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 /** 65 * struct fimc_source_info - video source description required for the host 66 * interface configuration 67 * 68 * @fimc_bus_type: FIMC camera input type 69 * @sensor_bus_type: image sensor bus type, MIPI, ITU-R BT.601 etc. 70 * @flags: the parallel sensor bus flags defining signals polarity (V4L2_MBUS_*) 71 * @mux_id: FIMC camera interface multiplexer index (separate for MIPI and ITU) 72 */ 73 struct fimc_source_info { 74 enum fimc_bus_type fimc_bus_type; 75 enum fimc_bus_type sensor_bus_type; 76 u16 flags; 77 u16 mux_id; 78 }; 79 80 /* 81 * v4l2_device notification id. This is only for internal use in the kernel. 82 * Sensor subdevs should issue S5P_FIMC_TX_END_NOTIFY notification in single 83 * frame capture mode when there is only one VSYNC pulse issued by the sensor 84 * at beginning of the frame transmission. 85 */ 86 #define S5P_FIMC_TX_END_NOTIFY _IO('e', 0) 87 88 #define FIMC_MAX_PLANES 3 89 90 /** 91 * struct fimc_fmt - color format data structure 92 * @mbus_code: media bus pixel code, -1 if not applicable 93 * @name: format description 94 * @fourcc: fourcc code for this format, 0 if not applicable 95 * @color: the driver's private color format id 96 * @memplanes: number of physically non-contiguous data planes 97 * @colplanes: number of physically contiguous data planes 98 * @colorspace: v4l2 colorspace (V4L2_COLORSPACE_*) 99 * @depth: per plane driver's private 'number of bits per pixel' 100 * @mdataplanes: bitmask indicating meta data plane(s), (1 << plane_no) 101 * @flags: flags indicating which operation mode format applies to 102 */ 103 struct fimc_fmt { 104 u32 mbus_code; 105 char *name; 106 u32 fourcc; 107 u32 color; 108 u16 memplanes; 109 u16 colplanes; 110 u8 colorspace; 111 u8 depth[FIMC_MAX_PLANES]; 112 u16 mdataplanes; 113 u16 flags; 114 #define FMT_FLAGS_CAM (1 << 0) 115 #define FMT_FLAGS_M2M_IN (1 << 1) 116 #define FMT_FLAGS_M2M_OUT (1 << 2) 117 #define FMT_FLAGS_M2M (1 << 1 | 1 << 2) 118 #define FMT_HAS_ALPHA (1 << 3) 119 #define FMT_FLAGS_COMPRESSED (1 << 4) 120 #define FMT_FLAGS_WRITEBACK (1 << 5) 121 #define FMT_FLAGS_RAW_BAYER (1 << 6) 122 #define FMT_FLAGS_YUV (1 << 7) 123 }; 124 125 struct exynos_media_pipeline; 126 127 /* 128 * Media pipeline operations to be called from within a video node, i.e. the 129 * last entity within the pipeline. Implemented by related media device driver. 130 */ 131 struct exynos_media_pipeline_ops { 132 int (*prepare)(struct exynos_media_pipeline *p, 133 struct media_entity *me); 134 int (*unprepare)(struct exynos_media_pipeline *p); 135 int (*open)(struct exynos_media_pipeline *p, struct media_entity *me, 136 bool resume); 137 int (*close)(struct exynos_media_pipeline *p); 138 int (*set_stream)(struct exynos_media_pipeline *p, bool state); 139 }; 140 141 struct exynos_video_entity { 142 struct video_device vdev; 143 struct exynos_media_pipeline *pipe; 144 }; 145 146 struct exynos_media_pipeline { 147 struct media_pipeline mp; 148 const struct exynos_media_pipeline_ops *ops; 149 }; 150 151 static inline struct exynos_video_entity *vdev_to_exynos_video_entity( 152 struct video_device *vdev) 153 { 154 return container_of(vdev, struct exynos_video_entity, vdev); 155 } 156 157 #define fimc_pipeline_call(ent, op, args...) \ 158 ((!(ent) || !(ent)->pipe) ? -ENOENT : \ 159 (((ent)->pipe->ops && (ent)->pipe->ops->op) ? \ 160 (ent)->pipe->ops->op(((ent)->pipe), ##args) : -ENOIOCTLCMD)) \ 161 162 #endif /* S5P_FIMC_H_ */ 163