1 // SPDX-License-Identifier: GPL-2.0-or-later
29 static int toshiba_haps_reset_protection(acpi_handle handle)  in toshiba_haps_reset_protection()  argument
33 	status = acpi_evaluate_object(handle, "RSSS", NULL, NULL);  in toshiba_haps_reset_protection()
36 		return -EIO;  in toshiba_haps_reset_protection()
42 static int toshiba_haps_protection_level(acpi_handle handle, int level)  in toshiba_haps_protection_level()  argument
46 	status = acpi_execute_simple_method(handle, "PTLV", level);  in toshiba_haps_protection_level()
49 		return -EIO;  in toshiba_haps_protection_level()
58 static ssize_t protection_level_show(struct device *dev,  in protection_level_show()
63 	return sprintf(buf, "%i\n", haps->protection_level);  in protection_level_show()
66 static ssize_t protection_level_store(struct device *dev,  in protection_level_store()
79 	 * 0 - Disabled | 1 - Low | 2 - Medium | 3 - High  in protection_level_store()
82 		return -EINVAL;  in protection_level_store()
85 	ret = toshiba_haps_protection_level(haps->acpi_dev->handle, level);  in protection_level_store()
89 	haps->protection_level = level;  in protection_level_store()
95 static ssize_t reset_protection_store(struct device *dev,  in reset_protection_store()
108 		return -EINVAL;  in reset_protection_store()
111 	ret = toshiba_haps_reset_protection(haps->acpi_dev->handle);  in reset_protection_store()
132 static void toshiba_haps_notify(struct acpi_device *device, u32 event)  in toshiba_haps_notify()  argument
136 	acpi_bus_generate_netlink_event(device->pnp.device_class,  in toshiba_haps_notify()
137 					dev_name(&device->dev),  in toshiba_haps_notify()
141 static void toshiba_haps_remove(struct acpi_device *device)  in toshiba_haps_remove()  argument
143 	sysfs_remove_group(&device->dev.kobj, &haps_attr_group);  in toshiba_haps_remove()
150 static int toshiba_haps_available(acpi_handle handle)  in toshiba_haps_available()  argument
156 	 * A non existent device as well as having (only)  in toshiba_haps_available()
159 	status = acpi_evaluate_integer(handle, "_STA", NULL, &hdd_present);  in toshiba_haps_available()
179 		return -EBUSY;  in toshiba_haps_add()
181 	if (!toshiba_haps_available(acpi_dev->handle))  in toshiba_haps_add()
182 		return -ENODEV;  in toshiba_haps_add()
184 	pr_info("Toshiba HDD Active Protection Sensor device\n");  in toshiba_haps_add()
188 		return -ENOMEM;  in toshiba_haps_add()
190 	haps->acpi_dev = acpi_dev;  in toshiba_haps_add()
191 	haps->protection_level = 2;  in toshiba_haps_add()
192 	acpi_dev->driver_data = haps;  in toshiba_haps_add()
193 	dev_set_drvdata(&acpi_dev->dev, haps);  in toshiba_haps_add()
196 	ret = toshiba_haps_protection_level(acpi_dev->handle, 2);  in toshiba_haps_add()
200 	ret = sysfs_create_group(&acpi_dev->dev.kobj, &haps_attr_group);  in toshiba_haps_add()
210 static int toshiba_haps_suspend(struct device *device)  in toshiba_haps_suspend()  argument
215 	haps = acpi_driver_data(to_acpi_device(device));  in toshiba_haps_suspend()
218 	ret = toshiba_haps_protection_level(haps->acpi_dev->handle, 0);  in toshiba_haps_suspend()
223 static int toshiba_haps_resume(struct device *device)  in toshiba_haps_resume()  argument
228 	haps = acpi_driver_data(to_acpi_device(device));  in toshiba_haps_resume()
231 	ret = toshiba_haps_protection_level(haps->acpi_dev->handle,  in toshiba_haps_resume()
232 					    haps->protection_level);  in toshiba_haps_resume()
235 	ret = toshiba_haps_reset_protection(haps->acpi_dev->handle);  in toshiba_haps_resume()