openwrt/target/linux/bcm27xx/patches-5.4/950-0307-v4l2-Add-a-Greyworld-AWB-mode.patch
Álvaro Fernández Rojas 77e97abf12 bcm27xx: update to latest patches from RPi foundation
Also removes random module and switches to new bcm2711 thermal driver.
Boot tested on RPi 4B v1.1 4G.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2020-05-28 19:12:43 +02:00

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Diff

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)