[mirror_ubuntu-bionic-kernel.git] / sound / soc / s3c24xx / smartq_wm8987.c

/* sound/soc/s3c24xx/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-dapm.h>
#include <sound/jack.h>

#include <asm/mach-types.h>

#include "s3c-dma.h"
#include "s3c64xx-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->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	struct s3c_i2sv2_rate_calc div;
	unsigned int clk = 0;
	int ret;

	s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
				s3c_i2sv2_get_clock(cpu_dai));

	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;

	/* 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;

	/* set MCLK division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_I2SV2_DIV_RCLK, div.fs_div);
	if (ret < 0)
		return ret;

	/* set prescaler division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_I2SV2_DIV_PRESCALER,
				     div.clk_div - 1);
	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_codec *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(&snd_soc_smartq, "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	= "s3c64xx-i2s.0",
		.codec_dai_name	= "wm8750-hifi",
		.platform_name	= "s3c24xx-pcm-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
ce93a370 MC	1	/* sound/soc/s3c24xx/smartq_wm8987.c
	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>
	22	#include <sound/soc-dapm.h>
	23	#include <sound/jack.h>
	24
	25	#include <asm/mach-types.h>
	26
	27	#include "s3c-dma.h"
	28	#include "s3c64xx-i2s.h"
	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;
	42	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	43	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	44	struct s3c_i2sv2_rate_calc div;
	45	unsigned int clk = 0;
	46	int ret;
	47
	48	s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
	49	s3c_i2sv2_get_clock(cpu_dai));
	50
	51	switch (params_rate(params)) {
	52	case 8000:
	53	case 16000:
	54	case 32000:
	55	case 48000:
	56	case 96000:
	57	clk = 12288000;
	58	break;
	59	case 11025:
	60	case 22050:
	61	case 44100:
	62	case 88200:
	63	clk = 11289600;
	64	break;
65	}
66
67	/* set codec DAI configuration */
68	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
69	SND_SOC_DAIFMT_NB_NF \|
70	SND_SOC_DAIFMT_CBS_CFS);
71	if (ret < 0)
72	return ret;
73
74	/* set cpu DAI configuration */
75	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
76	SND_SOC_DAIFMT_NB_NF \|
77	SND_SOC_DAIFMT_CBS_CFS);
78	if (ret < 0)
79	return ret;
80
81	/* set the codec system clock for DAC and ADC */
82	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
83	SND_SOC_CLOCK_IN);
84	if (ret < 0)
85	return ret;
86
87	/* set MCLK division for sample rate */
88	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_I2SV2_DIV_RCLK, div.fs_div);
89	if (ret < 0)
90	return ret;
91
92	/* set prescaler division for sample rate */
93	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C_I2SV2_DIV_PRESCALER,
94	div.clk_div - 1);
95	if (ret < 0)
96	return ret;
97
98	return 0;
99	}
100
101	/*
102	* SmartQ WM8987 HiFi DAI operations.
103	*/
104	static struct snd_soc_ops smartq_hifi_ops = {
105	.hw_params = smartq_hifi_hw_params,
106	};
107
108	static struct snd_soc_jack smartq_jack;
109
110	static struct snd_soc_jack_pin smartq_jack_pins[] = {
111	/* Disable speaker when headphone is plugged in */
112	{
113	.pin = "Internal Speaker",
114	.mask = SND_JACK_HEADPHONE,
ce93a370 MC	115	},
	116	};
	117
	118	static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
	119	{
	120	.gpio = S3C64XX_GPL(12),
	121	.name = "headphone detect",
	122	.report = SND_JACK_HEADPHONE,
	123	.debounce_time = 200,
	124	},
	125	};
	126
	127	static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
	128	SOC_DAPM_PIN_SWITCH("Internal Speaker"),
	129	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
	130	SOC_DAPM_PIN_SWITCH("Internal Mic"),
	131	};
	132
	133	static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
	134	struct snd_kcontrol *k,
	135	int event)
	136	{
	137	gpio_set_value(S3C64XX_GPK(12), SND_SOC_DAPM_EVENT_OFF(event));
	138
	139	return 0;
	140	}
	141
	142	static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
	143	SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
	144	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	145	SND_SOC_DAPM_MIC("Internal Mic", NULL),
	146	};
	147
	148	static const struct snd_soc_dapm_route audio_map[] = {
	149	{"Headphone Jack", NULL, "LOUT2"},
	150	{"Headphone Jack", NULL, "ROUT2"},
	151
	152	{"Internal Speaker", NULL, "LOUT2"},
	153	{"Internal Speaker", NULL, "ROUT2"},
	154
	155	{"Mic Bias", NULL, "Internal Mic"},
	156	{"LINPUT2", NULL, "Mic Bias"},
	157	};
	158
	159	static int smartq_wm8987_init(struct snd_soc_codec *codec)
	160	{
ce6120cc	161	struct snd_soc_dapm_context *dapm = &codec->dapm;
ce93a370 MC	162	int err = 0;
	163
	164	/* Add SmartQ specific widgets */
ce6120cc	165	snd_soc_dapm_new_controls(dapm, wm8987_dapm_widgets,
ce93a370 MC	166	ARRAY_SIZE(wm8987_dapm_widgets));
	167
	168	/* add SmartQ specific controls */
	169	err = snd_soc_add_controls(codec, wm8987_smartq_controls,
	170	ARRAY_SIZE(wm8987_smartq_controls));
	171
	172	if (err < 0)
	173	return err;
	174
	175	/* setup SmartQ specific audio path */
ce6120cc	176	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
ce93a370 MC	177
ce93a370 MC	178	/* set endpoints to not connected */
ce6120cc LG	179	snd_soc_dapm_nc_pin(dapm, "LINPUT1");
	180	snd_soc_dapm_nc_pin(dapm, "RINPUT1");
	181	snd_soc_dapm_nc_pin(dapm, "OUT3");
	182	snd_soc_dapm_nc_pin(dapm, "ROUT1");
ce93a370 MC	183
ce93a370 MC	184	/* set endpoints to default off mode */
ce6120cc LG	185	snd_soc_dapm_enable_pin(dapm, "Internal Speaker");
	186	snd_soc_dapm_enable_pin(dapm, "Internal Mic");
	187	snd_soc_dapm_disable_pin(dapm, "Headphone Jack");
ce93a370	188
ce6120cc	189	err = snd_soc_dapm_sync(dapm);
ce93a370 MC	190	if (err)
	191	return err;
	192
	193	/* Headphone jack detection */
	194	err = snd_soc_jack_new(&snd_soc_smartq, "Headphone Jack",
	195	SND_JACK_HEADPHONE, &smartq_jack);
	196	if (err)
	197	return err;
	198
	199	err = snd_soc_jack_add_pins(&smartq_jack, ARRAY_SIZE(smartq_jack_pins),
	200	smartq_jack_pins);
	201	if (err)
	202	return err;
	203
	204	err = snd_soc_jack_add_gpios(&smartq_jack,
	205	ARRAY_SIZE(smartq_jack_gpios),
	206	smartq_jack_gpios);
	207
	208	return err;
	209	}
	210
	211	static struct snd_soc_dai_link smartq_dai[] = {
	212	{
	213	.name = "wm8987",
	214	.stream_name = "SmartQ Hi-Fi",
f0fba2ad LG	215	.cpu_dai_name = "s3c64xx-i2s.0",
	216	.codec_dai_name = "wm8750-hifi",
	217	.platform_name = "s3c24xx-pcm-audio",
	218	.codec_name = "wm8750-codec.0-0x1a",
ce93a370 MC	219	.init = smartq_wm8987_init,
	220	.ops = &smartq_hifi_ops,
	221	},
	222	};
	223
	224	static struct snd_soc_card snd_soc_smartq = {
	225	.name = "SmartQ",
ce93a370 MC	226	.dai_link = smartq_dai,
	227	.num_links = ARRAY_SIZE(smartq_dai),
	228	};
	229
ce93a370 MC	230	static struct platform_device *smartq_snd_device;
	231
	232	static int __init smartq_init(void)
	233	{
	234	int ret;
	235
	236	if (!machine_is_smartq7() && !machine_is_smartq5()) {
	237	pr_info("Only SmartQ is supported by this ASoC driver\n");
	238	return -ENODEV;
	239	}
	240
	241	smartq_snd_device = platform_device_alloc("soc-audio", -1);
	242	if (!smartq_snd_device)
	243	return -ENOMEM;
	244
f0fba2ad	245	platform_set_drvdata(smartq_snd_device, &snd_soc_smartq);
ce93a370 MC	246
	247	ret = platform_device_add(smartq_snd_device);
	248	if (ret) {
	249	platform_device_put(smartq_snd_device);
	250	return ret;
	251	}
	252
	253	/* Initialise GPIOs used by amplifiers */
	254	ret = gpio_request(S3C64XX_GPK(12), "amplifiers shutdown");
	255	if (ret) {
	256	dev_err(&smartq_snd_device->dev, "Failed to register GPK12\n");
	257	goto err_unregister_device;
	258	}
	259
	260	/* Disable amplifiers */
	261	ret = gpio_direction_output(S3C64XX_GPK(12), 1);
	262	if (ret) {
	263	dev_err(&smartq_snd_device->dev, "Failed to configure GPK12\n");
	264	goto err_free_gpio_amp_shut;
	265	}
	266
	267	return 0;
	268
	269	err_free_gpio_amp_shut:
	270	gpio_free(S3C64XX_GPK(12));
	271	err_unregister_device:
	272	platform_device_unregister(smartq_snd_device);
	273
	274	return ret;
	275	}
	276
	277	static void __exit smartq_exit(void)
	278	{
	279	snd_soc_jack_free_gpios(&smartq_jack, ARRAY_SIZE(smartq_jack_gpios),
	280	smartq_jack_gpios);
	281
	282	platform_device_unregister(smartq_snd_device);
	283	}
	284
	285	module_init(smartq_init);
	286	module_exit(smartq_exit);
	287
	288	/* Module information */
	289	MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
	290	MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
	291	MODULE_LICENSE("GPL");