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 __ISYS_DMA_GLOBAL_H_INCLUDED__
17#define __ISYS_DMA_GLOBAL_H_INCLUDED__
18
19#include <type_support.h>
20
21#define HIVE_ISYS2401_DMA_IBUF_DDR_CONN	0
22#define HIVE_ISYS2401_DMA_IBUF_VMEM_CONN	1
23#define _DMA_V2_ZERO_EXTEND		0
24#define _DMA_V2_SIGN_EXTEND		1
25
26#define _DMA_ZERO_EXTEND     _DMA_V2_ZERO_EXTEND
27#define _DMA_SIGN_EXTEND     _DMA_V2_SIGN_EXTEND
28
29/********************************************************
30 *
31 * DMA Port.
32 *
33 * The DMA port definition for the input system
34 * 2401 DMA is the duplication of the DMA port
35 * definition for the CSS system DMA. It is duplicated
36 * here just as the temporal step before the device library
37 * is available. The device library is suppose to provide
38 * the capability of reusing the control interface of the
39 * same device prototypes. The refactor team will work on
40 * this, right?
41 *
42 ********************************************************/
43typedef struct isys2401_dma_port_cfg_s isys2401_dma_port_cfg_t;
44struct isys2401_dma_port_cfg_s {
45	u32 stride;
46	u32 elements;
47	u32 cropping;
48	u32 width;
49};
50
51/* end of DMA Port */
52
53/************************************************
54 *
55 * DMA Device.
56 *
57 * The DMA device definition for the input system
58 * 2401 DMA is the duplicattion of the DMA device
59 * definition for the CSS system DMA. It is duplicated
60 * here just as the temporal step before the device library
61 * is available. The device library is suppose to provide
62 * the capability of reusing the control interface of the
63 * same device prototypes. The refactor team will work on
64 * this, right?
65 *
66 ************************************************/
67typedef enum {
68	isys2401_dma_ibuf_to_ddr_connection	= HIVE_ISYS2401_DMA_IBUF_DDR_CONN,
69	isys2401_dma_ibuf_to_vmem_connection	= HIVE_ISYS2401_DMA_IBUF_VMEM_CONN
70} isys2401_dma_connection;
71
72typedef enum {
73	isys2401_dma_zero_extension = _DMA_ZERO_EXTEND,
74	isys2401_dma_sign_extension = _DMA_SIGN_EXTEND
75} isys2401_dma_extension;
76
77typedef struct isys2401_dma_cfg_s isys2401_dma_cfg_t;
78struct isys2401_dma_cfg_s {
79	isys2401_dma_channel	channel;
80	isys2401_dma_connection	connection;
81	isys2401_dma_extension	extension;
82	u32		height;
83};
84
85/* end of DMA Device */
86
87/* isys2401_dma_channel limits per DMA ID */
88extern const isys2401_dma_channel
89N_ISYS2401_DMA_CHANNEL_PROCS[N_ISYS2401_DMA_ID];
90
91#endif /* __ISYS_DMA_GLOBAL_H_INCLUDED__ */
92