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#!/bin/sh
# IBM specific hack to disable/enable bluetooth.
# TODO: Doesn't the working USB suspend/resume functionality
# make this code more or less obsolete?
. "${PM_FUNCTIONS}"
[ -f /proc/acpi/ibm/bluetooth ] || exit $NA
suspend_bluetooth()
{
if grep -q enabled /proc/acpi/ibm/bluetooth; then
savestate ibm_bluetooth enable
echo disable > /proc/acpi/ibm/bluetooth
# wait for up to 2 seconds for the module to actually get
# unused
TIMEOUT=20
while [ $TIMEOUT -ge 0 ]; do
[ `cat /sys/module/btusb/refcnt` = 0 ] && break
TIMEOUT=$((TIMEOUT-1))
sleep 0.1
done
else
savestate ibm_bluetooth disable
fi
}
resume_bluetooth()
{
state_exists ibm_bluetooth || return
restorestate ibm_bluetooth > /proc/acpi/ibm/bluetooth
}
case "$1" in
hibernate|suspend)
suspend_bluetooth
;;
thaw|resume)
resume_bluetooth
;;
*) exit $NA
;;
esac
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