Function smapi_attach

freebsd/i386/bios/smapi.c:204–266

}

static int
smapi_attach (device_t dev)
{
	struct smapi_softc *sc;
	int error;

	sc = device_get_softc(dev);
	error = 0;

	sc->dev = dev;
	sc->rid = 0;
	sc->res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->rid,
		 RF_ACTIVE);
	if (sc->res == NULL) {
		device_printf(dev, "Unable to allocate memory resource.\n");
		error = ENOMEM;
		goto bad;
	}
	sc->header = (struct smapi_bios_header *)rman_get_virtual(sc->res);
	sc->smapi32_entry = (u_int32_t)BIOS_PADDRTOVADDR(
					sc->header->prot32_segment +
					sc->header->prot32_offset);

        sc->cdev = make_dev(&smapi_cdevsw,
			device_get_unit(sc->dev),
			UID_ROOT, GID_WHEEL, 0600,
			"%s%d",
			smapi_cdevsw.d_name,
			device_get_unit(sc->dev));

	device_printf(dev, "Version: %d.%02d, Length: %d, Checksum: 0x%02x\n",
		bcd2bin(sc->header->version_major),
		bcd2bin(sc->header->version_minor),
		sc->header->length,
		sc->header->checksum);
	device_printf(dev, "Information=0x%b\n",
		sc->header->information,
		"\020"
		"\001REAL_VM86"
		"\002PROTECTED_16"
		"\003PROTECTED_32");

	if (bootverbose) {
		if (sc->header->information & SMAPI_REAL_VM86)
			device_printf(dev, "Real/VM86 mode: Segment 0x%04x, Offset 0x%04x\n",
				sc->header->real16_segment,
				sc->header->real16_offset);
		if (sc->header->information & SMAPI_PROT_16BIT)
			device_printf(dev, "16-bit Protected mode: Segment 0x%08x, Offset 0x%04x\n",
				sc->header->prot16_segment,
				sc->header->prot16_offset);
		if (sc->header->information & SMAPI_PROT_32BIT)
			device_printf(dev, "32-bit Protected mode: Segment 0x%08x, Offset 0x%08x\n",
				sc->header->prot32_segment,
				sc->header->prot32_offset);
	}

	return (0);