2 * Copyright (c) 2000 Takanori Watanabe <takawata@jp.freebsd.org>
3 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
4 * Copyright (c) 2000 Michael Smith <msmith@freebd.org>
5 * Copyright (c) 2000 BSDi
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
29 * $FreeBSD: src/sys/dev/acpica/acpi_lid.c,v 1.23 2004/06/13 22:52:30 njl Exp $
30 * $DragonFly: src/sys/dev/acpica5/acpi_lid.c,v 1.5 2007/10/23 03:04:48 y0netan1 Exp $
34 #include <sys/param.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
42 #include <dev/acpica5/acpivar.h>
44 /* Hooks for the ACPI CA debugging infrastructure */
45 #define _COMPONENT ACPI_BUTTON
46 ACPI_MODULE_NAME("LID")
48 struct acpi_lid_softc
{
50 ACPI_HANDLE lid_handle
;
51 int lid_status
; /* open or closed */
54 static int acpi_lid_probe(device_t dev
);
55 static int acpi_lid_attach(device_t dev
);
56 static int acpi_lid_suspend(device_t dev
);
57 static int acpi_lid_resume(device_t dev
);
58 static void acpi_lid_notify_status_changed(void *arg
);
59 static void acpi_lid_notify_handler(ACPI_HANDLE h
, UINT32 notify
,
62 static device_method_t acpi_lid_methods
[] = {
63 /* Device interface */
64 DEVMETHOD(device_probe
, acpi_lid_probe
),
65 DEVMETHOD(device_attach
, acpi_lid_attach
),
66 DEVMETHOD(device_suspend
, acpi_lid_suspend
),
67 DEVMETHOD(device_resume
, acpi_lid_resume
),
72 static driver_t acpi_lid_driver
= {
75 sizeof(struct acpi_lid_softc
),
78 static devclass_t acpi_lid_devclass
;
79 DRIVER_MODULE(acpi_lid
, acpi
, acpi_lid_driver
, acpi_lid_devclass
, 0, 0);
80 MODULE_DEPEND(acpi_lid
, acpi
, 1, 1, 1);
83 acpi_lid_probe(device_t dev
)
85 if (acpi_get_type(dev
) == ACPI_TYPE_DEVICE
&& !acpi_disabled("lid") &&
86 acpi_MatchHid(acpi_get_handle(dev
), "PNP0C0D")) {
88 device_set_desc(dev
, "Control Method Lid Switch");
95 acpi_lid_attach(device_t dev
)
97 struct acpi_lid_softc
*sc
;
99 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__
);
101 sc
= device_get_softc(dev
);
103 sc
->lid_handle
= acpi_get_handle(dev
);
106 * If a system does not get lid events, it may make sense to change
107 * the type to ACPI_ALL_NOTIFY. Some systems generate both a wake and
108 * runtime notify in that case though.
110 AcpiInstallNotifyHandler(sc
->lid_handle
, ACPI_DEVICE_NOTIFY
,
111 acpi_lid_notify_handler
, sc
);
113 /* Enable the GPE for wake/runtime. */
114 acpi_wake_init(dev
, ACPI_GPE_TYPE_WAKE_RUN
);
115 acpi_wake_set_enable(dev
, 1);
121 acpi_lid_suspend(device_t dev
)
123 struct acpi_softc
*acpi_sc
;
125 acpi_sc
= acpi_device_get_parent_softc(dev
);
126 acpi_wake_sleep_prep(dev
, acpi_sc
->acpi_sstate
);
131 acpi_lid_resume(device_t dev
)
133 acpi_wake_run_prep(dev
);
138 acpi_lid_notify_status_changed(void *arg
)
140 struct acpi_lid_softc
*sc
;
141 struct acpi_softc
*acpi_sc
;
144 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__
);
146 sc
= (struct acpi_lid_softc
*)arg
;
149 * Evaluate _LID and check the return value, update lid status.
150 * Zero: The lid is closed
151 * Non-zero: The lid is open
153 status
= acpi_GetInteger(sc
->lid_handle
, "_LID", &sc
->lid_status
);
154 if (ACPI_FAILURE(status
))
157 acpi_sc
= acpi_device_get_parent_softc(sc
->lid_dev
);
161 ACPI_VPRINT(sc
->lid_dev
, acpi_sc
, "Lid %s\n",
162 sc
->lid_status
? "opened" : "closed");
164 acpi_UserNotify("Lid", sc
->lid_handle
, sc
->lid_status
);
166 if (sc
->lid_status
== 0)
167 EVENTHANDLER_INVOKE(acpi_sleep_event
, acpi_sc
->acpi_lid_switch_sx
);
169 EVENTHANDLER_INVOKE(acpi_wakeup_event
, acpi_sc
->acpi_lid_switch_sx
);
174 /* XXX maybe not here */
175 #define ACPI_NOTIFY_STATUS_CHANGED 0x80
178 acpi_lid_notify_handler(ACPI_HANDLE h
, UINT32 notify
, void *context
)
180 struct acpi_lid_softc
*sc
;
182 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__
, notify
);
184 sc
= (struct acpi_lid_softc
*)context
;
186 case ACPI_NOTIFY_STATUS_CHANGED
:
187 AcpiOsExecute(OSL_NOTIFY_HANDLER
, acpi_lid_notify_status_changed
, sc
);
190 device_printf(sc
->lid_dev
, "unknown notify %#x\n", notify
);