source: GPL/branches/uniaud32-2.1.x/lib32/sound.c@ 516

Last change on this file since 516 was 516, checked in by David Azarewicz, 15 years ago

OSS32_Initialize changes, code cleanups
File size: 48.3 KB
Line 
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 <proto.h>
39//#include <dbgos2.h>
40#include "soundoss.h"
41
42#undef samples_to_bytes
43#undef bytes_to_samples
44#define samples_to_bytes(a) ((a*pHandle->doublesamplesize)/2)
45#define bytes_to_samples(a) (pHandle->doublesamplesize ? ((a*2)/pHandle->doublesamplesize) : a)
46int GetMaxChannels(ULONG deviceid, int type);
47
48struct file_operations oss_devices[OSS32_MAX_DEVICES] = {0};
49struct file_operations *alsa_fops = NULL;
50int per_bytes = 0;
51int prev_size = 0;
52int pcm_device = 0;
53int total = 0;
54// int pcm_instances = 0; //PS+++ !!!!!!! what is it!!!! see pcm.lib
55
56OpenedHandles opened_handles[8 * 256] = {0};
57
58//OSS32 to ALSA datatype conversion table
59static int OSSToALSADataType[OSS32_PCM_MAX_FORMATS] = {
60/* OSS32_PCM_FORMAT_S8 */ SNDRV_PCM_FORMAT_S8, //signed 8 bits sample
61/* OSS32_PCM_FORMAT_U8 */ SNDRV_PCM_FORMAT_U8, //unsigned 8 bits sample
62/* OSS32_PCM_FORMAT_S16_LE */ SNDRV_PCM_FORMAT_S16_LE, //signed 16 bits sample (little endian/Intel)
63/* OSS32_PCM_FORMAT_S16_BE */ SNDRV_PCM_FORMAT_S16_BE, //signed 16 bits sample (big endian/Motorola)
64/* OSS32_PCM_FORMAT_U16_LE */ SNDRV_PCM_FORMAT_U16_LE, //unsigned 16 bits sample (little endian/Intel)
65/* OSS32_PCM_FORMAT_U16_BE */ SNDRV_PCM_FORMAT_U16_BE, //unsigned 16 bits sample (big endian/Motorola)
66/* OSS32_PCM_FORMAT_S24_LE */ SNDRV_PCM_FORMAT_S24_LE, //signed 24 bits sample (little endian/Intel)
67/* OSS32_PCM_FORMAT_S24_BE */ SNDRV_PCM_FORMAT_S24_BE, //signed 24 bits sample (big endian/Motorola)
68/* OSS32_PCM_FORMAT_U24_LE */ SNDRV_PCM_FORMAT_U24_LE, //unsigned 24 bits sample (little endian/Intel)
69/* OSS32_PCM_FORMAT_U24_BE */ SNDRV_PCM_FORMAT_U24_BE, //unsigned 24 bits sample (big endian/Motorola)
70/* OSS32_PCM_FORMAT_S32_LE */ SNDRV_PCM_FORMAT_S32_LE, //signed 32 bits sample (little endian/Intel)
71/* OSS32_PCM_FORMAT_S32_BE */ SNDRV_PCM_FORMAT_S32_BE, //signed 32 bits sample (big endian/Motorola)
72/* OSS32_PCM_FORMAT_U32_LE */ SNDRV_PCM_FORMAT_U32_LE, //unsigned 32 bits sample (little endian/Intel)
73/* OSS32_PCM_FORMAT_U32_BE */ SNDRV_PCM_FORMAT_U32_BE, //unsigned 32 bits sample (big endian/Motorola)
74/* OSS32_PCM_FORMAT_MULAW */ SNDRV_PCM_FORMAT_MU_LAW, //8 bps (compressed 16 bits sample)
75/* OSS32_PCM_FORMAT_ALAW */ SNDRV_PCM_FORMAT_A_LAW, //8 bps (compressed 16 bits sample)
76/* OSS32_PCM_FORMAT_ADPCM */ SNDRV_PCM_FORMAT_IMA_ADPCM, //4 bps (compressed 16 bits sample)
77/* OSS32_PCM_FORMAT_MPEG */ SNDRV_PCM_FORMAT_MPEG, //AC3?
78};
79
80//******************************************************************************
81//******************************************************************************
82int register_chrdev(unsigned int version, const char *name, struct file_operations *fsop)
83{
84 if(!strcmp(name, "alsa")) {
85 alsa_fops = fsop;
86 }
87 return 0;
88}
89//******************************************************************************
90//******************************************************************************
91int unregister_chrdev(unsigned int version, const char *name)
92{
93 if(!strcmp(name, "alsa")) {
94 alsa_fops = NULL;
95 }
96 return 0;
97}
98//******************************************************************************
99//******************************************************************************
100int register_sound_special(struct file_operations *fops, int unit)
101{
102 if(fops == NULL) return -1;
103
104 memcpy(&oss_devices[OSS32_SPECIALID], fops, sizeof(struct file_operations));
105 return OSS32_SPECIALID;
106}
107//******************************************************************************
108//******************************************************************************
109int register_sound_mixer(struct file_operations *fops, int dev)
110{
111 if(fops == NULL) return -1;
112
113 memcpy(&oss_devices[OSS32_MIXERID], fops, sizeof(struct file_operations));
114 return OSS32_MIXERID;
115}
116//******************************************************************************
117//******************************************************************************
118int register_sound_midi(struct file_operations *fops, int dev)
119{
120 if(fops == NULL) return -1;
121
122 memcpy(&oss_devices[OSS32_MIDIID], fops, sizeof(struct file_operations));
123 return OSS32_MIDIID;
124}
125//******************************************************************************
126//******************************************************************************
127int register_sound_dsp(struct file_operations *fops, int dev)
128{
129 if(fops == NULL) return -1;
130
131 memcpy(&oss_devices[OSS32_DSPID], fops, sizeof(struct file_operations));
132 return OSS32_DSPID;
133}
134//******************************************************************************
135//******************************************************************************
136int register_sound_synth(struct file_operations *fops, int dev)
137{
138 if(fops == NULL) return -1;
139
140 memcpy(&oss_devices[OSS32_SYNTHID], fops, sizeof(struct file_operations));
141 return OSS32_SYNTHID;
142}
143//******************************************************************************
144//******************************************************************************
145void unregister_sound_special(int unit)
146{
147 memset(&oss_devices[OSS32_SPECIALID], 0, sizeof(struct file_operations));
148}
149//******************************************************************************
150//******************************************************************************
151void unregister_sound_mixer(int unit)
152{
153 memset(&oss_devices[OSS32_MIXERID], 0, sizeof(struct file_operations));
154}
155//******************************************************************************
156//******************************************************************************
157void unregister_sound_midi(int unit)
158{
159 memset(&oss_devices[OSS32_MIDIID], 0, sizeof(struct file_operations));
160}
161//******************************************************************************
162//******************************************************************************
163void unregister_sound_dsp(int unit)
164{
165 memset(&oss_devices[OSS32_DSPID], 0, sizeof(struct file_operations));
166}
167//******************************************************************************
168//******************************************************************************
169void unregister_sound_synth(int unit)
170{
171 memset(&oss_devices[OSS32_SYNTHID], 0, sizeof(struct file_operations));
172}
173//******************************************************************************
174//******************************************************************************
175OSSRET UNIXToOSSError(int unixerror)
176{
177 switch(unixerror) {
178 case 0:
179 return OSSERR_SUCCESS;
180 case -ENOMEM:
181 return OSSERR_OUT_OF_MEMORY;
182 case -ENODEV:
183 return OSSERR_NO_DEVICE_AVAILABLE;
184 case -ENOTTY:
185 case -EINVAL:
186 return OSSERR_INVALID_PARAMETER;
187 case -EAGAIN:
188 return OSSERR_AGAIN; //????
189 case -ENXIO:
190 return OSSERR_IO_ERROR;
191 case -EBUSY:
192 return OSSERR_BUSY;
193 case -EPERM:
194 return OSSERR_ACCESS_DENIED; //??
195 case -EPIPE:
196 case -EBADFD:
197 return OSSERR_ACCESS_DENIED; //??
198 default:
199 dprintf(("Unknown error %d", (unixerror > 0) ? unixerror : -unixerror));
200 return OSSERR_UNKNOWN;
201 }
202}
203//******************************************************************************
204//ALSA to OSS32 datatype conversion
205//******************************************************************************
206int ALSAToOSSDataType(ULONG ALSADataType)
207{
208 switch(ALSADataType)
209 {
210 case SNDRV_PCM_FORMAT_S8:
211 return OSS32_CAPS_PCM_FORMAT_S8; //signed 8 bits sample
212 case SNDRV_PCM_FORMAT_U8:
213 return OSS32_CAPS_PCM_FORMAT_U8; //unsigned 8 bits sample
214 case SNDRV_PCM_FORMAT_S16_LE:
215 return OSS32_CAPS_PCM_FORMAT_S16_LE; //signed 16 bits sample (little endian/Intel)
216 case SNDRV_PCM_FORMAT_S16_BE:
217 return OSS32_CAPS_PCM_FORMAT_S16_BE; //signed 16 bits sample (big endian/Motorola)
218 case SNDRV_PCM_FORMAT_U16_LE:
219 return OSS32_CAPS_PCM_FORMAT_U16_LE; //unsigned 16 bits sample (little endian/Intel)
220 case SNDRV_PCM_FORMAT_U16_BE:
221 return OSS32_CAPS_PCM_FORMAT_U16_BE; //unsigned 16 bits sample (big endian/Motorola)
222 case SNDRV_PCM_FORMAT_S24_LE:
223 return OSS32_CAPS_PCM_FORMAT_S24_LE; //signed 24 bits sample (little endian/Intel)
224 case SNDRV_PCM_FORMAT_S24_BE:
225 return OSS32_CAPS_PCM_FORMAT_S24_BE; //signed 24 bits sample (big endian/Motorola)
226 case SNDRV_PCM_FORMAT_U24_LE:
227 return OSS32_CAPS_PCM_FORMAT_U24_LE; //unsigned 24 bits sample (little endian/Intel)
228 case SNDRV_PCM_FORMAT_U24_BE:
229 return OSS32_CAPS_PCM_FORMAT_U24_BE; //unsigned 16 bits sample (big endian/Motorola)
230 case SNDRV_PCM_FORMAT_S32_LE:
231 return OSS32_CAPS_PCM_FORMAT_S32_LE; //signed 32 bits sample (little endian/Intel)
232 case SNDRV_PCM_FORMAT_S32_BE:
233 return OSS32_CAPS_PCM_FORMAT_S32_BE; //signed 32 bits sample (big endian/Motorola)
234 case SNDRV_PCM_FORMAT_U32_LE:
235 return OSS32_CAPS_PCM_FORMAT_U32_LE; //unsigned 32 bits sample (little endian/Intel)
236 case SNDRV_PCM_FORMAT_U32_BE:
237 return OSS32_CAPS_PCM_FORMAT_U32_BE; //unsigned 32 bits sample (big endian/Motorola)
238 case SNDRV_PCM_FORMAT_MU_LAW:
239 return OSS32_CAPS_PCM_FORMAT_MULAW; //8 bps (compressed 16 bits sample)
240 case SNDRV_PCM_FORMAT_A_LAW:
241 return OSS32_CAPS_PCM_FORMAT_ALAW; //8 bps (compressed 16 bits sample)
242 case SNDRV_PCM_FORMAT_IMA_ADPCM:
243 return OSS32_CAPS_PCM_FORMAT_ADPCM; //4 bps (compressed 16 bits sample)
244 case SNDRV_PCM_FORMAT_MPEG:
245 return OSS32_CAPS_PCM_FORMAT_MPEG; //AC3?
246 default:
247 DebugInt3();
248 return -1;
249 }
250}
251//******************************************************************************
252//******************************************************************************
253ULONG ALSAToOSSRateFlags(ULONG fuRates)
254{
255 ULONG fuOSSRates = 0;
256
257 char szMixerName[64];
258 char szDeviceName[128];
259 OSS32_QueryNames(OSS32_DEFAULT_DEVICE, szDeviceName,
260 sizeof(szDeviceName),szMixerName,
261 sizeof(szMixerName), TRUE);
262 if (strncmp(szDeviceName,"HDA",3) != 0){
263 /* non-HDA audio - support 5512 - 32000 Hz sample rates */
264 if(fuRates & SNDRV_PCM_RATE_5512) {
265 fuOSSRates |= OSS32_CAPS_PCM_RATE_5512;
266 }
267 if(fuRates & SNDRV_PCM_RATE_8000) {
268 fuOSSRates |= OSS32_CAPS_PCM_RATE_8000;
269 }
270 if(fuRates & SNDRV_PCM_RATE_11025) {
271 fuOSSRates |= OSS32_CAPS_PCM_RATE_11025;
272 }
273 if(fuRates & SNDRV_PCM_RATE_16000) {
274 fuOSSRates |= OSS32_CAPS_PCM_RATE_16000;
275 }
276 if(fuRates & SNDRV_PCM_RATE_22050) {
277 fuOSSRates |= OSS32_CAPS_PCM_RATE_22050;
278 }
279 if(fuRates & SNDRV_PCM_RATE_32000) {
280 fuOSSRates |= OSS32_CAPS_PCM_RATE_32000;
281 }
282 } else {
283 printk("HDA audio detected - don't support 5512 - 32000 Hz audio sample rates\n");
284 }
285 if(fuRates & SNDRV_PCM_RATE_44100) {
286 fuOSSRates |= OSS32_CAPS_PCM_RATE_44100;
287 }
288 if(fuRates & SNDRV_PCM_RATE_48000) {
289 fuOSSRates |= OSS32_CAPS_PCM_RATE_48000;
290 }
291#if 0
292 if(fuRates & SNDRV_PCM_RATE_64000) {
293 fuOSSRates |= OSS32_CAPS_PCM_RATE_64000;
294 }
295 if(fuRates & SNDRV_PCM_RATE_88200) {
296 fuOSSRates |= OSS32_CAPS_PCM_RATE_88200;
297 }
298 if(fuRates & SNDRV_PCM_RATE_96000) {
299 fuOSSRates |= OSS32_CAPS_PCM_RATE_96000;
300 }
301 if(fuRates & SNDRV_PCM_RATE_176400) {
302 fuOSSRates |= OSS32_CAPS_PCM_RATE_176400;
303 }
304 if(fuRates & SNDRV_PCM_RATE_192000) {
305 fuOSSRates |= OSS32_CAPS_PCM_RATE_192000;
306 }
307#endif
308 if(fuRates & SNDRV_PCM_RATE_CONTINUOUS) {
309 fuOSSRates |= OSS32_CAPS_PCM_RATE_CONTINUOUS;
310 }
311
312 //TODO:
313 if(fuRates & SNDRV_PCM_RATE_KNOT) {
314 DebugInt3();
315 }
316//#define OSS32_CAPS_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */
317
318 return fuOSSRates;
319}
320//******************************************************************************
321//******************************************************************************
322OSSRET OSS32_QueryDevCaps(ULONG deviceid, POSS32_DEVCAPS pDevCaps)
323{
324 OSSSTREAMID streamid = 0;
325 soundhandle *pHandle;
326 struct snd_pcm_info *pcminfo = NULL;
327 struct snd_pcm_hw_params *params;
328 int ret, fmt, i;
329 ULONG format_mask;
330 struct snd_mask *mask;
331 int max_ch;
332
333#ifdef DEBUG
334 dprintf(("OSS32_QueryDevCaps"));
335#endif
336// max_ch = GetMaxChannels(deviceid, OSS32_CAPS_WAVE_PLAYBACK);
337
338 //these structures are too big to put on the stack
339 pcminfo = (struct snd_pcm_info *)kmalloc(sizeof(struct snd_pcm_info)+sizeof(struct snd_pcm_hw_params), GFP_KERNEL);
340 if(pcminfo == NULL) {
341 DebugInt3();
342 printk("OSS32_QueryDevCaps: out of memory\n");
343 return OSSERR_OUT_OF_MEMORY;
344 }
345 params = (struct snd_pcm_hw_params *)(pcminfo+1);
346
347 printk("Number of cards: %i",nrCardsDetected);
348 printk("dev id: %i",deviceid);
349 pDevCaps->nrDevices = 1;//nrCardsDetected;
350// pDevCaps->nrDevices = nrCardsDetected;
351 pDevCaps->ulCaps = OSS32_CAPS_WAVE_PLAYBACK | OSS32_CAPS_WAVE_CAPTURE;
352
353 //query wave in & out caps
354 for(i=0;i<2;i++)
355 {
356 PWAVE_CAPS pWaveCaps = (i == 0) ? &pDevCaps->waveOutCaps : &pDevCaps->waveInCaps;
357
358 ret = OSS32_WaveOpen(deviceid, (i == 0) ? OSS32_STREAM_WAVEOUT : OSS32_STREAM_WAVEIN, &streamid, 0, 0);
359 if(ret != OSSERR_SUCCESS)
360 {
361 printk("OSS32_QueryDevCaps: wave open error %i\n", ret);
362 DebugInt3();
363 goto fail;
364 }
365 pHandle = (soundhandle *)streamid;
366 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
367 printk("OSS32_QueryDevCaps: invalid stream id \n");
368 ret = OSSERR_INVALID_STREAMID;
369 goto fail;
370 }
371 //set operation to non-blocking
372 pHandle->file.f_flags = O_NONBLOCK;
373
374 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_INFO, (ULONG)pcminfo);
375 if(ret != 0) {
376 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_INFO error %i\n", ret);
377 ret = UNIXToOSSError(ret);
378 goto fail;
379 }
380 if(i == 0) {//only need to do this once
381 if(pcminfo->name[0]) {
382 strncpy(pDevCaps->szDeviceName, pcminfo->name, sizeof(pDevCaps->szDeviceName));
383 }
384 else strncpy(pDevCaps->szDeviceName, pcminfo->id, sizeof(pDevCaps->szDeviceName));
385 }
386 printk("Device name: %s", pDevCaps->szDeviceName);
387 pWaveCaps->nrStreams = pcminfo->subdevices_count;
388
389 //get all hardware parameters
390 _snd_pcm_hw_params_any(params);
391 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)params);
392 if(ret != 0) {
393 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_HW_REFINE error %i\n", ret);
394 ret = UNIXToOSSError(ret);
395 goto fail;
396 }
397
398 pWaveCaps->ulMinChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min;
399 pWaveCaps->ulMaxChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;
400 pWaveCaps->ulChanFlags = 0;
401 if(pWaveCaps->ulMinChannels == 1) {
402 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_MONO;
403 }
404 if(pWaveCaps->ulMaxChannels >= 2) {
405 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_STEREO;
406 }
407 if(pWaveCaps->ulMaxChannels >= 4) {
408 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_QUAD;
409 }
410 if(pWaveCaps->ulMaxChannels >= 6) {
411 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_5_1;
412 }
413
414 pWaveCaps->ulMinRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min;
415 pWaveCaps->ulMaxRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max;
416
417 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_RATE_MASK);
418
419 pWaveCaps->ulRateFlags = mask->bits[0];
420
421 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
422
423 pWaveCaps->ulDataFormats = 0;
424
425 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
426 format_mask = mask->bits[0];
427 for(fmt=0;fmt<32;fmt++)
428 {
429 if(format_mask & (1 << fmt))
430 {
431 int f = ALSAToOSSDataType(fmt);
432 if (f >= 0)
433 pWaveCaps->ulDataFormats |= f;
434 }
435 }
436
437 OSS32_WaveClose(streamid);
438 streamid = 0;
439
440 }
441
442 //Check support for MPU401, FM & Wavetable MIDI
443 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
444 {
445 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
446 OSS32_MidiClose(streamid);
447 streamid = 0;
448 }
449 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
450 {
451 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
452 OSS32_MidiClose(streamid);
453 streamid = 0;
454 }
455 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
456 {
457 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
458 OSS32_MidiClose(streamid);
459 streamid = 0;
460 }
461 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
462 {
463 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
464 OSS32_MidiClose(streamid);
465 streamid = 0;
466 }
467
468 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
469 DebugInt3();
470 printk("OSS32_QueryDevCaps: OSS32_MixQueryName error\n");
471 goto fail;
472 }
473 printk("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName);
474 kfree(pcminfo);
475 streamid = 0;
476
477
478 return OSSERR_SUCCESS;
479
480fail:
481 printk("OSS32_QueryDevCaps failed\n");
482 DebugInt3();
483 if(streamid) OSS32_WaveClose(streamid);
484 if(pcminfo) kfree(pcminfo);
485
486 return ret;
487}
488//******************************************************************************
489//******************************************************************************
490OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
491{
492 soundhandle *pHandle;
493 int ret,i;
494
495 if (pStreamId)
496 *pStreamId = 0;
497 else
498 {
499 printk("ERROR: invalid stream id pointer passed\n");
500 return OSSERR_OUT_OF_MEMORY;
501 }
502
503 if(alsa_fops == NULL) {
504 DebugInt3();
505#ifdef DEBUG
506 dprintf(("OSS32_WaveOpen: no devices"));
507#endif
508 printk("OSS32_WaveOpen: no devices\n");
509
510 return OSSERR_NO_DEVICE_AVAILABLE;
511 }
512
513// printk("dev id: %i\n",deviceid);
514
515 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
516 if(pHandle == NULL) {
517 DebugInt3();
518 printk("OSS32_WaveOpen: out of memory\n");
519 return OSSERR_OUT_OF_MEMORY;
520 }
521 memset(pHandle, 0, sizeof(soundhandle));
522
523 //set operation to non-blocking
524 pHandle->file.f_flags = O_NONBLOCK;
525
526 //setup pointers in file structure (used internally by ALSA)
527 pHandle->file.f_dentry = &pHandle->d_entry;
528 pHandle->file.f_dentry->d_inode = &pHandle->inode;
529
530 switch(streamtype) {
531 case OSS32_STREAM_WAVEOUT:
532 pHandle->file.f_mode = FMODE_WRITE;
533 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
534 break;
535 case OSS32_STREAM_WAVEIN:
536 pHandle->file.f_mode = FMODE_READ;
537 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
538 break;
539 default:
540 DebugInt3();
541 kfree(pHandle);
542 printk("OSS32_WaveOpen: invalid parameter\n");
543 return OSSERR_INVALID_PARAMETER;
544 }
545
546 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
547 printk("OSS32_WaveOpen. ret: %i\n", ret);
548 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
549 if (ret == -16)
550 {
551 for (i=0; i < 8*256; i++)
552 {
553 if (opened_handles[i].handle != 0)
554 {
555 ret = 0;
556 if (pStreamId)
557 *pStreamId = (ULONG)opened_handles[i].handle;
558 opened_handles[i].reuse = 1; /* try to reuse */
559 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
560 {
561 if (!opened_handles[i].reuse)
562 {
563 //opened_handles[i].handle = 0;
564 kfree(opened_handles[i].handle); //free handle data
565 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
566 printk("OSS32_WaveOpen. Reopen ret: %i\n", ret);
567 }
568 else
569 {
570 kfree(pHandle);
571 pHandle = opened_handles[i].handle;
572 }
573 break;
574 }
575 }
576 }
577 }
578 else if (ret == 0)
579 {
580 for (i=0; i < 8*256; i++)
581 {
582 if (opened_handles[i].handle == 0)
583 {
584 opened_handles[i].handle = pHandle;
585 opened_handles[i].FileId = fileid;
586 break;
587 }
588 }
589 }
590
591 if(ret) {
592 kfree(pHandle);
593 DebugInt3();
594 printk("OSS32_WaveOpen: open error: %i\n",ret);
595 return UNIXToOSSError(ret);
596 }
597 pHandle->magic = MAGIC_WAVE_ALSA32;
598 if (pStreamId)
599 *pStreamId = (ULONG)pHandle;
600 // filling opened handles table
601 printk("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle);
602 return OSSERR_SUCCESS;
603}
604//******************************************************************************
605//******************************************************************************
606
607OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
608{
609 soundhandle *pHandle = (soundhandle *)streamid;
610 int ret = 0, i;
611
612 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
613 DebugInt3();
614 printk("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle);
615 return OSSERR_INVALID_STREAMID;
616 }
617
618 //set operation to non-blocking
619 pHandle->file.f_flags = O_NONBLOCK;
620
621 for (i=0; i < 8*256; i++)
622 {
623 if (opened_handles[i].handle == pHandle)
624 {
625 printk("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse);
626 if (!opened_handles[i].reuse)
627 {
628 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
629 opened_handles[i].handle = 0;
630 kfree(pHandle); //free handle data
631 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
632 } else
633 {
634 /* prepare for reuse */
635 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_RESET, 0);
636 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
637 }
638 break;
639 }
640 }
641
642 if (i >= 8*256)
643 {
644 //all already closed
645 printk("phandle %x not found\n", pHandle);
646// return OSSERR_SUCCESS;
647 }
648
649
650 if(ret) {
651 printk("Error closing wave. rc = %i\n", ret);
652 DebugInt3();
653 return UNIXToOSSError(ret);
654 }
655 printk("OSS32_WaveClose. streamid %X\n",(ULONG)pHandle);
656 return OSSERR_SUCCESS;
657}
658//******************************************************************************
659//******************************************************************************
660OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
661{
662 soundhandle *pHandle = (soundhandle *)streamid;
663 int ret;
664
665#ifdef DEBUG
666 dprintf(("OSS32_WavePrepare"));
667#endif
668
669 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
670 DebugInt3();
671//#ifdef DEBUG
672 printk("vladest: OSS32_WavePrepare: invalid streamID\n");
673//#endif
674
675 return OSSERR_INVALID_STREAMID;
676 }
677 //set operation to non-blocking
678 pHandle->file.f_flags = O_NONBLOCK;
679
680 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
681 if (ret)
682 printk("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle);
683
684 return UNIXToOSSError(ret);;
685}
686//******************************************************************************
687//******************************************************************************
688OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
689{
690 soundhandle *pHandle = (soundhandle *)streamid;
691 int ret;
692
693 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
694 DebugInt3();
695 return OSSERR_INVALID_STREAMID;
696 }
697 //set operation to non-blocking
698 pHandle->file.f_flags = O_NONBLOCK;
699 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
700 if (ret)
701 printk("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle);
702
703 return UNIXToOSSError(ret);;
704}
705//******************************************************************************
706//******************************************************************************
707OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
708{
709 soundhandle *pHandle = (soundhandle *)streamid;
710 int ret;
711
712 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
713 DebugInt3();
714 return OSSERR_INVALID_STREAMID;
715 }
716 //set operation to non-blocking
717 pHandle->file.f_flags = O_NONBLOCK;
718
719 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
720 if (ret)
721 printk("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle);
722
723 return UNIXToOSSError(ret);;
724}
725//******************************************************************************
726//******************************************************************************
727OSSRET OSS32_WavePause(OSSSTREAMID streamid)
728{
729 soundhandle *pHandle = (soundhandle *)streamid;
730 int ret;
731
732 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
733 DebugInt3();
734 return OSSERR_INVALID_STREAMID;
735 }
736 //set operation to non-blocking
737 pHandle->file.f_flags = O_NONBLOCK;
738
739 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
740 if (ret)
741 printk("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle);
742
743 return UNIXToOSSError(ret);;
744}
745//******************************************************************************
746//******************************************************************************
747OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
748{
749 soundhandle *pHandle = (soundhandle *)streamid;
750 int ret;
751
752 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
753 DebugInt3();
754 return OSSERR_INVALID_STREAMID;
755 }
756 //set operation to non-blocking
757 pHandle->file.f_flags = O_NONBLOCK;
758
759 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
760 if (ret)
761 printk("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle);
762
763 return UNIXToOSSError(ret);;
764}
765
766static unsigned rates[] = {
767 /* ATTENTION: these values depend on the definition in pcm.h! */
768 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
769 64000, 88200, 96000, 176400, 192000
770};
771
772//******************************************************************************
773//******************************************************************************
774OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
775{
776 soundhandle *pHandle = (soundhandle *)streamid;
777 struct snd_pcm_hw_params params;
778 struct snd_pcm_sw_params swparams;
779 struct snd_pcm_status status;
780
781 int ret, nrperiods, minnrperiods, maxnrperiods, samplesize,i;
782 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
783 ULONG periodbytes, minperiodbytes, maxperiodbytes;
784 BOOL fTryAgain = FALSE;
785 ULONG ulMinRate, ulMaxRate;
786
787 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
788
789 DebugInt3();
790 return OSSERR_INVALID_STREAMID;
791 }
792 if(pHwParams == NULL) {
793
794 DebugInt3();
795 return OSSERR_INVALID_PARAMETER;
796 }
797 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
798
799 DebugInt3();
800 return OSSERR_INVALID_PARAMETER;
801 }
802 if ((int)pHwParams->ulNumChannels <= 0) {
803 printk("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels);
804 DebugInt3();
805 return OSSERR_INVALID_PARAMETER;
806 }
807tryagain:
808 //set operation to non-blocking
809 pHandle->file.f_flags = O_NONBLOCK;
810
811 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
812 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
813 pHandle->doublesamplesize = samplesize * 2;
814 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
815 periodbytes = pHwParams->ulPeriodSize;
816 periodsize = bytes_to_samples(periodbytes);
817 // checking number of channels
818
819 dprintf(("channels: %ld, period size: %lx",pHwParams->ulNumChannels, periodbytes));
820
821 _snd_pcm_hw_params_any(&params);
822 do {
823 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
824 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
825 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
826 pHwParams->ulNumChannels, 0);
827 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
828 if (ret == 0) break;
829 pHwParams->ulNumChannels--;
830 } while(ret < 0 && pHwParams->ulNumChannels > 1);
831
832 dprintf(("channels selected: %d",pHwParams->ulNumChannels));
833
834 //get all hardware parameters
835 _snd_pcm_hw_params_any(&params);
836 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
837 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
838 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
839 OSSToALSADataType[pHwParams->ulDataType], 0);
840 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
841 if(ret != 0) {
842 dprintf(("invalid format %lx\n", OSSToALSADataType[pHwParams->ulDataType]));
843 return UNIXToOSSError(ret);
844 }
845 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
846 pHwParams->ulBitsPerSample, 0);
847 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
848 if(ret != 0) {
849 dprintf(("invalid number of sample bits %d\n", pHwParams->ulBitsPerSample));
850 return UNIXToOSSError(ret);
851 }
852 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
853 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
854 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
855 if(ret != 0) {
856 dprintf(("invalid number of frame bits %d\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels));
857 return UNIXToOSSError(ret);
858 }
859
860 //_snd_pcm_hw_params_any(&params);
861 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
862 pHwParams->ulBitsPerSample, 0);
863 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
864 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
865 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
866 OSSToALSADataType[pHwParams->ulDataType], 0);
867 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
868 pHwParams->ulNumChannels, 0);
869 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
870 pHwParams->ulSampleRate, 0);
871 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
872 if(ret != 0) {
873 dprintf(("32_WSetHwPms (first pass) error %d bps:%d fmt: %d ch: %d sr: %d\n",
874 ret,
875 pHwParams->ulBitsPerSample,
876 OSSToALSADataType[pHwParams->ulDataType],
877 pHwParams->ulNumChannels,
878 pHwParams->ulSampleRate));
879 //printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
880 // printk("will set to nearest\n");
881 _snd_pcm_hw_params_any(&params);
882 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
883 {
884 if (pHwParams->ulSampleRate >= rates[i] &&
885 pHwParams->ulSampleRate <= rates[i+1])
886 {
887 pHwParams->ulSampleRate = rates[i];
888 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
889 pHwParams->ulSampleRate, 0);
890 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
891 if(ret == 0)
892 {
893 _snd_pcm_hw_params_any(&params);
894 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
895 pHwParams->ulBitsPerSample, 0);
896 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
897 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
898 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
899 OSSToALSADataType[pHwParams->ulDataType], 0);
900 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
901 pHwParams->ulNumChannels, 0);
902 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
903 pHwParams->ulSampleRate, 0);
904 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
905 goto __next;
906 }
907 }
908 }
909 DebugInt3();
910 return UNIXToOSSError(ret);
911 }
912 __next:
913
914 //check period size against lower and upper boundaries
915 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
916 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
917 if(periodbytes < minperiodbytes) {
918 periodbytes = minperiodbytes;
919 }
920 else
921 if(periodbytes > maxperiodbytes) {
922 periodbytes = maxperiodbytes;
923 }
924
925 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
926 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
927 if(periodsize < minperiodsize) {
928 periodsize = minperiodsize;
929 }
930 else
931 if(periodsize > maxperiodsize) {
932 periodsize = maxperiodsize;
933 }
934
935 if(samples_to_bytes(periodsize) < periodbytes) {
936 periodbytes = samples_to_bytes(periodsize);
937 }
938 else
939 if(bytes_to_samples(periodbytes) < periodsize) {
940 periodsize = bytes_to_samples(periodbytes);
941 }
942
943 //make sure period size is a whole fraction of the buffer size
944 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
945 if(periodsize) {
946 nrperiods = bufsize/periodbytes;
947 }
948 else {
949 dprintf(("32_WSHwPrms error. Invalid periodsize (=0). closing file\n"));
950 DebugInt3();
951 return OSSERR_INVALID_PARAMETER;
952 }
953 //check nr of periods against lower and upper boundaries
954 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
955 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
956 if(nrperiods < minnrperiods) {
957 nrperiods = minnrperiods;
958 }
959 else
960 if(nrperiods > maxnrperiods) {
961 nrperiods = maxnrperiods;
962 }
963 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
964 //so we make sure it's an even number.
965 if(nrperiods == 1) {
966 dprintf(("32_WSHwPrms error. Invalid Num periods(=1). closing file\n"));
967 DebugInt3();
968 return OSSERR_INVALID_PARAMETER;
969 }
970 nrperiods &= ~1;
971
972 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
973 //period size and buffer size
974
975 _snd_pcm_hw_params_any(&params);
976 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
977 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
978 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
979 pHwParams->ulBitsPerSample, 0);
980 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
981 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
982 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
983 OSSToALSADataType[pHwParams->ulDataType], 0);
984 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
985 pHwParams->ulNumChannels, 0);
986 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
987 pHwParams->ulSampleRate, 0);
988 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
989 periodsize, 0);
990 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
991 periodbytes, 0);
992 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
993 nrperiods, 0);
994 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
995 periodsize*nrperiods, 0);
996 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
997 periodbytes*nrperiods, 0);
998
999
1000 dprintf(("HWP: SR rate %ld, BPS %ld, CH %ld, PRSZ %lx, periods %lx",
1001 pHwParams->ulSampleRate, pHwParams->ulBitsPerSample, pHwParams->ulNumChannels, periodsize, nrperiods));
1002
1003 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
1004 if (ret == -77 && fTryAgain == FALSE)
1005 {
1006 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1007 fTryAgain = TRUE;
1008 dprintf((" Error -77 from first IOCTL HW Parms"));
1009 goto tryagain;
1010 }
1011
1012 if(ret) {
1013 if(fTryAgain == FALSE) {
1014 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
1015 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1016 dprintf(("Period size min=%lx max=%lx", minperiodsize, maxperiodsize));
1017 if(minperiodsize > maxperiodsize) {
1018 //ALSA doesn't like the period size; try suggested one
1019 periodsize = maxperiodsize;
1020 periodbytes = samples_to_bytes(periodsize);
1021 dprintf((" Peroid size error IOCTL HW Parms"));
1022 fTryAgain = TRUE;
1023 goto tryagain;
1024 }
1025 }
1026 dprintf(("Error %ld second time.. Bailing", ret));
1027 return UNIXToOSSError(ret);
1028 }
1029
1030 //set silence threshold (all sizes in frames) (only needed for playback)
1031 if(pHandle->file.f_mode == FMODE_WRITE)
1032 {
1033 swparams.avail_min = periodsize;
1034 swparams.period_step = 1;
1035 if(nrperiods <= 2) {
1036 swparams.silence_size = (periodsize/2);
1037 }
1038 else {
1039 swparams.silence_size = periodsize;
1040 }
1041 swparams.silence_threshold = swparams.silence_size;
1042 swparams.sleep_min = 0;
1043 swparams.start_threshold = 1;
1044 swparams.stop_threshold = periodsize*nrperiods;
1045 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1046 swparams.xfer_align = periodsize;
1047
1048 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1049 }
1050
1051 total = 0;
1052 per_bytes = periodbytes;
1053 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1054 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1055 (status.state != SNDRV_PCM_STATE_SETUP) &&
1056 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1057 (status.state != SNDRV_PCM_STATE_DRAINING))) {
1058 dprintf(("Device is not in proper state: %lx. Calling prepare\n", status.state));
1059 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1060 }
1061 return UNIXToOSSError(ret);
1062}
1063
1064
1065//******************************************************************************
1066ULONG CountWv=0;
1067ULONG LockAdd=0;
1068extern ULONG xchg( ULONG *p, ULONG x);
1069#pragma aux xchg = "xchg [esi],eax" parm [ESI][EAX] value [EAX];
1070//******************************************************************************
1071OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG ulBuffer, ULONG ulReqSize, ULONG *pulTransferred, int pcm)
1072{
1073 soundhandle *pHandle = (soundhandle *)streamid;
1074 struct snd_pcm_status status;
1075 int iRet, align, iRet1;
1076 LONG ulTransferred;
1077 ULONG ulPosition, ulI, ulJ, ulSize;
1078 char *buf;
1079
1080// return OSSERR_SUCCESS;
1081
1082 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1083 DebugInt3();
1084 return OSSERR_INVALID_STREAMID;
1085 }
1086 if(pulTransferred == NULL || ulBuffer == 0 || ulReqSize == 0) {
1087 DebugInt3();
1088 return OSSERR_INVALID_PARAMETER;
1089 }
1090
1091 //set operation to non-blocking
1092 pHandle->file.f_flags = O_NONBLOCK;
1093
1094 /* get the status of the circular dma buffer */
1095 iRet = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1096
1097 if(iRet) {
1098 DebugInt3();
1099 return UNIXToOSSError(iRet);
1100 }
1101
1102 CountWv++;
1103 ulTransferred = 0;
1104 *pulTransferred = 0;
1105 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1106 {
1107 case SNDRV_MINOR_PCM_PLAYBACK:
1108
1109#if 1
1110 //first check how much room is left in the circular dma buffer
1111 //this is done to make sure we don't block inside ALSA while trying to write
1112 //more data than fits in the internal dma buffer.
1113 ulSize = min(ulReqSize, samples_to_bytes(status.avail));
1114
1115 if (ulSize == 0) {
1116 rprintf(("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n"));
1117 rprintf(("state=%x avail=%x ReqSize=%x\n", status.state, status.avail, ulReqSize));
1118 *pulTransferred = 0;
1119 return OSSERR_BUFFER_FULL;
1120 }
1121
1122 if (status.state == SNDRV_PCM_STATE_XRUN) {
1123 rprintf(("Internal Error: Xrun\n"));
1124 }
1125
1126 iRet = pHandle->file.f_op->write(&pHandle->file, (char *)ulBuffer, ulSize, &pHandle->file.f_pos);
1127
1128 if (iRet < 0 ) break;
1129 ulTransferred = iRet;
1130#else
1131 //first check how much room is left in the circular dma buffer
1132 //this is done to make sure we don't block inside ALSA while trying to write
1133 //more data than fits in the internal dma buffer.
1134 ulSize = min(ulReqSize, samples_to_bytes(status.avail));
1135
1136 //printk("OSS32_WaveAddBuffer N:%d hw=%x app=%x avail=%x req size=%x size=%x\n",
1137 // CountWv, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), ulSize, ulReqSize);
1138
1139 if (ulSize == 0) {
1140 rprintf(("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n"));
1141 rprintf(("state=%x avail=%x SizeReq=%x\n", status.state, status.avail, ulReqSize));
1142 *pulTransferred = 0;
1143 return OSSERR_BUFFER_FULL;
1144 }
1145
1146 // size should be aligned to channels number * samplesize //PS+++ what is it and why?!?!?!
1147 ulJ = 10; // 10 try if error
1148 iRet = -11;
1149 while (ulSize && ulJ && iRet)
1150 {
1151 for (i=0; i < 1000; i++)
1152 {
1153 iRet1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1154 // If here any state and have free buffer to any byte
1155 if ((status.state != SNDRV_PCM_STATE_XRUN ) && samples_to_bytes(status.avail) ) break;
1156 if (status.state == SNDRV_PCM_STATE_XRUN) {
1157 rprintf(("Internal Error: Xrun\n"));
1158 }
1159 if (i > 998) {
1160 // 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));
1161 iRet1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1162 }
1163 }
1164
1165 if (iRet1 < 0) {
1166 // printk("Status Error iRet1:%i trans: %i need %d tot:%d\n",iRet1,ulTransferred, ulReqSize,ulSize);
1167 break; // We have any global error, don't try more
1168 }
1169
1170 iRet = pHandle->file.f_op->write(&pHandle->file, (char *)ulBuffer, ulSize, &pHandle->file.f_pos);
1171
1172 if (iRet < 0 ) { // We have any error, don't try more
1173 ulJ--;
1174 if ( iRet != -11 )
1175 iRet1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1176 // printk("Error ret:%i ret1:%i trans: %d need %d tot:%d\n",iRet,iRet1,ulTransferred, ulReqSize,ulSize);
1177 continue;
1178 }
1179 if (iRet == 0) continue;
1180 ulTransferred += iRet;
1181 // printk("written: now: %d, trans: %d need %d tot:%d\n", iRet, ulTransferred, ulReqSize,ulSize);
1182 ulBuffer += iRet;
1183 if (ulSize > iRet) ulSize -= iRet;
1184 else ulSize = 0;
1185 }
1186#endif
1187 break;
1188 case SNDRV_MINOR_PCM_CAPTURE:
1189 //printk("OSS32_WaveAddBuffer N:%d state=%x hw=%x app=%x avail=%x size=%x\n",
1190 // CountWv, status.state, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), ulReqSize);
1191// Need to handle overrun condition when reading
1192// if (status.state == SNDRV_PCM_STATE_XRUN) {
1193// *pulTransferred = 0;
1194// return OSSERR_BUFFER_FULL;
1195// }
1196 iRet = pHandle->file.f_op->read(&pHandle->file, (char *)ulBuffer, ulReqSize, &pHandle->file.f_pos);
1197 if (iRet < 0) {
1198 *pulTransferred = 0;
1199 return OSSERR_BUFFER_FULL;
1200 }
1201 ulTransferred = iRet;
1202 break;
1203 default:
1204 DebugInt3();
1205 return OSSERR_INVALID_PARAMETER;
1206 }
1207
1208 total += ulTransferred;
1209 *pulTransferred = ulTransferred;
1210 prev_size = ulTransferred;
1211// if (*pulTransferred < ulSize)
1212// {
1213// printk("warning: ulTransferred [%d] less than requested [%d]\n", *pulTransferred, ulSize);
1214// iRet1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1215// }
1216
1217 return OSSERR_SUCCESS;
1218}
1219//******************************************************************************
1220//******************************************************************************
1221OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1222{
1223 soundhandle *pHandle = (soundhandle *)streamid;
1224 struct snd_pcm_status status;
1225 int ret;
1226
1227 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1228 DebugInt3();
1229 return OSSERR_INVALID_STREAMID;
1230 }
1231 if(pPosition == NULL) {
1232 DebugInt3();
1233 return OSSERR_INVALID_PARAMETER;
1234 }
1235
1236 //set operation to non-blocking
1237 pHandle->file.f_flags = O_NONBLOCK;
1238
1239 //Get the status of the stream
1240 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1241
1242 if(ret) {
1243 DebugInt3();
1244 return UNIXToOSSError(ret);
1245 }
1246
1247 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1248 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1249 return OSSERR_SUCCESS;
1250}
1251//******************************************************************************
1252//******************************************************************************
1253OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1254{
1255 soundhandle *pHandle = (soundhandle *)streamid;
1256 struct snd_pcm_status status;
1257 int ret;
1258
1259 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1260 DebugInt3();
1261 return OSSERR_INVALID_STREAMID;
1262 }
1263 if(pBytesAvail == NULL) {
1264 DebugInt3();
1265 return OSSERR_INVALID_PARAMETER;
1266 }
1267
1268 //set operation to non-blocking
1269 pHandle->file.f_flags = O_NONBLOCK;
1270
1271 //Get the nr of bytes left in the audio buffer
1272 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1273
1274 if(ret) {
1275 DebugInt3();
1276 return UNIXToOSSError(ret);
1277 }
1278 ret = samples_to_bytes(status.avail);
1279
1280 *pBytesAvail = ret;
1281 return OSSERR_SUCCESS;
1282}
1283//******************************************************************************
1284//******************************************************************************
1285OSSRET OSS32_WaveGetHwPtr(ULONG streamid, ULONG *pPosition)
1286{
1287 soundhandle *pHandle = (soundhandle *)streamid;
1288 struct snd_pcm_status status;
1289 int ret;
1290
1291 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1292 DebugInt3();
1293 return OSSERR_INVALID_STREAMID;
1294 }
1295 if(pPosition == NULL) {
1296 DebugInt3();
1297 return OSSERR_INVALID_PARAMETER;
1298 }
1299
1300 //set operation to non-blocking
1301 pHandle->file.f_flags = O_NONBLOCK;
1302
1303 //Get the status of the stream
1304 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1305
1306 if(ret) {
1307 DebugInt3();
1308 return UNIXToOSSError(ret);
1309 }
1310
1311 *pPosition = samples_to_bytes(status.appl_ptr); //return new hardware position
1312 return OSSERR_SUCCESS;
1313}
1314//******************************************************************************
1315//******************************************************************************
1316OSSRET OSS32_WaveGetStatus(ULONG streamid, ULONG *pStatus)
1317{
1318 soundhandle *pHandle = (soundhandle *)streamid;
1319 struct snd_pcm_status status;
1320 int ret;
1321
1322 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1323 DebugInt3();
1324 return OSSERR_INVALID_STREAMID;
1325 }
1326 if(pStatus == NULL) {
1327 DebugInt3();
1328 return OSSERR_INVALID_PARAMETER;
1329 }
1330
1331 //set operation to non-blocking
1332 pHandle->file.f_flags = O_NONBLOCK;
1333
1334 //Get the status of the stream
1335 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1336
1337 if(ret) {
1338 DebugInt3();
1339 return UNIXToOSSError(ret);
1340 }
1341
1342 *pStatus = status.state;
1343 return OSSERR_SUCCESS;
1344}
1345//******************************************************************************
1346//******************************************************************************
1347OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1348{
1349 soundhandle *pHandle = (soundhandle *)streamid;
1350 int ret;
1351 int leftvol, rightvol;
1352 struct snd_pcm_volume pcm_volume;
1353
1354 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1355 DebugInt3();
1356 return OSSERR_INVALID_STREAMID;
1357 }
1358 //set operation to non-blocking
1359 pHandle->file.f_flags = O_NONBLOCK;
1360
1361 leftvol = GET_VOLUME_L(volume);
1362 rightvol = GET_VOLUME_R(volume);
1363
1364 pcm_volume.nrchannels = 4;
1365 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1366 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1367 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1368 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1369
1370 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1371 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1372 return UNIXToOSSError(ret);
1373}
1374//******************************************************************************
1375
Note: See TracBrowser for help on using the repository browser.