#include <nitro/mi.h> void MI_DmaFill32( u32 dmaNo, void* dest, u32 data, u32 size ); void MI_DmaFill16( u32 dmaNo, void* dest, u32 data, u32 size ); void MI_DmaFill32Async( u32 dmaNo, void* dest, u32 data, u32 size, MIDmaCallback callback, void* arg ); void MI_DmaFill16Async( u32 dmaNo, void* dest, u32 data, u32 size, MIDmaCallback callback, void* arg );
| dmaNo | DMA channel used |
| dest | The transfer destination address. |
| data | The data that will be transferred |
| size | Transfer size |
| callback | Callback when DMA ends. |
| arg | Callback argument when DMA ends. |
None.
Uses DMA to fill memory with the specified data.
MI_DmaFill16() and MI_DmaFill16Async() fill memory with the specified data in 16-bit units. You must 2-byte align the transfer destination address. MI_DmaFill32() and MI_DmaFill32Async() fill memory with the specified data in 32-bit units. You must 4-byte align the transfer destination address.
MI_DmaFill16() and MI_DmaFill32() wait within the function until DMA completes. MI_DmaFill16Async() and MI_DmaFill32Async() call a callback function when DMA ends. The callback, callback, is a MIDmaCallback type (a void type function which takes one void* argument). callback is called from the system DMA interrupt handler and therefore is called while interrupts are prohibited.
Uses the following IO registers: DMAn source register (0x40000B0 + 12n), DMAn destination register (0x40000B4 + 12n), and DMAn control register (0x40000B8 + 12n). n is the DMA channel used.))In addition, the HW_DMA_CLEAR_DATA_BUF region is used for fill. This region is occupied by shared memory for the TEG board but is mapped to the IO registers for TS.
MI_DmaCopy*, MI_DmaClear*, MI_DmaSend*, MI_CpuFill*
03/08/2005 Standardized the Japanese term for "interrupt".
12/22/2004 Added a description regarding callback.
12/01/2003 Initial version
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