busybox

/*

 * nandwrite and nanddump ported to busybox from mtd-utils

 *

 * Author: Baruch Siach <baruch@tkos.co.il>, Orex Computed Radiography

 *

 * Licensed under GPLv2, see file LICENSE in this source tree.

 *

 * TODO: add support for large (>4GB) MTD devices

 */

//config:config NANDWRITE

//config:   bool "nandwrite (5.9 kb)"

//config:   default y

//config:   select PLATFORM_LINUX

//config:   help

//config:   Write to the specified MTD device, with bad blocks awareness

//config:

//config:config NANDDUMP

//config:   bool "nanddump (6.3 kb)"

//config:   default y

//config:   select PLATFORM_LINUX

//config:   help

//config:   Dump the content of raw NAND chip

​

//applet:IF_NANDWRITE(APPLET(nandwrite, BB_DIR_USR_SBIN, BB_SUID_DROP))

//applet:IF_NANDDUMP(APPLET_ODDNAME(nanddump, nandwrite, BB_DIR_USR_SBIN, BB_SUID_DROP, nanddump))

​

//kbuild:lib-$(CONFIG_NANDWRITE) += nandwrite.o

//kbuild:lib-$(CONFIG_NANDDUMP) += nandwrite.o

​

//usage:#define nandwrite_trivial_usage

//usage:    "[-np] [-s ADDR] MTD_DEVICE [FILE]"

//usage:#define nandwrite_full_usage "\n\n"

//usage:    "Write to MTD_DEVICE\n"

//usage:     "\n    -n  Write without ecc"

//usage:     "\n    -p  Pad to page size"

//usage:     "\n    -s ADDR Start address"

​

//usage:#define nanddump_trivial_usage

//usage:    "[-no]" IF_LONG_OPTS(" [--bb padbad|skipbad]") " [-s ADDR] [-l LEN] [-f FILE] MTD_DEVICE"

//usage:#define nanddump_full_usage "\n\n"

//usage:    "Dump MTD_DEVICE\n"

//usage:     "\n    -n  Read without ecc"

//usage:     "\n    -o  Dump oob data"

//usage:     "\n    -s ADDR Start address"

//usage:     "\n    -l LEN  Length"

//usage:     "\n    -f FILE Dump to file ('-' for stdout)"

//usage:     IF_LONG_OPTS(

//usage:     "\n    --bb METHOD"

//usage:     "\n        skipbad: skip bad blocks"

//usage:     "\n        padbad: substitute bad blocks by 0xff (default)"

//usage:     )

​

#include "libbb.h"

#include <mtd/mtd-user.h>

​

/* Old headers call it MTD_MODE_RAW.

 * FIXME: In kernel headers, MTD_FILE_MODE_RAW is not a define,

 * it's an enum. How I can test for existence of an enum?

 */

#if !defined(MTD_FILE_MODE_RAW)

# define MTD_FILE_MODE_RAW 3

#endif

​