[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/module.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>

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

#include <asm/mach-types.h>

#include "dma.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)
{
	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
	16	#include <linux/module.h>
	17	#include <linux/platform_device.h>
	18	#include <linux/gpio.h>
	19
	20	#include <sound/pcm.h>
	21	#include <sound/pcm_params.h>
1c8f2c42	22	#include <sound/soc.h>
ce93a370 MC	23	#include <sound/jack.h>
	24
	25	#include <asm/mach-types.h>
	26
4b640cf3	27	#include "dma.h"
b9493d6c	28	#include "i2s.h"
ce93a370 MC	29
	30	#include "../codecs/wm8750.h"
	31
	32	/*
	33	* WM8987 is register compatible with WM8750, so using that as base driver.
	34	*/
	35
	36	static struct snd_soc_card snd_soc_smartq;
	37
	38	static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
	39	struct snd_pcm_hw_params *params)
	40	{
	41	struct snd_soc_pcm_runtime *rtd = substream->private_data;
74bd21e9 AL	42	struct snd_soc_dai *codec_dai = rtd->codec_dai;
74bd21e9 AL	43	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
ce93a370 MC	44	unsigned int clk = 0;
	45	int ret;
	46
ce93a370 MC	47	switch (params_rate(params)) {
	48	case 8000:
	49	case 16000:
	50	case 32000:
	51	case 48000:
	52	case 96000:
	53	clk = 12288000;
	54	break;
	55	case 11025:
	56	case 22050:
	57	case 44100:
	58	case 88200:
	59	clk = 11289600;
	60	break;
	61	}
	62
	63	/* set codec DAI configuration */
	64	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	65	SND_SOC_DAIFMT_NB_NF \|
	66	SND_SOC_DAIFMT_CBS_CFS);
	67	if (ret < 0)
	68	return ret;
	69
	70	/* set cpu DAI configuration */
	71	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	72	SND_SOC_DAIFMT_NB_NF \|
	73	SND_SOC_DAIFMT_CBS_CFS);
	74	if (ret < 0)
	75	return ret;
	76
b9493d6c JB	77	/* Use PCLK for I2S signal generation */
	78	ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
	79	0, SND_SOC_CLOCK_IN);
ce93a370 MC	80	if (ret < 0)
	81	return ret;
	82
b9493d6c JB	83	/* Gate the RCLK output on PAD */
	84	ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
	85	0, SND_SOC_CLOCK_IN);
ce93a370 MC	86	if (ret < 0)
	87	return ret;
	88
b9493d6c JB	89	/* set the codec system clock for DAC and ADC */
	90	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
	91	SND_SOC_CLOCK_IN);
ce93a370 MC	92	if (ret < 0)
	93	return ret;
	94
	95	return 0;
	96	}
	97
	98	/*
	99	* SmartQ WM8987 HiFi DAI operations.
	100	*/
	101	static struct snd_soc_ops smartq_hifi_ops = {
	102	.hw_params = smartq_hifi_hw_params,
	103	};
	104
	105	static struct snd_soc_jack smartq_jack;
	106
	107	static struct snd_soc_jack_pin smartq_jack_pins[] = {
	108	/* Disable speaker when headphone is plugged in */
	109	{
	110	.pin = "Internal Speaker",
	111	.mask = SND_JACK_HEADPHONE,
ce93a370 MC	112	},
	113	};
	114
	115	static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
	116	{
	117	.gpio = S3C64XX_GPL(12),
	118	.name = "headphone detect",
	119	.report = SND_JACK_HEADPHONE,
	120	.debounce_time = 200,
	121	},
	122	};
	123
	124	static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
	125	SOC_DAPM_PIN_SWITCH("Internal Speaker"),
	126	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	127	SOC_DAPM_PIN_SWITCH("Internal Mic"),
	128	};
	129
	130	static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
	131	struct snd_kcontrol *k,
	132	int event)
	133	{
	134	gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));
	135
	136	return 0;
	137	}
	138
	139	static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
	140	SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
	141	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	142	SND_SOC_DAPM_MIC("Internal Mic", NULL),
	143	};
	144
	145	static const struct snd_soc_dapm_route audio_map[] = {
	146	{"Headphone Jack", NULL, "LOUT2"},
	147	{"Headphone Jack", NULL, "ROUT2"},
	148
	149	{"Internal Speaker", NULL, "LOUT2"},
	150	{"Internal Speaker", NULL, "ROUT2"},
	151
	152	{"Mic Bias", NULL, "Internal Mic"},
	153	{"LINPUT2", NULL, "Mic Bias"},
	154	};
	155
74bd21e9	156	static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd)
ce93a370	157	{
74bd21e9	158	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	159	struct snd_soc_dapm_context *dapm = &codec->dapm;
ce93a370 MC	160	int err = 0;
	161
	162	/* Add SmartQ specific widgets */
ce6120cc	163	snd_soc_dapm_new_controls(dapm, wm8987_dapm_widgets,
ce93a370 MC	164	ARRAY_SIZE(wm8987_dapm_widgets));
	165
	166	/* add SmartQ specific controls */
	167	err = snd_soc_add_controls(codec, wm8987_smartq_controls,
	168	ARRAY_SIZE(wm8987_smartq_controls));
	169
	170	if (err < 0)
	171	return err;
	172
	173	/* setup SmartQ specific audio path */
ce6120cc	174	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
ce93a370 MC	175
ce93a370 MC	176	/* set endpoints to not connected */
ce6120cc LG	177	snd_soc_dapm_nc_pin(dapm, "LINPUT1");
	178	snd_soc_dapm_nc_pin(dapm, "RINPUT1");
	179	snd_soc_dapm_nc_pin(dapm, "OUT3");
	180	snd_soc_dapm_nc_pin(dapm, "ROUT1");
ce93a370 MC	181
ce93a370 MC	182	/* set endpoints to default off mode */
ce6120cc LG	183	snd_soc_dapm_enable_pin(dapm, "Internal Speaker");
	184	snd_soc_dapm_enable_pin(dapm, "Internal Mic");
	185	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
ce93a370	186
ce6120cc	187	err = snd_soc_dapm_sync(dapm);
ce93a370 MC	188	if (err)
	189	return err;
	190
	191	/* Headphone jack detection */
74bd21e9	192	err = snd_soc_jack_new(codec, "Headphone Jack",
ce93a370 MC	193	SND_JACK_HEADPHONE, &smartq_jack);
	194	if (err)
	195	return err;
	196
	197	err = snd_soc_jack_add_pins(&smartq_jack, ARRAY_SIZE(smartq_jack_pins),
	198	smartq_jack_pins);
	199	if (err)
	200	return err;
	201
	202	err = snd_soc_jack_add_gpios(&smartq_jack,
	203	ARRAY_SIZE(smartq_jack_gpios),
	204	smartq_jack_gpios);
	205
	206	return err;
	207	}
	208
	209	static struct snd_soc_dai_link smartq_dai[] = {
	210	{
	211	.name = "wm8987",
	212	.stream_name = "SmartQ Hi-Fi",
b9493d6c	213	.cpu_dai_name = "samsung-i2s.0",
f0fba2ad	214	.codec_dai_name = "wm8750-hifi",
58bb4072	215	.platform_name = "samsung-audio",
f0fba2ad	216	.codec_name = "wm8750-codec.0-0x1a",
ce93a370 MC	217	.init = smartq_wm8987_init,
	218	.ops = &smartq_hifi_ops,
	219	},
	220	};
	221
	222	static struct snd_soc_card snd_soc_smartq = {
	223	.name = "SmartQ",
ce93a370 MC	224	.dai_link = smartq_dai,
	225	.num_links = ARRAY_SIZE(smartq_dai),
	226	};
	227
ce93a370 MC	228	static struct platform_device *smartq_snd_device;
	229
	230	static int __init smartq_init(void)
	231	{
	232	int ret;
	233
	234	if (!machine_is_smartq7() && !machine_is_smartq5()) {
	235	pr_info("Only SmartQ is supported by this ASoC driver\n");
	236	return -ENODEV;
	237	}
	238
	239	smartq_snd_device = platform_device_alloc("soc-audio", -1);
	240	if (!smartq_snd_device)
	241	return -ENOMEM;
	242
f0fba2ad	243	platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
ce93a370 MC	244
	245	ret = platform_device_add(smartq_snd_device);
	246	if (ret) {
	247	platform_device_put(smartq_snd_device);
	248	return ret;
	249	}
	250
	251	/* Initialise GPIOs used by amplifiers */
	252	ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
	253	if (ret) {
	254	dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
	255	goto err_unregister_device;
	256	}
	257
	258	/* Disable amplifiers */
	259	ret = gpio_direction_output(S3C64XX_GPK(12), 1);
	260	if (ret) {
	261	dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
	262	goto err_free_gpio_amp_shut;
	263	}
	264
	265	return 0;
	266
	267	err_free_gpio_amp_shut:
	268	gpio_free(S3C64XX_GPK(12));
	269	err_unregister_device:
	270	platform_device_unregister(smartq_snd_device);
	271
	272	return ret;
	273	}
	274
	275	static void __exit smartq_exit(void)
	276	{
	277	snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
	278	smartq_jack_gpios);
	279
	280	platform_device_unregister(smartq_snd_device);
	281	}
	282
	283	module_init(smartq_init);
	284	module_exit(smartq_exit);
	285
	286	/* Module information */
	287	MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
	288	MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
	289	MODULE_LICENSE("GPL");