1 files changed, 68 insertions, 0 deletions
diff --git a/net-wireless/irda-utils/files/irda-setup.sh b/net-wireless/irda-utils/files/irda-setup.sh
new file mode 100644
index 000000000000..a7c781989c57
--- /dev/null
+++ b/net-wireless/irda-utils/files/irda-setup.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+#
+# irda-setup
+#
+# Initialize IrDA devices. Based on a Ubuntu init-script,
+# but adapted to be called directly from udev.
+#
+# params: sir/fir <module> <options>
+
+MODE="${1}"
+shift
+
+SYSFS="/sys"
+RESOURCES="${SYSFS}${DEVPATH}/resources"
+
+# Work out resource ranges, so we know which serial port to work with
+PORTS=$(/bin/sed -n 's/io \(.*\)-.*/\1/p' "${RESOURCES}")
+for PORT in ${PORTS}; do
+	case "${PORT}" in
+		0x3f8)
+			PORT="/dev/ttyS0"
+			break;;
+		0x2f8)
+			PORT="/dev/ttyS1"
+			break;;
+		0x3e8)
+			PORT="/dev/ttyS2"
+			break;;
+		0x2e8)
+			PORT="/dev/ttyS3"
+			break;;
+		default)
+			PORT="UNKNOWN";;
+	esac
+done
+
+# Handle FIR dongles
+if [ "${MODE}" = "fir" ]; then
+	# The BIOS doesn't always activate the device. Prod it
+	echo disable > "${RESOURCES}"
+	echo activate > "${RESOURCES}"
+
+	UART="unknown";
+	if [ "${PORT}" != "UNKNOWN" ]; then
+		# We should attempt to disable the UART. However, we need to store
+		# it - there's a chance that things could still go horribly wrong
+		UART=$(/bin/setserial ${PORT} | /bin/sed 's/.*UART: \(.*\), Port.*/\1/')
+		/bin/setserial ${PORT} uart none
+	fi
+
+	# Load FIR module
+	/sbin/modprobe -sq "${@}" && exit 0  # OK
+
+	# Try to recover
+	[ "${UART}" != "undefined" ] && /bin/setserial ${PORT} uart ${UART}
+fi
+
+# We'll only have got here if we have SIR or the FIR module has failed
+if [ "${PORT}" != "UNKNOWN" ]; then
+	# The BIOS doesn't always activate the device. Prod it
+	echo disable > "${RESOURCES}"
+	echo activate > "${RESOURCES}"
+
+	# The IRQ is not always set correctly, so try to deal with that
+	/bin/setserial ${PORT} $(/bin/grep -h '^irq ' "${RESOURCES}")
+fi
+
+exit 0  # never fail