ti92.h

program to trasmit data to a TI92 with the TI Graph-Link

/*
 *   Trans92 - programme de communication Linux-TI92
 *
 *   copyright (c) 1998  Emmanuel Beffara
 *
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

//
// d閒inition de la classe TI92 pour les communications
//

class TI92 {
 protected:
  int etat,ncl;   // pour le diboguage
  unsigned char _get();
  void _read(unsigned char*,long);
  void _put(unsigned char);
  void _write(unsigned char*,long);
  
  int fd;         // identificateur pour les param鑤res de terminal
  fstream *str;   // flux repr閟entant la TI
  
  // liste des signaux du protocole

  enum SIGNAL {
    // Rm_* = remote-contr鬺eur, Pl_* = machine pilot閑
    // Tr_* = transfert entre machines
    
    Rm_BACKUP = 0x0906,         // annonce d'un envoi de backup
    Rm_DEMANDE = 0x0909,        // demande d'un nom de var/r閜
                                //   ou des donn閑s d'une variable
    Rm_DATA = 0x0915,           // donn閑s d'une variable
    Rm_OK = 0x0956,             // accus