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#!/bin/sh
# disable processing of 90chvt and 99video.
# s2ram and s2disk handle all this stuff internally.
uswsusp_hooks()
{
disablehook 99video "disabled by uswsusp"
}
# Since we disabled 99video, we need to take responsibility for proper
# quirk handling. s2ram handles all common video quirks internally,
# so all we have to do is translate the HAL standard options to s2ram options.
uswsusp_get_quirks()
{
OPTS=""
ACPI_SLEEP=0
for opt in $PM_CMDLINE; do
case "${opt##--quirk-}" in # just quirks, please
dpms-on) ;; # no-op
dpms-suspend) ;; # no-op
radeon-off) OPTS="$OPTS --radeontool" ;;
reset-brightness) ;; # no-op
s3-bios) ACPI_SLEEP=$(($ACPI_SLEEP + 1)) ;;
s3-mode) ACPI_SLEEP=$(($ACPI_SLEEP + 2)) ;;
vbe-post) OPTS="$OPTS --vbe_post" ;;
vbemode-restore) OPTS="$OPTS --vbe_mode" ;;
vbestate-restore) OPTS="$OPTS --vbe_save" ;;
vga-mode3) ;; # no-op
save-pci) OPTS="$OPTS --pci_save" ;;
none) QUIRK_NONE="true" ;;
*) continue ;;
esac
done
[ $ACPI_SLEEP -ne 0 ] && OPTS="$OPTS --acpi_sleep $ACPI_SLEEP"
# if we were told to ignore quirks, do so.
# This is arguably not the best way to do things, but...
[ "$QUIRK_NONE" = "true" ] && OPTS=""
}
# Since we disabled 99video, we also need to handle displaying
# help info for the quirks we handle.
uswsusp_help()
{
echo # first echo makes it look nicer.
echo "s2ram video quirk handler options:"
echo
echo " --quirk-radeon-off"
echo " --quirk-s3-bios"
echo " --quirk-s3-mode"
echo " --quirk-vbe-post"
echo " --quirk-vbemode-restore"
echo " --quirk-vbestate-restore"
echo " --quirk-save-pci"
echo " --quirk-none"
}
# This idiom is used for all sleep methods. Only declare the actual
# do_ method if:
# 1: some other sleep module has not already done so, and
# 2: this sleep method can actually work on this system.
#
# For suspend, if SUSPEND_MODULE is set then something else has already
# implemented do_suspend. We could just check to see of do_suspend was
# already declared using command_exists, but using a dedicated environment
# variable makes it easier to debug when we have to know what sleep module
# ended up claiming ownership of a given sleep method.
if [ -z "$SUSPEND_MODULE" ] && command_exists s2ram && \
( grep -q mem /sys/power/state || \
( [ -c /dev/pmu ] && pm-pmu --check; ); ); then
SUSPEND_MODULE="uswsusp"
do_suspend()
{
uswsusp_get_quirks
s2ram --force $OPTS
}
if [ "$METHOD" = "suspend" ]; then
add_before_hooks uswsusp_hooks
add_module_help uswsusp_help
fi
fi
if [ -z "$HIBERNATE_MODULE" ] && \
[ -f /sys/power/disk ] && \
grep -q disk /sys/power/state && \
[ -c /dev/snapshot ] &&
command_exists s2disk; then
HIBERNATE_MODULE="uswsusp"
do_hibernate()
{
s2disk
}
fi
if [ -z "$SUSPEND_HYBRID_MODULE" ] &&
grep -q mem /sys/power/state && \
command_exists s2both && \
check_hibernate; then
SUSPEND_HYBRID_MODULE="uswsusp"
do_suspend_hybrid()
{
uswsusp_get_quirks
s2both --force $OPTS
}
if [ "$METHOD" = "suspend_hybrid" ]; then
add_before_hooks uswsusp_hooks
add_module_help uswsusp_help
fi
fi
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