[deliverable/linux.git] / sound / soc / samsung / neo1973_wm8753.c

/*
 * neo1973_wm8753.c  --  SoC audio for Openmoko Neo1973 and Freerunner devices
 *
 * Copyright 2007 Openmoko Inc
 * Author: Graeme Gregory <graeme@openmoko.org>
 * Copyright 2007 Wolfson Microelectronics PLC.
 * Author: Graeme Gregory
 *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
 * Copyright 2009 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 <linux/module.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>

#include <sound/soc.h>

#include <asm/mach-types.h>
#include <plat/regs-iis.h>
#include <mach/gta02.h>

#include "../codecs/wm8753.h"
#include "s3c24xx-i2s.h"

static int neo1973_hifi_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;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	unsigned int pll_out = 0, bclk = 0;
	int ret = 0;
	unsigned long iis_clkrate;

	iis_clkrate = s3c24xx_i2s_get_clockrate();

	switch (params_rate(params)) {
	case 8000:
	case 16000:
		pll_out = 12288000;
		break;
	case 48000:
		bclk = WM8753_BCLK_DIV_4;
		pll_out = 12288000;
		break;
	case 96000:
		bclk = WM8753_BCLK_DIV_2;
		pll_out = 12288000;
		break;
	case 11025:
		bclk = WM8753_BCLK_DIV_16;
		pll_out = 11289600;
		break;
	case 22050:
		bclk = WM8753_BCLK_DIV_8;
		pll_out = 11289600;
		break;
	case 44100:
		bclk = WM8753_BCLK_DIV_4;
		pll_out = 11289600;
		break;
	case 88200:
		bclk = WM8753_BCLK_DIV_2;
		pll_out = 11289600;
		break;
	}

	/* set codec DAI configuration */
	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;

	/* set cpu DAI configuration */
	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;

	/* set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
		SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	/* set MCLK division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
		S3C2410_IISMOD_32FS);
	if (ret < 0)
		return ret;

	/* set codec BCLK division for sample rate */
	ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
	if (ret < 0)
		return ret;

	/* set prescaler division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
		S3C24XX_PRESCALE(4, 4));
	if (ret < 0)
		return ret;

	/* codec PLL input is PCLK/4 */
	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
		iis_clkrate / 4, pll_out);
	if (ret < 0)
		return ret;

	return 0;
}

static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	/* disable the PLL */
	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
}

/*
 * Neo1973 WM8753 HiFi DAI opserations.
 */
static struct snd_soc_ops neo1973_hifi_ops = {
	.hw_params = neo1973_hifi_hw_params,
	.hw_free = neo1973_hifi_hw_free,
};

static int neo1973_voice_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 pcmdiv = 0;
	int ret = 0;
	unsigned long iis_clkrate;

	iis_clkrate = s3c24xx_i2s_get_clockrate();

	if (params_rate(params) != 8000)
		return -EINVAL;
	if (params_channels(params) != 1)
		return -EINVAL;

	pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */

	/* todo: gg check mode (DSP_B) against CSR datasheet */
	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B |
		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, WM8753_PCMCLK, 12288000,
		SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	/* set codec PCM division for sample rate */
	ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
	if (ret < 0)
		return ret;

	/* configure and enable PLL for 12.288MHz output */
	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
		iis_clkrate / 4, 12288000);
	if (ret < 0)
		return ret;

	return 0;
}

static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	/* disable the PLL */
	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
}

static struct snd_soc_ops neo1973_voice_ops = {
	.hw_params = neo1973_voice_hw_params,
	.hw_free = neo1973_voice_hw_free,
};

/* Shared routes and controls */

static const struct snd_soc_dapm_widget neo1973_wm8753_dapm_widgets[] = {
	SND_SOC_DAPM_LINE("GSM Line Out", NULL),
	SND_SOC_DAPM_LINE("GSM Line In", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Handset Mic", NULL),
};

static const struct snd_soc_dapm_route neo1973_wm8753_routes[] = {
	/* Connections to the GSM Module */
	{"GSM Line Out", NULL, "MONO1"},
	{"GSM Line Out", NULL, "MONO2"},
	{"RXP", NULL, "GSM Line In"},
	{"RXN", NULL, "GSM Line In"},

	/* Connections to Headset */
	{"MIC1", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Headset Mic"},

	/* Call Mic */
	{"MIC2", NULL, "Mic Bias"},
	{"MIC2N", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Handset Mic"},

	/* Connect the ALC pins */
	{"ACIN", NULL, "ACOP"},
};

static const struct snd_kcontrol_new neo1973_wm8753_controls[] = {
	SOC_DAPM_PIN_SWITCH("GSM Line Out"),
	SOC_DAPM_PIN_SWITCH("GSM Line In"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Handset Mic"),
};

/* GTA02 specific routes and controls */

#ifdef CONFIG_MACH_NEO1973_GTA02

static int gta02_speaker_enabled;

static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	gta02_speaker_enabled = ucontrol->value.integer.value[0];

	gpio_set_value(GTA02_GPIO_HP_IN, !gta02_speaker_enabled);

	return 0;
}

static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = gta02_speaker_enabled;
	return 0;
}

static int lm4853_event(struct snd_soc_dapm_widget *w,
			struct snd_kcontrol *k, int event)
{
	gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(event));

	return 0;
}

static const struct snd_soc_dapm_route neo1973_gta02_routes[] = {
	/* Connections to the amp */
	{"Stereo Out", NULL, "LOUT1"},
	{"Stereo Out", NULL, "ROUT1"},

	/* Call Speaker */
	{"Handset Spk", NULL, "LOUT2"},
	{"Handset Spk", NULL, "ROUT2"},
};

static const struct snd_kcontrol_new neo1973_gta02_wm8753_controls[] = {
	SOC_DAPM_PIN_SWITCH("Handset Spk"),
	SOC_DAPM_PIN_SWITCH("Stereo Out"),

	SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0,
		lm4853_get_spk,
		lm4853_set_spk),
};

static const struct snd_soc_dapm_widget neo1973_gta02_wm8753_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Handset Spk", NULL),
	SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
};

static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec)
{
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int ret;

	ret = snd_soc_dapm_new_controls(dapm, neo1973_gta02_wm8753_dapm_widgets,
			ARRAY_SIZE(neo1973_gta02_wm8753_dapm_widgets));
	if (ret)
		return ret;

	ret = snd_soc_dapm_add_routes(dapm, neo1973_gta02_routes,
			ARRAY_SIZE(neo1973_gta02_routes));
	if (ret)
		return ret;

	ret = snd_soc_add_controls(codec, neo1973_gta02_wm8753_controls,
			ARRAY_SIZE(neo1973_gta02_wm8753_controls));
	if (ret)
		return ret;

	snd_soc_dapm_disable_pin(dapm, "Stereo Out");
	snd_soc_dapm_disable_pin(dapm, "Handset Spk");
	snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
	snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");

	return 0;
}

#else
static int neo1973_gta02_wm8753_init(struct snd_soc_code *codec) { return 0; }
#endif

static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int ret;

	/* set up NC codec pins */
	if (machine_is_neo1973_gta01()) {
		snd_soc_dapm_nc_pin(dapm, "LOUT2");
		snd_soc_dapm_nc_pin(dapm, "ROUT2");
	}
	snd_soc_dapm_nc_pin(dapm, "OUT3");
	snd_soc_dapm_nc_pin(dapm, "OUT4");
	snd_soc_dapm_nc_pin(dapm, "LINE1");
	snd_soc_dapm_nc_pin(dapm, "LINE2");

	/* Add neo1973 specific widgets */
	ret = snd_soc_dapm_new_controls(dapm, neo1973_wm8753_dapm_widgets,
			ARRAY_SIZE(neo1973_wm8753_dapm_widgets));
	if (ret)
		return ret;

	/* add neo1973 specific controls */
	ret = snd_soc_add_controls(codec, neo1973_wm8753_controls,
			ARRAY_SIZE(neo1973_wm8753_controls));
	if (ret)
		return ret;

	/* set up neo1973 specific audio routes */
	ret = snd_soc_dapm_add_routes(dapm, neo1973_wm8753_routes,
			ARRAY_SIZE(neo1973_wm8753_routes));
	if (ret)
		return ret;

	/* set endpoints to default off mode */
	snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
	snd_soc_dapm_disable_pin(dapm, "GSM Line In");
	snd_soc_dapm_disable_pin(dapm, "Headset Mic");
	snd_soc_dapm_disable_pin(dapm, "Handset Mic");

	/* allow audio paths from the GSM modem to run during suspend */
	snd_soc_dapm_ignore_suspend(dapm, "GSM Line Out");
	snd_soc_dapm_ignore_suspend(dapm, "GSM Line In");
	snd_soc_dapm_ignore_suspend(dapm, "Headset Mic");
	snd_soc_dapm_ignore_suspend(dapm, "Handset Mic");

	if (machine_is_neo1973_gta02()) {
		ret = neo1973_gta02_wm8753_init(codec);
		if (ret)
			return ret;
	}

	snd_soc_dapm_sync(dapm);

	return 0;
}

/* GTA01 specific controls */

#ifdef CONFIG_MACH_NEO1973_GTA01

static const struct snd_soc_dapm_route neo1973_lm4857_routes[] = {
	{"Amp IN", NULL, "ROUT1"},
	{"Amp IN", NULL, "LOUT1"},

	{"Handset Spk", NULL, "Amp EP"},
	{"Stereo Out", NULL, "Amp LS"},
	{"Headphone", NULL, "Amp HP"},
};

static const struct snd_soc_dapm_widget neo1973_lm4857_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Handset Spk", NULL),
	SND_SOC_DAPM_SPK("Stereo Out", NULL),
	SND_SOC_DAPM_HP("Headphone", NULL),
};

static int neo1973_lm4857_init(struct snd_soc_dapm_context *dapm)
{
	int ret;

	ret = snd_soc_dapm_new_controls(dapm, neo1973_lm4857_dapm_widgets,
			ARRAY_SIZE(neo1973_lm4857_dapm_widgets));
	if (ret)
		return ret;

	ret = snd_soc_dapm_add_routes(dapm, neo1973_lm4857_routes,
			ARRAY_SIZE(neo1973_lm4857_routes));
	if (ret)
		return ret;

	snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
	snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");
	snd_soc_dapm_ignore_suspend(dapm, "Headphone");

	snd_soc_dapm_sync(dapm);

	return 0;
}

#else
static int neo1973_lm4857_init(struct snd_soc_dapm_context *dapm) { return 0; };
#endif

static struct snd_soc_dai_link neo1973_dai[] = {
{ /* Hifi Playback - for similatious use with voice below */
	.name = "WM8753",
	.stream_name = "WM8753 HiFi",
	.platform_name = "samsung-audio",
	.cpu_dai_name = "s3c24xx-iis",
	.codec_dai_name = "wm8753-hifi",
	.codec_name = "wm8753-codec.0-001a",
	.init = neo1973_wm8753_init,
	.ops = &neo1973_hifi_ops,
},
{ /* Voice via BT */
	.name = "Bluetooth",
	.stream_name = "Voice",
	.platform_name = "samsung-audio",
	.cpu_dai_name = "dfbmcs320-pcm",
	.codec_dai_name = "wm8753-voice",
	.codec_name = "wm8753-codec.0-001a",
	.ops = &neo1973_voice_ops,
},
};

static struct snd_soc_aux_dev neo1973_aux_devs[] = {
	{
		.name = "dfbmcs320",
		.codec_name = "dfbmcs320.0",
	},
	{
		.name = "lm4857",
		.codec_name = "lm4857.0-007c",
		.init = neo1973_lm4857_init,
	},
};

static struct snd_soc_codec_conf neo1973_codec_conf[] = {
	{
		.dev_name = "lm4857.0-007c",
		.name_prefix = "Amp",
	},
};

#ifdef CONFIG_MACH_NEO1973_GTA02
static const struct gpio neo1973_gta02_gpios[] = {
	{ GTA02_GPIO_HP_IN, GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" },
	{ GTA02_GPIO_AMP_SHUT, GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" },
};
#else
static const struct gpio neo1973_gta02_gpios[] = {};
#endif

static struct snd_soc_card neo1973 = {
	.name = "neo1973",
	.dai_link = neo1973_dai,
	.num_links = ARRAY_SIZE(neo1973_dai),
	.aux_dev = neo1973_aux_devs,
	.num_aux_devs = ARRAY_SIZE(neo1973_aux_devs),
	.codec_conf = neo1973_codec_conf,
	.num_configs = ARRAY_SIZE(neo1973_codec_conf),
};

static struct platform_device *neo1973_snd_device;

static int __init neo1973_init(void)
{
	int ret;

	if (!machine_is_neo1973_gta01() && !machine_is_neo1973_gta02())
		return -ENODEV;

	if (machine_is_neo1973_gta02()) {
		neo1973.name = "neo1973gta02";
		neo1973.num_aux_devs = 1;

		ret = gpio_request_array(neo1973_gta02_gpios,
				ARRAY_SIZE(neo1973_gta02_gpios));
		if (ret)
			return ret;
	}

	neo1973_snd_device = platform_device_alloc("soc-audio", -1);
	if (!neo1973_snd_device) {
		ret = -ENOMEM;
		goto err_gpio_free;
	}

	platform_set_drvdata(neo1973_snd_device, &neo1973);
	ret = platform_device_add(neo1973_snd_device);

	if (ret)
		goto err_put_device;

	return 0;

err_put_device:
	platform_device_put(neo1973_snd_device);
err_gpio_free:
	if (machine_is_neo1973_gta02()) {
		gpio_free_array(neo1973_gta02_gpios,
				ARRAY_SIZE(neo1973_gta02_gpios));
	}
	return ret;
}
module_init(neo1973_init);

static void __exit neo1973_exit(void)
{
	platform_device_unregister(neo1973_snd_device);

	if (machine_is_neo1973_gta02()) {
		gpio_free_array(neo1973_gta02_gpios,
				ARRAY_SIZE(neo1973_gta02_gpios));
	}
}
module_exit(neo1973_exit);

/* Module information */
MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner");
MODULE_LICENSE("GPL");
Commit	Line	Data
74930bb6	1	/*
f5c4ffbd	2	* neo1973_wm8753.c -- SoC audio for Openmoko Neo1973 and Freerunner devices
74930bb6	3	*
f5c4ffbd LPC	4	* Copyright 2007 Openmoko Inc
f5c4ffbd LPC	5	* Author: Graeme Gregory <graeme@openmoko.org>
74930bb6 GG	6	* Copyright 2007 Wolfson Microelectronics PLC.
	7	* Author: Graeme Gregory
	8	* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
f5c4ffbd	9	* Copyright 2009 Wolfson Microelectronics
74930bb6 GG	10	*
	11	* This program is free software; you can redistribute it and/or modify it
	12	* under the terms of the GNU General Public License as published by the
	13	* Free Software Foundation; either version 2 of the License, or (at your
	14	* option) any later version.
74930bb6 GG	15	*/
	16
	17	#include <linux/module.h>
74930bb6	18	#include <linux/platform_device.h>
f5c4ffbd LPC	19	#include <linux/gpio.h>
f5c4ffbd LPC	20
74930bb6	21	#include <sound/soc.h>
74930bb6	22
fb2aa074	23	#include <asm/mach-types.h>
8150bc88	24	#include <plat/regs-iis.h>
f5c4ffbd	25	#include <mach/gta02.h>
aa9673cf	26
74930bb6	27	#include "../codecs/wm8753.h"
74930bb6 GG	28	#include "s3c24xx-i2s.h"
74930bb6 GG	29
74930bb6 GG	30	static int neo1973_hifi_hw_params(struct snd_pcm_substream *substream,
	31	struct snd_pcm_hw_params *params)
	32	{
	33	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	34	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	35	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
74930bb6 GG	36	unsigned int pll_out = 0, bclk = 0;
	37	int ret = 0;
	38	unsigned long iis_clkrate;
	39
	40	iis_clkrate = s3c24xx_i2s_get_clockrate();
	41
	42	switch (params_rate(params)) {
	43	case 8000:
	44	case 16000:
	45	pll_out = 12288000;
	46	break;
	47	case 48000:
	48	bclk = WM8753_BCLK_DIV_4;
	49	pll_out = 12288000;
	50	break;
	51	case 96000:
	52	bclk = WM8753_BCLK_DIV_2;
	53	pll_out = 12288000;
	54	break;
	55	case 11025:
	56	bclk = WM8753_BCLK_DIV_16;
	57	pll_out = 11289600;
	58	break;
	59	case 22050:
	60	bclk = WM8753_BCLK_DIV_8;
	61	pll_out = 11289600;
	62	break;
	63	case 44100:
	64	bclk = WM8753_BCLK_DIV_4;
	65	pll_out = 11289600;
	66	break;
	67	case 88200:
	68	bclk = WM8753_BCLK_DIV_2;
	69	pll_out = 11289600;
	70	break;
	71	}
	72
	73	/* set codec DAI configuration */
64105cfd	74	ret = snd_soc_dai_set_fmt(codec_dai,
74930bb6 GG	75	SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	76	SND_SOC_DAIFMT_CBM_CFM);
	77	if (ret < 0)
	78	return ret;
	79
	80	/* set cpu DAI configuration */
64105cfd	81	ret = snd_soc_dai_set_fmt(cpu_dai,
74930bb6 GG	82	SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	83	SND_SOC_DAIFMT_CBM_CFM);
	84	if (ret < 0)
	85	return ret;
	86
	87	/* set the codec system clock for DAC and ADC */
64105cfd	88	ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
74930bb6 GG	89	SND_SOC_CLOCK_IN);
	90	if (ret < 0)
	91	return ret;
	92
	93	/* set MCLK division for sample rate */
64105cfd	94	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
8ba02ace	95	S3C2410_IISMOD_32FS);
74930bb6 GG	96	if (ret < 0)
	97	return ret;
	98
	99	/* set codec BCLK division for sample rate */
64105cfd	100	ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
74930bb6 GG	101	if (ret < 0)
	102	return ret;
	103
	104	/* set prescaler division for sample rate */
64105cfd	105	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
8ba02ace	106	S3C24XX_PRESCALE(4, 4));
74930bb6 GG	107	if (ret < 0)
	108	return ret;
	109
	110	/* codec PLL input is PCLK/4 */
85488037	111	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
74930bb6 GG	112	iis_clkrate / 4, pll_out);
	113	if (ret < 0)
	114	return ret;
	115
	116	return 0;
	117	}
	118
	119	static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
	120	{
	121	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	122	struct snd_soc_dai *codec_dai = rtd->codec_dai;
74930bb6 GG	123
74930bb6 GG	124	/* disable the PLL */
140318aa	125	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
74930bb6 GG	126	}
	127
	128	/*
	129	* Neo1973 WM8753 HiFi DAI opserations.
	130	*/
	131	static struct snd_soc_ops neo1973_hifi_ops = {
	132	.hw_params = neo1973_hifi_hw_params,
	133	.hw_free = neo1973_hifi_hw_free,
	134	};
	135
	136	static int neo1973_voice_hw_params(struct snd_pcm_substream *substream,
	137	struct snd_pcm_hw_params *params)
	138	{
	139	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	140	struct snd_soc_dai *codec_dai = rtd->codec_dai;
74930bb6 GG	141	unsigned int pcmdiv = 0;
	142	int ret = 0;
	143	unsigned long iis_clkrate;
	144
	145	iis_clkrate = s3c24xx_i2s_get_clockrate();
	146
	147	if (params_rate(params) != 8000)
	148	return -EINVAL;
	149	if (params_channels(params) != 1)
	150	return -EINVAL;
	151
	152	pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
	153
	154	/* todo: gg check mode (DSP_B) against CSR datasheet */
	155	/* set codec DAI configuration */
64105cfd	156	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_DSP_B \|
74930bb6 GG	157	SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
	158	if (ret < 0)
	159	return ret;
	160
	161	/* set the codec system clock for DAC and ADC */
64105cfd	162	ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000,
74930bb6 GG	163	SND_SOC_CLOCK_IN);
	164	if (ret < 0)
	165	return ret;
	166
	167	/* set codec PCM division for sample rate */
64105cfd	168	ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
74930bb6 GG	169	if (ret < 0)
	170	return ret;
	171
fa2eb005	172	/* configure and enable PLL for 12.288MHz output */
140318aa	173	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
74930bb6 GG	174	iis_clkrate / 4, 12288000);
	175	if (ret < 0)
	176	return ret;
	177
	178	return 0;
	179	}
	180
	181	static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
	182	{
	183	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	184	struct snd_soc_dai *codec_dai = rtd->codec_dai;
74930bb6 GG	185
74930bb6 GG	186	/* disable the PLL */
140318aa	187	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
74930bb6 GG	188	}
	189
	190	static struct snd_soc_ops neo1973_voice_ops = {
	191	.hw_params = neo1973_voice_hw_params,
	192	.hw_free = neo1973_voice_hw_free,
	193	};
	194
f5c4ffbd LPC	195	/* Shared routes and controls */
	196
	197	static const struct snd_soc_dapm_widget neo1973_wm8753_dapm_widgets[] = {
74930bb6 GG	198	SND_SOC_DAPM_LINE("GSM Line Out", NULL),
	199	SND_SOC_DAPM_LINE("GSM Line In", NULL),
	200	SND_SOC_DAPM_MIC("Headset Mic", NULL),
f5c4ffbd	201	SND_SOC_DAPM_MIC("Handset Mic", NULL),
74930bb6 GG	202	};
74930bb6 GG	203
9b0a25f0	204	static const struct snd_soc_dapm_route neo1973_wm8753_routes[] = {
74930bb6 GG	205	/* Connections to the GSM Module */
	206	{"GSM Line Out", NULL, "MONO1"},
	207	{"GSM Line Out", NULL, "MONO2"},
	208	{"RXP", NULL, "GSM Line In"},
	209	{"RXN", NULL, "GSM Line In"},
	210
	211	/* Connections to Headset */
	212	{"MIC1", NULL, "Mic Bias"},
	213	{"Mic Bias", NULL, "Headset Mic"},
	214
	215	/* Call Mic */
	216	{"MIC2", NULL, "Mic Bias"},
	217	{"MIC2N", NULL, "Mic Bias"},
f5c4ffbd	218	{"Mic Bias", NULL, "Handset Mic"},
74930bb6 GG	219
	220	/* Connect the ALC pins */
	221	{"ACIN", NULL, "ACOP"},
74930bb6 GG	222	};
74930bb6 GG	223
9b0a25f0	224	static const struct snd_kcontrol_new neo1973_wm8753_controls[] = {
004c52e0 LPC	225	SOC_DAPM_PIN_SWITCH("GSM Line Out"),
	226	SOC_DAPM_PIN_SWITCH("GSM Line In"),
	227	SOC_DAPM_PIN_SWITCH("Headset Mic"),
f5c4ffbd	228	SOC_DAPM_PIN_SWITCH("Handset Mic"),
74930bb6 GG	229	};
74930bb6 GG	230
25985edc	231	/* GTA02 specific routes and controls */
f5c4ffbd LPC	232
	233	#ifdef CONFIG_MACH_NEO1973_GTA02
	234
	235	static int gta02_speaker_enabled;
	236
	237	static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
	238	struct snd_ctl_elem_value *ucontrol)
	239	{
	240	gta02_speaker_enabled = ucontrol->value.integer.value[0];
	241
	242	gpio_set_value(GTA02_GPIO_HP_IN, !gta02_speaker_enabled);
	243
	244	return 0;
	245	}
	246
	247	static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
	248	struct snd_ctl_elem_value *ucontrol)
	249	{
	250	ucontrol->value.integer.value[0] = gta02_speaker_enabled;
	251	return 0;
	252	}
	253
	254	static int lm4853_event(struct snd_soc_dapm_widget *w,
	255	struct snd_kcontrol *k, int event)
	256	{
	257	gpio_set_value(GTA02_GPIO_AMP_SHUT, SND_SOC_DAPM_EVENT_OFF(event));
	258
	259	return 0;
	260	}
	261
	262	static const struct snd_soc_dapm_route neo1973_gta02_routes[] = {
	263	/* Connections to the amp */
	264	{"Stereo Out", NULL, "LOUT1"},
	265	{"Stereo Out", NULL, "ROUT1"},
	266
	267	/* Call Speaker */
	268	{"Handset Spk", NULL, "LOUT2"},
	269	{"Handset Spk", NULL, "ROUT2"},
	270	};
	271
	272	static const struct snd_kcontrol_new neo1973_gta02_wm8753_controls[] = {
	273	SOC_DAPM_PIN_SWITCH("Handset Spk"),
	274	SOC_DAPM_PIN_SWITCH("Stereo Out"),
	275
	276	SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0,
	277	lm4853_get_spk,
	278	lm4853_set_spk),
	279	};
	280
	281	static const struct snd_soc_dapm_widget neo1973_gta02_wm8753_dapm_widgets[] = {
	282	SND_SOC_DAPM_SPK("Handset Spk", NULL),
	283	SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
	284	};
	285
	286	static int neo1973_gta02_wm8753_init(struct snd_soc_codec *codec)
	287	{
	288	struct snd_soc_dapm_context *dapm = &codec->dapm;
	289	int ret;
	290
	291	ret = snd_soc_dapm_new_controls(dapm, neo1973_gta02_wm8753_dapm_widgets,
	292	ARRAY_SIZE(neo1973_gta02_wm8753_dapm_widgets));
	293	if (ret)
	294	return ret;
	295
296	ret = snd_soc_dapm_add_routes(dapm, neo1973_gta02_routes,
297	ARRAY_SIZE(neo1973_gta02_routes));
298	if (ret)
299	return ret;
300
301	ret = snd_soc_add_controls(codec, neo1973_gta02_wm8753_controls,
302	ARRAY_SIZE(neo1973_gta02_wm8753_controls));
303	if (ret)
304	return ret;
305
306	snd_soc_dapm_disable_pin(dapm, "Stereo Out");
307	snd_soc_dapm_disable_pin(dapm, "Handset Spk");
308	snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
309	snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");
310
311	return 0;
312	}
313
314	#else
315	static int neo1973_gta02_wm8753_init(struct snd_soc_code *codec) { return 0; }
316	#endif
9b0a25f0	317
f0fba2ad	318	static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
74930bb6	319	{
f0fba2ad	320	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	321	struct snd_soc_dapm_context *dapm = &codec->dapm;
f5c4ffbd	322	int ret;
1894c59f	323
74930bb6	324	/* set up NC codec pins */
f5c4ffbd LPC	325	if (machine_is_neo1973_gta01()) {
	326	snd_soc_dapm_nc_pin(dapm, "LOUT2");
	327	snd_soc_dapm_nc_pin(dapm, "ROUT2");
	328	}
ce6120cc LG	329	snd_soc_dapm_nc_pin(dapm, "OUT3");
	330	snd_soc_dapm_nc_pin(dapm, "OUT4");
	331	snd_soc_dapm_nc_pin(dapm, "LINE1");
	332	snd_soc_dapm_nc_pin(dapm, "LINE2");
74930bb6	333
74930bb6	334	/* Add neo1973 specific widgets */
f5c4ffbd LPC	335	ret = snd_soc_dapm_new_controls(dapm, neo1973_wm8753_dapm_widgets,
	336	ARRAY_SIZE(neo1973_wm8753_dapm_widgets));
	337	if (ret)
	338	return ret;
e8089948	339
74930bb6	340	/* add neo1973 specific controls */
f5c4ffbd LPC	341	ret = snd_soc_add_controls(codec, neo1973_wm8753_controls,
	342	ARRAY_SIZE(neo1973_wm8753_controls));
	343	if (ret)
	344	return ret;
74930bb6	345
8f3112d7	346	/* set up neo1973 specific audio routes */
f5c4ffbd	347	ret = snd_soc_dapm_add_routes(dapm, neo1973_wm8753_routes,
9b0a25f0	348	ARRAY_SIZE(neo1973_wm8753_routes));
f5c4ffbd LPC	349	if (ret)
	350	return ret;
	351
	352	/* set endpoints to default off mode */
	353	snd_soc_dapm_disable_pin(dapm, "GSM Line Out");
	354	snd_soc_dapm_disable_pin(dapm, "GSM Line In");
	355	snd_soc_dapm_disable_pin(dapm, "Headset Mic");
	356	snd_soc_dapm_disable_pin(dapm, "Handset Mic");
	357
	358	/* allow audio paths from the GSM modem to run during suspend */
	359	snd_soc_dapm_ignore_suspend(dapm, "GSM Line Out");
	360	snd_soc_dapm_ignore_suspend(dapm, "GSM Line In");
	361	snd_soc_dapm_ignore_suspend(dapm, "Headset Mic");
	362	snd_soc_dapm_ignore_suspend(dapm, "Handset Mic");
	363
	364	if (machine_is_neo1973_gta02()) {
	365	ret = neo1973_gta02_wm8753_init(codec);
	366	if (ret)
	367	return ret;
	368	}
74930bb6	369
ce6120cc	370	snd_soc_dapm_sync(dapm);
f5c4ffbd	371
74930bb6 GG	372	return 0;
	373	}
	374
25985edc	375	/* GTA01 specific controls */
f5c4ffbd LPC	376
	377	#ifdef CONFIG_MACH_NEO1973_GTA01
	378
9b0a25f0 LPC	379	static const struct snd_soc_dapm_route neo1973_lm4857_routes[] = {
	380	{"Amp IN", NULL, "ROUT1"},
	381	{"Amp IN", NULL, "LOUT1"},
	382
	383	{"Handset Spk", NULL, "Amp EP"},
	384	{"Stereo Out", NULL, "Amp LS"},
	385	{"Headphone", NULL, "Amp HP"},
	386	};
	387
	388	static const struct snd_soc_dapm_widget neo1973_lm4857_dapm_widgets[] = {
	389	SND_SOC_DAPM_SPK("Handset Spk", NULL),
	390	SND_SOC_DAPM_SPK("Stereo Out", NULL),
	391	SND_SOC_DAPM_HP("Headphone", NULL),
	392	};
	393
	394	static int neo1973_lm4857_init(struct snd_soc_dapm_context *dapm)
	395	{
	396	int ret;
	397
	398	ret = snd_soc_dapm_new_controls(dapm, neo1973_lm4857_dapm_widgets,
	399	ARRAY_SIZE(neo1973_lm4857_dapm_widgets));
	400	if (ret)
	401	return ret;
	402
	403	ret = snd_soc_dapm_add_routes(dapm, neo1973_lm4857_routes,
	404	ARRAY_SIZE(neo1973_lm4857_routes));
	405	if (ret)
	406	return ret;
	407
	408	snd_soc_dapm_ignore_suspend(dapm, "Stereo Out");
	409	snd_soc_dapm_ignore_suspend(dapm, "Handset Spk");
	410	snd_soc_dapm_ignore_suspend(dapm, "Headphone");
	411
	412	snd_soc_dapm_sync(dapm);
	413
	414	return 0;
	415	}
	416
f5c4ffbd LPC	417	#else
	418	static int neo1973_lm4857_init(struct snd_soc_dapm_context *dapm) { return 0; };
	419	#endif
	420
74930bb6 GG	421	static struct snd_soc_dai_link neo1973_dai[] = {
	422	{ /* Hifi Playback - for similatious use with voice below */
	423	.name = "WM8753",
	424	.stream_name = "WM8753 HiFi",
58bb4072	425	.platform_name = "samsung-audio",
518aa59f	426	.cpu_dai_name = "s3c24xx-iis",
f0fba2ad	427	.codec_dai_name = "wm8753-hifi",
81d7da54	428	.codec_name = "wm8753-codec.0-001a",
74930bb6 GG	429	.init = neo1973_wm8753_init,
	430	.ops = &neo1973_hifi_ops,
	431	},
	432	{ /* Voice via BT */
	433	.name = "Bluetooth",
	434	.stream_name = "Voice",
58bb4072	435	.platform_name = "samsung-audio",
a077ff90	436	.cpu_dai_name = "dfbmcs320-pcm",
f0fba2ad	437	.codec_dai_name = "wm8753-voice",
81d7da54	438	.codec_name = "wm8753-codec.0-001a",
74930bb6 GG	439	.ops = &neo1973_voice_ops,
	440	},
	441	};
	442
9b0a25f0	443	static struct snd_soc_aux_dev neo1973_aux_devs[] = {
a077ff90 LPC	444	{
	445	.name = "dfbmcs320",
	446	.codec_name = "dfbmcs320.0",
	447	},
9b0a25f0 LPC	448	{
	449	.name = "lm4857",
	450	.codec_name = "lm4857.0-007c",
	451	.init = neo1973_lm4857_init,
	452	},
74930bb6 GG	453	};
74930bb6 GG	454
9b0a25f0 LPC	455	static struct snd_soc_codec_conf neo1973_codec_conf[] = {
	456	{
	457	.dev_name = "lm4857.0-007c",
	458	.name_prefix = "Amp",
	459	},
b6471305 JD	460	};
b6471305 JD	461
f5c4ffbd LPC	462	#ifdef CONFIG_MACH_NEO1973_GTA02
	463	static const struct gpio neo1973_gta02_gpios[] = {
	464	{ GTA02_GPIO_HP_IN, GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" },
	465	{ GTA02_GPIO_AMP_SHUT, GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" },
	466	};
	467	#else
	468	static const struct gpio neo1973_gta02_gpios[] = {};
	469	#endif
	470
9b0a25f0 LPC	471	static struct snd_soc_card neo1973 = {
	472	.name = "neo1973",
	473	.dai_link = neo1973_dai,
	474	.num_links = ARRAY_SIZE(neo1973_dai),
	475	.aux_dev = neo1973_aux_devs,
	476	.num_aux_devs = ARRAY_SIZE(neo1973_aux_devs),
	477	.codec_conf = neo1973_codec_conf,
	478	.num_configs = ARRAY_SIZE(neo1973_codec_conf),
74930bb6 GG	479	};
	480
	481	static struct platform_device *neo1973_snd_device;
	482
	483	static int __init neo1973_init(void)
	484	{
	485	int ret;
	486
f5c4ffbd	487	if (!machine_is_neo1973_gta01() && !machine_is_neo1973_gta02())
fb2aa074	488	return -ENODEV;
f5c4ffbd LPC	489
	490	if (machine_is_neo1973_gta02()) {
	491	neo1973.name = "neo1973gta02";
a077ff90	492	neo1973.num_aux_devs = 1;
f5c4ffbd LPC	493
	494	ret = gpio_request_array(neo1973_gta02_gpios,
	495	ARRAY_SIZE(neo1973_gta02_gpios));
	496	if (ret)
	497	return ret;
fb2aa074 MB	498	}
fb2aa074 MB	499
74930bb6	500	neo1973_snd_device = platform_device_alloc("soc-audio", -1);
f5c4ffbd LPC	501	if (!neo1973_snd_device) {
	502	ret = -ENOMEM;
	503	goto err_gpio_free;
	504	}
	505
f0fba2ad	506	platform_set_drvdata(neo1973_snd_device, &neo1973);
74930bb6 GG	507	ret = platform_device_add(neo1973_snd_device);
74930bb6 GG	508
f5c4ffbd	509	if (ret)
a077ff90	510	goto err_put_device;
74930bb6	511
f5c4ffbd	512	return 0;
74930bb6	513
f5c4ffbd LPC	514	err_put_device:
	515	platform_device_put(neo1973_snd_device);
	516	err_gpio_free:
	517	if (machine_is_neo1973_gta02()) {
	518	gpio_free_array(neo1973_gta02_gpios,
	519	ARRAY_SIZE(neo1973_gta02_gpios));
	520	}
74930bb6 GG	521	return ret;
74930bb6 GG	522	}
f5c4ffbd	523	module_init(neo1973_init);
74930bb6 GG	524
	525	static void __exit neo1973_exit(void)
	526	{
	527	platform_device_unregister(neo1973_snd_device);
74930bb6	528
f5c4ffbd LPC	529	if (machine_is_neo1973_gta02()) {
	530	gpio_free_array(neo1973_gta02_gpios,
	531	ARRAY_SIZE(neo1973_gta02_gpios));
	532	}
	533	}
74930bb6 GG	534	module_exit(neo1973_exit);
	535
	536	/* Module information */
443590e6	537	MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
f5c4ffbd	538	MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner");
74930bb6	539	MODULE_LICENSE("GPL");