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: releng/10.2/sys/mips/adm5120/console.c 228631 2011-12-17 15:08:43Z avg $"); 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; 52static cn_grab_t uart_cngrab; 53static cn_ungrab_t uart_cnungrab; 54 55static void 56uart_cnprobe(struct consdev *cp) 57{ 58 59 sprintf(cp->cn_name, "uart"); 60 cp->cn_pri = CN_NORMAL; 61} 62 63static void 64uart_cninit(struct consdev *cp) 65{ 66 67} 68 69 70void 71uart_cnputc(struct consdev *cp, int c) 72{ 73 char chr; 74 75 chr = c; 76 while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ; 77 (*((volatile unsigned long *)0xb2600000)) = c; 78 while ((*((volatile unsigned long *)0xb2600018)) & 0x20) ; 79} 80 81int 82uart_cngetc(struct consdev * cp) 83{ 84 85 while ((*((volatile unsigned long *)0xb2600018)) & 0x10) ; 86 return (*((volatile unsigned long *)0xb2600000)) & 0xff; 87} 88 89static void 90uart_cnterm(struct consdev * cp) 91{ 92 93} 94 95static void 96uart_cngrab(struct consdev *cp) 97{ 98 99} 100 101static void 102uart_cnungrab(struct consdev *cp) 103{ 104 105} 106 107CONSOLE_DRIVER(uart); 108