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 #define ACPI_FAN_DEVICE_IDS \ 14 {"INT3404", }, /* Fan */ \ 15 {"INTC1044", }, /* Fan for Tiger Lake generation */ \ 16 {"INTC1048", }, /* Fan for Alder Lake generation */ \ 17 {"INTC10A2", }, /* Fan for Raptor Lake generation */ \ 18 {"PNP0C0B", } /* Generic ACPI fan */ 19 20 #define ACPI_FPS_NAME_LEN 20 21 22 struct acpi_fan_fps { 23 u64 control; 24 u64 trip_point; 25 u64 speed; 26 u64 noise_level; 27 u64 power; 28 char name[ACPI_FPS_NAME_LEN]; 29 struct device_attribute dev_attr; 30 }; 31 32 struct acpi_fan_fif { 33 u8 revision; 34 u8 fine_grain_ctrl; 35 u8 step_size; 36 u8 low_speed_notification; 37 }; 38 39 struct acpi_fan_fst { 40 u64 revision; 41 u64 control; 42 u64 speed; 43 }; 44 45 struct acpi_fan { 46 bool acpi4; 47 struct acpi_fan_fif fif; 48 struct acpi_fan_fps *fps; 49 int fps_count; 50 struct thermal_cooling_device *cdev; 51 struct device_attribute fst_speed; 52 struct device_attribute fine_grain_control; 53 }; 54 55 int acpi_fan_get_fst(struct acpi_device *device, struct acpi_fan_fst *fst); 56 int acpi_fan_create_attributes(struct acpi_device *device); 57 void acpi_fan_delete_attributes(struct acpi_device *device); 58 #endif 59