// SPDX-License-Identifier: GPL-2.0-only
/*
 * linux/sound/arm/ep93xx-pcm.c - EP93xx ALSA PCM interface
 *
 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
 * Copyright (C) 2006 Applied Data Systems
 *
 * Rewritten for the SoC audio subsystem (Based on PXA2xx code):
 *   Copyright (c) 2008 Ryan Mallon
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dmaengine.h>

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

#include "ep93xx-pcm.h"

static const struct snd_pcm_hardware ep93xx_pcm_hardware = {
        .info                   = (SNDRV_PCM_INFO_MMAP          |
                                   SNDRV_PCM_INFO_MMAP_VALID    |
                                   SNDRV_PCM_INFO_INTERLEAVED   |
                                   SNDRV_PCM_INFO_BLOCK_TRANSFER),
        .buffer_bytes_max       = 131072,
        .period_bytes_min       = 32,
        .period_bytes_max       = 32768,
        .periods_min            = 1,
        .periods_max            = 32,
        .fifo_size              = 32,
};

static const struct snd_dmaengine_pcm_config ep93xx_dmaengine_pcm_config = {
        .pcm_hardware = &ep93xx_pcm_hardware,
        .prealloc_buffer_size = 131072,
};

int devm_ep93xx_pcm_platform_register(struct device *dev)
{
        return devm_snd_dmaengine_pcm_register(dev,
                &ep93xx_dmaengine_pcm_config, 0);
}
EXPORT_SYMBOL_GPL(devm_ep93xx_pcm_platform_register);

MODULE_AUTHOR("Ryan Mallon");
MODULE_DESCRIPTION("EP93xx ALSA PCM interface");
MODULE_LICENSE("GPL");