[mirror_ubuntu-jammy-kernel.git] / include / linux / wmi.h

/* 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;

	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
Commit	Line	Data
1802d0be	1	/* SPDX-License-Identifier: GPL-2.0-only */
844af950 AL	2	/*
	3	* wmi.h - ACPI WMI interface
	4	*
	5	* Copyright (c) 2015 Andrew Lutomirski
844af950 AL	6	*/
	7
	8	#ifndef _LINUX_WMI_H
	9	#define _LINUX_WMI_H
	10
	11	#include <linux/device.h>
	12	#include <linux/acpi.h>
eacc95ea	13	#include <linux/mod_devicetable.h>
44b6b766	14	#include <uapi/linux/wmi.h>
844af950 AL	15
	16	struct wmi_device {
	17	struct device dev;
d4fc91ad	18
fd70da6a DHV	19	/* True for data blocks implementing the Set Control Method */
fd70da6a DHV	20	bool setable;
844af950 AL	21	};
844af950 AL	22
722c856d ML	23	/* evaluate the ACPI method associated with this device */
	24	extern acpi_status wmidev_evaluate_method(struct wmi_device *wdev,
	25	u8 instance, u32 method_id,
	26	const struct acpi_buffer *in,
	27	struct acpi_buffer *out);
	28
56a37025 AL	29	/* Caller must kfree the result. */
	30	extern union acpi_object wmidev_block_query(struct wmi_device wdev,
	31	u8 instance);
	32
44b6b766 ML	33	extern int set_required_buffer_size(struct wmi_device *wdev, u64 length);
44b6b766 ML	34
844af950 AL	35	struct wmi_driver {
	36	struct device_driver driver;
	37	const struct wmi_device_id *id_table;
	38
440c4983	39	int (probe)(struct wmi_device wdev, const void *context);
2b329f56	40	void (remove)(struct wmi_device wdev);
1686f544	41	void (notify)(struct wmi_device device, union acpi_object *data);
44b6b766 ML	42	long (filter_callback)(struct wmi_device wdev, unsigned int cmd,
44b6b766 ML	43	struct wmi_ioctl_buffer *arg);
844af950 AL	44	};
	45
	46	extern int __must_check __wmi_driver_register(struct wmi_driver *driver,
	47	struct module *owner);
	48	extern void wmi_driver_unregister(struct wmi_driver *driver);
	49	#define wmi_driver_register(driver) __wmi_driver_register((driver), THIS_MODULE)
	50
	51	#define module_wmi_driver(__wmi_driver) \
	52	module_driver(__wmi_driver, wmi_driver_register, \
	53	wmi_driver_unregister)
	54
	55	#endif