target/linux/bcm27xx/patches-5.4/950-0309-staging-bcm2835-camera-Add-greyworld-AWB-mode.patch

   1 From a1504ea7c24e74fe4d10b024d8105dc66115b01e Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Fri, 6 Sep 2019 15:13:06 +0100
   4 Subject: [PATCH] staging: bcm2835-camera: Add greyworld AWB mode
   5
   6 This is mainly used for the NoIR camera which has no IR
   7 filter and can completely confuse normal AWB presets.
   8
   9 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  10 ---
  11  drivers/staging/vc04_services/bcm2835-camera/controls.c   | 8 ++++++--
  12  .../staging/vc04_services/vchiq-mmal/mmal-parameters.h    | 1 +
  13  2 files changed, 7 insertions(+), 2 deletions(-)
  14
  15 --- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
  16 +++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
  17 @@ -477,6 +477,10 @@ static int ctrl_set_awb_mode(struct bm28
  18         case V4L2_WHITE_BALANCE_SHADE:
  19                 u32_value = MMAL_PARAM_AWBMODE_SHADE;
  20                 break;
  21 +
  22 +       case V4L2_WHITE_BALANCE_GREYWORLD:
  23 +               u32_value = MMAL_PARAM_AWBMODE_GREYWORLD;
  24 +               break;
  25         }
  26
  27         return vchiq_mmal_port_parameter_set(dev->instance, control,
  28 @@ -1014,8 +1018,8 @@ static const struct bm2835_mmal_v4l2_ctr
  29         {
  30                 V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE,
  31                 MMAL_CONTROL_TYPE_STD_MENU,
  32 -               ~0x3ff, V4L2_WHITE_BALANCE_SHADE, V4L2_WHITE_BALANCE_AUTO, 0,
  33 -               NULL,
  34 +               ~0x7ff, V4L2_WHITE_BALANCE_GREYWORLD, V4L2_WHITE_BALANCE_AUTO,
  35 +               0, NULL,
  36                 MMAL_PARAMETER_AWB_MODE,
  37                 ctrl_set_awb_mode,
  38                 false
  39 --- a/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
  40 +++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-parameters.h
  41 @@ -313,6 +313,7 @@ enum mmal_parameter_awbmode {
  42         MMAL_PARAM_AWBMODE_INCANDESCENT,
  43         MMAL_PARAM_AWBMODE_FLASH,
  44         MMAL_PARAM_AWBMODE_HORIZON,
  45 +       MMAL_PARAM_AWBMODE_GREYWORLD,
  46  };
  47
  48  enum mmal_parameter_imagefx {