v2x-fw-load: waiting for exiting DFU mode with placeholder fw

BugzID: 72787
Signed-off-by: Marc Mattmueller <marc.mattmueller@netmodule.com>

recipes-bsp/v2x-ieee802.11p/files/v2x-fw-load

@@ -69,6 +69,18 @@ detectDfuMode()
     fi
 }
 
+waitForDfuModeExit()
+{
+    disconnectTimeoutS=20
+    echo "$SCRIPT_NAME: wait for v2x module leaving DFU mode (timeout=${disconnectTimeoutS}s)..."
+    timeout $disconnectTimeoutS bash -c -- 'while true; do dmesg | grep "0483:df11"; if [ $? != 0 ]; then break; fi; done'
+    if [ $? = 124 ]; then
+        echo "$SCRIPT_NAME: no DFU mode exit of v2x module detected"
+    else
+        echo "$SCRIPT_NAME: v2x module exited DFU mode"
+    fi
+}
+
 loadFirmware()
 {
     echo "$SCRIPT_NAME: loading v2x firmware..."
@@ -112,13 +124,14 @@ getConfigParameters
 
 enableTheModule
 
+detectDfuMode
+
 if [ $IS_PLACEHOLDER_FW = true ]; then
     echo "$SCRIPT_NAME: v2x placeholder firmware configured"
+    waitForDfuModeExit
     exit 0
 fi
 
-detectDfuMode
-
 loadFirmware
 
 exit 0