// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
 *
 * Based on sound/soc/imx/imx-pcm-dma-mx2.c
 */

#include <linux/device.h>
#include <linux/init.h>
#include <linux/module.h>

#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>

#include "mxs-pcm.h"

static const struct snd_pcm_hardware snd_mxs_hardware = {
        .info                   = SNDRV_PCM_INFO_MMAP |
                                  SNDRV_PCM_INFO_MMAP_VALID |
                                  SNDRV_PCM_INFO_PAUSE |
                                  SNDRV_PCM_INFO_RESUME |
                                  SNDRV_PCM_INFO_INTERLEAVED |
                                  SNDRV_PCM_INFO_HALF_DUPLEX,
        .period_bytes_min       = 32,
        .period_bytes_max       = 8192,
        .periods_min            = 1,
        .periods_max            = 52,
        .buffer_bytes_max       = 64 * 1024,
        .fifo_size              = 32,
};

static const struct snd_dmaengine_pcm_config mxs_dmaengine_pcm_config = {
        .pcm_hardware = &snd_mxs_hardware,
        .prealloc_buffer_size = 64 * 1024,
};

int mxs_pcm_platform_register(struct device *dev)
{
        return devm_snd_dmaengine_pcm_register(dev, &mxs_dmaengine_pcm_config,
                SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX);
}
EXPORT_SYMBOL_GPL(mxs_pcm_platform_register);

MODULE_DESCRIPTION("MXS ASoC PCM driver");
MODULE_LICENSE("GPL");