acpi_sony.c revision 150003 
1238438Sdteske/*-
2238438Sdteske * Copyright (c) 2004 Takanori Watanabe
3238438Sdteske * All rights reserved.
4238438Sdteske *
5238438Sdteske * Redistribution and use in source and binary forms, with or without
6240684Sdteske * modification, are permitted provided that the following conditions
7238438Sdteske * are met:
8238438Sdteske * 1. Redistributions of source code must retain the above copyright
9238438Sdteske *    notice, this list of conditions and the following disclaimer.
10238438Sdteske * 2. Redistributions in binary form must reproduce the above copyright
11238438Sdteske *    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 150003 2005-09-11 18:39:03Z obrien $");
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", "??????"},  /*shares [\GL03]&0x8 flag*/
71	{NULL, NULL,NULL}
72};
73
74static int	acpi_sony_probe(device_t dev);
75static int	acpi_sony_attach(device_t dev);
76static int 	acpi_sony_detach(device_t dev);
77static int	sysctl_acpi_sony_gen_handler(SYSCTL_HANDLER_ARGS);
78
79static device_method_t acpi_sony_methods[] = {
80	/* Device interface */
81	DEVMETHOD(device_probe, acpi_sony_probe),
82	DEVMETHOD(device_attach, acpi_sony_attach),
83	DEVMETHOD(device_detach, acpi_sony_detach),
84
85	{0, 0}
86};
87
88static driver_t	acpi_sony_driver = {
89	"acpi_sony",
90	acpi_sony_methods,
91	sizeof(struct acpi_sony_softc),
92};
93
94static devclass_t acpi_sony_devclass;
95
96DRIVER_MODULE(acpi_sony, acpi, acpi_sony_driver, acpi_sony_devclass,
97	      0, 0);
98MODULE_DEPEND(acpi_sony, acpi, 1, 1, 1);
99static char    *sny_id[] = {"SNY5001", NULL};
100
101static int
102acpi_sony_probe(device_t dev)
103{
104	struct acpi_sony_softc *sc;
105	int		ret = ENXIO;
106
107	sc = device_get_softc(dev);
108
109	if (ACPI_ID_PROBE(device_get_parent(dev), dev, sny_id)) {
110		device_set_desc(dev, "Sony notebook controller");
111		ret = 0;
112	}
113	return (ret);
114}
115
116static int
117acpi_sony_attach(device_t dev)
118{
119	struct acpi_sony_softc *sc;
120	int i;
121
122	sc = device_get_softc(dev);
123	acpi_GetInteger(acpi_get_handle(dev), ACPI_SONY_GET_PID, &sc->pid);
124	device_printf(dev, "PID %x\n", sc->pid);
125	for (i = 0 ; acpi_sony_oids[i].nodename != NULL; i++){
126		SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
127		    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
128		    i, acpi_sony_oids[i].nodename , CTLTYPE_INT |
129		    ((acpi_sony_oids[i].setmethod)? CTLFLAG_RW: CTLFLAG_RD),
130		    dev, i, sysctl_acpi_sony_gen_handler, "I",
131		    acpi_sony_oids[i].comment);
132	}
133	return (0);
134}
135
136static int
137acpi_sony_detach(device_t dev)
138{
139	return (0);
140}
141
142#if 0
143static int
144acpi_sony_suspend(device_t dev)
145{
146	struct acpi_sony_softc *sc = device_get_softc(dev);
147	return (0);
148}
149
150static int
151acpi_sony_resume(device_t dev)
152{
153	return (0);
154}
155#endif
156
157static int
158sysctl_acpi_sony_gen_handler(SYSCTL_HANDLER_ARGS)
159{
160	device_t	dev = arg1;
161	int 	function = oidp->oid_arg2;
162	int		error = 0, val;
163
164	acpi_GetInteger(acpi_get_handle(dev),
165	    acpi_sony_oids[function].getmethod, &val);
166	error = sysctl_handle_int(oidp, &val, 0, req);
167	if (error || !req->newptr || !acpi_sony_oids[function].setmethod)
168		return (error);
169	acpi_SetInteger(acpi_get_handle(dev),
170	    acpi_sony_oids[function].setmethod, val);
171	return (0);
172}
173