NetBSD-5.0.2/sys/dev/dec/dzms.c
/* $NetBSD: dzms.c,v 1.17 2007/10/19 11:59:40 ad Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)ms.c 8.1 (Berkeley) 6/11/93
*/
/*
* VSXXX mice attached to line 1 of the DZ*
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: dzms.c,v 1.17 2007/10/19 11:59:40 ad Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/tty.h>
#include <sys/bus.h>
#include <dev/dec/dzreg.h>
#include <dev/dec/dzvar.h>
#include <dev/dec/dzkbdvar.h>
#include <dev/dec/lk201.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsmousevar.h>
#include "locators.h"
struct dzms_softc { /* driver status information */
struct device dzms_dev; /* required first: base device */
struct dz_linestate *dzms_ls;
int sc_enabled; /* input enabled? */
int sc_selftest;
int inputstate;
u_int buttons;
int dx, dy;
struct device *sc_wsmousedev;
};
static int dzms_match(struct device *, struct cfdata *, void *);
static void dzms_attach(struct device *, struct device *, void *);
static int dzms_input(void *, int);
CFATTACH_DECL(dzms, sizeof(struct dzms_softc),
dzms_match, dzms_attach, NULL, NULL);
static int dzms_enable(void *);
static int dzms_ioctl(void *, u_long, void *, int, struct lwp *);
static void dzms_disable(void *);
const struct wsmouse_accessops dzms_accessops = {
dzms_enable,
dzms_ioctl,
dzms_disable,
};
static int
dzms_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct dzkm_attach_args *daa = aux;
/* Exact match is better than wildcard. */
if (cf->cf_loc[DZCF_LINE] == daa->daa_line)
return 2;
/* This driver accepts wildcard. */
if (cf->cf_loc[DZCF_LINE] == DZCF_LINE_DEFAULT)
return 1;
return 0;
}
static void
dzms_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct dz_softc *dz = device_private(parent);
struct dzms_softc *dzms = device_private(self);
struct dzkm_attach_args *daa = aux;
struct dz_linestate *ls;
struct wsmousedev_attach_args a;
dz->sc_dz[daa->daa_line].dz_catch = dzms_input;
dz->sc_dz[daa->daa_line].dz_private = dzms;
ls = &dz->sc_dz[daa->daa_line];
dzms->dzms_ls = ls;
printf("\n");
a.accessops = &dzms_accessops;
a.accesscookie = dzms;
dzms->sc_enabled = 0;
dzms->sc_selftest = 0;
dzms->sc_wsmousedev = config_found(self, &a, wsmousedevprint);
}
static int
dzms_enable(v)
void *v;
{
struct dzms_softc *sc = v;
if (sc->sc_enabled)
return EBUSY;
sc->sc_selftest = 4; /* wait for 4 byte reply upto 1/2 sec */
dzputc(sc->dzms_ls, MOUSE_SELF_TEST);
(void)tsleep(dzms_enable, TTIPRI, "dzmsopen", hz / 2);
if (sc->sc_selftest != 0) {
sc->sc_selftest = 0;
return ENXIO;
}
DELAY(150);
dzputc(sc->dzms_ls, MOUSE_INCREMENTAL);
sc->sc_enabled = 1;
sc->inputstate = 0;
return 0;
}
static void
dzms_disable(v)
void *v;
{
struct dzms_softc *sc = v;
sc->sc_enabled = 0;
}
static int
dzms_ioctl(v, cmd, data, flag, l)
void *v;
u_long cmd;
void *data;
int flag;
struct lwp *l;
{
if (cmd == WSMOUSEIO_GTYPE) {
*(u_int *)data = WSMOUSE_TYPE_VSXXX;
return 0;
}
return EPASSTHROUGH;
}
static int
dzms_input(vsc, data)
void *vsc;
int data;
{
struct dzms_softc *sc = vsc;
if (sc->sc_enabled == 0) {
if (sc->sc_selftest > 0) {
sc->sc_selftest -= 1;
if (sc->sc_selftest == 0)
wakeup(dzms_enable);
}
return (1);
}
#define WSMS_BUTTON1 0x01
#define WSMS_BUTTON2 0x02
#define WSMS_BUTTON3 0x04
if ((data & MOUSE_START_FRAME) != 0)
sc->inputstate = 1;
else
sc->inputstate++;
if (sc->inputstate == 1) {
sc->buttons = 0;
if ((data & LEFT_BUTTON) != 0)
sc->buttons |= WSMS_BUTTON1;
if ((data & MIDDLE_BUTTON) != 0)
sc->buttons |= WSMS_BUTTON2;
if ((data & RIGHT_BUTTON) != 0)
sc->buttons |= WSMS_BUTTON3;
sc->dx = data & MOUSE_X_SIGN;
sc->dy = data & MOUSE_Y_SIGN;
} else if (sc->inputstate == 2) {
if (sc->dx == 0)
sc->dx = -data;
else
sc->dx = data;
} else if (sc->inputstate == 3) {
sc->inputstate = 0;
if (sc->dy == 0)
sc->dy = -data;
else
sc->dy = data;
wsmouse_input(sc->sc_wsmousedev,
sc->buttons,
sc->dx, sc->dy, 0, 0,
WSMOUSE_INPUT_DELTA);
}
return(1);
}