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ottsemic.h

/*
Object Oriented Mobile Robot Model (OOMRM) C++  Library Copyright (C) 2006  Derek Jones

This library is free software; you can redistribute it  and/or
modify it under the terms of the GNU Lesser General Public
License  as published by the Free Software Foundation; either
version 2.1 of the  License, or (at your option) any later version.

This library is  distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY;  without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A  PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more  details.

You should have received a copy of the GNU Lesser General  Public
License along with this library; if not, write to the Free  Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307  USA

$Id: ottsemic.h,v 1.4 2007/07/18 05:41:55 derek Exp $ 
*/
#ifndef TTSEMIC_H
#define TTSEMIC_H
#include <hardware/ouart.h>
#include <oconsole.h>

// receive buffer (usually only "ERROR" or "OK")
#define EMIC_BUFFSIZE 24


class oTTSemic 
{
public:
  static const char SAY[]; //= { "say=" };
  // For some reason after reset, you get both an OK and an ERROR.
  static const char RESET[]; //= { "reset" };  // soft reset
  static const char VOLUME[]; //= { "volume=" }; // 0-7 (default 4)
  static const char SPEED[]; //= { "speed=" }; // 0-4 (default 2)
  static const char PITCH[]; //= { "pitch=" }; // 0-6 (default 2)
  static const char AUDIO[]; //= { "audio" };

  oTTSemic(IOLINE rx, IOLINE tx);

  void send_command(const char* const icommand, const char* const iparm);

  bool say(const char* const icommand);
  void receive_ack(void);
  bool error(void);
  void reset(void);
  void semaphore(void* isem);
  bool get_any_ack();
protected:
  word RXbuffer[EMIC_BUFFSIZE+1];
  bool _error;
  oUART _tx;
  oUART _rx;
  oTTSemic(void);
private:
  // polls for the character 'cwait' on uart rx channel.  Built-in time-out counter.
  bool wait_char(char cwait);
};


#endif

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