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 #include <linux/math64.h>
29 DECLARE_GLOBAL_DATA_PTR;
31 static block_dev_desc_t *fs_dev_desc;
32 static disk_partition_t fs_partition;
33 static int fs_type = FS_TYPE_ANY;
35 static inline int fs_probe_unsupported(block_dev_desc_t *fs_dev_desc,
36 disk_partition_t *fs_partition)
38 printf("** Unrecognized filesystem type **\n");
42 static inline int fs_ls_unsupported(const char *dirname)
47 static inline int fs_exists_unsupported(const char *filename)
52 static inline int fs_size_unsupported(const char *filename, loff_t *size)
57 static inline int fs_read_unsupported(const char *filename, void *buf,
58 loff_t offset, loff_t len,
64 static inline int fs_write_unsupported(const char *filename, void *buf,
65 loff_t offset, loff_t len,
71 static inline void fs_close_unsupported(void)
75 static inline int fs_uuid_unsupported(char *uuid_str)
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)
90 bool null_dev_desc_ok;
91 int (*probe)(block_dev_desc_t *fs_dev_desc,
92 disk_partition_t *fs_partition);
93 int (*ls)(const char *dirname);
94 int (*exists)(const char *filename);
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);
101 int (*uuid)(char *uuid_str);
104 static struct fstype_info fstypes[] = {
107 .fstype = FS_TYPE_FAT,
108 .null_dev_desc_ok = false,
109 .probe = fat_set_blk_dev,
112 .exists = fat_exists,
114 .read = fat_read_file,
115 #ifdef CONFIG_FAT_WRITE
116 .write = file_fat_write,
118 .write = fs_write_unsupported,
120 .uuid = fs_uuid_unsupported,
123 #ifdef CONFIG_FS_EXT4
125 .fstype = FS_TYPE_EXT,
126 .null_dev_desc_ok = false,
127 .probe = ext4fs_probe,
128 .close = ext4fs_close,
130 .exists = ext4fs_exists,
132 .read = ext4_read_file,
133 #ifdef CONFIG_CMD_EXT4_WRITE
134 .write = ext4_write_file,
136 .write = fs_write_unsupported,
141 #ifdef CONFIG_SANDBOX
143 .fstype = FS_TYPE_SANDBOX,
144 .null_dev_desc_ok = true,
145 .probe = sandbox_fs_set_blk_dev,
146 .close = sandbox_fs_close,
148 .exists = sandbox_fs_exists,
149 .size = sandbox_fs_size,
150 .read = fs_read_sandbox,
151 .write = fs_write_sandbox,
152 .uuid = fs_uuid_unsupported,
156 .fstype = FS_TYPE_ANY,
157 .null_dev_desc_ok = true,
158 .probe = fs_probe_unsupported,
159 .close = fs_close_unsupported,
160 .ls = fs_ls_unsupported,
161 .exists = fs_exists_unsupported,
162 .size = fs_size_unsupported,
163 .read = fs_read_unsupported,
164 .write = fs_write_unsupported,
165 .uuid = fs_uuid_unsupported,
169 static struct fstype_info *fs_get_info(int fstype)
171 struct fstype_info *info;
174 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes) - 1; i++, info++) {
175 if (fstype == info->fstype)
179 /* Return the 'unsupported' sentinel */
183 int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
185 struct fstype_info *info;
187 #ifdef CONFIG_NEEDS_MANUAL_RELOC
188 static int relocated;
191 for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
193 info->probe += gd->reloc_off;
194 info->close += gd->reloc_off;
195 info->ls += gd->reloc_off;
196 info->read += gd->reloc_off;
197 info->write += gd->reloc_off;
203 part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc,
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)
213 if (!fs_dev_desc && !info->null_dev_desc_ok)
216 if (!info->probe(fs_dev_desc, &fs_partition)) {
217 fs_type = info->fstype;
225 static void fs_close(void)
227 struct fstype_info *info = fs_get_info(fs_type);
231 fs_type = FS_TYPE_ANY;
234 int fs_uuid(char *uuid_str)
236 struct fstype_info *info = fs_get_info(fs_type);
238 return info->uuid(uuid_str);
241 int fs_ls(const char *dirname)
245 struct fstype_info *info = fs_get_info(fs_type);
247 ret = info->ls(dirname);
249 fs_type = FS_TYPE_ANY;
255 int fs_exists(const char *filename)
259 struct fstype_info *info = fs_get_info(fs_type);
261 ret = info->exists(filename);
268 int fs_size(const char *filename, loff_t *size)
272 struct fstype_info *info = fs_get_info(fs_type);
274 ret = info->size(filename, size);
281 int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
284 struct fstype_info *info = fs_get_info(fs_type);
289 * We don't actually know how many bytes are being read, since len==0
290 * means read the whole file.
292 buf = map_sysmem(addr, len);
293 ret = info->read(filename, buf, offset, len, actread);
296 /* If we requested a specific number of bytes, check we got it */
297 if (ret == 0 && len && *actread != len) {
298 printf("** Unable to read file %s **\n", filename);
306 int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
309 struct fstype_info *info = fs_get_info(fs_type);
313 buf = map_sysmem(addr, len);
314 ret = info->write(filename, buf, offset, len, actwrite);
317 if (ret < 0 && len != *actwrite) {
318 printf("** Unable to write file %s **\n", filename);
326 int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
332 return CMD_RET_USAGE;
334 if (fs_set_blk_dev(argv[1], argv[2], fstype))
337 if (fs_size(argv[3], &size) < 0)
338 return CMD_RET_FAILURE;
340 setenv_hex("filesize", size);
345 int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
349 const char *addr_str;
350 const char *filename;
359 return CMD_RET_USAGE;
361 return CMD_RET_USAGE;
363 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
367 addr = simple_strtoul(argv[3], &ep, 16);
368 if (ep == argv[3] || *ep != '\0')
369 return CMD_RET_USAGE;
371 addr_str = getenv("loadaddr");
372 if (addr_str != NULL)
373 addr = simple_strtoul(addr_str, NULL, 16);
375 addr = CONFIG_SYS_LOAD_ADDR;
380 filename = getenv("bootfile");
382 puts("** No boot file defined **\n");
387 bytes = simple_strtoul(argv[5], NULL, 16);
391 pos = simple_strtoul(argv[6], NULL, 16);
396 ret = fs_read(filename, addr, pos, bytes, &len_read);
397 time = get_timer(time);
401 printf("%llu bytes read in %lu ms", len_read, time);
404 print_size(div_u64(len_read, time) * 1000, "/s");
409 setenv_hex("filesize", len_read);
414 int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
418 return CMD_RET_USAGE;
420 return CMD_RET_USAGE;
422 if (fs_set_blk_dev(argv[1], (argc >= 3) ? argv[2] : NULL, fstype))
425 if (fs_ls(argc >= 4 ? argv[3] : "/"))
431 int file_exists(const char *dev_type, const char *dev_part, const char *file,
434 if (fs_set_blk_dev(dev_type, dev_part, fstype))
437 return fs_exists(file);
440 int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
444 const char *filename;
451 if (argc < 6 || argc > 7)
452 return CMD_RET_USAGE;
454 if (fs_set_blk_dev(argv[1], argv[2], fstype))
457 addr = simple_strtoul(argv[3], NULL, 16);
459 bytes = simple_strtoul(argv[5], NULL, 16);
461 pos = simple_strtoul(argv[6], NULL, 16);
466 ret = fs_write(filename, addr, pos, bytes, &len);
467 time = get_timer(time);
471 printf("%llu bytes written in %lu ms", len, time);
474 print_size(div_u64(len, time) * 1000, "/s");
482 int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
487 memset(uuid, 0, sizeof(uuid));
489 if (argc < 3 || argc > 4)
490 return CMD_RET_USAGE;
492 if (fs_set_blk_dev(argv[1], argv[2], fstype))
497 return CMD_RET_FAILURE;
500 setenv(argv[3], uuid);
502 printf("%s\n", uuid);
504 return CMD_RET_SUCCESS;