1 /* $NetBSD: dzms.c,v 1.22 2012/10/27 17:18:15 chs Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)ms.c 8.1 (Berkeley) 6/11/93 41 */ 42 43 /* 44 * VSXXX mice attached to line 1 of the DZ* 45 */ 46 47 #include <sys/cdefs.h> 48 __KERNEL_RCSID(0, "$NetBSD: dzms.c,v 1.22 2012/10/27 17:18:15 chs Exp $"); 49 50 #include <sys/param.h> 51 #include <sys/systm.h> 52 #include <sys/device.h> 53 #include <sys/ioctl.h> 54 #include <sys/syslog.h> 55 #include <sys/kernel.h> 56 #include <sys/proc.h> 57 #include <sys/tty.h> 58 59 #include <sys/bus.h> 60 61 #include <dev/dec/dzreg.h> 62 #include <dev/dec/dzvar.h> 63 #include <dev/dec/dzkbdvar.h> 64 #include <dev/dec/lk201.h> 65 66 #include <dev/wscons/wsconsio.h> 67 #include <dev/wscons/wsmousevar.h> 68 69 #include "locators.h" 70 71 struct dzms_softc { /* driver status information */ 72 struct dz_linestate *dzms_ls; 73 74 int sc_enabled; /* input enabled? */ 75 int sc_selftest; 76 77 int inputstate; 78 u_int buttons; 79 int dx, dy; 80 81 device_t sc_wsmousedev; 82 }; 83 84 static int dzms_match(device_t, cfdata_t, void *); 85 static void dzms_attach(device_t, device_t, void *); 86 static int dzms_input(void *, int); 87 88 CFATTACH_DECL_NEW(dzms, sizeof(struct dzms_softc), 89 dzms_match, dzms_attach, NULL, NULL); 90 91 static int dzms_enable(void *); 92 static int dzms_ioctl(void *, u_long, void *, int, struct lwp *); 93 static void dzms_disable(void *); 94 95 const struct wsmouse_accessops dzms_accessops = { 96 dzms_enable, 97 dzms_ioctl, 98 dzms_disable, 99 }; 100 101 static int 102 dzms_match(device_t parent, cfdata_t cf, void *aux) 103 { 104 struct dzkm_attach_args *daa = aux; 105 106 /* Exact match is better than wildcard. */ 107 if (cf->cf_loc[DZCF_LINE] == daa->daa_line) 108 return 2; 109 110 /* This driver accepts wildcard. */ 111 if (cf->cf_loc[DZCF_LINE] == DZCF_LINE_DEFAULT) 112 return 1; 113 114 return 0; 115 } 116 117 static void 118 dzms_attach(device_t parent, device_t self, void *aux) 119 { 120 struct dz_softc *dz = device_private(parent); 121 struct dzms_softc *dzms = device_private(self); 122 struct dzkm_attach_args *daa = aux; 123 struct dz_linestate *ls; 124 struct wsmousedev_attach_args a; 125 126 dz->sc_dz[daa->daa_line].dz_catch = dzms_input; 127 dz->sc_dz[daa->daa_line].dz_private = dzms; 128 ls = &dz->sc_dz[daa->daa_line]; 129 dzms->dzms_ls = ls; 130 131 printf("\n"); 132 133 a.accessops = &dzms_accessops; 134 a.accesscookie = dzms; 135 136 dzms->sc_enabled = 0; 137 dzms->sc_selftest = 0; 138 dzms->sc_wsmousedev = config_found(self, &a, wsmousedevprint); 139 } 140 141 static int 142 dzms_enable(void *v) 143 { 144 struct dzms_softc *sc = v; 145 146 if (sc->sc_enabled) 147 return EBUSY; 148 149 sc->sc_selftest = 4; /* wait for 4 byte reply upto 1/2 sec */ 150 dzputc(sc->dzms_ls, MOUSE_SELF_TEST); 151 (void)tsleep(dzms_enable, TTIPRI, "dzmsopen", hz / 2); 152 if (sc->sc_selftest != 0) { 153 sc->sc_selftest = 0; 154 return ENXIO; 155 } 156 DELAY(150); 157 dzputc(sc->dzms_ls, MOUSE_INCREMENTAL); 158 sc->sc_enabled = 1; 159 sc->inputstate = 0; 160 return 0; 161 } 162 163 static void 164 dzms_disable(void *v) 165 { 166 struct dzms_softc *sc = v; 167 168 sc->sc_enabled = 0; 169 } 170 171 static int 172 dzms_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 173 { 174 if (cmd == WSMOUSEIO_GTYPE) { 175 *(u_int *)data = WSMOUSE_TYPE_VSXXX; 176 return 0; 177 } 178 return EPASSTHROUGH; 179 } 180 181 static int 182 dzms_input(void *vsc, int data) 183 { 184 struct dzms_softc *sc = vsc; 185 186 if (sc->sc_enabled == 0) { 187 if (sc->sc_selftest > 0) { 188 sc->sc_selftest -= 1; 189 if (sc->sc_selftest == 0) 190 wakeup(dzms_enable); 191 } 192 return (1); 193 } 194 195 #define WSMS_BUTTON1 0x01 196 #define WSMS_BUTTON2 0x02 197 #define WSMS_BUTTON3 0x04 198 199 if ((data & MOUSE_START_FRAME) != 0) 200 sc->inputstate = 1; 201 else 202 sc->inputstate++; 203 204 if (sc->inputstate == 1) { 205 sc->buttons = 0; 206 if ((data & LEFT_BUTTON) != 0) 207 sc->buttons |= WSMS_BUTTON1; 208 if ((data & MIDDLE_BUTTON) != 0) 209 sc->buttons |= WSMS_BUTTON2; 210 if ((data & RIGHT_BUTTON) != 0) 211 sc->buttons |= WSMS_BUTTON3; 212 213 sc->dx = data & MOUSE_X_SIGN; 214 sc->dy = data & MOUSE_Y_SIGN; 215 } else if (sc->inputstate == 2) { 216 if (sc->dx == 0) 217 sc->dx = -data; 218 else 219 sc->dx = data; 220 } else if (sc->inputstate == 3) { 221 sc->inputstate = 0; 222 if (sc->dy == 0) 223 sc->dy = -data; 224 else 225 sc->dy = data; 226 wsmouse_input(sc->sc_wsmousedev, 227 sc->buttons, 228 sc->dx, sc->dy, 0, 0, 229 WSMOUSE_INPUT_DELTA); 230 } 231 232 return(1); 233 } 234 235