acpi_sony.c revision 138825 
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 *	$FreeBSD: head/sys/dev/acpi_support/acpi_sony.c 138825 2004-12-13 23:31:46Z njl $
27 */
28
29#include "opt_acpi.h"
30#include <sys/param.h>
31#include <sys/kernel.h>
32#include <sys/bus.h>
33#include "acpi.h"
34#include "acpi_if.h"
35#include <sys/module.h>
36#include <dev/acpica/acpivar.h>
37#include <sys/sysctl.h>
38
39#define _COMPONENT	ACPI_OEM
40ACPI_MODULE_NAME("Sony")
41
42#define ACPI_SONY_GET_BRIGHTNESS "GBRT"
43#define ACPI_SONY_SET_BRIGHTNESS "SBRT"
44#define ACPI_SONY_GET_PID "GPID"
45
46/*
47 * SNY5001
48 *  [GS]BRT [GS]PBR [GS]CTR [GS]PCR [GS]CMI [CDPW GCDP]? GWDP PWAK PWRN
49 *
50 */
51
52struct acpi_sony_softc {
53	int pid;
54};
55static struct acpi_sony_name_list
56{
57	char *nodename;
58	char *getmethod;
59	char *setmethod;
60	char *comment;
61} acpi_sony_oids[] = {
62	{ "brightness", "GBRT", "SBRT", "Display Brightness"},
63	{ "ctr", "GCTR", "SCTR", "??"},
64	{ "pcr", "GPCR", "SPCR", "???"},
65#if 0
66	{ "cmi", "GCMI", "SCMI", "????"},
67#endif
68	{ "wdp", "GWDP", NULL, "?????"},
69	{ "cdp", "GCDP", "CDPW", "??????"},  /*shares [\GL03]&0x8 flag*/
70	{NULL, NULL,NULL}
71};
72
73static int	acpi_sony_probe(device_t dev);
74static int	acpi_sony_attach(device_t dev);
75static int 	acpi_sony_detach(device_t dev);
76static int	sysctl_acpi_sony_gen_handler(SYSCTL_HANDLER_ARGS);
77
78static device_method_t acpi_sony_methods[] = {
79	/* Device interface */
80	DEVMETHOD(device_probe, acpi_sony_probe),
81	DEVMETHOD(device_attach, acpi_sony_attach),
82	DEVMETHOD(device_detach, acpi_sony_detach),
83
84	{0, 0}
85};
86
87static driver_t	acpi_sony_driver = {
88	"acpi_sony",
89	acpi_sony_methods,
90	sizeof(struct acpi_sony_softc),
91};
92
93static devclass_t acpi_sony_devclass;
94
95DRIVER_MODULE(acpi_sony, acpi, acpi_sony_driver, acpi_sony_devclass,
96	      0, 0);
97MODULE_DEPEND(acpi_sony, acpi, 1, 1, 1);
98static char    *sny_id[] = {"SNY5001", NULL};
99
100static int
101acpi_sony_probe(device_t dev)
102{
103	struct acpi_sony_softc *sc;
104	int		ret = ENXIO;
105
106	sc = device_get_softc(dev);
107
108	if (ACPI_ID_PROBE(device_get_parent(dev), dev, sny_id)) {
109		device_set_desc(dev, "Sony notebook controller");
110		ret = 0;
111	}
112	return (ret);
113}
114
115static int
116acpi_sony_attach(device_t dev)
117{
118	struct acpi_sony_softc *sc;
119	int i;
120
121	sc = device_get_softc(dev);
122	acpi_GetInteger(acpi_get_handle(dev), ACPI_SONY_GET_PID, &sc->pid);
123	device_printf(dev, "PID %x\n", sc->pid);
124	for (i = 0 ; acpi_sony_oids[i].nodename != NULL; i++){
125		SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
126		    SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
127		    i, acpi_sony_oids[i].nodename , CTLTYPE_INT |
128		    ((acpi_sony_oids[i].setmethod)? CTLFLAG_RW: CTLFLAG_RD),
129		    dev, i, sysctl_acpi_sony_gen_handler, "I",
130		    acpi_sony_oids[i].comment);
131	}
132	return (0);
133}
134
135static int
136acpi_sony_detach(device_t dev)
137{
138	return (0);
139}
140
141#if 0
142static int
143acpi_sony_suspend(device_t dev)
144{
145	struct acpi_sony_softc *sc = device_get_softc(dev);
146	return (0);
147}
148
149static int
150acpi_sony_resume(device_t dev)
151{
152	return (0);
153}
154#endif
155
156static int
157sysctl_acpi_sony_gen_handler(SYSCTL_HANDLER_ARGS)
158{
159	device_t	dev = arg1;
160	int 	function = oidp->oid_arg2;
161	int		error = 0, val;
162
163	acpi_GetInteger(acpi_get_handle(dev),
164	    acpi_sony_oids[function].getmethod, &val);
165	error = sysctl_handle_int(oidp, &val, 0, req);
166	if (error || !req->newptr || !acpi_sony_oids[function].setmethod)
167		return (error);
168	acpi_SetInteger(acpi_get_handle(dev),
169	    acpi_sony_oids[function].setmethod, val);
170	return (0);
171}
172