1/*-
2 * Copyright (c) 2006 M. Warner Losh.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * This software is derived from software provided by kwikbyte without
25 * copyright as follows:
26 *
27 * No warranty, expressed or implied, is included with this software.  It is
28 * provided "AS IS" and no warranty of any kind including statutory or aspects
29 * relating to merchantability or fitness for any purpose is provided.  All
30 * intellectual property rights of others is maintained with the respective
31 * owners.  This software is not copyrighted and is intended for reference
32 * only.
33 *
34 * $FreeBSD$
35 */
36
37#include "at91rm9200.h"
38#include "at91rm9200_lowlevel.h"
39#include "lib.h"
40
41/*
42 * void putchar(int ch)
43 * Writes a character to the DBGU port.  It assumes that DBGU has
44 * already been initialized.
45 */
46void
47putchar(int ch)
48{
49	AT91PS_USART pUSART = (AT91PS_USART)AT91C_BASE_DBGU;
50
51	while (!(pUSART->US_CSR & AT91C_US_TXRDY))
52		continue;
53	pUSART->US_THR = (ch & 0xFF);
54}
55
56void
57xputchar(int ch)
58{
59    if (ch == '\n')
60	putchar('\r');
61    putchar(ch);
62}
63