minix/etc/usr/rc
David van Moolenbroek 760f3d62d7 PTY: split off from TTY
Requires recreation of /dev/tty[pq]*, /dev/pty[pq]* device nodes.

Change-Id: I0e5a28d82faa934497fd3b97d619e506bcb5f439
2014-07-28 17:05:12 +02:00

426 lines
9.8 KiB
Text

# /usr/etc/rc - continued system initialization.
RANDOM_FILE=/usr/adm/random.dat
LOCAL_FILE=/usr/etc/rc.local
ARCH="`sysenv arch`"
if [ ! "$ARCH" ]
then # Older kernels do not provide an arch sysenv variable.
# We assume we are on x86 then, as existing systems with
# kernel and userland (i.e. this script) unsynchronized
# will be x86.
ARCH=i386
fi
# Get $SERVICES_DIRS
. /etc/rc.conf
# Directories to find services in
if [ ! "$SERVICES_DIRS" ]
then SERVICES_DIRS=/usr/sbin
fi
# Booting from cd?
bootcd="`/bin/sysenv bootcd`"
case "$#:$1" in
1:autoboot)
action=start
;;
1:start|1:stop|1:down)
action=$1
;;
*) echo >&2 "Usage: $0 autoboot|start|stop|down"
exit 1
esac
if [ -f "$LOCAL_FILE" ]
then . "$LOCAL_FILE" $1
fi
disabled()
{
ifs="$IFS"; IFS=,
for skip in `sysenv disable`
do
if [ "$skip" = "$1" ]
then
IFS="$ifs"; unset ifs
return 0
fi
done
IFS="$ifs"; unset ifs
return 1
}
daemonize()
{
# Function to start a daemon, if it exists.
local IFS=':'
local name="$1"
test "$1" = tcpd && name="$2"
for dir in $PATH
do
if [ -f "$dir/$1" ]
then
# check if this service is disabled at the boot monitor.
if disabled $name; then return; fi
echo -n " $name"
"$@" &
return
fi
done
}
up()
{
# Function to dynamically start a system service
opt=""
prefix=$(expr "$1 " : '\(-\)')
if [ "$prefix" = "-" ];
then
opt=$1
shift
fi
service=$1
shift
# First check if this service is disabled at the boot monitor.
if disabled $service; then return; fi
# Service is not disabled. Try to bring it up.
found=""
for dir in $SERVICES_DIRS
do bin=$dir/$service
if [ -x $bin -a -z "$found" ]
then service $opt up $bin "$@"
echo -n " $service"
found=yes
fi
done
if [ -z "$found" ]
then echo " ($service not found in $SERVICES_DIRS)"
fi
}
get_eth_labels() {
# Filter out the non-vlan ethernet entries from inet.conf.
# Produce as output a list of "drivername_instancenr"-formatted labels.
sed 's/\008/ /g' /etc/inet.conf | \
sed -n 's/^ *eth[0-9][0-9]* *\([^ ][^ ]*\) *\([0-9][0-9]*\).*$/\1_\2/p' | \
grep -v '^vlan_'
}
# Detect expansion boards on the BeagleBone and load the proper drivers.
capemgr() {
# Probe each possible cape EEPROM slave address for a BeagleBone cape.
for slave_addr in 54 55 56 57
do
# See if there is a readable EEPROM with address ${slave_addr}.
eepromread -f /dev/i2c-3 -a 0x${slave_addr} > /dev/null 2>&1
RESULT=$?
if [ $RESULT -eq 0 ]
then
# Found an alive EEPROM. Try reading the cape name.
CAPE=`eepromread -i -f /dev/i2c-3 -a 0x${slave_addr} | \
sed -n 's/^PART_NUMBER : \(.*\)$/\1/p' | \
sed -e 's/\.*$//g'` # Strip trailing periods.
# Look for a cape specific RC script.
if [ -x /etc/rc.capes/${CAPE} ]
then
# CAT24C256 EEPROM -- all capes have this chip.
test -e /dev/eepromb3s${slave_addr} || \
(cd /dev && MAKEDEV eepromb3s${slave_addr})
up cat24c256 -dev /dev/eepromb3s${slave_addr} \
-label cat24c256.3.${slave_addr} \
-args "bus=3 address=0x${slave_addr}"
# Load the drivers for the cape and do any other configuration.
. "/etc/rc.capes/${CAPE}"
else
echo ""
echo "** UNSUPPORTED CAPE: ${CAPE}"
echo ""
fi
fi
done
}
DAEMONS=/etc/rc.daemons
case $action in
start|autoboot)
# Select console font.
test -f /etc/font && loadfont /etc/font </dev/console
# Cleanup.
rm -rf /tmp/* /usr/run/* /usr/spool/lpd/* /usr/spool/locks/*
# Start servers and drivers set at the boot monitor.
echo -n "Starting services:"
up -n random -dev /dev/random -period 3HZ
# load random number generator
if [ -f $RANDOM_FILE ]
then
cat < $RANDOM_FILE >/dev/random
# overwrite $RANDOM_FILE. We don't want to use this data again
dd if=/dev/random of=$RANDOM_FILE bs=1024 count=1 2> /dev/null
fi
# start network driver instances for all configured ethernet devices
for label in $(get_eth_labels); do
driver=$(echo $label | sed 's/\(.*\)_.*/\1/')
instance=$(echo $label | sed 's/.*_//')
eval arg=\$${label}_arg
if [ ! -z "$arg" ]; then arg=" $arg"; fi
arg="-args \"instance=$instance$arg\""
eval up $driver -label $label $arg -period 5HZ
done
if [ X`/bin/sysenv lwip` = Xyes ]
then
up lwip -script /etc/rs.inet -dev /dev/ip
else
up inet -script /etc/rs.inet -dev /dev/ip
fi
up pty -dev /dev/ptyp0
up uds -dev /dev/uds
up -n ipc
up log -dev /dev/klog
if [ $ARCH = i386 ]
then
up -n printer -dev /dev/lp -period 10HZ
# start VirtualBox time sync driver if the device is there
if grep '^[^ ]* [^ ]* 80EE:CAFE ' /proc/pci >/dev/null; then
up -n vbox -period 10HZ
fi
fi
echo .
# Network initialization.
(: </dev/tcp) 2>/dev/null && net=t # Is there a TCP/IP server?
echo -n "Starting daemons:"
daemonize update
# Ugly error message when starting cron from CD.
# (and cron unnecessary then so..)
if [ ! -f /CD ]
then daemonize cron
else mkdir /tmp/log
rm -f /var/log || true
ln -s /tmp/log /var/log || true
. /etc/rc.cd
fi
# syslogd has not been started yet
rm -f /var/run/syslogd.pid
daemonize syslogd
echo .
# i2c only supported on ARM at the moment
if [ $ARCH = earm ]
then
echo -n "Starting i2c subsystem: "
for bus in 1 2 3
do
test -e /dev/i2c-${bus} || (cd /dev && MAKEDEV i2c-${bus})
up i2c -dev /dev/i2c-${bus} -label i2c.${bus} \
-args instance=${bus}
done
echo .
BOARD_NAME=`sysenv board`
case "${BOARD_NAME}" in
ARM-ARMV7-TI-BB-WHITE)
echo "Running on a BeagleBone"
echo -n "Starting i2c device drivers: "
# start EEPROM driver for reading board info
test -e /dev/eepromb1s50 || \
(cd /dev && MAKEDEV eepromb1s50)
up cat24c256 -dev /dev/eepromb1s50 \
-label cat24c256.1.50 \
-args 'bus=1 address=0x50'
# Start TPS65217 driver for power management.
up tps65217 -label tps65217.1.24 \
-args 'bus=1 address=0x24'
# check for the presence of a display
eepromread -f /dev/i2c-2 -n > /dev/null 2>&1
RESULT=$?
if [ $RESULT -eq 0 ]
then
# start eeprom driver for reading EDID.
test -e /dev/eepromb2s50 || \
(cd /dev && MAKEDEV eepromb2s50)
up cat24c256 -dev /dev/eepromb2s50 \
-label cat24c256.2.50 \
-args 'bus=2 address=0x50'
# start frame buffer
#up fb -dev /dev/fb0 -args edid.0=cat24c256.2.50
# fb hasn't been ported to AM335X yet.
fi
# Detect expansion boards and start drivers.
capemgr
;;
ARM-ARMV7-TI-BB-BLACK)
echo "Running on a BeagleBone Black"
echo -n "Starting i2c device drivers: "
# start EEPROM driver for reading board info
test -e /dev/eepromb1s50 || \
(cd /dev && MAKEDEV eepromb1s50)
up cat24c256 -dev /dev/eepromb1s50 \
-label cat24c256.1.50 \
-args 'bus=1 address=0x50'
# Start TPS65217 driver for power management.
up tps65217 -label tps65217.1.24 \
-args 'bus=1 address=0x24'
# Start TDA19988 driver for reading EDID.
up tda19988 -label tda19988.1.3470 -args \
'cec_bus=1 cec_address=0x34 hdmi_bus=1 hdmi_address=0x70'
# start frame buffer
#up fb -dev /dev/fb0 -args edid.0=tda19988.1.3470
# fb hasn't been ported to AM335X yet.
# Detect expansion boards and start drivers.
capemgr
;;
ARM-ARMV7-TI-BBXM-GENERIC)
echo "Running on a BeagleBoard-xM"
echo -n "Starting i2c device drivers: "
# Start TPS65950 driver for power management.
up tps65950 -label tps65950.1.48 \
-args 'bus=1 address=0x48'
# Set the system time to the time in the TPS65950's RTC
readclock
# check for the presence of a display
eepromread -f /dev/i2c-3 -n > /dev/null 2>&1
RESULT=$?
if [ $RESULT -eq 0 ]
then
# start eeprom driver for reading edid
test -e /dev/eepromb3s50 || \
(cd /dev && MAKEDEV eepromb3s50)
up cat24c256 -dev /dev/eepromb3s50 \
-label cat24c256.3.50 \
-args 'bus=3 address=0x50'
# start frame buffer
up fb -dev /dev/fb0 -args edid.0=cat24c256.3.50
fi
;;
esac
echo .
fi
if [ "$net" ]
then
if [ -f /etc/rc.net ]
then
# Let a customized TCP/IP initialization script figure it out.
. /etc/rc.net
else
# Standard network daemons.
echo -n "Starting networking:"
if grep -s 'psip0.*default' /etc/inet.conf >/dev/null
then ifconfig -h 10.0.0.1
else
if [ X`/bin/sysenv lwip` = Xyes ]
then
dhcpd --lwip &
echo -n " dhcpd"
else
daemonize dhcpd
fi
fi
daemonize nonamed -L
if [ -f "$DAEMONS" ]
then . "$DAEMONS"
fi
# The last daemon has been started, so close the list:
echo .
fi
fi
if [ "$net" ]
then
# Get the nodename from the DNS and set it.
trap '' 2
intr -t 20 hostaddr -h
trap 2
fi
# Recover files being edited when the system crashed.
test -f /usr/bin/elvprsv && elvprsv /usr/tmp/elv*
# Run the daily cleanup on systems that are not on at night.
test -f /usr/etc/daily && sh /usr/etc/daily boot &
;;
stop|down)
# Save random data, if /usr is mounted rw.
if grep ' \/usr .*rw.*' /etc/mtab >/dev/null
then
if dd if=/dev/random of=$RANDOM_FILE.new bs=1024 count=1 2>/dev/null
then
mv $RANDOM_FILE.new $RANDOM_FILE
else
echo 'Failed to save random data.'
fi
fi
esac
d=
# Let packages run their own scripts
for d in /usr/local/etc/rc.d /usr/pkg/etc/rc.d
do
if [ -d "$d" -a -z "$bootcd" ]
then ( if cd $d
then
echo -n "Local packages ($action): "
for f in *
do
if [ -x "$f" ]
then echo -n "$f "
sh "$f" "$action"
fi
done
echo " done."
fi
)
fi
done