1 /*-
2 * Copyright (c) 2011, Justin Hibbits.
3 * Copyright (c) 2002, Miodrag Vallat.
4 * Copyright (C) 1999 Tsubai Masanari. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * OpenBSD: abtn.c,v 1.12 2009/01/10 18:00:59 robert Exp
29 * NetBSD: abtn.c,v 1.1 1999/07/12 17:48:26 tsubai Exp
30 *
31 * $FreeBSD: releng/10.3/sys/dev/adb/adb_buttons.c 226449 2011-10-16 21:01:42Z nwhitehorn $
32 */
33
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/module.h>
37 #include <sys/kernel.h>
38 #include <sys/bus.h>
39
40 #include <machine/bus.h>
41
42 #include <dev/ofw/openfirm.h>
43 #include <machine/ofw_machdep.h>
44
45 #include <dev/adb/adb.h>
46
47 #define ABTN_HANDLER_ID 31
48
49 struct abtn_softc {
50 device_t sc_dev;
51
52 int handler_id;
53 };
54
55 static int abtn_probe(device_t dev);
56 static int abtn_attach(device_t dev);
57 static u_int abtn_receive_packet(device_t dev, u_char status,
58 u_char command, u_char reg, int len, u_char *data);
59
60 static device_method_t abtn_methods[] = {
61 /* Device interface */
62 DEVMETHOD(device_probe, abtn_probe),
63 DEVMETHOD(device_attach, abtn_attach),
64 DEVMETHOD(device_shutdown, bus_generic_shutdown),
65 DEVMETHOD(device_suspend, bus_generic_suspend),
66 DEVMETHOD(device_resume, bus_generic_resume),
67
68 /* ADB interface */
69 DEVMETHOD(adb_receive_packet, abtn_receive_packet),
70
71 { 0, 0 }
72 };
73
74 static driver_t abtn_driver = {
75 "abtn",
76 abtn_methods,
77 sizeof(struct abtn_softc),
78 };
79
80 static devclass_t abtn_devclass;
81
82 DRIVER_MODULE(abtn, adb, abtn_driver, abtn_devclass, 0, 0);
83
84 static int
85 abtn_probe(device_t dev)
86 {
87 uint8_t type;
88
89 type = adb_get_device_type(dev);
90
91 if (type != ADB_DEVICE_MISC)
92 return (ENXIO);
93
94 device_set_desc(dev, "ADB Brightness/Volume/Eject Buttons");
95 return (0);
96 }
97
98 static int
99 abtn_attach(device_t dev)
100 {
101 struct abtn_softc *sc;
102
103 sc = device_get_softc(dev);
104 sc->sc_dev = dev;
105
106 sc->handler_id = adb_get_device_handler(dev);
107
108 return 0;
109 }
110
111 static u_int
112 abtn_receive_packet(device_t dev, u_char status,
113 u_char command, u_char reg, int len, u_char *data)
114 {
115 u_int cmd;
116
117 cmd = data[0];
118
119 switch (cmd) {
120 case 0x0a: /* decrease brightness */
121 if (devctl_process_running())
122 devctl_notify("PMU", "keys", "brightness",
123 "notify=down");
124 break;
125
126 case 0x09: /* increase brightness */
127 if (devctl_process_running())
128 devctl_notify("PMU", "keys", "brightness", "notify=up");
129 break;
130
131 case 0x08: /* mute */
132 case 0x01: /* mute, AV hardware */
133 if (devctl_process_running())
134 devctl_notify("PMU", "keys", "mute", NULL);
135 break;
136 case 0x07: /* decrease volume */
137 case 0x02: /* decrease volume, AV hardware */
138 if (devctl_process_running())
139 devctl_notify("PMU", "keys", "volume", "notify=down");
140 break;
141 case 0x06: /* increase volume */
142 case 0x03: /* increase volume, AV hardware */
143 if (devctl_process_running())
144 devctl_notify("PMU", "keys", "volume", "notify=up");
145 break;
146 case 0x0c: /* mirror display key */
147 /* Need callback to do something with this */
148 break;
149 case 0x0b: /* eject tray */
150 if (devctl_process_running())
151 devctl_notify("PMU", "keys", "eject", NULL);
152 case 0x7f: /* numlock */
153 /* Need callback to do something with this */
154 break;
155
156 default:
157 #ifdef DEBUG
158 if ((cmd & ~0x7f) == 0)
159 device_printf(dev, "unknown ADB button 0x%x\n", cmd);
160 #endif
161 break;
162 }
163 return 0;
164 }
165
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