linux/drivers/media/pci/pt3/pt3_dma.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Earthsoft PT3 driver
 *
 * Copyright (C) 2014 Akihiro Tsukada <[email protected]>
 */
#include <linux/dma-mapping.h>
#include <linux/kernel.h>
#include <linux/pci.h>

#include "pt3.h"

#define PT3_ACCESS_UNIT …
#define PT3_BUF_CANARY …

static u32 get_dma_base(int idx)
{ … }

int pt3_stop_dma(struct pt3_adapter *adap)
{ … }

int pt3_start_dma(struct pt3_adapter *adap)
{ … }


static u8 *next_unit(struct pt3_adapter *adap, int *idx, int *ofs)
{ … }

int pt3_proc_dma(struct pt3_adapter *adap)
{ … }

void pt3_init_dmabuf(struct pt3_adapter *adap)
{ … }

void pt3_free_dmabuf(struct pt3_adapter *adap)
{ … }


int pt3_alloc_dmabuf(struct pt3_adapter *adap)
{ … }