425 lines
9.2 KiB
C
425 lines
9.2 KiB
C
/* $NetBSD: ms.c,v 1.6 1994/12/01 17:25:29 chopps Exp $ */
|
|
|
|
/*
|
|
* based on:
|
|
*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This software was developed by the Computer Systems Engineering group
|
|
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
|
|
* contributed to Berkeley.
|
|
*
|
|
* 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, Lawrence Berkeley Laboratory.
|
|
*
|
|
* 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.
|
|
*
|
|
* @(#)ms.c 8.1 (Berkeley) 6/11/93
|
|
*
|
|
* Header: ms.c,v 1.5 92/11/26 01:28:47 torek Exp (LBL)
|
|
*/
|
|
|
|
/*
|
|
* Mouse driver.
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/syslog.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/tty.h>
|
|
|
|
#include <amiga/dev/event_var.h>
|
|
#include <amiga/dev/vuid_event.h>
|
|
|
|
#include <amiga/amiga/custom.h>
|
|
#include <amiga/amiga/cia.h>
|
|
|
|
#include "mouse.h"
|
|
#if NMOUSE > 0
|
|
|
|
/* there's really no more physical ports on an amiga.. */
|
|
#if NMOUSE > 2
|
|
#undef NMOUSE
|
|
#define NMOUSE 2
|
|
#endif
|
|
|
|
void msintr __P((void *));
|
|
void ms_enable __P((dev_t));
|
|
void ms_disable __P((dev_t));
|
|
|
|
int
|
|
mouseattach(cnt)
|
|
int cnt;
|
|
{
|
|
printf("%d %s configured\n", NMOUSE, NMOUSE == 1 ? "mouse" : "mice");
|
|
return(NMOUSE);
|
|
}
|
|
|
|
/*
|
|
* Amiga mice are hooked up to one of the two "game" ports, where
|
|
* the main mouse is usually on the first port, and port 2 can
|
|
* be used by a joystick. Nevertheless, we support two mouse
|
|
* devices, /dev/mouse0 and /dev/mouse1 (with a link of /dev/mouse to
|
|
* the device that represents the port of the mouse in use).
|
|
*/
|
|
struct ms_softc {
|
|
u_char ms_horc; /* horizontal counter on last scan */
|
|
u_char ms_verc; /* vertical counter on last scan */
|
|
char ms_mb; /* mouse button state */
|
|
char ms_ub; /* user button state */
|
|
int ms_dx; /* delta-x */
|
|
int ms_dy; /* delta-y */
|
|
volatile int ms_ready; /* event queue is ready */
|
|
struct evvar ms_events; /* event queue state */
|
|
} ms_softc[NMOUSE];
|
|
|
|
|
|
/*
|
|
* enable scanner, called when someone opens the device.
|
|
* Assume caller already validated range of dev.
|
|
*/
|
|
void
|
|
ms_enable(dev)
|
|
dev_t dev;
|
|
{
|
|
struct ms_softc *ms;
|
|
|
|
ms = &ms_softc[minor(dev)];
|
|
/*
|
|
* use this as flag to the "interrupt" to tell it when to
|
|
* shut off (when it's reset to 0).
|
|
*/
|
|
ms->ms_ready = 1;
|
|
|
|
timeout(msintr, (void *)minor(dev), 2);
|
|
}
|
|
|
|
/*
|
|
* disable scanner. Just set ms_ready to 0, and after the next
|
|
* timeout taken, no further timeouts will be initiated.
|
|
*/
|
|
void
|
|
ms_disable(dev)
|
|
dev_t dev;
|
|
{
|
|
struct ms_softc *ms;
|
|
int s;
|
|
|
|
ms = &ms_softc[minor(dev)];
|
|
s = splhigh ();
|
|
ms->ms_ready = 0;
|
|
/*
|
|
* sync with the interrupt
|
|
*/
|
|
tsleep(ms, PZERO - 1, "mouse-disable", 0);
|
|
splx(s);
|
|
}
|
|
|
|
|
|
/*
|
|
* we're emulating a mousesystems serial mouse here..
|
|
*/
|
|
void
|
|
msintr(arg)
|
|
void *arg;
|
|
{
|
|
static const char to_one[] = { 1, 2, 2, 4, 4, 4, 4 };
|
|
static const int to_id[] = { MS_RIGHT, MS_MIDDLE, 0, MS_LEFT };
|
|
struct ms_softc *ms;
|
|
struct firm_event *fe;
|
|
int mb, ub, d, get, put, any, unit;
|
|
u_char pra, *horc, *verc;
|
|
u_short pot, count;
|
|
short dx, dy;
|
|
|
|
unit = (int)arg;
|
|
ms = &ms_softc[unit];
|
|
horc = ((u_char *) &count) + 1;
|
|
verc = (u_char *) &count;
|
|
|
|
/*
|
|
* first read the three buttons.
|
|
*/
|
|
pot = custom.potgor;
|
|
pra = ciaa.pra;
|
|
pot >>= unit == 0 ? 8 : 12; /* contains right and middle button */
|
|
pra >>= unit == 0 ? 6 : 7; /* contains left button */
|
|
mb = (pot & 4) / 4 + (pot & 1) * 2 + (pra & 1) * 4;
|
|
mb ^= 0x07;
|
|
|
|
/*
|
|
* read current values of counter registers
|
|
*/
|
|
if (unit == 0)
|
|
count = custom.joy0dat;
|
|
else
|
|
count = custom.joy1dat;
|
|
|
|
/*
|
|
* take care of wraparound
|
|
*/
|
|
dx = *horc - ms->ms_horc;
|
|
if (dx < -127)
|
|
dx += 255;
|
|
else if (dx > 127)
|
|
dx -= 255;
|
|
dy = *verc - ms->ms_verc;
|
|
if (dy < -127)
|
|
dy += 255;
|
|
else if (dy > 127)
|
|
dy -= 255;
|
|
|
|
/*
|
|
* remember current values for next scan
|
|
*/
|
|
ms->ms_horc = *horc;
|
|
ms->ms_verc = *verc;
|
|
|
|
ms->ms_dx = dx;
|
|
ms->ms_dy = dy;
|
|
ms->ms_mb = mb;
|
|
|
|
if (dx || dy || ms->ms_ub != ms->ms_mb) {
|
|
/*
|
|
* We have at least one event (mouse button, delta-X, or
|
|
* delta-Y; possibly all three, and possibly three separate
|
|
* button events). Deliver these events until we are out of
|
|
* changes or out of room. As events get delivered, mark them
|
|
* `unchanged'.
|
|
*/
|
|
any = 0;
|
|
get = ms->ms_events.ev_get;
|
|
put = ms->ms_events.ev_put;
|
|
fe = &ms->ms_events.ev_q[put];
|
|
|
|
mb = ms->ms_mb;
|
|
ub = ms->ms_ub;
|
|
while ((d = mb ^ ub) != 0) {
|
|
/*
|
|
* Mouse button change. Convert up to three changes
|
|
* to the `first' change, and drop it into the event
|
|
* queue.
|
|
*/
|
|
if ((++put) % EV_QSIZE == get) {
|
|
put--;
|
|
goto out;
|
|
}
|
|
|
|
d = to_one[d - 1]; /* from 1..7 to {1,2,4} */
|
|
fe->id = to_id[d - 1]; /* from {1,2,4} to ID */
|
|
fe->value = mb & d ? VKEY_DOWN : VKEY_UP;
|
|
fe->time = time;
|
|
fe++;
|
|
|
|
if (put >= EV_QSIZE) {
|
|
put = 0;
|
|
fe = &ms->ms_events.ev_q[0];
|
|
}
|
|
any = 1;
|
|
|
|
ub ^= d;
|
|
}
|
|
if (ms->ms_dx) {
|
|
if ((++put) % EV_QSIZE == get) {
|
|
put--;
|
|
goto out;
|
|
}
|
|
|
|
fe->id = LOC_X_DELTA;
|
|
fe->value = ms->ms_dx;
|
|
fe->time = time;
|
|
fe++;
|
|
|
|
if (put >= EV_QSIZE) {
|
|
put = 0;
|
|
fe = &ms->ms_events.ev_q[0];
|
|
}
|
|
any = 1;
|
|
|
|
ms->ms_dx = 0;
|
|
}
|
|
if (ms->ms_dy) {
|
|
if ((++put) % EV_QSIZE == get) {
|
|
put--;
|
|
goto out;
|
|
}
|
|
|
|
fe->id = LOC_Y_DELTA;
|
|
fe->value = ms->ms_dy;
|
|
fe->time = time;
|
|
fe++;
|
|
|
|
if (put >= EV_QSIZE) {
|
|
put = 0;
|
|
fe = &ms->ms_events.ev_q[0];
|
|
}
|
|
any = 1;
|
|
|
|
ms->ms_dy = 0;
|
|
}
|
|
out:
|
|
if (any) {
|
|
ms->ms_ub = ub;
|
|
ms->ms_events.ev_put = put;
|
|
EV_WAKEUP(&ms->ms_events);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* reschedule handler, or if terminating,
|
|
* handshake with ms_disable
|
|
*/
|
|
if (ms->ms_ready)
|
|
timeout(msintr, (void *)unit, 2);
|
|
else
|
|
wakeup(ms);
|
|
}
|
|
|
|
int
|
|
msopen(dev, flags, mode, p)
|
|
dev_t dev;
|
|
int flags, mode;
|
|
struct proc *p;
|
|
{
|
|
struct ms_softc *ms;
|
|
int s, error, unit;
|
|
|
|
unit = minor(dev);
|
|
ms = &ms_softc[unit];
|
|
|
|
if (unit >= NMOUSE)
|
|
return(EXDEV);
|
|
|
|
if (ms->ms_events.ev_io)
|
|
return(EBUSY);
|
|
|
|
ms->ms_events.ev_io = p;
|
|
ev_init(&ms->ms_events); /* may cause sleep */
|
|
ms_enable(dev);
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
msclose(dev, flags, mode, p)
|
|
dev_t dev;
|
|
int flags, mode;
|
|
struct proc *p;
|
|
{
|
|
int unit;
|
|
struct ms_softc *ms;
|
|
|
|
unit = minor (dev);
|
|
ms = &ms_softc[unit];
|
|
|
|
ms_disable(dev);
|
|
ev_fini(&ms->ms_events);
|
|
ms->ms_events.ev_io = NULL;
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
msread(dev, uio, flags)
|
|
dev_t dev;
|
|
struct uio *uio;
|
|
int flags;
|
|
{
|
|
struct ms_softc *ms;
|
|
|
|
ms = &ms_softc[minor(dev)];
|
|
return(ev_read(&ms->ms_events, uio, flags));
|
|
}
|
|
|
|
/*
|
|
* XXX this routine should not exist,
|
|
* but is convenient to write here for now
|
|
*/
|
|
int
|
|
mswrite(dev, uio, flags)
|
|
dev_t dev;
|
|
struct uio *uio;
|
|
int flags;
|
|
{
|
|
return(EOPNOTSUPP);
|
|
}
|
|
|
|
int
|
|
msioctl(dev, cmd, data, flag, p)
|
|
dev_t dev;
|
|
u_long cmd;
|
|
register caddr_t data;
|
|
int flag;
|
|
struct proc *p;
|
|
{
|
|
struct ms_softc *ms;
|
|
int unit;
|
|
|
|
unit = minor(dev);
|
|
ms = &ms_softc[unit];
|
|
|
|
switch (cmd) {
|
|
case FIONBIO: /* we will remove this someday (soon???) */
|
|
return(0);
|
|
case FIOASYNC:
|
|
ms->ms_events.ev_async = *(int *)data != 0;
|
|
return(0);
|
|
case TIOCSPGRP:
|
|
if (*(int *)data != ms->ms_events.ev_io->p_pgid)
|
|
return(EPERM);
|
|
return(0);
|
|
case VUIDGFORMAT: /* we only do firm_events */
|
|
*(int *)data = VUID_FIRM_EVENT;
|
|
return(0);
|
|
case VUIDSFORMAT:
|
|
if (*(int *)data != VUID_FIRM_EVENT)
|
|
return(EINVAL);
|
|
return(0);
|
|
}
|
|
return(ENOTTY);
|
|
}
|
|
|
|
int
|
|
msselect(dev, rw, p)
|
|
dev_t dev;
|
|
int rw;
|
|
struct proc *p;
|
|
{
|
|
struct ms_softc *ms;
|
|
|
|
ms = &ms_softc[minor(dev)];
|
|
return(ev_select(&ms->ms_events, rw, p));
|
|
}
|
|
#endif /* NMOUSE > 0 */
|