mse_cbus.c revision 144783
1/*- 2 * Copyright (c) 2004 M. Warner Losh 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/mse/mse_cbus.c 144783 2005-04-08 05:22:58Z imp $ 27 */ 28 29/*- 30 * Copyright 1992 by the University of Guelph 31 * 32 * Permission to use, copy and modify this 33 * software and its documentation for any purpose and without 34 * fee is hereby granted, provided that the above copyright 35 * notice appear in all copies and that both that copyright 36 * notice and this permission notice appear in supporting 37 * documentation. 38 * University of Guelph makes no representations about the suitability of 39 * this software for any purpose. It is provided "as is" 40 * without express or implied warranty. 41 */ 42/* 43 * Driver for the Logitech and ATI Inport Bus mice for use with 386bsd and 44 * the X386 port, courtesy of 45 * Rick Macklem, rick@snowhite.cis.uoguelph.ca 46 * Caveats: The driver currently uses spltty(), but doesn't use any 47 * generic tty code. It could use splmse() (that only masks off the 48 * bus mouse interrupt, but that would require hacking in i386/isa/icu.s. 49 * (This may be worth the effort, since the Logitech generates 30/60 50 * interrupts/sec continuously while it is open.) 51 * NB: The ATI has NOT been tested yet! 52 */ 53 54/* 55 * Modification history: 56 * Sep 6, 1994 -- Lars Fredriksen(fredriks@mcs.com) 57 * improved probe based on input from Logitech. 58 * 59 * Oct 19, 1992 -- E. Stark (stark@cs.sunysb.edu) 60 * fixes to make it work with Microsoft InPort busmouse 61 * 62 * Jan, 1993 -- E. Stark (stark@cs.sunysb.edu) 63 * added patches for new "select" interface 64 * 65 * May 4, 1993 -- E. Stark (stark@cs.sunysb.edu) 66 * changed position of some spl()'s in mseread 67 * 68 * October 8, 1993 -- E. Stark (stark@cs.sunysb.edu) 69 * limit maximum negative x/y value to -127 to work around XFree problem 70 * that causes spurious button pushes. 71 */ 72 73#include <sys/param.h> 74#include <sys/systm.h> 75#include <sys/conf.h> 76#include <sys/kernel.h> 77#include <sys/module.h> 78#include <sys/bus.h> 79#include <sys/poll.h> 80#include <sys/selinfo.h> 81#include <sys/uio.h> 82#include <sys/mouse.h> 83 84#include <machine/bus.h> 85#include <machine/clock.h> 86#include <machine/resource.h> 87#include <sys/rman.h> 88 89#include <isa/isavar.h> 90 91#include <dev/mse/msevar.h> 92 93static int mse_cbus_probe(device_t dev); 94static int mse_cbus_attach(device_t dev); 95static int mse_cbus_detach(device_t dev); 96 97static device_method_t mse_methods[] = { 98 DEVMETHOD(device_probe, mse_cbus_probe), 99 DEVMETHOD(device_attach, mse_cbus_attach), 100 DEVMETHOD(device_detach, mse_cbus_detach), 101 { 0, 0 } 102}; 103 104static driver_t mse_driver = { 105 "mse", 106 mse_methods, 107 sizeof(mse_softc_t), 108}; 109 110DRIVER_MODULE(mse, isa, mse_driver, mse_devclass, 0, 0); 111 112static struct isa_pnp_id mse_ids[] = { 113#if 0 114 { 0x001fa3b8, "PC-98 bus mouse" }, /* NEC1F00 */ 115#endif 116 { 0 } 117}; 118 119/* 120 * PC-9801 Bus mouse definitions 121 */ 122 123#define MODE MSE_PORTD 124#define HC MSE_PORTD 125#define INT MSE_PORTD 126 127#define XL 0x00 128#define XH 0x20 129#define YL 0x40 130#define YH 0x60 131 132#define INT_ENABLE 0x8 133#define INT_DISABLE 0x9 134#define HC_NO_CLEAR 0xe 135#define HC_CLEAR 0xf 136 137static bus_addr_t mse_port[] = {0, 2, 4, 6}; 138 139static int mse_probe98m(device_t dev, mse_softc_t *sc); 140static void mse_disable98m(bus_space_tag_t t, bus_space_handle_t h); 141static void mse_get98m(bus_space_tag_t t, bus_space_handle_t h, 142 int *dx, int *dy, int *but); 143static void mse_enable98m(bus_space_tag_t t, bus_space_handle_t h); 144 145static struct mse_types mse_types[] = { 146 { MSE_98BUSMOUSE, 147 mse_probe98m, mse_enable98m, mse_disable98m, mse_get98m, 148 { 2, MOUSE_IF_BUS, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, }, 149 { MOUSE_PROTO_BUS, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE, 150 { MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, }, 151 { 0, }, 152}; 153 154static int 155mse_cbus_probe(device_t dev) 156{ 157 mse_softc_t *sc; 158 int error; 159 int rid; 160 int i; 161 162 /* check PnP IDs */ 163 error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids); 164 if (error == ENXIO) 165 return error; 166 167 sc = device_get_softc(dev); 168 rid = 0; 169 sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid, mse_port, 170 MSE_IOSIZE, RF_ACTIVE); 171 if (sc->sc_port == NULL) 172 return ENXIO; 173 if (isa_load_resourcev(sc->sc_port, mse_port, MSE_IOSIZE)) { 174 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 175 return ENXIO; 176 } 177 sc->sc_iot = rman_get_bustag(sc->sc_port); 178 sc->sc_ioh = rman_get_bushandle(sc->sc_port); 179 180 /* 181 * Check for each mouse type in the table. 182 */ 183 i = 0; 184 while (mse_types[i].m_type) { 185 if ((*mse_types[i].m_probe)(dev, sc)) { 186 sc->sc_mousetype = mse_types[i].m_type; 187 sc->sc_enablemouse = mse_types[i].m_enable; 188 sc->sc_disablemouse = mse_types[i].m_disable; 189 sc->sc_getmouse = mse_types[i].m_get; 190 sc->hw = mse_types[i].m_hw; 191 sc->mode = mse_types[i].m_mode; 192 bus_release_resource(dev, SYS_RES_IOPORT, rid, 193 sc->sc_port); 194 device_set_desc(dev, "Bus/InPort Mouse"); 195 return 0; 196 } 197 i++; 198 } 199 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 200 return ENXIO; 201} 202 203static int 204mse_cbus_attach(device_t dev) 205{ 206 mse_softc_t *sc; 207 int rid; 208 209 sc = device_get_softc(dev); 210 211 rid = 0; 212 sc->sc_port = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid, mse_port, 213 MSE_IOSIZE, RF_ACTIVE); 214 if (sc->sc_port == NULL) 215 return ENXIO; 216 if (isa_load_resourcev(sc->sc_port, mse_port, MSE_IOSIZE)) { 217 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 218 return ENXIO; 219 } 220 sc->sc_iot = rman_get_bustag(sc->sc_port); 221 sc->sc_ioh = rman_get_bushandle(sc->sc_port); 222 223 return (mse_common_attach(dev)); 224} 225 226static int 227mse_cbus_detach(device_t dev) 228{ 229 mse_softc_t *sc; 230 int rid; 231 232 sc = device_get_softc(dev); 233 if (sc->sc_flags & MSESC_OPEN) 234 return EBUSY; 235 236 rid = 0; 237 BUS_TEARDOWN_INTR(device_get_parent(dev), dev, sc->sc_intr, sc->sc_ih); 238 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr); 239 bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port); 240 241 destroy_dev(sc->sc_dev); 242 destroy_dev(sc->sc_ndev); 243 244 return 0; 245} 246 247/* 248 * Routines for the PC98 bus mouse. 249 */ 250 251/* 252 * Test for a PC98 bus mouse and return 1 if it is. 253 * (do not enable interrupts) 254 */ 255static int 256mse_probe98m(device_t dev, mse_softc_t *sc) 257{ 258 /* mode set */ 259 bus_space_write_1(sc->sc_iot, sc->sc_ioh, MODE, 0x93); 260 261 /* initialize */ 262 /* INT disable */ 263 bus_space_write_1(sc->sc_iot, sc->sc_ioh, INT, INT_DISABLE); 264 /* HC = 0 */ 265 bus_space_write_1(sc->sc_iot, sc->sc_ioh, HC, HC_NO_CLEAR); 266 /* HC = 1 */ 267 bus_space_write_1(sc->sc_iot, sc->sc_ioh, HC, HC_CLEAR); 268 269 return (1); 270} 271 272/* 273 * Initialize PC98 bus mouse and enable interrupts. 274 */ 275static void 276mse_enable98m(bus_space_tag_t tag, bus_space_handle_t handle) 277{ 278 bus_space_write_1(tag, handle, INT, INT_ENABLE); /* INT enable */ 279 bus_space_write_1(tag, handle, HC, HC_NO_CLEAR); /* HC = 0 */ 280 bus_space_write_1(tag, handle, HC, HC_CLEAR); /* HC = 1 */ 281} 282 283/* 284 * Disable interrupts for PC98 Bus mouse. 285 */ 286static void 287mse_disable98m(bus_space_tag_t tag, bus_space_handle_t handle) 288{ 289 bus_space_write_1(tag, handle, INT, INT_DISABLE); /* INT disable */ 290 bus_space_write_1(tag, handle, HC, HC_NO_CLEAR); /* HC = 0 */ 291 bus_space_write_1(tag, handle, HC, HC_CLEAR); /* HC = 1 */ 292} 293 294/* 295 * Get current dx, dy and up/down button state. 296 */ 297static void 298mse_get98m(bus_space_tag_t tag, bus_space_handle_t handle, int *dx, int *dy, 299 int *but) 300{ 301 register char x, y; 302 303 bus_space_write_1(tag, handle, INT, INT_DISABLE); /* INT disable */ 304 305 bus_space_write_1(tag, handle, HC, HC_CLEAR); /* HC = 1 */ 306 307 /* X low */ 308 bus_space_write_1(tag, handle, MSE_PORTC, 0x90 | XL); 309 x = bus_space_read_1(tag, handle, MSE_PORTA) & 0x0f; 310 /* X high */ 311 bus_space_write_1(tag, handle, MSE_PORTC, 0x90 | XH); 312 x |= ((bus_space_read_1(tag, handle, MSE_PORTA) & 0x0f) << 4); 313 314 /* Y low */ 315 bus_space_write_1(tag, handle, MSE_PORTC, 0x90 | YL); 316 y = (bus_space_read_1(tag, handle, MSE_PORTA) & 0x0f); 317 /* Y high */ 318 bus_space_write_1(tag, handle, MSE_PORTC, 0x90 | YH); 319 y |= ((bus_space_read_1(tag, handle, MSE_PORTA) & 0x0f) << 4); 320 321 *but = (bus_space_read_1(tag, handle, MSE_PORTA) >> 5) & 7; 322 323 *dx = x; 324 *dy = y; 325 326 bus_space_write_1(tag, handle, HC, HC_NO_CLEAR); /* HC = 0 */ 327 328 bus_space_write_1(tag, handle, INT, INT_ENABLE); /* INT enable */ 329} 330