| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* |
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| 3 | * Broadcom BCM2835 V4L2 driver |
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| 4 | * |
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| 5 | * Copyright © 2013 Raspberry Pi (Trading) Ltd. |
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| 6 | * |
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| 7 | * Authors: Vincent Sanders @ Collabora |
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| 8 | * Dave Stevenson @ Broadcom |
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| 9 | * (now dave.stevenson@raspberrypi.org) |
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| 10 | * Simon Mellor @ Broadcom |
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| 11 | * Luke Diamand @ Broadcom |
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| 12 | * |
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| 13 | * MMAL structures |
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| 14 | * |
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| 15 | */ |
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| 16 | #ifndef MMAL_COMMON_H |
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| 17 | #define MMAL_COMMON_H |
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| 18 | |
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| 19 | #define MMAL_FOURCC(a, b, c, d) ((a) | (b << 8) | (c << 16) | (d << 24)) |
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| 20 | #define MMAL_MAGIC MMAL_FOURCC('m', 'm', 'a', 'l') |
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| 21 | |
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| 22 | /** Special value signalling that time is not known */ |
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| 23 | #define MMAL_TIME_UNKNOWN BIT_ULL(63) |
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| 24 | |
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| 25 | struct mmal_msg_context; |
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| 26 | |
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| 27 | /* mapping between v4l and mmal video modes */ |
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| 28 | struct mmal_fmt { |
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| 29 | u32 fourcc; /* v4l2 format id */ |
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| 30 | int flags; /* v4l2 flags field */ |
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| 31 | u32 mmal; |
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| 32 | int depth; |
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| 33 | u32 mmal_component; /* MMAL component index to be used to encode */ |
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| 34 | u32 ybbp; /* depth of first Y plane for planar formats */ |
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| 35 | bool remove_padding; /* Does the GPU have to remove padding, |
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| 36 | * or can we do hide padding via bytesperline. |
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| 37 | */ |
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| 38 | }; |
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| 39 | |
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| 40 | /* buffer for one video frame */ |
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| 41 | struct mmal_buffer { |
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| 42 | /* v4l buffer data -- must be first */ |
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| 43 | struct vb2_v4l2_buffer vb; |
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| 44 | |
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| 45 | /* list of buffers available */ |
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| 46 | struct list_head list; |
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| 47 | |
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| 48 | void *buffer; /* buffer pointer */ |
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| 49 | unsigned long buffer_size; /* size of allocated buffer */ |
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| 50 | |
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| 51 | struct mmal_msg_context *msg_context; |
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| 52 | |
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| 53 | unsigned long length; |
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| 54 | u32 mmal_flags; |
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| 55 | s64 dts; |
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| 56 | s64 pts; |
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| 57 | }; |
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| 58 | |
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| 59 | /* */ |
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| 60 | struct mmal_colourfx { |
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| 61 | s32 enable; |
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| 62 | u32 u; |
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| 63 | u32 v; |
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| 64 | }; |
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| 65 | #endif |
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| 66 | |
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