[PATCH] v9fs: fix corner cases when flushing request
[linux-2.6.git] / sound / ppc / tumbler.c
1 /*
2  * PMac Tumbler/Snapper lowlevel functions
3  *
4  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  *   Rene Rebe <rene.rebe@gmx.net>:
21  *     * update from shadow registers on wakeup and headphone plug
22  *     * automatically toggle DRC on headphone plug
23  *      
24  */
25
26
27 #include <sound/driver.h>
28 #include <linux/init.h>
29 #include <linux/delay.h>
30 #include <linux/i2c.h>
31 #include <linux/i2c-dev.h>
32 #include <linux/kmod.h>
33 #include <linux/slab.h>
34 #include <linux/interrupt.h>
35 #include <sound/core.h>
36 #include <asm/io.h>
37 #include <asm/irq.h>
38 #include <asm/machdep.h>
39 #include <asm/pmac_feature.h>
40 #include "pmac.h"
41 #include "tumbler_volume.h"
42
43 #undef DEBUG
44
45 #ifdef DEBUG
46 #define DBG(fmt...) printk(fmt)
47 #else
48 #define DBG(fmt...)
49 #endif
50
51 /* i2c address for tumbler */
52 #define TAS_I2C_ADDR    0x34
53
54 /* registers */
55 #define TAS_REG_MCS     0x01    /* main control */
56 #define TAS_REG_DRC     0x02
57 #define TAS_REG_VOL     0x04
58 #define TAS_REG_TREBLE  0x05
59 #define TAS_REG_BASS    0x06
60 #define TAS_REG_INPUT1  0x07
61 #define TAS_REG_INPUT2  0x08
62
63 /* tas3001c */
64 #define TAS_REG_PCM     TAS_REG_INPUT1
65  
66 /* tas3004 */
67 #define TAS_REG_LMIX    TAS_REG_INPUT1
68 #define TAS_REG_RMIX    TAS_REG_INPUT2
69 #define TAS_REG_MCS2    0x43            /* main control 2 */
70 #define TAS_REG_ACS     0x40            /* analog control */
71
72 /* mono volumes for tas3001c/tas3004 */
73 enum {
74         VOL_IDX_PCM_MONO, /* tas3001c only */
75         VOL_IDX_BASS, VOL_IDX_TREBLE,
76         VOL_IDX_LAST_MONO
77 };
78
79 /* stereo volumes for tas3004 */
80 enum {
81         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
82         VOL_IDX_LAST_MIX
83 };
84
85 struct pmac_gpio {
86         unsigned int addr;
87         u8 active_val;
88         u8 inactive_val;
89         u8 active_state;
90 };
91
92 struct pmac_tumbler {
93         struct pmac_keywest i2c;
94         struct pmac_gpio audio_reset;
95         struct pmac_gpio amp_mute;
96         struct pmac_gpio line_mute;
97         struct pmac_gpio line_detect;
98         struct pmac_gpio hp_mute;
99         struct pmac_gpio hp_detect;
100         int headphone_irq;
101         int lineout_irq;
102         unsigned int save_master_vol[2];
103         unsigned int master_vol[2];
104         unsigned int save_master_switch[2];
105         unsigned int master_switch[2];
106         unsigned int mono_vol[VOL_IDX_LAST_MONO];
107         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
108         int drc_range;
109         int drc_enable;
110         int capture_source;
111         int anded_reset;
112         int auto_mute_notify;
113         int reset_on_sleep;
114         u8  acs;
115 };
116
117
118 /*
119  */
120
121 static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
122 {
123         while (*regs > 0) {
124                 int err, count = 10;
125                 do {
126                         err = i2c_smbus_write_byte_data(i2c->client,
127                                                         regs[0], regs[1]);
128                         if (err >= 0)
129                                 break;
130                         DBG("(W) i2c error %d\n", err);
131                         mdelay(10);
132                 } while (count--);
133                 if (err < 0)
134                         return -ENXIO;
135                 regs += 2;
136         }
137         return 0;
138 }
139
140
141 static int tumbler_init_client(struct pmac_keywest *i2c)
142 {
143         static unsigned int regs[] = {
144                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
145                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
146                 0, /* terminator */
147         };
148         DBG("(I) tumbler init client\n");
149         return send_init_client(i2c, regs);
150 }
151
152 static int snapper_init_client(struct pmac_keywest *i2c)
153 {
154         static unsigned int regs[] = {
155                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
156                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
157                 /* normal operation, all-pass mode */
158                 TAS_REG_MCS2, (1<<1),
159                 /* normal output, no deemphasis, A input, power-up, line-in */
160                 TAS_REG_ACS, 0,
161                 0, /* terminator */
162         };
163         DBG("(I) snapper init client\n");
164         return send_init_client(i2c, regs);
165 }
166         
167 /*
168  * gpio access
169  */
170 #define do_gpio_write(gp, val) \
171         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
172 #define do_gpio_read(gp) \
173         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
174 #define tumbler_gpio_free(gp) /* NOP */
175
176 static void write_audio_gpio(struct pmac_gpio *gp, int active)
177 {
178         if (! gp->addr)
179                 return;
180         active = active ? gp->active_val : gp->inactive_val;
181         do_gpio_write(gp, active);
182         DBG("(I) gpio %x write %d\n", gp->addr, active);
183 }
184
185 static int check_audio_gpio(struct pmac_gpio *gp)
186 {
187         int ret;
188
189         if (! gp->addr)
190                 return 0;
191
192         ret = do_gpio_read(gp);
193
194         return (ret & 0xd) == (gp->active_val & 0xd);
195 }
196
197 static int read_audio_gpio(struct pmac_gpio *gp)
198 {
199         int ret;
200         if (! gp->addr)
201                 return 0;
202         ret = ((do_gpio_read(gp) & 0x02) !=0);
203         return ret == gp->active_state;
204 }
205
206 /*
207  * update master volume
208  */
209 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
210 {
211         unsigned char block[6];
212         unsigned int left_vol, right_vol;
213   
214         if (! mix->i2c.client)
215                 return -ENODEV;
216   
217         if (! mix->master_switch[0])
218                 left_vol = 0;
219         else {
220                 left_vol = mix->master_vol[0];
221                 if (left_vol >= ARRAY_SIZE(master_volume_table))
222                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
223                 left_vol = master_volume_table[left_vol];
224         }
225         if (! mix->master_switch[1])
226                 right_vol = 0;
227         else {
228                 right_vol = mix->master_vol[1];
229                 if (right_vol >= ARRAY_SIZE(master_volume_table))
230                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
231                 right_vol = master_volume_table[right_vol];
232         }
233
234         block[0] = (left_vol >> 16) & 0xff;
235         block[1] = (left_vol >> 8)  & 0xff;
236         block[2] = (left_vol >> 0)  & 0xff;
237
238         block[3] = (right_vol >> 16) & 0xff;
239         block[4] = (right_vol >> 8)  & 0xff;
240         block[5] = (right_vol >> 0)  & 0xff;
241   
242         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_VOL,
243                                        6, block) < 0) {
244                 snd_printk("failed to set volume \n");
245                 return -EINVAL;
246         }
247         return 0;
248 }
249
250
251 /* output volume */
252 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
253                                       struct snd_ctl_elem_info *uinfo)
254 {
255         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
256         uinfo->count = 2;
257         uinfo->value.integer.min = 0;
258         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
259         return 0;
260 }
261
262 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
263                                      struct snd_ctl_elem_value *ucontrol)
264 {
265         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
266         struct pmac_tumbler *mix = chip->mixer_data;
267         snd_assert(mix, return -ENODEV);
268         ucontrol->value.integer.value[0] = mix->master_vol[0];
269         ucontrol->value.integer.value[1] = mix->master_vol[1];
270         return 0;
271 }
272
273 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
274                                      struct snd_ctl_elem_value *ucontrol)
275 {
276         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
277         struct pmac_tumbler *mix = chip->mixer_data;
278         int change;
279
280         snd_assert(mix, return -ENODEV);
281         change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
282                 mix->master_vol[1] != ucontrol->value.integer.value[1];
283         if (change) {
284                 mix->master_vol[0] = ucontrol->value.integer.value[0];
285                 mix->master_vol[1] = ucontrol->value.integer.value[1];
286                 tumbler_set_master_volume(mix);
287         }
288         return change;
289 }
290
291 /* output switch */
292 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
293                                      struct snd_ctl_elem_value *ucontrol)
294 {
295         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
296         struct pmac_tumbler *mix = chip->mixer_data;
297         snd_assert(mix, return -ENODEV);
298         ucontrol->value.integer.value[0] = mix->master_switch[0];
299         ucontrol->value.integer.value[1] = mix->master_switch[1];
300         return 0;
301 }
302
303 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
304                                      struct snd_ctl_elem_value *ucontrol)
305 {
306         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
307         struct pmac_tumbler *mix = chip->mixer_data;
308         int change;
309
310         snd_assert(mix, return -ENODEV);
311         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
312                 mix->master_switch[1] != ucontrol->value.integer.value[1];
313         if (change) {
314                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
315                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
316                 tumbler_set_master_volume(mix);
317         }
318         return change;
319 }
320
321
322 /*
323  * TAS3001c dynamic range compression
324  */
325
326 #define TAS3001_DRC_MAX         0x5f
327
328 static int tumbler_set_drc(struct pmac_tumbler *mix)
329 {
330         unsigned char val[2];
331
332         if (! mix->i2c.client)
333                 return -ENODEV;
334   
335         if (mix->drc_enable) {
336                 val[0] = 0xc1; /* enable, 3:1 compression */
337                 if (mix->drc_range > TAS3001_DRC_MAX)
338                         val[1] = 0xf0;
339                 else if (mix->drc_range < 0)
340                         val[1] = 0x91;
341                 else
342                         val[1] = mix->drc_range + 0x91;
343         } else {
344                 val[0] = 0;
345                 val[1] = 0;
346         }
347
348         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
349                                        2, val) < 0) {
350                 snd_printk("failed to set DRC\n");
351                 return -EINVAL;
352         }
353         return 0;
354 }
355
356 /*
357  * TAS3004
358  */
359
360 #define TAS3004_DRC_MAX         0xef
361
362 static int snapper_set_drc(struct pmac_tumbler *mix)
363 {
364         unsigned char val[6];
365
366         if (! mix->i2c.client)
367                 return -ENODEV;
368   
369         if (mix->drc_enable)
370                 val[0] = 0x50; /* 3:1 above threshold */
371         else
372                 val[0] = 0x51; /* disabled */
373         val[1] = 0x02; /* 1:1 below threshold */
374         if (mix->drc_range > 0xef)
375                 val[2] = 0xef;
376         else if (mix->drc_range < 0)
377                 val[2] = 0x00;
378         else
379                 val[2] = mix->drc_range;
380         val[3] = 0xb0;
381         val[4] = 0x60;
382         val[5] = 0xa0;
383
384         if (i2c_smbus_write_block_data(mix->i2c.client, TAS_REG_DRC,
385                                        6, val) < 0) {
386                 snd_printk("failed to set DRC\n");
387                 return -EINVAL;
388         }
389         return 0;
390 }
391
392 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
393                                   struct snd_ctl_elem_info *uinfo)
394 {
395         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
396         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
397         uinfo->count = 1;
398         uinfo->value.integer.min = 0;
399         uinfo->value.integer.max =
400                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
401         return 0;
402 }
403
404 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
405                                  struct snd_ctl_elem_value *ucontrol)
406 {
407         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
408         struct pmac_tumbler *mix;
409         if (! (mix = chip->mixer_data))
410                 return -ENODEV;
411         ucontrol->value.integer.value[0] = mix->drc_range;
412         return 0;
413 }
414
415 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
416                                  struct snd_ctl_elem_value *ucontrol)
417 {
418         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
419         struct pmac_tumbler *mix;
420         int change;
421
422         if (! (mix = chip->mixer_data))
423                 return -ENODEV;
424         change = mix->drc_range != ucontrol->value.integer.value[0];
425         if (change) {
426                 mix->drc_range = ucontrol->value.integer.value[0];
427                 if (chip->model == PMAC_TUMBLER)
428                         tumbler_set_drc(mix);
429                 else
430                         snapper_set_drc(mix);
431         }
432         return change;
433 }
434
435 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
436                                   struct snd_ctl_elem_value *ucontrol)
437 {
438         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
439         struct pmac_tumbler *mix;
440         if (! (mix = chip->mixer_data))
441                 return -ENODEV;
442         ucontrol->value.integer.value[0] = mix->drc_enable;
443         return 0;
444 }
445
446 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
447                                   struct snd_ctl_elem_value *ucontrol)
448 {
449         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
450         struct pmac_tumbler *mix;
451         int change;
452
453         if (! (mix = chip->mixer_data))
454                 return -ENODEV;
455         change = mix->drc_enable != ucontrol->value.integer.value[0];
456         if (change) {
457                 mix->drc_enable = !!ucontrol->value.integer.value[0];
458                 if (chip->model == PMAC_TUMBLER)
459                         tumbler_set_drc(mix);
460                 else
461                         snapper_set_drc(mix);
462         }
463         return change;
464 }
465
466
467 /*
468  * mono volumes
469  */
470
471 struct tumbler_mono_vol {
472         int index;
473         int reg;
474         int bytes;
475         unsigned int max;
476         unsigned int *table;
477 };
478
479 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
480                                    struct tumbler_mono_vol *info)
481 {
482         unsigned char block[4];
483         unsigned int vol;
484         int i;
485   
486         if (! mix->i2c.client)
487                 return -ENODEV;
488   
489         vol = mix->mono_vol[info->index];
490         if (vol >= info->max)
491                 vol = info->max - 1;
492         vol = info->table[vol];
493         for (i = 0; i < info->bytes; i++)
494                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
495         if (i2c_smbus_write_block_data(mix->i2c.client, info->reg,
496                                        info->bytes, block) < 0) {
497                 snd_printk("failed to set mono volume %d\n", info->index);
498                 return -EINVAL;
499         }
500         return 0;
501 }
502
503 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
504                              struct snd_ctl_elem_info *uinfo)
505 {
506         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
507
508         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
509         uinfo->count = 1;
510         uinfo->value.integer.min = 0;
511         uinfo->value.integer.max = info->max - 1;
512         return 0;
513 }
514
515 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
516                             struct snd_ctl_elem_value *ucontrol)
517 {
518         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
519         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
520         struct pmac_tumbler *mix;
521         if (! (mix = chip->mixer_data))
522                 return -ENODEV;
523         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
524         return 0;
525 }
526
527 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
528                             struct snd_ctl_elem_value *ucontrol)
529 {
530         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
531         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
532         struct pmac_tumbler *mix;
533         int change;
534
535         if (! (mix = chip->mixer_data))
536                 return -ENODEV;
537         change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
538         if (change) {
539                 mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
540                 tumbler_set_mono_volume(mix, info);
541         }
542         return change;
543 }
544
545 /* TAS3001c mono volumes */
546 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
547         .index = VOL_IDX_PCM_MONO,
548         .reg = TAS_REG_PCM,
549         .bytes = 3,
550         .max = ARRAY_SIZE(mixer_volume_table),
551         .table = mixer_volume_table,
552 };
553
554 static struct tumbler_mono_vol tumbler_bass_vol_info = {
555         .index = VOL_IDX_BASS,
556         .reg = TAS_REG_BASS,
557         .bytes = 1,
558         .max = ARRAY_SIZE(bass_volume_table),
559         .table = bass_volume_table,
560 };
561
562 static struct tumbler_mono_vol tumbler_treble_vol_info = {
563         .index = VOL_IDX_TREBLE,
564         .reg = TAS_REG_TREBLE,
565         .bytes = 1,
566         .max = ARRAY_SIZE(treble_volume_table),
567         .table = treble_volume_table,
568 };
569
570 /* TAS3004 mono volumes */
571 static struct tumbler_mono_vol snapper_bass_vol_info = {
572         .index = VOL_IDX_BASS,
573         .reg = TAS_REG_BASS,
574         .bytes = 1,
575         .max = ARRAY_SIZE(snapper_bass_volume_table),
576         .table = snapper_bass_volume_table,
577 };
578
579 static struct tumbler_mono_vol snapper_treble_vol_info = {
580         .index = VOL_IDX_TREBLE,
581         .reg = TAS_REG_TREBLE,
582         .bytes = 1,
583         .max = ARRAY_SIZE(snapper_treble_volume_table),
584         .table = snapper_treble_volume_table,
585 };
586
587
588 #define DEFINE_MONO(xname,type) { \
589         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
590         .name = xname, \
591         .info = tumbler_info_mono, \
592         .get = tumbler_get_mono, \
593         .put = tumbler_put_mono, \
594         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
595 }
596
597 #define DEFINE_SNAPPER_MONO(xname,type) { \
598         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
599         .name = xname, \
600         .info = tumbler_info_mono, \
601         .get = tumbler_get_mono, \
602         .put = tumbler_put_mono, \
603         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
604 }
605
606
607 /*
608  * snapper mixer volumes
609  */
610
611 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
612 {
613         int i, j, vol;
614         unsigned char block[9];
615
616         vol = mix->mix_vol[idx][ch];
617         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
618                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
619                 mix->mix_vol[idx][ch] = vol;
620         }
621
622         for (i = 0; i < 3; i++) {
623                 vol = mix->mix_vol[i][ch];
624                 vol = mixer_volume_table[vol];
625                 for (j = 0; j < 3; j++)
626                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
627         }
628         if (i2c_smbus_write_block_data(mix->i2c.client, reg, 9, block) < 0) {
629                 snd_printk("failed to set mono volume %d\n", reg);
630                 return -EINVAL;
631         }
632         return 0;
633 }
634
635 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
636 {
637         if (! mix->i2c.client)
638                 return -ENODEV;
639         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
640             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
641                 return -EINVAL;
642         return 0;
643 }
644
645 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
646                             struct snd_ctl_elem_info *uinfo)
647 {
648         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
649         uinfo->count = 2;
650         uinfo->value.integer.min = 0;
651         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
652         return 0;
653 }
654
655 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
656                            struct snd_ctl_elem_value *ucontrol)
657 {
658         int idx = (int)kcontrol->private_value;
659         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
660         struct pmac_tumbler *mix;
661         if (! (mix = chip->mixer_data))
662                 return -ENODEV;
663         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
664         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
665         return 0;
666 }
667
668 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
669                            struct snd_ctl_elem_value *ucontrol)
670 {
671         int idx = (int)kcontrol->private_value;
672         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
673         struct pmac_tumbler *mix;
674         int change;
675
676         if (! (mix = chip->mixer_data))
677                 return -ENODEV;
678         change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
679                 mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
680         if (change) {
681                 mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
682                 mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
683                 snapper_set_mix_vol(mix, idx);
684         }
685         return change;
686 }
687
688
689 /*
690  * mute switches. FIXME: Turn that into software mute when both outputs are muted
691  * to avoid codec reset on ibook M7
692  */
693
694 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
695
696 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
697                                    struct snd_ctl_elem_value *ucontrol)
698 {
699         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
700         struct pmac_tumbler *mix;
701         struct pmac_gpio *gp;
702         if (! (mix = chip->mixer_data))
703                 return -ENODEV;
704         switch(kcontrol->private_value) {
705         case TUMBLER_MUTE_HP:
706                 gp = &mix->hp_mute;     break;
707         case TUMBLER_MUTE_AMP:
708                 gp = &mix->amp_mute;    break;
709         case TUMBLER_MUTE_LINE:
710                 gp = &mix->line_mute;   break;
711         default:
712                 gp = NULL;
713         }
714         if (gp == NULL)
715                 return -EINVAL;
716         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
717         return 0;
718 }
719
720 static int tumbler_put_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         int val;
727 #ifdef PMAC_SUPPORT_AUTOMUTE
728         if (chip->update_automute && chip->auto_mute)
729                 return 0; /* don't touch in the auto-mute mode */
730 #endif  
731         if (! (mix = chip->mixer_data))
732                 return -ENODEV;
733         switch(kcontrol->private_value) {
734         case TUMBLER_MUTE_HP:
735                 gp = &mix->hp_mute;     break;
736         case TUMBLER_MUTE_AMP:
737                 gp = &mix->amp_mute;    break;
738         case TUMBLER_MUTE_LINE:
739                 gp = &mix->line_mute;   break;
740         default:
741                 gp = NULL;
742         }
743         if (gp == NULL)
744                 return -EINVAL;
745         val = ! check_audio_gpio(gp);
746         if (val != ucontrol->value.integer.value[0]) {
747                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
748                 return 1;
749         }
750         return 0;
751 }
752
753 static int snapper_set_capture_source(struct pmac_tumbler *mix)
754 {
755         if (! mix->i2c.client)
756                 return -ENODEV;
757         if (mix->capture_source)
758                 mix->acs = mix->acs |= 2;
759         else
760                 mix->acs &= ~2;
761         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
762 }
763
764 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
765                                        struct snd_ctl_elem_info *uinfo)
766 {
767         static char *texts[2] = {
768                 "Line", "Mic"
769         };
770         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
771         uinfo->count = 1;
772         uinfo->value.enumerated.items = 2;
773         if (uinfo->value.enumerated.item > 1)
774                 uinfo->value.enumerated.item = 1;
775         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
776         return 0;
777 }
778
779 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
780                                       struct snd_ctl_elem_value *ucontrol)
781 {
782         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
783         struct pmac_tumbler *mix = chip->mixer_data;
784
785         snd_assert(mix, return -ENODEV);
786         ucontrol->value.integer.value[0] = mix->capture_source;
787         return 0;
788 }
789
790 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
791                                       struct snd_ctl_elem_value *ucontrol)
792 {
793         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
794         struct pmac_tumbler *mix = chip->mixer_data;
795         int change;
796
797         snd_assert(mix, return -ENODEV);
798         change = ucontrol->value.integer.value[0] != mix->capture_source;
799         if (change) {
800                 mix->capture_source = !!ucontrol->value.integer.value[0];
801                 snapper_set_capture_source(mix);
802         }
803         return change;
804 }
805
806 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
807         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
808         .name = xname, \
809         .info = snapper_info_mix, \
810         .get = snapper_get_mix, \
811         .put = snapper_put_mix, \
812         .index = idx,\
813         .private_value = ofs, \
814 }
815
816
817 /*
818  */
819 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
820         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
821           .name = "Master Playback Volume",
822           .info = tumbler_info_master_volume,
823           .get = tumbler_get_master_volume,
824           .put = tumbler_put_master_volume
825         },
826         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
827           .name = "Master Playback Switch",
828           .info = snd_pmac_boolean_stereo_info,
829           .get = tumbler_get_master_switch,
830           .put = tumbler_put_master_switch
831         },
832         DEFINE_MONO("Tone Control - Bass", bass),
833         DEFINE_MONO("Tone Control - Treble", treble),
834         DEFINE_MONO("PCM Playback Volume", pcm),
835         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
836           .name = "DRC Range",
837           .info = tumbler_info_drc_value,
838           .get = tumbler_get_drc_value,
839           .put = tumbler_put_drc_value
840         },
841 };
842
843 static struct snd_kcontrol_new snapper_mixers[] __initdata = {
844         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
845           .name = "Master Playback Volume",
846           .info = tumbler_info_master_volume,
847           .get = tumbler_get_master_volume,
848           .put = tumbler_put_master_volume
849         },
850         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
851           .name = "Master Playback Switch",
852           .info = snd_pmac_boolean_stereo_info,
853           .get = tumbler_get_master_switch,
854           .put = tumbler_put_master_switch
855         },
856         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
857         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
858         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
859         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
860         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
861         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
862           .name = "DRC Range",
863           .info = tumbler_info_drc_value,
864           .get = tumbler_get_drc_value,
865           .put = tumbler_put_drc_value
866         },
867         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
868           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
869           .info = snapper_info_capture_source,
870           .get = snapper_get_capture_source,
871           .put = snapper_put_capture_source
872         },
873 };
874
875 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
876         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
877         .name = "Headphone Playback Switch",
878         .info = snd_pmac_boolean_mono_info,
879         .get = tumbler_get_mute_switch,
880         .put = tumbler_put_mute_switch,
881         .private_value = TUMBLER_MUTE_HP,
882 };
883 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
884         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
885         .name = "PC Speaker Playback Switch",
886         .info = snd_pmac_boolean_mono_info,
887         .get = tumbler_get_mute_switch,
888         .put = tumbler_put_mute_switch,
889         .private_value = TUMBLER_MUTE_AMP,
890 };
891 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
892         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
893         .name = "Line Out Playback Switch",
894         .info = snd_pmac_boolean_mono_info,
895         .get = tumbler_get_mute_switch,
896         .put = tumbler_put_mute_switch,
897         .private_value = TUMBLER_MUTE_LINE,
898 };
899 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
900         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
901         .name = "DRC Switch",
902         .info = snd_pmac_boolean_mono_info,
903         .get = tumbler_get_drc_switch,
904         .put = tumbler_put_drc_switch
905 };
906
907
908 #ifdef PMAC_SUPPORT_AUTOMUTE
909 /*
910  * auto-mute stuffs
911  */
912 static int tumbler_detect_headphone(struct snd_pmac *chip)
913 {
914         struct pmac_tumbler *mix = chip->mixer_data;
915         int detect = 0;
916
917         if (mix->hp_detect.addr)
918                 detect |= read_audio_gpio(&mix->hp_detect);
919         return detect;
920 }
921
922 static int tumbler_detect_lineout(struct snd_pmac *chip)
923 {
924         struct pmac_tumbler *mix = chip->mixer_data;
925         int detect = 0;
926
927         if (mix->line_detect.addr)
928                 detect |= read_audio_gpio(&mix->line_detect);
929         return detect;
930 }
931
932 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
933                        struct snd_kcontrol *sw)
934 {
935         if (check_audio_gpio(gp) != val) {
936                 write_audio_gpio(gp, val);
937                 if (do_notify)
938                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
939                                        &sw->id);
940         }
941 }
942
943 static struct work_struct device_change;
944
945 static void device_change_handler(void *self)
946 {
947         struct snd_pmac *chip = self;
948         struct pmac_tumbler *mix;
949         int headphone, lineout;
950
951         if (!chip)
952                 return;
953
954         mix = chip->mixer_data;
955         snd_assert(mix, return);
956
957         headphone = tumbler_detect_headphone(chip);
958         lineout = tumbler_detect_lineout(chip);
959
960         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
961
962         if (headphone || lineout) {
963                 /* unmute headphone/lineout & mute speaker */
964                 if (headphone)
965                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
966                                    chip->master_sw_ctl);
967                 if (lineout && mix->line_mute.addr != 0)
968                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
969                                    chip->lineout_sw_ctl);
970                 if (mix->anded_reset)
971                         msleep(10);
972                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
973                            chip->speaker_sw_ctl);
974         } else {
975                 /* unmute speaker, mute others */
976                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
977                            chip->speaker_sw_ctl);
978                 if (mix->anded_reset)
979                         msleep(10);
980                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
981                            chip->master_sw_ctl);
982                 if (mix->line_mute.addr != 0)
983                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
984                                    chip->lineout_sw_ctl);
985         }
986         if (mix->auto_mute_notify)
987                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
988                                        &chip->hp_detect_ctl->id);
989
990 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
991         mix->drc_enable = ! (headphone || lineout);
992         if (mix->auto_mute_notify)
993                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
994                                &chip->drc_sw_ctl->id);
995         if (chip->model == PMAC_TUMBLER)
996                 tumbler_set_drc(mix);
997         else
998                 snapper_set_drc(mix);
999 #endif
1000
1001         /* reset the master volume so the correct amplification is applied */
1002         tumbler_set_master_volume(mix);
1003 }
1004
1005 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1006 {
1007         if (chip->auto_mute) {
1008                 struct pmac_tumbler *mix;
1009                 mix = chip->mixer_data;
1010                 snd_assert(mix, return);
1011                 mix->auto_mute_notify = do_notify;
1012                 schedule_work(&device_change);
1013         }
1014 }
1015 #endif /* PMAC_SUPPORT_AUTOMUTE */
1016
1017
1018 /* interrupt - headphone plug changed */
1019 static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
1020 {
1021         struct snd_pmac *chip = devid;
1022         if (chip->update_automute && chip->initialized) {
1023                 chip->update_automute(chip, 1);
1024                 return IRQ_HANDLED;
1025         }
1026         return IRQ_NONE;
1027 }
1028
1029 /* look for audio-gpio device */
1030 static struct device_node *find_audio_device(const char *name)
1031 {
1032         struct device_node *np;
1033   
1034         if (! (np = find_devices("gpio")))
1035                 return NULL;
1036   
1037         for (np = np->child; np; np = np->sibling) {
1038                 char *property = get_property(np, "audio-gpio", NULL);
1039                 if (property && strcmp(property, name) == 0)
1040                         return np;
1041         }  
1042         return NULL;
1043 }
1044
1045 /* look for audio-gpio device */
1046 static struct device_node *find_compatible_audio_device(const char *name)
1047 {
1048         struct device_node *np;
1049   
1050         if (! (np = find_devices("gpio")))
1051                 return NULL;
1052   
1053         for (np = np->child; np; np = np->sibling) {
1054                 if (device_is_compatible(np, name))
1055                         return np;
1056         }  
1057         return NULL;
1058 }
1059
1060 /* find an audio device and get its address */
1061 static long tumbler_find_device(const char *device, const char *platform,
1062                                 struct pmac_gpio *gp, int is_compatible)
1063 {
1064         struct device_node *node;
1065         u32 *base, addr;
1066
1067         if (is_compatible)
1068                 node = find_compatible_audio_device(device);
1069         else
1070                 node = find_audio_device(device);
1071         if (! node) {
1072                 DBG("(W) cannot find audio device %s !\n", device);
1073                 snd_printdd("cannot find device %s\n", device);
1074                 return -ENODEV;
1075         }
1076
1077         base = (u32 *)get_property(node, "AAPL,address", NULL);
1078         if (! base) {
1079                 base = (u32 *)get_property(node, "reg", NULL);
1080                 if (!base) {
1081                         DBG("(E) cannot find address for device %s !\n", device);
1082                         snd_printd("cannot find address for device %s\n", device);
1083                         return -ENODEV;
1084                 }
1085                 addr = *base;
1086                 if (addr < 0x50)
1087                         addr += 0x50;
1088         } else
1089                 addr = *base;
1090
1091         gp->addr = addr & 0x0000ffff;
1092         /* Try to find the active state, default to 0 ! */
1093         base = (u32 *)get_property(node, "audio-gpio-active-state", NULL);
1094         if (base) {
1095                 gp->active_state = *base;
1096                 gp->active_val = (*base) ? 0x5 : 0x4;
1097                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1098         } else {
1099                 u32 *prop = NULL;
1100                 gp->active_state = 0;
1101                 gp->active_val = 0x4;
1102                 gp->inactive_val = 0x5;
1103                 /* Here are some crude hacks to extract the GPIO polarity and
1104                  * open collector informations out of the do-platform script
1105                  * as we don't yet have an interpreter for these things
1106                  */
1107                 if (platform)
1108                         prop = (u32 *)get_property(node, platform, NULL);
1109                 if (prop) {
1110                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1111                                 gp->active_val = 0xd;
1112                                 gp->inactive_val = 0xc;
1113                         }
1114                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1115                                 gp->active_val = 0x5;
1116                                 gp->inactive_val = 0x4;
1117                         }
1118                 }
1119         }
1120
1121         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1122             device, gp->addr, gp->active_state);
1123
1124         return (node->n_intrs > 0) ? node->intrs[0].line : 0;
1125 }
1126
1127 /* reset audio */
1128 static void tumbler_reset_audio(struct snd_pmac *chip)
1129 {
1130         struct pmac_tumbler *mix = chip->mixer_data;
1131
1132         if (mix->anded_reset) {
1133                 DBG("(I) codec anded reset !\n");
1134                 write_audio_gpio(&mix->hp_mute, 0);
1135                 write_audio_gpio(&mix->amp_mute, 0);
1136                 msleep(200);
1137                 write_audio_gpio(&mix->hp_mute, 1);
1138                 write_audio_gpio(&mix->amp_mute, 1);
1139                 msleep(100);
1140                 write_audio_gpio(&mix->hp_mute, 0);
1141                 write_audio_gpio(&mix->amp_mute, 0);
1142                 msleep(100);
1143         } else {
1144                 DBG("(I) codec normal reset !\n");
1145
1146                 write_audio_gpio(&mix->audio_reset, 0);
1147                 msleep(200);
1148                 write_audio_gpio(&mix->audio_reset, 1);
1149                 msleep(100);
1150                 write_audio_gpio(&mix->audio_reset, 0);
1151                 msleep(100);
1152         }
1153 }
1154
1155 #ifdef CONFIG_PM
1156 /* suspend mixer */
1157 static void tumbler_suspend(struct snd_pmac *chip)
1158 {
1159         struct pmac_tumbler *mix = chip->mixer_data;
1160
1161         if (mix->headphone_irq >= 0)
1162                 disable_irq(mix->headphone_irq);
1163         if (mix->lineout_irq >= 0)
1164                 disable_irq(mix->lineout_irq);
1165         mix->save_master_switch[0] = mix->master_switch[0];
1166         mix->save_master_switch[1] = mix->master_switch[1];
1167         mix->save_master_vol[0] = mix->master_vol[0];
1168         mix->save_master_vol[1] = mix->master_vol[1];
1169         mix->master_switch[0] = mix->master_switch[1] = 0;
1170         tumbler_set_master_volume(mix);
1171         if (!mix->anded_reset) {
1172                 write_audio_gpio(&mix->amp_mute, 1);
1173                 write_audio_gpio(&mix->hp_mute, 1);
1174         }
1175         if (chip->model == PMAC_SNAPPER) {
1176                 mix->acs |= 1;
1177                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1178         }
1179         if (mix->anded_reset) {
1180                 write_audio_gpio(&mix->amp_mute, 1);
1181                 write_audio_gpio(&mix->hp_mute, 1);
1182         } else
1183                 write_audio_gpio(&mix->audio_reset, 1);
1184 }
1185
1186 /* resume mixer */
1187 static void tumbler_resume(struct snd_pmac *chip)
1188 {
1189         struct pmac_tumbler *mix = chip->mixer_data;
1190
1191         snd_assert(mix, return);
1192
1193         mix->acs &= ~1;
1194         mix->master_switch[0] = mix->save_master_switch[0];
1195         mix->master_switch[1] = mix->save_master_switch[1];
1196         mix->master_vol[0] = mix->save_master_vol[0];
1197         mix->master_vol[1] = mix->save_master_vol[1];
1198         tumbler_reset_audio(chip);
1199         if (mix->i2c.client && mix->i2c.init_client) {
1200                 if (mix->i2c.init_client(&mix->i2c) < 0)
1201                         printk(KERN_ERR "tumbler_init_client error\n");
1202         } else
1203                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1204         if (chip->model == PMAC_TUMBLER) {
1205                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1206                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1207                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1208                 tumbler_set_drc(mix);
1209         } else {
1210                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1211                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1212                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1213                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1214                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1215                 snapper_set_drc(mix);
1216                 snapper_set_capture_source(mix);
1217         }
1218         tumbler_set_master_volume(mix);
1219         if (chip->update_automute)
1220                 chip->update_automute(chip, 0);
1221         if (mix->headphone_irq >= 0) {
1222                 unsigned char val;
1223
1224                 enable_irq(mix->headphone_irq);
1225                 /* activate headphone status interrupts */
1226                 val = do_gpio_read(&mix->hp_detect);
1227                 do_gpio_write(&mix->hp_detect, val | 0x80);
1228         }
1229         if (mix->lineout_irq >= 0)
1230                 enable_irq(mix->lineout_irq);
1231 }
1232 #endif
1233
1234 /* initialize tumbler */
1235 static int __init tumbler_init(struct snd_pmac *chip)
1236 {
1237         int irq;
1238         struct pmac_tumbler *mix = chip->mixer_data;
1239         snd_assert(mix, return -EINVAL);
1240
1241         if (tumbler_find_device("audio-hw-reset",
1242                                 "platform-do-hw-reset",
1243                                 &mix->audio_reset, 0) < 0)
1244                 tumbler_find_device("hw-reset",
1245                                     "platform-do-hw-reset",
1246                                     &mix->audio_reset, 1);
1247         if (tumbler_find_device("amp-mute",
1248                                 "platform-do-amp-mute",
1249                                 &mix->amp_mute, 0) < 0)
1250                 tumbler_find_device("amp-mute",
1251                                     "platform-do-amp-mute",
1252                                     &mix->amp_mute, 1);
1253         if (tumbler_find_device("headphone-mute",
1254                                 "platform-do-headphone-mute",
1255                                 &mix->hp_mute, 0) < 0)
1256                 tumbler_find_device("headphone-mute",
1257                                     "platform-do-headphone-mute",
1258                                     &mix->hp_mute, 1);
1259         if (tumbler_find_device("line-output-mute",
1260                                 "platform-do-lineout-mute",
1261                                 &mix->line_mute, 0) < 0)
1262                 tumbler_find_device("line-output-mute",
1263                                    "platform-do-lineout-mute",
1264                                     &mix->line_mute, 1);
1265         irq = tumbler_find_device("headphone-detect",
1266                                   NULL, &mix->hp_detect, 0);
1267         if (irq < 0)
1268                 irq = tumbler_find_device("headphone-detect",
1269                                           NULL, &mix->hp_detect, 1);
1270         if (irq < 0)
1271                 irq = tumbler_find_device("keywest-gpio15",
1272                                           NULL, &mix->hp_detect, 1);
1273         mix->headphone_irq = irq;
1274         irq = tumbler_find_device("line-output-detect",
1275                                   NULL, &mix->line_detect, 0);
1276         if (irq < 0)
1277                 irq = tumbler_find_device("line-output-detect",
1278                                           NULL, &mix->line_detect, 1);
1279         mix->lineout_irq = irq;
1280
1281         tumbler_reset_audio(chip);
1282   
1283         return 0;
1284 }
1285
1286 static void tumbler_cleanup(struct snd_pmac *chip)
1287 {
1288         struct pmac_tumbler *mix = chip->mixer_data;
1289         if (! mix)
1290                 return;
1291
1292         if (mix->headphone_irq >= 0)
1293                 free_irq(mix->headphone_irq, chip);
1294         if (mix->lineout_irq >= 0)
1295                 free_irq(mix->lineout_irq, chip);
1296         tumbler_gpio_free(&mix->audio_reset);
1297         tumbler_gpio_free(&mix->amp_mute);
1298         tumbler_gpio_free(&mix->hp_mute);
1299         tumbler_gpio_free(&mix->hp_detect);
1300         snd_pmac_keywest_cleanup(&mix->i2c);
1301         kfree(mix);
1302         chip->mixer_data = NULL;
1303 }
1304
1305 /* exported */
1306 int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
1307 {
1308         int i, err;
1309         struct pmac_tumbler *mix;
1310         u32 *paddr;
1311         struct device_node *tas_node, *np;
1312         char *chipname;
1313
1314 #ifdef CONFIG_KMOD
1315         if (current->fs->root)
1316                 request_module("i2c-keywest");
1317 #endif /* CONFIG_KMOD */        
1318
1319         mix = kmalloc(sizeof(*mix), GFP_KERNEL);
1320         if (! mix)
1321                 return -ENOMEM;
1322         memset(mix, 0, sizeof(*mix));
1323         mix->headphone_irq = -1;
1324
1325         chip->mixer_data = mix;
1326         chip->mixer_free = tumbler_cleanup;
1327         mix->anded_reset = 0;
1328         mix->reset_on_sleep = 1;
1329
1330         for (np = chip->node->child; np; np = np->sibling) {
1331                 if (!strcmp(np->name, "sound")) {
1332                         if (get_property(np, "has-anded-reset", NULL))
1333                                 mix->anded_reset = 1;
1334                         if (get_property(np, "layout-id", NULL))
1335                                 mix->reset_on_sleep = 0;
1336                         break;
1337                 }
1338         }
1339         if ((err = tumbler_init(chip)) < 0)
1340                 return err;
1341
1342         /* set up TAS */
1343         tas_node = find_devices("deq");
1344         if (tas_node == NULL)
1345                 tas_node = find_devices("codec");
1346         if (tas_node == NULL)
1347                 return -ENODEV;
1348
1349         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
1350         if (paddr == NULL)
1351                 paddr = (u32 *)get_property(tas_node, "reg", NULL);
1352         if (paddr)
1353                 mix->i2c.addr = (*paddr) >> 1;
1354         else
1355                 mix->i2c.addr = TAS_I2C_ADDR;
1356
1357         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1358
1359         if (chip->model == PMAC_TUMBLER) {
1360                 mix->i2c.init_client = tumbler_init_client;
1361                 mix->i2c.name = "TAS3001c";
1362                 chipname = "Tumbler";
1363         } else {
1364                 mix->i2c.init_client = snapper_init_client;
1365                 mix->i2c.name = "TAS3004";
1366                 chipname = "Snapper";
1367         }
1368
1369         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1370                 return err;
1371
1372         /*
1373          * build mixers
1374          */
1375         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1376
1377         if (chip->model == PMAC_TUMBLER) {
1378                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1379                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1380                                 return err;
1381                 }
1382         } else {
1383                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1384                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1385                                 return err;
1386                 }
1387         }
1388         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1389         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1390                 return err;
1391         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1392         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1393                 return err;
1394         if (mix->line_mute.addr != 0) {
1395                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1396                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1397                         return err;
1398         }
1399         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1400         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1401                 return err;
1402
1403         /* set initial DRC range to 60% */
1404         if (chip->model == PMAC_TUMBLER)
1405                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1406         else
1407                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1408         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1409         if (chip->model == PMAC_TUMBLER)
1410                 tumbler_set_drc(mix);
1411         else
1412                 snapper_set_drc(mix);
1413
1414 #ifdef CONFIG_PM
1415         chip->suspend = tumbler_suspend;
1416         chip->resume = tumbler_resume;
1417 #endif
1418
1419         INIT_WORK(&device_change, device_change_handler, (void *)chip);
1420
1421 #ifdef PMAC_SUPPORT_AUTOMUTE
1422         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1423             && (err = snd_pmac_add_automute(chip)) < 0)
1424                 return err;
1425         chip->detect_headphone = tumbler_detect_headphone;
1426         chip->update_automute = tumbler_update_automute;
1427         tumbler_update_automute(chip, 0); /* update the status only */
1428
1429         /* activate headphone status interrupts */
1430         if (mix->headphone_irq >= 0) {
1431                 unsigned char val;
1432                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1433                                        "Sound Headphone Detection", chip)) < 0)
1434                         return 0;
1435                 /* activate headphone status interrupts */
1436                 val = do_gpio_read(&mix->hp_detect);
1437                 do_gpio_write(&mix->hp_detect, val | 0x80);
1438         }
1439         if (mix->lineout_irq >= 0) {
1440                 unsigned char val;
1441                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1442                                        "Sound Lineout Detection", chip)) < 0)
1443                         return 0;
1444                 /* activate headphone status interrupts */
1445                 val = do_gpio_read(&mix->line_detect);
1446                 do_gpio_write(&mix->line_detect, val | 0x80);
1447         }
1448 #endif
1449
1450         return 0;
1451 }