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 -s -d 2
  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 DO NOT POWER OFF OR DISCONNECT THE DEVICE WHILE THIS OPERATION IS IN PROGRESS!
  48
  49
  50 Are you sure you want to flash '$file' onto the CEC adapter?
  51 Type 'do it!' if you're sure. Anything else will cancel the operation.
  52
  53 EOB
  54   read confirmation
  55   if [ ! "$confirmation" == "do it!" ]; then
  56     echo "Exiting"
  57     exit 0
  58   fi
  59
  60   _prereq
  61   if [ $? -eq 1 ]; then
  62     exit 1
  63   fi
  64
  65   _check_bootloader_device
  66   if [ $? -eq 1 ]; then
  67     exit 1
  68   fi
  69
  70
  71   echo "Erasing the previous firmware"
  72   sudo dfu-programmer at90usb162 erase
  73
  74   echo "Flashing the new firmware"
  75   sudo dfu-programmer at90usb162 flash "$file"
  76
  77   cat << EOB
  78
  79 ===============================================================================
  80
  81 Done!
  82
  83 Remove the USB cable from the device and reconnect it to use the new firmware.
  84
  85 EOB
  86   exit 0
  87 }
  88
  89 _prereq()
  90 {
  91   programmer=`which dfu-programmer`
  92   if [ -z "$programmer" ]; then
  93     echo "dfu-programmer was not found in your path, installing"
  94     sudo apt-get install -y dfu-programmer
  95   fi
  96
  97   programmer=`which dfu-programmer`
  98   if [ -z "$programmer" ]; then
  99     echo "ERROR: failed to find dfu-programmer"
 100     return 1
 101   fi
 102   return 0
 103 }
 104
 105
 106 cat << EOB
 107 ===============================================================================
 108               Pulse-Eight CEC Adapter firmware flash tool
 109 ===============================================================================
 110
 111 EOB
 112
 113 if [ -z "$1" ]; then
 114   _usage
 115 else
 116   _flash $1
 117 fi
 118
 119 exit 0