[deliverable/linux.git] / sound / soc / samsung / smartq_wm8987.c

/* sound/soc/samsung/smartq_wm8987.c
 *
 * Copyright 2010 Maurus Cuelenaere <mcuelenaere@gmail.com>
 *
 * Based on smdk6410_wm8987.c
 *     Copyright 2007 Wolfson Microelectronics PLC. - linux@wolfsonmicro.com
 *     Graeme Gregory - graeme.gregory@wolfsonmicro.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;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#include <linux/gpio.h>

#include <sound/soc.h>
#include <sound/jack.h>

#include <asm/mach-types.h>

#include "i2s.h"
#include "../codecs/wm8750.h"

/*
 * WM8987 is register compatible with WM8750, so using that as base driver.
 */

static struct snd_soc_card snd_soc_smartq;

static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	unsigned int clk = 0;
	int ret;

	switch (params_rate(params)) {
	case 8000:
	case 16000:
	case 32000:
	case 48000:
	case 96000:
		clk = 12288000;
		break;
	case 11025:
	case 22050:
	case 44100:
	case 88200:
		clk = 11289600;
		break;
	}

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
					     SND_SOC_DAIFMT_NB_NF |
					     SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
					   SND_SOC_DAIFMT_NB_NF |
					   SND_SOC_DAIFMT_CBS_CFS);
	if (ret < 0)
		return ret;

	/* Use PCLK for I2S signal generation */
	ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
					0, SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	/* Gate the RCLK output on PAD */
	ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
					0, SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	/* set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
				     SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	return 0;
}

/*
 * SmartQ WM8987 HiFi DAI operations.
 */
static struct snd_soc_ops smartq_hifi_ops = {
	.hw_params = smartq_hifi_hw_params,
};

static struct snd_soc_jack smartq_jack;

static struct snd_soc_jack_pin smartq_jack_pins[] = {
	/* Disable speaker when headphone is plugged in */
	{
		.pin	= "Internal Speaker",
		.mask	= SND_JACK_HEADPHONE,
	},
};

static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
	{
		.gpio		= S3C64XX_GPL(12),
		.name		= "headphone detect",
		.report		= SND_JACK_HEADPHONE,
		.debounce_time	= 200,
	},
};

static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
	SOC_DAPM_PIN_SWITCH("Internal Speaker"),
	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	SOC_DAPM_PIN_SWITCH("Internal Mic"),
};

static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *k,
				int event)
{
	gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));

	return 0;
}

static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Internal Mic", NULL),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{"Headphone Jack", NULL, "LOUT2"},
	{"Headphone Jack", NULL, "ROUT2"},

	{"Internal Speaker", NULL, "LOUT2"},
	{"Internal Speaker", NULL, "ROUT2"},

	{"Mic Bias", NULL, "Internal Mic"},
	{"LINPUT2", NULL, "Mic Bias"},
};

static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int err = 0;

	/* Add SmartQ specific widgets */
	snd_soc_dapm_new_controls(dapm, wm8987_dapm_widgets,
				  ARRAY_SIZE(wm8987_dapm_widgets));

	/* add SmartQ specific controls */
	err = snd_soc_add_controls(codec, wm8987_smartq_controls,
				   ARRAY_SIZE(wm8987_smartq_controls));

	if (err < 0)
		return err;

	/* setup SmartQ specific audio path */
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	/* set endpoints to not connected */
	snd_soc_dapm_nc_pin(dapm, "LINPUT1");
	snd_soc_dapm_nc_pin(dapm, "RINPUT1");
	snd_soc_dapm_nc_pin(dapm, "OUT3");
	snd_soc_dapm_nc_pin(dapm, "ROUT1");

	/* set endpoints to default off mode */
	snd_soc_dapm_enable_pin(dapm, "Internal Speaker");
	snd_soc_dapm_enable_pin(dapm, "Internal Mic");
	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");

	err = snd_soc_dapm_sync(dapm);
	if (err)
		return err;

	/* Headphone jack detection */
	err = snd_soc_jack_new(codec, "Headphone Jack",
			       SND_JACK_HEADPHONE, &smartq_jack);
	if (err)
		return err;

	err = snd_soc_jack_add_pins(&smartq_jack, ARRAY_SIZE(smartq_jack_pins),
				    smartq_jack_pins);
	if (err)
		return err;

	err = snd_soc_jack_add_gpios(&smartq_jack,
				     ARRAY_SIZE(smartq_jack_gpios),
				     smartq_jack_gpios);

	return err;
}

static struct snd_soc_dai_link smartq_dai[] = {
	{
		.name		= "wm8987",
		.stream_name	= "SmartQ Hi-Fi",
		.cpu_dai_name	= "samsung-i2s.0",
		.codec_dai_name	= "wm8750-hifi",
		.platform_name	= "samsung-audio",
		.codec_name	= "wm8750-codec.0-0x1a",
		.init		= smartq_wm8987_init,
		.ops		= &smartq_hifi_ops,
	},
};

static struct snd_soc_card snd_soc_smartq = {
	.name = "SmartQ",
	.dai_link = smartq_dai,
	.num_links = ARRAY_SIZE(smartq_dai),
};

static struct platform_device *smartq_snd_device;

static int __init smartq_init(void)
{
	int ret;

	if (!machine_is_smartq7() && !machine_is_smartq5()) {
		pr_info("Only SmartQ is supported by this ASoC driver\n");
		return -ENODEV;
	}

	smartq_snd_device = platform_device_alloc("soc-audio", -1);
	if (!smartq_snd_device)
		return -ENOMEM;

	platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);

	ret = platform_device_add(smartq_snd_device);
	if (ret) {
		platform_device_put(smartq_snd_device);
		return ret;
	}

	/* Initialise GPIOs used by amplifiers */
	ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
	if (ret) {
		dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
		goto err_unregister_device;
	}

	/* Disable amplifiers */
	ret = gpio_direction_output(S3C64XX_GPK(12), 1);
	if (ret) {
		dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
		goto err_free_gpio_amp_shut;
	}

	return 0;

err_free_gpio_amp_shut:
	gpio_free(S3C64XX_GPK(12));
err_unregister_device:
	platform_device_unregister(smartq_snd_device);

	return ret;
}

static void __exit smartq_exit(void)
{
	gpio_free(S3C64XX_GPK(12));
	snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
				smartq_jack_gpios);

	platform_device_unregister(smartq_snd_device);
}

module_init(smartq_init);
module_exit(smartq_exit);

/* Module information */
MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
MODULE_LICENSE("GPL");
Commit	Line	Data
5033f43c	1	/* sound/soc/samsung/smartq_wm8987.c
ce93a370 MC	2	*
	3	* Copyright 2010 Maurus Cuelenaere <mcuelenaere@gmail.com>
	4	*
	5	* Based on smdk6410_wm8987.c
	6	* Copyright 2007 Wolfson Microelectronics PLC. - linux@wolfsonmicro.com
	7	* Graeme Gregory - graeme.gregory@wolfsonmicro.com
	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms of the GNU General Public License as published by the
	11	* Free Software Foundation; either version 2 of the License, or (at your
	12	* option) any later version.
	13	*
	14	*/
	15
ce93a370 MC	16	#include <linux/gpio.h>
ce93a370 MC	17
1c8f2c42	18	#include <sound/soc.h>
ce93a370 MC	19	#include <sound/jack.h>
	20
	21	#include <asm/mach-types.h>
	22
b9493d6c	23	#include "i2s.h"
ce93a370 MC	24	#include "../codecs/wm8750.h"
	25
	26	/*
	27	* WM8987 is register compatible with WM8750, so using that as base driver.
	28	*/
	29
	30	static struct snd_soc_card snd_soc_smartq;
	31
	32	static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
	33	struct snd_pcm_hw_params *params)
	34	{
	35	struct snd_soc_pcm_runtime *rtd = substream->private_data;
74bd21e9 AL	36	struct snd_soc_dai *codec_dai = rtd->codec_dai;
74bd21e9 AL	37	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
ce93a370 MC	38	unsigned int clk = 0;
	39	int ret;
	40
ce93a370 MC	41	switch (params_rate(params)) {
	42	case 8000:
	43	case 16000:
	44	case 32000:
	45	case 48000:
	46	case 96000:
	47	clk = 12288000;
	48	break;
	49	case 11025:
	50	case 22050:
	51	case 44100:
	52	case 88200:
	53	clk = 11289600;
	54	break;
	55	}
	56
	57	/* set codec DAI configuration */
	58	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	59	SND_SOC_DAIFMT_NB_NF \|
	60	SND_SOC_DAIFMT_CBS_CFS);
	61	if (ret < 0)
	62	return ret;
	63
	64	/* set cpu DAI configuration */
	65	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	66	SND_SOC_DAIFMT_NB_NF \|
	67	SND_SOC_DAIFMT_CBS_CFS);
	68	if (ret < 0)
	69	return ret;
	70
b9493d6c JB	71	/* Use PCLK for I2S signal generation */
	72	ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
	73	0, SND_SOC_CLOCK_IN);
ce93a370 MC	74	if (ret < 0)
	75	return ret;
	76
b9493d6c JB	77	/* Gate the RCLK output on PAD */
	78	ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
	79	0, SND_SOC_CLOCK_IN);
ce93a370 MC	80	if (ret < 0)
	81	return ret;
	82
b9493d6c JB	83	/* set the codec system clock for DAC and ADC */
	84	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
	85	SND_SOC_CLOCK_IN);
ce93a370 MC	86	if (ret < 0)
	87	return ret;
	88
	89	return 0;
	90	}
	91
	92	/*
	93	* SmartQ WM8987 HiFi DAI operations.
	94	*/
	95	static struct snd_soc_ops smartq_hifi_ops = {
	96	.hw_params = smartq_hifi_hw_params,
	97	};
	98
	99	static struct snd_soc_jack smartq_jack;
	100
	101	static struct snd_soc_jack_pin smartq_jack_pins[] = {
	102	/* Disable speaker when headphone is plugged in */
	103	{
	104	.pin = "Internal Speaker",
	105	.mask = SND_JACK_HEADPHONE,
ce93a370 MC	106	},
	107	};
	108
	109	static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
	110	{
	111	.gpio = S3C64XX_GPL(12),
	112	.name = "headphone detect",
	113	.report = SND_JACK_HEADPHONE,
	114	.debounce_time = 200,
	115	},
	116	};
	117
	118	static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
	119	SOC_DAPM_PIN_SWITCH("Internal Speaker"),
	120	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	121	SOC_DAPM_PIN_SWITCH("Internal Mic"),
	122	};
	123
	124	static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
	125	struct snd_kcontrol *k,
	126	int event)
	127	{
	128	gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));
	129
	130	return 0;
	131	}
	132
	133	static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
	134	SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
	135	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	136	SND_SOC_DAPM_MIC("Internal Mic", NULL),
	137	};
	138
	139	static const struct snd_soc_dapm_route audio_map[] = {
	140	{"Headphone Jack", NULL, "LOUT2"},
	141	{"Headphone Jack", NULL, "ROUT2"},
	142
	143	{"Internal Speaker", NULL, "LOUT2"},
	144	{"Internal Speaker", NULL, "ROUT2"},
	145
	146	{"Mic Bias", NULL, "Internal Mic"},
	147	{"LINPUT2", NULL, "Mic Bias"},
	148	};
	149
74bd21e9	150	static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd)
ce93a370	151	{
74bd21e9	152	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	153	struct snd_soc_dapm_context *dapm = &codec->dapm;
ce93a370 MC	154	int err = 0;
	155
	156	/* Add SmartQ specific widgets */
ce6120cc	157	snd_soc_dapm_new_controls(dapm, wm8987_dapm_widgets,
ce93a370 MC	158	ARRAY_SIZE(wm8987_dapm_widgets));
	159
	160	/* add SmartQ specific controls */
	161	err = snd_soc_add_controls(codec, wm8987_smartq_controls,
	162	ARRAY_SIZE(wm8987_smartq_controls));
	163
	164	if (err < 0)
	165	return err;
	166
	167	/* setup SmartQ specific audio path */
ce6120cc	168	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
ce93a370 MC	169
ce93a370 MC	170	/* set endpoints to not connected */
ce6120cc LG	171	snd_soc_dapm_nc_pin(dapm, "LINPUT1");
	172	snd_soc_dapm_nc_pin(dapm, "RINPUT1");
	173	snd_soc_dapm_nc_pin(dapm, "OUT3");
	174	snd_soc_dapm_nc_pin(dapm, "ROUT1");
ce93a370 MC	175
ce93a370 MC	176	/* set endpoints to default off mode */
ce6120cc LG	177	snd_soc_dapm_enable_pin(dapm, "Internal Speaker");
	178	snd_soc_dapm_enable_pin(dapm, "Internal Mic");
	179	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
ce93a370	180
ce6120cc	181	err = snd_soc_dapm_sync(dapm);
ce93a370 MC	182	if (err)
	183	return err;
	184
	185	/* Headphone jack detection */
74bd21e9	186	err = snd_soc_jack_new(codec, "Headphone Jack",
ce93a370 MC	187	SND_JACK_HEADPHONE, &smartq_jack);
	188	if (err)
	189	return err;
	190
	191	err = snd_soc_jack_add_pins(&smartq_jack, ARRAY_SIZE(smartq_jack_pins),
	192	smartq_jack_pins);
	193	if (err)
	194	return err;
	195
	196	err = snd_soc_jack_add_gpios(&smartq_jack,
	197	ARRAY_SIZE(smartq_jack_gpios),
	198	smartq_jack_gpios);
	199
	200	return err;
	201	}
	202
	203	static struct snd_soc_dai_link smartq_dai[] = {
	204	{
	205	.name = "wm8987",
	206	.stream_name = "SmartQ Hi-Fi",
b9493d6c	207	.cpu_dai_name = "samsung-i2s.0",
f0fba2ad	208	.codec_dai_name = "wm8750-hifi",
58bb4072	209	.platform_name = "samsung-audio",
f0fba2ad	210	.codec_name = "wm8750-codec.0-0x1a",
ce93a370 MC	211	.init = smartq_wm8987_init,
	212	.ops = &smartq_hifi_ops,
	213	},
	214	};
	215
	216	static struct snd_soc_card snd_soc_smartq = {
	217	.name = "SmartQ",
ce93a370 MC	218	.dai_link = smartq_dai,
	219	.num_links = ARRAY_SIZE(smartq_dai),
	220	};
	221
ce93a370 MC	222	static struct platform_device *smartq_snd_device;
	223
	224	static int __init smartq_init(void)
	225	{
	226	int ret;
	227
	228	if (!machine_is_smartq7() && !machine_is_smartq5()) {
	229	pr_info("Only SmartQ is supported by this ASoC driver\n");
	230	return -ENODEV;
	231	}
	232
	233	smartq_snd_device = platform_device_alloc("soc-audio", -1);
	234	if (!smartq_snd_device)
	235	return -ENOMEM;
	236
f0fba2ad	237	platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
ce93a370 MC	238
	239	ret = platform_device_add(smartq_snd_device);
	240	if (ret) {
	241	platform_device_put(smartq_snd_device);
	242	return ret;
	243	}
	244
	245	/* Initialise GPIOs used by amplifiers */
	246	ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
	247	if (ret) {
	248	dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
	249	goto err_unregister_device;
	250	}
	251
	252	/* Disable amplifiers */
	253	ret = gpio_direction_output(S3C64XX_GPK(12), 1);
	254	if (ret) {
	255	dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
	256	goto err_free_gpio_amp_shut;
	257	}
	258
	259	return 0;
	260
	261	err_free_gpio_amp_shut:
	262	gpio_free(S3C64XX_GPK(12));
	263	err_unregister_device:
	264	platform_device_unregister(smartq_snd_device);
	265
	266	return ret;
	267	}
	268
	269	static void __exit smartq_exit(void)
	270	{
3790f205	271	gpio_free(S3C64XX_GPK(12));
ce93a370 MC	272	snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
	273	smartq_jack_gpios);
	274
	275	platform_device_unregister(smartq_snd_device);
	276	}
	277
	278	module_init(smartq_init);
	279	module_exit(smartq_exit);
	280
	281	/* Module information */
	282	MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
	283	MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
	284	MODULE_LICENSE("GPL");