NetBSD/sys/dev/dec/vsxxx.c

139 lines
3.6 KiB
C

/* $NetBSD: vsxxx.c,v 1.12 2017/10/28 04:53:54 riastradh Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Tohru Nishimura.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vsxxx.c,v 1.12 2017/10/28 04:53:54 riastradh Exp $");
/*
* Common machinary for VSXXX mice and tablet
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsmousevar.h>
#include <dev/dec/vsxxxvar.h>
#include "ioconf.h"
/*
* XXX XXX XXX
*
* collect various mice and tablet parameters/protocol design
* and establish vsxxx.h
*
* XXX XXX XXX
*/
#define VS_SELFTEST 'T'
#define VS_INCREMENTAL 'R'
#define VS_PROMPTING 'D'
#define VS_REQ_POSITION 'P'
#define VS_MOUSE_REPSZ 3
#define VS_TABLET_REPSZ 5
/* first octet */
#define VS_START_FRAME 0x80
#define VS_R_BUTTON 0x01
#define VS_M_BUTTON 0x02
#define VS_L_BUTTON 0x04
#define VS_Y_SIGN 0x08
#define VS_X_SIGN 0x10
/* low order 4 bit of the second octet in a SELFTEST reply */
#define VS_MOUSE 0x2
#define VS_TABLET 0x4
static int vsxxx_enable(void *);
static int vsxxx_ioctl(void *, u_long, void *, int, struct proc *);
static void vsxxx_disable(void *);
struct wsmouse_accessops vsxxx_accessops = { /* EXPORT */
vsxxx_enable, /* MD? */
vsxxx_ioctl,
vsxxx_disable, /* MD? */
};
static int
vsxxx_enable(void *v)
{
/* turn on the hardware? */
((struct vsxxx_softc *)v)->sc_nbyte = 0;
return 0;
}
static void
vsxxx_disable(void *v)
{
/* turn off the hardware? */
}
/*ARGUSED*/
static int
vsxxx_ioctl(void *v, u_long cmd, void *data, int flag, struct proc *p)
{
if (cmd == WSMOUSEIO_GTYPE) {
*(u_int *)data = WSMOUSE_TYPE_VSXXX;
return 0;
}
return EPASSTHROUGH;
}
/* EXPORT */ void
vsxxx_input(int data)
{
struct vsxxx_softc *sc = device_lookup_private(&vsms_cd, 0);
int x, y;
if (data & VS_START_FRAME)
sc->sc_nbyte = 0;
sc->sc_report.raw[sc->sc_nbyte++] = data;
if (sc->sc_nbyte < VS_MOUSE_REPSZ)
return;
sc->sc_nbyte = 0;
x = sc->sc_report.ms.xpos;
y = sc->sc_report.ms.ypos;
if ((sc->sc_report.raw[0] & VS_X_SIGN) == 0)
x = -x;
if ((sc->sc_report.raw[0] & VS_Y_SIGN) != 0)
y = -y; /* Eeeh? */
wsmouse_input(sc->sc_wsmousedev,
sc->sc_report.raw[0] & 07,
x, y, 0, 0,
WSMOUSE_INPUT_DELTA);
}