xref: /netbsd-src/sys/dev/dec/dzms.c (revision 14b54388daabe937cf98c1deb6633184f7eb848a)
1 /*	$NetBSD: dzms.c,v 1.25 2024/02/02 15:44:43 tsutsui Exp $	*/
2 
3 /*
4  * Copyright (c) 1992, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This software was developed by the Computer Systems Engineering group
8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
9  * contributed to Berkeley.
10  *
11  * All advertising materials mentioning features or use of this software
12  * must display the following acknowledgement:
13  *	This product includes software developed by the University of
14  *	California, Lawrence Berkeley Laboratory.
15  *
16  * Redistribution and use in source and binary forms, with or without
17  * modification, are permitted provided that the following conditions
18  * are met:
19  * 1. Redistributions of source code must retain the above copyright
20  *    notice, this list of conditions and the following disclaimer.
21  * 2. Redistributions in binary form must reproduce the above copyright
22  *    notice, this list of conditions and the following disclaimer in the
23  *    documentation and/or other materials provided with the distribution.
24  * 3. Neither the name of the University nor the names of its contributors
25  *    may be used to endorse or promote products derived from this software
26  *    without specific prior written permission.
27  *
28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38  * SUCH DAMAGE.
39  *
40  *	@(#)ms.c	8.1 (Berkeley) 6/11/93
41  */
42 
43 /*
44  * VSXXX mice attached to line 1 of the DZ*
45  */
46 
47 #include <sys/cdefs.h>
48 __KERNEL_RCSID(0, "$NetBSD: dzms.c,v 1.25 2024/02/02 15:44:43 tsutsui Exp $");
49 
50 #include <sys/param.h>
51 #include <sys/systm.h>
52 #include <sys/device.h>
53 #include <sys/ioctl.h>
54 #include <sys/syslog.h>
55 #include <sys/kernel.h>
56 #include <sys/proc.h>
57 #include <sys/tty.h>
58 
59 #include <sys/bus.h>
60 
61 #include <dev/dec/dzreg.h>
62 #include <dev/dec/dzvar.h>
63 #include <dev/dec/dzkbdvar.h>
64 #include <dev/dec/lk201.h>
65 
66 #include <dev/wscons/wsconsio.h>
67 #include <dev/wscons/wsmousevar.h>
68 
69 #include "locators.h"
70 
71 struct dzms_softc {		/* driver status information */
72 	struct	dz_linestate *dzms_ls;
73 
74 	int sc_enabled;		/* input enabled? */
75 	int sc_selftest;
76 
77 	int inputstate;
78 	u_int buttons;
79 	int dx, dy;
80 
81 	device_t sc_wsmousedev;
82 };
83 
84 static int  dzms_match(device_t, cfdata_t, void *);
85 static void dzms_attach(device_t, device_t, void *);
86 static int dzms_input(void *, int);
87 
88 CFATTACH_DECL_NEW(dzms, sizeof(struct dzms_softc),
89     dzms_match, dzms_attach, NULL, NULL);
90 
91 static int  dzms_enable(void *);
92 static int  dzms_ioctl(void *, u_long, void *, int, struct lwp *);
93 static void dzms_disable(void *);
94 
95 const struct wsmouse_accessops dzms_accessops = {
96 	dzms_enable,
97 	dzms_ioctl,
98 	dzms_disable,
99 };
100 
101 static int
dzms_match(device_t parent,cfdata_t cf,void * aux)102 dzms_match(device_t parent, cfdata_t cf, void *aux)
103 {
104 	struct dzkm_attach_args *daa = aux;
105 
106 	/* Exact match is better than wildcard. */
107 	if (cf->cf_loc[DZCF_LINE] == daa->daa_line)
108 		return 2;
109 
110 	/* This driver accepts wildcard. */
111 	if (cf->cf_loc[DZCF_LINE] == DZCF_LINE_DEFAULT)
112 		return 1;
113 
114 	return 0;
115 }
116 
117 static void
dzms_attach(device_t parent,device_t self,void * aux)118 dzms_attach(device_t parent, device_t self, void *aux)
119 {
120 	struct dz_softc *dz = device_private(parent);
121 	struct dzms_softc *dzms = device_private(self);
122 	struct dzkm_attach_args *daa = aux;
123 	struct dz_linestate *ls;
124 	struct wsmousedev_attach_args a;
125 
126 	dz->sc_dz[daa->daa_line].dz_catch = dzms_input;
127 	dz->sc_dz[daa->daa_line].dz_private = dzms;
128 	ls = &dz->sc_dz[daa->daa_line];
129 	dzms->dzms_ls = ls;
130 
131 	aprint_normal("\n");
132 
133 	a.accessops = &dzms_accessops;
134 	a.accesscookie = dzms;
135 
136 	dzms->sc_enabled = 0;
137 	dzms->sc_selftest = 0;
138 	dzms->sc_wsmousedev = config_found(self, &a, wsmousedevprint,
139 	    CFARGS_NONE);
140 }
141 
142 static int
dzms_enable(void * v)143 dzms_enable(void *v)
144 {
145 	struct dzms_softc *sc = v;
146 
147 	if (sc->sc_enabled)
148 		return EBUSY;
149 
150 	sc->sc_selftest = 4; /* wait for 4 byte reply upto 1/2 sec */
151 	dzputc(sc->dzms_ls, MOUSE_SELF_TEST);
152 	(void)tsleep(dzms_enable, TTIPRI, "dzmsopen", hz / 2);
153 	if (sc->sc_selftest != 0) {
154 		sc->sc_selftest = 0;
155 		return ENXIO;
156 	}
157 	DELAY(150);
158 	dzputc(sc->dzms_ls, MOUSE_INCREMENTAL);
159 	sc->sc_enabled = 1;
160 	sc->inputstate = 0;
161 	return 0;
162 }
163 
164 static void
dzms_disable(void * v)165 dzms_disable(void *v)
166 {
167 	struct dzms_softc *sc = v;
168 
169 	sc->sc_enabled = 0;
170 }
171 
172 static int
dzms_ioctl(void * v,u_long cmd,void * data,int flag,struct lwp * l)173 dzms_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
174 {
175 	if (cmd == WSMOUSEIO_GTYPE) {
176 		*(u_int *)data = WSMOUSE_TYPE_VSXXX;
177 		return 0;
178 	}
179 	return EPASSTHROUGH;
180 }
181 
182 static int
dzms_input(void * vsc,int data)183 dzms_input(void *vsc, int data)
184 {
185 	struct dzms_softc *sc = vsc;
186 
187 	if (sc->sc_enabled == 0) {
188 		if (sc->sc_selftest > 0) {
189 			sc->sc_selftest -= 1;
190 			if (sc->sc_selftest == 0)
191 				wakeup(dzms_enable);
192 		}
193 		return (1);
194 	}
195 
196 #define WSMS_BUTTON1    0x01
197 #define WSMS_BUTTON2    0x02
198 #define WSMS_BUTTON3    0x04
199 
200 	if ((data & MOUSE_START_FRAME) != 0)
201 		sc->inputstate = 1;
202 	else
203 		sc->inputstate++;
204 
205 	if (sc->inputstate == 1) {
206 		sc->buttons = 0;
207 		if ((data & LEFT_BUTTON) != 0)
208 			sc->buttons |= WSMS_BUTTON1;
209 		if ((data & MIDDLE_BUTTON) != 0)
210 			sc->buttons |= WSMS_BUTTON2;
211 		if ((data & RIGHT_BUTTON) != 0)
212 			sc->buttons |= WSMS_BUTTON3;
213 
214 		sc->dx = data & MOUSE_X_SIGN;
215 		sc->dy = data & MOUSE_Y_SIGN;
216 	} else if (sc->inputstate == 2) {
217 		if (sc->dx == 0)
218 			sc->dx = -data;
219 		else
220 			sc->dx = data;
221 	} else if (sc->inputstate == 3) {
222 		sc->inputstate = 0;
223 		if (sc->dy == 0)
224 			sc->dy = -data;
225 		else
226 			sc->dy = data;
227 		wsmouse_input(sc->sc_wsmousedev,
228 				sc->buttons,
229 		    		sc->dx, sc->dy, 0, 0,
230 				WSMOUSE_INPUT_DELTA);
231 	}
232 
233 	return(1);
234 }
235 
236