[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 "../codecs/wm8962.h"

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;

	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,
						  44100 * 256);
			if (ret < 0)
				pr_err("Failed to start FLL: %d\n", ret);

			ret = snd_soc_dai_set_sysclk(codec_dai,
						     WM8962_SYSCLK_FLL,
						     44100 * 256,
						     SND_SOC_CLOCK_IN);
			if (ret < 0) {
				pr_err("Failed to set SYSCLK: %d\n");
				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;

	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)
{
	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 ret;

	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
					 | SND_SOC_DAIFMT_NB_NF
					 | SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
					 | SND_SOC_DAIFMT_NB_NF
					 | SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	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",
		.ops = &speyside_wm8962_ops,
	},
};

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

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_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" },

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

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

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),

	.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),
};

static int __init speyside_wm8962_audio_init(void)
{
	return platform_driver_register(&speyside_wm8962_driver);
}
module_init(speyside_wm8962_audio_init);

static void __exit speyside_wm8962_audio_exit(void)
{
	platform_driver_unregister(&speyside_wm8962_driver);
}
module_exit(speyside_wm8962_audio_exit);

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>
	16
	17	#include "../codecs/wm8962.h"
	18
	19	static int speyside_wm8962_set_bias_level(struct snd_soc_card *card,
	20	struct snd_soc_dapm_context *dapm,
	21	enum snd_soc_bias_level level)
	22	{
	23	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	24	int ret;
	25
	26	switch (level) {
	27	case SND_SOC_BIAS_PREPARE:
	28	if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
	29	ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
	30	WM8962_FLL_MCLK, 32768,
	31	44100 * 256);
	32	if (ret < 0)
67d0c479	33	pr_err("Failed to start FLL: %d\n", ret);
22cb839b MB	34
	35	ret = snd_soc_dai_set_sysclk(codec_dai,
	36	WM8962_SYSCLK_FLL,
	37	44100 * 256,
	38	SND_SOC_CLOCK_IN);
67d0c479 MB	39	if (ret < 0) {
67d0c479 MB	40	pr_err("Failed to set SYSCLK: %d\n");
22cb839b	41	return ret;
67d0c479	42	}
22cb839b MB	43	}
	44	break;
	45
	46	default:
	47	break;
	48	}
	49
	50	return 0;
	51	}
	52
	53	static int speyside_wm8962_set_bias_level_post(struct snd_soc_card *card,
	54	struct snd_soc_dapm_context *dapm,
	55	enum snd_soc_bias_level level)
	56	{
	57	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	58	int ret;
	59
	60	switch (level) {
	61	case SND_SOC_BIAS_STANDBY:
	62	ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
	63	32768, SND_SOC_CLOCK_IN);
67d0c479 MB	64	if (ret < 0) {
67d0c479 MB	65	pr_err("Failed to switch away from FLL: %d\n", ret);
22cb839b	66	return ret;
67d0c479	67	}
22cb839b MB	68
	69	ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
	70	0, 0, 0);
	71	if (ret < 0) {
67d0c479	72	pr_err("Failed to stop FLL: %d\n", ret);
22cb839b MB	73	return ret;
	74	}
	75	break;
	76
	77	default:
	78	break;
	79	}
	80
	81	dapm->bias_level = level;
	82
	83	return 0;
	84	}
	85
	86	static int speyside_wm8962_hw_params(struct snd_pcm_substream *substream,
	87	struct snd_pcm_hw_params *params)
	88	{
	89	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	90	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	91	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	92	int ret;
	93
	94	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
	95	\| SND_SOC_DAIFMT_NB_NF
	96	\| SND_SOC_DAIFMT_CBM_CFM);
	97	if (ret < 0)
	98	return ret;
	99
	100	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
	101	\| SND_SOC_DAIFMT_NB_NF
	102	\| SND_SOC_DAIFMT_CBM_CFM);
	103	if (ret < 0)
	104	return ret;
	105
	106	return 0;
	107	}
	108
	109	static struct snd_soc_ops speyside_wm8962_ops = {
	110	.hw_params = speyside_wm8962_hw_params,
	111	};
	112
	113	static struct snd_soc_dai_link speyside_wm8962_dai[] = {
	114	{
	115	.name = "CPU",
	116	.stream_name = "CPU",
	117	.cpu_dai_name = "samsung-i2s.0",
	118	.codec_dai_name = "wm8962",
	119	.platform_name = "samsung-audio",
	120	.codec_name = "wm8962.1-001a",
	121	.ops = &speyside_wm8962_ops,
	122	},
	123	};
	124
	125	static const struct snd_kcontrol_new controls[] = {
	126	SOC_DAPM_PIN_SWITCH("Main Speaker"),
	127	};
	128
	129	static struct snd_soc_dapm_widget widgets[] = {
	130	SND_SOC_DAPM_HP("Headphone", NULL),
	131	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	132
	133	SND_SOC_DAPM_MIC("DMIC", NULL),
	134
	135	SND_SOC_DAPM_SPK("Main Speaker", NULL),
	136	};
137
138	static struct snd_soc_dapm_route audio_paths[] = {
139	{ "Headphone", NULL, "HPOUTL" },
140	{ "Headphone", NULL, "HPOUTR" },
141
142	{ "Main Speaker", NULL, "SPKOUTL" },
143	{ "Main Speaker", NULL, "SPKOUTR" },
144
145	{ "MICBIAS", NULL, "Headset Mic" },
146	{ "IN4L", NULL, "MICBIAS" },
147	{ "IN4R", NULL, "MICBIAS" },
148
149	{ "MICBIAS", NULL, "DMIC" },
150	{ "DMICDAT", NULL, "MICBIAS" },
151	};
152
153	static struct snd_soc_jack speyside_wm8962_headset;
154
155	/* Headset jack detection DAPM pins */
156	static struct snd_soc_jack_pin speyside_wm8962_headset_pins[] = {
157	{
158	.pin = "Headset Mic",
159	.mask = SND_JACK_MICROPHONE,
160	},
161	{
162	.pin = "Headphone",
163	.mask = SND_JACK_MICROPHONE,
164	},
165	};
166
167	static int speyside_wm8962_late_probe(struct snd_soc_card *card)
168	{
169	struct snd_soc_codec *codec = card->rtd[0].codec;
170	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
171	int ret;
172
173	ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
174	32768, SND_SOC_CLOCK_IN);
175	if (ret < 0)
176	return ret;
177
178	ret = snd_soc_jack_new(codec, "Headset",
179	SND_JACK_HEADSET \| SND_JACK_BTN_0,
180	&speyside_wm8962_headset);
181	if (ret)
182	return ret;
183
184	ret = snd_soc_jack_add_pins(&speyside_wm8962_headset,
185	ARRAY_SIZE(speyside_wm8962_headset_pins),
186	speyside_wm8962_headset_pins);
187	if (ret)
188	return ret;
189
190	wm8962_mic_detect(codec, &speyside_wm8962_headset);
191
192	return 0;
193	}
194
195	static struct snd_soc_card speyside_wm8962 = {
196	.name = "Speyside WM8962",
197	.dai_link = speyside_wm8962_dai,
198	.num_links = ARRAY_SIZE(speyside_wm8962_dai),
199
200	.set_bias_level = speyside_wm8962_set_bias_level,
201	.set_bias_level_post = speyside_wm8962_set_bias_level_post,
202
203	.controls = controls,
204	.num_controls = ARRAY_SIZE(controls),
205	.dapm_widgets = widgets,
206	.num_dapm_widgets = ARRAY_SIZE(widgets),
207	.dapm_routes = audio_paths,
208	.num_dapm_routes = ARRAY_SIZE(audio_paths),
209
210	.late_probe = speyside_wm8962_late_probe,
211	};
212
213	static __devinit int speyside_wm8962_probe(struct platform_device *pdev)
214	{
215	struct snd_soc_card *card = &speyside_wm8962;
216	int ret;
217
218	card->dev = &pdev->dev;
219
220	ret = snd_soc_register_card(card);
221	if (ret) {
222	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
223	ret);
224	return ret;
225	}
226
227	return 0;
228	}
229
230	static int __devexit speyside_wm8962_remove(struct platform_device *pdev)
231	{
232	struct snd_soc_card *card = platform_get_drvdata(pdev);
233
234	snd_soc_unregister_card(card);
235
236	return 0;
237	}
238
239	static struct platform_driver speyside_wm8962_driver = {
240	.driver = {
241	.name = "speyside-wm8962",
242	.owner = THIS_MODULE,
243	.pm = &snd_soc_pm_ops,
244	},
245	.probe = speyside_wm8962_probe,
246	.remove = __devexit_p(speyside_wm8962_remove),
247	};
248
249	static int __init speyside_wm8962_audio_init(void)
250	{
251	return platform_driver_register(&speyside_wm8962_driver);
252	}
253	module_init(speyside_wm8962_audio_init);
254
255	static void __exit speyside_wm8962_audio_exit(void)
256	{
257	platform_driver_unregister(&speyside_wm8962_driver);
258	}
259	module_exit(speyside_wm8962_audio_exit);
260
261	MODULE_DESCRIPTION("Speyside WM8962 audio support");
262	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
263	MODULE_LICENSE("GPL");
264	MODULE_ALIAS("platform:speyside-wm8962");