source: GPL/trunk/lib32/sound.c@ 84

Last change on this file since 84 was 84, checked in by vladest, 19 years ago

SB code update
HDA code update
Some other updates
File size: 52.3 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_status_t status;
757 snd_pcm_sw_params_t swparams;
758 int ret, ret1, nrperiods, minnrperiods, maxnrperiods, samplesize, i;
759 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
760 ULONG periodbytes, minperiodbytes, maxperiodbytes;
761 BOOL fTryAgain = FALSE;
762 ULONG ulMinRate, ulMaxRate;
763
764#ifdef DEBUG
765 dprintf(("OSS32_WaveSetHwParams"));
766#endif
767 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
768 printk("OSS32_WaveSetHwParams error. Invalid handle\n");
769 DebugInt3();
770 return OSSERR_INVALID_STREAMID;
771 }
772 if(pHwParams == NULL) {
773 printk("OSS32_WaveSetHwParams error. params = NULL\n");
774 DebugInt3();
775 return OSSERR_INVALID_PARAMETER;
776 }
777 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
778 printk("OSS32_WaveSetHwParams error. Too high PCM format\n");
779 DebugInt3();
780 return OSSERR_INVALID_PARAMETER;
781 }
782 if ((int)pHwParams->ulNumChannels <= 0) {
783 printk("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels);
784 DebugInt3();
785 return OSSERR_INVALID_PARAMETER;
786 }
787tryagain:
788 //set operation to non-blocking
789 pHandle->file.f_flags = O_NONBLOCK;
790 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
791 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
792 pHandle->doublesamplesize = samplesize * 2;
793 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
794 periodbytes = pHwParams->ulPeriodSize;
795 periodsize = bytes_to_samples(periodbytes);
796 // checking number of channels
797
798 printk("channels: %i, period size: %i\n",pHwParams->ulNumChannels, periodbytes);
799 _snd_pcm_hw_params_any(&params);
800 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
801 ulMinRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->min;
802 ulMaxRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->max;
803
804 _snd_pcm_hw_params_any(&params);
805 do {
806 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
807 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
808 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
809 pHwParams->ulNumChannels, 0);
810 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
811 if (ret == 0) break;
812 pHwParams->ulNumChannels--;
813 } while(ret < 0 && pHwParams->ulNumChannels > 1);
814
815 printk("channels selected: %i\n",pHwParams->ulNumChannels);
816
817 //get all hardware parameters
818 _snd_pcm_hw_params_any(&params);
819 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
820 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
821 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
822 OSSToALSADataType[pHwParams->ulDataType], 0);
823 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
824 if(ret != 0) {
825 printk("invalid format %i\n", OSSToALSADataType[pHwParams->ulDataType]);
826 return UNIXToOSSError(ret);
827 }
828 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
829 pHwParams->ulBitsPerSample, 0);
830 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
831 if(ret != 0) {
832 printk("invalid number of sample bits %i\n", pHwParams->ulBitsPerSample);
833 return UNIXToOSSError(ret);
834 }
835 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
836 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
837 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
838 if(ret != 0) {
839 printk("invalid number of frame bits %i\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels);
840 return UNIXToOSSError(ret);
841 }
842
843 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
844 pHwParams->ulBitsPerSample, 0);
845 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
846 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
847 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
848 OSSToALSADataType[pHwParams->ulDataType], 0);
849 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
850 pHwParams->ulNumChannels, 0);
851 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
852 pHwParams->ulSampleRate, 0);
853
854 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
855 if(ret != 0) {
856 printk("OSS32_WaveSetHwParams (first pass) error %i\n", ret);
857 printk("bps: %i\n",pHwParams->ulBitsPerSample);
858 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
859 printk("channels: %i\n",pHwParams->ulNumChannels);
860 printk("sample rate: %i\n",pHwParams->ulSampleRate);
861
862// printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
863 // printk("will set to nearest\n");
864 _snd_pcm_hw_params_any(&params);
865 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
866 {
867 if (pHwParams->ulSampleRate >= rates[i] &&
868 pHwParams->ulSampleRate <= rates[i+1])
869 {
870 pHwParams->ulSampleRate = rates[i];
871 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
872 pHwParams->ulSampleRate, 0);
873 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
874 if(ret == 0)
875 {
876 _snd_pcm_hw_params_any(&params);
877 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
878 pHwParams->ulBitsPerSample, 0);
879 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
880 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
881 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
882 OSSToALSADataType[pHwParams->ulDataType], 0);
883 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
884 pHwParams->ulNumChannels, 0);
885 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
886 pHwParams->ulSampleRate, 0);
887 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
888 goto __next;
889 }
890 }
891 }
892
893// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
894 DebugInt3();
895 return UNIXToOSSError(ret);
896 }
897__next:
898
899 printk("sample rate: %i\n",pHwParams->ulSampleRate);
900
901 //check period size against lower and upper boundaries
902 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
903 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
904 if(periodbytes < minperiodbytes) {
905 periodbytes = minperiodbytes;
906 }
907 else
908 if(periodbytes > maxperiodbytes) {
909 periodbytes = maxperiodbytes;
910 }
911
912 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
913 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
914 if(periodsize < minperiodsize) {
915 periodsize = minperiodsize;
916 }
917 else
918 if(periodsize > maxperiodsize) {
919 periodsize = maxperiodsize;
920 }
921
922 if(samples_to_bytes(periodsize) < periodbytes) {
923 periodbytes = samples_to_bytes(periodsize);
924 }
925 else
926 if(bytes_to_samples(periodbytes) < periodsize) {
927 periodsize = bytes_to_samples(periodbytes);
928 }
929
930 //make sure period size is a whole fraction of the buffer size
931 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
932 if(periodsize) {
933 nrperiods = bufsize/periodbytes;
934 }
935 else {
936 printk("OSS32_WaveSetHwParams error. Invalid periodsize (=0). closing file\n");
937// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
938 DebugInt3();
939 return OSSERR_INVALID_PARAMETER;
940 }
941 //check nr of periods against lower and upper boundaries
942 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
943 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
944 if(nrperiods < minnrperiods) {
945 nrperiods = minnrperiods;
946 }
947 else
948 if(nrperiods > maxnrperiods) {
949 nrperiods = maxnrperiods;
950 }
951 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
952 //so we make sure it's an even number.
953 if(nrperiods == 1) {
954 DebugInt3();
955 printk("OSS32_WaveSetHwParams error. Invalid number of periods(=1). closing file\n");
956// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
957 return OSSERR_INVALID_PARAMETER;
958 }
959 nrperiods &= ~1;
960
961 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
962 //period size and buffer size
963//tryagain:
964 _snd_pcm_hw_params_any(&params);
965 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
966 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
967 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
968 pHwParams->ulBitsPerSample, 0);
969 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
970 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
971 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
972 OSSToALSADataType[pHwParams->ulDataType], 0);
973 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
974 pHwParams->ulNumChannels, 0);
975 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
976 pHwParams->ulSampleRate, 0);
977 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
978 periodsize, 0);
979 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
980 periodbytes, 0);
981 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
982 nrperiods, 0);
983 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
984 periodsize*nrperiods, 0);
985 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
986 periodbytes*nrperiods, 0);
987//#ifdef DEBUG_PK
988 printk("Hardware parameters: sample rate %i, data type %i, channels %i, period size %i, periods %i\n",
989 pHwParams->ulSampleRate, pHwParams->ulDataType, pHwParams->ulNumChannels, periodsize, nrperiods);
990//#endif
991 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
992 if (ret == -77 && fTryAgain == FALSE)
993 {
994 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
995 fTryAgain = TRUE;
996 goto tryagain;
997 }
998 if(ret) {
999 if(fTryAgain == FALSE) {
1000 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
1001 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1002 if(minperiodsize > maxperiodsize) {
1003 //ALSA doesn't like the period size; try suggested one
1004 periodsize = maxperiodsize;
1005 periodbytes = samples_to_bytes(periodsize);
1006 fTryAgain = TRUE;
1007 goto tryagain;
1008 }
1009 }
1010 printk("OSS32_WaveSetHwParams (second pass) error %i\n", ret);
1011 printk("bps: %i\n",pHwParams->ulBitsPerSample);
1012 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
1013 printk("channels: %i\n",pHwParams->ulNumChannels);
1014 printk("sample rate: %i\n",pHwParams->ulSampleRate);
1015 printk("periodsize: %i\n",periodsize);
1016 printk("periodbytes: %i\n",periodbytes);
1017 printk("periods: %i\n",nrperiods);
1018// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
1019 return UNIXToOSSError(ret);
1020 }
1021
1022 //set silence threshold (all sizes in frames) (only needed for playback)
1023 if(pHandle->file.f_mode == FMODE_WRITE)
1024 {
1025 swparams.avail_min = periodsize;
1026 swparams.period_step = 1;
1027 if(nrperiods <= 2) {
1028 swparams.silence_size = (periodsize/2);
1029 }
1030 else {
1031 swparams.silence_size = periodsize;
1032 }
1033 swparams.silence_threshold = swparams.silence_size;
1034 swparams.sleep_min = 0;
1035 swparams.start_threshold = 1;
1036 swparams.stop_threshold = periodsize*nrperiods;
1037 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1038 swparams.xfer_align = periodsize;
1039
1040 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1041 }
1042 total = 0;
1043 per_bytes = periodbytes;
1044 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1045 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1046 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1047 (status.state != SNDRV_PCM_STATE_DRAINING))) {
1048 printk("Device is not in proper state: %i. Calling prepare\n", status.state);
1049 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1050 }
1051 printk("OSS32_WaveSetHwParams return %d after SNDRV_PCM_IOCTL_SW_PARAMS ioctl, streamid %X", ret,(ULONG)pHandle);
1052 return UNIXToOSSError(ret);
1053}
1054
1055//******************************************************************************
1056//******************************************************************************
1057OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG buffer, ULONG size, ULONG *pTransferred, int pcm)
1058{
1059 soundhandle *pHandle = (soundhandle *)streamid;
1060 snd_pcm_status_t status;
1061 int ret, align, size1, ret1;
1062 LONG transferred;
1063 ULONG position;
1064 char *buf;
1065 int toret = 0;
1066
1067// return OSSERR_SUCCESS;
1068
1069 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1070 DebugInt3();
1071 return OSSERR_INVALID_STREAMID;
1072 }
1073 if(pTransferred == NULL || buffer == 0 || size == 0) {
1074 DebugInt3();
1075 return OSSERR_INVALID_PARAMETER;
1076 }
1077
1078 //set operation to non-blocking
1079 pHandle->file.f_flags = O_NONBLOCK;
1080
1081 //first check how much room is left in the circular dma buffer
1082 //this is done to make sure we don't block inside ALSA while trying to write
1083 //more data than fits in the internal dma buffer.
1084 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1085
1086 if(ret) {
1087 DebugInt3();
1088 return UNIXToOSSError(ret);
1089 }
1090
1091 size1 = size;
1092
1093 size = min(size, samples_to_bytes(status.avail));
1094 if (size1 != size)
1095 printk("requested size [%i] less then available [%s]\n", size1, size);
1096#if 0
1097 if (size < per_bytes)
1098 { /*HACK!!!*/
1099 printk("HACK avoid buffer overrun: requested buffer [%i] less than period [%i]. prev size: %i\n", size, per_bytes, prev_size);
1100 *pTransferred = size;
1101 prev_size = size;
1102 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1103 return OSSERR_SUCCESS;
1104 }
1105#endif
1106// size = per_bytes * (size / per_bytes);
1107
1108#ifdef DEBUG_PK
1109 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);
1110#endif
1111
1112 if(size == 0) {
1113#ifdef DEBUG_PK
1114 printk("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n");
1115 printk("state = %i\n",status.state);
1116 printk("avail = %i\n",status.avail);
1117 printk("size req = %i\n",size1);
1118#endif
1119 *pTransferred = 0;
1120 return OSSERR_BUFFER_FULL;
1121 }
1122
1123 transferred = 0;
1124 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1125 {
1126 case SNDRV_MINOR_PCM_PLAYBACK:
1127 // size should be aligned to channels number * samplesize
1128
1129 while(TRUE) {
1130 again:
1131 ret = pHandle->file.f_op->write(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1132 if(ret < 0) {
1133 // check EAGAIN
1134 if (ret == -EPIPE)
1135 {
1136 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1137// if (ret1 == 0) continue;
1138// printk("prepare rc %i\n",ret);
1139 }
1140
1141 if(transferred > 0) {
1142 printk("OSS32_WaveAddBuffer failed on partial transfer %x %i; ret = %i\n", buffer, size, ret);
1143 *pTransferred = transferred;
1144 if (toret)
1145 return OSSERR_SUCCESS; /* avoid infinite loop */
1146 toret = 1;
1147 goto again;
1148 }
1149
1150 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1151
1152 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1153 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1154 (status.state != SNDRV_PCM_STATE_DRAINING)) || ret == -32 ) {
1155 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1156 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);
1157 //ret = size;
1158 //transferred = size;
1159 if (toret) break; /* avoid infinite loop */
1160 toret = 1;
1161 goto again;
1162 }
1163 else {
1164 printk("OSS32_WaveAddBuffer failed when SNDRV_MINOR_PCM_PLAYBACK. rc = %i\n",ret);
1165 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);
1166 printk("total = %i\n",total);
1167 printk("state = %i\n",status.state);
1168 printk("avail = %i\n",status.avail);
1169 printk("size req = %i\n",size1);
1170 DebugInt3();
1171 return UNIXToOSSError(transferred);
1172 }
1173 }
1174 if(ret == 0) {
1175 break;
1176 }
1177 toret = 0;
1178 transferred += ret;
1179// printk("written: now: %i, buffer: %i, total: %i\n", ret, transferred, total);
1180 buffer += ret;
1181 size -= ret;
1182 if((int)size <= 0) {
1183 break;
1184 }
1185 }
1186 break;
1187 case SNDRV_MINOR_PCM_CAPTURE:
1188 transferred = pHandle->file.f_op->read(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1189// printk("readed %i bytes\n", transferred);
1190 break;
1191 default:
1192 DebugInt3();
1193 return OSSERR_INVALID_PARAMETER;
1194 }
1195 if(ret < 0) {
1196 dprintf(("OSS32_WaveAddBuffer failed"));
1197 DebugInt3();
1198 return UNIXToOSSError(transferred);
1199 }
1200
1201 total+=transferred;
1202 *pTransferred = transferred;
1203 prev_size = transferred;
1204 if (transferred < size)
1205 {
1206 printk("warning: transferred [%i] less than requested [%i]\n", transferred, size);
1207 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1208 }
1209
1210 return OSSERR_SUCCESS;
1211}
1212//******************************************************************************
1213//******************************************************************************
1214OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1215{
1216 soundhandle *pHandle = (soundhandle *)streamid;
1217 snd_pcm_status_t status;
1218 int ret;
1219 ULONG delta;
1220
1221 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1222 DebugInt3();
1223 return OSSERR_INVALID_STREAMID;
1224 }
1225 if(pPosition == NULL) {
1226 DebugInt3();
1227 return OSSERR_INVALID_PARAMETER;
1228 }
1229
1230 //set operation to non-blocking
1231 pHandle->file.f_flags = O_NONBLOCK;
1232
1233 //Get the status of the stream
1234 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1235
1236 if(ret) {
1237 DebugInt3();
1238 return UNIXToOSSError(ret);
1239 }
1240
1241 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1242 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1243 return OSSERR_SUCCESS;
1244}
1245//******************************************************************************
1246//******************************************************************************
1247OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1248{
1249 soundhandle *pHandle = (soundhandle *)streamid;
1250 snd_pcm_status_t status;
1251 int ret;
1252
1253 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1254 DebugInt3();
1255 return OSSERR_INVALID_STREAMID;
1256 }
1257 if(pBytesAvail == NULL) {
1258 DebugInt3();
1259 return OSSERR_INVALID_PARAMETER;
1260 }
1261
1262 //set operation to non-blocking
1263 pHandle->file.f_flags = O_NONBLOCK;
1264
1265 //Get the nr of bytes left in the audio buffer
1266 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1267
1268 if(ret) {
1269 DebugInt3();
1270 return UNIXToOSSError(ret);
1271 }
1272 *pBytesAvail = samples_to_bytes(status.avail);
1273 return OSSERR_SUCCESS;
1274}
1275//******************************************************************************
1276//******************************************************************************
1277OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1278{
1279 soundhandle *pHandle = (soundhandle *)streamid;
1280 int ret;
1281 int leftvol, rightvol;
1282 struct snd_pcm_volume pcm_volume;
1283
1284 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1285 DebugInt3();
1286 return OSSERR_INVALID_STREAMID;
1287 }
1288 //set operation to non-blocking
1289 pHandle->file.f_flags = O_NONBLOCK;
1290
1291 leftvol = GET_VOLUME_L(volume);
1292 rightvol = GET_VOLUME_R(volume);
1293
1294 pcm_volume.nrchannels = 4;
1295 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1296 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1297 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1298 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1299
1300 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1301 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1302 return UNIXToOSSError(ret);
1303}
1304//******************************************************************************
1305//******************************************************************************
1306
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