+/* 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
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
+ */
- Ported to busybox from mtd-utils.
+#include "libbb.h"
+#include <mtd/mtd-user.h>
+#include <linux/jffs2.h>
- Copyright (C) 2000 Arcom Control System Ltd
+#define OPTION_J (1 << 0)
+#define OPTION_Q (1 << 1)
+#define IS_NAND (1 << 2)
+#define BBTEST (1 << 3)
- Renamed to flash_eraseall.c
+/* mtd/jffs2-user.h used to have this atrocity:
+extern int target_endian;
- 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.
+#define t16(x) ({ __u16 __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_16(__b); })
+#define t32(x) ({ __u32 __b = (x); (target_endian==__BYTE_ORDER)?__b:bswap_32(__b); })
- 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.
+#define cpu_to_je16(x) ((jint16_t){t16(x)})
+#define cpu_to_je32(x) ((jint32_t){t32(x)})
+#define cpu_to_jemode(x) ((jmode_t){t32(x)})
- 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
- */
+#define je16_to_cpu(x) (t16((x).v16))
+#define je32_to_cpu(x) (t32((x).v32))
+#define jemode_to_cpu(x) (t32((x).m))
-#include "libbb.h"
-
-#include <mtd/mtd-user.h>
-#include <mtd/jffs2-user.h>
+but mtd/jffs2-user.h is gone now (at least 2.6.31.6 does not have it anymore)
+*/
-#define OPTION_J (1 << 0)
-#define OPTION_Q (1 << 1)
-
-int target_endian = __BYTE_ORDER;
-
-static uint32_t crc32(uint32_t val, const void *ss, int len,
- uint32_t *crc32_table)
-{
- const unsigned char *s = ss;
- while (--len >= 0)
- val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8);
- return val;
-}
+/* We always use native endianness */
+#undef cpu_to_je16
+#undef cpu_to_je32
+#define cpu_to_je16(v) ((jint16_t){(v)})
+#define cpu_to_je32(v) ((jint32_t){(v)})
static void show_progress(mtd_info_t *meminfo, erase_info_t *erase)
{
- printf("\rErasing %d Kibyte @ %x -- %2llu %% complete.",
- meminfo->erasesize / 1024, erase->start,
- (unsigned long long) erase->start * 100 / meminfo->size);
- fflush(stdout);
+ printf("\rErasing %u Kibyte @ %x - %2u%% complete.",
+ (unsigned)meminfo->erasesize / 1024,
+ erase->start,
+ (unsigned) ((unsigned long long) erase->start * 100 / meminfo->size)
+ );
+ fflush_all();
}
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;
+ int fd, clmpos, clmlen;
erase_info_t erase;
struct stat st;
- int isNAND, bbtest = 1;
unsigned int flags;
char *mtd_name;
opt_complementary = "=1";
- flags = getopt32(argv, "jq");
+ flags = BBTEST | getopt32(argv, "jq");
- mtd_name = *(argv + optind);
- xstat(mtd_name, &st);
+ mtd_name = argv[optind];
+ fd = xopen(mtd_name, O_RDWR);
+ fstat(fd, &st);
if (!S_ISCHR(st.st_mode))
bb_error_msg_and_die("%s: not a char device", mtd_name);
- fd = xopen(mtd_name, O_RDWR);
-
xioctl(fd, MEMGETINFO, &meminfo);
-
erase.length = meminfo.erasesize;
- isNAND = meminfo.type == MTD_NANDFLASH ? 1 : 0;
+ if (meminfo.type == MTD_NANDFLASH)
+ flags |= IS_NAND;
+ clmpos = 0;
+ clmlen = 8;
if (flags & OPTION_J) {
uint32_t *crc32_table;
crc32_table = crc32_filltable(NULL, 0);
- cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
- cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
- if (!isNAND)
- cleanmarker.totlen = cpu_to_je32 (sizeof (struct jffs2_unknown_node));
+ cleanmarker.magic = cpu_to_je16(JFFS2_MAGIC_BITMASK);
+ cleanmarker.nodetype = cpu_to_je16(JFFS2_NODETYPE_CLEANMARKER);
+ if (!(flags & IS_NAND))
+ cleanmarker.totlen = cpu_to_je32(sizeof(struct jffs2_unknown_node));
else {
struct nand_oobinfo oobinfo;
/* Check for autoplacement */
if (oobinfo.useecc == MTD_NANDECC_AUTOPLACE) {
/* Get the position of the free bytes */
- if (!oobinfo.oobfree[0][1])
- bb_error_msg_and_die("Autoplacement selected and no empty space in oob");
-
clmpos = oobinfo.oobfree[0][0];
clmlen = oobinfo.oobfree[0][1];
if (clmlen > 8)
clmlen = 8;
+ if (clmlen == 0)
+ bb_error_msg_and_die("autoplacement selected and no empty space in oob");
} else {
/* Legacy mode */
switch (meminfo.oobsize) {
break;
case 16:
clmpos = 8;
- clmlen = 8;
+ /*clmlen = 8;*/
break;
case 64:
clmpos = 16;
- clmlen = 8;
+ /*clmlen = 8;*/
break;
}
}
cleanmarker.totlen = cpu_to_je32(8);
}
- cleanmarker.hdr_crc = cpu_to_je32(crc32(0, &cleanmarker, sizeof(struct jffs2_unknown_node) - 4,
- crc32_table));
+ cleanmarker.hdr_crc = cpu_to_je32(
+ crc32_block_endian0(0, &cleanmarker, sizeof(struct jffs2_unknown_node) - 4, crc32_table)
+ );
}
+ /* Don't want to destroy progress indicator by bb_error_msg's */
+ applet_name = xasprintf("\n%s: %s", applet_name, mtd_name);
+
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))
bb_info_msg("\nSkipping bad block at 0x%08x", erase.start);
continue;
- } else if (ret < 0) {
+ }
+ if (ret < 0) {
/* Black block table is not available on certain flash
* types e.g. NOR
*/
if (errno == EOPNOTSUPP) {
- bbtest = 0;
- if (isNAND)
- bb_error_msg_and_die("%s: Bad block check not available",
- mtd_name);
+ flags &= ~BBTEST;
+ if (flags & IS_NAND)
+ bb_error_msg_and_die("bad block check not available");
} else {
- bb_error_msg_and_die("\n%s: MTD get bad block failed: %s",
- mtd_name, strerror(errno));
+ bb_perror_msg_and_die("MEMGETBADBLOCK error");
}
}
}
continue;
/* write cleanmarker */
- if (isNAND) {
+ if (flags & IS_NAND) {
struct mtd_oob_buf oob;
+
oob.ptr = (unsigned char *) &cleanmarker;
oob.start = erase.start + clmpos;
oob.length = clmlen;
- xioctl (fd, MEMWRITEOOB, &oob);
+ 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));
+ xlseek(fd, erase.start, SEEK_SET);
+ /* if (lseek(fd, erase.start, SEEK_SET) < 0) {
+ bb_perror_msg("MTD %s failure", "seek");
continue;
- }
- if (write (fd , &cleanmarker, sizeof (cleanmarker)) != sizeof (cleanmarker)) {
- bb_error_msg("\n%s: MTD write failure: %s", mtd_name, strerror(errno));
+ } */
+ xwrite(fd, &cleanmarker, sizeof(cleanmarker));
+ /* if (write(fd, &cleanmarker, sizeof(cleanmarker)) != sizeof(cleanmarker)) {
+ bb_perror_msg("MTD %s failure", "write");
continue;
- }
+ } */
}
if (!(flags & OPTION_Q))
printf(" Cleanmarker written at %x.", erase.start);
}
if (!(flags & OPTION_Q)) {
show_progress(&meminfo, &erase);
- printf("\n");
+ bb_putchar('\n');
}
+ if (ENABLE_FEATURE_CLEAN_UP)
+ close(fd);
return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff