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Diffstat (limited to 'ubi-utils/src/nand2bin.c')
| -rw-r--r-- | ubi-utils/src/nand2bin.c | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/ubi-utils/src/nand2bin.c b/ubi-utils/src/nand2bin.c new file mode 100644 index 0000000..b8e4ea3 --- /dev/null +++ b/ubi-utils/src/nand2bin.c @@ -0,0 +1,312 @@ +/* + * Copyright (c) International Business Machines Corp., 2006 + * + * 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: Frank Haverkamp + * + * An utility to decompose NAND images and strip OOB off. Not yet finished ... + * + * 1.2 Removed argp because we want to use uClibc. + * 1.3 Minor cleanup + */ + +#include <config.h> +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdint.h> +#include <getopt.h> +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include <sys/stat.h> +#include <sys/types.h> + +#include "config.h" +#include "nandecc.h" + +#define PROGRAM_VERSION "1.3" + +#define MAXPATH 1024 +#define MIN(x,y) ((x)<(y)?(x):(y)) + +struct args { + const char *oob_file; + const char *output_file; + size_t pagesize; + + /* special stuff needed to get additional arguments */ + char *arg1; + char **options; /* [STRING...] */ +}; + +static struct args myargs = { + .output_file = "data.bin", + .oob_file = "oob.bin", + .pagesize = 2048, + .arg1 = NULL, + .options = NULL, +}; + +static char doc[] = "\nVersion: " PROGRAM_VERSION "\n\t" + BUILD_OS" "BUILD_CPU" at "__DATE__" "__TIME__"\n" + "\nSplit data and OOB.\n"; + +static const char *optionsstr = +" -o, --output=<output> Data output file\n" +" -O, --oob=<oob> OOB output file\n" +" -p, --pagesize=<pagesize> NAND pagesize\n" +" -?, --help Give this help list\n" +" --usage Give a short usage message\n"; + +static const char *usage = +"Usage: nand2bin [-?] [-o <output>] [-O <oob>] [-p <pagesize>]\n" +" [--output=<output>] [--oob=<oob>] [--pagesize=<pagesize>] [--help]\n" +" [--usage] input.mif\n"; + +struct option long_options[] = { + { .name = "output", .has_arg = 1, .flag = NULL, .val = 'o' }, + { .name = "oob", .has_arg = 1, .flag = NULL, .val = 'O' }, + { .name = "pagesize", .has_arg = 1, .flag = NULL, .val = 'p' }, + { .name = "help", .has_arg = 0, .flag = NULL, .val = '?' }, + { .name = "usage", .has_arg = 0, .flag = NULL, .val = 0 }, + { NULL, 0, NULL, 0} +}; + +/* + * str_to_num - Convert string into number and cope with endings like + * k, K, kib, KiB for kilobyte + * m, M, mib, MiB for megabyte + */ +uint32_t str_to_num(char *str) +{ + char *s = str; + ulong num = strtoul(s, &s, 0); + + if (*s != '\0') { + if (strcmp(s, "KiB") == 0) + num *= 1024; + else if (strcmp(s, "MiB") == 0) + num *= 1024*1024; + else { + fprintf(stderr, "WARNING: Wrong number format " + "\"%s\", check your paramters!\n", str); + } + } + return num; +} + +/* + * @brief Parse the arguments passed into the test case. + * + * @param argc The number of arguments + * @param argv The argument list + * @param args Pointer to program args structure + * + * @return error + * + */ +static int +parse_opt(int argc, char **argv, struct args *args) +{ + while (1) { + int key; + + key = getopt_long(argc, argv, "o:O:p:?", long_options, NULL); + if (key == -1) + break; + + switch (key) { + case 'p': /* --pagesize<pagesize> */ + args->pagesize = str_to_num(optarg); + break; + + case 'o': /* --output=<output.bin> */ + args->output_file = optarg; + break; + + case 'O': /* --oob=<oob.bin> */ + args->output_file = optarg; + break; + + case '?': /* help */ + printf("Usage: nand2bin [OPTION...] input.mif\n"); + printf("%s", doc); + printf("%s", optionsstr); + printf("\nReport bugs to %s\n", + PACKAGE_BUGREPORT); + exit(0); + break; + + case 'V': + printf("%s\n", PROGRAM_VERSION); + exit(0); + break; + + default: + printf("%s", usage); + exit(-1); + } + } + + if (optind < argc) + args->arg1 = argv[optind++]; + + return 0; +} + +static int calc_oobsize(size_t pagesize) +{ + switch (pagesize) { + case 512: return 16; + case 2048: return 64; + default: + exit(EXIT_FAILURE); + } + return 0; +} + +static inline void +hexdump(FILE *fp, const uint8_t *buf, ssize_t size) +{ + int k; + + for (k = 0; k < size; k++) { + fprintf(fp, "%02x ", buf[k]); + if ((k & 15) == 15) + fprintf(fp, "\n"); + } +} + +static int +process_page(uint8_t* buf, uint8_t *oobbuf, size_t pagesize) +{ + int eccpoi, oobsize; + size_t i; + + switch (pagesize) { + case 2048: oobsize = 64; eccpoi = 64 / 2; break; + case 512: oobsize = 16; eccpoi = 16 / 2; break; + default: + fprintf(stderr, "Unsupported page size: %zd\n", pagesize); + return -EINVAL; + } + memset(oobbuf, 0xff, oobsize); + + for (i = 0; i < pagesize; i += 256, eccpoi += 3) { + oobbuf[eccpoi++] = 0x0; + /* Calculate ECC */ + nand_calculate_ecc(&buf[i], &oobbuf[eccpoi]); + } + return 0; +} + +static int decompose_image(FILE *in_fp, FILE *bin_fp, FILE *oob_fp, + size_t pagesize) +{ + int read, rc, page = 0; + size_t oobsize = calc_oobsize(pagesize); + uint8_t *buf = malloc(pagesize); + uint8_t *oob = malloc(oobsize); + uint8_t *calc_oob = malloc(oobsize); + uint8_t *calc_buf = malloc(pagesize); + + if (!buf) + exit(EXIT_FAILURE); + if (!oob) + exit(EXIT_FAILURE); + if (!calc_oob) + exit(EXIT_FAILURE); + if (!calc_buf) + exit(EXIT_FAILURE); + + while (!feof(in_fp)) { + read = fread(buf, 1, pagesize, in_fp); + if (ferror(in_fp)) { + fprintf(stderr, "I/O Error."); + exit(EXIT_FAILURE); + } + rc = fwrite(buf, 1, pagesize, bin_fp); + if (ferror(bin_fp)) { + fprintf(stderr, "I/O Error."); + exit(EXIT_FAILURE); + } + read = fread(oob, 1, oobsize, in_fp); + if (ferror(in_fp)) { + fprintf(stderr, "I/O Error."); + exit(EXIT_FAILURE); + } + rc = fwrite(oob, 1, oobsize, oob_fp); + if (ferror(bin_fp)) { + fprintf(stderr, "I/O Error."); + exit(EXIT_FAILURE); + } + process_page(buf, calc_oob, pagesize); + + memcpy(calc_buf, buf, pagesize); + + rc = nand_correct_data(calc_buf, oob); + if ((rc != -1) || (memcmp(buf, calc_buf, pagesize) != 0)) { + fprintf(stdout, "Page %d: data does not match!\n", + page); + } + page++; + } + free(calc_buf); + free(calc_oob); + free(oob); + free(buf); + return 0; +} + +int +main(int argc, char *argv[]) +{ + FILE *in, *bin, *oob; + + parse_opt(argc, argv, &myargs); + + if (!myargs.arg1) { + fprintf(stderr, "Please specify input file!\n"); + exit(EXIT_FAILURE); + } + + in = fopen(myargs.arg1, "r"); + if (!in) { + perror("Cannot open file"); + exit(EXIT_FAILURE); + } + bin = fopen(myargs.output_file, "w+"); + if (!bin) { + perror("Cannot open file"); + exit(EXIT_FAILURE); + } + oob = fopen(myargs.oob_file, "w+"); + if (!oob) { + perror("Cannot open file"); + exit(EXIT_FAILURE); + } + + decompose_image(in, bin, oob, myargs.pagesize); + + fclose(in); + fclose(bin); + fclose(oob); + + exit(EXIT_SUCCESS); +} |