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/11/sys/dev/acpi_support/acpi_ibm.c 347636 2019-05-16 00:51:30Z gonzo $"); 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/systm.h> 43#include <sys/kernel.h> 44#include <sys/bus.h> 45#include <machine/cpufunc.h> 46 47#include <contrib/dev/acpica/include/acpi.h> 48#include <contrib/dev/acpica/include/accommon.h> 49 50#include "acpi_if.h" 51#include <sys/module.h> 52#include <dev/acpica/acpivar.h> 53#include <dev/led/led.h> 54#include <sys/power.h> 55#include <sys/sbuf.h> 56#include <sys/sysctl.h> 57#include <isa/rtc.h> 58 59#define _COMPONENT ACPI_OEM 60ACPI_MODULE_NAME("IBM") 61 62/* Internal methods */ 63#define ACPI_IBM_METHOD_EVENTS 1 64#define ACPI_IBM_METHOD_EVENTMASK 2 65#define ACPI_IBM_METHOD_HOTKEY 3 66#define ACPI_IBM_METHOD_BRIGHTNESS 4 67#define ACPI_IBM_METHOD_VOLUME 5 68#define ACPI_IBM_METHOD_MUTE 6 69#define ACPI_IBM_METHOD_THINKLIGHT 7 70#define ACPI_IBM_METHOD_BLUETOOTH 8 71#define ACPI_IBM_METHOD_WLAN 9 72#define ACPI_IBM_METHOD_FANSPEED 10 73#define ACPI_IBM_METHOD_FANLEVEL 11 74#define ACPI_IBM_METHOD_FANSTATUS 12 75#define ACPI_IBM_METHOD_THERMAL 13 76#define ACPI_IBM_METHOD_HANDLEREVENTS 14 77 78/* Hotkeys/Buttons */ 79#define IBM_RTC_HOTKEY1 0x64 80#define IBM_RTC_MASK_HOME (1 << 0) 81#define IBM_RTC_MASK_SEARCH (1 << 1) 82#define IBM_RTC_MASK_MAIL (1 << 2) 83#define IBM_RTC_MASK_WLAN (1 << 5) 84#define IBM_RTC_HOTKEY2 0x65 85#define IBM_RTC_MASK_THINKPAD (1 << 3) 86#define IBM_RTC_MASK_ZOOM (1 << 5) 87#define IBM_RTC_MASK_VIDEO (1 << 6) 88#define IBM_RTC_MASK_HIBERNATE (1 << 7) 89#define IBM_RTC_THINKLIGHT 0x66 90#define IBM_RTC_MASK_THINKLIGHT (1 << 4) 91#define IBM_RTC_SCREENEXPAND 0x67 92#define IBM_RTC_MASK_SCREENEXPAND (1 << 5) 93#define IBM_RTC_BRIGHTNESS 0x6c 94#define IBM_RTC_MASK_BRIGHTNESS (1 << 5) 95#define IBM_RTC_VOLUME 0x6e 96#define IBM_RTC_MASK_VOLUME (1 << 7) 97 98/* Embedded Controller registers */ 99#define IBM_EC_BRIGHTNESS 0x31 100#define IBM_EC_MASK_BRI 0x7 101#define IBM_EC_VOLUME 0x30 102#define IBM_EC_MASK_VOL 0xf 103#define IBM_EC_MASK_MUTE (1 << 6) 104#define IBM_EC_FANSTATUS 0x2F 105#define IBM_EC_MASK_FANLEVEL 0x3f 106#define IBM_EC_MASK_FANDISENGAGED (1 << 6) 107#define IBM_EC_MASK_FANSTATUS (1 << 7) 108#define IBM_EC_FANSPEED 0x84 109 110/* CMOS Commands */ 111#define IBM_CMOS_VOLUME_DOWN 0 112#define IBM_CMOS_VOLUME_UP 1 113#define IBM_CMOS_VOLUME_MUTE 2 114#define IBM_CMOS_BRIGHTNESS_UP 4 115#define IBM_CMOS_BRIGHTNESS_DOWN 5 116 117/* ACPI methods */ 118#define IBM_NAME_KEYLIGHT "KBLT" 119#define IBM_NAME_WLAN_BT_GET "GBDC" 120#define IBM_NAME_WLAN_BT_SET "SBDC" 121#define IBM_NAME_MASK_BT (1 << 1) 122#define IBM_NAME_MASK_WLAN (1 << 2) 123#define IBM_NAME_THERMAL_GET "TMP7" 124#define IBM_NAME_THERMAL_UPDT "UPDT" 125 126#define IBM_NAME_EVENTS_STATUS_GET "DHKC" 127#define IBM_NAME_EVENTS_MASK_GET "DHKN" 128#define IBM_NAME_EVENTS_STATUS_SET "MHKC" 129#define IBM_NAME_EVENTS_MASK_SET "MHKM" 130#define IBM_NAME_EVENTS_GET "MHKP" 131#define IBM_NAME_EVENTS_AVAILMASK "MHKA" 132 133/* Event Code */ 134#define IBM_EVENT_LCD_BACKLIGHT 0x03 135#define IBM_EVENT_SUSPEND_TO_RAM 0x04 136#define IBM_EVENT_BLUETOOTH 0x05 137#define IBM_EVENT_SCREEN_EXPAND 0x07 138#define IBM_EVENT_SUSPEND_TO_DISK 0x0c 139#define IBM_EVENT_BRIGHTNESS_UP 0x10 140#define IBM_EVENT_BRIGHTNESS_DOWN 0x11 141#define IBM_EVENT_THINKLIGHT 0x12 142#define IBM_EVENT_ZOOM 0x14 143#define IBM_EVENT_VOLUME_UP 0x15 144#define IBM_EVENT_VOLUME_DOWN 0x16 145#define IBM_EVENT_MUTE 0x17 146#define IBM_EVENT_ACCESS_IBM_BUTTON 0x18 147 148#define ABS(x) (((x) < 0)? -(x) : (x)) 149 150struct acpi_ibm_softc { 151 device_t dev; 152 ACPI_HANDLE handle; 153 154 /* Embedded controller */ 155 device_t ec_dev; 156 ACPI_HANDLE ec_handle; 157 158 /* CMOS */ 159 ACPI_HANDLE cmos_handle; 160 161 /* Fan status */ 162 ACPI_HANDLE fan_handle; 163 int fan_levels; 164 165 /* Keylight commands and states */ 166 ACPI_HANDLE light_handle; 167 int light_cmd_on; 168 int light_cmd_off; 169 int light_val; 170 int light_get_supported; 171 int light_set_supported; 172 173 /* led(4) interface */ 174 struct cdev *led_dev; 175 int led_busy; 176 int led_state; 177 178 int wlan_bt_flags; 179 int thermal_updt_supported; 180 181 unsigned int events_availmask; 182 unsigned int events_initialmask; 183 int events_mask_supported; 184 int events_enable; 185 186 unsigned int handler_events; 187 188 struct sysctl_ctx_list *sysctl_ctx; 189 struct sysctl_oid *sysctl_tree; 190}; 191 192static struct { 193 char *name; 194 int method; 195 char *description; 196 int flag_rdonly; 197} acpi_ibm_sysctls[] = { 198 { 199 .name = "events", 200 .method = ACPI_IBM_METHOD_EVENTS, 201 .description = "ACPI events enable", 202 }, 203 { 204 .name = "eventmask", 205 .method = ACPI_IBM_METHOD_EVENTMASK, 206 .description = "ACPI eventmask", 207 }, 208 { 209 .name = "hotkey", 210 .method = ACPI_IBM_METHOD_HOTKEY, 211 .description = "Key Status", 212 .flag_rdonly = 1 213 }, 214 { 215 .name = "lcd_brightness", 216 .method = ACPI_IBM_METHOD_BRIGHTNESS, 217 .description = "LCD Brightness", 218 }, 219 { 220 .name = "volume", 221 .method = ACPI_IBM_METHOD_VOLUME, 222 .description = "Volume", 223 }, 224 { 225 .name = "mute", 226 .method = ACPI_IBM_METHOD_MUTE, 227 .description = "Mute", 228 }, 229 { 230 .name = "thinklight", 231 .method = ACPI_IBM_METHOD_THINKLIGHT, 232 .description = "Thinklight enable", 233 }, 234 { 235 .name = "bluetooth", 236 .method = ACPI_IBM_METHOD_BLUETOOTH, 237 .description = "Bluetooth enable", 238 }, 239 { 240 .name = "wlan", 241 .method = ACPI_IBM_METHOD_WLAN, 242 .description = "WLAN enable", 243 .flag_rdonly = 1 244 }, 245 { 246 .name = "fan_speed", 247 .method = ACPI_IBM_METHOD_FANSPEED, 248 .description = "Fan speed", 249 .flag_rdonly = 1 250 }, 251 { 252 .name = "fan_level", 253 .method = ACPI_IBM_METHOD_FANLEVEL, 254 .description = "Fan level", 255 }, 256 { 257 .name = "fan", 258 .method = ACPI_IBM_METHOD_FANSTATUS, 259 .description = "Fan enable", 260 }, 261 262 { NULL, 0, NULL, 0 } 263}; 264 265/* 266 * Per-model default list of event mask. 267 */ 268#define ACPI_IBM_HKEY_RFKILL_MASK (1 << 4) 269#define ACPI_IBM_HKEY_DSWITCH_MASK (1 << 6) 270#define ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK (1 << 15) 271#define ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK (1 << 16) 272#define ACPI_IBM_HKEY_SEARCH_MASK (1 << 18) 273#define ACPI_IBM_HKEY_MICMUTE_MASK (1 << 26) 274#define ACPI_IBM_HKEY_SETTINGS_MASK (1 << 28) 275#define ACPI_IBM_HKEY_VIEWOPEN_MASK (1 << 30) 276#define ACPI_IBM_HKEY_VIEWALL_MASK (1 << 31) 277 278struct acpi_ibm_models { 279 const char *maker; 280 const char *product; 281 uint32_t eventmask; 282} acpi_ibm_models[] = { 283 { "LENOVO", "20BSCTO1WW", 284 ACPI_IBM_HKEY_RFKILL_MASK | 285 ACPI_IBM_HKEY_DSWITCH_MASK | 286 ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK | 287 ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK | 288 ACPI_IBM_HKEY_SEARCH_MASK | 289 ACPI_IBM_HKEY_MICMUTE_MASK | 290 ACPI_IBM_HKEY_SETTINGS_MASK | 291 ACPI_IBM_HKEY_VIEWOPEN_MASK | 292 ACPI_IBM_HKEY_VIEWALL_MASK 293 } 294}; 295 296ACPI_SERIAL_DECL(ibm, "ACPI IBM extras"); 297 298static int acpi_ibm_probe(device_t dev); 299static int acpi_ibm_attach(device_t dev); 300static int acpi_ibm_detach(device_t dev); 301static int acpi_ibm_resume(device_t dev); 302 303static void ibm_led(void *softc, int onoff); 304static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused); 305 306static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS); 307static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method); 308static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method); 309static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val); 310 311static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val); 312static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS); 313static int acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS); 314static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context); 315 316static int acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg); 317static int acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg); 318static int acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg); 319static int acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg); 320static int acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg); 321 322static device_method_t acpi_ibm_methods[] = { 323 /* Device interface */ 324 DEVMETHOD(device_probe, acpi_ibm_probe), 325 DEVMETHOD(device_attach, acpi_ibm_attach), 326 DEVMETHOD(device_detach, acpi_ibm_detach), 327 DEVMETHOD(device_resume, acpi_ibm_resume), 328 329 DEVMETHOD_END 330}; 331 332static driver_t acpi_ibm_driver = { 333 "acpi_ibm", 334 acpi_ibm_methods, 335 sizeof(struct acpi_ibm_softc), 336}; 337 338static devclass_t acpi_ibm_devclass; 339 340DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass, 341 0, 0); 342MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1); 343static char *ibm_ids[] = {"IBM0068", "LEN0068", "LEN0268", NULL}; 344 345static void 346ibm_led(void *softc, int onoff) 347{ 348 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc; 349 350 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 351 352 if (sc->led_busy) 353 return; 354 355 sc->led_busy = 1; 356 sc->led_state = onoff; 357 358 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc); 359} 360 361static void 362ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused) 363{ 364 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 365 366 ACPI_SERIAL_BEGIN(ibm); 367 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state); 368 ACPI_SERIAL_END(ibm); 369 370 sc->led_busy = 0; 371} 372 373static int 374acpi_ibm_probe(device_t dev) 375{ 376 if (acpi_disabled("ibm") || 377 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL || 378 device_get_unit(dev) != 0) 379 return (ENXIO); 380 381 device_set_desc(dev, "IBM ThinkPad ACPI Extras"); 382 383 return (0); 384} 385 386static int 387acpi_ibm_attach(device_t dev) 388{ 389 int i; 390 int hkey; 391 struct acpi_ibm_softc *sc; 392 char *maker, *product; 393 ACPI_OBJECT_LIST input; 394 ACPI_OBJECT params[1]; 395 ACPI_OBJECT out_obj; 396 ACPI_BUFFER result; 397 devclass_t ec_devclass; 398 399 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 400 401 sc = device_get_softc(dev); 402 sc->dev = dev; 403 sc->handle = acpi_get_handle(dev); 404 405 /* Look for the first embedded controller */ 406 if (!(ec_devclass = devclass_find ("acpi_ec"))) { 407 if (bootverbose) 408 device_printf(dev, "Couldn't find acpi_ec devclass\n"); 409 return (EINVAL); 410 } 411 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) { 412 if (bootverbose) 413 device_printf(dev, "Couldn't find acpi_ec device\n"); 414 return (EINVAL); 415 } 416 sc->ec_handle = acpi_get_handle(sc->ec_dev); 417 418 /* Get the sysctl tree */ 419 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 420 sc->sysctl_tree = device_get_sysctl_tree(dev); 421 422 /* Look for event mask and hook up the nodes */ 423 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle, 424 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask)); 425 426 if (sc->events_mask_supported) { 427 SYSCTL_ADD_UINT(sc->sysctl_ctx, 428 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 429 "initialmask", CTLFLAG_RD, 430 &sc->events_initialmask, 0, "Initial eventmask"); 431 432 if (ACPI_SUCCESS (acpi_GetInteger(sc->handle, "MHKV", &hkey))) { 433 device_printf(dev, "Firmware version is 0x%X\n", hkey); 434 switch(hkey >> 8) 435 { 436 case 1: 437 /* The availmask is the bitmask of supported events */ 438 if (ACPI_FAILURE(acpi_GetInteger(sc->handle, 439 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask))) 440 sc->events_availmask = 0xffffffff; 441 break; 442 443 case 2: 444 result.Length = sizeof(out_obj); 445 result.Pointer = &out_obj; 446 params[0].Type = ACPI_TYPE_INTEGER; 447 params[0].Integer.Value = 1; 448 input.Pointer = params; 449 input.Count = 1; 450 451 sc->events_availmask = 0xffffffff; 452 453 if (ACPI_SUCCESS(AcpiEvaluateObject (sc->handle, 454 IBM_NAME_EVENTS_AVAILMASK, &input, &result))) 455 sc->events_availmask = out_obj.Integer.Value; 456 break; 457 default: 458 device_printf(dev, "Unknown firmware version 0x%x\n", hkey); 459 break; 460 } 461 } else 462 sc->events_availmask = 0xffffffff; 463 464 SYSCTL_ADD_UINT(sc->sysctl_ctx, 465 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 466 "availmask", CTLFLAG_RD, 467 &sc->events_availmask, 0, "Mask of supported events"); 468 } 469 470 /* Hook up proc nodes */ 471 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 472 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method)) 473 continue; 474 475 if (acpi_ibm_sysctls[i].flag_rdonly != 0) { 476 SYSCTL_ADD_PROC(sc->sysctl_ctx, 477 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 478 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RD, 479 sc, i, acpi_ibm_sysctl, "I", 480 acpi_ibm_sysctls[i].description); 481 } else { 482 SYSCTL_ADD_PROC(sc->sysctl_ctx, 483 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 484 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RW, 485 sc, i, acpi_ibm_sysctl, "I", 486 acpi_ibm_sysctls[i].description); 487 } 488 } 489 490 /* Hook up thermal node */ 491 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) { 492 SYSCTL_ADD_PROC(sc->sysctl_ctx, 493 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 494 "thermal", CTLTYPE_INT | CTLFLAG_RD, 495 sc, 0, acpi_ibm_thermal_sysctl, "I", 496 "Thermal zones"); 497 } 498 499 /* Hook up handlerevents node */ 500 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_HANDLEREVENTS)) { 501 SYSCTL_ADD_PROC(sc->sysctl_ctx, 502 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 503 "handlerevents", CTLTYPE_STRING | CTLFLAG_RW, 504 sc, 0, acpi_ibm_handlerevents_sysctl, "I", 505 "devd(8) events handled by acpi_ibm"); 506 } 507 508 /* Handle notifies */ 509 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 510 acpi_ibm_notify, dev); 511 512 /* Hook up light to led(4) */ 513 if (sc->light_set_supported) 514 sc->led_dev = led_create_state(ibm_led, sc, "thinklight", 515 (sc->light_val ? 1 : 0)); 516 517 /* Enable per-model events. */ 518 maker = kern_getenv("smbios.system.maker"); 519 product = kern_getenv("smbios.system.product"); 520 if (maker == NULL || product == NULL) 521 goto nosmbios; 522 523 for (i = 0; i < nitems(acpi_ibm_models); i++) { 524 if (strcmp(maker, acpi_ibm_models[i].maker) == 0 && 525 strcmp(product, acpi_ibm_models[i].product) == 0) { 526 ACPI_SERIAL_BEGIN(ibm); 527 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, 528 acpi_ibm_models[i].eventmask); 529 ACPI_SERIAL_END(ibm); 530 } 531 } 532 533nosmbios: 534 freeenv(maker); 535 freeenv(product); 536 537 /* Enable events by default. */ 538 ACPI_SERIAL_BEGIN(ibm); 539 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 1); 540 ACPI_SERIAL_END(ibm); 541 542 543 return (0); 544} 545 546static int 547acpi_ibm_detach(device_t dev) 548{ 549 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 550 551 struct acpi_ibm_softc *sc = device_get_softc(dev); 552 553 /* Disable events and restore eventmask */ 554 ACPI_SERIAL_BEGIN(ibm); 555 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0); 556 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask); 557 ACPI_SERIAL_END(ibm); 558 559 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify); 560 561 if (sc->led_dev != NULL) 562 led_destroy(sc->led_dev); 563 564 return (0); 565} 566 567static int 568acpi_ibm_resume(device_t dev) 569{ 570 struct acpi_ibm_softc *sc = device_get_softc(dev); 571 572 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 573 574 ACPI_SERIAL_BEGIN(ibm); 575 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 576 int val; 577 578 val = acpi_ibm_sysctl_get(sc, i); 579 580 if (acpi_ibm_sysctls[i].flag_rdonly != 0) 581 continue; 582 583 acpi_ibm_sysctl_set(sc, i, val); 584 } 585 ACPI_SERIAL_END(ibm); 586 587 return (0); 588} 589 590static int 591acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val) 592{ 593 ACPI_OBJECT arg[2]; 594 ACPI_OBJECT_LIST args; 595 ACPI_STATUS status; 596 597 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 598 ACPI_SERIAL_ASSERT(ibm); 599 600 args.Count = 2; 601 args.Pointer = arg; 602 arg[0].Type = ACPI_TYPE_INTEGER; 603 arg[1].Type = ACPI_TYPE_INTEGER; 604 605 for (int i = 0; i < 32; ++i) { 606 arg[0].Integer.Value = i+1; 607 arg[1].Integer.Value = (((1 << i) & val) != 0); 608 status = AcpiEvaluateObject(sc->handle, 609 IBM_NAME_EVENTS_MASK_SET, &args, NULL); 610 611 if (ACPI_FAILURE(status)) 612 return (status); 613 } 614 615 return (0); 616} 617 618static int 619acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS) 620{ 621 struct acpi_ibm_softc *sc; 622 int arg; 623 int error = 0; 624 int function; 625 int method; 626 627 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 628 629 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 630 function = oidp->oid_arg2; 631 method = acpi_ibm_sysctls[function].method; 632 633 ACPI_SERIAL_BEGIN(ibm); 634 arg = acpi_ibm_sysctl_get(sc, method); 635 error = sysctl_handle_int(oidp, &arg, 0, req); 636 637 /* Sanity check */ 638 if (error != 0 || req->newptr == NULL) 639 goto out; 640 641 /* Update */ 642 error = acpi_ibm_sysctl_set(sc, method, arg); 643 644out: 645 ACPI_SERIAL_END(ibm); 646 return (error); 647} 648 649static int 650acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method) 651{ 652 UINT64 val_ec; 653 int val = 0, key; 654 655 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 656 ACPI_SERIAL_ASSERT(ibm); 657 658 switch (method) { 659 case ACPI_IBM_METHOD_EVENTS: 660 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val); 661 break; 662 663 case ACPI_IBM_METHOD_EVENTMASK: 664 if (sc->events_mask_supported) 665 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val); 666 break; 667 668 case ACPI_IBM_METHOD_HOTKEY: 669 /* 670 * Construct the hotkey as a bitmask as illustrated below. 671 * Note that whenever a key was pressed, the respecting bit 672 * toggles and nothing else changes. 673 * +--+--+-+-+-+-+-+-+-+-+-+-+ 674 * |11|10|9|8|7|6|5|4|3|2|1|0| 675 * +--+--+-+-+-+-+-+-+-+-+-+-+ 676 * | | | | | | | | | | | | 677 * | | | | | | | | | | | +- Home Button 678 * | | | | | | | | | | +--- Search Button 679 * | | | | | | | | | +----- Mail Button 680 * | | | | | | | | +------- Thinkpad Button 681 * | | | | | | | +--------- Zoom (Fn + Space) 682 * | | | | | | +----------- WLAN Button 683 * | | | | | +------------- Video Button 684 * | | | | +--------------- Hibernate Button 685 * | | | +----------------- Thinklight Button 686 * | | +------------------- Screen expand (Fn + F8) 687 * | +--------------------- Brightness 688 * +------------------------ Volume/Mute 689 */ 690 key = rtcin(IBM_RTC_HOTKEY1); 691 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key; 692 key = rtcin(IBM_RTC_HOTKEY2); 693 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key; 694 val |= (IBM_RTC_MASK_ZOOM & key) >> 1; 695 key = rtcin(IBM_RTC_THINKLIGHT); 696 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 697 key = rtcin(IBM_RTC_SCREENEXPAND); 698 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 699 key = rtcin(IBM_RTC_BRIGHTNESS); 700 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5; 701 key = rtcin(IBM_RTC_VOLUME); 702 val |= (IBM_RTC_MASK_VOLUME & key) << 4; 703 break; 704 705 case ACPI_IBM_METHOD_BRIGHTNESS: 706 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 707 val = val_ec & IBM_EC_MASK_BRI; 708 break; 709 710 case ACPI_IBM_METHOD_VOLUME: 711 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 712 val = val_ec & IBM_EC_MASK_VOL; 713 break; 714 715 case ACPI_IBM_METHOD_MUTE: 716 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 717 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 718 break; 719 720 case ACPI_IBM_METHOD_THINKLIGHT: 721 if (sc->light_get_supported) 722 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val); 723 else 724 val = sc->light_val; 725 break; 726 727 case ACPI_IBM_METHOD_BLUETOOTH: 728 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 729 sc->wlan_bt_flags = val; 730 val = ((val & IBM_NAME_MASK_BT) != 0); 731 break; 732 733 case ACPI_IBM_METHOD_WLAN: 734 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 735 sc->wlan_bt_flags = val; 736 val = ((val & IBM_NAME_MASK_WLAN) != 0); 737 break; 738 739 case ACPI_IBM_METHOD_FANSPEED: 740 if (sc->fan_handle) { 741 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val))) 742 val = -1; 743 } 744 else { 745 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2); 746 val = val_ec; 747 } 748 break; 749 750 case ACPI_IBM_METHOD_FANLEVEL: 751 /* 752 * The IBM_EC_FANSTATUS register works as follows: 753 * Bit 0-5 indicate the level at which the fan operates. Only 754 * values between 0 and 7 have an effect. Everything 755 * above 7 is treated the same as level 7 756 * Bit 6 overrides the fan speed limit if set to 1 757 * Bit 7 indicates at which mode the fan operates: 758 * manual (0) or automatic (1) 759 */ 760 if (!sc->fan_handle) { 761 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 762 val = val_ec & IBM_EC_MASK_FANLEVEL; 763 } 764 break; 765 766 case ACPI_IBM_METHOD_FANSTATUS: 767 if (!sc->fan_handle) { 768 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 769 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS; 770 } 771 else 772 val = -1; 773 break; 774 } 775 776 return (val); 777} 778 779static int 780acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg) 781{ 782 int val; 783 UINT64 val_ec; 784 ACPI_STATUS status; 785 786 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 787 ACPI_SERIAL_ASSERT(ibm); 788 789 switch (method) { 790 case ACPI_IBM_METHOD_EVENTS: 791 if (arg < 0 || arg > 1) 792 return (EINVAL); 793 794 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg); 795 if (ACPI_FAILURE(status)) 796 return (status); 797 if (sc->events_mask_supported) 798 return acpi_ibm_eventmask_set(sc, sc->events_availmask); 799 break; 800 801 case ACPI_IBM_METHOD_EVENTMASK: 802 if (sc->events_mask_supported) 803 return acpi_ibm_eventmask_set(sc, arg); 804 break; 805 806 case ACPI_IBM_METHOD_BRIGHTNESS: 807 return acpi_ibm_brightness_set(sc, arg); 808 break; 809 810 case ACPI_IBM_METHOD_VOLUME: 811 return acpi_ibm_volume_set(sc, arg); 812 break; 813 814 case ACPI_IBM_METHOD_MUTE: 815 return acpi_ibm_mute_set(sc, arg); 816 break; 817 818 case ACPI_IBM_METHOD_THINKLIGHT: 819 return acpi_ibm_thinklight_set(sc, arg); 820 break; 821 822 case ACPI_IBM_METHOD_BLUETOOTH: 823 return acpi_ibm_bluetooth_set(sc, arg); 824 break; 825 826 case ACPI_IBM_METHOD_FANLEVEL: 827 if (arg < 0 || arg > 7) 828 return (EINVAL); 829 830 if (!sc->fan_handle) { 831 /* Read the current fanstatus */ 832 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 833 val = val_ec & (~IBM_EC_MASK_FANLEVEL); 834 835 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1); 836 } 837 break; 838 839 case ACPI_IBM_METHOD_FANSTATUS: 840 if (arg < 0 || arg > 1) 841 return (EINVAL); 842 843 if (!sc->fan_handle) { 844 /* Read the current fanstatus */ 845 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 846 847 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, 848 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1); 849 } 850 break; 851 } 852 853 return (0); 854} 855 856static int 857acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method) 858{ 859 int dummy; 860 ACPI_OBJECT_TYPE cmos_t; 861 ACPI_HANDLE ledb_handle; 862 863 switch (method) { 864 case ACPI_IBM_METHOD_EVENTS: 865 return (TRUE); 866 867 case ACPI_IBM_METHOD_EVENTMASK: 868 return (sc->events_mask_supported); 869 870 case ACPI_IBM_METHOD_HOTKEY: 871 case ACPI_IBM_METHOD_BRIGHTNESS: 872 case ACPI_IBM_METHOD_VOLUME: 873 case ACPI_IBM_METHOD_MUTE: 874 /* EC is required here, which was already checked before */ 875 return (TRUE); 876 877 case ACPI_IBM_METHOD_THINKLIGHT: 878 sc->cmos_handle = NULL; 879 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger( 880 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val)); 881 882 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) || 883 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) || 884 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) && 885 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) && 886 cmos_t == ACPI_TYPE_METHOD) { 887 sc->light_cmd_on = 0x0c; 888 sc->light_cmd_off = 0x0d; 889 sc->cmos_handle = sc->light_handle; 890 } 891 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) { 892 sc->light_cmd_on = 1; 893 sc->light_cmd_off = 0; 894 } 895 else 896 sc->light_handle = NULL; 897 898 sc->light_set_supported = (sc->light_handle && 899 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle))); 900 901 if (sc->light_get_supported) 902 return (TRUE); 903 904 if (sc->light_set_supported) { 905 sc->light_val = 0; 906 return (TRUE); 907 } 908 909 return (FALSE); 910 911 case ACPI_IBM_METHOD_BLUETOOTH: 912 case ACPI_IBM_METHOD_WLAN: 913 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy))) 914 return (TRUE); 915 return (FALSE); 916 917 case ACPI_IBM_METHOD_FANSPEED: 918 /* 919 * Some models report the fan speed in levels from 0-7 920 * Newer models report it contiguously 921 */ 922 sc->fan_levels = 923 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) || 924 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle))); 925 return (TRUE); 926 927 case ACPI_IBM_METHOD_FANLEVEL: 928 case ACPI_IBM_METHOD_FANSTATUS: 929 /* 930 * Fan status is only supported on those models, 931 * which report fan RPM contiguously, not in levels 932 */ 933 if (sc->fan_levels) 934 return (FALSE); 935 return (TRUE); 936 937 case ACPI_IBM_METHOD_THERMAL: 938 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) { 939 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy)); 940 return (TRUE); 941 } 942 return (FALSE); 943 944 case ACPI_IBM_METHOD_HANDLEREVENTS: 945 return (TRUE); 946 } 947 return (FALSE); 948} 949 950static int 951acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS) 952{ 953 struct acpi_ibm_softc *sc; 954 int error = 0; 955 char temp_cmd[] = "TMP0"; 956 int temp[8]; 957 958 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 959 960 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 961 962 ACPI_SERIAL_BEGIN(ibm); 963 964 for (int i = 0; i < 8; ++i) { 965 temp_cmd[3] = '0' + i; 966 967 /* 968 * The TMPx methods seem to return +/- 128 or 0 969 * when the respecting sensor is not available 970 */ 971 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 972 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) 973 temp[i] = -1; 974 else if (sc->thermal_updt_supported) 975 /* Temperature is reported in tenth of Kelvin */ 976 temp[i] = (temp[i] - 2731 + 5) / 10; 977 } 978 979 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req); 980 981 ACPI_SERIAL_END(ibm); 982 return (error); 983} 984 985static int 986acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS) 987{ 988 struct acpi_ibm_softc *sc; 989 int error = 0; 990 struct sbuf sb; 991 char *cp, *ep; 992 int l, val; 993 unsigned int handler_events; 994 char temp[128]; 995 996 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 997 998 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 999 1000 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 1001 return (ENOMEM); 1002 1003 ACPI_SERIAL_BEGIN(ibm); 1004 1005 /* Get old values if this is a get request. */ 1006 if (req->newptr == NULL) { 1007 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++) 1008 if (sc->handler_events & (1 << i)) 1009 sbuf_printf(&sb, "0x%02x ", i + 1); 1010 if (sbuf_len(&sb) == 0) 1011 sbuf_printf(&sb, "NONE"); 1012 } 1013 1014 sbuf_trim(&sb); 1015 sbuf_finish(&sb); 1016 strlcpy(temp, sbuf_data(&sb), sizeof(temp)); 1017 sbuf_delete(&sb); 1018 1019 error = sysctl_handle_string(oidp, temp, sizeof(temp), req); 1020 1021 /* Check for error or no change */ 1022 if (error != 0 || req->newptr == NULL) 1023 goto out; 1024 1025 /* If the user is setting a string, parse it. */ 1026 handler_events = 0; 1027 cp = temp; 1028 while (*cp) { 1029 if (isspace(*cp)) { 1030 cp++; 1031 continue; 1032 } 1033 1034 ep = cp; 1035 1036 while (*ep && !isspace(*ep)) 1037 ep++; 1038 1039 l = ep - cp; 1040 if (l == 0) 1041 break; 1042 1043 if (strncmp(cp, "NONE", 4) == 0) { 1044 cp = ep; 1045 continue; 1046 } 1047 1048 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x')) 1049 val = strtoul(cp, &ep, 16); 1050 else 1051 val = strtoul(cp, &ep, 10); 1052 1053 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) { 1054 cp[l] = '\0'; 1055 device_printf(sc->dev, "invalid event code: %s\n", cp); 1056 error = EINVAL; 1057 goto out; 1058 } 1059 1060 handler_events |= 1 << (val - 1); 1061 1062 cp = ep; 1063 } 1064 1065 sc->handler_events = handler_events; 1066out: 1067 ACPI_SERIAL_END(ibm); 1068 return (error); 1069} 1070 1071static int 1072acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg) 1073{ 1074 int val, step; 1075 UINT64 val_ec; 1076 ACPI_OBJECT Arg; 1077 ACPI_OBJECT_LIST Args; 1078 ACPI_STATUS status; 1079 1080 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1081 ACPI_SERIAL_ASSERT(ibm); 1082 1083 if (arg < 0 || arg > 7) 1084 return (EINVAL); 1085 1086 /* Read the current brightness */ 1087 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 1088 if (ACPI_FAILURE(status)) 1089 return (status); 1090 1091 if (sc->cmos_handle) { 1092 val = val_ec & IBM_EC_MASK_BRI; 1093 1094 Args.Count = 1; 1095 Args.Pointer = &Arg; 1096 Arg.Type = ACPI_TYPE_INTEGER; 1097 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : 1098 IBM_CMOS_BRIGHTNESS_DOWN; 1099 1100 step = (arg > val) ? 1 : -1; 1101 for (int i = val; i != arg; i += step) { 1102 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1103 &Args, NULL); 1104 if (ACPI_FAILURE(status)) { 1105 /* Record the last value */ 1106 if (i != val) { 1107 ACPI_EC_WRITE(sc->ec_dev, 1108 IBM_EC_BRIGHTNESS, i - step, 1); 1109 } 1110 return (status); 1111 } 1112 } 1113 } 1114 1115 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1); 1116} 1117 1118static int 1119acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg) 1120{ 1121 int val; 1122 1123 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1124 ACPI_SERIAL_ASSERT(ibm); 1125 1126 if (arg < 0 || arg > 1) 1127 return (EINVAL); 1128 1129 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : 1130 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT); 1131 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val); 1132} 1133 1134static int 1135acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg) 1136{ 1137 ACPI_OBJECT Arg; 1138 ACPI_OBJECT_LIST Args; 1139 ACPI_STATUS status; 1140 1141 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1142 ACPI_SERIAL_ASSERT(ibm); 1143 1144 if (arg < 0 || arg > 1) 1145 return (EINVAL); 1146 1147 if (sc->light_set_supported) { 1148 Args.Count = 1; 1149 Args.Pointer = &Arg; 1150 Arg.Type = ACPI_TYPE_INTEGER; 1151 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off; 1152 1153 status = AcpiEvaluateObject(sc->light_handle, NULL, 1154 &Args, NULL); 1155 if (ACPI_SUCCESS(status)) 1156 sc->light_val = arg; 1157 return (status); 1158 } 1159 1160 return (0); 1161} 1162 1163static int 1164acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg) 1165{ 1166 int val, step; 1167 UINT64 val_ec; 1168 ACPI_OBJECT Arg; 1169 ACPI_OBJECT_LIST Args; 1170 ACPI_STATUS status; 1171 1172 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1173 ACPI_SERIAL_ASSERT(ibm); 1174 1175 if (arg < 0 || arg > 14) 1176 return (EINVAL); 1177 1178 /* Read the current volume */ 1179 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1180 if (ACPI_FAILURE(status)) 1181 return (status); 1182 1183 if (sc->cmos_handle) { 1184 val = val_ec & IBM_EC_MASK_VOL; 1185 1186 Args.Count = 1; 1187 Args.Pointer = &Arg; 1188 Arg.Type = ACPI_TYPE_INTEGER; 1189 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : 1190 IBM_CMOS_VOLUME_DOWN; 1191 1192 step = (arg > val) ? 1 : -1; 1193 for (int i = val; i != arg; i += step) { 1194 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1195 &Args, NULL); 1196 if (ACPI_FAILURE(status)) { 1197 /* Record the last value */ 1198 if (i != val) { 1199 val_ec = i - step + 1200 (val_ec & (~IBM_EC_MASK_VOL)); 1201 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, 1202 val_ec, 1); 1203 } 1204 return (status); 1205 } 1206 } 1207 } 1208 1209 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL)); 1210 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1211} 1212 1213static int 1214acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg) 1215{ 1216 UINT64 val_ec; 1217 ACPI_OBJECT Arg; 1218 ACPI_OBJECT_LIST Args; 1219 ACPI_STATUS status; 1220 1221 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1222 ACPI_SERIAL_ASSERT(ibm); 1223 1224 if (arg < 0 || arg > 1) 1225 return (EINVAL); 1226 1227 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1228 if (ACPI_FAILURE(status)) 1229 return (status); 1230 1231 if (sc->cmos_handle) { 1232 Args.Count = 1; 1233 Args.Pointer = &Arg; 1234 Arg.Type = ACPI_TYPE_INTEGER; 1235 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE; 1236 1237 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 1238 if (ACPI_FAILURE(status)) 1239 return (status); 1240 } 1241 1242 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE : 1243 val_ec & (~IBM_EC_MASK_MUTE); 1244 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1245} 1246 1247static void 1248acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg) 1249{ 1250 int val; 1251 UINT64 val_ec; 1252 ACPI_STATUS status; 1253 1254 ACPI_SERIAL_BEGIN(ibm); 1255 switch (arg) { 1256 case IBM_EVENT_SUSPEND_TO_RAM: 1257 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 1258 break; 1259 1260 case IBM_EVENT_BLUETOOTH: 1261 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0)); 1262 break; 1263 1264 case IBM_EVENT_BRIGHTNESS_UP: 1265 case IBM_EVENT_BRIGHTNESS_DOWN: 1266 /* Read the current brightness */ 1267 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, 1268 &val_ec, 1); 1269 if (ACPI_FAILURE(status)) 1270 return; 1271 1272 val = val_ec & IBM_EC_MASK_BRI; 1273 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1; 1274 acpi_ibm_brightness_set(sc, val); 1275 break; 1276 1277 case IBM_EVENT_THINKLIGHT: 1278 acpi_ibm_thinklight_set(sc, (sc->light_val == 0)); 1279 break; 1280 1281 case IBM_EVENT_VOLUME_UP: 1282 case IBM_EVENT_VOLUME_DOWN: 1283 /* Read the current volume */ 1284 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1285 if (ACPI_FAILURE(status)) 1286 return; 1287 1288 val = val_ec & IBM_EC_MASK_VOL; 1289 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1; 1290 acpi_ibm_volume_set(sc, val); 1291 break; 1292 1293 case IBM_EVENT_MUTE: 1294 /* Read the current value */ 1295 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1296 if (ACPI_FAILURE(status)) 1297 return; 1298 1299 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 1300 acpi_ibm_mute_set(sc, (val == 0)); 1301 break; 1302 1303 default: 1304 break; 1305 } 1306 ACPI_SERIAL_END(ibm); 1307} 1308 1309static void 1310acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context) 1311{ 1312 int event, arg, type; 1313 device_t dev = context; 1314 struct acpi_ibm_softc *sc = device_get_softc(dev); 1315 1316 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); 1317 1318 if (notify != 0x80) 1319 device_printf(dev, "Unknown notify\n"); 1320 1321 for (;;) { 1322 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event); 1323 if (event == 0) 1324 break; 1325 1326 1327 type = (event >> 12) & 0xf; 1328 arg = event & 0xfff; 1329 switch (type) { 1330 case 1: 1331 if (!(sc->events_availmask & (1 << (arg - 1)))) { 1332 device_printf(dev, "Unknown key %d\n", arg); 1333 break; 1334 } 1335 1336 /* Execute event handler */ 1337 if (sc->handler_events & (1 << (arg - 1))) 1338 acpi_ibm_eventhandler(sc, (arg & 0xff)); 1339 1340 /* Notify devd(8) */ 1341 acpi_UserNotify("IBM", h, (arg & 0xff)); 1342 break; 1343 default: 1344 break; 1345 } 1346 } 1347} 1348