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