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_lookup_type(struct blk_desc *dev_desc)
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 if (dev_desc->part_type == PART_TYPE_UNKNOWN) {
37 for (entry = drv; entry != drv + n_ents; entry++) {
40 ret = entry->test(dev_desc);
42 dev_desc->part_type = entry->part_type;
47 for (entry = drv; entry != drv + n_ents; entry++) {
48 if (dev_desc->part_type == entry->part_type)
57 #ifdef CONFIG_HAVE_BLOCK_DEVICE
58 static struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart)
60 struct blk_desc *dev_desc;
63 dev_desc = blk_get_devnum_by_typename(ifname, dev);
65 debug("%s: No device for iface '%s', dev %d\n", __func__,
69 ret = blk_dselect_hwpart(dev_desc, hwpart);
71 debug("%s: Failed to select h/w partition: err-%d\n", __func__,
79 struct blk_desc *blk_get_dev(const char *ifname, int dev)
81 return get_dev_hwpart(ifname, dev, 0);
84 struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart)
89 struct blk_desc *blk_get_dev(const char *ifname, int dev)
95 #ifdef CONFIG_HAVE_BLOCK_DEVICE
97 /* ------------------------------------------------------------------------- */
99 * reports device info to the user
103 typedef uint64_t lba512_t;
105 typedef lbaint_t lba512_t;
109 * Overflowless variant of (block_count * mul_by / 2**right_shift)
110 * when 2**right_shift > mul_by
112 static lba512_t lba512_muldiv(lba512_t block_count, lba512_t mul_by,
115 lba512_t bc_quot, bc_rem;
117 /* x * m / d == x / d * m + (x % d) * m / d */
118 bc_quot = block_count >> right_shift;
119 bc_rem = block_count - (bc_quot << right_shift);
120 return bc_quot * mul_by + ((bc_rem * mul_by) >> right_shift);
123 void dev_print (struct blk_desc *dev_desc)
125 lba512_t lba512; /* number of blocks if 512bytes block size */
127 if (dev_desc->type == DEV_TYPE_UNKNOWN) {
128 puts ("not available\n");
132 switch (dev_desc->if_type) {
134 printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n",
135 dev_desc->target,dev_desc->lun,
143 printf ("Model: %s Firm: %s Ser#: %s\n",
152 case IF_TYPE_PVBLOCK:
154 printf ("Vendor: %s Rev: %s Prod: %s\n",
160 printf("%s VirtIO Block Device\n", dev_desc->vendor);
163 puts("device type DOC\n");
165 case IF_TYPE_UNKNOWN:
166 puts("device type unknown\n");
169 printf("Unhandled device type: %i\n", dev_desc->if_type);
173 if (dev_desc->removable)
175 switch (dev_desc->type & 0x1F) {
176 case DEV_TYPE_HARDDISK:
182 case DEV_TYPE_OPDISK:
183 puts ("Optical Device");
189 printf ("# %02X #", dev_desc->type & 0x1F);
193 if (dev_desc->lba > 0L && dev_desc->blksz > 0L) {
194 ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
199 lba512 = (lba * (dev_desc->blksz/512));
200 /* round to 1 digit */
201 /* 2048 = (1024 * 1024) / 512 MB */
202 mb = lba512_muldiv(lba512, 10, 11);
205 mb_rem = mb - (10 * mb_quot);
209 gb_rem = gb - (10 * gb_quot);
212 printf (" Supports 48-bit addressing\n");
214 #if defined(CONFIG_SYS_64BIT_LBA)
215 printf (" Capacity: %lu.%lu MB = %lu.%lu GB (%llu x %lu)\n",
221 printf (" Capacity: %lu.%lu MB = %lu.%lu GB (%lu x %lu)\n",
228 puts (" Capacity: not available\n");
233 #ifdef CONFIG_HAVE_BLOCK_DEVICE
235 void part_init(struct blk_desc *dev_desc)
237 struct part_driver *drv =
238 ll_entry_start(struct part_driver, part_driver);
239 const int n_ents = ll_entry_count(struct part_driver, part_driver);
240 struct part_driver *entry;
242 blkcache_invalidate(dev_desc->if_type, dev_desc->devnum);
244 dev_desc->part_type = PART_TYPE_UNKNOWN;
245 for (entry = drv; entry != drv + n_ents; entry++) {
248 ret = entry->test(dev_desc);
249 debug("%s: try '%s': ret=%d\n", __func__, entry->name, ret);
251 dev_desc->part_type = entry->part_type;
257 static void print_part_header(const char *type, struct blk_desc *dev_desc)
259 #if CONFIG_IS_ENABLED(MAC_PARTITION) || \
260 CONFIG_IS_ENABLED(DOS_PARTITION) || \
261 CONFIG_IS_ENABLED(ISO_PARTITION) || \
262 CONFIG_IS_ENABLED(AMIGA_PARTITION) || \
263 CONFIG_IS_ENABLED(EFI_PARTITION)
264 puts ("\nPartition Map for ");
265 switch (dev_desc->if_type) {
293 case IF_TYPE_PVBLOCK:
299 case IF_TYPE_EFI_MEDIA:
306 printf (" device %d -- Partition Type: %s\n\n",
307 dev_desc->devnum, type);
308 #endif /* any CONFIG_..._PARTITION */
311 void part_print(struct blk_desc *dev_desc)
313 struct part_driver *drv;
315 drv = part_driver_lookup_type(dev_desc);
317 printf("## Unknown partition table type %x\n",
318 dev_desc->part_type);
322 PRINTF("## Testing for valid %s partition ##\n", drv->name);
323 print_part_header(drv->name, dev_desc);
325 drv->print(dev_desc);
328 #endif /* CONFIG_HAVE_BLOCK_DEVICE */
330 int part_get_info(struct blk_desc *dev_desc, int part,
331 struct disk_partition *info)
333 #ifdef CONFIG_HAVE_BLOCK_DEVICE
334 struct part_driver *drv;
336 #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
337 /* The common case is no UUID support */
340 #ifdef CONFIG_PARTITION_TYPE_GUID
341 info->type_guid[0] = 0;
344 drv = part_driver_lookup_type(dev_desc);
346 debug("## Unknown partition table type %x\n",
347 dev_desc->part_type);
348 return -EPROTONOSUPPORT;
350 if (!drv->get_info) {
351 PRINTF("## Driver %s does not have the get_info() method\n",
355 if (drv->get_info(dev_desc, part, info) == 0) {
356 PRINTF("## Valid %s partition found ##\n", drv->name);
359 #endif /* CONFIG_HAVE_BLOCK_DEVICE */
364 int part_get_info_whole_disk(struct blk_desc *dev_desc,
365 struct disk_partition *info)
368 info->size = dev_desc->lba;
369 info->blksz = dev_desc->blksz;
371 strcpy((char *)info->type, BOOT_PART_TYPE);
372 strcpy((char *)info->name, "Whole Disk");
373 #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
376 #ifdef CONFIG_PARTITION_TYPE_GUID
377 info->type_guid[0] = 0;
383 int blk_get_device_by_str(const char *ifname, const char *dev_hwpart_str,
384 struct blk_desc **dev_desc)
387 char *dup_str = NULL;
388 const char *dev_str, *hwpart_str;
391 hwpart_str = strchr(dev_hwpart_str, '.');
393 dup_str = strdup(dev_hwpart_str);
394 dup_str[hwpart_str - dev_hwpart_str] = 0;
398 dev_str = dev_hwpart_str;
402 dev = hextoul(dev_str, &ep);
404 printf("** Bad device specification %s %s **\n",
411 hwpart = hextoul(hwpart_str, &ep);
413 printf("** Bad HW partition specification %s %s **\n",
420 *dev_desc = get_dev_hwpart(ifname, dev, hwpart);
421 if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) {
422 debug("** Bad device %s %s **\n", ifname, dev_hwpart_str);
427 #ifdef CONFIG_HAVE_BLOCK_DEVICE
429 * Updates the partition table for the specified hw partition.
430 * Always should be done, otherwise hw partition 0 will return stale
431 * data after displaying a non-zero hw partition.
433 part_init(*dev_desc);
441 #define PART_UNSPECIFIED -2
443 int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
444 struct blk_desc **dev_desc,
445 struct disk_partition *info, int allow_whole_dev)
448 const char *part_str;
449 char *dup_str = NULL;
455 struct disk_partition 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 #if CONFIG_IS_ENABLED(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, rather than 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 #if CONFIG_IS_ENABLED(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 = env_get("bootdevice");
508 /* If still no dev_part_str, it's an error */
510 printf("** No device specified **\n");
515 /* Separate device and partition ID specification */
516 part_str = strchr(dev_part_str, ':');
518 dup_str = strdup(dev_part_str);
519 dup_str[part_str - dev_part_str] = 0;
523 dev_str = dev_part_str;
526 /* Look up the device */
527 dev = blk_get_device_by_str(ifname, dev_str, dev_desc);
533 /* Convert partition ID string to number */
534 if (!part_str || !*part_str) {
535 part = PART_UNSPECIFIED;
536 } else if (!strcmp(part_str, "auto")) {
539 /* Something specified -> use exactly that */
540 part = (int)hextoul(part_str, &ep);
542 * Less than whole string converted,
543 * or request for whole device, but caller requires partition.
545 if (*ep || (part == 0 && !allow_whole_dev)) {
546 printf("** Bad partition specification %s %s **\n",
547 ifname, dev_part_str);
554 * No partition table on device,
555 * or user requested partition 0 (entire device).
557 if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) ||
559 if (!(*dev_desc)->lba) {
560 printf("** Bad device size - %s %s **\n", ifname,
567 * If user specified a partition ID other than 0,
568 * or the calling command only accepts partitions,
571 if ((part > 0) || (!allow_whole_dev)) {
572 printf("** No partition table - %s %s **\n", ifname,
574 ret = -EPROTONOSUPPORT;
578 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
580 part_get_info_whole_disk(*dev_desc, info);
587 * Now there's known to be a partition table,
588 * not specifying a partition means to pick partition 1.
590 if (part == PART_UNSPECIFIED)
594 * If user didn't specify a partition number, or did specify something
595 * other than "auto", use that partition number directly.
597 if (part != PART_AUTO) {
598 ret = part_get_info(*dev_desc, part, info);
600 printf("** Invalid partition %d **\n", part);
605 * Find the first bootable partition.
606 * If none are bootable, fall back to the first valid partition.
609 for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
610 ret = part_get_info(*dev_desc, p, info);
615 * First valid partition, or new better partition?
616 * If so, save partition ID.
618 if (!part || info->bootable)
621 /* Best possible partition? Stop searching. */
626 * We now need to search further for best possible.
627 * If we what we just queried was the best so far,
628 * save the info since we over-write it next loop.
633 /* If we found any acceptable partition */
636 * If we searched all possible partition IDs,
637 * return the first valid partition we found.
639 if (p == MAX_SEARCH_PARTITIONS + 1)
642 printf("** No valid partitions found **\n");
646 if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
647 printf("** Invalid partition type \"%.32s\""
648 " (expect \"" BOOT_PART_TYPE "\")\n",
654 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
664 int part_get_info_by_name_type(struct blk_desc *dev_desc, const char *name,
665 struct disk_partition *info, int part_type)
667 struct part_driver *part_drv;
671 part_drv = part_driver_lookup_type(dev_desc);
675 if (!part_drv->get_info) {
676 log_debug("## Driver %s does not have the get_info() method\n",
681 for (i = 1; i < part_drv->max_entries; i++) {
682 ret = part_drv->get_info(dev_desc, i, info);
684 /* no more entries in table */
687 if (strcmp(name, (const char *)info->name) == 0) {
696 int part_get_info_by_name(struct blk_desc *dev_desc, const char *name,
697 struct disk_partition *info)
699 return part_get_info_by_name_type(dev_desc, name, info, PART_TYPE_ALL);
703 * Get partition info from device number and partition name.
705 * Parse a device number and partition name string in the form of
706 * "devicenum.hwpartnum#partition_name", for example "0.1#misc". devicenum and
707 * hwpartnum are both optional, defaulting to 0. If the partition is found,
708 * sets dev_desc and part_info accordingly with the information of the
709 * partition with the given partition_name.
711 * @param[in] dev_iface Device interface
712 * @param[in] dev_part_str Input string argument, like "0.1#misc"
713 * @param[out] dev_desc Place to store the device description pointer
714 * @param[out] part_info Place to store the partition information
715 * @return 0 on success, or a negative on error
717 static int part_get_info_by_dev_and_name(const char *dev_iface,
718 const char *dev_part_str,
719 struct blk_desc **dev_desc,
720 struct disk_partition *part_info)
722 char *dup_str = NULL;
723 const char *dev_str, *part_str;
726 /* Separate device and partition name specification */
728 part_str = strchr(dev_part_str, '#');
733 dup_str = strdup(dev_part_str);
734 dup_str[part_str - dev_part_str] = 0;
741 ret = blk_get_device_by_str(dev_iface, dev_str, dev_desc);
745 ret = part_get_info_by_name(*dev_desc, part_str, part_info);
747 printf("Could not find \"%s\" partition\n", part_str);
754 int part_get_info_by_dev_and_name_or_num(const char *dev_iface,
755 const char *dev_part_str,
756 struct blk_desc **dev_desc,
757 struct disk_partition *part_info,
762 /* Split the part_name if passed as "$dev_num#part_name". */
763 ret = part_get_info_by_dev_and_name(dev_iface, dev_part_str,
764 dev_desc, part_info);
768 * Couldn't lookup by name, try looking up the partition description
771 ret = blk_get_device_part_str(dev_iface, dev_part_str,
772 dev_desc, part_info, allow_whole_dev);
774 printf("Couldn't find partition %s %s\n",
775 dev_iface, dev_part_str);
779 void part_set_generic_name(const struct blk_desc *dev_desc,
780 int part_num, char *name)
784 switch (dev_desc->if_type) {
808 sprintf(name, "%s%c%d", devtype, 'a' + dev_desc->devnum, part_num);