Пример #1
0
u32 AR_Init(u32 *stack_idx_array,u32 num_entries)
{
#ifdef _AR_DEBUG
	u32 freq;
#endif
	u32 level;
	u32 aram_base = 0x4000;

	if(__ARInit_Flag) return aram_base;

	_CPU_ISR_Disable(level);

	__ARDmaCallback = NULL;

	IRQ_Request(IRQ_DSP_ARAM,__ARHandler,NULL);
	__UnmaskIrq(IRQMASK(IRQ_DSP_ARAM));
	
	__ARStackPointer = aram_base;
	__ARFreeBlocks = num_entries;
	__ARBlockLen = stack_idx_array;
#ifdef _AR_DEBUG
	freq = _dspReg[13]&0xff;
	if(((f32)freq)!=156.0 && ((f32)freq)!=176.0) {
		printf("AR_Init(): Illegal SDRAM refresh value(%f)\n",(f32)(freq));
		abort();
	}
#endif
	_dspReg[13] = (_dspReg[13]&~0xff)|(_dspReg[13]&0xff);
	
	__ARCheckSize();
	__ARInit_Flag = 1;
	
	_CPU_ISR_Restore(level);
	return __ARStackPointer;
}
Пример #2
0
u32 AR_Init(u32 *stack_idx_array,u32 num_entries)
{
	u32 level;
	u32 aram_base = 0x4000;

	if(__ARInit_Flag) return aram_base;

	_CPU_ISR_Disable(level);

	__ARDmaCallback = NULL;

	IRQ_Request(IRQ_DSP_ARAM,__ARHandler,NULL);
	__UnmaskIrq(IRQMASK(IRQ_DSP_ARAM));

	__ARStackPointer = aram_base;
	__ARFreeBlocks = num_entries;
	__ARBlockLen = stack_idx_array;
	_dspReg[13] = (_dspReg[13]&~0xff)|(_dspReg[13]&0xff);

	__ARCheckSize();
	__ARInit_Flag = 1;

	_CPU_ISR_Restore(level);
	return __ARStackPointer;
}
Пример #3
0
static __inline__ void __exi_setinterrupts(s32 nChn,exibus_priv *exi)
{
	exibus_priv *pexi = &eximap[EXI_CHANNEL_2];
	if(nChn==EXI_CHANNEL_0) {
		__MaskIrq((IRQMASK(IRQ_EXI0_EXI)|IRQMASK(IRQ_EXI2_EXI)));
		if(!(exi->flags&EXI_FLAG_LOCKED) && (exi->CallbackEXI || pexi->CallbackEXI))
			__UnmaskIrq((IRQMASK(IRQ_EXI0_EXI)|IRQMASK(IRQ_EXI2_EXI)));
	} else if(nChn==EXI_CHANNEL_1) {
		__MaskIrq(IRQMASK(IRQ_EXI1_EXI));
		if(!(exi->flags&EXI_FLAG_LOCKED) && exi->CallbackEXI) __UnmaskIrq(IRQMASK(IRQ_EXI1_EXI));
	} else if(nChn==EXI_CHANNEL_2) {				//explicitly use of channel 2 only if debugger is attached.
		__MaskIrq(IRQMASK(IRQ_EXI0_EXI));
		if(!(exi->flags&EXI_FLAG_LOCKED) && IRQ_GetHandler(IRQ_PI_DEBUG)) __UnmaskIrq(IRQMASK(IRQ_EXI2_EXI));
	}
}
Пример #4
0
static s32 __exi_attach(s32 nChn,EXICallback ext_cb)
{
	s32 ret;
	u32 level;
	exibus_priv *exi = &eximap[nChn];
	_CPU_ISR_Disable(level);
	ret = 0;
	if(!(exi->flags&EXI_FLAG_ATTACH)) {
		if(__exi_probe(nChn)==1) {
			__exi_clearirqs(nChn,1,0,0);
			exi->CallbackEXT = ext_cb;
			__UnmaskIrq(((IRQMASK(IRQ_EXI0_EXT))>>(nChn*3)));
			exi->flags |= EXI_FLAG_ATTACH;
			ret = 1;
		}
	}
Пример #5
0
void DSP_Init()
{
	u32 level;
#ifdef _DSP_DEBUG
	printf("DSP_Init()\n");
#endif
	_CPU_ISR_Disable(level);
	if(__dsp_inited==FALSE) {
		__dsp_intcb= __dsp_def_taskcb;

		IRQ_Request(IRQ_DSP_DSP,__dsp_inthandler,NULL);
		__UnmaskIrq(IRQMASK(IRQ_DSP_DSP));

		_dspReg[5] = (_dspReg[5]&~(DSPCR_AIINT|DSPCR_ARINT|DSPCR_DSPINT))|DSPCR_DSPRESET;
		_dspReg[5] = (_dspReg[5]&~(DSPCR_HALT|DSPCR_AIINT|DSPCR_ARINT|DSPCR_DSPINT));

		__dsp_currtask = NULL;
		__dsp_firsttask = NULL;
		__dsp_lasttask = NULL;
		tmp_task = NULL;
		__dsp_inited = TRUE;
	}
	_CPU_ISR_Restore(level);
}