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

/*
 * corgi.c  --  SoC audio for Corgi
 *
 * 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/i2c.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/corgi.h>
#include <mach/audio.h>

#include "../codecs/wm8731.h"
#include "pxa2xx-i2s.h"

#define CORGI_HP        0
#define CORGI_MIC       1
#define CORGI_LINE      2
#define CORGI_HEADSET   3
#define CORGI_HP_OFF    4
#define CORGI_SPK_ON    0
#define CORGI_SPK_OFF   1

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

static int corgi_jack_func;
static int corgi_spk_func;

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

	/* set up jack connection */
	switch (corgi_jack_func) {
	case CORGI_HP:
		/* set = unmute headphone */
		gpio_set_value(CORGI_GPIO_MUTE_L, 1);
		gpio_set_value(CORGI_GPIO_MUTE_R, 1);
		snd_soc_dapm_disable_pin(dapm, "Mic Jack");
		snd_soc_dapm_disable_pin(dapm, "Line Jack");
		snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		break;
	case CORGI_MIC:
		/* reset = mute headphone */
		gpio_set_value(CORGI_GPIO_MUTE_L, 0);
		gpio_set_value(CORGI_GPIO_MUTE_R, 0);
		snd_soc_dapm_enable_pin(dapm, "Mic Jack");
		snd_soc_dapm_disable_pin(dapm, "Line Jack");
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		break;
	case CORGI_LINE:
		gpio_set_value(CORGI_GPIO_MUTE_L, 0);
		gpio_set_value(CORGI_GPIO_MUTE_R, 0);
		snd_soc_dapm_disable_pin(dapm, "Mic Jack");
		snd_soc_dapm_enable_pin(dapm, "Line Jack");
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		break;
	case CORGI_HEADSET:
		gpio_set_value(CORGI_GPIO_MUTE_L, 0);
		gpio_set_value(CORGI_GPIO_MUTE_R, 1);
		snd_soc_dapm_enable_pin(dapm, "Mic Jack");
		snd_soc_dapm_disable_pin(dapm, "Line Jack");
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_enable_pin(dapm, "Headset Jack");
		break;
	}

	if (corgi_spk_func == CORGI_SPK_ON)
		snd_soc_dapm_enable_pin(dapm, "Ext Spk");
	else
		snd_soc_dapm_disable_pin(dapm, "Ext Spk");

	/* signal a DAPM event */
	snd_soc_dapm_sync(dapm);
}

static int corgi_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 */
	corgi_ext_control(codec);

	mutex_unlock(&codec->mutex);

	return 0;
}

/* we need to unmute the HP at shutdown as the mute burns power on corgi */
static void corgi_shutdown(struct snd_pcm_substream *substream)
{
	/* set = unmute headphone */
	gpio_set_value(CORGI_GPIO_MUTE_L, 1);
	gpio_set_value(CORGI_GPIO_MUTE_R, 1);
}

static int corgi_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, WM8731_SYSCLK_XTAL, 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 corgi_ops = {
	.startup = corgi_startup,
	.hw_params = corgi_hw_params,
	.shutdown = corgi_shutdown,
};

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

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

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

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

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

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

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

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

static int corgi_amp_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
{
	gpio_set_value(CORGI_GPIO_APM_ON, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
}

static int corgi_mic_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
{
	gpio_set_value(CORGI_GPIO_MIC_BIAS, SND_SOC_DAPM_EVENT_ON(event));
	return 0;
}

/* corgi machine dapm widgets */
static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event),
SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event),
SND_SOC_DAPM_LINE("Line Jack", NULL),
SND_SOC_DAPM_HP("Headset Jack", NULL),
};

/* Corgi machine audio map (connections to the codec pins) */
static const struct snd_soc_dapm_route audio_map[] = {

	/* headset Jack  - in = micin, out = LHPOUT*/
	{"Headset Jack", NULL, "LHPOUT"},

	/* headphone connected to LHPOUT1, RHPOUT1 */
	{"Headphone Jack", NULL, "LHPOUT"},
	{"Headphone Jack", NULL, "RHPOUT"},

	/* speaker connected to LOUT, ROUT */
	{"Ext Spk", NULL, "ROUT"},
	{"Ext Spk", NULL, "LOUT"},

	/* mic is connected to MICIN (via right channel of headphone jack) */
	{"MICIN", NULL, "Mic Jack"},

	/* Same as the above but no mic bias for line signals */
	{"MICIN", 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 corgi_enum[] = {
	SOC_ENUM_SINGLE_EXT(5, jack_function),
	SOC_ENUM_SINGLE_EXT(2, spk_function),
};

static const struct snd_kcontrol_new wm8731_corgi_controls[] = {
	SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack,
		corgi_set_jack),
	SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk,
		corgi_set_spk),
};

/*
 * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device
 */
static int corgi_wm8731_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int err;

	snd_soc_dapm_nc_pin(dapm, "LLINEIN");
	snd_soc_dapm_nc_pin(dapm, "RLINEIN");

	/* Add corgi specific controls */
	err = snd_soc_add_controls(codec, wm8731_corgi_controls,
				ARRAY_SIZE(wm8731_corgi_controls));
	if (err < 0)
		return err;

	/* Add corgi specific widgets */
	snd_soc_dapm_new_controls(dapm, wm8731_dapm_widgets,
				  ARRAY_SIZE(wm8731_dapm_widgets));

	/* Set up corgi specific audio path audio_map */
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_sync(dapm);
	return 0;
}

/* corgi digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link corgi_dai = {
	.name = "WM8731",
	.stream_name = "WM8731",
	.cpu_dai_name = "pxa-is2-dai",
	.codec_dai_name = "wm8731-hifi",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "wm8731-codec-0.001a",
	.init = corgi_wm8731_init,
	.ops = &corgi_ops,
};

/* corgi audio machine driver */
static struct snd_soc_card snd_soc_corgi = {
	.name = "Corgi",
	.dai_link = &corgi_dai,
	.num_links = 1,
};

static struct platform_device *corgi_snd_device;

static int __init corgi_init(void)
{
	int ret;

	if (!(machine_is_corgi() || machine_is_shepherd() ||
	      machine_is_husky()))
		return -ENODEV;

	corgi_snd_device = platform_device_alloc("soc-audio", -1);
	if (!corgi_snd_device)
		return -ENOMEM;

	platform_set_drvdata(corgi_snd_device, &snd_soc_corgi);
	ret = platform_device_add(corgi_snd_device);

	if (ret)
		platform_device_put(corgi_snd_device);

	return ret;
}

static void __exit corgi_exit(void)
{
	platform_device_unregister(corgi_snd_device);
}

module_init(corgi_init);
module_exit(corgi_exit);

/* Module information */
MODULE_AUTHOR("Richard Purdie");
MODULE_DESCRIPTION("ALSA SoC Corgi");
MODULE_LICENSE("GPL");
Commit	Line	Data
a1eb4b3c LG	1	/*
	2	* corgi.c -- SoC audio for Corgi
	3	*
	4	* Copyright 2005 Wolfson Microelectronics PLC.
	5	* Copyright 2005 Openedhand Ltd.
	6	*
d331124d	7	* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
a1eb4b3c 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.
a1eb4b3c LG	14	*/
	15
	16	#include <linux/module.h>
	17	#include <linux/moduleparam.h>
	18	#include <linux/timer.h>
fc996757	19	#include <linux/i2c.h>
a1eb4b3c LG	20	#include <linux/interrupt.h>
a1eb4b3c LG	21	#include <linux/platform_device.h>
6168cda9	22	#include <linux/gpio.h>
a1eb4b3c LG	23	#include <sound/core.h>
	24	#include <sound/pcm.h>
	25	#include <sound/soc.h>
a1eb4b3c LG	26
a1eb4b3c LG	27	#include <asm/mach-types.h>
a09e64fb RK	28	#include <mach/corgi.h>
a09e64fb RK	29	#include <mach/audio.h>
a1eb4b3c LG	30
a1eb4b3c LG	31	#include "../codecs/wm8731.h"
d928b25a	32	#include "pxa2xx-i2s.h"
a1eb4b3c LG	33
	34	#define CORGI_HP 0
	35	#define CORGI_MIC 1
	36	#define CORGI_LINE 2
	37	#define CORGI_HEADSET 3
	38	#define CORGI_HP_OFF 4
	39	#define CORGI_SPK_ON 0
	40	#define CORGI_SPK_OFF 1
	41
	42	/* audio clock in Hz - rounded from 12.235MHz */
	43	#define CORGI_AUDIO_CLOCK 12288000
	44
	45	static int corgi_jack_func;
	46	static int corgi_spk_func;
	47
	48	static void corgi_ext_control(struct snd_soc_codec *codec)
	49	{
ce6120cc LG	50	struct snd_soc_dapm_context *dapm = &codec->dapm;
ce6120cc LG	51
a1eb4b3c LG	52	/* set up jack connection */
	53	switch (corgi_jack_func) {
	54	case CORGI_HP:
a1eb4b3c	55	/* set = unmute headphone */
6168cda9 EM	56	gpio_set_value(CORGI_GPIO_MUTE_L, 1);
6168cda9 EM	57	gpio_set_value(CORGI_GPIO_MUTE_R, 1);
ce6120cc LG	58	snd_soc_dapm_disable_pin(dapm, "Mic Jack");
	59	snd_soc_dapm_disable_pin(dapm, "Line Jack");
	60	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	61	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
a1eb4b3c LG	62	break;
a1eb4b3c LG	63	case CORGI_MIC:
a1eb4b3c	64	/* reset = mute headphone */
6168cda9 EM	65	gpio_set_value(CORGI_GPIO_MUTE_L, 0);
6168cda9 EM	66	gpio_set_value(CORGI_GPIO_MUTE_R, 0);
ce6120cc LG	67	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
	68	snd_soc_dapm_disable_pin(dapm, "Line Jack");
	69	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	70	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
a1eb4b3c LG	71	break;
a1eb4b3c LG	72	case CORGI_LINE:
6168cda9 EM	73	gpio_set_value(CORGI_GPIO_MUTE_L, 0);
6168cda9 EM	74	gpio_set_value(CORGI_GPIO_MUTE_R, 0);
ce6120cc LG	75	snd_soc_dapm_disable_pin(dapm, "Mic Jack");
	76	snd_soc_dapm_enable_pin(dapm, "Line Jack");
	77	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	78	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
a1eb4b3c LG	79	break;
a1eb4b3c LG	80	case CORGI_HEADSET:
6168cda9 EM	81	gpio_set_value(CORGI_GPIO_MUTE_L, 0);
6168cda9 EM	82	gpio_set_value(CORGI_GPIO_MUTE_R, 1);
ce6120cc LG	83	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
	84	snd_soc_dapm_disable_pin(dapm, "Line Jack");
	85	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	86	snd_soc_dapm_enable_pin(dapm, "Headset Jack");
a1eb4b3c LG	87	break;
	88	}
	89
	90	if (corgi_spk_func == CORGI_SPK_ON)
ce6120cc	91	snd_soc_dapm_enable_pin(dapm, "Ext Spk");
a5302181	92	else
ce6120cc	93	snd_soc_dapm_disable_pin(dapm, "Ext Spk");
a1eb4b3c LG	94
a1eb4b3c LG	95	/* signal a DAPM event */
ce6120cc	96	snd_soc_dapm_sync(dapm);
a1eb4b3c LG	97	}
	98
	99	static int corgi_startup(struct snd_pcm_substream *substream)
	100	{
	101	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	102	struct snd_soc_codec *codec = rtd->codec;
a1eb4b3c	103
71a29560 MB	104	mutex_lock(&codec->mutex);
71a29560 MB	105
a1eb4b3c LG	106	/* check the jack status at stream startup */
a1eb4b3c LG	107	corgi_ext_control(codec);
71a29560 MB	108
	109	mutex_unlock(&codec->mutex);
	110
a1eb4b3c LG	111	return 0;
	112	}
	113
	114	/* we need to unmute the HP at shutdown as the mute burns power on corgi */
5220ed6b	115	static void corgi_shutdown(struct snd_pcm_substream *substream)
a1eb4b3c	116	{
a1eb4b3c	117	/* set = unmute headphone */
6168cda9 EM	118	gpio_set_value(CORGI_GPIO_MUTE_L, 1);
6168cda9 EM	119	gpio_set_value(CORGI_GPIO_MUTE_R, 1);
a1eb4b3c LG	120	}
a1eb4b3c LG	121
d928b25a LG	122	static int corgi_hw_params(struct snd_pcm_substream *substream,
	123	struct snd_pcm_hw_params *params)
	124	{
	125	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	126	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	127	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
d928b25a LG	128	unsigned int clk = 0;
	129	int ret = 0;
	130
	131	switch (params_rate(params)) {
	132	case 8000:
	133	case 16000:
	134	case 48000:
	135	case 96000:
	136	clk = 12288000;
	137	break;
	138	case 11025:
	139	case 22050:
	140	case 44100:
	141	clk = 11289600;
	142	break;
	143	}
	144
	145	/* set codec DAI configuration */
64105cfd	146	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
d928b25a LG	147	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	148	if (ret < 0)
	149	return ret;
	150
	151	/* set cpu DAI configuration */
64105cfd	152	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
d928b25a LG	153	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	154	if (ret < 0)
	155	return ret;
	156
	157	/* set the codec system clock for DAC and ADC */
9745e824	158	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL, clk,
d928b25a LG	159	SND_SOC_CLOCK_IN);
	160	if (ret < 0)
	161	return ret;
	162
	163	/* set the I2S system clock as input (unused) */
64105cfd	164	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
d928b25a LG	165	SND_SOC_CLOCK_IN);
	166	if (ret < 0)
	167	return ret;
	168
	169	return 0;
	170	}
	171
a1eb4b3c LG	172	static struct snd_soc_ops corgi_ops = {
a1eb4b3c LG	173	.startup = corgi_startup,
d928b25a	174	.hw_params = corgi_hw_params,
a1eb4b3c LG	175	.shutdown = corgi_shutdown,
	176	};
	177
	178	static int corgi_get_jack(struct snd_kcontrol *kcontrol,
	179	struct snd_ctl_elem_value *ucontrol)
	180	{
	181	ucontrol->value.integer.value[0] = corgi_jack_func;
	182	return 0;
	183	}
	184
	185	static int corgi_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 (corgi_jack_func == ucontrol->value.integer.value[0])
	191	return 0;
	192
	193	corgi_jack_func = ucontrol->value.integer.value[0];
	194	corgi_ext_control(codec);
	195	return 1;
	196	}
	197
	198	static int corgi_get_spk(struct snd_kcontrol *kcontrol,
	199	struct snd_ctl_elem_value *ucontrol)
	200	{
	201	ucontrol->value.integer.value[0] = corgi_spk_func;
	202	return 0;
	203	}
	204
	205	static int corgi_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 (corgi_spk_func == ucontrol->value.integer.value[0])
	211	return 0;
	212
	213	corgi_spk_func = ucontrol->value.integer.value[0];
	214	corgi_ext_control(codec);
	215	return 1;
	216	}
	217
338c7ed0 JN	218	static int corgi_amp_event(struct snd_soc_dapm_widget *w,
338c7ed0 JN	219	struct snd_kcontrol *k, int event)
a1eb4b3c	220	{
6168cda9	221	gpio_set_value(CORGI_GPIO_APM_ON, SND_SOC_DAPM_EVENT_ON(event));
a1eb4b3c LG	222	return 0;
	223	}
	224
338c7ed0 JN	225	static int corgi_mic_event(struct snd_soc_dapm_widget *w,
338c7ed0 JN	226	struct snd_kcontrol *k, int event)
a1eb4b3c	227	{
6168cda9	228	gpio_set_value(CORGI_GPIO_MIC_BIAS, SND_SOC_DAPM_EVENT_ON(event));
a1eb4b3c LG	229	return 0;
	230	}
	231
	232	/* corgi machine dapm widgets */
	233	static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
	234	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	235	SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event),
	236	SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event),
	237	SND_SOC_DAPM_LINE("Line Jack", NULL),
	238	SND_SOC_DAPM_HP("Headset Jack", NULL),
	239	};
	240
	241	/* Corgi machine audio map (connections to the codec pins) */
25191c45	242	static const struct snd_soc_dapm_route audio_map[] = {
a1eb4b3c LG	243
	244	/* headset Jack - in = micin, out = LHPOUT*/
	245	{"Headset Jack", NULL, "LHPOUT"},
	246
	247	/* headphone connected to LHPOUT1, RHPOUT1 */
	248	{"Headphone Jack", NULL, "LHPOUT"},
	249	{"Headphone Jack", NULL, "RHPOUT"},
	250
	251	/* speaker connected to LOUT, ROUT */
	252	{"Ext Spk", NULL, "ROUT"},
	253	{"Ext Spk", NULL, "LOUT"},
	254
	255	/* mic is connected to MICIN (via right channel of headphone jack) */
	256	{"MICIN", NULL, "Mic Jack"},
	257
	258	/* Same as the above but no mic bias for line signals */
	259	{"MICIN", NULL, "Line Jack"},
a1eb4b3c LG	260	};
	261
	262	static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	263	"Off"};
	264	static const char *spk_function[] = {"On", "Off"};
	265	static const struct soc_enum corgi_enum[] = {
	266	SOC_ENUM_SINGLE_EXT(5, jack_function),
	267	SOC_ENUM_SINGLE_EXT(2, spk_function),
	268	};
	269
	270	static const struct snd_kcontrol_new wm8731_corgi_controls[] = {
	271	SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack,
	272	corgi_set_jack),
	273	SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk,
	274	corgi_set_spk),
	275	};
	276
	277	/*
	278	* Logic for a wm8731 as connected on a Sharp SL-C7x0 Device
	279	*/
f0fba2ad	280	static int corgi_wm8731_init(struct snd_soc_pcm_runtime *rtd)
a1eb4b3c	281	{
f0fba2ad	282	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	283	struct snd_soc_dapm_context *dapm = &codec->dapm;
eb5f6d75	284	int err;
a1eb4b3c	285
ce6120cc LG	286	snd_soc_dapm_nc_pin(dapm, "LLINEIN");
ce6120cc LG	287	snd_soc_dapm_nc_pin(dapm, "RLINEIN");
a1eb4b3c LG	288
a1eb4b3c LG	289	/* Add corgi specific controls */
eb5f6d75 PZ	290	err = snd_soc_add_controls(codec, wm8731_corgi_controls,
	291	ARRAY_SIZE(wm8731_corgi_controls));
	292	if (err < 0)
	293	return err;
a1eb4b3c LG	294
a1eb4b3c LG	295	/* Add corgi specific widgets */
ce6120cc	296	snd_soc_dapm_new_controls(dapm, wm8731_dapm_widgets,
25191c45	297	ARRAY_SIZE(wm8731_dapm_widgets));
a1eb4b3c LG	298
a1eb4b3c LG	299	/* Set up corgi specific audio path audio_map */
ce6120cc	300	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
a1eb4b3c	301
ce6120cc	302	snd_soc_dapm_sync(dapm);
a1eb4b3c LG	303	return 0;
	304	}
	305
a1eb4b3c LG	306	/* corgi digital audio interface glue - connects codec <--> CPU */
	307	static struct snd_soc_dai_link corgi_dai = {
	308	.name = "WM8731",
	309	.stream_name = "WM8731",
f0fba2ad LG	310	.cpu_dai_name = "pxa-is2-dai",
	311	.codec_dai_name = "wm8731-hifi",
	312	.platform_name = "pxa-pcm-audio",
	313	.codec_name = "wm8731-codec-0.001a",
a1eb4b3c	314	.init = corgi_wm8731_init,
d928b25a	315	.ops = &corgi_ops,
a1eb4b3c LG	316	};
	317
	318	/* corgi audio machine driver */
87506549	319	static struct snd_soc_card snd_soc_corgi = {
a1eb4b3c LG	320	.name = "Corgi",
	321	.dai_link = &corgi_dai,
	322	.num_links = 1,
a1eb4b3c LG	323	};
a1eb4b3c LG	324
a1eb4b3c LG	325	static struct platform_device *corgi_snd_device;
	326
	327	static int __init corgi_init(void)
	328	{
	329	int ret;
	330
1bfcd361 MB	331	if (!(machine_is_corgi() \|\| machine_is_shepherd() \|\|
1bfcd361 MB	332	machine_is_husky()))
a1eb4b3c LG	333	return -ENODEV;
	334
	335	corgi_snd_device = platform_device_alloc("soc-audio", -1);
	336	if (!corgi_snd_device)
	337	return -ENOMEM;
	338
f0fba2ad	339	platform_set_drvdata(corgi_snd_device, &snd_soc_corgi);
a1eb4b3c LG	340	ret = platform_device_add(corgi_snd_device);
	341
	342	if (ret)
	343	platform_device_put(corgi_snd_device);
	344
	345	return ret;
	346	}
	347
	348	static void __exit corgi_exit(void)
	349	{
	350	platform_device_unregister(corgi_snd_device);
	351	}
	352
	353	module_init(corgi_init);
	354	module_exit(corgi_exit);
	355
	356	/* Module information */
	357	MODULE_AUTHOR("Richard Purdie");
	358	MODULE_DESCRIPTION("ALSA SoC Corgi");
	359	MODULE_LICENSE("GPL");