cansetup -> gpsinit, and integrate its documentation.

1 files changed, 85 insertions, 0 deletions

diff --git a/gpsinit b/gpsinit
new file mode 100755
index 00000000..1ab09655
--- /dev/null
+++ b/gpsinit
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+#!/bin/bash
+#
+# gpsinit - initialize kernel-CAN interfaces
+#
+# This file is Copyright (c) 2012 by the GPSD project.
+# BSD terms apply: see the file COPYING in the distribution root for details.
+#
+
+speed=38400
+net=0
+
+version()
+{
+    echo `basename $0`" : Version v0.20";
+}
+
+usage()
+{
+    version; echo;
+    echo "usage :" `basename $0` "[-n <netnumber>] [-s <serial speed>] <can_module_name> [<interface_name>]";
+    echo "      :" `basename $0` "-v";
+    echo "      :" `basename $0` "-h";
+    echo "  Options include:";
+    echo "  -n              = CAN network number, 0 if not given.";
+    echo "  -s              = Speed of the slcan hardware port, 38400 if not given.";
+    echo "                  = Needed for some slcan modules only.";
+    echo "  -v              = Print version of this script and exit.";
+    echo "  -h              = Print this help message and exit.";
+    echo "  can_module_name = One out of plx_pci, esd_usb2, vcan, slcan, beaglebone.";
+    echo "  interface_name  = The interface, the SLCAN module is connected to, i.e. /dev/ttyS0 or /dev/ttyUSB0.";
+    echo "                  = Needed for the slcan module only. The default is /dev/ttyUSB0.";
+    echo "Root permissions are needed for the first calling option (Enforced by socketCAN subsystem).";
+}
+
+while getopts :n:s:vh opt
+do
+    case ${opt} in
+        n)  net=${OPTARG};;
+        s)  speed=${OPTARG};;
+        v)  version; exit 0;;
+        h)  usage; exit 0;;
+        \?) usage; exit 1;;
+    esac
+done
+
+shift $((${OPTIND} - 1))
+
+candevice=$1
+ 
+case ${candevice} in
+plx_pci)
+    # For the SJA1000 based PCI or PCI-Express CAN interface
+    modprobe plx_pci;
+    ip link set can${net} type can tq 250 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1;
+    ip link set can${net} up;;
+esd_usb2)
+    # For an esd usb/2 CAN interface
+    modprobe esd_usb2;
+    ip link set can${net} type can tq 250 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1;
+    ip link set can${net} up;;
+vcan)
+    # With this setup, CAN frames can be injected into vcan0 by a test
+    modprobe vcan;
+    ip link add type vcan;
+    ip link set vcan${net} up;;
+slcan)
+    # For a serial line CAN device
+    # No support for devices, that need a setup of the baudrate yet
+    device=${2:-/dev/ttyUSB0};
+    modprobe slcan;
+    slcan_attach -f -s5 -o ${device};
+    slcand `basename ${device}`; 
+    ip link set slcan${net} up;;
+beaglebone)
+    # For CAN interface on a BeagleBone
+    # The d_can driver is part of the kernel
+    ip link set can${net} type can bitrate 250000 sjw 1;
+    ip link set can${net} up;;
+*)
+    echo `basename ${0}` ": invalid CAN interface ${1} net${net} device ${2:-(none)}"
+    echo;
+    usage;
+    exit 1
+esac
+