include/uapi/linux/wmi.h

   1 /*
   2  *  User API methods for ACPI-WMI mapping driver
   3  *
   4  *  Copyright (C) 2017 Dell, Inc.
   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 #ifndef _UAPI_LINUX_WMI_H
  11 #define _UAPI_LINUX_WMI_H
  12
  13 #include <linux/ioctl.h>
  14 #include <linux/types.h>
  15
  16 /* WMI bus will filter all WMI vendor driver requests through this IOC */
  17 #define WMI_IOC 'W'
  18
  19 /* All ioctl requests through WMI should declare their size followed by
  20  * relevant data objects
  21  */
  22 struct wmi_ioctl_buffer {
  23         __u64   length;
  24         __u8    data[];
  25 };
  26
  27 /* This structure may be modified by the firmware when we enter
  28  * system management mode through SMM, hence the volatiles
  29  */
  30 struct calling_interface_buffer {
  31         __u16 cmd_class;
  32         __u16 cmd_select;
  33         volatile __u32 input[4];
  34         volatile __u32 output[4];
  35 } __packed;
  36
  37 struct dell_wmi_extensions {
  38         __u32 argattrib;
  39         __u32 blength;
  40         __u8 data[];
  41 } __packed;
  42
  43 struct dell_wmi_smbios_buffer {
  44         __u64 length;
  45         struct calling_interface_buffer std;
  46         struct dell_wmi_extensions      ext;
  47 } __packed;
  48
  49 /* Whitelisted smbios class/select commands */
  50 #define CLASS_TOKEN_READ        0
  51 #define CLASS_TOKEN_WRITE       1
  52 #define SELECT_TOKEN_STD        0
  53 #define SELECT_TOKEN_BAT        1
  54 #define SELECT_TOKEN_AC         2
  55 #define CLASS_FLASH_INTERFACE   7
  56 #define SELECT_FLASH_INTERFACE  3
  57 #define CLASS_ADMIN_PROP        10
  58 #define SELECT_ADMIN_PROP       3
  59 #define CLASS_INFO              17
  60 #define SELECT_RFKILL           11
  61 #define SELECT_APP_REGISTRATION 3
  62 #define SELECT_DOCK             22
  63
  64 /* whitelisted tokens */
  65 #define CAPSULE_EN_TOKEN        0x0461
  66 #define CAPSULE_DIS_TOKEN       0x0462
  67 #define WSMT_EN_TOKEN           0x04EC
  68 #define WSMT_DIS_TOKEN          0x04ED
  69
  70 /* Dell SMBIOS calling IOCTL command used by dell-smbios-wmi */
  71 #define DELL_WMI_SMBIOS_CMD     _IOWR(WMI_IOC, 0, struct dell_wmi_smbios_buffer)
  72
  73 #endif