target/linux/bcm27xx/patches-5.15/950-0487-staging-vchiq-mmal-Add-buffer-flags-for-interlaced-v.patch

   1 From 226d10bbfa79e92aaca8bdf64ec2e0aebbfe7610 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Sun, 10 Jan 2021 19:05:17 +0000
   4 Subject: [PATCH] staging/vchiq-mmal: Add buffer flags for interlaced
   5  video
   6
   7 Add the buffer flags that the firmware uses to identify fields
   8 on interlaced video
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  11 ---
  12  .../vc04_services/vchiq-mmal/mmal-msg.h       | 19 +++++++++++++++++++
  13  1 file changed, 19 insertions(+)
  14
  15 --- a/drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h
  16 +++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-msg.h
  17 @@ -253,6 +253,25 @@ struct mmal_msg_port_action_reply {
  18  /* Signals that a buffer failed to be transmitted */
  19  #define MMAL_BUFFER_HEADER_FLAG_TRANSMISSION_FAILED    BIT(10)
  20
  21 +/* Video buffer header flags
  22 + * videobufferheaderflags
  23 + * The following flags describe properties of a video buffer header.
  24 + * As there is no collision with the MMAL_BUFFER_HEADER_FLAGS_ defines, these
  25 + * flags will also be present in the MMAL_BUFFER_HEADER_T flags field.
  26 + */
  27 +#define MMAL_BUFFER_HEADER_FLAG_FORMAT_SPECIFIC_START_BIT 16
  28 +#define MMAL_BUFFER_HEADER_FLAG_FORMAT_SPECIFIC_START \
  29 +                       (1 << MMAL_BUFFER_HEADER_FLAG_FORMAT_SPECIFIC_START_BIT)
  30 +/* Signals an interlaced video frame */
  31 +#define MMAL_BUFFER_HEADER_VIDEO_FLAG_INTERLACED \
  32 +                       (MMAL_BUFFER_HEADER_FLAG_FORMAT_SPECIFIC_START << 0)
  33 +/*
  34 + * Signals that the top field of the current interlaced frame should be
  35 + * displayed first
  36 + */
  37 +#define MMAL_BUFFER_HEADER_VIDEO_FLAG_TOP_FIELD_FIRST \
  38 +                       (MMAL_BUFFER_HEADER_FLAG_FORMAT_SPECIFIC_START << 1)
  39 +
  40  struct mmal_driver_buffer {
  41         u32 magic;
  42         u32 component_handle;