/*
* acpitz_attach: autoconf(9) attach routine
*/
static void
acpitz_attach(device_t parent, device_t self, void *aux)
{
struct acpitz_softc *sc = device_private(self);
struct acpi_attach_args *aa = aux;
ACPI_INTEGER val;
ACPI_STATUS rv;
sc->sc_first = true;
sc->sc_have_fan = false;
sc->sc_node = aa->aa_node;
sc->sc_zone.tzp = ATZ_TZP_RATE;
aprint_naive("\n");
acpitz_print_processor_list(self);
aprint_normal("\n");
/*
* The _TZP (ACPI 4.0, p. 430) defines the recommended
* polling interval (in tenths of seconds). A value zero
* means that polling "should not be necessary".
*/
rv = acpi_eval_integer(sc->sc_node->ad_handle, "_TZP", &val);
if (ACPI_SUCCESS(rv) && val != 0)
sc->sc_zone.tzp = val;
aprint_debug_dev(self, "polling interval %d.%d seconds\n",
sc->sc_zone.tzp / 10, sc->sc_zone.tzp % 10);
sc->sc_zone_expire = ATZ_ZONE_EXPIRE / sc->sc_zone.tzp;
/*
* XXX: The fan controls seen here are available on
* some HP laptops. Arguably these should not
* appear in a generic device driver like this.
*/
if (acpitz_get_fanspeed(self, &sc->sc_zone.fanmin,
&sc->sc_zone.fanmax, &sc->sc_zone.fancurrent) == 0)
sc->sc_have_fan = true;
acpitz_get_zone(self, 1);
acpitz_get_status(self);
(void)pmf_device_register(self, NULL, NULL);
(void)acpi_power_register(sc->sc_node->ad_handle);
(void)acpi_register_notify(sc->sc_node, acpitz_notify_handler);
callout_init(&sc->sc_callout, CALLOUT_MPSAFE);
callout_setfunc(&sc->sc_callout, acpitz_tick, self);
acpitz_init_envsys(self);
callout_schedule(&sc->sc_callout, sc->sc_zone.tzp * hz / 10);
}
/*
* acpitz_attach: autoconf(9) attach routine
*/
void
acpitz_attach(struct device *parent, struct device *self, void *aux)
{
struct acpitz_softc *sc = (struct acpitz_softc *)self;
struct acpi_attach_args *aa = aux;
ACPI_STATUS rv;
ACPI_INTEGER v;
#if 0
sc->sc_flags = ATZ_F_VERBOSE;
#endif
sc->sc_devnode = aa->aa_node;
printf(": ACPI Thermal Zone\n");
rv = acpi_eval_integer(sc->sc_devnode->ad_handle, "_TZP", &v);
if (ACPI_FAILURE(rv)) {
printf("%s: unable to get polling interval; using default of",
sc->sc_dev.dv_xname);
sc->sc_zone.tzp = ATZ_TZP_RATE;
} else {
sc->sc_zone.tzp = v;
printf("%s: polling interval is", sc->sc_dev.dv_xname);
}
printf(" %d.%ds\n", sc->sc_zone.tzp / 10, sc->sc_zone.tsp % 10);
/* XXX a value of 0 means "polling is not necessary" */
if (sc->sc_zone.tzp == 0)
sc->sc_zone.tzp = ATZ_TZP_RATE;
acpitz_get_status(sc);
rv = AcpiInstallNotifyHandler(sc->sc_devnode->ad_handle,
ACPI_SYSTEM_NOTIFY, acpitz_notify_handler, sc);
if (ACPI_FAILURE(rv)) {
printf("%s: unable to install SYSTEM NOTIFY handler: %s\n",
sc->sc_dev.dv_xname, AcpiFormatException(rv));
return;
}
callout_init(&sc->sc_callout);
callout_reset(&sc->sc_callout, (sc->sc_zone.tzp / 10) * hz,
acpitz_tick, sc);
acpitz_init_envsys(sc);
}
