009df8dd37a8483a10987b948ecd3329dd1e556c
[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         snd_assert(mix, return -ENODEV);
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         snd_assert(mix, return -ENODEV);
281         vol[0] = ucontrol->value.integer.value[0];
282         vol[1] = ucontrol->value.integer.value[1];
283         if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
284             vol[1] >= ARRAY_SIZE(master_volume_table))
285                 return -EINVAL;
286         change = mix->master_vol[0] != vol[0] ||
287                 mix->master_vol[1] != vol[1];
288         if (change) {
289                 mix->master_vol[0] = vol[0];
290                 mix->master_vol[1] = vol[1];
291                 tumbler_set_master_volume(mix);
292         }
293         return change;
294 }
295
296 /* output switch */
297 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
298                                      struct snd_ctl_elem_value *ucontrol)
299 {
300         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
301         struct pmac_tumbler *mix = chip->mixer_data;
302         snd_assert(mix, return -ENODEV);
303         ucontrol->value.integer.value[0] = mix->master_switch[0];
304         ucontrol->value.integer.value[1] = mix->master_switch[1];
305         return 0;
306 }
307
308 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
309                                      struct snd_ctl_elem_value *ucontrol)
310 {
311         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
312         struct pmac_tumbler *mix = chip->mixer_data;
313         int change;
314
315         snd_assert(mix, return -ENODEV);
316         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
317                 mix->master_switch[1] != ucontrol->value.integer.value[1];
318         if (change) {
319                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
320                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
321                 tumbler_set_master_volume(mix);
322         }
323         return change;
324 }
325
326
327 /*
328  * TAS3001c dynamic range compression
329  */
330
331 #define TAS3001_DRC_MAX         0x5f
332
333 static int tumbler_set_drc(struct pmac_tumbler *mix)
334 {
335         unsigned char val[2];
336
337         if (! mix->i2c.client)
338                 return -ENODEV;
339   
340         if (mix->drc_enable) {
341                 val[0] = 0xc1; /* enable, 3:1 compression */
342                 if (mix->drc_range > TAS3001_DRC_MAX)
343                         val[1] = 0xf0;
344                 else if (mix->drc_range < 0)
345                         val[1] = 0x91;
346                 else
347                         val[1] = mix->drc_range + 0x91;
348         } else {
349                 val[0] = 0;
350                 val[1] = 0;
351         }
352
353         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
354                                            2, val) < 0) {
355                 snd_printk("failed to set DRC\n");
356                 return -EINVAL;
357         }
358         return 0;
359 }
360
361 /*
362  * TAS3004
363  */
364
365 #define TAS3004_DRC_MAX         0xef
366
367 static int snapper_set_drc(struct pmac_tumbler *mix)
368 {
369         unsigned char val[6];
370
371         if (! mix->i2c.client)
372                 return -ENODEV;
373   
374         if (mix->drc_enable)
375                 val[0] = 0x50; /* 3:1 above threshold */
376         else
377                 val[0] = 0x51; /* disabled */
378         val[1] = 0x02; /* 1:1 below threshold */
379         if (mix->drc_range > 0xef)
380                 val[2] = 0xef;
381         else if (mix->drc_range < 0)
382                 val[2] = 0x00;
383         else
384                 val[2] = mix->drc_range;
385         val[3] = 0xb0;
386         val[4] = 0x60;
387         val[5] = 0xa0;
388
389         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
390                                            6, val) < 0) {
391                 snd_printk("failed to set DRC\n");
392                 return -EINVAL;
393         }
394         return 0;
395 }
396
397 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
398                                   struct snd_ctl_elem_info *uinfo)
399 {
400         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
401         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
402         uinfo->count = 1;
403         uinfo->value.integer.min = 0;
404         uinfo->value.integer.max =
405                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
406         return 0;
407 }
408
409 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
410                                  struct snd_ctl_elem_value *ucontrol)
411 {
412         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
413         struct pmac_tumbler *mix;
414         if (! (mix = chip->mixer_data))
415                 return -ENODEV;
416         ucontrol->value.integer.value[0] = mix->drc_range;
417         return 0;
418 }
419
420 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
421                                  struct snd_ctl_elem_value *ucontrol)
422 {
423         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
424         struct pmac_tumbler *mix;
425         unsigned int val;
426         int change;
427
428         if (! (mix = chip->mixer_data))
429                 return -ENODEV;
430         val = ucontrol->value.integer.value[0];
431         if (chip->model == PMAC_TUMBLER) {
432                 if (val > TAS3001_DRC_MAX)
433                         return -EINVAL;
434         } else {
435                 if (val > TAS3004_DRC_MAX)
436                         return -EINVAL;
437         }
438         change = mix->drc_range != val;
439         if (change) {
440                 mix->drc_range = val;
441                 if (chip->model == PMAC_TUMBLER)
442                         tumbler_set_drc(mix);
443                 else
444                         snapper_set_drc(mix);
445         }
446         return change;
447 }
448
449 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
450                                   struct snd_ctl_elem_value *ucontrol)
451 {
452         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
453         struct pmac_tumbler *mix;
454         if (! (mix = chip->mixer_data))
455                 return -ENODEV;
456         ucontrol->value.integer.value[0] = mix->drc_enable;
457         return 0;
458 }
459
460 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
461                                   struct snd_ctl_elem_value *ucontrol)
462 {
463         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
464         struct pmac_tumbler *mix;
465         int change;
466
467         if (! (mix = chip->mixer_data))
468                 return -ENODEV;
469         change = mix->drc_enable != ucontrol->value.integer.value[0];
470         if (change) {
471                 mix->drc_enable = !!ucontrol->value.integer.value[0];
472                 if (chip->model == PMAC_TUMBLER)
473                         tumbler_set_drc(mix);
474                 else
475                         snapper_set_drc(mix);
476         }
477         return change;
478 }
479
480
481 /*
482  * mono volumes
483  */
484
485 struct tumbler_mono_vol {
486         int index;
487         int reg;
488         int bytes;
489         unsigned int max;
490         unsigned int *table;
491 };
492
493 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
494                                    struct tumbler_mono_vol *info)
495 {
496         unsigned char block[4];
497         unsigned int vol;
498         int i;
499   
500         if (! mix->i2c.client)
501                 return -ENODEV;
502   
503         vol = mix->mono_vol[info->index];
504         if (vol >= info->max)
505                 vol = info->max - 1;
506         vol = info->table[vol];
507         for (i = 0; i < info->bytes; i++)
508                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
509         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
510                                            info->bytes, block) < 0) {
511                 snd_printk("failed to set mono volume %d\n", info->index);
512                 return -EINVAL;
513         }
514         return 0;
515 }
516
517 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
518                              struct snd_ctl_elem_info *uinfo)
519 {
520         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
521
522         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
523         uinfo->count = 1;
524         uinfo->value.integer.min = 0;
525         uinfo->value.integer.max = info->max - 1;
526         return 0;
527 }
528
529 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
530                             struct snd_ctl_elem_value *ucontrol)
531 {
532         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
533         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
534         struct pmac_tumbler *mix;
535         if (! (mix = chip->mixer_data))
536                 return -ENODEV;
537         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
538         return 0;
539 }
540
541 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
542                             struct snd_ctl_elem_value *ucontrol)
543 {
544         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
545         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
546         struct pmac_tumbler *mix;
547         unsigned int vol;
548         int change;
549
550         if (! (mix = chip->mixer_data))
551                 return -ENODEV;
552         vol = ucontrol->value.integer.value[0];
553         if (vol >= info->max)
554                 return -EINVAL;
555         change = mix->mono_vol[info->index] != vol;
556         if (change) {
557                 mix->mono_vol[info->index] = vol;
558                 tumbler_set_mono_volume(mix, info);
559         }
560         return change;
561 }
562
563 /* TAS3001c mono volumes */
564 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
565         .index = VOL_IDX_PCM_MONO,
566         .reg = TAS_REG_PCM,
567         .bytes = 3,
568         .max = ARRAY_SIZE(mixer_volume_table),
569         .table = mixer_volume_table,
570 };
571
572 static struct tumbler_mono_vol tumbler_bass_vol_info = {
573         .index = VOL_IDX_BASS,
574         .reg = TAS_REG_BASS,
575         .bytes = 1,
576         .max = ARRAY_SIZE(bass_volume_table),
577         .table = bass_volume_table,
578 };
579
580 static struct tumbler_mono_vol tumbler_treble_vol_info = {
581         .index = VOL_IDX_TREBLE,
582         .reg = TAS_REG_TREBLE,
583         .bytes = 1,
584         .max = ARRAY_SIZE(treble_volume_table),
585         .table = treble_volume_table,
586 };
587
588 /* TAS3004 mono volumes */
589 static struct tumbler_mono_vol snapper_bass_vol_info = {
590         .index = VOL_IDX_BASS,
591         .reg = TAS_REG_BASS,
592         .bytes = 1,
593         .max = ARRAY_SIZE(snapper_bass_volume_table),
594         .table = snapper_bass_volume_table,
595 };
596
597 static struct tumbler_mono_vol snapper_treble_vol_info = {
598         .index = VOL_IDX_TREBLE,
599         .reg = TAS_REG_TREBLE,
600         .bytes = 1,
601         .max = ARRAY_SIZE(snapper_treble_volume_table),
602         .table = snapper_treble_volume_table,
603 };
604
605
606 #define DEFINE_MONO(xname,type) { \
607         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
608         .name = xname, \
609         .info = tumbler_info_mono, \
610         .get = tumbler_get_mono, \
611         .put = tumbler_put_mono, \
612         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
613 }
614
615 #define DEFINE_SNAPPER_MONO(xname,type) { \
616         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
617         .name = xname, \
618         .info = tumbler_info_mono, \
619         .get = tumbler_get_mono, \
620         .put = tumbler_put_mono, \
621         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
622 }
623
624
625 /*
626  * snapper mixer volumes
627  */
628
629 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
630 {
631         int i, j, vol;
632         unsigned char block[9];
633
634         vol = mix->mix_vol[idx][ch];
635         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
636                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
637                 mix->mix_vol[idx][ch] = vol;
638         }
639
640         for (i = 0; i < 3; i++) {
641                 vol = mix->mix_vol[i][ch];
642                 vol = mixer_volume_table[vol];
643                 for (j = 0; j < 3; j++)
644                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
645         }
646         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
647                                            9, block) < 0) {
648                 snd_printk("failed to set mono volume %d\n", reg);
649                 return -EINVAL;
650         }
651         return 0;
652 }
653
654 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
655 {
656         if (! mix->i2c.client)
657                 return -ENODEV;
658         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
659             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
660                 return -EINVAL;
661         return 0;
662 }
663
664 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
665                             struct snd_ctl_elem_info *uinfo)
666 {
667         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
668         uinfo->count = 2;
669         uinfo->value.integer.min = 0;
670         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
671         return 0;
672 }
673
674 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
675                            struct snd_ctl_elem_value *ucontrol)
676 {
677         int idx = (int)kcontrol->private_value;
678         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
679         struct pmac_tumbler *mix;
680         if (! (mix = chip->mixer_data))
681                 return -ENODEV;
682         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
683         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
684         return 0;
685 }
686
687 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
688                            struct snd_ctl_elem_value *ucontrol)
689 {
690         int idx = (int)kcontrol->private_value;
691         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
692         struct pmac_tumbler *mix;
693         unsigned int vol[2];
694         int change;
695
696         if (! (mix = chip->mixer_data))
697                 return -ENODEV;
698         vol[0] = ucontrol->value.integer.value[0];
699         vol[1] = ucontrol->value.integer.value[1];
700         if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
701             vol[1] >= ARRAY_SIZE(mixer_volume_table))
702                 return -EINVAL;
703         change = mix->mix_vol[idx][0] != vol[0] ||
704                 mix->mix_vol[idx][1] != vol[1];
705         if (change) {
706                 mix->mix_vol[idx][0] = vol[0];
707                 mix->mix_vol[idx][1] = vol[1];
708                 snapper_set_mix_vol(mix, idx);
709         }
710         return change;
711 }
712
713
714 /*
715  * mute switches. FIXME: Turn that into software mute when both outputs are muted
716  * to avoid codec reset on ibook M7
717  */
718
719 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
720
721 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
722                                    struct snd_ctl_elem_value *ucontrol)
723 {
724         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
725         struct pmac_tumbler *mix;
726         struct pmac_gpio *gp;
727         if (! (mix = chip->mixer_data))
728                 return -ENODEV;
729         switch(kcontrol->private_value) {
730         case TUMBLER_MUTE_HP:
731                 gp = &mix->hp_mute;     break;
732         case TUMBLER_MUTE_AMP:
733                 gp = &mix->amp_mute;    break;
734         case TUMBLER_MUTE_LINE:
735                 gp = &mix->line_mute;   break;
736         default:
737                 gp = NULL;
738         }
739         if (gp == NULL)
740                 return -EINVAL;
741         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
742         return 0;
743 }
744
745 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
746                                    struct snd_ctl_elem_value *ucontrol)
747 {
748         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
749         struct pmac_tumbler *mix;
750         struct pmac_gpio *gp;
751         int val;
752 #ifdef PMAC_SUPPORT_AUTOMUTE
753         if (chip->update_automute && chip->auto_mute)
754                 return 0; /* don't touch in the auto-mute mode */
755 #endif  
756         if (! (mix = chip->mixer_data))
757                 return -ENODEV;
758         switch(kcontrol->private_value) {
759         case TUMBLER_MUTE_HP:
760                 gp = &mix->hp_mute;     break;
761         case TUMBLER_MUTE_AMP:
762                 gp = &mix->amp_mute;    break;
763         case TUMBLER_MUTE_LINE:
764                 gp = &mix->line_mute;   break;
765         default:
766                 gp = NULL;
767         }
768         if (gp == NULL)
769                 return -EINVAL;
770         val = ! check_audio_gpio(gp);
771         if (val != ucontrol->value.integer.value[0]) {
772                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
773                 return 1;
774         }
775         return 0;
776 }
777
778 static int snapper_set_capture_source(struct pmac_tumbler *mix)
779 {
780         if (! mix->i2c.client)
781                 return -ENODEV;
782         if (mix->capture_source)
783                 mix->acs = mix->acs |= 2;
784         else
785                 mix->acs &= ~2;
786         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
787 }
788
789 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
790                                        struct snd_ctl_elem_info *uinfo)
791 {
792         static char *texts[2] = {
793                 "Line", "Mic"
794         };
795         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
796         uinfo->count = 1;
797         uinfo->value.enumerated.items = 2;
798         if (uinfo->value.enumerated.item > 1)
799                 uinfo->value.enumerated.item = 1;
800         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
801         return 0;
802 }
803
804 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
805                                       struct snd_ctl_elem_value *ucontrol)
806 {
807         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
808         struct pmac_tumbler *mix = chip->mixer_data;
809
810         snd_assert(mix, return -ENODEV);
811         ucontrol->value.enumerated.item[0] = mix->capture_source;
812         return 0;
813 }
814
815 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
816                                       struct snd_ctl_elem_value *ucontrol)
817 {
818         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
819         struct pmac_tumbler *mix = chip->mixer_data;
820         int change;
821
822         snd_assert(mix, return -ENODEV);
823         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
824         if (change) {
825                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
826                 snapper_set_capture_source(mix);
827         }
828         return change;
829 }
830
831 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
832         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
833         .name = xname, \
834         .info = snapper_info_mix, \
835         .get = snapper_get_mix, \
836         .put = snapper_put_mix, \
837         .index = idx,\
838         .private_value = ofs, \
839 }
840
841
842 /*
843  */
844 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
845         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
846           .name = "Master Playback Volume",
847           .info = tumbler_info_master_volume,
848           .get = tumbler_get_master_volume,
849           .put = tumbler_put_master_volume
850         },
851         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
852           .name = "Master Playback Switch",
853           .info = snd_pmac_boolean_stereo_info,
854           .get = tumbler_get_master_switch,
855           .put = tumbler_put_master_switch
856         },
857         DEFINE_MONO("Tone Control - Bass", bass),
858         DEFINE_MONO("Tone Control - Treble", treble),
859         DEFINE_MONO("PCM Playback Volume", pcm),
860         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
861           .name = "DRC Range",
862           .info = tumbler_info_drc_value,
863           .get = tumbler_get_drc_value,
864           .put = tumbler_put_drc_value
865         },
866 };
867
868 static struct snd_kcontrol_new snapper_mixers[] __initdata = {
869         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
870           .name = "Master Playback Volume",
871           .info = tumbler_info_master_volume,
872           .get = tumbler_get_master_volume,
873           .put = tumbler_put_master_volume
874         },
875         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
876           .name = "Master Playback Switch",
877           .info = snd_pmac_boolean_stereo_info,
878           .get = tumbler_get_master_switch,
879           .put = tumbler_put_master_switch
880         },
881         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
882         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
883         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
884         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
885         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
886         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
887           .name = "DRC Range",
888           .info = tumbler_info_drc_value,
889           .get = tumbler_get_drc_value,
890           .put = tumbler_put_drc_value
891         },
892         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
893           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
894           .info = snapper_info_capture_source,
895           .get = snapper_get_capture_source,
896           .put = snapper_put_capture_source
897         },
898 };
899
900 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
901         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
902         .name = "Headphone Playback Switch",
903         .info = snd_pmac_boolean_mono_info,
904         .get = tumbler_get_mute_switch,
905         .put = tumbler_put_mute_switch,
906         .private_value = TUMBLER_MUTE_HP,
907 };
908 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
909         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
910         .name = "PC Speaker Playback Switch",
911         .info = snd_pmac_boolean_mono_info,
912         .get = tumbler_get_mute_switch,
913         .put = tumbler_put_mute_switch,
914         .private_value = TUMBLER_MUTE_AMP,
915 };
916 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
917         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
918         .name = "Line Out Playback Switch",
919         .info = snd_pmac_boolean_mono_info,
920         .get = tumbler_get_mute_switch,
921         .put = tumbler_put_mute_switch,
922         .private_value = TUMBLER_MUTE_LINE,
923 };
924 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
925         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
926         .name = "DRC Switch",
927         .info = snd_pmac_boolean_mono_info,
928         .get = tumbler_get_drc_switch,
929         .put = tumbler_put_drc_switch
930 };
931
932
933 #ifdef PMAC_SUPPORT_AUTOMUTE
934 /*
935  * auto-mute stuffs
936  */
937 static int tumbler_detect_headphone(struct snd_pmac *chip)
938 {
939         struct pmac_tumbler *mix = chip->mixer_data;
940         int detect = 0;
941
942         if (mix->hp_detect.addr)
943                 detect |= read_audio_gpio(&mix->hp_detect);
944         return detect;
945 }
946
947 static int tumbler_detect_lineout(struct snd_pmac *chip)
948 {
949         struct pmac_tumbler *mix = chip->mixer_data;
950         int detect = 0;
951
952         if (mix->line_detect.addr)
953                 detect |= read_audio_gpio(&mix->line_detect);
954         return detect;
955 }
956
957 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
958                        struct snd_kcontrol *sw)
959 {
960         if (check_audio_gpio(gp) != val) {
961                 write_audio_gpio(gp, val);
962                 if (do_notify)
963                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
964                                        &sw->id);
965         }
966 }
967
968 static struct work_struct device_change;
969 static struct snd_pmac *device_change_chip;
970
971 static void device_change_handler(struct work_struct *work)
972 {
973         struct snd_pmac *chip = device_change_chip;
974         struct pmac_tumbler *mix;
975         int headphone, lineout;
976
977         if (!chip)
978                 return;
979
980         mix = chip->mixer_data;
981         snd_assert(mix, return);
982
983         headphone = tumbler_detect_headphone(chip);
984         lineout = tumbler_detect_lineout(chip);
985
986         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
987
988         if (headphone || lineout) {
989                 /* unmute headphone/lineout & mute speaker */
990                 if (headphone)
991                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
992                                    chip->master_sw_ctl);
993                 if (lineout && mix->line_mute.addr != 0)
994                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
995                                    chip->lineout_sw_ctl);
996                 if (mix->anded_reset)
997                         msleep(10);
998                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
999                            chip->speaker_sw_ctl);
1000         } else {
1001                 /* unmute speaker, mute others */
1002                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1003                            chip->speaker_sw_ctl);
1004                 if (mix->anded_reset)
1005                         msleep(10);
1006                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1007                            chip->master_sw_ctl);
1008                 if (mix->line_mute.addr != 0)
1009                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1010                                    chip->lineout_sw_ctl);
1011         }
1012         if (mix->auto_mute_notify)
1013                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1014                                        &chip->hp_detect_ctl->id);
1015
1016 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1017         mix->drc_enable = ! (headphone || lineout);
1018         if (mix->auto_mute_notify)
1019                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1020                                &chip->drc_sw_ctl->id);
1021         if (chip->model == PMAC_TUMBLER)
1022                 tumbler_set_drc(mix);
1023         else
1024                 snapper_set_drc(mix);
1025 #endif
1026
1027         /* reset the master volume so the correct amplification is applied */
1028         tumbler_set_master_volume(mix);
1029 }
1030
1031 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1032 {
1033         if (chip->auto_mute) {
1034                 struct pmac_tumbler *mix;
1035                 mix = chip->mixer_data;
1036                 snd_assert(mix, 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         snd_assert(mix, return);
1231
1232         mix->acs &= ~1;
1233         mix->master_switch[0] = mix->save_master_switch[0];
1234         mix->master_switch[1] = mix->save_master_switch[1];
1235         mix->master_vol[0] = mix->save_master_vol[0];
1236         mix->master_vol[1] = mix->save_master_vol[1];
1237         tumbler_reset_audio(chip);
1238         if (mix->i2c.client && mix->i2c.init_client) {
1239                 if (mix->i2c.init_client(&mix->i2c) < 0)
1240                         printk(KERN_ERR "tumbler_init_client error\n");
1241         } else
1242                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1243         if (chip->model == PMAC_TUMBLER) {
1244                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1245                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1246                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1247                 tumbler_set_drc(mix);
1248         } else {
1249                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1250                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1251                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1252                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1253                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1254                 snapper_set_drc(mix);
1255                 snapper_set_capture_source(mix);
1256         }
1257         tumbler_set_master_volume(mix);
1258         if (chip->update_automute)
1259                 chip->update_automute(chip, 0);
1260         if (mix->headphone_irq >= 0) {
1261                 unsigned char val;
1262
1263                 enable_irq(mix->headphone_irq);
1264                 /* activate headphone status interrupts */
1265                 val = do_gpio_read(&mix->hp_detect);
1266                 do_gpio_write(&mix->hp_detect, val | 0x80);
1267         }
1268         if (mix->lineout_irq >= 0)
1269                 enable_irq(mix->lineout_irq);
1270 }
1271 #endif
1272
1273 /* initialize tumbler */
1274 static int __init tumbler_init(struct snd_pmac *chip)
1275 {
1276         int irq;
1277         struct pmac_tumbler *mix = chip->mixer_data;
1278         snd_assert(mix, return -EINVAL);
1279
1280         if (tumbler_find_device("audio-hw-reset",
1281                                 "platform-do-hw-reset",
1282                                 &mix->audio_reset, 0) < 0)
1283                 tumbler_find_device("hw-reset",
1284                                     "platform-do-hw-reset",
1285                                     &mix->audio_reset, 1);
1286         if (tumbler_find_device("amp-mute",
1287                                 "platform-do-amp-mute",
1288                                 &mix->amp_mute, 0) < 0)
1289                 tumbler_find_device("amp-mute",
1290                                     "platform-do-amp-mute",
1291                                     &mix->amp_mute, 1);
1292         if (tumbler_find_device("headphone-mute",
1293                                 "platform-do-headphone-mute",
1294                                 &mix->hp_mute, 0) < 0)
1295                 tumbler_find_device("headphone-mute",
1296                                     "platform-do-headphone-mute",
1297                                     &mix->hp_mute, 1);
1298         if (tumbler_find_device("line-output-mute",
1299                                 "platform-do-lineout-mute",
1300                                 &mix->line_mute, 0) < 0)
1301                 tumbler_find_device("line-output-mute",
1302                                    "platform-do-lineout-mute",
1303                                     &mix->line_mute, 1);
1304         irq = tumbler_find_device("headphone-detect",
1305                                   NULL, &mix->hp_detect, 0);
1306         if (irq <= NO_IRQ)
1307                 irq = tumbler_find_device("headphone-detect",
1308                                           NULL, &mix->hp_detect, 1);
1309         if (irq <= NO_IRQ)
1310                 irq = tumbler_find_device("keywest-gpio15",
1311                                           NULL, &mix->hp_detect, 1);
1312         mix->headphone_irq = irq;
1313         irq = tumbler_find_device("line-output-detect",
1314                                   NULL, &mix->line_detect, 0);
1315         if (irq <= NO_IRQ)
1316                 irq = tumbler_find_device("line-output-detect",
1317                                           NULL, &mix->line_detect, 1);
1318         mix->lineout_irq = irq;
1319
1320         tumbler_reset_audio(chip);
1321   
1322         return 0;
1323 }
1324
1325 static void tumbler_cleanup(struct snd_pmac *chip)
1326 {
1327         struct pmac_tumbler *mix = chip->mixer_data;
1328         if (! mix)
1329                 return;
1330
1331         if (mix->headphone_irq >= 0)
1332                 free_irq(mix->headphone_irq, chip);
1333         if (mix->lineout_irq >= 0)
1334                 free_irq(mix->lineout_irq, chip);
1335         tumbler_gpio_free(&mix->audio_reset);
1336         tumbler_gpio_free(&mix->amp_mute);
1337         tumbler_gpio_free(&mix->hp_mute);
1338         tumbler_gpio_free(&mix->hp_detect);
1339         snd_pmac_keywest_cleanup(&mix->i2c);
1340         kfree(mix);
1341         chip->mixer_data = NULL;
1342 }
1343
1344 /* exported */
1345 int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
1346 {
1347         int i, err;
1348         struct pmac_tumbler *mix;
1349         const u32 *paddr;
1350         struct device_node *tas_node, *np;
1351         char *chipname;
1352
1353         request_module("i2c-powermac");
1354
1355         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1356         if (! mix)
1357                 return -ENOMEM;
1358         mix->headphone_irq = -1;
1359
1360         chip->mixer_data = mix;
1361         chip->mixer_free = tumbler_cleanup;
1362         mix->anded_reset = 0;
1363         mix->reset_on_sleep = 1;
1364
1365         for (np = chip->node->child; np; np = np->sibling) {
1366                 if (!strcmp(np->name, "sound")) {
1367                         if (of_get_property(np, "has-anded-reset", NULL))
1368                                 mix->anded_reset = 1;
1369                         if (of_get_property(np, "layout-id", NULL))
1370                                 mix->reset_on_sleep = 0;
1371                         break;
1372                 }
1373         }
1374         if ((err = tumbler_init(chip)) < 0)
1375                 return err;
1376
1377         /* set up TAS */
1378         tas_node = of_find_node_by_name(NULL, "deq");
1379         if (tas_node == NULL)
1380                 tas_node = of_find_node_by_name(NULL, "codec");
1381         if (tas_node == NULL)
1382                 return -ENODEV;
1383
1384         paddr = of_get_property(tas_node, "i2c-address", NULL);
1385         if (paddr == NULL)
1386                 paddr = of_get_property(tas_node, "reg", NULL);
1387         if (paddr)
1388                 mix->i2c.addr = (*paddr) >> 1;
1389         else
1390                 mix->i2c.addr = TAS_I2C_ADDR;
1391         of_node_put(tas_node);
1392
1393         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1394
1395         if (chip->model == PMAC_TUMBLER) {
1396                 mix->i2c.init_client = tumbler_init_client;
1397                 mix->i2c.name = "TAS3001c";
1398                 chipname = "Tumbler";
1399         } else {
1400                 mix->i2c.init_client = snapper_init_client;
1401                 mix->i2c.name = "TAS3004";
1402                 chipname = "Snapper";
1403         }
1404
1405         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1406                 return err;
1407
1408         /*
1409          * build mixers
1410          */
1411         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1412
1413         if (chip->model == PMAC_TUMBLER) {
1414                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1415                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1416                                 return err;
1417                 }
1418         } else {
1419                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1420                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1421                                 return err;
1422                 }
1423         }
1424         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1425         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1426                 return err;
1427         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1428         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1429                 return err;
1430         if (mix->line_mute.addr != 0) {
1431                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1432                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1433                         return err;
1434         }
1435         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1436         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1437                 return err;
1438
1439         /* set initial DRC range to 60% */
1440         if (chip->model == PMAC_TUMBLER)
1441                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1442         else
1443                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1444         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1445         if (chip->model == PMAC_TUMBLER)
1446                 tumbler_set_drc(mix);
1447         else
1448                 snapper_set_drc(mix);
1449
1450 #ifdef CONFIG_PM
1451         chip->suspend = tumbler_suspend;
1452         chip->resume = tumbler_resume;
1453 #endif
1454
1455         INIT_WORK(&device_change, device_change_handler);
1456         device_change_chip = chip;
1457
1458 #ifdef PMAC_SUPPORT_AUTOMUTE
1459         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1460             && (err = snd_pmac_add_automute(chip)) < 0)
1461                 return err;
1462         chip->detect_headphone = tumbler_detect_headphone;
1463         chip->update_automute = tumbler_update_automute;
1464         tumbler_update_automute(chip, 0); /* update the status only */
1465
1466         /* activate headphone status interrupts */
1467         if (mix->headphone_irq >= 0) {
1468                 unsigned char val;
1469                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1470                                        "Sound Headphone Detection", chip)) < 0)
1471                         return 0;
1472                 /* activate headphone status interrupts */
1473                 val = do_gpio_read(&mix->hp_detect);
1474                 do_gpio_write(&mix->hp_detect, val | 0x80);
1475         }
1476         if (mix->lineout_irq >= 0) {
1477                 unsigned char val;
1478                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1479                                        "Sound Lineout Detection", chip)) < 0)
1480                         return 0;
1481                 /* activate headphone status interrupts */
1482                 val = do_gpio_read(&mix->line_detect);
1483                 do_gpio_write(&mix->line_detect, val | 0x80);
1484         }
1485 #endif
1486
1487         return 0;
1488 }