void dbg_pnp_show_option()

in support.c [104:178]

• 73 lines of code
• 13 McCabe index (conditional complexity)

void dbg_pnp_show_option(struct pnp_dev *dev, struct pnp_option *option)
{
	char buf[128];
	int len = 0, i;
	struct pnp_port *port;
	struct pnp_mem *mem;
	struct pnp_irq *irq;
	struct pnp_dma *dma;

	if (pnp_option_is_dependent(option))
		len += scnprintf(buf + len, sizeof(buf) - len,
				 "  dependent set %d (%s) ",
				 pnp_option_set(option),
				 pnp_option_priority_name(option));
	else
		len += scnprintf(buf + len, sizeof(buf) - len,
				 "  independent ");

	switch (option->type) {
	case IORESOURCE_IO:
		port = &option->u.port;
		len += scnprintf(buf + len, sizeof(buf) - len, "io  min %#llx "
				 "max %#llx align %lld size %lld flags %#x",
				 (unsigned long long) port->min,
				 (unsigned long long) port->max,
				 (unsigned long long) port->align,
				 (unsigned long long) port->size, port->flags);
		break;
	case IORESOURCE_MEM:
		mem = &option->u.mem;
		len += scnprintf(buf + len, sizeof(buf) - len, "mem min %#llx "
				 "max %#llx align %lld size %lld flags %#x",
				 (unsigned long long) mem->min,
				 (unsigned long long) mem->max,
				 (unsigned long long) mem->align,
				 (unsigned long long) mem->size, mem->flags);
		break;
	case IORESOURCE_IRQ:
		irq = &option->u.irq;
		len += scnprintf(buf + len, sizeof(buf) - len, "irq");
		if (bitmap_empty(irq->map.bits, PNP_IRQ_NR))
			len += scnprintf(buf + len, sizeof(buf) - len,
					 " <none>");
		else {
			for (i = 0; i < PNP_IRQ_NR; i++)
				if (test_bit(i, irq->map.bits))
					len += scnprintf(buf + len,
							 sizeof(buf) - len,
							 " %d", i);
		}
		len += scnprintf(buf + len, sizeof(buf) - len, " flags %#x",
				 irq->flags);
		if (irq->flags & IORESOURCE_IRQ_OPTIONAL)
			len += scnprintf(buf + len, sizeof(buf) - len,
					 " (optional)");
		break;
	case IORESOURCE_DMA:
		dma = &option->u.dma;
		len += scnprintf(buf + len, sizeof(buf) - len, "dma");
		if (!dma->map)
			len += scnprintf(buf + len, sizeof(buf) - len,
					 " <none>");
		else {
			for (i = 0; i < 8; i++)
				if (dma->map & (1 << i))
					len += scnprintf(buf + len,
							 sizeof(buf) - len,
							 " %d", i);
		}
		len += scnprintf(buf + len, sizeof(buf) - len, " (bitmask %#x) "
				 "flags %#x", dma->map, dma->flags);
		break;
	}
	pnp_dbg(&dev->dev, "%s\n", buf);
}