1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 *
4 * device driver for philips saa7134 based TV cards
5 * driver core
6 *
7 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
8 */
9
10 #include "saa7134.h"
11 #include "saa7134-reg.h"
12
13 #include <linux/init.h>
14 #include <linux/list.h>
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/slab.h>
18 #include <linux/kmod.h>
19 #include <linux/sound.h>
20 #include <linux/interrupt.h>
21 #include <linux/delay.h>
22 #include <linux/mutex.h>
23 #include <linux/dma-mapping.h>
24 #include <linux/pm.h>
25
26 MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
27 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
28 MODULE_LICENSE("GPL");
29 MODULE_VERSION(SAA7134_VERSION);
30
31
32 /* ------------------------------------------------------------------ */
33
34 static unsigned int irq_debug;
35 module_param(irq_debug, int, 0644);
36 MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
37
38 static unsigned int core_debug;
39 module_param(core_debug, int, 0644);
40 MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
41
42 static unsigned int gpio_tracking;
43 module_param(gpio_tracking, int, 0644);
44 MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
45
46 static unsigned int alsa = 1;
47 module_param(alsa, int, 0644);
48 MODULE_PARM_DESC(alsa,"enable/disable ALSA DMA sound [dmasound]");
49
50 static unsigned int latency = UNSET;
51 module_param(latency, int, 0444);
52 MODULE_PARM_DESC(latency,"pci latency timer");
53
54 int saa7134_no_overlay=-1;
55 module_param_named(no_overlay, saa7134_no_overlay, int, 0444);
56 MODULE_PARM_DESC(no_overlay, "allow override overlay default (0 disables, 1 enables) [some VIA/SIS chipsets are known to have problem with overlay]");
57
58 bool saa7134_userptr;
59 module_param(saa7134_userptr, bool, 0644);
60 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
61
62 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
63 static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
64 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
65 static unsigned int tuner[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
66 static unsigned int card[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
67
68
69 module_param_array(video_nr, int, NULL, 0444);
70 module_param_array(vbi_nr, int, NULL, 0444);
71 module_param_array(radio_nr, int, NULL, 0444);
72 module_param_array(tuner, int, NULL, 0444);
73 module_param_array(card, int, NULL, 0444);
74
75 MODULE_PARM_DESC(video_nr, "video device number");
76 MODULE_PARM_DESC(vbi_nr, "vbi device number");
77 MODULE_PARM_DESC(radio_nr, "radio device number");
78 MODULE_PARM_DESC(tuner, "tuner type");
79 MODULE_PARM_DESC(card, "card type");
80
81 DEFINE_MUTEX(saa7134_devlist_lock);
82 EXPORT_SYMBOL(saa7134_devlist_lock);
83 LIST_HEAD(saa7134_devlist);
84 EXPORT_SYMBOL(saa7134_devlist);
85 static LIST_HEAD(mops_list);
86 static unsigned int saa7134_devcount;
87
88 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
89 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
90
91 #define core_dbg(fmt, arg...) do { \
92 if (core_debug) \
93 printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
94 } while (0)
95
96 #define irq_dbg(level, fmt, arg...) do {\
97 if (irq_debug > level) \
98 printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
99 } while (0)
100
saa7134_track_gpio(struct saa7134_dev * dev,const char * msg)101 void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
102 {
103 unsigned long mode,status;
104
105 if (!gpio_tracking)
106 return;
107 /* rising SAA7134_GPIO_GPRESCAN reads the status */
108 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
109 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
110 mode = saa_readl(SAA7134_GPIO_GPMODE0 >> 2) & 0xfffffff;
111 status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
112 core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
113 dev->name, mode, (~mode) & status, mode & status, msg);
114 }
115
saa7134_set_gpio(struct saa7134_dev * dev,int bit_no,int value)116 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
117 {
118 u32 index, bitval;
119
120 index = 1 << bit_no;
121 switch (value) {
122 case 0: /* static value */
123 case 1:
124 core_dbg("setting GPIO%d to static %d\n", bit_no, value);
125 /* turn sync mode off if necessary */
126 if (index & 0x00c00000)
127 saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
128 if (value)
129 bitval = index;
130 else
131 bitval = 0;
132 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
133 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
134 break;
135 case 3: /* tristate */
136 core_dbg("setting GPIO%d to tristate\n", bit_no);
137 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
138 break;
139 }
140 }
141
142 /* ------------------------------------------------------------------ */
143
144
145 /* ----------------------------------------------------------- */
146 /* delayed request_module */
147
148 #if defined(CONFIG_MODULES) && defined(MODULE)
149
request_module_async(struct work_struct * work)150 static void request_module_async(struct work_struct *work){
151 struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
152 if (card_is_empress(dev))
153 request_module("saa7134-empress");
154 if (card_is_dvb(dev))
155 request_module("saa7134-dvb");
156 if (card_is_go7007(dev))
157 request_module("saa7134-go7007");
158 if (alsa) {
159 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
160 request_module("saa7134-alsa");
161 }
162 }
163
request_submodules(struct saa7134_dev * dev)164 static void request_submodules(struct saa7134_dev *dev)
165 {
166 INIT_WORK(&dev->request_module_wk, request_module_async);
167 schedule_work(&dev->request_module_wk);
168 }
169
flush_request_submodules(struct saa7134_dev * dev)170 static void flush_request_submodules(struct saa7134_dev *dev)
171 {
172 flush_work(&dev->request_module_wk);
173 }
174
175 #else
176 #define request_submodules(dev)
177 #define flush_request_submodules(dev)
178 #endif /* CONFIG_MODULES */
179
180 /* ------------------------------------------------------------------ */
181
182 /* nr of (saa7134-)pages for the given buffer size */
saa7134_buffer_pages(int size)183 static int saa7134_buffer_pages(int size)
184 {
185 size = PAGE_ALIGN(size);
186 size += PAGE_SIZE; /* for non-page-aligned buffers */
187 size /= 4096;
188 return size;
189 }
190
191 /* calc max # of buffers from size (must not exceed the 4MB virtual
192 * address space per DMA channel) */
saa7134_buffer_count(unsigned int size,unsigned int count)193 int saa7134_buffer_count(unsigned int size, unsigned int count)
194 {
195 unsigned int maxcount;
196
197 maxcount = 1024 / saa7134_buffer_pages(size);
198 if (count > maxcount)
199 count = maxcount;
200 return count;
201 }
202
saa7134_buffer_startpage(struct saa7134_buf * buf)203 int saa7134_buffer_startpage(struct saa7134_buf *buf)
204 {
205 return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
206 * buf->vb2.vb2_buf.index;
207 }
208
saa7134_buffer_base(struct saa7134_buf * buf)209 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
210 {
211 unsigned long base;
212 struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);
213
214 base = saa7134_buffer_startpage(buf) * 4096;
215 base += dma->sgl[0].offset;
216 return base;
217 }
218
219 /* ------------------------------------------------------------------ */
220
saa7134_pgtable_alloc(struct pci_dev * pci,struct saa7134_pgtable * pt)221 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
222 {
223 __le32 *cpu;
224 dma_addr_t dma_addr = 0;
225
226 cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
227 if (NULL == cpu)
228 return -ENOMEM;
229 pt->size = SAA7134_PGTABLE_SIZE;
230 pt->cpu = cpu;
231 pt->dma = dma_addr;
232 return 0;
233 }
234
saa7134_pgtable_build(struct pci_dev * pci,struct saa7134_pgtable * pt,struct scatterlist * list,unsigned int length,unsigned int startpage)235 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
236 struct scatterlist *list, unsigned int length,
237 unsigned int startpage)
238 {
239 __le32 *ptr;
240 unsigned int i, p;
241
242 BUG_ON(NULL == pt || NULL == pt->cpu);
243
244 ptr = pt->cpu + startpage;
245 for (i = 0; i < length; i++, list = sg_next(list)) {
246 for (p = 0; p * 4096 < list->length; p++, ptr++)
247 *ptr = cpu_to_le32(sg_dma_address(list) +
248 list->offset + p * 4096);
249 }
250 return 0;
251 }
252
saa7134_pgtable_free(struct pci_dev * pci,struct saa7134_pgtable * pt)253 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
254 {
255 if (NULL == pt->cpu)
256 return;
257 pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
258 pt->cpu = NULL;
259 }
260
261 /* ------------------------------------------------------------------ */
262
saa7134_buffer_queue(struct saa7134_dev * dev,struct saa7134_dmaqueue * q,struct saa7134_buf * buf)263 int saa7134_buffer_queue(struct saa7134_dev *dev,
264 struct saa7134_dmaqueue *q,
265 struct saa7134_buf *buf)
266 {
267 struct saa7134_buf *next = NULL;
268 unsigned long flags;
269
270 spin_lock_irqsave(&dev->slock, flags);
271 core_dbg("buffer_queue %p\n", buf);
272 if (NULL == q->curr) {
273 if (!q->need_two) {
274 q->curr = buf;
275 buf->activate(dev, buf, NULL);
276 } else if (list_empty(&q->queue)) {
277 list_add_tail(&buf->entry, &q->queue);
278 } else {
279 next = list_entry(q->queue.next, struct saa7134_buf,
280 entry);
281 q->curr = buf;
282 buf->activate(dev, buf, next);
283 }
284 } else {
285 list_add_tail(&buf->entry, &q->queue);
286 }
287 spin_unlock_irqrestore(&dev->slock, flags);
288 return 0;
289 }
290
saa7134_buffer_finish(struct saa7134_dev * dev,struct saa7134_dmaqueue * q,unsigned int state)291 void saa7134_buffer_finish(struct saa7134_dev *dev,
292 struct saa7134_dmaqueue *q,
293 unsigned int state)
294 {
295 core_dbg("buffer_finish %p\n", q->curr);
296
297 /* finish current buffer */
298 q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
299 q->curr->vb2.sequence = q->seq_nr++;
300 vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
301 q->curr = NULL;
302 }
303
saa7134_buffer_next(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)304 void saa7134_buffer_next(struct saa7134_dev *dev,
305 struct saa7134_dmaqueue *q)
306 {
307 struct saa7134_buf *buf,*next = NULL;
308
309 assert_spin_locked(&dev->slock);
310 BUG_ON(NULL != q->curr);
311
312 if (!list_empty(&q->queue)) {
313 /* activate next one from queue */
314 buf = list_entry(q->queue.next, struct saa7134_buf, entry);
315 core_dbg("buffer_next %p [prev=%p/next=%p]\n",
316 buf, q->queue.prev, q->queue.next);
317 list_del(&buf->entry);
318 if (!list_empty(&q->queue))
319 next = list_entry(q->queue.next, struct saa7134_buf, entry);
320 q->curr = buf;
321 buf->activate(dev, buf, next);
322 core_dbg("buffer_next #2 prev=%p/next=%p\n",
323 q->queue.prev, q->queue.next);
324 } else {
325 /* nothing to do -- just stop DMA */
326 core_dbg("buffer_next %p\n", NULL);
327 saa7134_set_dmabits(dev);
328 del_timer(&q->timeout);
329 }
330 }
331
saa7134_buffer_timeout(struct timer_list * t)332 void saa7134_buffer_timeout(struct timer_list *t)
333 {
334 struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
335 struct saa7134_dev *dev = q->dev;
336 unsigned long flags;
337
338 spin_lock_irqsave(&dev->slock, flags);
339
340 /* try to reset the hardware (SWRST) */
341 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
342 saa_writeb(SAA7134_REGION_ENABLE, 0x80);
343 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
344
345 /* flag current buffer as failed,
346 try to start over with the next one. */
347 if (q->curr) {
348 core_dbg("timeout on %p\n", q->curr);
349 saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
350 }
351 saa7134_buffer_next(dev, q);
352 spin_unlock_irqrestore(&dev->slock, flags);
353 }
354
saa7134_stop_streaming(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)355 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
356 {
357 unsigned long flags;
358 struct list_head *pos, *n;
359 struct saa7134_buf *tmp;
360
361 spin_lock_irqsave(&dev->slock, flags);
362 if (!list_empty(&q->queue)) {
363 list_for_each_safe(pos, n, &q->queue) {
364 tmp = list_entry(pos, struct saa7134_buf, entry);
365 vb2_buffer_done(&tmp->vb2.vb2_buf,
366 VB2_BUF_STATE_ERROR);
367 list_del(pos);
368 tmp = NULL;
369 }
370 }
371 spin_unlock_irqrestore(&dev->slock, flags);
372 saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
373 }
374 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
375
376 /* ------------------------------------------------------------------ */
377
saa7134_set_dmabits(struct saa7134_dev * dev)378 int saa7134_set_dmabits(struct saa7134_dev *dev)
379 {
380 u32 split, task=0, ctrl=0, irq=0;
381 enum v4l2_field cap = V4L2_FIELD_ANY;
382 enum v4l2_field ov = V4L2_FIELD_ANY;
383
384 assert_spin_locked(&dev->slock);
385
386 if (dev->insuspend)
387 return 0;
388
389 /* video capture -- dma 0 + video task A */
390 if (dev->video_q.curr) {
391 task |= 0x01;
392 ctrl |= SAA7134_MAIN_CTRL_TE0;
393 irq |= SAA7134_IRQ1_INTE_RA0_1 |
394 SAA7134_IRQ1_INTE_RA0_0;
395 cap = dev->field;
396 }
397
398 /* video capture -- dma 1+2 (planar modes) */
399 if (dev->video_q.curr && dev->fmt->planar) {
400 ctrl |= SAA7134_MAIN_CTRL_TE4 |
401 SAA7134_MAIN_CTRL_TE5;
402 }
403
404 /* screen overlay -- dma 0 + video task B */
405 if (dev->ovenable) {
406 task |= 0x10;
407 ctrl |= SAA7134_MAIN_CTRL_TE1;
408 ov = dev->ovfield;
409 }
410
411 /* vbi capture -- dma 0 + vbi task A+B */
412 if (dev->vbi_q.curr) {
413 task |= 0x22;
414 ctrl |= SAA7134_MAIN_CTRL_TE2 |
415 SAA7134_MAIN_CTRL_TE3;
416 irq |= SAA7134_IRQ1_INTE_RA0_7 |
417 SAA7134_IRQ1_INTE_RA0_6 |
418 SAA7134_IRQ1_INTE_RA0_5 |
419 SAA7134_IRQ1_INTE_RA0_4;
420 }
421
422 /* audio capture -- dma 3 */
423 if (dev->dmasound.dma_running) {
424 ctrl |= SAA7134_MAIN_CTRL_TE6;
425 irq |= SAA7134_IRQ1_INTE_RA3_1 |
426 SAA7134_IRQ1_INTE_RA3_0;
427 }
428
429 /* TS capture -- dma 5 */
430 if (dev->ts_q.curr) {
431 ctrl |= SAA7134_MAIN_CTRL_TE5;
432 irq |= SAA7134_IRQ1_INTE_RA2_1 |
433 SAA7134_IRQ1_INTE_RA2_0;
434 }
435
436 /* set task conditions + field handling */
437 if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
438 /* default config -- use full frames */
439 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
440 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
441 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02);
442 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02);
443 split = 0;
444 } else {
445 /* split fields between tasks */
446 if (V4L2_FIELD_TOP == cap) {
447 /* odd A, even B, repeat */
448 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
449 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
450 } else {
451 /* odd B, even A, repeat */
452 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
453 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
454 }
455 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01);
456 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01);
457 split = 1;
458 }
459
460 /* irqs */
461 saa_writeb(SAA7134_REGION_ENABLE, task);
462 saa_writel(SAA7134_IRQ1, irq);
463 saa_andorl(SAA7134_MAIN_CTRL,
464 SAA7134_MAIN_CTRL_TE0 |
465 SAA7134_MAIN_CTRL_TE1 |
466 SAA7134_MAIN_CTRL_TE2 |
467 SAA7134_MAIN_CTRL_TE3 |
468 SAA7134_MAIN_CTRL_TE4 |
469 SAA7134_MAIN_CTRL_TE5 |
470 SAA7134_MAIN_CTRL_TE6,
471 ctrl);
472 core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
473 task, ctrl, irq, split ? "no" : "yes");
474
475 return 0;
476 }
477
478 /* ------------------------------------------------------------------ */
479 /* IRQ handler + helpers */
480
481 static char *irqbits[] = {
482 "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
483 "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
484 "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
485 "GPIO16", "GPIO18", "GPIO22", "GPIO23"
486 };
487 #define IRQBITS ARRAY_SIZE(irqbits)
488
print_irqstatus(struct saa7134_dev * dev,int loop,unsigned long report,unsigned long status)489 static void print_irqstatus(struct saa7134_dev *dev, int loop,
490 unsigned long report, unsigned long status)
491 {
492 unsigned int i;
493
494 irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
495 loop, jiffies, report, status);
496 for (i = 0; i < IRQBITS; i++) {
497 if (!(report & (1 << i)))
498 continue;
499 pr_cont(" %s", irqbits[i]);
500 }
501 if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
502 pr_cont(" | RA0=%s,%s,%s,%ld",
503 (status & 0x40) ? "vbi" : "video",
504 (status & 0x20) ? "b" : "a",
505 (status & 0x10) ? "odd" : "even",
506 (status & 0x0f));
507 }
508 pr_cont("\n");
509 }
510
saa7134_irq(int irq,void * dev_id)511 static irqreturn_t saa7134_irq(int irq, void *dev_id)
512 {
513 struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
514 unsigned long report,status;
515 int loop, handled = 0;
516
517 if (dev->insuspend)
518 goto out;
519
520 for (loop = 0; loop < 10; loop++) {
521 report = saa_readl(SAA7134_IRQ_REPORT);
522 status = saa_readl(SAA7134_IRQ_STATUS);
523
524 /* If dmasound support is active and we get a sound report,
525 * mask out the report and let the saa7134-alsa module deal
526 * with it */
527 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
528 (dev->dmasound.priv_data != NULL) )
529 {
530 irq_dbg(2, "preserving DMA sound interrupt\n");
531 report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
532 }
533
534 if (0 == report) {
535 irq_dbg(2, "no (more) work\n");
536 goto out;
537 }
538
539 handled = 1;
540 saa_writel(SAA7134_IRQ_REPORT,report);
541 if (irq_debug)
542 print_irqstatus(dev,loop,report,status);
543
544
545 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
546 (report & SAA7134_IRQ_REPORT_INTL))
547 saa7134_irq_video_signalchange(dev);
548
549
550 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
551 (status & 0x60) == 0)
552 saa7134_irq_video_done(dev,status);
553
554 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
555 (status & 0x40) == 0x40)
556 saa7134_irq_vbi_done(dev,status);
557
558 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
559 card_has_mpeg(dev)) {
560 if (dev->mops->irq_ts_done != NULL)
561 dev->mops->irq_ts_done(dev, status);
562 else
563 saa7134_irq_ts_done(dev, status);
564 }
565
566 if (report & SAA7134_IRQ_REPORT_GPIO16) {
567 switch (dev->has_remote) {
568 case SAA7134_REMOTE_GPIO:
569 if (!dev->remote)
570 break;
571 if (dev->remote->mask_keydown & 0x10000) {
572 saa7134_input_irq(dev);
573 }
574 break;
575
576 case SAA7134_REMOTE_I2C:
577 break; /* FIXME: invoke I2C get_key() */
578
579 default: /* GPIO16 not used by IR remote */
580 break;
581 }
582 }
583
584 if (report & SAA7134_IRQ_REPORT_GPIO18) {
585 switch (dev->has_remote) {
586 case SAA7134_REMOTE_GPIO:
587 if (!dev->remote)
588 break;
589 if ((dev->remote->mask_keydown & 0x40000) ||
590 (dev->remote->mask_keyup & 0x40000)) {
591 saa7134_input_irq(dev);
592 }
593 break;
594
595 case SAA7134_REMOTE_I2C:
596 break; /* FIXME: invoke I2C get_key() */
597
598 default: /* GPIO18 not used by IR remote */
599 break;
600 }
601 }
602 }
603
604 if (10 == loop) {
605 print_irqstatus(dev,loop,report,status);
606 if (report & SAA7134_IRQ_REPORT_PE) {
607 /* disable all parity error */
608 pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
609 dev->name);
610 saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
611 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
612 /* disable gpio16 IRQ */
613 pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
614 dev->name);
615 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
616 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
617 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
618 /* disable gpio18 IRQs */
619 pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
620 dev->name);
621 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
622 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
623 } else {
624 /* disable all irqs */
625 pr_warn("%s/irq: looping -- clearing all enable bits\n",
626 dev->name);
627 saa_writel(SAA7134_IRQ1,0);
628 saa_writel(SAA7134_IRQ2,0);
629 }
630 }
631
632 out:
633 return IRQ_RETVAL(handled);
634 }
635
636 /* ------------------------------------------------------------------ */
637
638 /* early init (no i2c, no irq) */
639
saa7134_hw_enable1(struct saa7134_dev * dev)640 static int saa7134_hw_enable1(struct saa7134_dev *dev)
641 {
642 /* RAM FIFO config */
643 saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
644 saa_writel(SAA7134_THRESHOULD, 0x02020202);
645
646 /* enable audio + video processing */
647 saa_writel(SAA7134_MAIN_CTRL,
648 SAA7134_MAIN_CTRL_VPLLE |
649 SAA7134_MAIN_CTRL_APLLE |
650 SAA7134_MAIN_CTRL_EXOSC |
651 SAA7134_MAIN_CTRL_EVFE1 |
652 SAA7134_MAIN_CTRL_EVFE2 |
653 SAA7134_MAIN_CTRL_ESFE |
654 SAA7134_MAIN_CTRL_EBDAC);
655
656 /*
657 * Initialize OSS _after_ enabling audio clock PLL and audio processing.
658 * OSS initialization writes to registers via the audio DSP; these
659 * writes will fail unless the audio clock has been started. At worst,
660 * audio will not work.
661 */
662
663 /* enable peripheral devices */
664 saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
665
666 /* set vertical line numbering start (vbi needs this) */
667 saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
668
669 return 0;
670 }
671
saa7134_hwinit1(struct saa7134_dev * dev)672 static int saa7134_hwinit1(struct saa7134_dev *dev)
673 {
674 core_dbg("hwinit1\n");
675
676 saa_writel(SAA7134_IRQ1, 0);
677 saa_writel(SAA7134_IRQ2, 0);
678
679 /* Clear any stale IRQ reports */
680 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
681
682 mutex_init(&dev->lock);
683 spin_lock_init(&dev->slock);
684
685 saa7134_track_gpio(dev,"pre-init");
686 saa7134_video_init1(dev);
687 saa7134_vbi_init1(dev);
688 if (card_has_mpeg(dev))
689 saa7134_ts_init1(dev);
690 saa7134_input_init1(dev);
691
692 saa7134_hw_enable1(dev);
693
694 return 0;
695 }
696
697 /* late init (with i2c + irq) */
saa7134_hw_enable2(struct saa7134_dev * dev)698 static int saa7134_hw_enable2(struct saa7134_dev *dev)
699 {
700
701 unsigned int irq2_mask;
702
703 /* enable IRQ's */
704 irq2_mask =
705 SAA7134_IRQ2_INTE_DEC3 |
706 SAA7134_IRQ2_INTE_DEC2 |
707 SAA7134_IRQ2_INTE_DEC1 |
708 SAA7134_IRQ2_INTE_DEC0 |
709 SAA7134_IRQ2_INTE_PE |
710 SAA7134_IRQ2_INTE_AR;
711
712 if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
713 if (dev->remote->mask_keydown & 0x10000)
714 irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
715 else { /* Allow enabling both IRQ edge triggers */
716 if (dev->remote->mask_keydown & 0x40000)
717 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
718 if (dev->remote->mask_keyup & 0x40000)
719 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
720 }
721 }
722
723 if (dev->has_remote == SAA7134_REMOTE_I2C) {
724 request_module("ir-kbd-i2c");
725 }
726
727 saa_writel(SAA7134_IRQ1, 0);
728 saa_writel(SAA7134_IRQ2, irq2_mask);
729
730 return 0;
731 }
732
saa7134_hwinit2(struct saa7134_dev * dev)733 static int saa7134_hwinit2(struct saa7134_dev *dev)
734 {
735
736 core_dbg("hwinit2\n");
737
738 saa7134_video_init2(dev);
739 saa7134_tvaudio_init2(dev);
740
741 saa7134_hw_enable2(dev);
742
743 return 0;
744 }
745
746
747 /* shutdown */
saa7134_hwfini(struct saa7134_dev * dev)748 static int saa7134_hwfini(struct saa7134_dev *dev)
749 {
750 core_dbg("hwfini\n");
751
752 if (card_has_mpeg(dev))
753 saa7134_ts_fini(dev);
754 saa7134_input_fini(dev);
755 saa7134_vbi_fini(dev);
756 saa7134_tvaudio_fini(dev);
757 saa7134_video_fini(dev);
758 return 0;
759 }
760
must_configure_manually(int has_eeprom)761 static void must_configure_manually(int has_eeprom)
762 {
763 unsigned int i,p;
764
765 if (!has_eeprom)
766 pr_warn("saa7134: <rant>\n"
767 "saa7134: Congratulations! Your TV card vendor saved a few\n"
768 "saa7134: cents for a eeprom, thus your pci board has no\n"
769 "saa7134: subsystem ID and I can't identify it automatically\n"
770 "saa7134: </rant>\n"
771 "saa7134: I feel better now. Ok, here are the good news:\n"
772 "saa7134: You can use the card=<nr> insmod option to specify\n"
773 "saa7134: which board do you have. The list:\n");
774 else
775 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
776 "saa7134: insmod option to specify which board do you have, but this is\n"
777 "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
778 "saa7134: for support at linux-media@vger.kernel.org.\n"
779 "saa7134: The supported cards are:\n");
780
781 for (i = 0; i < saa7134_bcount; i++) {
782 pr_warn("saa7134: card=%d -> %-40.40s",
783 i,saa7134_boards[i].name);
784 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
785 if (saa7134_pci_tbl[p].driver_data != i)
786 continue;
787 pr_cont(" %04x:%04x",
788 saa7134_pci_tbl[p].subvendor,
789 saa7134_pci_tbl[p].subdevice);
790 }
791 pr_cont("\n");
792 }
793 }
794
saa7134_unregister_media_device(struct saa7134_dev * dev)795 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
796 {
797
798 #ifdef CONFIG_MEDIA_CONTROLLER
799 if (!dev->media_dev)
800 return;
801 media_device_unregister(dev->media_dev);
802 media_device_cleanup(dev->media_dev);
803 kfree(dev->media_dev);
804 dev->media_dev = NULL;
805 #endif
806 }
807
saa7134_media_release(struct saa7134_dev * dev)808 static void saa7134_media_release(struct saa7134_dev *dev)
809 {
810 #ifdef CONFIG_MEDIA_CONTROLLER
811 int i;
812
813 for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
814 media_device_unregister_entity(&dev->input_ent[i]);
815 #endif
816 }
817
818 #if defined(CONFIG_MEDIA_CONTROLLER)
saa7134_create_entities(struct saa7134_dev * dev)819 static void saa7134_create_entities(struct saa7134_dev *dev)
820 {
821 int ret, i;
822 struct media_entity *entity;
823 struct media_entity *decoder = NULL;
824
825 /* Check if it is using an external analog TV demod */
826 media_device_for_each_entity(entity, dev->media_dev) {
827 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
828 decoder = entity;
829 break;
830 }
831 }
832
833 /*
834 * saa713x is not using an external ATV demod.
835 * Register the internal one
836 */
837 if (!decoder) {
838 dev->demod.name = "saa713x";
839 dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
840 dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
841 dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
842 dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
843 dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
844
845 ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
846 dev->demod_pad);
847 if (ret < 0)
848 pr_err("failed to initialize demod pad!\n");
849
850 ret = media_device_register_entity(dev->media_dev, &dev->demod);
851 if (ret < 0)
852 pr_err("failed to register demod entity!\n");
853
854 dev->decoder = &dev->demod;
855 } else {
856 dev->decoder = decoder;
857 }
858
859 /* Initialize Video, VBI and Radio pads */
860 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
861 ret = media_entity_pads_init(&dev->video_dev->entity, 1,
862 &dev->video_pad);
863 if (ret < 0)
864 pr_err("failed to initialize video media entity!\n");
865
866 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
867 ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
868 &dev->vbi_pad);
869 if (ret < 0)
870 pr_err("failed to initialize vbi media entity!\n");
871
872 /* Create entities for each input connector */
873 for (i = 0; i < SAA7134_INPUT_MAX; i++) {
874 struct media_entity *ent = &dev->input_ent[i];
875 struct saa7134_input *in = &card_in(dev, i);
876
877 if (in->type == SAA7134_NO_INPUT)
878 break;
879
880 /* This input uses the S-Video connector */
881 if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
882 continue;
883
884 ent->name = saa7134_input_name[in->type];
885 ent->flags = MEDIA_ENT_FL_CONNECTOR;
886 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
887
888 switch (in->type) {
889 case SAA7134_INPUT_COMPOSITE:
890 case SAA7134_INPUT_COMPOSITE0:
891 case SAA7134_INPUT_COMPOSITE1:
892 case SAA7134_INPUT_COMPOSITE2:
893 case SAA7134_INPUT_COMPOSITE3:
894 case SAA7134_INPUT_COMPOSITE4:
895 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
896 break;
897 case SAA7134_INPUT_SVIDEO:
898 case SAA7134_INPUT_SVIDEO0:
899 case SAA7134_INPUT_SVIDEO1:
900 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
901 break;
902 default:
903 /*
904 * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
905 *
906 * Please notice that neither SAA7134_INPUT_MUTE or
907 * SAA7134_INPUT_RADIO are defined at
908 * saa7134_board.input.
909 */
910 ent->function = MEDIA_ENT_F_CONN_RF;
911 break;
912 }
913
914 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
915 if (ret < 0)
916 pr_err("failed to initialize input pad[%d]!\n", i);
917
918 ret = media_device_register_entity(dev->media_dev, ent);
919 if (ret < 0)
920 pr_err("failed to register input entity %d!\n", i);
921 }
922
923 /* Create input for Radio RF connector */
924 if (card_has_radio(dev)) {
925 struct saa7134_input *in = &saa7134_boards[dev->board].radio;
926 struct media_entity *ent = &dev->input_ent[i];
927
928 ent->name = saa7134_input_name[in->type];
929 ent->flags = MEDIA_ENT_FL_CONNECTOR;
930 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
931 ent->function = MEDIA_ENT_F_CONN_RF;
932
933 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
934 if (ret < 0)
935 pr_err("failed to initialize input pad[%d]!\n", i);
936
937 ret = media_device_register_entity(dev->media_dev, ent);
938 if (ret < 0)
939 pr_err("failed to register input entity %d!\n", i);
940 }
941 }
942 #endif
943
vdev_init(struct saa7134_dev * dev,struct video_device * template,char * type)944 static struct video_device *vdev_init(struct saa7134_dev *dev,
945 struct video_device *template,
946 char *type)
947 {
948 struct video_device *vfd;
949
950 vfd = video_device_alloc();
951 if (NULL == vfd)
952 return NULL;
953 *vfd = *template;
954 vfd->v4l2_dev = &dev->v4l2_dev;
955 vfd->release = video_device_release;
956 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
957 dev->name, type, saa7134_boards[dev->board].name);
958 video_set_drvdata(vfd, dev);
959 return vfd;
960 }
961
saa7134_unregister_video(struct saa7134_dev * dev)962 static void saa7134_unregister_video(struct saa7134_dev *dev)
963 {
964 saa7134_media_release(dev);
965
966 if (dev->video_dev) {
967 if (video_is_registered(dev->video_dev))
968 video_unregister_device(dev->video_dev);
969 else
970 video_device_release(dev->video_dev);
971 dev->video_dev = NULL;
972 }
973 if (dev->vbi_dev) {
974 if (video_is_registered(dev->vbi_dev))
975 video_unregister_device(dev->vbi_dev);
976 else
977 video_device_release(dev->vbi_dev);
978 dev->vbi_dev = NULL;
979 }
980 if (dev->radio_dev) {
981 if (video_is_registered(dev->radio_dev))
982 video_unregister_device(dev->radio_dev);
983 else
984 video_device_release(dev->radio_dev);
985 dev->radio_dev = NULL;
986 }
987 }
988
mpeg_ops_attach(struct saa7134_mpeg_ops * ops,struct saa7134_dev * dev)989 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
990 struct saa7134_dev *dev)
991 {
992 int err;
993
994 if (NULL != dev->mops)
995 return;
996 if (saa7134_boards[dev->board].mpeg != ops->type)
997 return;
998 err = ops->init(dev);
999 if (0 != err)
1000 return;
1001 dev->mops = ops;
1002 }
1003
mpeg_ops_detach(struct saa7134_mpeg_ops * ops,struct saa7134_dev * dev)1004 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1005 struct saa7134_dev *dev)
1006 {
1007 if (NULL == dev->mops)
1008 return;
1009 if (dev->mops != ops)
1010 return;
1011 dev->mops->fini(dev);
1012 dev->mops = NULL;
1013 }
1014
saa7134_initdev(struct pci_dev * pci_dev,const struct pci_device_id * pci_id)1015 static int saa7134_initdev(struct pci_dev *pci_dev,
1016 const struct pci_device_id *pci_id)
1017 {
1018 struct saa7134_dev *dev;
1019 struct saa7134_mpeg_ops *mops;
1020 int err;
1021
1022 if (saa7134_devcount == SAA7134_MAXBOARDS)
1023 return -ENOMEM;
1024
1025 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1026 if (NULL == dev)
1027 return -ENOMEM;
1028
1029 dev->nr = saa7134_devcount;
1030 sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1031
1032 #ifdef CONFIG_MEDIA_CONTROLLER
1033 dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1034 if (!dev->media_dev) {
1035 err = -ENOMEM;
1036 goto fail0;
1037 }
1038 media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1039 dev->v4l2_dev.mdev = dev->media_dev;
1040 #endif
1041
1042 err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1043 if (err)
1044 goto fail0;
1045
1046 /* pci init */
1047 dev->pci = pci_dev;
1048 if (pci_enable_device(pci_dev)) {
1049 err = -EIO;
1050 goto fail1;
1051 }
1052
1053 /* pci quirks */
1054 if (pci_pci_problems) {
1055 if (pci_pci_problems & PCIPCI_TRITON)
1056 pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1057 if (pci_pci_problems & PCIPCI_NATOMA)
1058 pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1059 if (pci_pci_problems & PCIPCI_VIAETBF)
1060 pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1061 if (pci_pci_problems & PCIPCI_VSFX)
1062 pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1063 #ifdef PCIPCI_ALIMAGIK
1064 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1065 pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1066 dev->name);
1067 latency = 0x0A;
1068 }
1069 #endif
1070 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1071 pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1072 dev->name);
1073 if (!saa7134_no_overlay) {
1074 pr_info("%s: quirk: overlay mode will be disabled.\n",
1075 dev->name);
1076 saa7134_no_overlay = 1;
1077 } else {
1078 pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1079 dev->name);
1080 }
1081 }
1082 }
1083 if (UNSET != latency) {
1084 pr_info("%s: setting pci latency timer to %d\n",
1085 dev->name,latency);
1086 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1087 }
1088
1089 /* print pci info */
1090 dev->pci_rev = pci_dev->revision;
1091 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
1092 pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1093 dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1094 dev->pci_lat,
1095 (unsigned long long)pci_resource_start(pci_dev, 0));
1096 pci_set_master(pci_dev);
1097 err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1098 if (err) {
1099 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1100 goto fail1;
1101 }
1102
1103 /* board config */
1104 dev->board = pci_id->driver_data;
1105 if ((unsigned)card[dev->nr] < saa7134_bcount)
1106 dev->board = card[dev->nr];
1107 if (SAA7134_BOARD_UNKNOWN == dev->board)
1108 must_configure_manually(0);
1109 else if (SAA7134_BOARD_NOAUTO == dev->board) {
1110 must_configure_manually(1);
1111 dev->board = SAA7134_BOARD_UNKNOWN;
1112 }
1113 dev->autodetected = card[dev->nr] != dev->board;
1114 dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1115 dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1116 dev->radio_type = saa7134_boards[dev->board].radio_type;
1117 dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1118 dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1119 if (UNSET != tuner[dev->nr])
1120 dev->tuner_type = tuner[dev->nr];
1121 pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1122 dev->name,pci_dev->subsystem_vendor,
1123 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1124 dev->board, dev->autodetected ?
1125 "autodetected" : "insmod option");
1126
1127 /* get mmio */
1128 if (!request_mem_region(pci_resource_start(pci_dev,0),
1129 pci_resource_len(pci_dev,0),
1130 dev->name)) {
1131 err = -EBUSY;
1132 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1133 dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1134 goto fail1;
1135 }
1136 dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1137 pci_resource_len(pci_dev, 0));
1138 dev->bmmio = (__u8 __iomem *)dev->lmmio;
1139 if (NULL == dev->lmmio) {
1140 err = -EIO;
1141 pr_err("%s: can't ioremap() MMIO memory\n",
1142 dev->name);
1143 goto fail2;
1144 }
1145
1146 /* initialize hardware #1 */
1147 saa7134_board_init1(dev);
1148 saa7134_hwinit1(dev);
1149
1150 /* get irq */
1151 err = request_irq(pci_dev->irq, saa7134_irq,
1152 IRQF_SHARED, dev->name, dev);
1153 if (err < 0) {
1154 pr_err("%s: can't get IRQ %d\n",
1155 dev->name,pci_dev->irq);
1156 goto fail3;
1157 }
1158
1159 /* wait a bit, register i2c bus */
1160 msleep(100);
1161 saa7134_i2c_register(dev);
1162 saa7134_board_init2(dev);
1163
1164 saa7134_hwinit2(dev);
1165
1166 /* load i2c helpers */
1167 if (card_is_empress(dev)) {
1168 dev->empress_sd =
1169 v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1170 "saa6752hs",
1171 saa7134_boards[dev->board].empress_addr, NULL);
1172
1173 if (dev->empress_sd)
1174 dev->empress_sd->grp_id = GRP_EMPRESS;
1175 }
1176
1177 if (saa7134_boards[dev->board].rds_addr) {
1178 struct v4l2_subdev *sd;
1179
1180 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1181 &dev->i2c_adap, "saa6588",
1182 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1183 if (sd) {
1184 pr_info("%s: found RDS decoder\n", dev->name);
1185 dev->has_rds = 1;
1186 }
1187 }
1188
1189 mutex_lock(&saa7134_devlist_lock);
1190 list_for_each_entry(mops, &mops_list, next)
1191 mpeg_ops_attach(mops, dev);
1192 list_add_tail(&dev->devlist, &saa7134_devlist);
1193 mutex_unlock(&saa7134_devlist_lock);
1194
1195 /* check for signal */
1196 saa7134_irq_video_signalchange(dev);
1197
1198 if (TUNER_ABSENT != dev->tuner_type)
1199 saa_call_all(dev, core, s_power, 0);
1200
1201 /* register v4l devices */
1202 if (saa7134_no_overlay > 0)
1203 pr_info("%s: Overlay support disabled.\n", dev->name);
1204
1205 dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1206 dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1207 dev->video_dev->lock = &dev->lock;
1208 dev->video_dev->queue = &dev->video_vbq;
1209 dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1210 V4L2_CAP_VIDEO_CAPTURE;
1211 if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1212 dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1213
1214 if (saa7134_no_overlay <= 0)
1215 dev->video_dev->device_caps |= V4L2_CAP_VIDEO_OVERLAY;
1216
1217 err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
1218 video_nr[dev->nr]);
1219 if (err < 0) {
1220 pr_info("%s: can't register video device\n",
1221 dev->name);
1222 goto fail4;
1223 }
1224 pr_info("%s: registered device %s [v4l2]\n",
1225 dev->name, video_device_node_name(dev->video_dev));
1226
1227 dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1228 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1229 dev->vbi_dev->lock = &dev->lock;
1230 dev->vbi_dev->queue = &dev->vbi_vbq;
1231 dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1232 V4L2_CAP_VBI_CAPTURE;
1233 if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1234 dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1235
1236 err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1237 vbi_nr[dev->nr]);
1238 if (err < 0)
1239 goto fail4;
1240 pr_info("%s: registered device %s\n",
1241 dev->name, video_device_node_name(dev->vbi_dev));
1242
1243 if (card_has_radio(dev)) {
1244 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1245 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1246 dev->radio_dev->lock = &dev->lock;
1247 dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1248 if (dev->has_rds)
1249 dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1250 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1251 radio_nr[dev->nr]);
1252 if (err < 0)
1253 goto fail4;
1254 pr_info("%s: registered device %s\n",
1255 dev->name, video_device_node_name(dev->radio_dev));
1256 }
1257
1258 #ifdef CONFIG_MEDIA_CONTROLLER
1259 saa7134_create_entities(dev);
1260
1261 err = v4l2_mc_create_media_graph(dev->media_dev);
1262 if (err) {
1263 pr_err("failed to create media graph\n");
1264 goto fail4;
1265 }
1266 #endif
1267 /* everything worked */
1268 saa7134_devcount++;
1269
1270 if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1271 saa7134_dmasound_init(dev);
1272
1273 request_submodules(dev);
1274
1275 /*
1276 * Do it at the end, to reduce dynamic configuration changes during
1277 * the device init. Yet, as request_modules() can be async, the
1278 * topology will likely change after load the saa7134 subdrivers.
1279 */
1280 #ifdef CONFIG_MEDIA_CONTROLLER
1281 err = media_device_register(dev->media_dev);
1282 if (err)
1283 goto fail4;
1284 #endif
1285
1286 return 0;
1287
1288 fail4:
1289 saa7134_unregister_video(dev);
1290 saa7134_i2c_unregister(dev);
1291 free_irq(pci_dev->irq, dev);
1292 fail3:
1293 saa7134_hwfini(dev);
1294 iounmap(dev->lmmio);
1295 fail2:
1296 release_mem_region(pci_resource_start(pci_dev,0),
1297 pci_resource_len(pci_dev,0));
1298 fail1:
1299 v4l2_device_unregister(&dev->v4l2_dev);
1300 fail0:
1301 #ifdef CONFIG_MEDIA_CONTROLLER
1302 kfree(dev->media_dev);
1303 #endif
1304 kfree(dev);
1305 return err;
1306 }
1307
saa7134_finidev(struct pci_dev * pci_dev)1308 static void saa7134_finidev(struct pci_dev *pci_dev)
1309 {
1310 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1311 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1312 struct saa7134_mpeg_ops *mops;
1313
1314 flush_request_submodules(dev);
1315
1316 /* Release DMA sound modules if present */
1317 if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1318 saa7134_dmasound_exit(dev);
1319 }
1320
1321 /* debugging ... */
1322 if (irq_debug) {
1323 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1324 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1325 print_irqstatus(dev,42,report,status);
1326 }
1327
1328 /* disable peripheral devices */
1329 saa_writeb(SAA7134_SPECIAL_MODE,0);
1330
1331 /* shutdown hardware */
1332 saa_writel(SAA7134_IRQ1,0);
1333 saa_writel(SAA7134_IRQ2,0);
1334 saa_writel(SAA7134_MAIN_CTRL,0);
1335
1336 /* shutdown subsystems */
1337 saa7134_hwfini(dev);
1338
1339 /* unregister */
1340 mutex_lock(&saa7134_devlist_lock);
1341 list_del(&dev->devlist);
1342 list_for_each_entry(mops, &mops_list, next)
1343 mpeg_ops_detach(mops, dev);
1344 mutex_unlock(&saa7134_devlist_lock);
1345 saa7134_devcount--;
1346
1347 saa7134_i2c_unregister(dev);
1348 saa7134_unregister_video(dev);
1349
1350
1351 /* the DMA sound modules should be unloaded before reaching
1352 this, but just in case they are still present... */
1353 if (dev->dmasound.priv_data != NULL) {
1354 free_irq(pci_dev->irq, &dev->dmasound);
1355 dev->dmasound.priv_data = NULL;
1356 }
1357
1358
1359 /* release resources */
1360 free_irq(pci_dev->irq, dev);
1361 iounmap(dev->lmmio);
1362 release_mem_region(pci_resource_start(pci_dev,0),
1363 pci_resource_len(pci_dev,0));
1364
1365 v4l2_device_unregister(&dev->v4l2_dev);
1366
1367 saa7134_unregister_media_device(dev);
1368
1369 /* free memory */
1370 kfree(dev);
1371 }
1372
1373 #ifdef CONFIG_PM
1374
1375 /* resends a current buffer in queue after resume */
saa7134_buffer_requeue(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)1376 static int saa7134_buffer_requeue(struct saa7134_dev *dev,
1377 struct saa7134_dmaqueue *q)
1378 {
1379 struct saa7134_buf *buf, *next;
1380
1381 assert_spin_locked(&dev->slock);
1382
1383 buf = q->curr;
1384 next = buf;
1385 core_dbg("buffer_requeue\n");
1386
1387 if (!buf)
1388 return 0;
1389
1390 core_dbg("buffer_requeue : resending active buffer\n");
1391
1392 if (!list_empty(&q->queue))
1393 next = list_entry(q->queue.next, struct saa7134_buf,
1394 entry);
1395 buf->activate(dev, buf, next);
1396
1397 return 0;
1398 }
1399
saa7134_suspend(struct pci_dev * pci_dev,pm_message_t state)1400 static int saa7134_suspend(struct pci_dev *pci_dev , pm_message_t state)
1401 {
1402 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1403 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1404
1405 /* disable overlay - apps should enable it explicitly on resume*/
1406 dev->ovenable = 0;
1407
1408 /* Disable interrupts, DMA, and rest of the chip*/
1409 saa_writel(SAA7134_IRQ1, 0);
1410 saa_writel(SAA7134_IRQ2, 0);
1411 saa_writel(SAA7134_MAIN_CTRL, 0);
1412
1413 dev->insuspend = 1;
1414 synchronize_irq(pci_dev->irq);
1415
1416 /* ACK interrupts once more, just in case,
1417 since the IRQ handler won't ack them anymore*/
1418
1419 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1420
1421 /* Disable timeout timers - if we have active buffers, we will
1422 fill them on resume*/
1423
1424 del_timer(&dev->video_q.timeout);
1425 del_timer(&dev->vbi_q.timeout);
1426 del_timer(&dev->ts_q.timeout);
1427
1428 if (dev->remote && dev->remote->dev->users)
1429 saa7134_ir_close(dev->remote->dev);
1430
1431 pci_save_state(pci_dev);
1432 pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
1433
1434 return 0;
1435 }
1436
saa7134_resume(struct pci_dev * pci_dev)1437 static int saa7134_resume(struct pci_dev *pci_dev)
1438 {
1439 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1440 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1441 unsigned long flags;
1442
1443 pci_set_power_state(pci_dev, PCI_D0);
1444 pci_restore_state(pci_dev);
1445
1446 /* Do things that are done in saa7134_initdev ,
1447 except of initializing memory structures.*/
1448
1449 saa7134_board_init1(dev);
1450
1451 /* saa7134_hwinit1 */
1452 if (saa7134_boards[dev->board].video_out)
1453 saa7134_videoport_init(dev);
1454 if (card_has_mpeg(dev))
1455 saa7134_ts_init_hw(dev);
1456 if (dev->remote && dev->remote->dev->users)
1457 saa7134_ir_open(dev->remote->dev);
1458 saa7134_hw_enable1(dev);
1459
1460 msleep(100);
1461
1462 saa7134_board_init2(dev);
1463
1464 /*saa7134_hwinit2*/
1465 saa7134_set_tvnorm_hw(dev);
1466 saa7134_tvaudio_setmute(dev);
1467 saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1468 saa7134_tvaudio_init(dev);
1469 saa7134_enable_i2s(dev);
1470 saa7134_hw_enable2(dev);
1471
1472 saa7134_irq_video_signalchange(dev);
1473
1474 /*resume unfinished buffer(s)*/
1475 spin_lock_irqsave(&dev->slock, flags);
1476 saa7134_buffer_requeue(dev, &dev->video_q);
1477 saa7134_buffer_requeue(dev, &dev->vbi_q);
1478 saa7134_buffer_requeue(dev, &dev->ts_q);
1479
1480 /* FIXME: Disable DMA audio sound - temporary till proper support
1481 is implemented*/
1482
1483 dev->dmasound.dma_running = 0;
1484
1485 /* start DMA now*/
1486 dev->insuspend = 0;
1487 smp_wmb();
1488 saa7134_set_dmabits(dev);
1489 spin_unlock_irqrestore(&dev->slock, flags);
1490
1491 return 0;
1492 }
1493 #endif
1494
1495 /* ----------------------------------------------------------- */
1496
saa7134_ts_register(struct saa7134_mpeg_ops * ops)1497 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1498 {
1499 struct saa7134_dev *dev;
1500
1501 mutex_lock(&saa7134_devlist_lock);
1502 list_for_each_entry(dev, &saa7134_devlist, devlist)
1503 mpeg_ops_attach(ops, dev);
1504 list_add_tail(&ops->next,&mops_list);
1505 mutex_unlock(&saa7134_devlist_lock);
1506 return 0;
1507 }
1508
saa7134_ts_unregister(struct saa7134_mpeg_ops * ops)1509 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1510 {
1511 struct saa7134_dev *dev;
1512
1513 mutex_lock(&saa7134_devlist_lock);
1514 list_del(&ops->next);
1515 list_for_each_entry(dev, &saa7134_devlist, devlist)
1516 mpeg_ops_detach(ops, dev);
1517 mutex_unlock(&saa7134_devlist_lock);
1518 }
1519
1520 EXPORT_SYMBOL(saa7134_ts_register);
1521 EXPORT_SYMBOL(saa7134_ts_unregister);
1522
1523 /* ----------------------------------------------------------- */
1524
1525 static struct pci_driver saa7134_pci_driver = {
1526 .name = "saa7134",
1527 .id_table = saa7134_pci_tbl,
1528 .probe = saa7134_initdev,
1529 .remove = saa7134_finidev,
1530 #ifdef CONFIG_PM
1531 .suspend = saa7134_suspend,
1532 .resume = saa7134_resume
1533 #endif
1534 };
1535
saa7134_init(void)1536 static int __init saa7134_init(void)
1537 {
1538 INIT_LIST_HEAD(&saa7134_devlist);
1539 pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1540 SAA7134_VERSION);
1541 return pci_register_driver(&saa7134_pci_driver);
1542 }
1543
saa7134_fini(void)1544 static void __exit saa7134_fini(void)
1545 {
1546 pci_unregister_driver(&saa7134_pci_driver);
1547 }
1548
1549 module_init(saa7134_init);
1550 module_exit(saa7134_fini);
1551
1552 /* ----------------------------------------------------------- */
1553
1554 EXPORT_SYMBOL(saa7134_set_gpio);
1555 EXPORT_SYMBOL(saa7134_boards);
1556
1557 /* ----------------- for the DMA sound modules --------------- */
1558
1559 EXPORT_SYMBOL(saa7134_dmasound_init);
1560 EXPORT_SYMBOL(saa7134_dmasound_exit);
1561 EXPORT_SYMBOL(saa7134_pgtable_free);
1562 EXPORT_SYMBOL(saa7134_pgtable_build);
1563 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1564 EXPORT_SYMBOL(saa7134_set_dmabits);
1565
