[deliverable/linux.git] / sound / soc / samsung / jive_wm8750.c

/* sound/soc/samsung/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 <sound/soc.h>

#include <asm/mach-types.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_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;
	struct s3c_i2sv2_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;
	}

	s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
				s3c_i2sv2_get_clock(cpu_dai));

	/* 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 = {
	.hw_params	= jive_hw_params,
};

static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	/* These endpoints are not being used. */
	snd_soc_dapm_nc_pin(dapm, "LINPUT2");
	snd_soc_dapm_nc_pin(dapm, "RINPUT2");
	snd_soc_dapm_nc_pin(dapm, "LINPUT3");
	snd_soc_dapm_nc_pin(dapm, "RINPUT3");
	snd_soc_dapm_nc_pin(dapm, "OUT3");
	snd_soc_dapm_nc_pin(dapm, "MONO");

	return 0;
}

static struct snd_soc_dai_link jive_dai = {
	.name		= "wm8750",
	.stream_name	= "WM8750",
	.cpu_dai_name	= "s3c2412-i2s",
	.codec_dai_name = "wm8750-hifi",
	.platform_name	= "s3c2412-i2s",
	.codec_name	= "wm8750.0-001a",
	.init		= jive_wm8750_init,
	.ops		= &jive_ops,
};

/* jive audio machine driver */
static struct snd_soc_card snd_soc_machine_jive = {
	.name		= "Jive",
	.owner		= THIS_MODULE,
	.dai_link	= &jive_dai,
	.num_links	= 1,

	.dapm_widgets	= wm8750_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
	.dapm_routes	= audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
};

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, &snd_soc_machine_jive);
	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");
Commit	Line	Data
5033f43c	1	/* sound/soc/samsung/jive_wm8750.c
3093e48c BD	2	*
	3	* Copyright 2007,2008 Simtec Electronics
	4	*
	5	* Based on sound/soc/pxa/spitz.c
	6	* Copyright 2005 Wolfson Microelectronics PLC.
	7	* Copyright 2005 Openedhand Ltd.
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 as
	11	* published by the Free Software Foundation.
	12	*/
	13
da155d5b	14	#include <linux/module.h>
3093e48c	15	#include <sound/soc.h>
3093e48c BD	16
	17	#include <asm/mach-types.h>
	18
3093e48c	19	#include "s3c2412-i2s.h"
3093e48c BD	20	#include "../codecs/wm8750.h"
	21
	22	static const struct snd_soc_dapm_route audio_map[] = {
	23	{ "Headphone Jack", NULL, "LOUT1" },
	24	{ "Headphone Jack", NULL, "ROUT1" },
	25	{ "Internal Speaker", NULL, "LOUT2" },
	26	{ "Internal Speaker", NULL, "ROUT2" },
	27	{ "LINPUT1", NULL, "Line Input" },
	28	{ "RINPUT1", NULL, "Line Input" },
	29	};
	30
	31	static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
	32	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	33	SND_SOC_DAPM_SPK("Internal Speaker", NULL),
	34	SND_SOC_DAPM_LINE("Line In", NULL),
	35	};
	36
3093e48c BD	37	static int jive_hw_params(struct snd_pcm_substream *substream,
	38	struct snd_pcm_hw_params *params)
	39	{
	40	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	41	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	42	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
dc85447b	43	struct s3c_i2sv2_rate_calc div;
3093e48c BD	44	unsigned int clk = 0;
	45	int ret = 0;
	46
	47	switch (params_rate(params)) {
	48	case 8000:
	49	case 16000:
	50	case 48000:
	51	case 96000:
	52	clk = 12288000;
	53	break;
	54	case 11025:
	55	case 22050:
	56	case 44100:
	57	clk = 11289600;
	58	break;
	59	}
	60
01c4cad4	61	s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
57282427	62	s3c_i2sv2_get_clock(cpu_dai));
3093e48c BD	63
	64	/* set codec DAI configuration */
	65	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	66	SND_SOC_DAIFMT_NB_NF \|
	67	SND_SOC_DAIFMT_CBS_CFS);
	68	if (ret < 0)
	69	return ret;
	70
	71	/* set cpu DAI configuration */
	72	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	73	SND_SOC_DAIFMT_NB_NF \|
	74	SND_SOC_DAIFMT_CBS_CFS);
	75	if (ret < 0)
	76	return ret;
	77
	78	/* set the codec system clock for DAC and ADC */
	79	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
	80	SND_SOC_CLOCK_IN);
	81	if (ret < 0)
	82	return ret;
	83
	84	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
	85	if (ret < 0)
	86	return ret;
	87
	88	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
	89	div.clk_div - 1);
	90	if (ret < 0)
	91	return ret;
	92
	93	return 0;
	94	}
	95
	96	static struct snd_soc_ops jive_ops = {
3093e48c BD	97	.hw_params = jive_hw_params,
	98	};
	99
f0fba2ad	100	static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd)
3093e48c	101	{
f0fba2ad	102	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	103	struct snd_soc_dapm_context *dapm = &codec->dapm;
3093e48c BD	104
3093e48c BD	105	/* These endpoints are not being used. */
ce6120cc LG	106	snd_soc_dapm_nc_pin(dapm, "LINPUT2");
	107	snd_soc_dapm_nc_pin(dapm, "RINPUT2");
	108	snd_soc_dapm_nc_pin(dapm, "LINPUT3");
	109	snd_soc_dapm_nc_pin(dapm, "RINPUT3");
	110	snd_soc_dapm_nc_pin(dapm, "OUT3");
	111	snd_soc_dapm_nc_pin(dapm, "MONO");
3093e48c	112
3093e48c BD	113	return 0;
	114	}
	115
	116	static struct snd_soc_dai_link jive_dai = {
	117	.name = "wm8750",
	118	.stream_name = "WM8750",
f0fba2ad LG	119	.cpu_dai_name = "s3c2412-i2s",
f0fba2ad LG	120	.codec_dai_name = "wm8750-hifi",
a08485d8	121	.platform_name = "s3c2412-i2s",
dc5de62b	122	.codec_name = "wm8750.0-001a",
3093e48c BD	123	.init = jive_wm8750_init,
	124	.ops = &jive_ops,
	125	};
	126
	127	/* jive audio machine driver */
01c4cad4	128	static struct snd_soc_card snd_soc_machine_jive = {
3093e48c	129	.name = "Jive",
095d79dc	130	.owner = THIS_MODULE,
3093e48c BD	131	.dai_link = &jive_dai,
3093e48c BD	132	.num_links = 1,
03b5362d	133
68264d2a	134	.dapm_widgets = wm8750_dapm_widgets,
03b5362d MB	135	.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
	136	.dapm_routes = audio_map,
	137	.num_dapm_routes = ARRAY_SIZE(audio_map),
3093e48c BD	138	};
3093e48c BD	139
3093e48c BD	140	static struct platform_device *jive_snd_device;
	141
	142	static int __init jive_init(void)
	143	{
	144	int ret;
	145
	146	if (!machine_is_jive())
	147	return 0;
	148
	149	printk("JIVE WM8750 Audio support\n");
	150
	151	jive_snd_device = platform_device_alloc("soc-audio", -1);
	152	if (!jive_snd_device)
	153	return -ENOMEM;
	154
f0fba2ad	155	platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive);
3093e48c BD	156	ret = platform_device_add(jive_snd_device);
	157
	158	if (ret)
	159	platform_device_put(jive_snd_device);
	160
	161	return ret;
	162	}
	163
	164	static void __exit jive_exit(void)
	165	{
	166	platform_device_unregister(jive_snd_device);
	167	}
	168
	169	module_init(jive_init);
	170	module_exit(jive_exit);
	171
	172	MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
	173	MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
	174	MODULE_LICENSE("GPL");