C++ (Cpp) __irq_demux示例

示例#1

文件： setup_hd64461.c 项目： ya-mouse/cnu-680pro

int hd64461_irq_demux(int irq)
{
	if (irq == CONFIG_HD64461_IRQ) {
		unsigned short bit;
		unsigned short nirr = inw(HD64461_NIRR);
		unsigned short nimr = inw(HD64461_NIMR);
		nirr &= ~nimr;
		for (bit = 1, irq = 0; irq < 16; bit <<= 1, irq++)
			if (nirr & bit) break;
		if (irq == 16) irq = CONFIG_HD64461_IRQ;
		else irq += HD64461_IRQBASE;
	}
	return __irq_demux(irq);
}

示例#2

文件： setup.c 项目： ManiacTwister/linux-hnd

int hd64461_irq_demux(int irq)
{
	if (irq == CONFIG_HD64461_IRQ) {
		unsigned short bit;
		unsigned short nirr = inw(HD64461_NIRR);
		unsigned short nimr = inw(HD64461_NIMR);
		int i;

		nirr &= ~nimr;
		for (bit = 1, i = 0; i < 16; bit <<= 1, i++)
			if (nirr & bit)
				break;
		if (i == 16)
			irq = CONFIG_HD64461_IRQ;
		else {
			irq = HD64461_IRQBASE + i;
			if (hd64461_demux[i].func != 0) {
				irq = hd64461_demux[i].func(irq, hd64461_demux[i].dev);
			}
		}
	}
	return __irq_demux(irq);
}