ms_hb.c revision 1.5
1 /* $NetBSD: ms_hb.c,v 1.5 2003/05/09 13:36:40 tsutsui Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 Tsubai Masanari. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/device.h> 31 #include <sys/systm.h> 32 33 #include <dev/wscons/wsconsio.h> 34 #include <dev/wscons/wsmousevar.h> 35 36 #include <machine/adrsmap.h> 37 38 #include <newsmips/dev/hbvar.h> 39 40 struct msreg { 41 u_char ms_data; 42 u_char ms_stat; 43 u_char ms_reset; 44 u_char ms_init; 45 }; 46 47 struct ms_hb_softc { 48 struct device sc_dev; 49 volatile struct msreg *sc_reg; 50 struct device *sc_wsmousedev; 51 int sc_ndata; 52 u_char sc_buf[3]; 53 }; 54 55 int ms_hb_match(struct device *, struct cfdata *, void *); 56 void ms_hb_attach(struct device *, struct device *, void *); 57 int ms_hb_intr(void *); 58 59 int ms_hb_enable(void *); 60 int ms_hb_ioctl(void *, u_long, caddr_t, int, struct proc *); 61 void ms_hb_disable(void *); 62 63 CFATTACH_DECL(ms_hb, sizeof(struct ms_hb_softc), 64 ms_hb_match, ms_hb_attach, NULL, NULL); 65 66 struct wsmouse_accessops ms_hb_accessops = { 67 ms_hb_enable, 68 ms_hb_ioctl, 69 ms_hb_disable 70 }; 71 72 int 73 ms_hb_match(parent, cf, aux) 74 struct device *parent; 75 struct cfdata *cf; 76 void *aux; 77 { 78 struct hb_attach_args *ha = aux; 79 80 if (strcmp(ha->ha_name, "ms") == 0) 81 return 1; 82 83 return 0; 84 } 85 86 void 87 ms_hb_attach(parent, self, aux) 88 struct device *parent, *self; 89 void *aux; 90 { 91 struct ms_hb_softc *sc = (void *)self; 92 struct hb_attach_args *ha = aux; 93 volatile struct msreg *reg; 94 struct wsmousedev_attach_args aa; 95 int intr; 96 97 reg = ha->ha_addr; 98 intr = ha->ha_level; 99 100 if (intr == -1) 101 intr = 2; 102 103 sc->sc_reg = reg; 104 105 reg->ms_reset = 0x01; 106 reg->ms_init = 0x80; /* 1200 bps */ 107 108 printf(" level %d\n", intr); 109 110 hb_intr_establish(intr, IPL_TTY, ms_hb_intr, sc); 111 112 aa.accessops = &ms_hb_accessops; 113 aa.accesscookie = sc; 114 sc->sc_wsmousedev = config_found(self, &aa, wsmousedevprint); 115 } 116 117 int 118 ms_hb_intr(v) 119 void *v; 120 { 121 struct ms_hb_softc *sc = v; 122 volatile struct msreg *reg = sc->sc_reg; 123 volatile u_char *ien = (void *)INTEN0; 124 int code, index, byte0, byte1, byte2; 125 int button, dx, dy; 126 int rv = 0; 127 128 *ien &= ~RX_MSINTE; 129 130 while (reg->ms_stat & RX_MSRDY) { 131 rv = 1; 132 code = reg->ms_data; 133 index = sc->sc_ndata; 134 135 if (sc->sc_wsmousedev == NULL) 136 continue; 137 138 if (code & 0x80) { 139 sc->sc_buf[0] = code; 140 sc->sc_ndata = 1; 141 continue; 142 } 143 144 if (index == 1) { 145 sc->sc_buf[1] = code; 146 sc->sc_ndata++; 147 continue; 148 } 149 150 if (index == 2) { 151 sc->sc_buf[2] = code; 152 sc->sc_ndata++; 153 154 byte0 = sc->sc_buf[0]; 155 byte1 = sc->sc_buf[1]; 156 byte2 = sc->sc_buf[2]; 157 158 button = 0; 159 if (byte0 & 0x01) 160 button |= 1; 161 if (byte0 & 0x04) 162 button |= 2; 163 if (byte0 & 0x02) 164 button |= 4; 165 166 if (byte0 & 0x08) 167 dx = byte1 - 0x80; 168 else 169 dx = byte1; 170 if (byte0 & 0x10) 171 dy = byte2 - 0x80; 172 else 173 dy = byte2; 174 175 wsmouse_input(sc->sc_wsmousedev, button, dx, -dy, 0, 176 WSMOUSE_INPUT_DELTA); 177 } 178 } 179 180 *ien |= RX_MSINTE; 181 return rv; 182 } 183 184 int 185 ms_hb_enable(v) 186 void *v; 187 { 188 volatile u_char *ien = (void *)INTEN0; 189 190 *ien |= RX_MSINTE; 191 return 0; 192 } 193 194 void 195 ms_hb_disable(v) 196 void *v; 197 { 198 volatile u_char *ien = (void *)INTEN0; 199 200 *ien &= ~RX_MSINTE; 201 } 202 203 int 204 ms_hb_ioctl(v, cmd, data, flag, p) 205 void *v; 206 u_long cmd; 207 caddr_t data; 208 int flag; 209 struct proc *p; 210 { 211 return EPASSTHROUGH; 212 } 213
Indexes created Wed Oct 22 13:09:56 GMT 2025