112 lines
4.5 KiB
C
112 lines
4.5 KiB
C
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2008, Atmel Corporation
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*
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* All rights reserved.
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*
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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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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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//------------------------------------------------------------------------------
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/// \unit
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/// !Purpose
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///
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/// SCSI commands implementation.
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///
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/// !Usage
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///
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/// -# After a CBW is received from host, use SBC_GetCommandInformation to check
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/// if the command is supported, and get the command length and type
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/// information before processing it.
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/// -# Then SBC_ProcessCommand can be used to handle a valid command, to
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/// perform the command operations.
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/// -# SBC_UpdateSenseData is used to update the sense data that will be sent
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/// to host.
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//------------------------------------------------------------------------------
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#ifndef SBCMETHODS_H
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#define SBCMETHODS_H
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//------------------------------------------------------------------------------
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// Headers
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//------------------------------------------------------------------------------
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#include "SBC.h"
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// #include <nand/MSDLun.h>
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#include "MSDDStateMachine.h"
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//------------------------------------------------------------------------------
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// Definitions
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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/// \page "SBC Command States"
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/// This page lists the possible states of a SBC command.
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///
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/// !States
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/// - SBC_STATE_READ
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/// - SBC_STATE_WAIT_READ
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/// - SBC_STATE_WRITE
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/// - SBC_STATE_WAIT_WRITE
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/// - SBC_STATE_NEXT_BLOCK
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/// Start of reading bulk data
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#define SBC_STATE_READ 0x01
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/// Waiting for the bulk data reading complete
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#define SBC_STATE_WAIT_READ 0x02
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/// Read error state
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#define SBC_STATE_READ_ERROR 0x03
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/// Start next read block
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#define SBC_STATE_NEXT_READ 0x04
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/// Start writing bulk data to host
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#define SBC_STATE_WRITE 0x05
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/// Waiting for the bulk data sending complete
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#define SBC_STATE_WAIT_WRITE 0x06
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/// Write error state
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#define SBC_STATE_WRITE_ERROR 0x07
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/// Start next write block
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#define SBC_STATE_NEXT_WRITE 0x08
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/// Start next command block
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#define SBC_STATE_NEXT_BLOCK 0x09
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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// Exported functions
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//------------------------------------------------------------------------------
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void SBC_UpdateSenseData(SBCRequestSenseData *requestSenseData,
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unsigned char senseKey,
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unsigned char additionalSenseCode,
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unsigned char additionalSenseCodeQualifier);
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unsigned char SBC_GetCommandInformation(void *command,
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unsigned int *length,
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unsigned char *type,
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MSDLun *lun);
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unsigned char SBC_ProcessCommand(MSDLun *lun,
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MSDCommandState *commandState);
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#endif //#ifndef SBCMETHODS_H
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