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/*

 * Multimedia device 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_MEDIA_H

#define __LINUX_MEDIA_H

#include <linux/ioctl.h>

#include <linux/types.h>

#include <linux/version.h>

#define MEDIA_API_VERSION       KERNEL_VERSION(0, 1, 0)

struct media_device_info {

        char driver[16];

        char model[32];

        char serial[40];

        char bus_info[32];

        __u32 media_version;

        __u32 hw_revision;

        __u32 driver_version;

        __u32 reserved[31];

};

#define MEDIA_ENT_ID_FLAG_NEXT          (1 << 31)

#define MEDIA_ENT_TYPE_SHIFT            16

#define MEDIA_ENT_TYPE_MASK             0x00ff0000

#define MEDIA_ENT_SUBTYPE_MASK          0x0000ffff

#define MEDIA_ENT_T_DEVNODE             (1 << MEDIA_ENT_TYPE_SHIFT)

#define MEDIA_ENT_T_DEVNODE_V4L         (MEDIA_ENT_T_DEVNODE + 1)

#define MEDIA_ENT_T_DEVNODE_FB          (MEDIA_ENT_T_DEVNODE + 2)

#define MEDIA_ENT_T_DEVNODE_ALSA        (MEDIA_ENT_T_DEVNODE + 3)

#define MEDIA_ENT_T_DEVNODE_DVB         (MEDIA_ENT_T_DEVNODE + 4)

#define MEDIA_ENT_T_V4L2_SUBDEV         (2 << MEDIA_ENT_TYPE_SHIFT)

#define MEDIA_ENT_T_V4L2_SUBDEV_SENSOR  (MEDIA_ENT_T_V4L2_SUBDEV + 1)

#define MEDIA_ENT_T_V4L2_SUBDEV_FLASH   (MEDIA_ENT_T_V4L2_SUBDEV + 2)

#define MEDIA_ENT_T_V4L2_SUBDEV_LENS    (MEDIA_ENT_T_V4L2_SUBDEV + 3)

/* A converter of analogue video to its digital representation. */

#define MEDIA_ENT_T_V4L2_SUBDEV_DECODER (MEDIA_ENT_T_V4L2_SUBDEV + 4)

#define MEDIA_ENT_FL_DEFAULT            (1 << 0)

struct media_entity_desc {

        __u32 id;

        char name[32];

        __u32 type;

        __u32 revision;

        __u32 flags;

        __u32 group_id;

        __u16 pads;

        __u16 links;

        __u32 reserved[4];

        union {

                /* Node specifications */

                struct {

                        __u32 major;

                        __u32 minor;

                } v4l;

                struct {

                        __u32 major;

                        __u32 minor;

                } fb;

                struct {

                        __u32 card;

                        __u32 device;

                        __u32 subdevice;

                } alsa;

                int dvb;

                /* Sub-device specifications */

                /* Nothing needed yet */

                __u8 raw[184];

        };

};

#define MEDIA_PAD_FL_SINK               (1 << 0)

#define MEDIA_PAD_FL_SOURCE             (1 << 1)

#define MEDIA_PAD_FL_MUST_CONNECT       (1 << 2)

struct media_pad_desc {

        __u32 entity;           /* entity ID */

        __u16 index;            /* pad index */

        __u32 flags;            /* pad flags */

        __u32 reserved[2];

};

#define MEDIA_LNK_FL_ENABLED            (1 << 0)

#define MEDIA_LNK_FL_IMMUTABLE          (1 << 1)

#define MEDIA_LNK_FL_DYNAMIC            (1 << 2)

struct media_link_desc {

        struct media_pad_desc source;

        struct media_pad_desc sink;

        __u32 flags;

        __u32 reserved[2];

};

struct media_links_enum {

        __u32 entity;

        /* Should have enough room for pads elements */

        struct media_pad_desc *pads;

        /* Should have enough room for links elements */

        struct media_link_desc *links;

        __u32 reserved[4];

};

#define MEDIA_IOC_DEVICE_INFO           _IOWR('|', 0x00, struct media_device_info)

#define MEDIA_IOC_ENUM_ENTITIES         _IOWR('|', 0x01, struct media_entity_desc)

#define MEDIA_IOC_ENUM_LINKS            _IOWR('|', 0x02, struct media_links_enum)

#define MEDIA_IOC_SETUP_LINK            _IOWR('|', 0x03, struct media_link_desc)

#endif /* __LINUX_MEDIA_H */