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 bool saa7134_userptr;
55 module_param(saa7134_userptr, bool, 0644);
56 MODULE_PARM_DESC(saa7134_userptr, "enable page-aligned userptr support");
57
58 static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
59 static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
60 static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
61 static unsigned int tuner[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
62 static unsigned int card[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
63
64
65 module_param_array(video_nr, int, NULL, 0444);
66 module_param_array(vbi_nr, int, NULL, 0444);
67 module_param_array(radio_nr, int, NULL, 0444);
68 module_param_array(tuner, int, NULL, 0444);
69 module_param_array(card, int, NULL, 0444);
70
71 MODULE_PARM_DESC(video_nr, "video device number");
72 MODULE_PARM_DESC(vbi_nr, "vbi device number");
73 MODULE_PARM_DESC(radio_nr, "radio device number");
74 MODULE_PARM_DESC(tuner, "tuner type");
75 MODULE_PARM_DESC(card, "card type");
76
77 DEFINE_MUTEX(saa7134_devlist_lock);
78 EXPORT_SYMBOL(saa7134_devlist_lock);
79 LIST_HEAD(saa7134_devlist);
80 EXPORT_SYMBOL(saa7134_devlist);
81 static LIST_HEAD(mops_list);
82 static unsigned int saa7134_devcount;
83
84 int (*saa7134_dmasound_init)(struct saa7134_dev *dev);
85 int (*saa7134_dmasound_exit)(struct saa7134_dev *dev);
86
87 #define core_dbg(fmt, arg...) do { \
88 if (core_debug) \
89 printk(KERN_DEBUG pr_fmt("core: " fmt), ## arg); \
90 } while (0)
91
92 #define irq_dbg(level, fmt, arg...) do {\
93 if (irq_debug > level) \
94 printk(KERN_DEBUG pr_fmt("irq: " fmt), ## arg); \
95 } while (0)
96
saa7134_track_gpio(struct saa7134_dev * dev,const char * msg)97 void saa7134_track_gpio(struct saa7134_dev *dev, const char *msg)
98 {
99 unsigned long mode,status;
100
101 if (!gpio_tracking)
102 return;
103 /* rising SAA7134_GPIO_GPRESCAN reads the status */
104 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
105 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
106 mode = saa_readl(SAA7134_GPIO_GPMODE0 >> 2) & 0xfffffff;
107 status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
108 core_dbg("%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
109 dev->name, mode, (~mode) & status, mode & status, msg);
110 }
111
saa7134_set_gpio(struct saa7134_dev * dev,int bit_no,int value)112 void saa7134_set_gpio(struct saa7134_dev *dev, int bit_no, int value)
113 {
114 u32 index, bitval;
115
116 index = 1 << bit_no;
117 switch (value) {
118 case 0: /* static value */
119 case 1:
120 core_dbg("setting GPIO%d to static %d\n", bit_no, value);
121 /* turn sync mode off if necessary */
122 if (index & 0x00c00000)
123 saa_andorb(SAA7134_VIDEO_PORT_CTRL6, 0x0f, 0x00);
124 if (value)
125 bitval = index;
126 else
127 bitval = 0;
128 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, index);
129 saa_andorl(SAA7134_GPIO_GPSTATUS0 >> 2, index, bitval);
130 break;
131 case 3: /* tristate */
132 core_dbg("setting GPIO%d to tristate\n", bit_no);
133 saa_andorl(SAA7134_GPIO_GPMODE0 >> 2, index, 0);
134 break;
135 }
136 }
137
138 /* ------------------------------------------------------------------ */
139
140
141 /* ----------------------------------------------------------- */
142 /* delayed request_module */
143
144 #if defined(CONFIG_MODULES) && defined(MODULE)
145
request_module_async(struct work_struct * work)146 static void request_module_async(struct work_struct *work){
147 struct saa7134_dev* dev = container_of(work, struct saa7134_dev, request_module_wk);
148 if (card_is_empress(dev))
149 request_module("saa7134-empress");
150 if (card_is_dvb(dev))
151 request_module("saa7134-dvb");
152 if (card_is_go7007(dev))
153 request_module("saa7134-go7007");
154 if (alsa) {
155 if (dev->pci->device != PCI_DEVICE_ID_PHILIPS_SAA7130)
156 request_module("saa7134-alsa");
157 }
158 }
159
request_submodules(struct saa7134_dev * dev)160 static void request_submodules(struct saa7134_dev *dev)
161 {
162 INIT_WORK(&dev->request_module_wk, request_module_async);
163 schedule_work(&dev->request_module_wk);
164 }
165
flush_request_submodules(struct saa7134_dev * dev)166 static void flush_request_submodules(struct saa7134_dev *dev)
167 {
168 flush_work(&dev->request_module_wk);
169 }
170
171 #else
172 #define request_submodules(dev)
173 #define flush_request_submodules(dev)
174 #endif /* CONFIG_MODULES */
175
176 /* ------------------------------------------------------------------ */
177
178 /* nr of (saa7134-)pages for the given buffer size */
saa7134_buffer_pages(int size)179 static int saa7134_buffer_pages(int size)
180 {
181 size = PAGE_ALIGN(size);
182 size += PAGE_SIZE; /* for non-page-aligned buffers */
183 size /= 4096;
184 return size;
185 }
186
187 /* calc max # of buffers from size (must not exceed the 4MB virtual
188 * address space per DMA channel) */
saa7134_buffer_count(unsigned int size,unsigned int count)189 int saa7134_buffer_count(unsigned int size, unsigned int count)
190 {
191 unsigned int maxcount;
192
193 maxcount = 1024 / saa7134_buffer_pages(size);
194 if (count > maxcount)
195 count = maxcount;
196 return count;
197 }
198
saa7134_buffer_startpage(struct saa7134_buf * buf)199 int saa7134_buffer_startpage(struct saa7134_buf *buf)
200 {
201 return saa7134_buffer_pages(vb2_plane_size(&buf->vb2.vb2_buf, 0))
202 * buf->vb2.vb2_buf.index;
203 }
204
saa7134_buffer_base(struct saa7134_buf * buf)205 unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
206 {
207 unsigned long base;
208 struct sg_table *dma = vb2_dma_sg_plane_desc(&buf->vb2.vb2_buf, 0);
209
210 base = saa7134_buffer_startpage(buf) * 4096;
211 base += dma->sgl[0].offset;
212 return base;
213 }
214
215 /* ------------------------------------------------------------------ */
216
saa7134_pgtable_alloc(struct pci_dev * pci,struct saa7134_pgtable * pt)217 int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
218 {
219 __le32 *cpu;
220 dma_addr_t dma_addr = 0;
221
222 cpu = dma_alloc_coherent(&pci->dev, SAA7134_PGTABLE_SIZE, &dma_addr,
223 GFP_KERNEL);
224 if (NULL == cpu)
225 return -ENOMEM;
226 pt->size = SAA7134_PGTABLE_SIZE;
227 pt->cpu = cpu;
228 pt->dma = dma_addr;
229 return 0;
230 }
231
saa7134_pgtable_build(struct pci_dev * pci,struct saa7134_pgtable * pt,struct scatterlist * list,unsigned int length,unsigned int startpage)232 int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
233 struct scatterlist *list, unsigned int length,
234 unsigned int startpage)
235 {
236 __le32 *ptr;
237 unsigned int i, p;
238
239 BUG_ON(NULL == pt || NULL == pt->cpu);
240
241 ptr = pt->cpu + startpage;
242 for (i = 0; i < length; i++, list = sg_next(list)) {
243 for (p = 0; p * 4096 < sg_dma_len(list); p++, ptr++)
244 *ptr = cpu_to_le32(sg_dma_address(list) +
245 list->offset + p * 4096);
246 }
247 return 0;
248 }
249
saa7134_pgtable_free(struct pci_dev * pci,struct saa7134_pgtable * pt)250 void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
251 {
252 if (NULL == pt->cpu)
253 return;
254 dma_free_coherent(&pci->dev, pt->size, pt->cpu, pt->dma);
255 pt->cpu = NULL;
256 }
257
258 /* ------------------------------------------------------------------ */
259
saa7134_buffer_queue(struct saa7134_dev * dev,struct saa7134_dmaqueue * q,struct saa7134_buf * buf)260 int saa7134_buffer_queue(struct saa7134_dev *dev,
261 struct saa7134_dmaqueue *q,
262 struct saa7134_buf *buf)
263 {
264 struct saa7134_buf *next = NULL;
265 unsigned long flags;
266
267 spin_lock_irqsave(&dev->slock, flags);
268 core_dbg("buffer_queue %p\n", buf);
269 if (NULL == q->curr) {
270 if (!q->need_two) {
271 q->curr = buf;
272 buf->activate(dev, buf, NULL);
273 } else if (list_empty(&q->queue)) {
274 list_add_tail(&buf->entry, &q->queue);
275 } else {
276 next = list_entry(q->queue.next, struct saa7134_buf,
277 entry);
278 q->curr = buf;
279 buf->activate(dev, buf, next);
280 }
281 } else {
282 list_add_tail(&buf->entry, &q->queue);
283 }
284 spin_unlock_irqrestore(&dev->slock, flags);
285 return 0;
286 }
287
saa7134_buffer_finish(struct saa7134_dev * dev,struct saa7134_dmaqueue * q,unsigned int state)288 void saa7134_buffer_finish(struct saa7134_dev *dev,
289 struct saa7134_dmaqueue *q,
290 unsigned int state)
291 {
292 core_dbg("buffer_finish %p\n", q->curr);
293
294 /* finish current buffer */
295 q->curr->vb2.vb2_buf.timestamp = ktime_get_ns();
296 q->curr->vb2.sequence = q->seq_nr++;
297 vb2_buffer_done(&q->curr->vb2.vb2_buf, state);
298 q->curr = NULL;
299 }
300
saa7134_buffer_next(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)301 void saa7134_buffer_next(struct saa7134_dev *dev,
302 struct saa7134_dmaqueue *q)
303 {
304 struct saa7134_buf *buf,*next = NULL;
305
306 assert_spin_locked(&dev->slock);
307 BUG_ON(NULL != q->curr);
308
309 if (!list_empty(&q->queue)) {
310 /* activate next one from queue */
311 buf = list_entry(q->queue.next, struct saa7134_buf, entry);
312 core_dbg("buffer_next %p [prev=%p/next=%p]\n",
313 buf, q->queue.prev, q->queue.next);
314 list_del(&buf->entry);
315 if (!list_empty(&q->queue))
316 next = list_entry(q->queue.next, struct saa7134_buf, entry);
317 q->curr = buf;
318 buf->activate(dev, buf, next);
319 core_dbg("buffer_next #2 prev=%p/next=%p\n",
320 q->queue.prev, q->queue.next);
321 } else {
322 /* nothing to do -- just stop DMA */
323 core_dbg("buffer_next %p\n", NULL);
324 saa7134_set_dmabits(dev);
325 del_timer(&q->timeout);
326 }
327 }
328
saa7134_buffer_timeout(struct timer_list * t)329 void saa7134_buffer_timeout(struct timer_list *t)
330 {
331 struct saa7134_dmaqueue *q = from_timer(q, t, timeout);
332 struct saa7134_dev *dev = q->dev;
333 unsigned long flags;
334
335 spin_lock_irqsave(&dev->slock, flags);
336
337 /* try to reset the hardware (SWRST) */
338 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
339 saa_writeb(SAA7134_REGION_ENABLE, 0x80);
340 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
341
342 /* flag current buffer as failed,
343 try to start over with the next one. */
344 if (q->curr) {
345 core_dbg("timeout on %p\n", q->curr);
346 saa7134_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
347 }
348 saa7134_buffer_next(dev, q);
349 spin_unlock_irqrestore(&dev->slock, flags);
350 }
351
saa7134_stop_streaming(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)352 void saa7134_stop_streaming(struct saa7134_dev *dev, struct saa7134_dmaqueue *q)
353 {
354 unsigned long flags;
355 struct list_head *pos, *n;
356 struct saa7134_buf *tmp;
357
358 spin_lock_irqsave(&dev->slock, flags);
359 list_for_each_safe(pos, n, &q->queue) {
360 tmp = list_entry(pos, struct saa7134_buf, entry);
361 vb2_buffer_done(&tmp->vb2.vb2_buf,
362 VB2_BUF_STATE_ERROR);
363 list_del(pos);
364 tmp = NULL;
365 }
366 spin_unlock_irqrestore(&dev->slock, flags);
367 saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
368 }
369 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
370
371 /* ------------------------------------------------------------------ */
372
saa7134_set_dmabits(struct saa7134_dev * dev)373 int saa7134_set_dmabits(struct saa7134_dev *dev)
374 {
375 u32 split, task=0, ctrl=0, irq=0;
376 enum v4l2_field cap = V4L2_FIELD_ANY;
377 enum v4l2_field ov = V4L2_FIELD_ANY;
378
379 assert_spin_locked(&dev->slock);
380
381 if (dev->insuspend)
382 return 0;
383
384 /* video capture -- dma 0 + video task A */
385 if (dev->video_q.curr) {
386 task |= 0x01;
387 ctrl |= SAA7134_MAIN_CTRL_TE0;
388 irq |= SAA7134_IRQ1_INTE_RA0_1 |
389 SAA7134_IRQ1_INTE_RA0_0;
390 cap = dev->field;
391 }
392
393 /* video capture -- dma 1+2 (planar modes) */
394 if (dev->video_q.curr && dev->fmt->planar) {
395 ctrl |= SAA7134_MAIN_CTRL_TE4 |
396 SAA7134_MAIN_CTRL_TE5;
397 }
398
399 /* vbi capture -- dma 0 + vbi task A+B */
400 if (dev->vbi_q.curr) {
401 task |= 0x22;
402 ctrl |= SAA7134_MAIN_CTRL_TE2 |
403 SAA7134_MAIN_CTRL_TE3;
404 irq |= SAA7134_IRQ1_INTE_RA0_7 |
405 SAA7134_IRQ1_INTE_RA0_6 |
406 SAA7134_IRQ1_INTE_RA0_5 |
407 SAA7134_IRQ1_INTE_RA0_4;
408 }
409
410 /* audio capture -- dma 3 */
411 if (dev->dmasound.dma_running) {
412 ctrl |= SAA7134_MAIN_CTRL_TE6;
413 irq |= SAA7134_IRQ1_INTE_RA3_1 |
414 SAA7134_IRQ1_INTE_RA3_0;
415 }
416
417 /* TS capture -- dma 5 */
418 if (dev->ts_q.curr) {
419 ctrl |= SAA7134_MAIN_CTRL_TE5;
420 irq |= SAA7134_IRQ1_INTE_RA2_1 |
421 SAA7134_IRQ1_INTE_RA2_0;
422 }
423
424 /* set task conditions + field handling */
425 if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
426 /* default config -- use full frames */
427 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
428 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
429 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02);
430 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02);
431 split = 0;
432 } else {
433 /* split fields between tasks */
434 if (V4L2_FIELD_TOP == cap) {
435 /* odd A, even B, repeat */
436 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
437 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
438 } else {
439 /* odd B, even A, repeat */
440 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
441 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
442 }
443 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01);
444 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01);
445 split = 1;
446 }
447
448 /* irqs */
449 saa_writeb(SAA7134_REGION_ENABLE, task);
450 saa_writel(SAA7134_IRQ1, irq);
451 saa_andorl(SAA7134_MAIN_CTRL,
452 SAA7134_MAIN_CTRL_TE0 |
453 SAA7134_MAIN_CTRL_TE1 |
454 SAA7134_MAIN_CTRL_TE2 |
455 SAA7134_MAIN_CTRL_TE3 |
456 SAA7134_MAIN_CTRL_TE4 |
457 SAA7134_MAIN_CTRL_TE5 |
458 SAA7134_MAIN_CTRL_TE6,
459 ctrl);
460 core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
461 task, ctrl, irq, split ? "no" : "yes");
462
463 return 0;
464 }
465
466 /* ------------------------------------------------------------------ */
467 /* IRQ handler + helpers */
468
469 static char *irqbits[] = {
470 "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
471 "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
472 "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
473 "GPIO16", "GPIO18", "GPIO22", "GPIO23"
474 };
475 #define IRQBITS ARRAY_SIZE(irqbits)
476
print_irqstatus(struct saa7134_dev * dev,int loop,unsigned long report,unsigned long status)477 static void print_irqstatus(struct saa7134_dev *dev, int loop,
478 unsigned long report, unsigned long status)
479 {
480 unsigned int i;
481
482 irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
483 loop, jiffies, report, status);
484 for (i = 0; i < IRQBITS; i++) {
485 if (!(report & (1 << i)))
486 continue;
487 pr_cont(" %s", irqbits[i]);
488 }
489 if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
490 pr_cont(" | RA0=%s,%s,%s,%ld",
491 (status & 0x40) ? "vbi" : "video",
492 (status & 0x20) ? "b" : "a",
493 (status & 0x10) ? "odd" : "even",
494 (status & 0x0f));
495 }
496 pr_cont("\n");
497 }
498
saa7134_irq(int irq,void * dev_id)499 static irqreturn_t saa7134_irq(int irq, void *dev_id)
500 {
501 struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
502 unsigned long report,status;
503 int loop, handled = 0;
504
505 if (dev->insuspend)
506 goto out;
507
508 for (loop = 0; loop < 10; loop++) {
509 report = saa_readl(SAA7134_IRQ_REPORT);
510 status = saa_readl(SAA7134_IRQ_STATUS);
511
512 /* If dmasound support is active and we get a sound report,
513 * mask out the report and let the saa7134-alsa module deal
514 * with it */
515 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
516 (dev->dmasound.priv_data != NULL) )
517 {
518 irq_dbg(2, "preserving DMA sound interrupt\n");
519 report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
520 }
521
522 if (0 == report) {
523 irq_dbg(2, "no (more) work\n");
524 goto out;
525 }
526
527 handled = 1;
528 saa_writel(SAA7134_IRQ_REPORT,report);
529 if (irq_debug)
530 print_irqstatus(dev,loop,report,status);
531
532
533 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
534 (report & SAA7134_IRQ_REPORT_INTL))
535 saa7134_irq_video_signalchange(dev);
536
537
538 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
539 (status & 0x60) == 0)
540 saa7134_irq_video_done(dev,status);
541
542 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
543 (status & 0x40) == 0x40)
544 saa7134_irq_vbi_done(dev,status);
545
546 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
547 card_has_mpeg(dev)) {
548 if (dev->mops->irq_ts_done != NULL)
549 dev->mops->irq_ts_done(dev, status);
550 else
551 saa7134_irq_ts_done(dev, status);
552 }
553
554 if (report & SAA7134_IRQ_REPORT_GPIO16) {
555 switch (dev->has_remote) {
556 case SAA7134_REMOTE_GPIO:
557 if (!dev->remote)
558 break;
559 if (dev->remote->mask_keydown & 0x10000) {
560 saa7134_input_irq(dev);
561 }
562 break;
563
564 case SAA7134_REMOTE_I2C:
565 break; /* FIXME: invoke I2C get_key() */
566
567 default: /* GPIO16 not used by IR remote */
568 break;
569 }
570 }
571
572 if (report & SAA7134_IRQ_REPORT_GPIO18) {
573 switch (dev->has_remote) {
574 case SAA7134_REMOTE_GPIO:
575 if (!dev->remote)
576 break;
577 if ((dev->remote->mask_keydown & 0x40000) ||
578 (dev->remote->mask_keyup & 0x40000)) {
579 saa7134_input_irq(dev);
580 }
581 break;
582
583 case SAA7134_REMOTE_I2C:
584 break; /* FIXME: invoke I2C get_key() */
585
586 default: /* GPIO18 not used by IR remote */
587 break;
588 }
589 }
590 }
591
592 if (10 == loop) {
593 print_irqstatus(dev,loop,report,status);
594 if (report & SAA7134_IRQ_REPORT_PE) {
595 /* disable all parity error */
596 pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
597 dev->name);
598 saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
599 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
600 /* disable gpio16 IRQ */
601 pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
602 dev->name);
603 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
604 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
605 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
606 /* disable gpio18 IRQs */
607 pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
608 dev->name);
609 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
610 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
611 } else {
612 /* disable all irqs */
613 pr_warn("%s/irq: looping -- clearing all enable bits\n",
614 dev->name);
615 saa_writel(SAA7134_IRQ1,0);
616 saa_writel(SAA7134_IRQ2,0);
617 }
618 }
619
620 out:
621 return IRQ_RETVAL(handled);
622 }
623
624 /* ------------------------------------------------------------------ */
625
626 /* early init (no i2c, no irq) */
627
saa7134_hw_enable1(struct saa7134_dev * dev)628 static int saa7134_hw_enable1(struct saa7134_dev *dev)
629 {
630 /* RAM FIFO config */
631 saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
632 saa_writel(SAA7134_THRESHOULD, 0x02020202);
633
634 /* enable audio + video processing */
635 saa_writel(SAA7134_MAIN_CTRL,
636 SAA7134_MAIN_CTRL_VPLLE |
637 SAA7134_MAIN_CTRL_APLLE |
638 SAA7134_MAIN_CTRL_EXOSC |
639 SAA7134_MAIN_CTRL_EVFE1 |
640 SAA7134_MAIN_CTRL_EVFE2 |
641 SAA7134_MAIN_CTRL_ESFE |
642 SAA7134_MAIN_CTRL_EBDAC);
643
644 /*
645 * Initialize OSS _after_ enabling audio clock PLL and audio processing.
646 * OSS initialization writes to registers via the audio DSP; these
647 * writes will fail unless the audio clock has been started. At worst,
648 * audio will not work.
649 */
650
651 /* enable peripheral devices */
652 saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
653
654 /* set vertical line numbering start (vbi needs this) */
655 saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
656
657 return 0;
658 }
659
saa7134_hwinit1(struct saa7134_dev * dev)660 static int saa7134_hwinit1(struct saa7134_dev *dev)
661 {
662 core_dbg("hwinit1\n");
663
664 saa_writel(SAA7134_IRQ1, 0);
665 saa_writel(SAA7134_IRQ2, 0);
666
667 /* Clear any stale IRQ reports */
668 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
669
670 mutex_init(&dev->lock);
671 spin_lock_init(&dev->slock);
672
673 saa7134_track_gpio(dev,"pre-init");
674 saa7134_video_init1(dev);
675 saa7134_vbi_init1(dev);
676 if (card_has_mpeg(dev))
677 saa7134_ts_init1(dev);
678 saa7134_input_init1(dev);
679
680 saa7134_hw_enable1(dev);
681
682 return 0;
683 }
684
685 /* late init (with i2c + irq) */
saa7134_hw_enable2(struct saa7134_dev * dev)686 static int saa7134_hw_enable2(struct saa7134_dev *dev)
687 {
688
689 unsigned int irq2_mask;
690
691 /* enable IRQ's */
692 irq2_mask =
693 SAA7134_IRQ2_INTE_DEC3 |
694 SAA7134_IRQ2_INTE_DEC2 |
695 SAA7134_IRQ2_INTE_DEC1 |
696 SAA7134_IRQ2_INTE_DEC0 |
697 SAA7134_IRQ2_INTE_PE |
698 SAA7134_IRQ2_INTE_AR;
699
700 if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
701 if (dev->remote->mask_keydown & 0x10000)
702 irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
703 else { /* Allow enabling both IRQ edge triggers */
704 if (dev->remote->mask_keydown & 0x40000)
705 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
706 if (dev->remote->mask_keyup & 0x40000)
707 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
708 }
709 }
710
711 if (dev->has_remote == SAA7134_REMOTE_I2C) {
712 request_module("ir-kbd-i2c");
713 }
714
715 saa_writel(SAA7134_IRQ1, 0);
716 saa_writel(SAA7134_IRQ2, irq2_mask);
717
718 return 0;
719 }
720
saa7134_hwinit2(struct saa7134_dev * dev)721 static int saa7134_hwinit2(struct saa7134_dev *dev)
722 {
723
724 core_dbg("hwinit2\n");
725
726 saa7134_video_init2(dev);
727 saa7134_tvaudio_init2(dev);
728
729 saa7134_hw_enable2(dev);
730
731 return 0;
732 }
733
734
735 /* shutdown */
saa7134_hwfini(struct saa7134_dev * dev)736 static int saa7134_hwfini(struct saa7134_dev *dev)
737 {
738 core_dbg("hwfini\n");
739
740 if (card_has_mpeg(dev))
741 saa7134_ts_fini(dev);
742 saa7134_input_fini(dev);
743 saa7134_vbi_fini(dev);
744 saa7134_tvaudio_fini(dev);
745 saa7134_video_fini(dev);
746 return 0;
747 }
748
must_configure_manually(int has_eeprom)749 static void must_configure_manually(int has_eeprom)
750 {
751 unsigned int i,p;
752
753 if (!has_eeprom)
754 pr_warn("saa7134: <rant>\n"
755 "saa7134: Congratulations! Your TV card vendor saved a few\n"
756 "saa7134: cents for a eeprom, thus your pci board has no\n"
757 "saa7134: subsystem ID and I can't identify it automatically\n"
758 "saa7134: </rant>\n"
759 "saa7134: I feel better now. Ok, here are the good news:\n"
760 "saa7134: You can use the card=<nr> insmod option to specify\n"
761 "saa7134: which board do you have. The list:\n");
762 else
763 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
764 "saa7134: insmod option to specify which board do you have, but this is\n"
765 "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
766 "saa7134: for support at linux-media@vger.kernel.org.\n"
767 "saa7134: The supported cards are:\n");
768
769 for (i = 0; i < saa7134_bcount; i++) {
770 pr_warn("saa7134: card=%d -> %-40.40s",
771 i,saa7134_boards[i].name);
772 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
773 if (saa7134_pci_tbl[p].driver_data != i)
774 continue;
775 pr_cont(" %04x:%04x",
776 saa7134_pci_tbl[p].subvendor,
777 saa7134_pci_tbl[p].subdevice);
778 }
779 pr_cont("\n");
780 }
781 }
782
saa7134_unregister_media_device(struct saa7134_dev * dev)783 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
784 {
785
786 #ifdef CONFIG_MEDIA_CONTROLLER
787 if (!dev->media_dev)
788 return;
789 media_device_unregister(dev->media_dev);
790 media_device_cleanup(dev->media_dev);
791 kfree(dev->media_dev);
792 dev->media_dev = NULL;
793 #endif
794 }
795
saa7134_media_release(struct saa7134_dev * dev)796 static void saa7134_media_release(struct saa7134_dev *dev)
797 {
798 #ifdef CONFIG_MEDIA_CONTROLLER
799 int i;
800
801 for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
802 media_device_unregister_entity(&dev->input_ent[i]);
803 #endif
804 }
805
806 #if defined(CONFIG_MEDIA_CONTROLLER)
saa7134_create_entities(struct saa7134_dev * dev)807 static void saa7134_create_entities(struct saa7134_dev *dev)
808 {
809 int ret, i;
810 struct media_entity *entity;
811 struct media_entity *decoder = NULL;
812
813 /* Check if it is using an external analog TV demod */
814 media_device_for_each_entity(entity, dev->media_dev) {
815 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
816 decoder = entity;
817 break;
818 }
819 }
820
821 /*
822 * saa713x is not using an external ATV demod.
823 * Register the internal one
824 */
825 if (!decoder) {
826 dev->demod.name = "saa713x";
827 dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
828 dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
829 dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
830 dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
831 dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
832
833 ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
834 dev->demod_pad);
835 if (ret < 0)
836 pr_err("failed to initialize demod pad!\n");
837
838 ret = media_device_register_entity(dev->media_dev, &dev->demod);
839 if (ret < 0)
840 pr_err("failed to register demod entity!\n");
841
842 dev->decoder = &dev->demod;
843 } else {
844 dev->decoder = decoder;
845 }
846
847 /* Initialize Video, VBI and Radio pads */
848 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
849 ret = media_entity_pads_init(&dev->video_dev->entity, 1,
850 &dev->video_pad);
851 if (ret < 0)
852 pr_err("failed to initialize video media entity!\n");
853
854 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
855 ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
856 &dev->vbi_pad);
857 if (ret < 0)
858 pr_err("failed to initialize vbi media entity!\n");
859
860 /* Create entities for each input connector */
861 for (i = 0; i < SAA7134_INPUT_MAX; i++) {
862 struct media_entity *ent = &dev->input_ent[i];
863 struct saa7134_input *in = &card_in(dev, i);
864
865 if (in->type == SAA7134_NO_INPUT)
866 break;
867
868 /* This input uses the S-Video connector */
869 if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
870 continue;
871
872 ent->name = saa7134_input_name[in->type];
873 ent->flags = MEDIA_ENT_FL_CONNECTOR;
874 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
875
876 switch (in->type) {
877 case SAA7134_INPUT_COMPOSITE:
878 case SAA7134_INPUT_COMPOSITE0:
879 case SAA7134_INPUT_COMPOSITE1:
880 case SAA7134_INPUT_COMPOSITE2:
881 case SAA7134_INPUT_COMPOSITE3:
882 case SAA7134_INPUT_COMPOSITE4:
883 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
884 break;
885 case SAA7134_INPUT_SVIDEO:
886 case SAA7134_INPUT_SVIDEO0:
887 case SAA7134_INPUT_SVIDEO1:
888 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
889 break;
890 default:
891 /*
892 * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
893 *
894 * Please notice that neither SAA7134_INPUT_MUTE or
895 * SAA7134_INPUT_RADIO are defined at
896 * saa7134_board.input.
897 */
898 ent->function = MEDIA_ENT_F_CONN_RF;
899 break;
900 }
901
902 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
903 if (ret < 0)
904 pr_err("failed to initialize input pad[%d]!\n", i);
905
906 ret = media_device_register_entity(dev->media_dev, ent);
907 if (ret < 0)
908 pr_err("failed to register input entity %d!\n", i);
909 }
910
911 /* Create input for Radio RF connector */
912 if (card_has_radio(dev)) {
913 struct saa7134_input *in = &saa7134_boards[dev->board].radio;
914 struct media_entity *ent = &dev->input_ent[i];
915
916 ent->name = saa7134_input_name[in->type];
917 ent->flags = MEDIA_ENT_FL_CONNECTOR;
918 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
919 ent->function = MEDIA_ENT_F_CONN_RF;
920
921 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
922 if (ret < 0)
923 pr_err("failed to initialize input pad[%d]!\n", i);
924
925 ret = media_device_register_entity(dev->media_dev, ent);
926 if (ret < 0)
927 pr_err("failed to register input entity %d!\n", i);
928 }
929 }
930 #endif
931
vdev_init(struct saa7134_dev * dev,struct video_device * template,char * type)932 static struct video_device *vdev_init(struct saa7134_dev *dev,
933 struct video_device *template,
934 char *type)
935 {
936 struct video_device *vfd;
937
938 vfd = video_device_alloc();
939 if (NULL == vfd)
940 return NULL;
941 *vfd = *template;
942 vfd->v4l2_dev = &dev->v4l2_dev;
943 vfd->release = video_device_release;
944 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
945 dev->name, type, saa7134_boards[dev->board].name);
946 video_set_drvdata(vfd, dev);
947 return vfd;
948 }
949
saa7134_unregister_video(struct saa7134_dev * dev)950 static void saa7134_unregister_video(struct saa7134_dev *dev)
951 {
952 saa7134_media_release(dev);
953
954 if (dev->video_dev) {
955 if (video_is_registered(dev->video_dev))
956 vb2_video_unregister_device(dev->video_dev);
957 else
958 video_device_release(dev->video_dev);
959 dev->video_dev = NULL;
960 }
961 if (dev->vbi_dev) {
962 if (video_is_registered(dev->vbi_dev))
963 vb2_video_unregister_device(dev->vbi_dev);
964 else
965 video_device_release(dev->vbi_dev);
966 dev->vbi_dev = NULL;
967 }
968 if (dev->radio_dev) {
969 if (video_is_registered(dev->radio_dev))
970 video_unregister_device(dev->radio_dev);
971 else
972 video_device_release(dev->radio_dev);
973 dev->radio_dev = NULL;
974 }
975 }
976
mpeg_ops_attach(struct saa7134_mpeg_ops * ops,struct saa7134_dev * dev)977 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
978 struct saa7134_dev *dev)
979 {
980 int err;
981
982 if (NULL != dev->mops)
983 return;
984 if (saa7134_boards[dev->board].mpeg != ops->type)
985 return;
986 err = ops->init(dev);
987 if (0 != err)
988 return;
989 dev->mops = ops;
990 }
991
mpeg_ops_detach(struct saa7134_mpeg_ops * ops,struct saa7134_dev * dev)992 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
993 struct saa7134_dev *dev)
994 {
995 if (NULL == dev->mops)
996 return;
997 if (dev->mops != ops)
998 return;
999 dev->mops->fini(dev);
1000 dev->mops = NULL;
1001 }
1002
saa7134_initdev(struct pci_dev * pci_dev,const struct pci_device_id * pci_id)1003 static int saa7134_initdev(struct pci_dev *pci_dev,
1004 const struct pci_device_id *pci_id)
1005 {
1006 struct saa7134_dev *dev;
1007 struct saa7134_mpeg_ops *mops;
1008 int err;
1009
1010 if (saa7134_devcount == SAA7134_MAXBOARDS)
1011 return -ENOMEM;
1012
1013 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1014 if (NULL == dev)
1015 return -ENOMEM;
1016
1017 dev->nr = saa7134_devcount;
1018 sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1019
1020 #ifdef CONFIG_MEDIA_CONTROLLER
1021 dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1022 if (!dev->media_dev) {
1023 err = -ENOMEM;
1024 goto err_free_dev;
1025 }
1026 media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1027 dev->v4l2_dev.mdev = dev->media_dev;
1028 #endif
1029
1030 err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1031 if (err)
1032 goto err_free_dev;
1033
1034 /* pci init */
1035 dev->pci = pci_dev;
1036 if (pci_enable_device(pci_dev)) {
1037 err = -EIO;
1038 goto err_v4l2_unregister;
1039 }
1040
1041 /* pci quirks */
1042 if (pci_pci_problems) {
1043 if (pci_pci_problems & PCIPCI_TRITON)
1044 pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1045 if (pci_pci_problems & PCIPCI_NATOMA)
1046 pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1047 if (pci_pci_problems & PCIPCI_VIAETBF)
1048 pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1049 if (pci_pci_problems & PCIPCI_VSFX)
1050 pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1051 #ifdef PCIPCI_ALIMAGIK
1052 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1053 pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1054 dev->name);
1055 latency = 0x0A;
1056 }
1057 #endif
1058 }
1059 if (UNSET != latency) {
1060 pr_info("%s: setting pci latency timer to %d\n",
1061 dev->name,latency);
1062 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1063 }
1064
1065 /* print pci info */
1066 dev->pci_rev = pci_dev->revision;
1067 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
1068 pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1069 dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1070 dev->pci_lat,
1071 (unsigned long long)pci_resource_start(pci_dev, 0));
1072 pci_set_master(pci_dev);
1073 err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32));
1074 if (err) {
1075 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1076 goto err_v4l2_unregister;
1077 }
1078
1079 /* board config */
1080 dev->board = pci_id->driver_data;
1081 if ((unsigned)card[dev->nr] < saa7134_bcount)
1082 dev->board = card[dev->nr];
1083 if (SAA7134_BOARD_UNKNOWN == dev->board)
1084 must_configure_manually(0);
1085 else if (SAA7134_BOARD_NOAUTO == dev->board) {
1086 must_configure_manually(1);
1087 dev->board = SAA7134_BOARD_UNKNOWN;
1088 }
1089 dev->autodetected = card[dev->nr] != dev->board;
1090 dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1091 dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1092 dev->radio_type = saa7134_boards[dev->board].radio_type;
1093 dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1094 dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1095 if (UNSET != tuner[dev->nr])
1096 dev->tuner_type = tuner[dev->nr];
1097 pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1098 dev->name,pci_dev->subsystem_vendor,
1099 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1100 dev->board, dev->autodetected ?
1101 "autodetected" : "insmod option");
1102
1103 /* get mmio */
1104 if (!request_mem_region(pci_resource_start(pci_dev,0),
1105 pci_resource_len(pci_dev,0),
1106 dev->name)) {
1107 err = -EBUSY;
1108 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1109 dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1110 goto err_v4l2_unregister;
1111 }
1112 dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1113 pci_resource_len(pci_dev, 0));
1114 dev->bmmio = (__u8 __iomem *)dev->lmmio;
1115 if (NULL == dev->lmmio) {
1116 err = -EIO;
1117 pr_err("%s: can't ioremap() MMIO memory\n",
1118 dev->name);
1119 goto err_release_mem_reg;
1120 }
1121
1122 /* initialize hardware #1 */
1123 saa7134_board_init1(dev);
1124 saa7134_hwinit1(dev);
1125
1126 /* get irq */
1127 err = request_irq(pci_dev->irq, saa7134_irq,
1128 IRQF_SHARED, dev->name, dev);
1129 if (err < 0) {
1130 pr_err("%s: can't get IRQ %d\n",
1131 dev->name,pci_dev->irq);
1132 goto err_iounmap;
1133 }
1134
1135 /* wait a bit, register i2c bus */
1136 msleep(100);
1137 saa7134_i2c_register(dev);
1138 saa7134_board_init2(dev);
1139
1140 saa7134_hwinit2(dev);
1141
1142 /* load i2c helpers */
1143 if (card_is_empress(dev)) {
1144 dev->empress_sd =
1145 v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1146 "saa6752hs",
1147 saa7134_boards[dev->board].empress_addr, NULL);
1148
1149 if (dev->empress_sd)
1150 dev->empress_sd->grp_id = GRP_EMPRESS;
1151 }
1152
1153 if (saa7134_boards[dev->board].rds_addr) {
1154 struct v4l2_subdev *sd;
1155
1156 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1157 &dev->i2c_adap, "saa6588",
1158 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1159 if (sd) {
1160 pr_info("%s: found RDS decoder\n", dev->name);
1161 dev->has_rds = 1;
1162 }
1163 }
1164
1165 mutex_lock(&saa7134_devlist_lock);
1166 list_for_each_entry(mops, &mops_list, next)
1167 mpeg_ops_attach(mops, dev);
1168 list_add_tail(&dev->devlist, &saa7134_devlist);
1169 mutex_unlock(&saa7134_devlist_lock);
1170
1171 /* check for signal */
1172 saa7134_irq_video_signalchange(dev);
1173
1174 if (TUNER_ABSENT != dev->tuner_type)
1175 saa_call_all(dev, core, s_power, 0);
1176
1177 /* register v4l devices */
1178 dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1179 dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1180 dev->video_dev->lock = &dev->lock;
1181 dev->video_dev->queue = &dev->video_vbq;
1182 dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1183 V4L2_CAP_VIDEO_CAPTURE;
1184 if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1185 dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1186
1187 err = video_register_device(dev->video_dev,VFL_TYPE_VIDEO,
1188 video_nr[dev->nr]);
1189 if (err < 0) {
1190 pr_info("%s: can't register video device\n",
1191 dev->name);
1192 goto err_unregister_video;
1193 }
1194 pr_info("%s: registered device %s [v4l2]\n",
1195 dev->name, video_device_node_name(dev->video_dev));
1196
1197 dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1198 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1199 dev->vbi_dev->lock = &dev->lock;
1200 dev->vbi_dev->queue = &dev->vbi_vbq;
1201 dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1202 V4L2_CAP_VBI_CAPTURE;
1203 if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1204 dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1205
1206 err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1207 vbi_nr[dev->nr]);
1208 if (err < 0)
1209 goto err_unregister_video;
1210 pr_info("%s: registered device %s\n",
1211 dev->name, video_device_node_name(dev->vbi_dev));
1212
1213 if (card_has_radio(dev)) {
1214 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1215 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1216 dev->radio_dev->lock = &dev->lock;
1217 dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1218 if (dev->has_rds)
1219 dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1220 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1221 radio_nr[dev->nr]);
1222 if (err < 0)
1223 goto err_unregister_video;
1224 pr_info("%s: registered device %s\n",
1225 dev->name, video_device_node_name(dev->radio_dev));
1226 }
1227
1228 #ifdef CONFIG_MEDIA_CONTROLLER
1229 saa7134_create_entities(dev);
1230
1231 err = v4l2_mc_create_media_graph(dev->media_dev);
1232 if (err) {
1233 pr_err("failed to create media graph\n");
1234 goto err_unregister_video;
1235 }
1236 #endif
1237 /* everything worked */
1238 saa7134_devcount++;
1239
1240 if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1241 saa7134_dmasound_init(dev);
1242
1243 request_submodules(dev);
1244
1245 /*
1246 * Do it at the end, to reduce dynamic configuration changes during
1247 * the device init. Yet, as request_modules() can be async, the
1248 * topology will likely change after load the saa7134 subdrivers.
1249 */
1250 #ifdef CONFIG_MEDIA_CONTROLLER
1251 err = media_device_register(dev->media_dev);
1252 if (err) {
1253 media_device_cleanup(dev->media_dev);
1254 goto err_unregister_video;
1255 }
1256 #endif
1257
1258 return 0;
1259
1260 err_unregister_video:
1261 saa7134_unregister_video(dev);
1262 list_del(&dev->devlist);
1263 saa7134_i2c_unregister(dev);
1264 free_irq(pci_dev->irq, dev);
1265 err_iounmap:
1266 saa7134_hwfini(dev);
1267 iounmap(dev->lmmio);
1268 err_release_mem_reg:
1269 release_mem_region(pci_resource_start(pci_dev,0),
1270 pci_resource_len(pci_dev,0));
1271 err_v4l2_unregister:
1272 v4l2_device_unregister(&dev->v4l2_dev);
1273 err_free_dev:
1274 #ifdef CONFIG_MEDIA_CONTROLLER
1275 kfree(dev->media_dev);
1276 #endif
1277 kfree(dev);
1278 return err;
1279 }
1280
saa7134_finidev(struct pci_dev * pci_dev)1281 static void saa7134_finidev(struct pci_dev *pci_dev)
1282 {
1283 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1284 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1285 struct saa7134_mpeg_ops *mops;
1286
1287 flush_request_submodules(dev);
1288
1289 /* Release DMA sound modules if present */
1290 if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1291 saa7134_dmasound_exit(dev);
1292 }
1293
1294 /* debugging ... */
1295 if (irq_debug) {
1296 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1297 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1298 print_irqstatus(dev,42,report,status);
1299 }
1300
1301 /* disable peripheral devices */
1302 saa_writeb(SAA7134_SPECIAL_MODE,0);
1303
1304 /* shutdown hardware */
1305 saa_writel(SAA7134_IRQ1,0);
1306 saa_writel(SAA7134_IRQ2,0);
1307 saa_writel(SAA7134_MAIN_CTRL,0);
1308
1309 /* shutdown subsystems */
1310 saa7134_hwfini(dev);
1311
1312 /* unregister */
1313 mutex_lock(&saa7134_devlist_lock);
1314 list_del(&dev->devlist);
1315 list_for_each_entry(mops, &mops_list, next)
1316 mpeg_ops_detach(mops, dev);
1317 mutex_unlock(&saa7134_devlist_lock);
1318 saa7134_devcount--;
1319
1320 saa7134_i2c_unregister(dev);
1321 saa7134_unregister_video(dev);
1322
1323
1324 /* the DMA sound modules should be unloaded before reaching
1325 this, but just in case they are still present... */
1326 if (dev->dmasound.priv_data != NULL) {
1327 free_irq(pci_dev->irq, &dev->dmasound);
1328 dev->dmasound.priv_data = NULL;
1329 }
1330
1331
1332 /* release resources */
1333 free_irq(pci_dev->irq, dev);
1334 iounmap(dev->lmmio);
1335 release_mem_region(pci_resource_start(pci_dev,0),
1336 pci_resource_len(pci_dev,0));
1337
1338 v4l2_device_unregister(&dev->v4l2_dev);
1339
1340 saa7134_unregister_media_device(dev);
1341
1342 /* free memory */
1343 kfree(dev);
1344 }
1345
1346 /* resends a current buffer in queue after resume */
saa7134_buffer_requeue(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)1347 static int __maybe_unused saa7134_buffer_requeue(struct saa7134_dev *dev,
1348 struct saa7134_dmaqueue *q)
1349 {
1350 struct saa7134_buf *buf, *next;
1351
1352 assert_spin_locked(&dev->slock);
1353
1354 buf = q->curr;
1355 next = buf;
1356 core_dbg("buffer_requeue\n");
1357
1358 if (!buf)
1359 return 0;
1360
1361 core_dbg("buffer_requeue : resending active buffer\n");
1362
1363 if (!list_empty(&q->queue))
1364 next = list_entry(q->queue.next, struct saa7134_buf,
1365 entry);
1366 buf->activate(dev, buf, next);
1367
1368 return 0;
1369 }
1370
saa7134_suspend(struct device * dev_d)1371 static int __maybe_unused saa7134_suspend(struct device *dev_d)
1372 {
1373 struct pci_dev *pci_dev = to_pci_dev(dev_d);
1374 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1375 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1376
1377 /* Disable interrupts, DMA, and rest of the chip*/
1378 saa_writel(SAA7134_IRQ1, 0);
1379 saa_writel(SAA7134_IRQ2, 0);
1380 saa_writel(SAA7134_MAIN_CTRL, 0);
1381
1382 dev->insuspend = 1;
1383 synchronize_irq(pci_dev->irq);
1384
1385 /* ACK interrupts once more, just in case,
1386 since the IRQ handler won't ack them anymore*/
1387
1388 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1389
1390 /* Disable timeout timers - if we have active buffers, we will
1391 fill them on resume*/
1392
1393 del_timer(&dev->video_q.timeout);
1394 del_timer(&dev->vbi_q.timeout);
1395 del_timer(&dev->ts_q.timeout);
1396
1397 if (dev->remote && dev->remote->dev->users)
1398 saa7134_ir_close(dev->remote->dev);
1399
1400 return 0;
1401 }
1402
saa7134_resume(struct device * dev_d)1403 static int __maybe_unused saa7134_resume(struct device *dev_d)
1404 {
1405 struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1406 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1407 unsigned long flags;
1408
1409 /* Do things that are done in saa7134_initdev ,
1410 except of initializing memory structures.*/
1411
1412 saa7134_board_init1(dev);
1413
1414 /* saa7134_hwinit1 */
1415 if (saa7134_boards[dev->board].video_out)
1416 saa7134_videoport_init(dev);
1417 if (card_has_mpeg(dev))
1418 saa7134_ts_init_hw(dev);
1419 if (dev->remote && dev->remote->dev->users)
1420 saa7134_ir_open(dev->remote->dev);
1421 saa7134_hw_enable1(dev);
1422
1423 msleep(100);
1424
1425 saa7134_board_init2(dev);
1426
1427 /*saa7134_hwinit2*/
1428 saa7134_set_tvnorm_hw(dev);
1429 saa7134_tvaudio_setmute(dev);
1430 saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1431 saa7134_tvaudio_init(dev);
1432 saa7134_enable_i2s(dev);
1433 saa7134_hw_enable2(dev);
1434
1435 saa7134_irq_video_signalchange(dev);
1436
1437 /*resume unfinished buffer(s)*/
1438 spin_lock_irqsave(&dev->slock, flags);
1439 saa7134_buffer_requeue(dev, &dev->video_q);
1440 saa7134_buffer_requeue(dev, &dev->vbi_q);
1441 saa7134_buffer_requeue(dev, &dev->ts_q);
1442
1443 /* FIXME: Disable DMA audio sound - temporary till proper support
1444 is implemented*/
1445
1446 dev->dmasound.dma_running = 0;
1447
1448 /* start DMA now*/
1449 dev->insuspend = 0;
1450 smp_wmb();
1451 saa7134_set_dmabits(dev);
1452 spin_unlock_irqrestore(&dev->slock, flags);
1453
1454 return 0;
1455 }
1456
1457 /* ----------------------------------------------------------- */
1458
saa7134_ts_register(struct saa7134_mpeg_ops * ops)1459 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1460 {
1461 struct saa7134_dev *dev;
1462
1463 mutex_lock(&saa7134_devlist_lock);
1464 list_for_each_entry(dev, &saa7134_devlist, devlist)
1465 mpeg_ops_attach(ops, dev);
1466 list_add_tail(&ops->next,&mops_list);
1467 mutex_unlock(&saa7134_devlist_lock);
1468 return 0;
1469 }
1470
saa7134_ts_unregister(struct saa7134_mpeg_ops * ops)1471 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1472 {
1473 struct saa7134_dev *dev;
1474
1475 mutex_lock(&saa7134_devlist_lock);
1476 list_del(&ops->next);
1477 list_for_each_entry(dev, &saa7134_devlist, devlist)
1478 mpeg_ops_detach(ops, dev);
1479 mutex_unlock(&saa7134_devlist_lock);
1480 }
1481
1482 EXPORT_SYMBOL(saa7134_ts_register);
1483 EXPORT_SYMBOL(saa7134_ts_unregister);
1484
1485 /* ----------------------------------------------------------- */
1486
1487 static SIMPLE_DEV_PM_OPS(saa7134_pm_ops, saa7134_suspend, saa7134_resume);
1488
1489 static struct pci_driver saa7134_pci_driver = {
1490 .name = "saa7134",
1491 .id_table = saa7134_pci_tbl,
1492 .probe = saa7134_initdev,
1493 .remove = saa7134_finidev,
1494 .driver.pm = &saa7134_pm_ops,
1495 };
1496
saa7134_init(void)1497 static int __init saa7134_init(void)
1498 {
1499 pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1500 SAA7134_VERSION);
1501 return pci_register_driver(&saa7134_pci_driver);
1502 }
1503
saa7134_fini(void)1504 static void __exit saa7134_fini(void)
1505 {
1506 pci_unregister_driver(&saa7134_pci_driver);
1507 }
1508
1509 module_init(saa7134_init);
1510 module_exit(saa7134_fini);
1511
1512 /* ----------------------------------------------------------- */
1513
1514 EXPORT_SYMBOL(saa7134_set_gpio);
1515 EXPORT_SYMBOL(saa7134_boards);
1516
1517 /* ----------------- for the DMA sound modules --------------- */
1518
1519 EXPORT_SYMBOL(saa7134_dmasound_init);
1520 EXPORT_SYMBOL(saa7134_dmasound_exit);
1521 EXPORT_SYMBOL(saa7134_pgtable_free);
1522 EXPORT_SYMBOL(saa7134_pgtable_build);
1523 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1524 EXPORT_SYMBOL(saa7134_set_dmabits);
1525