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#!/bin/bash
VERSION=20240125.01
_conffile='/etc/gpd-winmax2_2023-sleep-wakeuptriggers.conf'
# gpd-winmax2_2023-fix-sleep-wakeuptriggers -- Switches off wakeup triggers that prevent the GPD Win Max 2 (2023) laptops from sleeping reliably. For background, see https://gitlab.freedesktop.org/drm/amd/-/issues/3073#note_2237586.
# Copyright (C) 2024+ @dreieck
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
_msg() {
printf '%s\n' "$@"
}
_errmsg() {
_msg "$@" > /dev/stderr
}
_version() {
_msg "${VERSION}"
}
_check_conf_file() {
if ! [ -r "${_conffile}" ]; then
_errmsg "File '${_conffile}' does not exist or is not readable".
return 1
fi
}
_load_conf_file() {
. "${_conffile}"
}
_check_and_load_conf_file() {
if _check_conf_file; then
. "${_conffile}"
else
return 1
fi
}
_start() {
local _dev _wakeupfile _exitcode _thisexitcode
_exitcode=0
_msg "> Switching off wakeup triggers"
_check_and_load_conf_file && {
for _dev in "${NOWAKEUPDEVS[@]}"; do
if [ -e "${_dev}/power/wakeup" ] && [ -w "${_dev}/power/wakeup" ]; then
_wakeupfile="${_dev}/power/wakeup"
elif [ -e "${_dev}/wakeup" ] && [ -w "${_dev}/wakeup" ]; then
_wakeupfile="${_dev}/wakeup"
else
_errmsg "\`-> WARNING: '${_dev}/' contains no 'power/wakeup' or 'wakeup' file with write permission!"
continue
fi
_msg "\`-> ${_dev}"
printf '%s\n' 'disabled' > "${_wakeupfile}"
_thisexitcode="$?"
if [ "${_exitcode}" -eq 0 ]; then ## Preserve a non-zero $_exitcode
_exitcode="${_thisexitcode}"
fi
done
}
return "${_exitcode}"
}
_stop() {
local _dev _wakeupfile _exitcode _thisexitcode
_exitcode=0
_msg "> Switching on wakeup triggers"
_check_and_load_conf_file && {
for _dev in "${NOWAKEUPDEVS[@]}"; do
if [ -e "${_dev}/power/wakeup" ] && [ -w "${_dev}/power/wakeup" ]; then
_wakeupfile="${_dev}/power/wakeup"
elif [ -e "${_dev}/wakeup" ] && [ -w "${_dev}/wakeup" ]; then
_wakeupfile="${_dev}/wakeup"
else
_errmsg "\`-> WARNING: '${_dev}/' contains no 'power/wakeup' or 'wakeup' file with write permission!"
continue
fi
_msg "\`-> ${_dev}"
printf '%s\n' 'enabled' > "${_wakeupfile}"
_thisexitcode="$?"
if [ "${_exitcode}" -eq 0 ]; then ## Preserve a non-zero $_exitcode
_exitcode="${_thisexitcode}"
fi
done
}
return "${_exitcode}"
}
_help() {
_msg "Usage:"
_msg " $0 [start|stop|restart|reload|status|-h|--help|-V|--version]"
_msg ""
_msg "> 'start' disables wakeup triggers of devices defined in"
_msg " 'NOWAKEUPDEVS' bash array in '${_conffile}'."
_msg "> 'stop' enables wakeup triggers of devices defined in"
_msg " 'NOWAKEUPDEVS' bash array in '${_conffile}'."
}
if [ "$#" -ne 1 ]; then
_errmsg "$0: Error: Exactly one argument required."
_errmsg ''
_errmsg "`_help`"
exit 11
fi
case "$1" in
'start')
_start
;;
'stop')
_stop
;;
'restart'|'reload')
_stop
_start
;;
'status')
_msg "unknown"
;;
'-V'|'--version')
_version
;;
'-h'|'--help')
_help
;;
*)
_errmsg "$0: Error: Unsupported action '$1'."
_errmsg ''
_errmsg "`_help`"
exit 12
;;
esac
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