NetBSD/sys/arch/arm32/iomd/qms_iomd.c

135 lines
4.0 KiB
C

/* $NetBSD: qms_iomd.c,v 1.1 1997/10/14 11:16:39 mark Exp $ */
/*
* Copyright (c) Scott Stevens 1995 All rights reserved
* Copyright (c) Melvin Tang-Richardson 1995 All rights reserved
* Copyright (c) Mark Brinicombe 1995 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 the RiscBSD team.
* 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.
*/
/*
* Quadrature mouse driver
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/types.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/select.h>
#include <sys/tty.h>
#include <machine/bus.h>
#include <machine/irqhandler.h>
#include <arm32/dev/qmsvar.h>
#include <arm32/iomd/iomdvar.h>
#define TIMER1_COUNT 40000 /* 50Hz */
static int qms_iomd_probe __P((struct device *, struct cfdata *, void *));
static void qms_iomd_attach __P((struct device *, struct device *, void *));
static void qms_iomd_intenable __P((struct qms_softc *sc, int enable));
struct cfattach qms_iomd_ca = {
sizeof(struct qms_softc), qms_iomd_probe, qms_iomd_attach
};
static int
qms_iomd_probe(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
struct qms_attach_args *qa = aux;
if (strcmp(qa->qa_name, "qms") == 0)
return(1);
return(0);
}
static void
qms_iomd_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct qms_softc *sc = (void *)self;
struct qms_attach_args *qa = aux;
sc->sc_iot = qa->qa_iot;
sc->sc_ioh = qa->qa_ioh;
sc->sc_butioh = qa->qa_ioh_but;
sc->sc_irqnum = qa->qa_irq;
sc->sc_intenable = qms_iomd_intenable;
/* if (sc->sc_irqnum == IRQ_TIMER1) {
WriteByte(IOMD_T1LOW, (TIMER1_COUNT >> 0) & 0xff);
WriteByte(IOMD_T1HIGH, (TIMER1_COUNT >> 8) & 0xff);
WriteByte(IOMD_T1GO, 0);
}
*/
qmsattach(sc);
printf("\n");
}
static void
qms_iomd_intenable(sc, enable)
struct qms_softc *sc;
int enable;
{
if (enable) {
sc->sc_ih = intr_claim(sc->sc_irqnum, IPL_TTY, "qms", qmsintr, sc);
if (!sc->sc_ih)
panic("%s: Cannot claim interrupt\n", sc->sc_device.dv_xname);
} else {
if (intr_release(sc->sc_ih) != 0)
panic("%s: Cannot release IRQ\n", sc->sc_device.dv_xname);
}
}
#ifdef DIAGNOSTIC
#include <arm32/iomd/iomdreg.h>
#include <machine/katelib.h>
void
qms_console_freeze()
{
/* Middle mouse button freezes the display while active */
while ((ReadByte(IO_MOUSE_BUTTONS) & MOUSE_BUTTON_MIDDLE) == 0);
/* Left mouse button slows down the display speed */
if ((ReadByte(IO_MOUSE_BUTTONS) & MOUSE_BUTTON_LEFT) == 0)
delay(5000);
}
#endif /* DIAGNOSTIC */
/* End of qms_iomd.c */