source: GPL/trunk/lib32/sound.c@ 82

Last change on this file since 82 was 82, checked in by vladest, 19 years ago

Stream reusing fix
File size: 51.6 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/driver.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;
54int pcm_instances = 0;
55
56OpenedHandles opened_handles[8 * 256] = {0};
57
58//OSS32 to ALSA datatype conversion table
59static 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 snd_pcm_info_t *pcminfo = NULL;
317 snd_pcm_hw_params_t *params;
318 int ret, fmt, i;
319 ULONG format_mask;
320 snd_mask_t *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 = (snd_pcm_info_t *)kmalloc(sizeof(snd_pcm_info_t)+sizeof(snd_pcm_hw_params_t), 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 = (snd_pcm_hw_params_t *)(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 pWaveCaps->ulRateFlags = mask->bits[0];
408
409 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
410
411 printk("rate flags: %X\n", pWaveCaps->ulRateFlags);
412
413 pWaveCaps->ulDataFormats = 0;
414
415 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
416 format_mask = mask->bits[0];
417 for(fmt=0;fmt<32;fmt++)
418 {
419 if(format_mask & (1 << fmt))
420 {
421 int f = ALSAToOSSDataType(fmt);
422 if (f >= 0)
423 pWaveCaps->ulDataFormats |= f;
424 }
425 }
426
427 OSS32_WaveClose(streamid);
428 streamid = 0;
429
430 }
431 //Check support for MPU401, FM & Wavetable MIDI
432 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
433 {
434 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
435 OSS32_MidiClose(streamid);
436 streamid = 0;
437 }
438 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
439 {
440 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
441 OSS32_MidiClose(streamid);
442 streamid = 0;
443 }
444 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
445 {
446 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
447 OSS32_MidiClose(streamid);
448 streamid = 0;
449 }
450 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
451 {
452 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
453 OSS32_MidiClose(streamid);
454 streamid = 0;
455 }
456 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
457 DebugInt3();
458 printk("OSS32_QueryDevCaps: OSS32_MixQueryName error\n");
459 goto fail;
460 }
461// printk("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName);
462 kfree(pcminfo);
463 streamid = 0;
464
465
466 return OSSERR_SUCCESS;
467
468fail:
469 printk("OSS32_QueryDevCaps failed\n");
470 DebugInt3();
471 if(streamid) OSS32_WaveClose(streamid);
472 if(pcminfo) kfree(pcminfo);
473
474 return ret;
475}
476//******************************************************************************
477//******************************************************************************
478OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
479{
480 soundhandle *pHandle;
481 int ret,i;
482
483 if (pStreamId)
484 *pStreamId = 0;
485 else
486 {
487 printk("ERROR: invalid stream id pointer passed\n");
488 return OSSERR_OUT_OF_MEMORY;
489 }
490
491 if(alsa_fops == NULL) {
492 DebugInt3();
493#ifdef DEBUG
494 dprintf(("OSS32_WaveOpen: no devices"));
495#endif
496 printk("OSS32_WaveOpen: no devices\n");
497
498 return OSSERR_NO_DEVICE_AVAILABLE;
499 }
500
501// printk("dev id: %i\n",deviceid);
502
503 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
504 if(pHandle == NULL) {
505 DebugInt3();
506 printk("OSS32_WaveOpen: out of memory\n");
507 return OSSERR_OUT_OF_MEMORY;
508 }
509 memset(pHandle, 0, sizeof(soundhandle));
510
511 //set operation to non-blocking
512 pHandle->file.f_flags = O_NONBLOCK;
513
514 //setup pointers in file structure (used internally by ALSA)
515 pHandle->file.f_dentry = &pHandle->d_entry;
516 pHandle->file.f_dentry->d_inode = &pHandle->inode;
517
518 switch(streamtype) {
519 case OSS32_STREAM_WAVEOUT:
520 pHandle->file.f_mode = FMODE_WRITE;
521 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
522 break;
523 case OSS32_STREAM_WAVEIN:
524 pHandle->file.f_mode = FMODE_READ;
525 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
526 break;
527 default:
528 DebugInt3();
529 kfree(pHandle);
530 printk("OSS32_WaveOpen: invalid parameter\n");
531 return OSSERR_INVALID_PARAMETER;
532 }
533
534 printk("OSS32_WaveOpen: cp1\n");
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 if (pStreamId)
545 *pStreamId = (ULONG)opened_handles[i].handle;
546 opened_handles[i].reuse = 0; /* prevent from reusing */
547 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
548 {
549 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
550 opened_handles[i].handle = 0;
551 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
552 printk("OSS32_WaveOpen. Reopen ret: %i\n", ret);
553 break;
554 }
555 }
556 }
557 }
558 printk("OSS32_WaveOpen: cp3\n");
559
560 if(ret) {
561 kfree(pHandle);
562 DebugInt3();
563 printk("OSS32_WaveOpen: open error: %i\n",ret);
564 return UNIXToOSSError(ret);
565 }
566 pHandle->magic = MAGIC_WAVE_ALSA32;
567 printk("OSS32_WaveOpen: cp4\n");
568
569 if (pStreamId)
570 *pStreamId = (ULONG)pHandle;
571 // filling opened handles table
572 for (i=0; i < 8*256; i++)
573 {
574 if (opened_handles[i].handle == 0)
575 {
576 opened_handles[i].handle = pHandle;
577 opened_handles[i].FileId = fileid;
578 break;
579 }
580 }
581 printk("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle);
582 return OSSERR_SUCCESS;
583}
584//******************************************************************************
585//******************************************************************************
586OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
587{
588 soundhandle *pHandle = (soundhandle *)streamid;
589 int ret = 0, i;
590
591 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
592 DebugInt3();
593 printk("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle);
594 return OSSERR_INVALID_STREAMID;
595 }
596
597 //set operation to non-blocking
598 pHandle->file.f_flags = O_NONBLOCK;
599
600 for (i=0; i < 8*256; i++)
601 {
602 if (opened_handles[i].handle == pHandle)
603 {
604 printk("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse);
605 if (!opened_handles[i].reuse)
606 {
607 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
608 opened_handles[i].handle = 0;
609 kfree(pHandle); //free handle data
610 } else
611 {
612 /* prepare for reuse */
613 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
614 }
615 break;
616 }
617 }
618
619 if (i >= 8*256)
620 {
621 //all already closed
622 printk("phandle %x not found\n", pHandle);
623// return OSSERR_SUCCESS;
624 }
625
626
627 if(ret) {
628 printk("Error closing wave. rc = %i\n", ret);
629 DebugInt3();
630 return UNIXToOSSError(ret);
631 }
632 printk("OSS32_WaveClose. streamid %X\n",(ULONG)pHandle);
633 return OSSERR_SUCCESS;
634}
635//******************************************************************************
636//******************************************************************************
637OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
638{
639 soundhandle *pHandle = (soundhandle *)streamid;
640 int ret;
641
642#ifdef DEBUG
643 dprintf(("OSS32_WavePrepare"));
644#endif
645
646 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
647 DebugInt3();
648//#ifdef DEBUG
649 printk("vladest: OSS32_WavePrepare: invalid streamID\n");
650//#endif
651
652 return OSSERR_INVALID_STREAMID;
653 }
654 //set operation to non-blocking
655 pHandle->file.f_flags = O_NONBLOCK;
656
657 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
658 if (ret)
659 printk("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle);
660
661 return UNIXToOSSError(ret);;
662}
663//******************************************************************************
664//******************************************************************************
665OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
666{
667 soundhandle *pHandle = (soundhandle *)streamid;
668 int ret;
669
670 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
671 DebugInt3();
672 return OSSERR_INVALID_STREAMID;
673 }
674 //set operation to non-blocking
675 pHandle->file.f_flags = O_NONBLOCK;
676
677 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
678 if (ret)
679 printk("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle);
680
681 return UNIXToOSSError(ret);;
682}
683//******************************************************************************
684//******************************************************************************
685OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
686{
687 soundhandle *pHandle = (soundhandle *)streamid;
688 int ret;
689
690 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
691 DebugInt3();
692 return OSSERR_INVALID_STREAMID;
693 }
694 //set operation to non-blocking
695 pHandle->file.f_flags = O_NONBLOCK;
696
697 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
698 if (ret)
699 printk("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle);
700
701 return UNIXToOSSError(ret);;
702}
703//******************************************************************************
704//******************************************************************************
705OSSRET OSS32_WavePause(OSSSTREAMID streamid)
706{
707 soundhandle *pHandle = (soundhandle *)streamid;
708 int ret;
709
710 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
711 DebugInt3();
712 return OSSERR_INVALID_STREAMID;
713 }
714 //set operation to non-blocking
715 pHandle->file.f_flags = O_NONBLOCK;
716
717 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
718 if (ret)
719 printk("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle);
720
721 return UNIXToOSSError(ret);;
722}
723//******************************************************************************
724//******************************************************************************
725OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
726{
727 soundhandle *pHandle = (soundhandle *)streamid;
728 int ret;
729
730 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
731 DebugInt3();
732 return OSSERR_INVALID_STREAMID;
733 }
734 //set operation to non-blocking
735 pHandle->file.f_flags = O_NONBLOCK;
736
737 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
738 if (ret)
739 printk("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle);
740
741 return UNIXToOSSError(ret);;
742}
743
744static unsigned rates[] = {
745 /* ATTENTION: these values depend on the definition in pcm.h! */
746 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
747 64000, 88200, 96000, 176400, 192000
748};
749
750//******************************************************************************
751//******************************************************************************
752OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
753{
754 soundhandle *pHandle = (soundhandle *)streamid;
755 snd_pcm_hw_params_t params;
756 snd_pcm_sw_params_t swparams;
757 int ret, ret1, nrperiods, minnrperiods, maxnrperiods, samplesize, i;
758 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
759 ULONG periodbytes, minperiodbytes, maxperiodbytes;
760 BOOL fTryAgain = FALSE;
761 ULONG ulMinRate, ulMaxRate;
762
763#ifdef DEBUG
764 dprintf(("OSS32_WaveSetHwParams"));
765#endif
766 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
767 printk("OSS32_WaveSetHwParams error. Invalid handle\n");
768 DebugInt3();
769 return OSSERR_INVALID_STREAMID;
770 }
771 if(pHwParams == NULL) {
772 printk("OSS32_WaveSetHwParams error. params = NULL\n");
773 DebugInt3();
774 return OSSERR_INVALID_PARAMETER;
775 }
776 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
777 printk("OSS32_WaveSetHwParams error. Too high PCM format\n");
778 DebugInt3();
779 return OSSERR_INVALID_PARAMETER;
780 }
781 if ((int)pHwParams->ulNumChannels <= 0) {
782 printk("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels);
783 DebugInt3();
784 return OSSERR_INVALID_PARAMETER;
785 }
786tryagain:
787 //set operation to non-blocking
788 pHandle->file.f_flags = O_NONBLOCK;
789 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
790 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
791 pHandle->doublesamplesize = samplesize * 2;
792 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
793 periodbytes = pHwParams->ulPeriodSize;
794 periodsize = bytes_to_samples(periodbytes);
795 // checking number of channels
796
797 printk("channels: %i, period size: %i\n",pHwParams->ulNumChannels, periodbytes);
798 _snd_pcm_hw_params_any(&params);
799 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
800 ulMinRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->min;
801 ulMaxRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->max;
802
803 _snd_pcm_hw_params_any(&params);
804 do {
805 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
806 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
807 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
808 pHwParams->ulNumChannels, 0);
809 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
810 if (ret == 0) break;
811 pHwParams->ulNumChannels--;
812 } while(ret < 0 && pHwParams->ulNumChannels > 1);
813
814 printk("channels selected: %i\n",pHwParams->ulNumChannels);
815
816 //get all hardware parameters
817 _snd_pcm_hw_params_any(&params);
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_FORMAT,
821 OSSToALSADataType[pHwParams->ulDataType], 0);
822 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
823 if(ret != 0) {
824 printk("invalid format %i\n", OSSToALSADataType[pHwParams->ulDataType]);
825 return UNIXToOSSError(ret);
826 }
827 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
828 pHwParams->ulBitsPerSample, 0);
829 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
830 if(ret != 0) {
831 printk("invalid number of sample bits %i\n", pHwParams->ulBitsPerSample);
832 return UNIXToOSSError(ret);
833 }
834 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
835 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
836 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
837 if(ret != 0) {
838 printk("invalid number of frame bits %i\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels);
839 return UNIXToOSSError(ret);
840 }
841
842 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
843 pHwParams->ulBitsPerSample, 0);
844 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
845 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
846 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
847 OSSToALSADataType[pHwParams->ulDataType], 0);
848 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
849 pHwParams->ulNumChannels, 0);
850 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
851 pHwParams->ulSampleRate, 0);
852
853 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
854 if(ret != 0) {
855 printk("OSS32_WaveSetHwParams (first pass) error %i\n", ret);
856 printk("bps: %i\n",pHwParams->ulBitsPerSample);
857 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
858 printk("channels: %i\n",pHwParams->ulNumChannels);
859 printk("sample rate: %i\n",pHwParams->ulSampleRate);
860
861// printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
862 // printk("will set to nearest\n");
863 _snd_pcm_hw_params_any(&params);
864 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
865 {
866 if (pHwParams->ulSampleRate >= rates[i] &&
867 pHwParams->ulSampleRate <= rates[i+1])
868 {
869 pHwParams->ulSampleRate = rates[i];
870 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
871 pHwParams->ulSampleRate, 0);
872 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
873 if(ret == 0)
874 {
875 _snd_pcm_hw_params_any(&params);
876 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
877 pHwParams->ulBitsPerSample, 0);
878 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
879 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
880 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
881 OSSToALSADataType[pHwParams->ulDataType], 0);
882 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
883 pHwParams->ulNumChannels, 0);
884 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
885 pHwParams->ulSampleRate, 0);
886 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
887 goto __next;
888 }
889 }
890 }
891// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
892 DebugInt3();
893 return UNIXToOSSError(ret);
894 }
895__next:
896
897 printk("sample rate: %i\n",pHwParams->ulSampleRate);
898
899 //check period size against lower and upper boundaries
900 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
901 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
902 if(periodbytes < minperiodbytes) {
903 periodbytes = minperiodbytes;
904 }
905 else
906 if(periodbytes > maxperiodbytes) {
907 periodbytes = maxperiodbytes;
908 }
909
910 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
911 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
912 if(periodsize < minperiodsize) {
913 periodsize = minperiodsize;
914 }
915 else
916 if(periodsize > maxperiodsize) {
917 periodsize = maxperiodsize;
918 }
919
920 if(samples_to_bytes(periodsize) < periodbytes) {
921 periodbytes = samples_to_bytes(periodsize);
922 }
923 else
924 if(bytes_to_samples(periodbytes) < periodsize) {
925 periodsize = bytes_to_samples(periodbytes);
926 }
927
928 //make sure period size is a whole fraction of the buffer size
929 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
930 if(periodsize) {
931 nrperiods = bufsize/periodbytes;
932 }
933 else {
934 printk("OSS32_WaveSetHwParams error. Invalid periodsize (=0). closing file\n");
935// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
936 DebugInt3();
937 return OSSERR_INVALID_PARAMETER;
938 }
939 //check nr of periods against lower and upper boundaries
940 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
941 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
942 if(nrperiods < minnrperiods) {
943 nrperiods = minnrperiods;
944 }
945 else
946 if(nrperiods > maxnrperiods) {
947 nrperiods = maxnrperiods;
948 }
949 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
950 //so we make sure it's an even number.
951 if(nrperiods == 1) {
952 DebugInt3();
953 printk("OSS32_WaveSetHwParams error. Invalid number of periods(=1). closing file\n");
954// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
955 return OSSERR_INVALID_PARAMETER;
956 }
957 nrperiods &= ~1;
958
959 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
960 //period size and buffer size
961//tryagain:
962 _snd_pcm_hw_params_any(&params);
963 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
964 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
965 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
966 pHwParams->ulBitsPerSample, 0);
967 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
968 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
969 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
970 OSSToALSADataType[pHwParams->ulDataType], 0);
971 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
972 pHwParams->ulNumChannels, 0);
973 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
974 pHwParams->ulSampleRate, 0);
975 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
976 periodsize, 0);
977 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
978 periodbytes, 0);
979 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
980 nrperiods, 0);
981 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
982 periodsize*nrperiods, 0);
983 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
984 periodbytes*nrperiods, 0);
985//#ifdef DEBUG_PK
986 printk("Hardware parameters: sample rate %i, data type %i, channels %i, period size %i, periods %i\n",
987 pHwParams->ulSampleRate, pHwParams->ulDataType, pHwParams->ulNumChannels, periodsize, nrperiods);
988//#endif
989 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
990 if (ret == -77 && fTryAgain == FALSE)
991 {
992 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
993 fTryAgain = TRUE;
994 goto tryagain;
995 }
996 if(ret) {
997 if(fTryAgain == FALSE) {
998 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
999 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1000 if(minperiodsize > maxperiodsize) {
1001 //ALSA doesn't like the period size; try suggested one
1002 periodsize = maxperiodsize;
1003 periodbytes = samples_to_bytes(periodsize);
1004 fTryAgain = TRUE;
1005 goto tryagain;
1006 }
1007 }
1008 printk("OSS32_WaveSetHwParams (second pass) error %i\n", ret);
1009 printk("bps: %i\n",pHwParams->ulBitsPerSample);
1010 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
1011 printk("channels: %i\n",pHwParams->ulNumChannels);
1012 printk("sample rate: %i\n",pHwParams->ulSampleRate);
1013 printk("periodsize: %i\n",periodsize);
1014 printk("periodbytes: %i\n",periodbytes);
1015 printk("periods: %i\n",nrperiods);
1016// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
1017 return UNIXToOSSError(ret);
1018 }
1019
1020 //set silence threshold (all sizes in frames) (only needed for playback)
1021 if(pHandle->file.f_mode == FMODE_WRITE)
1022 {
1023 swparams.avail_min = periodsize;
1024 swparams.period_step = 1;
1025 if(nrperiods <= 2) {
1026 swparams.silence_size = (periodsize/2);
1027 }
1028 else {
1029 swparams.silence_size = periodsize;
1030 }
1031 swparams.silence_threshold = swparams.silence_size;
1032 swparams.sleep_min = 0;
1033 swparams.start_threshold = 1;
1034 swparams.stop_threshold = periodsize*nrperiods;
1035 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1036 swparams.xfer_align = periodsize;
1037
1038 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1039 }
1040 total = 0;
1041 per_bytes = periodbytes;
1042 printk("OSS32_WaveSetHwParams return %d after SNDRV_PCM_IOCTL_SW_PARAMS ioctl, streamid %X", ret,(ULONG)pHandle);
1043 return UNIXToOSSError(ret);
1044}
1045
1046//******************************************************************************
1047//******************************************************************************
1048OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG buffer, ULONG size, ULONG *pTransferred, int pcm)
1049{
1050 soundhandle *pHandle = (soundhandle *)streamid;
1051 snd_pcm_status_t status;
1052 int ret, align, size1, ret1;
1053 LONG transferred;
1054 ULONG position;
1055 char *buf;
1056 int toret = 0;
1057
1058// return OSSERR_SUCCESS;
1059
1060 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1061 DebugInt3();
1062 return OSSERR_INVALID_STREAMID;
1063 }
1064 if(pTransferred == NULL || buffer == 0 || size == 0) {
1065 DebugInt3();
1066 return OSSERR_INVALID_PARAMETER;
1067 }
1068
1069 //set operation to non-blocking
1070 pHandle->file.f_flags = O_NONBLOCK;
1071
1072 //first check how much room is left in the circular dma buffer
1073 //this is done to make sure we don't block inside ALSA while trying to write
1074 //more data than fits in the internal dma buffer.
1075 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1076
1077 if(ret) {
1078 DebugInt3();
1079 return UNIXToOSSError(ret);
1080 }
1081
1082 size1 = size;
1083
1084 size = min(size, samples_to_bytes(status.avail));
1085 if (size1 != size)
1086 printk("requested size [%i] less then available [%s]\n", size1, size);
1087#if 0
1088 if (size < per_bytes)
1089 { /*HACK!!!*/
1090 printk("HACK avoid buffer overrun: requested buffer [%i] less than period [%i]. prev size: %i\n", size, per_bytes, prev_size);
1091 *pTransferred = size;
1092 prev_size = size;
1093 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1094 return OSSERR_SUCCESS;
1095 }
1096#endif
1097// size = per_bytes * (size / per_bytes);
1098
1099#ifdef DEBUG_PK
1100 printk("OSS32_WaveAddBuffer hw %i app %i avail %i, orig size: %i, size %i align %i\n", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), size1, size, per_bytes);
1101#endif
1102
1103 if(size == 0) {
1104#ifdef DEBUG_PK
1105 printk("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n");
1106 printk("state = %i\n",status.state);
1107 printk("avail = %i\n",status.avail);
1108 printk("size req = %i\n",size1);
1109#endif
1110 *pTransferred = 0;
1111 return OSSERR_BUFFER_FULL;
1112 }
1113
1114 transferred = 0;
1115 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1116 {
1117 case SNDRV_MINOR_PCM_PLAYBACK:
1118 // size should be aligned to channels number * samplesize
1119
1120 while(TRUE) {
1121 again:
1122 ret = pHandle->file.f_op->write(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1123 if(ret < 0) {
1124 // check EAGAIN
1125 if (ret == -EPIPE)
1126 {
1127 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1128// if (ret1 == 0) continue;
1129// printk("prepare rc %i\n",ret);
1130 }
1131
1132 if(transferred > 0) {
1133 printk("OSS32_WaveAddBuffer failed on partial transfer %x %i; ret = %i\n", buffer, size, ret);
1134 *pTransferred = transferred;
1135 return OSSERR_SUCCESS;
1136 }
1137
1138 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1139
1140 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1141 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1142 (status.state != SNDRV_PCM_STATE_DRAINING)) || ret == -32 ) {
1143 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1144 printk("OSS32_WaveAddBuffer buffer overrun: size %i, ret %i, trans %i, prev sz %i per sz %i total %i\n", size, ret, transferred, prev_size, per_bytes, total);
1145 ret = size;
1146 transferred = size;
1147 break; /* UGLY hack*/
1148 //goto again;
1149 }
1150 else {
1151 printk("OSS32_WaveAddBuffer failed when SNDRV_MINOR_PCM_PLAYBACK. rc = %i\n",ret);
1152 printk("hw %i app %i avail %i, size %i\n", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), size);
1153 printk("total = %i\n",total);
1154 printk("state = %i\n",status.state);
1155 printk("avail = %i\n",status.avail);
1156 printk("size req = %i\n",size1);
1157 DebugInt3();
1158 return UNIXToOSSError(transferred);
1159 }
1160 }
1161 if(ret == 0) {
1162 break;
1163 }
1164 transferred += ret;
1165// printk("written: now: %i, buffer: %i, total: %i\n", ret, transferred, total);
1166 buffer += ret;
1167 size -= ret;
1168 if((int)size <= 0) {
1169 break;
1170 }
1171 }
1172 break;
1173 case SNDRV_MINOR_PCM_CAPTURE:
1174 transferred = pHandle->file.f_op->read(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1175// printk("readed %i bytes\n", transferred);
1176 break;
1177 default:
1178 DebugInt3();
1179 return OSSERR_INVALID_PARAMETER;
1180 }
1181 if(ret < 0) {
1182 dprintf(("OSS32_WaveAddBuffer failed"));
1183 DebugInt3();
1184 return UNIXToOSSError(transferred);
1185 }
1186
1187 total+=transferred;
1188 *pTransferred = transferred;
1189 prev_size = transferred;
1190 if (transferred < size)
1191 {
1192 printk("warning: transferred [%i] less than requested [%i]\n", transferred, size);
1193 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1194 }
1195
1196 return OSSERR_SUCCESS;
1197}
1198//******************************************************************************
1199//******************************************************************************
1200OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1201{
1202 soundhandle *pHandle = (soundhandle *)streamid;
1203 snd_pcm_status_t status;
1204 int ret;
1205 ULONG delta;
1206
1207 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1208 DebugInt3();
1209 return OSSERR_INVALID_STREAMID;
1210 }
1211 if(pPosition == NULL) {
1212 DebugInt3();
1213 return OSSERR_INVALID_PARAMETER;
1214 }
1215
1216 //set operation to non-blocking
1217 pHandle->file.f_flags = O_NONBLOCK;
1218
1219 //Get the status of the stream
1220 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1221
1222 if(ret) {
1223 DebugInt3();
1224 return UNIXToOSSError(ret);
1225 }
1226
1227 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1228 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1229 return OSSERR_SUCCESS;
1230}
1231//******************************************************************************
1232//******************************************************************************
1233OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1234{
1235 soundhandle *pHandle = (soundhandle *)streamid;
1236 snd_pcm_status_t status;
1237 int ret;
1238
1239 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1240 DebugInt3();
1241 return OSSERR_INVALID_STREAMID;
1242 }
1243 if(pBytesAvail == NULL) {
1244 DebugInt3();
1245 return OSSERR_INVALID_PARAMETER;
1246 }
1247
1248 //set operation to non-blocking
1249 pHandle->file.f_flags = O_NONBLOCK;
1250
1251 //Get the nr of bytes left in the audio buffer
1252 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1253
1254 if(ret) {
1255 DebugInt3();
1256 return UNIXToOSSError(ret);
1257 }
1258 *pBytesAvail = samples_to_bytes(status.avail);
1259 return OSSERR_SUCCESS;
1260}
1261//******************************************************************************
1262//******************************************************************************
1263OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1264{
1265 soundhandle *pHandle = (soundhandle *)streamid;
1266 int ret;
1267 int leftvol, rightvol;
1268 struct snd_pcm_volume pcm_volume;
1269
1270 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1271 DebugInt3();
1272 return OSSERR_INVALID_STREAMID;
1273 }
1274 //set operation to non-blocking
1275 pHandle->file.f_flags = O_NONBLOCK;
1276
1277 leftvol = GET_VOLUME_L(volume);
1278 rightvol = GET_VOLUME_R(volume);
1279
1280 pcm_volume.nrchannels = 4;
1281 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1282 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1283 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1284 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1285
1286 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1287 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1288 return UNIXToOSSError(ret);
1289}
1290//******************************************************************************
1291//******************************************************************************
1292
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