| 1 | /* |
| 2 | * Copyright (c) 2000 Nick Sayer |
| 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 | * spic -- the Sony Programmable I/O Controller |
| 27 | * |
| 28 | * This device exists on most recent Sony laptops. It is the means by which |
| 29 | * you can watch the Jog Dial and some other functions. |
| 30 | * |
| 31 | * At the moment, this driver merely tries to turn the jog dial into a |
| 32 | * device that moused can park on, with the intent of supplying a Z axis |
| 33 | * and mouse button out of the jog dial. I suspect that this device will |
| 34 | * end up having to support at least 2 different minor devices: One to be |
| 35 | * the jog wheel device for moused to camp out on and the other to perform |
| 36 | * all of the other miscelaneous functions of this device. But for now, |
| 37 | * the jog wheel is all you get. |
| 38 | * |
| 39 | * At the moment, the data sent back by the device is rather primitive. |
| 40 | * It sends a single character per event: |
| 41 | * u = up, d = down -- that's the jog button |
| 42 | * l = left, r = right -- that's the dial. |
| 43 | * "left" and "right" are rather caprecious. They actually represent |
| 44 | * ccw and cw, respectively |
| 45 | * |
| 46 | * What documentation exists is thanks to Andrew Tridge, and his page at |
| 47 | * http://samba.org/picturebook/ Special thanks also to Ian Dowse, who |
| 48 | * also provided sample code upon which this driver was based. |
| 49 | * |
| 50 | * $FreeBSD: src/sys/i386/isa/spic.c,v 1.4.2.1 2002/04/15 00:52:12 will Exp $ |
| 51 | * $DragonFly: src/sys/dev/misc/spic/spic.c,v 1.8 2004/05/19 22:52:44 dillon Exp $ |
| 52 | */ |
| 53 | |
| 54 | #include <sys/param.h> |
| 55 | #include <sys/systm.h> |
| 56 | #include <sys/kernel.h> |
| 57 | #include <sys/bus.h> |
| 58 | #include <machine/bus.h> |
| 59 | #include <sys/rman.h> |
| 60 | #include <machine/resource.h> |
| 61 | #include <bus/isa/isavar.h> |
| 62 | #include <sys/poll.h> |
| 63 | #include <machine/pci_cfgreg.h> |
| 64 | #include <machine/clock.h> |
| 65 | #include <sys/tty.h> |
| 66 | #include <sys/conf.h> |
| 67 | #include <sys/fcntl.h> |
| 68 | #include <sys/dkstat.h> |
| 69 | #include <sys/malloc.h> |
| 70 | #include <sys/sysctl.h> |
| 71 | #include <sys/uio.h> |
| 72 | #include <sys/proc.h> |
| 73 | |
| 74 | #include "spicreg.h" |
| 75 | |
| 76 | static int spic_pollrate; |
| 77 | |
| 78 | SYSCTL_INT(_machdep, OID_AUTO, spic_pollrate, CTLFLAG_RW, &spic_pollrate, 0, "") |
| 79 | ; |
| 80 | |
| 81 | devclass_t spic_devclass; |
| 82 | |
| 83 | static d_open_t spicopen; |
| 84 | static d_close_t spicclose; |
| 85 | static d_read_t spicread; |
| 86 | static d_ioctl_t spicioctl; |
| 87 | static d_poll_t spicpoll; |
| 88 | |
| 89 | static struct cdevsw spic_cdevsw = { |
| 90 | /* name */ "spic", |
| 91 | /* maj */ CDEV_MAJOR, |
| 92 | /* flags */ 0, |
| 93 | /* port */ NULL, |
| 94 | /* clone */ NULL, |
| 95 | |
| 96 | /* open */ spicopen, |
| 97 | /* close */ spicclose, |
| 98 | /* read */ spicread, |
| 99 | /* write */ nowrite, |
| 100 | /* ioctl */ spicioctl, |
| 101 | /* poll */ spicpoll, |
| 102 | /* mmap */ nommap, |
| 103 | /* strategy */ nostrategy, |
| 104 | /* dump */ nodump, |
| 105 | /* psize */ nopsize |
| 106 | }; |
| 107 | |
| 108 | #define SCBUFLEN 128 |
| 109 | |
| 110 | struct spic_softc { |
| 111 | u_short sc_port_addr; |
| 112 | u_char sc_intr; |
| 113 | struct resource *sc_port_res,*sc_intr_res; |
| 114 | int sc_port_rid,sc_intr_rid; |
| 115 | int sc_opened; |
| 116 | int sc_sleeping; |
| 117 | int sc_buttonlast; |
| 118 | struct callout_handle sc_timeout_ch; |
| 119 | device_t sc_dev; |
| 120 | struct selinfo sc_rsel; |
| 121 | u_char sc_buf[SCBUFLEN]; |
| 122 | int sc_count; |
| 123 | int sc_model; |
| 124 | }; |
| 125 | |
| 126 | static void |
| 127 | write_port1(struct spic_softc *sc, u_char val) |
| 128 | { |
| 129 | DELAY(10); |
| 130 | outb(sc->sc_port_addr, val); |
| 131 | } |
| 132 | |
| 133 | static void |
| 134 | write_port2(struct spic_softc *sc, u_char val) |
| 135 | { |
| 136 | DELAY(10); |
| 137 | outb(sc->sc_port_addr + 4, val); |
| 138 | } |
| 139 | |
| 140 | static u_char |
| 141 | read_port1(struct spic_softc *sc) |
| 142 | { |
| 143 | DELAY(10); |
| 144 | return inb(sc->sc_port_addr); |
| 145 | } |
| 146 | |
| 147 | static u_char |
| 148 | read_port2(struct spic_softc *sc) |
| 149 | { |
| 150 | DELAY(10); |
| 151 | return inb(sc->sc_port_addr + 4); |
| 152 | } |
| 153 | |
| 154 | static u_char |
| 155 | read_port_cst(struct spic_softc *sc) |
| 156 | { |
| 157 | DELAY(10); |
| 158 | return inb(SPIC_CST_IOPORT); |
| 159 | } |
| 160 | |
| 161 | static void |
| 162 | busy_wait(struct spic_softc *sc) |
| 163 | { |
| 164 | int i=0; |
| 165 | |
| 166 | while(read_port2(sc) & 2) { |
| 167 | DELAY(10); |
| 168 | if (i++>10000) { |
| 169 | printf("spic busy wait abort\n"); |
| 170 | return; |
| 171 | } |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | static void |
| 176 | busy_wait_cst(struct spic_softc *sc, int mask) |
| 177 | { |
| 178 | int i=0; |
| 179 | |
| 180 | while(read_port_cst(sc) & mask) { |
| 181 | DELAY(10); |
| 182 | if (i++>10000) { |
| 183 | printf("spic busy wait abort\n"); |
| 184 | return; |
| 185 | } |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | static u_char |
| 190 | spic_call1(struct spic_softc *sc, u_char dev) { |
| 191 | busy_wait(sc); |
| 192 | write_port2(sc, dev); |
| 193 | read_port2(sc); |
| 194 | return read_port1(sc); |
| 195 | } |
| 196 | |
| 197 | static u_char |
| 198 | spic_call2(struct spic_softc *sc, u_char dev, u_char fn) |
| 199 | { |
| 200 | busy_wait(sc); |
| 201 | write_port2(sc, dev); |
| 202 | busy_wait(sc); |
| 203 | write_port1(sc, fn); |
| 204 | return read_port1(sc); |
| 205 | } |
| 206 | |
| 207 | static void |
| 208 | spic_ecrset(struct spic_softc *sc, u_int16_t addr, u_int16_t value) |
| 209 | { |
| 210 | busy_wait_cst(sc, 3); |
| 211 | outb(SPIC_CST_IOPORT, 0x81); |
| 212 | busy_wait_cst(sc, 2); |
| 213 | outb(SPIC_DATA_IOPORT, addr); |
| 214 | busy_wait_cst(sc, 2); |
| 215 | outb(SPIC_DATA_IOPORT, value); |
| 216 | busy_wait_cst(sc, 2); |
| 217 | } |
| 218 | |
| 219 | static void |
| 220 | spic_type2_srs(struct spic_softc *sc) |
| 221 | { |
| 222 | spic_ecrset(sc, SPIC_SHIB, (sc->sc_port_addr & 0xFF00) >> 8); |
| 223 | spic_ecrset(sc, SPIC_SLOB, sc->sc_port_addr & 0x00FF); |
| 224 | spic_ecrset(sc, SPIC_SIRQ, 0x00); /* using polling mode (IRQ=0)*/ |
| 225 | DELAY(10); |
| 226 | } |
| 227 | |
| 228 | static int |
| 229 | spic_probe(device_t dev) |
| 230 | { |
| 231 | struct spic_softc *sc; |
| 232 | u_char t, spic_irq; |
| 233 | |
| 234 | sc = device_get_softc(dev); |
| 235 | |
| 236 | /* |
| 237 | * We can only have 1 of these. Attempting to probe for a unit 1 |
| 238 | * will destroy the work we did for unit 0 |
| 239 | */ |
| 240 | if (device_get_unit(dev)) |
| 241 | return ENXIO; |
| 242 | |
| 243 | |
| 244 | bzero(sc, sizeof(struct spic_softc)); |
| 245 | |
| 246 | if (!(sc->sc_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, |
| 247 | &sc->sc_port_rid, 0, ~0, 5, RF_ACTIVE))) { |
| 248 | device_printf(dev,"Couldn't map I/O\n"); |
| 249 | return ENXIO; |
| 250 | } |
| 251 | sc->sc_port_addr = (u_short)rman_get_start(sc->sc_port_res); |
| 252 | |
| 253 | #ifdef notyet |
| 254 | if (!(sc->sc_intr_res = bus_alloc_resource(dev, SYS_RES_IRQ, |
| 255 | &sc->sc_intr_rid, 0, ~0, 1, RF_ACTIVE))) { |
| 256 | device_printf(dev,"Couldn't map IRQ\n"); |
| 257 | bus_release_resource(dev, SYS_RES_IOPORT, |
| 258 | sc->sc_port_rid, sc->sc_port_res); |
| 259 | return ENXIO; |
| 260 | } |
| 261 | sc->sc_intr = (u_short)rman_get_start(sc->sc_intr_res); |
| 262 | |
| 263 | switch (sc->sc_intr) { |
| 264 | case 0: spic_irq = 3; break; |
| 265 | case 5: spic_irq = 0; break; |
| 266 | case 0xa: spic_irq = 1; break; |
| 267 | case 0xb: spic_irq = 2; break; |
| 268 | default: device_printf(dev,"Invalid IRQ\n"); |
| 269 | bus_release_resource(dev, SYS_RES_IOPORT, |
| 270 | sc->sc_port_rid, sc->sc_port_res); |
| 271 | bus_release_resource(dev, SYS_RES_IRQ, |
| 272 | sc->sc_intr_rid, sc->sc_intr_res); |
| 273 | return ENXIO; |
| 274 | } |
| 275 | #else |
| 276 | spic_irq = 3; |
| 277 | #endif |
| 278 | |
| 279 | #if 0 |
| 280 | if (sc->sc_port_addr != 0x10A0) { |
| 281 | bus_release_resource(dev, SYS_RES_IOPORT, |
| 282 | sc->sc_port_rid, sc->sc_port_res); |
| 283 | bus_release_resource(dev, SYS_RES_IRQ, |
| 284 | sc->sc_intr_rid, sc->sc_intr_res); |
| 285 | return ENXIO; |
| 286 | } |
| 287 | #endif |
| 288 | |
| 289 | /* PIIX4 chipset at least? */ |
| 290 | if (pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, 0, 4) == |
| 291 | PIIX4_DEVID) { |
| 292 | sc->sc_model = SPIC_DEVICE_MODEL_TYPE1; |
| 293 | } else { |
| 294 | /* For newer VAIOs (R505, SRX7, ...) */ |
| 295 | sc->sc_model = SPIC_DEVICE_MODEL_TYPE2; |
| 296 | } |
| 297 | |
| 298 | /* |
| 299 | * This is an ugly hack. It is necessary until ACPI works correctly. |
| 300 | * |
| 301 | * The SPIC consists of 2 registers. They are mapped onto I/O by the |
| 302 | * PIIX4's General Device 10 function. There is also an interrupt |
| 303 | * control port at a somewhat magic location, but this first pass is |
| 304 | * polled. |
| 305 | * |
| 306 | * So the first thing we need to do is map the G10 space in. |
| 307 | * |
| 308 | */ |
| 309 | |
| 310 | /* Enable ACPI mode to get Fn key events */ |
| 311 | /* XXX This may slow down your VAIO if ACPI is not supported in the kernel. |
| 312 | outb(0xb2, 0xf0); |
| 313 | */ |
| 314 | |
| 315 | device_printf(dev,"device model type = %d\n", sc->sc_model); |
| 316 | |
| 317 | if(sc->sc_model == SPIC_DEVICE_MODEL_TYPE1) { |
| 318 | pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10A, |
| 319 | sc->sc_port_addr, 2); |
| 320 | t = pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, 1); |
| 321 | t &= 0xf0; |
| 322 | t |= 4; |
| 323 | pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, t, 1); |
| 324 | outw(SPIC_IRQ_PORT, (inw(SPIC_IRQ_PORT) & ~(0x3 << SPIC_IRQ_SHIFT)) | (spic_irq << SPIC_IRQ_SHIFT)); |
| 325 | t = pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, 1); |
| 326 | t &= 0x1f; |
| 327 | t |= 0xc0; |
| 328 | pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, t, 1); |
| 329 | } else { |
| 330 | spic_type2_srs(sc); |
| 331 | } |
| 332 | |
| 333 | /* |
| 334 | * XXX: Should try and see if there's anything actually there. |
| 335 | */ |
| 336 | |
| 337 | device_set_desc(dev, "Sony Programmable I/O Controller"); |
| 338 | |
| 339 | return 0; |
| 340 | } |
| 341 | |
| 342 | static int |
| 343 | spic_attach(device_t dev) |
| 344 | { |
| 345 | struct spic_softc *sc; |
| 346 | |
| 347 | sc = device_get_softc(dev); |
| 348 | |
| 349 | sc->sc_dev = dev; |
| 350 | |
| 351 | spic_pollrate = (hz/50); /* Every 50th of a second */ |
| 352 | |
| 353 | spic_call1(sc, 0x82); |
| 354 | spic_call2(sc, 0x81, 0xff); |
| 355 | spic_call1(sc, 0x92); |
| 356 | |
| 357 | /* There can be only one */ |
| 358 | cdevsw_add(&spic_cdevsw, -1, device_get_unit(dev)); |
| 359 | make_dev(&spic_cdevsw, device_get_unit(deV), 0, 0, 0600, "jogdial"); |
| 360 | |
| 361 | return 0; |
| 362 | } |
| 363 | |
| 364 | static void |
| 365 | spictimeout(void *arg) |
| 366 | { |
| 367 | struct spic_softc *sc = arg; |
| 368 | u_char b, event, param; |
| 369 | int j; |
| 370 | |
| 371 | if (!sc->sc_opened) { |
| 372 | device_printf(sc->sc_dev, "timeout called while closed!\n"); |
| 373 | return; |
| 374 | } |
| 375 | |
| 376 | event = read_port2(sc); |
| 377 | param = read_port1(sc); |
| 378 | |
| 379 | if ((event != 4) && (!(event & 0x1))) |
| 380 | switch(event) { |
| 381 | case 0x10: /* jog wheel event (type1) */ |
| 382 | if (sc->sc_model == SPIC_DEVICE_MODEL_TYPE1) { |
| 383 | b = !!(param & 0x40); |
| 384 | if (b != sc->sc_buttonlast) { |
| 385 | sc->sc_buttonlast = b; |
| 386 | sc->sc_buf[sc->sc_count++] = |
| 387 | b?'d':'u'; |
| 388 | } |
| 389 | j = (param & 0xf) | ((param & 0x10)? ~0xf:0); |
| 390 | if (j<0) |
| 391 | while(j++!=0) { |
| 392 | sc->sc_buf[sc->sc_count++] = |
| 393 | 'l'; |
| 394 | } |
| 395 | else if (j>0) |
| 396 | while(j--!=0) { |
| 397 | sc->sc_buf[sc->sc_count++] = |
| 398 | 'r'; |
| 399 | } |
| 400 | } |
| 401 | break; |
| 402 | case 0x08: /* jog wheel event (type2) */ |
| 403 | case 0x00: |
| 404 | /* SPIC_DEVICE_MODEL_TYPE2 returns jog wheel event=0x00 */ |
| 405 | if (sc->sc_model == SPIC_DEVICE_MODEL_TYPE2) { |
| 406 | b = !!(param & 0x40); |
| 407 | if (b != sc->sc_buttonlast) { |
| 408 | sc->sc_buttonlast = b; |
| 409 | sc->sc_buf[sc->sc_count++] = |
| 410 | b?'d':'u'; |
| 411 | } |
| 412 | j = (param & 0xf) | ((param & 0x10)? ~0xf:0); |
| 413 | if (j<0) |
| 414 | while(j++!=0) { |
| 415 | sc->sc_buf[sc->sc_count++] = |
| 416 | 'l'; |
| 417 | } |
| 418 | else if (j>0) |
| 419 | while(j--!=0) { |
| 420 | sc->sc_buf[sc->sc_count++] = |
| 421 | 'r'; |
| 422 | } |
| 423 | } |
| 424 | break; |
| 425 | case 0x60: /* Capture button */ |
| 426 | printf("Capture button event: %x\n",param); |
| 427 | break; |
| 428 | case 0x30: /* Lid switch */ |
| 429 | printf("Lid switch event: %x\n",param); |
| 430 | break; |
| 431 | default: |
| 432 | printf("Unknown event: event %02x param %02x\n", event, param); |
| 433 | break; |
| 434 | } |
| 435 | else { |
| 436 | /* No event. Wait some more */ |
| 437 | sc->sc_timeout_ch = timeout(spictimeout, sc, spic_pollrate); |
| 438 | return; |
| 439 | } |
| 440 | |
| 441 | if (sc->sc_count) { |
| 442 | if (sc->sc_sleeping) { |
| 443 | sc->sc_sleeping = 0; |
| 444 | wakeup((caddr_t) sc); |
| 445 | } |
| 446 | selwakeup(&sc->sc_rsel); |
| 447 | } |
| 448 | spic_call2(sc, 0x81, 0xff); /* Clear event */ |
| 449 | |
| 450 | sc->sc_timeout_ch = timeout(spictimeout, sc, spic_pollrate); |
| 451 | } |
| 452 | |
| 453 | static int |
| 454 | spicopen(dev_t dev, int flag, int fmt, struct thread *td) |
| 455 | { |
| 456 | struct spic_softc *sc; |
| 457 | |
| 458 | sc = devclass_get_softc(spic_devclass, 0); |
| 459 | |
| 460 | if (sc->sc_opened) |
| 461 | return EBUSY; |
| 462 | |
| 463 | sc->sc_opened++; |
| 464 | sc->sc_count=0; |
| 465 | |
| 466 | /* Start the polling */ |
| 467 | timeout(spictimeout, sc, spic_pollrate); |
| 468 | return 0; |
| 469 | } |
| 470 | |
| 471 | static int |
| 472 | spicclose(dev_t dev, int flag, int fmt, struct thread *td) |
| 473 | { |
| 474 | struct spic_softc *sc; |
| 475 | |
| 476 | sc = devclass_get_softc(spic_devclass, 0); |
| 477 | |
| 478 | /* Stop polling */ |
| 479 | untimeout(spictimeout, sc, sc->sc_timeout_ch); |
| 480 | sc->sc_opened = 0; |
| 481 | return 0; |
| 482 | } |
| 483 | |
| 484 | static int |
| 485 | spicread(dev_t dev, struct uio *uio, int flag) |
| 486 | { |
| 487 | struct spic_softc *sc; |
| 488 | int l, s, error; |
| 489 | u_char buf[SCBUFLEN]; |
| 490 | |
| 491 | sc = devclass_get_softc(spic_devclass, 0); |
| 492 | |
| 493 | if (uio->uio_resid <= 0) /* What kind of a read is this?! */ |
| 494 | return 0; |
| 495 | |
| 496 | s = spltty(); |
| 497 | while (!(sc->sc_count)) { |
| 498 | sc->sc_sleeping=1; |
| 499 | error = tsleep((caddr_t) sc, PCATCH, "jogrea", 0); |
| 500 | sc->sc_sleeping=0; |
| 501 | if (error) { |
| 502 | splx(s); |
| 503 | return error; |
| 504 | } |
| 505 | } |
| 506 | splx(s); |
| 507 | |
| 508 | s = spltty(); |
| 509 | l = min(uio->uio_resid, sc->sc_count); |
| 510 | bcopy(sc->sc_buf, buf, l); |
| 511 | sc->sc_count -= l; |
| 512 | bcopy(sc->sc_buf + l, sc->sc_buf, l); |
| 513 | splx(s); |
| 514 | return uiomove(buf, l, uio); |
| 515 | |
| 516 | } |
| 517 | |
| 518 | static int |
| 519 | spicioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) |
| 520 | { |
| 521 | struct spic_softc *sc; |
| 522 | |
| 523 | sc = devclass_get_softc(spic_devclass, 0); |
| 524 | |
| 525 | return EIO; |
| 526 | } |
| 527 | |
| 528 | static int |
| 529 | spicpoll(dev_t dev, int events, struct thread *td) |
| 530 | { |
| 531 | struct spic_softc *sc; |
| 532 | struct proc *p; |
| 533 | struct proc *p1; |
| 534 | int revents = 0, s; |
| 535 | |
| 536 | p = td->td_proc; |
| 537 | KKASSERT(p); |
| 538 | |
| 539 | sc = devclass_get_softc(spic_devclass, 0); |
| 540 | s = spltty(); |
| 541 | if (events & (POLLIN | POLLRDNORM)) { |
| 542 | if (sc->sc_count) |
| 543 | revents |= events & (POLLIN | POLLRDNORM); |
| 544 | else { |
| 545 | if (sc->sc_rsel.si_pid && (p1=pfind(sc->sc_rsel.si_pid)) |
| 546 | && p1->p_wchan == (caddr_t)&selwait) |
| 547 | sc->sc_rsel.si_flags = SI_COLL; |
| 548 | else |
| 549 | sc->sc_rsel.si_pid = p->p_pid; |
| 550 | } |
| 551 | } |
| 552 | splx(s); |
| 553 | |
| 554 | return revents; |
| 555 | } |
| 556 | |
| 557 | |
| 558 | static device_method_t spic_methods[] = { |
| 559 | DEVMETHOD(device_probe, spic_probe), |
| 560 | DEVMETHOD(device_attach, spic_attach), |
| 561 | |
| 562 | { 0, 0 } |
| 563 | }; |
| 564 | |
| 565 | static driver_t spic_driver = { |
| 566 | "spic", |
| 567 | spic_methods, |
| 568 | sizeof(struct spic_softc), |
| 569 | }; |
| 570 | |
| 571 | DRIVER_MODULE(spic, isa, spic_driver, spic_devclass, 0, 0); |
| 572 | |