NetBSD/sys/arch/amiga/dev/kbd.c

478 lines
10 KiB
C

/* $NetBSD: kbd.c,v 1.29 1998/01/12 10:39:57 thorpej Exp $ */
/*
* Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
* 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 University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
* kbd.c
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/ioctl.h>
#include <sys/tty.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
#include <sys/signalvar.h>
#include <dev/cons.h>
#include <machine/cpu.h>
#include <amiga/amiga/device.h>
#include <amiga/amiga/custom.h>
#ifdef DRACO
#include <amiga/amiga/drcustom.h>
#endif
#include <amiga/amiga/cia.h>
#include <amiga/dev/itevar.h>
#include <amiga/dev/kbdreg.h>
#include <amiga/dev/kbdmap.h>
#include <amiga/dev/event_var.h>
#include <amiga/dev/vuid_event.h>
#include "kbd.h"
#include <sys/conf.h>
#include <machine/conf.h>
struct kbd_softc {
int k_event_mode; /* if true, collect events, else pass to ite */
struct evvar k_events; /* event queue state */
#ifdef DRACO
u_char k_rlprfx; /* MF-II rel. prefix has been seen */
#endif
};
struct kbd_softc kbd_softc;
int kbdmatch __P((struct device *, struct cfdata *, void *));
void kbdattach __P((struct device *, struct device *, void *));
void kbdintr __P((int));
void kbdstuffchar __P((u_char));
struct cfattach kbd_ca = {
sizeof(struct device), kbdmatch, kbdattach
};
/*ARGSUSED*/
int
kbdmatch(pdp, cfp, auxp)
struct device *pdp;
struct cfdata *cfp;
void *auxp;
{
if (matchname((char *)auxp, "kbd"))
return(1);
return(0);
}
/*ARGSUSED*/
void
kbdattach(pdp, dp, auxp)
struct device *pdp, *dp;
void *auxp;
{
#ifdef DRACO
/*
* XXX Must be kept in sync with kbdenable() switch.
* XXX This should be probed, but this way we dont need to initialize
* the keyboards.
*/
switch (is_draco()) {
case 0:
case 1:
case 2:
printf(": CIA A type Amiga\n");
break;
case 3:
case 4:
default:
printf(": QuickLogic type MF-II\n");
break;
}
#else
printf(": CIA A type Amiga\n");
#endif
}
/* definitions for amiga keyboard encoding. */
#define KEY_CODE(c) ((c) & 0x7f)
#define KEY_UP(c) ((c) & 0x80)
void
kbdenable()
{
int s;
#ifdef DRACO
u_char c;
#endif
/*
* collides with external ints from SCSI, watch out for this when
* enabling/disabling interrupts there !!
*/
s = spltty();
#ifdef DRACO
switch (is_draco()) {
case 0:
custom.intena = INTF_SETCLR | INTF_PORTS;
ciaa.icr = CIA_ICR_IR_SC | CIA_ICR_SP;
/* SP interrupt enable */
ciaa.cra &= ~(1<<6); /* serial line == input */
break;
case 1:
case 2:
/* XXX: tobedone: conditionally enable that one */
/* XXX: for now, just enable DraCo ports and CIA */
*draco_intena |= DRIRQ_INT2;
ciaa.icr = CIA_ICR_IR_SC | CIA_ICR_SP;
/* SP interrupt enable */
ciaa.cra &= ~(1<<6); /* serial line == input */
break;
case 3:
ciaa.icr = CIA_ICR_SP; /* CIA SP interrupt disable */
ciaa.cra &= ~(1<<6); /* serial line == input */
/* FALLTHROUGH */
case 4:
default:
/* XXX: for now: always enable own keyboard */
while (draco_ioct->io_status & DRSTAT_KBDRECV) {
c = draco_ioct->io_kbddata;
draco_ioct->io_kbdrst = 0;
DELAY(2000);
}
draco_ioct->io_control &= ~DRCNTRL_KBDINTENA;
break;
}
#else
custom.intena = INTF_SETCLR | INTF_PORTS;
ciaa.icr = CIA_ICR_IR_SC | CIA_ICR_SP; /* SP interrupt enable */
ciaa.cra &= ~(1<<6); /* serial line == input */
#endif
kbd_softc.k_event_mode = 0;
kbd_softc.k_events.ev_io = 0;
splx(s);
}
int
kbdopen(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
if (kbd_softc.k_events.ev_io)
return EBUSY;
kbd_softc.k_events.ev_io = p;
ev_init(&kbd_softc.k_events);
return (0);
}
int
kbdclose(dev, flags, mode, p)
dev_t dev;
int flags, mode;
struct proc *p;
{
/* Turn off event mode, dump the queue */
kbd_softc.k_event_mode = 0;
ev_fini(&kbd_softc.k_events);
kbd_softc.k_events.ev_io = NULL;
return (0);
}
int
kbdread(dev, uio, flags)
dev_t dev;
struct uio *uio;
int flags;
{
return ev_read (&kbd_softc.k_events, uio, flags);
}
int
kbdioctl(dev, cmd, data, flag, p)
dev_t dev;
u_long cmd;
register caddr_t data;
int flag;
struct proc *p;
{
register struct kbd_softc *k = &kbd_softc;
switch (cmd) {
case KIOCTRANS:
if (*(int *)data == TR_UNTRANS_EVENT)
return 0;
break;
case KIOCGTRANS:
/* Get translation mode */
*(int *)data = TR_UNTRANS_EVENT;
return 0;
case KIOCSDIRECT:
k->k_event_mode = *(int *)data;
return 0;
case FIONBIO: /* we will remove this someday (soon???) */
return 0;
case FIOASYNC:
k->k_events.ev_async = *(int *)data != 0;
return 0;
case TIOCSPGRP:
if (*(int *)data != k->k_events.ev_io->p_pgid)
return EPERM;
return 0;
default:
return ENOTTY;
}
/* We identified the ioctl, but we do not handle it. */
return EOPNOTSUPP; /* misuse, but what the heck */
}
int
kbdpoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
return ev_poll (&kbd_softc.k_events, events, p);
}
void
kbdintr(mask)
int mask;
{
u_char c;
#ifdef KBDRESET
static int reset_warn;
#endif
/*
* now only invoked from generic CIA interrupt handler if there *is*
* a keyboard interrupt pending
*/
c = ~ciaa.sdr; /* keyboard data is inverted */
/* ack */
ciaa.cra |= (1 << 6); /* serial line output */
#ifdef KBDRESET
if (reset_warn && c == 0xf0) {
#ifdef DEBUG
printf ("kbdintr: !!!! Reset Warning !!!!\n");
#endif
bootsync();
reset_warn = 0;
DELAY(30000000);
}
#endif
/* wait 200 microseconds (for bloody Cherry keyboards..) */
DELAY(2000); /* fudge delay a bit for some keyboards */
ciaa.cra &= ~(1 << 6);
/* process the character */
c = (c >> 1) | (c << 7); /* rotate right once */
#ifdef KBDRESET
if (c == 0x78) {
#ifdef DEBUG
printf ("kbdintr: Reset Warning started\n");
#endif
++reset_warn;
return;
}
#endif
kbdstuffchar(c);
}
#ifdef DRACO
/* maps MF-II keycodes to Amiga keycodes */
const u_char drkbdtab[] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x50,
0x45, 0xff, 0xff, 0xff, 0xff, 0x42, 0x00, 0x51,
0xff, 0x64, 0x60, 0x30, 0x63, 0x10, 0x01, 0x52,
0xff, 0x66, 0x31, 0x21, 0x20, 0x11, 0x02, 0x53,
0xff, 0x33, 0x32, 0x22, 0x12, 0x04, 0x03, 0x54,
0xff, 0x40, 0x34, 0x23, 0x14, 0x13, 0x05, 0x55,
0xff, 0x36, 0x35, 0x25, 0x24, 0x15, 0x06, 0x56,
0xff, 0x67, 0x37, 0x26, 0x16, 0x07, 0x08, 0x57,
/* --- */
0xff, 0x38, 0x27, 0x17, 0x18, 0x0a, 0x09, 0x58,
0xff, 0x39, 0x3a, 0x28, 0x29, 0x19, 0x0b, 0x59,
0xff, 0xff, 0x2a, 0x2b, 0x1a, 0x0c, 0x4b, 0xff,
0x65, 0x61, 0x44, 0x1b, 0xff, 0xff, 0x6f, 0xff,
0x4d, 0x4f, 0xff, 0x4c, 0x0d, 0xff, 0x41, 0x46,
0xff, 0x1d, 0x4e, 0x2d, 0x3d, 0x4a, 0x5f, 0x62,
0x0f, 0x3c, 0x1e, 0x2e, 0x2f, 0x3e, 0x5a, 0x5b,
0xff, 0x43, 0x1f, 0xff, 0x5e, 0x3f, 0x5c, 0xff,
/* --- */
0xff, 0xff, 0xff, 0xff, 0x5d
};
#endif
int
kbdgetcn ()
{
int s;
u_char ints, mask, c, in;
#ifdef DRACO
/*
* XXX todo: if CIA DraCo, get from cia if cia kbd
* installed.
*/
if (is_draco()) {
c = 0;
s = spltty ();
while ((draco_ioct->io_status & DRSTAT_KBDRECV) == 0);
in = draco_ioct->io_kbddata;
draco_ioct->io_kbdrst = 0;
if (in == 0xF0) { /* release prefix */
c = 0x80;
while ((draco_ioct->io_status & DRSTAT_KBDRECV) == 0);
in = draco_ioct->io_kbddata;
draco_ioct->io_kbdrst = 0;
}
splx(s);
#ifdef DRACORAWKEYDEBUG
printf("<%02x>", in);
#endif
return (in>=sizeof(drkbdtab) ? 0xff : drkbdtab[in]|c);
}
#endif
s = spltty();
for (ints = 0; ! ((mask = ciaa.icr) & CIA_ICR_SP);
ints |= mask) ;
in = ciaa.sdr;
c = ~in;
/* ack */
ciaa.cra |= (1 << 6); /* serial line output */
ciaa.sdr = 0xff; /* ack */
/* wait 200 microseconds */
DELAY(2000); /* XXXX only works as long as DELAY doesn't
* use a timer and waits.. */
ciaa.cra &= ~(1 << 6);
ciaa.sdr = in;
splx (s);
c = (c >> 1) | (c << 7);
/* take care that no CIA-interrupts are lost */
if (ints)
dispatch_cia_ints (0, ints);
return c;
}
void
kbdstuffchar(c)
u_char c;
{
struct firm_event *fe;
struct kbd_softc *k = &kbd_softc;
int put;
/*
* If not in event mode, deliver straight to ite to process
* key stroke
*/
if (! k->k_event_mode) {
ite_filter (c, ITEFILT_TTY);
return;
}
/*
* Keyboard is generating events. Turn this keystroke into an
* event and put it in the queue. If the queue is full, the
* keystroke is lost (sorry!).
*/
put = k->k_events.ev_put;
fe = &k->k_events.ev_q[put];
put = (put + 1) % EV_QSIZE;
if (put == k->k_events.ev_get) {
log(LOG_WARNING, "keyboard event queue overflow\n");
/* ??? */
return;
}
fe->id = KEY_CODE(c);
fe->value = KEY_UP(c) ? VKEY_UP : VKEY_DOWN;
fe->time = time;
k->k_events.ev_put = put;
EV_WAKEUP(&k->k_events);
}
#ifdef DRACO
void
drkbdintr()
{
u_char in;
struct kbd_softc *k = &kbd_softc;
in = draco_ioct->io_kbddata;
draco_ioct->io_kbdrst = 0;
if (in == 0xF0)
k->k_rlprfx = 0x80;
else {
kbdstuffchar(in>=sizeof(drkbdtab) ? 0xff :
drkbdtab[in] | k->k_rlprfx);
k->k_rlprfx = 0;
}
}
#endif