Changeset 263 for soft/giet_vm/giet_fat32

Timestamp:

Dec 19, 2013, 9:36:48 AM (11 years ago)

Author:

alain

Message:

Introducing support for TSAR fixed format cluster index (cluster_xy)
We have now 4 parameters defined in map.xml:

• X_WIDTH, Y_WIDTH define the fixed format (typically X_WIDTH = 4 / Y_WIDTH = 4)
• X_SIZE, Y_SIZE define the actual TSAR 2D mesh variable size (from 1 to 16)

File:

• soft/giet_vm/giet_fat32/fat32.c (modified) (5 diffs)

soft/giet_vm/giet_fat32/fat32.c

@@ -497 +497 @@
     fat.cache_lba = lba;
 
-//  #if GIET_DEBUG_FAT
-//  display_fat_cache();
-//  #endif
+    #if GIET_DEBUG_FAT
+    display_fat_cache();
+    #endif
 
     // in this loop we scan all names in directory identified by cluster: 
@@ -714 +714 @@
     if ( _ioc_read( mode,             // mode for IOC driver
                     0,                // sector index 
-                    fat.fat_cache,   // buffer address
+                    fat.fat_cache,    // buffer address
                     1 ) )             // one sector
     { 
@@ -760 +760 @@
 #if GIET_DEBUG_FAT
 _tty_get_lock( 0 );
-_puts("\n[FAT DEBUG] First Partition Sector Loaded\n");
+_puts("\n[FAT DEBUG] Partition First Sector Loaded\n");
 _tty_release_lock( 0 );
 #endif
@@ -839 +839 @@
 ///////////////////////////////////////////////////////////////////////////////
 // This function checks that the kernel FAT structure has been initialised,
-// and makes the FAT initialisation if required (first user _fat_open request). 
+// and makes the FAT initialisation if it is the first user open request. 
 // This function searches a file identified by the "pathname" argument.
 // It starts from root (cluster 2) to scan successively each subdirectory.
@@ -871 +871 @@
     if( fat.initialised != FAT_INITIALISED )
     {
-        _fat_init( IOC_KERNEL_MODE );  // we use KERNEL_MODE, because
-                                       // we need to write into FAT cache
+        _fat_init( IOC_BOOT_VA_MODE );
     }
  
-    // Scan the sub-directories, starting from the root directory (cluster 2)
+    // Scan the directories, starting from the root directory (cluster 2)
     // - The get_name_from_path() function extracts (successively) 
     //   each directory name from the pathname, and store it in name[] buffer