1 /* $NetBSD: ms_hb.c,v 1.16 2021/08/07 16:19:01 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/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: ms_hb.c,v 1.16 2021/08/07 16:19:01 thorpej 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 volatile uint8_t ms_data; 45 volatile uint8_t ms_stat; 46 volatile uint8_t ms_reset; 47 volatile uint8_t ms_init; 48 }; 49 50 struct ms_hb_softc { 51 device_t sc_dev; 52 struct msreg *sc_reg; 53 device_t sc_wsmousedev; 54 int sc_ndata; 55 uint8_t sc_buf[3]; 56 }; 57 58 int ms_hb_match(device_t, cfdata_t, void *); 59 void ms_hb_attach(device_t, device_t, 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_NEW(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(device_t parent, cfdata_t 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(device_t parent, device_t self, void *aux) 88 { 89 struct ms_hb_softc *sc = device_private(self); 90 struct hb_attach_args *ha = aux; 91 struct msreg *reg; 92 struct wsmousedev_attach_args aa; 93 int intr; 94 95 sc->sc_dev = self; 96 97 reg = (struct msreg *)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 aprint_normal(" level %d\n", intr); 109 110 hb_intr_establish(intr, INTEN0_MSINT, 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, CFARGS_NONE); 115 } 116 117 int 118 ms_hb_intr(void *v) 119 { 120 struct ms_hb_softc *sc = v; 121 struct msreg *reg = sc->sc_reg; 122 volatile uint8_t *ien = (void *)INTEN0; 123 int code, index, byte0, byte1, byte2; 124 int button, dx, dy; 125 int rv = 0; 126 127 *ien &= ~RX_MSINTE; 128 129 while (reg->ms_stat & RX_MSRDY) { 130 rv = 1; 131 code = reg->ms_data; 132 index = sc->sc_ndata; 133 134 if (sc->sc_wsmousedev == NULL) 135 continue; 136 137 if (code & 0x80) { 138 sc->sc_buf[0] = code; 139 sc->sc_ndata = 1; 140 continue; 141 } 142 143 if (index == 1) { 144 sc->sc_buf[1] = code; 145 sc->sc_ndata++; 146 continue; 147 } 148 149 if (index == 2) { 150 sc->sc_buf[2] = code; 151 sc->sc_ndata++; 152 153 byte0 = sc->sc_buf[0]; 154 byte1 = sc->sc_buf[1]; 155 byte2 = sc->sc_buf[2]; 156 157 button = 0; 158 if (byte0 & 0x01) 159 button |= 1; 160 if (byte0 & 0x04) 161 button |= 2; 162 if (byte0 & 0x02) 163 button |= 4; 164 165 if (byte0 & 0x08) 166 dx = byte1 - 0x80; 167 else 168 dx = byte1; 169 if (byte0 & 0x10) 170 dy = byte2 - 0x80; 171 else 172 dy = byte2; 173 174 wsmouse_input(sc->sc_wsmousedev, 175 button, 176 dx, -dy, 0, 0, 177 WSMOUSE_INPUT_DELTA); 178 } 179 } 180 181 *ien |= RX_MSINTE; 182 return rv; 183 } 184 185 int 186 ms_hb_enable(void *v) 187 { 188 volatile uint8_t *ien = (void *)INTEN0; 189 190 *ien |= RX_MSINTE; 191 return 0; 192 } 193 194 void 195 ms_hb_disable(void *v) 196 { 197 volatile uint8_t *ien = (void *)INTEN0; 198 199 *ien &= ~RX_MSINTE; 200 } 201 202 int 203 ms_hb_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l) 204 { 205 206 return EPASSTHROUGH; 207 } 208
Indexes created Sat Sep 20 22:09:52 GMT 2025