1 /* $NetBSD: ms.c,v 1.2 2003/07/15 02:59:26 lukem Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Izumi Tsutsui. All rights reserved. 5 * Copyright (c) 2000 Tsubai Masanari. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __KERNEL_RCSID(0, "$NetBSD: ms.c,v 1.2 2003/07/15 02:59:26 lukem Exp $"); 32 33 #include <sys/param.h> 34 #include <sys/device.h> 35 #include <sys/systm.h> 36 37 #include <dev/wscons/wsconsio.h> 38 #include <dev/wscons/wsmousevar.h> 39 40 #include <machine/cpu.h> 41 #include <machine/bus.h> 42 43 #include <news68k/dev/msvar.h> 44 45 void 46 ms_intr(sc) 47 struct ms_softc *sc; 48 { 49 bus_space_tag_t bt = sc->sc_bt; 50 bus_space_handle_t bh = sc->sc_bh; 51 bus_size_t offset = sc->sc_offset; 52 int code, index, byte0, byte1, byte2; 53 int button, dx, dy; 54 55 if (sc->sc_wsmousedev == NULL) 56 return; 57 58 code = bus_space_read_1(bt, bh, offset); 59 index = sc->sc_ndata; 60 61 if (code & MS_S_MARK) { 62 sc->sc_buf[MS_S_BYTE] = code; 63 sc->sc_ndata = MS_X_BYTE; 64 return; 65 } 66 67 if (index == MS_X_BYTE) { 68 sc->sc_buf[MS_X_BYTE] = code; 69 sc->sc_ndata = MS_Y_BYTE; 70 return; 71 } 72 73 if (index == MS_Y_BYTE) { 74 sc->sc_buf[MS_Y_BYTE] = code; 75 sc->sc_ndata = 0; 76 77 byte0 = sc->sc_buf[MS_S_BYTE]; 78 byte1 = sc->sc_buf[MS_X_BYTE]; 79 byte2 = sc->sc_buf[MS_Y_BYTE]; 80 81 button = 0; 82 if (byte0 & MS_S_SW1) 83 button |= 0x01; 84 if (byte0 & MS_S_SW3) 85 button |= 0x02; 86 if (byte0 & MS_S_SW2) 87 button |= 0x04; 88 89 dx = byte1 & MS_X_DATA; 90 if (byte0 & MS_S_XSIGN) 91 dx = -dx; 92 dy = byte2 & MS_Y_DATA; 93 if (byte0 & MS_S_YSIGN) 94 dy = -dy; 95 96 wsmouse_input(sc->sc_wsmousedev, button, dx, -dy, 0, 97 WSMOUSE_INPUT_DELTA); 98 } 99 } 100