xref: /openbmc/linux/sound/isa/sb/sb_mixer.c (revision 8569c914)
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 <asm/io.h>
23 #include <linux/delay.h>
24 #include <linux/time.h>
25 #include <sound/core.h>
26 #include <sound/sb.h>
27 #include <sound/control.h>
28 
29 #undef IO_DEBUG
30 
31 void snd_sbmixer_write(struct snd_sb *chip, unsigned char reg, unsigned char data)
32 {
33 	outb(reg, SBP(chip, MIXER_ADDR));
34 	udelay(10);
35 	outb(data, SBP(chip, MIXER_DATA));
36 	udelay(10);
37 #ifdef IO_DEBUG
38 	snd_printk(KERN_DEBUG "mixer_write 0x%x 0x%x\n", reg, data);
39 #endif
40 }
41 
42 unsigned char snd_sbmixer_read(struct snd_sb *chip, unsigned char reg)
43 {
44 	unsigned char result;
45 
46 	outb(reg, SBP(chip, MIXER_ADDR));
47 	udelay(10);
48 	result = inb(SBP(chip, MIXER_DATA));
49 	udelay(10);
50 #ifdef IO_DEBUG
51 	snd_printk(KERN_DEBUG "mixer_read 0x%x 0x%x\n", reg, result);
52 #endif
53 	return result;
54 }
55 
56 /*
57  * Single channel mixer element
58  */
59 
60 static int snd_sbmixer_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
61 {
62 	int mask = (kcontrol->private_value >> 24) & 0xff;
63 
64 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
65 	uinfo->count = 1;
66 	uinfo->value.integer.min = 0;
67 	uinfo->value.integer.max = mask;
68 	return 0;
69 }
70 
71 static int snd_sbmixer_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
72 {
73 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
74 	unsigned long flags;
75 	int reg = kcontrol->private_value & 0xff;
76 	int shift = (kcontrol->private_value >> 16) & 0xff;
77 	int mask = (kcontrol->private_value >> 24) & 0xff;
78 	unsigned char val;
79 
80 	spin_lock_irqsave(&sb->mixer_lock, flags);
81 	val = (snd_sbmixer_read(sb, reg) >> shift) & mask;
82 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
83 	ucontrol->value.integer.value[0] = val;
84 	return 0;
85 }
86 
87 static int snd_sbmixer_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
88 {
89 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
90 	unsigned long flags;
91 	int reg = kcontrol->private_value & 0xff;
92 	int shift = (kcontrol->private_value >> 16) & 0x07;
93 	int mask = (kcontrol->private_value >> 24) & 0xff;
94 	int change;
95 	unsigned char val, oval;
96 
97 	val = (ucontrol->value.integer.value[0] & mask) << shift;
98 	spin_lock_irqsave(&sb->mixer_lock, flags);
99 	oval = snd_sbmixer_read(sb, reg);
100 	val = (oval & ~(mask << shift)) | val;
101 	change = val != oval;
102 	if (change)
103 		snd_sbmixer_write(sb, reg, val);
104 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
105 	return change;
106 }
107 
108 /*
109  * Double channel mixer element
110  */
111 
112 static int snd_sbmixer_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
113 {
114 	int mask = (kcontrol->private_value >> 24) & 0xff;
115 
116 	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
117 	uinfo->count = 2;
118 	uinfo->value.integer.min = 0;
119 	uinfo->value.integer.max = mask;
120 	return 0;
121 }
122 
123 static int snd_sbmixer_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
124 {
125 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
126 	unsigned long flags;
127 	int left_reg = kcontrol->private_value & 0xff;
128 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
129 	int left_shift = (kcontrol->private_value >> 16) & 0x07;
130 	int right_shift = (kcontrol->private_value >> 19) & 0x07;
131 	int mask = (kcontrol->private_value >> 24) & 0xff;
132 	unsigned char left, right;
133 
134 	spin_lock_irqsave(&sb->mixer_lock, flags);
135 	left = (snd_sbmixer_read(sb, left_reg) >> left_shift) & mask;
136 	right = (snd_sbmixer_read(sb, right_reg) >> right_shift) & mask;
137 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
138 	ucontrol->value.integer.value[0] = left;
139 	ucontrol->value.integer.value[1] = right;
140 	return 0;
141 }
142 
143 static int snd_sbmixer_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
144 {
145 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
146 	unsigned long flags;
147 	int left_reg = kcontrol->private_value & 0xff;
148 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
149 	int left_shift = (kcontrol->private_value >> 16) & 0x07;
150 	int right_shift = (kcontrol->private_value >> 19) & 0x07;
151 	int mask = (kcontrol->private_value >> 24) & 0xff;
152 	int change;
153 	unsigned char left, right, oleft, oright;
154 
155 	left = (ucontrol->value.integer.value[0] & mask) << left_shift;
156 	right = (ucontrol->value.integer.value[1] & mask) << right_shift;
157 	spin_lock_irqsave(&sb->mixer_lock, flags);
158 	if (left_reg == right_reg) {
159 		oleft = snd_sbmixer_read(sb, left_reg);
160 		left = (oleft & ~((mask << left_shift) | (mask << right_shift))) | left | right;
161 		change = left != oleft;
162 		if (change)
163 			snd_sbmixer_write(sb, left_reg, left);
164 	} else {
165 		oleft = snd_sbmixer_read(sb, left_reg);
166 		oright = snd_sbmixer_read(sb, right_reg);
167 		left = (oleft & ~(mask << left_shift)) | left;
168 		right = (oright & ~(mask << right_shift)) | right;
169 		change = left != oleft || right != oright;
170 		if (change) {
171 			snd_sbmixer_write(sb, left_reg, left);
172 			snd_sbmixer_write(sb, right_reg, right);
173 		}
174 	}
175 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
176 	return change;
177 }
178 
179 /*
180  * DT-019x / ALS-007 capture/input switch
181  */
182 
183 static int snd_dt019x_input_sw_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
184 {
185 	static char *texts[5] = {
186 		"CD", "Mic", "Line", "Synth", "Master"
187 	};
188 
189 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
190 	uinfo->count = 1;
191 	uinfo->value.enumerated.items = 5;
192 	if (uinfo->value.enumerated.item > 4)
193 		uinfo->value.enumerated.item = 4;
194 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
195 	return 0;
196 }
197 
198 static int snd_dt019x_input_sw_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
199 {
200 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
201 	unsigned long flags;
202 	unsigned char oval;
203 
204 	spin_lock_irqsave(&sb->mixer_lock, flags);
205 	oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
206 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
207 	switch (oval & 0x07) {
208 	case SB_DT019X_CAP_CD:
209 		ucontrol->value.enumerated.item[0] = 0;
210 		break;
211 	case SB_DT019X_CAP_MIC:
212 		ucontrol->value.enumerated.item[0] = 1;
213 		break;
214 	case SB_DT019X_CAP_LINE:
215 		ucontrol->value.enumerated.item[0] = 2;
216 		break;
217 	case SB_DT019X_CAP_MAIN:
218 		ucontrol->value.enumerated.item[0] = 4;
219 		break;
220 	/* To record the synth on these cards you must record the main.   */
221 	/* Thus SB_DT019X_CAP_SYNTH == SB_DT019X_CAP_MAIN and would cause */
222 	/* duplicate case labels if left uncommented. */
223 	/* case SB_DT019X_CAP_SYNTH:
224 	 *	ucontrol->value.enumerated.item[0] = 3;
225 	 *	break;
226 	 */
227 	default:
228 		ucontrol->value.enumerated.item[0] = 4;
229 		break;
230 	}
231 	return 0;
232 }
233 
234 static int snd_dt019x_input_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
235 {
236 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
237 	unsigned long flags;
238 	int change;
239 	unsigned char nval, oval;
240 
241 	if (ucontrol->value.enumerated.item[0] > 4)
242 		return -EINVAL;
243 	switch (ucontrol->value.enumerated.item[0]) {
244 	case 0:
245 		nval = SB_DT019X_CAP_CD;
246 		break;
247 	case 1:
248 		nval = SB_DT019X_CAP_MIC;
249 		break;
250 	case 2:
251 		nval = SB_DT019X_CAP_LINE;
252 		break;
253 	case 3:
254 		nval = SB_DT019X_CAP_SYNTH;
255 		break;
256 	case 4:
257 		nval = SB_DT019X_CAP_MAIN;
258 		break;
259 	default:
260 		nval = SB_DT019X_CAP_MAIN;
261 	}
262 	spin_lock_irqsave(&sb->mixer_lock, flags);
263 	oval = snd_sbmixer_read(sb, SB_DT019X_CAPTURE_SW);
264 	change = nval != oval;
265 	if (change)
266 		snd_sbmixer_write(sb, SB_DT019X_CAPTURE_SW, nval);
267 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
268 	return change;
269 }
270 
271 /*
272  * SBPRO input multiplexer
273  */
274 
275 static int snd_sb8mixer_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
276 {
277 	static char *texts[3] = {
278 		"Mic", "CD", "Line"
279 	};
280 
281 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
282 	uinfo->count = 1;
283 	uinfo->value.enumerated.items = 3;
284 	if (uinfo->value.enumerated.item > 2)
285 		uinfo->value.enumerated.item = 2;
286 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
287 	return 0;
288 }
289 
290 
291 static int snd_sb8mixer_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
292 {
293 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
294 	unsigned long flags;
295 	unsigned char oval;
296 
297 	spin_lock_irqsave(&sb->mixer_lock, flags);
298 	oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
299 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
300 	switch ((oval >> 0x01) & 0x03) {
301 	case SB_DSP_MIXS_CD:
302 		ucontrol->value.enumerated.item[0] = 1;
303 		break;
304 	case SB_DSP_MIXS_LINE:
305 		ucontrol->value.enumerated.item[0] = 2;
306 		break;
307 	default:
308 		ucontrol->value.enumerated.item[0] = 0;
309 		break;
310 	}
311 	return 0;
312 }
313 
314 static int snd_sb8mixer_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
315 {
316 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
317 	unsigned long flags;
318 	int change;
319 	unsigned char nval, oval;
320 
321 	if (ucontrol->value.enumerated.item[0] > 2)
322 		return -EINVAL;
323 	switch (ucontrol->value.enumerated.item[0]) {
324 	case 1:
325 		nval = SB_DSP_MIXS_CD;
326 		break;
327 	case 2:
328 		nval = SB_DSP_MIXS_LINE;
329 		break;
330 	default:
331 		nval = SB_DSP_MIXS_MIC;
332 	}
333 	nval <<= 1;
334 	spin_lock_irqsave(&sb->mixer_lock, flags);
335 	oval = snd_sbmixer_read(sb, SB_DSP_CAPTURE_SOURCE);
336 	nval |= oval & ~0x06;
337 	change = nval != oval;
338 	if (change)
339 		snd_sbmixer_write(sb, SB_DSP_CAPTURE_SOURCE, nval);
340 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
341 	return change;
342 }
343 
344 /*
345  * SB16 input switch
346  */
347 
348 static int snd_sb16mixer_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
349 {
350 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
351 	uinfo->count = 4;
352 	uinfo->value.integer.min = 0;
353 	uinfo->value.integer.max = 1;
354 	return 0;
355 }
356 
357 static int snd_sb16mixer_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
358 {
359 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
360 	unsigned long flags;
361 	int reg1 = kcontrol->private_value & 0xff;
362 	int reg2 = (kcontrol->private_value >> 8) & 0xff;
363 	int left_shift = (kcontrol->private_value >> 16) & 0x0f;
364 	int right_shift = (kcontrol->private_value >> 24) & 0x0f;
365 	unsigned char val1, val2;
366 
367 	spin_lock_irqsave(&sb->mixer_lock, flags);
368 	val1 = snd_sbmixer_read(sb, reg1);
369 	val2 = snd_sbmixer_read(sb, reg2);
370 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
371 	ucontrol->value.integer.value[0] = (val1 >> left_shift) & 0x01;
372 	ucontrol->value.integer.value[1] = (val2 >> left_shift) & 0x01;
373 	ucontrol->value.integer.value[2] = (val1 >> right_shift) & 0x01;
374 	ucontrol->value.integer.value[3] = (val2 >> right_shift) & 0x01;
375 	return 0;
376 }
377 
378 static int snd_sb16mixer_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
379 {
380 	struct snd_sb *sb = snd_kcontrol_chip(kcontrol);
381 	unsigned long flags;
382 	int reg1 = kcontrol->private_value & 0xff;
383 	int reg2 = (kcontrol->private_value >> 8) & 0xff;
384 	int left_shift = (kcontrol->private_value >> 16) & 0x0f;
385 	int right_shift = (kcontrol->private_value >> 24) & 0x0f;
386 	int change;
387 	unsigned char val1, val2, oval1, oval2;
388 
389 	spin_lock_irqsave(&sb->mixer_lock, flags);
390 	oval1 = snd_sbmixer_read(sb, reg1);
391 	oval2 = snd_sbmixer_read(sb, reg2);
392 	val1 = oval1 & ~((1 << left_shift) | (1 << right_shift));
393 	val2 = oval2 & ~((1 << left_shift) | (1 << right_shift));
394 	val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
395 	val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
396 	val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
397 	val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
398 	change = val1 != oval1 || val2 != oval2;
399 	if (change) {
400 		snd_sbmixer_write(sb, reg1, val1);
401 		snd_sbmixer_write(sb, reg2, val2);
402 	}
403 	spin_unlock_irqrestore(&sb->mixer_lock, flags);
404 	return change;
405 }
406 
407 
408 /*
409  */
410 /*
411  */
412 int snd_sbmixer_add_ctl(struct snd_sb *chip, const char *name, int index, int type, unsigned long value)
413 {
414 	static struct snd_kcontrol_new newctls[] = {
415 		[SB_MIX_SINGLE] = {
416 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
417 			.info = snd_sbmixer_info_single,
418 			.get = snd_sbmixer_get_single,
419 			.put = snd_sbmixer_put_single,
420 		},
421 		[SB_MIX_DOUBLE] = {
422 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
423 			.info = snd_sbmixer_info_double,
424 			.get = snd_sbmixer_get_double,
425 			.put = snd_sbmixer_put_double,
426 		},
427 		[SB_MIX_INPUT_SW] = {
428 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
429 			.info = snd_sb16mixer_info_input_sw,
430 			.get = snd_sb16mixer_get_input_sw,
431 			.put = snd_sb16mixer_put_input_sw,
432 		},
433 		[SB_MIX_CAPTURE_PRO] = {
434 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
435 			.info = snd_sb8mixer_info_mux,
436 			.get = snd_sb8mixer_get_mux,
437 			.put = snd_sb8mixer_put_mux,
438 		},
439 		[SB_MIX_CAPTURE_DT019X] = {
440 			.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
441 			.info = snd_dt019x_input_sw_info,
442 			.get = snd_dt019x_input_sw_get,
443 			.put = snd_dt019x_input_sw_put,
444 		},
445 	};
446 	struct snd_kcontrol *ctl;
447 	int err;
448 
449 	ctl = snd_ctl_new1(&newctls[type], chip);
450 	if (! ctl)
451 		return -ENOMEM;
452 	strlcpy(ctl->id.name, name, sizeof(ctl->id.name));
453 	ctl->id.index = index;
454 	ctl->private_value = value;
455 	if ((err = snd_ctl_add(chip->card, ctl)) < 0)
456 		return err;
457 	return 0;
458 }
459 
460 /*
461  * SB 2.0 specific mixer elements
462  */
463 
464 static struct sbmix_elem snd_sb20_ctl_master_play_vol =
465 	SB_SINGLE("Master Playback Volume", SB_DSP20_MASTER_DEV, 1, 7);
466 static struct sbmix_elem snd_sb20_ctl_pcm_play_vol =
467 	SB_SINGLE("PCM Playback Volume", SB_DSP20_PCM_DEV, 1, 3);
468 static struct sbmix_elem snd_sb20_ctl_synth_play_vol =
469 	SB_SINGLE("Synth Playback Volume", SB_DSP20_FM_DEV, 1, 7);
470 static struct sbmix_elem snd_sb20_ctl_cd_play_vol =
471 	SB_SINGLE("CD Playback Volume", SB_DSP20_CD_DEV, 1, 7);
472 
473 static struct sbmix_elem *snd_sb20_controls[] = {
474 	&snd_sb20_ctl_master_play_vol,
475 	&snd_sb20_ctl_pcm_play_vol,
476 	&snd_sb20_ctl_synth_play_vol,
477 	&snd_sb20_ctl_cd_play_vol
478 };
479 
480 static unsigned char snd_sb20_init_values[][2] = {
481 	{ SB_DSP20_MASTER_DEV, 0 },
482 	{ SB_DSP20_FM_DEV, 0 },
483 };
484 
485 /*
486  * SB Pro specific mixer elements
487  */
488 static struct sbmix_elem snd_sbpro_ctl_master_play_vol =
489 	SB_DOUBLE("Master Playback Volume", SB_DSP_MASTER_DEV, SB_DSP_MASTER_DEV, 5, 1, 7);
490 static struct sbmix_elem snd_sbpro_ctl_pcm_play_vol =
491 	SB_DOUBLE("PCM Playback Volume", SB_DSP_PCM_DEV, SB_DSP_PCM_DEV, 5, 1, 7);
492 static struct sbmix_elem snd_sbpro_ctl_pcm_play_filter =
493 	SB_SINGLE("PCM Playback Filter", SB_DSP_PLAYBACK_FILT, 5, 1);
494 static struct sbmix_elem snd_sbpro_ctl_synth_play_vol =
495 	SB_DOUBLE("Synth Playback Volume", SB_DSP_FM_DEV, SB_DSP_FM_DEV, 5, 1, 7);
496 static struct sbmix_elem snd_sbpro_ctl_cd_play_vol =
497 	SB_DOUBLE("CD Playback Volume", SB_DSP_CD_DEV, SB_DSP_CD_DEV, 5, 1, 7);
498 static struct sbmix_elem snd_sbpro_ctl_line_play_vol =
499 	SB_DOUBLE("Line Playback Volume", SB_DSP_LINE_DEV, SB_DSP_LINE_DEV, 5, 1, 7);
500 static struct sbmix_elem snd_sbpro_ctl_mic_play_vol =
501 	SB_SINGLE("Mic Playback Volume", SB_DSP_MIC_DEV, 1, 3);
502 static struct sbmix_elem snd_sbpro_ctl_capture_source =
503 	{
504 		.name = "Capture Source",
505 		.type = SB_MIX_CAPTURE_PRO
506 	};
507 static struct sbmix_elem snd_sbpro_ctl_capture_filter =
508 	SB_SINGLE("Capture Filter", SB_DSP_CAPTURE_FILT, 5, 1);
509 static struct sbmix_elem snd_sbpro_ctl_capture_low_filter =
510 	SB_SINGLE("Capture Low-Pass Filter", SB_DSP_CAPTURE_FILT, 3, 1);
511 
512 static struct sbmix_elem *snd_sbpro_controls[] = {
513 	&snd_sbpro_ctl_master_play_vol,
514 	&snd_sbpro_ctl_pcm_play_vol,
515 	&snd_sbpro_ctl_pcm_play_filter,
516 	&snd_sbpro_ctl_synth_play_vol,
517 	&snd_sbpro_ctl_cd_play_vol,
518 	&snd_sbpro_ctl_line_play_vol,
519 	&snd_sbpro_ctl_mic_play_vol,
520 	&snd_sbpro_ctl_capture_source,
521 	&snd_sbpro_ctl_capture_filter,
522 	&snd_sbpro_ctl_capture_low_filter
523 };
524 
525 static unsigned char snd_sbpro_init_values[][2] = {
526 	{ SB_DSP_MASTER_DEV, 0 },
527 	{ SB_DSP_PCM_DEV, 0 },
528 	{ SB_DSP_FM_DEV, 0 },
529 };
530 
531 /*
532  * SB16 specific mixer elements
533  */
534 static struct sbmix_elem snd_sb16_ctl_master_play_vol =
535 	SB_DOUBLE("Master Playback Volume", SB_DSP4_MASTER_DEV, (SB_DSP4_MASTER_DEV + 1), 3, 3, 31);
536 static struct sbmix_elem snd_sb16_ctl_3d_enhance_switch =
537 	SB_SINGLE("3D Enhancement Switch", SB_DSP4_3DSE, 0, 1);
538 static struct sbmix_elem snd_sb16_ctl_tone_bass =
539 	SB_DOUBLE("Tone Control - Bass", SB_DSP4_BASS_DEV, (SB_DSP4_BASS_DEV + 1), 4, 4, 15);
540 static struct sbmix_elem snd_sb16_ctl_tone_treble =
541 	SB_DOUBLE("Tone Control - Treble", SB_DSP4_TREBLE_DEV, (SB_DSP4_TREBLE_DEV + 1), 4, 4, 15);
542 static struct sbmix_elem snd_sb16_ctl_pcm_play_vol =
543 	SB_DOUBLE("PCM Playback Volume", SB_DSP4_PCM_DEV, (SB_DSP4_PCM_DEV + 1), 3, 3, 31);
544 static struct sbmix_elem snd_sb16_ctl_synth_capture_route =
545 	SB16_INPUT_SW("Synth Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 6, 5);
546 static struct sbmix_elem snd_sb16_ctl_synth_play_vol =
547 	SB_DOUBLE("Synth Playback Volume", SB_DSP4_SYNTH_DEV, (SB_DSP4_SYNTH_DEV + 1), 3, 3, 31);
548 static struct sbmix_elem snd_sb16_ctl_cd_capture_route =
549 	SB16_INPUT_SW("CD Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 2, 1);
550 static struct sbmix_elem snd_sb16_ctl_cd_play_switch =
551 	SB_DOUBLE("CD Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 2, 1, 1);
552 static struct sbmix_elem snd_sb16_ctl_cd_play_vol =
553 	SB_DOUBLE("CD Playback Volume", SB_DSP4_CD_DEV, (SB_DSP4_CD_DEV + 1), 3, 3, 31);
554 static struct sbmix_elem snd_sb16_ctl_line_capture_route =
555 	SB16_INPUT_SW("Line Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 4, 3);
556 static struct sbmix_elem snd_sb16_ctl_line_play_switch =
557 	SB_DOUBLE("Line Playback Switch", SB_DSP4_OUTPUT_SW, SB_DSP4_OUTPUT_SW, 4, 3, 1);
558 static struct sbmix_elem snd_sb16_ctl_line_play_vol =
559 	SB_DOUBLE("Line Playback Volume", SB_DSP4_LINE_DEV, (SB_DSP4_LINE_DEV + 1), 3, 3, 31);
560 static struct sbmix_elem snd_sb16_ctl_mic_capture_route =
561 	SB16_INPUT_SW("Mic Capture Route", SB_DSP4_INPUT_LEFT, SB_DSP4_INPUT_RIGHT, 0, 0);
562 static struct sbmix_elem snd_sb16_ctl_mic_play_switch =
563 	SB_SINGLE("Mic Playback Switch", SB_DSP4_OUTPUT_SW, 0, 1);
564 static struct sbmix_elem snd_sb16_ctl_mic_play_vol =
565 	SB_SINGLE("Mic Playback Volume", SB_DSP4_MIC_DEV, 3, 31);
566 static struct sbmix_elem snd_sb16_ctl_pc_speaker_vol =
567 	SB_SINGLE("PC Speaker Volume", SB_DSP4_SPEAKER_DEV, 6, 3);
568 static struct sbmix_elem snd_sb16_ctl_capture_vol =
569 	SB_DOUBLE("Capture Volume", SB_DSP4_IGAIN_DEV, (SB_DSP4_IGAIN_DEV + 1), 6, 6, 3);
570 static struct sbmix_elem snd_sb16_ctl_play_vol =
571 	SB_DOUBLE("Playback Volume", SB_DSP4_OGAIN_DEV, (SB_DSP4_OGAIN_DEV + 1), 6, 6, 3);
572 static struct sbmix_elem snd_sb16_ctl_auto_mic_gain =
573 	SB_SINGLE("Mic Auto Gain", SB_DSP4_MIC_AGC, 0, 1);
574 
575 static struct sbmix_elem *snd_sb16_controls[] = {
576 	&snd_sb16_ctl_master_play_vol,
577 	&snd_sb16_ctl_3d_enhance_switch,
578 	&snd_sb16_ctl_tone_bass,
579 	&snd_sb16_ctl_tone_treble,
580 	&snd_sb16_ctl_pcm_play_vol,
581 	&snd_sb16_ctl_synth_capture_route,
582 	&snd_sb16_ctl_synth_play_vol,
583 	&snd_sb16_ctl_cd_capture_route,
584 	&snd_sb16_ctl_cd_play_switch,
585 	&snd_sb16_ctl_cd_play_vol,
586 	&snd_sb16_ctl_line_capture_route,
587 	&snd_sb16_ctl_line_play_switch,
588 	&snd_sb16_ctl_line_play_vol,
589 	&snd_sb16_ctl_mic_capture_route,
590 	&snd_sb16_ctl_mic_play_switch,
591 	&snd_sb16_ctl_mic_play_vol,
592 	&snd_sb16_ctl_pc_speaker_vol,
593 	&snd_sb16_ctl_capture_vol,
594 	&snd_sb16_ctl_play_vol,
595 	&snd_sb16_ctl_auto_mic_gain
596 };
597 
598 static unsigned char snd_sb16_init_values[][2] = {
599 	{ SB_DSP4_MASTER_DEV + 0, 0 },
600 	{ SB_DSP4_MASTER_DEV + 1, 0 },
601 	{ SB_DSP4_PCM_DEV + 0, 0 },
602 	{ SB_DSP4_PCM_DEV + 1, 0 },
603 	{ SB_DSP4_SYNTH_DEV + 0, 0 },
604 	{ SB_DSP4_SYNTH_DEV + 1, 0 },
605 	{ SB_DSP4_INPUT_LEFT, 0 },
606 	{ SB_DSP4_INPUT_RIGHT, 0 },
607 	{ SB_DSP4_OUTPUT_SW, 0 },
608 	{ SB_DSP4_SPEAKER_DEV, 0 },
609 };
610 
611 /*
612  * DT019x specific mixer elements
613  */
614 static struct sbmix_elem snd_dt019x_ctl_master_play_vol =
615 	SB_DOUBLE("Master Playback Volume", SB_DT019X_MASTER_DEV, SB_DT019X_MASTER_DEV, 4,0, 15);
616 static struct sbmix_elem snd_dt019x_ctl_pcm_play_vol =
617 	SB_DOUBLE("PCM Playback Volume", SB_DT019X_PCM_DEV, SB_DT019X_PCM_DEV, 4,0, 15);
618 static struct sbmix_elem snd_dt019x_ctl_synth_play_vol =
619 	SB_DOUBLE("Synth Playback Volume", SB_DT019X_SYNTH_DEV, SB_DT019X_SYNTH_DEV, 4,0, 15);
620 static struct sbmix_elem snd_dt019x_ctl_cd_play_vol =
621 	SB_DOUBLE("CD Playback Volume", SB_DT019X_CD_DEV, SB_DT019X_CD_DEV, 4,0, 15);
622 static struct sbmix_elem snd_dt019x_ctl_mic_play_vol =
623 	SB_SINGLE("Mic Playback Volume", SB_DT019X_MIC_DEV, 4, 7);
624 static struct sbmix_elem snd_dt019x_ctl_pc_speaker_vol =
625 	SB_SINGLE("PC Speaker Volume", SB_DT019X_SPKR_DEV, 0,  7);
626 static struct sbmix_elem snd_dt019x_ctl_line_play_vol =
627 	SB_DOUBLE("Line Playback Volume", SB_DT019X_LINE_DEV, SB_DT019X_LINE_DEV, 4,0, 15);
628 static struct sbmix_elem snd_dt019x_ctl_pcm_play_switch =
629 	SB_DOUBLE("PCM Playback Switch", SB_DT019X_OUTPUT_SW2, SB_DT019X_OUTPUT_SW2, 2,1, 1);
630 static struct sbmix_elem snd_dt019x_ctl_synth_play_switch =
631 	SB_DOUBLE("Synth Playback Switch", SB_DT019X_OUTPUT_SW2, SB_DT019X_OUTPUT_SW2, 4,3, 1);
632 static struct sbmix_elem snd_dt019x_ctl_capture_source =
633 	{
634 		.name = "Capture Source",
635 		.type = SB_MIX_CAPTURE_DT019X
636 	};
637 
638 static struct sbmix_elem *snd_dt019x_controls[] = {
639 	&snd_dt019x_ctl_master_play_vol,
640 	&snd_dt019x_ctl_pcm_play_vol,
641 	&snd_dt019x_ctl_synth_play_vol,
642 	&snd_dt019x_ctl_cd_play_vol,
643 	&snd_dt019x_ctl_mic_play_vol,
644 	&snd_dt019x_ctl_pc_speaker_vol,
645 	&snd_dt019x_ctl_line_play_vol,
646 	&snd_sb16_ctl_mic_play_switch,
647 	&snd_sb16_ctl_cd_play_switch,
648 	&snd_sb16_ctl_line_play_switch,
649 	&snd_dt019x_ctl_pcm_play_switch,
650 	&snd_dt019x_ctl_synth_play_switch,
651 	&snd_dt019x_ctl_capture_source
652 };
653 
654 static unsigned char snd_dt019x_init_values[][2] = {
655         { SB_DT019X_MASTER_DEV, 0 },
656         { SB_DT019X_PCM_DEV, 0 },
657         { SB_DT019X_SYNTH_DEV, 0 },
658         { SB_DT019X_CD_DEV, 0 },
659         { SB_DT019X_MIC_DEV, 0 },	/* Includes PC-speaker in high nibble */
660         { SB_DT019X_LINE_DEV, 0 },
661         { SB_DSP4_OUTPUT_SW, 0 },
662         { SB_DT019X_OUTPUT_SW2, 0 },
663         { SB_DT019X_CAPTURE_SW, 0x06 },
664 };
665 
666 /*
667  * ALS4000 specific mixer elements
668  */
669 /* FIXME: SB_ALS4000_MONO_IO_CTRL needs output select ctrl! */
670 static struct sbmix_elem snd_als4000_ctl_master_mono_playback_switch =
671 	SB_SINGLE("Master Mono Playback Switch", SB_ALS4000_MONO_IO_CTRL, 5, 1);
672 static struct sbmix_elem snd_als4000_ctl_master_mono_capture_route =
673 	SB_SINGLE("Master Mono Capture Route", SB_ALS4000_MONO_IO_CTRL, 6, 0x03);
674 /* FIXME: mono playback switch also available on DT019X? */
675 static struct sbmix_elem snd_als4000_ctl_mono_playback_switch =
676 	SB_SINGLE("Mono Playback Switch", SB_DT019X_OUTPUT_SW2, 0, 1);
677 static struct sbmix_elem snd_als4000_ctl_mic_20db_boost =
678 	SB_SINGLE("Mic Boost (+20dB)", SB_ALS4000_MIC_IN_GAIN, 0, 0x03);
679 static struct sbmix_elem snd_als4000_ctl_mixer_loopback =
680 	SB_SINGLE("Analog Loopback", SB_ALS4000_MIC_IN_GAIN, 7, 0x01);
681 /* FIXME: functionality of 3D controls might be swapped, I didn't find
682  * a description of how to identify what is supposed to be what */
683 static struct sbmix_elem snd_als4000_3d_control_switch =
684 	SB_SINGLE("3D Control - Switch", SB_ALS4000_3D_SND_FX, 6, 0x01);
685 static struct sbmix_elem snd_als4000_3d_control_ratio =
686 	SB_SINGLE("3D Control - Level", SB_ALS4000_3D_SND_FX, 0, 0x07);
687 static struct sbmix_elem snd_als4000_3d_control_freq =
688 	/* FIXME: maybe there's actually some standard 3D ctrl name for it?? */
689 	SB_SINGLE("3D Control - Freq", SB_ALS4000_3D_SND_FX, 4, 0x03);
690 static struct sbmix_elem snd_als4000_3d_control_delay =
691 	/* FIXME: ALS4000a.pdf mentions BBD (Bucket Brigade Device) time delay,
692 	 * but what ALSA 3D attribute is that actually? "Center", "Depth",
693 	 * "Wide" or "Space" or even "Level"? Assuming "Wide" for now... */
694 	SB_SINGLE("3D Control - Wide", SB_ALS4000_3D_TIME_DELAY, 0, 0x0f);
695 static struct sbmix_elem snd_als4000_3d_control_poweroff_switch =
696 	SB_SINGLE("3D PowerOff Switch", SB_ALS4000_3D_TIME_DELAY, 4, 0x01);
697 #ifdef NOT_AVAILABLE
698 static struct sbmix_elem snd_als4000_ctl_fmdac =
699 	SB_SINGLE("FMDAC Switch (Option ?)", SB_ALS4000_FMDAC, 0, 0x01);
700 static struct sbmix_elem snd_als4000_ctl_qsound =
701 	SB_SINGLE("QSound Mode", SB_ALS4000_QSOUND, 1, 0x1f);
702 #endif
703 
704 static struct sbmix_elem *snd_als4000_controls[] = {
705 	&snd_sb16_ctl_master_play_vol,
706 	&snd_dt019x_ctl_pcm_play_switch,
707 	&snd_sb16_ctl_pcm_play_vol,
708 	&snd_sb16_ctl_synth_capture_route,
709 	&snd_dt019x_ctl_synth_play_switch,
710 	&snd_sb16_ctl_synth_play_vol,
711 	&snd_sb16_ctl_cd_capture_route,
712 	&snd_sb16_ctl_cd_play_switch,
713 	&snd_sb16_ctl_cd_play_vol,
714 	&snd_sb16_ctl_line_capture_route,
715 	&snd_sb16_ctl_line_play_switch,
716 	&snd_sb16_ctl_line_play_vol,
717 	&snd_sb16_ctl_mic_capture_route,
718 	&snd_als4000_ctl_mic_20db_boost,
719 	&snd_sb16_ctl_auto_mic_gain,
720 	&snd_sb16_ctl_mic_play_switch,
721 	&snd_sb16_ctl_mic_play_vol,
722 	&snd_sb16_ctl_pc_speaker_vol,
723 	&snd_sb16_ctl_capture_vol,
724 	&snd_sb16_ctl_play_vol,
725 	&snd_als4000_ctl_master_mono_playback_switch,
726 	&snd_als4000_ctl_master_mono_capture_route,
727 	&snd_als4000_ctl_mono_playback_switch,
728 	&snd_als4000_ctl_mixer_loopback,
729 	&snd_als4000_3d_control_switch,
730 	&snd_als4000_3d_control_ratio,
731 	&snd_als4000_3d_control_freq,
732 	&snd_als4000_3d_control_delay,
733 	&snd_als4000_3d_control_poweroff_switch,
734 #ifdef NOT_AVAILABLE
735 	&snd_als4000_ctl_fmdac,
736 	&snd_als4000_ctl_qsound,
737 #endif
738 };
739 
740 static unsigned char snd_als4000_init_values[][2] = {
741 	{ SB_DSP4_MASTER_DEV + 0, 0 },
742 	{ SB_DSP4_MASTER_DEV + 1, 0 },
743 	{ SB_DSP4_PCM_DEV + 0, 0 },
744 	{ SB_DSP4_PCM_DEV + 1, 0 },
745 	{ SB_DSP4_SYNTH_DEV + 0, 0 },
746 	{ SB_DSP4_SYNTH_DEV + 1, 0 },
747 	{ SB_DSP4_SPEAKER_DEV, 0 },
748 	{ SB_DSP4_OUTPUT_SW, 0 },
749 	{ SB_DSP4_INPUT_LEFT, 0 },
750 	{ SB_DSP4_INPUT_RIGHT, 0 },
751 	{ SB_DT019X_OUTPUT_SW2, 0 },
752 	{ SB_ALS4000_MIC_IN_GAIN, 0 },
753 };
754 
755 
756 /*
757  */
758 static int snd_sbmixer_init(struct snd_sb *chip,
759 			    struct sbmix_elem **controls,
760 			    int controls_count,
761 			    unsigned char map[][2],
762 			    int map_count,
763 			    char *name)
764 {
765 	unsigned long flags;
766 	struct snd_card *card = chip->card;
767 	int idx, err;
768 
769 	/* mixer reset */
770 	spin_lock_irqsave(&chip->mixer_lock, flags);
771 	snd_sbmixer_write(chip, 0x00, 0x00);
772 	spin_unlock_irqrestore(&chip->mixer_lock, flags);
773 
774 	/* mute and zero volume channels */
775 	for (idx = 0; idx < map_count; idx++) {
776 		spin_lock_irqsave(&chip->mixer_lock, flags);
777 		snd_sbmixer_write(chip, map[idx][0], map[idx][1]);
778 		spin_unlock_irqrestore(&chip->mixer_lock, flags);
779 	}
780 
781 	for (idx = 0; idx < controls_count; idx++) {
782 		if ((err = snd_sbmixer_add_ctl_elem(chip, controls[idx])) < 0)
783 			return err;
784 	}
785 	snd_component_add(card, name);
786 	strcpy(card->mixername, name);
787 	return 0;
788 }
789 
790 int snd_sbmixer_new(struct snd_sb *chip)
791 {
792 	struct snd_card *card;
793 	int err;
794 
795 	if (snd_BUG_ON(!chip || !chip->card))
796 		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 	if (snd_BUG_ON(num_regs > ARRAY_SIZE(chip->saved_regs)))
930 		return;
931 	for (; num_regs; num_regs--)
932 		*val++ = snd_sbmixer_read(chip, *regs++);
933 }
934 
935 static void restore_mixer(struct snd_sb *chip, unsigned char *regs, int num_regs)
936 {
937 	unsigned char *val = chip->saved_regs;
938 	if (snd_BUG_ON(num_regs > ARRAY_SIZE(chip->saved_regs)))
939 		return;
940 	for (; num_regs; num_regs--)
941 		snd_sbmixer_write(chip, *regs++, *val++);
942 }
943 
944 void snd_sbmixer_suspend(struct snd_sb *chip)
945 {
946 	switch (chip->hardware) {
947 	case SB_HW_20:
948 	case SB_HW_201:
949 		save_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));
950 		break;
951 	case SB_HW_PRO:
952 		save_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));
953 		break;
954 	case SB_HW_16:
955 	case SB_HW_ALS100:
956 	case SB_HW_CS5530:
957 		save_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));
958 		break;
959 	case SB_HW_ALS4000:
960 		save_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));
961 		break;
962 	case SB_HW_DT019X:
963 		save_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));
964 		break;
965 	default:
966 		break;
967 	}
968 }
969 
970 void snd_sbmixer_resume(struct snd_sb *chip)
971 {
972 	switch (chip->hardware) {
973 	case SB_HW_20:
974 	case SB_HW_201:
975 		restore_mixer(chip, sb20_saved_regs, ARRAY_SIZE(sb20_saved_regs));
976 		break;
977 	case SB_HW_PRO:
978 		restore_mixer(chip, sbpro_saved_regs, ARRAY_SIZE(sbpro_saved_regs));
979 		break;
980 	case SB_HW_16:
981 	case SB_HW_ALS100:
982 	case SB_HW_CS5530:
983 		restore_mixer(chip, sb16_saved_regs, ARRAY_SIZE(sb16_saved_regs));
984 		break;
985 	case SB_HW_ALS4000:
986 		restore_mixer(chip, als4000_saved_regs, ARRAY_SIZE(als4000_saved_regs));
987 		break;
988 	case SB_HW_DT019X:
989 		restore_mixer(chip, dt019x_saved_regs, ARRAY_SIZE(dt019x_saved_regs));
990 		break;
991 	default:
992 		break;
993 	}
994 }
995 #endif
996