NetBSD/sys/dev/dec/vsxxx.c

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/* $NetBSD: vsxxx.c,v 1.2 2000/01/08 02:57:22 takemura Exp $ */
/*
* Copyright (c) 1999 Tohru Nishimura. All rights reserved.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Tohru Nishimura.
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: vsxxx.c,v 1.2 2000/01/08 02:57:22 takemura 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>
/*
* 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
extern struct cfdriver vsms_cd;
static int vsxxx_enable __P((void *));
static int vsxxx_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
static void vsxxx_disable __P((void *));
struct wsmouse_accessops vsxxx_accessops = { /* EXPORT */
vsxxx_enable, /* MD? */
vsxxx_ioctl,
vsxxx_disable, /* MD? */
};
static int
vsxxx_enable(v)
void *v;
{
/* turn on the hardware? */
((struct vsxxx_softc *)v)->sc_nbyte = 0;
return 0;
}
static void
vsxxx_disable(v)
void *v;
{
/* turn off the hardware? */
}
/*ARGUSED*/
static int
vsxxx_ioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
if (cmd == WSMOUSEIO_GTYPE) {
*(u_int *)data = WSMOUSE_TYPE_VSXXX;
return 0;
}
return ENOTTY;
}
/* EXPORT */ void
vsxxx_input(data)
int data;
{
struct vsxxx_softc *sc = (void *)vsms_cd.cd_devs[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,
WSMOUSE_INPUT_DELTA);
}