mms.c revision 1.38.4.2
1 1.38.4.2 atatat /* $NetBSD: mms.c,v 1.38.4.2 2002/03/17 19:40:43 atatat Exp $ */ 2 1.38.4.2 atatat 3 1.38.4.2 atatat /*- 4 1.38.4.2 atatat * Copyright (c) 1993, 1994 Charles M. Hannum. 5 1.38.4.2 atatat * Copyright (c) 1992, 1993 Erik Forsberg. 6 1.38.4.2 atatat * All rights reserved. 7 1.38.4.2 atatat * 8 1.38.4.2 atatat * Redistribution and use in source and binary forms, with or without 9 1.38.4.2 atatat * modification, are permitted provided that the following conditions 10 1.38.4.2 atatat * are met: 11 1.38.4.2 atatat * 1. Redistributions of source code must retain the above copyright 12 1.38.4.2 atatat * notice, this list of conditions and the following disclaimer. 13 1.38.4.2 atatat * 14 1.38.4.2 atatat * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED 15 1.38.4.2 atatat * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 16 1.38.4.2 atatat * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 17 1.38.4.2 atatat * NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 1.38.4.2 atatat * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 1.38.4.2 atatat * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 1.38.4.2 atatat * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 21 1.38.4.2 atatat * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 22 1.38.4.2 atatat * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 23 1.38.4.2 atatat * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 1.38.4.2 atatat */ 25 1.38.4.2 atatat 26 1.38.4.2 atatat #include <sys/cdefs.h> 27 1.38.4.2 atatat __KERNEL_RCSID(0, "$NetBSD: mms.c,v 1.38.4.2 2002/03/17 19:40:43 atatat Exp $"); 28 1.38.4.2 atatat 29 1.38.4.2 atatat #include <sys/param.h> 30 1.38.4.2 atatat #include <sys/systm.h> 31 1.38.4.2 atatat #include <sys/ioctl.h> 32 1.38.4.2 atatat #include <sys/device.h> 33 1.38.4.2 atatat 34 1.38.4.2 atatat #include <machine/intr.h> 35 1.38.4.2 atatat #include <machine/bus.h> 36 1.38.4.2 atatat 37 1.38.4.2 atatat #include <dev/isa/isavar.h> 38 1.38.4.2 atatat 39 1.38.4.2 atatat #include <dev/wscons/wsconsio.h> 40 1.38.4.2 atatat #include <dev/wscons/wsmousevar.h> 41 1.38.4.2 atatat 42 1.38.4.2 atatat #define MMS_ADDR 0 /* offset for register select */ 43 1.38.4.2 atatat #define MMS_DATA 1 /* offset for InPort data */ 44 1.38.4.2 atatat #define MMS_IDENT 2 /* offset for identification register */ 45 1.38.4.2 atatat #define MMS_NPORTS 4 46 1.38.4.2 atatat 47 1.38.4.2 atatat struct mms_softc { /* driver status information */ 48 1.38.4.2 atatat struct device sc_dev; 49 1.38.4.2 atatat void *sc_ih; 50 1.38.4.2 atatat 51 1.38.4.2 atatat bus_space_tag_t sc_iot; 52 1.38.4.2 atatat bus_space_handle_t sc_ioh; 53 1.38.4.2 atatat 54 1.38.4.2 atatat int sc_enabled; /* device is open */ 55 1.38.4.2 atatat 56 1.38.4.2 atatat struct device *sc_wsmousedev; 57 1.38.4.2 atatat }; 58 1.38.4.2 atatat 59 1.38.4.2 atatat int mmsprobe __P((struct device *, struct cfdata *, void *)); 60 1.38.4.2 atatat void mmsattach __P((struct device *, struct device *, void *)); 61 1.38.4.2 atatat int mmsintr __P((void *)); 62 1.38.4.2 atatat 63 1.38.4.2 atatat struct cfattach mms_ca = { 64 1.38.4.2 atatat sizeof(struct mms_softc), mmsprobe, mmsattach 65 1.38.4.2 atatat }; 66 1.38.4.2 atatat 67 1.38.4.2 atatat int mms_enable __P((void *)); 68 1.38.4.2 atatat int mms_ioctl __P((void *, u_long, caddr_t, int, struct proc *)); 69 1.38.4.2 atatat void mms_disable __P((void *)); 70 1.38.4.2 atatat 71 1.38.4.2 atatat const struct wsmouse_accessops mms_accessops = { 72 1.38.4.2 atatat mms_enable, 73 1.38.4.2 atatat mms_ioctl, 74 1.38.4.2 atatat mms_disable, 75 1.38.4.2 atatat }; 76 1.38.4.2 atatat 77 1.38.4.2 atatat int 78 1.38.4.2 atatat mmsprobe(parent, match, aux) 79 1.38.4.2 atatat struct device *parent; 80 1.38.4.2 atatat struct cfdata *match; 81 1.38.4.2 atatat void *aux; 82 1.38.4.2 atatat { 83 1.38.4.2 atatat struct isa_attach_args *ia = aux; 84 1.38.4.2 atatat bus_space_tag_t iot = ia->ia_iot; 85 1.38.4.2 atatat bus_space_handle_t ioh; 86 1.38.4.2 atatat int rv; 87 1.38.4.2 atatat 88 1.38.4.2 atatat if (ia->ia_nio < 1) 89 1.38.4.2 atatat return (0); 90 1.38.4.2 atatat if (ia->ia_nirq < 1) 91 1.38.4.2 atatat return (0); 92 1.38.4.2 atatat 93 1.38.4.2 atatat if (ISA_DIRECT_CONFIG(ia)) 94 1.38.4.2 atatat return (0); 95 1.38.4.2 atatat 96 1.38.4.2 atatat /* Disallow wildcarded i/o address. */ 97 1.38.4.2 atatat if (ia->ia_io[0].ir_addr == ISACF_PORT_DEFAULT) 98 1.38.4.2 atatat return 0; 99 1.38.4.2 atatat 100 1.38.4.2 atatat if (ia->ia_irq[0].ir_irq == ISACF_IRQ_DEFAULT) 101 1.38.4.2 atatat return 0; 102 1.38.4.2 atatat 103 1.38.4.2 atatat /* Map the i/o space. */ 104 1.38.4.2 atatat if (bus_space_map(iot, ia->ia_io[0].ir_addr, MMS_NPORTS, 0, &ioh)) 105 1.38.4.2 atatat return 0; 106 1.38.4.2 atatat 107 1.38.4.2 atatat rv = 0; 108 1.38.4.2 atatat 109 1.38.4.2 atatat /* Read identification register to see if present */ 110 1.38.4.2 atatat if (bus_space_read_1(iot, ioh, MMS_IDENT) != 0xde) 111 1.38.4.2 atatat goto out; 112 1.38.4.2 atatat 113 1.38.4.2 atatat /* Seems it was there; reset. */ 114 1.38.4.2 atatat bus_space_write_1(iot, ioh, MMS_ADDR, 0x87); 115 1.38.4.2 atatat 116 1.38.4.2 atatat rv = 1; 117 1.38.4.2 atatat 118 1.38.4.2 atatat ia->ia_nio = 1; 119 1.38.4.2 atatat ia->ia_io[0].ir_size = MMS_NPORTS; 120 1.38.4.2 atatat 121 1.38.4.2 atatat ia->ia_nirq = 1; 122 1.38.4.2 atatat 123 1.38.4.2 atatat ia->ia_niomem = 0; 124 1.38.4.2 atatat ia->ia_ndrq = 0; 125 1.38.4.2 atatat 126 1.38.4.2 atatat out: 127 1.38.4.2 atatat bus_space_unmap(iot, ioh, MMS_NPORTS); 128 1.38.4.2 atatat return rv; 129 1.38.4.2 atatat } 130 1.38.4.2 atatat 131 1.38.4.2 atatat void 132 1.38.4.2 atatat mmsattach(parent, self, aux) 133 1.38.4.2 atatat struct device *parent, *self; 134 1.38.4.2 atatat void *aux; 135 1.38.4.2 atatat { 136 1.38.4.2 atatat struct mms_softc *sc = (void *)self; 137 1.38.4.2 atatat struct isa_attach_args *ia = aux; 138 1.38.4.2 atatat bus_space_tag_t iot = ia->ia_iot; 139 1.38.4.2 atatat bus_space_handle_t ioh; 140 1.38.4.2 atatat struct wsmousedev_attach_args a; 141 1.38.4.2 atatat 142 1.38.4.2 atatat printf("\n"); 143 1.38.4.2 atatat 144 1.38.4.2 atatat if (bus_space_map(iot, ia->ia_io[0].ir_addr, MMS_NPORTS, 0, &ioh)) { 145 1.38.4.2 atatat printf("%s: can't map i/o space\n", sc->sc_dev.dv_xname); 146 1.38.4.2 atatat return; 147 1.38.4.2 atatat } 148 1.38.4.2 atatat 149 1.38.4.2 atatat /* Other initialization was done by mmsprobe. */ 150 1.38.4.2 atatat sc->sc_iot = iot; 151 1.38.4.2 atatat sc->sc_ioh = ioh; 152 1.38.4.2 atatat sc->sc_enabled = 0; 153 1.38.4.2 atatat 154 1.38.4.2 atatat sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 155 1.38.4.2 atatat IST_PULSE, IPL_TTY, mmsintr, sc); 156 1.38.4.2 atatat 157 1.38.4.2 atatat a.accessops = &mms_accessops; 158 1.38.4.2 atatat a.accesscookie = sc; 159 1.38.4.2 atatat 160 1.38.4.2 atatat /* 161 1.38.4.2 atatat * Attach the wsmouse, saving a handle to it. 162 1.38.4.2 atatat * Note that we don't need to check this pointer against NULL 163 1.38.4.2 atatat * here or in psmintr, because if this fails lms_enable() will 164 1.38.4.2 atatat * never be called, so lmsintr() will never be called. 165 1.38.4.2 atatat */ 166 1.38.4.2 atatat sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint); 167 1.38.4.2 atatat } 168 1.38.4.2 atatat 169 1.38.4.2 atatat int 170 1.38.4.2 atatat mms_enable(v) 171 1.38.4.2 atatat void *v; 172 1.38.4.2 atatat { 173 1.38.4.2 atatat struct mms_softc *sc = v; 174 1.38.4.2 atatat 175 1.38.4.2 atatat if (sc->sc_enabled) 176 1.38.4.2 atatat return EBUSY; 177 1.38.4.2 atatat 178 1.38.4.2 atatat sc->sc_enabled = 1; 179 1.38.4.2 atatat 180 1.38.4.2 atatat /* Enable interrupts. */ 181 1.38.4.2 atatat bus_space_write_1(sc->sc_iot, sc->sc_ioh, MMS_ADDR, 0x07); 182 1.38.4.2 atatat bus_space_write_1(sc->sc_iot, sc->sc_ioh, MMS_DATA, 0x09); 183 1.38.4.2 atatat 184 1.38.4.2 atatat return 0; 185 1.38.4.2 atatat } 186 1.38.4.2 atatat 187 1.38.4.2 atatat void 188 1.38.4.2 atatat mms_disable(v) 189 1.38.4.2 atatat void *v; 190 1.38.4.2 atatat { 191 1.38.4.2 atatat struct mms_softc *sc = v; 192 1.38.4.2 atatat 193 1.38.4.2 atatat /* Disable interrupts. */ 194 1.38.4.2 atatat bus_space_write_1(sc->sc_iot, sc->sc_ioh, MMS_ADDR, 0x87); 195 1.38.4.2 atatat 196 1.38.4.2 atatat sc->sc_enabled = 0; 197 1.38.4.2 atatat } 198 1.38.4.2 atatat 199 1.38.4.2 atatat int 200 1.38.4.2 atatat mms_ioctl(v, cmd, data, flag, p) 201 1.38.4.2 atatat void *v; 202 1.38.4.2 atatat u_long cmd; 203 1.38.4.2 atatat caddr_t data; 204 1.38.4.2 atatat int flag; 205 1.38.4.2 atatat struct proc *p; 206 1.38.4.2 atatat { 207 1.38.4.2 atatat #if 0 208 1.38.4.2 atatat struct mms_softc *sc = v; 209 1.38.4.2 atatat #endif 210 1.38.4.2 atatat 211 1.38.4.2 atatat switch (cmd) { 212 1.38.4.2 atatat case WSMOUSEIO_GTYPE: 213 1.38.4.2 atatat *(u_int *)data = WSMOUSE_TYPE_MMS; 214 1.38.4.2 atatat return (0); 215 1.38.4.2 atatat } 216 1.38.4.2 atatat return (EPASSTHROUGH); 217 1.38.4.2 atatat } 218 1.38.4.2 atatat 219 1.38.4.2 atatat int 220 1.38.4.2 atatat mmsintr(arg) 221 1.38.4.2 atatat void *arg; 222 1.38.4.2 atatat { 223 1.38.4.2 atatat struct mms_softc *sc = arg; 224 1.38.4.2 atatat bus_space_tag_t iot = sc->sc_iot; 225 1.38.4.2 atatat bus_space_handle_t ioh = sc->sc_ioh; 226 1.38.4.2 atatat u_char status; 227 1.38.4.2 atatat signed char dx, dy; 228 1.38.4.2 atatat u_int buttons; 229 1.38.4.2 atatat int changed; 230 1.38.4.2 atatat 231 1.38.4.2 atatat if (!sc->sc_enabled) 232 1.38.4.2 atatat /* Interrupts are not expected. */ 233 1.38.4.2 atatat return 0; 234 1.38.4.2 atatat 235 1.38.4.2 atatat /* Freeze InPort registers (disabling interrupts). */ 236 1.38.4.2 atatat bus_space_write_1(iot, ioh, MMS_ADDR, 0x07); 237 1.38.4.2 atatat bus_space_write_1(iot, ioh, MMS_DATA, 0x29); 238 1.38.4.2 atatat 239 1.38.4.2 atatat bus_space_write_1(iot, ioh, MMS_ADDR, 0x00); 240 1.38.4.2 atatat status = bus_space_read_1(iot, ioh, MMS_DATA); 241 1.38.4.2 atatat 242 1.38.4.2 atatat if (status & 0x40) { 243 1.38.4.2 atatat bus_space_write_1(iot, ioh, MMS_ADDR, 1); 244 1.38.4.2 atatat dx = bus_space_read_1(iot, ioh, MMS_DATA); 245 1.38.4.2 atatat /* Bounding at -127 avoids a bug in XFree86. */ 246 1.38.4.2 atatat dx = (dx == -128) ? -127 : dx; 247 1.38.4.2 atatat 248 1.38.4.2 atatat bus_space_write_1(iot, ioh, MMS_ADDR, 2); 249 1.38.4.2 atatat dy = bus_space_read_1(iot, ioh, MMS_DATA); 250 1.38.4.2 atatat dy = (dy == -128) ? 127 : -dy; 251 1.38.4.2 atatat } else 252 1.38.4.2 atatat dx = dy = 0; 253 1.38.4.2 atatat 254 1.38.4.2 atatat /* Unfreeze InPort registers (reenabling interrupts). */ 255 1.38.4.2 atatat bus_space_write_1(iot, ioh, MMS_ADDR, 0x07); 256 1.38.4.2 atatat bus_space_write_1(iot, ioh, MMS_DATA, 0x09); 257 1.38.4.2 atatat 258 1.38.4.2 atatat buttons = ((status & 0x04) ? 0x1 : 0) | 259 1.38.4.2 atatat ((status & 0x02) ? 0x2 : 0) | 260 1.38.4.2 atatat ((status & 0x01) ? 0x4 : 0); 261 1.38.4.2 atatat changed = status & 0x38; 262 1.38.4.2 atatat 263 1.38.4.2 atatat if (dx || dy || changed) 264 1.38.4.2 atatat wsmouse_input(sc->sc_wsmousedev, 265 1.38.4.2 atatat buttons, dx, dy, 0, WSMOUSE_INPUT_DELTA); 266 1.38.4.2 atatat 267 1.38.4.2 atatat return -1; 268 1.38.4.2 atatat } 269
Indexes created Thu Nov 06 17:09:51 GMT 2025