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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / sound / isa / msnd / msnd.c
blob42b985bbd73beac8a89aff25b67c107cea018bd0
1 /*********************************************************************
2 *
3 * 2002/06/30 Karsten Wiese:
4 * removed kernel-version dependencies.
5 * ripped from linux kernel 2.4.18 (OSS Implementation) by me.
6 * In the OSS Version, this file is compiled to a separate MODULE,
7 * that is used by the pinnacle and the classic driver.
8 * since there is no classic driver for alsa yet (i dont have a classic
9 * & writing one blindfold is difficult) this file's object is statically
10 * linked into the pinnacle-driver-module for now. look for the string
11 * "uncomment this to make this a module again"
12 * to do guess what.
13 *
14 * the following is a copy of the 2.4.18 OSS FREE file-heading comment:
15 *
16 * msnd.c - Driver Base
17 *
18 * Turtle Beach MultiSound Sound Card Driver for Linux
19 *
20 * Copyright (C) 1998 Andrew Veliath
21 *
22 * This program is free software; you can redistribute it and/or modify
23 * it under the terms of the GNU General Public License as published by
24 * the Free Software Foundation; either version 2 of the License, or
25 * (at your option) any later version.
26 *
27 * This program is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 * GNU General Public License for more details.
31 *
32 * You should have received a copy of the GNU General Public License
33 * along with this program; if not, write to the Free Software
34 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
35 *
36 ********************************************************************/
37
38 #include <linux/kernel.h>
39 #include <linux/types.h>
40 #include <linux/interrupt.h>
41 #include <linux/io.h>
42 #include <linux/fs.h>
43 #include <linux/delay.h>
44
45 #include <sound/core.h>
46 #include <sound/initval.h>
47 #include <sound/pcm.h>
48 #include <sound/pcm_params.h>
49
50 #include "msnd.h"
51
52 #define LOGNAME "msnd"
53
54
55 void snd_msnd_init_queue(void *base, int start, int size)
56 {
57 writew(PCTODSP_BASED(start), base + JQS_wStart);
58 writew(PCTODSP_OFFSET(size) - 1, base + JQS_wSize);
59 writew(0, base + JQS_wHead);
60 writew(0, base + JQS_wTail);
61 }
62 EXPORT_SYMBOL(snd_msnd_init_queue);
63
64 static int snd_msnd_wait_TXDE(struct snd_msnd *dev)
65 {
66 unsigned int io = dev->io;
67 int timeout = 1000;
68
69 while (timeout-- > 0)
70 if (inb(io + HP_ISR) & HPISR_TXDE)
71 return 0;
72
73 return -EIO;
74 }
75
76 static int snd_msnd_wait_HC0(struct snd_msnd *dev)
77 {
78 unsigned int io = dev->io;
79 int timeout = 1000;
80
81 while (timeout-- > 0)
82 if (!(inb(io + HP_CVR) & HPCVR_HC))
83 return 0;
84
85 return -EIO;
86 }
87
88 int snd_msnd_send_dsp_cmd(struct snd_msnd *dev, u8 cmd)
89 {
90 unsigned long flags;
91
92 spin_lock_irqsave(&dev->lock, flags);
93 if (snd_msnd_wait_HC0(dev) == 0) {
94 outb(cmd, dev->io + HP_CVR);
95 spin_unlock_irqrestore(&dev->lock, flags);
96 return 0;
97 }
98 spin_unlock_irqrestore(&dev->lock, flags);
99
100 snd_printd(KERN_ERR LOGNAME ": Send DSP command timeout\n");
101
102 return -EIO;
103 }
104 EXPORT_SYMBOL(snd_msnd_send_dsp_cmd);
105
106 int snd_msnd_send_word(struct snd_msnd *dev, unsigned char high,
107 unsigned char mid, unsigned char low)
108 {
109 unsigned int io = dev->io;
110
111 if (snd_msnd_wait_TXDE(dev) == 0) {
112 outb(high, io + HP_TXH);
113 outb(mid, io + HP_TXM);
114 outb(low, io + HP_TXL);
115 return 0;
116 }
117
118 snd_printd(KERN_ERR LOGNAME ": Send host word timeout\n");
119
120 return -EIO;
121 }
122 EXPORT_SYMBOL(snd_msnd_send_word);
123
124 int snd_msnd_upload_host(struct snd_msnd *dev, const u8 *bin, int len)
125 {
126 int i;
127
128 if (len % 3 != 0) {
129 snd_printk(KERN_ERR LOGNAME
130 ": Upload host data not multiple of 3!\n");
131 return -EINVAL;
132 }
133
134 for (i = 0; i < len; i += 3)
135 if (snd_msnd_send_word(dev, bin[i], bin[i + 1], bin[i + 2]))
136 return -EIO;
137
138 inb(dev->io + HP_RXL);
139 inb(dev->io + HP_CVR);
140
141 return 0;
142 }
143 EXPORT_SYMBOL(snd_msnd_upload_host);
144
145 int snd_msnd_enable_irq(struct snd_msnd *dev)
146 {
147 unsigned long flags;
148
149 if (dev->irq_ref++)
150 return 0;
151
152 snd_printdd(LOGNAME ": Enabling IRQ\n");
153
154 spin_lock_irqsave(&dev->lock, flags);
155 if (snd_msnd_wait_TXDE(dev) == 0) {
156 outb(inb(dev->io + HP_ICR) | HPICR_TREQ, dev->io + HP_ICR);
157 if (dev->type == msndClassic)
158 outb(dev->irqid, dev->io + HP_IRQM);
159
160 outb(inb(dev->io + HP_ICR) & ~HPICR_TREQ, dev->io + HP_ICR);
161 outb(inb(dev->io + HP_ICR) | HPICR_RREQ, dev->io + HP_ICR);
162 enable_irq(dev->irq);
163 snd_msnd_init_queue(dev->DSPQ, dev->dspq_data_buff,
164 dev->dspq_buff_size);
165 spin_unlock_irqrestore(&dev->lock, flags);
166 return 0;
167 }
168 spin_unlock_irqrestore(&dev->lock, flags);
169
170 snd_printd(KERN_ERR LOGNAME ": Enable IRQ failed\n");
171
172 return -EIO;
173 }
174 EXPORT_SYMBOL(snd_msnd_enable_irq);
175
176 int snd_msnd_disable_irq(struct snd_msnd *dev)
177 {
178 unsigned long flags;
179
180 if (--dev->irq_ref > 0)
181 return 0;
182
183 if (dev->irq_ref < 0)
184 snd_printd(KERN_WARNING LOGNAME ": IRQ ref count is %d\n",
185 dev->irq_ref);
186
187 snd_printdd(LOGNAME ": Disabling IRQ\n");
188
189 spin_lock_irqsave(&dev->lock, flags);
190 if (snd_msnd_wait_TXDE(dev) == 0) {
191 outb(inb(dev->io + HP_ICR) & ~HPICR_RREQ, dev->io + HP_ICR);
192 if (dev->type == msndClassic)
193 outb(HPIRQ_NONE, dev->io + HP_IRQM);
194 disable_irq(dev->irq);
195 spin_unlock_irqrestore(&dev->lock, flags);
196 return 0;
197 }
198 spin_unlock_irqrestore(&dev->lock, flags);
199
200 snd_printd(KERN_ERR LOGNAME ": Disable IRQ failed\n");
201
202 return -EIO;
203 }
204 EXPORT_SYMBOL(snd_msnd_disable_irq);
205
206 static inline long get_play_delay_jiffies(struct snd_msnd *chip, long size)
207 {
208 long tmp = (size * HZ * chip->play_sample_size) / 8;
209 return tmp / (chip->play_sample_rate * chip->play_channels);
210 }
211
212 static void snd_msnd_dsp_write_flush(struct snd_msnd *chip)
213 {
214 if (!(chip->mode & FMODE_WRITE) || !test_bit(F_WRITING, &chip->flags))
215 return;
216 set_bit(F_WRITEFLUSH, &chip->flags);
217 /* interruptible_sleep_on_timeout(
218 &chip->writeflush,
219 get_play_delay_jiffies(&chip, chip->DAPF.len));*/
220 clear_bit(F_WRITEFLUSH, &chip->flags);
221 if (!signal_pending(current))
222 schedule_timeout_interruptible(
223 get_play_delay_jiffies(chip, chip->play_period_bytes));
224 clear_bit(F_WRITING, &chip->flags);
225 }
226
227 void snd_msnd_dsp_halt(struct snd_msnd *chip, struct file *file)
228 {
229 if ((file ? file->f_mode : chip->mode) & FMODE_READ) {
230 clear_bit(F_READING, &chip->flags);
231 snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP);
232 snd_msnd_disable_irq(chip);
233 if (file) {
234 snd_printd(KERN_INFO LOGNAME
235 ": Stopping read for %p\n", file);
236 chip->mode &= ~FMODE_READ;
237 }
238 clear_bit(F_AUDIO_READ_INUSE, &chip->flags);
239 }
240 if ((file ? file->f_mode : chip->mode) & FMODE_WRITE) {
241 if (test_bit(F_WRITING, &chip->flags)) {
242 snd_msnd_dsp_write_flush(chip);
243 snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP);
244 }
245 snd_msnd_disable_irq(chip);
246 if (file) {
247 snd_printd(KERN_INFO
248 LOGNAME ": Stopping write for %p\n", file);
249 chip->mode &= ~FMODE_WRITE;
250 }
251 clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags);
252 }
253 }
254 EXPORT_SYMBOL(snd_msnd_dsp_halt);
255
256
257 int snd_msnd_DARQ(struct snd_msnd *chip, int bank)
258 {
259 int /*size, n,*/ timeout = 3;
260 u16 wTmp;
261 /* void *DAQD; */
262
263 /* Increment the tail and check for queue wrap */
264 wTmp = readw(chip->DARQ + JQS_wTail) + PCTODSP_OFFSET(DAQDS__size);
265 if (wTmp > readw(chip->DARQ + JQS_wSize))
266 wTmp = 0;
267 while (wTmp == readw(chip->DARQ + JQS_wHead) && timeout--)
268 udelay(1);
269
270 if (chip->capturePeriods == 2) {
271 void *pDAQ = chip->mappedbase + DARQ_DATA_BUFF +
272 bank * DAQDS__size + DAQDS_wStart;
273 unsigned short offset = 0x3000 + chip->capturePeriodBytes;
274
275 if (readw(pDAQ) != PCTODSP_BASED(0x3000))
276 offset = 0x3000;
277 writew(PCTODSP_BASED(offset), pDAQ);
278 }
279
280 writew(wTmp, chip->DARQ + JQS_wTail);
281
282
283 return 1;
284 }
285 EXPORT_SYMBOL(snd_msnd_DARQ);
286
287 int snd_msnd_DAPQ(struct snd_msnd *chip, int start)
288 {
289 u16 DAPQ_tail;
290 int protect = start, nbanks = 0;
291 void *DAQD;
292 static int play_banks_submitted;
293 /* unsigned long flags;
294 spin_lock_irqsave(&chip->lock, flags); not necessary */
295
296 DAPQ_tail = readw(chip->DAPQ + JQS_wTail);
297 while (DAPQ_tail != readw(chip->DAPQ + JQS_wHead) || start) {
298 int bank_num = DAPQ_tail / PCTODSP_OFFSET(DAQDS__size);
299
300 if (start) {
301 start = 0;
302 play_banks_submitted = 0;
303 }
304
305 /* Get our digital audio queue struct */
306 DAQD = bank_num * DAQDS__size + chip->mappedbase +
307 DAPQ_DATA_BUFF;
308
309 /* Write size of this bank */
310 writew(chip->play_period_bytes, DAQD + DAQDS_wSize);
311 if (play_banks_submitted < 3)
312 ++play_banks_submitted;
313 else if (chip->playPeriods == 2) {
314 unsigned short offset = chip->play_period_bytes;
315
316 if (readw(DAQD + DAQDS_wStart) != PCTODSP_BASED(0x0))
317 offset = 0;
318
319 writew(PCTODSP_BASED(offset), DAQD + DAQDS_wStart);
320 }
321 ++nbanks;
322
323 /* Then advance the tail */
324 /*
325 if (protect)
326 snd_printd(KERN_INFO "B %X %lX\n",
327 bank_num, xtime.tv_usec);
328 */
329
330 DAPQ_tail = (++bank_num % 3) * PCTODSP_OFFSET(DAQDS__size);
331 writew(DAPQ_tail, chip->DAPQ + JQS_wTail);
332 /* Tell the DSP to play the bank */
333 snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_START);
334 if (protect)
335 if (2 == bank_num)
336 break;
337 }
338 /*
339 if (protect)
340 snd_printd(KERN_INFO "%lX\n", xtime.tv_usec);
341 */
342 /* spin_unlock_irqrestore(&chip->lock, flags); not necessary */
343 return nbanks;
344 }
345 EXPORT_SYMBOL(snd_msnd_DAPQ);
346
347 static void snd_msnd_play_reset_queue(struct snd_msnd *chip,
348 unsigned int pcm_periods,
349 unsigned int pcm_count)
350 {
351 int n;
352 void *pDAQ = chip->mappedbase + DAPQ_DATA_BUFF;
353
354 chip->last_playbank = -1;
355 chip->playLimit = pcm_count * (pcm_periods - 1);
356 chip->playPeriods = pcm_periods;
357 writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DAPQ + JQS_wHead);
358 writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DAPQ + JQS_wTail);
359
360 chip->play_period_bytes = pcm_count;
361
362 for (n = 0; n < pcm_periods; ++n, pDAQ += DAQDS__size) {
363 writew(PCTODSP_BASED((u32)(pcm_count * n)),
364 pDAQ + DAQDS_wStart);
365 writew(0, pDAQ + DAQDS_wSize);
366 writew(1, pDAQ + DAQDS_wFormat);
367 writew(chip->play_sample_size, pDAQ + DAQDS_wSampleSize);
368 writew(chip->play_channels, pDAQ + DAQDS_wChannels);
369 writew(chip->play_sample_rate, pDAQ + DAQDS_wSampleRate);
370 writew(HIMT_PLAY_DONE * 0x100 + n, pDAQ + DAQDS_wIntMsg);
371 writew(n, pDAQ + DAQDS_wFlags);
372 }
373 }
374
375 static void snd_msnd_capture_reset_queue(struct snd_msnd *chip,
376 unsigned int pcm_periods,
377 unsigned int pcm_count)
378 {
379 int n;
380 void *pDAQ;
381 /* unsigned long flags; */
382
383 /* snd_msnd_init_queue(chip->DARQ, DARQ_DATA_BUFF, DARQ_BUFF_SIZE); */
384
385 chip->last_recbank = 2;
386 chip->captureLimit = pcm_count * (pcm_periods - 1);
387 chip->capturePeriods = pcm_periods;
388 writew(PCTODSP_OFFSET(0 * DAQDS__size), chip->DARQ + JQS_wHead);
389 writew(PCTODSP_OFFSET(chip->last_recbank * DAQDS__size),
390 chip->DARQ + JQS_wTail);
391
392
393 chip->capturePeriodBytes = pcm_count;
394 snd_printdd("snd_msnd_capture_reset_queue() %i\n", pcm_count);
395
396 pDAQ = chip->mappedbase + DARQ_DATA_BUFF;
397
398 for (n = 0; n < pcm_periods; ++n, pDAQ += DAQDS__size) {
399 u32 tmp = pcm_count * n;
400
401 writew(PCTODSP_BASED(tmp + 0x3000), pDAQ + DAQDS_wStart);
402 writew(pcm_count, pDAQ + DAQDS_wSize);
403 writew(1, pDAQ + DAQDS_wFormat);
404 writew(chip->capture_sample_size, pDAQ + DAQDS_wSampleSize);
405 writew(chip->capture_channels, pDAQ + DAQDS_wChannels);
406 writew(chip->capture_sample_rate, pDAQ + DAQDS_wSampleRate);
407 writew(HIMT_RECORD_DONE * 0x100 + n, pDAQ + DAQDS_wIntMsg);
408 writew(n, pDAQ + DAQDS_wFlags);
409 }
410 }
411
412 static struct snd_pcm_hardware snd_msnd_playback = {
413 .info = SNDRV_PCM_INFO_MMAP |
414 SNDRV_PCM_INFO_INTERLEAVED |
415 SNDRV_PCM_INFO_MMAP_VALID |
416 SNDRV_PCM_INFO_BATCH,
417 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
418 .rates = SNDRV_PCM_RATE_8000_48000,
419 .rate_min = 8000,
420 .rate_max = 48000,
421 .channels_min = 1,
422 .channels_max = 2,
423 .buffer_bytes_max = 0x3000,
424 .period_bytes_min = 0x40,
425 .period_bytes_max = 0x1800,
426 .periods_min = 2,
427 .periods_max = 3,
428 .fifo_size = 0,
429 };
430
431 static struct snd_pcm_hardware snd_msnd_capture = {
432 .info = SNDRV_PCM_INFO_MMAP |
433 SNDRV_PCM_INFO_INTERLEAVED |
434 SNDRV_PCM_INFO_MMAP_VALID |
435 SNDRV_PCM_INFO_BATCH,
436 .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
437 .rates = SNDRV_PCM_RATE_8000_48000,
438 .rate_min = 8000,
439 .rate_max = 48000,
440 .channels_min = 1,
441 .channels_max = 2,
442 .buffer_bytes_max = 0x3000,
443 .period_bytes_min = 0x40,
444 .period_bytes_max = 0x1800,
445 .periods_min = 2,
446 .periods_max = 3,
447 .fifo_size = 0,
448 };
449
450
451 static int snd_msnd_playback_open(struct snd_pcm_substream *substream)
452 {
453 struct snd_pcm_runtime *runtime = substream->runtime;
454 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
455
456 set_bit(F_AUDIO_WRITE_INUSE, &chip->flags);
457 clear_bit(F_WRITING, &chip->flags);
458 snd_msnd_enable_irq(chip);
459
460 runtime->dma_area = chip->mappedbase;
461 runtime->dma_bytes = 0x3000;
462
463 chip->playback_substream = substream;
464 runtime->hw = snd_msnd_playback;
465 return 0;
466 }
467
468 static int snd_msnd_playback_close(struct snd_pcm_substream *substream)
469 {
470 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
471
472 snd_msnd_disable_irq(chip);
473 clear_bit(F_AUDIO_WRITE_INUSE, &chip->flags);
474 return 0;
475 }
476
477
478 static int snd_msnd_playback_hw_params(struct snd_pcm_substream *substream,
479 struct snd_pcm_hw_params *params)
480 {
481 int i;
482 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
483 void *pDAQ = chip->mappedbase + DAPQ_DATA_BUFF;
484
485 chip->play_sample_size = snd_pcm_format_width(params_format(params));
486 chip->play_channels = params_channels(params);
487 chip->play_sample_rate = params_rate(params);
488
489 for (i = 0; i < 3; ++i, pDAQ += DAQDS__size) {
490 writew(chip->play_sample_size, pDAQ + DAQDS_wSampleSize);
491 writew(chip->play_channels, pDAQ + DAQDS_wChannels);
492 writew(chip->play_sample_rate, pDAQ + DAQDS_wSampleRate);
493 }
494 /* dont do this here:
495 * snd_msnd_calibrate_adc(chip->play_sample_rate);
496 */
497
498 return 0;
499 }
500
501 static int snd_msnd_playback_prepare(struct snd_pcm_substream *substream)
502 {
503 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
504 unsigned int pcm_size = snd_pcm_lib_buffer_bytes(substream);
505 unsigned int pcm_count = snd_pcm_lib_period_bytes(substream);
506 unsigned int pcm_periods = pcm_size / pcm_count;
507
508 snd_msnd_play_reset_queue(chip, pcm_periods, pcm_count);
509 chip->playDMAPos = 0;
510 return 0;
511 }
512
513 static int snd_msnd_playback_trigger(struct snd_pcm_substream *substream,
514 int cmd)
515 {
516 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
517 int result = 0;
518
519 if (cmd == SNDRV_PCM_TRIGGER_START) {
520 snd_printdd("snd_msnd_playback_trigger(START)\n");
521 chip->banksPlayed = 0;
522 set_bit(F_WRITING, &chip->flags);
523 snd_msnd_DAPQ(chip, 1);
524 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
525 snd_printdd("snd_msnd_playback_trigger(STop)\n");
526 /* interrupt diagnostic, comment this out later */
527 clear_bit(F_WRITING, &chip->flags);
528 snd_msnd_send_dsp_cmd(chip, HDEX_PLAY_STOP);
529 } else {
530 snd_printd(KERN_ERR "snd_msnd_playback_trigger(?????)\n");
531 result = -EINVAL;
532 }
533
534 snd_printdd("snd_msnd_playback_trigger() ENDE\n");
535 return result;
536 }
537
538 static snd_pcm_uframes_t
539 snd_msnd_playback_pointer(struct snd_pcm_substream *substream)
540 {
541 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
542
543 return bytes_to_frames(substream->runtime, chip->playDMAPos);
544 }
545
546
547 static struct snd_pcm_ops snd_msnd_playback_ops = {
548 .open = snd_msnd_playback_open,
549 .close = snd_msnd_playback_close,
550 .ioctl = snd_pcm_lib_ioctl,
551 .hw_params = snd_msnd_playback_hw_params,
552 .prepare = snd_msnd_playback_prepare,
553 .trigger = snd_msnd_playback_trigger,
554 .pointer = snd_msnd_playback_pointer,
555 };
556
557 static int snd_msnd_capture_open(struct snd_pcm_substream *substream)
558 {
559 struct snd_pcm_runtime *runtime = substream->runtime;
560 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
561
562 set_bit(F_AUDIO_READ_INUSE, &chip->flags);
563 snd_msnd_enable_irq(chip);
564 runtime->dma_area = chip->mappedbase + 0x3000;
565 runtime->dma_bytes = 0x3000;
566 memset(runtime->dma_area, 0, runtime->dma_bytes);
567 chip->capture_substream = substream;
568 runtime->hw = snd_msnd_capture;
569 return 0;
570 }
571
572 static int snd_msnd_capture_close(struct snd_pcm_substream *substream)
573 {
574 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
575
576 snd_msnd_disable_irq(chip);
577 clear_bit(F_AUDIO_READ_INUSE, &chip->flags);
578 return 0;
579 }
580
581 static int snd_msnd_capture_prepare(struct snd_pcm_substream *substream)
582 {
583 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
584 unsigned int pcm_size = snd_pcm_lib_buffer_bytes(substream);
585 unsigned int pcm_count = snd_pcm_lib_period_bytes(substream);
586 unsigned int pcm_periods = pcm_size / pcm_count;
587
588 snd_msnd_capture_reset_queue(chip, pcm_periods, pcm_count);
589 chip->captureDMAPos = 0;
590 return 0;
591 }
592
593 static int snd_msnd_capture_trigger(struct snd_pcm_substream *substream,
594 int cmd)
595 {
596 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
597
598 if (cmd == SNDRV_PCM_TRIGGER_START) {
599 chip->last_recbank = -1;
600 set_bit(F_READING, &chip->flags);
601 if (snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_START) == 0)
602 return 0;
603
604 clear_bit(F_READING, &chip->flags);
605 } else if (cmd == SNDRV_PCM_TRIGGER_STOP) {
606 clear_bit(F_READING, &chip->flags);
607 snd_msnd_send_dsp_cmd(chip, HDEX_RECORD_STOP);
608 return 0;
609 }
610 return -EINVAL;
611 }
612
613
614 static snd_pcm_uframes_t
615 snd_msnd_capture_pointer(struct snd_pcm_substream *substream)
616 {
617 struct snd_pcm_runtime *runtime = substream->runtime;
618 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
619
620 return bytes_to_frames(runtime, chip->captureDMAPos);
621 }
622
623
624 static int snd_msnd_capture_hw_params(struct snd_pcm_substream *substream,
625 struct snd_pcm_hw_params *params)
626 {
627 int i;
628 struct snd_msnd *chip = snd_pcm_substream_chip(substream);
629 void *pDAQ = chip->mappedbase + DARQ_DATA_BUFF;
630
631 chip->capture_sample_size = snd_pcm_format_width(params_format(params));
632 chip->capture_channels = params_channels(params);
633 chip->capture_sample_rate = params_rate(params);
634
635 for (i = 0; i < 3; ++i, pDAQ += DAQDS__size) {
636 writew(chip->capture_sample_size, pDAQ + DAQDS_wSampleSize);
637 writew(chip->capture_channels, pDAQ + DAQDS_wChannels);
638 writew(chip->capture_sample_rate, pDAQ + DAQDS_wSampleRate);
639 }
640 return 0;
641 }
642
643
644 static struct snd_pcm_ops snd_msnd_capture_ops = {
645 .open = snd_msnd_capture_open,
646 .close = snd_msnd_capture_close,
647 .ioctl = snd_pcm_lib_ioctl,
648 .hw_params = snd_msnd_capture_hw_params,
649 .prepare = snd_msnd_capture_prepare,
650 .trigger = snd_msnd_capture_trigger,
651 .pointer = snd_msnd_capture_pointer,
652 };
653
654
655 int snd_msnd_pcm(struct snd_card *card, int device,
656 struct snd_pcm **rpcm)
657 {
658 struct snd_msnd *chip = card->private_data;
659 struct snd_pcm *pcm;
660 int err;
661
662 err = snd_pcm_new(card, "MSNDPINNACLE", device, 1, 1, &pcm);
663 if (err < 0)
664 return err;
665
666 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_msnd_playback_ops);
667 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_msnd_capture_ops);
668
669 pcm->private_data = chip;
670 strcpy(pcm->name, "Hurricane");
671
672
673 if (rpcm)
674 *rpcm = pcm;
675 return 0;
676 }
677 EXPORT_SYMBOL(snd_msnd_pcm);
678
679 MODULE_DESCRIPTION("Common routines for Turtle Beach Multisound drivers");
680 MODULE_LICENSE("GPL");
Tomato firmware and modifications.