cb6916e9b74ff00b7a0eebb56eef85519e551100
[linux-2.6.git] / sound / ppc / tumbler.c
1 /*
2  * PMac Tumbler/Snapper lowlevel functions
3  *
4  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
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  *   Rene Rebe <rene.rebe@gmx.net>:
21  *     * update from shadow registers on wakeup and headphone plug
22  *     * automatically toggle DRC on headphone plug
23  *      
24  */
25
26
27 #include <sound/driver.h>
28 #include <linux/init.h>
29 #include <linux/delay.h>
30 #include <linux/i2c.h>
31 #include <linux/i2c-dev.h>
32 #include <linux/kmod.h>
33 #include <linux/slab.h>
34 #include <linux/interrupt.h>
35 #include <sound/core.h>
36 #include <asm/io.h>
37 #include <asm/irq.h>
38 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
39 #include <asm/pmac_feature.h>
40 #else
41 #error old crap
42 #endif
43 #include "pmac.h"
44 #include "tumbler_volume.h"
45
46 /* i2c address for tumbler */
47 #define TAS_I2C_ADDR    0x34
48
49 /* registers */
50 #define TAS_REG_MCS     0x01    /* main control */
51 #define TAS_REG_DRC     0x02
52 #define TAS_REG_VOL     0x04
53 #define TAS_REG_TREBLE  0x05
54 #define TAS_REG_BASS    0x06
55 #define TAS_REG_INPUT1  0x07
56 #define TAS_REG_INPUT2  0x08
57
58 /* tas3001c */
59 #define TAS_REG_PCM     TAS_REG_INPUT1
60  
61 /* tas3004 */
62 #define TAS_REG_LMIX    TAS_REG_INPUT1
63 #define TAS_REG_RMIX    TAS_REG_INPUT2
64 #define TAS_REG_MCS2    0x43            /* main control 2 */
65 #define TAS_REG_ACS     0x40            /* analog control */
66
67 /* mono volumes for tas3001c/tas3004 */
68 enum {
69         VOL_IDX_PCM_MONO, /* tas3001c only */
70         VOL_IDX_BASS, VOL_IDX_TREBLE,
71         VOL_IDX_LAST_MONO
72 };
73
74 /* stereo volumes for tas3004 */
75 enum {
76         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
77         VOL_IDX_LAST_MIX
78 };
79
80 typedef struct pmac_gpio {
81 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
82         unsigned int addr;
83 #else
84         void __iomem *addr;
85 #endif
86         int active_state;
87 } pmac_gpio_t;
88
89 typedef struct pmac_tumbler_t {
90         pmac_keywest_t i2c;
91         pmac_gpio_t audio_reset;
92         pmac_gpio_t amp_mute;
93         pmac_gpio_t hp_mute;
94         pmac_gpio_t hp_detect;
95         int headphone_irq;
96         unsigned int master_vol[2];
97         unsigned int save_master_switch[2];
98         unsigned int master_switch[2];
99         unsigned int mono_vol[VOL_IDX_LAST_MONO];
100         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
101         int drc_range;
102         int drc_enable;
103         int capture_source;
104         int anded_reset;
105         int auto_mute_notify;
106         int reset_on_sleep;
107         u8  acs;
108 } pmac_tumbler_t;
109
110
111 /*
112  */
113
114 static int send_init_client(pmac_keywest_t *i2c, unsigned int *regs)
115 {
116         while (*regs > 0) {
117                 int err, count = 10;
118                 do {
119                         err = i2c_smbus_write_byte_data(i2c->client,
120                                                         regs[0], regs[1]);
121                         if (err >= 0)
122                                 break;
123                         mdelay(10);
124                 } while (count--);
125                 if (err < 0)
126                         return -ENXIO;
127                 regs += 2;
128         }
129         return 0;
130 }
131
132
133 static int tumbler_init_client(pmac_keywest_t *i2c)
134 {
135         static unsigned int regs[] = {
136                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
137                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
138                 0, /* terminator */
139         };
140         return send_init_client(i2c, regs);
141 }
142
143 static int snapper_init_client(pmac_keywest_t *i2c)
144 {
145         static unsigned int regs[] = {
146                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
147                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
148                 /* normal operation, all-pass mode */
149                 TAS_REG_MCS2, (1<<1),
150                 /* normal output, no deemphasis, A input, power-up, line-in */
151                 TAS_REG_ACS, 0,
152                 0, /* terminator */
153         };
154         return send_init_client(i2c, regs);
155 }
156         
157 /*
158  * gpio access
159  */
160 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
161 #define do_gpio_write(gp, val) \
162         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
163 #define do_gpio_read(gp) \
164         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
165 #define tumbler_gpio_free(gp) /* NOP */
166 #else
167 #define do_gpio_write(gp, val)  writeb(val, (gp)->addr)
168 #define do_gpio_read(gp)        readb((gp)->addr)
169 static inline void tumbler_gpio_free(pmac_gpio_t *gp)
170 {
171         if (gp->addr) {
172                 iounmap(gp->addr);
173                 gp->addr = NULL;
174         }
175 }
176 #endif /* CONFIG_PPC_HAS_FEATURE_CALLS */
177
178 static void write_audio_gpio(pmac_gpio_t *gp, int active)
179 {
180         if (! gp->addr)
181                 return;
182         active = active ? gp->active_state : !gp->active_state;
183         do_gpio_write(gp, active ? 0x05 : 0x04);
184 }
185
186 static int read_audio_gpio(pmac_gpio_t *gp)
187 {
188         int ret;
189         if (! gp->addr)
190                 return 0;
191         ret = ((do_gpio_read(gp) & 0x02) !=0);
192         return ret == gp->active_state;
193 }
194
195 /*
196  * update master volume
197  */
198 static int tumbler_set_master_volume(pmac_tumbler_t *mix)
199 {
200         unsigned char block[6];
201         unsigned int left_vol, right_vol;
202   
203         if (! mix->i2c.client)
204                 return -ENODEV;
205   
206         if (! mix->master_switch[0])
207                 left_vol = 0;
208         else {
209                 left_vol = mix->master_vol[0];
210                 if (left_vol >= ARRAY_SIZE(master_volume_table))
211                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
212                 left_vol = master_volume_table[left_vol];
213         }
214         if (! mix->master_switch[1])
215                 right_vol = 0;
216         else {
217                 right_vol = mix->master_vol[1];
218                 if (right_vol >= ARRAY_SIZE(master_volume_table))
219                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
220                 right_vol = master_volume_table[right_vol];
221         }
222
223         block[0] = (left_vol >> 16) & 0xff;
224         block[1] = (left_vol >> 8)  & 0xff;
225         block[2] = (left_vol >> 0)  & 0xff;
226
227         block[3] = (right_vol >> 16) & 0xff;
228         block[4] = (right_vol >> 8)  & 0xff;
229         block[5] = (right_vol >> 0)  & 0xff;
230   
231         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_VOL,
232                                        6, block) < 0) {
233                 snd_printk("failed to set volume \n");
234                 return -EINVAL;
235         }
236         return 0;
237 }
238
239
240 /* output volume */
241 static int tumbler_info_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
242 {
243         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
244         uinfo->count = 2;
245         uinfo->value.integer.min = 0;
246         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
247         return 0;
248 }
249
250 static int tumbler_get_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
251 {
252         pmac_t *chip = snd_kcontrol_chip(kcontrol);
253         pmac_tumbler_t *mix = chip->mixer_data;
254         snd_assert(mix, return -ENODEV);
255         ucontrol->value.integer.value[0] = mix->master_vol[0];
256         ucontrol->value.integer.value[1] = mix->master_vol[1];
257         return 0;
258 }
259
260 static int tumbler_put_master_volume(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
261 {
262         pmac_t *chip = snd_kcontrol_chip(kcontrol);
263         pmac_tumbler_t *mix = chip->mixer_data;
264         int change;
265
266         snd_assert(mix, return -ENODEV);
267         change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
268                 mix->master_vol[1] != ucontrol->value.integer.value[1];
269         if (change) {
270                 mix->master_vol[0] = ucontrol->value.integer.value[0];
271                 mix->master_vol[1] = ucontrol->value.integer.value[1];
272                 tumbler_set_master_volume(mix);
273         }
274         return change;
275 }
276
277 /* output switch */
278 static int tumbler_get_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
279 {
280         pmac_t *chip = snd_kcontrol_chip(kcontrol);
281         pmac_tumbler_t *mix = chip->mixer_data;
282         snd_assert(mix, return -ENODEV);
283         ucontrol->value.integer.value[0] = mix->master_switch[0];
284         ucontrol->value.integer.value[1] = mix->master_switch[1];
285         return 0;
286 }
287
288 static int tumbler_put_master_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
289 {
290         pmac_t *chip = snd_kcontrol_chip(kcontrol);
291         pmac_tumbler_t *mix = chip->mixer_data;
292         int change;
293
294         snd_assert(mix, return -ENODEV);
295         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
296                 mix->master_switch[1] != ucontrol->value.integer.value[1];
297         if (change) {
298                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
299                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
300                 tumbler_set_master_volume(mix);
301         }
302         return change;
303 }
304
305
306 /*
307  * TAS3001c dynamic range compression
308  */
309
310 #define TAS3001_DRC_MAX         0x5f
311
312 static int tumbler_set_drc(pmac_tumbler_t *mix)
313 {
314         unsigned char val[2];
315
316         if (! mix->i2c.client)
317                 return -ENODEV;
318   
319         if (mix->drc_enable) {
320                 val[0] = 0xc1; /* enable, 3:1 compression */
321                 if (mix->drc_range > TAS3001_DRC_MAX)
322                         val[1] = 0xf0;
323                 else if (mix->drc_range < 0)
324                         val[1] = 0x91;
325                 else
326                         val[1] = mix->drc_range + 0x91;
327         } else {
328                 val[0] = 0;
329                 val[1] = 0;
330         }
331
332         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
333                                        2, val) < 0) {
334                 snd_printk("failed to set DRC\n");
335                 return -EINVAL;
336         }
337         return 0;
338 }
339
340 /*
341  * TAS3004
342  */
343
344 #define TAS3004_DRC_MAX         0xef
345
346 static int snapper_set_drc(pmac_tumbler_t *mix)
347 {
348         unsigned char val[6];
349
350         if (! mix->i2c.client)
351                 return -ENODEV;
352   
353         if (mix->drc_enable)
354                 val[0] = 0x50; /* 3:1 above threshold */
355         else
356                 val[0] = 0x51; /* disabled */
357         val[1] = 0x02; /* 1:1 below threshold */
358         if (mix->drc_range > 0xef)
359                 val[2] = 0xef;
360         else if (mix->drc_range < 0)
361                 val[2] = 0x00;
362         else
363                 val[2] = mix->drc_range;
364         val[3] = 0xb0;
365         val[4] = 0x60;
366         val[5] = 0xa0;
367
368         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
369                                        6, val) < 0) {
370                 snd_printk("failed to set DRC\n");
371                 return -EINVAL;
372         }
373         return 0;
374 }
375
376 static int tumbler_info_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
377 {
378         pmac_t *chip = snd_kcontrol_chip(kcontrol);
379         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
380         uinfo->count = 1;
381         uinfo->value.integer.min = 0;
382         uinfo->value.integer.max =
383                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
384         return 0;
385 }
386
387 static int tumbler_get_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
388 {
389         pmac_t *chip = snd_kcontrol_chip(kcontrol);
390         pmac_tumbler_t *mix;
391         if (! (mix = chip->mixer_data))
392                 return -ENODEV;
393         ucontrol->value.integer.value[0] = mix->drc_range;
394         return 0;
395 }
396
397 static int tumbler_put_drc_value(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
398 {
399         pmac_t *chip = snd_kcontrol_chip(kcontrol);
400         pmac_tumbler_t *mix;
401         int change;
402
403         if (! (mix = chip->mixer_data))
404                 return -ENODEV;
405         change = mix->drc_range != ucontrol->value.integer.value[0];
406         if (change) {
407                 mix->drc_range = ucontrol->value.integer.value[0];
408                 if (chip->model == PMAC_TUMBLER)
409                         tumbler_set_drc(mix);
410                 else
411                         snapper_set_drc(mix);
412         }
413         return change;
414 }
415
416 static int tumbler_get_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
417 {
418         pmac_t *chip = snd_kcontrol_chip(kcontrol);
419         pmac_tumbler_t *mix;
420         if (! (mix = chip->mixer_data))
421                 return -ENODEV;
422         ucontrol->value.integer.value[0] = mix->drc_enable;
423         return 0;
424 }
425
426 static int tumbler_put_drc_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
427 {
428         pmac_t *chip = snd_kcontrol_chip(kcontrol);
429         pmac_tumbler_t *mix;
430         int change;
431
432         if (! (mix = chip->mixer_data))
433                 return -ENODEV;
434         change = mix->drc_enable != ucontrol->value.integer.value[0];
435         if (change) {
436                 mix->drc_enable = !!ucontrol->value.integer.value[0];
437                 if (chip->model == PMAC_TUMBLER)
438                         tumbler_set_drc(mix);
439                 else
440                         snapper_set_drc(mix);
441         }
442         return change;
443 }
444
445
446 /*
447  * mono volumes
448  */
449
450 struct tumbler_mono_vol {
451         int index;
452         int reg;
453         int bytes;
454         unsigned int max;
455         unsigned int *table;
456 };
457
458 static int tumbler_set_mono_volume(pmac_tumbler_t *mix, struct tumbler_mono_vol *info)
459 {
460         unsigned char block[4];
461         unsigned int vol;
462         int i;
463   
464         if (! mix->i2c.client)
465                 return -ENODEV;
466   
467         vol = mix->mono_vol[info->index];
468         if (vol >= info->max)
469                 vol = info->max - 1;
470         vol = info->table[vol];
471         for (i = 0; i < info->bytes; i++)
472                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
473         if (i2c_smbus_write_block_data(mix->i2c.client, info->reg,
474                                        info->bytes, block) < 0) {
475                 snd_printk("failed to set mono volume %d\n", info->index);
476                 return -EINVAL;
477         }
478         return 0;
479 }
480
481 static int tumbler_info_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
482 {
483         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
484
485         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
486         uinfo->count = 1;
487         uinfo->value.integer.min = 0;
488         uinfo->value.integer.max = info->max - 1;
489         return 0;
490 }
491
492 static int tumbler_get_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
493 {
494         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
495         pmac_t *chip = snd_kcontrol_chip(kcontrol);
496         pmac_tumbler_t *mix;
497         if (! (mix = chip->mixer_data))
498                 return -ENODEV;
499         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
500         return 0;
501 }
502
503 static int tumbler_put_mono(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
504 {
505         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
506         pmac_t *chip = snd_kcontrol_chip(kcontrol);
507         pmac_tumbler_t *mix;
508         int change;
509
510         if (! (mix = chip->mixer_data))
511                 return -ENODEV;
512         change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
513         if (change) {
514                 mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
515                 tumbler_set_mono_volume(mix, info);
516         }
517         return change;
518 }
519
520 /* TAS3001c mono volumes */
521 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
522         .index = VOL_IDX_PCM_MONO,
523         .reg = TAS_REG_PCM,
524         .bytes = 3,
525         .max = ARRAY_SIZE(mixer_volume_table),
526         .table = mixer_volume_table,
527 };
528
529 static struct tumbler_mono_vol tumbler_bass_vol_info = {
530         .index = VOL_IDX_BASS,
531         .reg = TAS_REG_BASS,
532         .bytes = 1,
533         .max = ARRAY_SIZE(bass_volume_table),
534         .table = bass_volume_table,
535 };
536
537 static struct tumbler_mono_vol tumbler_treble_vol_info = {
538         .index = VOL_IDX_TREBLE,
539         .reg = TAS_REG_TREBLE,
540         .bytes = 1,
541         .max = ARRAY_SIZE(treble_volume_table),
542         .table = treble_volume_table,
543 };
544
545 /* TAS3004 mono volumes */
546 static struct tumbler_mono_vol snapper_bass_vol_info = {
547         .index = VOL_IDX_BASS,
548         .reg = TAS_REG_BASS,
549         .bytes = 1,
550         .max = ARRAY_SIZE(snapper_bass_volume_table),
551         .table = snapper_bass_volume_table,
552 };
553
554 static struct tumbler_mono_vol snapper_treble_vol_info = {
555         .index = VOL_IDX_TREBLE,
556         .reg = TAS_REG_TREBLE,
557         .bytes = 1,
558         .max = ARRAY_SIZE(snapper_treble_volume_table),
559         .table = snapper_treble_volume_table,
560 };
561
562
563 #define DEFINE_MONO(xname,type) { \
564         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
565         .name = xname, \
566         .info = tumbler_info_mono, \
567         .get = tumbler_get_mono, \
568         .put = tumbler_put_mono, \
569         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
570 }
571
572 #define DEFINE_SNAPPER_MONO(xname,type) { \
573         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
574         .name = xname, \
575         .info = tumbler_info_mono, \
576         .get = tumbler_get_mono, \
577         .put = tumbler_put_mono, \
578         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
579 }
580
581
582 /*
583  * snapper mixer volumes
584  */
585
586 static int snapper_set_mix_vol1(pmac_tumbler_t *mix, int idx, int ch, int reg)
587 {
588         int i, j, vol;
589         unsigned char block[9];
590
591         vol = mix->mix_vol[idx][ch];
592         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
593                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
594                 mix->mix_vol[idx][ch] = vol;
595         }
596
597         for (i = 0; i < 3; i++) {
598                 vol = mix->mix_vol[i][ch];
599                 vol = mixer_volume_table[vol];
600                 for (j = 0; j < 3; j++)
601                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
602         }
603         if (i2c_smbus_write_block_data(mix->i2c.client, reg, 9, block) < 0) {
604                 snd_printk("failed to set mono volume %d\n", reg);
605                 return -EINVAL;
606         }
607         return 0;
608 }
609
610 static int snapper_set_mix_vol(pmac_tumbler_t *mix, int idx)
611 {
612         if (! mix->i2c.client)
613                 return -ENODEV;
614         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
615             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
616                 return -EINVAL;
617         return 0;
618 }
619
620 static int snapper_info_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
621 {
622         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
623         uinfo->count = 2;
624         uinfo->value.integer.min = 0;
625         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
626         return 0;
627 }
628
629 static int snapper_get_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
630 {
631         int idx = (int)kcontrol->private_value;
632         pmac_t *chip = snd_kcontrol_chip(kcontrol);
633         pmac_tumbler_t *mix;
634         if (! (mix = chip->mixer_data))
635                 return -ENODEV;
636         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
637         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
638         return 0;
639 }
640
641 static int snapper_put_mix(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
642 {
643         int idx = (int)kcontrol->private_value;
644         pmac_t *chip = snd_kcontrol_chip(kcontrol);
645         pmac_tumbler_t *mix;
646         int change;
647
648         if (! (mix = chip->mixer_data))
649                 return -ENODEV;
650         change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
651                 mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
652         if (change) {
653                 mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
654                 mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
655                 snapper_set_mix_vol(mix, idx);
656         }
657         return change;
658 }
659
660
661 /*
662  * mute switches. FIXME: Turn that into software mute when both outputs are muted
663  * to avoid codec reset on ibook M7
664  */
665
666 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP };
667
668 static int tumbler_get_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
669 {
670         pmac_t *chip = snd_kcontrol_chip(kcontrol);
671         pmac_tumbler_t *mix;
672         pmac_gpio_t *gp;
673         if (! (mix = chip->mixer_data))
674                 return -ENODEV;
675         gp = (kcontrol->private_value == TUMBLER_MUTE_HP) ? &mix->hp_mute : &mix->amp_mute;
676         ucontrol->value.integer.value[0] = ! read_audio_gpio(gp);
677         return 0;
678 }
679
680 static int tumbler_put_mute_switch(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
681 {
682         pmac_t *chip = snd_kcontrol_chip(kcontrol);
683         pmac_tumbler_t *mix;
684         pmac_gpio_t *gp;
685         int val;
686 #ifdef PMAC_SUPPORT_AUTOMUTE
687         if (chip->update_automute && chip->auto_mute)
688                 return 0; /* don't touch in the auto-mute mode */
689 #endif  
690         if (! (mix = chip->mixer_data))
691                 return -ENODEV;
692         gp = (kcontrol->private_value == TUMBLER_MUTE_HP) ? &mix->hp_mute : &mix->amp_mute;
693         val = ! read_audio_gpio(gp);
694         if (val != ucontrol->value.integer.value[0]) {
695                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
696                 return 1;
697         }
698         return 0;
699 }
700
701 static int snapper_set_capture_source(pmac_tumbler_t *mix)
702 {
703         if (! mix->i2c.client)
704                 return -ENODEV;
705         if (mix->capture_source)
706                 mix->acs = mix->acs |= 2;
707         else
708                 mix->acs &= ~2;
709         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
710 }
711
712 static int snapper_info_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
713 {
714         static char *texts[2] = {
715                 "Line", "Mic"
716         };
717         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
718         uinfo->count = 1;
719         uinfo->value.enumerated.items = 2;
720         if (uinfo->value.enumerated.item > 1)
721                 uinfo->value.enumerated.item = 1;
722         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
723         return 0;
724 }
725
726 static int snapper_get_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
727 {
728         pmac_t *chip = snd_kcontrol_chip(kcontrol);
729         pmac_tumbler_t *mix = chip->mixer_data;
730
731         snd_assert(mix, return -ENODEV);
732         ucontrol->value.integer.value[0] = mix->capture_source;
733         return 0;
734 }
735
736 static int snapper_put_capture_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
737 {
738         pmac_t *chip = snd_kcontrol_chip(kcontrol);
739         pmac_tumbler_t *mix = chip->mixer_data;
740         int change;
741
742         snd_assert(mix, return -ENODEV);
743         change = ucontrol->value.integer.value[0] != mix->capture_source;
744         if (change) {
745                 mix->capture_source = !!ucontrol->value.integer.value[0];
746                 snapper_set_capture_source(mix);
747         }
748         return change;
749 }
750
751 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
752         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
753         .name = xname, \
754         .info = snapper_info_mix, \
755         .get = snapper_get_mix, \
756         .put = snapper_put_mix, \
757         .index = idx,\
758         .private_value = ofs, \
759 }
760
761
762 /*
763  */
764 static snd_kcontrol_new_t tumbler_mixers[] __initdata = {
765         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
766           .name = "Master Playback Volume",
767           .info = tumbler_info_master_volume,
768           .get = tumbler_get_master_volume,
769           .put = tumbler_put_master_volume
770         },
771         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
772           .name = "Master Playback Switch",
773           .info = snd_pmac_boolean_stereo_info,
774           .get = tumbler_get_master_switch,
775           .put = tumbler_put_master_switch
776         },
777         DEFINE_MONO("Tone Control - Bass", bass),
778         DEFINE_MONO("Tone Control - Treble", treble),
779         DEFINE_MONO("PCM Playback Volume", pcm),
780         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
781           .name = "DRC Range",
782           .info = tumbler_info_drc_value,
783           .get = tumbler_get_drc_value,
784           .put = tumbler_put_drc_value
785         },
786 };
787
788 static snd_kcontrol_new_t snapper_mixers[] __initdata = {
789         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
790           .name = "Master Playback Volume",
791           .info = tumbler_info_master_volume,
792           .get = tumbler_get_master_volume,
793           .put = tumbler_put_master_volume
794         },
795         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
796           .name = "Master Playback Switch",
797           .info = snd_pmac_boolean_stereo_info,
798           .get = tumbler_get_master_switch,
799           .put = tumbler_put_master_switch
800         },
801         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
802         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
803         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
804         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
805         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
806         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
807           .name = "DRC Range",
808           .info = tumbler_info_drc_value,
809           .get = tumbler_get_drc_value,
810           .put = tumbler_put_drc_value
811         },
812         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
813           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
814           .info = snapper_info_capture_source,
815           .get = snapper_get_capture_source,
816           .put = snapper_put_capture_source
817         },
818 };
819
820 static snd_kcontrol_new_t tumbler_hp_sw __initdata = {
821         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
822         .name = "Headphone Playback Switch",
823         .info = snd_pmac_boolean_mono_info,
824         .get = tumbler_get_mute_switch,
825         .put = tumbler_put_mute_switch,
826         .private_value = TUMBLER_MUTE_HP,
827 };
828 static snd_kcontrol_new_t tumbler_speaker_sw __initdata = {
829         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
830         .name = "PC Speaker Playback Switch",
831         .info = snd_pmac_boolean_mono_info,
832         .get = tumbler_get_mute_switch,
833         .put = tumbler_put_mute_switch,
834         .private_value = TUMBLER_MUTE_AMP,
835 };
836 static snd_kcontrol_new_t tumbler_drc_sw __initdata = {
837         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
838         .name = "DRC Switch",
839         .info = snd_pmac_boolean_mono_info,
840         .get = tumbler_get_drc_switch,
841         .put = tumbler_put_drc_switch
842 };
843
844
845 #ifdef PMAC_SUPPORT_AUTOMUTE
846 /*
847  * auto-mute stuffs
848  */
849 static int tumbler_detect_headphone(pmac_t *chip)
850 {
851         pmac_tumbler_t *mix = chip->mixer_data;
852         return read_audio_gpio(&mix->hp_detect);
853 }
854
855 static void check_mute(pmac_t *chip, pmac_gpio_t *gp, int val, int do_notify, snd_kcontrol_t *sw)
856 {
857         //pmac_tumbler_t *mix = chip->mixer_data;
858         if (val != read_audio_gpio(gp)) {
859                 write_audio_gpio(gp, val);
860                 if (do_notify)
861                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &sw->id);
862         }
863 }
864
865 static struct work_struct device_change;
866
867 static void device_change_handler(void *self)
868 {
869         pmac_t *chip = (pmac_t*) self;
870         pmac_tumbler_t *mix;
871
872         if (!chip)
873                 return;
874
875         mix = chip->mixer_data;
876         snd_assert(mix, return);
877
878         if (tumbler_detect_headphone(chip)) {
879                 /* mute speaker */
880                 check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
881                            chip->master_sw_ctl);
882                 if (mix->anded_reset)
883                         big_mdelay(10);
884                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
885                            chip->speaker_sw_ctl);
886                 mix->drc_enable = 0;
887         } else {
888                 /* unmute speaker */
889                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
890                            chip->speaker_sw_ctl);
891                 if (mix->anded_reset)
892                         big_mdelay(10);
893                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
894                            chip->master_sw_ctl);
895                 mix->drc_enable = 1;
896         }
897         if (mix->auto_mute_notify) {
898                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
899                                        &chip->hp_detect_ctl->id);
900                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
901                                &chip->drc_sw_ctl->id);
902         }
903
904         /* first set the DRC so the speaker do not explode -ReneR */
905         if (chip->model == PMAC_TUMBLER)
906                 tumbler_set_drc(mix);
907         else
908                 snapper_set_drc(mix);
909
910         /* reset the master volume so the correct amplification is applied */
911         tumbler_set_master_volume(mix);
912 }
913
914 static void tumbler_update_automute(pmac_t *chip, int do_notify)
915 {
916         if (chip->auto_mute) {
917                 pmac_tumbler_t *mix;
918                 mix = chip->mixer_data;
919                 snd_assert(mix, return);
920                 mix->auto_mute_notify = do_notify;
921                 schedule_work(&device_change);
922         }
923 }
924 #endif /* PMAC_SUPPORT_AUTOMUTE */
925
926
927 /* interrupt - headphone plug changed */
928 static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
929 {
930         pmac_t *chip = devid;
931         if (chip->update_automute && chip->initialized) {
932                 chip->update_automute(chip, 1);
933                 return IRQ_HANDLED;
934         }
935         return IRQ_NONE;
936 }
937
938 /* look for audio-gpio device */
939 static struct device_node *find_audio_device(const char *name)
940 {
941         struct device_node *np;
942   
943         if (! (np = find_devices("gpio")))
944                 return NULL;
945   
946         for (np = np->child; np; np = np->sibling) {
947                 char *property = get_property(np, "audio-gpio", NULL);
948                 if (property && strcmp(property, name) == 0)
949                         return np;
950         }  
951         return NULL;
952 }
953
954 /* look for audio-gpio device */
955 static struct device_node *find_compatible_audio_device(const char *name)
956 {
957         struct device_node *np;
958   
959         if (! (np = find_devices("gpio")))
960                 return NULL;
961   
962         for (np = np->child; np; np = np->sibling) {
963                 if (device_is_compatible(np, name))
964                         return np;
965         }  
966         return NULL;
967 }
968
969 /* find an audio device and get its address */
970 static long tumbler_find_device(const char *device, pmac_gpio_t *gp, int is_compatible)
971 {
972         struct device_node *node;
973         u32 *base, addr;
974
975         if (is_compatible)
976                 node = find_compatible_audio_device(device);
977         else
978                 node = find_audio_device(device);
979         if (! node) {
980                 snd_printdd("cannot find device %s\n", device);
981                 return -ENODEV;
982         }
983
984         base = (u32 *)get_property(node, "AAPL,address", NULL);
985         if (! base) {
986                 base = (u32 *)get_property(node, "reg", NULL);
987                 if (!base) {
988                         snd_printd("cannot find address for device %s\n", device);
989                         return -ENODEV;
990                 }
991                 /* this only work if PPC_HAS_FEATURE_CALLS is set as we
992                  * are only getting the low part of the address
993                  */
994                 addr = *base;
995                 if (addr < 0x50)
996                         addr += 0x50;
997         } else
998                 addr = *base;
999
1000 #ifdef CONFIG_PPC_HAS_FEATURE_CALLS
1001         gp->addr = addr & 0x0000ffff;
1002 #else
1003         gp->addr = ioremap((unsigned long)addr, 1);
1004 #endif
1005         /* Try to find the active state, default to 0 ! */
1006         base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
1007         if (base)
1008                 gp->active_state = *base;
1009         else
1010                 gp->active_state = 0;
1011
1012         return (node->n_intrs > 0) ? node->intrs[0].line : 0;
1013 }
1014
1015 /* reset audio */
1016 static void tumbler_reset_audio(pmac_t *chip)
1017 {
1018         pmac_tumbler_t *mix = chip->mixer_data;
1019
1020         if (mix->anded_reset) {
1021                 write_audio_gpio(&mix->hp_mute, 0);
1022                 write_audio_gpio(&mix->amp_mute, 0);
1023                 big_mdelay(200);
1024                 write_audio_gpio(&mix->hp_mute, 1);
1025                 write_audio_gpio(&mix->amp_mute, 1);
1026                 big_mdelay(100);
1027                 write_audio_gpio(&mix->hp_mute, 0);
1028                 write_audio_gpio(&mix->amp_mute, 0);
1029                 big_mdelay(100);
1030         } else {
1031                 write_audio_gpio(&mix->audio_reset, 0);
1032                 big_mdelay(200);
1033                 write_audio_gpio(&mix->audio_reset, 1);
1034                 big_mdelay(100);
1035                 write_audio_gpio(&mix->audio_reset, 0);
1036                 big_mdelay(100);
1037         }
1038 }
1039
1040 #ifdef CONFIG_PMAC_PBOOK
1041 /* suspend mixer */
1042 static void tumbler_suspend(pmac_t *chip)
1043 {
1044         pmac_tumbler_t *mix = chip->mixer_data;
1045
1046         if (mix->headphone_irq >= 0)
1047                 disable_irq(mix->headphone_irq);
1048         mix->save_master_switch[0] = mix->master_switch[0];
1049         mix->save_master_switch[1] = mix->master_switch[1];
1050         mix->master_switch[0] = mix->master_switch[1] = 0;
1051         tumbler_set_master_volume(mix);
1052         if (!mix->anded_reset) {
1053                 write_audio_gpio(&mix->amp_mute, 1);
1054                 write_audio_gpio(&mix->hp_mute, 1);
1055         }
1056         if (chip->model == PMAC_SNAPPER) {
1057                 mix->acs |= 1;
1058                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1059         }
1060         if (mix->anded_reset) {
1061                 write_audio_gpio(&mix->amp_mute, 1);
1062                 write_audio_gpio(&mix->hp_mute, 1);
1063         } else
1064                 write_audio_gpio(&mix->audio_reset, 1);
1065 }
1066
1067 /* resume mixer */
1068 static void tumbler_resume(pmac_t *chip)
1069 {
1070         pmac_tumbler_t *mix = chip->mixer_data;
1071
1072         snd_assert(mix, return);
1073
1074         mix->acs &= ~1;
1075         mix->master_switch[0] = mix->save_master_switch[0];
1076         mix->master_switch[1] = mix->save_master_switch[1];
1077         tumbler_reset_audio(chip);
1078         if (mix->i2c.client && mix->i2c.init_client) {
1079                 if (mix->i2c.init_client(&mix->i2c) < 0)
1080                         printk(KERN_ERR "tumbler_init_client error\n");
1081         } else
1082                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1083         if (chip->model == PMAC_TUMBLER) {
1084                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1085                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1086                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1087                 tumbler_set_drc(mix);
1088         } else {
1089                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1090                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1091                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1092                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1093                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1094                 snapper_set_drc(mix);
1095                 snapper_set_capture_source(mix);
1096         }
1097         tumbler_set_master_volume(mix);
1098         if (chip->update_automute)
1099                 chip->update_automute(chip, 0);
1100         if (mix->headphone_irq >= 0)
1101                 enable_irq(mix->headphone_irq);
1102 }
1103 #endif
1104
1105 /* initialize tumbler */
1106 static int __init tumbler_init(pmac_t *chip)
1107 {
1108         int irq, err;
1109         pmac_tumbler_t *mix = chip->mixer_data;
1110         snd_assert(mix, return -EINVAL);
1111
1112         if (tumbler_find_device("audio-hw-reset", &mix->audio_reset, 0) < 0)
1113                 tumbler_find_device("hw-reset", &mix->audio_reset, 1);
1114         if (tumbler_find_device("amp-mute", &mix->amp_mute, 0) < 0)
1115                 tumbler_find_device("amp-mute", &mix->amp_mute, 1);
1116         if (tumbler_find_device("headphone-mute", &mix->hp_mute, 0) < 0)
1117                 tumbler_find_device("headphone-mute", &mix->hp_mute, 1);
1118         irq = tumbler_find_device("headphone-detect", &mix->hp_detect, 0);
1119         if (irq < 0)
1120                 irq = tumbler_find_device("headphone-detect", &mix->hp_detect, 1);
1121         if (irq < 0)
1122                 irq = tumbler_find_device("keywest-gpio15", &mix->hp_detect, 1);
1123
1124         tumbler_reset_audio(chip);
1125
1126         /* activate headphone status interrupts */
1127         if (irq >= 0) {
1128                 unsigned char val;
1129                 if ((err = request_irq(irq, headphone_intr, 0,
1130                                        "Tumbler Headphone Detection", chip)) < 0)
1131                         return err;
1132                 /* activate headphone status interrupts */
1133                 val = do_gpio_read(&mix->hp_detect);
1134                 do_gpio_write(&mix->hp_detect, val | 0x80);
1135         }
1136         mix->headphone_irq = irq;
1137   
1138         return 0;
1139 }
1140
1141 static void tumbler_cleanup(pmac_t *chip)
1142 {
1143         pmac_tumbler_t *mix = chip->mixer_data;
1144         if (! mix)
1145                 return;
1146
1147         if (mix->headphone_irq >= 0)
1148                 free_irq(mix->headphone_irq, chip);
1149         tumbler_gpio_free(&mix->audio_reset);
1150         tumbler_gpio_free(&mix->amp_mute);
1151         tumbler_gpio_free(&mix->hp_mute);
1152         tumbler_gpio_free(&mix->hp_detect);
1153         snd_pmac_keywest_cleanup(&mix->i2c);
1154         kfree(mix);
1155         chip->mixer_data = NULL;
1156 }
1157
1158 /* exported */
1159 int __init snd_pmac_tumbler_init(pmac_t *chip)
1160 {
1161         int i, err;
1162         pmac_tumbler_t *mix;
1163         u32 *paddr;
1164         struct device_node *tas_node, *np;
1165         char *chipname;
1166
1167 #ifdef CONFIG_KMOD
1168         if (current->fs->root)
1169                 request_module("i2c-keywest");
1170 #endif /* CONFIG_KMOD */        
1171
1172         mix = kmalloc(sizeof(*mix), GFP_KERNEL);
1173         if (! mix)
1174                 return -ENOMEM;
1175         memset(mix, 0, sizeof(*mix));
1176         mix->headphone_irq = -1;
1177
1178         chip->mixer_data = mix;
1179         chip->mixer_free = tumbler_cleanup;
1180         mix->anded_reset = 0;
1181         mix->reset_on_sleep = 1;
1182
1183         for (np = chip->node->child; np; np = np->sibling) {
1184                 if (!strcmp(np->name, "sound")) {
1185                         if (get_property(np, "has-anded-reset", NULL))
1186                                 mix->anded_reset = 1;
1187                         if (get_property(np, "layout-id", NULL))
1188                                 mix->reset_on_sleep = 0;
1189                         break;
1190                 }
1191         }
1192         if ((err = tumbler_init(chip)) < 0)
1193                 return err;
1194
1195         /* set up TAS */
1196         tas_node = find_devices("deq");
1197         if (tas_node == NULL)
1198                 tas_node = find_devices("codec");
1199         if (tas_node == NULL)
1200                 return -ENODEV;
1201
1202         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
1203         if (paddr == NULL)
1204                 paddr = (u32 *)get_property(tas_node, "reg", NULL);
1205         if (paddr)
1206                 mix->i2c.addr = (*paddr) >> 1;
1207         else
1208                 mix->i2c.addr = TAS_I2C_ADDR;
1209
1210         if (chip->model == PMAC_TUMBLER) {
1211                 mix->i2c.init_client = tumbler_init_client;
1212                 mix->i2c.name = "TAS3001c";
1213                 chipname = "Tumbler";
1214         } else {
1215                 mix->i2c.init_client = snapper_init_client;
1216                 mix->i2c.name = "TAS3004";
1217                 chipname = "Snapper";
1218         }
1219
1220         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1221                 return err;
1222
1223         /*
1224          * build mixers
1225          */
1226         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1227
1228         if (chip->model == PMAC_TUMBLER) {
1229                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1230                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1231                                 return err;
1232                 }
1233         } else {
1234                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1235                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1236                                 return err;
1237                 }
1238         }
1239         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1240         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1241                 return err;
1242         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1243         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1244                 return err;
1245         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1246         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1247                 return err;
1248
1249 #ifdef CONFIG_PMAC_PBOOK
1250         chip->suspend = tumbler_suspend;
1251         chip->resume = tumbler_resume;
1252 #endif
1253
1254         INIT_WORK(&device_change, device_change_handler, (void *)chip);
1255
1256 #ifdef PMAC_SUPPORT_AUTOMUTE
1257         if (mix->headphone_irq >=0 && (err = snd_pmac_add_automute(chip)) < 0)
1258                 return err;
1259         chip->detect_headphone = tumbler_detect_headphone;
1260         chip->update_automute = tumbler_update_automute;
1261         tumbler_update_automute(chip, 0); /* update the status only */
1262 #endif
1263
1264         return 0;
1265 }