ALSA: sound/ppc: update annotations of serveral functions
[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(KERN_DEBUG 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(KERN_ERR "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(KERN_ERR "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(KERN_ERR "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(KERN_ERR "failed to set mono volume %d\n",
510                            info->index);
511                 return -EINVAL;
512         }
513         return 0;
514 }
515
516 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
517                              struct snd_ctl_elem_info *uinfo)
518 {
519         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
520
521         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
522         uinfo->count = 1;
523         uinfo->value.integer.min = 0;
524         uinfo->value.integer.max = info->max - 1;
525         return 0;
526 }
527
528 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
529                             struct snd_ctl_elem_value *ucontrol)
530 {
531         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
532         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
533         struct pmac_tumbler *mix;
534         if (! (mix = chip->mixer_data))
535                 return -ENODEV;
536         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
537         return 0;
538 }
539
540 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
541                             struct snd_ctl_elem_value *ucontrol)
542 {
543         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
544         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
545         struct pmac_tumbler *mix;
546         unsigned int vol;
547         int change;
548
549         if (! (mix = chip->mixer_data))
550                 return -ENODEV;
551         vol = ucontrol->value.integer.value[0];
552         if (vol >= info->max)
553                 return -EINVAL;
554         change = mix->mono_vol[info->index] != vol;
555         if (change) {
556                 mix->mono_vol[info->index] = vol;
557                 tumbler_set_mono_volume(mix, info);
558         }
559         return change;
560 }
561
562 /* TAS3001c mono volumes */
563 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
564         .index = VOL_IDX_PCM_MONO,
565         .reg = TAS_REG_PCM,
566         .bytes = 3,
567         .max = ARRAY_SIZE(mixer_volume_table),
568         .table = mixer_volume_table,
569 };
570
571 static struct tumbler_mono_vol tumbler_bass_vol_info = {
572         .index = VOL_IDX_BASS,
573         .reg = TAS_REG_BASS,
574         .bytes = 1,
575         .max = ARRAY_SIZE(bass_volume_table),
576         .table = bass_volume_table,
577 };
578
579 static struct tumbler_mono_vol tumbler_treble_vol_info = {
580         .index = VOL_IDX_TREBLE,
581         .reg = TAS_REG_TREBLE,
582         .bytes = 1,
583         .max = ARRAY_SIZE(treble_volume_table),
584         .table = treble_volume_table,
585 };
586
587 /* TAS3004 mono volumes */
588 static struct tumbler_mono_vol snapper_bass_vol_info = {
589         .index = VOL_IDX_BASS,
590         .reg = TAS_REG_BASS,
591         .bytes = 1,
592         .max = ARRAY_SIZE(snapper_bass_volume_table),
593         .table = snapper_bass_volume_table,
594 };
595
596 static struct tumbler_mono_vol snapper_treble_vol_info = {
597         .index = VOL_IDX_TREBLE,
598         .reg = TAS_REG_TREBLE,
599         .bytes = 1,
600         .max = ARRAY_SIZE(snapper_treble_volume_table),
601         .table = snapper_treble_volume_table,
602 };
603
604
605 #define DEFINE_MONO(xname,type) { \
606         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
607         .name = xname, \
608         .info = tumbler_info_mono, \
609         .get = tumbler_get_mono, \
610         .put = tumbler_put_mono, \
611         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
612 }
613
614 #define DEFINE_SNAPPER_MONO(xname,type) { \
615         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
616         .name = xname, \
617         .info = tumbler_info_mono, \
618         .get = tumbler_get_mono, \
619         .put = tumbler_put_mono, \
620         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
621 }
622
623
624 /*
625  * snapper mixer volumes
626  */
627
628 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
629 {
630         int i, j, vol;
631         unsigned char block[9];
632
633         vol = mix->mix_vol[idx][ch];
634         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
635                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
636                 mix->mix_vol[idx][ch] = vol;
637         }
638
639         for (i = 0; i < 3; i++) {
640                 vol = mix->mix_vol[i][ch];
641                 vol = mixer_volume_table[vol];
642                 for (j = 0; j < 3; j++)
643                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
644         }
645         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
646                                            9, block) < 0) {
647                 snd_printk(KERN_ERR "failed to set mono volume %d\n", reg);
648                 return -EINVAL;
649         }
650         return 0;
651 }
652
653 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
654 {
655         if (! mix->i2c.client)
656                 return -ENODEV;
657         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
658             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
659                 return -EINVAL;
660         return 0;
661 }
662
663 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
664                             struct snd_ctl_elem_info *uinfo)
665 {
666         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
667         uinfo->count = 2;
668         uinfo->value.integer.min = 0;
669         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
670         return 0;
671 }
672
673 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
674                            struct snd_ctl_elem_value *ucontrol)
675 {
676         int idx = (int)kcontrol->private_value;
677         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
678         struct pmac_tumbler *mix;
679         if (! (mix = chip->mixer_data))
680                 return -ENODEV;
681         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
682         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
683         return 0;
684 }
685
686 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
687                            struct snd_ctl_elem_value *ucontrol)
688 {
689         int idx = (int)kcontrol->private_value;
690         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
691         struct pmac_tumbler *mix;
692         unsigned int vol[2];
693         int change;
694
695         if (! (mix = chip->mixer_data))
696                 return -ENODEV;
697         vol[0] = ucontrol->value.integer.value[0];
698         vol[1] = ucontrol->value.integer.value[1];
699         if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
700             vol[1] >= ARRAY_SIZE(mixer_volume_table))
701                 return -EINVAL;
702         change = mix->mix_vol[idx][0] != vol[0] ||
703                 mix->mix_vol[idx][1] != vol[1];
704         if (change) {
705                 mix->mix_vol[idx][0] = vol[0];
706                 mix->mix_vol[idx][1] = vol[1];
707                 snapper_set_mix_vol(mix, idx);
708         }
709         return change;
710 }
711
712
713 /*
714  * mute switches. FIXME: Turn that into software mute when both outputs are muted
715  * to avoid codec reset on ibook M7
716  */
717
718 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
719
720 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
721                                    struct snd_ctl_elem_value *ucontrol)
722 {
723         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
724         struct pmac_tumbler *mix;
725         struct pmac_gpio *gp;
726         if (! (mix = chip->mixer_data))
727                 return -ENODEV;
728         switch(kcontrol->private_value) {
729         case TUMBLER_MUTE_HP:
730                 gp = &mix->hp_mute;     break;
731         case TUMBLER_MUTE_AMP:
732                 gp = &mix->amp_mute;    break;
733         case TUMBLER_MUTE_LINE:
734                 gp = &mix->line_mute;   break;
735         default:
736                 gp = NULL;
737         }
738         if (gp == NULL)
739                 return -EINVAL;
740         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
741         return 0;
742 }
743
744 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
745                                    struct snd_ctl_elem_value *ucontrol)
746 {
747         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
748         struct pmac_tumbler *mix;
749         struct pmac_gpio *gp;
750         int val;
751 #ifdef PMAC_SUPPORT_AUTOMUTE
752         if (chip->update_automute && chip->auto_mute)
753                 return 0; /* don't touch in the auto-mute mode */
754 #endif  
755         if (! (mix = chip->mixer_data))
756                 return -ENODEV;
757         switch(kcontrol->private_value) {
758         case TUMBLER_MUTE_HP:
759                 gp = &mix->hp_mute;     break;
760         case TUMBLER_MUTE_AMP:
761                 gp = &mix->amp_mute;    break;
762         case TUMBLER_MUTE_LINE:
763                 gp = &mix->line_mute;   break;
764         default:
765                 gp = NULL;
766         }
767         if (gp == NULL)
768                 return -EINVAL;
769         val = ! check_audio_gpio(gp);
770         if (val != ucontrol->value.integer.value[0]) {
771                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
772                 return 1;
773         }
774         return 0;
775 }
776
777 static int snapper_set_capture_source(struct pmac_tumbler *mix)
778 {
779         if (! mix->i2c.client)
780                 return -ENODEV;
781         if (mix->capture_source)
782                 mix->acs = mix->acs |= 2;
783         else
784                 mix->acs &= ~2;
785         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
786 }
787
788 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
789                                        struct snd_ctl_elem_info *uinfo)
790 {
791         static char *texts[2] = {
792                 "Line", "Mic"
793         };
794         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
795         uinfo->count = 1;
796         uinfo->value.enumerated.items = 2;
797         if (uinfo->value.enumerated.item > 1)
798                 uinfo->value.enumerated.item = 1;
799         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
800         return 0;
801 }
802
803 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
804                                       struct snd_ctl_elem_value *ucontrol)
805 {
806         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
807         struct pmac_tumbler *mix = chip->mixer_data;
808
809         ucontrol->value.enumerated.item[0] = mix->capture_source;
810         return 0;
811 }
812
813 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
814                                       struct snd_ctl_elem_value *ucontrol)
815 {
816         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
817         struct pmac_tumbler *mix = chip->mixer_data;
818         int change;
819
820         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
821         if (change) {
822                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
823                 snapper_set_capture_source(mix);
824         }
825         return change;
826 }
827
828 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
829         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
830         .name = xname, \
831         .info = snapper_info_mix, \
832         .get = snapper_get_mix, \
833         .put = snapper_put_mix, \
834         .index = idx,\
835         .private_value = ofs, \
836 }
837
838
839 /*
840  */
841 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
842         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
843           .name = "Master Playback Volume",
844           .info = tumbler_info_master_volume,
845           .get = tumbler_get_master_volume,
846           .put = tumbler_put_master_volume
847         },
848         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
849           .name = "Master Playback Switch",
850           .info = snd_pmac_boolean_stereo_info,
851           .get = tumbler_get_master_switch,
852           .put = tumbler_put_master_switch
853         },
854         DEFINE_MONO("Tone Control - Bass", bass),
855         DEFINE_MONO("Tone Control - Treble", treble),
856         DEFINE_MONO("PCM Playback Volume", pcm),
857         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
858           .name = "DRC Range",
859           .info = tumbler_info_drc_value,
860           .get = tumbler_get_drc_value,
861           .put = tumbler_put_drc_value
862         },
863 };
864
865 static struct snd_kcontrol_new snapper_mixers[] __initdata = {
866         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
867           .name = "Master Playback Volume",
868           .info = tumbler_info_master_volume,
869           .get = tumbler_get_master_volume,
870           .put = tumbler_put_master_volume
871         },
872         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
873           .name = "Master Playback Switch",
874           .info = snd_pmac_boolean_stereo_info,
875           .get = tumbler_get_master_switch,
876           .put = tumbler_put_master_switch
877         },
878         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
879         /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
880         DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
881         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
882         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
883         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
884         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
885           .name = "DRC Range",
886           .info = tumbler_info_drc_value,
887           .get = tumbler_get_drc_value,
888           .put = tumbler_put_drc_value
889         },
890         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
891           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
892           .info = snapper_info_capture_source,
893           .get = snapper_get_capture_source,
894           .put = snapper_put_capture_source
895         },
896 };
897
898 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
899         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
900         .name = "Headphone Playback Switch",
901         .info = snd_pmac_boolean_mono_info,
902         .get = tumbler_get_mute_switch,
903         .put = tumbler_put_mute_switch,
904         .private_value = TUMBLER_MUTE_HP,
905 };
906 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
907         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
908         .name = "PC Speaker Playback Switch",
909         .info = snd_pmac_boolean_mono_info,
910         .get = tumbler_get_mute_switch,
911         .put = tumbler_put_mute_switch,
912         .private_value = TUMBLER_MUTE_AMP,
913 };
914 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
915         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
916         .name = "Line Out Playback Switch",
917         .info = snd_pmac_boolean_mono_info,
918         .get = tumbler_get_mute_switch,
919         .put = tumbler_put_mute_switch,
920         .private_value = TUMBLER_MUTE_LINE,
921 };
922 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
923         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
924         .name = "DRC Switch",
925         .info = snd_pmac_boolean_mono_info,
926         .get = tumbler_get_drc_switch,
927         .put = tumbler_put_drc_switch
928 };
929
930
931 #ifdef PMAC_SUPPORT_AUTOMUTE
932 /*
933  * auto-mute stuffs
934  */
935 static int tumbler_detect_headphone(struct snd_pmac *chip)
936 {
937         struct pmac_tumbler *mix = chip->mixer_data;
938         int detect = 0;
939
940         if (mix->hp_detect.addr)
941                 detect |= read_audio_gpio(&mix->hp_detect);
942         return detect;
943 }
944
945 static int tumbler_detect_lineout(struct snd_pmac *chip)
946 {
947         struct pmac_tumbler *mix = chip->mixer_data;
948         int detect = 0;
949
950         if (mix->line_detect.addr)
951                 detect |= read_audio_gpio(&mix->line_detect);
952         return detect;
953 }
954
955 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
956                        struct snd_kcontrol *sw)
957 {
958         if (check_audio_gpio(gp) != val) {
959                 write_audio_gpio(gp, val);
960                 if (do_notify)
961                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
962                                        &sw->id);
963         }
964 }
965
966 static struct work_struct device_change;
967 static struct snd_pmac *device_change_chip;
968
969 static void device_change_handler(struct work_struct *work)
970 {
971         struct snd_pmac *chip = device_change_chip;
972         struct pmac_tumbler *mix;
973         int headphone, lineout;
974
975         if (!chip)
976                 return;
977
978         mix = chip->mixer_data;
979         if (snd_BUG_ON(!mix))
980                 return;
981
982         headphone = tumbler_detect_headphone(chip);
983         lineout = tumbler_detect_lineout(chip);
984
985         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
986
987         if (headphone || lineout) {
988                 /* unmute headphone/lineout & mute speaker */
989                 if (headphone)
990                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
991                                    chip->master_sw_ctl);
992                 if (lineout && mix->line_mute.addr != 0)
993                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
994                                    chip->lineout_sw_ctl);
995                 if (mix->anded_reset)
996                         msleep(10);
997                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
998                            chip->speaker_sw_ctl);
999         } else {
1000                 /* unmute speaker, mute others */
1001                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1002                            chip->speaker_sw_ctl);
1003                 if (mix->anded_reset)
1004                         msleep(10);
1005                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1006                            chip->master_sw_ctl);
1007                 if (mix->line_mute.addr != 0)
1008                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1009                                    chip->lineout_sw_ctl);
1010         }
1011         if (mix->auto_mute_notify)
1012                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1013                                        &chip->hp_detect_ctl->id);
1014
1015 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1016         mix->drc_enable = ! (headphone || lineout);
1017         if (mix->auto_mute_notify)
1018                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1019                                &chip->drc_sw_ctl->id);
1020         if (chip->model == PMAC_TUMBLER)
1021                 tumbler_set_drc(mix);
1022         else
1023                 snapper_set_drc(mix);
1024 #endif
1025
1026         /* reset the master volume so the correct amplification is applied */
1027         tumbler_set_master_volume(mix);
1028 }
1029
1030 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1031 {
1032         if (chip->auto_mute) {
1033                 struct pmac_tumbler *mix;
1034                 mix = chip->mixer_data;
1035                 if (snd_BUG_ON(!mix))
1036                         return;
1037                 mix->auto_mute_notify = do_notify;
1038                 schedule_work(&device_change);
1039         }
1040 }
1041 #endif /* PMAC_SUPPORT_AUTOMUTE */
1042
1043
1044 /* interrupt - headphone plug changed */
1045 static irqreturn_t headphone_intr(int irq, void *devid)
1046 {
1047         struct snd_pmac *chip = devid;
1048         if (chip->update_automute && chip->initialized) {
1049                 chip->update_automute(chip, 1);
1050                 return IRQ_HANDLED;
1051         }
1052         return IRQ_NONE;
1053 }
1054
1055 /* look for audio-gpio device */
1056 static struct device_node *find_audio_device(const char *name)
1057 {
1058         struct device_node *gpiop;
1059         struct device_node *np;
1060   
1061         gpiop = of_find_node_by_name(NULL, "gpio");
1062         if (! gpiop)
1063                 return NULL;
1064   
1065         for (np = of_get_next_child(gpiop, NULL); np;
1066                         np = of_get_next_child(gpiop, np)) {
1067                 const char *property = of_get_property(np, "audio-gpio", NULL);
1068                 if (property && strcmp(property, name) == 0)
1069                         break;
1070         }  
1071         of_node_put(gpiop);
1072         return np;
1073 }
1074
1075 /* look for audio-gpio device */
1076 static struct device_node *find_compatible_audio_device(const char *name)
1077 {
1078         struct device_node *gpiop;
1079         struct device_node *np;
1080   
1081         gpiop = of_find_node_by_name(NULL, "gpio");
1082         if (!gpiop)
1083                 return NULL;
1084   
1085         for (np = of_get_next_child(gpiop, NULL); np;
1086                         np = of_get_next_child(gpiop, np)) {
1087                 if (of_device_is_compatible(np, name))
1088                         break;
1089         }  
1090         of_node_put(gpiop);
1091         return np;
1092 }
1093
1094 /* find an audio device and get its address */
1095 static long tumbler_find_device(const char *device, const char *platform,
1096                                 struct pmac_gpio *gp, int is_compatible)
1097 {
1098         struct device_node *node;
1099         const u32 *base;
1100         u32 addr;
1101         long ret;
1102
1103         if (is_compatible)
1104                 node = find_compatible_audio_device(device);
1105         else
1106                 node = find_audio_device(device);
1107         if (! node) {
1108                 DBG("(W) cannot find audio device %s !\n", device);
1109                 snd_printdd("cannot find device %s\n", device);
1110                 return -ENODEV;
1111         }
1112
1113         base = of_get_property(node, "AAPL,address", NULL);
1114         if (! base) {
1115                 base = of_get_property(node, "reg", NULL);
1116                 if (!base) {
1117                         DBG("(E) cannot find address for device %s !\n", device);
1118                         snd_printd("cannot find address for device %s\n", device);
1119                         of_node_put(node);
1120                         return -ENODEV;
1121                 }
1122                 addr = *base;
1123                 if (addr < 0x50)
1124                         addr += 0x50;
1125         } else
1126                 addr = *base;
1127
1128         gp->addr = addr & 0x0000ffff;
1129         /* Try to find the active state, default to 0 ! */
1130         base = of_get_property(node, "audio-gpio-active-state", NULL);
1131         if (base) {
1132                 gp->active_state = *base;
1133                 gp->active_val = (*base) ? 0x5 : 0x4;
1134                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1135         } else {
1136                 const u32 *prop = NULL;
1137                 gp->active_state = 0;
1138                 gp->active_val = 0x4;
1139                 gp->inactive_val = 0x5;
1140                 /* Here are some crude hacks to extract the GPIO polarity and
1141                  * open collector informations out of the do-platform script
1142                  * as we don't yet have an interpreter for these things
1143                  */
1144                 if (platform)
1145                         prop = of_get_property(node, platform, NULL);
1146                 if (prop) {
1147                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1148                                 gp->active_val = 0xd;
1149                                 gp->inactive_val = 0xc;
1150                         }
1151                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1152                                 gp->active_val = 0x5;
1153                                 gp->inactive_val = 0x4;
1154                         }
1155                 }
1156         }
1157
1158         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1159             device, gp->addr, gp->active_state);
1160
1161         ret = irq_of_parse_and_map(node, 0);
1162         of_node_put(node);
1163         return ret;
1164 }
1165
1166 /* reset audio */
1167 static void tumbler_reset_audio(struct snd_pmac *chip)
1168 {
1169         struct pmac_tumbler *mix = chip->mixer_data;
1170
1171         if (mix->anded_reset) {
1172                 DBG("(I) codec anded reset !\n");
1173                 write_audio_gpio(&mix->hp_mute, 0);
1174                 write_audio_gpio(&mix->amp_mute, 0);
1175                 msleep(200);
1176                 write_audio_gpio(&mix->hp_mute, 1);
1177                 write_audio_gpio(&mix->amp_mute, 1);
1178                 msleep(100);
1179                 write_audio_gpio(&mix->hp_mute, 0);
1180                 write_audio_gpio(&mix->amp_mute, 0);
1181                 msleep(100);
1182         } else {
1183                 DBG("(I) codec normal reset !\n");
1184
1185                 write_audio_gpio(&mix->audio_reset, 0);
1186                 msleep(200);
1187                 write_audio_gpio(&mix->audio_reset, 1);
1188                 msleep(100);
1189                 write_audio_gpio(&mix->audio_reset, 0);
1190                 msleep(100);
1191         }
1192 }
1193
1194 #ifdef CONFIG_PM
1195 /* suspend mixer */
1196 static void tumbler_suspend(struct snd_pmac *chip)
1197 {
1198         struct pmac_tumbler *mix = chip->mixer_data;
1199
1200         if (mix->headphone_irq >= 0)
1201                 disable_irq(mix->headphone_irq);
1202         if (mix->lineout_irq >= 0)
1203                 disable_irq(mix->lineout_irq);
1204         mix->save_master_switch[0] = mix->master_switch[0];
1205         mix->save_master_switch[1] = mix->master_switch[1];
1206         mix->save_master_vol[0] = mix->master_vol[0];
1207         mix->save_master_vol[1] = mix->master_vol[1];
1208         mix->master_switch[0] = mix->master_switch[1] = 0;
1209         tumbler_set_master_volume(mix);
1210         if (!mix->anded_reset) {
1211                 write_audio_gpio(&mix->amp_mute, 1);
1212                 write_audio_gpio(&mix->hp_mute, 1);
1213         }
1214         if (chip->model == PMAC_SNAPPER) {
1215                 mix->acs |= 1;
1216                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1217         }
1218         if (mix->anded_reset) {
1219                 write_audio_gpio(&mix->amp_mute, 1);
1220                 write_audio_gpio(&mix->hp_mute, 1);
1221         } else
1222                 write_audio_gpio(&mix->audio_reset, 1);
1223 }
1224
1225 /* resume mixer */
1226 static void tumbler_resume(struct snd_pmac *chip)
1227 {
1228         struct pmac_tumbler *mix = chip->mixer_data;
1229
1230         mix->acs &= ~1;
1231         mix->master_switch[0] = mix->save_master_switch[0];
1232         mix->master_switch[1] = mix->save_master_switch[1];
1233         mix->master_vol[0] = mix->save_master_vol[0];
1234         mix->master_vol[1] = mix->save_master_vol[1];
1235         tumbler_reset_audio(chip);
1236         if (mix->i2c.client && mix->i2c.init_client) {
1237                 if (mix->i2c.init_client(&mix->i2c) < 0)
1238                         printk(KERN_ERR "tumbler_init_client error\n");
1239         } else
1240                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1241         if (chip->model == PMAC_TUMBLER) {
1242                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1243                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1244                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1245                 tumbler_set_drc(mix);
1246         } else {
1247                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1248                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1249                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1250                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1251                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1252                 snapper_set_drc(mix);
1253                 snapper_set_capture_source(mix);
1254         }
1255         tumbler_set_master_volume(mix);
1256         if (chip->update_automute)
1257                 chip->update_automute(chip, 0);
1258         if (mix->headphone_irq >= 0) {
1259                 unsigned char val;
1260
1261                 enable_irq(mix->headphone_irq);
1262                 /* activate headphone status interrupts */
1263                 val = do_gpio_read(&mix->hp_detect);
1264                 do_gpio_write(&mix->hp_detect, val | 0x80);
1265         }
1266         if (mix->lineout_irq >= 0)
1267                 enable_irq(mix->lineout_irq);
1268 }
1269 #endif
1270
1271 /* initialize tumbler */
1272 static int __devinit tumbler_init(struct snd_pmac *chip)
1273 {
1274         int irq;
1275         struct pmac_tumbler *mix = chip->mixer_data;
1276
1277         if (tumbler_find_device("audio-hw-reset",
1278                                 "platform-do-hw-reset",
1279                                 &mix->audio_reset, 0) < 0)
1280                 tumbler_find_device("hw-reset",
1281                                     "platform-do-hw-reset",
1282                                     &mix->audio_reset, 1);
1283         if (tumbler_find_device("amp-mute",
1284                                 "platform-do-amp-mute",
1285                                 &mix->amp_mute, 0) < 0)
1286                 tumbler_find_device("amp-mute",
1287                                     "platform-do-amp-mute",
1288                                     &mix->amp_mute, 1);
1289         if (tumbler_find_device("headphone-mute",
1290                                 "platform-do-headphone-mute",
1291                                 &mix->hp_mute, 0) < 0)
1292                 tumbler_find_device("headphone-mute",
1293                                     "platform-do-headphone-mute",
1294                                     &mix->hp_mute, 1);
1295         if (tumbler_find_device("line-output-mute",
1296                                 "platform-do-lineout-mute",
1297                                 &mix->line_mute, 0) < 0)
1298                 tumbler_find_device("line-output-mute",
1299                                    "platform-do-lineout-mute",
1300                                     &mix->line_mute, 1);
1301         irq = tumbler_find_device("headphone-detect",
1302                                   NULL, &mix->hp_detect, 0);
1303         if (irq <= NO_IRQ)
1304                 irq = tumbler_find_device("headphone-detect",
1305                                           NULL, &mix->hp_detect, 1);
1306         if (irq <= NO_IRQ)
1307                 irq = tumbler_find_device("keywest-gpio15",
1308                                           NULL, &mix->hp_detect, 1);
1309         mix->headphone_irq = irq;
1310         irq = tumbler_find_device("line-output-detect",
1311                                   NULL, &mix->line_detect, 0);
1312         if (irq <= NO_IRQ)
1313                 irq = tumbler_find_device("line-output-detect",
1314                                           NULL, &mix->line_detect, 1);
1315         mix->lineout_irq = irq;
1316
1317         tumbler_reset_audio(chip);
1318   
1319         return 0;
1320 }
1321
1322 static void tumbler_cleanup(struct snd_pmac *chip)
1323 {
1324         struct pmac_tumbler *mix = chip->mixer_data;
1325         if (! mix)
1326                 return;
1327
1328         if (mix->headphone_irq >= 0)
1329                 free_irq(mix->headphone_irq, chip);
1330         if (mix->lineout_irq >= 0)
1331                 free_irq(mix->lineout_irq, chip);
1332         tumbler_gpio_free(&mix->audio_reset);
1333         tumbler_gpio_free(&mix->amp_mute);
1334         tumbler_gpio_free(&mix->hp_mute);
1335         tumbler_gpio_free(&mix->hp_detect);
1336         snd_pmac_keywest_cleanup(&mix->i2c);
1337         kfree(mix);
1338         chip->mixer_data = NULL;
1339 }
1340
1341 /* exported */
1342 int __devinit snd_pmac_tumbler_init(struct snd_pmac *chip)
1343 {
1344         int i, err;
1345         struct pmac_tumbler *mix;
1346         const u32 *paddr;
1347         struct device_node *tas_node, *np;
1348         char *chipname;
1349
1350         request_module("i2c-powermac");
1351
1352         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1353         if (! mix)
1354                 return -ENOMEM;
1355         mix->headphone_irq = -1;
1356
1357         chip->mixer_data = mix;
1358         chip->mixer_free = tumbler_cleanup;
1359         mix->anded_reset = 0;
1360         mix->reset_on_sleep = 1;
1361
1362         for (np = chip->node->child; np; np = np->sibling) {
1363                 if (!strcmp(np->name, "sound")) {
1364                         if (of_get_property(np, "has-anded-reset", NULL))
1365                                 mix->anded_reset = 1;
1366                         if (of_get_property(np, "layout-id", NULL))
1367                                 mix->reset_on_sleep = 0;
1368                         break;
1369                 }
1370         }
1371         if ((err = tumbler_init(chip)) < 0)
1372                 return err;
1373
1374         /* set up TAS */
1375         tas_node = of_find_node_by_name(NULL, "deq");
1376         if (tas_node == NULL)
1377                 tas_node = of_find_node_by_name(NULL, "codec");
1378         if (tas_node == NULL)
1379                 return -ENODEV;
1380
1381         paddr = of_get_property(tas_node, "i2c-address", NULL);
1382         if (paddr == NULL)
1383                 paddr = of_get_property(tas_node, "reg", NULL);
1384         if (paddr)
1385                 mix->i2c.addr = (*paddr) >> 1;
1386         else
1387                 mix->i2c.addr = TAS_I2C_ADDR;
1388         of_node_put(tas_node);
1389
1390         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1391
1392         if (chip->model == PMAC_TUMBLER) {
1393                 mix->i2c.init_client = tumbler_init_client;
1394                 mix->i2c.name = "TAS3001c";
1395                 chipname = "Tumbler";
1396         } else {
1397                 mix->i2c.init_client = snapper_init_client;
1398                 mix->i2c.name = "TAS3004";
1399                 chipname = "Snapper";
1400         }
1401
1402         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1403                 return err;
1404
1405         /*
1406          * build mixers
1407          */
1408         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1409
1410         if (chip->model == PMAC_TUMBLER) {
1411                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1412                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1413                                 return err;
1414                 }
1415         } else {
1416                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1417                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1418                                 return err;
1419                 }
1420         }
1421         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1422         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1423                 return err;
1424         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1425         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1426                 return err;
1427         if (mix->line_mute.addr != 0) {
1428                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1429                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1430                         return err;
1431         }
1432         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1433         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1434                 return err;
1435
1436         /* set initial DRC range to 60% */
1437         if (chip->model == PMAC_TUMBLER)
1438                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1439         else
1440                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1441         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1442         if (chip->model == PMAC_TUMBLER)
1443                 tumbler_set_drc(mix);
1444         else
1445                 snapper_set_drc(mix);
1446
1447 #ifdef CONFIG_PM
1448         chip->suspend = tumbler_suspend;
1449         chip->resume = tumbler_resume;
1450 #endif
1451
1452         INIT_WORK(&device_change, device_change_handler);
1453         device_change_chip = chip;
1454
1455 #ifdef PMAC_SUPPORT_AUTOMUTE
1456         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1457             && (err = snd_pmac_add_automute(chip)) < 0)
1458                 return err;
1459         chip->detect_headphone = tumbler_detect_headphone;
1460         chip->update_automute = tumbler_update_automute;
1461         tumbler_update_automute(chip, 0); /* update the status only */
1462
1463         /* activate headphone status interrupts */
1464         if (mix->headphone_irq >= 0) {
1465                 unsigned char val;
1466                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1467                                        "Sound Headphone Detection", chip)) < 0)
1468                         return 0;
1469                 /* activate headphone status interrupts */
1470                 val = do_gpio_read(&mix->hp_detect);
1471                 do_gpio_write(&mix->hp_detect, val | 0x80);
1472         }
1473         if (mix->lineout_irq >= 0) {
1474                 unsigned char val;
1475                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1476                                        "Sound Lineout Detection", chip)) < 0)
1477                         return 0;
1478                 /* activate headphone status interrupts */
1479                 val = do_gpio_read(&mix->line_detect);
1480                 do_gpio_write(&mix->line_detect, val | 0x80);
1481         }
1482 #endif
1483
1484         return 0;
1485 }