[GitHub/mt8127/android_kernel_alcatel_ttab.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 <sound/soc-dapm.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 int e740_ac97_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	snd_soc_dapm_nc_pin(dapm, "HPOUTL");
	snd_soc_dapm_nc_pin(dapm, "HPOUTR");
	snd_soc_dapm_nc_pin(dapm, "PHONE");
	snd_soc_dapm_nc_pin(dapm, "LINEINL");
	snd_soc_dapm_nc_pin(dapm, "LINEINR");
	snd_soc_dapm_nc_pin(dapm, "CDINL");
	snd_soc_dapm_nc_pin(dapm, "CDINR");
	snd_soc_dapm_nc_pin(dapm, "PCBEEP");
	snd_soc_dapm_nc_pin(dapm, "MIC2");

	snd_soc_dapm_new_controls(dapm, e740_dapm_widgets,
					ARRAY_SIZE(e740_dapm_widgets));

	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_sync(dapm);

	return 0;
}

static struct snd_soc_dai_link e740_dai[] = {
	{
		.name = "AC97",
		.stream_name = "AC97 HiFi",
		.cpu_dai_name = "pxa-ac97.0",
		.codec_dai_name = "wm9705-hifi",
		.platform_name = "pxa-pcm-audio",
		.codec_name = "wm9705-codec",
		.init = e740_ac97_init,
	},
	{
		.name = "AC97 Aux",
		.stream_name = "AC97 Aux",
		.cpu_dai_name = "pxa-ac97.1",
		.codec_dai_name = "wm9705-aux",
		.platform_name = "pxa-pcm-audio",
		.codec_name = "wm9705-codec",
	},
};

static struct snd_soc_card e740 = {
	.name = "Toshiba e740",
	.dai_link = e740_dai,
	.num_links = ARRAY_SIZE(e740_dai),
};

static struct platform_device *e740_snd_device;

static int __init e740_init(void)
{
	int ret;

	if (!machine_is_e740())
		return -ENODEV;

	ret = gpio_request(GPIO_E740_MIC_ON,  "Mic amp");
	if (ret)
		return ret;

	ret = gpio_request(GPIO_E740_AMP_ON, "Output amp");
	if (ret)
		goto free_mic_amp_gpio;

	ret = gpio_request(GPIO_E740_WM9705_nAVDD2, "Audio power");
	if (ret)
		goto free_op_amp_gpio;

	/* Disable audio */
	ret = gpio_direction_output(GPIO_E740_MIC_ON, 0);
	if (ret)
		goto free_apwr_gpio;
	ret = gpio_direction_output(GPIO_E740_AMP_ON, 0);
	if (ret)
		goto free_apwr_gpio;
	ret = gpio_direction_output(GPIO_E740_WM9705_nAVDD2, 1);
	if (ret)
		goto free_apwr_gpio;

	e740_snd_device = platform_device_alloc("soc-audio", -1);
	if (!e740_snd_device) {
		ret = -ENOMEM;
		goto free_apwr_gpio;
	}

	platform_set_drvdata(e740_snd_device, &e740);
	ret = platform_device_add(e740_snd_device);

	if (!ret)
		return 0;

/* Fail gracefully */
	platform_device_put(e740_snd_device);
free_apwr_gpio:
	gpio_free(GPIO_E740_WM9705_nAVDD2);
free_op_amp_gpio:
	gpio_free(GPIO_E740_AMP_ON);
free_mic_amp_gpio:
	gpio_free(GPIO_E740_MIC_ON);

	return ret;
}

static void __exit e740_exit(void)
{
	platform_device_unregister(e740_snd_device);
	gpio_free(GPIO_E740_WM9705_nAVDD2);
	gpio_free(GPIO_E740_AMP_ON);
	gpio_free(GPIO_E740_MIC_ON);
}

module_init(e740_init);
module_exit(e740_exit);

/* Module information */
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_DESCRIPTION("ALSA SoC driver for e740");
MODULE_LICENSE("GPL v2");
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>
	19	#include <sound/soc-dapm.h>
	20
28796eaf IM	21	#include <mach/audio.h>
	22	#include <mach/eseries-gpio.h>
	23
	24	#include <asm/mach-types.h>
	25
	26	#include "../codecs/wm9705.h"
28796eaf IM	27	#include "pxa2xx-ac97.h"
	28
	29
	30	#define E740_AUDIO_OUT 1
	31	#define E740_AUDIO_IN 2
	32
	33	static int e740_audio_power;
	34
	35	static void e740_sync_audio_power(int status)
	36	{
	37	gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status);
	38	gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0);
	39	gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0);
	40	}
	41
	42	static int e740_mic_amp_event(struct snd_soc_dapm_widget *w,
	43	struct snd_kcontrol *kcontrol, int event)
	44	{
	45	if (event & SND_SOC_DAPM_PRE_PMU)
	46	e740_audio_power \|= E740_AUDIO_IN;
	47	else if (event & SND_SOC_DAPM_POST_PMD)
	48	e740_audio_power &= ~E740_AUDIO_IN;
	49
	50	e740_sync_audio_power(e740_audio_power);
	51
	52	return 0;
	53	}
	54
	55	static int e740_output_amp_event(struct snd_soc_dapm_widget *w,
	56	struct snd_kcontrol *kcontrol, int event)
	57	{
	58	if (event & SND_SOC_DAPM_PRE_PMU)
	59	e740_audio_power \|= E740_AUDIO_OUT;
	60	else if (event & SND_SOC_DAPM_POST_PMD)
	61	e740_audio_power &= ~E740_AUDIO_OUT;
	62
	63	e740_sync_audio_power(e740_audio_power);
	64
	65	return 0;
	66	}
	67
	68	static const struct snd_soc_dapm_widget e740_dapm_widgets[] = {
	69	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	70	SND_SOC_DAPM_SPK("Speaker", NULL),
	71	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	72	SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	73	e740_output_amp_event, SND_SOC_DAPM_PRE_PMU \|
	74	SND_SOC_DAPM_POST_PMD),
	75	SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	76	e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU \|
	77	SND_SOC_DAPM_POST_PMD),
	78	};
	79
	80	static const struct snd_soc_dapm_route audio_map[] = {
	81	{"Output Amp", NULL, "LOUT"},
	82	{"Output Amp", NULL, "ROUT"},
	83	{"Output Amp", NULL, "MONOOUT"},
	84
	85	{"Speaker", NULL, "Output Amp"},
	86	{"Headphone Jack", NULL, "Output Amp"},
	87
	88	{"MIC1", NULL, "Mic Amp"},
	89	{"Mic Amp", NULL, "Mic (Internal)"},
	90	};
91
f0fba2ad	92	static int e740_ac97_init(struct snd_soc_pcm_runtime *rtd)
28796eaf	93	{
f0fba2ad	94	struct snd_soc_codec *codec = rtd->codec;
ce6120cc LG	95	struct snd_soc_dapm_context *dapm = &codec->dapm;
	96
	97	snd_soc_dapm_nc_pin(dapm, "HPOUTL");
	98	snd_soc_dapm_nc_pin(dapm, "HPOUTR");
	99	snd_soc_dapm_nc_pin(dapm, "PHONE");
	100	snd_soc_dapm_nc_pin(dapm, "LINEINL");
	101	snd_soc_dapm_nc_pin(dapm, "LINEINR");
	102	snd_soc_dapm_nc_pin(dapm, "CDINL");
	103	snd_soc_dapm_nc_pin(dapm, "CDINR");
	104	snd_soc_dapm_nc_pin(dapm, "PCBEEP");
	105	snd_soc_dapm_nc_pin(dapm, "MIC2");
	106
	107	snd_soc_dapm_new_controls(dapm, e740_dapm_widgets,
28796eaf IM	108	ARRAY_SIZE(e740_dapm_widgets));
28796eaf IM	109
ce6120cc	110	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
28796eaf	111
ce6120cc	112	snd_soc_dapm_sync(dapm);
28796eaf IM	113
	114	return 0;
	115	}
	116
	117	static struct snd_soc_dai_link e740_dai[] = {
	118	{
	119	.name = "AC97",
	120	.stream_name = "AC97 HiFi",
f0fba2ad LG	121	.cpu_dai_name = "pxa-ac97.0",
	122	.codec_dai_name = "wm9705-hifi",
	123	.platform_name = "pxa-pcm-audio",
	124	.codec_name = "wm9705-codec",
28796eaf IM	125	.init = e740_ac97_init,
	126	},
	127	{
	128	.name = "AC97 Aux",
	129	.stream_name = "AC97 Aux",
f0fba2ad LG	130	.cpu_dai_name = "pxa-ac97.1",
	131	.codec_dai_name = "wm9705-aux",
	132	.platform_name = "pxa-pcm-audio",
	133	.codec_name = "wm9705-codec",
28796eaf IM	134	},
	135	};
	136
	137	static struct snd_soc_card e740 = {
	138	.name = "Toshiba e740",
28796eaf IM	139	.dai_link = e740_dai,
	140	.num_links = ARRAY_SIZE(e740_dai),
	141	};
	142
28796eaf IM	143	static struct platform_device *e740_snd_device;
	144
	145	static int __init e740_init(void)
	146	{
	147	int ret;
	148
	149	if (!machine_is_e740())
	150	return -ENODEV;
	151
	152	ret = gpio_request(GPIO_E740_MIC_ON, "Mic amp");
	153	if (ret)
	154	return ret;
	155
	156	ret = gpio_request(GPIO_E740_AMP_ON, "Output amp");
	157	if (ret)
	158	goto free_mic_amp_gpio;
	159
	160	ret = gpio_request(GPIO_E740_WM9705_nAVDD2, "Audio power");
	161	if (ret)
	162	goto free_op_amp_gpio;
	163
	164	/* Disable audio */
	165	ret = gpio_direction_output(GPIO_E740_MIC_ON, 0);
	166	if (ret)
	167	goto free_apwr_gpio;
	168	ret = gpio_direction_output(GPIO_E740_AMP_ON, 0);
	169	if (ret)
	170	goto free_apwr_gpio;
	171	ret = gpio_direction_output(GPIO_E740_WM9705_nAVDD2, 1);
	172	if (ret)
	173	goto free_apwr_gpio;
	174
	175	e740_snd_device = platform_device_alloc("soc-audio", -1);
	176	if (!e740_snd_device) {
	177	ret = -ENOMEM;
	178	goto free_apwr_gpio;
	179	}
	180
f0fba2ad	181	platform_set_drvdata(e740_snd_device, &e740);
28796eaf IM	182	ret = platform_device_add(e740_snd_device);
	183
	184	if (!ret)
	185	return 0;
	186
	187	/* Fail gracefully */
	188	platform_device_put(e740_snd_device);
	189	free_apwr_gpio:
	190	gpio_free(GPIO_E740_WM9705_nAVDD2);
	191	free_op_amp_gpio:
	192	gpio_free(GPIO_E740_AMP_ON);
	193	free_mic_amp_gpio:
	194	gpio_free(GPIO_E740_MIC_ON);
	195
	196	return ret;
	197	}
	198
	199	static void __exit e740_exit(void)
	200	{
	201	platform_device_unregister(e740_snd_device);
b67696b4 AL	202	gpio_free(GPIO_E740_WM9705_nAVDD2);
	203	gpio_free(GPIO_E740_AMP_ON);
	204	gpio_free(GPIO_E740_MIC_ON);
28796eaf IM	205	}
	206
	207	module_init(e740_init);
	208	module_exit(e740_exit);
	209
	210	/* Module information */
	211	MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
	212	MODULE_DESCRIPTION("ALSA SoC driver for e740");
	213	MODULE_LICENSE("GPL v2");