From aab21ee0552019c4bf1c7b829aea2992b59fb9bf Mon Sep 17 00:00:00 2001
From: Florian Eckert <fe@dev.tdt.de>
Date: Tue, 31 Oct 2023 08:14:21 +0100
Subject: [PATCH] tools: add ledumon and ledhwbmon packages

ledumon:
This program creates a new userspace LED class device and monitors it.
For this it es using the kmod-leds-uled.ko kernel module.

ledhwbmon:
This program monitors LED brightness level changes having its origin
in hardware/firmware, i.e. outside of kernel control.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
---
 package/devel/leds/Makefile | 74 +++++++++++++++++++++++++++++++++++++
 target/sdk/Makefile         |  1 +
 2 files changed, 75 insertions(+)
 create mode 100644 package/devel/leds/Makefile

diff --git a/package/devel/leds/Makefile b/package/devel/leds/Makefile
new file mode 100644
index 0000000000..47b9674c4f
--- /dev/null
+++ b/package/devel/leds/Makefile
@@ -0,0 +1,74 @@
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/kernel.mk
+
+PKG_NAME:=leds
+PKG_VERSION:=$(LINUX_VERSION)
+PKG_RELEASE:=1
+
+PKG_BUILD_PARALLEL:=1
+PKG_MAINTAINER:=Florian Eckert <fe@dev.tdt.de>
+PKG_LICENSE:=GPL-2.0-only
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/leds/default
+  SECTION:=devel
+  CATEGORY:=Development
+  VERSION:=$(LINUX_VERSION)-$(PKG_RELEASE)
+  URL:=http://www.kernel.org
+endef
+
+define Package/ledumon
+  $(Package/leds/default)
+  TITLE:=Monitoring userspace LEDs
+  DEPENDS:=+kmod-leds-uleds
+endef
+
+define Package/ledumon/description
+  This program creates a new userspace LED class device and monitors it.
+  A timestamp and brightness value is printed each time the brightness
+  changes.
+endef
+
+define Package/ledhwbmon
+  $(Package/leds/default)
+  TITLE:=Monitoring hardware controlled LED brightness
+endef
+
+define Package/ledhwbmon/description
+  This program monitors LED brightness level changes having its origin
+  in hardware/firmware, i.e. outside of kernel control. A timestamp and
+  brightness value is printed each time the brightness changes.
+endef
+
+MAKE_FLAGS = \
+	ARCH="$(LINUX_KARCH)" \
+	CROSS_COMPILE="$(TARGET_CROSS)" \
+	CC="$(TARGET_CC)" \
+	LD="$(TARGET_CROSS)ld" \
+	EXTRA_CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \
+	LDFLAGS="$(TARGET_LDFLAGS) -static" \
+	$(if $(findstring c,$(OPENWRT_VERBOSE)),V=1,V='') \
+	prefix=/usr
+
+define Build/Compile
+	-$(MAKE) clean \
+		-C $(LINUX_DIR)/tools/leds
+	+$(MAKE_FLAGS) $(MAKE) \
+		-C $(LINUX_DIR)/tools/leds
+endef
+
+define Package/ledumon/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(LINUX_DIR)/tools/leds/uledmon \
+		$(1)/usr/bin/ledumon
+endef
+
+define Package/ledhwbmon/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(LINUX_DIR)/tools/leds/led_hw_brightness_mon \
+		$(1)/usr/bin/ledhwbmon
+endef
+
+$(eval $(call BuildPackage,ledumon))
+$(eval $(call BuildPackage,ledhwbmon))
diff --git a/target/sdk/Makefile b/target/sdk/Makefile
index fbe35170c1..c57a451617 100644
--- a/target/sdk/Makefile
+++ b/target/sdk/Makefile
@@ -86,6 +86,7 @@ KERNEL_FILES := $(patsubst $(TOPDIR)/%,%,$(wildcard $(addprefix $(LINUX_DIR)/,$(
 #
 USERSPACE_UTILS_FILES := \
 	tools/build \
+	tools/leds \
 	tools/power/cpupower \
 	tools/scripts \
 	tools/spi \