source: GPL/branches/uniaud32-2.1.x/lib32/sound.c@ 504

Last change on this file since 504 was 504, checked in by David Azarewicz, 15 years ago

Bring branch up-to-date with trunk
File size: 52.7 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 "soundoss.h"
40
41#undef samples_to_bytes
42#undef bytes_to_samples
43#define samples_to_bytes(a) ((a*pHandle->doublesamplesize)/2)
44#define bytes_to_samples(a) (pHandle->doublesamplesize ? ((a*2)/pHandle->doublesamplesize) : a)
45int GetMaxChannels(ULONG deviceid, int type);
46
47struct file_operations oss_devices[OSS32_MAX_DEVICES] = {0};
48struct file_operations *alsa_fops = NULL;
49int per_bytes = 0;
50int prev_size = 0;
51int pcm_device = 0;
52int total = 0;
53// int pcm_instances = 0; //PS+++ !!!!!!! what is it!!!! see pcm.lib
54
55OpenedHandles opened_handles[8 * 256] = {0};
56
57//OSS32 to ALSA datatype conversion table
58static int OSSToALSADataType[OSS32_PCM_MAX_FORMATS] = {
59/* OSS32_PCM_FORMAT_S8 */ SNDRV_PCM_FORMAT_S8, //signed 8 bits sample
60/* OSS32_PCM_FORMAT_U8 */ SNDRV_PCM_FORMAT_U8, //unsigned 8 bits sample
61/* OSS32_PCM_FORMAT_S16_LE */ SNDRV_PCM_FORMAT_S16_LE, //signed 16 bits sample (little endian/Intel)
62/* OSS32_PCM_FORMAT_S16_BE */ SNDRV_PCM_FORMAT_S16_BE, //signed 16 bits sample (big endian/Motorola)
63/* OSS32_PCM_FORMAT_U16_LE */ SNDRV_PCM_FORMAT_U16_LE, //unsigned 16 bits sample (little endian/Intel)
64/* OSS32_PCM_FORMAT_U16_BE */ SNDRV_PCM_FORMAT_U16_BE, //unsigned 16 bits sample (big endian/Motorola)
65/* OSS32_PCM_FORMAT_S24_LE */ SNDRV_PCM_FORMAT_S24_LE, //signed 24 bits sample (little endian/Intel)
66/* OSS32_PCM_FORMAT_S24_BE */ SNDRV_PCM_FORMAT_S24_BE, //signed 24 bits sample (big endian/Motorola)
67/* OSS32_PCM_FORMAT_U24_LE */ SNDRV_PCM_FORMAT_U24_LE, //unsigned 24 bits sample (little endian/Intel)
68/* OSS32_PCM_FORMAT_U24_BE */ SNDRV_PCM_FORMAT_U24_BE, //unsigned 24 bits sample (big endian/Motorola)
69/* OSS32_PCM_FORMAT_S32_LE */ SNDRV_PCM_FORMAT_S32_LE, //signed 32 bits sample (little endian/Intel)
70/* OSS32_PCM_FORMAT_S32_BE */ SNDRV_PCM_FORMAT_S32_BE, //signed 32 bits sample (big endian/Motorola)
71/* OSS32_PCM_FORMAT_U32_LE */ SNDRV_PCM_FORMAT_U32_LE, //unsigned 32 bits sample (little endian/Intel)
72/* OSS32_PCM_FORMAT_U32_BE */ SNDRV_PCM_FORMAT_U32_BE, //unsigned 32 bits sample (big endian/Motorola)
73/* OSS32_PCM_FORMAT_MULAW */ SNDRV_PCM_FORMAT_MU_LAW, //8 bps (compressed 16 bits sample)
74/* OSS32_PCM_FORMAT_ALAW */ SNDRV_PCM_FORMAT_A_LAW, //8 bps (compressed 16 bits sample)
75/* OSS32_PCM_FORMAT_ADPCM */ SNDRV_PCM_FORMAT_IMA_ADPCM, //4 bps (compressed 16 bits sample)
76/* OSS32_PCM_FORMAT_MPEG */ SNDRV_PCM_FORMAT_MPEG, //AC3?
77};
78
79//******************************************************************************
80//******************************************************************************
81int register_chrdev(unsigned int version, const char *name, struct file_operations *fsop)
82{
83 if(!strcmp(name, "alsa")) {
84 alsa_fops = fsop;
85 }
86 return 0;
87}
88//******************************************************************************
89//******************************************************************************
90int unregister_chrdev(unsigned int version, const char *name)
91{
92 if(!strcmp(name, "alsa")) {
93 alsa_fops = NULL;
94 }
95 return 0;
96}
97//******************************************************************************
98//******************************************************************************
99int register_sound_special(struct file_operations *fops, int unit)
100{
101 if(fops == NULL) return -1;
102
103 memcpy(&oss_devices[OSS32_SPECIALID], fops, sizeof(struct file_operations));
104 return OSS32_SPECIALID;
105}
106//******************************************************************************
107//******************************************************************************
108int register_sound_mixer(struct file_operations *fops, int dev)
109{
110 if(fops == NULL) return -1;
111
112 memcpy(&oss_devices[OSS32_MIXERID], fops, sizeof(struct file_operations));
113 return OSS32_MIXERID;
114}
115//******************************************************************************
116//******************************************************************************
117int register_sound_midi(struct file_operations *fops, int dev)
118{
119 if(fops == NULL) return -1;
120
121 memcpy(&oss_devices[OSS32_MIDIID], fops, sizeof(struct file_operations));
122 return OSS32_MIDIID;
123}
124//******************************************************************************
125//******************************************************************************
126int register_sound_dsp(struct file_operations *fops, int dev)
127{
128 if(fops == NULL) return -1;
129
130 memcpy(&oss_devices[OSS32_DSPID], fops, sizeof(struct file_operations));
131 return OSS32_DSPID;
132}
133//******************************************************************************
134//******************************************************************************
135int register_sound_synth(struct file_operations *fops, int dev)
136{
137 if(fops == NULL) return -1;
138
139 memcpy(&oss_devices[OSS32_SYNTHID], fops, sizeof(struct file_operations));
140 return OSS32_SYNTHID;
141}
142//******************************************************************************
143//******************************************************************************
144void unregister_sound_special(int unit)
145{
146 memset(&oss_devices[OSS32_SPECIALID], 0, sizeof(struct file_operations));
147}
148//******************************************************************************
149//******************************************************************************
150void unregister_sound_mixer(int unit)
151{
152 memset(&oss_devices[OSS32_MIXERID], 0, sizeof(struct file_operations));
153}
154//******************************************************************************
155//******************************************************************************
156void unregister_sound_midi(int unit)
157{
158 memset(&oss_devices[OSS32_MIDIID], 0, sizeof(struct file_operations));
159}
160//******************************************************************************
161//******************************************************************************
162void unregister_sound_dsp(int unit)
163{
164 memset(&oss_devices[OSS32_DSPID], 0, sizeof(struct file_operations));
165}
166//******************************************************************************
167//******************************************************************************
168void unregister_sound_synth(int unit)
169{
170 memset(&oss_devices[OSS32_SYNTHID], 0, sizeof(struct file_operations));
171}
172//******************************************************************************
173//******************************************************************************
174OSSRET UNIXToOSSError(int unixerror)
175{
176 switch(unixerror) {
177 case 0:
178 return OSSERR_SUCCESS;
179 case -ENOMEM:
180 return OSSERR_OUT_OF_MEMORY;
181 case -ENODEV:
182 return OSSERR_NO_DEVICE_AVAILABLE;
183 case -ENOTTY:
184 case -EINVAL:
185 return OSSERR_INVALID_PARAMETER;
186 case -EAGAIN:
187 return OSSERR_AGAIN; //????
188 case -ENXIO:
189 return OSSERR_IO_ERROR;
190 case -EBUSY:
191 return OSSERR_BUSY;
192 case -EPERM:
193 return OSSERR_ACCESS_DENIED; //??
194 case -EPIPE:
195 case -EBADFD:
196 return OSSERR_ACCESS_DENIED; //??
197 default:
198 dprintf(("Unknown error %d", (unixerror > 0) ? unixerror : -unixerror));
199 return OSSERR_UNKNOWN;
200 }
201}
202//******************************************************************************
203//ALSA to OSS32 datatype conversion
204//******************************************************************************
205int ALSAToOSSDataType(ULONG ALSADataType)
206{
207 switch(ALSADataType)
208 {
209 case SNDRV_PCM_FORMAT_S8:
210 return OSS32_CAPS_PCM_FORMAT_S8; //signed 8 bits sample
211 case SNDRV_PCM_FORMAT_U8:
212 return OSS32_CAPS_PCM_FORMAT_U8; //unsigned 8 bits sample
213 case SNDRV_PCM_FORMAT_S16_LE:
214 return OSS32_CAPS_PCM_FORMAT_S16_LE; //signed 16 bits sample (little endian/Intel)
215 case SNDRV_PCM_FORMAT_S16_BE:
216 return OSS32_CAPS_PCM_FORMAT_S16_BE; //signed 16 bits sample (big endian/Motorola)
217 case SNDRV_PCM_FORMAT_U16_LE:
218 return OSS32_CAPS_PCM_FORMAT_U16_LE; //unsigned 16 bits sample (little endian/Intel)
219 case SNDRV_PCM_FORMAT_U16_BE:
220 return OSS32_CAPS_PCM_FORMAT_U16_BE; //unsigned 16 bits sample (big endian/Motorola)
221 case SNDRV_PCM_FORMAT_S24_LE:
222 return OSS32_CAPS_PCM_FORMAT_S24_LE; //signed 24 bits sample (little endian/Intel)
223 case SNDRV_PCM_FORMAT_S24_BE:
224 return OSS32_CAPS_PCM_FORMAT_S24_BE; //signed 24 bits sample (big endian/Motorola)
225 case SNDRV_PCM_FORMAT_U24_LE:
226 return OSS32_CAPS_PCM_FORMAT_U24_LE; //unsigned 24 bits sample (little endian/Intel)
227 case SNDRV_PCM_FORMAT_U24_BE:
228 return OSS32_CAPS_PCM_FORMAT_U24_BE; //unsigned 16 bits sample (big endian/Motorola)
229 case SNDRV_PCM_FORMAT_S32_LE:
230 return OSS32_CAPS_PCM_FORMAT_S32_LE; //signed 32 bits sample (little endian/Intel)
231 case SNDRV_PCM_FORMAT_S32_BE:
232 return OSS32_CAPS_PCM_FORMAT_S32_BE; //signed 32 bits sample (big endian/Motorola)
233 case SNDRV_PCM_FORMAT_U32_LE:
234 return OSS32_CAPS_PCM_FORMAT_U32_LE; //unsigned 32 bits sample (little endian/Intel)
235 case SNDRV_PCM_FORMAT_U32_BE:
236 return OSS32_CAPS_PCM_FORMAT_U32_BE; //unsigned 32 bits sample (big endian/Motorola)
237 case SNDRV_PCM_FORMAT_MU_LAW:
238 return OSS32_CAPS_PCM_FORMAT_MULAW; //8 bps (compressed 16 bits sample)
239 case SNDRV_PCM_FORMAT_A_LAW:
240 return OSS32_CAPS_PCM_FORMAT_ALAW; //8 bps (compressed 16 bits sample)
241 case SNDRV_PCM_FORMAT_IMA_ADPCM:
242 return OSS32_CAPS_PCM_FORMAT_ADPCM; //4 bps (compressed 16 bits sample)
243 case SNDRV_PCM_FORMAT_MPEG:
244 return OSS32_CAPS_PCM_FORMAT_MPEG; //AC3?
245 default:
246 DebugInt3();
247 return -1;
248 }
249}
250//******************************************************************************
251//******************************************************************************
252ULONG ALSAToOSSRateFlags(ULONG fuRates)
253{
254 ULONG fuOSSRates = 0;
255
256 char szMixerName[64];
257 char szDeviceName[128];
258 OSS32_QueryNames(OSS32_DEFAULT_DEVICE, szDeviceName,
259 sizeof(szDeviceName),szMixerName,
260 sizeof(szMixerName), TRUE);
261 if (strncmp(szDeviceName,"HDA",3) != 0){
262 /* non-HDA audio - support 5512 - 32000 Hz sample rates */
263 if(fuRates & SNDRV_PCM_RATE_5512) {
264 fuOSSRates |= OSS32_CAPS_PCM_RATE_5512;
265 }
266 if(fuRates & SNDRV_PCM_RATE_8000) {
267 fuOSSRates |= OSS32_CAPS_PCM_RATE_8000;
268 }
269 if(fuRates & SNDRV_PCM_RATE_11025) {
270 fuOSSRates |= OSS32_CAPS_PCM_RATE_11025;
271 }
272 if(fuRates & SNDRV_PCM_RATE_16000) {
273 fuOSSRates |= OSS32_CAPS_PCM_RATE_16000;
274 }
275 if(fuRates & SNDRV_PCM_RATE_22050) {
276 fuOSSRates |= OSS32_CAPS_PCM_RATE_22050;
277 }
278 if(fuRates & SNDRV_PCM_RATE_32000) {
279 fuOSSRates |= OSS32_CAPS_PCM_RATE_32000;
280 }
281 } else {
282 printk("HDA audio detected - don't support 5512 - 32000 Hz audio sample rates\n");
283 }
284 if(fuRates & SNDRV_PCM_RATE_44100) {
285 fuOSSRates |= OSS32_CAPS_PCM_RATE_44100;
286 }
287 if(fuRates & SNDRV_PCM_RATE_48000) {
288 fuOSSRates |= OSS32_CAPS_PCM_RATE_48000;
289 }
290#if 0
291 if(fuRates & SNDRV_PCM_RATE_64000) {
292 fuOSSRates |= OSS32_CAPS_PCM_RATE_64000;
293 }
294 if(fuRates & SNDRV_PCM_RATE_88200) {
295 fuOSSRates |= OSS32_CAPS_PCM_RATE_88200;
296 }
297 if(fuRates & SNDRV_PCM_RATE_96000) {
298 fuOSSRates |= OSS32_CAPS_PCM_RATE_96000;
299 }
300 if(fuRates & SNDRV_PCM_RATE_176400) {
301 fuOSSRates |= OSS32_CAPS_PCM_RATE_176400;
302 }
303 if(fuRates & SNDRV_PCM_RATE_192000) {
304 fuOSSRates |= OSS32_CAPS_PCM_RATE_192000;
305 }
306#endif
307 if(fuRates & SNDRV_PCM_RATE_CONTINUOUS) {
308 fuOSSRates |= OSS32_CAPS_PCM_RATE_CONTINUOUS;
309 }
310
311 //TODO:
312 if(fuRates & SNDRV_PCM_RATE_KNOT) {
313 DebugInt3();
314 }
315//#define OSS32_CAPS_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */
316
317 return fuOSSRates;
318}
319//******************************************************************************
320//******************************************************************************
321OSSRET OSS32_QueryDevCaps(ULONG deviceid, POSS32_DEVCAPS pDevCaps)
322{
323 OSSSTREAMID streamid = 0;
324 soundhandle *pHandle;
325 struct snd_pcm_info *pcminfo = NULL;
326 struct snd_pcm_hw_params *params;
327 int ret, fmt, i;
328 ULONG format_mask;
329 struct snd_mask *mask;
330 int max_ch;
331
332#ifdef DEBUG
333 dprintf(("OSS32_QueryDevCaps"));
334#endif
335// max_ch = GetMaxChannels(deviceid, OSS32_CAPS_WAVE_PLAYBACK);
336
337 //these structures are too big to put on the stack
338 pcminfo = (struct snd_pcm_info *)kmalloc(sizeof(struct snd_pcm_info)+sizeof(struct snd_pcm_hw_params), GFP_KERNEL);
339 if(pcminfo == NULL) {
340 DebugInt3();
341 printk("OSS32_QueryDevCaps: out of memory\n");
342 return OSSERR_OUT_OF_MEMORY;
343 }
344 params = (struct snd_pcm_hw_params *)(pcminfo+1);
345
346 printk("Number of cards: %i",nrCardsDetected);
347 printk("dev id: %i",deviceid);
348 pDevCaps->nrDevices = 1;//nrCardsDetected;
349// pDevCaps->nrDevices = nrCardsDetected;
350 pDevCaps->ulCaps = OSS32_CAPS_WAVE_PLAYBACK | OSS32_CAPS_WAVE_CAPTURE;
351
352 //query wave in & out caps
353 for(i=0;i<2;i++)
354 {
355 PWAVE_CAPS pWaveCaps = (i == 0) ? &pDevCaps->waveOutCaps : &pDevCaps->waveInCaps;
356
357 ret = OSS32_WaveOpen(deviceid, (i == 0) ? OSS32_STREAM_WAVEOUT : OSS32_STREAM_WAVEIN, &streamid, 0, 0);
358 if(ret != OSSERR_SUCCESS)
359 {
360 printk("OSS32_QueryDevCaps: wave open error %i\n", ret);
361 DebugInt3();
362 goto fail;
363 }
364 pHandle = (soundhandle *)streamid;
365 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
366 printk("OSS32_QueryDevCaps: invalid stream id \n");
367 ret = OSSERR_INVALID_STREAMID;
368 goto fail;
369 }
370 //set operation to non-blocking
371 pHandle->file.f_flags = O_NONBLOCK;
372
373 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_INFO, (ULONG)pcminfo);
374 if(ret != 0) {
375 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_INFO error %i\n", ret);
376 ret = UNIXToOSSError(ret);
377 goto fail;
378 }
379 if(i == 0) {//only need to do this once
380 if(pcminfo->name[0]) {
381 strncpy(pDevCaps->szDeviceName, pcminfo->name, sizeof(pDevCaps->szDeviceName));
382 }
383 else strncpy(pDevCaps->szDeviceName, pcminfo->id, sizeof(pDevCaps->szDeviceName));
384 }
385 printk("Device name: %s", pDevCaps->szDeviceName);
386 pWaveCaps->nrStreams = pcminfo->subdevices_count;
387
388 //get all hardware parameters
389 _snd_pcm_hw_params_any(params);
390 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)params);
391 if(ret != 0) {
392 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_HW_REFINE error %i\n", ret);
393 ret = UNIXToOSSError(ret);
394 goto fail;
395 }
396
397 pWaveCaps->ulMinChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min;
398 pWaveCaps->ulMaxChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;
399 pWaveCaps->ulChanFlags = 0;
400 if(pWaveCaps->ulMinChannels == 1) {
401 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_MONO;
402 }
403 if(pWaveCaps->ulMaxChannels >= 2) {
404 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_STEREO;
405 }
406 if(pWaveCaps->ulMaxChannels >= 4) {
407 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_QUAD;
408 }
409 if(pWaveCaps->ulMaxChannels >= 6) {
410 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_5_1;
411 }
412
413 pWaveCaps->ulMinRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min;
414 pWaveCaps->ulMaxRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max;
415
416 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_RATE_MASK);
417
418 pWaveCaps->ulRateFlags = mask->bits[0];
419
420 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
421
422 pWaveCaps->ulDataFormats = 0;
423
424 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
425 format_mask = mask->bits[0];
426 for(fmt=0;fmt<32;fmt++)
427 {
428 if(format_mask & (1 << fmt))
429 {
430 int f = ALSAToOSSDataType(fmt);
431 if (f >= 0)
432 pWaveCaps->ulDataFormats |= f;
433 }
434 }
435
436 OSS32_WaveClose(streamid);
437 streamid = 0;
438
439 }
440
441 //Check support for MPU401, FM & Wavetable MIDI
442 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
443 {
444 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
445 OSS32_MidiClose(streamid);
446 streamid = 0;
447 }
448 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
449 {
450 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
451 OSS32_MidiClose(streamid);
452 streamid = 0;
453 }
454 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
455 {
456 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
457 OSS32_MidiClose(streamid);
458 streamid = 0;
459 }
460 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
461 {
462 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
463 OSS32_MidiClose(streamid);
464 streamid = 0;
465 }
466
467 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
468 DebugInt3();
469 printk("OSS32_QueryDevCaps: OSS32_MixQueryName error\n");
470 goto fail;
471 }
472 printk("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName);
473 kfree(pcminfo);
474 streamid = 0;
475
476
477 return OSSERR_SUCCESS;
478
479fail:
480 printk("OSS32_QueryDevCaps failed\n");
481 DebugInt3();
482 if(streamid) OSS32_WaveClose(streamid);
483 if(pcminfo) kfree(pcminfo);
484
485 return ret;
486}
487//******************************************************************************
488//******************************************************************************
489OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
490{
491 soundhandle *pHandle;
492 int ret,i;
493
494 if (pStreamId)
495 *pStreamId = 0;
496 else
497 {
498 printk("ERROR: invalid stream id pointer passed\n");
499 return OSSERR_OUT_OF_MEMORY;
500 }
501
502 if(alsa_fops == NULL) {
503 DebugInt3();
504#ifdef DEBUG
505 dprintf(("OSS32_WaveOpen: no devices"));
506#endif
507 printk("OSS32_WaveOpen: no devices\n");
508
509 return OSSERR_NO_DEVICE_AVAILABLE;
510 }
511
512// printk("dev id: %i\n",deviceid);
513
514 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
515 if(pHandle == NULL) {
516 DebugInt3();
517 printk("OSS32_WaveOpen: out of memory\n");
518 return OSSERR_OUT_OF_MEMORY;
519 }
520 memset(pHandle, 0, sizeof(soundhandle));
521
522 //set operation to non-blocking
523 pHandle->file.f_flags = O_NONBLOCK;
524
525 //setup pointers in file structure (used internally by ALSA)
526 pHandle->file.f_dentry = &pHandle->d_entry;
527 pHandle->file.f_dentry->d_inode = &pHandle->inode;
528
529 switch(streamtype) {
530 case OSS32_STREAM_WAVEOUT:
531 pHandle->file.f_mode = FMODE_WRITE;
532 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
533 break;
534 case OSS32_STREAM_WAVEIN:
535 pHandle->file.f_mode = FMODE_READ;
536 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
537 break;
538 default:
539 DebugInt3();
540 kfree(pHandle);
541 printk("OSS32_WaveOpen: invalid parameter\n");
542 return OSSERR_INVALID_PARAMETER;
543 }
544
545 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
546 printk("OSS32_WaveOpen. ret: %i\n", ret);
547 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
548 if (ret == -16)
549 {
550 for (i=0; i < 8*256; i++)
551 {
552 if (opened_handles[i].handle != 0)
553 {
554 ret = 0;
555 if (pStreamId)
556 *pStreamId = (ULONG)opened_handles[i].handle;
557 opened_handles[i].reuse = 1; /* try to reuse */
558 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
559 {
560 if (!opened_handles[i].reuse)
561 {
562 //opened_handles[i].handle = 0;
563 kfree(opened_handles[i].handle); //free handle data
564 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
565 printk("OSS32_WaveOpen. Reopen ret: %i\n", ret);
566 }
567 else
568 {
569 kfree(pHandle);
570 pHandle = opened_handles[i].handle;
571 }
572 break;
573 }
574 }
575 }
576 }
577 else if (ret == 0)
578 {
579 for (i=0; i < 8*256; i++)
580 {
581 if (opened_handles[i].handle == 0)
582 {
583 opened_handles[i].handle = pHandle;
584 opened_handles[i].FileId = fileid;
585 break;
586 }
587 }
588 }
589
590 if(ret) {
591 kfree(pHandle);
592 DebugInt3();
593 printk("OSS32_WaveOpen: open error: %i\n",ret);
594 return UNIXToOSSError(ret);
595 }
596 pHandle->magic = MAGIC_WAVE_ALSA32;
597 if (pStreamId)
598 *pStreamId = (ULONG)pHandle;
599 // filling opened handles table
600 printk("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle);
601 return OSSERR_SUCCESS;
602}
603//******************************************************************************
604//******************************************************************************
605
606OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
607{
608 soundhandle *pHandle = (soundhandle *)streamid;
609 int ret = 0, i;
610
611 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
612 DebugInt3();
613 printk("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle);
614 return OSSERR_INVALID_STREAMID;
615 }
616
617 //set operation to non-blocking
618 pHandle->file.f_flags = O_NONBLOCK;
619
620 for (i=0; i < 8*256; i++)
621 {
622 if (opened_handles[i].handle == pHandle)
623 {
624 printk("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse);
625 if (!opened_handles[i].reuse)
626 {
627 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
628 opened_handles[i].handle = 0;
629 kfree(pHandle); //free handle data
630 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
631 } else
632 {
633 /* prepare for reuse */
634 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_RESET, 0);
635 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
636 }
637 break;
638 }
639 }
640
641 if (i >= 8*256)
642 {
643 //all already closed
644 printk("phandle %x not found\n", pHandle);
645// return OSSERR_SUCCESS;
646 }
647
648
649 if(ret) {
650 printk("Error closing wave. rc = %i\n", ret);
651 DebugInt3();
652 return UNIXToOSSError(ret);
653 }
654 printk("OSS32_WaveClose. streamid %X\n",(ULONG)pHandle);
655 return OSSERR_SUCCESS;
656}
657//******************************************************************************
658//******************************************************************************
659OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
660{
661 soundhandle *pHandle = (soundhandle *)streamid;
662 int ret;
663
664#ifdef DEBUG
665 dprintf(("OSS32_WavePrepare"));
666#endif
667
668 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
669 DebugInt3();
670//#ifdef DEBUG
671 printk("vladest: OSS32_WavePrepare: invalid streamID\n");
672//#endif
673
674 return OSSERR_INVALID_STREAMID;
675 }
676 //set operation to non-blocking
677 pHandle->file.f_flags = O_NONBLOCK;
678
679 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
680 if (ret)
681 printk("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle);
682
683 return UNIXToOSSError(ret);;
684}
685//******************************************************************************
686//******************************************************************************
687OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
688{
689 soundhandle *pHandle = (soundhandle *)streamid;
690 int ret;
691
692 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
693 DebugInt3();
694 return OSSERR_INVALID_STREAMID;
695 }
696 //set operation to non-blocking
697 pHandle->file.f_flags = O_NONBLOCK;
698 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
699 if (ret)
700 printk("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle);
701
702 return UNIXToOSSError(ret);;
703}
704//******************************************************************************
705//******************************************************************************
706OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
707{
708 soundhandle *pHandle = (soundhandle *)streamid;
709 int ret;
710
711 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
712 DebugInt3();
713 return OSSERR_INVALID_STREAMID;
714 }
715 //set operation to non-blocking
716 pHandle->file.f_flags = O_NONBLOCK;
717
718 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
719 if (ret)
720 printk("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle);
721
722 return UNIXToOSSError(ret);;
723}
724//******************************************************************************
725//******************************************************************************
726OSSRET OSS32_WavePause(OSSSTREAMID streamid)
727{
728 soundhandle *pHandle = (soundhandle *)streamid;
729 int ret;
730
731 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
732 DebugInt3();
733 return OSSERR_INVALID_STREAMID;
734 }
735 //set operation to non-blocking
736 pHandle->file.f_flags = O_NONBLOCK;
737
738 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
739 if (ret)
740 printk("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle);
741
742 return UNIXToOSSError(ret);;
743}
744//******************************************************************************
745//******************************************************************************
746OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
747{
748 soundhandle *pHandle = (soundhandle *)streamid;
749 int ret;
750
751 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
752 DebugInt3();
753 return OSSERR_INVALID_STREAMID;
754 }
755 //set operation to non-blocking
756 pHandle->file.f_flags = O_NONBLOCK;
757
758 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
759 if (ret)
760 printk("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle);
761
762 return UNIXToOSSError(ret);;
763}
764
765static unsigned rates[] = {
766 /* ATTENTION: these values depend on the definition in pcm.h! */
767 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
768 64000, 88200, 96000, 176400, 192000
769};
770
771//******************************************************************************
772//******************************************************************************
773OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
774{
775 soundhandle *pHandle = (soundhandle *)streamid;
776 struct snd_pcm_hw_params params;
777 struct snd_pcm_sw_params swparams;
778 struct snd_pcm_status status;
779
780 int ret, nrperiods, minnrperiods, maxnrperiods, samplesize,i;
781 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
782 ULONG periodbytes, minperiodbytes, maxperiodbytes;
783 BOOL fTryAgain = FALSE;
784 ULONG ulMinRate, ulMaxRate;
785
786 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
787
788 DebugInt3();
789 return OSSERR_INVALID_STREAMID;
790 }
791 if(pHwParams == NULL) {
792
793 DebugInt3();
794 return OSSERR_INVALID_PARAMETER;
795 }
796 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
797
798 DebugInt3();
799 return OSSERR_INVALID_PARAMETER;
800 }
801 if ((int)pHwParams->ulNumChannels <= 0) {
802 printk("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels);
803 DebugInt3();
804 return OSSERR_INVALID_PARAMETER;
805 }
806tryagain:
807 //set operation to non-blocking
808 pHandle->file.f_flags = O_NONBLOCK;
809
810 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
811 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
812 pHandle->doublesamplesize = samplesize * 2;
813 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
814 periodbytes = pHwParams->ulPeriodSize;
815 periodsize = bytes_to_samples(periodbytes);
816 // checking number of channels
817
818 dprintf(("channels: %ld, period size: %lx",pHwParams->ulNumChannels, periodbytes));
819
820 _snd_pcm_hw_params_any(&params);
821 do {
822 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
823 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
824 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
825 pHwParams->ulNumChannels, 0);
826 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
827 if (ret == 0) break;
828 pHwParams->ulNumChannels--;
829 } while(ret < 0 && pHwParams->ulNumChannels > 1);
830
831 dprintf(("channels selected: %d",pHwParams->ulNumChannels));
832
833 //get all hardware parameters
834 _snd_pcm_hw_params_any(&params);
835 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
836 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
837 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
838 OSSToALSADataType[pHwParams->ulDataType], 0);
839 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
840 if(ret != 0) {
841 dprintf(("invalid format %lx\n", OSSToALSADataType[pHwParams->ulDataType]));
842 return UNIXToOSSError(ret);
843 }
844 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
845 pHwParams->ulBitsPerSample, 0);
846 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
847 if(ret != 0) {
848 dprintf(("invalid number of sample bits %d\n", pHwParams->ulBitsPerSample));
849 return UNIXToOSSError(ret);
850 }
851 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
852 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
853 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
854 if(ret != 0) {
855 dprintf(("invalid number of frame bits %d\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels));
856 return UNIXToOSSError(ret);
857 }
858
859 //_snd_pcm_hw_params_any(&params);
860 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
861 pHwParams->ulBitsPerSample, 0);
862 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
863 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
864 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
865 OSSToALSADataType[pHwParams->ulDataType], 0);
866 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
867 pHwParams->ulNumChannels, 0);
868 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
869 pHwParams->ulSampleRate, 0);
870 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
871 if(ret != 0) {
872 dprintf(("32_WSetHwPms (first pass) error %d bps:%d fmt: %d ch: %d sr: %d\n",
873 ret,
874 pHwParams->ulBitsPerSample,
875 OSSToALSADataType[pHwParams->ulDataType],
876 pHwParams->ulNumChannels,
877 pHwParams->ulSampleRate));
878 //printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
879 // printk("will set to nearest\n");
880 _snd_pcm_hw_params_any(&params);
881 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
882 {
883 if (pHwParams->ulSampleRate >= rates[i] &&
884 pHwParams->ulSampleRate <= rates[i+1])
885 {
886 pHwParams->ulSampleRate = rates[i];
887 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
888 pHwParams->ulSampleRate, 0);
889 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
890 if(ret == 0)
891 {
892 _snd_pcm_hw_params_any(&params);
893 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
894 pHwParams->ulBitsPerSample, 0);
895 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
896 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
897 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
898 OSSToALSADataType[pHwParams->ulDataType], 0);
899 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
900 pHwParams->ulNumChannels, 0);
901 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
902 pHwParams->ulSampleRate, 0);
903 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
904 goto __next;
905 }
906 }
907 }
908 DebugInt3();
909 return UNIXToOSSError(ret);
910 }
911 __next:
912
913 //check period size against lower and upper boundaries
914 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
915 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
916 if(periodbytes < minperiodbytes) {
917 periodbytes = minperiodbytes;
918 }
919 else
920 if(periodbytes > maxperiodbytes) {
921 periodbytes = maxperiodbytes;
922 }
923
924 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
925 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
926 if(periodsize < minperiodsize) {
927 periodsize = minperiodsize;
928 }
929 else
930 if(periodsize > maxperiodsize) {
931 periodsize = maxperiodsize;
932 }
933
934 if(samples_to_bytes(periodsize) < periodbytes) {
935 periodbytes = samples_to_bytes(periodsize);
936 }
937 else
938 if(bytes_to_samples(periodbytes) < periodsize) {
939 periodsize = bytes_to_samples(periodbytes);
940 }
941
942 //make sure period size is a whole fraction of the buffer size
943 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
944 if(periodsize) {
945 nrperiods = bufsize/periodbytes;
946 }
947 else {
948 dprintf(("32_WSHwPrms error. Invalid periodsize (=0). closing file\n"));
949 DebugInt3();
950 return OSSERR_INVALID_PARAMETER;
951 }
952 //check nr of periods against lower and upper boundaries
953 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
954 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
955 if(nrperiods < minnrperiods) {
956 nrperiods = minnrperiods;
957 }
958 else
959 if(nrperiods > maxnrperiods) {
960 nrperiods = maxnrperiods;
961 }
962 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
963 //so we make sure it's an even number.
964 if(nrperiods == 1) {
965 dprintf(("32_WSHwPrms error. Invalid Num periods(=1). closing file\n"));
966 DebugInt3();
967 return OSSERR_INVALID_PARAMETER;
968 }
969 nrperiods &= ~1;
970
971 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
972 //period size and buffer size
973
974 _snd_pcm_hw_params_any(&params);
975 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
976 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
977 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
978 pHwParams->ulBitsPerSample, 0);
979 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
980 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
981 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
982 OSSToALSADataType[pHwParams->ulDataType], 0);
983 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
984 pHwParams->ulNumChannels, 0);
985 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
986 pHwParams->ulSampleRate, 0);
987 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
988 periodsize, 0);
989 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
990 periodbytes, 0);
991 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
992 nrperiods, 0);
993 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
994 periodsize*nrperiods, 0);
995 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
996 periodbytes*nrperiods, 0);
997
998
999 dprintf(("HWP: SR rate %ld, BPS %ld, CH %ld, PRSZ %lx, periods %lx",
1000 pHwParams->ulSampleRate, pHwParams->ulBitsPerSample, pHwParams->ulNumChannels, periodsize, nrperiods));
1001
1002 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
1003 if (ret == -77 && fTryAgain == FALSE)
1004 {
1005 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1006 fTryAgain = TRUE;
1007 dprintf((" Error -77 from first IOCTL HW Parms"));
1008 goto tryagain;
1009 }
1010
1011 if(ret) {
1012 if(fTryAgain == FALSE) {
1013 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
1014 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1015 dprintf(("Period size min=%lx max=%lx", minperiodsize, maxperiodsize));
1016 if(minperiodsize > maxperiodsize) {
1017 //ALSA doesn't like the period size; try suggested one
1018 periodsize = maxperiodsize;
1019 periodbytes = samples_to_bytes(periodsize);
1020 dprintf((" Peroid size error IOCTL HW Parms"));
1021 fTryAgain = TRUE;
1022 goto tryagain;
1023 }
1024 }
1025 dprintf(("Error %ld second time.. Bailing", ret));
1026 return UNIXToOSSError(ret);
1027 }
1028
1029 //set silence threshold (all sizes in frames) (only needed for playback)
1030 if(pHandle->file.f_mode == FMODE_WRITE)
1031 {
1032 swparams.avail_min = periodsize;
1033 swparams.period_step = 1;
1034 if(nrperiods <= 2) {
1035 swparams.silence_size = (periodsize/2);
1036 }
1037 else {
1038 swparams.silence_size = periodsize;
1039 }
1040 swparams.silence_threshold = swparams.silence_size;
1041 swparams.sleep_min = 0;
1042 swparams.start_threshold = 1;
1043 swparams.stop_threshold = periodsize*nrperiods;
1044 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1045 swparams.xfer_align = periodsize;
1046
1047 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1048 }
1049
1050 total = 0;
1051 per_bytes = periodbytes;
1052 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1053 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1054 (status.state != SNDRV_PCM_STATE_SETUP) &&
1055 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1056 (status.state != SNDRV_PCM_STATE_DRAINING))) {
1057 dprintf(("Device is not in proper state: %lx. Calling prepare\n", status.state));
1058 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1059 }
1060 return UNIXToOSSError(ret);
1061}
1062
1063
1064//******************************************************************************
1065ULONG CountWv=0;
1066ULONG LockAdd=0;
1067extern ULONG xchg( ULONG *p, ULONG x);
1068#pragma aux xchg = "xchg [esi],eax" parm [ESI][EAX] value [EAX];
1069//******************************************************************************
1070OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG buffer, ULONG size, ULONG *pTransferred, int pcm)
1071{
1072 soundhandle *pHandle = (soundhandle *)streamid;
1073 struct snd_pcm_status status;
1074 int ret, align, size1, ret1;
1075 LONG transferred;
1076 ULONG position,i,j;
1077 char *buf;
1078
1079// return OSSERR_SUCCESS;
1080
1081 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1082 DebugInt3();
1083 return OSSERR_INVALID_STREAMID;
1084 }
1085 if(pTransferred == NULL || buffer == 0 || size == 0) {
1086 DebugInt3();
1087 return OSSERR_INVALID_PARAMETER;
1088 }
1089
1090 //set operation to non-blocking
1091 pHandle->file.f_flags = O_NONBLOCK;
1092
1093 /* get the status of the circular dma buffer */
1094 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1095
1096 if(ret) {
1097 DebugInt3();
1098 return UNIXToOSSError(ret);
1099 }
1100
1101 CountWv++;
1102 transferred = 0;
1103 *pTransferred = 0;
1104 ret = -11;
1105 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1106 {
1107 case SNDRV_MINOR_PCM_PLAYBACK:
1108
1109 //first check how much room is left in the circular dma buffer
1110 //this is done to make sure we don't block inside ALSA while trying to write
1111 //more data than fits in the internal dma buffer.
1112 size1 = size;
1113 size = min(size, samples_to_bytes(status.avail));
1114
1115#ifdef DEBUG
1116 //printk("OSS32_WaveAddBuffer N:%d hw=%x app=%x avail=%x req size=%x size=%x\n",
1117 // CountWv, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), size1, size);
1118#endif
1119
1120 if (size == 0) {
1121#ifdef DEBUG_PK
1122 printk("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n");
1123 printk("state = %i\n",status.state);
1124 printk("avail = %i\n",status.avail);
1125 printk("size req = %i\n",size1);
1126#endif
1127 *pTransferred = 0;
1128 return OSSERR_BUFFER_FULL;
1129 }
1130
1131 // size should be aligned to channels number * samplesize //PS+++ what is it and why?!?!?!
1132 j = 10; // 10 try if error
1133 while (size && j && ret)
1134 {
1135 for (i=0; i < 1000; i++)
1136 {
1137 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1138 // If here any state and have free buffer to any byte
1139 if ((status.state != SNDRV_PCM_STATE_XRUN ) && samples_to_bytes(status.avail) ) break;
1140 if (i > 998) {
1141 // 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));
1142 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1143 }
1144 }
1145
1146 if (ret1 < 0) {
1147 // printk("Status Error ret1:%i trans: %i need %d tot:%d\n",ret1,transferred, size,size1);
1148 break; // We have any global error, don't try more
1149 }
1150
1151 ret = pHandle->file.f_op->write(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1152
1153 if (ret < 0 ) { // We have any error, don't try more
1154 j--;
1155 if ( ret != -11 )
1156 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1157 // printk("Error ret:%i ret1:%i trans: %d need %d tot:%d\n",ret,ret1,transferred, size,size1);
1158 continue;
1159 }
1160 if (ret == 0) continue;
1161 transferred += ret;
1162 // printk("written: now: %d, trans: %d need %d tot:%d\n", ret, transferred, size,size1);
1163 buffer += ret;
1164 if (size > ret)
1165 size -= ret;
1166 else
1167 size = 0;
1168 }
1169 break;
1170 case SNDRV_MINOR_PCM_CAPTURE:
1171#ifdef DEBUG
1172 //printk("OSS32_WaveAddBuffer N:%d state=%x hw=%x app=%x avail=%x size=%x\n",
1173 // CountWv, status.state, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), size);
1174#endif
1175// Need to handle overrun condition when reading
1176// if (status.state == SNDRV_PCM_STATE_XRUN) {
1177// *pTransferred = 0;
1178// return OSSERR_BUFFER_FULL;
1179// }
1180 transferred = pHandle->file.f_op->read(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1181 if (transferred < 0) {
1182 *pTransferred = 0;
1183 return OSSERR_BUFFER_FULL;
1184 }
1185 break;
1186 default:
1187 DebugInt3();
1188 return OSSERR_INVALID_PARAMETER;
1189 }
1190
1191 total += transferred;
1192 *pTransferred = transferred;
1193 prev_size = transferred;
1194// if (*pTransferred < size1)
1195// {
1196// printk("warning: transferred [%d] less than requested [%d]\n", *pTransferred, size1);
1197// ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1198// }
1199
1200 return OSSERR_SUCCESS;
1201}
1202//******************************************************************************
1203//******************************************************************************
1204OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1205{
1206 soundhandle *pHandle = (soundhandle *)streamid;
1207 struct snd_pcm_status status;
1208 int ret;
1209
1210 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1211 DebugInt3();
1212 return OSSERR_INVALID_STREAMID;
1213 }
1214 if(pPosition == NULL) {
1215 DebugInt3();
1216 return OSSERR_INVALID_PARAMETER;
1217 }
1218
1219 //set operation to non-blocking
1220 pHandle->file.f_flags = O_NONBLOCK;
1221
1222 //Get the status of the stream
1223 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1224
1225 if(ret) {
1226 DebugInt3();
1227 return UNIXToOSSError(ret);
1228 }
1229
1230 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1231 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1232 return OSSERR_SUCCESS;
1233}
1234//******************************************************************************
1235//******************************************************************************
1236OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1237{
1238 soundhandle *pHandle = (soundhandle *)streamid;
1239 struct snd_pcm_status status;
1240 int ret;
1241
1242 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1243 DebugInt3();
1244 return OSSERR_INVALID_STREAMID;
1245 }
1246 if(pBytesAvail == NULL) {
1247 DebugInt3();
1248 return OSSERR_INVALID_PARAMETER;
1249 }
1250
1251 //set operation to non-blocking
1252 pHandle->file.f_flags = O_NONBLOCK;
1253
1254 //Get the nr of bytes left in the audio buffer
1255 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1256
1257 if(ret) {
1258 DebugInt3();
1259 return UNIXToOSSError(ret);
1260 }
1261 ret = samples_to_bytes(status.avail);
1262
1263 *pBytesAvail = ret;
1264 return OSSERR_SUCCESS;
1265}
1266//******************************************************************************
1267//******************************************************************************
1268OSSRET OSS32_WaveGetHwPtr(ULONG streamid, ULONG *pPosition)
1269{
1270 soundhandle *pHandle = (soundhandle *)streamid;
1271 struct snd_pcm_status status;
1272 int ret;
1273
1274 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1275 DebugInt3();
1276 return OSSERR_INVALID_STREAMID;
1277 }
1278 if(pPosition == NULL) {
1279 DebugInt3();
1280 return OSSERR_INVALID_PARAMETER;
1281 }
1282
1283 //set operation to non-blocking
1284 pHandle->file.f_flags = O_NONBLOCK;
1285
1286 //Get the status of the stream
1287 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1288
1289 if(ret) {
1290 DebugInt3();
1291 return UNIXToOSSError(ret);
1292 }
1293
1294 *pPosition = samples_to_bytes(status.appl_ptr); //return new hardware position
1295 return OSSERR_SUCCESS;
1296}
1297//******************************************************************************
1298//******************************************************************************
1299OSSRET OSS32_WaveGetStatus(ULONG streamid, ULONG *pStatus)
1300{
1301 soundhandle *pHandle = (soundhandle *)streamid;
1302 struct snd_pcm_status status;
1303 int ret;
1304
1305 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1306 DebugInt3();
1307 return OSSERR_INVALID_STREAMID;
1308 }
1309 if(pStatus == NULL) {
1310 DebugInt3();
1311 return OSSERR_INVALID_PARAMETER;
1312 }
1313
1314 //set operation to non-blocking
1315 pHandle->file.f_flags = O_NONBLOCK;
1316
1317 //Get the status of the stream
1318 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1319
1320 if(ret) {
1321 DebugInt3();
1322 return UNIXToOSSError(ret);
1323 }
1324
1325 *pStatus = status.state;
1326 return OSSERR_SUCCESS;
1327}
1328//******************************************************************************
1329//******************************************************************************
1330OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1331{
1332 soundhandle *pHandle = (soundhandle *)streamid;
1333 int ret;
1334 int leftvol, rightvol;
1335 struct snd_pcm_volume pcm_volume;
1336
1337 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1338 DebugInt3();
1339 return OSSERR_INVALID_STREAMID;
1340 }
1341 //set operation to non-blocking
1342 pHandle->file.f_flags = O_NONBLOCK;
1343
1344 leftvol = GET_VOLUME_L(volume);
1345 rightvol = GET_VOLUME_R(volume);
1346
1347 pcm_volume.nrchannels = 4;
1348 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1349 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1350 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1351 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1352
1353 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1354 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1355 return UNIXToOSSError(ret);
1356}
1357//******************************************************************************
1358
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