Refactor macros in the VirtualFAT implementation of the incomplete Mass Storage bootl...

[pub/USBasp.git] / Bootloaders / Incomplete / MassStorage / Lib / VirtualFAT.h

diff --git a/Bootloaders/Incomplete/MassStorage/Lib/VirtualFAT.h b/Bootloaders/Incomplete/MassStorage/Lib/VirtualFAT.h
index 760fb40..156760a 100644 (file)
--- a/Bootloaders/Incomplete/MassStorage/Lib/VirtualFAT.h
+++ b/Bootloaders/Incomplete/MassStorage/Lib/VirtualFAT.h
@@ -38,11 +38,17 @@
                #include <LUFA/Drivers/USB/USB.h>
 
        /* Macros: */
-               #define VIRTUAL_MEMORY_BLOCK_SIZE 512
+               #define FIRMWARE_FILE_SIZE     (FLASHEND + 1UL)
+               #define FILE_CLUSTERS(size)    ((size / CLUSTER_SIZE_BYTES) + ((size % CLUSTER_SIZE_BYTES) ? 1 : 0))
 
-               #define FIRMWARE_FILE_SIZE        (FLASHEND + 1UL)
+               #define SECTOR_SIZE_BYTES      512
+               #define SECTOR_PER_CLUSTER     4
+               #define CLUSTER_SIZE_BYTES     (SECTOR_PER_CLUSTER * SECTOR_SIZE_BYTES)
 
-               #define LUN_MEDIA_BLOCKS          ((FIRMWARE_FILE_SIZE / VIRTUAL_MEMORY_BLOCK_SIZE) + 32)
+               #define LUN_MEDIA_BLOCKS       ((FIRMWARE_FILE_SIZE / SECTOR_SIZE_BYTES) + 32)
+
+               #define FAT_TIME(h, m, s)      ((h << 11) | (m << 5) | (s >> 1))
+               #define FAT_DATE(d, m, y)      (((y - 1980) << 9) | (m << 5) | (d << 0))
 
        /* Type Definitions: */
                typedef struct