daedalus/Source/OSHLE/patch_si_hle.inl

#define TEST_DISABLE_SI_FUNCS DAEDALUS_PROFILE(__FUNCTION__);

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiCreateAccessQueue()
{
TEST_DISABLE_SI_FUNCS
#ifdef DAED_OS_MESSAGE_QUEUES

	Write32Bits(VAR_ADDRESS(osSiAccessQueueCreated), 1);
#ifdef DAEDALUS_DEBUG_CONSOLE
	DBGConsole_Msg(0, "Creating Si Access Queue");
#endif
	OS_HLE_osCreateMesgQueue(VAR_ADDRESS(osSiAccessQueue), VAR_ADDRESS(osSiAccessQueueBuffer), 1);

	//u32 dwQueue     = (u32)gGPR[REG_a0]._u32_0;
	//u32 dwMsg       = (u32)gGPR[REG_a1]._u32_0;
	//u32 dwBlockFlag = (u32)gGPR[REG_a2]._u32_0;

	gGPR[REG_a0]._u32_0 = VAR_ADDRESS(osSiAccessQueue);
	gGPR[REG_a1]._u32_0 = 0;		// Msg value is unimportant
	gGPR[REG_a2]._u32_0 = OS_MESG_NOBLOCK;

	return Patch_osSendMesg();

	//return PATCH_RET_JR_RA;

#else

	return PATCH_RET_NOT_PROCESSED0(__osSiCreateAccessQueue);

#endif
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiGetAccess()
{
TEST_DISABLE_SI_FUNCS
	u32 created = Read32Bits(VAR_ADDRESS(osSiAccessQueueCreated));

	if (created == 0)
	{
		Patch___osSiCreateAccessQueue();	// Ignore return
	}

	gGPR[REG_a0]._u32_0 = VAR_ADDRESS(osSiAccessQueue);
	gGPR[REG_a1]._u32_0 = gGPR[REG_sp]._u32_0 - 4;		// Place on stack and ignore
	gGPR[REG_a2]._u32_0 = OS_MESG_BLOCK;

	return Patch_osRecvMesg();
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiRelAccess()
{
TEST_DISABLE_SI_FUNCS
	gGPR[REG_a0]._u32_0 = VAR_ADDRESS(osSiAccessQueue);
	gGPR[REG_a1]._u32_0 = 0;		// Place on stack and ignore
	gGPR[REG_a2]._u32_0 = OS_MESG_NOBLOCK;

	return Patch_osSendMesg();
}

//*****************************************************************************
//
//*****************************************************************************
inline bool IsSiDeviceBusy()
{
	u32 status = Memory_SI_GetRegister( SI_STATUS_REG );

	if (status & (SI_STATUS_DMA_BUSY | SI_STATUS_RD_BUSY))
		return true;
	else
		return false;
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiDeviceBusy()
{
	gGPR[REG_v0]._s64 = (s64)IsSiDeviceBusy();

	return PATCH_RET_JR_RA;
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiRawReadIo_Mario()
{
	u32 port = gGPR[REG_a0]._u32_0;
	u32 valAddr = gGPR[REG_a1]._u32_0;

	if (IsSiDeviceBusy() != 0)
		gGPR[REG_v0]._s64 = -1;
	else
	{
		port |= 0xA0000000;
		Write32Bits(valAddr, Read32Bits(port));
		gGPR[REG_v0]._s64 = 0;
	}
	return PATCH_RET_JR_RA;
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiRawReadIo_Zelda()
{
	u32 port = gGPR[REG_a0]._u32_0;
	u32 valAddr = gGPR[REG_a1]._u32_0;

	if (IsSiDeviceBusy() != 0)
		gGPR[REG_v0]._s64 = -1;
	else
	{
		port |= 0xA0000000;
		Write32Bits(valAddr, Read32Bits(port));
		gGPR[REG_v0]._s64 = 0;
	}
	return PATCH_RET_JR_RA;
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiRawWriteIo_Mario()
{
	u32 port = gGPR[REG_a0]._u32_0;
	u32 val = gGPR[REG_a1]._u32_0;

	if (IsSiDeviceBusy() != 0)
		gGPR[REG_v0]._s64 = -1;
	else
	{
		port |= 0xA0000000;
		Write32Bits(port, val);
		gGPR[REG_v0]._s64 = 0;
	}
	return PATCH_RET_JR_RA;
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiRawWriteIo_Zelda()
{
	u32 port = gGPR[REG_a0]._u32_0;
	u32 val = gGPR[REG_a1]._u32_0;

	if (IsSiDeviceBusy() != 0)
		gGPR[REG_v0]._s64 = -1;
	else
	{
		port |= 0xA0000000;
		Write32Bits(port, val);
		gGPR[REG_v0]._s64 = 0;
	}
	return PATCH_RET_JR_RA;
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiRawStartDma_Mario()
{
	u32 RWflag = gGPR[REG_a0]._u32_0;
	u32 SIAddr = gGPR[REG_a1]._u32_0;

#ifdef DAEDALUS_DEBUG_CONSOLE
	DAEDALUS_ASSERT( !IsSiDeviceBusy(), "Si Device is BUSY, Need to handle!");
#endif
	/*
	if (IsSiDeviceBusy())
	{
		gGPR[REG_v0]._u32_0 = ~0;
		return PATCH_RET_JR_RA;
	}
	*/

	u32 PAddr = ConvertToPhysical(SIAddr);

	Memory_SI_SetRegister( SI_DRAM_ADDR_REG, PAddr);
	if(RWflag == OS_READ)
	{
		//Memory_SI_SetRegister( SI_PIF_ADDR_RD64B_REG, 0x1FC007C0);
		DMA_SI_CopyToDRAM();
	}
	else
	{
		//Memory_SI_SetRegister( SI_PIF_ADDR_WR64B_REG, 0x1FC007C0);
		DMA_SI_CopyFromDRAM();
	}

	gGPR[REG_v0]._s64 = 0;

	return PATCH_RET_JR_RA;
}

//*****************************************************************************
//
//*****************************************************************************
u32 Patch___osSiRawStartDma_Rugrats()
{
	u32 RWflag = gGPR[REG_a0]._u32_0;
	u32 SIAddr = gGPR[REG_a1]._u32_0;
#ifdef DAEDALUS_DEBUG_CONSOLE
	DAEDALUS_ASSERT( !IsSiDeviceBusy(), "Si Device is BUSY, Need to handle!");
	#endif
	/*
	if (IsSiDeviceBusy())
	{
		gGPR[REG_v0]._u32_0 = ~0;
		return PATCH_RET_JR_RA;
	}
	*/

	u32 PAddr = ConvertToPhysical(SIAddr);

	Memory_SI_SetRegister( SI_DRAM_ADDR_REG, PAddr);
	if(RWflag == OS_READ)
	{
		//Memory_SI_SetRegister( SI_PIF_ADDR_RD64B_REG, 0x1FC007C0);
		DMA_SI_CopyToDRAM();
	}
	else
	{
		//Memory_SI_SetRegister( SI_PIF_ADDR_WR64B_REG, 0x1FC007C0);
		DMA_SI_CopyFromDRAM();
	}

	gGPR[REG_v0]._s64 = 0;

	return PATCH_RET_JR_RA;
}