1 /*
2 *
3 * device driver for philips saa7134 based TV cards
4 * driver core
5 *
6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23 #include "saa7134.h"
24 #include "saa7134-reg.h"
25
26 #include <linux/init.h>
27 #include <linux/list.h>
28 #include <linux/module.h>
29 #include <linux/kernel.h>
30 #include <linux/slab.h>
31 #include <linux/kmod.h>
32 #include <linux/sound.h>
33 #include <linux/interrupt.h>
34 #include <linux/delay.h>
35 #include <linux/mutex.h>
36 #include <linux/dma-mapping.h>
37 #include <linux/pm.h>
38
39 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
40 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
41 MODULE_LICENSE("GPL");
42 MODULE_VERSION(SAA7134_VERSION);
43
44
45 /* ------------------------------------------------------------------ */
46
47 static unsigned int irq_debug;
48 module_param(irq_debug, int, 0644);
49 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
50
51 static unsigned int core_debug;
52 module_param(core_debug, int, 0644);
53 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
54
55 static unsigned int gpio_tracking;
56 module_param(gpio_tracking, int, 0644);
57 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
58
59 static unsigned int alsa = 1;
60 module_param(alsa, int, 0644);
61 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
62
63 static unsigned int latency = UNSET;
64 module_param(latency, int, 0444);
65 MODULE_PARM_DESC(latency,"pci latency timer");
66
67 int saa7134_no_overlay=-1;
68 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
69 MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
70 " [some VIA/SIS chipsets are known to have problem with overlay]");
71
72 bool saa7134_userptr;
73 module_param(saa7134_userptr, bool, 0644);
74 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
75
76 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
77 static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
78 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
79 static unsigned int tuner[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
80 static unsigned int card[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
81
82
83 module_param_array(video_nr, int, NULL, 0444);
84 module_param_array(vbi_nr, int, NULL, 0444);
85 module_param_array(radio_nr, int, NULL, 0444);
86 module_param_array(tuner, int, NULL, 0444);
87 module_param_array(card, int, NULL, 0444);
88
89 MODULE_PARM_DESC(video_nr, "video device number");
90 MODULE_PARM_DESC(vbi_nr, "vbi device number");
91 MODULE_PARM_DESC(radio_nr, "radio device number");
92 MODULE_PARM_DESC(tuner, "tuner type");
93 MODULE_PARM_DESC(card, "card type");
94
95 DEFINE_MUTEX(saa7134_devlist_lock);
96 EXPORT_SYMBOL(saa7134_devlist_lock);
97 LIST_HEAD(saa7134_devlist);
98 EXPORT_SYMBOL(saa7134_devlist);
99 static LIST_HEAD(mops_list);
100 static unsigned int saa7134_devcount;
101
102 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
103 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
104
105 #define core_dbg(fmt, arg...) do { \
106 if (core_debug) \
107 printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
108 } while (0)
109
110 #define irq_dbg(level, fmt, arg...) do {\
111 if (irq_debug > level) \
112 printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
113 } while (0)
114
saa7134_track_gpio(struct saa7134_dev * dev,const char * msg)115 void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
116 {
117 unsigned long mode,status;
118
119 if (!gpio_tracking)
120 return;
121 /* rising SAA7134_GPIO_GPRESCAN reads the status */
122 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
123 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
124 mode = saa_readl(SAA7134_GPIO_GPMODE0 >> 2) & 0xfffffff;
125 status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
126 core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
127 dev->name, mode, (~mode) & status, mode & status, msg);
128 }
129
saa7134_set_gpio(struct saa7134_dev * dev,int bit_no,int value)130 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
131 {
132 u32 index, bitval;
133
134 index = 1 << bit_no;
135 switch (value) {
136 case 0: /* static value */
137 case 1:
138 core_dbg("setting GPIO%d to static %d\n", bit_no, value);
139 /* turn sync mode off if necessary */
140 if (index & 0x00c00000)
141 saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
142 if (value)
143 bitval = index;
144 else
145 bitval = 0;
146 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
147 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
148 break;
149 case 3: /* tristate */
150 core_dbg("setting GPIO%d to tristate\n", bit_no);
151 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
152 break;
153 }
154 }
155
156 /* ------------------------------------------------------------------ */
157
158
159 /* ----------------------------------------------------------- */
160 /* delayed request_module */
161
162 #if defined(CONFIG_MODULES) && defined(MODULE)
163
request_module_async(struct work_struct * work)164 static void request_module_async(struct work_struct *work){
165 struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
166 if (card_is_empress(dev))
167 request_module("saa7134-empress");
168 if (card_is_dvb(dev))
169 request_module("saa7134-dvb");
170 if (card_is_go7007(dev))
171 request_module("saa7134-go7007");
172 if (alsa) {
173 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
174 request_module("saa7134-alsa");
175 }
176 }
177
request_submodules(struct saa7134_dev * dev)178 static void request_submodules(struct saa7134_dev *dev)
179 {
180 INIT_WORK(&dev->request_module_wk, request_module_async);
181 schedule_work(&dev->request_module_wk);
182 }
183
flush_request_submodules(struct saa7134_dev * dev)184 static void flush_request_submodules(struct saa7134_dev *dev)
185 {
186 flush_work(&dev->request_module_wk);
187 }
188
189 #else
190 #define request_submodules(dev)
191 #define flush_request_submodules(dev)
192 #endif /* CONFIG_MODULES */
193
194 /* ------------------------------------------------------------------ */
195
196 /* nr of (saa7134-)pages for the given buffer size */
saa7134_buffer_pages(int size)197 static int saa7134_buffer_pages(int size)
198 {
199 size = PAGE_ALIGN(size);
200 size += PAGE_SIZE; /* for non-page-aligned buffers */
201 size /= 4096;
202 return size;
203 }
204
205 /* calc max # of buffers from size (must not exceed the 4MB virtual
206 * address space per DMA channel) */
saa7134_buffer_count(unsigned int size,unsigned int count)207 int saa7134_buffer_count(unsigned int size, unsigned int count)
208 {
209 unsigned int maxcount;
210
211 maxcount = 1024 / saa7134_buffer_pages(size);
212 if (count > maxcount)
213 count = maxcount;
214 return count;
215 }
216
saa7134_buffer_startpage(struct saa7134_buf * buf)217 int saa7134_buffer_startpage(struct saa7134_buf *buf)
218 {
219 return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
220 * buf->vb2.vb2_buf.index;
221 }
222
saa7134_buffer_base(struct saa7134_buf * buf)223 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
224 {
225 unsigned long base;
226 struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);
227
228 base = saa7134_buffer_startpage(buf) * 4096;
229 base += dma->sgl[0].offset;
230 return base;
231 }
232
233 /* ------------------------------------------------------------------ */
234
saa7134_pgtable_alloc(struct pci_dev * pci,struct saa7134_pgtable * pt)235 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
236 {
237 __le32 *cpu;
238 dma_addr_t dma_addr = 0;
239
240 cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
241 if (NULL == cpu)
242 return -ENOMEM;
243 pt->size = SAA7134_PGTABLE_SIZE;
244 pt->cpu = cpu;
245 pt->dma = dma_addr;
246 return 0;
247 }
248
saa7134_pgtable_build(struct pci_dev * pci,struct saa7134_pgtable * pt,struct scatterlist * list,unsigned int length,unsigned int startpage)249 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
250 struct scatterlist *list, unsigned int length,
251 unsigned int startpage)
252 {
253 __le32 *ptr;
254 unsigned int i, p;
255
256 BUG_ON(NULL == pt || NULL == pt->cpu);
257
258 ptr = pt->cpu + startpage;
259 for (i = 0; i < length; i++, list = sg_next(list)) {
260 for (p = 0; p * 4096 < list->length; p++, ptr++)
261 *ptr = cpu_to_le32(sg_dma_address(list) +
262 list->offset + p * 4096);
263 }
264 return 0;
265 }
266
saa7134_pgtable_free(struct pci_dev * pci,struct saa7134_pgtable * pt)267 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
268 {
269 if (NULL == pt->cpu)
270 return;
271 pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
272 pt->cpu = NULL;
273 }
274
275 /* ------------------------------------------------------------------ */
276
saa7134_buffer_queue(struct saa7134_dev * dev,struct saa7134_dmaqueue * q,struct saa7134_buf * buf)277 int saa7134_buffer_queue(struct saa7134_dev *dev,
278 struct saa7134_dmaqueue *q,
279 struct saa7134_buf *buf)
280 {
281 struct saa7134_buf *next = NULL;
282 unsigned long flags;
283
284 spin_lock_irqsave(&dev->slock, flags);
285 core_dbg("buffer_queue %p\n", buf);
286 if (NULL == q->curr) {
287 if (!q->need_two) {
288 q->curr = buf;
289 buf->activate(dev, buf, NULL);
290 } else if (list_empty(&q->queue)) {
291 list_add_tail(&buf->entry, &q->queue);
292 } else {
293 next = list_entry(q->queue.next, struct saa7134_buf,
294 entry);
295 q->curr = buf;
296 buf->activate(dev, buf, next);
297 }
298 } else {
299 list_add_tail(&buf->entry, &q->queue);
300 }
301 spin_unlock_irqrestore(&dev->slock, flags);
302 return 0;
303 }
304
saa7134_buffer_finish(struct saa7134_dev * dev,struct saa7134_dmaqueue * q,unsigned int state)305 void saa7134_buffer_finish(struct saa7134_dev *dev,
306 struct saa7134_dmaqueue *q,
307 unsigned int state)
308 {
309 core_dbg("buffer_finish %p\n", q->curr);
310
311 /* finish current buffer */
312 q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
313 q->curr->vb2.sequence = q->seq_nr++;
314 vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
315 q->curr = NULL;
316 }
317
saa7134_buffer_next(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)318 void saa7134_buffer_next(struct saa7134_dev *dev,
319 struct saa7134_dmaqueue *q)
320 {
321 struct saa7134_buf *buf,*next = NULL;
322
323 assert_spin_locked(&dev->slock);
324 BUG_ON(NULL != q->curr);
325
326 if (!list_empty(&q->queue)) {
327 /* activate next one from queue */
328 buf = list_entry(q->queue.next, struct saa7134_buf, entry);
329 core_dbg("buffer_next %p [prev=%p/next=%p]\n",
330 buf, q->queue.prev, q->queue.next);
331 list_del(&buf->entry);
332 if (!list_empty(&q->queue))
333 next = list_entry(q->queue.next, struct saa7134_buf, entry);
334 q->curr = buf;
335 buf->activate(dev, buf, next);
336 core_dbg("buffer_next #2 prev=%p/next=%p\n",
337 q->queue.prev, q->queue.next);
338 } else {
339 /* nothing to do -- just stop DMA */
340 core_dbg("buffer_next %p\n", NULL);
341 saa7134_set_dmabits(dev);
342 del_timer(&q->timeout);
343 }
344 }
345
saa7134_buffer_timeout(unsigned long data)346 void saa7134_buffer_timeout(unsigned long data)
347 {
348 struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue *)data;
349 struct saa7134_dev *dev = q->dev;
350 unsigned long flags;
351
352 spin_lock_irqsave(&dev->slock, flags);
353
354 /* try to reset the hardware (SWRST) */
355 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
356 saa_writeb(SAA7134_REGION_ENABLE, 0x80);
357 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
358
359 /* flag current buffer as failed,
360 try to start over with the next one. */
361 if (q->curr) {
362 core_dbg("timeout on %p\n", q->curr);
363 saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
364 }
365 saa7134_buffer_next(dev, q);
366 spin_unlock_irqrestore(&dev->slock, flags);
367 }
368
saa7134_stop_streaming(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)369 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
370 {
371 unsigned long flags;
372 struct list_head *pos, *n;
373 struct saa7134_buf *tmp;
374
375 spin_lock_irqsave(&dev->slock, flags);
376 if (!list_empty(&q->queue)) {
377 list_for_each_safe(pos, n, &q->queue) {
378 tmp = list_entry(pos, struct saa7134_buf, entry);
379 vb2_buffer_done(&tmp->vb2.vb2_buf,
380 VB2_BUF_STATE_ERROR);
381 list_del(pos);
382 tmp = NULL;
383 }
384 }
385 spin_unlock_irqrestore(&dev->slock, flags);
386 saa7134_buffer_timeout((unsigned long)q); /* also calls del_timer(&q->timeout) */
387 }
388 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
389
390 /* ------------------------------------------------------------------ */
391
saa7134_set_dmabits(struct saa7134_dev * dev)392 int saa7134_set_dmabits(struct saa7134_dev *dev)
393 {
394 u32 split, task=0, ctrl=0, irq=0;
395 enum v4l2_field cap = V4L2_FIELD_ANY;
396 enum v4l2_field ov = V4L2_FIELD_ANY;
397
398 assert_spin_locked(&dev->slock);
399
400 if (dev->insuspend)
401 return 0;
402
403 /* video capture -- dma 0 + video task A */
404 if (dev->video_q.curr) {
405 task |= 0x01;
406 ctrl |= SAA7134_MAIN_CTRL_TE0;
407 irq |= SAA7134_IRQ1_INTE_RA0_1 |
408 SAA7134_IRQ1_INTE_RA0_0;
409 cap = dev->field;
410 }
411
412 /* video capture -- dma 1+2 (planar modes) */
413 if (dev->video_q.curr && dev->fmt->planar) {
414 ctrl |= SAA7134_MAIN_CTRL_TE4 |
415 SAA7134_MAIN_CTRL_TE5;
416 }
417
418 /* screen overlay -- dma 0 + video task B */
419 if (dev->ovenable) {
420 task |= 0x10;
421 ctrl |= SAA7134_MAIN_CTRL_TE1;
422 ov = dev->ovfield;
423 }
424
425 /* vbi capture -- dma 0 + vbi task A+B */
426 if (dev->vbi_q.curr) {
427 task |= 0x22;
428 ctrl |= SAA7134_MAIN_CTRL_TE2 |
429 SAA7134_MAIN_CTRL_TE3;
430 irq |= SAA7134_IRQ1_INTE_RA0_7 |
431 SAA7134_IRQ1_INTE_RA0_6 |
432 SAA7134_IRQ1_INTE_RA0_5 |
433 SAA7134_IRQ1_INTE_RA0_4;
434 }
435
436 /* audio capture -- dma 3 */
437 if (dev->dmasound.dma_running) {
438 ctrl |= SAA7134_MAIN_CTRL_TE6;
439 irq |= SAA7134_IRQ1_INTE_RA3_1 |
440 SAA7134_IRQ1_INTE_RA3_0;
441 }
442
443 /* TS capture -- dma 5 */
444 if (dev->ts_q.curr) {
445 ctrl |= SAA7134_MAIN_CTRL_TE5;
446 irq |= SAA7134_IRQ1_INTE_RA2_1 |
447 SAA7134_IRQ1_INTE_RA2_0;
448 }
449
450 /* set task conditions + field handling */
451 if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
452 /* default config -- use full frames */
453 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
454 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
455 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02);
456 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02);
457 split = 0;
458 } else {
459 /* split fields between tasks */
460 if (V4L2_FIELD_TOP == cap) {
461 /* odd A, even B, repeat */
462 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
463 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
464 } else {
465 /* odd B, even A, repeat */
466 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
467 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
468 }
469 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01);
470 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01);
471 split = 1;
472 }
473
474 /* irqs */
475 saa_writeb(SAA7134_REGION_ENABLE, task);
476 saa_writel(SAA7134_IRQ1, irq);
477 saa_andorl(SAA7134_MAIN_CTRL,
478 SAA7134_MAIN_CTRL_TE0 |
479 SAA7134_MAIN_CTRL_TE1 |
480 SAA7134_MAIN_CTRL_TE2 |
481 SAA7134_MAIN_CTRL_TE3 |
482 SAA7134_MAIN_CTRL_TE4 |
483 SAA7134_MAIN_CTRL_TE5 |
484 SAA7134_MAIN_CTRL_TE6,
485 ctrl);
486 core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
487 task, ctrl, irq, split ? "no" : "yes");
488
489 return 0;
490 }
491
492 /* ------------------------------------------------------------------ */
493 /* IRQ handler + helpers */
494
495 static char *irqbits[] = {
496 "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
497 "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
498 "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
499 "GPIO16", "GPIO18", "GPIO22", "GPIO23"
500 };
501 #define IRQBITS ARRAY_SIZE(irqbits)
502
print_irqstatus(struct saa7134_dev * dev,int loop,unsigned long report,unsigned long status)503 static void print_irqstatus(struct saa7134_dev *dev, int loop,
504 unsigned long report, unsigned long status)
505 {
506 unsigned int i;
507
508 irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
509 loop, jiffies, report, status);
510 for (i = 0; i < IRQBITS; i++) {
511 if (!(report & (1 << i)))
512 continue;
513 pr_cont(" %s", irqbits[i]);
514 }
515 if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
516 pr_cont(" | RA0=%s,%s,%s,%ld",
517 (status & 0x40) ? "vbi" : "video",
518 (status & 0x20) ? "b" : "a",
519 (status & 0x10) ? "odd" : "even",
520 (status & 0x0f));
521 }
522 pr_cont("\n");
523 }
524
saa7134_irq(int irq,void * dev_id)525 static irqreturn_t saa7134_irq(int irq, void *dev_id)
526 {
527 struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
528 unsigned long report,status;
529 int loop, handled = 0;
530
531 if (dev->insuspend)
532 goto out;
533
534 for (loop = 0; loop < 10; loop++) {
535 report = saa_readl(SAA7134_IRQ_REPORT);
536 status = saa_readl(SAA7134_IRQ_STATUS);
537
538 /* If dmasound support is active and we get a sound report,
539 * mask out the report and let the saa7134-alsa module deal
540 * with it */
541 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
542 (dev->dmasound.priv_data != NULL) )
543 {
544 irq_dbg(2, "preserving DMA sound interrupt\n");
545 report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
546 }
547
548 if (0 == report) {
549 irq_dbg(2, "no (more) work\n");
550 goto out;
551 }
552
553 handled = 1;
554 saa_writel(SAA7134_IRQ_REPORT,report);
555 if (irq_debug)
556 print_irqstatus(dev,loop,report,status);
557
558
559 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
560 (report & SAA7134_IRQ_REPORT_INTL))
561 saa7134_irq_video_signalchange(dev);
562
563
564 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
565 (status & 0x60) == 0)
566 saa7134_irq_video_done(dev,status);
567
568 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
569 (status & 0x40) == 0x40)
570 saa7134_irq_vbi_done(dev,status);
571
572 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
573 card_has_mpeg(dev)) {
574 if (dev->mops->irq_ts_done != NULL)
575 dev->mops->irq_ts_done(dev, status);
576 else
577 saa7134_irq_ts_done(dev, status);
578 }
579
580 if (report & SAA7134_IRQ_REPORT_GPIO16) {
581 switch (dev->has_remote) {
582 case SAA7134_REMOTE_GPIO:
583 if (!dev->remote)
584 break;
585 if (dev->remote->mask_keydown & 0x10000) {
586 saa7134_input_irq(dev);
587 }
588 break;
589
590 case SAA7134_REMOTE_I2C:
591 break; /* FIXME: invoke I2C get_key() */
592
593 default: /* GPIO16 not used by IR remote */
594 break;
595 }
596 }
597
598 if (report & SAA7134_IRQ_REPORT_GPIO18) {
599 switch (dev->has_remote) {
600 case SAA7134_REMOTE_GPIO:
601 if (!dev->remote)
602 break;
603 if ((dev->remote->mask_keydown & 0x40000) ||
604 (dev->remote->mask_keyup & 0x40000)) {
605 saa7134_input_irq(dev);
606 }
607 break;
608
609 case SAA7134_REMOTE_I2C:
610 break; /* FIXME: invoke I2C get_key() */
611
612 default: /* GPIO18 not used by IR remote */
613 break;
614 }
615 }
616 }
617
618 if (10 == loop) {
619 print_irqstatus(dev,loop,report,status);
620 if (report & SAA7134_IRQ_REPORT_PE) {
621 /* disable all parity error */
622 pr_warn("%s/irq: looping -- "
623 "clearing PE (parity error!) enable bit\n",dev->name);
624 saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
625 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
626 /* disable gpio16 IRQ */
627 pr_warn("%s/irq: looping -- "
628 "clearing GPIO16 enable bit\n",dev->name);
629 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
630 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
631 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
632 /* disable gpio18 IRQs */
633 pr_warn("%s/irq: looping -- "
634 "clearing GPIO18 enable bit\n",dev->name);
635 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
636 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
637 } else {
638 /* disable all irqs */
639 pr_warn("%s/irq: looping -- "
640 "clearing all enable bits\n",dev->name);
641 saa_writel(SAA7134_IRQ1,0);
642 saa_writel(SAA7134_IRQ2,0);
643 }
644 }
645
646 out:
647 return IRQ_RETVAL(handled);
648 }
649
650 /* ------------------------------------------------------------------ */
651
652 /* early init (no i2c, no irq) */
653
saa7134_hw_enable1(struct saa7134_dev * dev)654 static int saa7134_hw_enable1(struct saa7134_dev *dev)
655 {
656 /* RAM FIFO config */
657 saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
658 saa_writel(SAA7134_THRESHOULD, 0x02020202);
659
660 /* enable audio + video processing */
661 saa_writel(SAA7134_MAIN_CTRL,
662 SAA7134_MAIN_CTRL_VPLLE |
663 SAA7134_MAIN_CTRL_APLLE |
664 SAA7134_MAIN_CTRL_EXOSC |
665 SAA7134_MAIN_CTRL_EVFE1 |
666 SAA7134_MAIN_CTRL_EVFE2 |
667 SAA7134_MAIN_CTRL_ESFE |
668 SAA7134_MAIN_CTRL_EBDAC);
669
670 /*
671 * Initialize OSS _after_ enabling audio clock PLL and audio processing.
672 * OSS initialization writes to registers via the audio DSP; these
673 * writes will fail unless the audio clock has been started. At worst,
674 * audio will not work.
675 */
676
677 /* enable peripheral devices */
678 saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
679
680 /* set vertical line numbering start (vbi needs this) */
681 saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
682
683 return 0;
684 }
685
saa7134_hwinit1(struct saa7134_dev * dev)686 static int saa7134_hwinit1(struct saa7134_dev *dev)
687 {
688 core_dbg("hwinit1\n");
689
690 saa_writel(SAA7134_IRQ1, 0);
691 saa_writel(SAA7134_IRQ2, 0);
692
693 /* Clear any stale IRQ reports */
694 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
695
696 mutex_init(&dev->lock);
697 spin_lock_init(&dev->slock);
698
699 saa7134_track_gpio(dev,"pre-init");
700 saa7134_video_init1(dev);
701 saa7134_vbi_init1(dev);
702 if (card_has_mpeg(dev))
703 saa7134_ts_init1(dev);
704 saa7134_input_init1(dev);
705
706 saa7134_hw_enable1(dev);
707
708 return 0;
709 }
710
711 /* late init (with i2c + irq) */
saa7134_hw_enable2(struct saa7134_dev * dev)712 static int saa7134_hw_enable2(struct saa7134_dev *dev)
713 {
714
715 unsigned int irq2_mask;
716
717 /* enable IRQ's */
718 irq2_mask =
719 SAA7134_IRQ2_INTE_DEC3 |
720 SAA7134_IRQ2_INTE_DEC2 |
721 SAA7134_IRQ2_INTE_DEC1 |
722 SAA7134_IRQ2_INTE_DEC0 |
723 SAA7134_IRQ2_INTE_PE |
724 SAA7134_IRQ2_INTE_AR;
725
726 if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
727 if (dev->remote->mask_keydown & 0x10000)
728 irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
729 else { /* Allow enabling both IRQ edge triggers */
730 if (dev->remote->mask_keydown & 0x40000)
731 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
732 if (dev->remote->mask_keyup & 0x40000)
733 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
734 }
735 }
736
737 if (dev->has_remote == SAA7134_REMOTE_I2C) {
738 request_module("ir-kbd-i2c");
739 }
740
741 saa_writel(SAA7134_IRQ1, 0);
742 saa_writel(SAA7134_IRQ2, irq2_mask);
743
744 return 0;
745 }
746
saa7134_hwinit2(struct saa7134_dev * dev)747 static int saa7134_hwinit2(struct saa7134_dev *dev)
748 {
749
750 core_dbg("hwinit2\n");
751
752 saa7134_video_init2(dev);
753 saa7134_tvaudio_init2(dev);
754
755 saa7134_hw_enable2(dev);
756
757 return 0;
758 }
759
760
761 /* shutdown */
saa7134_hwfini(struct saa7134_dev * dev)762 static int saa7134_hwfini(struct saa7134_dev *dev)
763 {
764 core_dbg("hwfini\n");
765
766 if (card_has_mpeg(dev))
767 saa7134_ts_fini(dev);
768 saa7134_input_fini(dev);
769 saa7134_vbi_fini(dev);
770 saa7134_tvaudio_fini(dev);
771 saa7134_video_fini(dev);
772 return 0;
773 }
774
must_configure_manually(int has_eeprom)775 static void must_configure_manually(int has_eeprom)
776 {
777 unsigned int i,p;
778
779 if (!has_eeprom)
780 pr_warn("saa7134: <rant>\n"
781 "saa7134: Congratulations! Your TV card vendor saved a few\n"
782 "saa7134: cents for a eeprom, thus your pci board has no\n"
783 "saa7134: subsystem ID and I can't identify it automatically\n"
784 "saa7134: </rant>\n"
785 "saa7134: I feel better now. Ok, here are the good news:\n"
786 "saa7134: You can use the card=<nr> insmod option to specify\n"
787 "saa7134: which board do you have. The list:\n");
788 else
789 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
790 "saa7134: insmod option to specify which board do you have, but this is\n"
791 "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
792 "saa7134: for support at linux-media@vger.kernel.org.\n"
793 "saa7134: The supported cards are:\n");
794
795 for (i = 0; i < saa7134_bcount; i++) {
796 pr_warn("saa7134: card=%d -> %-40.40s",
797 i,saa7134_boards[i].name);
798 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
799 if (saa7134_pci_tbl[p].driver_data != i)
800 continue;
801 pr_cont(" %04x:%04x",
802 saa7134_pci_tbl[p].subvendor,
803 saa7134_pci_tbl[p].subdevice);
804 }
805 pr_cont("\n");
806 }
807 }
808
saa7134_unregister_media_device(struct saa7134_dev * dev)809 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
810 {
811
812 #ifdef CONFIG_MEDIA_CONTROLLER
813 if (!dev->media_dev)
814 return;
815 media_device_unregister(dev->media_dev);
816 media_device_cleanup(dev->media_dev);
817 kfree(dev->media_dev);
818 dev->media_dev = NULL;
819 #endif
820 }
821
saa7134_media_release(struct saa7134_dev * dev)822 static void saa7134_media_release(struct saa7134_dev *dev)
823 {
824 #ifdef CONFIG_MEDIA_CONTROLLER
825 int i;
826
827 for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
828 media_device_unregister_entity(&dev->input_ent[i]);
829 #endif
830 }
831
832 #if defined(CONFIG_MEDIA_CONTROLLER)
saa7134_create_entities(struct saa7134_dev * dev)833 static void saa7134_create_entities(struct saa7134_dev *dev)
834 {
835 int ret, i;
836 struct media_entity *entity;
837 struct media_entity *decoder = NULL;
838
839 /* Check if it is using an external analog TV demod */
840 media_device_for_each_entity(entity, dev->media_dev) {
841 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
842 decoder = entity;
843 break;
844 }
845 }
846
847 /*
848 * saa713x is not using an external ATV demod.
849 * Register the internal one
850 */
851 if (!decoder) {
852 dev->demod.name = "saa713x";
853 dev->demod_pad[DEMOD_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
854 dev->demod_pad[DEMOD_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
855 dev->demod_pad[DEMOD_PAD_VBI_OUT].flags = MEDIA_PAD_FL_SOURCE;
856 dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
857
858 ret = media_entity_pads_init(&dev->demod, DEMOD_NUM_PADS,
859 dev->demod_pad);
860 if (ret < 0)
861 pr_err("failed to initialize demod pad!\n");
862
863 ret = media_device_register_entity(dev->media_dev, &dev->demod);
864 if (ret < 0)
865 pr_err("failed to register demod entity!\n");
866
867 dev->decoder = &dev->demod;
868 } else {
869 dev->decoder = decoder;
870 }
871
872 /* Initialize Video, VBI and Radio pads */
873 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
874 ret = media_entity_pads_init(&dev->video_dev->entity, 1,
875 &dev->video_pad);
876 if (ret < 0)
877 pr_err("failed to initialize video media entity!\n");
878
879 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
880 ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
881 &dev->vbi_pad);
882 if (ret < 0)
883 pr_err("failed to initialize vbi media entity!\n");
884
885 /* Create entities for each input connector */
886 for (i = 0; i < SAA7134_INPUT_MAX; i++) {
887 struct media_entity *ent = &dev->input_ent[i];
888 struct saa7134_input *in = &card_in(dev, i);
889
890 if (in->type == SAA7134_NO_INPUT)
891 break;
892
893 /* This input uses the S-Video connector */
894 if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
895 continue;
896
897 ent->name = saa7134_input_name[in->type];
898 ent->flags = MEDIA_ENT_FL_CONNECTOR;
899 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
900
901 switch (in->type) {
902 case SAA7134_INPUT_COMPOSITE:
903 case SAA7134_INPUT_COMPOSITE0:
904 case SAA7134_INPUT_COMPOSITE1:
905 case SAA7134_INPUT_COMPOSITE2:
906 case SAA7134_INPUT_COMPOSITE3:
907 case SAA7134_INPUT_COMPOSITE4:
908 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
909 break;
910 case SAA7134_INPUT_SVIDEO:
911 case SAA7134_INPUT_SVIDEO0:
912 case SAA7134_INPUT_SVIDEO1:
913 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
914 break;
915 default:
916 /*
917 * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
918 *
919 * Please notice that neither SAA7134_INPUT_MUTE or
920 * SAA7134_INPUT_RADIO are defined at
921 * saa7134_board.input.
922 */
923 ent->function = MEDIA_ENT_F_CONN_RF;
924 break;
925 }
926
927 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
928 if (ret < 0)
929 pr_err("failed to initialize input pad[%d]!\n", i);
930
931 ret = media_device_register_entity(dev->media_dev, ent);
932 if (ret < 0)
933 pr_err("failed to register input entity %d!\n", i);
934 }
935
936 /* Create input for Radio RF connector */
937 if (card_has_radio(dev)) {
938 struct saa7134_input *in = &saa7134_boards[dev->board].radio;
939 struct media_entity *ent = &dev->input_ent[i];
940
941 ent->name = saa7134_input_name[in->type];
942 ent->flags = MEDIA_ENT_FL_CONNECTOR;
943 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
944 ent->function = MEDIA_ENT_F_CONN_RF;
945
946 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
947 if (ret < 0)
948 pr_err("failed to initialize input pad[%d]!\n", i);
949
950 ret = media_device_register_entity(dev->media_dev, ent);
951 if (ret < 0)
952 pr_err("failed to register input entity %d!\n", i);
953 }
954 }
955 #endif
956
vdev_init(struct saa7134_dev * dev,struct video_device * template,char * type)957 static struct video_device *vdev_init(struct saa7134_dev *dev,
958 struct video_device *template,
959 char *type)
960 {
961 struct video_device *vfd;
962
963 vfd = video_device_alloc();
964 if (NULL == vfd)
965 return NULL;
966 *vfd = *template;
967 vfd->v4l2_dev = &dev->v4l2_dev;
968 vfd->release = video_device_release;
969 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
970 dev->name, type, saa7134_boards[dev->board].name);
971 video_set_drvdata(vfd, dev);
972 return vfd;
973 }
974
saa7134_unregister_video(struct saa7134_dev * dev)975 static void saa7134_unregister_video(struct saa7134_dev *dev)
976 {
977 saa7134_media_release(dev);
978
979 if (dev->video_dev) {
980 if (video_is_registered(dev->video_dev))
981 video_unregister_device(dev->video_dev);
982 else
983 video_device_release(dev->video_dev);
984 dev->video_dev = NULL;
985 }
986 if (dev->vbi_dev) {
987 if (video_is_registered(dev->vbi_dev))
988 video_unregister_device(dev->vbi_dev);
989 else
990 video_device_release(dev->vbi_dev);
991 dev->vbi_dev = NULL;
992 }
993 if (dev->radio_dev) {
994 if (video_is_registered(dev->radio_dev))
995 video_unregister_device(dev->radio_dev);
996 else
997 video_device_release(dev->radio_dev);
998 dev->radio_dev = NULL;
999 }
1000 }
1001
mpeg_ops_attach(struct saa7134_mpeg_ops * ops,struct saa7134_dev * dev)1002 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
1003 struct saa7134_dev *dev)
1004 {
1005 int err;
1006
1007 if (NULL != dev->mops)
1008 return;
1009 if (saa7134_boards[dev->board].mpeg != ops->type)
1010 return;
1011 err = ops->init(dev);
1012 if (0 != err)
1013 return;
1014 dev->mops = ops;
1015 }
1016
mpeg_ops_detach(struct saa7134_mpeg_ops * ops,struct saa7134_dev * dev)1017 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1018 struct saa7134_dev *dev)
1019 {
1020 if (NULL == dev->mops)
1021 return;
1022 if (dev->mops != ops)
1023 return;
1024 dev->mops->fini(dev);
1025 dev->mops = NULL;
1026 }
1027
saa7134_initdev(struct pci_dev * pci_dev,const struct pci_device_id * pci_id)1028 static int saa7134_initdev(struct pci_dev *pci_dev,
1029 const struct pci_device_id *pci_id)
1030 {
1031 struct saa7134_dev *dev;
1032 struct saa7134_mpeg_ops *mops;
1033 int err;
1034
1035 if (saa7134_devcount == SAA7134_MAXBOARDS)
1036 return -ENOMEM;
1037
1038 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1039 if (NULL == dev)
1040 return -ENOMEM;
1041
1042 dev->nr = saa7134_devcount;
1043 sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1044
1045 #ifdef CONFIG_MEDIA_CONTROLLER
1046 dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1047 if (!dev->media_dev) {
1048 err = -ENOMEM;
1049 goto fail0;
1050 }
1051 media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1052 dev->v4l2_dev.mdev = dev->media_dev;
1053 #endif
1054
1055 err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1056 if (err)
1057 goto fail0;
1058
1059 /* pci init */
1060 dev->pci = pci_dev;
1061 if (pci_enable_device(pci_dev)) {
1062 err = -EIO;
1063 goto fail1;
1064 }
1065
1066 /* pci quirks */
1067 if (pci_pci_problems) {
1068 if (pci_pci_problems & PCIPCI_TRITON)
1069 pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1070 if (pci_pci_problems & PCIPCI_NATOMA)
1071 pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1072 if (pci_pci_problems & PCIPCI_VIAETBF)
1073 pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1074 if (pci_pci_problems & PCIPCI_VSFX)
1075 pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1076 #ifdef PCIPCI_ALIMAGIK
1077 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1078 pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1079 dev->name);
1080 latency = 0x0A;
1081 }
1082 #endif
1083 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1084 pr_info("%s: quirk: this driver and your "
1085 "chipset may not work together"
1086 " in overlay mode.\n",dev->name);
1087 if (!saa7134_no_overlay) {
1088 pr_info("%s: quirk: overlay "
1089 "mode will be disabled.\n",
1090 dev->name);
1091 saa7134_no_overlay = 1;
1092 } else {
1093 pr_info("%s: quirk: overlay "
1094 "mode will be forced. Use this"
1095 " option at your own risk.\n",
1096 dev->name);
1097 }
1098 }
1099 }
1100 if (UNSET != latency) {
1101 pr_info("%s: setting pci latency timer to %d\n",
1102 dev->name,latency);
1103 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1104 }
1105
1106 /* print pci info */
1107 dev->pci_rev = pci_dev->revision;
1108 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
1109 pr_info("%s: found at %s, rev: %d, irq: %d, "
1110 "latency: %d, mmio: 0x%llx\n", dev->name,
1111 pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1112 dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));
1113 pci_set_master(pci_dev);
1114 err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1115 if (err) {
1116 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1117 goto fail1;
1118 }
1119
1120 /* board config */
1121 dev->board = pci_id->driver_data;
1122 if ((unsigned)card[dev->nr] < saa7134_bcount)
1123 dev->board = card[dev->nr];
1124 if (SAA7134_BOARD_UNKNOWN == dev->board)
1125 must_configure_manually(0);
1126 else if (SAA7134_BOARD_NOAUTO == dev->board) {
1127 must_configure_manually(1);
1128 dev->board = SAA7134_BOARD_UNKNOWN;
1129 }
1130 dev->autodetected = card[dev->nr] != dev->board;
1131 dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1132 dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1133 dev->radio_type = saa7134_boards[dev->board].radio_type;
1134 dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1135 dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1136 if (UNSET != tuner[dev->nr])
1137 dev->tuner_type = tuner[dev->nr];
1138 pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1139 dev->name,pci_dev->subsystem_vendor,
1140 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1141 dev->board, dev->autodetected ?
1142 "autodetected" : "insmod option");
1143
1144 /* get mmio */
1145 if (!request_mem_region(pci_resource_start(pci_dev,0),
1146 pci_resource_len(pci_dev,0),
1147 dev->name)) {
1148 err = -EBUSY;
1149 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1150 dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1151 goto fail1;
1152 }
1153 dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1154 pci_resource_len(pci_dev, 0));
1155 dev->bmmio = (__u8 __iomem *)dev->lmmio;
1156 if (NULL == dev->lmmio) {
1157 err = -EIO;
1158 pr_err("%s: can't ioremap() MMIO memory\n",
1159 dev->name);
1160 goto fail2;
1161 }
1162
1163 /* initialize hardware #1 */
1164 saa7134_board_init1(dev);
1165 saa7134_hwinit1(dev);
1166
1167 /* get irq */
1168 err = request_irq(pci_dev->irq, saa7134_irq,
1169 IRQF_SHARED, dev->name, dev);
1170 if (err < 0) {
1171 pr_err("%s: can't get IRQ %d\n",
1172 dev->name,pci_dev->irq);
1173 goto fail3;
1174 }
1175
1176 /* wait a bit, register i2c bus */
1177 msleep(100);
1178 saa7134_i2c_register(dev);
1179 saa7134_board_init2(dev);
1180
1181 saa7134_hwinit2(dev);
1182
1183 /* load i2c helpers */
1184 if (card_is_empress(dev)) {
1185 dev->empress_sd =
1186 v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1187 "saa6752hs",
1188 saa7134_boards[dev->board].empress_addr, NULL);
1189
1190 if (dev->empress_sd)
1191 dev->empress_sd->grp_id = GRP_EMPRESS;
1192 }
1193
1194 if (saa7134_boards[dev->board].rds_addr) {
1195 struct v4l2_subdev *sd;
1196
1197 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1198 &dev->i2c_adap, "saa6588",
1199 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1200 if (sd) {
1201 pr_info("%s: found RDS decoder\n", dev->name);
1202 dev->has_rds = 1;
1203 }
1204 }
1205
1206 mutex_lock(&saa7134_devlist_lock);
1207 list_for_each_entry(mops, &mops_list, next)
1208 mpeg_ops_attach(mops, dev);
1209 list_add_tail(&dev->devlist, &saa7134_devlist);
1210 mutex_unlock(&saa7134_devlist_lock);
1211
1212 /* check for signal */
1213 saa7134_irq_video_signalchange(dev);
1214
1215 if (TUNER_ABSENT != dev->tuner_type)
1216 saa_call_all(dev, core, s_power, 0);
1217
1218 /* register v4l devices */
1219 if (saa7134_no_overlay > 0)
1220 pr_info("%s: Overlay support disabled.\n", dev->name);
1221
1222 dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1223 dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1224 dev->video_dev->lock = &dev->lock;
1225 dev->video_dev->queue = &dev->video_vbq;
1226 err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1227 video_nr[dev->nr]);
1228 if (err < 0) {
1229 pr_info("%s: can't register video device\n",
1230 dev->name);
1231 goto fail4;
1232 }
1233 pr_info("%s: registered device %s [v4l2]\n",
1234 dev->name, video_device_node_name(dev->video_dev));
1235
1236 dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1237 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1238 dev->vbi_dev->lock = &dev->lock;
1239 dev->vbi_dev->queue = &dev->vbi_vbq;
1240
1241 err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1242 vbi_nr[dev->nr]);
1243 if (err < 0)
1244 goto fail4;
1245 pr_info("%s: registered device %s\n",
1246 dev->name, video_device_node_name(dev->vbi_dev));
1247
1248 if (card_has_radio(dev)) {
1249 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1250 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1251 dev->radio_dev->lock = &dev->lock;
1252 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1253 radio_nr[dev->nr]);
1254 if (err < 0)
1255 goto fail4;
1256 pr_info("%s: registered device %s\n",
1257 dev->name, video_device_node_name(dev->radio_dev));
1258 }
1259
1260 #ifdef CONFIG_MEDIA_CONTROLLER
1261 saa7134_create_entities(dev);
1262
1263 err = v4l2_mc_create_media_graph(dev->media_dev);
1264 if (err) {
1265 pr_err("failed to create media graph\n");
1266 goto fail4;
1267 }
1268 #endif
1269 /* everything worked */
1270 saa7134_devcount++;
1271
1272 if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1273 saa7134_dmasound_init(dev);
1274
1275 request_submodules(dev);
1276
1277 /*
1278 * Do it at the end, to reduce dynamic configuration changes during
1279 * the device init. Yet, as request_modules() can be async, the
1280 * topology will likely change after load the saa7134 subdrivers.
1281 */
1282 #ifdef CONFIG_MEDIA_CONTROLLER
1283 err = media_device_register(dev->media_dev);
1284 if (err)
1285 goto fail4;
1286 #endif
1287
1288 return 0;
1289
1290 fail4:
1291 saa7134_unregister_video(dev);
1292 saa7134_i2c_unregister(dev);
1293 free_irq(pci_dev->irq, dev);
1294 fail3:
1295 saa7134_hwfini(dev);
1296 iounmap(dev->lmmio);
1297 fail2:
1298 release_mem_region(pci_resource_start(pci_dev,0),
1299 pci_resource_len(pci_dev,0));
1300 fail1:
1301 v4l2_device_unregister(&dev->v4l2_dev);
1302 fail0:
1303 #ifdef CONFIG_MEDIA_CONTROLLER
1304 kfree(dev->media_dev);
1305 #endif
1306 kfree(dev);
1307 return err;
1308 }
1309
saa7134_finidev(struct pci_dev * pci_dev)1310 static void saa7134_finidev(struct pci_dev *pci_dev)
1311 {
1312 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1313 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1314 struct saa7134_mpeg_ops *mops;
1315
1316 flush_request_submodules(dev);
1317
1318 /* Release DMA sound modules if present */
1319 if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1320 saa7134_dmasound_exit(dev);
1321 }
1322
1323 /* debugging ... */
1324 if (irq_debug) {
1325 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1326 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1327 print_irqstatus(dev,42,report,status);
1328 }
1329
1330 /* disable peripheral devices */
1331 saa_writeb(SAA7134_SPECIAL_MODE,0);
1332
1333 /* shutdown hardware */
1334 saa_writel(SAA7134_IRQ1,0);
1335 saa_writel(SAA7134_IRQ2,0);
1336 saa_writel(SAA7134_MAIN_CTRL,0);
1337
1338 /* shutdown subsystems */
1339 saa7134_hwfini(dev);
1340
1341 /* unregister */
1342 mutex_lock(&saa7134_devlist_lock);
1343 list_del(&dev->devlist);
1344 list_for_each_entry(mops, &mops_list, next)
1345 mpeg_ops_detach(mops, dev);
1346 mutex_unlock(&saa7134_devlist_lock);
1347 saa7134_devcount--;
1348
1349 saa7134_i2c_unregister(dev);
1350 saa7134_unregister_video(dev);
1351
1352
1353 /* the DMA sound modules should be unloaded before reaching
1354 this, but just in case they are still present... */
1355 if (dev->dmasound.priv_data != NULL) {
1356 free_irq(pci_dev->irq, &dev->dmasound);
1357 dev->dmasound.priv_data = NULL;
1358 }
1359
1360
1361 /* release resources */
1362 free_irq(pci_dev->irq, dev);
1363 iounmap(dev->lmmio);
1364 release_mem_region(pci_resource_start(pci_dev,0),
1365 pci_resource_len(pci_dev,0));
1366
1367 v4l2_device_unregister(&dev->v4l2_dev);
1368
1369 saa7134_unregister_media_device(dev);
1370
1371 /* free memory */
1372 kfree(dev);
1373 }
1374
1375 #ifdef CONFIG_PM
1376
1377 /* resends a current buffer in queue after resume */
saa7134_buffer_requeue(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)1378 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1379 struct saa7134_dmaqueue *q)
1380 {
1381 struct saa7134_buf *buf, *next;
1382
1383 assert_spin_locked(&dev->slock);
1384
1385 buf = q->curr;
1386 next = buf;
1387 core_dbg("buffer_requeue\n");
1388
1389 if (!buf)
1390 return 0;
1391
1392 core_dbg("buffer_requeue : resending active buffer\n");
1393
1394 if (!list_empty(&q->queue))
1395 next = list_entry(q->queue.next, struct saa7134_buf,
1396 entry);
1397 buf->activate(dev, buf, next);
1398
1399 return 0;
1400 }
1401
saa7134_suspend(struct pci_dev * pci_dev,pm_message_t state)1402 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1403 {
1404 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1405 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1406
1407 /* disable overlay - apps should enable it explicitly on resume*/
1408 dev->ovenable = 0;
1409
1410 /* Disable interrupts, DMA, and rest of the chip*/
1411 saa_writel(SAA7134_IRQ1, 0);
1412 saa_writel(SAA7134_IRQ2, 0);
1413 saa_writel(SAA7134_MAIN_CTRL, 0);
1414
1415 dev->insuspend = 1;
1416 synchronize_irq(pci_dev->irq);
1417
1418 /* ACK interrupts once more, just in case,
1419 since the IRQ handler won't ack them anymore*/
1420
1421 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1422
1423 /* Disable timeout timers - if we have active buffers, we will
1424 fill them on resume*/
1425
1426 del_timer(&dev->video_q.timeout);
1427 del_timer(&dev->vbi_q.timeout);
1428 del_timer(&dev->ts_q.timeout);
1429
1430 if (dev->remote)
1431 saa7134_ir_stop(dev);
1432
1433 pci_save_state(pci_dev);
1434 pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1435
1436 return 0;
1437 }
1438
saa7134_resume(struct pci_dev * pci_dev)1439 static int saa7134_resume(struct pci_dev *pci_dev)
1440 {
1441 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1442 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1443 unsigned long flags;
1444
1445 pci_set_power_state(pci_dev, PCI_D0);
1446 pci_restore_state(pci_dev);
1447
1448 /* Do things that are done in saa7134_initdev ,
1449 except of initializing memory structures.*/
1450
1451 saa7134_board_init1(dev);
1452
1453 /* saa7134_hwinit1 */
1454 if (saa7134_boards[dev->board].video_out)
1455 saa7134_videoport_init(dev);
1456 if (card_has_mpeg(dev))
1457 saa7134_ts_init_hw(dev);
1458 if (dev->remote)
1459 saa7134_ir_start(dev);
1460 saa7134_hw_enable1(dev);
1461
1462 msleep(100);
1463
1464 saa7134_board_init2(dev);
1465
1466 /*saa7134_hwinit2*/
1467 saa7134_set_tvnorm_hw(dev);
1468 saa7134_tvaudio_setmute(dev);
1469 saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1470 saa7134_tvaudio_init(dev);
1471 saa7134_enable_i2s(dev);
1472 saa7134_hw_enable2(dev);
1473
1474 saa7134_irq_video_signalchange(dev);
1475
1476 /*resume unfinished buffer(s)*/
1477 spin_lock_irqsave(&dev->slock, flags);
1478 saa7134_buffer_requeue(dev, &dev->video_q);
1479 saa7134_buffer_requeue(dev, &dev->vbi_q);
1480 saa7134_buffer_requeue(dev, &dev->ts_q);
1481
1482 /* FIXME: Disable DMA audio sound - temporary till proper support
1483 is implemented*/
1484
1485 dev->dmasound.dma_running = 0;
1486
1487 /* start DMA now*/
1488 dev->insuspend = 0;
1489 smp_wmb();
1490 saa7134_set_dmabits(dev);
1491 spin_unlock_irqrestore(&dev->slock, flags);
1492
1493 return 0;
1494 }
1495 #endif
1496
1497 /* ----------------------------------------------------------- */
1498
saa7134_ts_register(struct saa7134_mpeg_ops * ops)1499 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1500 {
1501 struct saa7134_dev *dev;
1502
1503 mutex_lock(&saa7134_devlist_lock);
1504 list_for_each_entry(dev, &saa7134_devlist, devlist)
1505 mpeg_ops_attach(ops, dev);
1506 list_add_tail(&ops->next,&mops_list);
1507 mutex_unlock(&saa7134_devlist_lock);
1508 return 0;
1509 }
1510
saa7134_ts_unregister(struct saa7134_mpeg_ops * ops)1511 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1512 {
1513 struct saa7134_dev *dev;
1514
1515 mutex_lock(&saa7134_devlist_lock);
1516 list_del(&ops->next);
1517 list_for_each_entry(dev, &saa7134_devlist, devlist)
1518 mpeg_ops_detach(ops, dev);
1519 mutex_unlock(&saa7134_devlist_lock);
1520 }
1521
1522 EXPORT_SYMBOL(saa7134_ts_register);
1523 EXPORT_SYMBOL(saa7134_ts_unregister);
1524
1525 /* ----------------------------------------------------------- */
1526
1527 static struct pci_driver saa7134_pci_driver = {
1528 .name = "saa7134",
1529 .id_table = saa7134_pci_tbl,
1530 .probe = saa7134_initdev,
1531 .remove = saa7134_finidev,
1532 #ifdef CONFIG_PM
1533 .suspend = saa7134_suspend,
1534 .resume = saa7134_resume
1535 #endif
1536 };
1537
saa7134_init(void)1538 static int __init saa7134_init(void)
1539 {
1540 INIT_LIST_HEAD(&saa7134_devlist);
1541 pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1542 SAA7134_VERSION);
1543 return pci_register_driver(&saa7134_pci_driver);
1544 }
1545
saa7134_fini(void)1546 static void __exit saa7134_fini(void)
1547 {
1548 pci_unregister_driver(&saa7134_pci_driver);
1549 }
1550
1551 module_init(saa7134_init);
1552 module_exit(saa7134_fini);
1553
1554 /* ----------------------------------------------------------- */
1555
1556 EXPORT_SYMBOL(saa7134_set_gpio);
1557 EXPORT_SYMBOL(saa7134_boards);
1558
1559 /* ----------------- for the DMA sound modules --------------- */
1560
1561 EXPORT_SYMBOL(saa7134_dmasound_init);
1562 EXPORT_SYMBOL(saa7134_dmasound_exit);
1563 EXPORT_SYMBOL(saa7134_pgtable_free);
1564 EXPORT_SYMBOL(saa7134_pgtable_build);
1565 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1566 EXPORT_SYMBOL(saa7134_set_dmabits);
1567