/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Broadcom BCM2835 V4L2 driver
 *
 * Copyright © 2013 Raspberry Pi (Trading) Ltd.
 *
 * Authors: Vincent Sanders @ Collabora
 *          Dave Stevenson @ Broadcom
 *              (now dave.stevenson@raspberrypi.org)
 *          Simon Mellor @ Broadcom
 *          Luke Diamand @ Broadcom
 *
 * MMAL structures
 *
 */
#ifndef MMAL_COMMON_H
#define MMAL_COMMON_H

#define MMAL_FOURCC(a, b, c, d) ((a) | (b << 8) | (c << 16) | (d << 24))
#define MMAL_MAGIC MMAL_FOURCC('m', 'm', 'a', 'l')

/** Special value signalling that time is not known */
#define MMAL_TIME_UNKNOWN BIT_ULL(63)

struct mmal_msg_context;

/* mapping between v4l and mmal video modes */
struct mmal_fmt {
        u32 fourcc;          /* v4l2 format id */
        int flags;           /* v4l2 flags field */
        u32 mmal;
        int depth;
        u32 mmal_component;  /* MMAL component index to be used to encode */
        u32 ybbp;            /* depth of first Y plane for planar formats */
        bool remove_padding;   /* Does the GPU have to remove padding,
                                * or can we do hide padding via bytesperline.
                                */
};

/* buffer for one video frame */
struct mmal_buffer {
        /* v4l buffer data -- must be first */
        struct vb2_v4l2_buffer vb;

        /* list of buffers available */
        struct list_head list;

        void *buffer; /* buffer pointer */
        unsigned long buffer_size; /* size of allocated buffer */

        struct mmal_msg_context *msg_context;

        unsigned long length;
        u32 mmal_flags;
        s64 dts;
        s64 pts;
};

/* */
struct mmal_colourfx {
        s32 enable;
        u32 u;
        u32 v;
};
#endif