125 lines
3.1 KiB
C
125 lines
3.1 KiB
C
/*
|
|
* File: sound/soc/blackfin/bf5xx-ad1836.c
|
|
* Author: Barry Song <Barry.Song@analog.com>
|
|
*
|
|
* Created: Aug 4 2009
|
|
* Description: Board driver for ad1836 sound chip
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#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/blackfin.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/dma.h>
|
|
#include <asm/portmux.h>
|
|
|
|
#include "../codecs/ad1836.h"
|
|
|
|
#include "bf5xx-tdm-pcm.h"
|
|
#include "bf5xx-tdm.h"
|
|
|
|
static struct snd_soc_card bf5xx_ad1836;
|
|
|
|
static int bf5xx_ad1836_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 *cpu_dai = rtd->cpu_dai;
|
|
unsigned int channel_map[] = {0, 4, 1, 5, 2, 6, 3, 7};
|
|
int ret = 0;
|
|
|
|
/* set cpu DAI channel mapping */
|
|
ret = snd_soc_dai_set_channel_map(cpu_dai, ARRAY_SIZE(channel_map),
|
|
channel_map, ARRAY_SIZE(channel_map), channel_map);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_ops bf5xx_ad1836_ops = {
|
|
.hw_params = bf5xx_ad1836_hw_params,
|
|
};
|
|
|
|
#define BF5XX_AD1836_DAIFMT (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_IF | \
|
|
SND_SOC_DAIFMT_CBM_CFM)
|
|
|
|
static struct snd_soc_dai_link bf5xx_ad1836_dai = {
|
|
.name = "ad1836",
|
|
.stream_name = "AD1836",
|
|
.codec_dai_name = "ad1836-hifi",
|
|
.platform_name = "bfin-tdm-pcm-audio",
|
|
.ops = &bf5xx_ad1836_ops,
|
|
.dai_fmt = BF5XX_AD1836_DAIFMT,
|
|
};
|
|
|
|
static struct snd_soc_card bf5xx_ad1836 = {
|
|
.name = "bfin-ad1836",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = &bf5xx_ad1836_dai,
|
|
.num_links = 1,
|
|
};
|
|
|
|
static int bf5xx_ad1836_driver_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = &bf5xx_ad1836;
|
|
const char **link_name;
|
|
int ret;
|
|
|
|
link_name = pdev->dev.platform_data;
|
|
if (!link_name) {
|
|
dev_err(&pdev->dev, "No platform data supplied\n");
|
|
return -EINVAL;
|
|
}
|
|
bf5xx_ad1836_dai.cpu_dai_name = link_name[0];
|
|
bf5xx_ad1836_dai.codec_name = link_name[1];
|
|
|
|
card->dev = &pdev->dev;
|
|
platform_set_drvdata(pdev, card);
|
|
|
|
ret = snd_soc_register_card(card);
|
|
if (ret)
|
|
dev_err(&pdev->dev, "Failed to register card\n");
|
|
return ret;
|
|
}
|
|
|
|
static int bf5xx_ad1836_driver_remove(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = platform_get_drvdata(pdev);
|
|
|
|
snd_soc_unregister_card(card);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver bf5xx_ad1836_driver = {
|
|
.driver = {
|
|
.name = "bfin-snd-ad1836",
|
|
.owner = THIS_MODULE,
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
.probe = bf5xx_ad1836_driver_probe,
|
|
.remove = bf5xx_ad1836_driver_remove,
|
|
};
|
|
module_platform_driver(bf5xx_ad1836_driver);
|
|
|
|
/* Module information */
|
|
MODULE_AUTHOR("Barry Song");
|
|
MODULE_DESCRIPTION("ALSA SoC AD1836 board driver");
|
|
MODULE_LICENSE("GPL");
|
|
|