xref: /openbmc/linux/sound/ppc/tumbler.c (revision 22246614)
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 <sound/core.h>
34 #include <asm/io.h>
35 #include <asm/irq.h>
36 #include <asm/machdep.h>
37 #include <asm/pmac_feature.h>
38 #include "pmac.h"
39 #include "tumbler_volume.h"
40 
41 #undef DEBUG
42 
43 #ifdef DEBUG
44 #define DBG(fmt...) printk(fmt)
45 #else
46 #define DBG(fmt...)
47 #endif
48 
49 /* i2c address for tumbler */
50 #define TAS_I2C_ADDR	0x34
51 
52 /* registers */
53 #define TAS_REG_MCS	0x01	/* main control */
54 #define TAS_REG_DRC	0x02
55 #define TAS_REG_VOL	0x04
56 #define TAS_REG_TREBLE	0x05
57 #define TAS_REG_BASS	0x06
58 #define TAS_REG_INPUT1	0x07
59 #define TAS_REG_INPUT2	0x08
60 
61 /* tas3001c */
62 #define TAS_REG_PCM	TAS_REG_INPUT1
63 
64 /* tas3004 */
65 #define TAS_REG_LMIX	TAS_REG_INPUT1
66 #define TAS_REG_RMIX	TAS_REG_INPUT2
67 #define TAS_REG_MCS2	0x43		/* main control 2 */
68 #define TAS_REG_ACS	0x40		/* analog control */
69 
70 /* mono volumes for tas3001c/tas3004 */
71 enum {
72 	VOL_IDX_PCM_MONO, /* tas3001c only */
73 	VOL_IDX_BASS, VOL_IDX_TREBLE,
74 	VOL_IDX_LAST_MONO
75 };
76 
77 /* stereo volumes for tas3004 */
78 enum {
79 	VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
80 	VOL_IDX_LAST_MIX
81 };
82 
83 struct pmac_gpio {
84 	unsigned int addr;
85 	u8 active_val;
86 	u8 inactive_val;
87 	u8 active_state;
88 };
89 
90 struct pmac_tumbler {
91 	struct pmac_keywest i2c;
92 	struct pmac_gpio audio_reset;
93 	struct pmac_gpio amp_mute;
94 	struct pmac_gpio line_mute;
95 	struct pmac_gpio line_detect;
96 	struct pmac_gpio hp_mute;
97 	struct pmac_gpio hp_detect;
98 	int headphone_irq;
99 	int lineout_irq;
100 	unsigned int save_master_vol[2];
101 	unsigned int master_vol[2];
102 	unsigned int save_master_switch[2];
103 	unsigned int master_switch[2];
104 	unsigned int mono_vol[VOL_IDX_LAST_MONO];
105 	unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
106 	int drc_range;
107 	int drc_enable;
108 	int capture_source;
109 	int anded_reset;
110 	int auto_mute_notify;
111 	int reset_on_sleep;
112 	u8  acs;
113 };
114 
115 
116 /*
117  */
118 
119 static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
120 {
121 	while (*regs > 0) {
122 		int err, count = 10;
123 		do {
124 			err = i2c_smbus_write_byte_data(i2c->client,
125 							regs[0], regs[1]);
126 			if (err >= 0)
127 				break;
128 			DBG("(W) i2c error %d\n", err);
129 			mdelay(10);
130 		} while (count--);
131 		if (err < 0)
132 			return -ENXIO;
133 		regs += 2;
134 	}
135 	return 0;
136 }
137 
138 
139 static int tumbler_init_client(struct pmac_keywest *i2c)
140 {
141 	static unsigned int regs[] = {
142 		/* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
143 		TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
144 		0, /* terminator */
145 	};
146 	DBG("(I) tumbler init client\n");
147 	return send_init_client(i2c, regs);
148 }
149 
150 static int snapper_init_client(struct pmac_keywest *i2c)
151 {
152 	static unsigned int regs[] = {
153 		/* normal operation, SCLK=64fps, i2s output, 16bit width */
154 		TAS_REG_MCS, (1<<6)|(2<<4)|0,
155 		/* normal operation, all-pass mode */
156 		TAS_REG_MCS2, (1<<1),
157 		/* normal output, no deemphasis, A input, power-up, line-in */
158 		TAS_REG_ACS, 0,
159 		0, /* terminator */
160 	};
161 	DBG("(I) snapper init client\n");
162 	return send_init_client(i2c, regs);
163 }
164 
165 /*
166  * gpio access
167  */
168 #define do_gpio_write(gp, val) \
169 	pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
170 #define do_gpio_read(gp) \
171 	pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
172 #define tumbler_gpio_free(gp) /* NOP */
173 
174 static void write_audio_gpio(struct pmac_gpio *gp, int active)
175 {
176 	if (! gp->addr)
177 		return;
178 	active = active ? gp->active_val : gp->inactive_val;
179 	do_gpio_write(gp, active);
180 	DBG("(I) gpio %x write %d\n", gp->addr, active);
181 }
182 
183 static int check_audio_gpio(struct pmac_gpio *gp)
184 {
185 	int ret;
186 
187 	if (! gp->addr)
188 		return 0;
189 
190 	ret = do_gpio_read(gp);
191 
192 	return (ret & 0x1) == (gp->active_val & 0x1);
193 }
194 
195 static int read_audio_gpio(struct pmac_gpio *gp)
196 {
197 	int ret;
198 	if (! gp->addr)
199 		return 0;
200 	ret = do_gpio_read(gp);
201 	ret = (ret & 0x02) !=0;
202 	return ret == gp->active_state;
203 }
204 
205 /*
206  * update master volume
207  */
208 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
209 {
210 	unsigned char block[6];
211 	unsigned int left_vol, right_vol;
212 
213 	if (! mix->i2c.client)
214 		return -ENODEV;
215 
216 	if (! mix->master_switch[0])
217 		left_vol = 0;
218 	else {
219 		left_vol = mix->master_vol[0];
220 		if (left_vol >= ARRAY_SIZE(master_volume_table))
221 			left_vol = ARRAY_SIZE(master_volume_table) - 1;
222 		left_vol = master_volume_table[left_vol];
223 	}
224 	if (! mix->master_switch[1])
225 		right_vol = 0;
226 	else {
227 		right_vol = mix->master_vol[1];
228 		if (right_vol >= ARRAY_SIZE(master_volume_table))
229 			right_vol = ARRAY_SIZE(master_volume_table) - 1;
230 		right_vol = master_volume_table[right_vol];
231 	}
232 
233 	block[0] = (left_vol >> 16) & 0xff;
234 	block[1] = (left_vol >> 8)  & 0xff;
235 	block[2] = (left_vol >> 0)  & 0xff;
236 
237 	block[3] = (right_vol >> 16) & 0xff;
238 	block[4] = (right_vol >> 8)  & 0xff;
239 	block[5] = (right_vol >> 0)  & 0xff;
240 
241 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
242 					   block) < 0) {
243 		snd_printk("failed to set volume \n");
244 		return -EINVAL;
245 	}
246 	return 0;
247 }
248 
249 
250 /* output volume */
251 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
252 				      struct snd_ctl_elem_info *uinfo)
253 {
254 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
255 	uinfo->count = 2;
256 	uinfo->value.integer.min = 0;
257 	uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
258 	return 0;
259 }
260 
261 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
262 				     struct snd_ctl_elem_value *ucontrol)
263 {
264 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
265 	struct pmac_tumbler *mix = chip->mixer_data;
266 	snd_assert(mix, return -ENODEV);
267 	ucontrol->value.integer.value[0] = mix->master_vol[0];
268 	ucontrol->value.integer.value[1] = mix->master_vol[1];
269 	return 0;
270 }
271 
272 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
273 				     struct snd_ctl_elem_value *ucontrol)
274 {
275 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
276 	struct pmac_tumbler *mix = chip->mixer_data;
277 	unsigned int vol[2];
278 	int change;
279 
280 	snd_assert(mix, return -ENODEV);
281 	vol[0] = ucontrol->value.integer.value[0];
282 	vol[1] = ucontrol->value.integer.value[1];
283 	if (vol[0] >= ARRAY_SIZE(master_volume_table) ||
284 	    vol[1] >= ARRAY_SIZE(master_volume_table))
285 		return -EINVAL;
286 	change = mix->master_vol[0] != vol[0] ||
287 		mix->master_vol[1] != vol[1];
288 	if (change) {
289 		mix->master_vol[0] = vol[0];
290 		mix->master_vol[1] = vol[1];
291 		tumbler_set_master_volume(mix);
292 	}
293 	return change;
294 }
295 
296 /* output switch */
297 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
298 				     struct snd_ctl_elem_value *ucontrol)
299 {
300 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
301 	struct pmac_tumbler *mix = chip->mixer_data;
302 	snd_assert(mix, return -ENODEV);
303 	ucontrol->value.integer.value[0] = mix->master_switch[0];
304 	ucontrol->value.integer.value[1] = mix->master_switch[1];
305 	return 0;
306 }
307 
308 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
309 				     struct snd_ctl_elem_value *ucontrol)
310 {
311 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
312 	struct pmac_tumbler *mix = chip->mixer_data;
313 	int change;
314 
315 	snd_assert(mix, return -ENODEV);
316 	change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
317 		mix->master_switch[1] != ucontrol->value.integer.value[1];
318 	if (change) {
319 		mix->master_switch[0] = !!ucontrol->value.integer.value[0];
320 		mix->master_switch[1] = !!ucontrol->value.integer.value[1];
321 		tumbler_set_master_volume(mix);
322 	}
323 	return change;
324 }
325 
326 
327 /*
328  * TAS3001c dynamic range compression
329  */
330 
331 #define TAS3001_DRC_MAX		0x5f
332 
333 static int tumbler_set_drc(struct pmac_tumbler *mix)
334 {
335 	unsigned char val[2];
336 
337 	if (! mix->i2c.client)
338 		return -ENODEV;
339 
340 	if (mix->drc_enable) {
341 		val[0] = 0xc1; /* enable, 3:1 compression */
342 		if (mix->drc_range > TAS3001_DRC_MAX)
343 			val[1] = 0xf0;
344 		else if (mix->drc_range < 0)
345 			val[1] = 0x91;
346 		else
347 			val[1] = mix->drc_range + 0x91;
348 	} else {
349 		val[0] = 0;
350 		val[1] = 0;
351 	}
352 
353 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
354 					   2, val) < 0) {
355 		snd_printk("failed to set DRC\n");
356 		return -EINVAL;
357 	}
358 	return 0;
359 }
360 
361 /*
362  * TAS3004
363  */
364 
365 #define TAS3004_DRC_MAX		0xef
366 
367 static int snapper_set_drc(struct pmac_tumbler *mix)
368 {
369 	unsigned char val[6];
370 
371 	if (! mix->i2c.client)
372 		return -ENODEV;
373 
374 	if (mix->drc_enable)
375 		val[0] = 0x50; /* 3:1 above threshold */
376 	else
377 		val[0] = 0x51; /* disabled */
378 	val[1] = 0x02; /* 1:1 below threshold */
379 	if (mix->drc_range > 0xef)
380 		val[2] = 0xef;
381 	else if (mix->drc_range < 0)
382 		val[2] = 0x00;
383 	else
384 		val[2] = mix->drc_range;
385 	val[3] = 0xb0;
386 	val[4] = 0x60;
387 	val[5] = 0xa0;
388 
389 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
390 					   6, val) < 0) {
391 		snd_printk("failed to set DRC\n");
392 		return -EINVAL;
393 	}
394 	return 0;
395 }
396 
397 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
398 				  struct snd_ctl_elem_info *uinfo)
399 {
400 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
401 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
402 	uinfo->count = 1;
403 	uinfo->value.integer.min = 0;
404 	uinfo->value.integer.max =
405 		chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
406 	return 0;
407 }
408 
409 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
410 				 struct snd_ctl_elem_value *ucontrol)
411 {
412 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
413 	struct pmac_tumbler *mix;
414 	if (! (mix = chip->mixer_data))
415 		return -ENODEV;
416 	ucontrol->value.integer.value[0] = mix->drc_range;
417 	return 0;
418 }
419 
420 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
421 				 struct snd_ctl_elem_value *ucontrol)
422 {
423 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
424 	struct pmac_tumbler *mix;
425 	unsigned int val;
426 	int change;
427 
428 	if (! (mix = chip->mixer_data))
429 		return -ENODEV;
430 	val = ucontrol->value.integer.value[0];
431 	if (chip->model == PMAC_TUMBLER) {
432 		if (val > TAS3001_DRC_MAX)
433 			return -EINVAL;
434 	} else {
435 		if (val > TAS3004_DRC_MAX)
436 			return -EINVAL;
437 	}
438 	change = mix->drc_range != val;
439 	if (change) {
440 		mix->drc_range = val;
441 		if (chip->model == PMAC_TUMBLER)
442 			tumbler_set_drc(mix);
443 		else
444 			snapper_set_drc(mix);
445 	}
446 	return change;
447 }
448 
449 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
450 				  struct snd_ctl_elem_value *ucontrol)
451 {
452 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
453 	struct pmac_tumbler *mix;
454 	if (! (mix = chip->mixer_data))
455 		return -ENODEV;
456 	ucontrol->value.integer.value[0] = mix->drc_enable;
457 	return 0;
458 }
459 
460 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
461 				  struct snd_ctl_elem_value *ucontrol)
462 {
463 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
464 	struct pmac_tumbler *mix;
465 	int change;
466 
467 	if (! (mix = chip->mixer_data))
468 		return -ENODEV;
469 	change = mix->drc_enable != ucontrol->value.integer.value[0];
470 	if (change) {
471 		mix->drc_enable = !!ucontrol->value.integer.value[0];
472 		if (chip->model == PMAC_TUMBLER)
473 			tumbler_set_drc(mix);
474 		else
475 			snapper_set_drc(mix);
476 	}
477 	return change;
478 }
479 
480 
481 /*
482  * mono volumes
483  */
484 
485 struct tumbler_mono_vol {
486 	int index;
487 	int reg;
488 	int bytes;
489 	unsigned int max;
490 	unsigned int *table;
491 };
492 
493 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
494 				   struct tumbler_mono_vol *info)
495 {
496 	unsigned char block[4];
497 	unsigned int vol;
498 	int i;
499 
500 	if (! mix->i2c.client)
501 		return -ENODEV;
502 
503 	vol = mix->mono_vol[info->index];
504 	if (vol >= info->max)
505 		vol = info->max - 1;
506 	vol = info->table[vol];
507 	for (i = 0; i < info->bytes; i++)
508 		block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
509 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
510 					   info->bytes, block) < 0) {
511 		snd_printk("failed to set mono volume %d\n", info->index);
512 		return -EINVAL;
513 	}
514 	return 0;
515 }
516 
517 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
518 			     struct snd_ctl_elem_info *uinfo)
519 {
520 	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
521 
522 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
523 	uinfo->count = 1;
524 	uinfo->value.integer.min = 0;
525 	uinfo->value.integer.max = info->max - 1;
526 	return 0;
527 }
528 
529 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
530 			    struct snd_ctl_elem_value *ucontrol)
531 {
532 	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
533 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
534 	struct pmac_tumbler *mix;
535 	if (! (mix = chip->mixer_data))
536 		return -ENODEV;
537 	ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
538 	return 0;
539 }
540 
541 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
542 			    struct snd_ctl_elem_value *ucontrol)
543 {
544 	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
545 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
546 	struct pmac_tumbler *mix;
547 	unsigned int vol;
548 	int change;
549 
550 	if (! (mix = chip->mixer_data))
551 		return -ENODEV;
552 	vol = ucontrol->value.integer.value[0];
553 	if (vol >= info->max)
554 		return -EINVAL;
555 	change = mix->mono_vol[info->index] != vol;
556 	if (change) {
557 		mix->mono_vol[info->index] = vol;
558 		tumbler_set_mono_volume(mix, info);
559 	}
560 	return change;
561 }
562 
563 /* TAS3001c mono volumes */
564 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
565 	.index = VOL_IDX_PCM_MONO,
566 	.reg = TAS_REG_PCM,
567 	.bytes = 3,
568 	.max = ARRAY_SIZE(mixer_volume_table),
569 	.table = mixer_volume_table,
570 };
571 
572 static struct tumbler_mono_vol tumbler_bass_vol_info = {
573 	.index = VOL_IDX_BASS,
574 	.reg = TAS_REG_BASS,
575 	.bytes = 1,
576 	.max = ARRAY_SIZE(bass_volume_table),
577 	.table = bass_volume_table,
578 };
579 
580 static struct tumbler_mono_vol tumbler_treble_vol_info = {
581 	.index = VOL_IDX_TREBLE,
582 	.reg = TAS_REG_TREBLE,
583 	.bytes = 1,
584 	.max = ARRAY_SIZE(treble_volume_table),
585 	.table = treble_volume_table,
586 };
587 
588 /* TAS3004 mono volumes */
589 static struct tumbler_mono_vol snapper_bass_vol_info = {
590 	.index = VOL_IDX_BASS,
591 	.reg = TAS_REG_BASS,
592 	.bytes = 1,
593 	.max = ARRAY_SIZE(snapper_bass_volume_table),
594 	.table = snapper_bass_volume_table,
595 };
596 
597 static struct tumbler_mono_vol snapper_treble_vol_info = {
598 	.index = VOL_IDX_TREBLE,
599 	.reg = TAS_REG_TREBLE,
600 	.bytes = 1,
601 	.max = ARRAY_SIZE(snapper_treble_volume_table),
602 	.table = snapper_treble_volume_table,
603 };
604 
605 
606 #define DEFINE_MONO(xname,type) { \
607 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
608 	.name = xname, \
609 	.info = tumbler_info_mono, \
610 	.get = tumbler_get_mono, \
611 	.put = tumbler_put_mono, \
612 	.private_value = (unsigned long)(&tumbler_##type##_vol_info), \
613 }
614 
615 #define DEFINE_SNAPPER_MONO(xname,type) { \
616 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
617 	.name = xname, \
618 	.info = tumbler_info_mono, \
619 	.get = tumbler_get_mono, \
620 	.put = tumbler_put_mono, \
621 	.private_value = (unsigned long)(&snapper_##type##_vol_info), \
622 }
623 
624 
625 /*
626  * snapper mixer volumes
627  */
628 
629 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
630 {
631 	int i, j, vol;
632 	unsigned char block[9];
633 
634 	vol = mix->mix_vol[idx][ch];
635 	if (vol >= ARRAY_SIZE(mixer_volume_table)) {
636 		vol = ARRAY_SIZE(mixer_volume_table) - 1;
637 		mix->mix_vol[idx][ch] = vol;
638 	}
639 
640 	for (i = 0; i < 3; i++) {
641 		vol = mix->mix_vol[i][ch];
642 		vol = mixer_volume_table[vol];
643 		for (j = 0; j < 3; j++)
644 			block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
645 	}
646 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
647 					   9, block) < 0) {
648 		snd_printk("failed to set mono volume %d\n", reg);
649 		return -EINVAL;
650 	}
651 	return 0;
652 }
653 
654 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
655 {
656 	if (! mix->i2c.client)
657 		return -ENODEV;
658 	if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
659 	    snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
660 		return -EINVAL;
661 	return 0;
662 }
663 
664 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
665 			    struct snd_ctl_elem_info *uinfo)
666 {
667 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
668 	uinfo->count = 2;
669 	uinfo->value.integer.min = 0;
670 	uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
671 	return 0;
672 }
673 
674 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
675 			   struct snd_ctl_elem_value *ucontrol)
676 {
677 	int idx = (int)kcontrol->private_value;
678 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
679 	struct pmac_tumbler *mix;
680 	if (! (mix = chip->mixer_data))
681 		return -ENODEV;
682 	ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
683 	ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
684 	return 0;
685 }
686 
687 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
688 			   struct snd_ctl_elem_value *ucontrol)
689 {
690 	int idx = (int)kcontrol->private_value;
691 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
692 	struct pmac_tumbler *mix;
693 	unsigned int vol[2];
694 	int change;
695 
696 	if (! (mix = chip->mixer_data))
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 	if (! (mix = chip->mixer_data))
728 		return -ENODEV;
729 	switch(kcontrol->private_value) {
730 	case TUMBLER_MUTE_HP:
731 		gp = &mix->hp_mute;	break;
732 	case TUMBLER_MUTE_AMP:
733 		gp = &mix->amp_mute;	break;
734 	case TUMBLER_MUTE_LINE:
735 		gp = &mix->line_mute;	break;
736 	default:
737 		gp = NULL;
738 	}
739 	if (gp == NULL)
740 		return -EINVAL;
741 	ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
742 	return 0;
743 }
744 
745 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
746 				   struct snd_ctl_elem_value *ucontrol)
747 {
748 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
749 	struct pmac_tumbler *mix;
750 	struct pmac_gpio *gp;
751 	int val;
752 #ifdef PMAC_SUPPORT_AUTOMUTE
753 	if (chip->update_automute && chip->auto_mute)
754 		return 0; /* don't touch in the auto-mute mode */
755 #endif
756 	if (! (mix = chip->mixer_data))
757 		return -ENODEV;
758 	switch(kcontrol->private_value) {
759 	case TUMBLER_MUTE_HP:
760 		gp = &mix->hp_mute;	break;
761 	case TUMBLER_MUTE_AMP:
762 		gp = &mix->amp_mute;	break;
763 	case TUMBLER_MUTE_LINE:
764 		gp = &mix->line_mute;	break;
765 	default:
766 		gp = NULL;
767 	}
768 	if (gp == NULL)
769 		return -EINVAL;
770 	val = ! check_audio_gpio(gp);
771 	if (val != ucontrol->value.integer.value[0]) {
772 		write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
773 		return 1;
774 	}
775 	return 0;
776 }
777 
778 static int snapper_set_capture_source(struct pmac_tumbler *mix)
779 {
780 	if (! mix->i2c.client)
781 		return -ENODEV;
782 	if (mix->capture_source)
783 		mix->acs = mix->acs |= 2;
784 	else
785 		mix->acs &= ~2;
786 	return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
787 }
788 
789 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
790 				       struct snd_ctl_elem_info *uinfo)
791 {
792 	static char *texts[2] = {
793 		"Line", "Mic"
794 	};
795 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
796 	uinfo->count = 1;
797 	uinfo->value.enumerated.items = 2;
798 	if (uinfo->value.enumerated.item > 1)
799 		uinfo->value.enumerated.item = 1;
800 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
801 	return 0;
802 }
803 
804 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
805 				      struct snd_ctl_elem_value *ucontrol)
806 {
807 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
808 	struct pmac_tumbler *mix = chip->mixer_data;
809 
810 	snd_assert(mix, return -ENODEV);
811 	ucontrol->value.enumerated.item[0] = mix->capture_source;
812 	return 0;
813 }
814 
815 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
816 				      struct snd_ctl_elem_value *ucontrol)
817 {
818 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
819 	struct pmac_tumbler *mix = chip->mixer_data;
820 	int change;
821 
822 	snd_assert(mix, return -ENODEV);
823 	change = ucontrol->value.enumerated.item[0] != mix->capture_source;
824 	if (change) {
825 		mix->capture_source = !!ucontrol->value.enumerated.item[0];
826 		snapper_set_capture_source(mix);
827 	}
828 	return change;
829 }
830 
831 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
832 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
833 	.name = xname, \
834 	.info = snapper_info_mix, \
835 	.get = snapper_get_mix, \
836 	.put = snapper_put_mix, \
837 	.index = idx,\
838 	.private_value = ofs, \
839 }
840 
841 
842 /*
843  */
844 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
845 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
846 	  .name = "Master Playback Volume",
847 	  .info = tumbler_info_master_volume,
848 	  .get = tumbler_get_master_volume,
849 	  .put = tumbler_put_master_volume
850 	},
851 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
852 	  .name = "Master Playback Switch",
853 	  .info = snd_pmac_boolean_stereo_info,
854 	  .get = tumbler_get_master_switch,
855 	  .put = tumbler_put_master_switch
856 	},
857 	DEFINE_MONO("Tone Control - Bass", bass),
858 	DEFINE_MONO("Tone Control - Treble", treble),
859 	DEFINE_MONO("PCM Playback Volume", pcm),
860 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
861 	  .name = "DRC Range",
862 	  .info = tumbler_info_drc_value,
863 	  .get = tumbler_get_drc_value,
864 	  .put = tumbler_put_drc_value
865 	},
866 };
867 
868 static struct snd_kcontrol_new snapper_mixers[] __initdata = {
869 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
870 	  .name = "Master Playback Volume",
871 	  .info = tumbler_info_master_volume,
872 	  .get = tumbler_get_master_volume,
873 	  .put = tumbler_put_master_volume
874 	},
875 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
876 	  .name = "Master Playback Switch",
877 	  .info = snd_pmac_boolean_stereo_info,
878 	  .get = tumbler_get_master_switch,
879 	  .put = tumbler_put_master_switch
880 	},
881 	DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
882 	DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
883 	DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
884 	DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
885 	DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
886 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
887 	  .name = "DRC Range",
888 	  .info = tumbler_info_drc_value,
889 	  .get = tumbler_get_drc_value,
890 	  .put = tumbler_put_drc_value
891 	},
892 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
893 	  .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
894 	  .info = snapper_info_capture_source,
895 	  .get = snapper_get_capture_source,
896 	  .put = snapper_put_capture_source
897 	},
898 };
899 
900 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
901 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
902 	.name = "Headphone Playback Switch",
903 	.info = snd_pmac_boolean_mono_info,
904 	.get = tumbler_get_mute_switch,
905 	.put = tumbler_put_mute_switch,
906 	.private_value = TUMBLER_MUTE_HP,
907 };
908 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
909 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
910 	.name = "PC Speaker Playback Switch",
911 	.info = snd_pmac_boolean_mono_info,
912 	.get = tumbler_get_mute_switch,
913 	.put = tumbler_put_mute_switch,
914 	.private_value = TUMBLER_MUTE_AMP,
915 };
916 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
917 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
918 	.name = "Line Out Playback Switch",
919 	.info = snd_pmac_boolean_mono_info,
920 	.get = tumbler_get_mute_switch,
921 	.put = tumbler_put_mute_switch,
922 	.private_value = TUMBLER_MUTE_LINE,
923 };
924 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
925 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
926 	.name = "DRC Switch",
927 	.info = snd_pmac_boolean_mono_info,
928 	.get = tumbler_get_drc_switch,
929 	.put = tumbler_put_drc_switch
930 };
931 
932 
933 #ifdef PMAC_SUPPORT_AUTOMUTE
934 /*
935  * auto-mute stuffs
936  */
937 static int tumbler_detect_headphone(struct snd_pmac *chip)
938 {
939 	struct pmac_tumbler *mix = chip->mixer_data;
940 	int detect = 0;
941 
942 	if (mix->hp_detect.addr)
943 		detect |= read_audio_gpio(&mix->hp_detect);
944 	return detect;
945 }
946 
947 static int tumbler_detect_lineout(struct snd_pmac *chip)
948 {
949 	struct pmac_tumbler *mix = chip->mixer_data;
950 	int detect = 0;
951 
952 	if (mix->line_detect.addr)
953 		detect |= read_audio_gpio(&mix->line_detect);
954 	return detect;
955 }
956 
957 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
958 		       struct snd_kcontrol *sw)
959 {
960 	if (check_audio_gpio(gp) != val) {
961 		write_audio_gpio(gp, val);
962 		if (do_notify)
963 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
964 				       &sw->id);
965 	}
966 }
967 
968 static struct work_struct device_change;
969 static struct snd_pmac *device_change_chip;
970 
971 static void device_change_handler(struct work_struct *work)
972 {
973 	struct snd_pmac *chip = device_change_chip;
974 	struct pmac_tumbler *mix;
975 	int headphone, lineout;
976 
977 	if (!chip)
978 		return;
979 
980 	mix = chip->mixer_data;
981 	snd_assert(mix, return);
982 
983 	headphone = tumbler_detect_headphone(chip);
984 	lineout = tumbler_detect_lineout(chip);
985 
986 	DBG("headphone: %d, lineout: %d\n", headphone, lineout);
987 
988 	if (headphone || lineout) {
989 		/* unmute headphone/lineout & mute speaker */
990 		if (headphone)
991 			check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
992 				   chip->master_sw_ctl);
993 		if (lineout && mix->line_mute.addr != 0)
994 			check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
995 				   chip->lineout_sw_ctl);
996 		if (mix->anded_reset)
997 			msleep(10);
998 		check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
999 			   chip->speaker_sw_ctl);
1000 	} else {
1001 		/* unmute speaker, mute others */
1002 		check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
1003 			   chip->speaker_sw_ctl);
1004 		if (mix->anded_reset)
1005 			msleep(10);
1006 		check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
1007 			   chip->master_sw_ctl);
1008 		if (mix->line_mute.addr != 0)
1009 			check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
1010 				   chip->lineout_sw_ctl);
1011 	}
1012 	if (mix->auto_mute_notify)
1013 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1014 				       &chip->hp_detect_ctl->id);
1015 
1016 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
1017 	mix->drc_enable = ! (headphone || lineout);
1018 	if (mix->auto_mute_notify)
1019 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
1020 			       &chip->drc_sw_ctl->id);
1021 	if (chip->model == PMAC_TUMBLER)
1022 		tumbler_set_drc(mix);
1023 	else
1024 		snapper_set_drc(mix);
1025 #endif
1026 
1027 	/* reset the master volume so the correct amplification is applied */
1028 	tumbler_set_master_volume(mix);
1029 }
1030 
1031 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1032 {
1033 	if (chip->auto_mute) {
1034 		struct pmac_tumbler *mix;
1035 		mix = chip->mixer_data;
1036 		snd_assert(mix, return);
1037 		mix->auto_mute_notify = do_notify;
1038 		schedule_work(&device_change);
1039 	}
1040 }
1041 #endif /* PMAC_SUPPORT_AUTOMUTE */
1042 
1043 
1044 /* interrupt - headphone plug changed */
1045 static irqreturn_t headphone_intr(int irq, void *devid)
1046 {
1047 	struct snd_pmac *chip = devid;
1048 	if (chip->update_automute && chip->initialized) {
1049 		chip->update_automute(chip, 1);
1050 		return IRQ_HANDLED;
1051 	}
1052 	return IRQ_NONE;
1053 }
1054 
1055 /* look for audio-gpio device */
1056 static struct device_node *find_audio_device(const char *name)
1057 {
1058 	struct device_node *gpiop;
1059 	struct device_node *np;
1060 
1061 	gpiop = of_find_node_by_name(NULL, "gpio");
1062 	if (! gpiop)
1063 		return NULL;
1064 
1065 	for (np = of_get_next_child(gpiop, NULL); np;
1066 			np = of_get_next_child(gpiop, np)) {
1067 		const char *property = of_get_property(np, "audio-gpio", NULL);
1068 		if (property && strcmp(property, name) == 0)
1069 			break;
1070 	}
1071 	of_node_put(gpiop);
1072 	return np;
1073 }
1074 
1075 /* look for audio-gpio device */
1076 static struct device_node *find_compatible_audio_device(const char *name)
1077 {
1078 	struct device_node *gpiop;
1079 	struct device_node *np;
1080 
1081 	gpiop = of_find_node_by_name(NULL, "gpio");
1082 	if (!gpiop)
1083 		return NULL;
1084 
1085 	for (np = of_get_next_child(gpiop, NULL); np;
1086 			np = of_get_next_child(gpiop, np)) {
1087 		if (of_device_is_compatible(np, name))
1088 			break;
1089 	}
1090 	of_node_put(gpiop);
1091 	return np;
1092 }
1093 
1094 /* find an audio device and get its address */
1095 static long tumbler_find_device(const char *device, const char *platform,
1096 				struct pmac_gpio *gp, int is_compatible)
1097 {
1098 	struct device_node *node;
1099 	const u32 *base;
1100 	u32 addr;
1101 	long ret;
1102 
1103 	if (is_compatible)
1104 		node = find_compatible_audio_device(device);
1105 	else
1106 		node = find_audio_device(device);
1107 	if (! node) {
1108 		DBG("(W) cannot find audio device %s !\n", device);
1109 		snd_printdd("cannot find device %s\n", device);
1110 		return -ENODEV;
1111 	}
1112 
1113 	base = of_get_property(node, "AAPL,address", NULL);
1114 	if (! base) {
1115 		base = of_get_property(node, "reg", NULL);
1116 		if (!base) {
1117 			DBG("(E) cannot find address for device %s !\n", device);
1118 			snd_printd("cannot find address for device %s\n", device);
1119 			of_node_put(node);
1120 			return -ENODEV;
1121 		}
1122 		addr = *base;
1123 		if (addr < 0x50)
1124 			addr += 0x50;
1125 	} else
1126 		addr = *base;
1127 
1128 	gp->addr = addr & 0x0000ffff;
1129 	/* Try to find the active state, default to 0 ! */
1130 	base = of_get_property(node, "audio-gpio-active-state", NULL);
1131 	if (base) {
1132 		gp->active_state = *base;
1133 		gp->active_val = (*base) ? 0x5 : 0x4;
1134 		gp->inactive_val = (*base) ? 0x4 : 0x5;
1135 	} else {
1136 		const u32 *prop = NULL;
1137 		gp->active_state = 0;
1138 		gp->active_val = 0x4;
1139 		gp->inactive_val = 0x5;
1140 		/* Here are some crude hacks to extract the GPIO polarity and
1141 		 * open collector informations out of the do-platform script
1142 		 * as we don't yet have an interpreter for these things
1143 		 */
1144 		if (platform)
1145 			prop = of_get_property(node, platform, NULL);
1146 		if (prop) {
1147 			if (prop[3] == 0x9 && prop[4] == 0x9) {
1148 				gp->active_val = 0xd;
1149 				gp->inactive_val = 0xc;
1150 			}
1151 			if (prop[3] == 0x1 && prop[4] == 0x1) {
1152 				gp->active_val = 0x5;
1153 				gp->inactive_val = 0x4;
1154 			}
1155 		}
1156 	}
1157 
1158 	DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1159 	    device, gp->addr, gp->active_state);
1160 
1161 	ret = irq_of_parse_and_map(node, 0);
1162 	of_node_put(node);
1163 	return ret;
1164 }
1165 
1166 /* reset audio */
1167 static void tumbler_reset_audio(struct snd_pmac *chip)
1168 {
1169 	struct pmac_tumbler *mix = chip->mixer_data;
1170 
1171 	if (mix->anded_reset) {
1172 		DBG("(I) codec anded reset !\n");
1173 		write_audio_gpio(&mix->hp_mute, 0);
1174 		write_audio_gpio(&mix->amp_mute, 0);
1175 		msleep(200);
1176 		write_audio_gpio(&mix->hp_mute, 1);
1177 		write_audio_gpio(&mix->amp_mute, 1);
1178 		msleep(100);
1179 		write_audio_gpio(&mix->hp_mute, 0);
1180 		write_audio_gpio(&mix->amp_mute, 0);
1181 		msleep(100);
1182 	} else {
1183 		DBG("(I) codec normal reset !\n");
1184 
1185 		write_audio_gpio(&mix->audio_reset, 0);
1186 		msleep(200);
1187 		write_audio_gpio(&mix->audio_reset, 1);
1188 		msleep(100);
1189 		write_audio_gpio(&mix->audio_reset, 0);
1190 		msleep(100);
1191 	}
1192 }
1193 
1194 #ifdef CONFIG_PM
1195 /* suspend mixer */
1196 static void tumbler_suspend(struct snd_pmac *chip)
1197 {
1198 	struct pmac_tumbler *mix = chip->mixer_data;
1199 
1200 	if (mix->headphone_irq >= 0)
1201 		disable_irq(mix->headphone_irq);
1202 	if (mix->lineout_irq >= 0)
1203 		disable_irq(mix->lineout_irq);
1204 	mix->save_master_switch[0] = mix->master_switch[0];
1205 	mix->save_master_switch[1] = mix->master_switch[1];
1206 	mix->save_master_vol[0] = mix->master_vol[0];
1207 	mix->save_master_vol[1] = mix->master_vol[1];
1208 	mix->master_switch[0] = mix->master_switch[1] = 0;
1209 	tumbler_set_master_volume(mix);
1210 	if (!mix->anded_reset) {
1211 		write_audio_gpio(&mix->amp_mute, 1);
1212 		write_audio_gpio(&mix->hp_mute, 1);
1213 	}
1214 	if (chip->model == PMAC_SNAPPER) {
1215 		mix->acs |= 1;
1216 		i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1217 	}
1218 	if (mix->anded_reset) {
1219 		write_audio_gpio(&mix->amp_mute, 1);
1220 		write_audio_gpio(&mix->hp_mute, 1);
1221 	} else
1222 		write_audio_gpio(&mix->audio_reset, 1);
1223 }
1224 
1225 /* resume mixer */
1226 static void tumbler_resume(struct snd_pmac *chip)
1227 {
1228 	struct pmac_tumbler *mix = chip->mixer_data;
1229 
1230 	snd_assert(mix, return);
1231 
1232 	mix->acs &= ~1;
1233 	mix->master_switch[0] = mix->save_master_switch[0];
1234 	mix->master_switch[1] = mix->save_master_switch[1];
1235 	mix->master_vol[0] = mix->save_master_vol[0];
1236 	mix->master_vol[1] = mix->save_master_vol[1];
1237 	tumbler_reset_audio(chip);
1238 	if (mix->i2c.client && mix->i2c.init_client) {
1239 		if (mix->i2c.init_client(&mix->i2c) < 0)
1240 			printk(KERN_ERR "tumbler_init_client error\n");
1241 	} else
1242 		printk(KERN_ERR "tumbler: i2c is not initialized\n");
1243 	if (chip->model == PMAC_TUMBLER) {
1244 		tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1245 		tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1246 		tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1247 		tumbler_set_drc(mix);
1248 	} else {
1249 		snapper_set_mix_vol(mix, VOL_IDX_PCM);
1250 		snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1251 		snapper_set_mix_vol(mix, VOL_IDX_ADC);
1252 		tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1253 		tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1254 		snapper_set_drc(mix);
1255 		snapper_set_capture_source(mix);
1256 	}
1257 	tumbler_set_master_volume(mix);
1258 	if (chip->update_automute)
1259 		chip->update_automute(chip, 0);
1260 	if (mix->headphone_irq >= 0) {
1261 		unsigned char val;
1262 
1263 		enable_irq(mix->headphone_irq);
1264 		/* activate headphone status interrupts */
1265 		val = do_gpio_read(&mix->hp_detect);
1266 		do_gpio_write(&mix->hp_detect, val | 0x80);
1267 	}
1268 	if (mix->lineout_irq >= 0)
1269 		enable_irq(mix->lineout_irq);
1270 }
1271 #endif
1272 
1273 /* initialize tumbler */
1274 static int __init tumbler_init(struct snd_pmac *chip)
1275 {
1276 	int irq;
1277 	struct pmac_tumbler *mix = chip->mixer_data;
1278 	snd_assert(mix, return -EINVAL);
1279 
1280 	if (tumbler_find_device("audio-hw-reset",
1281 				"platform-do-hw-reset",
1282 				&mix->audio_reset, 0) < 0)
1283 		tumbler_find_device("hw-reset",
1284 				    "platform-do-hw-reset",
1285 				    &mix->audio_reset, 1);
1286 	if (tumbler_find_device("amp-mute",
1287 				"platform-do-amp-mute",
1288 				&mix->amp_mute, 0) < 0)
1289 		tumbler_find_device("amp-mute",
1290 				    "platform-do-amp-mute",
1291 				    &mix->amp_mute, 1);
1292 	if (tumbler_find_device("headphone-mute",
1293 				"platform-do-headphone-mute",
1294 				&mix->hp_mute, 0) < 0)
1295 		tumbler_find_device("headphone-mute",
1296 				    "platform-do-headphone-mute",
1297 				    &mix->hp_mute, 1);
1298 	if (tumbler_find_device("line-output-mute",
1299 				"platform-do-lineout-mute",
1300 				&mix->line_mute, 0) < 0)
1301 		tumbler_find_device("line-output-mute",
1302 				   "platform-do-lineout-mute",
1303 				    &mix->line_mute, 1);
1304 	irq = tumbler_find_device("headphone-detect",
1305 				  NULL, &mix->hp_detect, 0);
1306 	if (irq <= NO_IRQ)
1307 		irq = tumbler_find_device("headphone-detect",
1308 					  NULL, &mix->hp_detect, 1);
1309 	if (irq <= NO_IRQ)
1310 		irq = tumbler_find_device("keywest-gpio15",
1311 					  NULL, &mix->hp_detect, 1);
1312 	mix->headphone_irq = irq;
1313  	irq = tumbler_find_device("line-output-detect",
1314 				  NULL, &mix->line_detect, 0);
1315  	if (irq <= NO_IRQ)
1316 		irq = tumbler_find_device("line-output-detect",
1317 					  NULL, &mix->line_detect, 1);
1318 	mix->lineout_irq = irq;
1319 
1320 	tumbler_reset_audio(chip);
1321 
1322 	return 0;
1323 }
1324 
1325 static void tumbler_cleanup(struct snd_pmac *chip)
1326 {
1327 	struct pmac_tumbler *mix = chip->mixer_data;
1328 	if (! mix)
1329 		return;
1330 
1331 	if (mix->headphone_irq >= 0)
1332 		free_irq(mix->headphone_irq, chip);
1333 	if (mix->lineout_irq >= 0)
1334 		free_irq(mix->lineout_irq, chip);
1335 	tumbler_gpio_free(&mix->audio_reset);
1336 	tumbler_gpio_free(&mix->amp_mute);
1337 	tumbler_gpio_free(&mix->hp_mute);
1338 	tumbler_gpio_free(&mix->hp_detect);
1339 	snd_pmac_keywest_cleanup(&mix->i2c);
1340 	kfree(mix);
1341 	chip->mixer_data = NULL;
1342 }
1343 
1344 /* exported */
1345 int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
1346 {
1347 	int i, err;
1348 	struct pmac_tumbler *mix;
1349 	const u32 *paddr;
1350 	struct device_node *tas_node, *np;
1351 	char *chipname;
1352 
1353 #ifdef CONFIG_KMOD
1354 	request_module("i2c-powermac");
1355 #endif /* CONFIG_KMOD */
1356 
1357 	mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1358 	if (! mix)
1359 		return -ENOMEM;
1360 	mix->headphone_irq = -1;
1361 
1362 	chip->mixer_data = mix;
1363 	chip->mixer_free = tumbler_cleanup;
1364 	mix->anded_reset = 0;
1365 	mix->reset_on_sleep = 1;
1366 
1367 	for (np = chip->node->child; np; np = np->sibling) {
1368 		if (!strcmp(np->name, "sound")) {
1369 			if (of_get_property(np, "has-anded-reset", NULL))
1370 				mix->anded_reset = 1;
1371 			if (of_get_property(np, "layout-id", NULL))
1372 				mix->reset_on_sleep = 0;
1373 			break;
1374 		}
1375 	}
1376 	if ((err = tumbler_init(chip)) < 0)
1377 		return err;
1378 
1379 	/* set up TAS */
1380 	tas_node = of_find_node_by_name(NULL, "deq");
1381 	if (tas_node == NULL)
1382 		tas_node = of_find_node_by_name(NULL, "codec");
1383 	if (tas_node == NULL)
1384 		return -ENODEV;
1385 
1386 	paddr = of_get_property(tas_node, "i2c-address", NULL);
1387 	if (paddr == NULL)
1388 		paddr = of_get_property(tas_node, "reg", NULL);
1389 	if (paddr)
1390 		mix->i2c.addr = (*paddr) >> 1;
1391 	else
1392 		mix->i2c.addr = TAS_I2C_ADDR;
1393 	of_node_put(tas_node);
1394 
1395 	DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1396 
1397 	if (chip->model == PMAC_TUMBLER) {
1398 		mix->i2c.init_client = tumbler_init_client;
1399 		mix->i2c.name = "TAS3001c";
1400 		chipname = "Tumbler";
1401 	} else {
1402 		mix->i2c.init_client = snapper_init_client;
1403 		mix->i2c.name = "TAS3004";
1404 		chipname = "Snapper";
1405 	}
1406 
1407 	if ((err = snd_pmac_keywest_init(&mix->i2c)) < 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 			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1418 				return err;
1419 		}
1420 	} else {
1421 		for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1422 			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1423 				return err;
1424 		}
1425 	}
1426 	chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1427 	if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1428 		return err;
1429 	chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1430 	if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1431 		return err;
1432 	if (mix->line_mute.addr != 0) {
1433 		chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1434 		if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1435 			return err;
1436 	}
1437 	chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1438 	if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1439 		return err;
1440 
1441 	/* set initial DRC range to 60% */
1442 	if (chip->model == PMAC_TUMBLER)
1443 		mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1444 	else
1445 		mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1446 	mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1447 	if (chip->model == PMAC_TUMBLER)
1448 		tumbler_set_drc(mix);
1449 	else
1450 		snapper_set_drc(mix);
1451 
1452 #ifdef CONFIG_PM
1453 	chip->suspend = tumbler_suspend;
1454 	chip->resume = tumbler_resume;
1455 #endif
1456 
1457 	INIT_WORK(&device_change, device_change_handler);
1458 	device_change_chip = chip;
1459 
1460 #ifdef PMAC_SUPPORT_AUTOMUTE
1461 	if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1462 	    && (err = snd_pmac_add_automute(chip)) < 0)
1463 		return err;
1464 	chip->detect_headphone = tumbler_detect_headphone;
1465 	chip->update_automute = tumbler_update_automute;
1466 	tumbler_update_automute(chip, 0); /* update the status only */
1467 
1468 	/* activate headphone status interrupts */
1469   	if (mix->headphone_irq >= 0) {
1470 		unsigned char val;
1471 		if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1472 				       "Sound Headphone Detection", chip)) < 0)
1473 			return 0;
1474 		/* activate headphone status interrupts */
1475 		val = do_gpio_read(&mix->hp_detect);
1476 		do_gpio_write(&mix->hp_detect, val | 0x80);
1477 	}
1478   	if (mix->lineout_irq >= 0) {
1479 		unsigned char val;
1480 		if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1481 				       "Sound Lineout Detection", chip)) < 0)
1482 			return 0;
1483 		/* activate headphone status interrupts */
1484 		val = do_gpio_read(&mix->line_detect);
1485 		do_gpio_write(&mix->line_detect, val | 0x80);
1486 	}
1487 #endif
1488 
1489 	return 0;
1490 }
1491