xref: /openbmc/linux/sound/ppc/awacs.c (revision a09d2831)
1 /*
2  * PMac AWACS lowlevel functions
3  *
4  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
5  * code based on dmasound.c.
6  *
7  *   This program is free software; you can redistribute it and/or modify
8  *   it under the terms of the GNU General Public License as published by
9  *   the Free Software Foundation; either version 2 of the License, or
10  *   (at your option) any later version.
11  *
12  *   This program is distributed in the hope that it will be useful,
13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *   GNU General Public License for more details.
16  *
17  *   You should have received a copy of the GNU General Public License
18  *   along with this program; if not, write to the Free Software
19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
20  */
21 
22 
23 #include <asm/io.h>
24 #include <asm/nvram.h>
25 #include <linux/init.h>
26 #include <linux/delay.h>
27 #include <linux/slab.h>
28 #include <sound/core.h>
29 #include "pmac.h"
30 
31 
32 #ifdef CONFIG_ADB_CUDA
33 #define PMAC_AMP_AVAIL
34 #endif
35 
36 #ifdef PMAC_AMP_AVAIL
37 struct awacs_amp {
38 	unsigned char amp_master;
39 	unsigned char amp_vol[2][2];
40 	unsigned char amp_tone[2];
41 };
42 
43 #define CHECK_CUDA_AMP() (sys_ctrler == SYS_CTRLER_CUDA)
44 
45 #endif /* PMAC_AMP_AVAIL */
46 
47 
48 static void snd_pmac_screamer_wait(struct snd_pmac *chip)
49 {
50 	long timeout = 2000;
51 	while (!(in_le32(&chip->awacs->codec_stat) & MASK_VALID)) {
52 		mdelay(1);
53 		if (! --timeout) {
54 			snd_printd("snd_pmac_screamer_wait timeout\n");
55 			break;
56 		}
57 	}
58 }
59 
60 /*
61  * write AWACS register
62  */
63 static void
64 snd_pmac_awacs_write(struct snd_pmac *chip, int val)
65 {
66 	long timeout = 5000000;
67 
68 	if (chip->model == PMAC_SCREAMER)
69 		snd_pmac_screamer_wait(chip);
70 	out_le32(&chip->awacs->codec_ctrl, val | (chip->subframe << 22));
71 	while (in_le32(&chip->awacs->codec_ctrl) & MASK_NEWECMD) {
72 		if (! --timeout) {
73 			snd_printd("snd_pmac_awacs_write timeout\n");
74 			break;
75 		}
76 	}
77 }
78 
79 static void
80 snd_pmac_awacs_write_reg(struct snd_pmac *chip, int reg, int val)
81 {
82 	snd_pmac_awacs_write(chip, val | (reg << 12));
83 	chip->awacs_reg[reg] = val;
84 }
85 
86 static void
87 snd_pmac_awacs_write_noreg(struct snd_pmac *chip, int reg, int val)
88 {
89 	snd_pmac_awacs_write(chip, val | (reg << 12));
90 }
91 
92 #ifdef CONFIG_PM
93 /* Recalibrate chip */
94 static void screamer_recalibrate(struct snd_pmac *chip)
95 {
96 	if (chip->model != PMAC_SCREAMER)
97 		return;
98 
99 	/* Sorry for the horrible delays... I hope to get that improved
100 	 * by making the whole PM process asynchronous in a future version
101 	 */
102 	snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
103 	if (chip->manufacturer == 0x1)
104 		/* delay for broken crystal part */
105 		msleep(750);
106 	snd_pmac_awacs_write_noreg(chip, 1,
107 				   chip->awacs_reg[1] | MASK_RECALIBRATE |
108 				   MASK_CMUTE | MASK_AMUTE);
109 	snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
110 	snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
111 }
112 
113 #else
114 #define screamer_recalibrate(chip) /* NOP */
115 #endif
116 
117 
118 /*
119  * additional callback to set the pcm format
120  */
121 static void snd_pmac_awacs_set_format(struct snd_pmac *chip)
122 {
123 	chip->awacs_reg[1] &= ~MASK_SAMPLERATE;
124 	chip->awacs_reg[1] |= chip->rate_index << 3;
125 	snd_pmac_awacs_write_reg(chip, 1, chip->awacs_reg[1]);
126 }
127 
128 
129 /*
130  * AWACS volume callbacks
131  */
132 /*
133  * volumes: 0-15 stereo
134  */
135 static int snd_pmac_awacs_info_volume(struct snd_kcontrol *kcontrol,
136 				      struct snd_ctl_elem_info *uinfo)
137 {
138 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
139 	uinfo->count = 2;
140 	uinfo->value.integer.min = 0;
141 	uinfo->value.integer.max = 15;
142 	return 0;
143 }
144 
145 static int snd_pmac_awacs_get_volume(struct snd_kcontrol *kcontrol,
146 				     struct snd_ctl_elem_value *ucontrol)
147 {
148 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
149 	int reg = kcontrol->private_value & 0xff;
150 	int lshift = (kcontrol->private_value >> 8) & 0xff;
151 	int inverted = (kcontrol->private_value >> 16) & 1;
152 	unsigned long flags;
153 	int vol[2];
154 
155 	spin_lock_irqsave(&chip->reg_lock, flags);
156 	vol[0] = (chip->awacs_reg[reg] >> lshift) & 0xf;
157 	vol[1] = chip->awacs_reg[reg] & 0xf;
158 	spin_unlock_irqrestore(&chip->reg_lock, flags);
159 	if (inverted) {
160 		vol[0] = 0x0f - vol[0];
161 		vol[1] = 0x0f - vol[1];
162 	}
163 	ucontrol->value.integer.value[0] = vol[0];
164 	ucontrol->value.integer.value[1] = vol[1];
165 	return 0;
166 }
167 
168 static int snd_pmac_awacs_put_volume(struct snd_kcontrol *kcontrol,
169 				     struct snd_ctl_elem_value *ucontrol)
170 {
171 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
172 	int reg = kcontrol->private_value & 0xff;
173 	int lshift = (kcontrol->private_value >> 8) & 0xff;
174 	int inverted = (kcontrol->private_value >> 16) & 1;
175 	int val, oldval;
176 	unsigned long flags;
177 	unsigned int vol[2];
178 
179 	vol[0] = ucontrol->value.integer.value[0];
180 	vol[1] = ucontrol->value.integer.value[1];
181 	if (vol[0] > 0x0f || vol[1] > 0x0f)
182 		return -EINVAL;
183 	if (inverted) {
184 		vol[0] = 0x0f - vol[0];
185 		vol[1] = 0x0f - vol[1];
186 	}
187 	vol[0] &= 0x0f;
188 	vol[1] &= 0x0f;
189 	spin_lock_irqsave(&chip->reg_lock, flags);
190 	oldval = chip->awacs_reg[reg];
191 	val = oldval & ~(0xf | (0xf << lshift));
192 	val |= vol[0] << lshift;
193 	val |= vol[1];
194 	if (oldval != val)
195 		snd_pmac_awacs_write_reg(chip, reg, val);
196 	spin_unlock_irqrestore(&chip->reg_lock, flags);
197 	return oldval != reg;
198 }
199 
200 
201 #define AWACS_VOLUME(xname, xreg, xshift, xinverted) \
202 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
203   .info = snd_pmac_awacs_info_volume, \
204   .get = snd_pmac_awacs_get_volume, \
205   .put = snd_pmac_awacs_put_volume, \
206   .private_value = (xreg) | ((xshift) << 8) | ((xinverted) << 16) }
207 
208 /*
209  * mute master/ogain for AWACS: mono
210  */
211 static int snd_pmac_awacs_get_switch(struct snd_kcontrol *kcontrol,
212 				     struct snd_ctl_elem_value *ucontrol)
213 {
214 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
215 	int reg = kcontrol->private_value & 0xff;
216 	int shift = (kcontrol->private_value >> 8) & 0xff;
217 	int invert = (kcontrol->private_value >> 16) & 1;
218 	int val;
219 	unsigned long flags;
220 
221 	spin_lock_irqsave(&chip->reg_lock, flags);
222 	val = (chip->awacs_reg[reg] >> shift) & 1;
223 	spin_unlock_irqrestore(&chip->reg_lock, flags);
224 	if (invert)
225 		val = 1 - val;
226 	ucontrol->value.integer.value[0] = val;
227 	return 0;
228 }
229 
230 static int snd_pmac_awacs_put_switch(struct snd_kcontrol *kcontrol,
231 				     struct snd_ctl_elem_value *ucontrol)
232 {
233 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
234 	int reg = kcontrol->private_value & 0xff;
235 	int shift = (kcontrol->private_value >> 8) & 0xff;
236 	int invert = (kcontrol->private_value >> 16) & 1;
237 	int mask = 1 << shift;
238 	int val, changed;
239 	unsigned long flags;
240 
241 	spin_lock_irqsave(&chip->reg_lock, flags);
242 	val = chip->awacs_reg[reg] & ~mask;
243 	if (ucontrol->value.integer.value[0] != invert)
244 		val |= mask;
245 	changed = chip->awacs_reg[reg] != val;
246 	if (changed)
247 		snd_pmac_awacs_write_reg(chip, reg, val);
248 	spin_unlock_irqrestore(&chip->reg_lock, flags);
249 	return changed;
250 }
251 
252 #define AWACS_SWITCH(xname, xreg, xshift, xinvert) \
253 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
254   .info = snd_pmac_boolean_mono_info, \
255   .get = snd_pmac_awacs_get_switch, \
256   .put = snd_pmac_awacs_put_switch, \
257   .private_value = (xreg) | ((xshift) << 8) | ((xinvert) << 16) }
258 
259 
260 #ifdef PMAC_AMP_AVAIL
261 /*
262  * controls for perch/whisper extension cards, e.g. G3 desktop
263  *
264  * TDA7433 connected via i2c address 0x45 (= 0x8a),
265  * accessed through cuda
266  */
267 static void awacs_set_cuda(int reg, int val)
268 {
269 	struct adb_request req;
270 	cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, 0x8a,
271 			reg, val);
272 	while (! req.complete)
273 		cuda_poll();
274 }
275 
276 /*
277  * level = 0 - 14, 7 = 0 dB
278  */
279 static void awacs_amp_set_tone(struct awacs_amp *amp, int bass, int treble)
280 {
281 	amp->amp_tone[0] = bass;
282 	amp->amp_tone[1] = treble;
283 	if (bass > 7)
284 		bass = (14 - bass) + 8;
285 	if (treble > 7)
286 		treble = (14 - treble) + 8;
287 	awacs_set_cuda(2, (bass << 4) | treble);
288 }
289 
290 /*
291  * vol = 0 - 31 (attenuation), 32 = mute bit, stereo
292  */
293 static int awacs_amp_set_vol(struct awacs_amp *amp, int index,
294 			     int lvol, int rvol, int do_check)
295 {
296 	if (do_check && amp->amp_vol[index][0] == lvol &&
297 			amp->amp_vol[index][1] == rvol)
298 		return 0;
299 	awacs_set_cuda(3 + index, lvol);
300 	awacs_set_cuda(5 + index, rvol);
301 	amp->amp_vol[index][0] = lvol;
302 	amp->amp_vol[index][1] = rvol;
303 	return 1;
304 }
305 
306 /*
307  * 0 = -79 dB, 79 = 0 dB, 99 = +20 dB
308  */
309 static void awacs_amp_set_master(struct awacs_amp *amp, int vol)
310 {
311 	amp->amp_master = vol;
312 	if (vol <= 79)
313 		vol = 32 + (79 - vol);
314 	else
315 		vol = 32 - (vol - 79);
316 	awacs_set_cuda(1, vol);
317 }
318 
319 static void awacs_amp_free(struct snd_pmac *chip)
320 {
321 	struct awacs_amp *amp = chip->mixer_data;
322 	if (!amp)
323 		return;
324 	kfree(amp);
325 	chip->mixer_data = NULL;
326 	chip->mixer_free = NULL;
327 }
328 
329 
330 /*
331  * mixer controls
332  */
333 static int snd_pmac_awacs_info_volume_amp(struct snd_kcontrol *kcontrol,
334 					  struct snd_ctl_elem_info *uinfo)
335 {
336 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
337 	uinfo->count = 2;
338 	uinfo->value.integer.min = 0;
339 	uinfo->value.integer.max = 31;
340 	return 0;
341 }
342 
343 static int snd_pmac_awacs_get_volume_amp(struct snd_kcontrol *kcontrol,
344 					 struct snd_ctl_elem_value *ucontrol)
345 {
346 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
347 	int index = kcontrol->private_value;
348 	struct awacs_amp *amp = chip->mixer_data;
349 
350 	ucontrol->value.integer.value[0] = 31 - (amp->amp_vol[index][0] & 31);
351 	ucontrol->value.integer.value[1] = 31 - (amp->amp_vol[index][1] & 31);
352 	return 0;
353 }
354 
355 static int snd_pmac_awacs_put_volume_amp(struct snd_kcontrol *kcontrol,
356 					 struct snd_ctl_elem_value *ucontrol)
357 {
358 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
359 	int index = kcontrol->private_value;
360 	int vol[2];
361 	struct awacs_amp *amp = chip->mixer_data;
362 
363 	vol[0] = (31 - (ucontrol->value.integer.value[0] & 31))
364 		| (amp->amp_vol[index][0] & 32);
365 	vol[1] = (31 - (ucontrol->value.integer.value[1] & 31))
366 		| (amp->amp_vol[index][1] & 32);
367 	return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
368 }
369 
370 static int snd_pmac_awacs_get_switch_amp(struct snd_kcontrol *kcontrol,
371 					 struct snd_ctl_elem_value *ucontrol)
372 {
373 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
374 	int index = kcontrol->private_value;
375 	struct awacs_amp *amp = chip->mixer_data;
376 
377 	ucontrol->value.integer.value[0] = (amp->amp_vol[index][0] & 32)
378 					? 0 : 1;
379 	ucontrol->value.integer.value[1] = (amp->amp_vol[index][1] & 32)
380 					? 0 : 1;
381 	return 0;
382 }
383 
384 static int snd_pmac_awacs_put_switch_amp(struct snd_kcontrol *kcontrol,
385 					 struct snd_ctl_elem_value *ucontrol)
386 {
387 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
388 	int index = kcontrol->private_value;
389 	int vol[2];
390 	struct awacs_amp *amp = chip->mixer_data;
391 
392 	vol[0] = (ucontrol->value.integer.value[0] ? 0 : 32)
393 		| (amp->amp_vol[index][0] & 31);
394 	vol[1] = (ucontrol->value.integer.value[1] ? 0 : 32)
395 		| (amp->amp_vol[index][1] & 31);
396 	return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
397 }
398 
399 static int snd_pmac_awacs_info_tone_amp(struct snd_kcontrol *kcontrol,
400 					struct snd_ctl_elem_info *uinfo)
401 {
402 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
403 	uinfo->count = 1;
404 	uinfo->value.integer.min = 0;
405 	uinfo->value.integer.max = 14;
406 	return 0;
407 }
408 
409 static int snd_pmac_awacs_get_tone_amp(struct snd_kcontrol *kcontrol,
410 				       struct snd_ctl_elem_value *ucontrol)
411 {
412 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
413 	int index = kcontrol->private_value;
414 	struct awacs_amp *amp = chip->mixer_data;
415 
416 	ucontrol->value.integer.value[0] = amp->amp_tone[index];
417 	return 0;
418 }
419 
420 static int snd_pmac_awacs_put_tone_amp(struct snd_kcontrol *kcontrol,
421 				       struct snd_ctl_elem_value *ucontrol)
422 {
423 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
424 	int index = kcontrol->private_value;
425 	struct awacs_amp *amp = chip->mixer_data;
426 	unsigned int val;
427 
428 	val = ucontrol->value.integer.value[0];
429 	if (val > 14)
430 		return -EINVAL;
431 	if (val != amp->amp_tone[index]) {
432 		amp->amp_tone[index] = val;
433 		awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]);
434 		return 1;
435 	}
436 	return 0;
437 }
438 
439 static int snd_pmac_awacs_info_master_amp(struct snd_kcontrol *kcontrol,
440 					  struct snd_ctl_elem_info *uinfo)
441 {
442 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
443 	uinfo->count = 1;
444 	uinfo->value.integer.min = 0;
445 	uinfo->value.integer.max = 99;
446 	return 0;
447 }
448 
449 static int snd_pmac_awacs_get_master_amp(struct snd_kcontrol *kcontrol,
450 					 struct snd_ctl_elem_value *ucontrol)
451 {
452 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
453 	struct awacs_amp *amp = chip->mixer_data;
454 
455 	ucontrol->value.integer.value[0] = amp->amp_master;
456 	return 0;
457 }
458 
459 static int snd_pmac_awacs_put_master_amp(struct snd_kcontrol *kcontrol,
460 					 struct snd_ctl_elem_value *ucontrol)
461 {
462 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
463 	struct awacs_amp *amp = chip->mixer_data;
464 	unsigned int val;
465 
466 	val = ucontrol->value.integer.value[0];
467 	if (val > 99)
468 		return -EINVAL;
469 	if (val != amp->amp_master) {
470 		amp->amp_master = val;
471 		awacs_amp_set_master(amp, amp->amp_master);
472 		return 1;
473 	}
474 	return 0;
475 }
476 
477 #define AMP_CH_SPK	0
478 #define AMP_CH_HD	1
479 
480 static struct snd_kcontrol_new snd_pmac_awacs_amp_vol[] __devinitdata = {
481 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
482 	  .name = "Speaker Playback Volume",
483 	  .info = snd_pmac_awacs_info_volume_amp,
484 	  .get = snd_pmac_awacs_get_volume_amp,
485 	  .put = snd_pmac_awacs_put_volume_amp,
486 	  .private_value = AMP_CH_SPK,
487 	},
488 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
489 	  .name = "Headphone Playback Volume",
490 	  .info = snd_pmac_awacs_info_volume_amp,
491 	  .get = snd_pmac_awacs_get_volume_amp,
492 	  .put = snd_pmac_awacs_put_volume_amp,
493 	  .private_value = AMP_CH_HD,
494 	},
495 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
496 	  .name = "Tone Control - Bass",
497 	  .info = snd_pmac_awacs_info_tone_amp,
498 	  .get = snd_pmac_awacs_get_tone_amp,
499 	  .put = snd_pmac_awacs_put_tone_amp,
500 	  .private_value = 0,
501 	},
502 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
503 	  .name = "Tone Control - Treble",
504 	  .info = snd_pmac_awacs_info_tone_amp,
505 	  .get = snd_pmac_awacs_get_tone_amp,
506 	  .put = snd_pmac_awacs_put_tone_amp,
507 	  .private_value = 1,
508 	},
509 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
510 	  .name = "Amp Master Playback Volume",
511 	  .info = snd_pmac_awacs_info_master_amp,
512 	  .get = snd_pmac_awacs_get_master_amp,
513 	  .put = snd_pmac_awacs_put_master_amp,
514 	},
515 };
516 
517 static struct snd_kcontrol_new snd_pmac_awacs_amp_hp_sw __devinitdata = {
518 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
519 	.name = "Headphone Playback Switch",
520 	.info = snd_pmac_boolean_stereo_info,
521 	.get = snd_pmac_awacs_get_switch_amp,
522 	.put = snd_pmac_awacs_put_switch_amp,
523 	.private_value = AMP_CH_HD,
524 };
525 
526 static struct snd_kcontrol_new snd_pmac_awacs_amp_spk_sw __devinitdata = {
527 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
528 	.name = "Speaker Playback Switch",
529 	.info = snd_pmac_boolean_stereo_info,
530 	.get = snd_pmac_awacs_get_switch_amp,
531 	.put = snd_pmac_awacs_put_switch_amp,
532 	.private_value = AMP_CH_SPK,
533 };
534 
535 #endif /* PMAC_AMP_AVAIL */
536 
537 
538 /*
539  * mic boost for screamer
540  */
541 static int snd_pmac_screamer_mic_boost_info(struct snd_kcontrol *kcontrol,
542 					    struct snd_ctl_elem_info *uinfo)
543 {
544 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
545 	uinfo->count = 1;
546 	uinfo->value.integer.min = 0;
547 	uinfo->value.integer.max = 3;
548 	return 0;
549 }
550 
551 static int snd_pmac_screamer_mic_boost_get(struct snd_kcontrol *kcontrol,
552 					   struct snd_ctl_elem_value *ucontrol)
553 {
554 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
555 	int val = 0;
556 	unsigned long flags;
557 
558 	spin_lock_irqsave(&chip->reg_lock, flags);
559 	if (chip->awacs_reg[6] & MASK_MIC_BOOST)
560 		val |= 2;
561 	if (chip->awacs_reg[0] & MASK_GAINLINE)
562 		val |= 1;
563 	spin_unlock_irqrestore(&chip->reg_lock, flags);
564 	ucontrol->value.integer.value[0] = val;
565 	return 0;
566 }
567 
568 static int snd_pmac_screamer_mic_boost_put(struct snd_kcontrol *kcontrol,
569 					   struct snd_ctl_elem_value *ucontrol)
570 {
571 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
572 	int changed = 0;
573 	int val0, val6;
574 	unsigned long flags;
575 
576 	spin_lock_irqsave(&chip->reg_lock, flags);
577 	val0 = chip->awacs_reg[0] & ~MASK_GAINLINE;
578 	val6 = chip->awacs_reg[6] & ~MASK_MIC_BOOST;
579 	if (ucontrol->value.integer.value[0] & 1)
580 		val0 |= MASK_GAINLINE;
581 	if (ucontrol->value.integer.value[0] & 2)
582 		val6 |= MASK_MIC_BOOST;
583 	if (val0 != chip->awacs_reg[0]) {
584 		snd_pmac_awacs_write_reg(chip, 0, val0);
585 		changed = 1;
586 	}
587 	if (val6 != chip->awacs_reg[6]) {
588 		snd_pmac_awacs_write_reg(chip, 6, val6);
589 		changed = 1;
590 	}
591 	spin_unlock_irqrestore(&chip->reg_lock, flags);
592 	return changed;
593 }
594 
595 /*
596  * lists of mixer elements
597  */
598 static struct snd_kcontrol_new snd_pmac_awacs_mixers[] __devinitdata = {
599 	AWACS_SWITCH("Master Capture Switch", 1, SHIFT_LOOPTHRU, 0),
600 	AWACS_VOLUME("Master Capture Volume", 0, 4, 0),
601 /*	AWACS_SWITCH("Unknown Playback Switch", 6, SHIFT_PAROUT0, 0), */
602 };
603 
604 static struct snd_kcontrol_new snd_pmac_screamer_mixers_beige[] __devinitdata = {
605 	AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
606 	AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1),
607 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
608 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_LINE, 0),
609 };
610 
611 static struct snd_kcontrol_new snd_pmac_screamer_mixers_lo[] __devinitdata = {
612 	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
613 };
614 
615 static struct snd_kcontrol_new snd_pmac_screamer_mixers_imac[] __devinitdata = {
616 	AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1),
617 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
618 };
619 
620 static struct snd_kcontrol_new snd_pmac_screamer_mixers_g4agp[] __devinitdata = {
621 	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
622 	AWACS_VOLUME("Master Playback Volume", 5, 6, 1),
623 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
624 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
625 };
626 
627 static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac7500[] __devinitdata = {
628 	AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
629 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
630 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
631 };
632 
633 static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac5500[] __devinitdata = {
634 	AWACS_VOLUME("Headphone Playback Volume", 2, 6, 1),
635 };
636 
637 static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac[] __devinitdata = {
638 	AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
639 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
640 };
641 
642 /* FIXME: is this correct order?
643  * screamer (powerbook G3 pismo) seems to have different bits...
644  */
645 static struct snd_kcontrol_new snd_pmac_awacs_mixers2[] __devinitdata = {
646 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_LINE, 0),
647 	AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_MIC, 0),
648 };
649 
650 static struct snd_kcontrol_new snd_pmac_screamer_mixers2[] __devinitdata = {
651 	AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
652 	AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_LINE, 0),
653 };
654 
655 static struct snd_kcontrol_new snd_pmac_awacs_mixers2_pmac5500[] __devinitdata = {
656 	AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
657 };
658 
659 static struct snd_kcontrol_new snd_pmac_awacs_master_sw __devinitdata =
660 AWACS_SWITCH("Master Playback Switch", 1, SHIFT_HDMUTE, 1);
661 
662 static struct snd_kcontrol_new snd_pmac_awacs_master_sw_imac __devinitdata =
663 AWACS_SWITCH("Line out Playback Switch", 1, SHIFT_HDMUTE, 1);
664 
665 static struct snd_kcontrol_new snd_pmac_awacs_master_sw_pmac5500 __devinitdata =
666 AWACS_SWITCH("Headphone Playback Switch", 1, SHIFT_HDMUTE, 1);
667 
668 static struct snd_kcontrol_new snd_pmac_awacs_mic_boost[] __devinitdata = {
669 	AWACS_SWITCH("Mic Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
670 };
671 
672 static struct snd_kcontrol_new snd_pmac_screamer_mic_boost[] __devinitdata = {
673 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
674 	  .name = "Mic Boost Capture Volume",
675 	  .info = snd_pmac_screamer_mic_boost_info,
676 	  .get = snd_pmac_screamer_mic_boost_get,
677 	  .put = snd_pmac_screamer_mic_boost_put,
678 	},
679 };
680 
681 static struct snd_kcontrol_new snd_pmac_awacs_mic_boost_pmac7500[] __devinitdata =
682 {
683 	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
684 };
685 
686 static struct snd_kcontrol_new snd_pmac_screamer_mic_boost_beige[] __devinitdata =
687 {
688 	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
689 	AWACS_SWITCH("CD Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0),
690 };
691 
692 static struct snd_kcontrol_new snd_pmac_screamer_mic_boost_imac[] __devinitdata =
693 {
694 	AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
695 	AWACS_SWITCH("Mic Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0),
696 };
697 
698 static struct snd_kcontrol_new snd_pmac_awacs_speaker_vol[] __devinitdata = {
699 	AWACS_VOLUME("Speaker Playback Volume", 4, 6, 1),
700 };
701 
702 static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw __devinitdata =
703 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_SPKMUTE, 1);
704 
705 static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac1 __devinitdata =
706 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 1);
707 
708 static struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac2 __devinitdata =
709 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 0);
710 
711 
712 /*
713  * add new mixer elements to the card
714  */
715 static int build_mixers(struct snd_pmac *chip, int nums,
716 			struct snd_kcontrol_new *mixers)
717 {
718 	int i, err;
719 
720 	for (i = 0; i < nums; i++) {
721 		err = snd_ctl_add(chip->card, snd_ctl_new1(&mixers[i], chip));
722 		if (err < 0)
723 			return err;
724 	}
725 	return 0;
726 }
727 
728 
729 /*
730  * restore all registers
731  */
732 static void awacs_restore_all_regs(struct snd_pmac *chip)
733 {
734 	snd_pmac_awacs_write_noreg(chip, 0, chip->awacs_reg[0]);
735 	snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
736 	snd_pmac_awacs_write_noreg(chip, 2, chip->awacs_reg[2]);
737 	snd_pmac_awacs_write_noreg(chip, 4, chip->awacs_reg[4]);
738 	if (chip->model == PMAC_SCREAMER) {
739 		snd_pmac_awacs_write_noreg(chip, 5, chip->awacs_reg[5]);
740 		snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
741 		snd_pmac_awacs_write_noreg(chip, 7, chip->awacs_reg[7]);
742 	}
743 }
744 
745 #ifdef CONFIG_PM
746 static void snd_pmac_awacs_suspend(struct snd_pmac *chip)
747 {
748 	snd_pmac_awacs_write_noreg(chip, 1, (chip->awacs_reg[1]
749 					     | MASK_AMUTE | MASK_CMUTE));
750 }
751 
752 static void snd_pmac_awacs_resume(struct snd_pmac *chip)
753 {
754 	if (machine_is_compatible("PowerBook3,1")
755 	    || machine_is_compatible("PowerBook3,2")) {
756 		msleep(100);
757 		snd_pmac_awacs_write_reg(chip, 1,
758 			chip->awacs_reg[1] & ~MASK_PAROUT);
759 		msleep(300);
760 	}
761 
762 	awacs_restore_all_regs(chip);
763 	if (chip->model == PMAC_SCREAMER) {
764 		/* reset power bits in reg 6 */
765 		mdelay(5);
766 		snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
767 	}
768 	screamer_recalibrate(chip);
769 #ifdef PMAC_AMP_AVAIL
770 	if (chip->mixer_data) {
771 		struct awacs_amp *amp = chip->mixer_data;
772 		awacs_amp_set_vol(amp, 0,
773 				  amp->amp_vol[0][0], amp->amp_vol[0][1], 0);
774 		awacs_amp_set_vol(amp, 1,
775 				  amp->amp_vol[1][0], amp->amp_vol[1][1], 0);
776 		awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]);
777 		awacs_amp_set_master(amp, amp->amp_master);
778 	}
779 #endif
780 }
781 #endif /* CONFIG_PM */
782 
783 #define IS_PM7500 (machine_is_compatible("AAPL,7500") \
784 		|| machine_is_compatible("AAPL,8500") \
785 		|| machine_is_compatible("AAPL,9500"))
786 #define IS_PM5500 (machine_is_compatible("AAPL,e411"))
787 #define IS_BEIGE (machine_is_compatible("AAPL,Gossamer"))
788 #define IS_IMAC1 (machine_is_compatible("PowerMac2,1"))
789 #define IS_IMAC2 (machine_is_compatible("PowerMac2,2") \
790 		|| machine_is_compatible("PowerMac4,1"))
791 #define IS_G4AGP (machine_is_compatible("PowerMac3,1"))
792 #define IS_LOMBARD (machine_is_compatible("PowerBook1,1"))
793 
794 static int imac1, imac2;
795 
796 #ifdef PMAC_SUPPORT_AUTOMUTE
797 /*
798  * auto-mute stuffs
799  */
800 static int snd_pmac_awacs_detect_headphone(struct snd_pmac *chip)
801 {
802 	return (in_le32(&chip->awacs->codec_stat) & chip->hp_stat_mask) ? 1 : 0;
803 }
804 
805 #ifdef PMAC_AMP_AVAIL
806 static int toggle_amp_mute(struct awacs_amp *amp, int index, int mute)
807 {
808 	int vol[2];
809 	vol[0] = amp->amp_vol[index][0] & 31;
810 	vol[1] = amp->amp_vol[index][1] & 31;
811 	if (mute) {
812 		vol[0] |= 32;
813 		vol[1] |= 32;
814 	}
815 	return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
816 }
817 #endif
818 
819 static void snd_pmac_awacs_update_automute(struct snd_pmac *chip, int do_notify)
820 {
821 	if (chip->auto_mute) {
822 #ifdef PMAC_AMP_AVAIL
823 		if (chip->mixer_data) {
824 			struct awacs_amp *amp = chip->mixer_data;
825 			int changed;
826 			if (snd_pmac_awacs_detect_headphone(chip)) {
827 				changed = toggle_amp_mute(amp, AMP_CH_HD, 0);
828 				changed |= toggle_amp_mute(amp, AMP_CH_SPK, 1);
829 			} else {
830 				changed = toggle_amp_mute(amp, AMP_CH_HD, 1);
831 				changed |= toggle_amp_mute(amp, AMP_CH_SPK, 0);
832 			}
833 			if (do_notify && ! changed)
834 				return;
835 		} else
836 #endif
837 		{
838 			int reg = chip->awacs_reg[1]
839 				| (MASK_HDMUTE | MASK_SPKMUTE);
840 			if (imac1) {
841 				reg &= ~MASK_SPKMUTE;
842 				reg |= MASK_PAROUT1;
843 			} else if (imac2) {
844 				reg &= ~MASK_SPKMUTE;
845 				reg &= ~MASK_PAROUT1;
846 			}
847 			if (snd_pmac_awacs_detect_headphone(chip))
848 				reg &= ~MASK_HDMUTE;
849 			else if (imac1)
850 				reg &= ~MASK_PAROUT1;
851 			else if (imac2)
852 				reg |= MASK_PAROUT1;
853 			else
854 				reg &= ~MASK_SPKMUTE;
855 			if (do_notify && reg == chip->awacs_reg[1])
856 				return;
857 			snd_pmac_awacs_write_reg(chip, 1, reg);
858 		}
859 		if (do_notify) {
860 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
861 				       &chip->master_sw_ctl->id);
862 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
863 				       &chip->speaker_sw_ctl->id);
864 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
865 				       &chip->hp_detect_ctl->id);
866 		}
867 	}
868 }
869 #endif /* PMAC_SUPPORT_AUTOMUTE */
870 
871 
872 /*
873  * initialize chip
874  */
875 int __devinit
876 snd_pmac_awacs_init(struct snd_pmac *chip)
877 {
878 	int pm7500 = IS_PM7500;
879 	int pm5500 = IS_PM5500;
880 	int beige = IS_BEIGE;
881 	int g4agp = IS_G4AGP;
882 	int lombard = IS_LOMBARD;
883 	int imac;
884 	int err, vol;
885 	struct snd_kcontrol *vmaster_sw, *vmaster_vol;
886 	struct snd_kcontrol *master_vol, *speaker_vol;
887 
888 	imac1 = IS_IMAC1;
889 	imac2 = IS_IMAC2;
890 	imac = imac1 || imac2;
891 	/* looks like MASK_GAINLINE triggers something, so we set here
892 	 * as start-up
893 	 */
894 	chip->awacs_reg[0] = MASK_MUX_CD | 0xff | MASK_GAINLINE;
895 	chip->awacs_reg[1] = MASK_CMUTE | MASK_AMUTE;
896 	/* FIXME: Only machines with external SRS module need MASK_PAROUT */
897 	if (chip->has_iic || chip->device_id == 0x5 ||
898 	    /* chip->_device_id == 0x8 || */
899 	    chip->device_id == 0xb)
900 		chip->awacs_reg[1] |= MASK_PAROUT;
901 	/* get default volume from nvram */
902 	// vol = (~nvram_read_byte(0x1308) & 7) << 1;
903 	// vol = ((pmac_xpram_read( 8 ) & 7 ) << 1 );
904 	vol = 0x0f; /* no, on alsa, muted as default */
905 	vol = vol + (vol << 6);
906 	chip->awacs_reg[2] = vol;
907 	chip->awacs_reg[4] = vol;
908 	if (chip->model == PMAC_SCREAMER) {
909 		/* FIXME: screamer has loopthru vol control */
910 		chip->awacs_reg[5] = vol;
911 		/* FIXME: maybe should be vol << 3 for PCMCIA speaker */
912 		chip->awacs_reg[6] = MASK_MIC_BOOST;
913 		chip->awacs_reg[7] = 0;
914 	}
915 
916 	awacs_restore_all_regs(chip);
917 	chip->manufacturer = (in_le32(&chip->awacs->codec_stat) >> 8) & 0xf;
918 	screamer_recalibrate(chip);
919 
920 	chip->revision = (in_le32(&chip->awacs->codec_stat) >> 12) & 0xf;
921 #ifdef PMAC_AMP_AVAIL
922 	if (chip->revision == 3 && chip->has_iic && CHECK_CUDA_AMP()) {
923 		struct awacs_amp *amp = kzalloc(sizeof(*amp), GFP_KERNEL);
924 		if (! amp)
925 			return -ENOMEM;
926 		chip->mixer_data = amp;
927 		chip->mixer_free = awacs_amp_free;
928 		/* mute and zero vol */
929 		awacs_amp_set_vol(amp, 0, 63, 63, 0);
930 		awacs_amp_set_vol(amp, 1, 63, 63, 0);
931 		awacs_amp_set_tone(amp, 7, 7); /* 0 dB */
932 		awacs_amp_set_master(amp, 79); /* 0 dB */
933 	}
934 #endif /* PMAC_AMP_AVAIL */
935 
936 	if (chip->hp_stat_mask == 0) {
937 		/* set headphone-jack detection bit */
938 		switch (chip->model) {
939 		case PMAC_AWACS:
940 			chip->hp_stat_mask = pm7500 || pm5500 ? MASK_HDPCONN
941 				: MASK_LOCONN;
942 			break;
943 		case PMAC_SCREAMER:
944 			switch (chip->device_id) {
945 			case 0x08:
946 			case 0x0B:
947 				chip->hp_stat_mask = imac
948 					? MASK_LOCONN_IMAC |
949 					MASK_HDPLCONN_IMAC |
950 					MASK_HDPRCONN_IMAC
951 					: MASK_HDPCONN;
952 				break;
953 			case 0x00:
954 			case 0x05:
955 				chip->hp_stat_mask = MASK_LOCONN;
956 				break;
957 			default:
958 				chip->hp_stat_mask = MASK_HDPCONN;
959 				break;
960 			}
961 			break;
962 		default:
963 			snd_BUG();
964 			break;
965 		}
966 	}
967 
968 	/*
969 	 * build mixers
970 	 */
971 	strcpy(chip->card->mixername, "PowerMac AWACS");
972 
973 	err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers),
974 				snd_pmac_awacs_mixers);
975 	if (err < 0)
976 		return err;
977 	if (beige || g4agp)
978 		;
979 	else if (chip->model == PMAC_SCREAMER || pm5500)
980 		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_screamer_mixers2),
981 				   snd_pmac_screamer_mixers2);
982 	else if (!pm7500)
983 		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers2),
984 				   snd_pmac_awacs_mixers2);
985 	if (err < 0)
986 		return err;
987 	if (pm5500) {
988 		err = build_mixers(chip,
989 				   ARRAY_SIZE(snd_pmac_awacs_mixers2_pmac5500),
990 				   snd_pmac_awacs_mixers2_pmac5500);
991 		if (err < 0)
992 			return err;
993 	}
994 	if (pm7500)
995 		err = build_mixers(chip,
996 				   ARRAY_SIZE(snd_pmac_awacs_mixers_pmac7500),
997 				   snd_pmac_awacs_mixers_pmac7500);
998 	else if (pm5500)
999 		err = snd_ctl_add(chip->card,
1000 		    (master_vol = snd_ctl_new1(snd_pmac_awacs_mixers_pmac5500,
1001 						chip)));
1002 	else if (beige)
1003 		err = build_mixers(chip,
1004 				   ARRAY_SIZE(snd_pmac_screamer_mixers_beige),
1005 				   snd_pmac_screamer_mixers_beige);
1006 	else if (imac || lombard) {
1007 		err = snd_ctl_add(chip->card,
1008 		    (master_vol = snd_ctl_new1(snd_pmac_screamer_mixers_lo,
1009 						chip)));
1010 		if (err < 0)
1011 			return err;
1012 		err = build_mixers(chip,
1013 				   ARRAY_SIZE(snd_pmac_screamer_mixers_imac),
1014 				   snd_pmac_screamer_mixers_imac);
1015 	} else if (g4agp)
1016 		err = build_mixers(chip,
1017 				   ARRAY_SIZE(snd_pmac_screamer_mixers_g4agp),
1018 				   snd_pmac_screamer_mixers_g4agp);
1019 	else
1020 		err = build_mixers(chip,
1021 				   ARRAY_SIZE(snd_pmac_awacs_mixers_pmac),
1022 				   snd_pmac_awacs_mixers_pmac);
1023 	if (err < 0)
1024 		return err;
1025 	chip->master_sw_ctl = snd_ctl_new1((pm7500 || imac || g4agp || lombard)
1026 			? &snd_pmac_awacs_master_sw_imac
1027 			: pm5500
1028 			? &snd_pmac_awacs_master_sw_pmac5500
1029 			: &snd_pmac_awacs_master_sw, chip);
1030 	err = snd_ctl_add(chip->card, chip->master_sw_ctl);
1031 	if (err < 0)
1032 		return err;
1033 #ifdef PMAC_AMP_AVAIL
1034 	if (chip->mixer_data) {
1035 		/* use amplifier.  the signal is connected from route A
1036 		 * to the amp.  the amp has its headphone and speaker
1037 		 * volumes and mute switches, so we use them instead of
1038 		 * screamer registers.
1039 		 * in this case, it seems the route C is not used.
1040 		 */
1041 		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_amp_vol),
1042 					snd_pmac_awacs_amp_vol);
1043 		if (err < 0)
1044 			return err;
1045 		/* overwrite */
1046 		chip->master_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_hp_sw,
1047 							chip);
1048 		err = snd_ctl_add(chip->card, chip->master_sw_ctl);
1049 		if (err < 0)
1050 			return err;
1051 		chip->speaker_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_spk_sw,
1052 							chip);
1053 		err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
1054 		if (err < 0)
1055 			return err;
1056 	} else
1057 #endif /* PMAC_AMP_AVAIL */
1058 	{
1059 		/* route A = headphone, route C = speaker */
1060 		err = snd_ctl_add(chip->card,
1061 		    (speaker_vol = snd_ctl_new1(snd_pmac_awacs_speaker_vol,
1062 						chip)));
1063 		if (err < 0)
1064 			return err;
1065 		chip->speaker_sw_ctl = snd_ctl_new1(imac1
1066 				? &snd_pmac_awacs_speaker_sw_imac1
1067 				: imac2
1068 				? &snd_pmac_awacs_speaker_sw_imac2
1069 				: &snd_pmac_awacs_speaker_sw, chip);
1070 		err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
1071 		if (err < 0)
1072 			return err;
1073 	}
1074 
1075 	if (pm5500 || imac || lombard) {
1076 		vmaster_sw = snd_ctl_make_virtual_master(
1077 			"Master Playback Switch", (unsigned int *) NULL);
1078 		err = snd_ctl_add_slave_uncached(vmaster_sw,
1079 						 chip->master_sw_ctl);
1080 		if (err < 0)
1081 			return err;
1082 		err = snd_ctl_add_slave_uncached(vmaster_sw,
1083 						  chip->speaker_sw_ctl);
1084 		if (err < 0)
1085 			return err;
1086 		err = snd_ctl_add(chip->card, vmaster_sw);
1087 		if (err < 0)
1088 			return err;
1089 		vmaster_vol = snd_ctl_make_virtual_master(
1090 			"Master Playback Volume", (unsigned int *) NULL);
1091 		err = snd_ctl_add_slave(vmaster_vol, master_vol);
1092 		if (err < 0)
1093 			return err;
1094 		err = snd_ctl_add_slave(vmaster_vol, speaker_vol);
1095 		if (err < 0)
1096 			return err;
1097 		err = snd_ctl_add(chip->card, vmaster_vol);
1098 		if (err < 0)
1099 			return err;
1100 	}
1101 
1102 	if (beige || g4agp)
1103 		err = build_mixers(chip,
1104 				ARRAY_SIZE(snd_pmac_screamer_mic_boost_beige),
1105 				snd_pmac_screamer_mic_boost_beige);
1106 	else if (imac)
1107 		err = build_mixers(chip,
1108 				ARRAY_SIZE(snd_pmac_screamer_mic_boost_imac),
1109 				snd_pmac_screamer_mic_boost_imac);
1110 	else if (chip->model == PMAC_SCREAMER)
1111 		err = build_mixers(chip,
1112 				ARRAY_SIZE(snd_pmac_screamer_mic_boost),
1113 				snd_pmac_screamer_mic_boost);
1114 	else if (pm7500)
1115 		err = build_mixers(chip,
1116 				ARRAY_SIZE(snd_pmac_awacs_mic_boost_pmac7500),
1117 				snd_pmac_awacs_mic_boost_pmac7500);
1118 	else
1119 		err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mic_boost),
1120 				snd_pmac_awacs_mic_boost);
1121 	if (err < 0)
1122 		return err;
1123 
1124 	/*
1125 	 * set lowlevel callbacks
1126 	 */
1127 	chip->set_format = snd_pmac_awacs_set_format;
1128 #ifdef CONFIG_PM
1129 	chip->suspend = snd_pmac_awacs_suspend;
1130 	chip->resume = snd_pmac_awacs_resume;
1131 #endif
1132 #ifdef PMAC_SUPPORT_AUTOMUTE
1133 	err = snd_pmac_add_automute(chip);
1134 	if (err < 0)
1135 		return err;
1136 	chip->detect_headphone = snd_pmac_awacs_detect_headphone;
1137 	chip->update_automute = snd_pmac_awacs_update_automute;
1138 	snd_pmac_awacs_update_automute(chip, 0); /* update the status only */
1139 #endif
1140 	if (chip->model == PMAC_SCREAMER) {
1141 		snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
1142 		snd_pmac_awacs_write_noreg(chip, 0, chip->awacs_reg[0]);
1143 	}
1144 
1145 	return 0;
1146 }
1147