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68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
#ifndef _IOP_DMACCHANNEL_H_
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#define _IOP_DMACCHANNEL_H_
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#include "convertible.h"
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#include "Types.h"
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#include <boost/static_assert.hpp>
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#include <functional>
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namespace Iop
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{
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class CDmac;
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namespace Dmac
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{
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class CChannel
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{
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public:
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typedef std::function<uint32 (uint8*, uint32, uint32)> ReceiveFunctionType;
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enum
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{
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REG_MADR = 0x00,
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REG_BCR = 0x04,
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REG_CHCR = 0x08
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};
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struct BCR : public convertible<uint32>
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{
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unsigned int bs : 16;
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unsigned int ba : 16;
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};
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BOOST_STATIC_ASSERT(sizeof(BCR) == sizeof(uint32));
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struct CHCR : public convertible<uint32>
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{
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unsigned int dr : 1;
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unsigned int unused0 : 8;
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unsigned int co : 1;
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unsigned int li : 1;
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unsigned int unused1 : 13;
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unsigned int tr : 1;
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unsigned int unused2 : 7;
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};
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BOOST_STATIC_ASSERT(sizeof(CHCR) == sizeof(uint32));
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CChannel(uint32, unsigned int, CDmac&);
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virtual ~CChannel();
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void Reset();
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void SetReceiveFunction(const ReceiveFunctionType&);
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void ResumeDma();
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uint32 ReadRegister(uint32);
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void WriteRegister(uint32, uint32);
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private:
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ReceiveFunctionType m_receiveFunction;
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unsigned int m_number;
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uint32 m_baseAddress;
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uint32 m_MADR;
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BCR m_BCR;
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CHCR m_CHCR;
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CDmac& m_dmac;
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};
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}
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}
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#endif
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