[deliverable/linux.git] / sound / soc / samsung / speyside_wm8962.c

/*
 * Speyside with WM8962 audio support
 *
 * Copyright 2011 Wolfson Microelectronics
 *
 * 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 <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <linux/gpio.h>
#include <linux/module.h>

#include "../codecs/wm8962.h"

static int sample_rate = 44100;

static int speyside_wm8962_set_bias_level(struct snd_soc_card *card,
					  struct snd_soc_dapm_context *dapm,
					  enum snd_soc_bias_level level)
{
	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	int ret;

	if (dapm->dev != codec_dai->dev)
		return 0;

	switch (level) {
	case SND_SOC_BIAS_PREPARE:
		if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
			ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
						  WM8962_FLL_MCLK, 32768,
						  sample_rate * 512);
			if (ret < 0)
				pr_err("Failed to start FLL: %d\n", ret);

			ret = snd_soc_dai_set_sysclk(codec_dai,
						     WM8962_SYSCLK_FLL,
						     sample_rate * 512,
						     SND_SOC_CLOCK_IN);
			if (ret < 0) {
				pr_err("Failed to set SYSCLK: %d\n", ret);
				return ret;
			}
		}
		break;

	default:
		break;
	}

	return 0;
}

static int speyside_wm8962_set_bias_level_post(struct snd_soc_card *card,
					       struct snd_soc_dapm_context *dapm,
					       enum snd_soc_bias_level level)
{
	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	int ret;

	if (dapm->dev != codec_dai->dev)
		return 0;

	switch (level) {
	case SND_SOC_BIAS_STANDBY:
		ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
					     32768, SND_SOC_CLOCK_IN);
		if (ret < 0) {
			pr_err("Failed to switch away from FLL: %d\n", ret);
			return ret;
		}

		ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
					  0, 0, 0);
		if (ret < 0) {
			pr_err("Failed to stop FLL: %d\n", ret);
			return ret;
		}
		break;

	default:
		break;
	}

	dapm->bias_level = level;

	return 0;
}

static int speyside_wm8962_hw_params(struct snd_pcm_substream *substream,
			      struct snd_pcm_hw_params *params)
{
	sample_rate = params_rate(params);

	return 0;
}

static struct snd_soc_ops speyside_wm8962_ops = {
	.hw_params = speyside_wm8962_hw_params,
};

static struct snd_soc_dai_link speyside_wm8962_dai[] = {
	{
		.name = "CPU",
		.stream_name = "CPU",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm8962",
		.platform_name = "samsung-audio",
		.codec_name = "wm8962.1-001a",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
		.ops = &speyside_wm8962_ops,
	},
};

static const struct snd_kcontrol_new controls[] = {
	SOC_DAPM_PIN_SWITCH("Main Speaker"),
	SOC_DAPM_PIN_SWITCH("DMIC"),
};

static struct snd_soc_dapm_widget widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),

	SND_SOC_DAPM_MIC("DMIC", NULL),
	SND_SOC_DAPM_MIC("AMIC", NULL),

	SND_SOC_DAPM_SPK("Main Speaker", NULL),
};

static struct snd_soc_dapm_route audio_paths[] = {
	{ "Headphone", NULL, "HPOUTL" },
	{ "Headphone", NULL, "HPOUTR" },

	{ "Main Speaker", NULL, "SPKOUTL" },
	{ "Main Speaker", NULL, "SPKOUTR" },

	{ "Headset Mic", NULL, "MICBIAS" },
	{ "IN4L", NULL, "Headset Mic" },
	{ "IN4R", NULL, "Headset Mic" },

	{ "AMIC", NULL, "MICBIAS" },
	{ "IN1L", NULL, "AMIC" },
	{ "IN1R", NULL, "AMIC" },

	{ "DMIC", NULL, "MICBIAS" },
	{ "DMICDAT", NULL, "DMIC" },
};

static struct snd_soc_jack speyside_wm8962_headset;

/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin speyside_wm8962_headset_pins[] = {
	{
		.pin = "Headset Mic",
		.mask = SND_JACK_MICROPHONE,
	},
	{
		.pin = "Headphone",
		.mask = SND_JACK_MICROPHONE,
	},
};

static int speyside_wm8962_late_probe(struct snd_soc_card *card)
{
	struct snd_soc_codec *codec = card->rtd[0].codec;
	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	int ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
				     32768, SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	ret = snd_soc_jack_new(codec, "Headset",
			       SND_JACK_HEADSET | SND_JACK_BTN_0,
			       &speyside_wm8962_headset);
	if (ret)
		return ret;

	ret = snd_soc_jack_add_pins(&speyside_wm8962_headset,
				    ARRAY_SIZE(speyside_wm8962_headset_pins),
				    speyside_wm8962_headset_pins);
	if (ret)
		return ret;

	wm8962_mic_detect(codec, &speyside_wm8962_headset);

	return 0;
}

static struct snd_soc_card speyside_wm8962 = {
	.name = "Speyside WM8962",
	.dai_link = speyside_wm8962_dai,
	.num_links = ARRAY_SIZE(speyside_wm8962_dai),

	.set_bias_level = speyside_wm8962_set_bias_level,
	.set_bias_level_post = speyside_wm8962_set_bias_level_post,

	.controls = controls,
	.num_controls = ARRAY_SIZE(controls),
	.dapm_widgets = widgets,
	.num_dapm_widgets = ARRAY_SIZE(widgets),
	.dapm_routes = audio_paths,
	.num_dapm_routes = ARRAY_SIZE(audio_paths),
	.fully_routed = true,

	.late_probe = speyside_wm8962_late_probe,
};

static __devinit int speyside_wm8962_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &speyside_wm8962;
	int ret;

	card->dev = &pdev->dev;

	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
			ret);
		return ret;
	}

	return 0;
}

static int __devexit speyside_wm8962_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);

	snd_soc_unregister_card(card);

	return 0;
}

static struct platform_driver speyside_wm8962_driver = {
	.driver = {
		.name = "speyside-wm8962",
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
	},
	.probe = speyside_wm8962_probe,
	.remove = __devexit_p(speyside_wm8962_remove),
};

module_platform_driver(speyside_wm8962_driver);

MODULE_DESCRIPTION("Speyside WM8962 audio support");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:speyside-wm8962");
Commit	Line	Data
22cb839b MB	1	/*
	2	* Speyside with WM8962 audio support
	3	*
	4	* Copyright 2011 Wolfson Microelectronics
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2 of the License, or (at your
	9	* option) any later version.
	10	*/
	11
	12	#include <sound/soc.h>
	13	#include <sound/soc-dapm.h>
	14	#include <sound/jack.h>
	15	#include <linux/gpio.h>
da155d5b	16	#include <linux/module.h>
22cb839b MB	17
	18	#include "../codecs/wm8962.h"
	19
ef473fee MB	20	static int sample_rate = 44100;
ef473fee MB	21
22cb839b MB	22	static int speyside_wm8962_set_bias_level(struct snd_soc_card *card,
	23	struct snd_soc_dapm_context *dapm,
	24	enum snd_soc_bias_level level)
	25	{
	26	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	27	int ret;
	28
f79e7ff8 MB	29	if (dapm->dev != codec_dai->dev)
	30	return 0;
	31
22cb839b MB	32	switch (level) {
	33	case SND_SOC_BIAS_PREPARE:
	34	if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
	35	ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
	36	WM8962_FLL_MCLK, 32768,
ef473fee	37	sample_rate * 512);
22cb839b	38	if (ret < 0)
67d0c479	39	pr_err("Failed to start FLL: %d\n", ret);
22cb839b MB	40
	41	ret = snd_soc_dai_set_sysclk(codec_dai,
	42	WM8962_SYSCLK_FLL,
ef473fee	43	sample_rate * 512,
22cb839b	44	SND_SOC_CLOCK_IN);
67d0c479	45	if (ret < 0) {
371e7305	46	pr_err("Failed to set SYSCLK: %d\n", ret);
22cb839b	47	return ret;
67d0c479	48	}
22cb839b MB	49	}
	50	break;
	51
	52	default:
	53	break;
	54	}
	55
	56	return 0;
	57	}
	58
	59	static int speyside_wm8962_set_bias_level_post(struct snd_soc_card *card,
	60	struct snd_soc_dapm_context *dapm,
	61	enum snd_soc_bias_level level)
	62	{
	63	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	64	int ret;
	65
f79e7ff8 MB	66	if (dapm->dev != codec_dai->dev)
	67	return 0;
	68
22cb839b MB	69	switch (level) {
	70	case SND_SOC_BIAS_STANDBY:
	71	ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
	72	32768, SND_SOC_CLOCK_IN);
67d0c479 MB	73	if (ret < 0) {
67d0c479 MB	74	pr_err("Failed to switch away from FLL: %d\n", ret);
22cb839b	75	return ret;
67d0c479	76	}
22cb839b MB	77
	78	ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
	79	0, 0, 0);
	80	if (ret < 0) {
67d0c479	81	pr_err("Failed to stop FLL: %d\n", ret);
22cb839b MB	82	return ret;
	83	}
	84	break;
	85
	86	default:
	87	break;
	88	}
	89
	90	dapm->bias_level = level;
	91
	92	return 0;
	93	}
	94
	95	static int speyside_wm8962_hw_params(struct snd_pcm_substream *substream,
	96	struct snd_pcm_hw_params *params)
	97	{
ef473fee MB	98	sample_rate = params_rate(params);
ef473fee MB	99
22cb839b MB	100	return 0;
	101	}
	102
	103	static struct snd_soc_ops speyside_wm8962_ops = {
	104	.hw_params = speyside_wm8962_hw_params,
	105	};
	106
	107	static struct snd_soc_dai_link speyside_wm8962_dai[] = {
	108	{
	109	.name = "CPU",
	110	.stream_name = "CPU",
	111	.cpu_dai_name = "samsung-i2s.0",
	112	.codec_dai_name = "wm8962",
	113	.platform_name = "samsung-audio",
	114	.codec_name = "wm8962.1-001a",
44fdd433 MB	115	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
44fdd433 MB	116	\| SND_SOC_DAIFMT_CBM_CFM,
22cb839b MB	117	.ops = &speyside_wm8962_ops,
	118	},
	119	};
	120
	121	static const struct snd_kcontrol_new controls[] = {
	122	SOC_DAPM_PIN_SWITCH("Main Speaker"),
8c756158	123	SOC_DAPM_PIN_SWITCH("DMIC"),
22cb839b MB	124	};
	125
	126	static struct snd_soc_dapm_widget widgets[] = {
	127	SND_SOC_DAPM_HP("Headphone", NULL),
	128	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	129
	130	SND_SOC_DAPM_MIC("DMIC", NULL),
7564463c	131	SND_SOC_DAPM_MIC("AMIC", NULL),
22cb839b MB	132
	133	SND_SOC_DAPM_SPK("Main Speaker", NULL),
	134	};
	135
	136	static struct snd_soc_dapm_route audio_paths[] = {
	137	{ "Headphone", NULL, "HPOUTL" },
	138	{ "Headphone", NULL, "HPOUTR" },
	139
	140	{ "Main Speaker", NULL, "SPKOUTL" },
	141	{ "Main Speaker", NULL, "SPKOUTR" },
	142
086d7f80 MB	143	{ "Headset Mic", NULL, "MICBIAS" },
	144	{ "IN4L", NULL, "Headset Mic" },
	145	{ "IN4R", NULL, "Headset Mic" },
22cb839b	146
7564463c MB	147	{ "AMIC", NULL, "MICBIAS" },
	148	{ "IN1L", NULL, "AMIC" },
	149	{ "IN1R", NULL, "AMIC" },
	150
086d7f80 MB	151	{ "DMIC", NULL, "MICBIAS" },
086d7f80 MB	152	{ "DMICDAT", NULL, "DMIC" },
22cb839b MB	153	};
	154
	155	static struct snd_soc_jack speyside_wm8962_headset;
	156
	157	/* Headset jack detection DAPM pins */
	158	static struct snd_soc_jack_pin speyside_wm8962_headset_pins[] = {
	159	{
	160	.pin = "Headset Mic",
	161	.mask = SND_JACK_MICROPHONE,
	162	},
	163	{
	164	.pin = "Headphone",
	165	.mask = SND_JACK_MICROPHONE,
	166	},
	167	};
	168
	169	static int speyside_wm8962_late_probe(struct snd_soc_card *card)
	170	{
	171	struct snd_soc_codec *codec = card->rtd[0].codec;
	172	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	173	int ret;
	174
	175	ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
	176	32768, SND_SOC_CLOCK_IN);
	177	if (ret < 0)
	178	return ret;
	179
	180	ret = snd_soc_jack_new(codec, "Headset",
	181	SND_JACK_HEADSET \| SND_JACK_BTN_0,
	182	&speyside_wm8962_headset);
	183	if (ret)
	184	return ret;
	185
	186	ret = snd_soc_jack_add_pins(&speyside_wm8962_headset,
	187	ARRAY_SIZE(speyside_wm8962_headset_pins),
	188	speyside_wm8962_headset_pins);
	189	if (ret)
	190	return ret;
	191
	192	wm8962_mic_detect(codec, &speyside_wm8962_headset);
	193
	194	return 0;
	195	}
	196
	197	static struct snd_soc_card speyside_wm8962 = {
	198	.name = "Speyside WM8962",
	199	.dai_link = speyside_wm8962_dai,
	200	.num_links = ARRAY_SIZE(speyside_wm8962_dai),
	201
	202	.set_bias_level = speyside_wm8962_set_bias_level,
	203	.set_bias_level_post = speyside_wm8962_set_bias_level_post,
	204
	205	.controls = controls,
	206	.num_controls = ARRAY_SIZE(controls),
	207	.dapm_widgets = widgets,
	208	.num_dapm_widgets = ARRAY_SIZE(widgets),
	209	.dapm_routes = audio_paths,
	210	.num_dapm_routes = ARRAY_SIZE(audio_paths),
39afd66c	211	.fully_routed = true,
22cb839b MB	212
	213	.late_probe = speyside_wm8962_late_probe,
	214	};
	215
	216	static __devinit int speyside_wm8962_probe(struct platform_device *pdev)
	217	{
	218	struct snd_soc_card *card = &speyside_wm8962;
	219	int ret;
	220
	221	card->dev = &pdev->dev;
	222
	223	ret = snd_soc_register_card(card);
	224	if (ret) {
	225	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	226	ret);
	227	return ret;
	228	}
	229
	230	return 0;
	231	}
	232
	233	static int __devexit speyside_wm8962_remove(struct platform_device *pdev)
	234	{
	235	struct snd_soc_card *card = platform_get_drvdata(pdev);
	236
	237	snd_soc_unregister_card(card);
	238
	239	return 0;
	240	}
	241
	242	static struct platform_driver speyside_wm8962_driver = {
	243	.driver = {
	244	.name = "speyside-wm8962",
	245	.owner = THIS_MODULE,
	246	.pm = &snd_soc_pm_ops,
	247	},
	248	.probe = speyside_wm8962_probe,
	249	.remove = __devexit_p(speyside_wm8962_remove),
	250	};
	251
e00c3f55	252	module_platform_driver(speyside_wm8962_driver);
22cb839b MB	253
	254	MODULE_DESCRIPTION("Speyside WM8962 audio support");
	255	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	256	MODULE_LICENSE("GPL");
	257	MODULE_ALIAS("platform:speyside-wm8962");