diff options
Diffstat (limited to 'include/linux/wmi.h')
-rw-r--r-- | include/linux/wmi.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/linux/wmi.h b/include/linux/wmi.h new file mode 100644 index 000000000..8ef7e7fae --- /dev/null +++ b/include/linux/wmi.h @@ -0,0 +1,55 @@ +/* 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); + int (*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 |