]>
git.ipfire.org Git - people/ms/u-boot.git/blob - disk/part.c
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * SPDX-License-Identifier: GPL-2.0+
14 #include <ubifs_uboot.h>
19 #define PRINTF(fmt,args...) printf (fmt ,##args)
21 #define PRINTF(fmt,args...)
24 const struct block_drvr block_drvr
[] = {
25 #if defined(CONFIG_CMD_IDE)
26 { .name
= "ide", .get_dev
= ide_get_dev
, },
28 #if defined(CONFIG_CMD_SATA)
29 {.name
= "sata", .get_dev
= sata_get_dev
, },
31 #if defined(CONFIG_SCSI)
32 { .name
= "scsi", .get_dev
= scsi_get_dev
, },
34 #if defined(CONFIG_CMD_USB) && defined(CONFIG_USB_STORAGE)
35 { .name
= "usb", .get_dev
= usb_stor_get_dev
, },
37 #if defined(CONFIG_MMC)
40 .get_dev
= mmc_get_dev
,
41 .select_hwpart
= mmc_select_hwpart
,
44 #if defined(CONFIG_SYSTEMACE)
45 { .name
= "ace", .get_dev
= systemace_get_dev
, },
47 #if defined(CONFIG_SANDBOX)
48 { .name
= "host", .get_dev
= host_get_dev
, },
53 DECLARE_GLOBAL_DATA_PTR
;
55 #ifdef HAVE_BLOCK_DEVICE
56 static struct part_driver
*part_driver_lookup_type(int part_type
)
58 struct part_driver
*drv
=
59 ll_entry_start(struct part_driver
, part_driver
);
60 const int n_ents
= ll_entry_count(struct part_driver
, part_driver
);
61 struct part_driver
*entry
;
63 for (entry
= drv
; entry
!= drv
+ n_ents
; entry
++) {
64 if (part_type
== entry
->part_type
)
72 static struct blk_desc
*get_dev_hwpart(const char *ifname
, int dev
, int hwpart
)
74 const struct block_drvr
*drvr
= block_drvr
;
75 struct blk_desc
* (*reloc_get_dev
)(int dev
);
76 int (*select_hwpart
)(int dev_num
, int hwpart
);
84 #ifdef CONFIG_NEEDS_MANUAL_RELOC
85 name
+= gd
->reloc_off
;
89 reloc_get_dev
= drvr
->get_dev
;
90 select_hwpart
= drvr
->select_hwpart
;
91 #ifdef CONFIG_NEEDS_MANUAL_RELOC
92 name
+= gd
->reloc_off
;
93 reloc_get_dev
+= gd
->reloc_off
;
95 select_hwpart
+= gd
->reloc_off
;
97 if (strncmp(ifname
, name
, strlen(name
)) == 0) {
98 struct blk_desc
*dev_desc
= reloc_get_dev(dev
);
101 if (hwpart
== 0 && !select_hwpart
)
105 ret
= select_hwpart(dev_desc
->devnum
, hwpart
);
115 struct blk_desc
*blk_get_dev(const char *ifname
, int dev
)
117 return get_dev_hwpart(ifname
, dev
, 0);
120 struct blk_desc
*get_dev_hwpart(const char *ifname
, int dev
, int hwpart
)
125 struct blk_desc
*blk_get_dev(const char *ifname
, int dev
)
131 #ifdef HAVE_BLOCK_DEVICE
133 /* ------------------------------------------------------------------------- */
135 * reports device info to the user
139 typedef uint64_t lba512_t
;
141 typedef lbaint_t lba512_t
;
145 * Overflowless variant of (block_count * mul_by / div_by)
146 * when div_by > mul_by
148 static lba512_t
lba512_muldiv(lba512_t block_count
, lba512_t mul_by
, lba512_t div_by
)
150 lba512_t bc_quot
, bc_rem
;
152 /* x * m / d == x / d * m + (x % d) * m / d */
153 bc_quot
= block_count
/ div_by
;
154 bc_rem
= block_count
- div_by
* bc_quot
;
155 return bc_quot
* mul_by
+ (bc_rem
* mul_by
) / div_by
;
158 void dev_print (struct blk_desc
*dev_desc
)
160 lba512_t lba512
; /* number of blocks if 512bytes block size */
162 if (dev_desc
->type
== DEV_TYPE_UNKNOWN
) {
163 puts ("not available\n");
167 switch (dev_desc
->if_type
) {
169 printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n",
170 dev_desc
->target
,dev_desc
->lun
,
178 printf ("Model: %s Firm: %s Ser#: %s\n",
186 printf ("Vendor: %s Rev: %s Prod: %s\n",
192 puts("device type DOC\n");
194 case IF_TYPE_UNKNOWN
:
195 puts("device type unknown\n");
198 printf("Unhandled device type: %i\n", dev_desc
->if_type
);
202 if (dev_desc
->removable
)
204 switch (dev_desc
->type
& 0x1F) {
205 case DEV_TYPE_HARDDISK
:
211 case DEV_TYPE_OPDISK
:
212 puts ("Optical Device");
218 printf ("# %02X #", dev_desc
->type
& 0x1F);
222 if (dev_desc
->lba
> 0L && dev_desc
->blksz
> 0L) {
223 ulong mb
, mb_quot
, mb_rem
, gb
, gb_quot
, gb_rem
;
228 lba512
= (lba
* (dev_desc
->blksz
/512));
229 /* round to 1 digit */
230 /* 2048 = (1024 * 1024) / 512 MB */
231 mb
= lba512_muldiv(lba512
, 10, 2048);
234 mb_rem
= mb
- (10 * mb_quot
);
238 gb_rem
= gb
- (10 * gb_quot
);
241 printf (" Supports 48-bit addressing\n");
243 #if defined(CONFIG_SYS_64BIT_LBA)
244 printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%Ld x %ld)\n",
250 printf (" Capacity: %ld.%ld MB = %ld.%ld GB (%ld x %ld)\n",
257 puts (" Capacity: not available\n");
262 #ifdef HAVE_BLOCK_DEVICE
264 void part_init(struct blk_desc
*dev_desc
)
266 struct part_driver
*drv
=
267 ll_entry_start(struct part_driver
, part_driver
);
268 const int n_ents
= ll_entry_count(struct part_driver
, part_driver
);
269 struct part_driver
*entry
;
271 blkcache_invalidate(dev_desc
->if_type
, dev_desc
->devnum
);
273 dev_desc
->part_type
= PART_TYPE_UNKNOWN
;
274 for (entry
= drv
; entry
!= drv
+ n_ents
; entry
++) {
277 ret
= entry
->test(dev_desc
);
278 debug("%s: try '%s': ret=%d\n", __func__
, entry
->name
, ret
);
280 dev_desc
->part_type
= entry
->part_type
;
286 static void print_part_header(const char *type
, struct blk_desc
*dev_desc
)
288 #if defined(CONFIG_MAC_PARTITION) || \
289 defined(CONFIG_DOS_PARTITION) || \
290 defined(CONFIG_ISO_PARTITION) || \
291 defined(CONFIG_AMIGA_PARTITION) || \
292 defined(CONFIG_EFI_PARTITION)
293 puts ("\nPartition Map for ");
294 switch (dev_desc
->if_type
) {
323 printf (" device %d -- Partition Type: %s\n\n",
324 dev_desc
->devnum
, type
);
325 #endif /* any CONFIG_..._PARTITION */
328 void part_print(struct blk_desc
*dev_desc
)
330 struct part_driver
*drv
;
332 drv
= part_driver_lookup_type(dev_desc
->part_type
);
334 printf("## Unknown partition table type %x\n",
335 dev_desc
->part_type
);
339 PRINTF("## Testing for valid %s partition ##\n", drv
->name
);
340 print_part_header(drv
->name
, dev_desc
);
342 drv
->print(dev_desc
);
345 #endif /* HAVE_BLOCK_DEVICE */
347 int part_get_info(struct blk_desc
*dev_desc
, int part
,
348 disk_partition_t
*info
)
350 #ifdef HAVE_BLOCK_DEVICE
351 struct part_driver
*drv
;
353 #ifdef CONFIG_PARTITION_UUIDS
354 /* The common case is no UUID support */
357 #ifdef CONFIG_PARTITION_TYPE_GUID
358 info
->type_guid
[0] = 0;
361 drv
= part_driver_lookup_type(dev_desc
->part_type
);
363 debug("## Unknown partition table type %x\n",
364 dev_desc
->part_type
);
365 return -EPROTONOSUPPORT
;
367 if (!drv
->get_info
) {
368 PRINTF("## Driver %s does not have the get_info() method\n",
372 if (drv
->get_info(dev_desc
, part
, info
) == 0) {
373 PRINTF("## Valid %s partition found ##\n", drv
->name
);
376 #endif /* HAVE_BLOCK_DEVICE */
381 int blk_get_device_by_str(const char *ifname
, const char *dev_hwpart_str
,
382 struct blk_desc
**dev_desc
)
385 char *dup_str
= NULL
;
386 const char *dev_str
, *hwpart_str
;
389 hwpart_str
= strchr(dev_hwpart_str
, '.');
391 dup_str
= strdup(dev_hwpart_str
);
392 dup_str
[hwpart_str
- dev_hwpart_str
] = 0;
396 dev_str
= dev_hwpart_str
;
400 dev
= simple_strtoul(dev_str
, &ep
, 16);
402 printf("** Bad device specification %s %s **\n",
409 hwpart
= simple_strtoul(hwpart_str
, &ep
, 16);
411 printf("** Bad HW partition specification %s %s **\n",
418 *dev_desc
= get_dev_hwpart(ifname
, dev
, hwpart
);
419 if (!(*dev_desc
) || ((*dev_desc
)->type
== DEV_TYPE_UNKNOWN
)) {
420 printf("** Bad device %s %s **\n", ifname
, dev_hwpart_str
);
425 #ifdef HAVE_BLOCK_DEVICE
427 * Updates the partition table for the specified hw partition.
428 * Does not need to be done for hwpart 0 since it is default and
432 part_init(*dev_desc
);
440 #define PART_UNSPECIFIED -2
442 #define MAX_SEARCH_PARTITIONS 16
443 int blk_get_device_part_str(const char *ifname
, const char *dev_part_str
,
444 struct blk_desc
**dev_desc
,
445 disk_partition_t
*info
, int allow_whole_dev
)
448 const char *part_str
;
449 char *dup_str
= NULL
;
455 disk_partition_t tmpinfo
;
457 #ifdef CONFIG_SANDBOX
459 * Special-case a pseudo block device "hostfs", to allow access to the
460 * host's own filesystem.
462 if (0 == strcmp(ifname
, "hostfs")) {
468 strcpy((char *)info
->type
, BOOT_PART_TYPE
);
469 strcpy((char *)info
->name
, "Sandbox host");
470 #ifdef CONFIG_PARTITION_UUIDS
473 #ifdef CONFIG_PARTITION_TYPE_GUID
474 info
->type_guid
[0] = 0;
481 #ifdef CONFIG_CMD_UBIFS
483 * Special-case ubi, ubi goes through a mtd, rathen then through
484 * a regular block device.
486 if (0 == strcmp(ifname
, "ubi")) {
487 if (!ubifs_is_mounted()) {
488 printf("UBIFS not mounted, use ubifsmount to mount volume first!\n");
493 memset(info
, 0, sizeof(*info
));
494 strcpy((char *)info
->type
, BOOT_PART_TYPE
);
495 strcpy((char *)info
->name
, "UBI");
496 #ifdef CONFIG_PARTITION_UUIDS
503 /* If no dev_part_str, use bootdevice environment variable */
504 if (!dev_part_str
|| !strlen(dev_part_str
) ||
505 !strcmp(dev_part_str
, "-"))
506 dev_part_str
= getenv("bootdevice");
508 /* If still no dev_part_str, it's an error */
510 printf("** No device specified **\n");
514 /* Separate device and partition ID specification */
515 part_str
= strchr(dev_part_str
, ':');
517 dup_str
= strdup(dev_part_str
);
518 dup_str
[part_str
- dev_part_str
] = 0;
522 dev_str
= dev_part_str
;
525 /* Look up the device */
526 dev
= blk_get_device_by_str(ifname
, dev_str
, dev_desc
);
530 /* Convert partition ID string to number */
531 if (!part_str
|| !*part_str
) {
532 part
= PART_UNSPECIFIED
;
533 } else if (!strcmp(part_str
, "auto")) {
536 /* Something specified -> use exactly that */
537 part
= (int)simple_strtoul(part_str
, &ep
, 16);
539 * Less than whole string converted,
540 * or request for whole device, but caller requires partition.
542 if (*ep
|| (part
== 0 && !allow_whole_dev
)) {
543 printf("** Bad partition specification %s %s **\n",
544 ifname
, dev_part_str
);
550 * No partition table on device,
551 * or user requested partition 0 (entire device).
553 if (((*dev_desc
)->part_type
== PART_TYPE_UNKNOWN
) ||
555 if (!(*dev_desc
)->lba
) {
556 printf("** Bad device size - %s %s **\n", ifname
,
562 * If user specified a partition ID other than 0,
563 * or the calling command only accepts partitions,
566 if ((part
> 0) || (!allow_whole_dev
)) {
567 printf("** No partition table - %s %s **\n", ifname
,
572 (*dev_desc
)->log2blksz
= LOG2((*dev_desc
)->blksz
);
575 info
->size
= (*dev_desc
)->lba
;
576 info
->blksz
= (*dev_desc
)->blksz
;
578 strcpy((char *)info
->type
, BOOT_PART_TYPE
);
579 strcpy((char *)info
->name
, "Whole Disk");
580 #ifdef CONFIG_PARTITION_UUIDS
583 #ifdef CONFIG_PARTITION_TYPE_GUID
584 info
->type_guid
[0] = 0;
592 * Now there's known to be a partition table,
593 * not specifying a partition means to pick partition 1.
595 if (part
== PART_UNSPECIFIED
)
599 * If user didn't specify a partition number, or did specify something
600 * other than "auto", use that partition number directly.
602 if (part
!= PART_AUTO
) {
603 ret
= part_get_info(*dev_desc
, part
, info
);
605 printf("** Invalid partition %d **\n", part
);
610 * Find the first bootable partition.
611 * If none are bootable, fall back to the first valid partition.
614 for (p
= 1; p
<= MAX_SEARCH_PARTITIONS
; p
++) {
615 ret
= part_get_info(*dev_desc
, p
, info
);
620 * First valid partition, or new better partition?
621 * If so, save partition ID.
623 if (!part
|| info
->bootable
)
626 /* Best possible partition? Stop searching. */
631 * We now need to search further for best possible.
632 * If we what we just queried was the best so far,
633 * save the info since we over-write it next loop.
638 /* If we found any acceptable partition */
641 * If we searched all possible partition IDs,
642 * return the first valid partition we found.
644 if (p
== MAX_SEARCH_PARTITIONS
+ 1)
647 printf("** No valid partitions found **\n");
652 if (strncmp((char *)info
->type
, BOOT_PART_TYPE
, sizeof(info
->type
)) != 0) {
653 printf("** Invalid partition type \"%.32s\""
654 " (expect \"" BOOT_PART_TYPE
"\")\n",
660 (*dev_desc
)->log2blksz
= LOG2((*dev_desc
)->blksz
);