source: GPL/branches/uniaud-2.0/lib32/sound.c@ 305

Last change on this file since 305 was 305, checked in by Paul Smedley, 17 years ago

Update source to ALSA 1.0.16 level
File size: 51.9 KB
Line 
1/* $Id: sound.c,v 1.2 2003/08/08 15:09:03 vladest Exp $ */
2/*
3 * MMPM/2 to OSS interface translation layer
4 *
5 * (C) 2000-2002 InnoTek Systemberatung GmbH
6 * (C) 2000-2001 Sander van Leeuwen (sandervl@xs4all.nl)
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public
19 * License along with this program; if not, write to the Free
20 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
21 * USA.
22 *
23 */
24
25#include <sound/core.h>
26#include <sound/control.h>
27#include <sound/info.h>
28#include <sound/pcm.h>
29#include <sound/pcm_params.h>
30#include <sound/minors.h>
31#include <linux/file.h>
32#include <linux/soundcard.h>
33
34#define LINUX
35#include <ossidc32.h>
36#include <osspci.h>
37#include <stacktoflat.h>
38#include <stdlib.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)
45
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 if(fuRates & SNDRV_PCM_RATE_5512) {
258 fuOSSRates |= OSS32_CAPS_PCM_RATE_5512;
259 }
260 if(fuRates & SNDRV_PCM_RATE_8000) {
261 fuOSSRates |= OSS32_CAPS_PCM_RATE_8000;
262 }
263 if(fuRates & SNDRV_PCM_RATE_11025) {
264 fuOSSRates |= OSS32_CAPS_PCM_RATE_11025;
265 }
266 if(fuRates & SNDRV_PCM_RATE_16000) {
267 fuOSSRates |= OSS32_CAPS_PCM_RATE_16000;
268 }
269 if(fuRates & SNDRV_PCM_RATE_22050) {
270 fuOSSRates |= OSS32_CAPS_PCM_RATE_22050;
271 }
272 if(fuRates & SNDRV_PCM_RATE_32000) {
273 fuOSSRates |= OSS32_CAPS_PCM_RATE_32000;
274 }
275 if(fuRates & SNDRV_PCM_RATE_44100) {
276 fuOSSRates |= OSS32_CAPS_PCM_RATE_44100;
277 }
278 if(fuRates & SNDRV_PCM_RATE_48000) {
279 fuOSSRates |= OSS32_CAPS_PCM_RATE_48000;
280 }
281#if 0
282 if(fuRates & SNDRV_PCM_RATE_64000) {
283 fuOSSRates |= OSS32_CAPS_PCM_RATE_64000;
284 }
285 if(fuRates & SNDRV_PCM_RATE_88200) {
286 fuOSSRates |= OSS32_CAPS_PCM_RATE_88200;
287 }
288 if(fuRates & SNDRV_PCM_RATE_96000) {
289 fuOSSRates |= OSS32_CAPS_PCM_RATE_96000;
290 }
291 if(fuRates & SNDRV_PCM_RATE_176400) {
292 fuOSSRates |= OSS32_CAPS_PCM_RATE_176400;
293 }
294 if(fuRates & SNDRV_PCM_RATE_192000) {
295 fuOSSRates |= OSS32_CAPS_PCM_RATE_192000;
296 }
297#endif
298 if(fuRates & SNDRV_PCM_RATE_CONTINUOUS) {
299 fuOSSRates |= OSS32_CAPS_PCM_RATE_CONTINUOUS;
300 }
301
302 //TODO:
303 if(fuRates & SNDRV_PCM_RATE_KNOT) {
304 DebugInt3();
305 }
306//#define OSS32_CAPS_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */
307
308 return fuOSSRates;
309}
310//******************************************************************************
311//******************************************************************************
312OSSRET OSS32_QueryDevCaps(ULONG deviceid, POSS32_DEVCAPS pDevCaps)
313{
314 OSSSTREAMID streamid = 0;
315 soundhandle *pHandle;
316 struct snd_pcm_info *pcminfo = NULL;
317 struct snd_pcm_hw_params *params;
318 int ret, fmt, i;
319 ULONG format_mask;
320 struct snd_mask *mask;
321 int max_ch;
322
323#ifdef DEBUG
324 dprintf(("OSS32_QueryDevCaps"));
325#endif
326// max_ch = GetMaxChannels(deviceid, OSS32_CAPS_WAVE_PLAYBACK);
327
328 //these structures are too big to put on the stack
329 pcminfo = (struct snd_pcm_info *)kmalloc(sizeof(struct snd_pcm_info)+sizeof(struct snd_pcm_hw_params), GFP_KERNEL);
330 if(pcminfo == NULL) {
331 DebugInt3();
332 printk("OSS32_QueryDevCaps: out of memory\n");
333 return OSSERR_OUT_OF_MEMORY;
334 }
335 params = (struct snd_pcm_hw_params *)(pcminfo+1);
336
337 printk("Number of cards: %i\n",nrCardsDetected);
338 printk("dev id: %i\n",deviceid);
339 pDevCaps->nrDevices = 1;//nrCardsDetected;
340 pDevCaps->ulCaps = OSS32_CAPS_WAVE_PLAYBACK | OSS32_CAPS_WAVE_CAPTURE;
341
342 //query wave in & out caps
343 for(i=0;i<2;i++)
344 {
345 PWAVE_CAPS pWaveCaps = (i == 0) ? &pDevCaps->waveOutCaps : &pDevCaps->waveInCaps;
346
347 ret = OSS32_WaveOpen(deviceid, (i == 0) ? OSS32_STREAM_WAVEOUT : OSS32_STREAM_WAVEIN, &streamid, 0, 0);
348 if(ret != OSSERR_SUCCESS)
349 {
350 printk("OSS32_QueryDevCaps: wave open error %i\n", ret);
351 DebugInt3();
352 goto fail;
353 }
354 pHandle = (soundhandle *)streamid;
355 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
356 printk("OSS32_QueryDevCaps: invalid stream id \n");
357 ret = OSSERR_INVALID_STREAMID;
358 goto fail;
359 }
360 //set operation to non-blocking
361 pHandle->file.f_flags = O_NONBLOCK;
362
363 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_INFO, (ULONG)pcminfo);
364 if(ret != 0) {
365 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_INFO error %i\n", ret);
366 ret = UNIXToOSSError(ret);
367 goto fail;
368 }
369 if(i == 0) {//only need to do this once
370 if(pcminfo->name[0]) {
371 strncpy(pDevCaps->szDeviceName, pcminfo->name, sizeof(pDevCaps->szDeviceName));
372 }
373 else strncpy(pDevCaps->szDeviceName, pcminfo->id, sizeof(pDevCaps->szDeviceName));
374 }
375 printk("Device name: %s\n", pDevCaps->szDeviceName);
376 pWaveCaps->nrStreams = pcminfo->subdevices_count;
377
378 //get all hardware parameters
379 _snd_pcm_hw_params_any(params);
380 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)params);
381 if(ret != 0) {
382 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_HW_REFINE error %i\n", ret);
383 ret = UNIXToOSSError(ret);
384 goto fail;
385 }
386
387 pWaveCaps->ulMinChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min;
388 pWaveCaps->ulMaxChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;
389 pWaveCaps->ulChanFlags = 0;
390 if(pWaveCaps->ulMinChannels == 1) {
391 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_MONO;
392 }
393 if(pWaveCaps->ulMaxChannels >= 2) {
394 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_STEREO;
395 }
396 if(pWaveCaps->ulMaxChannels >= 4) {
397 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_QUAD;
398 }
399 if(pWaveCaps->ulMaxChannels >= 6) {
400 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_5_1;
401 }
402
403 pWaveCaps->ulMinRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min;
404 pWaveCaps->ulMaxRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max;
405
406// mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_RATE_MASK);
407 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
408 pWaveCaps->ulRateFlags = mask->bits[0];
409
410 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
411
412 printk("rate flags: %X\n", pWaveCaps->ulRateFlags);
413
414 pWaveCaps->ulDataFormats = 0;
415
416 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
417 format_mask = mask->bits[0];
418 for(fmt=0;fmt<32;fmt++)
419 {
420 if(format_mask & (1 << fmt))
421 {
422 int f = ALSAToOSSDataType(fmt);
423 if (f >= 0)
424 pWaveCaps->ulDataFormats |= f;
425 }
426 }
427
428 OSS32_WaveClose(streamid);
429 streamid = 0;
430
431 }
432 //Check support for MPU401, FM & Wavetable MIDI
433 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
434 {
435 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
436 OSS32_MidiClose(streamid);
437 streamid = 0;
438 }
439 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
440 {
441 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
442 OSS32_MidiClose(streamid);
443 streamid = 0;
444 }
445 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
446 {
447 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
448 OSS32_MidiClose(streamid);
449 streamid = 0;
450 }
451 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
452 {
453 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
454 OSS32_MidiClose(streamid);
455 streamid = 0;
456 }
457 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
458 DebugInt3();
459 printk("OSS32_QueryDevCaps: OSS32_MixQueryName error\n");
460 goto fail;
461 }
462 printk("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName);
463 kfree(pcminfo);
464 streamid = 0;
465
466
467 return OSSERR_SUCCESS;
468
469fail:
470 printk("OSS32_QueryDevCaps failed\n");
471 DebugInt3();
472 if(streamid) OSS32_WaveClose(streamid);
473 if(pcminfo) kfree(pcminfo);
474
475 return ret;
476}
477//******************************************************************************
478//******************************************************************************
479OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
480{
481 soundhandle *pHandle;
482 int ret,i;
483
484 if (pStreamId)
485 *pStreamId = 0;
486 else
487 {
488 printk("ERROR: invalid stream id pointer passed\n");
489 return OSSERR_OUT_OF_MEMORY;
490 }
491
492 if(alsa_fops == NULL) {
493 DebugInt3();
494#ifdef DEBUG
495 dprintf(("OSS32_WaveOpen: no devices"));
496#endif
497 printk("OSS32_WaveOpen: no devices\n");
498
499 return OSSERR_NO_DEVICE_AVAILABLE;
500 }
501
502// printk("dev id: %i\n",deviceid);
503
504 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
505 if(pHandle == NULL) {
506 DebugInt3();
507 printk("OSS32_WaveOpen: out of memory\n");
508 return OSSERR_OUT_OF_MEMORY;
509 }
510 memset(pHandle, 0, sizeof(soundhandle));
511
512 //set operation to non-blocking
513 pHandle->file.f_flags = O_NONBLOCK;
514
515 //setup pointers in file structure (used internally by ALSA)
516 pHandle->file.f_dentry = &pHandle->d_entry;
517 pHandle->file.f_dentry->d_inode = &pHandle->inode;
518
519 switch(streamtype) {
520 case OSS32_STREAM_WAVEOUT:
521 pHandle->file.f_mode = FMODE_WRITE;
522 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
523 break;
524 case OSS32_STREAM_WAVEIN:
525 pHandle->file.f_mode = FMODE_READ;
526 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
527 break;
528 default:
529 DebugInt3();
530 kfree(pHandle);
531 printk("OSS32_WaveOpen: invalid parameter\n");
532 return OSSERR_INVALID_PARAMETER;
533 }
534
535 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
536 printk("OSS32_WaveOpen. ret: %i\n", ret);
537 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
538 if (ret == -16)
539 {
540 for (i=0; i < 8*256; i++)
541 {
542 if (opened_handles[i].handle != 0)
543 {
544 ret = 0;
545 if (pStreamId)
546 *pStreamId = (ULONG)opened_handles[i].handle;
547 opened_handles[i].reuse = 1; /* try to reuse */
548 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
549 {
550 if (!opened_handles[i].reuse)
551 {
552 //opened_handles[i].handle = 0;
553 kfree(opened_handles[i].handle); //free handle data
554 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
555 printk("OSS32_WaveOpen. Reopen ret: %i\n", ret);
556 }
557 else
558 {
559 kfree(pHandle);
560 pHandle = opened_handles[i].handle;
561 }
562 break;
563 }
564 }
565 }
566 }
567 else if (ret == 0)
568 {
569 for (i=0; i < 8*256; i++)
570 {
571 if (opened_handles[i].handle == 0)
572 {
573 opened_handles[i].handle = pHandle;
574 opened_handles[i].FileId = fileid;
575 break;
576 }
577 }
578 }
579
580 if(ret) {
581 kfree(pHandle);
582 DebugInt3();
583 printk("OSS32_WaveOpen: open error: %i\n",ret);
584 return UNIXToOSSError(ret);
585 }
586 pHandle->magic = MAGIC_WAVE_ALSA32;
587 if (pStreamId)
588 *pStreamId = (ULONG)pHandle;
589 // filling opened handles table
590 printk("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle);
591 return OSSERR_SUCCESS;
592}
593//******************************************************************************
594//******************************************************************************
595
596OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
597{
598 soundhandle *pHandle = (soundhandle *)streamid;
599 int ret = 0, i;
600
601 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
602 DebugInt3();
603 printk("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle);
604 return OSSERR_INVALID_STREAMID;
605 }
606
607 //set operation to non-blocking
608 pHandle->file.f_flags = O_NONBLOCK;
609
610 for (i=0; i < 8*256; i++)
611 {
612 if (opened_handles[i].handle == pHandle)
613 {
614 printk("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse);
615 if (!opened_handles[i].reuse)
616 {
617 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
618 opened_handles[i].handle = 0;
619 kfree(pHandle); //free handle data
620 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
621 } else
622 {
623 /* prepare for reuse */
624 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_RESET, 0);
625 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
626 }
627 break;
628 }
629 }
630
631 if (i >= 8*256)
632 {
633 //all already closed
634 printk("phandle %x not found\n", pHandle);
635// return OSSERR_SUCCESS;
636 }
637
638
639 if(ret) {
640 printk("Error closing wave. rc = %i\n", ret);
641 DebugInt3();
642 return UNIXToOSSError(ret);
643 }
644 printk("OSS32_WaveClose. streamid %X\n",(ULONG)pHandle);
645 return OSSERR_SUCCESS;
646}
647//******************************************************************************
648//******************************************************************************
649OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
650{
651 soundhandle *pHandle = (soundhandle *)streamid;
652 int ret;
653
654#ifdef DEBUG
655 dprintf(("OSS32_WavePrepare"));
656#endif
657
658 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
659 DebugInt3();
660//#ifdef DEBUG
661 printk("vladest: OSS32_WavePrepare: invalid streamID\n");
662//#endif
663
664 return OSSERR_INVALID_STREAMID;
665 }
666 //set operation to non-blocking
667 pHandle->file.f_flags = O_NONBLOCK;
668
669 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
670 if (ret)
671 printk("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle);
672
673 return UNIXToOSSError(ret);;
674}
675//******************************************************************************
676//******************************************************************************
677OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
678{
679 soundhandle *pHandle = (soundhandle *)streamid;
680 int ret;
681
682 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
683 DebugInt3();
684 return OSSERR_INVALID_STREAMID;
685 }
686 //set operation to non-blocking
687 pHandle->file.f_flags = O_NONBLOCK;
688
689 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
690 if (ret)
691 printk("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 printk("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 printk("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 printk("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_status status;
769 struct snd_pcm_sw_params swparams;
770 int ret, ret1, nrperiods, minnrperiods, maxnrperiods, samplesize, i;
771 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
772 ULONG periodbytes, minperiodbytes, maxperiodbytes;
773 BOOL fTryAgain = FALSE;
774 ULONG ulMinRate, ulMaxRate;
775
776#ifdef DEBUG
777 dprintf(("OSS32_WaveSetHwParams"));
778#endif
779 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
780 printk("OSS32_WaveSetHwParams error. Invalid handle: %x\n", pHandle);
781 DebugInt3();
782 return OSSERR_INVALID_STREAMID;
783 }
784 if(pHwParams == NULL) {
785 printk("OSS32_WaveSetHwParams error. params = NULL\n");
786 DebugInt3();
787 return OSSERR_INVALID_PARAMETER;
788 }
789 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
790 printk("OSS32_WaveSetHwParams error. Too high PCM format\n");
791 DebugInt3();
792 return OSSERR_INVALID_PARAMETER;
793 }
794 if ((int)pHwParams->ulNumChannels <= 0) {
795 printk("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels);
796 DebugInt3();
797 return OSSERR_INVALID_PARAMETER;
798 }
799tryagain:
800 //set operation to non-blocking
801 pHandle->file.f_flags = O_NONBLOCK;
802 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
803 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
804 pHandle->doublesamplesize = samplesize * 2;
805 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
806 periodbytes = pHwParams->ulPeriodSize;
807 periodsize = bytes_to_samples(periodbytes);
808 // checking number of channels
809
810 printk("channels: %i, period size: %i\n",pHwParams->ulNumChannels, periodbytes);
811 _snd_pcm_hw_params_any(&params);
812 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
813 ulMinRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->min;
814 ulMaxRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->max;
815
816 _snd_pcm_hw_params_any(&params);
817 do {
818 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
819 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
820 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
821 pHwParams->ulNumChannels, 0);
822 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
823 if (ret == 0) break;
824 pHwParams->ulNumChannels--;
825 } while(ret < 0 && pHwParams->ulNumChannels > 1);
826
827 printk("channels selected: %i\n",pHwParams->ulNumChannels);
828
829 //get all hardware parameters
830 _snd_pcm_hw_params_any(&params);
831 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
832 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
833 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
834 OSSToALSADataType[pHwParams->ulDataType], 0);
835 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
836 if(ret != 0) {
837 printk("invalid format %i\n", OSSToALSADataType[pHwParams->ulDataType]);
838 return UNIXToOSSError(ret);
839 }
840 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
841 pHwParams->ulBitsPerSample, 0);
842 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
843 if(ret != 0) {
844 printk("invalid number of sample bits %i\n", pHwParams->ulBitsPerSample);
845 return UNIXToOSSError(ret);
846 }
847 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
848 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
849 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
850 if(ret != 0) {
851 printk("invalid number of frame bits %i\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels);
852 return UNIXToOSSError(ret);
853 }
854
855 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
856 pHwParams->ulBitsPerSample, 0);
857 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
858 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
859 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
860 OSSToALSADataType[pHwParams->ulDataType], 0);
861 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
862 pHwParams->ulNumChannels, 0);
863 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
864 pHwParams->ulSampleRate, 0);
865
866 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
867 if(ret != 0) {
868 printk("OSS32_WaveSetHwParams (first pass) error %i\n", ret);
869 printk("bps: %i\n",pHwParams->ulBitsPerSample);
870 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
871 printk("channels: %i\n",pHwParams->ulNumChannels);
872 printk("sample rate: %i\n",pHwParams->ulSampleRate);
873
874// printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
875 // printk("will set to nearest\n");
876 _snd_pcm_hw_params_any(&params);
877 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
878 {
879 if (pHwParams->ulSampleRate >= rates[i] &&
880 pHwParams->ulSampleRate <= rates[i+1])
881 {
882 pHwParams->ulSampleRate = rates[i];
883 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
884 pHwParams->ulSampleRate, 0);
885 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
886 if(ret == 0)
887 {
888 _snd_pcm_hw_params_any(&params);
889 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
890 pHwParams->ulBitsPerSample, 0);
891 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
892 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
893 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
894 OSSToALSADataType[pHwParams->ulDataType], 0);
895 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
896 pHwParams->ulNumChannels, 0);
897 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
898 pHwParams->ulSampleRate, 0);
899 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
900 goto __next;
901 }
902 }
903 }
904
905// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
906 DebugInt3();
907 return UNIXToOSSError(ret);
908 }
909__next:
910
911 printk("sample rate: %i\n",pHwParams->ulSampleRate);
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 printk("OSS32_WaveSetHwParams error. Invalid periodsize (=0). closing file\n");
949// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
950 DebugInt3();
951 return OSSERR_INVALID_PARAMETER;
952 }
953 //check nr of periods against lower and upper boundaries
954 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
955 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
956 if(nrperiods < minnrperiods) {
957 nrperiods = minnrperiods;
958 }
959 else
960 if(nrperiods > maxnrperiods) {
961 nrperiods = maxnrperiods;
962 }
963 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
964 //so we make sure it's an even number.
965 if(nrperiods == 1) {
966 DebugInt3();
967 printk("OSS32_WaveSetHwParams error. Invalid number of periods(=1). closing file\n");
968// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
969 return OSSERR_INVALID_PARAMETER;
970 }
971 nrperiods &= ~1;
972
973 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
974 //period size and buffer size
975//tryagain:
976 _snd_pcm_hw_params_any(&params);
977 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
978 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
979 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
980 pHwParams->ulBitsPerSample, 0);
981 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
982 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
983 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
984 OSSToALSADataType[pHwParams->ulDataType], 0);
985 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
986 pHwParams->ulNumChannels, 0);
987 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
988 pHwParams->ulSampleRate, 0);
989 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
990 periodsize, 0);
991 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
992 periodbytes, 0);
993 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
994 nrperiods, 0);
995 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
996 periodsize*nrperiods, 0);
997 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
998 periodbytes*nrperiods, 0);
999//#ifdef DEBUG_PK
1000 printk("Hardware parameters: sample rate %i, data type %i, channels %i, period size %i, periods %i\n",
1001 pHwParams->ulSampleRate, pHwParams->ulDataType, pHwParams->ulNumChannels, periodsize, nrperiods);
1002//#endif
1003 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
1004 if (ret == -77 && fTryAgain == FALSE)
1005 {
1006 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1007 fTryAgain = TRUE;
1008 goto tryagain;
1009 }
1010 if(ret) {
1011 if(fTryAgain == FALSE) {
1012 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
1013 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1014 if(minperiodsize > maxperiodsize) {
1015 //ALSA doesn't like the period size; try suggested one
1016 periodsize = maxperiodsize;
1017 periodbytes = samples_to_bytes(periodsize);
1018 fTryAgain = TRUE;
1019 goto tryagain;
1020 }
1021 }
1022 printk("OSS32_WaveSetHwParams (second pass) error %i\n", ret);
1023 printk("bps: %i\n",pHwParams->ulBitsPerSample);
1024 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
1025 printk("channels: %i\n",pHwParams->ulNumChannels);
1026 printk("sample rate: %i\n",pHwParams->ulSampleRate);
1027 printk("periodsize: %i\n",periodsize);
1028 printk("periodbytes: %i\n",periodbytes);
1029 printk("periods: %i\n",nrperiods);
1030// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
1031 return UNIXToOSSError(ret);
1032 }
1033
1034 //set silence threshold (all sizes in frames) (only needed for playback)
1035 if(pHandle->file.f_mode == FMODE_WRITE)
1036 {
1037 swparams.avail_min = periodsize;
1038 swparams.period_step = 1;
1039 if(nrperiods <= 2) {
1040 swparams.silence_size = (periodsize/2);
1041 }
1042 else {
1043 swparams.silence_size = periodsize;
1044 }
1045 swparams.silence_threshold = swparams.silence_size;
1046 swparams.sleep_min = 0;
1047 swparams.start_threshold = 1;
1048 swparams.stop_threshold = periodsize*nrperiods;
1049 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1050 swparams.xfer_align = periodsize;
1051
1052 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1053 }
1054 total = 0;
1055 per_bytes = periodbytes;
1056 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1057 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1058 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1059 (status.state != SNDRV_PCM_STATE_DRAINING))) {
1060 printk("Device is not in proper state: %i. Calling prepare\n", status.state);
1061 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1062 }
1063 printk("OSS32_WaveSetHwParams return %d after SNDRV_PCM_IOCTL_SW_PARAMS ioctl, streamid %X", ret,(ULONG)pHandle);
1064 return UNIXToOSSError(ret);
1065}
1066
1067//******************************************************************************
1068ULONG CountWv=0;
1069ULONG LockAdd=0;
1070extern ULONG xchg( ULONG *p, ULONG x);
1071#pragma aux xchg = "xchg [esi],eax" parm [ESI][EAX] value [EAX];
1072//******************************************************************************
1073OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG buffer, ULONG size, ULONG *pTransferred, int pcm)
1074{
1075 soundhandle *pHandle = (soundhandle *)streamid;
1076 struct snd_pcm_status status;
1077 int ret, align, size1, ret1;
1078 LONG transferred;
1079 ULONG position,i,j;
1080 char *buf;
1081
1082// return OSSERR_SUCCESS;
1083
1084 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1085 DebugInt3();
1086 return OSSERR_INVALID_STREAMID;
1087 }
1088 if(pTransferred == NULL || buffer == 0 || size == 0) {
1089 DebugInt3();
1090 return OSSERR_INVALID_PARAMETER;
1091 }
1092
1093 //set operation to non-blocking
1094 pHandle->file.f_flags = O_NONBLOCK;
1095
1096 //first check how much room is left in the circular dma buffer
1097 //this is done to make sure we don't block inside ALSA while trying to write
1098 //more data than fits in the internal dma buffer.
1099 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1100
1101 if(ret) {
1102 DebugInt3();
1103 return UNIXToOSSError(ret);
1104 }
1105
1106 size1 = size;
1107
1108 size = min(size, samples_to_bytes(status.avail));
1109
1110#ifdef DEBUG_PK
1111 if (size1 != size)
1112 printk("requested size [%d] less then available [%d]\n", size1, size);
1113#endif
1114
1115 CountWv++;
1116
1117#ifdef DEBUG
1118 printk("OSS32_WaveAddBuffer N:%d hw %d app %d avail %d, orig size: %d, size %d\n",CountWv, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), size1, size);
1119#endif
1120
1121 if (size == 0)
1122 {
1123#ifdef DEBUG_PK
1124 printk("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n");
1125 printk("state = %i\n",status.state);
1126 printk("avail = %i\n",status.avail);
1127 printk("size req = %i\n",size1);
1128#endif
1129 *pTransferred = 0;
1130 return OSSERR_BUFFER_FULL;
1131 }
1132
1133 transferred = 0;
1134 *pTransferred = 0;
1135 ret = -11;
1136 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1137 {
1138 case SNDRV_MINOR_PCM_PLAYBACK:
1139 // size should be aligned to channels number * samplesize //PS+++ what is it and why?!?!?!
1140 j = 10; // 10 try if error
1141 while (size && j && ret)
1142 {
1143 for (i=0; i < 1000; i++)
1144 {
1145 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1146 // If here any state and have free buffer to any byte
1147 if ((status.state != SNDRV_PCM_STATE_XRUN ) && samples_to_bytes(status.avail) )
1148 break;
1149 if (i > 998)
1150 {
1151// 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));
1152 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1153 }
1154 }
1155
1156 if (ret1 < 0)
1157 {
1158// printk("Status Error ret1:%i trans: %i need %d tot:%d\n",ret1,transferred, size,size1);
1159 break; // We have any global error, don't try more
1160 }
1161
1162 ret = pHandle->file.f_op->write(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1163
1164 if (ret < 0 )
1165 { // We have any error, don't try more
1166 j--;
1167 if ( ret != -11 )
1168 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1169// printk("Error ret:%i ret1:%i trans: %d need %d tot:%d\n",ret,ret1,transferred, size,size1);
1170 continue;
1171 }
1172 if (ret == 0) continue;
1173 transferred += ret;
1174// printk("written: now: %d, trans: %d need %d tot:%d\n", ret, transferred, size,size1);
1175 buffer += ret;
1176 if (size > ret)
1177 size -= ret;
1178 else
1179 size = 0;
1180 }
1181 break;
1182 case SNDRV_MINOR_PCM_CAPTURE:
1183 transferred = pHandle->file.f_op->read(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1184// printk("readed %i bytes\n", transferred);
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 ULONG delta;
1210
1211 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1212 DebugInt3();
1213 return OSSERR_INVALID_STREAMID;
1214 }
1215 if(pPosition == NULL) {
1216 DebugInt3();
1217 return OSSERR_INVALID_PARAMETER;
1218 }
1219
1220 //set operation to non-blocking
1221 pHandle->file.f_flags = O_NONBLOCK;
1222
1223 //Get the status of the stream
1224 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1225
1226 if(ret) {
1227 DebugInt3();
1228 return UNIXToOSSError(ret);
1229 }
1230
1231 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1232 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1233 return OSSERR_SUCCESS;
1234}
1235//******************************************************************************
1236//******************************************************************************
1237OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1238{
1239 soundhandle *pHandle = (soundhandle *)streamid;
1240 struct snd_pcm_status status;
1241 int ret;
1242
1243 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1244 DebugInt3();
1245 return OSSERR_INVALID_STREAMID;
1246 }
1247 if(pBytesAvail == NULL) {
1248 DebugInt3();
1249 return OSSERR_INVALID_PARAMETER;
1250 }
1251
1252 //set operation to non-blocking
1253 pHandle->file.f_flags = O_NONBLOCK;
1254
1255 //Get the nr of bytes left in the audio buffer
1256 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1257
1258 if(ret) {
1259 DebugInt3();
1260 return UNIXToOSSError(ret);
1261 }
1262 ret = samples_to_bytes(status.avail);
1263
1264 *pBytesAvail = ret > 752? ret - 752 : 0;
1265 return OSSERR_SUCCESS;
1266}
1267//******************************************************************************
1268//******************************************************************************
1269OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1270{
1271 soundhandle *pHandle = (soundhandle *)streamid;
1272 int ret;
1273 int leftvol, rightvol;
1274 struct snd_pcm_volume pcm_volume;
1275
1276 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1277 DebugInt3();
1278 return OSSERR_INVALID_STREAMID;
1279 }
1280 //set operation to non-blocking
1281 pHandle->file.f_flags = O_NONBLOCK;
1282
1283 leftvol = GET_VOLUME_L(volume);
1284 rightvol = GET_VOLUME_R(volume);
1285
1286 pcm_volume.nrchannels = 4;
1287 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1288 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1289 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1290 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1291
1292 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1293 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1294 return UNIXToOSSError(ret);
1295}
1296//******************************************************************************
1297//******************************************************************************
1298
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