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/*

 * V4L2 subdev userspace API

 *

 * Copyright (C) 2010 Nokia Corporation

 *

 * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

 *           Sakari Ailus <sakari.ailus@iki.fi>

 *

 * 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.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#ifndef __LINUX_V4L2_SUBDEV_H

#define __LINUX_V4L2_SUBDEV_H

#include <linux/ioctl.h>

#include <linux/types.h>

#include <linux/v4l2-common.h>

#include <linux/v4l2-mediabus.h>

/**

 * enum v4l2_subdev_format_whence - Media bus format type

 * @V4L2_SUBDEV_FORMAT_TRY: try format, for negotiation only

 * @V4L2_SUBDEV_FORMAT_ACTIVE: active format, applied to the device

 */

enum v4l2_subdev_format_whence {

        V4L2_SUBDEV_FORMAT_TRY = 0,

        V4L2_SUBDEV_FORMAT_ACTIVE = 1,

};

/**

 * struct v4l2_subdev_format - Pad-level media bus format

 * @which: format type (from enum v4l2_subdev_format_whence)

 * @pad: pad number, as reported by the media API

 * @format: media bus format (format code and frame size)

 */

struct v4l2_subdev_format {

        __u32 which;

        __u32 pad;

        struct v4l2_mbus_framefmt format;

        __u32 reserved[8];

};

/**

 * struct v4l2_subdev_crop - Pad-level crop settings

 * @which: format type (from enum v4l2_subdev_format_whence)

 * @pad: pad number, as reported by the media API

 * @rect: pad crop rectangle boundaries

 */

struct v4l2_subdev_crop {

        __u32 which;

        __u32 pad;

        struct v4l2_rect rect;

        __u32 reserved[8];

};

/**

 * struct v4l2_subdev_mbus_code_enum - Media bus format enumeration

 * @pad: pad number, as reported by the media API

 * @index: format index during enumeration

 * @code: format code (from enum v4l2_mbus_pixelcode)

 */

struct v4l2_subdev_mbus_code_enum {

        __u32 pad;

        __u32 index;

        __u32 code;

        __u32 reserved[9];

};

/**

 * struct v4l2_subdev_frame_size_enum - Media bus format enumeration

 * @pad: pad number, as reported by the media API

 * @index: format index during enumeration

 * @code: format code (from enum v4l2_mbus_pixelcode)

 */

struct v4l2_subdev_frame_size_enum {

        __u32 index;

        __u32 pad;

        __u32 code;

        __u32 min_width;

        __u32 max_width;

        __u32 min_height;

        __u32 max_height;

        __u32 reserved[9];

};

/**

 * struct v4l2_subdev_frame_interval - Pad-level frame rate

 * @pad: pad number, as reported by the media API

 * @interval: frame interval in seconds

 */

struct v4l2_subdev_frame_interval {

        __u32 pad;

        struct v4l2_fract interval;

        __u32 reserved[9];

};

/**

 * struct v4l2_subdev_frame_interval_enum - Frame interval enumeration

 * @pad: pad number, as reported by the media API

 * @index: frame interval index during enumeration

 * @code: format code (from enum v4l2_mbus_pixelcode)

 * @width: frame width in pixels

 * @height: frame height in pixels

 * @interval: frame interval in seconds

 */

struct v4l2_subdev_frame_interval_enum {

        __u32 index;

        __u32 pad;

        __u32 code;

        __u32 width;

        __u32 height;

        struct v4l2_fract interval;

        __u32 reserved[9];

};

/**

 * struct v4l2_subdev_selection - selection info

 *

 * @which: either V4L2_SUBDEV_FORMAT_ACTIVE or V4L2_SUBDEV_FORMAT_TRY

 * @pad: pad number, as reported by the media API

 * @target: Selection target, used to choose one of possible rectangles,

 *          defined in v4l2-common.h; V4L2_SEL_TGT_* .

 * @flags: constraint flags, defined in v4l2-common.h; V4L2_SEL_FLAG_*.

 * @r: coordinates of the selection window

 * @reserved: for future use, set to zero for now

 *

 * Hardware may use multiple helper windows to process a video stream.

 * The structure is used to exchange this selection areas between

 * an application and a driver.

 */

struct v4l2_subdev_selection {

        __u32 which;

        __u32 pad;

        __u32 target;

        __u32 flags;

        struct v4l2_rect r;

        __u32 reserved[8];

};

struct v4l2_subdev_edid {

        __u32 pad;

        __u32 start_block;

        __u32 blocks;

        __u32 reserved[5];

        __u8 *edid;

};

#define VIDIOC_SUBDEV_G_FMT     _IOWR('V',  4, struct v4l2_subdev_format)

#define VIDIOC_SUBDEV_S_FMT     _IOWR('V',  5, struct v4l2_subdev_format)

#define VIDIOC_SUBDEV_G_FRAME_INTERVAL \

                        _IOWR('V', 21, struct v4l2_subdev_frame_interval)

#define VIDIOC_SUBDEV_S_FRAME_INTERVAL \

                        _IOWR('V', 22, struct v4l2_subdev_frame_interval)

#define VIDIOC_SUBDEV_ENUM_MBUS_CODE \

                        _IOWR('V',  2, struct v4l2_subdev_mbus_code_enum)

#define VIDIOC_SUBDEV_ENUM_FRAME_SIZE \

                        _IOWR('V', 74, struct v4l2_subdev_frame_size_enum)

#define VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL \

                        _IOWR('V', 75, struct v4l2_subdev_frame_interval_enum)

#define VIDIOC_SUBDEV_G_CROP    _IOWR('V', 59, struct v4l2_subdev_crop)

#define VIDIOC_SUBDEV_S_CROP    _IOWR('V', 60, struct v4l2_subdev_crop)

#define VIDIOC_SUBDEV_G_SELECTION \

        _IOWR('V', 61, struct v4l2_subdev_selection)

#define VIDIOC_SUBDEV_S_SELECTION \

        _IOWR('V', 62, struct v4l2_subdev_selection)

#define VIDIOC_SUBDEV_G_EDID    _IOWR('V', 40, struct v4l2_subdev_edid)

#define VIDIOC_SUBDEV_S_EDID    _IOWR('V', 41, struct v4l2_subdev_edid)

#endif