sio.h

00001 /* sys/sio.h -- Utility methods to read/write the SIO
00002    Copyright 2000 Free Software Foundation, Inc.
00003    Written by Stephane Carrez (stcarrez@worldnet.fr)
00004 
00005 This file is part of GEL.
00006 
00007 GEL is free software; you can redistribute it and/or modify
00008 it under the terms of the GNU General Public License as published by
00009 the Free Software Foundation; either version 2, or (at your option)
00010 any later version.
00011 
00012 GEL is distributed in the hope that it will be useful,
00013 but WITHOUT ANY WARRANTY; without even the implied warranty of
00014 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015 GNU General Public License for more details.
00016 
00017 You should have received a copy of the GNU General Public License
00018 along with GEL; see the file COPYING.  If not, write to
00019 the Free Software Foundation, 59 Temple Place - Suite 330,
00020 Boston, MA 02111-1307, USA.  */
00021 
00022 #ifndef _SYS_SIO_H
00023 #define _SYS_SIO_H
00024 
00025 #include <sys/param.h>
00026 #include <sys/ports.h>
00027 
00028 #ifdef __cplusplus
00029 extern "C" {
00030 #endif
00031 
00032 extern void serial_init (void);
00033 extern unsigned char serial_recv (void);
00034 extern void serial_send (char);
00035 extern void serial_flush (void);
00036 extern unsigned char serial_receive_pending (void);
00037   
00038 #ifdef mc6811
00039 # include <asm-m68hc11/sio.h>
00040 #endif
00041 
00042 #ifdef mc6812
00043 # include <asm-m68hc12/sio.h>
00044 #endif
00045 
00046 extern void serial_init (void);
00047 
00048 /* Return != 0 if there is something to read on the serial line.  */
00049 extern unsigned char serial_receive_pending (void);
00050 
00051 /* Wait until the SIO has finished to send the character.  */
00052 extern void serial_flush (void);
00053 
00054 /* Send the character on the serial line.  */
00055 extern void serial_send (char c);
00056 
00057 /* Wait for a character on the serial line and return it.  */
00058 extern unsigned char serial_recv (void);
00059 
00066 extern void serial_print (const char *msg);
00067 
00074 extern void serial_getline (char *buf);
00075 
00076 #ifdef __cplusplus
00077 };
00078 #endif
00079 #endif /* _SYS_SIO_H */
00080