Changeset 773 for soft/giet_vm/giet_fat32/fat32.h

Timestamp:

Feb 4, 2016, 4:55:22 PM (8 years ago)

Author:

alain

Message:

Fix several bugs related to new files or directories creation:

• The first_free_cluster computation in _fat_init has been corrected.
• The generation of SFN 8-3 names has been modified to pass the fsck_msdos check.
• The number of clusters occupied by a directory is now stored in the <is_dir> field of inode.

File:

• soft/giet_vm/giet_fat32/fat32.h (modified) (3 diffs)

soft/giet_vm/giet_fat32/fat32.h

@@ -144 +144 @@
 
 /********************************************************************************
-  This struct defines a cluster descriptor, that is a leaf cell in a 64-tree.
-  Each cluster descriptor contains a pointer on a 4K bytes buffer, and the
+  This struct defines a buffer descriptor, that is a leaf cell in a 64-tree.
+  Each buffer descriptor contains a pointer on a 4K bytes buffer, and the
   lba on block device.
 ********************************************************************************/
@@ -225 +225 @@
 *******************************************************************************/
 
+extern int _fat_ioc_access( unsigned int use_irq,               // descheduling 
+                            unsigned int to_mem,                // read / write
+                            unsigned int lba,                   // first sector 
+                            unsigned int buf_vaddr,             // memory buffer vaddr
+                            unsigned int count );               // number of sectors
+
 extern int _fat_init();         
 
@@ -271 +277 @@
                                unsigned int buffer_size );      // buffer size
 
+extern int _get_fat_cache_buffer( unsigned int    cluster_id,   // cluster index in FAT
+                                  fat_cache_desc_t**  desc );   // buffer descriptor
+
 extern int _get_file_cache_buffer( fat_inode_t*    inode,       // inode pointer
-                                   unsigned int    cluster_id,  // cluster index
-                                   unsigned int     writable,   // writable mmap
+                                   unsigned int    cluster_id,  // cluster index in file
+                                   unsigned int    writable,    // behaviour if miss
                                    fat_cache_desc_t** desc );   // buffer descriptor
 #endif