1 /* $NetBSD: bootinfo.c,v 1.2 2005/12/11 12:17:06 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <machine/types.h> 40 #include <lib/libsa/stand.h> 41 #include <lib/libkern/libkern.h> 42 43 #include "boot.h" 44 #include "bootinfo.h" 45 46 static char *bootinfo = NULL; 47 static char *bi_next; 48 static int bi_size; 49 50 char* bi_init(void) 51 { 52 struct btinfo_common *bi; 53 struct btinfo_magic bi_magic; 54 55 if ( (bootinfo = (char*)alloc(BOOTINFO_SIZE)) != NULL) { 56 bi = (struct btinfo_common *)bootinfo; 57 bi->next = bi->type = 0; 58 bi_next = bootinfo; 59 bi_size = 0; 60 61 bi_magic.magic = BOOTINFO_MAGIC; 62 bi_add(&bi_magic, BTINFO_MAGIC, sizeof(bi_magic)); 63 } 64 65 return (bootinfo); 66 } 67 68 void bi_add(new, type, size) 69 void *new; 70 int type, size; 71 { 72 struct btinfo_common *bi; 73 74 if (bi_size + size > BOOTINFO_SIZE) 75 return; /* XXX error? */ 76 77 if (bootinfo != NULL) { 78 DPRINTF(("Adding %d of size %d @0x%x\n", 79 type, size, (char*)bi_next)); 80 81 bi = new; 82 bi->next = size; 83 bi->type = type; 84 memcpy(bi_next, new, size); 85 bi_next += size; 86 87 bi = (struct btinfo_common *)bi_next; 88 bi->next = bi->type = 0; 89 } 90 } 91