/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */ /* * User API methods for ACPI-WMI mapping driver * * Copyright (C) 2017 Dell, Inc. */ #ifndef _LINUX_WMI_H #define _LINUX_WMI_H #include <linux/ioctl.h> #include <linux/types.h> /* WMI bus will filter all WMI vendor driver requests through this IOC */ #define WMI_IOC 'W' /* All ioctl requests through WMI should declare their size followed by * relevant data objects */ struct wmi_ioctl_buffer { __u64 length; __u8 data[]; }; /* This structure may be modified by the firmware when we enter * system management mode through SMM, hence the volatiles */ struct calling_interface_buffer { __u16 cmd_class; __u16 cmd_select; __volatile__ __u32 input[4]; __volatile__ __u32 output[4]; } __attribute__((packed)); struct dell_wmi_extensions { __u32 argattrib; __u32 blength; __u8 data[]; } __attribute__((packed)); struct dell_wmi_smbios_buffer { __u64 length; struct calling_interface_buffer std; struct dell_wmi_extensions ext; } __attribute__((packed)); /* Whitelisted smbios class/select commands */ #define CLASS_TOKEN_READ 0 #define CLASS_TOKEN_WRITE 1 #define SELECT_TOKEN_STD 0 #define SELECT_TOKEN_BAT 1 #define SELECT_TOKEN_AC 2 #define CLASS_FLASH_INTERFACE 7 #define SELECT_FLASH_INTERFACE 3 #define CLASS_ADMIN_PROP 10 #define SELECT_ADMIN_PROP 3 #define CLASS_INFO 17 #define SELECT_RFKILL 11 #define SELECT_APP_REGISTRATION 3 #define SELECT_DOCK 22 /* whitelisted tokens */ #define CAPSULE_EN_TOKEN 0x0461 #define CAPSULE_DIS_TOKEN 0x0462 #define WSMT_EN_TOKEN 0x04EC #define WSMT_DIS_TOKEN 0x04ED /* Dell SMBIOS calling IOCTL command used by dell-smbios-wmi */ #define DELL_WMI_SMBIOS_CMD _IOWR(WMI_IOC, 0, struct dell_wmi_smbios_buffer) #endif