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source: GPL/trunk/lib32/soundmixer.c@ 260

Last change on this file since 260 was 84, checked in by vladest, 19 years ago
SB code update HDA code update Some other updates
File size: 33.8 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/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 <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_SPEAKER */ { "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	};
76	char *szRecSources[OSS32_MIX_RECSRC_MAX] = {
77	"Mic", "CD", "Line", "Video", "Aux", "Mix", "Mix Mono", "Phone", "Synth"
78	};
79
80	static unsigned char LinToLog[OSS32_MAX_VOLUME+1] = {
81	0, 0, 0, 0, 1, 2, 2, 5, 5, 10,
82	10, 10, 16, 19, 20, 22, 24, 25, 27, 27,
83	28, 28, 29, 30, 30, 35, 35, 35, 39, 39,
84	43, 44, 45, 47, 48, 49, 50, 51, 52, 53,
85	55, 56, 57, 59, 60, 62, 63, 64, 65, 66,
86	67, 68, 69, 70, 71, 72, 73, 74, 74, 75,
87	76, 77, 78, 79, 79, 80, 81, 82, 83, 84,
88	85, 86, 87, 88, 89, 90, 91, 92, 92, 93,
89	93, 94, 94, 95, 95, 96, 96, 97, 97, 98,
90	98, 99, 99, 99, 99, 100, 100, 100, 100, 100,
91	100
92	};
93
94	//******************************************************************************
95	//Convert linear volume to logarithmic
96	//******************************************************************************
97	ULONG ConvertVolume(ULONG ulLinVolume, ULONG ulLogVolMax)
98	{
99	if(ulLinVolume > OSS32_MAX_VOLUME) {
100	ulLinVolume = OSS32_MAX_VOLUME;
101	}
102	ulLinVolume = LinToLog[ulLinVolume];
103
104	return (ulLinVolume * ulLogVolMax) / OSS32_MAX_VOLUME;
105	}
106
107	//******************************************************************************
108	//******************************************************************************
109	OSSRET OSS32_MixOpen(ULONG deviceid, OSSSTREAMID *pStreamId)
110	{
111	mixerhandle *pHandle = NULL;
112	int ret, i, j, sz;
113
114	if(pStreamId == NULL) {
115	DebugInt3();
116	return OSSERR_INVALID_PARAMETER;
117	}
118	*pStreamId = 0;
119
120	if(alsa_fops == NULL) {
121	ret = OSSERR_NO_DEVICE_AVAILABLE;
122	goto failure;
123	}
124
125	sz = sizeof(mixerhandle);
126	pHandle = kmalloc(sz, GFP_KERNEL);
127	if(pHandle == NULL) {
128	ret = OSSERR_OUT_OF_MEMORY;
129	goto failure;
130	}
131	memset(pHandle, 0, sizeof(mixerhandle));
132
133	//set operation to non-blocking
134	pHandle->file.f_flags = O_NONBLOCK;
135
136	//setup pointers in file structure (used internally by ALSA)
137	pHandle->file.f_dentry = &pHandle->d_entry;
138	pHandle->file.f_dentry->d_inode = &pHandle->inode;
139
140	pHandle->file.f_mode = FMODE_WRITE;
141	pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_CONTROL);
142
143	ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
144	if(ret) {
145	goto failure;
146	}
147	//retrieve mixer information
148	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
149	SNDRV_CTL_IOCTL_CARD_INFO,
150	(ULONG)&pHandle->info);
151	if(ret) {
152	goto failure;
153	}
154	//get the number of mixer elements
155	pHandle->list.offset = 0;
156	pHandle->list.space = 0;
157	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
158	SNDRV_CTL_IOCTL_ELEM_LIST,
159	(ULONG)&pHandle->list);
160	if(ret) {
161	goto failure;
162	}
163	//allocate memory for all mixer elements
164	pHandle->pids = (snd_ctl_elem_id_t )kmalloc(sizeof(snd_ctl_elem_id_t)pHandle->list.count, GFP_KERNEL);
165	if(pHandle->pids == NULL) {
166	goto failure;
167	}
168	//and retrieve all mixer elements
169	pHandle->list.offset = 0;
170	pHandle->list.space = pHandle->list.count;
171	pHandle->list.pids = pHandle->pids;
172	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
173	SNDRV_CTL_IOCTL_ELEM_LIST,
174	(ULONG)&pHandle->list);
175	if(ret) {
176	goto failure;
177	}
178
179	#if 0
180	dprintf(("Mixer name: %s", pHandle->info.mixername));
181	dprintf(("List of mixer elements:"));
182	for(i=0;i<pHandle->list.count;i++) {
183	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));
184	}
185	#endif
186
187	//Extract standard mixer controls from array with control names
188	for(j=0;j<OSS_MIXER_NRDEVICES;j++)
189	{
190	int namelen = strlen(ossid[j].name);
191
192	pHandle->controls[j].idxVolume = -1;
193	pHandle->controls[j].idxMute = -1;
194	pHandle->controls[j].idxCustom = -1;
195	pHandle->controls[j].idxCaptureSwitch = -1;
196
197	for(i=0;i<pHandle->list.count;i++)
198	{
199	if (pHandle->pids[i].index == ossid[j].index &&
200	strncmp(pHandle->pids[i].name, ossid[j].name, namelen) == 0)
201	{
202	int controlnamelen = strlen(pHandle->pids[i].name);
203
204	if(namelen == controlnamelen)
205	{//control names are identical; found exact match
206	pHandle->controls[j].idxVolume = i;
207	break;
208	}
209	else
210	{//first part of the control name is correct; now find out what
211	//is it exactly
212	char *nextword = &pHandle->pids[i].name[namelen];
213	while(nextword && nextword == ' ') nextword++;
214
215	if(strncmp(nextword, MIXER_PLAYBACKVOLUME, sizeof(MIXER_PLAYBACKVOLUME)-1) == 0 \|\|
216	strncmp(nextword, MIXER_VOLUME, sizeof(MIXER_VOLUME)-1) == 0)
217	{//volume control
218	pHandle->controls[j].idxVolume = i;
219	}
220	else
221	if(strncmp(nextword, MIXER_PLAYBACKSWITCH, sizeof(MIXER_PLAYBACKSWITCH)-1) == 0 \|\|
222	strncmp(nextword, MIXER_SWITCH, sizeof(MIXER_SWITCH)-1) == 0)
223	{//mute control
224	pHandle->controls[j].idxMute = i;
225	}
226	else
227	if(strncmp(nextword, MIXER_SOURCE, sizeof(MIXER_SOURCE)-1) == 0)
228	{//source control (e.g. recording source)
229	pHandle->controls[j].idxCustom = i;
230	}
231	else
232	if(strncmp(nextword, MIXER_CAPTUREROUTE, sizeof(MIXER_CAPTUREROUTE)-1) == 0 \|\|
233	strncmp(nextword, MIXER_CAPTURESWITCH, sizeof(MIXER_CAPTURESWITCH)-1) == 0)
234	{//source control for recording (per input)
235	pHandle->controls[j].idxCaptureSwitch = i;
236	}
237	else
238	if(i == OSS_MIXER_MIC) {
239	if(strncmp(nextword, MIXER_BOOST, sizeof(MIXER_BOOST)-1) == 0)
240	{//mic boost switch
241	pHandle->controls[j].idxCustom = i;
242	}
243	}
244	}
245	}
246	}
247	}
248
249	pHandle->reccaps = 0;
250	for(j=0;j<OSS32_MIX_RECSRC_MAX;j++) {
251	pHandle->idxRecCaps[j] = -1;
252	}
253
254	//request information about available capture sources
255	if(pHandle->controls[OSS_MIXER_IGAIN].idxCustom != -1)
256	{
257	snd_ctl_elem_info_t *pElemInfo = NULL;
258	int idx, j;
259
260	idx = pHandle->controls[OSS_MIXER_IGAIN].idxCustom;
261
262	//set operation to non-blocking
263	pHandle->file.f_flags = O_NONBLOCK;
264
265	pHandle->rectype = RECTYPE_SELECTOR;
266
267	//too big to put on the stack
268	pElemInfo = (snd_ctl_elem_info_t *)kmalloc(sizeof(snd_ctl_elem_info_t), GFP_KERNEL);
269	if(pElemInfo == NULL) {
270	DebugInt3();
271	goto failure;
272	}
273
274	pElemInfo->value.enumerated.items = 1;
275	for(i=0;i<pElemInfo->value.enumerated.items;i++)
276	{
277	pElemInfo->value.enumerated.item = i;
278	pElemInfo->id.numid = pHandle->pids[idx].numid;
279	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
280	if(ret) {
281	DebugInt3();
282	break;
283	}
284	if(pElemInfo->type != SNDRV_CTL_ELEM_TYPE_ENUMERATED) {
285	DebugInt3();
286	break;
287	}
288	for(j=0;j<OSS32_MIX_RECSRC_MAX;j++) {
289	if(!strcmp(pElemInfo->value.enumerated.name, szRecSources[j])) {
290	pHandle->reccaps \|= OSS32_MIX_FLAG(j);
291	pHandle->idxRecCaps[j] = i; //save alsa index
292	break;
293	}
294	}
295	}
296	kfree(pElemInfo);
297	}
298	else
299	{//This card has no record source selection, but probably route switches for
300	//each input source (SB mixers (also ALS4000), CMedia)
301	pHandle->rectype = RECTYPE_SWITCH;
302	for(j=0;j<OSS32_MIX_RECSRC_MAX;j++) {
303	pHandle->idxRecCaps[j] = -1;
304	}
305	for(j=0;j<OSS_MIXER_NRDEVICES;j++)
306	{
307	if(pHandle->controls[j].idxCaptureSwitch != -1) {
308	pHandle->reccaps \|= OSS32_MIX_FLAG(ossid[j].recsrc);
309	pHandle->idxRecCaps[ossid[j].recsrc] = pHandle->controls[j].idxCaptureSwitch; //save alsa index
310	}
311	}
312	}
313
314	pHandle->magic = MAGIC_MIXER_ALSA32;
315	*pStreamId = (ULONG)pHandle;
316	return OSSERR_SUCCESS;
317
318	failure:
319	if(pHandle) {
320	if(pHandle->pids) kfree(pHandle->pids);
321	kfree(pHandle);
322	}
323	DebugInt3();
324	return OSSERR_OUT_OF_MEMORY;
325	}
326	//******************************************************************************
327	//******************************************************************************
328	OSSRET OSS32_MixClose(OSSSTREAMID streamid)
329	{
330	mixerhandle pHandle = (mixerhandle )streamid;
331	int ret;
332
333	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
334	DebugInt3();
335	return OSSERR_INVALID_STREAMID;
336	}
337	//set operation to non-blocking
338	pHandle->file.f_flags = O_NONBLOCK;
339	ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
340	kfree(pHandle->pids); //free mixer element array
341	kfree(pHandle); //free handle data
342
343	if(ret) {
344	DebugInt3();
345	return UNIXToOSSError(ret);
346	}
347	return OSSERR_SUCCESS;
348	}
349	//******************************************************************************
350	//******************************************************************************
351	OSSRET OSS32_MixGetVolume(OSSSTREAMID streamid, ULONG line, ULONG *pVolume)
352	{
353	mixerhandle pHandle = (mixerhandle )streamid;
354	int ret;
355
356	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
357	DebugInt3();
358	return OSSERR_INVALID_STREAMID;
359	}
360	//set operation to non-blocking
361	pHandle->file.f_flags = O_NONBLOCK;
362
363	return OSSERR_NOT_SUPPORTED;
364	}
365	//******************************************************************************
366	//******************************************************************************
367	OSSRET OSS32_MixSetVolume(OSSSTREAMID streamid, ULONG line, ULONG volume)
368	{
369	mixerhandle pHandle = (mixerhandle )streamid;
370	snd_ctl_elem_value_t *pElem = NULL;
371	snd_ctl_elem_info_t *pElemInfo;
372	int ret, idx, lVol, rVol = 0, idxMute, cnt;
373
374	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
375	printk("Invalid handle in OSS32_MixSetVolume\n");
376	DebugInt3();
377	return OSSERR_INVALID_STREAMID;
378	}
379	//set operation to non-blocking
380	pHandle->file.f_flags = O_NONBLOCK;
381
382	//too big to put on the stack
383	pElem = (snd_ctl_elem_value_t *)kmalloc(sizeof(snd_ctl_elem_value_t) + sizeof(snd_ctl_elem_info_t), GFP_KERNEL);
384	if(pElem == NULL) {
385	printk("Out of memory in OSS32_MixSetVolume\n");
386	DebugInt3();
387	return OSSERR_OUT_OF_MEMORY;
388	}
389	pElemInfo = (snd_ctl_elem_info_t *)(pElem+1);
390
391	switch(line) {
392	case OSS32_MIX_VOLUME_MASTER_FRONT:
393	idx = pHandle->controls[OSS_MIXER_VOLUME].idxVolume;
394	idxMute = pHandle->controls[OSS_MIXER_VOLUME].idxMute;
395	if (idx == -1)
396	{
397	/* HDA codecs workaround */
398	idx = pHandle->controls[OSS_MIXER_FRONT].idxVolume;
399	idxMute = pHandle->controls[OSS_MIXER_FRONT].idxMute;
400	}
401	break;
402	case OSS32_MIX_VOLUME_MASTER_REAR: //TODO:
403	idx = pHandle->controls[OSS_MIXER_VOLUME].idxVolume;
404	idxMute = pHandle->controls[OSS_MIXER_VOLUME].idxMute;
405	break;
406	case OSS32_MIX_VOLUME_PCM:
407	idx = pHandle->controls[OSS_MIXER_PCM].idxVolume;
408	idxMute = pHandle->controls[OSS_MIXER_PCM].idxMute;
409	if (idx == -1)
410	{
411	/* HDA codecs workaround */
412	idx = pHandle->controls[OSS_MIXER_FRONT].idxVolume;
413	idxMute = pHandle->controls[OSS_MIXER_FRONT].idxMute;
414	}
415	break;
416	case OSS32_MIX_VOLUME_MIDI:
417	idx = pHandle->controls[OSS_MIXER_SYNTH].idxVolume;
418	idxMute = pHandle->controls[OSS_MIXER_SYNTH].idxMute;
419	break;
420	case OSS32_MIX_VOLUME_LINEIN:
421	idx = pHandle->controls[OSS_MIXER_LINE].idxVolume;
422	idxMute = pHandle->controls[OSS_MIXER_LINE].idxMute;
423	break;
424	case OSS32_MIX_VOLUME_MIC:
425	idx = pHandle->controls[OSS_MIXER_MIC].idxVolume;
426	idxMute = pHandle->controls[OSS_MIXER_MIC].idxMute;
427	break;
428	case OSS32_MIX_VOLUME_CD:
429	idx = pHandle->controls[OSS_MIXER_CD].idxVolume;
430	idxMute = pHandle->controls[OSS_MIXER_CD].idxMute;
431	break;
432	case OSS32_MIX_VOLUME_SPDIF:
433	idx = pHandle->controls[OSS_MIXER_DIGITAL1].idxVolume;
434	idxMute = pHandle->controls[OSS_MIXER_DIGITAL1].idxMute;
435	break;
436	case OSS32_MIX_VOLUME_VIDEO:
437	idx = pHandle->controls[OSS_MIXER_VIDEO].idxVolume;
438	idxMute = pHandle->controls[OSS_MIXER_VIDEO].idxMute;
439	break;
440	case OSS32_MIX_VOLUME_SPEAKER:
441	idx = pHandle->controls[OSS_MIXER_SPEAKER].idxVolume;
442	idxMute = pHandle->controls[OSS_MIXER_SPEAKER].idxMute;
443	break;
444	case OSS32_MIX_VOLUME_PHONE:
445	idx = pHandle->controls[OSS_MIXER_PHONEOUT].idxVolume;
446	idxMute = pHandle->controls[OSS_MIXER_PHONEOUT].idxMute;
447	break;
448	case OSS32_MIX_VOLUME_HEADPHONE: //TODO:
449	idx = pHandle->controls[OSS_MIXER_PHONEOUT].idxVolume;
450	idxMute = pHandle->controls[OSS_MIXER_PHONEOUT].idxMute;
451	break;
452	case OSS32_MIX_VOLUME_AUX:
453	idx = pHandle->controls[OSS_MIXER_LINE1].idxVolume;
454	idxMute = pHandle->controls[OSS_MIXER_LINE1].idxMute;
455	break;
456	case OSS32_MIX_VOLUME_CAPTURE:
457	idx = pHandle->controls[OSS_MIXER_IGAIN].idxVolume;
458	idxMute = pHandle->controls[OSS_MIXER_IGAIN].idxMute;
459	break;
460
461	default:
462	DebugInt3();
463	ret = OSSERR_INVALID_PARAMETER;
464	goto fail;
465	}
466	if(idx == -1) {
467	dprintf(("Unknown control %d", line));
468	ret = OSSERR_INVALID_PARAMETER;
469	goto fail;
470	}
471
472	if(idxMute != -1 && volume != 0) {
473	//disable mute
474	pElem->id.numid = pHandle->pids[idxMute].numid;
475	pElem->indirect = 0;
476
477	pElem->value.integer.value[0] = TRUE; //switch, not mute control (inversed)
478	pElem->value.integer.value[1] = TRUE;
479	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
480	}
481	//request information about mixer control
482	pElemInfo->id.numid = pHandle->pids[idx].numid;
483	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
484	if(ret) {
485	ret = UNIXToOSSError(ret);
486	DebugInt3();
487	goto fail;
488	}
489	if(pElemInfo->type != SNDRV_CTL_ELEM_TYPE_INTEGER) {
490	ret = OSSERR_INVALID_PARAMETER;
491	DebugInt3();
492	goto fail;
493	}
494	pElem->id.numid = pHandle->pids[idx].numid;
495	pElem->indirect = 0;
496
497	lVol = ConvertVolume(GET_VOLUME_L(volume), pElemInfo->value.integer.max);
498	pElem->value.integer.value[0] = lVol;
499
500	if(pElemInfo->count > 1) { //stereo
501	rVol = ConvertVolume(GET_VOLUME_R(volume), pElemInfo->value.integer.max);
502	pElem->value.integer.value[1] = rVol;
503	}
504
505	printk("OSS32_MixSetVolume of %s streamid %X to (%d,%d)(%d,%d) caps %d\n",
506	pHandle->pids[idx].name,
507	(ULONG)pHandle, GET_VOLUME_L(volume),
508	GET_VOLUME_R(volume), lVol, rVol, pElemInfo->value.integer.max);
509
510	// looking for more, then one opened streams to prevent of muting active stream
511	cnt = 0;
512	for (idx=0; idx < 8*256; idx++)
513	if (opened_handles[idx].handle != 0)
514	cnt++;
515
516	// if (((cnt == 1 && (lVol==0 && rVol==0)) \|\| (lVol>0 && rVol>0)) \|\|
517	if (cnt == 1 \|\| line != OSS32_MIX_VOLUME_PCM)
518	{
519	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
520
521	if(idxMute != -1 && volume == 0) {
522	//enable mute
523	pElem->id.numid = pHandle->pids[idxMute].numid;
524	pElem->indirect = 0;
525
526	pElem->value.integer.value[0] = FALSE; //switch, not mute control (inversed)
527	pElem->value.integer.value[1] = FALSE;
528	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
529	}
530	}
531
532	kfree(pElem);
533	pElem = NULL;
534	if(ret) {
535	printk("ret = %i\n", ret);
536	DebugInt3();
537	return UNIXToOSSError(ret);
538	}
539	return OSSERR_SUCCESS;
540
541	fail:
542	printk("OSS32_MixSetVolume failed: %i\n", ret);
543	if(pElem) kfree(pElem);
544	return ret;
545	}
546	//******************************************************************************
547	//******************************************************************************
548	OSSRET OSS32_MixSetProperty(OSSSTREAMID streamid, ULONG ulLine, ULONG ulValue)
549	{
550	mixerhandle pHandle = (mixerhandle )streamid;
551	snd_ctl_elem_value_t *pElem = NULL;
552	snd_ctl_elem_info_t *pElemInfo;
553	int ret, idx = -1, lVol, rVol = 0, j, i;
554
555	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
556	DebugInt3();
557	return OSSERR_INVALID_STREAMID;
558	}
559	//set operation to non-blocking
560	pHandle->file.f_flags = O_NONBLOCK;
561
562	//too big to put on the stack
563	pElem = (snd_ctl_elem_value_t *)kmalloc(sizeof(snd_ctl_elem_value_t) + sizeof(snd_ctl_elem_info_t), GFP_KERNEL);
564	if(pElem == NULL) {
565	DebugInt3();
566	return OSSERR_OUT_OF_MEMORY;
567	}
568	pElemInfo = (snd_ctl_elem_info_t *)(pElem+1);
569
570	switch(ulLine) {
571	case OSS32_MIX_INPUTSRC:
572	idx = pHandle->controls[OSS_MIXER_IGAIN].idxCustom;
573	//is this capture source supported by the hardware??
574	if(!(pHandle->reccaps & OSS32_MIX_FLAG(ulValue))) {
575	DebugInt3();
576	ret = OSSERR_INVALID_PARAMETER;
577	goto fail;
578	}
579	if(pHandle->rectype == RECTYPE_SELECTOR) {//input source selector
580	//set left and right capture source
581	pElem->value.enumerated.item[0] = pHandle->idxRecCaps[ulValue];
582	pElem->value.enumerated.item[1] = pHandle->idxRecCaps[ulValue];
583	}
584	else {//capture switch for each input source
585	//first turn off all capture switches...
586	for(j=0;j<OSS32_MIX_RECSRC_MAX;j++)
587	{
588	if(pHandle->idxRecCaps[j] != -1) {
589	idx = pHandle->idxRecCaps[j];
590
591	//request information about mixer control
592	pElemInfo->id.numid = pHandle->pids[idx].numid;
593	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
594	if(ret) {
595	ret = UNIXToOSSError(ret);
596	DebugInt3();
597	goto fail;
598	}
599	if(pElemInfo->type != SNDRV_CTL_ELEM_TYPE_BOOLEAN) {
600	ret = OSSERR_INVALID_PARAMETER;
601	DebugInt3();
602	goto fail;
603	}
604
605	pElem->id.numid = pHandle->pids[idx].numid;
606	pElem->indirect = 0;
607	for(i=0;i<pElemInfo->count;i++) {
608	pElem->value.integer.value[i] = 0;
609	}
610
611	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
612	if(ret) {
613	ret = UNIXToOSSError(ret);
614	DebugInt3();
615	goto fail;
616	}
617	}
618	}
619	//request information about mixer control
620	pElemInfo->id.numid = pHandle->pids[idx].numid;
621	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
622	if(ret) {
623	ret = UNIXToOSSError(ret);
624	DebugInt3();
625	goto fail;
626	}
627
628	//and enable the capture switch for the selected input source
629	idx = pHandle->idxRecCaps[ulValue];
630	for(i=0;i<pElemInfo->count;i++) {
631	pElem->value.integer.value[i] = 1;
632	}
633	}
634
635	break;
636
637	case OSS32_MIX_SWITCH_MICBOOST:
638	idx = pHandle->controls[OSS_MIXER_MIC].idxCustom;
639	if(idx == -1) {
640	DebugInt3();
641	ret = OSSERR_INVALID_PARAMETER;
642	goto fail;
643	}
644	//set mic switch value (on/off)
645	pElem->value.integer.value[0] = ulValue;
646	break;
647
648	case OSS32_MIX_LEVEL_BASS:
649	idx = pHandle->controls[OSS_MIXER_BASS].idxVolume;
650	goto levelcontinue;
651	case OSS32_MIX_LEVEL_TREBLE:
652	idx = pHandle->controls[OSS_MIXER_TREBLE].idxVolume;
653	goto levelcontinue;
654	case OSS32_MIX_LEVEL_3DCENTER:
655	idx = pHandle->controls[OSS_MIXER_3DCENTER].idxVolume;
656	goto levelcontinue;
657	case OSS32_MIX_LEVEL_3DDEPTH:
658	idx = pHandle->controls[OSS_MIXER_3DDEPTH].idxVolume;
659	levelcontinue:
660
661	if(idx == -1) {//supported?
662	DebugInt3();
663	ret = OSSERR_INVALID_PARAMETER;
664	goto fail;
665	}
666	//request information about mixer control
667	pElemInfo->id.numid = pHandle->pids[idx].numid;
668	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_INFO, (ULONG)pElemInfo);
669	if(ret) {
670	ret = UNIXToOSSError(ret);
671	DebugInt3();
672	goto fail;
673	}
674	if(pElemInfo->type != SNDRV_CTL_ELEM_TYPE_INTEGER) {
675	ret = OSSERR_INVALID_PARAMETER;
676	DebugInt3();
677	goto fail;
678	}
679	lVol = ConvertVolume(GET_VOLUME_L(ulValue), pElemInfo->value.integer.max);
680	pElem->value.integer.value[0] = lVol;
681
682	if(pElemInfo->count > 1) { //stereo
683	rVol = ConvertVolume(GET_VOLUME_R(ulValue), pElemInfo->value.integer.max);
684	pElem->value.integer.value[1] = rVol;
685	}
686	break;
687
688	default:
689	DebugInt3();
690	ret = OSSERR_INVALID_PARAMETER;
691	goto fail;
692	}
693	pElem->id.numid = pHandle->pids[idx].numid;
694	pElem->indirect = 0;
695
696	dprintf(("OSS32_MixSetProperty of %s to %x", pHandle->pids[idx].name, ulValue));
697	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file, SNDRV_CTL_IOCTL_ELEM_WRITE, (ULONG)pElem);
698
699	kfree(pElem);
700	pElem = NULL;
701	if(ret) {
702	DebugInt3();
703	return UNIXToOSSError(ret);
704	}
705	return OSSERR_SUCCESS;
706
707	fail:
708	if(pElem) kfree(pElem);
709	return ret;
710	}
711	//******************************************************************************
712	//******************************************************************************
713	OSSRET OSS32_MixGetProperty(OSSSTREAMID streamid, ULONG line, ULONG *pValue)
714	{
715	mixerhandle pHandle = (mixerhandle )streamid;
716	int ret;
717
718	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
719	DebugInt3();
720	return OSSERR_INVALID_STREAMID;
721	}
722	//set operation to non-blocking
723	pHandle->file.f_flags = O_NONBLOCK;
724
725	return OSSERR_NOT_SUPPORTED;
726	}
727	//******************************************************************************
728	//******************************************************************************
729	ULONG OSSToALSAVolume(ULONG OSSVolIdx)
730	{
731	switch(OSSVolIdx) {
732	case OSS_MIXER_VOLUME:
733	return OSS32_MIX_VOLUME_MASTER_FRONT;
734	#if 0
735	case OSS_MIXER_VOLUME: //TODO:
736	return OSS32_MIX_VOLUME_MASTER_REAR;
737	#endif
738	case OSS_MIXER_PCM:
739	return OSS32_MIX_VOLUME_PCM;
740	case OSS_MIXER_SYNTH:
741	return OSS32_MIX_VOLUME_MIDI;
742	case OSS_MIXER_LINE:
743	return OSS32_MIX_VOLUME_LINEIN;
744	case OSS_MIXER_MIC:
745	return OSS32_MIX_VOLUME_MIC;
746	case OSS_MIXER_CD:
747	return OSS32_MIX_VOLUME_CD;
748	case OSS_MIXER_DIGITAL1:
749	return OSS32_MIX_VOLUME_SPDIF;
750	case OSS_MIXER_VIDEO:
751	return OSS32_MIX_VOLUME_VIDEO;
752	case OSS_MIXER_SPEAKER:
753	return OSS32_MIX_VOLUME_SPEAKER;
754	case OSS_MIXER_PHONEOUT:
755	return OSS32_MIX_VOLUME_PHONE;
756	case OSS_MIXER_IGAIN:
757	return OSS32_MIX_VOLUME_CAPTURE;
758	case OSS_MIXER_TREBLE:
759	return OSS32_MIX_LEVEL_TREBLE;
760	case OSS_MIXER_BASS:
761	return OSS32_MIX_LEVEL_BASS;
762	#if 0
763	case OSS_MIXER_PHONEOUT: //TODO:
764	return OSS32_MIX_VOLUME_HEADPHONE;
765	#endif
766	case OSS_MIXER_LINE1:
767	return OSS32_MIX_VOLUME_AUX;
768	}
769	return -1;
770	}
771	//******************************************************************************
772	//******************************************************************************
773	OSSRET OSS32_MixQueryCaps(OSSSTREAMID streamid, POSS32_MIXCAPS pCaps)
774	{
775	mixerhandle pHandle = (mixerhandle )streamid;
776	int i;
777
778	if(pHandle == NULL \|\| pHandle->magic != MAGIC_MIXER_ALSA32) {
779	DebugInt3();
780	return OSSERR_INVALID_STREAMID;
781	}
782
783	strncpy(pCaps->name, pHandle->info.mixername, sizeof(pCaps->name));
784	pCaps->fuCtrlCaps = 0;
785	pCaps->fuRecCaps = 0;
786
787	for(i=0;i<OSS_MIXER_NRDEVICES;i++)
788	{
789	if(pHandle->controls[i].idxVolume != -1) {
790	ULONG volidx = OSSToALSAVolume(i);
791	if(volidx != -1)
792	pCaps->fuCtrlCaps \|= OSS32_MIX_FLAG(volidx);
793	}
794	}
795
796	//if it has a capture source control or the card has capture route switches,
797	//then we support intput source selection
798	if(pHandle->controls[OSS_MIXER_IGAIN].idxCustom != -1 \|\|
799	pHandle->rectype == RECTYPE_SWITCH)
800	{
801	pCaps->fuCtrlCaps \|= OSS32_MIX_FLAG(OSS32_MIX_INPUTSRC);
802	pCaps->fuRecCaps = pHandle->reccaps;
803	}
804	return OSSERR_SUCCESS;
805	}
806	//******************************************************************************
807	//******************************************************************************
808	OSSRET OSS32_MixQueryName(ULONG deviceid, char *pszMixerName, ULONG cbMixerName)
809	{
810	mixerhandle *pHandle = NULL;
811	int ret, i, j;
812
813	if(alsa_fops == NULL)
814	return OSSERR_NO_DEVICE_AVAILABLE;
815
816	pHandle = kmalloc(sizeof(mixerhandle), GFP_KERNEL);
817	if(pHandle == NULL) {
818	ret = OSSERR_OUT_OF_MEMORY;
819	goto failure;
820	}
821	memset(pHandle, 0, sizeof(mixerhandle));
822
823	//set operation to non-blocking
824	pHandle->file.f_flags = O_NONBLOCK;
825
826	//setup pointers in file structure (used internally by ALSA)
827	pHandle->file.f_dentry = &pHandle->d_entry;
828	pHandle->file.f_dentry->d_inode = &pHandle->inode;
829
830	pHandle->file.f_mode = FMODE_WRITE;
831	pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_CONTROL);
832
833	ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
834	if(ret) {
835	goto failure;
836	}
837	//retrieve mixer information
838	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
839	SNDRV_CTL_IOCTL_CARD_INFO,
840	(ULONG)&pHandle->info);
841	if(ret) {
842	goto failure;
843	}
844
845	strncpy(pszMixerName, pHandle->info.mixername, cbMixerName);
846
847	pHandle->file.f_flags = O_NONBLOCK;
848	ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
849	if(ret) {
850	goto failure;
851	}
852	kfree(pHandle);
853	return OSSERR_SUCCESS;
854
855	failure:
856	if(pHandle) {
857	kfree(pHandle);
858	}
859	DebugInt3();
860	return OSSERR_OUT_OF_MEMORY;
861	}
862	//******************************************************************************
863	//******************************************************************************
864	OSSRET OSS32_QueryNames(ULONG deviceid, char *pszDeviceName, ULONG cbDeviceName,
865	char *pszMixerName, ULONG cbMixerName, BOOL fLongName)
866	{
867	mixerhandle *pHandle = NULL;
868	int ret, i, j;
869
870	if(alsa_fops == NULL) {
871	ret = OSSERR_NO_DEVICE_AVAILABLE;
872	goto failure;
873	}
874
875	pHandle = kmalloc(sizeof(mixerhandle), GFP_KERNEL);
876	if(pHandle == NULL) {
877	ret = OSSERR_OUT_OF_MEMORY;
878	goto failure;
879	}
880	memset(pHandle, 0, sizeof(mixerhandle));
881
882	//set operation to non-blocking
883	pHandle->file.f_flags = O_NONBLOCK;
884
885	//setup pointers in file structure (used internally by ALSA)
886	pHandle->file.f_dentry = &pHandle->d_entry;
887	pHandle->file.f_dentry->d_inode = &pHandle->inode;
888
889	pHandle->file.f_mode = FMODE_WRITE;
890	pHandle->inode.i_rdev = SNDRV_MINOR(deviceid, SNDRV_MINOR_CONTROL);
891
892	ret = alsa_fops->open(&pHandle->inode, &pHandle->file);
893	if(ret) {
894	printk("open ret = %i\n", ret);
895	goto failure;
896	}
897	//retrieve mixer information
898	ret = pHandle->file.f_op->ioctl(&pHandle->inode, &pHandle->file,
899	SNDRV_CTL_IOCTL_CARD_INFO,
900	(ULONG)&pHandle->info);
901	if(ret) {
902	printk("ioctl ret = %i\n", ret);
903	goto failure;
904	}
905
906	if(pszDeviceName) {
907	if(fLongName == TRUE) {
908	strncpy(pszDeviceName, pHandle->info.longname, cbDeviceName);
909	}
910	else strncpy(pszDeviceName, pHandle->info.name, cbDeviceName);
911	}
912	if(pszMixerName) {
913	strncpy(pszMixerName, pHandle->info.mixername, cbMixerName);
914	}
915
916	// printk("Card: %s with mixer %s\n",pszDeviceName, pszMixerName);
917
918	pHandle->file.f_flags = O_NONBLOCK;
919	ret = pHandle->file.f_op->release(&pHandle->inode, &pHandle->file);
920	if(ret) {
921	printk("release ret = %i\n", ret);
922	goto failure;
923	}
924	kfree(pHandle);
925	return OSSERR_SUCCESS;
926
927	failure:
928	if(pHandle) {
929	kfree(pHandle);
930	}
931	DebugInt3();
932	printk("OSS32_QueryNames() ret = %i\n", ret);
933	return OSSERR_OUT_OF_MEMORY;
934	}
935	//******************************************************************************
936	//******************************************************************************
937

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