1 /* $NetBSD: bootinfo.c,v 1.8 2008/04/28 20:23:31 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jonathan Stone, Michael Hitch and Simon Burge. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <machine/types.h> 33 #include <lib/libsa/stand.h> 34 #include <lib/libkern/libkern.h> 35 36 #include "bootinfo.h" 37 38 static char *bootinfo = NULL; 39 static char *bi_next; 40 static int bi_size; 41 42 void bi_init(addr) 43 paddr_t addr; 44 { 45 struct btinfo_common *bi; 46 struct btinfo_magic bi_magic; 47 48 bootinfo = (char *)addr; 49 bi = (struct btinfo_common *)bootinfo; 50 bi->next = bi->type = 0; 51 bi_next = bootinfo; 52 bi_size = 0; 53 54 bi_magic.magic = BOOTINFO_MAGIC; 55 bi_add(&bi_magic, BTINFO_MAGIC, sizeof(bi_magic)); 56 } 57 58 void bi_add(new, type, size) 59 void *new; 60 int type, size; 61 { 62 struct btinfo_common *bi; 63 64 if (bi_size + size > BOOTINFO_SIZE) 65 return; /* XXX error? */ 66 67 bi = new; 68 bi->next = size; 69 bi->type = type; 70 memcpy(bi_next, new, size); 71 bi_next += size; 72 73 bi = (struct btinfo_common *)bi_next; 74 bi->next = bi->type = 0; 75 76 bi_size += size; 77 } 78