console.c revision 178173
1/* $NetBSD: uart.c,v 1.2 2007/03/23 20:05:47 dogcow Exp $ */ 2 3/*- 4 * Copyright (c) 2007 Ruslan Ermilov and Vsevolod Lobko. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or 8 * without modification, are permitted provided that the following 9 * conditions are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials provided 15 * with the distribution. 16 * 3. The names of the authors may not be used to endorse or promote 17 * products derived from this software without specific prior 18 * written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY 21 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 23 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 25 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 27 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 29 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 31 * OF SUCH DAMAGE. 32 * 33 */ 34 35#include <sys/cdefs.h> 36__FBSDID("$FreeBSD: head/sys/mips/mips32/adm5120/console.c 178173 2008-04-13 07:44:55Z imp $"); 37 38#include <sys/types.h> 39#include <sys/param.h> 40#include <sys/systm.h> 41#include <sys/kernel.h> 42#include <sys/time.h> 43 44#include <sys/cons.h> 45#include <sys/consio.h> 46 47static cn_probe_t uart_cnprobe; 48static cn_init_t uart_cninit; 49static cn_term_t uart_cnterm; 50static cn_getc_t uart_cngetc; 51static cn_putc_t uart_cnputc; 52 53static void 54uart_cnprobe(struct consdev *cp) 55{ 56 57 sprintf(cp->cn_name, "uart"); 58 cp->cn_pri = CN_NORMAL; 59} 60 61static void 62uart_cninit(struct consdev *cp) 63{ 64 65} 66 67 68void 69uart_cnputc(struct consdev *cp, int c) 70{ 71 char chr; 72 73 chr = c; 74 while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ; 75 (*((volatile unsigned long *)0xb2600000)) = c; 76 while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ; 77} 78 79int 80uart_cngetc(struct consdev * cp) 81{ 82 83 while ((*((volatile unsigned long *)0xb2600018)) & 0x10) ; 84 return (*((volatile unsigned long *)0xb2600000)) & 0xff; 85} 86 87static void 88uart_cnterm(struct consdev * cp) 89{ 90 91} 92 93CONSOLE_DRIVER(uart); 94