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diff --git a/sys/dev/mse/mse.c b/sys/dev/mse/mse.c
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-/*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 2004 M. Warner Losh
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- *
- * $FreeBSD$
- */
-
-/*
- * Copyright 1992 by the University of Guelph
- *
- * Permission to use, copy and modify this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies and that both that copyright
- * notice and this permission notice appear in supporting
- * documentation.
- * University of Guelph makes no representations about the suitability of
- * this software for any purpose. It is provided "as is"
- * without express or implied warranty.
- */
-/*
- * Driver for the Logitech and ATI Inport Bus mice for use with 386bsd and
- * the X386 port, courtesy of
- * Rick Macklem, rick@snowhite.cis.uoguelph.ca
- * Caveats: The driver currently uses spltty(), but doesn't use any
- * generic tty code. It could use splmse() (that only masks off the
- * bus mouse interrupt, but that would require hacking in i386/isa/icu.s.
- * (This may be worth the effort, since the Logitech generates 30/60
- * interrupts/sec continuously while it is open.)
- * NB: The ATI has NOT been tested yet!
- */
-
-/*
- * Modification history:
- * Sep 6, 1994 -- Lars Fredriksen(fredriks@mcs.com)
- * improved probe based on input from Logitech.
- *
- * Oct 19, 1992 -- E. Stark (stark@cs.sunysb.edu)
- * fixes to make it work with Microsoft InPort busmouse
- *
- * Jan, 1993 -- E. Stark (stark@cs.sunysb.edu)
- * added patches for new "select" interface
- *
- * May 4, 1993 -- E. Stark (stark@cs.sunysb.edu)
- * changed position of some spl()'s in mseread
- *
- * October 8, 1993 -- E. Stark (stark@cs.sunysb.edu)
- * limit maximum negative x/y value to -127 to work around XFree problem
- * that causes spurious button pushes.
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/conf.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/bus.h>
-#include <sys/poll.h>
-#include <sys/selinfo.h>
-#include <sys/uio.h>
-#include <sys/mouse.h>
-
-#include <machine/bus.h>
-#include <machine/resource.h>
-#include <sys/rman.h>
-
-#include <isa/isavar.h>
-
-#include <dev/mse/msevar.h>
-
-devclass_t mse_devclass;
-
-static d_open_t mseopen;
-static d_close_t mseclose;
-static d_read_t mseread;
-static d_ioctl_t mseioctl;
-static d_poll_t msepoll;
-
-static struct cdevsw mse_cdevsw = {
- .d_version = D_VERSION,
- .d_open = mseopen,
- .d_close = mseclose,
- .d_read = mseread,
- .d_ioctl = mseioctl,
- .d_poll = msepoll,
- .d_name = "mse",
-};
-
-static void mseintr(void *);
-static void mseintr_locked(mse_softc_t *sc);
-static void msetimeout(void *);
-
-#define MSE_NBLOCKIO(dev) (dev2unit(dev) != 0)
-
-#define MSEPRI (PZERO + 3)
-
-int
-mse_common_attach(device_t dev)
-{
- mse_softc_t *sc;
- int unit, flags, rid;
-
- sc = device_get_softc(dev);
- unit = device_get_unit(dev);
- mtx_init(&sc->sc_lock, "mse", NULL, MTX_DEF);
- callout_init_mtx(&sc->sc_callout, &sc->sc_lock, 0);
-
- rid = 0;
- sc->sc_intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
- RF_ACTIVE);
- if (sc->sc_intr == NULL) {
- bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
- mtx_destroy(&sc->sc_lock);
- return ENXIO;
- }
-
- if (bus_setup_intr(dev, sc->sc_intr, INTR_TYPE_TTY | INTR_MPSAFE,
- NULL, mseintr, sc, &sc->sc_ih)) {
- bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
- bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
- mtx_destroy(&sc->sc_lock);
- return ENXIO;
- }
- flags = device_get_flags(dev);
- sc->mode.accelfactor = (flags & MSE_CONFIG_ACCEL) >> 4;
-
- sc->sc_dev = make_dev(&mse_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600,
- "mse%d", unit);
- sc->sc_dev->si_drv1 = sc;
- sc->sc_ndev = make_dev(&mse_cdevsw, 1, UID_ROOT, GID_WHEEL, 0600,
- "nmse%d", unit);
- sc->sc_ndev->si_drv1 = sc;
- gone_in_dev(dev, 12, "mse(4) driver");
-
- return 0;
-}
-
-int
-mse_detach(device_t dev)
-{
- mse_softc_t *sc;
- int rid;
-
- sc = device_get_softc(dev);
- MSE_LOCK(sc);
- if (sc->sc_flags & MSESC_OPEN) {
- MSE_UNLOCK(sc);
- return EBUSY;
- }
-
- /* Sabotage subsequent opens. */
- sc->sc_mousetype = MSE_NONE;
- MSE_UNLOCK(sc);
-
- destroy_dev(sc->sc_dev);
- destroy_dev(sc->sc_ndev);
-
- rid = 0;
- bus_teardown_intr(dev, sc->sc_intr, sc->sc_ih);
- bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
- bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
-
- callout_drain(&sc->sc_callout);
- mtx_destroy(&sc->sc_lock);
-
- return 0;
-}
-
-/*
- * Exclusive open the mouse, initialize it and enable interrupts.
- */
-static int
-mseopen(struct cdev *dev, int flags, int fmt, struct thread *td)
-{
- mse_softc_t *sc = dev->si_drv1;
-
- MSE_LOCK(sc);
- if (sc->sc_mousetype == MSE_NONE) {
- MSE_UNLOCK(sc);
- return (ENXIO);
- }
- if (sc->sc_flags & MSESC_OPEN) {
- MSE_UNLOCK(sc);
- return (EBUSY);
- }
- sc->sc_flags |= MSESC_OPEN;
- sc->sc_obuttons = sc->sc_buttons = MOUSE_MSC_BUTTONS;
- sc->sc_deltax = sc->sc_deltay = 0;
- sc->sc_bytesread = sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
- sc->sc_watchdog = FALSE;
- callout_reset(&sc->sc_callout, hz * 2, msetimeout, dev);
- sc->mode.level = 0;
- sc->status.flags = 0;
- sc->status.button = sc->status.obutton = 0;
- sc->status.dx = sc->status.dy = sc->status.dz = 0;
-
- /*
- * Initialize mouse interface and enable interrupts.
- */
- (*sc->sc_enablemouse)(sc->sc_port);
- MSE_UNLOCK(sc);
- return (0);
-}
-
-/*
- * mseclose: just turn off mouse innterrupts.
- */
-static int
-mseclose(struct cdev *dev, int flags, int fmt, struct thread *td)
-{
- mse_softc_t *sc = dev->si_drv1;
-
- MSE_LOCK(sc);
- callout_stop(&sc->sc_callout);
- (*sc->sc_disablemouse)(sc->sc_port);
- sc->sc_flags &= ~MSESC_OPEN;
- MSE_UNLOCK(sc);
- return(0);
-}
-
-/*
- * mseread: return mouse info using the MSC serial protocol, but without
- * using bytes 4 and 5.
- * (Yes this is cheesy, but it makes the X386 server happy, so...)
- */
-static int
-mseread(struct cdev *dev, struct uio *uio, int ioflag)
-{
- mse_softc_t *sc = dev->si_drv1;
- int xfer, error;
-
- /*
- * If there are no protocol bytes to be read, set up a new protocol
- * packet.
- */
- MSE_LOCK(sc);
- while (sc->sc_flags & MSESC_READING) {
- if (MSE_NBLOCKIO(dev)) {
- MSE_UNLOCK(sc);
- return (0);
- }
- sc->sc_flags |= MSESC_WANT;
- error = mtx_sleep(sc, &sc->sc_lock, MSEPRI | PCATCH, "mseread",
- 0);
- if (error) {
- MSE_UNLOCK(sc);
- return (error);
- }
- }
- sc->sc_flags |= MSESC_READING;
- xfer = 0;
- if (sc->sc_bytesread >= sc->mode.packetsize) {
- while (sc->sc_deltax == 0 && sc->sc_deltay == 0 &&
- (sc->sc_obuttons ^ sc->sc_buttons) == 0) {
- if (MSE_NBLOCKIO(dev))
- goto out;
- sc->sc_flags |= MSESC_WANT;
- error = mtx_sleep(sc, &sc->sc_lock, MSEPRI | PCATCH,
- "mseread", 0);
- if (error)
- goto out;
- }
-
- /*
- * Generate protocol bytes.
- * For some reason X386 expects 5 bytes but never uses
- * the fourth or fifth?
- */
- sc->sc_bytes[0] = sc->mode.syncmask[1]
- | (sc->sc_buttons & ~sc->mode.syncmask[0]);
- if (sc->sc_deltax > 127)
- sc->sc_deltax = 127;
- if (sc->sc_deltax < -127)
- sc->sc_deltax = -127;
- sc->sc_deltay = -sc->sc_deltay; /* Otherwise mousey goes wrong way */
- if (sc->sc_deltay > 127)
- sc->sc_deltay = 127;
- if (sc->sc_deltay < -127)
- sc->sc_deltay = -127;
- sc->sc_bytes[1] = sc->sc_deltax;
- sc->sc_bytes[2] = sc->sc_deltay;
- sc->sc_bytes[3] = sc->sc_bytes[4] = 0;
- sc->sc_bytes[5] = sc->sc_bytes[6] = 0;
- sc->sc_bytes[7] = MOUSE_SYS_EXTBUTTONS;
- sc->sc_obuttons = sc->sc_buttons;
- sc->sc_deltax = sc->sc_deltay = 0;
- sc->sc_bytesread = 0;
- }
- xfer = min(uio->uio_resid, sc->mode.packetsize - sc->sc_bytesread);
- MSE_UNLOCK(sc);
- error = uiomove(&sc->sc_bytes[sc->sc_bytesread], xfer, uio);
- MSE_LOCK(sc);
-out:
- sc->sc_flags &= ~MSESC_READING;
- if (error == 0)
- sc->sc_bytesread += xfer;
- if (sc->sc_flags & MSESC_WANT) {
- sc->sc_flags &= ~MSESC_WANT;
- MSE_UNLOCK(sc);
- wakeup(sc);
- } else
- MSE_UNLOCK(sc);
- return (error);
-}
-
-/*
- * mseioctl: process ioctl commands.
- */
-static int
-mseioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
-{
- mse_softc_t *sc = dev->si_drv1;
- mousestatus_t status;
- int err = 0;
-
- switch (cmd) {
-
- case MOUSE_GETHWINFO:
- MSE_LOCK(sc);
- *(mousehw_t *)addr = sc->hw;
- if (sc->mode.level == 0)
- ((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC;
- MSE_UNLOCK(sc);
- break;
-
- case MOUSE_GETMODE:
- MSE_LOCK(sc);
- *(mousemode_t *)addr = sc->mode;
- switch (sc->mode.level) {
- case 0:
- break;
- case 1:
- ((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE;
- ((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK;
- ((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC;
- break;
- }
- MSE_UNLOCK(sc);
- break;
-
- case MOUSE_SETMODE:
- switch (((mousemode_t *)addr)->level) {
- case 0:
- case 1:
- break;
- default:
- return (EINVAL);
- }
- MSE_LOCK(sc);
- if (((mousemode_t *)addr)->accelfactor < -1) {
- MSE_UNLOCK(sc);
- return (EINVAL);
- } else if (((mousemode_t *)addr)->accelfactor >= 0)
- sc->mode.accelfactor =
- ((mousemode_t *)addr)->accelfactor;
- sc->mode.level = ((mousemode_t *)addr)->level;
- switch (sc->mode.level) {
- case 0:
- sc->sc_bytesread = sc->mode.packetsize
- = MOUSE_MSC_PACKETSIZE;
- break;
- case 1:
- sc->sc_bytesread = sc->mode.packetsize
- = MOUSE_SYS_PACKETSIZE;
- break;
- }
- MSE_UNLOCK(sc);
- break;
-
- case MOUSE_GETLEVEL:
- MSE_LOCK(sc);
- *(int *)addr = sc->mode.level;
- MSE_UNLOCK(sc);
- break;
-
- case MOUSE_SETLEVEL:
- switch (*(int *)addr) {
- case 0:
- MSE_LOCK(sc);
- sc->mode.level = *(int *)addr;
- sc->sc_bytesread = sc->mode.packetsize
- = MOUSE_MSC_PACKETSIZE;
- MSE_UNLOCK(sc);
- break;
- case 1:
- MSE_LOCK(sc);
- sc->mode.level = *(int *)addr;
- sc->sc_bytesread = sc->mode.packetsize
- = MOUSE_SYS_PACKETSIZE;
- MSE_UNLOCK(sc);
- break;
- default:
- return (EINVAL);
- }
- break;
-
- case MOUSE_GETSTATUS:
- MSE_LOCK(sc);
- status = sc->status;
- sc->status.flags = 0;
- sc->status.obutton = sc->status.button;
- sc->status.button = 0;
- sc->status.dx = 0;
- sc->status.dy = 0;
- sc->status.dz = 0;
- MSE_UNLOCK(sc);
- *(mousestatus_t *)addr = status;
- break;
-
- case MOUSE_READSTATE:
- case MOUSE_READDATA:
- return (ENODEV);
-
- default:
- return (ENOTTY);
- }
- return (err);
-}
-
-/*
- * msepoll: check for mouse input to be processed.
- */
-static int
-msepoll(struct cdev *dev, int events, struct thread *td)
-{
- mse_softc_t *sc = dev->si_drv1;
- int revents = 0;
-
- MSE_LOCK(sc);
- if (events & (POLLIN | POLLRDNORM)) {
- if (sc->sc_bytesread != sc->mode.packetsize ||
- sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
- (sc->sc_obuttons ^ sc->sc_buttons) != 0)
- revents |= events & (POLLIN | POLLRDNORM);
- else
- selrecord(td, &sc->sc_selp);
- }
- MSE_UNLOCK(sc);
- return (revents);
-}
-
-/*
- * msetimeout: watchdog timer routine.
- */
-static void
-msetimeout(void *arg)
-{
- struct cdev *dev;
- mse_softc_t *sc;
-
- dev = (struct cdev *)arg;
- sc = dev->si_drv1;
- MSE_ASSERT_LOCKED(sc);
- if (sc->sc_watchdog) {
- if (bootverbose)
- printf("%s: lost interrupt?\n", devtoname(dev));
- mseintr_locked(sc);
- }
- sc->sc_watchdog = TRUE;
- callout_schedule(&sc->sc_callout, hz);
-}
-
-/*
- * mseintr: update mouse status. sc_deltax and sc_deltay are accumulative.
- */
-static void
-mseintr(void *arg)
-{
- mse_softc_t *sc = arg;
-
- MSE_LOCK(sc);
- mseintr_locked(sc);
- MSE_UNLOCK(sc);
-}
-
-static void
-mseintr_locked(mse_softc_t *sc)
-{
- /*
- * the table to turn MouseSystem button bits (MOUSE_MSC_BUTTON?UP)
- * into `mousestatus' button bits (MOUSE_BUTTON?DOWN).
- */
- static int butmap[8] = {
- 0,
- MOUSE_BUTTON3DOWN,
- MOUSE_BUTTON2DOWN,
- MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
- MOUSE_BUTTON1DOWN,
- MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
- MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
- MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
- };
- int dx, dy, but;
- int sign;
-
-#ifdef DEBUG
- static int mse_intrcnt = 0;
- if((mse_intrcnt++ % 10000) == 0)
- printf("mseintr\n");
-#endif /* DEBUG */
- if ((sc->sc_flags & MSESC_OPEN) == 0)
- return;
-
- (*sc->sc_getmouse)(sc->sc_port, &dx, &dy, &but);
- if (sc->mode.accelfactor > 0) {
- sign = (dx < 0);
- dx = dx * dx / sc->mode.accelfactor;
- if (dx == 0)
- dx = 1;
- if (sign)
- dx = -dx;
- sign = (dy < 0);
- dy = dy * dy / sc->mode.accelfactor;
- if (dy == 0)
- dy = 1;
- if (sign)
- dy = -dy;
- }
- sc->sc_deltax += dx;
- sc->sc_deltay += dy;
- sc->sc_buttons = but;
-
- but = butmap[~but & MOUSE_MSC_BUTTONS];
- sc->status.dx += dx;
- sc->status.dy += dy;
- sc->status.flags |= ((dx || dy) ? MOUSE_POSCHANGED : 0)
- | (sc->status.button ^ but);
- sc->status.button = but;
-
- sc->sc_watchdog = FALSE;
-
- /*
- * If mouse state has changed, wake up anyone wanting to know.
- */
- if (sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
- (sc->sc_obuttons ^ sc->sc_buttons) != 0) {
- if (sc->sc_flags & MSESC_WANT) {
- sc->sc_flags &= ~MSESC_WANT;
- wakeup(sc);
- }
- selwakeuppri(&sc->sc_selp, MSEPRI);
- }
-}
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