[linux-2.6-block.git] / sound / soc / samsung / rx1950_uda1380.c

// SPDX-License-Identifier: GPL-2.0+
//
// 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>

#include <linux/types.h>
#include <linux/gpio.h>
#include <linux/module.h>

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

#include <mach/gpio-samsung.h>
#include "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 const unsigned int rates[] = {
	16000,
	44100,
	48000,
};

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

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	= "s3c24xx-iis",
		.codec_name	= "uda1380-codec.0-001a",
		.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
				  SND_SOC_DAIFMT_CBS_CFS,
		.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",
	.owner = THIS_MODULE,
	.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;

	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;
	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;
	}

	/* 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)
{
	snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE,
		&hp_jack, hp_jack_pins, ARRAY_SIZE(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);
	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
2dab7021 SN	1	// SPDX-License-Identifier: GPL-2.0+
	2	//
	3	// rx1950.c - ALSA SoC Audio Layer
	4	//
	5	// Copyright (c) 2010 Vasily Khoruzhick <anarsoul@gmail.com>
	6	//
	7	// Based on smdk2440.c and magician.c
	8	//
	9	// Authors: Graeme Gregory graeme.gregory@wolfsonmicro.com
	10	// Philipp Zabel <philipp.zabel@gmail.com>
	11	// Denis Grigoriev <dgreenday@gmail.com>
	12	// Vasily Khoruzhick <anarsoul@gmail.com>
81d97802	13
b8487928	14	#include <linux/types.h>
81d97802	15	#include <linux/gpio.h>
da155d5b	16	#include <linux/module.h>
81d97802	17
81d97802	18	#include <sound/soc.h>
81d97802 VK	19	#include <sound/jack.h>
81d97802 VK	20
abffae64	21	#include <mach/gpio-samsung.h>
5d229ce5	22	#include "regs-iis.h"
dedc3cf5 VK	23	#include <asm/mach-types.h>
dedc3cf5 VK	24
81d97802	25	#include "s3c24xx-i2s.h"
81d97802 VK	26
	27	static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd);
	28	static int rx1950_startup(struct snd_pcm_substream *substream);
	29	static int rx1950_hw_params(struct snd_pcm_substream *substream,
	30	struct snd_pcm_hw_params *params);
	31	static int rx1950_spk_power(struct snd_soc_dapm_widget *w,
	32	struct snd_kcontrol *kcontrol, int event);
	33
7a5b8ba4	34	static const unsigned int rates[] = {
81d97802 VK	35	16000,
	36	44100,
	37	48000,
81d97802 VK	38	};
81d97802 VK	39
7a5b8ba4	40	static const struct snd_pcm_hw_constraint_list hw_rates = {
81d97802 VK	41	.count = ARRAY_SIZE(rates),
81d97802 VK	42	.list = rates,
81d97802 VK	43	};
	44
	45	static struct snd_soc_jack hp_jack;
	46
	47	static struct snd_soc_jack_pin hp_jack_pins[] = {
	48	{
	49	.pin = "Headphone Jack",
	50	.mask = SND_JACK_HEADPHONE,
	51	},
	52	{
	53	.pin = "Speaker",
	54	.mask = SND_JACK_HEADPHONE,
	55	.invert = 1,
	56	},
	57	};
	58
	59	static struct snd_soc_jack_gpio hp_jack_gpios[] = {
	60	[0] = {
	61	.gpio = S3C2410_GPG(12),
	62	.name = "hp-gpio",
	63	.report = SND_JACK_HEADPHONE,
	64	.invert = 1,
	65	.debounce_time = 200,
	66	},
	67	};
	68
	69	static struct snd_soc_ops rx1950_ops = {
	70	.startup = rx1950_startup,
	71	.hw_params = rx1950_hw_params,
	72	};
	73
	74	/* s3c24xx digital audio interface glue - connects codec <--> CPU */
	75	static struct snd_soc_dai_link rx1950_uda1380_dai[] = {
	76	{
	77	.name = "uda1380",
	78	.stream_name = "UDA1380 Duplex",
	79	.cpu_dai_name = "s3c24xx-iis",
	80	.codec_dai_name = "uda1380-hifi",
	81	.init = rx1950_uda1380_init,
a08485d8	82	.platform_name = "s3c24xx-iis",
81d97802	83	.codec_name = "uda1380-codec.0-001a",
5f0acedd LPC	84	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
5f0acedd LPC	85	SND_SOC_DAIFMT_CBS_CFS,
81d97802 VK	86	.ops = &rx1950_ops,
	87	},
	88	};
	89
81d97802 VK	90	/* rx1950 machine dapm widgets */
	91	static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
	92	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	93	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	94	SND_SOC_DAPM_SPK("Speaker", rx1950_spk_power),
	95	};
	96
	97	/* rx1950 machine audio_map */
	98	static const struct snd_soc_dapm_route audio_map[] = {
	99	/* headphone connected to VOUTLHP, VOUTRHP */
	100	{"Headphone Jack", NULL, "VOUTLHP"},
	101	{"Headphone Jack", NULL, "VOUTRHP"},
	102
	103	/* ext speaker connected to VOUTL, VOUTR */
	104	{"Speaker", NULL, "VOUTL"},
	105	{"Speaker", NULL, "VOUTR"},
	106
	107	/* mic is connected to VINM */
	108	{"VINM", NULL, "Mic Jack"},
	109	};
	110
8ae23229 MB	111	static struct snd_soc_card rx1950_asoc = {
8ae23229 MB	112	.name = "rx1950",
095d79dc	113	.owner = THIS_MODULE,
8ae23229 MB	114	.dai_link = rx1950_uda1380_dai,
	115	.num_links = ARRAY_SIZE(rx1950_uda1380_dai),
	116
	117	.dapm_widgets = uda1380_dapm_widgets,
	118	.num_dapm_widgets = ARRAY_SIZE(uda1380_dapm_widgets),
	119	.dapm_routes = audio_map,
	120	.num_dapm_routes = ARRAY_SIZE(audio_map),
	121	};
	122
81d97802	123	static struct platform_device *s3c24xx_snd_device;
81d97802 VK	124
	125	static int rx1950_startup(struct snd_pcm_substream *substream)
	126	{
	127	struct snd_pcm_runtime *runtime = substream->runtime;
	128
81d97802 VK	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;
81d97802 VK	150	int div;
	151	int ret;
	152	unsigned int rate = params_rate(params);
	153	int clk_source, fs_mode;
	154
	155	switch (rate) {
	156	case 16000:
	157	case 48000:
	158	clk_source = S3C24XX_CLKSRC_PCLK;
1fdc7dd5 VK	159	fs_mode = S3C2410_IISMOD_256FS;
	160	div = s3c24xx_i2s_get_clockrate() / (256 * rate);
	161	if (s3c24xx_i2s_get_clockrate() % (256 * rate) > (128 * rate))
81d97802 VK	162	div++;
	163	break;
	164	case 44100:
	165	case 88200:
	166	clk_source = S3C24XX_CLKSRC_MPLL;
ccb3b84f VK	167	fs_mode = S3C2410_IISMOD_384FS;
ccb3b84f VK	168	div = 1;
81d97802 VK	169	break;
	170	default:
	171	printk(KERN_ERR "%s: rate %d is not supported\n",
	172	__func__, rate);
	173	return -EINVAL;
	174	}
	175
81d97802 VK	176	/* select clock source */
	177	ret = snd_soc_dai_set_sysclk(cpu_dai, clk_source, rate,
	178	SND_SOC_CLOCK_OUT);
	179	if (ret < 0)
	180	return ret;
	181
	182	/* set MCLK division for sample rate */
	183	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
ccb3b84f	184	fs_mode);
81d97802 VK	185	if (ret < 0)
	186	return ret;
	187
	188	/* set BCLK division for sample rate */
	189	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
	190	S3C2410_IISMOD_32FS);
	191	if (ret < 0)
	192	return ret;
	193
	194	/* set prescaler division for sample rate */
	195	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
	196	S3C24XX_PRESCALE(div, div));
	197	if (ret < 0)
	198	return ret;
	199
	200	return 0;
	201	}
	202
	203	static int rx1950_uda1380_init(struct snd_soc_pcm_runtime *rtd)
	204	{
e9c9a723 LPC	205	snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE,
e9c9a723 LPC	206	&hp_jack, hp_jack_pins, ARRAY_SIZE(hp_jack_pins));
81d97802 VK	207
	208	snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
	209	hp_jack_gpios);
	210
	211	return 0;
e1d4d3c8 SW	212	}
e1d4d3c8 SW	213
81d97802 VK	214	static int __init rx1950_init(void)
	215	{
	216	int ret;
	217
dedc3cf5 VK	218	if (!machine_is_rx1950())
	219	return -ENODEV;
	220
81d97802 VK	221	/* configure some gpios */
	222	ret = gpio_request(S3C2410_GPA(1), "speaker-power");
	223	if (ret)
	224	goto err_gpio;
	225
	226	ret = gpio_direction_output(S3C2410_GPA(1), 0);
	227	if (ret)
	228	goto err_gpio_conf;
	229
	230	s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
	231	if (!s3c24xx_snd_device) {
	232	ret = -ENOMEM;
	233	goto err_plat_alloc;
	234	}
	235
	236	platform_set_drvdata(s3c24xx_snd_device, &rx1950_asoc);
	237	ret = platform_device_add(s3c24xx_snd_device);
	238
	239	if (ret) {
	240	platform_device_put(s3c24xx_snd_device);
	241	goto err_plat_add;
	242	}
	243
81d97802 VK	244	return 0;
81d97802 VK	245
81d97802 VK	246	err_plat_add:
	247	err_plat_alloc:
	248	err_gpio_conf:
	249	gpio_free(S3C2410_GPA(1));
	250
	251	err_gpio:
	252	return ret;
	253	}
	254
	255	static void __exit rx1950_exit(void)
	256	{
	257	platform_device_unregister(s3c24xx_snd_device);
81d97802 VK	258	gpio_free(S3C2410_GPA(1));
	259	}
	260
	261	module_init(rx1950_init);
	262	module_exit(rx1950_exit);
	263
	264	/* Module information */
	265	MODULE_AUTHOR("Vasily Khoruzhick");
	266	MODULE_DESCRIPTION("ALSA SoC RX1950");
	267	MODULE_LICENSE("GPL");