1 // SPDX-License-Identifier: GPL-2.0+
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
14 #include <ubifs_uboot.h>
19 #define PRINTF(fmt,args...) printf (fmt ,##args)
21 #define PRINTF(fmt,args...)
24 /* Check all partition types */
25 #define PART_TYPE_ALL -1
27 static struct part_driver *part_driver_lookup_type(struct blk_desc *dev_desc)
29 struct part_driver *drv =
30 ll_entry_start(struct part_driver, part_driver);
31 const int n_ents = ll_entry_count(struct part_driver, part_driver);
32 struct part_driver *entry;
34 if (dev_desc->part_type == PART_TYPE_UNKNOWN) {
35 for (entry = drv; entry != drv + n_ents; entry++) {
38 ret = entry->test(dev_desc);
40 dev_desc->part_type = entry->part_type;
45 for (entry = drv; entry != drv + n_ents; entry++) {
46 if (dev_desc->part_type == entry->part_type)
55 #ifdef CONFIG_HAVE_BLOCK_DEVICE
56 static struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart)
58 struct blk_desc *dev_desc;
61 dev_desc = blk_get_devnum_by_typename(ifname, dev);
63 debug("%s: No device for iface '%s', dev %d\n", __func__,
67 ret = blk_dselect_hwpart(dev_desc, hwpart);
69 debug("%s: Failed to select h/w partition: err-%d\n", __func__,
77 struct blk_desc *blk_get_dev(const char *ifname, int dev)
79 return get_dev_hwpart(ifname, dev, 0);
82 struct blk_desc *get_dev_hwpart(const char *ifname, int dev, int hwpart)
87 struct blk_desc *blk_get_dev(const char *ifname, int dev)
93 #ifdef CONFIG_HAVE_BLOCK_DEVICE
95 /* ------------------------------------------------------------------------- */
97 * reports device info to the user
101 typedef uint64_t lba512_t;
103 typedef lbaint_t lba512_t;
107 * Overflowless variant of (block_count * mul_by / 2**div_by)
108 * when div_by > mul_by
110 static lba512_t lba512_muldiv(lba512_t block_count, lba512_t mul_by, int div_by)
112 lba512_t bc_quot, bc_rem;
114 /* x * m / d == x / d * m + (x % d) * m / d */
115 bc_quot = block_count >> div_by;
116 bc_rem = block_count - (bc_quot << div_by);
117 return bc_quot * mul_by + ((bc_rem * mul_by) >> div_by);
120 void dev_print (struct blk_desc *dev_desc)
122 lba512_t lba512; /* number of blocks if 512bytes block size */
124 if (dev_desc->type == DEV_TYPE_UNKNOWN) {
125 puts ("not available\n");
129 switch (dev_desc->if_type) {
131 printf ("(%d:%d) Vendor: %s Prod.: %s Rev: %s\n",
132 dev_desc->target,dev_desc->lun,
140 printf ("Model: %s Firm: %s Ser#: %s\n",
149 printf ("Vendor: %s Rev: %s Prod: %s\n",
155 printf("%s VirtIO Block Device\n", dev_desc->vendor);
158 puts("device type DOC\n");
160 case IF_TYPE_UNKNOWN:
161 puts("device type unknown\n");
164 printf("Unhandled device type: %i\n", dev_desc->if_type);
168 if (dev_desc->removable)
170 switch (dev_desc->type & 0x1F) {
171 case DEV_TYPE_HARDDISK:
177 case DEV_TYPE_OPDISK:
178 puts ("Optical Device");
184 printf ("# %02X #", dev_desc->type & 0x1F);
188 if (dev_desc->lba > 0L && dev_desc->blksz > 0L) {
189 ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem;
194 lba512 = (lba * (dev_desc->blksz/512));
195 /* round to 1 digit */
196 /* 2048 = (1024 * 1024) / 512 MB */
197 mb = lba512_muldiv(lba512, 10, 11);
200 mb_rem = mb - (10 * mb_quot);
204 gb_rem = gb - (10 * gb_quot);
207 printf (" Supports 48-bit addressing\n");
209 #if defined(CONFIG_SYS_64BIT_LBA)
210 printf (" Capacity: %lu.%lu MB = %lu.%lu GB (%llu x %lu)\n",
216 printf (" Capacity: %lu.%lu MB = %lu.%lu GB (%lu x %lu)\n",
223 puts (" Capacity: not available\n");
228 #ifdef CONFIG_HAVE_BLOCK_DEVICE
230 void part_init(struct blk_desc *dev_desc)
232 struct part_driver *drv =
233 ll_entry_start(struct part_driver, part_driver);
234 const int n_ents = ll_entry_count(struct part_driver, part_driver);
235 struct part_driver *entry;
237 blkcache_invalidate(dev_desc->if_type, dev_desc->devnum);
239 dev_desc->part_type = PART_TYPE_UNKNOWN;
240 for (entry = drv; entry != drv + n_ents; entry++) {
243 ret = entry->test(dev_desc);
244 debug("%s: try '%s': ret=%d\n", __func__, entry->name, ret);
246 dev_desc->part_type = entry->part_type;
252 static void print_part_header(const char *type, struct blk_desc *dev_desc)
254 #if CONFIG_IS_ENABLED(MAC_PARTITION) || \
255 CONFIG_IS_ENABLED(DOS_PARTITION) || \
256 CONFIG_IS_ENABLED(ISO_PARTITION) || \
257 CONFIG_IS_ENABLED(AMIGA_PARTITION) || \
258 CONFIG_IS_ENABLED(EFI_PARTITION)
259 puts ("\nPartition Map for ");
260 switch (dev_desc->if_type) {
295 printf (" device %d -- Partition Type: %s\n\n",
296 dev_desc->devnum, type);
297 #endif /* any CONFIG_..._PARTITION */
300 void part_print(struct blk_desc *dev_desc)
302 struct part_driver *drv;
304 drv = part_driver_lookup_type(dev_desc);
306 printf("## Unknown partition table type %x\n",
307 dev_desc->part_type);
311 PRINTF("## Testing for valid %s partition ##\n", drv->name);
312 print_part_header(drv->name, dev_desc);
314 drv->print(dev_desc);
317 #endif /* CONFIG_HAVE_BLOCK_DEVICE */
319 int part_get_info(struct blk_desc *dev_desc, int part,
320 disk_partition_t *info)
322 #ifdef CONFIG_HAVE_BLOCK_DEVICE
323 struct part_driver *drv;
325 #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
326 /* The common case is no UUID support */
329 #ifdef CONFIG_PARTITION_TYPE_GUID
330 info->type_guid[0] = 0;
333 drv = part_driver_lookup_type(dev_desc);
335 debug("## Unknown partition table type %x\n",
336 dev_desc->part_type);
337 return -EPROTONOSUPPORT;
339 if (!drv->get_info) {
340 PRINTF("## Driver %s does not have the get_info() method\n",
344 if (drv->get_info(dev_desc, part, info) == 0) {
345 PRINTF("## Valid %s partition found ##\n", drv->name);
348 #endif /* CONFIG_HAVE_BLOCK_DEVICE */
353 int part_get_info_whole_disk(struct blk_desc *dev_desc, disk_partition_t *info)
356 info->size = dev_desc->lba;
357 info->blksz = dev_desc->blksz;
359 strcpy((char *)info->type, BOOT_PART_TYPE);
360 strcpy((char *)info->name, "Whole Disk");
361 #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
364 #ifdef CONFIG_PARTITION_TYPE_GUID
365 info->type_guid[0] = 0;
371 int blk_get_device_by_str(const char *ifname, const char *dev_hwpart_str,
372 struct blk_desc **dev_desc)
375 char *dup_str = NULL;
376 const char *dev_str, *hwpart_str;
379 hwpart_str = strchr(dev_hwpart_str, '.');
381 dup_str = strdup(dev_hwpart_str);
382 dup_str[hwpart_str - dev_hwpart_str] = 0;
386 dev_str = dev_hwpart_str;
390 dev = simple_strtoul(dev_str, &ep, 16);
392 printf("** Bad device specification %s %s **\n",
399 hwpart = simple_strtoul(hwpart_str, &ep, 16);
401 printf("** Bad HW partition specification %s %s **\n",
408 *dev_desc = get_dev_hwpart(ifname, dev, hwpart);
409 if (!(*dev_desc) || ((*dev_desc)->type == DEV_TYPE_UNKNOWN)) {
410 debug("** Bad device %s %s **\n", ifname, dev_hwpart_str);
415 #ifdef CONFIG_HAVE_BLOCK_DEVICE
417 * Updates the partition table for the specified hw partition.
418 * Always should be done, otherwise hw partition 0 will return stale
419 * data after displaying a non-zero hw partition.
421 part_init(*dev_desc);
429 #define PART_UNSPECIFIED -2
431 int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
432 struct blk_desc **dev_desc,
433 disk_partition_t *info, int allow_whole_dev)
436 const char *part_str;
437 char *dup_str = NULL;
443 disk_partition_t tmpinfo;
445 #ifdef CONFIG_SANDBOX
447 * Special-case a pseudo block device "hostfs", to allow access to the
448 * host's own filesystem.
450 if (0 == strcmp(ifname, "hostfs")) {
456 strcpy((char *)info->type, BOOT_PART_TYPE);
457 strcpy((char *)info->name, "Sandbox host");
458 #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
461 #ifdef CONFIG_PARTITION_TYPE_GUID
462 info->type_guid[0] = 0;
469 #ifdef CONFIG_CMD_UBIFS
471 * Special-case ubi, ubi goes through a mtd, rather than through
472 * a regular block device.
474 if (0 == strcmp(ifname, "ubi")) {
475 if (!ubifs_is_mounted()) {
476 printf("UBIFS not mounted, use ubifsmount to mount volume first!\n");
481 memset(info, 0, sizeof(*info));
482 strcpy((char *)info->type, BOOT_PART_TYPE);
483 strcpy((char *)info->name, "UBI");
484 #if CONFIG_IS_ENABLED(PARTITION_UUIDS)
491 /* If no dev_part_str, use bootdevice environment variable */
492 if (!dev_part_str || !strlen(dev_part_str) ||
493 !strcmp(dev_part_str, "-"))
494 dev_part_str = env_get("bootdevice");
496 /* If still no dev_part_str, it's an error */
498 printf("** No device specified **\n");
502 /* Separate device and partition ID specification */
503 part_str = strchr(dev_part_str, ':');
505 dup_str = strdup(dev_part_str);
506 dup_str[part_str - dev_part_str] = 0;
510 dev_str = dev_part_str;
513 /* Look up the device */
514 dev = blk_get_device_by_str(ifname, dev_str, dev_desc);
518 /* Convert partition ID string to number */
519 if (!part_str || !*part_str) {
520 part = PART_UNSPECIFIED;
521 } else if (!strcmp(part_str, "auto")) {
524 /* Something specified -> use exactly that */
525 part = (int)simple_strtoul(part_str, &ep, 16);
527 * Less than whole string converted,
528 * or request for whole device, but caller requires partition.
530 if (*ep || (part == 0 && !allow_whole_dev)) {
531 printf("** Bad partition specification %s %s **\n",
532 ifname, dev_part_str);
538 * No partition table on device,
539 * or user requested partition 0 (entire device).
541 if (((*dev_desc)->part_type == PART_TYPE_UNKNOWN) ||
543 if (!(*dev_desc)->lba) {
544 printf("** Bad device size - %s %s **\n", ifname,
550 * If user specified a partition ID other than 0,
551 * or the calling command only accepts partitions,
554 if ((part > 0) || (!allow_whole_dev)) {
555 printf("** No partition table - %s %s **\n", ifname,
560 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
562 part_get_info_whole_disk(*dev_desc, info);
569 * Now there's known to be a partition table,
570 * not specifying a partition means to pick partition 1.
572 if (part == PART_UNSPECIFIED)
576 * If user didn't specify a partition number, or did specify something
577 * other than "auto", use that partition number directly.
579 if (part != PART_AUTO) {
580 ret = part_get_info(*dev_desc, part, info);
582 printf("** Invalid partition %d **\n", part);
587 * Find the first bootable partition.
588 * If none are bootable, fall back to the first valid partition.
591 for (p = 1; p <= MAX_SEARCH_PARTITIONS; p++) {
592 ret = part_get_info(*dev_desc, p, info);
597 * First valid partition, or new better partition?
598 * If so, save partition ID.
600 if (!part || info->bootable)
603 /* Best possible partition? Stop searching. */
608 * We now need to search further for best possible.
609 * If we what we just queried was the best so far,
610 * save the info since we over-write it next loop.
615 /* If we found any acceptable partition */
618 * If we searched all possible partition IDs,
619 * return the first valid partition we found.
621 if (p == MAX_SEARCH_PARTITIONS + 1)
624 printf("** No valid partitions found **\n");
629 if (strncmp((char *)info->type, BOOT_PART_TYPE, sizeof(info->type)) != 0) {
630 printf("** Invalid partition type \"%.32s\""
631 " (expect \"" BOOT_PART_TYPE "\")\n",
637 (*dev_desc)->log2blksz = LOG2((*dev_desc)->blksz);
647 int part_get_info_by_name_type(struct blk_desc *dev_desc, const char *name,
648 disk_partition_t *info, int part_type)
650 struct part_driver *part_drv;
654 part_drv = part_driver_lookup_type(dev_desc);
657 for (i = 1; i < part_drv->max_entries; i++) {
658 ret = part_drv->get_info(dev_desc, i, info);
660 /* no more entries in table */
663 if (strcmp(name, (const char *)info->name) == 0) {
672 int part_get_info_by_name(struct blk_desc *dev_desc, const char *name,
673 disk_partition_t *info)
675 return part_get_info_by_name_type(dev_desc, name, info, PART_TYPE_ALL);
679 * Get partition info from device number and partition name.
681 * Parse a device number and partition name string in the form of
682 * "device_num#partition_name", for example "0#misc". If the partition
683 * is found, sets dev_desc and part_info accordingly with the information
684 * of the partition with the given partition_name.
686 * @param[in] dev_iface Device interface
687 * @param[in] dev_part_str Input string argument, like "0#misc"
688 * @param[out] dev_desc Place to store the device description pointer
689 * @param[out] part_info Place to store the partition information
690 * @return 0 on success, or a negative on error
692 static int part_get_info_by_dev_and_name(const char *dev_iface,
693 const char *dev_part_str,
694 struct blk_desc **dev_desc,
695 disk_partition_t *part_info)
698 const char *part_str;
701 part_str = strchr(dev_part_str, '#');
702 if (!part_str || part_str == dev_part_str)
705 dev_num = simple_strtoul(dev_part_str, &ep, 16);
706 if (ep != part_str) {
707 /* Not all the first part before the # was parsed. */
712 *dev_desc = blk_get_dev(dev_iface, dev_num);
714 printf("Could not find %s %d\n", dev_iface, dev_num);
717 if (part_get_info_by_name(*dev_desc, part_str, part_info) < 0) {
718 printf("Could not find \"%s\" partition\n", part_str);
724 int part_get_info_by_dev_and_name_or_num(const char *dev_iface,
725 const char *dev_part_str,
726 struct blk_desc **dev_desc,
727 disk_partition_t *part_info)
729 /* Split the part_name if passed as "$dev_num#part_name". */
730 if (!part_get_info_by_dev_and_name(dev_iface, dev_part_str,
731 dev_desc, part_info))
734 * Couldn't lookup by name, try looking up the partition description
737 if (blk_get_device_part_str(dev_iface, dev_part_str,
738 dev_desc, part_info, 1) < 0) {
739 printf("Couldn't find partition %s %s\n",
740 dev_iface, dev_part_str);
746 void part_set_generic_name(const struct blk_desc *dev_desc,
747 int part_num, char *name)
751 switch (dev_desc->if_type) {
775 sprintf(name, "%s%c%d", devtype, 'a' + dev_desc->devnum, part_num);