NetBSD/sys/arch/arm32/dev/wsqms.c

190 lines
5.0 KiB
C

/* $NetBSD: wsqms.c,v 1.2 2001/11/27 01:06:28 thorpej Exp $ */
/*-
* Copyright (c) 2001 Reinoud Zandijk
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Reinoud Zandijk
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 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.
*
*
* Quadratic mouse driver for the wscons as used in the IOMD but is in
* principle more generic.
*
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/syslog.h>
#include <sys/systm.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsmousevar.h>
#include <arch/arm32/dev/wsqmsvar.h>
/* Offsets of hardware registers */
#define QMS_MOUSEX 0 /* 16 bits X register */
#define QMS_MOUSEY 1 /* 16 bits Y register */
#define QMS_BUTTONS 0 /* mouse buttons in bits 4,5,6 */
#define MAX_XYREG 4096
/* forward declarations */
static int wsqms_enable __P((void *cookie));
static int wsqms_ioctl __P((void *cookie, u_long cmd, caddr_t data, int flag, struct proc *p));
static void wsqms_disable __P((void *cookie));
static struct wsmouse_accessops wsqms_accessops = {
wsqms_enable, wsqms_ioctl, wsqms_disable
};
void
wsqms_attach(sc, self)
struct wsqms_softc *sc;
struct device *self;
{
struct wsmousedev_attach_args wsmouseargs;
/* set up wsmouse attach arguments */
wsmouseargs.accessops = &wsqms_accessops;
wsmouseargs.accesscookie = self;
printf("\n");
sc->sc_wsmousedev = config_found(self, &wsmouseargs, wsmousedevprint);
}
static int
wsqms_enable(cookie)
void *cookie;
{
struct wsqms_softc *sc = cookie;
sc->sc_flags |= WSQMS_ENABLED;
/* enable interrupts */
sc->sc_intenable(sc, 1);
return 0;
}
static void
wsqms_disable(cookie)
void *cookie;
{
struct wsqms_softc *sc = cookie;
sc->sc_flags &= ~WSQMS_ENABLED;
/* disable interrupts */
sc->sc_intenable(sc, 0);
}
static int
wsqms_ioctl(cookie, cmd, data, flag, p)
void *cookie;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
switch (cmd) {
case WSMOUSEIO_GTYPE:
*(int *)data = WSMOUSE_TYPE_ARCHIMEDES;
return 0;
}
return -1;
}
/* We can really put in the mouse XY as absolutes ? */
int
wsqms_intr(arg)
void *arg;
{
struct wsqms_softc *sc = arg;
int x, y, b;
x = bus_space_read_4(sc->sc_iot, sc->sc_ioh, QMS_MOUSEX) & 0xffff;
y = bus_space_read_4(sc->sc_iot, sc->sc_ioh, QMS_MOUSEY) & 0xffff;
b = bus_space_read_1(sc->sc_iot, sc->sc_butioh, QMS_BUTTONS) & 0x70;
b >>= 4;
if (x & 0x8000) x |= 0xffff0000;
if (y & 0x8000) y |= 0xffff0000;
/* patch up the buttons */
b = ~( ((b & 1)<<2) | (b & 2) | ((b & 4)>>2));
if ((x != sc->lastx) || (y != sc->lasty) || (b != sc->lastb)) {
/* save old values */
sc->lastx = x;
sc->lasty = y;
sc->lastb = b;
/* do we have to bound x and y ? => yes */
if (x < -MAX_XYREG) x = -MAX_XYREG;
if (x > MAX_XYREG) x = MAX_XYREG;
if (y < -MAX_XYREG) y = -MAX_XYREG;
if (y > MAX_XYREG) y = MAX_XYREG;
/* write the bounded values back */
bus_space_write_4(sc->sc_iot, sc->sc_ioh, QMS_MOUSEX, x);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, QMS_MOUSEY, y);
wsmouse_input(sc->sc_wsmousedev, b, x, y, 0,
WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
};
return (0); /* pass on */
}
/* end of wsqms.c */