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  1/*
  2 * sound/oss/sb_mixer.c
  3 *
  4 * The low level mixer driver for the Sound Blaster compatible cards.
  5 */
  6/*
  7 * Copyright (C) by Hannu Savolainen 1993-1997
  8 *
  9 * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
 10 * Version 2 (June 1991). See the "COPYING" file distributed with this software
 11 * for more info.
 12 *
 13 *
 14 * Thomas Sailer				: ioctl code reworked (vmalloc/vfree removed)
 15 * Rolf Fokkens (Dec 20 1998)	: Moved ESS stuff into sb_ess.[ch]
 16 * Stanislav Voronyi <stas@esc.kharkov.com>	: Support for AWE 3DSE device (Jun 7 1999)
 17 */
 18
 19#include <linux/slab.h>
 20
 21#include "sound_config.h"
 22
 23#define __SB_MIXER_C__
 24
 25#include "sb.h"
 26#include "sb_mixer.h"
 27
 28#include "sb_ess.h"
 29
 30#define SBPRO_RECORDING_DEVICES	(SOUND_MASK_LINE | SOUND_MASK_MIC | SOUND_MASK_CD)
 31
 32/* Same as SB Pro, unless I find otherwise */
 33#define SGNXPRO_RECORDING_DEVICES SBPRO_RECORDING_DEVICES
 34
 35#define SBPRO_MIXER_DEVICES		(SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_LINE | SOUND_MASK_MIC | \
 36					 SOUND_MASK_CD | SOUND_MASK_VOLUME)
 37
 38/* SG NX Pro has treble and bass settings on the mixer. The 'speaker'
 39 * channel is the COVOX/DisneySoundSource emulation volume control
 40 * on the mixer. It does NOT control speaker volume. Should have own
 41 * mask eventually?
 42 */
 43#define SGNXPRO_MIXER_DEVICES	(SBPRO_MIXER_DEVICES|SOUND_MASK_BASS| \
 44				 SOUND_MASK_TREBLE|SOUND_MASK_SPEAKER )
 45
 46#define SB16_RECORDING_DEVICES		(SOUND_MASK_SYNTH | SOUND_MASK_LINE | SOUND_MASK_MIC | \
 47					 SOUND_MASK_CD)
 48
 49#define SB16_OUTFILTER_DEVICES		(SOUND_MASK_LINE | SOUND_MASK_MIC | \
 50					 SOUND_MASK_CD)
 51
 52#define SB16_MIXER_DEVICES		(SOUND_MASK_SYNTH | SOUND_MASK_PCM | SOUND_MASK_SPEAKER | SOUND_MASK_LINE | SOUND_MASK_MIC | \
 53					 SOUND_MASK_CD | \
 54					 SOUND_MASK_IGAIN | SOUND_MASK_OGAIN | \
 55					 SOUND_MASK_VOLUME | SOUND_MASK_BASS | SOUND_MASK_TREBLE | \
 56					SOUND_MASK_IMIX)
 57
 58/* These are the only devices that are working at the moment.  Others could
 59 * be added once they are identified and a method is found to control them.
 60 */
 61#define ALS007_MIXER_DEVICES	(SOUND_MASK_SYNTH | SOUND_MASK_LINE | \
 62				 SOUND_MASK_PCM | SOUND_MASK_MIC | \
 63				 SOUND_MASK_CD | \
 64				 SOUND_MASK_VOLUME)
 65
 66static mixer_tab sbpro_mix = {
 67MIX_ENT(SOUND_MIXER_VOLUME,	0x22, 7, 4, 0x22, 3, 4),
 68MIX_ENT(SOUND_MIXER_BASS,	0x00, 0, 0, 0x00, 0, 0),
 69MIX_ENT(SOUND_MIXER_TREBLE,	0x00, 0, 0, 0x00, 0, 0),
 70MIX_ENT(SOUND_MIXER_SYNTH,	0x26, 7, 4, 0x26, 3, 4),
 71MIX_ENT(SOUND_MIXER_PCM,	0x04, 7, 4, 0x04, 3, 4),
 72MIX_ENT(SOUND_MIXER_SPEAKER,	0x00, 0, 0, 0x00, 0, 0),
 73MIX_ENT(SOUND_MIXER_LINE,	0x2e, 7, 4, 0x2e, 3, 4),
 74MIX_ENT(SOUND_MIXER_MIC,	0x0a, 2, 3, 0x00, 0, 0),
 75MIX_ENT(SOUND_MIXER_CD,		0x28, 7, 4, 0x28, 3, 4),
 76MIX_ENT(SOUND_MIXER_IMIX,	0x00, 0, 0, 0x00, 0, 0),
 77MIX_ENT(SOUND_MIXER_ALTPCM,	0x00, 0, 0, 0x00, 0, 0),
 78MIX_ENT(SOUND_MIXER_RECLEV,	0x00, 0, 0, 0x00, 0, 0)
 79};
 80
 81static mixer_tab sb16_mix = {
 82MIX_ENT(SOUND_MIXER_VOLUME,	0x30, 7, 5, 0x31, 7, 5),
 83MIX_ENT(SOUND_MIXER_BASS,	0x46, 7, 4, 0x47, 7, 4),
 84MIX_ENT(SOUND_MIXER_TREBLE,	0x44, 7, 4, 0x45, 7, 4),
 85MIX_ENT(SOUND_MIXER_SYNTH,	0x34, 7, 5, 0x35, 7, 5),
 86MIX_ENT(SOUND_MIXER_PCM,	0x32, 7, 5, 0x33, 7, 5),
 87MIX_ENT(SOUND_MIXER_SPEAKER,	0x3b, 7, 2, 0x00, 0, 0),
 88MIX_ENT(SOUND_MIXER_LINE,	0x38, 7, 5, 0x39, 7, 5),
 89MIX_ENT(SOUND_MIXER_MIC,	0x3a, 7, 5, 0x00, 0, 0),
 90MIX_ENT(SOUND_MIXER_CD,		0x36, 7, 5, 0x37, 7, 5),
 91MIX_ENT(SOUND_MIXER_IMIX,	0x3c, 0, 1, 0x00, 0, 0),
 92MIX_ENT(SOUND_MIXER_ALTPCM,	0x00, 0, 0, 0x00, 0, 0),
 93MIX_ENT(SOUND_MIXER_RECLEV,	0x3f, 7, 2, 0x40, 7, 2), /* Obsolete. Use IGAIN */
 94MIX_ENT(SOUND_MIXER_IGAIN,	0x3f, 7, 2, 0x40, 7, 2),
 95MIX_ENT(SOUND_MIXER_OGAIN,	0x41, 7, 2, 0x42, 7, 2)
 96};
 97
 98static mixer_tab als007_mix = 
 99{
100MIX_ENT(SOUND_MIXER_VOLUME,	0x62, 7, 4, 0x62, 3, 4),
101MIX_ENT(SOUND_MIXER_BASS,	0x00, 0, 0, 0x00, 0, 0),
102MIX_ENT(SOUND_MIXER_TREBLE,	0x00, 0, 0, 0x00, 0, 0),
103MIX_ENT(SOUND_MIXER_SYNTH,	0x66, 7, 4, 0x66, 3, 4),
104MIX_ENT(SOUND_MIXER_PCM,	0x64, 7, 4, 0x64, 3, 4),
105MIX_ENT(SOUND_MIXER_SPEAKER,	0x00, 0, 0, 0x00, 0, 0),
106MIX_ENT(SOUND_MIXER_LINE,	0x6e, 7, 4, 0x6e, 3, 4),
107MIX_ENT(SOUND_MIXER_MIC,	0x6a, 2, 3, 0x00, 0, 0),
108MIX_ENT(SOUND_MIXER_CD,		0x68, 7, 4, 0x68, 3, 4),
109MIX_ENT(SOUND_MIXER_IMIX,	0x00, 0, 0, 0x00, 0, 0),
110MIX_ENT(SOUND_MIXER_ALTPCM,	0x00, 0, 0, 0x00, 0, 0),
111MIX_ENT(SOUND_MIXER_RECLEV,	0x00, 0, 0, 0x00, 0, 0), /* Obsolete. Use IGAIN */
112MIX_ENT(SOUND_MIXER_IGAIN,	0x00, 0, 0, 0x00, 0, 0),
113MIX_ENT(SOUND_MIXER_OGAIN,	0x00, 0, 0, 0x00, 0, 0)
114};
115
116
117/* SM_GAMES          Master volume is lower and PCM & FM volumes
118			     higher than with SB Pro. This improves the
119			     sound quality */
120
121static int smg_default_levels[32] =
122{
123  0x2020,			/* Master Volume */
124  0x4b4b,			/* Bass */
125  0x4b4b,			/* Treble */
126  0x6464,			/* FM */
127  0x6464,			/* PCM */
128  0x4b4b,			/* PC Speaker */
129  0x4b4b,			/* Ext Line */
130  0x0000,			/* Mic */
131  0x4b4b,			/* CD */
132  0x4b4b,			/* Recording monitor */
133  0x4b4b,			/* SB PCM */
134  0x4b4b,			/* Recording level */
135  0x4b4b,			/* Input gain */
136  0x4b4b,			/* Output gain */
137  0x4040,			/* Line1 */
138  0x4040,			/* Line2 */
139  0x1515			/* Line3 */
140};
141
142static int sb_default_levels[32] =
143{
144  0x5a5a,			/* Master Volume */
145  0x4b4b,			/* Bass */
146  0x4b4b,			/* Treble */
147  0x4b4b,			/* FM */
148  0x4b4b,			/* PCM */
149  0x4b4b,			/* PC Speaker */
150  0x4b4b,			/* Ext Line */
151  0x1010,			/* Mic */
152  0x4b4b,			/* CD */
153  0x0000,			/* Recording monitor */
154  0x4b4b,			/* SB PCM */
155  0x4b4b,			/* Recording level */
156  0x4b4b,			/* Input gain */
157  0x4b4b,			/* Output gain */
158  0x4040,			/* Line1 */
159  0x4040,			/* Line2 */
160  0x1515			/* Line3 */
161};
162
163static unsigned char sb16_recmasks_L[SOUND_MIXER_NRDEVICES] =
164{
165	0x00,	/* SOUND_MIXER_VOLUME	*/
166	0x00,	/* SOUND_MIXER_BASS	*/
167	0x00,	/* SOUND_MIXER_TREBLE	*/
168	0x40,	/* SOUND_MIXER_SYNTH	*/
169	0x00,	/* SOUND_MIXER_PCM	*/
170	0x00,	/* SOUND_MIXER_SPEAKER	*/
171	0x10,	/* SOUND_MIXER_LINE	*/
172	0x01,	/* SOUND_MIXER_MIC	*/
173	0x04,	/* SOUND_MIXER_CD	*/
174	0x00,	/* SOUND_MIXER_IMIX	*/
175	0x00,	/* SOUND_MIXER_ALTPCM	*/
176	0x00,	/* SOUND_MIXER_RECLEV	*/
177	0x00,	/* SOUND_MIXER_IGAIN	*/
178	0x00	/* SOUND_MIXER_OGAIN	*/
179};
180
181static unsigned char sb16_recmasks_R[SOUND_MIXER_NRDEVICES] =
182{
183	0x00,	/* SOUND_MIXER_VOLUME	*/
184	0x00,	/* SOUND_MIXER_BASS	*/
185	0x00,	/* SOUND_MIXER_TREBLE	*/
186	0x20,	/* SOUND_MIXER_SYNTH	*/
187	0x00,	/* SOUND_MIXER_PCM	*/
188	0x00,	/* SOUND_MIXER_SPEAKER	*/
189	0x08,	/* SOUND_MIXER_LINE	*/
190	0x01,	/* SOUND_MIXER_MIC	*/
191	0x02,	/* SOUND_MIXER_CD	*/
192	0x00,	/* SOUND_MIXER_IMIX	*/
193	0x00,	/* SOUND_MIXER_ALTPCM	*/
194	0x00,	/* SOUND_MIXER_RECLEV	*/
195	0x00,	/* SOUND_MIXER_IGAIN	*/
196	0x00	/* SOUND_MIXER_OGAIN	*/
197};
198
199static char     smw_mix_regs[] =	/* Left mixer registers */
200{
201  0x0b,				/* SOUND_MIXER_VOLUME */
202  0x0d,				/* SOUND_MIXER_BASS */
203  0x0d,				/* SOUND_MIXER_TREBLE */
204  0x05,				/* SOUND_MIXER_SYNTH */
205  0x09,				/* SOUND_MIXER_PCM */
206  0x00,				/* SOUND_MIXER_SPEAKER */
207  0x03,				/* SOUND_MIXER_LINE */
208  0x01,				/* SOUND_MIXER_MIC */
209  0x07,				/* SOUND_MIXER_CD */
210  0x00,				/* SOUND_MIXER_IMIX */
211  0x00,				/* SOUND_MIXER_ALTPCM */
212  0x00,				/* SOUND_MIXER_RECLEV */
213  0x00,				/* SOUND_MIXER_IGAIN */
214  0x00,				/* SOUND_MIXER_OGAIN */
215  0x00,				/* SOUND_MIXER_LINE1 */
216  0x00,				/* SOUND_MIXER_LINE2 */
217  0x00				/* SOUND_MIXER_LINE3 */
218};
219
220static int      sbmixnum = 1;
221
222static void     sb_mixer_reset(sb_devc * devc);
223
224void sb_mixer_set_stereo(sb_devc * devc, int mode)
225{
226	sb_chgmixer(devc, OUT_FILTER, STEREO_DAC, (mode ? STEREO_DAC : MONO_DAC));
227}
228
229static int detect_mixer(sb_devc * devc)
230{
231	/* Just trust the mixer is there */
232	return 1;
233}
234
235static void oss_change_bits(sb_devc *devc, unsigned char *regval, int dev, int chn, int newval)
236{
237	unsigned char mask;
238	int shift;
239
240	mask = (1 << (*devc->iomap)[dev][chn].nbits) - 1;
241	newval = (int) ((newval * mask) + 50) / 100;	/* Scale */
242
243	shift = (*devc->iomap)[dev][chn].bitoffs - (*devc->iomap)[dev][LEFT_CHN].nbits + 1;
244
245	*regval &= ~(mask << shift);	/* Mask out previous value */
246	*regval |= (newval & mask) << shift;	/* Set the new value */
247}
248
249static int sb_mixer_get(sb_devc * devc, int dev)
250{
251	if (!((1 << dev) & devc->supported_devices))
252		return -EINVAL;
253	return devc->levels[dev];
254}
255
256void smw_mixer_init(sb_devc * devc)
257{
258	int i;
259
260	sb_setmixer(devc, 0x00, 0x18);	/* Mute unused (Telephone) line */
261	sb_setmixer(devc, 0x10, 0x38);	/* Config register 2 */
262
263	devc->supported_devices = 0;
264	for (i = 0; i < sizeof(smw_mix_regs); i++)
265		if (smw_mix_regs[i] != 0)
266			devc->supported_devices |= (1 << i);
267
268	devc->supported_rec_devices = devc->supported_devices &
269		~(SOUND_MASK_BASS | SOUND_MASK_TREBLE | SOUND_MASK_PCM | SOUND_MASK_VOLUME);
270	sb_mixer_reset(devc);
271}
272
273int sb_common_mixer_set(sb_devc * devc, int dev, int left, int right)
274{
275	int regoffs;
276	unsigned char val;
277
278	if ((dev < 0) || (dev >= devc->iomap_sz))
279		return -EINVAL;
280
281	regoffs = (*devc->iomap)[dev][LEFT_CHN].regno;
282
283	if (regoffs == 0)
284		return -EINVAL;
285
286	val = sb_getmixer(devc, regoffs);
287	oss_change_bits(devc, &val, dev, LEFT_CHN, left);
288
289	if ((*devc->iomap)[dev][RIGHT_CHN].regno != regoffs)	/*
290								 * Change register
291								 */
292	{
293		sb_setmixer(devc, regoffs, val);	/*
294							 * Save the old one
295							 */
296		regoffs = (*devc->iomap)[dev][RIGHT_CHN].regno;
297
298		if (regoffs == 0)
299			return left | (left << 8);	/*
300							 * Just left channel present
301							 */
302
303		val = sb_getmixer(devc, regoffs);	/*
304							 * Read the new one
305							 */
306	}
307	oss_change_bits(devc, &val, dev, RIGHT_CHN, right);
308
309	sb_setmixer(devc, regoffs, val);
310
311	return left | (right << 8);
312}
313
314static int smw_mixer_set(sb_devc * devc, int dev, int left, int right)
315{
316	int reg, val;
317
318	switch (dev)
319	{
320		case SOUND_MIXER_VOLUME:
321			sb_setmixer(devc, 0x0b, 96 - (96 * left / 100));	/* 96=mute, 0=max */
322			sb_setmixer(devc, 0x0c, 96 - (96 * right / 100));
323			break;
324
325		case SOUND_MIXER_BASS:
326		case SOUND_MIXER_TREBLE:
327			devc->levels[dev] = left | (right << 8);
328			/* Set left bass and treble values */
329			val = ((devc->levels[SOUND_MIXER_TREBLE] & 0xff) * 16 / (unsigned) 100) << 4;
330			val |= ((devc->levels[SOUND_MIXER_BASS] & 0xff) * 16 / (unsigned) 100) & 0x0f;
331			sb_setmixer(devc, 0x0d, val);
332
333			/* Set right bass and treble values */
334			val = (((devc->levels[SOUND_MIXER_TREBLE] >> 8) & 0xff) * 16 / (unsigned) 100) << 4;
335			val |= (((devc->levels[SOUND_MIXER_BASS] >> 8) & 0xff) * 16 / (unsigned) 100) & 0x0f;
336			sb_setmixer(devc, 0x0e, val);
337		
338			break;
339
340		default:
341			/* bounds check */
342			if (dev < 0 || dev >= ARRAY_SIZE(smw_mix_regs))
343				return -EINVAL;
344			reg = smw_mix_regs[dev];
345			if (reg == 0)
346				return -EINVAL;
347			sb_setmixer(devc, reg, (24 - (24 * left / 100)) | 0x20);	/* 24=mute, 0=max */
348			sb_setmixer(devc, reg + 1, (24 - (24 * right / 100)) | 0x40);
349	}
350
351	devc->levels[dev] = left | (right << 8);
352	return left | (right << 8);
353}
354
355static int sb_mixer_set(sb_devc * devc, int dev, int value)
356{
357	int left = value & 0x000000ff;
358	int right = (value & 0x0000ff00) >> 8;
359	int retval;
360
361	if (left > 100)
362		left = 100;
363	if (right > 100)
364		right = 100;
365
366	if ((dev < 0) || (dev > 31))
367		return -EINVAL;
368
369	if (!(devc->supported_devices & (1 << dev)))	/*
370							 * Not supported
371							 */
372		return -EINVAL;
373
374	/* Differentiate depending on the chipsets */
375	switch (devc->model) {
376	case MDL_SMW:
377		retval = smw_mixer_set(devc, dev, left, right);
378		break;
379	case MDL_ESS:
380		retval = ess_mixer_set(devc, dev, left, right);
381		break;
382	default:
383		retval = sb_common_mixer_set(devc, dev, left, right);
384	}
385	if (retval >= 0) devc->levels[dev] = retval;
386
387	return retval;
388}
389
390/*
391 * set_recsrc doesn't apply to ES188x
392 */
393static void set_recsrc(sb_devc * devc, int src)
394{
395	sb_setmixer(devc, RECORD_SRC, (sb_getmixer(devc, RECORD_SRC) & ~7) | (src & 0x7));
396}
397
398static int set_recmask(sb_devc * devc, int mask)
399{
400	int devmask, i;
401	unsigned char  regimageL, regimageR;
402
403	devmask = mask & devc->supported_rec_devices;
404
405	switch (devc->model)
406	{
407		case MDL_SBPRO:
408		case MDL_ESS:
409		case MDL_JAZZ:
410		case MDL_SMW:
411			if (devc->model == MDL_ESS && ess_set_recmask (devc, &devmask)) {
412				break;
413			}
414			if (devmask != SOUND_MASK_MIC &&
415				devmask != SOUND_MASK_LINE &&
416				devmask != SOUND_MASK_CD)
417			{
418				/*
419				 * More than one device selected. Drop the
420				 * previous selection
421				 */
422				devmask &= ~devc->recmask;
423			}
424			if (devmask != SOUND_MASK_MIC &&
425				devmask != SOUND_MASK_LINE &&
426				devmask != SOUND_MASK_CD)
427			{
428				/*
429				 * More than one device selected. Default to
430				 * mic
431				 */
432				devmask = SOUND_MASK_MIC;
433			}
434			if (devmask ^ devc->recmask)	/*
435							 *	Input source changed
436							 */
437			{
438				switch (devmask)
439				{
440					case SOUND_MASK_MIC:
441						set_recsrc(devc, SRC__MIC);
442						break;
443
444					case SOUND_MASK_LINE:
445						set_recsrc(devc, SRC__LINE);
446						break;
447
448					case SOUND_MASK_CD:
449						set_recsrc(devc, SRC__CD);
450						break;
451
452					default:
453						set_recsrc(devc, SRC__MIC);
454				}
455			}
456			break;
457
458		case MDL_SB16:
459			if (!devmask)
460				devmask = SOUND_MASK_MIC;
461
462			if (devc->submodel == SUBMDL_ALS007) 
463			{
464				switch (devmask) 
465				{
466					case SOUND_MASK_LINE:
467						sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_LINE);
468						break;
469					case SOUND_MASK_CD:
470						sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_CD);
471						break;
472					case SOUND_MASK_SYNTH:
473						sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_SYNTH);
474						break;
475					default:           /* Also takes care of SOUND_MASK_MIC case */
476						sb_setmixer(devc, ALS007_RECORD_SRC, ALS007_MIC);
477						break;
478				}
479			}
480			else
481			{
482				regimageL = regimageR = 0;
483				for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
484				{
485					if ((1 << i) & devmask)
486					{
487						regimageL |= sb16_recmasks_L[i];
488						regimageR |= sb16_recmasks_R[i];
489					}
490					sb_setmixer (devc, SB16_IMASK_L, regimageL);
491					sb_setmixer (devc, SB16_IMASK_R, regimageR);
492				}
493			}
494			break;
495	}
496	devc->recmask = devmask;
497	return devc->recmask;
498}
499
500static int set_outmask(sb_devc * devc, int mask)
501{
502	int devmask, i;
503	unsigned char  regimage;
504
505	devmask = mask & devc->supported_out_devices;
506
507	switch (devc->model)
508	{
509		case MDL_SB16:
510			if (devc->submodel == SUBMDL_ALS007) 
511				break;
512			else
513			{
514				regimage = 0;
515				for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
516				{
517					if ((1 << i) & devmask)
518					{
519						regimage |= (sb16_recmasks_L[i] | sb16_recmasks_R[i]);
520					}
521					sb_setmixer (devc, SB16_OMASK, regimage);
522				}
523			}
524			break;
525		default:
526			break;
527	}
528
529	devc->outmask = devmask;
530	return devc->outmask;
531}
532
533static int sb_mixer_ioctl(int dev, unsigned int cmd, void __user *arg)
534{
535	sb_devc *devc = mixer_devs[dev]->devc;
536	int val, ret;
537	int __user *p = arg;
538
539	/*
540	 * Use ioctl(fd, SOUND_MIXER_AGC, &mode) to turn AGC off (0) or on (1).
541	 * Use ioctl(fd, SOUND_MIXER_3DSE, &mode) to turn 3DSE off (0) or on (1)
542	 *					      or mode==2 put 3DSE state to mode.
543	 */
544	if (devc->model == MDL_SB16) {
545		if (cmd == SOUND_MIXER_AGC) 
546		{
547			if (get_user(val, p))
548				return -EFAULT;
549			sb_setmixer(devc, 0x43, (~val) & 0x01);
550			return 0;
551		}
552		if (cmd == SOUND_MIXER_3DSE) 
553		{
554			/* I put here 15, but I don't know the exact version.
555			   At least my 4.13 havn't 3DSE, 4.16 has it. */
556			if (devc->minor < 15)
557				return -EINVAL;
558			if (get_user(val, p))
559				return -EFAULT;
560			if (val == 0 || val == 1)
561				sb_chgmixer(devc, AWE_3DSE, 0x01, val);
562			else if (val == 2)
563			{
564				ret = sb_getmixer(devc, AWE_3DSE)&0x01;
565				return put_user(ret, p);
566			}
567			else
568				return -EINVAL;
569			return 0;
570		}
571	}
572	if (((cmd >> 8) & 0xff) == 'M') 
573	{
574		if (_SIOC_DIR(cmd) & _SIOC_WRITE) 
575		{
576			if (get_user(val, p))
577				return -EFAULT;
578			switch (cmd & 0xff) 
579			{
580				case SOUND_MIXER_RECSRC:
581					ret = set_recmask(devc, val);
582					break;
583
584				case SOUND_MIXER_OUTSRC:
585					ret = set_outmask(devc, val);
586					break;
587
588				default:
589					ret = sb_mixer_set(devc, cmd & 0xff, val);
590			}
591		}
592		else switch (cmd & 0xff) 
593		{
594			case SOUND_MIXER_RECSRC:
595				ret = devc->recmask;
596				break;
597				  
598			case SOUND_MIXER_OUTSRC:
599				ret = devc->outmask;
600				break;
601				  
602			case SOUND_MIXER_DEVMASK:
603				ret = devc->supported_devices;
604				break;
605				  
606			case SOUND_MIXER_STEREODEVS:
607				ret = devc->supported_devices;
608				/* The ESS seems to have stereo mic controls */
609				if (devc->model == MDL_ESS)
610					ret &= ~(SOUND_MASK_SPEAKER|SOUND_MASK_IMIX);
611				else if (devc->model != MDL_JAZZ && devc->model != MDL_SMW)
612					ret &= ~(SOUND_MASK_MIC | SOUND_MASK_SPEAKER | SOUND_MASK_IMIX);
613				break;
614				  
615			case SOUND_MIXER_RECMASK:
616				ret = devc->supported_rec_devices;
617				break;
618				  
619			case SOUND_MIXER_OUTMASK:
620				ret = devc->supported_out_devices;
621				break;
622				  
623			case SOUND_MIXER_CAPS:
624				ret = devc->mixer_caps;
625				break;
626				    
627			default:
628				ret = sb_mixer_get(devc, cmd & 0xff);
629				break;
630		}
631		return put_user(ret, p); 
632	} else
633		return -EINVAL;
634}
635
636static struct mixer_operations sb_mixer_operations =
637{
638	.owner	= THIS_MODULE,
639	.id	= "SB",
640	.name	= "Sound Blaster",
641	.ioctl	= sb_mixer_ioctl
642};
643
644static struct mixer_operations als007_mixer_operations =
645{
646	.owner	= THIS_MODULE,
647	.id	= "ALS007",
648	.name	= "Avance ALS-007",
649	.ioctl	= sb_mixer_ioctl
650};
651
652static void sb_mixer_reset(sb_devc * devc)
653{
654	char name[32];
655	int i;
656
657	sprintf(name, "SB_%d", devc->sbmixnum);
658
659	if (devc->sbmo.sm_games)
660		devc->levels = load_mixer_volumes(name, smg_default_levels, 1);
661	else
662		devc->levels = load_mixer_volumes(name, sb_default_levels, 1);
663
664	for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
665		sb_mixer_set(devc, i, devc->levels[i]);
666
667	if (devc->model != MDL_ESS || !ess_mixer_reset (devc)) {
668		set_recmask(devc, SOUND_MASK_MIC);
669	}
670}
671
672int sb_mixer_init(sb_devc * devc, struct module *owner)
673{
674	int mixer_type = 0;
675	int m;
676
677	devc->sbmixnum = sbmixnum++;
678	devc->levels = NULL;
679
680	sb_setmixer(devc, 0x00, 0);	/* Reset mixer */
681
682	if (!(mixer_type = detect_mixer(devc)))
683		return 0;	/* No mixer. Why? */
684
685	switch (devc->model)
686	{
687		case MDL_ESSPCI:
688		case MDL_YMPCI:
689		case MDL_SBPRO:
690		case MDL_AZTECH:
691		case MDL_JAZZ:
692			devc->mixer_caps = SOUND_CAP_EXCL_INPUT;
693			devc->supported_devices = SBPRO_MIXER_DEVICES;
694			devc->supported_rec_devices = SBPRO_RECORDING_DEVICES;
695			devc->iomap = &sbpro_mix;
696			devc->iomap_sz = ARRAY_SIZE(sbpro_mix);
697			break;
698
699		case MDL_ESS:
700			ess_mixer_init (devc);
701			break;
702
703		case MDL_SMW:
704			devc->mixer_caps = SOUND_CAP_EXCL_INPUT;
705			devc->supported_devices = 0;
706			devc->supported_rec_devices = 0;
707			devc->iomap = &sbpro_mix;
708			devc->iomap_sz = ARRAY_SIZE(sbpro_mix);
709			smw_mixer_init(devc);
710			break;
711
712		case MDL_SB16:
713			devc->mixer_caps = 0;
714			devc->supported_rec_devices = SB16_RECORDING_DEVICES;
715			devc->supported_out_devices = SB16_OUTFILTER_DEVICES;
716			if (devc->submodel != SUBMDL_ALS007)
717			{
718				devc->supported_devices = SB16_MIXER_DEVICES;
719				devc->iomap = &sb16_mix;
720				devc->iomap_sz = ARRAY_SIZE(sb16_mix);
721			}
722			else
723			{
724				devc->supported_devices = ALS007_MIXER_DEVICES;
725				devc->iomap = &als007_mix;
726				devc->iomap_sz = ARRAY_SIZE(als007_mix);
727			}
728			break;
729
730		default:
731			printk(KERN_WARNING "sb_mixer: Unsupported mixer type %d\n", devc->model);
732			return 0;
733	}
734
735	m = sound_alloc_mixerdev();
736	if (m == -1)
737		return 0;
738
739	mixer_devs[m] = kmalloc(sizeof(struct mixer_operations), GFP_KERNEL);
740	if (mixer_devs[m] == NULL)
741	{
742		printk(KERN_ERR "sb_mixer: Can't allocate memory\n");
743		sound_unload_mixerdev(m);
744		return 0;
745	}
746
747	if (devc->submodel != SUBMDL_ALS007)
748		memcpy ((char *) mixer_devs[m], (char *) &sb_mixer_operations, sizeof (struct mixer_operations));
749	else
750		memcpy ((char *) mixer_devs[m], (char *) &als007_mixer_operations, sizeof (struct mixer_operations));
751
752	mixer_devs[m]->devc = devc;
753
754	if (owner)
755			 mixer_devs[m]->owner = owner;
756	
757	devc->my_mixerdev = m;
758	sb_mixer_reset(devc);
759	return 1;
760}
761
762void sb_mixer_unload(sb_devc *devc)
763{
764	if (devc->my_mixerdev == -1)
765		return;
766
767	kfree(mixer_devs[devc->my_mixerdev]);
768	sound_unload_mixerdev(devc->my_mixerdev);
769	sbmixnum--;
770}