1 /* $NetBSD: ahdi.c,v 1.1 2002/02/24 20:51:07 leo Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Leo Weppelman, Waldi Ravens. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * 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 copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by 18 * Leo Weppelman and Waldi Ravens. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/types.h> 35 #include <stdlib.h> 36 #include <string.h> 37 #include <ctype.h> 38 #include <stdio.h> 39 #include <xhdi.h> 40 #include "libtos.h" 41 #include "diskio.h" 42 #include "ahdilbl.h" 43 44 u_int 45 ahdi_getparts(dd, ptable, rsec, esec) 46 disk_t *dd; 47 ptable_t *ptable; 48 u_int rsec, 49 esec; 50 { 51 struct ahdi_part *part, *end; 52 struct ahdi_root *root; 53 u_int rv; 54 55 root = disk_read(dd, rsec, 1); 56 if (!root) { 57 rv = rsec + (rsec == 0); 58 goto done; 59 } 60 61 if (rsec == AHDI_BBLOCK) 62 end = &root->ar_parts[AHDI_MAXRPD]; 63 else end = &root->ar_parts[AHDI_MAXARPD]; 64 for (part = root->ar_parts; part < end; ++part) { 65 u_int id = *((u_int32_t *)&part->ap_flg); 66 if (!(id & 0x01000000)) 67 continue; 68 if ((id &= 0x00ffffff) == AHDI_PID_XGM) { 69 u_int offs = part->ap_st + esec; 70 rv = ahdi_getparts(dd, ptable, offs, 71 esec == AHDI_BBLOCK ? offs : esec); 72 if (rv) 73 goto done; 74 } else { 75 part_t *p; 76 u_int i = ++ptable->nparts; 77 ptable->parts = xrealloc(ptable->parts, 78 i * sizeof *ptable->parts); 79 p = &ptable->parts[--i]; 80 *((u_int32_t *)&p->id) = id << 8; 81 p->start = part->ap_st + rsec; 82 p->end = p->start + part->ap_size - 1; 83 p->rsec = rsec; 84 p->rent = part - root->ar_parts; 85 p->mod = 0; 86 } 87 } 88 rv = 0; 89 done: 90 free(root); 91 return(rv); 92 } 93