1 /* $NetBSD: ms_hb.c,v 1.12 2007/03/04 06:00:26 christos 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 1.12 2007/03/04 06:00:26 christos 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, void *, int, struct lwp *); 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(struct device *parent, struct cfdata *cf, 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(struct device *parent, struct device *self, void *aux) 88 { 89 struct ms_hb_softc *sc = (void *)self; 90 struct hb_attach_args *ha = aux; 91 volatile struct msreg *reg; 92 struct wsmousedev_attach_args aa; 93 int intr; 94 95 reg = (struct msreg *)ha->ha_addr; 96 intr = ha->ha_level; 97 98 if (intr == -1) 99 intr = 2; 100 101 sc->sc_reg = reg; 102 103 reg->ms_reset = 0x01; 104 reg->ms_init = 0x80; /* 1200 bps */ 105 106 printf(" level %d\n", intr); 107 108 hb_intr_establish(intr, INTEN0_MSINT, IPL_TTY, ms_hb_intr, sc); 109 110 aa.accessops = &ms_hb_accessops; 111 aa.accesscookie = sc; 112 sc->sc_wsmousedev = config_found(self, &aa, wsmousedevprint); 113 } 114 115 int 116 ms_hb_intr(void *v) 117 { 118 struct ms_hb_softc *sc = v; 119 volatile struct msreg *reg = sc->sc_reg; 120 volatile u_char *ien = (void *)INTEN0; 121 int code, index, byte0, byte1, byte2; 122 int button, dx, dy; 123 int rv = 0; 124 125 *ien &= ~RX_MSINTE; 126 127 while (reg->ms_stat & RX_MSRDY) { 128 rv = 1; 129 code = reg->ms_data; 130 index = sc->sc_ndata; 131 132 if (sc->sc_wsmousedev == NULL) 133 continue; 134 135 if (code & 0x80) { 136 sc->sc_buf[0] = code; 137 sc->sc_ndata = 1; 138 continue; 139 } 140 141 if (index == 1) { 142 sc->sc_buf[1] = code; 143 sc->sc_ndata++; 144 continue; 145 } 146 147 if (index == 2) { 148 sc->sc_buf[2] = code; 149 sc->sc_ndata++; 150 151 byte0 = sc->sc_buf[0]; 152 byte1 = sc->sc_buf[1]; 153 byte2 = sc->sc_buf[2]; 154 155 button = 0; 156 if (byte0 & 0x01) 157 button |= 1; 158 if (byte0 & 0x04) 159 button |= 2; 160 if (byte0 & 0x02) 161 button |= 4; 162 163 if (byte0 & 0x08) 164 dx = byte1 - 0x80; 165 else 166 dx = byte1; 167 if (byte0 & 0x10) 168 dy = byte2 - 0x80; 169 else 170 dy = byte2; 171 172 wsmouse_input(sc->sc_wsmousedev, 173 button, 174 dx, -dy, 0, 0, 175 WSMOUSE_INPUT_DELTA); 176 } 177 } 178 179 *ien |= RX_MSINTE; 180 return rv; 181 } 182 183 int 184 ms_hb_enable(void *v) 185 { 186 volatile u_char *ien = (void *)INTEN0; 187 188 *ien |= RX_MSINTE; 189 return 0; 190 } 191 192 void 193 ms_hb_disable(void *v) 194 { 195 volatile u_char *ien = (void *)INTEN0; 196 197 *ien &= ~RX_MSINTE; 198 } 199 200 int 201 ms_hb_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 202 { 203 204 return EPASSTHROUGH; 205 } 206