[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / soc / pxa / tosa.c

/*
 * tosa.c  --  SoC audio for Tosa
 *
 * 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.
 *
 * GPIO's
 *  1 - Jack Insertion
 *  5 - Hookswitch (headset answer/hang up switch)
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/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/tosa.h>
#include <mach/audio.h>

#include "../codecs/wm9712.h"
#include "pxa2xx-ac97.h"

#define TOSA_HP        0
#define TOSA_MIC_INT   1
#define TOSA_HEADSET   2
#define TOSA_HP_OFF    3
#define TOSA_SPK_ON    0
#define TOSA_SPK_OFF   1

static int tosa_jack_func;
static int tosa_spk_func;

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

	/* set up jack connection */
	switch (tosa_jack_func) {
	case TOSA_HP:
		snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
		snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		break;
	case TOSA_MIC_INT:
		snd_soc_dapm_enable_pin(dapm, "Mic (Internal)");
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin(dapm, "Headset Jack");
		break;
	case TOSA_HEADSET:
		snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
		snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_enable_pin(dapm, "Headset Jack");
		break;
	}

	if (tosa_spk_func == TOSA_SPK_ON)
		snd_soc_dapm_enable_pin(dapm, "Speaker");
	else
		snd_soc_dapm_disable_pin(dapm, "Speaker");

	snd_soc_dapm_sync(dapm);
}

static int tosa_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 */
	tosa_ext_control(codec);

	mutex_unlock(&codec->mutex);

	return 0;
}

static struct snd_soc_ops tosa_ops = {
	.startup = tosa_startup,
};

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

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

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

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

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

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

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

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

/* tosa dapm event handlers */
static int tosa_hp_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
{
	gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
	return 0;
}

/* tosa machine dapm widgets */
static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
SND_SOC_DAPM_HP("Headset Jack", NULL),
SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
};

/* tosa audio map */
static const struct snd_soc_dapm_route audio_map[] = {

	/* headphone connected to HPOUTL, HPOUTR */
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Headphone Jack", NULL, "HPOUTR"},

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

	/* internal mic is connected to mic1, mic2 differential - with bias */
	{"MIC1", NULL, "Mic Bias"},
	{"MIC2", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Mic (Internal)"},

	/* headset is connected to HPOUTR, and LINEINR with bias */
	{"Headset Jack", NULL, "HPOUTR"},
	{"LINEINR", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Headset Jack"},
};

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

static const struct snd_kcontrol_new tosa_controls[] = {
	SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
		tosa_set_jack),
	SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
		tosa_set_spk),
};

static int tosa_ac97_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, "OUT3");
	snd_soc_dapm_nc_pin(dapm, "MONOOUT");

	/* add tosa specific controls */
	err = snd_soc_add_codec_controls(codec, tosa_controls,
				ARRAY_SIZE(tosa_controls));
	if (err < 0)
		return err;

	/* add tosa specific widgets */
	snd_soc_dapm_new_controls(dapm, tosa_dapm_widgets,
				  ARRAY_SIZE(tosa_dapm_widgets));

	/* set up tosa specific audio path audio_map */
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	return 0;
}

static struct snd_soc_dai_link tosa_dai[] = {
{
	.name = "AC97",
	.stream_name = "AC97 HiFi",
	.cpu_dai_name = "pxa2xx-ac97",
	.codec_dai_name = "wm9712-hifi",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "wm9712-codec",
	.init = tosa_ac97_init,
	.ops = &tosa_ops,
},
{
	.name = "AC97 Aux",
	.stream_name = "AC97 Aux",
	.cpu_dai_name = "pxa2xx-ac97-aux",
	.codec_dai_name = "wm9712-aux",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "wm9712-codec",
	.ops = &tosa_ops,
},
};

static struct snd_soc_card tosa = {
	.name = "Tosa",
	.owner = THIS_MODULE,
	.dai_link = tosa_dai,
	.num_links = ARRAY_SIZE(tosa_dai),
};

static int tosa_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &tosa;
	int ret;

	ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW,
			       "Headphone Jack");
	if (ret)
		return ret;

	card->dev = &pdev->dev;

	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
			ret);
		gpio_free(TOSA_GPIO_L_MUTE);
	}
	return ret;
}

static int tosa_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);

	gpio_free(TOSA_GPIO_L_MUTE);
	snd_soc_unregister_card(card);
	return 0;
}

static struct platform_driver tosa_driver = {
	.driver		= {
		.name	= "tosa-audio",
		.owner	= THIS_MODULE,
	},
	.probe		= tosa_probe,
	.remove		= tosa_remove,
};

module_platform_driver(tosa_driver);

/* Module information */
MODULE_AUTHOR("Richard Purdie");
MODULE_DESCRIPTION("ALSA SoC Tosa");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:tosa-audio");
Commit	Line	Data
1b49cb98 LG	1	/*
	2	* tosa.c -- SoC audio for Tosa
	3	*
	4	* Copyright 2005 Wolfson Microelectronics PLC.
	5	* Copyright 2005 Openedhand Ltd.
	6	*
d331124d	7	* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
1b49cb98 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	*
1b49cb98 LG	15	* GPIO's
	16	* 1 - Jack Insertion
	17	* 5 - Hookswitch (headset answer/hang up switch)
	18	*
	19	*/
	20
	21	#include <linux/module.h>
	22	#include <linux/moduleparam.h>
	23	#include <linux/device.h>
4440cbd6	24	#include <linux/gpio.h>
1b49cb98	25
1b49cb98 LG	26	#include <sound/core.h>
	27	#include <sound/pcm.h>
	28	#include <sound/soc.h>
1b49cb98 LG	29
1b49cb98 LG	30	#include <asm/mach-types.h>
a09e64fb	31	#include <mach/tosa.h>
a09e64fb	32	#include <mach/audio.h>
1b49cb98 LG	33
1b49cb98 LG	34	#include "../codecs/wm9712.h"
cb4c048b	35	#include "pxa2xx-ac97.h"
1b49cb98	36
1b49cb98 LG	37	#define TOSA_HP 0
	38	#define TOSA_MIC_INT 1
	39	#define TOSA_HEADSET 2
	40	#define TOSA_HP_OFF 3
	41	#define TOSA_SPK_ON 0
	42	#define TOSA_SPK_OFF 1
	43
	44	static int tosa_jack_func;
	45	static int tosa_spk_func;
	46
	47	static void tosa_ext_control(struct snd_soc_codec *codec)
	48	{
ce6120cc LG	49	struct snd_soc_dapm_context *dapm = &codec->dapm;
ce6120cc LG	50
1b49cb98 LG	51	/* set up jack connection */
	52	switch (tosa_jack_func) {
	53	case TOSA_HP:
ce6120cc LG	54	snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
	55	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	56	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
1b49cb98 LG	57	break;
1b49cb98 LG	58	case TOSA_MIC_INT:
ce6120cc LG	59	snd_soc_dapm_enable_pin(dapm, "Mic (Internal)");
	60	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	61	snd_soc_dapm_disable_pin(dapm, "Headset Jack");
1b49cb98 LG	62	break;
1b49cb98 LG	63	case TOSA_HEADSET:
ce6120cc LG	64	snd_soc_dapm_disable_pin(dapm, "Mic (Internal)");
	65	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
	66	snd_soc_dapm_enable_pin(dapm, "Headset Jack");
1b49cb98 LG	67	break;
	68	}
	69
	70	if (tosa_spk_func == TOSA_SPK_ON)
ce6120cc	71	snd_soc_dapm_enable_pin(dapm, "Speaker");
a5302181	72	else
ce6120cc	73	snd_soc_dapm_disable_pin(dapm, "Speaker");
1b49cb98	74
ce6120cc	75	snd_soc_dapm_sync(dapm);
1b49cb98 LG	76	}
	77
	78	static int tosa_startup(struct snd_pcm_substream *substream)
	79	{
	80	struct snd_soc_pcm_runtime *rtd = substream->private_data;
cb990622	81	struct snd_soc_codec *codec = rtd->codec;
1b49cb98	82
71a29560 MB	83	mutex_lock(&codec->mutex);
71a29560 MB	84
1b49cb98 LG	85	/* check the jack status at stream startup */
1b49cb98 LG	86	tosa_ext_control(codec);
71a29560 MB	87
	88	mutex_unlock(&codec->mutex);
	89
1b49cb98 LG	90	return 0;
	91	}
	92
	93	static struct snd_soc_ops tosa_ops = {
	94	.startup = tosa_startup,
	95	};
	96
	97	static int tosa_get_jack(struct snd_kcontrol *kcontrol,
	98	struct snd_ctl_elem_value *ucontrol)
	99	{
	100	ucontrol->value.integer.value[0] = tosa_jack_func;
	101	return 0;
	102	}
	103
	104	static int tosa_set_jack(struct snd_kcontrol *kcontrol,
	105	struct snd_ctl_elem_value *ucontrol)
	106	{
	107	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	108
	109	if (tosa_jack_func == ucontrol->value.integer.value[0])
	110	return 0;
	111
	112	tosa_jack_func = ucontrol->value.integer.value[0];
	113	tosa_ext_control(codec);
	114	return 1;
	115	}
	116
	117	static int tosa_get_spk(struct snd_kcontrol *kcontrol,
	118	struct snd_ctl_elem_value *ucontrol)
	119	{
	120	ucontrol->value.integer.value[0] = tosa_spk_func;
	121	return 0;
	122	}
	123
	124	static int tosa_set_spk(struct snd_kcontrol *kcontrol,
	125	struct snd_ctl_elem_value *ucontrol)
	126	{
	127	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	128
	129	if (tosa_spk_func == ucontrol->value.integer.value[0])
	130	return 0;
	131
	132	tosa_spk_func = ucontrol->value.integer.value[0];
	133	tosa_ext_control(codec);
	134	return 1;
	135	}
	136
	137	/* tosa dapm event handlers */
338c7ed0 JN	138	static int tosa_hp_event(struct snd_soc_dapm_widget *w,
338c7ed0 JN	139	struct snd_kcontrol *k, int event)
1b49cb98	140	{
4440cbd6	141	gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
1b49cb98 LG	142	return 0;
	143	}
	144
	145	/* tosa machine dapm widgets */
	146	static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
	147	SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
	148	SND_SOC_DAPM_HP("Headset Jack", NULL),
	149	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	150	SND_SOC_DAPM_SPK("Speaker", NULL),
	151	};
	152
	153	/* tosa audio map */
76d39d0a	154	static const struct snd_soc_dapm_route audio_map[] = {
1b49cb98 LG	155
	156	/* headphone connected to HPOUTL, HPOUTR */
	157	{"Headphone Jack", NULL, "HPOUTL"},
	158	{"Headphone Jack", NULL, "HPOUTR"},
	159
	160	/* ext speaker connected to LOUT2, ROUT2 */
	161	{"Speaker", NULL, "LOUT2"},
	162	{"Speaker", NULL, "ROUT2"},
	163
	164	/* internal mic is connected to mic1, mic2 differential - with bias */
	165	{"MIC1", NULL, "Mic Bias"},
	166	{"MIC2", NULL, "Mic Bias"},
	167	{"Mic Bias", NULL, "Mic (Internal)"},
	168
	169	/* headset is connected to HPOUTR, and LINEINR with bias */
	170	{"Headset Jack", NULL, "HPOUTR"},
	171	{"LINEINR", NULL, "Mic Bias"},
	172	{"Mic Bias", NULL, "Headset Jack"},
1b49cb98 LG	173	};
	174
	175	static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	176	"Off"};
	177	static const char *spk_function[] = {"On", "Off"};
	178	static const struct soc_enum tosa_enum[] = {
	179	SOC_ENUM_SINGLE_EXT(5, jack_function),
	180	SOC_ENUM_SINGLE_EXT(2, spk_function),
	181	};
	182
	183	static const struct snd_kcontrol_new tosa_controls[] = {
	184	SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
	185	tosa_set_jack),
	186	SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
	187	tosa_set_spk),
	188	};
	189
f0fba2ad	190	static int tosa_ac97_init(struct snd_soc_pcm_runtime *rtd)
1b49cb98	191	{
f0fba2ad	192	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	193	struct snd_soc_dapm_context *dapm = &codec->dapm;
eb5f6d75	194	int err;
1b49cb98	195
ce6120cc LG	196	snd_soc_dapm_nc_pin(dapm, "OUT3");
ce6120cc LG	197	snd_soc_dapm_nc_pin(dapm, "MONOOUT");
1b49cb98 LG	198
1b49cb98 LG	199	/* add tosa specific controls */
022658be	200	err = snd_soc_add_codec_controls(codec, tosa_controls,
eb5f6d75 PZ	201	ARRAY_SIZE(tosa_controls));
	202	if (err < 0)
	203	return err;
1b49cb98 LG	204
1b49cb98 LG	205	/* add tosa specific widgets */
ce6120cc	206	snd_soc_dapm_new_controls(dapm, tosa_dapm_widgets,
25191c45	207	ARRAY_SIZE(tosa_dapm_widgets));
1b49cb98 LG	208
1b49cb98 LG	209	/* set up tosa specific audio path audio_map */
ce6120cc	210	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
1b49cb98	211
1b49cb98 LG	212	return 0;
	213	}
	214
	215	static struct snd_soc_dai_link tosa_dai[] = {
	216	{
	217	.name = "AC97",
	218	.stream_name = "AC97 HiFi",
4bfc4e25	219	.cpu_dai_name = "pxa2xx-ac97",
f0fba2ad LG	220	.codec_dai_name = "wm9712-hifi",
	221	.platform_name = "pxa-pcm-audio",
	222	.codec_name = "wm9712-codec",
1b49cb98	223	.init = tosa_ac97_init,
cb4c048b	224	.ops = &tosa_ops,
1b49cb98 LG	225	},
	226	{
	227	.name = "AC97 Aux",
	228	.stream_name = "AC97 Aux",
4bfc4e25	229	.cpu_dai_name = "pxa2xx-ac97-aux",
f0fba2ad LG	230	.codec_dai_name = "wm9712-aux",
	231	.platform_name = "pxa-pcm-audio",
	232	.codec_name = "wm9712-codec",
cb4c048b	233	.ops = &tosa_ops,
1b49cb98 LG	234	},
	235	};
	236
87506549	237	static struct snd_soc_card tosa = {
1b49cb98	238	.name = "Tosa",
561c6a17	239	.owner = THIS_MODULE,
1b49cb98 LG	240	.dai_link = tosa_dai,
1b49cb98 LG	241	.num_links = ARRAY_SIZE(tosa_dai),
1b49cb98 LG	242	};
1b49cb98 LG	243
570f6fe1	244	static int tosa_probe(struct platform_device *pdev)
1b49cb98	245	{
f285b8c8	246	struct snd_soc_card *card = &tosa;
1b49cb98 LG	247	int ret;
1b49cb98 LG	248
f285b8c8 AL	249	ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW,
	250	"Headphone Jack");
	251	if (ret)
	252	return ret;
4440cbd6	253
f285b8c8	254	card->dev = &pdev->dev;
4440cbd6	255
f285b8c8 AL	256	ret = snd_soc_register_card(card);
	257	if (ret) {
	258	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	259	ret);
	260	gpio_free(TOSA_GPIO_L_MUTE);
	261	}
1b49cb98 LG	262	return ret;
	263	}
	264
570f6fe1	265	static int tosa_remove(struct platform_device *pdev)
1b49cb98	266	{
f285b8c8 AL	267	struct snd_soc_card *card = platform_get_drvdata(pdev);
	268
	269	gpio_free(TOSA_GPIO_L_MUTE);
	270	snd_soc_unregister_card(card);
	271	return 0;
1b49cb98 LG	272	}
1b49cb98 LG	273
f285b8c8 AL	274	static struct platform_driver tosa_driver = {
	275	.driver = {
	276	.name = "tosa-audio",
	277	.owner = THIS_MODULE,
	278	},
	279	.probe = tosa_probe,
570f6fe1	280	.remove = tosa_remove,
f285b8c8 AL	281	};
	282
	283	module_platform_driver(tosa_driver);
1b49cb98 LG	284
	285	/* Module information */
	286	MODULE_AUTHOR("Richard Purdie");
	287	MODULE_DESCRIPTION("ALSA SoC Tosa");
	288	MODULE_LICENSE("GPL");
f285b8c8	289	MODULE_ALIAS("platform:tosa-audio");