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Diffstat (limited to 'include/media/exynos-fimc.h')
| -rw-r--r-- | include/media/exynos-fimc.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/include/media/exynos-fimc.h b/include/media/exynos-fimc.h new file mode 100644 index 000000000..69bcd2a07 --- /dev/null +++ b/include/media/exynos-fimc.h @@ -0,0 +1,161 @@ +/* + * Samsung S5P/Exynos4 SoC series camera interface driver header + * + * Copyright (C) 2010 - 2013 Samsung Electronics Co., Ltd. + * Sylwester Nawrocki <s.nawrocki@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#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 begining 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 + * @name: format description + * @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; + char *name; + 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) ? -ENOENT : (((ent)->pipe->ops && (ent)->pipe->ops->op) ? \ + (ent)->pipe->ops->op(((ent)->pipe), ##args) : -ENOIOCTLCMD)) \ + +#endif /* S5P_FIMC_H_ */ |