acpi_ibm.c revision 169031
1/*- 2 * Copyright (c) 2004 Takanori Watanabe 3 * Copyright (c) 2005 Markus Brueffer <markus@FreeBSD.org> 4 * 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: head/sys/dev/acpi_support/acpi_ibm.c 169031 2007-04-24 23:09:37Z markus $"); 30 31/* 32 * Driver for extra ACPI-controlled gadgets found on IBM ThinkPad laptops. 33 * Inspired by the ibm-acpi and tpb projects which implement these features 34 * on Linux. 35 * 36 * acpi-ibm: <http://ibm-acpi.sourceforge.net/> 37 * tpb: <http://www.nongnu.org/tpb/> 38 */ 39 40#include "opt_acpi.h" 41#include <sys/param.h> 42#include <sys/kernel.h> 43#include <sys/bus.h> 44#include <machine/cpufunc.h> 45#include <contrib/dev/acpica/acpi.h> 46#include "acpi_if.h" 47#include <sys/module.h> 48#include <dev/acpica/acpivar.h> 49#include <dev/led/led.h> 50#include <sys/sysctl.h> 51#include <machine/clock.h> 52 53#define _COMPONENT ACPI_OEM 54ACPI_MODULE_NAME("IBM") 55 56/* Internal methods */ 57#define ACPI_IBM_METHOD_EVENTS 1 58#define ACPI_IBM_METHOD_EVENTMASK 2 59#define ACPI_IBM_METHOD_HOTKEY 3 60#define ACPI_IBM_METHOD_BRIGHTNESS 4 61#define ACPI_IBM_METHOD_VOLUME 5 62#define ACPI_IBM_METHOD_MUTE 6 63#define ACPI_IBM_METHOD_THINKLIGHT 7 64#define ACPI_IBM_METHOD_BLUETOOTH 8 65#define ACPI_IBM_METHOD_WLAN 9 66#define ACPI_IBM_METHOD_FANSPEED 10 67#define ACPI_IBM_METHOD_FANLEVEL 11 68#define ACPI_IBM_METHOD_FANSTATUS 12 69#define ACPI_IBM_METHOD_THERMAL 13 70 71/* Hotkeys/Buttons */ 72#define IBM_RTC_HOTKEY1 0x64 73#define IBM_RTC_MASK_HOME (1 << 0) 74#define IBM_RTC_MASK_SEARCH (1 << 1) 75#define IBM_RTC_MASK_MAIL (1 << 2) 76#define IBM_RTC_MASK_WLAN (1 << 5) 77#define IBM_RTC_HOTKEY2 0x65 78#define IBM_RTC_MASK_THINKPAD (1 << 3) 79#define IBM_RTC_MASK_ZOOM (1 << 5) 80#define IBM_RTC_MASK_VIDEO (1 << 6) 81#define IBM_RTC_MASK_HIBERNATE (1 << 7) 82#define IBM_RTC_THINKLIGHT 0x66 83#define IBM_RTC_MASK_THINKLIGHT (1 << 4) 84#define IBM_RTC_SCREENEXPAND 0x67 85#define IBM_RTC_MASK_SCREENEXPAND (1 << 5) 86#define IBM_RTC_BRIGHTNESS 0x6c 87#define IBM_RTC_MASK_BRIGHTNESS (1 << 5) 88#define IBM_RTC_VOLUME 0x6e 89#define IBM_RTC_MASK_VOLUME (1 << 7) 90 91/* Embedded Controller registers */ 92#define IBM_EC_BRIGHTNESS 0x31 93#define IBM_EC_MASK_BRI 0x7 94#define IBM_EC_VOLUME 0x30 95#define IBM_EC_MASK_VOL 0xf 96#define IBM_EC_MASK_MUTE (1 << 6) 97#define IBM_EC_FANSTATUS 0x2F 98#define IBM_EC_MASK_FANLEVEL 0x3f 99#define IBM_EC_MASK_FANDISENGAGED (1 << 6) 100#define IBM_EC_MASK_FANSTATUS (1 << 7) 101#define IBM_EC_FANSPEED 0x84 102 103/* CMOS Commands */ 104#define IBM_CMOS_VOLUME_DOWN 0 105#define IBM_CMOS_VOLUME_UP 1 106#define IBM_CMOS_VOLUME_MUTE 2 107#define IBM_CMOS_BRIGHTNESS_UP 4 108#define IBM_CMOS_BRIGHTNESS_DOWN 5 109 110/* ACPI methods */ 111#define IBM_NAME_KEYLIGHT "KBLT" 112#define IBM_NAME_WLAN_BT_GET "GBDC" 113#define IBM_NAME_WLAN_BT_SET "SBDC" 114#define IBM_NAME_MASK_BT (1 << 1) 115#define IBM_NAME_MASK_WLAN (1 << 2) 116#define IBM_NAME_THERMAL_GET "TMP7" 117#define IBM_NAME_THERMAL_UPDT "UPDT" 118 119#define IBM_NAME_EVENTS_STATUS_GET "DHKC" 120#define IBM_NAME_EVENTS_MASK_GET "DHKN" 121#define IBM_NAME_EVENTS_STATUS_SET "MHKC" 122#define IBM_NAME_EVENTS_MASK_SET "MHKM" 123#define IBM_NAME_EVENTS_GET "MHKP" 124#define IBM_NAME_EVENTS_AVAILMASK "MHKA" 125 126#define ABS(x) (((x) < 0)? -(x) : (x)) 127 128struct acpi_ibm_softc { 129 device_t dev; 130 ACPI_HANDLE handle; 131 132 /* Embedded controller */ 133 device_t ec_dev; 134 ACPI_HANDLE ec_handle; 135 136 /* CMOS */ 137 ACPI_HANDLE cmos_handle; 138 139 /* Fan status */ 140 ACPI_HANDLE fan_handle; 141 int fan_levels; 142 143 /* Keylight commands and states */ 144 ACPI_HANDLE light_handle; 145 int light_cmd_on; 146 int light_cmd_off; 147 int light_val; 148 int light_get_supported; 149 int light_set_supported; 150 151 /* led(4) interface */ 152 struct cdev *led_dev; 153 int led_busy; 154 int led_state; 155 156 int wlan_bt_flags; 157 int thermal_updt_supported; 158 159 unsigned int events_availmask; 160 unsigned int events_initialmask; 161 int events_mask_supported; 162 int events_enable; 163 164 struct sysctl_ctx_list *sysctl_ctx; 165 struct sysctl_oid *sysctl_tree; 166}; 167 168static struct { 169 char *name; 170 int method; 171 char *description; 172 int access; 173} acpi_ibm_sysctls[] = { 174 { 175 .name = "events", 176 .method = ACPI_IBM_METHOD_EVENTS, 177 .description = "ACPI events enable", 178 .access = CTLTYPE_INT | CTLFLAG_RW 179 }, 180 { 181 .name = "eventmask", 182 .method = ACPI_IBM_METHOD_EVENTMASK, 183 .description = "ACPI eventmask", 184 .access = CTLTYPE_INT | CTLFLAG_RW 185 }, 186 { 187 .name = "hotkey", 188 .method = ACPI_IBM_METHOD_HOTKEY, 189 .description = "Key Status", 190 .access = CTLTYPE_INT | CTLFLAG_RD 191 }, 192 { 193 .name = "lcd_brightness", 194 .method = ACPI_IBM_METHOD_BRIGHTNESS, 195 .description = "LCD Brightness", 196 .access = CTLTYPE_INT | CTLFLAG_RW 197 }, 198 { 199 .name = "volume", 200 .method = ACPI_IBM_METHOD_VOLUME, 201 .description = "Volume", 202 .access = CTLTYPE_INT | CTLFLAG_RW 203 }, 204 { 205 .name = "mute", 206 .method = ACPI_IBM_METHOD_MUTE, 207 .description = "Mute", 208 .access = CTLTYPE_INT | CTLFLAG_RW 209 }, 210 { 211 .name = "thinklight", 212 .method = ACPI_IBM_METHOD_THINKLIGHT, 213 .description = "Thinklight enable", 214 .access = CTLTYPE_INT | CTLFLAG_RW 215 }, 216 { 217 .name = "bluetooth", 218 .method = ACPI_IBM_METHOD_BLUETOOTH, 219 .description = "Bluetooth enable", 220 .access = CTLTYPE_INT | CTLFLAG_RW 221 }, 222 { 223 .name = "wlan", 224 .method = ACPI_IBM_METHOD_WLAN, 225 .description = "WLAN enable", 226 .access = CTLTYPE_INT | CTLFLAG_RD 227 }, 228 { 229 .name = "fan_speed", 230 .method = ACPI_IBM_METHOD_FANSPEED, 231 .description = "Fan speed", 232 .access = CTLTYPE_INT | CTLFLAG_RD 233 }, 234 { 235 .name = "fan_level", 236 .method = ACPI_IBM_METHOD_FANLEVEL, 237 .description = "Fan level", 238 .access = CTLTYPE_INT | CTLFLAG_RW 239 }, 240 { 241 .name = "fan", 242 .method = ACPI_IBM_METHOD_FANSTATUS, 243 .description = "Fan enable", 244 .access = CTLTYPE_INT | CTLFLAG_RW 245 }, 246 247 { NULL, 0, NULL, 0 } 248}; 249 250ACPI_SERIAL_DECL(ibm, "ACPI IBM extras"); 251 252static int acpi_ibm_probe(device_t dev); 253static int acpi_ibm_attach(device_t dev); 254static int acpi_ibm_detach(device_t dev); 255 256static void ibm_led(void *softc, int onoff); 257static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused); 258 259static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS); 260static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method); 261static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method); 262static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val); 263 264static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val); 265static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS); 266static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context); 267 268static device_method_t acpi_ibm_methods[] = { 269 /* Device interface */ 270 DEVMETHOD(device_probe, acpi_ibm_probe), 271 DEVMETHOD(device_attach, acpi_ibm_attach), 272 DEVMETHOD(device_detach, acpi_ibm_detach), 273 274 {0, 0} 275}; 276 277static driver_t acpi_ibm_driver = { 278 "acpi_ibm", 279 acpi_ibm_methods, 280 sizeof(struct acpi_ibm_softc), 281}; 282 283static devclass_t acpi_ibm_devclass; 284 285DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass, 286 0, 0); 287MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1); 288static char *ibm_ids[] = {"IBM0057", "IBM0068", NULL}; 289 290static void 291ibm_led(void *softc, int onoff) 292{ 293 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc; 294 295 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 296 297 if (sc->led_busy) 298 return; 299 300 sc->led_busy = 1; 301 sc->led_state = onoff; 302 303 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc); 304} 305 306static void 307ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused) 308{ 309 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 310 311 ACPI_SERIAL_BEGIN(ibm); 312 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state); 313 ACPI_SERIAL_END(ibm); 314 315 sc->led_busy = 0; 316} 317 318static int 319acpi_ibm_probe(device_t dev) 320{ 321 if (acpi_disabled("ibm") || 322 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL || 323 device_get_unit(dev) != 0) 324 return (ENXIO); 325 326 device_set_desc(dev, "IBM ThinkPad ACPI Extras"); 327 328 return (0); 329} 330 331static int 332acpi_ibm_attach(device_t dev) 333{ 334 struct acpi_ibm_softc *sc; 335 struct acpi_softc *acpi_sc; 336 devclass_t ec_devclass; 337 338 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 339 340 sc = device_get_softc(dev); 341 sc->dev = dev; 342 sc->handle = acpi_get_handle(dev); 343 344 acpi_sc = acpi_device_get_parent_softc(dev); 345 346 /* Look for the first embedded controller */ 347 if (!(ec_devclass = devclass_find ("acpi_ec"))) { 348 if (bootverbose) 349 device_printf(dev, "Couldn't find acpi_ec devclass\n"); 350 return (EINVAL); 351 } 352 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) { 353 if (bootverbose) 354 device_printf(dev, "Couldn't find acpi_ec device\n"); 355 return (EINVAL); 356 } 357 sc->ec_handle = acpi_get_handle(sc->ec_dev); 358 359 ACPI_SERIAL_BEGIN(ibm); 360 361 /* Get the sysctl tree */ 362 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 363 sc->sysctl_tree = device_get_sysctl_tree(dev); 364 365 /* Look for event mask and hook up the nodes */ 366 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle, 367 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask)); 368 369 if (sc->events_mask_supported) { 370 SYSCTL_ADD_INT(sc->sysctl_ctx, 371 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 372 "initialmask", CTLFLAG_RD, 373 &sc->events_initialmask, 0, "Initial eventmask"); 374 375 /* The availmask is the bitmask of supported events */ 376 if (ACPI_FAILURE(acpi_GetInteger(sc->handle, 377 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask))) 378 sc->events_availmask = 0xffffffff; 379 380 SYSCTL_ADD_INT(sc->sysctl_ctx, 381 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 382 "availmask", CTLFLAG_RD, 383 &sc->events_availmask, 0, "Mask of supported events"); 384 } 385 386 /* Hook up proc nodes */ 387 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 388 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method)) 389 continue; 390 391 SYSCTL_ADD_PROC(sc->sysctl_ctx, 392 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 393 acpi_ibm_sysctls[i].name, acpi_ibm_sysctls[i].access, 394 sc, i, acpi_ibm_sysctl, "I", 395 acpi_ibm_sysctls[i].description); 396 } 397 398 /* Hook up thermal node */ 399 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) { 400 SYSCTL_ADD_PROC(sc->sysctl_ctx, 401 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 402 "thermal", CTLTYPE_STRING | CTLFLAG_RD, 403 sc, 0, acpi_ibm_thermal_sysctl, "I", 404 "Thermal zones"); 405 } 406 407 ACPI_SERIAL_END(ibm); 408 409 /* Handle notifies */ 410 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 411 acpi_ibm_notify, dev); 412 413 /* Hook up light to led(4) */ 414 if (sc->light_set_supported) 415 sc->led_dev = led_create_state(ibm_led, sc, "thinklight", sc->light_val); 416 417 return (0); 418} 419 420static int 421acpi_ibm_detach(device_t dev) 422{ 423 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 424 425 struct acpi_ibm_softc *sc = device_get_softc(dev); 426 427 /* Disable events and restore eventmask */ 428 ACPI_SERIAL_BEGIN(ibm); 429 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0); 430 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask); 431 ACPI_SERIAL_END(ibm); 432 433 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify); 434 435 if (sc->led_dev != NULL) 436 led_destroy(sc->led_dev); 437 438 return (0); 439} 440 441static int 442acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val) 443{ 444 ACPI_OBJECT arg[2]; 445 ACPI_OBJECT_LIST args; 446 ACPI_STATUS status; 447 448 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 449 ACPI_SERIAL_ASSERT(ibm); 450 451 args.Count = 2; 452 args.Pointer = arg; 453 arg[0].Type = ACPI_TYPE_INTEGER; 454 arg[1].Type = ACPI_TYPE_INTEGER; 455 456 for (int i = 0; i < 32; ++i) { 457 arg[0].Integer.Value = i+1; 458 arg[1].Integer.Value = (((1 << i) & val) != 0); 459 status = AcpiEvaluateObject(sc->handle, 460 IBM_NAME_EVENTS_MASK_SET, &args, NULL); 461 462 if (ACPI_FAILURE(status)) 463 return (status); 464 } 465 466 return (0); 467} 468 469static int 470acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS) 471{ 472 struct acpi_ibm_softc *sc; 473 int arg; 474 int error = 0; 475 int function; 476 int method; 477 478 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 479 480 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 481 function = oidp->oid_arg2; 482 method = acpi_ibm_sysctls[function].method; 483 484 ACPI_SERIAL_BEGIN(ibm); 485 arg = acpi_ibm_sysctl_get(sc, method); 486 error = sysctl_handle_int(oidp, &arg, 0, req); 487 488 /* Sanity check */ 489 if (error != 0 || req->newptr == NULL) 490 goto out; 491 492 /* Update */ 493 error = acpi_ibm_sysctl_set(sc, method, arg); 494 495out: 496 ACPI_SERIAL_END(ibm); 497 return (error); 498} 499 500static int 501acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method) 502{ 503 ACPI_INTEGER val_ec; 504 int val = 0, key; 505 506 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 507 ACPI_SERIAL_ASSERT(ibm); 508 509 switch (method) { 510 case ACPI_IBM_METHOD_EVENTS: 511 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val); 512 break; 513 514 case ACPI_IBM_METHOD_EVENTMASK: 515 if (sc->events_mask_supported) 516 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val); 517 break; 518 519 case ACPI_IBM_METHOD_HOTKEY: 520 /* 521 * Construct the hotkey as a bitmask as illustrated below. 522 * Note that whenever a key was pressed, the respecting bit 523 * toggles and nothing else changes. 524 * +--+--+-+-+-+-+-+-+-+-+-+-+ 525 * |11|10|9|8|7|6|5|4|3|2|1|0| 526 * +--+--+-+-+-+-+-+-+-+-+-+-+ 527 * | | | | | | | | | | | | 528 * | | | | | | | | | | | +- Home Button 529 * | | | | | | | | | | +--- Search Button 530 * | | | | | | | | | +----- Mail Button 531 * | | | | | | | | +------- Thinkpad Button 532 * | | | | | | | +--------- Zoom (Fn + Space) 533 * | | | | | | +----------- WLAN Button 534 * | | | | | +------------- Video Button 535 * | | | | +--------------- Hibernate Button 536 * | | | +----------------- Thinklight Button 537 * | | +------------------- Screen expand (Fn + F8) 538 * | +--------------------- Brightness 539 * +------------------------ Volume/Mute 540 */ 541 key = rtcin(IBM_RTC_HOTKEY1); 542 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key; 543 key = rtcin(IBM_RTC_HOTKEY2); 544 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key; 545 val |= (IBM_RTC_MASK_ZOOM & key) >> 1; 546 key = rtcin(IBM_RTC_THINKLIGHT); 547 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 548 key = rtcin(IBM_RTC_SCREENEXPAND); 549 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 550 key = rtcin(IBM_RTC_BRIGHTNESS); 551 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5; 552 key = rtcin(IBM_RTC_VOLUME); 553 val |= (IBM_RTC_MASK_VOLUME & key) << 4; 554 break; 555 556 case ACPI_IBM_METHOD_BRIGHTNESS: 557 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 558 val = val_ec & IBM_EC_MASK_BRI; 559 break; 560 561 case ACPI_IBM_METHOD_VOLUME: 562 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 563 val = val_ec & IBM_EC_MASK_VOL; 564 break; 565 566 case ACPI_IBM_METHOD_MUTE: 567 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 568 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 569 break; 570 571 case ACPI_IBM_METHOD_THINKLIGHT: 572 if (sc->light_get_supported) 573 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val); 574 else 575 val = sc->light_val; 576 break; 577 578 case ACPI_IBM_METHOD_BLUETOOTH: 579 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 580 sc->wlan_bt_flags = val; 581 val = ((val & IBM_NAME_MASK_BT) != 0); 582 break; 583 584 case ACPI_IBM_METHOD_WLAN: 585 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 586 sc->wlan_bt_flags = val; 587 val = ((val & IBM_NAME_MASK_WLAN) != 0); 588 break; 589 590 case ACPI_IBM_METHOD_FANSPEED: 591 if (sc->fan_handle) { 592 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val))) 593 val = -1; 594 } 595 else { 596 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2); 597 val = val_ec; 598 } 599 break; 600 601 case ACPI_IBM_METHOD_FANLEVEL: 602 /* 603 * The IBM_EC_FANSTATUS register works as follows: 604 * Bit 0-5 indicate the level at which the fan operates. Only 605 * values between 0 and 7 have an effect. Everything 606 * above 7 is treated the same as level 7 607 * Bit 6 overrides the fan speed limit if set to 1 608 * Bit 7 indicates at which mode the fan operates: 609 * manual (0) or automatic (1) 610 */ 611 if (!sc->fan_handle) { 612 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 613 val = val_ec & IBM_EC_MASK_FANLEVEL; 614 } 615 break; 616 617 case ACPI_IBM_METHOD_FANSTATUS: 618 if (!sc->fan_handle) { 619 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 620 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS; 621 } 622 else 623 val = -1; 624 break; 625 } 626 627 return (val); 628} 629 630static int 631acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg) 632{ 633 int val, step; 634 ACPI_INTEGER val_ec; 635 ACPI_OBJECT Arg; 636 ACPI_OBJECT_LIST Args; 637 ACPI_STATUS status; 638 639 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 640 ACPI_SERIAL_ASSERT(ibm); 641 642 switch (method) { 643 case ACPI_IBM_METHOD_EVENTS: 644 if (arg < 0 || arg > 1) 645 return (EINVAL); 646 647 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg); 648 if (ACPI_FAILURE(status)) 649 return (status); 650 if (sc->events_mask_supported) 651 return acpi_ibm_eventmask_set(sc, sc->events_availmask); 652 break; 653 654 case ACPI_IBM_METHOD_EVENTMASK: 655 if (sc->events_mask_supported) 656 return acpi_ibm_eventmask_set(sc, arg); 657 break; 658 659 case ACPI_IBM_METHOD_BRIGHTNESS: 660 if (arg < 0 || arg > 7) 661 return (EINVAL); 662 663 if (sc->cmos_handle) { 664 /* Read the current brightness */ 665 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 666 if (ACPI_FAILURE(status)) 667 return (status); 668 val = val_ec & IBM_EC_MASK_BRI; 669 670 Args.Count = 1; 671 Args.Pointer = &Arg; 672 Arg.Type = ACPI_TYPE_INTEGER; 673 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : IBM_CMOS_BRIGHTNESS_DOWN; 674 675 step = (arg > val) ? 1 : -1; 676 for (int i = val; i != arg; i += step) { 677 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 678 if (ACPI_FAILURE(status)) 679 break; 680 } 681 } 682 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1); 683 break; 684 685 case ACPI_IBM_METHOD_VOLUME: 686 if (arg < 0 || arg > 14) 687 return (EINVAL); 688 689 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 690 if (ACPI_FAILURE(status)) 691 return (status); 692 693 if (sc->cmos_handle) { 694 val = val_ec & IBM_EC_MASK_VOL; 695 696 Args.Count = 1; 697 Args.Pointer = &Arg; 698 Arg.Type = ACPI_TYPE_INTEGER; 699 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : IBM_CMOS_VOLUME_DOWN; 700 701 step = (arg > val) ? 1 : -1; 702 for (int i = val; i != arg; i += step) { 703 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 704 if (ACPI_FAILURE(status)) 705 break; 706 } 707 } 708 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, arg + (val_ec & (~IBM_EC_MASK_VOL)), 1); 709 break; 710 711 case ACPI_IBM_METHOD_MUTE: 712 if (arg < 0 || arg > 1) 713 return (EINVAL); 714 715 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 716 if (ACPI_FAILURE(status)) 717 return (status); 718 719 if (sc->cmos_handle) { 720 val = val_ec & IBM_EC_MASK_VOL; 721 722 Args.Count = 1; 723 Args.Pointer = &Arg; 724 Arg.Type = ACPI_TYPE_INTEGER; 725 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE; 726 727 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 728 if (ACPI_FAILURE(status)) 729 break; 730 } 731 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, (arg==1) ? val_ec | IBM_EC_MASK_MUTE : val_ec & (~IBM_EC_MASK_MUTE), 1); 732 break; 733 734 case ACPI_IBM_METHOD_THINKLIGHT: 735 if (arg < 0 || arg > 1) 736 return (EINVAL); 737 738 if (sc->light_set_supported) { 739 Args.Count = 1; 740 Args.Pointer = &Arg; 741 Arg.Type = ACPI_TYPE_INTEGER; 742 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off; 743 744 status = AcpiEvaluateObject(sc->light_handle, NULL, &Args, NULL); 745 if (ACPI_SUCCESS(status)) 746 sc->light_val = arg; 747 return (status); 748 } 749 break; 750 751 case ACPI_IBM_METHOD_BLUETOOTH: 752 if (arg < 0 || arg > 1) 753 return (EINVAL); 754 755 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : sc->wlan_bt_flags & (~IBM_NAME_MASK_BT); 756 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val); 757 break; 758 759 case ACPI_IBM_METHOD_FANLEVEL: 760 if (arg < 0 || arg > 7) 761 return (EINVAL); 762 763 if (!sc->fan_handle) { 764 /* Read the current fanstatus */ 765 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 766 val = val_ec & (~IBM_EC_MASK_FANLEVEL); 767 768 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1); 769 } 770 break; 771 772 case ACPI_IBM_METHOD_FANSTATUS: 773 if (arg < 0 || arg > 1) 774 return (EINVAL); 775 776 if (!sc->fan_handle) { 777 /* Read the current fanstatus */ 778 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 779 780 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, 781 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1); 782 } 783 break; 784 } 785 786 return (0); 787} 788 789static int 790acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method) 791{ 792 int dummy; 793 ACPI_OBJECT_TYPE cmos_t; 794 ACPI_HANDLE ledb_handle; 795 796 switch (method) { 797 case ACPI_IBM_METHOD_EVENTS: 798 /* Events are disabled by default */ 799 return (TRUE); 800 801 case ACPI_IBM_METHOD_EVENTMASK: 802 return (sc->events_mask_supported); 803 804 case ACPI_IBM_METHOD_HOTKEY: 805 case ACPI_IBM_METHOD_BRIGHTNESS: 806 case ACPI_IBM_METHOD_VOLUME: 807 case ACPI_IBM_METHOD_MUTE: 808 /* EC is required here, which was aready checked before */ 809 return (TRUE); 810 811 case ACPI_IBM_METHOD_THINKLIGHT: 812 sc->cmos_handle = NULL; 813 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger( 814 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val)); 815 816 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) || 817 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) || 818 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) && 819 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) && 820 cmos_t == ACPI_TYPE_METHOD) { 821 sc->light_cmd_on = 0x0c; 822 sc->light_cmd_off = 0x0d; 823 sc->cmos_handle = sc->light_handle; 824 } 825 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) { 826 sc->light_cmd_on = 1; 827 sc->light_cmd_off = 0; 828 } 829 else 830 sc->light_handle = NULL; 831 832 sc->light_set_supported = (sc->light_handle && 833 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle))); 834 835 if (sc->light_get_supported) 836 return (TRUE); 837 838 if (sc->light_set_supported) { 839 sc->light_val = 0; 840 return (TRUE); 841 } 842 843 return (FALSE); 844 845 case ACPI_IBM_METHOD_BLUETOOTH: 846 case ACPI_IBM_METHOD_WLAN: 847 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy))) 848 return (TRUE); 849 return (FALSE); 850 851 case ACPI_IBM_METHOD_FANSPEED: 852 /* 853 * Some models report the fan speed in levels from 0-7 854 * Newer models report it contiguously 855 */ 856 sc->fan_levels = 857 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) || 858 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle))); 859 return (TRUE); 860 861 case ACPI_IBM_METHOD_FANLEVEL: 862 case ACPI_IBM_METHOD_FANSTATUS: 863 /* 864 * Fan status is only supported on those models, 865 * which report fan RPM contiguously, not in levels 866 */ 867 if (sc->fan_levels) 868 return (FALSE); 869 return (TRUE); 870 871 case ACPI_IBM_METHOD_THERMAL: 872 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) { 873 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy)); 874 return (TRUE); 875 } 876 return (FALSE); 877 } 878 return (FALSE); 879} 880 881static int 882acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS) 883{ 884 struct acpi_ibm_softc *sc; 885 int error = 0; 886 char temp_cmd[] = "TMP0"; 887 int temp[8]; 888 889 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 890 891 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 892 893 ACPI_SERIAL_BEGIN(ibm); 894 895 for (int i = 0; i < 8; ++i) { 896 temp_cmd[3] = '0' + i; 897 898 /* 899 * The TMPx methods seem to return +/- 128 or 0 900 * when the respecting sensor is not available 901 */ 902 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 903 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) 904 temp[i] = -1; 905 else if (sc->thermal_updt_supported) 906 /* Temperature is reported in tenth of Kelvin */ 907 temp[i] = (temp[i] - 2732 + 5) / 10; 908 } 909 910 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req); 911 912 ACPI_SERIAL_END(ibm); 913 return (error); 914} 915 916static void 917acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context) 918{ 919 int event, arg, type; 920 device_t dev = context; 921 struct acpi_ibm_softc *sc = device_get_softc(dev); 922 923 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); 924 925 if (notify != 0x80) 926 device_printf(dev, "Unknown notify\n"); 927 928 for (;;) { 929 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event); 930 931 if (event == 0) 932 break; 933 934 935 type = (event >> 12) & 0xf; 936 arg = event & 0xfff; 937 switch (type) { 938 case 1: 939 if (!(sc->events_availmask & (1 << (arg - 1)))) { 940 device_printf(dev, "Unknown key %d\n", arg); 941 break; 942 } 943 944 /* Notify devd(8) */ 945 acpi_UserNotify("IBM", h, (arg & 0xff)); 946 break; 947 default: 948 break; 949 } 950 } 951} 952