5 files changed, 481 insertions, 0 deletions
diff --git a/sdk-modifications/libsrc/fs/disc_io/disc.c b/sdk-modifications/libsrc/fs/disc_io/disc.c
new file mode 100644
index 0000000..8b50953
--- /dev/null
+++ b/sdk-modifications/libsrc/fs/disc_io/disc.c
@@ -0,0 +1,194 @@
+/*
+
+	disc.c
+
+	uniformed io-interface to work with Chishm's FAT library
+
+	Written by MightyMax
+  
+
+ 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.
+
+	2005-11-06 - Chishm
+		* Added WAIT_CR modifications for NDS
+
+	2006-02-03 www.neoflash.com
+		* Added SUPPORT_* defines, comment out any of the SUPPORT_* defines in disc_io.h to remove support
+		  for the given interface and stop code being linked to the binary
+
+	    * Added support for MK2 MMC interface
+
+		* Added disc_Cache* functions
+
+	2006-02-05 - Chishm
+		* Added Supercard SD support
+
+	2006-02-26 - Cytex
+		* Added EFA2 support
+
+	2006-05-18 - Chishm
+		* Rewritten for FATlib disc.c
+		
+	2006-06-19 - Chishm
+		* Changed read and write interface to accept a u32 instead of a u8 for the number of sectors
+		
+	2006-07-11 - Chishm
+		* Removed disc_Cache* functions, since there is now a proper unified cache
+		* Removed SUPPORT_* defines
+		* Rewrote device detection functions
+		* First libfat release
+	
+	2006-07-25 - Chishm
+		* Changed IO_INTERFACEs to const
+		
+	2006-08-02 - Chishm
+		* Added NinjaDS
+*/
+
+#include "disc.h"
+#include "disc_io.h"
+
+// Include known io-interfaces:
+//#include "io_dldi.h"
+//#include "io_mpcf.h"
+//#include "io_m3cf.h"
+//#include "io_m3sd.h"
+//#include "io_sccf.h"
+//#include "io_scsd.h"
+//#include "io_fcsr.h"
+//#include "io_nmmc.h"
+//#include "io_efa2.h"
+//#include "io_mmcf.h"
+//#include "io_njsd.h"
+//#include "io_acekard.h"
+//#include "io_rpg_nand.h"
+//#include "io_rpg_sd.h"
+//#include "iointerface_sc.h"
+#include "io_ds2_mmcf.h"
+
+const IO_INTERFACE* ioInterfaces[] = {
+	//&_io_dldi,
+	//&_io_fcsr,
+#ifdef NDS
+	// Place Slot 1 (DS Card) interfaces here
+	//&_io_rpg_sd, //&_io_rpg_nand, /*&_io_acekard, */
+	// Place Slot 2 (GBA Cart) interfaces here
+	//&_io_scsd, &_io_mpcf, &_io_m3cf, &_io_sccf, &_io_m3sd, &_io_fcsr
+	// Experimental Slot 2 interfaces
+	//, &_io_mmcf, &_io_efa2
+    &_io_ds2_mmcf,
+#endif
+};
+
+/*
+
+	Hardware level disc funtions
+
+*/
+
+
+const IO_INTERFACE* _FAT_disc_gbaSlotFindInterface (void)
+{
+	// If running on an NDS, make sure the correct CPU can access
+	// the GBA cart. First implemented by SaTa.
+#ifdef NDS
+ #ifdef ARM9
+	REG_EXMEMCNT &= ~ARM7_OWNS_ROM;
+ #endif
+ #ifdef ARM7
+	REG_EXMEMCNT |= ARM7_OWNS_ROM;
+ #endif
+#endif
+
+	int i;
+
+	for (i = 0; i < (sizeof(ioInterfaces) / sizeof(IO_INTERFACE*)); i++) {
+		if ((ioInterfaces[i]->features & FEATURE_SLOT_GBA) && (ioInterfaces[i]->fn_startup())) {
+			return ioInterfaces[i];
+		}
+	}
+	return NULL;
+}
+
+#ifdef NDS
+/*
+ * Check the DS card slot for a valid memory card interface
+ * If an interface is found, it is set as the default interace
+ * and it returns true. Otherwise the default interface is left
+ * untouched and it returns false.
+ */
+const IO_INTERFACE* _FAT_disc_dsSlotFindInterface (void)
+{
+#ifdef ARM9
+	REG_EXMEMCNT &= ~ARM7_OWNS_CARD;
+#endif
+#ifdef ARM7
+	REG_EXMEMCNT |= ARM7_OWNS_CARD;
+#endif
+	int i;
+
+	for (i = 0; i < (sizeof(ioInterfaces) / sizeof(IO_INTERFACE*)); i++) {
+		if ((ioInterfaces[i]->features & FEATURE_SLOT_NDS) && (ioInterfaces[i]->fn_startup())) {
+			return ioInterfaces[i];
+		}
+	}
+
+	return NULL;
+}
+#endif
+
+/*
+ * When running on an NDS, check the either slot for a valid memory
+ * card interface. 
+ * When running on a GBA, call _FAT_disc_gbaSlotFindInterface
+ * If an interface is found, it is set as the default interace
+ * and it returns true. Otherwise the default interface is left
+ * untouched and it returns false.
+ */
+#ifdef NDS
+const IO_INTERFACE* _FAT_disc_findInterface (void)
+{
+#ifdef ARM9
+	REG_EXMEMCNT &= ~(ARM7_OWNS_CARD | ARM7_OWNS_ROM);
+#endif
+#ifdef ARM7
+	REG_EXMEMCNT |= (ARM7_OWNS_CARD | ARM7_OWNS_ROM);
+#endif
+
+	int i;
+
+	for (i = 0; i < (sizeof(ioInterfaces) / sizeof(IO_INTERFACE*)); i++) {
+		if (ioInterfaces[i]->fn_startup()) {
+			return ioInterfaces[i];
+		}
+	}
+
+	return NULL;
+}
+#else
+const IO_INTERFACE* _FAT_disc_findInterface (void)
+{
+	return _FAT_disc_gbaSlotFindInterface();
+}
+#endif
diff --git a/sdk-modifications/libsrc/fs/disc_io/disc.h b/sdk-modifications/libsrc/fs/disc_io/disc.h
new file mode 100644
index 0000000..2129359
--- /dev/null
+++ b/sdk-modifications/libsrc/fs/disc_io/disc.h
@@ -0,0 +1,128 @@
+/*
+ disc.h
+ Interface to the low level disc functions. Used by the higher level
+ file system code.
+ 
+ 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
+
+*/
+#ifndef _DISC_H
+#define _DISC_H
+
+#include "../fs_common.h"
+#include "disc_io.h"
+
+/*
+Search for a block based device in the GBA slot.
+Return a pointer to a usable interface if one is found,
+NULL if not.
+*/
+extern const IO_INTERFACE* _FAT_disc_gbaSlotFindInterface (void);
+
+/*
+Search for a block based device in the DS slot.
+Return a pointer to a usable interface if one is found,
+NULL if not.
+*/
+#ifdef NDS
+extern const IO_INTERFACE* _FAT_disc_dsSlotFindInterface (void);
+#endif
+
+/*
+Search for a block based device in the both slots.
+Return a pointer to a usable interface if one is found,
+NULL if not.
+*/
+extern const IO_INTERFACE* _FAT_disc_findInterface (void);
+
+/*
+Check if a disc is inserted
+Return true if a disc is inserted and ready, false otherwise
+*/
+static inline bool _FAT_disc_isInserted (const IO_INTERFACE* disc) {
+	return disc->fn_isInserted();
+}
+
+/*
+Read numSectors sectors from a disc, starting at sector. 
+numSectors is between 1 and 256
+sector is from 0 to 2^28
+buffer is a pointer to the memory to fill
+*/
+//return non-zero is sucess
+static inline bool _FAT_disc_readSectors (const IO_INTERFACE* disc, unsigned long sector, unsigned long numSectors, void* buffer) {
+	return disc->fn_readSectors (sector, numSectors, buffer);
+}
+
+/*
+Write numSectors sectors to a disc, starting at sector. 
+numSectors is between 1 and 256
+sector is from 0 to 2^28
+buffer is a pointer to the memory to read from
+*/
+//return non-zero is sucess
+static inline bool _FAT_disc_writeSectors (const IO_INTERFACE* disc, unsigned long sector, unsigned long numSectors, const void* buffer) {
+	return disc->fn_writeSectors (sector, numSectors, buffer);
+}
+
+/*
+Reset the card back to a ready state
+*/
+static inline bool _FAT_disc_clearStatus (const IO_INTERFACE* disc) {
+	return disc->fn_clearStatus();
+}
+
+/*
+Initialise the disc to a state ready for data reading or writing
+*/
+static inline bool _FAT_disc_startup (const IO_INTERFACE* disc) {
+	return disc->fn_startup();
+}
+
+/*
+Put the disc in a state ready for power down.
+Complete any pending writes and disable the disc if necessary
+*/
+static inline bool _FAT_disc_shutdown (const IO_INTERFACE* disc) {
+	return disc->fn_shutdown();
+}
+
+/*
+Return a 32 bit value unique to each type of interface
+*/
+static inline unsigned long _FAT_disc_hostType (const IO_INTERFACE* disc) {
+	return disc->ioType;
+}
+
+/*
+Return a 32 bit value that specifies the capabilities of the disc
+*/
+static inline unsigned long _FAT_disc_features (const IO_INTERFACE* disc) {
+	return disc->features;
+}
+
+#endif // _DISC_H
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
diff --git a/sdk-modifications/libsrc/fs/disc_io/io_ds2_mmcf.c b/sdk-modifications/libsrc/fs/disc_io/io_ds2_mmcf.c
new file mode 100644
index 0000000..c432d84
--- /dev/null
+++ b/sdk-modifications/libsrc/fs/disc_io/io_ds2_mmcf.c
@@ -0,0 +1,13 @@
+//io_ds2_mmcf.c
+#include "io_ds2_mmcf.h"
+
+const IO_INTERFACE _io_ds2_mmcf = {
+	DEVICE_TYPE_DS2_MMCF,
+	FEATURE_MEDIUM_CANREAD | FEATURE_MEDIUM_CANWRITE,
+	(FN_MEDIUM_STARTUP)&_MMC_StartUp,
+	(FN_MEDIUM_ISINSERTED)&_MMC_IsInserted,
+	(FN_MEDIUM_READSECTORS)&_MMC_ReadSectors,
+	(FN_MEDIUM_WRITESECTORS)&_MMC_WriteSectors,
+	(FN_MEDIUM_CLEARSTATUS)&_MMC_ClearStatus,
+	(FN_MEDIUM_SHUTDOWN)&_MMC_ShutDown
+};
diff --git a/sdk-modifications/libsrc/fs/disc_io/io_ds2_mmcf.h b/sdk-modifications/libsrc/fs/disc_io/io_ds2_mmcf.h
new file mode 100644
index 0000000..334a9bc
--- /dev/null
+++ b/sdk-modifications/libsrc/fs/disc_io/io_ds2_mmcf.h
@@ -0,0 +1,63 @@
+#ifndef __IO_DS2_H__
+#define __IO_DS2_H__
+
+// 'DS2F'
+#define DEVICE_TYPE_DS2_MMCF 0x46434D4D
+
+#include "disc_io.h"
+#include "ds2_mmc_api.h"
+
+// export interface
+extern const IO_INTERFACE _io_ds2_mmcf ;
+
+/* initialize MMC/SD card */
+static inline bool _MMC_StartUp(void)
+{
+	return MMC_Initialize();
+}
+
+/* read multi blocks from MMC/SD card */
+/* read a single block from MMC/SD card */
+static inline bool _MMC_ReadSectors(u32 sector, u32 numSectors, void* buffer)
+{
+	int flag;
+
+	if(numSectors > 1)
+		flag= MMC_ReadMultiBlock(sector, numSectors, (unsigned char*)buffer);
+	else
+		flag= MMC_ReadBlock(sector, (unsigned char*)buffer);
+	return (flag==MMC_NO_ERROR);
+}
+
+/* write multi blocks from MMC/SD card */
+/* write a single block from MMC/SD card */
+static inline bool _MMC_WriteSectors(u32 sector, u32 numSectors, const void* buffer)
+{
+	int flag;
+
+	if(numSectors > 1)
+		flag= MMC_WriteMultiBlock(sector, numSectors, (unsigned char*)buffer);
+	else
+		flag= MMC_WriteBlock(sector, (unsigned char*)buffer);
+
+	return (flag==MMC_NO_ERROR);
+}
+
+static inline bool _MMC_ClearStatus(void)
+{
+	return true;
+}
+
+static inline bool _MMC_ShutDown(void)
+{
+	return true;
+}
+
+static inline bool _MMC_IsInserted(void)
+{
+	return true;
+}
+
+
+#endif //__IO_DS2_H__
+