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120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/*
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disc.h
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Interface to the low level disc functions. Used by the higher level
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file system code.
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Copyright (c) 2006 Michael "Chishm" Chisholm
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation and/or
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other materials provided with the distribution.
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3. The name of the author may not 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 AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING 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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#ifndef _DISC_H
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#define _DISC_H
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#include "common.h"
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/*
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A list of all default devices to try at startup,
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terminated by a {NULL,NULL} entry.
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*/
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typedef struct
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{
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const char* name;
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const DISC_INTERFACE* (*getInterface)(void);
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} INTERFACE_ID;
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extern const INTERFACE_ID _FAT_disc_interfaces[];
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/*
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Check if a disc is inserted
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Return true if a disc is inserted and ready, false otherwise
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*/
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static inline bool _FAT_disc_isInserted (const DISC_INTERFACE* disc)
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{
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return disc->isInserted();
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}
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/*
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Read numSectors sectors from a disc, starting at sector.
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numSectors is between 1 and LIMIT_SECTORS if LIMIT_SECTORS is defined,
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else it is at least 1
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sector is 0 or greater
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buffer is a pointer to the memory to fill
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*/
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static inline bool _FAT_disc_readSectors (const DISC_INTERFACE* disc, sec_t sector, sec_t numSectors, void* buffer)
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{
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return disc->readSectors (sector, numSectors, buffer);
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}
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/*
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Write numSectors sectors to a disc, starting at sector.
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numSectors is between 1 and LIMIT_SECTORS if LIMIT_SECTORS is defined,
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else it is at least 1
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sector is 0 or greater
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buffer is a pointer to the memory to read from
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*/
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static inline bool _FAT_disc_writeSectors (const DISC_INTERFACE* disc, sec_t sector, sec_t numSectors, const void* buffer)
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{
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return disc->writeSectors (sector, numSectors, buffer);
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}
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/*
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Reset the card back to a ready state
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*/
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static inline bool _FAT_disc_clearStatus (const DISC_INTERFACE* disc)
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{
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return disc->clearStatus();
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}
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/*
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Initialise the disc to a state ready for data reading or writing
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*/
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static inline bool _FAT_disc_startup (const DISC_INTERFACE* disc)
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{
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return disc->startup();
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}
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/*
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Put the disc in a state ready for power down.
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Complete any pending writes and disable the disc if necessary
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*/
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static inline bool _FAT_disc_shutdown (const DISC_INTERFACE* disc)
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{
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return disc->shutdown();
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}
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/*
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Return a 32 bit value unique to each type of interface
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*/
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static inline uint32_t _FAT_disc_hostType (const DISC_INTERFACE* disc)
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{
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return disc->ioType;
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}
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/*
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Return a 32 bit value that specifies the capabilities of the disc
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*/
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static inline uint32_t _FAT_disc_features (const DISC_INTERFACE* disc)
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{
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return disc->features;
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}
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#endif /* _DISC_H */
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