Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/runfw/@/boot/arm/at91/libat91/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/runfw/@/boot/arm/at91/libat91/putchar.c |
/*- * Copyright (c) 2006 M. Warner Losh. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This software is derived from software provided by kwikbyte without * copyright as follows: * * No warranty, expressed or implied, is included with this software. It is * provided "AS IS" and no warranty of any kind including statutory or aspects * relating to merchantability or fitness for any purpose is provided. All * intellectual property rights of others is maintained with the respective * owners. This software is not copyrighted and is intended for reference * only. * * $FreeBSD: release/9.1.0/sys/boot/arm/at91/libat91/putchar.c 163533 2006-10-20 09:12:05Z imp $ */ #include "at91rm9200.h" #include "at91rm9200_lowlevel.h" #include "lib.h" /* * void putchar(int ch) * Writes a character to the DBGU port. It assumes that DBGU has * already been initialized. */ void putchar(int ch) { AT91PS_USART pUSART = (AT91PS_USART)AT91C_BASE_DBGU; while (!(pUSART->US_CSR & AT91C_US_TXRDY)) continue; pUSART->US_THR = (ch & 0xFF); } void xputchar(int ch) { if (ch == '\n') putchar('\r'); putchar(ch); }