[GitHub/mt8127/android_kernel_alcatel_ttab.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.
 */

#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 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 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 */
	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_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.
a1eb4b3c LG	14	*/
	15
	16	#include <linux/module.h>
	17	#include <linux/moduleparam.h>
	18	#include <linux/timer.h>
	19	#include <linux/interrupt.h>
	20	#include <linux/platform_device.h>
a1eb4b3c LG	21	#include <sound/core.h>
	22	#include <sound/pcm.h>
	23	#include <sound/soc.h>
	24	#include <sound/soc-dapm.h>
	25
	26	#include <asm/mach-types.h>
	27	#include <asm/hardware/scoop.h>
	28	#include <asm/arch/pxa-regs.h>
	29	#include <asm/arch/hardware.h>
	30	#include <asm/arch/corgi.h>
	31	#include <asm/arch/audio.h>
	32
	33	#include "../codecs/wm8731.h"
	34	#include "pxa2xx-pcm.h"
d928b25a	35	#include "pxa2xx-i2s.h"
a1eb4b3c LG	36
	37	#define CORGI_HP 0
	38	#define CORGI_MIC 1
	39	#define CORGI_LINE 2
	40	#define CORGI_HEADSET 3
	41	#define CORGI_HP_OFF 4
	42	#define CORGI_SPK_ON 0
	43	#define CORGI_SPK_OFF 1
	44
	45	/* audio clock in Hz - rounded from 12.235MHz */
	46	#define CORGI_AUDIO_CLOCK 12288000
	47
	48	static int corgi_jack_func;
	49	static int corgi_spk_func;
	50
	51	static void corgi_ext_control(struct snd_soc_codec *codec)
	52	{
	53	int spk = 0, mic = 0, line = 0, hp = 0, hs = 0;
	54
	55	/* set up jack connection */
	56	switch (corgi_jack_func) {
	57	case CORGI_HP:
	58	hp = 1;
	59	/* set = unmute headphone */
	60	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	61	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	62	break;
	63	case CORGI_MIC:
	64	mic = 1;
	65	/* reset = mute headphone */
	66	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	67	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	68	break;
	69	case CORGI_LINE:
	70	line = 1;
	71	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	72	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	73	break;
	74	case CORGI_HEADSET:
	75	hs = 1;
	76	mic = 1;
	77	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
	78	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
	79	break;
	80	}
	81
	82	if (corgi_spk_func == CORGI_SPK_ON)
	83	spk = 1;
	84
	85	/* set the enpoints to their new connetion states */
	86	snd_soc_dapm_set_endpoint(codec, "Ext Spk", spk);
	87	snd_soc_dapm_set_endpoint(codec, "Mic Jack", mic);
	88	snd_soc_dapm_set_endpoint(codec, "Line Jack", line);
	89	snd_soc_dapm_set_endpoint(codec, "Headphone Jack", hp);
	90	snd_soc_dapm_set_endpoint(codec, "Headset Jack", hs);
	91
	92	/* signal a DAPM event */
	93	snd_soc_dapm_sync_endpoints(codec);
	94	}
	95
	96	static int corgi_startup(struct snd_pcm_substream *substream)
	97	{
	98	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	99	struct snd_soc_codec *codec = rtd->socdev->codec;
100
101	/* check the jack status at stream startup */
102	corgi_ext_control(codec);
103	return 0;
104	}
105
106	/* we need to unmute the HP at shutdown as the mute burns power on corgi */
107	static int corgi_shutdown(struct snd_pcm_substream *substream)
108	{
109	struct snd_soc_pcm_runtime *rtd = substream->private_data;
110	struct snd_soc_codec *codec = rtd->socdev->codec;
111
112	/* set = unmute headphone */
113	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_L);
114	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MUTE_R);
115	return 0;
116	}
117
d928b25a LG	118	static int corgi_hw_params(struct snd_pcm_substream *substream,
	119	struct snd_pcm_hw_params *params)
	120	{
	121	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	122	struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
	123	struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
	124	unsigned int clk = 0;
	125	int ret = 0;
	126
	127	switch (params_rate(params)) {
	128	case 8000:
	129	case 16000:
	130	case 48000:
	131	case 96000:
	132	clk = 12288000;
	133	break;
	134	case 11025:
	135	case 22050:
	136	case 44100:
	137	clk = 11289600;
	138	break;
	139	}
	140
	141	/* set codec DAI configuration */
	142	ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	143	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	144	if (ret < 0)
	145	return ret;
	146
	147	/* set cpu DAI configuration */
	148	ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	149	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	150	if (ret < 0)
	151	return ret;
	152
	153	/* set the codec system clock for DAC and ADC */
	154	ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8731_SYSCLK, clk,
	155	SND_SOC_CLOCK_IN);
	156	if (ret < 0)
	157	return ret;
	158
	159	/* set the I2S system clock as input (unused) */
	160	ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
	161	SND_SOC_CLOCK_IN);
	162	if (ret < 0)
	163	return ret;
	164
	165	return 0;
	166	}
	167
a1eb4b3c LG	168	static struct snd_soc_ops corgi_ops = {
a1eb4b3c LG	169	.startup = corgi_startup,
d928b25a	170	.hw_params = corgi_hw_params,
a1eb4b3c LG	171	.shutdown = corgi_shutdown,
	172	};
	173
	174	static int corgi_get_jack(struct snd_kcontrol *kcontrol,
	175	struct snd_ctl_elem_value *ucontrol)
	176	{
	177	ucontrol->value.integer.value[0] = corgi_jack_func;
	178	return 0;
	179	}
	180
	181	static int corgi_set_jack(struct snd_kcontrol *kcontrol,
	182	struct snd_ctl_elem_value *ucontrol)
	183	{
	184	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	185
	186	if (corgi_jack_func == ucontrol->value.integer.value[0])
	187	return 0;
	188
	189	corgi_jack_func = ucontrol->value.integer.value[0];
	190	corgi_ext_control(codec);
	191	return 1;
	192	}
	193
	194	static int corgi_get_spk(struct snd_kcontrol *kcontrol,
	195	struct snd_ctl_elem_value *ucontrol)
	196	{
	197	ucontrol->value.integer.value[0] = corgi_spk_func;
	198	return 0;
	199	}
	200
	201	static int corgi_set_spk(struct snd_kcontrol *kcontrol,
	202	struct snd_ctl_elem_value *ucontrol)
	203	{
	204	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	205
	206	if (corgi_spk_func == ucontrol->value.integer.value[0])
	207	return 0;
	208
	209	corgi_spk_func = ucontrol->value.integer.value[0];
	210	corgi_ext_control(codec);
	211	return 1;
	212	}
	213
338c7ed0 JN	214	static int corgi_amp_event(struct snd_soc_dapm_widget *w,
338c7ed0 JN	215	struct snd_kcontrol *k, int event)
a1eb4b3c LG	216	{
	217	if (SND_SOC_DAPM_EVENT_ON(event))
	218	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);
	219	else
	220	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_APM_ON);
	221
	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 LG	227	{
	228	if (SND_SOC_DAPM_EVENT_ON(event))
	229	set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);
	230	else
	231	reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_MIC_BIAS);
	232
	233	return 0;
	234	}
	235
	236	/* corgi machine dapm widgets */
	237	static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = {
	238	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	239	SND_SOC_DAPM_MIC("Mic Jack", corgi_mic_event),
	240	SND_SOC_DAPM_SPK("Ext Spk", corgi_amp_event),
	241	SND_SOC_DAPM_LINE("Line Jack", NULL),
	242	SND_SOC_DAPM_HP("Headset Jack", NULL),
	243	};
	244
	245	/* Corgi machine audio map (connections to the codec pins) */
25191c45	246	static const struct snd_soc_dapm_route audio_map[] = {
a1eb4b3c LG	247
	248	/* headset Jack - in = micin, out = LHPOUT*/
	249	{"Headset Jack", NULL, "LHPOUT"},
	250
	251	/* headphone connected to LHPOUT1, RHPOUT1 */
	252	{"Headphone Jack", NULL, "LHPOUT"},
	253	{"Headphone Jack", NULL, "RHPOUT"},
	254
	255	/* speaker connected to LOUT, ROUT */
	256	{"Ext Spk", NULL, "ROUT"},
	257	{"Ext Spk", NULL, "LOUT"},
	258
	259	/* mic is connected to MICIN (via right channel of headphone jack) */
	260	{"MICIN", NULL, "Mic Jack"},
	261
	262	/* Same as the above but no mic bias for line signals */
	263	{"MICIN", NULL, "Line Jack"},
a1eb4b3c LG	264	};
	265
	266	static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	267	"Off"};
	268	static const char *spk_function[] = {"On", "Off"};
	269	static const struct soc_enum corgi_enum[] = {
	270	SOC_ENUM_SINGLE_EXT(5, jack_function),
	271	SOC_ENUM_SINGLE_EXT(2, spk_function),
	272	};
	273
	274	static const struct snd_kcontrol_new wm8731_corgi_controls[] = {
	275	SOC_ENUM_EXT("Jack Function", corgi_enum[0], corgi_get_jack,
	276	corgi_set_jack),
	277	SOC_ENUM_EXT("Speaker Function", corgi_enum[1], corgi_get_spk,
	278	corgi_set_spk),
	279	};
	280
	281	/*
	282	* Logic for a wm8731 as connected on a Sharp SL-C7x0 Device
	283	*/
	284	static int corgi_wm8731_init(struct snd_soc_codec *codec)
	285	{
	286	int i, err;
	287
	288	snd_soc_dapm_set_endpoint(codec, "LLINEIN", 0);
	289	snd_soc_dapm_set_endpoint(codec, "RLINEIN", 0);
	290
	291	/* Add corgi specific controls */
	292	for (i = 0; i < ARRAY_SIZE(wm8731_corgi_controls); i++) {
	293	err = snd_ctl_add(codec->card,
1bfcd361	294	snd_soc_cnew(&wm8731_corgi_controls[i], codec, NULL));
a1eb4b3c LG	295	if (err < 0)
	296	return err;
	297	}
	298
	299	/* Add corgi specific widgets */
25191c45 MB	300	snd_soc_dapm_new_controls(codec, wm8731_dapm_widgets,
25191c45 MB	301	ARRAY_SIZE(wm8731_dapm_widgets));
a1eb4b3c LG	302
a1eb4b3c LG	303	/* Set up corgi specific audio path audio_map */
25191c45	304	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
a1eb4b3c LG	305
	306	snd_soc_dapm_sync_endpoints(codec);
	307	return 0;
	308	}
	309
a1eb4b3c LG	310	/* corgi digital audio interface glue - connects codec <--> CPU */
	311	static struct snd_soc_dai_link corgi_dai = {
	312	.name = "WM8731",
	313	.stream_name = "WM8731",
	314	.cpu_dai = &pxa_i2s_dai,
	315	.codec_dai = &wm8731_dai,
	316	.init = corgi_wm8731_init,
d928b25a	317	.ops = &corgi_ops,
a1eb4b3c LG	318	};
	319
	320	/* corgi audio machine driver */
	321	static struct snd_soc_machine snd_soc_machine_corgi = {
	322	.name = "Corgi",
	323	.dai_link = &corgi_dai,
	324	.num_links = 1,
a1eb4b3c LG	325	};
	326
	327	/* corgi audio private data */
	328	static struct wm8731_setup_data corgi_wm8731_setup = {
	329	.i2c_address = 0x1b,
	330	};
	331
	332	/* corgi audio subsystem */
	333	static struct snd_soc_device corgi_snd_devdata = {
	334	.machine = &snd_soc_machine_corgi,
	335	.platform = &pxa2xx_soc_platform,
	336	.codec_dev = &soc_codec_dev_wm8731,
	337	.codec_data = &corgi_wm8731_setup,
	338	};
	339
	340	static struct platform_device *corgi_snd_device;
	341
	342	static int __init corgi_init(void)
	343	{
	344	int ret;
	345
1bfcd361 MB	346	if (!(machine_is_corgi() \|\| machine_is_shepherd() \|\|
1bfcd361 MB	347	machine_is_husky()))
a1eb4b3c LG	348	return -ENODEV;
	349
	350	corgi_snd_device = platform_device_alloc("soc-audio", -1);
	351	if (!corgi_snd_device)
	352	return -ENOMEM;
	353
	354	platform_set_drvdata(corgi_snd_device, &corgi_snd_devdata);
	355	corgi_snd_devdata.dev = &corgi_snd_device->dev;
	356	ret = platform_device_add(corgi_snd_device);
	357
	358	if (ret)
	359	platform_device_put(corgi_snd_device);
	360
	361	return ret;
	362	}
	363
	364	static void __exit corgi_exit(void)
	365	{
	366	platform_device_unregister(corgi_snd_device);
	367	}
	368
	369	module_init(corgi_init);
	370	module_exit(corgi_exit);
	371
	372	/* Module information */
	373	MODULE_AUTHOR("Richard Purdie");
	374	MODULE_DESCRIPTION("ALSA SoC Corgi");
	375	MODULE_LICENSE("GPL");