bool CTouchTranslator::TranslateAction(int window, unsigned int touchCommand, int touchPointers, unsigned int &actionId, std::string &actionString)
{
unsigned int touchActionKey = GetTouchActionKey(touchCommand, touchPointers);
actionId = GetActionID(window, touchActionKey, actionString);
return actionId != ACTION_NONE;
}
/*--------------------------------------------------------------------------------------------------
Name : AvcReadMessage
Description : Read incoming messages on the AVC LAN bus.
Argument(s) : None.
Return value : (AvcActionID) -> Action ID associated with this message.
--------------------------------------------------------------------------------------------------*/
AvcActionID AvcReadMessage ( void )
{
ReadBits( 1 ); // Start bit.
LedOn();
Broadcast = ReadBits( 1 );
MasterAddress = ReadBits( 12 );
bool p = ParityBit;
if ( p != ReadBits( 1 ) )
{
UsartPutCStr( PSTR("AvcReadMessage: Parity error @ MasterAddress!\r\n") );
return (AvcActionID)FALSE;
}
SlaveAddress = ReadBits( 12 );
p = ParityBit;
if ( p != ReadBits( 1 ) )
{
UsartPutCStr( PSTR("AvcReadMessage: Parity error @ SlaveAddress!\r\n") );
return (AvcActionID)FALSE;
}
bool forMe = ( SlaveAddress == MY_ADDRESS );
// In point-to-point communication, sender issues an ack bit with value '1' (20us). Receiver
// upon acking will extend the bit until it looks like a '0' (32us) on the bus. In broadcast
// mode, receiver disregards the bit.
if ( forMe )
{
// Send ACK.
Send1BitWord( 0 );
}
else
{
ReadBits( 1 );
}
Control = ReadBits( 4 );
p = ParityBit;
if ( p != ReadBits( 1 ) )
{
UsartPutCStr( PSTR("AvcReadMessage: Parity error @ Control!\r\n") );
return (AvcActionID)FALSE;
}
if ( forMe )
{
// Send ACK.
Send1BitWord( 0 );
}
else
{
ReadBits( 1 );
}
DataSize = ReadBits( 8 );
p = ParityBit;
if ( p != ReadBits( 1 ) )
{
UsartPutCStr( PSTR("AvcReadMessage: Parity error @ DataSize!\r\n") );
return (AvcActionID)FALSE;
}
if ( forMe )
{
// Send ACK.
Send1BitWord( 0 );
}
else
{
ReadBits( 1 );
}
byte i;
for ( i = 0; i < DataSize; i++ )
{
Data[i] = ReadBits( 8 );
p = ParityBit;
if ( p != ReadBits( 1 ) )
{
sprintf( UsartMsgBuffer, "AvcReadMessage: Parity error @ Data[%d]\r\n", i );
UsartPutStr( UsartMsgBuffer );
return (AvcActionID)FALSE;
}
if ( forMe )
{
// Send ACK.
Send1BitWord( 0 );
}
else
{
ReadBits( 1 );
}
}
// Dump message on terminal.
if ( forMe ) UsartPutCStr( PSTR("AvcReadMessage: This message is for me!\r\n") );
AvcActionID actionID = GetActionID();
// switch ( actionID ) {
// case /* value */:
// }
DumpRawMessage( FALSE );
LedOff();
return actionID;
}
