[Pm-utils] [Patch] TuxOnIce pm/functions patch draft.

[Victor Lowther]

On Jan 27, 2008 8:34 PM, Nigel Cunningham <nigel at nigel.suspend2.net> wrote:
> Hi again.
>
> Here is a draft patch for adding TuxOnIce support to the pm/defaults and
> pm/functions files. I'm calling it a draft because I want your feedback
> on whether it's the right sort of approach. I'm not really keen on
> adding a variable per sysfs entry, and so have only added the most
> frequently used ones in this iteration.

I would move all the tuxonice specific stuff out of do_hibernate and
into its own function like so:

do_tuxonice_hibernate() {
        echo "${TUXONICE_USERUI}" > /sys/power/tuxonice/user_interface/program
        if [ -n "${TUXONICE_USERUI}" ] ; then
                echo "1" > /sys/power/tuxonice/user_interface/enabled
        else
                echo "0" > /sys/power/tuxonice/user_interface/enabled
        fi

        echo "1" > /sys/power/tuxonice/userui_interface/enabled
        echo "${TUXONICE_EXTRA_PAGES_ALLOWANCE}" >
/sys/power/tuxonice/extra_pages_allowance
        echo "${TUXONICE_USERUI_ENABLE_ESCAPE}" >
/sys/power/tuxonice/user_interface/enable_escape

        echo "${TUXONICE_COMPRESSION_ALGORITHM}" >
/sys/power/tuxonice/compression/algorithm
        if [ -n "${TUXONICE_COMPRESSION_ALGORITHM}" ] ; then
                echo "1" > /sys/power/tuxonice/compression/enabled
        else
                echo "0" > /sys/power/tuxonice/compression/enabled
        fi

        # TuxOnIce has a separate entry for rebooting, with rebooting
        # trumping powering down. We therefore explicitly disable
        # rebooting when the user selects a powerdown method.
        case "${HIBERNATE_MODE}" in
                "platform")
                        echo "0" > /sys/power/tuxonice/reboot
                        echo "4" > /sys/power/tuxonice/powerdown_method
                        ;;
                "shutdown")
                        echo "0" > /sys/power/tuxonice/reboot
                        echo "5" > /sys/power/tuxonice/powerdown_method
                        ;;
                "reboot")
                        echo "1" > /sys/power/tuxonice/reboot
                        ;;
        esac
        echo "anything" > /sys/power/tuxonice/do_hibernate
}

do_hibernate()
{
        if [ -d /sys/power/tuxonice ]; then
                do_tuxonice_hibernate
        else
                echo -n "${HIBERNATE_MODE}" > /sys/power/disk
                echo -n "disk" > /sys/power/state
        fi
}

Helps keep mental pollution down, ya know. :)

> Victor, I'm not ignoring your comment about hybrid support. I'd just
> already written the lines when your email came, and thought it might
> never-the-less help to have on record how to do hybrid with TuxOnIce.
> (This is only an RFC anyway).

Understood. :)

> Regards,
>
> Nigel
>
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