summaryrefslogtreecommitdiff
path: root/drivers/media/platform/omap3isp/omap3isp.h
blob: 9fb4d5bce00447e3723c9ce55b75eb3ba70ce835 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/*
 * omap3isp.h
 *
 * TI OMAP3 ISP - Bus Configuration
 *
 * Copyright (C) 2011 Nokia Corporation
 *
 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 *	     Sakari Ailus <sakari.ailus@iki.fi>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */

#ifndef __OMAP3ISP_H__
#define __OMAP3ISP_H__

enum isp_interface_type {
	ISP_INTERFACE_PARALLEL,
	ISP_INTERFACE_CSI2A_PHY2,
	ISP_INTERFACE_CCP2B_PHY1,
	ISP_INTERFACE_CCP2B_PHY2,
	ISP_INTERFACE_CSI2C_PHY1,
};

/**
 * struct isp_parallel_cfg - Parallel interface configuration
 * @data_lane_shift: Data lane shifter
 *		0 - CAMEXT[13:0] -> CAM[13:0]
 *		2 - CAMEXT[13:2] -> CAM[11:0]
 *		4 - CAMEXT[13:4] -> CAM[9:0]
 *		6 - CAMEXT[13:6] -> CAM[7:0]
 * @clk_pol: Pixel clock polarity
 *		0 - Sample on rising edge, 1 - Sample on falling edge
 * @hs_pol: Horizontal synchronization polarity
 *		0 - Active high, 1 - Active low
 * @vs_pol: Vertical synchronization polarity
 *		0 - Active high, 1 - Active low
 * @fld_pol: Field signal polarity
 *		0 - Positive, 1 - Negative
 * @data_pol: Data polarity
 *		0 - Normal, 1 - One's complement
 * @bt656: Data contain BT.656 embedded synchronization
 */
struct isp_parallel_cfg {
	unsigned int data_lane_shift:3;
	unsigned int clk_pol:1;
	unsigned int hs_pol:1;
	unsigned int vs_pol:1;
	unsigned int fld_pol:1;
	unsigned int data_pol:1;
	unsigned int bt656:1;
};

enum {
	ISP_CCP2_PHY_DATA_CLOCK = 0,
	ISP_CCP2_PHY_DATA_STROBE = 1,
};

enum {
	ISP_CCP2_MODE_MIPI = 0,
	ISP_CCP2_MODE_CCP2 = 1,
};

/**
 * struct isp_csiphy_lane: CCP2/CSI2 lane position and polarity
 * @pos: position of the lane
 * @pol: polarity of the lane
 */
struct isp_csiphy_lane {
	u8 pos;
	u8 pol;
};

#define ISP_CSIPHY1_NUM_DATA_LANES	1
#define ISP_CSIPHY2_NUM_DATA_LANES	2

/**
 * struct isp_csiphy_lanes_cfg - CCP2/CSI2 lane configuration
 * @data: Configuration of one or two data lanes
 * @clk: Clock lane configuration
 */
struct isp_csiphy_lanes_cfg {
	struct isp_csiphy_lane data[ISP_CSIPHY2_NUM_DATA_LANES];
	struct isp_csiphy_lane clk;
};

/**
 * struct isp_ccp2_cfg - CCP2 interface configuration
 * @strobe_clk_pol: Strobe/clock polarity
 *		0 - Non Inverted, 1 - Inverted
 * @crc: Enable the cyclic redundancy check
 * @ccp2_mode: Enable CCP2 compatibility mode
 *		ISP_CCP2_MODE_MIPI - MIPI-CSI1 mode
 *		ISP_CCP2_MODE_CCP2 - CCP2 mode
 * @phy_layer: Physical layer selection
 *		ISP_CCP2_PHY_DATA_CLOCK - Data/clock physical layer
 *		ISP_CCP2_PHY_DATA_STROBE - Data/strobe physical layer
 * @vpclk_div: Video port output clock control
 */
struct isp_ccp2_cfg {
	unsigned int strobe_clk_pol:1;
	unsigned int crc:1;
	unsigned int ccp2_mode:1;
	unsigned int phy_layer:1;
	unsigned int vpclk_div:2;
	unsigned int vp_clk_pol:1;
	struct isp_csiphy_lanes_cfg lanecfg;
};

/**
 * struct isp_csi2_cfg - CSI2 interface configuration
 * @crc: Enable the cyclic redundancy check
 * @lanecfg: CSI-2 lane configuration
 * @num_data_lanes: The number of data lanes in use
 */
struct isp_csi2_cfg {
	unsigned crc:1;
	struct isp_csiphy_lanes_cfg lanecfg;
	u8 num_data_lanes;
};

struct isp_bus_cfg {
	enum isp_interface_type interface;
	union {
		struct isp_parallel_cfg parallel;
		struct isp_ccp2_cfg ccp2;
		struct isp_csi2_cfg csi2;
	} bus; /* gcc < 4.6.0 chokes on anonymous union initializers */
};

#endif	/* __OMAP3ISP_H__ */