From 8693ae1bd880a758eb2efec4fccd32f89593855d Mon Sep 17 00:00:00 2001
From: Nebuleon Fumika
Date: Sun, 3 Feb 2013 04:19:11 -0500
Subject: Add SDK modifications by BassAceGold as of 2011-04-14, as well as
 modified DMA functions as of 2013-01-29.

---
 sdk-modifications/libsrc/fs/disc_io/disc_io.h | 83 +++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 sdk-modifications/libsrc/fs/disc_io/disc_io.h

(limited to 'sdk-modifications/libsrc/fs/disc_io/disc_io.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
-- 
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