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fe8c2806 WD |
1 | /* |
2 | * (C) Copyright 2000 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
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 | /* | |
25 | * Support for harddisk partitions. | |
26 | * | |
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 | |
30 | */ | |
31 | ||
32 | #include <common.h> | |
33 | #include <command.h> | |
34 | #include <ide.h> | |
fe8c2806 WD |
35 | #include "part_mac.h" |
36 | ||
2c1af9dc | 37 | #ifdef HAVE_BLOCK_DEVICE |
fe8c2806 WD |
38 | |
39 | /* stdlib.h causes some compatibility problems; should fixe these! -- wd */ | |
40 | #ifndef __ldiv_t_defined | |
41 | typedef struct { | |
42 | long int quot; /* Quotient */ | |
43 | long int rem; /* Remainder */ | |
44 | } ldiv_t; | |
45 | extern ldiv_t ldiv (long int __numer, long int __denom); | |
46 | # define __ldiv_t_defined 1 | |
47 | #endif | |
48 | ||
49 | ||
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); | |
52 | ||
53 | /* | |
54 | * Test for a valid MAC partition | |
55 | */ | |
56 | int test_part_mac (block_dev_desc_t *dev_desc) | |
57 | { | |
64a08a9f BT |
58 | ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1); |
59 | ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1); | |
fe8c2806 WD |
60 | ulong i, n; |
61 | ||
64a08a9f | 62 | if (part_mac_read_ddb (dev_desc, ddesc)) { |
fe8c2806 WD |
63 | /* error reading Driver Desriptor Block, or no valid Signature */ |
64 | return (-1); | |
65 | } | |
66 | ||
67 | n = 1; /* assuming at least one partition */ | |
68 | for (i=1; i<=n; ++i) { | |
64a08a9f BT |
69 | if ((dev_desc->block_read(dev_desc->dev, i, 1, (ulong *)mpart) != 1) || |
70 | (mpart->signature != MAC_PARTITION_MAGIC) ) { | |
fe8c2806 WD |
71 | return (-1); |
72 | } | |
73 | /* update partition count */ | |
64a08a9f | 74 | n = mpart->map_count; |
fe8c2806 WD |
75 | } |
76 | return (0); | |
77 | } | |
78 | ||
79 | ||
80 | void print_part_mac (block_dev_desc_t *dev_desc) | |
81 | { | |
82 | ulong i, n; | |
64a08a9f BT |
83 | ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1); |
84 | ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1); | |
fe8c2806 WD |
85 | ldiv_t mb, gb; |
86 | ||
64a08a9f | 87 | if (part_mac_read_ddb (dev_desc, ddesc)) { |
fe8c2806 WD |
88 | /* error reading Driver Desriptor Block, or no valid Signature */ |
89 | return; | |
90 | } | |
91 | ||
64a08a9f | 92 | n = ddesc->blk_count; |
fe8c2806 | 93 | |
64a08a9f | 94 | mb = ldiv(n, ((1024 * 1024) / ddesc->blk_size)); /* MB */ |
fe8c2806 | 95 | /* round to 1 digit */ |
64a08a9f | 96 | mb.rem *= 10 * ddesc->blk_size; |
fe8c2806 WD |
97 | mb.rem += 512 * 1024; |
98 | mb.rem /= 1024 * 1024; | |
99 | ||
100 | gb = ldiv(10 * mb.quot + mb.rem, 10240); | |
101 | gb.rem += 512; | |
102 | gb.rem /= 1024; | |
103 | ||
104 | ||
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" | |
108 | " #: type name" | |
109 | " length base (size)\n", | |
64a08a9f BT |
110 | ddesc->blk_size, |
111 | ddesc->blk_count, | |
fe8c2806 | 112 | mb.quot, mb.rem, gb.quot, gb.rem, |
64a08a9f | 113 | ddesc->dev_type, ddesc->dev_id |
fe8c2806 WD |
114 | ); |
115 | ||
116 | n = 1; /* assuming at least one partition */ | |
117 | for (i=1; i<=n; ++i) { | |
118 | ulong bytes; | |
119 | char c; | |
120 | ||
121 | printf ("%4ld: ", i); | |
64a08a9f | 122 | if (dev_desc->block_read (dev_desc->dev, i, 1, (ulong *)mpart) != 1) { |
fe8c2806 WD |
123 | printf ("** Can't read Partition Map on %d:%ld **\n", |
124 | dev_desc->dev, i); | |
125 | return; | |
126 | } | |
127 | ||
64a08a9f | 128 | if (mpart->signature != MAC_PARTITION_MAGIC) { |
fe8c2806 WD |
129 | printf ("** Bad Signature on %d:%ld - " |
130 | "expected 0x%04x, got 0x%04x\n", | |
64a08a9f | 131 | dev_desc->dev, i, MAC_PARTITION_MAGIC, mpart->signature); |
fe8c2806 WD |
132 | return; |
133 | } | |
134 | ||
135 | /* update partition count */ | |
64a08a9f | 136 | n = mpart->map_count; |
fe8c2806 WD |
137 | |
138 | c = 'k'; | |
64a08a9f BT |
139 | bytes = mpart->block_count; |
140 | bytes /= (1024 / ddesc->blk_size); /* kB; assumes blk_size == 512 */ | |
fe8c2806 WD |
141 | if (bytes >= 1024) { |
142 | bytes >>= 10; | |
143 | c = 'M'; | |
144 | } | |
145 | if (bytes >= 1024) { | |
146 | bytes >>= 10; | |
147 | c = 'G'; | |
148 | } | |
149 | ||
150 | printf ("%20.32s %-18.32s %10u @ %-10u (%3ld%c)\n", | |
64a08a9f BT |
151 | mpart->type, |
152 | mpart->name, | |
153 | mpart->block_count, | |
154 | mpart->start_block, | |
fe8c2806 WD |
155 | bytes, c |
156 | ); | |
157 | } | |
158 | ||
159 | return; | |
160 | } | |
161 | ||
162 | ||
163 | /* | |
164 | * Read Device Descriptor Block | |
165 | */ | |
166 | static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p) | |
167 | { | |
168 | if (dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *)ddb_p) != 1) { | |
169 | printf ("** Can't read Driver Desriptor Block **\n"); | |
170 | return (-1); | |
171 | } | |
172 | ||
173 | if (ddb_p->signature != MAC_DRIVER_MAGIC) { | |
174 | #if 0 | |
175 | printf ("** Bad Signature: expected 0x%04x, got 0x%04x\n", | |
176 | MAC_DRIVER_MAGIC, ddb_p->signature); | |
177 | #endif | |
178 | return (-1); | |
179 | } | |
180 | return (0); | |
181 | } | |
182 | ||
183 | /* | |
184 | * Read Partition Descriptor Block | |
185 | */ | |
186 | static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p) | |
187 | { | |
188 | int n = 1; | |
189 | ||
190 | for (;;) { | |
191 | /* | |
8bde7f77 WD |
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. | |
fe8c2806 WD |
195 | */ |
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", | |
198 | dev_desc->dev, n); | |
199 | return (-1); | |
200 | } | |
201 | ||
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); | |
206 | return (-1); | |
207 | } | |
208 | ||
209 | if (n == part) | |
210 | return (0); | |
211 | ||
212 | if ((part < 1) || (part > pdb_p->map_count)) { | |
213 | printf ("** Invalid partition %d:%d [%d:1...%d:%d only]\n", | |
214 | dev_desc->dev, part, | |
215 | dev_desc->dev, | |
216 | dev_desc->dev, pdb_p->map_count); | |
217 | return (-1); | |
218 | } | |
219 | ||
220 | /* update partition count */ | |
221 | n = part; | |
222 | } | |
223 | ||
224 | /* NOTREACHED */ | |
225 | } | |
226 | ||
227 | int get_partition_info_mac (block_dev_desc_t *dev_desc, int part, disk_partition_t *info) | |
228 | { | |
64a08a9f BT |
229 | ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1); |
230 | ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1); | |
fe8c2806 | 231 | |
64a08a9f | 232 | if (part_mac_read_ddb (dev_desc, ddesc)) { |
fe8c2806 WD |
233 | return (-1); |
234 | } | |
235 | ||
64a08a9f | 236 | info->blksz = ddesc->blk_size; |
fe8c2806 | 237 | |
64a08a9f | 238 | if (part_mac_read_pdb (dev_desc, part, mpart)) { |
fe8c2806 WD |
239 | return (-1); |
240 | } | |
241 | ||
64a08a9f BT |
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)); | |
fe8c2806 WD |
246 | |
247 | return (0); | |
248 | } | |
249 | ||
cde5c64d | 250 | #endif |