ms_hb.c revision 1.8
1 /* $NetBSD: ms_hb.c,v 1.8 2003/07/15 02:59:29 lukem 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/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: ms_hb.c,v 1.8 2003/07/15 02:59:29 lukem Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/device.h> 34 #include <sys/systm.h> 35 36 #include <dev/wscons/wsconsio.h> 37 #include <dev/wscons/wsmousevar.h> 38 39 #include <machine/adrsmap.h> 40 41 #include <newsmips/dev/hbvar.h> 42 43 struct msreg { 44 u_char ms_data; 45 u_char ms_stat; 46 u_char ms_reset; 47 u_char ms_init; 48 }; 49 50 struct ms_hb_softc { 51 struct device sc_dev; 52 volatile struct msreg *sc_reg; 53 struct device *sc_wsmousedev; 54 int sc_ndata; 55 u_char sc_buf[3]; 56 }; 57 58 int ms_hb_match(struct device *, struct cfdata *, void *); 59 void ms_hb_attach(struct device *, struct device *, void *); 60 int ms_hb_intr(void *); 61 62 int ms_hb_enable(void *); 63 int ms_hb_ioctl(void *, u_long, caddr_t, int, struct proc *); 64 void ms_hb_disable(void *); 65 66 CFATTACH_DECL(ms_hb, sizeof(struct ms_hb_softc), 67 ms_hb_match, ms_hb_attach, NULL, NULL); 68 69 struct wsmouse_accessops ms_hb_accessops = { 70 ms_hb_enable, 71 ms_hb_ioctl, 72 ms_hb_disable 73 }; 74 75 int 76 ms_hb_match(parent, cf, aux) 77 struct device *parent; 78 struct cfdata *cf; 79 void *aux; 80 { 81 struct hb_attach_args *ha = aux; 82 83 if (strcmp(ha->ha_name, "ms") == 0) 84 return 1; 85 86 return 0; 87 } 88 89 void 90 ms_hb_attach(parent, self, aux) 91 struct device *parent, *self; 92 void *aux; 93 { 94 struct ms_hb_softc *sc = (void *)self; 95 struct hb_attach_args *ha = aux; 96 volatile struct msreg *reg; 97 struct wsmousedev_attach_args aa; 98 int intr; 99 100 reg = (struct msreg *)ha->ha_addr; 101 intr = ha->ha_level; 102 103 if (intr == -1) 104 intr = 2; 105 106 sc->sc_reg = reg; 107 108 reg->ms_reset = 0x01; 109 reg->ms_init = 0x80; /* 1200 bps */ 110 111 printf(" level %d\n", intr); 112 113 hb_intr_establish(intr, INTEN0_MSINT, IPL_TTY, ms_hb_intr, sc); 114 115 aa.accessops = &ms_hb_accessops; 116 aa.accesscookie = sc; 117 sc->sc_wsmousedev = config_found(self, &aa, wsmousedevprint); 118 } 119 120 int 121 ms_hb_intr(v) 122 void *v; 123 { 124 struct ms_hb_softc *sc = v; 125 volatile struct msreg *reg = sc->sc_reg; 126 volatile u_char *ien = (void *)INTEN0; 127 int code, index, byte0, byte1, byte2; 128 int button, dx, dy; 129 int rv = 0; 130 131 *ien &= ~RX_MSINTE; 132 133 while (reg->ms_stat & RX_MSRDY) { 134 rv = 1; 135 code = reg->ms_data; 136 index = sc->sc_ndata; 137 138 if (sc->sc_wsmousedev == NULL) 139 continue; 140 141 if (code & 0x80) { 142 sc->sc_buf[0] = code; 143 sc->sc_ndata = 1; 144 continue; 145 } 146 147 if (index == 1) { 148 sc->sc_buf[1] = code; 149 sc->sc_ndata++; 150 continue; 151 } 152 153 if (index == 2) { 154 sc->sc_buf[2] = code; 155 sc->sc_ndata++; 156 157 byte0 = sc->sc_buf[0]; 158 byte1 = sc->sc_buf[1]; 159 byte2 = sc->sc_buf[2]; 160 161 button = 0; 162 if (byte0 & 0x01) 163 button |= 1; 164 if (byte0 & 0x04) 165 button |= 2; 166 if (byte0 & 0x02) 167 button |= 4; 168 169 if (byte0 & 0x08) 170 dx = byte1 - 0x80; 171 else 172 dx = byte1; 173 if (byte0 & 0x10) 174 dy = byte2 - 0x80; 175 else 176 dy = byte2; 177 178 wsmouse_input(sc->sc_wsmousedev, button, dx, -dy, 0, 179 WSMOUSE_INPUT_DELTA); 180 } 181 } 182 183 *ien |= RX_MSINTE; 184 return rv; 185 } 186 187 int 188 ms_hb_enable(v) 189 void *v; 190 { 191 volatile u_char *ien = (void *)INTEN0; 192 193 *ien |= RX_MSINTE; 194 return 0; 195 } 196 197 void 198 ms_hb_disable(v) 199 void *v; 200 { 201 volatile u_char *ien = (void *)INTEN0; 202 203 *ien &= ~RX_MSINTE; 204 } 205 206 int 207 ms_hb_ioctl(v, cmd, data, flag, p) 208 void *v; 209 u_long cmd; 210 caddr_t data; 211 int flag; 212 struct proc *p; 213 { 214 return EPASSTHROUGH; 215 } 216
Indexes created Mon Oct 20 08:09:54 GMT 2025