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/* 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