1 /*
2  * omap3isp.h
3  *
4  * TI OMAP3 ISP - Platform data
5  *
6  * Copyright (C) 2011 Nokia Corporation
7  *
8  * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
9  *	     Sakari Ailus <sakari.ailus@iki.fi>
10  *
11  * This program is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License version 2 as
13  * published by the Free Software Foundation.
14  *
15  * This program is distributed in the hope that it will be useful, but
16  * WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18  * General Public License for more details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with this program; if not, write to the Free Software
22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
23  * 02110-1301 USA
24  */
25 
26 #ifndef __MEDIA_OMAP3ISP_H__
27 #define __MEDIA_OMAP3ISP_H__
28 
29 struct i2c_board_info;
30 struct isp_device;
31 
32 enum isp_interface_type {
33 	ISP_INTERFACE_PARALLEL,
34 	ISP_INTERFACE_CSI2A_PHY2,
35 	ISP_INTERFACE_CCP2B_PHY1,
36 	ISP_INTERFACE_CCP2B_PHY2,
37 	ISP_INTERFACE_CSI2C_PHY1,
38 };
39 
40 enum {
41 	ISP_BRIDGE_DISABLE = 0,
42 	ISP_BRIDGE_LITTLE_ENDIAN = 2,
43 	ISP_BRIDGE_BIG_ENDIAN = 3,
44 };
45 
46 enum {
47 	ISP_LANE_SHIFT_0 = 0,
48 	ISP_LANE_SHIFT_2 = 1,
49 	ISP_LANE_SHIFT_4 = 2,
50 	ISP_LANE_SHIFT_6 = 3,
51 };
52 
53 /**
54  * struct isp_parallel_platform_data - Parallel interface platform data
55  * @data_lane_shift: Data lane shifter
56  *		ISP_LANE_SHIFT_0 - CAMEXT[13:0] -> CAM[13:0]
57  *		ISP_LANE_SHIFT_2 - CAMEXT[13:2] -> CAM[11:0]
58  *		ISP_LANE_SHIFT_4 - CAMEXT[13:4] -> CAM[9:0]
59  *		ISP_LANE_SHIFT_6 - CAMEXT[13:6] -> CAM[7:0]
60  * @clk_pol: Pixel clock polarity
61  *		0 - Sample on rising edge, 1 - Sample on falling edge
62  * @hs_pol: Horizontal synchronization polarity
63  *		0 - Active high, 1 - Active low
64  * @vs_pol: Vertical synchronization polarity
65  *		0 - Active high, 1 - Active low
66  * @bridge: CCDC Bridge input control
67  *		ISP_BRIDGE_DISABLE - Disable
68  *		ISP_BRIDGE_LITTLE_ENDIAN - Little endian
69  *		ISP_BRIDGE_BIG_ENDIAN - Big endian
70  */
71 struct isp_parallel_platform_data {
72 	unsigned int data_lane_shift:2;
73 	unsigned int clk_pol:1;
74 	unsigned int hs_pol:1;
75 	unsigned int vs_pol:1;
76 	unsigned int bridge:2;
77 };
78 
79 enum {
80 	ISP_CCP2_PHY_DATA_CLOCK = 0,
81 	ISP_CCP2_PHY_DATA_STROBE = 1,
82 };
83 
84 enum {
85 	ISP_CCP2_MODE_MIPI = 0,
86 	ISP_CCP2_MODE_CCP2 = 1,
87 };
88 
89 /**
90  * struct isp_ccp2_platform_data - CCP2 interface platform data
91  * @strobe_clk_pol: Strobe/clock polarity
92  *		0 - Non Inverted, 1 - Inverted
93  * @crc: Enable the cyclic redundancy check
94  * @ccp2_mode: Enable CCP2 compatibility mode
95  *		ISP_CCP2_MODE_MIPI - MIPI-CSI1 mode
96  *		ISP_CCP2_MODE_CCP2 - CCP2 mode
97  * @phy_layer: Physical layer selection
98  *		ISP_CCP2_PHY_DATA_CLOCK - Data/clock physical layer
99  *		ISP_CCP2_PHY_DATA_STROBE - Data/strobe physical layer
100  * @vpclk_div: Video port output clock control
101  */
102 struct isp_ccp2_platform_data {
103 	unsigned int strobe_clk_pol:1;
104 	unsigned int crc:1;
105 	unsigned int ccp2_mode:1;
106 	unsigned int phy_layer:1;
107 	unsigned int vpclk_div:2;
108 };
109 
110 /**
111  * struct isp_csi2_platform_data - CSI2 interface platform data
112  * @crc: Enable the cyclic redundancy check
113  * @vpclk_div: Video port output clock control
114  */
115 struct isp_csi2_platform_data {
116 	unsigned crc:1;
117 	unsigned vpclk_div:2;
118 };
119 
120 struct isp_subdev_i2c_board_info {
121 	struct i2c_board_info *board_info;
122 	int i2c_adapter_id;
123 };
124 
125 struct isp_v4l2_subdevs_group {
126 	struct isp_subdev_i2c_board_info *subdevs;
127 	enum isp_interface_type interface;
128 	union {
129 		struct isp_parallel_platform_data parallel;
130 		struct isp_ccp2_platform_data ccp2;
131 		struct isp_csi2_platform_data csi2;
132 	} bus; /* gcc < 4.6.0 chokes on anonymous union initializers */
133 };
134 
135 struct isp_platform_data {
136 	struct isp_v4l2_subdevs_group *subdevs;
137 	void (*set_constraints)(struct isp_device *isp, bool enable);
138 };
139 
140 #endif	/* __MEDIA_OMAP3ISP_H__ */
141