1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 3 /* 4 * ACPI fan device IDs are shared between the fan driver and the device power 5 * management code. 6 * 7 * Add new device IDs before the generic ACPI fan one. 8 */ 9 10 #ifndef _ACPI_FAN_H_ 11 #define _ACPI_FAN_H_ 12 13 #include <linux/kconfig.h> 14 15 #define ACPI_FAN_DEVICE_IDS \ 16 {"INT3404", }, /* Fan */ \ 17 {"INTC1044", }, /* Fan for Tiger Lake generation */ \ 18 {"INTC1048", }, /* Fan for Alder Lake generation */ \ 19 {"INTC1063", }, /* Fan for Meteor Lake generation */ \ 20 {"INTC106A", }, /* Fan for Lunar Lake generation */ \ 21 {"INTC10A2", }, /* Fan for Raptor Lake generation */ \ 22 {"PNP0C0B", } /* Generic ACPI fan */ 23 24 #define ACPI_FPS_NAME_LEN 20 25 26 struct acpi_fan_fps { 27 u64 control; 28 u64 trip_point; 29 u64 speed; 30 u64 noise_level; 31 u64 power; 32 char name[ACPI_FPS_NAME_LEN]; 33 struct device_attribute dev_attr; 34 }; 35 36 struct acpi_fan_fif { 37 u8 revision; 38 u8 fine_grain_ctrl; 39 u8 step_size; 40 u8 low_speed_notification; 41 }; 42 43 struct acpi_fan_fst { 44 u64 revision; 45 u64 control; 46 u64 speed; 47 }; 48 49 struct acpi_fan { 50 bool acpi4; 51 struct acpi_fan_fif fif; 52 struct acpi_fan_fps *fps; 53 int fps_count; 54 struct thermal_cooling_device *cdev; 55 struct device_attribute fst_speed; 56 struct device_attribute fine_grain_control; 57 }; 58 59 int acpi_fan_get_fst(struct acpi_device *device, struct acpi_fan_fst *fst); 60 int acpi_fan_create_attributes(struct acpi_device *device); 61 void acpi_fan_delete_attributes(struct acpi_device *device); 62 63 #if IS_REACHABLE(CONFIG_HWMON) 64 int devm_acpi_fan_create_hwmon(struct acpi_device *device); 65 #else 66 static inline int devm_acpi_fan_create_hwmon(struct acpi_device *device) { return 0; }; 67 #endif 68 69 #endif 70