Add Long File Name (VFAT) entry to the Mass Storage class bootloader, so that systems...

[pub/USBasp.git] / Bootloaders / MassStorage / Lib / VirtualFAT.c

diff --git a/Bootloaders/MassStorage/Lib/VirtualFAT.c b/Bootloaders/MassStorage/Lib/VirtualFAT.c
index e0541f4..c0d9786 100644 (file)
--- a/Bootloaders/MassStorage/Lib/VirtualFAT.c
+++ b/Bootloaders/MassStorage/Lib/VirtualFAT.c
@@ -72,33 +72,68 @@ static const FATBootBlock_t BootBlock =
        };
 
 /** FAT 8.3 style directory entry, for the virtual FLASH contents file. */
-static FATDirectoryEntry_t FirmwareFileEntries[2] =
+static FATDirectoryEntry_t FirmwareFileEntries[] =
        {
                /* Root volume label entry; disk label is contained in the Filename and
                 * Extension fields (concatenated) with a special attribute flag - other
                 * fields are ignored. Should be the same as the label in the boot block.
                 */
                {
-                       .Filename               = "LUFA BOO",
-                       .Extension              = "T  ",
-                       .Attributes             = (1 << 3),
-                       .Reserved               = {0},
-                       .CreationTime           = 0,
-                       .CreationDate           = 0,
-                       .StartingCluster        = 0,
-                       .FileSizeBytes          = 0,
+                       .MSDOS =
+                               {
+                                       .Filename        = "LUFA BOO",
+                                       .Extension       = "T  ",
+                                       .Attributes      = FAT_FLAG_VOLUME_NAME,
+                                       .Reserved        = {0},
+                                       .CreationTime    = 0,
+                                       .CreationDate    = 0,
+                                       .StartingCluster = 0,
+                                       .FileSizeBytes   = 0,
+                               }
                },
 
-               /* File entry for the virtual Firmware image. */
+               /* VFAT Long File Name entry for the virtual firmware file; required to
+                * prevent corruption of systems that are unable to detect the device
+                * as being a legacy MSDOS style FAT12 volume to prevent corruption. */
                {
-                       .Filename               = "FIRMWARE",
-                       .Extension              = "BIN",
-                       .Attributes             = 0,
-                       .Reserved               = {0},
-                       .CreationTime           = FAT_TIME(1, 1, 0),
-                       .CreationDate           = FAT_DATE(14, 2, 1989),
-                       .StartingCluster        = 2,
-                       .FileSizeBytes          = FIRMWARE_FILE_SIZE_BYTES,
+                       .VFAT =
+                               {
+                                       .Ordinal         = FAT_ORDINAL_LAST_ENTRY | 1,
+                                       .Attribute       = FAT_FLAG_LONG_FILE_NAME,
+                                       .Reserved1       = 0,
+                                       .Reserved2       = 0,
+
+                                       .Checksum        = 0x57,
+
+                                       .Unicode1        = 'F',
+                                       .Unicode2        = 'I',
+                                       .Unicode3        = 'R',
+                                       .Unicode4        = 'M',
+                                       .Unicode5        = 'W',
+                                       .Unicode6        = 'A',
+                                       .Unicode7        = 'R',
+                                       .Unicode8        = 'E',
+                                       .Unicode9        = '.',
+                                       .Unicode10       = 'B',
+                                       .Unicode11       = 'I',
+                                       .Unicode12       = 'N',
+                                       .Unicode13       = 0,
+                               }
+               },
+
+               /* MSDOS file entry for the virtual Firmware image. */
+               {
+                       .MSDOS =
+                               {
+                                       .Filename        = "FIRMWARE",
+                                       .Extension       = "BIN",
+                                       .Attributes      = 0,
+                                       .Reserved        = {0},
+                                       .CreationTime    = FAT_TIME(1, 1, 0),
+                                       .CreationDate    = FAT_DATE(14, 2, 1989),
+                                       .StartingCluster = 2,
+                                       .FileSizeBytes   = FIRMWARE_FILE_SIZE_BYTES,
+                               }
                },
        };