summaryrefslogtreecommitdiffstats
path: root/fs/yaffs2/yaffs_uboot_glue.c
blob: 50000a135b54f229e4aa914939ab6c554bdab0c4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
/*
 * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
 *
 * Copyright (C) 2002-2007 Aleph One Ltd.
 *   for Toby Churchill Ltd and Brightstar Engineering
 *
 * Created by Charles Manning <charles@aleph1.co.uk>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

/*
 * yaffscfg.c  The configuration for the "direct" use of yaffs.
 *
 * This is set up for u-boot.
 *
 * This version now uses the ydevconfig mechanism to set up partitions.
 */

#include <common.h>
#include <div64.h>

#include <config.h>
#include "nand.h"
#include "yaffscfg.h"
#include "yaffsfs.h"
#include "yaffs_packedtags2.h"
#include "yaffs_mtdif.h"
#include "yaffs_mtdif2.h"
#if 0
#include <errno.h>
#else
#include "malloc.h"
#endif

unsigned yaffs_trace_mask = 0x0; /* Disable logging */
static int yaffs_errno;


void yaffs_bug_fn(const char *fn, int n)
{
	printf("yaffs bug at %s:%d\n", fn, n);
}

void *yaffsfs_malloc(size_t x)
{
	return malloc(x);
}

void yaffsfs_free(void *x)
{
	free(x);
}

void yaffsfs_SetError(int err)
{
	yaffs_errno = err;
}

int yaffsfs_GetLastError(void)
{
	return yaffs_errno;
}


int yaffsfs_GetError(void)
{
	return yaffs_errno;
}

void yaffsfs_Lock(void)
{
}

void yaffsfs_Unlock(void)
{
}

__u32 yaffsfs_CurrentTime(void)
{
	return 0;
}

void *yaffs_malloc(size_t size)
{
	return malloc(size);
}

void yaffs_free(void *ptr)
{
	free(ptr);
}

void yaffsfs_LocalInitialisation(void)
{
	/* No locking used */
}


static const char *yaffs_file_type_str(struct yaffs_stat *stat)
{
	switch (stat->st_mode & S_IFMT) {
	case S_IFREG: return "regular file";
	case S_IFDIR: return "directory";
	case S_IFLNK: return "symlink";
	default: return "unknown";
	}
}

static const char *yaffs_error_str(void)
{
	int error = yaffsfs_GetLastError();

	if (error < 0)
		error = -error;

	switch (error) {
	case EBUSY: return "Busy";
	case ENODEV: return "No such device";
	case EINVAL: return "Invalid parameter";
	case ENFILE: return "Too many open files";
	case EBADF:  return "Bad handle";
	case EACCES: return "Wrong permissions";
	case EXDEV:  return "Not on same device";
	case ENOENT: return "No such entry";
	case ENOSPC: return "Device full";
	case EROFS:  return "Read only file system";
	case ERANGE: return "Range error";
	case ENOTEMPTY: return "Not empty";
	case ENAMETOOLONG: return "Name too long";
	case ENOMEM: return "Out of memory";
	case EFAULT: return "Fault";
	case EEXIST: return "Name exists";
	case ENOTDIR: return "Not a directory";
	case EISDIR: return "Not permitted on a directory";
	case ELOOP:  return "Symlink loop";
	case 0: return "No error";
	default: return "Unknown error";
	}
}

extern nand_info_t nand_info[];

void cmd_yaffs_tracemask(unsigned set, unsigned mask)
{
	if (set)
		yaffs_trace_mask = mask;

	printf("yaffs trace mask: %08x\n", yaffs_trace_mask);
}

static int yaffs_regions_overlap(int a, int b, int x, int y)
{
	return	(a <= x && x <= b) ||
		(a <= y && y <= b) ||
		(x <= a && a <= y) ||
		(x <= b && b <= y);
}

void cmd_yaffs_devconfig(char *_mp, int flash_dev,
			int start_block, int end_block)
{
	struct mtd_info *mtd = NULL;
	struct yaffs_dev *dev = NULL;
	struct yaffs_dev *chk;
	char *mp = NULL;
	struct nand_chip *chip;

	dev = calloc(1, sizeof(*dev));
	mp = strdup(_mp);

	mtd = &nand_info[flash_dev];

	if (!dev || !mp) {
		/* Alloc error */
		printf("Failed to allocate memory\n");
		goto err;
	}

	if (flash_dev >= CONFIG_SYS_MAX_NAND_DEVICE) {
		printf("Flash device invalid\n");
		goto err;
	}

	if (end_block == 0)
		end_block = lldiv(mtd->size, mtd->erasesize - 1);

	if (end_block < start_block) {
		printf("Bad start/end\n");
		goto err;
	}

	chip =  mtd->priv;

	/* Check for any conflicts */
	yaffs_dev_rewind();
	while (1) {
		chk = yaffs_next_dev();
		if (!chk)
			break;
		if (strcmp(chk->param.name, mp) == 0) {
			printf("Mount point name already used\n");
			goto err;
		}
		if (chk->driver_context == mtd &&
			yaffs_regions_overlap(
				chk->param.start_block, chk->param.end_block,
				start_block, end_block)) {
			printf("Region overlaps with partition %s\n",
				chk->param.name);
			goto err;
		}

	}

	/* Seems sane, so configure */
	memset(dev, 0, sizeof(*dev));
	dev->param.name = mp;
	dev->driver_context = mtd;
	dev->param.start_block = start_block;
	dev->param.end_block = end_block;
	dev->param.chunks_per_block = mtd->erasesize / mtd->writesize;
	dev->param.total_bytes_per_chunk = mtd->writesize;
	dev->param.is_yaffs2 = 1;
	dev->param.use_nand_ecc = 1;
	dev->param.n_reserved_blocks = 5;
	if (chip->ecc.layout->oobavail < sizeof(struct yaffs_packed_tags2))
		dev->param.inband_tags = 1;
	dev->param.n_caches = 10;
	dev->param.write_chunk_tags_fn = nandmtd2_write_chunk_tags;
	dev->param.read_chunk_tags_fn = nandmtd2_read_chunk_tags;
	dev->param.erase_fn = nandmtd_EraseBlockInNAND;
	dev->param.initialise_flash_fn = nandmtd_InitialiseNAND;
	dev->param.bad_block_fn = nandmtd2_MarkNANDBlockBad;
	dev->param.query_block_fn = nandmtd2_QueryNANDBlock;

	yaffs_add_device(dev);

	printf("Configures yaffs mount %s: dev %d start block %d, end block %d %s\n",
		mp, flash_dev, start_block, end_block,
		dev->param.inband_tags ? "using inband tags" : "");
	return;

err:
	free(dev);
	free(mp);
}

void cmd_yaffs_dev_ls(void)
{
	struct yaffs_dev *dev;
	int flash_dev;
	int free_space;

	yaffs_dev_rewind();

	while (1) {
		dev = yaffs_next_dev();
		if (!dev)
			return;
		flash_dev =
			((unsigned) dev->driver_context - (unsigned) nand_info)/
				sizeof(nand_info[0]);
		printf("%-10s %5d 0x%05x 0x%05x %s",
			dev->param.name, flash_dev,
			dev->param.start_block, dev->param.end_block,
			dev->param.inband_tags ? "using inband tags, " : "");

		free_space = yaffs_freespace(dev->param.name);
		if (free_space < 0)
			printf("not mounted\n");
		else
			printf("free 0x%x\n", free_space);

	}
}

void make_a_file(char *yaffsName, char bval, int sizeOfFile)
{
	int outh;
	int i;
	unsigned char buffer[100];

	outh = yaffs_open(yaffsName,
				O_CREAT | O_RDWR | O_TRUNC,
				S_IREAD | S_IWRITE);
	if (outh < 0) {
		printf("Error opening file: %d. %s\n", outh, yaffs_error_str());
		return;
	}

	memset(buffer, bval, 100);

	do {
		i = sizeOfFile;
		if (i > 100)
			i = 100;
		sizeOfFile -= i;

		yaffs_write(outh, buffer, i);

	} while (sizeOfFile > 0);


	yaffs_close(outh);
}

void read_a_file(char *fn)
{
	int h;
	int i = 0;
	unsigned char b;

	h = yaffs_open(fn, O_RDWR, 0);
	if (h < 0) {
		printf("File not found\n");
		return;
	}

	while (yaffs_read(h, &b, 1) > 0) {
		printf("%02x ", b);
		i++;
		if (i > 32) {
			printf("\n");
			i = 0;;
		}
	}
	printf("\n");
	yaffs_close(h);
}

void cmd_yaffs_mount(char *mp)
{
	int retval = yaffs_mount(mp);
	if (retval < 0)
		printf("Error mounting %s, return value: %d, %s\n", mp,
			yaffsfs_GetError(), yaffs_error_str());
}


void cmd_yaffs_umount(char *mp)
{
	if (yaffs_unmount(mp) == -1)
		printf("Error umounting %s, return value: %d, %s\n", mp,
			yaffsfs_GetError(), yaffs_error_str());
}

void cmd_yaffs_write_file(char *yaffsName, char bval, int sizeOfFile)
{
	make_a_file(yaffsName, bval, sizeOfFile);
}


void cmd_yaffs_read_file(char *fn)
{
	read_a_file(fn);
}


void cmd_yaffs_mread_file(char *fn, char *addr)
{
	int h;
	struct yaffs_stat s;

	yaffs_stat(fn, &s);

	printf("Copy %s to 0x%p... ", fn, addr);
	h = yaffs_open(fn, O_RDWR, 0);
	if (h < 0) {
		printf("File not found\n");
		return;
	}

	yaffs_read(h, addr, (int)s.st_size);
	printf("\t[DONE]\n");

	yaffs_close(h);
}


void cmd_yaffs_mwrite_file(char *fn, char *addr, int size)
{
	int outh;

	outh = yaffs_open(fn, O_CREAT | O_RDWR | O_TRUNC, S_IREAD | S_IWRITE);
	if (outh < 0)
		printf("Error opening file: %d, %s\n", outh, yaffs_error_str());

	yaffs_write(outh, addr, size);

	yaffs_close(outh);
}


void cmd_yaffs_ls(const char *mountpt, int longlist)
{
	int i;
	yaffs_DIR *d;
	struct yaffs_dirent *de;
	struct yaffs_stat stat;
	char tempstr[255];

	d = yaffs_opendir(mountpt);

	if (!d) {
		printf("opendir failed, %s\n", yaffs_error_str());
		return;
	}

	for (i = 0; (de = yaffs_readdir(d)) != NULL; i++) {
		if (longlist) {
			sprintf(tempstr, "%s/%s", mountpt, de->d_name);
			yaffs_lstat(tempstr, &stat);
			printf("%-25s\t%7ld",
					de->d_name,
					(long)stat.st_size);
			printf(" %5d %s\n",
					stat.st_ino,
					yaffs_file_type_str(&stat));
		} else {
			printf("%s\n", de->d_name);
		}
	}

	yaffs_closedir(d);
}


void cmd_yaffs_mkdir(const char *dir)
{
	int retval = yaffs_mkdir(dir, 0);

	if (retval < 0)
		printf("yaffs_mkdir returning error: %d, %s\n",
			retval, yaffs_error_str());
}

void cmd_yaffs_rmdir(const char *dir)
{
	int retval = yaffs_rmdir(dir);

	if (retval < 0)
		printf("yaffs_rmdir returning error: %d, %s\n",
			retval, yaffs_error_str());
}

void cmd_yaffs_rm(const char *path)
{
	int retval = yaffs_unlink(path);

	if (retval < 0)
		printf("yaffs_unlink returning error: %d, %s\n",
			retval, yaffs_error_str());
}

void cmd_yaffs_mv(const char *oldPath, const char *newPath)
{
	int retval = yaffs_rename(newPath, oldPath);

	if (retval < 0)
		printf("yaffs_unlink returning error: %d, %s\n",
			retval, yaffs_error_str());
}
OpenPOWER on IntegriCloud