127 lines
3.5 KiB
C
127 lines
3.5 KiB
C
/*
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* File: sound/soc/blackfin/bf5xx-ssm2602.c
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* Author: Cliff Cai <Cliff.Cai@analog.com>
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*
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* Created: Tue June 06 2008
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* Description: board driver for SSM2602 sound chip
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*
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* Modified:
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* Copyright 2008 Analog Devices Inc.
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/pcm_params.h>
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#include <asm/dma.h>
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#include <asm/portmux.h>
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#include <linux/gpio.h>
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#include "../codecs/ssm2602.h"
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#include "bf5xx-sport.h"
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static struct snd_soc_card bf5xx_ssm2602;
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static int bf5xx_ssm2602_dai_init(struct snd_soc_pcm_runtime *rtd)
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{
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/*
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* If you are using a crystal source which frequency is not 12MHz
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* then modify the below case statement with frequency of the crystal.
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*
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* If you are using the SPORT to generate clocking then this is
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* where to do it.
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*/
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return snd_soc_dai_set_sysclk(rtd->codec_dai, SSM2602_SYSCLK, 12000000,
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SND_SOC_CLOCK_IN);
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}
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/* CODEC is master for BCLK and LRC in this configuration. */
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#define BF5XX_SSM2602_DAIFMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \
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SND_SOC_DAIFMT_CBM_CFM)
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static struct snd_soc_dai_link bf5xx_ssm2602_dai[] = {
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{
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.name = "ssm2602",
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.stream_name = "SSM2602",
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.cpu_dai_name = "bfin-i2s.0",
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.codec_dai_name = "ssm2602-hifi",
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.platform_name = "bfin-i2s-pcm-audio",
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.codec_name = "ssm2602.0-001b",
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.init = bf5xx_ssm2602_dai_init,
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.dai_fmt = BF5XX_SSM2602_DAIFMT,
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},
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{
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.name = "ssm2602",
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.stream_name = "SSM2602",
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.cpu_dai_name = "bfin-i2s.1",
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.codec_dai_name = "ssm2602-hifi",
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.platform_name = "bfin-i2s-pcm-audio",
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.codec_name = "ssm2602.0-001b",
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.init = bf5xx_ssm2602_dai_init,
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.dai_fmt = BF5XX_SSM2602_DAIFMT,
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},
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};
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static struct snd_soc_card bf5xx_ssm2602 = {
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.name = "bfin-ssm2602",
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.owner = THIS_MODULE,
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.dai_link = &bf5xx_ssm2602_dai[CONFIG_SND_BF5XX_SPORT_NUM],
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.num_links = 1,
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};
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static struct platform_device *bf5xx_ssm2602_snd_device;
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static int __init bf5xx_ssm2602_init(void)
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{
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int ret;
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pr_debug("%s enter\n", __func__);
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bf5xx_ssm2602_snd_device = platform_device_alloc("soc-audio", -1);
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if (!bf5xx_ssm2602_snd_device)
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return -ENOMEM;
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platform_set_drvdata(bf5xx_ssm2602_snd_device, &bf5xx_ssm2602);
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ret = platform_device_add(bf5xx_ssm2602_snd_device);
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if (ret)
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platform_device_put(bf5xx_ssm2602_snd_device);
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return ret;
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}
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static void __exit bf5xx_ssm2602_exit(void)
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{
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pr_debug("%s enter\n", __func__);
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platform_device_unregister(bf5xx_ssm2602_snd_device);
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}
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module_init(bf5xx_ssm2602_init);
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module_exit(bf5xx_ssm2602_exit);
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/* Module information */
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MODULE_AUTHOR("Cliff Cai");
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MODULE_DESCRIPTION("ALSA SoC SSM2602 BF527-EZKIT");
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MODULE_LICENSE("GPL");
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