target/linux/brcm2708/patches-4.14/950-0330-videodev2-Add-helper-defines-for-printing-FOURCCs.patch

   1 From 24f3ba4a4b4c471ce60d59b73762f37b4bfacde6 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Mon, 11 Sep 2017 15:42:07 +0100
   4 Subject: [PATCH 330/454] videodev2: Add helper defines for printing FOURCCs
   5
   6 New helper defines that allow printing of a FOURCC using
   7 printf(V4L2_FOURCC_CONV, V4L2_FOURCC_CONV_ARGS(fourcc));
   8
   9 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  10 ---
  11  include/uapi/linux/videodev2.h | 5 +++++
  12  1 file changed, 5 insertions(+)
  13
  14 --- a/include/uapi/linux/videodev2.h
  15 +++ b/include/uapi/linux/videodev2.h
  16 @@ -82,6 +82,11 @@
  17         ((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24))
  18  #define v4l2_fourcc_be(a, b, c, d)     (v4l2_fourcc(a, b, c, d) | (1 << 31))
  19
  20 +#define V4L2_FOURCC_CONV "%c%c%c%c%s"
  21 +#define V4L2_FOURCC_CONV_ARGS(fourcc) \
  22 +       (fourcc) & 0x7f, ((fourcc) >> 8) & 0x7f, ((fourcc) >> 16) & 0x7f, \
  23 +       ((fourcc) >> 24) & 0x7f, (fourcc) & BIT(31) ? "-BE" : ""
  24 +
  25  /*
  26   *     E N U M S
  27   */