2 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
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.
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
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/>.
25 #include <sandboxfs.h>
26 #include <ubifs_uboot.h>
29 #include <linux/math64.h>
31 DECLARE_GLOBAL_DATA_PTR;
33 static block_dev_desc_t *fs_dev_desc;
34 static disk_partition_t fs_partition;
35 static int fs_type = FS_TYPE_ANY;
37 static inline int fs_probe_unsupported(block_dev_desc_t *fs_dev_desc,
38 disk_partition_t *fs_partition)
40 printf("** Unrecognized filesystem type **\n");
44 static inline int fs_ls_unsupported(const char *dirname)
49 static inline int fs_exists_unsupported(const char *filename)
54 static inline int fs_size_unsupported(const char *filename, loff_t *size)
59 static inline int fs_read_unsupported(const char *filename, void *buf,
60 loff_t offset, loff_t len,
66 static inline int fs_write_unsupported(const char *filename, void *buf,
67 loff_t offset, loff_t len,
73 static inline void fs_close_unsupported(void)
77 static inline int fs_uuid_unsupported(char *uuid_str)
86 * Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This
87 * should be false in most cases. For "virtual" filesystems which
88 * aren't based on a U-Boot block device (e.g. sandbox), this can be
89 * set to true. This should also be true for the dumm entry at the end
90 * of fstypes[], since that is essentially a "virtual" (non-existent)
93 bool null_dev_desc_ok;
94 int (*probe)(block_dev_desc_t *fs_dev_desc,
95 disk_partition_t *fs_partition);
96 int (*ls)(const char *dirname);
97 int (*exists)(const char *filename);
98 int (*size)(const char *filename, loff_t *size);
99 int (*read)(const char *filename, void *buf, loff_t offset,
100 loff_t len, loff_t *actread);
101 int (*write)(const char *filename, void *buf, loff_t offset,
102 loff_t len, loff_t *actwrite);
104 int (*uuid)(char *uuid_str);
107 static struct fstype_info fstypes[] = {
110 .fstype = FS_TYPE_FAT,
112 .null_dev_desc_ok = false,
113 .probe = fat_set_blk_dev,
116 .exists = fat_exists,
118 .read = fat_read_file,
119 #ifdef CONFIG_FAT_WRITE
120 .write = file_fat_write,
122 .write = fs_write_unsupported,
124 .uuid = fs_uuid_unsupported,
127 #ifdef CONFIG_FS_EXT4
129 .fstype = FS_TYPE_EXT,
131 .null_dev_desc_ok = false,
132 .probe = ext4fs_probe,
133 .close = ext4fs_close,
135 .exists = ext4fs_exists,
137 .read = ext4_read_file,
138 #ifdef CONFIG_CMD_EXT4_WRITE
139 .write = ext4_write_file,
141 .write = fs_write_unsupported,
146 #ifdef CONFIG_SANDBOX
148 .fstype = FS_TYPE_SANDBOX,
150 .null_dev_desc_ok = true,
151 .probe = sandbox_fs_set_blk_dev,
152 .close = sandbox_fs_close,
154 .exists = sandbox_fs_exists,
155 .size = sandbox_fs_size,
156 .read = fs_read_sandbox,
157 .write = fs_write_sandbox,
158 .uuid = fs_uuid_unsupported,
161 #ifdef CONFIG_CMD_UBIFS
163 .fstype = FS_TYPE_UBIFS,
165 .null_dev_desc_ok = true,
166 .probe = ubifs_set_blk_dev,
167 .close = ubifs_close,
169 .exists = ubifs_exists,
172 .write = fs_write_unsupported,
173 .uuid = fs_uuid_unsupported,
177 .fstype = FS_TYPE_ANY,
178 .name = "unsupported",
179 .null_dev_desc_ok = true,
180 .probe = fs_probe_unsupported,
181 .close = fs_close_unsupported,
182 .ls = fs_ls_unsupported,
183 .exists = fs_exists_unsupported,
184 .size = fs_size_unsupported,
185 .read = fs_read_unsupported,
186 .write = fs_write_unsupported,
187 .uuid = fs_uuid_unsupported,
191 static struct fstype_info *fs_get_info(int fstype)
193 struct fstype_info *info;
196 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
197 if (fstype == info->fstype)
201 /* Return the 'unsupported' sentinel */
205 int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
207 struct fstype_info *info;
209 #ifdef CONFIG_NEEDS_MANUAL_RELOC
210 static int relocated;
213 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
215 info->name += gd->reloc_off;
216 info->probe += gd->reloc_off;
217 info->close += gd->reloc_off;
218 info->ls += gd->reloc_off;
219 info->read += gd->reloc_off;
220 info->write += gd->reloc_off;
226 part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc,
231 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
232 if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
233 fstype != info->fstype)
236 if (!fs_dev_desc && !info->null_dev_desc_ok)
239 if (!info->probe(fs_dev_desc, &fs_partition)) {
240 fs_type = info->fstype;
248 static void fs_close(void)
250 struct fstype_info *info = fs_get_info(fs_type);
254 fs_type = FS_TYPE_ANY;
257 int fs_uuid(char *uuid_str)
259 struct fstype_info *info = fs_get_info(fs_type);
261 return info->uuid(uuid_str);
264 int fs_ls(const char *dirname)
268 struct fstype_info *info = fs_get_info(fs_type);
270 ret = info->ls(dirname);
272 fs_type = FS_TYPE_ANY;
278 int fs_exists(const char *filename)
282 struct fstype_info *info = fs_get_info(fs_type);
284 ret = info->exists(filename);
291 int fs_size(const char *filename, loff_t *size)
295 struct fstype_info *info = fs_get_info(fs_type);
297 ret = info->size(filename, size);
304 int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
307 struct fstype_info *info = fs_get_info(fs_type);
312 * We don't actually know how many bytes are being read, since len==0
313 * means read the whole file.
315 buf = map_sysmem(addr, len);
316 ret = info->read(filename, buf, offset, len, actread);
319 /* If we requested a specific number of bytes, check we got it */
320 if (ret == 0 && len && *actread != len)
321 printf("** %s shorter than offset + len **\n", filename);
327 int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
330 struct fstype_info *info = fs_get_info(fs_type);
334 buf = map_sysmem(addr, len);
335 ret = info->write(filename, buf, offset, len, actwrite);
338 if (ret < 0 && len != *actwrite) {
339 printf("** Unable to write file %s **\n", filename);
347 int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
353 return CMD_RET_USAGE;
355 if (fs_set_blk_dev(argv[1], argv[2], fstype))
358 if (fs_size(argv[3], &size) < 0)
359 return CMD_RET_FAILURE;
361 setenv_hex("filesize", size);
366 int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
370 const char *addr_str;
371 const char *filename;
380 return CMD_RET_USAGE;
382 return CMD_RET_USAGE;
384 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
388 addr = simple_strtoul(argv[3], &ep, 16);
389 if (ep == argv[3] || *ep != '\0')
390 return CMD_RET_USAGE;
392 addr_str = getenv("loadaddr");
393 if (addr_str != NULL)
394 addr = simple_strtoul(addr_str, NULL, 16);
396 addr = CONFIG_SYS_LOAD_ADDR;
401 filename = getenv("bootfile");
403 puts("** No boot file defined **\n");
408 bytes = simple_strtoul(argv[5], NULL, 16);
412 pos = simple_strtoul(argv[6], NULL, 16);
417 ret = fs_read(filename, addr, pos, bytes, &len_read);
418 time = get_timer(time);
422 printf("%llu bytes read in %lu ms", len_read, time);
425 print_size(div_u64(len_read, time) * 1000, "/s");
430 setenv_hex("filesize", len_read);
435 int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
439 return CMD_RET_USAGE;
441 return CMD_RET_USAGE;
443 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
446 if (fs_ls(argc >= 4 ? argv[3] : "/"))
452 int file_exists(const char *dev_type, const char *dev_part, const char *file,
455 if (fs_set_blk_dev(dev_type, dev_part, fstype))
458 return fs_exists(file);
461 int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
465 const char *filename;
472 if (argc < 6 || argc > 7)
473 return CMD_RET_USAGE;
475 if (fs_set_blk_dev(argv[1], argv[2], fstype))
478 addr = simple_strtoul(argv[3], NULL, 16);
480 bytes = simple_strtoul(argv[5], NULL, 16);
482 pos = simple_strtoul(argv[6], NULL, 16);
487 ret = fs_write(filename, addr, pos, bytes, &len);
488 time = get_timer(time);
492 printf("%llu bytes written in %lu ms", len, time);
495 print_size(div_u64(len, time) * 1000, "/s");
503 int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
508 memset(uuid, 0, sizeof(uuid));
510 if (argc < 3 || argc > 4)
511 return CMD_RET_USAGE;
513 if (fs_set_blk_dev(argv[1], argv[2], fstype))
518 return CMD_RET_FAILURE;
521 setenv(argv[3], uuid);
523 printf("%s\n", uuid);
525 return CMD_RET_SUCCESS;
528 int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
530 struct fstype_info *info;
532 if (argc < 3 || argc > 4)
533 return CMD_RET_USAGE;
535 if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
538 info = fs_get_info(fs_type);
541 setenv(argv[3], info->name);
543 printf("%s\n", info->name);
545 return CMD_RET_SUCCESS;