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