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-rw-r--r--drivers/acpi/fan.h59
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