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      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