530 if (dev->insuspend)
531 goto out;
532
533 for (loop = 0; loop < 10; loop++) {
534 report = saa_readl(SAA7134_IRQ_REPORT);
535 status = saa_readl(SAA7134_IRQ_STATUS);
536
537 /* If dmasound support is active and we get a sound report,
538 * mask out the report and let the saa7134-alsa module deal
539 * with it */
540 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
541 (dev->dmasound.priv_data != NULL) )
542 {
543 irq_dbg(2, "preserving DMA sound interrupt\n");
544 report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
545 }
546
547 if (0 == report) {
548 irq_dbg(2, "no (more) work\n");
549 goto out;
550 }
551
552 handled = 1;
553 saa_writel(SAA7134_IRQ_REPORT,report);
554 if (irq_debug)
555 print_irqstatus(dev,loop,report,status);
556
557
558 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
559 (report & SAA7134_IRQ_REPORT_INTL))
560 saa7134_irq_video_signalchange(dev);
561
562
563 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
564 (status & 0x60) == 0)
565 saa7134_irq_video_done(dev,status);
566
567 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
568 (status & 0x40) == 0x40)
569 saa7134_irq_vbi_done(dev,status);
570
571 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
572 card_has_mpeg(dev)) {
573 if (dev->mops->irq_ts_done != NULL)
574 dev->mops->irq_ts_done(dev, status);
575 else
576 saa7134_irq_ts_done(dev, status);
577 }
578
579 if (report & SAA7134_IRQ_REPORT_GPIO16) {
580 switch (dev->has_remote) {
581 case SAA7134_REMOTE_GPIO:
582 if (!dev->remote)
583 break;
584 if (dev->remote->mask_keydown & 0x10000) {
585 saa7134_input_irq(dev);
586 }
587 break;
588
589 case SAA7134_REMOTE_I2C:
590 break; /* FIXME: invoke I2C get_key() */
591
592 default: /* GPIO16 not used by IR remote */
593 break;
594 }
595 }
596
597 if (report & SAA7134_IRQ_REPORT_GPIO18) {
598 switch (dev->has_remote) {
599 case SAA7134_REMOTE_GPIO:
600 if (!dev->remote)
601 break;
602 if ((dev->remote->mask_keydown & 0x40000) ||
603 (dev->remote->mask_keyup & 0x40000)) {
604 saa7134_input_irq(dev);
605 }
606 break;
607
608 case SAA7134_REMOTE_I2C:
609 break; /* FIXME: invoke I2C get_key() */
610
611 default: /* GPIO18 not used by IR remote */
612 break;
613 }
614 }
615 }
616
617 if (10 == loop) {
618 print_irqstatus(dev,loop,report,status);
619 if (report & SAA7134_IRQ_REPORT_PE) {
620 /* disable all parity error */
621 pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
622 dev->name);
623 saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
624 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
625 /* disable gpio16 IRQ */
626 pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
627 dev->name);
628 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
629 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
630 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
631 /* disable gpio18 IRQs */
632 pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
633 dev->name);
634 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
635 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
636 } else {
637 /* disable all irqs */
638 pr_warn("%s/irq: looping -- clearing all enable bits\n",
639 dev->name);
640 saa_writel(SAA7134_IRQ1,0);
641 saa_writel(SAA7134_IRQ2,0);
642 }
643 }
644
645 out:
646 return IRQ_RETVAL(handled);
647 }
648
649 /* ------------------------------------------------------------------ */
650
651 /* early init (no i2c, no irq) */
652
653 static int saa7134_hw_enable1(struct saa7134_dev *dev)
654 {
655 /* RAM FIFO config */
656 saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
657 saa_writel(SAA7134_THRESHOULD, 0x02020202);
658
659 /* enable audio + video processing */
660 saa_writel(SAA7134_MAIN_CTRL,
661 SAA7134_MAIN_CTRL_VPLLE |
662 SAA7134_MAIN_CTRL_APLLE |
663 SAA7134_MAIN_CTRL_EXOSC |
664 SAA7134_MAIN_CTRL_EVFE1 |
665 SAA7134_MAIN_CTRL_EVFE2 |
666 SAA7134_MAIN_CTRL_ESFE |
667 SAA7134_MAIN_CTRL_EBDAC);
668
669 /*
670 * Initialize OSS _after_ enabling audio clock PLL and audio processing.
671 * OSS initialization writes to registers via the audio DSP; these
672 * writes will fail unless the audio clock has been started. At worst,
673 * audio will not work.
674 */
675
676 /* enable peripheral devices */
677 saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
678
679 /* set vertical line numbering start (vbi needs this) */
680 saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
681
682 return 0;
683 }
684
685 static int saa7134_hwinit1(struct saa7134_dev *dev)
686 {
687 core_dbg("hwinit1\n");
688
689 saa_writel(SAA7134_IRQ1, 0);
690 saa_writel(SAA7134_IRQ2, 0);
691
692 /* Clear any stale IRQ reports */
693 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
694
695 mutex_init(&dev->lock);
696 spin_lock_init(&dev->slock);
697
698 saa7134_track_gpio(dev,"pre-init");
699 saa7134_video_init1(dev);
700 saa7134_vbi_init1(dev);
701 if (card_has_mpeg(dev))
702 saa7134_ts_init1(dev);
703 saa7134_input_init1(dev);
704
705 saa7134_hw_enable1(dev);
706
707 return 0;
708 }
709
710 /* late init (with i2c + irq) */
711 static int saa7134_hw_enable2(struct saa7134_dev *dev)
712 {
713
714 unsigned int irq2_mask;
715
716 /* enable IRQ's */
717 irq2_mask =
718 SAA7134_IRQ2_INTE_DEC3 |
719 SAA7134_IRQ2_INTE_DEC2 |
720 SAA7134_IRQ2_INTE_DEC1 |
721 SAA7134_IRQ2_INTE_DEC0 |
722 SAA7134_IRQ2_INTE_PE |
723 SAA7134_IRQ2_INTE_AR;
724
725 if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
726 if (dev->remote->mask_keydown & 0x10000)
727 irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
728 else { /* Allow enabling both IRQ edge triggers */
729 if (dev->remote->mask_keydown & 0x40000)
730 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
731 if (dev->remote->mask_keyup & 0x40000)
732 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
733 }
734 }
735
736 if (dev->has_remote == SAA7134_REMOTE_I2C) {
737 request_module("ir-kbd-i2c");
738 }
739
740 saa_writel(SAA7134_IRQ1, 0);
741 saa_writel(SAA7134_IRQ2, irq2_mask);
742
743 return 0;
744 }
745
746 static int saa7134_hwinit2(struct saa7134_dev *dev)
747 {
748
749 core_dbg("hwinit2\n");
750
751 saa7134_video_init2(dev);
752 saa7134_tvaudio_init2(dev);
753
754 saa7134_hw_enable2(dev);
755
756 return 0;
757 }
758
759
760 /* shutdown */
761 static int saa7134_hwfini(struct saa7134_dev *dev)
762 {
763 core_dbg("hwfini\n");
764
765 if (card_has_mpeg(dev))
766 saa7134_ts_fini(dev);
767 saa7134_input_fini(dev);
768 saa7134_vbi_fini(dev);
769 saa7134_tvaudio_fini(dev);
770 saa7134_video_fini(dev);
771 return 0;
772 }
773
774 static void must_configure_manually(int has_eeprom)
775 {
776 unsigned int i,p;
777
778 if (!has_eeprom)
779 pr_warn("saa7134: <rant>\n"
780 "saa7134: Congratulations! Your TV card vendor saved a few\n"
781 "saa7134: cents for a eeprom, thus your pci board has no\n"
782 "saa7134: subsystem ID and I can't identify it automatically\n"
783 "saa7134: </rant>\n"
784 "saa7134: I feel better now. Ok, here are the good news:\n"
785 "saa7134: You can use the card=<nr> insmod option to specify\n"
786 "saa7134: which board do you have. The list:\n");
787 else
788 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
789 "saa7134: insmod option to specify which board do you have, but this is\n"
790 "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
791 "saa7134: for support at linux-media@vger.kernel.org.\n"
792 "saa7134: The supported cards are:\n");
793
794 for (i = 0; i < saa7134_bcount; i++) {
795 pr_warn("saa7134: card=%d -> %-40.40s",
796 i,saa7134_boards[i].name);
797 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
798 if (saa7134_pci_tbl[p].driver_data != i)
799 continue;
800 pr_cont(" %04x:%04x",
801 saa7134_pci_tbl[p].subvendor,
802 saa7134_pci_tbl[p].subdevice);
803 }
804 pr_cont("\n");
805 }
806 }
807
808 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
809 {
810
811 #ifdef CONFIG_MEDIA_CONTROLLER
812 if (!dev->media_dev)
813 return;
814 media_device_unregister(dev->media_dev);
815 media_device_cleanup(dev->media_dev);
816 kfree(dev->media_dev);
817 dev->media_dev = NULL;
818 #endif
819 }
820
821 static void saa7134_media_release(struct saa7134_dev *dev)
822 {
823 #ifdef CONFIG_MEDIA_CONTROLLER
824 int i;
825
826 for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
827 media_device_unregister_entity(&dev->input_ent[i]);
828 #endif
829 }
830
831 #if defined(CONFIG_MEDIA_CONTROLLER)
832 static void saa7134_create_entities(struct saa7134_dev *dev)
833 {
834 int ret, i;
835 struct media_entity *entity;
836 struct media_entity *decoder = NULL;
837
838 /* Check if it is using an external analog TV demod */
839 media_device_for_each_entity(entity, dev->media_dev) {
840 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
841 decoder = entity;
842 break;
843 }
844 }
845
846 /*
847 * saa713x is not using an external ATV demod.
848 * Register the internal one
849 */
850 if (!decoder) {
851 dev->demod.name = "saa713x";
852 dev->demod_pad[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
853 dev->demod_pad[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
854 dev->demod_pad[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
855 dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
856
857 ret = media_entity_pads_init(&dev->demod, DEMOD_NUM_PADS,
858 dev->demod_pad);
859 if (ret < 0)
860 pr_err("failed to initialize demod pad!\n");
861
862 ret = media_device_register_entity(dev->media_dev, &dev->demod);
863 if (ret < 0)
864 pr_err("failed to register demod entity!\n");
865
866 dev->decoder = &dev->demod;
867 } else {
868 dev->decoder = decoder;
869 }
870
871 /* Initialize Video, VBI and Radio pads */
872 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
873 ret = media_entity_pads_init(&dev->video_dev->entity, 1,
874 &dev->video_pad);
875 if (ret < 0)
876 pr_err("failed to initialize video media entity!\n");
877
878 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
879 ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
880 &dev->vbi_pad);
881 if (ret < 0)
882 pr_err("failed to initialize vbi media entity!\n");
883
884 /* Create entities for each input connector */
885 for (i = 0; i < SAA7134_INPUT_MAX; i++) {
886 struct media_entity *ent = &dev->input_ent[i];
887 struct saa7134_input *in = &card_in(dev, i);
888
889 if (in->type == SAA7134_NO_INPUT)
890 break;
891
892 /* This input uses the S-Video connector */
893 if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
894 continue;
895
896 ent->name = saa7134_input_name[in->type];
897 ent->flags = MEDIA_ENT_FL_CONNECTOR;
898 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
899
900 switch (in->type) {
901 case SAA7134_INPUT_COMPOSITE:
902 case SAA7134_INPUT_COMPOSITE0:
903 case SAA7134_INPUT_COMPOSITE1:
904 case SAA7134_INPUT_COMPOSITE2:
905 case SAA7134_INPUT_COMPOSITE3:
906 case SAA7134_INPUT_COMPOSITE4:
907 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
908 break;
909 case SAA7134_INPUT_SVIDEO:
910 case SAA7134_INPUT_SVIDEO0:
911 case SAA7134_INPUT_SVIDEO1:
912 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
913 break;
914 default:
915 /*
916 * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
917 *
918 * Please notice that neither SAA7134_INPUT_MUTE or
919 * SAA7134_INPUT_RADIO are defined at
920 * saa7134_board.input.
921 */
922 ent->function = MEDIA_ENT_F_CONN_RF;
923 break;
924 }
925
926 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
927 if (ret < 0)
928 pr_err("failed to initialize input pad[%d]!\n", i);
929
930 ret = media_device_register_entity(dev->media_dev, ent);
931 if (ret < 0)
932 pr_err("failed to register input entity %d!\n", i);
933 }
934
935 /* Create input for Radio RF connector */
936 if (card_has_radio(dev)) {
937 struct saa7134_input *in = &saa7134_boards[dev->board].radio;
938 struct media_entity *ent = &dev->input_ent[i];
939
940 ent->name = saa7134_input_name[in->type];
941 ent->flags = MEDIA_ENT_FL_CONNECTOR;
942 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
943 ent->function = MEDIA_ENT_F_CONN_RF;
944
945 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
946 if (ret < 0)
947 pr_err("failed to initialize input pad[%d]!\n", i);
948
949 ret = media_device_register_entity(dev->media_dev, ent);
950 if (ret < 0)
951 pr_err("failed to register input entity %d!\n", i);
952 }
953 }
954 #endif
955
956 static struct video_device *vdev_init(struct saa7134_dev *dev,
957 struct video_device *template,
958 char *type)
959 {
960 struct video_device *vfd;
961
962 vfd = video_device_alloc();
963 if (NULL == vfd)
964 return NULL;
965 *vfd = *template;
966 vfd->v4l2_dev = &dev->v4l2_dev;
967 vfd->release = video_device_release;
968 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
969 dev->name, type, saa7134_boards[dev->board].name);
970 video_set_drvdata(vfd, dev);
971 return vfd;
972 }
973
974 static void saa7134_unregister_video(struct saa7134_dev *dev)
975 {
976 saa7134_media_release(dev);
977
978 if (dev->video_dev) {
979 if (video_is_registered(dev->video_dev))
980 video_unregister_device(dev->video_dev);
981 else
982 video_device_release(dev->video_dev);
983 dev->video_dev = NULL;
984 }
985 if (dev->vbi_dev) {
986 if (video_is_registered(dev->vbi_dev))
987 video_unregister_device(dev->vbi_dev);
988 else
989 video_device_release(dev->vbi_dev);
990 dev->vbi_dev = NULL;
991 }
992 if (dev->radio_dev) {
993 if (video_is_registered(dev->radio_dev))
994 video_unregister_device(dev->radio_dev);
995 else
996 video_device_release(dev->radio_dev);
997 dev->radio_dev = NULL;
998 }
999 }
1000
1001 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
1002 struct saa7134_dev *dev)
1003 {
1004 int err;
1005
1006 if (NULL != dev->mops)
1007 return;
1008 if (saa7134_boards[dev->board].mpeg != ops->type)
1009 return;
1010 err = ops->init(dev);
1011 if (0 != err)
1012 return;
1013 dev->mops = ops;
1014 }
1015
1016 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1017 struct saa7134_dev *dev)
1018 {
1019 if (NULL == dev->mops)
1020 return;
1021 if (dev->mops != ops)
1022 return;
1023 dev->mops->fini(dev);
1024 dev->mops = NULL;
1025 }
1026
1027 static int saa7134_initdev(struct pci_dev *pci_dev,
1028 const struct pci_device_id *pci_id)
1029 {
1030 struct saa7134_dev *dev;
1031 struct saa7134_mpeg_ops *mops;
1032 int err;
1033
1034 if (saa7134_devcount == SAA7134_MAXBOARDS)
1035 return -ENOMEM;
1036
1037 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1038 if (NULL == dev)
1039 return -ENOMEM;
1040
1041 dev->nr = saa7134_devcount;
1042 sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1043
1044 #ifdef CONFIG_MEDIA_CONTROLLER
1045 dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1046 if (!dev->media_dev) {
1047 err = -ENOMEM;
1048 goto fail0;
1049 }
1050 media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1051 dev->v4l2_dev.mdev = dev->media_dev;
1052 #endif
1053
1054 err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1055 if (err)
1056 goto fail0;
1057
1058 /* pci init */
1059 dev->pci = pci_dev;
1060 if (pci_enable_device(pci_dev)) {
1061 err = -EIO;
1062 goto fail1;
1063 }
1064
1065 /* pci quirks */
1066 if (pci_pci_problems) {
1067 if (pci_pci_problems & PCIPCI_TRITON)
1068 pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1069 if (pci_pci_problems & PCIPCI_NATOMA)
1070 pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1071 if (pci_pci_problems & PCIPCI_VIAETBF)
1072 pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1073 if (pci_pci_problems & PCIPCI_VSFX)
1074 pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1075 #ifdef PCIPCI_ALIMAGIK
1076 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1077 pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1078 dev->name);
1079 latency = 0x0A;
1080 }
1081 #endif
1082 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1083 pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1084 dev->name);
1085 if (!saa7134_no_overlay) {
1086 pr_info("%s: quirk: overlay mode will be disabled.\n",
1087 dev->name);
1088 saa7134_no_overlay = 1;
1089 } else {
1090 pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1091 dev->name);
1092 }
1093 }
1094 }
1095 if (UNSET != latency) {
1096 pr_info("%s: setting pci latency timer to %d\n",
1097 dev->name,latency);
1098 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1099 }
1100
1101 /* print pci info */
1102 dev->pci_rev = pci_dev->revision;
1103 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
1104 pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1105 dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1106 dev->pci_lat,
1107 (unsigned long long)pci_resource_start(pci_dev, 0));
1108 pci_set_master(pci_dev);
1109 err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1110 if (err) {
1111 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1112 goto fail1;
1113 }
1114
1115 /* board config */
1116 dev->board = pci_id->driver_data;
1117 if ((unsigned)card[dev->nr] < saa7134_bcount)
1118 dev->board = card[dev->nr];
1119 if (SAA7134_BOARD_UNKNOWN == dev->board)
1120 must_configure_manually(0);
1121 else if (SAA7134_BOARD_NOAUTO == dev->board) {
1122 must_configure_manually(1);
1123 dev->board = SAA7134_BOARD_UNKNOWN;
1124 }
1125 dev->autodetected = card[dev->nr] != dev->board;
1126 dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1127 dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1128 dev->radio_type = saa7134_boards[dev->board].radio_type;
1129 dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1130 dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1131 if (UNSET != tuner[dev->nr])
1132 dev->tuner_type = tuner[dev->nr];
1133 pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1134 dev->name,pci_dev->subsystem_vendor,
1135 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1136 dev->board, dev->autodetected ?
1137 "autodetected" : "insmod option");
1138
1139 /* get mmio */
1140 if (!request_mem_region(pci_resource_start(pci_dev,0),
1141 pci_resource_len(pci_dev,0),
1142 dev->name)) {
1143 err = -EBUSY;
1144 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1145 dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1146 goto fail1;
1147 }
1148 dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1149 pci_resource_len(pci_dev, 0));
1150 dev->bmmio = (__u8 __iomem *)dev->lmmio;
1151 if (NULL == dev->lmmio) {
1152 err = -EIO;
1153 pr_err("%s: can't ioremap() MMIO memory\n",
1154 dev->name);
1155 goto fail2;
1156 }
1157
1158 /* initialize hardware #1 */
1159 saa7134_board_init1(dev);
1160 saa7134_hwinit1(dev);
1161
1162 /* get irq */
1163 err = request_irq(pci_dev->irq, saa7134_irq,
1164 IRQF_SHARED, dev->name, dev);
1165 if (err < 0) {
1166 pr_err("%s: can't get IRQ %d\n",
1167 dev->name,pci_dev->irq);
1168 goto fail3;
1169 }
1170
1171 /* wait a bit, register i2c bus */
1172 msleep(100);
1173 saa7134_i2c_register(dev);
1174 saa7134_board_init2(dev);
1175
1176 saa7134_hwinit2(dev);
1177
1178 /* load i2c helpers */
1179 if (card_is_empress(dev)) {
1180 dev->empress_sd =
1181 v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1182 "saa6752hs",
1183 saa7134_boards[dev->board].empress_addr, NULL);
1184
1185 if (dev->empress_sd)
1186 dev->empress_sd->grp_id = GRP_EMPRESS;
1187 }
1188
1189 if (saa7134_boards[dev->board].rds_addr) {
1190 struct v4l2_subdev *sd;
1191
1192 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1193 &dev->i2c_adap, "saa6588",
1194 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1195 if (sd) {
1196 pr_info("%s: found RDS decoder\n", dev->name);
1197 dev->has_rds = 1;
1198 }
1199 }
1200
1201 mutex_lock(&saa7134_devlist_lock);
1202 list_for_each_entry(mops, &mops_list, next)
1203 mpeg_ops_attach(mops, dev);
1204 list_add_tail(&dev->devlist, &saa7134_devlist);
1205 mutex_unlock(&saa7134_devlist_lock);
1206
1207 /* check for signal */
1208 saa7134_irq_video_signalchange(dev);
1209
1210 if (TUNER_ABSENT != dev->tuner_type)
1211 saa_call_all(dev, core, s_power, 0);
1212
1213 /* register v4l devices */
1214 if (saa7134_no_overlay > 0)
1215 pr_info("%s: Overlay support disabled.\n", dev->name);
1216
1217 dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1218 dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1219 dev->video_dev->lock = &dev->lock;
1220 dev->video_dev->queue = &dev->video_vbq;
1221 err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1222 video_nr[dev->nr]);
1223 if (err < 0) {
1224 pr_info("%s: can't register video device\n",
1225 dev->name);
1226 goto fail4;
1227 }
1228 pr_info("%s: registered device %s [v4l2]\n",
1229 dev->name, video_device_node_name(dev->video_dev));
1230
1231 dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1232 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1233 dev->vbi_dev->lock = &dev->lock;
1234 dev->vbi_dev->queue = &dev->vbi_vbq;
1235
1236 err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1237 vbi_nr[dev->nr]);
1238 if (err < 0)
1239 goto fail4;
1240 pr_info("%s: registered device %s\n",
1241 dev->name, video_device_node_name(dev->vbi_dev));
1242
1243 if (card_has_radio(dev)) {
1244 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1245 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1246 dev->radio_dev->lock = &dev->lock;
1247 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1248 radio_nr[dev->nr]);
1249 if (err < 0)
1250 goto fail4;
1251 pr_info("%s: registered device %s\n",
1252 dev->name, video_device_node_name(dev->radio_dev));
1253 }
1254
1255 #ifdef CONFIG_MEDIA_CONTROLLER
1256 saa7134_create_entities(dev);
1257
1258 err = v4l2_mc_create_media_graph(dev->media_dev);
1259 if (err) {
1260 pr_err("failed to create media graph\n");
1261 goto fail4;
1262 }
1263 #endif
1264 /* everything worked */
1265 saa7134_devcount++;
1266
1267 if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1268 saa7134_dmasound_init(dev);
1269
1270 request_submodules(dev);
1271
1272 /*
1273 * Do it at the end, to reduce dynamic configuration changes during
1274 * the device init. Yet, as request_modules() can be async, the
1275 * topology will likely change after load the saa7134 subdrivers.
1276 */
1277 #ifdef CONFIG_MEDIA_CONTROLLER
1278 err = media_device_register(dev->media_dev);
1279 if (err)
1280 goto fail4;
1281 #endif
1282
1283 return 0;
1284
1285 fail4:
1286 saa7134_unregister_video(dev);
1287 saa7134_i2c_unregister(dev);
1288 free_irq(pci_dev->irq, dev);
1289 fail3:
1290 saa7134_hwfini(dev);
1291 iounmap(dev->lmmio);
1292 fail2:
1293 release_mem_region(pci_resource_start(pci_dev,0),
1294 pci_resource_len(pci_dev,0));
1295 fail1:
1296 v4l2_device_unregister(&dev->v4l2_dev);
1297 fail0:
1298 #ifdef CONFIG_MEDIA_CONTROLLER
1299 kfree(dev->media_dev);
1300 #endif
1301 kfree(dev);
1302 return err;
1303 }
1304
1305 static void saa7134_finidev(struct pci_dev *pci_dev)
1306 {
1307 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1308 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1309 struct saa7134_mpeg_ops *mops;
1310
1311 flush_request_submodules(dev);
1312
1313 /* Release DMA sound modules if present */
1314 if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1315 saa7134_dmasound_exit(dev);
1316 }
1317
1318 /* debugging ... */
1319 if (irq_debug) {
1320 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1321 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1322 print_irqstatus(dev,42,report,status);
1323 }
1324
1325 /* disable peripheral devices */
1326 saa_writeb(SAA7134_SPECIAL_MODE,0);
1327
1328 /* shutdown hardware */
1329 saa_writel(SAA7134_IRQ1,0);
1330 saa_writel(SAA7134_IRQ2,0);
1331 saa_writel(SAA7134_MAIN_CTRL,0);
1332
1333 /* shutdown subsystems */
1334 saa7134_hwfini(dev);
1335
1336 /* unregister */
1337 mutex_lock(&saa7134_devlist_lock);
1338 list_del(&dev->devlist);
1339 list_for_each_entry(mops, &mops_list, next)
1340 mpeg_ops_detach(mops, dev);
1341 mutex_unlock(&saa7134_devlist_lock);
1342 saa7134_devcount--;
1343
1344 saa7134_i2c_unregister(dev);
1345 saa7134_unregister_video(dev);
1346
1347
1348 /* the DMA sound modules should be unloaded before reaching
1349 this, but just in case they are still present... */
1350 if (dev->dmasound.priv_data != NULL) {
1351 free_irq(pci_dev->irq, &dev->dmasound);
1352 dev->dmasound.priv_data = NULL;
1353 }
1354
1355
1356 /* release resources */
1357 free_irq(pci_dev->irq, dev);
1358 iounmap(dev->lmmio);
1359 release_mem_region(pci_resource_start(pci_dev,0),
1360 pci_resource_len(pci_dev,0));
1361
1362 v4l2_device_unregister(&dev->v4l2_dev);
1363
1364 saa7134_unregister_media_device(dev);
1365
1366 /* free memory */
1367 kfree(dev);
1368 }
1369
1370 #ifdef CONFIG_PM
1371
1372 /* resends a current buffer in queue after resume */
1373 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1374 struct saa7134_dmaqueue *q)
1375 {
1376 struct saa7134_buf *buf, *next;
1377
1378 assert_spin_locked(&dev->slock);
1379
1380 buf = q->curr;
1381 next = buf;
1382 core_dbg("buffer_requeue\n");
1383
1384 if (!buf)
1385 return 0;
1386
1387 core_dbg("buffer_requeue : resending active buffer\n");
1388
1389 if (!list_empty(&q->queue))
1390 next = list_entry(q->queue.next, struct saa7134_buf,
1391 entry);
1392 buf->activate(dev, buf, next);
1393
1394 return 0;
1395 }
1396
1397 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1398 {
1399 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1400 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1401
1402 /* disable overlay - apps should enable it explicitly on resume*/
1403 dev->ovenable = 0;
1404
1405 /* Disable interrupts, DMA, and rest of the chip*/
1406 saa_writel(SAA7134_IRQ1, 0);
1407 saa_writel(SAA7134_IRQ2, 0);
1408 saa_writel(SAA7134_MAIN_CTRL, 0);
1409
1410 dev->insuspend = 1;
1411 synchronize_irq(pci_dev->irq);
1412
1413 /* ACK interrupts once more, just in case,
1414 since the IRQ handler won't ack them anymore*/
1415
1416 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1417
1418 /* Disable timeout timers - if we have active buffers, we will
1419 fill them on resume*/
1420
1421 del_timer(&dev->video_q.timeout);
1422 del_timer(&dev->vbi_q.timeout);
1423 del_timer(&dev->ts_q.timeout);
1424
1425 if (dev->remote)
1426 saa7134_ir_stop(dev);
1427
1428 pci_save_state(pci_dev);
1429 pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1430
1431 return 0;
1432 }
1433
1434 static int saa7134_resume(struct pci_dev *pci_dev)
1435 {
1436 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1437 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1438 unsigned long flags;
1439
1440 pci_set_power_state(pci_dev, PCI_D0);
1441 pci_restore_state(pci_dev);
1442
1443 /* Do things that are done in saa7134_initdev ,
1444 except of initializing memory structures.*/
1445
1446 saa7134_board_init1(dev);
1447
1448 /* saa7134_hwinit1 */
1449 if (saa7134_boards[dev->board].video_out)
1450 saa7134_videoport_init(dev);
1451 if (card_has_mpeg(dev))
1452 saa7134_ts_init_hw(dev);
1453 if (dev->remote)
1454 saa7134_ir_start(dev);
1455 saa7134_hw_enable1(dev);
1456
1457 msleep(100);
1458
1459 saa7134_board_init2(dev);
1460
1461 /*saa7134_hwinit2*/
1462 saa7134_set_tvnorm_hw(dev);
1463 saa7134_tvaudio_setmute(dev);
1464 saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1465 saa7134_tvaudio_init(dev);
1466 saa7134_enable_i2s(dev);
1467 saa7134_hw_enable2(dev);
1468
1469 saa7134_irq_video_signalchange(dev);
1470
1471 /*resume unfinished buffer(s)*/
1472 spin_lock_irqsave(&dev->slock, flags);
1473 saa7134_buffer_requeue(dev, &dev->video_q);
1474 saa7134_buffer_requeue(dev, &dev->vbi_q);
1475 saa7134_buffer_requeue(dev, &dev->ts_q);
1476
1477 /* FIXME: Disable DMA audio sound - temporary till proper support
1478 is implemented*/
1479
1480 dev->dmasound.dma_running = 0;
1481
1482 /* start DMA now*/
1483 dev->insuspend = 0;
1484 smp_wmb();
1485 saa7134_set_dmabits(dev);
1486 spin_unlock_irqrestore(&dev->slock, flags);
1487
1488 return 0;
1489 }
1490 #endif
1491
1492 /* ----------------------------------------------------------- */
1493
1494 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1495 {
1496 struct saa7134_dev *dev;
1497
1498 mutex_lock(&saa7134_devlist_lock);
1499 list_for_each_entry(dev, &saa7134_devlist, devlist)
1500 mpeg_ops_attach(ops, dev);
1501 list_add_tail(&ops->next,&mops_list);
1502 mutex_unlock(&saa7134_devlist_lock);
1503 return 0;
1504 }
1505
1506 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1507 {
1508 struct saa7134_dev *dev;
1509
1510 mutex_lock(&saa7134_devlist_lock);
1511 list_del(&ops->next);
1512 list_for_each_entry(dev, &saa7134_devlist, devlist)
1513 mpeg_ops_detach(ops, dev);
1514 mutex_unlock(&saa7134_devlist_lock);
1515 }
1516
1517 EXPORT_SYMBOL(saa7134_ts_register);
1518 EXPORT_SYMBOL(saa7134_ts_unregister);
1519
1520 /* ----------------------------------------------------------- */
1521
1522 static struct pci_driver saa7134_pci_driver = {
1523 .name = "saa7134",
1524 .id_table = saa7134_pci_tbl,
1525 .probe = saa7134_initdev,
1526 .remove = saa7134_finidev,
1527 #ifdef CONFIG_PM
1528 .suspend = saa7134_suspend,
1529 .resume = saa7134_resume
1530 #endif
1531 };
1532
1533 static int __init saa7134_init(void)
1534 {
1535 INIT_LIST_HEAD(&saa7134_devlist);
1536 pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1537 SAA7134_VERSION);
1538 return pci_register_driver(&saa7134_pci_driver);
1539 }
1540
1541 static void __exit saa7134_fini(void)
1542 {
1543 pci_unregister_driver(&saa7134_pci_driver);
1544 }
1545
1546 module_init(saa7134_init);
1547 module_exit(saa7134_fini);
1548
1549 /* ----------------------------------------------------------- */
1550
1551 EXPORT_SYMBOL(saa7134_set_gpio);
1552 EXPORT_SYMBOL(saa7134_boards);
1553
1554 /* ----------------- for the DMA sound modules --------------- */
1555
1556 EXPORT_SYMBOL(saa7134_dmasound_init);
1557 EXPORT_SYMBOL(saa7134_dmasound_exit);
1558 EXPORT_SYMBOL(saa7134_pgtable_free);
1559 EXPORT_SYMBOL(saa7134_pgtable_build);
1560 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1561 EXPORT_SYMBOL(saa7134_set_dmabits);
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