190 lines
5.0 KiB
C
190 lines
5.0 KiB
C
/* $NetBSD: wsqms.c,v 1.2 2001/11/27 01:03:53 thorpej Exp $ */
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/*-
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* Copyright (c) 2001 Reinoud Zandijk
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Reinoud Zandijk
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*
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* Quadratic mouse driver for the wscons as used in the IOMD but is in
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* principle more generic.
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*
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*/
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/syslog.h>
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#include <sys/systm.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsksymdef.h>
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#include <dev/wscons/wsmousevar.h>
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#include <arm/iomd/wsqmsvar.h>
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/* Offsets of hardware registers */
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#define QMS_MOUSEX 0 /* 16 bits X register */
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#define QMS_MOUSEY 1 /* 16 bits Y register */
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#define QMS_BUTTONS 0 /* mouse buttons in bits 4,5,6 */
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#define MAX_XYREG 4096
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/* forward declarations */
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static int wsqms_enable __P((void *cookie));
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static int wsqms_ioctl __P((void *cookie, u_long cmd, caddr_t data, int flag, struct proc *p));
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static void wsqms_disable __P((void *cookie));
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static struct wsmouse_accessops wsqms_accessops = {
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wsqms_enable, wsqms_ioctl, wsqms_disable
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};
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void
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wsqms_attach(sc, self)
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struct wsqms_softc *sc;
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struct device *self;
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{
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struct wsmousedev_attach_args wsmouseargs;
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/* set up wsmouse attach arguments */
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wsmouseargs.accessops = &wsqms_accessops;
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wsmouseargs.accesscookie = self;
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printf("\n");
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sc->sc_wsmousedev = config_found(self, &wsmouseargs, wsmousedevprint);
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}
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static int
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wsqms_enable(cookie)
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void *cookie;
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{
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struct wsqms_softc *sc = cookie;
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sc->sc_flags |= WSQMS_ENABLED;
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/* enable interrupts */
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sc->sc_intenable(sc, 1);
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return 0;
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}
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static void
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wsqms_disable(cookie)
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void *cookie;
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{
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struct wsqms_softc *sc = cookie;
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sc->sc_flags &= ~WSQMS_ENABLED;
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/* disable interrupts */
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sc->sc_intenable(sc, 0);
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}
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static int
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wsqms_ioctl(cookie, cmd, data, flag, p)
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void *cookie;
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u_long cmd;
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caddr_t data;
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int flag;
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struct proc *p;
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{
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switch (cmd) {
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case WSMOUSEIO_GTYPE:
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*(int *)data = WSMOUSE_TYPE_ARCHIMEDES;
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return 0;
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}
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return -1;
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}
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/* We can really put in the mouse XY as absolutes ? */
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int
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wsqms_intr(arg)
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void *arg;
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{
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struct wsqms_softc *sc = arg;
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int x, y, b;
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x = bus_space_read_4(sc->sc_iot, sc->sc_ioh, QMS_MOUSEX) & 0xffff;
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y = bus_space_read_4(sc->sc_iot, sc->sc_ioh, QMS_MOUSEY) & 0xffff;
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b = bus_space_read_1(sc->sc_iot, sc->sc_butioh, QMS_BUTTONS) & 0x70;
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b >>= 4;
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if (x & 0x8000) x |= 0xffff0000;
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if (y & 0x8000) y |= 0xffff0000;
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/* patch up the buttons */
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b = ~( ((b & 1)<<2) | (b & 2) | ((b & 4)>>2));
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if ((x != sc->lastx) || (y != sc->lasty) || (b != sc->lastb)) {
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/* save old values */
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sc->lastx = x;
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sc->lasty = y;
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sc->lastb = b;
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/* do we have to bound x and y ? => yes */
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if (x < -MAX_XYREG) x = -MAX_XYREG;
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if (x > MAX_XYREG) x = MAX_XYREG;
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if (y < -MAX_XYREG) y = -MAX_XYREG;
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if (y > MAX_XYREG) y = MAX_XYREG;
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/* write the bounded values back */
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bus_space_write_4(sc->sc_iot, sc->sc_ioh, QMS_MOUSEX, x);
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bus_space_write_4(sc->sc_iot, sc->sc_ioh, QMS_MOUSEY, y);
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wsmouse_input(sc->sc_wsmousedev, b, x, y, 0,
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WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
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};
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return (0); /* pass on */
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}
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/* end of wsqms.c */
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