support/cec-flash-device.sh

   1 #!/bin/bash
   2
   3 _usage()
   4 {
   5   echo "Usage: $0 /path/to/firmware.hex"
   6 }
   7
   8 _check_bootloader_device()
   9 {
  10   cec_adapter=`lsusb  | grep "03eb:2ffa" | wc -l`
  11   if [ $cec_adapter -eq 0 ]; then
  12     _enter_bootloader
  13     cec_adapter=`lsusb  | grep "03eb:2ffa" | wc -l`
  14   fi
  15
  16   if [ $cec_adapter -eq 0 ]; then
  17     echo "ERROR: failed to find any CEC adapter in bootloader mode"
  18     return 1
  19   fi
  20
  21   return 0
  22 }
  23
  24 _enter_bootloader()
  25 {
  26   echo "Instructing the CEC adapter to enter bootloader mode"
  27   cec_adapter=`lsusb  | grep "2548:1001" | wc -l`
  28   if [ $cec_adapter -gt 0 ]; then
  29     echo "bl" | cec-client --bootloader
  30     echo "Waiting for the device to reinitialise"
  31     sleep 5
  32   fi
  33 }
  34
  35 _flash()
  36 {
  37   file=$1
  38
  39   if [ ! -f "$file" ]; then
  40     echo "ERROR: firmware file '$file' does not exist"
  41     exit 1
  42   fi
  43
  44   cat << EOB
  45 Flash '$file' onto the CEC adapter
  46
  47 DISCONNECT THE HDMI CABLES BEFORE STARTING AND
  48 DO NOT POWER OFF OR DISCONNECT THE DEVICE WHILE THIS OPERATION IS IN PROGRESS!
  49
  50
  51 Are you sure you want to flash '$file' onto the CEC adapter?
  52 Type 'do it!' if you're sure. Anything else will cancel the operation.
  53
  54 EOB
  55   read confirmation
  56   if [ ! "$confirmation" == "do it!" ]; then
  57     echo "Exiting"
  58     exit 0
  59   fi
  60
  61   _prereq
  62   if [ $? -eq 1 ]; then
  63     exit 1
  64   fi
  65
  66   _check_bootloader_device
  67   if [ $? -eq 1 ]; then
  68     exit 1
  69   fi
  70
  71
  72   echo "Erasing the previous firmware"
  73   sudo dfu-programmer at90usb162 erase
  74
  75   echo "Flashing the new firmware"
  76   sudo dfu-programmer at90usb162 flash "$file"
  77
  78   cat << EOB
  79
  80 ===============================================================================
  81
  82 Done!
  83
  84 Remove the USB cable from the device and reconnect it to use the new firmware.
  85
  86 EOB
  87   exit 0
  88 }
  89
  90 _prereq()
  91 {
  92   programmer=`which dfu-programmer`
  93   if [ -z "$programmer" ]; then
  94     echo "dfu-programmer was not found in your path, installing"
  95     sudo apt-get install -y dfu-programmer
  96   fi
  97
  98   programmer=`which dfu-programmer`
  99   if [ -z "$programmer" ]; then
 100     echo "ERROR: failed to find dfu-programmer"
 101     return 1
 102   fi
 103   return 0
 104 }
 105
 106
 107 cat << EOB
 108 ===============================================================================
 109               Pulse-Eight CEC Adapter firmware flash tool
 110 ===============================================================================
 111
 112 EOB
 113
 114 if [ -z "$1" ]; then
 115   _usage
 116 else
 117   _flash $1
 118 fi
 119
 120 exit 0