[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 <liam.girdwood@wolfsonmicro.com>
 *          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.
 *
 *  Revision history
 *    30th Nov 2005   Initial version.
 *
 */

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

#include <asm/mach-types.h>
#include <asm/hardware/scoop.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/hardware.h>
#include <asm/arch/corgi.h>
#include <asm/arch/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)
{
	int spk = 0, mic = 0, line = 0, hp = 0, hs = 0;

	/* set up jack connection */
	switch (corgi_jack_func) {
	case CORGI_HP:
		hp = 1;
		/* set = unmute headphone */
		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
		break;
	case CORGI_MIC:
		mic = 1;
		/* reset = mute headphone */
		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
		break;
	case CORGI_LINE:
		line = 1;
		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
		break;
	case CORGI_HEADSET:
		hs = 1;
		mic = 1;
		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
		break;
	}

	if (corgi_spk_func == CORGI_SPK_ON)
		spk = 1;

	/* set the enpoints to their new connetion states */
	snd_soc_dapm_set_endpoint(codec, "Ext Spk", spk);
	snd_soc_dapm_set_endpoint(codec, "Mic Jack", mic);
	snd_soc_dapm_set_endpoint(codec, "Line Jack", line);
	snd_soc_dapm_set_endpoint(codec, "Headphone Jack", hp);
	snd_soc_dapm_set_endpoint(codec, "Headset Jack", hs);

	/* signal a DAPM event */
	snd_soc_dapm_sync_endpoints(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->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 int corgi_shutdown(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->socdev->codec;

	/* set = unmute headphone */
	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	return 0;
}

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_codec_dai *codec_dai = rtd->dai->codec_dai;
	struct snd_soc_cpu_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 = codec_dai->dai_ops.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 = cpu_dai->dai_ops.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 = codec_dai->dai_ops.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 = cpu_dai->dai_ops.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)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);
	else
		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);

	return 0;
}

static int corgi_mic_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);
	else
		reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);

	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 char *audio_map[][3] = {

	/* 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"},

	{NULL, NULL, NULL},
};

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 i, err;

	snd_soc_dapm_set_endpoint(codec, "LLINEIN", 0);
	snd_soc_dapm_set_endpoint(codec, "RLINEIN", 0);

	/* Add corgi specific controls */
	for (i = 0; i < ARRAY_SIZE(wm8731_corgi_controls); i++) {
		err = snd_ctl_add(codec->card,
			snd_soc_cnew(&wm8731_corgi_controls[i],codec, NULL));
		if (err < 0)
			return err;
	}

	/* Add corgi specific widgets */
	for(i = 0; i < ARRAY_SIZE(wm8731_dapm_widgets); i++) {
		snd_soc_dapm_new_control(codec, &wm8731_dapm_widgets[i]);
	}

	/* Set up corgi specific audio path audio_map */
	for(i = 0; audio_map[i][0] != NULL; i++) {
		snd_soc_dapm_connect_input(codec, audio_map[i][0],
			audio_map[i][1], audio_map[i][2]);
	}

	snd_soc_dapm_sync_endpoints(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_machine snd_soc_machine_corgi = {
	.name = "Corgi",
	.dai_link = &corgi_dai,
	.num_links = 1,
};

/* corgi audio private data */
static struct wm8731_setup_data corgi_wm8731_setup = {
	.i2c_address = 0x1b,
};

/* corgi audio subsystem */
static struct snd_soc_device corgi_snd_devdata = {
	.machine = &snd_soc_machine_corgi,
	.platform = &pxa2xx_soc_platform,
	.codec_dev = &soc_codec_dev_wm8731,
	.codec_data = &corgi_wm8731_setup,
};

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, &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	*
	7	* Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
	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	*
	15	* Revision history
	16	* 30th Nov 2005 Initial version.
	17	*
	18	*/
	19
	20	#include <linux/module.h>
	21	#include <linux/moduleparam.h>
	22	#include <linux/timer.h>
	23	#include <linux/interrupt.h>
	24	#include <linux/platform_device.h>
a1eb4b3c LG	25	#include <sound/core.h>
	26	#include <sound/pcm.h>
	27	#include <sound/soc.h>
	28	#include <sound/soc-dapm.h>
	29
	30	#include <asm/mach-types.h>
	31	#include <asm/hardware/scoop.h>
	32	#include <asm/arch/pxa-regs.h>
	33	#include <asm/arch/hardware.h>
	34	#include <asm/arch/corgi.h>
	35	#include <asm/arch/audio.h>
	36
	37	#include "../codecs/wm8731.h"
	38	#include "pxa2xx-pcm.h"
d928b25a	39	#include "pxa2xx-i2s.h"
a1eb4b3c LG	40
	41	#define CORGI_HP 0
	42	#define CORGI_MIC 1
	43	#define CORGI_LINE 2
	44	#define CORGI_HEADSET 3
	45	#define CORGI_HP_OFF 4
	46	#define CORGI_SPK_ON 0
	47	#define CORGI_SPK_OFF 1
	48
	49	/* audio clock in Hz - rounded from 12.235MHz */
	50	#define CORGI_AUDIO_CLOCK 12288000
	51
	52	static int corgi_jack_func;
	53	static int corgi_spk_func;
	54
	55	static void corgi_ext_control(struct snd_soc_codec *codec)
	56	{
	57	int spk = 0, mic = 0, line = 0, hp = 0, hs = 0;
	58
	59	/* set up jack connection */
	60	switch (corgi_jack_func) {
	61	case CORGI_HP:
	62	hp = 1;
	63	/* set = unmute headphone */
	64	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	65	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	66	break;
	67	case CORGI_MIC:
	68	mic = 1;
	69	/* reset = mute headphone */
	70	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	71	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	72	break;
	73	case CORGI_LINE:
	74	line = 1;
	75	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	76	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	77	break;
	78	case CORGI_HEADSET:
	79	hs = 1;
	80	mic = 1;
	81	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	82	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	83	break;
	84	}
	85
	86	if (corgi_spk_func == CORGI_SPK_ON)
	87	spk = 1;
	88
	89	/* set the enpoints to their new connetion states */
	90	snd_soc_dapm_set_endpoint(codec, "Ext Spk", spk);
	91	snd_soc_dapm_set_endpoint(codec, "Mic Jack", mic);
	92	snd_soc_dapm_set_endpoint(codec, "Line Jack", line);
	93	snd_soc_dapm_set_endpoint(codec, "Headphone Jack", hp);
	94	snd_soc_dapm_set_endpoint(codec, "Headset Jack", hs);
	95
	96	/* signal a DAPM event */
	97	snd_soc_dapm_sync_endpoints(codec);
	98	}
	99
	100	static int corgi_startup(struct snd_pcm_substream *substream)
	101	{
	102	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	103	struct snd_soc_codec *codec = rtd->socdev->codec;
104
105	/* check the jack status at stream startup */
106	corgi_ext_control(codec);
107	return 0;
108	}
109
110	/* we need to unmute the HP at shutdown as the mute burns power on corgi */
111	static int corgi_shutdown(struct snd_pcm_substream *substream)
112	{
113	struct snd_soc_pcm_runtime *rtd = substream->private_data;
114	struct snd_soc_codec *codec = rtd->socdev->codec;
115
116	/* set = unmute headphone */
117	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
118	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
119	return 0;
120	}
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;
	126	struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
	127	struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
	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 */
	146	ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	147	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	148	if (ret < 0)
	149	return ret;
	150
	151	/* set cpu DAI configuration */
	152	ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	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 */
	158	ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8731_SYSCLK, clk,
	159	SND_SOC_CLOCK_IN);
	160	if (ret < 0)
	161	return ret;
	162
	163	/* set the I2S system clock as input (unused) */
	164	ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
	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 LG	220	{
	221	if (SND_SOC_DAPM_EVENT_ON(event))
	222	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);
	223	else
	224	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);
	225
	226	return 0;
	227	}
	228
338c7ed0 JN	229	static int corgi_mic_event(struct snd_soc_dapm_widget *w,
338c7ed0 JN	230	struct snd_kcontrol *k, int event)
a1eb4b3c LG	231	{
	232	if (SND_SOC_DAPM_EVENT_ON(event))
	233	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);
	234	else
	235	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);
	236
	237	return 0;
	238	}
	239
	240	/* corgi machine dapm widgets */
	241	static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
	242	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	243	SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event),
	244	SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event),
	245	SND_SOC_DAPM_LINE("Line Jack", NULL),
	246	SND_SOC_DAPM_HP("Headset Jack", NULL),
	247	};
	248
	249	/* Corgi machine audio map (connections to the codec pins) */
	250	static const char *audio_map[][3] = {
	251
	252	/* headset Jack - in = micin, out = LHPOUT*/
	253	{"Headset Jack", NULL, "LHPOUT"},
	254
	255	/* headphone connected to LHPOUT1, RHPOUT1 */
	256	{"Headphone Jack", NULL, "LHPOUT"},
	257	{"Headphone Jack", NULL, "RHPOUT"},
	258
	259	/* speaker connected to LOUT, ROUT */
	260	{"Ext Spk", NULL, "ROUT"},
	261	{"Ext Spk", NULL, "LOUT"},
	262
	263	/* mic is connected to MICIN (via right channel of headphone jack) */
	264	{"MICIN", NULL, "Mic Jack"},
	265
	266	/* Same as the above but no mic bias for line signals */
	267	{"MICIN", NULL, "Line Jack"},
	268
	269	{NULL, NULL, NULL},
	270	};
	271
	272	static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	273	"Off"};
	274	static const char *spk_function[] = {"On", "Off"};
	275	static const struct soc_enum corgi_enum[] = {
	276	SOC_ENUM_SINGLE_EXT(5, jack_function),
	277	SOC_ENUM_SINGLE_EXT(2, spk_function),
	278	};
	279
	280	static const struct snd_kcontrol_new wm8731_corgi_controls[] = {
	281	SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack,
	282	corgi_set_jack),
	283	SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk,
	284	corgi_set_spk),
	285	};
	286
	287	/*
	288	* Logic for a wm8731 as connected on a Sharp SL-C7x0 Device
	289	*/
	290	static int corgi_wm8731_init(struct snd_soc_codec *codec)
	291	{
	292	int i, err;
	293
	294	snd_soc_dapm_set_endpoint(codec, "LLINEIN", 0);
295	snd_soc_dapm_set_endpoint(codec, "RLINEIN", 0);
296
297	/* Add corgi specific controls */
298	for (i = 0; i < ARRAY_SIZE(wm8731_corgi_controls); i++) {
299	err = snd_ctl_add(codec->card,
300	snd_soc_cnew(&wm8731_corgi_controls[i],codec, NULL));
301	if (err < 0)
302	return err;
303	}
304
305	/* Add corgi specific widgets */
306	for(i = 0; i < ARRAY_SIZE(wm8731_dapm_widgets); i++) {
307	snd_soc_dapm_new_control(codec, &wm8731_dapm_widgets[i]);
308	}
309
310	/* Set up corgi specific audio path audio_map */
311	for(i = 0; audio_map[i][0] != NULL; i++) {
312	snd_soc_dapm_connect_input(codec, audio_map[i][0],
313	audio_map[i][1], audio_map[i][2]);
314	}
315
316	snd_soc_dapm_sync_endpoints(codec);
317	return 0;
318	}
319
a1eb4b3c LG	320	/* corgi digital audio interface glue - connects codec <--> CPU */
	321	static struct snd_soc_dai_link corgi_dai = {
	322	.name = "WM8731",
	323	.stream_name = "WM8731",
	324	.cpu_dai = &pxa_i2s_dai,
	325	.codec_dai = &wm8731_dai,
	326	.init = corgi_wm8731_init,
d928b25a	327	.ops = &corgi_ops,
a1eb4b3c LG	328	};
	329
	330	/* corgi audio machine driver */
	331	static struct snd_soc_machine snd_soc_machine_corgi = {
	332	.name = "Corgi",
	333	.dai_link = &corgi_dai,
	334	.num_links = 1,
a1eb4b3c LG	335	};
	336
	337	/* corgi audio private data */
	338	static struct wm8731_setup_data corgi_wm8731_setup = {
	339	.i2c_address = 0x1b,
	340	};
	341
	342	/* corgi audio subsystem */
	343	static struct snd_soc_device corgi_snd_devdata = {
	344	.machine = &snd_soc_machine_corgi,
	345	.platform = &pxa2xx_soc_platform,
	346	.codec_dev = &soc_codec_dev_wm8731,
	347	.codec_data = &corgi_wm8731_setup,
	348	};
	349
	350	static struct platform_device *corgi_snd_device;
	351
	352	static int __init corgi_init(void)
	353	{
	354	int ret;
	355
	356	if (!(machine_is_corgi() \|\| machine_is_shepherd() \|\| machine_is_husky()))
	357	return -ENODEV;
	358
	359	corgi_snd_device = platform_device_alloc("soc-audio", -1);
	360	if (!corgi_snd_device)
	361	return -ENOMEM;
	362
	363	platform_set_drvdata(corgi_snd_device, &corgi_snd_devdata);
	364	corgi_snd_devdata.dev = &corgi_snd_device->dev;
	365	ret = platform_device_add(corgi_snd_device);
	366
	367	if (ret)
	368	platform_device_put(corgi_snd_device);
	369
	370	return ret;
	371	}
	372
	373	static void __exit corgi_exit(void)
	374	{
	375	platform_device_unregister(corgi_snd_device);
	376	}
	377
	378	module_init(corgi_init);
	379	module_exit(corgi_exit);
	380
	381	/* Module information */
	382	MODULE_AUTHOR("Richard Purdie");
	383	MODULE_DESCRIPTION("ALSA SoC Corgi");
	384	MODULE_LICENSE("GPL");