ALSA: ppc: More constifications
[muen/linux.git] / sound / ppc / tumbler.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * PMac Tumbler/Snapper lowlevel functions
4  *
5  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
6  *
7  *   Rene Rebe <rene.rebe@gmx.net>:
8  *     * update from shadow registers on wakeup and headphone plug
9  *     * automatically toggle DRC on headphone plug
10  */
11
12
13 #include <linux/init.h>
14 #include <linux/delay.h>
15 #include <linux/i2c.h>
16 #include <linux/kmod.h>
17 #include <linux/slab.h>
18 #include <linux/interrupt.h>
19 #include <linux/string.h>
20 #include <linux/of_irq.h>
21 #include <linux/io.h>
22 #include <sound/core.h>
23 #include <asm/irq.h>
24 #include <asm/machdep.h>
25 #include <asm/pmac_feature.h>
26 #include "pmac.h"
27 #include "tumbler_volume.h"
28
29 #undef DEBUG
30
31 #ifdef DEBUG
32 #define DBG(fmt...) printk(KERN_DEBUG fmt)
33 #else
34 #define DBG(fmt...)
35 #endif
36
37 #define IS_G4DA (of_machine_is_compatible("PowerMac3,4"))
38
39 /* i2c address for tumbler */
40 #define TAS_I2C_ADDR    0x34
41
42 /* registers */
43 #define TAS_REG_MCS     0x01    /* main control */
44 #define TAS_REG_DRC     0x02
45 #define TAS_REG_VOL     0x04
46 #define TAS_REG_TREBLE  0x05
47 #define TAS_REG_BASS    0x06
48 #define TAS_REG_INPUT1  0x07
49 #define TAS_REG_INPUT2  0x08
50
51 /* tas3001c */
52 #define TAS_REG_PCM     TAS_REG_INPUT1
53  
54 /* tas3004 */
55 #define TAS_REG_LMIX    TAS_REG_INPUT1
56 #define TAS_REG_RMIX    TAS_REG_INPUT2
57 #define TAS_REG_MCS2    0x43            /* main control 2 */
58 #define TAS_REG_ACS     0x40            /* analog control */
59
60 /* mono volumes for tas3001c/tas3004 */
61 enum {
62         VOL_IDX_PCM_MONO, /* tas3001c only */
63         VOL_IDX_BASS, VOL_IDX_TREBLE,
64         VOL_IDX_LAST_MONO
65 };
66
67 /* stereo volumes for tas3004 */
68 enum {
69         VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
70         VOL_IDX_LAST_MIX
71 };
72
73 struct pmac_gpio {
74         unsigned int addr;
75         u8 active_val;
76         u8 inactive_val;
77         u8 active_state;
78 };
79
80 struct pmac_tumbler {
81         struct pmac_keywest i2c;
82         struct pmac_gpio audio_reset;
83         struct pmac_gpio amp_mute;
84         struct pmac_gpio line_mute;
85         struct pmac_gpio line_detect;
86         struct pmac_gpio hp_mute;
87         struct pmac_gpio hp_detect;
88         int headphone_irq;
89         int lineout_irq;
90         unsigned int save_master_vol[2];
91         unsigned int master_vol[2];
92         unsigned int save_master_switch[2];
93         unsigned int master_switch[2];
94         unsigned int mono_vol[VOL_IDX_LAST_MONO];
95         unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
96         int drc_range;
97         int drc_enable;
98         int capture_source;
99         int anded_reset;
100         int auto_mute_notify;
101         int reset_on_sleep;
102         u8  acs;
103 };
104
105
106 /*
107  */
108
109 static int send_init_client(struct pmac_keywest *i2c, const unsigned int *regs)
110 {
111         while (*regs > 0) {
112                 int err, count = 10;
113                 do {
114                         err = i2c_smbus_write_byte_data(i2c->client,
115                                                         regs[0], regs[1]);
116                         if (err >= 0)
117                                 break;
118                         DBG("(W) i2c error %d\n", err);
119                         mdelay(10);
120                 } while (count--);
121                 if (err < 0)
122                         return -ENXIO;
123                 regs += 2;
124         }
125         return 0;
126 }
127
128
129 static int tumbler_init_client(struct pmac_keywest *i2c)
130 {
131         static const unsigned int regs[] = {
132                 /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
133                 TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
134                 0, /* terminator */
135         };
136         DBG("(I) tumbler init client\n");
137         return send_init_client(i2c, regs);
138 }
139
140 static int snapper_init_client(struct pmac_keywest *i2c)
141 {
142         static const unsigned int regs[] = {
143                 /* normal operation, SCLK=64fps, i2s output, 16bit width */
144                 TAS_REG_MCS, (1<<6)|(2<<4)|0,
145                 /* normal operation, all-pass mode */
146                 TAS_REG_MCS2, (1<<1),
147                 /* normal output, no deemphasis, A input, power-up, line-in */
148                 TAS_REG_ACS, 0,
149                 0, /* terminator */
150         };
151         DBG("(I) snapper init client\n");
152         return send_init_client(i2c, regs);
153 }
154         
155 /*
156  * gpio access
157  */
158 #define do_gpio_write(gp, val) \
159         pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
160 #define do_gpio_read(gp) \
161         pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
162 #define tumbler_gpio_free(gp) /* NOP */
163
164 static void write_audio_gpio(struct pmac_gpio *gp, int active)
165 {
166         if (! gp->addr)
167                 return;
168         active = active ? gp->active_val : gp->inactive_val;
169         do_gpio_write(gp, active);
170         DBG("(I) gpio %x write %d\n", gp->addr, active);
171 }
172
173 static int check_audio_gpio(struct pmac_gpio *gp)
174 {
175         int ret;
176
177         if (! gp->addr)
178                 return 0;
179
180         ret = do_gpio_read(gp);
181
182         return (ret & 0x1) == (gp->active_val & 0x1);
183 }
184
185 static int read_audio_gpio(struct pmac_gpio *gp)
186 {
187         int ret;
188         if (! gp->addr)
189                 return 0;
190         ret = do_gpio_read(gp);
191         ret = (ret & 0x02) !=0;
192         return ret == gp->active_state;
193 }
194
195 /*
196  * update master volume
197  */
198 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
199 {
200         unsigned char block[6];
201         unsigned int left_vol, right_vol;
202   
203         if (! mix->i2c.client)
204                 return -ENODEV;
205   
206         if (! mix->master_switch[0])
207                 left_vol = 0;
208         else {
209                 left_vol = mix->master_vol[0];
210                 if (left_vol >= ARRAY_SIZE(master_volume_table))
211                         left_vol = ARRAY_SIZE(master_volume_table) - 1;
212                 left_vol = master_volume_table[left_vol];
213         }
214         if (! mix->master_switch[1])
215                 right_vol = 0;
216         else {
217                 right_vol = mix->master_vol[1];
218                 if (right_vol >= ARRAY_SIZE(master_volume_table))
219                         right_vol = ARRAY_SIZE(master_volume_table) - 1;
220                 right_vol = master_volume_table[right_vol];
221         }
222
223         block[0] = (left_vol >> 16) & 0xff;
224         block[1] = (left_vol >> 8)  & 0xff;
225         block[2] = (left_vol >> 0)  & 0xff;
226
227         block[3] = (right_vol >> 16) & 0xff;
228         block[4] = (right_vol >> 8)  & 0xff;
229         block[5] = (right_vol >> 0)  & 0xff;
230   
231         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
232                                            block) < 0) {
233                 snd_printk(KERN_ERR "failed to set volume \n");
234                 return -EINVAL;
235         }
236         DBG("(I) succeeded to set volume (%u, %u)\n", left_vol, right_vol);
237         return 0;
238 }
239
240
241 /* output volume */
242 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
243                                       struct snd_ctl_elem_info *uinfo)
244 {
245         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
246         uinfo->count = 2;
247         uinfo->value.integer.min = 0;
248         uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
249         return 0;
250 }
251
252 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
253                                      struct snd_ctl_elem_value *ucontrol)
254 {
255         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
256         struct pmac_tumbler *mix = chip->mixer_data;
257
258         ucontrol->value.integer.value[0] = mix->master_vol[0];
259         ucontrol->value.integer.value[1] = mix->master_vol[1];
260         return 0;
261 }
262
263 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
264                                      struct snd_ctl_elem_value *ucontrol)
265 {
266         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
267         struct pmac_tumbler *mix = chip->mixer_data;
268         unsigned int vol[2];
269         int change;
270
271         vol[0] = ucontrol->value.integer.value[0];
272         vol[1] = ucontrol->value.integer.value[1];
273         if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
274             vol[1] >= ARRAY_SIZE(master_volume_table))
275                 return -EINVAL;
276         change = mix->master_vol[0] != vol[0] ||
277                 mix->master_vol[1] != vol[1];
278         if (change) {
279                 mix->master_vol[0] = vol[0];
280                 mix->master_vol[1] = vol[1];
281                 tumbler_set_master_volume(mix);
282         }
283         return change;
284 }
285
286 /* output switch */
287 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
288                                      struct snd_ctl_elem_value *ucontrol)
289 {
290         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
291         struct pmac_tumbler *mix = chip->mixer_data;
292
293         ucontrol->value.integer.value[0] = mix->master_switch[0];
294         ucontrol->value.integer.value[1] = mix->master_switch[1];
295         return 0;
296 }
297
298 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
299                                      struct snd_ctl_elem_value *ucontrol)
300 {
301         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
302         struct pmac_tumbler *mix = chip->mixer_data;
303         int change;
304
305         change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
306                 mix->master_switch[1] != ucontrol->value.integer.value[1];
307         if (change) {
308                 mix->master_switch[0] = !!ucontrol->value.integer.value[0];
309                 mix->master_switch[1] = !!ucontrol->value.integer.value[1];
310                 tumbler_set_master_volume(mix);
311         }
312         return change;
313 }
314
315
316 /*
317  * TAS3001c dynamic range compression
318  */
319
320 #define TAS3001_DRC_MAX         0x5f
321
322 static int tumbler_set_drc(struct pmac_tumbler *mix)
323 {
324         unsigned char val[2];
325
326         if (! mix->i2c.client)
327                 return -ENODEV;
328   
329         if (mix->drc_enable) {
330                 val[0] = 0xc1; /* enable, 3:1 compression */
331                 if (mix->drc_range > TAS3001_DRC_MAX)
332                         val[1] = 0xf0;
333                 else if (mix->drc_range < 0)
334                         val[1] = 0x91;
335                 else
336                         val[1] = mix->drc_range + 0x91;
337         } else {
338                 val[0] = 0;
339                 val[1] = 0;
340         }
341
342         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
343                                            2, val) < 0) {
344                 snd_printk(KERN_ERR "failed to set DRC\n");
345                 return -EINVAL;
346         }
347         DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
348         return 0;
349 }
350
351 /*
352  * TAS3004
353  */
354
355 #define TAS3004_DRC_MAX         0xef
356
357 static int snapper_set_drc(struct pmac_tumbler *mix)
358 {
359         unsigned char val[6];
360
361         if (! mix->i2c.client)
362                 return -ENODEV;
363   
364         if (mix->drc_enable)
365                 val[0] = 0x50; /* 3:1 above threshold */
366         else
367                 val[0] = 0x51; /* disabled */
368         val[1] = 0x02; /* 1:1 below threshold */
369         if (mix->drc_range > 0xef)
370                 val[2] = 0xef;
371         else if (mix->drc_range < 0)
372                 val[2] = 0x00;
373         else
374                 val[2] = mix->drc_range;
375         val[3] = 0xb0;
376         val[4] = 0x60;
377         val[5] = 0xa0;
378
379         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
380                                            6, val) < 0) {
381                 snd_printk(KERN_ERR "failed to set DRC\n");
382                 return -EINVAL;
383         }
384         DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
385         return 0;
386 }
387
388 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
389                                   struct snd_ctl_elem_info *uinfo)
390 {
391         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
392         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
393         uinfo->count = 1;
394         uinfo->value.integer.min = 0;
395         uinfo->value.integer.max =
396                 chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
397         return 0;
398 }
399
400 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
401                                  struct snd_ctl_elem_value *ucontrol)
402 {
403         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
404         struct pmac_tumbler *mix;
405         if (! (mix = chip->mixer_data))
406                 return -ENODEV;
407         ucontrol->value.integer.value[0] = mix->drc_range;
408         return 0;
409 }
410
411 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
412                                  struct snd_ctl_elem_value *ucontrol)
413 {
414         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
415         struct pmac_tumbler *mix;
416         unsigned int val;
417         int change;
418
419         if (! (mix = chip->mixer_data))
420                 return -ENODEV;
421         val = ucontrol->value.integer.value[0];
422         if (chip->model == PMAC_TUMBLER) {
423                 if (val > TAS3001_DRC_MAX)
424                         return -EINVAL;
425         } else {
426                 if (val > TAS3004_DRC_MAX)
427                         return -EINVAL;
428         }
429         change = mix->drc_range != val;
430         if (change) {
431                 mix->drc_range = val;
432                 if (chip->model == PMAC_TUMBLER)
433                         tumbler_set_drc(mix);
434                 else
435                         snapper_set_drc(mix);
436         }
437         return change;
438 }
439
440 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
441                                   struct snd_ctl_elem_value *ucontrol)
442 {
443         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
444         struct pmac_tumbler *mix;
445         if (! (mix = chip->mixer_data))
446                 return -ENODEV;
447         ucontrol->value.integer.value[0] = mix->drc_enable;
448         return 0;
449 }
450
451 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
452                                   struct snd_ctl_elem_value *ucontrol)
453 {
454         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
455         struct pmac_tumbler *mix;
456         int change;
457
458         if (! (mix = chip->mixer_data))
459                 return -ENODEV;
460         change = mix->drc_enable != ucontrol->value.integer.value[0];
461         if (change) {
462                 mix->drc_enable = !!ucontrol->value.integer.value[0];
463                 if (chip->model == PMAC_TUMBLER)
464                         tumbler_set_drc(mix);
465                 else
466                         snapper_set_drc(mix);
467         }
468         return change;
469 }
470
471
472 /*
473  * mono volumes
474  */
475
476 struct tumbler_mono_vol {
477         int index;
478         int reg;
479         int bytes;
480         unsigned int max;
481         const unsigned int *table;
482 };
483
484 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
485                                    const struct tumbler_mono_vol *info)
486 {
487         unsigned char block[4];
488         unsigned int vol;
489         int i;
490   
491         if (! mix->i2c.client)
492                 return -ENODEV;
493   
494         vol = mix->mono_vol[info->index];
495         if (vol >= info->max)
496                 vol = info->max - 1;
497         vol = info->table[vol];
498         for (i = 0; i < info->bytes; i++)
499                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
500         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
501                                            info->bytes, block) < 0) {
502                 snd_printk(KERN_ERR "failed to set mono volume %d\n",
503                            info->index);
504                 return -EINVAL;
505         }
506         return 0;
507 }
508
509 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
510                              struct snd_ctl_elem_info *uinfo)
511 {
512         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
513
514         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
515         uinfo->count = 1;
516         uinfo->value.integer.min = 0;
517         uinfo->value.integer.max = info->max - 1;
518         return 0;
519 }
520
521 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
522                             struct snd_ctl_elem_value *ucontrol)
523 {
524         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
525         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
526         struct pmac_tumbler *mix;
527         if (! (mix = chip->mixer_data))
528                 return -ENODEV;
529         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
530         return 0;
531 }
532
533 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
534                             struct snd_ctl_elem_value *ucontrol)
535 {
536         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
537         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
538         struct pmac_tumbler *mix;
539         unsigned int vol;
540         int change;
541
542         if (! (mix = chip->mixer_data))
543                 return -ENODEV;
544         vol = ucontrol->value.integer.value[0];
545         if (vol >= info->max)
546                 return -EINVAL;
547         change = mix->mono_vol[info->index] != vol;
548         if (change) {
549                 mix->mono_vol[info->index] = vol;
550                 tumbler_set_mono_volume(mix, info);
551         }
552         return change;
553 }
554
555 /* TAS3001c mono volumes */
556 static const struct tumbler_mono_vol tumbler_pcm_vol_info = {
557         .index = VOL_IDX_PCM_MONO,
558         .reg = TAS_REG_PCM,
559         .bytes = 3,
560         .max = ARRAY_SIZE(mixer_volume_table),
561         .table = mixer_volume_table,
562 };
563
564 static const struct tumbler_mono_vol tumbler_bass_vol_info = {
565         .index = VOL_IDX_BASS,
566         .reg = TAS_REG_BASS,
567         .bytes = 1,
568         .max = ARRAY_SIZE(bass_volume_table),
569         .table = bass_volume_table,
570 };
571
572 static const struct tumbler_mono_vol tumbler_treble_vol_info = {
573         .index = VOL_IDX_TREBLE,
574         .reg = TAS_REG_TREBLE,
575         .bytes = 1,
576         .max = ARRAY_SIZE(treble_volume_table),
577         .table = treble_volume_table,
578 };
579
580 /* TAS3004 mono volumes */
581 static const struct tumbler_mono_vol snapper_bass_vol_info = {
582         .index = VOL_IDX_BASS,
583         .reg = TAS_REG_BASS,
584         .bytes = 1,
585         .max = ARRAY_SIZE(snapper_bass_volume_table),
586         .table = snapper_bass_volume_table,
587 };
588
589 static const struct tumbler_mono_vol snapper_treble_vol_info = {
590         .index = VOL_IDX_TREBLE,
591         .reg = TAS_REG_TREBLE,
592         .bytes = 1,
593         .max = ARRAY_SIZE(snapper_treble_volume_table),
594         .table = snapper_treble_volume_table,
595 };
596
597
598 #define DEFINE_MONO(xname,type) { \
599         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
600         .name = xname, \
601         .info = tumbler_info_mono, \
602         .get = tumbler_get_mono, \
603         .put = tumbler_put_mono, \
604         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
605 }
606
607 #define DEFINE_SNAPPER_MONO(xname,type) { \
608         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
609         .name = xname, \
610         .info = tumbler_info_mono, \
611         .get = tumbler_get_mono, \
612         .put = tumbler_put_mono, \
613         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
614 }
615
616
617 /*
618  * snapper mixer volumes
619  */
620
621 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
622 {
623         int i, j, vol;
624         unsigned char block[9];
625
626         vol = mix->mix_vol[idx][ch];
627         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
628                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
629                 mix->mix_vol[idx][ch] = vol;
630         }
631
632         for (i = 0; i < 3; i++) {
633                 vol = mix->mix_vol[i][ch];
634                 vol = mixer_volume_table[vol];
635                 for (j = 0; j < 3; j++)
636                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
637         }
638         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
639                                            9, block) < 0) {
640                 snd_printk(KERN_ERR "failed to set mono volume %d\n", reg);
641                 return -EINVAL;
642         }
643         return 0;
644 }
645
646 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
647 {
648         if (! mix->i2c.client)
649                 return -ENODEV;
650         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
651             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
652                 return -EINVAL;
653         return 0;
654 }
655
656 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
657                             struct snd_ctl_elem_info *uinfo)
658 {
659         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
660         uinfo->count = 2;
661         uinfo->value.integer.min = 0;
662         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
663         return 0;
664 }
665
666 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
667                            struct snd_ctl_elem_value *ucontrol)
668 {
669         int idx = (int)kcontrol->private_value;
670         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
671         struct pmac_tumbler *mix;
672         if (! (mix = chip->mixer_data))
673                 return -ENODEV;
674         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
675         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
676         return 0;
677 }
678
679 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
680                            struct snd_ctl_elem_value *ucontrol)
681 {
682         int idx = (int)kcontrol->private_value;
683         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
684         struct pmac_tumbler *mix;
685         unsigned int vol[2];
686         int change;
687
688         if (! (mix = chip->mixer_data))
689                 return -ENODEV;
690         vol[0] = ucontrol->value.integer.value[0];
691         vol[1] = ucontrol->value.integer.value[1];
692         if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
693             vol[1] >= ARRAY_SIZE(mixer_volume_table))
694                 return -EINVAL;
695         change = mix->mix_vol[idx][0] != vol[0] ||
696                 mix->mix_vol[idx][1] != vol[1];
697         if (change) {
698                 mix->mix_vol[idx][0] = vol[0];
699                 mix->mix_vol[idx][1] = vol[1];
700                 snapper_set_mix_vol(mix, idx);
701         }
702         return change;
703 }
704
705
706 /*
707  * mute switches. FIXME: Turn that into software mute when both outputs are muted
708  * to avoid codec reset on ibook M7
709  */
710
711 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
712
713 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
714                                    struct snd_ctl_elem_value *ucontrol)
715 {
716         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
717         struct pmac_tumbler *mix;
718         struct pmac_gpio *gp;
719         if (! (mix = chip->mixer_data))
720                 return -ENODEV;
721         switch(kcontrol->private_value) {
722         case TUMBLER_MUTE_HP:
723                 gp = &mix->hp_mute;     break;
724         case TUMBLER_MUTE_AMP:
725                 gp = &mix->amp_mute;    break;
726         case TUMBLER_MUTE_LINE:
727                 gp = &mix->line_mute;   break;
728         default:
729                 gp = NULL;
730         }
731         if (gp == NULL)
732                 return -EINVAL;
733         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
734         return 0;
735 }
736
737 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
738                                    struct snd_ctl_elem_value *ucontrol)
739 {
740         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
741         struct pmac_tumbler *mix;
742         struct pmac_gpio *gp;
743         int val;
744 #ifdef PMAC_SUPPORT_AUTOMUTE
745         if (chip->update_automute && chip->auto_mute)
746                 return 0; /* don't touch in the auto-mute mode */
747 #endif  
748         if (! (mix = chip->mixer_data))
749                 return -ENODEV;
750         switch(kcontrol->private_value) {
751         case TUMBLER_MUTE_HP:
752                 gp = &mix->hp_mute;     break;
753         case TUMBLER_MUTE_AMP:
754                 gp = &mix->amp_mute;    break;
755         case TUMBLER_MUTE_LINE:
756                 gp = &mix->line_mute;   break;
757         default:
758                 gp = NULL;
759         }
760         if (gp == NULL)
761                 return -EINVAL;
762         val = ! check_audio_gpio(gp);
763         if (val != ucontrol->value.integer.value[0]) {
764                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
765                 return 1;
766         }
767         return 0;
768 }
769
770 static int snapper_set_capture_source(struct pmac_tumbler *mix)
771 {
772         if (! mix->i2c.client)
773                 return -ENODEV;
774         if (mix->capture_source)
775                 mix->acs |= 2;
776         else
777                 mix->acs &= ~2;
778         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
779 }
780
781 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
782                                        struct snd_ctl_elem_info *uinfo)
783 {
784         static const char * const texts[2] = {
785                 "Line", "Mic"
786         };
787
788         return snd_ctl_enum_info(uinfo, 1, 2, texts);
789 }
790
791 static int snapper_get_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
797         ucontrol->value.enumerated.item[0] = mix->capture_source;
798         return 0;
799 }
800
801 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
802                                       struct snd_ctl_elem_value *ucontrol)
803 {
804         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
805         struct pmac_tumbler *mix = chip->mixer_data;
806         int change;
807
808         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
809         if (change) {
810                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
811                 snapper_set_capture_source(mix);
812         }
813         return change;
814 }
815
816 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
817         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
818         .name = xname, \
819         .info = snapper_info_mix, \
820         .get = snapper_get_mix, \
821         .put = snapper_put_mix, \
822         .index = idx,\
823         .private_value = ofs, \
824 }
825
826
827 /*
828  */
829 static const struct snd_kcontrol_new tumbler_mixers[] = {
830         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
831           .name = "Master Playback Volume",
832           .info = tumbler_info_master_volume,
833           .get = tumbler_get_master_volume,
834           .put = tumbler_put_master_volume
835         },
836         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
837           .name = "Master Playback Switch",
838           .info = snd_pmac_boolean_stereo_info,
839           .get = tumbler_get_master_switch,
840           .put = tumbler_put_master_switch
841         },
842         DEFINE_MONO("Tone Control - Bass", bass),
843         DEFINE_MONO("Tone Control - Treble", treble),
844         DEFINE_MONO("PCM Playback Volume", pcm),
845         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
846           .name = "DRC Range",
847           .info = tumbler_info_drc_value,
848           .get = tumbler_get_drc_value,
849           .put = tumbler_put_drc_value
850         },
851 };
852
853 static const struct snd_kcontrol_new snapper_mixers[] = {
854         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
855           .name = "Master Playback Volume",
856           .info = tumbler_info_master_volume,
857           .get = tumbler_get_master_volume,
858           .put = tumbler_put_master_volume
859         },
860         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
861           .name = "Master Playback Switch",
862           .info = snd_pmac_boolean_stereo_info,
863           .get = tumbler_get_master_switch,
864           .put = tumbler_put_master_switch
865         },
866         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
867         /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
868         DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
869         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
870         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
871         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
872         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
873           .name = "DRC Range",
874           .info = tumbler_info_drc_value,
875           .get = tumbler_get_drc_value,
876           .put = tumbler_put_drc_value
877         },
878         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
879           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
880           .info = snapper_info_capture_source,
881           .get = snapper_get_capture_source,
882           .put = snapper_put_capture_source
883         },
884 };
885
886 static const struct snd_kcontrol_new tumbler_hp_sw = {
887         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
888         .name = "Headphone Playback Switch",
889         .info = snd_pmac_boolean_mono_info,
890         .get = tumbler_get_mute_switch,
891         .put = tumbler_put_mute_switch,
892         .private_value = TUMBLER_MUTE_HP,
893 };
894 static const struct snd_kcontrol_new tumbler_speaker_sw = {
895         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
896         .name = "Speaker Playback Switch",
897         .info = snd_pmac_boolean_mono_info,
898         .get = tumbler_get_mute_switch,
899         .put = tumbler_put_mute_switch,
900         .private_value = TUMBLER_MUTE_AMP,
901 };
902 static const struct snd_kcontrol_new tumbler_lineout_sw = {
903         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
904         .name = "Line Out Playback Switch",
905         .info = snd_pmac_boolean_mono_info,
906         .get = tumbler_get_mute_switch,
907         .put = tumbler_put_mute_switch,
908         .private_value = TUMBLER_MUTE_LINE,
909 };
910 static const struct snd_kcontrol_new tumbler_drc_sw = {
911         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
912         .name = "DRC Switch",
913         .info = snd_pmac_boolean_mono_info,
914         .get = tumbler_get_drc_switch,
915         .put = tumbler_put_drc_switch
916 };
917
918
919 #ifdef PMAC_SUPPORT_AUTOMUTE
920 /*
921  * auto-mute stuffs
922  */
923 static int tumbler_detect_headphone(struct snd_pmac *chip)
924 {
925         struct pmac_tumbler *mix = chip->mixer_data;
926         int detect = 0;
927
928         if (mix->hp_detect.addr)
929                 detect |= read_audio_gpio(&mix->hp_detect);
930         return detect;
931 }
932
933 static int tumbler_detect_lineout(struct snd_pmac *chip)
934 {
935         struct pmac_tumbler *mix = chip->mixer_data;
936         int detect = 0;
937
938         if (mix->line_detect.addr)
939                 detect |= read_audio_gpio(&mix->line_detect);
940         return detect;
941 }
942
943 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
944                        struct snd_kcontrol *sw)
945 {
946         if (check_audio_gpio(gp) != val) {
947                 write_audio_gpio(gp, val);
948                 if (do_notify)
949                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
950                                        &sw->id);
951         }
952 }
953
954 static struct work_struct device_change;
955 static struct snd_pmac *device_change_chip;
956
957 static void device_change_handler(struct work_struct *work)
958 {
959         struct snd_pmac *chip = device_change_chip;
960         struct pmac_tumbler *mix;
961         int headphone, lineout;
962
963         if (!chip)
964                 return;
965
966         mix = chip->mixer_data;
967         if (snd_BUG_ON(!mix))
968                 return;
969
970         headphone = tumbler_detect_headphone(chip);
971         lineout = tumbler_detect_lineout(chip);
972
973         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
974
975         if (headphone || lineout) {
976                 /* unmute headphone/lineout & mute speaker */
977                 if (headphone)
978                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
979                                    chip->master_sw_ctl);
980                 if (lineout && mix->line_mute.addr != 0)
981                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
982                                    chip->lineout_sw_ctl);
983                 if (mix->anded_reset)
984                         msleep(10);
985                 check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify,
986                            chip->speaker_sw_ctl);
987         } else {
988                 /* unmute speaker, mute others */
989                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
990                            chip->speaker_sw_ctl);
991                 if (mix->anded_reset)
992                         msleep(10);
993                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
994                            chip->master_sw_ctl);
995                 if (mix->line_mute.addr != 0)
996                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
997                                    chip->lineout_sw_ctl);
998         }
999         if (mix->auto_mute_notify)
1000                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1001                                        &chip->hp_detect_ctl->id);
1002
1003 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1004         mix->drc_enable = ! (headphone || lineout);
1005         if (mix->auto_mute_notify)
1006                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1007                                &chip->drc_sw_ctl->id);
1008         if (chip->model == PMAC_TUMBLER)
1009                 tumbler_set_drc(mix);
1010         else
1011                 snapper_set_drc(mix);
1012 #endif
1013
1014         /* reset the master volume so the correct amplification is applied */
1015         tumbler_set_master_volume(mix);
1016 }
1017
1018 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1019 {
1020         if (chip->auto_mute) {
1021                 struct pmac_tumbler *mix;
1022                 mix = chip->mixer_data;
1023                 if (snd_BUG_ON(!mix))
1024                         return;
1025                 mix->auto_mute_notify = do_notify;
1026                 schedule_work(&device_change);
1027         }
1028 }
1029 #endif /* PMAC_SUPPORT_AUTOMUTE */
1030
1031
1032 /* interrupt - headphone plug changed */
1033 static irqreturn_t headphone_intr(int irq, void *devid)
1034 {
1035         struct snd_pmac *chip = devid;
1036         if (chip->update_automute && chip->initialized) {
1037                 chip->update_automute(chip, 1);
1038                 return IRQ_HANDLED;
1039         }
1040         return IRQ_NONE;
1041 }
1042
1043 /* look for audio-gpio device */
1044 static struct device_node *find_audio_device(const char *name)
1045 {
1046         struct device_node *gpiop;
1047         struct device_node *np;
1048   
1049         gpiop = of_find_node_by_name(NULL, "gpio");
1050         if (! gpiop)
1051                 return NULL;
1052   
1053         for (np = of_get_next_child(gpiop, NULL); np;
1054                         np = of_get_next_child(gpiop, np)) {
1055                 const char *property = of_get_property(np, "audio-gpio", NULL);
1056                 if (property && strcmp(property, name) == 0)
1057                         break;
1058         }  
1059         of_node_put(gpiop);
1060         return np;
1061 }
1062
1063 /* look for audio-gpio device */
1064 static struct device_node *find_compatible_audio_device(const char *name)
1065 {
1066         struct device_node *gpiop;
1067         struct device_node *np;
1068   
1069         gpiop = of_find_node_by_name(NULL, "gpio");
1070         if (!gpiop)
1071                 return NULL;
1072   
1073         for (np = of_get_next_child(gpiop, NULL); np;
1074                         np = of_get_next_child(gpiop, np)) {
1075                 if (of_device_is_compatible(np, name))
1076                         break;
1077         }  
1078         of_node_put(gpiop);
1079         return np;
1080 }
1081
1082 /* find an audio device and get its address */
1083 static long tumbler_find_device(const char *device, const char *platform,
1084                                 struct pmac_gpio *gp, int is_compatible)
1085 {
1086         struct device_node *node;
1087         const u32 *base;
1088         u32 addr;
1089         long ret;
1090
1091         if (is_compatible)
1092                 node = find_compatible_audio_device(device);
1093         else
1094                 node = find_audio_device(device);
1095         if (! node) {
1096                 DBG("(W) cannot find audio device %s !\n", device);
1097                 snd_printdd("cannot find device %s\n", device);
1098                 return -ENODEV;
1099         }
1100
1101         base = of_get_property(node, "AAPL,address", NULL);
1102         if (! base) {
1103                 base = of_get_property(node, "reg", NULL);
1104                 if (!base) {
1105                         DBG("(E) cannot find address for device %s !\n", device);
1106                         snd_printd("cannot find address for device %s\n", device);
1107                         of_node_put(node);
1108                         return -ENODEV;
1109                 }
1110                 addr = *base;
1111                 if (addr < 0x50)
1112                         addr += 0x50;
1113         } else
1114                 addr = *base;
1115
1116         gp->addr = addr & 0x0000ffff;
1117         /* Try to find the active state, default to 0 ! */
1118         base = of_get_property(node, "audio-gpio-active-state", NULL);
1119         if (base) {
1120                 gp->active_state = *base;
1121                 gp->active_val = (*base) ? 0x5 : 0x4;
1122                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1123         } else {
1124                 const u32 *prop = NULL;
1125                 gp->active_state = IS_G4DA
1126                                 && !strncmp(device, "keywest-gpio1", 13);
1127                 gp->active_val = 0x4;
1128                 gp->inactive_val = 0x5;
1129                 /* Here are some crude hacks to extract the GPIO polarity and
1130                  * open collector informations out of the do-platform script
1131                  * as we don't yet have an interpreter for these things
1132                  */
1133                 if (platform)
1134                         prop = of_get_property(node, platform, NULL);
1135                 if (prop) {
1136                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1137                                 gp->active_val = 0xd;
1138                                 gp->inactive_val = 0xc;
1139                         }
1140                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1141                                 gp->active_val = 0x5;
1142                                 gp->inactive_val = 0x4;
1143                         }
1144                 }
1145         }
1146
1147         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1148             device, gp->addr, gp->active_state);
1149
1150         ret = irq_of_parse_and_map(node, 0);
1151         of_node_put(node);
1152         return ret;
1153 }
1154
1155 /* reset audio */
1156 static void tumbler_reset_audio(struct snd_pmac *chip)
1157 {
1158         struct pmac_tumbler *mix = chip->mixer_data;
1159
1160         if (mix->anded_reset) {
1161                 DBG("(I) codec anded reset !\n");
1162                 write_audio_gpio(&mix->hp_mute, 0);
1163                 write_audio_gpio(&mix->amp_mute, 0);
1164                 msleep(200);
1165                 write_audio_gpio(&mix->hp_mute, 1);
1166                 write_audio_gpio(&mix->amp_mute, 1);
1167                 msleep(100);
1168                 write_audio_gpio(&mix->hp_mute, 0);
1169                 write_audio_gpio(&mix->amp_mute, 0);
1170                 msleep(100);
1171         } else {
1172                 DBG("(I) codec normal reset !\n");
1173
1174                 write_audio_gpio(&mix->audio_reset, 0);
1175                 msleep(200);
1176                 write_audio_gpio(&mix->audio_reset, 1);
1177                 msleep(100);
1178                 write_audio_gpio(&mix->audio_reset, 0);
1179                 msleep(100);
1180         }
1181 }
1182
1183 #ifdef CONFIG_PM
1184 /* suspend mixer */
1185 static void tumbler_suspend(struct snd_pmac *chip)
1186 {
1187         struct pmac_tumbler *mix = chip->mixer_data;
1188
1189         if (mix->headphone_irq >= 0)
1190                 disable_irq(mix->headphone_irq);
1191         if (mix->lineout_irq >= 0)
1192                 disable_irq(mix->lineout_irq);
1193         mix->save_master_switch[0] = mix->master_switch[0];
1194         mix->save_master_switch[1] = mix->master_switch[1];
1195         mix->save_master_vol[0] = mix->master_vol[0];
1196         mix->save_master_vol[1] = mix->master_vol[1];
1197         mix->master_switch[0] = mix->master_switch[1] = 0;
1198         tumbler_set_master_volume(mix);
1199         if (!mix->anded_reset) {
1200                 write_audio_gpio(&mix->amp_mute, 1);
1201                 write_audio_gpio(&mix->hp_mute, 1);
1202         }
1203         if (chip->model == PMAC_SNAPPER) {
1204                 mix->acs |= 1;
1205                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1206         }
1207         if (mix->anded_reset) {
1208                 write_audio_gpio(&mix->amp_mute, 1);
1209                 write_audio_gpio(&mix->hp_mute, 1);
1210         } else
1211                 write_audio_gpio(&mix->audio_reset, 1);
1212 }
1213
1214 /* resume mixer */
1215 static void tumbler_resume(struct snd_pmac *chip)
1216 {
1217         struct pmac_tumbler *mix = chip->mixer_data;
1218
1219         mix->acs &= ~1;
1220         mix->master_switch[0] = mix->save_master_switch[0];
1221         mix->master_switch[1] = mix->save_master_switch[1];
1222         mix->master_vol[0] = mix->save_master_vol[0];
1223         mix->master_vol[1] = mix->save_master_vol[1];
1224         tumbler_reset_audio(chip);
1225         if (mix->i2c.client && mix->i2c.init_client) {
1226                 if (mix->i2c.init_client(&mix->i2c) < 0)
1227                         printk(KERN_ERR "tumbler_init_client error\n");
1228         } else
1229                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1230         if (chip->model == PMAC_TUMBLER) {
1231                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1232                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1233                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1234                 tumbler_set_drc(mix);
1235         } else {
1236                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1237                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1238                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1239                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1240                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1241                 snapper_set_drc(mix);
1242                 snapper_set_capture_source(mix);
1243         }
1244         tumbler_set_master_volume(mix);
1245         if (chip->update_automute)
1246                 chip->update_automute(chip, 0);
1247         if (mix->headphone_irq >= 0) {
1248                 unsigned char val;
1249
1250                 enable_irq(mix->headphone_irq);
1251                 /* activate headphone status interrupts */
1252                 val = do_gpio_read(&mix->hp_detect);
1253                 do_gpio_write(&mix->hp_detect, val | 0x80);
1254         }
1255         if (mix->lineout_irq >= 0)
1256                 enable_irq(mix->lineout_irq);
1257 }
1258 #endif
1259
1260 /* initialize tumbler */
1261 static int tumbler_init(struct snd_pmac *chip)
1262 {
1263         int irq;
1264         struct pmac_tumbler *mix = chip->mixer_data;
1265
1266         if (tumbler_find_device("audio-hw-reset",
1267                                 "platform-do-hw-reset",
1268                                 &mix->audio_reset, 0) < 0)
1269                 tumbler_find_device("hw-reset",
1270                                     "platform-do-hw-reset",
1271                                     &mix->audio_reset, 1);
1272         if (tumbler_find_device("amp-mute",
1273                                 "platform-do-amp-mute",
1274                                 &mix->amp_mute, 0) < 0)
1275                 tumbler_find_device("amp-mute",
1276                                     "platform-do-amp-mute",
1277                                     &mix->amp_mute, 1);
1278         if (tumbler_find_device("headphone-mute",
1279                                 "platform-do-headphone-mute",
1280                                 &mix->hp_mute, 0) < 0)
1281                 tumbler_find_device("headphone-mute",
1282                                     "platform-do-headphone-mute",
1283                                     &mix->hp_mute, 1);
1284         if (tumbler_find_device("line-output-mute",
1285                                 "platform-do-lineout-mute",
1286                                 &mix->line_mute, 0) < 0)
1287                 tumbler_find_device("line-output-mute",
1288                                    "platform-do-lineout-mute",
1289                                     &mix->line_mute, 1);
1290         irq = tumbler_find_device("headphone-detect",
1291                                   NULL, &mix->hp_detect, 0);
1292         if (irq <= 0)
1293                 irq = tumbler_find_device("headphone-detect",
1294                                           NULL, &mix->hp_detect, 1);
1295         if (irq <= 0)
1296                 irq = tumbler_find_device("keywest-gpio15",
1297                                           NULL, &mix->hp_detect, 1);
1298         mix->headphone_irq = irq;
1299         irq = tumbler_find_device("line-output-detect",
1300                                   NULL, &mix->line_detect, 0);
1301         if (irq <= 0)
1302                 irq = tumbler_find_device("line-output-detect",
1303                                           NULL, &mix->line_detect, 1);
1304         if (IS_G4DA && irq <= 0)
1305                 irq = tumbler_find_device("keywest-gpio16",
1306                                           NULL, &mix->line_detect, 1);
1307         mix->lineout_irq = irq;
1308
1309         tumbler_reset_audio(chip);
1310   
1311         return 0;
1312 }
1313
1314 static void tumbler_cleanup(struct snd_pmac *chip)
1315 {
1316         struct pmac_tumbler *mix = chip->mixer_data;
1317         if (! mix)
1318                 return;
1319
1320         if (mix->headphone_irq >= 0)
1321                 free_irq(mix->headphone_irq, chip);
1322         if (mix->lineout_irq >= 0)
1323                 free_irq(mix->lineout_irq, chip);
1324         tumbler_gpio_free(&mix->audio_reset);
1325         tumbler_gpio_free(&mix->amp_mute);
1326         tumbler_gpio_free(&mix->hp_mute);
1327         tumbler_gpio_free(&mix->hp_detect);
1328         snd_pmac_keywest_cleanup(&mix->i2c);
1329         kfree(mix);
1330         chip->mixer_data = NULL;
1331 }
1332
1333 /* exported */
1334 int snd_pmac_tumbler_init(struct snd_pmac *chip)
1335 {
1336         int i, err;
1337         struct pmac_tumbler *mix;
1338         const u32 *paddr;
1339         struct device_node *tas_node, *np;
1340         char *chipname;
1341
1342         request_module("i2c-powermac");
1343
1344         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1345         if (! mix)
1346                 return -ENOMEM;
1347         mix->headphone_irq = -1;
1348
1349         chip->mixer_data = mix;
1350         chip->mixer_free = tumbler_cleanup;
1351         mix->anded_reset = 0;
1352         mix->reset_on_sleep = 1;
1353
1354         for_each_child_of_node(chip->node, np) {
1355                 if (of_node_name_eq(np, "sound")) {
1356                         if (of_get_property(np, "has-anded-reset", NULL))
1357                                 mix->anded_reset = 1;
1358                         if (of_get_property(np, "layout-id", NULL))
1359                                 mix->reset_on_sleep = 0;
1360                         of_node_put(np);
1361                         break;
1362                 }
1363         }
1364         if ((err = tumbler_init(chip)) < 0)
1365                 return err;
1366
1367         /* set up TAS */
1368         tas_node = of_find_node_by_name(NULL, "deq");
1369         if (tas_node == NULL)
1370                 tas_node = of_find_node_by_name(NULL, "codec");
1371         if (tas_node == NULL)
1372                 return -ENODEV;
1373
1374         paddr = of_get_property(tas_node, "i2c-address", NULL);
1375         if (paddr == NULL)
1376                 paddr = of_get_property(tas_node, "reg", NULL);
1377         if (paddr)
1378                 mix->i2c.addr = (*paddr) >> 1;
1379         else
1380                 mix->i2c.addr = TAS_I2C_ADDR;
1381         of_node_put(tas_node);
1382
1383         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1384
1385         if (chip->model == PMAC_TUMBLER) {
1386                 mix->i2c.init_client = tumbler_init_client;
1387                 mix->i2c.name = "TAS3001c";
1388                 chipname = "Tumbler";
1389         } else {
1390                 mix->i2c.init_client = snapper_init_client;
1391                 mix->i2c.name = "TAS3004";
1392                 chipname = "Snapper";
1393         }
1394
1395         if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1396                 return err;
1397
1398         /*
1399          * build mixers
1400          */
1401         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1402
1403         if (chip->model == PMAC_TUMBLER) {
1404                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1405                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1406                                 return err;
1407                 }
1408         } else {
1409                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1410                         if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1411                                 return err;
1412                 }
1413         }
1414         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1415         if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1416                 return err;
1417         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1418         if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1419                 return err;
1420         if (mix->line_mute.addr != 0) {
1421                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1422                 if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1423                         return err;
1424         }
1425         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1426         if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1427                 return err;
1428
1429         /* set initial DRC range to 60% */
1430         if (chip->model == PMAC_TUMBLER)
1431                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1432         else
1433                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1434         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1435         if (chip->model == PMAC_TUMBLER)
1436                 tumbler_set_drc(mix);
1437         else
1438                 snapper_set_drc(mix);
1439
1440 #ifdef CONFIG_PM
1441         chip->suspend = tumbler_suspend;
1442         chip->resume = tumbler_resume;
1443 #endif
1444
1445         INIT_WORK(&device_change, device_change_handler);
1446         device_change_chip = chip;
1447
1448 #ifdef PMAC_SUPPORT_AUTOMUTE
1449         if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1450             && (err = snd_pmac_add_automute(chip)) < 0)
1451                 return err;
1452         chip->detect_headphone = tumbler_detect_headphone;
1453         chip->update_automute = tumbler_update_automute;
1454         tumbler_update_automute(chip, 0); /* update the status only */
1455
1456         /* activate headphone status interrupts */
1457         if (mix->headphone_irq >= 0) {
1458                 unsigned char val;
1459                 if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1460                                        "Sound Headphone Detection", chip)) < 0)
1461                         return 0;
1462                 /* activate headphone status interrupts */
1463                 val = do_gpio_read(&mix->hp_detect);
1464                 do_gpio_write(&mix->hp_detect, val | 0x80);
1465         }
1466         if (mix->lineout_irq >= 0) {
1467                 unsigned char val;
1468                 if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1469                                        "Sound Lineout Detection", chip)) < 0)
1470                         return 0;
1471                 /* activate headphone status interrupts */
1472                 val = do_gpio_read(&mix->line_detect);
1473                 do_gpio_write(&mix->line_detect, val | 0x80);
1474         }
1475 #endif
1476
1477         return 0;
1478 }