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81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
19 years ago
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/* sys/sio.h -- Utility methods to read/write the SIO
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Copyright 2000 Free Software Foundation, Inc.
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Written by Stephane Carrez (stcarrez@worldnet.fr)
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This file is part of GEL.
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GEL is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GEL is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GEL; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _SYS_SIO_H
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#define _SYS_SIO_H
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#include <sys/param.h>
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#include <sys/ports.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern void serial_init (void);
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/* Return != 0 if there is something to read on the serial line. */
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extern unsigned char serial_receive_pending (void);
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/* Wait until the SIO has finished to send the character. */
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extern void serial_flush (void);
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/* Return != 0 if serial port is ready to send another char. */
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extern unsigned char serial_send_ready (void);
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/* Send the character on the serial line. */
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extern void serial_send (char c);
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/* Wait for a character on the serial line and return it. */
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extern unsigned char serial_recv (void);
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/** Write the string on the serial line.
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@param msg null terminated string to write.
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@see serial_init, serial_send
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*/
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extern void serial_print (const char *msg);
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/** Wait for a string from serial line.
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@param msg buffer that will hold the string.
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@see serial_init, serial_recv
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*/
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extern void serial_getline (char *buf);
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#ifdef mc6811
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//# include <asm-m68hc11/sio.h>
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#endif
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#ifdef mc68hcs12
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# include <asm-m68hcs12/sio.h>
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#elif defined(mc6812)
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//# include <asm-m68hc12/sio.h>
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#endif
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#ifdef __cplusplus
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};
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#endif
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#endif /* _SYS_SIO_H */
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