61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
|
/***************************************************************************
|
||
|
* __________ __ ___.
|
||
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
* \/ \/ \/ \/ \/
|
||
|
* $Id$
|
||
|
*
|
||
|
* Copyright (C) 2002 by Alan Korr & Nick Robinson
|
||
|
*
|
||
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
* KIND, either express or implied.
|
||
|
*
|
||
|
****************************************************************************/
|
||
|
#include <stdio.h>
|
||
|
#include <stdlib.h>
|
||
|
#include <stdarg.h>
|
||
|
|
||
|
#include "config.h"
|
||
|
#include "cpu.h"
|
||
|
#include "system.h"
|
||
|
#include "serial.h"
|
||
|
|
||
|
void serial_setup (void)
|
||
|
{
|
||
|
UCR0 = 0x30; /* Reset transmitter */
|
||
|
UCSR0 = 0xdd; /* Timer mode */
|
||
|
|
||
|
UCR0 = 0x10; /* Reset pointer */
|
||
|
UMR0 = 0x13; /* No parity, 8 bits */
|
||
|
UMR0 = 0x07; /* 1 stop bit */
|
||
|
|
||
|
UCR0 = 0x04; /* Tx enable */
|
||
|
}
|
||
|
|
||
|
int tx_rdy(void)
|
||
|
{
|
||
|
if(USR0 & 0x04)
|
||
|
return 1;
|
||
|
else
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
int rx_rdy(void)
|
||
|
{
|
||
|
/* a dummy */
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
void tx_writec(unsigned char c)
|
||
|
{
|
||
|
UTB0 = c;
|
||
|
}
|
||
|
|