[linux-block.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 <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;
	int err;

	/* 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");

	/* Add jive specific widgets */
	err = snd_soc_dapm_new_controls(dapm, 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(dapm, audio_map, ARRAY_SIZE(audio_map));
	snd_soc_dapm_sync(dapm);

	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	= "samsung-audio",
	.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",
	.dai_link	= &jive_dai,
	.num_links	= 1,
};

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
3093e48c	14	#include <sound/soc.h>
3093e48c BD	15
	16	#include <asm/mach-types.h>
	17
3093e48c	18	#include "s3c2412-i2s.h"
3093e48c BD	19	#include "../codecs/wm8750.h"
	20
	21	static const struct snd_soc_dapm_route audio_map[] = {
	22	{ "Headphone Jack", NULL, "LOUT1" },
	23	{ "Headphone Jack", NULL, "ROUT1" },
	24	{ "Internal Speaker", NULL, "LOUT2" },
	25	{ "Internal Speaker", NULL, "ROUT2" },
	26	{ "LINPUT1", NULL, "Line Input" },
	27	{ "RINPUT1", NULL, "Line Input" },
	28	};
	29
	30	static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
	31	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	32	SND_SOC_DAPM_SPK("Internal Speaker", NULL),
	33	SND_SOC_DAPM_LINE("Line In", NULL),
	34	};
	35
3093e48c BD	36	static int jive_hw_params(struct snd_pcm_substream *substream,
	37	struct snd_pcm_hw_params *params)
	38	{
	39	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	40	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	41	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
dc85447b	42	struct s3c_i2sv2_rate_calc div;
3093e48c BD	43	unsigned int clk = 0;
	44	int ret = 0;
	45
	46	switch (params_rate(params)) {
	47	case 8000:
	48	case 16000:
	49	case 48000:
	50	case 96000:
	51	clk = 12288000;
	52	break;
	53	case 11025:
	54	case 22050:
	55	case 44100:
	56	clk = 11289600;
	57	break;
	58	}
	59
01c4cad4	60	s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
57282427	61	s3c_i2sv2_get_clock(cpu_dai));
3093e48c BD	62
	63	/* set codec DAI configuration */
	64	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	65	SND_SOC_DAIFMT_NB_NF \|
	66	SND_SOC_DAIFMT_CBS_CFS);
	67	if (ret < 0)
	68	return ret;
	69
	70	/* set cpu DAI configuration */
	71	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	72	SND_SOC_DAIFMT_NB_NF \|
	73	SND_SOC_DAIFMT_CBS_CFS);
	74	if (ret < 0)
	75	return ret;
	76
	77	/* set the codec system clock for DAC and ADC */
	78	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
	79	SND_SOC_CLOCK_IN);
	80	if (ret < 0)
	81	return ret;
	82
	83	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
	84	if (ret < 0)
	85	return ret;
	86
	87	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
	88	div.clk_div - 1);
	89	if (ret < 0)
	90	return ret;
	91
	92	return 0;
	93	}
	94
	95	static struct snd_soc_ops jive_ops = {
3093e48c BD	96	.hw_params = jive_hw_params,
	97	};
	98
f0fba2ad	99	static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd)
3093e48c	100	{
f0fba2ad	101	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	102	struct snd_soc_dapm_context *dapm = &codec->dapm;
3093e48c BD	103	int err;
	104
	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 BD	112
3093e48c BD	113	/* Add jive specific widgets */
ce6120cc	114	err = snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets,
3093e48c BD	115	ARRAY_SIZE(wm8750_dapm_widgets));
	116	if (err) {
	117	printk(KERN_ERR "%s: failed to add widgets (%d)\n",
	118	__func__, err);
	119	return err;
	120	}
	121
ce6120cc LG	122	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
ce6120cc LG	123	snd_soc_dapm_sync(dapm);
3093e48c BD	124
	125	return 0;
	126	}
	127
	128	static struct snd_soc_dai_link jive_dai = {
	129	.name = "wm8750",
	130	.stream_name = "WM8750",
f0fba2ad LG	131	.cpu_dai_name = "s3c2412-i2s",
f0fba2ad LG	132	.codec_dai_name = "wm8750-hifi",
58bb4072	133	.platform_name = "samsung-audio",
dc5de62b	134	.codec_name = "wm8750.0-001a",
3093e48c BD	135	.init = jive_wm8750_init,
	136	.ops = &jive_ops,
	137	};
	138
	139	/* jive audio machine driver */
01c4cad4	140	static struct snd_soc_card snd_soc_machine_jive = {
3093e48c BD	141	.name = "Jive",
	142	.dai_link = &jive_dai,
	143	.num_links = 1,
	144	};
	145
3093e48c BD	146	static struct platform_device *jive_snd_device;
	147
	148	static int __init jive_init(void)
	149	{
	150	int ret;
	151
	152	if (!machine_is_jive())
	153	return 0;
	154
	155	printk("JIVE WM8750 Audio support\n");
	156
	157	jive_snd_device = platform_device_alloc("soc-audio", -1);
	158	if (!jive_snd_device)
	159	return -ENOMEM;
	160
f0fba2ad	161	platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive);
3093e48c BD	162	ret = platform_device_add(jive_snd_device);
	163
	164	if (ret)
	165	platform_device_put(jive_snd_device);
	166
	167	return ret;
	168	}
	169
	170	static void __exit jive_exit(void)
	171	{
	172	platform_device_unregister(jive_snd_device);
	173	}
	174
	175	module_init(jive_init);
	176	module_exit(jive_exit);
	177
	178	MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
	179	MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
	180	MODULE_LICENSE("GPL");