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- make it compile and shrink it a little bit (~-110 bytes)

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text	   data	    bss	    dec	    hex	filename
   1533	      4	      0	   1537	    601	miscutils/flash_eraseall.o.old
   1415	      4	      0	   1419	    58b	miscutils/flash_eraseall.o
- add some FIXMEs
This commit is contained in:
Bernhard Reutner-Fischer 2009-02-18 13:26:29 +00:00
parent 0d22d1755c
commit 7d9d251543
1 changed files with 33 additions and 36 deletions
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69
miscutils/flash_eraseall.c
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@ -1,35 +1,30 @@
/* vi: set sw=4 ts=4: */
/* eraseall.c -- erase the whole of a MTD device /* eraseall.c -- erase the whole of a MTD device
*
Ported to busybox from mtd-utils. * Ported to busybox from mtd-utils.
*
Copyright (C) 2000 Arcom Control System Ltd * Copyright (C) 2000 Arcom Control System Ltd
*
Renamed to flash_eraseall.c * Renamed to flash_eraseall.c
*
This program is free software; you can redistribute it and/or modify * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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
*/ */
#include "libbb.h" #include "libbb.h"
#include <mtd/mtd-user.h> #include <mtd/mtd-user.h>
#include <mtd/jffs2-user.h> #include <mtd/jffs2-user.h>
#define OPTION_J (1 << 0) #define OPTION_J (1 << 0)
#define OPTION_Q (1 << 1) #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, static uint32_t crc32(uint32_t val, const void *ss, int len,
uint32_t *crc32_table) 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) 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; struct jffs2_unknown_node cleanmarker;
mtd_info_t meminfo; mtd_info_t meminfo;
int fd, clmpos = 0, clmlen = 8; int fd, clmpos = 0, clmlen = 8;
erase_info_t erase; erase_info_t erase;
struct stat st; struct stat st;
int isNAND, bbtest = 1;
unsigned int flags; unsigned int flags;
char *mtd_name; char *mtd_name;
@ -73,7 +67,7 @@ int flash_eraseall_main(int argc, char **argv)
xioctl(fd, MEMGETINFO, &meminfo); xioctl(fd, MEMGETINFO, &meminfo);
erase.length = meminfo.erasesize; erase.length = meminfo.erasesize;
isNAND = meminfo.type == MTD_NANDFLASH ? 1 : 0; flags |= bbtest | ((meminfo.type == MTD_NANDFLASH) << _bitNAND);
if (flags & OPTION_J) { if (flags & OPTION_J) {
uint32_t *crc32_table; 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.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER); cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
if (!isNAND) if (!(flags & isNAND))
cleanmarker.totlen = cpu_to_je32 (sizeof (struct jffs2_unknown_node)); cleanmarker.totlen = cpu_to_je32 (sizeof (struct jffs2_unknown_node));
else { else {
struct nand_oobinfo oobinfo; struct nand_oobinfo oobinfo;
@ -125,10 +119,10 @@ int flash_eraseall_main(int argc, char **argv)
for (erase.start = 0; erase.start < meminfo.size; for (erase.start = 0; erase.start < meminfo.size;
erase.start += meminfo.erasesize) { erase.start += meminfo.erasesize) {
if (bbtest) { if (flags & bbtest) {
int ret; int ret;
loff_t offset = erase.start; loff_t offset = erase.start;
ret = ioctl(fd, MEMGETBADBLOCK, &offset); ret = ioctl(fd, MEMGETBADBLOCK, &offset);
if (ret > 0) { if (ret > 0) {
if (!(flags & OPTION_Q)) if (!(flags & OPTION_Q))
@ -139,13 +133,13 @@ int flash_eraseall_main(int argc, char **argv)
* types e.g. NOR * types e.g. NOR
*/ */
if (errno == EOPNOTSUPP) { if (errno == EOPNOTSUPP) {
bbtest = 0; flags =~ bbtest;
if (isNAND) if (flags & isNAND)
bb_error_msg_and_die("%s: Bad block check not available", bb_error_msg_and_die("%s: Bad block check not available",
mtd_name); mtd_name);
} else { } else {
bb_error_msg_and_die("\n%s: MTD get bad block failed: %s", bb_perror_msg_and_die("\n%s: MTD %s failure",
mtd_name, strerror(errno)); mtd_name, "get bad block ");
} }
} }
} }
@ -160,19 +154,20 @@ int flash_eraseall_main(int argc, char **argv)
continue; continue;
/* write cleanmarker */ /* write cleanmarker */
if (isNAND) { if (flags & isNAND) {
struct mtd_oob_buf oob; struct mtd_oob_buf oob;
oob.ptr = (unsigned char *) &cleanmarker; oob.ptr = (unsigned char *) &cleanmarker;
oob.start = erase.start + clmpos; oob.start = erase.start + clmpos;
oob.length = clmlen; oob.length = clmlen;
xioctl (fd, MEMWRITEOOB, &oob); xioctl (fd, MEMWRITEOOB, &oob);
} else { } else {
if (lseek (fd, erase.start, SEEK_SET) < 0) { 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; continue;
} }
if (write (fd , &cleanmarker, sizeof (cleanmarker)) != sizeof (cleanmarker)) { 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; continue;
} }
} }
@ -181,8 +176,10 @@ int flash_eraseall_main(int argc, char **argv)
} }
if (!(flags & OPTION_Q)) { if (!(flags & OPTION_Q)) {
show_progress(&meminfo, &erase); show_progress(&meminfo, &erase);
printf("\n"); bb_putchar('\n');
} }
if (ENABLE_FEATURE_CLEAN_UP)
close(fd);
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }