1/*- 2 * Copyright (c) 2004 Takanori Watanabe 3 * Copyright (c) 2005 Markus Brueffer <markus@FreeBSD.org> 4 * All rights reserved. 5 * Copyright (c) 2020 Ali Abdallah <ali.abdallah@suse.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30/* 31 * Driver for extra ACPI-controlled gadgets found on ThinkPad laptops. 32 * Inspired by the ibm-acpi and tpb projects which implement these features 33 * on Linux. 34 * 35 * acpi-ibm: <http://ibm-acpi.sourceforge.net/> 36 * tpb: <http://www.nongnu.org/tpb/> 37 */ 38 39#include "opt_acpi.h" 40#include <sys/param.h> 41#include <sys/systm.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#define ACPI_IBM_METHOD_MIC_LED 15 77#define ACPI_IBM_METHOD_PRIVACYGUARD 16 78 79/* Hotkeys/Buttons */ 80#define IBM_RTC_HOTKEY1 0x64 81#define IBM_RTC_MASK_HOME (1 << 0) 82#define IBM_RTC_MASK_SEARCH (1 << 1) 83#define IBM_RTC_MASK_MAIL (1 << 2) 84#define IBM_RTC_MASK_WLAN (1 << 5) 85#define IBM_RTC_HOTKEY2 0x65 86#define IBM_RTC_MASK_THINKPAD (1 << 3) 87#define IBM_RTC_MASK_ZOOM (1 << 5) 88#define IBM_RTC_MASK_VIDEO (1 << 6) 89#define IBM_RTC_MASK_HIBERNATE (1 << 7) 90#define IBM_RTC_THINKLIGHT 0x66 91#define IBM_RTC_MASK_THINKLIGHT (1 << 4) 92#define IBM_RTC_SCREENEXPAND 0x67 93#define IBM_RTC_MASK_SCREENEXPAND (1 << 5) 94#define IBM_RTC_BRIGHTNESS 0x6c 95#define IBM_RTC_MASK_BRIGHTNESS (1 << 5) 96#define IBM_RTC_VOLUME 0x6e 97#define IBM_RTC_MASK_VOLUME (1 << 7) 98 99/* Embedded Controller registers */ 100#define IBM_EC_BRIGHTNESS 0x31 101#define IBM_EC_MASK_BRI 0x7 102#define IBM_EC_VOLUME 0x30 103#define IBM_EC_MASK_VOL 0xf 104#define IBM_EC_MASK_MUTE (1 << 6) 105#define IBM_EC_FANSTATUS 0x2F 106#define IBM_EC_MASK_FANLEVEL 0x3f 107#define IBM_EC_MASK_FANUNTHROTTLED (1 << 6) 108#define IBM_EC_MASK_FANSTATUS (1 << 7) 109#define IBM_EC_FANSPEED 0x84 110 111/* CMOS Commands */ 112#define IBM_CMOS_VOLUME_DOWN 0 113#define IBM_CMOS_VOLUME_UP 1 114#define IBM_CMOS_VOLUME_MUTE 2 115#define IBM_CMOS_BRIGHTNESS_UP 4 116#define IBM_CMOS_BRIGHTNESS_DOWN 5 117 118/* ACPI methods */ 119#define IBM_NAME_KEYLIGHT "KBLT" 120#define IBM_NAME_WLAN_BT_GET "GBDC" 121#define IBM_NAME_WLAN_BT_SET "SBDC" 122#define IBM_NAME_MASK_BT (1 << 1) 123#define IBM_NAME_MASK_WLAN (1 << 2) 124#define IBM_NAME_THERMAL_GET "TMP7" 125#define IBM_NAME_THERMAL_UPDT "UPDT" 126#define IBM_NAME_PRIVACYGUARD_GET "GSSS" 127#define IBM_NAME_PRIVACYGUARD_SET "SSSS" 128 129#define IBM_NAME_EVENTS_STATUS_GET "DHKC" 130#define IBM_NAME_EVENTS_MASK_GET "DHKN" 131#define IBM_NAME_EVENTS_STATUS_SET "MHKC" 132#define IBM_NAME_EVENTS_MASK_SET "MHKM" 133#define IBM_NAME_EVENTS_GET "MHKP" 134#define IBM_NAME_EVENTS_AVAILMASK "MHKA" 135 136/* Event Code */ 137#define IBM_EVENT_LCD_BACKLIGHT 0x03 138#define IBM_EVENT_SUSPEND_TO_RAM 0x04 139#define IBM_EVENT_BLUETOOTH 0x05 140#define IBM_EVENT_SCREEN_EXPAND 0x07 141#define IBM_EVENT_SUSPEND_TO_DISK 0x0c 142#define IBM_EVENT_BRIGHTNESS_UP 0x10 143#define IBM_EVENT_BRIGHTNESS_DOWN 0x11 144#define IBM_EVENT_THINKLIGHT 0x12 145#define IBM_EVENT_ZOOM 0x14 146#define IBM_EVENT_VOLUME_UP 0x15 147#define IBM_EVENT_VOLUME_DOWN 0x16 148#define IBM_EVENT_MUTE 0x17 149#define IBM_EVENT_ACCESS_IBM_BUTTON 0x18 150 151/* Device-specific register flags */ 152#define IBM_FLAG_PRIVACYGUARD_DEVICE_PRESENT 0x10000 153#define IBM_FLAG_PRIVACYGUARD_ON 0x1 154 155#define ABS(x) (((x) < 0)? -(x) : (x)) 156 157struct acpi_ibm_softc { 158 device_t dev; 159 ACPI_HANDLE handle; 160 161 /* Embedded controller */ 162 device_t ec_dev; 163 ACPI_HANDLE ec_handle; 164 165 /* CMOS */ 166 ACPI_HANDLE cmos_handle; 167 168 /* Fan status */ 169 ACPI_HANDLE fan_handle; 170 int fan_levels; 171 172 /* Keylight commands and states */ 173 ACPI_HANDLE light_handle; 174 int light_cmd_on; 175 int light_cmd_off; 176 int light_val; 177 int light_get_supported; 178 int light_set_supported; 179 180 /* led(4) interface */ 181 struct cdev *led_dev; 182 int led_busy; 183 int led_state; 184 185 /* Mic led handle */ 186 ACPI_HANDLE mic_led_handle; 187 int mic_led_state; 188 189 int wlan_bt_flags; 190 int thermal_updt_supported; 191 192 unsigned int events_availmask; 193 unsigned int events_initialmask; 194 int events_mask_supported; 195 int events_enable; 196 197 unsigned int handler_events; 198 199 struct sysctl_ctx_list *sysctl_ctx; 200 struct sysctl_oid *sysctl_tree; 201}; 202 203static struct { 204 char *name; 205 int method; 206 char *description; 207 int flag_rdonly; 208} acpi_ibm_sysctls[] = { 209 { 210 .name = "events", 211 .method = ACPI_IBM_METHOD_EVENTS, 212 .description = "ACPI events enable", 213 }, 214 { 215 .name = "eventmask", 216 .method = ACPI_IBM_METHOD_EVENTMASK, 217 .description = "ACPI eventmask", 218 }, 219 { 220 .name = "hotkey", 221 .method = ACPI_IBM_METHOD_HOTKEY, 222 .description = "Key Status", 223 .flag_rdonly = 1 224 }, 225 { 226 .name = "lcd_brightness", 227 .method = ACPI_IBM_METHOD_BRIGHTNESS, 228 .description = "LCD Brightness", 229 }, 230 { 231 .name = "volume", 232 .method = ACPI_IBM_METHOD_VOLUME, 233 .description = "Volume", 234 }, 235 { 236 .name = "mute", 237 .method = ACPI_IBM_METHOD_MUTE, 238 .description = "Mute", 239 }, 240 { 241 .name = "thinklight", 242 .method = ACPI_IBM_METHOD_THINKLIGHT, 243 .description = "Thinklight enable", 244 }, 245 { 246 .name = "bluetooth", 247 .method = ACPI_IBM_METHOD_BLUETOOTH, 248 .description = "Bluetooth enable", 249 }, 250 { 251 .name = "wlan", 252 .method = ACPI_IBM_METHOD_WLAN, 253 .description = "WLAN enable", 254 .flag_rdonly = 1 255 }, 256 { 257 .name = "fan_speed", 258 .method = ACPI_IBM_METHOD_FANSPEED, 259 .description = "Fan speed", 260 .flag_rdonly = 1 261 }, 262 { 263 .name = "fan_level", 264 .method = ACPI_IBM_METHOD_FANLEVEL, 265 .description = "Fan level, 0-7 (recommended max), " 266 "8 (unthrottled, full-speed)", 267 }, 268 { 269 .name = "fan", 270 .method = ACPI_IBM_METHOD_FANSTATUS, 271 .description = "Fan enable", 272 }, 273 { 274 .name = "mic_led", 275 .method = ACPI_IBM_METHOD_MIC_LED, 276 .description = "Mic led", 277 }, 278 { 279 .name = "privacyguard", 280 .method = ACPI_IBM_METHOD_PRIVACYGUARD, 281 .description = "PrivacyGuard enable", 282 }, 283 { NULL, 0, NULL, 0 } 284}; 285 286/* 287 * Per-model default list of event mask. 288 */ 289#define ACPI_IBM_HKEY_RFKILL_MASK (1 << 4) 290#define ACPI_IBM_HKEY_DSWITCH_MASK (1 << 6) 291#define ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK (1 << 15) 292#define ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK (1 << 16) 293#define ACPI_IBM_HKEY_SEARCH_MASK (1 << 18) 294#define ACPI_IBM_HKEY_MICMUTE_MASK (1 << 26) 295#define ACPI_IBM_HKEY_SETTINGS_MASK (1 << 28) 296#define ACPI_IBM_HKEY_VIEWOPEN_MASK (1 << 30) 297#define ACPI_IBM_HKEY_VIEWALL_MASK (1 << 31) 298 299struct acpi_ibm_models { 300 const char *maker; 301 const char *product; 302 uint32_t eventmask; 303} acpi_ibm_models[] = { 304 { "LENOVO", "20BSCTO1WW", 305 ACPI_IBM_HKEY_RFKILL_MASK | 306 ACPI_IBM_HKEY_DSWITCH_MASK | 307 ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK | 308 ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK | 309 ACPI_IBM_HKEY_SEARCH_MASK | 310 ACPI_IBM_HKEY_MICMUTE_MASK | 311 ACPI_IBM_HKEY_SETTINGS_MASK | 312 ACPI_IBM_HKEY_VIEWOPEN_MASK | 313 ACPI_IBM_HKEY_VIEWALL_MASK 314 } 315}; 316 317ACPI_SERIAL_DECL(ibm, "ThinkPad ACPI Extras"); 318 319static int acpi_ibm_probe(device_t dev); 320static int acpi_ibm_attach(device_t dev); 321static int acpi_ibm_detach(device_t dev); 322static int acpi_ibm_resume(device_t dev); 323 324static void ibm_led(void *softc, int onoff); 325static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused); 326 327static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS); 328static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method); 329static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method); 330static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val); 331 332static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val); 333static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS); 334static int acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS); 335static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context); 336 337static int acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg); 338static int acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg); 339static int acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg); 340static int acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg); 341static int acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg); 342static int acpi_ibm_privacyguard_get(struct acpi_ibm_softc *sc); 343static ACPI_STATUS acpi_ibm_privacyguard_set(struct acpi_ibm_softc *sc, int arg); 344static ACPI_STATUS acpi_ibm_privacyguard_acpi_call(struct acpi_ibm_softc *sc, bool write, int *arg); 345 346static int acpi_status_to_errno(ACPI_STATUS status); 347 348static device_method_t acpi_ibm_methods[] = { 349 /* Device interface */ 350 DEVMETHOD(device_probe, acpi_ibm_probe), 351 DEVMETHOD(device_attach, acpi_ibm_attach), 352 DEVMETHOD(device_detach, acpi_ibm_detach), 353 DEVMETHOD(device_resume, acpi_ibm_resume), 354 355 DEVMETHOD_END 356}; 357 358static driver_t acpi_ibm_driver = { 359 "acpi_ibm", 360 acpi_ibm_methods, 361 sizeof(struct acpi_ibm_softc), 362}; 363 364DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, 0, 0); 365MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1); 366static char *ibm_ids[] = {"IBM0068", "LEN0068", "LEN0268", NULL}; 367 368static int 369acpi_status_to_errno(ACPI_STATUS status) 370{ 371 switch (status) { 372 case AE_OK: 373 return (0); 374 case AE_BAD_PARAMETER: 375 return (EINVAL); 376 default: 377 return (ENODEV); 378 } 379} 380 381static void 382ibm_led(void *softc, int onoff) 383{ 384 struct acpi_ibm_softc *sc = softc; 385 386 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 387 388 if (sc->led_busy) 389 return; 390 391 sc->led_busy = 1; 392 sc->led_state = onoff; 393 394 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc); 395} 396 397static void 398ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused) 399{ 400 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 401 402 ACPI_SERIAL_BEGIN(ibm); 403 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state); 404 ACPI_SERIAL_END(ibm); 405 406 sc->led_busy = 0; 407} 408 409static int 410acpi_ibm_mic_led_set(struct acpi_ibm_softc *sc, int arg) 411{ 412 ACPI_OBJECT_LIST input; 413 ACPI_OBJECT params[1]; 414 ACPI_STATUS status; 415 416 if (arg < 0 || arg > 1) 417 return (EINVAL); 418 419 if (sc->mic_led_handle) { 420 params[0].Type = ACPI_TYPE_INTEGER; 421 params[0].Integer.Value = 0; 422 /* mic led: 0 off, 2 on */ 423 if (arg == 1) 424 params[0].Integer.Value = 2; 425 426 input.Pointer = params; 427 input.Count = 1; 428 429 status = AcpiEvaluateObject(sc->handle, "MMTS", &input, NULL); 430 if (ACPI_SUCCESS(status)) 431 sc->mic_led_state = arg; 432 return (status); 433 } 434 435 return (0); 436} 437 438static int 439acpi_ibm_probe(device_t dev) 440{ 441 int rv; 442 443 if (acpi_disabled("ibm") || device_get_unit(dev) != 0) 444 return (ENXIO); 445 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids, NULL); 446 447 if (rv <= 0) 448 device_set_desc(dev, "ThinkPad ACPI Extras"); 449 450 return (rv); 451} 452 453static int 454acpi_ibm_attach(device_t dev) 455{ 456 int i; 457 int hkey; 458 struct acpi_ibm_softc *sc; 459 char *maker, *product; 460 ACPI_OBJECT_LIST input; 461 ACPI_OBJECT params[1]; 462 ACPI_OBJECT out_obj; 463 ACPI_BUFFER result; 464 devclass_t ec_devclass; 465 466 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 467 468 sc = device_get_softc(dev); 469 sc->dev = dev; 470 sc->handle = acpi_get_handle(dev); 471 472 /* Look for the first embedded controller */ 473 if (!(ec_devclass = devclass_find ("acpi_ec"))) { 474 if (bootverbose) 475 device_printf(dev, "Couldn't find acpi_ec devclass\n"); 476 return (EINVAL); 477 } 478 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) { 479 if (bootverbose) 480 device_printf(dev, "Couldn't find acpi_ec device\n"); 481 return (EINVAL); 482 } 483 sc->ec_handle = acpi_get_handle(sc->ec_dev); 484 485 /* Get the sysctl tree */ 486 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 487 sc->sysctl_tree = device_get_sysctl_tree(dev); 488 489 /* Look for event mask and hook up the nodes */ 490 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle, 491 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask)); 492 493 if (sc->events_mask_supported) { 494 SYSCTL_ADD_UINT(sc->sysctl_ctx, 495 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "initialmask", 496 CTLFLAG_RD, &sc->events_initialmask, 0, 497 "Initial eventmask"); 498 499 if (ACPI_SUCCESS (acpi_GetInteger(sc->handle, "MHKV", &hkey))) { 500 device_printf(dev, "Firmware version is 0x%X\n", hkey); 501 switch (hkey >> 8) { 502 case 1: 503 /* The availmask is the bitmask of supported events */ 504 if (ACPI_FAILURE(acpi_GetInteger(sc->handle, 505 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask))) 506 sc->events_availmask = 0xffffffff; 507 break; 508 509 case 2: 510 result.Length = sizeof(out_obj); 511 result.Pointer = &out_obj; 512 params[0].Type = ACPI_TYPE_INTEGER; 513 params[0].Integer.Value = 1; 514 input.Pointer = params; 515 input.Count = 1; 516 517 sc->events_availmask = 0xffffffff; 518 519 if (ACPI_SUCCESS(AcpiEvaluateObject (sc->handle, 520 IBM_NAME_EVENTS_AVAILMASK, &input, &result))) 521 sc->events_availmask = out_obj.Integer.Value; 522 break; 523 default: 524 device_printf(dev, "Unknown firmware version 0x%x\n", hkey); 525 break; 526 } 527 } else 528 sc->events_availmask = 0xffffffff; 529 530 SYSCTL_ADD_UINT(sc->sysctl_ctx, 531 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 532 "availmask", CTLFLAG_RD, 533 &sc->events_availmask, 0, "Mask of supported events"); 534 } 535 536 /* Hook up proc nodes */ 537 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 538 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method)) 539 continue; 540 541 if (acpi_ibm_sysctls[i].flag_rdonly != 0) { 542 SYSCTL_ADD_PROC(sc->sysctl_ctx, 543 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 544 acpi_ibm_sysctls[i].name, 545 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 546 sc, i, acpi_ibm_sysctl, "I", 547 acpi_ibm_sysctls[i].description); 548 } else { 549 SYSCTL_ADD_PROC(sc->sysctl_ctx, 550 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 551 acpi_ibm_sysctls[i].name, 552 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 553 sc, i, acpi_ibm_sysctl, "I", 554 acpi_ibm_sysctls[i].description); 555 } 556 } 557 558 /* Hook up thermal node */ 559 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) { 560 SYSCTL_ADD_PROC(sc->sysctl_ctx, 561 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "thermal", 562 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0, 563 acpi_ibm_thermal_sysctl, "I", "Thermal zones"); 564 } 565 566 /* Hook up handlerevents node */ 567 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_HANDLEREVENTS)) { 568 SYSCTL_ADD_PROC(sc->sysctl_ctx, 569 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "handlerevents", 570 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, 571 acpi_ibm_handlerevents_sysctl, "I", 572 "devd(8) events handled by acpi_ibm"); 573 } 574 575 /* Handle notifies */ 576 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 577 acpi_ibm_notify, dev); 578 579 /* Hook up light to led(4) */ 580 if (sc->light_set_supported) 581 sc->led_dev = led_create_state(ibm_led, sc, "thinklight", 582 (sc->light_val ? 1 : 0)); 583 584 /* Enable per-model events. */ 585 maker = kern_getenv("smbios.system.maker"); 586 product = kern_getenv("smbios.system.product"); 587 if (maker == NULL || product == NULL) 588 goto nosmbios; 589 590 for (i = 0; i < nitems(acpi_ibm_models); i++) { 591 if (strcmp(maker, acpi_ibm_models[i].maker) == 0 && 592 strcmp(product, acpi_ibm_models[i].product) == 0) { 593 ACPI_SERIAL_BEGIN(ibm); 594 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, 595 acpi_ibm_models[i].eventmask); 596 ACPI_SERIAL_END(ibm); 597 } 598 } 599 600nosmbios: 601 freeenv(maker); 602 freeenv(product); 603 604 /* Enable events by default. */ 605 ACPI_SERIAL_BEGIN(ibm); 606 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 1); 607 ACPI_SERIAL_END(ibm); 608 609 return (0); 610} 611 612static int 613acpi_ibm_detach(device_t dev) 614{ 615 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 616 617 struct acpi_ibm_softc *sc = device_get_softc(dev); 618 619 /* Disable events and restore eventmask */ 620 ACPI_SERIAL_BEGIN(ibm); 621 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0); 622 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask); 623 ACPI_SERIAL_END(ibm); 624 625 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify); 626 627 if (sc->led_dev != NULL) 628 led_destroy(sc->led_dev); 629 630 return (0); 631} 632 633static int 634acpi_ibm_resume(device_t dev) 635{ 636 struct acpi_ibm_softc *sc = device_get_softc(dev); 637 638 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 639 640 ACPI_SERIAL_BEGIN(ibm); 641 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 642 int val; 643 644 val = acpi_ibm_sysctl_get(sc, i); 645 646 if (acpi_ibm_sysctls[i].flag_rdonly != 0) 647 continue; 648 649 acpi_ibm_sysctl_set(sc, i, val); 650 } 651 ACPI_SERIAL_END(ibm); 652 653 /* The mic led does not turn back on when sysctl_set is called in the above loop */ 654 acpi_ibm_mic_led_set(sc, sc->mic_led_state); 655 656 return (0); 657} 658 659static int 660acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val) 661{ 662 ACPI_OBJECT arg[2]; 663 ACPI_OBJECT_LIST args; 664 ACPI_STATUS status; 665 666 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 667 ACPI_SERIAL_ASSERT(ibm); 668 669 args.Count = 2; 670 args.Pointer = arg; 671 arg[0].Type = ACPI_TYPE_INTEGER; 672 arg[1].Type = ACPI_TYPE_INTEGER; 673 674 for (int i = 0; i < 32; ++i) { 675 arg[0].Integer.Value = i + 1; 676 arg[1].Integer.Value = (((1 << i) & val) != 0); 677 status = AcpiEvaluateObject(sc->handle, 678 IBM_NAME_EVENTS_MASK_SET, &args, NULL); 679 680 if (ACPI_FAILURE(status)) 681 return (status); 682 } 683 684 return (0); 685} 686 687static int 688acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS) 689{ 690 struct acpi_ibm_softc *sc; 691 int arg; 692 int error = 0; 693 int function; 694 int method; 695 696 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 697 698 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 699 function = oidp->oid_arg2; 700 method = acpi_ibm_sysctls[function].method; 701 702 ACPI_SERIAL_BEGIN(ibm); 703 arg = acpi_ibm_sysctl_get(sc, method); 704 error = sysctl_handle_int(oidp, &arg, 0, req); 705 706 /* Sanity check */ 707 if (error != 0 || req->newptr == NULL) 708 goto out; 709 710 /* Update */ 711 error = acpi_ibm_sysctl_set(sc, method, arg); 712 713out: 714 ACPI_SERIAL_END(ibm); 715 return (error); 716} 717 718static int 719acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method) 720{ 721 UINT64 val_ec; 722 int val = 0, key; 723 724 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 725 ACPI_SERIAL_ASSERT(ibm); 726 727 switch (method) { 728 case ACPI_IBM_METHOD_EVENTS: 729 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val); 730 break; 731 732 case ACPI_IBM_METHOD_EVENTMASK: 733 if (sc->events_mask_supported) 734 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val); 735 break; 736 737 case ACPI_IBM_METHOD_HOTKEY: 738 /* 739 * Construct the hotkey as a bitmask as illustrated below. 740 * Note that whenever a key was pressed, the respecting bit 741 * toggles and nothing else changes. 742 * +--+--+-+-+-+-+-+-+-+-+-+-+ 743 * |11|10|9|8|7|6|5|4|3|2|1|0| 744 * +--+--+-+-+-+-+-+-+-+-+-+-+ 745 * | | | | | | | | | | | | 746 * | | | | | | | | | | | +- Home Button 747 * | | | | | | | | | | +--- Search Button 748 * | | | | | | | | | +----- Mail Button 749 * | | | | | | | | +------- Thinkpad Button 750 * | | | | | | | +--------- Zoom (Fn + Space) 751 * | | | | | | +----------- WLAN Button 752 * | | | | | +------------- Video Button 753 * | | | | +--------------- Hibernate Button 754 * | | | +----------------- Thinklight Button 755 * | | +------------------- Screen expand (Fn + F8) 756 * | +--------------------- Brightness 757 * +------------------------ Volume/Mute 758 */ 759 key = rtcin(IBM_RTC_HOTKEY1); 760 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key; 761 key = rtcin(IBM_RTC_HOTKEY2); 762 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key; 763 val |= (IBM_RTC_MASK_ZOOM & key) >> 1; 764 key = rtcin(IBM_RTC_THINKLIGHT); 765 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 766 key = rtcin(IBM_RTC_SCREENEXPAND); 767 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 768 key = rtcin(IBM_RTC_BRIGHTNESS); 769 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5; 770 key = rtcin(IBM_RTC_VOLUME); 771 val |= (IBM_RTC_MASK_VOLUME & key) << 4; 772 break; 773 774 case ACPI_IBM_METHOD_BRIGHTNESS: 775 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 776 val = val_ec & IBM_EC_MASK_BRI; 777 break; 778 779 case ACPI_IBM_METHOD_VOLUME: 780 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 781 val = val_ec & IBM_EC_MASK_VOL; 782 break; 783 784 case ACPI_IBM_METHOD_MUTE: 785 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 786 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 787 break; 788 789 case ACPI_IBM_METHOD_THINKLIGHT: 790 if (sc->light_get_supported) 791 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val); 792 else 793 val = sc->light_val; 794 break; 795 796 case ACPI_IBM_METHOD_BLUETOOTH: 797 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 798 sc->wlan_bt_flags = val; 799 val = ((val & IBM_NAME_MASK_BT) != 0); 800 break; 801 802 case ACPI_IBM_METHOD_WLAN: 803 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 804 sc->wlan_bt_flags = val; 805 val = ((val & IBM_NAME_MASK_WLAN) != 0); 806 break; 807 808 case ACPI_IBM_METHOD_FANSPEED: 809 if (sc->fan_handle) { 810 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val))) 811 val = -1; 812 } else { 813 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2); 814 val = val_ec; 815 } 816 break; 817 818 case ACPI_IBM_METHOD_FANLEVEL: 819 /* 820 * The IBM_EC_FANSTATUS register works as follows: 821 * Bit 0-5 indicate the level at which the fan operates. Only 822 * values between 0 and 7 have an effect. Everything 823 * above 7 is treated the same as level 7 824 * Bit 6 overrides the fan speed limit if set to 1 825 * Bit 7 indicates at which mode the fan operates: 826 * manual (0) or automatic (1) 827 */ 828 if (!sc->fan_handle) { 829 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 830 if (val_ec & IBM_EC_MASK_FANUNTHROTTLED) 831 val = 8; 832 else 833 val = val_ec & IBM_EC_MASK_FANLEVEL; 834 } 835 break; 836 837 case ACPI_IBM_METHOD_FANSTATUS: 838 if (!sc->fan_handle) { 839 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 840 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS; 841 } else 842 val = -1; 843 break; 844 845 case ACPI_IBM_METHOD_MIC_LED: 846 if (sc->mic_led_handle) 847 return sc->mic_led_state; 848 else 849 val = -1; 850 break; 851 852 case ACPI_IBM_METHOD_PRIVACYGUARD: 853 val = acpi_ibm_privacyguard_get(sc); 854 break; 855 } 856 857 return (val); 858} 859 860static int 861acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg) 862{ 863 int val; 864 UINT64 val_ec; 865 ACPI_STATUS status; 866 867 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 868 ACPI_SERIAL_ASSERT(ibm); 869 870 switch (method) { 871 case ACPI_IBM_METHOD_EVENTS: 872 if (arg < 0 || arg > 1) 873 return (EINVAL); 874 875 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg); 876 if (ACPI_FAILURE(status)) 877 return (status); 878 if (sc->events_mask_supported) 879 return acpi_ibm_eventmask_set(sc, sc->events_availmask); 880 break; 881 882 case ACPI_IBM_METHOD_EVENTMASK: 883 if (sc->events_mask_supported) 884 return acpi_ibm_eventmask_set(sc, arg); 885 break; 886 887 case ACPI_IBM_METHOD_BRIGHTNESS: 888 return acpi_ibm_brightness_set(sc, arg); 889 break; 890 891 case ACPI_IBM_METHOD_VOLUME: 892 return acpi_ibm_volume_set(sc, arg); 893 break; 894 895 case ACPI_IBM_METHOD_MUTE: 896 return acpi_ibm_mute_set(sc, arg); 897 break; 898 899 case ACPI_IBM_METHOD_MIC_LED: 900 return acpi_ibm_mic_led_set(sc, arg); 901 break; 902 903 case ACPI_IBM_METHOD_THINKLIGHT: 904 return acpi_ibm_thinklight_set(sc, arg); 905 break; 906 907 case ACPI_IBM_METHOD_BLUETOOTH: 908 return acpi_ibm_bluetooth_set(sc, arg); 909 break; 910 911 case ACPI_IBM_METHOD_PRIVACYGUARD: 912 return (acpi_status_to_errno(acpi_ibm_privacyguard_set(sc, arg))); 913 break; 914 915 case ACPI_IBM_METHOD_FANLEVEL: 916 if (arg < 0 || arg > 8) 917 return (EINVAL); 918 919 if (!sc->fan_handle) { 920 /* Read the current fan status. */ 921 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 922 val = val_ec & ~(IBM_EC_MASK_FANLEVEL | 923 IBM_EC_MASK_FANUNTHROTTLED); 924 925 if (arg == 8) 926 /* Full speed, set the unthrottled bit. */ 927 val |= 7 | IBM_EC_MASK_FANUNTHROTTLED; 928 else 929 val |= arg; 930 931 return (ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val, 932 1)); 933 } 934 break; 935 936 case ACPI_IBM_METHOD_FANSTATUS: 937 if (arg < 0 || arg > 1) 938 return (EINVAL); 939 940 if (!sc->fan_handle) { 941 /* Read the current fanstatus */ 942 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 943 944 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, 945 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1); 946 } 947 break; 948 } 949 950 return (0); 951} 952 953static int 954acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method) 955{ 956 int dummy; 957 ACPI_OBJECT_TYPE cmos_t; 958 ACPI_HANDLE ledb_handle; 959 960 switch (method) { 961 case ACPI_IBM_METHOD_EVENTS: 962 return (TRUE); 963 964 case ACPI_IBM_METHOD_EVENTMASK: 965 return (sc->events_mask_supported); 966 967 case ACPI_IBM_METHOD_HOTKEY: 968 case ACPI_IBM_METHOD_BRIGHTNESS: 969 case ACPI_IBM_METHOD_VOLUME: 970 case ACPI_IBM_METHOD_MUTE: 971 /* EC is required here, which was already checked before */ 972 return (TRUE); 973 974 case ACPI_IBM_METHOD_MIC_LED: 975 if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "MMTS", &sc->mic_led_handle))) 976 { 977 /* Turn off mic led by default */ 978 acpi_ibm_mic_led_set(sc, 0); 979 return (TRUE); 980 } else 981 sc->mic_led_handle = NULL; 982 return (FALSE); 983 984 case ACPI_IBM_METHOD_THINKLIGHT: 985 sc->cmos_handle = NULL; 986 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger( 987 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val)); 988 989 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) || 990 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) || 991 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) && 992 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) && 993 cmos_t == ACPI_TYPE_METHOD) { 994 sc->light_cmd_on = 0x0c; 995 sc->light_cmd_off = 0x0d; 996 sc->cmos_handle = sc->light_handle; 997 } 998 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) { 999 sc->light_cmd_on = 1; 1000 sc->light_cmd_off = 0; 1001 } else 1002 sc->light_handle = NULL; 1003 1004 sc->light_set_supported = (sc->light_handle && 1005 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle))); 1006 1007 if (sc->light_get_supported) 1008 return (TRUE); 1009 1010 if (sc->light_set_supported) { 1011 sc->light_val = 0; 1012 return (TRUE); 1013 } 1014 1015 return (FALSE); 1016 1017 case ACPI_IBM_METHOD_BLUETOOTH: 1018 case ACPI_IBM_METHOD_WLAN: 1019 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy))) 1020 return (TRUE); 1021 return (FALSE); 1022 1023 case ACPI_IBM_METHOD_FANSPEED: 1024 /* 1025 * Some models report the fan speed in levels from 0-7 1026 * Newer models report it contiguously 1027 */ 1028 sc->fan_levels = 1029 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) || 1030 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle))); 1031 return (TRUE); 1032 1033 case ACPI_IBM_METHOD_FANLEVEL: 1034 case ACPI_IBM_METHOD_FANSTATUS: 1035 /* 1036 * Fan status is only supported on those models, 1037 * which report fan RPM contiguously, not in levels 1038 */ 1039 if (sc->fan_levels) 1040 return (FALSE); 1041 return (TRUE); 1042 1043 case ACPI_IBM_METHOD_THERMAL: 1044 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) { 1045 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy)); 1046 return (TRUE); 1047 } 1048 return (FALSE); 1049 1050 case ACPI_IBM_METHOD_HANDLEREVENTS: 1051 return (TRUE); 1052 1053 case ACPI_IBM_METHOD_PRIVACYGUARD: 1054 return (acpi_ibm_privacyguard_get(sc) != -1); 1055 } 1056 return (FALSE); 1057} 1058 1059static int 1060acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS) 1061{ 1062 struct acpi_ibm_softc *sc; 1063 int error = 0; 1064 char temp_cmd[] = "TMP0"; 1065 int temp[8]; 1066 1067 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1068 1069 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 1070 1071 ACPI_SERIAL_BEGIN(ibm); 1072 1073 for (int i = 0; i < 8; ++i) { 1074 temp_cmd[3] = '0' + i; 1075 1076 /* 1077 * The TMPx methods seem to return +/- 128 or 0 1078 * when the respecting sensor is not available 1079 */ 1080 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 1081 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) 1082 temp[i] = -1; 1083 else if (sc->thermal_updt_supported) 1084 /* Temperature is reported in tenth of Kelvin */ 1085 temp[i] = (temp[i] - 2731 + 5) / 10; 1086 } 1087 1088 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req); 1089 1090 ACPI_SERIAL_END(ibm); 1091 return (error); 1092} 1093 1094static int 1095acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS) 1096{ 1097 struct acpi_ibm_softc *sc; 1098 int error = 0; 1099 struct sbuf sb; 1100 char *cp, *ep; 1101 int l, val; 1102 unsigned int handler_events; 1103 char temp[128]; 1104 1105 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1106 1107 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 1108 1109 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 1110 return (ENOMEM); 1111 1112 ACPI_SERIAL_BEGIN(ibm); 1113 1114 /* Get old values if this is a get request. */ 1115 if (req->newptr == NULL) { 1116 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++) 1117 if (sc->handler_events & (1 << i)) 1118 sbuf_printf(&sb, "0x%02x ", i + 1); 1119 if (sbuf_len(&sb) == 0) 1120 sbuf_printf(&sb, "NONE"); 1121 } 1122 1123 sbuf_trim(&sb); 1124 sbuf_finish(&sb); 1125 strlcpy(temp, sbuf_data(&sb), sizeof(temp)); 1126 sbuf_delete(&sb); 1127 1128 error = sysctl_handle_string(oidp, temp, sizeof(temp), req); 1129 1130 /* Check for error or no change */ 1131 if (error != 0 || req->newptr == NULL) 1132 goto out; 1133 1134 /* If the user is setting a string, parse it. */ 1135 handler_events = 0; 1136 cp = temp; 1137 while (*cp) { 1138 if (isspace(*cp)) { 1139 cp++; 1140 continue; 1141 } 1142 1143 ep = cp; 1144 1145 while (*ep && !isspace(*ep)) 1146 ep++; 1147 1148 l = ep - cp; 1149 if (l == 0) 1150 break; 1151 1152 if (strncmp(cp, "NONE", 4) == 0) { 1153 cp = ep; 1154 continue; 1155 } 1156 1157 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x')) 1158 val = strtoul(cp, &ep, 16); 1159 else 1160 val = strtoul(cp, &ep, 10); 1161 1162 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) { 1163 cp[l] = '\0'; 1164 device_printf(sc->dev, "invalid event code: %s\n", cp); 1165 error = EINVAL; 1166 goto out; 1167 } 1168 1169 handler_events |= 1 << (val - 1); 1170 1171 cp = ep; 1172 } 1173 1174 sc->handler_events = handler_events; 1175out: 1176 ACPI_SERIAL_END(ibm); 1177 return (error); 1178} 1179 1180static int 1181acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg) 1182{ 1183 int val, step; 1184 UINT64 val_ec; 1185 ACPI_OBJECT Arg; 1186 ACPI_OBJECT_LIST Args; 1187 ACPI_STATUS status; 1188 1189 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1190 ACPI_SERIAL_ASSERT(ibm); 1191 1192 if (arg < 0 || arg > 7) 1193 return (EINVAL); 1194 1195 /* Read the current brightness */ 1196 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 1197 if (ACPI_FAILURE(status)) 1198 return (status); 1199 1200 if (sc->cmos_handle) { 1201 val = val_ec & IBM_EC_MASK_BRI; 1202 1203 Args.Count = 1; 1204 Args.Pointer = &Arg; 1205 Arg.Type = ACPI_TYPE_INTEGER; 1206 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : 1207 IBM_CMOS_BRIGHTNESS_DOWN; 1208 1209 step = (arg > val) ? 1 : -1; 1210 for (int i = val; i != arg; i += step) { 1211 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1212 &Args, NULL); 1213 if (ACPI_FAILURE(status)) { 1214 /* Record the last value */ 1215 if (i != val) { 1216 ACPI_EC_WRITE(sc->ec_dev, 1217 IBM_EC_BRIGHTNESS, i - step, 1); 1218 } 1219 return (status); 1220 } 1221 } 1222 } 1223 1224 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1); 1225} 1226 1227static int 1228acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg) 1229{ 1230 int val; 1231 1232 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1233 ACPI_SERIAL_ASSERT(ibm); 1234 1235 if (arg < 0 || arg > 1) 1236 return (EINVAL); 1237 1238 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : 1239 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT); 1240 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val); 1241} 1242 1243static int 1244acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg) 1245{ 1246 ACPI_OBJECT Arg; 1247 ACPI_OBJECT_LIST Args; 1248 ACPI_STATUS status; 1249 1250 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1251 ACPI_SERIAL_ASSERT(ibm); 1252 1253 if (arg < 0 || arg > 1) 1254 return (EINVAL); 1255 1256 if (sc->light_set_supported) { 1257 Args.Count = 1; 1258 Args.Pointer = &Arg; 1259 Arg.Type = ACPI_TYPE_INTEGER; 1260 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off; 1261 1262 status = AcpiEvaluateObject(sc->light_handle, NULL, 1263 &Args, NULL); 1264 if (ACPI_SUCCESS(status)) 1265 sc->light_val = arg; 1266 return (status); 1267 } 1268 1269 return (0); 1270} 1271 1272/* 1273 * Helper function to make a get or set ACPI call to the PrivacyGuard handle. 1274 * Only meant to be used internally by the get/set functions below. 1275 */ 1276static ACPI_STATUS 1277acpi_ibm_privacyguard_acpi_call(struct acpi_ibm_softc *sc, bool write, int *arg) 1278{ 1279 ACPI_OBJECT Arg; 1280 ACPI_OBJECT_LIST Args; 1281 ACPI_STATUS status; 1282 ACPI_OBJECT out_obj; 1283 ACPI_BUFFER result; 1284 1285 Arg.Type = ACPI_TYPE_INTEGER; 1286 Arg.Integer.Value = (write ? *arg : 0); 1287 Args.Count = 1; 1288 Args.Pointer = &Arg; 1289 result.Length = sizeof(out_obj); 1290 result.Pointer = &out_obj; 1291 1292 status = AcpiEvaluateObject(sc->handle, 1293 (write ? IBM_NAME_PRIVACYGUARD_SET : IBM_NAME_PRIVACYGUARD_GET), 1294 &Args, &result); 1295 if (ACPI_SUCCESS(status) && !write) 1296 *arg = out_obj.Integer.Value; 1297 1298 return (status); 1299} 1300 1301/* 1302 * Returns -1 if the device is not present. 1303 */ 1304static int 1305acpi_ibm_privacyguard_get(struct acpi_ibm_softc *sc) 1306{ 1307 ACPI_STATUS status; 1308 int val; 1309 1310 status = acpi_ibm_privacyguard_acpi_call(sc, false, &val); 1311 if (ACPI_SUCCESS(status) && 1312 (val & IBM_FLAG_PRIVACYGUARD_DEVICE_PRESENT)) 1313 return (val & IBM_FLAG_PRIVACYGUARD_ON); 1314 1315 return (-1); 1316} 1317 1318static ACPI_STATUS 1319acpi_ibm_privacyguard_set(struct acpi_ibm_softc *sc, int arg) 1320{ 1321 if (arg < 0 || arg > 1) 1322 return (AE_BAD_PARAMETER); 1323 1324 return (acpi_ibm_privacyguard_acpi_call(sc, true, &arg)); 1325} 1326 1327static int 1328acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg) 1329{ 1330 int val, step; 1331 UINT64 val_ec; 1332 ACPI_OBJECT Arg; 1333 ACPI_OBJECT_LIST Args; 1334 ACPI_STATUS status; 1335 1336 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1337 ACPI_SERIAL_ASSERT(ibm); 1338 1339 if (arg < 0 || arg > 14) 1340 return (EINVAL); 1341 1342 /* Read the current volume */ 1343 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1344 if (ACPI_FAILURE(status)) 1345 return (status); 1346 1347 if (sc->cmos_handle) { 1348 val = val_ec & IBM_EC_MASK_VOL; 1349 1350 Args.Count = 1; 1351 Args.Pointer = &Arg; 1352 Arg.Type = ACPI_TYPE_INTEGER; 1353 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : 1354 IBM_CMOS_VOLUME_DOWN; 1355 1356 step = (arg > val) ? 1 : -1; 1357 for (int i = val; i != arg; i += step) { 1358 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1359 &Args, NULL); 1360 if (ACPI_FAILURE(status)) { 1361 /* Record the last value */ 1362 if (i != val) { 1363 val_ec = i - step + 1364 (val_ec & (~IBM_EC_MASK_VOL)); 1365 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, 1366 val_ec, 1); 1367 } 1368 return (status); 1369 } 1370 } 1371 } 1372 1373 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL)); 1374 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1375} 1376 1377static int 1378acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg) 1379{ 1380 UINT64 val_ec; 1381 ACPI_OBJECT Arg; 1382 ACPI_OBJECT_LIST Args; 1383 ACPI_STATUS status; 1384 1385 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1386 ACPI_SERIAL_ASSERT(ibm); 1387 1388 if (arg < 0 || arg > 1) 1389 return (EINVAL); 1390 1391 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1392 if (ACPI_FAILURE(status)) 1393 return (status); 1394 1395 if (sc->cmos_handle) { 1396 Args.Count = 1; 1397 Args.Pointer = &Arg; 1398 Arg.Type = ACPI_TYPE_INTEGER; 1399 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE; 1400 1401 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 1402 if (ACPI_FAILURE(status)) 1403 return (status); 1404 } 1405 1406 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE : 1407 val_ec & (~IBM_EC_MASK_MUTE); 1408 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1409} 1410 1411static void 1412acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg) 1413{ 1414 int val; 1415 UINT64 val_ec; 1416 ACPI_STATUS status; 1417 1418 ACPI_SERIAL_BEGIN(ibm); 1419 switch (arg) { 1420 case IBM_EVENT_SUSPEND_TO_RAM: 1421 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 1422 break; 1423 1424 case IBM_EVENT_BLUETOOTH: 1425 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0)); 1426 break; 1427 1428 case IBM_EVENT_BRIGHTNESS_UP: 1429 case IBM_EVENT_BRIGHTNESS_DOWN: 1430 /* Read the current brightness */ 1431 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, 1432 &val_ec, 1); 1433 if (ACPI_FAILURE(status)) 1434 return; 1435 1436 val = val_ec & IBM_EC_MASK_BRI; 1437 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1; 1438 acpi_ibm_brightness_set(sc, val); 1439 break; 1440 1441 case IBM_EVENT_THINKLIGHT: 1442 acpi_ibm_thinklight_set(sc, (sc->light_val == 0)); 1443 break; 1444 1445 case IBM_EVENT_VOLUME_UP: 1446 case IBM_EVENT_VOLUME_DOWN: 1447 /* Read the current volume */ 1448 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1449 if (ACPI_FAILURE(status)) 1450 return; 1451 1452 val = val_ec & IBM_EC_MASK_VOL; 1453 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1; 1454 acpi_ibm_volume_set(sc, val); 1455 break; 1456 1457 case IBM_EVENT_MUTE: 1458 /* Read the current value */ 1459 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1460 if (ACPI_FAILURE(status)) 1461 return; 1462 1463 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 1464 acpi_ibm_mute_set(sc, (val == 0)); 1465 break; 1466 1467 default: 1468 break; 1469 } 1470 ACPI_SERIAL_END(ibm); 1471} 1472 1473static void 1474acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context) 1475{ 1476 int event, arg, type; 1477 device_t dev = context; 1478 struct acpi_ibm_softc *sc = device_get_softc(dev); 1479 1480 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); 1481 1482 if (notify != 0x80) 1483 device_printf(dev, "Unknown notify\n"); 1484 1485 for (;;) { 1486 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event); 1487 if (event == 0) 1488 break; 1489 1490 type = (event >> 12) & 0xf; 1491 arg = event & 0xfff; 1492 switch (type) { 1493 case 1: 1494 if (!(sc->events_availmask & (1 << (arg - 1)))) { 1495 device_printf(dev, "Unknown key %d\n", arg); 1496 break; 1497 } 1498 1499 /* Execute event handler */ 1500 if (sc->handler_events & (1 << (arg - 1))) 1501 acpi_ibm_eventhandler(sc, (arg & 0xff)); 1502 1503 /* Notify devd(8) */ 1504 acpi_UserNotify("IBM", h, (arg & 0xff)); 1505 break; 1506 default: 1507 break; 1508 } 1509 } 1510} 1511