add 'mtd refresh' command

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8439 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c
index 9025240..85b069f 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();

diff --git a/package/mtd/src/mtd.h b/package/mtd/src/mtd.h
index 8b83afd..6ce6261 100644 (file)
--- a/package/mtd/src/mtd.h
+++ b/package/mtd/src/mtd.h
@@ -96,6 +96,7 @@ struct region_info_user {
 #define MEMGETREGIONINFO       _IOWR('M', 8, struct region_info_user)
 #define        MEMREADDATA             _IOWR('M', 9, struct mtd_oob_buf)
 #define        MEMWRITEDATA            _IOWR('M', 10, struct mtd_oob_buf)
+#define MTDREFRESH                             _IO('M', 23)
 
 #ifndef __KERNEL__