Ejemplo n.º 1
0
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;
}
Ejemplo n.º 2
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;
}