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