686 lines
15 KiB
C
686 lines
15 KiB
C
/*-
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* Copyright (C) 2008 Nathan Whitehorn
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/mouse.h>
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#include <sys/poll.h>
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#include <sys/condvar.h>
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#include <sys/selinfo.h>
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#include <sys/sysctl.h>
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#include <sys/uio.h>
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#include <sys/fcntl.h>
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#include <sys/kernel.h>
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#include <machine/bus.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include "adb.h"
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#define CDEV_GET_SOFTC(x) (x)->si_drv1
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static int adb_mouse_probe(device_t dev);
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static int adb_mouse_attach(device_t dev);
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static int adb_mouse_detach(device_t dev);
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static void adb_init_trackpad(device_t dev);
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static int adb_tapping_sysctl(SYSCTL_HANDLER_ARGS);
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static d_open_t ams_open;
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static d_close_t ams_close;
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static d_read_t ams_read;
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static d_ioctl_t ams_ioctl;
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static d_poll_t ams_poll;
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static u_int adb_mouse_receive_packet(device_t dev, u_char status,
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u_char command, u_char reg, int len, u_char *data);
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struct adb_mouse_softc {
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device_t sc_dev;
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struct mtx sc_mtx;
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struct cv sc_cv;
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int flags;
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#define AMS_EXTENDED 0x1
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#define AMS_TOUCHPAD 0x2
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uint16_t dpi;
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mousehw_t hw;
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mousemode_t mode;
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u_char id[4];
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int buttons;
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u_int sc_tapping;
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int button_buf;
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int last_buttons;
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int xdelta, ydelta;
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int8_t packet[8];
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size_t packet_read_len;
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struct cdev *cdev;
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struct selinfo rsel;
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};
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static device_method_t adb_mouse_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, adb_mouse_probe),
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DEVMETHOD(device_attach, adb_mouse_attach),
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DEVMETHOD(device_detach, adb_mouse_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* ADB interface */
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DEVMETHOD(adb_receive_packet, adb_mouse_receive_packet),
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{ 0, 0 }
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};
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static driver_t adb_mouse_driver = {
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"ams",
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adb_mouse_methods,
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sizeof(struct adb_mouse_softc),
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};
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static devclass_t adb_mouse_devclass;
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DRIVER_MODULE(ams, adb, adb_mouse_driver, adb_mouse_devclass, 0, 0);
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static struct cdevsw ams_cdevsw = {
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.d_version = D_VERSION,
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.d_flags = 0,
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.d_open = ams_open,
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.d_close = ams_close,
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.d_read = ams_read,
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.d_ioctl = ams_ioctl,
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.d_poll = ams_poll,
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.d_name = "ams",
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};
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static int
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adb_mouse_probe(device_t dev)
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{
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uint8_t type;
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type = adb_get_device_type(dev);
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if (type != ADB_DEVICE_MOUSE)
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return (ENXIO);
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device_set_desc(dev,"ADB Mouse");
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return (0);
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}
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static int
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adb_mouse_attach(device_t dev)
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{
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struct adb_mouse_softc *sc;
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char *description = "Unknown Pointing Device";
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size_t r1_len;
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u_char r1[8];
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sc = device_get_softc(dev);
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sc->sc_dev = dev;
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mtx_init(&sc->sc_mtx,"ams",MTX_DEF,0);
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cv_init(&sc->sc_cv,"ams");
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sc->flags = 0;
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sc->hw.buttons = 2;
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sc->hw.iftype = MOUSE_IF_UNKNOWN;
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sc->hw.type = MOUSE_UNKNOWN;
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sc->hw.model = sc->hw.hwid = 0;
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sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
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sc->mode.rate = -1;
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sc->mode.resolution = 100;
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sc->mode.accelfactor = 0;
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sc->mode.level = 0;
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sc->mode.packetsize = 5;
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sc->buttons = 0;
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sc->sc_tapping = 0;
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sc->button_buf = 0;
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sc->last_buttons = 0;
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sc->packet_read_len = 0;
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/* Try to switch to extended protocol */
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adb_set_device_handler(dev,4);
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switch(adb_get_device_handler(dev)) {
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case 1:
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sc->mode.resolution = 100;
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break;
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case 2:
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sc->mode.resolution = 200;
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break;
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case 4:
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r1_len = adb_read_register(dev,1,r1);
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if (r1_len < 8)
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break;
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sc->flags |= AMS_EXTENDED;
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memcpy(&sc->hw.hwid,r1,4);
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sc->mode.resolution = (r1[4] << 8) | r1[5];
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switch (r1[6]) {
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case 0:
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sc->hw.type = MOUSE_PAD;
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description = "Tablet";
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break;
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case 1:
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sc->hw.type = MOUSE_MOUSE;
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description = "Mouse";
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break;
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case 2:
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sc->hw.type = MOUSE_TRACKBALL;
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description = "Trackball";
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break;
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case 3:
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sc->flags |= AMS_TOUCHPAD;
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sc->hw.type = MOUSE_PAD;
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adb_init_trackpad(dev);
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description = "Touchpad";
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break;
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}
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sc->hw.buttons = r1[7];
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device_printf(dev,"%d-button %d-dpi %s\n",
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sc->hw.buttons, sc->mode.resolution,description);
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/*
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* Check for one of MacAlly's non-compliant 2-button mice.
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* These claim to speak the extended mouse protocol, but
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* instead speak the standard protocol and only when their
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* handler is set to 0x42.
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*/
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if (sc->hw.hwid == 0x4b4f4954) {
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adb_set_device_handler(dev,0x42);
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if (adb_get_device_handler(dev) == 0x42) {
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device_printf(dev, "MacAlly 2-Button Mouse\n");
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sc->flags &= ~AMS_EXTENDED;
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}
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}
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break;
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}
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sc->cdev = make_dev(&ams_cdevsw, device_get_unit(dev),
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UID_ROOT, GID_OPERATOR, 0644, "ams%d",
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device_get_unit(dev));
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sc->cdev->si_drv1 = sc;
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adb_set_autopoll(dev,1);
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return (0);
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}
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static int
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adb_mouse_detach(device_t dev)
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{
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struct adb_mouse_softc *sc;
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adb_set_autopoll(dev,0);
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sc = device_get_softc(dev);
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destroy_dev(sc->cdev);
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mtx_destroy(&sc->sc_mtx);
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cv_destroy(&sc->sc_cv);
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return (0);
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}
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static void
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adb_init_trackpad(device_t dev)
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{
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struct adb_mouse_softc *sc;
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struct sysctl_ctx_list *ctx;
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struct sysctl_oid *tree;
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size_t r1_len;
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u_char r1[8];
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u_char r2[8];
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sc = device_get_softc(dev);
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r1_len = adb_read_register(dev, 1, r1);
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/* An Extended Mouse register1 must return 8 bytes. */
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if (r1_len != 8)
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return;
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if((r1[6] != 0x0d))
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{
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r1[6] = 0x0d;
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adb_write_register(dev, 1, 8, r1);
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r1_len = adb_read_register(dev, 1, r1);
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if (r1[6] != 0x0d)
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{
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device_printf(dev, "ADB Mouse = 0x%x "
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"(non-Extended Mode)\n", r1[6]);
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return;
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} else {
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device_printf(dev, "ADB Mouse = 0x%x "
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"(Extended Mode)\n", r1[6]);
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/* Set ADB Extended Features to default values,
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enabled. */
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r2[0] = 0x19; /* Clicking: 0x19 disabled 0x99 enabled */
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r2[1] = 0x94; /* Dragging: 0x14 disabled 0x94 enabled */
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r2[2] = 0x19;
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r2[3] = 0xff; /* DragLock: 0xff disabled 0xb2 enabled */
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r2[4] = 0xb2;
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r2[5] = 0x8a;
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r2[6] = 0x1b;
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r2[7] = 0x57; /* 0x57 bits 3:0 for W mode */
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adb_write_register(dev, 2, 8, r2);
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}
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}
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/*
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* Set up sysctl
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*/
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ctx = device_get_sysctl_ctx(dev);
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tree = device_get_sysctl_tree(dev);
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SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "tapping",
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CTLTYPE_INT | CTLFLAG_RW, sc, 0, adb_tapping_sysctl,
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"I", "Tapping the pad causes button events");
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return;
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}
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static u_int
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adb_mouse_receive_packet(device_t dev, u_char status, u_char command,
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u_char reg, int len, u_char *data)
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{
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struct adb_mouse_softc *sc;
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int i = 0;
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int xdelta, ydelta;
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int buttons, tmp_buttons;
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sc = device_get_softc(dev);
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if (command != ADB_COMMAND_TALK || reg != 0 || len < 2)
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return (0);
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ydelta = data[0] & 0x7f;
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xdelta = data[1] & 0x7f;
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buttons = 0;
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buttons |= !(data[0] & 0x80);
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buttons |= !(data[1] & 0x80) << 1;
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if (sc->flags & AMS_EXTENDED) {
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for (i = 2; i < len && i < 5; i++) {
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xdelta |= (data[i] & 0x07) << (3*i + 1);
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ydelta |= (data[i] & 0x70) << (3*i - 3);
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buttons |= !(data[i] & 0x08) << (2*i - 2);
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buttons |= !(data[i] & 0x80) << (2*i - 1);
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}
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} else {
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len = 2; /* Ignore extra data */
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}
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/* Do sign extension as necessary */
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if (xdelta & (0x40 << 3*(len-2)))
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xdelta |= 0xffffffc0 << 3*(len - 2);
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if (ydelta & (0x40 << 3*(len-2)))
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ydelta |= 0xffffffc0 << 3*(len - 2);
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if ((sc->flags & AMS_TOUCHPAD) && (sc->sc_tapping == 1)) {
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tmp_buttons = buttons;
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if (buttons == 0x12) {
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/* Map a double tap on button 3.
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Keep the button state for the next sequence.
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A double tap sequence is followed by a single tap
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sequence.
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*/
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tmp_buttons = 0x3;
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sc->button_buf = tmp_buttons;
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} else if (buttons == 0x2) {
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/* Map a single tap on button 2. But only if it is
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not a successor from a double tap.
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*/
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if (sc->button_buf != 0x3)
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tmp_buttons = 0x2;
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else
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tmp_buttons = 0;
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sc->button_buf = 0;
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}
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buttons = tmp_buttons;
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}
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/*
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* Some mice report high-numbered buttons on the wrong button number,
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* so set the highest-numbered real button as pressed if there are
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* mysterious high-numbered ones set.
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*
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* Don't do this for touchpads, because touchpads also trigger
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* high button events when they are touched.
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*/
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if (buttons & ~((1 << sc->hw.buttons) - 1)
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&& !(sc->flags & AMS_TOUCHPAD)) {
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buttons |= 1 << (sc->hw.buttons - 1);
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}
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buttons &= (1 << sc->hw.buttons) - 1;
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mtx_lock(&sc->sc_mtx);
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/* Add in our new deltas, and take into account
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Apple's opposite meaning for Y axis motion */
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sc->xdelta += xdelta;
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sc->ydelta -= ydelta;
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sc->buttons = buttons;
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mtx_unlock(&sc->sc_mtx);
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cv_broadcast(&sc->sc_cv);
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selwakeuppri(&sc->rsel, PZERO);
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return (0);
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}
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static int
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ams_open(struct cdev *dev, int flag, int fmt, struct thread *p)
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{
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struct adb_mouse_softc *sc;
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sc = CDEV_GET_SOFTC(dev);
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if (sc == NULL)
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return (ENXIO);
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mtx_lock(&sc->sc_mtx);
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sc->packet_read_len = 0;
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sc->xdelta = 0;
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sc->ydelta = 0;
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sc->buttons = 0;
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mtx_unlock(&sc->sc_mtx);
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return (0);
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}
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static int
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ams_close(struct cdev *dev, int flag, int fmt, struct thread *p)
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{
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struct adb_mouse_softc *sc;
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sc = CDEV_GET_SOFTC(dev);
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cv_broadcast(&sc->sc_cv);
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selwakeuppri(&sc->rsel, PZERO);
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return (0);
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}
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static int
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ams_poll(struct cdev *dev, int events, struct thread *p)
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{
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struct adb_mouse_softc *sc;
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sc = CDEV_GET_SOFTC(dev);
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if (sc == NULL)
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return (EIO);
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if (events & (POLLIN | POLLRDNORM)) {
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mtx_lock(&sc->sc_mtx);
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if (sc->xdelta == 0 && sc->ydelta == 0 &&
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sc->buttons == sc->last_buttons) {
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selrecord(p, &sc->rsel);
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events = 0;
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} else {
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events &= (POLLIN | POLLRDNORM);
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}
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mtx_unlock(&sc->sc_mtx);
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}
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return events;
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}
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static int
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ams_read(struct cdev *dev, struct uio *uio, int flag)
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{
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struct adb_mouse_softc *sc;
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size_t len;
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int8_t outpacket[8];
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int error;
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sc = CDEV_GET_SOFTC(dev);
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if (sc == NULL)
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return (EIO);
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if (uio->uio_resid <= 0)
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return (0);
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mtx_lock(&sc->sc_mtx);
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if (!sc->packet_read_len) {
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if (sc->xdelta == 0 && sc->ydelta == 0 &&
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sc->buttons == sc->last_buttons) {
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if (flag & O_NONBLOCK) {
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mtx_unlock(&sc->sc_mtx);
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return EWOULDBLOCK;
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}
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/* Otherwise, block on new data */
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error = cv_wait_sig(&sc->sc_cv, &sc->sc_mtx);
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if (error) {
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mtx_unlock(&sc->sc_mtx);
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return (error);
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}
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}
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sc->packet[0] = 1 << 7;
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sc->packet[0] |= (!(sc->buttons & 1)) << 2;
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sc->packet[0] |= (!(sc->buttons & 4)) << 1;
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sc->packet[0] |= (!(sc->buttons & 2));
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if (sc->xdelta > 127) {
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sc->packet[1] = 127;
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sc->packet[3] = sc->xdelta - 127;
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} else if (sc->xdelta < -127) {
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sc->packet[1] = -127;
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sc->packet[3] = sc->xdelta + 127;
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} else {
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sc->packet[1] = sc->xdelta;
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sc->packet[3] = 0;
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}
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if (sc->ydelta > 127) {
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sc->packet[2] = 127;
|
|
sc->packet[4] = sc->ydelta - 127;
|
|
} else if (sc->ydelta < -127) {
|
|
sc->packet[2] = -127;
|
|
sc->packet[4] = sc->ydelta + 127;
|
|
} else {
|
|
sc->packet[2] = sc->ydelta;
|
|
sc->packet[4] = 0;
|
|
}
|
|
|
|
/* No Z movement */
|
|
sc->packet[5] = 0;
|
|
sc->packet[6] = 0;
|
|
|
|
sc->packet[7] = ~((uint8_t)(sc->buttons >> 3)) & 0x7f;
|
|
|
|
|
|
sc->last_buttons = sc->buttons;
|
|
sc->xdelta = 0;
|
|
sc->ydelta = 0;
|
|
|
|
sc->packet_read_len = sc->mode.packetsize;
|
|
}
|
|
|
|
len = (sc->packet_read_len > uio->uio_resid) ?
|
|
uio->uio_resid : sc->packet_read_len;
|
|
|
|
memcpy(outpacket,sc->packet +
|
|
(sc->mode.packetsize - sc->packet_read_len),len);
|
|
sc->packet_read_len -= len;
|
|
|
|
mtx_unlock(&sc->sc_mtx);
|
|
|
|
uiomove(outpacket,len,uio);
|
|
|
|
return (0);
|
|
}
|
|
|
|
|
|
static int
|
|
ams_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag,
|
|
struct thread *p)
|
|
{
|
|
struct adb_mouse_softc *sc;
|
|
mousemode_t mode;
|
|
|
|
sc = CDEV_GET_SOFTC(dev);
|
|
if (sc == NULL)
|
|
return (EIO);
|
|
|
|
switch (cmd) {
|
|
case MOUSE_GETHWINFO:
|
|
*(mousehw_t *)addr = sc->hw;
|
|
break;
|
|
case MOUSE_GETMODE:
|
|
*(mousemode_t *)addr = sc->mode;
|
|
break;
|
|
case MOUSE_SETMODE:
|
|
mode = *(mousemode_t *)addr;
|
|
addr = (caddr_t)&mode.level;
|
|
|
|
/* Fallthrough */
|
|
|
|
case MOUSE_SETLEVEL:
|
|
if (*(int *)addr == -1)
|
|
break;
|
|
else if (*(int *)addr == 1) {
|
|
sc->mode.level = 1;
|
|
sc->mode.packetsize = 8;
|
|
break;
|
|
} else if (*(int *)addr == 0) {
|
|
sc->mode.level = 0;
|
|
sc->mode.packetsize = 5;
|
|
break;
|
|
}
|
|
|
|
return EINVAL;
|
|
case MOUSE_GETLEVEL:
|
|
*(int *)addr = sc->mode.level;
|
|
break;
|
|
|
|
case MOUSE_GETSTATUS: {
|
|
mousestatus_t *status = (mousestatus_t *) addr;
|
|
|
|
mtx_lock(&sc->sc_mtx);
|
|
|
|
status->button = sc->buttons;
|
|
status->obutton = sc->last_buttons;
|
|
|
|
status->flags = status->button ^ status->obutton;
|
|
|
|
if (sc->xdelta != 0 || sc->ydelta)
|
|
status->flags |= MOUSE_POSCHANGED;
|
|
if (status->button != status->obutton)
|
|
status->flags |= MOUSE_BUTTONSCHANGED;
|
|
|
|
status->dx = sc->xdelta;
|
|
status->dy = sc->ydelta;
|
|
status->dz = 0;
|
|
|
|
sc->xdelta = 0;
|
|
sc->ydelta = 0;
|
|
sc->last_buttons = sc->buttons;
|
|
|
|
mtx_unlock(&sc->sc_mtx);
|
|
|
|
break; }
|
|
default:
|
|
return ENOTTY;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
adb_tapping_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct adb_mouse_softc *sc = arg1;
|
|
device_t dev;
|
|
int error;
|
|
u_char r2[8];
|
|
u_int tapping;
|
|
|
|
dev = sc->sc_dev;
|
|
tapping = sc->sc_tapping;
|
|
|
|
error = sysctl_handle_int(oidp, &tapping, 0, req);
|
|
|
|
if (error || !req->newptr)
|
|
return (error);
|
|
|
|
if (tapping == 1) {
|
|
adb_read_register(dev, 2, r2);
|
|
r2[0] = 0x99; /* enable tapping. */
|
|
adb_write_register(dev, 2, 8, r2);
|
|
sc->sc_tapping = 1;
|
|
} else if (tapping == 0) {
|
|
adb_read_register(dev, 2, r2);
|
|
r2[0] = 0x19; /* disable tapping. */
|
|
adb_write_register(dev, 2, 8, r2);
|
|
sc->sc_tapping = 0;
|
|
}
|
|
else
|
|
return (EINVAL);
|
|
|
|
return (0);
|
|
}
|