source: GPL/branches/uniaud32-2.0/lib32/sound.c@ 352

Last change on this file since 352 was 352, checked in by Paul Smedley, 17 years ago

IRQ patch from Pavel
File size: 52.4 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",nrCardsDetected);
338 printk("dev id: %i",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", 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_FORMAT);
407 printk("rate flags1: %X", mask);
408
409 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_RATE_MASK);
410 printk("rate flags2: %X", mask);
411
412 pWaveCaps->ulRateFlags = mask->bits[0];
413
414 printk("rate flags3: %X", pWaveCaps->ulRateFlags);
415 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
416
417 printk("rate flags4: %X", pWaveCaps->ulRateFlags);
418
419 pWaveCaps->ulDataFormats = 0;
420
421 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
422 format_mask = mask->bits[0];
423 for(fmt=0;fmt<32;fmt++)
424 {
425 if(format_mask & (1 << fmt))
426 {
427 int f = ALSAToOSSDataType(fmt);
428 if (f >= 0)
429 pWaveCaps->ulDataFormats |= f;
430 }
431 }
432
433 OSS32_WaveClose(streamid);
434 streamid = 0;
435
436 }
437 //Check support for MPU401, FM & Wavetable MIDI
438 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
439 {
440 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
441 OSS32_MidiClose(streamid);
442 streamid = 0;
443 }
444 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
445 {
446 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
447 OSS32_MidiClose(streamid);
448 streamid = 0;
449 }
450 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
451 {
452 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
453 OSS32_MidiClose(streamid);
454 streamid = 0;
455 }
456 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
457 {
458 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
459 OSS32_MidiClose(streamid);
460 streamid = 0;
461 }
462 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
463 DebugInt3();
464 printk("OSS32_QueryDevCaps: OSS32_MixQueryName error\n");
465 goto fail;
466 }
467 printk("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName);
468 kfree(pcminfo);
469 streamid = 0;
470
471
472 return OSSERR_SUCCESS;
473
474fail:
475 printk("OSS32_QueryDevCaps failed\n");
476 DebugInt3();
477 if(streamid) OSS32_WaveClose(streamid);
478 if(pcminfo) kfree(pcminfo);
479
480 return ret;
481}
482//******************************************************************************
483//******************************************************************************
484OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
485{
486 soundhandle *pHandle;
487 int ret,i;
488
489 if (pStreamId)
490 *pStreamId = 0;
491 else
492 {
493 printk("ERROR: invalid stream id pointer passed\n");
494 return OSSERR_OUT_OF_MEMORY;
495 }
496
497 if(alsa_fops == NULL) {
498 DebugInt3();
499#ifdef DEBUG
500 dprintf(("OSS32_WaveOpen: no devices"));
501#endif
502 printk("OSS32_WaveOpen: no devices\n");
503
504 return OSSERR_NO_DEVICE_AVAILABLE;
505 }
506
507// printk("dev id: %i\n",deviceid);
508
509 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
510 if(pHandle == NULL) {
511 DebugInt3();
512 printk("OSS32_WaveOpen: out of memory\n");
513 return OSSERR_OUT_OF_MEMORY;
514 }
515 memset(pHandle, 0, sizeof(soundhandle));
516
517 //set operation to non-blocking
518 pHandle->file.f_flags = O_NONBLOCK;
519
520 //setup pointers in file structure (used internally by ALSA)
521 pHandle->file.f_dentry = &pHandle->d_entry;
522 pHandle->file.f_dentry->d_inode = &pHandle->inode;
523
524 switch(streamtype) {
525 case OSS32_STREAM_WAVEOUT:
526 pHandle->file.f_mode = FMODE_WRITE;
527 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
528 break;
529 case OSS32_STREAM_WAVEIN:
530 pHandle->file.f_mode = FMODE_READ;
531 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
532 break;
533 default:
534 DebugInt3();
535 kfree(pHandle);
536 printk("OSS32_WaveOpen: invalid parameter\n");
537 return OSSERR_INVALID_PARAMETER;
538 }
539
540 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
541 printk("OSS32_WaveOpen. ret: %i\n", ret);
542 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
543 if (ret == -16)
544 {
545 for (i=0; i < 8*256; i++)
546 {
547 if (opened_handles[i].handle != 0)
548 {
549 ret = 0;
550 if (pStreamId)
551 *pStreamId = (ULONG)opened_handles[i].handle;
552 opened_handles[i].reuse = 1; /* try to reuse */
553 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
554 {
555 if (!opened_handles[i].reuse)
556 {
557 //opened_handles[i].handle = 0;
558 kfree(opened_handles[i].handle); //free handle data
559 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
560 printk("OSS32_WaveOpen. Reopen ret: %i\n", ret);
561 }
562 else
563 {
564 kfree(pHandle);
565 pHandle = opened_handles[i].handle;
566 }
567 break;
568 }
569 }
570 }
571 }
572 else if (ret == 0)
573 {
574 for (i=0; i < 8*256; i++)
575 {
576 if (opened_handles[i].handle == 0)
577 {
578 opened_handles[i].handle = pHandle;
579 opened_handles[i].FileId = fileid;
580 break;
581 }
582 }
583 }
584
585 if(ret) {
586 kfree(pHandle);
587 DebugInt3();
588 printk("OSS32_WaveOpen: open error: %i\n",ret);
589 return UNIXToOSSError(ret);
590 }
591 pHandle->magic = MAGIC_WAVE_ALSA32;
592 if (pStreamId)
593 *pStreamId = (ULONG)pHandle;
594 // filling opened handles table
595 printk("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle);
596 return OSSERR_SUCCESS;
597}
598//******************************************************************************
599//******************************************************************************
600
601OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
602{
603 soundhandle *pHandle = (soundhandle *)streamid;
604 int ret = 0, i;
605
606 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
607 DebugInt3();
608 printk("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle);
609 return OSSERR_INVALID_STREAMID;
610 }
611
612 //set operation to non-blocking
613 pHandle->file.f_flags = O_NONBLOCK;
614
615 for (i=0; i < 8*256; i++)
616 {
617 if (opened_handles[i].handle == pHandle)
618 {
619 printk("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse);
620 if (!opened_handles[i].reuse)
621 {
622 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
623 opened_handles[i].handle = 0;
624 kfree(pHandle); //free handle data
625 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
626 } else
627 {
628 /* prepare for reuse */
629 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_RESET, 0);
630 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
631 }
632 break;
633 }
634 }
635
636 if (i >= 8*256)
637 {
638 //all already closed
639 printk("phandle %x not found\n", pHandle);
640// return OSSERR_SUCCESS;
641 }
642
643
644 if(ret) {
645 printk("Error closing wave. rc = %i\n", ret);
646 DebugInt3();
647 return UNIXToOSSError(ret);
648 }
649 printk("OSS32_WaveClose. streamid %X\n",(ULONG)pHandle);
650 return OSSERR_SUCCESS;
651}
652//******************************************************************************
653//******************************************************************************
654OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
655{
656 soundhandle *pHandle = (soundhandle *)streamid;
657 int ret;
658
659#ifdef DEBUG
660 dprintf(("OSS32_WavePrepare"));
661#endif
662
663 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
664 DebugInt3();
665//#ifdef DEBUG
666 printk("vladest: OSS32_WavePrepare: invalid streamID\n");
667//#endif
668
669 return OSSERR_INVALID_STREAMID;
670 }
671 //set operation to non-blocking
672 pHandle->file.f_flags = O_NONBLOCK;
673
674 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
675 if (ret)
676 printk("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle);
677
678 return UNIXToOSSError(ret);;
679}
680//******************************************************************************
681//******************************************************************************
682OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
683{
684 soundhandle *pHandle = (soundhandle *)streamid;
685 int ret;
686
687 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
688 DebugInt3();
689 return OSSERR_INVALID_STREAMID;
690 }
691 //set operation to non-blocking
692 pHandle->file.f_flags = O_NONBLOCK;
693
694 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
695 if (ret)
696 printk("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle);
697
698 return UNIXToOSSError(ret);;
699}
700//******************************************************************************
701//******************************************************************************
702OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
703{
704 soundhandle *pHandle = (soundhandle *)streamid;
705 int ret;
706
707 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
708 DebugInt3();
709 return OSSERR_INVALID_STREAMID;
710 }
711 //set operation to non-blocking
712 pHandle->file.f_flags = O_NONBLOCK;
713
714 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
715 if (ret)
716 printk("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle);
717
718 return UNIXToOSSError(ret);;
719}
720//******************************************************************************
721//******************************************************************************
722OSSRET OSS32_WavePause(OSSSTREAMID streamid)
723{
724 soundhandle *pHandle = (soundhandle *)streamid;
725 int ret;
726
727 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
728 DebugInt3();
729 return OSSERR_INVALID_STREAMID;
730 }
731 //set operation to non-blocking
732 pHandle->file.f_flags = O_NONBLOCK;
733
734 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
735 if (ret)
736 printk("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle);
737
738 return UNIXToOSSError(ret);;
739}
740//******************************************************************************
741//******************************************************************************
742OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
743{
744 soundhandle *pHandle = (soundhandle *)streamid;
745 int ret;
746
747 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
748 DebugInt3();
749 return OSSERR_INVALID_STREAMID;
750 }
751 //set operation to non-blocking
752 pHandle->file.f_flags = O_NONBLOCK;
753
754 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
755 if (ret)
756 printk("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle);
757
758 return UNIXToOSSError(ret);;
759}
760
761static unsigned rates[] = {
762 /* ATTENTION: these values depend on the definition in pcm.h! */
763 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
764 64000, 88200, 96000, 176400, 192000
765};
766
767//******************************************************************************
768//******************************************************************************
769OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
770{
771 soundhandle *pHandle = (soundhandle *)streamid;
772 struct snd_pcm_hw_params params;
773 struct snd_pcm_status status;
774 struct snd_pcm_sw_params swparams;
775 int ret, ret1, nrperiods, minnrperiods, maxnrperiods, samplesize, i;
776 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
777 ULONG periodbytes, minperiodbytes, maxperiodbytes;
778 BOOL fTryAgain = FALSE;
779 ULONG ulMinRate, ulMaxRate;
780
781#ifdef DEBUG
782 dprintf(("OSS32_WaveSetHwParams"));
783#endif
784 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
785 printk("OSS32_WaveSetHwParams error. Invalid handle: %x\n", pHandle);
786 DebugInt3();
787 return OSSERR_INVALID_STREAMID;
788 }
789 if(pHwParams == NULL) {
790 printk("OSS32_WaveSetHwParams error. params = NULL\n");
791 DebugInt3();
792 return OSSERR_INVALID_PARAMETER;
793 }
794 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
795 printk("OSS32_WaveSetHwParams error. Too high PCM format\n");
796 DebugInt3();
797 return OSSERR_INVALID_PARAMETER;
798 }
799 if ((int)pHwParams->ulNumChannels <= 0) {
800 printk("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels);
801 DebugInt3();
802 return OSSERR_INVALID_PARAMETER;
803 }
804tryagain:
805 //set operation to non-blocking
806 pHandle->file.f_flags = O_NONBLOCK;
807 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
808 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
809 pHandle->doublesamplesize = samplesize * 2;
810 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
811// periodbytes = pHwParams->ulPeriodSize;
812// periodsize = bytes_to_samples(periodbytes);
813 periodsize = pHwParams->ulPeriodSize;
814 periodbytes = samples_to_bytes(periodsize);
815 // checking number of channels
816
817 printk("channels: %i, period bytes: %i\n",pHwParams->ulNumChannels, periodbytes);
818 _snd_pcm_hw_params_any(&params);
819 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
820 ulMinRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->min;
821 ulMaxRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->max;
822
823 _snd_pcm_hw_params_any(&params);
824 do {
825 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
826 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
827 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
828 pHwParams->ulNumChannels, 0);
829 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
830 if (ret == 0) break;
831 pHwParams->ulNumChannels--;
832 } while(ret < 0 && pHwParams->ulNumChannels > 1);
833
834 printk("channels selected: %i\n",pHwParams->ulNumChannels);
835
836 //get all hardware parameters
837 _snd_pcm_hw_params_any(&params);
838 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
839 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
840 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
841 OSSToALSADataType[pHwParams->ulDataType], 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 format %i\n", OSSToALSADataType[pHwParams->ulDataType]);
845 return UNIXToOSSError(ret);
846 }
847 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
848 pHwParams->ulBitsPerSample, 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 sample bits %i\n", pHwParams->ulBitsPerSample);
852 return UNIXToOSSError(ret);
853 }
854 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
855 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
856 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
857 if(ret != 0) {
858 printk("invalid number of frame bits %i\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels);
859 return UNIXToOSSError(ret);
860 }
861
862 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
863 pHwParams->ulBitsPerSample, 0);
864 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
865 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
866 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
867 OSSToALSADataType[pHwParams->ulDataType], 0);
868 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
869 pHwParams->ulNumChannels, 0);
870 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
871 pHwParams->ulSampleRate, 0);
872
873 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
874 if(ret != 0) {
875 printk("OSS32_WaveSetHwParams (first pass) error %i\n", ret);
876 printk("bps: %i\n",pHwParams->ulBitsPerSample);
877 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
878 printk("channels: %i\n",pHwParams->ulNumChannels);
879 printk("sample rate: %i\n",pHwParams->ulSampleRate);
880
881// printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
882 // printk("will set to nearest\n");
883 _snd_pcm_hw_params_any(&params);
884 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
885 {
886 if (pHwParams->ulSampleRate >= rates[i] &&
887 pHwParams->ulSampleRate <= rates[i+1])
888 {
889 pHwParams->ulSampleRate = rates[i];
890 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
891 pHwParams->ulSampleRate, 0);
892 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
893 if(ret == 0)
894 {
895 _snd_pcm_hw_params_any(&params);
896 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
897 pHwParams->ulBitsPerSample, 0);
898 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
899 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
900 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
901 OSSToALSADataType[pHwParams->ulDataType], 0);
902 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
903 pHwParams->ulNumChannels, 0);
904 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
905 pHwParams->ulSampleRate, 0);
906 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
907 goto __next;
908 }
909 }
910 }
911
912// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
913 DebugInt3();
914 return UNIXToOSSError(ret);
915 }
916__next:
917
918 printk("sample rate: %i\n",pHwParams->ulSampleRate);
919
920 //check period size against lower and upper boundaries
921 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
922 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
923
924 if(periodbytes < minperiodbytes) {
925 periodbytes = minperiodbytes;
926 }
927 else
928 if(periodbytes > maxperiodbytes) {
929 periodbytes = maxperiodbytes;
930 }
931 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
932 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
933 if(periodsize < minperiodsize) {
934 periodsize = minperiodsize;
935 }
936 else
937 if(periodsize > maxperiodsize) {
938 periodsize = maxperiodsize;
939 }
940 if(samples_to_bytes(periodsize) < periodbytes) {
941 periodbytes = samples_to_bytes(periodsize);
942 }
943 else
944 if(bytes_to_samples(periodbytes) < periodsize) {
945 periodsize = bytes_to_samples(periodbytes);
946 }
947 //make sure period size is a whole fraction of the buffer size
948 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
949
950#if 0
951 if(periodsize) {
952 nrperiods = bufsize/periodbytes;
953 }
954 else {
955 printk("OSS32_WaveSetHwParams error. Invalid periodsize (=0). closing file\n");
956// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
957 DebugInt3();
958 return OSSERR_INVALID_PARAMETER;
959 }
960#else
961 nrperiods = 3;
962#endif
963 //check nr of periods against lower and upper boundaries
964 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
965 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
966 if(nrperiods < minnrperiods) {
967 nrperiods = minnrperiods;
968 }
969 else
970 if(nrperiods > maxnrperiods) {
971 nrperiods = maxnrperiods;
972 }
973 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
974 //so we make sure it's an even number.
975 if(nrperiods == 1) {
976 DebugInt3();
977 printk("OSS32_WaveSetHwParams error. Invalid number of periods(=1). closing file\n");
978// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
979 return OSSERR_INVALID_PARAMETER;
980 }
981 nrperiods &= ~1;
982
983 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
984 //period size and buffer size
985//tryagain:
986 _snd_pcm_hw_params_any(&params);
987 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
988 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
989 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
990 pHwParams->ulBitsPerSample, 0);
991 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
992 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
993 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
994 OSSToALSADataType[pHwParams->ulDataType], 0);
995 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
996 pHwParams->ulNumChannels, 0);
997 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
998 pHwParams->ulSampleRate, 0);
999 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
1000 periodsize, 0);
1001 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
1002 periodbytes, 0);
1003 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
1004 nrperiods, 0);
1005 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
1006 periodsize*nrperiods, 0);
1007 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
1008 periodbytes*nrperiods, 0);
1009
1010//#ifdef DEBUG_PK
1011 printk("Hardware parameters: sample rate %i, data type %i, channels %i, period bytes %i, period size %i, nrperiods %i\n",
1012 pHwParams->ulSampleRate, pHwParams->ulDataType, pHwParams->ulNumChannels, periodbytes, periodsize, nrperiods);
1013//#endif
1014 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
1015 printk("OSS32_WaveSetHwParams return %d after SNDRV_PCM_IOCTL_HW_PARAMS ioctl", ret);
1016 if (ret == -77 && fTryAgain == FALSE)
1017 {
1018 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1019 fTryAgain = TRUE;
1020 goto tryagain;
1021 }
1022 if(ret) {
1023 if(fTryAgain == FALSE) {
1024 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
1025 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1026 if(minperiodsize > maxperiodsize) {
1027 //ALSA doesn't like the period size; try suggested one
1028 periodsize = maxperiodsize;
1029 periodbytes = samples_to_bytes(periodsize);
1030 fTryAgain = TRUE;
1031 goto tryagain;
1032 }
1033 }
1034 printk("OSS32_WaveSetHwParams (second pass) error %i\n", ret);
1035 printk("bps: %i\n",pHwParams->ulBitsPerSample);
1036 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
1037 printk("channels: %i\n",pHwParams->ulNumChannels);
1038 printk("sample rate: %i\n",pHwParams->ulSampleRate);
1039 printk("periodsize: %i\n",periodsize);
1040 printk("periodbytes: %i\n",periodbytes);
1041 printk("periods: %i\n",nrperiods);
1042// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
1043 return UNIXToOSSError(ret);
1044 }
1045
1046 //set silence threshold (all sizes in frames) (only needed for playback)
1047 if(pHandle->file.f_mode == FMODE_WRITE)
1048 {
1049 swparams.avail_min = periodsize;
1050 swparams.period_step = 1;
1051 if(nrperiods <= 2) {
1052 swparams.silence_size = (periodsize/2);
1053 }
1054 else {
1055 swparams.silence_size = periodsize;
1056 }
1057 swparams.silence_threshold = swparams.silence_size;
1058 swparams.sleep_min = 0;
1059 swparams.start_threshold = 1;
1060 swparams.stop_threshold = periodsize*nrperiods;
1061 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1062 swparams.xfer_align = periodsize;
1063
1064 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1065 }
1066 total = 0;
1067 per_bytes = periodbytes;
1068 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1069 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1070 (status.state != SNDRV_PCM_STATE_SETUP) &&
1071 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1072 (status.state != SNDRV_PCM_STATE_DRAINING))) {
1073 printk("Device is not in proper state: %i. Calling prepare\n", status.state);
1074 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1075 }
1076 printk("OSS32_WaveSetHwParams return %d after SNDRV_PCM_IOCTL_SW_PARAMS ioctl, streamid %X", ret,(ULONG)pHandle);
1077 return UNIXToOSSError(ret);
1078}
1079
1080//******************************************************************************
1081ULONG CountWv=0;
1082ULONG LockAdd=0;
1083extern ULONG xchg( ULONG *p, ULONG x);
1084#pragma aux xchg = "xchg [esi],eax" parm [ESI][EAX] value [EAX];
1085//******************************************************************************
1086OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG buffer, ULONG size, ULONG *pTransferred, int pcm)
1087{
1088 soundhandle *pHandle = (soundhandle *)streamid;
1089 struct snd_pcm_status status;
1090 int ret, align, size1, ret1;
1091 LONG transferred;
1092 ULONG position,i,j;
1093 char *buf;
1094
1095// return OSSERR_SUCCESS;
1096
1097 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1098 DebugInt3();
1099 return OSSERR_INVALID_STREAMID;
1100 }
1101 if(pTransferred == NULL || buffer == 0 || size == 0) {
1102 DebugInt3();
1103 return OSSERR_INVALID_PARAMETER;
1104 }
1105
1106 //set operation to non-blocking
1107 pHandle->file.f_flags = O_NONBLOCK;
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 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1113
1114 if(ret) {
1115 DebugInt3();
1116 return UNIXToOSSError(ret);
1117 }
1118
1119 size1 = size;
1120
1121 size = min(size, samples_to_bytes(status.avail));
1122
1123#ifdef DEBUG_PK
1124 if (size1 != size)
1125 printk("requested size [%d] less then available [%d]\n", size1, size);
1126#endif
1127
1128 CountWv++;
1129
1130#ifdef DEBUG
1131 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);
1132#endif
1133
1134 if (size == 0)
1135 {
1136#ifdef DEBUG_PK
1137 printk("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n");
1138 printk("state = %i\n",status.state);
1139 printk("avail = %i\n",status.avail);
1140 printk("size req = %i\n",size1);
1141#endif
1142 *pTransferred = 0;
1143 return OSSERR_BUFFER_FULL;
1144 }
1145
1146 transferred = 0;
1147 *pTransferred = 0;
1148 ret = -11;
1149 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1150 {
1151 case SNDRV_MINOR_PCM_PLAYBACK:
1152 // size should be aligned to channels number * samplesize //PS+++ what is it and why?!?!?!
1153 j = 10; // 10 try if error
1154 while (size && j && ret)
1155 {
1156 for (i=0; i < 1000; i++)
1157 {
1158 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1159 // If here any state and have free buffer to any byte
1160 if ((status.state != SNDRV_PCM_STATE_XRUN ) && samples_to_bytes(status.avail) )
1161 break;
1162 if (i > 998)
1163 {
1164// 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));
1165 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1166 }
1167 }
1168
1169 if (ret1 < 0)
1170 {
1171// printk("Status Error ret1:%i trans: %i need %d tot:%d\n",ret1,transferred, size,size1);
1172 break; // We have any global error, don't try more
1173 }
1174
1175 ret = pHandle->file.f_op->write(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1176
1177 if (ret < 0 )
1178 { // We have any error, don't try more
1179 j--;
1180 if ( ret != -11 )
1181 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1182// printk("Error ret:%i ret1:%i trans: %d need %d tot:%d\n",ret,ret1,transferred, size,size1);
1183 continue;
1184 }
1185 if (ret == 0) continue;
1186 transferred += ret;
1187// printk("written: now: %d, trans: %d need %d tot:%d\n", ret, transferred, size,size1);
1188 buffer += ret;
1189 if (size > ret)
1190 size -= ret;
1191 else
1192 size = 0;
1193 }
1194 break;
1195 case SNDRV_MINOR_PCM_CAPTURE:
1196 transferred = pHandle->file.f_op->read(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1197// printk("readed %i bytes\n", transferred);
1198 break;
1199 default:
1200 DebugInt3();
1201 return OSSERR_INVALID_PARAMETER;
1202 }
1203
1204 total += transferred;
1205 *pTransferred = transferred;
1206 prev_size = transferred;
1207 if (*pTransferred < size1)
1208 {
1209 printk("warning: transferred [%d] less than requested [%d]\n", *pTransferred, size1);
1210// ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1211 }
1212
1213 return OSSERR_SUCCESS;
1214}
1215//******************************************************************************
1216//******************************************************************************
1217OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1218{
1219 soundhandle *pHandle = (soundhandle *)streamid;
1220 struct snd_pcm_status status;
1221 int ret;
1222 ULONG delta;
1223
1224 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1225 DebugInt3();
1226 return OSSERR_INVALID_STREAMID;
1227 }
1228 if(pPosition == NULL) {
1229 DebugInt3();
1230 return OSSERR_INVALID_PARAMETER;
1231 }
1232
1233 //set operation to non-blocking
1234 pHandle->file.f_flags = O_NONBLOCK;
1235
1236 //Get the status of the stream
1237 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1238
1239 if(ret) {
1240 DebugInt3();
1241 return UNIXToOSSError(ret);
1242 }
1243
1244 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1245 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1246 return OSSERR_SUCCESS;
1247}
1248//******************************************************************************
1249//******************************************************************************
1250OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1251{
1252 soundhandle *pHandle = (soundhandle *)streamid;
1253 struct snd_pcm_status status;
1254 int ret;
1255
1256 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1257 DebugInt3();
1258 return OSSERR_INVALID_STREAMID;
1259 }
1260 if(pBytesAvail == NULL) {
1261 DebugInt3();
1262 return OSSERR_INVALID_PARAMETER;
1263 }
1264
1265 //set operation to non-blocking
1266 pHandle->file.f_flags = O_NONBLOCK;
1267
1268 //Get the nr of bytes left in the audio buffer
1269 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1270
1271 if(ret) {
1272 DebugInt3();
1273 return UNIXToOSSError(ret);
1274 }
1275 ret = samples_to_bytes(status.avail);
1276
1277 *pBytesAvail = ret > 752? ret - 752 : 0;
1278 return OSSERR_SUCCESS;
1279}
1280//******************************************************************************
1281//******************************************************************************
1282OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1283{
1284 soundhandle *pHandle = (soundhandle *)streamid;
1285 int ret;
1286 int leftvol, rightvol;
1287 struct snd_pcm_volume pcm_volume;
1288
1289 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1290 DebugInt3();
1291 return OSSERR_INVALID_STREAMID;
1292 }
1293 //set operation to non-blocking
1294 pHandle->file.f_flags = O_NONBLOCK;
1295
1296 leftvol = GET_VOLUME_L(volume);
1297 rightvol = GET_VOLUME_R(volume);
1298
1299 pcm_volume.nrchannels = 4;
1300 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1301 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1302 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1303 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1304
1305 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1306 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1307 return UNIXToOSSError(ret);
1308}
1309//******************************************************************************
1310//******************************************************************************
1311
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