[linux-2.6-block.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 <sound/soc-dapm.h>

#include <asm/mach-types.h>

#include "s3c-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->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->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),
				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 = {
	.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_nc_pin(codec, "LINPUT2");
	snd_soc_dapm_nc_pin(codec, "RINPUT2");
	snd_soc_dapm_nc_pin(codec, "LINPUT3");
	snd_soc_dapm_nc_pin(codec, "RINPUT3");
	snd_soc_dapm_nc_pin(codec, "OUT3");
	snd_soc_dapm_nc_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_card snd_soc_machine_jive = {
	.name		= "Jive",
	.platform	= &s3c24xx_soc_platform,
	.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 = {
	.card		= &snd_soc_machine_jive,
	.codec_dev	= &soc_codec_dev_wm8750,
	.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");
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>
	24	#include <sound/soc-dapm.h>
	25
	26	#include <asm/mach-types.h>
	27
d3ff5a3e	28	#include "s3c-dma.h"
3093e48c BD	29	#include "s3c2412-i2s.h"
	30
	31	#include "../codecs/wm8750.h"
	32
	33	static const struct snd_soc_dapm_route audio_map[] = {
	34	{ "Headphone Jack", NULL, "LOUT1" },
	35	{ "Headphone Jack", NULL, "ROUT1" },
	36	{ "Internal Speaker", NULL, "LOUT2" },
	37	{ "Internal Speaker", NULL, "ROUT2" },
	38	{ "LINPUT1", NULL, "Line Input" },
	39	{ "RINPUT1", NULL, "Line Input" },
	40	};
	41
	42	static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
	43	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	44	SND_SOC_DAPM_SPK("Internal Speaker", NULL),
	45	SND_SOC_DAPM_LINE("Line In", NULL),
	46	};
	47
3093e48c BD	48	static int jive_hw_params(struct snd_pcm_substream *substream,
	49	struct snd_pcm_hw_params *params)
	50	{
	51	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	52	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	53	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
dc85447b	54	struct s3c_i2sv2_rate_calc div;
3093e48c BD	55	unsigned int clk = 0;
	56	int ret = 0;
	57
	58	switch (params_rate(params)) {
	59	case 8000:
	60	case 16000:
	61	case 48000:
	62	case 96000:
	63	clk = 12288000;
	64	break;
	65	case 11025:
	66	case 22050:
	67	case 44100:
	68	clk = 11289600;
	69	break;
	70	}
	71
01c4cad4 BD	72	s3c_i2sv2_iis_calc_rate(&div, NULL, params_rate(params),
01c4cad4 BD	73	s3c2412_get_iisclk());
3093e48c BD	74
	75	/* set codec DAI configuration */
	76	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
	77	SND_SOC_DAIFMT_NB_NF \|
	78	SND_SOC_DAIFMT_CBS_CFS);
	79	if (ret < 0)
	80	return ret;
	81
	82	/* set cpu DAI configuration */
	83	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
	84	SND_SOC_DAIFMT_NB_NF \|
	85	SND_SOC_DAIFMT_CBS_CFS);
	86	if (ret < 0)
	87	return ret;
	88
	89	/* set the codec system clock for DAC and ADC */
	90	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
	91	SND_SOC_CLOCK_IN);
	92	if (ret < 0)
	93	return ret;
	94
	95	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_RCLK, div.fs_div);
	96	if (ret < 0)
	97	return ret;
	98
	99	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C2412_DIV_PRESCALER,
	100	div.clk_div - 1);
	101	if (ret < 0)
	102	return ret;
	103
	104	return 0;
	105	}
	106
	107	static struct snd_soc_ops jive_ops = {
3093e48c BD	108	.hw_params = jive_hw_params,
	109	};
	110
	111	static int jive_wm8750_init(struct snd_soc_codec *codec)
	112	{
	113	int err;
	114
	115	/* These endpoints are not being used. */
a1b3eaeb MB	116	snd_soc_dapm_nc_pin(codec, "LINPUT2");
	117	snd_soc_dapm_nc_pin(codec, "RINPUT2");
	118	snd_soc_dapm_nc_pin(codec, "LINPUT3");
	119	snd_soc_dapm_nc_pin(codec, "RINPUT3");
	120	snd_soc_dapm_nc_pin(codec, "OUT3");
	121	snd_soc_dapm_nc_pin(codec, "MONO");
3093e48c BD	122
	123	/* Add jive specific widgets */
	124	err = snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets,
	125	ARRAY_SIZE(wm8750_dapm_widgets));
	126	if (err) {
	127	printk(KERN_ERR "%s: failed to add widgets (%d)\n",
	128	__func__, err);
	129	return err;
	130	}
	131
	132	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
	133	snd_soc_dapm_sync(codec);
	134
	135	return 0;
	136	}
	137
	138	static struct snd_soc_dai_link jive_dai = {
	139	.name = "wm8750",
	140	.stream_name = "WM8750",
	141	.cpu_dai = &s3c2412_i2s_dai,
	142	.codec_dai = &wm8750_dai,
	143	.init = jive_wm8750_init,
	144	.ops = &jive_ops,
	145	};
	146
	147	/* jive audio machine driver */
01c4cad4	148	static struct snd_soc_card snd_soc_machine_jive = {
3093e48c	149	.name = "Jive",
01c4cad4	150	.platform = &s3c24xx_soc_platform,
3093e48c BD	151	.dai_link = &jive_dai,
	152	.num_links = 1,
	153	};
	154
	155	/* jive audio private data */
	156	static struct wm8750_setup_data jive_wm8750_setup = {
	157	};
	158
	159	/* jive audio subsystem */
	160	static struct snd_soc_device jive_snd_devdata = {
01c4cad4 BD	161	.card = &snd_soc_machine_jive,
01c4cad4 BD	162	.codec_dev = &soc_codec_dev_wm8750,
3093e48c BD	163	.codec_data = &jive_wm8750_setup,
	164	};
	165
	166	static struct platform_device *jive_snd_device;
	167
	168	static int __init jive_init(void)
	169	{
	170	int ret;
	171
	172	if (!machine_is_jive())
	173	return 0;
	174
	175	printk("JIVE WM8750 Audio support\n");
	176
	177	jive_snd_device = platform_device_alloc("soc-audio", -1);
	178	if (!jive_snd_device)
	179	return -ENOMEM;
	180
	181	platform_set_drvdata(jive_snd_device, &jive_snd_devdata);
	182	jive_snd_devdata.dev = &jive_snd_device->dev;
	183	ret = platform_device_add(jive_snd_device);
	184
	185	if (ret)
	186	platform_device_put(jive_snd_device);
	187
	188	return ret;
	189	}
	190
	191	static void __exit jive_exit(void)
	192	{
	193	platform_device_unregister(jive_snd_device);
	194	}
	195
	196	module_init(jive_init);
	197	module_exit(jive_exit);
	198
	199	MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
	200	MODULE_DESCRIPTION("ALSA SoC Jive Audio support");
	201	MODULE_LICENSE("GPL");