mtd: base-files: Unify dual-firmware devices (Linksys)

[openwrt/openwrt.git] / package / system / mtd / src / linksys_bootcount_fix.c

diff --git a/package/system/mtd/src/linksys_bootcount_fix.c b/package/system/mtd/src/linksys_bootcount_fix.c
deleted file mode 100644 (file)
index 3fc3801..0000000
--- a/package/system/mtd/src/linksys_bootcount_fix.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Linksys boot counter reset code for mtd
- *
- * Copyright (C) 2013 Jonas Gorski <jogo@openwrt.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License v2
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <endian.h>
-#include <string.h>
-#include <errno.h>
-#include <stdint.h>
-
-#include <sys/ioctl.h>
-#include <mtd/mtd-user.h>
-
-#include "mtd.h"
-
-#define BOOTCOUNT_MAGIC        0x20110811
-
-struct bootcounter {
-       uint32_t magic;
-       uint32_t count;
-       uint32_t checksum;
-};
-
-static char page[2048];
-
-int mtd_resetbc(const char *mtd)
-{
-       struct mtd_info_user mtd_info;
-       struct bootcounter *curr = (struct bootcounter *)page;
-       unsigned int i;
-       int last_count = 0;
-       int num_bc;
-       int fd;
-       int ret;
-
-       fd = mtd_check_open(mtd);
-
-       if (ioctl(fd, MEMGETINFO, &mtd_info) < 0) {
-               fprintf(stderr, "failed to get mtd info!\n");
-               return -1;
-       }
-
-       num_bc = mtd_info.size / 16;
-
-       for (i = 0; i < num_bc; i++) {
-               pread(fd, curr, sizeof(*curr), i * 16);
-
-               if (curr->magic != (BOOTCOUNT_MAGIC) && curr->magic != 0xffffffff) {
-                       fprintf(stderr, "unexpected magic %08x, bailing out\n", curr->magic);
-                       goto out;
-               }
-
-               if (curr->magic == 0xffffffff)
-                       break;
-
-               last_count = curr->count;
-       }
-
-       /* no need to do writes when last boot count is already 0 */
-       if (last_count == 0)
-               goto out;
-
-
-       if (i == num_bc) {
-               struct erase_info_user erase_info;
-               erase_info.start = 0;
-               erase_info.length = mtd_info.size;
-
-               /* erase block */
-               ret = ioctl(fd, MEMERASE, &erase_info);
-               if (ret < 0) {
-                       fprintf(stderr, "failed to erase block: %i\n", ret);
-                       return -1;
-               }
-
-               i = 0;
-       }
-
-       memset(curr, 0xff, 16);
-
-       curr->magic = BOOTCOUNT_MAGIC;
-       curr->count = 0;
-       curr->checksum = BOOTCOUNT_MAGIC;
-
-       ret = pwrite(fd, curr, 16, i * 16);
-       if (ret < 0)
-               fprintf(stderr, "failed to write: %i\n", ret);
-       sync();
-out:
-       close(fd);
-
-       return 0;
-}