1 /*
2 * Unsorted Block Image commands
3 *
4 * Copyright (C) 2008 Samsung Electronics
5 * Kyungmin Park <kyungmin.park@samsung.com>
6 *
7 * Copyright 2008-2009 Stefan Roese <sr@denx.de>, DENX Software Engineering
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <command.h>
15 #include <env.h>
16 #include <exports.h>
17 #include <led.h>
18 #include <malloc.h>
19 #include <memalign.h>
20 #include <mtd.h>
21 #include <nand.h>
22 #include <onenand_uboot.h>
23 #include <dm/devres.h>
24 #include <linux/mtd/mtd.h>
25 #include <linux/mtd/partitions.h>
26 #include <linux/err.h>
27 #include <ubi_uboot.h>
28 #include <linux/errno.h>
29 #include <jffs2/load_kernel.h>
30 #include <linux/log2.h>
31
32 #undef ubi_msg
33 #define ubi_msg(fmt, ...) printf("UBI: " fmt "\n", ##__VA_ARGS__)
34
35 /* Private own data */
36 static struct ubi_device *ubi;
37
38 #ifdef CONFIG_CMD_UBIFS
39 #include <ubifs_uboot.h>
40 #endif
41
display_volume_info(struct ubi_device * ubi)42 static void display_volume_info(struct ubi_device *ubi)
43 {
44 int i;
45
46 for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
47 if (!ubi->volumes[i])
48 continue; /* Empty record */
49 ubi_dump_vol_info(ubi->volumes[i]);
50 }
51 }
52
display_ubi_info(struct ubi_device * ubi)53 static void display_ubi_info(struct ubi_device *ubi)
54 {
55 ubi_msg("MTD device name: \"%s\"", ubi->mtd->name);
56 ubi_msg("MTD device size: %llu MiB", ubi->flash_size >> 20);
57 ubi_msg("physical eraseblock size: %d bytes (%d KiB)",
58 ubi->peb_size, ubi->peb_size >> 10);
59 ubi_msg("logical eraseblock size: %d bytes", ubi->leb_size);
60 ubi_msg("number of good PEBs: %d", ubi->good_peb_count);
61 ubi_msg("number of bad PEBs: %d", ubi->bad_peb_count);
62 ubi_msg("smallest flash I/O unit: %d", ubi->min_io_size);
63 ubi_msg("VID header offset: %d (aligned %d)",
64 ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
65 ubi_msg("data offset: %d", ubi->leb_start);
66 ubi_msg("max. allowed volumes: %d", ubi->vtbl_slots);
67 ubi_msg("wear-leveling threshold: %d", CONFIG_MTD_UBI_WL_THRESHOLD);
68 ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT);
69 ubi_msg("number of user volumes: %d",
70 ubi->vol_count - UBI_INT_VOL_COUNT);
71 ubi_msg("available PEBs: %d", ubi->avail_pebs);
72 ubi_msg("total number of reserved PEBs: %d", ubi->rsvd_pebs);
73 ubi_msg("number of PEBs reserved for bad PEB handling: %d",
74 ubi->beb_rsvd_pebs);
75 ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec);
76 }
77
ubi_info(int layout)78 static int ubi_info(int layout)
79 {
80 if (layout)
81 display_volume_info(ubi);
82 else
83 display_ubi_info(ubi);
84
85 return 0;
86 }
87
ubi_list(const char * var,int numeric)88 static int ubi_list(const char *var, int numeric)
89 {
90 size_t namelen, len, size;
91 char *str, *str2;
92 int i;
93
94 if (!var) {
95 for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
96 if (!ubi->volumes[i])
97 continue;
98 if (ubi->volumes[i]->vol_id >= UBI_INTERNAL_VOL_START)
99 continue;
100 printf("%d: %s\n",
101 ubi->volumes[i]->vol_id,
102 ubi->volumes[i]->name);
103 }
104 return 0;
105 }
106
107 len = 0;
108 size = 16;
109 str = malloc(size);
110 if (!str)
111 return 1;
112
113 for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
114 if (!ubi->volumes[i])
115 continue;
116 if (ubi->volumes[i]->vol_id >= UBI_INTERNAL_VOL_START)
117 continue;
118
119 if (numeric)
120 namelen = 10; /* strlen(stringify(INT_MAX)) */
121 else
122 namelen = strlen(ubi->volumes[i]->name);
123
124 if (len + namelen + 1 > size) {
125 size = roundup_pow_of_two(len + namelen + 1) * 2;
126 str2 = realloc(str, size);
127 if (!str2) {
128 free(str);
129 return 1;
130 }
131 str = str2;
132 }
133
134 if (len)
135 str[len++] = ' ';
136
137 if (numeric) {
138 len += sprintf(str + len, "%d", ubi->volumes[i]->vol_id) + 1;
139 } else {
140 memcpy(str + len, ubi->volumes[i]->name, namelen);
141 len += namelen;
142 str[len] = 0;
143 }
144 }
145
146 env_set(var, str);
147 free(str);
148
149 return 0;
150 }
151
ubi_check_volumename(const struct ubi_volume * vol,char * name)152 static int ubi_check_volumename(const struct ubi_volume *vol, char *name)
153 {
154 return strcmp(vol->name, name);
155 }
156
ubi_check(char * name)157 static int ubi_check(char *name)
158 {
159 int i;
160
161 for (i = 0; i < (ubi->vtbl_slots + 1); i++) {
162 if (!ubi->volumes[i])
163 continue; /* Empty record */
164
165 if (!ubi_check_volumename(ubi->volumes[i], name))
166 return 0;
167 }
168
169 return 1;
170 }
171
verify_mkvol_req(const struct ubi_device * ubi,const struct ubi_mkvol_req * req)172 static int verify_mkvol_req(const struct ubi_device *ubi,
173 const struct ubi_mkvol_req *req)
174 {
175 int n, err = EINVAL;
176
177 if (req->bytes < 0 || req->alignment < 0 || req->vol_type < 0 ||
178 req->name_len < 0)
179 goto bad;
180
181 if ((req->vol_id < 0 || req->vol_id >= ubi->vtbl_slots) &&
182 req->vol_id != UBI_VOL_NUM_AUTO)
183 goto bad;
184
185 if (req->alignment == 0)
186 goto bad;
187
188 if (req->bytes == 0) {
189 printf("No space left in UBI device!\n");
190 err = ENOMEM;
191 goto bad;
192 }
193
194 if (req->vol_type != UBI_DYNAMIC_VOLUME &&
195 req->vol_type != UBI_STATIC_VOLUME)
196 goto bad;
197
198 if (req->alignment > ubi->leb_size)
199 goto bad;
200
201 n = req->alignment % ubi->min_io_size;
202 if (req->alignment != 1 && n)
203 goto bad;
204
205 if (req->name_len > UBI_VOL_NAME_MAX) {
206 printf("Name too long!\n");
207 err = ENAMETOOLONG;
208 goto bad;
209 }
210
211 return 0;
212 bad:
213 return err;
214 }
215
ubi_create_vol(char * volume,int64_t size,int dynamic,int vol_id,bool skipcheck)216 static int ubi_create_vol(char *volume, int64_t size, int dynamic, int vol_id,
217 bool skipcheck)
218 {
219 struct ubi_mkvol_req req;
220 int err;
221
222 if (dynamic)
223 req.vol_type = UBI_DYNAMIC_VOLUME;
224 else
225 req.vol_type = UBI_STATIC_VOLUME;
226
227 req.vol_id = vol_id;
228 req.alignment = 1;
229 req.bytes = size;
230
231 strcpy(req.name, volume);
232 req.name_len = strlen(volume);
233 req.name[req.name_len] = '\0';
234 req.flags = 0;
235 if (skipcheck)
236 req.flags |= UBI_VOL_SKIP_CRC_CHECK_FLG;
237
238 /* It's duplicated at drivers/mtd/ubi/cdev.c */
239 err = verify_mkvol_req(ubi, &req);
240 if (err) {
241 printf("verify_mkvol_req failed %d\n", err);
242 return err;
243 }
244 printf("Creating %s volume %s of size %lld\n",
245 dynamic ? "dynamic" : "static", volume, size);
246 /* Call real ubi create volume */
247 return ubi_create_volume(ubi, &req);
248 }
249
ubi_find_volume(char * volume)250 static struct ubi_volume *ubi_find_volume(char *volume)
251 {
252 struct ubi_volume *vol;
253 int i;
254
255 for (i = 0; i < ubi->vtbl_slots; i++) {
256 vol = ubi->volumes[i];
257 if (vol && !strcmp(vol->name, volume))
258 return vol;
259 }
260
261 printf("Volume %s not found!\n", volume);
262 return NULL;
263 }
264
ubi_remove_vol(char * volume)265 static int ubi_remove_vol(char *volume)
266 {
267 int err, reserved_pebs, i;
268 struct ubi_volume *vol;
269
270 vol = ubi_find_volume(volume);
271 if (vol == NULL)
272 return ENODEV;
273
274 printf("Remove UBI volume %s (id %d)\n", vol->name, vol->vol_id);
275
276 if (ubi->ro_mode) {
277 printf("It's read-only mode\n");
278 err = EROFS;
279 goto out_err;
280 }
281
282 err = ubi_change_vtbl_record(ubi, vol->vol_id, NULL);
283 if (err) {
284 printf("Error changing Vol tabel record err=%x\n", err);
285 goto out_err;
286 }
287 reserved_pebs = vol->reserved_pebs;
288 for (i = 0; i < vol->reserved_pebs; i++) {
289 err = ubi_eba_unmap_leb(ubi, vol, i);
290 if (err)
291 goto out_err;
292 }
293
294 kfree(vol->eba_tbl);
295 ubi->volumes[vol->vol_id]->eba_tbl = NULL;
296 ubi->volumes[vol->vol_id] = NULL;
297
298 ubi->rsvd_pebs -= reserved_pebs;
299 ubi->avail_pebs += reserved_pebs;
300 i = ubi->beb_rsvd_level - ubi->beb_rsvd_pebs;
301 if (i > 0) {
302 i = ubi->avail_pebs >= i ? i : ubi->avail_pebs;
303 ubi->avail_pebs -= i;
304 ubi->rsvd_pebs += i;
305 ubi->beb_rsvd_pebs += i;
306 if (i > 0)
307 ubi_msg("reserve more %d PEBs", i);
308 }
309 ubi->vol_count -= 1;
310
311 return 0;
312 out_err:
313 ubi_err(ubi, "cannot remove volume %s, error %d", volume, err);
314 if (err < 0)
315 err = -err;
316 return err;
317 }
318
ubi_rename_vol(char * oldname,char * newname)319 static int ubi_rename_vol(char *oldname, char *newname)
320 {
321 struct ubi_volume *vol;
322 struct ubi_rename_entry rename;
323 struct ubi_volume_desc desc;
324 struct list_head list;
325
326 vol = ubi_find_volume(oldname);
327 if (!vol) {
328 printf("%s: volume %s doesn't exist\n", __func__, oldname);
329 return ENODEV;
330 }
331
332 if (!ubi_check(newname)) {
333 printf("%s: volume %s already exist\n", __func__, newname);
334 return EINVAL;
335 }
336
337 printf("Rename UBI volume %s to %s\n", oldname, newname);
338
339 if (ubi->ro_mode) {
340 printf("%s: ubi device is in read-only mode\n", __func__);
341 return EROFS;
342 }
343
344 rename.new_name_len = strlen(newname);
345 strcpy(rename.new_name, newname);
346 rename.remove = 0;
347 desc.vol = vol;
348 desc.mode = 0;
349 rename.desc = &desc;
350 INIT_LIST_HEAD(&rename.list);
351 INIT_LIST_HEAD(&list);
352 list_add(&rename.list, &list);
353
354 return ubi_rename_volumes(ubi, &list);
355 }
356
ubi_volume_continue_write(char * volume,void * buf,size_t size)357 static int ubi_volume_continue_write(char *volume, void *buf, size_t size)
358 {
359 int err;
360 struct ubi_volume *vol;
361
362 vol = ubi_find_volume(volume);
363 if (vol == NULL)
364 return ENODEV;
365
366 if (!vol->updating) {
367 printf("UBI volume update was not initiated\n");
368 return EINVAL;
369 }
370
371 err = ubi_more_update_data(ubi, vol, buf, size);
372 if (err < 0) {
373 printf("Couldnt or partially wrote data\n");
374 return -err;
375 }
376
377 if (err) {
378 size = err;
379
380 err = ubi_check_volume(ubi, vol->vol_id);
381 if (err < 0)
382 return -err;
383
384 if (err) {
385 ubi_warn(ubi, "volume %d on UBI device %d is corrupt",
386 vol->vol_id, ubi->ubi_num);
387 vol->corrupted = 1;
388 }
389
390 vol->checked = 1;
391 ubi_gluebi_updated(vol);
392 }
393
394 return 0;
395 }
396
ubi_volume_begin_write(char * volume,void * buf,size_t size,size_t full_size)397 int ubi_volume_begin_write(char *volume, void *buf, size_t size,
398 size_t full_size)
399 {
400 int err;
401 int rsvd_bytes;
402 struct ubi_volume *vol;
403
404 vol = ubi_find_volume(volume);
405 if (vol == NULL)
406 return ENODEV;
407
408 rsvd_bytes = vol->reserved_pebs * (ubi->leb_size - vol->data_pad);
409 if (size > rsvd_bytes) {
410 printf("size > volume size! Aborting!\n");
411 return EINVAL;
412 }
413
414 err = ubi_start_update(ubi, vol, full_size);
415 if (err < 0) {
416 printf("Cannot start volume update\n");
417 return -err;
418 }
419
420 /* The volume is just wiped out */
421 if (!full_size)
422 return 0;
423
424 return ubi_volume_continue_write(volume, buf, size);
425 }
426
ubi_volume_offset_write(char * volume,void * buf,loff_t offset,size_t size)427 static int ubi_volume_offset_write(char *volume, void *buf, loff_t offset,
428 size_t size)
429 {
430 int len, tbuf_size, ret;
431 u64 lnum;
432 struct ubi_volume *vol;
433 loff_t off = offset;
434 void *tbuf;
435
436 vol = ubi_find_volume(volume);
437 if (!vol)
438 return -ENODEV;
439
440 if (size > vol->reserved_pebs * (ubi->leb_size - vol->data_pad))
441 return -EINVAL;
442
443 tbuf_size = vol->usable_leb_size;
444 tbuf = malloc_cache_aligned(tbuf_size);
445 if (!tbuf)
446 return -ENOMEM;
447
448 lnum = off;
449 off = do_div(lnum, vol->usable_leb_size);
450
451 do {
452 struct ubi_volume_desc desc = {
453 .vol = vol,
454 .mode = UBI_READWRITE,
455 };
456
457 len = size > tbuf_size ? tbuf_size : size;
458 if (off + len >= vol->usable_leb_size)
459 len = vol->usable_leb_size - off;
460
461 ret = ubi_read(&desc, (int)lnum, tbuf, 0, tbuf_size);
462 if (ret) {
463 pr_err("Failed to read leb %lld (%d)\n", lnum, ret);
464 goto exit;
465 }
466
467 memcpy(tbuf + off, buf, len);
468
469 ret = ubi_leb_change(&desc, (int)lnum, tbuf, tbuf_size);
470 if (ret) {
471 pr_err("Failed to write leb %lld (%d)\n", lnum, ret);
472 goto exit;
473 }
474
475 off += len;
476 if (off >= vol->usable_leb_size) {
477 lnum++;
478 off -= vol->usable_leb_size;
479 }
480
481 buf += len;
482 size -= len;
483 } while (size);
484
485 exit:
486 free(tbuf);
487 return ret;
488 }
489
ubi_volume_write(char * volume,void * buf,loff_t offset,size_t size)490 int ubi_volume_write(char *volume, void *buf, loff_t offset, size_t size)
491 {
492 int ret;
493
494 led_activity_blink();
495
496 if (!offset)
497 ret = ubi_volume_begin_write(volume, buf, size, size);
498 else
499 ret = ubi_volume_offset_write(volume, buf, offset, size);
500
501 led_activity_off();
502
503 return ret;
504 }
505
ubi_volume_read(char * volume,char * buf,loff_t offset,size_t size)506 int ubi_volume_read(char *volume, char *buf, loff_t offset, size_t size)
507 {
508 int err, lnum, off, len, tbuf_size;
509 void *tbuf;
510 unsigned long long tmp;
511 struct ubi_volume *vol;
512 loff_t offp = offset;
513 size_t len_read;
514
515 vol = ubi_find_volume(volume);
516 if (vol == NULL)
517 return ENODEV;
518
519 if (vol->updating) {
520 printf("updating");
521 return EBUSY;
522 }
523 if (vol->upd_marker) {
524 printf("damaged volume, update marker is set");
525 return EBADF;
526 }
527 if (offp == vol->used_bytes)
528 return 0;
529
530 if (size == 0) {
531 printf("No size specified -> Using max size (%lld)\n", vol->used_bytes);
532 size = vol->used_bytes;
533 }
534
535 printf("Read %zu bytes from volume %s to %p\n", size, volume, buf);
536
537 if (vol->corrupted)
538 printf("read from corrupted volume %d", vol->vol_id);
539 if (offp + size > vol->used_bytes)
540 size = vol->used_bytes - offp;
541
542 tbuf_size = vol->usable_leb_size;
543 if (size < tbuf_size)
544 tbuf_size = ALIGN(size, ubi->min_io_size);
545 tbuf = malloc_cache_aligned(tbuf_size);
546 if (!tbuf) {
547 printf("NO MEM\n");
548 return ENOMEM;
549 }
550 len = size > tbuf_size ? tbuf_size : size;
551
552 tmp = offp;
553 off = do_div(tmp, vol->usable_leb_size);
554 lnum = tmp;
555 len_read = size;
556 do {
557 if (off + len >= vol->usable_leb_size)
558 len = vol->usable_leb_size - off;
559
560 err = ubi_eba_read_leb(ubi, vol, lnum, tbuf, off, len, 0);
561 if (err) {
562 printf("read err %x\n", err);
563 err = -err;
564 break;
565 }
566 off += len;
567 if (off == vol->usable_leb_size) {
568 lnum += 1;
569 off -= vol->usable_leb_size;
570 }
571
572 size -= len;
573 offp += len;
574
575 memcpy(buf, tbuf, len);
576
577 buf += len;
578 len = size > tbuf_size ? tbuf_size : size;
579 } while (size);
580
581 if (!size)
582 env_set_hex("filesize", len_read);
583
584 free(tbuf);
585 return err;
586 }
587
ubi_dev_scan(struct mtd_info * info,const char * vid_header_offset)588 static int ubi_dev_scan(struct mtd_info *info, const char *vid_header_offset)
589 {
590 char ubi_mtd_param_buffer[80];
591 int err;
592
593 if (!vid_header_offset)
594 sprintf(ubi_mtd_param_buffer, "%s", info->name);
595 else
596 sprintf(ubi_mtd_param_buffer, "%s,%s", info->name,
597 vid_header_offset);
598
599 err = ubi_mtd_param_parse(ubi_mtd_param_buffer, NULL);
600 if (err)
601 return -err;
602
603 err = ubi_init();
604 if (err)
605 return -err;
606
607 return 0;
608 }
609
ubi_set_skip_check(char * volume,bool skip_check)610 static int ubi_set_skip_check(char *volume, bool skip_check)
611 {
612 struct ubi_vtbl_record vtbl_rec;
613 struct ubi_volume *vol;
614
615 vol = ubi_find_volume(volume);
616 if (!vol)
617 return ENODEV;
618
619 printf("%sing skip_check on volume %s\n",
620 skip_check ? "Sett" : "Clear", volume);
621
622 vtbl_rec = ubi->vtbl[vol->vol_id];
623 if (skip_check) {
624 vtbl_rec.flags |= UBI_VTBL_SKIP_CRC_CHECK_FLG;
625 vol->skip_check = 1;
626 } else {
627 vtbl_rec.flags &= ~UBI_VTBL_SKIP_CRC_CHECK_FLG;
628 vol->skip_check = 0;
629 }
630
631 return ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec);
632 }
633
ubi_detach(void)634 static int ubi_detach(void)
635 {
636 #ifdef CONFIG_CMD_UBIFS
637 /*
638 * Automatically unmount UBIFS partition when user
639 * changes the UBI device. Otherwise the following
640 * UBIFS commands will crash.
641 */
642 if (ubifs_is_mounted())
643 cmd_ubifs_umount();
644 #endif
645
646 /*
647 * Call ubi_exit() before re-initializing the UBI subsystem
648 */
649 if (ubi)
650 ubi_exit();
651
652 ubi = NULL;
653
654 return 0;
655 }
656
ubi_part(char * part_name,const char * vid_header_offset)657 int ubi_part(char *part_name, const char *vid_header_offset)
658 {
659 struct mtd_info *mtd;
660 int err;
661
662 if (ubi && ubi->mtd && !strcmp(ubi->mtd->name, part_name)) {
663 printf("UBI partition '%s' already selected\n", part_name);
664 return 0;
665 }
666
667 ubi_detach();
668
669 mtd_probe_devices();
670 mtd = get_mtd_device_nm(part_name);
671 if (IS_ERR(mtd)) {
672 printf("Partition %s not found!\n", part_name);
673 return 1;
674 }
675 put_mtd_device(mtd);
676
677 err = ubi_dev_scan(mtd, vid_header_offset);
678 if (err) {
679 printf("UBI init error %d\n", err);
680 printf("Please check, if the correct MTD partition is used (size big enough?)\n");
681 return err;
682 }
683
684 ubi = ubi_devices[0];
685
686 return 0;
687 }
688
do_ubi(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])689 static int do_ubi(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
690 {
691 int64_t size;
692 ulong addr = 0;
693 bool skipcheck = false;
694
695 if (argc < 2)
696 return CMD_RET_USAGE;
697
698 if (strcmp(argv[1], "detach") == 0)
699 return ubi_detach();
700
701 if (strcmp(argv[1], "part") == 0) {
702 const char *vid_header_offset = NULL;
703
704 /* Print current partition */
705 if (argc == 2) {
706 if (!ubi) {
707 printf("Error, no UBI device selected!\n");
708 return 1;
709 }
710
711 printf("Device %d: %s, MTD partition %s\n",
712 ubi->ubi_num, ubi->ubi_name, ubi->mtd->name);
713 return 0;
714 }
715
716 if (argc < 3)
717 return CMD_RET_USAGE;
718
719 if (argc > 3)
720 vid_header_offset = argv[3];
721
722 return ubi_part(argv[2], vid_header_offset);
723 }
724
725 if ((strcmp(argv[1], "part") != 0) && !ubi) {
726 printf("Error, no UBI device selected!\n");
727 return 1;
728 }
729
730 if (strcmp(argv[1], "info") == 0) {
731 int layout = 0;
732 if (argc > 2 && !strncmp(argv[2], "l", 1))
733 layout = 1;
734 return ubi_info(layout);
735 }
736
737 if (strcmp(argv[1], "list") == 0) {
738 int numeric = 0;
739 if (argc >= 3 && argv[2][0] == '-') {
740 if (strcmp(argv[2], "-numeric") == 0)
741 numeric = 1;
742 else
743 return CMD_RET_USAGE;
744 }
745 if (!numeric && argc != 2 && argc != 3)
746 return CMD_RET_USAGE;
747 if (numeric && argc != 3 && argc != 4)
748 return CMD_RET_USAGE;
749 return ubi_list(argv[numeric ? 3 : 2], numeric);
750 }
751
752 if (strcmp(argv[1], "check") == 0) {
753 if (argc > 2)
754 return ubi_check(argv[2]);
755
756 printf("Error, no volume name passed\n");
757 return 1;
758 }
759
760 if (strncmp(argv[1], "create", 6) == 0) {
761 int dynamic = 1; /* default: dynamic volume */
762 int id = UBI_VOL_NUM_AUTO;
763
764 /* Use maximum available size */
765 size = 0;
766
767 /* E.g., create volume with "skipcheck" bit set */
768 if (argc == 7) {
769 skipcheck = strncmp(argv[6], "--skipcheck", 11) == 0;
770 argc--;
771 }
772
773 /* E.g., create volume size type vol_id */
774 if (argc == 6) {
775 id = simple_strtoull(argv[5], NULL, 16);
776 argc--;
777 }
778
779 /* E.g., create volume size type */
780 if (argc == 5) {
781 if (strncmp(argv[4], "s", 1) == 0)
782 dynamic = 0;
783 else if (strncmp(argv[4], "d", 1) != 0) {
784 printf("Incorrect type\n");
785 return 1;
786 }
787 argc--;
788 }
789 /* E.g., create volume size */
790 if (argc == 4) {
791 if (argv[3][0] != '-')
792 size = simple_strtoull(argv[3], NULL, 16);
793 argc--;
794 }
795 /* Use maximum available size */
796 if (!size) {
797 size = (int64_t)ubi->avail_pebs * ubi->leb_size;
798 printf("No size specified -> Using max size (%lld)\n", size);
799 }
800 /* E.g., create volume */
801 if (argc == 3) {
802 return ubi_create_vol(argv[2], size, dynamic, id,
803 skipcheck);
804 }
805 }
806
807 if (strncmp(argv[1], "remove", 6) == 0) {
808 /* E.g., remove volume */
809 if (argc == 3)
810 return ubi_remove_vol(argv[2]);
811 }
812
813 if (IS_ENABLED(CONFIG_CMD_UBI_RENAME) && !strncmp(argv[1], "rename", 6))
814 return ubi_rename_vol(argv[2], argv[3]);
815
816 if (strncmp(argv[1], "skipcheck", 9) == 0) {
817 /* E.g., change skip_check flag */
818 if (argc == 4) {
819 skipcheck = strncmp(argv[3], "on", 2) == 0;
820 return ubi_set_skip_check(argv[2], skipcheck);
821 }
822 }
823
824 if (strncmp(argv[1], "write", 5) == 0) {
825 int ret;
826
827 if (argc < 5) {
828 printf("Please see usage\n");
829 return 1;
830 }
831
832 addr = hextoul(argv[2], NULL);
833 size = hextoul(argv[4], NULL);
834
835 if (strlen(argv[1]) == 10 &&
836 strncmp(argv[1] + 5, ".part", 5) == 0) {
837 if (argc < 6) {
838 ret = ubi_volume_continue_write(argv[3],
839 (void *)addr, size);
840 } else {
841 size_t full_size;
842 full_size = hextoul(argv[5], NULL);
843 ret = ubi_volume_begin_write(argv[3],
844 (void *)addr, size, full_size);
845 }
846 } else {
847 ret = ubi_volume_write(argv[3], (void *)addr, 0, size);
848 }
849 if (!ret) {
850 printf("%lld bytes written to volume %s\n", size,
851 argv[3]);
852 }
853
854 return ret;
855 }
856
857 if (strncmp(argv[1], "read", 4) == 0) {
858 size = 0;
859
860 /* E.g., read volume size */
861 if (argc == 5) {
862 size = hextoul(argv[4], NULL);
863 argc--;
864 }
865
866 /* E.g., read volume */
867 if (argc == 4) {
868 addr = hextoul(argv[2], NULL);
869 argc--;
870 }
871
872 if (argc == 3) {
873 return ubi_volume_read(argv[3], (char *)addr, 0, size);
874 }
875 }
876
877 printf("Please see usage\n");
878 return 1;
879 }
880
881 U_BOOT_CMD(
882 ubi, 7, 1, do_ubi,
883 "ubi commands",
884 "detach"
885 " - detach ubi from a mtd partition\n"
886 "ubi part [part] [offset]\n"
887 " - Show or set current partition (with optional VID"
888 " header offset)\n"
889 "ubi info [l[ayout]]"
890 " - Display volume and ubi layout information\n"
891 "ubi list [flags]"
892 " - print the list of volumes\n"
893 "ubi list [flags] <varname>"
894 " - set environment variable to the list of volumes"
895 " (flags can be -numeric)\n"
896 "ubi check volumename"
897 " - check if volumename exists\n"
898 "ubi create[vol] volume [size] [type] [id] [--skipcheck]\n"
899 " - create volume name with size ('-' for maximum"
900 " available size)\n"
901 "ubi write[vol] address volume size"
902 " - Write volume from address with size\n"
903 "ubi write.part address volume size [fullsize]\n"
904 " - Write part of a volume from address\n"
905 "ubi read[vol] address volume [size]"
906 " - Read volume to address with size\n"
907 "ubi remove[vol] volume"
908 " - Remove volume\n"
909 #if IS_ENABLED(CONFIG_CMD_UBI_RENAME)
910 "ubi rename oldname newname\n"
911 #endif
912 "ubi skipcheck volume on/off - Set or clear skip_check flag in volume header\n"
913 "[Legends]\n"
914 " volume: character name\n"
915 " size: specified in bytes\n"
916 " type: s[tatic] or d[ynamic] (default=dynamic)"
917 );
918