[deliverable/linux.git] / sound / soc / samsung / smdk_wm8994.c

/*
 *  smdk_wm8994.c
 *
 *  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 "../codecs/wm8994.h"
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>

 /*
  * Default CFG switch settings to use this driver:
  *	SMDKV310: CFG5-1000, CFG7-111111
  */

 /*
  * Configure audio route as :-
  * $ amixer sset 'DAC1' on,on
  * $ amixer sset 'Right Headphone Mux' 'DAC'
  * $ amixer sset 'Left Headphone Mux' 'DAC'
  * $ amixer sset 'DAC1R Mixer AIF1.1' on
  * $ amixer sset 'DAC1L Mixer AIF1.1' on
  * $ amixer sset 'IN2L' on
  * $ amixer sset 'IN2L PGA IN2LN' on
  * $ amixer sset 'MIXINL IN2L' on
  * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on
  * $ amixer sset 'IN2R' on
  * $ amixer sset 'IN2R PGA IN2RN' on
  * $ amixer sset 'MIXINR IN2R' on
  * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on
  */

/* SMDK has a 16.934MHZ crystal attached to WM8994 */
#define SMDK_WM8994_FREQ 16934000

struct smdk_wm8994_data {
	int mclk1_rate;
};

/* Default SMDKs */
static struct smdk_wm8994_data smdk_board_data = {
	.mclk1_rate = SMDK_WM8994_FREQ,
};

static int smdk_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->codec_dai;
	unsigned int pll_out;
	int ret;

	/* AIF1CLK should be >=3MHz for optimal performance */
	if (params_format(params) == SNDRV_PCM_FORMAT_S24_LE)
		pll_out = params_rate(params) * 384;
	else if (params_rate(params) == 8000 || params_rate(params) == 11025)
		pll_out = params_rate(params) * 512;
	else
		pll_out = params_rate(params) * 256;

	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
					SMDK_WM8994_FREQ, pll_out);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
					pll_out, SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	return 0;
}

/*
 * SMDK WM8994 DAI operations.
 */
static struct snd_soc_ops smdk_ops = {
	.hw_params = smdk_hw_params,
};

static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	/* HeadPhone */
	snd_soc_dapm_enable_pin(dapm, "HPOUT1R");
	snd_soc_dapm_enable_pin(dapm, "HPOUT1L");

	/* MicIn */
	snd_soc_dapm_enable_pin(dapm, "IN1LN");
	snd_soc_dapm_enable_pin(dapm, "IN1RN");

	/* LineIn */
	snd_soc_dapm_enable_pin(dapm, "IN2LN");
	snd_soc_dapm_enable_pin(dapm, "IN2RN");

	/* Other pins NC */
	snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
	snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
	snd_soc_dapm_nc_pin(dapm, "SPKOUTLN");
	snd_soc_dapm_nc_pin(dapm, "SPKOUTLP");
	snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
	snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
	snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
	snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
	snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
	snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
	snd_soc_dapm_nc_pin(dapm, "IN1LP");
	snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
	snd_soc_dapm_nc_pin(dapm, "IN1RP");
	snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");

	return 0;
}

static struct snd_soc_dai_link smdk_dai[] = {
	{ /* Primary DAI i/f */
		.name = "WM8994 AIF1",
		.stream_name = "Pri_Dai",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm8994-aif1",
		.platform_name = "samsung-i2s.0",
		.codec_name = "wm8994-codec",
		.init = smdk_wm8994_init_paiftx,
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBM_CFM,
		.ops = &smdk_ops,
	}, { /* Sec_Fifo Playback i/f */
		.name = "Sec_FIFO TX",
		.stream_name = "Sec_Dai",
		.cpu_dai_name = "samsung-i2s-sec",
		.codec_dai_name = "wm8994-aif1",
		.platform_name = "samsung-i2s-sec",
		.codec_name = "wm8994-codec",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBM_CFM,
		.ops = &smdk_ops,
	},
};

static struct snd_soc_card smdk = {
	.name = "SMDK-I2S",
	.owner = THIS_MODULE,
	.dai_link = smdk_dai,
	.num_links = ARRAY_SIZE(smdk_dai),
};

static const struct of_device_id samsung_wm8994_of_match[] = {
	{ .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data },
	{},
};
MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);

static int smdk_audio_probe(struct platform_device *pdev)
{
	int ret;
	struct device_node *np = pdev->dev.of_node;
	struct snd_soc_card *card = &smdk;
	struct smdk_wm8994_data *board;
	const struct of_device_id *id;

	card->dev = &pdev->dev;

	board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL);
	if (!board)
		return -ENOMEM;

	if (np) {
		smdk_dai[0].cpu_dai_name = NULL;
		smdk_dai[0].cpu_of_node = of_parse_phandle(np,
				"samsung,i2s-controller", 0);
		if (!smdk_dai[0].cpu_of_node) {
			dev_err(&pdev->dev,
			   "Property 'samsung,i2s-controller' missing or invalid\n");
			ret = -EINVAL;
		}

		smdk_dai[0].platform_name = NULL;
		smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node;
	}

	id = of_match_device(of_match_ptr(samsung_wm8994_of_match), &pdev->dev);
	if (id)
		*board = *((struct smdk_wm8994_data *)id->data);

	platform_set_drvdata(pdev, board);

	ret = devm_snd_soc_register_card(&pdev->dev, card);

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

	return ret;
}

static struct platform_driver smdk_audio_driver = {
	.driver		= {
		.name	= "smdk-audio-wm8994",
		.owner	= THIS_MODULE,
		.of_match_table = of_match_ptr(samsung_wm8994_of_match),
		.pm	= &snd_soc_pm_ops,
	},
	.probe		= smdk_audio_probe,
};

module_platform_driver(smdk_audio_driver);

MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:smdk-audio-wm8994");
Commit	Line	Data
96657d33 JB	1	/*
	2	* smdk_wm8994.c
	3	*
	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms of the GNU General Public License as published by the
	6	* Free Software Foundation; either version 2 of the License, or (at your
	7	* option) any later version.
	8	*/
	9
	10	#include "../codecs/wm8994.h"
b3d7615f	11	#include <sound/pcm_params.h>
de0022d4	12	#include <sound/soc.h>
3d94a2a5	13	#include <linux/module.h>
28a48058	14	#include <linux/of.h>
d30c148b	15	#include <linux/of_device.h>
96657d33 JB	16
	17	/*
	18	* Default CFG switch settings to use this driver:
	19	* SMDKV310: CFG5-1000, CFG7-111111
	20	*/
	21
	22	/*
	23	* Configure audio route as :-
	24	* $ amixer sset 'DAC1' on,on
	25	* $ amixer sset 'Right Headphone Mux' 'DAC'
	26	* $ amixer sset 'Left Headphone Mux' 'DAC'
	27	* $ amixer sset 'DAC1R Mixer AIF1.1' on
	28	* $ amixer sset 'DAC1L Mixer AIF1.1' on
	29	* $ amixer sset 'IN2L' on
	30	* $ amixer sset 'IN2L PGA IN2LN' on
	31	* $ amixer sset 'MIXINL IN2L' on
	32	* $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on
	33	* $ amixer sset 'IN2R' on
	34	* $ amixer sset 'IN2R PGA IN2RN' on
	35	* $ amixer sset 'MIXINR IN2R' on
	36	* $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on
	37	*/
	38
	39	/* SMDK has a 16.934MHZ crystal attached to WM8994 */
	40	#define SMDK_WM8994_FREQ 16934000
	41
d30c148b MB	42	struct smdk_wm8994_data {
	43	int mclk1_rate;
	44	};
	45
	46	/* Default SMDKs */
	47	static struct smdk_wm8994_data smdk_board_data = {
	48	.mclk1_rate = SMDK_WM8994_FREQ,
	49	};
	50
96657d33 JB	51	static int smdk_hw_params(struct snd_pcm_substream *substream,
	52	struct snd_pcm_hw_params *params)
	53	{
	54	struct snd_soc_pcm_runtime *rtd = substream->private_data;
96657d33 JB	55	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	56	unsigned int pll_out;
	57	int ret;
	58
	59	/* AIF1CLK should be >=3MHz for optimal performance */
b3d7615f GM	60	if (params_format(params) == SNDRV_PCM_FORMAT_S24_LE)
	61	pll_out = params_rate(params) * 384;
	62	else if (params_rate(params) == 8000 \|\| params_rate(params) == 11025)
96657d33 JB	63	pll_out = params_rate(params) * 512;
	64	else
	65	pll_out = params_rate(params) * 256;
	66
96657d33 JB	67	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
	68	SMDK_WM8994_FREQ, pll_out);
	69	if (ret < 0)
	70	return ret;
	71
	72	ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
	73	pll_out, SND_SOC_CLOCK_IN);
	74	if (ret < 0)
	75	return ret;
	76
	77	return 0;
	78	}
	79
	80	/*
	81	* SMDK WM8994 DAI operations.
	82	*/
	83	static struct snd_soc_ops smdk_ops = {
	84	.hw_params = smdk_hw_params,
	85	};
	86
	87	static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
	88	{
	89	struct snd_soc_codec *codec = rtd->codec;
	90	struct snd_soc_dapm_context *dapm = &codec->dapm;
	91
	92	/* HeadPhone */
	93	snd_soc_dapm_enable_pin(dapm, "HPOUT1R");
	94	snd_soc_dapm_enable_pin(dapm, "HPOUT1L");
	95
	96	/* MicIn */
	97	snd_soc_dapm_enable_pin(dapm, "IN1LN");
	98	snd_soc_dapm_enable_pin(dapm, "IN1RN");
	99
	100	/* LineIn */
	101	snd_soc_dapm_enable_pin(dapm, "IN2LN");
	102	snd_soc_dapm_enable_pin(dapm, "IN2RN");
	103
	104	/* Other pins NC */
	105	snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
	106	snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
	107	snd_soc_dapm_nc_pin(dapm, "SPKOUTLN");
	108	snd_soc_dapm_nc_pin(dapm, "SPKOUTLP");
	109	snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
	110	snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
	111	snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
	112	snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
	113	snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
	114	snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
	115	snd_soc_dapm_nc_pin(dapm, "IN1LP");
	116	snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
	117	snd_soc_dapm_nc_pin(dapm, "IN1RP");
	118	snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
	119
96657d33 JB	120	return 0;
	121	}
	122
	123	static struct snd_soc_dai_link smdk_dai[] = {
	124	{ /* Primary DAI i/f */
	125	.name = "WM8994 AIF1",
	126	.stream_name = "Pri_Dai",
	127	.cpu_dai_name = "samsung-i2s.0",
	128	.codec_dai_name = "wm8994-aif1",
a08485d8	129	.platform_name = "samsung-i2s.0",
96657d33 JB	130	.codec_name = "wm8994-codec",
96657d33 JB	131	.init = smdk_wm8994_init_paiftx,
f6ecf50b MB	132	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
f6ecf50b MB	133	SND_SOC_DAIFMT_CBM_CFM,
96657d33 JB	134	.ops = &smdk_ops,
	135	}, { /* Sec_Fifo Playback i/f */
	136	.name = "Sec_FIFO TX",
	137	.stream_name = "Sec_Dai",
7c62eebb	138	.cpu_dai_name = "samsung-i2s-sec",
96657d33	139	.codec_dai_name = "wm8994-aif1",
7c62eebb	140	.platform_name = "samsung-i2s-sec",
96657d33	141	.codec_name = "wm8994-codec",
f6ecf50b MB	142	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
f6ecf50b MB	143	SND_SOC_DAIFMT_CBM_CFM,
96657d33 JB	144	.ops = &smdk_ops,
	145	},
	146	};
	147
	148	static struct snd_soc_card smdk = {
	149	.name = "SMDK-I2S",
095d79dc	150	.owner = THIS_MODULE,
96657d33 JB	151	.dai_link = smdk_dai,
	152	.num_links = ARRAY_SIZE(smdk_dai),
	153	};
	154
d30c148b MB	155	static const struct of_device_id samsung_wm8994_of_match[] = {
	156	{ .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data },
	157	{},
	158	};
	159	MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
96657d33	160
fdca21ad	161	static int smdk_audio_probe(struct platform_device *pdev)
96657d33 JB	162	{
96657d33 JB	163	int ret;
28a48058	164	struct device_node *np = pdev->dev.of_node;
9c9acc91	165	struct snd_soc_card *card = &smdk;
d30c148b MB	166	struct smdk_wm8994_data *board;
d30c148b MB	167	const struct of_device_id *id;
96657d33	168
9c9acc91	169	card->dev = &pdev->dev;
28a48058	170
d30c148b MB	171	board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL);
	172	if (!board)
	173	return -ENOMEM;
	174
28a48058 PV	175	if (np) {
	176	smdk_dai[0].cpu_dai_name = NULL;
	177	smdk_dai[0].cpu_of_node = of_parse_phandle(np,
	178	"samsung,i2s-controller", 0);
	179	if (!smdk_dai[0].cpu_of_node) {
	180	dev_err(&pdev->dev,
	181	"Property 'samsung,i2s-controller' missing or invalid\n");
	182	ret = -EINVAL;
	183	}
	184
	185	smdk_dai[0].platform_name = NULL;
	186	smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node;
	187	}
	188
f83183ca	189	id = of_match_device(of_match_ptr(samsung_wm8994_of_match), &pdev->dev);
d30c148b MB	190	if (id)
	191	board = ((struct smdk_wm8994_data *)id->data);
	192
	193	platform_set_drvdata(pdev, board);
	194
9a8e0322	195	ret = devm_snd_soc_register_card(&pdev->dev, card);
96657d33	196
96657d33	197	if (ret)
9c9acc91	198	dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
96657d33 JB	199
	200	return ret;
	201	}
96657d33	202
9c9acc91 SK	203	static struct platform_driver smdk_audio_driver = {
9c9acc91 SK	204	.driver = {
0b166d8e	205	.name = "smdk-audio-wm8994",
9c9acc91	206	.owner = THIS_MODULE,
28a48058	207	.of_match_table = of_match_ptr(samsung_wm8994_of_match),
de0022d4	208	.pm = &snd_soc_pm_ops,
9c9acc91 SK	209	},
9c9acc91 SK	210	.probe = smdk_audio_probe,
9c9acc91 SK	211	};
	212
	213	module_platform_driver(smdk_audio_driver);
96657d33 JB	214
	215	MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
	216	MODULE_LICENSE("GPL");
0d47acc4	217	MODULE_ALIAS("platform:smdk-audio-wm8994");