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pru: Update installation and flash scripts

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Update the scripts used to install and "flash" the pru
micro-controller code.  Also, add a "flash" script for the linux
micro-controller code.  This makes it easier to install Klipper on a
Beaglebone board that uses a Replicape.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-08-14 11:44:06 -04:00
parent 16d2ec3a90
commit 5a85c1667a
5 changed files with 126 additions and 29 deletions
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103
scripts/klipper-pru-start.sh
View file

@ -14,23 +14,98 @@
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
DESC="klipper_pru startup"
NAME="klipper_pru"
KLIPPER_HOST_MCU=/usr/local/bin/klipper_mcu
KLIPPER_HOST_ARGS="-w -r"
PIDFILE=/var/run/klipper_mcu.pid
. /lib/lsb/init-functions
pru_stop()
{
# Shutdown existing Klipper instance (if applicable). The goal is to
# put the GPIO pins in a safe state.
if [ -c /dev/rpmsg_pru30 ]; then
log_daemon_msg "Attempting to shutdown PRU..."
set -e
( echo "FORCE_SHUTDOWN" > /dev/rpmsg_pru30 ) 2> /dev/null || ( log_action_msg "Firmware busy! Please shutdown Klipper and then retry." && exit 1 )
sleep 1
( echo "FORCE_SHUTDOWN" > /dev/rpmsg_pru30 ) 2> /dev/null || ( log_action_msg "Firmware busy! Please shutdown Klipper and then retry." && exit 1 )
sleep 1
set +e
fi
log_daemon_msg "Stopping pru"
echo 4a334000.pru0 > /sys/bus/platform/drivers/pru-rproc/unbind
echo 4a338000.pru1 > /sys/bus/platform/drivers/pru-rproc/unbind
}
pru_start()
{
if [ -c /dev/rpmsg_pru30 ]; then
pru_stop
sleep 1
fi
log_daemon_msg "Starting pru"
echo 4a334000.pru0 > /sys/bus/platform/drivers/pru-rproc/bind
echo 4a338000.pru1 > /sys/bus/platform/drivers/pru-rproc/bind
}
mcu_host_stop()
{
# Shutdown existing Klipper instance (if applicable). The goal is to
# put the GPIO pins in a safe state.
if [ -c /tmp/klipper_host_mcu ]; then
log_daemon_msg "Attempting to shutdown host mcu..."
set -e
( echo "FORCE_SHUTDOWN" > /tmp/klipper_host_mcu ) 2> /dev/null || ( log_action_msg "Firmware busy! Please shutdown Klipper and then retry." && exit 1 )
sleep 1
( echo "FORCE_SHUTDOWN" > /tmp/klipper_host_mcu ) 2> /dev/null || ( log_action_msg "Firmware busy! Please shutdown Klipper and then retry." && exit 1 )
sleep 1
set +e
fi
log_daemon_msg "Stopping klipper host mcu" $NAME
killproc -p $PIDFILE $KLIPPER_HOST_MCU
}
mcu_host_start()
{
[ -x $KLIPPER_HOST_MCU ] || return
if [ -c /tmp/klipper_host_mcu ]; then
mcu_host_stop
fi
log_daemon_msg "Starting klipper MCU" $NAME
start-stop-daemon --start --quiet --exec $KLIPPER_HOST_MCU \
--background --pidfile $PIDFILE --make-pidfile \
-- $KLIPPER_HOST_ARGS
log_end_msg $?
}
case "$1" in
start) log_daemon_msg "Starting klipper_pru" $NAME
# Enable ADC module
echo 'BB-ADC' > /sys/devices/platform/bone_capemgr/slots
# Start PRU firmware
if [ ! -c /dev/rpmsg_pru30 ]; then
rmmod -f pru_rproc
modprobe pru_rproc
fi
;;
stop|restart|reload|force-reload|status)
;;
*) log_action_msg "Usage: /etc/init.d/klipper_pru {start|stop|status|restart|reload|force-reload}"
exit 2
;;
start)
pru_start
mcu_host_start
;;
stop)
pru_stop
mcu_host_stop
;;
restart)
$0 stop
$0 start
;;
reload|force-reload)
log_daemon_msg "Reloading configuration not supported" $NAME
log_end_msg 1
;;
status)
status_of_proc -p $PIDFILE $KLIPPER_HOST_MCU $NAME && exit 0 || exit $?
;;
*) log_action_msg "Usage: /etc/init.d/klipper {start|stop|status|restart|reload|force-reload}"
exit 2
;;
esac
exit 0