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review.evervolv.com / android_kernel_lge_hammerhead / 1f3be588b51e809476cdecd4eaf6fd04670d9c36 / . / drivers / media / video / saa7134 / saa7134-oss.c
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Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
2 * $Id: saa7134-oss.c,v 1.13 2004/12/10 12:33:39 kraxel Exp $
3 *
4 * device driver for philips saa7134 based TV cards
5 * oss dsp interface
6 *
7 * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 */
23
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/soundcard.h>
31
32#include "saa7134-reg.h"
33#include "saa7134.h"
34
35/* ------------------------------------------------------------------ */
36
37static unsigned int oss_debug = 0;
38module_param(oss_debug, int, 0644);
39MODULE_PARM_DESC(oss_debug,"enable debug messages [oss]");
40
41static unsigned int oss_rate = 0;
42module_param(oss_rate, int, 0444);
43MODULE_PARM_DESC(oss_rate,"sample rate (valid are: 32000,48000)");
44
45#define dprintk(fmt, arg...) if (oss_debug) \
46 printk(KERN_DEBUG "%s/oss: " fmt, dev->name , ## arg)
47
48/* ------------------------------------------------------------------ */
49
50static int dsp_buffer_conf(struct saa7134_dev *dev, int blksize, int blocks)
51{
52 blksize &= ~0xff;
53 if (blksize < 0x100)
54 blksize = 0x100;
55 if (blksize > 0x10000)
56 blksize = 0x10000;
57
58 if (blocks < 2)
59 blocks = 2;
60 while ((blksize * blocks) & ~PAGE_MASK)
61 blocks++;
62 if ((blksize * blocks) > 1024*1024)
63 blocks = 1024*1024 / blksize;
64
65 dev->oss.blocks = blocks;
66 dev->oss.blksize = blksize;
67 dev->oss.bufsize = blksize * blocks;
68
69 dprintk("buffer config: %d blocks / %d bytes, %d kB total\n",
70 blocks,blksize,blksize * blocks / 1024);
71 return 0;
72}
73
74static int dsp_buffer_init(struct saa7134_dev *dev)
75{
76 int err;
77
78 if (!dev->oss.bufsize)
79 BUG();
80 videobuf_dma_init(&dev->oss.dma);
81 err = videobuf_dma_init_kernel(&dev->oss.dma, PCI_DMA_FROMDEVICE,
82 dev->oss.bufsize >> PAGE_SHIFT);
83 if (0 != err)
84 return err;
85 return 0;
86}
87
88static int dsp_buffer_free(struct saa7134_dev *dev)
89{
90 if (!dev->oss.blksize)
91 BUG();
92 videobuf_dma_free(&dev->oss.dma);
93 dev->oss.blocks = 0;
94 dev->oss.blksize = 0;
95 dev->oss.bufsize = 0;
96 return 0;
97}
98
99static void dsp_dma_start(struct saa7134_dev *dev)
100{
101 dev->oss.dma_blk = 0;
102 dev->oss.dma_running = 1;
103 saa7134_set_dmabits(dev);
104}
105
106static void dsp_dma_stop(struct saa7134_dev *dev)
107{
108 dev->oss.dma_blk = -1;
109 dev->oss.dma_running = 0;
110 saa7134_set_dmabits(dev);
111}
112
113static int dsp_rec_start(struct saa7134_dev *dev)
114{
115 int err, bswap, sign;
116 u32 fmt, control;
117 unsigned long flags;
118
119 /* prepare buffer */
120 if (0 != (err = videobuf_dma_pci_map(dev->pci,&dev->oss.dma)))
121 return err;
122 if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->oss.pt)))
123 goto fail1;
124 if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->oss.pt,
125 dev->oss.dma.sglist,
126 dev->oss.dma.sglen,
127 0)))
128 goto fail2;
129
130 /* sample format */
131 switch (dev->oss.afmt) {
132 case AFMT_U8:
133 case AFMT_S8: fmt = 0x00; break;
134 case AFMT_U16_LE:
135 case AFMT_U16_BE:
136 case AFMT_S16_LE:
137 case AFMT_S16_BE: fmt = 0x01; break;
138 default:
139 err = -EINVAL;
140 goto fail2;
141 }
142
143 switch (dev->oss.afmt) {
144 case AFMT_S8:
145 case AFMT_S16_LE:
146 case AFMT_S16_BE: sign = 1; break;
147 default: sign = 0; break;
148 }
149
150 switch (dev->oss.afmt) {
151 case AFMT_U16_BE:
152 case AFMT_S16_BE: bswap = 1; break;
153 default: bswap = 0; break;
154 }
155
156 switch (dev->pci->device) {
157 case PCI_DEVICE_ID_PHILIPS_SAA7134:
158 if (1 == dev->oss.channels)
159 fmt |= (1 << 3);
160 if (2 == dev->oss.channels)
161 fmt |= (3 << 3);
162 if (sign)
163 fmt |= 0x04;
164 fmt |= (TV == dev->oss.input) ? 0xc0 : 0x80;
165
166 saa_writeb(SAA7134_NUM_SAMPLES0, (dev->oss.blksize & 0x0000ff));
167 saa_writeb(SAA7134_NUM_SAMPLES1, (dev->oss.blksize & 0x00ff00) >> 8);
168 saa_writeb(SAA7134_NUM_SAMPLES2, (dev->oss.blksize & 0xff0000) >> 16);
169 saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt);
170 break;
171 case PCI_DEVICE_ID_PHILIPS_SAA7133:
172 case PCI_DEVICE_ID_PHILIPS_SAA7135:
173 if (1 == dev->oss.channels)
174 fmt |= (1 << 4);
175 if (2 == dev->oss.channels)
176 fmt |= (2 << 4);
177 if (!sign)
178 fmt |= 0x04;
179 saa_writel(0x588 >> 2, dev->oss.blksize -4);
180 saa_writel(0x58c >> 2, 0x543210 | (fmt << 24));
181 break;
182 }
183 dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n",
184 dev->oss.afmt, dev->oss.channels, fmt,
185 bswap ? 'b' : '-');
186
187 /* dma: setup channel 6 (= AUDIO) */
188 control = SAA7134_RS_CONTROL_BURST_16 |
189 SAA7134_RS_CONTROL_ME |
190 (dev->oss.pt.dma >> 12);
191 if (bswap)
192 control |= SAA7134_RS_CONTROL_BSWAP;
193 saa_writel(SAA7134_RS_BA1(6),0);
194 saa_writel(SAA7134_RS_BA2(6),dev->oss.blksize);
195 saa_writel(SAA7134_RS_PITCH(6),0);
196 saa_writel(SAA7134_RS_CONTROL(6),control);
197
198 /* start dma */
199 dev->oss.recording_on = 1;
200 spin_lock_irqsave(&dev->slock,flags);
201 dsp_dma_start(dev);
202 spin_unlock_irqrestore(&dev->slock,flags);
203 return 0;
204
205 fail2:
206 saa7134_pgtable_free(dev->pci,&dev->oss.pt);
207 fail1:
208 videobuf_dma_pci_unmap(dev->pci,&dev->oss.dma);
209 return err;
210}
211
212static int dsp_rec_stop(struct saa7134_dev *dev)
213{
214 unsigned long flags;
215
216 dprintk("rec_stop dma_blk=%d\n",dev->oss.dma_blk);
217
218 /* stop dma */
219 dev->oss.recording_on = 0;
220 spin_lock_irqsave(&dev->slock,flags);
221 dsp_dma_stop(dev);
222 spin_unlock_irqrestore(&dev->slock,flags);
223
224 /* unlock buffer */
225 saa7134_pgtable_free(dev->pci,&dev->oss.pt);
226 videobuf_dma_pci_unmap(dev->pci,&dev->oss.dma);
227 return 0;
228}
229
230/* ------------------------------------------------------------------ */
231
232static int dsp_open(struct inode *inode, struct file *file)
233{
234 int minor = iminor(inode);
235 struct saa7134_dev *h,*dev = NULL;
236 struct list_head *list;
237 int err;
238
239 list_for_each(list,&saa7134_devlist) {
240 h = list_entry(list, struct saa7134_dev, devlist);
241 if (h->oss.minor_dsp == minor)
242 dev = h;
243 }
244 if (NULL == dev)
245 return -ENODEV;
246
247 down(&dev->oss.lock);
248 err = -EBUSY;
249 if (dev->oss.users_dsp)
250 goto fail1;
251 dev->oss.users_dsp++;
252 file->private_data = dev;
253
254 dev->oss.afmt = AFMT_U8;
255 dev->oss.channels = 1;
256 dev->oss.read_count = 0;
257 dev->oss.read_offset = 0;
258 dsp_buffer_conf(dev,PAGE_SIZE,64);
259 err = dsp_buffer_init(dev);
260 if (0 != err)
261 goto fail2;
262
263 up(&dev->oss.lock);
264 return 0;
265
266 fail2:
267 dev->oss.users_dsp--;
268 fail1:
269 up(&dev->oss.lock);
270 return err;
271}
272
273static int dsp_release(struct inode *inode, struct file *file)
274{
275 struct saa7134_dev *dev = file->private_data;
276
277 down(&dev->oss.lock);
278 if (dev->oss.recording_on)
279 dsp_rec_stop(dev);
280 dsp_buffer_free(dev);
281 dev->oss.users_dsp--;
282 file->private_data = NULL;
283 up(&dev->oss.lock);
284 return 0;
285}
286
287static ssize_t dsp_read(struct file *file, char __user *buffer,
288 size_t count, loff_t *ppos)
289{
290 struct saa7134_dev *dev = file->private_data;
291 DECLARE_WAITQUEUE(wait, current);
292 unsigned int bytes;
293 unsigned long flags;
294 int err,ret = 0;
295
296 add_wait_queue(&dev->oss.wq, &wait);
297 down(&dev->oss.lock);
298 while (count > 0) {
299 /* wait for data if needed */
300 if (0 == dev->oss.read_count) {
301 if (!dev->oss.recording_on) {
302 err = dsp_rec_start(dev);
303 if (err < 0) {
304 if (0 == ret)
305 ret = err;
306 break;
307 }
308 }
309 if (dev->oss.recording_on &&
310 !dev->oss.dma_running) {
311 /* recover from overruns */
312 spin_lock_irqsave(&dev->slock,flags);
313 dsp_dma_start(dev);
314 spin_unlock_irqrestore(&dev->slock,flags);
315 }
316 if (file->f_flags & O_NONBLOCK) {
317 if (0 == ret)
318 ret = -EAGAIN;
319 break;
320 }
321 up(&dev->oss.lock);
322 set_current_state(TASK_INTERRUPTIBLE);
323 if (0 == dev->oss.read_count)
324 schedule();
325 set_current_state(TASK_RUNNING);
326 down(&dev->oss.lock);
327 if (signal_pending(current)) {
328 if (0 == ret)
329 ret = -EINTR;
330 break;
331 }
332 }
333
334 /* copy data to userspace */
335 bytes = count;
336 if (bytes > dev->oss.read_count)
337 bytes = dev->oss.read_count;
338 if (bytes > dev->oss.bufsize - dev->oss.read_offset)
339 bytes = dev->oss.bufsize - dev->oss.read_offset;
340 if (copy_to_user(buffer + ret,
341 dev->oss.dma.vmalloc + dev->oss.read_offset,
342 bytes)) {
343 if (0 == ret)
344 ret = -EFAULT;
345 break;
346 }
347
348 ret += bytes;
349 count -= bytes;
350 dev->oss.read_count -= bytes;
351 dev->oss.read_offset += bytes;
352 if (dev->oss.read_offset == dev->oss.bufsize)
353 dev->oss.read_offset = 0;
354 }
355 up(&dev->oss.lock);
356 remove_wait_queue(&dev->oss.wq, &wait);
357 return ret;
358}
359
360static ssize_t dsp_write(struct file *file, const char __user *buffer,
361 size_t count, loff_t *ppos)
362{
363 return -EINVAL;
364}
365
366static int dsp_ioctl(struct inode *inode, struct file *file,
367 unsigned int cmd, unsigned long arg)
368{
369 struct saa7134_dev *dev = file->private_data;
370 void __user *argp = (void __user *) arg;
371 int __user *p = argp;
372 int val = 0;
373
374 if (oss_debug > 1)
375 saa7134_print_ioctl(dev->name,cmd);
376 switch (cmd) {
377 case OSS_GETVERSION:
378 return put_user(SOUND_VERSION, p);
379 case SNDCTL_DSP_GETCAPS:
380 return 0;
381
382 case SNDCTL_DSP_SPEED:
383 if (get_user(val, p))
384 return -EFAULT;
385 /* fall through */
386 case SOUND_PCM_READ_RATE:
387 return put_user(dev->oss.rate, p);
388
389 case SNDCTL_DSP_STEREO:
390 if (get_user(val, p))
391 return -EFAULT;
392 down(&dev->oss.lock);
393 dev->oss.channels = val ? 2 : 1;
394 if (dev->oss.recording_on) {
395 dsp_rec_stop(dev);
396 dsp_rec_start(dev);
397 }
398 up(&dev->oss.lock);
399 return put_user(dev->oss.channels-1, p);
400
401 case SNDCTL_DSP_CHANNELS:
402 if (get_user(val, p))
403 return -EFAULT;
404 if (val != 1 && val != 2)
405 return -EINVAL;
406 down(&dev->oss.lock);
407 dev->oss.channels = val;
408 if (dev->oss.recording_on) {
409 dsp_rec_stop(dev);
410 dsp_rec_start(dev);
411 }
412 up(&dev->oss.lock);
413 /* fall through */
414 case SOUND_PCM_READ_CHANNELS:
415 return put_user(dev->oss.channels, p);
416
417 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
418 return put_user(AFMT_U8 | AFMT_S8 |
419 AFMT_U16_LE | AFMT_U16_BE |
420 AFMT_S16_LE | AFMT_S16_BE, p);
421
422 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt */
423 if (get_user(val, p))
424 return -EFAULT;
425 switch (val) {
426 case AFMT_QUERY:
427 /* nothing to do */
428 break;
429 case AFMT_U8:
430 case AFMT_S8:
431 case AFMT_U16_LE:
432 case AFMT_U16_BE:
433 case AFMT_S16_LE:
434 case AFMT_S16_BE:
435 down(&dev->oss.lock);
436 dev->oss.afmt = val;
437 if (dev->oss.recording_on) {
438 dsp_rec_stop(dev);
439 dsp_rec_start(dev);
440 }
441 up(&dev->oss.lock);
442 return put_user(dev->oss.afmt, p);
443 default:
444 return -EINVAL;
445 }
446
447 case SOUND_PCM_READ_BITS:
448 switch (dev->oss.afmt) {
449 case AFMT_U8:
450 case AFMT_S8:
451 return put_user(8, p);
452 case AFMT_U16_LE:
453 case AFMT_U16_BE:
454 case AFMT_S16_LE:
455 case AFMT_S16_BE:
456 return put_user(16, p);
457 default:
458 return -EINVAL;
459 }
460
461 case SNDCTL_DSP_NONBLOCK:
462 file->f_flags |= O_NONBLOCK;
463 return 0;
464
465 case SNDCTL_DSP_RESET:
466 down(&dev->oss.lock);
467 if (dev->oss.recording_on)
468 dsp_rec_stop(dev);
469 up(&dev->oss.lock);
470 return 0;
471 case SNDCTL_DSP_GETBLKSIZE:
472 return put_user(dev->oss.blksize, p);
473
474 case SNDCTL_DSP_SETFRAGMENT:
475 if (get_user(val, p))
476 return -EFAULT;
477 if (dev->oss.recording_on)
478 return -EBUSY;
479 dsp_buffer_free(dev);
480 /* used to be arg >> 16 instead of val >> 16; fixed */
481 dsp_buffer_conf(dev,1 << (val & 0xffff), (val >> 16) & 0xffff);
482 dsp_buffer_init(dev);
483 return 0;
484
485 case SNDCTL_DSP_SYNC:
486 /* NOP */
487 return 0;
488
489 case SNDCTL_DSP_GETISPACE:
490 {
491 audio_buf_info info;
492 info.fragsize = dev->oss.blksize;
493 info.fragstotal = dev->oss.blocks;
494 info.bytes = dev->oss.read_count;
495 info.fragments = info.bytes / info.fragsize;
496 if (copy_to_user(argp, &info, sizeof(info)))
497 return -EFAULT;
498 return 0;
499 }
500 default:
501 return -EINVAL;
502 }
503}
504
505static unsigned int dsp_poll(struct file *file, struct poll_table_struct *wait)
506{
507 struct saa7134_dev *dev = file->private_data;
508 unsigned int mask = 0;
509
510 poll_wait(file, &dev->oss.wq, wait);
511
512 if (0 == dev->oss.read_count) {
513 down(&dev->oss.lock);
514 if (!dev->oss.recording_on)
515 dsp_rec_start(dev);
516 up(&dev->oss.lock);
517 } else
518 mask |= (POLLIN | POLLRDNORM);
519 return mask;
520}
521
522struct file_operations saa7134_dsp_fops = {
523 .owner = THIS_MODULE,
524 .open = dsp_open,
525 .release = dsp_release,
526 .read = dsp_read,
527 .write = dsp_write,
528 .ioctl = dsp_ioctl,
529 .poll = dsp_poll,
530 .llseek = no_llseek,
531};
532
533/* ------------------------------------------------------------------ */
534
535static int
536mixer_recsrc_7134(struct saa7134_dev *dev)
537{
538 int analog_io,rate;
539
540 switch (dev->oss.input) {
541 case TV:
542 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0xc0);
543 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
544 break;
545 case LINE1:
546 case LINE2:
547 case LINE2_LEFT:
548 analog_io = (LINE1 == dev->oss.input) ? 0x00 : 0x08;
549 rate = (32000 == dev->oss.rate) ? 0x01 : 0x03;
550 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, analog_io);
551 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0x80);
552 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, rate);
553 break;
554 }
555 return 0;
556}
557
558static int
559mixer_recsrc_7133(struct saa7134_dev *dev)
560{
561 u32 value = 0xbbbbbb;
562
563 switch (dev->oss.input) {
564 case TV:
565 value = 0xbbbb10; /* MAIN */
566 break;
567 case LINE1:
568 value = 0xbbbb32; /* AUX1 */
569 break;
570 case LINE2:
571 case LINE2_LEFT:
572 value = 0xbbbb54; /* AUX2 */
573 break;
574 }
575 saa_dsp_writel(dev, 0x46c >> 2, value);
576 return 0;
577}
578
579static int
580mixer_recsrc(struct saa7134_dev *dev, enum saa7134_audio_in src)
581{
582 static const char *iname[] = { "Oops", "TV", "LINE1", "LINE2" };
583
584 dev->oss.count++;
585 dev->oss.input = src;
586 dprintk("mixer input = %s\n",iname[dev->oss.input]);
587
588 switch (dev->pci->device) {
589 case PCI_DEVICE_ID_PHILIPS_SAA7134:
590 mixer_recsrc_7134(dev);
591 break;
592 case PCI_DEVICE_ID_PHILIPS_SAA7133:
593 case PCI_DEVICE_ID_PHILIPS_SAA7135:
594 mixer_recsrc_7133(dev);
595 break;
596 }
597 return 0;
598}
599
600static int
601mixer_level(struct saa7134_dev *dev, enum saa7134_audio_in src, int level)
602{
603 switch (dev->pci->device) {
604 case PCI_DEVICE_ID_PHILIPS_SAA7134:
605 switch (src) {
606 case TV:
607 /* nothing */
608 break;
609 case LINE1:
610 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x10,
611 (100 == level) ? 0x00 : 0x10);
612 break;
613 case LINE2:
614 case LINE2_LEFT:
615 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x20,
616 (100 == level) ? 0x00 : 0x20);
617 break;
618 }
619 break;
620 case PCI_DEVICE_ID_PHILIPS_SAA7133:
621 case PCI_DEVICE_ID_PHILIPS_SAA7135:
622 /* nothing */
623 break;
624 }
625 return 0;
626}
627
628/* ------------------------------------------------------------------ */
629
630static int mixer_open(struct inode *inode, struct file *file)
631{
632 int minor = iminor(inode);
633 struct saa7134_dev *h,*dev = NULL;
634 struct list_head *list;
635
636 list_for_each(list,&saa7134_devlist) {
637 h = list_entry(list, struct saa7134_dev, devlist);
638 if (h->oss.minor_mixer == minor)
639 dev = h;
640 }
641 if (NULL == dev)
642 return -ENODEV;
643
644 file->private_data = dev;
645 return 0;
646}
647
648static int mixer_release(struct inode *inode, struct file *file)
649{
650 file->private_data = NULL;
651 return 0;
652}
653
654static int mixer_ioctl(struct inode *inode, struct file *file,
655 unsigned int cmd, unsigned long arg)
656{
657 struct saa7134_dev *dev = file->private_data;
658 enum saa7134_audio_in input;
659 int val,ret;
660 void __user *argp = (void __user *) arg;
661 int __user *p = argp;
662
663 if (oss_debug > 1)
664 saa7134_print_ioctl(dev->name,cmd);
665 switch (cmd) {
666 case OSS_GETVERSION:
667 return put_user(SOUND_VERSION, p);
668 case SOUND_MIXER_INFO:
669 {
670 mixer_info info;
671 memset(&info,0,sizeof(info));
672 strlcpy(info.id, "TV audio", sizeof(info.id));
673 strlcpy(info.name, dev->name, sizeof(info.name));
674 info.modify_counter = dev->oss.count;
675 if (copy_to_user(argp, &info, sizeof(info)))
676 return -EFAULT;
677 return 0;
678 }
679 case SOUND_OLD_MIXER_INFO:
680 {
681 _old_mixer_info info;
682 memset(&info,0,sizeof(info));
683 strlcpy(info.id, "TV audio", sizeof(info.id));
684 strlcpy(info.name, dev->name, sizeof(info.name));
685 if (copy_to_user(argp, &info, sizeof(info)))
686 return -EFAULT;
687 return 0;
688 }
689 case MIXER_READ(SOUND_MIXER_CAPS):
690 return put_user(SOUND_CAP_EXCL_INPUT, p);
691 case MIXER_READ(SOUND_MIXER_STEREODEVS):
692 return put_user(0, p);
693 case MIXER_READ(SOUND_MIXER_RECMASK):
694 case MIXER_READ(SOUND_MIXER_DEVMASK):
695 val = SOUND_MASK_LINE1 | SOUND_MASK_LINE2;
696 if (32000 == dev->oss.rate)
697 val |= SOUND_MASK_VIDEO;
698 return put_user(val, p);
699
700 case MIXER_WRITE(SOUND_MIXER_RECSRC):
701 if (get_user(val, p))
702 return -EFAULT;
703 input = dev->oss.input;
704 if (32000 == dev->oss.rate &&
705 val & SOUND_MASK_VIDEO && dev->oss.input != TV)
706 input = TV;
707 if (val & SOUND_MASK_LINE1 && dev->oss.input != LINE1)
708 input = LINE1;
709 if (val & SOUND_MASK_LINE2 && dev->oss.input != LINE2)
710 input = LINE2;
711 if (input != dev->oss.input)
712 mixer_recsrc(dev,input);
713 /* fall throuth */
714 case MIXER_READ(SOUND_MIXER_RECSRC):
715 switch (dev->oss.input) {
716 case TV: ret = SOUND_MASK_VIDEO; break;
717 case LINE1: ret = SOUND_MASK_LINE1; break;
718 case LINE2: ret = SOUND_MASK_LINE2; break;
719 default: ret = 0;
720 }
721 return put_user(ret, p);
722
723 case MIXER_WRITE(SOUND_MIXER_VIDEO):
724 case MIXER_READ(SOUND_MIXER_VIDEO):
725 if (32000 != dev->oss.rate)
726 return -EINVAL;
727 return put_user(100 | 100 << 8, p);
728
729 case MIXER_WRITE(SOUND_MIXER_LINE1):
730 if (get_user(val, p))
731 return -EFAULT;
732 val &= 0xff;
733 val = (val <= 50) ? 50 : 100;
734 dev->oss.line1 = val;
735 mixer_level(dev,LINE1,dev->oss.line1);
736 /* fall throuth */
737 case MIXER_READ(SOUND_MIXER_LINE1):
738 return put_user(dev->oss.line1 | dev->oss.line1 << 8, p);
739
740 case MIXER_WRITE(SOUND_MIXER_LINE2):
741 if (get_user(val, p))
742 return -EFAULT;
743 val &= 0xff;
744 val = (val <= 50) ? 50 : 100;
745 dev->oss.line2 = val;
746 mixer_level(dev,LINE2,dev->oss.line2);
747 /* fall throuth */
748 case MIXER_READ(SOUND_MIXER_LINE2):
749 return put_user(dev->oss.line2 | dev->oss.line2 << 8, p);
750
751 default:
752 return -EINVAL;
753 }
754}
755
756struct file_operations saa7134_mixer_fops = {
757 .owner = THIS_MODULE,
758 .open = mixer_open,
759 .release = mixer_release,
760 .ioctl = mixer_ioctl,
761 .llseek = no_llseek,
762};
763
764/* ------------------------------------------------------------------ */
765
766int saa7134_oss_init1(struct saa7134_dev *dev)
767{
768 /* general */
769 init_MUTEX(&dev->oss.lock);
770 init_waitqueue_head(&dev->oss.wq);
771
772 switch (dev->pci->device) {
773 case PCI_DEVICE_ID_PHILIPS_SAA7133:
774 case PCI_DEVICE_ID_PHILIPS_SAA7135:
775 saa_writel(0x588 >> 2, 0x00000fff);
776 saa_writel(0x58c >> 2, 0x00543210);
777 saa_dsp_writel(dev, 0x46c >> 2, 0xbbbbbb);
778 break;
779 }
780
781 /* dsp */
782 dev->oss.rate = 32000;
783 if (oss_rate)
784 dev->oss.rate = oss_rate;
785 dev->oss.rate = (dev->oss.rate > 40000) ? 48000 : 32000;
786
787 /* mixer */
788 dev->oss.line1 = 50;
789 dev->oss.line2 = 50;
790 mixer_level(dev,LINE1,dev->oss.line1);
791 mixer_level(dev,LINE2,dev->oss.line2);
792 mixer_recsrc(dev, (dev->oss.rate == 32000) ? TV : LINE2);
793
794 return 0;
795}
796
797int saa7134_oss_fini(struct saa7134_dev *dev)
798{
799 /* nothing */
800 return 0;
801}
802
803void saa7134_irq_oss_done(struct saa7134_dev *dev, unsigned long status)
804{
805 int next_blk, reg = 0;
806
807 spin_lock(&dev->slock);
808 if (UNSET == dev->oss.dma_blk) {
809 dprintk("irq: recording stopped\n");
810 goto done;
811 }
812 if (0 != (status & 0x0f000000))
813 dprintk("irq: lost %ld\n", (status >> 24) & 0x0f);
814 if (0 == (status & 0x10000000)) {
815 /* odd */
816 if (0 == (dev->oss.dma_blk & 0x01))
817 reg = SAA7134_RS_BA1(6);
818 } else {
819 /* even */
820 if (0 == (dev->oss.dma_blk & 0x00))
821 reg = SAA7134_RS_BA2(6);
822 }
823 if (0 == reg) {
824 dprintk("irq: field oops [%s]\n",
825 (status & 0x10000000) ? "even" : "odd");
826 goto done;
827 }
828 if (dev->oss.read_count >= dev->oss.blksize * (dev->oss.blocks-2)) {
829 dprintk("irq: overrun [full=%d/%d]\n",dev->oss.read_count,
830 dev->oss.bufsize);
831 dsp_dma_stop(dev);
832 goto done;
833 }
834
835 /* next block addr */
836 next_blk = (dev->oss.dma_blk + 2) % dev->oss.blocks;
837 saa_writel(reg,next_blk * dev->oss.blksize);
838 if (oss_debug > 2)
839 dprintk("irq: ok, %s, next_blk=%d, addr=%x\n",
840 (status & 0x10000000) ? "even" : "odd ", next_blk,
841 next_blk * dev->oss.blksize);
842
843 /* update status & wake waiting readers */
844 dev->oss.dma_blk = (dev->oss.dma_blk + 1) % dev->oss.blocks;
845 dev->oss.read_count += dev->oss.blksize;
846 wake_up(&dev->oss.wq);
847
848 done:
849 spin_unlock(&dev->slock);
850}
851
852/* ----------------------------------------------------------- */
853/*
854 * Local variables:
855 * c-basic-offset: 8
856 * End:
857 */