diff options
Diffstat (limited to 'ubi-utils/src/mtdinfo.c')
| -rw-r--r-- | ubi-utils/src/mtdinfo.c | 446 |
1 files changed, 0 insertions, 446 deletions
diff --git a/ubi-utils/src/mtdinfo.c b/ubi-utils/src/mtdinfo.c deleted file mode 100644 index bfd7e6d..0000000 --- a/ubi-utils/src/mtdinfo.c +++ /dev/null @@ -1,446 +0,0 @@ -/* - * Copyright (C) 2009 Nokia Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * 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., 51 - * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* - * An utility to get MTD information. - * - * Author: Artem Bityutskiy - */ - -#define PROGRAM_VERSION "1.1" -#define PROGRAM_NAME "mtdinfo" - -#include <stdint.h> -#include <stdio.h> -#include <getopt.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <mtd/mtd-user.h> - -#include <libubigen.h> -#include <libmtd.h> -#include "common.h" -#include "ubiutils-common.h" - -/* The variables below are set by command line arguments */ -struct args { - int mtdn; - unsigned int all:1; - unsigned int ubinfo:1; - unsigned int map:1; - const char *node; -}; - -static struct args args = { - .mtdn = -1, - .ubinfo = 0, - .all = 0, - .node = NULL, -}; - -static const char doc[] = PROGRAM_NAME " version " PROGRAM_VERSION - " - a tool to print MTD information."; - -static const char optionsstr[] = -"-m, --mtdn=<MTD device number> MTD device number to get information about\n" -" (deprecated option, will be removed, do not use)\n" -"-u, --ubi-info print what would UBI layout be if it was put\n" -" on this MTD device\n" -"-M, --map print eraseblock map\n" -"-a, --all print information about all MTD devices\n" -"-h, --help print help message\n" -"-V, --version print program version"; - -static const char usage[] = -"Usage 1: " PROGRAM_NAME " [-m <MTD device number>] [-u] [-M] [-h] [-V] [--mtdn <MTD device number>]\n" -"\t\t[--ubi-info] [--help] [--version]\n" -"Usage 2: " PROGRAM_NAME " <MTD device node file name> [-u] [-M] [-h] [-V] [--ubi-info] [--help]\n" -"\t\t[--version]\n" -"Example 1: " PROGRAM_NAME " - (no arguments) print general MTD information\n" -"Example 2: " PROGRAM_NAME " -m 1 - print information about MTD device number 1\n" -"Example 3: " PROGRAM_NAME " /dev/mtd0 - print information MTD device /dev/mtd0\n" -"Example 4: " PROGRAM_NAME " /dev/mtd0 -u - print information MTD device /dev/mtd0\n" -"\t\t\t\tand include UBI layout information\n" -"Example 5: " PROGRAM_NAME " -a - print information about all MTD devices\n" -"\t\t\tand include UBI layout information\n"; - -static const struct option long_options[] = { - { .name = "mtdn", .has_arg = 1, .flag = NULL, .val = 'm' }, - { .name = "ubi-info", .has_arg = 0, .flag = NULL, .val = 'u' }, - { .name = "map", .has_arg = 0, .flag = NULL, .val = 'M' }, - { .name = "all", .has_arg = 0, .flag = NULL, .val = 'a' }, - { .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[]) -{ - while (1) { - int key, error = 0; - - key = getopt_long(argc, argv, "am:uMhV", long_options, NULL); - if (key == -1) - break; - - switch (key) { - case 'a': - args.all = 1; - break; - - case 'u': - args.ubinfo = 1; - break; - - case 'm': - args.mtdn = simple_strtoul(optarg, &error); - if (error || args.mtdn < 0) - return errmsg("bad MTD device number: \"%s\"", optarg); - warnmsg("-m/--mtdn is depecated, will be removed in mtd-utils-1.4.6"); - break; - - case 'M': - args.map = 1; - break; - - case 'h': - printf("%s\n\n", doc); - printf("%s\n\n", usage); - printf("%s\n", optionsstr); - exit(EXIT_SUCCESS); - - case 'V': - printf("%s\n", PROGRAM_VERSION); - exit(EXIT_SUCCESS); - - case ':': - return errmsg("parameter is missing"); - - default: - fprintf(stderr, "Use -h for help\n"); - return -1; - } - } - - if (optind == argc - 1) - args.node = argv[optind]; - else if (optind < argc) - return errmsg("more then one MTD device specified (use -h for help)"); - - if (args.all && (args.node || args.mtdn != -1)) { - args.mtdn = -1; - args.node = NULL; - } - - if (args.map && !args.node) - return errmsg("-M requires MTD device node name"); - - return 0; -} - -static int translate_dev(libmtd_t libmtd, const char *node) -{ - int err; - struct mtd_dev_info mtd; - - err = mtd_get_dev_info(libmtd, node, &mtd); - if (err) { - if (errno == ENODEV) - return errmsg("\"%s\" does not correspond to any " - "existing MTD device", node); - return sys_errmsg("cannot get information about MTD " - "device \"%s\"", node); - } - - args.mtdn = mtd.mtd_num; - return 0; -} - -static void print_ubi_info(const struct mtd_info *mtd_info, - const struct mtd_dev_info *mtd) -{ - struct ubigen_info ui; - - if (!mtd_info->sysfs_supported) { - errmsg("cannot provide UBI info, becasue sub-page size is " - "not known"); - return; - } - - ubigen_info_init(&ui, mtd->eb_size, mtd->min_io_size, mtd->subpage_size, - 0, 1, 0); - printf("Default UBI VID header offset: %d\n", ui.vid_hdr_offs); - printf("Default UBI data offset: %d\n", ui.data_offs); - printf("Default UBI LEB size: "); - ubiutils_print_bytes(ui.leb_size, 0); - printf("\n"); - printf("Maximum UBI volumes count: %d\n", ui.max_volumes); -} - -static void print_region_map(const struct mtd_dev_info *mtd, int fd, - const region_info_t *reginfo) -{ - unsigned long start; - int i, width; - int ret_locked, errno_locked, ret_bad, errno_bad; - - printf("Eraseblock map:\n"); - - /* Figure out the number of spaces to pad w/out libm */ - for (i = 1, width = 0; i < reginfo->numblocks; i *= 10, ++width) - continue; - - /* If we don't have a fd to query, just show the bare map */ - if (fd == -1) { - ret_locked = ret_bad = -1; - errno_locked = errno_bad = ENODEV; - } else - ret_locked = ret_bad = errno_locked = errno_bad = 0; - - for (i = 0; i < reginfo->numblocks; ++i) { - start = reginfo->offset + i * reginfo->erasesize; - printf(" %*i: %08lx ", width, i, start); - - if (ret_locked != -1) { - ret_locked = mtd_is_locked(mtd, fd, i); - if (ret_locked == 1) - printf("RO "); - else - errno_locked = errno; - } - if (ret_locked != 1) - printf(" "); - - if (ret_bad != -1) { - ret_bad = mtd_is_bad(mtd, fd, i); - if (ret_bad == 1) - printf("BAD "); - else - errno_bad = errno; - } - if (ret_bad != 1) - printf(" "); - - if (((i + 1) % 4) == 0) - printf("\n"); - } - if (i % 4) - printf("\n"); - - if (ret_locked == -1 && errno_locked != EOPNOTSUPP) { - errno = errno_locked; - sys_errmsg("could not read locked block info"); - } - - if (mtd->bb_allowed && ret_bad == -1 && errno_bad != EOPNOTSUPP) { - errno = errno_bad; - sys_errmsg("could not read bad block info"); - } -} - -static void print_region_info(const struct mtd_dev_info *mtd) -{ - region_info_t reginfo; - int r, fd; - - /* If we don't have any region info, just return */ - if (!args.map && mtd->region_cnt == 0) - return; - - /* First open the device so we can query it */ - fd = open(args.node, O_RDONLY | O_CLOEXEC); - if (fd == -1) { - sys_errmsg("couldn't open MTD dev: %s", args.node); - if (mtd->region_cnt) - return; - } - - /* Walk all the regions and show the map for them */ - if (mtd->region_cnt) { - for (r = 0; r < mtd->region_cnt; ++r) { - printf("Eraseblock region %i: ", r); - if (mtd_regioninfo(fd, r, ®info) == 0) { - printf(" offset: %#x size: %#x numblocks: %#x\n", - reginfo.offset, reginfo.erasesize, - reginfo.numblocks); - if (args.map) - print_region_map(mtd, fd, ®info); - } else - printf(" info is unavailable\n"); - } - } else { - reginfo.offset = 0; - reginfo.erasesize = mtd->eb_size; - reginfo.numblocks = mtd->eb_cnt; - reginfo.regionindex = 0; - print_region_map(mtd, fd, ®info); - } - - if (fd != -1) - close(fd); -} - -static int print_dev_info(libmtd_t libmtd, const struct mtd_info *mtd_info, int mtdn) -{ - int err; - struct mtd_dev_info mtd; - - err = mtd_get_dev_info1(libmtd, mtdn, &mtd); - if (err) { - if (errno == ENODEV) - return errmsg("mtd%d does not correspond to any " - "existing MTD device", mtdn); - return sys_errmsg("cannot get information about MTD device %d", - mtdn); - } - - printf("mtd%d\n", mtd.mtd_num); - printf("Name: %s\n", mtd.name); - printf("Type: %s\n", mtd.type_str); - printf("Eraseblock size: "); - ubiutils_print_bytes(mtd.eb_size, 0); - printf("\n"); - printf("Amount of eraseblocks: %d (", mtd.eb_cnt); - ubiutils_print_bytes(mtd.size, 0); - printf(")\n"); - printf("Minimum input/output unit size: %d %s\n", - mtd.min_io_size, mtd.min_io_size > 1 ? "bytes" : "byte"); - if (mtd_info->sysfs_supported) - printf("Sub-page size: %d %s\n", - mtd.subpage_size, - mtd.subpage_size > 1 ? "bytes" : "byte"); - else if (mtd.type == MTD_NANDFLASH) - printf("Sub-page size: unknown\n"); - - if (mtd.oob_size > 0) - printf("OOB size: %d bytes\n", - mtd.oob_size); - if (mtd.region_cnt > 0) - printf("Additional erase regions: %d\n", mtd.oob_size); - if (mtd_info->sysfs_supported) - printf("Character device major/minor: %d:%d\n", - mtd.major, mtd.minor); - printf("Bad blocks are allowed: %s\n", - mtd.bb_allowed ? "true" : "false"); - printf("Device is writable: %s\n", - mtd.writable ? "true" : "false"); - - if (args.ubinfo) - print_ubi_info(mtd_info, &mtd); - - print_region_info(&mtd); - - printf("\n"); - return 0; -} - -static int print_general_info(libmtd_t libmtd, const struct mtd_info *mtd_info, - int all) -{ - int i, err, first = 1; - struct mtd_dev_info mtd; - - printf("Count of MTD devices: %d\n", mtd_info->mtd_dev_cnt); - if (mtd_info->mtd_dev_cnt == 0) - return 0; - - for (i = mtd_info->lowest_mtd_num; - i <= mtd_info->highest_mtd_num; i++) { - err = mtd_get_dev_info1(libmtd, i, &mtd); - if (err == -1) { - if (errno == ENODEV) - continue; - return sys_errmsg("libmtd failed get MTD device %d " - "information", i); - } - - if (!first) - printf(", mtd%d", i); - else { - printf("Present MTD devices: mtd%d", i); - first = 0; - } - } - printf("\n"); - printf("Sysfs interface supported: %s\n", - mtd_info->sysfs_supported ? "yes" : "no"); - - if (!all) - return 0; - - first = 1; - printf("\n"); - - for (i = mtd_info->lowest_mtd_num; - i <= mtd_info->highest_mtd_num; i++) { - err = print_dev_info(libmtd, mtd_info, i); - if (err) - return err; - } - - return 0; -} - -int main(int argc, char * const argv[]) -{ - int err; - libmtd_t libmtd; - struct mtd_info mtd_info; - - err = parse_opt(argc, argv); - if (err) - return -1; - - libmtd = libmtd_open(); - if (libmtd == NULL) { - if (errno == 0) - return errmsg("MTD is not present in the system"); - return sys_errmsg("cannot open libmtd"); - } - - err = mtd_get_info(libmtd, &mtd_info); - if (err) { - if (errno == ENODEV) - return errmsg("MTD is not present"); - return sys_errmsg("cannot get MTD information"); - } - - if (args.node) { - /* - * A character device was specified, translate this to MTD - * device number. - */ - err = translate_dev(libmtd, args.node); - if (err) - goto out_libmtd; - } - - if (args.mtdn == -1) - err = print_general_info(libmtd, &mtd_info, args.all); - else - err = print_dev_info(libmtd, &mtd_info, args.mtdn); - if (err) - goto out_libmtd; - - libmtd_close(libmtd); - return 0; - -out_libmtd: - libmtd_close(libmtd); - return -1; -} |