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Initial version

This commit is contained in:
Kristian Lyngstl 2010-12-13 20:06:58 +01:00 committed by Steve Schnepp
parent 2b0c11bf55
commit c0c127c96c

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plugins/other/denon_x311_volume Executable file
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#!/usr/bin/gawk -f
# Denon x311 volume-plugin for munin
# Copyright (C) 2010 Kristian Lyngstol
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# This plugin asks a Denon (?) receiver over "telnet" what volume it's
# running at and parses the result. It's tested with Denon AVR 4311, but I
# suppose it works with the 3311 too, possibly more. It uses 192.168.0.60
# by default - because I'm lazy.
### Magic markers
# #%# family=manual
# #%# capabilities=
#
# Even if we _could_ do autoconf on ENVIRON["ip"], it's hazardous as you
# have little control over timeouts and risk hanging around annoying the
# user.
BEGIN {
if (ARGV[1] == "config") {
print "graph_title Denon AVR-4311 Volume"
print "graph_category funkytown"
print "volume.label Volume"
print "volume.type GAUGE"
exit 0
}
if (ENVIRON["ip"] == "") {
ip="denon.kristian.int"
} else {
ip=ENVIRON["ip"]
}
Service="/inet/tcp/0/" ip "/23"
# The AVR-4311 uses just a \r as line/record separator (annoying as
# heck).
RS="\r"
# MV? asks for volume. Returned in MVXXZ - the z is optional
print "MV?\r" |&Service
Service |& getline
close(Service)
gsub("^MV","")
# 445 == 44.5. 44 = 44. So only divide by ten if more than 2
# characters were returned. Note that it also returns 005 for 0.5
if (length >2) {
n=$0/10
} else {
n=$0
}
# 99 is "0" and 99.5 is "0.5" (somewhat audible). I shift
# everything by 1 because I prefer my lists to start at 0, not
# -1....
if (n==99 || n == 99.5) {
n-=99
} else {
n+=1
}
printf "volume.value %0.1f\n",n
}