#!/bin/sh
#
# "Power off" the device.
#
# NOTE: This doesn't actually manage a full poweroff (which I think our
# hardware might not support) on a GFiber TV/Storage device.  It does put
# it into a "pretty good" sleep though, where if you touch the CPU after
# a few minutes, it's only a little bit warm.
#
# The reboot(RB_POWER_OFF) syscall doesn't seem to turn
# anything off at all (CPU stays hot, and software watchdog timer kicks
# in!).  I think it's equivalent to the 'halt' command on this platform.
#
# /sys/power/state=standby leaves the CPU cooler, but still warm.  mem seems
# best.
#
stop watchdog
echo mem >/sys/power/state

# We should never get here.  But just in case we do, fall back to the normal
# 'halt' command.  Sadly, different versions take different options.  Try
# whatever works.
halt -p -f && sleep 2
halt -f && sleep 2
halt && sleep 10

# We should *really* never get here.  But just in case we do, suspend all
# the tasks.  That's as close as we can get to stopped.
kill -STOP -1