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#ifndef DISC_IO_H
#define DISC_IO_H
//----------------------------------------------------------------------
// Customisable features
// Use DMA to read the card, remove this line to use normal reads/writes
// #define _CF_USE_DMA
// Allow buffers not aligned to 16 bits when reading files.
// Note that this will slow down access speed, so only use if you have to.
// It is also incompatible with DMA
#define _CF_ALLOW_UNALIGNED
#define _IO_ALLOW_UNALIGNED
// Device support options, added by www.neoflash.com
//#define SUPPORT_MPCF // comment out this line to remove GBA Movie Player support
//#define SUPPORT_M3CF // comment out this line to remove M3 Perfect CF support
//#define SUPPORT_M3SD // comment out this line to remove M3 Perfect SD support
//#define SUPPORT_SCCF // comment out this line to remove Supercard CF support
//#define SUPPORT_SCSD // comment out this line to remove Supercard SD support
//#define SUPPORT_NJSD
//#define SUPPORT_MMCF
//#define SUPPORT_EFA2 // comment out this line to remove EFA2 linker support
//#define SUPPORT_FCSR // comment out this line to remove GBA Flash Cart support
//#define SUPPORT_NMMC // comment out this line to remove Neoflash MK2 MMC Card support
// Disk caching options, added by www.neoflash.com
// Each additional sector cache uses 512 bytes of memory
// Disk caching is disabled on GBA to conserve memory
#define DISC_CACHE // uncomment this line to enable disc caching
#ifdef DS_BUILD_F
#define DISC_CACHE_COUNT 128 // maximum number of sectors to cache (512 bytes per sector)
#else
#define DISC_CACHE_COUNT 32 // maximum number of sectors to cache (512 bytes per sector)
#endif
//#define DISK_CACHE_DMA // use DMA for cache copies. If this is enabled, the data buffers must be word aligned
// This allows the code to build on an earlier version of libnds, before the register was renamed
#ifndef REG_EXMEMCNT
#define REG_EXMEMCNT REG_EXEMEMCNT
#endif
#ifndef REG_EXEMEMCNT
#define REG_EXEMEMCNT REG_EXMEMCNT
#endif
//----------------------------------------------------------------------
#if defined _CF_USE_DMA && defined _CF_ALLOW_UNALIGNED
#error You can not use both DMA and unaligned memory
#endif
// When compiling for NDS, make sure NDS is defined
#ifndef NDS
#if defined ARM9 || defined ARM7
#define NDS
#endif
#endif
#ifdef NDS
#include <nds/ndstypes.h>
#else
#include "gba_types.h"
#endif
// Disable NDS specific hardware and features if running on a GBA
#ifndef NDS
#undef SUPPORT_NMMC
#undef DISC_CACHE
#endif
/*
Interface for host program
*/
#define BYTE_PER_READ 512
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
DEVICE_NONE = 0,
DEVICE_M3SD,
DEVICE_MMCF,
DEVICE_M3CF,
DEVICE_MPCF,
DEVICE_SCCF,
DEVICE_NJSD,
DEVICE_SCSD,
DEVICE_NMMC,
DEVICE_DLDI
} FATDevice;
/*-----------------------------------------------------------------
disc_Init
Detects the inserted hardware and initialises it if necessary
bool return OUT: true if a suitable device was found
-----------------------------------------------------------------*/
extern bool disc_Init(void) ;
/*-----------------------------------------------------------------
disc_IsInserted
Is a usable disc inserted?
bool return OUT: true if a disc is inserted
-----------------------------------------------------------------*/
extern bool disc_IsInserted(void) ;
extern void disc_setEnable(int en);
extern FATDevice disc_getDeviceId();
void disc_getDldiId(char* id);
/*-----------------------------------------------------------------
disc_ReadSectors
Read 512 byte sector numbered "sector" into "buffer"
u32 sector IN: address of first 512 byte sector on disc to read
u8 numSecs IN: number of 512 byte sectors to read,
1 to 256 sectors can be read, 0 = 256
void* buffer OUT: pointer to 512 byte buffer to store data in
bool return OUT: true if successful
-----------------------------------------------------------------*/
extern bool disc_ReadSectors(u32 sector, u8 numSecs, void* buffer) ;
#define disc_ReadSector(sector,buffer) disc_ReadSectors(sector,1,buffer)
/*-----------------------------------------------------------------
disc_WriteSectors
Write 512 byte sector numbered "sector" from "buffer"
u32 sector IN: address of 512 byte sector on disc to write
u8 numSecs IN: number of 512 byte sectors to write ,
1 to 256 sectors can be read, 0 = 256
void* buffer IN: pointer to 512 byte buffer to read data from
bool return OUT: true if successful
-----------------------------------------------------------------*/
extern bool disc_WriteSectors(u32 sector, u8 numSecs, void* buffer) ;
#define disc_WriteSector(sector,buffer) disc_WriteSectors(sector,1,buffer)
/*-----------------------------------------------------------------
disc_ClearStatus
Tries to make the disc go back to idle mode
bool return OUT: true if the disc is idle
-----------------------------------------------------------------*/
extern bool disc_ClearStatus(void) ;
/*-----------------------------------------------------------------
disc_Shutdown
unload the disc interface
bool return OUT: true if successful
-----------------------------------------------------------------*/
extern bool disc_Shutdown(void) ;
/*-----------------------------------------------------------------
disc_HostType
Returns a unique u32 number identifying the host type
u32 return OUT: 0 if no host initialised, else the identifier of
the host
-----------------------------------------------------------------*/
extern u32 disc_HostType(void);
/*-----------------------------------------------------------------
disc_CacheFlush
Flushes any cache writes to disc
bool return OUT: true if successful, false if an error occurs
Added by www.neoflash.com
-----------------------------------------------------------------*/
#ifdef DISC_CACHE
extern bool disc_CacheFlush(void);
#else
static inline bool disc_CacheFlush(void)
{
return true;
}
#endif // DISC_CACHE
/*
Interface for IO libs
*/
#define FEATURE_MEDIUM_CANREAD 0x00000001
#define FEATURE_MEDIUM_CANWRITE 0x00000002
#define FEATURE_SLOT_GBA 0x00000010
#define FEATURE_SLOT_NDS 0x00000020
typedef bool (* FN_MEDIUM_STARTUP)(void) ;
typedef bool (* FN_MEDIUM_ISINSERTED)(void) ;
typedef bool (* FN_MEDIUM_READSECTORS)(u32 sector, u8 numSecs, void* buffer) ;
typedef bool (* FN_MEDIUM_WRITESECTORS)(u32 sector, u8 numSecs, void* buffer) ;
typedef bool (* FN_MEDIUM_CLEARSTATUS)(void) ;
typedef bool (* FN_MEDIUM_SHUTDOWN)(void) ;
typedef struct {
unsigned long ul_ioType ;
unsigned long ul_Features ;
FN_MEDIUM_STARTUP fn_StartUp ;
FN_MEDIUM_ISINSERTED fn_IsInserted ;
FN_MEDIUM_READSECTORS fn_ReadSectors ;
FN_MEDIUM_WRITESECTORS fn_WriteSectors ;
FN_MEDIUM_CLEARSTATUS fn_ClearStatus ;
FN_MEDIUM_SHUTDOWN fn_Shutdown ;
} IO_INTERFACE, *LPIO_INTERFACE ;
#ifdef __cplusplus
}
#endif
#endif // define DISC_IO_H
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