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
devm_acpi_fan_create_hwmon(struct acpi_device * device)66 static inline int devm_acpi_fan_create_hwmon(struct acpi_device *device) { return 0; };
67 #endif
68
69 #endif
70