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136 lines
4.1 KiB
C
136 lines
4.1 KiB
C
/* This file has been prepared for Doxygen automatic documentation generation.*/
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/*! \file avr_flash.h *********************************************************
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*
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* \brief
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* This file writes/reads to/from flash memory internal to the AVR.
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*
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* \addtogroup usbstick
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*
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* \author
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* Colin O'Flynn <coflynn@newae.com>
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******************************************************************************/
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/*
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Copyright (c) 2008 Colin O'Flynn
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* Neither the name of the copyright holders nor the names of
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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\addtogroup usbstorage
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@{
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*/
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#ifndef _DFMEM_H_
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#define _DFMEM_H_
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#include "conf_access.h"
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#include "ctrl_status.h"
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//_____ D E F I N I T I O N S ______________________________________________
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//! FAT specification
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#define ENTRY_SIZE 32 // size of entrie in byte
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// First sector of the disk virtual (this disk isn't partitioned, only one partion)
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#define PBR_SECTOR (0)
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#define FAT_SECTOR (PBR_SECTOR + VMEM_RESERVED_SIZE)
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#define ROOT_SECTOR (FAT_SECTOR + (VMEM_SIZE_FAT*VMEM_NB_FATS))
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#define FILE_SECTOR (ROOT_SECTOR + ((ENTRY_SIZE*VMEM_NB_ROOT_ENTRY) / VMEM_SECTOR_SIZE)) // 1(sector) = size root dir
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/* FAT Format Structure */
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typedef struct
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{
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Uint16 nb_cylinder;
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Byte nb_head;
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Byte nb_sector;
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Byte nb_hidden_sector;
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Byte nb_sector_per_cluster;
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} s_format;
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#define MEM_BSY 0
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#define MEM_OK 1
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#define MEM_KO 2
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//---- CONTROL FONCTIONS ----
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// those fonctions are declared in df_mem.h
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void avrf_mem_init(void);
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Ctrl_status avrf_test_unit_ready(void);
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Ctrl_status avrf_read_capacity( U32 _MEM_TYPE_SLOW_ *u32_nb_sector );
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Bool avrf_wr_protect(void);
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Bool avrf_removal(void);
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//---- AVR FLASH LOW-LEVEL----
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bit avrf_init (void);
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bit avrf_mem_check(void);
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bit avrf_read_open (Uint32);
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void avrf_read_close (void);
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bit avrf_write_open (Uint32);
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void avrf_write_close (void);
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//! Funtions to link USB DEVICE flow with data flash
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bit avrf_write_sector (Uint16);
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bit avrf_read_sector (Uint16);
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s_format * avrf_format (void);
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//---- ACCESS DATA FONCTIONS ----
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// Standard functions for open in read/write mode the device
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Ctrl_status avrf_read_10( U32 addr , U16 nb_sector );
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Ctrl_status avrf_write_10( U32 addr , U16 nb_sector );
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//** If your device transfer have a specific transfer for USB (Particularity of Chejudo product, or bootloader)
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#ifdef DF_VALIDATION
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#include "virtual_usb.h"
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#else
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#include "usb_drv.h" // In this case the driver must be known for the USB access
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#endif
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Ctrl_status avr_usb_read( void );
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Ctrl_status avr_usb_write( void );
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#endif // _DFMEM_H_
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/** @} */
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