dtms.c revision 1.3 
1/*	$NetBSD: dtms.c,v 1.3 2003/12/23 09:39:46 ad Exp $	*/
2
3/*-
4 * Copyright (c) 2002, 2003 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Doran.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#include <sys/cdefs.h>
40__KERNEL_RCSID(0, "$NetBSD: dtms.c,v 1.3 2003/12/23 09:39:46 ad Exp $");
41
42#include "locators.h"
43
44#include <sys/param.h>
45#include <sys/systm.h>
46#include <sys/device.h>
47#include <sys/ioctl.h>
48#include <sys/syslog.h>
49
50#include <machine/bus.h>
51
52#include <arch/pmax/tc/dtreg.h>
53#include <arch/pmax/tc/dtvar.h>
54
55#include <dev/wscons/wsconsio.h>
56#include <dev/wscons/wsmousevar.h>
57
58struct dtms_softc {
59	struct device	sc_dv;
60	struct device	*sc_wsmousedev;
61	int		sc_enabled;
62};
63
64int	dtms_match(struct device *, struct cfdata *, void *);
65void	dtms_attach(struct device *, struct device *, void *);
66int	dtms_input(void *, int);
67int	dtms_enable(void *);
68int	dtms_ioctl(void *, u_long, caddr_t, int, struct proc *);
69void	dtms_disable(void *);
70void	dtms_handler(void *, struct dt_msg *);
71
72CFATTACH_DECL(dtms, sizeof(struct dtms_softc),
73    dtms_match, dtms_attach, NULL, NULL);
74
75const struct wsmouse_accessops dtms_accessops = {
76	dtms_enable,
77	dtms_ioctl,
78	dtms_disable,
79};
80
81int
82dtms_match(struct device *parent, struct cfdata *cf, void *aux)
83{
84	struct dt_attach_args *dta;
85
86	dta = aux;
87	return (dta->dta_addr == DT_ADDR_MOUSE);
88}
89
90void
91dtms_attach(struct device *parent, struct device *self, void *aux)
92{
93	struct wsmousedev_attach_args a;
94	struct dtms_softc *sc;
95	struct dt_softc *dt;
96
97	dt = (struct dt_softc *)parent;
98	sc = (struct dtms_softc *)self;
99
100	printf("\n");
101
102	if (dt_establish_handler(dt, &dt_ms_dv, self, dtms_handler)) {
103		printf("%s: unable to establish handler\n", self->dv_xname);
104		return;
105	}
106
107	a.accessops = &dtms_accessops;
108	a.accesscookie = sc;
109	sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint);
110}
111
112int
113dtms_enable(void *cookie)
114{
115	struct dtms_softc *sc;
116
117	sc = cookie;
118	if (sc->sc_enabled)
119		return (EBUSY);
120	sc->sc_enabled = 1;
121
122	return (0);
123}
124
125void
126dtms_disable(void *cookie)
127{
128	struct dtms_softc *sc;
129
130	sc = cookie;
131	sc->sc_enabled = 0;
132}
133
134int
135dtms_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
136{
137
138	if (cmd == WSMOUSEIO_GTYPE) {
139		*(u_int *)data = WSMOUSE_TYPE_VSXXX;
140		return (0);
141	}
142
143	return (-1);
144}
145
146void
147dtms_handler(void *cookie, struct dt_msg *msg)
148{
149	struct dtms_softc *sc;
150	int buttons, dx, dy, tmp;
151
152	sc = cookie;
153
154	if (!sc->sc_enabled)
155		return;
156
157	tmp = DT_GET_SHORT(msg->body[0], msg->body[1]);
158	buttons = ((tmp >> 1) & 0x3) | ((tmp << 2) & 0x4);
159
160	tmp = DT_GET_SHORT(msg->body[2], msg->body[3]);
161	if (tmp < 0)
162		dx = -(-tmp & 0x1f);
163	else
164		dx = tmp & 0x1f;
165
166	tmp = DT_GET_SHORT(msg->body[4], msg->body[5]);
167	if (tmp < 0)
168		dy = -(-tmp & 0x1f);
169	else
170		dy = tmp & 0x1f;
171
172	wsmouse_input(sc->sc_wsmousedev, buttons, dx, dy, 0,
173	    WSMOUSE_INPUT_DELTA);
174}
175