1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/* $OpenBSD: acpivideo.c,v 1.3 2009/06/03 00:36:59 pirofti Exp $ */
/*
* Copyright (c) 2008 Federico G. Schwindt <fgsch@openbsd.org>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/acpi/acpidev.h>
#include <dev/acpi/amltypes.h>
#include <dev/acpi/dsdt.h>
#ifdef ACPIVIDEO_DEBUG
#define DPRINTF(x) printf x
#else
#define DPRINTF(x)
#endif
/* _DOS Enable/Disable Output Switching */
#define DOS_SWITCH_BY_OSPM 0
#define DOS_SWITCH_BY_BIOS 1
#define DOS_SWITCH_LOCKED 2
#define DOS_SWITCH_BY_OSPM_EXT 3
#define DOS_BRIGHTNESS_BY_OSPM 4
/* Notifications for Displays Devices */
#define NOTIFY_OUTPUT_SWITCHED 0x80
#define NOTIFY_OUTPUT_CHANGED 0x81
#define NOTIFY_OUTPUT_CYCLE_KEY 0x82
#define NOTIFY_OUTPUT_NEXT_KEY 0x83
#define NOTIFY_OUTPUT_PREV_KEY 0x84
int acpivideo_match(struct device *, void *, void *);
void acpivideo_attach(struct device *, struct device *, void *);
int acpivideo_notify(struct aml_node *, int, void *);
void acpivideo_set_policy(struct acpivideo_softc *, int);
void acpivideo_get_dod(struct acpivideo_softc *);
int acpi_foundvout(struct aml_node *, void *);
int acpivideo_print(void *, const char *);
struct cfattach acpivideo_ca = {
sizeof(struct acpivideo_softc), acpivideo_match, acpivideo_attach
};
struct cfdriver acpivideo_cd = {
NULL, "acpivideo", DV_DULL
};
int
acpivideo_match(struct device *parent, void *match, void *aux)
{
struct acpi_attach_args *aaa = aux;
struct cfdata *cf = match;
if (aaa->aaa_name == NULL || strcmp(aaa->aaa_name,
cf->cf_driver->cd_name) != 0 || aaa->aaa_table != NULL)
return (0);
return (1);
}
void
acpivideo_attach(struct device *parent, struct device *self, void *aux)
{
struct acpivideo_softc *sc = (struct acpivideo_softc *)self;
struct acpi_attach_args *aaa = aux;
sc->sc_acpi = (struct acpi_softc *)parent;
sc->sc_devnode = aaa->aaa_node;
printf(": %s\n", sc->sc_devnode->name);
aml_register_notify(sc->sc_devnode, aaa->aaa_dev,
acpivideo_notify, sc, ACPIDEV_NOPOLL);
acpivideo_set_policy(sc,
DOS_SWITCH_BY_OSPM | DOS_BRIGHTNESS_BY_OSPM);
acpivideo_get_dod(sc);
aml_find_node(aaa->aaa_node, "_DCS", acpi_foundvout, sc);
}
int
acpivideo_notify(struct aml_node *node, int notify, void *arg)
{
struct acpivideo_softc *sc = arg;
switch (notify) {
case NOTIFY_OUTPUT_SWITCHED:
case NOTIFY_OUTPUT_CHANGED:
case NOTIFY_OUTPUT_CYCLE_KEY:
case NOTIFY_OUTPUT_NEXT_KEY:
case NOTIFY_OUTPUT_PREV_KEY:
DPRINTF(("%s: event 0x%02x\n", DEVNAME(sc), notify));
break;
default:
printf("%s: unknown event 0x%02x\n", DEVNAME(sc), notify);
break;
}
return (0);
}
void
acpivideo_set_policy(struct acpivideo_softc *sc, int policy)
{
struct aml_value args, res;
memset(&args, 0, sizeof(args));
args.v_integer = policy;
args.type = AML_OBJTYPE_INTEGER;
aml_evalname(sc->sc_acpi, sc->sc_devnode, "_DOS", 1, &args, &res);
DPRINTF(("%s: set policy to %d", DEVNAME(sc), aml_val2int(&res)));
aml_freevalue(&res);
}
int
acpi_foundvout(struct aml_node *node, void *arg)
{
struct aml_value res;
int i, addr;
char fattach = 0;
struct acpivideo_softc *sc = (struct acpivideo_softc *)arg;
struct device *self = (struct device *)arg;
struct acpivideo_attach_args av;
if (sc->sc_dod == NULL)
return (0);
DPRINTF(("Inside acpi_foundvout()"));
if (aml_evalname(sc->sc_acpi, node->parent, "_ADR", 0, NULL, &res)) {
DPRINTF(("%s: no _ADR\n", DEVNAME(sc)));
return (0);
}
addr = aml_val2int(&res);
DPRINTF(("_ADR: %X\n", addr));
aml_freevalue(&res);
for (i = 0; i < sc->sc_dod_len; i++)
if (addr == (sc->sc_dod[i]&0xffff)) {
DPRINTF(("Matched: %X\n", sc->sc_dod[i]));
fattach = 1;
break;
}
if (fattach) {
memset(&av, 0, sizeof(av));
av.aaa.aaa_iot = sc->sc_acpi->sc_iot;
av.aaa.aaa_memt = sc->sc_acpi->sc_memt;
av.aaa.aaa_node = node->parent;
av.aaa.aaa_name = "acpivout";
av.dod = sc->sc_dod[i];
config_found(self, &av, acpivideo_print);
}
return (0);
}
int
acpivideo_print(void *aux, const char *pnp)
{
struct acpi_attach_args *aa = aux;
if (pnp) {
if (aa->aaa_name)
printf("%s at %s", aa->aaa_name, pnp);
else
return (QUIET);
}
return (UNCONF);
}
void
acpivideo_get_dod(struct acpivideo_softc * sc)
{
struct aml_value res;
int i;
if (aml_evalname(sc->sc_acpi, sc->sc_devnode, "_DOD", 0, NULL, &res)) {
DPRINTF(("%s: no _DOD\n", DEVNAME(sc)));
return;
}
sc->sc_dod_len = res.length;
if (sc->sc_dod_len == 0) {
sc->sc_dod = NULL;
aml_freevalue(&res);
return;
}
sc->sc_dod = malloc(sc->sc_dod_len * sizeof(int), M_DEVBUF,
M_WAITOK|M_ZERO);
if (sc->sc_dod == NULL) {
aml_freevalue(&res);
return;
}
for (i = 0; i < sc->sc_dod_len; i++) {
sc->sc_dod[i] = aml_val2int(res.v_package[i]);
DPRINTF(("DOD: %X ", sc->sc_dod[i]));
}
DPRINTF(("\n"));
aml_freevalue(&res);
}
|
