/* $NetBSD: prom.c,v 1.3 1997/09/06 14:03:58 drochner Exp $ */ /* * Mach Operating System * Copyright (c) 1992 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: src/sys/boot/arc/lib/arcconsole.c,v 1.3 2004/01/04 23:28:01 obrien Exp $"); #include <sys/types.h> #include "bootstrap.h" #include "arctypes.h" #include "arcfuncs.h" int console; static void arc_probe(struct console *cp); static int arc_init(int); static void arc_putchar(int); static int arc_getchar(void); static int arc_poll(void); struct console arcconsole = { "arc", "ARC firmware console", 0, arc_probe, arc_init, arc_putchar, arc_getchar, arc_poll, }; static void arc_probe(struct console *cp) { cp->c_flags |= C_PRESENTIN|C_PRESENTOUT; } static int arc_init(int arg) { return 0; } static void arc_putchar(int c) { char cbuf = c; u_int32_t count; Write(StandardOut, &cbuf, 1, &count); } static int saved_char = -1; int arc_getchar() { char cbuf; u_int32_t count; arc_putchar('_'); arc_putchar('\b'); Read(StandardIn, &cbuf, 1, &count); arc_putchar(' '); arc_putchar('\b'); if (count == 1) return cbuf; else return -1; } int arc_poll() { return GetReadStatus(StandardIn) == ESUCCESS; } int arc_open(dev, len) char *dev; int len; { return 0; }