cec: added a firmware flash script for linux. usage: ./support/cec-flash-device.sh...

diff --git a/support/cec-flash-device.sh b/support/cec-flash-device.sh
new file mode 100755 (executable)
index 0000000..9443b97
--- /dev/null
+++ b/support/cec-flash-device.sh
@@ -0,0 +1,119 @@
+#!/bin/bash
+
+_usage()
+{
+  echo "Usage: $0 /path/to/firmware.hex"
+}
+
+_check_bootloader_device()
+{
+  cec_adapter=`lsusb  | grep "03eb:2ffa" | wc -l`
+  if [ $cec_adapter -eq 0 ]; then
+    _enter_bootloader
+    cec_adapter=`lsusb  | grep "03eb:2ffa" | wc -l`
+  fi
+
+  if [ $cec_adapter -eq 0 ]; then
+    echo "ERROR: failed to find any CEC adapter in bootloader mode"
+    return 1
+  fi
+
+  return 0
+}
+
+_enter_bootloader()
+{
+  echo "Instructing the CEC adapter to enter bootloader mode"
+  cec_adapter=`lsusb  | grep "2548:1001" | wc -l`
+  if [ $cec_adapter -gt 0 ]; then
+    echo "bl" | cec-client -s -d 2
+    echo "Waiting for the device to reinitialise"
+    sleep 5
+  fi
+}
+
+_flash()
+{
+  file=$1
+
+  if [ ! -f "$file" ]; then
+    echo "ERROR: firmware file '$file' does not exist"
+    exit 1
+  fi
+
+  cat << EOB
+Flash '$file' onto the CEC adapter
+
+DO NOT POWER OFF OR DISCONNECT THE DEVICE WHILE THIS OPERATION IS IN PROGRESS!
+
+
+Are you sure you want to flash '$file' onto the CEC adapter?
+Type 'do it!' if you're sure. Anything else will cancel the operation.
+
+EOB
+  read confirmation
+  if [ ! "$confirmation" == "do it!" ]; then
+    echo "Exiting"
+    exit 0
+  fi
+
+  _prereq
+  if [ $? -eq 1 ]; then
+    exit 1
+  fi
+
+  _check_bootloader_device
+  if [ $? -eq 1 ]; then
+    exit 1
+  fi
+
+
+  echo "Erasing the previous firmware"
+  sudo dfu-programmer at90usb162 erase
+
+  echo "Flashing the new firmware"
+  sudo dfu-programmer at90usb162 flash "$file"
+
+  cat << EOB
+
+===============================================================================
+
+Done!
+
+Remove the USB cable from the device and reconnect it to use the new firmware.
+
+EOB
+  exit 0
+}
+
+_prereq()
+{
+  programmer=`which dfu-programmer`
+  if [ -z "$programmer" ]; then
+    echo "dfu-programmer was not found in your path, installing"
+    sudo apt-get install -y dfu-programmer
+  fi
+
+  programmer=`which dfu-programmer`
+  if [ -z "$programmer" ]; then
+    echo "ERROR: failed to find dfu-programmer"
+    return 1
+  fi
+  return 0
+}
+
+
+cat << EOB
+===============================================================================
+              Pulse-Eight CEC Adapter firmware flash tool
+===============================================================================
+
+EOB
+
+if [ -z "$1" ]; then
+  _usage
+else
+  _flash $1
+fi
+
+exit 0