add 'mtd refresh' command

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

diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c
index 9025240e1e85059517211d0be71a8a6b0ee209ed..85b069f813949d9c231d77456077670f3d7fe8e1 100644 (file)
--- a/package/mtd/src/mtd.c
+++ b/package/mtd/src/mtd.c
@@ -241,6 +241,25 @@ mtd_erase(const char *mtd)
 
 }
 
+int
+mtd_refresh(const char *mtd)
+{
+       int fd;
+
+       fd = mtd_open(mtd, O_RDWR | O_SYNC);
+       if(fd < 0) {
+               fprintf(stderr, "Could not open mtd device: %s\n", mtd);
+               exit(1);
+       }
+       if (ioctl(fd, MTDREFRESH, NULL)) {
+               fprintf(stderr, "Failed to refresh the MTD device\n");
+               close(fd);
+               exit(1);
+       }
+       close(fd);
+       return 0;
+}
+
 int
 mtd_write(int imagefd, const char *mtd)
 {
@@ -318,6 +337,7 @@ void usage(void)
        "The device is in the format of mtdX (eg: mtd4) or its label.\n"
        "mtd recognizes these commands:\n"
        "        unlock                  unlock the device\n"
+       "        refresh                 refresh mtd partition\n"
        "        erase                   erase all data on device\n"
        "        write <imagefile>|-     write <imagefile> (use - for stdin) to device\n"
        "Following options are available:\n"
@@ -338,7 +358,8 @@ int main (int argc, char **argv)
        enum {
                CMD_ERASE,
                CMD_WRITE,
-               CMD_UNLOCK
+               CMD_UNLOCK,
+               CMD_REFRESH
        } cmd;
        
        erase[0] = NULL;
@@ -380,6 +401,9 @@ int main (int argc, char **argv)
        if ((strcmp(argv[0], "unlock") == 0) && (argc == 2)) {
                cmd = CMD_UNLOCK;
                device = argv[1];
+       } else if ((strcmp(argv[0], "refresh") == 0) && (argc == 2)) {
+               cmd = CMD_REFRESH;
+               device = argv[1];
        } else if ((strcmp(argv[0], "erase") == 0) && (argc == 2)) {
                cmd = CMD_ERASE;
                device = argv[1];
@@ -451,6 +475,13 @@ int main (int argc, char **argv)
                        if (quiet < 2)
                                fprintf(stderr, "\n");
                        break;
+               case CMD_REFRESH:
+                       if (quiet < 2)
+                               fprintf(stderr, "Refreshing mtd partition %s ... ");
+                       mtd_refresh(device);
+                       if (quiet < 2)
+                               fprintf(stderr, "\n");
+                       break;
        }
 
        sync();