/* $OpenBSD: dzms.c,v 1.6 2006/07/31 18:50:13 miod Exp $ */ /* $NetBSD: dzms.c,v 1.1 2000/12/02 17:03:55 ragge Exp $ */ /* * 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. 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 */ /* * VSXXX mice attached to line 1 of the DZ* */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * Command characters for the mouse. */ #define MOUSE_SELF_TEST 'T' #define MOUSE_INCREMENTAL 'R' /* * Mouse output bits. * * MOUSE_START_FRAME Start of report frame bit. * MOUSE_X_SIGN Sign bit for X. * MOUSE_Y_SIGN Sign bit for Y. * MOUSE_X_OFFSET X offset to start cursor at. * MOUSE_Y_OFFSET Y offset to start cursor at. */ #define MOUSE_START_FRAME 0x80 #define MOUSE_X_SIGN 0x10 #define MOUSE_Y_SIGN 0x08 /* * Definitions for mouse buttons */ #define RIGHT_BUTTON 0x01 #define MIDDLE_BUTTON 0x02 #define LEFT_BUTTON 0x04 struct dzms_softc { /* driver status information */ struct device dzms_dev; /* required first: base device */ struct dz_linestate *dzms_ls; int sc_enabled; /* input enabled? */ int sc_selftest; int inputstate; u_int buttons; int dx, dy; struct device *sc_wsmousedev; }; int dzms_match(struct device *, struct cfdata *, void *); void dzms_attach(struct device *, struct device *, void *); struct cfattach dzms_ca = { sizeof(struct dzms_softc), (cfmatch_t)dzms_match, dzms_attach, }; struct cfdriver lkms_cd = { NULL, "lkms", DV_DULL }; int dzms_enable(void *); int dzms_ioctl(void *, u_long, caddr_t, int, struct proc *); void dzms_disable(void *); const struct wsmouse_accessops dzms_accessops = { dzms_enable, dzms_ioctl, dzms_disable, }; int dzms_input(void *, int); int dzms_match(struct device *parent, struct cfdata *cf, void *aux) { struct dzkm_attach_args *daa = aux; #define DZCF_LINE 0 #define DZCF_LINE_DEFAULT 1 /* Exact match is better than wildcard. */ if (cf->cf_loc[DZCF_LINE] == daa->daa_line) return 2; /* This driver accepts wildcard. */ if (cf->cf_loc[DZCF_LINE] == DZCF_LINE_DEFAULT) return 1; return 0; } void dzms_attach(struct device *parent, struct device *self, void *aux) { struct dz_softc *dz = (void *)parent; struct dzms_softc *dzms = (void *)self; struct dzkm_attach_args *daa = aux; struct dz_linestate *ls; struct wsmousedev_attach_args a; dz->sc_dz[daa->daa_line].dz_catch = dzms_input; dz->sc_dz[daa->daa_line].dz_private = dzms; ls = &dz->sc_dz[daa->daa_line]; dzms->dzms_ls = ls; printf("\n"); a.accessops = &dzms_accessops; a.accesscookie = dzms; dzms->sc_enabled = 0; dzms->sc_selftest = 0; dzms->sc_wsmousedev = config_found(self, &a, wsmousedevprint); } int dzms_enable(void *v) { struct dzms_softc *sc = v; if (sc->sc_enabled) return EBUSY; sc->sc_selftest = 4; /* wait for 4 byte reply upto 1/2 sec */ dzputc(sc->dzms_ls, MOUSE_SELF_TEST); (void)tsleep(dzms_enable, TTIPRI, "dzmsopen", hz / 2); if (sc->sc_selftest != 0) { sc->sc_selftest = 0; return ENXIO; } DELAY(150); dzputc(sc->dzms_ls, MOUSE_INCREMENTAL); sc->sc_enabled = 1; sc->inputstate = 0; return 0; } void dzms_disable(void *v) { struct dzms_softc *sc = v; sc->sc_enabled = 0; } int dzms_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) { #if 0 struct dzms_softc *sc = v; #endif switch (cmd) { case WSMOUSEIO_GTYPE: *(int *)data = WSMOUSE_TYPE_VSXXX; return 0; } return -1; } int dzms_input(void *vsc, int data) { struct dzms_softc *sc = vsc; if (!sc->sc_enabled) { if (sc->sc_selftest > 0) { sc->sc_selftest--; if (sc->sc_selftest == 0) wakeup(dzms_enable); } return (1); } #define WSMS_BUTTON1 0x01 #define WSMS_BUTTON2 0x02 #define WSMS_BUTTON3 0x04 if ((data & MOUSE_START_FRAME) != 0) sc->inputstate = 1; else sc->inputstate++; if (sc->inputstate == 1) { sc->buttons = 0; if ((data & LEFT_BUTTON) != 0) sc->buttons |= WSMS_BUTTON1; if ((data & MIDDLE_BUTTON) != 0) sc->buttons |= WSMS_BUTTON2; if ((data & RIGHT_BUTTON) != 0) sc->buttons |= WSMS_BUTTON3; sc->dx = data & MOUSE_X_SIGN; sc->dy = data & MOUSE_Y_SIGN; } else if (sc->inputstate == 2) { if (sc->dx == 0) sc->dx = -data; else sc->dx = data; } else if (sc->inputstate == 3) { sc->inputstate = 0; if (sc->dy == 0) sc->dy = -data; else sc->dy = data; wsmouse_input(sc->sc_wsmousedev, sc->buttons, sc->dx, sc->dy, 0, WSMOUSE_INPUT_DELTA); } return (1); }