1 // SPDX-License-Identifier: GPL-2.0+
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
16 #include <ubifs_uboot.h>
21 #define PRINTF(fmt,args...) printf (fmt ,##args)
23 #define PRINTF(fmt,args...)
26 /* Check all partition types */
27 #define PART_TYPE_ALL -1
29 static struct part_driver *part_driver_get_type(int part_type)
31 struct part_driver *drv =
32 ll_entry_start(struct part_driver, part_driver);
33 const int n_ents = ll_entry_count(struct part_driver, part_driver);
34 struct part_driver *entry;
36 for (entry = drv; entry != drv + n_ents; entry++) {
37 if (part_type == entry->part_type)
45 static struct part_driver *part_driver_lookup_type(struct blk_desc *dev_desc)
47 struct part_driver *drv =
48 ll_entry_start(struct part_driver, part_driver);
49 const int n_ents = ll_entry_count(struct part_driver, part_driver);
50 struct part_driver *entry;
52 if (dev_desc->part_type == PART_TYPE_UNKNOWN) {
53 for (entry = drv; entry != drv + n_ents; entry++) {
56 ret = entry->test(dev_desc);
58 dev_desc->part_type = entry->part_type;
63 return part_driver_get_type(dev_desc->part_type);
70 int part_get_type_by_name(const char *name)
72 struct part_driver *drv =
73 ll_entry_start(struct part_driver, part_driver);
74 const int n_ents = ll_entry_count(struct part_driver, part_driver);
75 struct part_driver *entry;
77 for (entry = drv; entry != drv + n_ents; entry++) {
78 if (!strcasecmp(name, entry->name))
79 return entry->part_type;
83 return PART_TYPE_UNKNOWN;
86 static struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart)
88 struct blk_desc *dev_desc;
93 dev_desc = blk_get_devnum_by_uclass_idname(ifname, dev);
95 debug("%s: No device for iface '%s', dev %d\n", __func__,
99 ret = blk_dselect_hwpart(dev_desc, hwpart);
101 debug("%s: Failed to select h/w partition: err-%d\n", __func__,
109 struct blk_desc *blk_get_dev(const char *ifname, int dev)
114 return get_dev_hwpart(ifname, dev, 0);
117 /* ------------------------------------------------------------------------- */
119 * reports device info to the user
123 typedef uint64_t lba512_t;
125 typedef lbaint_t lba512_t;
129 * Overflowless variant of (block_count * mul_by / 2**right_shift)
130 * when 2**right_shift > mul_by
132 static lba512_t lba512_muldiv(lba512_t block_count, lba512_t mul_by,
135 lba512_t bc_quot, bc_rem;
137 /* x * m / d == x / d * m + (x % d) * m / d */
138 bc_quot = block_count >> right_shift;
139 bc_rem = block_count - (bc_quot << right_shift);
140 return bc_quot * mul_by + ((bc_rem * mul_by) >> right_shift);
143 void dev_print(struct blk_desc *dev_desc)
145 lba512_t lba512; /* number of blocks if 512bytes block size */
147 if (dev_desc->type == DEV_TYPE_UNKNOWN) {
148 puts ("not available\n");
152 switch (dev_desc->uclass_id) {
154 printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n",
155 dev_desc->target,dev_desc->lun,
162 printf ("Model: %s Firm: %s Ser#: %s\n",
173 printf ("Vendor: %s Rev: %s Prod: %s\n",
179 printf("%s VirtIO Block Device\n", dev_desc->vendor);
181 case UCLASS_EFI_MEDIA:
182 printf("EFI media Block Device %d\n", dev_desc->devnum);
185 puts("device type unknown\n");
188 printf("Unhandled device type: %i\n", dev_desc->uclass_id);
192 if (dev_desc->removable)
194 switch (dev_desc->type & 0x1F) {
195 case DEV_TYPE_HARDDISK:
201 case DEV_TYPE_OPDISK:
202 puts ("Optical Device");
208 printf ("# %02X #", dev_desc->type & 0x1F);
212 if (dev_desc->lba > 0L && dev_desc->blksz > 0L) {
213 ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
218 lba512 = (lba * (dev_desc->blksz/512));
219 /* round to 1 digit */
220 /* 2048 = (1024 * 1024) / 512 MB */
221 mb = lba512_muldiv(lba512, 10, 11);
224 mb_rem = mb - (10 * mb_quot);
228 gb_rem = gb - (10 * gb_quot);
231 printf (" Supports 48-bit addressing\n");
233 #if defined(CONFIG_SYS_64BIT_LBA)
234 printf (" Capacity: %lu.%lu MB = %lu.%lu GB (%llu x %lu)\n",
240 printf (" Capacity: %lu.%lu MB = %lu.%lu GB (%lu x %lu)\n",
247 puts (" Capacity: not available\n");
251 void part_init(struct blk_desc *dev_desc)
253 struct part_driver *drv =
254 ll_entry_start(struct part_driver, part_driver);
255 const int n_ents = ll_entry_count(struct part_driver, part_driver);
256 struct part_driver *entry;
258 blkcache_invalidate(dev_desc->uclass_id, dev_desc->devnum);
260 dev_desc->part_type = PART_TYPE_UNKNOWN;
261 for (entry = drv; entry != drv + n_ents; entry++) {
264 ret = entry->test(dev_desc);
265 debug("%s: try '%s': ret=%d\n", __func__, entry->name, ret);
267 dev_desc->part_type = entry->part_type;
273 static void print_part_header(const char *type, struct blk_desc *dev_desc)
275 #if CONFIG_IS_ENABLED(MAC_PARTITION) || \
276 CONFIG_IS_ENABLED(DOS_PARTITION) || \
277 CONFIG_IS_ENABLED(ISO_PARTITION) || \
278 CONFIG_IS_ENABLED(AMIGA_PARTITION) || \
279 CONFIG_IS_ENABLED(EFI_PARTITION)
280 puts ("\nPartition Map for ");
281 switch (dev_desc->uclass_id) {
309 case UCLASS_EFI_MEDIA:
316 printf (" device %d -- Partition Type: %s\n\n",
317 dev_desc->devnum, type);
318 #endif /* any CONFIG_..._PARTITION */
321 void part_print(struct blk_desc *dev_desc)
323 struct part_driver *drv;
325 drv = part_driver_lookup_type(dev_desc);
327 printf("## Unknown partition table type %x\n",
328 dev_desc->part_type);
332 PRINTF("## Testing for valid %s partition ##\n", drv->name);
333 print_part_header(drv->name, dev_desc);
335 drv->print(dev_desc);
338 int part_get_info_by_type(struct blk_desc *dev_desc, int part, int part_type,
339 struct disk_partition *info)
341 struct part_driver *drv;
344 #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
345 /* The common case is no UUID support */
348 #ifdef CONFIG_PARTITION_TYPE_GUID
349 info->type_guid[0] = 0;
352 if (part_type == PART_TYPE_UNKNOWN) {
353 drv = part_driver_lookup_type(dev_desc);
355 drv = part_driver_get_type(part_type);
359 debug("## Unknown partition table type %x\n",
360 dev_desc->part_type);
361 return -EPROTONOSUPPORT;
363 if (!drv->get_info) {
364 PRINTF("## Driver %s does not have the get_info() method\n",
368 if (drv->get_info(dev_desc, part, info) == 0) {
369 PRINTF("## Valid %s partition found ##\n", drv->name);
377 int part_get_info(struct blk_desc *dev_desc, int part,
378 struct disk_partition *info)
380 return part_get_info_by_type(dev_desc, part, PART_TYPE_UNKNOWN, info);
383 int part_get_info_whole_disk(struct blk_desc *dev_desc,
384 struct disk_partition *info)
387 info->size = dev_desc->lba;
388 info->blksz = dev_desc->blksz;
390 strcpy((char *)info->type, BOOT_PART_TYPE);
391 strcpy((char *)info->name, "Whole Disk");
392 #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
395 #ifdef CONFIG_PARTITION_TYPE_GUID
396 info->type_guid[0] = 0;
402 int blk_get_device_by_str(const char *ifname, const char *dev_hwpart_str,
403 struct blk_desc **dev_desc)
406 char *dup_str = NULL;
407 const char *dev_str, *hwpart_str;
410 hwpart_str = strchr(dev_hwpart_str, '.');
412 dup_str = strdup(dev_hwpart_str);
413 dup_str[hwpart_str - dev_hwpart_str] = 0;
417 dev_str = dev_hwpart_str;
421 dev = hextoul(dev_str, &ep);
423 printf("** Bad device specification %s %s **\n",
430 hwpart = hextoul(hwpart_str, &ep);
432 printf("** Bad HW partition specification %s %s **\n",
439 *dev_desc = get_dev_hwpart(ifname, dev, hwpart);
440 if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) {
441 debug("** Bad device %s %s **\n", ifname, dev_hwpart_str);
448 * Updates the partition table for the specified hw partition.
449 * Always should be done, otherwise hw partition 0 will return
450 * stale data after displaying a non-zero hw partition.
452 if ((*dev_desc)->uclass_id == UCLASS_MMC)
453 part_init(*dev_desc);
461 #define PART_UNSPECIFIED -2
463 int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
464 struct blk_desc **dev_desc,
465 struct disk_partition *info, int allow_whole_dev)
468 const char *part_str;
469 char *dup_str = NULL;
475 struct disk_partition tmpinfo;
478 memset(info, 0, sizeof(*info));
480 #if IS_ENABLED(CONFIG_SANDBOX) || IS_ENABLED(CONFIG_SEMIHOSTING)
482 * Special-case a pseudo block device "hostfs", to allow access to the
483 * host's own filesystem.
485 if (!strcmp(ifname, "hostfs")) {
486 strcpy((char *)info->type, BOOT_PART_TYPE);
487 strcpy((char *)info->name, "Host filesystem");
493 #if IS_ENABLED(CONFIG_CMD_UBIFS) && !IS_ENABLED(CONFIG_SPL_BUILD)
495 * Special-case ubi, ubi goes through a mtd, rather than through
496 * a regular block device.
498 if (!strcmp(ifname, "ubi")) {
499 if (!ubifs_is_mounted()) {
500 printf("UBIFS not mounted, use ubifsmount to mount volume first!\n");
504 strcpy((char *)info->type, BOOT_PART_TYPE);
505 strcpy((char *)info->name, "UBI");
510 /* If no dev_part_str, use bootdevice environment variable */
511 if (CONFIG_IS_ENABLED(ENV_SUPPORT)) {
512 if (!dev_part_str || !strlen(dev_part_str) ||
513 !strcmp(dev_part_str, "-"))
514 dev_part_str = env_get("bootdevice");
517 /* If still no dev_part_str, it's an error */
519 printf("** No device specified **\n");
524 /* Separate device and partition ID specification */
525 part_str = strchr(dev_part_str, ':');
527 dup_str = strdup(dev_part_str);
528 dup_str[part_str - dev_part_str] = 0;
532 dev_str = dev_part_str;
535 /* Look up the device */
536 dev = blk_get_device_by_str(ifname, dev_str, dev_desc);
538 printf("** Bad device specification %s %s **\n",
544 /* Convert partition ID string to number */
545 if (!part_str || !*part_str) {
546 part = PART_UNSPECIFIED;
547 } else if (!strcmp(part_str, "auto")) {
550 /* Something specified -> use exactly that */
551 part = (int)hextoul(part_str, &ep);
553 * Less than whole string converted,
554 * or request for whole device, but caller requires partition.
556 if (*ep || (part == 0 && !allow_whole_dev)) {
557 printf("** Bad partition specification %s %s **\n",
558 ifname, dev_part_str);
565 * No partition table on device,
566 * or user requested partition 0 (entire device).
568 if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) ||
570 if (!(*dev_desc)->lba) {
571 printf("** Bad device size - %s %s **\n", ifname,
578 * If user specified a partition ID other than 0,
579 * or the calling command only accepts partitions,
582 if ((part > 0) || (!allow_whole_dev)) {
583 printf("** No partition table - %s %s **\n", ifname,
585 ret = -EPROTONOSUPPORT;
589 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
591 part_get_info_whole_disk(*dev_desc, info);
598 * Now there's known to be a partition table,
599 * not specifying a partition means to pick partition 1.
601 if (part == PART_UNSPECIFIED)
605 * If user didn't specify a partition number, or did specify something
606 * other than "auto", use that partition number directly.
608 if (part != PART_AUTO) {
609 ret = part_get_info(*dev_desc, part, info);
611 printf("** Invalid partition %d **\n", part);
616 * Find the first bootable partition.
617 * If none are bootable, fall back to the first valid partition.
620 for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
621 ret = part_get_info(*dev_desc, p, info);
626 * First valid partition, or new better partition?
627 * If so, save partition ID.
629 if (!part || info->bootable)
632 /* Best possible partition? Stop searching. */
637 * We now need to search further for best possible.
638 * If we what we just queried was the best so far,
639 * save the info since we over-write it next loop.
644 /* If we found any acceptable partition */
647 * If we searched all possible partition IDs,
648 * return the first valid partition we found.
650 if (p == MAX_SEARCH_PARTITIONS + 1)
653 printf("** No valid partitions found **\n");
657 if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
658 printf("** Invalid partition type \"%.32s\""
659 " (expect \"" BOOT_PART_TYPE "\")\n",
665 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
675 int part_get_info_by_name(struct blk_desc *dev_desc, const char *name,
676 struct disk_partition *info)
678 struct part_driver *part_drv;
682 part_drv = part_driver_lookup_type(dev_desc);
686 if (!part_drv->get_info) {
687 log_debug("## Driver %s does not have the get_info() method\n",
692 for (i = 1; i < part_drv->max_entries; i++) {
693 ret = part_drv->get_info(dev_desc, i, info);
695 /* no more entries in table */
698 if (strcmp(name, (const char *)info->name) == 0) {
708 * Get partition info from device number and partition name.
710 * Parse a device number and partition name string in the form of
711 * "devicenum.hwpartnum#partition_name", for example "0.1#misc". devicenum and
712 * hwpartnum are both optional, defaulting to 0. If the partition is found,
713 * sets dev_desc and part_info accordingly with the information of the
714 * partition with the given partition_name.
716 * @param[in] dev_iface Device interface
717 * @param[in] dev_part_str Input string argument, like "0.1#misc"
718 * @param[out] dev_desc Place to store the device description pointer
719 * @param[out] part_info Place to store the partition information
720 * Return: 0 on success, or a negative on error
722 static int part_get_info_by_dev_and_name(const char *dev_iface,
723 const char *dev_part_str,
724 struct blk_desc **dev_desc,
725 struct disk_partition *part_info)
727 char *dup_str = NULL;
728 const char *dev_str, *part_str;
731 /* Separate device and partition name specification */
733 part_str = strchr(dev_part_str, '#');
738 dup_str = strdup(dev_part_str);
739 dup_str[part_str - dev_part_str] = 0;
746 ret = blk_get_device_by_str(dev_iface, dev_str, dev_desc);
750 ret = part_get_info_by_name(*dev_desc, part_str, part_info);
752 printf("Could not find \"%s\" partition\n", part_str);
759 int part_get_info_by_dev_and_name_or_num(const char *dev_iface,
760 const char *dev_part_str,
761 struct blk_desc **dev_desc,
762 struct disk_partition *part_info,
767 /* Split the part_name if passed as "$dev_num#part_name". */
768 ret = part_get_info_by_dev_and_name(dev_iface, dev_part_str,
769 dev_desc, part_info);
773 * Couldn't lookup by name, try looking up the partition description
776 ret = blk_get_device_part_str(dev_iface, dev_part_str,
777 dev_desc, part_info, allow_whole_dev);
779 printf("Couldn't find partition %s %s\n",
780 dev_iface, dev_part_str);
784 void part_set_generic_name(const struct blk_desc *dev_desc,
785 int part_num, char *name)
789 switch (dev_desc->uclass_id) {
808 sprintf(name, "%s%c%d", devtype, 'a' + dev_desc->devnum, part_num);
811 int part_get_bootable(struct blk_desc *desc)
813 struct disk_partition info;
816 for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
819 ret = part_get_info(desc, p, &info);
820 if (!ret && info.bootable)