1/* $NetBSD: wmi_acpivar.h,v 1.5 2010/10/28 15:55:04 jruoho Exp $ */
2
3/*-
4 * Copyright (c) 2009, 2010 Jukka Ruohonen <jruohonen@iki.fi>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#ifndef _SYS_DEV_ACPI_WMI_WMI_ACPIVAR_H
31#define _SYS_DEV_ACPI_WMI_WMI_ACPIVAR_H
32
33#include <sys/cdefs.h>
34__KERNEL_RCSID(0, "$NetBSD: wmi_acpivar.h,v 1.5 2010/10/28 15:55:04 jruoho Exp $");
35
36ACPI_STATUS acpi_wmi_event_register(device_t, ACPI_NOTIFY_HANDLER);
37ACPI_STATUS acpi_wmi_event_deregister(device_t);
38ACPI_STATUS acpi_wmi_event_get(device_t, uint32_t, ACPI_BUFFER *);
39
40int acpi_wmi_guid_match(device_t, const char *);
41
42ACPI_STATUS acpi_wmi_data_query(device_t, const char *,
43 uint8_t, ACPI_BUFFER *);
44ACPI_STATUS acpi_wmi_data_write(device_t, const char *,
45 uint8_t, ACPI_BUFFER *);
46
47ACPI_STATUS acpi_wmi_method(device_t, const char *, uint8_t,
48 uint32_t, ACPI_BUFFER *, ACPI_BUFFER *);
49
50struct guid_t {
51
52 /*
53 * The GUID itself. The used format is the usual 32-16-16-64-bit
54 * representation. All except the fourth field are in native byte
55 * order. A 32-16-16-16-48-bit hexadecimal notation with hyphens
56 * is used for human-readable GUIDs.
57 */
58 struct {
59 uint32_t data1;
60 uint16_t data2;
61 uint16_t data3;
62 uint8_t data4[8];
63 } __packed;
64
65 union {
66 char oid[2]; /* ACPI object ID. */
67
68 struct {
69 uint8_t nid; /* Notification value. */
70 uint8_t res; /* Reserved. */
71 } __packed;
72 } __packed;
73
74 uint8_t count; /* Number of instances. */
75 uint8_t flags; /* Additional flags. */
76
77} __packed;
78
79#define ACPI_WMI_FLAG_EXPENSIVE 0x01
80#define ACPI_WMI_FLAG_METHOD 0x02
81#define ACPI_WMI_FLAG_STRING 0x04
82#define ACPI_WMI_FLAG_EVENT 0x08
83#define ACPI_WMI_FLAG_DATA (ACPI_WMI_FLAG_EXPENSIVE | \
84 ACPI_WMI_FLAG_STRING)
85
86struct wmi_t {
87 struct guid_t guid;
88 bool eevent;
89
90 SIMPLEQ_ENTRY(wmi_t) wmi_link;
91};
92
93struct acpi_wmi_softc {
94 device_t sc_dev;
95 device_t sc_child;
96 device_t sc_ecdev;
97 struct acpi_devnode *sc_node;
98 ACPI_NOTIFY_HANDLER sc_handler;
99
100 SIMPLEQ_HEAD(, wmi_t) wmi_head;
101};
102
103#define UGET16(x) (*(uint16_t *)(x))
104#define UGET64(x) (*(uint64_t *)(x))
105
106#define HEXCHAR(x) (((x) >= '0' && (x) <= '9') || \
107 ((x) >= 'a' && (x) <= 'f') || \
108 ((x) >= 'A' && (x) <= 'F'))
109
110#define GUIDCMP(a, b) \
111 ((a)->data1 == (b)->data1 && \
112 (a)->data2 == (b)->data2 && \
113 (a)->data3 == (b)->data3 && \
114 UGET64((a)->data4) == UGET64((b)->data4))
115
116#endif /* !_SYS_DEV_ACPI_WMI_WMI_ACPIVAR_H */
117