[deliverable/linux.git] / sound / soc / omap / igep0020.c

/*
 * igep0020.c  --  SoC audio for IGEP v2
 *
 * Based on sound/soc/omap/overo.c by Steve Sakoman
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include <linux/clk.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>

#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <mach/gpio.h>
#include <plat/mcbsp.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"

static int igep2_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;
	int ret;

	/* 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) {
		printk(KERN_ERR "can't set codec DAI configuration\n");
		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) {
		printk(KERN_ERR "can't set cpu DAI configuration\n");
		return ret;
	}

	/* Set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
					    SND_SOC_CLOCK_IN);
	if (ret < 0) {
		printk(KERN_ERR "can't set codec system clock\n");
		return ret;
	}

	return 0;
}

static struct snd_soc_ops igep2_ops = {
	.hw_params = igep2_hw_params,
};

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link igep2_dai = {
	.name = "TWL4030",
	.stream_name = "TWL4030",
	.cpu_dai_name = "omap-mcbsp-dai.1",
	.codec_dai_name = "twl4030-hifi",
	.platform_name = "omap-pcm-audio",
	.codec_name = "twl4030-codec",
	.ops = &igep2_ops,
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_card_igep2 = {
	.name = "igep2",
	.dai_link = &igep2_dai,
	.num_links = 1,
};

static struct platform_device *igep2_snd_device;

static int __init igep2_soc_init(void)
{
	int ret;

	if (!machine_is_igep0020())
		return -ENODEV;
	printk(KERN_INFO "IGEP v2 SoC init\n");

	igep2_snd_device = platform_device_alloc("soc-audio", -1);
	if (!igep2_snd_device) {
		printk(KERN_ERR "Platform device allocation failed\n");
		return -ENOMEM;
	}

	platform_set_drvdata(igep2_snd_device, &snd_soc_card_igep2);

	ret = platform_device_add(igep2_snd_device);
	if (ret)
		goto err1;

	return 0;

err1:
	printk(KERN_ERR "Unable to add platform device\n");
	platform_device_put(igep2_snd_device);

	return ret;
}
module_init(igep2_soc_init);

static void __exit igep2_soc_exit(void)
{
	platform_device_unregister(igep2_snd_device);
}
module_exit(igep2_soc_exit);

MODULE_AUTHOR("Enric Balletbo i Serra <eballetbo@iseebcn.com>");
MODULE_DESCRIPTION("ALSA SoC IGEP v2");
MODULE_LICENSE("GPL");
Commit	Line	Data
b2a2236d EBS	1	/*
	2	* igep0020.c -- SoC audio for IGEP v2
	3	*
	4	* Based on sound/soc/omap/overo.c by Steve Sakoman
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* version 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	18	* 02110-1301 USA
	19	*
	20	*/
	21
	22	#include <linux/clk.h>
	23	#include <linux/platform_device.h>
	24	#include <sound/core.h>
	25	#include <sound/pcm.h>
	26	#include <sound/soc.h>
b2a2236d EBS	27
	28	#include <asm/mach-types.h>
	29	#include <mach/hardware.h>
	30	#include <mach/gpio.h>
	31	#include <plat/mcbsp.h>
	32
	33	#include "omap-mcbsp.h"
	34	#include "omap-pcm.h"
b2a2236d EBS	35
	36	static int igep2_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;
b2a2236d EBS	42	int ret;
	43
	44	/* Set codec DAI configuration */
	45	ret = snd_soc_dai_set_fmt(codec_dai,
	46	SND_SOC_DAIFMT_I2S \|
	47	SND_SOC_DAIFMT_NB_NF \|
	48	SND_SOC_DAIFMT_CBM_CFM);
	49	if (ret < 0) {
	50	printk(KERN_ERR "can't set codec DAI configuration\n");
	51	return ret;
	52	}
	53
	54	/* Set cpu DAI configuration */
	55	ret = snd_soc_dai_set_fmt(cpu_dai,
	56	SND_SOC_DAIFMT_I2S \|
	57	SND_SOC_DAIFMT_NB_NF \|
	58	SND_SOC_DAIFMT_CBM_CFM);
	59	if (ret < 0) {
	60	printk(KERN_ERR "can't set cpu DAI configuration\n");
	61	return ret;
	62	}
	63
	64	/* Set the codec system clock for DAC and ADC */
	65	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
	66	SND_SOC_CLOCK_IN);
	67	if (ret < 0) {
	68	printk(KERN_ERR "can't set codec system clock\n");
	69	return ret;
	70	}
	71
	72	return 0;
	73	}
	74
	75	static struct snd_soc_ops igep2_ops = {
	76	.hw_params = igep2_hw_params,
	77	};
	78
	79	/* Digital audio interface glue - connects codec <--> CPU */
	80	static struct snd_soc_dai_link igep2_dai = {
	81	.name = "TWL4030",
	82	.stream_name = "TWL4030",
f0fba2ad LG	83	.cpu_dai_name = "omap-mcbsp-dai.1",
	84	.codec_dai_name = "twl4030-hifi",
	85	.platform_name = "omap-pcm-audio",
	86	.codec_name = "twl4030-codec",
b2a2236d EBS	87	.ops = &igep2_ops,
	88	};
	89
	90	/* Audio machine driver */
	91	static struct snd_soc_card snd_soc_card_igep2 = {
	92	.name = "igep2",
b2a2236d EBS	93	.dai_link = &igep2_dai,
	94	.num_links = 1,
	95	};
	96
b2a2236d EBS	97	static struct platform_device *igep2_snd_device;
	98
	99	static int __init igep2_soc_init(void)
	100	{
	101	int ret;
	102
ec588ae6	103	if (!machine_is_igep0020())
b2a2236d	104	return -ENODEV;
b2a2236d EBS	105	printk(KERN_INFO "IGEP v2 SoC init\n");
	106
	107	igep2_snd_device = platform_device_alloc("soc-audio", -1);
	108	if (!igep2_snd_device) {
	109	printk(KERN_ERR "Platform device allocation failed\n");
	110	return -ENOMEM;
	111	}
	112
f0fba2ad	113	platform_set_drvdata(igep2_snd_device, &snd_soc_card_igep2);
b2a2236d EBS	114
	115	ret = platform_device_add(igep2_snd_device);
	116	if (ret)
	117	goto err1;
	118
	119	return 0;
	120
	121	err1:
	122	printk(KERN_ERR "Unable to add platform device\n");
	123	platform_device_put(igep2_snd_device);
	124
	125	return ret;
	126	}
	127	module_init(igep2_soc_init);
	128
	129	static void __exit igep2_soc_exit(void)
	130	{
	131	platform_device_unregister(igep2_snd_device);
	132	}
	133	module_exit(igep2_soc_exit);
	134
	135	MODULE_AUTHOR("Enric Balletbo i Serra <eballetbo@iseebcn.com>");
	136	MODULE_DESCRIPTION("ALSA SoC IGEP v2");
	137	MODULE_LICENSE("GPL");