示例#1
0
static void __init
wildfire_init_irq(void)
{
	int qbbno, pcano;

#if 1
	wildfire_init_irq_hw();
	init_i8259a_irqs();
#endif

	for (qbbno = 0; qbbno < WILDFIRE_MAX_QBB; qbbno++) {
	  if (WILDFIRE_QBB_EXISTS(qbbno)) {
	    for (pcano = 0; pcano < WILDFIRE_PCA_PER_QBB; pcano++) {
	      if (WILDFIRE_PCA_EXISTS(qbbno, pcano)) {
		wildfire_init_irq_per_pca(qbbno, pcano);
	      }
	    }
	  }
	}
}
示例#2
0
static void __init
wildfire_init_irq_per_pca(int qbbno, int pcano)
{
	int i, irq_bias;
	static struct irqaction isa_enable = {
		.handler	= no_action,
		.name		= "isa_enable",
	};

	irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
		 + pcano * WILDFIRE_IRQ_PER_PCA;

#if 0
	unsigned long io_bias;

	/* Only need the following for first PCI bus per PCA. */
	io_bias = WILDFIRE_IO(qbbno, pcano<<1) - WILDFIRE_IO_BIAS;

	outb(0, DMA1_RESET_REG + io_bias);
	outb(0, DMA2_RESET_REG + io_bias);
	outb(DMA_MODE_CASCADE, DMA2_MODE_REG + io_bias);
	outb(0, DMA2_MASK_REG + io_bias);
#endif

#if 0
	/* ??? Not sure how to do this, yet... */
	init_i8259a_irqs(); /* ??? */
#endif

	for (i = 0; i < 16; ++i) {
		if (i == 2)
			continue;
		irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type,
					 handle_level_irq);
		irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
	}

	irq_set_chip_and_handler(36 + irq_bias, &wildfire_irq_type,
				 handle_level_irq);
	irq_set_status_flags(36 + irq_bias, IRQ_LEVEL);
	for (i = 40; i < 64; ++i) {
		irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type,
					 handle_level_irq);
		irq_set_status_flags(i + irq_bias, IRQ_LEVEL);
	}

	setup_irq(32+irq_bias, &isa_enable);
}

static void __init
wildfire_init_irq(void)
{
	int qbbno, pcano;

#if 1
	wildfire_init_irq_hw();
	init_i8259a_irqs();
#endif

	for (qbbno = 0; qbbno < WILDFIRE_MAX_QBB; qbbno++) {
	  if (WILDFIRE_QBB_EXISTS(qbbno)) {
	    for (pcano = 0; pcano < WILDFIRE_PCA_PER_QBB; pcano++) {
	      if (WILDFIRE_PCA_EXISTS(qbbno, pcano)) {
		wildfire_init_irq_per_pca(qbbno, pcano);
	      }
	    }
	  }
	}
}