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/>.
24 #include <sandboxfs.h>
27 DECLARE_GLOBAL_DATA_PTR;
29 static block_dev_desc_t *fs_dev_desc;
30 static disk_partition_t fs_partition;
31 static int fs_type = FS_TYPE_ANY;
33 static inline int fs_probe_unsupported(block_dev_desc_t *fs_dev_desc,
34 disk_partition_t *fs_partition)
36 printf("** Unrecognized filesystem type **\n");
40 static inline int fs_ls_unsupported(const char *dirname)
45 static inline int fs_exists_unsupported(const char *filename)
50 static inline int fs_size_unsupported(const char *filename, loff_t *size)
55 static inline int fs_read_unsupported(const char *filename, void *buf,
56 loff_t offset, loff_t len,
62 static inline int fs_write_unsupported(const char *filename, void *buf,
63 loff_t offset, loff_t len,
69 static inline void fs_close_unsupported(void)
73 static inline int fs_uuid_unsupported(char *uuid_str)
81 * Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This
82 * should be false in most cases. For "virtual" filesystems which
83 * aren't based on a U-Boot block device (e.g. sandbox), this can be
84 * set to true. This should also be true for the dumm entry at the end
85 * of fstypes[], since that is essentially a "virtual" (non-existent)
88 bool null_dev_desc_ok;
89 int (*probe)(block_dev_desc_t *fs_dev_desc,
90 disk_partition_t *fs_partition);
91 int (*ls)(const char *dirname);
92 int (*exists)(const char *filename);
93 int (*size)(const char *filename, loff_t *size);
94 int (*read)(const char *filename, void *buf, loff_t offset,
95 loff_t len, loff_t *actread);
96 int (*write)(const char *filename, void *buf, loff_t offset,
97 loff_t len, loff_t *actwrite);
99 int (*uuid)(char *uuid_str);
102 static struct fstype_info fstypes[] = {
105 .fstype = FS_TYPE_FAT,
106 .null_dev_desc_ok = false,
107 .probe = fat_set_blk_dev,
110 .exists = fat_exists,
112 .read = fat_read_file,
113 #ifdef CONFIG_FAT_WRITE
114 .write = file_fat_write,
116 .write = fs_write_unsupported,
118 .uuid = fs_uuid_unsupported,
121 #ifdef CONFIG_FS_EXT4
123 .fstype = FS_TYPE_EXT,
124 .null_dev_desc_ok = false,
125 .probe = ext4fs_probe,
126 .close = ext4fs_close,
128 .exists = ext4fs_exists,
130 .read = ext4_read_file,
131 #ifdef CONFIG_CMD_EXT4_WRITE
132 .write = ext4_write_file,
134 .write = fs_write_unsupported,
139 #ifdef CONFIG_SANDBOX
141 .fstype = FS_TYPE_SANDBOX,
142 .null_dev_desc_ok = true,
143 .probe = sandbox_fs_set_blk_dev,
144 .close = sandbox_fs_close,
146 .exists = sandbox_fs_exists,
147 .size = sandbox_fs_size,
148 .read = fs_read_sandbox,
149 .write = fs_write_sandbox,
150 .uuid = fs_uuid_unsupported,
154 .fstype = FS_TYPE_ANY,
155 .null_dev_desc_ok = true,
156 .probe = fs_probe_unsupported,
157 .close = fs_close_unsupported,
158 .ls = fs_ls_unsupported,
159 .exists = fs_exists_unsupported,
160 .size = fs_size_unsupported,
161 .read = fs_read_unsupported,
162 .write = fs_write_unsupported,
163 .uuid = fs_uuid_unsupported,
167 static struct fstype_info *fs_get_info(int fstype)
169 struct fstype_info *info;
172 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
173 if (fstype == info->fstype)
177 /* Return the 'unsupported' sentinel */
181 int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
183 struct fstype_info *info;
185 #ifdef CONFIG_NEEDS_MANUAL_RELOC
186 static int relocated;
189 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
191 info->probe += gd->reloc_off;
192 info->close += gd->reloc_off;
193 info->ls += gd->reloc_off;
194 info->read += gd->reloc_off;
195 info->write += gd->reloc_off;
201 part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc,
206 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) {
207 if (fstype != FS_TYPE_ANY && info->fstype != FS_TYPE_ANY &&
208 fstype != info->fstype)
211 if (!fs_dev_desc && !info->null_dev_desc_ok)
214 if (!info->probe(fs_dev_desc, &fs_partition)) {
215 fs_type = info->fstype;
223 static void fs_close(void)
225 struct fstype_info *info = fs_get_info(fs_type);
229 fs_type = FS_TYPE_ANY;
232 int fs_uuid(char *uuid_str)
234 struct fstype_info *info = fs_get_info(fs_type);
236 return info->uuid(uuid_str);
239 int fs_ls(const char *dirname)
243 struct fstype_info *info = fs_get_info(fs_type);
245 ret = info->ls(dirname);
247 fs_type = FS_TYPE_ANY;
253 int fs_exists(const char *filename)
257 struct fstype_info *info = fs_get_info(fs_type);
259 ret = info->exists(filename);
266 int fs_size(const char *filename, loff_t *size)
270 struct fstype_info *info = fs_get_info(fs_type);
272 ret = info->size(filename, size);
279 int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
282 struct fstype_info *info = fs_get_info(fs_type);
287 * We don't actually know how many bytes are being read, since len==0
288 * means read the whole file.
290 buf = map_sysmem(addr, len);
291 ret = info->read(filename, buf, offset, len, actread);
294 /* If we requested a specific number of bytes, check we got it */
295 if (ret == 0 && len && *actread != len) {
296 printf("** Unable to read file %s **\n", filename);
304 int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
307 struct fstype_info *info = fs_get_info(fs_type);
311 buf = map_sysmem(addr, len);
312 ret = info->write(filename, buf, offset, len, actwrite);
315 if (ret < 0 && len != *actwrite) {
316 printf("** Unable to write file %s **\n", filename);
324 int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
330 return CMD_RET_USAGE;
332 if (fs_set_blk_dev(argv[1], argv[2], fstype))
335 if (fs_size(argv[3], &size) < 0)
336 return CMD_RET_FAILURE;
338 setenv_hex("filesize", size);
343 int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
347 const char *addr_str;
348 const char *filename;
357 return CMD_RET_USAGE;
359 return CMD_RET_USAGE;
361 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
365 addr = simple_strtoul(argv[3], &ep, 16);
366 if (ep == argv[3] || *ep != '\0')
367 return CMD_RET_USAGE;
369 addr_str = getenv("loadaddr");
370 if (addr_str != NULL)
371 addr = simple_strtoul(addr_str, NULL, 16);
373 addr = CONFIG_SYS_LOAD_ADDR;
378 filename = getenv("bootfile");
380 puts("** No boot file defined **\n");
385 bytes = simple_strtoul(argv[5], NULL, 16);
389 pos = simple_strtoul(argv[6], NULL, 16);
394 ret = fs_read(filename, addr, pos, bytes, &len_read);
395 time = get_timer(time);
399 printf("%llu bytes read in %lu ms", len_read, time);
402 print_size(len_read / time * 1000, "/s");
407 setenv_hex("filesize", len_read);
412 int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
416 return CMD_RET_USAGE;
418 return CMD_RET_USAGE;
420 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
423 if (fs_ls(argc >= 4 ? argv[3] : "/"))
429 int file_exists(const char *dev_type, const char *dev_part, const char *file,
432 if (fs_set_blk_dev(dev_type, dev_part, fstype))
435 return fs_exists(file);
438 int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
442 const char *filename;
449 if (argc < 6 || argc > 7)
450 return CMD_RET_USAGE;
452 if (fs_set_blk_dev(argv[1], argv[2], fstype))
455 addr = simple_strtoul(argv[3], NULL, 16);
457 bytes = simple_strtoul(argv[5], NULL, 16);
459 pos = simple_strtoul(argv[6], NULL, 16);
464 ret = fs_write(filename, addr, pos, bytes, &len);
465 time = get_timer(time);
469 printf("%llu bytes written in %lu ms", len, time);
472 print_size(len / time * 1000, "/s");
480 int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
485 memset(uuid, 0, sizeof(uuid));
487 if (argc < 3 || argc > 4)
488 return CMD_RET_USAGE;
490 if (fs_set_blk_dev(argv[1], argv[2], fstype))
495 return CMD_RET_FAILURE;
498 setenv(argv[3], uuid);
500 printf("%s\n", uuid);
502 return CMD_RET_SUCCESS;