Adding eeprom info bash script

diff --git a/scripts/jme_eeprom.sh b/scripts/jme_eeprom.sh
new file mode 100755 (executable)
index 0000000..531384c
--- /dev/null
+++ b/scripts/jme_eeprom.sh
@@ -0,0 +1,138 @@
+#!/bin/bash
+
+########################################
+# Getting eeprom data                  #
+########################################
+
+# Check bash version
+msg="Please use bash version 3 or later."
+if [[ ${BASH_VERSION} =~ ^([0-9])\.[0-9]\.(.*) ]]; then
+       if (( ${BASH_REMATCH[1]} < 3 )); then
+               echo ${msg}
+               exit
+       fi
+else
+       echo ${msg}
+       exit
+fi
+
+# Parse arguments
+if [[ ! $1 =~ ^eth[0-9]$ ]]; then
+       echo "Usage: $0 ethX"
+       echo
+       echo "Print eeprom info of JME Ethernet."
+       echo
+       exit
+fi
+
+# Get eeprom data via ethtool
+PATH="${PATH}:/sbin:/usr/sbin:/bin:/usr/bin"
+romdata=$(ethtool -e $1 raw on |\
+          od --width=1 --format=x1 --address-radix=x --output-duplicates |\
+         awk '{print $2;}')
+if [[ -z "${romdata}" ]]; then
+       exit
+fi
+romdata=$(echo ${romdata} | tr '[:lower:]' '[:upper:]' | sed 's/\( FF\)\+$//')
+
+########################################
+# Check for all non-optional data      #
+########################################
+
+# Check JME eeprom prefix
+echo -n "EEPROM prefix check: "
+if [[ ${romdata} =~ ^55\ AA\ (.*)$ ]]; then
+       echo OK.
+else
+       echo "Failed. (Not JMicron NIC?)"
+       exit
+fi
+romdata=${BASH_REMATCH[1]}
+
+# Check JME eeprom suffix
+echo -n "EEPROM suffix check: "
+if [[ ${romdata} =~ ^(.*)\ 80\ 00\ 00$ ]]; then
+       echo OK.
+else
+       echo "Failed (Not JMicron NIC?)."
+       exit
+fi
+romdata=${BASH_REMATCH[1]}
+
+# Check JME eeprom MAC Address
+echo -n "EEPROM MAC Address check: "
+if [[ ${romdata} =~ ^(.*)[\ ]?01\ 38\ ([0-9A-F]{2})\ 01\ 39\ ([0-9A-F]{2})\ 01\ 3A\ ([0-9A-F]{2})\ 01\ 3B\ ([0-9A-F]{2})\ 01\ 3C\ ([0-9A-F]{2})\ 01\ 3D\ ([0-9A-F]{2})[\ ]?(.*)$ ]]; then
+       echo OK.
+       MACADDR=${BASH_REMATCH[2]}:${BASH_REMATCH[3]}:${BASH_REMATCH[4]}:${BASH_REMATCH[5]}:${BASH_REMATCH[6]}:${BASH_REMATCH[7]}
+       echo "       MAC Address: ${MACADDR}"
+else
+       echo Failed.
+       exit
+fi
+romdata="${BASH_REMATCH[1]} ${BASH_REMATCH[8]}"
+
+########################################
+# Print out all optional data         #
+########################################
+
+if [[ -z "${romdata}" ]]; then
+       exit
+fi
+
+# Print other eeprom data
+(( smicmd = 0 ))
+echo -e "\nOther eeprom data:"
+while [[ ! -z "${romdata}" ]]; do
+       if [[ ! ${romdata} =~ ^[\ ]?(0[012])\ ([0-9A-F]{2})\ ([0-9A-F]{2})[\ ]?(.*) ]]; then
+               echo "    EEPROM contains error data"
+               exit
+       fi
+       cmd=${BASH_REMATCH[1]}
+       address=${BASH_REMATCH[2]}
+       value=${BASH_REMATCH[3]}
+       romdata=${BASH_REMATCH[4]}
+
+       if [[ (( ${smicmd} == 0 )) && ${cmd} == "01" && ${address} == "53" ]]; then
+               (( ++smicmd )); v1=${value}
+       elif [[ (( ${smicmd} == 1 )) && ${cmd} == "01" && ${address} == "52" ]]; then
+               (( ++smicmd )); v2=${value}
+       elif [[ (( ${smicmd} == 2 )) && ${cmd} == "01" && ${address} == "51" ]]; then
+               (( ++smicmd )); v3=${value}
+       elif [[ (( ${smicmd} == 3 )) && ${cmd} == "01" && ${address} == "50" ]]; then
+               (( smicmd = 0 ))
+               v4=${value}
+               data=${v1}${v2}
+               bcenv="scale = 0; obase = 10; ibase = 16;"
+               reg=$(echo "${bcenv} ${v3} / 8;" | bc)
+               phy=$(echo "${bcenv} a = ${v3}; b = ${v4};\
+                           a %= 4; a *= 8; b /= 40; a + b;" | bc)
+               rw=$(echo "${bcenv} a = ${v4}; a /= 20; a % 2;" | bc)
+               if [[ ${rw} == "1" ]]; then
+                       rw="Write"
+                       value=" value=${data}"
+               else
+                       rw="Read"
+                       value=""
+               fi
+               valid=$(echo "${bcenv} a = ${v4}; a % 20;" | bc)
+               if [[ ${valid} == "16" ]]; then
+                       valid="Valid"
+               else
+                       valid="Invalid"
+               fi
+               echo "${valid} SMI Command: ${rw} phyaddr=${phy} reg=${reg}${value}"
+       elif [[ (( ${smicmd} != 0 )) ]]; then
+               echo "    EEPROM contains error data"
+               exit
+       else
+               if [[ ${cmd} == "00" ]]; then
+                       echo -n "Configuration Space: "
+               elif [[ ${cmd} == "01" ]]; then
+                       echo -n "First IO Space(BAR2): "
+               elif [[ ${cmd} == "02" ]]; then
+                       echo -n "Second IO Space(BAR3): "
+               fi
+               echo "Address=${address} Value=${value}"
+       fi
+done
+