yaffs u-boot: Fix erase for inband tags.

[yaffs2.git] / direct / yaffsfs.c

diff --git a/direct/yaffsfs.c b/direct/yaffsfs.c
index 61aee74710a92146a35d3b9d911e1adbfafb1c3c..705106e7a13e603333fbeaf15c02ca5f9d26a1fa 100644 (file)
--- a/direct/yaffsfs.c
+++ b/direct/yaffsfs.c
@@ -74,7 +74,7 @@ struct yaffsfs_FileDes {
        u8 shareWrite:1;
        int inodeId:12;         /* Index to corresponding yaffsfs_Inode */
        int handleCount:10;     /* Number of handles for this fd */
-       loff_t position;        /* current position in file */
+       Y_LOFF_T position;      /* current position in file */
 };
 
 struct yaffsfs_Handle {
@@ -1064,17 +1064,17 @@ int yaffs_close(int handle)
 }
 
 static int yaffsfs_do_read(int handle, void *vbuf, unsigned int nbyte,
-                   int isPread, loff_t offset)
+                   int isPread, Y_LOFF_T offset)
 {
        struct yaffsfs_FileDes *fd = NULL;
        struct yaffs_obj *obj = NULL;
-       loff_t pos = 0;
-       loff_t startPos = 0;
-       loff_t endPos = 0;
+       Y_LOFF_T pos = 0;
+       Y_LOFF_T startPos = 0;
+       Y_LOFF_T endPos = 0;
        int nRead = 0;
        int nToRead = 0;
        int totalRead = 0;
-       loff_t maxRead;
+       Y_LOFF_T maxRead;
        u8 *buf = (u8 *) vbuf;
 
        if (!vbuf) {
@@ -1180,19 +1180,19 @@ int yaffs_read(int handle, void *buf, unsigned int nbyte)
        return yaffsfs_do_read(handle, buf, nbyte, 0, 0);
 }
 
-int yaffs_pread(int handle, void *buf, unsigned int nbyte, loff_t offset)
+int yaffs_pread(int handle, void *buf, unsigned int nbyte, Y_LOFF_T offset)
 {
        return yaffsfs_do_read(handle, buf, nbyte, 1, offset);
 }
 
 static int yaffsfs_do_write(int handle, const void *vbuf, unsigned int nbyte,
-                    int isPwrite, loff_t offset)
+                    int isPwrite, Y_LOFF_T offset)
 {
        struct yaffsfs_FileDes *fd = NULL;
        struct yaffs_obj *obj = NULL;
-       loff_t pos = 0;
-       loff_t startPos = 0;
-       loff_t endPos;
+       Y_LOFF_T pos = 0;
+       Y_LOFF_T startPos = 0;
+       Y_LOFF_T endPos;
        int nWritten = 0;
        int totalWritten = 0;
        int write_trhrough = 0;
@@ -1297,12 +1297,12 @@ int yaffs_write(int fd, const void *buf, unsigned int nbyte)
        return yaffsfs_do_write(fd, buf, nbyte, 0, 0);
 }
 
-int yaffs_pwrite(int fd, const void *buf, unsigned int nbyte, loff_t offset)
+int yaffs_pwrite(int fd, const void *buf, unsigned int nbyte, Y_LOFF_T offset)
 {
        return yaffsfs_do_write(fd, buf, nbyte, 1, offset);
 }
 
-int yaffs_truncate(const YCHAR *path, loff_t new_size)
+int yaffs_truncate(const YCHAR *path, Y_LOFF_T new_size)
 {
        struct yaffs_obj *obj = NULL;
        struct yaffs_obj *dir = NULL;
@@ -1347,7 +1347,7 @@ int yaffs_truncate(const YCHAR *path, loff_t new_size)
        return (result) ? 0 : -1;
 }
 
-int yaffs_ftruncate(int handle, loff_t new_size)
+int yaffs_ftruncate(int handle, Y_LOFF_T new_size)
 {
        struct yaffsfs_FileDes *fd = NULL;
        struct yaffs_obj *obj = NULL;
@@ -1375,12 +1375,12 @@ int yaffs_ftruncate(int handle, loff_t new_size)
 
 }
 
-loff_t yaffs_lseek(int handle, loff_t offset, int whence)
+Y_LOFF_T yaffs_lseek(int handle, Y_LOFF_T offset, int whence)
 {
        struct yaffsfs_FileDes *fd = NULL;
        struct yaffs_obj *obj = NULL;
-       loff_t pos = -1;
-       loff_t fSize = -1;
+       Y_LOFF_T pos = -1;
+       Y_LOFF_T fSize = -1;
 
        yaffsfs_Lock();
        fd = yaffsfs_HandleToFileDes(handle);
@@ -2648,9 +2648,70 @@ int yaffs_unmount(const YCHAR *path)
        return yaffs_unmount2(path, 0);
 }
 
-loff_t yaffs_freespace(const YCHAR *path)
+int yaffs_format(const YCHAR *path,
+               int unmount_flag,
+               int force_unmount_flag,
+               int remount_flag)
 {
-       loff_t retVal = -1;
+       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;
        struct yaffs_dev *dev = NULL;
        YCHAR *dummy;
 
@@ -2677,9 +2738,9 @@ loff_t yaffs_freespace(const YCHAR *path)
        return retVal;
 }
 
-loff_t yaffs_totalspace(const YCHAR *path)
+Y_LOFF_T yaffs_totalspace(const YCHAR *path)
 {
-       loff_t retVal = -1;
+       Y_LOFF_T retVal = -1;
        struct yaffs_dev *dev = NULL;
        YCHAR *dummy;
 
@@ -2710,7 +2771,7 @@ loff_t yaffs_totalspace(const YCHAR *path)
 
 int yaffs_inodecount(const YCHAR *path)
 {
-       loff_t retVal = -1;
+       Y_LOFF_T retVal = -1;
        struct yaffs_dev *dev = NULL;
        YCHAR *dummy;