75 lines
1.8 KiB
Bash
Executable File
75 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# There is NO error checking in this program - you can mess up pins big time if you want.
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# gpio mode pin inputtype
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# gpio read pin
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# gpio write pin level
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# gpio pwm pin level
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# gpio close pin
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declare -A pins
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# Map the GPIO names to actual underlying IO numbers
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pins=(["0"]="73" ["1"]="72" ["2"]="71" ["3"]="70" ["4"]="194" ["5"]="195" ["6"]="67" ["7"]="1")
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usage() {
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echo ""
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echo " gpiohb mode {pin} {in|out}"
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echo " gpiohb read {pin}"
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echo " gpiohb write {pin} {0|1}"
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echo " gpiohb wfi {pin} {rising|falling|both|none}"
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#echo " gpiohb pwm {pin} {0-1023}"
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echo " gpiohb close {pin}"
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echo ""
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}
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while [ "$1" != "" ]; do
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case $1 in
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-h | --help | -?)
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usage
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exit
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;;
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mode)
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echo $1 $2 $3
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if [ "$3" != "out" ] ; then
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$3="in"
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fi
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pin=${pins[$2]}
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echo $pin > /sys/class/gpio/export
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echo $3 > /sys/class/gpio/gpio$pin/direction
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exit
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;;
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read)
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pin=${pins[$2]}
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cat /sys/class/gpio/gpio$pin/value
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exit
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;;
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write)
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pin=${pins[$2]}
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echo $3 > /sys/class/gpio/gpio$pin/value
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exit
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;;
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wfi)
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pin=${pins[$2]}
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echo $3 > /sys/class/gpio/gpio$pin/edge
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exit
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;;
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pwm)
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# Not implemented yet....
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pin=${pins[$2]}
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exit
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;;
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close)
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pin=${pins[$2]}
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echo $pin > /sys/class/gpio/unexport
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exit
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;;
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*)
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echo "ERROR: unknown parameter \"$PARAM\""
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usage
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exit 1
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;;
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esac
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shift
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done
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