[deliverable/linux.git] / sound / soc / s3c24xx / jive_wm8750.c

/* 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 <asm/mach-types.h>

#include "dma.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-codec.0-0x1a",
	.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
3093e48c BD	1	/* sound/soc/s3c24xx/jive_wm8750.c
	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
	14	#include <linux/module.h>
	15	#include <linux/moduleparam.h>
	16	#include <linux/timer.h>
	17	#include <linux/interrupt.h>
	18	#include <linux/platform_device.h>
	19	#include <linux/clk.h>
	20
	21	#include <sound/core.h>
	22	#include <sound/pcm.h>
	23	#include <sound/soc.h>
3093e48c BD	24
	25	#include <asm/mach-types.h>
	26
4b640cf3	27	#include "dma.h"
3093e48c BD	28	#include "s3c2412-i2s.h"
	29
	30	#include "../codecs/wm8750.h"
	31
	32	static const struct snd_soc_dapm_route audio_map[] = {
	33	{ "Headphone Jack", NULL, "LOUT1" },
	34	{ "Headphone Jack", NULL, "ROUT1" },
	35	{ "Internal Speaker", NULL, "LOUT2" },
	36	{ "Internal Speaker", NULL, "ROUT2" },
	37	{ "LINPUT1", NULL, "Line Input" },
	38	{ "RINPUT1", NULL, "Line Input" },
	39	};
	40
	41	static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
	42	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	43	SND_SOC_DAPM_SPK("Internal Speaker", NULL),
	44	SND_SOC_DAPM_LINE("Line In", NULL),
	45	};
	46
3093e48c BD	47	static int jive_hw_params(struct snd_pcm_substream *substream,
	48	struct snd_pcm_hw_params *params)
	49	{
	50	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	51	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	52	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
dc85447b	53	struct s3c_i2sv2_rate_calc div;
3093e48c BD	54	unsigned int clk = 0;
	55	int ret = 0;
	56
	57	switch (params_rate(params)) {
	58	case 8000:
	59	case 16000:
	60	case 48000:
	61	case 96000:
	62	clk = 12288000;
	63	break;
	64	case 11025:
	65	case 22050:
	66	case 44100:
	67	clk = 11289600;
	68	break;
	69	}
	70
01c4cad4	71	s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
57282427	72	s3c_i2sv2_get_clock(cpu_dai));
3093e48c BD	73
	74	/* set codec DAI configuration */
	75	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	76	SND_SOC_DAIFMT_NB_NF \|
	77	SND_SOC_DAIFMT_CBS_CFS);
	78	if (ret < 0)
	79	return ret;
	80
	81	/* set cpu DAI configuration */
	82	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	83	SND_SOC_DAIFMT_NB_NF \|
	84	SND_SOC_DAIFMT_CBS_CFS);
	85	if (ret < 0)
	86	return ret;
	87
	88	/* set the codec system clock for DAC and ADC */
	89	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
	90	SND_SOC_CLOCK_IN);
	91	if (ret < 0)
	92	return ret;
	93
	94	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
	95	if (ret < 0)
	96	return ret;
	97
	98	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
	99	div.clk_div - 1);
	100	if (ret < 0)
	101	return ret;
	102
	103	return 0;
	104	}
	105
	106	static struct snd_soc_ops jive_ops = {
3093e48c BD	107	.hw_params = jive_hw_params,
	108	};
	109
f0fba2ad	110	static int jive_wm8750_init(struct snd_soc_pcm_runtime *rtd)
3093e48c	111	{
f0fba2ad	112	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	113	struct snd_soc_dapm_context *dapm = &codec->dapm;
3093e48c BD	114	int err;
	115
	116	/* These endpoints are not being used. */
ce6120cc LG	117	snd_soc_dapm_nc_pin(dapm, "LINPUT2");
	118	snd_soc_dapm_nc_pin(dapm, "RINPUT2");
	119	snd_soc_dapm_nc_pin(dapm, "LINPUT3");
	120	snd_soc_dapm_nc_pin(dapm, "RINPUT3");
	121	snd_soc_dapm_nc_pin(dapm, "OUT3");
	122	snd_soc_dapm_nc_pin(dapm, "MONO");
3093e48c BD	123
3093e48c BD	124	/* Add jive specific widgets */
ce6120cc	125	err = snd_soc_dapm_new_controls(dapm, wm8750_dapm_widgets,
3093e48c BD	126	ARRAY_SIZE(wm8750_dapm_widgets));
	127	if (err) {
	128	printk(KERN_ERR "%s: failed to add widgets (%d)\n",
	129	__func__, err);
	130	return err;
	131	}
	132
ce6120cc LG	133	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
ce6120cc LG	134	snd_soc_dapm_sync(dapm);
3093e48c BD	135
	136	return 0;
	137	}
	138
	139	static struct snd_soc_dai_link jive_dai = {
	140	.name = "wm8750",
	141	.stream_name = "WM8750",
f0fba2ad LG	142	.cpu_dai_name = "s3c2412-i2s",
f0fba2ad LG	143	.codec_dai_name = "wm8750-hifi",
58bb4072	144	.platform_name = "samsung-audio",
f0fba2ad	145	.codec_name = "wm8750-codec.0-0x1a",
3093e48c BD	146	.init = jive_wm8750_init,
	147	.ops = &jive_ops,
	148	};
	149
	150	/* jive audio machine driver */
01c4cad4	151	static struct snd_soc_card snd_soc_machine_jive = {
3093e48c BD	152	.name = "Jive",
	153	.dai_link = &jive_dai,
	154	.num_links = 1,
	155	};
	156
3093e48c BD	157	static struct platform_device *jive_snd_device;
	158
	159	static int __init jive_init(void)
	160	{
	161	int ret;
	162
	163	if (!machine_is_jive())
	164	return 0;
	165
	166	printk("JIVE WM8750 Audio support\n");
	167
	168	jive_snd_device = platform_device_alloc("soc-audio", -1);
	169	if (!jive_snd_device)
	170	return -ENOMEM;
	171
f0fba2ad	172	platform_set_drvdata(jive_snd_device, &snd_soc_machine_jive);
3093e48c BD	173	ret = platform_device_add(jive_snd_device);
	174
	175	if (ret)
	176	platform_device_put(jive_snd_device);
	177
	178	return ret;
	179	}
	180
	181	static void __exit jive_exit(void)
	182	{
	183	platform_device_unregister(jive_snd_device);
	184	}
	185
	186	module_init(jive_init);
	187	module_exit(jive_exit);
	188
	189	MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
	190	MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
	191	MODULE_LICENSE("GPL");