diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libmtd.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/lib/libmtd.c b/lib/libmtd.c index b581d80..a363e56 100644 --- a/lib/libmtd.c +++ b/lib/libmtd.c @@ -1,6 +1,7 @@ /* * Copyright (c) International Business Machines Corp., 2006 * Copyright (C) 2009 Nokia Corporation + * Copyright 2021 NXP * * 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 @@ -834,8 +835,8 @@ static int mtd_valid_erase_block(const struct mtd_dev_info *mtd, int eb) return 0; } -static int mtd_xlock(const struct mtd_dev_info *mtd, int fd, int eb, int req, - const char *sreq) +static int mtd_xlock(const struct mtd_dev_info *mtd, int fd, int eb, + int blocks, int req, const char *sreq) { int ret; struct erase_info_user ei; @@ -844,8 +845,14 @@ static int mtd_xlock(const struct mtd_dev_info *mtd, int fd, int eb, int req, if (ret) return ret; + if (blocks > 1) { + ret = mtd_valid_erase_block(mtd, eb + blocks - 1); + if (ret) + return ret; + } + ei.start = eb * mtd->eb_size; - ei.length = mtd->eb_size; + ei.length = mtd->eb_size * blocks; ret = ioctl(fd, req, &ei); if (ret < 0) @@ -853,16 +860,23 @@ static int mtd_xlock(const struct mtd_dev_info *mtd, int fd, int eb, int req, return 0; } -#define mtd_xlock(mtd, fd, eb, req) mtd_xlock(mtd, fd, eb, req, #req) +#define mtd_xlock(mtd, fd, eb, blocks, req) \ + mtd_xlock(mtd, fd, eb, blocks, req, #req) int mtd_lock(const struct mtd_dev_info *mtd, int fd, int eb) { - return mtd_xlock(mtd, fd, eb, MEMLOCK); + return mtd_xlock(mtd, fd, eb, 1, MEMLOCK); } int mtd_unlock(const struct mtd_dev_info *mtd, int fd, int eb) { - return mtd_xlock(mtd, fd, eb, MEMUNLOCK); + return mtd_xlock(mtd, fd, eb, 1, MEMUNLOCK); +} + +int mtd_unlock_multi(const struct mtd_dev_info *mtd, int fd, int eb, + int blocks) +{ + return mtd_xlock(mtd, fd, eb, blocks, MEMUNLOCK); } int mtd_erase_multi(libmtd_t desc, const struct mtd_dev_info *mtd, |