source: GPL/lib32/sound.c@ 18

Last change on this file since 18 was 18, checked in by vladest, 20 years ago

initial import
File size: 51.1 KB
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[18]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 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
535 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
536 if (ret == -16)
537 {
538 kfree(pHandle);
539 for (i=0; i < 8*256; i++)
540 {
541 if (opened_handles[i].handle != 0)
542 {
543 if (pStreamId)
544 *pStreamId = (ULONG)opened_handles[i].handle;
545 opened_handles[i].reuse = 1;
546 printk("OSS32_WaveOpen. Reuse streamid %X\n",(ULONG)opened_handles[i].handle);
547 return OSSERR_SUCCESS;
548 }
549 }
550 }
551
552 if(ret) {
553 kfree(pHandle);
554 DebugInt3();
555 printk("OSS32_WaveOpen: open error: %i\n",ret);
556 return UNIXToOSSError(ret);
557 }
558 pHandle->magic = MAGIC_WAVE_ALSA32;
559
560 if (pStreamId)
561 *pStreamId = (ULONG)pHandle;
562 // filling opened handles table
563 for (i=0; i < 8*256; i++)
564 {
565 if (opened_handles[i].handle == 0)
566 {
567 opened_handles[i].handle = pHandle;
568 opened_handles[i].FileId = fileid;
569 break;
570 }
571 }
572 printk("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle);
573 return OSSERR_SUCCESS;
574}
575//******************************************************************************
576//******************************************************************************
577OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
578{
579 soundhandle *pHandle = (soundhandle *)streamid;
580 int ret = 0, i;
581
582 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
583 DebugInt3();
584 printk("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle);
585 return OSSERR_INVALID_STREAMID;
586 }
587
588 //set operation to non-blocking
589 pHandle->file.f_flags = O_NONBLOCK;
590
591 for (i=0; i < 8*256; i++)
592 {
593 if (opened_handles[i].handle == pHandle)
594 {
595 printk("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse);
596 if (!opened_handles[i].reuse)
597 {
598 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
599 opened_handles[i].handle = 0;
600 kfree(pHandle); //free handle data
601 } else
602 {
603 /* prepare for reuse */
604 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
605 }
606 break;
607 }
608 }
609
610 if (i >= 8*256)
611 {
612 //all already closed
613 printk("phandle %x not found\n", pHandle);
614// return OSSERR_SUCCESS;
615 }
616
617
618 if(ret) {
619 printk("Error closing wave. rc = %i\n", ret);
620 DebugInt3();
621 return UNIXToOSSError(ret);
622 }
623 printk("OSS32_WaveClose. streamid %X\n",(ULONG)pHandle);
624 return OSSERR_SUCCESS;
625}
626//******************************************************************************
627//******************************************************************************
628OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
629{
630 soundhandle *pHandle = (soundhandle *)streamid;
631 int ret;
632
633#ifdef DEBUG
634 dprintf(("OSS32_WavePrepare"));
635#endif
636
637 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
638 DebugInt3();
639//#ifdef DEBUG
640 printk("vladest: OSS32_WavePrepare: invalid streamID\n");
641//#endif
642
643 return OSSERR_INVALID_STREAMID;
644 }
645 //set operation to non-blocking
646 pHandle->file.f_flags = O_NONBLOCK;
647
648 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
649 if (ret)
650 printk("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle);
651
652 return UNIXToOSSError(ret);;
653}
654//******************************************************************************
655//******************************************************************************
656OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
657{
658 soundhandle *pHandle = (soundhandle *)streamid;
659 int ret;
660
661 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
662 DebugInt3();
663 return OSSERR_INVALID_STREAMID;
664 }
665 //set operation to non-blocking
666 pHandle->file.f_flags = O_NONBLOCK;
667
668 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
669 if (ret)
670 printk("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle);
671
672 return UNIXToOSSError(ret);;
673}
674//******************************************************************************
675//******************************************************************************
676OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
677{
678 soundhandle *pHandle = (soundhandle *)streamid;
679 int ret;
680
681 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
682 DebugInt3();
683 return OSSERR_INVALID_STREAMID;
684 }
685 //set operation to non-blocking
686 pHandle->file.f_flags = O_NONBLOCK;
687
688 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
689 if (ret)
690 printk("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle);
691
692 return UNIXToOSSError(ret);;
693}
694//******************************************************************************
695//******************************************************************************
696OSSRET OSS32_WavePause(OSSSTREAMID streamid)
697{
698 soundhandle *pHandle = (soundhandle *)streamid;
699 int ret;
700
701 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
702 DebugInt3();
703 return OSSERR_INVALID_STREAMID;
704 }
705 //set operation to non-blocking
706 pHandle->file.f_flags = O_NONBLOCK;
707
708 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
709 if (ret)
710 printk("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle);
711
712 return UNIXToOSSError(ret);;
713}
714//******************************************************************************
715//******************************************************************************
716OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
717{
718 soundhandle *pHandle = (soundhandle *)streamid;
719 int ret;
720
721 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
722 DebugInt3();
723 return OSSERR_INVALID_STREAMID;
724 }
725 //set operation to non-blocking
726 pHandle->file.f_flags = O_NONBLOCK;
727
728 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
729 if (ret)
730 printk("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle);
731
732 return UNIXToOSSError(ret);;
733}
734
735static unsigned rates[] = {
736 /* ATTENTION: these values depend on the definition in pcm.h! */
737 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
738 64000, 88200, 96000, 176400, 192000
739};
740
741//******************************************************************************
742//******************************************************************************
743OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
744{
745 soundhandle *pHandle = (soundhandle *)streamid;
746 snd_pcm_hw_params_t params;
747 snd_pcm_sw_params_t swparams;
748 int ret, ret1, nrperiods, minnrperiods, maxnrperiods, samplesize, i;
749 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
750 ULONG periodbytes, minperiodbytes, maxperiodbytes;
751 BOOL fTryAgain = FALSE;
752 ULONG ulMinRate, ulMaxRate;
753
754#ifdef DEBUG
755 dprintf(("OSS32_WaveSetHwParams"));
756#endif
757 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
758 printk("OSS32_WaveSetHwParams error. Invalid handle\n");
759 DebugInt3();
760 return OSSERR_INVALID_STREAMID;
761 }
762 if(pHwParams == NULL) {
763 printk("OSS32_WaveSetHwParams error. params = NULL\n");
764 DebugInt3();
765 return OSSERR_INVALID_PARAMETER;
766 }
767 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
768 printk("OSS32_WaveSetHwParams error. Too high PCM format\n");
769 DebugInt3();
770 return OSSERR_INVALID_PARAMETER;
771 }
772 if ((int)pHwParams->ulNumChannels <= 0) {
773 printk("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels);
774 DebugInt3();
775 return OSSERR_INVALID_PARAMETER;
776 }
777
778 //set operation to non-blocking
779 pHandle->file.f_flags = O_NONBLOCK;
780 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
781 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
782 pHandle->doublesamplesize = samplesize * 2;
783 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
784 periodbytes = pHwParams->ulPeriodSize;
785 periodsize = bytes_to_samples(periodbytes);
786 // checking number of channels
787
788 printk("channels: %i, period size: %i\n",pHwParams->ulNumChannels, periodbytes);
789 _snd_pcm_hw_params_any(&params);
790 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
791 ulMinRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->min;
792 ulMaxRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->max;
793
794 _snd_pcm_hw_params_any(&params);
795 do {
796 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
797 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
798 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
799 pHwParams->ulNumChannels, 0);
800 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
801 if (ret == 0) break;
802 pHwParams->ulNumChannels--;
803 } while(ret < 0 && pHwParams->ulNumChannels > 1);
804
805 printk("channels selected: %i\n",pHwParams->ulNumChannels);
806
807 //get all hardware parameters
808 _snd_pcm_hw_params_any(&params);
809 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
810 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
811 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
812 OSSToALSADataType[pHwParams->ulDataType], 0);
813 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
814 if(ret != 0) {
815 printk("invalid format %i\n", OSSToALSADataType[pHwParams->ulDataType]);
816 return UNIXToOSSError(ret);
817 }
818 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
819 pHwParams->ulBitsPerSample, 0);
820 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
821 if(ret != 0) {
822 printk("invalid number of sample bits %i\n", pHwParams->ulBitsPerSample);
823 return UNIXToOSSError(ret);
824 }
825 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
826 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
827 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
828 if(ret != 0) {
829 printk("invalid number of frame bits %i\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels);
830 return UNIXToOSSError(ret);
831 }
832
833 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
834 pHwParams->ulBitsPerSample, 0);
835 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
836 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
837 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
838 OSSToALSADataType[pHwParams->ulDataType], 0);
839 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
840 pHwParams->ulNumChannels, 0);
841 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
842 pHwParams->ulSampleRate, 0);
843
844 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
845 if(ret != 0) {
846 printk("OSS32_WaveSetHwParams (first pass) error %i\n", ret);
847 printk("bps: %i\n",pHwParams->ulBitsPerSample);
848 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
849 printk("channels: %i\n",pHwParams->ulNumChannels);
850 printk("sample rate: %i\n",pHwParams->ulSampleRate);
851
852// printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
853 // printk("will set to nearest\n");
854 _snd_pcm_hw_params_any(&params);
855 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
856 {
857 if (pHwParams->ulSampleRate >= rates[i] &&
858 pHwParams->ulSampleRate <= rates[i+1])
859 {
860 pHwParams->ulSampleRate = rates[i];
861 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
862 pHwParams->ulSampleRate, 0);
863 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
864 if(ret == 0)
865 {
866 _snd_pcm_hw_params_any(&params);
867 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
868 pHwParams->ulBitsPerSample, 0);
869 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
870 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
871 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
872 OSSToALSADataType[pHwParams->ulDataType], 0);
873 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
874 pHwParams->ulNumChannels, 0);
875 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
876 pHwParams->ulSampleRate, 0);
877 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
878 goto __next;
879 }
880 }
881 }
882// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
883 DebugInt3();
884 return UNIXToOSSError(ret);
885 }
886__next:
887
888 printk("sample rate: %i\n",pHwParams->ulSampleRate);
889
890 //check period size against lower and upper boundaries
891 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
892 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
893 if(periodbytes < minperiodbytes) {
894 periodbytes = minperiodbytes;
895 }
896 else
897 if(periodbytes > maxperiodbytes) {
898 periodbytes = maxperiodbytes;
899 }
900
901 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
902 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
903 if(periodsize < minperiodsize) {
904 periodsize = minperiodsize;
905 }
906 else
907 if(periodsize > maxperiodsize) {
908 periodsize = maxperiodsize;
909 }
910
911 if(samples_to_bytes(periodsize) < periodbytes) {
912 periodbytes = samples_to_bytes(periodsize);
913 }
914 else
915 if(bytes_to_samples(periodbytes) < periodsize) {
916 periodsize = bytes_to_samples(periodbytes);
917 }
918
919 //make sure period size is a whole fraction of the buffer size
920 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
921 if(periodsize) {
922 nrperiods = bufsize/periodbytes;
923 }
924 else {
925 printk("OSS32_WaveSetHwParams error. Invalid periodsize (=0). closing file\n");
926// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
927 DebugInt3();
928 return OSSERR_INVALID_PARAMETER;
929 }
930 //check nr of periods against lower and upper boundaries
931 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
932 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
933 if(nrperiods < minnrperiods) {
934 nrperiods = minnrperiods;
935 }
936 else
937 if(nrperiods > maxnrperiods) {
938 nrperiods = maxnrperiods;
939 }
940 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
941 //so we make sure it's an even number.
942 if(nrperiods == 1) {
943 DebugInt3();
944 printk("OSS32_WaveSetHwParams error. Invalid number of periods(=1). closing file\n");
945// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
946 return OSSERR_INVALID_PARAMETER;
947 }
948 nrperiods &= ~1;
949
950 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
951 //period size and buffer size
952tryagain:
953 _snd_pcm_hw_params_any(&params);
954 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
955 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
956 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
957 pHwParams->ulBitsPerSample, 0);
958 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
959 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
960 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
961 OSSToALSADataType[pHwParams->ulDataType], 0);
962 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
963 pHwParams->ulNumChannels, 0);
964 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
965 pHwParams->ulSampleRate, 0);
966 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
967 periodsize, 0);
968 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
969 periodbytes, 0);
970 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
971 nrperiods, 0);
972 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
973 periodsize*nrperiods, 0);
974 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
975 periodbytes*nrperiods, 0);
976//#ifdef DEBUG_PK
977 printk("Hardware parameters: sample rate %i, data type %i, channels %i, period size %i, periods %i\n",
978 pHwParams->ulSampleRate, pHwParams->ulDataType, pHwParams->ulNumChannels, periodsize, nrperiods);
979//#endif
980 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
981 if (ret == -77 && fTryAgain == FALSE)
982 {
983 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
984 fTryAgain = TRUE;
985 goto tryagain;
986 }
987 if(ret) {
988 if(fTryAgain == FALSE) {
989 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
990 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
991 if(minperiodsize > maxperiodsize) {
992 //ALSA doesn't like the period size; try suggested one
993 periodsize = maxperiodsize;
994 periodbytes = samples_to_bytes(periodsize);
995 fTryAgain = TRUE;
996 goto tryagain;
997 }
998 }
999 printk("OSS32_WaveSetHwParams (second pass) error %i\n", ret);
1000 printk("bps: %i\n",pHwParams->ulBitsPerSample);
1001 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
1002 printk("channels: %i\n",pHwParams->ulNumChannels);
1003 printk("sample rate: %i\n",pHwParams->ulSampleRate);
1004 printk("periodsize: %i\n",periodsize);
1005 printk("periodbytes: %i\n",periodbytes);
1006 printk("periods: %i\n",nrperiods);
1007// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
1008 return UNIXToOSSError(ret);
1009 }
1010
1011 //set silence threshold (all sizes in frames) (only needed for playback)
1012 if(pHandle->file.f_mode == FMODE_WRITE)
1013 {
1014 swparams.avail_min = periodsize;
1015 swparams.period_step = 1;
1016 if(nrperiods <= 2) {
1017 swparams.silence_size = (periodsize/2);
1018 }
1019 else {
1020 swparams.silence_size = periodsize;
1021 }
1022 swparams.silence_threshold = swparams.silence_size;
1023 swparams.sleep_min = 0;
1024 swparams.start_threshold = 1;
1025 swparams.stop_threshold = periodsize*nrperiods;
1026 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1027 swparams.xfer_align = periodsize;
1028
1029 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1030 }
1031 total = 0;
1032 per_bytes = periodbytes;
1033 printk("OSS32_WaveSetHwParams return %d after SNDRV_PCM_IOCTL_SW_PARAMS ioctl, streamid %X", ret,(ULONG)pHandle);
1034 return UNIXToOSSError(ret);
1035}
1036
1037//******************************************************************************
1038//******************************************************************************
1039OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG buffer, ULONG size, ULONG *pTransferred, int pcm)
1040{
1041 soundhandle *pHandle = (soundhandle *)streamid;
1042 snd_pcm_status_t status;
1043 int ret, align, size1, ret1;
1044 LONG transferred;
1045 ULONG position;
1046 char *buf;
1047 int toret = 0;
1048
1049// return OSSERR_SUCCESS;
1050
1051 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1052 DebugInt3();
1053 return OSSERR_INVALID_STREAMID;
1054 }
1055 if(pTransferred == NULL || buffer == 0 || size == 0) {
1056 DebugInt3();
1057 return OSSERR_INVALID_PARAMETER;
1058 }
1059
1060 //set operation to non-blocking
1061 pHandle->file.f_flags = O_NONBLOCK;
1062
1063 //first check how much room is left in the circular dma buffer
1064 //this is done to make sure we don't block inside ALSA while trying to write
1065 //more data than fits in the internal dma buffer.
1066 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1067
1068 if(ret) {
1069 DebugInt3();
1070 return UNIXToOSSError(ret);
1071 }
1072
1073 size1 = size;
1074
1075 size = min(size, samples_to_bytes(status.avail));
1076 if (size1 != size)
1077 printk("requested size [%i] less then available [%s]\n", size1, size);
1078#if 0
1079 if (size < per_bytes)
1080 { /*HACK!!!*/
1081 printk("HACK avoid buffer overrun: requested buffer [%i] less than period [%i]. prev size: %i\n", size, per_bytes, prev_size);
1082 *pTransferred = size;
1083 prev_size = size;
1084 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1085 return OSSERR_SUCCESS;
1086 }
1087#endif
1088// size = per_bytes * (size / per_bytes);
1089
1090#ifdef DEBUG_PK
1091 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);
1092#endif
1093
1094 if(size == 0) {
1095#ifdef DEBUG_PK
1096 printk("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n");
1097 printk("state = %i\n",status.state);
1098 printk("avail = %i\n",status.avail);
1099 printk("size req = %i\n",size1);
1100#endif
1101 *pTransferred = 0;
1102 return OSSERR_BUFFER_FULL;
1103 }
1104
1105 transferred = 0;
1106 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1107 {
1108 case SNDRV_MINOR_PCM_PLAYBACK:
1109 // size should be aligned to channels number * samplesize
1110
1111 while(TRUE) {
1112 again:
1113 ret = pHandle->file.f_op->write(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1114 if(ret < 0) {
1115 // check EAGAIN
1116 if (ret == -EPIPE)
1117 {
1118 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1119// if (ret1 == 0) continue;
1120// printk("prepare rc %i\n",ret);
1121 }
1122
1123 if(transferred > 0) {
1124 printk("OSS32_WaveAddBuffer failed on partial transfer %x %i; ret = %i\n", buffer, size, ret);
1125 *pTransferred = transferred;
1126 return OSSERR_SUCCESS;
1127 }
1128
1129 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1130
1131 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1132 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1133 (status.state != SNDRV_PCM_STATE_DRAINING)) || ret == -32 ) {
1134 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1135 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);
1136 ret = size;
1137 transferred = size;
1138 break; /* UGLY hack*/
1139 //goto again;
1140 }
1141 else {
1142 printk("OSS32_WaveAddBuffer failed when SNDRV_MINOR_PCM_PLAYBACK. rc = %i\n",ret);
1143 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);
1144 printk("total = %i\n",total);
1145 printk("state = %i\n",status.state);
1146 printk("avail = %i\n",status.avail);
1147 printk("size req = %i\n",size1);
1148 DebugInt3();
1149 return UNIXToOSSError(transferred);
1150 }
1151 }
1152 if(ret == 0) {
1153 break;
1154 }
1155 transferred += ret;
1156// printk("written: now: %i, buffer: %i, total: %i\n", ret, transferred, total);
1157 buffer += ret;
1158 size -= ret;
1159 if(size <= 0) {
1160 break;
1161 }
1162 }
1163 break;
1164 case SNDRV_MINOR_PCM_CAPTURE:
1165 transferred = pHandle->file.f_op->read(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1166// printk("readed %i bytes\n", transferred);
1167 break;
1168 default:
1169 DebugInt3();
1170 return OSSERR_INVALID_PARAMETER;
1171 }
1172 if(ret < 0) {
1173 dprintf(("OSS32_WaveAddBuffer failed"));
1174 DebugInt3();
1175 return UNIXToOSSError(transferred);
1176 }
1177
1178 total+=transferred;
1179 *pTransferred = transferred;
1180 prev_size = transferred;
1181 if (transferred < size)
1182 {
1183 printk("warning: transferred [%i] less than requested [%i]\n", transferred, size);
1184 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1185 }
1186
1187 return OSSERR_SUCCESS;
1188}
1189//******************************************************************************
1190//******************************************************************************
1191OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1192{
1193 soundhandle *pHandle = (soundhandle *)streamid;
1194 snd_pcm_status_t status;
1195 int ret;
1196 ULONG delta;
1197
1198 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1199 DebugInt3();
1200 return OSSERR_INVALID_STREAMID;
1201 }
1202 if(pPosition == NULL) {
1203 DebugInt3();
1204 return OSSERR_INVALID_PARAMETER;
1205 }
1206
1207 //set operation to non-blocking
1208 pHandle->file.f_flags = O_NONBLOCK;
1209
1210 //Get the status of the stream
1211 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1212
1213 if(ret) {
1214 DebugInt3();
1215 return UNIXToOSSError(ret);
1216 }
1217
1218 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1219 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1220 return OSSERR_SUCCESS;
1221}
1222//******************************************************************************
1223//******************************************************************************
1224OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1225{
1226 soundhandle *pHandle = (soundhandle *)streamid;
1227 snd_pcm_status_t status;
1228 int ret;
1229
1230 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1231 DebugInt3();
1232 return OSSERR_INVALID_STREAMID;
1233 }
1234 if(pBytesAvail == NULL) {
1235 DebugInt3();
1236 return OSSERR_INVALID_PARAMETER;
1237 }
1238
1239 //set operation to non-blocking
1240 pHandle->file.f_flags = O_NONBLOCK;
1241
1242 //Get the nr of bytes left in the audio buffer
1243 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1244
1245 if(ret) {
1246 DebugInt3();
1247 return UNIXToOSSError(ret);
1248 }
1249 *pBytesAvail = samples_to_bytes(status.avail);
1250 return OSSERR_SUCCESS;
1251}
1252//******************************************************************************
1253//******************************************************************************
1254OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1255{
1256 soundhandle *pHandle = (soundhandle *)streamid;
1257 int ret;
1258 int leftvol, rightvol;
1259 snd_pcm_volume_t pcm_volume;
1260
1261 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1262 DebugInt3();
1263 return OSSERR_INVALID_STREAMID;
1264 }
1265 //set operation to non-blocking
1266 pHandle->file.f_flags = O_NONBLOCK;
1267
1268 leftvol = GET_VOLUME_L(volume);
1269 rightvol = GET_VOLUME_R(volume);
1270
1271 pcm_volume.nrchannels = 4;
1272 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1273 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1274 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1275 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1276
1277 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1278 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1279 return UNIXToOSSError(ret);
1280}
1281//******************************************************************************
1282//******************************************************************************
1283
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