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source: GPL/branches/uniaud32-2.1.x/lib32/soundmixer.c@ 531

Last change on this file since 531 was 531, checked in by David Azarewicz, 15 years ago
merge changes from trunk
File size: 30.0 KB

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1	/* $Id: soundmixer.c,v 1.1.1.1 2003/07/02 13:57:02 eleph 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/core.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 <stacktoflat.h>
37	#include <stdlib.h>
38	#include "soundoss.h"
39
40	extern OpenedHandles opened_handles[8 * 256]; // from sound.c
41
42	static struct {
43	char *name;
44	unsigned int index;
45	unsigned int recsrc;
46	} ossid[OSS_MIXER_NRDEVICES] = {
47	/* OSS_MIXER_VOLUME */ { "Master", 0 , -1},
48	/* OSS_MIXER_BASS */ { "Tone Control - Bass", 0, -1},
49	/* OSS_MIXER_TREBLE */ { "Tone Control - Treble", 0, -1},
50	/* OSS_MIXER_SYNTH */ { "Synth", 0 , OSS32_MIX_RECSRC_SYNTH},
51	/* OSS_MIXER_PCM */ { "PCM", 0 , -1},
52	/* OSS_MIXER_PCSPEAKER */ { "PC Speaker", 0 , -1},
53	/* OSS_MIXER_LINE */ { "Line", 0 , OSS32_MIX_RECSRC_LINE},
54	/* OSS_MIXER_MIC */ { "Mic", 0, OSS32_MIX_RECSRC_MIC},
55	/* OSS_MIXER_CD */ { "CD", 0 , OSS32_MIX_RECSRC_CD},
56	/* OSS_MIXER_IMIX */ { "Monitor Mix", 0 , OSS32_MIX_RECSRC_MIXER},
57	/* OSS_MIXER_ALTPCM */ { "PCM", 1 , -1},
58	/* OSS_MIXER_RECLEV */ { "-- nothing --", 0 , -1},
59	/* OSS_MIXER_IGAIN */ { "Capture", 0 , -1},
60	/* OSS_MIXER_OGAIN */ { "Playback", 0 , -1},
61	/* OSS_MIXER_LINE1 */ { "Aux", 0 , OSS32_MIX_RECSRC_AUX},
62	/* OSS_MIXER_LINE2 */ { "Aux", 1 , -1},
63	/* OSS_MIXER_LINE3 */ { "Aux", 2 , -1},
64	/* OSS_MIXER_DIGITAL1 */ { "Digital", 0 , -1},
65	/* OSS_MIXER_DIGITAL2 */ { "Digital", 1 , -1},
66	/* OSS_MIXER_DIGITAL3 */ { "Digital", 2 , -1},
67	/* OSS_MIXER_PHONEIN */ { "Phone", 0 , OSS32_MIX_RECSRC_PHONE},
68	/* OSS_MIXER_PHONEOUT */ { "Phone", 1 , -1},
69	/* OSS_MIXER_VIDEO */ { "Video", 0 , OSS32_MIX_RECSRC_VIDEO},
70	/* OSS_MIXER_RADIO */ { "Radio", 0 , -1},
71	/* OSS_MIXER_MONITOR */ { "Monitor", 0 , -1},
72	/* OSS_MIXER_3DDEPTH */ { "3D Control - Depth", 0 , -1},
73	/* OSS_MIXER_3DCENTER */ { "3D Control - Center", 0 , -1},
74	/* OSS_MIXER_FRONT */ { "Front", 0 , -1},
75	/* OSS_MIXER_SPEAKER */ { "Speaker", 0 , -1},
76	/* OSS_MIXER_HEADPHONE */ { "Headphone", 0 , -1},
77	};
78	char *szRecSources[OSS32_MIX_RECSRC_MAX] = {
79	"Mic", "CD", "Line", "Video", "Aux", "Mix", "Mix Mono", "Phone", "Synth"
80	};
81
82	static unsigned char LinToLog[OSS32_MAX_VOLUME+1] = {
83	0, 0, 0, 0, 1, 2, 2, 5, 5, 10,
84	10, 10, 16, 19, 20, 22, 24, 25, 27, 27,
85	28, 28, 29, 30, 30, 35, 35, 35, 39, 39,
86	43, 44, 45, 47, 48, 49, 50, 51, 52, 53,
87	55, 56, 57, 59, 60, 62, 63, 64, 65, 66,
88	67, 68, 69, 70, 71, 72, 73, 74, 74, 75,
89	76, 77, 78, 79, 79, 80, 81, 82, 83, 84,
90	85, 86, 87, 88, 89, 90, 91, 92, 92, 93,
91	93, 94, 94, 95, 95, 96, 96, 97, 97, 98,
92	98, 99, 99, 99, 99, 100, 100, 100, 100, 100,
93	100
94	};
95
96	//******************************************************************************
97	//Convert linear volume to logarithmic
98	//******************************************************************************
99	ULONG ConvertVolume(ULONG ulLinVolume, ULONG ulLogVolMax)
100	{
101	if(ulLinVolume > OSS32_MAX_VOLUME) {
102	ulLinVolume = OSS32_MAX_VOLUME;
103	}
104	ulLinVolume = LinToLog[ulLinVolume];
105
106	return (ulLinVolume * ulLogVolMax) / OSS32_MAX_VOLUME;
107	}
108
109	//******************************************************************************
110	//******************************************************************************
111	OSSRET OSS32_MixOpen(ULONG deviceid, OSSSTREAMID *pStreamId)
112	{
113	mixerhandle *pHandle = NULL;
114	int ret, i, j, sz;
115
116	if(pStreamId == NULL) {
117	DebugInt3();
118	return OSSERR_INVALID_PARAMETER;
119	}
120	*pStreamId = 0;
121
122	if(alsa_fops == NULL) {
123	ret = OSSERR_NO_DEVICE_AVAILABLE;
124	goto failure;
125	}
126
127	sz = sizeof(mixerhandle);
128	pHandle = kmalloc(sz, GFP_KERNEL);
129	if(pHandle == NULL) {
130	ret = OSSERR_OUT_OF_MEMORY;
131	goto failure;
132	}
133	memset(pHandle, 0, sizeof(mixerhandle));
134
135	//set operation to non-blocking
136	pHandle->file.f_flags = O_NONBLOCK;
137
138	//setup pointers in file structure (used internally by ALSA)
139	pHandle->file.f_dentry = &pHandle->d_entry;
140	pHandle->file.f_dentry->d_inode = &pHandle->inode;
141
142	pHandle->file.f_mode = FMODE_WRITE;
143	pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_CONTROL);
144
145	ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
146	if(ret) {
147	goto failure;
148	}
149	//retrieve mixer information
150	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
151	SNDRV_CTL_IOCTL_CARD_INFO,
152	(ULONG)&pHandle->info);
153	if(ret) {
154	goto failure;
155	}
156	//get the number of mixer elements
157	pHandle->list.offset = 0;
158	pHandle->list.space = 0;
159	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
160	SNDRV_CTL_IOCTL_ELEM_LIST,
161	(ULONG)&pHandle->list);
162	if(ret) {
163	goto failure;
164	}
165	//allocate memory for all mixer elements
166	pHandle->pids = (struct snd_ctl_elem_id )kmalloc(sizeof(struct snd_ctl_elem_id)pHandle->list.count, GFP_KERNEL);
167	if(pHandle->pids == NULL) {
168	goto failure;
169	}
170	//and retrieve all mixer elements
171	pHandle->list.offset = 0;
172	pHandle->list.space = pHandle->list.count;
173	pHandle->list.pids = pHandle->pids;
174	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
175	SNDRV_CTL_IOCTL_ELEM_LIST,
176	(ULONG)&pHandle->list);
177	if(ret) {
178	goto failure;
179	}
180
181	#if 0
182	dprintf(("Mixer name: %s", pHandle->info.mixername));
183	dprintf(("List of mixer elements:"));
184	for(i=0;i<pHandle->list.count;i++) {
185	dprintf(("index %d name %s id %d device %d subdevice %d", pHandle->pids[i].index, pHandle->pids[i].name, pHandle->pids[i].numid, pHandle->pids[i].device, pHandle->pids[i].subdevice));
186	}
187	#endif
188
189	//Extract standard mixer controls from array with control names
190	for(j=0;j<OSS_MIXER_NRDEVICES;j++)
191	{
192	int namelen = strlen(ossid[j].name);
193
194	pHandle->controls[j].idxVolume = -1;
195	pHandle->controls[j].idxMute = -1;
196	pHandle->controls[j].idxCustom = -1;
197	pHandle->controls[j].idxCaptureSwitch = -1;
198
199	for(i=0;i<pHandle->list.count;i++) {
200	if (pHandle->pids[i].index == ossid[j].index && strncmp(pHandle->pids[i].name, ossid[j].name, namelen) == 0) {
201	int controlnamelen = strlen(pHandle->pids[i].name);
202
203	if(namelen == controlnamelen) { //control names are identical; found exact match
204	pHandle->controls[j].idxVolume = i;
205	break;
206	} else { //first part of the control name is correct; now find out what is it exactly
207	char *nextword = &pHandle->pids[i].name[namelen];
208	while(nextword && nextword == ' ') nextword++;
209
210	if(strncmp(nextword, MIXER_PLAYBACKVOLUME, sizeof(MIXER_PLAYBACKVOLUME)-1) == 0 \|\|
211	strncmp(nextword, MIXER_VOLUME, sizeof(MIXER_VOLUME)-1) == 0)
212	{ //volume control
213	pHandle->controls[j].idxVolume = i;
214	}
215	else
216	if(strncmp(nextword, MIXER_PLAYBACKSWITCH, sizeof(MIXER_PLAYBACKSWITCH)-1) == 0 \|\|
217	strncmp(nextword, MIXER_SWITCH, sizeof(MIXER_SWITCH)-1) == 0)
218	{ //mute control
219	pHandle->controls[j].idxMute = i;
220	if (pHandle->controls[j].idxVolume == -1) pHandle->controls[j].idxVolume = i;
221	}
222	else
223	if(strncmp(nextword, MIXER_SOURCE, sizeof(MIXER_SOURCE)-1) == 0)
224	{ //source control (e.g. recording source)
225	pHandle->controls[j].idxCustom = i;
226	}
227	else
228	if(strncmp(nextword, MIXER_CAPTUREROUTE, sizeof(MIXER_CAPTUREROUTE)-1) == 0 \|\|
229	strncmp(nextword, MIXER_CAPTURESWITCH, sizeof(MIXER_CAPTURESWITCH)-1) == 0)
230	{ //source control for recording (per input)
231	pHandle->controls[j].idxCaptureSwitch = i;
232	}
233	else
234	if(i == OSS_MIXER_MIC) {
235	if(strncmp(nextword, MIXER_BOOST, sizeof(MIXER_BOOST)-1) == 0) { //mic boost switch
236	pHandle->controls[j].idxCustom = i;
237	}
238	}
239	}
240	}
241	}
242	}
243
244	pHandle->reccaps = 0;
245	for (j=0;j<OSS32_MIX_RECSRC_MAX;j++) {
246	pHandle->idxRecCaps[j] = -1;
247	}
248
249	//request information about available capture sources
250	if (pHandle->controls[OSS_MIXER_IGAIN].idxCustom != -1) {
251	struct snd_ctl_elem_info *pElemInfo = NULL;
252	int idx, j;
253
254	idx = pHandle->controls[OSS_MIXER_IGAIN].idxCustom;
255
256	//set operation to non-blocking
257	pHandle->file.f_flags = O_NONBLOCK;
258
259	pHandle->rectype = RECTYPE_SELECTOR;
260
261	//too big to put on the stack
262	pElemInfo = (struct snd_ctl_elem_info *)kmalloc(sizeof(struct snd_ctl_elem_info), GFP_KERNEL);
263	if(pElemInfo == NULL) {
264	DebugInt3();
265	goto failure;
266	}
267
268	pElemInfo->value.enumerated.items = 1;
269	for(i=0;i<pElemInfo->value.enumerated.items;i++)
270	{
271	pElemInfo->value.enumerated.item = i;
272	pElemInfo->id.numid = pHandle->pids[idx].numid;
273	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
274	if(ret) {
275	DebugInt3();
276	break;
277	}
278	if(pElemInfo->type != SNDRV_CTL_ELEM_TYPE_ENUMERATED) {
279	DebugInt3();
280	break;
281	}
282	for(j=0;j<OSS32_MIX_RECSRC_MAX;j++) {
283	if(!strcmp(pElemInfo->value.enumerated.name, szRecSources[j])) {
284	pHandle->reccaps \|= OSS32_MIX_FLAG(j);
285	pHandle->idxRecCaps[j] = i; //save alsa index
286	break;
287	}
288	}
289	}
290	kfree(pElemInfo);
291	}
292	else
293	{//This card has no record source selection, but probably route switches for
294	//each input source (SB mixers (also ALS4000), CMedia)
295	pHandle->rectype = RECTYPE_SWITCH;
296	for(j=0;j<OSS32_MIX_RECSRC_MAX;j++) {
297	pHandle->idxRecCaps[j] = -1;
298	}
299	for(j=0;j<OSS_MIXER_NRDEVICES;j++)
300	{
301	if(pHandle->controls[j].idxCaptureSwitch != -1) {
302	pHandle->reccaps \|= OSS32_MIX_FLAG(ossid[j].recsrc);
303	pHandle->idxRecCaps[ossid[j].recsrc] = pHandle->controls[j].idxCaptureSwitch; //save alsa index
304	}
305	}
306	}
307
308	pHandle->magic = MAGIC_MIXER_ALSA32;
309	*pStreamId = (ULONG)pHandle;
310	return OSSERR_SUCCESS;
311
312	failure:
313	if(pHandle) {
314	if(pHandle->pids) kfree(pHandle->pids);
315	kfree(pHandle);
316	}
317	DebugInt3();
318	return OSSERR_OUT_OF_MEMORY;
319	}
320	//******************************************************************************
321	//******************************************************************************
322	OSSRET OSS32_MixClose(OSSSTREAMID streamid)
323	{
324	mixerhandle pHandle = (mixerhandle )streamid;
325	int ret;
326
327	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
328	DebugInt3();
329	return OSSERR_INVALID_STREAMID;
330	}
331	//set operation to non-blocking
332	pHandle->file.f_flags = O_NONBLOCK;
333	ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
334	kfree(pHandle->pids); //free mixer element array
335	kfree(pHandle); //free handle data
336
337	if(ret) {
338	DebugInt3();
339	return UNIXToOSSError(ret);
340	}
341	return OSSERR_SUCCESS;
342	}
343	//******************************************************************************
344	//******************************************************************************
345	OSSRET OSS32_MixGetVolume(OSSSTREAMID streamid, ULONG line, ULONG *pVolume)
346	{
347	mixerhandle pHandle = (mixerhandle )streamid;
348	int ret;
349
350	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
351	DebugInt3();
352	return OSSERR_INVALID_STREAMID;
353	}
354	//set operation to non-blocking
355	pHandle->file.f_flags = O_NONBLOCK;
356
357	return OSSERR_NOT_SUPPORTED;
358	}
359	//******************************************************************************
360	//******************************************************************************
361	OSSRET OSS32_MixSetVolume(OSSSTREAMID streamid, ULONG line, ULONG volume)
362	{
363	mixerhandle pHandle = (mixerhandle )streamid;
364	struct snd_ctl_elem_value *pElem = NULL;
365	struct snd_ctl_elem_info *pElemInfo;
366	int ret, idx, lVol, rVol = 0, idxMute, cnt;
367
368	//dprintf(("OSS32_MixSetVolume line=%d\n", line));
369	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
370	printk("Invalid handle in OSS32_MixSetVolume\n");
371	DebugInt3();
372	return OSSERR_INVALID_STREAMID;
373	}
374	//set operation to non-blocking
375	pHandle->file.f_flags = O_NONBLOCK;
376
377	//too big to put on the stack
378	pElem = (struct snd_ctl_elem_value *)kmalloc(sizeof(struct snd_ctl_elem_value) + sizeof(struct snd_ctl_elem_info), GFP_KERNEL);
379	if(pElem == NULL) {
380	printk("Out of memory in OSS32_MixSetVolume\n");
381	DebugInt3();
382	return OSSERR_OUT_OF_MEMORY;
383	}
384	pElemInfo = (struct snd_ctl_elem_info *)(pElem+1);
385
386	switch(line) {
387	case OSS32_MIX_VOLUME_MASTER_FRONT:
388	idx = pHandle->controls[OSS_MIXER_VOLUME].idxVolume;
389	idxMute = pHandle->controls[OSS_MIXER_VOLUME].idxMute;
390	if (idx == -1)
391	{
392	/* HDA codecs workaround */
393	idx = pHandle->controls[OSS_MIXER_FRONT].idxVolume;
394	idxMute = pHandle->controls[OSS_MIXER_FRONT].idxMute;
395	}
396	break;
397	case OSS32_MIX_VOLUME_MASTER_REAR: //TODO:
398	idx = pHandle->controls[OSS_MIXER_VOLUME].idxVolume;
399	idxMute = pHandle->controls[OSS_MIXER_VOLUME].idxMute;
400	break;
401	case OSS32_MIX_VOLUME_PCM:
402	idx = pHandle->controls[OSS_MIXER_PCM].idxVolume;
403	idxMute = pHandle->controls[OSS_MIXER_PCM].idxMute;
404	if (idx == -1)
405	{
406	/* HDA codecs workaround */
407	idx = pHandle->controls[OSS_MIXER_FRONT].idxVolume;
408	idxMute = pHandle->controls[OSS_MIXER_FRONT].idxMute;
409	}
410	break;
411	case OSS32_MIX_VOLUME_MIDI:
412	idx = pHandle->controls[OSS_MIXER_SYNTH].idxVolume;
413	idxMute = pHandle->controls[OSS_MIXER_SYNTH].idxMute;
414	break;
415	case OSS32_MIX_VOLUME_LINEIN:
416	idx = pHandle->controls[OSS_MIXER_LINE].idxVolume;
417	idxMute = pHandle->controls[OSS_MIXER_LINE].idxMute;
418	break;
419	case OSS32_MIX_VOLUME_MIC:
420	idx = pHandle->controls[OSS_MIXER_MIC].idxVolume;
421	idxMute = pHandle->controls[OSS_MIXER_MIC].idxMute;
422	break;
423	case OSS32_MIX_VOLUME_CD:
424	idx = pHandle->controls[OSS_MIXER_CD].idxVolume;
425	idxMute = pHandle->controls[OSS_MIXER_CD].idxMute;
426	break;
427	case OSS32_MIX_VOLUME_SPDIF:
428	idx = pHandle->controls[OSS_MIXER_DIGITAL1].idxVolume;
429	idxMute = pHandle->controls[OSS_MIXER_DIGITAL1].idxMute;
430	break;
431	case OSS32_MIX_VOLUME_VIDEO:
432	idx = pHandle->controls[OSS_MIXER_VIDEO].idxVolume;
433	idxMute = pHandle->controls[OSS_MIXER_VIDEO].idxMute;
434	break;
435	case OSS32_MIX_VOLUME_PCSPEAKER:
436	idx = pHandle->controls[OSS_MIXER_PCSPEAKER].idxVolume;
437	idxMute = pHandle->controls[OSS_MIXER_PCSPEAKER].idxMute;
438	break;
439	case OSS32_MIX_VOLUME_PHONE:
440	idx = pHandle->controls[OSS_MIXER_PHONEOUT].idxVolume;
441	idxMute = pHandle->controls[OSS_MIXER_PHONEOUT].idxMute;
442	break;
443	case OSS32_MIX_VOLUME_HEADPHONE:
444	idx = pHandle->controls[OSS_MIXER_HEADPHONE].idxVolume;
445	idxMute = pHandle->controls[OSS_MIXER_HEADPHONE].idxMute;
446	break;
447	case OSS32_MIX_VOLUME_SPEAKER:
448	idx = pHandle->controls[OSS_MIXER_SPEAKER].idxVolume;
449	idxMute = pHandle->controls[OSS_MIXER_SPEAKER].idxMute;
450	break;
451	case OSS32_MIX_VOLUME_AUX:
452	idx = pHandle->controls[OSS_MIXER_LINE1].idxVolume;
453	idxMute = pHandle->controls[OSS_MIXER_LINE1].idxMute;
454	break;
455	case OSS32_MIX_VOLUME_CAPTURE:
456	idx = pHandle->controls[OSS_MIXER_IGAIN].idxVolume;
457	idxMute = pHandle->controls[OSS_MIXER_IGAIN].idxMute;
458	break;
459
460	default:
461	DebugInt3();
462	ret = OSSERR_INVALID_PARAMETER;
463	goto fail;
464	}
465	if(idx == -1) {
466	rprintf(("Unknown control %d", line));
467	ret = OSSERR_INVALID_PARAMETER;
468	goto fail;
469	}
470
471	if(idxMute != -1 && volume != 0) {
472	//disable mute
473	pElem->id.numid = pHandle->pids[idxMute].numid;
474	pElem->indirect = 0;
475
476	pElem->value.integer.value[0] = TRUE; //switch, not mute control (inversed)
477	pElem->value.integer.value[1] = TRUE;
478	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
479	}
480	//request information about mixer control
481	pElemInfo->id.numid = pHandle->pids[idx].numid;
482	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
483	if(ret) {
484	ret = UNIXToOSSError(ret);
485	DebugInt3();
486	goto fail;
487	}
488	if(pElemInfo->type != SNDRV_CTL_ELEM_TYPE_INTEGER) {
489	ret = OSSERR_INVALID_PARAMETER;
490	DebugInt3();
491	goto fail;
492	}
493	pElem->id.numid = pHandle->pids[idx].numid;
494	pElem->indirect = 0;
495
496	lVol = ConvertVolume(GET_VOLUME_L(volume), pElemInfo->value.integer.max);
497	pElem->value.integer.value[0] = lVol;
498
499	if(pElemInfo->count > 1) { //stereo
500	rVol = ConvertVolume(GET_VOLUME_R(volume), pElemInfo->value.integer.max);
501	pElem->value.integer.value[1] = rVol;
502	}
503
504	dprintf(("OSS32_MixSetVolume of %s streamid %X to (%d,%d)(%d,%d) caps %d",
505	pHandle->pids[idx].name, (ULONG)pHandle,
506	GET_VOLUME_L(volume), GET_VOLUME_R(volume), lVol, rVol, pElemInfo->value.integer.max));
507
508	#if 1
509	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
510	#else
511	// looking for more, then one opened streams to prevent of muting active stream
512	cnt = 0;
513	for (idx=0; idx < 8*256; idx++)
514	if (opened_handles[idx].handle != 0)
515	cnt++;
516
517	dprintf(("OSS32_MixSetVolume old cnt=%X line=%x lVol=%x rVol=%x", cnt, line, lVol, rVol));
518	// if (((cnt == 1 && (lVol==0 && rVol==0)) \|\| (lVol>0 && rVol>0)) \|\|
519	if (cnt == 1 \|\| line != OSS32_MIX_VOLUME_PCM)
520	{
521	dprintf(("OSS32_MixSetVolume Ioctl"));
522	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
523
524	if(idxMute != -1 && volume == 0) {
525	//enable mute
526	pElem->id.numid = pHandle->pids[idxMute].numid;
527	pElem->indirect = 0;
528
529	pElem->value.integer.value[0] = FALSE; //switch, not mute control (inversed)
530	pElem->value.integer.value[1] = FALSE;
531	dprintf(("OSS32_MixSetVolume Ioctl mute"));
532	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
533	}
534	}
535	#endif
536
537	kfree(pElem);
538	pElem = NULL;
539	if(ret) {
540	rprintf(("OSS32_MixSetVolume ret=%x", ret));
541	DebugInt3();
542	return UNIXToOSSError(ret);
543	}
544	return OSSERR_SUCCESS;
545
546	fail:
547	if(pElem) kfree(pElem);
548	return ret;
549	}
550	//******************************************************************************
551	//******************************************************************************
552	OSSRET OSS32_MixSetProperty(OSSSTREAMID streamid, ULONG ulLine, ULONG ulValue)
553	{
554	mixerhandle pHandle = (mixerhandle )streamid;
555	struct snd_ctl_elem_value *pElem = NULL;
556	struct snd_ctl_elem_info *pElemInfo;
557	int ret, idx = -1, lVol, rVol = 0, j, i;
558
559	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
560	DebugInt3();
561	return OSSERR_INVALID_STREAMID;
562	}
563	//set operation to non-blocking
564	pHandle->file.f_flags = O_NONBLOCK;
565
566	//too big to put on the stack
567	pElem = (struct snd_ctl_elem_value *)kmalloc(sizeof(struct snd_ctl_elem_value) + sizeof(struct snd_ctl_elem_info), GFP_KERNEL);
568	if(pElem == NULL) {
569	DebugInt3();
570	return OSSERR_OUT_OF_MEMORY;
571	}
572	pElemInfo = (struct snd_ctl_elem_info *)(pElem+1);
573
574	switch(ulLine) {
575	case OSS32_MIX_INPUTSRC:
576	idx = pHandle->controls[OSS_MIXER_IGAIN].idxCustom;
577	//is this capture source supported by the hardware??
578	if(!(pHandle->reccaps & OSS32_MIX_FLAG(ulValue))) {
579	DebugInt3();
580	ret = OSSERR_INVALID_PARAMETER;
581	goto fail;
582	}
583	if(pHandle->rectype == RECTYPE_SELECTOR) {//input source selector
584	//set left and right capture source
585	pElem->value.enumerated.item[0] = pHandle->idxRecCaps[ulValue];
586	pElem->value.enumerated.item[1] = pHandle->idxRecCaps[ulValue];
587	}
588	else {//capture switch for each input source
589	//first turn off all capture switches...
590	for(j=0;j<OSS32_MIX_RECSRC_MAX;j++)
591	{
592	if(pHandle->idxRecCaps[j] != -1) {
593	idx = pHandle->idxRecCaps[j];
594
595	//request information about mixer control
596	pElemInfo->id.numid = pHandle->pids[idx].numid;
597	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
598	if(ret) {
599	ret = UNIXToOSSError(ret);
600	DebugInt3();
601	goto fail;
602	}
603	if(pElemInfo->type != SNDRV_CTL_ELEM_TYPE_BOOLEAN) {
604	ret = OSSERR_INVALID_PARAMETER;
605	DebugInt3();
606	goto fail;
607	}
608
609	pElem->id.numid = pHandle->pids[idx].numid;
610	pElem->indirect = 0;
611	for(i=0;i<pElemInfo->count;i++) {
612	pElem->value.integer.value[i] = 0;
613	}
614
615	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
616	if(ret) {
617	ret = UNIXToOSSError(ret);
618	DebugInt3();
619	goto fail;
620	}
621	}
622	}
623	//request information about mixer control
624	pElemInfo->id.numid = pHandle->pids[idx].numid;
625	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
626	if(ret) {
627	ret = UNIXToOSSError(ret);
628	DebugInt3();
629	goto fail;
630	}
631
632	//and enable the capture switch for the selected input source
633	idx = pHandle->idxRecCaps[ulValue];
634	for(i=0;i<pElemInfo->count;i++) {
635	pElem->value.integer.value[i] = 1;
636	}
637	}
638
639	break;
640
641	case OSS32_MIX_SWITCH_MICBOOST:
642	idx = pHandle->controls[OSS_MIXER_MIC].idxCustom;
643	if(idx == -1) {
644	DebugInt3();
645	ret = OSSERR_INVALID_PARAMETER;
646	goto fail;
647	}
648	//set mic switch value (on/off)
649	pElem->value.integer.value[0] = ulValue;
650	break;
651
652	case OSS32_MIX_LEVEL_BASS:
653	idx = pHandle->controls[OSS_MIXER_BASS].idxVolume;
654	goto levelcontinue;
655	case OSS32_MIX_LEVEL_TREBLE:
656	idx = pHandle->controls[OSS_MIXER_TREBLE].idxVolume;
657	goto levelcontinue;
658	case OSS32_MIX_LEVEL_3DCENTER:
659	idx = pHandle->controls[OSS_MIXER_3DCENTER].idxVolume;
660	goto levelcontinue;
661	case OSS32_MIX_LEVEL_3DDEPTH:
662	idx = pHandle->controls[OSS_MIXER_3DDEPTH].idxVolume;
663	levelcontinue:
664
665	if(idx == -1) {//supported?
666	DebugInt3();
667	ret = OSSERR_INVALID_PARAMETER;
668	goto fail;
669	}
670	//request information about mixer control
671	pElemInfo->id.numid = pHandle->pids[idx].numid;
672	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
673	if(ret) {
674	ret = UNIXToOSSError(ret);
675	DebugInt3();
676	goto fail;
677	}
678	if(pElemInfo->type != SNDRV_CTL_ELEM_TYPE_INTEGER) {
679	ret = OSSERR_INVALID_PARAMETER;
680	DebugInt3();
681	goto fail;
682	}
683	lVol = ConvertVolume(GET_VOLUME_L(ulValue), pElemInfo->value.integer.max);
684	pElem->value.integer.value[0] = lVol;
685
686	if(pElemInfo->count > 1) { //stereo
687	rVol = ConvertVolume(GET_VOLUME_R(ulValue), pElemInfo->value.integer.max);
688	pElem->value.integer.value[1] = rVol;
689	}
690	break;
691
692	default:
693	DebugInt3();
694	ret = OSSERR_INVALID_PARAMETER;
695	goto fail;
696	}
697	pElem->id.numid = pHandle->pids[idx].numid;
698	pElem->indirect = 0;
699
700	dprintf(("OSS32_MixSetProperty of %s to %x", pHandle->pids[idx].name, ulValue));
701	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
702
703	kfree(pElem);
704	pElem = NULL;
705	if(ret) {
706	DebugInt3();
707	return UNIXToOSSError(ret);
708	}
709	return OSSERR_SUCCESS;
710
711	fail:
712	if(pElem) kfree(pElem);
713	return ret;
714	}
715	//******************************************************************************
716	//******************************************************************************
717	OSSRET OSS32_MixGetProperty(OSSSTREAMID streamid, ULONG line, ULONG *pValue)
718	{
719	mixerhandle pHandle = (mixerhandle )streamid;
720	int ret;
721
722	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
723	DebugInt3();
724	return OSSERR_INVALID_STREAMID;
725	}
726	//set operation to non-blocking
727	pHandle->file.f_flags = O_NONBLOCK;
728
729	return OSSERR_NOT_SUPPORTED;
730	}
731	//******************************************************************************
732	//******************************************************************************
733	ULONG OSSToALSAVolume(ULONG OSSVolIdx)
734	{
735	switch(OSSVolIdx) {
736	case OSS_MIXER_VOLUME:
737	return OSS32_MIX_VOLUME_MASTER_FRONT;
738	#if 0
739	case OSS_MIXER_VOLUME: //TODO:
740	return OSS32_MIX_VOLUME_MASTER_REAR;
741	#endif
742	case OSS_MIXER_PCM:
743	return OSS32_MIX_VOLUME_PCM;
744	case OSS_MIXER_SYNTH:
745	return OSS32_MIX_VOLUME_MIDI;
746	case OSS_MIXER_LINE:
747	return OSS32_MIX_VOLUME_LINEIN;
748	case OSS_MIXER_MIC:
749	return OSS32_MIX_VOLUME_MIC;
750	case OSS_MIXER_CD:
751	return OSS32_MIX_VOLUME_CD;
752	case OSS_MIXER_DIGITAL1:
753	return OSS32_MIX_VOLUME_SPDIF;
754	case OSS_MIXER_VIDEO:
755	return OSS32_MIX_VOLUME_VIDEO;
756	case OSS_MIXER_PCSPEAKER:
757	return OSS32_MIX_VOLUME_PCSPEAKER;
758	case OSS_MIXER_PHONEOUT:
759	return OSS32_MIX_VOLUME_PHONE;
760	case OSS_MIXER_IGAIN:
761	return OSS32_MIX_VOLUME_CAPTURE;
762	case OSS_MIXER_TREBLE:
763	return OSS32_MIX_LEVEL_TREBLE;
764	case OSS_MIXER_BASS:
765	return OSS32_MIX_LEVEL_BASS;
766	case OSS_MIXER_HEADPHONE:
767	return OSS32_MIX_VOLUME_HEADPHONE;
768	case OSS_MIXER_SPEAKER:
769	return OSS32_MIX_VOLUME_SPEAKER;
770	case OSS_MIXER_LINE1:
771	return OSS32_MIX_VOLUME_AUX;
772	}
773	return -1;
774	}
775	//******************************************************************************
776	//******************************************************************************
777	OSSRET OSS32_MixQueryCaps(OSSSTREAMID streamid, POSS32_MIXCAPS pCaps)
778	{
779	mixerhandle pHandle = (mixerhandle )streamid;
780	int i;
781
782	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
783	DebugInt3();
784	return OSSERR_INVALID_STREAMID;
785	}
786
787	strncpy(pCaps->name, pHandle->info.mixername, sizeof(pCaps->name));
788	pCaps->fuCtrlCaps = 0;
789	pCaps->fuRecCaps = 0;
790
791	for(i=0;i<OSS_MIXER_NRDEVICES;i++)
792	{
793	if(pHandle->controls[i].idxVolume != -1) {
794	ULONG volidx = OSSToALSAVolume(i);
795	if(volidx != -1)
796	pCaps->fuCtrlCaps \|= OSS32_MIX_FLAG(volidx);
797	}
798	}
799
800	//if it has a capture source control or the card has capture route switches,
801	//then we support intput source selection
802	if(pHandle->controls[OSS_MIXER_IGAIN].idxCustom != -1 \|\|
803	pHandle->rectype == RECTYPE_SWITCH)
804	{
805	pCaps->fuCtrlCaps \|= OSS32_MIX_FLAG(OSS32_MIX_INPUTSRC);
806	pCaps->fuRecCaps = pHandle->reccaps;
807	}
808	return OSSERR_SUCCESS;
809	}
810	//******************************************************************************
811	//******************************************************************************
812	OSSRET OSS32_MixQueryName(ULONG deviceid, char *pszMixerName, ULONG cbMixerName)
813	{
814	mixerhandle *pHandle = NULL;
815	int ret, i, j;
816
817	if(alsa_fops == NULL)
818	return OSSERR_NO_DEVICE_AVAILABLE;
819
820	pHandle = kmalloc(sizeof(mixerhandle), GFP_KERNEL);
821	if(pHandle == NULL) {
822	ret = OSSERR_OUT_OF_MEMORY;
823	goto failure;
824	}
825	memset(pHandle, 0, sizeof(mixerhandle));
826
827	//set operation to non-blocking
828	pHandle->file.f_flags = O_NONBLOCK;
829
830	//setup pointers in file structure (used internally by ALSA)
831	pHandle->file.f_dentry = &pHandle->d_entry;
832	pHandle->file.f_dentry->d_inode = &pHandle->inode;
833
834	pHandle->file.f_mode = FMODE_WRITE;
835	pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_CONTROL);
836
837	ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
838	if(ret) {
839	goto failure;
840	}
841	//retrieve mixer information
842	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
843	SNDRV_CTL_IOCTL_CARD_INFO,
844	(ULONG)&pHandle->info);
845	if(ret) {
846	goto failure;
847	}
848
849	strncpy(pszMixerName, pHandle->info.mixername, cbMixerName);
850
851	pHandle->file.f_flags = O_NONBLOCK;
852	ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
853	if(ret) {
854	goto failure;
855	}
856	kfree(pHandle);
857	return OSSERR_SUCCESS;
858
859	failure:
860	if(pHandle) {
861	kfree(pHandle);
862	}
863	DebugInt3();
864	return OSSERR_OUT_OF_MEMORY;
865	}
866	//******************************************************************************
867	//******************************************************************************
868	OSSRET OSS32_QueryNames(ULONG deviceid, char *pszDeviceName, ULONG cbDeviceName,
869	char *pszMixerName, ULONG cbMixerName, BOOL fLongName)
870	{
871	mixerhandle *pHandle = NULL;
872	int ret, i, j;
873
874	if(alsa_fops == NULL) {
875	ret = OSSERR_NO_DEVICE_AVAILABLE;
876	printk("ret = OSSERR_NO_DEVICE_AVAILABLE\n");
877	goto failure;
878	}
879
880	pHandle = kmalloc(sizeof(mixerhandle), GFP_KERNEL);
881	if(pHandle == NULL) {
882	ret = OSSERR_OUT_OF_MEMORY;
883	goto failure;
884	}
885	memset(pHandle, 0, sizeof(mixerhandle));
886
887	//set operation to non-blocking
888	pHandle->file.f_flags = O_NONBLOCK;
889
890	//setup pointers in file structure (used internally by ALSA)
891	pHandle->file.f_dentry = &pHandle->d_entry;
892	pHandle->file.f_dentry->d_inode = &pHandle->inode;
893
894	pHandle->file.f_mode = FMODE_WRITE;
895	pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_CONTROL);
896
897	ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
898	if(ret) {
899	printk("open ret = %i\n", ret);
900	goto failure;
901	}
902	//retrieve mixer information
903	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
904	SNDRV_CTL_IOCTL_CARD_INFO,
905	(ULONG)&pHandle->info);
906	if(ret) {
907	printk("ioctl ret = %i\n", ret);
908	goto failure;
909	}
910
911	if(pszDeviceName) {
912	if(fLongName == TRUE) {
913	strncpy(pszDeviceName, pHandle->info.longname, cbDeviceName);
914	}
915	else strncpy(pszDeviceName, pHandle->info.name, cbDeviceName);
916	}
917	if(pszMixerName) {
918	strncpy(pszMixerName, pHandle->info.mixername, cbMixerName);
919	}
920
921	// printk("Card: %s with mixer %s\n",pszDeviceName, pszMixerName);
922
923	pHandle->file.f_flags = O_NONBLOCK;
924	ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
925	if(ret) {
926	printk("release ret = %i\n", ret);
927	goto failure;
928	}
929	kfree(pHandle);
930	return OSSERR_SUCCESS;
931
932	failure:
933	if(pHandle) {
934	kfree(pHandle);
935	}
936	DebugInt3();
937	printk("OSS32_QueryNames() ret = %i\n", ret);
938	return OSSERR_OUT_OF_MEMORY;
939	}
940	//******************************************************************************
941	//******************************************************************************
942

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