1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Support for Intel Camera Imaging ISP subsystem.
4 * Copyright (c) 2015, Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13 * more details.
14 */
15
16#ifndef __DMA_PUBLIC_H_INCLUDED__
17#define __DMA_PUBLIC_H_INCLUDED__
18
19#include "system_local.h"
20
21/*! Write to a control register of DMA[ID]
22
23 \param	ID[in]				DMA identifier
24 \param	reg[in]				register index
25 \param value[in]			The data to be written
26
27 \return none, DMA[ID].ctrl[reg] = value
28 */
29STORAGE_CLASS_DMA_H void dma_reg_store(
30    const dma_ID_t		ID,
31    const unsigned int	reg,
32    const hrt_data		value);
33
34/*! Read from a control register of DMA[ID]
35
36 \param	ID[in]				DMA identifier
37 \param	reg[in]				register index
38 \param value[in]			The data to be written
39
40 \return DMA[ID].ctrl[reg]
41 */
42STORAGE_CLASS_DMA_H hrt_data dma_reg_load(
43    const dma_ID_t		ID,
44    const unsigned int	reg);
45
46/*! Set maximum burst size of DMA[ID]
47
48 \param ID[in]				DMA identifier
49 \param conn[in]			Connection to set max burst size for
50 \param max_burst_size[in]		Maximum burst size in words
51
52 \return none
53*/
54void
55dma_set_max_burst_size(
56    dma_ID_t		ID,
57    dma_connection		conn,
58    uint32_t		max_burst_size);
59
60#endif /* __DMA_PUBLIC_H_INCLUDED__ */
61