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git.ipfire.org Git - people/ms/u-boot.git/blob - disk/part_iso.c
3 * Denis Peter, MPL AG Switzerland, d.peter@mpl.ch.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
28 #if defined(CONFIG_CMD_IDE) || \
29 defined(CONFIG_CMD_SCSI) || \
30 defined(CONFIG_CMD_SATA) || \
31 defined(CONFIG_CMD_USB) || \
32 defined(CONFIG_MMC) || \
33 defined(CONFIG_SYSTEMACE)
35 /* #define ISO_PART_DEBUG */
38 #define PRINTF(fmt,args...) printf (fmt ,##args)
40 #define PRINTF(fmt,args...)
43 /* enable this if CDs are written with the PowerPC Platform ID */
44 #undef CHECK_FOR_POWERPC_PLATTFORM
45 #define CD_SECTSIZE 2048
47 static unsigned char tmpbuf
[CD_SECTSIZE
];
49 /* Convert char[4] in little endian format to the host format integer
51 static inline unsigned long le32_to_int(unsigned char *le32
)
53 return ((le32
[3] << 24) +
59 /* Convert char[2] in little endian format to the host format integer
61 static inline unsigned short le16_to_int(unsigned char *le16
)
63 return ((le16
[1] << 8) +
69 /* only boot records will be listed as valid partitions */
70 int get_partition_info_iso_verb(block_dev_desc_t
* dev_desc
, int part_num
, disk_partition_t
* info
, int verb
)
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
;
81 /* the first sector (sector 0x10) must be a primary volume desc */
83 if (dev_desc
->block_read (dev_desc
->dev
, PVD_OFFSET
, 1, (ulong
*) tmpbuf
) != 1)
85 if(ppr
->desctype
!=0x01) {
87 printf ("** First descriptor is NOT a primary desc on %d:%d **\n",
88 dev_desc
->dev
, part_num
);
91 if(strncmp((char *)ppr
->stand_ident
,"CD001",5)!=0) {
93 printf ("** Wrong ISO Ident: %s on %d:%d **\n",
94 ppr
->stand_ident
,dev_desc
->dev
, part_num
);
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
++) {
104 PRINTF("Reading block %d\n", i
);
105 if (dev_desc
->block_read (dev_desc
->dev
, i
, 1, (ulong
*) tmpbuf
) != 1)
107 if(ppr
->desctype
==0x00)
108 break; /* boot entry found */
109 if(ppr
->desctype
==0xff) {
111 printf ("** No valid boot catalog found on %d:%d **\n",
112 dev_desc
->dev
, part_num
);
116 /* boot entry found */
117 if(strncmp(pbr
->ident_str
,"EL TORITO SPECIFICATION",23)!=0) {
119 printf ("** Wrong El Torito ident: %s on %d:%d **\n",
120 pbr
->ident_str
,dev_desc
->dev
, part_num
);
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) {
127 printf ("** Can't read Boot Entry at %lX on %d:%d **\n",
128 bootaddr
,dev_desc
->dev
, part_num
);
132 chksumbuf
= (unsigned short *)tmpbuf
;
134 chksum
+=((chksumbuf
[i
] &0xff)<<8)+((chksumbuf
[i
] &0xff00)>>8);
137 printf ("** Checksum Error in booting catalog validation entry on %d:%d **\n",
138 dev_desc
->dev
, part_num
);
141 if((pve
->key
[0]!=0x55)||(pve
->key
[1]!=0xAA)) {
143 printf ("** Key 0x55 0xAA error on %d:%d **\n",
144 dev_desc
->dev
, part_num
);
147 #ifdef CHECK_FOR_POWERPC_PLATTFORM
148 if(pve
->platform
!=0x01) {
150 printf ("** No PowerPC platform CD on %d:%d **\n",
151 dev_desc
->dev
, part_num
);
155 /* the validation entry seems to be ok, now search the "partition" */
158 sprintf ((char *)info
->type
, "U-Boot");
159 switch(dev_desc
->if_type
) {
163 sprintf ((char *)info
->name
, "hd%c%d",
164 'a' + dev_desc
->dev
, part_num
);
167 sprintf ((char *)info
->name
, "sd%c%d",
168 'a' + dev_desc
->dev
, part_num
);
171 sprintf ((char *)info
->name
, "usbd%c%d",
172 'a' + dev_desc
->dev
, part_num
);
175 sprintf ((char *)info
->name
, "docd%c%d",
176 'a' + dev_desc
->dev
, part_num
);
179 sprintf ((char *)info
->name
, "xx%c%d",
180 'a' + dev_desc
->dev
, part_num
);
183 /* the bootcatalog (including validation Entry) is limited to 2048Bytes
184 * (63 boot entries + validation entry) */
186 pide
=(iso_init_def_entry_t
*)&tmpbuf
[offset
];
187 if ((pide
->boot_ind
==0x88) ||
188 (pide
->boot_ind
==0x00)) { /* Header Id for default Sections Entries */
189 if(entry_num
==part_num
) { /* part found */
192 entry_num
++; /* count partitions Entries (boot and non bootables */
196 if ((pide
->boot_ind
==0x90) || /* Section Header Entry */
197 (pide
->boot_ind
==0x91) || /* Section Header Entry (last) */
198 (pide
->boot_ind
==0x44)) { /* Extension Indicator */
199 offset
+=0x20; /* skip unused entries */
203 printf ("** Partition %d not found on device %d **\n",
204 part_num
,dev_desc
->dev
);
208 /* if we reach this point entire sector has been
209 * searched w/o succsess */
211 printf ("** Partition %d not found on device %d **\n",
212 part_num
,dev_desc
->dev
);
215 if(pide
->boot_ind
!=0x88) {
217 printf ("** Partition %d is not bootable on device %d **\n",
218 part_num
,dev_desc
->dev
);
221 switch(pide
->boot_media
) {
222 case 0x00: /* no emulation */
223 info
->size
=le16_to_int(pide
->sec_cnt
)>>2;
225 case 0x01: info
->size
=2400>>2; break; /* 1.2MByte Floppy */
226 case 0x02: info
->size
=2880>>2; break; /* 1.44MByte Floppy */
227 case 0x03: info
->size
=5760>>2; break; /* 2.88MByte Floppy */
228 case 0x04: info
->size
=2880>>2; break; /* dummy (HD Emulation) */
229 default: info
->size
=0; break;
231 newblkaddr
=le32_to_int(pide
->rel_block_addr
);
232 info
->start
=newblkaddr
;
233 PRINTF(" part %d found @ %lx size %lx\n",part_num
,newblkaddr
,info
->size
);
237 int get_partition_info_iso(block_dev_desc_t
* dev_desc
, int part_num
, disk_partition_t
* info
)
239 return(get_partition_info_iso_verb(dev_desc
, part_num
, info
, 1));
243 void print_part_iso(block_dev_desc_t
* dev_desc
)
245 disk_partition_t info
;
247 if(get_partition_info_iso_verb(dev_desc
,0,&info
,0)==-1) {
248 printf("** No boot partition found on device %d **\n",dev_desc
->dev
);
251 printf("Part Start Sect x Size Type\n");
254 printf (" %2d %8ld %8ld %6ld %.32s\n",
255 i
, info
.start
, info
.size
, info
.blksz
, info
.type
);
257 } while (get_partition_info_iso_verb(dev_desc
,i
,&info
,0)!=-1);
260 int test_part_iso (block_dev_desc_t
*dev_desc
)
262 disk_partition_t info
;
264 return(get_partition_info_iso_verb(dev_desc
,0,&info
,0));