[ALSA] [PPC,SOUND] Fix audio gpio state detection
[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/kmod.h>
32 #include <linux/slab.h>
33 #include <linux/interrupt.h>
34 #include <sound/core.h>
35 #include <asm/io.h>
36 #include <asm/irq.h>
37 #include <asm/machdep.h>
38 #include <asm/pmac_feature.h>
39 #include "pmac.h"
40 #include "tumbler_volume.h"
41
42 #undef DEBUG
43
44 #ifdef DEBUG
45 #define DBG(fmt...) printk(fmt)
46 #else
47 #define DBG(fmt...)
48 #endif
49
50 /* i2c address for tumbler */
51 #define TAS_I2C_ADDR    0x34
52
53 /* registers */
54 #define TAS_REG_MCS     0x01    /* main control */
55 #define TAS_REG_DRC     0x02
56 #define TAS_REG_VOL     0x04
57 #define TAS_REG_TREBLE  0x05
58 #define TAS_REG_BASS    0x06
59 #define TAS_REG_INPUT1  0x07
60 #define TAS_REG_INPUT2  0x08
61
62 /* tas3001c */
63 #define TAS_REG_PCM     TAS_REG_INPUT1
64  
65 /* tas3004 */
66 #define TAS_REG_LMIX    TAS_REG_INPUT1
67 #define TAS_REG_RMIX    TAS_REG_INPUT2
68 #define TAS_REG_MCS2    0x43            /* main control 2 */
69 #define TAS_REG_ACS     0x40            /* analog control */
70
71 /* mono volumes for tas3001c/tas3004 */
72 enum {
73         VOL_IDX_PCM_MONO, /* tas3001c only */
74         VOL_IDX_BASS, VOL_IDX_TREBLE,
75         VOL_IDX_LAST_MONO
76 };
77
78 /* stereo volumes for tas3004 */
79 enum {
80         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
81         VOL_IDX_LAST_MIX
82 };
83
84 struct pmac_gpio {
85         unsigned int addr;
86         u8 active_val;
87         u8 inactive_val;
88         u8 active_state;
89 };
90
91 struct pmac_tumbler {
92         struct pmac_keywest i2c;
93         struct pmac_gpio audio_reset;
94         struct pmac_gpio amp_mute;
95         struct pmac_gpio line_mute;
96         struct pmac_gpio line_detect;
97         struct pmac_gpio hp_mute;
98         struct pmac_gpio hp_detect;
99         int headphone_irq;
100         int lineout_irq;
101         unsigned int save_master_vol[2];
102         unsigned int master_vol[2];
103         unsigned int save_master_switch[2];
104         unsigned int master_switch[2];
105         unsigned int mono_vol[VOL_IDX_LAST_MONO];
106         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
107         int drc_range;
108         int drc_enable;
109         int capture_source;
110         int anded_reset;
111         int auto_mute_notify;
112         int reset_on_sleep;
113         u8  acs;
114 };
115
116
117 /*
118  */
119
120 static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
121 {
122         while (*regs > 0) {
123                 int err, count = 10;
124                 do {
125                         err = i2c_smbus_write_byte_data(i2c->client,
126                                                         regs[0], regs[1]);
127                         if (err >= 0)
128                                 break;
129                         DBG("(W) i2c error %d\n", err);
130                         mdelay(10);
131                 } while (count--);
132                 if (err < 0)
133                         return -ENXIO;
134                 regs += 2;
135         }
136         return 0;
137 }
138
139
140 static int tumbler_init_client(struct pmac_keywest *i2c)
141 {
142         static unsigned int regs[] = {
143                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
144                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
145                 0, /* terminator */
146         };
147         DBG("(I) tumbler init client\n");
148         return send_init_client(i2c, regs);
149 }
150
151 static int snapper_init_client(struct pmac_keywest *i2c)
152 {
153         static unsigned int regs[] = {
154                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
155                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
156                 /* normal operation, all-pass mode */
157                 TAS_REG_MCS2, (1<<1),
158                 /* normal output, no deemphasis, A input, power-up, line-in */
159                 TAS_REG_ACS, 0,
160                 0, /* terminator */
161         };
162         DBG("(I) snapper init client\n");
163         return send_init_client(i2c, regs);
164 }
165         
166 /*
167  * gpio access
168  */
169 #define do_gpio_write(gp, val) \
170         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
171 #define do_gpio_read(gp) \
172         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
173 #define tumbler_gpio_free(gp) /* NOP */
174
175 static void write_audio_gpio(struct pmac_gpio *gp, int active)
176 {
177         if (! gp->addr)
178                 return;
179         active = active ? gp->active_val : gp->inactive_val;
180         do_gpio_write(gp, active);
181         DBG("(I) gpio %x write %d\n", gp->addr, active);
182 }
183
184 static int check_audio_gpio(struct pmac_gpio *gp)
185 {
186         int ret;
187
188         if (! gp->addr)
189                 return 0;
190
191         ret = do_gpio_read(gp);
192
193         return (ret & 0x1) == (gp->active_val & 0x1);
194 }
195
196 static int read_audio_gpio(struct pmac_gpio *gp)
197 {
198         int ret;
199         if (! gp->addr)
200                 return 0;
201         ret = do_gpio_read(gp);
202         ret = (ret & 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_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
243                                            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_i2c_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_i2c_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_i2c_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_i2c_block_data(mix->i2c.client, reg,
629                                            9, block) < 0) {
630                 snd_printk("failed to set mono volume %d\n", reg);
631                 return -EINVAL;
632         }
633         return 0;
634 }
635
636 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
637 {
638         if (! mix->i2c.client)
639                 return -ENODEV;
640         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
641             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
642                 return -EINVAL;
643         return 0;
644 }
645
646 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
647                             struct snd_ctl_elem_info *uinfo)
648 {
649         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
650         uinfo->count = 2;
651         uinfo->value.integer.min = 0;
652         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
653         return 0;
654 }
655
656 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
657                            struct snd_ctl_elem_value *ucontrol)
658 {
659         int idx = (int)kcontrol->private_value;
660         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
661         struct pmac_tumbler *mix;
662         if (! (mix = chip->mixer_data))
663                 return -ENODEV;
664         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
665         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
666         return 0;
667 }
668
669 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
670                            struct snd_ctl_elem_value *ucontrol)
671 {
672         int idx = (int)kcontrol->private_value;
673         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
674         struct pmac_tumbler *mix;
675         int change;
676
677         if (! (mix = chip->mixer_data))
678                 return -ENODEV;
679         change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
680                 mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
681         if (change) {
682                 mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
683                 mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
684                 snapper_set_mix_vol(mix, idx);
685         }
686         return change;
687 }
688
689
690 /*
691  * mute switches. FIXME: Turn that into software mute when both outputs are muted
692  * to avoid codec reset on ibook M7
693  */
694
695 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
696
697 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
698                                    struct snd_ctl_elem_value *ucontrol)
699 {
700         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
701         struct pmac_tumbler *mix;
702         struct pmac_gpio *gp;
703         if (! (mix = chip->mixer_data))
704                 return -ENODEV;
705         switch(kcontrol->private_value) {
706         case TUMBLER_MUTE_HP:
707                 gp = &mix->hp_mute;     break;
708         case TUMBLER_MUTE_AMP:
709                 gp = &mix->amp_mute;    break;
710         case TUMBLER_MUTE_LINE:
711                 gp = &mix->line_mute;   break;
712         default:
713                 gp = NULL;
714         }
715         if (gp == NULL)
716                 return -EINVAL;
717         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
718         return 0;
719 }
720
721 static int tumbler_put_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         int val;
728 #ifdef PMAC_SUPPORT_AUTOMUTE
729         if (chip->update_automute && chip->auto_mute)
730                 return 0; /* don't touch in the auto-mute mode */
731 #endif  
732         if (! (mix = chip->mixer_data))
733                 return -ENODEV;
734         switch(kcontrol->private_value) {
735         case TUMBLER_MUTE_HP:
736                 gp = &mix->hp_mute;     break;
737         case TUMBLER_MUTE_AMP:
738                 gp = &mix->amp_mute;    break;
739         case TUMBLER_MUTE_LINE:
740                 gp = &mix->line_mute;   break;
741         default:
742                 gp = NULL;
743         }
744         if (gp == NULL)
745                 return -EINVAL;
746         val = ! check_audio_gpio(gp);
747         if (val != ucontrol->value.integer.value[0]) {
748                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
749                 return 1;
750         }
751         return 0;
752 }
753
754 static int snapper_set_capture_source(struct pmac_tumbler *mix)
755 {
756         if (! mix->i2c.client)
757                 return -ENODEV;
758         if (mix->capture_source)
759                 mix->acs = mix->acs |= 2;
760         else
761                 mix->acs &= ~2;
762         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
763 }
764
765 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
766                                        struct snd_ctl_elem_info *uinfo)
767 {
768         static char *texts[2] = {
769                 "Line", "Mic"
770         };
771         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
772         uinfo->count = 1;
773         uinfo->value.enumerated.items = 2;
774         if (uinfo->value.enumerated.item > 1)
775                 uinfo->value.enumerated.item = 1;
776         strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
777         return 0;
778 }
779
780 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
781                                       struct snd_ctl_elem_value *ucontrol)
782 {
783         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
784         struct pmac_tumbler *mix = chip->mixer_data;
785
786         snd_assert(mix, return -ENODEV);
787         ucontrol->value.integer.value[0] = mix->capture_source;
788         return 0;
789 }
790
791 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
792                                       struct snd_ctl_elem_value *ucontrol)
793 {
794         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
795         struct pmac_tumbler *mix = chip->mixer_data;
796         int change;
797
798         snd_assert(mix, return -ENODEV);
799         change = ucontrol->value.integer.value[0] != mix->capture_source;
800         if (change) {
801                 mix->capture_source = !!ucontrol->value.integer.value[0];
802                 snapper_set_capture_source(mix);
803         }
804         return change;
805 }
806
807 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
808         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
809         .name = xname, \
810         .info = snapper_info_mix, \
811         .get = snapper_get_mix, \
812         .put = snapper_put_mix, \
813         .index = idx,\
814         .private_value = ofs, \
815 }
816
817
818 /*
819  */
820 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
821         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
822           .name = "Master Playback Volume",
823           .info = tumbler_info_master_volume,
824           .get = tumbler_get_master_volume,
825           .put = tumbler_put_master_volume
826         },
827         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
828           .name = "Master Playback Switch",
829           .info = snd_pmac_boolean_stereo_info,
830           .get = tumbler_get_master_switch,
831           .put = tumbler_put_master_switch
832         },
833         DEFINE_MONO("Tone Control - Bass", bass),
834         DEFINE_MONO("Tone Control - Treble", treble),
835         DEFINE_MONO("PCM Playback Volume", pcm),
836         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
837           .name = "DRC Range",
838           .info = tumbler_info_drc_value,
839           .get = tumbler_get_drc_value,
840           .put = tumbler_put_drc_value
841         },
842 };
843
844 static struct snd_kcontrol_new snapper_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_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
858         DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
859         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
860         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
861         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
862         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
863           .name = "DRC Range",
864           .info = tumbler_info_drc_value,
865           .get = tumbler_get_drc_value,
866           .put = tumbler_put_drc_value
867         },
868         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
869           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
870           .info = snapper_info_capture_source,
871           .get = snapper_get_capture_source,
872           .put = snapper_put_capture_source
873         },
874 };
875
876 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
877         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
878         .name = "Headphone Playback Switch",
879         .info = snd_pmac_boolean_mono_info,
880         .get = tumbler_get_mute_switch,
881         .put = tumbler_put_mute_switch,
882         .private_value = TUMBLER_MUTE_HP,
883 };
884 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
885         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
886         .name = "PC Speaker Playback Switch",
887         .info = snd_pmac_boolean_mono_info,
888         .get = tumbler_get_mute_switch,
889         .put = tumbler_put_mute_switch,
890         .private_value = TUMBLER_MUTE_AMP,
891 };
892 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
893         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
894         .name = "Line Out Playback Switch",
895         .info = snd_pmac_boolean_mono_info,
896         .get = tumbler_get_mute_switch,
897         .put = tumbler_put_mute_switch,
898         .private_value = TUMBLER_MUTE_LINE,
899 };
900 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
901         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
902         .name = "DRC Switch",
903         .info = snd_pmac_boolean_mono_info,
904         .get = tumbler_get_drc_switch,
905         .put = tumbler_put_drc_switch
906 };
907
908
909 #ifdef PMAC_SUPPORT_AUTOMUTE
910 /*
911  * auto-mute stuffs
912  */
913 static int tumbler_detect_headphone(struct snd_pmac *chip)
914 {
915         struct pmac_tumbler *mix = chip->mixer_data;
916         int detect = 0;
917
918         if (mix->hp_detect.addr)
919                 detect |= read_audio_gpio(&mix->hp_detect);
920         return detect;
921 }
922
923 static int tumbler_detect_lineout(struct snd_pmac *chip)
924 {
925         struct pmac_tumbler *mix = chip->mixer_data;
926         int detect = 0;
927
928         if (mix->line_detect.addr)
929                 detect |= read_audio_gpio(&mix->line_detect);
930         return detect;
931 }
932
933 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
934                        struct snd_kcontrol *sw)
935 {
936         if (check_audio_gpio(gp) != val) {
937                 write_audio_gpio(gp, val);
938                 if (do_notify)
939                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
940                                        &sw->id);
941         }
942 }
943
944 static struct work_struct device_change;
945
946 static void device_change_handler(void *self)
947 {
948         struct snd_pmac *chip = self;
949         struct pmac_tumbler *mix;
950         int headphone, lineout;
951
952         if (!chip)
953                 return;
954
955         mix = chip->mixer_data;
956         snd_assert(mix, return);
957
958         headphone = tumbler_detect_headphone(chip);
959         lineout = tumbler_detect_lineout(chip);
960
961         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
962
963         if (headphone || lineout) {
964                 /* unmute headphone/lineout & mute speaker */
965                 if (headphone)
966                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
967                                    chip->master_sw_ctl);
968                 if (lineout && mix->line_mute.addr != 0)
969                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
970                                    chip->lineout_sw_ctl);
971                 if (mix->anded_reset)
972                         msleep(10);
973                 check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
974                            chip->speaker_sw_ctl);
975         } else {
976                 /* unmute speaker, mute others */
977                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
978                            chip->speaker_sw_ctl);
979                 if (mix->anded_reset)
980                         msleep(10);
981                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
982                            chip->master_sw_ctl);
983                 if (mix->line_mute.addr != 0)
984                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
985                                    chip->lineout_sw_ctl);
986         }
987         if (mix->auto_mute_notify)
988                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
989                                        &chip->hp_detect_ctl->id);
990
991 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
992         mix->drc_enable = ! (headphone || lineout);
993         if (mix->auto_mute_notify)
994                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
995                                &chip->drc_sw_ctl->id);
996         if (chip->model == PMAC_TUMBLER)
997                 tumbler_set_drc(mix);
998         else
999                 snapper_set_drc(mix);
1000 #endif
1001
1002         /* reset the master volume so the correct amplification is applied */
1003         tumbler_set_master_volume(mix);
1004 }
1005
1006 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1007 {
1008         if (chip->auto_mute) {
1009                 struct pmac_tumbler *mix;
1010                 mix = chip->mixer_data;
1011                 snd_assert(mix, return);
1012                 mix->auto_mute_notify = do_notify;
1013                 schedule_work(&device_change);
1014         }
1015 }
1016 #endif /* PMAC_SUPPORT_AUTOMUTE */
1017
1018
1019 /* interrupt - headphone plug changed */
1020 static irqreturn_t headphone_intr(int irq, void *devid, struct pt_regs *regs)
1021 {
1022         struct snd_pmac *chip = devid;
1023         if (chip->update_automute && chip->initialized) {
1024                 chip->update_automute(chip, 1);
1025                 return IRQ_HANDLED;
1026         }
1027         return IRQ_NONE;
1028 }
1029
1030 /* look for audio-gpio device */
1031 static struct device_node *find_audio_device(const char *name)
1032 {
1033         struct device_node *np;
1034   
1035         if (! (np = find_devices("gpio")))
1036                 return NULL;
1037   
1038         for (np = np->child; np; np = np->sibling) {
1039                 const char *property = get_property(np, "audio-gpio", NULL);
1040                 if (property && strcmp(property, name) == 0)
1041                         return np;
1042         }  
1043         return NULL;
1044 }
1045
1046 /* look for audio-gpio device */
1047 static struct device_node *find_compatible_audio_device(const char *name)
1048 {
1049         struct device_node *np;
1050   
1051         if (! (np = find_devices("gpio")))
1052                 return NULL;
1053   
1054         for (np = np->child; np; np = np->sibling) {
1055                 if (device_is_compatible(np, name))
1056                         return np;
1057         }  
1058         return NULL;
1059 }
1060
1061 /* find an audio device and get its address */
1062 static long tumbler_find_device(const char *device, const char *platform,
1063                                 struct pmac_gpio *gp, int is_compatible)
1064 {
1065         struct device_node *node;
1066         const u32 *base;
1067         u32 addr;
1068
1069         if (is_compatible)
1070                 node = find_compatible_audio_device(device);
1071         else
1072                 node = find_audio_device(device);
1073         if (! node) {
1074                 DBG("(W) cannot find audio device %s !\n", device);
1075                 snd_printdd("cannot find device %s\n", device);
1076                 return -ENODEV;
1077         }
1078
1079         base = get_property(node, "AAPL,address", NULL);
1080         if (! base) {
1081                 base = get_property(node, "reg", NULL);
1082                 if (!base) {
1083                         DBG("(E) cannot find address for device %s !\n", device);
1084                         snd_printd("cannot find address for device %s\n", device);
1085                         return -ENODEV;
1086                 }
1087                 addr = *base;
1088                 if (addr < 0x50)
1089                         addr += 0x50;
1090         } else
1091                 addr = *base;
1092
1093         gp->addr = addr & 0x0000ffff;
1094         /* Try to find the active state, default to 0 ! */
1095         base = get_property(node, "audio-gpio-active-state", NULL);
1096         if (base) {
1097                 gp->active_state = *base;
1098                 gp->active_val = (*base) ? 0x5 : 0x4;
1099                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1100         } else {
1101                 const u32 *prop = NULL;
1102                 gp->active_state = 0;
1103                 gp->active_val = 0x4;
1104                 gp->inactive_val = 0x5;
1105                 /* Here are some crude hacks to extract the GPIO polarity and
1106                  * open collector informations out of the do-platform script
1107                  * as we don't yet have an interpreter for these things
1108                  */
1109                 if (platform)
1110                         prop = get_property(node, platform, NULL);
1111                 if (prop) {
1112                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1113                                 gp->active_val = 0xd;
1114                                 gp->inactive_val = 0xc;
1115                         }
1116                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1117                                 gp->active_val = 0x5;
1118                                 gp->inactive_val = 0x4;
1119                         }
1120                 }
1121         }
1122
1123         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1124             device, gp->addr, gp->active_state);
1125
1126         return irq_of_parse_and_map(node, 0);
1127 }
1128
1129 /* reset audio */
1130 static void tumbler_reset_audio(struct snd_pmac *chip)
1131 {
1132         struct pmac_tumbler *mix = chip->mixer_data;
1133
1134         if (mix->anded_reset) {
1135                 DBG("(I) codec anded reset !\n");
1136                 write_audio_gpio(&mix->hp_mute, 0);
1137                 write_audio_gpio(&mix->amp_mute, 0);
1138                 msleep(200);
1139                 write_audio_gpio(&mix->hp_mute, 1);
1140                 write_audio_gpio(&mix->amp_mute, 1);
1141                 msleep(100);
1142                 write_audio_gpio(&mix->hp_mute, 0);
1143                 write_audio_gpio(&mix->amp_mute, 0);
1144                 msleep(100);
1145         } else {
1146                 DBG("(I) codec normal reset !\n");
1147
1148                 write_audio_gpio(&mix->audio_reset, 0);
1149                 msleep(200);
1150                 write_audio_gpio(&mix->audio_reset, 1);
1151                 msleep(100);
1152                 write_audio_gpio(&mix->audio_reset, 0);
1153                 msleep(100);
1154         }
1155 }
1156
1157 #ifdef CONFIG_PM
1158 /* suspend mixer */
1159 static void tumbler_suspend(struct snd_pmac *chip)
1160 {
1161         struct pmac_tumbler *mix = chip->mixer_data;
1162
1163         if (mix->headphone_irq >= 0)
1164                 disable_irq(mix->headphone_irq);
1165         if (mix->lineout_irq >= 0)
1166                 disable_irq(mix->lineout_irq);
1167         mix->save_master_switch[0] = mix->master_switch[0];
1168         mix->save_master_switch[1] = mix->master_switch[1];
1169         mix->save_master_vol[0] = mix->master_vol[0];
1170         mix->save_master_vol[1] = mix->master_vol[1];
1171         mix->master_switch[0] = mix->master_switch[1] = 0;
1172         tumbler_set_master_volume(mix);
1173         if (!mix->anded_reset) {
1174                 write_audio_gpio(&mix->amp_mute, 1);
1175                 write_audio_gpio(&mix->hp_mute, 1);
1176         }
1177         if (chip->model == PMAC_SNAPPER) {
1178                 mix->acs |= 1;
1179                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1180         }
1181         if (mix->anded_reset) {
1182                 write_audio_gpio(&mix->amp_mute, 1);
1183                 write_audio_gpio(&mix->hp_mute, 1);
1184         } else
1185                 write_audio_gpio(&mix->audio_reset, 1);
1186 }
1187
1188 /* resume mixer */
1189 static void tumbler_resume(struct snd_pmac *chip)
1190 {
1191         struct pmac_tumbler *mix = chip->mixer_data;
1192
1193         snd_assert(mix, return);
1194
1195         mix->acs &= ~1;
1196         mix->master_switch[0] = mix->save_master_switch[0];
1197         mix->master_switch[1] = mix->save_master_switch[1];
1198         mix->master_vol[0] = mix->save_master_vol[0];
1199         mix->master_vol[1] = mix->save_master_vol[1];
1200         tumbler_reset_audio(chip);
1201         if (mix->i2c.client && mix->i2c.init_client) {
1202                 if (mix->i2c.init_client(&mix->i2c) < 0)
1203                         printk(KERN_ERR "tumbler_init_client error\n");
1204         } else
1205                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1206         if (chip->model == PMAC_TUMBLER) {
1207                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1208                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1209                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1210                 tumbler_set_drc(mix);
1211         } else {
1212                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1213                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1214                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1215                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1216                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1217                 snapper_set_drc(mix);
1218                 snapper_set_capture_source(mix);
1219         }
1220         tumbler_set_master_volume(mix);
1221         if (chip->update_automute)
1222                 chip->update_automute(chip, 0);
1223         if (mix->headphone_irq >= 0) {
1224                 unsigned char val;
1225
1226                 enable_irq(mix->headphone_irq);
1227                 /* activate headphone status interrupts */
1228                 val = do_gpio_read(&mix->hp_detect);
1229                 do_gpio_write(&mix->hp_detect, val | 0x80);
1230         }
1231         if (mix->lineout_irq >= 0)
1232                 enable_irq(mix->lineout_irq);
1233 }
1234 #endif
1235
1236 /* initialize tumbler */
1237 static int __init tumbler_init(struct snd_pmac *chip)
1238 {
1239         int irq;
1240         struct pmac_tumbler *mix = chip->mixer_data;
1241         snd_assert(mix, return -EINVAL);
1242
1243         if (tumbler_find_device("audio-hw-reset",
1244                                 "platform-do-hw-reset",
1245                                 &mix->audio_reset, 0) < 0)
1246                 tumbler_find_device("hw-reset",
1247                                     "platform-do-hw-reset",
1248                                     &mix->audio_reset, 1);
1249         if (tumbler_find_device("amp-mute",
1250                                 "platform-do-amp-mute",
1251                                 &mix->amp_mute, 0) < 0)
1252                 tumbler_find_device("amp-mute",
1253                                     "platform-do-amp-mute",
1254                                     &mix->amp_mute, 1);
1255         if (tumbler_find_device("headphone-mute",
1256                                 "platform-do-headphone-mute",
1257                                 &mix->hp_mute, 0) < 0)
1258                 tumbler_find_device("headphone-mute",
1259                                     "platform-do-headphone-mute",
1260                                     &mix->hp_mute, 1);
1261         if (tumbler_find_device("line-output-mute",
1262                                 "platform-do-lineout-mute",
1263                                 &mix->line_mute, 0) < 0)
1264                 tumbler_find_device("line-output-mute",
1265                                    "platform-do-lineout-mute",
1266                                     &mix->line_mute, 1);
1267         irq = tumbler_find_device("headphone-detect",
1268                                   NULL, &mix->hp_detect, 0);
1269         if (irq <= NO_IRQ)
1270                 irq = tumbler_find_device("headphone-detect",
1271                                           NULL, &mix->hp_detect, 1);
1272         if (irq <= NO_IRQ)
1273                 irq = tumbler_find_device("keywest-gpio15",
1274                                           NULL, &mix->hp_detect, 1);
1275         mix->headphone_irq = irq;
1276         irq = tumbler_find_device("line-output-detect",
1277                                   NULL, &mix->line_detect, 0);
1278         if (irq <= NO_IRQ)
1279                 irq = tumbler_find_device("line-output-detect",
1280                                           NULL, &mix->line_detect, 1);
1281         mix->lineout_irq = irq;
1282
1283         tumbler_reset_audio(chip);
1284   
1285         return 0;
1286 }
1287
1288 static void tumbler_cleanup(struct snd_pmac *chip)
1289 {
1290         struct pmac_tumbler *mix = chip->mixer_data;
1291         if (! mix)
1292                 return;
1293
1294         if (mix->headphone_irq >= 0)
1295                 free_irq(mix->headphone_irq, chip);
1296         if (mix->lineout_irq >= 0)
1297                 free_irq(mix->lineout_irq, chip);
1298         tumbler_gpio_free(&mix->audio_reset);
1299         tumbler_gpio_free(&mix->amp_mute);
1300         tumbler_gpio_free(&mix->hp_mute);
1301         tumbler_gpio_free(&mix->hp_detect);
1302         snd_pmac_keywest_cleanup(&mix->i2c);
1303         kfree(mix);
1304         chip->mixer_data = NULL;
1305 }
1306
1307 /* exported */
1308 int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
1309 {
1310         int i, err;
1311         struct pmac_tumbler *mix;
1312         u32 *paddr;
1313         struct device_node *tas_node, *np;
1314         char *chipname;
1315
1316 #ifdef CONFIG_KMOD
1317         if (current->fs->root)
1318                 request_module("i2c-powermac");
1319 #endif /* CONFIG_KMOD */        
1320
1321         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1322         if (! mix)
1323                 return -ENOMEM;
1324         mix->headphone_irq = -1;
1325
1326         chip->mixer_data = mix;
1327         chip->mixer_free = tumbler_cleanup;
1328         mix->anded_reset = 0;
1329         mix->reset_on_sleep = 1;
1330
1331         for (np = chip->node->child; np; np = np->sibling) {
1332                 if (!strcmp(np->name, "sound")) {
1333                         if (get_property(np, "has-anded-reset", NULL))
1334                                 mix->anded_reset = 1;
1335                         if (get_property(np, "layout-id", NULL))
1336                                 mix->reset_on_sleep = 0;
1337                         break;
1338                 }
1339         }
1340         if ((err = tumbler_init(chip)) < 0)
1341                 return err;
1342
1343         /* set up TAS */
1344         tas_node = find_devices("deq");
1345         if (tas_node == NULL)
1346                 tas_node = find_devices("codec");
1347         if (tas_node == NULL)
1348                 return -ENODEV;
1349
1350         paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
1351         if (paddr == NULL)
1352                 paddr = (u32 *)get_property(tas_node, "reg", NULL);
1353         if (paddr)
1354                 mix->i2c.addr = (*paddr) >> 1;
1355         else
1356                 mix->i2c.addr = TAS_I2C_ADDR;
1357
1358         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1359
1360         if (chip->model == PMAC_TUMBLER) {
1361                 mix->i2c.init_client = tumbler_init_client;
1362                 mix->i2c.name = "TAS3001c";
1363                 chipname = "Tumbler";
1364         } else {
1365                 mix->i2c.init_client = snapper_init_client;
1366                 mix->i2c.name = "TAS3004";
1367                 chipname = "Snapper";
1368         }
1369
1370         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1371                 return err;
1372
1373         /*
1374          * build mixers
1375          */
1376         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1377
1378         if (chip->model == PMAC_TUMBLER) {
1379                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1380                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1381                                 return err;
1382                 }
1383         } else {
1384                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1385                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1386                                 return err;
1387                 }
1388         }
1389         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1390         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1391                 return err;
1392         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1393         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1394                 return err;
1395         if (mix->line_mute.addr != 0) {
1396                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1397                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1398                         return err;
1399         }
1400         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1401         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1402                 return err;
1403
1404         /* set initial DRC range to 60% */
1405         if (chip->model == PMAC_TUMBLER)
1406                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1407         else
1408                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1409         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1410         if (chip->model == PMAC_TUMBLER)
1411                 tumbler_set_drc(mix);
1412         else
1413                 snapper_set_drc(mix);
1414
1415 #ifdef CONFIG_PM
1416         chip->suspend = tumbler_suspend;
1417         chip->resume = tumbler_resume;
1418 #endif
1419
1420         INIT_WORK(&device_change, device_change_handler, (void *)chip);
1421
1422 #ifdef PMAC_SUPPORT_AUTOMUTE
1423         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1424             && (err = snd_pmac_add_automute(chip)) < 0)
1425                 return err;
1426         chip->detect_headphone = tumbler_detect_headphone;
1427         chip->update_automute = tumbler_update_automute;
1428         tumbler_update_automute(chip, 0); /* update the status only */
1429
1430         /* activate headphone status interrupts */
1431         if (mix->headphone_irq >= 0) {
1432                 unsigned char val;
1433                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1434                                        "Sound Headphone Detection", chip)) < 0)
1435                         return 0;
1436                 /* activate headphone status interrupts */
1437                 val = do_gpio_read(&mix->hp_detect);
1438                 do_gpio_write(&mix->hp_detect, val | 0x80);
1439         }
1440         if (mix->lineout_irq >= 0) {
1441                 unsigned char val;
1442                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1443                                        "Sound Lineout Detection", chip)) < 0)
1444                         return 0;
1445                 /* activate headphone status interrupts */
1446                 val = do_gpio_read(&mix->line_detect);
1447                 do_gpio_write(&mix->line_detect, val | 0x80);
1448         }
1449 #endif
1450
1451         return 0;
1452 }