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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com
* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
*/
#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>
#include "udma-pcm.h"
static const struct snd_pcm_hardware udma_pcm_hardware = {
.info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
SNDRV_PCM_INFO_INTERLEAVED,
.buffer_bytes_max = SIZE_MAX,
.period_bytes_min = 32,
.period_bytes_max = SZ_64K,
.periods_min = 2,
.periods_max = UINT_MAX,
};
static const struct snd_dmaengine_pcm_config udma_dmaengine_pcm_config = {
.pcm_hardware = &udma_pcm_hardware,
.prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
};
int udma_pcm_platform_register(struct device *dev)
{
return devm_snd_dmaengine_pcm_register(dev, &udma_dmaengine_pcm_config,
0);
}
EXPORT_SYMBOL_GPL(udma_pcm_platform_register);
MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
MODULE_DESCRIPTION("UDMA PCM ASoC platform driver");
MODULE_LICENSE("GPL v2");
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