xref: /openbmc/u-boot/fs/yaffs2/yaffs_uboot_glue.c (revision 5c8d14df) 
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 
24 #include <config.h>
25 #include "nand.h"
26 #include "yaffscfg.h"
27 #include "yaffsfs.h"
28 #include "yaffs_packedtags2.h"
29 #include "yaffs_mtdif.h"
30 #include "yaffs_mtdif2.h"
31 #if 0
32 #include <errno.h>
33 #else
34 #include "malloc.h"
35 #endif
36 
37 unsigned yaffs_trace_mask = 0x0; /* Disable logging */
38 static int yaffs_errno;
39 
40 
41 void yaffs_bug_fn(const char *fn, int n)
42 {
43 	printf("yaffs bug at %s:%d\n", fn, n);
44 }
45 
46 void *yaffsfs_malloc(size_t x)
47 {
48 	return malloc(x);
49 }
50 
51 void yaffsfs_free(void *x)
52 {
53 	free(x);
54 }
55 
56 void yaffsfs_SetError(int err)
57 {
58 	yaffs_errno = err;
59 }
60 
61 int yaffsfs_GetLastError(void)
62 {
63 	return yaffs_errno;
64 }
65 
66 
67 int yaffsfs_GetError(void)
68 {
69 	return yaffs_errno;
70 }
71 
72 void yaffsfs_Lock(void)
73 {
74 }
75 
76 void yaffsfs_Unlock(void)
77 {
78 }
79 
80 __u32 yaffsfs_CurrentTime(void)
81 {
82 	return 0;
83 }
84 
85 void *yaffs_malloc(size_t size)
86 {
87 	return malloc(size);
88 }
89 
90 void yaffs_free(void *ptr)
91 {
92 	free(ptr);
93 }
94 
95 void yaffsfs_LocalInitialisation(void)
96 {
97 	/* No locking used */
98 }
99 
100 
101 static const char *yaffs_file_type_str(struct yaffs_stat *stat)
102 {
103 	switch (stat->st_mode & S_IFMT) {
104 	case S_IFREG: return "regular file";
105 	case S_IFDIR: return "directory";
106 	case S_IFLNK: return "symlink";
107 	default: return "unknown";
108 	}
109 }
110 
111 static const char *yaffs_error_str(void)
112 {
113 	int error = yaffsfs_GetLastError();
114 
115 	if (error < 0)
116 		error = -error;
117 
118 	switch (error) {
119 	case EBUSY: return "Busy";
120 	case ENODEV: return "No such device";
121 	case EINVAL: return "Invalid parameter";
122 	case ENFILE: return "Too many open files";
123 	case EBADF:  return "Bad handle";
124 	case EACCES: return "Wrong permissions";
125 	case EXDEV:  return "Not on same device";
126 	case ENOENT: return "No such entry";
127 	case ENOSPC: return "Device full";
128 	case EROFS:  return "Read only file system";
129 	case ERANGE: return "Range error";
130 	case ENOTEMPTY: return "Not empty";
131 	case ENAMETOOLONG: return "Name too long";
132 	case ENOMEM: return "Out of memory";
133 	case EFAULT: return "Fault";
134 	case EEXIST: return "Name exists";
135 	case ENOTDIR: return "Not a directory";
136 	case EISDIR: return "Not permitted on a directory";
137 	case ELOOP:  return "Symlink loop";
138 	case 0: return "No error";
139 	default: return "Unknown error";
140 	}
141 }
142 
143 extern nand_info_t nand_info[];
144 
145 void cmd_yaffs_tracemask(unsigned set, unsigned mask)
146 {
147 	if (set)
148 		yaffs_trace_mask = mask;
149 
150 	printf("yaffs trace mask: %08x\n", yaffs_trace_mask);
151 }
152 
153 static int yaffs_regions_overlap(int a, int b, int x, int y)
154 {
155 	return	(a <= x && x <= b) ||
156 		(a <= y && y <= b) ||
157 		(x <= a && a <= y) ||
158 		(x <= b && b <= y);
159 }
160 
161 void cmd_yaffs_devconfig(char *_mp, int flash_dev,
162 			int start_block, int end_block)
163 {
164 	struct mtd_info *mtd = NULL;
165 	struct yaffs_dev *dev = NULL;
166 	struct yaffs_dev *chk;
167 	char *mp = NULL;
168 	struct nand_chip *chip;
169 
170 	dev = calloc(1, sizeof(*dev));
171 	mp = strdup(_mp);
172 
173 	mtd = &nand_info[flash_dev];
174 
175 	if (!dev || !mp) {
176 		/* Alloc error */
177 		printf("Failed to allocate memory\n");
178 		goto err;
179 	}
180 
181 	if (flash_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
182 		printf("Flash device invalid\n");
183 		goto err;
184 	}
185 
186 	if (end_block == 0)
187 		end_block = mtd->size / mtd->erasesize - 1;
188 
189 	if (end_block < start_block) {
190 		printf("Bad start/end\n");
191 		goto err;
192 	}
193 
194 	chip =  mtd->priv;
195 
196 	/* Check for any conflicts */
197 	yaffs_dev_rewind();
198 	while (1) {
199 		chk = yaffs_next_dev();
200 		if (!chk)
201 			break;
202 		if (strcmp(chk->param.name, mp) == 0) {
203 			printf("Mount point name already used\n");
204 			goto err;
205 		}
206 		if (chk->driver_context == mtd &&
207 			yaffs_regions_overlap(
208 				chk->param.start_block, chk->param.end_block,
209 				start_block, end_block)) {
210 			printf("Region overlaps with partition %s\n",
211 				chk->param.name);
212 			goto err;
213 		}
214 
215 	}
216 
217 	/* Seems sane, so configure */
218 	memset(dev, 0, sizeof(*dev));
219 	dev->param.name = mp;
220 	dev->driver_context = mtd;
221 	dev->param.start_block = start_block;
222 	dev->param.end_block = end_block;
223 	dev->param.chunks_per_block = mtd->erasesize / mtd->writesize;
224 	dev->param.total_bytes_per_chunk = mtd->writesize;
225 	dev->param.is_yaffs2 = 1;
226 	dev->param.use_nand_ecc = 1;
227 	dev->param.n_reserved_blocks = 5;
228 	if (chip->ecc.layout->oobavail < sizeof(struct yaffs_packed_tags2))
229 		dev->param.inband_tags = 1;
230 	dev->param.n_caches = 10;
231 	dev->param.write_chunk_tags_fn = nandmtd2_write_chunk_tags;
232 	dev->param.read_chunk_tags_fn = nandmtd2_read_chunk_tags;
233 	dev->param.erase_fn = nandmtd_EraseBlockInNAND;
234 	dev->param.initialise_flash_fn = nandmtd_InitialiseNAND;
235 	dev->param.bad_block_fn = nandmtd2_MarkNANDBlockBad;
236 	dev->param.query_block_fn = nandmtd2_QueryNANDBlock;
237 
238 	yaffs_add_device(dev);
239 
240 	printf("Configures yaffs mount %s: dev %d start block %d, end block %d %s\n",
241 		mp, flash_dev, start_block, end_block,
242 		dev->param.inband_tags ? "using inband tags" : "");
243 	return;
244 
245 err:
246 	free(dev);
247 	free(mp);
248 }
249 
250 void cmd_yaffs_dev_ls(void)
251 {
252 	struct yaffs_dev *dev;
253 	int flash_dev;
254 	int free_space;
255 
256 	yaffs_dev_rewind();
257 
258 	while (1) {
259 		dev = yaffs_next_dev();
260 		if (!dev)
261 			return;
262 		flash_dev =
263 			((unsigned) dev->driver_context - (unsigned) nand_info)/
264 				sizeof(nand_info[0]);
265 		printf("%-10s %5d 0x%05x 0x%05x %s",
266 			dev->param.name, flash_dev,
267 			dev->param.start_block, dev->param.end_block,
268 			dev->param.inband_tags ? "using inband tags, " : "");
269 
270 		free_space = yaffs_freespace(dev->param.name);
271 		if (free_space < 0)
272 			printf("not mounted\n");
273 		else
274 			printf("free 0x%x\n", free_space);
275 
276 	}
277 }
278 
279 void make_a_file(char *yaffsName, char bval, int sizeOfFile)
280 {
281 	int outh;
282 	int i;
283 	unsigned char buffer[100];
284 
285 	outh = yaffs_open(yaffsName,
286 				O_CREAT | O_RDWR | O_TRUNC,
287 				S_IREAD | S_IWRITE);
288 	if (outh < 0) {
289 		printf("Error opening file: %d. %s\n", outh, yaffs_error_str());
290 		return;
291 	}
292 
293 	memset(buffer, bval, 100);
294 
295 	do {
296 		i = sizeOfFile;
297 		if (i > 100)
298 			i = 100;
299 		sizeOfFile -= i;
300 
301 		yaffs_write(outh, buffer, i);
302 
303 	} while (sizeOfFile > 0);
304 
305 
306 	yaffs_close(outh);
307 }
308 
309 void read_a_file(char *fn)
310 {
311 	int h;
312 	int i = 0;
313 	unsigned char b;
314 
315 	h = yaffs_open(fn, O_RDWR, 0);
316 	if (h < 0) {
317 		printf("File not found\n");
318 		return;
319 	}
320 
321 	while (yaffs_read(h, &b, 1) > 0) {
322 		printf("%02x ", b);
323 		i++;
324 		if (i > 32) {
325 			printf("\n");
326 			i = 0;;
327 		}
328 	}
329 	printf("\n");
330 	yaffs_close(h);
331 }
332 
333 void cmd_yaffs_mount(char *mp)
334 {
335 	int retval = yaffs_mount(mp);
336 	if (retval < 0)
337 		printf("Error mounting %s, return value: %d, %s\n", mp,
338 			yaffsfs_GetError(), yaffs_error_str());
339 }
340 
341 
342 void cmd_yaffs_umount(char *mp)
343 {
344 	if (yaffs_unmount(mp) == -1)
345 		printf("Error umounting %s, return value: %d, %s\n", mp,
346 			yaffsfs_GetError(), yaffs_error_str());
347 }
348 
349 void cmd_yaffs_write_file(char *yaffsName, char bval, int sizeOfFile)
350 {
351 	make_a_file(yaffsName, bval, sizeOfFile);
352 }
353 
354 
355 void cmd_yaffs_read_file(char *fn)
356 {
357 	read_a_file(fn);
358 }
359 
360 
361 void cmd_yaffs_mread_file(char *fn, char *addr)
362 {
363 	int h;
364 	struct yaffs_stat s;
365 
366 	yaffs_stat(fn, &s);
367 
368 	printf("Copy %s to 0x%p... ", fn, addr);
369 	h = yaffs_open(fn, O_RDWR, 0);
370 	if (h < 0) {
371 		printf("File not found\n");
372 		return;
373 	}
374 
375 	yaffs_read(h, addr, (int)s.st_size);
376 	printf("\t[DONE]\n");
377 
378 	yaffs_close(h);
379 }
380 
381 
382 void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
383 {
384 	int outh;
385 
386 	outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
387 	if (outh < 0)
388 		printf("Error opening file: %d, %s\n", outh, yaffs_error_str());
389 
390 	yaffs_write(outh, addr, size);
391 
392 	yaffs_close(outh);
393 }
394 
395 
396 void cmd_yaffs_ls(const char *mountpt, int longlist)
397 {
398 	int i;
399 	yaffs_DIR *d;
400 	struct yaffs_dirent *de;
401 	struct yaffs_stat stat;
402 	char tempstr[255];
403 
404 	d = yaffs_opendir(mountpt);
405 
406 	if (!d) {
407 		printf("opendir failed, %s\n", yaffs_error_str());
408 		return;
409 	}
410 
411 	for (i = 0; (de = yaffs_readdir(d)) != NULL; i++) {
412 		if (longlist) {
413 			sprintf(tempstr, "%s/%s", mountpt, de->d_name);
414 			yaffs_lstat(tempstr, &stat);
415 			printf("%-25s\t%7ld",
416 					de->d_name,
417 					(long)stat.st_size);
418 			printf(" %5d %s\n",
419 					stat.st_ino,
420 					yaffs_file_type_str(&stat));
421 		} else {
422 			printf("%s\n", de->d_name);
423 		}
424 	}
425 
426 	yaffs_closedir(d);
427 }
428 
429 
430 void cmd_yaffs_mkdir(const char *dir)
431 {
432 	int retval = yaffs_mkdir(dir, 0);
433 
434 	if (retval < 0)
435 		printf("yaffs_mkdir returning error: %d, %s\n",
436 			retval, yaffs_error_str());
437 }
438 
439 void cmd_yaffs_rmdir(const char *dir)
440 {
441 	int retval = yaffs_rmdir(dir);
442 
443 	if (retval < 0)
444 		printf("yaffs_rmdir returning error: %d, %s\n",
445 			retval, yaffs_error_str());
446 }
447 
448 void cmd_yaffs_rm(const char *path)
449 {
450 	int retval = yaffs_unlink(path);
451 
452 	if (retval < 0)
453 		printf("yaffs_unlink returning error: %d, %s\n",
454 			retval, yaffs_error_str());
455 }
456 
457 void cmd_yaffs_mv(const char *oldPath, const char *newPath)
458 {
459 	int retval = yaffs_rename(newPath, oldPath);
460 
461 	if (retval < 0)
462 		printf("yaffs_unlink returning error: %d, %s\n",
463 			retval, yaffs_error_str());
464 }
465