int
nouveau_therm_fan_ctor(struct nouveau_therm *therm)
{
struct nouveau_therm_priv *priv = (void *)therm;
struct nouveau_gpio *gpio = nouveau_gpio(therm);
struct nouveau_bios *bios = nouveau_bios(therm);
struct dcb_gpio_func func;
int ret;
/* attempt to locate a drivable fan, and determine control method */
ret = gpio->find(gpio, 0, DCB_GPIO_FAN, 0xff, &func);
if (ret == 0) {
/* FIXME: is this really the place to perform such checks ? */
if (func.line != 16 && func.log[0] & DCB_GPIO_LOG_DIR_IN) {
nv_debug(therm, "GPIO_FAN is in input mode\n");
ret = -EINVAL;
} else {
ret = nouveau_fanpwm_create(therm, &func);
if (ret != 0)
ret = nouveau_fantog_create(therm, &func);
}
}
/* no controllable fan found, create a dummy fan module */
if (ret != 0) {
ret = nouveau_fannil_create(therm);
if (ret)
return ret;
}
nv_info(therm, "FAN control: %s\n", priv->fan->type);
/* read the current speed, it is useful when resuming */
priv->fan->percent = nouveau_therm_fan_get(therm);
/* attempt to detect a tachometer connection */
ret = gpio->find(gpio, 0, DCB_GPIO_FAN_SENSE, 0xff, &priv->fan->tach);
if (ret)
priv->fan->tach.func = DCB_GPIO_UNUSED;
/* initialise fan bump/slow update handling */
priv->fan->parent = therm;
nouveau_alarm_init(&priv->fan->alarm, nouveau_fan_alarm);
spin_lock_init(&priv->fan->lock);
/* other random init... */
nouveau_therm_fan_set_defaults(therm);
nvbios_perf_fan_parse(bios, &priv->fan->perf);
if (!nvbios_fan_parse(bios, &priv->fan->bios)) {
nv_debug(therm, "parsing the fan table failed\n");
if (nvbios_therm_fan_parse(bios, &priv->fan->bios))
nv_error(therm, "parsing both fan tables failed\n");
}
nouveau_therm_fan_safety_checks(therm);
return 0;
}
int
nouveau_therm_fan_ctor(struct nouveau_therm *therm)
{
struct nouveau_therm_priv *priv = (void *)therm;
struct nouveau_bios *bios = nouveau_bios(therm);
nouveau_therm_fan_set_defaults(therm);
nvbios_perf_fan_parse(bios, &priv->bios_perf_fan);
if (nvbios_therm_fan_parse(bios, &priv->bios_fan))
nv_error(therm, "parsing the thermal table failed\n");
nouveau_therm_fan_safety_checks(therm);
nouveau_therm_fan_set_mode(therm, FAN_CONTROL_NONE);
return 0;
}