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 {"INTC10D6", }, /* Fan for Panther Lake generation */ \
23 {"PNP0C0B", } /* Generic ACPI fan */
24
25 #define ACPI_FPS_NAME_LEN 20
26
27 struct acpi_fan_fps {
28 u64 control;
29 u64 trip_point;
30 u64 speed;
31 u64 noise_level;
32 u64 power;
33 char name[ACPI_FPS_NAME_LEN];
34 struct device_attribute dev_attr;
35 };
36
37 struct acpi_fan_fif {
38 u8 revision;
39 u8 fine_grain_ctrl;
40 u8 step_size;
41 u8 low_speed_notification;
42 };
43
44 struct acpi_fan_fst {
45 u64 revision;
46 u64 control;
47 u64 speed;
48 };
49
50 struct acpi_fan {
51 bool acpi4;
52 struct acpi_fan_fif fif;
53 struct acpi_fan_fps *fps;
54 int fps_count;
55 struct thermal_cooling_device *cdev;
56 struct device_attribute fst_speed;
57 struct device_attribute fine_grain_control;
58 };
59
60 int acpi_fan_get_fst(struct acpi_device *device, struct acpi_fan_fst *fst);
61 int acpi_fan_create_attributes(struct acpi_device *device);
62 void acpi_fan_delete_attributes(struct acpi_device *device);
63
64 #if IS_REACHABLE(CONFIG_HWMON)
65 int devm_acpi_fan_create_hwmon(struct acpi_device *device);
66 #else
devm_acpi_fan_create_hwmon(struct acpi_device * device)67 static inline int devm_acpi_fan_create_hwmon(struct acpi_device *device) { return 0; };
68 #endif
69
70 #endif
71