#!/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: $0 " exit 1 fi if grep -q ON "$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 "$1" in init) cat /dev/null > /var/run/stereo-state chgrp plugdev /var/run/stereo-state chmod 664 /var/run/stereo-state ;; mute) send KEY_MUTE ;; vol+) send KEY_VOLUMEUP ;; vol-) send KEY_VOLUMEDOWN ;; off) off ;; on) on ;; toggle) if [ "$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