From 6295efdc2f60ea16f48962e7ffc4355dfbdfabf8 Mon Sep 17 00:00:00 2001
From: Scott Murray <scott.murray@konsulko.com>
Date: Sun, 15 Nov 2020 16:43:52 -0500
Subject: Enable testing without CAN hardware

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
---
 .../files/can-dev-mapping-helper.conf              |  3 ++
 .../files/can-dev-mapping-helper.service           |  6 ++++
 .../files/can-dev-mapping-helper.sh                | 36 ++++++++++++++++++++++
 3 files changed, 45 insertions(+)
 create mode 100644 recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.conf
 create mode 100644 recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.service
 create mode 100644 recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.sh

(limited to 'recipes-apis/agl-service-can-low-level/files')

diff --git a/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.conf b/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.conf
new file mode 100644
index 0000000..c89cc4d
--- /dev/null
+++ b/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.conf
@@ -0,0 +1,3 @@
+[Unit]
+Wants=can-dev-mapping-helper.service
+After=can-dev-mapping-helper.service
diff --git a/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.service b/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.service
new file mode 100644
index 0000000..0436716
--- /dev/null
+++ b/recipes-apis/agl-service-can-low-level/files/can-dev-mapping-helper.service
@@ -0,0 +1,6 @@
+[Unit]
+Description=CAN interface helper
+
+[Service]
+ExecStart=/usr/sbin/can-dev-mapping-helper.sh
+Type=oneshot
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
-- 
cgit 1.2.3-korg