source: GPL/branches/uniaud32-next/lib32/sound.c@ 672

Last change on this file since 672 was 672, checked in by Paul Smedley, 5 years ago

Don't call snd_device_free() when closing a pcm stream on OS/2, remove workaround for HDA hardware from lib32/sound.c
File size: 49.1 KB
Line 
1/*
2 * MMPM/2 to OSS interface translation layer
3 *
4 * (C) 2000-2002 InnoTek Systemberatung GmbH
5 * (C) 2000-2001 Sander van Leeuwen (sandervl@xs4all.nl)
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public
18 * License along with this program; if not, write to the Free
19 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
20 * USA.
21 *
22 */
23
24#include <sound/core.h>
25#include <sound/control.h>
26#include <sound/info.h>
27#include <sound/pcm.h>
28#include <sound/pcm_params.h>
29#include <sound/minors.h>
30#include <linux/file.h>
31#include <linux/soundcard.h>
32
33#define LINUX
34#include <ossidc32.h>
35#include <osspci.h>
36#include <stacktoflat.h>
37#include <stdlib.h>
38#include <proto.h>
39//#include <dbgos2.h>
40#include "soundoss.h"
41
42#undef samples_to_bytes
43#undef bytes_to_samples
44#define samples_to_bytes(a) ((a*pHandle->doublesamplesize)/2)
45#define bytes_to_samples(a) (pHandle->doublesamplesize ? ((a*2)/pHandle->doublesamplesize) : a)
46int GetMaxChannels(ULONG deviceid, int type);
47
48struct file_operations oss_devices[OSS32_MAX_DEVICES] = {0};
49const struct file_operations *alsa_fops = NULL;
50int per_bytes = 0;
51int prev_size = 0;
52int pcm_device = 0;
53int total = 0;
54// int pcm_instances = 0; //PS+++ !!!!!!! what is it!!!! see pcm.lib
55
56OpenedHandles opened_handles[8 * 256] = {0};
57
58//OSS32 to ALSA datatype conversion table
59static int OSSToALSADataType[OSS32_PCM_MAX_FORMATS] = {
60/* OSS32_PCM_FORMAT_S8 */ SNDRV_PCM_FORMAT_S8, //signed 8 bits sample
61/* OSS32_PCM_FORMAT_U8 */ SNDRV_PCM_FORMAT_U8, //unsigned 8 bits sample
62/* OSS32_PCM_FORMAT_S16_LE */ SNDRV_PCM_FORMAT_S16_LE, //signed 16 bits sample (little endian/Intel)
63/* OSS32_PCM_FORMAT_S16_BE */ SNDRV_PCM_FORMAT_S16_BE, //signed 16 bits sample (big endian/Motorola)
64/* OSS32_PCM_FORMAT_U16_LE */ SNDRV_PCM_FORMAT_U16_LE, //unsigned 16 bits sample (little endian/Intel)
65/* OSS32_PCM_FORMAT_U16_BE */ SNDRV_PCM_FORMAT_U16_BE, //unsigned 16 bits sample (big endian/Motorola)
66/* OSS32_PCM_FORMAT_S24_LE */ SNDRV_PCM_FORMAT_S24_LE, //signed 24 bits sample (little endian/Intel)
67/* OSS32_PCM_FORMAT_S24_BE */ SNDRV_PCM_FORMAT_S24_BE, //signed 24 bits sample (big endian/Motorola)
68/* OSS32_PCM_FORMAT_U24_LE */ SNDRV_PCM_FORMAT_U24_LE, //unsigned 24 bits sample (little endian/Intel)
69/* OSS32_PCM_FORMAT_U24_BE */ SNDRV_PCM_FORMAT_U24_BE, //unsigned 24 bits sample (big endian/Motorola)
70/* OSS32_PCM_FORMAT_S32_LE */ SNDRV_PCM_FORMAT_S32_LE, //signed 32 bits sample (little endian/Intel)
71/* OSS32_PCM_FORMAT_S32_BE */ SNDRV_PCM_FORMAT_S32_BE, //signed 32 bits sample (big endian/Motorola)
72/* OSS32_PCM_FORMAT_U32_LE */ SNDRV_PCM_FORMAT_U32_LE, //unsigned 32 bits sample (little endian/Intel)
73/* OSS32_PCM_FORMAT_U32_BE */ SNDRV_PCM_FORMAT_U32_BE, //unsigned 32 bits sample (big endian/Motorola)
74/* OSS32_PCM_FORMAT_MULAW */ SNDRV_PCM_FORMAT_MU_LAW, //8 bps (compressed 16 bits sample)
75/* OSS32_PCM_FORMAT_ALAW */ SNDRV_PCM_FORMAT_A_LAW, //8 bps (compressed 16 bits sample)
76/* OSS32_PCM_FORMAT_ADPCM */ SNDRV_PCM_FORMAT_IMA_ADPCM, //4 bps (compressed 16 bits sample)
77/* OSS32_PCM_FORMAT_MPEG */ SNDRV_PCM_FORMAT_MPEG, //AC3?
78};
79
80//******************************************************************************
81//******************************************************************************
82int register_chrdev(unsigned int version, const char *name, const 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 char szMixerName[64];
258 char szDeviceName[128];
259 OSS32_QueryNames(OSS32_DEFAULT_DEVICE, szDeviceName,
260 sizeof(szDeviceName),szMixerName,
261 sizeof(szMixerName), TRUE);
262 if (strncmp(szDeviceName,"HDA",3) != 0){
263 /* non-HDA audio - support 5512 - 32000 Hz sample rates */
264 if(fuRates & SNDRV_PCM_RATE_5512) {
265 fuOSSRates |= OSS32_CAPS_PCM_RATE_5512;
266 }
267 if(fuRates & SNDRV_PCM_RATE_8000) {
268 fuOSSRates |= OSS32_CAPS_PCM_RATE_8000;
269 }
270 if(fuRates & SNDRV_PCM_RATE_11025) {
271 fuOSSRates |= OSS32_CAPS_PCM_RATE_11025;
272 }
273 if(fuRates & SNDRV_PCM_RATE_16000) {
274 fuOSSRates |= OSS32_CAPS_PCM_RATE_16000;
275 }
276 if(fuRates & SNDRV_PCM_RATE_22050) {
277 fuOSSRates |= OSS32_CAPS_PCM_RATE_22050;
278 }
279 if(fuRates & SNDRV_PCM_RATE_32000) {
280 fuOSSRates |= OSS32_CAPS_PCM_RATE_32000;
281 }
282 } else {
283 dprintf(("HDA audio detected - don't support 5512 - 32000 Hz audio sample rates\n"));
284 }
285 if(fuRates & SNDRV_PCM_RATE_44100) {
286 fuOSSRates |= OSS32_CAPS_PCM_RATE_44100;
287 }
288 if(fuRates & SNDRV_PCM_RATE_48000) {
289 fuOSSRates |= OSS32_CAPS_PCM_RATE_48000;
290 }
291#if 0
292 if(fuRates & SNDRV_PCM_RATE_64000) {
293 fuOSSRates |= OSS32_CAPS_PCM_RATE_64000;
294 }
295 if(fuRates & SNDRV_PCM_RATE_88200) {
296 fuOSSRates |= OSS32_CAPS_PCM_RATE_88200;
297 }
298 if(fuRates & SNDRV_PCM_RATE_96000) {
299 fuOSSRates |= OSS32_CAPS_PCM_RATE_96000;
300 }
301 if(fuRates & SNDRV_PCM_RATE_176400) {
302 fuOSSRates |= OSS32_CAPS_PCM_RATE_176400;
303 }
304 if(fuRates & SNDRV_PCM_RATE_192000) {
305 fuOSSRates |= OSS32_CAPS_PCM_RATE_192000;
306 }
307#endif
308 if(fuRates & SNDRV_PCM_RATE_CONTINUOUS) {
309 fuOSSRates |= OSS32_CAPS_PCM_RATE_CONTINUOUS;
310 }
311
312 //TODO:
313 if(fuRates & SNDRV_PCM_RATE_KNOT) {
314 DebugInt3();
315 }
316//#define OSS32_CAPS_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */
317
318 return fuOSSRates;
319}
320//******************************************************************************
321//******************************************************************************
322OSSRET OSS32_QueryDevCaps(ULONG deviceid, POSS32_DEVCAPS pDevCaps)
323{
324 OSSSTREAMID streamid = 0;
325 soundhandle *pHandle;
326 struct snd_pcm_info *pcminfo = NULL;
327 struct snd_pcm_hw_params *params;
328 int ret, fmt, i;
329 ULONG format_mask;
330 struct snd_mask *mask;
331 //int max_ch;
332
333 dprintf(("OSS32_QueryDevCaps"));
334// max_ch = GetMaxChannels(deviceid, OSS32_CAPS_WAVE_PLAYBACK);
335
336 //these structures are too big to put on the stack
337 pcminfo = (struct snd_pcm_info *)kmalloc(sizeof(struct snd_pcm_info)+sizeof(struct snd_pcm_hw_params), GFP_KERNEL);
338 if(pcminfo == NULL) {
339 DebugInt3();
340 rprintf(("OSS32_QueryDevCaps: out of memory\n"));
341 return OSSERR_OUT_OF_MEMORY;
342 }
343 params = (struct snd_pcm_hw_params *)(pcminfo+1);
344
345 dprintf(("Number of cards=%i dev id=%i", nrCardsDetected, deviceid));
346 pDevCaps->nrDevices = 1;//nrCardsDetected;
347// pDevCaps->nrDevices = nrCardsDetected;
348 pDevCaps->ulCaps = OSS32_CAPS_WAVE_PLAYBACK | OSS32_CAPS_WAVE_CAPTURE;
349
350 //query wave in & out caps
351 for(i=0;i<2;i++)
352 {
353 PWAVE_CAPS pWaveCaps = (i == 0) ? &pDevCaps->waveOutCaps : &pDevCaps->waveInCaps;
354
355 ret = OSS32_WaveOpen(deviceid, (i == 0) ? OSS32_STREAM_WAVEOUT : OSS32_STREAM_WAVEIN, &streamid, 0, 0);
356 if(ret != OSSERR_SUCCESS)
357 {
358 rprintf(("OSS32_QueryDevCaps: wave open error %i\n", ret));
359 DebugInt3();
360 goto fail;
361 }
362 pHandle = (soundhandle *)streamid;
363 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
364 rprintf(("OSS32_QueryDevCaps: invalid stream id \n"));
365 ret = OSSERR_INVALID_STREAMID;
366 goto fail;
367 }
368 //set operation to non-blocking
369 pHandle->file.f_flags = O_NONBLOCK;
370
371 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_INFO, (ULONG)pcminfo);
372 if(ret != 0) {
373 rprintf(("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_INFO error %i\n", ret));
374 ret = UNIXToOSSError(ret);
375 goto fail;
376 }
377 if(i == 0) {//only need to do this once
378 if(pcminfo->name[0]) {
379 strncpy(pDevCaps->szDeviceName, pcminfo->name, sizeof(pDevCaps->szDeviceName));
380 }
381 else strncpy(pDevCaps->szDeviceName, pcminfo->id, sizeof(pDevCaps->szDeviceName));
382 }
383 dprintf(("Device name: %s", pDevCaps->szDeviceName));
384 pWaveCaps->nrStreams = pcminfo->subdevices_count;
385
386 //get all hardware parameters
387 _snd_pcm_hw_params_any(params);
388 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)params);
389 if(ret != 0) {
390 rprintf(("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_HW_REFINE error %i\n", ret));
391 ret = UNIXToOSSError(ret);
392 goto fail;
393 }
394
395 pWaveCaps->ulMinChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min;
396 pWaveCaps->ulMaxChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;
397 pWaveCaps->ulChanFlags = 0;
398 if(pWaveCaps->ulMinChannels == 1) {
399 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_MONO;
400 }
401 if(pWaveCaps->ulMaxChannels >= 2) {
402 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_STEREO;
403 }
404 if(pWaveCaps->ulMaxChannels >= 4) {
405 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_QUAD;
406 }
407 if(pWaveCaps->ulMaxChannels >= 6) {
408 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_5_1;
409 }
410
411 pWaveCaps->ulMinRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min;
412 pWaveCaps->ulMaxRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max;
413
414 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_RATE_MASK);
415
416 pWaveCaps->ulRateFlags = mask->bits[0];
417
418 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
419
420 pWaveCaps->ulDataFormats = 0;
421
422 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
423 format_mask = mask->bits[0];
424 for(fmt=0;fmt<32;fmt++)
425 {
426 if(format_mask & (1 << fmt))
427 {
428 int f = ALSAToOSSDataType(fmt);
429 if (f >= 0)
430 pWaveCaps->ulDataFormats |= f;
431 }
432 }
433
434 OSS32_WaveClose(streamid);
435 streamid = 0;
436
437 }
438
439 //Check support for MPU401, FM & Wavetable MIDI
440 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
441 {
442 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
443 OSS32_MidiClose(streamid);
444 streamid = 0;
445 }
446 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
447 {
448 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
449 OSS32_MidiClose(streamid);
450 streamid = 0;
451 }
452 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
453 {
454 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
455 OSS32_MidiClose(streamid);
456 streamid = 0;
457 }
458 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
459 {
460 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
461 OSS32_MidiClose(streamid);
462 streamid = 0;
463 }
464
465 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
466 DebugInt3();
467 rprintf(("OSS32_QueryDevCaps: OSS32_MixQueryName error\n"));
468 goto fail;
469 }
470 dprintf(("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName));
471 kfree(pcminfo);
472 streamid = 0;
473
474
475 return OSSERR_SUCCESS;
476
477fail:
478 rprintf(("OSS32_QueryDevCaps failed\n"));
479 DebugInt3();
480 if(streamid) OSS32_WaveClose(streamid);
481 if(pcminfo) kfree(pcminfo);
482
483 return ret;
484}
485//******************************************************************************
486//******************************************************************************
487OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
488{
489 soundhandle *pHandle;
490 int ret,i;
491
492 if (pStreamId)
493 *pStreamId = 0;
494 else
495 {
496 rprintf(("ERROR: invalid stream id pointer\n"));
497 return OSSERR_OUT_OF_MEMORY;
498 }
499
500 if(alsa_fops == NULL) {
501 DebugInt3();
502 rprintf(("OSS32_WaveOpen: no devices"));
503
504 return OSSERR_NO_DEVICE_AVAILABLE;
505 }
506
507 //dprintf(("dev id: %i\n",deviceid));
508
509 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
510 if(pHandle == NULL) {
511 DebugInt3();
512 rprintf(("OSS32_WaveOpen: out of memory\n"));
513 return OSSERR_OUT_OF_MEMORY;
514 }
515 memset(pHandle, 0, sizeof(soundhandle));
516
517 //set operation to non-blocking
518 pHandle->file.f_flags = O_NONBLOCK;
519
520 //setup pointers in file structure (used internally by ALSA)
521 pHandle->file.f_dentry = &pHandle->d_entry;
522 pHandle->file.f_dentry->d_inode = &pHandle->inode;
523
524 switch(streamtype) {
525 case OSS32_STREAM_WAVEOUT:
526 pHandle->file.f_mode = FMODE_WRITE;
527 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
528 break;
529 case OSS32_STREAM_WAVEIN:
530 pHandle->file.f_mode = FMODE_READ;
531 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
532 break;
533 default:
534 DebugInt3();
535 kfree(pHandle);
536 rprintf(("OSS32_WaveOpen: invalid parameter\n"));
537 return OSSERR_INVALID_PARAMETER;
538 }
539
540 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
541
542 //dprintf(("OSS32_WaveOpen. ret: %i\n", ret));
543 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
544 if (ret == -16)
545 {
546 for (i=0; i < 8*256; i++)
547 {
548 if (opened_handles[i].handle != 0)
549 {
550 ret = 0;
551 if (pStreamId)
552 *pStreamId = (ULONG)opened_handles[i].handle;
553 opened_handles[i].reuse = 1; /* try to reuse */
554 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
555 {
556 if (!opened_handles[i].reuse)
557 {
558 //opened_handles[i].handle = 0;
559 kfree(opened_handles[i].handle); //free handle data
560 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
561 dprintf(("OSS32_WaveOpen. Reopen ret: %i\n", ret));
562 }
563 else
564 {
565 kfree(pHandle);
566 pHandle = opened_handles[i].handle;
567 }
568 break;
569 }
570 }
571 }
572 }
573 else if (ret == 0)
574 {
575 for (i=0; i < 8*256; i++)
576 {
577 if (opened_handles[i].handle == 0)
578 {
579 opened_handles[i].handle = pHandle;
580 opened_handles[i].FileId = fileid;
581 break;
582 }
583 }
584 }
585
586 if(ret) {
587 kfree(pHandle);
588 DebugInt3();
589 rprintf(("OSS32_WaveOpen: open error: %i\n",ret));
590 return UNIXToOSSError(ret);
591 }
592 pHandle->magic = MAGIC_WAVE_ALSA32;
593 if (pStreamId)
594 *pStreamId = (ULONG)pHandle;
595 // filling opened handles table
596 dprintf(("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle));
597 return OSSERR_SUCCESS;
598}
599//******************************************************************************
600//******************************************************************************
601
602OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
603{
604 soundhandle *pHandle = (soundhandle *)streamid;
605 int ret = 0, i;
606
607 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
608 DebugInt3();
609 rprintf(("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle));
610 return OSSERR_INVALID_STREAMID;
611 }
612
613 //set operation to non-blocking
614 pHandle->file.f_flags = O_NONBLOCK;
615
616 for (i=0; i < 8*256; i++)
617 {
618 if (opened_handles[i].handle == pHandle)
619 {
620 dprintf(("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse));
621 if (!opened_handles[i].reuse)
622 {
623 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
624 opened_handles[i].handle = 0;
625 kfree(pHandle); //free handle data
626 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
627 } else
628 {
629 /* prepare for reuse */
630 pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_RESET, 0);
631 pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
632 }
633 break;
634 }
635 }
636
637 if (i >= 8*256)
638 {
639 //all already closed
640 dprintf(("phandle %x not found\n", pHandle));
641// return OSSERR_SUCCESS;
642 }
643
644
645 if(ret) {
646 dprintf(("Error closing wave. rc = %i\n", ret));
647 DebugInt3();
648 return UNIXToOSSError(ret);
649 }
650 dprintf(("OSS32_WaveClose. streamid %X\n", (ULONG)pHandle));
651 return OSSERR_SUCCESS;
652}
653//******************************************************************************
654//******************************************************************************
655OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
656{
657 soundhandle *pHandle = (soundhandle *)streamid;
658 int ret;
659
660 dprintf(("OSS32_WavePrepare"));
661
662 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
663 DebugInt3();
664 rprintf(("vladest: OSS32_WavePrepare: invalid streamID\n"));
665
666 return OSSERR_INVALID_STREAMID;
667 }
668 //set operation to non-blocking
669 pHandle->file.f_flags = O_NONBLOCK;
670
671 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
672 if (ret)
673 rprintf(("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle));
674
675 return UNIXToOSSError(ret);;
676}
677//******************************************************************************
678//******************************************************************************
679OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
680{
681 soundhandle *pHandle = (soundhandle *)streamid;
682 int ret;
683
684 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
685 DebugInt3();
686 return OSSERR_INVALID_STREAMID;
687 }
688 //set operation to non-blocking
689 pHandle->file.f_flags = O_NONBLOCK;
690 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_START, 0);
691 if (ret)
692 rprintf(("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle));
693
694 return UNIXToOSSError(ret);;
695}
696//******************************************************************************
697//******************************************************************************
698OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
699{
700 soundhandle *pHandle = (soundhandle *)streamid;
701 int ret;
702
703 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
704 DebugInt3();
705 return OSSERR_INVALID_STREAMID;
706 }
707 //set operation to non-blocking
708 pHandle->file.f_flags = O_NONBLOCK;
709
710 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
711 if (ret)
712 rprintf(("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle));
713
714 return UNIXToOSSError(ret);;
715}
716//******************************************************************************
717//******************************************************************************
718OSSRET OSS32_WavePause(OSSSTREAMID streamid)
719{
720 soundhandle *pHandle = (soundhandle *)streamid;
721 int ret;
722
723 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
724 DebugInt3();
725 return OSSERR_INVALID_STREAMID;
726 }
727 //set operation to non-blocking
728 pHandle->file.f_flags = O_NONBLOCK;
729
730 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
731 if (ret)
732 rprintf(("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle));
733
734 return UNIXToOSSError(ret);;
735}
736//******************************************************************************
737//******************************************************************************
738OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
739{
740 soundhandle *pHandle = (soundhandle *)streamid;
741 int ret;
742
743 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
744 DebugInt3();
745 return OSSERR_INVALID_STREAMID;
746 }
747 //set operation to non-blocking
748 pHandle->file.f_flags = O_NONBLOCK;
749
750 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
751 if (ret)
752 rprintf(("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle));
753
754 return UNIXToOSSError(ret);;
755}
756
757static unsigned rates[] = {
758 /* ATTENTION: these values depend on the definition in pcm.h! */
759 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
760 64000, 88200, 96000, 176400, 192000
761};
762
763//******************************************************************************
764//******************************************************************************
765OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
766{
767 soundhandle *pHandle = (soundhandle *)streamid;
768 struct snd_pcm_hw_params params;
769 struct snd_pcm_sw_params swparams;
770 struct snd_pcm_status status;
771
772 int ret, nrperiods, minnrperiods, maxnrperiods, samplesize,i;
773 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
774 ULONG periodbytes, minperiodbytes, maxperiodbytes;
775 BOOL fTryAgain = FALSE;
776 //ULONG ulMinRate, ulMaxRate;
777
778 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
779
780 DebugInt3();
781 return OSSERR_INVALID_STREAMID;
782 }
783 if(pHwParams == NULL) {
784
785 DebugInt3();
786 return OSSERR_INVALID_PARAMETER;
787 }
788 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
789
790 DebugInt3();
791 return OSSERR_INVALID_PARAMETER;
792 }
793 if ((int)pHwParams->ulNumChannels <= 0) {
794 rprintf(("OSS32_WaveSetHwParams error. Invalid number of channels: %i\n", pHwParams->ulNumChannels));
795 DebugInt3();
796 return OSSERR_INVALID_PARAMETER;
797 }
798tryagain:
799 //set operation to non-blocking
800 pHandle->file.f_flags = O_NONBLOCK;
801
802 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
803 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
804 pHandle->doublesamplesize = samplesize * 2;
805 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
806 periodbytes = pHwParams->ulPeriodSize;
807 periodsize = bytes_to_samples(periodbytes);
808 // checking number of channels
809
810 dprintf(("channels: %ld, period size: %lx",pHwParams->ulNumChannels, periodbytes));
811
812 _snd_pcm_hw_params_any(&params);
813 do {
814 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
815 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
816 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
817 pHwParams->ulNumChannels, 0);
818 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)&params);
819 if (ret == 0) break;
820 pHwParams->ulNumChannels--;
821 } while(ret < 0 && pHwParams->ulNumChannels > 1);
822
823 dprintf(("channels selected: %d",pHwParams->ulNumChannels));
824
825 //get all hardware parameters
826 _snd_pcm_hw_params_any(&params);
827 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
828 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
829 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
830 OSSToALSADataType[pHwParams->ulDataType], 0);
831 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)&params);
832 if(ret != 0) {
833 rprintf(("invalid format %lx\n", OSSToALSADataType[pHwParams->ulDataType]));
834 return UNIXToOSSError(ret);
835 }
836 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
837 pHwParams->ulBitsPerSample, 0);
838 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)&params);
839 if(ret != 0) {
840 rprintf(("invalid number of sample bits %d\n", pHwParams->ulBitsPerSample));
841 return UNIXToOSSError(ret);
842 }
843 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
844 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
845 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)&params);
846 if(ret != 0) {
847 rprintf(("invalid number of frame bits %d\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels));
848 return UNIXToOSSError(ret);
849 }
850
851 //_snd_pcm_hw_params_any(&params);
852 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
853 pHwParams->ulBitsPerSample, 0);
854 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
855 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
856 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
857 OSSToALSADataType[pHwParams->ulDataType], 0);
858 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
859 pHwParams->ulNumChannels, 0);
860 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
861 pHwParams->ulSampleRate, 0);
862 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)&params);
863 if(ret != 0) {
864 rprintf(("32_WSetHwPms (first pass) error %d bps:%d fmt: %d ch: %d sr: %d\n",
865 ret,
866 pHwParams->ulBitsPerSample,
867 OSSToALSADataType[pHwParams->ulDataType],
868 pHwParams->ulNumChannels,
869 pHwParams->ulSampleRate));
870 //printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
871 // printk("will set to nearest\n");
872 _snd_pcm_hw_params_any(&params);
873 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
874 {
875 if (pHwParams->ulSampleRate >= rates[i] &&
876 pHwParams->ulSampleRate <= rates[i+1])
877 {
878 pHwParams->ulSampleRate = rates[i];
879 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
880 pHwParams->ulSampleRate, 0);
881 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)&params);
882 if(ret == 0)
883 {
884 _snd_pcm_hw_params_any(&params);
885 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
886 pHwParams->ulBitsPerSample, 0);
887 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
888 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
889 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
890 OSSToALSADataType[pHwParams->ulDataType], 0);
891 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
892 pHwParams->ulNumChannels, 0);
893 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
894 pHwParams->ulSampleRate, 0);
895 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)&params);
896 goto __next;
897 }
898 }
899 }
900 DebugInt3();
901 return UNIXToOSSError(ret);
902 }
903 __next:
904
905 //check period size against lower and upper boundaries
906 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
907 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
908 if(periodbytes < minperiodbytes) {
909 periodbytes = minperiodbytes;
910 }
911 else
912 if(periodbytes > maxperiodbytes) {
913 periodbytes = maxperiodbytes;
914 }
915
916 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
917 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
918 if(periodsize < minperiodsize) {
919 periodsize = minperiodsize;
920 }
921 else
922 if(periodsize > maxperiodsize) {
923 periodsize = maxperiodsize;
924 }
925
926 if(samples_to_bytes(periodsize) < periodbytes) {
927 periodbytes = samples_to_bytes(periodsize);
928 }
929 else
930 if(bytes_to_samples(periodbytes) < periodsize) {
931 periodsize = bytes_to_samples(periodbytes);
932 }
933
934 //make sure period size is a whole fraction of the buffer size
935 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
936 if(periodsize) {
937 nrperiods = bufsize/periodbytes;
938 }
939 else {
940 rprintf(("32_WSHwPrms error. Invalid periodsize (=0). closing file\n"));
941 DebugInt3();
942 return OSSERR_INVALID_PARAMETER;
943 }
944 //check nr of periods against lower and upper boundaries
945 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
946 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
947 if(nrperiods < minnrperiods) {
948 nrperiods = minnrperiods;
949 }
950 else
951 if(nrperiods > maxnrperiods) {
952 nrperiods = maxnrperiods;
953 }
954 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
955 //so we make sure it's an even number.
956 if(nrperiods == 1) {
957 rprintf(("32_WSHwPrms error. Invalid Num periods(=1). closing file\n"));
958 DebugInt3();
959 return OSSERR_INVALID_PARAMETER;
960 }
961 nrperiods &= ~1;
962
963 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
964 //period size and buffer size
965
966 _snd_pcm_hw_params_any(&params);
967 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
968 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
969 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
970 pHwParams->ulBitsPerSample, 0);
971 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
972 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
973 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
974 OSSToALSADataType[pHwParams->ulDataType], 0);
975 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
976 pHwParams->ulNumChannels, 0);
977 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
978 pHwParams->ulSampleRate, 0);
979
980 /* Change from Andy. If statement added around 5 statements.
981 * Andy says: TODO: determine why small buffers are a problem for this code
982 * 20100107: DAZ: This change is questionable.
983 * 20180109: DAZ: This changes causes problems for many systems including intermittent
984 * sound and unexpected hangs. Reverted by commenting out the if statement.
985 */
986// if (periodsize > 6 * minperiodsize)
987// {
988 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
989 periodsize, 0);
990 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
991 periodbytes, 0);
992 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_PERIODS,
993 nrperiods, 0);
994 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
995 periodsize*nrperiods, 0);
996 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
997 periodbytes*nrperiods, 0);
998// }
999
1000 dprintf(("HWP: SR rate %ld, BPS %ld, CH %ld, PRSZ %lx, periods %lx",
1001 pHwParams->ulSampleRate, pHwParams->ulBitsPerSample, pHwParams->ulNumChannels, periodsize, nrperiods));
1002
1003 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)&params);
1004 if (ret == -77 && fTryAgain == FALSE)
1005 {
1006 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1007 fTryAgain = TRUE;
1008 rprintf((" Error -77 from first IOCTL HW Parms"));
1009 goto tryagain;
1010 }
1011
1012 if(ret) {
1013 if(fTryAgain == FALSE) {
1014 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
1015 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1016 dprintf(("Period size min=%lx max=%lx", minperiodsize, maxperiodsize));
1017 if(minperiodsize > maxperiodsize) {
1018 //ALSA doesn't like the period size; try suggested one
1019 periodsize = maxperiodsize;
1020 periodbytes = samples_to_bytes(periodsize);
1021 dprintf((" Peroid size error IOCTL HW Parms"));
1022 fTryAgain = TRUE;
1023 goto tryagain;
1024 }
1025 }
1026 rprintf(("Error %ld second time.. Bailing", ret));
1027 return UNIXToOSSError(ret);
1028 }
1029
1030 //set silence threshold (all sizes in frames) (only needed for playback)
1031 if(pHandle->file.f_mode == FMODE_WRITE)
1032 {
1033 swparams.avail_min = periodsize;
1034 swparams.period_step = 1;
1035 if(nrperiods <= 2) {
1036 swparams.silence_size = (periodsize/2);
1037 }
1038 else {
1039 swparams.silence_size = periodsize;
1040 }
1041 swparams.silence_threshold = swparams.silence_size;
1042 swparams.sleep_min = 0;
1043 swparams.start_threshold = 1;
1044 swparams.stop_threshold = periodsize*nrperiods;
1045 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1046 swparams.xfer_align = periodsize;
1047
1048 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)&swparams);
1049 }
1050
1051 total = 0;
1052 per_bytes = periodbytes;
1053 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)&status);
1054 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1055 (status.state != SNDRV_PCM_STATE_SETUP) &&
1056 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1057 (status.state != SNDRV_PCM_STATE_DRAINING))) {
1058 rprintf(("Device is not in proper state: %lx. Calling prepare\n", status.state));
1059 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1060 }
1061 return UNIXToOSSError(ret);
1062}
1063
1064
1065//******************************************************************************
1066ULONG CountWv=0;
1067ULONG LockAdd=0;
1068extern ULONG xchg( ULONG *p, ULONG x);
1069#pragma aux xchg = "xchg [esi],eax" parm [ESI][EAX] value [EAX];
1070//******************************************************************************
1071OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG ulBuffer, ULONG ulReqSize, ULONG *pulTransferred, int pcm)
1072{
1073 soundhandle *pHandle = (soundhandle *)streamid;
1074 struct snd_pcm_status status;
1075 int iRet;
1076 //int align, iRet1;
1077 LONG ulTransferred;
1078 //ULONG ulPosition, ulI, ulJ;
1079 ULONG ulSize;
1080 //char *buf;
1081
1082// return OSSERR_SUCCESS;
1083
1084 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1085 DebugInt3();
1086 return OSSERR_INVALID_STREAMID;
1087 }
1088 if(pulTransferred == NULL || ulBuffer == 0 || ulReqSize == 0) {
1089 DebugInt3();
1090 return OSSERR_INVALID_PARAMETER;
1091 }
1092
1093 //set operation to non-blocking
1094 pHandle->file.f_flags = O_NONBLOCK;
1095
1096 /* get the status of the circular dma buffer */
1097 iRet = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)&status);
1098
1099 if(iRet) {
1100 DebugInt3();
1101 return UNIXToOSSError(iRet);
1102 }
1103
1104 CountWv++;
1105 ulTransferred = 0;
1106 *pulTransferred = 0;
1107 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1108 {
1109 case SNDRV_MINOR_PCM_PLAYBACK:
1110
1111#if 1
1112 //first check how much room is left in the circular dma buffer
1113 //this is done to make sure we don't block inside ALSA while trying to write
1114 //more data than fits in the internal dma buffer.
1115 ulSize = min(ulReqSize, samples_to_bytes(status.avail));
1116
1117 if (ulSize == 0) {
1118 rprintf(("OSS32_WaveAddBuffer: no room left in hardware buffer!!"));
1119 rprintf(("state=%x avail=%x ReqSize=%x", status.state, status.avail, ulReqSize));
1120 *pulTransferred = 0;
1121 return OSSERR_BUFFER_FULL;
1122 }
1123
1124 //dprintf(("WaveAddBuffer: ReqSize=%x Size=%x", ulReqSize, ulSize));
1125
1126 //rprintf(("AddBuffer: state=%x avail=%x ReqSize=%x", status.state, status.avail, ulReqSize));
1127 if (status.state == SNDRV_PCM_STATE_XRUN) {
1128 rprintf(("Internal Error: Xrun"));
1129 iRet = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1130 if (iRet < 0) {
1131 rprintf(("Prepare failed: state=%x avail=%x ReqSize=%x", status.state, status.avail, ulReqSize));
1132 return UNIXToOSSError(iRet);
1133 }
1134 iRet = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)&status);
1135 rprintf(("Xrun restarted: state=%x avail=%x ReqSize=%x", status.state, status.avail, ulReqSize));
1136 if (iRet < 0) return UNIXToOSSError(iRet);
1137 }
1138
1139 iRet = pHandle->file.f_op->write(&pHandle->file, (char *)ulBuffer, ulSize, &pHandle->file.f_pos);
1140
1141 if (iRet != ulSize) rprintf(("WaveAddBuffer: ReqSize=%x Size=%x iRet=%x", ulReqSize, ulSize, iRet));
1142
1143 if (iRet < 0) return UNIXToOSSError(iRet);
1144 ulTransferred = iRet;
1145#else
1146 //first check how much room is left in the circular dma buffer
1147 //this is done to make sure we don't block inside ALSA while trying to write
1148 //more data than fits in the internal dma buffer.
1149 ulSize = min(ulReqSize, samples_to_bytes(status.avail));
1150
1151 //printk("OSS32_WaveAddBuffer N:%d hw=%x app=%x avail=%x req size=%x size=%x",
1152 // CountWv, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), ulSize, ulReqSize);
1153
1154 if (ulSize == 0) {
1155 rprintf(("OSS32_WaveAddBuffer: no room left in hardware buffer!!"));
1156 rprintf(("state=%x avail=%x SizeReq=%x", status.state, status.avail, ulReqSize));
1157 *pulTransferred = 0;
1158 return OSSERR_BUFFER_FULL;
1159 }
1160
1161 rprintf(("WaveAddBuffer: ReqSize=%x Size=%x", ulReqSize, ulSize));
1162
1163 // size should be aligned to channels number * samplesize //PS+++ what is it and why?!?!?!
1164 ulJ = 10; // 10 try if error
1165 iRet = -11;
1166 while (ulSize && ulJ && iRet) {
1167 for (ulI=0; ulI < 1000; ulI++) {
1168 iRet1 = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)&status);
1169 // If here any state and have free buffer to any byte
1170 if ((status.state != SNDRV_PCM_STATE_XRUN ) && samples_to_bytes(status.avail) ) break;
1171 if (status.state == SNDRV_PCM_STATE_XRUN) {
1172 rprintf(("Internal Error: Xrun"));
1173 }
1174 if (ulI > 998) {
1175 rprintf(("timeout state=%x avail=%d hw=%d app=%d",status.state,samples_to_bytes(status.avail),samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1176 iRet1 = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1177 }
1178 }
1179
1180 if (iRet1 < 0) {
1181 rprintf(("iRet1=%i trans=%x ReqSize=%x Size=%x", iRet1, ulTransferred, ulReqSize, ulSize));
1182 break; // We have any global error, don't try more
1183 }
1184
1185 iRet = pHandle->file.f_op->write(&pHandle->file, (char *)ulBuffer, ulSize, &pHandle->file.f_pos);
1186 rprintf(("J=%x iRet=%x", ulJ, iRet));
1187
1188 if (iRet < 0 ) { // We have any error, don't try more
1189 ulJ--;
1190 rprintf(("Error ret=%i ret1=%i trans=%x ReqSize=%x Size=%x", iRet, iRet1, ulTransferred, ulReqSize, ulSize));
1191 if ( iRet != -11 ) {
1192 rprintf(("Doing prepare"));
1193 iRet1 = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1194 }
1195 continue;
1196 }
1197 if (iRet == 0) {
1198 continue;
1199 }
1200 ulTransferred += iRet;
1201 // printk("written: now: %d, trans: %d need %d tot:%d", iRet, ulTransferred, ulReqSize,ulSize);
1202 ulBuffer += iRet;
1203 if (ulSize > iRet) ulSize -= iRet;
1204 else ulSize = 0;
1205 }
1206#endif
1207 break;
1208 case SNDRV_MINOR_PCM_CAPTURE:
1209 //printk("OSS32_WaveAddBuffer N:%d state=%x hw=%x app=%x avail=%x size=%x",
1210 // CountWv, status.state, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), ulReqSize);
1211// Need to handle overrun condition when reading
1212// if (status.state == SNDRV_PCM_STATE_XRUN) {
1213// *pulTransferred = 0;
1214// return OSSERR_BUFFER_FULL;
1215// }
1216 iRet = pHandle->file.f_op->read(&pHandle->file, (char *)ulBuffer, ulReqSize, &pHandle->file.f_pos);
1217 if (iRet < 0) {
1218 *pulTransferred = 0;
1219 return OSSERR_BUFFER_FULL;
1220 }
1221 ulTransferred = iRet;
1222 break;
1223 default:
1224 DebugInt3();
1225 return OSSERR_INVALID_PARAMETER;
1226 }
1227
1228 total += ulTransferred;
1229 *pulTransferred = ulTransferred;
1230 prev_size = ulTransferred;
1231// if (*pulTransferred < ulSize)
1232// {
1233// printk("warning: ulTransferred [%d] less than requested [%d]", *pulTransferred, ulSize);
1234// iRet1 = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1235// }
1236
1237 return OSSERR_SUCCESS;
1238}
1239//******************************************************************************
1240//******************************************************************************
1241OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1242{
1243 soundhandle *pHandle = (soundhandle *)streamid;
1244 struct snd_pcm_status status;
1245 int ret;
1246
1247 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1248 DebugInt3();
1249 return OSSERR_INVALID_STREAMID;
1250 }
1251 if(pPosition == NULL) {
1252 DebugInt3();
1253 return OSSERR_INVALID_PARAMETER;
1254 }
1255
1256 //set operation to non-blocking
1257 pHandle->file.f_flags = O_NONBLOCK;
1258
1259 //Get the status of the stream
1260 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)&status);
1261
1262 if(ret) {
1263 DebugInt3();
1264 return UNIXToOSSError(ret);
1265 }
1266
1267 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1268 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1269 return OSSERR_SUCCESS;
1270}
1271//******************************************************************************
1272//******************************************************************************
1273OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1274{
1275 soundhandle *pHandle = (soundhandle *)streamid;
1276 struct snd_pcm_status status;
1277 int ret;
1278
1279 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1280 DebugInt3();
1281 return OSSERR_INVALID_STREAMID;
1282 }
1283 if(pBytesAvail == NULL) {
1284 DebugInt3();
1285 return OSSERR_INVALID_PARAMETER;
1286 }
1287
1288 //set operation to non-blocking
1289 pHandle->file.f_flags = O_NONBLOCK;
1290
1291 //Get the nr of bytes left in the audio buffer
1292 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)&status);
1293
1294 if(ret) {
1295 DebugInt3();
1296 return UNIXToOSSError(ret);
1297 }
1298 ret = samples_to_bytes(status.avail);
1299
1300 *pBytesAvail = ret;
1301 return OSSERR_SUCCESS;
1302}
1303//******************************************************************************
1304//******************************************************************************
1305OSSRET OSS32_WaveGetHwPtr(ULONG streamid, ULONG *pPosition)
1306{
1307 soundhandle *pHandle = (soundhandle *)streamid;
1308 struct snd_pcm_status status;
1309 int ret;
1310
1311 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1312 DebugInt3();
1313 return OSSERR_INVALID_STREAMID;
1314 }
1315 if(pPosition == NULL) {
1316 DebugInt3();
1317 return OSSERR_INVALID_PARAMETER;
1318 }
1319
1320 //set operation to non-blocking
1321 pHandle->file.f_flags = O_NONBLOCK;
1322
1323 //Get the status of the stream
1324 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)&status);
1325
1326 if(ret) {
1327 DebugInt3();
1328 return UNIXToOSSError(ret);
1329 }
1330
1331 *pPosition = samples_to_bytes(status.appl_ptr); //return new hardware position
1332 return OSSERR_SUCCESS;
1333}
1334//******************************************************************************
1335//******************************************************************************
1336OSSRET OSS32_WaveGetStatus(ULONG streamid, ULONG *pStatus)
1337{
1338 struct snd_pcm_status status;
1339 soundhandle *pHandle = (soundhandle *)streamid;
1340 int ret;
1341
1342 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1343 DebugInt3();
1344 return OSSERR_INVALID_STREAMID;
1345 }
1346 if(pStatus == NULL) {
1347 DebugInt3();
1348 return OSSERR_INVALID_PARAMETER;
1349 }
1350
1351 //set operation to non-blocking
1352 pHandle->file.f_flags = O_NONBLOCK;
1353
1354 //Get the status of the stream
1355 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)&status);
1356 if(ret) return UNIXToOSSError(ret);
1357 *pStatus = status.state;
1358
1359 return OSSERR_SUCCESS;
1360}
1361//******************************************************************************
1362//******************************************************************************
1363OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1364{
1365 soundhandle *pHandle = (soundhandle *)streamid;
1366 int ret;
1367 int leftvol, rightvol;
1368 struct snd_pcm_volume pcm_volume;
1369
1370 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1371 DebugInt3();
1372 return OSSERR_INVALID_STREAMID;
1373 }
1374 //set operation to non-blocking
1375 pHandle->file.f_flags = O_NONBLOCK;
1376
1377 leftvol = GET_VOLUME_L(volume);
1378 rightvol = GET_VOLUME_R(volume);
1379
1380 pcm_volume.nrchannels = 4;
1381 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1382 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1383 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1384 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1385
1386 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1387 ret = pHandle->file.f_op->unlocked_ioctl(&pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)&pcm_volume);
1388 return UNIXToOSSError(ret);
1389}
1390//******************************************************************************
1391
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