[deliverable/linux.git] / sound / soc / blackfin / bf5xx-ssm2602.c

/*
 * File:         sound/soc/blackfin/bf5xx-ssm2602.c
 * Author:       Cliff Cai <Cliff.Cai@analog.com>
 *
 * Created:      Tue June 06 2008
 * Description:  board driver for SSM2602 sound chip
 *
 * Modified:
 *               Copyright 2008 Analog Devices Inc.
 *
 * Bugs:         Enter bugs at http://blackfin.uclinux.org/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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, see the file COPYING, or 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/device.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/pcm_params.h>

#include <asm/dma.h>
#include <asm/portmux.h>
#include <linux/gpio.h>
#include "../codecs/ssm2602.h"
#include "bf5xx-sport.h"

static struct snd_soc_card bf5xx_ssm2602;

static int bf5xx_ssm2602_dai_init(struct snd_soc_pcm_runtime *rtd)
{
	/*
	 * If you are using a crystal source which frequency is not 12MHz
	 * then modify the below case statement with frequency of the crystal.
	 *
	 * If you are using the SPORT to generate clocking then this is
	 * where to do it.
	 */
	return snd_soc_dai_set_sysclk(rtd->codec_dai, SSM2602_SYSCLK, 12000000,
		SND_SOC_CLOCK_IN);
}

/* CODEC is master for BCLK and LRC in this configuration. */
#define BF5XX_SSM2602_DAIFMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \
				SND_SOC_DAIFMT_CBM_CFM)

static struct snd_soc_dai_link bf5xx_ssm2602_dai[] = {
	{
		.name = "ssm2602",
		.stream_name = "SSM2602",
		.cpu_dai_name = "bfin-i2s.0",
		.codec_dai_name = "ssm2602-hifi",
		.platform_name = "bfin-i2s-pcm-audio",
		.codec_name = "ssm2602.0-001b",
		.init = bf5xx_ssm2602_dai_init,
		.dai_fmt = BF5XX_SSM2602_DAIFMT,
	},
	{
		.name = "ssm2602",
		.stream_name = "SSM2602",
		.cpu_dai_name = "bfin-i2s.1",
		.codec_dai_name = "ssm2602-hifi",
		.platform_name = "bfin-i2s-pcm-audio",
		.codec_name = "ssm2602.0-001b",
		.init = bf5xx_ssm2602_dai_init,
		.dai_fmt = BF5XX_SSM2602_DAIFMT,
	},
};

static struct snd_soc_card bf5xx_ssm2602 = {
	.name = "bfin-ssm2602",
	.owner = THIS_MODULE,
	.dai_link = &bf5xx_ssm2602_dai[CONFIG_SND_BF5XX_SPORT_NUM],
	.num_links = 1,
};

static struct platform_device *bf5xx_ssm2602_snd_device;

static int __init bf5xx_ssm2602_init(void)
{
	int ret;

	pr_debug("%s enter\n", __func__);
	bf5xx_ssm2602_snd_device = platform_device_alloc("soc-audio", -1);
	if (!bf5xx_ssm2602_snd_device)
		return -ENOMEM;

	platform_set_drvdata(bf5xx_ssm2602_snd_device, &bf5xx_ssm2602);
	ret = platform_device_add(bf5xx_ssm2602_snd_device);

	if (ret)
		platform_device_put(bf5xx_ssm2602_snd_device);

	return ret;
}

static void __exit bf5xx_ssm2602_exit(void)
{
	pr_debug("%s enter\n", __func__);
	platform_device_unregister(bf5xx_ssm2602_snd_device);
}

module_init(bf5xx_ssm2602_init);
module_exit(bf5xx_ssm2602_exit);

/* Module information */
MODULE_AUTHOR("Cliff Cai");
MODULE_DESCRIPTION("ALSA SoC SSM2602 BF527-EZKIT");
MODULE_LICENSE("GPL");
Commit	Line	Data
a7e7f54f CC	1	/*
	2	* File: sound/soc/blackfin/bf5xx-ssm2602.c
	3	* Author: Cliff Cai <Cliff.Cai@analog.com>
	4	*
	5	* Created: Tue June 06 2008
	6	* Description: board driver for SSM2602 sound chip
	7	*
	8	* Modified:
	9	* Copyright 2008 Analog Devices Inc.
	10	*
	11	* Bugs: Enter bugs at http://blackfin.uclinux.org/
	12	*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2 of the License, or
	16	* (at your option) any later version.
	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*
	23	* You should have received a copy of the GNU General Public License
	24	* along with this program; if not, see the file COPYING, or write
	25	* to the Free Software Foundation, Inc.,
	26	* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	27	*/
	28
	29	#include <linux/module.h>
	30	#include <linux/moduleparam.h>
	31	#include <linux/device.h>
	32
	33	#include <sound/core.h>
	34	#include <sound/pcm.h>
	35	#include <sound/soc.h>
a7e7f54f CC	36	#include <sound/pcm_params.h>
	37
	38	#include <asm/dma.h>
	39	#include <asm/portmux.h>
	40	#include <linux/gpio.h>
	41	#include "../codecs/ssm2602.h"
	42	#include "bf5xx-sport.h"
a7e7f54f	43
87506549	44	static struct snd_soc_card bf5xx_ssm2602;
a7e7f54f	45
d9ca8e76	46	static int bf5xx_ssm2602_dai_init(struct snd_soc_pcm_runtime *rtd)
a7e7f54f	47	{
a7e7f54f CC	48	/*
	49	* If you are using a crystal source which frequency is not 12MHz
	50	* then modify the below case statement with frequency of the crystal.
	51	*
	52	* If you are using the SPORT to generate clocking then this is
	53	* where to do it.
	54	*/
d9ca8e76	55	return snd_soc_dai_set_sysclk(rtd->codec_dai, SSM2602_SYSCLK, 12000000,
a7e7f54f	56	SND_SOC_CLOCK_IN);
a7e7f54f CC	57	}
a7e7f54f CC	58
980b0bc6 LPC	59	/* CODEC is master for BCLK and LRC in this configuration. */
	60	#define BF5XX_SSM2602_DAIFMT (SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \| \
	61	SND_SOC_DAIFMT_CBM_CFM)
	62
2c66cb99 BS	63	static struct snd_soc_dai_link bf5xx_ssm2602_dai[] = {
	64	{
	65	.name = "ssm2602",
	66	.stream_name = "SSM2602",
	67	.cpu_dai_name = "bfin-i2s.0",
	68	.codec_dai_name = "ssm2602-hifi",
	69	.platform_name = "bfin-i2s-pcm-audio",
	70	.codec_name = "ssm2602.0-001b",
d9ca8e76	71	.init = bf5xx_ssm2602_dai_init,
a3a53fe1	72	.dai_fmt = BF5XX_SSM2602_DAIFMT,
2c66cb99 BS	73	},
	74	{
	75	.name = "ssm2602",
	76	.stream_name = "SSM2602",
	77	.cpu_dai_name = "bfin-i2s.1",
	78	.codec_dai_name = "ssm2602-hifi",
	79	.platform_name = "bfin-i2s-pcm-audio",
	80	.codec_name = "ssm2602.0-001b",
d9ca8e76	81	.init = bf5xx_ssm2602_dai_init,
a3a53fe1	82	.dai_fmt = BF5XX_SSM2602_DAIFMT,
2c66cb99	83	},
a7e7f54f CC	84	};
a7e7f54f CC	85
87506549	86	static struct snd_soc_card bf5xx_ssm2602 = {
bfe4ee0a	87	.name = "bfin-ssm2602",
30e49530	88	.owner = THIS_MODULE,
2c66cb99	89	.dai_link = &bf5xx_ssm2602_dai[CONFIG_SND_BF5XX_SPORT_NUM],
a7e7f54f CC	90	.num_links = 1,
	91	};
	92
f274143f	93	static struct platform_device *bf5xx_ssm2602_snd_device;
a7e7f54f CC	94
	95	static int __init bf5xx_ssm2602_init(void)
	96	{
	97	int ret;
	98
	99	pr_debug("%s enter\n", __func__);
f274143f BS	100	bf5xx_ssm2602_snd_device = platform_device_alloc("soc-audio", -1);
f274143f BS	101	if (!bf5xx_ssm2602_snd_device)
a7e7f54f CC	102	return -ENOMEM;
a7e7f54f CC	103
f0fba2ad	104	platform_set_drvdata(bf5xx_ssm2602_snd_device, &bf5xx_ssm2602);
f274143f	105	ret = platform_device_add(bf5xx_ssm2602_snd_device);
a7e7f54f CC	106
a7e7f54f CC	107	if (ret)
f274143f	108	platform_device_put(bf5xx_ssm2602_snd_device);
a7e7f54f CC	109
	110	return ret;
	111	}
	112
	113	static void __exit bf5xx_ssm2602_exit(void)
	114	{
	115	pr_debug("%s enter\n", __func__);
f274143f	116	platform_device_unregister(bf5xx_ssm2602_snd_device);
a7e7f54f CC	117	}
	118
	119	module_init(bf5xx_ssm2602_init);
	120	module_exit(bf5xx_ssm2602_exit);
	121
	122	/* Module information */
	123	MODULE_AUTHOR("Cliff Cai");
	124	MODULE_DESCRIPTION("ALSA SoC SSM2602 BF527-EZKIT");
	125	MODULE_LICENSE("GPL");
	126