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/*
* sound/soc/sprd/dai/vaudio/vaudio.c
*
* SpreadTrum Vaudio for the dsp stream.
*
* Copyright (C) 2012 SpreadTrum Ltd.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*/
#include "sprd-asoc-debug.h"
#define pr_fmt(fmt) pr_sprd_fmt(" DSP ") fmt
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/sysfs.h>
#include <linux/stat.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/pcm_params.h>
#include <sound/tlv.h>
#include "sprd-asoc-common.h"
#include "vaudio.h"
static int sprd_vaudio_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_card *card = dai->card;
int i;
sp_asoc_pr_dbg("%s\n", __func__);
kfree(snd_soc_dai_get_dma_data(dai, substream));
snd_soc_dai_set_dma_data(dai, substream, NULL);
for (i = 0; i < card->num_rtd; i++) {
card->rtd[i].dai_link->ignore_suspend = 1;
}
return 0;
}
static void sprd_vaudio_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_card *card = dai->card;
int i;
sp_asoc_pr_dbg("%s\n", __func__);
for (i = 0; i < card->num_rtd; i++) {
card->rtd[i].dai_link->ignore_suspend = 0;
}
}
static struct snd_soc_dai_ops sprd_vaudio_dai_ops = {
.startup = sprd_vaudio_startup,
.shutdown = sprd_vaudio_shutdown,
};
struct snd_soc_dai_driver sprd_vaudio_dai[] = {
{
.id = VAUDIO_MAGIC_ID,
.name = "vaudio",
.playback = {
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
.capture = {
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
.ops = &sprd_vaudio_dai_ops,
},
{
.id = VAUDIO_MAGIC_ID + 1,
.name = "vaudio-ad23",
.capture = {
.channels_min = 1,
.channels_max = 2, /*ad23 */
.rates = SNDRV_PCM_RATE_CONTINUOUS,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
.ops = &sprd_vaudio_dai_ops,
},
};
static const struct snd_soc_component_driver sprd_vaudio_component = {
.name = "vaudio",
};
static int sprd_vaudio_drv_probe(struct platform_device *pdev)
{
int ret;
sp_asoc_pr_dbg("%s\n", __func__);
ret =
snd_soc_register_component(&pdev->dev, &sprd_vaudio_component,
sprd_vaudio_dai,
ARRAY_SIZE(sprd_vaudio_dai));
sp_asoc_pr_dbg("return %i\n", ret);
return ret;
}
static int sprd_vaudio_drv_remove(struct platform_device *pdev)
{
snd_soc_unregister_component(&pdev->dev);
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id vaudio_of_match[] = {
{.compatible = "sprd,vaudio",},
{},
};
MODULE_DEVICE_TABLE(of, vaudio_of_match);
#endif
static struct platform_driver sprd_vaudio_driver = {
.driver = {
.name = "vaudio",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(vaudio_of_match),
},
.probe = sprd_vaudio_drv_probe,
.remove = sprd_vaudio_drv_remove,
};
module_platform_driver(sprd_vaudio_driver);
MODULE_DESCRIPTION("SPRD ASoC Vaudio CUP-DAI driver for the DSP");
MODULE_AUTHOR("Ken Kuang <ken.kuang@spreadtrum.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("cpu-dai:sprd-vaudio");
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