C++ (Cpp) CIC_EXT_IS_ACTIVE_HI示例

示例#1

static irqreturn_t hwbutton_handler(int irq, void *data)
{
	struct hwbutton_interrupt *hirq = data;
	unsigned long cic_ext = *CIC_EXT_CFG_REG;

	if (CIC_EXT_IS_ACTIVE_HI(cic_ext, hirq->eirq)) {
		/* Interrupt: pin is now HI */
		CIC_EXT_SET_ACTIVE_LO(cic_ext, hirq->eirq);
		hirq->handle_hi(hirq->data);
	} else {
		/* Interrupt: pin is now LO */
		CIC_EXT_SET_ACTIVE_HI(cic_ext, hirq->eirq);
		hirq->handle_lo(hirq->data);
	}

	/*
	 * Invert the POLARITY of this level interrupt to ack the interrupt
	 * Thus next state change will invoke the opposite message
	 */
	*CIC_EXT_CFG_REG = cic_ext;

	return IRQ_HANDLED;
}

示例#2

文件： msp_hwbutton.c 项目： romanbb/android_kernel_lge_d851

static irqreturn_t hwbutton_handler(int irq, void *data)
{
	struct hwbutton_interrupt *hirq = data;
	unsigned long cic_ext = *CIC_EXT_CFG_REG;

	if (CIC_EXT_IS_ACTIVE_HI(cic_ext, hirq->eirq)) {
		/*                          */
		CIC_EXT_SET_ACTIVE_LO(cic_ext, hirq->eirq);
		hirq->handle_hi(hirq->data);
	} else {
		/*                          */
		CIC_EXT_SET_ACTIVE_HI(cic_ext, hirq->eirq);
		hirq->handle_lo(hirq->data);
	}

	/*
                                                                    
                                                           
  */
	*CIC_EXT_CFG_REG = cic_ext;

	return IRQ_HANDLED;
}