static int isapnp_set_resources()

in isapnp/core.c [885:933]

• 47 lines of code
• 10 McCabe index (conditional complexity)

static int isapnp_set_resources(struct pnp_dev *dev)
{
	struct resource *res;
	int tmp;

	pnp_dbg(&dev->dev, "set resources\n");
	isapnp_cfg_begin(dev->card->number, dev->number);
	dev->active = 1;
	for (tmp = 0; tmp < ISAPNP_MAX_PORT; tmp++) {
		res = pnp_get_resource(dev, IORESOURCE_IO, tmp);
		if (pnp_resource_enabled(res)) {
			pnp_dbg(&dev->dev, "  set io  %d to %#llx\n",
				tmp, (unsigned long long) res->start);
			isapnp_write_word(ISAPNP_CFG_PORT + (tmp << 1),
					  res->start);
		}
	}
	for (tmp = 0; tmp < ISAPNP_MAX_IRQ; tmp++) {
		res = pnp_get_resource(dev, IORESOURCE_IRQ, tmp);
		if (pnp_resource_enabled(res)) {
			int irq = res->start;
			if (irq == 2)
				irq = 9;
			pnp_dbg(&dev->dev, "  set irq %d to %d\n", tmp, irq);
			isapnp_write_byte(ISAPNP_CFG_IRQ + (tmp << 1), irq);
		}
	}
	for (tmp = 0; tmp < ISAPNP_MAX_DMA; tmp++) {
		res = pnp_get_resource(dev, IORESOURCE_DMA, tmp);
		if (pnp_resource_enabled(res)) {
			pnp_dbg(&dev->dev, "  set dma %d to %lld\n",
				tmp, (unsigned long long) res->start);
			isapnp_write_byte(ISAPNP_CFG_DMA + tmp, res->start);
		}
	}
	for (tmp = 0; tmp < ISAPNP_MAX_MEM; tmp++) {
		res = pnp_get_resource(dev, IORESOURCE_MEM, tmp);
		if (pnp_resource_enabled(res)) {
			pnp_dbg(&dev->dev, "  set mem %d to %#llx\n",
				tmp, (unsigned long long) res->start);
			isapnp_write_word(ISAPNP_CFG_MEM + (tmp << 3),
					  (res->start >> 8) & 0xffff);
		}
	}
	/* FIXME: We aren't handling 32bit mems properly here */
	isapnp_activate(dev->number);
	isapnp_cfg_end();
	return 0;
}