1 /* $NetBSD: vsxxx.c,v 1.11 2009/03/14 21:04:19 dsl Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tohru Nishimura. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: vsxxx.c,v 1.11 2009/03/14 21:04:19 dsl Exp $"); 34 35 /* 36 * Common machinary for VSXXX mice and tablet 37 */ 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/device.h> 42 43 #include <dev/wscons/wsconsio.h> 44 #include <dev/wscons/wsmousevar.h> 45 46 #include <dev/dec/vsxxxvar.h> 47 48 /* 49 * XXX XXX XXX 50 * 51 * collect various mice and tablet parameters/protocol design 52 * and establish vsxxx.h 53 * 54 * XXX XXX XXX 55 */ 56 #define VS_SELFTEST 'T' 57 #define VS_INCREMENTAL 'R' 58 #define VS_PROMPTING 'D' 59 #define VS_REQ_POSITION 'P' 60 61 #define VS_MOUSE_REPSZ 3 62 #define VS_TABLET_REPSZ 5 63 64 /* first octet */ 65 #define VS_START_FRAME 0x80 66 #define VS_R_BUTTON 0x01 67 #define VS_M_BUTTON 0x02 68 #define VS_L_BUTTON 0x04 69 #define VS_Y_SIGN 0x08 70 #define VS_X_SIGN 0x10 71 72 /* low order 4 bit of the second octet in a SELFTEST reply */ 73 #define VS_MOUSE 0x2 74 #define VS_TABLET 0x4 75 76 extern struct cfdriver vsms_cd; 77 78 static int vsxxx_enable(void *); 79 static int vsxxx_ioctl(void *, u_long, void *, int, struct proc *); 80 static void vsxxx_disable(void *); 81 82 struct wsmouse_accessops vsxxx_accessops = { /* EXPORT */ 83 vsxxx_enable, /* MD? */ 84 vsxxx_ioctl, 85 vsxxx_disable, /* MD? */ 86 }; 87 88 static int 89 vsxxx_enable(void *v) 90 { 91 /* turn on the hardware? */ 92 ((struct vsxxx_softc *)v)->sc_nbyte = 0; 93 return 0; 94 } 95 96 static void 97 vsxxx_disable(void *v) 98 { 99 /* turn off the hardware? */ 100 } 101 102 /*ARGUSED*/ 103 static int 104 vsxxx_ioctl(void *v, u_long cmd, void *data, int flag, struct proc *p) 105 { 106 if (cmd == WSMOUSEIO_GTYPE) { 107 *(u_int *)data = WSMOUSE_TYPE_VSXXX; 108 return 0; 109 } 110 return EPASSTHROUGH; 111 } 112 113 /* EXPORT */ void 114 vsxxx_input(int data) 115 { 116 struct vsxxx_softc *sc = device_lookup_private(&vsms_cd, 0); 117 int x, y; 118 119 if (data & VS_START_FRAME) 120 sc->sc_nbyte = 0; 121 122 sc->sc_report.raw[sc->sc_nbyte++] = data; 123 124 if (sc->sc_nbyte < VS_MOUSE_REPSZ) 125 return; 126 sc->sc_nbyte = 0; 127 128 x = sc->sc_report.ms.xpos; 129 y = sc->sc_report.ms.ypos; 130 if ((sc->sc_report.raw[0] & VS_X_SIGN) == 0) 131 x = -x; 132 if ((sc->sc_report.raw[0] & VS_Y_SIGN) != 0) 133 y = -y; /* Eeeh? */ 134 wsmouse_input(sc->sc_wsmousedev, 135 sc->sc_report.raw[0] & 07, 136 x, y, 0, 0, 137 WSMOUSE_INPUT_DELTA); 138 } 139