NetBSD/sys/arch/mac68k/dev/adb.c

531 lines
12 KiB
C

/* $NetBSD: adb.c,v 1.5 1995/11/01 04:40:21 briggs Exp $ */
/*-
* Copyright (C) 1994 Bradley A. Grantham
* 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
e* 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 Bradley A. Grantham.
* 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.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/fcntl.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <machine/adbsys.h>
#include <machine/keyboard.h>
#include "adbvar.h"
#include "../mac68k/macrom.h"
/*
* Function declarations.
*/
static void adbattach __P((struct device *parent, struct device *dev, void *aux));
/*
* Global variables.
*/
int adb_polling = 0; /* Are we polling? (Debugger mode) */
/*
* Local variables.
*/
/* External keyboard translation matrix */
extern unsigned char keyboard[128][3];
/* Event queue definitions */
#if !defined(ADB_MAX_EVENTS)
#define ADB_MAX_EVENTS 200 /* Maximum events to be kept in queue */
/* maybe should be higher for slower macs? */
#endif /* !defined(ADB_MAX_EVENTS) */
static adb_event_t adb_evq[ADB_MAX_EVENTS]; /* ADB event queue */
static int adb_evq_tail = 0; /* event queue tail */
static int adb_evq_len = 0; /* event queue length */
/* ADB device state information */
static int adb_isopen = 0; /* Are we queuing events for adb_read? */
static struct selinfo adb_selinfo; /* select() info */
static struct proc *adb_ioproc = NULL; /* process to wakeup */
/* Key repeat parameters */
static int adb_rptdelay = 20; /* ticks before auto-repeat */
static int adb_rptinterval = 6; /* ticks between auto-repeat */
static int adb_repeating = -1; /* key that is auto-repeating */
static adb_event_t adb_rptevent;/* event to auto-repeat */
extern int matchbyname();
/* Driver definition. */
struct cfdriver adbcd = {
NULL, "adb", matchbyname, adbattach, DV_DULL, sizeof(struct device),
};
static void
adbattach(parent, dev, aux)
struct device *parent, *dev;
void *aux;
{
printf(" (ADB event device)\n");
}
void
adb_enqevent(event)
adb_event_t *event;
{
int s;
if (adb_evq_tail < 0 || adb_evq_tail >= ADB_MAX_EVENTS)
panic("adb: event queue tail is out of bounds");
if (adb_evq_len < 0 || adb_evq_len > ADB_MAX_EVENTS)
panic("adb: event queue len is out of bounds");
s = splhigh();
if (adb_evq_len == ADB_MAX_EVENTS) {
splx(s);
return; /* Oh, well... */
}
adb_evq[(adb_evq_len + adb_evq_tail) % ADB_MAX_EVENTS] =
*event;
adb_evq_len++;
selwakeup(&adb_selinfo);
if (adb_ioproc)
psignal(adb_ioproc, SIGIO);
splx(s);
}
void
adb_handoff(event)
adb_event_t *event;
{
if (adb_isopen && !adb_polling) {
adb_enqevent(event);
} else {
if (event->def_addr == 2)
ite_intr(event);
}
}
void
adb_autorepeat(keyp)
void *keyp;
{
int key = (int) keyp;
adb_rptevent.bytes[0] |= 0x80;
microtime(&adb_rptevent.timestamp);
adb_handoff(&adb_rptevent); /* do key up */
adb_rptevent.bytes[0] &= 0x7f;
microtime(&adb_rptevent.timestamp);
adb_handoff(&adb_rptevent); /* do key down */
if (adb_repeating == key) {
timeout(adb_autorepeat, keyp, adb_rptinterval);
}
}
void
adb_dokeyupdown(event)
adb_event_t *event;
{
int adb_key;
if (event->def_addr == 2) {
adb_key = event->u.k.key & 0x7f;
if (!(event->u.k.key & 0x80) &&
keyboard[event->u.k.key & 0x7f][0] != 0) {
/* ignore shift & control */
if (adb_repeating != -1) {
untimeout(adb_autorepeat,
(void *) adb_rptevent.u.k.key);
}
adb_rptevent = *event;
adb_repeating = adb_key;
timeout(adb_autorepeat,
(void *) adb_key, adb_rptdelay);
} else {
if (adb_repeating != -1) {
adb_repeating = -1;
untimeout(adb_autorepeat,
(void *) adb_rptevent.u.k.key);
}
adb_rptevent = *event;
}
}
adb_handoff(event);
}
static adb_ms_buttons = 0;
void
adb_keymaybemouse(event)
adb_event_t *event;
{
static int optionkey_down = 0;
adb_event_t new_event;
if (event->u.k.key == ADBK_KEYDOWN(ADBK_OPTION)) {
optionkey_down = 1;
} else if (event->u.k.key == ADBK_KEYUP(ADBK_OPTION)) {
/* key up */
optionkey_down = 0;
if (adb_ms_buttons & 0xfe) {
adb_ms_buttons &= 1;
new_event.def_addr = ADBADDR_MS;
new_event.u.m.buttons = adb_ms_buttons;
new_event.u.m.dx = new_event.u.m.dy = 0;
microtime(&new_event.timestamp);
adb_dokeyupdown(&new_event);
}
} else if (optionkey_down) {
if (event->u.k.key == ADBK_KEYDOWN(ADBK_LEFT)) {
adb_ms_buttons |= 2; /* middle down */
new_event.def_addr = ADBADDR_MS;
new_event.u.m.buttons = adb_ms_buttons;
new_event.u.m.dx = new_event.u.m.dy = 0;
microtime(&new_event.timestamp);
adb_dokeyupdown(&new_event);
} else if (event->u.k.key == ADBK_KEYUP(ADBK_LEFT)) {
adb_ms_buttons &= ~2; /* middle up */
new_event.def_addr = ADBADDR_MS;
new_event.u.m.buttons = adb_ms_buttons;
new_event.u.m.dx = new_event.u.m.dy = 0;
microtime(&new_event.timestamp);
adb_dokeyupdown(&new_event);
} else if (event->u.k.key == ADBK_KEYDOWN(ADBK_RIGHT)) {
adb_ms_buttons |= 4; /* right down */
new_event.def_addr = ADBADDR_MS;
new_event.u.m.buttons = adb_ms_buttons;
new_event.u.m.dx = new_event.u.m.dy = 0;
microtime(&new_event.timestamp);
adb_dokeyupdown(&new_event);
} else if (event->u.k.key == ADBK_KEYUP(ADBK_RIGHT)) {
adb_ms_buttons &= ~4; /* right up */
new_event.def_addr = ADBADDR_MS;
new_event.u.m.buttons = adb_ms_buttons;
new_event.u.m.dx = new_event.u.m.dy = 0;
microtime(&new_event.timestamp);
adb_dokeyupdown(&new_event);
} else if (ADBK_MODIFIER(event->u.k.key)) {
/* ctrl, shift, cmd */
adb_dokeyupdown(event);
} else if (!(event->u.k.key & 0x80)) {
/* key down */
new_event = *event;
/* send option-down */
new_event.u.k.key = ADBK_KEYDOWN(ADBK_OPTION);
new_event.bytes[0] = new_event.u.k.key;
microtime(&new_event.timestamp);
adb_dokeyupdown(&new_event);
/* send key-down */
new_event.u.k.key = event->bytes[0];
new_event.bytes[0] = new_event.u.k.key;
microtime(&new_event.timestamp);
adb_dokeyupdown(&new_event);
/* send key-up */
new_event.u.k.key =
ADBK_KEYUP(ADBK_KEYVAL(event->bytes[0]));
microtime(&new_event.timestamp);
new_event.bytes[0] = new_event.u.k.key;
adb_dokeyupdown(&new_event);
/* send option-up */
new_event.u.k.key = ADBK_KEYUP(ADBK_OPTION);
new_event.bytes[0] = new_event.u.k.key;
microtime(&new_event.timestamp);
adb_dokeyupdown(&new_event);
} else {
/* option-keyup -- do nothing. */
}
} else {
adb_dokeyupdown(event);
}
}
void
adb_processevent(event)
adb_event_t *event;
{
adb_event_t new_event;
int i, button_bit, max_byte, mask, buttons;
new_event = *event;
buttons = 0;
switch (event->def_addr) {
case ADBADDR_KBD:
new_event.u.k.key = event->bytes[0];
new_event.bytes[1] = 0xff;
adb_keymaybemouse(&new_event);
if (event->bytes[1] != 0xff) {
new_event.u.k.key = event->bytes[1];
new_event.bytes[0] = event->bytes[1];
new_event.bytes[1] = 0xff;
adb_keymaybemouse(&new_event);
}
break;
case ADBADDR_MS:
/*
* This should handle both plain ol' Apple mice and mice
* that claim to support the Extended Apple Mouse Protocol.
*/
max_byte = event->byte_count;
button_bit = 1;
/* Classic Mouse Protocol (up to 2 buttons) */
for (i = 0; i < 2; i++, button_bit <<= 1)
/* 0 when button down */
if (!(event->bytes[i] & 0x80))
buttons |= button_bit;
else
buttons &= ~button_bit;
/* Extended Protocol (up to 6 more buttons) */
for (mask = 0x80; i < max_byte;
i += (mask == 0x80), button_bit <<= 1) {
/* 0 when button down */
if (!(event->bytes[i] & mask))
buttons |= button_bit;
else
buttons &= ~button_bit;
mask = ((mask >> 4) & 0xf) | ((mask & 0xf) << 4);
}
new_event.u.m.buttons = adb_ms_buttons | buttons;
new_event.u.m.dx = ((signed int) (event->bytes[1] & 0x3f)) -
((event->bytes[1] & 0x40) ? 64 : 0);
new_event.u.m.dy = ((signed int) (event->bytes[0] & 0x3f)) -
((event->bytes[0] & 0x40) ? 64 : 0);
adb_dokeyupdown(&new_event);
break;
default: /* God only knows. */
adb_dokeyupdown(event);
}
}
int
adbopen(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
register int unit;
int error = 0;
int s;
unit = minor(dev);
if (unit != 0)
return (ENXIO);
s = splhigh();
if (adb_isopen) {
splx(s);
return (EBUSY);
}
splx(s);
adb_evq_tail = 0;
adb_evq_len = 0;
adb_isopen = 1;
adb_ioproc = p;
return (error);
}
int
adbclose(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
adb_isopen = 0;
adb_ioproc = NULL;
return (0);
}
int
adbread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
int s, error;
int willfit;
int total;
int firstmove;
int moremove;
if (uio->uio_resid < sizeof(adb_event_t))
return (EMSGSIZE); /* close enough. */
s = splhigh();
if (adb_evq_len == 0) {
splx(s);
return (0);
}
willfit = howmany(uio->uio_resid, sizeof(adb_event_t));
total = (adb_evq_len < willfit) ? adb_evq_len : willfit;
firstmove = (adb_evq_tail + total > ADB_MAX_EVENTS)
? (ADB_MAX_EVENTS - adb_evq_tail) : total;
error = uiomove((caddr_t) & adb_evq[adb_evq_tail],
firstmove * sizeof(adb_event_t), uio);
if (error) {
splx(s);
return (error);
}
moremove = total - firstmove;
if (moremove > 0) {
error = uiomove((caddr_t) & adb_evq[0],
moremove * sizeof(adb_event_t), uio);
if (error) {
splx(s);
return (error);
}
}
adb_evq_tail = (adb_evq_tail + total) % ADB_MAX_EVENTS;
adb_evq_len -= total;
splx(s);
return (0);
}
int
adbwrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
return 0;
}
int
adbioctl(dev, cmd, data, flag, p)
dev_t dev;
int cmd;
caddr_t data;
int flag;
struct proc *p;
{
switch (cmd) {
case ADBIOC_DEVSINFO: {
adb_devinfo_t *di;
ADBDataBlock adbdata;
int totaldevs;
int adbaddr;
int i;
di = (void *) data;
/* Initialize to no devices */
for (i = 0; i < 16; i++)
di->dev[i].addr = -1;
totaldevs = CountADBs();
for (i = 1; i <= totaldevs; i++) {
adbaddr = GetIndADB(&adbdata, i);
di->dev[adbaddr].addr = adbaddr;
di->dev[adbaddr].default_addr = adbdata.origADBAddr;
di->dev[adbaddr].handler_id = adbdata.devType;
}
/* Must call ADB Manager to get devices now */
break;
}
case ADBIOC_GETREPEAT:{
adb_rptinfo_t *ri;
ri = (void *) data;
ri->delay_ticks = adb_rptdelay;
ri->interval_ticks = adb_rptinterval;
break;
}
case ADBIOC_SETREPEAT:{
adb_rptinfo_t *ri;
ri = (void *) data;
adb_rptdelay = ri->delay_ticks;
adb_rptinterval = ri->interval_ticks;
break;
}
case ADBIOC_RESET:
adb_init();
break;
case ADBIOC_LISTENCMD:{
adb_listencmd_t *lc;
lc = (void *) data;
}
default:
return (EINVAL);
}
return (0);
}
int
adbselect(dev, rw, p)
dev_t dev;
int rw;
struct proc *p;
{
switch (rw) {
case FREAD:
/* succeed if there is something to read */
if (adb_evq_len > 0)
return (1);
selrecord(p, &adb_selinfo);
break;
case FWRITE:
return (1); /* always fails => never blocks */
break;
}
return (0);
}