109 static int update_avg_interval(struct acpi_power_meter_resource *resource)  in update_avg_interval()  argument
114 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_GAI",  in update_avg_interval()
117 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_GAI",  in update_avg_interval()
122 	resource->avg_interval = data;  in update_avg_interval()
131 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in show_avg_interval()  local
133 	mutex_lock(&resource->lock);  in show_avg_interval()
134 	update_avg_interval(resource);  in show_avg_interval()
135 	mutex_unlock(&resource->lock);  in show_avg_interval()
137 	return sprintf(buf, "%llu\n", resource->avg_interval);  in show_avg_interval()
145 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in set_avg_interval()  local
157 	if (temp > resource->caps.max_avg_interval ||  in set_avg_interval()
158 	    temp < resource->caps.min_avg_interval)  in set_avg_interval()
162 	mutex_lock(&resource->lock);  in set_avg_interval()
163 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PAI",  in set_avg_interval()
166 		resource->avg_interval = temp;  in set_avg_interval()
167 	mutex_unlock(&resource->lock);  in set_avg_interval()
170 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PAI",  in set_avg_interval()
183 static int update_cap(struct acpi_power_meter_resource *resource)  in update_cap()  argument
188 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_GHL",  in update_cap()
191 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_GHL",  in update_cap()
196 	resource->cap = data;  in update_cap()
205 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in show_cap()  local
207 	mutex_lock(&resource->lock);  in show_cap()
208 	update_cap(resource);  in show_cap()
209 	mutex_unlock(&resource->lock);  in show_cap()
211 	return sprintf(buf, "%llu\n", resource->cap * 1000);  in show_cap()
218 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in set_cap()  local
231 	if (temp > resource->caps.max_cap || temp < resource->caps.min_cap)  in set_cap()
235 	mutex_lock(&resource->lock);  in set_cap()
236 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_SHL",  in set_cap()
239 		resource->cap = temp;  in set_cap()
240 	mutex_unlock(&resource->lock);  in set_cap()
243 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_SHL",  in set_cap()
256 static int set_acpi_trip(struct acpi_power_meter_resource *resource)  in set_acpi_trip()  argument
267 	if (resource->trip[0] < 0 || resource->trip[1] < 0)  in set_acpi_trip()
271 	arg_objs[0].integer.value = resource->trip[1];  in set_acpi_trip()
272 	arg_objs[1].integer.value = resource->trip[0];  in set_acpi_trip()
274 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PTP",  in set_acpi_trip()
277 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PTP",  in set_acpi_trip()
294 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in set_trip()  local
304 	mutex_lock(&resource->lock);  in set_trip()
305 	resource->trip[attr->index - 7] = temp;  in set_trip()
306 	res = set_acpi_trip(resource);  in set_trip()
307 	mutex_unlock(&resource->lock);  in set_trip()
316 static int update_meter(struct acpi_power_meter_resource *resource)  in update_meter()  argument
322 	if (time_before(local_jiffies, resource->sensors_last_updated +  in update_meter()
323 			msecs_to_jiffies(resource->caps.sampling_time)) &&  in update_meter()
324 			resource->sensors_valid)  in update_meter()
327 	status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PMM",  in update_meter()
330 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PMM",  in update_meter()
335 	resource->power = data;  in update_meter()
336 	resource->sensors_valid = 1;  in update_meter()
337 	resource->sensors_last_updated = jiffies;  in update_meter()
346 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in show_power()  local
348 	mutex_lock(&resource->lock);  in show_power()
349 	update_meter(resource);  in show_power()
350 	mutex_unlock(&resource->lock);  in show_power()
352 	if (resource->power == UNKNOWN_POWER)  in show_power()
355 	return sprintf(buf, "%llu\n", resource->power * 1000);  in show_power()
365 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in show_str()  local
369 	mutex_lock(&resource->lock);  in show_str()
372 		val = resource->model_number;  in show_str()
375 		val = resource->serial_number;  in show_str()
378 		val = resource->oem_info;  in show_str()
387 	mutex_unlock(&resource->lock);  in show_str()
397 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in show_val()  local
402 		val = resource->caps.min_avg_interval;  in show_val()
405 		val = resource->caps.max_avg_interval;  in show_val()
408 		val = resource->caps.min_cap * 1000;  in show_val()
411 		val = resource->caps.max_cap * 1000;  in show_val()
414 		if (resource->caps.hysteresis == UNKNOWN_HYSTERESIS)  in show_val()
417 		val = resource->caps.hysteresis * 1000;  in show_val()
420 		if (resource->caps.flags & POWER_METER_IS_BATTERY)  in show_val()
426 		if (resource->power > resource->cap)  in show_val()
433 		if (resource->trip[attr->index - 7] < 0)  in show_val()
436 		val = resource->trip[attr->index - 7] * 1000;  in show_val()
452 	struct acpi_power_meter_resource *resource = acpi_dev->driver_data;  in show_accuracy()  local
453 	unsigned int acc = resource->caps.accuracy;  in show_accuracy()
528 static void remove_domain_devices(struct acpi_power_meter_resource *resource)  in remove_domain_devices()  argument
532 	if (!resource->num_domain_devices)  in remove_domain_devices()
535 	for (i = 0; i < resource->num_domain_devices; i++) {  in remove_domain_devices()
536 		struct acpi_device *obj = resource->domain_devices[i];  in remove_domain_devices()
541 		sysfs_remove_link(resource->holders_dir,  in remove_domain_devices()
546 	kfree(resource->domain_devices);  in remove_domain_devices()
547 	kobject_put(resource->holders_dir);  in remove_domain_devices()
548 	resource->num_domain_devices = 0;  in remove_domain_devices()
551 static int read_domain_devices(struct acpi_power_meter_resource *resource)  in read_domain_devices()  argument
559 	status = acpi_evaluate_object(resource->acpi_dev->handle, "_PMD", NULL,  in read_domain_devices()
562 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PMD",  in read_domain_devices()
570 		dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME  in read_domain_devices()
579 	resource->domain_devices = kcalloc(pss->package.count,  in read_domain_devices()
582 	if (!resource->domain_devices) {  in read_domain_devices()
587 	resource->holders_dir = kobject_create_and_add("measures",  in read_domain_devices()
588 						       &resource->acpi_dev->dev.kobj);  in read_domain_devices()
589 	if (!resource->holders_dir) {  in read_domain_devices()
594 	resource->num_domain_devices = pss->package.count;  in read_domain_devices()
606 		resource->domain_devices[i] = obj;  in read_domain_devices()
610 		res = sysfs_create_link(resource->holders_dir, &obj->dev.kobj,  in read_domain_devices()
614 			resource->domain_devices[i] = NULL;  in read_domain_devices()
622 	kfree(resource->domain_devices);  in read_domain_devices()
629 static int register_attrs(struct acpi_power_meter_resource *resource,  in register_attrs()  argument
632 	struct device *dev = &resource->acpi_dev->dev;  in register_attrs()
634 		&resource->sensors[resource->num_sensors];  in register_attrs()
655 		resource->num_sensors++;  in register_attrs()
663 static void remove_attrs(struct acpi_power_meter_resource *resource)  in remove_attrs()  argument
667 	for (i = 0; i < resource->num_sensors; i++) {  in remove_attrs()
668 		if (!resource->sensors[i].dev_attr.attr.name)  in remove_attrs()
670 		device_remove_file(&resource->acpi_dev->dev,  in remove_attrs()
671 				   &resource->sensors[i].dev_attr);  in remove_attrs()
674 	remove_domain_devices(resource);  in remove_attrs()
676 	resource->num_sensors = 0;  in remove_attrs()
679 static int setup_attrs(struct acpi_power_meter_resource *resource)  in setup_attrs()  argument
683 	res = read_domain_devices(resource);  in setup_attrs()
687 	if (resource->caps.flags & POWER_METER_CAN_MEASURE) {  in setup_attrs()
688 		res = register_attrs(resource, meter_attrs);  in setup_attrs()
693 	if (resource->caps.flags & POWER_METER_CAN_CAP) {  in setup_attrs()
695 			dev_warn(&resource->acpi_dev->dev,  in setup_attrs()
700 		if (resource->caps.configurable_cap)  in setup_attrs()
701 			res = register_attrs(resource, rw_cap_attrs);  in setup_attrs()
703 			res = register_attrs(resource, ro_cap_attrs);  in setup_attrs()
708 		res = register_attrs(resource, misc_cap_attrs);  in setup_attrs()
714 	if (resource->caps.flags & POWER_METER_CAN_TRIP) {  in setup_attrs()
715 		res = register_attrs(resource, trip_attrs);  in setup_attrs()
720 	res = register_attrs(resource, misc_attrs);  in setup_attrs()
726 	remove_attrs(resource);  in setup_attrs()
730 static void free_capabilities(struct acpi_power_meter_resource *resource)  in free_capabilities()  argument
735 	str = &resource->model_number;  in free_capabilities()
742 static int read_capabilities(struct acpi_power_meter_resource *resource)  in read_capabilities()  argument
753 	status = acpi_evaluate_object(resource->acpi_dev->handle, "_PMC", NULL,  in read_capabilities()
756 		acpi_evaluation_failure_warn(resource->acpi_dev->handle, "_PMC",  in read_capabilities()
765 		dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME  in read_capabilities()
773 	state.pointer = &resource->caps;  in read_capabilities()
777 		dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME  in read_capabilities()
784 	if (resource->caps.units) {  in read_capabilities()
785 		dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME  in read_capabilities()
787 			resource->caps.units);  in read_capabilities()
793 	str = &resource->model_number;  in read_capabilities()
813 	dev_info(&resource->acpi_dev->dev, "Found ACPI power meter.\n");  in read_capabilities()
816 	free_capabilities(resource);  in read_capabilities()
825 	struct acpi_power_meter_resource *resource;  in acpi_power_meter_notify()  local
831 	resource = acpi_driver_data(device);  in acpi_power_meter_notify()
835 		mutex_lock(&resource->lock);  in acpi_power_meter_notify()
836 		free_capabilities(resource);  in acpi_power_meter_notify()
837 		res = read_capabilities(resource);  in acpi_power_meter_notify()
838 		mutex_unlock(&resource->lock);  in acpi_power_meter_notify()
842 		remove_attrs(resource);  in acpi_power_meter_notify()
843 		setup_attrs(resource);  in acpi_power_meter_notify()
870 	struct acpi_power_meter_resource *resource;  in acpi_power_meter_add()  local
875 	resource = kzalloc(sizeof(*resource), GFP_KERNEL);  in acpi_power_meter_add()
876 	if (!resource)  in acpi_power_meter_add()
879 	resource->sensors_valid = 0;  in acpi_power_meter_add()
880 	resource->acpi_dev = device;  in acpi_power_meter_add()
881 	mutex_init(&resource->lock);  in acpi_power_meter_add()
884 	device->driver_data = resource;  in acpi_power_meter_add()
902 	res = read_capabilities(resource);  in acpi_power_meter_add()
906 	resource->trip[0] = -1;  in acpi_power_meter_add()
907 	resource->trip[1] = -1;  in acpi_power_meter_add()
909 	res = setup_attrs(resource);  in acpi_power_meter_add()
913 	resource->hwmon_dev = hwmon_device_register(&device->dev);  in acpi_power_meter_add()
914 	if (IS_ERR(resource->hwmon_dev)) {  in acpi_power_meter_add()
915 		res = PTR_ERR(resource->hwmon_dev);  in acpi_power_meter_add()
923 	remove_attrs(resource);  in acpi_power_meter_add()
925 	free_capabilities(resource);  in acpi_power_meter_add()
927 	kfree(resource);  in acpi_power_meter_add()
934 	struct acpi_power_meter_resource *resource;  in acpi_power_meter_remove()  local
939 	resource = acpi_driver_data(device);  in acpi_power_meter_remove()
940 	hwmon_device_unregister(resource->hwmon_dev);  in acpi_power_meter_remove()
942 	remove_attrs(resource);  in acpi_power_meter_remove()
943 	free_capabilities(resource);  in acpi_power_meter_remove()
945 	kfree(resource);  in acpi_power_meter_remove()
950 	struct acpi_power_meter_resource *resource;  in acpi_power_meter_resume()  local
955 	resource = acpi_driver_data(to_acpi_device(dev));  in acpi_power_meter_resume()
956 	if (!resource)  in acpi_power_meter_resume()
959 	free_capabilities(resource);  in acpi_power_meter_resume()
960 	read_capabilities(resource);  in acpi_power_meter_resume()