1 /* $NetBSD: ms_hb.c,v 1.4 2002/10/02 04:27:52 thorpej 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/autoconf.h> 37 #include <machine/adrsmap.h> 38 39 struct msreg { 40 u_char ms_data; 41 u_char ms_stat; 42 u_char ms_reset; 43 u_char ms_init; 44 }; 45 46 struct ms_hb_softc { 47 struct device sc_dev; 48 volatile struct msreg *sc_reg; 49 struct device *sc_wsmousedev; 50 int sc_ndata; 51 u_char sc_buf[3]; 52 }; 53 54 int ms_hb_match(struct device *, struct cfdata *, void *); 55 void ms_hb_attach(struct device *, struct device *, void *); 56 int ms_hb_intr(void *); 57 58 int ms_hb_enable(void *); 59 int ms_hb_ioctl(void *, u_long, caddr_t, int, struct proc *); 60 void ms_hb_disable(void *); 61 62 CFATTACH_DECL(ms_hb, sizeof(struct ms_hb_softc), 63 ms_hb_match, ms_hb_attach, NULL, NULL); 64 65 struct wsmouse_accessops ms_hb_accessops = { 66 ms_hb_enable, 67 ms_hb_ioctl, 68 ms_hb_disable 69 }; 70 71 int 72 ms_hb_match(parent, cf, aux) 73 struct device *parent; 74 struct cfdata *cf; 75 void *aux; 76 { 77 struct confargs *ca = aux; 78 79 if (strcmp(ca->ca_name, "ms") == 0) 80 return 1; 81 82 return 0; 83 } 84 85 void 86 ms_hb_attach(parent, self, aux) 87 struct device *parent, *self; 88 void *aux; 89 { 90 struct ms_hb_softc *sc = (void *)self; 91 volatile struct msreg *reg = (void *)self->dv_cfdata->cf_addr; 92 int intr = self->dv_cfdata->cf_level; 93 struct wsmousedev_attach_args aa; 94 95 if (intr == -1) 96 intr = 2; 97 98 sc->sc_reg = reg; 99 reg->ms_reset = 0x01; 100 reg->ms_init = 0x80; /* 1200 bps */ 101 102 printf(" level %d\n", intr); 103 104 hb_intr_establish(intr, IPL_TTY, ms_hb_intr, sc); 105 106 aa.accessops = &ms_hb_accessops; 107 aa.accesscookie = sc; 108 sc->sc_wsmousedev = config_found(self, &aa, wsmousedevprint); 109 } 110 111 int 112 ms_hb_intr(v) 113 void *v; 114 { 115 struct ms_hb_softc *sc = v; 116 volatile struct msreg *reg = sc->sc_reg; 117 volatile u_char *ien = (void *)INTEN0; 118 int code, index, byte0, byte1, byte2; 119 int button, dx, dy; 120 int rv = 0; 121 122 *ien &= ~RX_MSINTE; 123 124 while (reg->ms_stat & RX_MSRDY) { 125 rv = 1; 126 code = reg->ms_data; 127 index = sc->sc_ndata; 128 129 if (sc->sc_wsmousedev == NULL) 130 continue; 131 132 if (code & 0x80) { 133 sc->sc_buf[0] = code; 134 sc->sc_ndata = 1; 135 continue; 136 } 137 138 if (index == 1) { 139 sc->sc_buf[1] = code; 140 sc->sc_ndata++; 141 continue; 142 } 143 144 if (index == 2) { 145 sc->sc_buf[2] = code; 146 sc->sc_ndata++; 147 148 byte0 = sc->sc_buf[0]; 149 byte1 = sc->sc_buf[1]; 150 byte2 = sc->sc_buf[2]; 151 152 button = 0; 153 if (byte0 & 0x01) 154 button |= 1; 155 if (byte0 & 0x04) 156 button |= 2; 157 if (byte0 & 0x02) 158 button |= 4; 159 160 if (byte0 & 0x08) 161 dx = byte1 - 0x80; 162 else 163 dx = byte1; 164 if (byte0 & 0x10) 165 dy = byte2 - 0x80; 166 else 167 dy = byte2; 168 169 wsmouse_input(sc->sc_wsmousedev, button, dx, -dy, 0, 170 WSMOUSE_INPUT_DELTA); 171 } 172 } 173 174 *ien |= RX_MSINTE; 175 return rv; 176 } 177 178 int 179 ms_hb_enable(v) 180 void *v; 181 { 182 volatile u_char *ien = (void *)INTEN0; 183 184 *ien |= RX_MSINTE; 185 return 0; 186 } 187 188 void 189 ms_hb_disable(v) 190 void *v; 191 { 192 volatile u_char *ien = (void *)INTEN0; 193 194 *ien &= ~RX_MSINTE; 195 } 196 197 int 198 ms_hb_ioctl(v, cmd, data, flag, p) 199 void *v; 200 u_long cmd; 201 caddr_t data; 202 int flag; 203 struct proc *p; 204 { 205 return EPASSTHROUGH; 206 } 207