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("$FreeBSD$"); 30 31 /* 32 * Driver for extra ACPI-controlled gadgets found on 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 60 ACPI_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 #define ACPI_IBM_METHOD_MIC_LED 15 78 #define ACPI_IBM_METHOD_PRIVACYGUARD 16 79 80 /* Hotkeys/Buttons */ 81 #define IBM_RTC_HOTKEY1 0x64 82 #define IBM_RTC_MASK_HOME (1 << 0) 83 #define IBM_RTC_MASK_SEARCH (1 << 1) 84 #define IBM_RTC_MASK_MAIL (1 << 2) 85 #define IBM_RTC_MASK_WLAN (1 << 5) 86 #define IBM_RTC_HOTKEY2 0x65 87 #define IBM_RTC_MASK_THINKPAD (1 << 3) 88 #define IBM_RTC_MASK_ZOOM (1 << 5) 89 #define IBM_RTC_MASK_VIDEO (1 << 6) 90 #define IBM_RTC_MASK_HIBERNATE (1 << 7) 91 #define IBM_RTC_THINKLIGHT 0x66 92 #define IBM_RTC_MASK_THINKLIGHT (1 << 4) 93 #define IBM_RTC_SCREENEXPAND 0x67 94 #define IBM_RTC_MASK_SCREENEXPAND (1 << 5) 95 #define IBM_RTC_BRIGHTNESS 0x6c 96 #define IBM_RTC_MASK_BRIGHTNESS (1 << 5) 97 #define IBM_RTC_VOLUME 0x6e 98 #define IBM_RTC_MASK_VOLUME (1 << 7) 99 100 /* Embedded Controller registers */ 101 #define IBM_EC_BRIGHTNESS 0x31 102 #define IBM_EC_MASK_BRI 0x7 103 #define IBM_EC_VOLUME 0x30 104 #define IBM_EC_MASK_VOL 0xf 105 #define IBM_EC_MASK_MUTE (1 << 6) 106 #define IBM_EC_FANSTATUS 0x2F 107 #define IBM_EC_MASK_FANLEVEL 0x3f 108 #define IBM_EC_MASK_FANDISENGAGED (1 << 6) 109 #define IBM_EC_MASK_FANSTATUS (1 << 7) 110 #define IBM_EC_FANSPEED 0x84 111 112 /* CMOS Commands */ 113 #define IBM_CMOS_VOLUME_DOWN 0 114 #define IBM_CMOS_VOLUME_UP 1 115 #define IBM_CMOS_VOLUME_MUTE 2 116 #define IBM_CMOS_BRIGHTNESS_UP 4 117 #define IBM_CMOS_BRIGHTNESS_DOWN 5 118 119 /* ACPI methods */ 120 #define IBM_NAME_KEYLIGHT "KBLT" 121 #define IBM_NAME_WLAN_BT_GET "GBDC" 122 #define IBM_NAME_WLAN_BT_SET "SBDC" 123 #define IBM_NAME_MASK_BT (1 << 1) 124 #define IBM_NAME_MASK_WLAN (1 << 2) 125 #define IBM_NAME_THERMAL_GET "TMP7" 126 #define IBM_NAME_THERMAL_UPDT "UPDT" 127 #define IBM_NAME_PRIVACYGUARD_GET "GSSS" 128 #define IBM_NAME_PRIVACYGUARD_SET "SSSS" 129 130 #define IBM_NAME_EVENTS_STATUS_GET "DHKC" 131 #define IBM_NAME_EVENTS_MASK_GET "DHKN" 132 #define IBM_NAME_EVENTS_STATUS_SET "MHKC" 133 #define IBM_NAME_EVENTS_MASK_SET "MHKM" 134 #define IBM_NAME_EVENTS_GET "MHKP" 135 #define IBM_NAME_EVENTS_AVAILMASK "MHKA" 136 137 /* Event Code */ 138 #define IBM_EVENT_LCD_BACKLIGHT 0x03 139 #define IBM_EVENT_SUSPEND_TO_RAM 0x04 140 #define IBM_EVENT_BLUETOOTH 0x05 141 #define IBM_EVENT_SCREEN_EXPAND 0x07 142 #define IBM_EVENT_SUSPEND_TO_DISK 0x0c 143 #define IBM_EVENT_BRIGHTNESS_UP 0x10 144 #define IBM_EVENT_BRIGHTNESS_DOWN 0x11 145 #define IBM_EVENT_THINKLIGHT 0x12 146 #define IBM_EVENT_ZOOM 0x14 147 #define IBM_EVENT_VOLUME_UP 0x15 148 #define IBM_EVENT_VOLUME_DOWN 0x16 149 #define IBM_EVENT_MUTE 0x17 150 #define IBM_EVENT_ACCESS_IBM_BUTTON 0x18 151 152 /* Device-specific register flags */ 153 #define IBM_FLAG_PRIVACYGUARD_DEVICE_PRESENT 0x10000 154 #define IBM_FLAG_PRIVACYGUARD_ON 0x1 155 156 #define ABS(x) (((x) < 0)? -(x) : (x)) 157 158 struct acpi_ibm_softc { 159 device_t dev; 160 ACPI_HANDLE handle; 161 162 /* Embedded controller */ 163 device_t ec_dev; 164 ACPI_HANDLE ec_handle; 165 166 /* CMOS */ 167 ACPI_HANDLE cmos_handle; 168 169 /* Fan status */ 170 ACPI_HANDLE fan_handle; 171 int fan_levels; 172 173 /* Keylight commands and states */ 174 ACPI_HANDLE light_handle; 175 int light_cmd_on; 176 int light_cmd_off; 177 int light_val; 178 int light_get_supported; 179 int light_set_supported; 180 181 /* led(4) interface */ 182 struct cdev *led_dev; 183 int led_busy; 184 int led_state; 185 186 /* Mic led handle */ 187 ACPI_HANDLE mic_led_handle; 188 int mic_led_state; 189 190 int wlan_bt_flags; 191 int thermal_updt_supported; 192 193 unsigned int events_availmask; 194 unsigned int events_initialmask; 195 int events_mask_supported; 196 int events_enable; 197 198 unsigned int handler_events; 199 200 struct sysctl_ctx_list *sysctl_ctx; 201 struct sysctl_oid *sysctl_tree; 202 }; 203 204 static struct { 205 char *name; 206 int method; 207 char *description; 208 int flag_rdonly; 209 } acpi_ibm_sysctls[] = { 210 { 211 .name = "events", 212 .method = ACPI_IBM_METHOD_EVENTS, 213 .description = "ACPI events enable", 214 }, 215 { 216 .name = "eventmask", 217 .method = ACPI_IBM_METHOD_EVENTMASK, 218 .description = "ACPI eventmask", 219 }, 220 { 221 .name = "hotkey", 222 .method = ACPI_IBM_METHOD_HOTKEY, 223 .description = "Key Status", 224 .flag_rdonly = 1 225 }, 226 { 227 .name = "lcd_brightness", 228 .method = ACPI_IBM_METHOD_BRIGHTNESS, 229 .description = "LCD Brightness", 230 }, 231 { 232 .name = "volume", 233 .method = ACPI_IBM_METHOD_VOLUME, 234 .description = "Volume", 235 }, 236 { 237 .name = "mute", 238 .method = ACPI_IBM_METHOD_MUTE, 239 .description = "Mute", 240 }, 241 { 242 .name = "thinklight", 243 .method = ACPI_IBM_METHOD_THINKLIGHT, 244 .description = "Thinklight enable", 245 }, 246 { 247 .name = "bluetooth", 248 .method = ACPI_IBM_METHOD_BLUETOOTH, 249 .description = "Bluetooth enable", 250 }, 251 { 252 .name = "wlan", 253 .method = ACPI_IBM_METHOD_WLAN, 254 .description = "WLAN enable", 255 .flag_rdonly = 1 256 }, 257 { 258 .name = "fan_speed", 259 .method = ACPI_IBM_METHOD_FANSPEED, 260 .description = "Fan speed", 261 .flag_rdonly = 1 262 }, 263 { 264 .name = "fan_level", 265 .method = ACPI_IBM_METHOD_FANLEVEL, 266 .description = "Fan level", 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) 298 299 struct 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 }; 316 317 ACPI_SERIAL_DECL(ibm, "ThinkPad ACPI Extras"); 318 319 static int acpi_ibm_probe(device_t dev); 320 static int acpi_ibm_attach(device_t dev); 321 static int acpi_ibm_detach(device_t dev); 322 static int acpi_ibm_resume(device_t dev); 323 324 static void ibm_led(void *softc, int onoff); 325 static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused); 326 327 static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS); 328 static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method); 329 static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method); 330 static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val); 331 332 static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val); 333 static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS); 334 static int acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS); 335 static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context); 336 337 static int acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg); 338 static int acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg); 339 static int acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg); 340 static int acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg); 341 static int acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg); 342 static int acpi_ibm_privacyguard_get(struct acpi_ibm_softc *sc); 343 static ACPI_STATUS acpi_ibm_privacyguard_set(struct acpi_ibm_softc *sc, int arg); 344 static ACPI_STATUS acpi_ibm_privacyguard_acpi_call(struct acpi_ibm_softc *sc, bool write, int *arg); 345 346 static int acpi_status_to_errno(ACPI_STATUS status); 347 348 static 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 }; 357 358 static driver_t acpi_ibm_driver = { 359 "acpi_ibm", 360 acpi_ibm_methods, 361 sizeof(struct acpi_ibm_softc), 362 }; 363 364 static devclass_t acpi_ibm_devclass; 365 366 DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass, 0, 0); 367 MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1); 368 static char *ibm_ids[] = {"IBM0068", "LEN0068", "LEN0268", NULL}; 369 370 static int 371 acpi_status_to_errno(ACPI_STATUS status) 372 { 373 switch (status) { 374 case AE_OK: 375 return (0); 376 case AE_BAD_PARAMETER: 377 return (EINVAL); 378 default: 379 return (ENODEV); 380 } 381 } 382 383 static void 384 ibm_led(void *softc, int onoff) 385 { 386 struct acpi_ibm_softc *sc = softc; 387 388 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 389 390 if (sc->led_busy) 391 return; 392 393 sc->led_busy = 1; 394 sc->led_state = onoff; 395 396 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc); 397 } 398 399 static void 400 ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused) 401 { 402 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 403 404 ACPI_SERIAL_BEGIN(ibm); 405 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state); 406 ACPI_SERIAL_END(ibm); 407 408 sc->led_busy = 0; 409 } 410 411 static int 412 acpi_ibm_mic_led_set(struct acpi_ibm_softc *sc, int arg) 413 { 414 ACPI_OBJECT_LIST input; 415 ACPI_OBJECT params[1]; 416 ACPI_STATUS status; 417 418 if (arg < 0 || arg > 1) 419 return (EINVAL); 420 421 if (sc->mic_led_handle) { 422 params[0].Type = ACPI_TYPE_INTEGER; 423 params[0].Integer.Value = 0; 424 /* mic led: 0 off, 2 on */ 425 if (arg == 1) 426 params[0].Integer.Value = 2; 427 428 input.Pointer = params; 429 input.Count = 1; 430 431 status = AcpiEvaluateObject(sc->handle, "MMTS", &input, NULL); 432 if (ACPI_SUCCESS(status)) 433 sc->mic_led_state = arg; 434 return (status); 435 } 436 437 return (0); 438 } 439 440 static int 441 acpi_ibm_probe(device_t dev) 442 { 443 int rv; 444 445 if (acpi_disabled("ibm") || device_get_unit(dev) != 0) 446 return (ENXIO); 447 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids, NULL); 448 449 if (rv <= 0) 450 device_set_desc(dev, "ThinkPad ACPI Extras"); 451 452 return (rv); 453 } 454 455 static int 456 acpi_ibm_attach(device_t dev) 457 { 458 int i; 459 int hkey; 460 struct acpi_ibm_softc *sc; 461 char *maker, *product; 462 ACPI_OBJECT_LIST input; 463 ACPI_OBJECT params[1]; 464 ACPI_OBJECT out_obj; 465 ACPI_BUFFER result; 466 devclass_t ec_devclass; 467 468 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 469 470 sc = device_get_softc(dev); 471 sc->dev = dev; 472 sc->handle = acpi_get_handle(dev); 473 474 /* Look for the first embedded controller */ 475 if (!(ec_devclass = devclass_find ("acpi_ec"))) { 476 if (bootverbose) 477 device_printf(dev, "Couldn't find acpi_ec devclass\n"); 478 return (EINVAL); 479 } 480 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) { 481 if (bootverbose) 482 device_printf(dev, "Couldn't find acpi_ec device\n"); 483 return (EINVAL); 484 } 485 sc->ec_handle = acpi_get_handle(sc->ec_dev); 486 487 /* Get the sysctl tree */ 488 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 489 sc->sysctl_tree = device_get_sysctl_tree(dev); 490 491 /* Look for event mask and hook up the nodes */ 492 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle, 493 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask)); 494 495 if (sc->events_mask_supported) { 496 SYSCTL_ADD_UINT(sc->sysctl_ctx, 497 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "initialmask", 498 CTLFLAG_RD, &sc->events_initialmask, 0, 499 "Initial eventmask"); 500 501 if (ACPI_SUCCESS (acpi_GetInteger(sc->handle, "MHKV", &hkey))) { 502 device_printf(dev, "Firmware version is 0x%X\n", hkey); 503 switch (hkey >> 8) { 504 case 1: 505 /* The availmask is the bitmask of supported events */ 506 if (ACPI_FAILURE(acpi_GetInteger(sc->handle, 507 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask))) 508 sc->events_availmask = 0xffffffff; 509 break; 510 511 case 2: 512 result.Length = sizeof(out_obj); 513 result.Pointer = &out_obj; 514 params[0].Type = ACPI_TYPE_INTEGER; 515 params[0].Integer.Value = 1; 516 input.Pointer = params; 517 input.Count = 1; 518 519 sc->events_availmask = 0xffffffff; 520 521 if (ACPI_SUCCESS(AcpiEvaluateObject (sc->handle, 522 IBM_NAME_EVENTS_AVAILMASK, &input, &result))) 523 sc->events_availmask = out_obj.Integer.Value; 524 break; 525 default: 526 device_printf(dev, "Unknown firmware version 0x%x\n", hkey); 527 break; 528 } 529 } else 530 sc->events_availmask = 0xffffffff; 531 532 SYSCTL_ADD_UINT(sc->sysctl_ctx, 533 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 534 "availmask", CTLFLAG_RD, 535 &sc->events_availmask, 0, "Mask of supported events"); 536 } 537 538 /* Hook up proc nodes */ 539 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 540 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method)) 541 continue; 542 543 if (acpi_ibm_sysctls[i].flag_rdonly != 0) { 544 SYSCTL_ADD_PROC(sc->sysctl_ctx, 545 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 546 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RD, 547 sc, i, acpi_ibm_sysctl, "I", 548 acpi_ibm_sysctls[i].description); 549 } else { 550 SYSCTL_ADD_PROC(sc->sysctl_ctx, 551 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 552 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RW, 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, sc, 0, acpi_ibm_thermal_sysctl, 563 "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, 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 } 599 600 nosmbios: 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 } 611 612 static int 613 acpi_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 } 632 633 static int 634 acpi_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 } 658 659 static int 660 acpi_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 } 686 687 static int 688 acpi_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); 712 713 out: 714 ACPI_SERIAL_END(ibm); 715 return (error); 716 } 717 718 static int 719 acpi_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 val = val_ec & IBM_EC_MASK_FANLEVEL; 831 } 832 break; 833 834 case ACPI_IBM_METHOD_FANSTATUS: 835 if (!sc->fan_handle) { 836 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 837 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS; 838 } else 839 val = -1; 840 break; 841 842 case ACPI_IBM_METHOD_MIC_LED: 843 if (sc->mic_led_handle) 844 return sc->mic_led_state; 845 else 846 val = -1; 847 break; 848 849 case ACPI_IBM_METHOD_PRIVACYGUARD: 850 val = acpi_ibm_privacyguard_get(sc); 851 break; 852 } 853 854 return (val); 855 } 856 857 static int 858 acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg) 859 { 860 int val; 861 UINT64 val_ec; 862 ACPI_STATUS status; 863 864 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 865 ACPI_SERIAL_ASSERT(ibm); 866 867 switch (method) { 868 case ACPI_IBM_METHOD_EVENTS: 869 if (arg < 0 || arg > 1) 870 return (EINVAL); 871 872 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg); 873 if (ACPI_FAILURE(status)) 874 return (status); 875 if (sc->events_mask_supported) 876 return acpi_ibm_eventmask_set(sc, sc->events_availmask); 877 break; 878 879 case ACPI_IBM_METHOD_EVENTMASK: 880 if (sc->events_mask_supported) 881 return acpi_ibm_eventmask_set(sc, arg); 882 break; 883 884 case ACPI_IBM_METHOD_BRIGHTNESS: 885 return acpi_ibm_brightness_set(sc, arg); 886 break; 887 888 case ACPI_IBM_METHOD_VOLUME: 889 return acpi_ibm_volume_set(sc, arg); 890 break; 891 892 case ACPI_IBM_METHOD_MUTE: 893 return acpi_ibm_mute_set(sc, arg); 894 break; 895 896 case ACPI_IBM_METHOD_MIC_LED: 897 return acpi_ibm_mic_led_set(sc, arg); 898 break; 899 900 case ACPI_IBM_METHOD_THINKLIGHT: 901 return acpi_ibm_thinklight_set(sc, arg); 902 break; 903 904 case ACPI_IBM_METHOD_BLUETOOTH: 905 return acpi_ibm_bluetooth_set(sc, arg); 906 break; 907 908 case ACPI_IBM_METHOD_PRIVACYGUARD: 909 return (acpi_status_to_errno(acpi_ibm_privacyguard_set(sc, arg))); 910 break; 911 912 case ACPI_IBM_METHOD_FANLEVEL: 913 if (arg < 0 || arg > 7) 914 return (EINVAL); 915 916 if (!sc->fan_handle) { 917 /* Read the current fanstatus */ 918 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 919 val = val_ec & (~IBM_EC_MASK_FANLEVEL); 920 921 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1); 922 } 923 break; 924 925 case ACPI_IBM_METHOD_FANSTATUS: 926 if (arg < 0 || arg > 1) 927 return (EINVAL); 928 929 if (!sc->fan_handle) { 930 /* Read the current fanstatus */ 931 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 932 933 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, 934 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1); 935 } 936 break; 937 } 938 939 return (0); 940 } 941 942 static int 943 acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method) 944 { 945 int dummy; 946 ACPI_OBJECT_TYPE cmos_t; 947 ACPI_HANDLE ledb_handle; 948 949 switch (method) { 950 case ACPI_IBM_METHOD_EVENTS: 951 return (TRUE); 952 953 case ACPI_IBM_METHOD_EVENTMASK: 954 return (sc->events_mask_supported); 955 956 case ACPI_IBM_METHOD_HOTKEY: 957 case ACPI_IBM_METHOD_BRIGHTNESS: 958 case ACPI_IBM_METHOD_VOLUME: 959 case ACPI_IBM_METHOD_MUTE: 960 /* EC is required here, which was already checked before */ 961 return (TRUE); 962 963 case ACPI_IBM_METHOD_MIC_LED: 964 if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "MMTS", &sc->mic_led_handle))) 965 { 966 /* Turn off mic led by default */ 967 acpi_ibm_mic_led_set(sc, 0); 968 return (TRUE); 969 } else 970 sc->mic_led_handle = NULL; 971 return (FALSE); 972 973 case ACPI_IBM_METHOD_THINKLIGHT: 974 sc->cmos_handle = NULL; 975 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger( 976 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val)); 977 978 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) || 979 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) || 980 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) && 981 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) && 982 cmos_t == ACPI_TYPE_METHOD) { 983 sc->light_cmd_on = 0x0c; 984 sc->light_cmd_off = 0x0d; 985 sc->cmos_handle = sc->light_handle; 986 } 987 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) { 988 sc->light_cmd_on = 1; 989 sc->light_cmd_off = 0; 990 } else 991 sc->light_handle = NULL; 992 993 sc->light_set_supported = (sc->light_handle && 994 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle))); 995 996 if (sc->light_get_supported) 997 return (TRUE); 998 999 if (sc->light_set_supported) { 1000 sc->light_val = 0; 1001 return (TRUE); 1002 } 1003 1004 return (FALSE); 1005 1006 case ACPI_IBM_METHOD_BLUETOOTH: 1007 case ACPI_IBM_METHOD_WLAN: 1008 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy))) 1009 return (TRUE); 1010 return (FALSE); 1011 1012 case ACPI_IBM_METHOD_FANSPEED: 1013 /* 1014 * Some models report the fan speed in levels from 0-7 1015 * Newer models report it contiguously 1016 */ 1017 sc->fan_levels = 1018 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) || 1019 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle))); 1020 return (TRUE); 1021 1022 case ACPI_IBM_METHOD_FANLEVEL: 1023 case ACPI_IBM_METHOD_FANSTATUS: 1024 /* 1025 * Fan status is only supported on those models, 1026 * which report fan RPM contiguously, not in levels 1027 */ 1028 if (sc->fan_levels) 1029 return (FALSE); 1030 return (TRUE); 1031 1032 case ACPI_IBM_METHOD_THERMAL: 1033 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) { 1034 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy)); 1035 return (TRUE); 1036 } 1037 return (FALSE); 1038 1039 case ACPI_IBM_METHOD_HANDLEREVENTS: 1040 return (TRUE); 1041 1042 case ACPI_IBM_METHOD_PRIVACYGUARD: 1043 return (acpi_ibm_privacyguard_get(sc) != -1); 1044 } 1045 return (FALSE); 1046 } 1047 1048 static int 1049 acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS) 1050 { 1051 struct acpi_ibm_softc *sc; 1052 int error = 0; 1053 char temp_cmd[] = "TMP0"; 1054 int temp[8]; 1055 1056 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1057 1058 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 1059 1060 ACPI_SERIAL_BEGIN(ibm); 1061 1062 for (int i = 0; i < 8; ++i) { 1063 temp_cmd[3] = '0' + i; 1064 1065 /* 1066 * The TMPx methods seem to return +/- 128 or 0 1067 * when the respecting sensor is not available 1068 */ 1069 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 1070 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) 1071 temp[i] = -1; 1072 else if (sc->thermal_updt_supported) 1073 /* Temperature is reported in tenth of Kelvin */ 1074 temp[i] = (temp[i] - 2731 + 5) / 10; 1075 } 1076 1077 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req); 1078 1079 ACPI_SERIAL_END(ibm); 1080 return (error); 1081 } 1082 1083 static int 1084 acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS) 1085 { 1086 struct acpi_ibm_softc *sc; 1087 int error = 0; 1088 struct sbuf sb; 1089 char *cp, *ep; 1090 int l, val; 1091 unsigned int handler_events; 1092 char temp[128]; 1093 1094 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1095 1096 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 1097 1098 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 1099 return (ENOMEM); 1100 1101 ACPI_SERIAL_BEGIN(ibm); 1102 1103 /* Get old values if this is a get request. */ 1104 if (req->newptr == NULL) { 1105 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++) 1106 if (sc->handler_events & (1 << i)) 1107 sbuf_printf(&sb, "0x%02x ", i + 1); 1108 if (sbuf_len(&sb) == 0) 1109 sbuf_printf(&sb, "NONE"); 1110 } 1111 1112 sbuf_trim(&sb); 1113 sbuf_finish(&sb); 1114 strlcpy(temp, sbuf_data(&sb), sizeof(temp)); 1115 sbuf_delete(&sb); 1116 1117 error = sysctl_handle_string(oidp, temp, sizeof(temp), req); 1118 1119 /* Check for error or no change */ 1120 if (error != 0 || req->newptr == NULL) 1121 goto out; 1122 1123 /* If the user is setting a string, parse it. */ 1124 handler_events = 0; 1125 cp = temp; 1126 while (*cp) { 1127 if (isspace(*cp)) { 1128 cp++; 1129 continue; 1130 } 1131 1132 ep = cp; 1133 1134 while (*ep && !isspace(*ep)) 1135 ep++; 1136 1137 l = ep - cp; 1138 if (l == 0) 1139 break; 1140 1141 if (strncmp(cp, "NONE", 4) == 0) { 1142 cp = ep; 1143 continue; 1144 } 1145 1146 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x')) 1147 val = strtoul(cp, &ep, 16); 1148 else 1149 val = strtoul(cp, &ep, 10); 1150 1151 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) { 1152 cp[l] = '\0'; 1153 device_printf(sc->dev, "invalid event code: %s\n", cp); 1154 error = EINVAL; 1155 goto out; 1156 } 1157 1158 handler_events |= 1 << (val - 1); 1159 1160 cp = ep; 1161 } 1162 1163 sc->handler_events = handler_events; 1164 out: 1165 ACPI_SERIAL_END(ibm); 1166 return (error); 1167 } 1168 1169 static int 1170 acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg) 1171 { 1172 int val, step; 1173 UINT64 val_ec; 1174 ACPI_OBJECT Arg; 1175 ACPI_OBJECT_LIST Args; 1176 ACPI_STATUS status; 1177 1178 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1179 ACPI_SERIAL_ASSERT(ibm); 1180 1181 if (arg < 0 || arg > 7) 1182 return (EINVAL); 1183 1184 /* Read the current brightness */ 1185 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 1186 if (ACPI_FAILURE(status)) 1187 return (status); 1188 1189 if (sc->cmos_handle) { 1190 val = val_ec & IBM_EC_MASK_BRI; 1191 1192 Args.Count = 1; 1193 Args.Pointer = &Arg; 1194 Arg.Type = ACPI_TYPE_INTEGER; 1195 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : 1196 IBM_CMOS_BRIGHTNESS_DOWN; 1197 1198 step = (arg > val) ? 1 : -1; 1199 for (int i = val; i != arg; i += step) { 1200 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1201 &Args, NULL); 1202 if (ACPI_FAILURE(status)) { 1203 /* Record the last value */ 1204 if (i != val) { 1205 ACPI_EC_WRITE(sc->ec_dev, 1206 IBM_EC_BRIGHTNESS, i - step, 1); 1207 } 1208 return (status); 1209 } 1210 } 1211 } 1212 1213 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1); 1214 } 1215 1216 static int 1217 acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg) 1218 { 1219 int val; 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 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : 1228 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT); 1229 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val); 1230 } 1231 1232 static int 1233 acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg) 1234 { 1235 ACPI_OBJECT Arg; 1236 ACPI_OBJECT_LIST Args; 1237 ACPI_STATUS status; 1238 1239 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1240 ACPI_SERIAL_ASSERT(ibm); 1241 1242 if (arg < 0 || arg > 1) 1243 return (EINVAL); 1244 1245 if (sc->light_set_supported) { 1246 Args.Count = 1; 1247 Args.Pointer = &Arg; 1248 Arg.Type = ACPI_TYPE_INTEGER; 1249 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off; 1250 1251 status = AcpiEvaluateObject(sc->light_handle, NULL, 1252 &Args, NULL); 1253 if (ACPI_SUCCESS(status)) 1254 sc->light_val = arg; 1255 return (status); 1256 } 1257 1258 return (0); 1259 } 1260 1261 /* 1262 * Helper function to make a get or set ACPI call to the PrivacyGuard handle. 1263 * Only meant to be used internally by the get/set functions below. 1264 */ 1265 static ACPI_STATUS 1266 acpi_ibm_privacyguard_acpi_call(struct acpi_ibm_softc *sc, bool write, int *arg) 1267 { 1268 ACPI_OBJECT Arg; 1269 ACPI_OBJECT_LIST Args; 1270 ACPI_STATUS status; 1271 ACPI_OBJECT out_obj; 1272 ACPI_BUFFER result; 1273 1274 Arg.Type = ACPI_TYPE_INTEGER; 1275 Arg.Integer.Value = (write ? *arg : 0); 1276 Args.Count = 1; 1277 Args.Pointer = &Arg; 1278 result.Length = sizeof(out_obj); 1279 result.Pointer = &out_obj; 1280 1281 status = AcpiEvaluateObject(sc->handle, 1282 (write ? IBM_NAME_PRIVACYGUARD_SET : IBM_NAME_PRIVACYGUARD_GET), 1283 &Args, &result); 1284 if (ACPI_SUCCESS(status) && !write) 1285 *arg = out_obj.Integer.Value; 1286 1287 return (status); 1288 } 1289 1290 /* 1291 * Returns -1 if the device is not present. 1292 */ 1293 static int 1294 acpi_ibm_privacyguard_get(struct acpi_ibm_softc *sc) 1295 { 1296 ACPI_STATUS status; 1297 int val; 1298 1299 status = acpi_ibm_privacyguard_acpi_call(sc, false, &val); 1300 if (ACPI_SUCCESS(status) && 1301 (val & IBM_FLAG_PRIVACYGUARD_DEVICE_PRESENT)) 1302 return (val & IBM_FLAG_PRIVACYGUARD_ON); 1303 1304 return (-1); 1305 } 1306 1307 static ACPI_STATUS 1308 acpi_ibm_privacyguard_set(struct acpi_ibm_softc *sc, int arg) 1309 { 1310 if (arg < 0 || arg > 1) 1311 return (AE_BAD_PARAMETER); 1312 1313 return (acpi_ibm_privacyguard_acpi_call(sc, true, &arg)); 1314 } 1315 1316 static int 1317 acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg) 1318 { 1319 int val, step; 1320 UINT64 val_ec; 1321 ACPI_OBJECT Arg; 1322 ACPI_OBJECT_LIST Args; 1323 ACPI_STATUS status; 1324 1325 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1326 ACPI_SERIAL_ASSERT(ibm); 1327 1328 if (arg < 0 || arg > 14) 1329 return (EINVAL); 1330 1331 /* Read the current volume */ 1332 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1333 if (ACPI_FAILURE(status)) 1334 return (status); 1335 1336 if (sc->cmos_handle) { 1337 val = val_ec & IBM_EC_MASK_VOL; 1338 1339 Args.Count = 1; 1340 Args.Pointer = &Arg; 1341 Arg.Type = ACPI_TYPE_INTEGER; 1342 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : 1343 IBM_CMOS_VOLUME_DOWN; 1344 1345 step = (arg > val) ? 1 : -1; 1346 for (int i = val; i != arg; i += step) { 1347 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1348 &Args, NULL); 1349 if (ACPI_FAILURE(status)) { 1350 /* Record the last value */ 1351 if (i != val) { 1352 val_ec = i - step + 1353 (val_ec & (~IBM_EC_MASK_VOL)); 1354 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, 1355 val_ec, 1); 1356 } 1357 return (status); 1358 } 1359 } 1360 } 1361 1362 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL)); 1363 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1364 } 1365 1366 static int 1367 acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg) 1368 { 1369 UINT64 val_ec; 1370 ACPI_OBJECT Arg; 1371 ACPI_OBJECT_LIST Args; 1372 ACPI_STATUS status; 1373 1374 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1375 ACPI_SERIAL_ASSERT(ibm); 1376 1377 if (arg < 0 || arg > 1) 1378 return (EINVAL); 1379 1380 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1381 if (ACPI_FAILURE(status)) 1382 return (status); 1383 1384 if (sc->cmos_handle) { 1385 Args.Count = 1; 1386 Args.Pointer = &Arg; 1387 Arg.Type = ACPI_TYPE_INTEGER; 1388 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE; 1389 1390 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 1391 if (ACPI_FAILURE(status)) 1392 return (status); 1393 } 1394 1395 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE : 1396 val_ec & (~IBM_EC_MASK_MUTE); 1397 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1398 } 1399 1400 static void 1401 acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg) 1402 { 1403 int val; 1404 UINT64 val_ec; 1405 ACPI_STATUS status; 1406 1407 ACPI_SERIAL_BEGIN(ibm); 1408 switch (arg) { 1409 case IBM_EVENT_SUSPEND_TO_RAM: 1410 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 1411 break; 1412 1413 case IBM_EVENT_BLUETOOTH: 1414 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0)); 1415 break; 1416 1417 case IBM_EVENT_BRIGHTNESS_UP: 1418 case IBM_EVENT_BRIGHTNESS_DOWN: 1419 /* Read the current brightness */ 1420 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, 1421 &val_ec, 1); 1422 if (ACPI_FAILURE(status)) 1423 return; 1424 1425 val = val_ec & IBM_EC_MASK_BRI; 1426 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1; 1427 acpi_ibm_brightness_set(sc, val); 1428 break; 1429 1430 case IBM_EVENT_THINKLIGHT: 1431 acpi_ibm_thinklight_set(sc, (sc->light_val == 0)); 1432 break; 1433 1434 case IBM_EVENT_VOLUME_UP: 1435 case IBM_EVENT_VOLUME_DOWN: 1436 /* Read the current volume */ 1437 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1438 if (ACPI_FAILURE(status)) 1439 return; 1440 1441 val = val_ec & IBM_EC_MASK_VOL; 1442 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1; 1443 acpi_ibm_volume_set(sc, val); 1444 break; 1445 1446 case IBM_EVENT_MUTE: 1447 /* Read the current value */ 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_MUTE) == IBM_EC_MASK_MUTE); 1453 acpi_ibm_mute_set(sc, (val == 0)); 1454 break; 1455 1456 default: 1457 break; 1458 } 1459 ACPI_SERIAL_END(ibm); 1460 } 1461 1462 static void 1463 acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context) 1464 { 1465 int event, arg, type; 1466 device_t dev = context; 1467 struct acpi_ibm_softc *sc = device_get_softc(dev); 1468 1469 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); 1470 1471 if (notify != 0x80) 1472 device_printf(dev, "Unknown notify\n"); 1473 1474 for (;;) { 1475 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event); 1476 if (event == 0) 1477 break; 1478 1479 type = (event >> 12) & 0xf; 1480 arg = event & 0xfff; 1481 switch (type) { 1482 case 1: 1483 if (!(sc->events_availmask & (1 << (arg - 1)))) { 1484 device_printf(dev, "Unknown key %d\n", arg); 1485 break; 1486 } 1487 1488 /* Execute event handler */ 1489 if (sc->handler_events & (1 << (arg - 1))) 1490 acpi_ibm_eventhandler(sc, (arg & 0xff)); 1491 1492 /* Notify devd(8) */ 1493 acpi_UserNotify("IBM", h, (arg & 0xff)); 1494 break; 1495 default: 1496 break; 1497 } 1498 } 1499 } 1500