| 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 | |
| 36 | ACPI_STATUS acpi_wmi_event_register(device_t, ACPI_NOTIFY_HANDLER); |
| 37 | ACPI_STATUS acpi_wmi_event_deregister(device_t); |
| 38 | ACPI_STATUS acpi_wmi_event_get(device_t, uint32_t, ACPI_BUFFER *); |
| 39 | |
| 40 | int acpi_wmi_guid_match(device_t, const char *); |
| 41 | |
| 42 | ACPI_STATUS acpi_wmi_data_query(device_t, const char *, |
| 43 | uint8_t, ACPI_BUFFER *); |
| 44 | ACPI_STATUS acpi_wmi_data_write(device_t, const char *, |
| 45 | uint8_t, ACPI_BUFFER *); |
| 46 | |
| 47 | ACPI_STATUS acpi_wmi_method(device_t, const char *, uint8_t, |
| 48 | uint32_t, ACPI_BUFFER *, ACPI_BUFFER *); |
| 49 | |
| 50 | struct 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 | |
| 86 | struct wmi_t { |
| 87 | struct guid_t guid; |
| 88 | bool eevent; |
| 89 | |
| 90 | SIMPLEQ_ENTRY(wmi_t) wmi_link; |
| 91 | }; |
| 92 | |
| 93 | struct 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 | |