static int isapnp_get_resources()

in isapnp/core.c [848:883]

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

static int isapnp_get_resources(struct pnp_dev *dev)
{
	int i, ret;

	pnp_dbg(&dev->dev, "get resources\n");
	pnp_init_resources(dev);
	isapnp_cfg_begin(dev->card->number, dev->number);
	dev->active = isapnp_read_byte(ISAPNP_CFG_ACTIVATE);
	if (!dev->active)
		goto __end;

	for (i = 0; i < ISAPNP_MAX_PORT; i++) {
		ret = isapnp_read_word(ISAPNP_CFG_PORT + (i << 1));
		pnp_add_io_resource(dev, ret, ret,
				    ret == 0 ? IORESOURCE_DISABLED : 0);
	}
	for (i = 0; i < ISAPNP_MAX_MEM; i++) {
		ret = isapnp_read_word(ISAPNP_CFG_MEM + (i << 3)) << 8;
		pnp_add_mem_resource(dev, ret, ret,
				     ret == 0 ? IORESOURCE_DISABLED : 0);
	}
	for (i = 0; i < ISAPNP_MAX_IRQ; i++) {
		ret = isapnp_read_word(ISAPNP_CFG_IRQ + (i << 1)) >> 8;
		pnp_add_irq_resource(dev, ret,
				     ret == 0 ? IORESOURCE_DISABLED : 0);
	}
	for (i = 0; i < ISAPNP_MAX_DMA; i++) {
		ret = isapnp_read_byte(ISAPNP_CFG_DMA + i);
		pnp_add_dma_resource(dev, ret,
				     ret == 4 ? IORESOURCE_DISABLED : 0);
	}

__end:
	isapnp_cfg_end();
	return 0;
}