139 lines
4.0 KiB
C
139 lines
4.0 KiB
C
/* $NetBSD: qms_iomd.c,v 1.3 2001/11/27 01:03:53 thorpej Exp $ */
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/*
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* Copyright (c) Scott Stevens 1995 All rights reserved
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* Copyright (c) Melvin Tang-Richardson 1995 All rights reserved
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* Copyright (c) Mark Brinicombe 1995 All rights reserved
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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 RiscBSD team.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Quadrature mouse driver
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/types.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <sys/select.h>
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#include <sys/tty.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <arm/iomd/iomdvar.h>
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#include <arm/iomd/qmsvar.h>
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extern int iomd_found;
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#define TIMER1_COUNT 40000 /* 50Hz */
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static int qms_iomd_probe __P((struct device *, struct cfdata *, void *));
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static void qms_iomd_attach __P((struct device *, struct device *, void *));
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static void qms_iomd_intenable __P((struct qms_softc *sc, int enable));
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struct cfattach qms_iomd_ca = {
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sizeof(struct qms_softc), qms_iomd_probe, qms_iomd_attach
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};
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static int
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qms_iomd_probe(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct qms_attach_args *qa = aux;
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if (strcmp(qa->qa_name, "qms") == 0)
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return(1);
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return(0);
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}
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static void
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qms_iomd_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct qms_softc *sc = (void *)self;
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struct qms_attach_args *qa = aux;
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sc->sc_iot = qa->qa_iot;
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sc->sc_ioh = qa->qa_ioh;
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sc->sc_butioh = qa->qa_ioh_but;
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sc->sc_irqnum = qa->qa_irq;
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sc->sc_intenable = qms_iomd_intenable;
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/* if (sc->sc_irqnum == IRQ_TIMER1) {
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WriteByte(IOMD_T1LOW, (TIMER1_COUNT >> 0) & 0xff);
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WriteByte(IOMD_T1HIGH, (TIMER1_COUNT >> 8) & 0xff);
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WriteByte(IOMD_T1GO, 0);
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}
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*/
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qmsattach(sc);
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printf("\n");
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}
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static void
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qms_iomd_intenable(sc, enable)
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struct qms_softc *sc;
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int enable;
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{
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if (enable) {
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sc->sc_ih = intr_claim(sc->sc_irqnum, IPL_TTY, "qms", qmsintr, sc);
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if (!sc->sc_ih)
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panic("%s: Cannot claim interrupt\n", sc->sc_device.dv_xname);
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} else {
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if (intr_release(sc->sc_ih) != 0)
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panic("%s: Cannot release IRQ\n", sc->sc_device.dv_xname);
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}
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}
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#ifdef DIAGNOSTIC
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#include <arm/iomd/iomdreg.h>
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#include <arm/arm32/katelib.h>
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void
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qms_console_freeze()
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{
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if (!iomd_found) return;
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/* Middle mouse button freezes the display while active */
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while ((ReadByte(IO_MOUSE_BUTTONS) & MOUSE_BUTTON_MIDDLE) == 0);
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/* Left mouse button slows down the display speed */
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if ((ReadByte(IO_MOUSE_BUTTONS) & MOUSE_BUTTON_LEFT) == 0)
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delay(5000);
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}
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#endif /* DIAGNOSTIC */
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/* End of qms_iomd.c */
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