diff options
| -rw-r--r-- | miscutils/flash_eraseall.c | 69 |
1 files changed, 33 insertions, 36 deletions
diff --git a/miscutils/flash_eraseall.c b/miscutils/flash_eraseall.c index 79028d7..e0e07ae 100644 --- a/miscutils/flash_eraseall.c +++ b/miscutils/flash_eraseall.c @@ -1,35 +1,30 @@ +/* vi: set sw=4 ts=4: */ /* eraseall.c -- erase the whole of a MTD device - - Ported to busybox from mtd-utils. - - Copyright (C) 2000 Arcom Control System Ltd - - Renamed to flash_eraseall.c - - 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * Ported to busybox from mtd-utils. + * + * Copyright (C) 2000 Arcom Control System Ltd + * + * Renamed to flash_eraseall.c + * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ #include "libbb.h" - #include <mtd/mtd-user.h> #include <mtd/jffs2-user.h> #define OPTION_J (1 << 0) #define OPTION_Q (1 << 1) +#define _bitNAND (2) +#define isNAND (1 << _bitNAND) +#define bbtest (1 << 3) -int target_endian = __BYTE_ORDER; +/* This is used in the cpu_to_je/je_to_cpu macros in jffs2_user.h */ +/* FIXME: target_endian should be const! + * FIXME: Also it sounds more sensible to use our own existing SWAP_ macros. + */ +/* const */ int target_endian = __BYTE_ORDER; static uint32_t crc32(uint32_t val, const void *ss, int len, uint32_t *crc32_table) @@ -49,14 +44,13 @@ static void show_progress(mtd_info_t *meminfo, erase_info_t *erase) } int flash_eraseall_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int flash_eraseall_main(int argc, char **argv) +int flash_eraseall_main(int argc UNUSED_PARAM, char **argv) { struct jffs2_unknown_node cleanmarker; mtd_info_t meminfo; int fd, clmpos = 0, clmlen = 8; erase_info_t erase; struct stat st; - int isNAND, bbtest = 1; unsigned int flags; char *mtd_name; @@ -73,7 +67,7 @@ int flash_eraseall_main(int argc, char **argv) xioctl(fd, MEMGETINFO, &meminfo); erase.length = meminfo.erasesize; - isNAND = meminfo.type == MTD_NANDFLASH ? 1 : 0; + flags |= bbtest | ((meminfo.type == MTD_NANDFLASH) << _bitNAND); if (flags & OPTION_J) { uint32_t *crc32_table; @@ -82,7 +76,7 @@ int flash_eraseall_main(int argc, char **argv) cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK); cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER); - if (!isNAND) + if (!(flags & isNAND)) cleanmarker.totlen = cpu_to_je32 (sizeof (struct jffs2_unknown_node)); else { struct nand_oobinfo oobinfo; @@ -125,10 +119,10 @@ int flash_eraseall_main(int argc, char **argv) for (erase.start = 0; erase.start < meminfo.size; erase.start += meminfo.erasesize) { - if (bbtest) { + if (flags & bbtest) { int ret; - loff_t offset = erase.start; + ret = ioctl(fd, MEMGETBADBLOCK, &offset); if (ret > 0) { if (!(flags & OPTION_Q)) @@ -139,13 +133,13 @@ int flash_eraseall_main(int argc, char **argv) * types e.g. NOR */ if (errno == EOPNOTSUPP) { - bbtest = 0; - if (isNAND) + flags =~ bbtest; + if (flags & isNAND) bb_error_msg_and_die("%s: Bad block check not available", mtd_name); } else { - bb_error_msg_and_die("\n%s: MTD get bad block failed: %s", - mtd_name, strerror(errno)); + bb_perror_msg_and_die("\n%s: MTD %s failure", + mtd_name, "get bad block "); } } } @@ -160,19 +154,20 @@ int flash_eraseall_main(int argc, char **argv) continue; /* write cleanmarker */ - if (isNAND) { + if (flags & isNAND) { struct mtd_oob_buf oob; + oob.ptr = (unsigned char *) &cleanmarker; oob.start = erase.start + clmpos; oob.length = clmlen; xioctl (fd, MEMWRITEOOB, &oob); } else { if (lseek (fd, erase.start, SEEK_SET) < 0) { - bb_error_msg("\n%s: MTD lseek failure: %s", mtd_name, strerror(errno)); + bb_perror_msg("\n%s: MTD %s failure", mtd_name, "seek"); continue; } if (write (fd , &cleanmarker, sizeof (cleanmarker)) != sizeof (cleanmarker)) { - bb_error_msg("\n%s: MTD write failure: %s", mtd_name, strerror(errno)); + bb_perror_msg("\n%s: MTD %s failure", mtd_name, "write"); continue; } } @@ -181,8 +176,10 @@ int flash_eraseall_main(int argc, char **argv) } if (!(flags & OPTION_Q)) { show_progress(&meminfo, &erase); - printf("\n"); + bb_putchar('\n'); } + if (ENABLE_FEATURE_CLEAN_UP) + close(fd); return EXIT_SUCCESS; } |