[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 <sound/soc-dapm.h>

#include <asm/mach-types.h>
#include <mach/corgi.h>
#include <mach/audio.h>

#include "../codecs/wm8731.h"
#include "pxa2xx-pcm.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)
{
	/* 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(codec, "Mic Jack");
		snd_soc_dapm_disable_pin(codec, "Line Jack");
		snd_soc_dapm_enable_pin(codec, "Headphone Jack");
		snd_soc_dapm_disable_pin(codec, "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(codec, "Mic Jack");
		snd_soc_dapm_disable_pin(codec, "Line Jack");
		snd_soc_dapm_disable_pin(codec, "Headphone Jack");
		snd_soc_dapm_disable_pin(codec, "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(codec, "Mic Jack");
		snd_soc_dapm_enable_pin(codec, "Line Jack");
		snd_soc_dapm_disable_pin(codec, "Headphone Jack");
		snd_soc_dapm_disable_pin(codec, "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(codec, "Mic Jack");
		snd_soc_dapm_disable_pin(codec, "Line Jack");
		snd_soc_dapm_disable_pin(codec, "Headphone Jack");
		snd_soc_dapm_enable_pin(codec, "Headset Jack");
		break;
	}

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

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

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

	/* check the jack status at stream startup */
	corgi_ext_control(codec);
	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->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->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, 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_codec *codec)
{
	int err;

	snd_soc_dapm_nc_pin(codec, "LLINEIN");
	snd_soc_dapm_nc_pin(codec, "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(codec, wm8731_dapm_widgets,
				  ARRAY_SIZE(wm8731_dapm_widgets));

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

	snd_soc_dapm_sync(codec);
	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 = &pxa_i2s_dai,
	.codec_dai = &wm8731_dai,
	.init = corgi_wm8731_init,
	.ops = &corgi_ops,
};

/* corgi audio machine driver */
static struct snd_soc_card snd_soc_corgi = {
	.name = "Corgi",
	.platform = &pxa2xx_soc_platform,
	.dai_link = &corgi_dai,
	.num_links = 1,
};

/* corgi audio subsystem */
static struct snd_soc_device corgi_snd_devdata = {
	.card = &snd_soc_corgi,
	.codec_dev = &soc_codec_dev_wm8731,
};

/*
 * FIXME: This is a temporary bodge to avoid cross-tree merge issues.
 * New drivers should register the wm8731 I2C device in the machine
 * setup code (under arch/arm for ARM systems).
 */
static int wm8731_i2c_register(void)
{
	struct i2c_board_info info;
	struct i2c_adapter *adapter;
	struct i2c_client *client;

	memset(&info, 0, sizeof(struct i2c_board_info));
	info.addr = 0x1b;
	strlcpy(info.type, "wm8731", I2C_NAME_SIZE);

	adapter = i2c_get_adapter(0);
	if (!adapter) {
		printk(KERN_ERR "can't get i2c adapter 0\n");
		return -ENODEV;
	}

	client = i2c_new_device(adapter, &info);
	i2c_put_adapter(adapter);
	if (!client) {
		printk(KERN_ERR "can't add i2c device at 0x%x\n",
			(unsigned int)info.addr);
		return -ENODEV;
	}

	return 0;
}

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;

	ret = wm8731_i2c_register();
	if (ret != 0)
		return ret;

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

	platform_set_drvdata(corgi_snd_device, &corgi_snd_devdata);
	corgi_snd_devdata.dev = &corgi_snd_device->dev;
	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>
	26	#include <sound/soc-dapm.h>
	27
	28	#include <asm/mach-types.h>
a09e64fb RK	29	#include <mach/corgi.h>
a09e64fb RK	30	#include <mach/audio.h>
a1eb4b3c LG	31
	32	#include "../codecs/wm8731.h"
	33	#include "pxa2xx-pcm.h"
d928b25a	34	#include "pxa2xx-i2s.h"
a1eb4b3c LG	35
	36	#define CORGI_HP 0
	37	#define CORGI_MIC 1
	38	#define CORGI_LINE 2
	39	#define CORGI_HEADSET 3
	40	#define CORGI_HP_OFF 4
	41	#define CORGI_SPK_ON 0
	42	#define CORGI_SPK_OFF 1
	43
	44	/* audio clock in Hz - rounded from 12.235MHz */
	45	#define CORGI_AUDIO_CLOCK 12288000
	46
	47	static int corgi_jack_func;
	48	static int corgi_spk_func;
	49
	50	static void corgi_ext_control(struct snd_soc_codec *codec)
	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);
a5302181 LG	58	snd_soc_dapm_disable_pin(codec, "Mic Jack");
	59	snd_soc_dapm_disable_pin(codec, "Line Jack");
	60	snd_soc_dapm_enable_pin(codec, "Headphone Jack");
	61	snd_soc_dapm_disable_pin(codec, "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);
a5302181 LG	67	snd_soc_dapm_enable_pin(codec, "Mic Jack");
	68	snd_soc_dapm_disable_pin(codec, "Line Jack");
	69	snd_soc_dapm_disable_pin(codec, "Headphone Jack");
	70	snd_soc_dapm_disable_pin(codec, "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);
a5302181 LG	75	snd_soc_dapm_disable_pin(codec, "Mic Jack");
	76	snd_soc_dapm_enable_pin(codec, "Line Jack");
	77	snd_soc_dapm_disable_pin(codec, "Headphone Jack");
	78	snd_soc_dapm_disable_pin(codec, "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);
a5302181 LG	83	snd_soc_dapm_enable_pin(codec, "Mic Jack");
	84	snd_soc_dapm_disable_pin(codec, "Line Jack");
	85	snd_soc_dapm_disable_pin(codec, "Headphone Jack");
	86	snd_soc_dapm_enable_pin(codec, "Headset Jack");
a1eb4b3c LG	87	break;
	88	}
	89
	90	if (corgi_spk_func == CORGI_SPK_ON)
a5302181 LG	91	snd_soc_dapm_enable_pin(codec, "Ext Spk");
	92	else
	93	snd_soc_dapm_disable_pin(codec, "Ext Spk");
a1eb4b3c LG	94
a1eb4b3c LG	95	/* signal a DAPM event */
a5302181	96	snd_soc_dapm_sync(codec);
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;
9e30d771	102	struct snd_soc_codec *codec = rtd->socdev->card->codec;
a1eb4b3c LG	103
	104	/* check the jack status at stream startup */
	105	corgi_ext_control(codec);
	106	return 0;
	107	}
	108
	109	/* we need to unmute the HP at shutdown as the mute burns power on corgi */
5220ed6b	110	static void corgi_shutdown(struct snd_pcm_substream *substream)
a1eb4b3c	111	{
a1eb4b3c	112	/* set = unmute headphone */
6168cda9 EM	113	gpio_set_value(CORGI_GPIO_MUTE_L, 1);
6168cda9 EM	114	gpio_set_value(CORGI_GPIO_MUTE_R, 1);
a1eb4b3c LG	115	}
a1eb4b3c LG	116
d928b25a LG	117	static int corgi_hw_params(struct snd_pcm_substream *substream,
	118	struct snd_pcm_hw_params *params)
	119	{
	120	struct snd_soc_pcm_runtime *rtd = substream->private_data;
917f93ac LG	121	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
917f93ac LG	122	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
d928b25a LG	123	unsigned int clk = 0;
	124	int ret = 0;
	125
	126	switch (params_rate(params)) {
	127	case 8000:
	128	case 16000:
	129	case 48000:
	130	case 96000:
	131	clk = 12288000;
	132	break;
	133	case 11025:
	134	case 22050:
	135	case 44100:
	136	clk = 11289600;
	137	break;
	138	}
	139
	140	/* set codec DAI configuration */
64105cfd	141	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
d928b25a LG	142	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	143	if (ret < 0)
	144	return ret;
	145
	146	/* set cpu DAI configuration */
64105cfd	147	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
d928b25a LG	148	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	149	if (ret < 0)
	150	return ret;
	151
	152	/* set the codec system clock for DAC and ADC */
64105cfd	153	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK, clk,
d928b25a LG	154	SND_SOC_CLOCK_IN);
	155	if (ret < 0)
	156	return ret;
	157
	158	/* set the I2S system clock as input (unused) */
64105cfd	159	ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
d928b25a LG	160	SND_SOC_CLOCK_IN);
	161	if (ret < 0)
	162	return ret;
	163
	164	return 0;
	165	}
	166
a1eb4b3c LG	167	static struct snd_soc_ops corgi_ops = {
a1eb4b3c LG	168	.startup = corgi_startup,
d928b25a	169	.hw_params = corgi_hw_params,
a1eb4b3c LG	170	.shutdown = corgi_shutdown,
	171	};
	172
	173	static int corgi_get_jack(struct snd_kcontrol *kcontrol,
	174	struct snd_ctl_elem_value *ucontrol)
	175	{
	176	ucontrol->value.integer.value[0] = corgi_jack_func;
	177	return 0;
	178	}
	179
	180	static int corgi_set_jack(struct snd_kcontrol *kcontrol,
	181	struct snd_ctl_elem_value *ucontrol)
	182	{
	183	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	184
	185	if (corgi_jack_func == ucontrol->value.integer.value[0])
	186	return 0;
	187
	188	corgi_jack_func = ucontrol->value.integer.value[0];
	189	corgi_ext_control(codec);
	190	return 1;
	191	}
	192
	193	static int corgi_get_spk(struct snd_kcontrol *kcontrol,
	194	struct snd_ctl_elem_value *ucontrol)
	195	{
	196	ucontrol->value.integer.value[0] = corgi_spk_func;
	197	return 0;
	198	}
	199
	200	static int corgi_set_spk(struct snd_kcontrol *kcontrol,
	201	struct snd_ctl_elem_value *ucontrol)
	202	{
	203	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	204
	205	if (corgi_spk_func == ucontrol->value.integer.value[0])
	206	return 0;
	207
	208	corgi_spk_func = ucontrol->value.integer.value[0];
	209	corgi_ext_control(codec);
	210	return 1;
	211	}
	212
338c7ed0 JN	213	static int corgi_amp_event(struct snd_soc_dapm_widget *w,
338c7ed0 JN	214	struct snd_kcontrol *k, int event)
a1eb4b3c	215	{
6168cda9	216	gpio_set_value(CORGI_GPIO_APM_ON, SND_SOC_DAPM_EVENT_ON(event));
a1eb4b3c LG	217	return 0;
	218	}
	219
338c7ed0 JN	220	static int corgi_mic_event(struct snd_soc_dapm_widget *w,
338c7ed0 JN	221	struct snd_kcontrol *k, int event)
a1eb4b3c	222	{
6168cda9	223	gpio_set_value(CORGI_GPIO_MIC_BIAS, SND_SOC_DAPM_EVENT_ON(event));
a1eb4b3c LG	224	return 0;
	225	}
	226
	227	/* corgi machine dapm widgets */
	228	static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
	229	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	230	SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event),
	231	SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event),
	232	SND_SOC_DAPM_LINE("Line Jack", NULL),
	233	SND_SOC_DAPM_HP("Headset Jack", NULL),
	234	};
	235
	236	/* Corgi machine audio map (connections to the codec pins) */
25191c45	237	static const struct snd_soc_dapm_route audio_map[] = {
a1eb4b3c LG	238
	239	/* headset Jack - in = micin, out = LHPOUT*/
	240	{"Headset Jack", NULL, "LHPOUT"},
	241
	242	/* headphone connected to LHPOUT1, RHPOUT1 */
	243	{"Headphone Jack", NULL, "LHPOUT"},
	244	{"Headphone Jack", NULL, "RHPOUT"},
	245
	246	/* speaker connected to LOUT, ROUT */
	247	{"Ext Spk", NULL, "ROUT"},
	248	{"Ext Spk", NULL, "LOUT"},
	249
	250	/* mic is connected to MICIN (via right channel of headphone jack) */
	251	{"MICIN", NULL, "Mic Jack"},
	252
	253	/* Same as the above but no mic bias for line signals */
	254	{"MICIN", NULL, "Line Jack"},
a1eb4b3c LG	255	};
	256
	257	static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	258	"Off"};
	259	static const char *spk_function[] = {"On", "Off"};
	260	static const struct soc_enum corgi_enum[] = {
	261	SOC_ENUM_SINGLE_EXT(5, jack_function),
	262	SOC_ENUM_SINGLE_EXT(2, spk_function),
	263	};
	264
	265	static const struct snd_kcontrol_new wm8731_corgi_controls[] = {
	266	SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack,
	267	corgi_set_jack),
	268	SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk,
	269	corgi_set_spk),
	270	};
	271
	272	/*
	273	* Logic for a wm8731 as connected on a Sharp SL-C7x0 Device
	274	*/
	275	static int corgi_wm8731_init(struct snd_soc_codec *codec)
	276	{
eb5f6d75	277	int err;
a1eb4b3c	278
35f5e54d MB	279	snd_soc_dapm_nc_pin(codec, "LLINEIN");
35f5e54d MB	280	snd_soc_dapm_nc_pin(codec, "RLINEIN");
a1eb4b3c LG	281
a1eb4b3c LG	282	/* Add corgi specific controls */
eb5f6d75 PZ	283	err = snd_soc_add_controls(codec, wm8731_corgi_controls,
	284	ARRAY_SIZE(wm8731_corgi_controls));
	285	if (err < 0)
	286	return err;
a1eb4b3c LG	287
a1eb4b3c LG	288	/* Add corgi specific widgets */
25191c45 MB	289	snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets,
25191c45 MB	290	ARRAY_SIZE(wm8731_dapm_widgets));
a1eb4b3c LG	291
a1eb4b3c LG	292	/* Set up corgi specific audio path audio_map */
25191c45	293	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
a1eb4b3c	294
a5302181	295	snd_soc_dapm_sync(codec);
a1eb4b3c LG	296	return 0;
	297	}
	298
a1eb4b3c LG	299	/* corgi digital audio interface glue - connects codec <--> CPU */
	300	static struct snd_soc_dai_link corgi_dai = {
	301	.name = "WM8731",
	302	.stream_name = "WM8731",
	303	.cpu_dai = &pxa_i2s_dai,
	304	.codec_dai = &wm8731_dai,
	305	.init = corgi_wm8731_init,
d928b25a	306	.ops = &corgi_ops,
a1eb4b3c LG	307	};
	308
	309	/* corgi audio machine driver */
87506549	310	static struct snd_soc_card snd_soc_corgi = {
a1eb4b3c	311	.name = "Corgi",
87689d56	312	.platform = &pxa2xx_soc_platform,
a1eb4b3c LG	313	.dai_link = &corgi_dai,
a1eb4b3c LG	314	.num_links = 1,
a1eb4b3c LG	315	};
a1eb4b3c LG	316
a1eb4b3c LG	317	/* corgi audio subsystem */
a1eb4b3c LG	318	static struct snd_soc_device corgi_snd_devdata = {
87506549	319	.card = &snd_soc_corgi,
a1eb4b3c	320	.codec_dev = &soc_codec_dev_wm8731,
a1eb4b3c LG	321	};
a1eb4b3c LG	322
5998102b MB	323	/*
	324	* FIXME: This is a temporary bodge to avoid cross-tree merge issues.
	325	* New drivers should register the wm8731 I2C device in the machine
	326	* setup code (under arch/arm for ARM systems).
	327	*/
	328	static int wm8731_i2c_register(void)
	329	{
	330	struct i2c_board_info info;
	331	struct i2c_adapter *adapter;
	332	struct i2c_client *client;
	333
	334	memset(&info, 0, sizeof(struct i2c_board_info));
	335	info.addr = 0x1b;
	336	strlcpy(info.type, "wm8731", I2C_NAME_SIZE);
	337
	338	adapter = i2c_get_adapter(0);
	339	if (!adapter) {
	340	printk(KERN_ERR "can't get i2c adapter 0\n");
	341	return -ENODEV;
	342	}
	343
	344	client = i2c_new_device(adapter, &info);
	345	i2c_put_adapter(adapter);
	346	if (!client) {
	347	printk(KERN_ERR "can't add i2c device at 0x%x\n",
	348	(unsigned int)info.addr);
	349	return -ENODEV;
	350	}
	351
	352	return 0;
	353	}
	354
a1eb4b3c LG	355	static struct platform_device *corgi_snd_device;
	356
	357	static int __init corgi_init(void)
	358	{
	359	int ret;
	360
1bfcd361 MB	361	if (!(machine_is_corgi() \|\| machine_is_shepherd() \|\|
1bfcd361 MB	362	machine_is_husky()))
a1eb4b3c LG	363	return -ENODEV;
a1eb4b3c LG	364
fc996757	365	ret = wm8731_i2c_register();
5998102b MB	366	if (ret != 0)
	367	return ret;
	368
a1eb4b3c LG	369	corgi_snd_device = platform_device_alloc("soc-audio", -1);
	370	if (!corgi_snd_device)
	371	return -ENOMEM;
	372
	373	platform_set_drvdata(corgi_snd_device, &corgi_snd_devdata);
	374	corgi_snd_devdata.dev = &corgi_snd_device->dev;
	375	ret = platform_device_add(corgi_snd_device);
	376
	377	if (ret)
	378	platform_device_put(corgi_snd_device);
	379
	380	return ret;
	381	}
	382
	383	static void __exit corgi_exit(void)
	384	{
	385	platform_device_unregister(corgi_snd_device);
	386	}
	387
	388	module_init(corgi_init);
	389	module_exit(corgi_exit);
	390
	391	/* Module information */
	392	MODULE_AUTHOR("Richard Purdie");
	393	MODULE_DESCRIPTION("ALSA SoC Corgi");
	394	MODULE_LICENSE("GPL");