## @ GenCfgOpt.py
#
# Copyright (c) 2014 - 2022, Intel Corporation. All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##

import os
import re
import sys
import struct
from   datetime import date
from functools import reduce

# Generated file copyright header

__copyright_txt__ = """## @file
#
#  THIS IS AUTO-GENERATED FILE BY BUILD TOOLS AND PLEASE DO NOT MAKE MODIFICATION.
#
#  This file lists all VPD informations for a platform collected by build.exe.
#
# Copyright (c) %4d, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
"""

__copyright_bsf__ = """/** @file

  Boot Setting File for Platform Configuration.

  Copyright (c) %4d, Intel Corporation. All rights reserved.<BR>
  This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

  This file is automatically generated. Please do NOT modify !!!

**/

"""

__copyright_h__ = """/** @file

Copyright (c) %4d, Intel Corporation. All rights reserved.<BR>

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this
  list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this
  list of conditions and the following disclaimer in the documentation and/or
  other materials provided with the distribution.
* Neither the name of Intel Corporation nor the names of its contributors may
  be used to endorse or promote products derived from this software without
  specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  THE POSSIBILITY OF SUCH DAMAGE.

  This file is automatically generated. Please do NOT modify !!!

**/
"""

BuildOptionPcd = []

class CLogicalExpression:
    def __init__(self):
        self.index    = 0
        self.string   = ''

    def errExit(self, err = ''):
        print ("ERROR: Express parsing for:")
        print ("       %s" % self.string)
        print ("       %s^" % (' ' * self.index))
        if err:
            print ("INFO : %s" % err)
        raise SystemExit

    def getNonNumber (self, n1, n2):
        if not n1.isdigit():
            return n1
        if not n2.isdigit():
            return n2
        return None

    def getCurr(self, lens = 1):
        try:
            if lens == -1:
                return self.string[self.index :]
            else:
                if self.index + lens > len(self.string):
                    lens = len(self.string) - self.index
                return self.string[self.index : self.index + lens]
        except Exception:
            return ''

    def isLast(self):
        return self.index == len(self.string)

    def moveNext(self, len = 1):
        self.index += len

    def skipSpace(self):
        while not self.isLast():
            if self.getCurr() in ' \t':
                self.moveNext()
            else:
                return

    def normNumber (self, val):
        return True if val else False

    def getNumber(self, var):
        var = var.strip()
        if   re.match('^0x[a-fA-F0-9]+$', var):
            value = int(var, 16)
        elif re.match('^[+-]?\d+$', var):
            value = int(var, 10)
        else:
            value = None
        return value

    def parseValue(self):
        self.skipSpace()
        var = ''
        while not self.isLast():
            char = self.getCurr()
            if re.match('^[\w.]', char):
                var += char
                self.moveNext()
            else:
                break
        val = self.getNumber(var)
        if val is None:
            value = var
        else:
            value = "%d" % val
        return value

    def parseSingleOp(self):
        self.skipSpace()
        if re.match('^NOT\W', self.getCurr(-1)):
            self.moveNext(3)
            op  = self.parseBrace()
            val = self.getNumber (op)
            if val is None:
                self.errExit ("'%s' is not a number" % op)
            return "%d" % (not self.normNumber(int(op)))
        else:
            return self.parseValue()

    def parseBrace(self):
        self.skipSpace()
        char = self.getCurr()
        if char == '(':
            self.moveNext()
            value = self.parseExpr()
            self.skipSpace()
            if self.getCurr() != ')':
                self.errExit ("Expecting closing brace or operator")
            self.moveNext()
            return value
        else:
            value = self.parseSingleOp()
            return value

    def parseCompare(self):
        value = self.parseBrace()
        while True:
            self.skipSpace()
            char = self.getCurr()
            if char in ['<', '>']:
                self.moveNext()
                next = self.getCurr()
                if next == '=':
                    op = char + next
                    self.moveNext()
                else:
                    op = char
                result = self.parseBrace()
                test = self.getNonNumber(result, value)
                if test is None:
                    value = "%d" % self.normNumber(eval (value + op + result))
                else:
                    self.errExit ("'%s' is not a valid number for comparision" % test)
            elif char in ['=', '!']:
                op = self.getCurr(2)
                if op in ['==', '!=']:
                    self.moveNext(2)
                    result = self.parseBrace()
                    test = self.getNonNumber(result, value)
                    if test is None:
                        value = "%d" % self.normNumber((eval (value + op + result)))
                    else:
                        value = "%d" % self.normNumber(eval ("'" + value + "'" + op + "'" + result + "'"))
                else:
                    break
            else:
                break
        return value

    def parseAnd(self):
        value = self.parseCompare()
        while True:
            self.skipSpace()
            if re.match('^AND\W', self.getCurr(-1)):
                self.moveNext(3)
                result = self.parseCompare()
                test = self.getNonNumber(result, value)
                if test is None:
                    value = "%d" % self.normNumber(int(value) & int(result))
                else:
                    self.errExit ("'%s' is not a valid op number for AND" % test)
            else:
                break
        return value

    def parseOrXor(self):
        value  = self.parseAnd()
        op     = None
        while True:
            self.skipSpace()
            op = None
            if re.match('^XOR\W', self.getCurr(-1)):
                self.moveNext(3)
                op = '^'
            elif re.match('^OR\W', self.getCurr(-1)):
                self.moveNext(2)
                op = '|'
            else:
                break
            if op:
                result = self.parseAnd()
                test = self.getNonNumber(result, value)
                if test is None:
                    value = "%d" % self.normNumber(eval (value + op + result))
                else:
                    self.errExit ("'%s' is not a valid op number for XOR/OR" % test)
        return value

    def parseExpr(self):
        return self.parseOrXor()

    def getResult(self):
        value = self.parseExpr()
        self.skipSpace()
        if not self.isLast():
            self.errExit ("Unexpected character found '%s'" % self.getCurr())
        test = self.getNumber(value)
        if test is None:
            self.errExit ("Result '%s' is not a number" % value)
        return int(value)

    def evaluateExpress (self, Expr):
        self.index     = 0
        self.string    = Expr
        if self.getResult():
            Result = True
        else:
            Result = False
        return Result

class CGenCfgOpt:
    def __init__(self, Mode = ''):
        self.Debug          = False
        self.Error          = ''
        self.Mode           = Mode
        self._GlobalDataDef = """
GlobalDataDef
    SKUID = 0, "DEFAULT"
EndGlobalData

"""
        self._BuidinOptionTxt = """
List &EN_DIS
    Selection 0x1 , "Enabled"
    Selection 0x0 , "Disabled"
EndList

"""
        self._BsfKeyList    = ['FIND','NAME','HELP','TYPE','PAGE', 'PAGES', 'BLOCK', 'OPTION','CONDITION','ORDER', 'MARKER', 'SUBT']
        self._HdrKeyList    = ['HEADER','STRUCT', 'EMBED', 'COMMENT']
        self._BuidinOption  = {'$EN_DIS' : 'EN_DIS'}

        self._MacroDict   = {}
        self._VarDict     = {}
        self._PcdsDict    = {}
        self._CfgBlkDict  = {}
        self._CfgPageDict = {}
        self._BsfTempDict = {}
        self._CfgItemList = []
        self._DscLines    = []
        self._DscFile     = ''

        self._MapVer      = 0
        self._DscTime     = 0

    def ParseMacros (self, MacroDefStr):
        # ['-DABC=1', '-D', 'CFG_DEBUG=1', '-D', 'CFG_OUTDIR=Build']
        self._MacroDict = {}
        IsExpression = False
        for Macro in MacroDefStr:
            if Macro.startswith('-D'):
                IsExpression = True
                if len(Macro) > 2:
                    Macro = Macro[2:]
                else :
                    continue
            if IsExpression:
                IsExpression = False
                Match = re.match("(\w+)=(.+)", Macro)
                if Match:
                    self._MacroDict[Match.group(1)] = Match.group(2)
                else:
                    Match = re.match("(\w+)", Macro)
                    if Match:
                        self._MacroDict[Match.group(1)] = ''
        if len(self._MacroDict) == 0:
            Error = 1
        else:
            Error = 0
            if self.Debug:
                print ("INFO : Macro dictionary:")
                for Each in self._MacroDict:
                    print ("       $(%s) = [ %s ]" % (Each , self._MacroDict[Each]))
        return Error

    def EvaulateIfdef   (self, Macro):
        Result = Macro in self._MacroDict
        if self.Debug:
            print ("INFO : Eval Ifdef [%s] : %s" % (Macro, Result))
        return  Result

    def ExpandMacros (self, Input, Preserve = False):
        Line = Input
        Match = re.findall("\$\(\w+\)", Input)
        if Match:
            for Each in Match:
              Variable = Each[2:-1]
              if Variable in self._MacroDict:
                  Line = Line.replace(Each, self._MacroDict[Variable])
              else:
                  if self.Debug:
                      print ("WARN : %s is not defined" % Each)
                  if not Preserve:
                      Line = Line.replace(Each, Each[2:-1])
        return Line

    def ExpandPcds (self, Input):
        Line = Input
        Match = re.findall("(\w+\.\w+)", Input)
        if Match:
            for PcdName in Match:
              if PcdName in self._PcdsDict:
                  Line = Line.replace(PcdName, self._PcdsDict[PcdName])
              else:
                  if self.Debug:
                      print ("WARN : %s is not defined" % PcdName)
        return Line

    def EvaluateExpress (self, Expr):
        ExpExpr = self.ExpandPcds(Expr)
        ExpExpr = self.ExpandMacros(ExpExpr)
        LogExpr = CLogicalExpression()
        Result  = LogExpr.evaluateExpress (ExpExpr)
        if self.Debug:
            print ("INFO : Eval Express [%s] : %s" % (Expr, Result))
        return Result

    def ValueToByteArray (self, ValueStr, Length):
        Match = re.match("\{\s*FILE:(.+)\}", ValueStr)
        if Match:
          FileList = Match.group(1).split(',')
          Result  = bytearray()
          for File in FileList:
            File = File.strip()
            BinPath = os.path.join(os.path.dirname(self._DscFile), File)
            Result.extend(bytearray(open(BinPath, 'rb').read()))
        else:
            try:
                Result  = bytearray(self.ValueToList(ValueStr, Length))
            except ValueError as e:
                raise Exception ("Bytes in '%s' must be in range 0~255 !" % ValueStr)
        if len(Result) < Length:
            Result.extend(b'\x00' * (Length - len(Result)))
        elif len(Result) > Length:
            raise Exception ("Value '%s' is too big to fit into %d bytes !" % (ValueStr, Length))

        return Result[:Length]

    def ValueToList (self, ValueStr, Length):
        if ValueStr[0] == '{':
            Result = []
            BinList = ValueStr[1:-1].split(',')
            InBitField     = False
            LastInBitField = False
            Value          = 0
            BitLen         = 0
            for Element in BinList:
                InBitField = False
                Each = Element.strip()
                if len(Each) == 0:
                    pass
                else:
                    if Each[0] in ['"', "'"]:
                        Result.extend(list(bytearray(Each[1:-1], 'utf-8')))
                    elif ':' in Each:
                        Match    = re.match("(.+):(\d+)b", Each)
                        if Match is None:
                            raise Exception("Invald value list format '%s' !" % Each)
                        InBitField = True
                        CurrentBitLen = int(Match.group(2))
                        CurrentValue  = ((self.EvaluateExpress(Match.group(1)) & (1<<CurrentBitLen) - 1)) << BitLen
                    else:
                        Result.append(self.EvaluateExpress(Each.strip()))
                if InBitField:
                    Value  += CurrentValue
                    BitLen += CurrentBitLen
                if LastInBitField and ((not InBitField) or (Element == BinList[-1])):
                    if BitLen % 8 != 0:
                        raise Exception("Invald bit field length!")
                    Result.extend(Val2Bytes(Value, BitLen // 8))
                    Value  = 0
                    BitLen = 0
                LastInBitField = InBitField
        elif ValueStr.startswith("'") and ValueStr.endswith("'"):
            Result = Str2Bytes (ValueStr, Length)
        elif ValueStr.startswith('"') and ValueStr.endswith('"'):
            Result = Str2Bytes (ValueStr, Length)
        else:
            Result = Val2Bytes (self.EvaluateExpress(ValueStr), Length)
        return Result

    def FormatListValue(self, ConfigDict):
        Struct = ConfigDict['struct']
        if Struct not in ['UINT8','UINT16','UINT32','UINT64']:
            return

        dataarray = []
        binlist = ConfigDict['value'][1:-1].split(',')
        for each in binlist:
            each = each.strip()
            if each.startswith('0x'):
                value = int(each, 16)
            else:
                value = int(each)
            dataarray.append(value)

        unit = int(Struct[4:]) / 8
        if int(ConfigDict['length']) != unit * len(dataarray):
            raise Exception("Array size is not proper for '%s' !" % ConfigDict['cname'])

        bytearray = []
        for each in dataarray:
            value = each
            for loop in range(int(unit)):
                bytearray.append("0x%02X" % (value & 0xFF))
                value = value >> 8
        newvalue  = '{'  + ','.join(bytearray) + '}'
        ConfigDict['value'] = newvalue
        return ""

    def ParseDscFile (self, DscFile, FvDir):
        Hardcode = False
        AutoAlign = False
        self._CfgItemList = []
        self._CfgPageDict = {}
        self._CfgBlkDict  = {}
        self._DscFile     = DscFile
        self._FvDir       = FvDir

        self._DscLines    = []
        self._BsfTempDict = {}

        # Initial DSC time is parent DSC time.
        self._DscTime     = os.path.getmtime(DscFile)

        CfgDict = {}

        IsDefSect       = False
        IsPcdSect       = False
        IsUpdSect       = False
        IsVpdSect       = False
        IsTmpSect       = False

        TemplateName    = ''

        IfStack         = []
        ElifStack       = []
        Error           = 0
        ConfigDict      = {}


        if type(DscFile) is list:
            # it is DSC lines already
            DscLines       = DscFile
            self._DscFile  = '.'
        else:
            DscFd        = open(DscFile, "r")
            DscLines     = DscFd.readlines()
            DscFd.close()
            self._DscFile = DscFile

        SkipLines = 0

        MaxAlign = 32   #Default align to 32, but if there are 64 bit unit, align to 64
        SizeAlign = 0   #record the struct max align
        Base = 0        #Starting offset of sub-structure.

        while len(DscLines):
            DscLine  = DscLines.pop(0).strip()
            if SkipLines == 0:
              self._DscLines.append (DscLine)
            else:
              SkipLines = SkipLines - 1
            if len(DscLine) == 0:
              continue

            Handle   = False
            Match    = re.match("^\[(.+)\]", DscLine)
            if Match is not None:
                IsDefSect = False
                IsPcdSect = False
                IsVpdSect = False
                IsUpdSect = False
                IsTmpSect = False
                SectionName = Match.group(1).lower()
                if  SectionName == "Defines".lower():
                    IsDefSect = True
                if  (SectionName == "PcdsFeatureFlag".lower() or SectionName == "PcdsFixedAtBuild".lower()):
                    IsPcdSect = True
                elif SectionName == "PcdsDynamicVpd.Tmp".lower():
                    IsTmpSect = True
                elif SectionName == "PcdsDynamicVpd.Upd".lower():
                    ConfigDict = {}
                    ConfigDict['header']  = 'ON'
                    ConfigDict['region']  = 'UPD'
                    ConfigDict['order']   = -1
                    ConfigDict['page']    = ''
                    ConfigDict['name']    = ''
                    ConfigDict['find']    = ''
                    ConfigDict['marker']  = ''
                    ConfigDict['struct']  = ''
                    ConfigDict['embed']   = ''
                    ConfigDict['comment'] = ''
                    ConfigDict['subreg']  = []
                    ConfigDict['condition']  = ''
                    ConfigDict['option']  = ''
                    IsUpdSect = True
                    Offset    = 0
            else:
                if IsDefSect or IsPcdSect or IsUpdSect or IsVpdSect or IsTmpSect:

                    Match = False if DscLine[0] != '!' else True
                    if Match:
                        Match = re.match("^!(else|endif|ifdef|ifndef|if|elseif|include)\s*(.+)?$", DscLine.split("#")[0])
                    Keyword   = Match.group(1) if Match else ''
                    Remaining = Match.group(2) if Match else ''
                    Remaining = '' if Remaining is None else Remaining.strip()

                    if Keyword in ['if', 'elseif', 'ifdef', 'ifndef', 'include'] and not Remaining:
                        raise Exception ("ERROR: Expression is expected after '!if' or !elseif' for line '%s'" % DscLine)

                    if Keyword == 'else':
                        if IfStack:
                            IfStack[-1] = not IfStack[-1]
                        else:
                            raise Exception ("ERROR: No paired '!if' found for '!else' for line '%s'" % DscLine)
                    elif Keyword == 'endif':
                        if IfStack:
                            IfStack.pop()
                            Level = ElifStack.pop()
                            if Level > 0:
                                del IfStack[-Level:]
                        else:
                            raise Exception ("ERROR: No paired '!if' found for '!endif' for line '%s'" % DscLine)
                    elif Keyword == 'ifdef' or Keyword == 'ifndef':
                        Result = self.EvaulateIfdef (Remaining)
                        if Keyword == 'ifndef':
                            Result = not Result
                        IfStack.append(Result)
                        ElifStack.append(0)
                    elif Keyword == 'if' or Keyword == 'elseif':
                        Result = self.EvaluateExpress(Remaining)
                        if Keyword == "if":
                            ElifStack.append(0)
                            IfStack.append(Result)
                        else:   #elseif
                            if IfStack:
                                IfStack[-1] = not IfStack[-1]
                                IfStack.append(Result)
                                ElifStack[-1] = ElifStack[-1] + 1
                            else:
                                raise Exception ("ERROR: No paired '!if' found for '!elif' for line '%s'" % DscLine)
                    else:
                        if IfStack:
                            Handle = reduce(lambda x,y: x and y, IfStack)
                        else:
                            Handle = True
                        if Handle:
                            Match = re.match("!include\s+(.+)", DscLine)
                            if Match:
                                IncludeFilePath = Match.group(1)
                                IncludeFilePath = self.ExpandMacros(IncludeFilePath)
                                PackagesPath = os.getenv("PACKAGES_PATH")
                                if PackagesPath:
                                  for PackagePath in PackagesPath.split(os.pathsep):
                                      IncludeFilePathAbs = os.path.join(os.path.normpath(PackagePath), os.path.normpath(IncludeFilePath))
                                      if os.path.exists(IncludeFilePathAbs):
                                          IncludeDsc  = open(IncludeFilePathAbs, "r")
                                          break
                                else:
                                  IncludeDsc  = open(IncludeFilePath, "r")
                                if IncludeDsc == None:
                                    print("ERROR: Cannot open file '%s'" % IncludeFilePath)
                                    raise SystemExit

                                # Update DscTime when newer DSC time found.
                                CurrentDscTime = os.path.getmtime(os.path.realpath(IncludeDsc.name))
                                if CurrentDscTime > self._DscTime:
                                    self._DscTime = CurrentDscTime

                                NewDscLines = IncludeDsc.readlines()
                                IncludeDsc.close()
                                DscLines = NewDscLines + DscLines
                                del self._DscLines[-1]
                                Offset = 0
                            else:
                                if DscLine.startswith('!'):
                                    print("ERROR: Unrecognized directive for line '%s'" % DscLine)
                                    raise SystemExit
            if not Handle:
                del self._DscLines[-1]
                continue

            if IsDefSect:
                #DEFINE UPD_TOOL_GUID       = 8C3D856A-9BE6-468E-850A-24F7A8D38E09
                #DEFINE FSP_T_UPD_TOOL_GUID = 34686CA3-34F9-4901-B82A-BA630F0714C6
                #DEFINE FSP_M_UPD_TOOL_GUID = 39A250DB-E465-4DD1-A2AC-E2BD3C0E2385
                #DEFINE FSP_S_UPD_TOOL_GUID = CAE3605B-5B34-4C85-B3D7-27D54273C40F
                Match = re.match("^\s*(?:DEFINE\s+)*(\w+)\s*=\s*(.+)", DscLine)
                if Match:
                    self._MacroDict[Match.group(1)] = self.ExpandMacros(Match.group(2))
                    if self.Debug:
                        print ("INFO : DEFINE %s = [ %s ]" % (Match.group(1), self.ExpandMacros(Match.group(2))))
            elif IsPcdSect:
                #gSiPkgTokenSpaceGuid.PcdTxtEnable|FALSE
                #gSiPkgTokenSpaceGuid.PcdOverclockEnable|TRUE
                Match = re.match("^\s*([\w\.]+)\s*\|\s*(\w+)", DscLine)
                if Match:
                    self._PcdsDict[Match.group(1)] = Match.group(2)
                    if self.Debug:
                        print ("INFO : PCD %s = [ %s ]" % (Match.group(1), Match.group(2)))
                    i = 0
                    while i < len(BuildOptionPcd):
                        Match = re.match("\s*([\w\.]+)\s*\=\s*(\w+)", BuildOptionPcd[i])
                        if Match:
                            self._PcdsDict[Match.group(1)] = Match.group(2)
                        i += 1

            elif IsTmpSect:
                # !BSF DEFT:{GPIO_TMPL:START}
                Match = re.match("^\s*#\s+(!BSF)\s+DEFT:{(.+?):(START|END)}", DscLine)
                if Match:
                    if Match.group(3) == 'START' and not TemplateName:
                        TemplateName = Match.group(2).strip()
                        self._BsfTempDict[TemplateName] = []
                    if Match.group(3) == 'END' and (TemplateName == Match.group(2).strip()) and TemplateName:
                        TemplateName = ''
                else:
                    if TemplateName:
                        Match = re.match("^!include\s*(.+)?$", DscLine)
                        if Match:
                            continue
                        self._BsfTempDict[TemplateName].append(DscLine)

            else:
                Match = re.match("^\s*#\s+(!BSF|@Bsf|!HDR)\s+(.+)", DscLine)
                if Match:
                    Remaining = Match.group(2)
                    if Match.group(1) == '!BSF' or Match.group(1) == '@Bsf':
                        Match = re.match("(?:^|.+\s+)PAGES:{(.+?)}", Remaining)
                        if Match:
                            # !BSF PAGES:{HSW:"Haswell System Agent", LPT:"Lynx Point PCH"}
                            PageList = Match.group(1).split(',')
                            for Page in PageList:
                                Page  = Page.strip()
                                Match = re.match("(\w+):\"(.+)\"", Page)
                                if Match != None:
                                    self._CfgPageDict[Match.group(1)] = Match.group(2)

                        Match = re.match("(?:^|.+\s+)BLOCK:{NAME:\"(.+)\"\s*,\s*VER:\"(.+)\"\s*}", Remaining)
                        if Match:
                            self._CfgBlkDict['name'] = Match.group(1)
                            self._CfgBlkDict['ver']  = Match.group(2)

                        for Key in self._BsfKeyList:
                            Match = re.match("(?:^|.+\s+)%s:{(.+?)}" % Key, Remaining)
                            if Match:
                                if Key in ['NAME', 'HELP', 'OPTION'] and Match.group(1).startswith('+'):
                                    ConfigDict[Key.lower()] += Match.group(1)[1:]
                                else:
                                    ConfigDict[Key.lower()]  = Match.group(1)
                    else:
                        for Key in self._HdrKeyList:
                            Match = re.match("(?:^|.+\s+)%s:{(.+?)}" % Key, Remaining)
                            if Match:
                                ConfigDict[Key.lower()]  = Match.group(1)

                Match = re.match("^\s*#\s+@Prompt\s+(.+)", DscLine)
                if Match:
                    ConfigDict['name'] = Match.group(1)

                Match = re.match("^\s*#\s*@ValidList\s*(.+)\s*\|\s*(.+)\s*\|\s*(.+)\s*", DscLine)
                if Match:
                    if Match.group(2).strip() in self._BuidinOption:
                        ConfigDict['option'] = Match.group(2).strip()
                    else:
                        OptionValueList = Match.group(2).split(',')
                        OptionStringList = Match.group(3).split(',')
                        Index = 0
                        for Option in OptionValueList:
                             Option = Option.strip()
                             ConfigDict['option'] = ConfigDict['option'] + str(Option) + ':' + OptionStringList[Index].strip()
                             Index += 1
                             if Index in range(len(OptionValueList)):
                                 ConfigDict['option'] += ', '
                    ConfigDict['type'] = "Combo"

                Match = re.match("^\s*#\s*@ValidRange\s*(.+)\s*\|\s*(.+)\s*-\s*(.+)\s*", DscLine)
                if Match:
                    if "0x" in Match.group(2) or "0x" in Match.group(3):
                        ConfigDict['type'] = "EditNum, HEX, (%s,%s)" % (Match.group(2), Match.group(3))
                    else:
                        ConfigDict['type'] = "EditNum, DEC, (%s,%s)" % (Match.group(2), Match.group(3))

                Match = re.match("^\s*##\s+(.+)", DscLine)
                if Match:
                    ConfigDict['help'] = Match.group(1)

                # Check VPD/UPD
                if IsUpdSect:
                    Match = re.match("^([_a-zA-Z0-9]+).([_a-zA-Z0-9]+)\s*\|\s*(0x[0-9A-F]+|\*)\s*\|\s*(\d+|0x[0-9a-fA-F]+)\s*\|\s*(.+)",DscLine)
                else:
                    Match = re.match("^([_a-zA-Z0-9]+).([_a-zA-Z0-9]+)\s*\|\s*(0x[0-9A-F]+)(?:\s*\|\s*(.+))?",  DscLine)
                if Match:
                    ConfigDict['space']  = Match.group(1)
                    ConfigDict['cname']  = Match.group(2)
                    if Match.group(3) != '*':
                        Hardcode = True
                        Offset =  int (Match.group(3), 16)
                    else:
                        AutoAlign = True

                    if Hardcode and AutoAlign:
                        print("Hardcode and auto-align mixed mode is not supported by GenCfgOpt")
                        raise SystemExit
                    ConfigDict['offset'] = Offset
                    if ConfigDict['order'] == -1:
                        ConfigDict['order'] = ConfigDict['offset'] << 8
                    else:
                        (Major, Minor) = ConfigDict['order'].split('.')
                        ConfigDict['order'] = (int (Major, 16) << 8 ) +  int (Minor, 16)
                    if IsUpdSect:
                        Value = Match.group(5).strip()
                        if Match.group(4).startswith("0x"):
                            Length  = int (Match.group(4), 16)
                        else :
                            Length  = int (Match.group(4))
                        Offset += Length
                    else:
                        Value = Match.group(4)
                        if Value is None:
                            Value = ''
                        Value = Value.strip()
                        if '|' in Value:
                            Match = re.match("^.+\s*\|\s*(.+)", Value)
                            if Match:
                                Value = Match.group(1)
                        Length = -1

                    ConfigDict['length'] = Length
                    Match = re.match("\$\((\w+)\)", Value)
                    if Match:
                        if Match.group(1) in self._MacroDict:
                            Value = self._MacroDict[Match.group(1)]

                    ConfigDict['value']  = Value
                    if (len(Value) > 0)  and (Value[0] == '{'):
                        Value = self.FormatListValue(ConfigDict)

                    if ConfigDict['name']  == '':
                        # Clear BSF specific items
                        ConfigDict['bsfname']   = ''
                        ConfigDict['help']   = ''
                        ConfigDict['type']   = ''
                        ConfigDict['option'] = ''
                    if IsUpdSect and AutoAlign:
                        ItemLength = int(ConfigDict['length'])
                        ItemOffset = int(ConfigDict['offset'])
                        ItemStruct = ConfigDict['struct']
                        Unit = 1
                        if ItemLength in [1, 2, 4, 8] and not ConfigDict['value'].startswith('{'):
                            Unit = ItemLength
                            # If there are 64 bit unit, align to 64
                            if Unit == 8:
                                MaxAlign = 64
                                SizeAlign = 8
                        if ItemStruct != '':
                            UnitDict = {'UINT8':1, 'UINT16':2, 'UINT32':4, 'UINT64':8}
                            if ItemStruct in ['UINT8', 'UINT16', 'UINT32', 'UINT64']:
                                Unit = UnitDict[ItemStruct]
                                # If there are 64 bit unit, align to 64
                                if Unit == 8:
                                    MaxAlign = 64
                                SizeAlign = max(SizeAlign, Unit)
                        if (ConfigDict['embed'].find(':START') != -1):
                            Base = ItemOffset
                        SubOffset = ItemOffset - Base
                        SubRemainder = SubOffset % Unit
                        if SubRemainder:
                            Diff = Unit - SubRemainder
                            Offset = Offset + Diff
                            ItemOffset = ItemOffset + Diff

                        if (ConfigDict['embed'].find(':END') != -1):
                            Remainder = Offset % (MaxAlign/8)   # MaxAlign is either 32 or 64
                            if Remainder:
                                Diff = int((MaxAlign/8) - Remainder)
                                Offset = Offset + Diff
                                ItemOffset = ItemOffset + Diff
                            MaxAlign = 32                       # Reset to default 32 align when struct end
                        if (ConfigDict['cname'] == 'UpdTerminator'):
                            # ItemLength is the size of UpdTerminator
                            # Itemlength might be 16, 32, or 64
                            # Struct align to 64 if UpdTerminator
                            # or struct size is 64 bit, else align to 32
                            Remainder = Offset % max(ItemLength/8, 4, SizeAlign)
                            Offset = Offset + ItemLength
                            if Remainder:
                                Diff = int(max(ItemLength/8, 4, SizeAlign) - Remainder)
                                ItemOffset = ItemOffset + Diff
                        ConfigDict['offset'] = ItemOffset

                    self._CfgItemList.append(ConfigDict.copy())
                    ConfigDict['name']   = ''
                    ConfigDict['find']   = ''
                    ConfigDict['struct'] = ''
                    ConfigDict['embed']  = ''
                    ConfigDict['comment'] = ''
                    ConfigDict['marker'] = ''
                    ConfigDict['order']  = -1
                    ConfigDict['subreg'] = []
                    ConfigDict['option'] = ''
                else:
                    # It could be a virtual item as below
                    # !BSF FIELD:{SerialDebugPortAddress0:1}
                    # or
                    # @Bsf FIELD:{SerialDebugPortAddress0:1b}
                    Match = re.match("^\s*#\s+(!BSF|@Bsf)\s+FIELD:{(.+):(\d+)([Bb])?}", DscLine)
                    if Match:
                        SubCfgDict = ConfigDict.copy()
                        if (Match.group(4) == None) or (Match.group(4) == 'B'):
                          UnitBitLen = 8
                        elif Match.group(4) == 'b':
                          UnitBitLen = 1
                        else:
                          print("ERROR: Invalide BSF FIELD length for line '%s'" % DscLine)
                          raise SystemExit
                        SubCfgDict['cname']  = Match.group(2)
                        SubCfgDict['bitlength'] = int (Match.group(3)) * UnitBitLen
                        if SubCfgDict['bitlength'] > 0:
                            LastItem =  self._CfgItemList[-1]
                            if len(LastItem['subreg']) == 0:
                                SubOffset  = 0
                            else:
                                SubOffset  = LastItem['subreg'][-1]['bitoffset'] + LastItem['subreg'][-1]['bitlength']
                            SubCfgDict['bitoffset'] = SubOffset
                            LastItem['subreg'].append (SubCfgDict.copy())
                        ConfigDict['name']   = ''
        return Error

    def GetBsfBitFields (self, subitem, bytes):
        start = subitem['bitoffset']
        end   = start + subitem['bitlength']
        bitsvalue = ''.join('{0:08b}'.format(i) for i in bytes[::-1])
        bitsvalue = bitsvalue[::-1]
        bitslen   = len(bitsvalue)
        if start > bitslen or end > bitslen:
            raise Exception ("Invalid bits offset [%d,%d] %d for %s" % (start, end, bitslen, subitem['name']))
        return '0x%X' % (int(bitsvalue[start:end][::-1], 2))

    def UpdateSubRegionDefaultValue (self):
        Error = 0
        for Item in self._CfgItemList:
            if len(Item['subreg']) == 0:
                continue
            bytearray = []
            if Item['value'][0] == '{':
                binlist = Item['value'][1:-1].split(',')
                for each in binlist:
                    each = each.strip()
                    if each.startswith('0x'):
                        value = int(each, 16)
                    else:
                        value = int(each)
                    bytearray.append(value)
            else:
                if Item['value'].startswith('0x'):
                    value = int(Item['value'], 16)
                else:
                    value = int(Item['value'])
                idx = 0
                while  idx < Item['length']:
                    bytearray.append(value & 0xFF)
                    value = value >> 8
                    idx = idx + 1
            for SubItem in Item['subreg']:
                valuestr = self.GetBsfBitFields(SubItem, bytearray)
                SubItem['value'] = valuestr
        return Error

    def NoDscFileChange (self, OutPutFile):
        NoFileChange = True
        if not os.path.exists(OutPutFile):
            NoFileChange = False
        else:
            OutputTime = os.path.getmtime(OutPutFile)
            if self._DscTime > OutputTime:
                NoFileChange = False
        return NoFileChange

    def CreateSplitUpdTxt (self, UpdTxtFile):
        GuidList = ['FSP_T_UPD_TOOL_GUID','FSP_M_UPD_TOOL_GUID','FSP_S_UPD_TOOL_GUID']
        SignatureList = ['0x545F', '0x4D5F','0x535F']        #  _T, _M, and _S signature for FSPT, FSPM, FSPS
        for Index in range(len(GuidList)):
            UpdTxtFile = ''
            FvDir = self._FvDir
            if GuidList[Index] not in self._MacroDict:
                self.Error = "%s definition is missing in DSC file" % (GuidList[Index])
                return 1

            if UpdTxtFile == '':
                UpdTxtFile = os.path.join(FvDir, self._MacroDict[GuidList[Index]] + '.txt')

            if (self.NoDscFileChange (UpdTxtFile)):
                # DSC has not been modified yet
                # So don't have to re-generate other files
                self.Error = 'No DSC file change, skip to create UPD TXT file'
                return 256

            TxtFd = open(UpdTxtFile, "w")
            TxtFd.write("%s\n"   % (__copyright_txt__ % date.today().year))

            NextOffset = 0
            SpaceIdx   = 0
            StartAddr  = 0
            EndAddr    = 0
            Default = 'DEFAULT|'
            InRange = False
            for Item in self._CfgItemList:
                if Item['cname'] == 'Signature' and str(Item['value'])[0:6] == SignatureList[Index]:
                    StartAddr = Item['offset']
                    NextOffset = StartAddr
                    InRange = True
                if Item['cname'] == 'UpdTerminator' and InRange == True:
                    EndAddr = Item['offset']
                    InRange = False
            InRange = False
            for Item in self._CfgItemList:
                if Item['cname'] == 'Signature' and str(Item['value'])[0:6] == SignatureList[Index]:
                    InRange = True
                if InRange != True:
                    continue
                if Item['cname'] == 'UpdTerminator':
                    InRange = False
                if Item['region'] != 'UPD':
                    continue
                Offset = Item['offset']
                if StartAddr > Offset or EndAddr < Offset:
                    continue
                if NextOffset < Offset:
                    # insert one line
                    TxtFd.write("%s.UnusedUpdSpace%d|%s0x%04X|0x%04X|{0}\n" % (Item['space'], SpaceIdx, Default, NextOffset - StartAddr, Offset - NextOffset))
                    SpaceIdx = SpaceIdx + 1
                NextOffset = Offset + Item['length']
                TxtFd.write("%s.%s|%s0x%04X|%s|%s\n" % (Item['space'],Item['cname'],Default,Item['offset'] - StartAddr,Item['length'],Item['value']))
            TxtFd.close()
        return 0

    def CreateVarDict (self):
        Error = 0
        self._VarDict = {}
        if len(self._CfgItemList) > 0:
            Item = self._CfgItemList[-1]
            self._VarDict['_LENGTH_'] = '%d' % (Item['offset'] + Item['length'])
        for Item in self._CfgItemList:
            Embed = Item['embed']
            Match = re.match("^(\w+):(\w+):(START|END)", Embed)
            if Match:
                StructName = Match.group(1)
                VarName = '_%s_%s_' % (Match.group(3), StructName)
                if Match.group(3) == 'END':
                    self._VarDict[VarName] = Item['offset'] + Item['length']
                    self._VarDict['_LENGTH_%s_' % StructName] = \
                        self._VarDict['_END_%s_' % StructName] - self._VarDict['_START_%s_' % StructName]
                    if Match.group(2).startswith('TAG_'):
                        if (self.Mode != 'FSP') and (self._VarDict['_LENGTH_%s_' % StructName] % 4):
                            raise Exception("Size of structure '%s' is %d, not DWORD aligned !" % (StructName, self._VarDict['_LENGTH_%s_' % StructName]))
                        self._VarDict['_TAG_%s_' % StructName] = int (Match.group(2)[4:], 16) & 0xFFF
                else:
                    self._VarDict[VarName] = Item['offset']
            if Item['marker']:
                self._VarDict['_OFFSET_%s_' % Item['marker'].strip()] = Item['offset']
        return Error

    def UpdateBsfBitUnit (self, Item):
        BitTotal  = 0
        BitOffset = 0
        StartIdx  = 0
        Unit      = None
        UnitDec   = {1:'BYTE', 2:'WORD', 4:'DWORD', 8:'QWORD'}
        for Idx, SubItem in enumerate(Item['subreg']):
            if Unit is None:
                Unit  = SubItem['bitunit']
            BitLength = SubItem['bitlength']
            BitTotal  += BitLength
            BitOffset += BitLength

            if BitOffset > 64 or BitOffset > Unit * 8:
                break

            if BitOffset == Unit * 8:
                for SubIdx in range (StartIdx, Idx + 1):
                    Item['subreg'][SubIdx]['bitunit'] = Unit
                BitOffset = 0
                StartIdx  = Idx + 1
                Unit      = None

        if BitOffset > 0:
            raise Exception ("Bit fields cannot fit into %s for '%s.%s' !" % (UnitDec[Unit], Item['cname'], SubItem['cname']))

        ExpectedTotal = Item['length'] * 8
        if Item['length'] * 8 != BitTotal:
            raise Exception ("Bit fields total length (%d) does not match length (%d) of '%s' !" % (BitTotal, ExpectedTotal, Item['cname']))

    def UpdateDefaultValue (self):
        Error = 0
        for Idx, Item in enumerate(self._CfgItemList):
            if len(Item['subreg']) == 0:
                Value = Item['value']
                if (len(Value) > 0) and (Value[0] == '{' or Value[0] == "'" or Value[0] == '"'):
                    # {XXX} or 'XXX' strings
                    self.FormatListValue(self._CfgItemList[Idx])
                else:
                  Match = re.match("(0x[0-9a-fA-F]+|[0-9]+)", Value)
                  if not Match:
                    NumValue = self.EvaluateExpress (Value)
                    Item['value'] = '0x%X' % NumValue
            else:
                ValArray = self.ValueToByteArray (Item['value'], Item['length'])
                for SubItem in Item['subreg']:
                    SubItem['value']   = self.GetBsfBitFields(SubItem, ValArray)
                self.UpdateBsfBitUnit (Item)
        return Error

    def ProcessMultilines (self, String, MaxCharLength):
        Multilines = ''
        StringLength = len(String)
        CurrentStringStart = 0
        StringOffset = 0
        BreakLineDict = []
        if len(String) <= MaxCharLength:
            while (StringOffset < StringLength):
                if StringOffset >= 1:
                    if String[StringOffset - 1] == '\\' and String[StringOffset] == 'n':
                        BreakLineDict.append (StringOffset + 1)
                StringOffset += 1
            if BreakLineDict != []:
                for Each in BreakLineDict:
                    Multilines += "  %s\n" % String[CurrentStringStart:Each].lstrip()
                    CurrentStringStart = Each
                if StringLength - CurrentStringStart > 0:
                    Multilines += "  %s\n" % String[CurrentStringStart:].lstrip()
            else:
                Multilines = "  %s\n" % String
        else:
            NewLineStart = 0
            NewLineCount = 0
            FoundSpaceChar = False
            while (StringOffset < StringLength):
                if StringOffset >= 1:
                    if NewLineCount >= MaxCharLength - 1:
                        if String[StringOffset] == ' ' and StringLength - StringOffset > 10:
                            BreakLineDict.append (NewLineStart + NewLineCount)
                            NewLineStart = NewLineStart + NewLineCount
                            NewLineCount = 0
                            FoundSpaceChar = True
                        elif StringOffset == StringLength - 1 and FoundSpaceChar == False:
                            BreakLineDict.append (0)
                    if String[StringOffset - 1] == '\\' and String[StringOffset] == 'n':
                        BreakLineDict.append (StringOffset + 1)
                        NewLineStart = StringOffset + 1
                        NewLineCount = 0
                StringOffset += 1
                NewLineCount += 1
            if BreakLineDict != []:
                BreakLineDict.sort ()
                for Each in BreakLineDict:
                    if Each > 0:
                        Multilines += "  %s\n" % String[CurrentStringStart:Each].lstrip()
                    CurrentStringStart = Each
                if StringLength - CurrentStringStart > 0:
                    Multilines += "  %s\n" % String[CurrentStringStart:].lstrip()
        return Multilines

    def CreateField (self, Item, Name, Length, Offset, Struct, BsfName, Help, Option, BitsLength = None):
        PosName    = 28
        PosComment = 30
        NameLine=''
        HelpLine=''
        OptionLine=''

        if Length == 0 and Name == 'Dummy':
            return '\n'

        IsArray = False
        if Length in [1,2,4,8]:
            Type = "UINT%d" % (Length * 8)
            if Name.startswith("UnusedUpdSpace") and Length != 1:
                IsArray = True
                Type = "UINT8"
        else:
            IsArray = True
            Type = "UINT8"

        if Item and Item['value'].startswith('{'):
            Type = "UINT8"
            IsArray = True

        if Struct != '':
            Type = Struct
            if Struct in ['UINT8','UINT16','UINT32','UINT64']:
                IsArray = True
                Unit = int(Type[4:]) / 8
                Length = Length / Unit
            else:
                IsArray = False

        if IsArray:
            Name = Name + '[%d]' % Length

        if len(Type) < PosName:
            Space1 = PosName - len(Type)
        else:
            Space1 = 1

        if BsfName != '':
            NameLine=" - %s\n" % BsfName
        else:
            NameLine="\n"

        if Help != '':
            HelpLine = self.ProcessMultilines (Help, 80)

        if Option != '':
            OptionLine = self.ProcessMultilines (Option, 80)

        if Offset is None:
            OffsetStr = '????'
        else:
            OffsetStr = '0x%04X' % Offset

        if BitsLength is None:
            BitsLength = ''
        else:
            BitsLength = ' : %d' % BitsLength

        return "\n/** Offset %s%s%s%s**/\n  %s%s%s%s;\n" % (OffsetStr, NameLine, HelpLine, OptionLine, Type, ' ' * Space1, Name, BitsLength)

    def PostProcessBody (self, TextBody):
        NewTextBody = []
        OldTextBody = []
        IncludeLine = False
        StructName  = ''
        VariableName = ''
        IsUpdHdrDefined = False
        IsUpdHeader = False
        for Line in TextBody:
           SplitToLines = Line.splitlines()
           MatchComment = re.match("^/\*\sCOMMENT:(\w+):([\w|\W|\s]+)\s\*/\s([\s\S]*)", SplitToLines[0])
           if MatchComment:
              if MatchComment.group(1) == 'FSP_UPD_HEADER':
                  IsUpdHeader = True
              else:
                  IsUpdHeader = False
              if IsUpdHdrDefined != True or IsUpdHeader != True:
                CommentLine = " " + MatchComment.group(2) + "\n"
                NewTextBody.append("/**" + CommentLine + "**/\n")
              Line = Line[(len(SplitToLines[0]) + 1):]

           Match = re.match("^/\*\sEMBED_STRUCT:(\w+):(\w+):(START|END)\s\*/\s([\s\S]*)", Line)
           if Match:
               Line = Match.group(4)
               if Match.group(1) == 'FSP_UPD_HEADER':
                   IsUpdHeader = True
               else:
                   IsUpdHeader = False

           if Match and Match.group(3) == 'START':
               if IsUpdHdrDefined != True or IsUpdHeader != True:
                   NewTextBody.append ('typedef struct {\n')
               StructName   = Match.group(1)
               VariableName = Match.group(2)
               MatchOffset = re.search('/\*\*\sOffset\s0x([a-fA-F0-9]+)', Line)
               if MatchOffset:
                   Offset = int(MatchOffset.group(1), 16)
               else:
                   Offset = None
               Line
               IncludeLine = True
               OldTextBody.append (self.CreateField (None, VariableName, 0, Offset, StructName, '', '', ''))
           if IncludeLine:
               if IsUpdHdrDefined != True or IsUpdHeader != True:
                   NewTextBody.append (Line)
           else:
               OldTextBody.append (Line)

           if Match and Match.group(3) == 'END':
               if (StructName != Match.group(1)) or (VariableName != Match.group(2)):
                   print ("Unmatched struct name '%s' and '%s' !"  % (StructName, Match.group(1)))
               else:
                   if IsUpdHdrDefined != True or IsUpdHeader != True:
                      NewTextBody.append ('} %s;\n\n' %  StructName)
                      IsUpdHdrDefined = True
               IncludeLine = False
        NewTextBody.extend(OldTextBody)
        return NewTextBody

    def WriteLinesWithoutTailingSpace (self, HeaderFd, Line):
        TxtBody2 = Line.splitlines(True)
        for Line2 in TxtBody2:
            Line2 = Line2.rstrip()
            Line2 += '\n'
            HeaderFd.write (Line2)
        return 0
    def CreateHeaderFile (self, InputHeaderFile):
        FvDir = self._FvDir

        HeaderFileName = 'FspUpd.h'
        HeaderFile = os.path.join(FvDir, HeaderFileName)

        # Check if header needs to be recreated
        if (self.NoDscFileChange (HeaderFile)):
            # DSC has not been modified yet
            # So don't have to re-generate other files
            self.Error = 'No DSC file change, skip to create UPD header file'
            return 256

        TxtBody = []
        for Item in self._CfgItemList:
           if str(Item['cname']) == 'Signature' and Item['length'] == 8:
               Value = int(Item['value'], 16)
               Chars = []
               while Value != 0x0:
                   Chars.append(chr(Value & 0xFF))
                   Value = Value >> 8
               SignatureStr = ''.join(Chars)
               # Signature will be _T / _M / _S for FSPT / FSPM / FSPS accordingly
               if '_T' in SignatureStr[6:6+2]:
                   TxtBody.append("#define FSPT_UPD_SIGNATURE               %s        /* '%s' */\n\n" % (Item['value'], SignatureStr))
               elif '_M' in SignatureStr[6:6+2]:
                   TxtBody.append("#define FSPM_UPD_SIGNATURE               %s        /* '%s' */\n\n" % (Item['value'], SignatureStr))
               elif '_S' in SignatureStr[6:6+2]:
                   TxtBody.append("#define FSPS_UPD_SIGNATURE               %s        /* '%s' */\n\n" % (Item['value'], SignatureStr))
        TxtBody.append("\n")

        for Region in ['UPD']:
            UpdOffsetTable = []
            UpdSignature = ['0x545F', '0x4D5F', '0x535F']   #['_T', '_M', '_S'] signature for FSPT, FSPM, FSPS
            UpdStructure = ['FSPT_UPD', 'FSPM_UPD', 'FSPS_UPD']
            for Item in self._CfgItemList:
                if Item["cname"] == 'Signature' and Item["value"][0:6] in UpdSignature:
                    Item["offset"] = 0 # re-initialize offset to 0 when new UPD structure starting
                    UpdOffsetTable.append (Item["offset"])

            for UpdIdx in range(len(UpdOffsetTable)):
                CommentLine = ""
                for Item in self._CfgItemList:
                    if Item["comment"] != '' and Item["offset"] >= UpdOffsetTable[UpdIdx]:
                        MatchComment = re.match("^(U|V)PD_DATA_REGION:([\w|\W|\s]+)", Item["comment"])
                        if MatchComment and MatchComment.group(1) == Region[0]:
                            CommentLine = " " + MatchComment.group(2) + "\n"
                            TxtBody.append("/**" + CommentLine + "**/\n")
                    elif Item["offset"] >= UpdOffsetTable[UpdIdx] and Item["comment"] == '':
                        Match = re.match("^FSP([\w|\W|\s])_UPD", UpdStructure[UpdIdx])
                        if Match:
                            TxtBody.append("/** Fsp " + Match.group(1) + " UPD Configuration\n**/\n")
                TxtBody.append("typedef struct {\n")
                NextOffset  = 0
                SpaceIdx    = 0
                Offset      = 0

                LastVisible = True
                ResvOffset  = 0
                ResvIdx     = 0
                LineBuffer  = []
                InRange = False
                for Item in self._CfgItemList:
                    if Item['cname'] == 'Signature' and str(Item['value'])[0:6] == UpdSignature[UpdIdx] or Region[0] == 'V':
                        InRange = True
                    if InRange != True:
                        continue
                    if Item['cname'] == 'UpdTerminator':
                        InRange = False

                    if Item['region'] != Region:
                        continue

                    if Item["offset"] < UpdOffsetTable[UpdIdx]:
                        continue

                    NextVisible = LastVisible

                    if LastVisible and (Item['header'] == 'OFF'):
                        NextVisible = False
                        ResvOffset  = Item['offset']
                    elif (not LastVisible) and Item['header'] == 'ON':
                        NextVisible = True
                        Name = "Reserved" + Region[0] + "pdSpace%d" % ResvIdx
                        ResvIdx = ResvIdx + 1
                        TxtBody.append(self.CreateField (Item, Name, Item["offset"] - ResvOffset, ResvOffset, '', '', '', ''))

                    if  Offset < Item["offset"]:
                        if LastVisible:
                            Name = "Unused" + Region[0] + "pdSpace%d" % SpaceIdx
                            LineBuffer.append(self.CreateField (Item, Name, Item["offset"] - Offset, Offset, '', '', '', ''))
                        SpaceIdx = SpaceIdx + 1
                        Offset   = Item["offset"]

                    LastVisible = NextVisible

                    Offset = Offset + Item["length"]
                    if LastVisible:
                        for Each in LineBuffer:
                            TxtBody.append (Each)
                        LineBuffer = []
                        Comment = Item["comment"]
                        Embed = Item["embed"].upper()
                        if Embed.endswith(':START') or Embed.endswith(':END'):
                            if not Comment == '' and Embed.endswith(':START'):
                               Marker = '/* COMMENT:%s */ \n' % Item["comment"]
                               Marker = Marker + '/* EMBED_STRUCT:%s */ ' % Item["embed"]
                            else:
                               Marker = '/* EMBED_STRUCT:%s */ ' % Item["embed"]
                        else:
                            if Embed == '':
                                Marker = ''
                            else:
                                self.Error = "Invalid embedded structure format '%s'!\n" % Item["embed"]
                                return 4
                        Line = Marker + self.CreateField (Item, Item["cname"], Item["length"], Item["offset"], Item['struct'], Item['name'], Item['help'], Item['option'])
                        TxtBody.append(Line)
                    if Item['cname'] == 'UpdTerminator':
                        break
                TxtBody.append("} " + UpdStructure[UpdIdx] + ";\n\n")

        # Handle the embedded data structure
        TxtBody = self.PostProcessBody (TxtBody)

        HeaderTFileName = 'FsptUpd.h'
        HeaderMFileName = 'FspmUpd.h'
        HeaderSFileName = 'FspsUpd.h'

        UpdRegionCheck = ['FSPT', 'FSPM', 'FSPS']     # FSPX_UPD_REGION
        UpdConfigCheck = ['FSP_T', 'FSP_M', 'FSP_S']  # FSP_X_CONFIG, FSP_X_TEST_CONFIG, FSP_X_RESTRICTED_CONFIG
        UpdSignatureCheck = ['FSPT_UPD_SIGNATURE', 'FSPM_UPD_SIGNATURE', 'FSPS_UPD_SIGNATURE']
        ExcludedSpecificUpd = ['FSPT_ARCH_UPD', 'FSPM_ARCH_UPD', 'FSPS_ARCH_UPD']
        ExcludedSpecificUpd1 = ['FSPT_ARCH2_UPD', 'FSPM_ARCH2_UPD', 'FSPS_ARCH2_UPD']

        IncLines = []
        if InputHeaderFile != '':
            if not os.path.exists(InputHeaderFile):
                 self.Error = "Input header file '%s' does not exist" % InputHeaderFile
                 return 6

            InFd         = open(InputHeaderFile, "r")
            IncLines     = InFd.readlines()
            InFd.close()

        for item in range(len(UpdRegionCheck)):
            if UpdRegionCheck[item] == 'FSPT':
                HeaderFd = open(os.path.join(FvDir, HeaderTFileName), "w")
                FileBase = os.path.basename(os.path.join(FvDir, HeaderTFileName))
            elif UpdRegionCheck[item] == 'FSPM':
                HeaderFd = open(os.path.join(FvDir, HeaderMFileName), "w")
                FileBase = os.path.basename(os.path.join(FvDir, HeaderMFileName))
            elif UpdRegionCheck[item] == 'FSPS':
                HeaderFd = open(os.path.join(FvDir, HeaderSFileName), "w")
                FileBase = os.path.basename(os.path.join(FvDir, HeaderSFileName))
            FileName = FileBase.replace(".", "_").upper()
            HeaderFd.write("%s\n"   % (__copyright_h__ % date.today().year))
            HeaderFd.write("#ifndef __%s__\n"   % FileName)
            HeaderFd.write("#define __%s__\n\n" % FileName)
            HeaderFd.write("#include <%s>\n\n" % HeaderFileName)
            HeaderFd.write("#pragma pack(1)\n\n")

            Export = False
            for Line in IncLines:
                Match = re.search ("!EXPORT\s+([A-Z]+)\s+EXTERNAL_BOOTLOADER_STRUCT_(BEGIN|END)\s+", Line)
                if Match:
                    if Match.group(2) == "BEGIN" and Match.group(1) == UpdRegionCheck[item]:
                        Export = True
                        continue
                    else:
                        Export = False
                        continue
                if Export:
                    HeaderFd.write(Line)
            HeaderFd.write("\n")

            Index = 0
            StartIndex = 0
            EndIndex = 0
            StructStart = []
            StructStartWithComment = []
            StructEnd = []
            for Line in TxtBody:
                Index += 1
                Match = re.match("(typedef struct {)", Line)
                if Match:
                    StartIndex = Index - 1
                Match = re.match("}\s([_A-Z0-9]+);", Line)
                if Match and (UpdRegionCheck[item] in Match.group(1) or UpdConfigCheck[item] in Match.group(1)) and (ExcludedSpecificUpd[item] not in Match.group(1)) and (ExcludedSpecificUpd1[item] not in Match.group(1)):
                    EndIndex = Index
                    StructStart.append(StartIndex)
                    StructEnd.append(EndIndex)
            Index = 0
            for Line in TxtBody:
                Index += 1
                for Item in range(len(StructStart)):
                    if Index == StructStart[Item]:
                        Match = re.match("^(/\*\*\s*)", Line)
                        if Match:
                            StructStartWithComment.append(StructStart[Item])
                        else:
                            StructStartWithComment.append(StructStart[Item] + 1)
            Index = 0
            for Line in TxtBody:
                Index += 1
                for Item in range(len(StructStart)):
                    if Index >= StructStartWithComment[Item] and Index <= StructEnd[Item]:
                        self.WriteLinesWithoutTailingSpace(HeaderFd, Line)
            HeaderFd.write("#pragma pack()\n\n")
            HeaderFd.write("#endif\n")
            HeaderFd.close()

        HeaderFd = open(HeaderFile, "w")
        FileBase = os.path.basename(HeaderFile)
        FileName = FileBase.replace(".", "_").upper()
        HeaderFd.write("%s\n"   % (__copyright_h__ % date.today().year))
        HeaderFd.write("#ifndef __%s__\n"   % FileName)
        HeaderFd.write("#define __%s__\n\n" % FileName)
        HeaderFd.write("#include <FspEas.h>\n\n")
        HeaderFd.write("#pragma pack(1)\n\n")

        for item in range(len(UpdRegionCheck)):
            Index = 0
            StartIndex = 0
            EndIndex = 0
            StructStart = []
            StructStartWithComment = []
            StructEnd = []
            for Line in TxtBody:
                Index += 1
                Match = re.match("(typedef struct {)", Line)
                if Match:
                    StartIndex = Index - 1
                Match = re.match("#define\s([_A-Z0-9]+)\s*", Line)
                if Match and (UpdSignatureCheck[item] in Match.group(1) or UpdSignatureCheck[item] in Match.group(1)):
                    StructStart.append(Index - 1)
                    StructEnd.append(Index)
            Index = 0
            for Line in TxtBody:
                Index += 1
                for Item in range(len(StructStart)):
                    if Index == StructStart[Item]:
                        Match = re.match("^(/\*\*\s*)", Line)
                        if Match:
                            StructStartWithComment.append(StructStart[Item])
                        else:
                            StructStartWithComment.append(StructStart[Item] + 1)
            Index = 0
            for Line in TxtBody:
                Index += 1
                for Item in range(len(StructStart)):
                    if Index >= StructStartWithComment[Item] and Index <= StructEnd[Item]:
                        self.WriteLinesWithoutTailingSpace(HeaderFd, Line)
        HeaderFd.write("#pragma pack()\n\n")
        HeaderFd.write("#endif\n")
        HeaderFd.close()

        return 0

    def WriteBsfStruct  (self, BsfFd, Item):
        LogExpr = CLogicalExpression()
        if Item['type'] == "None":
            Space = "gPlatformFspPkgTokenSpaceGuid"
        else:
            Space = Item['space']
        Line = "    $%s_%s" % (Space, Item['cname'])
        Match = re.match("\s*\{([x0-9a-fA-F,\s]+)\}\s*", Item['value'])
        if Match:
            DefaultValue = Match.group(1).strip()
        else:
            DefaultValue = Item['value'].strip()
        if 'bitlength' in Item:
            BsfFd.write("    %s%s%4d bits     $_DEFAULT_ = %s\n" % (Line, ' ' * (64 - len(Line)), Item['bitlength'], DefaultValue))
        else:
            BsfFd.write("    %s%s%4d bytes    $_DEFAULT_ = %s\n" % (Line, ' ' * (64 - len(Line)), Item['length'], DefaultValue))
        TmpList = []
        if  Item['type'] == "Combo":
            if not Item['option'] in self._BuidinOption:
                OptList = Item['option'].split(',')
                for Option in OptList:
                    Option = Option.strip()
                    (OpVal, OpStr) = Option.split(':')
                    test = LogExpr.getNumber (OpVal)
                    if test is None:
                        raise Exception("Selection Index '%s' is not a number" % OpVal)
                    TmpList.append((OpVal, OpStr))
        return  TmpList

    def WriteBsfOption  (self, BsfFd, Item):
        PcdName   = Item['space'] + '_' + Item['cname']
        WriteHelp = 0
        if Item['type'] == "Combo":
            if Item['option'] in self._BuidinOption:
                Options = self._BuidinOption[Item['option']]
            else:
                Options = PcdName
            BsfFd.write('    %s $%s, "%s", &%s,\n' % (Item['type'], PcdName, Item['name'], Options))
            WriteHelp = 1
        elif Item['type'].startswith("EditNum"):
            Match = re.match("EditNum\s*,\s*(HEX|DEC)\s*,\s*\((\d+|0x[0-9A-Fa-f]+)\s*,\s*(\d+|0x[0-9A-Fa-f]+)\)", Item['type'])
            if Match:
                BsfFd.write('    EditNum $%s, "%s", %s,\n' % (PcdName, Item['name'], Match.group(1)))
                WriteHelp = 2
        elif Item['type'].startswith("EditText"):
            BsfFd.write('    %s $%s, "%s",\n' % (Item['type'], PcdName, Item['name']))
            WriteHelp = 1
        elif Item['type'] == "Table":
            Columns = Item['option'].split(',')
            if len(Columns) != 0:
                BsfFd.write('    %s $%s "%s",' % (Item['type'], PcdName, Item['name']))
                for Col in Columns:
                    Fmt = Col.split(':')
                    if len(Fmt) != 3:
                        raise Exception("Column format '%s' is invalid !" % Fmt)
                    try:
                        Dtype = int(Fmt[1].strip())
                    except:
                        raise Exception("Column size '%s' is invalid !" % Fmt[1])
                    BsfFd.write('\n        Column "%s", %d bytes, %s' % (Fmt[0].strip(), Dtype, Fmt[2].strip()))
                BsfFd.write(',\n')
                WriteHelp = 1

        if WriteHelp  > 0:
            HelpLines = Item['help'].split('\\n\\r')
            FirstLine = True
            for HelpLine in HelpLines:
                if FirstLine:
                    FirstLine = False
                    BsfFd.write('        Help "%s"\n' % (HelpLine))
                else:
                    BsfFd.write('             "%s"\n' % (HelpLine))
            if WriteHelp == 2:
                    BsfFd.write('             "Valid range: %s ~ %s"\n' % (Match.group(2), Match.group(3)))

    def GenerateBsfFile (self, BsfFile):

        if BsfFile == '':
            self.Error = "BSF output file '%s' is invalid" % BsfFile
            return 1

        if (self.NoDscFileChange (BsfFile)):
            # DSC has not been modified yet
            # So don't have to re-generate other files
            self.Error = 'No DSC file change, skip to create UPD BSF file'
            return 256

        Error = 0
        OptionDict = {}
        BsfFd      = open(BsfFile, "w")
        BsfFd.write("%s\n" % (__copyright_bsf__ % date.today().year))
        BsfFd.write("%s\n" % self._GlobalDataDef)
        BsfFd.write("StructDef\n")
        NextOffset = -1
        for Item in self._CfgItemList:
            if Item['find'] != '':
                BsfFd.write('\n    Find "%s"\n' % Item['find'])
                NextOffset = Item['offset'] + Item['length']
            if Item['name'] != '':
                if NextOffset != Item['offset']:
                    BsfFd.write("        Skip %d bytes\n" % (Item['offset'] - NextOffset))
                if len(Item['subreg']) > 0:
                    NextOffset =  Item['offset']
                    BitsOffset =  NextOffset * 8
                    for SubItem in Item['subreg']:
                        BitsOffset += SubItem['bitlength']
                        if SubItem['name'] == '':
                            if 'bitlength' in SubItem:
                                BsfFd.write("        Skip %d bits\n" % (SubItem['bitlength']))
                            else:
                                BsfFd.write("        Skip %d bytes\n" % (SubItem['length']))
                        else:
                            Options = self.WriteBsfStruct(BsfFd, SubItem)
                            if len(Options) > 0:
                                OptionDict[SubItem['space']+'_'+SubItem['cname']] = Options

                    NextBitsOffset = (Item['offset'] + Item['length']) * 8
                    if NextBitsOffset > BitsOffset:
                        BitsGap     = NextBitsOffset - BitsOffset
                        BitsRemain  = BitsGap % 8
                        if BitsRemain:
                            BsfFd.write("        Skip %d bits\n" % BitsRemain)
                            BitsGap -= BitsRemain
                        BytesRemain = int(BitsGap / 8)
                        if BytesRemain:
                            BsfFd.write("        Skip %d bytes\n" % BytesRemain)
                    NextOffset = Item['offset'] + Item['length']
                else:
                    NextOffset = Item['offset'] + Item['length']
                    Options = self.WriteBsfStruct(BsfFd, Item)
                    if len(Options) > 0:
                        OptionDict[Item['space']+'_'+Item['cname']] = Options
        BsfFd.write("\nEndStruct\n\n")

        BsfFd.write("%s" % self._BuidinOptionTxt)

        for Each in OptionDict:
            BsfFd.write("List &%s\n" % Each)
            for Item in OptionDict[Each]:
                BsfFd.write('    Selection %s , "%s"\n' % (Item[0], Item[1]))
            BsfFd.write("EndList\n\n")

        BsfFd.write("BeginInfoBlock\n")
        BsfFd.write('    PPVer       "%s"\n' % (self._CfgBlkDict['ver']))
        BsfFd.write('    Description "%s"\n' % (self._CfgBlkDict['name']))
        BsfFd.write("EndInfoBlock\n\n")

        for Each in self._CfgPageDict:
            BsfFd.write('Page "%s"\n' % self._CfgPageDict[Each])
            BsfItems = []
            for Item in self._CfgItemList:
                if Item['name'] != '':
                    if Item['page'] != Each:
                        continue
                    if len(Item['subreg']) > 0:
                        for SubItem in Item['subreg']:
                            if SubItem['name'] != '':
                                BsfItems.append(SubItem)
                    else:
                        BsfItems.append(Item)

            BsfItems.sort(key=lambda x: x['order'])

            for Item in BsfItems:
                self.WriteBsfOption (BsfFd, Item)
            BsfFd.write("EndPage\n\n")

        BsfFd.close()
        return  Error


def Usage():
    print ("GenCfgOpt Version 0.57")
    print ("Usage:")
    print ("    GenCfgOpt  UPDTXT  PlatformDscFile BuildFvDir                 [-D Macros]")
    print ("    GenCfgOpt  HEADER  PlatformDscFile BuildFvDir  InputHFile     [-D Macros]")
    print ("    GenCfgOpt  GENBSF  PlatformDscFile BuildFvDir  BsfOutFile     [-D Macros]")

def Main():
    #
    # Parse the options and args
    #
    i = 1

    GenCfgOpt = CGenCfgOpt()
    while i < len(sys.argv):
        if sys.argv[i].strip().lower() == "--pcd":
            BuildOptionPcd.append(sys.argv[i+1])
            i += 1
        i += 1
    argc = len(sys.argv)
    if argc < 4:
        Usage()
        return 1
    else:
        DscFile = sys.argv[2]
        if not os.path.exists(DscFile):
            print ("ERROR: Cannot open DSC file '%s' !" % DscFile)
            return 2

        OutFile = ''
        if argc > 4:
            if sys.argv[4][0] == '-':
                Start = 4
            else:
                OutFile = sys.argv[4]
                Start = 5
            if argc > Start:
                if GenCfgOpt.ParseMacros(sys.argv[Start:]) != 0:
                    print ("ERROR: Macro parsing failed !")
                    return 3

        FvDir = sys.argv[3]
        if not os.path.exists(FvDir):
            os.makedirs(FvDir)

        if GenCfgOpt.ParseDscFile(DscFile, FvDir) != 0:
            print ("ERROR: %s !" % GenCfgOpt.Error)
            return 5

        if GenCfgOpt.UpdateSubRegionDefaultValue() != 0:
            print ("ERROR: %s !" % GenCfgOpt.Error)
            return 7

        if sys.argv[1] == "UPDTXT":
            Ret = GenCfgOpt.CreateSplitUpdTxt(OutFile)
            if Ret != 0:
                # No change is detected
                if Ret == 256:
                    print ("INFO: %s !" % (GenCfgOpt.Error))
                else :
                    print ("ERROR: %s !" % (GenCfgOpt.Error))
            return Ret
        elif sys.argv[1] == "HEADER":
            Ret = GenCfgOpt.CreateHeaderFile(OutFile)
            if Ret != 0:
                # No change is detected
                if Ret == 256:
                    print ("INFO: %s !" % (GenCfgOpt.Error))
                else :
                    print ("ERROR: %s !" % (GenCfgOpt.Error))
                    return 8
            return Ret
        elif sys.argv[1] == "GENBSF":
            Ret = GenCfgOpt.GenerateBsfFile(OutFile)
            if Ret != 0:
                # No change is detected
                if Ret == 256:
                    print ("INFO: %s !" % (GenCfgOpt.Error))
                else :
                    print ("ERROR: %s !" % (GenCfgOpt.Error))
                    return 9
            return Ret
        else:
            if argc < 5:
                Usage()
                return 1
            print ("ERROR: Unknown command '%s' !" % sys.argv[1])
            Usage()
            return 1
        return 0
    return 0


if __name__ == '__main__':
    sys.exit(Main())