Demos/Device/ClassDriver/MassStorage/Lib/DataflashManager.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Header file for DataflashManager.c.
  34  */
  35
  36 #ifndef _DATAFLASH_MANAGER_H
  37 #define _DATAFLASH_MANAGER_H
  38
  39         /* Includes: */
  40                 #include <avr/io.h>
  41
  42                 #include "MassStorage.h"
  43                 #include "Descriptors.h"
  44
  45                 #include <LUFA/Common/Common.h>
  46                 #include <LUFA/Drivers/USB/USB.h>
  47                 #include <LUFA/Drivers/USB/Class/MassStorage.h>
  48                 #include <LUFA/Drivers/Board/Dataflash.h>
  49
  50         /* Preprocessor Checks: */
  51                 #if (DATAFLASH_PAGE_SIZE % 16)
  52                         #error Dataflash page size must be a multiple of 16 bytes.
  53                 #endif
  54
  55         /* Defines: */
  56                 /** Total number of bytes of the storage medium, comprised of one or more dataflash ICs. */
  57                 #define VIRTUAL_MEMORY_BYTES                ((uint32_t)DATAFLASH_PAGES * DATAFLASH_PAGE_SIZE * DATAFLASH_TOTALCHIPS)
  58
  59                 /** Block size of the device. This is kept at 512 to remain compatible with the OS despite the underlying
  60                  *  storage media (Dataflash) using a different native block size. Do not change this value.
  61                  */
  62                 #define VIRTUAL_MEMORY_BLOCK_SIZE           512
  63
  64                 /** Total number of blocks of the virtual memory for reporting to the host as the device's total capacity. Do not
  65                  *  change this value; change VIRTUAL_MEMORY_BYTES instead to alter the media size.
  66                  */
  67                 #define VIRTUAL_MEMORY_BLOCKS               (VIRTUAL_MEMORY_BYTES / VIRTUAL_MEMORY_BLOCK_SIZE)
  68
  69         /* Function Prototypes: */
  70                 void DataflashManager_WriteBlocks(USB_ClassInfo_MS_Device_t* MSInterfaceInfo, const uint32_t BlockAddress,
  71                                                   uint16_t TotalBlocks);
  72                 void DataflashManager_ReadBlocks(USB_ClassInfo_MS_Device_t* MSInterfaceInfo, const uint32_t BlockAddress,
  73                                                  uint16_t TotalBlocks);
  74                 void DataflashManager_WriteBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks,
  75                                                       uint8_t* BufferPtr) ATTR_NON_NULL_PTR_ARG(3);
  76                 void DataflashManager_ReadBlocks_RAM(const uint32_t BlockAddress, uint16_t TotalBlocks,
  77                                                      uint8_t* BufferPtr) ATTR_NON_NULL_PTR_ARG(3);
  78                 void DataflashManager_ResetDataflashProtections(void);
  79                 bool DataflashManager_CheckDataflashOperation(void);
  80
  81 #endif