[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 <sound/soc-dapm.h>

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

#include <asm/mach-types.h>

#include "../codecs/wm9705.h"
#include "pxa2xx-pcm.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 int e750_ac97_init(struct snd_soc_codec *codec)
{
	snd_soc_dapm_nc_pin(codec, "LOUT");
	snd_soc_dapm_nc_pin(codec, "ROUT");
	snd_soc_dapm_nc_pin(codec, "PHONE");
	snd_soc_dapm_nc_pin(codec, "LINEINL");
	snd_soc_dapm_nc_pin(codec, "LINEINR");
	snd_soc_dapm_nc_pin(codec, "CDINL");
	snd_soc_dapm_nc_pin(codec, "CDINR");
	snd_soc_dapm_nc_pin(codec, "PCBEEP");
	snd_soc_dapm_nc_pin(codec, "MIC2");

	snd_soc_dapm_new_controls(codec, e750_dapm_widgets,
					ARRAY_SIZE(e750_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 e750_dai[] = {
	{
		.name = "AC97",
		.stream_name = "AC97 HiFi",
		.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
		.codec_dai = &wm9705_dai[WM9705_DAI_AC97_HIFI],
		.init = e750_ac97_init,
		/* use ops to check startup state */
	},
	{
		.name = "AC97 Aux",
		.stream_name = "AC97 Aux",
		.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
		.codec_dai = &wm9705_dai[WM9705_DAI_AC97_AUX],
	},
};

static struct snd_soc_card e750 = {
	.name = "Toshiba e750",
	.platform = &pxa2xx_soc_platform,
	.dai_link = e750_dai,
	.num_links = ARRAY_SIZE(e750_dai),
};

static struct snd_soc_device e750_snd_devdata = {
	.card = &e750,
	.codec_dev = &soc_codec_dev_wm9705,
};

static struct platform_device *e750_snd_device;

static int __init e750_init(void)
{
	int ret;

	if (!machine_is_e750())
		return -ENODEV;

	ret = gpio_request(GPIO_E750_HP_AMP_OFF,  "Headphone amp");
	if (ret)
		return ret;

	ret = gpio_request(GPIO_E750_SPK_AMP_OFF, "Speaker amp");
	if (ret)
		goto free_hp_amp_gpio;

	ret = gpio_direction_output(GPIO_E750_HP_AMP_OFF, 1);
	if (ret)
		goto free_spk_amp_gpio;

	ret = gpio_direction_output(GPIO_E750_SPK_AMP_OFF, 1);
	if (ret)
		goto free_spk_amp_gpio;

	e750_snd_device = platform_device_alloc("soc-audio", -1);
	if (!e750_snd_device) {
		ret = -ENOMEM;
		goto free_spk_amp_gpio;
	}

	platform_set_drvdata(e750_snd_device, &e750_snd_devdata);
	e750_snd_devdata.dev = &e750_snd_device->dev;
	ret = platform_device_add(e750_snd_device);

	if (!ret)
		return 0;

/* Fail gracefully */
	platform_device_put(e750_snd_device);
free_spk_amp_gpio:
	gpio_free(GPIO_E750_SPK_AMP_OFF);
free_hp_amp_gpio:
	gpio_free(GPIO_E750_HP_AMP_OFF);

	return ret;
}

static void __exit e750_exit(void)
{
	platform_device_unregister(e750_snd_device);
	gpio_free(GPIO_E750_SPK_AMP_OFF);
	gpio_free(GPIO_E750_HP_AMP_OFF);
}

module_init(e750_init);
module_exit(e750_exit);

/* Module information */
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_DESCRIPTION("ALSA SoC driver for e750");
MODULE_LICENSE("GPL v2");
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>
	19	#include <sound/soc-dapm.h>
	20
a7e2e735 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"
	27	#include "pxa2xx-pcm.h"
	28	#include "pxa2xx-ac97.h"
	29
	30	static int e750_spk_amp_event(struct snd_soc_dapm_widget *w,
	31	struct snd_kcontrol *kcontrol, int event)
	32	{
	33	if (event & SND_SOC_DAPM_PRE_PMU)
	34	gpio_set_value(GPIO_E750_SPK_AMP_OFF, 0);
	35	else if (event & SND_SOC_DAPM_POST_PMD)
	36	gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1);
	37
	38	return 0;
	39	}
	40
	41	static int e750_hp_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	gpio_set_value(GPIO_E750_HP_AMP_OFF, 0);
	46	else if (event & SND_SOC_DAPM_POST_PMD)
	47	gpio_set_value(GPIO_E750_HP_AMP_OFF, 1);
	48
	49	return 0;
	50	}
	51
	52	static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
	53	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	54	SND_SOC_DAPM_SPK("Speaker", NULL),
	55	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	56	SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	57	e750_hp_amp_event, SND_SOC_DAPM_PRE_PMU \|
	58	SND_SOC_DAPM_POST_PMD),
	59	SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	60	e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU \|
	61	SND_SOC_DAPM_POST_PMD),
	62	};
	63
	64	static const struct snd_soc_dapm_route audio_map[] = {
	65	{"Headphone Amp", NULL, "HPOUTL"},
	66	{"Headphone Amp", NULL, "HPOUTR"},
	67	{"Headphone Jack", NULL, "Headphone Amp"},
	68
	69	{"Speaker Amp", NULL, "MONOOUT"},
	70	{"Speaker", NULL, "Speaker Amp"},
	71
	72	{"MIC1", NULL, "Mic (Internal)"},
	73	};
	74
	75	static int e750_ac97_init(struct snd_soc_codec *codec)
	76	{
	77	snd_soc_dapm_nc_pin(codec, "LOUT");
	78	snd_soc_dapm_nc_pin(codec, "ROUT");
	79	snd_soc_dapm_nc_pin(codec, "PHONE");
	80	snd_soc_dapm_nc_pin(codec, "LINEINL");
	81	snd_soc_dapm_nc_pin(codec, "LINEINR");
	82	snd_soc_dapm_nc_pin(codec, "CDINL");
	83	snd_soc_dapm_nc_pin(codec, "CDINR");
	84	snd_soc_dapm_nc_pin(codec, "PCBEEP");
85	snd_soc_dapm_nc_pin(codec, "MIC2");
86
87	snd_soc_dapm_new_controls(codec, e750_dapm_widgets,
88	ARRAY_SIZE(e750_dapm_widgets));
89
90	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
91
92	snd_soc_dapm_sync(codec);
93
94	return 0;
95	}
96
97	static struct snd_soc_dai_link e750_dai[] = {
98	{
99	.name = "AC97",
100	.stream_name = "AC97 HiFi",
101	.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI],
102	.codec_dai = &wm9705_dai[WM9705_DAI_AC97_HIFI],
103	.init = e750_ac97_init,
104	/* use ops to check startup state */
105	},
106	{
107	.name = "AC97 Aux",
108	.stream_name = "AC97 Aux",
109	.cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX],
110	.codec_dai = &wm9705_dai[WM9705_DAI_AC97_AUX],
111	},
112	};
113
114	static struct snd_soc_card e750 = {
115	.name = "Toshiba e750",
116	.platform = &pxa2xx_soc_platform,
117	.dai_link = e750_dai,
118	.num_links = ARRAY_SIZE(e750_dai),
119	};
120
121	static struct snd_soc_device e750_snd_devdata = {
122	.card = &e750,
123	.codec_dev = &soc_codec_dev_wm9705,
124	};
125
126	static struct platform_device *e750_snd_device;
127
128	static int __init e750_init(void)
129	{
130	int ret;
131
132	if (!machine_is_e750())
133	return -ENODEV;
134
135	ret = gpio_request(GPIO_E750_HP_AMP_OFF, "Headphone amp");
136	if (ret)
137	return ret;
138
139	ret = gpio_request(GPIO_E750_SPK_AMP_OFF, "Speaker amp");
140	if (ret)
141	goto free_hp_amp_gpio;
142
143	ret = gpio_direction_output(GPIO_E750_HP_AMP_OFF, 1);
144	if (ret)
145	goto free_spk_amp_gpio;
146
147	ret = gpio_direction_output(GPIO_E750_SPK_AMP_OFF, 1);
148	if (ret)
149	goto free_spk_amp_gpio;
150
151	e750_snd_device = platform_device_alloc("soc-audio", -1);
152	if (!e750_snd_device) {
153	ret = -ENOMEM;
154	goto free_spk_amp_gpio;
155	}
156
157	platform_set_drvdata(e750_snd_device, &e750_snd_devdata);
158	e750_snd_devdata.dev = &e750_snd_device->dev;
159	ret = platform_device_add(e750_snd_device);
160
161	if (!ret)
162	return 0;
163
164	/* Fail gracefully */
165	platform_device_put(e750_snd_device);
166	free_spk_amp_gpio:
167	gpio_free(GPIO_E750_SPK_AMP_OFF);
168	free_hp_amp_gpio:
169	gpio_free(GPIO_E750_HP_AMP_OFF);
170
171	return ret;
172	}
173
174	static void __exit e750_exit(void)
175	{
176	platform_device_unregister(e750_snd_device);
177	gpio_free(GPIO_E750_SPK_AMP_OFF);
178	gpio_free(GPIO_E750_HP_AMP_OFF);
179	}
180
181	module_init(e750_init);
182	module_exit(e750_exit);
183
184	/* Module information */
185	MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
186	MODULE_DESCRIPTION("ALSA SoC driver for e750");
187	MODULE_LICENSE("GPL v2");