Merge tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
[platform/kernel/linux-starfive.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         mix = chip->mixer_data;
406         if (!mix)
407                 return -ENODEV;
408         ucontrol->value.integer.value[0] = mix->drc_range;
409         return 0;
410 }
411
412 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
413                                  struct snd_ctl_elem_value *ucontrol)
414 {
415         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
416         struct pmac_tumbler *mix;
417         unsigned int val;
418         int change;
419
420         mix = chip->mixer_data;
421         if (!mix)
422                 return -ENODEV;
423         val = ucontrol->value.integer.value[0];
424         if (chip->model == PMAC_TUMBLER) {
425                 if (val > TAS3001_DRC_MAX)
426                         return -EINVAL;
427         } else {
428                 if (val > TAS3004_DRC_MAX)
429                         return -EINVAL;
430         }
431         change = mix->drc_range != val;
432         if (change) {
433                 mix->drc_range = val;
434                 if (chip->model == PMAC_TUMBLER)
435                         tumbler_set_drc(mix);
436                 else
437                         snapper_set_drc(mix);
438         }
439         return change;
440 }
441
442 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
443                                   struct snd_ctl_elem_value *ucontrol)
444 {
445         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
446         struct pmac_tumbler *mix;
447         mix = chip->mixer_data;
448         if (!mix)
449                 return -ENODEV;
450         ucontrol->value.integer.value[0] = mix->drc_enable;
451         return 0;
452 }
453
454 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
455                                   struct snd_ctl_elem_value *ucontrol)
456 {
457         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
458         struct pmac_tumbler *mix;
459         int change;
460
461         mix = chip->mixer_data;
462         if (!mix)
463                 return -ENODEV;
464         change = mix->drc_enable != ucontrol->value.integer.value[0];
465         if (change) {
466                 mix->drc_enable = !!ucontrol->value.integer.value[0];
467                 if (chip->model == PMAC_TUMBLER)
468                         tumbler_set_drc(mix);
469                 else
470                         snapper_set_drc(mix);
471         }
472         return change;
473 }
474
475
476 /*
477  * mono volumes
478  */
479
480 struct tumbler_mono_vol {
481         int index;
482         int reg;
483         int bytes;
484         unsigned int max;
485         const unsigned int *table;
486 };
487
488 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
489                                    const struct tumbler_mono_vol *info)
490 {
491         unsigned char block[4];
492         unsigned int vol;
493         int i;
494   
495         if (! mix->i2c.client)
496                 return -ENODEV;
497   
498         vol = mix->mono_vol[info->index];
499         if (vol >= info->max)
500                 vol = info->max - 1;
501         vol = info->table[vol];
502         for (i = 0; i < info->bytes; i++)
503                 block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
504         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
505                                            info->bytes, block) < 0) {
506                 snd_printk(KERN_ERR "failed to set mono volume %d\n",
507                            info->index);
508                 return -EINVAL;
509         }
510         return 0;
511 }
512
513 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
514                              struct snd_ctl_elem_info *uinfo)
515 {
516         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
517
518         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
519         uinfo->count = 1;
520         uinfo->value.integer.min = 0;
521         uinfo->value.integer.max = info->max - 1;
522         return 0;
523 }
524
525 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
526                             struct snd_ctl_elem_value *ucontrol)
527 {
528         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
529         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
530         struct pmac_tumbler *mix;
531         mix = chip->mixer_data;
532         if (!mix)
533                 return -ENODEV;
534         ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
535         return 0;
536 }
537
538 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
539                             struct snd_ctl_elem_value *ucontrol)
540 {
541         struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
542         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
543         struct pmac_tumbler *mix;
544         unsigned int vol;
545         int change;
546
547         mix = chip->mixer_data;
548         if (!mix)
549                 return -ENODEV;
550         vol = ucontrol->value.integer.value[0];
551         if (vol >= info->max)
552                 return -EINVAL;
553         change = mix->mono_vol[info->index] != vol;
554         if (change) {
555                 mix->mono_vol[info->index] = vol;
556                 tumbler_set_mono_volume(mix, info);
557         }
558         return change;
559 }
560
561 /* TAS3001c mono volumes */
562 static const struct tumbler_mono_vol tumbler_pcm_vol_info = {
563         .index = VOL_IDX_PCM_MONO,
564         .reg = TAS_REG_PCM,
565         .bytes = 3,
566         .max = ARRAY_SIZE(mixer_volume_table),
567         .table = mixer_volume_table,
568 };
569
570 static const struct tumbler_mono_vol tumbler_bass_vol_info = {
571         .index = VOL_IDX_BASS,
572         .reg = TAS_REG_BASS,
573         .bytes = 1,
574         .max = ARRAY_SIZE(bass_volume_table),
575         .table = bass_volume_table,
576 };
577
578 static const struct tumbler_mono_vol tumbler_treble_vol_info = {
579         .index = VOL_IDX_TREBLE,
580         .reg = TAS_REG_TREBLE,
581         .bytes = 1,
582         .max = ARRAY_SIZE(treble_volume_table),
583         .table = treble_volume_table,
584 };
585
586 /* TAS3004 mono volumes */
587 static const struct tumbler_mono_vol snapper_bass_vol_info = {
588         .index = VOL_IDX_BASS,
589         .reg = TAS_REG_BASS,
590         .bytes = 1,
591         .max = ARRAY_SIZE(snapper_bass_volume_table),
592         .table = snapper_bass_volume_table,
593 };
594
595 static const struct tumbler_mono_vol snapper_treble_vol_info = {
596         .index = VOL_IDX_TREBLE,
597         .reg = TAS_REG_TREBLE,
598         .bytes = 1,
599         .max = ARRAY_SIZE(snapper_treble_volume_table),
600         .table = snapper_treble_volume_table,
601 };
602
603
604 #define DEFINE_MONO(xname,type) { \
605         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
606         .name = xname, \
607         .info = tumbler_info_mono, \
608         .get = tumbler_get_mono, \
609         .put = tumbler_put_mono, \
610         .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
611 }
612
613 #define DEFINE_SNAPPER_MONO(xname,type) { \
614         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
615         .name = xname, \
616         .info = tumbler_info_mono, \
617         .get = tumbler_get_mono, \
618         .put = tumbler_put_mono, \
619         .private_value = (unsigned long)(&snapper_##type##_vol_info), \
620 }
621
622
623 /*
624  * snapper mixer volumes
625  */
626
627 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
628 {
629         int i, j, vol;
630         unsigned char block[9];
631
632         vol = mix->mix_vol[idx][ch];
633         if (vol >= ARRAY_SIZE(mixer_volume_table)) {
634                 vol = ARRAY_SIZE(mixer_volume_table) - 1;
635                 mix->mix_vol[idx][ch] = vol;
636         }
637
638         for (i = 0; i < 3; i++) {
639                 vol = mix->mix_vol[i][ch];
640                 vol = mixer_volume_table[vol];
641                 for (j = 0; j < 3; j++)
642                         block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
643         }
644         if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
645                                            9, block) < 0) {
646                 snd_printk(KERN_ERR "failed to set mono volume %d\n", reg);
647                 return -EINVAL;
648         }
649         return 0;
650 }
651
652 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
653 {
654         if (! mix->i2c.client)
655                 return -ENODEV;
656         if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
657             snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
658                 return -EINVAL;
659         return 0;
660 }
661
662 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
663                             struct snd_ctl_elem_info *uinfo)
664 {
665         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
666         uinfo->count = 2;
667         uinfo->value.integer.min = 0;
668         uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
669         return 0;
670 }
671
672 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
673                            struct snd_ctl_elem_value *ucontrol)
674 {
675         int idx = (int)kcontrol->private_value;
676         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
677         struct pmac_tumbler *mix;
678         mix = chip->mixer_data;
679         if (!mix)
680                 return -ENODEV;
681         ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
682         ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
683         return 0;
684 }
685
686 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
687                            struct snd_ctl_elem_value *ucontrol)
688 {
689         int idx = (int)kcontrol->private_value;
690         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
691         struct pmac_tumbler *mix;
692         unsigned int vol[2];
693         int change;
694
695         mix = chip->mixer_data;
696         if (!mix)
697                 return -ENODEV;
698         vol[0] = ucontrol->value.integer.value[0];
699         vol[1] = ucontrol->value.integer.value[1];
700         if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
701             vol[1] >= ARRAY_SIZE(mixer_volume_table))
702                 return -EINVAL;
703         change = mix->mix_vol[idx][0] != vol[0] ||
704                 mix->mix_vol[idx][1] != vol[1];
705         if (change) {
706                 mix->mix_vol[idx][0] = vol[0];
707                 mix->mix_vol[idx][1] = vol[1];
708                 snapper_set_mix_vol(mix, idx);
709         }
710         return change;
711 }
712
713
714 /*
715  * mute switches. FIXME: Turn that into software mute when both outputs are muted
716  * to avoid codec reset on ibook M7
717  */
718
719 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
720
721 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
722                                    struct snd_ctl_elem_value *ucontrol)
723 {
724         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
725         struct pmac_tumbler *mix;
726         struct pmac_gpio *gp;
727         mix = chip->mixer_data;
728         if (!mix)
729                 return -ENODEV;
730         switch(kcontrol->private_value) {
731         case TUMBLER_MUTE_HP:
732                 gp = &mix->hp_mute;     break;
733         case TUMBLER_MUTE_AMP:
734                 gp = &mix->amp_mute;    break;
735         case TUMBLER_MUTE_LINE:
736                 gp = &mix->line_mute;   break;
737         default:
738                 gp = NULL;
739         }
740         if (gp == NULL)
741                 return -EINVAL;
742         ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
743         return 0;
744 }
745
746 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
747                                    struct snd_ctl_elem_value *ucontrol)
748 {
749         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
750         struct pmac_tumbler *mix;
751         struct pmac_gpio *gp;
752         int val;
753 #ifdef PMAC_SUPPORT_AUTOMUTE
754         if (chip->update_automute && chip->auto_mute)
755                 return 0; /* don't touch in the auto-mute mode */
756 #endif  
757         mix = chip->mixer_data;
758         if (!mix)
759                 return -ENODEV;
760         switch(kcontrol->private_value) {
761         case TUMBLER_MUTE_HP:
762                 gp = &mix->hp_mute;     break;
763         case TUMBLER_MUTE_AMP:
764                 gp = &mix->amp_mute;    break;
765         case TUMBLER_MUTE_LINE:
766                 gp = &mix->line_mute;   break;
767         default:
768                 gp = NULL;
769         }
770         if (gp == NULL)
771                 return -EINVAL;
772         val = ! check_audio_gpio(gp);
773         if (val != ucontrol->value.integer.value[0]) {
774                 write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
775                 return 1;
776         }
777         return 0;
778 }
779
780 static int snapper_set_capture_source(struct pmac_tumbler *mix)
781 {
782         if (! mix->i2c.client)
783                 return -ENODEV;
784         if (mix->capture_source)
785                 mix->acs |= 2;
786         else
787                 mix->acs &= ~2;
788         return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
789 }
790
791 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
792                                        struct snd_ctl_elem_info *uinfo)
793 {
794         static const char * const texts[2] = {
795                 "Line", "Mic"
796         };
797
798         return snd_ctl_enum_info(uinfo, 1, 2, texts);
799 }
800
801 static int snapper_get_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
807         ucontrol->value.enumerated.item[0] = mix->capture_source;
808         return 0;
809 }
810
811 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
812                                       struct snd_ctl_elem_value *ucontrol)
813 {
814         struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
815         struct pmac_tumbler *mix = chip->mixer_data;
816         int change;
817
818         change = ucontrol->value.enumerated.item[0] != mix->capture_source;
819         if (change) {
820                 mix->capture_source = !!ucontrol->value.enumerated.item[0];
821                 snapper_set_capture_source(mix);
822         }
823         return change;
824 }
825
826 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
827         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
828         .name = xname, \
829         .info = snapper_info_mix, \
830         .get = snapper_get_mix, \
831         .put = snapper_put_mix, \
832         .index = idx,\
833         .private_value = ofs, \
834 }
835
836
837 /*
838  */
839 static const struct snd_kcontrol_new tumbler_mixers[] = {
840         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
841           .name = "Master Playback Volume",
842           .info = tumbler_info_master_volume,
843           .get = tumbler_get_master_volume,
844           .put = tumbler_put_master_volume
845         },
846         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
847           .name = "Master Playback Switch",
848           .info = snd_pmac_boolean_stereo_info,
849           .get = tumbler_get_master_switch,
850           .put = tumbler_put_master_switch
851         },
852         DEFINE_MONO("Tone Control - Bass", bass),
853         DEFINE_MONO("Tone Control - Treble", treble),
854         DEFINE_MONO("PCM Playback Volume", pcm),
855         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
856           .name = "DRC Range",
857           .info = tumbler_info_drc_value,
858           .get = tumbler_get_drc_value,
859           .put = tumbler_put_drc_value
860         },
861 };
862
863 static const struct snd_kcontrol_new snapper_mixers[] = {
864         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
865           .name = "Master Playback Volume",
866           .info = tumbler_info_master_volume,
867           .get = tumbler_get_master_volume,
868           .put = tumbler_put_master_volume
869         },
870         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
871           .name = "Master Playback Switch",
872           .info = snd_pmac_boolean_stereo_info,
873           .get = tumbler_get_master_switch,
874           .put = tumbler_put_master_switch
875         },
876         DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
877         /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
878         DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
879         DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
880         DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
881         DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
882         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
883           .name = "DRC Range",
884           .info = tumbler_info_drc_value,
885           .get = tumbler_get_drc_value,
886           .put = tumbler_put_drc_value
887         },
888         { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
889           .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
890           .info = snapper_info_capture_source,
891           .get = snapper_get_capture_source,
892           .put = snapper_put_capture_source
893         },
894 };
895
896 static const struct snd_kcontrol_new tumbler_hp_sw = {
897         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
898         .name = "Headphone Playback Switch",
899         .info = snd_pmac_boolean_mono_info,
900         .get = tumbler_get_mute_switch,
901         .put = tumbler_put_mute_switch,
902         .private_value = TUMBLER_MUTE_HP,
903 };
904 static const struct snd_kcontrol_new tumbler_speaker_sw = {
905         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
906         .name = "Speaker Playback Switch",
907         .info = snd_pmac_boolean_mono_info,
908         .get = tumbler_get_mute_switch,
909         .put = tumbler_put_mute_switch,
910         .private_value = TUMBLER_MUTE_AMP,
911 };
912 static const struct snd_kcontrol_new tumbler_lineout_sw = {
913         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
914         .name = "Line Out Playback Switch",
915         .info = snd_pmac_boolean_mono_info,
916         .get = tumbler_get_mute_switch,
917         .put = tumbler_put_mute_switch,
918         .private_value = TUMBLER_MUTE_LINE,
919 };
920 static const struct snd_kcontrol_new tumbler_drc_sw = {
921         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
922         .name = "DRC Switch",
923         .info = snd_pmac_boolean_mono_info,
924         .get = tumbler_get_drc_switch,
925         .put = tumbler_put_drc_switch
926 };
927
928
929 #ifdef PMAC_SUPPORT_AUTOMUTE
930 /*
931  * auto-mute stuffs
932  */
933 static int tumbler_detect_headphone(struct snd_pmac *chip)
934 {
935         struct pmac_tumbler *mix = chip->mixer_data;
936         int detect = 0;
937
938         if (mix->hp_detect.addr)
939                 detect |= read_audio_gpio(&mix->hp_detect);
940         return detect;
941 }
942
943 static int tumbler_detect_lineout(struct snd_pmac *chip)
944 {
945         struct pmac_tumbler *mix = chip->mixer_data;
946         int detect = 0;
947
948         if (mix->line_detect.addr)
949                 detect |= read_audio_gpio(&mix->line_detect);
950         return detect;
951 }
952
953 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
954                        struct snd_kcontrol *sw)
955 {
956         if (check_audio_gpio(gp) != val) {
957                 write_audio_gpio(gp, val);
958                 if (do_notify)
959                         snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
960                                        &sw->id);
961         }
962 }
963
964 static struct work_struct device_change;
965 static struct snd_pmac *device_change_chip;
966
967 static void device_change_handler(struct work_struct *work)
968 {
969         struct snd_pmac *chip = device_change_chip;
970         struct pmac_tumbler *mix;
971         int headphone, lineout;
972
973         if (!chip)
974                 return;
975
976         mix = chip->mixer_data;
977         if (snd_BUG_ON(!mix))
978                 return;
979
980         headphone = tumbler_detect_headphone(chip);
981         lineout = tumbler_detect_lineout(chip);
982
983         DBG("headphone: %d, lineout: %d\n", headphone, lineout);
984
985         if (headphone || lineout) {
986                 /* unmute headphone/lineout & mute speaker */
987                 if (headphone)
988                         check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
989                                    chip->master_sw_ctl);
990                 if (lineout && mix->line_mute.addr != 0)
991                         check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
992                                    chip->lineout_sw_ctl);
993                 if (mix->anded_reset)
994                         msleep(10);
995                 check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify,
996                            chip->speaker_sw_ctl);
997         } else {
998                 /* unmute speaker, mute others */
999                 check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1000                            chip->speaker_sw_ctl);
1001                 if (mix->anded_reset)
1002                         msleep(10);
1003                 check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1004                            chip->master_sw_ctl);
1005                 if (mix->line_mute.addr != 0)
1006                         check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1007                                    chip->lineout_sw_ctl);
1008         }
1009         if (mix->auto_mute_notify)
1010                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1011                                        &chip->hp_detect_ctl->id);
1012
1013 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1014         mix->drc_enable = ! (headphone || lineout);
1015         if (mix->auto_mute_notify)
1016                 snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1017                                &chip->drc_sw_ctl->id);
1018         if (chip->model == PMAC_TUMBLER)
1019                 tumbler_set_drc(mix);
1020         else
1021                 snapper_set_drc(mix);
1022 #endif
1023
1024         /* reset the master volume so the correct amplification is applied */
1025         tumbler_set_master_volume(mix);
1026 }
1027
1028 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1029 {
1030         if (chip->auto_mute) {
1031                 struct pmac_tumbler *mix;
1032                 mix = chip->mixer_data;
1033                 if (snd_BUG_ON(!mix))
1034                         return;
1035                 mix->auto_mute_notify = do_notify;
1036                 schedule_work(&device_change);
1037         }
1038 }
1039 #endif /* PMAC_SUPPORT_AUTOMUTE */
1040
1041
1042 /* interrupt - headphone plug changed */
1043 static irqreturn_t headphone_intr(int irq, void *devid)
1044 {
1045         struct snd_pmac *chip = devid;
1046         if (chip->update_automute && chip->initialized) {
1047                 chip->update_automute(chip, 1);
1048                 return IRQ_HANDLED;
1049         }
1050         return IRQ_NONE;
1051 }
1052
1053 /* look for audio-gpio device */
1054 static struct device_node *find_audio_device(const char *name)
1055 {
1056         struct device_node *gpiop;
1057         struct device_node *np;
1058   
1059         gpiop = of_find_node_by_name(NULL, "gpio");
1060         if (! gpiop)
1061                 return NULL;
1062   
1063         for (np = of_get_next_child(gpiop, NULL); np;
1064                         np = of_get_next_child(gpiop, np)) {
1065                 const char *property = of_get_property(np, "audio-gpio", NULL);
1066                 if (property && strcmp(property, name) == 0)
1067                         break;
1068         }  
1069         of_node_put(gpiop);
1070         return np;
1071 }
1072
1073 /* look for audio-gpio device */
1074 static struct device_node *find_compatible_audio_device(const char *name)
1075 {
1076         struct device_node *gpiop;
1077         struct device_node *np;
1078   
1079         gpiop = of_find_node_by_name(NULL, "gpio");
1080         if (!gpiop)
1081                 return NULL;
1082   
1083         for (np = of_get_next_child(gpiop, NULL); np;
1084                         np = of_get_next_child(gpiop, np)) {
1085                 if (of_device_is_compatible(np, name))
1086                         break;
1087         }  
1088         of_node_put(gpiop);
1089         return np;
1090 }
1091
1092 /* find an audio device and get its address */
1093 static long tumbler_find_device(const char *device, const char *platform,
1094                                 struct pmac_gpio *gp, int is_compatible)
1095 {
1096         struct device_node *node;
1097         const u32 *base;
1098         u32 addr;
1099         long ret;
1100
1101         if (is_compatible)
1102                 node = find_compatible_audio_device(device);
1103         else
1104                 node = find_audio_device(device);
1105         if (! node) {
1106                 DBG("(W) cannot find audio device %s !\n", device);
1107                 snd_printdd("cannot find device %s\n", device);
1108                 return -ENODEV;
1109         }
1110
1111         base = of_get_property(node, "AAPL,address", NULL);
1112         if (! base) {
1113                 base = of_get_property(node, "reg", NULL);
1114                 if (!base) {
1115                         DBG("(E) cannot find address for device %s !\n", device);
1116                         snd_printd("cannot find address for device %s\n", device);
1117                         of_node_put(node);
1118                         return -ENODEV;
1119                 }
1120                 addr = *base;
1121                 if (addr < 0x50)
1122                         addr += 0x50;
1123         } else
1124                 addr = *base;
1125
1126         gp->addr = addr & 0x0000ffff;
1127         /* Try to find the active state, default to 0 ! */
1128         base = of_get_property(node, "audio-gpio-active-state", NULL);
1129         if (base) {
1130                 gp->active_state = *base;
1131                 gp->active_val = (*base) ? 0x5 : 0x4;
1132                 gp->inactive_val = (*base) ? 0x4 : 0x5;
1133         } else {
1134                 const u32 *prop = NULL;
1135                 gp->active_state = IS_G4DA
1136                                 && !strncmp(device, "keywest-gpio1", 13);
1137                 gp->active_val = 0x4;
1138                 gp->inactive_val = 0x5;
1139                 /* Here are some crude hacks to extract the GPIO polarity and
1140                  * open collector informations out of the do-platform script
1141                  * as we don't yet have an interpreter for these things
1142                  */
1143                 if (platform)
1144                         prop = of_get_property(node, platform, NULL);
1145                 if (prop) {
1146                         if (prop[3] == 0x9 && prop[4] == 0x9) {
1147                                 gp->active_val = 0xd;
1148                                 gp->inactive_val = 0xc;
1149                         }
1150                         if (prop[3] == 0x1 && prop[4] == 0x1) {
1151                                 gp->active_val = 0x5;
1152                                 gp->inactive_val = 0x4;
1153                         }
1154                 }
1155         }
1156
1157         DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1158             device, gp->addr, gp->active_state);
1159
1160         ret = irq_of_parse_and_map(node, 0);
1161         of_node_put(node);
1162         return ret;
1163 }
1164
1165 /* reset audio */
1166 static void tumbler_reset_audio(struct snd_pmac *chip)
1167 {
1168         struct pmac_tumbler *mix = chip->mixer_data;
1169
1170         if (mix->anded_reset) {
1171                 DBG("(I) codec anded reset !\n");
1172                 write_audio_gpio(&mix->hp_mute, 0);
1173                 write_audio_gpio(&mix->amp_mute, 0);
1174                 msleep(200);
1175                 write_audio_gpio(&mix->hp_mute, 1);
1176                 write_audio_gpio(&mix->amp_mute, 1);
1177                 msleep(100);
1178                 write_audio_gpio(&mix->hp_mute, 0);
1179                 write_audio_gpio(&mix->amp_mute, 0);
1180                 msleep(100);
1181         } else {
1182                 DBG("(I) codec normal reset !\n");
1183
1184                 write_audio_gpio(&mix->audio_reset, 0);
1185                 msleep(200);
1186                 write_audio_gpio(&mix->audio_reset, 1);
1187                 msleep(100);
1188                 write_audio_gpio(&mix->audio_reset, 0);
1189                 msleep(100);
1190         }
1191 }
1192
1193 #ifdef CONFIG_PM
1194 /* suspend mixer */
1195 static void tumbler_suspend(struct snd_pmac *chip)
1196 {
1197         struct pmac_tumbler *mix = chip->mixer_data;
1198
1199         if (mix->headphone_irq >= 0)
1200                 disable_irq(mix->headphone_irq);
1201         if (mix->lineout_irq >= 0)
1202                 disable_irq(mix->lineout_irq);
1203         mix->save_master_switch[0] = mix->master_switch[0];
1204         mix->save_master_switch[1] = mix->master_switch[1];
1205         mix->save_master_vol[0] = mix->master_vol[0];
1206         mix->save_master_vol[1] = mix->master_vol[1];
1207         mix->master_switch[0] = mix->master_switch[1] = 0;
1208         tumbler_set_master_volume(mix);
1209         if (!mix->anded_reset) {
1210                 write_audio_gpio(&mix->amp_mute, 1);
1211                 write_audio_gpio(&mix->hp_mute, 1);
1212         }
1213         if (chip->model == PMAC_SNAPPER) {
1214                 mix->acs |= 1;
1215                 i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1216         }
1217         if (mix->anded_reset) {
1218                 write_audio_gpio(&mix->amp_mute, 1);
1219                 write_audio_gpio(&mix->hp_mute, 1);
1220         } else
1221                 write_audio_gpio(&mix->audio_reset, 1);
1222 }
1223
1224 /* resume mixer */
1225 static void tumbler_resume(struct snd_pmac *chip)
1226 {
1227         struct pmac_tumbler *mix = chip->mixer_data;
1228
1229         mix->acs &= ~1;
1230         mix->master_switch[0] = mix->save_master_switch[0];
1231         mix->master_switch[1] = mix->save_master_switch[1];
1232         mix->master_vol[0] = mix->save_master_vol[0];
1233         mix->master_vol[1] = mix->save_master_vol[1];
1234         tumbler_reset_audio(chip);
1235         if (mix->i2c.client && mix->i2c.init_client) {
1236                 if (mix->i2c.init_client(&mix->i2c) < 0)
1237                         printk(KERN_ERR "tumbler_init_client error\n");
1238         } else
1239                 printk(KERN_ERR "tumbler: i2c is not initialized\n");
1240         if (chip->model == PMAC_TUMBLER) {
1241                 tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1242                 tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1243                 tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1244                 tumbler_set_drc(mix);
1245         } else {
1246                 snapper_set_mix_vol(mix, VOL_IDX_PCM);
1247                 snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1248                 snapper_set_mix_vol(mix, VOL_IDX_ADC);
1249                 tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1250                 tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1251                 snapper_set_drc(mix);
1252                 snapper_set_capture_source(mix);
1253         }
1254         tumbler_set_master_volume(mix);
1255         if (chip->update_automute)
1256                 chip->update_automute(chip, 0);
1257         if (mix->headphone_irq >= 0) {
1258                 unsigned char val;
1259
1260                 enable_irq(mix->headphone_irq);
1261                 /* activate headphone status interrupts */
1262                 val = do_gpio_read(&mix->hp_detect);
1263                 do_gpio_write(&mix->hp_detect, val | 0x80);
1264         }
1265         if (mix->lineout_irq >= 0)
1266                 enable_irq(mix->lineout_irq);
1267 }
1268 #endif
1269
1270 /* initialize tumbler */
1271 static int tumbler_init(struct snd_pmac *chip)
1272 {
1273         int irq;
1274         struct pmac_tumbler *mix = chip->mixer_data;
1275
1276         if (tumbler_find_device("audio-hw-reset",
1277                                 "platform-do-hw-reset",
1278                                 &mix->audio_reset, 0) < 0)
1279                 tumbler_find_device("hw-reset",
1280                                     "platform-do-hw-reset",
1281                                     &mix->audio_reset, 1);
1282         if (tumbler_find_device("amp-mute",
1283                                 "platform-do-amp-mute",
1284                                 &mix->amp_mute, 0) < 0)
1285                 tumbler_find_device("amp-mute",
1286                                     "platform-do-amp-mute",
1287                                     &mix->amp_mute, 1);
1288         if (tumbler_find_device("headphone-mute",
1289                                 "platform-do-headphone-mute",
1290                                 &mix->hp_mute, 0) < 0)
1291                 tumbler_find_device("headphone-mute",
1292                                     "platform-do-headphone-mute",
1293                                     &mix->hp_mute, 1);
1294         if (tumbler_find_device("line-output-mute",
1295                                 "platform-do-lineout-mute",
1296                                 &mix->line_mute, 0) < 0)
1297                 tumbler_find_device("line-output-mute",
1298                                    "platform-do-lineout-mute",
1299                                     &mix->line_mute, 1);
1300         irq = tumbler_find_device("headphone-detect",
1301                                   NULL, &mix->hp_detect, 0);
1302         if (irq <= 0)
1303                 irq = tumbler_find_device("headphone-detect",
1304                                           NULL, &mix->hp_detect, 1);
1305         if (irq <= 0)
1306                 irq = tumbler_find_device("keywest-gpio15",
1307                                           NULL, &mix->hp_detect, 1);
1308         mix->headphone_irq = irq;
1309         irq = tumbler_find_device("line-output-detect",
1310                                   NULL, &mix->line_detect, 0);
1311         if (irq <= 0)
1312                 irq = tumbler_find_device("line-output-detect",
1313                                           NULL, &mix->line_detect, 1);
1314         if (IS_G4DA && irq <= 0)
1315                 irq = tumbler_find_device("keywest-gpio16",
1316                                           NULL, &mix->line_detect, 1);
1317         mix->lineout_irq = irq;
1318
1319         tumbler_reset_audio(chip);
1320   
1321         return 0;
1322 }
1323
1324 static void tumbler_cleanup(struct snd_pmac *chip)
1325 {
1326         struct pmac_tumbler *mix = chip->mixer_data;
1327         if (! mix)
1328                 return;
1329
1330         if (mix->headphone_irq >= 0)
1331                 free_irq(mix->headphone_irq, chip);
1332         if (mix->lineout_irq >= 0)
1333                 free_irq(mix->lineout_irq, chip);
1334         tumbler_gpio_free(&mix->audio_reset);
1335         tumbler_gpio_free(&mix->amp_mute);
1336         tumbler_gpio_free(&mix->hp_mute);
1337         tumbler_gpio_free(&mix->hp_detect);
1338         snd_pmac_keywest_cleanup(&mix->i2c);
1339         kfree(mix);
1340         chip->mixer_data = NULL;
1341 }
1342
1343 /* exported */
1344 int snd_pmac_tumbler_init(struct snd_pmac *chip)
1345 {
1346         int i, err;
1347         struct pmac_tumbler *mix;
1348         const u32 *paddr;
1349         struct device_node *tas_node, *np;
1350         char *chipname;
1351
1352         request_module("i2c-powermac");
1353
1354         mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1355         if (! mix)
1356                 return -ENOMEM;
1357         mix->headphone_irq = -1;
1358
1359         chip->mixer_data = mix;
1360         chip->mixer_free = tumbler_cleanup;
1361         mix->anded_reset = 0;
1362         mix->reset_on_sleep = 1;
1363
1364         for_each_child_of_node(chip->node, np) {
1365                 if (of_node_name_eq(np, "sound")) {
1366                         if (of_get_property(np, "has-anded-reset", NULL))
1367                                 mix->anded_reset = 1;
1368                         if (of_get_property(np, "layout-id", NULL))
1369                                 mix->reset_on_sleep = 0;
1370                         of_node_put(np);
1371                         break;
1372                 }
1373         }
1374         err = tumbler_init(chip);
1375         if (err < 0)
1376                 return err;
1377
1378         /* set up TAS */
1379         tas_node = of_find_node_by_name(NULL, "deq");
1380         if (tas_node == NULL)
1381                 tas_node = of_find_node_by_name(NULL, "codec");
1382         if (tas_node == NULL)
1383                 return -ENODEV;
1384
1385         paddr = of_get_property(tas_node, "i2c-address", NULL);
1386         if (paddr == NULL)
1387                 paddr = of_get_property(tas_node, "reg", NULL);
1388         if (paddr)
1389                 mix->i2c.addr = (*paddr) >> 1;
1390         else
1391                 mix->i2c.addr = TAS_I2C_ADDR;
1392         of_node_put(tas_node);
1393
1394         DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1395
1396         if (chip->model == PMAC_TUMBLER) {
1397                 mix->i2c.init_client = tumbler_init_client;
1398                 mix->i2c.name = "TAS3001c";
1399                 chipname = "Tumbler";
1400         } else {
1401                 mix->i2c.init_client = snapper_init_client;
1402                 mix->i2c.name = "TAS3004";
1403                 chipname = "Snapper";
1404         }
1405
1406         err = snd_pmac_keywest_init(&mix->i2c);
1407         if (err < 0)
1408                 return err;
1409
1410         /*
1411          * build mixers
1412          */
1413         sprintf(chip->card->mixername, "PowerMac %s", chipname);
1414
1415         if (chip->model == PMAC_TUMBLER) {
1416                 for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1417                         err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip));
1418                         if (err < 0)
1419                                 return err;
1420                 }
1421         } else {
1422                 for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1423                         err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip));
1424                         if (err < 0)
1425                                 return err;
1426                 }
1427         }
1428         chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1429         err = snd_ctl_add(chip->card, chip->master_sw_ctl);
1430         if (err < 0)
1431                 return err;
1432         chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1433         err = snd_ctl_add(chip->card, chip->speaker_sw_ctl);
1434         if (err < 0)
1435                 return err;
1436         if (mix->line_mute.addr != 0) {
1437                 chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1438                 err = snd_ctl_add(chip->card, chip->lineout_sw_ctl);
1439                 if (err < 0)
1440                         return err;
1441         }
1442         chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1443         err = snd_ctl_add(chip->card, chip->drc_sw_ctl);
1444         if (err < 0)
1445                 return err;
1446
1447         /* set initial DRC range to 60% */
1448         if (chip->model == PMAC_TUMBLER)
1449                 mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1450         else
1451                 mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1452         mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1453         if (chip->model == PMAC_TUMBLER)
1454                 tumbler_set_drc(mix);
1455         else
1456                 snapper_set_drc(mix);
1457
1458 #ifdef CONFIG_PM
1459         chip->suspend = tumbler_suspend;
1460         chip->resume = tumbler_resume;
1461 #endif
1462
1463         INIT_WORK(&device_change, device_change_handler);
1464         device_change_chip = chip;
1465
1466 #ifdef PMAC_SUPPORT_AUTOMUTE
1467         if (mix->headphone_irq >= 0 || mix->lineout_irq >= 0) {
1468                 err = snd_pmac_add_automute(chip);
1469                 if (err < 0)
1470                         return err;
1471         }
1472         chip->detect_headphone = tumbler_detect_headphone;
1473         chip->update_automute = tumbler_update_automute;
1474         tumbler_update_automute(chip, 0); /* update the status only */
1475
1476         /* activate headphone status interrupts */
1477         if (mix->headphone_irq >= 0) {
1478                 unsigned char val;
1479                 err = request_irq(mix->headphone_irq, headphone_intr, 0,
1480                                   "Sound Headphone Detection", chip);
1481                 if (err < 0)
1482                         return 0;
1483                 /* activate headphone status interrupts */
1484                 val = do_gpio_read(&mix->hp_detect);
1485                 do_gpio_write(&mix->hp_detect, val | 0x80);
1486         }
1487         if (mix->lineout_irq >= 0) {
1488                 unsigned char val;
1489                 err = request_irq(mix->lineout_irq, headphone_intr, 0,
1490                                   "Sound Lineout Detection", chip);
1491                 if (err < 0)
1492                         return 0;
1493                 /* activate headphone status interrupts */
1494                 val = do_gpio_read(&mix->line_detect);
1495                 do_gpio_write(&mix->line_detect, val | 0x80);
1496         }
1497 #endif
1498
1499         return 0;
1500 }