]> Git Repo - J-u-boot.git/blame - fs/fs.c
fs/ext4/ext4fs.c, fs/fs.c fs/fat/fat_write.c: Adjust 64bit math methods
[J-u-boot.git] / fs / fs.c
CommitLineData
045fa1e1
SW
1/*
2 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#include <config.h>
59e890ef 18#include <errno.h>
045fa1e1
SW
19#include <common.h>
20#include <part.h>
21#include <ext4fs.h>
22#include <fat.h>
23#include <fs.h>
92ccc96b 24#include <sandboxfs.h>
117e0507 25#include <asm/io.h>
9e374e7b
TR
26#include <div64.h>
27#include <linux/math64.h>
045fa1e1 28
a1b231ce
SW
29DECLARE_GLOBAL_DATA_PTR;
30
045fa1e1
SW
31static block_dev_desc_t *fs_dev_desc;
32static disk_partition_t fs_partition;
33static int fs_type = FS_TYPE_ANY;
34
2ded0d47
SG
35static inline int fs_probe_unsupported(block_dev_desc_t *fs_dev_desc,
36 disk_partition_t *fs_partition)
436e2b73
SG
37{
38 printf("** Unrecognized filesystem type **\n");
39 return -1;
40}
41
045fa1e1
SW
42static inline int fs_ls_unsupported(const char *dirname)
43{
045fa1e1
SW
44 return -1;
45}
46
6152916a
SW
47static inline int fs_exists_unsupported(const char *filename)
48{
49 return 0;
50}
51
d455d878 52static inline int fs_size_unsupported(const char *filename, loff_t *size)
cf659819
SW
53{
54 return -1;
55}
56
117e0507 57static inline int fs_read_unsupported(const char *filename, void *buf,
d455d878
SR
58 loff_t offset, loff_t len,
59 loff_t *actread)
045fa1e1 60{
045fa1e1
SW
61 return -1;
62}
63
a8f6ab52 64static inline int fs_write_unsupported(const char *filename, void *buf,
d455d878
SR
65 loff_t offset, loff_t len,
66 loff_t *actwrite)
a8f6ab52
SG
67{
68 return -1;
69}
70
436e2b73
SG
71static inline void fs_close_unsupported(void)
72{
73}
74
59e890ef
CG
75static inline int fs_uuid_unsupported(char *uuid_str)
76{
77 return -1;
78}
79
436e2b73 80struct fstype_info {
045fa1e1 81 int fstype;
377202b5
SW
82 /*
83 * Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This
84 * should be false in most cases. For "virtual" filesystems which
85 * aren't based on a U-Boot block device (e.g. sandbox), this can be
86 * set to true. This should also be true for the dumm entry at the end
87 * of fstypes[], since that is essentially a "virtual" (non-existent)
88 * filesystem.
89 */
90 bool null_dev_desc_ok;
2ded0d47
SG
91 int (*probe)(block_dev_desc_t *fs_dev_desc,
92 disk_partition_t *fs_partition);
436e2b73 93 int (*ls)(const char *dirname);
6152916a 94 int (*exists)(const char *filename);
d455d878
SR
95 int (*size)(const char *filename, loff_t *size);
96 int (*read)(const char *filename, void *buf, loff_t offset,
97 loff_t len, loff_t *actread);
98 int (*write)(const char *filename, void *buf, loff_t offset,
99 loff_t len, loff_t *actwrite);
436e2b73 100 void (*close)(void);
59e890ef 101 int (*uuid)(char *uuid_str);
436e2b73
SG
102};
103
104static struct fstype_info fstypes[] = {
105#ifdef CONFIG_FS_FAT
045fa1e1
SW
106 {
107 .fstype = FS_TYPE_FAT,
377202b5 108 .null_dev_desc_ok = false,
e6d52415
SG
109 .probe = fat_set_blk_dev,
110 .close = fat_close,
436e2b73 111 .ls = file_fat_ls,
b7b5f319 112 .exists = fat_exists,
cf659819 113 .size = fat_size,
e6d52415 114 .read = fat_read_file,
d455d878
SR
115#ifdef CONFIG_FAT_WRITE
116 .write = file_fat_write,
117#else
bd6fb31f 118 .write = fs_write_unsupported,
d455d878 119#endif
59e890ef 120 .uuid = fs_uuid_unsupported,
045fa1e1 121 },
436e2b73
SG
122#endif
123#ifdef CONFIG_FS_EXT4
045fa1e1
SW
124 {
125 .fstype = FS_TYPE_EXT,
377202b5 126 .null_dev_desc_ok = false,
e6d52415
SG
127 .probe = ext4fs_probe,
128 .close = ext4fs_close,
436e2b73 129 .ls = ext4fs_ls,
55af5c93 130 .exists = ext4fs_exists,
cf659819 131 .size = ext4fs_size,
e6d52415 132 .read = ext4_read_file,
d455d878
SR
133#ifdef CONFIG_CMD_EXT4_WRITE
134 .write = ext4_write_file,
135#else
bd6fb31f 136 .write = fs_write_unsupported,
d455d878 137#endif
59e890ef 138 .uuid = ext4fs_uuid,
436e2b73 139 },
92ccc96b
SG
140#endif
141#ifdef CONFIG_SANDBOX
142 {
143 .fstype = FS_TYPE_SANDBOX,
377202b5 144 .null_dev_desc_ok = true,
92ccc96b
SG
145 .probe = sandbox_fs_set_blk_dev,
146 .close = sandbox_fs_close,
147 .ls = sandbox_fs_ls,
0a30aa1e 148 .exists = sandbox_fs_exists,
cf659819 149 .size = sandbox_fs_size,
92ccc96b 150 .read = fs_read_sandbox,
7eb2c8d5 151 .write = fs_write_sandbox,
59e890ef 152 .uuid = fs_uuid_unsupported,
92ccc96b 153 },
436e2b73
SG
154#endif
155 {
156 .fstype = FS_TYPE_ANY,
377202b5 157 .null_dev_desc_ok = true,
436e2b73
SG
158 .probe = fs_probe_unsupported,
159 .close = fs_close_unsupported,
160 .ls = fs_ls_unsupported,
6152916a 161 .exists = fs_exists_unsupported,
cf659819 162 .size = fs_size_unsupported,
436e2b73 163 .read = fs_read_unsupported,
a8f6ab52 164 .write = fs_write_unsupported,
59e890ef 165 .uuid = fs_uuid_unsupported,
045fa1e1
SW
166 },
167};
168
c6f548d2
SG
169static struct fstype_info *fs_get_info(int fstype)
170{
171 struct fstype_info *info;
172 int i;
173
174 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
175 if (fstype == info->fstype)
176 return info;
177 }
178
179 /* Return the 'unsupported' sentinel */
180 return info;
181}
182
045fa1e1
SW
183int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
184{
436e2b73 185 struct fstype_info *info;
045fa1e1 186 int part, i;
a1b231ce
SW
187#ifdef CONFIG_NEEDS_MANUAL_RELOC
188 static int relocated;
189
190 if (!relocated) {
436e2b73
SG
191 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
192 i++, info++) {
193 info->probe += gd->reloc_off;
194 info->close += gd->reloc_off;
195 info->ls += gd->reloc_off;
196 info->read += gd->reloc_off;
a8f6ab52 197 info->write += gd->reloc_off;
436e2b73 198 }
a1b231ce
SW
199 relocated = 1;
200 }
201#endif
045fa1e1
SW
202
203 part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc,
204 &fs_partition, 1);
205 if (part < 0)
206 return -1;
207
436e2b73
SG
208 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
209 if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
210 fstype != info->fstype)
045fa1e1
SW
211 continue;
212
377202b5
SW
213 if (!fs_dev_desc && !info->null_dev_desc_ok)
214 continue;
215
2ded0d47 216 if (!info->probe(fs_dev_desc, &fs_partition)) {
436e2b73 217 fs_type = info->fstype;
045fa1e1
SW
218 return 0;
219 }
220 }
221
045fa1e1
SW
222 return -1;
223}
224
225static void fs_close(void)
226{
c6f548d2 227 struct fstype_info *info = fs_get_info(fs_type);
045fa1e1 228
c6f548d2 229 info->close();
e6d52415 230
045fa1e1
SW
231 fs_type = FS_TYPE_ANY;
232}
233
59e890ef
CG
234int fs_uuid(char *uuid_str)
235{
236 struct fstype_info *info = fs_get_info(fs_type);
237
238 return info->uuid(uuid_str);
239}
240
045fa1e1
SW
241int fs_ls(const char *dirname)
242{
243 int ret;
244
c6f548d2
SG
245 struct fstype_info *info = fs_get_info(fs_type);
246
247 ret = info->ls(dirname);
045fa1e1 248
e6d52415 249 fs_type = FS_TYPE_ANY;
045fa1e1
SW
250 fs_close();
251
252 return ret;
253}
254
6152916a
SW
255int fs_exists(const char *filename)
256{
257 int ret;
258
259 struct fstype_info *info = fs_get_info(fs_type);
260
261 ret = info->exists(filename);
262
263 fs_close();
264
265 return ret;
266}
267
d455d878 268int fs_size(const char *filename, loff_t *size)
cf659819
SW
269{
270 int ret;
271
272 struct fstype_info *info = fs_get_info(fs_type);
273
d455d878 274 ret = info->size(filename, size);
cf659819
SW
275
276 fs_close();
277
278 return ret;
279}
280
d455d878
SR
281int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
282 loff_t *actread)
045fa1e1 283{
c6f548d2 284 struct fstype_info *info = fs_get_info(fs_type);
117e0507 285 void *buf;
045fa1e1
SW
286 int ret;
287
117e0507
SG
288 /*
289 * We don't actually know how many bytes are being read, since len==0
290 * means read the whole file.
291 */
292 buf = map_sysmem(addr, len);
d455d878 293 ret = info->read(filename, buf, offset, len, actread);
117e0507 294 unmap_sysmem(buf);
045fa1e1 295
c6f548d2 296 /* If we requested a specific number of bytes, check we got it */
d455d878 297 if (ret == 0 && len && *actread != len) {
c6f548d2
SG
298 printf("** Unable to read file %s **\n", filename);
299 ret = -1;
300 }
045fa1e1
SW
301 fs_close();
302
303 return ret;
304}
305
d455d878
SR
306int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
307 loff_t *actwrite)
a8f6ab52
SG
308{
309 struct fstype_info *info = fs_get_info(fs_type);
310 void *buf;
311 int ret;
312
a8f6ab52 313 buf = map_sysmem(addr, len);
d455d878 314 ret = info->write(filename, buf, offset, len, actwrite);
a8f6ab52
SG
315 unmap_sysmem(buf);
316
d455d878 317 if (ret < 0 && len != *actwrite) {
a8f6ab52
SG
318 printf("** Unable to write file %s **\n", filename);
319 ret = -1;
320 }
321 fs_close();
322
323 return ret;
324}
325
cf659819
SW
326int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
327 int fstype)
328{
d455d878 329 loff_t size;
cf659819
SW
330
331 if (argc != 4)
332 return CMD_RET_USAGE;
333
334 if (fs_set_blk_dev(argv[1], argv[2], fstype))
335 return 1;
336
d455d878 337 if (fs_size(argv[3], &size) < 0)
cf659819
SW
338 return CMD_RET_FAILURE;
339
340 setenv_hex("filesize", size);
341
342 return 0;
343}
344
f9b55e22 345int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
b770e88a 346 int fstype)
045fa1e1
SW
347{
348 unsigned long addr;
349 const char *addr_str;
350 const char *filename;
d455d878
SR
351 loff_t bytes;
352 loff_t pos;
353 loff_t len_read;
354 int ret;
da1fd96c 355 unsigned long time;
949bbd7c 356 char *ep;
045fa1e1 357
e9b0f99e
SW
358 if (argc < 2)
359 return CMD_RET_USAGE;
360 if (argc > 7)
045fa1e1
SW
361 return CMD_RET_USAGE;
362
e9b0f99e 363 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
045fa1e1
SW
364 return 1;
365
366 if (argc >= 4) {
949bbd7c
PM
367 addr = simple_strtoul(argv[3], &ep, 16);
368 if (ep == argv[3] || *ep != '\0')
369 return CMD_RET_USAGE;
045fa1e1
SW
370 } else {
371 addr_str = getenv("loadaddr");
372 if (addr_str != NULL)
373 addr = simple_strtoul(addr_str, NULL, 16);
374 else
375 addr = CONFIG_SYS_LOAD_ADDR;
376 }
377 if (argc >= 5) {
378 filename = argv[4];
379 } else {
380 filename = getenv("bootfile");
381 if (!filename) {
382 puts("** No boot file defined **\n");
383 return 1;
384 }
385 }
386 if (argc >= 6)
b770e88a 387 bytes = simple_strtoul(argv[5], NULL, 16);
045fa1e1
SW
388 else
389 bytes = 0;
390 if (argc >= 7)
b770e88a 391 pos = simple_strtoul(argv[6], NULL, 16);
045fa1e1
SW
392 else
393 pos = 0;
394
da1fd96c 395 time = get_timer(0);
d455d878 396 ret = fs_read(filename, addr, pos, bytes, &len_read);
da1fd96c 397 time = get_timer(time);
d455d878 398 if (ret < 0)
045fa1e1
SW
399 return 1;
400
d455d878 401 printf("%llu bytes read in %lu ms", len_read, time);
da1fd96c
AB
402 if (time > 0) {
403 puts(" (");
9e374e7b 404 print_size(div_u64(len_read, time) * 1000, "/s");
da1fd96c
AB
405 puts(")");
406 }
407 puts("\n");
045fa1e1 408
49c4f037 409 setenv_hex("filesize", len_read);
045fa1e1
SW
410
411 return 0;
412}
413
414int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
415 int fstype)
416{
417 if (argc < 2)
418 return CMD_RET_USAGE;
e9b0f99e
SW
419 if (argc > 4)
420 return CMD_RET_USAGE;
045fa1e1
SW
421
422 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
423 return 1;
424
e9b0f99e 425 if (fs_ls(argc >= 4 ? argv[3] : "/"))
045fa1e1
SW
426 return 1;
427
428 return 0;
429}
a8f6ab52 430
6152916a
SW
431int file_exists(const char *dev_type, const char *dev_part, const char *file,
432 int fstype)
433{
434 if (fs_set_blk_dev(dev_type, dev_part, fstype))
435 return 0;
436
437 return fs_exists(file);
438}
439
a8f6ab52 440int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
b770e88a 441 int fstype)
a8f6ab52
SG
442{
443 unsigned long addr;
444 const char *filename;
d455d878
SR
445 loff_t bytes;
446 loff_t pos;
447 loff_t len;
448 int ret;
a8f6ab52
SG
449 unsigned long time;
450
451 if (argc < 6 || argc > 7)
452 return CMD_RET_USAGE;
453
454 if (fs_set_blk_dev(argv[1], argv[2], fstype))
455 return 1;
456
d455d878
SR
457 addr = simple_strtoul(argv[3], NULL, 16);
458 filename = argv[4];
b770e88a 459 bytes = simple_strtoul(argv[5], NULL, 16);
a8f6ab52 460 if (argc >= 7)
b770e88a 461 pos = simple_strtoul(argv[6], NULL, 16);
a8f6ab52
SG
462 else
463 pos = 0;
464
465 time = get_timer(0);
d455d878 466 ret = fs_write(filename, addr, pos, bytes, &len);
a8f6ab52 467 time = get_timer(time);
d455d878 468 if (ret < 0)
a8f6ab52
SG
469 return 1;
470
d455d878 471 printf("%llu bytes written in %lu ms", len, time);
a8f6ab52
SG
472 if (time > 0) {
473 puts(" (");
9e374e7b 474 print_size(div_u64(len, time) * 1000, "/s");
a8f6ab52
SG
475 puts(")");
476 }
477 puts("\n");
478
479 return 0;
480}
59e890ef
CG
481
482int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
483 int fstype)
484{
485 int ret;
486 char uuid[37];
487 memset(uuid, 0, sizeof(uuid));
488
489 if (argc < 3 || argc > 4)
490 return CMD_RET_USAGE;
491
492 if (fs_set_blk_dev(argv[1], argv[2], fstype))
493 return 1;
494
495 ret = fs_uuid(uuid);
496 if (ret)
497 return CMD_RET_FAILURE;
498
499 if (argc == 4)
500 setenv(argv[3], uuid);
501 else
502 printf("%s\n", uuid);
503
504 return CMD_RET_SUCCESS;
505}
This page took 0.156202 seconds and 4 git commands to generate.