acpi_sony.c revision 192030 
1/*-
2 * Copyright (c) 2004 Takanori Watanabe
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/dev/acpi_support/acpi_sony.c 192030 2009-05-12 23:22:58Z brueffer $");
29
30#include "opt_acpi.h"
31#include <sys/param.h>
32#include <sys/kernel.h>
33#include <sys/bus.h>
34#include <contrib/dev/acpica/acpi.h>
35#include "acpi_if.h"
36#include <sys/module.h>
37#include <dev/acpica/acpivar.h>
38#include <sys/sysctl.h>
39
40#define _COMPONENT	ACPI_OEM
41ACPI_MODULE_NAME("Sony")
42
43#define ACPI_SONY_GET_BRIGHTNESS "GBRT"
44#define ACPI_SONY_SET_BRIGHTNESS "SBRT"
45#define ACPI_SONY_GET_PID "GPID"
46
47/*
48 * SNY5001
49 *  [GS]BRT [GS]PBR [GS]CTR [GS]PCR [GS]CMI [CDPW GCDP]? GWDP PWAK PWRN
50 *
51 */
52
53struct acpi_sony_softc {
54	int pid;
55};
56static struct acpi_sony_name_list
57{
58	char *nodename;
59	char *getmethod;
60	char *setmethod;
61	char *comment;
62} acpi_sony_oids[] = {
63	{ "brightness", "GBRT", "SBRT", "Display Brightness"},
64	{ "ctr", "GCTR", "SCTR", "??"},
65	{ "pcr", "GPCR", "SPCR", "???"},
66#if 0
67	{ "cmi", "GCMI", "SCMI", "????"},
68#endif
69	{ "wdp", "GWDP", NULL, "?????"},
70	{ "cdp", "GCDP", "CDPW", "CD Power"},  /*shares [\GL03]&0x8 flag*/
71	{ "azp", "GAZP", "AZPW", "Audio Power"},
72	{ NULL, NULL, NULL }
73};
74
75static int	acpi_sony_probe(device_t dev);
76static int	acpi_sony_attach(device_t dev);
77static int 	acpi_sony_detach(device_t dev);
78static int	sysctl_acpi_sony_gen_handler(SYSCTL_HANDLER_ARGS);
79
80static device_method_t acpi_sony_methods[] = {
81	/* Device interface */
82	DEVMETHOD(device_probe, acpi_sony_probe),
83	DEVMETHOD(device_attach, acpi_sony_attach),
84	DEVMETHOD(device_detach, acpi_sony_detach),
85
86	{0, 0}
87};
88
89static driver_t	acpi_sony_driver = {
90	"acpi_sony",
91	acpi_sony_methods,
92	sizeof(struct acpi_sony_softc),
93};
94
95static devclass_t acpi_sony_devclass;
96
97DRIVER_MODULE(acpi_sony, acpi, acpi_sony_driver, acpi_sony_devclass,
98	      0, 0);
99MODULE_DEPEND(acpi_sony, acpi, 1, 1, 1);
100static char    *sny_id[] = {"SNY5001", NULL};
101
102static int
103acpi_sony_probe(device_t dev)
104{
105	int ret = ENXIO;
106
107	if (ACPI_ID_PROBE(device_get_parent(dev), dev, sny_id)) {
108		device_set_desc(dev, "Sony notebook controller");
109		ret = 0;
110	}
111	return (ret);
112}
113
114static int
115acpi_sony_attach(device_t dev)
116{
117	struct acpi_sony_softc *sc;
118	int i;
119
120	sc = device_get_softc(dev);
121	acpi_GetInteger(acpi_get_handle(dev), ACPI_SONY_GET_PID, &sc->pid);
122	device_printf(dev, "PID %x\n", sc->pid);
123	for (i = 0 ; acpi_sony_oids[i].nodename != NULL; i++){
124		SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
125		    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
126		    i, acpi_sony_oids[i].nodename , CTLTYPE_INT |
127		    ((acpi_sony_oids[i].setmethod)? CTLFLAG_RW: CTLFLAG_RD),
128		    dev, i, sysctl_acpi_sony_gen_handler, "I",
129		    acpi_sony_oids[i].comment);
130	}
131	return (0);
132}
133
134static int
135acpi_sony_detach(device_t dev)
136{
137	return (0);
138}
139
140#if 0
141static int
142acpi_sony_suspend(device_t dev)
143{
144	struct acpi_sony_softc *sc = device_get_softc(dev);
145	return (0);
146}
147
148static int
149acpi_sony_resume(device_t dev)
150{
151	return (0);
152}
153#endif
154
155static int
156sysctl_acpi_sony_gen_handler(SYSCTL_HANDLER_ARGS)
157{
158	device_t	dev = arg1;
159	int 	function = oidp->oid_arg2;
160	int		error = 0, val;
161
162	acpi_GetInteger(acpi_get_handle(dev),
163	    acpi_sony_oids[function].getmethod, &val);
164	error = sysctl_handle_int(oidp, &val, 0, req);
165	if (error || !req->newptr || !acpi_sony_oids[function].setmethod)
166		return (error);
167	acpi_SetInteger(acpi_get_handle(dev),
168	    acpi_sony_oids[function].setmethod, val);
169	return (0);
170}
171