[linux-2.6-block.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 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));

	return 0;
}

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",
		.init = e740_ac97_init,
	},
	{
		.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",
	.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;

	/* Disable audio */
	ret = gpio_request_one(GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp");
	if (ret)
		return ret;

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

	ret = gpio_request_one(GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH,
			   "Audio power");
	if (ret)
		goto free_op_amp_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>
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
f0fba2ad	91	static int e740_ac97_init(struct snd_soc_pcm_runtime *rtd)
28796eaf	92	{
f0fba2ad	93	struct snd_soc_codec *codec = rtd->codec;
ce6120cc LG	94	struct snd_soc_dapm_context *dapm = &codec->dapm;
	95
	96	snd_soc_dapm_nc_pin(dapm, "HPOUTL");
	97	snd_soc_dapm_nc_pin(dapm, "HPOUTR");
	98	snd_soc_dapm_nc_pin(dapm, "PHONE");
	99	snd_soc_dapm_nc_pin(dapm, "LINEINL");
	100	snd_soc_dapm_nc_pin(dapm, "LINEINR");
	101	snd_soc_dapm_nc_pin(dapm, "CDINL");
	102	snd_soc_dapm_nc_pin(dapm, "CDINR");
	103	snd_soc_dapm_nc_pin(dapm, "PCBEEP");
	104	snd_soc_dapm_nc_pin(dapm, "MIC2");
	105
	106	snd_soc_dapm_new_controls(dapm, e740_dapm_widgets,
28796eaf IM	107	ARRAY_SIZE(e740_dapm_widgets));
28796eaf IM	108
ce6120cc	109	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
28796eaf	110
28796eaf IM	111	return 0;
	112	}
	113
	114	static struct snd_soc_dai_link e740_dai[] = {
	115	{
	116	.name = "AC97",
	117	.stream_name = "AC97 HiFi",
4bfc4e25	118	.cpu_dai_name = "pxa2xx-ac97",
f0fba2ad LG	119	.codec_dai_name = "wm9705-hifi",
	120	.platform_name = "pxa-pcm-audio",
	121	.codec_name = "wm9705-codec",
28796eaf IM	122	.init = e740_ac97_init,
	123	},
	124	{
	125	.name = "AC97 Aux",
	126	.stream_name = "AC97 Aux",
4bfc4e25	127	.cpu_dai_name = "pxa2xx-ac97-aux",
f0fba2ad LG	128	.codec_dai_name = "wm9705-aux",
	129	.platform_name = "pxa-pcm-audio",
	130	.codec_name = "wm9705-codec",
28796eaf IM	131	},
	132	};
	133
	134	static struct snd_soc_card e740 = {
	135	.name = "Toshiba e740",
28796eaf IM	136	.dai_link = e740_dai,
	137	.num_links = ARRAY_SIZE(e740_dai),
	138	};
	139
28796eaf IM	140	static struct platform_device *e740_snd_device;
	141
	142	static int __init e740_init(void)
	143	{
	144	int ret;
	145
	146	if (!machine_is_e740())
	147	return -ENODEV;
	148
aec60f51 AL	149	/* Disable audio */
aec60f51 AL	150	ret = gpio_request_one(GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp");
28796eaf IM	151	if (ret)
	152	return ret;
	153
aec60f51 AL	154	ret = gpio_request_one(GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW,
aec60f51 AL	155	"Output amp");
28796eaf IM	156	if (ret)
	157	goto free_mic_amp_gpio;
	158
aec60f51 AL	159	ret = gpio_request_one(GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH,
aec60f51 AL	160	"Audio power");
28796eaf IM	161	if (ret)
	162	goto free_op_amp_gpio;
	163
28796eaf IM	164	e740_snd_device = platform_device_alloc("soc-audio", -1);
	165	if (!e740_snd_device) {
	166	ret = -ENOMEM;
	167	goto free_apwr_gpio;
	168	}
	169
f0fba2ad	170	platform_set_drvdata(e740_snd_device, &e740);
28796eaf IM	171	ret = platform_device_add(e740_snd_device);
	172
	173	if (!ret)
	174	return 0;
	175
	176	/* Fail gracefully */
	177	platform_device_put(e740_snd_device);
	178	free_apwr_gpio:
	179	gpio_free(GPIO_E740_WM9705_nAVDD2);
	180	free_op_amp_gpio:
	181	gpio_free(GPIO_E740_AMP_ON);
	182	free_mic_amp_gpio:
	183	gpio_free(GPIO_E740_MIC_ON);
	184
	185	return ret;
	186	}
	187
	188	static void __exit e740_exit(void)
	189	{
	190	platform_device_unregister(e740_snd_device);
b67696b4 AL	191	gpio_free(GPIO_E740_WM9705_nAVDD2);
	192	gpio_free(GPIO_E740_AMP_ON);
	193	gpio_free(GPIO_E740_MIC_ON);
28796eaf IM	194	}
	195
	196	module_init(e740_init);
	197	module_exit(e740_exit);
	198
	199	/* Module information */
	200	MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
	201	MODULE_DESCRIPTION("ALSA SoC driver for e740");
	202	MODULE_LICENSE("GPL v2");