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#!/bin/sh

DFU_MODE=0
CPLD=0

get_dfu() {
  if [ -r "/usr/share/hackrf/hackrf_one_usb.dfu" ]; then
    ram_firmware="/usr/share/hackrf/hackrf_one_usb.dfu"
  else
    printf "Unable to find hackrf_one_usb.dfu in the search path\n"
    exit 1
  fi
  export ram_firmware
}

get_cpld() {
  if [ -r "/usr/share/hackrf/hackrf_cpld_default.xsvf" ]; then
    cpld="/usr/share/hackrf/hackrf_cpld_default.xsvf"
  else
    printf "Unable to find default.xsvf in the search path\n"
    exit 1
  fi
  export cpld
}

usage() {
  printf "hackrf_easy_flash list\n"
  printf "hackrf_easy_flash upgrade\n"
}

if [ -z "${1}" ]; then
  usage
  exit 0
fi

list_firmware() {
  if [ ${DFU_MODE} = 1 ]; then
    if [ -z "${ram_firmware}" ]; then
      get_dfu
    fi
    printf "Best DFU found: ${ram_firmware}\n"
  fi
  printf "Available firmware options:\n"
  if [ -r "/usr/share/hackrf/hackrf_one_usb.bin" ]; then
    printf "hackrf (default)\n"
  fi
  if [ -r "/usr/share/hackrf/portapack-h1-firmware.bin" ]; then
    printf "portapack (--portapack)\n"
  fi
  if [ -r "/usr/share/hackrf/portapack-h1-havoc.bin" ]; then
    printf "portapack-havoc (--havoc)\n"
  fi
}

#parse args
while [ -n "${1}" ]; do
  case $1 in
    -h|--help)
      usage
      exit 0
      ;;
    list|--list)
      list_firmware
      exit 0
      ;;
    update|--update|upgrade|--upgrade|hackrf|--hackrf)
      firmware="/usr/share/hackrf/hackrf_one_usb.bin"
      TARGET=hackrf
      shift
      ;;
    portapack|--portapack)
      firmware="/usr/share/hackrf/portapack-h1-firmware.bin"
      TARGET=portapack
      shift
      ;;
    havoc|--havoc)
      firmware="/usr/share/hackrf/portapack-h1-havoc.bin"
      TARGET=havoc
      shift
      ;;
    cpld|--cpld)
      CPLD=1
      get_cpld
      shift
      ;;
    dfu|--dfu)
      DFU_MODE=1
      get_dfu
      shift
      ;;
    --)
      shift
      break
      ;;
    *)
      break
      ;;
  esac
done

if [ -z "${firmware}" ]; then
    firmware="/usr/share/hackrf/hackrf_one_usb.bin"
    TARGET="hackrf"
fi

if [ ! -r "${firmware}" ]; then
  printf "Unable to find or read ${firmware}\n"
  printf "Please ensure the requested firmware is installed and readable\n"
  exit 1
fi

if [ "${CPLD}" = 1 ] && [ "${TARGET}" != "hackrf" ]; then
  printf "To update the CPLD you must use the stock hackrf firmware or do this update manually\n"
  printf "Try \"$(basename $0) --cpld && $(basename $0) ${TARGET}\"\n"
  exit 1
fi

printf "This tool is provided by Gentoo, please report bugs on https://bugs.gentoo.org/\n\n"
if [ ${DFU_MODE} = 1 ]; then
  printf "Preparing to reset hackrf with DFU ${ram_firmware}\n"
  printf "Then flashing with ${firmware}\n\n"
  printf "Hold down the HackRF's DFU button (the button closest to the antenna jack)\n"
  printf "then plug the HackRF into a USB port on your computer.\n"
  printf "After the HackRF is plugged in, you may release the DFU button.\n"
  printf "Press any key to continue or ^c to abort\n"
  read
  if ! dfu-util --device 1fc9:000c --download "${ram_firmware}" --reset; then
    printf "dfu-util reported failure, quitting\n"
    exit 1
  fi
  sleep 2s
else
  if hackrf_info | grep -q 'No HackRF boards found.'; then
    printf "No hackrf found, please ensure you are in hackrf mode or try --dfu\n"
    exit 1
  fi
fi
if hackrf_spiflash -w "${firmware}"; then
  sleep 3s
  hackrf_spiflash -R
  sleep 3s
else
  printf "hackrf_spiflash reported failure, quitting\n"
  exit 1
fi
if [ "${CPLD}" = 1 ]; then
  #printf "To update the cpld, please reset your hackrf into it's new firmware before updating the cpld\n"
  #printf "Please reset your hackrf by pressing the button furthest from the antenna or power cycling it.\n"
  #printf "Press any key to continue or ^c to abort\n"
  #read
  if hackrf_cpldjtag -x "${cpld}"; then
    sleep 3s
    hackrf_spiflash -R
  else
    printf "hackrf_cpldjtag reported failure\n"
    exit 1
  fi
fi
if [ "${TARGET}" = "hackrf" ]; then
  hackrf_info
fi
printf "If you saw no errors, you are up to date with the requested firmware\n"