[mirror_ubuntu-zesty-kernel.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/types.h>
#include <linux/gpio.h>
#include <linux/module.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,
	},
};

/* 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 snd_soc_card rx1950_asoc = {
	.name = "rx1950",
	.dai_link = rx1950_uda1380_dai,
	.num_links = ARRAY_SIZE(rx1950_uda1380_dai),

	.dapm_widgets = uda1380_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
};

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;

	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_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
b8487928	20	#include <linux/types.h>
81d97802	21	#include <linux/gpio.h>
da155d5b	22	#include <linux/module.h>
81d97802	23
81d97802	24	#include <sound/soc.h>
81d97802 VK	25	#include <sound/jack.h>
	26
	27	#include <plat/regs-iis.h>
dedc3cf5 VK	28	#include <asm/mach-types.h>
dedc3cf5 VK	29
81d97802	30	#include "s3c24xx-i2s.h"
81d97802 VK	31
	32	static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd);
	33	static int rx1950_startup(struct snd_pcm_substream *substream);
	34	static int rx1950_hw_params(struct snd_pcm_substream *substream,
	35	struct snd_pcm_hw_params *params);
	36	static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
	37	struct snd_kcontrol *kcontrol, int event);
	38
	39	static unsigned int rates[] = {
	40	16000,
	41	44100,
	42	48000,
81d97802 VK	43	};
	44
	45	static struct snd_pcm_hw_constraint_list hw_rates = {
	46	.count = ARRAY_SIZE(rates),
	47	.list = rates,
	48	.mask = 0,
	49	};
	50
	51	static struct snd_soc_jack hp_jack;
	52
	53	static struct snd_soc_jack_pin hp_jack_pins[] = {
	54	{
	55	.pin = "Headphone Jack",
	56	.mask = SND_JACK_HEADPHONE,
	57	},
	58	{
	59	.pin = "Speaker",
	60	.mask = SND_JACK_HEADPHONE,
	61	.invert = 1,
	62	},
	63	};
	64
	65	static struct snd_soc_jack_gpio hp_jack_gpios[] = {
	66	[0] = {
	67	.gpio = S3C2410_GPG(12),
	68	.name = "hp-gpio",
	69	.report = SND_JACK_HEADPHONE,
	70	.invert = 1,
	71	.debounce_time = 200,
	72	},
	73	};
	74
	75	static struct snd_soc_ops rx1950_ops = {
	76	.startup = rx1950_startup,
	77	.hw_params = rx1950_hw_params,
	78	};
	79
	80	/* s3c24xx digital audio interface glue - connects codec <--> CPU */
	81	static struct snd_soc_dai_link rx1950_uda1380_dai[] = {
	82	{
	83	.name = "uda1380",
	84	.stream_name = "UDA1380 Duplex",
	85	.cpu_dai_name = "s3c24xx-iis",
	86	.codec_dai_name = "uda1380-hifi",
	87	.init = rx1950_uda1380_init,
58bb4072	88	.platform_name = "samsung-audio",
81d97802 VK	89	.codec_name = "uda1380-codec.0-001a",
	90	.ops = &rx1950_ops,
	91	},
	92	};
	93
81d97802 VK	94	/* rx1950 machine dapm widgets */
	95	static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
	96	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	97	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	98	SND_SOC_DAPM_SPK("Speaker", rx1950_spk_power),
	99	};
	100
	101	/* rx1950 machine audio_map */
	102	static const struct snd_soc_dapm_route audio_map[] = {
	103	/* headphone connected to VOUTLHP, VOUTRHP */
	104	{"Headphone Jack", NULL, "VOUTLHP"},
	105	{"Headphone Jack", NULL, "VOUTRHP"},
	106
	107	/* ext speaker connected to VOUTL, VOUTR */
	108	{"Speaker", NULL, "VOUTL"},
	109	{"Speaker", NULL, "VOUTR"},
	110
	111	/* mic is connected to VINM */
	112	{"VINM", NULL, "Mic Jack"},
	113	};
	114
8ae23229 MB	115	static struct snd_soc_card rx1950_asoc = {
	116	.name = "rx1950",
	117	.dai_link = rx1950_uda1380_dai,
	118	.num_links = ARRAY_SIZE(rx1950_uda1380_dai),
	119
	120	.dapm_widgets = uda1380_dapm_widgets,
	121	.num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
	122	.dapm_routes = audio_map,
	123	.num_dapm_routes = ARRAY_SIZE(audio_map),
	124	};
	125
81d97802	126	static struct platform_device *s3c24xx_snd_device;
81d97802 VK	127
	128	static int rx1950_startup(struct snd_pcm_substream *substream)
	129	{
	130	struct snd_pcm_runtime *runtime = substream->runtime;
	131
	132	runtime->hw.rate_min = hw_rates.list[0];
	133	runtime->hw.rate_max = hw_rates.list[hw_rates.count - 1];
	134	runtime->hw.rates = SNDRV_PCM_RATE_KNOT;
	135
	136	return snd_pcm_hw_constraint_list(runtime, 0,
	137	SNDRV_PCM_HW_PARAM_RATE,
	138	&hw_rates);
	139	}
	140
	141	static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
	142	struct snd_kcontrol *kcontrol, int event)
	143	{
	144	if (SND_SOC_DAPM_EVENT_ON(event))
	145	gpio_set_value(S3C2410_GPA(1), 1);
	146	else
	147	gpio_set_value(S3C2410_GPA(1), 0);
	148
	149	return 0;
	150	}
	151
	152	static int rx1950_hw_params(struct snd_pcm_substream *substream,
	153	struct snd_pcm_hw_params *params)
	154	{
	155	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	156	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	157	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	158	int div;
	159	int ret;
	160	unsigned int rate = params_rate(params);
	161	int clk_source, fs_mode;
	162
	163	switch (rate) {
	164	case 16000:
	165	case 48000:
	166	clk_source = S3C24XX_CLKSRC_PCLK;
1fdc7dd5 VK	167	fs_mode = S3C2410_IISMOD_256FS;
	168	div = s3c24xx_i2s_get_clockrate() / (256 * rate);
	169	if (s3c24xx_i2s_get_clockrate() % (256 * rate) > (128 * rate))
81d97802 VK	170	div++;
	171	break;
	172	case 44100:
	173	case 88200:
	174	clk_source = S3C24XX_CLKSRC_MPLL;
ccb3b84f VK	175	fs_mode = S3C2410_IISMOD_384FS;
ccb3b84f VK	176	div = 1;
81d97802 VK	177	break;
	178	default:
	179	printk(KERN_ERR "%s: rate %d is not supported\n",
	180	__func__, rate);
	181	return -EINVAL;
	182	}
	183
	184	/* set codec DAI configuration */
	185	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	186	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	187	if (ret < 0)
	188	return ret;
	189
	190	/* set cpu DAI configuration */
	191	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	192	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	193	if (ret < 0)
	194	return ret;
	195
	196	/* select clock source */
	197	ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source, rate,
	198	SND_SOC_CLOCK_OUT);
	199	if (ret < 0)
	200	return ret;
	201
	202	/* set MCLK division for sample rate */
	203	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
ccb3b84f	204	fs_mode);
81d97802 VK	205	if (ret < 0)
	206	return ret;
	207
	208	/* set BCLK division for sample rate */
	209	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
	210	S3C2410_IISMOD_32FS);
	211	if (ret < 0)
	212	return ret;
	213
	214	/* set prescaler division for sample rate */
	215	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
	216	S3C24XX_PRESCALE(div, div));
	217	if (ret < 0)
	218	return ret;
	219
	220	return 0;
	221	}
	222
	223	static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd)
	224	{
	225	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	226	struct snd_soc_dapm_context *dapm = &codec->dapm;
81d97802 VK	227	int err;
81d97802 VK	228
ce6120cc LG	229	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
ce6120cc LG	230	snd_soc_dapm_enable_pin(dapm, "Speaker");
b60fc60c	231	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
81d97802	232
81d97802 VK	233	snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
	234	&hp_jack);
	235
	236	snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
	237	hp_jack_pins);
	238
	239	snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
	240	hp_jack_gpios);
	241
	242	return 0;
	243	}
	244
	245	static int __init rx1950_init(void)
	246	{
	247	int ret;
	248
dedc3cf5 VK	249	if (!machine_is_rx1950())
	250	return -ENODEV;
	251
81d97802 VK	252	/* configure some gpios */
	253	ret = gpio_request(S3C2410_GPA(1), "speaker-power");
	254	if (ret)
	255	goto err_gpio;
	256
	257	ret = gpio_direction_output(S3C2410_GPA(1), 0);
	258	if (ret)
	259	goto err_gpio_conf;
	260
	261	s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
	262	if (!s3c24xx_snd_device) {
	263	ret = -ENOMEM;
	264	goto err_plat_alloc;
	265	}
	266
	267	platform_set_drvdata(s3c24xx_snd_device, &rx1950_asoc);
	268	ret = platform_device_add(s3c24xx_snd_device);
	269
	270	if (ret) {
	271	platform_device_put(s3c24xx_snd_device);
	272	goto err_plat_add;
	273	}
	274
81d97802 VK	275	return 0;
81d97802 VK	276
81d97802 VK	277	err_plat_add:
	278	err_plat_alloc:
	279	err_gpio_conf:
	280	gpio_free(S3C2410_GPA(1));
	281
	282	err_gpio:
	283	return ret;
	284	}
	285
	286	static void __exit rx1950_exit(void)
	287	{
	288	platform_device_unregister(s3c24xx_snd_device);
	289	snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
	290	hp_jack_gpios);
81d97802 VK	291	gpio_free(S3C2410_GPA(1));
	292	}
	293
	294	module_init(rx1950_init);
	295	module_exit(rx1950_exit);
	296
	297	/* Module information */
	298	MODULE_AUTHOR("Vasily Khoruzhick");
	299	MODULE_DESCRIPTION("ALSA SoC RX1950");
	300	MODULE_LICENSE("GPL");