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|
#!/bin/sh
# stereo
#
# wrapper script to control my Denon stereo with IR
# Copyright (c) 2012 Peter Palfrader
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
set -e
STATEFILE=/var/run/stereo-state
TIMEOUT=30
DEBUG=0
if [ "$#" -lt 1 ]; then
echo 2>&1 "Usage: $0 <command>"
exit 1
fi
if grep -q ON "$STATEFILE"; then
power=1
else
power=0
fi
send() {
irsend set_transmitters 1
irsend send_once denon "$1"
}
toggle_power() {
send KEY_POWER
}
force_status_update_off() {
cat /dev/null > "$STATEFILE"
}
off() {
if [ "$power" -gt 0 ]; then
toggle_power
force_status_update_off
else
echo "Already off"
fi
}
on() {
if [ "$power" -lt 1 ]; then
toggle_power
echo ON > "$STATEFILE"
else
echo "Already on"
fi
}
used() {
if grep -q RUNNING /proc/asound/card*/*p/*/status; then
return 0
else
return 1
fi
}
tch() {
touch "$STATEFILE"
}
case "$1" in
init)
cat /dev/null > /var/run/stereo-state
chgrp plugdev /var/run/stereo-state
chmod 664 /var/run/stereo-state
;;
mute)
send KEY_MUTE
tch
;;
vol+)
send KEY_VOLUMEUP
;;
vol-)
send KEY_VOLUMEDOWN
;;
off)
off
;;
on)
on
;;
toggle)
if [ "$power" -gt 0 ]; then
off
else
on
fi
;;
status)
if [ "$power" -gt 0 ]; then
echo "on; last used: $(stat -c%y "$STATEFILE")"
else
echo off
fi
;;
used)
if used; then
exit 0
else
exit 1
fi
;;
touch)
tch
;;
# runs out of cron every 5 minutes or so
# */5 * * * * bin/stereo off-if-idle
off-if-idle)
if [ "$power" -gt 0 ]; then
if used; then
tch
[ $DEBUG -lt 1 ] || echo "in use"
else
if find "$STATEFILE" -mmin -"$TIMEOUT" | grep -q .; then
[ $DEBUG -lt 1 ] || echo "recently used"
else
off
fi
fi
else
[ $DEBUG -lt 1 ] || echo "is off"
fi
;;
force-status-off)
force_status_update_off
;;
*)
echo >&2 "Unknown command $1"
exit 1
esac
|
