linux/drivers/dma/dw/dw.c

// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2007-2008 Atmel Corporation
// Copyright (C) 2010-2011 ST Microelectronics
// Copyright (C) 2013,2018 Intel Corporation

#include <linux/bitops.h>
#include <linux/dmaengine.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/types.h>

#include "internal.h"

static void dw_dma_initialize_chan(struct dw_dma_chan *dwc)
{ … }

static void dw_dma_suspend_chan(struct dw_dma_chan *dwc, bool drain)
{ … }

static void dw_dma_resume_chan(struct dw_dma_chan *dwc, bool drain)
{ … }

static u32 dw_dma_bytes2block(struct dw_dma_chan *dwc,
			      size_t bytes, unsigned int width, size_t *len)
{ … }

static size_t dw_dma_block2bytes(struct dw_dma_chan *dwc, u32 block, u32 width)
{ … }

static u32 dw_dma_prepare_ctllo(struct dw_dma_chan *dwc)
{ … }

static void dw_dma_encode_maxburst(struct dw_dma_chan *dwc, u32 *maxburst)
{ … }

static void dw_dma_set_device_name(struct dw_dma *dw, int id)
{ … }

static void dw_dma_disable(struct dw_dma *dw)
{ … }

static void dw_dma_enable(struct dw_dma *dw)
{ … }

int dw_dma_probe(struct dw_dma_chip *chip)
{ … }
EXPORT_SYMBOL_GPL(…);

int dw_dma_remove(struct dw_dma_chip *chip)
{ … }
EXPORT_SYMBOL_GPL(…);