acpi_ibm.c revision 273736
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: stable/10/sys/dev/acpi_support/acpi_ibm.c 273736 2014-10-27 14:38:00Z hselasky $"); 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 46#include <contrib/dev/acpica/include/acpi.h> 47#include <contrib/dev/acpica/include/accommon.h> 48 49#include "acpi_if.h" 50#include <sys/module.h> 51#include <dev/acpica/acpivar.h> 52#include <dev/led/led.h> 53#include <sys/power.h> 54#include <sys/sbuf.h> 55#include <sys/sysctl.h> 56#include <isa/rtc.h> 57 58#define _COMPONENT ACPI_OEM 59ACPI_MODULE_NAME("IBM") 60 61/* Internal methods */ 62#define ACPI_IBM_METHOD_EVENTS 1 63#define ACPI_IBM_METHOD_EVENTMASK 2 64#define ACPI_IBM_METHOD_HOTKEY 3 65#define ACPI_IBM_METHOD_BRIGHTNESS 4 66#define ACPI_IBM_METHOD_VOLUME 5 67#define ACPI_IBM_METHOD_MUTE 6 68#define ACPI_IBM_METHOD_THINKLIGHT 7 69#define ACPI_IBM_METHOD_BLUETOOTH 8 70#define ACPI_IBM_METHOD_WLAN 9 71#define ACPI_IBM_METHOD_FANSPEED 10 72#define ACPI_IBM_METHOD_FANLEVEL 11 73#define ACPI_IBM_METHOD_FANSTATUS 12 74#define ACPI_IBM_METHOD_THERMAL 13 75#define ACPI_IBM_METHOD_HANDLEREVENTS 14 76 77/* Hotkeys/Buttons */ 78#define IBM_RTC_HOTKEY1 0x64 79#define IBM_RTC_MASK_HOME (1 << 0) 80#define IBM_RTC_MASK_SEARCH (1 << 1) 81#define IBM_RTC_MASK_MAIL (1 << 2) 82#define IBM_RTC_MASK_WLAN (1 << 5) 83#define IBM_RTC_HOTKEY2 0x65 84#define IBM_RTC_MASK_THINKPAD (1 << 3) 85#define IBM_RTC_MASK_ZOOM (1 << 5) 86#define IBM_RTC_MASK_VIDEO (1 << 6) 87#define IBM_RTC_MASK_HIBERNATE (1 << 7) 88#define IBM_RTC_THINKLIGHT 0x66 89#define IBM_RTC_MASK_THINKLIGHT (1 << 4) 90#define IBM_RTC_SCREENEXPAND 0x67 91#define IBM_RTC_MASK_SCREENEXPAND (1 << 5) 92#define IBM_RTC_BRIGHTNESS 0x6c 93#define IBM_RTC_MASK_BRIGHTNESS (1 << 5) 94#define IBM_RTC_VOLUME 0x6e 95#define IBM_RTC_MASK_VOLUME (1 << 7) 96 97/* Embedded Controller registers */ 98#define IBM_EC_BRIGHTNESS 0x31 99#define IBM_EC_MASK_BRI 0x7 100#define IBM_EC_VOLUME 0x30 101#define IBM_EC_MASK_VOL 0xf 102#define IBM_EC_MASK_MUTE (1 << 6) 103#define IBM_EC_FANSTATUS 0x2F 104#define IBM_EC_MASK_FANLEVEL 0x3f 105#define IBM_EC_MASK_FANDISENGAGED (1 << 6) 106#define IBM_EC_MASK_FANSTATUS (1 << 7) 107#define IBM_EC_FANSPEED 0x84 108 109/* CMOS Commands */ 110#define IBM_CMOS_VOLUME_DOWN 0 111#define IBM_CMOS_VOLUME_UP 1 112#define IBM_CMOS_VOLUME_MUTE 2 113#define IBM_CMOS_BRIGHTNESS_UP 4 114#define IBM_CMOS_BRIGHTNESS_DOWN 5 115 116/* ACPI methods */ 117#define IBM_NAME_KEYLIGHT "KBLT" 118#define IBM_NAME_WLAN_BT_GET "GBDC" 119#define IBM_NAME_WLAN_BT_SET "SBDC" 120#define IBM_NAME_MASK_BT (1 << 1) 121#define IBM_NAME_MASK_WLAN (1 << 2) 122#define IBM_NAME_THERMAL_GET "TMP7" 123#define IBM_NAME_THERMAL_UPDT "UPDT" 124 125#define IBM_NAME_EVENTS_STATUS_GET "DHKC" 126#define IBM_NAME_EVENTS_MASK_GET "DHKN" 127#define IBM_NAME_EVENTS_STATUS_SET "MHKC" 128#define IBM_NAME_EVENTS_MASK_SET "MHKM" 129#define IBM_NAME_EVENTS_GET "MHKP" 130#define IBM_NAME_EVENTS_AVAILMASK "MHKA" 131 132/* Event Code */ 133#define IBM_EVENT_LCD_BACKLIGHT 0x03 134#define IBM_EVENT_SUSPEND_TO_RAM 0x04 135#define IBM_EVENT_BLUETOOTH 0x05 136#define IBM_EVENT_SCREEN_EXPAND 0x07 137#define IBM_EVENT_SUSPEND_TO_DISK 0x0c 138#define IBM_EVENT_BRIGHTNESS_UP 0x10 139#define IBM_EVENT_BRIGHTNESS_DOWN 0x11 140#define IBM_EVENT_THINKLIGHT 0x12 141#define IBM_EVENT_ZOOM 0x14 142#define IBM_EVENT_VOLUME_UP 0x15 143#define IBM_EVENT_VOLUME_DOWN 0x16 144#define IBM_EVENT_MUTE 0x17 145#define IBM_EVENT_ACCESS_IBM_BUTTON 0x18 146 147#define ABS(x) (((x) < 0)? -(x) : (x)) 148 149struct acpi_ibm_softc { 150 device_t dev; 151 ACPI_HANDLE handle; 152 153 /* Embedded controller */ 154 device_t ec_dev; 155 ACPI_HANDLE ec_handle; 156 157 /* CMOS */ 158 ACPI_HANDLE cmos_handle; 159 160 /* Fan status */ 161 ACPI_HANDLE fan_handle; 162 int fan_levels; 163 164 /* Keylight commands and states */ 165 ACPI_HANDLE light_handle; 166 int light_cmd_on; 167 int light_cmd_off; 168 int light_val; 169 int light_get_supported; 170 int light_set_supported; 171 172 /* led(4) interface */ 173 struct cdev *led_dev; 174 int led_busy; 175 int led_state; 176 177 int wlan_bt_flags; 178 int thermal_updt_supported; 179 180 unsigned int events_availmask; 181 unsigned int events_initialmask; 182 int events_mask_supported; 183 int events_enable; 184 185 unsigned int handler_events; 186 187 struct sysctl_ctx_list *sysctl_ctx; 188 struct sysctl_oid *sysctl_tree; 189}; 190 191static struct { 192 char *name; 193 int method; 194 char *description; 195 int flag_rdonly; 196} acpi_ibm_sysctls[] = { 197 { 198 .name = "events", 199 .method = ACPI_IBM_METHOD_EVENTS, 200 .description = "ACPI events enable", 201 }, 202 { 203 .name = "eventmask", 204 .method = ACPI_IBM_METHOD_EVENTMASK, 205 .description = "ACPI eventmask", 206 }, 207 { 208 .name = "hotkey", 209 .method = ACPI_IBM_METHOD_HOTKEY, 210 .description = "Key Status", 211 .flag_rdonly = 1 212 }, 213 { 214 .name = "lcd_brightness", 215 .method = ACPI_IBM_METHOD_BRIGHTNESS, 216 .description = "LCD Brightness", 217 }, 218 { 219 .name = "volume", 220 .method = ACPI_IBM_METHOD_VOLUME, 221 .description = "Volume", 222 }, 223 { 224 .name = "mute", 225 .method = ACPI_IBM_METHOD_MUTE, 226 .description = "Mute", 227 }, 228 { 229 .name = "thinklight", 230 .method = ACPI_IBM_METHOD_THINKLIGHT, 231 .description = "Thinklight enable", 232 }, 233 { 234 .name = "bluetooth", 235 .method = ACPI_IBM_METHOD_BLUETOOTH, 236 .description = "Bluetooth enable", 237 }, 238 { 239 .name = "wlan", 240 .method = ACPI_IBM_METHOD_WLAN, 241 .description = "WLAN enable", 242 .flag_rdonly = 1 243 }, 244 { 245 .name = "fan_speed", 246 .method = ACPI_IBM_METHOD_FANSPEED, 247 .description = "Fan speed", 248 .flag_rdonly = 1 249 }, 250 { 251 .name = "fan_level", 252 .method = ACPI_IBM_METHOD_FANLEVEL, 253 .description = "Fan level", 254 }, 255 { 256 .name = "fan", 257 .method = ACPI_IBM_METHOD_FANSTATUS, 258 .description = "Fan enable", 259 }, 260 261 { NULL, 0, NULL, 0 } 262}; 263 264ACPI_SERIAL_DECL(ibm, "ACPI IBM extras"); 265 266static int acpi_ibm_probe(device_t dev); 267static int acpi_ibm_attach(device_t dev); 268static int acpi_ibm_detach(device_t dev); 269static int acpi_ibm_resume(device_t dev); 270 271static void ibm_led(void *softc, int onoff); 272static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused); 273 274static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS); 275static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method); 276static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method); 277static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val); 278 279static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val); 280static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS); 281static int acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS); 282static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context); 283 284static int acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg); 285static int acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg); 286static int acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg); 287static int acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg); 288static int acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg); 289 290static device_method_t acpi_ibm_methods[] = { 291 /* Device interface */ 292 DEVMETHOD(device_probe, acpi_ibm_probe), 293 DEVMETHOD(device_attach, acpi_ibm_attach), 294 DEVMETHOD(device_detach, acpi_ibm_detach), 295 DEVMETHOD(device_resume, acpi_ibm_resume), 296 297 DEVMETHOD_END 298}; 299 300static driver_t acpi_ibm_driver = { 301 "acpi_ibm", 302 acpi_ibm_methods, 303 sizeof(struct acpi_ibm_softc), 304}; 305 306static devclass_t acpi_ibm_devclass; 307 308DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass, 309 0, 0); 310MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1); 311static char *ibm_ids[] = {"IBM0068", "LEN0068", NULL}; 312 313static void 314ibm_led(void *softc, int onoff) 315{ 316 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc; 317 318 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 319 320 if (sc->led_busy) 321 return; 322 323 sc->led_busy = 1; 324 sc->led_state = onoff; 325 326 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc); 327} 328 329static void 330ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused) 331{ 332 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 333 334 ACPI_SERIAL_BEGIN(ibm); 335 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state); 336 ACPI_SERIAL_END(ibm); 337 338 sc->led_busy = 0; 339} 340 341static int 342acpi_ibm_probe(device_t dev) 343{ 344 if (acpi_disabled("ibm") || 345 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL || 346 device_get_unit(dev) != 0) 347 return (ENXIO); 348 349 device_set_desc(dev, "IBM ThinkPad ACPI Extras"); 350 351 return (0); 352} 353 354static int 355acpi_ibm_attach(device_t dev) 356{ 357 struct acpi_ibm_softc *sc; 358 devclass_t ec_devclass; 359 360 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 361 362 sc = device_get_softc(dev); 363 sc->dev = dev; 364 sc->handle = acpi_get_handle(dev); 365 366 /* Look for the first embedded controller */ 367 if (!(ec_devclass = devclass_find ("acpi_ec"))) { 368 if (bootverbose) 369 device_printf(dev, "Couldn't find acpi_ec devclass\n"); 370 return (EINVAL); 371 } 372 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) { 373 if (bootverbose) 374 device_printf(dev, "Couldn't find acpi_ec device\n"); 375 return (EINVAL); 376 } 377 sc->ec_handle = acpi_get_handle(sc->ec_dev); 378 379 /* Get the sysctl tree */ 380 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 381 sc->sysctl_tree = device_get_sysctl_tree(dev); 382 383 /* Look for event mask and hook up the nodes */ 384 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle, 385 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask)); 386 387 if (sc->events_mask_supported) { 388 SYSCTL_ADD_UINT(sc->sysctl_ctx, 389 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 390 "initialmask", CTLFLAG_RD, 391 &sc->events_initialmask, 0, "Initial eventmask"); 392 393 /* The availmask is the bitmask of supported events */ 394 if (ACPI_FAILURE(acpi_GetInteger(sc->handle, 395 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask))) 396 sc->events_availmask = 0xffffffff; 397 398 SYSCTL_ADD_UINT(sc->sysctl_ctx, 399 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 400 "availmask", CTLFLAG_RD, 401 &sc->events_availmask, 0, "Mask of supported events"); 402 } 403 404 /* Hook up proc nodes */ 405 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 406 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method)) 407 continue; 408 409 if (acpi_ibm_sysctls[i].flag_rdonly != 0) { 410 SYSCTL_ADD_PROC(sc->sysctl_ctx, 411 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 412 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RD, 413 sc, i, acpi_ibm_sysctl, "I", 414 acpi_ibm_sysctls[i].description); 415 } else { 416 SYSCTL_ADD_PROC(sc->sysctl_ctx, 417 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 418 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RW, 419 sc, i, acpi_ibm_sysctl, "I", 420 acpi_ibm_sysctls[i].description); 421 } 422 } 423 424 /* Hook up thermal node */ 425 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) { 426 SYSCTL_ADD_PROC(sc->sysctl_ctx, 427 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 428 "thermal", CTLTYPE_INT | CTLFLAG_RD, 429 sc, 0, acpi_ibm_thermal_sysctl, "I", 430 "Thermal zones"); 431 } 432 433 /* Hook up handlerevents node */ 434 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_HANDLEREVENTS)) { 435 SYSCTL_ADD_PROC(sc->sysctl_ctx, 436 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 437 "handlerevents", CTLTYPE_STRING | CTLFLAG_RW, 438 sc, 0, acpi_ibm_handlerevents_sysctl, "I", 439 "devd(8) events handled by acpi_ibm"); 440 } 441 442 /* Handle notifies */ 443 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 444 acpi_ibm_notify, dev); 445 446 /* Hook up light to led(4) */ 447 if (sc->light_set_supported) 448 sc->led_dev = led_create_state(ibm_led, sc, "thinklight", sc->light_val); 449 450 return (0); 451} 452 453static int 454acpi_ibm_detach(device_t dev) 455{ 456 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 457 458 struct acpi_ibm_softc *sc = device_get_softc(dev); 459 460 /* Disable events and restore eventmask */ 461 ACPI_SERIAL_BEGIN(ibm); 462 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0); 463 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask); 464 ACPI_SERIAL_END(ibm); 465 466 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify); 467 468 if (sc->led_dev != NULL) 469 led_destroy(sc->led_dev); 470 471 return (0); 472} 473 474static int 475acpi_ibm_resume(device_t dev) 476{ 477 struct acpi_ibm_softc *sc = device_get_softc(dev); 478 479 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 480 481 ACPI_SERIAL_BEGIN(ibm); 482 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 483 int val; 484 485 val = acpi_ibm_sysctl_get(sc, i); 486 487 if (acpi_ibm_sysctls[i].flag_rdonly != 0) 488 continue; 489 490 acpi_ibm_sysctl_set(sc, i, val); 491 } 492 ACPI_SERIAL_END(ibm); 493 494 return (0); 495} 496 497static int 498acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val) 499{ 500 ACPI_OBJECT arg[2]; 501 ACPI_OBJECT_LIST args; 502 ACPI_STATUS status; 503 504 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 505 ACPI_SERIAL_ASSERT(ibm); 506 507 args.Count = 2; 508 args.Pointer = arg; 509 arg[0].Type = ACPI_TYPE_INTEGER; 510 arg[1].Type = ACPI_TYPE_INTEGER; 511 512 for (int i = 0; i < 32; ++i) { 513 arg[0].Integer.Value = i+1; 514 arg[1].Integer.Value = (((1 << i) & val) != 0); 515 status = AcpiEvaluateObject(sc->handle, 516 IBM_NAME_EVENTS_MASK_SET, &args, NULL); 517 518 if (ACPI_FAILURE(status)) 519 return (status); 520 } 521 522 return (0); 523} 524 525static int 526acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS) 527{ 528 struct acpi_ibm_softc *sc; 529 int arg; 530 int error = 0; 531 int function; 532 int method; 533 534 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 535 536 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 537 function = oidp->oid_arg2; 538 method = acpi_ibm_sysctls[function].method; 539 540 ACPI_SERIAL_BEGIN(ibm); 541 arg = acpi_ibm_sysctl_get(sc, method); 542 error = sysctl_handle_int(oidp, &arg, 0, req); 543 544 /* Sanity check */ 545 if (error != 0 || req->newptr == NULL) 546 goto out; 547 548 /* Update */ 549 error = acpi_ibm_sysctl_set(sc, method, arg); 550 551out: 552 ACPI_SERIAL_END(ibm); 553 return (error); 554} 555 556static int 557acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method) 558{ 559 UINT64 val_ec; 560 int val = 0, key; 561 562 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 563 ACPI_SERIAL_ASSERT(ibm); 564 565 switch (method) { 566 case ACPI_IBM_METHOD_EVENTS: 567 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val); 568 break; 569 570 case ACPI_IBM_METHOD_EVENTMASK: 571 if (sc->events_mask_supported) 572 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val); 573 break; 574 575 case ACPI_IBM_METHOD_HOTKEY: 576 /* 577 * Construct the hotkey as a bitmask as illustrated below. 578 * Note that whenever a key was pressed, the respecting bit 579 * toggles and nothing else changes. 580 * +--+--+-+-+-+-+-+-+-+-+-+-+ 581 * |11|10|9|8|7|6|5|4|3|2|1|0| 582 * +--+--+-+-+-+-+-+-+-+-+-+-+ 583 * | | | | | | | | | | | | 584 * | | | | | | | | | | | +- Home Button 585 * | | | | | | | | | | +--- Search Button 586 * | | | | | | | | | +----- Mail Button 587 * | | | | | | | | +------- Thinkpad Button 588 * | | | | | | | +--------- Zoom (Fn + Space) 589 * | | | | | | +----------- WLAN Button 590 * | | | | | +------------- Video Button 591 * | | | | +--------------- Hibernate Button 592 * | | | +----------------- Thinklight Button 593 * | | +------------------- Screen expand (Fn + F8) 594 * | +--------------------- Brightness 595 * +------------------------ Volume/Mute 596 */ 597 key = rtcin(IBM_RTC_HOTKEY1); 598 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key; 599 key = rtcin(IBM_RTC_HOTKEY2); 600 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key; 601 val |= (IBM_RTC_MASK_ZOOM & key) >> 1; 602 key = rtcin(IBM_RTC_THINKLIGHT); 603 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 604 key = rtcin(IBM_RTC_SCREENEXPAND); 605 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 606 key = rtcin(IBM_RTC_BRIGHTNESS); 607 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5; 608 key = rtcin(IBM_RTC_VOLUME); 609 val |= (IBM_RTC_MASK_VOLUME & key) << 4; 610 break; 611 612 case ACPI_IBM_METHOD_BRIGHTNESS: 613 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 614 val = val_ec & IBM_EC_MASK_BRI; 615 break; 616 617 case ACPI_IBM_METHOD_VOLUME: 618 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 619 val = val_ec & IBM_EC_MASK_VOL; 620 break; 621 622 case ACPI_IBM_METHOD_MUTE: 623 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 624 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 625 break; 626 627 case ACPI_IBM_METHOD_THINKLIGHT: 628 if (sc->light_get_supported) 629 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val); 630 else 631 val = sc->light_val; 632 break; 633 634 case ACPI_IBM_METHOD_BLUETOOTH: 635 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 636 sc->wlan_bt_flags = val; 637 val = ((val & IBM_NAME_MASK_BT) != 0); 638 break; 639 640 case ACPI_IBM_METHOD_WLAN: 641 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 642 sc->wlan_bt_flags = val; 643 val = ((val & IBM_NAME_MASK_WLAN) != 0); 644 break; 645 646 case ACPI_IBM_METHOD_FANSPEED: 647 if (sc->fan_handle) { 648 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val))) 649 val = -1; 650 } 651 else { 652 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2); 653 val = val_ec; 654 } 655 break; 656 657 case ACPI_IBM_METHOD_FANLEVEL: 658 /* 659 * The IBM_EC_FANSTATUS register works as follows: 660 * Bit 0-5 indicate the level at which the fan operates. Only 661 * values between 0 and 7 have an effect. Everything 662 * above 7 is treated the same as level 7 663 * Bit 6 overrides the fan speed limit if set to 1 664 * Bit 7 indicates at which mode the fan operates: 665 * manual (0) or automatic (1) 666 */ 667 if (!sc->fan_handle) { 668 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 669 val = val_ec & IBM_EC_MASK_FANLEVEL; 670 } 671 break; 672 673 case ACPI_IBM_METHOD_FANSTATUS: 674 if (!sc->fan_handle) { 675 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 676 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS; 677 } 678 else 679 val = -1; 680 break; 681 } 682 683 return (val); 684} 685 686static int 687acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg) 688{ 689 int val; 690 UINT64 val_ec; 691 ACPI_STATUS status; 692 693 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 694 ACPI_SERIAL_ASSERT(ibm); 695 696 switch (method) { 697 case ACPI_IBM_METHOD_EVENTS: 698 if (arg < 0 || arg > 1) 699 return (EINVAL); 700 701 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg); 702 if (ACPI_FAILURE(status)) 703 return (status); 704 if (sc->events_mask_supported) 705 return acpi_ibm_eventmask_set(sc, sc->events_availmask); 706 break; 707 708 case ACPI_IBM_METHOD_EVENTMASK: 709 if (sc->events_mask_supported) 710 return acpi_ibm_eventmask_set(sc, arg); 711 break; 712 713 case ACPI_IBM_METHOD_BRIGHTNESS: 714 return acpi_ibm_brightness_set(sc, arg); 715 break; 716 717 case ACPI_IBM_METHOD_VOLUME: 718 return acpi_ibm_volume_set(sc, arg); 719 break; 720 721 case ACPI_IBM_METHOD_MUTE: 722 return acpi_ibm_mute_set(sc, arg); 723 break; 724 725 case ACPI_IBM_METHOD_THINKLIGHT: 726 return acpi_ibm_thinklight_set(sc, arg); 727 break; 728 729 case ACPI_IBM_METHOD_BLUETOOTH: 730 return acpi_ibm_bluetooth_set(sc, arg); 731 break; 732 733 case ACPI_IBM_METHOD_FANLEVEL: 734 if (arg < 0 || arg > 7) 735 return (EINVAL); 736 737 if (!sc->fan_handle) { 738 /* Read the current fanstatus */ 739 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 740 val = val_ec & (~IBM_EC_MASK_FANLEVEL); 741 742 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1); 743 } 744 break; 745 746 case ACPI_IBM_METHOD_FANSTATUS: 747 if (arg < 0 || arg > 1) 748 return (EINVAL); 749 750 if (!sc->fan_handle) { 751 /* Read the current fanstatus */ 752 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 753 754 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, 755 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1); 756 } 757 break; 758 } 759 760 return (0); 761} 762 763static int 764acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method) 765{ 766 int dummy; 767 ACPI_OBJECT_TYPE cmos_t; 768 ACPI_HANDLE ledb_handle; 769 770 switch (method) { 771 case ACPI_IBM_METHOD_EVENTS: 772 /* Events are disabled by default */ 773 return (TRUE); 774 775 case ACPI_IBM_METHOD_EVENTMASK: 776 return (sc->events_mask_supported); 777 778 case ACPI_IBM_METHOD_HOTKEY: 779 case ACPI_IBM_METHOD_BRIGHTNESS: 780 case ACPI_IBM_METHOD_VOLUME: 781 case ACPI_IBM_METHOD_MUTE: 782 /* EC is required here, which was aready checked before */ 783 return (TRUE); 784 785 case ACPI_IBM_METHOD_THINKLIGHT: 786 sc->cmos_handle = NULL; 787 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger( 788 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val)); 789 790 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) || 791 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) || 792 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) && 793 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) && 794 cmos_t == ACPI_TYPE_METHOD) { 795 sc->light_cmd_on = 0x0c; 796 sc->light_cmd_off = 0x0d; 797 sc->cmos_handle = sc->light_handle; 798 } 799 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) { 800 sc->light_cmd_on = 1; 801 sc->light_cmd_off = 0; 802 } 803 else 804 sc->light_handle = NULL; 805 806 sc->light_set_supported = (sc->light_handle && 807 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle))); 808 809 if (sc->light_get_supported) 810 return (TRUE); 811 812 if (sc->light_set_supported) { 813 sc->light_val = 0; 814 return (TRUE); 815 } 816 817 return (FALSE); 818 819 case ACPI_IBM_METHOD_BLUETOOTH: 820 case ACPI_IBM_METHOD_WLAN: 821 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy))) 822 return (TRUE); 823 return (FALSE); 824 825 case ACPI_IBM_METHOD_FANSPEED: 826 /* 827 * Some models report the fan speed in levels from 0-7 828 * Newer models report it contiguously 829 */ 830 sc->fan_levels = 831 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) || 832 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle))); 833 return (TRUE); 834 835 case ACPI_IBM_METHOD_FANLEVEL: 836 case ACPI_IBM_METHOD_FANSTATUS: 837 /* 838 * Fan status is only supported on those models, 839 * which report fan RPM contiguously, not in levels 840 */ 841 if (sc->fan_levels) 842 return (FALSE); 843 return (TRUE); 844 845 case ACPI_IBM_METHOD_THERMAL: 846 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) { 847 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy)); 848 return (TRUE); 849 } 850 return (FALSE); 851 852 case ACPI_IBM_METHOD_HANDLEREVENTS: 853 return (TRUE); 854 } 855 return (FALSE); 856} 857 858static int 859acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS) 860{ 861 struct acpi_ibm_softc *sc; 862 int error = 0; 863 char temp_cmd[] = "TMP0"; 864 int temp[8]; 865 866 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 867 868 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 869 870 ACPI_SERIAL_BEGIN(ibm); 871 872 for (int i = 0; i < 8; ++i) { 873 temp_cmd[3] = '0' + i; 874 875 /* 876 * The TMPx methods seem to return +/- 128 or 0 877 * when the respecting sensor is not available 878 */ 879 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 880 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) 881 temp[i] = -1; 882 else if (sc->thermal_updt_supported) 883 /* Temperature is reported in tenth of Kelvin */ 884 temp[i] = (temp[i] - 2732 + 5) / 10; 885 } 886 887 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req); 888 889 ACPI_SERIAL_END(ibm); 890 return (error); 891} 892 893static int 894acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS) 895{ 896 struct acpi_ibm_softc *sc; 897 int error = 0; 898 struct sbuf sb; 899 char *cp, *ep; 900 int l, val; 901 unsigned int handler_events; 902 903 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 904 905 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 906 907 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 908 return (ENOMEM); 909 910 ACPI_SERIAL_BEGIN(ibm); 911 912 /* Get old values if this is a get request. */ 913 if (req->newptr == NULL) { 914 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++) 915 if (sc->handler_events & (1 << i)) 916 sbuf_printf(&sb, "0x%02x ", i + 1); 917 if (sbuf_len(&sb) == 0) 918 sbuf_printf(&sb, "NONE"); 919 } 920 921 sbuf_trim(&sb); 922 sbuf_finish(&sb); 923 924 /* Copy out the old values to the user. */ 925 error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb)); 926 sbuf_delete(&sb); 927 928 if (error != 0 || req->newptr == NULL) 929 goto out; 930 931 /* If the user is setting a string, parse it. */ 932 handler_events = 0; 933 cp = (char *)req->newptr; 934 while (*cp) { 935 if (isspace(*cp)) { 936 cp++; 937 continue; 938 } 939 940 ep = cp; 941 942 while (*ep && !isspace(*ep)) 943 ep++; 944 945 l = ep - cp; 946 if (l == 0) 947 break; 948 949 if (strncmp(cp, "NONE", 4) == 0) { 950 cp = ep; 951 continue; 952 } 953 954 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x')) 955 val = strtoul(cp, &ep, 16); 956 else 957 val = strtoul(cp, &ep, 10); 958 959 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) { 960 cp[l] = '\0'; 961 device_printf(sc->dev, "invalid event code: %s\n", cp); 962 error = EINVAL; 963 goto out; 964 } 965 966 handler_events |= 1 << (val - 1); 967 968 cp = ep; 969 } 970 971 sc->handler_events = handler_events; 972out: 973 ACPI_SERIAL_END(ibm); 974 return (error); 975} 976 977static int 978acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg) 979{ 980 int val, step; 981 UINT64 val_ec; 982 ACPI_OBJECT Arg; 983 ACPI_OBJECT_LIST Args; 984 ACPI_STATUS status; 985 986 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 987 ACPI_SERIAL_ASSERT(ibm); 988 989 if (arg < 0 || arg > 7) 990 return (EINVAL); 991 992 /* Read the current brightness */ 993 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 994 if (ACPI_FAILURE(status)) 995 return (status); 996 997 if (sc->cmos_handle) { 998 val = val_ec & IBM_EC_MASK_BRI; 999 1000 Args.Count = 1; 1001 Args.Pointer = &Arg; 1002 Arg.Type = ACPI_TYPE_INTEGER; 1003 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : 1004 IBM_CMOS_BRIGHTNESS_DOWN; 1005 1006 step = (arg > val) ? 1 : -1; 1007 for (int i = val; i != arg; i += step) { 1008 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1009 &Args, NULL); 1010 if (ACPI_FAILURE(status)) { 1011 /* Record the last value */ 1012 if (i != val) { 1013 ACPI_EC_WRITE(sc->ec_dev, 1014 IBM_EC_BRIGHTNESS, i - step, 1); 1015 } 1016 return (status); 1017 } 1018 } 1019 } 1020 1021 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1); 1022} 1023 1024static int 1025acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg) 1026{ 1027 int val; 1028 1029 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1030 ACPI_SERIAL_ASSERT(ibm); 1031 1032 if (arg < 0 || arg > 1) 1033 return (EINVAL); 1034 1035 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : 1036 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT); 1037 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val); 1038} 1039 1040static int 1041acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg) 1042{ 1043 ACPI_OBJECT Arg; 1044 ACPI_OBJECT_LIST Args; 1045 ACPI_STATUS status; 1046 1047 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1048 ACPI_SERIAL_ASSERT(ibm); 1049 1050 if (arg < 0 || arg > 1) 1051 return (EINVAL); 1052 1053 if (sc->light_set_supported) { 1054 Args.Count = 1; 1055 Args.Pointer = &Arg; 1056 Arg.Type = ACPI_TYPE_INTEGER; 1057 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off; 1058 1059 status = AcpiEvaluateObject(sc->light_handle, NULL, 1060 &Args, NULL); 1061 if (ACPI_SUCCESS(status)) 1062 sc->light_val = arg; 1063 return (status); 1064 } 1065 1066 return (0); 1067} 1068 1069static int 1070acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg) 1071{ 1072 int val, step; 1073 UINT64 val_ec; 1074 ACPI_OBJECT Arg; 1075 ACPI_OBJECT_LIST Args; 1076 ACPI_STATUS status; 1077 1078 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1079 ACPI_SERIAL_ASSERT(ibm); 1080 1081 if (arg < 0 || arg > 14) 1082 return (EINVAL); 1083 1084 /* Read the current volume */ 1085 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1086 if (ACPI_FAILURE(status)) 1087 return (status); 1088 1089 if (sc->cmos_handle) { 1090 val = val_ec & IBM_EC_MASK_VOL; 1091 1092 Args.Count = 1; 1093 Args.Pointer = &Arg; 1094 Arg.Type = ACPI_TYPE_INTEGER; 1095 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : 1096 IBM_CMOS_VOLUME_DOWN; 1097 1098 step = (arg > val) ? 1 : -1; 1099 for (int i = val; i != arg; i += step) { 1100 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1101 &Args, NULL); 1102 if (ACPI_FAILURE(status)) { 1103 /* Record the last value */ 1104 if (i != val) { 1105 val_ec = i - step + 1106 (val_ec & (~IBM_EC_MASK_VOL)); 1107 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, 1108 val_ec, 1); 1109 } 1110 return (status); 1111 } 1112 } 1113 } 1114 1115 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL)); 1116 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1117} 1118 1119static int 1120acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg) 1121{ 1122 UINT64 val_ec; 1123 ACPI_OBJECT Arg; 1124 ACPI_OBJECT_LIST Args; 1125 ACPI_STATUS status; 1126 1127 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1128 ACPI_SERIAL_ASSERT(ibm); 1129 1130 if (arg < 0 || arg > 1) 1131 return (EINVAL); 1132 1133 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1134 if (ACPI_FAILURE(status)) 1135 return (status); 1136 1137 if (sc->cmos_handle) { 1138 Args.Count = 1; 1139 Args.Pointer = &Arg; 1140 Arg.Type = ACPI_TYPE_INTEGER; 1141 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE; 1142 1143 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 1144 if (ACPI_FAILURE(status)) 1145 return (status); 1146 } 1147 1148 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE : 1149 val_ec & (~IBM_EC_MASK_MUTE); 1150 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1151} 1152 1153static void 1154acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg) 1155{ 1156 int val; 1157 UINT64 val_ec; 1158 ACPI_STATUS status; 1159 1160 ACPI_SERIAL_BEGIN(ibm); 1161 switch (arg) { 1162 case IBM_EVENT_SUSPEND_TO_RAM: 1163 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 1164 break; 1165 1166 case IBM_EVENT_BLUETOOTH: 1167 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0)); 1168 break; 1169 1170 case IBM_EVENT_BRIGHTNESS_UP: 1171 case IBM_EVENT_BRIGHTNESS_DOWN: 1172 /* Read the current brightness */ 1173 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, 1174 &val_ec, 1); 1175 if (ACPI_FAILURE(status)) 1176 return; 1177 1178 val = val_ec & IBM_EC_MASK_BRI; 1179 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1; 1180 acpi_ibm_brightness_set(sc, val); 1181 break; 1182 1183 case IBM_EVENT_THINKLIGHT: 1184 acpi_ibm_thinklight_set(sc, (sc->light_val == 0)); 1185 break; 1186 1187 case IBM_EVENT_VOLUME_UP: 1188 case IBM_EVENT_VOLUME_DOWN: 1189 /* Read the current volume */ 1190 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1191 if (ACPI_FAILURE(status)) 1192 return; 1193 1194 val = val_ec & IBM_EC_MASK_VOL; 1195 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1; 1196 acpi_ibm_volume_set(sc, val); 1197 break; 1198 1199 case IBM_EVENT_MUTE: 1200 /* Read the current value */ 1201 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1202 if (ACPI_FAILURE(status)) 1203 return; 1204 1205 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 1206 acpi_ibm_mute_set(sc, (val == 0)); 1207 break; 1208 1209 default: 1210 break; 1211 } 1212 ACPI_SERIAL_END(ibm); 1213} 1214 1215static void 1216acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context) 1217{ 1218 int event, arg, type; 1219 device_t dev = context; 1220 struct acpi_ibm_softc *sc = device_get_softc(dev); 1221 1222 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); 1223 1224 if (notify != 0x80) 1225 device_printf(dev, "Unknown notify\n"); 1226 1227 for (;;) { 1228 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event); 1229 1230 if (event == 0) 1231 break; 1232 1233 1234 type = (event >> 12) & 0xf; 1235 arg = event & 0xfff; 1236 switch (type) { 1237 case 1: 1238 if (!(sc->events_availmask & (1 << (arg - 1)))) { 1239 device_printf(dev, "Unknown key %d\n", arg); 1240 break; 1241 } 1242 1243 /* Execute event handler */ 1244 if (sc->handler_events & (1 << (arg - 1))) 1245 acpi_ibm_eventhandler(sc, (arg & 0xff)); 1246 1247 /* Notify devd(8) */ 1248 acpi_UserNotify("IBM", h, (arg & 0xff)); 1249 break; 1250 default: 1251 break; 1252 } 1253 } 1254} 1255