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

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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 137745 2004-11-15 20:08:44Z imp $
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#define ACPI_SNC_GET_BRIGHTNESS "GBRT"
39#define ACPI_SNC_SET_BRIGHTNESS "SBRT"
40#define ACPI_SNC_GET_PID "GPID"
41/*
42 * SNY5001
43 * [GS]BRT [GS]PBR [GS]CTR [GS]PCR [GS]CMI [CDPW GCDP]? GWDP PWAK PWRN
44 *
45 */
46
47struct acpi_snc_softc {
48 int pid;
49};
50static struct acpi_snc_name_list
51{
52 char *nodename;
53 char *getmethod;
54 char *setmethod;
55 char *comment;
56} acpi_snc_oids[] = {
57 { "brightness", "GBRT", "SBRT", "Display Brightness"},
58 { "ctr", "GCTR", "SCTR", "??"},
59 { "pcr", "GPCR", "SPCR", "???"},
60#if 0
61 { "cmi", "GCMI", "SCMI", "????"},
62#endif
63 { "wdp", "GWDP", NULL, "?????"},
64 { "cdp", "GCDP", "CDPW", "??????"}, /*shares [\GL03]&0x8 flag*/
65 {NULL, NULL,NULL}
66};
67
68static int acpi_snc_probe(device_t dev);
69static int acpi_snc_attach(device_t dev);
70static int acpi_snc_detach(device_t dev);
71static int sysctl_acpi_snc_gen_handler(SYSCTL_HANDLER_ARGS);
72
73static device_method_t acpi_snc_methods[] = {
74 /* Device interface */
75 DEVMETHOD(device_probe, acpi_snc_probe),
76 DEVMETHOD(device_attach, acpi_snc_attach),
77 DEVMETHOD(device_detach, acpi_snc_detach),
78
79 {0, 0}
80};
81
82static driver_t acpi_snc_driver = {
83 "acpi_snc",
84 acpi_snc_methods,
85 sizeof(struct acpi_snc_softc),
86};
87
88static devclass_t acpi_snc_devclass;
89
90DRIVER_MODULE(acpi_snc, acpi, acpi_snc_driver, acpi_snc_devclass,
91 0, 0);
92MODULE_DEPEND(acpi_snc, acpi, 1, 1, 1);
93static char *sny_id[] = {"SNY5001", NULL};
94
95static int
96acpi_snc_probe(device_t dev)
97{
98 struct acpi_snc_softc *sc;
99 int ret = ENXIO;
100
101 sc = device_get_softc(dev);
102
103 if (ACPI_ID_PROBE(device_get_parent(dev), dev, sny_id)) {
104 device_set_desc(dev, "Sony notebook controller");
105 ret = 0;
106 }
107 return (ret);
108}
109
110static int
111acpi_snc_attach(device_t dev)
112{
113 struct acpi_snc_softc *sc;
114 int i;
115
116 sc = device_get_softc(dev);
117 acpi_GetInteger(acpi_get_handle(dev), ACPI_SNC_GET_PID, &sc->pid);
118 device_printf(dev, "PID %x\n", sc->pid);
119 for (i = 0 ; acpi_snc_oids[i].nodename != NULL; i++){
120 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
121 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
122 i, acpi_snc_oids[i].nodename , CTLTYPE_INT |
123 ((acpi_snc_oids[i].setmethod)? CTLFLAG_RW: CTLFLAG_RD),
124 dev, i, sysctl_acpi_snc_gen_handler, "I",
125 acpi_snc_oids[i].comment);
126 }
127 return (0);
128}
129
130static int
131acpi_snc_detach(device_t dev)
132{
133 return (0);
134}
135
136#if 0
137static int
138acpi_snc_suspend(device_t dev)
139{
140 struct acpi_snc_softc *sc = device_get_softc(dev);
141 return (0);
142}
143
144static int
145acpi_snc_resume(device_t dev)
146{
147 return (0);
148}
149#endif
150
151static int
152sysctl_acpi_snc_gen_handler(SYSCTL_HANDLER_ARGS)
153{
154 device_t dev = arg1;
155 int function = oidp->oid_arg2;
156 int error = 0, val;
157
158 acpi_GetInteger(acpi_get_handle(dev),
159 acpi_snc_oids[function].getmethod, &val);
160 error = sysctl_handle_int(oidp, &val, 0, req);
161 if (error || !req->newptr || !acpi_snc_oids[function].setmethod)
162 return (error);
163 acpi_SetInteger(acpi_get_handle(dev),
164 acpi_snc_oids[function].setmethod, val);
165 return (0);
166}