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-rw-r--r--miscutils/flash_eraseall.c69
1 files changed, 33 insertions, 36 deletions
diff --git a/miscutils/flash_eraseall.c b/miscutils/flash_eraseall.c
index 79028d780..e0e07ae69 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;
}