C++ (Cpp) FDT_MAP_IRQ示例

示例#1

文件： intr.c 项目： FreeBSDFoundation/freebsd

int
intr_fdt_map_irq(phandle_t iparent, pcell_t *intr, int icells)
{
	fdt_pic_decode_t intr_decode;
	phandle_t intr_parent;
	int i, rv, interrupt, trig, pol;

	intr_parent = OF_node_from_xref(iparent);
	for (i = 0; i < icells; i++)
		intr[i] = cpu_to_fdt32(intr[i]);

	for (i = 0; fdt_pic_table[i] != NULL; i++) {
		intr_decode = fdt_pic_table[i];
		rv = intr_decode(intr_parent, intr, &interrupt, &trig, &pol);

		if (rv == 0) {
			/* This was recognized as our PIC and decoded. */
			interrupt = FDT_MAP_IRQ(intr_parent, interrupt);
			return (interrupt);
		}
	}

	/* Not in table, so guess */
	interrupt = FDT_MAP_IRQ(intr_parent, fdt32_to_cpu(intr[0]));

	return (interrupt);
}

示例#2

文件： nexus.c 项目： ChristosKa/freebsd

static int
nexus_ofw_map_intr(device_t dev, device_t child, phandle_t iparent, int icells,
    pcell_t *intr)
{
	fdt_pic_decode_t intr_decode;
	phandle_t intr_offset;
	int i, rv, interrupt, trig, pol;

	intr_offset = OF_xref_phandle(iparent);
	for (i = 0; i < icells; i++)
		intr[i] = cpu_to_fdt32(intr[i]);

	for (i = 0; fdt_pic_table[i] != NULL; i++) {
		intr_decode = fdt_pic_table[i];
		rv = intr_decode(intr_offset, intr, &interrupt, &trig, &pol);

		if (rv == 0) {
			/* This was recognized as our PIC and decoded. */
			interrupt = FDT_MAP_IRQ(intr_parent, interrupt);
			return (interrupt);
		}
	}

	/* Not in table, so guess */
	interrupt = FDT_MAP_IRQ(intr_parent, fdt32_to_cpu(intr[0]));

	return (interrupt);
}