1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * 3-Byte Mouse Protocol 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <sys/param.h> 34*0Sstevel@tonic-gate #include <sys/stream.h> 35*0Sstevel@tonic-gate #include <sys/vuid_event.h> 36*0Sstevel@tonic-gate #include <sys/vuidmice.h> 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #define VUID_BUT(b) BUT((b*2)+1) 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * VUID_BUT(0) BUT(1) LEFT BUTTON 42*0Sstevel@tonic-gate * VUID_BUT(1) BUT(3) RIGHT BUTTON 43*0Sstevel@tonic-gate */ 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate #define MOUSE_BUTTON_L (uchar_t)(0x20) /* Left button pressed */ 46*0Sstevel@tonic-gate #define MOUSE_BUTTON_R (uchar_t)(0x10) /* Right button pressed */ 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate #define MOUSE_START_CODE (uchar_t)(0x40) /* Start code in char */ 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate #define MOUSE_START 0 /* Beginning of packet */ 51*0Sstevel@tonic-gate #define MOUSE_BUTTON 1 /* Got button status */ 52*0Sstevel@tonic-gate #define MOUSE_DELTA_X 2 /* got delta X */ 53*0Sstevel@tonic-gate 54*0Sstevel@tonic-gate extern void VUID_PUTNEXT(queue_t *const, uchar_t, uchar_t, uchar_t, int); 55*0Sstevel@tonic-gate 56*0Sstevel@tonic-gate int 57*0Sstevel@tonic-gate VUID_OPEN(queue_t *const qp) 58*0Sstevel@tonic-gate { 59*0Sstevel@tonic-gate STATEP->nbuttons = 2; 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate return (0); 62*0Sstevel@tonic-gate } 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate static void 65*0Sstevel@tonic-gate vuidm3p_sendButtonEvent(queue_t *const qp) 66*0Sstevel@tonic-gate { 67*0Sstevel@tonic-gate int b; 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate if ((STATEP->buttons == 0x30) && (!STATEP->oldbuttons)) { 70*0Sstevel@tonic-gate /* 71*0Sstevel@tonic-gate * both buttons going down simultaneously means button 72*0Sstevel@tonic-gate * two going down 73*0Sstevel@tonic-gate */ 74*0Sstevel@tonic-gate vuidm3p_putnext(qp, (uchar_t)MS_MIDDLE, FE_PAIR_NONE, 0, 1); 75*0Sstevel@tonic-gate return; 76*0Sstevel@tonic-gate } else if ((!STATEP->buttons) && (STATEP->oldbuttons == 0x30)) { 77*0Sstevel@tonic-gate /* 78*0Sstevel@tonic-gate * both buttons going up simultaneously means button 79*0Sstevel@tonic-gate * two going up 80*0Sstevel@tonic-gate */ 81*0Sstevel@tonic-gate vuidm3p_putnext(qp, (uchar_t)MS_MIDDLE, FE_PAIR_NONE, 0, 0); 82*0Sstevel@tonic-gate return; 83*0Sstevel@tonic-gate } 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate /* 86*0Sstevel@tonic-gate * for each button, see if it has changed 87*0Sstevel@tonic-gate */ 88*0Sstevel@tonic-gate for (b = 0; b < 2; b++) { 89*0Sstevel@tonic-gate uchar_t mask = 0x20 >> b; 90*0Sstevel@tonic-gate 91*0Sstevel@tonic-gate if ((STATEP->buttons & mask) != (STATEP->oldbuttons & mask)) 92*0Sstevel@tonic-gate VUID_PUTNEXT(qp, VUID_BUT(b), FE_PAIR_NONE, 0, 93*0Sstevel@tonic-gate (STATEP->buttons & mask ? 1 : 0)); 94*0Sstevel@tonic-gate } 95*0Sstevel@tonic-gate } 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate void 98*0Sstevel@tonic-gate vuidm3p(queue_t *const qp, mblk_t *mp) 99*0Sstevel@tonic-gate { 100*0Sstevel@tonic-gate int r, code; 101*0Sstevel@tonic-gate uchar_t *bufp; 102*0Sstevel@tonic-gate 103*0Sstevel@tonic-gate bufp = mp->b_rptr; 104*0Sstevel@tonic-gate r = mp->b_wptr - mp->b_rptr; 105*0Sstevel@tonic-gate 106*0Sstevel@tonic-gate for (r--; r >= 0; r--) { 107*0Sstevel@tonic-gate code = *bufp++; 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate /* strip the high-order bit (mouse sends 7-bit data) */ 110*0Sstevel@tonic-gate code &= 0x7f; 111*0Sstevel@tonic-gate 112*0Sstevel@tonic-gate switch (STATEP->state) { 113*0Sstevel@tonic-gate 114*0Sstevel@tonic-gate /* 115*0Sstevel@tonic-gate * Start state. We stay here if the start code is not 116*0Sstevel@tonic-gate * received thus forcing us back into sync. When we 117*0Sstevel@tonic-gate * get a start code the button mask comes with it 118*0Sstevel@tonic-gate * forcing us to the next state. 119*0Sstevel@tonic-gate */ 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate default: 122*0Sstevel@tonic-gate case MOUSE_START: 123*0Sstevel@tonic-gate start_code: 124*0Sstevel@tonic-gate STATEP->deltax = STATEP->deltay = 0; 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate /* look for sync */ 127*0Sstevel@tonic-gate if ((code & MOUSE_START_CODE) == 0) 128*0Sstevel@tonic-gate break; 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate STATEP->buttons = code & 0x30; 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate if (STATEP->buttons != STATEP->oldbuttons) { 133*0Sstevel@tonic-gate vuidm3p_sendButtonEvent(qp); 134*0Sstevel@tonic-gate /* 135*0Sstevel@tonic-gate * remember state 136*0Sstevel@tonic-gate */ 137*0Sstevel@tonic-gate STATEP->oldbuttons = STATEP->buttons; 138*0Sstevel@tonic-gate } 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate /* 141*0Sstevel@tonic-gate * bits 0 & 1 are bits 6 & 7 of X value 142*0Sstevel@tonic-gate * (Sign extend them with the cast.) 143*0Sstevel@tonic-gate */ 144*0Sstevel@tonic-gate STATEP->deltax = (signed char)((code & 0x03) << 6); 145*0Sstevel@tonic-gate 146*0Sstevel@tonic-gate /* 147*0Sstevel@tonic-gate * bits 2 & 3 are bits 6 & 7 of Y value 148*0Sstevel@tonic-gate * (Sign extend them with the cast.) 149*0Sstevel@tonic-gate */ 150*0Sstevel@tonic-gate STATEP->deltay = (signed char)((code & 0x0c) << 4); 151*0Sstevel@tonic-gate 152*0Sstevel@tonic-gate /* 153*0Sstevel@tonic-gate * go to the next state 154*0Sstevel@tonic-gate */ 155*0Sstevel@tonic-gate STATEP->state = MOUSE_BUTTON; 156*0Sstevel@tonic-gate break; 157*0Sstevel@tonic-gate 158*0Sstevel@tonic-gate /* 159*0Sstevel@tonic-gate * We receive the remaining 6 bits of delta x, forcing 160*0Sstevel@tonic-gate * us to the next state. We just piece the value of 161*0Sstevel@tonic-gate * delta x together. 162*0Sstevel@tonic-gate */ 163*0Sstevel@tonic-gate case MOUSE_BUTTON: 164*0Sstevel@tonic-gate if (code & MOUSE_START_CODE) { 165*0Sstevel@tonic-gate STATEP->state = MOUSE_START; 166*0Sstevel@tonic-gate goto start_code; /* restart */ 167*0Sstevel@tonic-gate } 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate STATEP->deltax |= code & 0x3f; 170*0Sstevel@tonic-gate STATEP->state = MOUSE_DELTA_X; 171*0Sstevel@tonic-gate break; 172*0Sstevel@tonic-gate 173*0Sstevel@tonic-gate /* 174*0Sstevel@tonic-gate * The last part of delta Y, and the packet 175*0Sstevel@tonic-gate * *may be* complete 176*0Sstevel@tonic-gate */ 177*0Sstevel@tonic-gate case MOUSE_DELTA_X: 178*0Sstevel@tonic-gate if (code & MOUSE_START_CODE) { 179*0Sstevel@tonic-gate STATEP->state = MOUSE_START; 180*0Sstevel@tonic-gate goto start_code; /* restart */ 181*0Sstevel@tonic-gate } 182*0Sstevel@tonic-gate 183*0Sstevel@tonic-gate STATEP->deltay |= code & 0x3f; 184*0Sstevel@tonic-gate 185*0Sstevel@tonic-gate /* 186*0Sstevel@tonic-gate * generate motion Event 187*0Sstevel@tonic-gate */ 188*0Sstevel@tonic-gate if (STATEP->deltax) 189*0Sstevel@tonic-gate VUID_PUTNEXT(qp, (uchar_t)LOC_X_DELTA, 190*0Sstevel@tonic-gate FE_PAIR_ABSOLUTE, (uchar_t)LOC_X_ABSOLUTE, 191*0Sstevel@tonic-gate STATEP->deltax); 192*0Sstevel@tonic-gate 193*0Sstevel@tonic-gate if (STATEP->deltay) 194*0Sstevel@tonic-gate VUID_PUTNEXT(qp, (uchar_t)LOC_Y_DELTA, 195*0Sstevel@tonic-gate FE_PAIR_ABSOLUTE, (uchar_t)LOC_Y_ABSOLUTE, 196*0Sstevel@tonic-gate -STATEP->deltay); 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate STATEP->deltax = STATEP->deltay = 0; 199*0Sstevel@tonic-gate break; 200*0Sstevel@tonic-gate } 201*0Sstevel@tonic-gate } 202*0Sstevel@tonic-gate 203*0Sstevel@tonic-gate freemsg(mp); 204*0Sstevel@tonic-gate } 205