[deliverable/linux.git] / sound / soc / pxa / e750_wm9705.c

/*
 * e750-wm9705.c  --  SoC audio for e750
 *
 * 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 <mach/audio.h>
#include <mach/eseries-gpio.h>

#include <asm/mach-types.h>

#include "../codecs/wm9705.h"
#include "pxa2xx-ac97.h"

static int e750_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_E750_SPK_AMP_OFF, 0);
	else if (event & SND_SOC_DAPM_POST_PMD)
		gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1);

	return 0;
}

static int e750_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_E750_HP_AMP_OFF, 0);
	else if (event & SND_SOC_DAPM_POST_PMD)
		gpio_set_value(GPIO_E750_HP_AMP_OFF, 1);

	return 0;
}

static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
			e750_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,
			e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
			SND_SOC_DAPM_POST_PMD),
};

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

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

	{"MIC1", NULL, "Mic (Internal)"},
};

static struct snd_soc_dai_link e750_dai[] = {
	{
		.name = "AC97",
		.stream_name = "AC97 HiFi",
		.cpu_dai_name = "pxa2xx-ac97",
		.codec_dai_name = "wm9705-hifi",
		.platform_name = "pxa-pcm-audio",
		.codec_name = "wm9705-codec",
		/* use ops to check startup state */
	},
	{
		.name = "AC97 Aux",
		.stream_name = "AC97 Aux",
		.cpu_dai_name = "pxa2xx-ac97-aux",
		.codec_dai_name ="wm9705-aux",
		.platform_name = "pxa-pcm-audio",
		.codec_name = "wm9705-codec",
	},
};

static struct snd_soc_card e750 = {
	.name = "Toshiba e750",
	.owner = THIS_MODULE,
	.dai_link = e750_dai,
	.num_links = ARRAY_SIZE(e750_dai),

	.dapm_widgets = e750_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(e750_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
	.fully_routed = true,
};

static struct gpio e750_audio_gpios[] = {
	{ GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
	{ GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
};

static int e750_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &e750;
	int ret;

	ret = gpio_request_array(e750_audio_gpios,
				 ARRAY_SIZE(e750_audio_gpios));
	if (ret)
		return ret;

	card->dev = &pdev->dev;

	ret = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
			ret);
		gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
	}
	return ret;
}

static int e750_remove(struct platform_device *pdev)
{
	gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
	return 0;
}

static struct platform_driver e750_driver = {
	.driver		= {
		.name	= "e750-audio",
		.pm     = &snd_soc_pm_ops,
	},
	.probe		= e750_probe,
	.remove		= e750_remove,
};

module_platform_driver(e750_driver);

/* Module information */
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_DESCRIPTION("ALSA SoC driver for e750");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:e750-audio");
Commit	Line	Data
a7e2e735 IM	1	/*
	2	* e750-wm9705.c -- SoC audio for e750
	3	*
	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>
	14	#include <linux/gpio.h>
	15
	16	#include <sound/core.h>
	17	#include <sound/pcm.h>
	18	#include <sound/soc.h>
a7e2e735	19
a7e2e735 IM	20	#include <mach/audio.h>
	21	#include <mach/eseries-gpio.h>
	22
	23	#include <asm/mach-types.h>
	24
	25	#include "../codecs/wm9705.h"
a7e2e735 IM	26	#include "pxa2xx-ac97.h"
	27
	28	static int e750_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_E750_SPK_AMP_OFF, 0);
	33	else if (event & SND_SOC_DAPM_POST_PMD)
	34	gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1);
	35
	36	return 0;
	37	}
	38
	39	static int e750_hp_amp_event(struct snd_soc_dapm_widget *w,
	40	struct snd_kcontrol *kcontrol, int event)
	41	{
	42	if (event & SND_SOC_DAPM_PRE_PMU)
	43	gpio_set_value(GPIO_E750_HP_AMP_OFF, 0);
	44	else if (event & SND_SOC_DAPM_POST_PMD)
	45	gpio_set_value(GPIO_E750_HP_AMP_OFF, 1);
	46
	47	return 0;
	48	}
	49
	50	static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
	51	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	52	SND_SOC_DAPM_SPK("Speaker", NULL),
	53	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	54	SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	55	e750_hp_amp_event, SND_SOC_DAPM_PRE_PMU \|
	56	SND_SOC_DAPM_POST_PMD),
	57	SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	58	e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU \|
	59	SND_SOC_DAPM_POST_PMD),
	60	};
	61
	62	static const struct snd_soc_dapm_route audio_map[] = {
	63	{"Headphone Amp", NULL, "HPOUTL"},
	64	{"Headphone Amp", NULL, "HPOUTR"},
	65	{"Headphone Jack", NULL, "Headphone Amp"},
	66
	67	{"Speaker Amp", NULL, "MONOOUT"},
	68	{"Speaker", NULL, "Speaker Amp"},
	69
	70	{"MIC1", NULL, "Mic (Internal)"},
	71	};
	72
a7e2e735 IM	73	static struct snd_soc_dai_link e750_dai[] = {
	74	{
	75	.name = "AC97",
	76	.stream_name = "AC97 HiFi",
4bfc4e25	77	.cpu_dai_name = "pxa2xx-ac97",
f0fba2ad LG	78	.codec_dai_name = "wm9705-hifi",
	79	.platform_name = "pxa-pcm-audio",
	80	.codec_name = "wm9705-codec",
a7e2e735 IM	81	/* use ops to check startup state */
	82	},
	83	{
	84	.name = "AC97 Aux",
	85	.stream_name = "AC97 Aux",
4bfc4e25	86	.cpu_dai_name = "pxa2xx-ac97-aux",
f0fba2ad LG	87	.codec_dai_name ="wm9705-aux",
	88	.platform_name = "pxa-pcm-audio",
	89	.codec_name = "wm9705-codec",
a7e2e735 IM	90	},
	91	};
	92
	93	static struct snd_soc_card e750 = {
	94	.name = "Toshiba e750",
561c6a17	95	.owner = THIS_MODULE,
a7e2e735 IM	96	.dai_link = e750_dai,
a7e2e735 IM	97	.num_links = ARRAY_SIZE(e750_dai),
98308c82 LPC	98
	99	.dapm_widgets = e750_dapm_widgets,
	100	.num_dapm_widgets = ARRAY_SIZE(e750_dapm_widgets),
	101	.dapm_routes = audio_map,
	102	.num_dapm_routes = ARRAY_SIZE(audio_map),
7523f69e	103	.fully_routed = true,
a7e2e735 IM	104	};
a7e2e735 IM	105
5eb2c3d9 AL	106	static struct gpio e750_audio_gpios[] = {
	107	{ GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
	108	{ GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
	109	};
a7e2e735	110
570f6fe1	111	static int e750_probe(struct platform_device *pdev)
a7e2e735	112	{
5eb2c3d9	113	struct snd_soc_card *card = &e750;
a7e2e735 IM	114	int ret;
a7e2e735 IM	115
5eb2c3d9 AL	116	ret = gpio_request_array(e750_audio_gpios,
5eb2c3d9 AL	117	ARRAY_SIZE(e750_audio_gpios));
a7e2e735 IM	118	if (ret)
	119	return ret;
	120
5eb2c3d9	121	card->dev = &pdev->dev;
a7e2e735	122
2fd7076a	123	ret = devm_snd_soc_register_card(&pdev->dev, card);
5eb2c3d9 AL	124	if (ret) {
	125	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	126	ret);
	127	gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
a7e2e735	128	}
a7e2e735 IM	129	return ret;
	130	}
	131
570f6fe1	132	static int e750_remove(struct platform_device *pdev)
a7e2e735	133	{
5eb2c3d9	134	gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
5eb2c3d9	135	return 0;
a7e2e735 IM	136	}
a7e2e735 IM	137
5eb2c3d9 AL	138	static struct platform_driver e750_driver = {
	139	.driver = {
	140	.name = "e750-audio",
7db1698f	141	.pm = &snd_soc_pm_ops,
5eb2c3d9 AL	142	},
5eb2c3d9 AL	143	.probe = e750_probe,
570f6fe1	144	.remove = e750_remove,
5eb2c3d9 AL	145	};
	146
	147	module_platform_driver(e750_driver);
a7e2e735 IM	148
	149	/* Module information */
	150	MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
	151	MODULE_DESCRIPTION("ALSA SoC driver for e750");
	152	MODULE_LICENSE("GPL v2");
5eb2c3d9	153	MODULE_ALIAS("platform:e750-audio");