1#!/bin/sh
2#
3# Suspend the system using either ACPI or APM.
4# For APM, "apm -z" will be issued.
5# For ACPI, the configured suspend state will be looked up, checked to see
6# if it is supported, and "acpiconf -s <state>" will be issued.
7#
8# Mark Santcroos <marks@ripe.net>
9#
10
11PATH=/sbin:/usr/sbin:/usr/bin:/bin
12
13ACPI_SUSPEND_STATE=hw.acpi.suspend_state
14ACPI_SUPPORTED_STATES=hw.acpi.supported_sleep_state
15APM_SUSPEND_DELAY=machdep.apm_suspend_delay
16
17# Check for ACPI support
18if sysctl $ACPI_SUSPEND_STATE >/dev/null 2>&1; then
19	# Get configured suspend state
20	SUSPEND_STATE=$(sysctl -n $ACPI_SUSPEND_STATE)
21
22	# Get list of supported suspend states
23	SUPPORTED_STATES=$(sysctl -n $ACPI_SUPPORTED_STATES)
24
25	# Check if the configured suspend state is supported by the system
26	if echo "$SUPPORTED_STATES" | grep "$SUSPEND_STATE" >/dev/null; then
27		# execute ACPI style suspend command
28		exec acpiconf -s "$SUSPEND_STATE"
29	else
30		echo "Requested suspend state $SUSPEND_STATE is not supported."
31		echo "Supported states: $SUPPORTED_STATES"
32	fi
33# Check for APM support
34elif sysctl $APM_SUSPEND_DELAY >/dev/null 2>&1; then
35	# Execute APM style suspend command
36	exec apm -z
37else
38	echo "Error: no ACPI or APM suspend support found."
39fi
40
41exit 1
42