]>
git.ipfire.org Git - thirdparty/u-boot.git/blob - disk/part_mac.c
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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,
25 * Support for harddisk partitions.
27 * To be compatible with LinuxPPC and Apple we use the standard Apple
28 * SCSI disk partitioning scheme. For more information see:
29 * http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
37 #ifdef HAVE_BLOCK_DEVICE
39 /* stdlib.h causes some compatibility problems; should fixe these! -- wd */
40 #ifndef __ldiv_t_defined
42 long int quot
; /* Quotient */
43 long int rem
; /* Remainder */
45 extern ldiv_t ldiv (long int __numer
, long int __denom
);
46 # define __ldiv_t_defined 1
50 static int part_mac_read_ddb (block_dev_desc_t
*dev_desc
, mac_driver_desc_t
*ddb_p
);
51 static int part_mac_read_pdb (block_dev_desc_t
*dev_desc
, int part
, mac_partition_t
*pdb_p
);
54 * Test for a valid MAC partition
56 int test_part_mac (block_dev_desc_t
*dev_desc
)
58 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t
, ddesc
, 1);
59 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t
, mpart
, 1);
62 if (part_mac_read_ddb (dev_desc
, ddesc
)) {
63 /* error reading Driver Desriptor Block, or no valid Signature */
67 n
= 1; /* assuming at least one partition */
68 for (i
=1; i
<=n
; ++i
) {
69 if ((dev_desc
->block_read(dev_desc
->dev
, i
, 1, (ulong
*)mpart
) != 1) ||
70 (mpart
->signature
!= MAC_PARTITION_MAGIC
) ) {
73 /* update partition count */
80 void print_part_mac (block_dev_desc_t
*dev_desc
)
83 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t
, ddesc
, 1);
84 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t
, mpart
, 1);
87 if (part_mac_read_ddb (dev_desc
, ddesc
)) {
88 /* error reading Driver Desriptor Block, or no valid Signature */
94 mb
= ldiv(n
, ((1024 * 1024) / ddesc
->blk_size
)); /* MB */
95 /* round to 1 digit */
96 mb
.rem
*= 10 * ddesc
->blk_size
;
98 mb
.rem
/= 1024 * 1024;
100 gb
= ldiv(10 * mb
.quot
+ mb
.rem
, 10240);
105 printf ("Block Size=%d, Number of Blocks=%d, "
106 "Total Capacity: %ld.%ld MB = %ld.%ld GB\n"
107 "DeviceType=0x%x, DeviceId=0x%x\n\n"
109 " length base (size)\n",
112 mb
.quot
, mb
.rem
, gb
.quot
, gb
.rem
,
113 ddesc
->dev_type
, ddesc
->dev_id
116 n
= 1; /* assuming at least one partition */
117 for (i
=1; i
<=n
; ++i
) {
121 printf ("%4ld: ", i
);
122 if (dev_desc
->block_read (dev_desc
->dev
, i
, 1, (ulong
*)mpart
) != 1) {
123 printf ("** Can't read Partition Map on %d:%ld **\n",
128 if (mpart
->signature
!= MAC_PARTITION_MAGIC
) {
129 printf ("** Bad Signature on %d:%ld - "
130 "expected 0x%04x, got 0x%04x\n",
131 dev_desc
->dev
, i
, MAC_PARTITION_MAGIC
, mpart
->signature
);
135 /* update partition count */
136 n
= mpart
->map_count
;
139 bytes
= mpart
->block_count
;
140 bytes
/= (1024 / ddesc
->blk_size
); /* kB; assumes blk_size == 512 */
150 printf ("%20.32s %-18.32s %10u @ %-10u (%3ld%c)\n",
164 * Read Device Descriptor Block
166 static int part_mac_read_ddb (block_dev_desc_t
*dev_desc
, mac_driver_desc_t
*ddb_p
)
168 if (dev_desc
->block_read(dev_desc
->dev
, 0, 1, (ulong
*)ddb_p
) != 1) {
169 printf ("** Can't read Driver Desriptor Block **\n");
173 if (ddb_p
->signature
!= MAC_DRIVER_MAGIC
) {
175 printf ("** Bad Signature: expected 0x%04x, got 0x%04x\n",
176 MAC_DRIVER_MAGIC
, ddb_p
->signature
);
184 * Read Partition Descriptor Block
186 static int part_mac_read_pdb (block_dev_desc_t
*dev_desc
, int part
, mac_partition_t
*pdb_p
)
192 * We must always read the descritpor block for
193 * partition 1 first since this is the only way to
194 * know how many partitions we have.
196 if (dev_desc
->block_read (dev_desc
->dev
, n
, 1, (ulong
*)pdb_p
) != 1) {
197 printf ("** Can't read Partition Map on %d:%d **\n",
202 if (pdb_p
->signature
!= MAC_PARTITION_MAGIC
) {
203 printf ("** Bad Signature on %d:%d: "
204 "expected 0x%04x, got 0x%04x\n",
205 dev_desc
->dev
, n
, MAC_PARTITION_MAGIC
, pdb_p
->signature
);
212 if ((part
< 1) || (part
> pdb_p
->map_count
)) {
213 printf ("** Invalid partition %d:%d [%d:1...%d:%d only]\n",
216 dev_desc
->dev
, pdb_p
->map_count
);
220 /* update partition count */
227 int get_partition_info_mac (block_dev_desc_t
*dev_desc
, int part
, disk_partition_t
*info
)
229 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t
, ddesc
, 1);
230 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t
, mpart
, 1);
232 if (part_mac_read_ddb (dev_desc
, ddesc
)) {
236 info
->blksz
= ddesc
->blk_size
;
238 if (part_mac_read_pdb (dev_desc
, part
, mpart
)) {
242 info
->start
= mpart
->start_block
;
243 info
->size
= mpart
->block_count
;
244 memcpy (info
->type
, mpart
->type
, sizeof(info
->type
));
245 memcpy (info
->name
, mpart
->name
, sizeof(info
->name
));