aboutsummaryrefslogtreecommitdiff
path: root/ubi-utils/sort-me-out/bin2nand.c
blob: 83f50cc06699151771a0618937bbb165a50220a7 (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
/*
 * Copyright (c) International Business Machines Corp., 2007
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
 * the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * Author: Oliver Lohmann
 */

/*
 * Create a flashable NAND image from a binary image
 *
 * History:
 * 1.0 Initial release (tglx)
 * 1.1 Understands hex and dec input parameters (tglx)
 * 1.2 Generates separated OOB data, if needed. (oloh)
 * 1.3 Padds data/oob to a given size. (oloh)
 * 1.4 Removed argp because we want to use uClibc.
 * 1.5 Minor cleanup
 * 1.6 Written variable not initialized (-j did not work) (haver)
 * 1.7 Made NAND ECC layout configurable (haver)
 */

#include <unistd.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <getopt.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>

#include "error.h"
#include "config.h"
#include "nandecc.h"
#include "ecclayouts.h"

#define PROGRAM_VERSION "1.7"

#define ARRAY_SIZE(a)    (sizeof(a) / sizeof((a)[0]))

#define CHECK_ENDP(option, endp) do {			\
	if (*endp) {					\
		fprintf(stderr,				\
			"Parse error option \'%s\'. "	\
			"No correct numeric value.\n"	\
			, option);			\
		exit(EXIT_FAILURE);			\
	}						\
} while(0)

typedef enum action_t {
	ACT_NORMAL	    = 0x00000001,
} action_t;

#define PAGESIZE	2048
#define PADDING		   0 /* 0 means, do not adjust anything */
#define BUFSIZE		4096

static char doc[] = "\nVersion: " PROGRAM_VERSION "\n"
	"bin2nand - a tool for adding OOB information to a "
	"binary input file.\n";

static const char *optionsstr =
"  -c, --copyright          Print copyright informatoin.\n"
"  -j, --padding=<num>      Padding in Byte/Mi/ki. Default = no padding\n"
"  -l, --ecc-placement=<MTD,IBM> OOB placement scheme (default is IBM).\n"
"  -p, --pagesize=<num>     Pagesize in Byte/Mi/ki. Default = 2048\n"
"  -o, --output=<fname>     Output filename. Interleaved Data/OOB if\n"
"                           output-oob not specified.\n"
"  -q, --output-oob=<fname> Write OOB data in separate file.\n"
"  -?, --help               Give this help list\n"
"      --usage              Give a short usage message\n"
"  -V, --version            Print program version\n";

static const char *usage =
"Usage: bin2nand [-c?V] [-j <num>] [-p <num>] [-o <fname>] [-q <fname>]\n"
"            [--copyright] [--padding=<num>] [--pagesize=<num>]\n"
"            [--output=<fname>] [--output-oob=<fname>] [--help] [--usage]\n"
"            [--version]\n";

struct option long_options[] = {
	{ .name = "copyright", .has_arg = 0, .flag = NULL, .val = 'c' },
	{ .name = "padding", .has_arg = 1, .flag = NULL, .val = 'j' },
	{ .name = "pagesize", .has_arg = 1, .flag = NULL, .val = 'p' },
	{ .name = "output", .has_arg = 1, .flag = NULL, .val = 'o' },
	{ .name = "output-oob", .has_arg = 1, .flag = NULL, .val = 'q' },
	{ .name = "ecc-layout", .has_arg = 1, .flag = NULL, .val = 'l' },
	{ .name = "help", .has_arg = 0, .flag = NULL, .val = '?' },
	{ .name = "usage", .has_arg = 0, .flag = NULL, .val = 0 },
	{ .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
	{ NULL, 0, NULL, 0}
};

#define __unused __attribute__((unused))
static const char copyright [] __unused = "Copyright IBM Corp. 2007";

struct args {
	action_t action;

	size_t pagesize;
	size_t oobsize;
	size_t padding;

	FILE* fp_in;
	const char *file_out_data; /* Either: Data and OOB interleaved
				      or plain data */
	const char *file_out_oob; /* OOB Data only. */
	struct nand_ecclayout *nand_oob;

	/* special stuff needed to get additional arguments */
	char *arg1;
	char **options;			/* [STRING...] */
};


static int ustrtoull(const char *cp, char **endp, unsigned int base)
{
	unsigned long long res = strtoull(cp, endp, base);

	switch (**endp) {
	case 'G':
		res *= 1024;
	case 'M':
		res *= 1024;
	case 'k':
	case 'K':
		res *= 1024;
	/* "Ki", "ki", "Mi" or "Gi" are to be used. */
		if ((*endp)[1] == 'i')
			(*endp) += 2;
	}
	return res;
}

static int
parse_opt(int argc, char **argv, struct args *args)
{
	const char *ecc_layout = NULL;
	unsigned int i, oob_idx = 0;
	char* endp;

	while (1) {
		int key;

		key = getopt_long(argc, argv, "cj:l:p:o:q:?V", long_options, NULL);
		if (key == -1)
			break;

		switch (key) {
		case 'p': /* pagesize */
			args->pagesize = (size_t)
				ustrtoull(optarg, &endp, 0);
			CHECK_ENDP("p", endp);
			break;
		case 'j': /* padding */
			args->padding = (size_t)
				ustrtoull(optarg, &endp, 0);
			CHECK_ENDP("j", endp);
			break;
		case 'o': /* output */
			args->file_out_data = optarg;
			break;
		case 'q': /* output oob */
			args->file_out_oob = optarg;
			break;
		case 'l': /* --ecc-layout=<...> */
			ecc_layout = optarg;
			break;
		case '?': /* help */
			printf("%s%s", doc, optionsstr);
			exit(0);
			break;
		case 'V':
			printf("%s\n", PROGRAM_VERSION);
			exit(0);
			break;
		case 'c':
			printf("%s\n", copyright);
			exit(0);
		default:
			printf("%s", usage);
			exit(-1);
		}
	}

	if (optind < argc) {
		args->fp_in = fopen(argv[optind++], "rb");
		if ((args->fp_in) == NULL) {
			err_quit("Cannot open file %s for input\n",
				 argv[optind++]);
		}
	}

	switch (args->pagesize) {
	case 512:  args->oobsize = 16; oob_idx = 0; break;
	case 2048: args->oobsize = 64; oob_idx = 1; break;
	default:
		err_msg("Unsupported page size: %d\n", args->pagesize);
		return -EINVAL;
	}

	/* Figure out correct oob layout if it differs from default */
	if (ecc_layout) {
		for (i = 0; i < ARRAY_SIZE(oob_placement); i++)
			if (strcmp(ecc_layout, oob_placement[i].name) == 0)
				args->nand_oob =
					oob_placement[i].nand_oob[oob_idx];
	}
	return 0;
}

static int
process_page(struct args *args, uint8_t *buf, FILE *fp_data, FILE *fp_oob,
	     size_t *written)
{
	int eccpoi;
	size_t i;
	uint8_t oobbuf[64];
	uint8_t ecc_code[3] = { 0, }; /* temp */

	/* Calculate ECC for each subpage of 256 bytes */
	memset(oobbuf, 0xff, sizeof(oobbuf));
	for (eccpoi = 0, i = 0; i < args->pagesize; i += 256, eccpoi += 3) {
		int j;
		nand_calculate_ecc(&buf[i], ecc_code);
		for (j = 0; j < 3; j++)
			oobbuf[args->nand_oob->eccpos[eccpoi + j]] = ecc_code[j];
	}

	/* write data */
	*written += fwrite(buf, 1, args->pagesize, fp_data);

	/* either separate oob or interleave with data */
	if (fp_oob) {
		i = fwrite(oobbuf, 1, args->oobsize, fp_oob);
		if (ferror(fp_oob)) {
			err_msg("IO error\n");
			return -EIO;
		}
	}
	else {
		i = fwrite(oobbuf, 1, args->oobsize, fp_data);
		if (ferror(fp_data)) {
			err_msg("IO error\n");
			return -EIO;
		}
	}

	return 0;
}

int main (int argc, char** argv)
{
	int rc = -1;
	int res = 0;
	size_t written = 0, read;
	struct args args = {
		.action	  = ACT_NORMAL,
		.pagesize = PAGESIZE,
		.padding  = PADDING,
		.fp_in	  = NULL,
		.file_out_data = NULL,
		.file_out_oob = NULL,
		.nand_oob = &ibm_nand_oob_64,
	};

	FILE* fp_out_data = stdout;
	FILE* fp_out_oob = NULL;

	parse_opt(argc, argv, &args);

	uint8_t* buf = calloc(1, BUFSIZE);
	if (!buf) {
		err_quit("Cannot allocate page buffer.\n");
	}

	if (!args.fp_in) {
		err_msg("No input image specified!\n");
		goto err;
	}

	if (args.file_out_data) {
		fp_out_data = fopen(args.file_out_data, "wb");
		if (fp_out_data == NULL) {
			err_sys("Cannot open file %s for output\n",
					args.file_out_data);
			goto err;
		}
	}

	if (args.file_out_oob) {
		fp_out_oob = fopen(args.file_out_oob, "wb");
		if (fp_out_oob == NULL) {
			err_sys("Cannot open file %s for output\n",
					args.file_out_oob);
			goto err;
		}
	}


	while(1) {
		read = fread(buf, 1, args.pagesize, args.fp_in);
		if (feof(args.fp_in) && read == 0)
			break;

		if (read < args.pagesize) {
			err_msg("Image not page aligned\n");
			goto err;
		}

		if (ferror(args.fp_in)) {
			err_msg("Read error\n");
			goto err;
		}

		res = process_page(&args, buf, fp_out_data, fp_out_oob,
				   &written);
		if (res != 0)
			goto err;
	}

	while (written < args.padding) {
		memset(buf, 0xff, args.pagesize);
		res = process_page(&args, buf, fp_out_data, fp_out_oob,
				   &written);
		if (res != 0)
			goto err;
	}

	rc = 0;
err:
	free(buf);

	if (args.fp_in)
		fclose(args.fp_in);

	if (fp_out_oob)
		fclose(fp_out_oob);

	if (fp_out_data && fp_out_data != stdout)
		fclose(fp_out_data);

	if (rc != 0) {
		err_msg("Error during conversion. rc: %d\n", rc);
		if (args.file_out_data)
			remove(args.file_out_data);
		if (args.file_out_oob)
			remove(args.file_out_oob);
	}
	return rc;
}