linux/drivers/media/pci/mgb4/mgb4_dma.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2021-2022 Digiteq Automotive
 *     author: Martin Tuma <[email protected]>
 *
 * This module handles the DMA transfers. A standard dmaengine API as provided
 * by the XDMA module is used.
 */

#include <linux/pci.h>
#include <linux/dma-direction.h>
#include "mgb4_core.h"
#include "mgb4_dma.h"

static void chan_irq(void *param)
{ … }

int mgb4_dma_transfer(struct mgb4_dev *mgbdev, u32 channel, bool write,
		      u64 paddr, struct sg_table *sgt)
{ … }

int mgb4_dma_channel_init(struct mgb4_dev *mgbdev)
{ … }

void mgb4_dma_channel_free(struct mgb4_dev *mgbdev)
{ … }