ENC28J60 SPI packet analyzer written i bash

spi_packet_analyzer.sh

#!/bin/bash

first=1

# Skip the first line
read junk

export IFS=","

last_id=abc
bank=0

while getopts ":b:" opt
do
  case $opt in
    b)
      bank=$OPTARG
      ;;
    *)
      echo "Invalid option: -$OPTARG" >&2
      ;;
  esac
done


while read time id mosi miso
do
  if [ -z "$id" ]
  then
    continue
  fi

  mosi=`echo $mosi | sed "s,^0b  \(....\) *\(....\)$,\1\2,"`
  miso=`echo $miso | sed "s,^0b  \(....\) *\(....\)$,\1\2,"`

  if [ "$id" != "$last_id" ]
  then
    echo
    echo -n "#$id: "

    reg=`echo $mosi | cut -c 4-8`
    reg_dec=`concalc -m base -b dec bin$reg 2>/dev/null`
    reg_hex=`concalc -m base -b hex bin$reg 2>/dev/null`
    echo mosi=$mosi, opcode=`echo $mosi | cut -c 1-3`
#    set -x
    name=`sed -n \
        -e "s, *\([A-Z0-9]*\).*= 0x${bank} + 0x0$reg_hex.*$,\1,p" \
        -e "s, *\([A-Z0-9]*\).*= 0x${bank} + 0x$reg_hex.*$,\1,p" \
        $0`
    set +x
    case $mosi in
      000*)
        echo "read control"
        echo "Register: $reg, $reg_dec, $reg_hex, name=$name (bank=0x${bank}0)"
        ;;
      00111010) echo "read buffer memory" ;;
      010*)
        echo "write control"
        echo "Register: $reg, $reg_dec, $reg_hex, name=$name (bank=0x${bank}0)"
        if [ $reg_hex = 1F ]
        then
#          set -x
          read_bank=1
        fi
        ;;
      00111010) echo "write buffer memory" ;;
      100*)
        echo "bit field set"
        echo "Register: $reg, $reg_dec, $reg_hex, name=$name (bank=0x${bank}0)"
        ;;
      101*)
        echo "bit field clear"
        echo "Register: $reg, $reg_dec, $reg_hex, name=$name (bank=0x${bank}0)"
        ;;
      11111111)
        echo "reset"
        ;;
      *) echo "UNKNOWN" ;;
    esac
  else
    echo "Data: out=$mosi in=$miso"
    if [ "$read_bank" = 1 ]
    then
#      set -x
      bank=`concalc -m base -b hex "bin${mosi}00 & bin1100" 2>/dev/null`
      set +x
      read_bank=0
    fi
  fi
  last_id=$id
done

echo ""
echo "Current bank: $bank"

exit 0
ERDPTL      = 0x0 + 0x00
EHT0        = 0x4 + 0x00
MACON1      = 0x8 + 0x00
MAADR5      = 0xC + 0x00
ERDPTH      = 0x0 + 0x01
EHT1        = 0x4 + 0x01
MAADR6      = 0xC + 0x01
EWRPTL      = 0x0 + 0x02
EHT2        = 0x4 + 0x02
MACON3      = 0x8 + 0x02
MAADR3      = 0xC + 0x02
EWRPTH      = 0x0 + 0x03
EHT3        = 0x4 + 0x03
MACON4      = 0x8 + 0x03
MAADR4      = 0xC + 0x03
ETXSTL      = 0x0 + 0x04
EHT4        = 0x4 + 0x04
MABBIPG     = 0x8 + 0x04
MAADR1      = 0xC + 0x04
ETXSTH      = 0x0 + 0x05
EHT5        = 0x4 + 0x05
MAADR2      = 0xC + 0x05
ETXNDL      = 0x0 + 0x06
EHT6        = 0x4 + 0x06
MAIPGL      = 0x8 + 0x06
EBSTSD      = 0xC + 0x06
ETXNDH      = 0x0 + 0x07
EHT7        = 0x4 + 0x07
MAIPGH      = 0x8 + 0x07
EBSTCON     = 0xC + 0x07
ERXSTL      = 0x0 + 0x08
EPMM0       = 0x4 + 0x08
MACLCON1    = 0x8 + 0x08
EBSTCSL     = 0xC + 0x08
ERXSTH      = 0x0 + 0x09
EPMM1       = 0x4 + 0x09
MACLCON2    = 0x8 + 0x09
EBSTCSH     = 0xC + 0x09
ERXNDL      = 0x0 + 0x0A
EPMM2       = 0x4 + 0x0A
MAMXFLL     = 0x8 + 0x0A
MISTAT      = 0xC + 0x0A
ERXNDH      = 0x0 + 0x0B
EPMM3       = 0x4 + 0x0B
MAMXFLH     = 0x8 + 0x0B
ERXRDPTL    = 0x0 + 0x0C
EPMM4       = 0x4 + 0x0C
ERXRDPTH    = 0x0 + 0x0D
EPMM5       = 0x4 + 0x0D
ERXWRPTL    = 0x0 + 0x0E
EPMM6       = 0x4 + 0x0E
ERXWRPTH    = 0x0 + 0x0F
EPMM7       = 0x4 + 0x0F
EDMASTL     = 0x0 + 0x10
EPMCSL      = 0x4 + 0x10
EDMASTH     = 0x0 + 0x11
EPMCSH      = 0x4 + 0x11
EDMANDL     = 0x0 + 0x12
MICMD       = 0x8 + 0x12
EREVID      = 0xC + 0x12
EDMANDH     = 0x4 + 0x13
EDMADSTL    = 0x0 + 0x14
EPMOL       = 0x4 + 0x14
MIREGADR    = 0x8 + 0x14
EDMADSTH    = 0x0 + 0x15
EPMOH       = 0x4 + 0x15
ECOCON      = 0xC + 0x15
EDMACSL     = 0x0 + 0x16
MIWRL       = 0x8 + 0x16
EDMACSH     = 0x0 + 0x17
MIWRH       = 0x8 + 0x17
EFLOCON     = 0xC + 0x17
ERXFCON     = 0x4 + 0x18
MIRDL       = 0x8 + 0x18
EPAUSL      = 0xC + 0x18
EPKTCNT     = 0x4 + 0x19
MIRDH       = 0x8 + 0x19
EPAUSH      = 0xC + 0x19
EIE         = 0x0 + 0x1B
EIR         = 0x0 + 0x1C
ESTAT       = 0x0 + 0x1D
ECON2       = 0x0 + 0x1E
ECON1       = 0x0 + 0x1F
EIE         = 0x4 + 0x1B
EIR         = 0x4 + 0x1C
ESTAT       = 0x4 + 0x1D
ECON2       = 0x4 + 0x1E
ECON1       = 0x4 + 0x1F
EIE         = 0x8 + 0x1B
EIR         = 0x8 + 0x1C
ESTAT       = 0x8 + 0x1D
ECON2       = 0x8 + 0x1E
ECON1       = 0x8 + 0x1F
EIE         = 0xC + 0x1B
EIR         = 0xC + 0x1C
ESTAT       = 0xC + 0x1D
ECON2       = 0xC + 0x1E
ECON1       = 0xC + 0x1F