private int parseHeader(string header, ref uint siliconId, ref byte siliconRev, ref byte checksumType)
{
byte[] rowData = fromAscii(header);
if (rowData.Length != 6)
{
return((int)HostStatus.CYRET_ERR_LENGTH);
}
siliconId = ((uint)rowData[0] << 24) | ((uint)rowData[1] << 16) | ((uint)rowData[2] << 8) | ((uint)rowData[3]);
siliconRev = rowData[4];
checksumType = rowData[5];
return((int)HostStatus.CYRET_SUCCESS);
}
private int runAction(BootloaderAction action, Stream fileStream)
{
uint siliconId = 0;
byte siliconRev = 0;
byte checksumType = 0;
int err = (int)HostStatus.CYRET_SUCCESS;
MemoryStream ms = new MemoryStream();
fileStream.CopyTo(ms);
int currentRow = 0;
int rowCount = getRows(ms) - 2;
using (StreamReader cyacdReader = new StreamReader(ms))
{
err = parseHeader(cyacdReader.ReadLine(), ref siliconId, ref siliconRev, ref checksumType);
this.checksumType = (checksumType == 1) ? BootloaderChecksum.CRC : BootloaderChecksum.SUM;
if (err == (int)HostStatus.CYRET_SUCCESS)
{
err = startBootload(siliconId, siliconRev);
}
if (action == BootloaderAction.VERSION)
{
if (err == (int)HostStatus.CYRET_SUCCESS)
{
byte[] getMetadataRes = transferData(createPacket(BootloaderCommand.CMD_GET_METADATA, new byte[1] {
0x00
}), 0x56, true);
if ((BootloaderStatus)getMetadataRes[1] != BootloaderStatus.CYRET_SUCCESS)
{
err = getMetadataRes[1] | 0x4000;
}
else
{
err = ((ushort)getMetadataRes[0x19] << 8) | getMetadataRes[0x1A];
transferData(createPacket(BootloaderCommand.CMD_EXIT_BOOTLOADER, new byte[1] {
0
}), 0, false);
return(err);
}
}
}
else
{
ushort startRow = 0;
while (err == (int)HostStatus.CYRET_SUCCESS)
{
byte arrayId = 0;
ushort rowNum = 0;
ushort size = 0;
byte checksum = 0;
byte[] rowData = null;
err = parseRowData(cyacdReader.ReadLine(), ref arrayId, ref rowNum, ref rowData, ref size, ref checksum);
if (startRow == 0)
{
startRow = rowNum;
}
if (err != (int)HostStatus.CYRET_SUCCESS)
{
break;
}
switch (action)
{
case BootloaderAction.TEST:
err = (int)HostStatus.CYRET_ERR_EOF;
break;
case BootloaderAction.ERASE:
err = eraseRow(arrayId, rowNum);
break;
case BootloaderAction.PROGRAM:
int retry = 5;
do
{
err = programRow(arrayId, rowNum, rowData);
} while (--retry != 0 && err != 0);
if (err == (int)HostStatus.CYRET_SUCCESS)
{
goto case BootloaderAction.VERIFY;
}
break;
case BootloaderAction.VERIFY:
byte checksum2 = (byte)(checksum + arrayId + (ushort)rowNum + (ushort)(rowNum >> 8) + (ushort)rowData.Length + (ushort)(rowData.Length >> 8));
err = verifyRow(arrayId, rowNum, checksum2);
break;
}
if (cancelToken != null && cancelToken.IsCancellationRequested)
{
err = (int)HostStatus.CYRET_ABORT;
}
settings.Update((ushort)((float)currentRow++ / rowCount * 100.0f));
}
}
transferData(createPacket(BootloaderCommand.CMD_EXIT_BOOTLOADER, new byte[1] {
0
}), 0, false);
settings.CloseConnection();
}
if (err == (int)HostStatus.CYRET_ERR_EOF)
{
return((int)HostStatus.CYRET_SUCCESS);
}
return(err);
}
