/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Samsung S5P / Exynos4 SoC series camera interface driver header
*
* Copyright ( C ) 2010 - 2013 Samsung Electronics Co . , Ltd .
* Sylwester Nawrocki < s . nawrocki @ samsung . com >
*/
#ifndef S5P_FIMC_H_
#define S5P_FIMC_H_
#include <media/media-entity.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-mediabus.h>
/*
* Enumeration of data inputs to the camera subsystem .
*/
enum fimc_input {
FIMC_INPUT_PARALLEL_0 = 1 ,
FIMC_INPUT_PARALLEL_1,
FIMC_INPUT_MIPI_CSI2_0 = 3 ,
FIMC_INPUT_MIPI_CSI2_1,
FIMC_INPUT_WRITEBACK_A = 5 ,
FIMC_INPUT_WRITEBACK_B,
FIMC_INPUT_WRITEBACK_ISP = 5 ,
};
/*
* Enumeration of the FIMC data bus types .
*/
enum fimc_bus_type {
/* Camera parallel bus */
FIMC_BUS_TYPE_ITU_601 = 1 ,
/* Camera parallel bus with embedded synchronization */
FIMC_BUS_TYPE_ITU_656,
/* Camera MIPI-CSI2 serial bus */
FIMC_BUS_TYPE_MIPI_CSI2,
/* FIFO link from LCD controller (WriteBack A) */
FIMC_BUS_TYPE_LCD_WRITEBACK_A,
/* FIFO link from LCD controller (WriteBack B) */
FIMC_BUS_TYPE_LCD_WRITEBACK_B,
/* FIFO link from FIMC-IS */
FIMC_BUS_TYPE_ISP_WRITEBACK = FIMC_BUS_TYPE_LCD_WRITEBACK_B,
};
#define fimc_input_is_parallel(x) ((x) == 1 || (x) == 2 )
#define fimc_input_is_mipi_csi(x) ((x) == 3 || (x) == 4 )
/*
* The subdevices ' group IDs .
*/
#define GRP_ID_SENSOR (1 << 8 )
#define GRP_ID_FIMC_IS_SENSOR (1 << 9 )
#define GRP_ID_WRITEBACK (1 << 10 )
#define GRP_ID_CSIS (1 << 11 )
#define GRP_ID_FIMC (1 << 12 )
#define GRP_ID_FLITE (1 << 13 )
#define GRP_ID_FIMC_IS (1 << 14 )
/**
* struct fimc_source_info - video source description required for the host
* interface configuration
*
* @ fimc_bus_type : FIMC camera input type
* @ sensor_bus_type : image sensor bus type , MIPI , ITU - R BT . 601 etc .
* @ flags : the parallel sensor bus flags defining signals polarity ( V4L2_MBUS_ * )
* @ mux_id : FIMC camera interface multiplexer index ( separate for MIPI and ITU )
*/
struct fimc_source_info {
enum fimc_bus_type fimc_bus_type;
enum fimc_bus_type sensor_bus_type;
u16 flags;
u16 mux_id;
};
/*
* v4l2_device notification id . This is only for internal use in the kernel .
* Sensor subdevs should issue S5P_FIMC_TX_END_NOTIFY notification in single
* frame capture mode when there is only one VSYNC pulse issued by the sensor
* at beginning of the frame transmission .
*/
#define S5P_FIMC_TX_END_NOTIFY _IO('e' , 0 )
#define FIMC_MAX_PLANES 3
/**
* struct fimc_fmt - color format data structure
* @ mbus_code : media bus pixel code , - 1 if not applicable
* @ fourcc : fourcc code for this format , 0 if not applicable
* @ color : the driver ' s private color format id
* @ memplanes : number of physically non - contiguous data planes
* @ colplanes : number of physically contiguous data planes
* @ colorspace : v4l2 colorspace ( V4L2_COLORSPACE_ * )
* @ depth : per plane driver ' s private ' number of bits per pixel '
* @ mdataplanes : bitmask indicating meta data plane ( s ) , ( 1 < < plane_no )
* @ flags : flags indicating which operation mode format applies to
*/
struct fimc_fmt {
u32 mbus_code;
u32 fourcc;
u32 color;
u16 memplanes;
u16 colplanes;
u8 colorspace;
u8 depth[FIMC_MAX_PLANES];
u16 mdataplanes;
u16 flags;
#define FMT_FLAGS_CAM (1 << 0 )
#define FMT_FLAGS_M2M_IN (1 << 1 )
#define FMT_FLAGS_M2M_OUT (1 << 2 )
#define FMT_FLAGS_M2M (1 << 1 | 1 << 2 )
#define FMT_HAS_ALPHA (1 << 3 )
#define FMT_FLAGS_COMPRESSED (1 << 4 )
#define FMT_FLAGS_WRITEBACK (1 << 5 )
#define FMT_FLAGS_RAW_BAYER (1 << 6 )
#define FMT_FLAGS_YUV (1 << 7 )
};
struct exynos_media_pipeline;
/*
* Media pipeline operations to be called from within a video node , i . e . the
* last entity within the pipeline . Implemented by related media device driver .
*/
struct exynos_media_pipeline_ops {
int (*prepare)(struct exynos_media_pipeline *p,
struct media_entity *me);
int (*unprepare)(struct exynos_media_pipeline *p);
int (*open)(struct exynos_media_pipeline *p, struct media_entity *me,
bool resume);
int (*close)(struct exynos_media_pipeline *p);
int (*set_stream)(struct exynos_media_pipeline *p, bool state);
};
struct exynos_video_entity {
struct video_device vdev;
struct exynos_media_pipeline *pipe;
};
struct exynos_media_pipeline {
struct media_pipeline mp;
const struct exynos_media_pipeline_ops *ops;
};
static inline struct exynos_video_entity *vdev_to_exynos_video_entity(
struct video_device *vdev)
{
return container_of(vdev, struct exynos_video_entity, vdev);
}
#define fimc_pipeline_call(ent, op, args...) \
((!(ent) || !(ent)->pipe) ? -ENOENT : \
(((ent)->pipe->ops && (ent)->pipe->ops->op) ? \
(ent)->pipe->ops->op(((ent)->pipe), ## args) : -ENOIOCTLCMD)) \
#endif /* S5P_FIMC_H_ */
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