diff options
Diffstat (limited to 'drivers/acpi/fan.h')
| -rw-r--r-- | drivers/acpi/fan.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/acpi/fan.h b/drivers/acpi/fan.h new file mode 100644 index 0000000000..e7b4b4e4a5 --- /dev/null +++ b/drivers/acpi/fan.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* + * ACPI fan device IDs are shared between the fan driver and the device power + * management code. + * + * Add new device IDs before the generic ACPI fan one. + */ + +#ifndef _ACPI_FAN_H_ +#define _ACPI_FAN_H_ + +#define ACPI_FAN_DEVICE_IDS \ + {"INT3404", }, /* Fan */ \ + {"INTC1044", }, /* Fan for Tiger Lake generation */ \ + {"INTC1048", }, /* Fan for Alder Lake generation */ \ + {"INTC1063", }, /* Fan for Meteor Lake generation */ \ + {"INTC10A2", }, /* Fan for Raptor Lake generation */ \ + {"PNP0C0B", } /* Generic ACPI fan */ + +#define ACPI_FPS_NAME_LEN 20 + +struct acpi_fan_fps { + u64 control; + u64 trip_point; + u64 speed; + u64 noise_level; + u64 power; + char name[ACPI_FPS_NAME_LEN]; + struct device_attribute dev_attr; +}; + +struct acpi_fan_fif { + u8 revision; + u8 fine_grain_ctrl; + u8 step_size; + u8 low_speed_notification; +}; + +struct acpi_fan_fst { + u64 revision; + u64 control; + u64 speed; +}; + +struct acpi_fan { + bool acpi4; + struct acpi_fan_fif fif; + struct acpi_fan_fps *fps; + int fps_count; + struct thermal_cooling_device *cdev; + struct device_attribute fst_speed; + struct device_attribute fine_grain_control; +}; + +int acpi_fan_get_fst(struct acpi_device *device, struct acpi_fan_fst *fst); +int acpi_fan_create_attributes(struct acpi_device *device); +void acpi_fan_delete_attributes(struct acpi_device *device); +#endif |