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1 | /* |
2 | * Samsung S5P/Exynos4 SoC series camera interface driver header |
3 | * |
4 | * Copyright (C) 2010 - 2013 Samsung Electronics Co., Ltd. |
5 | * Sylwester Nawrocki <s.nawrocki@samsung.com> |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License version 2 as |
9 | * published by the Free Software Foundation. |
10 | */ |
11 | |
12 | #ifndef S5P_FIMC_H_ |
13 | #define S5P_FIMC_H_ |
14 | |
15 | #include <media/media-entity.h> |
16 | #include <media/v4l2-dev.h> |
17 | #include <media/v4l2-mediabus.h> |
18 | |
19 | /* |
20 | * Enumeration of data inputs to the camera subsystem. |
21 | */ |
22 | enum fimc_input { |
23 | FIMC_INPUT_PARALLEL_0 = 1, |
24 | FIMC_INPUT_PARALLEL_1, |
25 | FIMC_INPUT_MIPI_CSI2_0 = 3, |
26 | FIMC_INPUT_MIPI_CSI2_1, |
27 | FIMC_INPUT_WRITEBACK_A = 5, |
28 | FIMC_INPUT_WRITEBACK_B, |
29 | FIMC_INPUT_WRITEBACK_ISP = 5, |
30 | }; |
31 | |
32 | /* |
33 | * Enumeration of the FIMC data bus types. |
34 | */ |
35 | enum fimc_bus_type { |
36 | /* Camera parallel bus */ |
37 | FIMC_BUS_TYPE_ITU_601 = 1, |
38 | /* Camera parallel bus with embedded synchronization */ |
39 | FIMC_BUS_TYPE_ITU_656, |
40 | /* Camera MIPI-CSI2 serial bus */ |
41 | FIMC_BUS_TYPE_MIPI_CSI2, |
42 | /* FIFO link from LCD controller (WriteBack A) */ |
43 | FIMC_BUS_TYPE_LCD_WRITEBACK_A, |
44 | /* FIFO link from LCD controller (WriteBack B) */ |
45 | FIMC_BUS_TYPE_LCD_WRITEBACK_B, |
46 | /* FIFO link from FIMC-IS */ |
47 | FIMC_BUS_TYPE_ISP_WRITEBACK = FIMC_BUS_TYPE_LCD_WRITEBACK_B, |
48 | }; |
49 | |
50 | #define fimc_input_is_parallel(x) ((x) == 1 || (x) == 2) |
51 | #define fimc_input_is_mipi_csi(x) ((x) == 3 || (x) == 4) |
52 | |
53 | /* |
54 | * The subdevices' group IDs. |
55 | */ |
56 | #define GRP_ID_SENSOR (1 << 8) |
57 | #define GRP_ID_FIMC_IS_SENSOR (1 << 9) |
58 | #define GRP_ID_WRITEBACK (1 << 10) |
59 | #define GRP_ID_CSIS (1 << 11) |
60 | #define GRP_ID_FIMC (1 << 12) |
61 | #define GRP_ID_FLITE (1 << 13) |
62 | #define GRP_ID_FIMC_IS (1 << 14) |
63 | |
64 | struct i2c_board_info; |
65 | |
66 | /** |
67 | * struct fimc_source_info - video source description required for the host |
68 | * interface configuration |
69 | * |
70 | * @board_info: pointer to I2C subdevice's board info |
71 | * @clk_frequency: frequency of the clock the host interface provides to sensor |
72 | * @fimc_bus_type: FIMC camera input type |
73 | * @sensor_bus_type: image sensor bus type, MIPI, ITU-R BT.601 etc. |
74 | * @flags: the parallel sensor bus flags defining signals polarity (V4L2_MBUS_*) |
75 | * @i2c_bus_num: i2c control bus id the sensor is attached to |
76 | * @mux_id: FIMC camera interface multiplexer index (separate for MIPI and ITU) |
77 | * @clk_id: index of the SoC peripheral clock for sensors |
78 | */ |
79 | struct fimc_source_info { |
80 | struct i2c_board_info *board_info; |
81 | unsigned long clk_frequency; |
82 | enum fimc_bus_type fimc_bus_type; |
83 | enum fimc_bus_type sensor_bus_type; |
84 | u16 flags; |
85 | u16 i2c_bus_num; |
86 | u16 mux_id; |
87 | u8 clk_id; |
88 | }; |
89 | |
90 | /** |
91 | * struct s5p_platform_fimc - camera host interface platform data |
92 | * |
93 | * @source_info: properties of an image source for the host interface setup |
94 | * @num_clients: the number of attached image sources |
95 | */ |
96 | struct s5p_platform_fimc { |
97 | struct fimc_source_info *source_info; |
98 | int num_clients; |
99 | }; |
100 | |
101 | /* |
102 | * v4l2_device notification id. This is only for internal use in the kernel. |
103 | * Sensor subdevs should issue S5P_FIMC_TX_END_NOTIFY notification in single |
104 | * frame capture mode when there is only one VSYNC pulse issued by the sensor |
105 | * at begining of the frame transmission. |
106 | */ |
107 | #define S5P_FIMC_TX_END_NOTIFY _IO('e', 0) |
108 | |
109 | #define FIMC_MAX_PLANES 3 |
110 | |
111 | /** |
112 | * struct fimc_fmt - color format data structure |
113 | * @mbus_code: media bus pixel code, -1 if not applicable |
114 | * @name: format description |
115 | * @fourcc: fourcc code for this format, 0 if not applicable |
116 | * @color: the driver's private color format id |
117 | * @memplanes: number of physically non-contiguous data planes |
118 | * @colplanes: number of physically contiguous data planes |
119 | * @colorspace: v4l2 colorspace (V4L2_COLORSPACE_*) |
120 | * @depth: per plane driver's private 'number of bits per pixel' |
121 | * @mdataplanes: bitmask indicating meta data plane(s), (1 << plane_no) |
122 | * @flags: flags indicating which operation mode format applies to |
123 | */ |
124 | struct fimc_fmt { |
125 | enum v4l2_mbus_pixelcode mbus_code; |
126 | char *name; |
127 | u32 fourcc; |
128 | u32 color; |
129 | u16 memplanes; |
130 | u16 colplanes; |
131 | u8 colorspace; |
132 | u8 depth[FIMC_MAX_PLANES]; |
133 | u16 mdataplanes; |
134 | u16 flags; |
135 | #define FMT_FLAGS_CAM (1 << 0) |
136 | #define FMT_FLAGS_M2M_IN (1 << 1) |
137 | #define FMT_FLAGS_M2M_OUT (1 << 2) |
138 | #define FMT_FLAGS_M2M (1 << 1 | 1 << 2) |
139 | #define FMT_HAS_ALPHA (1 << 3) |
140 | #define FMT_FLAGS_COMPRESSED (1 << 4) |
141 | #define FMT_FLAGS_WRITEBACK (1 << 5) |
142 | #define FMT_FLAGS_RAW_BAYER (1 << 6) |
143 | #define FMT_FLAGS_YUV (1 << 7) |
144 | }; |
145 | |
146 | struct exynos_media_pipeline; |
147 | |
148 | /* |
149 | * Media pipeline operations to be called from within a video node, i.e. the |
150 | * last entity within the pipeline. Implemented by related media device driver. |
151 | */ |
152 | struct exynos_media_pipeline_ops { |
153 | int (*prepare)(struct exynos_media_pipeline *p, |
154 | struct media_entity *me); |
155 | int (*unprepare)(struct exynos_media_pipeline *p); |
156 | int (*open)(struct exynos_media_pipeline *p, struct media_entity *me, |
157 | bool resume); |
158 | int (*close)(struct exynos_media_pipeline *p); |
159 | int (*set_stream)(struct exynos_media_pipeline *p, bool state); |
160 | }; |
161 | |
162 | struct exynos_video_entity { |
163 | struct video_device vdev; |
164 | struct exynos_media_pipeline *pipe; |
165 | }; |
166 | |
167 | struct exynos_media_pipeline { |
168 | struct media_pipeline mp; |
169 | const struct exynos_media_pipeline_ops *ops; |
170 | }; |
171 | |
172 | static inline struct exynos_video_entity *vdev_to_exynos_video_entity( |
173 | struct video_device *vdev) |
174 | { |
175 | return container_of(vdev, struct exynos_video_entity, vdev); |
176 | } |
177 | |
178 | #define fimc_pipeline_call(ent, op, args...) \ |
179 | (!(ent) ? -ENOENT : (((ent)->pipe->ops && (ent)->pipe->ops->op) ? \ |
180 | (ent)->pipe->ops->op(((ent)->pipe), ##args) : -ENOIOCTLCMD)) \ |
181 | |
182 | #endif /* S5P_FIMC_H_ */ |
183 |
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