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| author | Dean Camera <dean@fourwalledcubicle.com> | 2013-03-29 10:23:09 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2013-03-29 10:23:09 +0000 |
| commit | 83d5c4729e3cb014d2f75a5ac4132658ad6b7ea8 (patch) | |
| tree | f03feebdd7163814ef7ed3cbeb3a7643cf105567 /Bootloaders/MassStorage/Lib/VirtualFAT.h | |
| parent | 148b434228cfa94160cc1dbfafc455fd86825fa1 (diff) | |
| download | lufa-83d5c4729e3cb014d2f75a5ac4132658ad6b7ea8.tar.gz lufa-83d5c4729e3cb014d2f75a5ac4132658ad6b7ea8.tar.bz2 lufa-83d5c4729e3cb014d2f75a5ac4132658ad6b7ea8.zip | |
Update Mass Storage bootloader for Linux compatibility, and to reduce the compiled bootloader size. Linux appears to replace files with a cluster offset on the disk rather than re-using the same disk clusters (unlike Windows) so the file offset needs to be tracked and compensated for.
Diffstat (limited to 'Bootloaders/MassStorage/Lib/VirtualFAT.h')
| -rw-r--r-- | Bootloaders/MassStorage/Lib/VirtualFAT.h | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/Bootloaders/MassStorage/Lib/VirtualFAT.h b/Bootloaders/MassStorage/Lib/VirtualFAT.h index 37095eae5..820fe54d5 100644 --- a/Bootloaders/MassStorage/Lib/VirtualFAT.h +++ b/Bootloaders/MassStorage/Lib/VirtualFAT.h @@ -121,6 +121,23 @@ #define FAT_ORDINAL_LAST_ENTRY (1 << 6) //@} + /* Enums: */ + enum + { + DISK_FILE_ENTRY_VolumeID = 0, + DISK_FILE_ENTRY_FirmwareLFN = 1, + DISK_FILE_ENTRY_FirmwareMSDOS = 2, + }; + + enum + { + DISK_BLOCK_BootBlock = 0, + DISK_BLOCK_FATBlock1 = 1, + DISK_BLOCK_FATBlock2 = 2, + DISK_BLOCK_RootFilesBlock = 3, + DISK_BLOCK_DataStartBlock = 4, + }; + /* Type Definitions: */ /** FAT boot block structure definition, used to identify the core * parameters of a FAT filesystem stored on a disk. @@ -213,13 +230,13 @@ static void UpdateFAT12ClusterEntry(uint8_t* const FATTable, const uint16_t Index, const uint16_t ChainEntry) AUX_BOOT_SECTION; - static void WriteVirtualBlock(const uint16_t BlockNumber) AUX_BOOT_SECTION; - static void ReadVirtualBlock(const uint16_t BlockNumber) AUX_BOOT_SECTION; + + static void ReadWriteFirmwareFileBlock(const uint16_t BlockNumber, + uint8_t* BlockBuffer, + const bool Read) AUX_BOOT_SECTION; #endif - void VirtualFAT_WriteBlocks(const uint16_t BlockAddress, - uint16_t TotalBlocks) AUX_BOOT_SECTION; + void VirtualFAT_WriteBlock(const uint16_t BlockNumber) AUX_BOOT_SECTION; + void VirtualFAT_ReadBlock(const uint16_t BlockNumber) AUX_BOOT_SECTION; - void VirtualFAT_ReadBlocks(const uint16_t BlockAddress, - uint16_t TotalBlocks) AUX_BOOT_SECTION; #endif |