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TOMOYO Linux Cross Reference
Linux/sound/ppc/awacs.c

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Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  * PMac AWACS lowlevel functions
  4  *
  5  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
  6  * code based on dmasound.c.
  7  */
  8 
  9 
 10 #include <linux/io.h>
 11 #include <asm/nvram.h>
 12 #include <linux/init.h>
 13 #include <linux/delay.h>
 14 #include <linux/of.h>
 15 #include <linux/slab.h>
 16 #include <sound/core.h>
 17 #include "pmac.h"
 18 
 19 
 20 #ifdef CONFIG_ADB_CUDA
 21 #define PMAC_AMP_AVAIL
 22 #endif
 23 
 24 #ifdef PMAC_AMP_AVAIL
 25 struct awacs_amp {
 26         unsigned char amp_master;
 27         unsigned char amp_vol[2][2];
 28         unsigned char amp_tone[2];
 29 };
 30 
 31 #define CHECK_CUDA_AMP() (sys_ctrler == SYS_CTRLER_CUDA)
 32 
 33 #endif /* PMAC_AMP_AVAIL */
 34 
 35 
 36 static void snd_pmac_screamer_wait(struct snd_pmac *chip)
 37 {
 38         long timeout = 2000;
 39         while (!(in_le32(&chip->awacs->codec_stat) & MASK_VALID)) {
 40                 mdelay(1);
 41                 if (! --timeout) {
 42                         snd_printd("snd_pmac_screamer_wait timeout\n");
 43                         break;
 44                 }
 45         }
 46 }
 47 
 48 /*
 49  * write AWACS register
 50  */
 51 static void
 52 snd_pmac_awacs_write(struct snd_pmac *chip, int val)
 53 {
 54         long timeout = 5000000;
 55 
 56         if (chip->model == PMAC_SCREAMER)
 57                 snd_pmac_screamer_wait(chip);
 58         out_le32(&chip->awacs->codec_ctrl, val | (chip->subframe << 22));
 59         while (in_le32(&chip->awacs->codec_ctrl) & MASK_NEWECMD) {
 60                 if (! --timeout) {
 61                         snd_printd("snd_pmac_awacs_write timeout\n");
 62                         break;
 63                 }
 64         }
 65 }
 66 
 67 static void
 68 snd_pmac_awacs_write_reg(struct snd_pmac *chip, int reg, int val)
 69 {
 70         snd_pmac_awacs_write(chip, val | (reg << 12));
 71         chip->awacs_reg[reg] = val;
 72 }
 73 
 74 static void
 75 snd_pmac_awacs_write_noreg(struct snd_pmac *chip, int reg, int val)
 76 {
 77         snd_pmac_awacs_write(chip, val | (reg << 12));
 78 }
 79 
 80 #ifdef CONFIG_PM
 81 /* Recalibrate chip */
 82 static void screamer_recalibrate(struct snd_pmac *chip)
 83 {
 84         if (chip->model != PMAC_SCREAMER)
 85                 return;
 86 
 87         /* Sorry for the horrible delays... I hope to get that improved
 88          * by making the whole PM process asynchronous in a future version
 89          */
 90         snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
 91         if (chip->manufacturer == 0x1)
 92                 /* delay for broken crystal part */
 93                 msleep(750);
 94         snd_pmac_awacs_write_noreg(chip, 1,
 95                                    chip->awacs_reg[1] | MASK_RECALIBRATE |
 96                                    MASK_CMUTE | MASK_AMUTE);
 97         snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
 98         snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
 99 }
100 
101 #else
102 #define screamer_recalibrate(chip) /* NOP */
103 #endif
104 
105 
106 /*
107  * additional callback to set the pcm format
108  */
109 static void snd_pmac_awacs_set_format(struct snd_pmac *chip)
110 {
111         chip->awacs_reg[1] &= ~MASK_SAMPLERATE;
112         chip->awacs_reg[1] |= chip->rate_index << 3;
113         snd_pmac_awacs_write_reg(chip, 1, chip->awacs_reg[1]);
114 }
115 
116 
117 /*
118  * AWACS volume callbacks
119  */
120 /*
121  * volumes: 0-15 stereo
122  */
123 static int snd_pmac_awacs_info_volume(struct snd_kcontrol *kcontrol,
124                                       struct snd_ctl_elem_info *uinfo)
125 {
126         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
127         uinfo->count = 2;
128         uinfo->value.integer.min = 0;
129         uinfo->value.integer.max = 15;
130         return 0;
131 }
132 
133 static int snd_pmac_awacs_get_volume(struct snd_kcontrol *kcontrol,
134                                      struct snd_ctl_elem_value *ucontrol)
135 {
136         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
137         int reg = kcontrol->private_value & 0xff;
138         int lshift = (kcontrol->private_value >> 8) & 0xff;
139         int inverted = (kcontrol->private_value >> 16) & 1;
140         unsigned long flags;
141         int vol[2];
142 
143         spin_lock_irqsave(&chip->reg_lock, flags);
144         vol[0] = (chip->awacs_reg[reg] >> lshift) & 0xf;
145         vol[1] = chip->awacs_reg[reg] & 0xf;
146         spin_unlock_irqrestore(&chip->reg_lock, flags);
147         if (inverted) {
148                 vol[0] = 0x0f - vol[0];
149                 vol[1] = 0x0f - vol[1];
150         }
151         ucontrol->value.integer.value[0] = vol[0];
152         ucontrol->value.integer.value[1] = vol[1];
153         return 0;
154 }
155 
156 static int snd_pmac_awacs_put_volume(struct snd_kcontrol *kcontrol,
157                                      struct snd_ctl_elem_value *ucontrol)
158 {
159         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
160         int reg = kcontrol->private_value & 0xff;
161         int lshift = (kcontrol->private_value >> 8) & 0xff;
162         int inverted = (kcontrol->private_value >> 16) & 1;
163         int val, oldval;
164         unsigned long flags;
165         unsigned int vol[2];
166 
167         vol[0] = ucontrol->value.integer.value[0];
168         vol[1] = ucontrol->value.integer.value[1];
169         if (vol[0] > 0x0f || vol[1] > 0x0f)
170                 return -EINVAL;
171         if (inverted) {
172                 vol[0] = 0x0f - vol[0];
173                 vol[1] = 0x0f - vol[1];
174         }
175         vol[0] &= 0x0f;
176         vol[1] &= 0x0f;
177         spin_lock_irqsave(&chip->reg_lock, flags);
178         oldval = chip->awacs_reg[reg];
179         val = oldval & ~(0xf | (0xf << lshift));
180         val |= vol[0] << lshift;
181         val |= vol[1];
182         if (oldval != val)
183                 snd_pmac_awacs_write_reg(chip, reg, val);
184         spin_unlock_irqrestore(&chip->reg_lock, flags);
185         return oldval != reg;
186 }
187 
188 
189 #define AWACS_VOLUME(xname, xreg, xshift, xinverted) \
190 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
191   .info = snd_pmac_awacs_info_volume, \
192   .get = snd_pmac_awacs_get_volume, \
193   .put = snd_pmac_awacs_put_volume, \
194   .private_value = (xreg) | ((xshift) << 8) | ((xinverted) << 16) }
195 
196 /*
197  * mute master/ogain for AWACS: mono
198  */
199 static int snd_pmac_awacs_get_switch(struct snd_kcontrol *kcontrol,
200                                      struct snd_ctl_elem_value *ucontrol)
201 {
202         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
203         int reg = kcontrol->private_value & 0xff;
204         int shift = (kcontrol->private_value >> 8) & 0xff;
205         int invert = (kcontrol->private_value >> 16) & 1;
206         int val;
207         unsigned long flags;
208 
209         spin_lock_irqsave(&chip->reg_lock, flags);
210         val = (chip->awacs_reg[reg] >> shift) & 1;
211         spin_unlock_irqrestore(&chip->reg_lock, flags);
212         if (invert)
213                 val = 1 - val;
214         ucontrol->value.integer.value[0] = val;
215         return 0;
216 }
217 
218 static int snd_pmac_awacs_put_switch(struct snd_kcontrol *kcontrol,
219                                      struct snd_ctl_elem_value *ucontrol)
220 {
221         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
222         int reg = kcontrol->private_value & 0xff;
223         int shift = (kcontrol->private_value >> 8) & 0xff;
224         int invert = (kcontrol->private_value >> 16) & 1;
225         int mask = 1 << shift;
226         int val, changed;
227         unsigned long flags;
228 
229         spin_lock_irqsave(&chip->reg_lock, flags);
230         val = chip->awacs_reg[reg] & ~mask;
231         if (ucontrol->value.integer.value[0] != invert)
232                 val |= mask;
233         changed = chip->awacs_reg[reg] != val;
234         if (changed)
235                 snd_pmac_awacs_write_reg(chip, reg, val);
236         spin_unlock_irqrestore(&chip->reg_lock, flags);
237         return changed;
238 }
239 
240 #define AWACS_SWITCH(xname, xreg, xshift, xinvert) \
241 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = 0, \
242   .info = snd_pmac_boolean_mono_info, \
243   .get = snd_pmac_awacs_get_switch, \
244   .put = snd_pmac_awacs_put_switch, \
245   .private_value = (xreg) | ((xshift) << 8) | ((xinvert) << 16) }
246 
247 
248 #ifdef PMAC_AMP_AVAIL
249 /*
250  * controls for perch/whisper extension cards, e.g. G3 desktop
251  *
252  * TDA7433 connected via i2c address 0x45 (= 0x8a),
253  * accessed through cuda
254  */
255 static void awacs_set_cuda(int reg, int val)
256 {
257         struct adb_request req;
258         cuda_request(&req, NULL, 5, CUDA_PACKET, CUDA_GET_SET_IIC, 0x8a,
259                         reg, val);
260         while (! req.complete)
261                 cuda_poll();
262 }
263 
264 /*
265  * level = 0 - 14, 7 = 0 dB
266  */
267 static void awacs_amp_set_tone(struct awacs_amp *amp, int bass, int treble)
268 {
269         amp->amp_tone[0] = bass;
270         amp->amp_tone[1] = treble;
271         if (bass > 7)
272                 bass = (14 - bass) + 8;
273         if (treble > 7)
274                 treble = (14 - treble) + 8;
275         awacs_set_cuda(2, (bass << 4) | treble);
276 }
277 
278 /*
279  * vol = 0 - 31 (attenuation), 32 = mute bit, stereo
280  */
281 static int awacs_amp_set_vol(struct awacs_amp *amp, int index,
282                              int lvol, int rvol, int do_check)
283 {
284         if (do_check && amp->amp_vol[index][0] == lvol &&
285                         amp->amp_vol[index][1] == rvol)
286                 return 0;
287         awacs_set_cuda(3 + index, lvol);
288         awacs_set_cuda(5 + index, rvol);
289         amp->amp_vol[index][0] = lvol;
290         amp->amp_vol[index][1] = rvol;
291         return 1;
292 }
293 
294 /*
295  * 0 = -79 dB, 79 = 0 dB, 99 = +20 dB
296  */
297 static void awacs_amp_set_master(struct awacs_amp *amp, int vol)
298 {
299         amp->amp_master = vol;
300         if (vol <= 79)
301                 vol = 32 + (79 - vol);
302         else
303                 vol = 32 - (vol - 79);
304         awacs_set_cuda(1, vol);
305 }
306 
307 static void awacs_amp_free(struct snd_pmac *chip)
308 {
309         struct awacs_amp *amp = chip->mixer_data;
310         if (!amp)
311                 return;
312         kfree(amp);
313         chip->mixer_data = NULL;
314         chip->mixer_free = NULL;
315 }
316 
317 
318 /*
319  * mixer controls
320  */
321 static int snd_pmac_awacs_info_volume_amp(struct snd_kcontrol *kcontrol,
322                                           struct snd_ctl_elem_info *uinfo)
323 {
324         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
325         uinfo->count = 2;
326         uinfo->value.integer.min = 0;
327         uinfo->value.integer.max = 31;
328         return 0;
329 }
330 
331 static int snd_pmac_awacs_get_volume_amp(struct snd_kcontrol *kcontrol,
332                                          struct snd_ctl_elem_value *ucontrol)
333 {
334         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
335         int index = kcontrol->private_value;
336         struct awacs_amp *amp = chip->mixer_data;
337 
338         ucontrol->value.integer.value[0] = 31 - (amp->amp_vol[index][0] & 31);
339         ucontrol->value.integer.value[1] = 31 - (amp->amp_vol[index][1] & 31);
340         return 0;
341 }
342 
343 static int snd_pmac_awacs_put_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         int vol[2];
349         struct awacs_amp *amp = chip->mixer_data;
350 
351         vol[0] = (31 - (ucontrol->value.integer.value[0] & 31))
352                 | (amp->amp_vol[index][0] & 32);
353         vol[1] = (31 - (ucontrol->value.integer.value[1] & 31))
354                 | (amp->amp_vol[index][1] & 32);
355         return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
356 }
357 
358 static int snd_pmac_awacs_get_switch_amp(struct snd_kcontrol *kcontrol,
359                                          struct snd_ctl_elem_value *ucontrol)
360 {
361         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
362         int index = kcontrol->private_value;
363         struct awacs_amp *amp = chip->mixer_data;
364 
365         ucontrol->value.integer.value[0] = (amp->amp_vol[index][0] & 32)
366                                         ? 0 : 1;
367         ucontrol->value.integer.value[1] = (amp->amp_vol[index][1] & 32)
368                                         ? 0 : 1;
369         return 0;
370 }
371 
372 static int snd_pmac_awacs_put_switch_amp(struct snd_kcontrol *kcontrol,
373                                          struct snd_ctl_elem_value *ucontrol)
374 {
375         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
376         int index = kcontrol->private_value;
377         int vol[2];
378         struct awacs_amp *amp = chip->mixer_data;
379 
380         vol[0] = (ucontrol->value.integer.value[0] ? 0 : 32)
381                 | (amp->amp_vol[index][0] & 31);
382         vol[1] = (ucontrol->value.integer.value[1] ? 0 : 32)
383                 | (amp->amp_vol[index][1] & 31);
384         return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
385 }
386 
387 static int snd_pmac_awacs_info_tone_amp(struct snd_kcontrol *kcontrol,
388                                         struct snd_ctl_elem_info *uinfo)
389 {
390         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
391         uinfo->count = 1;
392         uinfo->value.integer.min = 0;
393         uinfo->value.integer.max = 14;
394         return 0;
395 }
396 
397 static int snd_pmac_awacs_get_tone_amp(struct snd_kcontrol *kcontrol,
398                                        struct snd_ctl_elem_value *ucontrol)
399 {
400         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
401         int index = kcontrol->private_value;
402         struct awacs_amp *amp = chip->mixer_data;
403 
404         ucontrol->value.integer.value[0] = amp->amp_tone[index];
405         return 0;
406 }
407 
408 static int snd_pmac_awacs_put_tone_amp(struct snd_kcontrol *kcontrol,
409                                        struct snd_ctl_elem_value *ucontrol)
410 {
411         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
412         int index = kcontrol->private_value;
413         struct awacs_amp *amp = chip->mixer_data;
414         unsigned int val;
415 
416         val = ucontrol->value.integer.value[0];
417         if (val > 14)
418                 return -EINVAL;
419         if (val != amp->amp_tone[index]) {
420                 amp->amp_tone[index] = val;
421                 awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]);
422                 return 1;
423         }
424         return 0;
425 }
426 
427 static int snd_pmac_awacs_info_master_amp(struct snd_kcontrol *kcontrol,
428                                           struct snd_ctl_elem_info *uinfo)
429 {
430         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
431         uinfo->count = 1;
432         uinfo->value.integer.min = 0;
433         uinfo->value.integer.max = 99;
434         return 0;
435 }
436 
437 static int snd_pmac_awacs_get_master_amp(struct snd_kcontrol *kcontrol,
438                                          struct snd_ctl_elem_value *ucontrol)
439 {
440         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
441         struct awacs_amp *amp = chip->mixer_data;
442 
443         ucontrol->value.integer.value[0] = amp->amp_master;
444         return 0;
445 }
446 
447 static int snd_pmac_awacs_put_master_amp(struct snd_kcontrol *kcontrol,
448                                          struct snd_ctl_elem_value *ucontrol)
449 {
450         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
451         struct awacs_amp *amp = chip->mixer_data;
452         unsigned int val;
453 
454         val = ucontrol->value.integer.value[0];
455         if (val > 99)
456                 return -EINVAL;
457         if (val != amp->amp_master) {
458                 amp->amp_master = val;
459                 awacs_amp_set_master(amp, amp->amp_master);
460                 return 1;
461         }
462         return 0;
463 }
464 
465 #define AMP_CH_SPK      0
466 #define AMP_CH_HD       1
467 
468 static const struct snd_kcontrol_new snd_pmac_awacs_amp_vol[] = {
469         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
470           .name = "Speaker Playback Volume",
471           .info = snd_pmac_awacs_info_volume_amp,
472           .get = snd_pmac_awacs_get_volume_amp,
473           .put = snd_pmac_awacs_put_volume_amp,
474           .private_value = AMP_CH_SPK,
475         },
476         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
477           .name = "Headphone Playback Volume",
478           .info = snd_pmac_awacs_info_volume_amp,
479           .get = snd_pmac_awacs_get_volume_amp,
480           .put = snd_pmac_awacs_put_volume_amp,
481           .private_value = AMP_CH_HD,
482         },
483         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
484           .name = "Tone Control - Bass",
485           .info = snd_pmac_awacs_info_tone_amp,
486           .get = snd_pmac_awacs_get_tone_amp,
487           .put = snd_pmac_awacs_put_tone_amp,
488           .private_value = 0,
489         },
490         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
491           .name = "Tone Control - Treble",
492           .info = snd_pmac_awacs_info_tone_amp,
493           .get = snd_pmac_awacs_get_tone_amp,
494           .put = snd_pmac_awacs_put_tone_amp,
495           .private_value = 1,
496         },
497         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
498           .name = "Amp Master Playback Volume",
499           .info = snd_pmac_awacs_info_master_amp,
500           .get = snd_pmac_awacs_get_master_amp,
501           .put = snd_pmac_awacs_put_master_amp,
502         },
503 };
504 
505 static const struct snd_kcontrol_new snd_pmac_awacs_amp_hp_sw = {
506         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
507         .name = "Headphone Playback Switch",
508         .info = snd_pmac_boolean_stereo_info,
509         .get = snd_pmac_awacs_get_switch_amp,
510         .put = snd_pmac_awacs_put_switch_amp,
511         .private_value = AMP_CH_HD,
512 };
513 
514 static const struct snd_kcontrol_new snd_pmac_awacs_amp_spk_sw = {
515         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
516         .name = "Speaker Playback Switch",
517         .info = snd_pmac_boolean_stereo_info,
518         .get = snd_pmac_awacs_get_switch_amp,
519         .put = snd_pmac_awacs_put_switch_amp,
520         .private_value = AMP_CH_SPK,
521 };
522 
523 #endif /* PMAC_AMP_AVAIL */
524 
525 
526 /*
527  * mic boost for screamer
528  */
529 static int snd_pmac_screamer_mic_boost_info(struct snd_kcontrol *kcontrol,
530                                             struct snd_ctl_elem_info *uinfo)
531 {
532         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
533         uinfo->count = 1;
534         uinfo->value.integer.min = 0;
535         uinfo->value.integer.max = 3;
536         return 0;
537 }
538 
539 static int snd_pmac_screamer_mic_boost_get(struct snd_kcontrol *kcontrol,
540                                            struct snd_ctl_elem_value *ucontrol)
541 {
542         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
543         int val = 0;
544         unsigned long flags;
545 
546         spin_lock_irqsave(&chip->reg_lock, flags);
547         if (chip->awacs_reg[6] & MASK_MIC_BOOST)
548                 val |= 2;
549         if (chip->awacs_reg[0] & MASK_GAINLINE)
550                 val |= 1;
551         spin_unlock_irqrestore(&chip->reg_lock, flags);
552         ucontrol->value.integer.value[0] = val;
553         return 0;
554 }
555 
556 static int snd_pmac_screamer_mic_boost_put(struct snd_kcontrol *kcontrol,
557                                            struct snd_ctl_elem_value *ucontrol)
558 {
559         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
560         int changed = 0;
561         int val0, val6;
562         unsigned long flags;
563 
564         spin_lock_irqsave(&chip->reg_lock, flags);
565         val0 = chip->awacs_reg[0] & ~MASK_GAINLINE;
566         val6 = chip->awacs_reg[6] & ~MASK_MIC_BOOST;
567         if (ucontrol->value.integer.value[0] & 1)
568                 val0 |= MASK_GAINLINE;
569         if (ucontrol->value.integer.value[0] & 2)
570                 val6 |= MASK_MIC_BOOST;
571         if (val0 != chip->awacs_reg[0]) {
572                 snd_pmac_awacs_write_reg(chip, 0, val0);
573                 changed = 1;
574         }
575         if (val6 != chip->awacs_reg[6]) {
576                 snd_pmac_awacs_write_reg(chip, 6, val6);
577                 changed = 1;
578         }
579         spin_unlock_irqrestore(&chip->reg_lock, flags);
580         return changed;
581 }
582 
583 /*
584  * lists of mixer elements
585  */
586 static const struct snd_kcontrol_new snd_pmac_awacs_mixers[] = {
587         AWACS_SWITCH("Master Capture Switch", 1, SHIFT_LOOPTHRU, 0),
588         AWACS_VOLUME("Master Capture Volume", 0, 4, 0),
589 /*      AWACS_SWITCH("Unknown Playback Switch", 6, SHIFT_PAROUT0, 0), */
590 };
591 
592 static const struct snd_kcontrol_new snd_pmac_screamer_mixers_beige[] = {
593         AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
594         AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1),
595         AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
596         AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_LINE, 0),
597 };
598 
599 static const struct snd_kcontrol_new snd_pmac_screamer_mixers_lo[] = {
600         AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
601 };
602 
603 static const struct snd_kcontrol_new snd_pmac_screamer_mixers_imac[] = {
604         AWACS_VOLUME("Play-through Playback Volume", 5, 6, 1),
605         AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
606 };
607 
608 static const struct snd_kcontrol_new snd_pmac_screamer_mixers_g4agp[] = {
609         AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
610         AWACS_VOLUME("Master Playback Volume", 5, 6, 1),
611         AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
612         AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
613 };
614 
615 static const struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac7500[] = {
616         AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
617         AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
618         AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
619 };
620 
621 static const struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac5500[] = {
622         AWACS_VOLUME("Headphone Playback Volume", 2, 6, 1),
623 };
624 
625 static const struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac[] = {
626         AWACS_VOLUME("Master Playback Volume", 2, 6, 1),
627         AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
628 };
629 
630 /* FIXME: is this correct order?
631  * screamer (powerbook G3 pismo) seems to have different bits...
632  */
633 static const struct snd_kcontrol_new snd_pmac_awacs_mixers2[] = {
634         AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_LINE, 0),
635         AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_MIC, 0),
636 };
637 
638 static const struct snd_kcontrol_new snd_pmac_screamer_mixers2[] = {
639         AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
640         AWACS_SWITCH("Mic Capture Switch", 0, SHIFT_MUX_LINE, 0),
641 };
642 
643 static const struct snd_kcontrol_new snd_pmac_awacs_mixers2_pmac5500[] = {
644         AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
645 };
646 
647 static const struct snd_kcontrol_new snd_pmac_awacs_master_sw =
648 AWACS_SWITCH("Master Playback Switch", 1, SHIFT_HDMUTE, 1);
649 
650 static const struct snd_kcontrol_new snd_pmac_awacs_master_sw_imac =
651 AWACS_SWITCH("Line out Playback Switch", 1, SHIFT_HDMUTE, 1);
652 
653 static const struct snd_kcontrol_new snd_pmac_awacs_master_sw_pmac5500 =
654 AWACS_SWITCH("Headphone Playback Switch", 1, SHIFT_HDMUTE, 1);
655 
656 static const struct snd_kcontrol_new snd_pmac_awacs_mic_boost[] = {
657         AWACS_SWITCH("Mic Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
658 };
659 
660 static const struct snd_kcontrol_new snd_pmac_screamer_mic_boost[] = {
661         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
662           .name = "Mic Boost Capture Volume",
663           .info = snd_pmac_screamer_mic_boost_info,
664           .get = snd_pmac_screamer_mic_boost_get,
665           .put = snd_pmac_screamer_mic_boost_put,
666         },
667 };
668 
669 static const struct snd_kcontrol_new snd_pmac_awacs_mic_boost_pmac7500[] =
670 {
671         AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
672 };
673 
674 static const struct snd_kcontrol_new snd_pmac_screamer_mic_boost_beige[] =
675 {
676         AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
677         AWACS_SWITCH("CD Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0),
678 };
679 
680 static const struct snd_kcontrol_new snd_pmac_screamer_mic_boost_imac[] =
681 {
682         AWACS_SWITCH("Line Boost Capture Switch", 0, SHIFT_GAINLINE, 0),
683         AWACS_SWITCH("Mic Boost Capture Switch", 6, SHIFT_MIC_BOOST, 0),
684 };
685 
686 static const struct snd_kcontrol_new snd_pmac_awacs_speaker_vol[] = {
687         AWACS_VOLUME("Speaker Playback Volume", 4, 6, 1),
688 };
689 
690 static const struct snd_kcontrol_new snd_pmac_awacs_speaker_sw =
691 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_SPKMUTE, 1);
692 
693 static const struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac1 =
694 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 1);
695 
696 static const struct snd_kcontrol_new snd_pmac_awacs_speaker_sw_imac2 =
697 AWACS_SWITCH("Speaker Playback Switch", 1, SHIFT_PAROUT1, 0);
698 
699 
700 /*
701  * add new mixer elements to the card
702  */
703 static int build_mixers(struct snd_pmac *chip, int nums,
704                         const struct snd_kcontrol_new *mixers)
705 {
706         int i, err;
707 
708         for (i = 0; i < nums; i++) {
709                 err = snd_ctl_add(chip->card, snd_ctl_new1(&mixers[i], chip));
710                 if (err < 0)
711                         return err;
712         }
713         return 0;
714 }
715 
716 
717 /*
718  * restore all registers
719  */
720 static void awacs_restore_all_regs(struct snd_pmac *chip)
721 {
722         snd_pmac_awacs_write_noreg(chip, 0, chip->awacs_reg[0]);
723         snd_pmac_awacs_write_noreg(chip, 1, chip->awacs_reg[1]);
724         snd_pmac_awacs_write_noreg(chip, 2, chip->awacs_reg[2]);
725         snd_pmac_awacs_write_noreg(chip, 4, chip->awacs_reg[4]);
726         if (chip->model == PMAC_SCREAMER) {
727                 snd_pmac_awacs_write_noreg(chip, 5, chip->awacs_reg[5]);
728                 snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
729                 snd_pmac_awacs_write_noreg(chip, 7, chip->awacs_reg[7]);
730         }
731 }
732 
733 #ifdef CONFIG_PM
734 static void snd_pmac_awacs_suspend(struct snd_pmac *chip)
735 {
736         snd_pmac_awacs_write_noreg(chip, 1, (chip->awacs_reg[1]
737                                              | MASK_AMUTE | MASK_CMUTE));
738 }
739 
740 static void snd_pmac_awacs_resume(struct snd_pmac *chip)
741 {
742         if (of_machine_is_compatible("PowerBook3,1")
743             || of_machine_is_compatible("PowerBook3,2")) {
744                 msleep(100);
745                 snd_pmac_awacs_write_reg(chip, 1,
746                         chip->awacs_reg[1] & ~MASK_PAROUT);
747                 msleep(300);
748         }
749 
750         awacs_restore_all_regs(chip);
751         if (chip->model == PMAC_SCREAMER) {
752                 /* reset power bits in reg 6 */
753                 mdelay(5);
754                 snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
755         }
756         screamer_recalibrate(chip);
757 #ifdef PMAC_AMP_AVAIL
758         if (chip->mixer_data) {
759                 struct awacs_amp *amp = chip->mixer_data;
760                 awacs_amp_set_vol(amp, 0,
761                                   amp->amp_vol[0][0], amp->amp_vol[0][1], 0);
762                 awacs_amp_set_vol(amp, 1,
763                                   amp->amp_vol[1][0], amp->amp_vol[1][1], 0);
764                 awacs_amp_set_tone(amp, amp->amp_tone[0], amp->amp_tone[1]);
765                 awacs_amp_set_master(amp, amp->amp_master);
766         }
767 #endif
768 }
769 #endif /* CONFIG_PM */
770 
771 #define IS_PM7500 (of_machine_is_compatible("AAPL,7500") \
772                 || of_machine_is_compatible("AAPL,8500") \
773                 || of_machine_is_compatible("AAPL,9500"))
774 #define IS_PM5500 (of_machine_is_compatible("AAPL,e411"))
775 #define IS_BEIGE (of_machine_is_compatible("AAPL,Gossamer"))
776 #define IS_IMAC1 (of_machine_is_compatible("PowerMac2,1"))
777 #define IS_IMAC2 (of_machine_is_compatible("PowerMac2,2") \
778                 || of_machine_is_compatible("PowerMac4,1"))
779 #define IS_G4AGP (of_machine_is_compatible("PowerMac3,1"))
780 #define IS_LOMBARD (of_machine_is_compatible("PowerBook1,1"))
781 
782 static int imac1, imac2;
783 
784 #ifdef PMAC_SUPPORT_AUTOMUTE
785 /*
786  * auto-mute stuffs
787  */
788 static int snd_pmac_awacs_detect_headphone(struct snd_pmac *chip)
789 {
790         return (in_le32(&chip->awacs->codec_stat) & chip->hp_stat_mask) ? 1 : 0;
791 }
792 
793 #ifdef PMAC_AMP_AVAIL
794 static int toggle_amp_mute(struct awacs_amp *amp, int index, int mute)
795 {
796         int vol[2];
797         vol[0] = amp->amp_vol[index][0] & 31;
798         vol[1] = amp->amp_vol[index][1] & 31;
799         if (mute) {
800                 vol[0] |= 32;
801                 vol[1] |= 32;
802         }
803         return awacs_amp_set_vol(amp, index, vol[0], vol[1], 1);
804 }
805 #endif
806 
807 static void snd_pmac_awacs_update_automute(struct snd_pmac *chip, int do_notify)
808 {
809         if (chip->auto_mute) {
810 #ifdef PMAC_AMP_AVAIL
811                 if (chip->mixer_data) {
812                         struct awacs_amp *amp = chip->mixer_data;
813                         int changed;
814                         if (snd_pmac_awacs_detect_headphone(chip)) {
815                                 changed = toggle_amp_mute(amp, AMP_CH_HD, 0);
816                                 changed |= toggle_amp_mute(amp, AMP_CH_SPK, 1);
817                         } else {
818                                 changed = toggle_amp_mute(amp, AMP_CH_HD, 1);
819                                 changed |= toggle_amp_mute(amp, AMP_CH_SPK, 0);
820                         }
821                         if (do_notify && ! changed)
822                                 return;
823                 } else
824 #endif
825                 {
826                         int reg = chip->awacs_reg[1]
827                                 | (MASK_HDMUTE | MASK_SPKMUTE);
828                         if (imac1) {
829                                 reg &= ~MASK_SPKMUTE;
830                                 reg |= MASK_PAROUT1;
831                         } else if (imac2) {
832                                 reg &= ~MASK_SPKMUTE;
833                                 reg &= ~MASK_PAROUT1;
834                         }
835                         if (snd_pmac_awacs_detect_headphone(chip))
836                                 reg &= ~MASK_HDMUTE;
837                         else if (imac1)
838                                 reg &= ~MASK_PAROUT1;
839                         else if (imac2)
840                                 reg |= MASK_PAROUT1;
841                         else
842                                 reg &= ~MASK_SPKMUTE;
843                         if (do_notify && reg == chip->awacs_reg[1])
844                                 return;
845                         snd_pmac_awacs_write_reg(chip, 1, reg);
846                 }
847                 if (do_notify) {
848                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
849                                        &chip->master_sw_ctl->id);
850                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
851                                        &chip->speaker_sw_ctl->id);
852                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
853                                        &chip->hp_detect_ctl->id);
854                 }
855         }
856 }
857 #endif /* PMAC_SUPPORT_AUTOMUTE */
858 
859 
860 /*
861  * initialize chip
862  */
863 int
864 snd_pmac_awacs_init(struct snd_pmac *chip)
865 {
866         int pm7500 = IS_PM7500;
867         int pm5500 = IS_PM5500;
868         int beige = IS_BEIGE;
869         int g4agp = IS_G4AGP;
870         int lombard = IS_LOMBARD;
871         int imac;
872         int err, vol;
873         struct snd_kcontrol *vmaster_sw, *vmaster_vol;
874         struct snd_kcontrol *master_vol, *speaker_vol;
875 
876         imac1 = IS_IMAC1;
877         imac2 = IS_IMAC2;
878         imac = imac1 || imac2;
879         /* looks like MASK_GAINLINE triggers something, so we set here
880          * as start-up
881          */
882         chip->awacs_reg[0] = MASK_MUX_CD | 0xff | MASK_GAINLINE;
883         chip->awacs_reg[1] = MASK_CMUTE | MASK_AMUTE;
884         /* FIXME: Only machines with external SRS module need MASK_PAROUT */
885         if (chip->has_iic || chip->device_id == 0x5 ||
886             /* chip->_device_id == 0x8 || */
887             chip->device_id == 0xb)
888                 chip->awacs_reg[1] |= MASK_PAROUT;
889         /* get default volume from nvram */
890         // vol = (~nvram_read_byte(0x1308) & 7) << 1;
891         // vol = ((pmac_xpram_read( 8 ) & 7 ) << 1 );
892         vol = 0x0f; /* no, on alsa, muted as default */
893         vol = vol + (vol << 6);
894         chip->awacs_reg[2] = vol;
895         chip->awacs_reg[4] = vol;
896         if (chip->model == PMAC_SCREAMER) {
897                 /* FIXME: screamer has loopthru vol control */
898                 chip->awacs_reg[5] = vol;
899                 /* FIXME: maybe should be vol << 3 for PCMCIA speaker */
900                 chip->awacs_reg[6] = MASK_MIC_BOOST;
901                 chip->awacs_reg[7] = 0;
902         }
903 
904         awacs_restore_all_regs(chip);
905         chip->manufacturer = (in_le32(&chip->awacs->codec_stat) >> 8) & 0xf;
906         screamer_recalibrate(chip);
907 
908         chip->revision = (in_le32(&chip->awacs->codec_stat) >> 12) & 0xf;
909 #ifdef PMAC_AMP_AVAIL
910         if (chip->revision == 3 && chip->has_iic && CHECK_CUDA_AMP()) {
911                 struct awacs_amp *amp = kzalloc(sizeof(*amp), GFP_KERNEL);
912                 if (! amp)
913                         return -ENOMEM;
914                 chip->mixer_data = amp;
915                 chip->mixer_free = awacs_amp_free;
916                 /* mute and zero vol */
917                 awacs_amp_set_vol(amp, 0, 63, 63, 0);
918                 awacs_amp_set_vol(amp, 1, 63, 63, 0);
919                 awacs_amp_set_tone(amp, 7, 7); /* 0 dB */
920                 awacs_amp_set_master(amp, 79); /* 0 dB */
921         }
922 #endif /* PMAC_AMP_AVAIL */
923 
924         if (chip->hp_stat_mask == 0) {
925                 /* set headphone-jack detection bit */
926                 switch (chip->model) {
927                 case PMAC_AWACS:
928                         chip->hp_stat_mask = pm7500 || pm5500 ? MASK_HDPCONN
929                                 : MASK_LOCONN;
930                         break;
931                 case PMAC_SCREAMER:
932                         switch (chip->device_id) {
933                         case 0x08:
934                         case 0x0B:
935                                 chip->hp_stat_mask = imac
936                                         ? MASK_LOCONN_IMAC |
937                                         MASK_HDPLCONN_IMAC |
938                                         MASK_HDPRCONN_IMAC
939                                         : MASK_HDPCONN;
940                                 break;
941                         case 0x00:
942                         case 0x05:
943                                 chip->hp_stat_mask = MASK_LOCONN;
944                                 break;
945                         default:
946                                 chip->hp_stat_mask = MASK_HDPCONN;
947                                 break;
948                         }
949                         break;
950                 default:
951                         snd_BUG();
952                         break;
953                 }
954         }
955 
956         /*
957          * build mixers
958          */
959         strcpy(chip->card->mixername, "PowerMac AWACS");
960 
961         err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers),
962                                 snd_pmac_awacs_mixers);
963         if (err < 0)
964                 return err;
965         if (beige || g4agp)
966                 ;
967         else if (chip->model == PMAC_SCREAMER || pm5500)
968                 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_screamer_mixers2),
969                                    snd_pmac_screamer_mixers2);
970         else if (!pm7500)
971                 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mixers2),
972                                    snd_pmac_awacs_mixers2);
973         if (err < 0)
974                 return err;
975         if (pm5500) {
976                 err = build_mixers(chip,
977                                    ARRAY_SIZE(snd_pmac_awacs_mixers2_pmac5500),
978                                    snd_pmac_awacs_mixers2_pmac5500);
979                 if (err < 0)
980                         return err;
981         }
982         master_vol = NULL;
983         if (pm7500)
984                 err = build_mixers(chip,
985                                    ARRAY_SIZE(snd_pmac_awacs_mixers_pmac7500),
986                                    snd_pmac_awacs_mixers_pmac7500);
987         else if (pm5500)
988                 err = snd_ctl_add(chip->card,
989                     (master_vol = snd_ctl_new1(snd_pmac_awacs_mixers_pmac5500,
990                                                 chip)));
991         else if (beige)
992                 err = build_mixers(chip,
993                                    ARRAY_SIZE(snd_pmac_screamer_mixers_beige),
994                                    snd_pmac_screamer_mixers_beige);
995         else if (imac || lombard) {
996                 err = snd_ctl_add(chip->card,
997                     (master_vol = snd_ctl_new1(snd_pmac_screamer_mixers_lo,
998                                                 chip)));
999                 if (err < 0)
1000                         return err;
1001                 err = build_mixers(chip,
1002                                    ARRAY_SIZE(snd_pmac_screamer_mixers_imac),
1003                                    snd_pmac_screamer_mixers_imac);
1004         } else if (g4agp)
1005                 err = build_mixers(chip,
1006                                    ARRAY_SIZE(snd_pmac_screamer_mixers_g4agp),
1007                                    snd_pmac_screamer_mixers_g4agp);
1008         else
1009                 err = build_mixers(chip,
1010                                    ARRAY_SIZE(snd_pmac_awacs_mixers_pmac),
1011                                    snd_pmac_awacs_mixers_pmac);
1012         if (err < 0)
1013                 return err;
1014         chip->master_sw_ctl = snd_ctl_new1((pm7500 || imac || g4agp || lombard)
1015                         ? &snd_pmac_awacs_master_sw_imac
1016                         : pm5500
1017                         ? &snd_pmac_awacs_master_sw_pmac5500
1018                         : &snd_pmac_awacs_master_sw, chip);
1019         err = snd_ctl_add(chip->card, chip->master_sw_ctl);
1020         if (err < 0)
1021                 return err;
1022 #ifdef PMAC_AMP_AVAIL
1023         if (chip->mixer_data) {
1024                 /* use amplifier.  the signal is connected from route A
1025                  * to the amp.  the amp has its headphone and speaker
1026                  * volumes and mute switches, so we use them instead of
1027                  * screamer registers.
1028                  * in this case, it seems the route C is not used.
1029                  */
1030                 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_amp_vol),
1031                                         snd_pmac_awacs_amp_vol);
1032                 if (err < 0)
1033                         return err;
1034                 /* overwrite */
1035                 chip->master_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_hp_sw,
1036                                                         chip);
1037                 err = snd_ctl_add(chip->card, chip->master_sw_ctl);
1038                 if (err < 0)
1039                         return err;
1040                 chip->speaker_sw_ctl = snd_ctl_new1(&snd_pmac_awacs_amp_spk_sw,
1041                                                         chip);
1042                 err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
1043                 if (err < 0)
1044                         return err;
1045         } else
1046 #endif /* PMAC_AMP_AVAIL */
1047         {
1048                 /* route A = headphone, route C = speaker */
1049                 err = snd_ctl_add(chip->card,
1050                     (speaker_vol = snd_ctl_new1(snd_pmac_awacs_speaker_vol,
1051                                                 chip)));
1052                 if (err < 0)
1053                         return err;
1054                 chip->speaker_sw_ctl = snd_ctl_new1(imac1
1055                                 ? &snd_pmac_awacs_speaker_sw_imac1
1056                                 : imac2
1057                                 ? &snd_pmac_awacs_speaker_sw_imac2
1058                                 : &snd_pmac_awacs_speaker_sw, chip);
1059                 err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
1060                 if (err < 0)
1061                         return err;
1062         }
1063 
1064         if (pm5500 || imac || lombard) {
1065                 vmaster_sw = snd_ctl_make_virtual_master(
1066                         "Master Playback Switch", (unsigned int *) NULL);
1067                 err = snd_ctl_add_follower_uncached(vmaster_sw,
1068                                                     chip->master_sw_ctl);
1069                 if (err < 0)
1070                         return err;
1071                 err = snd_ctl_add_follower_uncached(vmaster_sw,
1072                                                     chip->speaker_sw_ctl);
1073                 if (err < 0)
1074                         return err;
1075                 err = snd_ctl_add(chip->card, vmaster_sw);
1076                 if (err < 0)
1077                         return err;
1078                 vmaster_vol = snd_ctl_make_virtual_master(
1079                         "Master Playback Volume", (unsigned int *) NULL);
1080                 err = snd_ctl_add_follower(vmaster_vol, master_vol);
1081                 if (err < 0)
1082                         return err;
1083                 err = snd_ctl_add_follower(vmaster_vol, speaker_vol);
1084                 if (err < 0)
1085                         return err;
1086                 err = snd_ctl_add(chip->card, vmaster_vol);
1087                 if (err < 0)
1088                         return err;
1089         }
1090 
1091         if (beige || g4agp)
1092                 err = build_mixers(chip,
1093                                 ARRAY_SIZE(snd_pmac_screamer_mic_boost_beige),
1094                                 snd_pmac_screamer_mic_boost_beige);
1095         else if (imac)
1096                 err = build_mixers(chip,
1097                                 ARRAY_SIZE(snd_pmac_screamer_mic_boost_imac),
1098                                 snd_pmac_screamer_mic_boost_imac);
1099         else if (chip->model == PMAC_SCREAMER)
1100                 err = build_mixers(chip,
1101                                 ARRAY_SIZE(snd_pmac_screamer_mic_boost),
1102                                 snd_pmac_screamer_mic_boost);
1103         else if (pm7500)
1104                 err = build_mixers(chip,
1105                                 ARRAY_SIZE(snd_pmac_awacs_mic_boost_pmac7500),
1106                                 snd_pmac_awacs_mic_boost_pmac7500);
1107         else
1108                 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_awacs_mic_boost),
1109                                 snd_pmac_awacs_mic_boost);
1110         if (err < 0)
1111                 return err;
1112 
1113         /*
1114          * set lowlevel callbacks
1115          */
1116         chip->set_format = snd_pmac_awacs_set_format;
1117 #ifdef CONFIG_PM
1118         chip->suspend = snd_pmac_awacs_suspend;
1119         chip->resume = snd_pmac_awacs_resume;
1120 #endif
1121 #ifdef PMAC_SUPPORT_AUTOMUTE
1122         err = snd_pmac_add_automute(chip);
1123         if (err < 0)
1124                 return err;
1125         chip->detect_headphone = snd_pmac_awacs_detect_headphone;
1126         chip->update_automute = snd_pmac_awacs_update_automute;
1127         snd_pmac_awacs_update_automute(chip, 0); /* update the status only */
1128 #endif
1129         if (chip->model == PMAC_SCREAMER) {
1130                 snd_pmac_awacs_write_noreg(chip, 6, chip->awacs_reg[6]);
1131                 snd_pmac_awacs_write_noreg(chip, 0, chip->awacs_reg[0]);
1132         }
1133 
1134         return 0;
1135 }
1136 

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