C++ (Cpp) bus_generic_deactivate_resource示例

示例#1

文件： chipc.c 项目： wulf7/freebsd

/**
 * Default bhndb(4) implementation of BUS_DEACTIVATE_RESOURCE().
 */
static int
chipc_deactivate_resource(device_t dev, device_t child, int type,
    int rid, struct resource *r)
{
	struct chipc_softc	*sc;
	struct chipc_region	*cr;
	struct rman		*rm;
	int			 error;

	sc = device_get_softc(dev);

	/* Handled by parent bus? */
	rm = chipc_get_rman(sc, type);
	if (rm == NULL || !rman_is_region_manager(r, rm)) {
		return (bus_generic_deactivate_resource(dev, child, type, rid,
		    r));
	}

	/* Find the corresponding chipc region */
	cr = chipc_find_region(sc, rman_get_start(r), rman_get_end(r));
	if (cr == NULL)
		return (EINVAL);

	/* Mark inactive */
	if ((error = rman_deactivate_resource(r)))
		return (error);

	/* Drop associated RF_ACTIVE reference */
	chipc_release_region(sc, cr, RF_ACTIVE);

	return (0);
}

示例#2

文件： sb_zbpci.c 项目： 2asoft/freebsd

static int
zbpci_deactivate_resource(device_t bus, device_t child, int type, int rid,
			  struct resource *r)
{
	vm_offset_t va;

	if (type != SYS_RES_IOPORT) {
		return (bus_generic_deactivate_resource(bus, child, type,
							rid, r));
	}
	
	va = (vm_offset_t)rman_get_virtual(r);
	pmap_unmapdev(va, rman_get_size(r));

	return (rman_deactivate_resource(r));
}