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Commit | Line | Data |
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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
affae2bf WD |
2 | /* |
3 | * (C) Copyright 2001 | |
4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
affae2bf WD |
5 | */ |
6 | ||
d678a59d | 7 | #include <common.h> |
e6f6f9e6 | 8 | #include <blk.h> |
affae2bf | 9 | #include <command.h> |
7b51b576 | 10 | #include <env.h> |
96e5b03c | 11 | #include <errno.h> |
affae2bf | 12 | #include <ide.h> |
f7ae49fc | 13 | #include <log.h> |
10a37fd7 | 14 | #include <malloc.h> |
735dd97b | 15 | #include <part.h> |
251cee0d | 16 | #include <ubifs_uboot.h> |
51b2f4f0 | 17 | #include <dm/uclass.h> |
affae2bf WD |
18 | |
19 | #undef PART_DEBUG | |
20 | ||
21 | #ifdef PART_DEBUG | |
22 | #define PRINTF(fmt,args...) printf (fmt ,##args) | |
23 | #else | |
24 | #define PRINTF(fmt,args...) | |
25 | #endif | |
26 | ||
30789095 SP |
27 | /* Check all partition types */ |
28 | #define PART_TYPE_ALL -1 | |
29 | ||
ade2316d SG |
30 | /** |
31 | * part_driver_get_type() - Get a driver given its type | |
32 | * | |
33 | * @part_type: Partition type to find the driver for | |
34 | * Return: Driver for that type, or NULL if none | |
35 | */ | |
387f8be5 JW |
36 | static struct part_driver *part_driver_get_type(int part_type) |
37 | { | |
38 | struct part_driver *drv = | |
39 | ll_entry_start(struct part_driver, part_driver); | |
40 | const int n_ents = ll_entry_count(struct part_driver, part_driver); | |
41 | struct part_driver *entry; | |
42 | ||
43 | for (entry = drv; entry != drv + n_ents; entry++) { | |
44 | if (part_type == entry->part_type) | |
45 | return entry; | |
46 | } | |
47 | ||
48 | /* Not found */ | |
49 | return NULL; | |
50 | } | |
51 | ||
ade2316d SG |
52 | /** |
53 | * part_driver_lookup_type() - Look up the partition driver for a blk device | |
54 | * | |
55 | * If @desc->part_type is PART_TYPE_UNKNOWN, this checks each parition driver | |
56 | * against the blk device to see if there is a valid partition table acceptable | |
57 | * to that driver. | |
58 | * | |
59 | * If @desc->part_type is already set, it just returns the driver for that | |
60 | * type, without testing if the driver can find a valid partition on the | |
61 | * descriptor. | |
62 | * | |
63 | * On success it updates @desc->part_type if set to PART_TYPE_UNKNOWN on entry | |
64 | * | |
65 | * @dev_desc: Device descriptor | |
66 | * Return: Driver found, or NULL if none | |
67 | */ | |
5aab05d9 | 68 | static struct part_driver *part_driver_lookup_type(struct blk_desc *desc) |
96e5b03c SG |
69 | { |
70 | struct part_driver *drv = | |
71 | ll_entry_start(struct part_driver, part_driver); | |
72 | const int n_ents = ll_entry_count(struct part_driver, part_driver); | |
73 | struct part_driver *entry; | |
74 | ||
5aab05d9 | 75 | if (desc->part_type == PART_TYPE_UNKNOWN) { |
d4729269 KY |
76 | for (entry = drv; entry != drv + n_ents; entry++) { |
77 | int ret; | |
78 | ||
5aab05d9 | 79 | ret = entry->test(desc); |
d4729269 | 80 | if (!ret) { |
5aab05d9 | 81 | desc->part_type = entry->part_type; |
d4729269 KY |
82 | return entry; |
83 | } | |
84 | } | |
85 | } else { | |
5aab05d9 | 86 | return part_driver_get_type(desc->part_type); |
96e5b03c SG |
87 | } |
88 | ||
89 | /* Not found */ | |
90 | return NULL; | |
91 | } | |
92 | ||
125194e6 SG |
93 | int part_get_type_by_name(const char *name) |
94 | { | |
95 | struct part_driver *drv = | |
96 | ll_entry_start(struct part_driver, part_driver); | |
97 | const int n_ents = ll_entry_count(struct part_driver, part_driver); | |
98 | struct part_driver *entry; | |
99 | ||
100 | for (entry = drv; entry != drv + n_ents; entry++) { | |
101 | if (!strcasecmp(name, entry->name)) | |
102 | return entry->part_type; | |
103 | } | |
104 | ||
105 | /* Not found */ | |
106 | return PART_TYPE_UNKNOWN; | |
107 | } | |
108 | ||
ade2316d SG |
109 | /** |
110 | * get_dev_hwpart() - Get the descriptor for a device with hardware partitions | |
111 | * | |
112 | * @ifname: Interface name (e.g. "ide", "scsi") | |
113 | * @dev: Device number (0 for first device on that interface, 1 for | |
114 | * second, etc. | |
115 | * @hwpart: Hardware partition, or 0 if none (used for MMC) | |
116 | * Return: pointer to the block device, or NULL if not available, or an | |
117 | * error occurred. | |
118 | */ | |
4101f687 | 119 | static struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart) |
735dd97b | 120 | { |
5aab05d9 | 121 | struct blk_desc *desc; |
6dd9faf8 | 122 | int ret; |
735dd97b | 123 | |
a51eb8de SG |
124 | if (!blk_enabled()) |
125 | return NULL; | |
5aab05d9 SG |
126 | desc = blk_get_devnum_by_uclass_idname(ifname, dev); |
127 | if (!desc) { | |
6dd9faf8 SG |
128 | debug("%s: No device for iface '%s', dev %d\n", __func__, |
129 | ifname, dev); | |
7e71dc68 | 130 | return NULL; |
735dd97b | 131 | } |
5aab05d9 | 132 | ret = blk_dselect_hwpart(desc, hwpart); |
6dd9faf8 SG |
133 | if (ret) { |
134 | debug("%s: Failed to select h/w partition: err-%d\n", __func__, | |
135 | ret); | |
136 | return NULL; | |
137 | } | |
138 | ||
5aab05d9 | 139 | return desc; |
735dd97b | 140 | } |
336b6f90 | 141 | |
db1d9e78 | 142 | struct blk_desc *blk_get_dev(const char *ifname, int dev) |
336b6f90 | 143 | { |
a51eb8de SG |
144 | if (!blk_enabled()) |
145 | return NULL; | |
336b6f90 | 146 | |
a51eb8de | 147 | return get_dev_hwpart(ifname, dev, 0); |
735dd97b | 148 | } |
affae2bf WD |
149 | |
150 | /* ------------------------------------------------------------------------- */ | |
151 | /* | |
152 | * reports device info to the user | |
153 | */ | |
69a2a4d9 | 154 | |
42dfe7a1 | 155 | #ifdef CONFIG_LBA48 |
69a2a4d9 | 156 | typedef uint64_t lba512_t; |
c40b2956 | 157 | #else |
69a2a4d9 | 158 | typedef lbaint_t lba512_t; |
c40b2956 | 159 | #endif |
affae2bf | 160 | |
69a2a4d9 | 161 | /* |
a9d1c0e2 HS |
162 | * Overflowless variant of (block_count * mul_by / 2**right_shift) |
163 | * when 2**right_shift > mul_by | |
69a2a4d9 | 164 | */ |
a9d1c0e2 HS |
165 | static lba512_t lba512_muldiv(lba512_t block_count, lba512_t mul_by, |
166 | int right_shift) | |
69a2a4d9 ST |
167 | { |
168 | lba512_t bc_quot, bc_rem; | |
169 | ||
170 | /* x * m / d == x / d * m + (x % d) * m / d */ | |
a9d1c0e2 HS |
171 | bc_quot = block_count >> right_shift; |
172 | bc_rem = block_count - (bc_quot << right_shift); | |
173 | return bc_quot * mul_by + ((bc_rem * mul_by) >> right_shift); | |
69a2a4d9 ST |
174 | } |
175 | ||
5aab05d9 | 176 | void dev_print(struct blk_desc *desc) |
69a2a4d9 ST |
177 | { |
178 | lba512_t lba512; /* number of blocks if 512bytes block size */ | |
179 | ||
5aab05d9 | 180 | if (desc->type == DEV_TYPE_UNKNOWN) { |
af75a45d WD |
181 | puts ("not available\n"); |
182 | return; | |
183 | } | |
184 | ||
5aab05d9 | 185 | switch (desc->uclass_id) { |
e33a5c6b | 186 | case UCLASS_SCSI: |
5aab05d9 SG |
187 | printf("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n", desc->target, |
188 | desc->lun, desc->vendor, desc->product, desc->revision); | |
574b3195 | 189 | break; |
e33a5c6b SG |
190 | case UCLASS_IDE: |
191 | case UCLASS_AHCI: | |
5aab05d9 SG |
192 | printf("Model: %s Firm: %s Ser#: %s\n", desc->vendor, |
193 | desc->revision, desc->product); | |
574b3195 | 194 | break; |
e33a5c6b SG |
195 | case UCLASS_MMC: |
196 | case UCLASS_USB: | |
197 | case UCLASS_NVME: | |
198 | case UCLASS_PVBLOCK: | |
95201811 | 199 | case UCLASS_HOST: |
bb56da11 | 200 | case UCLASS_BLKMAP: |
900c303a | 201 | case UCLASS_RKMTD: |
47bebe34 | 202 | printf ("Vendor: %s Rev: %s Prod: %s\n", |
5aab05d9 SG |
203 | desc->vendor, |
204 | desc->revision, | |
205 | desc->product); | |
47bebe34 | 206 | break; |
e33a5c6b | 207 | case UCLASS_VIRTIO: |
5aab05d9 | 208 | printf("%s VirtIO Block Device\n", desc->vendor); |
4ad54ec4 | 209 | break; |
ef4b66bc | 210 | case UCLASS_EFI_MEDIA: |
5aab05d9 | 211 | printf("EFI media Block Device %d\n", desc->devnum); |
ef4b66bc | 212 | break; |
e33a5c6b | 213 | case UCLASS_INVALID: |
6e24a1eb RB |
214 | puts("device type unknown\n"); |
215 | return; | |
574b3195 | 216 | default: |
5aab05d9 | 217 | printf("Unhandled device type: %i\n", desc->uclass_id); |
574b3195 | 218 | return; |
affae2bf WD |
219 | } |
220 | puts (" Type: "); | |
5aab05d9 | 221 | if (desc->removable) |
affae2bf | 222 | puts ("Removable "); |
5aab05d9 | 223 | switch (desc->type & 0x1F) { |
726c0f1e DZ |
224 | case DEV_TYPE_HARDDISK: |
225 | puts ("Hard Disk"); | |
226 | break; | |
227 | case DEV_TYPE_CDROM: | |
228 | puts ("CD ROM"); | |
229 | break; | |
230 | case DEV_TYPE_OPDISK: | |
231 | puts ("Optical Device"); | |
232 | break; | |
233 | case DEV_TYPE_TAPE: | |
234 | puts ("Tape"); | |
235 | break; | |
236 | default: | |
5aab05d9 | 237 | printf("# %02X #", desc->type & 0x1F); |
726c0f1e | 238 | break; |
affae2bf WD |
239 | } |
240 | puts ("\n"); | |
5aab05d9 | 241 | if (desc->lba > 0L && desc->blksz > 0L) { |
affae2bf | 242 | ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem; |
c40b2956 | 243 | lbaint_t lba; |
6e592385 | 244 | |
5aab05d9 | 245 | lba = desc->lba; |
affae2bf | 246 | |
5aab05d9 | 247 | lba512 = lba * (desc->blksz / 512); |
affae2bf | 248 | /* round to 1 digit */ |
214b3f31 | 249 | /* 2048 = (1024 * 1024) / 512 MB */ |
17416eaf | 250 | mb = lba512_muldiv(lba512, 10, 11); |
69a2a4d9 | 251 | |
affae2bf WD |
252 | mb_quot = mb / 10; |
253 | mb_rem = mb - (10 * mb_quot); | |
254 | ||
255 | gb = mb / 1024; | |
256 | gb_quot = gb / 10; | |
257 | gb_rem = gb - (10 * gb_quot); | |
42dfe7a1 | 258 | #ifdef CONFIG_LBA48 |
5aab05d9 | 259 | if (desc->lba48) |
c40b2956 WD |
260 | printf (" Supports 48-bit addressing\n"); |
261 | #endif | |
4b142feb | 262 | #if defined(CONFIG_SYS_64BIT_LBA) |
139f7b1d | 263 | printf (" Capacity: %lu.%lu MB = %lu.%lu GB (%llu x %lu)\n", |
c40b2956 WD |
264 | mb_quot, mb_rem, |
265 | gb_quot, gb_rem, | |
266 | lba, | |
5aab05d9 | 267 | desc->blksz); |
c40b2956 | 268 | #else |
139f7b1d | 269 | printf (" Capacity: %lu.%lu MB = %lu.%lu GB (%lu x %lu)\n", |
affae2bf WD |
270 | mb_quot, mb_rem, |
271 | gb_quot, gb_rem, | |
c40b2956 | 272 | (ulong)lba, |
5aab05d9 | 273 | desc->blksz); |
c40b2956 | 274 | #endif |
affae2bf WD |
275 | } else { |
276 | puts (" Capacity: not available\n"); | |
277 | } | |
278 | } | |
affae2bf | 279 | |
5aab05d9 | 280 | void part_init(struct blk_desc *desc) |
affae2bf | 281 | { |
96e5b03c SG |
282 | struct part_driver *drv = |
283 | ll_entry_start(struct part_driver, part_driver); | |
284 | const int n_ents = ll_entry_count(struct part_driver, part_driver); | |
285 | struct part_driver *entry; | |
affae2bf | 286 | |
5aab05d9 | 287 | blkcache_invalidate(desc->uclass_id, desc->devnum); |
e40cf34a | 288 | |
5aab05d9 | 289 | desc->part_type = PART_TYPE_UNKNOWN; |
96e5b03c SG |
290 | for (entry = drv; entry != drv + n_ents; entry++) { |
291 | int ret; | |
292 | ||
5aab05d9 | 293 | ret = entry->test(desc); |
96e5b03c SG |
294 | debug("%s: try '%s': ret=%d\n", __func__, entry->name, ret); |
295 | if (!ret) { | |
5aab05d9 | 296 | desc->part_type = entry->part_type; |
96e5b03c SG |
297 | break; |
298 | } | |
299 | } | |
affae2bf WD |
300 | } |
301 | ||
5aab05d9 | 302 | static void print_part_header(const char *type, struct blk_desc *desc) |
96e5b03c | 303 | { |
f18fa31c | 304 | #if CONFIG_IS_ENABLED(MAC_PARTITION) || \ |
b0cf7339 | 305 | CONFIG_IS_ENABLED(DOS_PARTITION) || \ |
1acc0087 | 306 | CONFIG_IS_ENABLED(ISO_PARTITION) || \ |
863c5b6c | 307 | CONFIG_IS_ENABLED(AMIGA_PARTITION) || \ |
bd42a942 | 308 | CONFIG_IS_ENABLED(EFI_PARTITION) |
51b2f4f0 HS |
309 | printf("\nPartition Map for %s device %d -- Partition Type: %s\n\n", |
310 | uclass_get_name(desc->uclass_id), desc->devnum, type); | |
0c9c8fb5 | 311 | #endif /* any CONFIG_..._PARTITION */ |
96e5b03c | 312 | } |
0c9c8fb5 | 313 | |
5aab05d9 | 314 | void part_print(struct blk_desc *desc) |
affae2bf | 315 | { |
96e5b03c | 316 | struct part_driver *drv; |
affae2bf | 317 | |
5aab05d9 | 318 | drv = part_driver_lookup_type(desc); |
96e5b03c SG |
319 | if (!drv) { |
320 | printf("## Unknown partition table type %x\n", | |
5aab05d9 | 321 | desc->part_type); |
affae2bf | 322 | return; |
affae2bf | 323 | } |
96e5b03c SG |
324 | |
325 | PRINTF("## Testing for valid %s partition ##\n", drv->name); | |
5aab05d9 | 326 | print_part_header(drv->name, desc); |
96e5b03c | 327 | if (drv->print) |
5aab05d9 | 328 | drv->print(desc); |
affae2bf WD |
329 | } |
330 | ||
5aab05d9 | 331 | int part_get_info_by_type(struct blk_desc *desc, int part, int part_type, |
387f8be5 | 332 | struct disk_partition *info) |
2f501646 | 333 | { |
96e5b03c | 334 | struct part_driver *drv; |
2f501646 | 335 | |
a51eb8de | 336 | if (blk_enabled()) { |
a51eb8de | 337 | /* The common case is no UUID support */ |
c5f1d005 | 338 | disk_partition_clr_uuid(info); |
bcd64542 | 339 | disk_partition_clr_type_guid(info); |
894bfbbf | 340 | |
387f8be5 | 341 | if (part_type == PART_TYPE_UNKNOWN) { |
5aab05d9 | 342 | drv = part_driver_lookup_type(desc); |
387f8be5 JW |
343 | } else { |
344 | drv = part_driver_get_type(part_type); | |
345 | } | |
346 | ||
a51eb8de SG |
347 | if (!drv) { |
348 | debug("## Unknown partition table type %x\n", | |
5aab05d9 | 349 | desc->part_type); |
a51eb8de SG |
350 | return -EPROTONOSUPPORT; |
351 | } | |
352 | if (!drv->get_info) { | |
353 | PRINTF("## Driver %s does not have the get_info() method\n", | |
354 | drv->name); | |
355 | return -ENOSYS; | |
356 | } | |
5aab05d9 | 357 | if (drv->get_info(desc, part, info) == 0) { |
a51eb8de SG |
358 | PRINTF("## Valid %s partition found ##\n", drv->name); |
359 | return 0; | |
360 | } | |
2f501646 | 361 | } |
2f501646 | 362 | |
59715754 | 363 | return -ENOENT; |
2f501646 | 364 | } |
99d2c205 | 365 | |
5aab05d9 | 366 | int part_get_info(struct blk_desc *desc, int part, |
387f8be5 JW |
367 | struct disk_partition *info) |
368 | { | |
5aab05d9 | 369 | return part_get_info_by_type(desc, part, PART_TYPE_UNKNOWN, info); |
387f8be5 JW |
370 | } |
371 | ||
5aab05d9 | 372 | int part_get_info_whole_disk(struct blk_desc *desc, |
0528979f | 373 | struct disk_partition *info) |
4bbcc965 RC |
374 | { |
375 | info->start = 0; | |
5aab05d9 SG |
376 | info->size = desc->lba; |
377 | info->blksz = desc->blksz; | |
4bbcc965 RC |
378 | info->bootable = 0; |
379 | strcpy((char *)info->type, BOOT_PART_TYPE); | |
380 | strcpy((char *)info->name, "Whole Disk"); | |
c5f1d005 | 381 | disk_partition_clr_uuid(info); |
bcd64542 | 382 | disk_partition_clr_type_guid(info); |
4bbcc965 RC |
383 | |
384 | return 0; | |
385 | } | |
386 | ||
ebac37cf | 387 | int blk_get_device_by_str(const char *ifname, const char *dev_hwpart_str, |
5aab05d9 | 388 | struct blk_desc **desc) |
2023e608 SW |
389 | { |
390 | char *ep; | |
336b6f90 SW |
391 | char *dup_str = NULL; |
392 | const char *dev_str, *hwpart_str; | |
393 | int dev, hwpart; | |
394 | ||
395 | hwpart_str = strchr(dev_hwpart_str, '.'); | |
396 | if (hwpart_str) { | |
397 | dup_str = strdup(dev_hwpart_str); | |
398 | dup_str[hwpart_str - dev_hwpart_str] = 0; | |
399 | dev_str = dup_str; | |
400 | hwpart_str++; | |
401 | } else { | |
402 | dev_str = dev_hwpart_str; | |
ecdd57e2 | 403 | hwpart = 0; |
336b6f90 | 404 | } |
2023e608 | 405 | |
7e5f460e | 406 | dev = hextoul(dev_str, &ep); |
2023e608 SW |
407 | if (*ep) { |
408 | printf("** Bad device specification %s %s **\n", | |
409 | ifname, dev_str); | |
1598dfcb | 410 | dev = -EINVAL; |
336b6f90 SW |
411 | goto cleanup; |
412 | } | |
413 | ||
414 | if (hwpart_str) { | |
7e5f460e | 415 | hwpart = hextoul(hwpart_str, &ep); |
336b6f90 SW |
416 | if (*ep) { |
417 | printf("** Bad HW partition specification %s %s **\n", | |
418 | ifname, hwpart_str); | |
1598dfcb | 419 | dev = -EINVAL; |
336b6f90 SW |
420 | goto cleanup; |
421 | } | |
2023e608 SW |
422 | } |
423 | ||
5aab05d9 SG |
424 | *desc = get_dev_hwpart(ifname, dev, hwpart); |
425 | if (!(*desc) || ((*desc)->type == DEV_TYPE_UNKNOWN)) { | |
8f690848 | 426 | debug("** Bad device %s %s **\n", ifname, dev_hwpart_str); |
59715754 | 427 | dev = -ENODEV; |
336b6f90 | 428 | goto cleanup; |
2023e608 SW |
429 | } |
430 | ||
a51eb8de SG |
431 | if (blk_enabled()) { |
432 | /* | |
433 | * Updates the partition table for the specified hw partition. | |
434 | * Always should be done, otherwise hw partition 0 will return | |
435 | * stale data after displaying a non-zero hw partition. | |
436 | */ | |
5aab05d9 SG |
437 | if ((*desc)->uclass_id == UCLASS_MMC) |
438 | part_init(*desc); | |
a51eb8de | 439 | } |
99e7fc8a | 440 | |
336b6f90 SW |
441 | cleanup: |
442 | free(dup_str); | |
2023e608 SW |
443 | return dev; |
444 | } | |
445 | ||
10a37fd7 SW |
446 | #define PART_UNSPECIFIED -2 |
447 | #define PART_AUTO -1 | |
e35929e4 | 448 | int blk_get_device_part_str(const char *ifname, const char *dev_part_str, |
5aab05d9 | 449 | struct blk_desc **desc, |
0528979f | 450 | struct disk_partition *info, int allow_whole_dev) |
99d2c205 | 451 | { |
59715754 | 452 | int ret; |
10a37fd7 SW |
453 | const char *part_str; |
454 | char *dup_str = NULL; | |
455 | const char *dev_str; | |
99d2c205 | 456 | int dev; |
10a37fd7 SW |
457 | char *ep; |
458 | int p; | |
459 | int part; | |
0528979f | 460 | struct disk_partition tmpinfo; |
10a37fd7 | 461 | |
5aab05d9 | 462 | *desc = NULL; |
be2e42fa HS |
463 | memset(info, 0, sizeof(*info)); |
464 | ||
f676b451 | 465 | #if IS_ENABLED(CONFIG_SANDBOX) || IS_ENABLED(CONFIG_SEMIHOSTING) |
4d907025 | 466 | /* |
3f9eb6e1 | 467 | * Special-case a pseudo block device "hostfs", to allow access to the |
4d907025 SW |
468 | * host's own filesystem. |
469 | */ | |
be2e42fa | 470 | if (!strcmp(ifname, "hostfs")) { |
4d907025 | 471 | strcpy((char *)info->type, BOOT_PART_TYPE); |
f676b451 | 472 | strcpy((char *)info->name, "Host filesystem"); |
4d907025 SW |
473 | |
474 | return 0; | |
475 | } | |
afc1744e | 476 | #endif |
4d907025 | 477 | |
2f03a639 | 478 | #if IS_ENABLED(CONFIG_CMD_UBIFS) && !IS_ENABLED(CONFIG_SPL_BUILD) |
251cee0d | 479 | /* |
3174cafd | 480 | * Special-case ubi, ubi goes through a mtd, rather than through |
251cee0d HG |
481 | * a regular block device. |
482 | */ | |
be2e42fa | 483 | if (!strcmp(ifname, "ubi")) { |
251cee0d HG |
484 | if (!ubifs_is_mounted()) { |
485 | printf("UBIFS not mounted, use ubifsmount to mount volume first!\n"); | |
59715754 | 486 | return -EINVAL; |
251cee0d HG |
487 | } |
488 | ||
251cee0d HG |
489 | strcpy((char *)info->type, BOOT_PART_TYPE); |
490 | strcpy((char *)info->name, "UBI"); | |
251cee0d HG |
491 | return 0; |
492 | } | |
493 | #endif | |
494 | ||
10a37fd7 | 495 | /* If no dev_part_str, use bootdevice environment variable */ |
350635fe HS |
496 | if (CONFIG_IS_ENABLED(ENV_SUPPORT)) { |
497 | if (!dev_part_str || !strlen(dev_part_str) || | |
498 | !strcmp(dev_part_str, "-")) | |
499 | dev_part_str = env_get("bootdevice"); | |
500 | } | |
10a37fd7 SW |
501 | |
502 | /* If still no dev_part_str, it's an error */ | |
503 | if (!dev_part_str) { | |
504 | printf("** No device specified **\n"); | |
59715754 | 505 | ret = -ENODEV; |
10a37fd7 SW |
506 | goto cleanup; |
507 | } | |
508 | ||
509 | /* Separate device and partition ID specification */ | |
510 | part_str = strchr(dev_part_str, ':'); | |
511 | if (part_str) { | |
512 | dup_str = strdup(dev_part_str); | |
513 | dup_str[part_str - dev_part_str] = 0; | |
514 | dev_str = dup_str; | |
515 | part_str++; | |
516 | } else { | |
517 | dev_str = dev_part_str; | |
99d2c205 RH |
518 | } |
519 | ||
10a37fd7 | 520 | /* Look up the device */ |
5aab05d9 | 521 | dev = blk_get_device_by_str(ifname, dev_str, desc); |
59715754 | 522 | if (dev < 0) { |
192e7012 OB |
523 | printf("** Bad device specification %s %s **\n", |
524 | ifname, dev_str); | |
59715754 | 525 | ret = dev; |
10a37fd7 | 526 | goto cleanup; |
59715754 | 527 | } |
10a37fd7 SW |
528 | |
529 | /* Convert partition ID string to number */ | |
530 | if (!part_str || !*part_str) { | |
531 | part = PART_UNSPECIFIED; | |
532 | } else if (!strcmp(part_str, "auto")) { | |
533 | part = PART_AUTO; | |
534 | } else { | |
535 | /* Something specified -> use exactly that */ | |
7e5f460e | 536 | part = (int)hextoul(part_str, &ep); |
10a37fd7 SW |
537 | /* |
538 | * Less than whole string converted, | |
539 | * or request for whole device, but caller requires partition. | |
540 | */ | |
541 | if (*ep || (part == 0 && !allow_whole_dev)) { | |
542 | printf("** Bad partition specification %s %s **\n", | |
543 | ifname, dev_part_str); | |
59715754 | 544 | ret = -ENOENT; |
10a37fd7 SW |
545 | goto cleanup; |
546 | } | |
547 | } | |
548 | ||
549 | /* | |
550 | * No partition table on device, | |
551 | * or user requested partition 0 (entire device). | |
552 | */ | |
5aab05d9 SG |
553 | if (((*desc)->part_type == PART_TYPE_UNKNOWN) || !part) { |
554 | if (!(*desc)->lba) { | |
10a37fd7 SW |
555 | printf("** Bad device size - %s %s **\n", ifname, |
556 | dev_str); | |
59715754 | 557 | ret = -EINVAL; |
10a37fd7 SW |
558 | goto cleanup; |
559 | } | |
99d2c205 | 560 | |
10a37fd7 SW |
561 | /* |
562 | * If user specified a partition ID other than 0, | |
563 | * or the calling command only accepts partitions, | |
564 | * it's an error. | |
565 | */ | |
566 | if ((part > 0) || (!allow_whole_dev)) { | |
567 | printf("** No partition table - %s %s **\n", ifname, | |
568 | dev_str); | |
59715754 | 569 | ret = -EPROTONOSUPPORT; |
10a37fd7 | 570 | goto cleanup; |
99d2c205 | 571 | } |
10a37fd7 | 572 | |
5aab05d9 | 573 | (*desc)->log2blksz = LOG2((*desc)->blksz); |
50ffc3b6 | 574 | |
5aab05d9 | 575 | part_get_info_whole_disk(*desc, info); |
99d2c205 | 576 | |
10a37fd7 SW |
577 | ret = 0; |
578 | goto cleanup; | |
99d2c205 RH |
579 | } |
580 | ||
10a37fd7 SW |
581 | /* |
582 | * Now there's known to be a partition table, | |
583 | * not specifying a partition means to pick partition 1. | |
584 | */ | |
585 | if (part == PART_UNSPECIFIED) | |
586 | part = 1; | |
587 | ||
588 | /* | |
589 | * If user didn't specify a partition number, or did specify something | |
590 | * other than "auto", use that partition number directly. | |
591 | */ | |
592 | if (part != PART_AUTO) { | |
5aab05d9 | 593 | ret = part_get_info(*desc, part, info); |
10a37fd7 SW |
594 | if (ret) { |
595 | printf("** Invalid partition %d **\n", part); | |
596 | goto cleanup; | |
597 | } | |
598 | } else { | |
599 | /* | |
600 | * Find the first bootable partition. | |
601 | * If none are bootable, fall back to the first valid partition. | |
602 | */ | |
603 | part = 0; | |
604 | for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) { | |
5aab05d9 | 605 | ret = part_get_info(*desc, p, info); |
10a37fd7 SW |
606 | if (ret) |
607 | continue; | |
608 | ||
609 | /* | |
610 | * First valid partition, or new better partition? | |
611 | * If so, save partition ID. | |
612 | */ | |
613 | if (!part || info->bootable) | |
614 | part = p; | |
615 | ||
616 | /* Best possible partition? Stop searching. */ | |
617 | if (info->bootable) | |
618 | break; | |
619 | ||
620 | /* | |
621 | * We now need to search further for best possible. | |
622 | * If we what we just queried was the best so far, | |
623 | * save the info since we over-write it next loop. | |
624 | */ | |
625 | if (part == p) | |
626 | tmpinfo = *info; | |
627 | } | |
628 | /* If we found any acceptable partition */ | |
629 | if (part) { | |
630 | /* | |
631 | * If we searched all possible partition IDs, | |
632 | * return the first valid partition we found. | |
633 | */ | |
634 | if (p == MAX_SEARCH_PARTITIONS + 1) | |
635 | *info = tmpinfo; | |
10a37fd7 SW |
636 | } else { |
637 | printf("** No valid partitions found **\n"); | |
638 | goto cleanup; | |
639 | } | |
99d2c205 RH |
640 | } |
641 | if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) { | |
642 | printf("** Invalid partition type \"%.32s\"" | |
643 | " (expect \"" BOOT_PART_TYPE "\")\n", | |
644 | info->type); | |
59715754 | 645 | ret = -EINVAL; |
10a37fd7 | 646 | goto cleanup; |
99d2c205 RH |
647 | } |
648 | ||
5aab05d9 | 649 | (*desc)->log2blksz = LOG2((*desc)->blksz); |
50ffc3b6 | 650 | |
10a37fd7 SW |
651 | ret = part; |
652 | goto cleanup; | |
99d2c205 | 653 | |
10a37fd7 SW |
654 | cleanup: |
655 | free(dup_str); | |
656 | return ret; | |
99d2c205 | 657 | } |
87b8530f | 658 | |
5aab05d9 | 659 | int part_get_info_by_name(struct blk_desc *desc, const char *name, |
8faeb1d7 | 660 | struct disk_partition *info) |
87b8530f | 661 | { |
87b8530f | 662 | struct part_driver *part_drv; |
56670d6f KY |
663 | int ret; |
664 | int i; | |
665 | ||
5aab05d9 | 666 | part_drv = part_driver_lookup_type(desc); |
56670d6f KY |
667 | if (!part_drv) |
668 | return -1; | |
50f7b2ef | 669 | |
670 | if (!part_drv->get_info) { | |
671 | log_debug("## Driver %s does not have the get_info() method\n", | |
672 | part_drv->name); | |
673 | return -ENOSYS; | |
674 | } | |
675 | ||
56670d6f | 676 | for (i = 1; i < part_drv->max_entries; i++) { |
5aab05d9 | 677 | ret = part_drv->get_info(desc, i, info); |
56670d6f | 678 | if (ret != 0) { |
ac0cd526 SP |
679 | /* |
680 | * Partition with this index can't be obtained, but | |
681 | * further partitions might be, so keep checking. | |
682 | */ | |
683 | continue; | |
56670d6f KY |
684 | } |
685 | if (strcmp(name, (const char *)info->name) == 0) { | |
686 | /* matched */ | |
687 | return i; | |
87b8530f PK |
688 | } |
689 | } | |
56670d6f | 690 | |
59715754 | 691 | return -ENOENT; |
87b8530f | 692 | } |
da2ee24d | 693 | |
6eccd1f7 RT |
694 | /** |
695 | * Get partition info from device number and partition name. | |
696 | * | |
697 | * Parse a device number and partition name string in the form of | |
81c1aa89 SA |
698 | * "devicenum.hwpartnum#partition_name", for example "0.1#misc". devicenum and |
699 | * hwpartnum are both optional, defaulting to 0. If the partition is found, | |
5aab05d9 | 700 | * sets desc and part_info accordingly with the information of the |
81c1aa89 | 701 | * partition with the given partition_name. |
6eccd1f7 RT |
702 | * |
703 | * @param[in] dev_iface Device interface | |
81c1aa89 | 704 | * @param[in] dev_part_str Input string argument, like "0.1#misc" |
5aab05d9 | 705 | * @param[out] desc Place to store the device description pointer |
6eccd1f7 | 706 | * @param[out] part_info Place to store the partition information |
185f812c | 707 | * Return: 0 on success, or a negative on error |
6eccd1f7 RT |
708 | */ |
709 | static int part_get_info_by_dev_and_name(const char *dev_iface, | |
710 | const char *dev_part_str, | |
5aab05d9 | 711 | struct blk_desc **desc, |
0528979f | 712 | struct disk_partition *part_info) |
6eccd1f7 | 713 | { |
81c1aa89 SA |
714 | char *dup_str = NULL; |
715 | const char *dev_str, *part_str; | |
716 | int ret; | |
6eccd1f7 | 717 | |
81c1aa89 | 718 | /* Separate device and partition name specification */ |
26de4296 SA |
719 | if (dev_part_str) |
720 | part_str = strchr(dev_part_str, '#'); | |
721 | else | |
722 | part_str = NULL; | |
723 | ||
81c1aa89 SA |
724 | if (part_str) { |
725 | dup_str = strdup(dev_part_str); | |
726 | dup_str[part_str - dev_part_str] = 0; | |
727 | dev_str = dup_str; | |
728 | part_str++; | |
729 | } else { | |
6eccd1f7 RT |
730 | return -EINVAL; |
731 | } | |
6eccd1f7 | 732 | |
5aab05d9 | 733 | ret = blk_get_device_by_str(dev_iface, dev_str, desc); |
fe5a5091 | 734 | if (ret < 0) |
81c1aa89 SA |
735 | goto cleanup; |
736 | ||
5aab05d9 | 737 | ret = part_get_info_by_name(*desc, part_str, part_info); |
59715754 | 738 | if (ret < 0) |
6eccd1f7 | 739 | printf("Could not find \"%s\" partition\n", part_str); |
81c1aa89 SA |
740 | |
741 | cleanup: | |
742 | free(dup_str); | |
59715754 | 743 | return ret; |
6eccd1f7 RT |
744 | } |
745 | ||
746 | int part_get_info_by_dev_and_name_or_num(const char *dev_iface, | |
747 | const char *dev_part_str, | |
5aab05d9 | 748 | struct blk_desc **desc, |
9f7bb282 SA |
749 | struct disk_partition *part_info, |
750 | int allow_whole_dev) | |
6eccd1f7 | 751 | { |
59715754 SA |
752 | int ret; |
753 | ||
6eccd1f7 | 754 | /* Split the part_name if passed as "$dev_num#part_name". */ |
5aab05d9 SG |
755 | ret = part_get_info_by_dev_and_name(dev_iface, dev_part_str, desc, |
756 | part_info); | |
59715754 SA |
757 | if (ret >= 0) |
758 | return ret; | |
6eccd1f7 RT |
759 | /* |
760 | * Couldn't lookup by name, try looking up the partition description | |
761 | * directly. | |
762 | */ | |
5aab05d9 SG |
763 | ret = blk_get_device_part_str(dev_iface, dev_part_str, desc, part_info, |
764 | allow_whole_dev); | |
59715754 | 765 | if (ret < 0) |
6eccd1f7 RT |
766 | printf("Couldn't find partition %s %s\n", |
767 | dev_iface, dev_part_str); | |
59715754 | 768 | return ret; |
6eccd1f7 RT |
769 | } |
770 | ||
5aab05d9 SG |
771 | void part_set_generic_name(const struct blk_desc *desc, int part_num, |
772 | char *name) | |
da2ee24d PK |
773 | { |
774 | char *devtype; | |
775 | ||
5aab05d9 | 776 | switch (desc->uclass_id) { |
e33a5c6b SG |
777 | case UCLASS_IDE: |
778 | case UCLASS_AHCI: | |
da2ee24d PK |
779 | devtype = "hd"; |
780 | break; | |
e33a5c6b | 781 | case UCLASS_SCSI: |
da2ee24d PK |
782 | devtype = "sd"; |
783 | break; | |
e33a5c6b | 784 | case UCLASS_USB: |
da2ee24d PK |
785 | devtype = "usbd"; |
786 | break; | |
e33a5c6b | 787 | case UCLASS_MMC: |
da2ee24d PK |
788 | devtype = "mmcsd"; |
789 | break; | |
790 | default: | |
791 | devtype = "xx"; | |
792 | break; | |
793 | } | |
794 | ||
5aab05d9 | 795 | sprintf(name, "%s%c%d", devtype, 'a' + desc->devnum, part_num); |
da2ee24d | 796 | } |
dcffa442 SG |
797 | |
798 | int part_get_bootable(struct blk_desc *desc) | |
799 | { | |
800 | struct disk_partition info; | |
801 | int p; | |
802 | ||
803 | for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) { | |
804 | int ret; | |
805 | ||
806 | ret = part_get_info(desc, p, &info); | |
807 | if (!ret && info.bootable) | |
808 | return p; | |
809 | } | |
810 | ||
811 | return 0; | |
812 | } |