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-rw-r--r--flash_lock.c81
-rw-r--r--flash_unlock.c22
2 files changed, 18 insertions, 85 deletions
diff --git a/flash_lock.c b/flash_lock.c
index 164eaa4..33f76c7 100644
--- a/flash_lock.c
+++ b/flash_lock.c
@@ -1,83 +1,8 @@
/*
- * FILE flash_lock.c
- *
- * This utility locks one or more sectors of flash device.
+ * flash_{lock,unlock}
*
+ * utilities for locking/unlocking sectors of flash devices
*/
#define PROGRAM_NAME "flash_lock"
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <time.h>
-#include <sys/ioctl.h>
-#include <sys/mount.h>
-#include <string.h>
-
-#include <mtd/mtd-user.h>
-
-int main(int argc, char *argv[])
-{
- int fd;
- struct mtd_info_user mtdInfo;
- struct erase_info_user mtdLockInfo;
- int count;
-
- /*
- * Parse command line options
- */
- if (argc < 2) {
- fprintf(stderr, "USAGE: %s <mtd device> <offset> <block count>\n", PROGRAM_NAME);
- exit(1);
- } else if (strncmp(argv[1], "/dev/mtd", 8) != 0) {
- fprintf(stderr, "'%s' is not a MTD device. Must specify mtd device: /dev/mtd?\n", argv[1]);
- exit(1);
- }
-
- fd = open(argv[1], O_RDWR);
- if (fd < 0) {
- fprintf(stderr, "Could not open mtd device: %s\n", argv[1]);
- exit(1);
- }
-
- if (ioctl(fd, MEMGETINFO, &mtdInfo)) {
- fprintf(stderr, "Could not get MTD device info from %s\n", argv[1]);
- close(fd);
- exit(1);
- }
-
- if (argc > 2)
- mtdLockInfo.start = strtol(argv[2], NULL, 0);
- else
- mtdLockInfo.start = 0;
- if (mtdLockInfo.start > mtdInfo.size) {
- fprintf(stderr, "%#x is beyond device size %#x\n",
- mtdLockInfo.start, mtdInfo.size);
- close(fd);
- exit(1);
- }
-
- if (argc > 3) {
- count = strtol(argv[3], NULL, 0);
- if (count == -1)
- mtdLockInfo.length = mtdInfo.size - mtdInfo.erasesize;
- else
- mtdLockInfo.length = mtdInfo.erasesize * count;
- } else {
- mtdLockInfo.length = mtdInfo.size - mtdInfo.erasesize;
- }
- if (mtdLockInfo.start + mtdLockInfo.length > mtdInfo.size) {
- fprintf(stderr, "lock range is more than device supports\n");
- exit(1);
- }
-
- if (ioctl(fd, MEMLOCK, &mtdLockInfo)) {
- fprintf(stderr, "Could not lock MTD device: %s\n", argv[1]);
- close(fd);
- exit(1);
- }
-
- return 0;
-}
+#include "flash_unlock.c"
diff --git a/flash_unlock.c b/flash_unlock.c
index 690825d..759a5bc 100644
--- a/flash_unlock.c
+++ b/flash_unlock.c
@@ -1,11 +1,17 @@
/*
- * FILE flash_unlock.c
- *
- * This utility unlock all sectors of flash device.
+ * flash_{lock,unlock}
*
+ * utilities for locking/unlocking sectors of flash devices
*/
+#ifndef PROGRAM_NAME
#define PROGRAM_NAME "flash_unlock"
+#define FLASH_MSG "unlock"
+#define FLASH_UNLOCK 1
+#else
+#define FLASH_MSG "lock"
+#define FLASH_UNLOCK 0
+#endif
#include <unistd.h>
#include <stdlib.h>
@@ -20,7 +26,7 @@
int main(int argc, char *argv[])
{
- int fd;
+ int fd, request;
struct mtd_info_user mtdInfo;
struct erase_info_user mtdLockInfo;
int count;
@@ -69,12 +75,14 @@ int main(int argc, char *argv[])
mtdLockInfo.length = mtdInfo.size - mtdInfo.erasesize;
}
if (mtdLockInfo.start + mtdLockInfo.length > mtdInfo.size) {
- fprintf(stderr, "unlock range is more than device supports\n");
+ fprintf(stderr, "%s range is more than device supports\n", FLASH_MSG);
exit(1);
}
- if (ioctl(fd, MEMUNLOCK, &mtdLockInfo)) {
- fprintf(stderr, "Could not unlock MTD device: %s\n", argv[1]);
+ request = FLASH_UNLOCK ? MEMUNLOCK : MEMLOCK;
+ if (ioctl(fd, request, &mtdLockInfo)) {
+ fprintf(stderr, "Could not %s MTD device: %s\n",
+ FLASH_MSG, argv[1]);
close(fd);
exit(1);
}