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 < sg_dma_len(list); 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 list_for_each_safe(pos, n, &q->queue) {
363 tmp = list_entry(pos, struct saa7134_buf, entry);
364 vb2_buffer_done(&tmp->vb2.vb2_buf,
365 VB2_BUF_STATE_ERROR);
366 list_del(pos);
367 tmp = NULL;
368 }
369 spin_unlock_irqrestore(&dev->slock, flags);
370 saa7134_buffer_timeout(&q->timeout); /* also calls del_timer(&q->timeout) */
371 }
372 EXPORT_SYMBOL_GPL(saa7134_stop_streaming);
373
374 /* ------------------------------------------------------------------ */
375
saa7134_set_dmabits(struct saa7134_dev * dev)376 int saa7134_set_dmabits(struct saa7134_dev *dev)
377 {
378 u32 split, task=0, ctrl=0, irq=0;
379 enum v4l2_field cap = V4L2_FIELD_ANY;
380 enum v4l2_field ov = V4L2_FIELD_ANY;
381
382 assert_spin_locked(&dev->slock);
383
384 if (dev->insuspend)
385 return 0;
386
387 /* video capture -- dma 0 + video task A */
388 if (dev->video_q.curr) {
389 task |= 0x01;
390 ctrl |= SAA7134_MAIN_CTRL_TE0;
391 irq |= SAA7134_IRQ1_INTE_RA0_1 |
392 SAA7134_IRQ1_INTE_RA0_0;
393 cap = dev->field;
394 }
395
396 /* video capture -- dma 1+2 (planar modes) */
397 if (dev->video_q.curr && dev->fmt->planar) {
398 ctrl |= SAA7134_MAIN_CTRL_TE4 |
399 SAA7134_MAIN_CTRL_TE5;
400 }
401
402 /* screen overlay -- dma 0 + video task B */
403 if (dev->ovenable) {
404 task |= 0x10;
405 ctrl |= SAA7134_MAIN_CTRL_TE1;
406 ov = dev->ovfield;
407 }
408
409 /* vbi capture -- dma 0 + vbi task A+B */
410 if (dev->vbi_q.curr) {
411 task |= 0x22;
412 ctrl |= SAA7134_MAIN_CTRL_TE2 |
413 SAA7134_MAIN_CTRL_TE3;
414 irq |= SAA7134_IRQ1_INTE_RA0_7 |
415 SAA7134_IRQ1_INTE_RA0_6 |
416 SAA7134_IRQ1_INTE_RA0_5 |
417 SAA7134_IRQ1_INTE_RA0_4;
418 }
419
420 /* audio capture -- dma 3 */
421 if (dev->dmasound.dma_running) {
422 ctrl |= SAA7134_MAIN_CTRL_TE6;
423 irq |= SAA7134_IRQ1_INTE_RA3_1 |
424 SAA7134_IRQ1_INTE_RA3_0;
425 }
426
427 /* TS capture -- dma 5 */
428 if (dev->ts_q.curr) {
429 ctrl |= SAA7134_MAIN_CTRL_TE5;
430 irq |= SAA7134_IRQ1_INTE_RA2_1 |
431 SAA7134_IRQ1_INTE_RA2_0;
432 }
433
434 /* set task conditions + field handling */
435 if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
436 /* default config -- use full frames */
437 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
438 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
439 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02);
440 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02);
441 split = 0;
442 } else {
443 /* split fields between tasks */
444 if (V4L2_FIELD_TOP == cap) {
445 /* odd A, even B, repeat */
446 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
447 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
448 } else {
449 /* odd B, even A, repeat */
450 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
451 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
452 }
453 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01);
454 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01);
455 split = 1;
456 }
457
458 /* irqs */
459 saa_writeb(SAA7134_REGION_ENABLE, task);
460 saa_writel(SAA7134_IRQ1, irq);
461 saa_andorl(SAA7134_MAIN_CTRL,
462 SAA7134_MAIN_CTRL_TE0 |
463 SAA7134_MAIN_CTRL_TE1 |
464 SAA7134_MAIN_CTRL_TE2 |
465 SAA7134_MAIN_CTRL_TE3 |
466 SAA7134_MAIN_CTRL_TE4 |
467 SAA7134_MAIN_CTRL_TE5 |
468 SAA7134_MAIN_CTRL_TE6,
469 ctrl);
470 core_dbg("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
471 task, ctrl, irq, split ? "no" : "yes");
472
473 return 0;
474 }
475
476 /* ------------------------------------------------------------------ */
477 /* IRQ handler + helpers */
478
479 static char *irqbits[] = {
480 "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
481 "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
482 "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
483 "GPIO16", "GPIO18", "GPIO22", "GPIO23"
484 };
485 #define IRQBITS ARRAY_SIZE(irqbits)
486
print_irqstatus(struct saa7134_dev * dev,int loop,unsigned long report,unsigned long status)487 static void print_irqstatus(struct saa7134_dev *dev, int loop,
488 unsigned long report, unsigned long status)
489 {
490 unsigned int i;
491
492 irq_dbg(1, "[%d,%ld]: r=0x%lx s=0x%02lx",
493 loop, jiffies, report, status);
494 for (i = 0; i < IRQBITS; i++) {
495 if (!(report & (1 << i)))
496 continue;
497 pr_cont(" %s", irqbits[i]);
498 }
499 if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
500 pr_cont(" | RA0=%s,%s,%s,%ld",
501 (status & 0x40) ? "vbi" : "video",
502 (status & 0x20) ? "b" : "a",
503 (status & 0x10) ? "odd" : "even",
504 (status & 0x0f));
505 }
506 pr_cont("\n");
507 }
508
saa7134_irq(int irq,void * dev_id)509 static irqreturn_t saa7134_irq(int irq, void *dev_id)
510 {
511 struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
512 unsigned long report,status;
513 int loop, handled = 0;
514
515 if (dev->insuspend)
516 goto out;
517
518 for (loop = 0; loop < 10; loop++) {
519 report = saa_readl(SAA7134_IRQ_REPORT);
520 status = saa_readl(SAA7134_IRQ_STATUS);
521
522 /* If dmasound support is active and we get a sound report,
523 * mask out the report and let the saa7134-alsa module deal
524 * with it */
525 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
526 (dev->dmasound.priv_data != NULL) )
527 {
528 irq_dbg(2, "preserving DMA sound interrupt\n");
529 report &= ~SAA7134_IRQ_REPORT_DONE_RA3;
530 }
531
532 if (0 == report) {
533 irq_dbg(2, "no (more) work\n");
534 goto out;
535 }
536
537 handled = 1;
538 saa_writel(SAA7134_IRQ_REPORT,report);
539 if (irq_debug)
540 print_irqstatus(dev,loop,report,status);
541
542
543 if ((report & SAA7134_IRQ_REPORT_RDCAP) ||
544 (report & SAA7134_IRQ_REPORT_INTL))
545 saa7134_irq_video_signalchange(dev);
546
547
548 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
549 (status & 0x60) == 0)
550 saa7134_irq_video_done(dev,status);
551
552 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
553 (status & 0x40) == 0x40)
554 saa7134_irq_vbi_done(dev,status);
555
556 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
557 card_has_mpeg(dev)) {
558 if (dev->mops->irq_ts_done != NULL)
559 dev->mops->irq_ts_done(dev, status);
560 else
561 saa7134_irq_ts_done(dev, status);
562 }
563
564 if (report & SAA7134_IRQ_REPORT_GPIO16) {
565 switch (dev->has_remote) {
566 case SAA7134_REMOTE_GPIO:
567 if (!dev->remote)
568 break;
569 if (dev->remote->mask_keydown & 0x10000) {
570 saa7134_input_irq(dev);
571 }
572 break;
573
574 case SAA7134_REMOTE_I2C:
575 break; /* FIXME: invoke I2C get_key() */
576
577 default: /* GPIO16 not used by IR remote */
578 break;
579 }
580 }
581
582 if (report & SAA7134_IRQ_REPORT_GPIO18) {
583 switch (dev->has_remote) {
584 case SAA7134_REMOTE_GPIO:
585 if (!dev->remote)
586 break;
587 if ((dev->remote->mask_keydown & 0x40000) ||
588 (dev->remote->mask_keyup & 0x40000)) {
589 saa7134_input_irq(dev);
590 }
591 break;
592
593 case SAA7134_REMOTE_I2C:
594 break; /* FIXME: invoke I2C get_key() */
595
596 default: /* GPIO18 not used by IR remote */
597 break;
598 }
599 }
600 }
601
602 if (10 == loop) {
603 print_irqstatus(dev,loop,report,status);
604 if (report & SAA7134_IRQ_REPORT_PE) {
605 /* disable all parity error */
606 pr_warn("%s/irq: looping -- clearing PE (parity error!) enable bit\n",
607 dev->name);
608 saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
609 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
610 /* disable gpio16 IRQ */
611 pr_warn("%s/irq: looping -- clearing GPIO16 enable bit\n",
612 dev->name);
613 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_P);
614 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16_N);
615 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
616 /* disable gpio18 IRQs */
617 pr_warn("%s/irq: looping -- clearing GPIO18 enable bit\n",
618 dev->name);
619 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_P);
620 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18_N);
621 } else {
622 /* disable all irqs */
623 pr_warn("%s/irq: looping -- clearing all enable bits\n",
624 dev->name);
625 saa_writel(SAA7134_IRQ1,0);
626 saa_writel(SAA7134_IRQ2,0);
627 }
628 }
629
630 out:
631 return IRQ_RETVAL(handled);
632 }
633
634 /* ------------------------------------------------------------------ */
635
636 /* early init (no i2c, no irq) */
637
saa7134_hw_enable1(struct saa7134_dev * dev)638 static int saa7134_hw_enable1(struct saa7134_dev *dev)
639 {
640 /* RAM FIFO config */
641 saa_writel(SAA7134_FIFO_SIZE, 0x08070503);
642 saa_writel(SAA7134_THRESHOULD, 0x02020202);
643
644 /* enable audio + video processing */
645 saa_writel(SAA7134_MAIN_CTRL,
646 SAA7134_MAIN_CTRL_VPLLE |
647 SAA7134_MAIN_CTRL_APLLE |
648 SAA7134_MAIN_CTRL_EXOSC |
649 SAA7134_MAIN_CTRL_EVFE1 |
650 SAA7134_MAIN_CTRL_EVFE2 |
651 SAA7134_MAIN_CTRL_ESFE |
652 SAA7134_MAIN_CTRL_EBDAC);
653
654 /*
655 * Initialize OSS _after_ enabling audio clock PLL and audio processing.
656 * OSS initialization writes to registers via the audio DSP; these
657 * writes will fail unless the audio clock has been started. At worst,
658 * audio will not work.
659 */
660
661 /* enable peripheral devices */
662 saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
663
664 /* set vertical line numbering start (vbi needs this) */
665 saa_writeb(SAA7134_SOURCE_TIMING2, 0x20);
666
667 return 0;
668 }
669
saa7134_hwinit1(struct saa7134_dev * dev)670 static int saa7134_hwinit1(struct saa7134_dev *dev)
671 {
672 core_dbg("hwinit1\n");
673
674 saa_writel(SAA7134_IRQ1, 0);
675 saa_writel(SAA7134_IRQ2, 0);
676
677 /* Clear any stale IRQ reports */
678 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
679
680 mutex_init(&dev->lock);
681 spin_lock_init(&dev->slock);
682
683 saa7134_track_gpio(dev,"pre-init");
684 saa7134_video_init1(dev);
685 saa7134_vbi_init1(dev);
686 if (card_has_mpeg(dev))
687 saa7134_ts_init1(dev);
688 saa7134_input_init1(dev);
689
690 saa7134_hw_enable1(dev);
691
692 return 0;
693 }
694
695 /* late init (with i2c + irq) */
saa7134_hw_enable2(struct saa7134_dev * dev)696 static int saa7134_hw_enable2(struct saa7134_dev *dev)
697 {
698
699 unsigned int irq2_mask;
700
701 /* enable IRQ's */
702 irq2_mask =
703 SAA7134_IRQ2_INTE_DEC3 |
704 SAA7134_IRQ2_INTE_DEC2 |
705 SAA7134_IRQ2_INTE_DEC1 |
706 SAA7134_IRQ2_INTE_DEC0 |
707 SAA7134_IRQ2_INTE_PE |
708 SAA7134_IRQ2_INTE_AR;
709
710 if (dev->has_remote == SAA7134_REMOTE_GPIO && dev->remote) {
711 if (dev->remote->mask_keydown & 0x10000)
712 irq2_mask |= SAA7134_IRQ2_INTE_GPIO16_N;
713 else { /* Allow enabling both IRQ edge triggers */
714 if (dev->remote->mask_keydown & 0x40000)
715 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_P;
716 if (dev->remote->mask_keyup & 0x40000)
717 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18_N;
718 }
719 }
720
721 if (dev->has_remote == SAA7134_REMOTE_I2C) {
722 request_module("ir-kbd-i2c");
723 }
724
725 saa_writel(SAA7134_IRQ1, 0);
726 saa_writel(SAA7134_IRQ2, irq2_mask);
727
728 return 0;
729 }
730
saa7134_hwinit2(struct saa7134_dev * dev)731 static int saa7134_hwinit2(struct saa7134_dev *dev)
732 {
733
734 core_dbg("hwinit2\n");
735
736 saa7134_video_init2(dev);
737 saa7134_tvaudio_init2(dev);
738
739 saa7134_hw_enable2(dev);
740
741 return 0;
742 }
743
744
745 /* shutdown */
saa7134_hwfini(struct saa7134_dev * dev)746 static int saa7134_hwfini(struct saa7134_dev *dev)
747 {
748 core_dbg("hwfini\n");
749
750 if (card_has_mpeg(dev))
751 saa7134_ts_fini(dev);
752 saa7134_input_fini(dev);
753 saa7134_vbi_fini(dev);
754 saa7134_tvaudio_fini(dev);
755 saa7134_video_fini(dev);
756 return 0;
757 }
758
must_configure_manually(int has_eeprom)759 static void must_configure_manually(int has_eeprom)
760 {
761 unsigned int i,p;
762
763 if (!has_eeprom)
764 pr_warn("saa7134: <rant>\n"
765 "saa7134: Congratulations! Your TV card vendor saved a few\n"
766 "saa7134: cents for a eeprom, thus your pci board has no\n"
767 "saa7134: subsystem ID and I can't identify it automatically\n"
768 "saa7134: </rant>\n"
769 "saa7134: I feel better now. Ok, here are the good news:\n"
770 "saa7134: You can use the card=<nr> insmod option to specify\n"
771 "saa7134: which board do you have. The list:\n");
772 else
773 pr_warn("saa7134: Board is currently unknown. You might try to use the card=<nr>\n"
774 "saa7134: insmod option to specify which board do you have, but this is\n"
775 "saa7134: somewhat risky, as might damage your card. It is better to ask\n"
776 "saa7134: for support at linux-media@vger.kernel.org.\n"
777 "saa7134: The supported cards are:\n");
778
779 for (i = 0; i < saa7134_bcount; i++) {
780 pr_warn("saa7134: card=%d -> %-40.40s",
781 i,saa7134_boards[i].name);
782 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
783 if (saa7134_pci_tbl[p].driver_data != i)
784 continue;
785 pr_cont(" %04x:%04x",
786 saa7134_pci_tbl[p].subvendor,
787 saa7134_pci_tbl[p].subdevice);
788 }
789 pr_cont("\n");
790 }
791 }
792
saa7134_unregister_media_device(struct saa7134_dev * dev)793 static void saa7134_unregister_media_device(struct saa7134_dev *dev)
794 {
795
796 #ifdef CONFIG_MEDIA_CONTROLLER
797 if (!dev->media_dev)
798 return;
799 media_device_unregister(dev->media_dev);
800 media_device_cleanup(dev->media_dev);
801 kfree(dev->media_dev);
802 dev->media_dev = NULL;
803 #endif
804 }
805
saa7134_media_release(struct saa7134_dev * dev)806 static void saa7134_media_release(struct saa7134_dev *dev)
807 {
808 #ifdef CONFIG_MEDIA_CONTROLLER
809 int i;
810
811 for (i = 0; i < SAA7134_INPUT_MAX + 1; i++)
812 media_device_unregister_entity(&dev->input_ent[i]);
813 #endif
814 }
815
816 #if defined(CONFIG_MEDIA_CONTROLLER)
saa7134_create_entities(struct saa7134_dev * dev)817 static void saa7134_create_entities(struct saa7134_dev *dev)
818 {
819 int ret, i;
820 struct media_entity *entity;
821 struct media_entity *decoder = NULL;
822
823 /* Check if it is using an external analog TV demod */
824 media_device_for_each_entity(entity, dev->media_dev) {
825 if (entity->function == MEDIA_ENT_F_ATV_DECODER) {
826 decoder = entity;
827 break;
828 }
829 }
830
831 /*
832 * saa713x is not using an external ATV demod.
833 * Register the internal one
834 */
835 if (!decoder) {
836 dev->demod.name = "saa713x";
837 dev->demod_pad[SAA7134_PAD_IF_INPUT].flags = MEDIA_PAD_FL_SINK;
838 dev->demod_pad[SAA7134_PAD_IF_INPUT].sig_type = PAD_SIGNAL_ANALOG;
839 dev->demod_pad[SAA7134_PAD_VID_OUT].flags = MEDIA_PAD_FL_SOURCE;
840 dev->demod_pad[SAA7134_PAD_VID_OUT].sig_type = PAD_SIGNAL_DV;
841 dev->demod.function = MEDIA_ENT_F_ATV_DECODER;
842
843 ret = media_entity_pads_init(&dev->demod, SAA7134_NUM_PADS,
844 dev->demod_pad);
845 if (ret < 0)
846 pr_err("failed to initialize demod pad!\n");
847
848 ret = media_device_register_entity(dev->media_dev, &dev->demod);
849 if (ret < 0)
850 pr_err("failed to register demod entity!\n");
851
852 dev->decoder = &dev->demod;
853 } else {
854 dev->decoder = decoder;
855 }
856
857 /* Initialize Video, VBI and Radio pads */
858 dev->video_pad.flags = MEDIA_PAD_FL_SINK;
859 ret = media_entity_pads_init(&dev->video_dev->entity, 1,
860 &dev->video_pad);
861 if (ret < 0)
862 pr_err("failed to initialize video media entity!\n");
863
864 dev->vbi_pad.flags = MEDIA_PAD_FL_SINK;
865 ret = media_entity_pads_init(&dev->vbi_dev->entity, 1,
866 &dev->vbi_pad);
867 if (ret < 0)
868 pr_err("failed to initialize vbi media entity!\n");
869
870 /* Create entities for each input connector */
871 for (i = 0; i < SAA7134_INPUT_MAX; i++) {
872 struct media_entity *ent = &dev->input_ent[i];
873 struct saa7134_input *in = &card_in(dev, i);
874
875 if (in->type == SAA7134_NO_INPUT)
876 break;
877
878 /* This input uses the S-Video connector */
879 if (in->type == SAA7134_INPUT_COMPOSITE_OVER_SVIDEO)
880 continue;
881
882 ent->name = saa7134_input_name[in->type];
883 ent->flags = MEDIA_ENT_FL_CONNECTOR;
884 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
885
886 switch (in->type) {
887 case SAA7134_INPUT_COMPOSITE:
888 case SAA7134_INPUT_COMPOSITE0:
889 case SAA7134_INPUT_COMPOSITE1:
890 case SAA7134_INPUT_COMPOSITE2:
891 case SAA7134_INPUT_COMPOSITE3:
892 case SAA7134_INPUT_COMPOSITE4:
893 ent->function = MEDIA_ENT_F_CONN_COMPOSITE;
894 break;
895 case SAA7134_INPUT_SVIDEO:
896 case SAA7134_INPUT_SVIDEO0:
897 case SAA7134_INPUT_SVIDEO1:
898 ent->function = MEDIA_ENT_F_CONN_SVIDEO;
899 break;
900 default:
901 /*
902 * SAA7134_INPUT_TV and SAA7134_INPUT_TV_MONO.
903 *
904 * Please notice that neither SAA7134_INPUT_MUTE or
905 * SAA7134_INPUT_RADIO are defined at
906 * saa7134_board.input.
907 */
908 ent->function = MEDIA_ENT_F_CONN_RF;
909 break;
910 }
911
912 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
913 if (ret < 0)
914 pr_err("failed to initialize input pad[%d]!\n", i);
915
916 ret = media_device_register_entity(dev->media_dev, ent);
917 if (ret < 0)
918 pr_err("failed to register input entity %d!\n", i);
919 }
920
921 /* Create input for Radio RF connector */
922 if (card_has_radio(dev)) {
923 struct saa7134_input *in = &saa7134_boards[dev->board].radio;
924 struct media_entity *ent = &dev->input_ent[i];
925
926 ent->name = saa7134_input_name[in->type];
927 ent->flags = MEDIA_ENT_FL_CONNECTOR;
928 dev->input_pad[i].flags = MEDIA_PAD_FL_SOURCE;
929 ent->function = MEDIA_ENT_F_CONN_RF;
930
931 ret = media_entity_pads_init(ent, 1, &dev->input_pad[i]);
932 if (ret < 0)
933 pr_err("failed to initialize input pad[%d]!\n", i);
934
935 ret = media_device_register_entity(dev->media_dev, ent);
936 if (ret < 0)
937 pr_err("failed to register input entity %d!\n", i);
938 }
939 }
940 #endif
941
vdev_init(struct saa7134_dev * dev,struct video_device * template,char * type)942 static struct video_device *vdev_init(struct saa7134_dev *dev,
943 struct video_device *template,
944 char *type)
945 {
946 struct video_device *vfd;
947
948 vfd = video_device_alloc();
949 if (NULL == vfd)
950 return NULL;
951 *vfd = *template;
952 vfd->v4l2_dev = &dev->v4l2_dev;
953 vfd->release = video_device_release;
954 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
955 dev->name, type, saa7134_boards[dev->board].name);
956 video_set_drvdata(vfd, dev);
957 return vfd;
958 }
959
saa7134_unregister_video(struct saa7134_dev * dev)960 static void saa7134_unregister_video(struct saa7134_dev *dev)
961 {
962 saa7134_media_release(dev);
963
964 if (dev->video_dev) {
965 if (video_is_registered(dev->video_dev))
966 vb2_video_unregister_device(dev->video_dev);
967 else
968 video_device_release(dev->video_dev);
969 dev->video_dev = NULL;
970 }
971 if (dev->vbi_dev) {
972 if (video_is_registered(dev->vbi_dev))
973 vb2_video_unregister_device(dev->vbi_dev);
974 else
975 video_device_release(dev->vbi_dev);
976 dev->vbi_dev = NULL;
977 }
978 if (dev->radio_dev) {
979 if (video_is_registered(dev->radio_dev))
980 vb2_video_unregister_device(dev->radio_dev);
981 else
982 video_device_release(dev->radio_dev);
983 dev->radio_dev = NULL;
984 }
985 }
986
mpeg_ops_attach(struct saa7134_mpeg_ops * ops,struct saa7134_dev * dev)987 static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
988 struct saa7134_dev *dev)
989 {
990 int err;
991
992 if (NULL != dev->mops)
993 return;
994 if (saa7134_boards[dev->board].mpeg != ops->type)
995 return;
996 err = ops->init(dev);
997 if (0 != err)
998 return;
999 dev->mops = ops;
1000 }
1001
mpeg_ops_detach(struct saa7134_mpeg_ops * ops,struct saa7134_dev * dev)1002 static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
1003 struct saa7134_dev *dev)
1004 {
1005 if (NULL == dev->mops)
1006 return;
1007 if (dev->mops != ops)
1008 return;
1009 dev->mops->fini(dev);
1010 dev->mops = NULL;
1011 }
1012
saa7134_initdev(struct pci_dev * pci_dev,const struct pci_device_id * pci_id)1013 static int saa7134_initdev(struct pci_dev *pci_dev,
1014 const struct pci_device_id *pci_id)
1015 {
1016 struct saa7134_dev *dev;
1017 struct saa7134_mpeg_ops *mops;
1018 int err;
1019
1020 if (saa7134_devcount == SAA7134_MAXBOARDS)
1021 return -ENOMEM;
1022
1023 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1024 if (NULL == dev)
1025 return -ENOMEM;
1026
1027 dev->nr = saa7134_devcount;
1028 sprintf(dev->name, "saa%x[%d]", pci_dev->device, dev->nr);
1029
1030 #ifdef CONFIG_MEDIA_CONTROLLER
1031 dev->media_dev = kzalloc(sizeof(*dev->media_dev), GFP_KERNEL);
1032 if (!dev->media_dev) {
1033 err = -ENOMEM;
1034 goto fail0;
1035 }
1036 media_device_pci_init(dev->media_dev, pci_dev, dev->name);
1037 dev->v4l2_dev.mdev = dev->media_dev;
1038 #endif
1039
1040 err = v4l2_device_register(&pci_dev->dev, &dev->v4l2_dev);
1041 if (err)
1042 goto fail0;
1043
1044 /* pci init */
1045 dev->pci = pci_dev;
1046 if (pci_enable_device(pci_dev)) {
1047 err = -EIO;
1048 goto fail1;
1049 }
1050
1051 /* pci quirks */
1052 if (pci_pci_problems) {
1053 if (pci_pci_problems & PCIPCI_TRITON)
1054 pr_info("%s: quirk: PCIPCI_TRITON\n", dev->name);
1055 if (pci_pci_problems & PCIPCI_NATOMA)
1056 pr_info("%s: quirk: PCIPCI_NATOMA\n", dev->name);
1057 if (pci_pci_problems & PCIPCI_VIAETBF)
1058 pr_info("%s: quirk: PCIPCI_VIAETBF\n", dev->name);
1059 if (pci_pci_problems & PCIPCI_VSFX)
1060 pr_info("%s: quirk: PCIPCI_VSFX\n", dev->name);
1061 #ifdef PCIPCI_ALIMAGIK
1062 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
1063 pr_info("%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
1064 dev->name);
1065 latency = 0x0A;
1066 }
1067 #endif
1068 if (pci_pci_problems & (PCIPCI_FAIL|PCIAGP_FAIL)) {
1069 pr_info("%s: quirk: this driver and your chipset may not work together in overlay mode.\n",
1070 dev->name);
1071 if (!saa7134_no_overlay) {
1072 pr_info("%s: quirk: overlay mode will be disabled.\n",
1073 dev->name);
1074 saa7134_no_overlay = 1;
1075 } else {
1076 pr_info("%s: quirk: overlay mode will be forced. Use this option at your own risk.\n",
1077 dev->name);
1078 }
1079 }
1080 }
1081 if (UNSET != latency) {
1082 pr_info("%s: setting pci latency timer to %d\n",
1083 dev->name,latency);
1084 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
1085 }
1086
1087 /* print pci info */
1088 dev->pci_rev = pci_dev->revision;
1089 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
1090 pr_info("%s: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
1091 dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
1092 dev->pci_lat,
1093 (unsigned long long)pci_resource_start(pci_dev, 0));
1094 pci_set_master(pci_dev);
1095 err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32));
1096 if (err) {
1097 pr_warn("%s: Oops: no 32bit PCI DMA ???\n", dev->name);
1098 goto fail1;
1099 }
1100
1101 /* board config */
1102 dev->board = pci_id->driver_data;
1103 if ((unsigned)card[dev->nr] < saa7134_bcount)
1104 dev->board = card[dev->nr];
1105 if (SAA7134_BOARD_UNKNOWN == dev->board)
1106 must_configure_manually(0);
1107 else if (SAA7134_BOARD_NOAUTO == dev->board) {
1108 must_configure_manually(1);
1109 dev->board = SAA7134_BOARD_UNKNOWN;
1110 }
1111 dev->autodetected = card[dev->nr] != dev->board;
1112 dev->tuner_type = saa7134_boards[dev->board].tuner_type;
1113 dev->tuner_addr = saa7134_boards[dev->board].tuner_addr;
1114 dev->radio_type = saa7134_boards[dev->board].radio_type;
1115 dev->radio_addr = saa7134_boards[dev->board].radio_addr;
1116 dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
1117 if (UNSET != tuner[dev->nr])
1118 dev->tuner_type = tuner[dev->nr];
1119 pr_info("%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1120 dev->name,pci_dev->subsystem_vendor,
1121 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
1122 dev->board, dev->autodetected ?
1123 "autodetected" : "insmod option");
1124
1125 /* get mmio */
1126 if (!request_mem_region(pci_resource_start(pci_dev,0),
1127 pci_resource_len(pci_dev,0),
1128 dev->name)) {
1129 err = -EBUSY;
1130 pr_err("%s: can't get MMIO memory @ 0x%llx\n",
1131 dev->name,(unsigned long long)pci_resource_start(pci_dev,0));
1132 goto fail1;
1133 }
1134 dev->lmmio = ioremap(pci_resource_start(pci_dev, 0),
1135 pci_resource_len(pci_dev, 0));
1136 dev->bmmio = (__u8 __iomem *)dev->lmmio;
1137 if (NULL == dev->lmmio) {
1138 err = -EIO;
1139 pr_err("%s: can't ioremap() MMIO memory\n",
1140 dev->name);
1141 goto fail2;
1142 }
1143
1144 /* initialize hardware #1 */
1145 saa7134_board_init1(dev);
1146 saa7134_hwinit1(dev);
1147
1148 /* get irq */
1149 err = request_irq(pci_dev->irq, saa7134_irq,
1150 IRQF_SHARED, dev->name, dev);
1151 if (err < 0) {
1152 pr_err("%s: can't get IRQ %d\n",
1153 dev->name,pci_dev->irq);
1154 goto fail3;
1155 }
1156
1157 /* wait a bit, register i2c bus */
1158 msleep(100);
1159 saa7134_i2c_register(dev);
1160 saa7134_board_init2(dev);
1161
1162 saa7134_hwinit2(dev);
1163
1164 /* load i2c helpers */
1165 if (card_is_empress(dev)) {
1166 dev->empress_sd =
1167 v4l2_i2c_new_subdev(&dev->v4l2_dev, &dev->i2c_adap,
1168 "saa6752hs",
1169 saa7134_boards[dev->board].empress_addr, NULL);
1170
1171 if (dev->empress_sd)
1172 dev->empress_sd->grp_id = GRP_EMPRESS;
1173 }
1174
1175 if (saa7134_boards[dev->board].rds_addr) {
1176 struct v4l2_subdev *sd;
1177
1178 sd = v4l2_i2c_new_subdev(&dev->v4l2_dev,
1179 &dev->i2c_adap, "saa6588",
1180 0, I2C_ADDRS(saa7134_boards[dev->board].rds_addr));
1181 if (sd) {
1182 pr_info("%s: found RDS decoder\n", dev->name);
1183 dev->has_rds = 1;
1184 }
1185 }
1186
1187 mutex_lock(&saa7134_devlist_lock);
1188 list_for_each_entry(mops, &mops_list, next)
1189 mpeg_ops_attach(mops, dev);
1190 list_add_tail(&dev->devlist, &saa7134_devlist);
1191 mutex_unlock(&saa7134_devlist_lock);
1192
1193 /* check for signal */
1194 saa7134_irq_video_signalchange(dev);
1195
1196 if (TUNER_ABSENT != dev->tuner_type)
1197 saa_call_all(dev, core, s_power, 0);
1198
1199 /* register v4l devices */
1200 if (saa7134_no_overlay > 0)
1201 pr_info("%s: Overlay support disabled.\n", dev->name);
1202
1203 dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
1204 dev->video_dev->ctrl_handler = &dev->ctrl_handler;
1205 dev->video_dev->lock = &dev->lock;
1206 dev->video_dev->queue = &dev->video_vbq;
1207 dev->video_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1208 V4L2_CAP_VIDEO_CAPTURE;
1209 if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1210 dev->video_dev->device_caps |= V4L2_CAP_TUNER;
1211
1212 if (saa7134_no_overlay <= 0)
1213 dev->video_dev->device_caps |= V4L2_CAP_VIDEO_OVERLAY;
1214
1215 err = video_register_device(dev->video_dev,VFL_TYPE_VIDEO,
1216 video_nr[dev->nr]);
1217 if (err < 0) {
1218 pr_info("%s: can't register video device\n",
1219 dev->name);
1220 goto fail4;
1221 }
1222 pr_info("%s: registered device %s [v4l2]\n",
1223 dev->name, video_device_node_name(dev->video_dev));
1224
1225 dev->vbi_dev = vdev_init(dev, &saa7134_video_template, "vbi");
1226 dev->vbi_dev->ctrl_handler = &dev->ctrl_handler;
1227 dev->vbi_dev->lock = &dev->lock;
1228 dev->vbi_dev->queue = &dev->vbi_vbq;
1229 dev->vbi_dev->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1230 V4L2_CAP_VBI_CAPTURE;
1231 if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1232 dev->vbi_dev->device_caps |= V4L2_CAP_TUNER;
1233
1234 err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
1235 vbi_nr[dev->nr]);
1236 if (err < 0)
1237 goto fail4;
1238 pr_info("%s: registered device %s\n",
1239 dev->name, video_device_node_name(dev->vbi_dev));
1240
1241 if (card_has_radio(dev)) {
1242 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
1243 dev->radio_dev->ctrl_handler = &dev->radio_ctrl_handler;
1244 dev->radio_dev->lock = &dev->lock;
1245 dev->radio_dev->device_caps = V4L2_CAP_RADIO | V4L2_CAP_TUNER;
1246 if (dev->has_rds)
1247 dev->radio_dev->device_caps |= V4L2_CAP_RDS_CAPTURE;
1248 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
1249 radio_nr[dev->nr]);
1250 if (err < 0)
1251 goto fail4;
1252 pr_info("%s: registered device %s\n",
1253 dev->name, video_device_node_name(dev->radio_dev));
1254 }
1255
1256 #ifdef CONFIG_MEDIA_CONTROLLER
1257 saa7134_create_entities(dev);
1258
1259 err = v4l2_mc_create_media_graph(dev->media_dev);
1260 if (err) {
1261 pr_err("failed to create media graph\n");
1262 goto fail4;
1263 }
1264 #endif
1265 /* everything worked */
1266 saa7134_devcount++;
1267
1268 if (saa7134_dmasound_init && !dev->dmasound.priv_data)
1269 saa7134_dmasound_init(dev);
1270
1271 request_submodules(dev);
1272
1273 /*
1274 * Do it at the end, to reduce dynamic configuration changes during
1275 * the device init. Yet, as request_modules() can be async, the
1276 * topology will likely change after load the saa7134 subdrivers.
1277 */
1278 #ifdef CONFIG_MEDIA_CONTROLLER
1279 err = media_device_register(dev->media_dev);
1280 if (err)
1281 goto fail4;
1282 #endif
1283
1284 return 0;
1285
1286 fail4:
1287 saa7134_unregister_video(dev);
1288 saa7134_i2c_unregister(dev);
1289 free_irq(pci_dev->irq, dev);
1290 fail3:
1291 saa7134_hwfini(dev);
1292 iounmap(dev->lmmio);
1293 fail2:
1294 release_mem_region(pci_resource_start(pci_dev,0),
1295 pci_resource_len(pci_dev,0));
1296 fail1:
1297 v4l2_device_unregister(&dev->v4l2_dev);
1298 fail0:
1299 #ifdef CONFIG_MEDIA_CONTROLLER
1300 kfree(dev->media_dev);
1301 #endif
1302 kfree(dev);
1303 return err;
1304 }
1305
saa7134_finidev(struct pci_dev * pci_dev)1306 static void saa7134_finidev(struct pci_dev *pci_dev)
1307 {
1308 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1309 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1310 struct saa7134_mpeg_ops *mops;
1311
1312 flush_request_submodules(dev);
1313
1314 /* Release DMA sound modules if present */
1315 if (saa7134_dmasound_exit && dev->dmasound.priv_data) {
1316 saa7134_dmasound_exit(dev);
1317 }
1318
1319 /* debugging ... */
1320 if (irq_debug) {
1321 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1322 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1323 print_irqstatus(dev,42,report,status);
1324 }
1325
1326 /* disable peripheral devices */
1327 saa_writeb(SAA7134_SPECIAL_MODE,0);
1328
1329 /* shutdown hardware */
1330 saa_writel(SAA7134_IRQ1,0);
1331 saa_writel(SAA7134_IRQ2,0);
1332 saa_writel(SAA7134_MAIN_CTRL,0);
1333
1334 /* shutdown subsystems */
1335 saa7134_hwfini(dev);
1336
1337 /* unregister */
1338 mutex_lock(&saa7134_devlist_lock);
1339 list_del(&dev->devlist);
1340 list_for_each_entry(mops, &mops_list, next)
1341 mpeg_ops_detach(mops, dev);
1342 mutex_unlock(&saa7134_devlist_lock);
1343 saa7134_devcount--;
1344
1345 saa7134_i2c_unregister(dev);
1346 saa7134_unregister_video(dev);
1347
1348
1349 /* the DMA sound modules should be unloaded before reaching
1350 this, but just in case they are still present... */
1351 if (dev->dmasound.priv_data != NULL) {
1352 free_irq(pci_dev->irq, &dev->dmasound);
1353 dev->dmasound.priv_data = NULL;
1354 }
1355
1356
1357 /* release resources */
1358 free_irq(pci_dev->irq, dev);
1359 iounmap(dev->lmmio);
1360 release_mem_region(pci_resource_start(pci_dev,0),
1361 pci_resource_len(pci_dev,0));
1362
1363 v4l2_device_unregister(&dev->v4l2_dev);
1364
1365 saa7134_unregister_media_device(dev);
1366
1367 /* free memory */
1368 kfree(dev);
1369 }
1370
1371 /* resends a current buffer in queue after resume */
saa7134_buffer_requeue(struct saa7134_dev * dev,struct saa7134_dmaqueue * q)1372 static int __maybe_unused saa7134_buffer_requeue(struct saa7134_dev *dev,
1373 struct saa7134_dmaqueue *q)
1374 {
1375 struct saa7134_buf *buf, *next;
1376
1377 assert_spin_locked(&dev->slock);
1378
1379 buf = q->curr;
1380 next = buf;
1381 core_dbg("buffer_requeue\n");
1382
1383 if (!buf)
1384 return 0;
1385
1386 core_dbg("buffer_requeue : resending active buffer\n");
1387
1388 if (!list_empty(&q->queue))
1389 next = list_entry(q->queue.next, struct saa7134_buf,
1390 entry);
1391 buf->activate(dev, buf, next);
1392
1393 return 0;
1394 }
1395
saa7134_suspend(struct device * dev_d)1396 static int __maybe_unused saa7134_suspend(struct device *dev_d)
1397 {
1398 struct pci_dev *pci_dev = to_pci_dev(dev_d);
1399 struct v4l2_device *v4l2_dev = pci_get_drvdata(pci_dev);
1400 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1401
1402 /* disable overlay - apps should enable it explicitly on resume*/
1403 dev->ovenable = 0;
1404
1405 /* Disable interrupts, DMA, and rest of the chip*/
1406 saa_writel(SAA7134_IRQ1, 0);
1407 saa_writel(SAA7134_IRQ2, 0);
1408 saa_writel(SAA7134_MAIN_CTRL, 0);
1409
1410 dev->insuspend = 1;
1411 synchronize_irq(pci_dev->irq);
1412
1413 /* ACK interrupts once more, just in case,
1414 since the IRQ handler won't ack them anymore*/
1415
1416 saa_writel(SAA7134_IRQ_REPORT, saa_readl(SAA7134_IRQ_REPORT));
1417
1418 /* Disable timeout timers - if we have active buffers, we will
1419 fill them on resume*/
1420
1421 del_timer(&dev->video_q.timeout);
1422 del_timer(&dev->vbi_q.timeout);
1423 del_timer(&dev->ts_q.timeout);
1424
1425 if (dev->remote && dev->remote->dev->users)
1426 saa7134_ir_close(dev->remote->dev);
1427
1428 return 0;
1429 }
1430
saa7134_resume(struct device * dev_d)1431 static int __maybe_unused saa7134_resume(struct device *dev_d)
1432 {
1433 struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1434 struct saa7134_dev *dev = container_of(v4l2_dev, struct saa7134_dev, v4l2_dev);
1435 unsigned long flags;
1436
1437 /* Do things that are done in saa7134_initdev ,
1438 except of initializing memory structures.*/
1439
1440 saa7134_board_init1(dev);
1441
1442 /* saa7134_hwinit1 */
1443 if (saa7134_boards[dev->board].video_out)
1444 saa7134_videoport_init(dev);
1445 if (card_has_mpeg(dev))
1446 saa7134_ts_init_hw(dev);
1447 if (dev->remote && dev->remote->dev->users)
1448 saa7134_ir_open(dev->remote->dev);
1449 saa7134_hw_enable1(dev);
1450
1451 msleep(100);
1452
1453 saa7134_board_init2(dev);
1454
1455 /*saa7134_hwinit2*/
1456 saa7134_set_tvnorm_hw(dev);
1457 saa7134_tvaudio_setmute(dev);
1458 saa7134_tvaudio_setvolume(dev, dev->ctl_volume);
1459 saa7134_tvaudio_init(dev);
1460 saa7134_enable_i2s(dev);
1461 saa7134_hw_enable2(dev);
1462
1463 saa7134_irq_video_signalchange(dev);
1464
1465 /*resume unfinished buffer(s)*/
1466 spin_lock_irqsave(&dev->slock, flags);
1467 saa7134_buffer_requeue(dev, &dev->video_q);
1468 saa7134_buffer_requeue(dev, &dev->vbi_q);
1469 saa7134_buffer_requeue(dev, &dev->ts_q);
1470
1471 /* FIXME: Disable DMA audio sound - temporary till proper support
1472 is implemented*/
1473
1474 dev->dmasound.dma_running = 0;
1475
1476 /* start DMA now*/
1477 dev->insuspend = 0;
1478 smp_wmb();
1479 saa7134_set_dmabits(dev);
1480 spin_unlock_irqrestore(&dev->slock, flags);
1481
1482 return 0;
1483 }
1484
1485 /* ----------------------------------------------------------- */
1486
saa7134_ts_register(struct saa7134_mpeg_ops * ops)1487 int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1488 {
1489 struct saa7134_dev *dev;
1490
1491 mutex_lock(&saa7134_devlist_lock);
1492 list_for_each_entry(dev, &saa7134_devlist, devlist)
1493 mpeg_ops_attach(ops, dev);
1494 list_add_tail(&ops->next,&mops_list);
1495 mutex_unlock(&saa7134_devlist_lock);
1496 return 0;
1497 }
1498
saa7134_ts_unregister(struct saa7134_mpeg_ops * ops)1499 void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1500 {
1501 struct saa7134_dev *dev;
1502
1503 mutex_lock(&saa7134_devlist_lock);
1504 list_del(&ops->next);
1505 list_for_each_entry(dev, &saa7134_devlist, devlist)
1506 mpeg_ops_detach(ops, dev);
1507 mutex_unlock(&saa7134_devlist_lock);
1508 }
1509
1510 EXPORT_SYMBOL(saa7134_ts_register);
1511 EXPORT_SYMBOL(saa7134_ts_unregister);
1512
1513 /* ----------------------------------------------------------- */
1514
1515 static SIMPLE_DEV_PM_OPS(saa7134_pm_ops, saa7134_suspend, saa7134_resume);
1516
1517 static struct pci_driver saa7134_pci_driver = {
1518 .name = "saa7134",
1519 .id_table = saa7134_pci_tbl,
1520 .probe = saa7134_initdev,
1521 .remove = saa7134_finidev,
1522 .driver.pm = &saa7134_pm_ops,
1523 };
1524
saa7134_init(void)1525 static int __init saa7134_init(void)
1526 {
1527 INIT_LIST_HEAD(&saa7134_devlist);
1528 pr_info("saa7130/34: v4l2 driver version %s loaded\n",
1529 SAA7134_VERSION);
1530 return pci_register_driver(&saa7134_pci_driver);
1531 }
1532
saa7134_fini(void)1533 static void __exit saa7134_fini(void)
1534 {
1535 pci_unregister_driver(&saa7134_pci_driver);
1536 }
1537
1538 module_init(saa7134_init);
1539 module_exit(saa7134_fini);
1540
1541 /* ----------------------------------------------------------- */
1542
1543 EXPORT_SYMBOL(saa7134_set_gpio);
1544 EXPORT_SYMBOL(saa7134_boards);
1545
1546 /* ----------------- for the DMA sound modules --------------- */
1547
1548 EXPORT_SYMBOL(saa7134_dmasound_init);
1549 EXPORT_SYMBOL(saa7134_dmasound_exit);
1550 EXPORT_SYMBOL(saa7134_pgtable_free);
1551 EXPORT_SYMBOL(saa7134_pgtable_build);
1552 EXPORT_SYMBOL(saa7134_pgtable_alloc);
1553 EXPORT_SYMBOL(saa7134_set_dmabits);
1554