C++ (Cpp) M_SuspendIntr Examples

Example #1

File: ps2_sbus.c Project: AzagraMac/PS2_SDK

int SBUS_init(void)
{
    int i;
    int old_irq_state;
    int old_intr_state;

    if(__sbus_init) { return(-1); }

    M_SuspendIntr(&old_intr_state);

    M_DisableIrq(PS2_IRQ_SBUS, &old_irq_state);

    M_ReleaseIrqHandler(PS2_IRQ_SBUS);

	for(i = 0; i < 32; i++)
	{
	    _sbus_irq_handlers[i].func = NULL;
	    _sbus_irq_handlers[i].param = NULL;
	}

	M_RegisterIrqHandler(PS2_IRQ_SBUS, (void *) __local_sbus_irq_handler, NULL);

	M_EnableIrq(PS2_IRQ_SBUS);

    M_ResumeIntr(old_intr_state);

    __sbus_init = 1;

	return(0);
}

Example #2

File: ee_sif2.c Project: AKuHAK2/ps2sdk

int SIF2_init(void)
{
    int oldi;

    if(_sif2_inited) { return(-1); }

    _DisableDmac(7);

    M_SuspendIntr(&oldi);

    // Enable DMA
    *R_EE_D_CTRL |= 1;

    *R_LOCAL_SBUS(PS2_SBUS_REG4) = 0x00000100;
    *R_LOCAL_SBUS(PS2_SBUS_REG6) = 0x000000FF;

    *R_EE_D7_CHCR = 0;

    M_ResumeIntr(oldi);

//    EnableDmac(7);

    _sif2_inited = 1;

    return(0);
}

Example #3

File: ee_sif2.c Project: AKuHAK2/ps2sdk

void SIF2_sync_dma(void)
{
    int oldi;

    M_SuspendIntr(&oldi);

    while(1)
    {
        if(!(*R_EE_D7_CHCR & EE_CHCR_STR))
        {
            if((_sif2_xfer_addr != 0) && (_sif2_xfer_size > 0))
            {
                _sif2_xfer_addr += _sif2_xfer_chunk_size;
                _sif2_xfer_size -= _sif2_xfer_chunk_size;
            }

            if((_sif2_xfer_addr != 0) && (_sif2_xfer_size > 0))
            {
                SIF2_RestartDma();
            }
            else
            {
                _sif2_xfer_addr = 0;
                _sif2_xfer_size = 0;
                break;
            }
        }
    }

    M_ResumeIntr(oldi);
}

Example #4

File: ps2_sbus.c Project: AzagraMac/PS2_SDK

// API call
int SBUS_rem_irq_handler(int irq)
{
	int oldi = 0;

    if(irq < 32)
    {
        M_SuspendIntr(&oldi);
        _sbus_irq_handlers[irq].func = NULL;
        _sbus_irq_handlers[irq].param = NULL;
        M_ResumeIntr(oldi);
        return(0);
    }

    return(-1);
}

Example #5

File: ee_sif2.c Project: AKuHAK2/ps2sdk

int SIF2_deinit(void)
{
    int oldi;

    if(!_sif2_inited) { return(-1); }

    _DisableDmac(7);

    M_SuspendIntr(&oldi);
    *R_EE_D7_CHCR = 0;
    M_ResumeIntr(oldi);

    _sif2_inited = 0;

    return(0);
}

Example #6

File: ps2_sbus.c Project: AzagraMac/PS2_SDK

// API call
void *SBUS_set_irq_handler(int irq, SBUS_IrqHandlerFunc func, void *param)
{
	int oldi = 0;
    void *rv = NULL;

    if(irq < 32)
    {
    	M_SuspendIntr(&oldi);
        rv = _sbus_irq_handlers[irq].func;
        _sbus_irq_handlers[irq].func = func;
        _sbus_irq_handlers[irq].param = param;
    	M_ResumeIntr(oldi);
	}

    // return pointer to old handler
	return(rv);
}

Example #7

File: ps2_sbus.c Project: AzagraMac/PS2_SDK

int SBUS_deinit(void)
{
    int old_irq_state;
    int old_intr_state;

    if(!__sbus_init) { return(-1); }

    M_SuspendIntr(&old_intr_state);

    M_DisableIrq(PS2_IRQ_SBUS, &old_irq_state);
    M_ReleaseIrqHandler(PS2_IRQ_SBUS);

    M_ResumeIntr(old_intr_state);

    __sbus_init = 0;

	return(0);
}

Example #8

File: ee_sif2.c Project: AKuHAK2/ps2sdk

int SIF2_RestartDma(void)
{
    int oldi;

    M_SuspendIntr(&oldi);

// disable CH7 interrupt and clear interrupt status
    *R_EE_D_STAT &= 0x00800080;

// enable CH7 priority
//    *R_EE_D_PCR |= 0x00800000;

    _sif2_xfer_chunk_size = (_sif2_xfer_size > SIF2_XFER_CHUNK_SIZE) ? SIF2_XFER_CHUNK_SIZE : _sif2_xfer_size;

    *R_EE_D7_CHCR = 0;
    *R_EE_D7_MADR = (_sif2_xfer_addr & 0x0FFFFFFF);
    *R_EE_D7_QWC = ((_sif2_xfer_chunk_size + 15) / 16);
    *R_EE_D7_CHCR = _sif2_xfer_attr | EE_CHCR_STR;

    M_ResumeIntr(oldi);
}