[mirror_ubuntu-artful-kernel.git] / sound / soc / pxa / e800_wm9712.c

/*
 * e800-wm9712.c  --  SoC audio for e800
 *
 * Copyright 2007 (c) Ian Molton <spyro@f2s.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; version 2 ONLY.
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.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/audio.h>
#include <mach/eseries-gpio.h>

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

static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *kcontrol, int event)
{
	if (event & SND_SOC_DAPM_PRE_PMU)
		gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
	else if (event & SND_SOC_DAPM_POST_PMD)
		gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);

	return 0;
}

static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *kcontrol, int event)
{
	if (event & SND_SOC_DAPM_PRE_PMU)
		gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
	else if (event & SND_SOC_DAPM_POST_PMD)
		gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);

	return 0;
}

static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
	SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
			e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
			SND_SOC_DAPM_POST_PMD),
	SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
			e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
			SND_SOC_DAPM_POST_PMD),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Headphone Jack", NULL, "HPOUTR"},
	{"Headphone Jack", NULL, "Headphone Amp"},

	{"Speaker Amp", NULL, "MONOOUT"},
	{"Speaker", NULL, "Speaker Amp"},

	{"MIC1", NULL, "Mic (Internal1)"},
	{"MIC2", NULL, "Mic (Internal2)"},
};

static int e800_ac97_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;

	snd_soc_dapm_new_controls(codec, e800_dapm_widgets,
					ARRAY_SIZE(e800_dapm_widgets));

	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
	snd_soc_dapm_sync(codec);

	return 0;
}

static struct snd_soc_dai_link e800_dai[] = {
	{
		.name = "AC97",
		.stream_name = "AC97 HiFi",
		.cpu_dai_name = "pxa-ac97.0",
		.codec_dai_name = "wm9712-hifi",
		.platform_name = "pxa-pcm-audio",
		.codec_name = "wm9712-codec",
		.init = e800_ac97_init,
	},
	{
		.name = "AC97 Aux",
		.stream_name = "AC97 Aux",
		.cpu_dai_name = "pxa-ac97.1",
		.codec_dai_name ="wm9712-aux",
		.platform_name = "pxa-pcm-audio",
		.codec_name = "wm9712-codec",
	},
};

static struct snd_soc_card e800 = {
	.name = "Toshiba e800",
	.dai_link = e800_dai,
	.num_links = ARRAY_SIZE(e800_dai),
};

static struct platform_device *e800_snd_device;

static int __init e800_init(void)
{
	int ret;

	if (!machine_is_e800())
		return -ENODEV;

	ret = gpio_request(GPIO_E800_HP_AMP_OFF,  "Headphone amp");
	if (ret)
		return ret;

	ret = gpio_request(GPIO_E800_SPK_AMP_ON, "Speaker amp");
	if (ret)
		goto free_hp_amp_gpio;

	ret = gpio_direction_output(GPIO_E800_HP_AMP_OFF, 1);
	if (ret)
		goto free_spk_amp_gpio;

	ret = gpio_direction_output(GPIO_E800_SPK_AMP_ON, 1);
	if (ret)
		goto free_spk_amp_gpio;

	e800_snd_device = platform_device_alloc("soc-audio", -1);
	if (!e800_snd_device)
		return -ENOMEM;

	platform_set_drvdata(e800_snd_device, &e800);
	ret = platform_device_add(e800_snd_device);

	if (!ret)
		return 0;

/* Fail gracefully */
	platform_device_put(e800_snd_device);
free_spk_amp_gpio:
	gpio_free(GPIO_E800_SPK_AMP_ON);
free_hp_amp_gpio:
	gpio_free(GPIO_E800_HP_AMP_OFF);

	return ret;
}

static void __exit e800_exit(void)
{
	platform_device_unregister(e800_snd_device);
	gpio_free(GPIO_E800_SPK_AMP_ON);
	gpio_free(GPIO_E800_HP_AMP_OFF);
}

module_init(e800_init);
module_exit(e800_exit);

/* Module information */
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_DESCRIPTION("ALSA SoC driver for e800");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
ab40d4f1 IM	1	/*
	2	* e800-wm9712.c -- SoC audio for e800
	3	*
ab40d4f1 IM	4	* Copyright 2007 (c) Ian Molton <spyro@f2s.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; version 2 ONLY.
	9	*
	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/moduleparam.h>
0465c7aa	14	#include <linux/gpio.h>
ab40d4f1 IM	15
	16	#include <sound/core.h>
	17	#include <sound/pcm.h>
	18	#include <sound/soc.h>
	19	#include <sound/soc-dapm.h>
	20
c91cf25e	21	#include <asm/mach-types.h>
a09e64fb	22	#include <mach/audio.h>
0465c7aa IM	23	#include <mach/eseries-gpio.h>
0465c7aa IM	24
ab40d4f1	25	#include "../codecs/wm9712.h"
ab40d4f1 IM	26	#include "pxa2xx-ac97.h"
ab40d4f1 IM	27
0465c7aa IM	28	static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
	29	struct snd_kcontrol *kcontrol, int event)
	30	{
	31	if (event & SND_SOC_DAPM_PRE_PMU)
	32	gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
	33	else if (event & SND_SOC_DAPM_POST_PMD)
	34	gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);
ab40d4f1	35
0465c7aa IM	36	return 0;
	37	}
	38
	39	static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
	40	struct snd_kcontrol *kcontrol, int event)
ab40d4f1	41	{
0465c7aa IM	42	if (event & SND_SOC_DAPM_PRE_PMU)
	43	gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
	44	else if (event & SND_SOC_DAPM_POST_PMD)
	45	gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);
	46
	47	return 0;
	48	}
	49
	50	static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
	51	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	52	SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
	53	SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
	54	SND_SOC_DAPM_SPK("Speaker", NULL),
	55	SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	56	e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU \|
	57	SND_SOC_DAPM_POST_PMD),
	58	SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	59	e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU \|
	60	SND_SOC_DAPM_POST_PMD),
	61	};
	62
	63	static const struct snd_soc_dapm_route audio_map[] = {
	64	{"Headphone Jack", NULL, "HPOUTL"},
	65	{"Headphone Jack", NULL, "HPOUTR"},
	66	{"Headphone Jack", NULL, "Headphone Amp"},
	67
	68	{"Speaker Amp", NULL, "MONOOUT"},
	69	{"Speaker", NULL, "Speaker Amp"},
	70
	71	{"MIC1", NULL, "Mic (Internal1)"},
	72	{"MIC2", NULL, "Mic (Internal2)"},
	73	};
	74
f0fba2ad	75	static int e800_ac97_init(struct snd_soc_pcm_runtime *rtd)
0465c7aa	76	{
f0fba2ad LG	77	struct snd_soc_codec *codec = rtd->codec;
f0fba2ad LG	78
0465c7aa IM	79	snd_soc_dapm_new_controls(codec, e800_dapm_widgets,
	80	ARRAY_SIZE(e800_dapm_widgets));
	81
	82	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
	83	snd_soc_dapm_sync(codec);
	84
	85	return 0;
	86	}
	87
	88	static struct snd_soc_dai_link e800_dai[] = {
	89	{
	90	.name = "AC97",
	91	.stream_name = "AC97 HiFi",
f0fba2ad LG	92	.cpu_dai_name = "pxa-ac97.0",
	93	.codec_dai_name = "wm9712-hifi",
	94	.platform_name = "pxa-pcm-audio",
	95	.codec_name = "wm9712-codec",
0465c7aa IM	96	.init = e800_ac97_init,
	97	},
	98	{
	99	.name = "AC97 Aux",
	100	.stream_name = "AC97 Aux",
f0fba2ad LG	101	.cpu_dai_name = "pxa-ac97.1",
	102	.codec_dai_name ="wm9712-aux",
	103	.platform_name = "pxa-pcm-audio",
	104	.codec_name = "wm9712-codec",
0465c7aa	105	},
ab40d4f1 IM	106	};
ab40d4f1 IM	107
87506549	108	static struct snd_soc_card e800 = {
ab40d4f1 IM	109	.name = "Toshiba e800",
	110	.dai_link = e800_dai,
	111	.num_links = ARRAY_SIZE(e800_dai),
	112	};
	113
ab40d4f1 IM	114	static struct platform_device *e800_snd_device;
	115
	116	static int __init e800_init(void)
	117	{
	118	int ret;
	119
	120	if (!machine_is_e800())
	121	return -ENODEV;
	122
0465c7aa IM	123	ret = gpio_request(GPIO_E800_HP_AMP_OFF, "Headphone amp");
	124	if (ret)
	125	return ret;
	126
	127	ret = gpio_request(GPIO_E800_SPK_AMP_ON, "Speaker amp");
	128	if (ret)
	129	goto free_hp_amp_gpio;
	130
	131	ret = gpio_direction_output(GPIO_E800_HP_AMP_OFF, 1);
	132	if (ret)
	133	goto free_spk_amp_gpio;
	134
	135	ret = gpio_direction_output(GPIO_E800_SPK_AMP_ON, 1);
	136	if (ret)
	137	goto free_spk_amp_gpio;
	138
ab40d4f1 IM	139	e800_snd_device = platform_device_alloc("soc-audio", -1);
	140	if (!e800_snd_device)
	141	return -ENOMEM;
	142
f0fba2ad	143	platform_set_drvdata(e800_snd_device, &e800);
ab40d4f1 IM	144	ret = platform_device_add(e800_snd_device);
ab40d4f1 IM	145
0465c7aa IM	146	if (!ret)
	147	return 0;
	148
	149	/* Fail gracefully */
	150	platform_device_put(e800_snd_device);
	151	free_spk_amp_gpio:
	152	gpio_free(GPIO_E800_SPK_AMP_ON);
	153	free_hp_amp_gpio:
	154	gpio_free(GPIO_E800_HP_AMP_OFF);
ab40d4f1 IM	155
	156	return ret;
	157	}
	158
	159	static void __exit e800_exit(void)
	160	{
	161	platform_device_unregister(e800_snd_device);
0465c7aa IM	162	gpio_free(GPIO_E800_SPK_AMP_ON);
0465c7aa IM	163	gpio_free(GPIO_E800_HP_AMP_OFF);
ab40d4f1 IM	164	}
	165
	166	module_init(e800_init);
	167	module_exit(e800_exit);
	168
	169	/* Module information */
	170	MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
	171	MODULE_DESCRIPTION("ALSA SoC driver for e800");
0465c7aa	172	MODULE_LICENSE("GPL v2");