1 /*
2 * $Id: saa7134-oss.c,v 1.11 2004/11/07 13:17:15 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/kernel.h>
28 #include <linux/slab.h>
29 #include <linux/soundcard.h>
30
31 #include "saa7134-reg.h"
32 #include "saa7134.h"
33
34 /* ------------------------------------------------------------------ */
35
36 static unsigned int oss_debug = 0;
37 module_param(oss_debug, int, 0644);
38 MODULE_PARM_DESC(oss_debug,"enable debug messages [oss]");
39
40 static unsigned int oss_rate = 0;
41 module_param(oss_rate, int, 0444);
42 MODULE_PARM_DESC(oss_rate,"sample rate (valid are: 32000,48000)");
43
44 #define dprintk(fmt, arg...) if (oss_debug) \
45 printk(KERN_DEBUG "%s/oss: " fmt, dev->name , ## arg)
46
47 /* ------------------------------------------------------------------ */
48
49 static int dsp_buffer_conf(struct saa7134_dev *dev, int blksize, int blocks)
50 {
51 blksize &= ~0xff;
52 if (blksize < 0x100)
53 blksize = 0x100;
54 if (blksize > 0x10000)
55 blksize = 0x10000;
56
57 if (blocks < 2)
58 blocks = 2;
59 while ((blksize * blocks) & ~PAGE_MASK)
60 blocks++;
61 if ((blksize * blocks) > 1024*1024)
62 blocks = 1024*1024 / blksize;
63
64 dev->oss.blocks = blocks;
65 dev->oss.blksize = blksize;
66 dev->oss.bufsize = blksize * blocks;
67
68 dprintk("buffer config: %d blocks / %d bytes, %d kB total\n",
69 blocks,blksize,blksize * blocks / 1024);
70 return 0;
71 }
72
73 static int dsp_buffer_init(struct saa7134_dev *dev)
74 {
75 int err;
76
77 if (!dev->oss.bufsize)
78 BUG();
79 videobuf_dma_init(&dev->oss.dma);
80 err = videobuf_dma_init_kernel(&dev->oss.dma, PCI_DMA_FROMDEVICE,
81 dev->oss.bufsize >> PAGE_SHIFT);
82 if (0 != err)
83 return err;
84 return 0;
85 }
86
87 static int dsp_buffer_free(struct saa7134_dev *dev)
88 {
89 if (!dev->oss.blksize)
90 BUG();
91 videobuf_dma_free(&dev->oss.dma);
92 dev->oss.blocks = 0;
93 dev->oss.blksize = 0;
94 dev->oss.bufsize = 0;
95 return 0;
96 }
97
98 static void dsp_dma_start(struct saa7134_dev *dev)
99 {
100 dev->oss.dma_blk = 0;
101 dev->oss.dma_running = 1;
102 saa7134_set_dmabits(dev);
103 }
104
105 static void dsp_dma_stop(struct saa7134_dev *dev)
106 {
107 dev->oss.dma_blk = -1;
108 dev->oss.dma_running = 0;
109 saa7134_set_dmabits(dev);
110 }
111
112 static int dsp_rec_start(struct saa7134_dev *dev)
113 {
114 int err, bswap, sign;
115 u32 fmt, control;
116 unsigned long flags;
117
118 /* prepare buffer */
119 if (0 != (err = videobuf_dma_pci_map(dev->pci,&dev->oss.dma)))
120 return err;
121 if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->oss.pt)))
122 goto fail1;
123 if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->oss.pt,
124 dev->oss.dma.sglist,
125 dev->oss.dma.sglen,
126 0)))
127 goto fail2;
128
129 /* sample format */
130 switch (dev->oss.afmt) {
131 case AFMT_U8:
132 case AFMT_S8: fmt = 0x00; break;
133 case AFMT_U16_LE:
134 case AFMT_U16_BE:
135 case AFMT_S16_LE:
136 case AFMT_S16_BE: fmt = 0x01; break;
137 default:
138 err = -EINVAL;
139 goto fail2;
140 }
141
142 switch (dev->oss.afmt) {
143 case AFMT_S8:
144 case AFMT_S16_LE:
145 case AFMT_S16_BE: sign = 1; break;
146 default: sign = 0; break;
147 }
148
149 switch (dev->oss.afmt) {
150 case AFMT_U16_BE:
151 case AFMT_S16_BE: bswap = 1; break;
152 default: bswap = 0; break;
153 }
154
155 switch (dev->pci->device) {
156 case PCI_DEVICE_ID_PHILIPS_SAA7134:
157 if (1 == dev->oss.channels)
158 fmt |= (1 << 3);
159 if (2 == dev->oss.channels)
160 fmt |= (3 << 3);
161 if (sign)
162 fmt |= 0x04;
163 fmt |= (TV == dev->oss.input) ? 0xc0 : 0x80;
164
165 saa_writeb(SAA7134_NUM_SAMPLES0, (dev->oss.blksize & 0x0000ff));
166 saa_writeb(SAA7134_NUM_SAMPLES1, (dev->oss.blksize & 0x00ff00) >> 8);
167 saa_writeb(SAA7134_NUM_SAMPLES2, (dev->oss.blksize & 0xff0000) >> 16);
168 saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt);
169 break;
170 case PCI_DEVICE_ID_PHILIPS_SAA7133:
171 case PCI_DEVICE_ID_PHILIPS_SAA7135:
172 if (1 == dev->oss.channels)
173 fmt |= (1 << 4);
174 if (2 == dev->oss.channels)
175 fmt |= (2 << 4);
176 if (!sign)
177 fmt |= 0x04;
178 saa_writel(0x588 >> 2, dev->oss.blksize -4);
179 saa_writel(0x58c >> 2, 0x543210 | (fmt << 24));
180 break;
181 }
182 dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n",
183 dev->oss.afmt, dev->oss.channels, fmt,
184 bswap ? 'b' : '-');
185
186 /* dma: setup channel 6 (= AUDIO) */
187 control = SAA7134_RS_CONTROL_BURST_16 |
188 SAA7134_RS_CONTROL_ME |
189 (dev->oss.pt.dma >> 12);
190 if (bswap)
191 control |= SAA7134_RS_CONTROL_BSWAP;
192 saa_writel(SAA7134_RS_BA1(6),0);
193 saa_writel(SAA7134_RS_BA2(6),dev->oss.blksize);
194 saa_writel(SAA7134_RS_PITCH(6),0);
195 saa_writel(SAA7134_RS_CONTROL(6),control);
196
197 /* start dma */
198 dev->oss.recording_on = 1;
199 spin_lock_irqsave(&dev->slock,flags);
200 dsp_dma_start(dev);
201 spin_unlock_irqrestore(&dev->slock,flags);
202 return 0;
203
204 fail2:
205 saa7134_pgtable_free(dev->pci,&dev->oss.pt);
206 fail1:
207 videobuf_dma_pci_unmap(dev->pci,&dev->oss.dma);
208 return err;
209 }
210
211 static int dsp_rec_stop(struct saa7134_dev *dev)
212 {
213 unsigned long flags;
214
215 dprintk("rec_stop dma_blk=%d\n",dev->oss.dma_blk);
216
217 /* stop dma */
218 dev->oss.recording_on = 0;
219 spin_lock_irqsave(&dev->slock,flags);
220 dsp_dma_stop(dev);
221 spin_unlock_irqrestore(&dev->slock,flags);
222
223 /* unlock buffer */
224 saa7134_pgtable_free(dev->pci,&dev->oss.pt);
225 videobuf_dma_pci_unmap(dev->pci,&dev->oss.dma);
226 return 0;
227 }
228
229 /* ------------------------------------------------------------------ */
230
231 static int dsp_open(struct inode *inode, struct file *file)
232 {
233 int minor = iminor(inode);
234 struct saa7134_dev *h,*dev = NULL;
235 struct list_head *list;
236 int err;
237
238 list_for_each(list,&saa7134_devlist) {
239 h = list_entry(list, struct saa7134_dev, devlist);
240 if (h->oss.minor_dsp == minor)
241 dev = h;
242 }
243 if (NULL == dev)
244 return -ENODEV;
245
246 down(&dev->oss.lock);
247 err = -EBUSY;
248 if (dev->oss.users_dsp)
249 goto fail1;
250 dev->oss.users_dsp++;
251 file->private_data = dev;
252
253 dev->oss.afmt = AFMT_U8;
254 dev->oss.channels = 1;
255 dev->oss.read_count = 0;
256 dev->oss.read_offset = 0;
257 dsp_buffer_conf(dev,PAGE_SIZE,64);
258 err = dsp_buffer_init(dev);
259 if (0 != err)
260 goto fail2;
261
262 up(&dev->oss.lock);
263 return 0;
264
265 fail2:
266 dev->oss.users_dsp--;
267 fail1:
268 up(&dev->oss.lock);
269 return err;
270 }
271
272 static int dsp_release(struct inode *inode, struct file *file)
273 {
274 struct saa7134_dev *dev = file->private_data;
275
276 down(&dev->oss.lock);
277 if (dev->oss.recording_on)
278 dsp_rec_stop(dev);
279 dsp_buffer_free(dev);
280 dev->oss.users_dsp--;
281 file->private_data = NULL;
282 up(&dev->oss.lock);
283 return 0;
284 }
285
286 static ssize_t dsp_read(struct file *file, char __user *buffer,
287 size_t count, loff_t *ppos)
288 {
289 struct saa7134_dev *dev = file->private_data;
290 DECLARE_WAITQUEUE(wait, current);
291 unsigned int bytes;
292 unsigned long flags;
293 int err,ret = 0;
294
295 add_wait_queue(&dev->oss.wq, &wait);
296 down(&dev->oss.lock);
297 while (count > 0) {
298 /* wait for data if needed */
299 if (0 == dev->oss.read_count) {
300 if (!dev->oss.recording_on) {
301 err = dsp_rec_start(dev);
302 if (err < 0) {
303 if (0 == ret)
304 ret = err;
305 break;
306 }
307 }
308 if (dev->oss.recording_on &&
309 !dev->oss.dma_running) {
310 /* recover from overruns */
311 spin_lock_irqsave(&dev->slock,flags);
312 dsp_dma_start(dev);
313 spin_unlock_irqrestore(&dev->slock,flags);
314 }
315 if (file->f_flags & O_NONBLOCK) {
316 if (0 == ret)
317 ret = -EAGAIN;
318 break;
319 }
320 up(&dev->oss.lock);
321 set_current_state(TASK_INTERRUPTIBLE);
322 if (0 == dev->oss.read_count)
323 schedule();
324 set_current_state(TASK_RUNNING);
325 down(&dev->oss.lock);
326 if (signal_pending(current)) {
327 if (0 == ret)
328 ret = -EINTR;
329 break;
330 }
331 }
332
333 /* copy data to userspace */
334 bytes = count;
335 if (bytes > dev->oss.read_count)
336 bytes = dev->oss.read_count;
337 if (bytes > dev->oss.bufsize - dev->oss.read_offset)
338 bytes = dev->oss.bufsize - dev->oss.read_offset;
339 if (copy_to_user(buffer + ret,
340 dev->oss.dma.vmalloc + dev->oss.read_offset,
341 bytes)) {
342 if (0 == ret)
343 ret = -EFAULT;
344 break;
345 }
346
347 ret += bytes;
348 count -= bytes;
349 dev->oss.read_count -= bytes;
350 dev->oss.read_offset += bytes;
351 if (dev->oss.read_offset == dev->oss.bufsize)
352 dev->oss.read_offset = 0;
353 }
354 up(&dev->oss.lock);
355 remove_wait_queue(&dev->oss.wq, &wait);
356 return ret;
357 }
358
359 static ssize_t dsp_write(struct file *file, const char __user *buffer,
360 size_t count, loff_t *ppos)
361 {
362 return -EINVAL;
363 }
364
365 static int dsp_ioctl(struct inode *inode, struct file *file,
366 unsigned int cmd, unsigned long arg)
367 {
368 struct saa7134_dev *dev = file->private_data;
369 void __user *argp = (void __user *) arg;
370 int __user *p = argp;
371 int val = 0;
372
373 if (oss_debug > 1)
374 saa7134_print_ioctl(dev->name,cmd);
375 switch (cmd) {
376 case OSS_GETVERSION:
377 return put_user(SOUND_VERSION, p);
378 case SNDCTL_DSP_GETCAPS:
379 return 0;
380
381 case SNDCTL_DSP_SPEED:
382 if (get_user(val, p))
383 return -EFAULT;
384 /* fall through */
385 case SOUND_PCM_READ_RATE:
386 return put_user(dev->oss.rate, p);
387
388 case SNDCTL_DSP_STEREO:
389 if (get_user(val, p))
390 return -EFAULT;
391 down(&dev->oss.lock);
392 dev->oss.channels = val ? 2 : 1;
393 if (dev->oss.recording_on) {
394 dsp_rec_stop(dev);
395 dsp_rec_start(dev);
396 }
397 up(&dev->oss.lock);
398 return put_user(dev->oss.channels-1, p);
399
400 case SNDCTL_DSP_CHANNELS:
401 if (get_user(val, p))
402 return -EFAULT;
403 if (val != 1 && val != 2)
404 return -EINVAL;
405 down(&dev->oss.lock);
406 dev->oss.channels = val;
407 if (dev->oss.recording_on) {
408 dsp_rec_stop(dev);
409 dsp_rec_start(dev);
410 }
411 up(&dev->oss.lock);
412 /* fall through */
413 case SOUND_PCM_READ_CHANNELS:
414 return put_user(dev->oss.channels, p);
415
416 case SNDCTL_DSP_GETFMTS: /* Returns a mask */
417 return put_user(AFMT_U8 | AFMT_S8 |
418 AFMT_U16_LE | AFMT_U16_BE |
419 AFMT_S16_LE | AFMT_S16_BE, p);
420
421 case SNDCTL_DSP_SETFMT: /* Selects ONE fmt */
422 if (get_user(val, p))
423 return -EFAULT;
424 switch (val) {
425 case AFMT_QUERY:
426 /* nothing to do */
427 break;
428 case AFMT_U8:
429 case AFMT_S8:
430 case AFMT_U16_LE:
431 case AFMT_U16_BE:
432 case AFMT_S16_LE:
433 case AFMT_S16_BE:
434 down(&dev->oss.lock);
435 dev->oss.afmt = val;
436 if (dev->oss.recording_on) {
437 dsp_rec_stop(dev);
438 dsp_rec_start(dev);
439 }
440 up(&dev->oss.lock);
441 return put_user(dev->oss.afmt, p);
442 default:
443 return -EINVAL;
444 }
445
446 case SOUND_PCM_READ_BITS:
447 switch (dev->oss.afmt) {
448 case AFMT_U8:
449 case AFMT_S8:
450 return put_user(8, p);
451 case AFMT_U16_LE:
452 case AFMT_U16_BE:
453 case AFMT_S16_LE:
454 case AFMT_S16_BE:
455 return put_user(16, p);
456 default:
457 return -EINVAL;
458 }
459
460 case SNDCTL_DSP_NONBLOCK:
461 file->f_flags |= O_NONBLOCK;
462 return 0;
463
464 case SNDCTL_DSP_RESET:
465 down(&dev->oss.lock);
466 if (dev->oss.recording_on)
467 dsp_rec_stop(dev);
468 up(&dev->oss.lock);
469 return 0;
470 case SNDCTL_DSP_GETBLKSIZE:
471 return put_user(dev->oss.blksize, p);
472
473 case SNDCTL_DSP_SETFRAGMENT:
474 if (get_user(val, p))
475 return -EFAULT;
476 if (dev->oss.recording_on)
477 return -EBUSY;
478 dsp_buffer_free(dev);
479 /* used to be arg >> 16 instead of val >> 16; fixed */
480 dsp_buffer_conf(dev,1 << (val & 0xffff), (val >> 16) & 0xffff);
481 dsp_buffer_init(dev);
482 return 0;
483
484 case SNDCTL_DSP_SYNC:
485 /* NOP */
486 return 0;
487
488 case SNDCTL_DSP_GETISPACE:
489 {
490 audio_buf_info info;
491 info.fragsize = dev->oss.blksize;
492 info.fragstotal = dev->oss.blocks;
493 info.bytes = dev->oss.read_count;
494 info.fragments = info.bytes / info.fragsize;
495 if (copy_to_user(argp, &info, sizeof(info)))
496 return -EFAULT;
497 return 0;
498 }
499 default:
500 return -EINVAL;
501 }
502 }
503
504 static unsigned int dsp_poll(struct file *file, struct poll_table_struct *wait)
505 {
506 struct saa7134_dev *dev = file->private_data;
507 unsigned int mask = 0;
508
509 poll_wait(file, &dev->oss.wq, wait);
510
511 if (0 == dev->oss.read_count) {
512 down(&dev->oss.lock);
513 if (!dev->oss.recording_on)
514 dsp_rec_start(dev);
515 up(&dev->oss.lock);
516 } else
517 mask |= (POLLIN | POLLRDNORM);
518 return mask;
519 }
520
521 struct file_operations saa7134_dsp_fops = {
522 .owner = THIS_MODULE,
523 .open = dsp_open,
524 .release = dsp_release,
525 .read = dsp_read,
526 .write = dsp_write,
527 .ioctl = dsp_ioctl,
528 .poll = dsp_poll,
529 .llseek = no_llseek,
530 };
531
532 /* ------------------------------------------------------------------ */
533
534 static int
535 mixer_recsrc_7134(struct saa7134_dev *dev)
536 {
537 int analog_io,rate;
538
539 switch (dev->oss.input) {
540 case TV:
541 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0xc0);
542 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00);
543 break;
544 case LINE1:
545 case LINE2:
546 analog_io = (LINE1 == dev->oss.input) ? 0x00 : 0x08;
547 rate = (32000 == dev->oss.rate) ? 0x01 : 0x03;
548 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, analog_io);
549 saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0x80);
550 saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, rate);
551 break;
552 }
553 return 0;
554 }
555
556 static int
557 mixer_recsrc_7133(struct saa7134_dev *dev)
558 {
559 u32 value = 0xbbbbbb;
560
561 switch (dev->oss.input) {
562 case TV:
563 value = 0xbbbb10; /* MAIN */
564 break;
565 case LINE1:
566 value = 0xbbbb32; /* AUX1 */
567 break;
568 case LINE2:
569 value = 0xbbbb54; /* AUX2 */
570 break;
571 }
572 saa_dsp_writel(dev, 0x46c >> 2, value);
573 return 0;
574 }
575
576 static int
577 mixer_recsrc(struct saa7134_dev *dev, enum saa7134_audio_in src)
578 {
579 static const char *iname[] = { "Oops", "TV", "LINE1", "LINE2" };
580
581 dev->oss.count++;
582 dev->oss.input = src;
583 dprintk("mixer input = %s\n",iname[dev->oss.input]);
584
585 switch (dev->pci->device) {
586 case PCI_DEVICE_ID_PHILIPS_SAA7134:
587 mixer_recsrc_7134(dev);
588 break;
589 case PCI_DEVICE_ID_PHILIPS_SAA7133:
590 case PCI_DEVICE_ID_PHILIPS_SAA7135:
591 mixer_recsrc_7133(dev);
592 break;
593 }
594 return 0;
595 }
596
597 static int
598 mixer_level(struct saa7134_dev *dev, enum saa7134_audio_in src, int level)
599 {
600 switch (dev->pci->device) {
601 case PCI_DEVICE_ID_PHILIPS_SAA7134:
602 switch (src) {
603 case TV:
604 /* nothing */
605 break;
606 case LINE1:
607 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x10,
608 (100 == level) ? 0x00 : 0x10);
609 break;
610 case LINE2:
611 saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x20,
612 (100 == level) ? 0x00 : 0x20);
613 break;
614 }
615 break;
616 case PCI_DEVICE_ID_PHILIPS_SAA7133:
617 case PCI_DEVICE_ID_PHILIPS_SAA7135:
618 /* nothing */
619 break;
620 }
621 return 0;
622 }
623
624 /* ------------------------------------------------------------------ */
625
626 static int mixer_open(struct inode *inode, struct file *file)
627 {
628 int minor = iminor(inode);
629 struct saa7134_dev *h,*dev = NULL;
630 struct list_head *list;
631
632 list_for_each(list,&saa7134_devlist) {
633 h = list_entry(list, struct saa7134_dev, devlist);
634 if (h->oss.minor_mixer == minor)
635 dev = h;
636 }
637 if (NULL == dev)
638 return -ENODEV;
639
640 file->private_data = dev;
641 return 0;
642 }
643
644 static int mixer_release(struct inode *inode, struct file *file)
645 {
646 file->private_data = NULL;
647 return 0;
648 }
649
650 static int mixer_ioctl(struct inode *inode, struct file *file,
651 unsigned int cmd, unsigned long arg)
652 {
653 struct saa7134_dev *dev = file->private_data;
654 enum saa7134_audio_in input;
655 int val,ret;
656 void __user *argp = (void __user *) arg;
657 int __user *p = argp;
658
659 if (oss_debug > 1)
660 saa7134_print_ioctl(dev->name,cmd);
661 switch (cmd) {
662 case OSS_GETVERSION:
663 return put_user(SOUND_VERSION, p);
664 case SOUND_MIXER_INFO:
665 {
666 mixer_info info;
667 memset(&info,0,sizeof(info));
668 strlcpy(info.id, "TV audio", sizeof(info.id));
669 strlcpy(info.name, dev->name, sizeof(info.name));
670 info.modify_counter = dev->oss.count;
671 if (copy_to_user(argp, &info, sizeof(info)))
672 return -EFAULT;
673 return 0;
674 }
675 case SOUND_OLD_MIXER_INFO:
676 {
677 _old_mixer_info info;
678 memset(&info,0,sizeof(info));
679 strlcpy(info.id, "TV audio", sizeof(info.id));
680 strlcpy(info.name, dev->name, sizeof(info.name));
681 if (copy_to_user(argp, &info, sizeof(info)))
682 return -EFAULT;
683 return 0;
684 }
685 case MIXER_READ(SOUND_MIXER_CAPS):
686 return put_user(SOUND_CAP_EXCL_INPUT, p);
687 case MIXER_READ(SOUND_MIXER_STEREODEVS):
688 return put_user(0, p);
689 case MIXER_READ(SOUND_MIXER_RECMASK):
690 case MIXER_READ(SOUND_MIXER_DEVMASK):
691 val = SOUND_MASK_LINE1 | SOUND_MASK_LINE2;
692 if (32000 == dev->oss.rate)
693 val |= SOUND_MASK_VIDEO;
694 return put_user(val, p);
695
696 case MIXER_WRITE(SOUND_MIXER_RECSRC):
697 if (get_user(val, p))
698 return -EFAULT;
699 input = dev->oss.input;
700 if (32000 == dev->oss.rate &&
701 val & SOUND_MASK_VIDEO && dev->oss.input != TV)
702 input = TV;
703 if (val & SOUND_MASK_LINE1 && dev->oss.input != LINE1)
704 input = LINE1;
705 if (val & SOUND_MASK_LINE2 && dev->oss.input != LINE2)
706 input = LINE2;
707 if (input != dev->oss.input)
708 mixer_recsrc(dev,input);
709 /* fall throuth */
710 case MIXER_READ(SOUND_MIXER_RECSRC):
711 switch (dev->oss.input) {
712 case TV: ret = SOUND_MASK_VIDEO; break;
713 case LINE1: ret = SOUND_MASK_LINE1; break;
714 case LINE2: ret = SOUND_MASK_LINE2; break;
715 default: ret = 0;
716 }
717 return put_user(ret, p);
718
719 case MIXER_WRITE(SOUND_MIXER_VIDEO):
720 case MIXER_READ(SOUND_MIXER_VIDEO):
721 if (32000 != dev->oss.rate)
722 return -EINVAL;
723 return put_user(100 | 100 << 8, p);
724
725 case MIXER_WRITE(SOUND_MIXER_LINE1):
726 if (get_user(val, p))
727 return -EFAULT;
728 val &= 0xff;
729 val = (val <= 50) ? 50 : 100;
730 dev->oss.line1 = val;
731 mixer_level(dev,LINE1,dev->oss.line1);
732 /* fall throuth */
733 case MIXER_READ(SOUND_MIXER_LINE1):
734 return put_user(dev->oss.line1 | dev->oss.line1 << 8, p);
735
736 case MIXER_WRITE(SOUND_MIXER_LINE2):
737 if (get_user(val, p))
738 return -EFAULT;
739 val &= 0xff;
740 val = (val <= 50) ? 50 : 100;
741 dev->oss.line2 = val;
742 mixer_level(dev,LINE2,dev->oss.line2);
743 /* fall throuth */
744 case MIXER_READ(SOUND_MIXER_LINE2):
745 return put_user(dev->oss.line2 | dev->oss.line2 << 8, p);
746
747 default:
748 return -EINVAL;
749 }
750 }
751
752 struct file_operations saa7134_mixer_fops = {
753 .owner = THIS_MODULE,
754 .open = mixer_open,
755 .release = mixer_release,
756 .ioctl = mixer_ioctl,
757 .llseek = no_llseek,
758 };
759
760 /* ------------------------------------------------------------------ */
761
762 int saa7134_oss_init1(struct saa7134_dev *dev)
763 {
764 /* general */
765 init_MUTEX(&dev->oss.lock);
766 init_waitqueue_head(&dev->oss.wq);
767
768 switch (dev->pci->device) {
769 case PCI_DEVICE_ID_PHILIPS_SAA7133:
770 case PCI_DEVICE_ID_PHILIPS_SAA7135:
771 saa_writel(0x588 >> 2, 0x00000fff);
772 saa_writel(0x58c >> 2, 0x00543210);
773 saa_dsp_writel(dev, 0x46c >> 2, 0xbbbbbb);
774 break;
775 }
776
777 /* dsp */
778 dev->oss.rate = 32000;
779 if (oss_rate)
780 dev->oss.rate = oss_rate;
781 dev->oss.rate = (dev->oss.rate > 40000) ? 48000 : 32000;
782
783 /* mixer */
784 dev->oss.line1 = 50;
785 dev->oss.line2 = 50;
786 mixer_level(dev,LINE1,dev->oss.line1);
787 mixer_level(dev,LINE2,dev->oss.line2);
788 mixer_recsrc(dev, (dev->oss.rate == 32000) ? TV : LINE2);
789
790 return 0;
791 }
792
793 int saa7134_oss_fini(struct saa7134_dev *dev)
794 {
795 /* nothing */
796 return 0;
797 }
798
799 void saa7134_irq_oss_done(struct saa7134_dev *dev, unsigned long status)
800 {
801 int next_blk, reg = 0;
802
803 spin_lock(&dev->slock);
804 if (UNSET == dev->oss.dma_blk) {
805 dprintk("irq: recording stopped\n");
806 goto done;
807 }
808 if (0 != (status & 0x0f000000))
809 dprintk("irq: lost %ld\n", (status >> 24) & 0x0f);
810 if (0 == (status & 0x10000000)) {
811 /* odd */
812 if (0 == (dev->oss.dma_blk & 0x01))
813 reg = SAA7134_RS_BA1(6);
814 } else {
815 /* even */
816 if (0 == (dev->oss.dma_blk & 0x00))
817 reg = SAA7134_RS_BA2(6);
818 }
819 if (0 == reg) {
820 dprintk("irq: field oops [%s]\n",
821 (status & 0x10000000) ? "even" : "odd");
822 goto done;
823 }
824 if (dev->oss.read_count >= dev->oss.blksize * (dev->oss.blocks-2)) {
825 dprintk("irq: overrun [full=%d/%d]\n",dev->oss.read_count,
826 dev->oss.bufsize);
827 dsp_dma_stop(dev);
828 goto done;
829 }
830
831 /* next block addr */
832 next_blk = (dev->oss.dma_blk + 2) % dev->oss.blocks;
833 saa_writel(reg,next_blk * dev->oss.blksize);
834 if (oss_debug > 2)
835 dprintk("irq: ok, %s, next_blk=%d, addr=%x\n",
836 (status & 0x10000000) ? "even" : "odd ", next_blk,
837 next_blk * dev->oss.blksize);
838
839 /* update status & wake waiting readers */
840 dev->oss.dma_blk = (dev->oss.dma_blk + 1) % dev->oss.blocks;
841 dev->oss.read_count += dev->oss.blksize;
842 wake_up(&dev->oss.wq);
843
844 done:
845 spin_unlock(&dev->slock);
846 }
847
848 /* ----------------------------------------------------------- */
849 /*
850 * Local variables:
851 * c-basic-offset: 8
852 * End:
853 */
854
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