[deliverable/linux.git] / sound / soc / pxa / e740_wm9705.c

/*
 * e740-wm9705.c  --  SoC audio for e740
 *
 * 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"


#define E740_AUDIO_OUT 1
#define E740_AUDIO_IN  2

static int e740_audio_power;

static void e740_sync_audio_power(int status)
{
	gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status);
	gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0);
	gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0);
}

static int e740_mic_amp_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *kcontrol, int event)
{
	if (event & SND_SOC_DAPM_PRE_PMU)
		e740_audio_power |= E740_AUDIO_IN;
	else if (event & SND_SOC_DAPM_POST_PMD)
		e740_audio_power &= ~E740_AUDIO_IN;

	e740_sync_audio_power(e740_audio_power);

	return 0;
}

static int e740_output_amp_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *kcontrol, int event)
{
	if (event & SND_SOC_DAPM_PRE_PMU)
		e740_audio_power |= E740_AUDIO_OUT;
	else if (event & SND_SOC_DAPM_POST_PMD)
		e740_audio_power &= ~E740_AUDIO_OUT;

	e740_sync_audio_power(e740_audio_power);

	return 0;
}

static const struct snd_soc_dapm_widget e740_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("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
			e740_output_amp_event, SND_SOC_DAPM_PRE_PMU |
			SND_SOC_DAPM_POST_PMD),
	SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
			e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU |
			SND_SOC_DAPM_POST_PMD),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{"Output Amp", NULL, "LOUT"},
	{"Output Amp", NULL, "ROUT"},
	{"Output Amp", NULL, "MONOOUT"},

	{"Speaker", NULL, "Output Amp"},
	{"Headphone Jack", NULL, "Output Amp"},

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

static struct snd_soc_dai_link e740_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",
	},
	{
		.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 e740 = {
	.name = "Toshiba e740",
	.owner = THIS_MODULE,
	.dai_link = e740_dai,
	.num_links = ARRAY_SIZE(e740_dai),

	.dapm_widgets = e740_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(e740_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
	.fully_routed = true,
};

static struct gpio e740_audio_gpios[] = {
	{ GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" },
	{ GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" },
	{ GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" },
};

static int e740_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &e740;
	int ret;

	ret = gpio_request_array(e740_audio_gpios,
				 ARRAY_SIZE(e740_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(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));
	}
	return ret;
}

static int e740_remove(struct platform_device *pdev)
{
	gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));
	return 0;
}

static struct platform_driver e740_driver = {
	.driver		= {
		.name	= "e740-audio",
		.pm     = &snd_soc_pm_ops,
	},
	.probe		= e740_probe,
	.remove		= e740_remove,
};

module_platform_driver(e740_driver);

/* Module information */
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_DESCRIPTION("ALSA SoC driver for e740");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:e740-audio");
Commit	Line	Data
28796eaf IM	1	/*
	2	* e740-wm9705.c -- SoC audio for e740
	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>
28796eaf	19
28796eaf 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"
28796eaf IM	26	#include "pxa2xx-ac97.h"
	27
	28
	29	#define E740_AUDIO_OUT 1
	30	#define E740_AUDIO_IN 2
	31
	32	static int e740_audio_power;
	33
	34	static void e740_sync_audio_power(int status)
	35	{
	36	gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status);
	37	gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0);
	38	gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0);
	39	}
	40
	41	static int e740_mic_amp_event(struct snd_soc_dapm_widget *w,
	42	struct snd_kcontrol *kcontrol, int event)
	43	{
	44	if (event & SND_SOC_DAPM_PRE_PMU)
	45	e740_audio_power \|= E740_AUDIO_IN;
	46	else if (event & SND_SOC_DAPM_POST_PMD)
	47	e740_audio_power &= ~E740_AUDIO_IN;
	48
	49	e740_sync_audio_power(e740_audio_power);
	50
	51	return 0;
	52	}
	53
	54	static int e740_output_amp_event(struct snd_soc_dapm_widget *w,
	55	struct snd_kcontrol *kcontrol, int event)
	56	{
	57	if (event & SND_SOC_DAPM_PRE_PMU)
	58	e740_audio_power \|= E740_AUDIO_OUT;
	59	else if (event & SND_SOC_DAPM_POST_PMD)
	60	e740_audio_power &= ~E740_AUDIO_OUT;
	61
	62	e740_sync_audio_power(e740_audio_power);
	63
	64	return 0;
	65	}
	66
	67	static const struct snd_soc_dapm_widget e740_dapm_widgets[] = {
	68	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	69	SND_SOC_DAPM_SPK("Speaker", NULL),
	70	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	71	SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	72	e740_output_amp_event, SND_SOC_DAPM_PRE_PMU \|
	73	SND_SOC_DAPM_POST_PMD),
	74	SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	75	e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU \|
	76	SND_SOC_DAPM_POST_PMD),
	77	};
	78
	79	static const struct snd_soc_dapm_route audio_map[] = {
	80	{"Output Amp", NULL, "LOUT"},
	81	{"Output Amp", NULL, "ROUT"},
	82	{"Output Amp", NULL, "MONOOUT"},
	83
	84	{"Speaker", NULL, "Output Amp"},
	85	{"Headphone Jack", NULL, "Output Amp"},
	86
	87	{"MIC1", NULL, "Mic Amp"},
	88	{"Mic Amp", NULL, "Mic (Internal)"},
	89	};
90
28796eaf IM	91	static struct snd_soc_dai_link e740_dai[] = {
	92	{
	93	.name = "AC97",
	94	.stream_name = "AC97 HiFi",
4bfc4e25	95	.cpu_dai_name = "pxa2xx-ac97",
f0fba2ad LG	96	.codec_dai_name = "wm9705-hifi",
	97	.platform_name = "pxa-pcm-audio",
	98	.codec_name = "wm9705-codec",
28796eaf IM	99	},
	100	{
	101	.name = "AC97 Aux",
	102	.stream_name = "AC97 Aux",
4bfc4e25	103	.cpu_dai_name = "pxa2xx-ac97-aux",
f0fba2ad LG	104	.codec_dai_name = "wm9705-aux",
	105	.platform_name = "pxa-pcm-audio",
	106	.codec_name = "wm9705-codec",
28796eaf IM	107	},
	108	};
	109
	110	static struct snd_soc_card e740 = {
	111	.name = "Toshiba e740",
561c6a17	112	.owner = THIS_MODULE,
28796eaf IM	113	.dai_link = e740_dai,
28796eaf IM	114	.num_links = ARRAY_SIZE(e740_dai),
23d8f225 LPC	115
	116	.dapm_widgets = e740_dapm_widgets,
	117	.num_dapm_widgets = ARRAY_SIZE(e740_dapm_widgets),
	118	.dapm_routes = audio_map,
	119	.num_dapm_routes = ARRAY_SIZE(audio_map),
dff6c964	120	.fully_routed = true,
28796eaf IM	121	};
28796eaf IM	122
62133829 AL	123	static struct gpio e740_audio_gpios[] = {
	124	{ GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" },
	125	{ GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" },
	126	{ GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" },
	127	};
28796eaf	128
570f6fe1	129	static int e740_probe(struct platform_device *pdev)
28796eaf	130	{
62133829	131	struct snd_soc_card *card = &e740;
28796eaf IM	132	int ret;
28796eaf IM	133
62133829 AL	134	ret = gpio_request_array(e740_audio_gpios,
62133829 AL	135	ARRAY_SIZE(e740_audio_gpios));
28796eaf IM	136	if (ret)
	137	return ret;
	138
62133829	139	card->dev = &pdev->dev;
28796eaf	140
2fd7076a	141	ret = devm_snd_soc_register_card(&pdev->dev, card);
62133829 AL	142	if (ret) {
	143	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	144	ret);
	145	gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));
28796eaf	146	}
28796eaf IM	147	return ret;
	148	}
	149
570f6fe1	150	static int e740_remove(struct platform_device *pdev)
28796eaf	151	{
62133829	152	gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));
62133829	153	return 0;
28796eaf IM	154	}
28796eaf IM	155
62133829 AL	156	static struct platform_driver e740_driver = {
	157	.driver = {
	158	.name = "e740-audio",
7db1698f	159	.pm = &snd_soc_pm_ops,
62133829 AL	160	},
62133829 AL	161	.probe = e740_probe,
570f6fe1	162	.remove = e740_remove,
62133829 AL	163	};
	164
	165	module_platform_driver(e740_driver);
28796eaf IM	166
	167	/* Module information */
	168	MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
	169	MODULE_DESCRIPTION("ALSA SoC driver for e740");
	170	MODULE_LICENSE("GPL v2");
62133829	171	MODULE_ALIAS("platform:e740-audio");