c424c4574d49bba39d16392f4475144077a30aff
[linux-2.6.git] / drivers / media / video / 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 <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(q, &buf->vb, 0, 0);
259         videobuf_dma_unmap(q->dev, 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_P);
605                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
606                 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
607                         /* disable gpio18 IRQs */
608                         printk(KERN_WARNING "%s/irq: looping -- "
609                                "clearing GPIO18 enable bit\n",dev->name);
610                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
611                         saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
612                 } else {
613                         /* disable all irqs */
614                         printk(KERN_WARNING "%s/irq: looping -- "
615                                "clearing all enable bits\n",dev->name);
616                         saa_writel(SAA7134_IRQ1,0);
617                         saa_writel(SAA7134_IRQ2,0);
618                 }
619         }
620
621  out:
622         return IRQ_RETVAL(handled);
623 }
624
625 /* ------------------------------------------------------------------ */
626
627 /* early init (no i2c, no irq) */
628
629 static int saa7134_hw_enable1(struct saa7134_dev *dev)
630 {
631         /* RAM FIFO config */
632         saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
633         saa_writel(SAA7134_THRESHOULD, 0x02020202);
634
635         /* enable audio + video processing */
636         saa_writel(SAA7134_MAIN_CTRL,
637                         SAA7134_MAIN_CTRL_VPLLE |
638                         SAA7134_MAIN_CTRL_APLLE |
639                         SAA7134_MAIN_CTRL_EXOSC |
640                         SAA7134_MAIN_CTRL_EVFE1 |
641                         SAA7134_MAIN_CTRL_EVFE2 |
642                         SAA7134_MAIN_CTRL_ESFE  |
643                         SAA7134_MAIN_CTRL_EBDAC);
644
645         /*
646         * Initialize OSS _after_ enabling audio clock PLL and audio processing.
647         * OSS initialization writes to registers via the audio DSP; these
648         * writes will fail unless the audio clock has been started.  At worst,
649         * audio will not work.
650         */
651
652         /* enable peripheral devices */
653         saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
654
655         /* set vertical line numbering start (vbi needs this) */
656         saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
657
658         return 0;
659 }
660
661 static int saa7134_hwinit1(struct saa7134_dev *dev)
662 {
663         dprintk("hwinit1\n");
664
665         saa_writel(SAA7134_IRQ1, 0);
666         saa_writel(SAA7134_IRQ2, 0);
667
668         /* Clear any stale IRQ reports */
669         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
670
671         mutex_init(&dev->lock);
672         spin_lock_init(&dev->slock);
673
674         saa7134_track_gpio(dev,"pre-init");
675         saa7134_video_init1(dev);
676         saa7134_vbi_init1(dev);
677         if (card_has_mpeg(dev))
678                 saa7134_ts_init1(dev);
679         saa7134_input_init1(dev);
680
681         saa7134_hw_enable1(dev);
682
683         return 0;
684 }
685
686 /* late init (with i2c + irq) */
687 static int saa7134_hw_enable2(struct saa7134_dev *dev)
688 {
689
690         unsigned int irq2_mask;
691
692         /* enable IRQ's */
693         irq2_mask =
694                 SAA7134_IRQ2_INTE_DEC3    |
695                 SAA7134_IRQ2_INTE_DEC2    |
696                 SAA7134_IRQ2_INTE_DEC1    |
697                 SAA7134_IRQ2_INTE_DEC0    |
698                 SAA7134_IRQ2_INTE_PE      |
699                 SAA7134_IRQ2_INTE_AR;
700
701         if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
702                 if (dev->remote->mask_keydown & 0x10000)
703                         irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
704                 else {          /* Allow enabling both IRQ edge triggers */
705                         if (dev->remote->mask_keydown & 0x40000)
706                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
707                         if (dev->remote->mask_keyup & 0x40000)
708                                 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
709                 }
710         }
711
712         if (dev->has_remote == SAA7134_REMOTE_I2C) {
713                 request_module("ir-kbd-i2c");
714         }
715
716         saa_writel(SAA7134_IRQ1, 0);
717         saa_writel(SAA7134_IRQ2, irq2_mask);
718
719         return 0;
720 }
721
722 static int saa7134_hwinit2(struct saa7134_dev *dev)
723 {
724
725         dprintk("hwinit2\n");
726
727         saa7134_video_init2(dev);
728         saa7134_tvaudio_init2(dev);
729
730         saa7134_hw_enable2(dev);
731
732         return 0;
733 }
734
735
736 /* shutdown */
737 static int saa7134_hwfini(struct saa7134_dev *dev)
738 {
739         dprintk("hwfini\n");
740
741         if (card_has_mpeg(dev))
742                 saa7134_ts_fini(dev);
743         saa7134_input_fini(dev);
744         saa7134_vbi_fini(dev);
745         saa7134_tvaudio_fini(dev);
746         return 0;
747 }
748
749 static void __devinit must_configure_manually(void)
750 {
751         unsigned int i,p;
752
753         printk(KERN_WARNING
754                "saa7134: <rant>\n"
755                "saa7134:  Congratulations!  Your TV card vendor saved a few\n"
756                "saa7134:  cents for a eeprom, thus your pci board has no\n"
757                "saa7134:  subsystem ID and I can't identify it automatically\n"
758                "saa7134: </rant>\n"
759                "saa7134: I feel better now.  Ok, here are the good news:\n"
760                "saa7134: You can use the card=<nr> insmod option to specify\n"
761                "saa7134: which board do you have.  The list:\n");
762         for (i = 0; i < saa7134_bcount; i++) {
763                 printk(KERN_WARNING "saa7134:   card=%d -> %-40.40s",
764                        i,saa7134_boards[i].name);
765                 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
766                         if (saa7134_pci_tbl[p].driver_data != i)
767                                 continue;
768                         printk(" %04x:%04x",
769                                saa7134_pci_tbl[p].subvendor,
770                                saa7134_pci_tbl[p].subdevice);
771                 }
772                 printk("\n");
773         }
774 }
775
776 static struct video_device *vdev_init(struct saa7134_dev *dev,
777                                       struct video_device *template,
778                                       char *type)
779 {
780         struct video_device *vfd;
781
782         vfd = video_device_alloc();
783         if (NULL == vfd)
784                 return NULL;
785         *vfd = *template;
786         vfd->v4l2_dev  = &dev->v4l2_dev;
787         vfd->release = video_device_release;
788         vfd->debug   = video_debug;
789         snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
790                  dev->name, type, saa7134_boards[dev->board].name);
791         video_set_drvdata(vfd, dev);
792         return vfd;
793 }
794
795 static void saa7134_unregister_video(struct saa7134_dev *dev)
796 {
797         if (dev->video_dev) {
798                 if (video_is_registered(dev->video_dev))
799                         video_unregister_device(dev->video_dev);
800                 else
801                         video_device_release(dev->video_dev);
802                 dev->video_dev = NULL;
803         }
804         if (dev->vbi_dev) {
805                 if (video_is_registered(dev->vbi_dev))
806                         video_unregister_device(dev->vbi_dev);
807                 else
808                         video_device_release(dev->vbi_dev);
809                 dev->vbi_dev = NULL;
810         }
811         if (dev->radio_dev) {
812                 if (video_is_registered(dev->radio_dev))
813                         video_unregister_device(dev->radio_dev);
814                 else
815                         video_device_release(dev->radio_dev);
816                 dev->radio_dev = NULL;
817         }
818 }
819
820 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
821                             struct saa7134_dev *dev)
822 {
823         int err;
824
825         if (NULL != dev->mops)
826                 return;
827         if (saa7134_boards[dev->board].mpeg != ops->type)
828                 return;
829         err = ops->init(dev);
830         if (0 != err)
831                 return;
832         dev->mops = ops;
833 }
834
835 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
836                             struct saa7134_dev *dev)
837 {
838         if (NULL == dev->mops)
839                 return;
840         if (dev->mops != ops)
841                 return;
842         dev->mops->fini(dev);
843         dev->mops = NULL;
844 }
845
846 static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
847                                      const struct pci_device_id *pci_id)
848 {
849         struct saa7134_dev *dev;
850         struct saa7134_mpeg_ops *mops;
851         int err;
852
853         if (saa7134_devcount == SAA7134_MAXBOARDS)
854                 return -ENOMEM;
855
856         dev = kzalloc(sizeof(*dev),GFP_KERNEL);
857         if (NULL == dev)
858                 return -ENOMEM;
859
860         err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
861         if (err)
862                 goto fail0;
863
864         /* pci init */
865         dev->pci = pci_dev;
866         if (pci_enable_device(pci_dev)) {
867                 err = -EIO;
868                 goto fail1;
869         }
870
871         dev->nr = saa7134_devcount;
872         sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
873
874         /* pci quirks */
875         if (pci_pci_problems) {
876                 if (pci_pci_problems & PCIPCI_TRITON)
877                         printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
878                 if (pci_pci_problems & PCIPCI_NATOMA)
879                         printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
880                 if (pci_pci_problems & PCIPCI_VIAETBF)
881                         printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
882                 if (pci_pci_problems & PCIPCI_VSFX)
883                         printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
884 #ifdef PCIPCI_ALIMAGIK
885                 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
886                         printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
887                                dev->name);
888                         latency = 0x0A;
889                 }
890 #endif
891                 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
892                         printk(KERN_INFO "%s: quirk: this driver and your "
893                                         "chipset may not work together"
894                                         " in overlay mode.\n",dev->name);
895                         if (!saa7134_no_overlay) {
896                                 printk(KERN_INFO "%s: quirk: overlay "
897                                                 "mode will be disabled.\n",
898                                                 dev->name);
899                                 saa7134_no_overlay = 1;
900                         } else {
901                                 printk(KERN_INFO "%s: quirk: overlay "
902                                                 "mode will be forced. Use this"
903                                                 " option at your own risk.\n",
904                                                 dev->name);
905                         }
906                 }
907         }
908         if (UNSET != latency) {
909                 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
910                        dev->name,latency);
911                 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
912         }
913
914         /* print pci info */
915         pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
916         pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
917         printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
918                "latency: %d, mmio: 0x%llx\n", dev->name,
919                pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
920                dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
921         pci_set_master(pci_dev);
922         if (!pci_dma_supported(pci_dev, DMA_BIT_MASK(32))) {
923                 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
924                 err = -EIO;
925                 goto fail1;
926         }
927
928         /* board config */
929         dev->board = pci_id->driver_data;
930         if (card[dev->nr] >= 0 &&
931             card[dev->nr] < saa7134_bcount)
932                 dev->board = card[dev->nr];
933         if (SAA7134_BOARD_NOAUTO == dev->board) {
934                 must_configure_manually();
935                 dev->board = SAA7134_BOARD_UNKNOWN;
936         }
937         dev->autodetected = card[dev->nr] != dev->board;
938         dev->tuner_type = saa7134_boards[dev->board].tuner_type;
939         dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
940         dev->radio_type = saa7134_boards[dev->board].radio_type;
941         dev->radio_addr = saa7134_boards[dev->board].radio_addr;
942         dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
943         if (UNSET != tuner[dev->nr])
944                 dev->tuner_type = tuner[dev->nr];
945         printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
946                 dev->name,pci_dev->subsystem_vendor,
947                 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
948                 dev->board, dev->autodetected ?
949                 "autodetected" : "insmod option");
950
951         /* get mmio */
952         if (!request_mem_region(pci_resource_start(pci_dev,0),
953                                 pci_resource_len(pci_dev,0),
954                                 dev->name)) {
955                 err = -EBUSY;
956                 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%llx\n",
957                        dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
958                 goto fail1;
959         }
960         dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
961                              pci_resource_len(pci_dev, 0));
962         dev->bmmio = (__u8 __iomem *)dev->lmmio;
963         if (NULL == dev->lmmio) {
964                 err = -EIO;
965                 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
966                        dev->name);
967                 goto fail2;
968         }
969
970         /* initialize hardware #1 */
971         saa7134_board_init1(dev);
972         saa7134_hwinit1(dev);
973
974         /* get irq */
975         err = request_irq(pci_dev->irq, saa7134_irq,
976                           IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
977         if (err < 0) {
978                 printk(KERN_ERR "%s: can't get IRQ %d\n",
979                        dev->name,pci_dev->irq);
980                 goto fail3;
981         }
982
983         /* wait a bit, register i2c bus */
984         msleep(100);
985         saa7134_i2c_register(dev);
986         saa7134_board_init2(dev);
987
988         saa7134_hwinit2(dev);
989
990         /* load i2c helpers */
991         if (card_is_empress(dev)) {
992                 struct v4l2_subdev *sd =
993                         v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
994                                 "saa6752hs", "saa6752hs",
995                                 saa7134_boards[dev->board].empress_addr, NULL);
996
997                 if (sd)
998                         sd->grp_id = GRP_EMPRESS;
999         }
1000
1001         if (saa7134_boards[dev->board].rds_addr) {
1002                 struct v4l2_subdev *sd;
1003
1004                 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1005                                 &dev->i2c_adap, "saa6588", "saa6588",
1006                                 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1007                 if (sd) {
1008                         printk(KERN_INFO "%s: found RDS decoder\n", dev->name);
1009                         dev->has_rds = 1;
1010                 }
1011         }
1012
1013         request_submodules(dev);
1014
1015         v4l2_prio_init(&dev->prio);
1016
1017         mutex_lock(&saa7134_devlist_lock);
1018         list_for_each_entry(mops, &mops_list, next)
1019                 mpeg_ops_attach(mops, dev);
1020         list_add_tail(&dev->devlist, &saa7134_devlist);
1021         mutex_unlock(&saa7134_devlist_lock);
1022
1023         /* check for signal */
1024         saa7134_irq_video_signalchange(dev);
1025
1026         if (TUNER_ABSENT != dev->tuner_type)
1027                 saa_call_all(dev, core, s_power, 0);
1028
1029         /* register v4l devices */
1030         if (saa7134_no_overlay > 0)
1031                 printk(KERN_INFO "%s: Overlay support disabled.\n", dev->name);
1032
1033         dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1034         err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1035                                     video_nr[dev->nr]);
1036         if (err < 0) {
1037                 printk(KERN_INFO "%s: can't register video device\n",
1038                        dev->name);
1039                 goto fail4;
1040         }
1041         printk(KERN_INFO "%s: registered device %s [v4l2]\n",
1042                dev->name, video_device_node_name(dev->video_dev));
1043
1044         dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1045
1046         err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1047                                     vbi_nr[dev->nr]);
1048         if (err < 0)
1049                 goto fail4;
1050         printk(KERN_INFO "%s: registered device %s\n",
1051                dev->name, video_device_node_name(dev->vbi_dev));
1052
1053         if (card_has_radio(dev)) {
1054                 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1055                 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1056                                             radio_nr[dev->nr]);
1057                 if (err < 0)
1058                         goto fail4;
1059                 printk(KERN_INFO "%s: registered device %s\n",
1060                        dev->name, video_device_node_name(dev->radio_dev));
1061         }
1062
1063         /* everything worked */
1064         saa7134_devcount++;
1065
1066         if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1067                 saa7134_dmasound_init(dev);
1068
1069         return 0;
1070
1071  fail4:
1072         saa7134_unregister_video(dev);
1073         saa7134_i2c_unregister(dev);
1074         free_irq(pci_dev->irq, dev);
1075  fail3:
1076         saa7134_hwfini(dev);
1077         iounmap(dev->lmmio);
1078  fail2:
1079         release_mem_region(pci_resource_start(pci_dev,0),
1080                            pci_resource_len(pci_dev,0));
1081  fail1:
1082         v4l2_device_unregister(&dev->v4l2_dev);
1083  fail0:
1084         kfree(dev);
1085         return err;
1086 }
1087
1088 static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1089 {
1090         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1091         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1092         struct saa7134_mpeg_ops *mops;
1093
1094         /* Release DMA sound modules if present */
1095         if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1096                 saa7134_dmasound_exit(dev);
1097         }
1098
1099         /* debugging ... */
1100         if (irq_debug) {
1101                 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1102                 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1103                 print_irqstatus(dev,42,report,status);
1104         }
1105
1106         /* disable peripheral devices */
1107         saa_writeb(SAA7134_SPECIAL_MODE,0);
1108
1109         /* shutdown hardware */
1110         saa_writel(SAA7134_IRQ1,0);
1111         saa_writel(SAA7134_IRQ2,0);
1112         saa_writel(SAA7134_MAIN_CTRL,0);
1113
1114         /* shutdown subsystems */
1115         saa7134_hwfini(dev);
1116
1117         /* unregister */
1118         mutex_lock(&saa7134_devlist_lock);
1119         list_del(&dev->devlist);
1120         list_for_each_entry(mops, &mops_list, next)
1121                 mpeg_ops_detach(mops, dev);
1122         mutex_unlock(&saa7134_devlist_lock);
1123         saa7134_devcount--;
1124
1125         saa7134_i2c_unregister(dev);
1126         saa7134_unregister_video(dev);
1127
1128
1129         /* the DMA sound modules should be unloaded before reaching
1130            this, but just in case they are still present... */
1131         if (dev->dmasound.priv_data != NULL) {
1132                 free_irq(pci_dev->irq, &dev->dmasound);
1133                 dev->dmasound.priv_data = NULL;
1134         }
1135
1136
1137         /* release resources */
1138         free_irq(pci_dev->irq, dev);
1139         iounmap(dev->lmmio);
1140         release_mem_region(pci_resource_start(pci_dev,0),
1141                            pci_resource_len(pci_dev,0));
1142
1143
1144         v4l2_device_unregister(&dev->v4l2_dev);
1145
1146         /* free memory */
1147         kfree(dev);
1148 }
1149
1150 #ifdef CONFIG_PM
1151
1152 /* resends a current buffer in queue after resume */
1153 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1154                                   struct saa7134_dmaqueue *q)
1155 {
1156         struct saa7134_buf *buf, *next;
1157
1158         assert_spin_locked(&dev->slock);
1159
1160         buf  = q->curr;
1161         next = buf;
1162         dprintk("buffer_requeue\n");
1163
1164         if (!buf)
1165                 return 0;
1166
1167         dprintk("buffer_requeue : resending active buffers \n");
1168
1169         if (!list_empty(&q->queue))
1170                 next = list_entry(q->queue.next, struct saa7134_buf,
1171                                           vb.queue);
1172         buf->activate(dev, buf, next);
1173
1174         return 0;
1175 }
1176
1177 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1178 {
1179         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1180         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1181
1182         /* disable overlay - apps should enable it explicitly on resume*/
1183         dev->ovenable = 0;
1184
1185         /* Disable interrupts, DMA, and rest of the chip*/
1186         saa_writel(SAA7134_IRQ1, 0);
1187         saa_writel(SAA7134_IRQ2, 0);
1188         saa_writel(SAA7134_MAIN_CTRL, 0);
1189
1190         dev->insuspend = 1;
1191         synchronize_irq(pci_dev->irq);
1192
1193         /* ACK interrupts once more, just in case,
1194                 since the IRQ handler won't ack them anymore*/
1195
1196         saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1197
1198         /* Disable timeout timers - if we have active buffers, we will
1199            fill them on resume*/
1200
1201         del_timer(&dev->video_q.timeout);
1202         del_timer(&dev->vbi_q.timeout);
1203         del_timer(&dev->ts_q.timeout);
1204
1205         if (dev->remote)
1206                 saa7134_ir_stop(dev);
1207
1208         pci_save_state(pci_dev);
1209         pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1210
1211         return 0;
1212 }
1213
1214 static int saa7134_resume(struct pci_dev *pci_dev)
1215 {
1216         struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1217         struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1218         unsigned long flags;
1219
1220         pci_set_power_state(pci_dev, PCI_D0);
1221         pci_restore_state(pci_dev);
1222
1223         /* Do things that are done in saa7134_initdev ,
1224                 except of initializing memory structures.*/
1225
1226         saa7134_board_init1(dev);
1227
1228         /* saa7134_hwinit1 */
1229         if (saa7134_boards[dev->board].video_out)
1230                 saa7134_videoport_init(dev);
1231         if (card_has_mpeg(dev))
1232                 saa7134_ts_init_hw(dev);
1233         if (dev->remote)
1234                 saa7134_ir_start(dev);
1235         saa7134_hw_enable1(dev);
1236
1237         msleep(100);
1238
1239         saa7134_board_init2(dev);
1240
1241         /*saa7134_hwinit2*/
1242         saa7134_set_tvnorm_hw(dev);
1243         saa7134_tvaudio_setmute(dev);
1244         saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1245         saa7134_tvaudio_init(dev);
1246         saa7134_tvaudio_do_scan(dev);
1247         saa7134_enable_i2s(dev);
1248         saa7134_hw_enable2(dev);
1249
1250         saa7134_irq_video_signalchange(dev);
1251
1252         /*resume unfinished buffer(s)*/
1253         spin_lock_irqsave(&dev->slock, flags);
1254         saa7134_buffer_requeue(dev, &dev->video_q);
1255         saa7134_buffer_requeue(dev, &dev->vbi_q);
1256         saa7134_buffer_requeue(dev, &dev->ts_q);
1257
1258         /* FIXME: Disable DMA audio sound - temporary till proper support
1259                   is implemented*/
1260
1261         dev->dmasound.dma_running = 0;
1262
1263         /* start DMA now*/
1264         dev->insuspend = 0;
1265         smp_wmb();
1266         saa7134_set_dmabits(dev);
1267         spin_unlock_irqrestore(&dev->slock, flags);
1268
1269         return 0;
1270 }
1271 #endif
1272
1273 /* ----------------------------------------------------------- */
1274
1275 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1276 {
1277         struct saa7134_dev *dev;
1278
1279         mutex_lock(&saa7134_devlist_lock);
1280         list_for_each_entry(dev, &saa7134_devlist, devlist)
1281                 mpeg_ops_attach(ops, dev);
1282         list_add_tail(&ops->next,&mops_list);
1283         mutex_unlock(&saa7134_devlist_lock);
1284         return 0;
1285 }
1286
1287 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1288 {
1289         struct saa7134_dev *dev;
1290
1291         mutex_lock(&saa7134_devlist_lock);
1292         list_del(&ops->next);
1293         list_for_each_entry(dev, &saa7134_devlist, devlist)
1294                 mpeg_ops_detach(ops, dev);
1295         mutex_unlock(&saa7134_devlist_lock);
1296 }
1297
1298 EXPORT_SYMBOL(saa7134_ts_register);
1299 EXPORT_SYMBOL(saa7134_ts_unregister);
1300
1301 /* ----------------------------------------------------------- */
1302
1303 static struct pci_driver saa7134_pci_driver = {
1304         .name     = "saa7134",
1305         .id_table = saa7134_pci_tbl,
1306         .probe    = saa7134_initdev,
1307         .remove   = __devexit_p(saa7134_finidev),
1308 #ifdef CONFIG_PM
1309         .suspend  = saa7134_suspend,
1310         .resume   = saa7134_resume
1311 #endif
1312 };
1313
1314 static int __init saa7134_init(void)
1315 {
1316         INIT_LIST_HEAD(&saa7134_devlist);
1317         printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1318                (SAA7134_VERSION_CODE >> 16) & 0xff,
1319                (SAA7134_VERSION_CODE >>  8) & 0xff,
1320                SAA7134_VERSION_CODE & 0xff);
1321 #ifdef SNAPSHOT
1322         printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1323                SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1324 #endif
1325         return pci_register_driver(&saa7134_pci_driver);
1326 }
1327
1328 static void __exit saa7134_fini(void)
1329 {
1330         pci_unregister_driver(&saa7134_pci_driver);
1331 }
1332
1333 module_init(saa7134_init);
1334 module_exit(saa7134_fini);
1335
1336 /* ----------------------------------------------------------- */
1337
1338 EXPORT_SYMBOL(saa7134_set_gpio);
1339 EXPORT_SYMBOL(saa7134_boards);
1340
1341 /* ----------------- for the DMA sound modules --------------- */
1342
1343 EXPORT_SYMBOL(saa7134_dmasound_init);
1344 EXPORT_SYMBOL(saa7134_dmasound_exit);
1345 EXPORT_SYMBOL(saa7134_pgtable_free);
1346 EXPORT_SYMBOL(saa7134_pgtable_build);
1347 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1348 EXPORT_SYMBOL(saa7134_set_dmabits);
1349
1350 /* ----------------------------------------------------------- */
1351 /*
1352  * Local variables:
1353  * c-basic-offset: 8
1354  * End:
1355  */