1/*- 2 * Copyright (C) 2014 Nathan Whitehorn 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 21 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 22 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 23 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> 27__FBSDID("$FreeBSD: stable/11/stand/powerpc/kboot/hostcons.c 276410 2014-12-30 14:50:03Z nwhitehorn $"); 28 29#include <sys/types.h> 30#include "bootstrap.h" 31#include "host_syscall.h" 32 33static void hostcons_probe(struct console *cp); 34static int hostcons_init(int arg); 35static void hostcons_putchar(int c); 36static int hostcons_getchar(); 37static int hostcons_poll(); 38 39struct console hostconsole = { 40 "host", 41 "Host Console", 42 0, 43 hostcons_probe, 44 hostcons_init, 45 hostcons_putchar, 46 hostcons_getchar, 47 hostcons_poll, 48}; 49 50static void 51hostcons_probe(struct console *cp) 52{ 53 54 cp->c_flags |= C_PRESENTIN|C_PRESENTOUT; 55} 56 57static int 58hostcons_init(int arg) 59{ 60 61 /* XXX: set nonblocking */ 62 /* tcsetattr(~(ICANON | ECHO)) */ 63 64 return (0); 65} 66 67static void 68hostcons_putchar(int c) 69{ 70 uint8_t ch = c; 71 72 host_write(1, &ch, 1); 73} 74 75static int 76hostcons_getchar() 77{ 78 uint8_t ch; 79 int rv; 80 81 rv = host_read(0, &ch, 1); 82 if (rv == 1) 83 return (ch); 84 return (-1); 85} 86 87static int 88hostcons_poll() 89{ 90 struct host_timeval tv = {0,0}; 91 long fds = 1 << 0; 92 int ret; 93 94 ret = host_select(32, &fds, NULL, NULL, &tv); 95 return (ret > 0); 96} 97 98