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81 lines
2.6 KiB
C
81 lines
2.6 KiB
C
#ifndef NITRO_MI_DMA_H_
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#define NITRO_MI_DMA_H_
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#include <nitro/mi/dma_shared.h>
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#include <nitro/hw/io_reg.h>
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#include <nitro/os/system.h>
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typedef void (*MIDmaCallback)(void *);
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#define MI_DMA_MAX_NUM 3
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#define REG_ADDR_DMA0CNT 0x40000b8
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#define REG_ADDR_DMA0_CLR_DATA 0x40000e0
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#define MI_CNT_CLEAR32(size) (0x85000000 | ((size)/4))
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#define MI_CNT_CLEAR32_IF(size) (0xc5000000 | ((size)/4))
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#define MI_CNT_COPY32(size) (0x84000000 | ((size)/4))
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#define MI_CNT_COPY32_IF(size) (0xc4000000 | ((size)/4))
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#define MI_CNT_COPY16(size) (0x80000000 | ((size)/2))
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#define MI_DMA_SRC_FIX (2UL << 23)
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#define MI_DMA_SRC_INC (0UL << 23)
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#define MI_DMA_16BIT_BUS (0UL << 26)
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#define MI_DMA_32BIT_BUS (1UL << 26)
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#define MIi_DMA_TIMING_ANY (u32)(~0)
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#define MI_DMA_TIMING_H_BLANK (2UL << 27)
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typedef union
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{
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u32 b32;
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u16 b16;
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} MIiDmaClearSrc;
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void MI_DmaFill32(u32 dmaNo, void *dest, u32 data, u32 size);
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void MI_DmaCopy32(u32 dmaNo, const void *src, void *dest, u32 size);
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void MI_DmaCopy16(u32 dmaNo, const void *src, void *dest, u32 size);
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void MI_DmaFill32Async(u32 dmaNo, void *dest, u32 data, u32 size, MIDmaCallback callback, void *arg);
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void MI_DmaCopy32Async(u32 dmaNo, const void *src, void *dest, u32 size, MIDmaCallback callback, void *arg);
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void MI_WaitDma(u32 dmaNo);
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void MI_StopDma(u32 dmaNo);
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void MIi_CheckAnotherAutoDMA(u32 dmaNo, u32 dmaType);
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void MIi_CheckDma0SourceAddress(u32 dmaNo, u32 src, u32 size, u32 dir);
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void MIi_DmaSetParams(u32 dmaNo, u32 src, u32 dest, u32 ctrl);
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void MIi_DmaSetParams_wait(u32 dmaNo, u32 src, u32 dest, u32 ctrl);
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void MIi_DmaSetParams_noInt(u32 dmaNo, u32 src, u32 dest, u32 ctrl);
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void MIi_DmaSetParams_wait_noInt(u32 dmaNo, u32 src, u32 dest, u32 ctrl);
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static inline void MIi_DmaSetParams_wait_src32(u32 dmaNo, u32 data, u32 dest, u32 ctrl)
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{
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OSIntrMode lastIntrMode = OS_DisableInterrupts();
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MIiDmaClearSrc *scrp = (MIiDmaClearSrc *) ((u32)REG_ADDR_DMA0_CLR_DATA + dmaNo * 4);
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scrp->b32 = data;
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MIi_DmaSetParams_wait_noInt(dmaNo, (u32)scrp, dest, ctrl);
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(void)OS_RestoreInterrupts(lastIntrMode);
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}
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static inline void MIi_DmaSetParams_src32(u32 dmaNo, u32 data, u32 dest, u32 ctrl)
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{
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OSIntrMode lastIntrMode = OS_DisableInterrupts();
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MIiDmaClearSrc *srcp = (MIiDmaClearSrc *) ((u32)REG_ADDR_DMA0_CLR_DATA + dmaNo * 4);
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srcp->b32 = data;
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MIi_DmaSetParams_noInt(dmaNo, (u32)srcp, dest, ctrl);
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(void)OS_RestoreInterrupts(lastIntrMode);
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}
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static inline void MIi_CallCallback(MIDmaCallback callback, void *arg)
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{
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if (callback)
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{
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(callback) (arg);
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}
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}
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#endif //NITRO_MI_DMA_H_
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