net-misc/can-utils: New package 2020.12.0

Package-Manager: Portage-3.0.13, Repoman-3.0.2
Signed-off-by: Hans Fredrik Nordhaug <hansfn@gmail.com>

net-misc/can-utils/files/slcan.service

@@ -0,0 +1,19 @@
+[Unit]
+Description=Userspace daemon for serial line CAN interface driver SLCAN
+
+[Service]
+Environment=can_speed=S5
+Environment=tty_baud=460800
+Environment=tty_device=ttyUSB0
+Environment=can_device=can0
+
+
+ExecStartPre=/sbin/modprobe slcan
+ExecStartPre=/bin/stty -F /dev/${tty_device} ${tty_baud} line 0 cs8 -onlcr -echo raw min 100 time 2
+ExecStartPre=/bin/sh -c 'echo -e -n "C\rF\r${can_speed}\rO\r" > /dev/${tty_device}'
+
+ExecStart=/usr/bin/slcand -F ${tty_device} ${can_device}
+ExecStartPost=/bin/sleep 1
+ExecStartPost=/bin/ip link set can0 txqueuelen 1000 up
+
+ExecStopPost=/sbin/modprobe -r slcan

net-misc/can-utils/files/slcan.service.conf

@@ -0,0 +1,18 @@
+# This file contains the configuration for the slcan daemon
+
+
+
+# The `stty' command includes support for speeds of 57600, 115200,
+# 230400, 460800, 500000, 576000, 921600, 1000000, 1152000, 1500000,
+# 2000000, 2500000, 3000000, 3500000, or 4000000
+
+# 921600 baud for S6
+# 460800 baud for S5
+
+# Case sensitive speed setting
+
+[Service]
+Environment=can_speed=S5
+Environment=tty_baud=460800
+Environment=tty_device=ttyUSB0
+Environment=can_device=can0

net-misc/can-utils/files/slcand.confd

@@ -0,0 +1,18 @@
+# /etc/conf.d/slcand
+# This file contains the configuration for the slcan daemon
+
+
+
+# The `stty' command includes support for speeds of 57600, 115200,
+# 230400, 460800, 500000, 576000, 921600, 1000000, 1152000, 1500000,
+# 2000000, 2500000, 3000000, 3500000, or 4000000
+
+# 921600 baud for S6
+# 460800 baud for S5
+
+# Case sensitive speed setting
+
+can_speed="S5"
+tty_baud="460800"
+tty_device="ttyUSB0"
+can_device="can0"

net-misc/can-utils/files/slcand.initd

@@ -0,0 +1,39 @@
+#!/sbin/runscript
+# Copyright 2013 Brunvoll AS
+
+
+start() {
+
+	if [ -z "${can_speed}" -o -z "${tty_baud}" -o -z "${tty_device}" -o -z "${can_device}" ]; then
+		eerror "CAN speed, CAN device, tty_baud or tty_device not set"
+		return 1
+	fi
+
+	if ! grep -q slcan /proc/modules; then
+		einfo "Loading module slcan"
+		modprobe slcan || return 1
+	fi
+
+	ebegin "Creating can0 at speed ${can_speed} on device ${tty_device}"		
+	einfo "Setting baudrate of ${tty_device} to ${tty_baud}"
+	stty -F /dev/${tty_device} ${tty_baud} line 0 cs8 -onlcr -echo raw min 100 time 2
+	sleep 1
+	einfo "Set bitrate of slcan on ${tty_device} to ${can_speed}: "
+	echo -e -n "C\rF\r${can_speed}\rO\r" > /dev/${tty_device}
+	sleep 1
+	einfo "Starting slcand"
+	start-stop-daemon --start --background --make-pidfile \
+					  --pidfile /var/run/slcand.pid \
+					  --exec /usr/bin/slcand -- ${tty_device} ${can_device}
+	sleep 1
+	ifconfig ${can_device} up
+	eend $?
+}
+
+stop() {
+	ebegin "Stopping slcand"
+	start-stop-daemon --stop --quiet --pidfile /var/run/slcand.pid
+	sleep 1
+	rmmod slcan
+	eend $?
+}