diff --git a/commands/Kconfig b/commands/Kconfig index 9519a44..1724391 100644 --- a/commands/Kconfig +++ b/commands/Kconfig @@ -694,7 +694,6 @@ config CMD_UBIFORMAT tristate depends on MTD_UBI - select LIBMTD select LIBSCAN select LIBUBIGEN prompt "ubiformat" diff --git a/include/mtd/libmtd.h b/include/mtd/libmtd.h deleted file mode 100644 index 65c390a..0000000 --- a/include/mtd/libmtd.h +++ /dev/null @@ -1,149 +0,0 @@ -/* - * Copyright (C) 2008, 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 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. - * Author: Artem Bityutskiy - * - * MTD library. - */ - -#ifndef __LIBMTD_H__ -#define __LIBMTD_H__ - -/* Maximum MTD device name length */ -#define MTD_NAME_MAX 127 -/* Maximum MTD device type string length */ -#define MTD_TYPE_MAX 64 - -/** - * struct mtd_dev_info - information about an MTD device. - * @node: node pointing to device - * @type: flash type (constants like %MTD_NANDFLASH defined in mtd-abi.h) - * @type_str: static R/O flash type string - * @name: device name - * @size: device size in bytes - * @eb_cnt: count of eraseblocks - * @eb_size: eraseblock size - * @min_io_size: minimum input/output unit size - * @subpage_size: sub-page size - * @oob_size: OOB size (zero if the device does not have OOB area) - * @region_cnt: count of additional erase regions - * @writable: zero if the device is read-only - * @bb_allowed: non-zero if the MTD device may have bad eraseblocks - */ -struct mtd_dev_info -{ - const char *node; - int type; - const char type_str[MTD_TYPE_MAX + 1]; - long long size; - int eb_cnt; - int eb_size; - int min_io_size; - int subpage_size; - int oob_size; - int region_cnt; - unsigned int writable:1; - unsigned int bb_allowed:1; -}; - -/** - * mtd_get_dev_info - get information about an MTD device. - * @desc: MTD library descriptor - * @node: name of the MTD device node - * @mtd: the MTD device information is returned here - * - * This function gets information about MTD device defined by the @node device - * node file and saves this information in the @mtd object. Returns %0 in case - * of success and %-1 in case of failure. If MTD subsystem is not present in the - * system, or the MTD device does not exist, errno is set to @ENODEV. - */ -int mtd_get_dev_info(const char *node, struct mtd_dev_info *mtd); - -/** - * libmtd_erase - erase an eraseblock. - * @desc: MTD library descriptor - * @mtd: MTD device description object - * @fd: MTD device node file descriptor - * @eb: eraseblock to erase - * - * This function erases eraseblock @eb of MTD device described by @fd. Returns - * %0 in case of success and %-1 in case of failure. - */ -int libmtd_erase(const struct mtd_dev_info *mtd, int fd, int eb); - -/** - * mtd_torture - torture an eraseblock. - * @desc: MTD library descriptor - * @mtd: MTD device description object - * @fd: MTD device node file descriptor - * @eb: eraseblock to torture - * - * This function tortures eraseblock @eb. Returns %0 in case of success and %-1 - * in case of failure. - */ -int mtd_torture(const struct mtd_dev_info *mtd, int fd, int eb); - -/** - * mtd_is_bad - check if eraseblock is bad. - * @mtd: MTD device description object - * @fd: MTD device node file descriptor - * @eb: eraseblock to check - * - * This function checks if eraseblock @eb is bad. Returns %0 if not, %1 if yes, - * and %-1 in case of failure. - */ -int mtd_is_bad(const struct mtd_dev_info *mtd, int fd, int eb); - -/** - * mtd_mark_bad - mark an eraseblock as bad. - * @mtd: MTD device description object - * @fd: MTD device node file descriptor - * @eb: eraseblock to mark as bad - * - * This function marks eraseblock @eb as bad. Returns %0 in case of success and - * %-1 in case of failure. - */ -int mtd_mark_bad(const struct mtd_dev_info *mtd, int fd, int eb); - -/** - * mtd_read - read data from an MTD device. - * @mtd: MTD device description object - * @fd: MTD device node file descriptor - * @eb: eraseblock to read from - * @offs: offset withing the eraseblock to read from - * @buf: buffer to read data to - * @len: how many bytes to read - * - * This function reads @len bytes of data from eraseblock @eb and offset @offs - * of the MTD device defined by @mtd and stores the read data at buffer @buf. - * Returns %0 in case of success and %-1 in case of failure. - */ -int libmtd_read(const struct mtd_dev_info *mtd, int fd, int eb, int offs, - void *buf, int len); - -/** - * mtd_write - write data to an MTD device. - * @mtd: MTD device description object - * @fd: MTD device node file descriptor - * @eb: eraseblock to write to - * @offs: offset withing the eraseblock to write to - * @buf: buffer to write - * @len: how many bytes to write - * - * This function writes @len bytes of data to eraseblock @eb and offset @offs - * of the MTD device defined by @mtd. Returns %0 in case of success and %-1 in - * case of failure. - */ -int libmtd_write(const struct mtd_dev_info *mtd, int fd, int eb, int offs, - void *buf, int len); - -#endif /* __LIBMTD_H__ */ diff --git a/lib/Kconfig b/lib/Kconfig index f051751..d5f99ae 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -52,9 +52,6 @@ config LIBUBIGEN bool -config LIBMTD - bool - config STMP_DEVICE bool diff --git a/lib/Makefile b/lib/Makefile index 44ba25b..b6da848 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -44,7 +44,6 @@ obj-$(CONFIG_QSORT) += qsort.o obj-$(CONFIG_LIBSCAN) += libscan.o obj-$(CONFIG_LIBUBIGEN) += libubigen.o -obj-$(CONFIG_LIBMTD) += libmtd.o obj-y += gui/ obj-$(CONFIG_XYMODEM) += xymodem.o obj-y += unlink-recursive.o diff --git a/lib/libmtd.c b/lib/libmtd.c deleted file mode 100644 index 56672bd..0000000 --- a/lib/libmtd.c +++ /dev/null @@ -1,368 +0,0 @@ -/* - * Copyright (C) 2009 Nokia Corporation - * Copyright (C) 2012 Wolfram Sang, Pengutronix e.K. - * - * 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. - * - * Author: Artem Bityutskiy - * Author: Wolfram Sang - * - * This file is part of the MTD library. Based on pre-2.6.30 kernels support, - * now adapted to barebox. - * - * NOTE: No support for 64 bit sizes yet! - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define PROGRAM_NAME "libmtd" - -static inline int mtd_ioctl_error(const struct mtd_dev_info *mtd, int eb, - const char *sreq) -{ - return sys_errmsg("%s ioctl failed for eraseblock %d (%s)", - sreq, eb, mtd->node); -} - -static int mtd_valid_erase_block(const struct mtd_dev_info *mtd, int eb) -{ - if (eb < 0 || eb >= mtd->eb_cnt) { - errmsg("bad eraseblock number %d, %s has %d eraseblocks", - eb, mtd->node, mtd->eb_cnt); - errno = EINVAL; - return -1; - } - return 0; -} - -int libmtd_erase(const struct mtd_dev_info *mtd, int fd, int eb) -{ - int ret; - struct erase_info_user ei; - - ret = mtd_valid_erase_block(mtd, eb); - if (ret) - return ret; - - ei.start = (__u64)eb * mtd->eb_size; - ei.length = mtd->eb_size; - - ret = ioctl(fd, MEMERASE, &ei); - if (ret < 0) - return mtd_ioctl_error(mtd, eb, "MEMERASE"); - return 0; -} - -/* Patterns to write to a physical eraseblock when torturing it */ -static uint8_t patterns[] = {0xa5, 0x5a, 0x0}; - -/** - * check_pattern - check if buffer contains only a certain byte pattern. - * @buf: buffer to check - * @patt: the pattern to check - * @size: buffer size in bytes - * - * This function returns %1 in there are only @patt bytes in @buf, and %0 if - * something else was also found. - */ -static int check_pattern(const void *buf, uint8_t patt, int size) -{ - int i; - - for (i = 0; i < size; i++) - if (((const uint8_t *)buf)[i] != patt) - return 0; - return 1; -} - -int mtd_torture(const struct mtd_dev_info *mtd, int fd, int eb) -{ - int err, i, patt_count; - void *buf; - - normsg("run torture test for PEB %d", eb); - patt_count = ARRAY_SIZE(patterns); - - buf = xmalloc(mtd->eb_size); - - for (i = 0; i < patt_count; i++) { - err = libmtd_erase(mtd, fd, eb); - if (err) - goto out; - - /* Make sure the PEB contains only 0xFF bytes */ - err = libmtd_read(mtd, fd, eb, 0, buf, mtd->eb_size); - if (err) - goto out; - - err = check_pattern(buf, 0xFF, mtd->eb_size); - if (err == 0) { - errmsg("erased PEB %d, but a non-0xFF byte found", eb); - errno = EIO; - goto out; - } - - /* Write a pattern and check it */ - memset(buf, patterns[i], mtd->eb_size); - err = libmtd_write(mtd, fd, eb, 0, buf, mtd->eb_size); - if (err) - goto out; - - memset(buf, ~patterns[i], mtd->eb_size); - err = libmtd_read(mtd, fd, eb, 0, buf, mtd->eb_size); - if (err) - goto out; - - err = check_pattern(buf, patterns[i], mtd->eb_size); - if (err == 0) { - errmsg("pattern %x checking failed for PEB %d", - patterns[i], eb); - errno = EIO; - goto out; - } - } - - err = 0; - normsg("PEB %d passed torture test, do not mark it a bad", eb); - -out: - free(buf); - return -1; -} - -int mtd_is_bad(const struct mtd_dev_info *mtd, int fd, int eb) -{ - int ret; - loff_t seek; - - ret = mtd_valid_erase_block(mtd, eb); - if (ret) - return ret; - - if (!mtd->bb_allowed) - return 0; - - seek = (loff_t)eb * mtd->eb_size; - ret = ioctl(fd, MEMGETBADBLOCK, &seek); - if (ret == -1) - return mtd_ioctl_error(mtd, eb, "MEMGETBADBLOCK"); - return ret; -} - -int mtd_mark_bad(const struct mtd_dev_info *mtd, int fd, int eb) -{ - int ret; - loff_t seek; - - if (!mtd->bb_allowed) { - errno = EINVAL; - return -1; - } - - ret = mtd_valid_erase_block(mtd, eb); - if (ret) - return ret; - - seek = (loff_t)eb * mtd->eb_size; - ret = ioctl(fd, MEMSETBADBLOCK, &seek); - if (ret == -1) - return mtd_ioctl_error(mtd, eb, "MEMSETBADBLOCK"); - return 0; -} - -int libmtd_read(const struct mtd_dev_info *mtd, int fd, int eb, int offs, - void *buf, int len) -{ - int ret, rd = 0; - loff_t seek; - - ret = mtd_valid_erase_block(mtd, eb); - if (ret) - return ret; - - if (offs < 0 || offs + len > mtd->eb_size) { - errmsg("bad offset %d or length %d, %s eraseblock size is %d", - offs, len, mtd->node, mtd->eb_size); - errno = EINVAL; - return -1; - } - - /* Seek to the beginning of the eraseblock */ - seek = (loff_t)eb * mtd->eb_size + offs; - if (lseek(fd, seek, SEEK_SET) != seek) - return sys_errmsg("cannot seek %s to offset %llu", - mtd->node, (unsigned long long)seek); - - while (rd < len) { - ret = read(fd, buf, len); - if (ret < 0) - return sys_errmsg("cannot read %d bytes from %s (eraseblock %d, offset %d)", - len, mtd->node, eb, offs); - rd += ret; - } - - return 0; -} - -int libmtd_write(const struct mtd_dev_info *mtd, int fd, int eb, int offs, - void *buf, int len) -{ - int ret; - loff_t seek; - - ret = mtd_valid_erase_block(mtd, eb); - if (ret) - return ret; - - if (offs < 0 || offs + len > mtd->eb_size) { - errmsg("bad offset %d or length %d, %s eraseblock size is %d", - offs, len, mtd->node, mtd->eb_size); - errno = EINVAL; - return -1; - } - if (offs % mtd->subpage_size) { - errmsg("write offset %d is not aligned to %s min. I/O size %d", - offs, mtd->node, mtd->subpage_size); - errno = EINVAL; - return -1; - } - if (len % mtd->subpage_size) { - errmsg("write length %d is not aligned to %s min. I/O size %d", - len, mtd->node, mtd->subpage_size); - errno = EINVAL; - return -1; - } - - /* Seek to the beginning of the eraseblock */ - seek = (loff_t)eb * mtd->eb_size + offs; - if (lseek(fd, seek, SEEK_SET) != seek) - return sys_errmsg("cannot seek %s to offset %llu", - mtd->node, (unsigned long long)seek); - - ret = write(fd, buf, len); - if (ret != len) - return sys_errmsg("cannot write %d bytes to %s (eraseblock %d, offset %d)", - len, mtd->node, eb, offs); - - return 0; -} - -/** - * mtd_get_dev_info - fill the mtd_dev_info structure - * @node: name of the MTD device node - * @mtd: the MTD device information is returned here - */ -int mtd_get_dev_info(const char *node, struct mtd_dev_info *mtd) -{ - struct mtd_info_user ui; - int fd, ret; - loff_t offs = 0; - - memset(mtd, '\0', sizeof(struct mtd_dev_info)); - - mtd->node = node; - - fd = open(node, O_RDWR); - if (fd < 0) - return sys_errmsg("cannot open \"%s\"", node); - - if (ioctl(fd, MEMGETINFO, &ui)) { - sys_errmsg("MEMGETINFO ioctl request failed"); - goto out_close; - } - - ret = ioctl(fd, MEMGETBADBLOCK, &offs); - if (ret == -1) { - if (errno != EOPNOTSUPP) { - sys_errmsg("MEMGETBADBLOCK ioctl failed"); - goto out_close; - } - errno = 0; - mtd->bb_allowed = 0; - } else - mtd->bb_allowed = 1; - - mtd->type = ui.type; - mtd->size = ui.size; - mtd->eb_size = ui.erasesize; - mtd->min_io_size = ui.writesize; - mtd->oob_size = ui.oobsize; - mtd->subpage_size = ui.subpagesize; - - if (mtd->min_io_size <= 0) { - errmsg("%s has insane min. I/O unit size %d", - node, mtd->min_io_size); - goto out_close; - } - if (mtd->eb_size <= 0 || mtd->eb_size < mtd->min_io_size) { - errmsg("%s has insane eraseblock size %d", - node, mtd->eb_size); - goto out_close; - } - if (mtd->size <= 0 || mtd->size < mtd->eb_size) { - errmsg("%s has insane size %lld", - node, mtd->size); - goto out_close; - } - - mtd->eb_cnt = mtd_user_div_by_eb(ui.size, &ui); - - switch(mtd->type) { - case MTD_ABSENT: - errmsg("%s (%s) is removable and is not present", - mtd->node, node); - goto out_close; - case MTD_RAM: - strcpy((char *)mtd->type_str, "ram"); - break; - case MTD_ROM: - strcpy((char *)mtd->type_str, "rom"); - break; - case MTD_NORFLASH: - strcpy((char *)mtd->type_str, "nor"); - break; - case MTD_NANDFLASH: - strcpy((char *)mtd->type_str, "nand"); - break; - case MTD_DATAFLASH: - strcpy((char *)mtd->type_str, "dataflash"); - break; - case MTD_UBIVOLUME: - strcpy((char *)mtd->type_str, "ubi"); - break; - default: - goto out_close; - } - - if (ui.flags & MTD_WRITEABLE) - mtd->writable = 1; - - close(fd); - - return 0; - -out_close: - close(fd); - return -1; -}