105 lines
1.9 KiB
Text
105 lines
1.9 KiB
Text
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2023 JELOS (https://github.com/JustEnoughLinuxOS)
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. /etc/profile
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# ARGS:
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#
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# 1 - property to adjust (gamma (brightness)/contrast/saturation/hue)
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# 2 - up/down or a defined value
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PROPERTY=${1}
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NEWVAL=${2}
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# Command usage:
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# drm_tool set /dev/dri/card0 133 saturation value
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# Define the basics
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MIN=1
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MAX=100
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STEP=1
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if [ ! -e /dev/dri/card0 ]
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then
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echo "ERROR: No display found."
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exit 1
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fi
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log() {
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$DEBUG && echo "Info: ${*}" >>/var/log/display.log
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}
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getValue() {
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MYVAL=$(get_setting display.${1})
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if [ -n "${MYVAL}" ]
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then
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if [ "${MYVAL}" > "${MAX}" ]
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then
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MYVAL=${MAX}
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elif [ "${MYVAL}" < "${MIN}" ]
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then
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MYVAL=${MIN}
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fi
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echo ${MYVAL}
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else
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echo $(drm_tool list 2>/dev/null | sed -n '/Connector: '${CONNECTOR}'/,$p' | awk '/'${1}'/ {print $5}')
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fi
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}
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setValue() {
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log "Set (${1}: ${2})"
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drm_tool set /dev/dri/card0 ${CONNECTOR} ${1} ${2} 2>/dev/null
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if [ $? = 0 ]
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then
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set_setting display.${1} ${2}
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fi
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}
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stepUp() {
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LASTVAL=$(getValue ${PROPERTY})
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NEWVAL=$(expr ${LASTVAL} + 1)
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log "Step up (${PROPERTY}: ${NEWVAL})"
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setValue ${PROPERTY} ${NEWVAL}
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}
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stepDown() {
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LASTVAL=$(getValue ${PROPERTY})
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NEWVAL=$(expr ${LASTVAL} - 1)
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log "Step down (${PROPERTY}: ${NEWVAL})"
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setValue ${PROPERTY} ${NEWVAL}
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}
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restoreSettings() {
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for PROPERTY in brightness contrast saturation hue
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do
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RESTVAL=$(getValue ${PROPERTY})
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setValue ${PROPERTY} ${RESTVAL}
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done
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}
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CONNECTOR=$(drm_tool list | grep -B1 "mode.*:" | awk '/Connector/ {print $2}')
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case ${NEWVAL} in
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"up")
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stepUp
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;;
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"down")
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stepDown
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;;
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"restore")
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restoreSettings
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;;
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*)
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if [[ "${NEWVAL}" =~ ^[0-9] ]] && \
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[ "${NEWVAL}" -le "${MAX}" ] && \
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[ "${NEWVAL}" -ge "${MIN}" ]
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then
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setValue ${PROPERTY} ${NEWVAL}
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else
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echo "Error: Invalid value."
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exit 1
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fi
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;;
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esac
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