v4l: Add support for omap4iss driver
[omap4-v4l2-camera:omap4-v4l2-camera.git] / include / media / omap4iss.h
1 #ifndef ARCH_ARM_PLAT_OMAP4_ISS_H
2 #define ARCH_ARM_PLAT_OMAP4_ISS_H
3
4 #include <linux/i2c.h>
5
6 struct iss_device;
7
8 enum iss_interface_type {
9         ISS_INTERFACE_CSI2A_PHY1,
10         ISS_INTERFACE_CSI2B_PHY2,
11 };
12
13 /**
14  * struct iss_csiphy_lane: CSI2 lane position and polarity
15  * @pos: position of the lane
16  * @pol: polarity of the lane
17  */
18 struct iss_csiphy_lane {
19         u8 pos;
20         u8 pol;
21 };
22
23 #define ISS_CSIPHY1_NUM_DATA_LANES      4
24 #define ISS_CSIPHY2_NUM_DATA_LANES      1
25
26 /**
27  * struct iss_csiphy_lanes_cfg - CSI2 lane configuration
28  * @data: Configuration of one or two data lanes
29  * @clk: Clock lane configuration
30  */
31 struct iss_csiphy_lanes_cfg {
32         struct iss_csiphy_lane data[ISS_CSIPHY1_NUM_DATA_LANES];
33         struct iss_csiphy_lane clk;
34 };
35
36 /**
37  * struct iss_csi2_platform_data - CSI2 interface platform data
38  * @crc: Enable the cyclic redundancy check
39  * @vpclk_div: Video port output clock control
40  */
41 struct iss_csi2_platform_data {
42         unsigned crc:1;
43         unsigned vpclk_div:2;
44         struct iss_csiphy_lanes_cfg lanecfg;
45 };
46
47 struct iss_subdev_i2c_board_info {
48         struct i2c_board_info *board_info;
49         int i2c_adapter_id;
50 };
51
52 struct iss_v4l2_subdevs_group {
53         struct iss_subdev_i2c_board_info *subdevs;
54         enum iss_interface_type interface;
55         union {
56                 struct iss_csi2_platform_data csi2;
57         } bus; /* gcc < 4.6.0 chokes on anonymous union initializers */
58 };
59
60 struct iss_platform_data {
61         struct iss_v4l2_subdevs_group *subdevs;
62         void (*set_constraints)(struct iss_device *iss, bool enable);
63 };
64
65 extern int omap4_init_camera(struct iss_platform_data *pdata,
66                              struct omap_board_data *bdata);
67 #endif