The Socrates Gameboy Advance Development EngineThe SGADE is a development library for the Nintendo Gameboy Advance. It's free for all uses and is distributed without guarantees. For more information visit the SGADE page.
The Socrates Gameboy Advance Development Engine
The SGADE is a development library for the Nintendo Gameboy
Advance. It's free for all uses and is distributed without guarantees.
For more information visit
the SGADE page.
00001 // ---------------------------------------------------------------------------- 00013 // ---------------------------------------------------------------------------- 00014 00015 #ifndef SO_DMA_H 00016 #define SO_DMA_H 00017 00018 #ifdef __cplusplus 00019 extern "C" { 00020 #endif 00021 00022 // ---------------------------------------------------------------------------- 00073 00075 // ---------------------------------------------------------------------------- 00076 00077 // ---------------------------------------------------------------------------- 00078 // Includes 00079 // ---------------------------------------------------------------------------- 00080 #include "SoSystem.h" 00081 00082 // ---------------------------------------------------------------------------- 00083 // Defines 00084 // ---------------------------------------------------------------------------- 00085 00086 #define SO_DMA_DEST_INC 0 00087 #define SO_DMA_DEST_DEC (SO_BIT_5) 00088 #define SO_DMA_DEST_FIX (SO_BIT_6) 00089 00090 #define SO_DMA_SOURCE_INC 0 00091 #define SO_DMA_SOURCE_DEC (SO_BIT_7) 00092 #define SO_DMA_SOURCE_FIX (SO_BIT_8) 00093 00094 #define SO_DMA_REPEAT (SO_BIT_9) 00095 00096 #define SO_DMA_16 0 00097 #define SO_DMA_32 (SO_BIT_10) 00098 00099 #define SO_DMA_START_NOW 0 00100 #define SO_DMA_START_VBL (SO_BIT_12) 00101 #define SO_DMA_START_HBL (SO_BIT_13) 00102 00105 #define SO_DMA_START_FIFO (SO_BIT_12 | SO_BIT_13) 00106 00108 #define SO_DMA_INTERRUPT (SO_BIT_14) 00109 00110 00111 // ---------------------------------------------------------------------------- 00112 // Macros; 00113 // ---------------------------------------------------------------------------- 00114 00116 #define SO_DMA_MEMCPY(src, dest, wordcount) \ 00117 { \ 00118 SoDMATransfer(3, (void*)src, (void*)dest, wordcount, \ 00119 SO_DMA_SOURCE_INC|SO_DMA_DEST_INC|SO_DMA_32); \ 00120 } 00121 00123 #define SO_DMA_MEMCPY_REV(src, dest, wordcount) \ 00124 { \ 00125 SoDMATransfer(3, (u32*)(src)+((wordcount)-1), \ 00126 (u32*)(dest)+((wordcount)-1), wordcount, \ 00127 SO_DMA_SOURCE_DEC|SO_DMA_DEST_DEC|SO_DMA_32); \ 00128 } 00129 00131 #define SO_DMA_MEMSET(dest, wordcount, value) \ 00132 { \ 00133 u32 data = value; \ 00134 SoDMATransfer(3, &data, (void*)dest, wordcount, \ 00135 SO_DMA_SOURCE_FIX|SO_DMA_DEST_INC|SO_DMA_32); \ 00136 } 00137 00138 00139 // ---------------------------------------------------------------------------- 00140 // Public methods; 00141 // ---------------------------------------------------------------------------- 00142 void SoDMAStop( u32 a_Channel ); 00143 00144 void SoDMATransfer ( u32 a_Channel, void* a_Source, void* a_Destination, u32 a_WordCount, u32 a_Control ); 00145 00146 void SoDMA0Transfer( const void *a_Source, void *a_Destination, u32 a_WordCount, u32 a_Control ); 00147 void SoDMA1Transfer( const void *a_Source, void *a_Destination, u32 a_WordCount, u32 a_Control ); 00148 void SoDMA2Transfer( const void *a_Source, void *a_Destination, u32 a_WordCount, u32 a_Control ); 00149 void SoDMA3Transfer( const void *a_Source, void *a_Destination, u32 a_WordCount, u32 a_Control ); 00150 00151 // ---------------------------------------------------------------------------- 00152 // EOF; 00153 // ---------------------------------------------------------------------------- 00154 00156 00157 #ifdef __cplusplus 00158 } // extern "C" 00159 #endif 00160 00161 #endif