/*

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* User API methods for ACPI-WMI mapping driver

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*

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* Copyright (C) 2017 Dell, Inc.

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*

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* This program is free software; you can redistribute it and/or modify

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* it under the terms of the GNU General Public License version 2 as

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* published by the Free Software Foundation.

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*/

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#ifndef _LINUX_WMI_H

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#define _LINUX_WMI_H

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#include <linux/ioctl.h>

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#include <linux/types.h>

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/* WMI bus will filter all WMI vendor driver requests through this IOC */

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#define WMI_IOC 'W'

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/* All ioctl requests through WMI should declare their size followed by

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* relevant data objects

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*/

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struct wmi_ioctl_buffer {

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__u64 length;

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__u8 data[];

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};

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/* This structure may be modified by the firmware when we enter

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* system management mode through SMM, hence the volatiles

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*/

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struct calling_interface_buffer {

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__u16 cmd_class;

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__u16 cmd_select;

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__volatile__ __u32 input[4];

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__volatile__ __u32 output[4];

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} __attribute__((packed));

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struct dell_wmi_extensions {

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__u32 argattrib;

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__u32 blength;

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__u8 data[];

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} __attribute__((packed));

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struct dell_wmi_smbios_buffer {

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__u64 length;

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struct calling_interface_buffer std;

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struct dell_wmi_extensions ext;

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} __attribute__((packed));

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/* Whitelisted smbios class/select commands */

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#define CLASS_TOKEN_READ 0

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#define CLASS_TOKEN_WRITE 1

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#define SELECT_TOKEN_STD 0

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#define SELECT_TOKEN_BAT 1

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#define SELECT_TOKEN_AC 2

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#define CLASS_FLASH_INTERFACE 7

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#define SELECT_FLASH_INTERFACE 3

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#define CLASS_ADMIN_PROP 10

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#define SELECT_ADMIN_PROP 3

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#define CLASS_INFO 17

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#define SELECT_RFKILL 11

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#define SELECT_APP_REGISTRATION 3

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#define SELECT_DOCK 22

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/* whitelisted tokens */

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#define CAPSULE_EN_TOKEN 0x0461

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#define CAPSULE_DIS_TOKEN 0x0462

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#define WSMT_EN_TOKEN 0x04EC

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#define WSMT_DIS_TOKEN 0x04ED

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/* Dell SMBIOS calling IOCTL command used by dell-smbios-wmi */

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#define DELL_WMI_SMBIOS_CMD _IOWR(WMI_IOC, 0, struct dell_wmi_smbios_buffer)

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#endif

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