source: GPL/trunk/lib32/sound.c@ 536

Last change on this file since 536 was 535, checked in by David Azarewicz, 15 years ago

version string changes
File size: 49.1 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 dprintf(("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 dprintf(("OSS32_QueryDevCaps"));
334// max_ch = GetMaxChannels(deviceid, OSS32_CAPS_WAVE_PLAYBACK);
335
336 //these structures are too big to put on the stack
337 pcminfo = (struct snd_pcm_info *)kmalloc(sizeof(struct snd_pcm_info)+sizeof(struct snd_pcm_hw_params), GFP_KERNEL);
338 if(pcminfo == NULL) {
339 DebugInt3();
340 rprintf(("OSS32_QueryDevCaps: out of memory\n"));
341 return OSSERR_OUT_OF_MEMORY;
342 }
343 params = (struct snd_pcm_hw_params *)(pcminfo+1);
344
345 dprintf(("Number of cards=%i dev id=%i", nrCardsDetected, deviceid));
346 pDevCaps->nrDevices = 1;//nrCardsDetected;
347// pDevCaps->nrDevices = nrCardsDetected;
348 pDevCaps->ulCaps = OSS32_CAPS_WAVE_PLAYBACK | OSS32_CAPS_WAVE_CAPTURE;
349
350 //query wave in & out caps
351 for(i=0;i<2;i++)
352 {
353 PWAVE_CAPS pWaveCaps = (i == 0) ? &pDevCaps->waveOutCaps : &pDevCaps->waveInCaps;
354
355 ret = OSS32_WaveOpen(deviceid, (i == 0) ? OSS32_STREAM_WAVEOUT : OSS32_STREAM_WAVEIN, &streamid, 0, 0);
356 if(ret != OSSERR_SUCCESS)
357 {
358 rprintf(("OSS32_QueryDevCaps: wave open error %i\n", ret));
359 DebugInt3();
360 goto fail;
361 }
362 pHandle = (soundhandle *)streamid;
363 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
364 rprintf(("OSS32_QueryDevCaps: invalid stream id \n"));
365 ret = OSSERR_INVALID_STREAMID;
366 goto fail;
367 }
368 //set operation to non-blocking
369 pHandle->file.f_flags = O_NONBLOCK;
370
371 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_INFO, (ULONG)pcminfo);
372 if(ret != 0) {
373 rprintf(("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_INFO error %i\n", ret));
374 ret = UNIXToOSSError(ret);
375 goto fail;
376 }
377 if(i == 0) {//only need to do this once
378 if(pcminfo->name[0]) {
379 strncpy(pDevCaps->szDeviceName, pcminfo->name, sizeof(pDevCaps->szDeviceName));
380 }
381 else strncpy(pDevCaps->szDeviceName, pcminfo->id, sizeof(pDevCaps->szDeviceName));
382 }
383 dprintf(("Device name: %s", pDevCaps->szDeviceName));
384 pWaveCaps->nrStreams = pcminfo->subdevices_count;
385
386 //get all hardware parameters
387 _snd_pcm_hw_params_any(params);
388 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)params);
389 if(ret != 0) {
390 rprintf(("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_HW_REFINE error %i\n", ret));
391 ret = UNIXToOSSError(ret);
392 goto fail;
393 }
394
395 pWaveCaps->ulMinChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min;
396 pWaveCaps->ulMaxChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;
397 pWaveCaps->ulChanFlags = 0;
398 if(pWaveCaps->ulMinChannels == 1) {
399 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_MONO;
400 }
401 if(pWaveCaps->ulMaxChannels >= 2) {
402 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_STEREO;
403 }
404 if(pWaveCaps->ulMaxChannels >= 4) {
405 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_QUAD;
406 }
407 if(pWaveCaps->ulMaxChannels >= 6) {
408 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_5_1;
409 }
410
411 pWaveCaps->ulMinRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min;
412 pWaveCaps->ulMaxRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max;
413
414 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_RATE_MASK);
415
416 pWaveCaps->ulRateFlags = mask->bits[0];
417
418 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
419
420 pWaveCaps->ulDataFormats = 0;
421
422 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
423 format_mask = mask->bits[0];
424 for(fmt=0;fmt<32;fmt++)
425 {
426 if(format_mask & (1 << fmt))
427 {
428 int f = ALSAToOSSDataType(fmt);
429 if (f >= 0)
430 pWaveCaps->ulDataFormats |= f;
431 }
432 }
433
434 OSS32_WaveClose(streamid);
435 streamid = 0;
436
437 }
438
439 //Check support for MPU401, FM & Wavetable MIDI
440 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
441 {
442 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
443 OSS32_MidiClose(streamid);
444 streamid = 0;
445 }
446 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
447 {
448 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
449 OSS32_MidiClose(streamid);
450 streamid = 0;
451 }
452 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
453 {
454 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
455 OSS32_MidiClose(streamid);
456 streamid = 0;
457 }
458 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
459 {
460 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
461 OSS32_MidiClose(streamid);
462 streamid = 0;
463 }
464
465 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
466 DebugInt3();
467 rprintf(("OSS32_QueryDevCaps: OSS32_MixQueryName error\n"));
468 goto fail;
469 }
470 dprintf(("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName));
471 kfree(pcminfo);
472 streamid = 0;
473
474
475 return OSSERR_SUCCESS;
476
477fail:
478 rprintf(("OSS32_QueryDevCaps failed\n"));
479 DebugInt3();
480 if(streamid) OSS32_WaveClose(streamid);
481 if(pcminfo) kfree(pcminfo);
482
483 return ret;
484}
485//******************************************************************************
486//******************************************************************************
487OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
488{
489 soundhandle *pHandle;
490 int ret,i;
491
492 if (pStreamId)
493 *pStreamId = 0;
494 else
495 {
496 rprintf(("ERROR: invalid stream id pointer\n"));
497 return OSSERR_OUT_OF_MEMORY;
498 }
499
500 if(alsa_fops == NULL) {
501 DebugInt3();
502 rprintf(("OSS32_WaveOpen: no devices"));
503
504 return OSSERR_NO_DEVICE_AVAILABLE;
505 }
506
507 //dprintf(("dev id: %i\n",deviceid));
508
509 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
510 if(pHandle == NULL) {
511 DebugInt3();
512 rprintf(("OSS32_WaveOpen: out of memory\n"));
513 return OSSERR_OUT_OF_MEMORY;
514 }
515 memset(pHandle, 0, sizeof(soundhandle));
516
517 //set operation to non-blocking
518 pHandle->file.f_flags = O_NONBLOCK;
519
520 //setup pointers in file structure (used internally by ALSA)
521 pHandle->file.f_dentry = &pHandle->d_entry;
522 pHandle->file.f_dentry->d_inode = &pHandle->inode;
523
524 switch(streamtype) {
525 case OSS32_STREAM_WAVEOUT:
526 pHandle->file.f_mode = FMODE_WRITE;
527 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
528 break;
529 case OSS32_STREAM_WAVEIN:
530 pHandle->file.f_mode = FMODE_READ;
531 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
532 break;
533 default:
534 DebugInt3();
535 kfree(pHandle);
536 rprintf(("OSS32_WaveOpen: invalid parameter\n"));
537 return OSSERR_INVALID_PARAMETER;
538 }
539
540 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
541 //dprintf(("OSS32_WaveOpen. ret: %i\n", ret));
542 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
543 if (ret == -16)
544 {
545 for (i=0; i < 8*256; i++)
546 {
547 if (opened_handles[i].handle != 0)
548 {
549 ret = 0;
550 if (pStreamId)
551 *pStreamId = (ULONG)opened_handles[i].handle;
552 opened_handles[i].reuse = 1; /* try to reuse */
553 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
554 {
555 if (!opened_handles[i].reuse)
556 {
557 //opened_handles[i].handle = 0;
558 kfree(opened_handles[i].handle); //free handle data
559 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
560 dprintf(("OSS32_WaveOpen. Reopen ret: %i\n", ret));
561 }
562 else
563 {
564 kfree(pHandle);
565 pHandle = opened_handles[i].handle;
566 }
567 break;
568 }
569 }
570 }
571 }
572 else if (ret == 0)
573 {
574 for (i=0; i < 8*256; i++)
575 {
576 if (opened_handles[i].handle == 0)
577 {
578 opened_handles[i].handle = pHandle;
579 opened_handles[i].FileId = fileid;
580 break;
581 }
582 }
583 }
584
585 if(ret) {
586 kfree(pHandle);
587 DebugInt3();
588 rprintf(("OSS32_WaveOpen: open error: %i\n",ret));
589 return UNIXToOSSError(ret);
590 }
591 pHandle->magic = MAGIC_WAVE_ALSA32;
592 if (pStreamId)
593 *pStreamId = (ULONG)pHandle;
594 // filling opened handles table
595 dprintf(("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle));
596 return OSSERR_SUCCESS;
597}
598//******************************************************************************
599//******************************************************************************
600
601OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
602{
603 soundhandle *pHandle = (soundhandle *)streamid;
604 int ret = 0, i;
605
606 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
607 DebugInt3();
608 rprintf(("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle));
609 return OSSERR_INVALID_STREAMID;
610 }
611
612 //set operation to non-blocking
613 pHandle->file.f_flags = O_NONBLOCK;
614
615 for (i=0; i < 8*256; i++)
616 {
617 if (opened_handles[i].handle == pHandle)
618 {
619 dprintf(("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse));
620 if (!opened_handles[i].reuse)
621 {
622 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
623 opened_handles[i].handle = 0;
624 kfree(pHandle); //free handle data
625 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
626 } else
627 {
628 /* prepare for reuse */
629 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_RESET, 0);
630 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
631 }
632 break;
633 }
634 }
635
636 if (i >= 8*256)
637 {
638 //all already closed
639 dprintf(("phandle %x not found\n", pHandle));
640// return OSSERR_SUCCESS;
641 }
642
643
644 if(ret) {
645 dprintf(("Error closing wave. rc = %i\n", ret));
646 DebugInt3();
647 return UNIXToOSSError(ret);
648 }
649 dprintf(("OSS32_WaveClose. streamid %X\n", (ULONG)pHandle));
650 return OSSERR_SUCCESS;
651}
652//******************************************************************************
653//******************************************************************************
654OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
655{
656 soundhandle *pHandle = (soundhandle *)streamid;
657 int ret;
658
659 dprintf(("OSS32_WavePrepare"));
660
661 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
662 DebugInt3();
663 rprintf(("vladest: OSS32_WavePrepare: invalid streamID\n"));
664
665 return OSSERR_INVALID_STREAMID;
666 }
667 //set operation to non-blocking
668 pHandle->file.f_flags = O_NONBLOCK;
669
670 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
671 if (ret)
672 rprintf(("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle));
673
674 return UNIXToOSSError(ret);;
675}
676//******************************************************************************
677//******************************************************************************
678OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
679{
680 soundhandle *pHandle = (soundhandle *)streamid;
681 int ret;
682
683 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
684 DebugInt3();
685 return OSSERR_INVALID_STREAMID;
686 }
687 //set operation to non-blocking
688 pHandle->file.f_flags = O_NONBLOCK;
689 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
690 if (ret)
691 rprintf(("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle));
692
693 return UNIXToOSSError(ret);;
694}
695//******************************************************************************
696//******************************************************************************
697OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
698{
699 soundhandle *pHandle = (soundhandle *)streamid;
700 int ret;
701
702 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
703 DebugInt3();
704 return OSSERR_INVALID_STREAMID;
705 }
706 //set operation to non-blocking
707 pHandle->file.f_flags = O_NONBLOCK;
708
709 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
710 if (ret)
711 rprintf(("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle));
712
713 return UNIXToOSSError(ret);;
714}
715//******************************************************************************
716//******************************************************************************
717OSSRET OSS32_WavePause(OSSSTREAMID streamid)
718{
719 soundhandle *pHandle = (soundhandle *)streamid;
720 int ret;
721
722 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
723 DebugInt3();
724 return OSSERR_INVALID_STREAMID;
725 }
726 //set operation to non-blocking
727 pHandle->file.f_flags = O_NONBLOCK;
728
729 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
730 if (ret)
731 rprintf(("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle));
732
733 return UNIXToOSSError(ret);;
734}
735//******************************************************************************
736//******************************************************************************
737OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
738{
739 soundhandle *pHandle = (soundhandle *)streamid;
740 int ret;
741
742 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
743 DebugInt3();
744 return OSSERR_INVALID_STREAMID;
745 }
746 //set operation to non-blocking
747 pHandle->file.f_flags = O_NONBLOCK;
748
749 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
750 if (ret)
751 rprintf(("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle));
752
753 return UNIXToOSSError(ret);;
754}
755
756static unsigned rates[] = {
757 /* ATTENTION: these values depend on the definition in pcm.h! */
758 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
759 64000, 88200, 96000, 176400, 192000
760};
761
762//******************************************************************************
763//******************************************************************************
764OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
765{
766 soundhandle *pHandle = (soundhandle *)streamid;
767 struct snd_pcm_hw_params params;
768 struct snd_pcm_sw_params swparams;
769 struct snd_pcm_status status;
770
771 int ret, nrperiods, minnrperiods, maxnrperiods, samplesize,i;
772 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
773 ULONG periodbytes, minperiodbytes, maxperiodbytes;
774 BOOL fTryAgain = FALSE;
775 ULONG ulMinRate, ulMaxRate;
776
777 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
778
779 DebugInt3();
780 return OSSERR_INVALID_STREAMID;
781 }
782 if(pHwParams == NULL) {
783
784 DebugInt3();
785 return OSSERR_INVALID_PARAMETER;
786 }
787 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
788
789 DebugInt3();
790 return OSSERR_INVALID_PARAMETER;
791 }
792 if ((int)pHwParams->ulNumChannels <= 0) {
793 rprintf(("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels));
794 DebugInt3();
795 return OSSERR_INVALID_PARAMETER;
796 }
797tryagain:
798 //set operation to non-blocking
799 pHandle->file.f_flags = O_NONBLOCK;
800
801 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
802 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
803 pHandle->doublesamplesize = samplesize * 2;
804 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
805 periodbytes = pHwParams->ulPeriodSize;
806 periodsize = bytes_to_samples(periodbytes);
807 // checking number of channels
808
809 dprintf(("channels: %ld, period size: %lx",pHwParams->ulNumChannels, periodbytes));
810
811 _snd_pcm_hw_params_any(&params);
812 do {
813 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
814 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
815 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
816 pHwParams->ulNumChannels, 0);
817 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
818 if (ret == 0) break;
819 pHwParams->ulNumChannels--;
820 } while(ret < 0 && pHwParams->ulNumChannels > 1);
821
822 dprintf(("channels selected: %d",pHwParams->ulNumChannels));
823
824 //get all hardware parameters
825 _snd_pcm_hw_params_any(&params);
826 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
827 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
828 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
829 OSSToALSADataType[pHwParams->ulDataType], 0);
830 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
831 if(ret != 0) {
832 rprintf(("invalid format %lx\n", OSSToALSADataType[pHwParams->ulDataType]));
833 return UNIXToOSSError(ret);
834 }
835 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
836 pHwParams->ulBitsPerSample, 0);
837 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
838 if(ret != 0) {
839 rprintf(("invalid number of sample bits %d\n", pHwParams->ulBitsPerSample));
840 return UNIXToOSSError(ret);
841 }
842 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
843 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
844 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
845 if(ret != 0) {
846 rprintf(("invalid number of frame bits %d\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels));
847 return UNIXToOSSError(ret);
848 }
849
850 //_snd_pcm_hw_params_any(&params);
851 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
852 pHwParams->ulBitsPerSample, 0);
853 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
854 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
855 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
856 OSSToALSADataType[pHwParams->ulDataType], 0);
857 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
858 pHwParams->ulNumChannels, 0);
859 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
860 pHwParams->ulSampleRate, 0);
861 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
862 if(ret != 0) {
863 rprintf(("32_WSetHwPms (first pass) error %d bps:%d fmt: %d ch: %d sr: %d\n",
864 ret,
865 pHwParams->ulBitsPerSample,
866 OSSToALSADataType[pHwParams->ulDataType],
867 pHwParams->ulNumChannels,
868 pHwParams->ulSampleRate));
869 //printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
870 // printk("will set to nearest\n");
871 _snd_pcm_hw_params_any(&params);
872 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
873 {
874 if (pHwParams->ulSampleRate >= rates[i] &&
875 pHwParams->ulSampleRate <= rates[i+1])
876 {
877 pHwParams->ulSampleRate = rates[i];
878 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
879 pHwParams->ulSampleRate, 0);
880 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
881 if(ret == 0)
882 {
883 _snd_pcm_hw_params_any(&params);
884 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
885 pHwParams->ulBitsPerSample, 0);
886 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
887 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
888 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
889 OSSToALSADataType[pHwParams->ulDataType], 0);
890 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
891 pHwParams->ulNumChannels, 0);
892 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
893 pHwParams->ulSampleRate, 0);
894 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
895 goto __next;
896 }
897 }
898 }
899 DebugInt3();
900 return UNIXToOSSError(ret);
901 }
902 __next:
903
904 //check period size against lower and upper boundaries
905 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
906 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
907 if(periodbytes < minperiodbytes) {
908 periodbytes = minperiodbytes;
909 }
910 else
911 if(periodbytes > maxperiodbytes) {
912 periodbytes = maxperiodbytes;
913 }
914
915 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
916 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
917 if(periodsize < minperiodsize) {
918 periodsize = minperiodsize;
919 }
920 else
921 if(periodsize > maxperiodsize) {
922 periodsize = maxperiodsize;
923 }
924
925 if(samples_to_bytes(periodsize) < periodbytes) {
926 periodbytes = samples_to_bytes(periodsize);
927 }
928 else
929 if(bytes_to_samples(periodbytes) < periodsize) {
930 periodsize = bytes_to_samples(periodbytes);
931 }
932
933 //make sure period size is a whole fraction of the buffer size
934 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
935 if(periodsize) {
936 nrperiods = bufsize/periodbytes;
937 }
938 else {
939 rprintf(("32_WSHwPrms error. Invalid periodsize (=0). closing file\n"));
940 DebugInt3();
941 return OSSERR_INVALID_PARAMETER;
942 }
943 //check nr of periods against lower and upper boundaries
944 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
945 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
946 if(nrperiods < minnrperiods) {
947 nrperiods = minnrperiods;
948 }
949 else
950 if(nrperiods > maxnrperiods) {
951 nrperiods = maxnrperiods;
952 }
953 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
954 //so we make sure it's an even number.
955 if(nrperiods == 1) {
956 rprintf(("32_WSHwPrms error. Invalid Num periods(=1). closing file\n"));
957 DebugInt3();
958 return OSSERR_INVALID_PARAMETER;
959 }
960 nrperiods &= ~1;
961
962 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
963 //period size and buffer size
964
965 _snd_pcm_hw_params_any(&params);
966 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
967 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
968 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
969 pHwParams->ulBitsPerSample, 0);
970 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
971 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
972 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
973 OSSToALSADataType[pHwParams->ulDataType], 0);
974 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
975 pHwParams->ulNumChannels, 0);
976 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
977 pHwParams->ulSampleRate, 0);
978 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
979 periodsize, 0);
980 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
981 periodbytes, 0);
982 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
983 nrperiods, 0);
984 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
985 periodsize*nrperiods, 0);
986 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
987 periodbytes*nrperiods, 0);
988
989
990 dprintf(("HWP: SR rate %ld, BPS %ld, CH %ld, PRSZ %lx, periods %lx",
991 pHwParams->ulSampleRate, pHwParams->ulBitsPerSample, pHwParams->ulNumChannels, periodsize, nrperiods));
992
993 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
994 if (ret == -77 && fTryAgain == FALSE)
995 {
996 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
997 fTryAgain = TRUE;
998 rprintf((" Error -77 from first IOCTL HW Parms"));
999 goto tryagain;
1000 }
1001
1002 if(ret) {
1003 if(fTryAgain == FALSE) {
1004 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
1005 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1006 dprintf(("Period size min=%lx max=%lx", minperiodsize, maxperiodsize));
1007 if(minperiodsize > maxperiodsize) {
1008 //ALSA doesn't like the period size; try suggested one
1009 periodsize = maxperiodsize;
1010 periodbytes = samples_to_bytes(periodsize);
1011 dprintf((" Peroid size error IOCTL HW Parms"));
1012 fTryAgain = TRUE;
1013 goto tryagain;
1014 }
1015 }
1016 rprintf(("Error %ld second time.. Bailing", ret));
1017 return UNIXToOSSError(ret);
1018 }
1019
1020 //set silence threshold (all sizes in frames) (only needed for playback)
1021 if(pHandle->file.f_mode == FMODE_WRITE)
1022 {
1023 swparams.avail_min = periodsize;
1024 swparams.period_step = 1;
1025 if(nrperiods <= 2) {
1026 swparams.silence_size = (periodsize/2);
1027 }
1028 else {
1029 swparams.silence_size = periodsize;
1030 }
1031 swparams.silence_threshold = swparams.silence_size;
1032 swparams.sleep_min = 0;
1033 swparams.start_threshold = 1;
1034 swparams.stop_threshold = periodsize*nrperiods;
1035 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1036 swparams.xfer_align = periodsize;
1037
1038 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1039 }
1040
1041 total = 0;
1042 per_bytes = periodbytes;
1043 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1044 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1045 (status.state != SNDRV_PCM_STATE_SETUP) &&
1046 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1047 (status.state != SNDRV_PCM_STATE_DRAINING))) {
1048 rprintf(("Device is not in proper state: %lx. Calling prepare\n", status.state));
1049 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1050 }
1051 return UNIXToOSSError(ret);
1052}
1053
1054
1055//******************************************************************************
1056ULONG CountWv=0;
1057ULONG LockAdd=0;
1058extern ULONG xchg( ULONG *p, ULONG x);
1059#pragma aux xchg = "xchg [esi],eax" parm [ESI][EAX] value [EAX];
1060//******************************************************************************
1061OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG ulBuffer, ULONG ulReqSize, ULONG *pulTransferred, int pcm)
1062{
1063 soundhandle *pHandle = (soundhandle *)streamid;
1064 struct snd_pcm_status status;
1065 int iRet, align, iRet1;
1066 LONG ulTransferred;
1067 ULONG ulPosition, ulI, ulJ, ulSize;
1068 char *buf;
1069
1070// return OSSERR_SUCCESS;
1071
1072 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1073 DebugInt3();
1074 return OSSERR_INVALID_STREAMID;
1075 }
1076 if(pulTransferred == NULL || ulBuffer == 0 || ulReqSize == 0) {
1077 DebugInt3();
1078 return OSSERR_INVALID_PARAMETER;
1079 }
1080
1081 //set operation to non-blocking
1082 pHandle->file.f_flags = O_NONBLOCK;
1083
1084 /* get the status of the circular dma buffer */
1085 iRet = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1086
1087 if(iRet) {
1088 DebugInt3();
1089 return UNIXToOSSError(iRet);
1090 }
1091
1092 CountWv++;
1093 ulTransferred = 0;
1094 *pulTransferred = 0;
1095 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1096 {
1097 case SNDRV_MINOR_PCM_PLAYBACK:
1098
1099#if 1
1100 //first check how much room is left in the circular dma buffer
1101 //this is done to make sure we don't block inside ALSA while trying to write
1102 //more data than fits in the internal dma buffer.
1103 ulSize = min(ulReqSize, samples_to_bytes(status.avail));
1104
1105 if (ulSize == 0) {
1106 rprintf(("OSS32_WaveAddBuffer: no room left in hardware buffer!!"));
1107 rprintf(("state=%x avail=%x ReqSize=%x", status.state, status.avail, ulReqSize));
1108 *pulTransferred = 0;
1109 return OSSERR_BUFFER_FULL;
1110 }
1111
1112 //rprintf(("AddBuffer: state=%x avail=%x ReqSize=%x", status.state, status.avail, ulReqSize));
1113 if (status.state == SNDRV_PCM_STATE_XRUN) {
1114 rprintf(("Internal Error: Xrun"));
1115 iRet = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1116 if (iRet < 0) {
1117 rprintf(("Prepare failed: state=%x avail=%x ReqSize=%x", status.state, status.avail, ulReqSize));
1118 return UNIXToOSSError(iRet);
1119 }
1120 iRet = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1121 rprintf(("Xrun restarted: state=%x avail=%x ReqSize=%x", status.state, status.avail, ulReqSize));
1122 if (iRet < 0) return UNIXToOSSError(iRet);
1123 }
1124
1125 iRet = pHandle->file.f_op->write(&pHandle->file, (char *)ulBuffer, ulSize, &pHandle->file.f_pos);
1126
1127 if (iRet != ulSize) rprintf(("WaveAddBuffer: ReqSize=%x Size=%x iRet=%x", ulReqSize, ulSize, iRet));
1128
1129 if (iRet < 0) return UNIXToOSSError(iRet);
1130 ulTransferred = iRet;
1131#else
1132 //first check how much room is left in the circular dma buffer
1133 //this is done to make sure we don't block inside ALSA while trying to write
1134 //more data than fits in the internal dma buffer.
1135 ulSize = min(ulReqSize, samples_to_bytes(status.avail));
1136
1137 //printk("OSS32_WaveAddBuffer N:%d hw=%x app=%x avail=%x req size=%x size=%x",
1138 // CountWv, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), ulSize, ulReqSize);
1139
1140 if (ulSize == 0) {
1141 rprintf(("OSS32_WaveAddBuffer: no room left in hardware buffer!!"));
1142 rprintf(("state=%x avail=%x SizeReq=%x", status.state, status.avail, ulReqSize));
1143 *pulTransferred = 0;
1144 return OSSERR_BUFFER_FULL;
1145 }
1146
1147 rprintf(("WaveAddBuffer: ReqSize=%x Size=%x", ulReqSize, ulSize));
1148
1149 // size should be aligned to channels number * samplesize //PS+++ what is it and why?!?!?!
1150 ulJ = 10; // 10 try if error
1151 iRet = -11;
1152 while (ulSize && ulJ && iRet) {
1153 for (ulI=0; ulI < 1000; ulI++) {
1154 iRet1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1155 // If here any state and have free buffer to any byte
1156 if ((status.state != SNDRV_PCM_STATE_XRUN ) && samples_to_bytes(status.avail) ) break;
1157 if (status.state == SNDRV_PCM_STATE_XRUN) {
1158 rprintf(("Internal Error: Xrun"));
1159 }
1160 if (ulI > 998) {
1161 rprintf(("timeout state=%x avail=%d hw=%d app=%d",status.state,samples_to_bytes(status.avail),samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1162 iRet1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1163 }
1164 }
1165
1166 if (iRet1 < 0) {
1167 rprintf(("iRet1=%i trans=%x ReqSize=%x Size=%x", iRet1, ulTransferred, ulReqSize, ulSize));
1168 break; // We have any global error, don't try more
1169 }
1170
1171 iRet = pHandle->file.f_op->write(&pHandle->file, (char *)ulBuffer, ulSize, &pHandle->file.f_pos);
1172 rprintf(("J=%x iRet=%x", ulJ, iRet));
1173
1174 if (iRet < 0 ) { // We have any error, don't try more
1175 ulJ--;
1176 rprintf(("Error ret=%i ret1=%i trans=%x ReqSize=%x Size=%x", iRet, iRet1, ulTransferred, ulReqSize, ulSize));
1177 if ( iRet != -11 ) {
1178 rprintf(("Doing prepare"));
1179 iRet1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1180 }
1181 continue;
1182 }
1183 if (iRet == 0) {
1184 continue;
1185 }
1186 ulTransferred += iRet;
1187 // printk("written: now: %d, trans: %d need %d tot:%d", iRet, ulTransferred, ulReqSize,ulSize);
1188 ulBuffer += iRet;
1189 if (ulSize > iRet) ulSize -= iRet;
1190 else ulSize = 0;
1191 }
1192#endif
1193 break;
1194 case SNDRV_MINOR_PCM_CAPTURE:
1195 //printk("OSS32_WaveAddBuffer N:%d state=%x hw=%x app=%x avail=%x size=%x",
1196 // CountWv, status.state, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), ulReqSize);
1197// Need to handle overrun condition when reading
1198// if (status.state == SNDRV_PCM_STATE_XRUN) {
1199// *pulTransferred = 0;
1200// return OSSERR_BUFFER_FULL;
1201// }
1202 iRet = pHandle->file.f_op->read(&pHandle->file, (char *)ulBuffer, ulReqSize, &pHandle->file.f_pos);
1203 if (iRet < 0) {
1204 *pulTransferred = 0;
1205 return OSSERR_BUFFER_FULL;
1206 }
1207 ulTransferred = iRet;
1208 break;
1209 default:
1210 DebugInt3();
1211 return OSSERR_INVALID_PARAMETER;
1212 }
1213
1214 total += ulTransferred;
1215 *pulTransferred = ulTransferred;
1216 prev_size = ulTransferred;
1217// if (*pulTransferred < ulSize)
1218// {
1219// printk("warning: ulTransferred [%d] less than requested [%d]", *pulTransferred, ulSize);
1220// iRet1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1221// }
1222
1223 return OSSERR_SUCCESS;
1224}
1225//******************************************************************************
1226//******************************************************************************
1227OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1228{
1229 soundhandle *pHandle = (soundhandle *)streamid;
1230 struct snd_pcm_status status;
1231 int ret;
1232
1233 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1234 DebugInt3();
1235 return OSSERR_INVALID_STREAMID;
1236 }
1237 if(pPosition == NULL) {
1238 DebugInt3();
1239 return OSSERR_INVALID_PARAMETER;
1240 }
1241
1242 //set operation to non-blocking
1243 pHandle->file.f_flags = O_NONBLOCK;
1244
1245 //Get the status of the stream
1246 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1247
1248 if(ret) {
1249 DebugInt3();
1250 return UNIXToOSSError(ret);
1251 }
1252
1253 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1254 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1255 return OSSERR_SUCCESS;
1256}
1257//******************************************************************************
1258//******************************************************************************
1259OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1260{
1261 soundhandle *pHandle = (soundhandle *)streamid;
1262 struct snd_pcm_status status;
1263 int ret;
1264
1265 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1266 DebugInt3();
1267 return OSSERR_INVALID_STREAMID;
1268 }
1269 if(pBytesAvail == NULL) {
1270 DebugInt3();
1271 return OSSERR_INVALID_PARAMETER;
1272 }
1273
1274 //set operation to non-blocking
1275 pHandle->file.f_flags = O_NONBLOCK;
1276
1277 //Get the nr of bytes left in the audio buffer
1278 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1279
1280 if(ret) {
1281 DebugInt3();
1282 return UNIXToOSSError(ret);
1283 }
1284 ret = samples_to_bytes(status.avail);
1285
1286 *pBytesAvail = ret;
1287 return OSSERR_SUCCESS;
1288}
1289//******************************************************************************
1290//******************************************************************************
1291OSSRET OSS32_WaveGetHwPtr(ULONG streamid, ULONG *pPosition)
1292{
1293 soundhandle *pHandle = (soundhandle *)streamid;
1294 struct snd_pcm_status status;
1295 int ret;
1296
1297 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1298 DebugInt3();
1299 return OSSERR_INVALID_STREAMID;
1300 }
1301 if(pPosition == NULL) {
1302 DebugInt3();
1303 return OSSERR_INVALID_PARAMETER;
1304 }
1305
1306 //set operation to non-blocking
1307 pHandle->file.f_flags = O_NONBLOCK;
1308
1309 //Get the status of the stream
1310 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1311
1312 if(ret) {
1313 DebugInt3();
1314 return UNIXToOSSError(ret);
1315 }
1316
1317 *pPosition = samples_to_bytes(status.appl_ptr); //return new hardware position
1318 return OSSERR_SUCCESS;
1319}
1320//******************************************************************************
1321//******************************************************************************
1322OSSRET OSS32_WaveGetStatus(ULONG streamid, ULONG *pStatus)
1323{
1324 struct snd_pcm_status status;
1325 soundhandle *pHandle = (soundhandle *)streamid;
1326 int ret;
1327
1328 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1329 DebugInt3();
1330 return OSSERR_INVALID_STREAMID;
1331 }
1332 if(pStatus == NULL) {
1333 DebugInt3();
1334 return OSSERR_INVALID_PARAMETER;
1335 }
1336
1337 //set operation to non-blocking
1338 pHandle->file.f_flags = O_NONBLOCK;
1339
1340 //Get the status of the stream
1341 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1342 if(ret) return UNIXToOSSError(ret);
1343 *pStatus = status.state;
1344
1345 return OSSERR_SUCCESS;
1346}
1347//******************************************************************************
1348//******************************************************************************
1349OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1350{
1351 soundhandle *pHandle = (soundhandle *)streamid;
1352 int ret;
1353 int leftvol, rightvol;
1354 struct snd_pcm_volume pcm_volume;
1355
1356 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1357 DebugInt3();
1358 return OSSERR_INVALID_STREAMID;
1359 }
1360 //set operation to non-blocking
1361 pHandle->file.f_flags = O_NONBLOCK;
1362
1363 leftvol = GET_VOLUME_L(volume);
1364 rightvol = GET_VOLUME_R(volume);
1365
1366 pcm_volume.nrchannels = 4;
1367 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1368 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1369 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1370 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1371
1372 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1373 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1374 return UNIXToOSSError(ret);
1375}
1376//******************************************************************************
1377
Note: See TracBrowser for help on using the repository browser.