Root/sound/ppc/tumbler.c

1/*
2 * PMac Tumbler/Snapper lowlevel functions
3 *
4 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 * Rene Rebe <rene.rebe@gmx.net>:
21 * * update from shadow registers on wakeup and headphone plug
22 * * automatically toggle DRC on headphone plug
23 *
24 */
25
26
27#include <linux/init.h>
28#include <linux/delay.h>
29#include <linux/i2c.h>
30#include <linux/kmod.h>
31#include <linux/slab.h>
32#include <linux/interrupt.h>
33#include <linux/string.h>
34#include <sound/core.h>
35#include <asm/io.h>
36#include <asm/irq.h>
37#include <asm/machdep.h>
38#include <asm/pmac_feature.h>
39#include "pmac.h"
40#include "tumbler_volume.h"
41
42#undef DEBUG
43
44#ifdef DEBUG
45#define DBG(fmt...) printk(KERN_DEBUG fmt)
46#else
47#define DBG(fmt...)
48#endif
49
50#define IS_G4DA (of_machine_is_compatible("PowerMac3,4"))
51
52/* i2c address for tumbler */
53#define TAS_I2C_ADDR 0x34
54
55/* registers */
56#define TAS_REG_MCS 0x01 /* main control */
57#define TAS_REG_DRC 0x02
58#define TAS_REG_VOL 0x04
59#define TAS_REG_TREBLE 0x05
60#define TAS_REG_BASS 0x06
61#define TAS_REG_INPUT1 0x07
62#define TAS_REG_INPUT2 0x08
63
64/* tas3001c */
65#define TAS_REG_PCM TAS_REG_INPUT1
66 
67/* tas3004 */
68#define TAS_REG_LMIX TAS_REG_INPUT1
69#define TAS_REG_RMIX TAS_REG_INPUT2
70#define TAS_REG_MCS2 0x43 /* main control 2 */
71#define TAS_REG_ACS 0x40 /* analog control */
72
73/* mono volumes for tas3001c/tas3004 */
74enum {
75    VOL_IDX_PCM_MONO, /* tas3001c only */
76    VOL_IDX_BASS, VOL_IDX_TREBLE,
77    VOL_IDX_LAST_MONO
78};
79
80/* stereo volumes for tas3004 */
81enum {
82    VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
83    VOL_IDX_LAST_MIX
84};
85
86struct pmac_gpio {
87    unsigned int addr;
88    u8 active_val;
89    u8 inactive_val;
90    u8 active_state;
91};
92
93struct pmac_tumbler {
94    struct pmac_keywest i2c;
95    struct pmac_gpio audio_reset;
96    struct pmac_gpio amp_mute;
97    struct pmac_gpio line_mute;
98    struct pmac_gpio line_detect;
99    struct pmac_gpio hp_mute;
100    struct pmac_gpio hp_detect;
101    int headphone_irq;
102    int lineout_irq;
103    unsigned int save_master_vol[2];
104    unsigned int master_vol[2];
105    unsigned int save_master_switch[2];
106    unsigned int master_switch[2];
107    unsigned int mono_vol[VOL_IDX_LAST_MONO];
108    unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
109    int drc_range;
110    int drc_enable;
111    int capture_source;
112    int anded_reset;
113    int auto_mute_notify;
114    int reset_on_sleep;
115    u8 acs;
116};
117
118
119/*
120 */
121
122static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
123{
124    while (*regs > 0) {
125        int err, count = 10;
126        do {
127            err = i2c_smbus_write_byte_data(i2c->client,
128                            regs[0], regs[1]);
129            if (err >= 0)
130                break;
131            DBG("(W) i2c error %d\n", err);
132            mdelay(10);
133        } while (count--);
134        if (err < 0)
135            return -ENXIO;
136        regs += 2;
137    }
138    return 0;
139}
140
141
142static int tumbler_init_client(struct pmac_keywest *i2c)
143{
144    static unsigned int regs[] = {
145        /* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
146        TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
147        0, /* terminator */
148    };
149    DBG("(I) tumbler init client\n");
150    return send_init_client(i2c, regs);
151}
152
153static int snapper_init_client(struct pmac_keywest *i2c)
154{
155    static unsigned int regs[] = {
156        /* normal operation, SCLK=64fps, i2s output, 16bit width */
157        TAS_REG_MCS, (1<<6)|(2<<4)|0,
158        /* normal operation, all-pass mode */
159        TAS_REG_MCS2, (1<<1),
160        /* normal output, no deemphasis, A input, power-up, line-in */
161        TAS_REG_ACS, 0,
162        0, /* terminator */
163    };
164    DBG("(I) snapper init client\n");
165    return send_init_client(i2c, regs);
166}
167    
168/*
169 * gpio access
170 */
171#define do_gpio_write(gp, val) \
172    pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
173#define do_gpio_read(gp) \
174    pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
175#define tumbler_gpio_free(gp) /* NOP */
176
177static void write_audio_gpio(struct pmac_gpio *gp, int active)
178{
179    if (! gp->addr)
180        return;
181    active = active ? gp->active_val : gp->inactive_val;
182    do_gpio_write(gp, active);
183    DBG("(I) gpio %x write %d\n", gp->addr, active);
184}
185
186static int check_audio_gpio(struct pmac_gpio *gp)
187{
188    int ret;
189
190    if (! gp->addr)
191        return 0;
192
193    ret = do_gpio_read(gp);
194
195    return (ret & 0x1) == (gp->active_val & 0x1);
196}
197
198static int read_audio_gpio(struct pmac_gpio *gp)
199{
200    int ret;
201    if (! gp->addr)
202        return 0;
203    ret = do_gpio_read(gp);
204    ret = (ret & 0x02) !=0;
205    return ret == gp->active_state;
206}
207
208/*
209 * update master volume
210 */
211static int tumbler_set_master_volume(struct pmac_tumbler *mix)
212{
213    unsigned char block[6];
214    unsigned int left_vol, right_vol;
215  
216    if (! mix->i2c.client)
217        return -ENODEV;
218  
219    if (! mix->master_switch[0])
220        left_vol = 0;
221    else {
222        left_vol = mix->master_vol[0];
223        if (left_vol >= ARRAY_SIZE(master_volume_table))
224            left_vol = ARRAY_SIZE(master_volume_table) - 1;
225        left_vol = master_volume_table[left_vol];
226    }
227    if (! mix->master_switch[1])
228        right_vol = 0;
229    else {
230        right_vol = mix->master_vol[1];
231        if (right_vol >= ARRAY_SIZE(master_volume_table))
232            right_vol = ARRAY_SIZE(master_volume_table) - 1;
233        right_vol = master_volume_table[right_vol];
234    }
235
236    block[0] = (left_vol >> 16) & 0xff;
237    block[1] = (left_vol >> 8) & 0xff;
238    block[2] = (left_vol >> 0) & 0xff;
239
240    block[3] = (right_vol >> 16) & 0xff;
241    block[4] = (right_vol >> 8) & 0xff;
242    block[5] = (right_vol >> 0) & 0xff;
243  
244    if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
245                       block) < 0) {
246        snd_printk(KERN_ERR "failed to set volume \n");
247        return -EINVAL;
248    }
249    DBG("(I) succeeded to set volume (%u, %u)\n", left_vol, right_vol);
250    return 0;
251}
252
253
254/* output volume */
255static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
256                      struct snd_ctl_elem_info *uinfo)
257{
258    uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
259    uinfo->count = 2;
260    uinfo->value.integer.min = 0;
261    uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
262    return 0;
263}
264
265static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
266                     struct snd_ctl_elem_value *ucontrol)
267{
268    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
269    struct pmac_tumbler *mix = chip->mixer_data;
270
271    ucontrol->value.integer.value[0] = mix->master_vol[0];
272    ucontrol->value.integer.value[1] = mix->master_vol[1];
273    return 0;
274}
275
276static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
277                     struct snd_ctl_elem_value *ucontrol)
278{
279    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
280    struct pmac_tumbler *mix = chip->mixer_data;
281    unsigned int vol[2];
282    int change;
283
284    vol[0] = ucontrol->value.integer.value[0];
285    vol[1] = ucontrol->value.integer.value[1];
286    if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
287        vol[1] >= ARRAY_SIZE(master_volume_table))
288        return -EINVAL;
289    change = mix->master_vol[0] != vol[0] ||
290        mix->master_vol[1] != vol[1];
291    if (change) {
292        mix->master_vol[0] = vol[0];
293        mix->master_vol[1] = vol[1];
294        tumbler_set_master_volume(mix);
295    }
296    return change;
297}
298
299/* output switch */
300static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
301                     struct snd_ctl_elem_value *ucontrol)
302{
303    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
304    struct pmac_tumbler *mix = chip->mixer_data;
305
306    ucontrol->value.integer.value[0] = mix->master_switch[0];
307    ucontrol->value.integer.value[1] = mix->master_switch[1];
308    return 0;
309}
310
311static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
312                     struct snd_ctl_elem_value *ucontrol)
313{
314    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
315    struct pmac_tumbler *mix = chip->mixer_data;
316    int change;
317
318    change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
319        mix->master_switch[1] != ucontrol->value.integer.value[1];
320    if (change) {
321        mix->master_switch[0] = !!ucontrol->value.integer.value[0];
322        mix->master_switch[1] = !!ucontrol->value.integer.value[1];
323        tumbler_set_master_volume(mix);
324    }
325    return change;
326}
327
328
329/*
330 * TAS3001c dynamic range compression
331 */
332
333#define TAS3001_DRC_MAX 0x5f
334
335static int tumbler_set_drc(struct pmac_tumbler *mix)
336{
337    unsigned char val[2];
338
339    if (! mix->i2c.client)
340        return -ENODEV;
341  
342    if (mix->drc_enable) {
343        val[0] = 0xc1; /* enable, 3:1 compression */
344        if (mix->drc_range > TAS3001_DRC_MAX)
345            val[1] = 0xf0;
346        else if (mix->drc_range < 0)
347            val[1] = 0x91;
348        else
349            val[1] = mix->drc_range + 0x91;
350    } else {
351        val[0] = 0;
352        val[1] = 0;
353    }
354
355    if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
356                       2, val) < 0) {
357        snd_printk(KERN_ERR "failed to set DRC\n");
358        return -EINVAL;
359    }
360    DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
361    return 0;
362}
363
364/*
365 * TAS3004
366 */
367
368#define TAS3004_DRC_MAX 0xef
369
370static int snapper_set_drc(struct pmac_tumbler *mix)
371{
372    unsigned char val[6];
373
374    if (! mix->i2c.client)
375        return -ENODEV;
376  
377    if (mix->drc_enable)
378        val[0] = 0x50; /* 3:1 above threshold */
379    else
380        val[0] = 0x51; /* disabled */
381    val[1] = 0x02; /* 1:1 below threshold */
382    if (mix->drc_range > 0xef)
383        val[2] = 0xef;
384    else if (mix->drc_range < 0)
385        val[2] = 0x00;
386    else
387        val[2] = mix->drc_range;
388    val[3] = 0xb0;
389    val[4] = 0x60;
390    val[5] = 0xa0;
391
392    if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
393                       6, val) < 0) {
394        snd_printk(KERN_ERR "failed to set DRC\n");
395        return -EINVAL;
396    }
397    DBG("(I) succeeded to set DRC (%u, %u)\n", val[0], val[1]);
398    return 0;
399}
400
401static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
402                  struct snd_ctl_elem_info *uinfo)
403{
404    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
405    uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
406    uinfo->count = 1;
407    uinfo->value.integer.min = 0;
408    uinfo->value.integer.max =
409        chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
410    return 0;
411}
412
413static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
414                 struct snd_ctl_elem_value *ucontrol)
415{
416    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
417    struct pmac_tumbler *mix;
418    if (! (mix = chip->mixer_data))
419        return -ENODEV;
420    ucontrol->value.integer.value[0] = mix->drc_range;
421    return 0;
422}
423
424static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
425                 struct snd_ctl_elem_value *ucontrol)
426{
427    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
428    struct pmac_tumbler *mix;
429    unsigned int val;
430    int change;
431
432    if (! (mix = chip->mixer_data))
433        return -ENODEV;
434    val = ucontrol->value.integer.value[0];
435    if (chip->model == PMAC_TUMBLER) {
436        if (val > TAS3001_DRC_MAX)
437            return -EINVAL;
438    } else {
439        if (val > TAS3004_DRC_MAX)
440            return -EINVAL;
441    }
442    change = mix->drc_range != val;
443    if (change) {
444        mix->drc_range = val;
445        if (chip->model == PMAC_TUMBLER)
446            tumbler_set_drc(mix);
447        else
448            snapper_set_drc(mix);
449    }
450    return change;
451}
452
453static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
454                  struct snd_ctl_elem_value *ucontrol)
455{
456    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
457    struct pmac_tumbler *mix;
458    if (! (mix = chip->mixer_data))
459        return -ENODEV;
460    ucontrol->value.integer.value[0] = mix->drc_enable;
461    return 0;
462}
463
464static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
465                  struct snd_ctl_elem_value *ucontrol)
466{
467    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
468    struct pmac_tumbler *mix;
469    int change;
470
471    if (! (mix = chip->mixer_data))
472        return -ENODEV;
473    change = mix->drc_enable != ucontrol->value.integer.value[0];
474    if (change) {
475        mix->drc_enable = !!ucontrol->value.integer.value[0];
476        if (chip->model == PMAC_TUMBLER)
477            tumbler_set_drc(mix);
478        else
479            snapper_set_drc(mix);
480    }
481    return change;
482}
483
484
485/*
486 * mono volumes
487 */
488
489struct tumbler_mono_vol {
490    int index;
491    int reg;
492    int bytes;
493    unsigned int max;
494    unsigned int *table;
495};
496
497static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
498                   struct tumbler_mono_vol *info)
499{
500    unsigned char block[4];
501    unsigned int vol;
502    int i;
503  
504    if (! mix->i2c.client)
505        return -ENODEV;
506  
507    vol = mix->mono_vol[info->index];
508    if (vol >= info->max)
509        vol = info->max - 1;
510    vol = info->table[vol];
511    for (i = 0; i < info->bytes; i++)
512        block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
513    if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
514                       info->bytes, block) < 0) {
515        snd_printk(KERN_ERR "failed to set mono volume %d\n",
516               info->index);
517        return -EINVAL;
518    }
519    return 0;
520}
521
522static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
523                 struct snd_ctl_elem_info *uinfo)
524{
525    struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
526
527    uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
528    uinfo->count = 1;
529    uinfo->value.integer.min = 0;
530    uinfo->value.integer.max = info->max - 1;
531    return 0;
532}
533
534static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
535                struct snd_ctl_elem_value *ucontrol)
536{
537    struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
538    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
539    struct pmac_tumbler *mix;
540    if (! (mix = chip->mixer_data))
541        return -ENODEV;
542    ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
543    return 0;
544}
545
546static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
547                struct snd_ctl_elem_value *ucontrol)
548{
549    struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
550    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
551    struct pmac_tumbler *mix;
552    unsigned int vol;
553    int change;
554
555    if (! (mix = chip->mixer_data))
556        return -ENODEV;
557    vol = ucontrol->value.integer.value[0];
558    if (vol >= info->max)
559        return -EINVAL;
560    change = mix->mono_vol[info->index] != vol;
561    if (change) {
562        mix->mono_vol[info->index] = vol;
563        tumbler_set_mono_volume(mix, info);
564    }
565    return change;
566}
567
568/* TAS3001c mono volumes */
569static struct tumbler_mono_vol tumbler_pcm_vol_info = {
570    .index = VOL_IDX_PCM_MONO,
571    .reg = TAS_REG_PCM,
572    .bytes = 3,
573    .max = ARRAY_SIZE(mixer_volume_table),
574    .table = mixer_volume_table,
575};
576
577static struct tumbler_mono_vol tumbler_bass_vol_info = {
578    .index = VOL_IDX_BASS,
579    .reg = TAS_REG_BASS,
580    .bytes = 1,
581    .max = ARRAY_SIZE(bass_volume_table),
582    .table = bass_volume_table,
583};
584
585static struct tumbler_mono_vol tumbler_treble_vol_info = {
586    .index = VOL_IDX_TREBLE,
587    .reg = TAS_REG_TREBLE,
588    .bytes = 1,
589    .max = ARRAY_SIZE(treble_volume_table),
590    .table = treble_volume_table,
591};
592
593/* TAS3004 mono volumes */
594static struct tumbler_mono_vol snapper_bass_vol_info = {
595    .index = VOL_IDX_BASS,
596    .reg = TAS_REG_BASS,
597    .bytes = 1,
598    .max = ARRAY_SIZE(snapper_bass_volume_table),
599    .table = snapper_bass_volume_table,
600};
601
602static struct tumbler_mono_vol snapper_treble_vol_info = {
603    .index = VOL_IDX_TREBLE,
604    .reg = TAS_REG_TREBLE,
605    .bytes = 1,
606    .max = ARRAY_SIZE(snapper_treble_volume_table),
607    .table = snapper_treble_volume_table,
608};
609
610
611#define DEFINE_MONO(xname,type) { \
612    .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
613    .name = xname, \
614    .info = tumbler_info_mono, \
615    .get = tumbler_get_mono, \
616    .put = tumbler_put_mono, \
617    .private_value = (unsigned long)(&tumbler_##type##_vol_info), \
618}
619
620#define DEFINE_SNAPPER_MONO(xname,type) { \
621    .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
622    .name = xname, \
623    .info = tumbler_info_mono, \
624    .get = tumbler_get_mono, \
625    .put = tumbler_put_mono, \
626    .private_value = (unsigned long)(&snapper_##type##_vol_info), \
627}
628
629
630/*
631 * snapper mixer volumes
632 */
633
634static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
635{
636    int i, j, vol;
637    unsigned char block[9];
638
639    vol = mix->mix_vol[idx][ch];
640    if (vol >= ARRAY_SIZE(mixer_volume_table)) {
641        vol = ARRAY_SIZE(mixer_volume_table) - 1;
642        mix->mix_vol[idx][ch] = vol;
643    }
644
645    for (i = 0; i < 3; i++) {
646        vol = mix->mix_vol[i][ch];
647        vol = mixer_volume_table[vol];
648        for (j = 0; j < 3; j++)
649            block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
650    }
651    if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
652                       9, block) < 0) {
653        snd_printk(KERN_ERR "failed to set mono volume %d\n", reg);
654        return -EINVAL;
655    }
656    return 0;
657}
658
659static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
660{
661    if (! mix->i2c.client)
662        return -ENODEV;
663    if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
664        snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
665        return -EINVAL;
666    return 0;
667}
668
669static int snapper_info_mix(struct snd_kcontrol *kcontrol,
670                struct snd_ctl_elem_info *uinfo)
671{
672    uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
673    uinfo->count = 2;
674    uinfo->value.integer.min = 0;
675    uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
676    return 0;
677}
678
679static int snapper_get_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    if (! (mix = chip->mixer_data))
686        return -ENODEV;
687    ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
688    ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
689    return 0;
690}
691
692static int snapper_put_mix(struct snd_kcontrol *kcontrol,
693               struct snd_ctl_elem_value *ucontrol)
694{
695    int idx = (int)kcontrol->private_value;
696    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
697    struct pmac_tumbler *mix;
698    unsigned int vol[2];
699    int change;
700
701    if (! (mix = chip->mixer_data))
702        return -ENODEV;
703    vol[0] = ucontrol->value.integer.value[0];
704    vol[1] = ucontrol->value.integer.value[1];
705    if (vol[0] >= ARRAY_SIZE(mixer_volume_table) ||
706        vol[1] >= ARRAY_SIZE(mixer_volume_table))
707        return -EINVAL;
708    change = mix->mix_vol[idx][0] != vol[0] ||
709        mix->mix_vol[idx][1] != vol[1];
710    if (change) {
711        mix->mix_vol[idx][0] = vol[0];
712        mix->mix_vol[idx][1] = vol[1];
713        snapper_set_mix_vol(mix, idx);
714    }
715    return change;
716}
717
718
719/*
720 * mute switches. FIXME: Turn that into software mute when both outputs are muted
721 * to avoid codec reset on ibook M7
722 */
723
724enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
725
726static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
727                   struct snd_ctl_elem_value *ucontrol)
728{
729    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
730    struct pmac_tumbler *mix;
731    struct pmac_gpio *gp;
732    if (! (mix = chip->mixer_data))
733        return -ENODEV;
734    switch(kcontrol->private_value) {
735    case TUMBLER_MUTE_HP:
736        gp = &mix->hp_mute; break;
737    case TUMBLER_MUTE_AMP:
738        gp = &mix->amp_mute; break;
739    case TUMBLER_MUTE_LINE:
740        gp = &mix->line_mute; break;
741    default:
742        gp = NULL;
743    }
744    if (gp == NULL)
745        return -EINVAL;
746    ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
747    return 0;
748}
749
750static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
751                   struct snd_ctl_elem_value *ucontrol)
752{
753    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
754    struct pmac_tumbler *mix;
755    struct pmac_gpio *gp;
756    int val;
757#ifdef PMAC_SUPPORT_AUTOMUTE
758    if (chip->update_automute && chip->auto_mute)
759        return 0; /* don't touch in the auto-mute mode */
760#endif
761    if (! (mix = chip->mixer_data))
762        return -ENODEV;
763    switch(kcontrol->private_value) {
764    case TUMBLER_MUTE_HP:
765        gp = &mix->hp_mute; break;
766    case TUMBLER_MUTE_AMP:
767        gp = &mix->amp_mute; break;
768    case TUMBLER_MUTE_LINE:
769        gp = &mix->line_mute; break;
770    default:
771        gp = NULL;
772    }
773    if (gp == NULL)
774        return -EINVAL;
775    val = ! check_audio_gpio(gp);
776    if (val != ucontrol->value.integer.value[0]) {
777        write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
778        return 1;
779    }
780    return 0;
781}
782
783static int snapper_set_capture_source(struct pmac_tumbler *mix)
784{
785    if (! mix->i2c.client)
786        return -ENODEV;
787    if (mix->capture_source)
788        mix->acs |= 2;
789    else
790        mix->acs &= ~2;
791    return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
792}
793
794static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
795                       struct snd_ctl_elem_info *uinfo)
796{
797    static char *texts[2] = {
798        "Line", "Mic"
799    };
800    uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
801    uinfo->count = 1;
802    uinfo->value.enumerated.items = 2;
803    if (uinfo->value.enumerated.item > 1)
804        uinfo->value.enumerated.item = 1;
805    strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
806    return 0;
807}
808
809static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
810                      struct snd_ctl_elem_value *ucontrol)
811{
812    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
813    struct pmac_tumbler *mix = chip->mixer_data;
814
815    ucontrol->value.enumerated.item[0] = mix->capture_source;
816    return 0;
817}
818
819static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
820                      struct snd_ctl_elem_value *ucontrol)
821{
822    struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
823    struct pmac_tumbler *mix = chip->mixer_data;
824    int change;
825
826    change = ucontrol->value.enumerated.item[0] != mix->capture_source;
827    if (change) {
828        mix->capture_source = !!ucontrol->value.enumerated.item[0];
829        snapper_set_capture_source(mix);
830    }
831    return change;
832}
833
834#define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
835    .iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
836    .name = xname, \
837    .info = snapper_info_mix, \
838    .get = snapper_get_mix, \
839    .put = snapper_put_mix, \
840    .index = idx,\
841    .private_value = ofs, \
842}
843
844
845/*
846 */
847static struct snd_kcontrol_new tumbler_mixers[] __devinitdata = {
848    { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
849      .name = "Master Playback Volume",
850      .info = tumbler_info_master_volume,
851      .get = tumbler_get_master_volume,
852      .put = tumbler_put_master_volume
853    },
854    { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
855      .name = "Master Playback Switch",
856      .info = snd_pmac_boolean_stereo_info,
857      .get = tumbler_get_master_switch,
858      .put = tumbler_put_master_switch
859    },
860    DEFINE_MONO("Tone Control - Bass", bass),
861    DEFINE_MONO("Tone Control - Treble", treble),
862    DEFINE_MONO("PCM Playback Volume", pcm),
863    { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
864      .name = "DRC Range",
865      .info = tumbler_info_drc_value,
866      .get = tumbler_get_drc_value,
867      .put = tumbler_put_drc_value
868    },
869};
870
871static struct snd_kcontrol_new snapper_mixers[] __devinitdata = {
872    { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
873      .name = "Master Playback Volume",
874      .info = tumbler_info_master_volume,
875      .get = tumbler_get_master_volume,
876      .put = tumbler_put_master_volume
877    },
878    { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
879      .name = "Master Playback Switch",
880      .info = snd_pmac_boolean_stereo_info,
881      .get = tumbler_get_master_switch,
882      .put = tumbler_put_master_switch
883    },
884    DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
885    /* Alternative PCM is assigned to Mic analog loopback on iBook G4 */
886    DEFINE_SNAPPER_MIX("Mic Playback Volume", 0, VOL_IDX_PCM2),
887    DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
888    DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
889    DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
890    { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
891      .name = "DRC Range",
892      .info = tumbler_info_drc_value,
893      .get = tumbler_get_drc_value,
894      .put = tumbler_put_drc_value
895    },
896    { .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
897      .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
898      .info = snapper_info_capture_source,
899      .get = snapper_get_capture_source,
900      .put = snapper_put_capture_source
901    },
902};
903
904static struct snd_kcontrol_new tumbler_hp_sw __devinitdata = {
905    .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
906    .name = "Headphone 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_HP,
911};
912static struct snd_kcontrol_new tumbler_speaker_sw __devinitdata = {
913    .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
914    .name = "Speaker 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_AMP,
919};
920static struct snd_kcontrol_new tumbler_lineout_sw __devinitdata = {
921    .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
922    .name = "Line Out Playback Switch",
923    .info = snd_pmac_boolean_mono_info,
924    .get = tumbler_get_mute_switch,
925    .put = tumbler_put_mute_switch,
926    .private_value = TUMBLER_MUTE_LINE,
927};
928static struct snd_kcontrol_new tumbler_drc_sw __devinitdata = {
929    .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
930    .name = "DRC Switch",
931    .info = snd_pmac_boolean_mono_info,
932    .get = tumbler_get_drc_switch,
933    .put = tumbler_put_drc_switch
934};
935
936
937#ifdef PMAC_SUPPORT_AUTOMUTE
938/*
939 * auto-mute stuffs
940 */
941static int tumbler_detect_headphone(struct snd_pmac *chip)
942{
943    struct pmac_tumbler *mix = chip->mixer_data;
944    int detect = 0;
945
946    if (mix->hp_detect.addr)
947        detect |= read_audio_gpio(&mix->hp_detect);
948    return detect;
949}
950
951static int tumbler_detect_lineout(struct snd_pmac *chip)
952{
953    struct pmac_tumbler *mix = chip->mixer_data;
954    int detect = 0;
955
956    if (mix->line_detect.addr)
957        detect |= read_audio_gpio(&mix->line_detect);
958    return detect;
959}
960
961static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
962               struct snd_kcontrol *sw)
963{
964    if (check_audio_gpio(gp) != val) {
965        write_audio_gpio(gp, val);
966        if (do_notify)
967            snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
968                       &sw->id);
969    }
970}
971
972static struct work_struct device_change;
973static struct snd_pmac *device_change_chip;
974
975static void device_change_handler(struct work_struct *work)
976{
977    struct snd_pmac *chip = device_change_chip;
978    struct pmac_tumbler *mix;
979    int headphone, lineout;
980
981    if (!chip)
982        return;
983
984    mix = chip->mixer_data;
985    if (snd_BUG_ON(!mix))
986        return;
987
988    headphone = tumbler_detect_headphone(chip);
989    lineout = tumbler_detect_lineout(chip);
990
991    DBG("headphone: %d, lineout: %d\n", headphone, lineout);
992
993    if (headphone || lineout) {
994        /* unmute headphone/lineout & mute speaker */
995        if (headphone)
996            check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
997                   chip->master_sw_ctl);
998        if (lineout && mix->line_mute.addr != 0)
999            check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
1000                   chip->lineout_sw_ctl);
1001        if (mix->anded_reset)
1002            msleep(10);
1003        check_mute(chip, &mix->amp_mute, !IS_G4DA, mix->auto_mute_notify,
1004               chip->speaker_sw_ctl);
1005    } else {
1006        /* unmute speaker, mute others */
1007        check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1008               chip->speaker_sw_ctl);
1009        if (mix->anded_reset)
1010            msleep(10);
1011        check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1012               chip->master_sw_ctl);
1013        if (mix->line_mute.addr != 0)
1014            check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1015                   chip->lineout_sw_ctl);
1016    }
1017    if (mix->auto_mute_notify)
1018        snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1019                       &chip->hp_detect_ctl->id);
1020
1021#ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1022    mix->drc_enable = ! (headphone || lineout);
1023    if (mix->auto_mute_notify)
1024        snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1025                   &chip->drc_sw_ctl->id);
1026    if (chip->model == PMAC_TUMBLER)
1027        tumbler_set_drc(mix);
1028    else
1029        snapper_set_drc(mix);
1030#endif
1031
1032    /* reset the master volume so the correct amplification is applied */
1033    tumbler_set_master_volume(mix);
1034}
1035
1036static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1037{
1038    if (chip->auto_mute) {
1039        struct pmac_tumbler *mix;
1040        mix = chip->mixer_data;
1041        if (snd_BUG_ON(!mix))
1042            return;
1043        mix->auto_mute_notify = do_notify;
1044        schedule_work(&device_change);
1045    }
1046}
1047#endif /* PMAC_SUPPORT_AUTOMUTE */
1048
1049
1050/* interrupt - headphone plug changed */
1051static irqreturn_t headphone_intr(int irq, void *devid)
1052{
1053    struct snd_pmac *chip = devid;
1054    if (chip->update_automute && chip->initialized) {
1055        chip->update_automute(chip, 1);
1056        return IRQ_HANDLED;
1057    }
1058    return IRQ_NONE;
1059}
1060
1061/* look for audio-gpio device */
1062static struct device_node *find_audio_device(const char *name)
1063{
1064    struct device_node *gpiop;
1065    struct device_node *np;
1066  
1067    gpiop = of_find_node_by_name(NULL, "gpio");
1068    if (! gpiop)
1069        return NULL;
1070  
1071    for (np = of_get_next_child(gpiop, NULL); np;
1072            np = of_get_next_child(gpiop, np)) {
1073        const char *property = of_get_property(np, "audio-gpio", NULL);
1074        if (property && strcmp(property, name) == 0)
1075            break;
1076    }
1077    of_node_put(gpiop);
1078    return np;
1079}
1080
1081/* look for audio-gpio device */
1082static struct device_node *find_compatible_audio_device(const char *name)
1083{
1084    struct device_node *gpiop;
1085    struct device_node *np;
1086  
1087    gpiop = of_find_node_by_name(NULL, "gpio");
1088    if (!gpiop)
1089        return NULL;
1090  
1091    for (np = of_get_next_child(gpiop, NULL); np;
1092            np = of_get_next_child(gpiop, np)) {
1093        if (of_device_is_compatible(np, name))
1094            break;
1095    }
1096    of_node_put(gpiop);
1097    return np;
1098}
1099
1100/* find an audio device and get its address */
1101static long tumbler_find_device(const char *device, const char *platform,
1102                struct pmac_gpio *gp, int is_compatible)
1103{
1104    struct device_node *node;
1105    const u32 *base;
1106    u32 addr;
1107    long ret;
1108
1109    if (is_compatible)
1110        node = find_compatible_audio_device(device);
1111    else
1112        node = find_audio_device(device);
1113    if (! node) {
1114        DBG("(W) cannot find audio device %s !\n", device);
1115        snd_printdd("cannot find device %s\n", device);
1116        return -ENODEV;
1117    }
1118
1119    base = of_get_property(node, "AAPL,address", NULL);
1120    if (! base) {
1121        base = of_get_property(node, "reg", NULL);
1122        if (!base) {
1123            DBG("(E) cannot find address for device %s !\n", device);
1124            snd_printd("cannot find address for device %s\n", device);
1125            of_node_put(node);
1126            return -ENODEV;
1127        }
1128        addr = *base;
1129        if (addr < 0x50)
1130            addr += 0x50;
1131    } else
1132        addr = *base;
1133
1134    gp->addr = addr & 0x0000ffff;
1135    /* Try to find the active state, default to 0 ! */
1136    base = of_get_property(node, "audio-gpio-active-state", NULL);
1137    if (base) {
1138        gp->active_state = *base;
1139        gp->active_val = (*base) ? 0x5 : 0x4;
1140        gp->inactive_val = (*base) ? 0x4 : 0x5;
1141    } else {
1142        const u32 *prop = NULL;
1143        gp->active_state = IS_G4DA
1144                && !strncmp(device, "keywest-gpio1", 13);
1145        gp->active_val = 0x4;
1146        gp->inactive_val = 0x5;
1147        /* Here are some crude hacks to extract the GPIO polarity and
1148         * open collector informations out of the do-platform script
1149         * as we don't yet have an interpreter for these things
1150         */
1151        if (platform)
1152            prop = of_get_property(node, platform, NULL);
1153        if (prop) {
1154            if (prop[3] == 0x9 && prop[4] == 0x9) {
1155                gp->active_val = 0xd;
1156                gp->inactive_val = 0xc;
1157            }
1158            if (prop[3] == 0x1 && prop[4] == 0x1) {
1159                gp->active_val = 0x5;
1160                gp->inactive_val = 0x4;
1161            }
1162        }
1163    }
1164
1165    DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1166        device, gp->addr, gp->active_state);
1167
1168    ret = irq_of_parse_and_map(node, 0);
1169    of_node_put(node);
1170    return ret;
1171}
1172
1173/* reset audio */
1174static void tumbler_reset_audio(struct snd_pmac *chip)
1175{
1176    struct pmac_tumbler *mix = chip->mixer_data;
1177
1178    if (mix->anded_reset) {
1179        DBG("(I) codec anded reset !\n");
1180        write_audio_gpio(&mix->hp_mute, 0);
1181        write_audio_gpio(&mix->amp_mute, 0);
1182        msleep(200);
1183        write_audio_gpio(&mix->hp_mute, 1);
1184        write_audio_gpio(&mix->amp_mute, 1);
1185        msleep(100);
1186        write_audio_gpio(&mix->hp_mute, 0);
1187        write_audio_gpio(&mix->amp_mute, 0);
1188        msleep(100);
1189    } else {
1190        DBG("(I) codec normal reset !\n");
1191
1192        write_audio_gpio(&mix->audio_reset, 0);
1193        msleep(200);
1194        write_audio_gpio(&mix->audio_reset, 1);
1195        msleep(100);
1196        write_audio_gpio(&mix->audio_reset, 0);
1197        msleep(100);
1198    }
1199}
1200
1201#ifdef CONFIG_PM
1202/* suspend mixer */
1203static void tumbler_suspend(struct snd_pmac *chip)
1204{
1205    struct pmac_tumbler *mix = chip->mixer_data;
1206
1207    if (mix->headphone_irq >= 0)
1208        disable_irq(mix->headphone_irq);
1209    if (mix->lineout_irq >= 0)
1210        disable_irq(mix->lineout_irq);
1211    mix->save_master_switch[0] = mix->master_switch[0];
1212    mix->save_master_switch[1] = mix->master_switch[1];
1213    mix->save_master_vol[0] = mix->master_vol[0];
1214    mix->save_master_vol[1] = mix->master_vol[1];
1215    mix->master_switch[0] = mix->master_switch[1] = 0;
1216    tumbler_set_master_volume(mix);
1217    if (!mix->anded_reset) {
1218        write_audio_gpio(&mix->amp_mute, 1);
1219        write_audio_gpio(&mix->hp_mute, 1);
1220    }
1221    if (chip->model == PMAC_SNAPPER) {
1222        mix->acs |= 1;
1223        i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1224    }
1225    if (mix->anded_reset) {
1226        write_audio_gpio(&mix->amp_mute, 1);
1227        write_audio_gpio(&mix->hp_mute, 1);
1228    } else
1229        write_audio_gpio(&mix->audio_reset, 1);
1230}
1231
1232/* resume mixer */
1233static void tumbler_resume(struct snd_pmac *chip)
1234{
1235    struct pmac_tumbler *mix = chip->mixer_data;
1236
1237    mix->acs &= ~1;
1238    mix->master_switch[0] = mix->save_master_switch[0];
1239    mix->master_switch[1] = mix->save_master_switch[1];
1240    mix->master_vol[0] = mix->save_master_vol[0];
1241    mix->master_vol[1] = mix->save_master_vol[1];
1242    tumbler_reset_audio(chip);
1243    if (mix->i2c.client && mix->i2c.init_client) {
1244        if (mix->i2c.init_client(&mix->i2c) < 0)
1245            printk(KERN_ERR "tumbler_init_client error\n");
1246    } else
1247        printk(KERN_ERR "tumbler: i2c is not initialized\n");
1248    if (chip->model == PMAC_TUMBLER) {
1249        tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1250        tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1251        tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1252        tumbler_set_drc(mix);
1253    } else {
1254        snapper_set_mix_vol(mix, VOL_IDX_PCM);
1255        snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1256        snapper_set_mix_vol(mix, VOL_IDX_ADC);
1257        tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1258        tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1259        snapper_set_drc(mix);
1260        snapper_set_capture_source(mix);
1261    }
1262    tumbler_set_master_volume(mix);
1263    if (chip->update_automute)
1264        chip->update_automute(chip, 0);
1265    if (mix->headphone_irq >= 0) {
1266        unsigned char val;
1267
1268        enable_irq(mix->headphone_irq);
1269        /* activate headphone status interrupts */
1270        val = do_gpio_read(&mix->hp_detect);
1271        do_gpio_write(&mix->hp_detect, val | 0x80);
1272    }
1273    if (mix->lineout_irq >= 0)
1274        enable_irq(mix->lineout_irq);
1275}
1276#endif
1277
1278/* initialize tumbler */
1279static int __devinit tumbler_init(struct snd_pmac *chip)
1280{
1281    int irq;
1282    struct pmac_tumbler *mix = chip->mixer_data;
1283
1284    if (tumbler_find_device("audio-hw-reset",
1285                "platform-do-hw-reset",
1286                &mix->audio_reset, 0) < 0)
1287        tumbler_find_device("hw-reset",
1288                    "platform-do-hw-reset",
1289                    &mix->audio_reset, 1);
1290    if (tumbler_find_device("amp-mute",
1291                "platform-do-amp-mute",
1292                &mix->amp_mute, 0) < 0)
1293        tumbler_find_device("amp-mute",
1294                    "platform-do-amp-mute",
1295                    &mix->amp_mute, 1);
1296    if (tumbler_find_device("headphone-mute",
1297                "platform-do-headphone-mute",
1298                &mix->hp_mute, 0) < 0)
1299        tumbler_find_device("headphone-mute",
1300                    "platform-do-headphone-mute",
1301                    &mix->hp_mute, 1);
1302    if (tumbler_find_device("line-output-mute",
1303                "platform-do-lineout-mute",
1304                &mix->line_mute, 0) < 0)
1305        tumbler_find_device("line-output-mute",
1306                   "platform-do-lineout-mute",
1307                    &mix->line_mute, 1);
1308    irq = tumbler_find_device("headphone-detect",
1309                  NULL, &mix->hp_detect, 0);
1310    if (irq <= NO_IRQ)
1311        irq = tumbler_find_device("headphone-detect",
1312                      NULL, &mix->hp_detect, 1);
1313    if (irq <= NO_IRQ)
1314        irq = tumbler_find_device("keywest-gpio15",
1315                      NULL, &mix->hp_detect, 1);
1316    mix->headphone_irq = irq;
1317     irq = tumbler_find_device("line-output-detect",
1318                  NULL, &mix->line_detect, 0);
1319     if (irq <= NO_IRQ)
1320        irq = tumbler_find_device("line-output-detect",
1321                      NULL, &mix->line_detect, 1);
1322    if (IS_G4DA && irq <= NO_IRQ)
1323        irq = tumbler_find_device("keywest-gpio16",
1324                      NULL, &mix->line_detect, 1);
1325    mix->lineout_irq = irq;
1326
1327    tumbler_reset_audio(chip);
1328  
1329    return 0;
1330}
1331
1332static void tumbler_cleanup(struct snd_pmac *chip)
1333{
1334    struct pmac_tumbler *mix = chip->mixer_data;
1335    if (! mix)
1336        return;
1337
1338    if (mix->headphone_irq >= 0)
1339        free_irq(mix->headphone_irq, chip);
1340    if (mix->lineout_irq >= 0)
1341        free_irq(mix->lineout_irq, chip);
1342    tumbler_gpio_free(&mix->audio_reset);
1343    tumbler_gpio_free(&mix->amp_mute);
1344    tumbler_gpio_free(&mix->hp_mute);
1345    tumbler_gpio_free(&mix->hp_detect);
1346    snd_pmac_keywest_cleanup(&mix->i2c);
1347    kfree(mix);
1348    chip->mixer_data = NULL;
1349}
1350
1351/* exported */
1352int __devinit snd_pmac_tumbler_init(struct snd_pmac *chip)
1353{
1354    int i, err;
1355    struct pmac_tumbler *mix;
1356    const u32 *paddr;
1357    struct device_node *tas_node, *np;
1358    char *chipname;
1359
1360    request_module("i2c-powermac");
1361
1362    mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1363    if (! mix)
1364        return -ENOMEM;
1365    mix->headphone_irq = -1;
1366
1367    chip->mixer_data = mix;
1368    chip->mixer_free = tumbler_cleanup;
1369    mix->anded_reset = 0;
1370    mix->reset_on_sleep = 1;
1371
1372    for (np = chip->node->child; np; np = np->sibling) {
1373        if (!strcmp(np->name, "sound")) {
1374            if (of_get_property(np, "has-anded-reset", NULL))
1375                mix->anded_reset = 1;
1376            if (of_get_property(np, "layout-id", NULL))
1377                mix->reset_on_sleep = 0;
1378            break;
1379        }
1380    }
1381    if ((err = tumbler_init(chip)) < 0)
1382        return err;
1383
1384    /* set up TAS */
1385    tas_node = of_find_node_by_name(NULL, "deq");
1386    if (tas_node == NULL)
1387        tas_node = of_find_node_by_name(NULL, "codec");
1388    if (tas_node == NULL)
1389        return -ENODEV;
1390
1391    paddr = of_get_property(tas_node, "i2c-address", NULL);
1392    if (paddr == NULL)
1393        paddr = of_get_property(tas_node, "reg", NULL);
1394    if (paddr)
1395        mix->i2c.addr = (*paddr) >> 1;
1396    else
1397        mix->i2c.addr = TAS_I2C_ADDR;
1398    of_node_put(tas_node);
1399
1400    DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1401
1402    if (chip->model == PMAC_TUMBLER) {
1403        mix->i2c.init_client = tumbler_init_client;
1404        mix->i2c.name = "TAS3001c";
1405        chipname = "Tumbler";
1406    } else {
1407        mix->i2c.init_client = snapper_init_client;
1408        mix->i2c.name = "TAS3004";
1409        chipname = "Snapper";
1410    }
1411
1412    if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1413        return err;
1414
1415    /*
1416     * build mixers
1417     */
1418    sprintf(chip->card->mixername, "PowerMac %s", chipname);
1419
1420    if (chip->model == PMAC_TUMBLER) {
1421        for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1422            if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1423                return err;
1424        }
1425    } else {
1426        for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1427            if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1428                return err;
1429        }
1430    }
1431    chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1432    if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1433        return err;
1434    chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1435    if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1436        return err;
1437    if (mix->line_mute.addr != 0) {
1438        chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1439        if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1440            return err;
1441    }
1442    chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1443    if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1444        return err;
1445
1446    /* set initial DRC range to 60% */
1447    if (chip->model == PMAC_TUMBLER)
1448        mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1449    else
1450        mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1451    mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1452    if (chip->model == PMAC_TUMBLER)
1453        tumbler_set_drc(mix);
1454    else
1455        snapper_set_drc(mix);
1456
1457#ifdef CONFIG_PM
1458    chip->suspend = tumbler_suspend;
1459    chip->resume = tumbler_resume;
1460#endif
1461
1462    INIT_WORK(&device_change, device_change_handler);
1463    device_change_chip = chip;
1464
1465#ifdef PMAC_SUPPORT_AUTOMUTE
1466    if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1467        && (err = snd_pmac_add_automute(chip)) < 0)
1468        return err;
1469    chip->detect_headphone = tumbler_detect_headphone;
1470    chip->update_automute = tumbler_update_automute;
1471    tumbler_update_automute(chip, 0); /* update the status only */
1472
1473    /* activate headphone status interrupts */
1474      if (mix->headphone_irq >= 0) {
1475        unsigned char val;
1476        if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1477                       "Sound Headphone Detection", chip)) < 0)
1478            return 0;
1479        /* activate headphone status interrupts */
1480        val = do_gpio_read(&mix->hp_detect);
1481        do_gpio_write(&mix->hp_detect, val | 0x80);
1482    }
1483      if (mix->lineout_irq >= 0) {
1484        unsigned char val;
1485        if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1486                       "Sound Lineout Detection", chip)) < 0)
1487            return 0;
1488        /* activate headphone status interrupts */
1489        val = do_gpio_read(&mix->line_detect);
1490        do_gpio_write(&mix->line_detect, val | 0x80);
1491    }
1492#endif
1493
1494    return 0;
1495}
1496

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