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Diffstat (limited to 'sdk-modifications/libsrc/fs/disc_io/disc_io.h')
| -rw-r--r-- | sdk-modifications/libsrc/fs/disc_io/disc_io.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/sdk-modifications/libsrc/fs/disc_io/disc_io.h b/sdk-modifications/libsrc/fs/disc_io/disc_io.h new file mode 100644 index 0000000..6ac0c31 --- /dev/null +++ b/sdk-modifications/libsrc/fs/disc_io/disc_io.h @@ -0,0 +1,83 @@ +/* + disc_io.h + Interface template for low level disc functions. + + Copyright (c) 2006 Michael "Chishm" Chisholm + + Redistribution and use in source and binary forms, with or without modification, + are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation and/or + other materials provided with the distribution. + 3. The name of the author may not be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + 2006-07-11 - Chishm + * Original release + + 2006-07-16 - Chishm + * Renamed _CF_USE_DMA to _IO_USE_DMA + * Renamed _CF_ALLOW_UNALIGNED to _IO_ALLOW_UNALIGNED +*/ + +#ifndef _DISC_IO_H +#define _DISC_IO_H + +#include "../fs_common.h" + +//---------------------------------------------------------------------- +// Customisable features + +// Use DMA to read the card, remove this line to use normal reads/writes +// #define _IO_USE_DMA + +// Allow buffers not alligned 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 _IO_ALLOW_UNALIGNED + +#define _IO_USE_DMA + +#if defined _IO_USE_DMA && defined _IO_ALLOW_UNALIGNED + #error You can't use both DMA and unaligned memory +#endif + +#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)(unsigned long sector, unsigned long numSectors, void* buffer) ; +typedef bool (* FN_MEDIUM_WRITESECTORS)(unsigned long sector, unsigned long numSectors, const void* buffer) ; +typedef bool (* FN_MEDIUM_CLEARSTATUS)(void) ; +typedef bool (* FN_MEDIUM_SHUTDOWN)(void) ; + +struct IO_INTERFACE_STRUCT { + unsigned long ioType ; + unsigned long 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 ; +} ; + +typedef struct IO_INTERFACE_STRUCT IO_INTERFACE ; + +#endif // define _DISC_IO_H |