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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
29struct i2c_board_info;
30struct isp_device;
31
32#define ISP_XCLK_NONE 0
33#define ISP_XCLK_A 1
34#define ISP_XCLK_B 2
35
36enum isp_interface_type {
37 ISP_INTERFACE_PARALLEL,
38 ISP_INTERFACE_CSI2A_PHY2,
39 ISP_INTERFACE_CCP2B_PHY1,
40 ISP_INTERFACE_CCP2B_PHY2,
41 ISP_INTERFACE_CSI2C_PHY1,
42};
43
44enum {
45 ISP_LANE_SHIFT_0 = 0,
46 ISP_LANE_SHIFT_2 = 1,
47 ISP_LANE_SHIFT_4 = 2,
48 ISP_LANE_SHIFT_6 = 3,
49};
50
51/**
52 * struct isp_parallel_platform_data - Parallel interface platform data
53 * @data_lane_shift: Data lane shifter
54 * ISP_LANE_SHIFT_0 - CAMEXT[13:0] -> CAM[13:0]
55 * ISP_LANE_SHIFT_2 - CAMEXT[13:2] -> CAM[11:0]
56 * ISP_LANE_SHIFT_4 - CAMEXT[13:4] -> CAM[9:0]
57 * ISP_LANE_SHIFT_6 - CAMEXT[13:6] -> CAM[7:0]
58 * @clk_pol: Pixel clock polarity
59 * 0 - Sample on rising edge, 1 - Sample on falling edge
60 * @hs_pol: Horizontal synchronization polarity
61 * 0 - Active high, 1 - Active low
62 * @vs_pol: Vertical synchronization polarity
63 * 0 - Active high, 1 - Active low
64 * @data_pol: Data polarity
65 * 0 - Normal, 1 - One's complement
66 */
67struct isp_parallel_platform_data {
68 unsigned int data_lane_shift:2;
69 unsigned int clk_pol:1;
70 unsigned int hs_pol:1;
71 unsigned int vs_pol:1;
72 unsigned int data_pol:1;
73};
74
75enum {
76 ISP_CCP2_PHY_DATA_CLOCK = 0,
77 ISP_CCP2_PHY_DATA_STROBE = 1,
78};
79
80enum {
81 ISP_CCP2_MODE_MIPI = 0,
82 ISP_CCP2_MODE_CCP2 = 1,
83};
84
85/**
86 * struct isp_csiphy_lane: CCP2/CSI2 lane position and polarity
87 * @pos: position of the lane
88 * @pol: polarity of the lane
89 */
90struct isp_csiphy_lane {
91 u8 pos;
92 u8 pol;
93};
94
95#define ISP_CSIPHY1_NUM_DATA_LANES 1
96#define ISP_CSIPHY2_NUM_DATA_LANES 2
97
98/**
99 * struct isp_csiphy_lanes_cfg - CCP2/CSI2 lane configuration
100 * @data: Configuration of one or two data lanes
101 * @clk: Clock lane configuration
102 */
103struct isp_csiphy_lanes_cfg {
104 struct isp_csiphy_lane data[ISP_CSIPHY2_NUM_DATA_LANES];
105 struct isp_csiphy_lane clk;
106};
107
108/**
109 * struct isp_ccp2_platform_data - CCP2 interface platform data
110 * @strobe_clk_pol: Strobe/clock polarity
111 * 0 - Non Inverted, 1 - Inverted
112 * @crc: Enable the cyclic redundancy check
113 * @ccp2_mode: Enable CCP2 compatibility mode
114 * ISP_CCP2_MODE_MIPI - MIPI-CSI1 mode
115 * ISP_CCP2_MODE_CCP2 - CCP2 mode
116 * @phy_layer: Physical layer selection
117 * ISP_CCP2_PHY_DATA_CLOCK - Data/clock physical layer
118 * ISP_CCP2_PHY_DATA_STROBE - Data/strobe physical layer
119 * @vpclk_div: Video port output clock control
120 */
121struct isp_ccp2_platform_data {
122 unsigned int strobe_clk_pol:1;
123 unsigned int crc:1;
124 unsigned int ccp2_mode:1;
125 unsigned int phy_layer:1;
126 unsigned int vpclk_div:2;
127 struct isp_csiphy_lanes_cfg lanecfg;
128};
129
130/**
131 * struct isp_csi2_platform_data - CSI2 interface platform data
132 * @crc: Enable the cyclic redundancy check
133 * @vpclk_div: Video port output clock control
134 */
135struct isp_csi2_platform_data {
136 unsigned crc:1;
137 unsigned vpclk_div:2;
138 struct isp_csiphy_lanes_cfg lanecfg;
139};
140
141struct isp_subdev_i2c_board_info {
142 struct i2c_board_info *board_info;
143 int i2c_adapter_id;
144};
145
146struct isp_v4l2_subdevs_group {
147 struct isp_subdev_i2c_board_info *subdevs;
148 enum isp_interface_type interface;
149 union {
150 struct isp_parallel_platform_data parallel;
151 struct isp_ccp2_platform_data ccp2;
152 struct isp_csi2_platform_data csi2;
153 } bus; /* gcc < 4.6.0 chokes on anonymous union initializers */
154};
155
156struct isp_platform_data {
157 struct isp_v4l2_subdevs_group *subdevs;
158 void (*set_constraints)(struct isp_device *isp, bool enable);
159};
160
161#endif /* __MEDIA_OMAP3ISP_H__ */