428 lines
9.8 KiB
C
428 lines
9.8 KiB
C
/* $NetBSD: ms.c,v 1.11 2002/09/06 13:18:43 gehenna Exp $ */
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/*
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* Copyright (c) 1995 Leo Weppelman.
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* All rights reserved.
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*
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* based on:
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*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* 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, Lawrence Berkeley Laboratory.
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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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* @(#)ms.c 8.1 (Berkeley) 6/11/93
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*
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* Header: ms.c,v 1.5 92/11/26 01:28:47 torek Exp (LBL)
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*/
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/*
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* Mouse driver.
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*/
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/ioctl.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/systm.h>
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#include <sys/callout.h>
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#include <sys/tty.h>
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#include <sys/signalvar.h>
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#include <machine/msioctl.h>
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#include <atari/dev/event_var.h>
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#include <atari/dev/vuid_event.h>
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#include <atari/dev/kbdvar.h>
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#include <atari/dev/msvar.h>
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#include "mouse.h"
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#if NMOUSE > 0
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/* there's really no more physical ports on an atari. */
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#if NMOUSE > 1
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#undef NMOUSE
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#define NMOUSE 1
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#endif
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typedef void (*FPV) __P((void *));
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static struct ms_softc ms_softc[NMOUSE];
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dev_type_open(msopen);
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dev_type_close(msclose);
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dev_type_read(msread);
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dev_type_ioctl(msioctl);
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dev_type_poll(mspoll);
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const struct cdevsw ms_cdevsw = {
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msopen, msclose, msread, nowrite, msioctl,
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nostop, notty, mspoll, nommap,
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};
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static void ms_3b_delay __P((struct ms_softc *));
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int
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mouseattach(cnt)
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int cnt;
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{
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printf("1 mouse configured\n");
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ms_softc[0].ms_emul3b = 1;
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callout_init(&ms_softc[0].ms_delay_ch);
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return(NMOUSE);
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}
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static void
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ms_3b_delay(ms)
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struct ms_softc *ms;
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{
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REL_MOUSE rel_ms;
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rel_ms.id = TIMEOUT_ID;
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rel_ms.dx = rel_ms.dy = 0;
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mouse_soft(&rel_ms, sizeof(rel_ms), KBD_TIMEO_PKG);
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}
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/*
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* Note that we are called from the keyboard software interrupt!
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*/
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void
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mouse_soft(rel_ms, size, type)
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REL_MOUSE *rel_ms;
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int size, type;
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{
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struct ms_softc *ms = &ms_softc[0];
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struct firm_event *fe, *fe2;
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REL_MOUSE fake_mouse;
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int get, put;
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int sps;
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u_char mbut, bmask;
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int flush_buttons;
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if (ms->ms_events.ev_io == NULL)
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return;
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switch (type) {
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case KBD_JOY1_PKG:
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/*
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* Ignore if in emulation mode
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*/
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if (ms->ms_emul3b)
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return;
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/*
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* There are some mice that have their middle button
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* wired to the 'up' bit of joystick 1....
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* Simulate a mouse packet with dx = dy = 0, the middle
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* button state set by UP and the other buttons unchanged.
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* Flush all button changes.
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*/
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flush_buttons = 1;
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fake_mouse.id = (rel_ms->dx & 1 ? 4 : 0) | (ms->ms_buttons & 3);
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fake_mouse.dx = fake_mouse.dy = 0;
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rel_ms = &fake_mouse;
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break;
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case KBD_TIMEO_PKG:
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/*
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* Timeout package. No button changes and no movement.
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* Flush all button changes.
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*/
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flush_buttons = 1;
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fake_mouse.id = ms->ms_buttons;
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fake_mouse.dx = fake_mouse.dy = 0;
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rel_ms = &fake_mouse;
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break;
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case KBD_RMS_PKG:
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/*
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* Normal mouse package. Always copy the middle button
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* status. The emulation code decides if button changes
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* must be flushed.
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*/
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rel_ms->id = (ms->ms_buttons & 4) | (rel_ms->id & 3);
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flush_buttons = (ms->ms_emul3b) ? 0 : 1;
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break;
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default:
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return;
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}
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sps = splev();
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get = ms->ms_events.ev_get;
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put = ms->ms_events.ev_put;
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fe = &ms->ms_events.ev_q[put];
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if ((type != KBD_TIMEO_PKG) && ms->ms_emul3b && ms->ms_bq_idx)
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callout_stop(&ms->ms_delay_ch);
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/*
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* Button states are encoded in the lower 3 bits of 'id'
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*/
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if (!(mbut = (rel_ms->id ^ ms->ms_buttons)) && (put != get)) {
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/*
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* Compact dx/dy messages. Always generate an event when
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* a button is pressed or the event queue is empty.
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*/
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ms->ms_dx += rel_ms->dx;
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ms->ms_dy += rel_ms->dy;
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goto out;
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}
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rel_ms->dx += ms->ms_dx;
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rel_ms->dy += ms->ms_dy;
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ms->ms_dx = ms->ms_dy = 0;
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/*
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* Output location events _before_ button events ie. make sure
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* the button is pressed at the correct location.
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*/
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if (rel_ms->dx) {
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if ((++put) % EV_QSIZE == get) {
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put--;
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goto out;
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}
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fe->id = LOC_X_DELTA;
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fe->value = rel_ms->dx;
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fe->time = time;
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if (put >= EV_QSIZE) {
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put = 0;
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fe = &ms->ms_events.ev_q[0];
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}
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else fe++;
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}
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if (rel_ms->dy) {
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if ((++put) % EV_QSIZE == get) {
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put--;
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goto out;
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}
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fe->id = LOC_Y_DELTA;
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fe->value = rel_ms->dy;
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fe->time = time;
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if (put >= EV_QSIZE) {
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put = 0;
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fe = &ms->ms_events.ev_q[0];
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}
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else fe++;
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}
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if (mbut && (type != KBD_TIMEO_PKG)) {
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for (bmask = 1; bmask < 0x08; bmask <<= 1) {
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if (!(mbut & bmask))
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continue;
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fe2 = &ms->ms_bq[ms->ms_bq_idx++];
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if (bmask == 1)
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fe2->id = MS_RIGHT;
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else if (bmask == 2)
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fe2->id = MS_LEFT;
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else fe2->id = MS_MIDDLE;
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fe2->value = rel_ms->id & bmask ? VKEY_DOWN : VKEY_UP;
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fe2->time = time;
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}
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}
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/*
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* Handle 3rd button emulation.
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*/
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if (ms->ms_emul3b && ms->ms_bq_idx && (type != KBD_TIMEO_PKG)) {
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/*
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* If the middle button is pressed, any change to
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* one of the other buttons releases all.
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*/
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if ((ms->ms_buttons & 4) && (mbut & 3)) {
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ms->ms_bq[0].id = MS_MIDDLE;
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ms->ms_bq_idx = 1;
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rel_ms->id = 0;
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flush_buttons = 1;
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goto out;
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}
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if (ms->ms_bq_idx == 2) {
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if (ms->ms_bq[0].value == ms->ms_bq[1].value) {
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/* Must be 2 button presses! */
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ms->ms_bq[0].id = MS_MIDDLE;
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ms->ms_bq_idx = 1;
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rel_ms->id = 7;
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}
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}
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else if (ms->ms_bq[0].value == VKEY_DOWN) {
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callout_reset(&ms->ms_delay_ch, 10,
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(FPV)ms_3b_delay, (void *)ms);
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goto out;
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}
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flush_buttons = 1;
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}
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out:
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if (flush_buttons) {
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int i;
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for (i = 0; i < ms->ms_bq_idx; i++) {
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if ((++put) % EV_QSIZE == get) {
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ms->ms_bq_idx = 0;
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put--;
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goto out;
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}
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*fe = ms->ms_bq[i];
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if (put >= EV_QSIZE) {
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put = 0;
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fe = &ms->ms_events.ev_q[0];
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}
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else fe++;
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}
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ms->ms_bq_idx = 0;
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}
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ms->ms_events.ev_put = put;
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ms->ms_buttons = rel_ms->id;
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splx(sps);
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EV_WAKEUP(&ms->ms_events);
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}
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int
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msopen(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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u_char report_ms_joy[] = { 0x14, 0x08 };
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struct ms_softc *ms;
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int unit;
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unit = minor(dev);
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ms = &ms_softc[unit];
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if (unit >= NMOUSE)
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return(EXDEV);
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if (ms->ms_events.ev_io)
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return(EBUSY);
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ms->ms_events.ev_io = p;
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ms->ms_dx = ms->ms_dy = 0;
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ms->ms_buttons = 0;
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ms->ms_bq[0].id = ms->ms_bq[1].id = 0;
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ms->ms_bq_idx = 0;
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ev_init(&ms->ms_events); /* may cause sleep */
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/*
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* Enable mouse reporting.
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*/
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kbd_write(report_ms_joy, sizeof(report_ms_joy));
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return(0);
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}
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int
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msclose(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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u_char disable_ms_joy[] = { 0x12, 0x1a };
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int unit;
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struct ms_softc *ms;
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unit = minor (dev);
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ms = &ms_softc[unit];
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/*
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* Turn off mouse interrogation.
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*/
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kbd_write(disable_ms_joy, sizeof(disable_ms_joy));
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ev_fini(&ms->ms_events);
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ms->ms_events.ev_io = NULL;
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return(0);
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}
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int
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msread(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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struct ms_softc *ms;
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ms = &ms_softc[minor(dev)];
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return(ev_read(&ms->ms_events, uio, flags));
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}
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int
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msioctl(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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struct ms_softc *ms;
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int unit;
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unit = minor(dev);
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ms = &ms_softc[unit];
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switch (cmd) {
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case MIOCS3B_EMUL:
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ms->ms_emul3b = (*(int *)data != 0) ? 1 : 0;
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return (0);
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case MIOCG3B_EMUL:
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*(int *)data = ms->ms_emul3b;
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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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ms->ms_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 != ms->ms_events.ev_io->p_pgid)
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return(EPERM);
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return(0);
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case VUIDGFORMAT: /* we only do firm_events */
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*(int *)data = VUID_FIRM_EVENT;
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return(0);
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case VUIDSFORMAT:
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if (*(int *)data != VUID_FIRM_EVENT)
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return(EINVAL);
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return(0);
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}
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return(ENOTTY);
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}
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int
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mspoll(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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struct ms_softc *ms;
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ms = &ms_softc[minor(dev)];
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return(ev_poll(&ms->ms_events, events, p));
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}
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#endif /* NMOUSE > 0 */
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