1 files changed, 56 insertions, 0 deletions
diff --git a/include/linux/wmi.h b/include/linux/wmi.h
new file mode 100644
index 000000000..b88d7b58e
--- /dev/null
+++ b/include/linux/wmi.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * wmi.h - ACPI WMI interface
+ *
+ * Copyright (c) 2015 Andrew Lutomirski
+ */
+
+#ifndef _LINUX_WMI_H
+#define _LINUX_WMI_H
+
+#include <linux/device.h>
+#include <linux/acpi.h>
+#include <linux/mod_devicetable.h>
+#include <uapi/linux/wmi.h>
+
+struct wmi_device {
+	struct device dev;
+
+	 /* True for data blocks implementing the Set Control Method */
+	bool setable;
+};
+
+/* evaluate the ACPI method associated with this device */
+extern acpi_status wmidev_evaluate_method(struct wmi_device *wdev,
+					  u8 instance, u32 method_id,
+					  const struct acpi_buffer *in,
+					  struct acpi_buffer *out);
+
+/* Caller must kfree the result. */
+extern union acpi_object *wmidev_block_query(struct wmi_device *wdev,
+					     u8 instance);
+
+extern int set_required_buffer_size(struct wmi_device *wdev, u64 length);
+
+struct wmi_driver {
+	struct device_driver driver;
+	const struct wmi_device_id *id_table;
+	bool no_notify_data;
+
+	int (*probe)(struct wmi_device *wdev, const void *context);
+	void (*remove)(struct wmi_device *wdev);
+	void (*notify)(struct wmi_device *device, union acpi_object *data);
+	long (*filter_callback)(struct wmi_device *wdev, unsigned int cmd,
+				struct wmi_ioctl_buffer *arg);
+};
+
+extern int __must_check __wmi_driver_register(struct wmi_driver *driver,
+					      struct module *owner);
+extern void wmi_driver_unregister(struct wmi_driver *driver);
+#define wmi_driver_register(driver) __wmi_driver_register((driver), THIS_MODULE)
+
+#define module_wmi_driver(__wmi_driver) \
+	module_driver(__wmi_driver, wmi_driver_register, \
+		      wmi_driver_unregister)
+
+#endif