*
* Renamed to flash_eraseall.c
*
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
+//usage:#define flash_eraseall_trivial_usage
+//usage: "[-jNq] MTD_DEVICE"
+//usage:#define flash_eraseall_full_usage "\n\n"
+//usage: "Erase an MTD device\n"
+//usage: "\n -j Format the device for jffs2"
+//usage: "\n -N Don't skip bad blocks"
+//usage: "\n -q Don't display progress messages"
+
#include "libbb.h"
#include <mtd/mtd-user.h>
-#include <mtd/jffs2-user.h>
-
-#define OPTION_J (1 << 0)
-#define OPTION_Q (1 << 1)
-#define IS_NAND (1 << 2)
-#define BBTEST (1 << 3)
-
-struct globals {
- /* This is used in the cpu_to_je/je_to_cpu macros in jffs2_user.h */
- int tgt_endian;
-};
-#define G (*(struct globals*)&bb_common_bufsiz1)
-#define target_endian (G.tgt_endian)
-#define INIT_G() do { \
- target_endian = __BYTE_ORDER; \
-} while (0)
-
-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;
-}
+#include <linux/jffs2.h>
+
+#define OPTION_J (1 << 0)
+#define OPTION_N (1 << 1)
+#define OPTION_Q (1 << 2)
+#define IS_NAND (1 << 3)
+
+/* mtd/jffs2-user.h used to have this atrocity:
+extern int target_endian;
+
+#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); })
+
+#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)})
+
+#define je16_to_cpu(x) (t16((x).v16))
+#define je32_to_cpu(x) (t32((x).v32))
+#define jemode_to_cpu(x) (t32((x).m))
+
+but mtd/jffs2-user.h is gone now (at least 2.6.31.6 does not have it anymore)
+*/
+
+/* 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.",
- (unsigned)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;
unsigned int flags;
char *mtd_name;
- INIT_G();
opt_complementary = "=1";
- flags = BBTEST | getopt32(argv, "jq");
+ flags = getopt32(argv, "jNq");
mtd_name = argv[optind];
- xstat(mtd_name, &st);
+ 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;
if (meminfo.type == MTD_NANDFLASH)
if (clmlen > 8)
clmlen = 8;
if (clmlen == 0)
- bb_error_msg_and_die("Autoplacement selected and no empty space in oob");
+ bb_error_msg_and_die("autoplacement selected and no empty space in oob");
} else {
/* Legacy mode */
switch (meminfo.oobsize) {
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 */
for (erase.start = 0; erase.start < meminfo.size;
erase.start += meminfo.erasesize) {
- if (flags & BBTEST) {
+ if (!(flags & OPTION_N)) {
int ret;
loff_t offset = erase.start;
* types e.g. NOR
*/
if (errno == EOPNOTSUPP) {
- flags &= ~BBTEST;
+ flags |= OPTION_N;
if (flags & IS_NAND)
bb_error_msg_and_die("bad block check not available");
} else {