| From 1b14387d6b699c4cfc8218867997b1508a67167a Mon Sep 17 00:00:00 2001 |
| From: Dave Stevenson <dave.stevenson@raspberrypi.org> |
| Date: Fri, 6 Sep 2019 15:04:51 +0100 |
| Subject: [PATCH] v4l2: Add a Greyworld AWB mode. |
| |
| Adds a simple greyworld white balance preset, mainly for use |
| with cameras without an IR filter (eg Raspberry Pi NoIR) |
| |
| Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> |
| --- |
| drivers/media/v4l2-core/v4l2-ctrls.c | 1 + |
| include/uapi/linux/v4l2-controls.h | 1 + |
| 2 files changed, 2 insertions(+) |
| |
| --- a/drivers/media/v4l2-core/v4l2-ctrls.c |
| +++ b/drivers/media/v4l2-core/v4l2-ctrls.c |
| @@ -271,6 +271,7 @@ const char * const *v4l2_ctrl_get_menu(u |
| "Flash", |
| "Cloudy", |
| "Shade", |
| + "Greyworld", |
| NULL, |
| }; |
| static const char * const camera_iso_sensitivity_auto[] = { |
| --- a/include/uapi/linux/v4l2-controls.h |
| +++ b/include/uapi/linux/v4l2-controls.h |
| @@ -850,6 +850,7 @@ enum v4l2_auto_n_preset_white_balance { |
| V4L2_WHITE_BALANCE_FLASH = 7, |
| V4L2_WHITE_BALANCE_CLOUDY = 8, |
| V4L2_WHITE_BALANCE_SHADE = 9, |
| + V4L2_WHITE_BALANCE_GREYWORLD = 10, |
| }; |
| |
| #define V4L2_CID_WIDE_DYNAMIC_RANGE (V4L2_CID_CAMERA_CLASS_BASE+21) |