mdw@git.distorted.org.uk Git - jog/blob - serial.h

   1 /* -*-c-*-
   2  *
   3  * $Id: serial.h,v 1.1 2002/01/25 19:34:45 mdw Exp $
   4  *
   5  * Common serial functionality
   6  *
   7  * (c) 2001 Mark Wooding
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of Jog: Programming for a jogging machine.
  13  *
  14  * Jog is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * Jog is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with Jog; if not, write to the Free Software Foundation,
  26  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27  */
  28
  29 /*----- Revision history --------------------------------------------------*
  30  *
  31  * $Log: serial.h,v $
  32  * Revision 1.1  2002/01/25 19:34:45  mdw
  33  * Initial revision
  34  *
  35  */
  36
  37 #ifndef SERIAL_H
  38 #define SERIAL_H
  39
  40 #ifdef __cplusplus
  41   extern "C" {
  42 #endif
  43
  44 /*----- Header files ------------------------------------------------------*/
  45
  46 #ifdef HAVE_CONFIG_H
  47 #  include "config.h"
  48 #endif
  49
  50 /*----- Data structures ---------------------------------------------------*/
  51
  52 typedef struct serial_config {
  53   unsigned long baud;                   /* Baud rate */
  54   unsigned wordlen;                     /* Word length */
  55   unsigned parity;                      /* Parity type (magic constant) */
  56   unsigned stopbits;                    /* Number of stop bits */
  57 } serial_config;
  58
  59 enum { PARITY_NONE, PARITY_ODD, PARITY_EVEN };
  60
  61 #define SERIAL_INIT { 9600, 8, PARITY_NONE, 1 }
  62
  63 /*----- Functions provided ------------------------------------------------*/
  64
  65 /* --- @serial_parse@ --- *
  66  *
  67  * Arguments:   @const char *p@ = configuration string to parse
  68  *              @serial_config *sc@ = pointer to serial config structure
  69  *
  70  * Returns:     Zero if OK, or @-1@ on error.
  71  *
  72  * Use:         Parses a serial config string into something more
  73  *              reasonable.  The config structure should have been
  74  *              initialized to something sensible (e.g., @SERIAL_INIT@)
  75  *              already.
  76  */
  77
  78 extern int serial_parse(const char */*p*/, serial_config */*sc*/);
  79
  80 /*----- That's all, folks -------------------------------------------------*/
  81
  82 #ifdef __cplusplus
  83   }
  84 #endif
  85
  86 #endif