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 <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 */
    71enum {
    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 */
    78enum {
    79	VOL_IDX_PCM, VOL_IDX_PCM2, VOL_IDX_ADC,
    80	VOL_IDX_LAST_MIX
    81};
    82
    83struct pmac_gpio {
    84	unsigned int addr;
    85	u8 active_val;
    86	u8 inactive_val;
    87	u8 active_state;
    88};
    89
    90struct 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
   119static 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
   139static 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
   150static 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
   174static 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
   183static 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
   195static 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 */
   208static 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 */
   251static 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
   261static 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
   272static 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 */
   297static 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
   308static 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
   333static 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
   367static 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
   397static 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
   409static 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
   420static 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
   449static 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
   460static 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
   485struct tumbler_mono_vol {
   486	int index;
   487	int reg;
   488	int bytes;
   489	unsigned int max;
   490	unsigned int *table;
   491};
   492
   493static 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
   517static 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
   529static 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
   541static 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 */
   564static 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
   572static 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
   580static 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 */
   589static 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
   597static 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
   629static 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
   654static 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
   664static 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
   674static 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
   687static 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
   719enum { TUMBLER_MUTE_HP, TUMBLER_MUTE_AMP, TUMBLER_MUTE_LINE };
   720
   721static 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
   745static 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
   778static 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
   789static 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
   804static 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
   815static 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 */
   844static 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
   868static 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
   900static 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};
   908static 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};
   916static 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};
   924static 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 */
   937static 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
   947static 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
   957static 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
   968static struct work_struct device_change;
   969static struct snd_pmac *device_change_chip;
   970
   971static 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
  1031static 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 */
  1045static 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 */
  1056static 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 */
  1076static 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 */
  1095static 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 */
  1167static 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 */
  1196static 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 */
  1226static 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 */
  1274static 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
  1325static 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 */
  1345int __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}