[deliverable/linux.git] / sound / soc / atmel / snd-soc-afeb9260.c

/*
 * afeb9260.c  --  SoC audio for AFEB9260
 *
 * Copyright (C) 2009 Sergey Lapin <slapin@ossfans.org>
 *
 * 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/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/platform_device.h>

#include <linux/atmel-ssc.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>

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

#include "../codecs/tlv320aic23.h"
#include "atmel-pcm.h"
#include "atmel_ssc_dai.h"

#define CODEC_CLOCK 	12000000

static int afeb9260_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 err;

	/* Set codec DAI configuration */
	err = snd_soc_dai_set_fmt(codec_dai,
				  SND_SOC_DAIFMT_I2S|
				  SND_SOC_DAIFMT_NB_IF |
				  SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0) {
		printk(KERN_ERR "can't set codec DAI configuration\n");
		return err;
	}

	/* Set cpu DAI configuration */
	err = snd_soc_dai_set_fmt(cpu_dai,
				  SND_SOC_DAIFMT_I2S |
				  SND_SOC_DAIFMT_NB_IF |
				  SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0) {
		printk(KERN_ERR "can't set cpu DAI configuration\n");
		return err;
	}

	/* Set the codec system clock for DAC and ADC */
	err =
	    snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN);

	if (err < 0) {
		printk(KERN_ERR "can't set codec system clock\n");
		return err;
	}

	return err;
}

static struct snd_soc_ops afeb9260_ops = {
	.hw_params = afeb9260_hw_params,
};

static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_LINE("Line In", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{"Headphone Jack", NULL, "LHPOUT"},
	{"Headphone Jack", NULL, "RHPOUT"},

	{"LLINEIN", NULL, "Line In"},
	{"RLINEIN", NULL, "Line In"},

	{"MICIN", NULL, "Mic Jack"},
};

static int afeb9260_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	/* Add afeb9260 specific widgets */
	snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
				  ARRAY_SIZE(tlv320aic23_dapm_widgets));

	/* Set up afeb9260 specific audio path audio_map */
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	snd_soc_dapm_enable_pin(dapm, "Line In");
	snd_soc_dapm_enable_pin(dapm, "Mic Jack");

	return 0;
}

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link afeb9260_dai = {
	.name = "TLV320AIC23",
	.stream_name = "AIC23",
	.cpu_dai_name = "atmel-ssc-dai.0",
	.codec_dai_name = "tlv320aic23-hifi",
	.platform_name = "atmel_pcm-audio",
	.codec_name = "tlv320aic23-codec.0-001a",
	.init = afeb9260_tlv320aic23_init,
	.ops = &afeb9260_ops,
};

/* Audio machine driver */
static struct snd_soc_card snd_soc_machine_afeb9260 = {
	.name = "AFEB9260",
	.dai_link = &afeb9260_dai,
	.num_links = 1,
};

static struct platform_device *afeb9260_snd_device;

static int __init afeb9260_soc_init(void)
{
	int err;
	struct device *dev;

	if (!(machine_is_afeb9260()))
		return -ENODEV;


	afeb9260_snd_device = platform_device_alloc("soc-audio", -1);
	if (!afeb9260_snd_device) {
		printk(KERN_ERR "ASoC: Platform device allocation failed\n");
		return -ENOMEM;
	}

	platform_set_drvdata(afeb9260_snd_device, &snd_soc_machine_afeb9260);
	err = platform_device_add(afeb9260_snd_device);
	if (err)
		goto err1;

	dev = &afeb9260_snd_device->dev;

	return 0;
err1:
	platform_device_put(afeb9260_snd_device);
	return err;
}

static void __exit afeb9260_soc_exit(void)
{
	platform_device_unregister(afeb9260_snd_device);
}

module_init(afeb9260_soc_init);
module_exit(afeb9260_soc_exit);

MODULE_AUTHOR("Sergey Lapin <slapin@ossfans.org>");
MODULE_DESCRIPTION("ALSA SoC for AFEB9260");
MODULE_LICENSE("GPL");
Commit	Line	Data
b4df0a6c SL	1	/*
	2	* afeb9260.c -- SoC audio for AFEB9260
	3	*
	4	* Copyright (C) 2009 Sergey Lapin <slapin@ossfans.org>
	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/module.h>
	23	#include <linux/moduleparam.h>
	24	#include <linux/kernel.h>
	25	#include <linux/clk.h>
	26	#include <linux/platform_device.h>
	27
	28	#include <linux/atmel-ssc.h>
	29	#include <sound/core.h>
	30	#include <sound/pcm.h>
	31	#include <sound/pcm_params.h>
	32	#include <sound/soc.h>
b4df0a6c SL	33
	34	#include <asm/mach-types.h>
	35	#include <mach/hardware.h>
	36	#include <linux/gpio.h>
	37
	38	#include "../codecs/tlv320aic23.h"
	39	#include "atmel-pcm.h"
	40	#include "atmel_ssc_dai.h"
	41
	42	#define CODEC_CLOCK 12000000
	43
	44	static int afeb9260_hw_params(struct snd_pcm_substream *substream,
	45	struct snd_pcm_hw_params *params)
	46	{
	47	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	48	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	49	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
b4df0a6c SL	50	int err;
	51
	52	/* Set codec DAI configuration */
	53	err = snd_soc_dai_set_fmt(codec_dai,
	54	SND_SOC_DAIFMT_I2S\|
	55	SND_SOC_DAIFMT_NB_IF \|
	56	SND_SOC_DAIFMT_CBM_CFM);
	57	if (err < 0) {
	58	printk(KERN_ERR "can't set codec DAI configuration\n");
	59	return err;
	60	}
	61
	62	/* Set cpu DAI configuration */
	63	err = snd_soc_dai_set_fmt(cpu_dai,
	64	SND_SOC_DAIFMT_I2S \|
	65	SND_SOC_DAIFMT_NB_IF \|
	66	SND_SOC_DAIFMT_CBM_CFM);
	67	if (err < 0) {
	68	printk(KERN_ERR "can't set cpu DAI configuration\n");
	69	return err;
	70	}
	71
	72	/* Set the codec system clock for DAC and ADC */
	73	err =
	74	snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN);
	75
	76	if (err < 0) {
	77	printk(KERN_ERR "can't set codec system clock\n");
	78	return err;
	79	}
	80
	81	return err;
	82	}
	83
	84	static struct snd_soc_ops afeb9260_ops = {
	85	.hw_params = afeb9260_hw_params,
	86	};
	87
	88	static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
	89	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	90	SND_SOC_DAPM_LINE("Line In", NULL),
	91	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	92	};
	93
	94	static const struct snd_soc_dapm_route audio_map[] = {
	95	{"Headphone Jack", NULL, "LHPOUT"},
	96	{"Headphone Jack", NULL, "RHPOUT"},
	97
	98	{"LLINEIN", NULL, "Line In"},
	99	{"RLINEIN", NULL, "Line In"},
	100
	101	{"MICIN", NULL, "Mic Jack"},
	102	};
	103
f0fba2ad	104	static int afeb9260_tlv320aic23_init(struct snd_soc_pcm_runtime *rtd)
b4df0a6c	105	{
f0fba2ad	106	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	107	struct snd_soc_dapm_context *dapm = &codec->dapm;
b4df0a6c SL	108
b4df0a6c SL	109	/* Add afeb9260 specific widgets */
ce6120cc	110	snd_soc_dapm_new_controls(dapm, tlv320aic23_dapm_widgets,
b4df0a6c SL	111	ARRAY_SIZE(tlv320aic23_dapm_widgets));
	112
	113	/* Set up afeb9260 specific audio path audio_map */
ce6120cc	114	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
b4df0a6c	115
ce6120cc LG	116	snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
	117	snd_soc_dapm_enable_pin(dapm, "Line In");
	118	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
b4df0a6c	119
b4df0a6c SL	120	return 0;
	121	}
	122
	123	/* Digital audio interface glue - connects codec <--> CPU */
	124	static struct snd_soc_dai_link afeb9260_dai = {
	125	.name = "TLV320AIC23",
	126	.stream_name = "AIC23",
f0fba2ad LG	127	.cpu_dai_name = "atmel-ssc-dai.0",
	128	.codec_dai_name = "tlv320aic23-hifi",
	129	.platform_name = "atmel_pcm-audio",
81d7da54	130	.codec_name = "tlv320aic23-codec.0-001a",
b4df0a6c SL	131	.init = afeb9260_tlv320aic23_init,
	132	.ops = &afeb9260_ops,
	133	};
	134
	135	/* Audio machine driver */
	136	static struct snd_soc_card snd_soc_machine_afeb9260 = {
	137	.name = "AFEB9260",
b4df0a6c SL	138	.dai_link = &afeb9260_dai,
	139	.num_links = 1,
	140	};
	141
b4df0a6c SL	142	static struct platform_device *afeb9260_snd_device;
	143
	144	static int __init afeb9260_soc_init(void)
	145	{
	146	int err;
	147	struct device *dev;
b4df0a6c SL	148
	149	if (!(machine_is_afeb9260()))
	150	return -ENODEV;
	151
b4df0a6c SL	152
	153	afeb9260_snd_device = platform_device_alloc("soc-audio", -1);
	154	if (!afeb9260_snd_device) {
	155	printk(KERN_ERR "ASoC: Platform device allocation failed\n");
	156	return -ENOMEM;
	157	}
	158
f0fba2ad	159	platform_set_drvdata(afeb9260_snd_device, &snd_soc_machine_afeb9260);
b4df0a6c SL	160	err = platform_device_add(afeb9260_snd_device);
	161	if (err)
	162	goto err1;
	163
	164	dev = &afeb9260_snd_device->dev;
	165
	166	return 0;
	167	err1:
b4df0a6c	168	platform_device_put(afeb9260_snd_device);
b4df0a6c	169	return err;
b4df0a6c SL	170	}
	171
	172	static void __exit afeb9260_soc_exit(void)
	173	{
	174	platform_device_unregister(afeb9260_snd_device);
	175	}
	176
	177	module_init(afeb9260_soc_init);
	178	module_exit(afeb9260_soc_exit);
	179
	180	MODULE_AUTHOR("Sergey Lapin <slapin@ossfans.org>");
	181	MODULE_DESCRIPTION("ALSA SoC for AFEB9260");
	182	MODULE_LICENSE("GPL");
	183