2 * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
3 * Scott McNutt <smcnutt@psyent.com>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 static nios_uart_t *uart = (nios_uart_t *)CFG_NIOS_CONSOLE;
31 #if defined(CFG_NIOS_FIXEDBAUD)
33 /* Everything's already setup for fixed-baud PTF
36 void serial_setbrg( void ){ return; }
37 int serial_init( void ) { return(0);}
41 void serial_setbrg( void )
43 DECLARE_GLOBAL_DATA_PTR;
46 div = (CONFIG_SYS_CLK_FREQ/gd->baudrate)-1;
51 int serial_init( void )
57 #endif /* CFG_NIOS_FIXEDBAUD */
60 void serial_putc( char c )
64 while( (uart->status & NIOS_UART_TRDY) == 0 )
66 uart->txdata = (unsigned char)c;
69 void serial_puts( const char *s )
76 int serial_tstc( void )
78 return( uart->status & NIOS_UART_RRDY);
81 int serial_getc( void )
83 while( serial_tstc() == 0 )
85 return( uart->rxdata & 0x00ff );