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Commit 96657d33 authored by Jassi Brar's avatar Jassi Brar Committed by Mark Brown
Browse files

ASoC: SMDKV310: Add I2S support 



Add ASoC machine driver for SMDKV310/C210 boards that have
a WM8994 attached to I2S-0.

Signed-off-by: default avatarJassi Brar <jassi.brar@samsung.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 4d81acff

sound/soc/samsung/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -68,6 +68,14 @@ config ASOC_SAMSUNG_SMDK_WM8580 
	help

	  Say Y if you want to add support for SoC audio on the SMDKs.



config ASOC_SAMSUNG_SMDK_WM8994

	tristate "SoC I2S Audio support for WM8994 on SMDK"

	depends on ASOC_SAMSUNG && (MACH_SMDKV310 || MACH_SMDKC210)

	select SND_SOC_WM8994

	select SND_SAMSUNG_I2S

	help

		Say Y if you want to add support for SoC audio on the SMDKs.



config ASOC_SAMSUNG_SMDK2443_WM9710

	tristate "SoC AC97 Audio support for SMDK2443 - WM9710"

	depends on ASOC_SAMSUNG && MACH_SMDK2443

sound/soc/samsung/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ snd-soc-s3c24xx-simtec-tlv320aic23-objs := s3c24xx_simtec_tlv320aic23.o 
snd-soc-h1940-uda1380-objs := h1940_uda1380.o

snd-soc-rx1950-uda1380-objs := rx1950_uda1380.o

snd-soc-smdk-wm8580-objs := smdk_wm8580.o

snd-soc-smdk-wm8994-objs := smdk_wm8994.o

snd-soc-smdk-wm9713-objs := smdk_wm9713.o

snd-soc-s3c64xx-smartq-wm8987-objs := smartq_wm8987.o

snd-soc-goni-wm8994-objs := goni_wm8994.o
@@ -47,6 +48,7 @@ obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC_TLV320AIC23) += snd-soc-s3c24xx-simtec-tlv320ai 
obj-$(CONFIG_ASOC_SAMSUNG_H1940_UDA1380) += snd-soc-h1940-uda1380.o

obj-$(CONFIG_ASOC_SAMSUNG_RX1950_UDA1380) += snd-soc-rx1950-uda1380.o

obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM8580) += snd-soc-smdk-wm8580.o

obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM8994) += snd-soc-smdk-wm8994.o

obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM9713) += snd-soc-smdk-wm9713.o

obj-$(CONFIG_ASOC_SMARTQ) += snd-soc-s3c64xx-smartq-wm8987.o

obj-$(CONFIG_ASOC_SAMSUNG_SMDK_SPDIF) += snd-soc-smdk-spdif.o

sound/soc/samsung/smdk_wm8994.c

0 → 100644
+176 −0
Original line number Diff line number Diff line 
/*

 *  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"



 /*

  * 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



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 *cpu_dai = rtd->cpu_dai;

	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	unsigned int pll_out;

	int ret;



	/* AIF1CLK should be >=3MHz for optimal performance */

	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_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;



	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");



	snd_soc_dapm_sync(dapm);



	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-audio",

		.codec_name = "wm8994-codec",

		.init = smdk_wm8994_init_paiftx,

		.ops = &smdk_ops,

	}, { /* Sec_Fifo Playback i/f */

		.name = "Sec_FIFO TX",

		.stream_name = "Sec_Dai",

		.cpu_dai_name = "samsung-i2s.4",

		.codec_dai_name = "wm8994-aif1",

		.platform_name = "samsung-audio",

		.codec_name = "wm8994-codec",

		.ops = &smdk_ops,

	},

};



static struct snd_soc_card smdk = {

	.name = "SMDK-I2S",

	.dai_link = smdk_dai,

	.num_links = ARRAY_SIZE(smdk_dai),

};



static struct platform_device *smdk_snd_device;



static int __init smdk_audio_init(void)

{

	int ret;



	smdk_snd_device = platform_device_alloc("soc-audio", -1);

	if (!smdk_snd_device)

		return -ENOMEM;



	platform_set_drvdata(smdk_snd_device, &smdk);



	ret = platform_device_add(smdk_snd_device);

	if (ret)

		platform_device_put(smdk_snd_device);



	return ret;

}

module_init(smdk_audio_init);



static void __exit smdk_audio_exit(void)

{

	platform_device_unregister(smdk_snd_device);

}

module_exit(smdk_audio_exit);



MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");

MODULE_LICENSE("GPL");