int
isa_release_resource(device_t bus, device_t child, int type, int rid,
struct resource *res)
{
return (bus_generic_rl_release_resource(bus, child, type, rid, res));
}
static int
atkbdc_isa_release_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
atkbdc_softc_t *sc;
sc = *(atkbdc_softc_t **)device_get_softc(dev);
if (type == SYS_RES_IRQ && rid == KBDC_RID_KBD && r == sc->irq)
return (0);
return (bus_generic_rl_release_resource(dev, child, type, rid, r));
}
static int
xlp_pci_release_resource(device_t bus, device_t child, int type, int rid,
struct resource *r)
{
u_long start;
/* If custom alloc, handle that */
start = rman_get_start(r);
if (type == SYS_RES_MEMORY && pci_get_bus(child) == 0 &&
start >= EMUL_MEM_START && start <= EMUL_MEM_END)
return (BUS_RELEASE_RESOURCE(device_get_parent(bus), child,
type, rid, r));
/* use default PCI function */
return (bus_generic_rl_release_resource(bus, child, type, rid, r));
}
static int
chipc_release_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;
struct resource_list_entry *rle;
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_rl_release_resource(dev, child, type, rid,
r));
}
/* Locate the mapping region */
cr = chipc_find_region(sc, rman_get_start(r), rman_get_end(r));
if (cr == NULL)
return (EINVAL);
/* Deactivate resources */
if (rman_get_flags(r) & RF_ACTIVE) {
error = BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, r);
if (error)
return (error);
}
if ((error = rman_release_resource(r)))
return (error);
/* Drop allocation reference */
chipc_release_region(sc, cr, RF_ALLOCATED);
/* Clear reference from the resource list entry if exists */
rle = resource_list_find(BUS_GET_RESOURCE_LIST(dev, child), type, rid);
if (rle != NULL)
rle->res = NULL;
return (0);
}
