root/include/media/drv-intf/exynos-fimc.h

INCLUDED FROM

DEFINITIONS

1. vdev_to_exynos_video_entity

   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  * @fourcc: fourcc code for this format, 0 if not applicable
  91  * @color: the driver's private color format id
  92  * @memplanes: number of physically non-contiguous data planes
  93  * @colplanes: number of physically contiguous data planes
  94  * @colorspace: v4l2 colorspace (V4L2_COLORSPACE_*)
  95  * @depth: per plane driver's private 'number of bits per pixel'
  96  * @mdataplanes: bitmask indicating meta data plane(s), (1 << plane_no)
  97  * @flags: flags indicating which operation mode format applies to
  98  */
  99 struct fimc_fmt {
 100         u32 mbus_code;
 101         u32     fourcc;
 102         u32     color;
 103         u16     memplanes;
 104         u16     colplanes;
 105         u8      colorspace;
 106         u8      depth[FIMC_MAX_PLANES];
 107         u16     mdataplanes;
 108         u16     flags;
 109 #define FMT_FLAGS_CAM           (1 << 0)
 110 #define FMT_FLAGS_M2M_IN        (1 << 1)
 111 #define FMT_FLAGS_M2M_OUT       (1 << 2)
 112 #define FMT_FLAGS_M2M           (1 << 1 | 1 << 2)
 113 #define FMT_HAS_ALPHA           (1 << 3)
 114 #define FMT_FLAGS_COMPRESSED    (1 << 4)
 115 #define FMT_FLAGS_WRITEBACK     (1 << 5)
 116 #define FMT_FLAGS_RAW_BAYER     (1 << 6)
 117 #define FMT_FLAGS_YUV           (1 << 7)
 118 };
 119 
 120 struct exynos_media_pipeline;
 121 
 122 /*
 123  * Media pipeline operations to be called from within a video node,  i.e. the
 124  * last entity within the pipeline. Implemented by related media device driver.
 125  */
 126 struct exynos_media_pipeline_ops {
 127         int (*prepare)(struct exynos_media_pipeline *p,
 128                                                 struct media_entity *me);
 129         int (*unprepare)(struct exynos_media_pipeline *p);
 130         int (*open)(struct exynos_media_pipeline *p, struct media_entity *me,
 131                                                         bool resume);
 132         int (*close)(struct exynos_media_pipeline *p);
 133         int (*set_stream)(struct exynos_media_pipeline *p, bool state);
 134 };
 135 
 136 struct exynos_video_entity {
 137         struct video_device vdev;
 138         struct exynos_media_pipeline *pipe;
 139 };
 140 
 141 struct exynos_media_pipeline {
 142         struct media_pipeline mp;
 143         const struct exynos_media_pipeline_ops *ops;
 144 };
 145 
 146 static inline struct exynos_video_entity *vdev_to_exynos_video_entity(
 147                                         struct video_device *vdev)
 148 {
 149         return container_of(vdev, struct exynos_video_entity, vdev);
 150 }
 151 
 152 #define fimc_pipeline_call(ent, op, args...)                              \
 153         ((!(ent) || !(ent)->pipe) ? -ENOENT : \
 154         (((ent)->pipe->ops && (ent)->pipe->ops->op) ? \
 155         (ent)->pipe->ops->op(((ent)->pipe), ##args) : -ENOIOCTLCMD))      \
 156 
 157 #endif /* S5P_FIMC_H_ */