yaffsfs: Add yaffs_format function

[yaffs2.git] / direct / yaffsfs.c

diff --git a/direct/yaffsfs.c b/direct/yaffsfs.c
index d208e25df0b4fdf002bae73547caddcbc7892107..705106e7a13e603333fbeaf15c02ca5f9d26a1fa 100644 (file)
--- a/direct/yaffsfs.c
+++ b/direct/yaffsfs.c
@@ -2648,6 +2648,67 @@ int yaffs_unmount(const YCHAR *path)
        return yaffs_unmount2(path, 0);
 }
 
+int yaffs_format(const YCHAR *path,
+               int unmount_flag,
+               int force_unmount_flag,
+               int remount_flag)
+{
+       int retVal = 0;
+       struct yaffs_dev *dev = NULL;
+       int result;
+
+       if (!path) {
+               yaffsfs_SetError(-EFAULT);
+               return -1;
+       }
+
+       if (yaffsfs_CheckPath(path) < 0) {
+               yaffsfs_SetError(-ENAMETOOLONG);
+               return -1;
+       }
+
+       yaffsfs_Lock();
+       dev = yaffsfs_FindMountPoint(path);
+
+       if (dev) {
+               int was_mounted = dev->is_mounted;
+
+               if (dev->is_mounted && unmount_flag) {
+                       int inUse;
+                       yaffs_flush_whole_cache(dev);
+                       yaffs_checkpoint_save(dev);
+                       inUse = yaffsfs_IsDevBusy(dev);
+                       if (!inUse || force_unmount_flag) {
+                               if (inUse)
+                                       yaffsfs_BreakDeviceHandles(dev);
+                               yaffs_deinitialise(dev);
+                       }
+               }
+
+               if(dev->is_mounted) {
+                               yaffsfs_SetError(-EBUSY);
+                               retVal = -1;
+               } else {
+                       yaffs_format_dev(dev);
+                       if(was_mounted && remount_flag) {
+                               result = yaffs_guts_initialise(dev);
+                               if (result == YAFFS_FAIL) {
+                                       yaffsfs_SetError(-ENOMEM);
+                                       retVal = -1;
+                               }
+                       }
+               }
+       } else {
+               yaffsfs_SetError(-ENODEV);
+               retVal = -1;
+       }
+
+       yaffsfs_Unlock();
+       return retVal;
+
+}
+
+
 Y_LOFF_T yaffs_freespace(const YCHAR *path)
 {
        Y_LOFF_T retVal = -1;