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      1 /*	$NetBSD: dtms.c,v 1.13 2021/08/07 16:19:02 thorpej 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: dtms.c,v 1.13 2021/08/07 16:19:02 thorpej Exp $");
     34 
     35 #include "locators.h"
     36 
     37 #include <sys/param.h>
     38 #include <sys/bus.h>
     39 #include <sys/device.h>
     40 #include <sys/ioctl.h>
     41 #include <sys/syslog.h>
     42 #include <sys/systm.h>
     43 
     44 #include <pmax/tc/dtreg.h>
     45 #include <pmax/tc/dtvar.h>
     46 
     47 #include <dev/wscons/wsconsio.h>
     48 #include <dev/wscons/wsmousevar.h>
     49 
     50 struct dtms_softc {
     51 	device_t	sc_dev;
     52 	device_t	sc_wsmousedev;
     53 	int		sc_enabled;
     54 };
     55 
     56 int	dtms_match(device_t, cfdata_t, void *);
     57 void	dtms_attach(device_t, device_t, void *);
     58 int	dtms_input(void *, int);
     59 int	dtms_enable(void *);
     60 int	dtms_ioctl(void *, u_long, void *, int, struct lwp *);
     61 void	dtms_disable(void *);
     62 void	dtms_handler(void *, struct dt_msg *);
     63 
     64 CFATTACH_DECL_NEW(dtms, sizeof(struct dtms_softc),
     65     dtms_match, dtms_attach, NULL, NULL);
     66 
     67 const struct wsmouse_accessops dtms_accessops = {
     68 	dtms_enable,
     69 	dtms_ioctl,
     70 	dtms_disable,
     71 };
     72 
     73 int
     74 dtms_match(device_t parent, cfdata_t cf, void *aux)
     75 {
     76 	struct dt_attach_args *dta;
     77 
     78 	dta = aux;
     79 	return (dta->dta_addr == DT_ADDR_MOUSE);
     80 }
     81 
     82 void
     83 dtms_attach(device_t parent, device_t self, void *aux)
     84 {
     85 	struct wsmousedev_attach_args a;
     86 	struct dtms_softc *sc;
     87 	struct dt_softc *dt;
     88 
     89 	dt = device_private(parent);
     90 	sc = device_private(self);
     91 	sc->sc_dev = self;
     92 
     93 	printf("\n");
     94 
     95 	if (dt_establish_handler(dt, &dt_ms_dv, sc, dtms_handler)) {
     96 		printf("%s: unable to establish handler\n", device_xname(self));
     97 		return;
     98 	}
     99 
    100 	a.accessops = &dtms_accessops;
    101 	a.accesscookie = sc;
    102 	sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint, CFARGS_NONE);
    103 }
    104 
    105 int
    106 dtms_enable(void *cookie)
    107 {
    108 	struct dtms_softc *sc;
    109 
    110 	sc = cookie;
    111 	if (sc->sc_enabled)
    112 		return (EBUSY);
    113 	sc->sc_enabled = 1;
    114 
    115 	return (0);
    116 }
    117 
    118 void
    119 dtms_disable(void *cookie)
    120 {
    121 	struct dtms_softc *sc;
    122 
    123 	sc = cookie;
    124 	sc->sc_enabled = 0;
    125 }
    126 
    127 int
    128 dtms_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
    129 {
    130 
    131 	if (cmd == WSMOUSEIO_GTYPE) {
    132 		*(u_int *)data = WSMOUSE_TYPE_VSXXX;
    133 		return (0);
    134 	}
    135 
    136 	return (EPASSTHROUGH);
    137 }
    138 
    139 void
    140 dtms_handler(void *cookie, struct dt_msg *msg)
    141 {
    142 	struct dtms_softc *sc;
    143 	int buttons, dx, dy;
    144 	short tmp;
    145 
    146 	sc = cookie;
    147 
    148 	if (!sc->sc_enabled)
    149 		return;
    150 
    151 	tmp = DT_GET_SHORT(msg->body[0], msg->body[1]);
    152 	buttons = tmp & 1;
    153 	if (tmp & 2)
    154 		buttons |= 4;
    155 	if (tmp & 4)
    156 		buttons |= 2;
    157 
    158 	tmp = DT_GET_SHORT(msg->body[2], msg->body[3]);
    159 	if (tmp < 0)
    160 		dx = -(-tmp & 0x1f);
    161 	else
    162 		dx = tmp & 0x1f;
    163 
    164 	tmp = DT_GET_SHORT(msg->body[4], msg->body[5]);
    165 	if (tmp < 0)
    166 		dy = -(-tmp & 0x1f);
    167 	else
    168 		dy = tmp & 0x1f;
    169 
    170 	wsmouse_input(sc->sc_wsmousedev,
    171 			buttons,
    172 			dx, dy, 0, 0,
    173 			WSMOUSE_INPUT_DELTA);
    174 }
    175