1 /*
2 * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
3 *
4 * Copyright (C) 2002-2007 Aleph One Ltd.
5 * for Toby Churchill Ltd and Brightstar Engineering
6 *
7 * Created by Charles Manning <charles@aleph1.co.uk>
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 /*
15 * yaffscfg.c The configuration for the "direct" use of yaffs.
16 *
17 * This is set up for u-boot.
18 *
19 * This version now uses the ydevconfig mechanism to set up partitions.
20 */
21
22 #include <common.h>
23 #include <div64.h>
24 #include <malloc.h>
25
26 #include <config.h>
27 #include "nand.h"
28 #include "yaffscfg.h"
29 #include "yaffsfs.h"
30 #include "yaffs_packedtags2.h"
31 #include "yaffs_mtdif.h"
32 #include "yaffs_mtdif2.h"
33 #if 0
34 #include <errno.h>
35 #else
36 #include "malloc.h"
37 #endif
38 #include <linux/mtd/rawnand.h>
39
40 unsigned yaffs_trace_mask = 0x0; /* Disable logging */
41 static int yaffs_errno;
42
43
yaffs_bug_fn(const char * fn,int n)44 void yaffs_bug_fn(const char *fn, int n)
45 {
46 printf("yaffs bug at %s:%d\n", fn, n);
47 }
48
yaffsfs_malloc(size_t x)49 void *yaffsfs_malloc(size_t x)
50 {
51 return malloc(x);
52 }
53
yaffsfs_free(void * x)54 void yaffsfs_free(void *x)
55 {
56 free(x);
57 }
58
yaffsfs_SetError(int err)59 void yaffsfs_SetError(int err)
60 {
61 yaffs_errno = err;
62 }
63
yaffsfs_GetLastError(void)64 int yaffsfs_GetLastError(void)
65 {
66 return yaffs_errno;
67 }
68
69
yaffsfs_GetError(void)70 int yaffsfs_GetError(void)
71 {
72 return yaffs_errno;
73 }
74
yaffsfs_Lock(void)75 void yaffsfs_Lock(void)
76 {
77 }
78
yaffsfs_Unlock(void)79 void yaffsfs_Unlock(void)
80 {
81 }
82
yaffsfs_CurrentTime(void)83 __u32 yaffsfs_CurrentTime(void)
84 {
85 return 0;
86 }
87
yaffs_malloc(size_t size)88 void *yaffs_malloc(size_t size)
89 {
90 return malloc(size);
91 }
92
yaffs_free(void * ptr)93 void yaffs_free(void *ptr)
94 {
95 free(ptr);
96 }
97
yaffsfs_LocalInitialisation(void)98 void yaffsfs_LocalInitialisation(void)
99 {
100 /* No locking used */
101 }
102
103
yaffs_file_type_str(struct yaffs_stat * stat)104 static const char *yaffs_file_type_str(struct yaffs_stat *stat)
105 {
106 switch (stat->st_mode & S_IFMT) {
107 case S_IFREG: return "regular file";
108 case S_IFDIR: return "directory";
109 case S_IFLNK: return "symlink";
110 default: return "unknown";
111 }
112 }
113
yaffs_error_str(void)114 static const char *yaffs_error_str(void)
115 {
116 int error = yaffsfs_GetLastError();
117
118 if (error < 0)
119 error = -error;
120
121 switch (error) {
122 case EBUSY: return "Busy";
123 case ENODEV: return "No such device";
124 case EINVAL: return "Invalid parameter";
125 case ENFILE: return "Too many open files";
126 case EBADF: return "Bad handle";
127 case EACCES: return "Wrong permissions";
128 case EXDEV: return "Not on same device";
129 case ENOENT: return "No such entry";
130 case ENOSPC: return "Device full";
131 case EROFS: return "Read only file system";
132 case ERANGE: return "Range error";
133 case ENOTEMPTY: return "Not empty";
134 case ENAMETOOLONG: return "Name too long";
135 case ENOMEM: return "Out of memory";
136 case EFAULT: return "Fault";
137 case EEXIST: return "Name exists";
138 case ENOTDIR: return "Not a directory";
139 case EISDIR: return "Not permitted on a directory";
140 case ELOOP: return "Symlink loop";
141 case 0: return "No error";
142 default: return "Unknown error";
143 }
144 }
145
cmd_yaffs_tracemask(unsigned set,unsigned mask)146 void cmd_yaffs_tracemask(unsigned set, unsigned mask)
147 {
148 if (set)
149 yaffs_trace_mask = mask;
150
151 printf("yaffs trace mask: %08x\n", yaffs_trace_mask);
152 }
153
yaffs_regions_overlap(int a,int b,int x,int y)154 static int yaffs_regions_overlap(int a, int b, int x, int y)
155 {
156 return (a <= x && x <= b) ||
157 (a <= y && y <= b) ||
158 (x <= a && a <= y) ||
159 (x <= b && b <= y);
160 }
161
cmd_yaffs_devconfig(char * _mp,int flash_dev,int start_block,int end_block)162 void cmd_yaffs_devconfig(char *_mp, int flash_dev,
163 int start_block, int end_block)
164 {
165 struct mtd_info *mtd = NULL;
166 struct yaffs_dev *dev = NULL;
167 struct yaffs_dev *chk;
168 char *mp = NULL;
169 struct nand_chip *chip;
170
171 mtd = get_nand_dev_by_index(flash_dev);
172 if (!mtd) {
173 pr_err("\nno NAND devices available\n");
174 return;
175 }
176
177 dev = calloc(1, sizeof(*dev));
178 mp = strdup(_mp);
179
180 if (!dev || !mp) {
181 /* Alloc error */
182 printf("Failed to allocate memory\n");
183 goto err;
184 }
185
186 if (flash_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
187 printf("Flash device invalid\n");
188 goto err;
189 }
190
191 if (end_block == 0)
192 end_block = lldiv(mtd->size, mtd->erasesize - 1);
193
194 if (end_block < start_block) {
195 printf("Bad start/end\n");
196 goto err;
197 }
198
199 chip = mtd_to_nand(mtd);
200
201 /* Check for any conflicts */
202 yaffs_dev_rewind();
203 while (1) {
204 chk = yaffs_next_dev();
205 if (!chk)
206 break;
207 if (strcmp(chk->param.name, mp) == 0) {
208 printf("Mount point name already used\n");
209 goto err;
210 }
211 if (chk->driver_context == mtd &&
212 yaffs_regions_overlap(
213 chk->param.start_block, chk->param.end_block,
214 start_block, end_block)) {
215 printf("Region overlaps with partition %s\n",
216 chk->param.name);
217 goto err;
218 }
219
220 }
221
222 /* Seems sane, so configure */
223 memset(dev, 0, sizeof(*dev));
224 dev->param.name = mp;
225 dev->driver_context = mtd;
226 dev->param.start_block = start_block;
227 dev->param.end_block = end_block;
228 dev->param.chunks_per_block = mtd->erasesize / mtd->writesize;
229 dev->param.total_bytes_per_chunk = mtd->writesize;
230 dev->param.is_yaffs2 = 1;
231 dev->param.use_nand_ecc = 1;
232 dev->param.n_reserved_blocks = 5;
233 if (chip->ecc.layout->oobavail < sizeof(struct yaffs_packed_tags2))
234 dev->param.inband_tags = 1;
235 dev->param.n_caches = 10;
236 dev->param.write_chunk_tags_fn = nandmtd2_write_chunk_tags;
237 dev->param.read_chunk_tags_fn = nandmtd2_read_chunk_tags;
238 dev->param.erase_fn = nandmtd_EraseBlockInNAND;
239 dev->param.initialise_flash_fn = nandmtd_InitialiseNAND;
240 dev->param.bad_block_fn = nandmtd2_MarkNANDBlockBad;
241 dev->param.query_block_fn = nandmtd2_QueryNANDBlock;
242
243 yaffs_add_device(dev);
244
245 printf("Configures yaffs mount %s: dev %d start block %d, end block %d %s\n",
246 mp, flash_dev, start_block, end_block,
247 dev->param.inband_tags ? "using inband tags" : "");
248 return;
249
250 err:
251 free(dev);
252 free(mp);
253 }
254
cmd_yaffs_dev_ls(void)255 void cmd_yaffs_dev_ls(void)
256 {
257 struct yaffs_dev *dev;
258 int flash_dev;
259 int free_space;
260
261 yaffs_dev_rewind();
262
263 while (1) {
264 dev = yaffs_next_dev();
265 if (!dev)
266 return;
267 flash_dev = nand_mtd_to_devnum(dev->driver_context);
268 printf("%-10s %5d 0x%05x 0x%05x %s",
269 dev->param.name, flash_dev,
270 dev->param.start_block, dev->param.end_block,
271 dev->param.inband_tags ? "using inband tags, " : "");
272
273 free_space = yaffs_freespace(dev->param.name);
274 if (free_space < 0)
275 printf("not mounted\n");
276 else
277 printf("free 0x%x\n", free_space);
278
279 }
280 }
281
make_a_file(char * yaffsName,char bval,int sizeOfFile)282 void make_a_file(char *yaffsName, char bval, int sizeOfFile)
283 {
284 int outh;
285 int i;
286 unsigned char buffer[100];
287
288 outh = yaffs_open(yaffsName,
289 O_CREAT | O_RDWR | O_TRUNC,
290 S_IREAD | S_IWRITE);
291 if (outh < 0) {
292 printf("Error opening file: %d. %s\n", outh, yaffs_error_str());
293 return;
294 }
295
296 memset(buffer, bval, 100);
297
298 do {
299 i = sizeOfFile;
300 if (i > 100)
301 i = 100;
302 sizeOfFile -= i;
303
304 yaffs_write(outh, buffer, i);
305
306 } while (sizeOfFile > 0);
307
308
309 yaffs_close(outh);
310 }
311
read_a_file(char * fn)312 void read_a_file(char *fn)
313 {
314 int h;
315 int i = 0;
316 unsigned char b;
317
318 h = yaffs_open(fn, O_RDWR, 0);
319 if (h < 0) {
320 printf("File not found\n");
321 return;
322 }
323
324 while (yaffs_read(h, &b, 1) > 0) {
325 printf("%02x ", b);
326 i++;
327 if (i > 32) {
328 printf("\n");
329 i = 0;
330 }
331 }
332 printf("\n");
333 yaffs_close(h);
334 }
335
cmd_yaffs_mount(char * mp)336 void cmd_yaffs_mount(char *mp)
337 {
338 int retval = yaffs_mount(mp);
339 if (retval < 0)
340 printf("Error mounting %s, return value: %d, %s\n", mp,
341 yaffsfs_GetError(), yaffs_error_str());
342 }
343
344
cmd_yaffs_umount(char * mp)345 void cmd_yaffs_umount(char *mp)
346 {
347 if (yaffs_unmount(mp) == -1)
348 printf("Error umounting %s, return value: %d, %s\n", mp,
349 yaffsfs_GetError(), yaffs_error_str());
350 }
351
cmd_yaffs_write_file(char * yaffsName,char bval,int sizeOfFile)352 void cmd_yaffs_write_file(char *yaffsName, char bval, int sizeOfFile)
353 {
354 make_a_file(yaffsName, bval, sizeOfFile);
355 }
356
357
cmd_yaffs_read_file(char * fn)358 void cmd_yaffs_read_file(char *fn)
359 {
360 read_a_file(fn);
361 }
362
363
cmd_yaffs_mread_file(char * fn,char * addr)364 void cmd_yaffs_mread_file(char *fn, char *addr)
365 {
366 int h;
367 struct yaffs_stat s;
368
369 yaffs_stat(fn, &s);
370
371 printf("Copy %s to 0x%p... ", fn, addr);
372 h = yaffs_open(fn, O_RDWR, 0);
373 if (h < 0) {
374 printf("File not found\n");
375 return;
376 }
377
378 yaffs_read(h, addr, (int)s.st_size);
379 printf("\t[DONE]\n");
380
381 yaffs_close(h);
382 }
383
384
cmd_yaffs_mwrite_file(char * fn,char * addr,int size)385 void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
386 {
387 int outh;
388
389 outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
390 if (outh < 0)
391 printf("Error opening file: %d, %s\n", outh, yaffs_error_str());
392
393 yaffs_write(outh, addr, size);
394
395 yaffs_close(outh);
396 }
397
398
cmd_yaffs_ls(const char * mountpt,int longlist)399 void cmd_yaffs_ls(const char *mountpt, int longlist)
400 {
401 int i;
402 yaffs_DIR *d;
403 struct yaffs_dirent *de;
404 struct yaffs_stat stat;
405 char tempstr[255];
406
407 d = yaffs_opendir(mountpt);
408
409 if (!d) {
410 printf("opendir failed, %s\n", yaffs_error_str());
411 return;
412 }
413
414 for (i = 0; (de = yaffs_readdir(d)) != NULL; i++) {
415 if (longlist) {
416 sprintf(tempstr, "%s/%s", mountpt, de->d_name);
417 yaffs_lstat(tempstr, &stat);
418 printf("%-25s\t%7ld",
419 de->d_name,
420 (long)stat.st_size);
421 printf(" %5d %s\n",
422 stat.st_ino,
423 yaffs_file_type_str(&stat));
424 } else {
425 printf("%s\n", de->d_name);
426 }
427 }
428
429 yaffs_closedir(d);
430 }
431
432
cmd_yaffs_mkdir(const char * dir)433 void cmd_yaffs_mkdir(const char *dir)
434 {
435 int retval = yaffs_mkdir(dir, 0);
436
437 if (retval < 0)
438 printf("yaffs_mkdir returning error: %d, %s\n",
439 retval, yaffs_error_str());
440 }
441
cmd_yaffs_rmdir(const char * dir)442 void cmd_yaffs_rmdir(const char *dir)
443 {
444 int retval = yaffs_rmdir(dir);
445
446 if (retval < 0)
447 printf("yaffs_rmdir returning error: %d, %s\n",
448 retval, yaffs_error_str());
449 }
450
cmd_yaffs_rm(const char * path)451 void cmd_yaffs_rm(const char *path)
452 {
453 int retval = yaffs_unlink(path);
454
455 if (retval < 0)
456 printf("yaffs_unlink returning error: %d, %s\n",
457 retval, yaffs_error_str());
458 }
459
cmd_yaffs_mv(const char * oldPath,const char * newPath)460 void cmd_yaffs_mv(const char *oldPath, const char *newPath)
461 {
462 int retval = yaffs_rename(newPath, oldPath);
463
464 if (retval < 0)
465 printf("yaffs_unlink returning error: %d, %s\n",
466 retval, yaffs_error_str());
467 }
468