diff options
Diffstat (limited to 'package/nand/src/nandwrite.c')
| -rw-r--r-- | package/nand/src/nandwrite.c | 647 |
1 files changed, 0 insertions, 647 deletions
diff --git a/package/nand/src/nandwrite.c b/package/nand/src/nandwrite.c deleted file mode 100644 index 0b2a9ee8b..000000000 --- a/package/nand/src/nandwrite.c +++ /dev/null @@ -1,647 +0,0 @@ -/* - * nandwrite.c - * - * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) - * 2003 Thomas Gleixner (tglx@linutronix.de) - * - * 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 writes a binary image directly to a NAND flash - * chip or NAND chips contained in DoC devices. This is the - * "inverse operation" of nanddump. - * - * tglx: Major rewrite to handle bad blocks, write data with or without ECC - * write oob data only on request - * - * Bug/ToDo: - */ - -#define _GNU_SOURCE -#include <ctype.h> -#include <errno.h> -#include <fcntl.h> -#include <stdbool.h> -#include <stddef.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <unistd.h> -#include <sys/stat.h> -#include <sys/ioctl.h> -#include <sys/types.h> -#include <getopt.h> - -#include <asm/types.h> -#include "mtd/mtd-user.h" - -#define PROGRAM "nandwrite" -#define VERSION "$Revision: 1.32 $" - -#define MAX_PAGE_SIZE 4096 -#define MAX_OOB_SIZE 128 - -/* - * Buffer array used for writing data - */ -static unsigned char writebuf[MAX_PAGE_SIZE]; -static unsigned char oobbuf[MAX_OOB_SIZE]; -static unsigned char oobreadbuf[MAX_OOB_SIZE]; - -// oob layouts to pass into the kernel as default -static struct nand_oobinfo none_oobinfo = { - .useecc = MTD_NANDECC_OFF, -}; - -static struct nand_oobinfo jffs2_oobinfo = { - .useecc = MTD_NANDECC_PLACE, - .eccbytes = 6, - .eccpos = { 0, 1, 2, 3, 6, 7 } -}; - -static struct nand_oobinfo yaffs_oobinfo = { - .useecc = MTD_NANDECC_PLACE, - .eccbytes = 6, - .eccpos = { 8, 9, 10, 13, 14, 15} -}; - -static struct nand_oobinfo autoplace_oobinfo = { - .useecc = MTD_NANDECC_AUTOPLACE -}; - -static void display_help (void) -{ - printf( -"Usage: nandwrite [OPTION] MTD_DEVICE [INPUTFILE|-]\n" -"Writes to the specified MTD device.\n" -"\n" -" -a, --autoplace Use auto oob layout\n" -" -j, --jffs2 Force jffs2 oob layout (legacy support)\n" -" -y, --yaffs Force yaffs oob layout (legacy support)\n" -" -f, --forcelegacy Force legacy support on autoplacement-enabled mtd\n" -" device\n" -" -m, --markbad Mark blocks bad if write fails\n" -" -n, --noecc Write without ecc\n" -" -o, --oob Image contains oob data\n" -" -s addr, --start=addr Set start address (default is 0)\n" -" -p, --pad Pad to page size\n" -" -b, --blockalign=1|2|4 Set multiple of eraseblocks to align to\n" -" -q, --quiet Don't display progress messages\n" -" --help Display this help and exit\n" -" --version Output version information and exit\n" - ); - exit (EXIT_SUCCESS); -} - -static void display_version (void) -{ - printf(PROGRAM " " VERSION "\n" - "\n" - "Copyright (C) 2003 Thomas Gleixner \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); -} - -static const char *standard_input = "-"; -static const char *mtd_device, *img; -static int mtdoffset = 0; -static bool quiet = false; -static bool writeoob = false; -static bool autoplace = false; -static bool markbad = false; -static bool forcejffs2 = false; -static bool forceyaffs = false; -static bool forcelegacy = false; -static bool noecc = false; -static bool pad = false; -static int blockalign = 1; /*default to using 16K block size */ - -static void process_options (int argc, char * const argv[]) -{ - int error = 0; - - for (;;) { - int option_index = 0; - static const char *short_options = "ab:fjmnopqs:y"; - static const struct option long_options[] = { - {"help", no_argument, 0, 0}, - {"version", no_argument, 0, 0}, - {"autoplace", no_argument, 0, 'a'}, - {"blockalign", required_argument, 0, 'b'}, - {"forcelegacy", no_argument, 0, 'f'}, - {"jffs2", no_argument, 0, 'j'}, - {"markbad", no_argument, 0, 'm'}, - {"noecc", no_argument, 0, 'n'}, - {"oob", no_argument, 0, 'o'}, - {"pad", no_argument, 0, 'p'}, - {"quiet", no_argument, 0, 'q'}, - {"start", required_argument, 0, 's'}, - {"yaffs", no_argument, 0, 'y'}, - {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 'q': - quiet = true; - break; - case 'a': - autoplace = true; - break; - case 'j': - forcejffs2 = true; - break; - case 'y': - forceyaffs = true; - break; - case 'f': - forcelegacy = true; - break; - case 'n': - noecc = true; - break; - case 'm': - markbad = true; - break; - case 'o': - writeoob = true; - break; - case 'p': - pad = true; - break; - case 's': - mtdoffset = strtol (optarg, NULL, 0); - break; - case 'b': - blockalign = atoi (optarg); - break; - case '?': - error++; - break; - } - } - - if (mtdoffset < 0) { - fprintf(stderr, "Can't specify a negative device offset `%d'\n", - mtdoffset); - exit (EXIT_FAILURE); - } - - argc -= optind; - argv += optind; - - /* - * There must be at least the MTD device node positional - * argument remaining and, optionally, the input file. - */ - - if (argc < 1 || argc > 2 || error) - display_help (); - - mtd_device = argv[0]; - - /* - * Standard input may be specified either explictly as "-" or - * implicity by simply omitting the second of the two - * positional arguments. - */ - - img = ((argc == 2) ? argv[1] : standard_input); -} - -static void erase_buffer(void *buffer, size_t size) -{ - const uint8_t kEraseByte = 0xff; - - if (buffer != NULL && size > 0) { - memset(buffer, kEraseByte, size); - } -} - -/* - * Main program - */ -int main(int argc, char * const argv[]) -{ - int cnt = 0; - int fd = -1; - int ifd = -1; - int imglen = 0, pagelen; - bool baderaseblock = false; - int blockstart = -1; - struct mtd_info_user meminfo; - struct mtd_oob_buf oob; - loff_t offs; - int ret, readlen; - int oobinfochanged = 0; - struct nand_oobinfo old_oobinfo; - int readcnt = 0; - - process_options(argc, argv); - - erase_buffer(oobbuf, sizeof(oobbuf)); - - if (pad && writeoob) { - fprintf(stderr, "Can't pad when oob data is present.\n"); - exit (EXIT_FAILURE); - } - - /* Open the device */ - if ((fd = open(mtd_device, O_RDWR)) == -1) { - perror(mtd_device); - exit (EXIT_FAILURE); - } - - /* Fill in MTD device capability structure */ - if (ioctl(fd, MEMGETINFO, &meminfo) != 0) { - perror("MEMGETINFO"); - close(fd); - exit (EXIT_FAILURE); - } - - /* Set erasesize to specified number of blocks - to match jffs2 - * (virtual) block size */ - meminfo.erasesize *= blockalign; - - /* Make sure device page sizes are valid */ - if (!(meminfo.oobsize == 16 && meminfo.writesize == 512) && - !(meminfo.oobsize == 8 && meminfo.writesize == 256) && - !(meminfo.oobsize == 64 && meminfo.writesize == 2048) && - !(meminfo.oobsize == 128 && meminfo.writesize == 4096)) { - fprintf(stderr, "Unknown flash (not normal NAND)\n"); - close(fd); - exit (EXIT_FAILURE); - } - - if (autoplace) { - /* Read the current oob info */ - if (ioctl (fd, MEMGETOOBSEL, &old_oobinfo) != 0) { - perror ("MEMGETOOBSEL"); - close (fd); - exit (EXIT_FAILURE); - } - - // autoplace ECC ? - if (autoplace && (old_oobinfo.useecc != MTD_NANDECC_AUTOPLACE)) { - - if (ioctl (fd, MEMSETOOBSEL, &autoplace_oobinfo) != 0) { - perror ("MEMSETOOBSEL"); - close (fd); - exit (EXIT_FAILURE); - } - oobinfochanged = 1; - } - } - - 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); - } - } - } - - /* - * force oob layout for jffs2 or yaffs ? - * Legacy support - */ - if (forcejffs2 || forceyaffs) { - struct nand_oobinfo *oobsel = forcejffs2 ? &jffs2_oobinfo : &yaffs_oobinfo; - - if (autoplace) { - fprintf(stderr, "Autoplacement is not possible for legacy -j/-y options\n"); - goto restoreoob; - } - if ((old_oobinfo.useecc == MTD_NANDECC_AUTOPLACE) && !forcelegacy) { - fprintf(stderr, "Use -f option to enforce legacy placement on autoplacement enabled mtd device\n"); - goto restoreoob; - } - if (meminfo.oobsize == 8) { - if (forceyaffs) { - fprintf (stderr, "YAFSS cannot operate on 256 Byte page size"); - goto restoreoob; - } - /* Adjust number of ecc bytes */ - jffs2_oobinfo.eccbytes = 3; - } - - if (ioctl (fd, MEMSETOOBSEL, oobsel) != 0) { - perror ("MEMSETOOBSEL"); - goto restoreoob; - } - } - - oob.length = meminfo.oobsize; - oob.ptr = noecc ? oobreadbuf : oobbuf; - - /* Determine if we are reading from standard input or from a file. */ - if (strcmp(img, standard_input) == 0) { - ifd = STDIN_FILENO; - } else { - ifd = open(img, O_RDONLY); - } - - if (ifd == -1) { - perror(img); - goto restoreoob; - } - - /* For now, don't allow writing oob when reading from standard input. */ - if (ifd == STDIN_FILENO && writeoob) { - fprintf(stderr, "Can't write oob when reading from standard input.\n"); - goto closeall; - } - - pagelen = meminfo.writesize + ((writeoob) ? meminfo.oobsize : 0); - - /* - * For the standard input case, the input size is merely an - * invariant placeholder and is set to the write page - * size. Otherwise, just use the input file size. - * - * TODO: Add support for the -l,--length=length option (see - * previous discussion by Tommi Airikka <tommi.airikka@ericsson.com> at - * <http://lists.infradead.org/pipermail/linux-mtd/2008-September/ - * 022913.html> - */ - - if (ifd == STDIN_FILENO) { - imglen = pagelen; - } else { - imglen = lseek(ifd, 0, SEEK_END); - lseek (ifd, 0, SEEK_SET); - } - - // Check, if file is page-aligned - if ((!pad) && ((imglen % pagelen) != 0)) { - fprintf (stderr, "Input file is not page-aligned. Use the padding " - "option.\n"); - goto closeall; - } - - // Check, if length fits into device - if ( ((imglen / pagelen) * meminfo.writesize) > (meminfo.size - mtdoffset)) { - fprintf (stderr, "Image %d bytes, NAND page %d bytes, OOB area %u bytes, device size %u bytes\n", - imglen, pagelen, meminfo.writesize, meminfo.size); - perror ("Input file does not fit into device"); - goto closeall; - } - - /* - * Get data from input and write to the device while there is - * still input to read and we are still within the device - * bounds. Note that in the case of standard input, the input - * length is simply a quasi-boolean flag whose values are page - * length or zero. - */ - while (imglen && (mtdoffset < meminfo.size)) { - // new eraseblock , check for bad block(s) - // Stay in the loop to be sure if the mtdoffset changes because - // of a bad block, that the next block that will be written to - // is also checked. Thus avoiding errors if the block(s) after the - // skipped block(s) is also bad (number of blocks depending on - // the blockalign - while (blockstart != (mtdoffset & (~meminfo.erasesize + 1))) { - blockstart = mtdoffset & (~meminfo.erasesize + 1); - offs = blockstart; - baderaseblock = false; - if (!quiet) - fprintf (stdout, "Writing data to block %d at offset 0x%x\n", - blockstart / meminfo.erasesize, blockstart); - - /* Check all the blocks in an erase block for bad blocks */ - do { - if ((ret = ioctl(fd, MEMGETBADBLOCK, &offs)) < 0) { - perror("ioctl(MEMGETBADBLOCK)"); - goto closeall; - } - if (ret == 1) { - baderaseblock = true; - if (!quiet) - fprintf (stderr, "Bad block at %x, %u block(s) " - "from %x will be skipped\n", - (int) offs, blockalign, blockstart); - } - - if (baderaseblock) { - mtdoffset = blockstart + meminfo.erasesize; - } - offs += meminfo.erasesize / blockalign ; - } while ( offs < blockstart + meminfo.erasesize ); - - } - - readlen = meminfo.writesize; - - if (ifd != STDIN_FILENO) { - int tinycnt = 0; - - if (pad && (imglen < readlen)) - { - readlen = imglen; - erase_buffer(writebuf + readlen, meminfo.writesize - readlen); - } - - /* Read Page Data from input file */ - while(tinycnt < readlen) { - cnt = read(ifd, writebuf + tinycnt, readlen - tinycnt); - if (cnt == 0) { // EOF - break; - } else if (cnt < 0) { - perror ("File I/O error on input file"); - goto closeall; - } - tinycnt += cnt; - } - } else { - int tinycnt = 0; - - while(tinycnt < readlen) { - cnt = read(ifd, writebuf + tinycnt, readlen - tinycnt); - if (cnt == 0) { // EOF - break; - } else if (cnt < 0) { - perror ("File I/O error on stdin"); - goto closeall; - } - tinycnt += cnt; - } - - /* No padding needed - we are done */ - if (tinycnt == 0) { - imglen = 0; - break; - } - - /* No more bytes - we are done after writing the remaining bytes */ - if (cnt == 0) { - imglen = 0; - } - - /* Padding */ - if (pad && (tinycnt < readlen)) { - erase_buffer(writebuf + tinycnt, meminfo.writesize - tinycnt); - } - } - - if (writeoob) { - int tinycnt = 0; - - while(tinycnt < readlen) { - cnt = read(ifd, oobreadbuf + tinycnt, meminfo.oobsize - tinycnt); - if (cnt == 0) { // EOF - break; - } else if (cnt < 0) { - perror ("File I/O error on input file"); - goto closeall; - } - tinycnt += cnt; - } - - if (!noecc) { - int i, start, len; - /* - * We use autoplacement and have the oobinfo with the autoplacement - * information from the kernel available - * - * Modified to support out of order oobfree segments, - * such as the layout used by diskonchip.c - */ - if (!oobinfochanged && (old_oobinfo.useecc == MTD_NANDECC_AUTOPLACE)) { - for (i = 0;old_oobinfo.oobfree[i][1]; i++) { - /* Set the reserved bytes to 0xff */ - start = old_oobinfo.oobfree[i][0]; - len = old_oobinfo.oobfree[i][1]; - memcpy(oobbuf + start, - oobreadbuf + start, - len); - } - } else { - /* Set at least the ecc byte positions to 0xff */ - start = old_oobinfo.eccbytes; - len = meminfo.oobsize - start; - memcpy(oobbuf + start, - oobreadbuf + start, - len); - } - } - /* Write OOB data first, as ecc will be placed in there*/ - oob.start = mtdoffset; - if (ioctl(fd, MEMWRITEOOB, &oob) != 0) { - perror ("ioctl(MEMWRITEOOB)"); - goto closeall; - } - imglen -= meminfo.oobsize; - } - - /* Write out the Page data */ - if (pwrite(fd, writebuf, meminfo.writesize, mtdoffset) != meminfo.writesize) { - int rewind_blocks; - off_t rewind_bytes; - erase_info_t erase; - - perror ("pwrite"); - /* Must rewind to blockstart if we can */ - rewind_blocks = (mtdoffset - blockstart) / meminfo.writesize; /* Not including the one we just attempted */ - rewind_bytes = (rewind_blocks * meminfo.writesize) + readlen; - if (writeoob) - rewind_bytes += (rewind_blocks + 1) * meminfo.oobsize; - if (lseek(ifd, -rewind_bytes, SEEK_CUR) == -1) { - perror("lseek"); - fprintf(stderr, "Failed to seek backwards to recover from write error\n"); - goto closeall; - } - erase.start = blockstart; - erase.length = meminfo.erasesize; - fprintf(stderr, "Erasing failed write from %08lx-%08lx\n", - (long)erase.start, (long)erase.start+erase.length-1); - if (ioctl(fd, MEMERASE, &erase) != 0) { - perror("MEMERASE"); - goto closeall; - } - - if (markbad) { - loff_t bad_addr = mtdoffset & (~(meminfo.erasesize / blockalign) + 1); - fprintf(stderr, "Marking block at %08lx bad\n", (long)bad_addr); - if (ioctl(fd, MEMSETBADBLOCK, &bad_addr)) { - perror("MEMSETBADBLOCK"); - /* But continue anyway */ - } - } - mtdoffset = blockstart + meminfo.erasesize; - imglen += rewind_blocks * meminfo.writesize; - - continue; - } - if (ifd != STDIN_FILENO) { - imglen -= readlen; - } - mtdoffset += meminfo.writesize; - } - -closeall: - close(ifd); - -restoreoob: - if (oobinfochanged == 1) { - if (ioctl (fd, MEMSETOOBSEL, &old_oobinfo) != 0) { - perror ("MEMSETOOBSEL"); - close (fd); - exit (EXIT_FAILURE); - } - } - - close(fd); - - if ((ifd != STDIN_FILENO) && (imglen > 0)) { - perror ("Data was only partially written due to error\n"); - exit (EXIT_FAILURE); - } - - /* Return happy */ - return EXIT_SUCCESS; -} |