From 3436d5b9497f681de55b22deac3f22d9783d4271 Mon Sep 17 00:00:00 2001
From: Marty Sluijtman <marty.wanderer@disroot.org>
Date: Wed, 12 Jul 2023 16:59:16 +0200
Subject: [PATCH] Initial commit

---
 README.md  |  3 +++
 pwr-switch | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)
 create mode 100644 README.md
 create mode 100755 pwr-switch

diff --git a/README.md b/README.md
new file mode 100644
index 0000000..321893f
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# PWR-Switch
+
+A little wrapper around [my PWR-Switch config](https://voidcruiser.nl/rambles/pwr-switch/).
diff --git a/pwr-switch b/pwr-switch
new file mode 100755
index 0000000..921a4f9
--- /dev/null
+++ b/pwr-switch
@@ -0,0 +1,68 @@
+#!/bin/sh
+
+# $Id: pwr-switch 122491 2022-06-02 13:30:06Z sluijtma $
+# $URL: https://svn.uvt.nl/its-unix/systems/hastur/usr/local/sbin/pwr-switch $
+
+INIT_PIN(){
+	# the PWR-SWITCH is connected to GPIO 15 and the presceding ground pin
+	# reference page https://pinout.xyz/pinout/
+	[ -d /sys/class/gpio/gpio15 ] && echo "Pin already initialised" && exit 0
+	echo 15 > /sys/class/gpio/export
+	echo out > /sys/class/gpio/gpio15/direction
+}
+
+DEINIT_PIN(){
+	[ -d /sys/class/gpio/gpio15 ] || echo "Pin not initialised" && exit 0
+	echo 15 > /sys/class/gpio/unexport
+}
+
+PIN_STATUS(){
+	if [ -d /sys/class/gpio/gpio15 ] ; then
+		echo "pin status: Pin initialised"
+	else
+		echo "pin status: Pin not initialised"
+	fi
+}
+
+SWITCH_ON(){
+	# initialise pin before doing anything
+	[ -d /sys/class/gpio/gpio15 ] || INIT_PIN
+	echo 1 > /sys/class/gpio/gpio15/value
+}
+
+SWITCH_OFF(){
+	# initialise pin before doing anything
+	[ -d /sys/class/gpio/gpio15 ] || INIT_PIN
+	echo 0 > /sys/class/gpio/gpio15/value
+}
+
+TOGGLE_SWITCH(){
+	# initialise pin before doing anything
+	[ -d /sys/class/gpio/gpio15 ] || INIT_PIN
+	case $(cat /sys/class/gpio/gpio15/value) in
+		1) SWITCH_OFF;;
+		0) SWITCH_ON;;
+	esac
+}
+
+USAGE(){
+	cat >&2 <<EOF
+Usage: pwr-switch <on|off|init|deinit|help>
+	on: send on signal
+	off: send off signal
+	init: initialise pin
+	deinit: deinitialise pin
+	status: show pin initialisation state
+	toggle: toggle on/off signal
+EOF
+}
+
+case $1 in
+	on) SWITCH_ON;;
+	off) SWITCH_OFF;;
+	init) INIT_PIN;;
+	deinit) DEINIT_PIN;;
+	status) PIN_STATUS;;
+	toggle) TOGGLE_SWITCH;;
+	*) USAGE;;
+esac