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# -*- shell-script -*-
_log_msg()
{
if [ "$quiet" = "y" ]; then return; fi
echo "$@"
}
log_success_msg()
{
_log_msg "Success: $@"
}
log_failure_msg()
{
_log_msg "Failure: $@"
}
log_warning_msg()
{
_log_msg "Warning: $@"
}
log_begin_msg()
{
_log_msg "Begin: $@ ..."
}
log_end_msg()
{
_log_msg "Done."
}
# update_progress() # ToDo: NOP placeholder... what else for usplash?
# {
# :
# }
panic()
{
echo $@
FS1='(initramfs) ' exec /bin/sh </dev/console >/dev/console 2>&1
}
render()
{
eval "echo -n \${$@}"
}
set_initlist()
{
unset initlist
for si_x in ${initdir}/*; do
if [ ! -x ${si_x} ]; then
continue
fi
initlist="${initlist} $(basename ${si_x})"
done
}
reduce_satisfied()
{
deplist="$(render array_${1})"
for rs_x in ${runlist}; do
pop_list_item ${rs_x} ${deplist}
deplist=${tmppop}
done
eval array_${1}=\"${deplist}\"
}
get_prereqs()
{
set_initlist
for gp_x in ${initlist}; do
tmp=$(${initdir}/${gp_x} prereqs)
eval array_${gp_x}=\"${tmp}\"
done
}
count_unsatisfied()
{
set - ${@}
return ${#}
}
# Removes $1 from initlist
pop_list_item()
{
item=${1}
shift
set - ${@}
unset tmppop
# Iterate
for pop in ${@}; do
if [ ${pop} = ${item} ]; then
continue
fi
tmppop="${tmppop} ${pop}"
done
}
# This function generates the runlist, so we clear it first.
reduce_prereqs()
{
unset runlist
set_initlist
set - ${initlist}
i=$#
# Loop until there's no more in the queue to loop through
while [ ${i} -ne 0 ]; do
oldi=${i}
for rp_x in ${initlist}; do
reduce_satisfied ${rp_x}
count_unsatisfied $(render array_${rp_x})
cnt=${?}
if [ ${cnt} -eq 0 ]; then
runlist="${runlist} ${rp_x}"
pop_list_item ${rp_x} ${initlist}
initlist=${tmppop}
i=$((${i} - 1))
fi
done
if [ ${i} -eq ${oldi} ]; then
echo "PANIC: Circular dependancy. Exiting." >&2
exit 1
fi
done
}
call_scripts()
{
for cs_x in ${runlist}; do
${initdir}/${cs_x}
done
}
run_scripts()
{
initdir=${1}
get_prereqs
reduce_prereqs
call_scripts
}
ide_boot_events() {
[ -e /proc/ide ] || return
modprobe -q ide-generic
for drive in /proc/ide/*; do
[ -e ${drive}/media ] || continue
# nothing to do if the device has already been took in charge
unit=${drive#/proc/ide/}
[ -d /sys/block/$unit ] && continue
read media < $drive/media
case "$media" in
disk) MODULE=ide-disk ;;
cdrom) MODULE=ide-cd ;;
tape) MODULE=ide-tape ;;
floppy) MODULE=ide-floppy ;;
*) MODULE=ide-generic ;;
esac
modprobe -q ${MODULE}
done
}
scsi_boot_events()
{
[ -e /sys/bus/scsi/devices/ ] || return
for device in /sys/bus/scsi/devices/*; do
read media < ${device}/type
case "$media" in
0) modprobe -q sd_mod;
esac
done
}
load_modules()
{
depmod -a
# Load custom modules first
if [ -e /conf/modules ]; then
cat /conf/modules | while read m; do
if [ -z "$m" ] \
|| expr "$m" : "#" >/dev/null \
|| expr "$m" : "[ \t]+#?" > /dev/null
then
continue;
else
modprobe -q $m
fi
done
fi
for x in /sys/bus/pci/devices/*; do
if [ -e ${x}/modalias ]; then
modprobe -q $(cat ${x}/modalias)
fi
done
# Give the USB bus a moment to catch up
sleep 2
for x in /sys/bus/usb/devices/*; do
if [ -e ${x}/modalias ]; then
modprobe -q $(cat ${x}/modalias)
fi
done
ide_boot_events
scsi_boot_events
}
parse_numeric() {
case $1 in
*:*)
minor=${1#*:}
major=${1%:*}
;;
*)
minor=$((0x${1#??}))
major=$((0x${1%??}))
;;
esac
mknod /dev/root b ${major} ${minor}
}
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