1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Support for Intel Camera Imaging ISP subsystem.
4  * Copyright (c) 2015, Intel Corporation.
5  */
6 
7 #ifndef __ISYS_DMA_GLOBAL_H_INCLUDED__
8 #define __ISYS_DMA_GLOBAL_H_INCLUDED__
9 
10 #include <type_support.h>
11 
12 #define HIVE_ISYS2401_DMA_IBUF_DDR_CONN	0
13 #define HIVE_ISYS2401_DMA_IBUF_VMEM_CONN	1
14 #define _DMA_V2_ZERO_EXTEND		0
15 #define _DMA_V2_SIGN_EXTEND		1
16 
17 #define _DMA_ZERO_EXTEND     _DMA_V2_ZERO_EXTEND
18 #define _DMA_SIGN_EXTEND     _DMA_V2_SIGN_EXTEND
19 
20 /********************************************************
21  *
22  * DMA Port.
23  *
24  * The DMA port definition for the input system
25  * 2401 DMA is the duplication of the DMA port
26  * definition for the CSS system DMA. It is duplicated
27  * here just as the temporal step before the device library
28  * is available. The device library is suppose to provide
29  * the capability of reusing the control interface of the
30  * same device prototypes. The refactor team will work on
31  * this, right?
32  *
33  ********************************************************/
34 typedef struct isys2401_dma_port_cfg_s isys2401_dma_port_cfg_t;
35 struct isys2401_dma_port_cfg_s {
36 	u32 stride;
37 	u32 elements;
38 	u32 cropping;
39 	u32 width;
40 };
41 
42 /* end of DMA Port */
43 
44 /************************************************
45  *
46  * DMA Device.
47  *
48  * The DMA device definition for the input system
49  * 2401 DMA is the duplicattion of the DMA device
50  * definition for the CSS system DMA. It is duplicated
51  * here just as the temporal step before the device library
52  * is available. The device library is suppose to provide
53  * the capability of reusing the control interface of the
54  * same device prototypes. The refactor team will work on
55  * this, right?
56  *
57  ************************************************/
58 typedef enum {
59 	isys2401_dma_ibuf_to_ddr_connection	= HIVE_ISYS2401_DMA_IBUF_DDR_CONN,
60 	isys2401_dma_ibuf_to_vmem_connection	= HIVE_ISYS2401_DMA_IBUF_VMEM_CONN
61 } isys2401_dma_connection;
62 
63 typedef enum {
64 	isys2401_dma_zero_extension = _DMA_ZERO_EXTEND,
65 	isys2401_dma_sign_extension = _DMA_SIGN_EXTEND
66 } isys2401_dma_extension;
67 
68 typedef struct isys2401_dma_cfg_s isys2401_dma_cfg_t;
69 struct isys2401_dma_cfg_s {
70 	isys2401_dma_channel	channel;
71 	isys2401_dma_connection	connection;
72 	isys2401_dma_extension	extension;
73 	u32		height;
74 };
75 
76 /* end of DMA Device */
77 
78 /* isys2401_dma_channel limits per DMA ID */
79 extern const isys2401_dma_channel
80 N_ISYS2401_DMA_CHANNEL_PROCS[N_ISYS2401_DMA_ID];
81 
82 #endif /* __ISYS_DMA_GLOBAL_H_INCLUDED__ */
83