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Diffstat (limited to 'package/nand/src/nanddump.c')
| -rw-r--r-- | package/nand/src/nanddump.c | 421 |
1 files changed, 0 insertions, 421 deletions
diff --git a/package/nand/src/nanddump.c b/package/nand/src/nanddump.c deleted file mode 100644 index 678d6847a..000000000 --- a/package/nand/src/nanddump.c +++ /dev/null @@ -1,421 +0,0 @@ -/* - * nanddump.c - * - * Copyright (C) 2000 David Woodhouse (dwmw2@infradead.org) - * Steven J. Hill (sjhill@realitydiluted.com) - * - * 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. - * - * Overview: - * This utility dumps the contents of raw NAND chips or NAND - * chips contained in DoC devices. - */ - -#define _GNU_SOURCE -#include <ctype.h> -#include <errno.h> -#include <fcntl.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <getopt.h> -#include <sys/ioctl.h> -#include <sys/types.h> -#include <sys/stat.h> - -#include <asm/types.h> -#include <mtd/mtd-user.h> - -#define PROGRAM "nanddump" -#define VERSION "$Revision: 1.29 $" - -static struct nand_oobinfo none_oobinfo = { - .useecc = MTD_NANDECC_OFF, -}; - -static void display_help (void) -{ - printf( -"Usage: nanddump [OPTIONS] MTD-device\n" -"Dumps the contents of a nand mtd partition.\n" -"\n" -" --help Display this help and exit\n" -" --version Output version information and exit\n" -"-f file --file=file Dump to file\n" -"-i --ignoreerrors Ignore errors\n" -"-l length --length=length Length\n" -"-n --noecc Read without error correction\n" -"-o --omitoob Omit oob data\n" -"-b --omitbad Omit bad blocks from the dump\n" -"-p --prettyprint Print nice (hexdump)\n" -"-q --quiet Don't display progress and status messages\n" -"-s addr --startaddress=addr Start address\n" - ); - exit(EXIT_SUCCESS); -} - -static void display_version (void) -{ - printf(PROGRAM " " VERSION "\n" - "\n" - PROGRAM " comes with NO WARRANTY\n" - "to the extent permitted by law.\n" - "\n" - "You may redistribute copies of " PROGRAM "\n" - "under the terms of the GNU General Public Licence.\n" - "See the file `COPYING' for more information.\n"); - exit(EXIT_SUCCESS); -} - -// Option variables - -static bool ignoreerrors = false; // ignore errors -static bool pretty_print = false; // print nice in ascii -static bool noecc = false; // don't error correct -static bool omitoob = false; // omit oob data -static unsigned long start_addr; // start address -static unsigned long length; // dump length -static const char *mtddev; // mtd device name -static const char *dumpfile; // dump file name -static bool omitbad = false; -static bool quiet = false; // suppress diagnostic output - -static void process_options (int argc, char * const argv[]) -{ - int error = 0; - - for (;;) { - int option_index = 0; - static const char *short_options = "bs:f:il:opqn"; - static const struct option long_options[] = { - {"help", no_argument, 0, 0}, - {"version", no_argument, 0, 0}, - {"file", required_argument, 0, 'f'}, - {"ignoreerrors", no_argument, 0, 'i'}, - {"prettyprint", no_argument, 0, 'p'}, - {"omitoob", no_argument, 0, 'o'}, - {"omitbad", no_argument, 0, 'b'}, - {"startaddress", required_argument, 0, 's'}, - {"length", required_argument, 0, 'l'}, - {"noecc", no_argument, 0, 'n'}, - {"quiet", no_argument, 0, 'q'}, - {0, 0, 0, 0}, - }; - - int c = getopt_long(argc, argv, short_options, - long_options, &option_index); - if (c == EOF) { - break; - } - - switch (c) { - case 0: - switch (option_index) { - case 0: - display_help(); - break; - case 1: - display_version(); - break; - } - break; - case 'b': - omitbad = true; - break; - case 's': - start_addr = strtol(optarg, NULL, 0); - break; - case 'f': - if (!(dumpfile = strdup(optarg))) { - perror("stddup"); - exit(EXIT_FAILURE); - } - break; - case 'i': - ignoreerrors = true; - break; - case 'l': - length = strtol(optarg, NULL, 0); - break; - case 'o': - omitoob = true; - break; - case 'p': - pretty_print = true; - break; - case 'q': - quiet = true; - break; - case 'n': - noecc = true; - break; - case '?': - error++; - break; - } - } - - if (quiet && pretty_print) { - fprintf(stderr, "The quiet and pretty print options are mutually-\n" - "exclusive. Choose one or the other.\n"); - exit(EXIT_FAILURE); - } - - if ((argc - optind) != 1 || error) - display_help (); - - mtddev = argv[optind]; -} - -/* - * Buffers for reading data from flash - */ -static unsigned char readbuf[4096]; -static unsigned char oobbuf[128]; - -/* - * Main program - */ -int main(int argc, char * const argv[]) -{ - unsigned long ofs, end_addr = 0; - unsigned long long blockstart = 1; - int ret, i, fd, ofd, bs, badblock = 0; - struct mtd_oob_buf oob = {0, 16, oobbuf}; - mtd_info_t meminfo; - char pretty_buf[80]; - int oobinfochanged = 0 ; - struct nand_oobinfo old_oobinfo; - struct mtd_ecc_stats stat1, stat2; - bool eccstats = false; - - process_options(argc, argv); - - /* Open MTD device */ - if ((fd = open(mtddev, O_RDONLY)) == -1) { - perror(mtddev); - exit (EXIT_FAILURE); - } - - /* Fill in MTD device capability structure */ - if (ioctl(fd, MEMGETINFO, &meminfo) != 0) { - perror("MEMGETINFO"); - close(fd); - exit (EXIT_FAILURE); - } - - /* Make sure device page sizes are valid */ - if (!(meminfo.oobsize == 128 && meminfo.writesize == 4096) && - !(meminfo.oobsize == 64 && meminfo.writesize == 2048) && - !(meminfo.oobsize == 32 && meminfo.writesize == 1024) && - !(meminfo.oobsize == 16 && meminfo.writesize == 512) && - !(meminfo.oobsize == 8 && meminfo.writesize == 256)) { - fprintf(stderr, "Unknown flash (not normal NAND)\n"); - close(fd); - exit(EXIT_FAILURE); - } - /* Read the real oob length */ - oob.length = meminfo.oobsize; - - if (noecc) { - ret = ioctl(fd, MTDFILEMODE, (void *) MTD_MODE_RAW); - if (ret == 0) { - oobinfochanged = 2; - } else { - switch (errno) { - case ENOTTY: - if (ioctl (fd, MEMGETOOBSEL, &old_oobinfo) != 0) { - perror ("MEMGETOOBSEL"); - close (fd); - exit (EXIT_FAILURE); - } - if (ioctl (fd, MEMSETOOBSEL, &none_oobinfo) != 0) { - perror ("MEMSETOOBSEL"); - close (fd); - exit (EXIT_FAILURE); - } - oobinfochanged = 1; - break; - default: - perror ("MTDFILEMODE"); - close (fd); - exit (EXIT_FAILURE); - } - } - } else { - - /* check if we can read ecc stats */ - if (!ioctl(fd, ECCGETSTATS, &stat1)) { - eccstats = true; - if (!quiet) { - fprintf(stderr, "ECC failed: %d\n", stat1.failed); - fprintf(stderr, "ECC corrected: %d\n", stat1.corrected); - fprintf(stderr, "Number of bad blocks: %d\n", stat1.badblocks); - fprintf(stderr, "Number of bbt blocks: %d\n", stat1.bbtblocks); - } - } else - perror("No ECC status information available"); - } - - /* Open output file for writing. If file name is "-", write to standard - * output. */ - if (!dumpfile) { - ofd = STDOUT_FILENO; - } else if ((ofd = open(dumpfile, O_WRONLY | O_TRUNC | O_CREAT, 0644))== -1) { - perror (dumpfile); - close(fd); - exit(EXIT_FAILURE); - } - - /* Initialize start/end addresses and block size */ - if (length) - end_addr = start_addr + length; - if (!length || end_addr > meminfo.size) - end_addr = meminfo.size; - - bs = meminfo.writesize; - - /* Print informative message */ - - if (!quiet) { - fprintf(stderr, "Block size %u, page size %u, OOB size %u\n", - meminfo.erasesize, meminfo.writesize, meminfo.oobsize); - fprintf(stderr, - "Dumping data starting at 0x%08x and ending at 0x%08x...\n", - (unsigned int) start_addr, (unsigned int) end_addr); - } - /* Dump the flash contents */ - for (ofs = start_addr; ofs < end_addr ; ofs+=bs) { - - // new eraseblock , check for bad block - if (blockstart != (ofs & (~meminfo.erasesize + 1))) { - blockstart = ofs & (~meminfo.erasesize + 1); - if ((badblock = ioctl(fd, MEMGETBADBLOCK, &blockstart)) < 0) { - perror("ioctl(MEMGETBADBLOCK)"); - goto closeall; - } - } - - if (badblock) { - if (omitbad) - continue; - memset (readbuf, 0xff, bs); - } else { - /* Read page data and exit on failure */ - if (pread(fd, readbuf, bs, ofs) != bs) { - perror("pread"); - goto closeall; - } - } - - /* ECC stats available ? */ - if (eccstats) { - if (ioctl(fd, ECCGETSTATS, &stat2)) { - perror("ioctl(ECCGETSTATS)"); - goto closeall; - } - if (stat1.failed != stat2.failed) - fprintf(stderr, "ECC: %d uncorrectable bitflip(s)" - " at offset 0x%08lx\n", - stat2.failed - stat1.failed, ofs); - if (stat1.corrected != stat2.corrected) - fprintf(stderr, "ECC: %d corrected bitflip(s) at" - " offset 0x%08lx\n", - stat2.corrected - stat1.corrected, ofs); - stat1 = stat2; - } - - /* Write out page data */ - if (pretty_print) { - for (i = 0; i < bs; i += 16) { - sprintf(pretty_buf, - "0x%08x: %02x %02x %02x %02x %02x %02x %02x " - "%02x %02x %02x %02x %02x %02x %02x %02x %02x\n", - (unsigned int) (ofs + i), readbuf[i], - readbuf[i+1], readbuf[i+2], - readbuf[i+3], readbuf[i+4], - readbuf[i+5], readbuf[i+6], - readbuf[i+7], readbuf[i+8], - readbuf[i+9], readbuf[i+10], - readbuf[i+11], readbuf[i+12], - readbuf[i+13], readbuf[i+14], - readbuf[i+15]); - write(ofd, pretty_buf, 60); - } - } else - write(ofd, readbuf, bs); - - - - if (omitoob) - continue; - - if (badblock) { - memset (readbuf, 0xff, meminfo.oobsize); - } else { - /* Read OOB data and exit on failure */ - oob.start = ofs; - if (ioctl(fd, MEMREADOOB, &oob) != 0) { - perror("ioctl(MEMREADOOB)"); - goto closeall; - } - } - - /* Write out OOB data */ - if (pretty_print) { - if (meminfo.oobsize < 16) { - sprintf(pretty_buf, " OOB Data: %02x %02x %02x %02x %02x %02x " - "%02x %02x\n", - oobbuf[0], oobbuf[1], oobbuf[2], - oobbuf[3], oobbuf[4], oobbuf[5], - oobbuf[6], oobbuf[7]); - write(ofd, pretty_buf, 48); - continue; - } - - for (i = 0; i < meminfo.oobsize; i += 16) { - sprintf(pretty_buf, " OOB Data: %02x %02x %02x %02x %02x %02x " - "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x\n", - oobbuf[i], oobbuf[i+1], oobbuf[i+2], - oobbuf[i+3], oobbuf[i+4], oobbuf[i+5], - oobbuf[i+6], oobbuf[i+7], oobbuf[i+8], - oobbuf[i+9], oobbuf[i+10], oobbuf[i+11], - oobbuf[i+12], oobbuf[i+13], oobbuf[i+14], - oobbuf[i+15]); - write(ofd, pretty_buf, 60); - } - } else - write(ofd, oobbuf, meminfo.oobsize); - } - - /* reset oobinfo */ - if (oobinfochanged == 1) { - if (ioctl (fd, MEMSETOOBSEL, &old_oobinfo) != 0) { - perror ("MEMSETOOBSEL"); - close(fd); - close(ofd); - return EXIT_FAILURE; - } - } - /* Close the output file and MTD device */ - close(fd); - close(ofd); - - /* Exit happy */ - return EXIT_SUCCESS; - -closeall: - /* The new mode change is per file descriptor ! */ - if (oobinfochanged == 1) { - if (ioctl (fd, MEMSETOOBSEL, &old_oobinfo) != 0) { - perror ("MEMSETOOBSEL"); - } - } - close(fd); - close(ofd); - exit(EXIT_FAILURE); -} |