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Tools.cs
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Tools.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace VAGSuite
{
public enum CarMakes : int
{
Audi,
BMW,
Volkswagen,
Unknown
}
public sealed class Tools
{
private static volatile Tools instance;
private static object syncRoot = new Object();
public EDCFileType m_currentFileType = EDCFileType.EDC15P; // default
public TransactionLog m_ProjectTransactionLog;
public string m_CurrentWorkingProject = string.Empty;
public ProjectLog m_ProjectLog = new ProjectLog();
public string m_currentfile = string.Empty;
public int m_currentfilelength = 0x80000;
public int m_codeBlock5ID = 0;
public int m_codeBlock6ID = 0;
public int m_codeBlock7ID = 0;
public CarMakes m_carMake = CarMakes.Unknown; // used for EDC17
public List<CodeBlock> codeBlockList = new List<CodeBlock>();
public SymbolCollection m_symbols = new SymbolCollection();
public List<AxisHelper> AxisList = new List<AxisHelper>();
public int TorqueToPowerkW(int torque, int rpm)
{
double power = (torque * rpm) / 7121;
// convert to kW in stead of horsepower
power *= 0.73549875;
return Convert.ToInt32(power);
}
public string ExtractBoschPartnumber(byte[] allBytes)
{
string retval = string.Empty;
try
{
int partnumberAddress = Tools.Instance.findSequence(allBytes, 0, new byte[5] { 0x45, 0x44, 0x43, 0x20, 0x20 }, new byte[5] { 1, 1, 1, 1, 1 });
if (partnumberAddress > 0)
{
// for EDC
retval = System.Text.ASCIIEncoding.ASCII.GetString(allBytes, partnumberAddress + 23, 10).Trim();
if (StripNonAscii(retval).Length < 10)
{
// try again, read from "EDC" id - 0x100 to EDC id + 100 and find 10 digit sequence
retval = FindDigits(allBytes, partnumberAddress - 0x100, partnumberAddress + 0x100, 10);
}
if (retval == string.Empty)
{
// try EDC16, other partnumber struct
retval = FindAscii(allBytes, partnumberAddress - 0x100, partnumberAddress + 0x100, 11);
if (retval.StartsWith("ECM"))
{
retval = FindAscii(allBytes, partnumberAddress - 0x100, partnumberAddress + 0x100, 19);
}
}
}
else
{
partnumberAddress = Tools.Instance.findSequence(allBytes, 0, new byte[4] { 0x30, 0x32, 0x38, 0x31}, new byte[4] { 1, 1, 1, 1 });
if (partnumberAddress > 0)
{
retval = System.Text.ASCIIEncoding.ASCII.GetString(allBytes, partnumberAddress, 10).Trim();
}
}
if (retval == string.Empty)
{
partnumberAddress = Tools.Instance.findSequence(allBytes, 0, new byte[4] { 0x30, 0x32, 0x38, 0x31 }, new byte[4] { 1, 1, 1, 1 });
if (partnumberAddress > 0)
{
retval = System.Text.ASCIIEncoding.ASCII.GetString(allBytes, partnumberAddress, 10).Trim();
}
}
if (retval == string.Empty)
{
// check 512 kB EDC17 file, audi Q7 3.0TDI
partnumberAddress = Tools.Instance.findSequence(allBytes, 0, new byte[7] { 0x45, 0x44, 0x43, 0x31, 0x37, 0x20, 0x20 }, new byte[7] { 1, 1, 1, 1, 1, 1, 1 });
if (partnumberAddress > 0)
{
retval = "EDC17" + System.Text.ASCIIEncoding.ASCII.GetString(allBytes, partnumberAddress - 68, 10).Trim();
}
if (retval == string.Empty)
{
//EDC17_CPx4 = Audi
//EDC17_CPx2 = BMW?
partnumberAddress = Tools.Instance.findSequence(allBytes, 0, Encoding.ASCII.GetBytes("EDC17_"), new byte[6] { 1, 1, 1, 1, 1, 1 });
if (partnumberAddress > 0)
{
retval = "EDC17";
}
}
}
if(retval == string.Empty) {
// 1. General lookup for EDC17-string in file
int pos = Tools.Instance.findSequence(allBytes, 0, Encoding.ASCII.GetBytes("ME(D)/EDC17"), new byte[11] { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 });
if(pos > 0) {
Console.WriteLine("Found ME(D)/EDC17 in firmware!");
retval = "EDC17";
}
// 2. BMW has 0281xxxxxx (boschnumber) written at FD00 and FE33
// 3. BMW has 10373xxxxx (softwarenumber)written at 0x4001A, use this as a backup if boschnumber can't be found
StringBuilder sb1 = new StringBuilder();
StringBuilder sb2 = new StringBuilder();
bool identified = true;
// Check1
for(int offset = 0xFD00;offset < 0xFD00 + 10;offset++) {
byte b = allBytes[offset];
b -= 0x30;
if(b < 0 || b > 9)
identified = false;
sb1.Append(b.ToString());
}
for(int offset = 0xFE33;offset < 0xFE33 + 10;offset++) {
byte b = allBytes[offset];
b -= 0x30;
if(b < 0 || b > 9)
identified = false;
sb2.Append(b.ToString());
}
//Console.WriteLine("sb1=" + sb1.ToString());
//Console.WriteLine("sb2=" + sb2.ToString());
if(identified && sb1.ToString() == sb2.ToString()) {
partnumberAddress = 0xFD00;
retval = sb1.ToString();
}
StringBuilder sb3 = new StringBuilder();
identified = true;
// Check2
for(int offset = 0x4001A;offset < 0x4001A + 10;offset++) {
byte b = allBytes[offset];
b -= 0x30;
if(b < 0 || b > 9)
identified = false;
sb3.Append(b.ToString());
}
//Console.WriteLine("sb3=" + sb3.ToString());
if(identified) {
partnumberAddress = 0x4001A;
retval = sb3.ToString();
}
}
if (retval.StartsWith("EDC17"))
{
if (Tools.Instance.findSequence(allBytes, 0, Encoding.ASCII.GetBytes("EDC17_CPx4"), new byte[10] { 1, 1, 1, 1, 1, 1, 1, 1, 0, 1 }) > 0)
{
Tools.Instance.m_carMake = CarMakes.Audi;
}
else if (Tools.Instance.findSequence(allBytes, 0, Encoding.ASCII.GetBytes("EDC17_CPx2"), new byte[10] { 1, 1, 1, 1, 1, 1, 1, 1, 0, 1 }) > 0)
{
Tools.Instance.m_carMake = CarMakes.BMW;
}
else if (Tools.Instance.findSequence(allBytes, 0, Encoding.ASCII.GetBytes("EDC17_C06"), new byte[9] { 1, 1, 1, 1, 1, 1, 1, 1, 1 }) > 0)
{
Tools.Instance.m_carMake = CarMakes.BMW;
}
}
}
catch (Exception)
{
}
retval = StripNonAscii(retval);
return retval;
}
private string FindAscii(byte[] allBytes, int start, int end, int length)
{
for (int i = start; i < end; i++)
{
string testStr = System.Text.ASCIIEncoding.ASCII.GetString(allBytes, i, length);
testStr = StripNonAsciiCapital(testStr);
if (testStr.Length == length) return testStr;
}
return "";
}
private string FindDigits(byte[] allBytes, int start, int end, int length)
{
for (int i = start; i < end; i++)
{
string testStr = System.Text.ASCIIEncoding.ASCII.GetString(allBytes, i, length);
testStr = StripNonDigit(testStr);
if (testStr.Length == length) return testStr;
}
return "";
}
private string StripNonAsciiCapital(string input)
{
string retval = string.Empty;
foreach (char c in input)
{
if (c >= 0x30 && c <= 0x39) retval += c;
if (c >= 0x41 && c <= 0x5A) retval += c;
}
return retval;
}
private string StripNonDigit(string input)
{
string retval = string.Empty;
foreach (char c in input)
{
if (c >= 0x30 && c <= 0x39) retval += c;
}
return retval;
}
public string StripNonAscii(string input)
{
string retval = string.Empty;
foreach (char c in input)
{
if (c >= 0x30 && c <= 0x39) retval += c;
else if (c >= 0x41 && c <= 0x5A) retval += c;
else if (c >= 0x61 && c <= 0x7A) retval += c;
}
return retval;
}
public EDCFileType DetermineFileType(string fileName, bool isPrimaryFile)
{
byte[] allBytes = File.ReadAllBytes(fileName);
string boschnumber = ExtractBoschPartnumber(allBytes);
//Console.WriteLine("Bosch number: " + boschnumber);
partNumberConverter pnc = new partNumberConverter();
ECUInfo info = pnc.ConvertPartnumber(boschnumber, allBytes.Length);
if (info.EcuType.Contains("EDC15P-6"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC15P6;
return EDCFileType.EDC15P6;
}
else if (info.EcuType.Contains("EDC15P"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC15P;
return EDCFileType.EDC15P;
}
else if (info.EcuType.Contains("EDC15M"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC15M;
return EDCFileType.EDC15M;
}
else if (info.EcuType.Contains("MSA15") || info.EcuType.Contains("EDC15V-5"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.MSA15;
return EDCFileType.MSA15;
}
else if (info.EcuType.Contains("MSA12"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.MSA12;
return EDCFileType.MSA12;
}
else if (info.EcuType.Contains("MSA11"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.MSA11;
return EDCFileType.MSA11;
}
else if (info.EcuType.Contains("MSA6"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.MSA6;
return EDCFileType.MSA6;
}
else if (info.EcuType.Contains("EDC15V"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC15V;
return EDCFileType.EDC15V;
}
if (info.EcuType.Contains("EDC15C"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC15C;
return EDCFileType.EDC15C;
}
else if (info.EcuType.Contains("EDC16"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC16;
return EDCFileType.EDC16;
}
else if (info.EcuType.Contains("EDC17"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC17;
return EDCFileType.EDC17;
}
else if (IsEDC16Partnumber(boschnumber))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC16;
return EDCFileType.EDC16;
}
else if (boschnumber != string.Empty)
{
if (allBytes.Length == 1024 * 1024 * 2)
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC17;
return EDCFileType.EDC17;
}
else if (boschnumber.StartsWith("EDC17"))
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC17;
return EDCFileType.EDC17;
}
else
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC15V;
return EDCFileType.EDC15V;
}
}
else
{
if (isPrimaryFile) m_currentFileType = EDCFileType.EDC16;
return EDCFileType.EDC16; // default to EDC16???
}
}
public bool IsEDC16Partnumber(string partnumber)
{
//03G906021AB
if(partnumber.Length != 11) return false;
if(!isDigit(partnumber[0])) return false;
if(!isDigit(partnumber[1])) return false;
if(!isLetter(partnumber[2])) return false;
if(!isDigit(partnumber[3])) return false;
if(!isDigit(partnumber[4])) return false;
if(!isDigit(partnumber[5])) return false;
if(!isDigit(partnumber[6])) return false;
if(!isDigit(partnumber[7])) return false;
if(!isDigit(partnumber[8])) return false;
if(!isLetter(partnumber[9])) return false;
if(!isLetter(partnumber[10])) return false;
return true;
}
private bool isLetter(char c)
{
if (c >= 0x41 && c <= 0x5A) return true;
return false;
}
private bool isDigit(char c)
{
if (c >= 0x30 && c <= 0x39) return true;
return false;
}
public IEDCFileParser GetParserForFile(string filename, bool isPrimaryFile)
{
IEDCFileParser parser = null;
EDCFileType fileType = DetermineFileType(filename, isPrimaryFile);
switch (fileType)
{
case EDCFileType.EDC15P:
parser = new EDC15PFileParser();
break;
case EDCFileType.EDC15P6:
parser = new EDC15P6FileParser();
break;
case EDCFileType.EDC15V:
parser = new EDC15VFileParser();
break;
case EDCFileType.EDC15C:
parser = new EDC15CFileParser();
break;
case EDCFileType.EDC15M:
parser = new EDC15MFileParser();
break;
case EDCFileType.EDC16:
parser = new EDC16FileParser();
break;
case EDCFileType.EDC17:
parser = new EDC17FileParser();
break;
case EDCFileType.MSA15: //?
case EDCFileType.MSA12:
case EDCFileType.MSA11:
parser = new MSA15FileParser();
break;
case EDCFileType.MSA6:
parser = new MSA6FileParser();
break;
}
return parser;
}
public int PowerToTorque(int power, int rpm)
{
double torque = (power * 7121) / rpm;
return Convert.ToInt32(torque);
}
public int TorqueToPower(int torque, int rpm)
{
double power = (torque * rpm) / 7121;
return Convert.ToInt32(power);
}
public double GetCorrectionFactorForRpm(int rpm, int numberCylinders)
{
double correction = 1;
if (numberCylinders == 6)
{
if (rpm >= 4000) correction = 0.80;
else if (rpm >= 3500) correction = 0.90;
else if (rpm >= 3250) correction = 0.90;
else if (rpm >= 3000) correction = 0.93;
else if (rpm >= 2500) correction = 0.90;
else if (rpm >= 2250) correction = 0.90;
else if (rpm >= 1700) correction = 0.90;
else correction = 0.9;
}
else
{
if (rpm >= 4000) correction = 0.75;
else if (rpm >= 3500) correction = 0.83;
else if (rpm >= 3250) correction = 0.89;
else if (rpm >= 3000) correction = 0.96;
else if (rpm >= 2500) correction = 0.98;
else if (rpm >= 2250) correction = 0.99;
else correction = 1.00;
}
return correction;
}
public int IQToTorque(int IQ, int rpm, int numberCylinders)
{
double tq = Convert.ToDouble(IQ) * 6;
// correct for number of cylinders
tq *= numberCylinders;
tq /= 4;
double correction = GetCorrectionFactorForRpm(rpm, numberCylinders);
tq *= correction;
return Convert.ToInt32(tq);
}
public int TorqueToIQ(int torque, int rpm, int numberCylinders)
{
double iq = Convert.ToDouble(torque) / 6;
// correct for number of cylinders
iq *= 4;
iq /= numberCylinders;
double correction = GetCorrectionFactorForRpm(rpm, numberCylinders);
iq /= correction;
return Convert.ToInt32(iq);
}
public Int64 GetSymbolAddressLike(SymbolCollection curSymbolCollection, string symbolname)
{
foreach (SymbolHelper sh in curSymbolCollection)
{
if (sh.Varname.StartsWith(symbolname) || sh.Userdescription.StartsWith(symbolname))
{
return sh.Flash_start_address;
}
}
return 0;
}
public static Tools Instance
{
get
{
if (instance == null)
{
lock (syncRoot)
{
if (instance == null)
{
instance = new Tools();
}
}
}
return instance;
}
}
public string GetWorkingDirectory()
{
return Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "VAGEDCSuite");
}
public string GetSymbolNameByAddress(Int32 address)
{
foreach (SymbolHelper sh in m_symbols)
{
if (sh.Flash_start_address == address) return sh.Varname;
}
return address.ToString();
}
public string GetSymbolNameByAddressInRange(Int32 address, Int32 addressTo)
{
foreach (SymbolHelper sh in m_symbols)
{
if (sh.Flash_start_address <= address && (sh.Flash_start_address + sh.Length) >= address) return sh.Varname;
if (sh.Flash_start_address <= addressTo && (sh.Flash_start_address + sh.Length) >= addressTo) return sh.Varname;
if (sh.Flash_start_address >= address && (sh.Flash_start_address + sh.Length) <= addressTo) return sh.Varname;
}
return string.Empty;
}
public void savedatatobinary(int address, int length, byte[] data, string filename, bool DoTransActionEntry, string note, EDCFileType type)
{
// depends on filetype (EDC16 is not reversed)
if (type != EDCFileType.EDC16)
{
data = reverseEndian(data);
}
if (address > 0 && address < m_currentfilelength)
{
try
{
byte[] beforedata = readdatafromfile(filename, address, length, type);
FileStream fsi1 = File.OpenWrite(filename);
BinaryWriter bw1 = new BinaryWriter(fsi1);
fsi1.Position = address;
for (int i = 0; i < length; i++)
{
bw1.Write((byte)data.GetValue(i));
}
fsi1.Flush();
bw1.Close();
fsi1.Close();
fsi1.Dispose();
if (m_ProjectTransactionLog != null && DoTransActionEntry)
{
// depends on filetype (EDC16 is not reversed)
if (type != EDCFileType.EDC16)
{
data = reverseEndian(data);
}
TransactionEntry tentry = new TransactionEntry(DateTime.Now, address, length, beforedata, data, 0, 0, note);
m_ProjectTransactionLog.AddToTransactionLog(tentry);
if (m_CurrentWorkingProject != string.Empty)
{
m_ProjectLog.WriteLogbookEntry(LogbookEntryType.TransactionExecuted, GetSymbolNameByAddress(address) + " " + note);
}
}
}
catch (Exception E)
{
frmInfoBox info = new frmInfoBox("Failed to write to binary. Is it read-only? Details: " + E.Message);
}
}
}
public int findSequence(byte[] fileData, int offset, byte[] sequence, byte[] mask)
{
byte data;
int i, max;
i = 0;
max = 0;
int position = offset;
while (position < fileData.Length)
{
data = (byte)fileData[position++];
if (data == sequence[i] || mask[i] == 0)
{
i++;
}
else
{
if (i > max) max = i;
position -= i;
i = 0;
}
if (i == sequence.Length) break;
}
if (i == sequence.Length)
{
return ((int)position - sequence.Length);
}
else
{
return -1;
}
}
public ChecksumResultDetails UpdateChecksum(string filename, bool verifyOnly)
{
byte[] allBytes;
ChecksumResult res = new ChecksumResult(); ;
ChecksumResultDetails result = new ChecksumResultDetails();
EDCFileType fileType = DetermineFileType(filename, false);
switch (fileType)
{
case EDCFileType.EDC15P:
case EDCFileType.EDC15P6:
allBytes = File.ReadAllBytes(filename);
res = CalculateEDC15PChecksum(filename, allBytes, verifyOnly, out result);
break;
case EDCFileType.EDC15V:
// EDC15VM+ is similar to EDC15P
allBytes = File.ReadAllBytes(filename);
res = CalculateEDC15VMChecksum(filename, allBytes, verifyOnly, out result);
break;
case EDCFileType.EDC15C:
//TODO: Implement EDC15C checksum routine here
break;
case EDCFileType.EDC15M:
//TODO: Implement EDC15M checksum routine here
break;
case EDCFileType.EDC16:
//TODO: Implement EDC16x checksum routine here
break;
case EDCFileType.EDC17:
//TODO: Implement EDC17x checksum routine here
break;
case EDCFileType.MSA15:
case EDCFileType.MSA12:
case EDCFileType.MSA11:
//TODO: Implement MSA15 checksum routine here
// this should be Bosch TDI V3.1 (Version 2.04)
/* result.TypeResult = ChecksumType.VAG_EDC15P_V41;
allBytes = File.ReadAllBytes(filename);
//allBytes = reverseEndian(allBytes);
MSA15_checksum msa15chks = new MSA15_checksum();
res = msa15chks.tdi41_checksum_search(allBytes, (uint)allBytes.Length, false);
result.NumberChecksumsTotal = msa15chks.ChecksumsFound;
result.NumberChecksumsFail = msa15chks.ChecksumsIncorrect;
result.NumberChecksumsOk = msa15chks.ChecksumsFound - msa15chks.ChecksumsIncorrect;
if (res == ChecksumResult.ChecksumOK)
{
//Console.WriteLine("Checksum matched");
result.CalculationOk = true;
}
else if (res == ChecksumResult.ChecksumFail)
{
Console.WriteLine("UpdateChecksum: Checksum failed " + filename);
if (!verifyOnly)
{
File.WriteAllBytes(filename, allBytes);
result.CalculationOk = true;
Console.WriteLine("UpdateChecksum: Checksum fixed");
}
}*/
break;
case EDCFileType.MSA6:
//TODO: Implement MSA6 checksum routine here
break;
}
if (result.CalculationOk) result.CalculationResult = ChecksumResult.ChecksumOK;
return result;
}
private ChecksumResult CalculateEDC15PChecksum(string filename, byte[] allBytes, bool verifyOnly, out ChecksumResultDetails result)
{
ChecksumResult res = new ChecksumResult();
// checksum for EDC15P is implemented
result = new ChecksumResultDetails();
result.CalculationResult = ChecksumResult.ChecksumFail; // default = failed
result.TypeResult = ChecksumType.VAG_EDC15P_V41;
if (allBytes.Length != 0x80000) return res;
if (allBytes[0x50008] == 'V' && allBytes[0x50009] == '4' && allBytes[0x5000A] == '.' && allBytes[0x5000B] == '1')
{
// checksum V4.1 rev.1
result.TypeResult = ChecksumType.VAG_EDC15P_V41;
}
else if (allBytes[0x58008] == 'V' && allBytes[0x58009] == '4' && allBytes[0x5800A] == '.' && allBytes[0x5800B] == '1')
{
// checksum V4.1 rev.2
result.TypeResult = ChecksumType.VAG_EDC15P_V41V2;
}
//allBytes = reverseEndian(allBytes);
EDC15P_checksum chks = new EDC15P_checksum();
if (result.TypeResult == ChecksumType.VAG_EDC15P_V41)
{
res = chks.tdi41_checksum_search(allBytes, (uint)allBytes.Length, false);
}
else
{
res = chks.tdi41v2_checksum_search(allBytes, (uint)allBytes.Length, false);
}
result.NumberChecksumsTotal = chks.ChecksumsFound;
result.NumberChecksumsFail = chks.ChecksumsIncorrect;
result.NumberChecksumsOk = chks.ChecksumsFound - chks.ChecksumsIncorrect;
if (res == ChecksumResult.ChecksumOK)
{
Console.WriteLine("Checksum V4.1 matched");
result.CalculationOk = true;
}
else if (res == ChecksumResult.ChecksumFail)
{
Console.WriteLine("UpdateChecksum: Checksum failed " + filename);
if (!verifyOnly)
{
File.WriteAllBytes(filename, allBytes);
result.CalculationOk = true;
Console.WriteLine("UpdateChecksum: Checksum fixed");
}
}
else if (res == ChecksumResult.ChecksumTypeError)
{
result.TypeResult = ChecksumType.VAG_EDC15P_V41_2002;
EDC15P_checksum chks2002 = new EDC15P_checksum();
allBytes = File.ReadAllBytes(filename);
//chks2002.DumpChecksumLocations("V41 2002", allBytes); // for debug info only
ChecksumResult res2002 = chks2002.tdi41_2002_checksum_search(allBytes, (uint)allBytes.Length, false);
result.NumberChecksumsTotal = chks2002.ChecksumsFound;
result.NumberChecksumsFail = chks2002.ChecksumsIncorrect;
result.NumberChecksumsOk = chks2002.ChecksumsFound - chks2002.ChecksumsIncorrect;
if (res2002 == ChecksumResult.ChecksumOK)
{
Console.WriteLine("Checksum 2002 matched " + filename);
result.CalculationOk = true;
}
else if (res2002 == ChecksumResult.ChecksumFail)
{
Console.WriteLine("UpdateChecksum: Checksum 2002 failed " + filename);
if (!verifyOnly)
{
File.WriteAllBytes(filename, allBytes);
result.CalculationOk = true;
Console.WriteLine("UpdateChecksum: Checksum fixed");
}
}
else if (res2002 == ChecksumResult.ChecksumTypeError)
{
// unknown checksum type
result.CalculationOk = false;
result.CalculationResult = ChecksumResult.ChecksumTypeError;
result.TypeResult = ChecksumType.Unknown;
}
}
return res;
}
private ChecksumResult CalculateEDC15VMChecksum(string filename, byte[] allBytes, bool verifyOnly, out ChecksumResultDetails result)
{
ChecksumResult res = new ChecksumResult();
result = new ChecksumResultDetails();
result.CalculationResult = ChecksumResult.ChecksumFail; // default = failed
result.TypeResult = ChecksumType.VAG_EDC15VM_V41;
if (/*allBytes.Length != 0x40000 && */allBytes.Length != 0x80000 && allBytes.Length != 0x100000) return res;
if (allBytes.Length >= 0x80000)
{
if (allBytes[0x50008] == 'V' && allBytes[0x50009] == '4' && allBytes[0x5000A] == '.' && allBytes[0x5000B] == '1')
{
// checksum V4.1 rev.1
result.TypeResult = ChecksumType.VAG_EDC15VM_V41;
}
else if (allBytes[0x58008] == 'V' && allBytes[0x58009] == '4' && allBytes[0x5800A] == '.' && allBytes[0x5800B] == '1')
{
// checksum V4.1 rev.2
result.TypeResult = ChecksumType.VAG_EDC15VM_V41V2;
}
}
//allBytes = reverseEndian(allBytes);
EDC15VM_checksum chks = new EDC15VM_checksum();
if (result.TypeResult == ChecksumType.VAG_EDC15VM_V41)
{
res = chks.tdi41_checksum_search(allBytes, (uint)allBytes.Length, false);
}
else
{
res = chks.tdi41v2_checksum_search(allBytes, (uint)allBytes.Length, false);
}
result.NumberChecksumsTotal = chks.ChecksumsFound;
result.NumberChecksumsFail = chks.ChecksumsIncorrect;
result.NumberChecksumsOk = chks.ChecksumsFound - chks.ChecksumsIncorrect;
if (res == ChecksumResult.ChecksumOK)
{
Console.WriteLine("Checksum V4.1 matched");
result.CalculationOk = true;
}
else if (res == ChecksumResult.ChecksumFail)
{
Console.WriteLine("UpdateChecksum: Checksum failed " + filename);
if (!verifyOnly)
{
File.WriteAllBytes(filename, allBytes);
result.CalculationOk = true;
Console.WriteLine("UpdateChecksum: Checksum fixed");
}
}
else if (res == ChecksumResult.ChecksumTypeError)
{
result.TypeResult = ChecksumType.VAG_EDC15VM_V41_2002;
EDC15VM_checksum chks2002 = new EDC15VM_checksum();
allBytes = File.ReadAllBytes(filename);
ChecksumResult res2002 = chks2002.tdi41_2002_checksum_search(allBytes, (uint)allBytes.Length, false);
result.NumberChecksumsTotal = chks2002.ChecksumsFound;
result.NumberChecksumsFail = chks2002.ChecksumsIncorrect;
result.NumberChecksumsOk = chks2002.ChecksumsFound - chks2002.ChecksumsIncorrect;
if (res2002 == ChecksumResult.ChecksumOK)
{
Console.WriteLine("Checksum 2002 matched " + filename);
result.CalculationOk = true;
}
else if (res2002 == ChecksumResult.ChecksumFail)
{
Console.WriteLine("UpdateChecksum: Checksum 2002 failed " + filename);
if (!verifyOnly)
{
File.WriteAllBytes(filename, allBytes);
result.CalculationOk = true;
Console.WriteLine("UpdateChecksum: Checksum fixed");
}
}
else if (res2002 == ChecksumResult.ChecksumTypeError)
{
// unknown checksum type
result.CalculationOk = false;
result.CalculationResult = ChecksumResult.ChecksumTypeError;
result.TypeResult = ChecksumType.Unknown;
}
}
return res;
}
public void savedatatobinary(int address, int length, byte[] data, string filename, bool DoTransActionEntry, EDCFileType type)
{
// depends on filetype (EDC16 is not reversed)
if (type != EDCFileType.EDC16)
{
data = reverseEndian(data);
}
if (address > 0 && address < Tools.Instance.m_currentfilelength)
{
try
{
byte[] beforedata = readdatafromfile(filename, address, length, type);
FileStream fsi1 = File.OpenWrite(filename);
BinaryWriter bw1 = new BinaryWriter(fsi1);
fsi1.Position = address;
for (int i = 0; i < length; i++)
{
bw1.Write((byte)data.GetValue(i));
}
fsi1.Flush();
bw1.Close();
fsi1.Close();
fsi1.Dispose();
}
catch (Exception E)
{
// MessageBox.Show("Failed to write to binary. Is it read-only? Details: " + E.Message);
}
}
}
public int[] readdatafromfileasint(string filename, int address, int length, EDCFileType type)
{
int[] retval = new int[length];
FileStream fsi1 = File.OpenRead(filename);
while (address > fsi1.Length) address -= (int)fsi1.Length;
BinaryReader br1 = new BinaryReader(fsi1);
fsi1.Position = address;
string temp = string.Empty;
for (int i = 0; i < length; i++)
{
if (type != EDCFileType.EDC16)
{
int iVal = Convert.ToInt32(br1.ReadByte());
iVal += Convert.ToInt32(br1.ReadByte()) * 256;
retval.SetValue(iVal, i);
}
else
{
int iVal = Convert.ToInt32(br1.ReadByte()) * 256;
iVal += Convert.ToInt32(br1.ReadByte());
retval.SetValue(iVal, i);
}
}
// little endian, reverse bytes
//retval = reverseEndian(retval);
fsi1.Flush();
br1.Close();
fsi1.Close();
fsi1.Dispose();
return retval;
}
public byte[] reverseEndian(byte[] retval)
{
byte[] ret = new byte[retval.Length];
try
{
if (retval.Length > 0 && retval.Length % 2 == 0)
{
for (int i = 0; i < retval.Length; i += 2)
{
byte b1 = retval[i];
byte b2 = retval[i + 1];
ret[i] = b2;
ret[i + 1] = b1;
}
}
}
catch (Exception E)
{
}
return ret;
}
public int[] reverseEndian(int[] retval)
{
int[] ret = new int[retval.Length];
try
{
if (retval.Length > 0 && retval.Length % 2 == 0)
{
for (int i = 0; i < retval.Length; i += 2)
{
int b1 = retval[i];
int b2 = retval[i + 1];
ret[i] = b2;
ret[i + 1] = b1;
}
}
}
catch (Exception E)
{
}
return ret;
}
public byte[] readdatafromfile(string filename, int address, int length, EDCFileType type)
{
byte[] retval = new byte[length];
try
{
FileStream fsi1 = File.OpenRead(filename);
while (address > fsi1.Length) address -= (int)fsi1.Length;
BinaryReader br1 = new BinaryReader(fsi1);
fsi1.Position = address;
string temp = string.Empty;
for (int i = 0; i < length; i++)
{
retval.SetValue(br1.ReadByte(), i);
}
// depends on filetype (EDC16 is not reversed)
if (type != EDCFileType.EDC16)
{
retval = reverseEndian(retval);
}
fsi1.Flush();
br1.Close();
fsi1.Close();
fsi1.Dispose();
}
catch (Exception E)
{
Console.WriteLine(E.Message);