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M7350/filesystems/mtd-utils/ubi-utils/ubiformat.c
T f75098198c M7350v5_en_gpl
2024-09-09 08:57:42 +00:00

939 lines
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/*
* Copyright (C) 2008 Nokia Corporation
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* An utility to format MTD devices into UBI and flash UBI images.
*
* Author: Artem Bityutskiy
*/
/*
* Maximum amount of consequtive eraseblocks which are considered as normal by
* this utility. Otherwise it is assume that something is wrong with the flash
* or the driver, and eraseblocks are stopped being marked as bad.
*/
#define MAX_CONSECUTIVE_BAD_BLOCKS 4
#define PROGRAM_NAME "ubiformat"
#include <sys/stat.h>
#include <unistd.h>
#include <stdint.h>
#include <stdlib.h>
#include <getopt.h>
#include <fcntl.h>
#include <libubi.h>
#include <libmtd.h>
#include <libscan.h>
#include <libubigen.h>
#include <mtd_swab.h>
#include <crc32.h>
#include "common.h"
#include "ubiutils-common.h"
/* The variables below are set by command line arguments */
struct args {
unsigned int yes:1;
unsigned int quiet:1;
unsigned int verbose:1;
unsigned int override_ec:1;
unsigned int novtbl:1;
unsigned int manual_subpage;
int subpage_size;
int vid_hdr_offs;
int ubi_ver;
uint32_t image_seq;
off_t image_sz;
long long ec;
const char *image;
const char *node;
int node_fd;
};
static struct args args =
{
.ubi_ver = 1,
};
static const char doc[] = PROGRAM_NAME " version " VERSION
" - a tool to format MTD devices and flash UBI images";
static const char optionsstr[] =
"-s, --sub-page-size=<bytes> minimum input/output unit used for UBI\n"
" headers, e.g. sub-page size in case of NAND\n"
" flash (equivalent to the minimum input/output\n"
" unit size by default)\n"
"-O, --vid-hdr-offset=<offs> offset if the VID header from start of the\n"
" physical eraseblock (default is the next\n"
" minimum I/O unit or sub-page after the EC\n"
" header)\n"
"-n, --no-volume-table only erase all eraseblock and preserve erase\n"
" counters, do not write empty volume table\n"
"-f, --flash-image=<file> flash image file, or '-' for stdin\n"
"-S, --image-size=<bytes> bytes in input, if not reading from file\n"
"-e, --erase-counter=<value> use <value> as the erase counter value for all\n"
" eraseblocks\n"
"-x, --ubi-ver=<num> UBI version number to put to EC headers\n"
" (default is 1)\n"
"-Q, --image-seq=<num> 32-bit UBI image sequence number to use\n"
" (by default a random number is picked)\n"
"-y, --yes assume the answer is \"yes\" for all question\n"
" this program would otherwise ask\n"
"-q, --quiet suppress progress percentage information\n"
"-v, --verbose be verbose\n"
"-h, -?, --help print help message\n"
"-V, --version print program version\n";
static const char usage[] =
"Usage: " PROGRAM_NAME " <MTD device node file name> [-s <bytes>] [-O <offs>] [-n]\n"
"\t\t\t[-Q <num>] [-f <file>] [-S <bytes>] [-e <value>] [-x <num>] [-y] [-q] [-v] [-h]\n"
"\t\t\t[--sub-page-size=<bytes>] [--vid-hdr-offset=<offs>] [--no-volume-table]\n"
"\t\t\t[--flash-image=<file>] [--image-size=<bytes>] [--erase-counter=<value>]\n"
"\t\t\t[--image-seq=<num>] [--ubi-ver=<num>] [--yes] [--quiet] [--verbose]\n"
"\t\t\t[--help] [--version]\n\n"
"Example 1: " PROGRAM_NAME " /dev/mtd0 -y - format MTD device number 0 and do\n"
" not ask questions.\n"
"Example 2: " PROGRAM_NAME " /dev/mtd0 -q -e 0 - format MTD device number 0,\n"
" be quiet and force erase counter value 0.";
static const struct option long_options[] = {
{ .name = "sub-page-size", .has_arg = 1, .flag = NULL, .val = 's' },
{ .name = "vid-hdr-offset", .has_arg = 1, .flag = NULL, .val = 'O' },
{ .name = "no-volume-table", .has_arg = 0, .flag = NULL, .val = 'n' },
{ .name = "flash-image", .has_arg = 1, .flag = NULL, .val = 'f' },
{ .name = "image-size", .has_arg = 1, .flag = NULL, .val = 'S' },
{ .name = "yes", .has_arg = 0, .flag = NULL, .val = 'y' },
{ .name = "erase-counter", .has_arg = 1, .flag = NULL, .val = 'e' },
{ .name = "quiet", .has_arg = 0, .flag = NULL, .val = 'q' },
{ .name = "verbose", .has_arg = 0, .flag = NULL, .val = 'v' },
{ .name = "ubi-ver", .has_arg = 1, .flag = NULL, .val = 'x' },
{ .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' },
{ .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
{ NULL, 0, NULL, 0},
};
static int parse_opt(int argc, char * const argv[])
{
ubiutils_srand();
args.image_seq = rand();
while (1) {
int key, error = 0;
unsigned long int image_seq;
key = getopt_long(argc, argv, "nh?Vyqve:x:s:O:f:S:", long_options, NULL);
if (key == -1)
break;
switch (key) {
case 's':
args.subpage_size = ubiutils_get_bytes(optarg);
if (args.subpage_size <= 0)
return errmsg("bad sub-page size: \"%s\"", optarg);
if (!is_power_of_2(args.subpage_size))
return errmsg("sub-page size should be power of 2");
break;
case 'O':
args.vid_hdr_offs = simple_strtoul(optarg, &error);
if (error || args.vid_hdr_offs <= 0)
return errmsg("bad VID header offset: \"%s\"", optarg);
break;
case 'e':
args.ec = simple_strtoull(optarg, &error);
if (error || args.ec < 0)
return errmsg("bad erase counter value: \"%s\"", optarg);
if (args.ec >= EC_MAX)
return errmsg("too high erase %llu, counter, max is %u", args.ec, EC_MAX);
args.override_ec = 1;
break;
case 'f':
args.image = optarg;
break;
case 'S':
args.image_sz = ubiutils_get_bytes(optarg);
if (args.image_sz <= 0)
return errmsg("bad image-size: \"%s\"", optarg);
break;
case 'n':
args.novtbl = 1;
break;
case 'y':
args.yes = 1;
break;
case 'q':
args.quiet = 1;
break;
case 'x':
args.ubi_ver = simple_strtoul(optarg, &error);
if (error || args.ubi_ver < 0)
return errmsg("bad UBI version: \"%s\"", optarg);
break;
case 'Q':
image_seq = simple_strtoul(optarg, &error);
if (error || image_seq > 0xFFFFFFFF)
return errmsg("bad UBI image sequence number: \"%s\"", optarg);
args.image_seq = image_seq;
break;
case 'v':
args.verbose = 1;
break;
case 'V':
common_print_version();
exit(EXIT_SUCCESS);
case 'h':
case '?':
printf("%s\n\n", doc);
printf("%s\n\n", usage);
printf("%s\n", optionsstr);
exit(EXIT_SUCCESS);
case ':':
return errmsg("parameter is missing");
default:
fprintf(stderr, "Use -h for help\n");
return -1;
}
}
if (args.quiet && args.verbose)
return errmsg("using \"-q\" and \"-v\" at the same time does not make sense");
if (optind == argc)
return errmsg("MTD device name was not specified (use -h for help)");
else if (optind != argc - 1)
return errmsg("more then one MTD device specified (use -h for help)");
if (args.image && args.novtbl)
return errmsg("-n cannot be used together with -f");
args.node = argv[optind];
return 0;
}
static int want_exit(void)
{
return prompt("continue?", false) == true ? 0 : 1;
}
static int answer_is_yes(const char *msg)
{
return prompt(msg ? : "continue?", false);
}
static void print_bad_eraseblocks(const struct mtd_dev_info *mtd,
const struct ubi_scan_info *si)
{
int first = 1, eb;
if (si->bad_cnt == 0)
return;
normsg_cont("%d bad eraseblocks found, numbers: ", si->bad_cnt);
for (eb = 0; eb < mtd->eb_cnt; eb++) {
if (si->ec[eb] != EB_BAD)
continue;
if (first) {
printf("%d", eb);
first = 0;
} else
printf(", %d", eb);
}
printf("\n");
}
static int change_ech(struct ubi_ec_hdr *hdr, uint32_t image_seq,
long long ec)
{
uint32_t crc;
/* Check the EC header */
if (be32_to_cpu(hdr->magic) != UBI_EC_HDR_MAGIC)
return errmsg("bad UBI magic %#08x, should be %#08x",
be32_to_cpu(hdr->magic), UBI_EC_HDR_MAGIC);
crc = mtd_crc32(UBI_CRC32_INIT, hdr, UBI_EC_HDR_SIZE_CRC);
if (be32_to_cpu(hdr->hdr_crc) != crc)
return errmsg("bad CRC %#08x, should be %#08x\n",
crc, be32_to_cpu(hdr->hdr_crc));
hdr->image_seq = cpu_to_be32(image_seq);
hdr->ec = cpu_to_be64(ec);
crc = mtd_crc32(UBI_CRC32_INIT, hdr, UBI_EC_HDR_SIZE_CRC);
hdr->hdr_crc = cpu_to_be32(crc);
return 0;
}
static int drop_ffs(const struct mtd_dev_info *mtd, const void *buf, int len)
{
int i;
for (i = len - 1; i >= 0; i--)
if (((const uint8_t *)buf)[i] != 0xFF)
break;
/* The resulting length must be aligned to the minimum flash I/O size */
len = i + 1;
len = (len + mtd->min_io_size - 1) / mtd->min_io_size;
len *= mtd->min_io_size;
return len;
}
static int open_file(off_t *sz)
{
int fd;
if (!strcmp(args.image, "-")) {
if (args.image_sz == 0)
return errmsg("must use '-S' with non-zero value when reading from stdin");
*sz = args.image_sz;
fd = dup(STDIN_FILENO);
if (fd < 0)
return sys_errmsg("failed to dup stdin");
} else {
struct stat st;
if (stat(args.image, &st))
return sys_errmsg("cannot open \"%s\"", args.image);
*sz = st.st_size;
fd = open(args.image, O_RDONLY);
if (fd == -1)
return sys_errmsg("cannot open \"%s\"", args.image);
}
return fd;
}
static int read_all(int fd, void *buf, size_t len)
{
while (len > 0) {
ssize_t l = read(fd, buf, len);
if (l == 0)
return errmsg("eof reached; %zu bytes remaining", len);
else if (l > 0) {
buf += l;
len -= l;
} else if (errno == EINTR || errno == EAGAIN)
continue;
else
return sys_errmsg("reading failed; %zu bytes remaining", len);
}
return 0;
}
/*
* Returns %-1 if consecutive bad blocks exceeds the
* MAX_CONSECUTIVE_BAD_BLOCKS and returns %0 otherwise.
*/
static int consecutive_bad_check(int eb)
{
static int consecutive_bad_blocks = 1;
static int prev_bb = -1;
if (prev_bb == -1)
prev_bb = eb;
if (eb == prev_bb + 1)
consecutive_bad_blocks += 1;
else
consecutive_bad_blocks = 1;
prev_bb = eb;
if (consecutive_bad_blocks >= MAX_CONSECUTIVE_BAD_BLOCKS) {
if (!args.quiet)
printf("\n");
return errmsg("consecutive bad blocks exceed limit: %d, bad flash?",
MAX_CONSECUTIVE_BAD_BLOCKS);
}
return 0;
}
/* TODO: we should actually torture the PEB before marking it as bad */
static int mark_bad(const struct mtd_dev_info *mtd, struct ubi_scan_info *si, int eb)
{
int err;
if (!args.yes)
if (!answer_is_yes("mark it as bad?"))
return -1;
if (!args.quiet)
normsg_cont("marking block %d bad", eb);
if (!args.quiet)
printf("\n");
if (!mtd->bb_allowed) {
if (!args.quiet)
printf("\n");
return errmsg("bad blocks not supported by this flash");
}
err = mtd_mark_bad(mtd, args.node_fd, eb);
if (err)
return err;
si->bad_cnt += 1;
si->ec[eb] = EB_BAD;
return consecutive_bad_check(eb);
}
static int flash_image(libmtd_t libmtd, const struct mtd_dev_info *mtd,
const struct ubigen_info *ui, struct ubi_scan_info *si)
{
int fd, img_ebs, eb, written_ebs = 0, divisor, skip_data_read = 0;
off_t st_size;
fd = open_file(&st_size);
if (fd < 0)
return fd;
img_ebs = st_size / mtd->eb_size;
if (img_ebs > si->good_cnt) {
sys_errmsg("file \"%s\" is too large (%lld bytes)",
args.image, (long long)st_size);
goto out_close;
}
if (st_size % mtd->eb_size) {
return sys_errmsg("file \"%s\" (size %lld bytes) is not multiple of ""eraseblock size (%d bytes)",
args.image, (long long)st_size, mtd->eb_size);
goto out_close;
}
verbose(args.verbose, "will write %d eraseblocks", img_ebs);
divisor = img_ebs;
for (eb = 0; eb < mtd->eb_cnt; eb++) {
int err, new_len;
char buf[mtd->eb_size];
long long ec;
if (!args.quiet && !args.verbose) {
printf("\r" PROGRAM_NAME ": flashing eraseblock %d -- %2lld %% complete ",
eb, (long long)(eb + 1) * 100 / divisor);
fflush(stdout);
}
if (si->ec[eb] == EB_BAD) {
divisor += 1;
continue;
}
if (args.verbose) {
normsg_cont("eraseblock %d: erase", eb);
fflush(stdout);
}
err = mtd_erase(libmtd, mtd, args.node_fd, eb);
if (err) {
if (!args.quiet)
printf("\n");
sys_errmsg("failed to erase eraseblock %d", eb);
if (errno != EIO)
goto out_close;
if (mark_bad(mtd, si, eb))
goto out_close;
continue;
}
if (!skip_data_read) {
err = read_all(fd, buf, mtd->eb_size);
if (err) {
sys_errmsg("failed to read eraseblock %d from \"%s\"",
written_ebs, args.image);
goto out_close;
}
}
skip_data_read = 0;
if (args.override_ec)
ec = args.ec;
else if (si->ec[eb] <= EC_MAX)
ec = si->ec[eb] + 1;
else
ec = si->mean_ec;
if (args.verbose) {
printf(", change EC to %lld", ec);
fflush(stdout);
}
err = change_ech((struct ubi_ec_hdr *)buf, ui->image_seq, ec);
if (err) {
errmsg("bad EC header at eraseblock %d of \"%s\"",
written_ebs, args.image);
goto out_close;
}
if (args.verbose) {
printf(", write data\n");
fflush(stdout);
}
new_len = drop_ffs(mtd, buf, mtd->eb_size);
err = mtd_write(libmtd, mtd, args.node_fd, eb, 0, buf, new_len,
NULL, 0, 0);
if (err) {
sys_errmsg("cannot write eraseblock %d", eb);
if (errno != EIO)
goto out_close;
err = mtd_torture(libmtd, mtd, args.node_fd, eb);
if (err) {
if (mark_bad(mtd, si, eb))
goto out_close;
}
/*
* We have to make sure that we do not read next block
* of data from the input image or stdin - we have to
* write buf first instead.
*/
skip_data_read = 1;
continue;
}
if (++written_ebs >= img_ebs)
break;
}
if (!args.quiet && !args.verbose)
printf("\n");
close(fd);
return eb + 1;
out_close:
close(fd);
return -1;
}
static int format(libmtd_t libmtd, const struct mtd_dev_info *mtd,
const struct ubigen_info *ui, struct ubi_scan_info *si,
int start_eb, int novtbl)
{
int eb, err, write_size;
struct ubi_ec_hdr *hdr;
struct ubi_vtbl_record *vtbl;
int eb1 = -1, eb2 = -1;
long long ec1 = -1, ec2 = -1;
write_size = UBI_EC_HDR_SIZE + mtd->subpage_size - 1;
write_size /= mtd->subpage_size;
write_size *= mtd->subpage_size;
hdr = malloc(write_size);
if (!hdr)
return sys_errmsg("cannot allocate %d bytes of memory", write_size);
memset(hdr, 0xFF, write_size);
for (eb = start_eb; eb < mtd->eb_cnt; eb++) {
long long ec;
if (!args.quiet && !args.verbose) {
printf("\r" PROGRAM_NAME ": formatting eraseblock %d -- %2lld %% complete ",
eb, (long long)(eb + 1 - start_eb) * 100 / (mtd->eb_cnt - start_eb));
fflush(stdout);
}
if (si->ec[eb] == EB_BAD)
continue;
if (args.override_ec)
ec = args.ec;
else if (si->ec[eb] <= EC_MAX)
ec = si->ec[eb] + 1;
else
ec = si->mean_ec;
ubigen_init_ec_hdr(ui, hdr, ec);
if (args.verbose) {
normsg_cont("eraseblock %d: erase", eb);
fflush(stdout);
}
err = mtd_erase(libmtd, mtd, args.node_fd, eb);
if (err) {
if (!args.quiet)
printf("\n");
sys_errmsg("failed to erase eraseblock %d", eb);
if (errno != EIO)
goto out_free;
if (mark_bad(mtd, si, eb))
goto out_free;
continue;
}
if ((eb1 == -1 || eb2 == -1) && !novtbl) {
if (eb1 == -1) {
eb1 = eb;
ec1 = ec;
} else if (eb2 == -1) {
eb2 = eb;
ec2 = ec;
}
if (args.verbose)
printf(", do not write EC, leave for vtbl\n");
continue;
}
if (args.verbose) {
printf(", write EC %lld\n", ec);
fflush(stdout);
}
err = mtd_write(libmtd, mtd, args.node_fd, eb, 0, hdr,
write_size, NULL, 0, 0);
if (err) {
if (!args.quiet && !args.verbose)
printf("\n");
sys_errmsg("cannot write EC header (%d bytes buffer) to eraseblock %d",
write_size, eb);
if (errno != EIO) {
if (args.subpage_size != mtd->min_io_size)
normsg("may be sub-page size is incorrect?");
goto out_free;
}
err = mtd_torture(libmtd, mtd, args.node_fd, eb);
if (err) {
if (mark_bad(mtd, si, eb))
goto out_free;
}
continue;
}
}
if (!args.quiet && !args.verbose)
printf("\n");
if (!novtbl) {
if (eb1 == -1 || eb2 == -1) {
errmsg("no eraseblocks for volume table");
goto out_free;
}
verbose(args.verbose, "write volume table to eraseblocks %d and %d", eb1, eb2);
vtbl = ubigen_create_empty_vtbl(ui);
if (!vtbl)
goto out_free;
err = ubigen_write_layout_vol(ui, eb1, eb2, ec1, ec2, vtbl,
args.node_fd, NULL);
free(vtbl);
if (err) {
errmsg("cannot write layout volume");
goto out_free;
}
}
free(hdr);
return 0;
out_free:
free(hdr);
return -1;
}
int main(int argc, char * const argv[])
{
int err, verbose;
libmtd_t libmtd;
struct mtd_info mtd_info;
struct mtd_dev_info mtd;
libubi_t libubi;
struct ubigen_info ui;
struct ubi_scan_info *si;
libmtd = libmtd_open();
if (!libmtd)
return errmsg("MTD subsystem is not present");
err = parse_opt(argc, argv);
if (err)
goto out_close_mtd;
err = mtd_get_info(libmtd, &mtd_info);
if (err) {
if (errno == ENODEV)
errmsg("MTD is not present");
sys_errmsg("cannot get MTD information");
goto out_close_mtd;
}
err = mtd_get_dev_info(libmtd, args.node, &mtd);
if (err) {
sys_errmsg("cannot get information about \"%s\"", args.node);
goto out_close_mtd;
}
if (!is_power_of_2(mtd.min_io_size)) {
errmsg("min. I/O size is %d, but should be power of 2",
mtd.min_io_size);
goto out_close_mtd;
}
if (!mtd_info.sysfs_supported) {
/*
* Linux kernels older than 2.6.30 did not support sysfs
* interface, and it is impossible to find out sub-page
* size in these kernels. This is why users should
* provide -s option.
*/
if (args.subpage_size == 0) {
warnmsg("your MTD system is old and it is impossible "
"to detect sub-page size. Use -s to get rid "
"of this warning");
normsg("assume sub-page to be %d", mtd.subpage_size);
} else {
mtd.subpage_size = args.subpage_size;
args.manual_subpage = 1;
}
} else if (args.subpage_size && args.subpage_size != mtd.subpage_size) {
mtd.subpage_size = args.subpage_size;
args.manual_subpage = 1;
}
if (args.manual_subpage) {
/* Do some sanity check */
if (args.subpage_size > mtd.min_io_size) {
errmsg("sub-page cannot be larger than min. I/O unit");
goto out_close_mtd;
}
if (mtd.min_io_size % args.subpage_size) {
errmsg("min. I/O unit size should be multiple of "
"sub-page size");
goto out_close_mtd;
}
}
args.node_fd = open(args.node, O_RDWR);
if (args.node_fd == -1) {
sys_errmsg("cannot open \"%s\"", args.node);
goto out_close_mtd;
}
/* Validate VID header offset if it was specified */
if (args.vid_hdr_offs != 0) {
if (args.vid_hdr_offs % 8) {
errmsg("VID header offset has to be multiple of min. I/O unit size");
goto out_close;
}
if (args.vid_hdr_offs + (int)UBI_VID_HDR_SIZE > mtd.eb_size) {
errmsg("bad VID header offset");
goto out_close;
}
}
if (!mtd.writable) {
errmsg("mtd%d (%s) is a read-only device", mtd.mtd_num, args.node);
goto out_close;
}
/* Make sure this MTD device is not attached to UBI */
libubi = libubi_open();
if (libubi) {
int ubi_dev_num;
err = mtd_num2ubi_dev(libubi, mtd.mtd_num, &ubi_dev_num);
libubi_close(libubi);
if (!err) {
errmsg("please, first detach mtd%d (%s) from ubi%d",
mtd.mtd_num, args.node, ubi_dev_num);
goto out_close;
}
}
if (!args.quiet) {
normsg_cont("mtd%d (%s), size ", mtd.mtd_num, mtd.type_str);
ubiutils_print_bytes(mtd.size, 1);
printf(", %d eraseblocks of ", mtd.eb_cnt);
ubiutils_print_bytes(mtd.eb_size, 1);
printf(", min. I/O size %d bytes\n", mtd.min_io_size);
}
if (args.quiet)
verbose = 0;
else if (args.verbose)
verbose = 2;
else
verbose = 1;
err = ubi_scan(&mtd, args.node_fd, &si, verbose);
if (err) {
errmsg("failed to scan mtd%d (%s)", mtd.mtd_num, args.node);
goto out_close;
}
if (si->good_cnt == 0) {
errmsg("all %d eraseblocks are bad", si->bad_cnt);
goto out_free;
}
if (si->good_cnt < 2 && (!args.novtbl || args.image)) {
errmsg("too few non-bad eraseblocks (%d) on mtd%d",
si->good_cnt, mtd.mtd_num);
goto out_free;
}
if (!args.quiet) {
if (si->ok_cnt)
normsg("%d eraseblocks have valid erase counter, mean value is %lld",
si->ok_cnt, si->mean_ec);
if (si->empty_cnt)
normsg("%d eraseblocks are supposedly empty", si->empty_cnt);
if (si->corrupted_cnt)
normsg("%d corrupted erase counters", si->corrupted_cnt);
print_bad_eraseblocks(&mtd, si);
}
if (si->alien_cnt) {
if (!args.yes || !args.quiet)
warnmsg("%d of %d eraseblocks contain non-UBI data",
si->alien_cnt, si->good_cnt);
if (!args.yes && want_exit()) {
if (args.yes && !args.quiet)
printf("yes\n");
goto out_free;
}
}
if (!args.override_ec && si->empty_cnt < si->good_cnt) {
int percent = ((double)si->ok_cnt)/si->good_cnt * 100;
/*
* Make sure the majority of eraseblocks have valid
* erase counters.
*/
if (percent < 50) {
if (!args.yes || !args.quiet) {
warnmsg("only %d of %d eraseblocks have valid erase counter",
si->ok_cnt, si->good_cnt);
normsg("erase counter 0 will be used for all eraseblocks");
normsg("note, arbitrary erase counter value may be specified using -e option");
}
if (!args.yes && want_exit()) {
if (args.yes && !args.quiet)
printf("yes\n");
goto out_free;
}
args.ec = 0;
args.override_ec = 1;
} else if (percent < 95) {
if (!args.yes || !args.quiet) {
warnmsg("only %d of %d eraseblocks have valid erase counter",
si->ok_cnt, si->good_cnt);
normsg("mean erase counter %lld will be used for the rest of eraseblock",
si->mean_ec);
}
if (!args.yes && want_exit()) {
if (args.yes && !args.quiet)
printf("yes\n");
goto out_free;
}
args.ec = si->mean_ec;
args.override_ec = 1;
}
}
if (!args.quiet && args.override_ec)
normsg("use erase counter %lld for all eraseblocks", args.ec);
ubigen_info_init(&ui, mtd.eb_size, mtd.min_io_size, mtd.subpage_size,
args.vid_hdr_offs, args.ubi_ver, args.image_seq, 0);
if (si->vid_hdr_offs != -1 && ui.vid_hdr_offs != si->vid_hdr_offs) {
/*
* Hmm, what we read from flash and what we calculated using
* min. I/O unit size and sub-page size differs.
*/
if (!args.yes || !args.quiet) {
warnmsg("VID header and data offsets on flash are %d and %d, "
"which is different to requested offsets %d and %d",
si->vid_hdr_offs, si->data_offs, ui.vid_hdr_offs,
ui.data_offs);
normsg_cont("use new offsets %d and %d? ",
ui.vid_hdr_offs, ui.data_offs);
}
if (args.yes || answer_is_yes(NULL)) {
if (args.yes && !args.quiet)
printf("yes\n");
} else
ubigen_info_init(&ui, mtd.eb_size, mtd.min_io_size, 0,
si->vid_hdr_offs, args.ubi_ver,
args.image_seq, 0);
normsg("use offsets %d and %d", ui.vid_hdr_offs, ui.data_offs);
}
if (args.image) {
err = flash_image(libmtd, &mtd, &ui, si);
if (err < 0)
goto out_free;
err = format(libmtd, &mtd, &ui, si, err, 1);
if (err)
goto out_free;
} else {
err = format(libmtd, &mtd, &ui, si, 0, args.novtbl);
if (err)
goto out_free;
}
ubi_scan_free(si);
close(args.node_fd);
libmtd_close(libmtd);
return 0;
out_free:
ubi_scan_free(si);
out_close:
close(args.node_fd);
out_close_mtd:
libmtd_close(libmtd);
return -1;
}
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