xref: /openbmc/linux/sound/ppc/tumbler.c (revision e868d61272caa648214046a096e5a6bfc068dc8c)
1 /*
2  * PMac Tumbler/Snapper lowlevel functions
3  *
4  * Copyright (c) by Takashi Iwai <tiwai@suse.de>
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  *   Rene Rebe <rene.rebe@gmx.net>:
21  *     * update from shadow registers on wakeup and headphone plug
22  *     * automatically toggle DRC on headphone plug
23  *
24  */
25 
26 
27 #include <sound/driver.h>
28 #include <linux/init.h>
29 #include <linux/delay.h>
30 #include <linux/i2c.h>
31 #include <linux/kmod.h>
32 #include <linux/slab.h>
33 #include <linux/interrupt.h>
34 #include <sound/core.h>
35 #include <asm/io.h>
36 #include <asm/irq.h>
37 #include <asm/machdep.h>
38 #include <asm/pmac_feature.h>
39 #include "pmac.h"
40 #include "tumbler_volume.h"
41 
42 #undef DEBUG
43 
44 #ifdef DEBUG
45 #define DBG(fmt...) printk(fmt)
46 #else
47 #define DBG(fmt...)
48 #endif
49 
50 /* i2c address for tumbler */
51 #define TAS_I2C_ADDR	0x34
52 
53 /* registers */
54 #define TAS_REG_MCS	0x01	/* main control */
55 #define TAS_REG_DRC	0x02
56 #define TAS_REG_VOL	0x04
57 #define TAS_REG_TREBLE	0x05
58 #define TAS_REG_BASS	0x06
59 #define TAS_REG_INPUT1	0x07
60 #define TAS_REG_INPUT2	0x08
61 
62 /* tas3001c */
63 #define TAS_REG_PCM	TAS_REG_INPUT1
64 
65 /* tas3004 */
66 #define TAS_REG_LMIX	TAS_REG_INPUT1
67 #define TAS_REG_RMIX	TAS_REG_INPUT2
68 #define TAS_REG_MCS2	0x43		/* main control 2 */
69 #define TAS_REG_ACS	0x40		/* analog control */
70 
71 /* mono volumes for tas3001c/tas3004 */
72 enum {
73 	VOL_IDX_PCM_MONO, /* tas3001c only */
74 	VOL_IDX_BASS, VOL_IDX_TREBLE,
75 	VOL_IDX_LAST_MONO
76 };
77 
78 /* stereo volumes for tas3004 */
79 enum {
80 	VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
81 	VOL_IDX_LAST_MIX
82 };
83 
84 struct pmac_gpio {
85 	unsigned int addr;
86 	u8 active_val;
87 	u8 inactive_val;
88 	u8 active_state;
89 };
90 
91 struct pmac_tumbler {
92 	struct pmac_keywest i2c;
93 	struct pmac_gpio audio_reset;
94 	struct pmac_gpio amp_mute;
95 	struct pmac_gpio line_mute;
96 	struct pmac_gpio line_detect;
97 	struct pmac_gpio hp_mute;
98 	struct pmac_gpio hp_detect;
99 	int headphone_irq;
100 	int lineout_irq;
101 	unsigned int save_master_vol[2];
102 	unsigned int master_vol[2];
103 	unsigned int save_master_switch[2];
104 	unsigned int master_switch[2];
105 	unsigned int mono_vol[VOL_IDX_LAST_MONO];
106 	unsigned int mix_vol[VOL_IDX_LAST_MIX][2]; /* stereo volumes for tas3004 */
107 	int drc_range;
108 	int drc_enable;
109 	int capture_source;
110 	int anded_reset;
111 	int auto_mute_notify;
112 	int reset_on_sleep;
113 	u8  acs;
114 };
115 
116 
117 /*
118  */
119 
120 static int send_init_client(struct pmac_keywest *i2c, unsigned int *regs)
121 {
122 	while (*regs > 0) {
123 		int err, count = 10;
124 		do {
125 			err = i2c_smbus_write_byte_data(i2c->client,
126 							regs[0], regs[1]);
127 			if (err >= 0)
128 				break;
129 			DBG("(W) i2c error %d\n", err);
130 			mdelay(10);
131 		} while (count--);
132 		if (err < 0)
133 			return -ENXIO;
134 		regs += 2;
135 	}
136 	return 0;
137 }
138 
139 
140 static int tumbler_init_client(struct pmac_keywest *i2c)
141 {
142 	static unsigned int regs[] = {
143 		/* normal operation, SCLK=64fps, i2s output, i2s input, 16bit width */
144 		TAS_REG_MCS, (1<<6)|(2<<4)|(2<<2)|0,
145 		0, /* terminator */
146 	};
147 	DBG("(I) tumbler init client\n");
148 	return send_init_client(i2c, regs);
149 }
150 
151 static int snapper_init_client(struct pmac_keywest *i2c)
152 {
153 	static unsigned int regs[] = {
154 		/* normal operation, SCLK=64fps, i2s output, 16bit width */
155 		TAS_REG_MCS, (1<<6)|(2<<4)|0,
156 		/* normal operation, all-pass mode */
157 		TAS_REG_MCS2, (1<<1),
158 		/* normal output, no deemphasis, A input, power-up, line-in */
159 		TAS_REG_ACS, 0,
160 		0, /* terminator */
161 	};
162 	DBG("(I) snapper init client\n");
163 	return send_init_client(i2c, regs);
164 }
165 
166 /*
167  * gpio access
168  */
169 #define do_gpio_write(gp, val) \
170 	pmac_call_feature(PMAC_FTR_WRITE_GPIO, NULL, (gp)->addr, val)
171 #define do_gpio_read(gp) \
172 	pmac_call_feature(PMAC_FTR_READ_GPIO, NULL, (gp)->addr, 0)
173 #define tumbler_gpio_free(gp) /* NOP */
174 
175 static void write_audio_gpio(struct pmac_gpio *gp, int active)
176 {
177 	if (! gp->addr)
178 		return;
179 	active = active ? gp->active_val : gp->inactive_val;
180 	do_gpio_write(gp, active);
181 	DBG("(I) gpio %x write %d\n", gp->addr, active);
182 }
183 
184 static int check_audio_gpio(struct pmac_gpio *gp)
185 {
186 	int ret;
187 
188 	if (! gp->addr)
189 		return 0;
190 
191 	ret = do_gpio_read(gp);
192 
193 	return (ret & 0x1) == (gp->active_val & 0x1);
194 }
195 
196 static int read_audio_gpio(struct pmac_gpio *gp)
197 {
198 	int ret;
199 	if (! gp->addr)
200 		return 0;
201 	ret = do_gpio_read(gp);
202 	ret = (ret & 0x02) !=0;
203 	return ret == gp->active_state;
204 }
205 
206 /*
207  * update master volume
208  */
209 static int tumbler_set_master_volume(struct pmac_tumbler *mix)
210 {
211 	unsigned char block[6];
212 	unsigned int left_vol, right_vol;
213 
214 	if (! mix->i2c.client)
215 		return -ENODEV;
216 
217 	if (! mix->master_switch[0])
218 		left_vol = 0;
219 	else {
220 		left_vol = mix->master_vol[0];
221 		if (left_vol >= ARRAY_SIZE(master_volume_table))
222 			left_vol = ARRAY_SIZE(master_volume_table) - 1;
223 		left_vol = master_volume_table[left_vol];
224 	}
225 	if (! mix->master_switch[1])
226 		right_vol = 0;
227 	else {
228 		right_vol = mix->master_vol[1];
229 		if (right_vol >= ARRAY_SIZE(master_volume_table))
230 			right_vol = ARRAY_SIZE(master_volume_table) - 1;
231 		right_vol = master_volume_table[right_vol];
232 	}
233 
234 	block[0] = (left_vol >> 16) & 0xff;
235 	block[1] = (left_vol >> 8)  & 0xff;
236 	block[2] = (left_vol >> 0)  & 0xff;
237 
238 	block[3] = (right_vol >> 16) & 0xff;
239 	block[4] = (right_vol >> 8)  & 0xff;
240 	block[5] = (right_vol >> 0)  & 0xff;
241 
242 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_VOL, 6,
243 					   block) < 0) {
244 		snd_printk("failed to set volume \n");
245 		return -EINVAL;
246 	}
247 	return 0;
248 }
249 
250 
251 /* output volume */
252 static int tumbler_info_master_volume(struct snd_kcontrol *kcontrol,
253 				      struct snd_ctl_elem_info *uinfo)
254 {
255 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
256 	uinfo->count = 2;
257 	uinfo->value.integer.min = 0;
258 	uinfo->value.integer.max = ARRAY_SIZE(master_volume_table) - 1;
259 	return 0;
260 }
261 
262 static int tumbler_get_master_volume(struct snd_kcontrol *kcontrol,
263 				     struct snd_ctl_elem_value *ucontrol)
264 {
265 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
266 	struct pmac_tumbler *mix = chip->mixer_data;
267 	snd_assert(mix, return -ENODEV);
268 	ucontrol->value.integer.value[0] = mix->master_vol[0];
269 	ucontrol->value.integer.value[1] = mix->master_vol[1];
270 	return 0;
271 }
272 
273 static int tumbler_put_master_volume(struct snd_kcontrol *kcontrol,
274 				     struct snd_ctl_elem_value *ucontrol)
275 {
276 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
277 	struct pmac_tumbler *mix = chip->mixer_data;
278 	int change;
279 
280 	snd_assert(mix, return -ENODEV);
281 	change = mix->master_vol[0] != ucontrol->value.integer.value[0] ||
282 		mix->master_vol[1] != ucontrol->value.integer.value[1];
283 	if (change) {
284 		mix->master_vol[0] = ucontrol->value.integer.value[0];
285 		mix->master_vol[1] = ucontrol->value.integer.value[1];
286 		tumbler_set_master_volume(mix);
287 	}
288 	return change;
289 }
290 
291 /* output switch */
292 static int tumbler_get_master_switch(struct snd_kcontrol *kcontrol,
293 				     struct snd_ctl_elem_value *ucontrol)
294 {
295 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
296 	struct pmac_tumbler *mix = chip->mixer_data;
297 	snd_assert(mix, return -ENODEV);
298 	ucontrol->value.integer.value[0] = mix->master_switch[0];
299 	ucontrol->value.integer.value[1] = mix->master_switch[1];
300 	return 0;
301 }
302 
303 static int tumbler_put_master_switch(struct snd_kcontrol *kcontrol,
304 				     struct snd_ctl_elem_value *ucontrol)
305 {
306 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
307 	struct pmac_tumbler *mix = chip->mixer_data;
308 	int change;
309 
310 	snd_assert(mix, return -ENODEV);
311 	change = mix->master_switch[0] != ucontrol->value.integer.value[0] ||
312 		mix->master_switch[1] != ucontrol->value.integer.value[1];
313 	if (change) {
314 		mix->master_switch[0] = !!ucontrol->value.integer.value[0];
315 		mix->master_switch[1] = !!ucontrol->value.integer.value[1];
316 		tumbler_set_master_volume(mix);
317 	}
318 	return change;
319 }
320 
321 
322 /*
323  * TAS3001c dynamic range compression
324  */
325 
326 #define TAS3001_DRC_MAX		0x5f
327 
328 static int tumbler_set_drc(struct pmac_tumbler *mix)
329 {
330 	unsigned char val[2];
331 
332 	if (! mix->i2c.client)
333 		return -ENODEV;
334 
335 	if (mix->drc_enable) {
336 		val[0] = 0xc1; /* enable, 3:1 compression */
337 		if (mix->drc_range > TAS3001_DRC_MAX)
338 			val[1] = 0xf0;
339 		else if (mix->drc_range < 0)
340 			val[1] = 0x91;
341 		else
342 			val[1] = mix->drc_range + 0x91;
343 	} else {
344 		val[0] = 0;
345 		val[1] = 0;
346 	}
347 
348 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
349 					   2, val) < 0) {
350 		snd_printk("failed to set DRC\n");
351 		return -EINVAL;
352 	}
353 	return 0;
354 }
355 
356 /*
357  * TAS3004
358  */
359 
360 #define TAS3004_DRC_MAX		0xef
361 
362 static int snapper_set_drc(struct pmac_tumbler *mix)
363 {
364 	unsigned char val[6];
365 
366 	if (! mix->i2c.client)
367 		return -ENODEV;
368 
369 	if (mix->drc_enable)
370 		val[0] = 0x50; /* 3:1 above threshold */
371 	else
372 		val[0] = 0x51; /* disabled */
373 	val[1] = 0x02; /* 1:1 below threshold */
374 	if (mix->drc_range > 0xef)
375 		val[2] = 0xef;
376 	else if (mix->drc_range < 0)
377 		val[2] = 0x00;
378 	else
379 		val[2] = mix->drc_range;
380 	val[3] = 0xb0;
381 	val[4] = 0x60;
382 	val[5] = 0xa0;
383 
384 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, TAS_REG_DRC,
385 					   6, val) < 0) {
386 		snd_printk("failed to set DRC\n");
387 		return -EINVAL;
388 	}
389 	return 0;
390 }
391 
392 static int tumbler_info_drc_value(struct snd_kcontrol *kcontrol,
393 				  struct snd_ctl_elem_info *uinfo)
394 {
395 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
396 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
397 	uinfo->count = 1;
398 	uinfo->value.integer.min = 0;
399 	uinfo->value.integer.max =
400 		chip->model == PMAC_TUMBLER ? TAS3001_DRC_MAX : TAS3004_DRC_MAX;
401 	return 0;
402 }
403 
404 static int tumbler_get_drc_value(struct snd_kcontrol *kcontrol,
405 				 struct snd_ctl_elem_value *ucontrol)
406 {
407 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
408 	struct pmac_tumbler *mix;
409 	if (! (mix = chip->mixer_data))
410 		return -ENODEV;
411 	ucontrol->value.integer.value[0] = mix->drc_range;
412 	return 0;
413 }
414 
415 static int tumbler_put_drc_value(struct snd_kcontrol *kcontrol,
416 				 struct snd_ctl_elem_value *ucontrol)
417 {
418 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
419 	struct pmac_tumbler *mix;
420 	int change;
421 
422 	if (! (mix = chip->mixer_data))
423 		return -ENODEV;
424 	change = mix->drc_range != ucontrol->value.integer.value[0];
425 	if (change) {
426 		mix->drc_range = ucontrol->value.integer.value[0];
427 		if (chip->model == PMAC_TUMBLER)
428 			tumbler_set_drc(mix);
429 		else
430 			snapper_set_drc(mix);
431 	}
432 	return change;
433 }
434 
435 static int tumbler_get_drc_switch(struct snd_kcontrol *kcontrol,
436 				  struct snd_ctl_elem_value *ucontrol)
437 {
438 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
439 	struct pmac_tumbler *mix;
440 	if (! (mix = chip->mixer_data))
441 		return -ENODEV;
442 	ucontrol->value.integer.value[0] = mix->drc_enable;
443 	return 0;
444 }
445 
446 static int tumbler_put_drc_switch(struct snd_kcontrol *kcontrol,
447 				  struct snd_ctl_elem_value *ucontrol)
448 {
449 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
450 	struct pmac_tumbler *mix;
451 	int change;
452 
453 	if (! (mix = chip->mixer_data))
454 		return -ENODEV;
455 	change = mix->drc_enable != ucontrol->value.integer.value[0];
456 	if (change) {
457 		mix->drc_enable = !!ucontrol->value.integer.value[0];
458 		if (chip->model == PMAC_TUMBLER)
459 			tumbler_set_drc(mix);
460 		else
461 			snapper_set_drc(mix);
462 	}
463 	return change;
464 }
465 
466 
467 /*
468  * mono volumes
469  */
470 
471 struct tumbler_mono_vol {
472 	int index;
473 	int reg;
474 	int bytes;
475 	unsigned int max;
476 	unsigned int *table;
477 };
478 
479 static int tumbler_set_mono_volume(struct pmac_tumbler *mix,
480 				   struct tumbler_mono_vol *info)
481 {
482 	unsigned char block[4];
483 	unsigned int vol;
484 	int i;
485 
486 	if (! mix->i2c.client)
487 		return -ENODEV;
488 
489 	vol = mix->mono_vol[info->index];
490 	if (vol >= info->max)
491 		vol = info->max - 1;
492 	vol = info->table[vol];
493 	for (i = 0; i < info->bytes; i++)
494 		block[i] = (vol >> ((info->bytes - i - 1) * 8)) & 0xff;
495 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, info->reg,
496 					   info->bytes, block) < 0) {
497 		snd_printk("failed to set mono volume %d\n", info->index);
498 		return -EINVAL;
499 	}
500 	return 0;
501 }
502 
503 static int tumbler_info_mono(struct snd_kcontrol *kcontrol,
504 			     struct snd_ctl_elem_info *uinfo)
505 {
506 	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
507 
508 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
509 	uinfo->count = 1;
510 	uinfo->value.integer.min = 0;
511 	uinfo->value.integer.max = info->max - 1;
512 	return 0;
513 }
514 
515 static int tumbler_get_mono(struct snd_kcontrol *kcontrol,
516 			    struct snd_ctl_elem_value *ucontrol)
517 {
518 	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
519 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
520 	struct pmac_tumbler *mix;
521 	if (! (mix = chip->mixer_data))
522 		return -ENODEV;
523 	ucontrol->value.integer.value[0] = mix->mono_vol[info->index];
524 	return 0;
525 }
526 
527 static int tumbler_put_mono(struct snd_kcontrol *kcontrol,
528 			    struct snd_ctl_elem_value *ucontrol)
529 {
530 	struct tumbler_mono_vol *info = (struct tumbler_mono_vol *)kcontrol->private_value;
531 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
532 	struct pmac_tumbler *mix;
533 	int change;
534 
535 	if (! (mix = chip->mixer_data))
536 		return -ENODEV;
537 	change = mix->mono_vol[info->index] != ucontrol->value.integer.value[0];
538 	if (change) {
539 		mix->mono_vol[info->index] = ucontrol->value.integer.value[0];
540 		tumbler_set_mono_volume(mix, info);
541 	}
542 	return change;
543 }
544 
545 /* TAS3001c mono volumes */
546 static struct tumbler_mono_vol tumbler_pcm_vol_info = {
547 	.index = VOL_IDX_PCM_MONO,
548 	.reg = TAS_REG_PCM,
549 	.bytes = 3,
550 	.max = ARRAY_SIZE(mixer_volume_table),
551 	.table = mixer_volume_table,
552 };
553 
554 static struct tumbler_mono_vol tumbler_bass_vol_info = {
555 	.index = VOL_IDX_BASS,
556 	.reg = TAS_REG_BASS,
557 	.bytes = 1,
558 	.max = ARRAY_SIZE(bass_volume_table),
559 	.table = bass_volume_table,
560 };
561 
562 static struct tumbler_mono_vol tumbler_treble_vol_info = {
563 	.index = VOL_IDX_TREBLE,
564 	.reg = TAS_REG_TREBLE,
565 	.bytes = 1,
566 	.max = ARRAY_SIZE(treble_volume_table),
567 	.table = treble_volume_table,
568 };
569 
570 /* TAS3004 mono volumes */
571 static struct tumbler_mono_vol snapper_bass_vol_info = {
572 	.index = VOL_IDX_BASS,
573 	.reg = TAS_REG_BASS,
574 	.bytes = 1,
575 	.max = ARRAY_SIZE(snapper_bass_volume_table),
576 	.table = snapper_bass_volume_table,
577 };
578 
579 static struct tumbler_mono_vol snapper_treble_vol_info = {
580 	.index = VOL_IDX_TREBLE,
581 	.reg = TAS_REG_TREBLE,
582 	.bytes = 1,
583 	.max = ARRAY_SIZE(snapper_treble_volume_table),
584 	.table = snapper_treble_volume_table,
585 };
586 
587 
588 #define DEFINE_MONO(xname,type) { \
589 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
590 	.name = xname, \
591 	.info = tumbler_info_mono, \
592 	.get = tumbler_get_mono, \
593 	.put = tumbler_put_mono, \
594 	.private_value = (unsigned long)(&tumbler_##type##_vol_info), \
595 }
596 
597 #define DEFINE_SNAPPER_MONO(xname,type) { \
598 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
599 	.name = xname, \
600 	.info = tumbler_info_mono, \
601 	.get = tumbler_get_mono, \
602 	.put = tumbler_put_mono, \
603 	.private_value = (unsigned long)(&snapper_##type##_vol_info), \
604 }
605 
606 
607 /*
608  * snapper mixer volumes
609  */
610 
611 static int snapper_set_mix_vol1(struct pmac_tumbler *mix, int idx, int ch, int reg)
612 {
613 	int i, j, vol;
614 	unsigned char block[9];
615 
616 	vol = mix->mix_vol[idx][ch];
617 	if (vol >= ARRAY_SIZE(mixer_volume_table)) {
618 		vol = ARRAY_SIZE(mixer_volume_table) - 1;
619 		mix->mix_vol[idx][ch] = vol;
620 	}
621 
622 	for (i = 0; i < 3; i++) {
623 		vol = mix->mix_vol[i][ch];
624 		vol = mixer_volume_table[vol];
625 		for (j = 0; j < 3; j++)
626 			block[i * 3 + j] = (vol >> ((2 - j) * 8)) & 0xff;
627 	}
628 	if (i2c_smbus_write_i2c_block_data(mix->i2c.client, reg,
629 					   9, block) < 0) {
630 		snd_printk("failed to set mono volume %d\n", reg);
631 		return -EINVAL;
632 	}
633 	return 0;
634 }
635 
636 static int snapper_set_mix_vol(struct pmac_tumbler *mix, int idx)
637 {
638 	if (! mix->i2c.client)
639 		return -ENODEV;
640 	if (snapper_set_mix_vol1(mix, idx, 0, TAS_REG_LMIX) < 0 ||
641 	    snapper_set_mix_vol1(mix, idx, 1, TAS_REG_RMIX) < 0)
642 		return -EINVAL;
643 	return 0;
644 }
645 
646 static int snapper_info_mix(struct snd_kcontrol *kcontrol,
647 			    struct snd_ctl_elem_info *uinfo)
648 {
649 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
650 	uinfo->count = 2;
651 	uinfo->value.integer.min = 0;
652 	uinfo->value.integer.max = ARRAY_SIZE(mixer_volume_table) - 1;
653 	return 0;
654 }
655 
656 static int snapper_get_mix(struct snd_kcontrol *kcontrol,
657 			   struct snd_ctl_elem_value *ucontrol)
658 {
659 	int idx = (int)kcontrol->private_value;
660 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
661 	struct pmac_tumbler *mix;
662 	if (! (mix = chip->mixer_data))
663 		return -ENODEV;
664 	ucontrol->value.integer.value[0] = mix->mix_vol[idx][0];
665 	ucontrol->value.integer.value[1] = mix->mix_vol[idx][1];
666 	return 0;
667 }
668 
669 static int snapper_put_mix(struct snd_kcontrol *kcontrol,
670 			   struct snd_ctl_elem_value *ucontrol)
671 {
672 	int idx = (int)kcontrol->private_value;
673 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
674 	struct pmac_tumbler *mix;
675 	int change;
676 
677 	if (! (mix = chip->mixer_data))
678 		return -ENODEV;
679 	change = mix->mix_vol[idx][0] != ucontrol->value.integer.value[0] ||
680 		mix->mix_vol[idx][1] != ucontrol->value.integer.value[1];
681 	if (change) {
682 		mix->mix_vol[idx][0] = ucontrol->value.integer.value[0];
683 		mix->mix_vol[idx][1] = ucontrol->value.integer.value[1];
684 		snapper_set_mix_vol(mix, idx);
685 	}
686 	return change;
687 }
688 
689 
690 /*
691  * mute switches. FIXME: Turn that into software mute when both outputs are muted
692  * to avoid codec reset on ibook M7
693  */
694 
695 enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
696 
697 static int tumbler_get_mute_switch(struct snd_kcontrol *kcontrol,
698 				   struct snd_ctl_elem_value *ucontrol)
699 {
700 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
701 	struct pmac_tumbler *mix;
702 	struct pmac_gpio *gp;
703 	if (! (mix = chip->mixer_data))
704 		return -ENODEV;
705 	switch(kcontrol->private_value) {
706 	case TUMBLER_MUTE_HP:
707 		gp = &mix->hp_mute;	break;
708 	case TUMBLER_MUTE_AMP:
709 		gp = &mix->amp_mute;	break;
710 	case TUMBLER_MUTE_LINE:
711 		gp = &mix->line_mute;	break;
712 	default:
713 		gp = NULL;
714 	}
715 	if (gp == NULL)
716 		return -EINVAL;
717 	ucontrol->value.integer.value[0] = !check_audio_gpio(gp);
718 	return 0;
719 }
720 
721 static int tumbler_put_mute_switch(struct snd_kcontrol *kcontrol,
722 				   struct snd_ctl_elem_value *ucontrol)
723 {
724 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
725 	struct pmac_tumbler *mix;
726 	struct pmac_gpio *gp;
727 	int val;
728 #ifdef PMAC_SUPPORT_AUTOMUTE
729 	if (chip->update_automute && chip->auto_mute)
730 		return 0; /* don't touch in the auto-mute mode */
731 #endif
732 	if (! (mix = chip->mixer_data))
733 		return -ENODEV;
734 	switch(kcontrol->private_value) {
735 	case TUMBLER_MUTE_HP:
736 		gp = &mix->hp_mute;	break;
737 	case TUMBLER_MUTE_AMP:
738 		gp = &mix->amp_mute;	break;
739 	case TUMBLER_MUTE_LINE:
740 		gp = &mix->line_mute;	break;
741 	default:
742 		gp = NULL;
743 	}
744 	if (gp == NULL)
745 		return -EINVAL;
746 	val = ! check_audio_gpio(gp);
747 	if (val != ucontrol->value.integer.value[0]) {
748 		write_audio_gpio(gp, ! ucontrol->value.integer.value[0]);
749 		return 1;
750 	}
751 	return 0;
752 }
753 
754 static int snapper_set_capture_source(struct pmac_tumbler *mix)
755 {
756 	if (! mix->i2c.client)
757 		return -ENODEV;
758 	if (mix->capture_source)
759 		mix->acs = mix->acs |= 2;
760 	else
761 		mix->acs &= ~2;
762 	return i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
763 }
764 
765 static int snapper_info_capture_source(struct snd_kcontrol *kcontrol,
766 				       struct snd_ctl_elem_info *uinfo)
767 {
768 	static char *texts[2] = {
769 		"Line", "Mic"
770 	};
771 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
772 	uinfo->count = 1;
773 	uinfo->value.enumerated.items = 2;
774 	if (uinfo->value.enumerated.item > 1)
775 		uinfo->value.enumerated.item = 1;
776 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
777 	return 0;
778 }
779 
780 static int snapper_get_capture_source(struct snd_kcontrol *kcontrol,
781 				      struct snd_ctl_elem_value *ucontrol)
782 {
783 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
784 	struct pmac_tumbler *mix = chip->mixer_data;
785 
786 	snd_assert(mix, return -ENODEV);
787 	ucontrol->value.integer.value[0] = mix->capture_source;
788 	return 0;
789 }
790 
791 static int snapper_put_capture_source(struct snd_kcontrol *kcontrol,
792 				      struct snd_ctl_elem_value *ucontrol)
793 {
794 	struct snd_pmac *chip = snd_kcontrol_chip(kcontrol);
795 	struct pmac_tumbler *mix = chip->mixer_data;
796 	int change;
797 
798 	snd_assert(mix, return -ENODEV);
799 	change = ucontrol->value.integer.value[0] != mix->capture_source;
800 	if (change) {
801 		mix->capture_source = !!ucontrol->value.integer.value[0];
802 		snapper_set_capture_source(mix);
803 	}
804 	return change;
805 }
806 
807 #define DEFINE_SNAPPER_MIX(xname,idx,ofs) { \
808 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,\
809 	.name = xname, \
810 	.info = snapper_info_mix, \
811 	.get = snapper_get_mix, \
812 	.put = snapper_put_mix, \
813 	.index = idx,\
814 	.private_value = ofs, \
815 }
816 
817 
818 /*
819  */
820 static struct snd_kcontrol_new tumbler_mixers[] __initdata = {
821 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
822 	  .name = "Master Playback Volume",
823 	  .info = tumbler_info_master_volume,
824 	  .get = tumbler_get_master_volume,
825 	  .put = tumbler_put_master_volume
826 	},
827 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
828 	  .name = "Master Playback Switch",
829 	  .info = snd_pmac_boolean_stereo_info,
830 	  .get = tumbler_get_master_switch,
831 	  .put = tumbler_put_master_switch
832 	},
833 	DEFINE_MONO("Tone Control - Bass", bass),
834 	DEFINE_MONO("Tone Control - Treble", treble),
835 	DEFINE_MONO("PCM Playback Volume", pcm),
836 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
837 	  .name = "DRC Range",
838 	  .info = tumbler_info_drc_value,
839 	  .get = tumbler_get_drc_value,
840 	  .put = tumbler_put_drc_value
841 	},
842 };
843 
844 static struct snd_kcontrol_new snapper_mixers[] __initdata = {
845 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
846 	  .name = "Master Playback Volume",
847 	  .info = tumbler_info_master_volume,
848 	  .get = tumbler_get_master_volume,
849 	  .put = tumbler_put_master_volume
850 	},
851 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
852 	  .name = "Master Playback Switch",
853 	  .info = snd_pmac_boolean_stereo_info,
854 	  .get = tumbler_get_master_switch,
855 	  .put = tumbler_put_master_switch
856 	},
857 	DEFINE_SNAPPER_MIX("PCM Playback Volume", 0, VOL_IDX_PCM),
858 	DEFINE_SNAPPER_MIX("PCM Playback Volume", 1, VOL_IDX_PCM2),
859 	DEFINE_SNAPPER_MIX("Monitor Mix Volume", 0, VOL_IDX_ADC),
860 	DEFINE_SNAPPER_MONO("Tone Control - Bass", bass),
861 	DEFINE_SNAPPER_MONO("Tone Control - Treble", treble),
862 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
863 	  .name = "DRC Range",
864 	  .info = tumbler_info_drc_value,
865 	  .get = tumbler_get_drc_value,
866 	  .put = tumbler_put_drc_value
867 	},
868 	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
869 	  .name = "Input Source", /* FIXME: "Capture Source" doesn't work properly */
870 	  .info = snapper_info_capture_source,
871 	  .get = snapper_get_capture_source,
872 	  .put = snapper_put_capture_source
873 	},
874 };
875 
876 static struct snd_kcontrol_new tumbler_hp_sw __initdata = {
877 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
878 	.name = "Headphone Playback Switch",
879 	.info = snd_pmac_boolean_mono_info,
880 	.get = tumbler_get_mute_switch,
881 	.put = tumbler_put_mute_switch,
882 	.private_value = TUMBLER_MUTE_HP,
883 };
884 static struct snd_kcontrol_new tumbler_speaker_sw __initdata = {
885 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
886 	.name = "PC Speaker Playback Switch",
887 	.info = snd_pmac_boolean_mono_info,
888 	.get = tumbler_get_mute_switch,
889 	.put = tumbler_put_mute_switch,
890 	.private_value = TUMBLER_MUTE_AMP,
891 };
892 static struct snd_kcontrol_new tumbler_lineout_sw __initdata = {
893 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
894 	.name = "Line Out Playback Switch",
895 	.info = snd_pmac_boolean_mono_info,
896 	.get = tumbler_get_mute_switch,
897 	.put = tumbler_put_mute_switch,
898 	.private_value = TUMBLER_MUTE_LINE,
899 };
900 static struct snd_kcontrol_new tumbler_drc_sw __initdata = {
901 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
902 	.name = "DRC Switch",
903 	.info = snd_pmac_boolean_mono_info,
904 	.get = tumbler_get_drc_switch,
905 	.put = tumbler_put_drc_switch
906 };
907 
908 
909 #ifdef PMAC_SUPPORT_AUTOMUTE
910 /*
911  * auto-mute stuffs
912  */
913 static int tumbler_detect_headphone(struct snd_pmac *chip)
914 {
915 	struct pmac_tumbler *mix = chip->mixer_data;
916 	int detect = 0;
917 
918 	if (mix->hp_detect.addr)
919 		detect |= read_audio_gpio(&mix->hp_detect);
920 	return detect;
921 }
922 
923 static int tumbler_detect_lineout(struct snd_pmac *chip)
924 {
925 	struct pmac_tumbler *mix = chip->mixer_data;
926 	int detect = 0;
927 
928 	if (mix->line_detect.addr)
929 		detect |= read_audio_gpio(&mix->line_detect);
930 	return detect;
931 }
932 
933 static void check_mute(struct snd_pmac *chip, struct pmac_gpio *gp, int val, int do_notify,
934 		       struct snd_kcontrol *sw)
935 {
936 	if (check_audio_gpio(gp) != val) {
937 		write_audio_gpio(gp, val);
938 		if (do_notify)
939 			snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
940 				       &sw->id);
941 	}
942 }
943 
944 static struct work_struct device_change;
945 static struct snd_pmac *device_change_chip;
946 
947 static void device_change_handler(struct work_struct *work)
948 {
949 	struct snd_pmac *chip = device_change_chip;
950 	struct pmac_tumbler *mix;
951 	int headphone, lineout;
952 
953 	if (!chip)
954 		return;
955 
956 	mix = chip->mixer_data;
957 	snd_assert(mix, return);
958 
959 	headphone = tumbler_detect_headphone(chip);
960 	lineout = tumbler_detect_lineout(chip);
961 
962 	DBG("headphone: %d, lineout: %d\n", headphone, lineout);
963 
964 	if (headphone || lineout) {
965 		/* unmute headphone/lineout & mute speaker */
966 		if (headphone)
967 			check_mute(chip, &mix->hp_mute, 0, mix->auto_mute_notify,
968 				   chip->master_sw_ctl);
969 		if (lineout && mix->line_mute.addr != 0)
970 			check_mute(chip, &mix->line_mute, 0, mix->auto_mute_notify,
971 				   chip->lineout_sw_ctl);
972 		if (mix->anded_reset)
973 			msleep(10);
974 		check_mute(chip, &mix->amp_mute, 1, mix->auto_mute_notify,
975 			   chip->speaker_sw_ctl);
976 	} else {
977 		/* unmute speaker, mute others */
978 		check_mute(chip, &mix->amp_mute, 0, mix->auto_mute_notify,
979 			   chip->speaker_sw_ctl);
980 		if (mix->anded_reset)
981 			msleep(10);
982 		check_mute(chip, &mix->hp_mute, 1, mix->auto_mute_notify,
983 			   chip->master_sw_ctl);
984 		if (mix->line_mute.addr != 0)
985 			check_mute(chip, &mix->line_mute, 1, mix->auto_mute_notify,
986 				   chip->lineout_sw_ctl);
987 	}
988 	if (mix->auto_mute_notify)
989 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
990 				       &chip->hp_detect_ctl->id);
991 
992 #ifdef CONFIG_SND_POWERMAC_AUTO_DRC
993 	mix->drc_enable = ! (headphone || lineout);
994 	if (mix->auto_mute_notify)
995 		snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
996 			       &chip->drc_sw_ctl->id);
997 	if (chip->model == PMAC_TUMBLER)
998 		tumbler_set_drc(mix);
999 	else
1000 		snapper_set_drc(mix);
1001 #endif
1002 
1003 	/* reset the master volume so the correct amplification is applied */
1004 	tumbler_set_master_volume(mix);
1005 }
1006 
1007 static void tumbler_update_automute(struct snd_pmac *chip, int do_notify)
1008 {
1009 	if (chip->auto_mute) {
1010 		struct pmac_tumbler *mix;
1011 		mix = chip->mixer_data;
1012 		snd_assert(mix, return);
1013 		mix->auto_mute_notify = do_notify;
1014 		schedule_work(&device_change);
1015 	}
1016 }
1017 #endif /* PMAC_SUPPORT_AUTOMUTE */
1018 
1019 
1020 /* interrupt - headphone plug changed */
1021 static irqreturn_t headphone_intr(int irq, void *devid)
1022 {
1023 	struct snd_pmac *chip = devid;
1024 	if (chip->update_automute && chip->initialized) {
1025 		chip->update_automute(chip, 1);
1026 		return IRQ_HANDLED;
1027 	}
1028 	return IRQ_NONE;
1029 }
1030 
1031 /* look for audio-gpio device */
1032 static struct device_node *find_audio_device(const char *name)
1033 {
1034 	struct device_node *gpiop;
1035 	struct device_node *np;
1036 
1037 	gpiop = of_find_node_by_name(NULL, "gpio");
1038 	if (! gpiop)
1039 		return NULL;
1040 
1041 	for (np = of_get_next_child(gpiop, NULL); np;
1042 			np = of_get_next_child(gpiop, np)) {
1043 		const char *property = of_get_property(np, "audio-gpio", NULL);
1044 		if (property && strcmp(property, name) == 0)
1045 			break;
1046 	}
1047 	of_node_put(gpiop);
1048 	return np;
1049 }
1050 
1051 /* look for audio-gpio device */
1052 static struct device_node *find_compatible_audio_device(const char *name)
1053 {
1054 	struct device_node *gpiop;
1055 	struct device_node *np;
1056 
1057 	gpiop = of_find_node_by_name(NULL, "gpio");
1058 	if (!gpiop)
1059 		return NULL;
1060 
1061 	for (np = of_get_next_child(gpiop, NULL); np;
1062 			np = of_get_next_child(gpiop, np)) {
1063 		if (of_device_is_compatible(np, name))
1064 			break;
1065 	}
1066 	of_node_put(gpiop);
1067 	return np;
1068 }
1069 
1070 /* find an audio device and get its address */
1071 static long tumbler_find_device(const char *device, const char *platform,
1072 				struct pmac_gpio *gp, int is_compatible)
1073 {
1074 	struct device_node *node;
1075 	const u32 *base;
1076 	u32 addr;
1077 	long ret;
1078 
1079 	if (is_compatible)
1080 		node = find_compatible_audio_device(device);
1081 	else
1082 		node = find_audio_device(device);
1083 	if (! node) {
1084 		DBG("(W) cannot find audio device %s !\n", device);
1085 		snd_printdd("cannot find device %s\n", device);
1086 		return -ENODEV;
1087 	}
1088 
1089 	base = of_get_property(node, "AAPL,address", NULL);
1090 	if (! base) {
1091 		base = of_get_property(node, "reg", NULL);
1092 		if (!base) {
1093 			DBG("(E) cannot find address for device %s !\n", device);
1094 			snd_printd("cannot find address for device %s\n", device);
1095 			of_node_put(node);
1096 			return -ENODEV;
1097 		}
1098 		addr = *base;
1099 		if (addr < 0x50)
1100 			addr += 0x50;
1101 	} else
1102 		addr = *base;
1103 
1104 	gp->addr = addr & 0x0000ffff;
1105 	/* Try to find the active state, default to 0 ! */
1106 	base = of_get_property(node, "audio-gpio-active-state", NULL);
1107 	if (base) {
1108 		gp->active_state = *base;
1109 		gp->active_val = (*base) ? 0x5 : 0x4;
1110 		gp->inactive_val = (*base) ? 0x4 : 0x5;
1111 	} else {
1112 		const u32 *prop = NULL;
1113 		gp->active_state = 0;
1114 		gp->active_val = 0x4;
1115 		gp->inactive_val = 0x5;
1116 		/* Here are some crude hacks to extract the GPIO polarity and
1117 		 * open collector informations out of the do-platform script
1118 		 * as we don't yet have an interpreter for these things
1119 		 */
1120 		if (platform)
1121 			prop = of_get_property(node, platform, NULL);
1122 		if (prop) {
1123 			if (prop[3] == 0x9 && prop[4] == 0x9) {
1124 				gp->active_val = 0xd;
1125 				gp->inactive_val = 0xc;
1126 			}
1127 			if (prop[3] == 0x1 && prop[4] == 0x1) {
1128 				gp->active_val = 0x5;
1129 				gp->inactive_val = 0x4;
1130 			}
1131 		}
1132 	}
1133 
1134 	DBG("(I) GPIO device %s found, offset: %x, active state: %d !\n",
1135 	    device, gp->addr, gp->active_state);
1136 
1137 	ret = irq_of_parse_and_map(node, 0);
1138 	of_node_put(node);
1139 	return ret;
1140 }
1141 
1142 /* reset audio */
1143 static void tumbler_reset_audio(struct snd_pmac *chip)
1144 {
1145 	struct pmac_tumbler *mix = chip->mixer_data;
1146 
1147 	if (mix->anded_reset) {
1148 		DBG("(I) codec anded reset !\n");
1149 		write_audio_gpio(&mix->hp_mute, 0);
1150 		write_audio_gpio(&mix->amp_mute, 0);
1151 		msleep(200);
1152 		write_audio_gpio(&mix->hp_mute, 1);
1153 		write_audio_gpio(&mix->amp_mute, 1);
1154 		msleep(100);
1155 		write_audio_gpio(&mix->hp_mute, 0);
1156 		write_audio_gpio(&mix->amp_mute, 0);
1157 		msleep(100);
1158 	} else {
1159 		DBG("(I) codec normal reset !\n");
1160 
1161 		write_audio_gpio(&mix->audio_reset, 0);
1162 		msleep(200);
1163 		write_audio_gpio(&mix->audio_reset, 1);
1164 		msleep(100);
1165 		write_audio_gpio(&mix->audio_reset, 0);
1166 		msleep(100);
1167 	}
1168 }
1169 
1170 #ifdef CONFIG_PM
1171 /* suspend mixer */
1172 static void tumbler_suspend(struct snd_pmac *chip)
1173 {
1174 	struct pmac_tumbler *mix = chip->mixer_data;
1175 
1176 	if (mix->headphone_irq >= 0)
1177 		disable_irq(mix->headphone_irq);
1178 	if (mix->lineout_irq >= 0)
1179 		disable_irq(mix->lineout_irq);
1180 	mix->save_master_switch[0] = mix->master_switch[0];
1181 	mix->save_master_switch[1] = mix->master_switch[1];
1182 	mix->save_master_vol[0] = mix->master_vol[0];
1183 	mix->save_master_vol[1] = mix->master_vol[1];
1184 	mix->master_switch[0] = mix->master_switch[1] = 0;
1185 	tumbler_set_master_volume(mix);
1186 	if (!mix->anded_reset) {
1187 		write_audio_gpio(&mix->amp_mute, 1);
1188 		write_audio_gpio(&mix->hp_mute, 1);
1189 	}
1190 	if (chip->model == PMAC_SNAPPER) {
1191 		mix->acs |= 1;
1192 		i2c_smbus_write_byte_data(mix->i2c.client, TAS_REG_ACS, mix->acs);
1193 	}
1194 	if (mix->anded_reset) {
1195 		write_audio_gpio(&mix->amp_mute, 1);
1196 		write_audio_gpio(&mix->hp_mute, 1);
1197 	} else
1198 		write_audio_gpio(&mix->audio_reset, 1);
1199 }
1200 
1201 /* resume mixer */
1202 static void tumbler_resume(struct snd_pmac *chip)
1203 {
1204 	struct pmac_tumbler *mix = chip->mixer_data;
1205 
1206 	snd_assert(mix, return);
1207 
1208 	mix->acs &= ~1;
1209 	mix->master_switch[0] = mix->save_master_switch[0];
1210 	mix->master_switch[1] = mix->save_master_switch[1];
1211 	mix->master_vol[0] = mix->save_master_vol[0];
1212 	mix->master_vol[1] = mix->save_master_vol[1];
1213 	tumbler_reset_audio(chip);
1214 	if (mix->i2c.client && mix->i2c.init_client) {
1215 		if (mix->i2c.init_client(&mix->i2c) < 0)
1216 			printk(KERN_ERR "tumbler_init_client error\n");
1217 	} else
1218 		printk(KERN_ERR "tumbler: i2c is not initialized\n");
1219 	if (chip->model == PMAC_TUMBLER) {
1220 		tumbler_set_mono_volume(mix, &tumbler_pcm_vol_info);
1221 		tumbler_set_mono_volume(mix, &tumbler_bass_vol_info);
1222 		tumbler_set_mono_volume(mix, &tumbler_treble_vol_info);
1223 		tumbler_set_drc(mix);
1224 	} else {
1225 		snapper_set_mix_vol(mix, VOL_IDX_PCM);
1226 		snapper_set_mix_vol(mix, VOL_IDX_PCM2);
1227 		snapper_set_mix_vol(mix, VOL_IDX_ADC);
1228 		tumbler_set_mono_volume(mix, &snapper_bass_vol_info);
1229 		tumbler_set_mono_volume(mix, &snapper_treble_vol_info);
1230 		snapper_set_drc(mix);
1231 		snapper_set_capture_source(mix);
1232 	}
1233 	tumbler_set_master_volume(mix);
1234 	if (chip->update_automute)
1235 		chip->update_automute(chip, 0);
1236 	if (mix->headphone_irq >= 0) {
1237 		unsigned char val;
1238 
1239 		enable_irq(mix->headphone_irq);
1240 		/* activate headphone status interrupts */
1241 		val = do_gpio_read(&mix->hp_detect);
1242 		do_gpio_write(&mix->hp_detect, val | 0x80);
1243 	}
1244 	if (mix->lineout_irq >= 0)
1245 		enable_irq(mix->lineout_irq);
1246 }
1247 #endif
1248 
1249 /* initialize tumbler */
1250 static int __init tumbler_init(struct snd_pmac *chip)
1251 {
1252 	int irq;
1253 	struct pmac_tumbler *mix = chip->mixer_data;
1254 	snd_assert(mix, return -EINVAL);
1255 
1256 	if (tumbler_find_device("audio-hw-reset",
1257 				"platform-do-hw-reset",
1258 				&mix->audio_reset, 0) < 0)
1259 		tumbler_find_device("hw-reset",
1260 				    "platform-do-hw-reset",
1261 				    &mix->audio_reset, 1);
1262 	if (tumbler_find_device("amp-mute",
1263 				"platform-do-amp-mute",
1264 				&mix->amp_mute, 0) < 0)
1265 		tumbler_find_device("amp-mute",
1266 				    "platform-do-amp-mute",
1267 				    &mix->amp_mute, 1);
1268 	if (tumbler_find_device("headphone-mute",
1269 				"platform-do-headphone-mute",
1270 				&mix->hp_mute, 0) < 0)
1271 		tumbler_find_device("headphone-mute",
1272 				    "platform-do-headphone-mute",
1273 				    &mix->hp_mute, 1);
1274 	if (tumbler_find_device("line-output-mute",
1275 				"platform-do-lineout-mute",
1276 				&mix->line_mute, 0) < 0)
1277 		tumbler_find_device("line-output-mute",
1278 				   "platform-do-lineout-mute",
1279 				    &mix->line_mute, 1);
1280 	irq = tumbler_find_device("headphone-detect",
1281 				  NULL, &mix->hp_detect, 0);
1282 	if (irq <= NO_IRQ)
1283 		irq = tumbler_find_device("headphone-detect",
1284 					  NULL, &mix->hp_detect, 1);
1285 	if (irq <= NO_IRQ)
1286 		irq = tumbler_find_device("keywest-gpio15",
1287 					  NULL, &mix->hp_detect, 1);
1288 	mix->headphone_irq = irq;
1289  	irq = tumbler_find_device("line-output-detect",
1290 				  NULL, &mix->line_detect, 0);
1291  	if (irq <= NO_IRQ)
1292 		irq = tumbler_find_device("line-output-detect",
1293 					  NULL, &mix->line_detect, 1);
1294 	mix->lineout_irq = irq;
1295 
1296 	tumbler_reset_audio(chip);
1297 
1298 	return 0;
1299 }
1300 
1301 static void tumbler_cleanup(struct snd_pmac *chip)
1302 {
1303 	struct pmac_tumbler *mix = chip->mixer_data;
1304 	if (! mix)
1305 		return;
1306 
1307 	if (mix->headphone_irq >= 0)
1308 		free_irq(mix->headphone_irq, chip);
1309 	if (mix->lineout_irq >= 0)
1310 		free_irq(mix->lineout_irq, chip);
1311 	tumbler_gpio_free(&mix->audio_reset);
1312 	tumbler_gpio_free(&mix->amp_mute);
1313 	tumbler_gpio_free(&mix->hp_mute);
1314 	tumbler_gpio_free(&mix->hp_detect);
1315 	snd_pmac_keywest_cleanup(&mix->i2c);
1316 	kfree(mix);
1317 	chip->mixer_data = NULL;
1318 }
1319 
1320 /* exported */
1321 int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
1322 {
1323 	int i, err;
1324 	struct pmac_tumbler *mix;
1325 	const u32 *paddr;
1326 	struct device_node *tas_node, *np;
1327 	char *chipname;
1328 
1329 #ifdef CONFIG_KMOD
1330 	if (current->fs->root)
1331 		request_module("i2c-powermac");
1332 #endif /* CONFIG_KMOD */
1333 
1334 	mix = kzalloc(sizeof(*mix), GFP_KERNEL);
1335 	if (! mix)
1336 		return -ENOMEM;
1337 	mix->headphone_irq = -1;
1338 
1339 	chip->mixer_data = mix;
1340 	chip->mixer_free = tumbler_cleanup;
1341 	mix->anded_reset = 0;
1342 	mix->reset_on_sleep = 1;
1343 
1344 	for (np = chip->node->child; np; np = np->sibling) {
1345 		if (!strcmp(np->name, "sound")) {
1346 			if (of_get_property(np, "has-anded-reset", NULL))
1347 				mix->anded_reset = 1;
1348 			if (of_get_property(np, "layout-id", NULL))
1349 				mix->reset_on_sleep = 0;
1350 			break;
1351 		}
1352 	}
1353 	if ((err = tumbler_init(chip)) < 0)
1354 		return err;
1355 
1356 	/* set up TAS */
1357 	tas_node = of_find_node_by_name(NULL, "deq");
1358 	if (tas_node == NULL)
1359 		tas_node = of_find_node_by_name(NULL, "codec");
1360 	if (tas_node == NULL)
1361 		return -ENODEV;
1362 
1363 	paddr = of_get_property(tas_node, "i2c-address", NULL);
1364 	if (paddr == NULL)
1365 		paddr = of_get_property(tas_node, "reg", NULL);
1366 	if (paddr)
1367 		mix->i2c.addr = (*paddr) >> 1;
1368 	else
1369 		mix->i2c.addr = TAS_I2C_ADDR;
1370 	of_node_put(tas_node);
1371 
1372 	DBG("(I) TAS i2c address is: %x\n", mix->i2c.addr);
1373 
1374 	if (chip->model == PMAC_TUMBLER) {
1375 		mix->i2c.init_client = tumbler_init_client;
1376 		mix->i2c.name = "TAS3001c";
1377 		chipname = "Tumbler";
1378 	} else {
1379 		mix->i2c.init_client = snapper_init_client;
1380 		mix->i2c.name = "TAS3004";
1381 		chipname = "Snapper";
1382 	}
1383 
1384 	if ((err = snd_pmac_keywest_init(&mix->i2c)) < 0)
1385 		return err;
1386 
1387 	/*
1388 	 * build mixers
1389 	 */
1390 	sprintf(chip->card->mixername, "PowerMac %s", chipname);
1391 
1392 	if (chip->model == PMAC_TUMBLER) {
1393 		for (i = 0; i < ARRAY_SIZE(tumbler_mixers); i++) {
1394 			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&tumbler_mixers[i], chip))) < 0)
1395 				return err;
1396 		}
1397 	} else {
1398 		for (i = 0; i < ARRAY_SIZE(snapper_mixers); i++) {
1399 			if ((err = snd_ctl_add(chip->card, snd_ctl_new1(&snapper_mixers[i], chip))) < 0)
1400 				return err;
1401 		}
1402 	}
1403 	chip->master_sw_ctl = snd_ctl_new1(&tumbler_hp_sw, chip);
1404 	if ((err = snd_ctl_add(chip->card, chip->master_sw_ctl)) < 0)
1405 		return err;
1406 	chip->speaker_sw_ctl = snd_ctl_new1(&tumbler_speaker_sw, chip);
1407 	if ((err = snd_ctl_add(chip->card, chip->speaker_sw_ctl)) < 0)
1408 		return err;
1409 	if (mix->line_mute.addr != 0) {
1410 		chip->lineout_sw_ctl = snd_ctl_new1(&tumbler_lineout_sw, chip);
1411 		if ((err = snd_ctl_add(chip->card, chip->lineout_sw_ctl)) < 0)
1412 			return err;
1413 	}
1414 	chip->drc_sw_ctl = snd_ctl_new1(&tumbler_drc_sw, chip);
1415 	if ((err = snd_ctl_add(chip->card, chip->drc_sw_ctl)) < 0)
1416 		return err;
1417 
1418 	/* set initial DRC range to 60% */
1419 	if (chip->model == PMAC_TUMBLER)
1420 		mix->drc_range = (TAS3001_DRC_MAX * 6) / 10;
1421 	else
1422 		mix->drc_range = (TAS3004_DRC_MAX * 6) / 10;
1423 	mix->drc_enable = 1; /* will be changed later if AUTO_DRC is set */
1424 	if (chip->model == PMAC_TUMBLER)
1425 		tumbler_set_drc(mix);
1426 	else
1427 		snapper_set_drc(mix);
1428 
1429 #ifdef CONFIG_PM
1430 	chip->suspend = tumbler_suspend;
1431 	chip->resume = tumbler_resume;
1432 #endif
1433 
1434 	INIT_WORK(&device_change, device_change_handler);
1435 	device_change_chip = chip;
1436 
1437 #ifdef PMAC_SUPPORT_AUTOMUTE
1438 	if ((mix->headphone_irq >=0 || mix->lineout_irq >= 0)
1439 	    && (err = snd_pmac_add_automute(chip)) < 0)
1440 		return err;
1441 	chip->detect_headphone = tumbler_detect_headphone;
1442 	chip->update_automute = tumbler_update_automute;
1443 	tumbler_update_automute(chip, 0); /* update the status only */
1444 
1445 	/* activate headphone status interrupts */
1446   	if (mix->headphone_irq >= 0) {
1447 		unsigned char val;
1448 		if ((err = request_irq(mix->headphone_irq, headphone_intr, 0,
1449 				       "Sound Headphone Detection", chip)) < 0)
1450 			return 0;
1451 		/* activate headphone status interrupts */
1452 		val = do_gpio_read(&mix->hp_detect);
1453 		do_gpio_write(&mix->hp_detect, val | 0x80);
1454 	}
1455   	if (mix->lineout_irq >= 0) {
1456 		unsigned char val;
1457 		if ((err = request_irq(mix->lineout_irq, headphone_intr, 0,
1458 				       "Sound Lineout Detection", chip)) < 0)
1459 			return 0;
1460 		/* activate headphone status interrupts */
1461 		val = do_gpio_read(&mix->line_detect);
1462 		do_gpio_write(&mix->line_detect, val | 0x80);
1463 	}
1464 #endif
1465 
1466 	return 0;
1467 }
1468