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V4L/DVB (3543): Fix Makefile to adapt to bt8xx/ conversion
[mirror_ubuntu-artful-kernel.git] / drivers / media / video / saa7134 / saa7134-core.c
CommitLineData
1da177e4 1/*
1da177e4
LT		 2 *
3 * device driver for philips saa7134 based TV cards
4 * driver core
5 *
6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 */
22
23#include <linux/config.h>
24#include <linux/init.h>
25#include <linux/list.h>
26#include <linux/module.h>
27#include <linux/moduleparam.h>
28#include <linux/kernel.h>
29#include <linux/slab.h>
30#include <linux/kmod.h>
31#include <linux/sound.h>
32#include <linux/interrupt.h>
33#include <linux/delay.h>
1e4baed3 34#include <linux/mutex.h>
1da177e4
LT		 35
36#include "saa7134-reg.h"
37#include "saa7134.h"
38
39MODULE_DESCRIPTION("v4l2 driver module for saa7130/34 based TV cards");
40MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]");
41MODULE_LICENSE("GPL");
42
43/* ------------------------------------------------------------------ */
44
45static unsigned int irq_debug = 0;
46module_param(irq_debug, int, 0644);
47MODULE_PARM_DESC(irq_debug,"enable debug messages [IRQ handler]");
48
49static unsigned int core_debug = 0;
50module_param(core_debug, int, 0644);
51MODULE_PARM_DESC(core_debug,"enable debug messages [core]");
52
53static unsigned int gpio_tracking = 0;
54module_param(gpio_tracking, int, 0644);
55MODULE_PARM_DESC(gpio_tracking,"enable debug messages [gpio]");
56
bd15eba3 57static unsigned int alsa = 0;
4aabf633
RC		 58module_param(alsa, int, 0644);
59MODULE_PARM_DESC(alsa,"enable ALSA DMA sound [dmasound]");
60
61static unsigned int oss = 0;
62module_param(oss, int, 0644);
63MODULE_PARM_DESC(oss,"enable OSS DMA sound [dmasound]");
bd15eba3 64
1da177e4
LT		 65static unsigned int latency = UNSET;
66module_param(latency, int, 0444);
67MODULE_PARM_DESC(latency,"pci latency timer");
68
9050d942
MCC		 69static int no_overlay=-1;
70module_param(no_overlay, int, 0444);
71MODULE_PARM_DESC(no_overlay,"allow override overlay default (0 disables, 1 enables)"
72 " [some VIA/SIS chipsets are known to have problem with overlay]");
73
1da177e4
LT		 74static unsigned int video_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
75static unsigned int vbi_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
76static unsigned int radio_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
1da177e4
LT		 77static unsigned int tuner[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
78static unsigned int card[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET };
79
674434c6 80
1da177e4
LT		 81module_param_array(video_nr, int, NULL, 0444);
82module_param_array(vbi_nr, int, NULL, 0444);
83module_param_array(radio_nr, int, NULL, 0444);
1da177e4
LT		 84module_param_array(tuner, int, NULL, 0444);
85module_param_array(card, int, NULL, 0444);
86
87MODULE_PARM_DESC(video_nr, "video device number");
88MODULE_PARM_DESC(vbi_nr, "vbi device number");
89MODULE_PARM_DESC(radio_nr, "radio device number");
1da177e4
LT		 90MODULE_PARM_DESC(tuner, "tuner type");
91MODULE_PARM_DESC(card, "card type");
92
1e4baed3 93static DEFINE_MUTEX(devlist_lock);
1da177e4
LT		 94LIST_HEAD(saa7134_devlist);
95static LIST_HEAD(mops_list);
96static unsigned int saa7134_devcount;
97
f5b974cb
RC		 98int (*dmasound_init)(struct saa7134_dev *dev);
99int (*dmasound_exit)(struct saa7134_dev *dev);
100
1da177e4
LT		 101#define dprintk(fmt, arg...) if (core_debug) \
102 printk(KERN_DEBUG "%s/core: " fmt, dev->name , ## arg)
103
1da177e4
LT		 104void saa7134_track_gpio(struct saa7134_dev *dev, char *msg)
105{
106 unsigned long mode,status;
107
108 if (!gpio_tracking)
109 return;
110 /* rising SAA7134_GPIO_GPRESCAN reads the status */
111 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,0);
112 saa_andorb(SAA7134_GPIO_GPMODE3,SAA7134_GPIO_GPRESCAN,SAA7134_GPIO_GPRESCAN);
113 mode = saa_readl(SAA7134_GPIO_GPMODE0 >> 2) & 0xfffffff;
114 status = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2) & 0xfffffff;
115 printk(KERN_DEBUG
116 "%s: gpio: mode=0x%07lx in=0x%07lx out=0x%07lx [%s]\n",
117 dev->name, mode, (~mode) & status, mode & status, msg);
118}
119
120/* ------------------------------------------------------------------ */
121
1da177e4
LT		 122
123/* ----------------------------------------------------------- */
124/* delayed request_module */
125
fd1eab73 126#if defined(CONFIG_MODULES) && defined(MODULE)
1da177e4
LT		 127static int need_empress;
128static int need_dvb;
b54134be 129static int need_alsa;
4aabf633 130static int need_oss;
1da177e4
LT		 131
132static int pending_call(struct notifier_block *self, unsigned long state,
133 void *module)
134{
135 if (module != THIS_MODULE || state != MODULE_STATE_LIVE)
136 return NOTIFY_DONE;
137
4ac97914
MCC		 138 if (need_empress)
139 request_module("saa7134-empress");
140 if (need_dvb)
141 request_module("saa7134-dvb");
b54134be
RC		 142 if (need_alsa)
143 request_module("saa7134-alsa");
4aabf633
RC		 144 if (need_oss)
145 request_module("saa7134-oss");
1da177e4
LT		 146 return NOTIFY_DONE;
147}
148
a5ed425c 149static int pending_registered;
1da177e4
LT		 150static struct notifier_block pending_notifier = {
151 .notifier_call = pending_call,
152};
153
154static void request_module_depend(char *name, int *flag)
155{
4aabf633 156 int err;
1da177e4
LT		 157 switch (THIS_MODULE->state) {
158 case MODULE_STATE_COMING:
159 if (!pending_registered) {
4aabf633 160 err = register_module_notifier(&pending_notifier);
1da177e4
LT		 161 pending_registered = 1;
162 }
163 *flag = 1;
164 break;
165 case MODULE_STATE_LIVE:
166 request_module(name);
167 break;
168 default:
169 /* nothing */;
170 break;
171 }
172}
173
174#else
1da177e4 175#define request_module_depend(name,flag)
1da177e4
LT		 176#endif /* CONFIG_MODULES */
177
178/* ------------------------------------------------------------------ */
179
180/* nr of (saa7134-)pages for the given buffer size */
181static int saa7134_buffer_pages(int size)
182{
183 size = PAGE_ALIGN(size);
184 size += PAGE_SIZE; /* for non-page-aligned buffers */
185 size /= 4096;
186 return size;
187}
188
189/* calc max # of buffers from size (must not exceed the 4MB virtual
190 * address space per DMA channel) */
191int saa7134_buffer_count(unsigned int size, unsigned int count)
192{
193 unsigned int maxcount;
194
195 maxcount = 1024 / saa7134_buffer_pages(size);
196 if (count > maxcount)
197 count = maxcount;
198 return count;
199}
200
201int saa7134_buffer_startpage(struct saa7134_buf *buf)
202{
203 return saa7134_buffer_pages(buf->vb.bsize) * buf->vb.i;
204}
205
206unsigned long saa7134_buffer_base(struct saa7134_buf *buf)
207{
208 unsigned long base;
209
210 base = saa7134_buffer_startpage(buf) * 4096;
211 base += buf->vb.dma.sglist[0].offset;
212 return base;
213}
214
215/* ------------------------------------------------------------------ */
216
217int saa7134_pgtable_alloc(struct pci_dev *pci, struct saa7134_pgtable *pt)
218{
4ac97914
MCC		 219 __le32 *cpu;
220 dma_addr_t dma_addr;
1da177e4
LT		 221
222 cpu = pci_alloc_consistent(pci, SAA7134_PGTABLE_SIZE, &dma_addr);
223 if (NULL == cpu)
224 return -ENOMEM;
225 pt->size = SAA7134_PGTABLE_SIZE;
226 pt->cpu = cpu;
227 pt->dma = dma_addr;
228 return 0;
229}
230
231int saa7134_pgtable_build(struct pci_dev *pci, struct saa7134_pgtable *pt,
232 struct scatterlist *list, unsigned int length,
233 unsigned int startpage)
234{
c9c12b79 235 __le32 *ptr;
1da177e4
LT		 236 unsigned int i,p;
237
238 BUG_ON(NULL == pt || NULL == pt->cpu);
239
240 ptr = pt->cpu + startpage;
241 for (i = 0; i < length; i++, list++)
242 for (p = 0; p * 4096 < list->length; p++, ptr++)
a20758fa 243 *ptr = cpu_to_le32(sg_dma_address(list) - list->offset);
1da177e4
LT		 244 return 0;
245}
246
247void saa7134_pgtable_free(struct pci_dev *pci, struct saa7134_pgtable *pt)
248{
249 if (NULL == pt->cpu)
250 return;
251 pci_free_consistent(pci, pt->size, pt->cpu, pt->dma);
252 pt->cpu = NULL;
253}
254
255/* ------------------------------------------------------------------ */
256
257void saa7134_dma_free(struct saa7134_dev *dev,struct saa7134_buf *buf)
258{
ae24601b 259 BUG_ON(in_interrupt());
1da177e4
LT		 260
261 videobuf_waiton(&buf->vb,0,0);
262 videobuf_dma_pci_unmap(dev->pci, &buf->vb.dma);
263 videobuf_dma_free(&buf->vb.dma);
264 buf->vb.state = STATE_NEEDS_INIT;
265}
266
267/* ------------------------------------------------------------------ */
268
269int saa7134_buffer_queue(struct saa7134_dev *dev,
270 struct saa7134_dmaqueue *q,
271 struct saa7134_buf *buf)
272{
273 struct saa7134_buf *next = NULL;
274
275 assert_spin_locked(&dev->slock);
276 dprintk("buffer_queue %p\n",buf);
277 if (NULL == q->curr) {
278 if (!q->need_two) {
279 q->curr = buf;
280 buf->activate(dev,buf,NULL);
281 } else if (list_empty(&q->queue)) {
282 list_add_tail(&buf->vb.queue,&q->queue);
283 buf->vb.state = STATE_QUEUED;
284 } else {
285 next = list_entry(q->queue.next,struct saa7134_buf,
286 vb.queue);
287 q->curr = buf;
288 buf->activate(dev,buf,next);
289 }
290 } else {
291 list_add_tail(&buf->vb.queue,&q->queue);
292 buf->vb.state = STATE_QUEUED;
293 }
294 return 0;
295}
296
297void saa7134_buffer_finish(struct saa7134_dev *dev,
298 struct saa7134_dmaqueue *q,
299 unsigned int state)
300{
301 assert_spin_locked(&dev->slock);
302 dprintk("buffer_finish %p\n",q->curr);
303
304 /* finish current buffer */
305 q->curr->vb.state = state;
306 do_gettimeofday(&q->curr->vb.ts);
307 wake_up(&q->curr->vb.done);
308 q->curr = NULL;
309}
310
311void saa7134_buffer_next(struct saa7134_dev *dev,
312 struct saa7134_dmaqueue *q)
313{
314 struct saa7134_buf *buf,*next = NULL;
315
316 assert_spin_locked(&dev->slock);
317 BUG_ON(NULL != q->curr);
318
319 if (!list_empty(&q->queue)) {
320 /* activate next one from queue */
321 buf = list_entry(q->queue.next,struct saa7134_buf,vb.queue);
322 dprintk("buffer_next %p [prev=%p/next=%p]\n",
323 buf,q->queue.prev,q->queue.next);
324 list_del(&buf->vb.queue);
325 if (!list_empty(&q->queue))
326 next = list_entry(q->queue.next,struct saa7134_buf,
327 vb.queue);
328 q->curr = buf;
329 buf->activate(dev,buf,next);
330 dprintk("buffer_next #2 prev=%p/next=%p\n",
331 q->queue.prev,q->queue.next);
332 } else {
333 /* nothing to do -- just stop DMA */
334 dprintk("buffer_next %p\n",NULL);
335 saa7134_set_dmabits(dev);
336 del_timer(&q->timeout);
337 }
338}
339
340void saa7134_buffer_timeout(unsigned long data)
341{
342 struct saa7134_dmaqueue *q = (struct saa7134_dmaqueue*)data;
343 struct saa7134_dev *dev = q->dev;
344 unsigned long flags;
345
346 spin_lock_irqsave(&dev->slock,flags);
347
348 /* try to reset the hardware (SWRST) */
349 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
350 saa_writeb(SAA7134_REGION_ENABLE, 0x80);
351 saa_writeb(SAA7134_REGION_ENABLE, 0x00);
352
353 /* flag current buffer as failed,
354 try to start over with the next one. */
355 if (q->curr) {
356 dprintk("timeout on %p\n",q->curr);
357 saa7134_buffer_finish(dev,q,STATE_ERROR);
358 }
359 saa7134_buffer_next(dev,q);
360 spin_unlock_irqrestore(&dev->slock,flags);
361}
362
363/* ------------------------------------------------------------------ */
364
365int saa7134_set_dmabits(struct saa7134_dev *dev)
366{
367 u32 split, task=0, ctrl=0, irq=0;
368 enum v4l2_field cap = V4L2_FIELD_ANY;
369 enum v4l2_field ov = V4L2_FIELD_ANY;
370
371 assert_spin_locked(&dev->slock);
372
373 /* video capture -- dma 0 + video task A */
374 if (dev->video_q.curr) {
375 task |= 0x01;
376 ctrl |= SAA7134_MAIN_CTRL_TE0;
377 irq |= SAA7134_IRQ1_INTE_RA0_1 |
378 SAA7134_IRQ1_INTE_RA0_0;
4ac97914 379 cap = dev->video_q.curr->vb.field;
1da177e4
LT		 380 }
381
382 /* video capture -- dma 1+2 (planar modes) */
383 if (dev->video_q.curr &&
384 dev->video_q.curr->fmt->planar) {
385 ctrl |= SAA7134_MAIN_CTRL_TE4 |
386 SAA7134_MAIN_CTRL_TE5;
387 }
388
389 /* screen overlay -- dma 0 + video task B */
390 if (dev->ovenable) {
391 task |= 0x10;
392 ctrl |= SAA7134_MAIN_CTRL_TE1;
393 ov = dev->ovfield;
394 }
395
396 /* vbi capture -- dma 0 + vbi task A+B */
397 if (dev->vbi_q.curr) {
398 task |= 0x22;
399 ctrl |= SAA7134_MAIN_CTRL_TE2 |
400 SAA7134_MAIN_CTRL_TE3;
401 irq |= SAA7134_IRQ1_INTE_RA0_7 |
402 SAA7134_IRQ1_INTE_RA0_6 |
403 SAA7134_IRQ1_INTE_RA0_5 |
404 SAA7134_IRQ1_INTE_RA0_4;
405 }
406
407 /* audio capture -- dma 3 */
b54134be 408 if (dev->dmasound.dma_running) {
1da177e4
LT		 409 ctrl |= SAA7134_MAIN_CTRL_TE6;
410 irq |= SAA7134_IRQ1_INTE_RA3_1 |
411 SAA7134_IRQ1_INTE_RA3_0;
412 }
413
414 /* TS capture -- dma 5 */
415 if (dev->ts_q.curr) {
416 ctrl |= SAA7134_MAIN_CTRL_TE5;
417 irq |= SAA7134_IRQ1_INTE_RA2_3 |
418 SAA7134_IRQ1_INTE_RA2_2 |
419 SAA7134_IRQ1_INTE_RA2_1 |
420 SAA7134_IRQ1_INTE_RA2_0;
421 }
422
423 /* set task conditions + field handling */
424 if (V4L2_FIELD_HAS_BOTH(cap) || V4L2_FIELD_HAS_BOTH(ov) || cap == ov) {
425 /* default config -- use full frames */
426 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
427 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
428 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x02);
429 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x02);
430 split = 0;
431 } else {
432 /* split fields between tasks */
433 if (V4L2_FIELD_TOP == cap) {
434 /* odd A, even B, repeat */
435 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0d);
436 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0e);
437 } else {
438 /* odd B, even A, repeat */
439 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_A), 0x0e);
440 saa_writeb(SAA7134_TASK_CONDITIONS(TASK_B), 0x0d);
441 }
442 saa_writeb(SAA7134_FIELD_HANDLING(TASK_A), 0x01);
443 saa_writeb(SAA7134_FIELD_HANDLING(TASK_B), 0x01);
444 split = 1;
445 }
446
447 /* irqs */
448 saa_writeb(SAA7134_REGION_ENABLE, task);
449 saa_writel(SAA7134_IRQ1, irq);
450 saa_andorl(SAA7134_MAIN_CTRL,
451 SAA7134_MAIN_CTRL_TE0 |
452 SAA7134_MAIN_CTRL_TE1 |
453 SAA7134_MAIN_CTRL_TE2 |
454 SAA7134_MAIN_CTRL_TE3 |
455 SAA7134_MAIN_CTRL_TE4 |
456 SAA7134_MAIN_CTRL_TE5 |
457 SAA7134_MAIN_CTRL_TE6,
458 ctrl);
459 dprintk("dmabits: task=0x%02x ctrl=0x%02x irq=0x%x split=%s\n",
460 task, ctrl, irq, split ? "no" : "yes");
461
462 return 0;
463}
464
465/* ------------------------------------------------------------------ */
466/* IRQ handler + helpers */
467
468static char *irqbits[] = {
469 "DONE_RA0", "DONE_RA1", "DONE_RA2", "DONE_RA3",
470 "AR", "PE", "PWR_ON", "RDCAP", "INTL", "FIDT", "MMC",
471 "TRIG_ERR", "CONF_ERR", "LOAD_ERR",
472 "GPIO16?", "GPIO18", "GPIO22", "GPIO23"
473};
474#define IRQBITS ARRAY_SIZE(irqbits)
475
476static void print_irqstatus(struct saa7134_dev *dev, int loop,
477 unsigned long report, unsigned long status)
478{
479 unsigned int i;
480
481 printk(KERN_DEBUG "%s/irq[%d,%ld]: r=0x%lx s=0x%02lx",
482 dev->name,loop,jiffies,report,status);
483 for (i = 0; i < IRQBITS; i++) {
484 if (!(report & (1 << i)))
485 continue;
486 printk(" %s",irqbits[i]);
487 }
488 if (report & SAA7134_IRQ_REPORT_DONE_RA0) {
489 printk(" | RA0=%s,%s,%s,%ld",
490 (status & 0x40) ? "vbi" : "video",
491 (status & 0x20) ? "b" : "a",
492 (status & 0x10) ? "odd" : "even",
493 (status & 0x0f));
494 }
495 printk("\n");
496}
497
498static irqreturn_t saa7134_irq(int irq, void *dev_id, struct pt_regs *regs)
499{
500 struct saa7134_dev *dev = (struct saa7134_dev*) dev_id;
501 unsigned long report,status;
502 int loop, handled = 0;
503
504 for (loop = 0; loop < 10; loop++) {
505 report = saa_readl(SAA7134_IRQ_REPORT);
506 status = saa_readl(SAA7134_IRQ_STATUS);
507 if (0 == report) {
508 if (irq_debug > 1)
509 printk(KERN_DEBUG "%s/irq: no (more) work\n",
510 dev->name);
511 goto out;
512 }
79dd0c69 513
4aabf633
RC		 514 /* If dmasound support is active and we get a sound report, exit
515 and let the saa7134-alsa/oss module deal with it */
79dd0c69 516
4aabf633
RC		 517 if ((report & SAA7134_IRQ_REPORT_DONE_RA3) &&
518 (dev->dmasound.priv_data != NULL) )
519 {
79dd0c69 520 if (irq_debug > 1)
4aabf633 521 printk(KERN_DEBUG "%s/irq: ignoring interrupt for DMA sound\n",
79dd0c69
RC		 522 dev->name);
523 goto out;
524 }
525
1da177e4
LT		 526 handled = 1;
527 saa_writel(SAA7134_IRQ_REPORT,report);
528 if (irq_debug)
529 print_irqstatus(dev,loop,report,status);
530
1da177e4
LT		 531
532 if (report & SAA7134_IRQ_REPORT_RDCAP /* _INTL */)
533 saa7134_irq_video_intl(dev);
534
535 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
536 (status & 0x60) == 0)
537 saa7134_irq_video_done(dev,status);
538
539 if ((report & SAA7134_IRQ_REPORT_DONE_RA0) &&
540 (status & 0x40) == 0x40)
541 saa7134_irq_vbi_done(dev,status);
542
543 if ((report & SAA7134_IRQ_REPORT_DONE_RA2) &&
544 card_has_mpeg(dev))
545 saa7134_irq_ts_done(dev,status);
546
0602fbb2
PM		 547 if (report & SAA7134_IRQ_REPORT_GPIO16) {
548 switch (dev->has_remote) {
549 case SAA7134_REMOTE_GPIO:
550 if (dev->remote->mask_keydown & 0x10000) {
551 saa7134_input_irq(dev);
552 }
553 break;
554
555 case SAA7134_REMOTE_I2C:
556 break; /* FIXME: invoke I2C get_key() */
557
558 default: /* GPIO16 not used by IR remote */
559 break;
560 }
561 }
bd15eba3 562
0602fbb2
PM		 563 if (report & SAA7134_IRQ_REPORT_GPIO18) {
564 switch (dev->has_remote) {
565 case SAA7134_REMOTE_GPIO:
566 if ((dev->remote->mask_keydown & 0x40000) ||
567 (dev->remote->mask_keyup & 0x40000)) {
568 saa7134_input_irq(dev);
569 }
570 break;
571
572 case SAA7134_REMOTE_I2C:
573 break; /* FIXME: invoke I2C get_key() */
574
575 default: /* GPIO18 not used by IR remote */
576 break;
577 }
578 }
1da177e4
LT		 579 }
580
581 if (10 == loop) {
582 print_irqstatus(dev,loop,report,status);
583 if (report & SAA7134_IRQ_REPORT_PE) {
584 /* disable all parity error */
585 printk(KERN_WARNING "%s/irq: looping -- "
586 "clearing PE (parity error!) enable bit\n",dev->name);
587 saa_clearl(SAA7134_IRQ2,SAA7134_IRQ2_INTE_PE);
0602fbb2
PM		 588 } else if (report & SAA7134_IRQ_REPORT_GPIO16) {
589 /* disable gpio16 IRQ */
1da177e4 590 printk(KERN_WARNING "%s/irq: looping -- "
0602fbb2
PM		 591 "clearing GPIO16 enable bit\n",dev->name);
592 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO16);
593 } else if (report & SAA7134_IRQ_REPORT_GPIO18) {
594 /* disable gpio18 IRQs */
595 printk(KERN_WARNING "%s/irq: looping -- "
596 "clearing GPIO18 enable bit\n",dev->name);
597 saa_clearl(SAA7134_IRQ2, SAA7134_IRQ2_INTE_GPIO18);
1da177e4
LT		 598 } else {
599 /* disable all irqs */
600 printk(KERN_WARNING "%s/irq: looping -- "
601 "clearing all enable bits\n",dev->name);
602 saa_writel(SAA7134_IRQ1,0);
603 saa_writel(SAA7134_IRQ2,0);
604 }
605 }
606
607 out:
608 return IRQ_RETVAL(handled);
609}
610
611/* ------------------------------------------------------------------ */
612
613/* early init (no i2c, no irq) */
614static int saa7134_hwinit1(struct saa7134_dev *dev)
615{
616 dprintk("hwinit1\n");
617
618 saa_writel(SAA7134_IRQ1, 0);
619 saa_writel(SAA7134_IRQ2, 0);
3593cab5 620 mutex_init(&dev->lock);
1da177e4
LT		 621 spin_lock_init(&dev->slock);
622
623 saa7134_track_gpio(dev,"pre-init");
624 saa7134_video_init1(dev);
625 saa7134_vbi_init1(dev);
626 if (card_has_mpeg(dev))
627 saa7134_ts_init1(dev);
628 saa7134_input_init1(dev);
629
1da177e4
LT		 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 |
1da177e4
LT		 642 SAA7134_MAIN_CTRL_EBDAC);
643
17a05ef3
NS		 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
1da177e4
LT		 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
660/* late init (with i2c + irq) */
661static int saa7134_hwinit2(struct saa7134_dev *dev)
662{
330a115a 663 unsigned int irq2_mask;
1da177e4
LT		 664 dprintk("hwinit2\n");
665
666 saa7134_video_init2(dev);
667 saa7134_tvaudio_init2(dev);
668
669 /* enable IRQ's */
4ac97914 670 irq2_mask =
330a115a
MCC		 671 SAA7134_IRQ2_INTE_DEC3 |
672 SAA7134_IRQ2_INTE_DEC2 |
673 SAA7134_IRQ2_INTE_DEC1 |
674 SAA7134_IRQ2_INTE_DEC0 |
675 SAA7134_IRQ2_INTE_PE |
676 SAA7134_IRQ2_INTE_AR;
677
0602fbb2
PM		 678 if (dev->has_remote == SAA7134_REMOTE_GPIO) {
679 if (dev->remote->mask_keydown & 0x10000)
680 irq2_mask |= SAA7134_IRQ2_INTE_GPIO16;
681 else if (dev->remote->mask_keydown & 0x40000)
682 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18;
683 else if (dev->remote->mask_keyup & 0x40000)
684 irq2_mask |= SAA7134_IRQ2_INTE_GPIO18A;
685 }
330a115a 686
1da177e4 687 saa_writel(SAA7134_IRQ1, 0);
330a115a 688 saa_writel(SAA7134_IRQ2, irq2_mask);
1da177e4
LT		 689
690 return 0;
691}
692
693/* shutdown */
694static int saa7134_hwfini(struct saa7134_dev *dev)
695{
696 dprintk("hwfini\n");
697
1da177e4
LT		 698 if (card_has_mpeg(dev))
699 saa7134_ts_fini(dev);
700 saa7134_input_fini(dev);
701 saa7134_vbi_fini(dev);
702 saa7134_video_fini(dev);
703 saa7134_tvaudio_fini(dev);
704 return 0;
705}
706
707static void __devinit must_configure_manually(void)
708{
709 unsigned int i,p;
710
711 printk(KERN_WARNING
712 "saa7134: <rant>\n"
713 "saa7134: Congratulations! Your TV card vendor saved a few\n"
714 "saa7134: cents for a eeprom, thus your pci board has no\n"
715 "saa7134: subsystem ID and I can't identify it automatically\n"
716 "saa7134: </rant>\n"
717 "saa7134: I feel better now. Ok, here are the good news:\n"
718 "saa7134: You can use the card=<nr> insmod option to specify\n"
719 "saa7134: which board do you have. The list:\n");
720 for (i = 0; i < saa7134_bcount; i++) {
721 printk(KERN_WARNING "saa7134: card=%d -> %-40.40s",
722 i,saa7134_boards[i].name);
723 for (p = 0; saa7134_pci_tbl[p].driver_data; p++) {
724 if (saa7134_pci_tbl[p].driver_data != i)
725 continue;
726 printk(" %04x:%04x",
727 saa7134_pci_tbl[p].subvendor,
728 saa7134_pci_tbl[p].subdevice);
729 }
730 printk("\n");
731 }
732}
733
734static struct video_device *vdev_init(struct saa7134_dev *dev,
735 struct video_device *template,
736 char *type)
737{
738 struct video_device *vfd;
739
740 vfd = video_device_alloc();
741 if (NULL == vfd)
742 return NULL;
743 *vfd = *template;
744 vfd->minor = -1;
745 vfd->dev = &dev->pci->dev;
746 vfd->release = video_device_release;
747 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)",
748 dev->name, type, saa7134_boards[dev->board].name);
749 return vfd;
750}
751
752static void saa7134_unregister_video(struct saa7134_dev *dev)
753{
754 if (dev->video_dev) {
755 if (-1 != dev->video_dev->minor)
756 video_unregister_device(dev->video_dev);
757 else
758 video_device_release(dev->video_dev);
759 dev->video_dev = NULL;
760 }
761 if (dev->vbi_dev) {
762 if (-1 != dev->vbi_dev->minor)
763 video_unregister_device(dev->vbi_dev);
764 else
765 video_device_release(dev->vbi_dev);
766 dev->vbi_dev = NULL;
767 }
768 if (dev->radio_dev) {
769 if (-1 != dev->radio_dev->minor)
770 video_unregister_device(dev->radio_dev);
771 else
772 video_device_release(dev->radio_dev);
773 dev->radio_dev = NULL;
774 }
775}
776
777static void mpeg_ops_attach(struct saa7134_mpeg_ops *ops,
778 struct saa7134_dev *dev)
779{
780 int err;
781
782 if (NULL != dev->mops)
783 return;
784 if (saa7134_boards[dev->board].mpeg != ops->type)
785 return;
786 err = ops->init(dev);
787 if (0 != err)
788 return;
789 dev->mops = ops;
790}
791
792static void mpeg_ops_detach(struct saa7134_mpeg_ops *ops,
793 struct saa7134_dev *dev)
794{
795 if (NULL == dev->mops)
796 return;
797 if (dev->mops != ops)
798 return;
799 dev->mops->fini(dev);
800 dev->mops = NULL;
801}
802
803static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
804 const struct pci_device_id *pci_id)
805{
806 struct saa7134_dev *dev;
807 struct list_head *item;
808 struct saa7134_mpeg_ops *mops;
809 int err;
810
7408187d 811 dev = kzalloc(sizeof(*dev),GFP_KERNEL);
1da177e4
LT		 812 if (NULL == dev)
813 return -ENOMEM;
1da177e4
LT		 814
815 /* pci init */
816 dev->pci = pci_dev;
817 if (pci_enable_device(pci_dev)) {
818 err = -EIO;
819 goto fail1;
820 }
821
822 dev->nr = saa7134_devcount;
823 sprintf(dev->name,"saa%x[%d]",pci_dev->device,dev->nr);
824
825 /* pci quirks */
826 if (pci_pci_problems) {
827 if (pci_pci_problems & PCIPCI_TRITON)
828 printk(KERN_INFO "%s: quirk: PCIPCI_TRITON\n", dev->name);
829 if (pci_pci_problems & PCIPCI_NATOMA)
830 printk(KERN_INFO "%s: quirk: PCIPCI_NATOMA\n", dev->name);
831 if (pci_pci_problems & PCIPCI_VIAETBF)
832 printk(KERN_INFO "%s: quirk: PCIPCI_VIAETBF\n", dev->name);
833 if (pci_pci_problems & PCIPCI_VSFX)
834 printk(KERN_INFO "%s: quirk: PCIPCI_VSFX\n",dev->name);
835#ifdef PCIPCI_ALIMAGIK
836 if (pci_pci_problems & PCIPCI_ALIMAGIK) {
837 printk(KERN_INFO "%s: quirk: PCIPCI_ALIMAGIK -- latency fixup\n",
838 dev->name);
839 latency = 0x0A;
840 }
841#endif
9050d942
MCC		 842 if (pci_pci_problems & PCIPCI_FAIL) {
843 printk(KERN_INFO "%s: quirk: this driver and your "
844 "chipset may not work together"
845 " in overlay mode.\n",dev->name);
846 if (!no_overlay) {
847 printk(KERN_INFO "%s: quirk: overlay "
848 "mode will be disabled.\n",
849 dev->name);
850 no_overlay = 1;
851 } else {
852 printk(KERN_INFO "%s: quirk: overlay "
853 "mode will be forced. Use this"
854 " option at your own risk.\n",
855 dev->name);
856 }
857 }
1da177e4
LT		 858 }
859 if (UNSET != latency) {
860 printk(KERN_INFO "%s: setting pci latency timer to %d\n",
861 dev->name,latency);
862 pci_write_config_byte(pci_dev, PCI_LATENCY_TIMER, latency);
863 }
864
865 /* print pci info */
866 pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
4ac97914
MCC		 867 pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER, &dev->pci_lat);
868 printk(KERN_INFO "%s: found at %s, rev: %d, irq: %d, "
1da177e4
LT		 869 "latency: %d, mmio: 0x%lx\n", dev->name,
870 pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
871 dev->pci_lat,pci_resource_start(pci_dev,0));
872 pci_set_master(pci_dev);
873 if (!pci_dma_supported(pci_dev,0xffffffff)) {
874 printk("%s: Oops: no 32bit PCI DMA ???\n",dev->name);
875 err = -EIO;
876 goto fail1;
877 }
878
879 /* board config */
880 dev->board = pci_id->driver_data;
881 if (card[dev->nr] >= 0 &&
882 card[dev->nr] < saa7134_bcount)
883 dev->board = card[dev->nr];
884 if (SAA7134_BOARD_NOAUTO == dev->board) {
885 must_configure_manually();
886 dev->board = SAA7134_BOARD_UNKNOWN;
887 }
888 dev->tuner_type = saa7134_boards[dev->board].tuner_type;
889 dev->tda9887_conf = saa7134_boards[dev->board].tda9887_conf;
890 if (UNSET != tuner[dev->nr])
891 dev->tuner_type = tuner[dev->nr];
4ac97914 892 printk(KERN_INFO "%s: subsystem: %04x:%04x, board: %s [card=%d,%s]\n",
1da177e4
LT		 893 dev->name,pci_dev->subsystem_vendor,
894 pci_dev->subsystem_device,saa7134_boards[dev->board].name,
895 dev->board, card[dev->nr] == dev->board ?
896 "insmod option" : "autodetected");
897
898 /* get mmio */
899 if (!request_mem_region(pci_resource_start(pci_dev,0),
900 pci_resource_len(pci_dev,0),
901 dev->name)) {
902 err = -EBUSY;
903 printk(KERN_ERR "%s: can't get MMIO memory @ 0x%lx\n",
904 dev->name,pci_resource_start(pci_dev,0));
905 goto fail1;
906 }
907 dev->lmmio = ioremap(pci_resource_start(pci_dev,0), 0x1000);
908 dev->bmmio = (__u8 __iomem *)dev->lmmio;
909 if (NULL == dev->lmmio) {
910 err = -EIO;
911 printk(KERN_ERR "%s: can't ioremap() MMIO memory\n",
912 dev->name);
913 goto fail2;
914 }
915
916 /* initialize hardware #1 */
1da177e4
LT		 917 saa7134_board_init1(dev);
918 saa7134_hwinit1(dev);
919
920 /* get irq */
921 err = request_irq(pci_dev->irq, saa7134_irq,
922 SA_SHIRQ | SA_INTERRUPT, dev->name, dev);
923 if (err < 0) {
924 printk(KERN_ERR "%s: can't get IRQ %d\n",
925 dev->name,pci_dev->irq);
926 goto fail3;
927 }
928
929 /* wait a bit, register i2c bus */
930 msleep(100);
931 saa7134_i2c_register(dev);
932
933 /* initialize hardware #2 */
934 saa7134_board_init2(dev);
935 saa7134_hwinit2(dev);
936
937 /* load i2c helpers */
938 if (TUNER_ABSENT != dev->tuner_type)
939 request_module("tuner");
940 if (dev->tda9887_conf)
941 request_module("tda9887");
4ac97914 942 if (card_is_empress(dev)) {
1da177e4
LT		 943 request_module("saa6752hs");
944 request_module_depend("saa7134-empress",&need_empress);
945 }
330a115a 946
4ac97914 947 if (card_is_dvb(dev))
1da177e4
LT		 948 request_module_depend("saa7134-dvb",&need_dvb);
949
4aabf633
RC		 950
951 if (alsa)
b54134be 952 request_module_depend("saa7134-alsa",&need_alsa);
b54134be 953
4aabf633
RC		 954 if (oss)
955 request_module_depend("saa7134-oss",&need_oss);
b54134be 956
1da177e4
LT		 957 v4l2_prio_init(&dev->prio);
958
959 /* register v4l devices */
960 dev->video_dev = vdev_init(dev,&saa7134_video_template,"video");
961 err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
962 video_nr[dev->nr]);
963 if (err < 0) {
964 printk(KERN_INFO "%s: can't register video device\n",
965 dev->name);
966 goto fail4;
967 }
968 printk(KERN_INFO "%s: registered device video%d [v4l2]\n",
969 dev->name,dev->video_dev->minor & 0x1f);
970
971 dev->vbi_dev = vdev_init(dev,&saa7134_vbi_template,"vbi");
972 err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
973 vbi_nr[dev->nr]);
974 if (err < 0)
975 goto fail4;
976 printk(KERN_INFO "%s: registered device vbi%d\n",
977 dev->name,dev->vbi_dev->minor & 0x1f);
978
979 if (card_has_radio(dev)) {
980 dev->radio_dev = vdev_init(dev,&saa7134_radio_template,"radio");
981 err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
982 radio_nr[dev->nr]);
983 if (err < 0)
984 goto fail4;
985 printk(KERN_INFO "%s: registered device radio%d\n",
986 dev->name,dev->radio_dev->minor & 0x1f);
987 }
988
1da177e4
LT		 989 /* everything worked */
990 pci_set_drvdata(pci_dev,dev);
991 saa7134_devcount++;
992
1e4baed3 993 mutex_lock(&devlist_lock);
1da177e4
LT		 994 list_for_each(item,&mops_list) {
995 mops = list_entry(item, struct saa7134_mpeg_ops, next);
996 mpeg_ops_attach(mops, dev);
997 }
998 list_add_tail(&dev->devlist,&saa7134_devlist);
1e4baed3 999 mutex_unlock(&devlist_lock);
1da177e4
LT		 1000
1001 /* check for signal */
1002 saa7134_irq_video_intl(dev);
c817e763 1003
f5b974cb
RC		 1004 if (dmasound_init && !dev->dmasound.priv_data) {
1005 dmasound_init(dev);
1006 }
1007
1da177e4
LT		 1008 return 0;
1009
1da177e4
LT		 1010 fail4:
1011 saa7134_unregister_video(dev);
1012 saa7134_i2c_unregister(dev);
1013 free_irq(pci_dev->irq, dev);
1014 fail3:
1015 saa7134_hwfini(dev);
1016 iounmap(dev->lmmio);
1017 fail2:
1018 release_mem_region(pci_resource_start(pci_dev,0),
1019 pci_resource_len(pci_dev,0));
1020 fail1:
1021 kfree(dev);
1022 return err;
1023}
1024
1025static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1026{
4ac97914 1027 struct saa7134_dev *dev = pci_get_drvdata(pci_dev);
1da177e4
LT		 1028 struct list_head *item;
1029 struct saa7134_mpeg_ops *mops;
1030
f5b974cb
RC		 1031 /* Release DMA sound modules if present */
1032 if (dmasound_exit && dev->dmasound.priv_data) {
1033 dmasound_exit(dev);
1034 }
1035
1da177e4
LT		 1036 /* debugging ... */
1037 if (irq_debug) {
1038 u32 report = saa_readl(SAA7134_IRQ_REPORT);
1039 u32 status = saa_readl(SAA7134_IRQ_STATUS);
1040 print_irqstatus(dev,42,report,status);
1041 }
1042
1043 /* disable peripheral devices */
1044 saa_writeb(SAA7134_SPECIAL_MODE,0);
1045
1046 /* shutdown hardware */
1047 saa_writel(SAA7134_IRQ1,0);
1048 saa_writel(SAA7134_IRQ2,0);
1049 saa_writel(SAA7134_MAIN_CTRL,0);
1050
1051 /* shutdown subsystems */
1052 saa7134_hwfini(dev);
1053
1054 /* unregister */
1e4baed3 1055 mutex_lock(&devlist_lock);
1da177e4
LT		 1056 list_del(&dev->devlist);
1057 list_for_each(item,&mops_list) {
1058 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1059 mpeg_ops_detach(mops, dev);
1060 }
1e4baed3 1061 mutex_unlock(&devlist_lock);
1da177e4
LT		 1062 saa7134_devcount--;
1063
1064 saa7134_i2c_unregister(dev);
1da177e4
LT		 1065 saa7134_unregister_video(dev);
1066
f5b974cb 1067
4aabf633
RC		 1068 /* the DMA sound modules should be unloaded before reaching
1069 this, but just in case they are still present... */
1070 if (dev->dmasound.priv_data != NULL) {
1071 free_irq(pci_dev->irq, &dev->dmasound);
1072 dev->dmasound.priv_data = NULL;
1073 }
1074
f5b974cb 1075
4aabf633 1076 /* release resources */
1da177e4
LT		 1077 free_irq(pci_dev->irq, dev);
1078 iounmap(dev->lmmio);
1079 release_mem_region(pci_resource_start(pci_dev,0),
1080 pci_resource_len(pci_dev,0));
1081
1da177e4
LT		 1082 pci_set_drvdata(pci_dev, NULL);
1083
1084 /* free memory */
1085 kfree(dev);
1086}
1087
1088/* ----------------------------------------------------------- */
1089
1090int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1091{
1092 struct list_head *item;
1093 struct saa7134_dev *dev;
1094
1e4baed3 1095 mutex_lock(&devlist_lock);
1da177e4
LT		 1096 list_for_each(item,&saa7134_devlist) {
1097 dev = list_entry(item, struct saa7134_dev, devlist);
1098 mpeg_ops_attach(ops, dev);
1099 }
1100 list_add_tail(&ops->next,&mops_list);
1e4baed3 1101 mutex_unlock(&devlist_lock);
1da177e4
LT		 1102 return 0;
1103}
1104
1105void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1106{
1107 struct list_head *item;
1108 struct saa7134_dev *dev;
1109
1e4baed3 1110 mutex_lock(&devlist_lock);
1da177e4
LT		 1111 list_del(&ops->next);
1112 list_for_each(item,&saa7134_devlist) {
1113 dev = list_entry(item, struct saa7134_dev, devlist);
1114 mpeg_ops_detach(ops, dev);
1115 }
1e4baed3 1116 mutex_unlock(&devlist_lock);
1da177e4
LT		 1117}
1118
1119EXPORT_SYMBOL(saa7134_ts_register);
1120EXPORT_SYMBOL(saa7134_ts_unregister);
1121
1122/* ----------------------------------------------------------- */
1123
1124static struct pci_driver saa7134_pci_driver = {
4ac97914
MCC		 1125 .name = "saa7134",
1126 .id_table = saa7134_pci_tbl,
1127 .probe = saa7134_initdev,
1128 .remove = __devexit_p(saa7134_finidev),
1da177e4
LT		 1129};
1130
1131static int saa7134_init(void)
1132{
1133 INIT_LIST_HEAD(&saa7134_devlist);
1134 printk(KERN_INFO "saa7130/34: v4l2 driver version %d.%d.%d loaded\n",
1135 (SAA7134_VERSION_CODE >> 16) & 0xff,
1136 (SAA7134_VERSION_CODE >> 8) & 0xff,
1137 SAA7134_VERSION_CODE & 0xff);
1138#ifdef SNAPSHOT
1139 printk(KERN_INFO "saa7130/34: snapshot date %04d-%02d-%02d\n",
1140 SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
1141#endif
2304759d 1142 return pci_register_driver(&saa7134_pci_driver);
1da177e4
LT		 1143}
1144
1145static void saa7134_fini(void)
1146{
fd1eab73 1147#if defined(CONFIG_MODULES) && defined(MODULE)
1da177e4
LT		 1148 if (pending_registered)
1149 unregister_module_notifier(&pending_notifier);
fd1eab73 1150#endif /* CONFIG_MODULES */
1da177e4
LT		 1151 pci_unregister_driver(&saa7134_pci_driver);
1152}
1153
1154module_init(saa7134_init);
1155module_exit(saa7134_fini);
1156
1157/* ----------------------------------------------------------- */
1158
1da177e4
LT		 1159EXPORT_SYMBOL(saa7134_i2c_call_clients);
1160EXPORT_SYMBOL(saa7134_devlist);
1161EXPORT_SYMBOL(saa7134_boards);
1162
4aabf633 1163/* ----------------- for the DMA sound modules --------------- */
79dd0c69 1164
f5b974cb
RC		 1165EXPORT_SYMBOL(dmasound_init);
1166EXPORT_SYMBOL(dmasound_exit);
79dd0c69
RC		 1167EXPORT_SYMBOL(saa7134_pgtable_free);
1168EXPORT_SYMBOL(saa7134_pgtable_build);
1169EXPORT_SYMBOL(saa7134_pgtable_alloc);
1170EXPORT_SYMBOL(saa7134_set_dmabits);
1171
1da177e4
LT		 1172/* ----------------------------------------------------------- */
1173/*
1174 * Local variables:
1175 * c-basic-offset: 8
1176 * End:
1177 */
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