acpi_machdep.c revision 189903 
1/*-
2 * Copyright (c) 2001 Mitsuru IWASAKI
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/amd64/acpica/acpi_machdep.c 189903 2009-03-17 00:48:11Z jkim $");
29
30#include <sys/param.h>
31#include <sys/bus.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include <sys/sysctl.h>
35
36#include <contrib/dev/acpica/acpi.h>
37#include <dev/acpica/acpivar.h>
38
39#include <machine/nexusvar.h>
40
41SYSCTL_DECL(_debug_acpi);
42
43uint32_t acpi_resume_beep;
44TUNABLE_INT("debug.acpi.resume_beep", &acpi_resume_beep);
45SYSCTL_UINT(_debug_acpi, OID_AUTO, resume_beep, CTLFLAG_RW, &acpi_resume_beep,
46    0, "Beep the PC speaker when resuming");
47uint32_t acpi_reset_video;
48TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
49
50static int intr_model = ACPI_INTR_PIC;
51static struct apm_clone_data acpi_clone;
52
53int
54acpi_machdep_init(device_t dev)
55{
56	struct acpi_softc	*sc;
57
58	sc = devclass_get_softc(devclass_find("acpi"), 0);
59
60	/* Create a fake clone for /dev/acpi. */
61	STAILQ_INIT(&sc->apm_cdevs);
62	acpi_clone.cdev = sc->acpi_dev_t;
63	acpi_clone.acpi_sc = sc;
64	ACPI_LOCK(acpi);
65	STAILQ_INSERT_TAIL(&sc->apm_cdevs, &acpi_clone, entries);
66	ACPI_UNLOCK(acpi);
67	sc->acpi_clone = &acpi_clone;
68	acpi_install_wakeup_handler(sc);
69
70	if (intr_model != ACPI_INTR_PIC)
71		acpi_SetIntrModel(intr_model);
72
73	SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
74	    SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
75	    "reset_video", CTLFLAG_RW, &acpi_reset_video, 0,
76	    "Call the VESA reset BIOS vector on the resume path");
77
78	return (0);
79}
80
81void
82acpi_SetDefaultIntrModel(int model)
83{
84
85	intr_model = model;
86}
87
88int
89acpi_machdep_quirks(int *quirks)
90{
91	return (0);
92}
93
94void
95acpi_cpu_c1()
96{
97	__asm __volatile("sti; hlt");
98}
99
100/*
101 * ACPI nexus(4) driver.
102 */
103static int
104nexus_acpi_probe(device_t dev)
105{
106	int error;
107
108	error = acpi_identify();
109	if (error)
110		return (error);
111
112	return (BUS_PROBE_DEFAULT);
113}
114
115static int
116nexus_acpi_attach(device_t dev)
117{
118
119	nexus_init_resources();
120	bus_generic_probe(dev);
121	if (BUS_ADD_CHILD(dev, 10, "acpi", 0) == NULL)
122		panic("failed to add acpi0 device");
123
124	return (bus_generic_attach(dev));
125}
126
127static device_method_t nexus_acpi_methods[] = {
128	/* Device interface */
129	DEVMETHOD(device_probe,		nexus_acpi_probe),
130	DEVMETHOD(device_attach,	nexus_acpi_attach),
131
132	{ 0, 0 }
133};
134
135DEFINE_CLASS_1(nexus, nexus_acpi_driver, nexus_acpi_methods, 1, nexus_driver);
136static devclass_t nexus_devclass;
137
138DRIVER_MODULE(nexus_acpi, root, nexus_acpi_driver, nexus_devclass, 0, 0);
139