projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 844af950 AL |
1 | /* |
| 2 | * wmi.h - ACPI WMI interface | |
| 3 | * | |
| 4 | * Copyright (c) 2015 Andrew Lutomirski | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | * | |
| 10 | * This program is distributed in the hope that it will be useful, but | |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * General Public License for more details. | |
| 14 | */ | |
| 15 | ||
| 16 | #ifndef _LINUX_WMI_H | |
| 17 | #define _LINUX_WMI_H | |
| 18 | ||
| 19 | #include <linux/device.h> | |
| 20 | #include <linux/acpi.h> | |
| eacc95ea | 21 | #include <linux/mod_devicetable.h> |
| 44b6b766 | 22 | #include <uapi/linux/wmi.h> |
| 844af950 AL |
23 | |
| 24 | struct wmi_device { | |
| 25 | struct device dev; | |
| d4fc91ad | 26 | |
| fd70da6a DHV |
27 | /* True for data blocks implementing the Set Control Method */ |
| 28 | bool setable; | |
| 844af950 AL |
29 | }; |
| 30 | ||
| 722c856d ML |
31 | /* evaluate the ACPI method associated with this device */ |
| 32 | extern acpi_status wmidev_evaluate_method(struct wmi_device *wdev, | |
| 33 | u8 instance, u32 method_id, | |
| 34 | const struct acpi_buffer *in, | |
| 35 | struct acpi_buffer *out); | |
| 36 | ||
| 56a37025 AL |
37 | /* Caller must kfree the result. */ |
| 38 | extern union acpi_object *wmidev_block_query(struct wmi_device *wdev, | |
| 39 | u8 instance); | |
| 40 | ||
| 44b6b766 ML |
41 | extern int set_required_buffer_size(struct wmi_device *wdev, u64 length); |
| 42 | ||
| 844af950 AL |
43 | struct wmi_driver { |
| 44 | struct device_driver driver; | |
| 45 | const struct wmi_device_id *id_table; | |
| 46 | ||
| 47 | int (*probe)(struct wmi_device *wdev); | |
| 48 | int (*remove)(struct wmi_device *wdev); | |
| 1686f544 | 49 | void (*notify)(struct wmi_device *device, union acpi_object *data); |
| 44b6b766 ML |
50 | long (*filter_callback)(struct wmi_device *wdev, unsigned int cmd, |
| 51 | struct wmi_ioctl_buffer *arg); | |
| 844af950 AL |
52 | }; |
| 53 | ||
| 54 | extern int __must_check __wmi_driver_register(struct wmi_driver *driver, | |
| 55 | struct module *owner); | |
| 56 | extern void wmi_driver_unregister(struct wmi_driver *driver); | |
| 57 | #define wmi_driver_register(driver) __wmi_driver_register((driver), THIS_MODULE) | |
| 58 | ||
| 59 | #define module_wmi_driver(__wmi_driver) \ | |
| 60 | module_driver(__wmi_driver, wmi_driver_register, \ | |
| 61 | wmi_driver_unregister) | |
| 62 | ||
| 63 | #endif |