91 lines
2.8 KiB
Bash
Executable File
91 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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#
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# Reads the signal strength from a DVB-c/s/t tuner
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#
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# (c) 2009 i.dobson@planet-ian.com
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#
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# 24.11.2009 Version 1.1 added support for multiple tuners
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# 22.11.2009 Version 1.0 added check that femon iinstalled
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# 21.11.2009 Version 0.9 added adapter number
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# 20.11.2009 Version 0.8 first version
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#
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# Magic markers (optional):
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#%# family=auto
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#%# capabilities=autoconf suggest
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#Starting point for tuner to watch
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Tuner=0
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case $1 in
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autoconf|detect)
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if ! which femon >/dev/null; then
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echo "no (femon not installed)"
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elif [ -e "/dev/dvb/adapter$Tuner/" ]; then
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echo yes
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else
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echo "no (dvb tuner $Tuner not found)"
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fi
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exit 0
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;;
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config)
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echo "graph_title DVB signal strength"
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echo 'graph_args --base 1000 -l 0'
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echo 'graph_vlabel Signal Strength %'
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echo 'graph_category tv'
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echo 'graph_scale no'
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while [ -e /dev/dvb/adapter$Tuner/ ]; do
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Tuner=$[$Tuner+1]
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done
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TunerLoop=0
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while [ $TunerLoop -lt $Tuner ] ; do
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echo "signal$TunerLoop.label Signal strength for tuner $TunerLoop"
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echo "signal$TunerLoop.draw LINE1"
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echo "signal$TunerLoop.min 0"
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TunerLoop=$[$TunerLoop+1]
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done
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TunerLoop=0
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while [ $TunerLoop -lt $Tuner ] ; do
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echo "snr$TunerLoop.label Signal to noise for tuner $TunerLoop"
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echo "snr$TunerLoop.draw LINE1"
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echo "snr$TunerLoop.min 0"
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TunerLoop=$[$TunerLoop+1]
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done
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TunerLoop=0
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while [ $TunerLoop -lt $Tuner ] ; do
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echo "ber$TunerLoop.label Bit error rate for tuner $TunerLoop"
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echo "ber$TunerLoop.draw LINE1"
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echo "ber$TunerLoop.min 0"
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echo "ber$TunerLoop.max 200"
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TunerLoop=$[$TunerLoop+1]
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done
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TunerLoop=0
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while [ $TunerLoop -lt $Tuner ] ; do
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echo "unc$TunerLoop.label Uncorrectable errors for tuner $TunerLoop"
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echo "unc$TunerLoop.draw LINE1"
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echo "unc$TunerLoop.min 0"
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echo "unc$TunerLoop.max 200"
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TunerLoop=$[$TunerLoop+1]
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done
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exit 0;;
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esac
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echo "" > /tmp/dvb-signal.text
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echo "" > /tmp/dvb-signal1.text
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Tuner=0
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while [ -e /dev/dvb/adapter$Tuner/ ] ; do
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check=`femon -c 1 -a $Tuner | grep signal `
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echo $check $Tuner| awk '{printf ("signal%.0f.value %.1f\nsnr%.0f.value %.1f\nber%.0f.value %.2f\nunc%.0f.value %.4f\n#raw values Tuner %.0f %.0f %.0f %.0f %.0f \n",$17,strtonum("0x"$5)/655,$17,strtonum("0x"$8)/655,$17,strtonum("0x"$11),$17,strtonum("0x"$14),$17,strtonum("0x"$5),strtonum("0x"$8),$11,$14)}' >> /tmp/dvb-signal.text
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echo $check >> /tmp/dvb-signal1.text
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Tuner=$[$Tuner+1]
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done
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cat /tmp/dvb-signal.text | grep signal
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cat /tmp/dvb-signal.text | grep snr
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cat /tmp/dvb-signal.text | grep ber
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cat /tmp/dvb-signal.text | grep unc
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cat /tmp/dvb-signal.text | grep raw
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exit 0
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