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#!/bin/sh
grep uio_pruss /proc/modules 2>&1 >/dev/null
if test $? -ne 0 ; then
echo "Loading UIO_PRUSS driver module" ;
modprobe uio_pruss ;
fi
grep debugfs /proc/mounts 2>&1 >/dev/null
if test $? -ne 0 ; then
echo "Mounting debugfs filesystem" ;
/bin/mount -t debugfs none /sys/kernel/debug ;
fi
export VER=`uname -r`
if test "$VER" = "3.2.0sjl+" ; then
export KERNEL=ok
elif test "$VER" = "3.2.16+" ; then
export KERNEL=ok
elif test "$VER" = "3.2.16sjl+" ; then
export KERNEL=ok
fi
if test "$KERNEL" = "ok" ; then
echo "Configuring PWM outputs"
for i in ehrpwm.2\:0 ehrpwm.2\:1 ehrpwm.1\:0 ; do
echo 1 > /sys/class/pwm/$i/request ;
echo 1 > /sys/class/pwm/$i/period_freq ;
echo 50 > /sys/class/pwm/$i/duty_percent ;
echo 1 > /sys/class/pwm/$i/polarity ;
echo 1 > /sys/class/pwm/$i/run ;
done ;
echo 1 > /sys/class/pwm/ehrpwm.2\:0/period_freq ;
echo 2 > /sys/class/pwm/ehrpwm.1\:0/period_freq ;
echo 50 > /sys/class/pwm/ehrpwm.1\:0/duty_percent ;
echo 33 > /sys/class/pwm/ehrpwm.2\:1/duty_percent ;
echo 66 > /sys/class/pwm/ehrpwm.2\:0/duty_percent ;
echo "Turning BEBOPR I/O power on" ;
# IO_PWR_ON = R9 / GPIO1[6] / gpio38 / gpmc_ad6
# !IO_PWR_ON = R8 / GPIO1[2] / gpio34 / gpmc_ad2
for i in 38 34 ; do
echo "$i" > /sys/class/gpio/export ;
echo "out" > /sys/class/gpio/gpio$i/direction ;
echo "0" > /sys/class/gpio/gpio$i/value ;
done ;
echo "1" > /sys/class/gpio/gpio38/value ;
fi