[GitHub/mt8127/android_kernel_alcatel_ttab.git] / sound / soc / samsung / rx1950_uda1380.c

/*
 * rx1950.c  --  ALSA Soc Audio Layer
 *
 * Copyright (c) 2010 Vasily Khoruzhick <anarsoul@gmail.com>
 *
 * Based on smdk2440.c and magician.c
 *
 * Authors: Graeme Gregory graeme.gregory@wolfsonmicro.com
 *          Philipp Zabel <philipp.zabel@gmail.com>
 *          Denis Grigoriev <dgreenday@gmail.com>
 *          Vasily Khoruzhick <anarsoul@gmail.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 <plat/regs-iis.h>
#include <asm/mach-types.h>

#include "s3c24xx-i2s.h"

static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd);
static int rx1950_startup(struct snd_pcm_substream *substream);
static int rx1950_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params);
static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *kcontrol, int event);

static unsigned int rates[] = {
	16000,
	44100,
	48000,
};

static struct snd_pcm_hw_constraint_list hw_rates = {
	.count = ARRAY_SIZE(rates),
	.list = rates,
	.mask = 0,
};

static struct snd_soc_jack hp_jack;

static struct snd_soc_jack_pin hp_jack_pins[] = {
	{
		.pin	= "Headphone Jack",
		.mask	= SND_JACK_HEADPHONE,
	},
	{
		.pin	= "Speaker",
		.mask	= SND_JACK_HEADPHONE,
		.invert	= 1,
	},
};

static struct snd_soc_jack_gpio hp_jack_gpios[] = {
	[0] = {
		.gpio			= S3C2410_GPG(12),
		.name			= "hp-gpio",
		.report			= SND_JACK_HEADPHONE,
		.invert			= 1,
		.debounce_time		= 200,
	},
};

static struct snd_soc_ops rx1950_ops = {
	.startup	= rx1950_startup,
	.hw_params	= rx1950_hw_params,
};

/* s3c24xx digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link rx1950_uda1380_dai[] = {
	{
		.name		= "uda1380",
		.stream_name	= "UDA1380 Duplex",
		.cpu_dai_name	= "s3c24xx-iis",
		.codec_dai_name	= "uda1380-hifi",
		.init		= rx1950_uda1380_init,
		.platform_name	= "samsung-audio",
		.codec_name	= "uda1380-codec.0-001a",
		.ops		= &rx1950_ops,
	},
};

static struct snd_soc_card rx1950_asoc = {
	.name = "rx1950",
	.dai_link = rx1950_uda1380_dai,
	.num_links = ARRAY_SIZE(rx1950_uda1380_dai),
};

/* rx1950 machine dapm widgets */
static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	SND_SOC_DAPM_SPK("Speaker", rx1950_spk_power),
};

/* rx1950 machine audio_map */
static const struct snd_soc_dapm_route audio_map[] = {
	/* headphone connected to VOUTLHP, VOUTRHP */
	{"Headphone Jack", NULL, "VOUTLHP"},
	{"Headphone Jack", NULL, "VOUTRHP"},

	/* ext speaker connected to VOUTL, VOUTR  */
	{"Speaker", NULL, "VOUTL"},
	{"Speaker", NULL, "VOUTR"},

	/* mic is connected to VINM */
	{"VINM", NULL, "Mic Jack"},
};

static struct platform_device *s3c24xx_snd_device;

static int rx1950_startup(struct snd_pcm_substream *substream)
{
	struct snd_pcm_runtime *runtime = substream->runtime;

	runtime->hw.rate_min = hw_rates.list[0];
	runtime->hw.rate_max = hw_rates.list[hw_rates.count - 1];
	runtime->hw.rates = SNDRV_PCM_RATE_KNOT;

	return snd_pcm_hw_constraint_list(runtime, 0,
					SNDRV_PCM_HW_PARAM_RATE,
					&hw_rates);
}

static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *kcontrol, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		gpio_set_value(S3C2410_GPA(1), 1);
	else
		gpio_set_value(S3C2410_GPA(1), 0);

	return 0;
}

static int rx1950_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 *cpu_dai = rtd->cpu_dai;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	int div;
	int ret;
	unsigned int rate = params_rate(params);
	int clk_source, fs_mode;

	switch (rate) {
	case 16000:
	case 48000:
		clk_source = S3C24XX_CLKSRC_PCLK;
		fs_mode = S3C2410_IISMOD_256FS;
		div = s3c24xx_i2s_get_clockrate() / (256 * rate);
		if (s3c24xx_i2s_get_clockrate() % (256 * rate) > (128 * rate))
			div++;
		break;
	case 44100:
	case 88200:
		clk_source = S3C24XX_CLKSRC_MPLL;
		fs_mode = S3C2410_IISMOD_384FS;
		div = 1;
		break;
	default:
		printk(KERN_ERR "%s: rate %d is not supported\n",
			__func__, rate);
		return -EINVAL;
	}

	/* 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;

	/* select clock source */
	ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source, rate,
			SND_SOC_CLOCK_OUT);
	if (ret < 0)
		return ret;

	/* set MCLK division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
		fs_mode);
	if (ret < 0)
		return ret;

	/* set BCLK division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
		S3C2410_IISMOD_32FS);
	if (ret < 0)
		return ret;

	/* set prescaler division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
		S3C24XX_PRESCALE(div, div));
	if (ret < 0)
		return ret;

	return 0;
}

static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int err;

	/* Add rx1950 specific widgets */
	err = snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
				  ARRAY_SIZE(uda1380_dapm_widgets));

	if (err)
		return err;

	/* Set up rx1950 specific audio path audio_mapnects */
	err = snd_soc_dapm_add_routes(dapm, audio_map,
				      ARRAY_SIZE(audio_map));

	if (err)
		return err;

	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	snd_soc_dapm_enable_pin(dapm, "Speaker");
	snd_soc_dapm_enable_pin(dapm, "Mic Jack");

	snd_soc_dapm_sync(dapm);

	snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
		&hp_jack);

	snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
		hp_jack_pins);

	snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
		hp_jack_gpios);

	return 0;
}

static int __init rx1950_init(void)
{
	int ret;

	if (!machine_is_rx1950())
		return -ENODEV;

	/* configure some gpios */
	ret = gpio_request(S3C2410_GPA(1), "speaker-power");
	if (ret)
		goto err_gpio;

	ret = gpio_direction_output(S3C2410_GPA(1), 0);
	if (ret)
		goto err_gpio_conf;

	s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
	if (!s3c24xx_snd_device) {
		ret = -ENOMEM;
		goto err_plat_alloc;
	}

	platform_set_drvdata(s3c24xx_snd_device, &rx1950_asoc);
	ret = platform_device_add(s3c24xx_snd_device);

	if (ret) {
		platform_device_put(s3c24xx_snd_device);
		goto err_plat_add;
	}

	return 0;

err_plat_add:
err_plat_alloc:
err_gpio_conf:
	gpio_free(S3C2410_GPA(1));

err_gpio:
	return ret;
}

static void __exit rx1950_exit(void)
{
	platform_device_unregister(s3c24xx_snd_device);
	snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
		hp_jack_gpios);
	gpio_free(S3C2410_GPA(1));
}

module_init(rx1950_init);
module_exit(rx1950_exit);

/* Module information */
MODULE_AUTHOR("Vasily Khoruzhick");
MODULE_DESCRIPTION("ALSA SoC RX1950");
MODULE_LICENSE("GPL");
Commit	Line	Data
81d97802 VK	1	/*
	2	* rx1950.c -- ALSA Soc Audio Layer
	3	*
	4	* Copyright (c) 2010 Vasily Khoruzhick <anarsoul@gmail.com>
	5	*
	6	* Based on smdk2440.c and magician.c
	7	*
	8	* Authors: Graeme Gregory graeme.gregory@wolfsonmicro.com
	9	* Philipp Zabel <philipp.zabel@gmail.com>
	10	* Denis Grigoriev <dgreenday@gmail.com>
	11	* Vasily Khoruzhick <anarsoul@gmail.com>
	12	*
	13	* This program is free software; you can redistribute it and/or modify it
	14	* under the terms of the GNU General Public License as published by the
	15	* Free Software Foundation; either version 2 of the License, or (at your
	16	* option) any later version.
	17	*
	18	*/
	19
81d97802	20	#include <linux/gpio.h>
81d97802	21
81d97802	22	#include <sound/soc.h>
81d97802 VK	23	#include <sound/jack.h>
	24
	25	#include <plat/regs-iis.h>
dedc3cf5 VK	26	#include <asm/mach-types.h>
dedc3cf5 VK	27
81d97802	28	#include "s3c24xx-i2s.h"
81d97802 VK	29
	30	static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd);
	31	static int rx1950_startup(struct snd_pcm_substream *substream);
	32	static int rx1950_hw_params(struct snd_pcm_substream *substream,
	33	struct snd_pcm_hw_params *params);
	34	static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
	35	struct snd_kcontrol *kcontrol, int event);
	36
	37	static unsigned int rates[] = {
	38	16000,
	39	44100,
	40	48000,
81d97802 VK	41	};
	42
	43	static struct snd_pcm_hw_constraint_list hw_rates = {
	44	.count = ARRAY_SIZE(rates),
	45	.list = rates,
	46	.mask = 0,
	47	};
	48
	49	static struct snd_soc_jack hp_jack;
	50
	51	static struct snd_soc_jack_pin hp_jack_pins[] = {
	52	{
	53	.pin = "Headphone Jack",
	54	.mask = SND_JACK_HEADPHONE,
	55	},
	56	{
	57	.pin = "Speaker",
	58	.mask = SND_JACK_HEADPHONE,
	59	.invert = 1,
	60	},
	61	};
	62
	63	static struct snd_soc_jack_gpio hp_jack_gpios[] = {
	64	[0] = {
	65	.gpio = S3C2410_GPG(12),
	66	.name = "hp-gpio",
	67	.report = SND_JACK_HEADPHONE,
	68	.invert = 1,
	69	.debounce_time = 200,
	70	},
	71	};
	72
	73	static struct snd_soc_ops rx1950_ops = {
	74	.startup = rx1950_startup,
	75	.hw_params = rx1950_hw_params,
	76	};
	77
	78	/* s3c24xx digital audio interface glue - connects codec <--> CPU */
	79	static struct snd_soc_dai_link rx1950_uda1380_dai[] = {
	80	{
	81	.name = "uda1380",
	82	.stream_name = "UDA1380 Duplex",
	83	.cpu_dai_name = "s3c24xx-iis",
	84	.codec_dai_name = "uda1380-hifi",
	85	.init = rx1950_uda1380_init,
58bb4072	86	.platform_name = "samsung-audio",
81d97802 VK	87	.codec_name = "uda1380-codec.0-001a",
	88	.ops = &rx1950_ops,
	89	},
	90	};
	91
	92	static struct snd_soc_card rx1950_asoc = {
	93	.name = "rx1950",
	94	.dai_link = rx1950_uda1380_dai,
	95	.num_links = ARRAY_SIZE(rx1950_uda1380_dai),
	96	};
	97
	98	/* rx1950 machine dapm widgets */
	99	static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
	100	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	101	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	102	SND_SOC_DAPM_SPK("Speaker", rx1950_spk_power),
	103	};
	104
	105	/* rx1950 machine audio_map */
	106	static const struct snd_soc_dapm_route audio_map[] = {
	107	/* headphone connected to VOUTLHP, VOUTRHP */
	108	{"Headphone Jack", NULL, "VOUTLHP"},
	109	{"Headphone Jack", NULL, "VOUTRHP"},
	110
	111	/* ext speaker connected to VOUTL, VOUTR */
	112	{"Speaker", NULL, "VOUTL"},
	113	{"Speaker", NULL, "VOUTR"},
	114
	115	/* mic is connected to VINM */
	116	{"VINM", NULL, "Mic Jack"},
	117	};
	118
	119	static struct platform_device *s3c24xx_snd_device;
81d97802 VK	120
	121	static int rx1950_startup(struct snd_pcm_substream *substream)
	122	{
	123	struct snd_pcm_runtime *runtime = substream->runtime;
	124
	125	runtime->hw.rate_min = hw_rates.list[0];
	126	runtime->hw.rate_max = hw_rates.list[hw_rates.count - 1];
	127	runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
	128
	129	return snd_pcm_hw_constraint_list(runtime, 0,
	130	SNDRV_PCM_HW_PARAM_RATE,
	131	&hw_rates);
	132	}
	133
	134	static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
	135	struct snd_kcontrol *kcontrol, int event)
	136	{
	137	if (SND_SOC_DAPM_EVENT_ON(event))
	138	gpio_set_value(S3C2410_GPA(1), 1);
	139	else
	140	gpio_set_value(S3C2410_GPA(1), 0);
	141
	142	return 0;
	143	}
	144
	145	static int rx1950_hw_params(struct snd_pcm_substream *substream,
	146	struct snd_pcm_hw_params *params)
	147	{
	148	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	149	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	150	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	151	int div;
	152	int ret;
	153	unsigned int rate = params_rate(params);
	154	int clk_source, fs_mode;
	155
	156	switch (rate) {
	157	case 16000:
	158	case 48000:
	159	clk_source = S3C24XX_CLKSRC_PCLK;
1fdc7dd5 VK	160	fs_mode = S3C2410_IISMOD_256FS;
	161	div = s3c24xx_i2s_get_clockrate() / (256 * rate);
	162	if (s3c24xx_i2s_get_clockrate() % (256 * rate) > (128 * rate))
81d97802 VK	163	div++;
	164	break;
	165	case 44100:
	166	case 88200:
	167	clk_source = S3C24XX_CLKSRC_MPLL;
ccb3b84f VK	168	fs_mode = S3C2410_IISMOD_384FS;
ccb3b84f VK	169	div = 1;
81d97802 VK	170	break;
	171	default:
	172	printk(KERN_ERR "%s: rate %d is not supported\n",
	173	__func__, rate);
	174	return -EINVAL;
	175	}
	176
	177	/* set codec DAI configuration */
	178	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	179	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	180	if (ret < 0)
	181	return ret;
	182
	183	/* set cpu DAI configuration */
	184	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	185	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	186	if (ret < 0)
	187	return ret;
	188
	189	/* select clock source */
	190	ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source, rate,
	191	SND_SOC_CLOCK_OUT);
	192	if (ret < 0)
	193	return ret;
	194
	195	/* set MCLK division for sample rate */
	196	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
ccb3b84f	197	fs_mode);
81d97802 VK	198	if (ret < 0)
	199	return ret;
	200
	201	/* set BCLK division for sample rate */
	202	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
	203	S3C2410_IISMOD_32FS);
	204	if (ret < 0)
	205	return ret;
	206
	207	/* set prescaler division for sample rate */
	208	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
	209	S3C24XX_PRESCALE(div, div));
	210	if (ret < 0)
	211	return ret;
	212
	213	return 0;
	214	}
	215
	216	static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd)
	217	{
	218	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	219	struct snd_soc_dapm_context *dapm = &codec->dapm;
81d97802 VK	220	int err;
	221
	222	/* Add rx1950 specific widgets */
ce6120cc	223	err = snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
81d97802 VK	224	ARRAY_SIZE(uda1380_dapm_widgets));
	225
	226	if (err)
	227	return err;
	228
	229	/* Set up rx1950 specific audio path audio_mapnects */
ce6120cc	230	err = snd_soc_dapm_add_routes(dapm, audio_map,
81d97802 VK	231	ARRAY_SIZE(audio_map));
	232
	233	if (err)
	234	return err;
	235
ce6120cc LG	236	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
ce6120cc LG	237	snd_soc_dapm_enable_pin(dapm, "Speaker");
b60fc60c	238	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
81d97802	239
ce6120cc	240	snd_soc_dapm_sync(dapm);
81d97802 VK	241
	242	snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
	243	&hp_jack);
	244
	245	snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
	246	hp_jack_pins);
	247
	248	snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
	249	hp_jack_gpios);
	250
	251	return 0;
	252	}
	253
	254	static int __init rx1950_init(void)
	255	{
	256	int ret;
	257
dedc3cf5 VK	258	if (!machine_is_rx1950())
	259	return -ENODEV;
	260
81d97802 VK	261	/* configure some gpios */
	262	ret = gpio_request(S3C2410_GPA(1), "speaker-power");
	263	if (ret)
	264	goto err_gpio;
	265
	266	ret = gpio_direction_output(S3C2410_GPA(1), 0);
	267	if (ret)
	268	goto err_gpio_conf;
	269
	270	s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
	271	if (!s3c24xx_snd_device) {
	272	ret = -ENOMEM;
	273	goto err_plat_alloc;
	274	}
	275
	276	platform_set_drvdata(s3c24xx_snd_device, &rx1950_asoc);
	277	ret = platform_device_add(s3c24xx_snd_device);
	278
	279	if (ret) {
	280	platform_device_put(s3c24xx_snd_device);
	281	goto err_plat_add;
	282	}
	283
81d97802 VK	284	return 0;
81d97802 VK	285
81d97802 VK	286	err_plat_add:
	287	err_plat_alloc:
	288	err_gpio_conf:
	289	gpio_free(S3C2410_GPA(1));
	290
	291	err_gpio:
	292	return ret;
	293	}
	294
	295	static void __exit rx1950_exit(void)
	296	{
	297	platform_device_unregister(s3c24xx_snd_device);
	298	snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
	299	hp_jack_gpios);
81d97802 VK	300	gpio_free(S3C2410_GPA(1));
	301	}
	302
	303	module_init(rx1950_init);
	304	module_exit(rx1950_exit);
	305
	306	/* Module information */
	307	MODULE_AUTHOR("Vasily Khoruzhick");
	308	MODULE_DESCRIPTION("ALSA SoC RX1950");
	309	MODULE_LICENSE("GPL");