478 lines
10 KiB
C
478 lines
10 KiB
C
/* $NetBSD: kbd.c,v 1.29 1998/01/12 10:39:57 thorpej Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
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* 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 University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* kbd.c
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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/device.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <sys/signalvar.h>
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#include <dev/cons.h>
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#include <machine/cpu.h>
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#include <amiga/amiga/device.h>
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#include <amiga/amiga/custom.h>
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#ifdef DRACO
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#include <amiga/amiga/drcustom.h>
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#endif
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#include <amiga/amiga/cia.h>
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#include <amiga/dev/itevar.h>
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#include <amiga/dev/kbdreg.h>
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#include <amiga/dev/kbdmap.h>
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#include <amiga/dev/event_var.h>
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#include <amiga/dev/vuid_event.h>
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#include "kbd.h"
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#include <sys/conf.h>
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#include <machine/conf.h>
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struct kbd_softc {
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int k_event_mode; /* if true, collect events, else pass to ite */
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struct evvar k_events; /* event queue state */
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#ifdef DRACO
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u_char k_rlprfx; /* MF-II rel. prefix has been seen */
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#endif
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};
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struct kbd_softc kbd_softc;
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int kbdmatch __P((struct device *, struct cfdata *, void *));
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void kbdattach __P((struct device *, struct device *, void *));
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void kbdintr __P((int));
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void kbdstuffchar __P((u_char));
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struct cfattach kbd_ca = {
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sizeof(struct device), kbdmatch, kbdattach
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};
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/*ARGSUSED*/
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int
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kbdmatch(pdp, cfp, auxp)
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struct device *pdp;
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struct cfdata *cfp;
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void *auxp;
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{
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if (matchname((char *)auxp, "kbd"))
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return(1);
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return(0);
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}
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/*ARGSUSED*/
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void
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kbdattach(pdp, dp, auxp)
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struct device *pdp, *dp;
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void *auxp;
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{
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#ifdef DRACO
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/*
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* XXX Must be kept in sync with kbdenable() switch.
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* XXX This should be probed, but this way we dont need to initialize
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* the keyboards.
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*/
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switch (is_draco()) {
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case 0:
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case 1:
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case 2:
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printf(": CIA A type Amiga\n");
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break;
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case 3:
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case 4:
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default:
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printf(": QuickLogic type MF-II\n");
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break;
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}
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#else
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printf(": CIA A type Amiga\n");
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#endif
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}
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/* definitions for amiga keyboard encoding. */
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#define KEY_CODE(c) ((c) & 0x7f)
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#define KEY_UP(c) ((c) & 0x80)
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void
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kbdenable()
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{
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int s;
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#ifdef DRACO
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u_char c;
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#endif
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/*
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* collides with external ints from SCSI, watch out for this when
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* enabling/disabling interrupts there !!
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*/
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s = spltty();
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#ifdef DRACO
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switch (is_draco()) {
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case 0:
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custom.intena = INTF_SETCLR | INTF_PORTS;
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ciaa.icr = CIA_ICR_IR_SC | CIA_ICR_SP;
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/* SP interrupt enable */
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ciaa.cra &= ~(1<<6); /* serial line == input */
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break;
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case 1:
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case 2:
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/* XXX: tobedone: conditionally enable that one */
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/* XXX: for now, just enable DraCo ports and CIA */
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*draco_intena |= DRIRQ_INT2;
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ciaa.icr = CIA_ICR_IR_SC | CIA_ICR_SP;
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/* SP interrupt enable */
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ciaa.cra &= ~(1<<6); /* serial line == input */
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break;
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case 3:
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ciaa.icr = CIA_ICR_SP; /* CIA SP interrupt disable */
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ciaa.cra &= ~(1<<6); /* serial line == input */
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/* FALLTHROUGH */
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case 4:
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default:
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/* XXX: for now: always enable own keyboard */
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while (draco_ioct->io_status & DRSTAT_KBDRECV) {
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c = draco_ioct->io_kbddata;
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draco_ioct->io_kbdrst = 0;
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DELAY(2000);
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}
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draco_ioct->io_control &= ~DRCNTRL_KBDINTENA;
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break;
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}
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#else
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custom.intena = INTF_SETCLR | INTF_PORTS;
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ciaa.icr = CIA_ICR_IR_SC | CIA_ICR_SP; /* SP interrupt enable */
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ciaa.cra &= ~(1<<6); /* serial line == input */
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#endif
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kbd_softc.k_event_mode = 0;
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kbd_softc.k_events.ev_io = 0;
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splx(s);
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}
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int
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kbdopen(dev, flags, mode, p)
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dev_t dev;
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int flags, mode;
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struct proc *p;
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{
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if (kbd_softc.k_events.ev_io)
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return EBUSY;
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kbd_softc.k_events.ev_io = p;
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ev_init(&kbd_softc.k_events);
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return (0);
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}
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int
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kbdclose(dev, flags, mode, p)
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dev_t dev;
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int flags, mode;
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struct proc *p;
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{
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/* Turn off event mode, dump the queue */
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kbd_softc.k_event_mode = 0;
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ev_fini(&kbd_softc.k_events);
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kbd_softc.k_events.ev_io = NULL;
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return (0);
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}
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int
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kbdread(dev, uio, flags)
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dev_t dev;
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struct uio *uio;
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int flags;
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{
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return ev_read (&kbd_softc.k_events, uio, flags);
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}
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int
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kbdioctl(dev, cmd, data, flag, p)
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dev_t dev;
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u_long cmd;
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register caddr_t data;
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int flag;
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struct proc *p;
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{
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register struct kbd_softc *k = &kbd_softc;
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switch (cmd) {
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case KIOCTRANS:
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if (*(int *)data == TR_UNTRANS_EVENT)
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return 0;
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break;
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case KIOCGTRANS:
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/* Get translation mode */
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*(int *)data = TR_UNTRANS_EVENT;
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return 0;
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case KIOCSDIRECT:
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k->k_event_mode = *(int *)data;
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return 0;
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case FIONBIO: /* we will remove this someday (soon???) */
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return 0;
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case FIOASYNC:
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k->k_events.ev_async = *(int *)data != 0;
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return 0;
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case TIOCSPGRP:
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if (*(int *)data != k->k_events.ev_io->p_pgid)
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return EPERM;
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return 0;
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default:
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return ENOTTY;
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}
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/* We identified the ioctl, but we do not handle it. */
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return EOPNOTSUPP; /* misuse, but what the heck */
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}
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int
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kbdpoll(dev, events, p)
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dev_t dev;
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int events;
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struct proc *p;
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{
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return ev_poll (&kbd_softc.k_events, events, p);
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}
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void
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kbdintr(mask)
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int mask;
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{
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u_char c;
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#ifdef KBDRESET
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static int reset_warn;
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#endif
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/*
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* now only invoked from generic CIA interrupt handler if there *is*
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* a keyboard interrupt pending
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*/
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c = ~ciaa.sdr; /* keyboard data is inverted */
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/* ack */
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ciaa.cra |= (1 << 6); /* serial line output */
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#ifdef KBDRESET
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if (reset_warn && c == 0xf0) {
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#ifdef DEBUG
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printf ("kbdintr: !!!! Reset Warning !!!!\n");
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#endif
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bootsync();
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reset_warn = 0;
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DELAY(30000000);
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}
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#endif
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/* wait 200 microseconds (for bloody Cherry keyboards..) */
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DELAY(2000); /* fudge delay a bit for some keyboards */
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ciaa.cra &= ~(1 << 6);
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/* process the character */
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c = (c >> 1) | (c << 7); /* rotate right once */
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#ifdef KBDRESET
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if (c == 0x78) {
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#ifdef DEBUG
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printf ("kbdintr: Reset Warning started\n");
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#endif
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++reset_warn;
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return;
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}
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#endif
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kbdstuffchar(c);
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}
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#ifdef DRACO
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/* maps MF-II keycodes to Amiga keycodes */
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const u_char drkbdtab[] = {
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50,
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0x45, 0xff, 0xff, 0xff, 0xff, 0x42, 0x00, 0x51,
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0xff, 0x64, 0x60, 0x30, 0x63, 0x10, 0x01, 0x52,
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0xff, 0x66, 0x31, 0x21, 0x20, 0x11, 0x02, 0x53,
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0xff, 0x33, 0x32, 0x22, 0x12, 0x04, 0x03, 0x54,
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0xff, 0x40, 0x34, 0x23, 0x14, 0x13, 0x05, 0x55,
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0xff, 0x36, 0x35, 0x25, 0x24, 0x15, 0x06, 0x56,
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0xff, 0x67, 0x37, 0x26, 0x16, 0x07, 0x08, 0x57,
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/* --- */
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0xff, 0x38, 0x27, 0x17, 0x18, 0x0a, 0x09, 0x58,
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0xff, 0x39, 0x3a, 0x28, 0x29, 0x19, 0x0b, 0x59,
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0xff, 0xff, 0x2a, 0x2b, 0x1a, 0x0c, 0x4b, 0xff,
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0x65, 0x61, 0x44, 0x1b, 0xff, 0xff, 0x6f, 0xff,
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0x4d, 0x4f, 0xff, 0x4c, 0x0d, 0xff, 0x41, 0x46,
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0xff, 0x1d, 0x4e, 0x2d, 0x3d, 0x4a, 0x5f, 0x62,
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0x0f, 0x3c, 0x1e, 0x2e, 0x2f, 0x3e, 0x5a, 0x5b,
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0xff, 0x43, 0x1f, 0xff, 0x5e, 0x3f, 0x5c, 0xff,
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/* --- */
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0xff, 0xff, 0xff, 0xff, 0x5d
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};
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#endif
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int
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kbdgetcn ()
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{
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int s;
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u_char ints, mask, c, in;
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#ifdef DRACO
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/*
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* XXX todo: if CIA DraCo, get from cia if cia kbd
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* installed.
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*/
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if (is_draco()) {
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c = 0;
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s = spltty ();
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while ((draco_ioct->io_status & DRSTAT_KBDRECV) == 0);
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in = draco_ioct->io_kbddata;
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draco_ioct->io_kbdrst = 0;
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if (in == 0xF0) { /* release prefix */
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c = 0x80;
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while ((draco_ioct->io_status & DRSTAT_KBDRECV) == 0);
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in = draco_ioct->io_kbddata;
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draco_ioct->io_kbdrst = 0;
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}
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splx(s);
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#ifdef DRACORAWKEYDEBUG
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printf("<%02x>", in);
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#endif
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return (in>=sizeof(drkbdtab) ? 0xff : drkbdtab[in]|c);
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}
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#endif
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s = spltty();
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for (ints = 0; ! ((mask = ciaa.icr) & CIA_ICR_SP);
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ints |= mask) ;
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in = ciaa.sdr;
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c = ~in;
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/* ack */
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ciaa.cra |= (1 << 6); /* serial line output */
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ciaa.sdr = 0xff; /* ack */
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/* wait 200 microseconds */
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DELAY(2000); /* XXXX only works as long as DELAY doesn't
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* use a timer and waits.. */
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ciaa.cra &= ~(1 << 6);
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ciaa.sdr = in;
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splx (s);
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c = (c >> 1) | (c << 7);
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/* take care that no CIA-interrupts are lost */
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if (ints)
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dispatch_cia_ints (0, ints);
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return c;
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}
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void
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kbdstuffchar(c)
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u_char c;
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{
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struct firm_event *fe;
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struct kbd_softc *k = &kbd_softc;
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int put;
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/*
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* If not in event mode, deliver straight to ite to process
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* key stroke
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*/
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if (! k->k_event_mode) {
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ite_filter (c, ITEFILT_TTY);
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return;
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}
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/*
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* Keyboard is generating events. Turn this keystroke into an
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* event and put it in the queue. If the queue is full, the
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* keystroke is lost (sorry!).
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*/
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put = k->k_events.ev_put;
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fe = &k->k_events.ev_q[put];
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put = (put + 1) % EV_QSIZE;
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if (put == k->k_events.ev_get) {
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log(LOG_WARNING, "keyboard event queue overflow\n");
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/* ??? */
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return;
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}
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fe->id = KEY_CODE(c);
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fe->value = KEY_UP(c) ? VKEY_UP : VKEY_DOWN;
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fe->time = time;
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k->k_events.ev_put = put;
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EV_WAKEUP(&k->k_events);
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}
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#ifdef DRACO
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void
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drkbdintr()
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{
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u_char in;
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struct kbd_softc *k = &kbd_softc;
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in = draco_ioct->io_kbddata;
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draco_ioct->io_kbdrst = 0;
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if (in == 0xF0)
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k->k_rlprfx = 0x80;
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else {
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kbdstuffchar(in>=sizeof(drkbdtab) ? 0xff :
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drkbdtab[in] | k->k_rlprfx);
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k->k_rlprfx = 0;
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}
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}
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#endif
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