From 70d99430a2f2d3d9d855957d7ae611e58e2bd886 Mon Sep 17 00:00:00 2001
From: haemka <git@haemka.in>
Date: Sun, 1 Aug 2021 13:20:56 +0200
Subject: [PATCH] initial version of g14control.sh, fanmode integrated

---
 fanmode.sh    |  24 ----------
 g14control.sh | 127 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 127 insertions(+), 24 deletions(-)
 delete mode 100755 fanmode.sh
 create mode 100755 g14control.sh

diff --git a/fanmode.sh b/fanmode.sh
deleted file mode 100755
index 46c7f7f..0000000
--- a/fanmode.sh
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env bash
-
-# 0 = Normal/Balanced
-# 1 = Boost
-# 2 = Silent.
-
-MODELIST=("Balanced" "Boost" "Silent")
-INTERFACE="/sys/devices/platform/asus-nb-wmi/throttle_thermal_policy"
-CURRENT_MODE=$(cat ${INTERFACE})
-MODE=${CURRENT_MODE}
-
-if [[ ! ${1} ]]; then
-    [[ ${MODE} == 2 ]] && MODE=0 || let MODE+=1
-else
-    MODE=${1}
-fi
-
-echo ${MODE} > ${INTERFACE}
-
-CHECK_MODE=$(cat ${INTERFACE})
-
-notify-send "Fan mode changed" "${MODELIST[${CURRENT_MODE}]} -> ${MODELIST[${CHECK_MODE}]}"
-
-
diff --git a/g14control.sh b/g14control.sh
new file mode 100755
index 0000000..4a33b70
--- /dev/null
+++ b/g14control.sh
@@ -0,0 +1,127 @@
+#!/usr/bin/env bash
+
+# g14control.sh
+#
+# version: 1.0
+# date: 2021-08-01
+# author: hmk 
+# description: A hardware interface script for ASUS ROG Zephyrus G14 laptops.
+#     Primary purpose is to give a minimal wrapper for hardware control in
+#     minimal desktop environments or without any desktop environment a all.
+#
+#     Tested on:
+#     - GA401IH-BM013T (2020)
+#
+#
+# TODO:
+# - POSIX compliancy (currently uses non-POSIX-complient bash extensions)
+# - is amdgpu_bl0 the only dsiplay backlight interface? What happens when dGPU
+#     is active?
+#
+
+disp() {
+	# Changes display backlight to a given level or steps up/down
+
+	INTERFACE="/sys/class/backlight/amdgpu_bl0/brightness"
+	MAX=$(cat /sys/class/backlight/amdgpu_bl0/max_brightness)
+	STEP=$((MAX/10))
+	CURRLEVEL=$(cat ${INTERFACE})
+
+	[[ ${1} =~ ^[0-9]{1,${#MAX}}$ && ! ${1} > ${MAX} ]] && \
+		LEVEL=${1}
+	[[ ${1} == "up" && ${CURRLEVEL} < ${MAX} ]] && \
+		LEVEL=$((CURRLEVEL+STEP))
+	[[ ${1} == "down" && ${CURRLEVEL} > 0 ]] && \
+		LEVEL=$((CURRLEVEL-STEP))
+
+	echo ${LEVEL}
+	echo ${LEVEL} > ${INTERFACE}
+
+	CHKLEVEL=$(cat ${INTERFACE})
+
+	notify-send "Display backlight level changed" \
+		"${CURRLEVEL} -> ${CHKLEVEL}"
+}
+
+kbd() {
+	# Changes keyboard backlight to a given level or steps up/down.
+	# param:[0-3]	set backlight level to NUM
+	# param:up	step backlight up
+	# param:down	step backlight down
+
+	INTERFACE="/sys/class/leds/asus::kbd_backlight/brightness"
+	MAX=$(cat /sys/class/leds/asus::kbd_backlight/max_brightness)
+	CURRLEVEL=$(cat ${INTERFACE})
+
+	[[ ${1} =~ ^[0-${MAX}]$ ]] && \
+		LEVEL=${1}
+	[[ ${1} == "up" && ${CURRLEVEL} < ${MAX} ]] && \
+		LEVEL=$((CURRLEVEL+1))
+	[[ ${1} == "down" && ${CURRLEVEL} > 0 ]] && \
+		LEVEL=$((CURRLEVEL-1))
+
+	echo ${LEVEL} > ${INTERFACE}
+
+	CHKLEVEL=$(cat ${INTERFACE})
+
+	notify-send "Keyboard backlight level changed" \
+		"${CURRLEVEL} -> ${CHKLEVEL}"
+}
+
+fan() {
+	# Changes fan mode to a given mode or rotates through modes.
+	# 0 = Normal/Balanced
+	# 1 = Boost
+	# 2 = Silent.
+	# param:[0-2]	Set fan mode to given mode
+	# param:NONE	Rotate through modes Balanced -> Boost -> Silent
+
+	MODELIST=("Balanced" "Boost" "Silent")
+	INTERFACE="/sys/devices/platform/asus-nb-wmi/throttle_thermal_policy"
+	CURRMODE=$(cat ${INTERFACE})
+
+	if [[ ${1} =~ ^[0-2]$ ]]; then
+		MODE=${1}
+	else
+		if [[ ${CURRMODE} == 2 ]]; then 
+		       	MODE=0
+		else
+		       	let MODE=$((CURRMODE+1))
+		fi
+	fi
+
+	echo ${MODE} > ${INTERFACE}
+
+	CHKMODE=$(cat ${INTERFACE})
+
+	notify-send "Fan mode changed" \
+		"${MODELIST[${CURRMODE}]} -> ${MODELIST[${CHKMODE}]}"
+}
+
+usage() {
+	echo "Usage: $0 [-d LEVEL|up|down] [-k LEVEL|up|down] [-f [MODE]] [-h]"
+}
+
+while getopts "d:k:f:h" ARG; do
+	case "${ARG}" in
+		d)
+			disp ${OPTARG}
+			;;
+		k)
+			kbd ${OPTARG}
+			;;
+		f)
+			fan ${OPTARG}
+			;;
+		h)
+			usage
+			exit 0
+			;;
+		*)
+			usage
+			exit 1
+			;;
+	esac
+done
+
+exit 0