]>
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 #if defined(CONFIG_CMD_IDE) || \
38 defined(CONFIG_CMD_SCSI) || \
39 defined(CONFIG_CMD_SATA) || \
40 defined(CONFIG_CMD_USB) || \
41 defined(CONFIG_MMC) || \
42 defined(CONFIG_SYSTEMACE)
44 /* stdlib.h causes some compatibility problems; should fixe these! -- wd */
45 #ifndef __ldiv_t_defined
47 long int quot
; /* Quotient */
48 long int rem
; /* Remainder */
50 extern ldiv_t ldiv (long int __numer
, long int __denom
);
51 # define __ldiv_t_defined 1
55 static int part_mac_read_ddb (block_dev_desc_t
*dev_desc
, mac_driver_desc_t
*ddb_p
);
56 static int part_mac_read_pdb (block_dev_desc_t
*dev_desc
, int part
, mac_partition_t
*pdb_p
);
59 * Test for a valid MAC partition
61 int test_part_mac (block_dev_desc_t
*dev_desc
)
63 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t
, ddesc
, 1);
64 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t
, mpart
, 1);
67 if (part_mac_read_ddb (dev_desc
, ddesc
)) {
68 /* error reading Driver Desriptor Block, or no valid Signature */
72 n
= 1; /* assuming at least one partition */
73 for (i
=1; i
<=n
; ++i
) {
74 if ((dev_desc
->block_read(dev_desc
->dev
, i
, 1, (ulong
*)mpart
) != 1) ||
75 (mpart
->signature
!= MAC_PARTITION_MAGIC
) ) {
78 /* update partition count */
85 void print_part_mac (block_dev_desc_t
*dev_desc
)
88 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t
, ddesc
, 1);
89 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t
, mpart
, 1);
92 if (part_mac_read_ddb (dev_desc
, ddesc
)) {
93 /* error reading Driver Desriptor Block, or no valid Signature */
99 mb
= ldiv(n
, ((1024 * 1024) / ddesc
->blk_size
)); /* MB */
100 /* round to 1 digit */
101 mb
.rem
*= 10 * ddesc
->blk_size
;
102 mb
.rem
+= 512 * 1024;
103 mb
.rem
/= 1024 * 1024;
105 gb
= ldiv(10 * mb
.quot
+ mb
.rem
, 10240);
110 printf ("Block Size=%d, Number of Blocks=%d, "
111 "Total Capacity: %ld.%ld MB = %ld.%ld GB\n"
112 "DeviceType=0x%x, DeviceId=0x%x\n\n"
114 " length base (size)\n",
117 mb
.quot
, mb
.rem
, gb
.quot
, gb
.rem
,
118 ddesc
->dev_type
, ddesc
->dev_id
121 n
= 1; /* assuming at least one partition */
122 for (i
=1; i
<=n
; ++i
) {
126 printf ("%4ld: ", i
);
127 if (dev_desc
->block_read (dev_desc
->dev
, i
, 1, (ulong
*)mpart
) != 1) {
128 printf ("** Can't read Partition Map on %d:%ld **\n",
133 if (mpart
->signature
!= MAC_PARTITION_MAGIC
) {
134 printf ("** Bad Signature on %d:%ld - "
135 "expected 0x%04x, got 0x%04x\n",
136 dev_desc
->dev
, i
, MAC_PARTITION_MAGIC
, mpart
->signature
);
140 /* update partition count */
141 n
= mpart
->map_count
;
144 bytes
= mpart
->block_count
;
145 bytes
/= (1024 / ddesc
->blk_size
); /* kB; assumes blk_size == 512 */
155 printf ("%20.32s %-18.32s %10u @ %-10u (%3ld%c)\n",
169 * Read Device Descriptor Block
171 static int part_mac_read_ddb (block_dev_desc_t
*dev_desc
, mac_driver_desc_t
*ddb_p
)
173 if (dev_desc
->block_read(dev_desc
->dev
, 0, 1, (ulong
*)ddb_p
) != 1) {
174 printf ("** Can't read Driver Desriptor Block **\n");
178 if (ddb_p
->signature
!= MAC_DRIVER_MAGIC
) {
180 printf ("** Bad Signature: expected 0x%04x, got 0x%04x\n",
181 MAC_DRIVER_MAGIC
, ddb_p
->signature
);
189 * Read Partition Descriptor Block
191 static int part_mac_read_pdb (block_dev_desc_t
*dev_desc
, int part
, mac_partition_t
*pdb_p
)
197 * We must always read the descritpor block for
198 * partition 1 first since this is the only way to
199 * know how many partitions we have.
201 if (dev_desc
->block_read (dev_desc
->dev
, n
, 1, (ulong
*)pdb_p
) != 1) {
202 printf ("** Can't read Partition Map on %d:%d **\n",
207 if (pdb_p
->signature
!= MAC_PARTITION_MAGIC
) {
208 printf ("** Bad Signature on %d:%d: "
209 "expected 0x%04x, got 0x%04x\n",
210 dev_desc
->dev
, n
, MAC_PARTITION_MAGIC
, pdb_p
->signature
);
217 if ((part
< 1) || (part
> pdb_p
->map_count
)) {
218 printf ("** Invalid partition %d:%d [%d:1...%d:%d only]\n",
221 dev_desc
->dev
, pdb_p
->map_count
);
225 /* update partition count */
232 int get_partition_info_mac (block_dev_desc_t
*dev_desc
, int part
, disk_partition_t
*info
)
234 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t
, ddesc
, 1);
235 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t
, mpart
, 1);
237 if (part_mac_read_ddb (dev_desc
, ddesc
)) {
241 info
->blksz
= ddesc
->blk_size
;
243 if (part_mac_read_pdb (dev_desc
, part
, mpart
)) {
247 info
->start
= mpart
->start_block
;
248 info
->size
= mpart
->block_count
;
249 memcpy (info
->type
, mpart
->type
, sizeof(info
->type
));
250 memcpy (info
->name
, mpart
->name
, sizeof(info
->name
));