1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Samsung S5P/Exynos4 SoC series camera interface driver header 4 * 5 * Copyright (C) 2010 - 2013 Samsung Electronics Co., Ltd. 6 * Sylwester Nawrocki <s.nawrocki@samsung.com> 7 */ 8 9 #ifndef S5P_FIMC_H_ 10 #define S5P_FIMC_H_ 11 12 #include <media/media-entity.h> 13 #include <media/v4l2-dev.h> 14 #include <media/v4l2-mediabus.h> 15 16 /* 17 * Enumeration of data inputs to the camera subsystem. 18 */ 19 enum fimc_input { 20 FIMC_INPUT_PARALLEL_0 = 1, 21 FIMC_INPUT_PARALLEL_1, 22 FIMC_INPUT_MIPI_CSI2_0 = 3, 23 FIMC_INPUT_MIPI_CSI2_1, 24 FIMC_INPUT_WRITEBACK_A = 5, 25 FIMC_INPUT_WRITEBACK_B, 26 FIMC_INPUT_WRITEBACK_ISP = 5, 27 }; 28 29 /* 30 * Enumeration of the FIMC data bus types. 31 */ 32 enum fimc_bus_type { 33 /* Camera parallel bus */ 34 FIMC_BUS_TYPE_ITU_601 = 1, 35 /* Camera parallel bus with embedded synchronization */ 36 FIMC_BUS_TYPE_ITU_656, 37 /* Camera MIPI-CSI2 serial bus */ 38 FIMC_BUS_TYPE_MIPI_CSI2, 39 /* FIFO link from LCD controller (WriteBack A) */ 40 FIMC_BUS_TYPE_LCD_WRITEBACK_A, 41 /* FIFO link from LCD controller (WriteBack B) */ 42 FIMC_BUS_TYPE_LCD_WRITEBACK_B, 43 /* FIFO link from FIMC-IS */ 44 FIMC_BUS_TYPE_ISP_WRITEBACK = FIMC_BUS_TYPE_LCD_WRITEBACK_B, 45 }; 46 47 #define fimc_input_is_parallel(x) ((x) == 1 || (x) == 2) 48 #define fimc_input_is_mipi_csi(x) ((x) == 3 || (x) == 4) 49 50 /* 51 * The subdevices' group IDs. 52 */ 53 #define GRP_ID_SENSOR (1 << 8) 54 #define GRP_ID_FIMC_IS_SENSOR (1 << 9) 55 #define GRP_ID_WRITEBACK (1 << 10) 56 #define GRP_ID_CSIS (1 << 11) 57 #define GRP_ID_FIMC (1 << 12) 58 #define GRP_ID_FLITE (1 << 13) 59 #define GRP_ID_FIMC_IS (1 << 14) 60 61 /** 62 * struct fimc_source_info - video source description required for the host 63 * interface configuration 64 * 65 * @fimc_bus_type: FIMC camera input type 66 * @sensor_bus_type: image sensor bus type, MIPI, ITU-R BT.601 etc. 67 * @flags: the parallel sensor bus flags defining signals polarity (V4L2_MBUS_*) 68 * @mux_id: FIMC camera interface multiplexer index (separate for MIPI and ITU) 69 */ 70 struct fimc_source_info { 71 enum fimc_bus_type fimc_bus_type; 72 enum fimc_bus_type sensor_bus_type; 73 u16 flags; 74 u16 mux_id; 75 }; 76 77 /* 78 * v4l2_device notification id. This is only for internal use in the kernel. 79 * Sensor subdevs should issue S5P_FIMC_TX_END_NOTIFY notification in single 80 * frame capture mode when there is only one VSYNC pulse issued by the sensor 81 * at beginning of the frame transmission. 82 */ 83 #define S5P_FIMC_TX_END_NOTIFY _IO('e', 0) 84 85 #define FIMC_MAX_PLANES 3 86 87 /** 88 * struct fimc_fmt - color format data structure 89 * @mbus_code: media bus pixel code, -1 if not applicable 90 * @name: format description 91 * @fourcc: fourcc code for this format, 0 if not applicable 92 * @color: the driver's private color format id 93 * @memplanes: number of physically non-contiguous data planes 94 * @colplanes: number of physically contiguous data planes 95 * @colorspace: v4l2 colorspace (V4L2_COLORSPACE_*) 96 * @depth: per plane driver's private 'number of bits per pixel' 97 * @mdataplanes: bitmask indicating meta data plane(s), (1 << plane_no) 98 * @flags: flags indicating which operation mode format applies to 99 */ 100 struct fimc_fmt { 101 u32 mbus_code; 102 char *name; 103 u32 fourcc; 104 u32 color; 105 u16 memplanes; 106 u16 colplanes; 107 u8 colorspace; 108 u8 depth[FIMC_MAX_PLANES]; 109 u16 mdataplanes; 110 u16 flags; 111 #define FMT_FLAGS_CAM (1 << 0) 112 #define FMT_FLAGS_M2M_IN (1 << 1) 113 #define FMT_FLAGS_M2M_OUT (1 << 2) 114 #define FMT_FLAGS_M2M (1 << 1 | 1 << 2) 115 #define FMT_HAS_ALPHA (1 << 3) 116 #define FMT_FLAGS_COMPRESSED (1 << 4) 117 #define FMT_FLAGS_WRITEBACK (1 << 5) 118 #define FMT_FLAGS_RAW_BAYER (1 << 6) 119 #define FMT_FLAGS_YUV (1 << 7) 120 }; 121 122 struct exynos_media_pipeline; 123 124 /* 125 * Media pipeline operations to be called from within a video node, i.e. the 126 * last entity within the pipeline. Implemented by related media device driver. 127 */ 128 struct exynos_media_pipeline_ops { 129 int (*prepare)(struct exynos_media_pipeline *p, 130 struct media_entity *me); 131 int (*unprepare)(struct exynos_media_pipeline *p); 132 int (*open)(struct exynos_media_pipeline *p, struct media_entity *me, 133 bool resume); 134 int (*close)(struct exynos_media_pipeline *p); 135 int (*set_stream)(struct exynos_media_pipeline *p, bool state); 136 }; 137 138 struct exynos_video_entity { 139 struct video_device vdev; 140 struct exynos_media_pipeline *pipe; 141 }; 142 143 struct exynos_media_pipeline { 144 struct media_pipeline mp; 145 const struct exynos_media_pipeline_ops *ops; 146 }; 147 148 static inline struct exynos_video_entity *vdev_to_exynos_video_entity( 149 struct video_device *vdev) 150 { 151 return container_of(vdev, struct exynos_video_entity, vdev); 152 } 153 154 #define fimc_pipeline_call(ent, op, args...) \ 155 ((!(ent) || !(ent)->pipe) ? -ENOENT : \ 156 (((ent)->pipe->ops && (ent)->pipe->ops->op) ? \ 157 (ent)->pipe->ops->op(((ent)->pipe), ##args) : -ENOIOCTLCMD)) \ 158 159 #endif /* S5P_FIMC_H_ */ 160