source: GPL/trunk/lib32/sound.c@ 289

Last change on this file since 289 was 269, checked in by Brendan Oakley, 18 years ago

Load of work from Pavel to improve HDA in Uniaud32
File size: 51.8 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;
54// int pcm_instances = 0; //PS+++ !!!!!!! what is it!!!! see pcm.lib
55
56OpenedHandles opened_handles[8 * 256] = {0};
57
58//OSS32 to ALSA datatype conversion table
59static int OSSToALSADataType[OSS32_PCM_MAX_FORMATS] = {
60/* OSS32_PCM_FORMAT_S8 */ SNDRV_PCM_FORMAT_S8, //signed 8 bits sample
61/* OSS32_PCM_FORMAT_U8 */ SNDRV_PCM_FORMAT_U8, //unsigned 8 bits sample
62/* OSS32_PCM_FORMAT_S16_LE */ SNDRV_PCM_FORMAT_S16_LE, //signed 16 bits sample (little endian/Intel)
63/* OSS32_PCM_FORMAT_S16_BE */ SNDRV_PCM_FORMAT_S16_BE, //signed 16 bits sample (big endian/Motorola)
64/* OSS32_PCM_FORMAT_U16_LE */ SNDRV_PCM_FORMAT_U16_LE, //unsigned 16 bits sample (little endian/Intel)
65/* OSS32_PCM_FORMAT_U16_BE */ SNDRV_PCM_FORMAT_U16_BE, //unsigned 16 bits sample (big endian/Motorola)
66/* OSS32_PCM_FORMAT_S24_LE */ SNDRV_PCM_FORMAT_S24_LE, //signed 24 bits sample (little endian/Intel)
67/* OSS32_PCM_FORMAT_S24_BE */ SNDRV_PCM_FORMAT_S24_BE, //signed 24 bits sample (big endian/Motorola)
68/* OSS32_PCM_FORMAT_U24_LE */ SNDRV_PCM_FORMAT_U24_LE, //unsigned 24 bits sample (little endian/Intel)
69/* OSS32_PCM_FORMAT_U24_BE */ SNDRV_PCM_FORMAT_U24_BE, //unsigned 24 bits sample (big endian/Motorola)
70/* OSS32_PCM_FORMAT_S32_LE */ SNDRV_PCM_FORMAT_S32_LE, //signed 32 bits sample (little endian/Intel)
71/* OSS32_PCM_FORMAT_S32_BE */ SNDRV_PCM_FORMAT_S32_BE, //signed 32 bits sample (big endian/Motorola)
72/* OSS32_PCM_FORMAT_U32_LE */ SNDRV_PCM_FORMAT_U32_LE, //unsigned 32 bits sample (little endian/Intel)
73/* OSS32_PCM_FORMAT_U32_BE */ SNDRV_PCM_FORMAT_U32_BE, //unsigned 32 bits sample (big endian/Motorola)
74/* OSS32_PCM_FORMAT_MULAW */ SNDRV_PCM_FORMAT_MU_LAW, //8 bps (compressed 16 bits sample)
75/* OSS32_PCM_FORMAT_ALAW */ SNDRV_PCM_FORMAT_A_LAW, //8 bps (compressed 16 bits sample)
76/* OSS32_PCM_FORMAT_ADPCM */ SNDRV_PCM_FORMAT_IMA_ADPCM, //4 bps (compressed 16 bits sample)
77/* OSS32_PCM_FORMAT_MPEG */ SNDRV_PCM_FORMAT_MPEG, //AC3?
78};
79
80//******************************************************************************
81//******************************************************************************
82int register_chrdev(unsigned int version, const char *name, struct file_operations *fsop)
83{
84 if(!strcmp(name, "alsa")) {
85 alsa_fops = fsop;
86 }
87 return 0;
88}
89//******************************************************************************
90//******************************************************************************
91int unregister_chrdev(unsigned int version, const char *name)
92{
93 if(!strcmp(name, "alsa")) {
94 alsa_fops = NULL;
95 }
96 return 0;
97}
98//******************************************************************************
99//******************************************************************************
100int register_sound_special(struct file_operations *fops, int unit)
101{
102 if(fops == NULL) return -1;
103
104 memcpy(&oss_devices[OSS32_SPECIALID], fops, sizeof(struct file_operations));
105 return OSS32_SPECIALID;
106}
107//******************************************************************************
108//******************************************************************************
109int register_sound_mixer(struct file_operations *fops, int dev)
110{
111 if(fops == NULL) return -1;
112
113 memcpy(&oss_devices[OSS32_MIXERID], fops, sizeof(struct file_operations));
114 return OSS32_MIXERID;
115}
116//******************************************************************************
117//******************************************************************************
118int register_sound_midi(struct file_operations *fops, int dev)
119{
120 if(fops == NULL) return -1;
121
122 memcpy(&oss_devices[OSS32_MIDIID], fops, sizeof(struct file_operations));
123 return OSS32_MIDIID;
124}
125//******************************************************************************
126//******************************************************************************
127int register_sound_dsp(struct file_operations *fops, int dev)
128{
129 if(fops == NULL) return -1;
130
131 memcpy(&oss_devices[OSS32_DSPID], fops, sizeof(struct file_operations));
132 return OSS32_DSPID;
133}
134//******************************************************************************
135//******************************************************************************
136int register_sound_synth(struct file_operations *fops, int dev)
137{
138 if(fops == NULL) return -1;
139
140 memcpy(&oss_devices[OSS32_SYNTHID], fops, sizeof(struct file_operations));
141 return OSS32_SYNTHID;
142}
143//******************************************************************************
144//******************************************************************************
145void unregister_sound_special(int unit)
146{
147 memset(&oss_devices[OSS32_SPECIALID], 0, sizeof(struct file_operations));
148}
149//******************************************************************************
150//******************************************************************************
151void unregister_sound_mixer(int unit)
152{
153 memset(&oss_devices[OSS32_MIXERID], 0, sizeof(struct file_operations));
154}
155//******************************************************************************
156//******************************************************************************
157void unregister_sound_midi(int unit)
158{
159 memset(&oss_devices[OSS32_MIDIID], 0, sizeof(struct file_operations));
160}
161//******************************************************************************
162//******************************************************************************
163void unregister_sound_dsp(int unit)
164{
165 memset(&oss_devices[OSS32_DSPID], 0, sizeof(struct file_operations));
166}
167//******************************************************************************
168//******************************************************************************
169void unregister_sound_synth(int unit)
170{
171 memset(&oss_devices[OSS32_SYNTHID], 0, sizeof(struct file_operations));
172}
173//******************************************************************************
174//******************************************************************************
175OSSRET UNIXToOSSError(int unixerror)
176{
177 switch(unixerror) {
178 case 0:
179 return OSSERR_SUCCESS;
180 case -ENOMEM:
181 return OSSERR_OUT_OF_MEMORY;
182 case -ENODEV:
183 return OSSERR_NO_DEVICE_AVAILABLE;
184 case -ENOTTY:
185 case -EINVAL:
186 return OSSERR_INVALID_PARAMETER;
187 case -EAGAIN:
188 return OSSERR_AGAIN; //????
189 case -ENXIO:
190 return OSSERR_IO_ERROR;
191 case -EBUSY:
192 return OSSERR_BUSY;
193 case -EPERM:
194 return OSSERR_ACCESS_DENIED; //??
195 case -EPIPE:
196 case -EBADFD:
197 return OSSERR_ACCESS_DENIED; //??
198 default:
199 dprintf(("Unknown error %d", (unixerror > 0) ? unixerror : -unixerror));
200 return OSSERR_UNKNOWN;
201 }
202}
203//******************************************************************************
204//ALSA to OSS32 datatype conversion
205//******************************************************************************
206int ALSAToOSSDataType(ULONG ALSADataType)
207{
208 switch(ALSADataType)
209 {
210 case SNDRV_PCM_FORMAT_S8:
211 return OSS32_CAPS_PCM_FORMAT_S8; //signed 8 bits sample
212 case SNDRV_PCM_FORMAT_U8:
213 return OSS32_CAPS_PCM_FORMAT_U8; //unsigned 8 bits sample
214 case SNDRV_PCM_FORMAT_S16_LE:
215 return OSS32_CAPS_PCM_FORMAT_S16_LE; //signed 16 bits sample (little endian/Intel)
216 case SNDRV_PCM_FORMAT_S16_BE:
217 return OSS32_CAPS_PCM_FORMAT_S16_BE; //signed 16 bits sample (big endian/Motorola)
218 case SNDRV_PCM_FORMAT_U16_LE:
219 return OSS32_CAPS_PCM_FORMAT_U16_LE; //unsigned 16 bits sample (little endian/Intel)
220 case SNDRV_PCM_FORMAT_U16_BE:
221 return OSS32_CAPS_PCM_FORMAT_U16_BE; //unsigned 16 bits sample (big endian/Motorola)
222 case SNDRV_PCM_FORMAT_S24_LE:
223 return OSS32_CAPS_PCM_FORMAT_S24_LE; //signed 24 bits sample (little endian/Intel)
224 case SNDRV_PCM_FORMAT_S24_BE:
225 return OSS32_CAPS_PCM_FORMAT_S24_BE; //signed 24 bits sample (big endian/Motorola)
226 case SNDRV_PCM_FORMAT_U24_LE:
227 return OSS32_CAPS_PCM_FORMAT_U24_LE; //unsigned 24 bits sample (little endian/Intel)
228 case SNDRV_PCM_FORMAT_U24_BE:
229 return OSS32_CAPS_PCM_FORMAT_U24_BE; //unsigned 16 bits sample (big endian/Motorola)
230 case SNDRV_PCM_FORMAT_S32_LE:
231 return OSS32_CAPS_PCM_FORMAT_S32_LE; //signed 32 bits sample (little endian/Intel)
232 case SNDRV_PCM_FORMAT_S32_BE:
233 return OSS32_CAPS_PCM_FORMAT_S32_BE; //signed 32 bits sample (big endian/Motorola)
234 case SNDRV_PCM_FORMAT_U32_LE:
235 return OSS32_CAPS_PCM_FORMAT_U32_LE; //unsigned 32 bits sample (little endian/Intel)
236 case SNDRV_PCM_FORMAT_U32_BE:
237 return OSS32_CAPS_PCM_FORMAT_U32_BE; //unsigned 32 bits sample (big endian/Motorola)
238 case SNDRV_PCM_FORMAT_MU_LAW:
239 return OSS32_CAPS_PCM_FORMAT_MULAW; //8 bps (compressed 16 bits sample)
240 case SNDRV_PCM_FORMAT_A_LAW:
241 return OSS32_CAPS_PCM_FORMAT_ALAW; //8 bps (compressed 16 bits sample)
242 case SNDRV_PCM_FORMAT_IMA_ADPCM:
243 return OSS32_CAPS_PCM_FORMAT_ADPCM; //4 bps (compressed 16 bits sample)
244 case SNDRV_PCM_FORMAT_MPEG:
245 return OSS32_CAPS_PCM_FORMAT_MPEG; //AC3?
246 default:
247 DebugInt3();
248 return -1;
249 }
250}
251//******************************************************************************
252//******************************************************************************
253ULONG ALSAToOSSRateFlags(ULONG fuRates)
254{
255 ULONG fuOSSRates = 0;
256
257 if(fuRates & SNDRV_PCM_RATE_5512) {
258 fuOSSRates |= OSS32_CAPS_PCM_RATE_5512;
259 }
260 if(fuRates & SNDRV_PCM_RATE_8000) {
261 fuOSSRates |= OSS32_CAPS_PCM_RATE_8000;
262 }
263 if(fuRates & SNDRV_PCM_RATE_11025) {
264 fuOSSRates |= OSS32_CAPS_PCM_RATE_11025;
265 }
266 if(fuRates & SNDRV_PCM_RATE_16000) {
267 fuOSSRates |= OSS32_CAPS_PCM_RATE_16000;
268 }
269 if(fuRates & SNDRV_PCM_RATE_22050) {
270 fuOSSRates |= OSS32_CAPS_PCM_RATE_22050;
271 }
272 if(fuRates & SNDRV_PCM_RATE_32000) {
273 fuOSSRates |= OSS32_CAPS_PCM_RATE_32000;
274 }
275 if(fuRates & SNDRV_PCM_RATE_44100) {
276 fuOSSRates |= OSS32_CAPS_PCM_RATE_44100;
277 }
278 if(fuRates & SNDRV_PCM_RATE_48000) {
279 fuOSSRates |= OSS32_CAPS_PCM_RATE_48000;
280 }
281#if 0
282 if(fuRates & SNDRV_PCM_RATE_64000) {
283 fuOSSRates |= OSS32_CAPS_PCM_RATE_64000;
284 }
285 if(fuRates & SNDRV_PCM_RATE_88200) {
286 fuOSSRates |= OSS32_CAPS_PCM_RATE_88200;
287 }
288 if(fuRates & SNDRV_PCM_RATE_96000) {
289 fuOSSRates |= OSS32_CAPS_PCM_RATE_96000;
290 }
291 if(fuRates & SNDRV_PCM_RATE_176400) {
292 fuOSSRates |= OSS32_CAPS_PCM_RATE_176400;
293 }
294 if(fuRates & SNDRV_PCM_RATE_192000) {
295 fuOSSRates |= OSS32_CAPS_PCM_RATE_192000;
296 }
297#endif
298 if(fuRates & SNDRV_PCM_RATE_CONTINUOUS) {
299 fuOSSRates |= OSS32_CAPS_PCM_RATE_CONTINUOUS;
300 }
301
302 //TODO:
303 if(fuRates & SNDRV_PCM_RATE_KNOT) {
304 DebugInt3();
305 }
306//#define OSS32_CAPS_PCM_RATE_KNOT (1<<31) /* supports more non-continuos rates */
307
308 return fuOSSRates;
309}
310//******************************************************************************
311//******************************************************************************
312OSSRET OSS32_QueryDevCaps(ULONG deviceid, POSS32_DEVCAPS pDevCaps)
313{
314 OSSSTREAMID streamid = 0;
315 soundhandle *pHandle;
316 snd_pcm_info_t *pcminfo = NULL;
317 snd_pcm_hw_params_t *params;
318 int ret, fmt, i;
319 ULONG format_mask;
320 snd_mask_t *mask;
321 int max_ch;
322
323#ifdef DEBUG
324 dprintf(("OSS32_QueryDevCaps"));
325#endif
326// max_ch = GetMaxChannels(deviceid, OSS32_CAPS_WAVE_PLAYBACK);
327
328 //these structures are too big to put on the stack
329 pcminfo = (snd_pcm_info_t *)kmalloc(sizeof(snd_pcm_info_t)+sizeof(snd_pcm_hw_params_t), GFP_KERNEL);
330 if(pcminfo == NULL) {
331 DebugInt3();
332 printk("OSS32_QueryDevCaps: out of memory\n");
333 return OSSERR_OUT_OF_MEMORY;
334 }
335 params = (snd_pcm_hw_params_t *)(pcminfo+1);
336
337// printk("Number of cards: %i\n",nrCardsDetected);
338// printk("dev id: %i\n",deviceid);
339 pDevCaps->nrDevices = 1;//nrCardsDetected;
340 pDevCaps->ulCaps = OSS32_CAPS_WAVE_PLAYBACK | OSS32_CAPS_WAVE_CAPTURE;
341
342 //query wave in & out caps
343 for(i=0;i<2;i++)
344 {
345 PWAVE_CAPS pWaveCaps = (i == 0) ? &pDevCaps->waveOutCaps : &pDevCaps->waveInCaps;
346
347 ret = OSS32_WaveOpen(deviceid, (i == 0) ? OSS32_STREAM_WAVEOUT : OSS32_STREAM_WAVEIN, &streamid, 0, 0);
348 if(ret != OSSERR_SUCCESS)
349 {
350 printk("OSS32_QueryDevCaps: wave open error %i\n", ret);
351 DebugInt3();
352 goto fail;
353 }
354 pHandle = (soundhandle *)streamid;
355 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
356 printk("OSS32_QueryDevCaps: invalid stream id \n");
357 ret = OSSERR_INVALID_STREAMID;
358 goto fail;
359 }
360 //set operation to non-blocking
361 pHandle->file.f_flags = O_NONBLOCK;
362
363 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_INFO, (ULONG)pcminfo);
364 if(ret != 0) {
365 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_INFO error %i\n", ret);
366 ret = UNIXToOSSError(ret);
367 goto fail;
368 }
369 if(i == 0) {//only need to do this once
370 if(pcminfo->name[0]) {
371 strncpy(pDevCaps->szDeviceName, pcminfo->name, sizeof(pDevCaps->szDeviceName));
372 }
373 else strncpy(pDevCaps->szDeviceName, pcminfo->id, sizeof(pDevCaps->szDeviceName));
374 }
375 printk("Device name: %s\n", pDevCaps->szDeviceName);
376 pWaveCaps->nrStreams = pcminfo->subdevices_count;
377
378 //get all hardware parameters
379 _snd_pcm_hw_params_any(params);
380 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)params);
381 if(ret != 0) {
382 printk("OSS32_QueryDevCaps: SNDRV_PCM_IOCTL_HW_REFINE error %i\n", ret);
383 ret = UNIXToOSSError(ret);
384 goto fail;
385 }
386
387 pWaveCaps->ulMinChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->min;
388 pWaveCaps->ulMaxChannels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS)->max;
389 pWaveCaps->ulChanFlags = 0;
390 if(pWaveCaps->ulMinChannels == 1) {
391 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_MONO;
392 }
393 if(pWaveCaps->ulMaxChannels >= 2) {
394 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_STEREO;
395 }
396 if(pWaveCaps->ulMaxChannels >= 4) {
397 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_QUAD;
398 }
399 if(pWaveCaps->ulMaxChannels >= 6) {
400 pWaveCaps->ulChanFlags |= OSS32_CAPS_PCM_CHAN_5_1;
401 }
402
403 pWaveCaps->ulMinRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->min;
404 pWaveCaps->ulMaxRate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE)->max;
405
406 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_RATE_MASK);
407 pWaveCaps->ulRateFlags = mask->bits[0];
408
409 pWaveCaps->ulRateFlags = ALSAToOSSRateFlags(pWaveCaps->ulRateFlags);
410
411 printk("rate flags: %X\n", pWaveCaps->ulRateFlags);
412
413 pWaveCaps->ulDataFormats = 0;
414
415 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
416 format_mask = mask->bits[0];
417 for(fmt=0;fmt<32;fmt++)
418 {
419 if(format_mask & (1 << fmt))
420 {
421 int f = ALSAToOSSDataType(fmt);
422 if (f >= 0)
423 pWaveCaps->ulDataFormats |= f;
424 }
425 }
426
427 OSS32_WaveClose(streamid);
428 streamid = 0;
429
430 }
431 //Check support for MPU401, FM & Wavetable MIDI
432 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIOUT, &streamid) == OSSERR_SUCCESS)
433 {
434 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_PLAYBACK;
435 OSS32_MidiClose(streamid);
436 streamid = 0;
437 }
438 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_MPU401_MIDIIN, &streamid) == OSSERR_SUCCESS)
439 {
440 pDevCaps->ulCaps |= OSS32_CAPS_MPU401_CAPTURE;
441 OSS32_MidiClose(streamid);
442 streamid = 0;
443 }
444 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_FM_MIDIOUT, &streamid) == OSSERR_SUCCESS)
445 {
446 pDevCaps->ulCaps |= OSS32_CAPS_FMSYNTH_PLAYBACK;
447 OSS32_MidiClose(streamid);
448 streamid = 0;
449 }
450 if(OSS32_MidiOpen(deviceid, OSS32_STREAM_WAVETABLE_MIDIOUT, &streamid) == OSSERR_SUCCESS)
451 {
452 pDevCaps->ulCaps |= OSS32_CAPS_WAVETABLE_PLAYBACK;
453 OSS32_MidiClose(streamid);
454 streamid = 0;
455 }
456 if(OSS32_MixQueryName(deviceid, &pDevCaps->szMixerName, sizeof(pDevCaps->szMixerName)) != OSSERR_SUCCESS) {
457 DebugInt3();
458 printk("OSS32_QueryDevCaps: OSS32_MixQueryName error\n");
459 goto fail;
460 }
461// printk("OSS32_QueryDevCaps: devname: [%s]\n", pDevCaps->szDeviceName);
462 kfree(pcminfo);
463 streamid = 0;
464
465
466 return OSSERR_SUCCESS;
467
468fail:
469 printk("OSS32_QueryDevCaps failed\n");
470 DebugInt3();
471 if(streamid) OSS32_WaveClose(streamid);
472 if(pcminfo) kfree(pcminfo);
473
474 return ret;
475}
476//******************************************************************************
477//******************************************************************************
478OSSRET OSS32_WaveOpen(ULONG deviceid, ULONG streamtype, OSSSTREAMID *pStreamId, int pcm, USHORT fileid)
479{
480 soundhandle *pHandle;
481 int ret,i;
482
483 if (pStreamId)
484 *pStreamId = 0;
485 else
486 {
487 printk("ERROR: invalid stream id pointer passed\n");
488 return OSSERR_OUT_OF_MEMORY;
489 }
490
491 if(alsa_fops == NULL) {
492 DebugInt3();
493#ifdef DEBUG
494 dprintf(("OSS32_WaveOpen: no devices"));
495#endif
496 printk("OSS32_WaveOpen: no devices\n");
497
498 return OSSERR_NO_DEVICE_AVAILABLE;
499 }
500
501// printk("dev id: %i\n",deviceid);
502
503 pHandle = kmalloc(sizeof(soundhandle), GFP_KERNEL);
504 if(pHandle == NULL) {
505 DebugInt3();
506 printk("OSS32_WaveOpen: out of memory\n");
507 return OSSERR_OUT_OF_MEMORY;
508 }
509 memset(pHandle, 0, sizeof(soundhandle));
510
511 //set operation to non-blocking
512 pHandle->file.f_flags = O_NONBLOCK;
513
514 //setup pointers in file structure (used internally by ALSA)
515 pHandle->file.f_dentry = &pHandle->d_entry;
516 pHandle->file.f_dentry->d_inode = &pHandle->inode;
517
518 switch(streamtype) {
519 case OSS32_STREAM_WAVEOUT:
520 pHandle->file.f_mode = FMODE_WRITE;
521 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_PLAYBACK) + pcm;
522 break;
523 case OSS32_STREAM_WAVEIN:
524 pHandle->file.f_mode = FMODE_READ;
525 pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_PCM_CAPTURE) + pcm;
526 break;
527 default:
528 DebugInt3();
529 kfree(pHandle);
530 printk("OSS32_WaveOpen: invalid parameter\n");
531 return OSSERR_INVALID_PARAMETER;
532 }
533
534 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
535 //printk("OSS32_WaveOpen. ret: %i\n", ret);
536 /* check if PCM already opened (stupid uniaud16.sys doesnt closes it) */
537 if (ret == -16)
538 {
539 for (i=0; i < 8*256; i++)
540 {
541 if (opened_handles[i].handle != 0)
542 {
543 ret = 0;
544 if (pStreamId)
545 *pStreamId = (ULONG)opened_handles[i].handle;
546 opened_handles[i].reuse = 1; /* try to reuse */
547 if (OSS32_WaveClose((OSSSTREAMID)opened_handles[i].handle) == 0)
548 {
549 if (!opened_handles[i].reuse)
550 {
551 //opened_handles[i].handle = 0;
552 kfree(opened_handles[i].handle); //free handle data
553 ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
554 printk("OSS32_WaveOpen. Reopen ret: %i\n", ret);
555 }
556 else
557 {
558 kfree(pHandle);
559 pHandle = opened_handles[i].handle;
560 }
561 break;
562 }
563 }
564 }
565 }
566 else if (ret == 0)
567 {
568 for (i=0; i < 8*256; i++)
569 {
570 if (opened_handles[i].handle == 0)
571 {
572 opened_handles[i].handle = pHandle;
573 opened_handles[i].FileId = fileid;
574 break;
575 }
576 }
577 }
578
579 if(ret) {
580 kfree(pHandle);
581 DebugInt3();
582 printk("OSS32_WaveOpen: open error: %i\n",ret);
583 return UNIXToOSSError(ret);
584 }
585 pHandle->magic = MAGIC_WAVE_ALSA32;
586 if (pStreamId)
587 *pStreamId = (ULONG)pHandle;
588 // filling opened handles table
589 printk("OSS32_WaveOpen. streamid %X\n",(ULONG)pHandle);
590 return OSSERR_SUCCESS;
591}
592//******************************************************************************
593//******************************************************************************
594
595OSSRET OSS32_WaveClose(OSSSTREAMID streamid)
596{
597 soundhandle *pHandle = (soundhandle *)streamid;
598 int ret = 0, i;
599
600 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
601 DebugInt3();
602 printk("OSS32_WaveClose. invalid streamid %X\n",(ULONG)pHandle);
603 return OSSERR_INVALID_STREAMID;
604 }
605
606 //set operation to non-blocking
607 pHandle->file.f_flags = O_NONBLOCK;
608
609 for (i=0; i < 8*256; i++)
610 {
611 if (opened_handles[i].handle == pHandle)
612 {
613 printk("Found phandle for closing: %x reuse flag: %i\n", pHandle, opened_handles[i].reuse);
614 if (!opened_handles[i].reuse)
615 {
616 ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
617 opened_handles[i].handle = 0;
618 kfree(pHandle); //free handle data
619 OSS32_CloseUNI16(); /* say to UNIAUD16 that we closing now */
620 } else
621 {
622 /* prepare for reuse */
623 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_RESET, 0);
624 pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
625 }
626 break;
627 }
628 }
629
630 if (i >= 8*256)
631 {
632 //all already closed
633 printk("phandle %x not found\n", pHandle);
634// return OSSERR_SUCCESS;
635 }
636
637
638 if(ret) {
639 printk("Error closing wave. rc = %i\n", ret);
640 DebugInt3();
641 return UNIXToOSSError(ret);
642 }
643 printk("OSS32_WaveClose. streamid %X\n",(ULONG)pHandle);
644 return OSSERR_SUCCESS;
645}
646//******************************************************************************
647//******************************************************************************
648OSSRET OSS32_WavePrepare(OSSSTREAMID streamid)
649{
650 soundhandle *pHandle = (soundhandle *)streamid;
651 int ret;
652
653#ifdef DEBUG
654 dprintf(("OSS32_WavePrepare"));
655#endif
656
657 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
658 DebugInt3();
659//#ifdef DEBUG
660 printk("vladest: OSS32_WavePrepare: invalid streamID\n");
661//#endif
662
663 return OSSERR_INVALID_STREAMID;
664 }
665 //set operation to non-blocking
666 pHandle->file.f_flags = O_NONBLOCK;
667
668 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
669 if (ret)
670 printk("Wave prepare ret = %i, streamid %X\n",ret,(ULONG)pHandle);
671
672 return UNIXToOSSError(ret);;
673}
674//******************************************************************************
675//******************************************************************************
676OSSRET OSS32_WaveStart(OSSSTREAMID streamid)
677{
678 soundhandle *pHandle = (soundhandle *)streamid;
679 int ret;
680
681 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
682 DebugInt3();
683 return OSSERR_INVALID_STREAMID;
684 }
685 //set operation to non-blocking
686 pHandle->file.f_flags = O_NONBLOCK;
687
688 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_START, 0);
689 if (ret)
690 printk("Wave start ret = %i, streamid %X\n",ret,(ULONG)pHandle);
691
692 return UNIXToOSSError(ret);;
693}
694//******************************************************************************
695//******************************************************************************
696OSSRET OSS32_WaveStop(OSSSTREAMID streamid)
697{
698 soundhandle *pHandle = (soundhandle *)streamid;
699 int ret;
700
701 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
702 DebugInt3();
703 return OSSERR_INVALID_STREAMID;
704 }
705 //set operation to non-blocking
706 pHandle->file.f_flags = O_NONBLOCK;
707
708 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_DROP, 0);
709 if (ret)
710 printk("Wave stop ret = %i. streamid %X\n",ret,(ULONG)pHandle);
711
712 return UNIXToOSSError(ret);;
713}
714//******************************************************************************
715//******************************************************************************
716OSSRET OSS32_WavePause(OSSSTREAMID streamid)
717{
718 soundhandle *pHandle = (soundhandle *)streamid;
719 int ret;
720
721 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
722 DebugInt3();
723 return OSSERR_INVALID_STREAMID;
724 }
725 //set operation to non-blocking
726 pHandle->file.f_flags = O_NONBLOCK;
727
728 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 0);
729 if (ret)
730 printk("Wave pause ret = %i, streamid %X\n",ret,(ULONG)pHandle);
731
732 return UNIXToOSSError(ret);;
733}
734//******************************************************************************
735//******************************************************************************
736OSSRET OSS32_WaveResume(OSSSTREAMID streamid)
737{
738 soundhandle *pHandle = (soundhandle *)streamid;
739 int ret;
740
741 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
742 DebugInt3();
743 return OSSERR_INVALID_STREAMID;
744 }
745 //set operation to non-blocking
746 pHandle->file.f_flags = O_NONBLOCK;
747
748 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PAUSE, 1);
749 if (ret)
750 printk("Wave resume ret = %i, streamid %X\n",ret,(ULONG)pHandle);
751
752 return UNIXToOSSError(ret);;
753}
754
755static unsigned rates[] = {
756 /* ATTENTION: these values depend on the definition in pcm.h! */
757 5512, 8000, 11025, 16000, 22050, 32000, 44100, 48000,
758 64000, 88200, 96000, 176400, 192000
759};
760
761//******************************************************************************
762//******************************************************************************
763OSSRET OSS32_WaveSetHwParams(OSSSTREAMID streamid, OSS32_HWPARAMS *pHwParams)
764{
765 soundhandle *pHandle = (soundhandle *)streamid;
766 snd_pcm_hw_params_t params;
767 snd_pcm_status_t status;
768 snd_pcm_sw_params_t swparams;
769 int ret, ret1, nrperiods, minnrperiods, maxnrperiods, samplesize, i;
770 ULONG bufsize, periodsize, minperiodsize, maxperiodsize;
771 ULONG periodbytes, minperiodbytes, maxperiodbytes;
772 BOOL fTryAgain = FALSE;
773 ULONG ulMinRate, ulMaxRate;
774
775#ifdef DEBUG
776 dprintf(("OSS32_WaveSetHwParams"));
777#endif
778 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
779 printk("OSS32_WaveSetHwParams error. Invalid handle: %x\n", pHandle);
780 DebugInt3();
781 return OSSERR_INVALID_STREAMID;
782 }
783 if(pHwParams == NULL) {
784 printk("OSS32_WaveSetHwParams error. params = NULL\n");
785 DebugInt3();
786 return OSSERR_INVALID_PARAMETER;
787 }
788 if(pHwParams->ulDataType >= OSS32_PCM_MAX_FORMATS) {
789 printk("OSS32_WaveSetHwParams error. Too high PCM format\n");
790 DebugInt3();
791 return OSSERR_INVALID_PARAMETER;
792 }
793 if ((int)pHwParams->ulNumChannels <= 0) {
794 printk("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 //size of two samples (adpcm sample can be as small as 4 bits (mono), so take two)
802 samplesize = snd_pcm_format_size(OSSToALSADataType[pHwParams->ulDataType], 1);
803 pHandle->doublesamplesize = samplesize * 2;
804 pHandle->doublesamplesize *= pHwParams->ulNumChannels;
805 periodbytes = pHwParams->ulPeriodSize;
806 periodsize = bytes_to_samples(periodbytes);
807 // checking number of channels
808
809 printk("channels: %i, period size: %i\n",pHwParams->ulNumChannels, periodbytes);
810 _snd_pcm_hw_params_any(&params);
811 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
812 ulMinRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->min;
813 ulMaxRate = hw_param_interval(&params, SNDRV_PCM_HW_PARAM_RATE)->max;
814
815 _snd_pcm_hw_params_any(&params);
816 do {
817 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
818 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
819 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
820 pHwParams->ulNumChannels, 0);
821 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
822 if (ret == 0) break;
823 pHwParams->ulNumChannels--;
824 } while(ret < 0 && pHwParams->ulNumChannels > 1);
825
826 printk("channels selected: %i\n",pHwParams->ulNumChannels);
827
828 //get all hardware parameters
829 _snd_pcm_hw_params_any(&params);
830 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
831 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
832 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
833 OSSToALSADataType[pHwParams->ulDataType], 0);
834 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
835 if(ret != 0) {
836 printk("invalid format %i\n", OSSToALSADataType[pHwParams->ulDataType]);
837 return UNIXToOSSError(ret);
838 }
839 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
840 pHwParams->ulBitsPerSample, 0);
841 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
842 if(ret != 0) {
843 printk("invalid number of sample bits %i\n", pHwParams->ulBitsPerSample);
844 return UNIXToOSSError(ret);
845 }
846 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
847 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
848 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
849 if(ret != 0) {
850 printk("invalid number of frame bits %i\n", pHwParams->ulBitsPerSample*pHwParams->ulNumChannels);
851 return UNIXToOSSError(ret);
852 }
853
854 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
855 pHwParams->ulBitsPerSample, 0);
856 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
857 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
858 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
859 OSSToALSADataType[pHwParams->ulDataType], 0);
860 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
861 pHwParams->ulNumChannels, 0);
862 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
863 pHwParams->ulSampleRate, 0);
864
865 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
866 if(ret != 0) {
867 printk("OSS32_WaveSetHwParams (first pass) error %i\n", ret);
868 printk("bps: %i\n",pHwParams->ulBitsPerSample);
869 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
870 printk("channels: %i\n",pHwParams->ulNumChannels);
871 printk("sample rate: %i\n",pHwParams->ulSampleRate);
872
873// printk("OSS32_WaveSetHwParams invalid sample rate %i\n", pHwParams->ulSampleRate);
874 // printk("will set to nearest\n");
875 _snd_pcm_hw_params_any(&params);
876 for (i=0; i<(sizeof(rates)/sizeof(unsigned))-1;i++)
877 {
878 if (pHwParams->ulSampleRate >= rates[i] &&
879 pHwParams->ulSampleRate <= rates[i+1])
880 {
881 pHwParams->ulSampleRate = rates[i];
882 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
883 pHwParams->ulSampleRate, 0);
884 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
885 if(ret == 0)
886 {
887 _snd_pcm_hw_params_any(&params);
888 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
889 pHwParams->ulBitsPerSample, 0);
890 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
891 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
892 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
893 OSSToALSADataType[pHwParams->ulDataType], 0);
894 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
895 pHwParams->ulNumChannels, 0);
896 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
897 pHwParams->ulSampleRate, 0);
898 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_REFINE, (ULONG)__Stack32ToFlat(&params));
899 goto __next;
900 }
901 }
902 }
903
904// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
905 DebugInt3();
906 return UNIXToOSSError(ret);
907 }
908__next:
909
910 printk("sample rate: %i\n",pHwParams->ulSampleRate);
911
912 //check period size against lower and upper boundaries
913 minperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->min;
914 maxperiodbytes = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_BYTES)->max;
915 if(periodbytes < minperiodbytes) {
916 periodbytes = minperiodbytes;
917 }
918 else
919 if(periodbytes > maxperiodbytes) {
920 periodbytes = maxperiodbytes;
921 }
922
923 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
924 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
925 if(periodsize < minperiodsize) {
926 periodsize = minperiodsize;
927 }
928 else
929 if(periodsize > maxperiodsize) {
930 periodsize = maxperiodsize;
931 }
932
933 if(samples_to_bytes(periodsize) < periodbytes) {
934 periodbytes = samples_to_bytes(periodsize);
935 }
936 else
937 if(bytes_to_samples(periodbytes) < periodsize) {
938 periodsize = bytes_to_samples(periodbytes);
939 }
940
941 //make sure period size is a whole fraction of the buffer size
942 bufsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->max;
943 if(periodsize) {
944 nrperiods = bufsize/periodbytes;
945 }
946 else {
947 printk("OSS32_WaveSetHwParams error. Invalid periodsize (=0). closing file\n");
948// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
949 DebugInt3();
950 return OSSERR_INVALID_PARAMETER;
951 }
952 //check nr of periods against lower and upper boundaries
953 minnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->min;
954 maxnrperiods = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIODS)->max;
955 if(nrperiods < minnrperiods) {
956 nrperiods = minnrperiods;
957 }
958 else
959 if(nrperiods > maxnrperiods) {
960 nrperiods = maxnrperiods;
961 }
962 //an odd nr of periods is not always a good thing (CMedia -> clicks during 8 bps playback),
963 //so we make sure it's an even number.
964 if(nrperiods == 1) {
965 DebugInt3();
966 printk("OSS32_WaveSetHwParams error. Invalid number of periods(=1). closing file\n");
967// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
968 return OSSERR_INVALID_PARAMETER;
969 }
970 nrperiods &= ~1;
971
972 //initialize parameter block & set sample rate, nr of channels and sample format, nr of periods,
973 //period size and buffer size
974//tryagain:
975 _snd_pcm_hw_params_any(&params);
976 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_ACCESS,
977 SNDRV_PCM_ACCESS_RW_INTERLEAVED, 0);
978 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
979 pHwParams->ulBitsPerSample, 0);
980 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FRAME_BITS,
981 pHwParams->ulBitsPerSample*pHwParams->ulNumChannels, 0);
982 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_FORMAT,
983 OSSToALSADataType[pHwParams->ulDataType], 0);
984 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_CHANNELS,
985 pHwParams->ulNumChannels, 0);
986 _snd_pcm_hw_param_set(&params, SNDRV_PCM_HW_PARAM_RATE,
987 pHwParams->ulSampleRate, 0);
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//#ifdef DEBUG_PK
999 printk("Hardware parameters: sample rate %i, data type %i, channels %i, period size %i, periods %i\n",
1000 pHwParams->ulSampleRate, pHwParams->ulDataType, pHwParams->ulNumChannels, periodsize, nrperiods);
1001//#endif
1002 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_HW_PARAMS, (ULONG)__Stack32ToFlat(&params));
1003 if (ret == -77 && fTryAgain == FALSE)
1004 {
1005 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1006 fTryAgain = TRUE;
1007 goto tryagain;
1008 }
1009 if(ret) {
1010 if(fTryAgain == FALSE) {
1011 minperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min;
1012 maxperiodsize = hw_param_interval((&params), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->max;
1013 if(minperiodsize > maxperiodsize) {
1014 //ALSA doesn't like the period size; try suggested one
1015 periodsize = maxperiodsize;
1016 periodbytes = samples_to_bytes(periodsize);
1017 fTryAgain = TRUE;
1018 goto tryagain;
1019 }
1020 }
1021 printk("OSS32_WaveSetHwParams (second pass) error %i\n", ret);
1022 printk("bps: %i\n",pHwParams->ulBitsPerSample);
1023 printk("format: %i\n",OSSToALSADataType[pHwParams->ulDataType]);
1024 printk("channels: %i\n",pHwParams->ulNumChannels);
1025 printk("sample rate: %i\n",pHwParams->ulSampleRate);
1026 printk("periodsize: %i\n",periodsize);
1027 printk("periodbytes: %i\n",periodbytes);
1028 printk("periods: %i\n",nrperiods);
1029// ret1 = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
1030 return UNIXToOSSError(ret);
1031 }
1032
1033 //set silence threshold (all sizes in frames) (only needed for playback)
1034 if(pHandle->file.f_mode == FMODE_WRITE)
1035 {
1036 swparams.avail_min = periodsize;
1037 swparams.period_step = 1;
1038 if(nrperiods <= 2) {
1039 swparams.silence_size = (periodsize/2);
1040 }
1041 else {
1042 swparams.silence_size = periodsize;
1043 }
1044 swparams.silence_threshold = swparams.silence_size;
1045 swparams.sleep_min = 0;
1046 swparams.start_threshold = 1;
1047 swparams.stop_threshold = periodsize*nrperiods;
1048 swparams.tstamp_mode = SNDRV_PCM_TSTAMP_NONE;
1049 swparams.xfer_align = periodsize;
1050
1051 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SW_PARAMS, (ULONG)__Stack32ToFlat(&swparams));
1052 }
1053 total = 0;
1054 per_bytes = periodbytes;
1055 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1056 if ( ((status.state != SNDRV_PCM_STATE_PREPARED) &&
1057 (status.state != SNDRV_PCM_STATE_RUNNING) &&
1058 (status.state != SNDRV_PCM_STATE_DRAINING))) {
1059 printk("Device is not in proper state: %i. Calling prepare\n", status.state);
1060 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1061 }
1062 printk("OSS32_WaveSetHwParams return %d after SNDRV_PCM_IOCTL_SW_PARAMS ioctl, streamid %X", ret,(ULONG)pHandle);
1063 return UNIXToOSSError(ret);
1064}
1065
1066//******************************************************************************
1067ULONG CountWv=0;
1068ULONG LockAdd=0;
1069extern ULONG xchg( ULONG *p, ULONG x);
1070#pragma aux xchg = "xchg [esi],eax" parm [ESI][EAX] value [EAX];
1071//******************************************************************************
1072OSSRET OSS32_WaveAddBuffer(OSSSTREAMID streamid, ULONG buffer, ULONG size, ULONG *pTransferred, int pcm)
1073{
1074 soundhandle *pHandle = (soundhandle *)streamid;
1075 snd_pcm_status_t status;
1076 int ret, align, size1, ret1;
1077 LONG transferred;
1078 ULONG position,i,j;
1079 char *buf;
1080
1081// return OSSERR_SUCCESS;
1082
1083 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1084 DebugInt3();
1085 return OSSERR_INVALID_STREAMID;
1086 }
1087 if(pTransferred == NULL || buffer == 0 || size == 0) {
1088 DebugInt3();
1089 return OSSERR_INVALID_PARAMETER;
1090 }
1091
1092 //set operation to non-blocking
1093 pHandle->file.f_flags = O_NONBLOCK;
1094
1095 //first check how much room is left in the circular dma buffer
1096 //this is done to make sure we don't block inside ALSA while trying to write
1097 //more data than fits in the internal dma buffer.
1098 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1099
1100 if(ret) {
1101 DebugInt3();
1102 return UNIXToOSSError(ret);
1103 }
1104
1105 size1 = size;
1106
1107 size = min(size, samples_to_bytes(status.avail));
1108
1109#ifdef DEBUG_PK
1110 if (size1 != size)
1111 printk("requested size [%d] less then available [%d]\n", size1, size);
1112#endif
1113
1114 CountWv++;
1115
1116#ifdef DEBUG
1117 printk("OSS32_WaveAddBuffer N:%d hw %d app %d avail %d, orig size: %d, size %d\n",CountWv, samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr), samples_to_bytes(status.avail), size1, size);
1118#endif
1119
1120 if (size == 0)
1121 {
1122#ifdef DEBUG_PK
1123 printk("OSS32_WaveAddBuffer: no room left in hardware buffer!!\n");
1124 printk("state = %i\n",status.state);
1125 printk("avail = %i\n",status.avail);
1126 printk("size req = %i\n",size1);
1127#endif
1128 *pTransferred = 0;
1129 return OSSERR_BUFFER_FULL;
1130 }
1131
1132 transferred = 0;
1133 *pTransferred = 0;
1134 ret = -11;
1135 switch(SNDRV_MINOR_DEVICE(MINOR(pHandle->inode.i_rdev-pcm)))
1136 {
1137 case SNDRV_MINOR_PCM_PLAYBACK:
1138 // size should be aligned to channels number * samplesize //PS+++ what is it and why?!?!?!
1139 j = 10; // 10 try if error
1140 while (size && j && ret)
1141 {
1142 for (i=0; i < 1000; i++)
1143 {
1144 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1145 // If here any state and have free buffer to any byte
1146 if ((status.state != SNDRV_PCM_STATE_XRUN ) && samples_to_bytes(status.avail) )
1147 break;
1148 if (i > 998)
1149 {
1150// printk("timeout stat %x avail:%d hw:%d app:%d\n",status.state,samples_to_bytes(status.avail),samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr));
1151 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1152 }
1153 }
1154
1155 if (ret1 < 0)
1156 {
1157// printk("Status Error ret1:%i trans: %i need %d tot:%d\n",ret1,transferred, size,size1);
1158 break; // We have any global error, don't try more
1159 }
1160
1161 ret = pHandle->file.f_op->write(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1162
1163 if (ret < 0 )
1164 { // We have any error, don't try more
1165 j--;
1166 if ( ret != -11 )
1167 ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1168// printk("Error ret:%i ret1:%i trans: %d need %d tot:%d\n",ret,ret1,transferred, size,size1);
1169 continue;
1170 }
1171 if (ret == 0) continue;
1172 transferred += ret;
1173// printk("written: now: %d, trans: %d need %d tot:%d\n", ret, transferred, size,size1);
1174 buffer += ret;
1175 if (size > ret)
1176 size -= ret;
1177 else
1178 size = 0;
1179 }
1180 break;
1181 case SNDRV_MINOR_PCM_CAPTURE:
1182 transferred = pHandle->file.f_op->read(&pHandle->file, (char *)buffer, size, &pHandle->file.f_pos);
1183// printk("readed %i bytes\n", transferred);
1184 break;
1185 default:
1186 DebugInt3();
1187 return OSSERR_INVALID_PARAMETER;
1188 }
1189
1190 total += transferred;
1191 *pTransferred = transferred;
1192 prev_size = transferred;
1193 if (*pTransferred < size1)
1194 {
1195 printk("warning: transferred [%d] less than requested [%d]\n", *pTransferred, size1);
1196// ret1 = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_PREPARE, 0);
1197 }
1198
1199 return OSSERR_SUCCESS;
1200}
1201//******************************************************************************
1202//******************************************************************************
1203OSSRET OSS32_WaveGetPosition(ULONG streamid, ULONG *pPosition)
1204{
1205 soundhandle *pHandle = (soundhandle *)streamid;
1206 snd_pcm_status_t status;
1207 int ret;
1208 ULONG delta;
1209
1210 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1211 DebugInt3();
1212 return OSSERR_INVALID_STREAMID;
1213 }
1214 if(pPosition == NULL) {
1215 DebugInt3();
1216 return OSSERR_INVALID_PARAMETER;
1217 }
1218
1219 //set operation to non-blocking
1220 pHandle->file.f_flags = O_NONBLOCK;
1221
1222 //Get the status of the stream
1223 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1224
1225 if(ret) {
1226 DebugInt3();
1227 return UNIXToOSSError(ret);
1228 }
1229
1230 dprintf2(("OSS32_WaveGetPosition: hardware %x application %x", samples_to_bytes(status.hw_ptr), samples_to_bytes(status.appl_ptr)));
1231 *pPosition = samples_to_bytes(status.hw_ptr); //return new hardware position
1232 return OSSERR_SUCCESS;
1233}
1234//******************************************************************************
1235//******************************************************************************
1236OSSRET OSS32_WaveGetSpace(ULONG streamid, ULONG *pBytesAvail)
1237{
1238 soundhandle *pHandle = (soundhandle *)streamid;
1239 snd_pcm_status_t status;
1240 int ret;
1241
1242 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1243 DebugInt3();
1244 return OSSERR_INVALID_STREAMID;
1245 }
1246 if(pBytesAvail == NULL) {
1247 DebugInt3();
1248 return OSSERR_INVALID_PARAMETER;
1249 }
1250
1251 //set operation to non-blocking
1252 pHandle->file.f_flags = O_NONBLOCK;
1253
1254 //Get the nr of bytes left in the audio buffer
1255 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_STATUS, (ULONG)__Stack32ToFlat(&status));
1256
1257 if(ret) {
1258 DebugInt3();
1259 return UNIXToOSSError(ret);
1260 }
1261 ret = samples_to_bytes(status.avail);
1262 *pBytesAvail = ret > 752? ret - 752 : 0;
1263 return OSSERR_SUCCESS;
1264}
1265//******************************************************************************
1266//******************************************************************************
1267OSSRET OSS32_WaveSetVolume(OSSSTREAMID streamid, ULONG volume)
1268{
1269 soundhandle *pHandle = (soundhandle *)streamid;
1270 int ret;
1271 int leftvol, rightvol;
1272 struct snd_pcm_volume pcm_volume;
1273
1274 if(pHandle == NULL || pHandle->magic != MAGIC_WAVE_ALSA32) {
1275 DebugInt3();
1276 return OSSERR_INVALID_STREAMID;
1277 }
1278 //set operation to non-blocking
1279 pHandle->file.f_flags = O_NONBLOCK;
1280
1281 leftvol = GET_VOLUME_L(volume);
1282 rightvol = GET_VOLUME_R(volume);
1283
1284 pcm_volume.nrchannels = 4;
1285 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_LEFT] = leftvol;
1286 pcm_volume.volume[SNDRV_PCM_VOL_FRONT_RIGHT] = rightvol;
1287 pcm_volume.volume[SNDRV_PCM_VOL_REAR_LEFT] = leftvol;
1288 pcm_volume.volume[SNDRV_PCM_VOL_REAR_RIGHT] = rightvol;
1289
1290 dprintf(("OSS32_WaveSetVolume %x to (%d,%d)", streamid, leftvol, rightvol));
1291 ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_PCM_IOCTL_SETVOLUME, (ULONG)__Stack32ToFlat(&pcm_volume));
1292 return UNIXToOSSError(ret);
1293}
1294//******************************************************************************
1295//******************************************************************************
1296
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