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wdenkcc1c8a12002-11-02 22:58:18 +00001/*
2 * (C) Copyright 2001
3 * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <command.h>
wdenkcc1c8a12002-11-02 22:58:18 +000026#include "part_iso.h"
27
Jon Loeligercde5c642007-07-09 17:22:37 -050028#if (defined(CONFIG_CMD_IDE) || \
29 defined(CONFIG_CMD_SCSI) || \
Dave Liuc7057b52008-03-26 22:49:44 +080030 defined(CONFIG_CMD_SATA) || \
Jon Loeligercde5c642007-07-09 17:22:37 -050031 defined(CONFIG_CMD_USB) || \
wdenk1968e612005-02-24 23:23:29 +000032 defined(CONFIG_MMC) || \
33 defined(CONFIG_SYSTEMACE) ) && defined(CONFIG_ISO_PARTITION)
wdenkcc1c8a12002-11-02 22:58:18 +000034
wdenk1968e612005-02-24 23:23:29 +000035/* #define ISO_PART_DEBUG */
wdenkcc1c8a12002-11-02 22:58:18 +000036
37#ifdef ISO_PART_DEBUG
38#define PRINTF(fmt,args...) printf (fmt ,##args)
39#else
40#define PRINTF(fmt,args...)
41#endif
42
43/* enable this if CDs are written with the PowerPC Platform ID */
44#undef CHECK_FOR_POWERPC_PLATTFORM
45#define CD_SECTSIZE 2048
46
47static unsigned char tmpbuf[CD_SECTSIZE];
48
49/* Convert char[4] in little endian format to the host format integer
50 */
51static inline unsigned long le32_to_int(unsigned char *le32)
52{
53 return ((le32[3] << 24) +
54 (le32[2] << 16) +
55 (le32[1] << 8) +
56 le32[0]
57 );
58}
59/* Convert char[2] in little endian format to the host format integer
60 */
61static inline unsigned short le16_to_int(unsigned char *le16)
62{
63 return ((le16[1] << 8) +
64 le16[0]
65 );
66}
67
68
69/* only boot records will be listed as valid partitions */
70int get_partition_info_iso_verb(block_dev_desc_t * dev_desc, int part_num, disk_partition_t * info, int verb)
71{
72 int i,offset,entry_num;
73 unsigned short *chksumbuf;
74 unsigned short chksum;
75 unsigned long newblkaddr,blkaddr,lastsect,bootaddr;
76 iso_boot_rec_t *pbr = (iso_boot_rec_t *)tmpbuf; /* boot record */
77 iso_pri_rec_t *ppr = (iso_pri_rec_t *)tmpbuf; /* primary desc */
78 iso_val_entry_t *pve = (iso_val_entry_t *)tmpbuf;
79 iso_init_def_entry_t *pide;
80
81 /* the first sector (sector 0x10) must be a primary volume desc */
82 blkaddr=PVD_OFFSET;
83 if (dev_desc->block_read (dev_desc->dev, PVD_OFFSET, 1, (ulong *) tmpbuf) != 1)
84 return (-1);
85 if(ppr->desctype!=0x01) {
86 if(verb)
87 printf ("** First descriptor is NOT a primary desc on %d:%d **\n",
88 dev_desc->dev, part_num);
89 return (-1);
90 }
Wolfgang Denk77ddac92005-10-13 16:45:02 +020091 if(strncmp((char *)ppr->stand_ident,"CD001",5)!=0) {
wdenkcc1c8a12002-11-02 22:58:18 +000092 if(verb)
93 printf ("** Wrong ISO Ident: %s on %d:%d **\n",
94 ppr->stand_ident,dev_desc->dev, part_num);
95 return (-1);
96 }
97 lastsect= ((ppr->firstsek_LEpathtab1_LE & 0x000000ff)<<24) +
98 ((ppr->firstsek_LEpathtab1_LE & 0x0000ff00)<< 8) +
99 ((ppr->firstsek_LEpathtab1_LE & 0x00ff0000)>> 8) +
100 ((ppr->firstsek_LEpathtab1_LE & 0xff000000)>>24) ;
101 info->blksz=ppr->secsize_BE; /* assuming same block size for all entries */
102 PRINTF(" Lastsect:%08lx\n",lastsect);
103 for(i=blkaddr;i<lastsect;i++) {
wdenkc7de8292002-11-19 11:04:11 +0000104 PRINTF("Reading block %d\n", i);
wdenkcc1c8a12002-11-02 22:58:18 +0000105 if (dev_desc->block_read (dev_desc->dev, i, 1, (ulong *) tmpbuf) != 1)
106 return (-1);
107 if(ppr->desctype==0x00)
108 break; /* boot entry found */
109 if(ppr->desctype==0xff) {
110 if(verb)
111 printf ("** No valid boot catalog found on %d:%d **\n",
112 dev_desc->dev, part_num);
113 return (-1);
114 }
115 }
116 /* boot entry found */
117 if(strncmp(pbr->ident_str,"EL TORITO SPECIFICATION",23)!=0) {
118 if(verb)
119 printf ("** Wrong El Torito ident: %s on %d:%d **\n",
120 pbr->ident_str,dev_desc->dev, part_num);
121 return (-1);
122 }
123 bootaddr=le32_to_int(pbr->pointer);
124 PRINTF(" Boot Entry at: %08lX\n",bootaddr);
125 if (dev_desc->block_read (dev_desc->dev, bootaddr, 1, (ulong *) tmpbuf) != 1) {
126 if(verb)
127 printf ("** Can't read Boot Entry at %lX on %d:%d **\n",
128 bootaddr,dev_desc->dev, part_num);
129 return (-1);
130 }
131 chksum=0;
132 chksumbuf = (unsigned short *)tmpbuf;
133 for(i=0;i<0x10;i++)
134 chksum+=((chksumbuf[i] &0xff)<<8)+((chksumbuf[i] &0xff00)>>8);
135 if(chksum!=0) {
136 if(verb)
137 printf ("** Checksum Error in booting catalog validation entry on %d:%d **\n",
138 dev_desc->dev, part_num);
139 return (-1);
140 }
141 if((pve->key[0]!=0x55)||(pve->key[1]!=0xAA)) {
142 if(verb)
143 printf ("** Key 0x55 0xAA error on %d:%d **\n",
144 dev_desc->dev, part_num);
145 return(-1);
146 }
147#ifdef CHECK_FOR_POWERPC_PLATTFORM
148 if(pve->platform!=0x01) {
149 if(verb)
150 printf ("** No PowerPC platform CD on %d:%d **\n",
151 dev_desc->dev, part_num);
152 return(-1);
153 }
154#endif
155 /* the validation entry seems to be ok, now search the "partition" */
156 entry_num=0;
157 offset=0x20;
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200158 sprintf ((char *)info->type, "U-Boot");
wdenkcc1c8a12002-11-02 22:58:18 +0000159 switch(dev_desc->if_type) {
160 case IF_TYPE_IDE:
Dave Liuc7057b52008-03-26 22:49:44 +0800161 case IF_TYPE_SATA:
wdenkcc1c8a12002-11-02 22:58:18 +0000162 case IF_TYPE_ATAPI:
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200163 sprintf ((char *)info->name, "hd%c%d\n", 'a' + dev_desc->dev, part_num);
wdenkcc1c8a12002-11-02 22:58:18 +0000164 break;
165 case IF_TYPE_SCSI:
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200166 sprintf ((char *)info->name, "sd%c%d\n", 'a' + dev_desc->dev, part_num);
wdenkcc1c8a12002-11-02 22:58:18 +0000167 break;
168 case IF_TYPE_USB:
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200169 sprintf ((char *)info->name, "usbd%c%d\n", 'a' + dev_desc->dev, part_num);
wdenkcc1c8a12002-11-02 22:58:18 +0000170 break;
171 case IF_TYPE_DOC:
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200172 sprintf ((char *)info->name, "docd%c%d\n", 'a' + dev_desc->dev, part_num);
wdenkcc1c8a12002-11-02 22:58:18 +0000173 break;
174 default:
Wolfgang Denk77ddac92005-10-13 16:45:02 +0200175 sprintf ((char *)info->name, "xx%c%d\n", 'a' + dev_desc->dev, part_num);
wdenkcc1c8a12002-11-02 22:58:18 +0000176 break;
177 }
178 /* the bootcatalog (including validation Entry) is limited to 2048Bytes
179 * (63 boot entries + validation entry) */
180 while(offset<2048) {
181 pide=(iso_init_def_entry_t *)&tmpbuf[offset];
182 if ((pide->boot_ind==0x88) ||
183 (pide->boot_ind==0x00)) { /* Header Id for default Sections Entries */
184 if(entry_num==part_num) { /* part found */
185 goto found;
186 }
187 entry_num++; /* count partitions Entries (boot and non bootables */
188 offset+=0x20;
189 continue;
190 }
191 if ((pide->boot_ind==0x90) || /* Section Header Entry */
192 (pide->boot_ind==0x91) || /* Section Header Entry (last) */
193 (pide->boot_ind==0x44)) { /* Extension Indicator */
194 offset+=0x20; /* skip unused entries */
195 }
196 else {
197 if(verb)
198 printf ("** Partition %d not found on device %d **\n",
199 part_num,dev_desc->dev);
200 return(-1);
201 }
202 }
203 /* if we reach this point entire sector has been
204 * searched w/o succsess */
205 if(verb)
206 printf ("** Partition %d not found on device %d **\n",
207 part_num,dev_desc->dev);
208 return(-1);
209found:
210 if(pide->boot_ind!=0x88) {
211 if(verb)
212 printf ("** Partition %d is not bootable on device %d **\n",
213 part_num,dev_desc->dev);
214 return (-1);
215 }
216 switch(pide->boot_media) {
217 case 0x00: /* no emulation */
218 info->size=le16_to_int(pide->sec_cnt)>>2;
219 break;
220 case 0x01: info->size=2400>>2; break; /* 1.2MByte Floppy */
221 case 0x02: info->size=2880>>2; break; /* 1.44MByte Floppy */
222 case 0x03: info->size=5760>>2; break; /* 2.88MByte Floppy */
223 case 0x04: info->size=2880>>2; break; /* dummy (HD Emulation) */
224 default: info->size=0; break;
225 }
226 newblkaddr=le32_to_int(pide->rel_block_addr);
227 info->start=newblkaddr;
228 PRINTF(" part %d found @ %lx size %lx\n",part_num,newblkaddr,info->size);
229 return 0;
230}
231
232int get_partition_info_iso(block_dev_desc_t * dev_desc, int part_num, disk_partition_t * info)
233{
234 return(get_partition_info_iso_verb(dev_desc, part_num, info, 1));
235}
236
237
wdenkcc1c8a12002-11-02 22:58:18 +0000238void print_part_iso(block_dev_desc_t * dev_desc)
239{
240 disk_partition_t info;
241 int i;
242 if(get_partition_info_iso_verb(dev_desc,0,&info,0)==-1) {
243 printf("** No boot partition found on device %d **\n",dev_desc->dev);
244 return;
245 }
246 printf("Part Start Sect x Size Type\n");
247 i=0;
248 do {
249 printf (" %2d %8ld %8ld %6ld %.32s\n",
250 i, info.start, info.size, info.blksz, info.type);
251 i++;
252 } while (get_partition_info_iso_verb(dev_desc,i,&info,0)!=-1);
253}
254
255int test_part_iso (block_dev_desc_t *dev_desc)
256{
257 disk_partition_t info;
258
259 return(get_partition_info_iso_verb(dev_desc,0,&info,0));
260}
261
Jon Loeligercde5c642007-07-09 17:22:37 -0500262#endif