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Commit 3093e48c authored by Ben Dooks's avatar Ben Dooks Committed by Mark Brown
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ASoC: Add JIVE audio support 



Add support for the Jive's WM8750 codec attached via the S3C2412 IIS.

Signed-off-by: default avatarBen Dooks <ben@simtec.co.uk>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 979c036e

sound/soc/s3c24xx/Kconfig

+9 −0
Original line number Original line Diff line number Diff line
@@ -26,6 +26,15 @@ config SND_S3C24XX_SOC_NEO1973_WM8753 
	  Say Y if you want to add support for SoC audio on smdk2440

	  Say Y if you want to add support for SoC audio on smdk2440

	  with the WM8753.

	  with the WM8753.





config SND_S3C24XX_SOC_JIVE_WM8750

	tristate "SoC I2S Audio support for Jive"

	depends on SND_S3C24XX_SOC && MACH_JIVE

	select SND_SOC_WM8750

	select SND_SOC_WM8750_SPI

	select SND_S3C2412_SOC_I2S

	help

	  Sat Y if you want to add support for SoC audio on the Jive.



config SND_S3C24XX_SOC_SMDK2443_WM9710

config SND_S3C24XX_SOC_SMDK2443_WM9710

	tristate "SoC AC97 Audio support for SMDK2443 - WM9710"

	tristate "SoC AC97 Audio support for SMDK2443 - WM9710"

	depends on SND_S3C24XX_SOC && MACH_SMDK2443

	depends on SND_S3C24XX_SOC && MACH_SMDK2443

sound/soc/s3c24xx/Makefile

+2 −0
Original line number Original line Diff line number Diff line
@@ -10,11 +10,13 @@ obj-$(CONFIG_SND_S3C2443_SOC_AC97) += snd-soc-s3c2443-ac97.o 
obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o

obj-$(CONFIG_SND_S3C2412_SOC_I2S) += snd-soc-s3c2412-i2s.o





# S3C24XX Machine Support

# S3C24XX Machine Support

snd-soc-jive-wm8750-objs := jive_wm8750.o

snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o

snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o

snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o

snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o

snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o

snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o

snd-soc-s3c24xx-uda134x-objs := s3c24xx_uda134x.o

snd-soc-s3c24xx-uda134x-objs := s3c24xx_uda134x.o





obj-$(CONFIG_SND_S3C24XX_SOC_JIVE_WM8750) += snd-soc-jive-wm8750.o

obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o

obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o

obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o

obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o

obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o

obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o

sound/soc/s3c24xx/jive_wm8750.c

0 → 100644
+216 −0
Original line number Original line Diff line number Diff line 
/* sound/soc/s3c24xx/jive_wm8750.c

 *

 * Copyright 2007,2008 Simtec Electronics

 *

 * Based on sound/soc/pxa/spitz.c

 *	Copyright 2005 Wolfson Microelectronics PLC.

 *	Copyright 2005 Openedhand Ltd.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

*/



#include <linux/module.h>

#include <linux/moduleparam.h>

#include <linux/timer.h>

#include <linux/interrupt.h>

#include <linux/platform_device.h>

#include <linux/clk.h>



#include <sound/core.h>

#include <sound/pcm.h>

#include <sound/soc.h>

#include <sound/soc-dapm.h>



#include <asm/mach-types.h>



#include "s3c24xx-pcm.h"

#include "s3c2412-i2s.h"



#include "../codecs/wm8750.h"



static const struct snd_soc_dapm_route audio_map[] = {

	{ "Headphone Jack", NULL, "LOUT1" },

	{ "Headphone Jack", NULL, "ROUT1" },

	{ "Internal Speaker", NULL, "LOUT2" },

	{ "Internal Speaker", NULL, "ROUT2" },

	{ "LINPUT1", NULL, "Line Input" },

	{ "RINPUT1", NULL, "Line Input" },

};



static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {

	SND_SOC_DAPM_HP("Headphone Jack", NULL),

	SND_SOC_DAPM_SPK("Internal Speaker", NULL),

	SND_SOC_DAPM_LINE("Line In", NULL),

};



static int jive_startup(struct snd_pcm_substream *substream)

{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_codec *codec = rtd->socdev->codec;



	snd_soc_dapm_enable_pin(codec, "Headphone Jack");

	snd_soc_dapm_enable_pin(codec, "Internal Speaker");

	snd_soc_dapm_enable_pin(codec, "Line In");



	snd_soc_dapm_sync(codec);



	return 0;

}



static int jive_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 s3c2412_rate_calc div;

	unsigned int clk = 0;

	int ret = 0;



	switch (params_rate(params)) {

	case 8000:

	case 16000:

	case 48000:

	case 96000:

		clk = 12288000;

		break;

	case 11025:

	case 22050:

	case 44100:

		clk = 11289600;

		break;

	}



	s3c2412_iis_calc_rate(&div, NULL, params_rate(params),

			      s3c2412_get_iisclk());



	/* 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;



	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);

	if (ret < 0)

		return ret;



	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,

				     div.clk_div - 1);

	if (ret < 0)

		return ret;



	return 0;

}



static struct snd_soc_ops jive_ops = {

	.startup	= jive_startup,

	.hw_params	= jive_hw_params,

};



static int jive_wm8750_init(struct snd_soc_codec *codec)

{

	int err;



	/* These endpoints are not being used. */

	snd_soc_dapm_disable_pin(codec, "LINPUT2");

	snd_soc_dapm_disable_pin(codec, "RINPUT2");

	snd_soc_dapm_disable_pin(codec, "LINPUT3");

	snd_soc_dapm_disable_pin(codec, "RINPUT3");

	snd_soc_dapm_disable_pin(codec, "OUT3");

	snd_soc_dapm_disable_pin(codec, "MONO");



	/* Add jive specific widgets */

	err = snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets,

					ARRAY_SIZE(wm8750_dapm_widgets));

	if (err) {

		printk(KERN_ERR "%s: failed to add widgets (%d)\n",

		       __func__, err);

		return err;

	}



	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_sync(codec);



	return 0;

}



static struct snd_soc_dai_link jive_dai = {

	.name		= "wm8750",

	.stream_name	= "WM8750",

	.cpu_dai	= &s3c2412_i2s_dai,

	.codec_dai	= &wm8750_dai,

	.init		= jive_wm8750_init,

	.ops		= &jive_ops,

};



/* jive audio machine driver */

static struct snd_soc_machine snd_soc_machine_jive = {

	.name		= "Jive",

	.dai_link	= &jive_dai,

	.num_links	= 1,

};



/* jive audio private data */

static struct wm8750_setup_data jive_wm8750_setup = {

};



/* jive audio subsystem */

static struct snd_soc_device jive_snd_devdata = {

	.machine	= &snd_soc_machine_jive,

	.platform	= &s3c24xx_soc_platform,

	.codec_dev	= &soc_codec_dev_wm8750_spi,

	.codec_data	= &jive_wm8750_setup,

};



static struct platform_device *jive_snd_device;



static int __init jive_init(void)

{

	int ret;



	if (!machine_is_jive())

		return 0;



	printk("JIVE WM8750 Audio support\n");



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

	if (!jive_snd_device)

		return -ENOMEM;



	platform_set_drvdata(jive_snd_device, &jive_snd_devdata);

	jive_snd_devdata.dev = &jive_snd_device->dev;

	ret = platform_device_add(jive_snd_device);



	if (ret)

		platform_device_put(jive_snd_device);



	return ret;

}



static void __exit jive_exit(void)

{

	platform_device_unregister(jive_snd_device);

}



module_init(jive_init);

module_exit(jive_exit);



MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");

MODULE_DESCRIPTION("ALSA SoC Jive Audio support");

MODULE_LICENSE("GPL");