Function mips_pic_attach

freebsd/mips/mips/mips_pic.c:218–261

}

static int
mips_pic_attach(device_t dev)
{
	struct		mips_pic_softc *sc;
	intptr_t	xref = pic_xref(dev);

	if (pic_sc)
		return (ENXIO);

	sc = device_get_softc(dev);

	sc->pic_dev = dev;
	pic_sc = sc;

	/* Set the number of interrupts */
	sc->nirqs = nitems(sc->pic_irqs);

	/* Register the interrupts */
	if (mips_pic_register_isrcs(sc) != 0) {
		device_printf(dev, "could not register PIC ISRCs\n");
		goto cleanup;
	}

	/*
	 * Now, when everything is initialized, it's right time to
	 * register interrupt controller to interrupt framefork.
	 */
	if (intr_pic_register(dev, xref) == NULL) {
		device_printf(dev, "could not register PIC\n");
		goto cleanup;
	}

	/* Claim our root controller role */
	if (intr_pic_claim_root(dev, xref, mips_pic_intr, sc, 0) != 0) {
		device_printf(dev, "could not set PIC as a root\n");
		intr_pic_deregister(dev, xref);
		goto cleanup;
	}

	return (0);

cleanup:
	return(ENXIO);
}

int
mips_pic_intr(void *arg)