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Changes:
- Add can-dev-mapping-helper support changes from meta-agl-demo.
  It is less than ideal to duplicate them, but the timing of the
  planned layer reorganization and slimming down of meta-agl makes
  this seem less hassle.  Once the shift to the new layout is done,
  things can be rationalized as necessary.
- Also add the simple_can_simulator.py script, since without any
  physical CAN connection something is needed to drive testing.

Bug-AGL: SPEC-3689

Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I655409806026024c804942415ac476e59b916c28

1 files changed, 36 insertions, 0 deletions

diff --git a/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.sh b/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.sh
new file mode 100644
index 0000000..c81014f
--- /dev/null
+++ b/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+
+#
+# Script to bring up CAN interfaces configured in /etc/dev-mapping.conf
+# as vcan interfaces if no physical interface is present.
+#
+
+vcan_up() {
+    if [ -n "$1" ]; then
+        echo "Bringing up $1 as virtual CAN device"
+        ip link add dev $1 type vcan
+        ip link set up $1
+    fi
+}
+
+if [ ! -f /etc/dev-mapping.conf ]; then
+    exit 0
+fi
+
+hs=$(grep ^hs= /etc/dev-mapping.conf |cut -d= -f2 |tr -d '"')
+ls=$(grep ^ls= /etc/dev-mapping.conf |cut -d= -f2 |tr -d '"')
+
+if [ -n "$hs" ]; then
+    echo "Checking $hs"
+    if ! ifconfig $hs >/dev/null 2>&1; then
+        vcan_up $hs
+    fi
+fi
+if [ -n "$ls" -a "$ls" != "$hs" ]; then
+    echo "Checking $ls"
+    if ! ifconfig $ls >/dev/null 2>&1; then
+        vcan_up $ls
+    fi
+fi
+
+exit 0