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
32enum 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
40enum {
41	ISP_LANE_SHIFT_0 = 0,
42	ISP_LANE_SHIFT_2 = 1,
43	ISP_LANE_SHIFT_4 = 2,
44	ISP_LANE_SHIFT_6 = 3,
45};
46
47/**
48 * struct isp_parallel_cfg - Parallel interface configuration
49 * @data_lane_shift: Data lane shifter
50 *		ISP_LANE_SHIFT_0 - CAMEXT[13:0] -> CAM[13:0]
51 *		ISP_LANE_SHIFT_2 - CAMEXT[13:2] -> CAM[11:0]
52 *		ISP_LANE_SHIFT_4 - CAMEXT[13:4] -> CAM[9:0]
53 *		ISP_LANE_SHIFT_6 - CAMEXT[13:6] -> CAM[7:0]
54 * @clk_pol: Pixel clock polarity
55 *		0 - Sample on rising edge, 1 - Sample on falling edge
56 * @hs_pol: Horizontal synchronization polarity
57 *		0 - Active high, 1 - Active low
58 * @vs_pol: Vertical synchronization polarity
59 *		0 - Active high, 1 - Active low
60 * @fld_pol: Field signal polarity
61 *		0 - Positive, 1 - Negative
62 * @data_pol: Data polarity
63 *		0 - Normal, 1 - One's complement
64 */
65struct isp_parallel_cfg {
66	unsigned int data_lane_shift:2;
67	unsigned int clk_pol:1;
68	unsigned int hs_pol:1;
69	unsigned int vs_pol:1;
70	unsigned int fld_pol:1;
71	unsigned int data_pol:1;
72};
73
74enum {
75	ISP_CCP2_PHY_DATA_CLOCK = 0,
76	ISP_CCP2_PHY_DATA_STROBE = 1,
77};
78
79enum {
80	ISP_CCP2_MODE_MIPI = 0,
81	ISP_CCP2_MODE_CCP2 = 1,
82};
83
84/**
85 * struct isp_csiphy_lane: CCP2/CSI2 lane position and polarity
86 * @pos: position of the lane
87 * @pol: polarity of the lane
88 */
89struct isp_csiphy_lane {
90	u8 pos;
91	u8 pol;
92};
93
94#define ISP_CSIPHY1_NUM_DATA_LANES	1
95#define ISP_CSIPHY2_NUM_DATA_LANES	2
96
97/**
98 * struct isp_csiphy_lanes_cfg - CCP2/CSI2 lane configuration
99 * @data: Configuration of one or two data lanes
100 * @clk: Clock lane configuration
101 */
102struct isp_csiphy_lanes_cfg {
103	struct isp_csiphy_lane data[ISP_CSIPHY2_NUM_DATA_LANES];
104	struct isp_csiphy_lane clk;
105};
106
107/**
108 * struct isp_ccp2_cfg - CCP2 interface configuration
109 * @strobe_clk_pol: Strobe/clock polarity
110 *		0 - Non Inverted, 1 - Inverted
111 * @crc: Enable the cyclic redundancy check
112 * @ccp2_mode: Enable CCP2 compatibility mode
113 *		ISP_CCP2_MODE_MIPI - MIPI-CSI1 mode
114 *		ISP_CCP2_MODE_CCP2 - CCP2 mode
115 * @phy_layer: Physical layer selection
116 *		ISP_CCP2_PHY_DATA_CLOCK - Data/clock physical layer
117 *		ISP_CCP2_PHY_DATA_STROBE - Data/strobe physical layer
118 * @vpclk_div: Video port output clock control
119 */
120struct isp_ccp2_cfg {
121	unsigned int strobe_clk_pol:1;
122	unsigned int crc:1;
123	unsigned int ccp2_mode:1;
124	unsigned int phy_layer:1;
125	unsigned int vpclk_div:2;
126	struct isp_csiphy_lanes_cfg lanecfg;
127};
128
129/**
130 * struct isp_csi2_cfg - CSI2 interface configuration
131 * @crc: Enable the cyclic redundancy check
132 */
133struct isp_csi2_cfg {
134	unsigned crc:1;
135	struct isp_csiphy_lanes_cfg lanecfg;
136};
137
138struct isp_bus_cfg {
139	enum isp_interface_type interface;
140	union {
141		struct isp_parallel_cfg parallel;
142		struct isp_ccp2_cfg ccp2;
143		struct isp_csi2_cfg csi2;
144	} bus; /* gcc < 4.6.0 chokes on anonymous union initializers */
145};
146
147struct isp_platform_subdev {
148	struct i2c_board_info *board_info;
149	int i2c_adapter_id;
150	struct isp_bus_cfg *bus;
151};
152
153struct isp_platform_data {
154	struct isp_platform_subdev *subdevs;
155	void (*set_constraints)(struct isp_device *isp, bool enable);
156};
157
158#endif	/* __MEDIA_OMAP3ISP_H__ */
159