48 lines
1.3 KiB
Bash
48 lines
1.3 KiB
Bash
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#0=0db, 1=6.6db, 2=13dB, 3=20db
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amixer cset -c 0 name="ADC MIC Group 2 Left Volume" 3
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amixer cset -c 0 name="ADC MIC Group 3 Left Volume" 3
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amixer cset -c 0 name="ADC MIC Group 2 Right Volume" 3
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amixer cset -c 0 name="ADC MIC Group 3 Right Volume" 3
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#12=0dB 18=9db
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amixer cset -c 0 name="ADC ALC Group 2 Left Volume" 12
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amixer cset -c 0 name="ADC ALC Group 3 Left Volume" 12
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amixer cset -c 0 name="ADC ALC Group 2 Right Volume" 12
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amixer cset -c 0 name="ADC ALC Group 3 Right Volume" 12
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#loop back gain
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amixer cset -c 0 name="ADC ALC Group 1 Left Volume" 18
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# lineout gain
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#0=490mv，1=890mv
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amixer cset -c 0 name='DAC LINEOUT Right Volume' 2
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amixer cset -c 0 name='DAC LINEOUT Left Volume' 2
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amixer cset -c 0 name='DAC HPMIX Left Volume' 1
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amixer cset -c 0 name='DAC HPMIX Right Volume' 1
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vol=80
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if [ -f "/userdata/cfg/volume.conf" ]; then
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vol=`cat /userdata/cfg/volume.conf`
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echo "cat volume.conf $vol"
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if [ -z "$vol" ]; then
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echo "vol is empty"
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vol=80
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fi
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if [ -n "$vol" ]; then
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echo "vol is not empty,vol=$vol"
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fi
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if [ $vol -gt 80 ]; then
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echo "vol >80 force vol=80"
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echo 80 > /userdata/cfg/volume.conf
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vol=80
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fi
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else
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echo "no volume.conf file"
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echo 80 > /userdata/cfg/volume.conf
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fi
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echo "===!!!vol=$vol"
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amixer set Master Playback $vol
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