ALSA: Kill snd_assert() in other places
[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 <linux/init.h>
28 #include <linux/delay.h>
29 #include <linux/i2c.h>
30 #include <linux/kmod.h>
31 #include <linux/slab.h>
32 #include <linux/interrupt.h>
33 #include <sound/core.h>
34 #include <asm/io.h>
35 #include <asm/irq.h>
36 #include <asm/machdep.h>
37 #include <asm/pmac_feature.h>
38 #include "pmac.h"
39 #include "tumbler_volume.h"
40
41 #undef DEBUG
42
43 #ifdef DEBUG
44 #define DBG(fmt...) printk(fmt)
45 #else
46 #define DBG(fmt...)
47 #endif
48
49 /* i2c address for tumbler */
50 #define TAS_I2C_ADDR    0x34
51
52 /* registers */
53 #define TAS_REG_MCS     0x01    /* main control */
54 #define TAS_REG_DRC     0x02
55 #define TAS_REG_VOL     0x04
56 #define TAS_REG_TREBLE  0x05
57 #define TAS_REG_BASS    0x06
58 #define TAS_REG_INPUT1  0x07
59 #define TAS_REG_INPUT2  0x08
60
61 /* tas3001c */
62 #define TAS_REG_PCM     TAS_REG_INPUT1
63  
64 /* tas3004 */
65 #define TAS_REG_LMIX    TAS_REG_INPUT1
66 #define TAS_REG_RMIX    TAS_REG_INPUT2
67 #define TAS_REG_MCS2    0x43            /* main control 2 */
68 #define TAS_REG_ACS     0x40            /* analog control */
69
70 /* mono volumes for tas3001c/tas3004 */
71 enum {
72         VOL_IDX_PCM_MONO, /* tas3001c only */
73         VOL_IDX_BASS, VOL_IDX_TREBLE,
74         VOL_IDX_LAST_MONO
75 };
76
77 /* stereo volumes for tas3004 */
78 enum {
79         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
80         VOL_IDX_LAST_MIX
81 };
82
83 struct pmac_gpio {
84         unsigned int addr;
85         u8 active_val;
86         u8 inactive_val;
87         u8 active_state;
88 };
89
90 struct pmac_tumbler {
91         struct pmac_keywest i2c;
92         struct pmac_gpio audio_reset;
93         struct pmac_gpio amp_mute;
94         struct pmac_gpio line_mute;
95         struct pmac_gpio line_detect;
96         struct pmac_gpio hp_mute;
97         struct pmac_gpio hp_detect;
98         int headphone_irq;
99         int lineout_irq;
100         unsigned int save_master_vol[2];
101         unsigned int master_vol[2];
102         unsigned int save_master_switch[2];
103         unsigned int master_switch[2];
104         unsigned int mono_vol[VOL_IDX_LAST_MONO];
105         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
106         int drc_range;
107         int drc_enable;
108         int capture_source;
109         int anded_reset;
110         int auto_mute_notify;
111         int reset_on_sleep;
112         u8  acs;
113 };
114
115
116 /*
117  */
118
119 static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
120 {
121         while (*regs > 0) {
122                 int err, count = 10;
123                 do {
124                         err = i2c_smbus_write_byte_data(i2c->client,
125                                                         regs[0], regs[1]);
126                         if (err >= 0)
127                                 break;
128                         DBG("(W) i2c error %d\n", err);
129                         mdelay(10);
130                 } while (count--);
131                 if (err < 0)
132                         return -ENXIO;
133                 regs += 2;
134         }
135         return 0;
136 }
137
138
139 static int tumbler_init_client(struct pmac_keywest *i2c)
140 {
141         static unsigned int regs[] = {
142                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
143                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
144                 0, /* terminator */
145         };
146         DBG("(I) tumbler init client\n");
147         return send_init_client(i2c, regs);
148 }
149
150 static int snapper_init_client(struct pmac_keywest *i2c)
151 {
152         static unsigned int regs[] = {
153                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
154                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
155                 /* normal operation, all-pass mode */
156                 TAS_REG_MCS2, (1<<1),
157                 /* normal output, no deemphasis, A input, power-up, line-in */
158                 TAS_REG_ACS, 0,
159                 0, /* terminator */
160         };
161         DBG("(I) snapper init client\n");
162         return send_init_client(i2c, regs);
163 }
164         
165 /*
166  * gpio access
167  */
168 #define do_gpio_write(gp, val) \
169         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
170 #define do_gpio_read(gp) \
171         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
172 #define tumbler_gpio_free(gp) /* NOP */
173
174 static void write_audio_gpio(struct pmac_gpio *gp, int active)
175 {
176         if (! gp->addr)
177                 return;
178         active = active ? gp->active_val : gp->inactive_val;
179         do_gpio_write(gp, active);
180         DBG("(I) gpio %x write %d\n", gp->addr, active);
181 }
182
183 static int check_audio_gpio(struct pmac_gpio *gp)
184 {
185         int ret;
186
187         if (! gp->addr)
188                 return 0;
189
190         ret = do_gpio_read(gp);
191
192         return (ret & 0x1) == (gp->active_val & 0x1);
193 }
194
195 static int read_audio_gpio(struct pmac_gpio *gp)
196 {
197         int ret;
198         if (! gp->addr)
199                 return 0;
200         ret = do_gpio_read(gp);
201         ret = (ret & 0x02) !=0;
202         return ret == gp->active_state;
203 }
204
205 /*
206  * update master volume
207  */
208 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
209 {
210         unsigned char block[6];
211         unsigned int left_vol, right_vol;
212   
213         if (! mix->i2c.client)
214                 return -ENODEV;
215   
216         if (! mix->master_switch[0])
217                 left_vol = 0;
218         else {
219                 left_vol = mix->master_vol[0];
220                 if (left_vol >= ARRAY_SIZE(master_volume_table))
221                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
222                 left_vol = master_volume_table[left_vol];
223         }
224         if (! mix->master_switch[1])
225                 right_vol = 0;
226         else {
227                 right_vol = mix->master_vol[1];
228                 if (right_vol >= ARRAY_SIZE(master_volume_table))
229                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
230                 right_vol = master_volume_table[right_vol];
231         }
232
233         block[0] = (left_vol >> 16) & 0xff;
234         block[1] = (left_vol >> 8)  & 0xff;
235         block[2] = (left_vol >> 0)  & 0xff;
236
237         block[3] = (right_vol >> 16) & 0xff;
238         block[4] = (right_vol >> 8)  & 0xff;
239         block[5] = (right_vol >> 0)  & 0xff;
240   
241         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
242                                            block) < 0) {
243                 snd_printk("failed to set volume \n");
244                 return -EINVAL;
245         }
246         return 0;
247 }
248
249
250 /* output volume */
251 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
252                                       struct snd_ctl_elem_info *uinfo)
253 {
254         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
255         uinfo->count = 2;
256         uinfo->value.integer.min = 0;
257         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
258         return 0;
259 }
260
261 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
262                                      struct snd_ctl_elem_value *ucontrol)
263 {
264         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
265         struct pmac_tumbler *mix = chip->mixer_data;
266
267         ucontrol->value.integer.value[0] = mix->master_vol[0];
268         ucontrol->value.integer.value[1] = mix->master_vol[1];
269         return 0;
270 }
271
272 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
273                                      struct snd_ctl_elem_value *ucontrol)
274 {
275         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
276         struct pmac_tumbler *mix = chip->mixer_data;
277         unsigned int vol[2];
278         int change;
279
280         vol[0] = ucontrol->value.integer.value[0];
281         vol[1] = ucontrol->value.integer.value[1];
282         if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
283             vol[1] >= ARRAY_SIZE(master_volume_table))
284                 return -EINVAL;
285         change = mix->master_vol[0] != vol[0] ||
286                 mix->master_vol[1] != vol[1];
287         if (change) {
288                 mix->master_vol[0] = vol[0];
289                 mix->master_vol[1] = vol[1];
290                 tumbler_set_master_volume(mix);
291         }
292         return change;
293 }
294
295 /* output switch */
296 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
297                                      struct snd_ctl_elem_value *ucontrol)
298 {
299         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
300         struct pmac_tumbler *mix = chip->mixer_data;
301
302         ucontrol->value.integer.value[0] = mix->master_switch[0];
303         ucontrol->value.integer.value[1] = mix->master_switch[1];
304         return 0;
305 }
306
307 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
308                                      struct snd_ctl_elem_value *ucontrol)
309 {
310         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
311         struct pmac_tumbler *mix = chip->mixer_data;
312         int change;
313
314         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
315                 mix->master_switch[1] != ucontrol->value.integer.value[1];
316         if (change) {
317                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
318                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
319                 tumbler_set_master_volume(mix);
320         }
321         return change;
322 }
323
324
325 /*
326  * TAS3001c dynamic range compression
327  */
328
329 #define TAS3001_DRC_MAX         0x5f
330
331 static int tumbler_set_drc(struct pmac_tumbler *mix)
332 {
333         unsigned char val[2];
334
335         if (! mix->i2c.client)
336                 return -ENODEV;
337   
338         if (mix->drc_enable) {
339                 val[0] = 0xc1; /* enable, 3:1 compression */
340                 if (mix->drc_range > TAS3001_DRC_MAX)
341                         val[1] = 0xf0;
342                 else if (mix->drc_range < 0)
343                         val[1] = 0x91;
344                 else
345                         val[1] = mix->drc_range + 0x91;
346         } else {
347                 val[0] = 0;
348                 val[1] = 0;
349         }
350
351         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
352                                            2, val) < 0) {
353                 snd_printk("failed to set DRC\n");
354                 return -EINVAL;
355         }
356         return 0;
357 }
358
359 /*
360  * TAS3004
361  */
362
363 #define TAS3004_DRC_MAX         0xef
364
365 static int snapper_set_drc(struct pmac_tumbler *mix)
366 {
367         unsigned char val[6];
368
369         if (! mix->i2c.client)
370                 return -ENODEV;
371   
372         if (mix->drc_enable)
373                 val[0] = 0x50; /* 3:1 above threshold */
374         else
375                 val[0] = 0x51; /* disabled */
376         val[1] = 0x02; /* 1:1 below threshold */
377         if (mix->drc_range > 0xef)
378                 val[2] = 0xef;
379         else if (mix->drc_range < 0)
380                 val[2] = 0x00;
381         else
382                 val[2] = mix->drc_range;
383         val[3] = 0xb0;
384         val[4] = 0x60;
385         val[5] = 0xa0;
386
387         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
388                                            6, val) < 0) {
389                 snd_printk("failed to set DRC\n");
390                 return -EINVAL;
391         }
392         return 0;
393 }
394
395 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
396                                   struct snd_ctl_elem_info *uinfo)
397 {
398         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
399         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
400         uinfo->count = 1;
401         uinfo->value.integer.min = 0;
402         uinfo->value.integer.max =
403                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
404         return 0;
405 }
406
407 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
408                                  struct snd_ctl_elem_value *ucontrol)
409 {
410         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
411         struct pmac_tumbler *mix;
412         if (! (mix = chip->mixer_data))
413                 return -ENODEV;
414         ucontrol->value.integer.value[0] = mix->drc_range;
415         return 0;
416 }
417
418 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
419                                  struct snd_ctl_elem_value *ucontrol)
420 {
421         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
422         struct pmac_tumbler *mix;
423         unsigned int val;
424         int change;
425
426         if (! (mix = chip->mixer_data))
427                 return -ENODEV;
428         val = ucontrol->value.integer.value[0];
429         if (chip->model == PMAC_TUMBLER) {
430                 if (val > TAS3001_DRC_MAX)
431                         return -EINVAL;
432         } else {
433                 if (val > TAS3004_DRC_MAX)
434                         return -EINVAL;
435         }
436         change = mix->drc_range != val;
437         if (change) {
438                 mix->drc_range = val;
439                 if (chip->model == PMAC_TUMBLER)
440                         tumbler_set_drc(mix);
441                 else
442                         snapper_set_drc(mix);
443         }
444         return change;
445 }
446
447 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
448                                   struct snd_ctl_elem_value *ucontrol)
449 {
450         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
451         struct pmac_tumbler *mix;
452         if (! (mix = chip->mixer_data))
453                 return -ENODEV;
454         ucontrol->value.integer.value[0] = mix->drc_enable;
455         return 0;
456 }
457
458 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
459                                   struct snd_ctl_elem_value *ucontrol)
460 {
461         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
462         struct pmac_tumbler *mix;
463         int change;
464
465         if (! (mix = chip->mixer_data))
466                 return -ENODEV;
467         change = mix->drc_enable != ucontrol->value.integer.value[0];
468         if (change) {
469                 mix->drc_enable = !!ucontrol->value.integer.value[0];
470                 if (chip->model == PMAC_TUMBLER)
471                         tumbler_set_drc(mix);
472                 else
473                         snapper_set_drc(mix);
474         }
475         return change;
476 }
477
478
479 /*
480  * mono volumes
481  */
482
483 struct tumbler_mono_vol {
484         int index;
485         int reg;
486         int bytes;
487         unsigned int max;
488         unsigned int *table;
489 };
490
491 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
492                                    struct tumbler_mono_vol *info)
493 {
494         unsigned char block[4];
495         unsigned int vol;
496         int i;
497   
498         if (! mix->i2c.client)
499                 return -ENODEV;
500   
501         vol = mix->mono_vol[info->index];
502         if (vol >= info->max)
503                 vol = info->max - 1;
504         vol = info->table[vol];
505         for (i = 0; i < info->bytes; i++)
506                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
507         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
508                                            info->bytes, block) < 0) {
509                 snd_printk("failed to set mono volume %d\n", info->index);
510                 return -EINVAL;
511         }
512         return 0;
513 }
514
515 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
516                              struct snd_ctl_elem_info *uinfo)
517 {
518         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
519
520         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
521         uinfo->count = 1;
522         uinfo->value.integer.min = 0;
523         uinfo->value.integer.max = info->max - 1;
524         return 0;
525 }
526
527 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
528                             struct snd_ctl_elem_value *ucontrol)
529 {
530         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
531         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
532         struct pmac_tumbler *mix;
533         if (! (mix = chip->mixer_data))
534                 return -ENODEV;
535         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
536         return 0;
537 }
538
539 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
540                             struct snd_ctl_elem_value *ucontrol)
541 {
542         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
543         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
544         struct pmac_tumbler *mix;
545         unsigned int vol;
546         int change;
547
548         if (! (mix = chip->mixer_data))
549                 return -ENODEV;
550         vol = ucontrol->value.integer.value[0];
551         if (vol >= info->max)
552                 return -EINVAL;
553         change = mix->mono_vol[info->index] != vol;
554         if (change) {
555                 mix->mono_vol[info->index] = vol;
556                 tumbler_set_mono_volume(mix, info);
557         }
558         return change;
559 }
560
561 /* TAS3001c mono volumes */
562 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
563         .index = VOL_IDX_PCM_MONO,
564         .reg = TAS_REG_PCM,
565         .bytes = 3,
566         .max = ARRAY_SIZE(mixer_volume_table),
567         .table = mixer_volume_table,
568 };
569
570 static struct tumbler_mono_vol tumbler_bass_vol_info = {
571         .index = VOL_IDX_BASS,
572         .reg = TAS_REG_BASS,
573         .bytes = 1,
574         .max = ARRAY_SIZE(bass_volume_table),
575         .table = bass_volume_table,
576 };
577
578 static struct tumbler_mono_vol tumbler_treble_vol_info = {
579         .index = VOL_IDX_TREBLE,
580         .reg = TAS_REG_TREBLE,
581         .bytes = 1,
582         .max = ARRAY_SIZE(treble_volume_table),
583         .table = treble_volume_table,
584 };
585
586 /* TAS3004 mono volumes */
587 static struct tumbler_mono_vol snapper_bass_vol_info = {
588         .index = VOL_IDX_BASS,
589         .reg = TAS_REG_BASS,
590         .bytes = 1,
591         .max = ARRAY_SIZE(snapper_bass_volume_table),
592         .table = snapper_bass_volume_table,
593 };
594
595 static struct tumbler_mono_vol snapper_treble_vol_info = {
596         .index = VOL_IDX_TREBLE,
597         .reg = TAS_REG_TREBLE,
598         .bytes = 1,
599         .max = ARRAY_SIZE(snapper_treble_volume_table),
600         .table = snapper_treble_volume_table,
601 };
602
603
604 #define DEFINE_MONO(xname,type) { \
605         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
606         .name = xname, \
607         .info = tumbler_info_mono, \
608         .get = tumbler_get_mono, \
609         .put = tumbler_put_mono, \
610         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
611 }
612
613 #define DEFINE_SNAPPER_MONO(xname,type) { \
614         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
615         .name = xname, \
616         .info = tumbler_info_mono, \
617         .get = tumbler_get_mono, \
618         .put = tumbler_put_mono, \
619         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
620 }
621
622
623 /*
624  * snapper mixer volumes
625  */
626
627 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
628 {
629         int i, j, vol;
630         unsigned char block[9];
631
632         vol = mix->mix_vol[idx][ch];
633         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
634                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
635                 mix->mix_vol[idx][ch] = vol;
636         }
637
638         for (i = 0; i < 3; i++) {
639                 vol = mix->mix_vol[i][ch];
640                 vol = mixer_volume_table[vol];
641                 for (j = 0; j < 3; j++)
642                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
643         }
644         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
645                                            9, block) < 0) {
646                 snd_printk("failed to set mono volume %d\n", reg);
647                 return -EINVAL;
648         }
649         return 0;
650 }
651
652 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
653 {
654         if (! mix->i2c.client)
655                 return -ENODEV;
656         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
657             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
658                 return -EINVAL;
659         return 0;
660 }
661
662 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
663                             struct snd_ctl_elem_info *uinfo)
664 {
665         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
666         uinfo->count = 2;
667         uinfo->value.integer.min = 0;
668         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
669         return 0;
670 }
671
672 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
673                            struct snd_ctl_elem_value *ucontrol)
674 {
675         int idx = (int)kcontrol->private_value;
676         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
677         struct pmac_tumbler *mix;
678         if (! (mix = chip->mixer_data))
679                 return -ENODEV;
680         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
681         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
682         return 0;
683 }
684
685 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
686                            struct snd_ctl_elem_value *ucontrol)
687 {
688         int idx = (int)kcontrol->private_value;
689         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
690         struct pmac_tumbler *mix;
691         unsigned int vol[2];
692         int change;
693
694         if (! (mix = chip->mixer_data))
695                 return -ENODEV;
696         vol[0] = ucontrol->value.integer.value[0];
697         vol[1] = ucontrol->value.integer.value[1];
698         if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
699             vol[1] >= ARRAY_SIZE(mixer_volume_table))
700                 return -EINVAL;
701         change = mix->mix_vol[idx][0] != vol[0] ||
702                 mix->mix_vol[idx][1] != vol[1];
703         if (change) {
704                 mix->mix_vol[idx][0] = vol[0];
705                 mix->mix_vol[idx][1] = vol[1];
706                 snapper_set_mix_vol(mix, idx);
707         }
708         return change;
709 }
710
711
712 /*
713  * mute switches. FIXME: Turn that into software mute when both outputs are muted
714  * to avoid codec reset on ibook M7
715  */
716
717 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
718
719 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
720                                    struct snd_ctl_elem_value *ucontrol)
721 {
722         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
723         struct pmac_tumbler *mix;
724         struct pmac_gpio *gp;
725         if (! (mix = chip->mixer_data))
726                 return -ENODEV;
727         switch(kcontrol->private_value) {
728         case TUMBLER_MUTE_HP:
729                 gp = &mix->hp_mute;     break;
730         case TUMBLER_MUTE_AMP:
731                 gp = &mix->amp_mute;    break;
732         case TUMBLER_MUTE_LINE:
733                 gp = &mix->line_mute;   break;
734         default:
735                 gp = NULL;
736         }
737         if (gp == NULL)
738                 return -EINVAL;
739         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
740         return 0;
741 }
742
743 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
744                                    struct snd_ctl_elem_value *ucontrol)
745 {
746         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
747         struct pmac_tumbler *mix;
748         struct pmac_gpio *gp;
749         int val;
750 #ifdef PMAC_SUPPORT_AUTOMUTE
751         if (chip->update_automute && chip->auto_mute)
752                 return 0; /* don't touch in the auto-mute mode */
753 #endif  
754         if (! (mix = chip->mixer_data))
755                 return -ENODEV;
756         switch(kcontrol->private_value) {
757         case TUMBLER_MUTE_HP:
758                 gp = &mix->hp_mute;     break;
759         case TUMBLER_MUTE_AMP:
760                 gp = &mix->amp_mute;    break;
761         case TUMBLER_MUTE_LINE:
762                 gp = &mix->line_mute;   break;
763         default:
764                 gp = NULL;
765         }
766         if (gp == NULL)
767                 return -EINVAL;
768         val = ! check_audio_gpio(gp);
769         if (val != ucontrol->value.integer.value[0]) {
770                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
771                 return 1;
772         }
773         return 0;
774 }
775
776 static int snapper_set_capture_source(struct pmac_tumbler *mix)
777 {
778         if (! mix->i2c.client)
779                 return -ENODEV;
780         if (mix->capture_source)
781                 mix->acs = mix->acs |= 2;
782         else
783                 mix->acs &= ~2;
784         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
785 }
786
787 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
788                                        struct snd_ctl_elem_info *uinfo)
789 {
790         static char *texts[2] = {
791                 "Line", "Mic"
792         };
793         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
794         uinfo->count = 1;
795         uinfo->value.enumerated.items = 2;
796         if (uinfo->value.enumerated.item > 1)
797                 uinfo->value.enumerated.item = 1;
798         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
799         return 0;
800 }
801
802 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
803                                       struct snd_ctl_elem_value *ucontrol)
804 {
805         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
806         struct pmac_tumbler *mix = chip->mixer_data;
807
808         ucontrol->value.enumerated.item[0] = mix->capture_source;
809         return 0;
810 }
811
812 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
813                                       struct snd_ctl_elem_value *ucontrol)
814 {
815         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
816         struct pmac_tumbler *mix = chip->mixer_data;
817         int change;
818
819         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
820         if (change) {
821                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
822                 snapper_set_capture_source(mix);
823         }
824         return change;
825 }
826
827 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
828         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
829         .name = xname, \
830         .info = snapper_info_mix, \
831         .get = snapper_get_mix, \
832         .put = snapper_put_mix, \
833         .index = idx,\
834         .private_value = ofs, \
835 }
836
837
838 /*
839  */
840 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
841         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
842           .name = "Master Playback Volume",
843           .info = tumbler_info_master_volume,
844           .get = tumbler_get_master_volume,
845           .put = tumbler_put_master_volume
846         },
847         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
848           .name = "Master Playback Switch",
849           .info = snd_pmac_boolean_stereo_info,
850           .get = tumbler_get_master_switch,
851           .put = tumbler_put_master_switch
852         },
853         DEFINE_MONO("Tone Control - Bass", bass),
854         DEFINE_MONO("Tone Control - Treble", treble),
855         DEFINE_MONO("PCM Playback Volume", pcm),
856         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
857           .name = "DRC Range",
858           .info = tumbler_info_drc_value,
859           .get = tumbler_get_drc_value,
860           .put = tumbler_put_drc_value
861         },
862 };
863
864 static struct snd_kcontrol_new snapper_mixers[] __initdata = {
865         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
866           .name = "Master Playback Volume",
867           .info = tumbler_info_master_volume,
868           .get = tumbler_get_master_volume,
869           .put = tumbler_put_master_volume
870         },
871         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
872           .name = "Master Playback Switch",
873           .info = snd_pmac_boolean_stereo_info,
874           .get = tumbler_get_master_switch,
875           .put = tumbler_put_master_switch
876         },
877         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
878         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
879         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
880         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
881         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
882         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
883           .name = "DRC Range",
884           .info = tumbler_info_drc_value,
885           .get = tumbler_get_drc_value,
886           .put = tumbler_put_drc_value
887         },
888         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
889           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
890           .info = snapper_info_capture_source,
891           .get = snapper_get_capture_source,
892           .put = snapper_put_capture_source
893         },
894 };
895
896 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
897         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
898         .name = "Headphone Playback Switch",
899         .info = snd_pmac_boolean_mono_info,
900         .get = tumbler_get_mute_switch,
901         .put = tumbler_put_mute_switch,
902         .private_value = TUMBLER_MUTE_HP,
903 };
904 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
905         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
906         .name = "PC Speaker Playback Switch",
907         .info = snd_pmac_boolean_mono_info,
908         .get = tumbler_get_mute_switch,
909         .put = tumbler_put_mute_switch,
910         .private_value = TUMBLER_MUTE_AMP,
911 };
912 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
913         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
914         .name = "Line Out Playback Switch",
915         .info = snd_pmac_boolean_mono_info,
916         .get = tumbler_get_mute_switch,
917         .put = tumbler_put_mute_switch,
918         .private_value = TUMBLER_MUTE_LINE,
919 };
920 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
921         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
922         .name = "DRC Switch",
923         .info = snd_pmac_boolean_mono_info,
924         .get = tumbler_get_drc_switch,
925         .put = tumbler_put_drc_switch
926 };
927
928
929 #ifdef PMAC_SUPPORT_AUTOMUTE
930 /*
931  * auto-mute stuffs
932  */
933 static int tumbler_detect_headphone(struct snd_pmac *chip)
934 {
935         struct pmac_tumbler *mix = chip->mixer_data;
936         int detect = 0;
937
938         if (mix->hp_detect.addr)
939                 detect |= read_audio_gpio(&mix->hp_detect);
940         return detect;
941 }
942
943 static int tumbler_detect_lineout(struct snd_pmac *chip)
944 {
945         struct pmac_tumbler *mix = chip->mixer_data;
946         int detect = 0;
947
948         if (mix->line_detect.addr)
949                 detect |= read_audio_gpio(&mix->line_detect);
950         return detect;
951 }
952
953 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
954                        struct snd_kcontrol *sw)
955 {
956         if (check_audio_gpio(gp) != val) {
957                 write_audio_gpio(gp, val);
958                 if (do_notify)
959                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
960                                        &sw->id);
961         }
962 }
963
964 static struct work_struct device_change;
965 static struct snd_pmac *device_change_chip;
966
967 static void device_change_handler(struct work_struct *work)
968 {
969         struct snd_pmac *chip = device_change_chip;
970         struct pmac_tumbler *mix;
971         int headphone, lineout;
972
973         if (!chip)
974                 return;
975
976         mix = chip->mixer_data;
977         if (snd_BUG_ON(!mix))
978                 return;
979
980         headphone = tumbler_detect_headphone(chip);
981         lineout = tumbler_detect_lineout(chip);
982
983         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
984
985         if (headphone || lineout) {
986                 /* unmute headphone/lineout & mute speaker */
987                 if (headphone)
988                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
989                                    chip->master_sw_ctl);
990                 if (lineout && mix->line_mute.addr != 0)
991                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
992                                    chip->lineout_sw_ctl);
993                 if (mix->anded_reset)
994                         msleep(10);
995                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
996                            chip->speaker_sw_ctl);
997         } else {
998                 /* unmute speaker, mute others */
999                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1000                            chip->speaker_sw_ctl);
1001                 if (mix->anded_reset)
1002                         msleep(10);
1003                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1004                            chip->master_sw_ctl);
1005                 if (mix->line_mute.addr != 0)
1006                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1007                                    chip->lineout_sw_ctl);
1008         }
1009         if (mix->auto_mute_notify)
1010                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1011                                        &chip->hp_detect_ctl->id);
1012
1013 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1014         mix->drc_enable = ! (headphone || lineout);
1015         if (mix->auto_mute_notify)
1016                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1017                                &chip->drc_sw_ctl->id);
1018         if (chip->model == PMAC_TUMBLER)
1019                 tumbler_set_drc(mix);
1020         else
1021                 snapper_set_drc(mix);
1022 #endif
1023
1024         /* reset the master volume so the correct amplification is applied */
1025         tumbler_set_master_volume(mix);
1026 }
1027
1028 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1029 {
1030         if (chip->auto_mute) {
1031                 struct pmac_tumbler *mix;
1032                 mix = chip->mixer_data;
1033                 if (snd_BUG_ON(!mix))
1034                         return;
1035                 mix->auto_mute_notify = do_notify;
1036                 schedule_work(&device_change);
1037         }
1038 }
1039 #endif /* PMAC_SUPPORT_AUTOMUTE */
1040
1041
1042 /* interrupt - headphone plug changed */
1043 static irqreturn_t headphone_intr(int irq, void *devid)
1044 {
1045         struct snd_pmac *chip = devid;
1046         if (chip->update_automute && chip->initialized) {
1047                 chip->update_automute(chip, 1);
1048                 return IRQ_HANDLED;
1049         }
1050         return IRQ_NONE;
1051 }
1052
1053 /* look for audio-gpio device */
1054 static struct device_node *find_audio_device(const char *name)
1055 {
1056         struct device_node *gpiop;
1057         struct device_node *np;
1058   
1059         gpiop = of_find_node_by_name(NULL, "gpio");
1060         if (! gpiop)
1061                 return NULL;
1062   
1063         for (np = of_get_next_child(gpiop, NULL); np;
1064                         np = of_get_next_child(gpiop, np)) {
1065                 const char *property = of_get_property(np, "audio-gpio", NULL);
1066                 if (property && strcmp(property, name) == 0)
1067                         break;
1068         }  
1069         of_node_put(gpiop);
1070         return np;
1071 }
1072
1073 /* look for audio-gpio device */
1074 static struct device_node *find_compatible_audio_device(const char *name)
1075 {
1076         struct device_node *gpiop;
1077         struct device_node *np;
1078   
1079         gpiop = of_find_node_by_name(NULL, "gpio");
1080         if (!gpiop)
1081                 return NULL;
1082   
1083         for (np = of_get_next_child(gpiop, NULL); np;
1084                         np = of_get_next_child(gpiop, np)) {
1085                 if (of_device_is_compatible(np, name))
1086                         break;
1087         }  
1088         of_node_put(gpiop);
1089         return np;
1090 }
1091
1092 /* find an audio device and get its address */
1093 static long tumbler_find_device(const char *device, const char *platform,
1094                                 struct pmac_gpio *gp, int is_compatible)
1095 {
1096         struct device_node *node;
1097         const u32 *base;
1098         u32 addr;
1099         long ret;
1100
1101         if (is_compatible)
1102                 node = find_compatible_audio_device(device);
1103         else
1104                 node = find_audio_device(device);
1105         if (! node) {
1106                 DBG("(W) cannot find audio device %s !\n", device);
1107                 snd_printdd("cannot find device %s\n", device);
1108                 return -ENODEV;
1109         }
1110
1111         base = of_get_property(node, "AAPL,address", NULL);
1112         if (! base) {
1113                 base = of_get_property(node, "reg", NULL);
1114                 if (!base) {
1115                         DBG("(E) cannot find address for device %s !\n", device);
1116                         snd_printd("cannot find address for device %s\n", device);
1117                         of_node_put(node);
1118                         return -ENODEV;
1119                 }
1120                 addr = *base;
1121                 if (addr < 0x50)
1122                         addr += 0x50;
1123         } else
1124                 addr = *base;
1125
1126         gp->addr = addr & 0x0000ffff;
1127         /* Try to find the active state, default to 0 ! */
1128         base = of_get_property(node, "audio-gpio-active-state", NULL);
1129         if (base) {
1130                 gp->active_state = *base;
1131                 gp->active_val = (*base) ? 0x5 : 0x4;
1132                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1133         } else {
1134                 const u32 *prop = NULL;
1135                 gp->active_state = 0;
1136                 gp->active_val = 0x4;
1137                 gp->inactive_val = 0x5;
1138                 /* Here are some crude hacks to extract the GPIO polarity and
1139                  * open collector informations out of the do-platform script
1140                  * as we don't yet have an interpreter for these things
1141                  */
1142                 if (platform)
1143                         prop = of_get_property(node, platform, NULL);
1144                 if (prop) {
1145                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1146                                 gp->active_val = 0xd;
1147                                 gp->inactive_val = 0xc;
1148                         }
1149                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1150                                 gp->active_val = 0x5;
1151                                 gp->inactive_val = 0x4;
1152                         }
1153                 }
1154         }
1155
1156         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1157             device, gp->addr, gp->active_state);
1158
1159         ret = irq_of_parse_and_map(node, 0);
1160         of_node_put(node);
1161         return ret;
1162 }
1163
1164 /* reset audio */
1165 static void tumbler_reset_audio(struct snd_pmac *chip)
1166 {
1167         struct pmac_tumbler *mix = chip->mixer_data;
1168
1169         if (mix->anded_reset) {
1170                 DBG("(I) codec anded reset !\n");
1171                 write_audio_gpio(&mix->hp_mute, 0);
1172                 write_audio_gpio(&mix->amp_mute, 0);
1173                 msleep(200);
1174                 write_audio_gpio(&mix->hp_mute, 1);
1175                 write_audio_gpio(&mix->amp_mute, 1);
1176                 msleep(100);
1177                 write_audio_gpio(&mix->hp_mute, 0);
1178                 write_audio_gpio(&mix->amp_mute, 0);
1179                 msleep(100);
1180         } else {
1181                 DBG("(I) codec normal reset !\n");
1182
1183                 write_audio_gpio(&mix->audio_reset, 0);
1184                 msleep(200);
1185                 write_audio_gpio(&mix->audio_reset, 1);
1186                 msleep(100);
1187                 write_audio_gpio(&mix->audio_reset, 0);
1188                 msleep(100);
1189         }
1190 }
1191
1192 #ifdef CONFIG_PM
1193 /* suspend mixer */
1194 static void tumbler_suspend(struct snd_pmac *chip)
1195 {
1196         struct pmac_tumbler *mix = chip->mixer_data;
1197
1198         if (mix->headphone_irq >= 0)
1199                 disable_irq(mix->headphone_irq);
1200         if (mix->lineout_irq >= 0)
1201                 disable_irq(mix->lineout_irq);
1202         mix->save_master_switch[0] = mix->master_switch[0];
1203         mix->save_master_switch[1] = mix->master_switch[1];
1204         mix->save_master_vol[0] = mix->master_vol[0];
1205         mix->save_master_vol[1] = mix->master_vol[1];
1206         mix->master_switch[0] = mix->master_switch[1] = 0;
1207         tumbler_set_master_volume(mix);
1208         if (!mix->anded_reset) {
1209                 write_audio_gpio(&mix->amp_mute, 1);
1210                 write_audio_gpio(&mix->hp_mute, 1);
1211         }
1212         if (chip->model == PMAC_SNAPPER) {
1213                 mix->acs |= 1;
1214                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1215         }
1216         if (mix->anded_reset) {
1217                 write_audio_gpio(&mix->amp_mute, 1);
1218                 write_audio_gpio(&mix->hp_mute, 1);
1219         } else
1220                 write_audio_gpio(&mix->audio_reset, 1);
1221 }
1222
1223 /* resume mixer */
1224 static void tumbler_resume(struct snd_pmac *chip)
1225 {
1226         struct pmac_tumbler *mix = chip->mixer_data;
1227
1228         mix->acs &= ~1;
1229         mix->master_switch[0] = mix->save_master_switch[0];
1230         mix->master_switch[1] = mix->save_master_switch[1];
1231         mix->master_vol[0] = mix->save_master_vol[0];
1232         mix->master_vol[1] = mix->save_master_vol[1];
1233         tumbler_reset_audio(chip);
1234         if (mix->i2c.client && mix->i2c.init_client) {
1235                 if (mix->i2c.init_client(&mix->i2c) < 0)
1236                         printk(KERN_ERR "tumbler_init_client error\n");
1237         } else
1238                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1239         if (chip->model == PMAC_TUMBLER) {
1240                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1241                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1242                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1243                 tumbler_set_drc(mix);
1244         } else {
1245                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1246                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1247                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1248                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1249                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1250                 snapper_set_drc(mix);
1251                 snapper_set_capture_source(mix);
1252         }
1253         tumbler_set_master_volume(mix);
1254         if (chip->update_automute)
1255                 chip->update_automute(chip, 0);
1256         if (mix->headphone_irq >= 0) {
1257                 unsigned char val;
1258
1259                 enable_irq(mix->headphone_irq);
1260                 /* activate headphone status interrupts */
1261                 val = do_gpio_read(&mix->hp_detect);
1262                 do_gpio_write(&mix->hp_detect, val | 0x80);
1263         }
1264         if (mix->lineout_irq >= 0)
1265                 enable_irq(mix->lineout_irq);
1266 }
1267 #endif
1268
1269 /* initialize tumbler */
1270 static int __init tumbler_init(struct snd_pmac *chip)
1271 {
1272         int irq;
1273         struct pmac_tumbler *mix = chip->mixer_data;
1274
1275         if (tumbler_find_device("audio-hw-reset",
1276                                 "platform-do-hw-reset",
1277                                 &mix->audio_reset, 0) < 0)
1278                 tumbler_find_device("hw-reset",
1279                                     "platform-do-hw-reset",
1280                                     &mix->audio_reset, 1);
1281         if (tumbler_find_device("amp-mute",
1282                                 "platform-do-amp-mute",
1283                                 &mix->amp_mute, 0) < 0)
1284                 tumbler_find_device("amp-mute",
1285                                     "platform-do-amp-mute",
1286                                     &mix->amp_mute, 1);
1287         if (tumbler_find_device("headphone-mute",
1288                                 "platform-do-headphone-mute",
1289                                 &mix->hp_mute, 0) < 0)
1290                 tumbler_find_device("headphone-mute",
1291                                     "platform-do-headphone-mute",
1292                                     &mix->hp_mute, 1);
1293         if (tumbler_find_device("line-output-mute",
1294                                 "platform-do-lineout-mute",
1295                                 &mix->line_mute, 0) < 0)
1296                 tumbler_find_device("line-output-mute",
1297                                    "platform-do-lineout-mute",
1298                                     &mix->line_mute, 1);
1299         irq = tumbler_find_device("headphone-detect",
1300                                   NULL, &mix->hp_detect, 0);
1301         if (irq <= NO_IRQ)
1302                 irq = tumbler_find_device("headphone-detect",
1303                                           NULL, &mix->hp_detect, 1);
1304         if (irq <= NO_IRQ)
1305                 irq = tumbler_find_device("keywest-gpio15",
1306                                           NULL, &mix->hp_detect, 1);
1307         mix->headphone_irq = irq;
1308         irq = tumbler_find_device("line-output-detect",
1309                                   NULL, &mix->line_detect, 0);
1310         if (irq <= NO_IRQ)
1311                 irq = tumbler_find_device("line-output-detect",
1312                                           NULL, &mix->line_detect, 1);
1313         mix->lineout_irq = irq;
1314
1315         tumbler_reset_audio(chip);
1316   
1317         return 0;
1318 }
1319
1320 static void tumbler_cleanup(struct snd_pmac *chip)
1321 {
1322         struct pmac_tumbler *mix = chip->mixer_data;
1323         if (! mix)
1324                 return;
1325
1326         if (mix->headphone_irq >= 0)
1327                 free_irq(mix->headphone_irq, chip);
1328         if (mix->lineout_irq >= 0)
1329                 free_irq(mix->lineout_irq, chip);
1330         tumbler_gpio_free(&mix->audio_reset);
1331         tumbler_gpio_free(&mix->amp_mute);
1332         tumbler_gpio_free(&mix->hp_mute);
1333         tumbler_gpio_free(&mix->hp_detect);
1334         snd_pmac_keywest_cleanup(&mix->i2c);
1335         kfree(mix);
1336         chip->mixer_data = NULL;
1337 }
1338
1339 /* exported */
1340 int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
1341 {
1342         int i, err;
1343         struct pmac_tumbler *mix;
1344         const u32 *paddr;
1345         struct device_node *tas_node, *np;
1346         char *chipname;
1347
1348         request_module("i2c-powermac");
1349
1350         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1351         if (! mix)
1352                 return -ENOMEM;
1353         mix->headphone_irq = -1;
1354
1355         chip->mixer_data = mix;
1356         chip->mixer_free = tumbler_cleanup;
1357         mix->anded_reset = 0;
1358         mix->reset_on_sleep = 1;
1359
1360         for (np = chip->node->child; np; np = np->sibling) {
1361                 if (!strcmp(np->name, "sound")) {
1362                         if (of_get_property(np, "has-anded-reset", NULL))
1363                                 mix->anded_reset = 1;
1364                         if (of_get_property(np, "layout-id", NULL))
1365                                 mix->reset_on_sleep = 0;
1366                         break;
1367                 }
1368         }
1369         if ((err = tumbler_init(chip)) < 0)
1370                 return err;
1371
1372         /* set up TAS */
1373         tas_node = of_find_node_by_name(NULL, "deq");
1374         if (tas_node == NULL)
1375                 tas_node = of_find_node_by_name(NULL, "codec");
1376         if (tas_node == NULL)
1377                 return -ENODEV;
1378
1379         paddr = of_get_property(tas_node, "i2c-address", NULL);
1380         if (paddr == NULL)
1381                 paddr = of_get_property(tas_node, "reg", NULL);
1382         if (paddr)
1383                 mix->i2c.addr = (*paddr) >> 1;
1384         else
1385                 mix->i2c.addr = TAS_I2C_ADDR;
1386         of_node_put(tas_node);
1387
1388         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1389
1390         if (chip->model == PMAC_TUMBLER) {
1391                 mix->i2c.init_client = tumbler_init_client;
1392                 mix->i2c.name = "TAS3001c";
1393                 chipname = "Tumbler";
1394         } else {
1395                 mix->i2c.init_client = snapper_init_client;
1396                 mix->i2c.name = "TAS3004";
1397                 chipname = "Snapper";
1398         }
1399
1400         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1401                 return err;
1402
1403         /*
1404          * build mixers
1405          */
1406         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1407
1408         if (chip->model == PMAC_TUMBLER) {
1409                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1410                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1411                                 return err;
1412                 }
1413         } else {
1414                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1415                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1416                                 return err;
1417                 }
1418         }
1419         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1420         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1421                 return err;
1422         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1423         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1424                 return err;
1425         if (mix->line_mute.addr != 0) {
1426                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1427                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1428                         return err;
1429         }
1430         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1431         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1432                 return err;
1433
1434         /* set initial DRC range to 60% */
1435         if (chip->model == PMAC_TUMBLER)
1436                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1437         else
1438                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1439         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1440         if (chip->model == PMAC_TUMBLER)
1441                 tumbler_set_drc(mix);
1442         else
1443                 snapper_set_drc(mix);
1444
1445 #ifdef CONFIG_PM
1446         chip->suspend = tumbler_suspend;
1447         chip->resume = tumbler_resume;
1448 #endif
1449
1450         INIT_WORK(&device_change, device_change_handler);
1451         device_change_chip = chip;
1452
1453 #ifdef PMAC_SUPPORT_AUTOMUTE
1454         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1455             && (err = snd_pmac_add_automute(chip)) < 0)
1456                 return err;
1457         chip->detect_headphone = tumbler_detect_headphone;
1458         chip->update_automute = tumbler_update_automute;
1459         tumbler_update_automute(chip, 0); /* update the status only */
1460
1461         /* activate headphone status interrupts */
1462         if (mix->headphone_irq >= 0) {
1463                 unsigned char val;
1464                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1465                                        "Sound Headphone Detection", chip)) < 0)
1466                         return 0;
1467                 /* activate headphone status interrupts */
1468                 val = do_gpio_read(&mix->hp_detect);
1469                 do_gpio_write(&mix->hp_detect, val | 0x80);
1470         }
1471         if (mix->lineout_irq >= 0) {
1472                 unsigned char val;
1473                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1474                                        "Sound Lineout Detection", chip)) < 0)
1475                         return 0;
1476                 /* activate headphone status interrupts */
1477                 val = do_gpio_read(&mix->line_detect);
1478                 do_gpio_write(&mix->line_detect, val | 0x80);
1479         }
1480 #endif
1481
1482         return 0;
1483 }