1 /* SPDX-License-Identifier: GPL-2.0-only WITH <<
2 /* 1 /*
3 * User API methods for ACPI-WMI mapping driv 2 * User API methods for ACPI-WMI mapping driver
4 * 3 *
5 * Copyright (C) 2017 Dell, Inc. 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.
6 */ 9 */
7 #ifndef _UAPI_LINUX_WMI_H 10 #ifndef _UAPI_LINUX_WMI_H
8 #define _UAPI_LINUX_WMI_H 11 #define _UAPI_LINUX_WMI_H
9 12
10 #include <linux/ioctl.h> 13 #include <linux/ioctl.h>
11 #include <linux/types.h> 14 #include <linux/types.h>
12 15
13 /* WMI bus will filter all WMI vendor driver r 16 /* WMI bus will filter all WMI vendor driver requests through this IOC */
14 #define WMI_IOC 'W' 17 #define WMI_IOC 'W'
15 18
16 /* All ioctl requests through WMI should decla 19 /* All ioctl requests through WMI should declare their size followed by
17 * relevant data objects 20 * relevant data objects
18 */ 21 */
19 struct wmi_ioctl_buffer { 22 struct wmi_ioctl_buffer {
20 __u64 length; 23 __u64 length;
21 __u8 data[]; 24 __u8 data[];
22 }; 25 };
23 26
24 /* This structure may be modified by the firmw 27 /* This structure may be modified by the firmware when we enter
25 * system management mode through SMM, hence t 28 * system management mode through SMM, hence the volatiles
26 */ 29 */
27 struct calling_interface_buffer { 30 struct calling_interface_buffer {
28 __u16 cmd_class; 31 __u16 cmd_class;
29 __u16 cmd_select; 32 __u16 cmd_select;
30 volatile __u32 input[4]; 33 volatile __u32 input[4];
31 volatile __u32 output[4]; 34 volatile __u32 output[4];
32 } __packed; 35 } __packed;
33 36
34 struct dell_wmi_extensions { 37 struct dell_wmi_extensions {
35 __u32 argattrib; 38 __u32 argattrib;
36 __u32 blength; 39 __u32 blength;
37 __u8 data[]; 40 __u8 data[];
38 } __packed; 41 } __packed;
39 42
40 struct dell_wmi_smbios_buffer { 43 struct dell_wmi_smbios_buffer {
41 __u64 length; 44 __u64 length;
42 struct calling_interface_buffer std; 45 struct calling_interface_buffer std;
43 struct dell_wmi_extensions ext; 46 struct dell_wmi_extensions ext;
44 } __packed; 47 } __packed;
45 48
46 /* Whitelisted smbios class/select commands */ 49 /* Whitelisted smbios class/select commands */
47 #define CLASS_TOKEN_READ 0 50 #define CLASS_TOKEN_READ 0
48 #define CLASS_TOKEN_WRITE 1 51 #define CLASS_TOKEN_WRITE 1
49 #define SELECT_TOKEN_STD 0 52 #define SELECT_TOKEN_STD 0
50 #define SELECT_TOKEN_BAT 1 53 #define SELECT_TOKEN_BAT 1
51 #define SELECT_TOKEN_AC 2 54 #define SELECT_TOKEN_AC 2
52 #define CLASS_FLASH_INTERFACE 7 55 #define CLASS_FLASH_INTERFACE 7
53 #define SELECT_FLASH_INTERFACE 3 56 #define SELECT_FLASH_INTERFACE 3
54 #define CLASS_ADMIN_PROP 10 57 #define CLASS_ADMIN_PROP 10
55 #define SELECT_ADMIN_PROP 3 58 #define SELECT_ADMIN_PROP 3
56 #define CLASS_INFO 17 59 #define CLASS_INFO 17
57 #define SELECT_RFKILL 11 60 #define SELECT_RFKILL 11
58 #define SELECT_APP_REGISTRATION 3 61 #define SELECT_APP_REGISTRATION 3
59 #define SELECT_DOCK 22 62 #define SELECT_DOCK 22
60 63
61 /* whitelisted tokens */ 64 /* whitelisted tokens */
62 #define CAPSULE_EN_TOKEN 0x0461 65 #define CAPSULE_EN_TOKEN 0x0461
63 #define CAPSULE_DIS_TOKEN 0x0462 66 #define CAPSULE_DIS_TOKEN 0x0462
64 #define WSMT_EN_TOKEN 0x04EC 67 #define WSMT_EN_TOKEN 0x04EC
65 #define WSMT_DIS_TOKEN 0x04ED 68 #define WSMT_DIS_TOKEN 0x04ED
66 69
67 /* Dell SMBIOS calling IOCTL command used by d 70 /* Dell SMBIOS calling IOCTL command used by dell-smbios-wmi */
68 #define DELL_WMI_SMBIOS_CMD _IOWR(WMI_IOC, 71 #define DELL_WMI_SMBIOS_CMD _IOWR(WMI_IOC, 0, struct dell_wmi_smbios_buffer)
69 72
70 #endif 73 #endif
71 74
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