[deliverable/linux.git] / sound / soc / pxa / spitz.c

/*
 * spitz.c  --  SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
 *
 * Copyright 2005 Wolfson Microelectronics PLC.
 * Copyright 2005 Openedhand Ltd.
 *
 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
 *          Richard Purdie <richard@openedhand.com>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>

#include <asm/mach-types.h>
#include <mach/spitz.h>
#include "../codecs/wm8750.h"
#include "pxa2xx-i2s.h"

#define SPITZ_HP        0
#define SPITZ_MIC       1
#define SPITZ_LINE      2
#define SPITZ_HEADSET   3
#define SPITZ_HP_OFF    4
#define SPITZ_SPK_ON    0
#define SPITZ_SPK_OFF   1

 /* audio clock in Hz - rounded from 12.235MHz */
#define SPITZ_AUDIO_CLOCK 12288000

static int spitz_jack_func;
static int spitz_spk_func;
static int spitz_mic_gpio;

static void spitz_ext_control(struct snd_soc_codec *codec)
{
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	if (spitz_spk_func == SPITZ_SPK_ON)
		snd_soc_dapm_enable_pin(dapm, "Ext Spk");
	else
		snd_soc_dapm_disable_pin(dapm, "Ext Spk");

	/* set up jack connection */
	switch (spitz_jack_func) {
	case SPITZ_HP:
		/* enable and unmute hp jack, disable mic bias */
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		snd_soc_dapm_disable_pin(dapm, "Mic Jack");
		snd_soc_dapm_disable_pin(dapm, "Line Jack");
		snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
		gpio_set_value(SPITZ_GPIO_MUTE_L, 1);
		gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
		break;
	case SPITZ_MIC:
		/* enable mic jack and bias, mute hp */
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		snd_soc_dapm_disable_pin(dapm, "Line Jack");
		snd_soc_dapm_enable_pin(dapm, "Mic Jack");
		gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
		gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
		break;
	case SPITZ_LINE:
		/* enable line jack, disable mic bias and mute hp */
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		snd_soc_dapm_disable_pin(dapm, "Mic Jack");
		snd_soc_dapm_enable_pin(dapm, "Line Jack");
		gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
		gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
		break;
	case SPITZ_HEADSET:
		/* enable and unmute headset jack enable mic bias, mute L hp */
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_enable_pin(dapm, "Mic Jack");
		snd_soc_dapm_disable_pin(dapm, "Line Jack");
		snd_soc_dapm_enable_pin(dapm, "Headset Jack");
		gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
		gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
		break;
	case SPITZ_HP_OFF:

		/* jack removed, everything off */
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		snd_soc_dapm_disable_pin(dapm, "Mic Jack");
		snd_soc_dapm_disable_pin(dapm, "Line Jack");
		gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
		gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
		break;
	}
	snd_soc_dapm_sync(dapm);
}

static int spitz_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->codec;

	mutex_lock(&codec->mutex);

	/* check the jack status at stream startup */
	spitz_ext_control(codec);

	mutex_unlock(&codec->mutex);

	return 0;
}

static int spitz_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	unsigned int clk = 0;
	int ret = 0;

	switch (params_rate(params)) {
	case 8000:
	case 16000:
	case 48000:
	case 96000:
		clk = 12288000;
		break;
	case 11025:
	case 22050:
	case 44100:
		clk = 11289600;
		break;
	}

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
		SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
		SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
		SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	/* set the I2S system clock as input (unused) */
	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
		SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops spitz_ops = {
	.startup = spitz_startup,
	.hw_params = spitz_hw_params,
};

static int spitz_get_jack(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = spitz_jack_func;
	return 0;
}

static int spitz_set_jack(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);

	if (spitz_jack_func == ucontrol->value.integer.value[0])
		return 0;

	spitz_jack_func = ucontrol->value.integer.value[0];
	spitz_ext_control(codec);
	return 1;
}

static int spitz_get_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = spitz_spk_func;
	return 0;
}

static int spitz_set_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);

	if (spitz_spk_func == ucontrol->value.integer.value[0])
		return 0;

	spitz_spk_func = ucontrol->value.integer.value[0];
	spitz_ext_control(codec);
	return 1;
}

static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
{
	gpio_set_value_cansleep(spitz_mic_gpio, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
}

/* spitz machine dapm widgets */
static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	SND_SOC_DAPM_LINE("Line Jack", NULL),

	/* headset is a mic and mono headphone */
	SND_SOC_DAPM_HP("Headset Jack", NULL),
};

/* Spitz machine audio_map */
static const struct snd_soc_dapm_route audio_map[] = {

	/* headphone connected to LOUT1, ROUT1 */
	{"Headphone Jack", NULL, "LOUT1"},
	{"Headphone Jack", NULL, "ROUT1"},

	/* headset connected to ROUT1 and LINPUT1 with bias (def below) */
	{"Headset Jack", NULL, "ROUT1"},

	/* ext speaker connected to LOUT2, ROUT2  */
	{"Ext Spk", NULL , "ROUT2"},
	{"Ext Spk", NULL , "LOUT2"},

	/* mic is connected to input 1 - with bias */
	{"LINPUT1", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Mic Jack"},

	/* line is connected to input 1 - no bias */
	{"LINPUT1", NULL, "Line Jack"},
};

static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	"Off"};
static const char *spk_function[] = {"On", "Off"};
static const struct soc_enum spitz_enum[] = {
	SOC_ENUM_SINGLE_EXT(5, jack_function),
	SOC_ENUM_SINGLE_EXT(2, spk_function),
};

static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
	SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
		spitz_set_jack),
	SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
		spitz_set_spk),
};

/*
 * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
 */
static int spitz_wm8750_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int err;

	/* NC codec pins */
	snd_soc_dapm_nc_pin(dapm, "RINPUT1");
	snd_soc_dapm_nc_pin(dapm, "LINPUT2");
	snd_soc_dapm_nc_pin(dapm, "RINPUT2");
	snd_soc_dapm_nc_pin(dapm, "LINPUT3");
	snd_soc_dapm_nc_pin(dapm, "RINPUT3");
	snd_soc_dapm_nc_pin(dapm, "OUT3");
	snd_soc_dapm_nc_pin(dapm, "MONO1");

	/* Add spitz specific controls */
	err = snd_soc_add_controls(codec, wm8750_spitz_controls,
				ARRAY_SIZE(wm8750_spitz_controls));
	if (err < 0)
		return err;

	/* Add spitz specific widgets */
	snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets,
				  ARRAY_SIZE(wm8750_dapm_widgets));

	/* Set up spitz specific audio paths */
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	return 0;
}

/* spitz digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link spitz_dai = {
	.name = "wm8750",
	.stream_name = "WM8750",
	.cpu_dai_name = "pxa2xx-i2s",
	.codec_dai_name = "wm8750-hifi",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "wm8750.0-001b",
	.init = spitz_wm8750_init,
	.ops = &spitz_ops,
};

/* spitz audio machine driver */
static struct snd_soc_card snd_soc_spitz = {
	.name = "Spitz",
	.owner = THIS_MODULE,
	.dai_link = &spitz_dai,
	.num_links = 1,
};

static struct platform_device *spitz_snd_device;

static int __init spitz_init(void)
{
	int ret;

	if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita()))
		return -ENODEV;

	if (machine_is_borzoi() || machine_is_spitz())
		spitz_mic_gpio = SPITZ_GPIO_MIC_BIAS;
	else
		spitz_mic_gpio = AKITA_GPIO_MIC_BIAS;

	ret = gpio_request(spitz_mic_gpio, "MIC GPIO");
	if (ret)
		goto err1;

	ret = gpio_direction_output(spitz_mic_gpio, 0);
	if (ret)
		goto err2;

	spitz_snd_device = platform_device_alloc("soc-audio", -1);
	if (!spitz_snd_device) {
		ret = -ENOMEM;
		goto err2;
	}

	platform_set_drvdata(spitz_snd_device, &snd_soc_spitz);

	ret = platform_device_add(spitz_snd_device);
	if (ret)
		goto err3;

	return 0;

err3:
	platform_device_put(spitz_snd_device);
err2:
	gpio_free(spitz_mic_gpio);
err1:
	return ret;
}

static void __exit spitz_exit(void)
{
	platform_device_unregister(spitz_snd_device);
	gpio_free(spitz_mic_gpio);
}

module_init(spitz_init);
module_exit(spitz_exit);

MODULE_AUTHOR("Richard Purdie");
MODULE_DESCRIPTION("ALSA SoC Spitz");
MODULE_LICENSE("GPL");
Commit	Line	Data
7fb290d0 LG	1	/*
	2	* spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita
	3	*
	4	* Copyright 2005 Wolfson Microelectronics PLC.
	5	* Copyright 2005 Openedhand Ltd.
	6	*
d331124d	7	* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
7fb290d0 LG	8	* Richard Purdie <richard@openedhand.com>
	9	*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the
	12	* Free Software Foundation; either version 2 of the License, or (at your
	13	* option) any later version.
	14	*
7fb290d0 LG	15	*/
	16
	17	#include <linux/module.h>
	18	#include <linux/moduleparam.h>
	19	#include <linux/timer.h>
	20	#include <linux/interrupt.h>
	21	#include <linux/platform_device.h>
fff14720	22	#include <linux/gpio.h>
7fb290d0 LG	23	#include <sound/core.h>
	24	#include <sound/pcm.h>
	25	#include <sound/soc.h>
7fb290d0 LG	26
7fb290d0 LG	27	#include <asm/mach-types.h>
a09e64fb	28	#include <mach/spitz.h>
7fb290d0	29	#include "../codecs/wm8750.h"
97952f60	30	#include "pxa2xx-i2s.h"
7fb290d0 LG	31
	32	#define SPITZ_HP 0
	33	#define SPITZ_MIC 1
	34	#define SPITZ_LINE 2
	35	#define SPITZ_HEADSET 3
	36	#define SPITZ_HP_OFF 4
	37	#define SPITZ_SPK_ON 0
	38	#define SPITZ_SPK_OFF 1
	39
	40	/* audio clock in Hz - rounded from 12.235MHz */
	41	#define SPITZ_AUDIO_CLOCK 12288000
	42
	43	static int spitz_jack_func;
	44	static int spitz_spk_func;
04368d05	45	static int spitz_mic_gpio;
7fb290d0 LG	46
	47	static void spitz_ext_control(struct snd_soc_codec *codec)
	48	{
ce6120cc LG	49	struct snd_soc_dapm_context *dapm = &codec->dapm;
ce6120cc LG	50
7fb290d0	51	if (spitz_spk_func == SPITZ_SPK_ON)
ce6120cc	52	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
7fb290d0	53	else
ce6120cc	54	snd_soc_dapm_disable_pin(dapm, "Ext Spk");
7fb290d0 LG	55
	56	/* set up jack connection */
	57	switch (spitz_jack_func) {
	58	case SPITZ_HP:
	59	/* enable and unmute hp jack, disable mic bias */
ce6120cc LG	60	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
	61	snd_soc_dapm_disable_pin(dapm, "Mic Jack");
	62	snd_soc_dapm_disable_pin(dapm, "Line Jack");
	63	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
fff14720 EM	64	gpio_set_value(SPITZ_GPIO_MUTE_L, 1);
fff14720 EM	65	gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
7fb290d0 LG	66	break;
	67	case SPITZ_MIC:
	68	/* enable mic jack and bias, mute hp */
ce6120cc LG	69	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	70	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
	71	snd_soc_dapm_disable_pin(dapm, "Line Jack");
	72	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
fff14720 EM	73	gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
fff14720 EM	74	gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
7fb290d0 LG	75	break;
	76	case SPITZ_LINE:
	77	/* enable line jack, disable mic bias and mute hp */
ce6120cc LG	78	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	79	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
	80	snd_soc_dapm_disable_pin(dapm, "Mic Jack");
	81	snd_soc_dapm_enable_pin(dapm, "Line Jack");
fff14720 EM	82	gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
fff14720 EM	83	gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
7fb290d0 LG	84	break;
	85	case SPITZ_HEADSET:
	86	/* enable and unmute headset jack enable mic bias, mute L hp */
ce6120cc LG	87	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	88	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
	89	snd_soc_dapm_disable_pin(dapm, "Line Jack");
	90	snd_soc_dapm_enable_pin(dapm, "Headset Jack");
fff14720 EM	91	gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
fff14720 EM	92	gpio_set_value(SPITZ_GPIO_MUTE_R, 1);
7fb290d0 LG	93	break;
	94	case SPITZ_HP_OFF:
	95
	96	/* jack removed, everything off */
ce6120cc LG	97	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	98	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
	99	snd_soc_dapm_disable_pin(dapm, "Mic Jack");
	100	snd_soc_dapm_disable_pin(dapm, "Line Jack");
fff14720 EM	101	gpio_set_value(SPITZ_GPIO_MUTE_L, 0);
fff14720 EM	102	gpio_set_value(SPITZ_GPIO_MUTE_R, 0);
7fb290d0 LG	103	break;
7fb290d0 LG	104	}
ce6120cc	105	snd_soc_dapm_sync(dapm);
7fb290d0 LG	106	}
	107
	108	static int spitz_startup(struct snd_pcm_substream *substream)
	109	{
	110	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	111	struct snd_soc_codec *codec = rtd->codec;
7fb290d0	112
71a29560 MB	113	mutex_lock(&codec->mutex);
71a29560 MB	114
7fb290d0 LG	115	/* check the jack status at stream startup */
7fb290d0 LG	116	spitz_ext_control(codec);
71a29560 MB	117
	118	mutex_unlock(&codec->mutex);
	119
7fb290d0 LG	120	return 0;
	121	}
	122
97952f60 LG	123	static int spitz_hw_params(struct snd_pcm_substream *substream,
	124	struct snd_pcm_hw_params *params)
	125	{
	126	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	127	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	128	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
97952f60 LG	129	unsigned int clk = 0;
	130	int ret = 0;
	131
	132	switch (params_rate(params)) {
	133	case 8000:
	134	case 16000:
	135	case 48000:
	136	case 96000:
	137	clk = 12288000;
	138	break;
	139	case 11025:
	140	case 22050:
	141	case 44100:
	142	clk = 11289600;
	143	break;
	144	}
	145
	146	/* set codec DAI configuration */
64105cfd	147	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
97952f60 LG	148	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	149	if (ret < 0)
	150	return ret;
	151
	152	/* set cpu DAI configuration */
64105cfd	153	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
97952f60 LG	154	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	155	if (ret < 0)
	156	return ret;
	157
	158	/* set the codec system clock for DAC and ADC */
64105cfd	159	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
97952f60 LG	160	SND_SOC_CLOCK_IN);
	161	if (ret < 0)
	162	return ret;
	163
	164	/* set the I2S system clock as input (unused) */
64105cfd	165	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
97952f60 LG	166	SND_SOC_CLOCK_IN);
	167	if (ret < 0)
	168	return ret;
	169
	170	return 0;
	171	}
	172
7fb290d0 LG	173	static struct snd_soc_ops spitz_ops = {
7fb290d0 LG	174	.startup = spitz_startup,
97952f60	175	.hw_params = spitz_hw_params,
7fb290d0 LG	176	};
	177
	178	static int spitz_get_jack(struct snd_kcontrol *kcontrol,
	179	struct snd_ctl_elem_value *ucontrol)
	180	{
	181	ucontrol->value.integer.value[0] = spitz_jack_func;
	182	return 0;
	183	}
	184
	185	static int spitz_set_jack(struct snd_kcontrol *kcontrol,
	186	struct snd_ctl_elem_value *ucontrol)
	187	{
	188	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	189
	190	if (spitz_jack_func == ucontrol->value.integer.value[0])
	191	return 0;
	192
	193	spitz_jack_func = ucontrol->value.integer.value[0];
	194	spitz_ext_control(codec);
	195	return 1;
	196	}
	197
	198	static int spitz_get_spk(struct snd_kcontrol *kcontrol,
	199	struct snd_ctl_elem_value *ucontrol)
	200	{
	201	ucontrol->value.integer.value[0] = spitz_spk_func;
	202	return 0;
	203	}
	204
	205	static int spitz_set_spk(struct snd_kcontrol *kcontrol,
	206	struct snd_ctl_elem_value *ucontrol)
	207	{
	208	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	209
	210	if (spitz_spk_func == ucontrol->value.integer.value[0])
	211	return 0;
	212
	213	spitz_spk_func = ucontrol->value.integer.value[0];
	214	spitz_ext_control(codec);
	215	return 1;
	216	}
	217
338c7ed0 JN	218	static int spitz_mic_bias(struct snd_soc_dapm_widget *w,
338c7ed0 JN	219	struct snd_kcontrol *k, int event)
7fb290d0	220	{
04368d05	221	gpio_set_value_cansleep(spitz_mic_gpio, SND_SOC_DAPM_EVENT_ON(event));
7fb290d0 LG	222	return 0;
	223	}
	224
	225	/* spitz machine dapm widgets */
	226	static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
	227	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	228	SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
	229	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	230	SND_SOC_DAPM_LINE("Line Jack", NULL),
	231
	232	/* headset is a mic and mono headphone */
	233	SND_SOC_DAPM_HP("Headset Jack", NULL),
	234	};
	235
	236	/* Spitz machine audio_map */
25191c45	237	static const struct snd_soc_dapm_route audio_map[] = {
7fb290d0 LG	238
	239	/* headphone connected to LOUT1, ROUT1 */
	240	{"Headphone Jack", NULL, "LOUT1"},
	241	{"Headphone Jack", NULL, "ROUT1"},
	242
	243	/* headset connected to ROUT1 and LINPUT1 with bias (def below) */
	244	{"Headset Jack", NULL, "ROUT1"},
	245
	246	/* ext speaker connected to LOUT2, ROUT2 */
	247	{"Ext Spk", NULL , "ROUT2"},
	248	{"Ext Spk", NULL , "LOUT2"},
	249
	250	/* mic is connected to input 1 - with bias */
	251	{"LINPUT1", NULL, "Mic Bias"},
	252	{"Mic Bias", NULL, "Mic Jack"},
	253
	254	/* line is connected to input 1 - no bias */
	255	{"LINPUT1", NULL, "Line Jack"},
7fb290d0 LG	256	};
	257
	258	static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	259	"Off"};
	260	static const char *spk_function[] = {"On", "Off"};
	261	static const struct soc_enum spitz_enum[] = {
	262	SOC_ENUM_SINGLE_EXT(5, jack_function),
	263	SOC_ENUM_SINGLE_EXT(2, spk_function),
	264	};
	265
	266	static const struct snd_kcontrol_new wm8750_spitz_controls[] = {
	267	SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack,
	268	spitz_set_jack),
	269	SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk,
	270	spitz_set_spk),
	271	};
	272
	273	/*
	274	* Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device
	275	*/
f0fba2ad	276	static int spitz_wm8750_init(struct snd_soc_pcm_runtime *rtd)
7fb290d0	277	{
f0fba2ad	278	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	279	struct snd_soc_dapm_context *dapm = &codec->dapm;
eb5f6d75	280	int err;
7fb290d0 LG	281
7fb290d0 LG	282	/* NC codec pins */
ce6120cc LG	283	snd_soc_dapm_nc_pin(dapm, "RINPUT1");
	284	snd_soc_dapm_nc_pin(dapm, "LINPUT2");
	285	snd_soc_dapm_nc_pin(dapm, "RINPUT2");
	286	snd_soc_dapm_nc_pin(dapm, "LINPUT3");
	287	snd_soc_dapm_nc_pin(dapm, "RINPUT3");
	288	snd_soc_dapm_nc_pin(dapm, "OUT3");
	289	snd_soc_dapm_nc_pin(dapm, "MONO1");
7fb290d0 LG	290
7fb290d0 LG	291	/* Add spitz specific controls */
eb5f6d75 PZ	292	err = snd_soc_add_controls(codec, wm8750_spitz_controls,
	293	ARRAY_SIZE(wm8750_spitz_controls));
	294	if (err < 0)
	295	return err;
7fb290d0 LG	296
7fb290d0 LG	297	/* Add spitz specific widgets */
ce6120cc	298	snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets,
25191c45	299	ARRAY_SIZE(wm8750_dapm_widgets));
7fb290d0	300
25191c45	301	/* Set up spitz specific audio paths */
ce6120cc	302	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
7fb290d0	303
7fb290d0 LG	304	return 0;
	305	}
	306
7fb290d0 LG	307	/* spitz digital audio interface glue - connects codec <--> CPU */
	308	static struct snd_soc_dai_link spitz_dai = {
	309	.name = "wm8750",
	310	.stream_name = "WM8750",
a3adfa00	311	.cpu_dai_name = "pxa2xx-i2s",
f0fba2ad LG	312	.codec_dai_name = "wm8750-hifi",
f0fba2ad LG	313	.platform_name = "pxa-pcm-audio",
dc5de62b	314	.codec_name = "wm8750.0-001b",
7fb290d0	315	.init = spitz_wm8750_init,
97952f60	316	.ops = &spitz_ops,
7fb290d0 LG	317	};
	318
	319	/* spitz audio machine driver */
87506549	320	static struct snd_soc_card snd_soc_spitz = {
7fb290d0	321	.name = "Spitz",
561c6a17	322	.owner = THIS_MODULE,
7fb290d0 LG	323	.dai_link = &spitz_dai,
7fb290d0 LG	324	.num_links = 1,
7fb290d0 LG	325	};
7fb290d0 LG	326
7fb290d0 LG	327	static struct platform_device *spitz_snd_device;
	328
	329	static int __init spitz_init(void)
	330	{
	331	int ret;
	332
	333	if (!(machine_is_spitz() \|\| machine_is_borzoi() \|\| machine_is_akita()))
	334	return -ENODEV;
	335
04368d05 MV	336	if (machine_is_borzoi() \|\| machine_is_spitz())
	337	spitz_mic_gpio = SPITZ_GPIO_MIC_BIAS;
	338	else
	339	spitz_mic_gpio = AKITA_GPIO_MIC_BIAS;
	340
	341	ret = gpio_request(spitz_mic_gpio, "MIC GPIO");
	342	if (ret)
	343	goto err1;
	344
	345	ret = gpio_direction_output(spitz_mic_gpio, 0);
	346	if (ret)
	347	goto err2;
	348
7fb290d0	349	spitz_snd_device = platform_device_alloc("soc-audio", -1);
04368d05 MV	350	if (!spitz_snd_device) {
	351	ret = -ENOMEM;
	352	goto err2;
	353	}
7fb290d0	354
f0fba2ad	355	platform_set_drvdata(spitz_snd_device, &snd_soc_spitz);
7fb290d0	356
04368d05	357	ret = platform_device_add(spitz_snd_device);
7fb290d0	358	if (ret)
04368d05 MV	359	goto err3;
	360
	361	return 0;
7fb290d0	362
04368d05 MV	363	err3:
	364	platform_device_put(spitz_snd_device);
	365	err2:
	366	gpio_free(spitz_mic_gpio);
	367	err1:
7fb290d0 LG	368	return ret;
	369	}
	370
	371	static void __exit spitz_exit(void)
	372	{
	373	platform_device_unregister(spitz_snd_device);
04368d05	374	gpio_free(spitz_mic_gpio);
7fb290d0 LG	375	}
	376
	377	module_init(spitz_init);
	378	module_exit(spitz_exit);
	379
	380	MODULE_AUTHOR("Richard Purdie");
	381	MODULE_DESCRIPTION("ALSA SoC Spitz");
	382	MODULE_LICENSE("GPL");