adb_bt.c revision 1.5 
1/*	$NetBSD: adb_bt.c,v 1.5 2008/05/15 19:19:50 macallan Exp $ */
2
3/*-
4 * Copyright (c) 2006 Michael Lorenz
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__KERNEL_RCSID(0, "$NetBSD: adb_bt.c,v 1.5 2008/05/15 19:19:50 macallan Exp $");
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/kernel.h>
35#include <sys/device.h>
36#include <sys/proc.h>
37
38#include <machine/autoconf.h>
39#include <machine/adbsys.h>
40#include <machine/keyboard.h>
41
42#include <dev/adb/adbvar.h>
43
44#include "opt_wsdisplay_compat.h"
45#include "adbdebug.h"
46
47#ifdef ADBBT_DEBUG
48#define DPRINTF printf
49#else
50#define DPRINTF while (0) printf
51#endif
52
53#define BT_VOL_UP	0x06
54#define BT_VOL_DOWN	0x07
55#define BT_VOL_MUTE	0x08
56#define BT_BRT_UP	0x09
57#define BT_BRT_DOWN	0x0a
58#define BT_EJECT	0x0b
59#define BT_F7		0x0c
60#define BT_NUMLOCK	0x7f
61
62static int adbbt_match(device_t, cfdata_t, void *);
63static void adbbt_attach(device_t, device_t, void *);
64
65struct adbbt_softc {
66	device_t sc_dev;
67	struct adb_device *sc_adbdev;
68	struct adb_bus_accessops *sc_ops;
69	int sc_msg_len;
70	int sc_event;
71	uint8_t sc_buffer[16];
72	uint8_t sc_us;
73};
74
75/* Driver definition. */
76CFATTACH_DECL_NEW(adbbt, sizeof(struct adbbt_softc),
77    adbbt_match, adbbt_attach, NULL, NULL);
78
79extern struct cfdriver adbbt_cd;
80
81static void adbbt_handler(void *, int, uint8_t *);
82
83static int
84adbbt_match(device_t parent, cfdata_t cf, void *aux)
85{
86	struct adb_attach_args *aaa = aux;
87
88	if ((aaa->dev->original_addr == ADBADDR_MISC) &&
89	    (aaa->dev->handler_id == 0x1f))
90		return 100;
91	else
92		return 0;
93}
94
95static void
96adbbt_attach(device_t parent, device_t self, void *aux)
97{
98	struct adbbt_softc *sc = device_private(self);
99	struct adb_attach_args *aaa = aux;
100
101	sc->sc_dev = self;
102	sc->sc_ops = aaa->ops;
103	sc->sc_adbdev = aaa->dev;
104	sc->sc_adbdev->cookie = sc;
105	sc->sc_adbdev->handler = adbbt_handler;
106	sc->sc_us = ADBTALK(sc->sc_adbdev->current_addr, 0);
107
108	sc->sc_msg_len = 0;
109
110	printf(" addr %d: button device\n", sc->sc_adbdev->current_addr);
111}
112
113static void
114adbbt_handler(void *cookie, int len, uint8_t *data)
115{
116	/* struct adbbt_softc *sc = cookie; */
117	uint8_t k, scancode;
118
119#ifdef ADBBT_DEBUG
120	int i;
121	printf("%s: %02x - ", device_xname(&sc->sc_dev), sc->sc_us);
122	for (i = 0; i < len; i++) {
123		printf(" %02x", data[i]);
124	}
125	printf("\n");
126#endif
127	k = data[2];
128	scancode = ADBK_KEYVAL(k);
129	if ((scancode < 6) || (scancode > 0x0c))
130		return;
131
132	if (ADBK_PRESS(k)) {
133
134		switch (scancode) {
135			case BT_VOL_UP:
136				pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_UP);
137				break;
138			case BT_VOL_DOWN:
139				pmf_event_inject(NULL, PMFE_AUDIO_VOLUME_DOWN);
140				break;
141			case BT_VOL_MUTE:
142				pmf_event_inject(NULL,
143				    PMFE_AUDIO_VOLUME_TOGGLE);
144				break;
145			case BT_BRT_UP:
146				pmf_event_inject(NULL,
147				    PMFE_DISPLAY_BRIGHTNESS_UP);
148				break;
149			case BT_BRT_DOWN:
150				pmf_event_inject(NULL,
151				    PMFE_DISPLAY_BRIGHTNESS_DOWN);
152				break;
153		}
154	}
155}
156