xref: /openbmc/linux/sound/isa/sb/sb_mixer.c (revision 96de0e252cedffad61b3cb5e05662c591898e69a)
1 /*
2  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
3  *  Routines for Sound Blaster mixer control
4  *
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21 
22 #include <sound/driver.h>
23 #include <asm/io.h>
24 #include <linux/delay.h>
25 #include <linux/time.h>
26 #include <sound/core.h>
27 #include <sound/sb.h>
28 #include <sound/control.h>
29 
30 #undef IO_DEBUG
31 
32 void snd_sbmixer_write(struct snd_sb *chip, unsigned char reg, unsigned char data)
33 {
34 	outb(reg, SBP(chip, MIXER_ADDR));
35 	udelay(10);
36 	outb(data, SBP(chip, MIXER_DATA));
37 	udelay(10);
38 #ifdef IO_DEBUG
39 	snd_printk(KERN_DEBUG "mixer_write 0x%x 0x%x\n", reg, data);
40 #endif
41 }
42 
43 unsigned char snd_sbmixer_read(struct snd_sb *chip, unsigned char reg)
44 {
45 	unsigned char result;
46 
47 	outb(reg, SBP(chip, MIXER_ADDR));
48 	udelay(10);
49 	result = inb(SBP(chip, MIXER_DATA));
50 	udelay(10);
51 #ifdef IO_DEBUG
52 	snd_printk(KERN_DEBUG "mixer_read 0x%x 0x%x\n", reg, result);
53 #endif
54 	return result;
55 }
56 
57 /*
58  * Single channel mixer element
59  */
60 
61 static int snd_sbmixer_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
62 {
63 	int mask = (kcontrol->private_value >> 24) & 0xff;
64 
65 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
66 	uinfo->count = 1;
67 	uinfo->value.integer.min = 0;
68 	uinfo->value.integer.max = mask;
69 	return 0;
70 }
71 
72 static int snd_sbmixer_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
73 {
74 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
75 	unsigned long flags;
76 	int reg = kcontrol->private_value & 0xff;
77 	int shift = (kcontrol->private_value >> 16) & 0xff;
78 	int mask = (kcontrol->private_value >> 24) & 0xff;
79 	unsigned char val;
80 
81 	spin_lock_irqsave(&sb->mixer_lock, flags);
82 	val = (snd_sbmixer_read(sb, reg) >> shift) & mask;
83 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
84 	ucontrol->value.integer.value[0] = val;
85 	return 0;
86 }
87 
88 static int snd_sbmixer_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
89 {
90 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
91 	unsigned long flags;
92 	int reg = kcontrol->private_value & 0xff;
93 	int shift = (kcontrol->private_value >> 16) & 0x07;
94 	int mask = (kcontrol->private_value >> 24) & 0xff;
95 	int change;
96 	unsigned char val, oval;
97 
98 	val = (ucontrol->value.integer.value[0] & mask) << shift;
99 	spin_lock_irqsave(&sb->mixer_lock, flags);
100 	oval = snd_sbmixer_read(sb, reg);
101 	val = (oval & ~(mask << shift)) | val;
102 	change = val != oval;
103 	if (change)
104 		snd_sbmixer_write(sb, reg, val);
105 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
106 	return change;
107 }
108 
109 /*
110  * Double channel mixer element
111  */
112 
113 static int snd_sbmixer_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
114 {
115 	int mask = (kcontrol->private_value >> 24) & 0xff;
116 
117 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
118 	uinfo->count = 2;
119 	uinfo->value.integer.min = 0;
120 	uinfo->value.integer.max = mask;
121 	return 0;
122 }
123 
124 static int snd_sbmixer_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
125 {
126 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
127 	unsigned long flags;
128 	int left_reg = kcontrol->private_value & 0xff;
129 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
130 	int left_shift = (kcontrol->private_value >> 16) & 0x07;
131 	int right_shift = (kcontrol->private_value >> 19) & 0x07;
132 	int mask = (kcontrol->private_value >> 24) & 0xff;
133 	unsigned char left, right;
134 
135 	spin_lock_irqsave(&sb->mixer_lock, flags);
136 	left = (snd_sbmixer_read(sb, left_reg) >> left_shift) & mask;
137 	right = (snd_sbmixer_read(sb, right_reg) >> right_shift) & mask;
138 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
139 	ucontrol->value.integer.value[0] = left;
140 	ucontrol->value.integer.value[1] = right;
141 	return 0;
142 }
143 
144 static int snd_sbmixer_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
145 {
146 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
147 	unsigned long flags;
148 	int left_reg = kcontrol->private_value & 0xff;
149 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
150 	int left_shift = (kcontrol->private_value >> 16) & 0x07;
151 	int right_shift = (kcontrol->private_value >> 19) & 0x07;
152 	int mask = (kcontrol->private_value >> 24) & 0xff;
153 	int change;
154 	unsigned char left, right, oleft, oright;
155 
156 	left = (ucontrol->value.integer.value[0] & mask) << left_shift;
157 	right = (ucontrol->value.integer.value[1] & mask) << right_shift;
158 	spin_lock_irqsave(&sb->mixer_lock, flags);
159 	if (left_reg == right_reg) {
160 		oleft = snd_sbmixer_read(sb, left_reg);
161 		left = (oleft & ~((mask << left_shift) | (mask << right_shift))) | left | right;
162 		change = left != oleft;
163 		if (change)
164 			snd_sbmixer_write(sb, left_reg, left);
165 	} else {
166 		oleft = snd_sbmixer_read(sb, left_reg);
167 		oright = snd_sbmixer_read(sb, right_reg);
168 		left = (oleft & ~(mask << left_shift)) | left;
169 		right = (oright & ~(mask << right_shift)) | right;
170 		change = left != oleft || right != oright;
171 		if (change) {
172 			snd_sbmixer_write(sb, left_reg, left);
173 			snd_sbmixer_write(sb, right_reg, right);
174 		}
175 	}
176 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
177 	return change;
178 }
179 
180 /*
181  * DT-019x / ALS-007 capture/input switch
182  */
183 
184 static int snd_dt019x_input_sw_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
185 {
186 	static char *texts[5] = {
187 		"CD", "Mic", "Line", "Synth", "Master"
188 	};
189 
190 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
191 	uinfo->count = 1;
192 	uinfo->value.enumerated.items = 5;
193 	if (uinfo->value.enumerated.item > 4)
194 		uinfo->value.enumerated.item = 4;
195 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
196 	return 0;
197 }
198 
199 static int snd_dt019x_input_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
200 {
201 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
202 	unsigned long flags;
203 	unsigned char oval;
204 
205 	spin_lock_irqsave(&sb->mixer_lock, flags);
206 	oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
207 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
208 	switch (oval & 0x07) {
209 	case SB_DT019X_CAP_CD:
210 		ucontrol->value.enumerated.item[0] = 0;
211 		break;
212 	case SB_DT019X_CAP_MIC:
213 		ucontrol->value.enumerated.item[0] = 1;
214 		break;
215 	case SB_DT019X_CAP_LINE:
216 		ucontrol->value.enumerated.item[0] = 2;
217 		break;
218 	case SB_DT019X_CAP_MAIN:
219 		ucontrol->value.enumerated.item[0] = 4;
220 		break;
221 	/* To record the synth on these cards you must record the main.   */
222 	/* Thus SB_DT019X_CAP_SYNTH == SB_DT019X_CAP_MAIN and would cause */
223 	/* duplicate case labels if left uncommented. */
224 	/* case SB_DT019X_CAP_SYNTH:
225 	 *	ucontrol->value.enumerated.item[0] = 3;
226 	 *	break;
227 	 */
228 	default:
229 		ucontrol->value.enumerated.item[0] = 4;
230 		break;
231 	}
232 	return 0;
233 }
234 
235 static int snd_dt019x_input_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
236 {
237 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
238 	unsigned long flags;
239 	int change;
240 	unsigned char nval, oval;
241 
242 	if (ucontrol->value.enumerated.item[0] > 4)
243 		return -EINVAL;
244 	switch (ucontrol->value.enumerated.item[0]) {
245 	case 0:
246 		nval = SB_DT019X_CAP_CD;
247 		break;
248 	case 1:
249 		nval = SB_DT019X_CAP_MIC;
250 		break;
251 	case 2:
252 		nval = SB_DT019X_CAP_LINE;
253 		break;
254 	case 3:
255 		nval = SB_DT019X_CAP_SYNTH;
256 		break;
257 	case 4:
258 		nval = SB_DT019X_CAP_MAIN;
259 		break;
260 	default:
261 		nval = SB_DT019X_CAP_MAIN;
262 	}
263 	spin_lock_irqsave(&sb->mixer_lock, flags);
264 	oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
265 	change = nval != oval;
266 	if (change)
267 		snd_sbmixer_write(sb, SB_DT019X_CAPTURE_SW, nval);
268 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
269 	return change;
270 }
271 
272 /*
273  * SBPRO input multiplexer
274  */
275 
276 static int snd_sb8mixer_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
277 {
278 	static char *texts[3] = {
279 		"Mic", "CD", "Line"
280 	};
281 
282 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
283 	uinfo->count = 1;
284 	uinfo->value.enumerated.items = 3;
285 	if (uinfo->value.enumerated.item > 2)
286 		uinfo->value.enumerated.item = 2;
287 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
288 	return 0;
289 }
290 
291 
292 static int snd_sb8mixer_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
293 {
294 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
295 	unsigned long flags;
296 	unsigned char oval;
297 
298 	spin_lock_irqsave(&sb->mixer_lock, flags);
299 	oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
300 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
301 	switch ((oval >> 0x01) & 0x03) {
302 	case SB_DSP_MIXS_CD:
303 		ucontrol->value.enumerated.item[0] = 1;
304 		break;
305 	case SB_DSP_MIXS_LINE:
306 		ucontrol->value.enumerated.item[0] = 2;
307 		break;
308 	default:
309 		ucontrol->value.enumerated.item[0] = 0;
310 		break;
311 	}
312 	return 0;
313 }
314 
315 static int snd_sb8mixer_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
316 {
317 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
318 	unsigned long flags;
319 	int change;
320 	unsigned char nval, oval;
321 
322 	if (ucontrol->value.enumerated.item[0] > 2)
323 		return -EINVAL;
324 	switch (ucontrol->value.enumerated.item[0]) {
325 	case 1:
326 		nval = SB_DSP_MIXS_CD;
327 		break;
328 	case 2:
329 		nval = SB_DSP_MIXS_LINE;
330 		break;
331 	default:
332 		nval = SB_DSP_MIXS_MIC;
333 	}
334 	nval <<= 1;
335 	spin_lock_irqsave(&sb->mixer_lock, flags);
336 	oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
337 	nval |= oval & ~0x06;
338 	change = nval != oval;
339 	if (change)
340 		snd_sbmixer_write(sb, SB_DSP_CAPTURE_SOURCE, nval);
341 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
342 	return change;
343 }
344 
345 /*
346  * SB16 input switch
347  */
348 
349 static int snd_sb16mixer_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
350 {
351 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
352 	uinfo->count = 4;
353 	uinfo->value.integer.min = 0;
354 	uinfo->value.integer.max = 1;
355 	return 0;
356 }
357 
358 static int snd_sb16mixer_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
359 {
360 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
361 	unsigned long flags;
362 	int reg1 = kcontrol->private_value & 0xff;
363 	int reg2 = (kcontrol->private_value >> 8) & 0xff;
364 	int left_shift = (kcontrol->private_value >> 16) & 0x0f;
365 	int right_shift = (kcontrol->private_value >> 24) & 0x0f;
366 	unsigned char val1, val2;
367 
368 	spin_lock_irqsave(&sb->mixer_lock, flags);
369 	val1 = snd_sbmixer_read(sb, reg1);
370 	val2 = snd_sbmixer_read(sb, reg2);
371 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
372 	ucontrol->value.integer.value[0] = (val1 >> left_shift) & 0x01;
373 	ucontrol->value.integer.value[1] = (val2 >> left_shift) & 0x01;
374 	ucontrol->value.integer.value[2] = (val1 >> right_shift) & 0x01;
375 	ucontrol->value.integer.value[3] = (val2 >> right_shift) & 0x01;
376 	return 0;
377 }
378 
379 static int snd_sb16mixer_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
380 {
381 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
382 	unsigned long flags;
383 	int reg1 = kcontrol->private_value & 0xff;
384 	int reg2 = (kcontrol->private_value >> 8) & 0xff;
385 	int left_shift = (kcontrol->private_value >> 16) & 0x0f;
386 	int right_shift = (kcontrol->private_value >> 24) & 0x0f;
387 	int change;
388 	unsigned char val1, val2, oval1, oval2;
389 
390 	spin_lock_irqsave(&sb->mixer_lock, flags);
391 	oval1 = snd_sbmixer_read(sb, reg1);
392 	oval2 = snd_sbmixer_read(sb, reg2);
393 	val1 = oval1 & ~((1 << left_shift) | (1 << right_shift));
394 	val2 = oval2 & ~((1 << left_shift) | (1 << right_shift));
395 	val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
396 	val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
397 	val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
398 	val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
399 	change = val1 != oval1 || val2 != oval2;
400 	if (change) {
401 		snd_sbmixer_write(sb, reg1, val1);
402 		snd_sbmixer_write(sb, reg2, val2);
403 	}
404 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
405 	return change;
406 }
407 
408 
409 /*
410  */
411 /*
412  */
413 int snd_sbmixer_add_ctl(struct snd_sb *chip, const char *name, int index, int type, unsigned long value)
414 {
415 	static struct snd_kcontrol_new newctls[] = {
416 		[SB_MIX_SINGLE] = {
417 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
418 			.info = snd_sbmixer_info_single,
419 			.get = snd_sbmixer_get_single,
420 			.put = snd_sbmixer_put_single,
421 		},
422 		[SB_MIX_DOUBLE] = {
423 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
424 			.info = snd_sbmixer_info_double,
425 			.get = snd_sbmixer_get_double,
426 			.put = snd_sbmixer_put_double,
427 		},
428 		[SB_MIX_INPUT_SW] = {
429 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
430 			.info = snd_sb16mixer_info_input_sw,
431 			.get = snd_sb16mixer_get_input_sw,
432 			.put = snd_sb16mixer_put_input_sw,
433 		},
434 		[SB_MIX_CAPTURE_PRO] = {
435 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
436 			.info = snd_sb8mixer_info_mux,
437 			.get = snd_sb8mixer_get_mux,
438 			.put = snd_sb8mixer_put_mux,
439 		},
440 		[SB_MIX_CAPTURE_DT019X] = {
441 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
442 			.info = snd_dt019x_input_sw_info,
443 			.get = snd_dt019x_input_sw_get,
444 			.put = snd_dt019x_input_sw_put,
445 		},
446 	};
447 	struct snd_kcontrol *ctl;
448 	int err;
449 
450 	ctl = snd_ctl_new1(&newctls[type], chip);
451 	if (! ctl)
452 		return -ENOMEM;
453 	strlcpy(ctl->id.name, name, sizeof(ctl->id.name));
454 	ctl->id.index = index;
455 	ctl->private_value = value;
456 	if ((err = snd_ctl_add(chip->card, ctl)) < 0)
457 		return err;
458 	return 0;
459 }
460 
461 /*
462  * SB 2.0 specific mixer elements
463  */
464 
465 static struct sbmix_elem snd_sb20_ctl_master_play_vol =
466 	SB_SINGLE("Master Playback Volume", SB_DSP20_MASTER_DEV, 1, 7);
467 static struct sbmix_elem snd_sb20_ctl_pcm_play_vol =
468 	SB_SINGLE("PCM Playback Volume", SB_DSP20_PCM_DEV, 1, 3);
469 static struct sbmix_elem snd_sb20_ctl_synth_play_vol =
470 	SB_SINGLE("Synth Playback Volume", SB_DSP20_FM_DEV, 1, 7);
471 static struct sbmix_elem snd_sb20_ctl_cd_play_vol =
472 	SB_SINGLE("CD Playback Volume", SB_DSP20_CD_DEV, 1, 7);
473 
474 static struct sbmix_elem *snd_sb20_controls[] = {
475 	&snd_sb20_ctl_master_play_vol,
476 	&snd_sb20_ctl_pcm_play_vol,
477 	&snd_sb20_ctl_synth_play_vol,
478 	&snd_sb20_ctl_cd_play_vol
479 };
480 
481 static unsigned char snd_sb20_init_values[][2] = {
482 	{ SB_DSP20_MASTER_DEV, 0 },
483 	{ SB_DSP20_FM_DEV, 0 },
484 };
485 
486 /*
487  * SB Pro specific mixer elements
488  */
489 static struct sbmix_elem snd_sbpro_ctl_master_play_vol =
490 	SB_DOUBLE("Master Playback Volume", SB_DSP_MASTER_DEV, SB_DSP_MASTER_DEV, 5, 1, 7);
491 static struct sbmix_elem snd_sbpro_ctl_pcm_play_vol =
492 	SB_DOUBLE("PCM Playback Volume", SB_DSP_PCM_DEV, SB_DSP_PCM_DEV, 5, 1, 7);
493 static struct sbmix_elem snd_sbpro_ctl_pcm_play_filter =
494 	SB_SINGLE("PCM Playback Filter", SB_DSP_PLAYBACK_FILT, 5, 1);
495 static struct sbmix_elem snd_sbpro_ctl_synth_play_vol =
496 	SB_DOUBLE("Synth Playback Volume", SB_DSP_FM_DEV, SB_DSP_FM_DEV, 5, 1, 7);
497 static struct sbmix_elem snd_sbpro_ctl_cd_play_vol =
498 	SB_DOUBLE("CD Playback Volume", SB_DSP_CD_DEV, SB_DSP_CD_DEV, 5, 1, 7);
499 static struct sbmix_elem snd_sbpro_ctl_line_play_vol =
500 	SB_DOUBLE("Line Playback Volume", SB_DSP_LINE_DEV, SB_DSP_LINE_DEV, 5, 1, 7);
501 static struct sbmix_elem snd_sbpro_ctl_mic_play_vol =
502 	SB_SINGLE("Mic Playback Volume", SB_DSP_MIC_DEV, 1, 3);
503 static struct sbmix_elem snd_sbpro_ctl_capture_source =
504 	{
505 		.name = "Capture Source",
506 		.type = SB_MIX_CAPTURE_PRO
507 	};
508 static struct sbmix_elem snd_sbpro_ctl_capture_filter =
509 	SB_SINGLE("Capture Filter", SB_DSP_CAPTURE_FILT, 5, 1);
510 static struct sbmix_elem snd_sbpro_ctl_capture_low_filter =
511 	SB_SINGLE("Capture Low-Pass Filter", SB_DSP_CAPTURE_FILT, 3, 1);
512 
513 static struct sbmix_elem *snd_sbpro_controls[] = {
514 	&snd_sbpro_ctl_master_play_vol,
515 	&snd_sbpro_ctl_pcm_play_vol,
516 	&snd_sbpro_ctl_pcm_play_filter,
517 	&snd_sbpro_ctl_synth_play_vol,
518 	&snd_sbpro_ctl_cd_play_vol,
519 	&snd_sbpro_ctl_line_play_vol,
520 	&snd_sbpro_ctl_mic_play_vol,
521 	&snd_sbpro_ctl_capture_source,
522 	&snd_sbpro_ctl_capture_filter,
523 	&snd_sbpro_ctl_capture_low_filter
524 };
525 
526 static unsigned char snd_sbpro_init_values[][2] = {
527 	{ SB_DSP_MASTER_DEV, 0 },
528 	{ SB_DSP_PCM_DEV, 0 },
529 	{ SB_DSP_FM_DEV, 0 },
530 };
531 
532 /*
533  * SB16 specific mixer elements
534  */
535 static struct sbmix_elem snd_sb16_ctl_master_play_vol =
536 	SB_DOUBLE("Master Playback Volume", SB_DSP4_MASTER_DEV, (SB_DSP4_MASTER_DEV + 1), 3, 3, 31);
537 static struct sbmix_elem snd_sb16_ctl_3d_enhance_switch =
538 	SB_SINGLE("3D Enhancement Switch", SB_DSP4_3DSE, 0, 1);
539 static struct sbmix_elem snd_sb16_ctl_tone_bass =
540 	SB_DOUBLE("Tone Control - Bass", SB_DSP4_BASS_DEV, (SB_DSP4_BASS_DEV + 1), 4, 4, 15);
541 static struct sbmix_elem snd_sb16_ctl_tone_treble =
542 	SB_DOUBLE("Tone Control - Treble", SB_DSP4_TREBLE_DEV, (SB_DSP4_TREBLE_DEV + 1), 4, 4, 15);
543 static struct sbmix_elem snd_sb16_ctl_pcm_play_vol =
544 	SB_DOUBLE("PCM Playback Volume", SB_DSP4_PCM_DEV, (SB_DSP4_PCM_DEV + 1), 3, 3, 31);
545 static struct sbmix_elem snd_sb16_ctl_synth_capture_route =
546 	SB16_INPUT_SW("Synth Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 6, 5);
547 static struct sbmix_elem snd_sb16_ctl_synth_play_vol =
548 	SB_DOUBLE("Synth Playback Volume", SB_DSP4_SYNTH_DEV, (SB_DSP4_SYNTH_DEV + 1), 3, 3, 31);
549 static struct sbmix_elem snd_sb16_ctl_cd_capture_route =
550 	SB16_INPUT_SW("CD Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 2, 1);
551 static struct sbmix_elem snd_sb16_ctl_cd_play_switch =
552 	SB_DOUBLE("CD Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 2, 1, 1);
553 static struct sbmix_elem snd_sb16_ctl_cd_play_vol =
554 	SB_DOUBLE("CD Playback Volume", SB_DSP4_CD_DEV, (SB_DSP4_CD_DEV + 1), 3, 3, 31);
555 static struct sbmix_elem snd_sb16_ctl_line_capture_route =
556 	SB16_INPUT_SW("Line Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 4, 3);
557 static struct sbmix_elem snd_sb16_ctl_line_play_switch =
558 	SB_DOUBLE("Line Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 4, 3, 1);
559 static struct sbmix_elem snd_sb16_ctl_line_play_vol =
560 	SB_DOUBLE("Line Playback Volume", SB_DSP4_LINE_DEV, (SB_DSP4_LINE_DEV + 1), 3, 3, 31);
561 static struct sbmix_elem snd_sb16_ctl_mic_capture_route =
562 	SB16_INPUT_SW("Mic Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 0, 0);
563 static struct sbmix_elem snd_sb16_ctl_mic_play_switch =
564 	SB_SINGLE("Mic Playback Switch", SB_DSP4_OUTPUT_SW, 0, 1);
565 static struct sbmix_elem snd_sb16_ctl_mic_play_vol =
566 	SB_SINGLE("Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31);
567 static struct sbmix_elem snd_sb16_ctl_pc_speaker_vol =
568 	SB_SINGLE("PC Speaker Volume", SB_DSP4_SPEAKER_DEV, 6, 3);
569 static struct sbmix_elem snd_sb16_ctl_capture_vol =
570 	SB_DOUBLE("Capture Volume", SB_DSP4_IGAIN_DEV, (SB_DSP4_IGAIN_DEV + 1), 6, 6, 3);
571 static struct sbmix_elem snd_sb16_ctl_play_vol =
572 	SB_DOUBLE("Playback Volume", SB_DSP4_OGAIN_DEV, (SB_DSP4_OGAIN_DEV + 1), 6, 6, 3);
573 static struct sbmix_elem snd_sb16_ctl_auto_mic_gain =
574 	SB_SINGLE("Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1);
575 
576 static struct sbmix_elem *snd_sb16_controls[] = {
577 	&snd_sb16_ctl_master_play_vol,
578 	&snd_sb16_ctl_3d_enhance_switch,
579 	&snd_sb16_ctl_tone_bass,
580 	&snd_sb16_ctl_tone_treble,
581 	&snd_sb16_ctl_pcm_play_vol,
582 	&snd_sb16_ctl_synth_capture_route,
583 	&snd_sb16_ctl_synth_play_vol,
584 	&snd_sb16_ctl_cd_capture_route,
585 	&snd_sb16_ctl_cd_play_switch,
586 	&snd_sb16_ctl_cd_play_vol,
587 	&snd_sb16_ctl_line_capture_route,
588 	&snd_sb16_ctl_line_play_switch,
589 	&snd_sb16_ctl_line_play_vol,
590 	&snd_sb16_ctl_mic_capture_route,
591 	&snd_sb16_ctl_mic_play_switch,
592 	&snd_sb16_ctl_mic_play_vol,
593 	&snd_sb16_ctl_pc_speaker_vol,
594 	&snd_sb16_ctl_capture_vol,
595 	&snd_sb16_ctl_play_vol,
596 	&snd_sb16_ctl_auto_mic_gain
597 };
598 
599 static unsigned char snd_sb16_init_values[][2] = {
600 	{ SB_DSP4_MASTER_DEV + 0, 0 },
601 	{ SB_DSP4_MASTER_DEV + 1, 0 },
602 	{ SB_DSP4_PCM_DEV + 0, 0 },
603 	{ SB_DSP4_PCM_DEV + 1, 0 },
604 	{ SB_DSP4_SYNTH_DEV + 0, 0 },
605 	{ SB_DSP4_SYNTH_DEV + 1, 0 },
606 	{ SB_DSP4_INPUT_LEFT, 0 },
607 	{ SB_DSP4_INPUT_RIGHT, 0 },
608 	{ SB_DSP4_OUTPUT_SW, 0 },
609 	{ SB_DSP4_SPEAKER_DEV, 0 },
610 };
611 
612 /*
613  * DT019x specific mixer elements
614  */
615 static struct sbmix_elem snd_dt019x_ctl_master_play_vol =
616 	SB_DOUBLE("Master Playback Volume", SB_DT019X_MASTER_DEV, SB_DT019X_MASTER_DEV, 4,0, 15);
617 static struct sbmix_elem snd_dt019x_ctl_pcm_play_vol =
618 	SB_DOUBLE("PCM Playback Volume", SB_DT019X_PCM_DEV, SB_DT019X_PCM_DEV, 4,0, 15);
619 static struct sbmix_elem snd_dt019x_ctl_synth_play_vol =
620 	SB_DOUBLE("Synth Playback Volume", SB_DT019X_SYNTH_DEV, SB_DT019X_SYNTH_DEV, 4,0, 15);
621 static struct sbmix_elem snd_dt019x_ctl_cd_play_vol =
622 	SB_DOUBLE("CD Playback Volume", SB_DT019X_CD_DEV, SB_DT019X_CD_DEV, 4,0, 15);
623 static struct sbmix_elem snd_dt019x_ctl_mic_play_vol =
624 	SB_SINGLE("Mic Playback Volume", SB_DT019X_MIC_DEV, 4, 7);
625 static struct sbmix_elem snd_dt019x_ctl_pc_speaker_vol =
626 	SB_SINGLE("PC Speaker Volume", SB_DT019X_SPKR_DEV, 0,  7);
627 static struct sbmix_elem snd_dt019x_ctl_line_play_vol =
628 	SB_DOUBLE("Line Playback Volume", SB_DT019X_LINE_DEV, SB_DT019X_LINE_DEV, 4,0, 15);
629 static struct sbmix_elem snd_dt019x_ctl_pcm_play_switch =
630 	SB_DOUBLE("PCM Playback Switch", SB_DT019X_OUTPUT_SW2, SB_DT019X_OUTPUT_SW2, 2,1, 1);
631 static struct sbmix_elem snd_dt019x_ctl_synth_play_switch =
632 	SB_DOUBLE("Synth Playback Switch", SB_DT019X_OUTPUT_SW2, SB_DT019X_OUTPUT_SW2, 4,3, 1);
633 static struct sbmix_elem snd_dt019x_ctl_capture_source =
634 	{
635 		.name = "Capture Source",
636 		.type = SB_MIX_CAPTURE_DT019X
637 	};
638 
639 static struct sbmix_elem *snd_dt019x_controls[] = {
640 	&snd_dt019x_ctl_master_play_vol,
641 	&snd_dt019x_ctl_pcm_play_vol,
642 	&snd_dt019x_ctl_synth_play_vol,
643 	&snd_dt019x_ctl_cd_play_vol,
644 	&snd_dt019x_ctl_mic_play_vol,
645 	&snd_dt019x_ctl_pc_speaker_vol,
646 	&snd_dt019x_ctl_line_play_vol,
647 	&snd_sb16_ctl_mic_play_switch,
648 	&snd_sb16_ctl_cd_play_switch,
649 	&snd_sb16_ctl_line_play_switch,
650 	&snd_dt019x_ctl_pcm_play_switch,
651 	&snd_dt019x_ctl_synth_play_switch,
652 	&snd_dt019x_ctl_capture_source
653 };
654 
655 static unsigned char snd_dt019x_init_values[][2] = {
656         { SB_DT019X_MASTER_DEV, 0 },
657         { SB_DT019X_PCM_DEV, 0 },
658         { SB_DT019X_SYNTH_DEV, 0 },
659         { SB_DT019X_CD_DEV, 0 },
660         { SB_DT019X_MIC_DEV, 0 },	/* Includes PC-speaker in high nibble */
661         { SB_DT019X_LINE_DEV, 0 },
662         { SB_DSP4_OUTPUT_SW, 0 },
663         { SB_DT019X_OUTPUT_SW2, 0 },
664         { SB_DT019X_CAPTURE_SW, 0x06 },
665 };
666 
667 /*
668  * ALS4000 specific mixer elements
669  */
670 /* FIXME: SB_ALS4000_MONO_IO_CTRL needs output select ctrl! */
671 static struct sbmix_elem snd_als4000_ctl_master_mono_playback_switch =
672 	SB_SINGLE("Master Mono Playback Switch", SB_ALS4000_MONO_IO_CTRL, 5, 1);
673 static struct sbmix_elem snd_als4000_ctl_master_mono_capture_route =
674 	SB_SINGLE("Master Mono Capture Route", SB_ALS4000_MONO_IO_CTRL, 6, 0x03);
675 /* FIXME: mono playback switch also available on DT019X? */
676 static struct sbmix_elem snd_als4000_ctl_mono_playback_switch =
677 	SB_SINGLE("Mono Playback Switch", SB_DT019X_OUTPUT_SW2, 0, 1);
678 static struct sbmix_elem snd_als4000_ctl_mic_20db_boost =
679 	SB_SINGLE("Mic Boost (+20dB)", SB_ALS4000_MIC_IN_GAIN, 0, 0x03);
680 static struct sbmix_elem snd_als4000_ctl_mixer_loopback =
681 	SB_SINGLE("Analog Loopback", SB_ALS4000_MIC_IN_GAIN, 7, 0x01);
682 /* FIXME: functionality of 3D controls might be swapped, I didn't find
683  * a description of how to identify what is supposed to be what */
684 static struct sbmix_elem snd_als4000_3d_control_switch =
685 	SB_SINGLE("3D Control - Switch", SB_ALS4000_3D_SND_FX, 6, 0x01);
686 static struct sbmix_elem snd_als4000_3d_control_ratio =
687 	SB_SINGLE("3D Control - Level", SB_ALS4000_3D_SND_FX, 0, 0x07);
688 static struct sbmix_elem snd_als4000_3d_control_freq =
689 	/* FIXME: maybe there's actually some standard 3D ctrl name for it?? */
690 	SB_SINGLE("3D Control - Freq", SB_ALS4000_3D_SND_FX, 4, 0x03);
691 static struct sbmix_elem snd_als4000_3d_control_delay =
692 	/* FIXME: ALS4000a.pdf mentions BBD (Bucket Brigade Device) time delay,
693 	 * but what ALSA 3D attribute is that actually? "Center", "Depth",
694 	 * "Wide" or "Space" or even "Level"? Assuming "Wide" for now... */
695 	SB_SINGLE("3D Control - Wide", SB_ALS4000_3D_TIME_DELAY, 0, 0x0f);
696 static struct sbmix_elem snd_als4000_3d_control_poweroff_switch =
697 	SB_SINGLE("3D PowerOff Switch", SB_ALS4000_3D_TIME_DELAY, 4, 0x01);
698 #ifdef NOT_AVAILABLE
699 static struct sbmix_elem snd_als4000_ctl_fmdac =
700 	SB_SINGLE("FMDAC Switch (Option ?)", SB_ALS4000_FMDAC, 0, 0x01);
701 static struct sbmix_elem snd_als4000_ctl_qsound =
702 	SB_SINGLE("QSound Mode", SB_ALS4000_QSOUND, 1, 0x1f);
703 #endif
704 
705 static struct sbmix_elem *snd_als4000_controls[] = {
706 	&snd_sb16_ctl_master_play_vol,
707 	&snd_dt019x_ctl_pcm_play_switch,
708 	&snd_sb16_ctl_pcm_play_vol,
709 	&snd_sb16_ctl_synth_capture_route,
710 	&snd_dt019x_ctl_synth_play_switch,
711 	&snd_sb16_ctl_synth_play_vol,
712 	&snd_sb16_ctl_cd_capture_route,
713 	&snd_sb16_ctl_cd_play_switch,
714 	&snd_sb16_ctl_cd_play_vol,
715 	&snd_sb16_ctl_line_capture_route,
716 	&snd_sb16_ctl_line_play_switch,
717 	&snd_sb16_ctl_line_play_vol,
718 	&snd_sb16_ctl_mic_capture_route,
719 	&snd_als4000_ctl_mic_20db_boost,
720 	&snd_sb16_ctl_auto_mic_gain,
721 	&snd_sb16_ctl_mic_play_switch,
722 	&snd_sb16_ctl_mic_play_vol,
723 	&snd_sb16_ctl_pc_speaker_vol,
724 	&snd_sb16_ctl_capture_vol,
725 	&snd_sb16_ctl_play_vol,
726 	&snd_als4000_ctl_master_mono_playback_switch,
727 	&snd_als4000_ctl_master_mono_capture_route,
728 	&snd_als4000_ctl_mono_playback_switch,
729 	&snd_als4000_ctl_mixer_loopback,
730 	&snd_als4000_3d_control_switch,
731 	&snd_als4000_3d_control_ratio,
732 	&snd_als4000_3d_control_freq,
733 	&snd_als4000_3d_control_delay,
734 	&snd_als4000_3d_control_poweroff_switch,
735 #ifdef NOT_AVAILABLE
736 	&snd_als4000_ctl_fmdac,
737 	&snd_als4000_ctl_qsound,
738 #endif
739 };
740 
741 static unsigned char snd_als4000_init_values[][2] = {
742 	{ SB_DSP4_MASTER_DEV + 0, 0 },
743 	{ SB_DSP4_MASTER_DEV + 1, 0 },
744 	{ SB_DSP4_PCM_DEV + 0, 0 },
745 	{ SB_DSP4_PCM_DEV + 1, 0 },
746 	{ SB_DSP4_SYNTH_DEV + 0, 0 },
747 	{ SB_DSP4_SYNTH_DEV + 1, 0 },
748 	{ SB_DSP4_SPEAKER_DEV, 0 },
749 	{ SB_DSP4_OUTPUT_SW, 0 },
750 	{ SB_DSP4_INPUT_LEFT, 0 },
751 	{ SB_DSP4_INPUT_RIGHT, 0 },
752 	{ SB_DT019X_OUTPUT_SW2, 0 },
753 	{ SB_ALS4000_MIC_IN_GAIN, 0 },
754 };
755 
756 
757 /*
758  */
759 static int snd_sbmixer_init(struct snd_sb *chip,
760 			    struct sbmix_elem **controls,
761 			    int controls_count,
762 			    unsigned char map[][2],
763 			    int map_count,
764 			    char *name)
765 {
766 	unsigned long flags;
767 	struct snd_card *card = chip->card;
768 	int idx, err;
769 
770 	/* mixer reset */
771 	spin_lock_irqsave(&chip->mixer_lock, flags);
772 	snd_sbmixer_write(chip, 0x00, 0x00);
773 	spin_unlock_irqrestore(&chip->mixer_lock, flags);
774 
775 	/* mute and zero volume channels */
776 	for (idx = 0; idx < map_count; idx++) {
777 		spin_lock_irqsave(&chip->mixer_lock, flags);
778 		snd_sbmixer_write(chip, map[idx][0], map[idx][1]);
779 		spin_unlock_irqrestore(&chip->mixer_lock, flags);
780 	}
781 
782 	for (idx = 0; idx < controls_count; idx++) {
783 		if ((err = snd_sbmixer_add_ctl_elem(chip, controls[idx])) < 0)
784 			return err;
785 	}
786 	snd_component_add(card, name);
787 	strcpy(card->mixername, name);
788 	return 0;
789 }
790 
791 int snd_sbmixer_new(struct snd_sb *chip)
792 {
793 	struct snd_card *card;
794 	int err;
795 
796 	snd_assert(chip != NULL && chip->card != NULL, return -EINVAL);
797 
798 	card = chip->card;
799 
800 	switch (chip->hardware) {
801 	case SB_HW_10:
802 		return 0; /* no mixer chip on SB1.x */
803 	case SB_HW_20:
804 	case SB_HW_201:
805 		if ((err = snd_sbmixer_init(chip,
806 					    snd_sb20_controls,
807 					    ARRAY_SIZE(snd_sb20_controls),
808 					    snd_sb20_init_values,
809 					    ARRAY_SIZE(snd_sb20_init_values),
810 					    "CTL1335")) < 0)
811 			return err;
812 		break;
813 	case SB_HW_PRO:
814 		if ((err = snd_sbmixer_init(chip,
815 					    snd_sbpro_controls,
816 					    ARRAY_SIZE(snd_sbpro_controls),
817 					    snd_sbpro_init_values,
818 					    ARRAY_SIZE(snd_sbpro_init_values),
819 					    "CTL1345")) < 0)
820 			return err;
821 		break;
822 	case SB_HW_16:
823 	case SB_HW_ALS100:
824 	case SB_HW_CS5530:
825 		if ((err = snd_sbmixer_init(chip,
826 					    snd_sb16_controls,
827 					    ARRAY_SIZE(snd_sb16_controls),
828 					    snd_sb16_init_values,
829 					    ARRAY_SIZE(snd_sb16_init_values),
830 					    "CTL1745")) < 0)
831 			return err;
832 		break;
833 	case SB_HW_ALS4000:
834 		if ((err = snd_sbmixer_init(chip,
835 					    snd_als4000_controls,
836 					    ARRAY_SIZE(snd_als4000_controls),
837 					    snd_als4000_init_values,
838 					    ARRAY_SIZE(snd_als4000_init_values),
839 					    "ALS4000")) < 0)
840 			return err;
841 		break;
842 	case SB_HW_DT019X:
843 		if ((err = snd_sbmixer_init(chip,
844 					    snd_dt019x_controls,
845 					    ARRAY_SIZE(snd_dt019x_controls),
846 					    snd_dt019x_init_values,
847 					    ARRAY_SIZE(snd_dt019x_init_values),
848 					    "DT019X")) < 0)
849 		break;
850 	default:
851 		strcpy(card->mixername, "???");
852 	}
853 	return 0;
854 }
855 
856 #ifdef CONFIG_PM
857 static unsigned char sb20_saved_regs[] = {
858 	SB_DSP20_MASTER_DEV,
859 	SB_DSP20_PCM_DEV,
860 	SB_DSP20_FM_DEV,
861 	SB_DSP20_CD_DEV,
862 };
863 
864 static unsigned char sbpro_saved_regs[] = {
865 	SB_DSP_MASTER_DEV,
866 	SB_DSP_PCM_DEV,
867 	SB_DSP_PLAYBACK_FILT,
868 	SB_DSP_FM_DEV,
869 	SB_DSP_CD_DEV,
870 	SB_DSP_LINE_DEV,
871 	SB_DSP_MIC_DEV,
872 	SB_DSP_CAPTURE_SOURCE,
873 	SB_DSP_CAPTURE_FILT,
874 };
875 
876 static unsigned char sb16_saved_regs[] = {
877 	SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,
878 	SB_DSP4_3DSE,
879 	SB_DSP4_BASS_DEV, SB_DSP4_BASS_DEV + 1,
880 	SB_DSP4_TREBLE_DEV, SB_DSP4_TREBLE_DEV + 1,
881 	SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,
882 	SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,
883 	SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,
884 	SB_DSP4_OUTPUT_SW,
885 	SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,
886 	SB_DSP4_LINE_DEV, SB_DSP4_LINE_DEV + 1,
887 	SB_DSP4_MIC_DEV,
888 	SB_DSP4_SPEAKER_DEV,
889 	SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,
890 	SB_DSP4_OGAIN_DEV, SB_DSP4_OGAIN_DEV + 1,
891 	SB_DSP4_MIC_AGC
892 };
893 
894 static unsigned char dt019x_saved_regs[] = {
895 	SB_DT019X_MASTER_DEV,
896 	SB_DT019X_PCM_DEV,
897 	SB_DT019X_SYNTH_DEV,
898 	SB_DT019X_CD_DEV,
899 	SB_DT019X_MIC_DEV,
900 	SB_DT019X_SPKR_DEV,
901 	SB_DT019X_LINE_DEV,
902 	SB_DSP4_OUTPUT_SW,
903 	SB_DT019X_OUTPUT_SW2,
904 	SB_DT019X_CAPTURE_SW,
905 };
906 
907 static unsigned char als4000_saved_regs[] = {
908 	SB_DSP4_MASTER_DEV, SB_DSP4_MASTER_DEV + 1,
909 	SB_DSP4_OUTPUT_SW,
910 	SB_DSP4_PCM_DEV, SB_DSP4_PCM_DEV + 1,
911 	SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT,
912 	SB_DSP4_SYNTH_DEV, SB_DSP4_SYNTH_DEV + 1,
913 	SB_DSP4_CD_DEV, SB_DSP4_CD_DEV + 1,
914 	SB_DSP4_MIC_AGC,
915 	SB_DSP4_MIC_DEV,
916 	SB_DSP4_SPEAKER_DEV,
917 	SB_DSP4_IGAIN_DEV, SB_DSP4_IGAIN_DEV + 1,
918 	SB_DSP4_OGAIN_DEV, SB_DSP4_OGAIN_DEV + 1,
919 	SB_DT019X_OUTPUT_SW2,
920 	SB_ALS4000_MONO_IO_CTRL,
921 	SB_ALS4000_MIC_IN_GAIN,
922 	SB_ALS4000_3D_SND_FX,
923 	SB_ALS4000_3D_TIME_DELAY,
924 };
925 
926 static void save_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
927 {
928 	unsigned char *val = chip->saved_regs;
929 	snd_assert(num_regs > ARRAY_SIZE(chip->saved_regs), return);
930 	for (; num_regs; num_regs--)
931 		*val++ = snd_sbmixer_read(chip, *regs++);
932 }
933 
934 static void restore_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
935 {
936 	unsigned char *val = chip->saved_regs;
937 	snd_assert(num_regs > ARRAY_SIZE(chip->saved_regs), return);
938 	for (; num_regs; num_regs--)
939 		snd_sbmixer_write(chip, *regs++, *val++);
940 }
941 
942 void snd_sbmixer_suspend(struct snd_sb *chip)
943 {
944 	switch (chip->hardware) {
945 	case SB_HW_20:
946 	case SB_HW_201:
947 		save_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));
948 		break;
949 	case SB_HW_PRO:
950 		save_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));
951 		break;
952 	case SB_HW_16:
953 	case SB_HW_ALS100:
954 	case SB_HW_CS5530:
955 		save_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));
956 		break;
957 	case SB_HW_ALS4000:
958 		save_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));
959 		break;
960 	case SB_HW_DT019X:
961 		save_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));
962 		break;
963 	default:
964 		break;
965 	}
966 }
967 
968 void snd_sbmixer_resume(struct snd_sb *chip)
969 {
970 	switch (chip->hardware) {
971 	case SB_HW_20:
972 	case SB_HW_201:
973 		restore_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));
974 		break;
975 	case SB_HW_PRO:
976 		restore_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));
977 		break;
978 	case SB_HW_16:
979 	case SB_HW_ALS100:
980 	case SB_HW_CS5530:
981 		restore_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));
982 		break;
983 	case SB_HW_ALS4000:
984 		restore_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));
985 		break;
986 	case SB_HW_DT019X:
987 		restore_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));
988 		break;
989 	default:
990 		break;
991 	}
992 }
993 #endif
994