ms_ap.c revision 1.1 
1/*	$NetBSD: ms_ap.c,v 1.1 2000/11/15 14:04:05 tsubai Exp $	*/
2
3/*-
4 * Copyright (c) 2000 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
29#include <sys/param.h>
30#include <sys/device.h>
31#include <sys/systm.h>
32
33#include <dev/wscons/wsconsio.h>
34#include <dev/wscons/wsmousevar.h>
35
36#include <machine/adrsmap.h>
37#include <newsmips/apbus/apbusvar.h>
38
39struct msreg {
40	u_int ms_data;
41	u_int ms_stat;
42	u_int ms_intr_en;
43	u_int ms_reset;
44	u_int ms_speed;
45};
46
47struct ms_ap_softc {
48	struct device sc_dev;
49	volatile struct msreg *sc_reg;
50	struct device *sc_wsmousedev;
51	int sc_ndata;
52	u_char sc_buf[3];
53};
54
55int ms_ap_match(struct device *, struct cfdata *, void *);
56void ms_ap_attach(struct device *, struct device *, void *);
57int ms_ap_intr(void *);
58
59int ms_ap_enable(void *);
60int ms_ap_ioctl(void *, u_long, caddr_t, int, struct proc *);
61void ms_ap_disable(void *);
62
63struct cfattach ms_ap_ca = {
64	sizeof(struct ms_ap_softc), ms_ap_match, ms_ap_attach
65};
66
67struct wsmouse_accessops ms_ap_accessops = {
68	ms_ap_enable,
69	ms_ap_ioctl,
70	ms_ap_disable
71};
72
73int
74ms_ap_match(parent, cf, aux)
75	struct device *parent;
76	struct cfdata *cf;
77	void *aux;
78{
79	struct apbus_attach_args *apa = aux;
80
81	if (strcmp(apa->apa_name, "ms") == 0)
82		return 1;
83
84	return 0;
85}
86
87void
88ms_ap_attach(parent, self, aux)
89	struct device *parent, *self;
90	void *aux;
91{
92	struct ms_ap_softc *sc = (void *)self;
93	struct apbus_attach_args *apa = aux;
94	volatile struct msreg *reg = (void *)apa->apa_hwbase;
95	struct wsmousedev_attach_args aa;
96
97	printf(" slot%d addr 0x%lx\n", apa->apa_slotno, apa->apa_hwbase);
98
99	sc->sc_reg = reg;
100
101	reg->ms_reset = 0x03;
102	reg->ms_speed = 0x01;
103	reg->ms_intr_en = 0;
104
105	apbus_intr_establish(1, NEWS5000_INT1_KBD, 0, ms_ap_intr, sc,
106	    "", apa->apa_ctlnum);
107
108	aa.accessops = &ms_ap_accessops;
109	aa.accesscookie = sc;
110	sc->sc_wsmousedev = config_found(self, &aa, wsmousedevprint);
111}
112
113int
114ms_ap_intr(v)
115	void *v;
116{
117	struct ms_ap_softc *sc = v;
118	volatile struct msreg *reg = sc->sc_reg;
119	int code, index, byte0, byte1, byte2;
120	int button, dx, dy;
121	int rv = 0;
122
123	reg->ms_intr_en = 0;
124
125	while (reg->ms_stat & RX_MSRDY) {
126		rv = 1;
127		code = reg->ms_data;
128		index = sc->sc_ndata;
129
130		if (sc->sc_wsmousedev == NULL)
131			continue;
132
133		if (code & 0x80) {
134			sc->sc_buf[0] = code;
135			sc->sc_ndata = 1;
136			continue;
137		}
138
139		if (index == 1) {
140			sc->sc_buf[1] = code;
141			sc->sc_ndata++;
142			continue;
143		}
144
145		if (index == 2) {
146			sc->sc_buf[2] = code;
147			sc->sc_ndata++;
148
149			byte0 = sc->sc_buf[0];
150			byte1 = sc->sc_buf[1];
151			byte2 = sc->sc_buf[2];
152
153			button = 0;
154			if (byte0 & 0x01)
155				button |= 1;
156			if (byte0 & 0x04)
157				button |= 2;
158			if (byte0 & 0x02)
159				button |= 4;
160
161			if (byte0 & 0x08)
162				dx = byte1 - 0x80;
163			else
164				dx = byte1;
165			if (byte0 & 0x10)
166				dy = byte2 - 0x80;
167			else
168				dy = byte2;
169
170			wsmouse_input(sc->sc_wsmousedev, button, dx, -dy, 0,
171			    WSMOUSE_INPUT_DELTA);
172		}
173	}
174
175	reg->ms_intr_en = 1;
176	return rv;
177}
178
179int
180ms_ap_enable(v)
181	void *v;
182{
183	struct ms_ap_softc *sc = v;
184	volatile struct msreg *reg = sc->sc_reg;
185
186	reg->ms_intr_en = 1;
187	return 0;
188}
189
190void
191ms_ap_disable(v)
192	void *v;
193{
194	struct ms_ap_softc *sc = v;
195	volatile struct msreg *reg = sc->sc_reg;
196
197	reg->ms_intr_en = 0;
198}
199
200int
201ms_ap_ioctl(v, cmd, data, flag, p)
202	void *v;
203	u_long cmd;
204	caddr_t data;
205	int flag;
206	struct proc *p;
207{
208	return -1;
209}
210