126 lines
3.5 KiB
C
126 lines
3.5 KiB
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");
|
|
|