source: GPL/branches/uniaud32-2.0/lib32/sound.c@ 363

Last change on this file since 363 was 363, checked in by Paul Smedley, 17 years ago

Add missing file
File size: 44.9 KB
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1/*
2 * MMPM/2 to OSS interface translation layer
3 *
4 * (C) 2000-2002 InnoTek Systemberatung GmbH
5 * (C) 2000-2001 Sander van Leeuwen (sandervl@xs4all.nl)
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public
18 * License along with this program; if not, write to the Free
19 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
20 * USA.
21 *
22 */
23
24#include <sound/core.h>
25#include <sound/control.h>
26#include <sound/info.h>
27#include <sound/pcm.h>
28#include <sound/pcm_params.h>
29#include <sound/minors.h>
30#include <linux/file.h>
31#include <linux/soundcard.h>
32
33#define LINUX
34#include <ossidc32.h>
35#include <osspci.h>
36#include <stacktoflat.h>
37#include <stdlib.h>
38#include "soundoss.h"
39
40#undef samples_to_bytes
41#undef bytes_to_samples
42#define samples_to_bytes(a) ((a*pHandle->doublesamplesize)/2)
43#define bytes_to_samples(a) (pHandle->doublesamplesize ? ((a*2)/pHandle->doublesamplesize) : a)
44int GetMaxChannels(ULONG deviceid, int type);
45
46struct file_operations oss_devices[OSS32_MAX_DEVICES] = {0};
47struct file_operations *alsa_fops = NULL;
48int per_bytes = 0;
49int prev_size = 0;
50int pcm_device = 0;
51int total = 0;
52// int pcm_instances = 0; //PS+++ !!!!!!! what is it!!!! see pcm.lib
53
54OpenedHandles opened_handles[8 * 256] = {0};
55
56//OSS32 to ALSA datatype conversion table
57static int OSSToALSADataType[OSS32_PCM_MAX_FORMATS] = {
58/* OSS32_PCM_FORMAT_S8 */ SNDRV_PCM_FORMAT_S8, //signed 8 bits sample
59/* OSS32_PCM_FORMAT_U8 */ SNDRV_PCM_FORMAT_U8, //unsigned 8 bits sample
60/* OSS32_PCM_FORMAT_S16_LE */ SNDRV_PCM_FORMAT_S16_LE, //signed 16 bits sample (little endian/Intel)
61/* OSS32_PCM_FORMAT_S16_BE */ SNDRV_PCM_FORMAT_S16_BE, //signed 16 bits sample (big endian/Motorola)
62/* OSS32_PCM_FORMAT_U16_LE */ SNDRV_PCM_FORMAT_U16_LE, //unsigned 16 bits sample (little endian/Intel)
63/* OSS32_PCM_FORMAT_U16_BE */ SNDRV_PCM_FORMAT_U16_BE, //unsigned 16 bits sample (big endian/Motorola)
64/* OSS32_PCM_FORMAT_S24_LE */ SNDRV_PCM_FORMAT_S24_LE, //signed 24 bits sample (little endian/Intel)
65/* OSS32_PCM_FORMAT_S24_BE */ SNDRV_PCM_FORMAT_S24_BE, //signed 24 bits sample (big endian/Motorola)
66/* OSS32_PCM_FORMAT_U24_LE */ SNDRV_PCM_FORMAT_U24_LE, //unsigned 24 bits sample (little endian/Intel)
67/* OSS32_PCM_FORMAT_U24_BE */ SNDRV_PCM_FORMAT_U24_BE, //unsigned 24 bits sample (big endian/Motorola)
68/* OSS32_PCM_FORMAT_S32_LE */ SNDRV_PCM_FORMAT_S32_LE, //signed 32 bits sample (little endian/Intel)
69/* OSS32_PCM_FORMAT_S32_BE */ SNDRV_PCM_FORMAT_S32_BE, //signed 32 bits sample (big endian/Motorola)
70/* OSS32_PCM_FORMAT_U32_LE */ SNDRV_PCM_FORMAT_U32_LE, //unsigned 32 bits sample (little endian/Intel)
71/* OSS32_PCM_FORMAT_U32_BE */ SNDRV_PCM_FORMAT_U32_BE, //unsigned 32 bits sample (big endian/Motorola)
72/* OSS32_PCM_FORMAT_MULAW */ SNDRV_PCM_FORMAT_MU_LAW, //8 bps (compressed 16 bits sample)
73/* OSS32_PCM_FORMAT_ALAW */ SNDRV_PCM_FORMAT_A_LAW, //8 bps (compressed 16 bits sample)
74/* OSS32_PCM_FORMAT_ADPCM */ SNDRV_PCM_FORMAT_IMA_ADPCM, //4 bps (compressed 16 bits sample)
75/* OSS32_PCM_FORMAT_MPEG */ SNDRV_PCM_FORMAT_MPEG, //AC3?
76};
77
78//******************************************************************************
79//******************************************************************************
80int register_chrdev(unsigned int version, const char *name, struct file_operations *fsop)
81{
82 if(!strcmp(name, "alsa")) {
83 alsa_fops = fsop;
84 }
85 return 0;
86}
87//******************************************************************************
88//******************************************************************************
89int unregister_chrdev(unsigned int version, const char *name)
90{
91 if(!strcmp(name, "alsa")) {
92 alsa_fops = NULL;
93 }
94 return 0;
95}
96//******************************************************************************
97//******************************************************************************
98int register_sound_special(struct file_operations *fops, int unit)
99{
100 if(fops == NULL) return -1;
101
102 memcpy(&oss_devices[OSS32_SPECIALID], fops, sizeof(struct file_operations));
103 return OSS32_SPECIALID;
104}
105//******************************************************************************
106//******************************************************************************
107int register_sound_mixer(struct file_operations *fops, int dev)
108{
109 if(fops == NULL) return -1;
110
111 memcpy(&oss_devices[OSS32_MIXERID], fops, sizeof(struct file_operations));
112 return OSS32_MIXERID;
113}
114//******************************************************************************
115//******************************************************************************
116int register_sound_midi(struct file_operations *fops, int dev)
117{
118 if(fops == NULL) return -1;
119
120 memcpy(&oss_devices[OSS32_MIDIID], fops, sizeof(struct file_operations));
121 return OSS32_MIDIID;
122}
123//******************************************************************************
124//******************************************************************************
125int register_sound_dsp(struct file_operations *fops, int dev)
126{
127 if(fops == NULL) return -1;
128
129 memcpy(&oss_devices[OSS32_DSPID], fops, sizeof(struct file_operations));
130 return OSS32_DSPID;
131}
132//******************************************************************************
133//******************************************************************************
134int register_sound_synth(struct file_operations *fops, int dev)
135{
136 if(fops == NULL) return -1;
137
138 memcpy(&oss_devices[OSS32_SYNTHID], fops, sizeof(struct file_operations));
139 return OSS32_SYNTHID;
140}
141//******************************************************************************
142//******************************************************************************
143void unregister_sound_special(int unit)
144{
145 memset(&oss_devices[OSS32_SPECIALID], 0, sizeof(struct file_operations));
146}
147//******************************************************************************
148//******************************************************************************
149void unregister_sound_mixer(int unit)
150{
151 memset(&oss_devices[OSS32_MIXERID], 0, sizeof(struct file_operations));
152}
153//******************************************************************************
154//******************************************************************************
155void unregister_sound_midi(int unit)
156{
157 memset(&oss_devices[OSS32_MIDIID], 0, sizeof(struct file_operations));
158}
159//******************************************************************************
160//******************************************************************************
161void unregister_sound_dsp(int unit)
162{
163 memset(&oss_devices[OSS32_DSPID], 0, sizeof(struct file_operations));
164}
165//******************************************************************************
166//******************************************************************************
167void unregister_sound_synth(int unit)
168{
169 memset(&oss_devices[OSS32_SYNTHID], 0, sizeof(struct file_operations));
170}
171//******************************************************************************
172//******************************************************************************
173OSSRET UNIXToOSSError(int unixerror)
174{
175 switch(unixerror) {
176 case 0:
177 return OSSERR_SUCCESS;
178 case -ENOMEM:
179 return OSSERR_OUT_OF_MEMORY;
180 case -ENODEV:
181 return OSSERR_NO_DEVICE_AVAILABLE;
182 case -ENOTTY:
183 case -EINVAL:
184 return OSSERR_INVALID_PARAMETER;
185 case -EAGAIN:
186 return OSSERR_AGAIN; //????
187 case -ENXIO:
188 return OSSERR_IO_ERROR;
189 case -EBUSY:
190 return OSSERR_BUSY;
191 case -EPERM:
192 return OSSERR_ACCESS_DENIED; //??
193 case -EPIPE:
194 case -EBADFD:
195 return OSSERR_ACCESS_DENIED; //??
196 default:
197 dprintf(("Unknown error %d", (unixerror > 0) ? unixerror : -unixerror));
198 return OSSERR_UNKNOWN;
199 }
200}
201//******************************************************************************
202//ALSA to OSS32 datatype conversion
203//******************************************************************************
204int ALSAToOSSDataType(ULONG ALSADataType)
205{
206 switch(ALSADataType)
207 {
208 case SNDRV_PCM_FORMAT_S8:
209 return OSS32_CAPS_PCM_FORMAT_S8; //signed 8 bits sample
210 case SNDRV_PCM_FORMAT_U8:
211 return OSS32_CAPS_PCM_FORMAT_U8; //unsigned 8 bits sample
212 case SNDRV_PCM_FORMAT_S16_LE:
213 return OSS32_CAPS_PCM_FORMAT_S16_LE; //signed 16 bits sample (little endian/Intel)
214 case SNDRV_PCM_FORMAT_S16_BE:
215 return OSS32_CAPS_PCM_FORMAT_S16_BE; //signed 16 bits sample (big endian/Motorola)
216 case SNDRV_PCM_FORMAT_U16_LE:
217 return OSS32_CAPS_PCM_FORMAT_U16_LE; //unsigned 16 bits sample (little endian/Intel)
218 case SNDRV_PCM_FORMAT_U16_BE:
219 return OSS32_CAPS_PCM_FORMAT_U16_BE; //unsigned 16 bits sample (big endian/Motorola)
220 case SNDRV_PCM_FORMAT_S24_LE:
221 return OSS32_CAPS_PCM_FORMAT_S24_LE; //signed 24 bits sample (little endian/Intel)
222 case SNDRV_PCM_FORMAT_S24_BE:
223 return OSS32_CAPS_PCM_FORMAT_S24_BE; //signed 24 bits sample (big endian/Motorola)
224 case SNDRV_PCM_FORMAT_U24_LE:
225 return OSS32_CAPS_PCM_FORMAT_U24_LE; //unsigned 24 bits sample (little endian/Intel)
226 case SNDRV_PCM_FORMAT_U24_BE:
227 return OSS32_CAPS_PCM_FORMAT_U24_BE; //unsigned 16 bits sample (big endian/Motorola)
228 case SNDRV_PCM_FORMAT_S32_LE:
229 return OSS32_CAPS_PCM_FORMAT_S32_LE; //signed 32 bits sample (little endian/Intel)
230 case SNDRV_PCM_FORMAT_S32_BE:
231 return OSS32_CAPS_PCM_FORMAT_S32_BE; //signed 32 bits sample (big endian/Motorola)
232 case SNDRV_PCM_FORMAT_U32_LE:
233 return OSS32_CAPS_PCM_FORMAT_U32_LE; //unsigned 32 bits sample (little endian/Intel)
234 case SNDRV_PCM_FORMAT_U32_BE:
235 return OSS32_CAPS_PCM_FORMAT_U32_BE; //unsigned 32 bits sample (big endian/Motorola)
236 case SNDRV_PCM_FORMAT_MU_LAW:
237 return OSS32_CAPS_PCM_FORMAT_MULAW; //8 bps (compressed 16 bits sample)
238 case SNDRV_PCM_FORMAT_A_LAW:
239 return OSS32_CAPS_PCM_FORMAT_ALAW; //8 bps (compressed 16 bits sample)
240 case SNDRV_PCM_FORMAT_IMA_ADPCM:
241 return OSS32_CAPS_PCM_FORMAT_ADPCM; //4 bps (compressed 16 bits sample)
242 case SNDRV_PCM_FORMAT_MPEG:
243 return OSS32_CAPS_PCM_FORMAT_MPEG; //AC3?
244 default:
245 DebugInt3();
246 return -1;
247 }
248}
249//******************************************************************************
250//******************************************************************************
251ULONG ALSAToOSSRateFlags(ULONG fuRates)
252{
253 ULONG fuOSSRates = 0;
254
255 if(fuRates & SNDRV_PCM_RATE_5512) {
256 fuOSSRates |= OSS32_CAPS_PCM_RATE_5512;
257 }
258 if(fuRates & SNDRV_PCM_RATE_8000) {
259 fuOSSRates |= OSS32_CAPS_PCM_RATE_8000;
260 }
261 if(fuRates & SNDRV_PCM_RATE_11025) {
262 fuOSSRates |= OSS32_CAPS_PCM_RATE_11025;
263 }
264 if(fuRates & SNDRV_PCM_RATE_16000) {
265 fuOSSRates |= OSS32_CAPS_PCM_RATE_16000;
266 }
267 if(fuRates & SNDRV_PCM_RATE_22050) {
268 fuOSSRates |= OSS32_CAPS_PCM_RATE_22050;
269 }
270 if(fuRates & SNDRV_PCM_RATE_32000) {
271 fuOSSRates |= OSS32_CAPS_PCM_RATE_32000;
272 }
273 if(fuRates & SNDRV_PCM_RATE_44100) {
274 fuOSSRates |= OSS32_CAPS_PCM_RATE_44100;
275 }
276 if(fuRates & SNDRV_PCM_RATE_48000) {
277 fuOSSRates |= OSS32_CAPS_PCM_RATE_48000;
278 }
279#if 0
280 if(fuRates & SNDRV_PCM_RATE_64000) {
281 fuOSSRates |= OSS32_CAPS_PCM_RATE_64000;
282 }
283 if(fuRates & SNDRV_PCM_RATE_88200) {
284 fuOSSRates |= OSS32_CAPS_PCM_RATE_88200;
285 }
286 if(fuRates & SNDRV_PCM_RATE_96000) {
287 fuOSSRates |= OSS32_CAPS_PCM_RATE_96000;
288 }
289 if(fuRates & SNDRV_PCM_RATE_176400) {
290 fuOSSRates |= OSS32_CAPS_PCM_RATE_176400;
291 }
292 if(fuRates & SNDRV_PCM_RATE_192000) {
293 fuOSSRates |= OSS32_CAPS_PCM_RATE_192000;
294 }
295#endif
296 if(fuRates & SNDRV_PCM_RATE_CONTINUOUS) {
297 fuOSSRates |= OSS32_CAPS_PCM_RATE_CONTINUOUS;
298 }
299
300 //TODO:
301 if(fuRates & SNDRV_PCM_RATE_KNOT) {
302 DebugInt3();
303 }
304//#define OSS32_CAPS_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */
305
306 return fuOSSRates;
307}
308//******************************************************************************
309//******************************************************************************
310OSSRET OSS32_QueryDevCaps(ULONG deviceid, POSS32_DEVCAPS pDevCaps)
311{
312 OSSSTREAMID streamid = 0;
313 soundhandle *pHandle;
314 struct snd_pcm_info *pcminfo = NULL;
315 struct snd_pcm_hw_params *params;
316 int ret, fmt, i;
317 ULONG format_mask;
318 struct snd_mask *mask;
319 int max_ch;
320
321#ifdef DEBUG
322 dprintf(("OSS32_QueryDevCaps"));
323#endif
324// max_ch = GetMaxChannels(deviceid, OSS32_CAPS_WAVE_PLAYBACK);
325
326 //these structures are too big to put on the stack
327 pcminfo = (struct snd_pcm_info *)kmalloc(sizeof(struct snd_pcm_info)+sizeof(struct snd_pcm_hw_params), GFP_KERNEL);
328 if(pcminfo == NULL) {
329 DebugInt3();
330 printk("OSS32_QueryDevCaps: out of memory\n");
331 return OSSERR_OUT_OF_MEMORY;
332 }
333 params = (struct snd_pcm_hw_params *)(pcminfo+1);
334
335 printk("Number of cards: %i",nrCardsDetected);
336 printk("dev id: %i",deviceid);
337 pDevCaps->nrDevices = 1;//nrCardsDetected;
338 pDevCaps->ulCaps = OSS32_CAPS_WAVE_PLAYBACK | OSS32_CAPS_WAVE_CAPTURE;
339
340 //query wave in & out caps
341 for(i=0;i<2;i++)
342 {
343 PWAVE_CAPS pWaveCaps = (i == 0) ? &pDevCaps->waveOutCaps : &pDevCaps->waveInCaps;
344
345 ret = OSS32_WaveOpen(deviceid, (i == 0) ? OSS32_STREAM_WAVEOUT : OSS32_STREAM_WAVEIN, &streamid, 0, 0);
346 if(ret != OSSERR_SUCCESS)
347 {
348 printk("OSS32_QueryDevCaps: wave open error %i\n", ret);
349 DebugInt3();
350 goto fail;
351 }
352 pHandle = (soundhandle *)streamid;
353 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
354 printk("OSS32_QueryDevCaps: invalid stream id \n");
355 ret = OSSERR_INVALID_STREAMID;
356 goto fail;
357 }
358 //set operation to non-blocking
359 pHandle->file.f_flags = O_NONBLOCK;
360
361 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_INFO, (ULONG)pcminfo);
362 if(ret != 0) {
363 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_INFO error %i\n", ret);
364 ret = UNIXToOSSError(ret);
365 goto fail;
366 }
367 if(i == 0) {//only need to do this once
368 if(pcminfo->name[0]) {
369 strncpy(pDevCaps->szDeviceName, pcminfo->name, sizeof(pDevCaps->szDeviceName));
370 }
371 else strncpy(pDevCaps->szDeviceName, pcminfo->id, sizeof(pDevCaps->szDeviceName));
372 }
373 printk("Device name: %s", pDevCaps->szDeviceName);
374 pWaveCaps->nrStreams = pcminfo->subdevices_count;
375
376 //get all hardware parameters
377 _snd_pcm_hw_params_any(params);
378 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)params);
379 if(ret != 0) {
380 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_HW_REFINE error %i\n", ret);
381 ret = UNIXToOSSError(ret);
382 goto fail;
383 }
384
385 pWaveCaps->ulMinChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min;
386 pWaveCaps->ulMaxChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;
387 pWaveCaps->ulChanFlags = 0;
388 if(pWaveCaps->ulMinChannels == 1) {
389 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_MONO;
390 }
391 if(pWaveCaps->ulMaxChannels >= 2) {
392 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_STEREO;
393 }
394 if(pWaveCaps->ulMaxChannels >= 4) {
395 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_QUAD;
396 }
397 if(pWaveCaps->ulMaxChannels >= 6) {
398 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_5_1;
399 }
400
401 pWaveCaps->ulMinRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min;
402 pWaveCaps->ulMaxRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max;
403
404 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_RATE_MASK);
405
406 pWaveCaps->ulRateFlags = mask->bits[0];
407
408 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
409
410 pWaveCaps->ulDataFormats = 0;
411
412 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
413 format_mask = mask->bits[0];
414 for(fmt=0;fmt<32;fmt++)
415 {
416 if(format_mask & (1 << fmt))
417 {
418 int f = ALSAToOSSDataType(fmt);
419 if (f >= 0)
420 pWaveCaps->ulDataFormats |= f;
421 }
422 }
423
424 OSS32_WaveClose(streamid);
425 streamid = 0;
426
427 }
428
429 //Check support for MPU401, FM & Wavetable MIDI
430 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
431 {
432 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
433 OSS32_MidiClose(streamid);
434 streamid = 0;
435 }
436 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
437 {
438 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
439 OSS32_MidiClose(streamid);
440 streamid = 0;
441 }
442 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
443 {
444 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
445 OSS32_MidiClose(streamid);
446 streamid = 0;
447 }
448 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
449 {
450 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
451 OSS32_MidiClose(streamid);
452 streamid = 0;
453 }
454
455 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
456 DebugInt3();
457 printk("OSS32_QueryDevCaps: OSS32_MixQueryName error\n");
458 goto fail;
459 }
460 printk("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName);
461 kfree(pcminfo);
462 streamid = 0;
463
464
465 return OSSERR_SUCCESS;
466
467fail:
468 printk("OSS32_QueryDevCaps failed\n");
469 DebugInt3();
470 if(streamid) OSS32_WaveClose(streamid);
471 if(pcminfo) kfree(pcminfo);
472
473 return ret;
474}
475//******************************************************************************
476//******************************************************************************
477OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
478{
479 soundhandle *pHandle;
480 int ret,i;
481
482 if (pStreamId)
483 *pStreamId = 0;
484 else
485 {
486 printk("ERROR: invalid stream id pointer passed\n");
487 return OSSERR_OUT_OF_MEMORY;
488 }
489
490 if(alsa_fops == NULL) {
491 DebugInt3();
492#ifdef DEBUG
493 dprintf(("OSS32_WaveOpen: no devices"));
494#endif
495 printk("OSS32_WaveOpen: no devices\n");
496
497 return OSSERR_NO_DEVICE_AVAILABLE;
498 }
499
500// printk("dev id: %i\n",deviceid);
501
502 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
503 if(pHandle == NULL) {
504 DebugInt3();
505 printk("OSS32_WaveOpen: out of memory\n");
506 return OSSERR_OUT_OF_MEMORY;
507 }
508 memset(pHandle, 0, sizeof(soundhandle));
509
510 //set operation to non-blocking
511 pHandle->file.f_flags = O_NONBLOCK;
512
513 //setup pointers in file structure (used internally by ALSA)
514 pHandle->file.f_dentry = &pHandle->d_entry;
515 pHandle->file.f_dentry->d_inode = &pHandle->inode;
516
517 switch(streamtype) {
518 case OSS32_STREAM_WAVEOUT:
519 pHandle->file.f_mode = FMODE_WRITE;
520 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
521 break;
522 case OSS32_STREAM_WAVEIN:
523 pHandle->file.f_mode = FMODE_READ;
524 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
525 break;
526 default:
527 DebugInt3();
528 kfree(pHandle);
529 printk("OSS32_WaveOpen: invalid parameter\n");
530 return OSSERR_INVALID_PARAMETER;
531 }
532
533 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
534 printk("OSS32_WaveOpen. ret: %i\n", ret);
535 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
536 if (ret == -16)
537 {
538 for (i=0; i < 8*256; i++)
539 {
540 if (opened_handles[i].handle != 0)
541 {
542 ret = 0;
543 if (pStreamId)
544 *pStreamId = (ULONG)opened_handles[i].handle;
545 opened_handles[i].reuse = 1; /* try to reuse */
546 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
547 {
548 if (!opened_handles[i].reuse)
549 {
550 //opened_handles[i].handle = 0;
551 kfree(opened_handles[i].handle); //free handle data
552 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
553 printk("OSS32_WaveOpen. Reopen ret: %i\n", ret);
554 }
555 else
556 {
557 kfree(pHandle);
558 pHandle = opened_handles[i].handle;
559 }
560 break;
561 }
562 }
563 }
564 }
565 else if (ret == 0)
566 {
567 for (i=0; i < 8*256; i++)
568 {
569 if (opened_handles[i].handle == 0)
570 {
571 opened_handles[i].handle = pHandle;
572 opened_handles[i].FileId = fileid;
573 break;
574 }
575 }
576 }
577
578 if(ret) {
579 kfree(pHandle);
580 DebugInt3();
581 printk("OSS32_WaveOpen: open error: %i\n",ret);
582 return UNIXToOSSError(ret);
583 }
584 pHandle->magic = MAGIC_WAVE_ALSA32;
585 if (pStreamId)
586 *pStreamId = (ULONG)pHandle;
587 // filling opened handles table
588 printk("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle);
589 return OSSERR_SUCCESS;
590}
591//******************************************************************************
592//******************************************************************************
593
594OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
595{
596 soundhandle *pHandle = (soundhandle *)streamid;
597 int ret = 0, i;
598
599 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
600 DebugInt3();
601 printk("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle);
602 return OSSERR_INVALID_STREAMID;
603 }
604
605 //set operation to non-blocking
606 pHandle->file.f_flags = O_NONBLOCK;
607
608 for (i=0; i < 8*256; i++)
609 {
610 if (opened_handles[i].handle == pHandle)
611 {
612 printk("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse);
613 if (!opened_handles[i].reuse)
614 {
615 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
616 opened_handles[i].handle = 0;
617 kfree(pHandle); //free handle data
618 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
619 } else
620 {
621 /* prepare for reuse */
622 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_RESET, 0);
623 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
624 }
625 break;
626 }
627 }
628
629 if (i >= 8*256)
630 {
631 //all already closed
632 printk("phandle %x not found\n", pHandle);
633// return OSSERR_SUCCESS;
634 }
635
636
637 if(ret) {
638 printk("Error closing wave. rc = %i\n", ret);
639 DebugInt3();
640 return UNIXToOSSError(ret);
641 }
642 printk("OSS32_WaveClose. streamid %X\n",(ULONG)pHandle);
643 return OSSERR_SUCCESS;
644}
645//******************************************************************************
646//******************************************************************************
647OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
648{
649 soundhandle *pHandle = (soundhandle *)streamid;
650 int ret;
651
652#ifdef DEBUG
653 dprintf(("OSS32_WavePrepare"));
654#endif
655
656 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
657 DebugInt3();
658//#ifdef DEBUG
659 printk("vladest: OSS32_WavePrepare: invalid streamID\n");
660//#endif
661
662 return OSSERR_INVALID_STREAMID;
663 }
664 //set operation to non-blocking
665 pHandle->file.f_flags = O_NONBLOCK;
666
667 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
668 if (ret)
669 printk("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle);
670
671 return UNIXToOSSError(ret);;
672}
673//******************************************************************************
674//******************************************************************************
675OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
676{
677 soundhandle *pHandle = (soundhandle *)streamid;
678 int ret;
679
680 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
681 DebugInt3();
682 return OSSERR_INVALID_STREAMID;
683 }
684 //set operation to non-blocking
685 pHandle->file.f_flags = O_NONBLOCK;
686
687 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
688 if (ret)
689 printk("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle);
690
691 return UNIXToOSSError(ret);;
692}
693//******************************************************************************
694//******************************************************************************
695OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
696{
697 soundhandle *pHandle = (soundhandle *)streamid;
698 int ret;
699
700 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
701 DebugInt3();
702 return OSSERR_INVALID_STREAMID;
703 }
704 //set operation to non-blocking
705 pHandle->file.f_flags = O_NONBLOCK;
706
707 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
708 if (ret)
709 printk("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle);
710
711 return UNIXToOSSError(ret);;
712}
713//******************************************************************************
714//******************************************************************************
715OSSRET OSS32_WavePause(OSSSTREAMID streamid)
716{
717 soundhandle *pHandle = (soundhandle *)streamid;
718 int ret;
719
720 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
721 DebugInt3();
722 return OSSERR_INVALID_STREAMID;
723 }
724 //set operation to non-blocking
725 pHandle->file.f_flags = O_NONBLOCK;
726
727 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
728 if (ret)
729 printk("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle);
730
731 return UNIXToOSSError(ret);;
732}
733//******************************************************************************
734//******************************************************************************
735OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
736{
737 soundhandle *pHandle = (soundhandle *)streamid;
738 int ret;
739
740 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
741 DebugInt3();
742 return OSSERR_INVALID_STREAMID;
743 }
744 //set operation to non-blocking
745 pHandle->file.f_flags = O_NONBLOCK;
746
747 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
748 if (ret)
749 printk("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle);
750
751 return UNIXToOSSError(ret);;
752}
753
754static unsigned rates[] = {
755 /* ATTENTION: these values depend on the definition in pcm.h! */
756 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
757 64000, 88200, 96000, 176400, 192000
758};
759
760//******************************************************************************
761//******************************************************************************
762OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
763{
764 soundhandle *pHandle = (soundhandle *)streamid;
765 struct snd_pcm_hw_params params;
766 struct snd_pcm_sw_params swparams;
767
768 int ret, nrperiods, minnrperiods, maxnrperiods, samplesize;
769 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
770 ULONG periodbytes, minperiodbytes, maxperiodbytes;
771 BOOL fTryAgain = FALSE;
772
773 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
774 DebugInt3();
775 return OSSERR_INVALID_STREAMID;
776 }
777 if(pHwParams == NULL) {
778 DebugInt3();
779 return OSSERR_INVALID_PARAMETER;
780 }
781 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
782 DebugInt3();
783 return OSSERR_INVALID_PARAMETER;
784 }
785
786 //set operation to non-blocking
787 pHandle->file.f_flags = O_NONBLOCK;
788
789 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
790 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
791 pHandle->doublesamplesize = samplesize * 2;
792 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
793 periodbytes = pHwParams->ulPeriodSize;
794 periodsize = bytes_to_samples(periodbytes);
795
796 //get all hardware parameters
797 _snd_pcm_hw_params_any(&params);
798 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
799 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
800 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
801 pHwParams->ulBitsPerSample, 0);
802 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
803 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
804 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
805 OSSToALSADataType[pHwParams->ulDataType], 0);
806 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
807 pHwParams->ulNumChannels, 0);
808 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
809 pHwParams->ulSampleRate, 0);
810 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
811 if(ret != 0) {
812 DebugInt3();
813 return UNIXToOSSError(ret);
814 }
815
816 //check period size against lower and upper boundaries
817 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
818 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
819 if(periodbytes < minperiodbytes) {
820 periodbytes = minperiodbytes;
821 }
822 else
823 if(periodbytes > maxperiodbytes) {
824 periodbytes = maxperiodbytes;
825 }
826
827 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
828 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
829 if(periodsize < minperiodsize) {
830 periodsize = minperiodsize;
831 }
832 else
833 if(periodsize > maxperiodsize) {
834 periodsize = maxperiodsize;
835 }
836
837 if(samples_to_bytes(periodsize) < periodbytes) {
838 periodbytes = samples_to_bytes(periodsize);
839 }
840 else
841 if(bytes_to_samples(periodbytes) < periodsize) {
842 periodsize = bytes_to_samples(periodbytes);
843 }
844
845 //make sure period size is a whole fraction of the buffer size
846 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
847 if(periodsize) {
848 nrperiods = bufsize/periodbytes;
849 }
850 else {
851 DebugInt3();
852 return OSSERR_INVALID_PARAMETER;
853 }
854 //check nr of periods against lower and upper boundaries
855 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
856 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
857 if(nrperiods < minnrperiods) {
858 nrperiods = minnrperiods;
859 }
860 else
861 if(nrperiods > maxnrperiods) {
862 nrperiods = maxnrperiods;
863 }
864 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
865 //so we make sure it's an even number.
866 if(nrperiods == 1) {
867 DebugInt3();
868 return OSSERR_INVALID_PARAMETER;
869 }
870 nrperiods &= ~1;
871
872 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
873 //period size and buffer size
874tryagain:
875 _snd_pcm_hw_params_any(&params);
876 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
877 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
878#if 0
879 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
880 pHwParams->ulBitsPerSample, 0);
881 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
882 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
883#endif
884 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
885 OSSToALSADataType[pHwParams->ulDataType], 0);
886
887 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
888 pHwParams->ulNumChannels, 0);
889 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
890 pHwParams->ulSampleRate, 0);
891#if 0
892 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
893 periodsize, 0);
894 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
895 periodbytes, 0);
896 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
897 nrperiods, 0);
898 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
899 periodsize*nrperiods, 0);
900 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
901 periodbytes*nrperiods, 0);
902#endif
903 dprintf(("Hardware parameters: sample rate %d, data type %d, channels %d, period size %d, periods %d",
904 pHwParams->ulSampleRate, pHwParams->ulDataType, pHwParams->ulNumChannels, periodsize, nrperiods));
905
906 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
907 if(ret) {
908 if(fTryAgain == FALSE) {
909 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
910 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
911 if(minperiodsize > maxperiodsize) {
912 //ALSA doesn't like the period size; try suggested one
913 periodsize = maxperiodsize;
914 periodbytes = samples_to_bytes(periodsize);
915 fTryAgain = TRUE;
916 goto tryagain;
917 }
918 }
919 return UNIXToOSSError(ret);
920 }
921
922 //set silence threshold (all sizes in frames) (only needed for playback)
923 if(pHandle->file.f_mode == FMODE_WRITE)
924 {
925 swparams.avail_min = periodsize;
926 swparams.period_step = 1;
927 if(nrperiods <= 2) {
928 swparams.silence_size = (periodsize/2);
929 }
930 else {
931 swparams.silence_size = periodsize;
932 }
933 swparams.silence_threshold = swparams.silence_size;
934 swparams.sleep_min = 0;
935 swparams.start_threshold = 1;
936 swparams.stop_threshold = periodsize*nrperiods;
937 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
938 swparams.xfer_align = periodsize;
939
940 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
941 }
942 return UNIXToOSSError(ret);
943}
944
945//******************************************************************************
946ULONG CountWv=0;
947ULONG LockAdd=0;
948extern ULONG xchg( ULONG *p, ULONG x);
949#pragma aux xchg = "xchg [esi],eax" parm [ESI][EAX] value [EAX];
950//******************************************************************************
951OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG buffer, ULONG size, ULONG *pTransferred, int pcm)
952{
953 soundhandle *pHandle = (soundhandle *)streamid;
954 struct snd_pcm_status status;
955 int ret, align, size1, ret1;
956 LONG transferred;
957 ULONG position,i,j;
958 char *buf;
959
960// return OSSERR_SUCCESS;
961
962 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
963 DebugInt3();
964 return OSSERR_INVALID_STREAMID;
965 }
966 if(pTransferred == NULL || buffer == 0 || size == 0) {
967 DebugInt3();
968 return OSSERR_INVALID_PARAMETER;
969 }
970
971 //set operation to non-blocking
972 pHandle->file.f_flags = O_NONBLOCK;
973
974 //first check how much room is left in the circular dma buffer
975 //this is done to make sure we don't block inside ALSA while trying to write
976 //more data than fits in the internal dma buffer.
977 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
978
979 if(ret) {
980 DebugInt3();
981 return UNIXToOSSError(ret);
982 }
983
984 size1 = size;
985
986 size = min(size, samples_to_bytes(status.avail));
987
988#ifdef DEBUG_PK
989 if (size1 != size)
990 printk("requested size [%d] less then available [%d]\n", size1, size);
991#endif
992
993 CountWv++;
994
995#ifdef DEBUG
996 printk("OSS32_WaveAddBuffer N:%d hw %d app %d avail %d, orig size: %d, size %d\n",CountWv, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), size1, size);
997#endif
998
999 if (size == 0)
1000 {
1001#ifdef DEBUG_PK
1002 printk("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n");
1003 printk("state = %i\n",status.state);
1004 printk("avail = %i\n",status.avail);
1005 printk("size req = %i\n",size1);
1006#endif
1007 *pTransferred = 0;
1008 return OSSERR_BUFFER_FULL;
1009 }
1010
1011 transferred = 0;
1012 *pTransferred = 0;
1013 ret = -11;
1014 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1015 {
1016 case SNDRV_MINOR_PCM_PLAYBACK:
1017 // size should be aligned to channels number * samplesize //PS+++ what is it and why?!?!?!
1018 j = 10; // 10 try if error
1019 while (size && j && ret)
1020 {
1021 for (i=0; i < 1000; i++)
1022 {
1023 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1024 // If here any state and have free buffer to any byte
1025 if ((status.state != SNDRV_PCM_STATE_XRUN ) && samples_to_bytes(status.avail) )
1026 break;
1027 if (i > 998)
1028 {
1029// printk("timeout stat %x avail:%d hw:%d app:%d\n",status.state,samples_to_bytes(status.avail),samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr));
1030 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1031 }
1032 }
1033
1034 if (ret1 < 0)
1035 {
1036// printk("Status Error ret1:%i trans: %i need %d tot:%d\n",ret1,transferred, size,size1);
1037 break; // We have any global error, don't try more
1038 }
1039
1040 ret = pHandle->file.f_op->write(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1041
1042 if (ret < 0 )
1043 { // We have any error, don't try more
1044 j--;
1045 if ( ret != -11 )
1046 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1047// printk("Error ret:%i ret1:%i trans: %d need %d tot:%d\n",ret,ret1,transferred, size,size1);
1048 continue;
1049 }
1050 if (ret == 0) continue;
1051 transferred += ret;
1052// printk("written: now: %d, trans: %d need %d tot:%d\n", ret, transferred, size,size1);
1053 buffer += ret;
1054 if (size > ret)
1055 size -= ret;
1056 else
1057 size = 0;
1058 }
1059 break;
1060 case SNDRV_MINOR_PCM_CAPTURE:
1061 transferred = pHandle->file.f_op->read(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1062// printk("readed %i bytes\n", transferred);
1063 break;
1064 default:
1065 DebugInt3();
1066 return OSSERR_INVALID_PARAMETER;
1067 }
1068
1069 total += transferred;
1070 *pTransferred = transferred;
1071 prev_size = transferred;
1072 if (*pTransferred < size1)
1073 {
1074 printk("warning: transferred [%d] less than requested [%d]\n", *pTransferred, size1);
1075// ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1076 }
1077
1078 return OSSERR_SUCCESS;
1079}
1080//******************************************************************************
1081//******************************************************************************
1082OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1083{
1084 soundhandle *pHandle = (soundhandle *)streamid;
1085 struct snd_pcm_status status;
1086 int ret;
1087 ULONG delta;
1088
1089 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1090 DebugInt3();
1091 return OSSERR_INVALID_STREAMID;
1092 }
1093 if(pPosition == NULL) {
1094 DebugInt3();
1095 return OSSERR_INVALID_PARAMETER;
1096 }
1097
1098 //set operation to non-blocking
1099 pHandle->file.f_flags = O_NONBLOCK;
1100
1101 //Get the status of the stream
1102 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1103
1104 if(ret) {
1105 DebugInt3();
1106 return UNIXToOSSError(ret);
1107 }
1108
1109 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1110 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1111 return OSSERR_SUCCESS;
1112}
1113//******************************************************************************
1114//******************************************************************************
1115OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1116{
1117 soundhandle *pHandle = (soundhandle *)streamid;
1118 struct snd_pcm_status status;
1119 int ret;
1120
1121 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1122 DebugInt3();
1123 return OSSERR_INVALID_STREAMID;
1124 }
1125 if(pBytesAvail == NULL) {
1126 DebugInt3();
1127 return OSSERR_INVALID_PARAMETER;
1128 }
1129
1130 //set operation to non-blocking
1131 pHandle->file.f_flags = O_NONBLOCK;
1132
1133 //Get the nr of bytes left in the audio buffer
1134 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1135
1136 if(ret) {
1137 DebugInt3();
1138 return UNIXToOSSError(ret);
1139 }
1140 ret = samples_to_bytes(status.avail);
1141
1142 *pBytesAvail = ret > 752? ret - 752 : 0;
1143 return OSSERR_SUCCESS;
1144}
1145//******************************************************************************
1146//******************************************************************************
1147OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1148{
1149 soundhandle *pHandle = (soundhandle *)streamid;
1150 int ret;
1151 int leftvol, rightvol;
1152 struct snd_pcm_volume pcm_volume;
1153
1154 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1155 DebugInt3();
1156 return OSSERR_INVALID_STREAMID;
1157 }
1158 //set operation to non-blocking
1159 pHandle->file.f_flags = O_NONBLOCK;
1160
1161 leftvol = GET_VOLUME_L(volume);
1162 rightvol = GET_VOLUME_R(volume);
1163
1164 pcm_volume.nrchannels = 4;
1165 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1166 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1167 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1168 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1169
1170 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1171 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1172 return UNIXToOSSError(ret);
1173}
1174//******************************************************************************
1175//******************************************************************************
1176
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