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, 367 0, 0); 368 MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1); 369 static char *ibm_ids[] = {"IBM0068", "LEN0068", "LEN0268", NULL}; 370 371 static int 372 acpi_status_to_errno(ACPI_STATUS status) 373 { 374 switch (status) { 375 case AE_OK: 376 return (0); 377 case AE_BAD_PARAMETER: 378 return (EINVAL); 379 default: 380 return (ENODEV); 381 } 382 } 383 384 static void 385 ibm_led(void *softc, int onoff) 386 { 387 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc; 388 389 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 390 391 if (sc->led_busy) 392 return; 393 394 sc->led_busy = 1; 395 sc->led_state = onoff; 396 397 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc); 398 } 399 400 static void 401 ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused) 402 { 403 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 404 405 ACPI_SERIAL_BEGIN(ibm); 406 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state); 407 ACPI_SERIAL_END(ibm); 408 409 sc->led_busy = 0; 410 } 411 412 static int 413 acpi_ibm_mic_led_set (struct acpi_ibm_softc *sc, int arg) 414 { 415 ACPI_OBJECT_LIST input; 416 ACPI_OBJECT params[1]; 417 ACPI_STATUS status; 418 419 if (arg < 0 || arg > 1) 420 return (EINVAL); 421 422 if (sc->mic_led_handle) { 423 params[0].Type = ACPI_TYPE_INTEGER; 424 params[0].Integer.Value = 0; 425 /* mic led: 0 off, 2 on */ 426 if (arg == 1) 427 params[0].Integer.Value = 2; 428 429 input.Pointer = params; 430 input.Count = 1; 431 432 status = AcpiEvaluateObject (sc->handle, "MMTS", &input, NULL); 433 if (ACPI_SUCCESS(status)) 434 sc->mic_led_state = arg; 435 return(status); 436 } 437 438 return (0); 439 } 440 441 static int 442 acpi_ibm_probe(device_t dev) 443 { 444 int rv; 445 446 if (acpi_disabled("ibm") || 447 device_get_unit(dev) != 0) 448 return (ENXIO); 449 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids, NULL); 450 451 if (rv <= 0) 452 device_set_desc(dev, "ThinkPad ACPI Extras"); 453 454 return (rv); 455 } 456 457 static int 458 acpi_ibm_attach(device_t dev) 459 { 460 int i; 461 int hkey; 462 struct acpi_ibm_softc *sc; 463 char *maker, *product; 464 ACPI_OBJECT_LIST input; 465 ACPI_OBJECT params[1]; 466 ACPI_OBJECT out_obj; 467 ACPI_BUFFER result; 468 devclass_t ec_devclass; 469 470 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 471 472 sc = device_get_softc(dev); 473 sc->dev = dev; 474 sc->handle = acpi_get_handle(dev); 475 476 /* Look for the first embedded controller */ 477 if (!(ec_devclass = devclass_find ("acpi_ec"))) { 478 if (bootverbose) 479 device_printf(dev, "Couldn't find acpi_ec devclass\n"); 480 return (EINVAL); 481 } 482 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) { 483 if (bootverbose) 484 device_printf(dev, "Couldn't find acpi_ec device\n"); 485 return (EINVAL); 486 } 487 sc->ec_handle = acpi_get_handle(sc->ec_dev); 488 489 /* Get the sysctl tree */ 490 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 491 sc->sysctl_tree = device_get_sysctl_tree(dev); 492 493 /* Look for event mask and hook up the nodes */ 494 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle, 495 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask)); 496 497 if (sc->events_mask_supported) { 498 SYSCTL_ADD_UINT(sc->sysctl_ctx, 499 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 500 "initialmask", CTLFLAG_RD, 501 &sc->events_initialmask, 0, "Initial eventmask"); 502 503 if (ACPI_SUCCESS (acpi_GetInteger(sc->handle, "MHKV", &hkey))) { 504 device_printf(dev, "Firmware version is 0x%X\n", hkey); 505 switch(hkey >> 8) 506 { 507 case 1: 508 /* The availmask is the bitmask of supported events */ 509 if (ACPI_FAILURE(acpi_GetInteger(sc->handle, 510 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask))) 511 sc->events_availmask = 0xffffffff; 512 break; 513 514 case 2: 515 result.Length = sizeof(out_obj); 516 result.Pointer = &out_obj; 517 params[0].Type = ACPI_TYPE_INTEGER; 518 params[0].Integer.Value = 1; 519 input.Pointer = params; 520 input.Count = 1; 521 522 sc->events_availmask = 0xffffffff; 523 524 if (ACPI_SUCCESS(AcpiEvaluateObject (sc->handle, 525 IBM_NAME_EVENTS_AVAILMASK, &input, &result))) 526 sc->events_availmask = out_obj.Integer.Value; 527 break; 528 default: 529 device_printf(dev, "Unknown firmware version 0x%x\n", hkey); 530 break; 531 } 532 } else 533 sc->events_availmask = 0xffffffff; 534 535 SYSCTL_ADD_UINT(sc->sysctl_ctx, 536 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 537 "availmask", CTLFLAG_RD, 538 &sc->events_availmask, 0, "Mask of supported events"); 539 } 540 541 /* Hook up proc nodes */ 542 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 543 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method)) 544 continue; 545 546 if (acpi_ibm_sysctls[i].flag_rdonly != 0) { 547 SYSCTL_ADD_PROC(sc->sysctl_ctx, 548 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 549 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RD, 550 sc, i, acpi_ibm_sysctl, "I", 551 acpi_ibm_sysctls[i].description); 552 } else { 553 SYSCTL_ADD_PROC(sc->sysctl_ctx, 554 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 555 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RW, 556 sc, i, acpi_ibm_sysctl, "I", 557 acpi_ibm_sysctls[i].description); 558 } 559 } 560 561 /* Hook up thermal node */ 562 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) { 563 SYSCTL_ADD_PROC(sc->sysctl_ctx, 564 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 565 "thermal", CTLTYPE_INT | CTLFLAG_RD, 566 sc, 0, acpi_ibm_thermal_sysctl, "I", 567 "Thermal zones"); 568 } 569 570 /* Hook up handlerevents node */ 571 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_HANDLEREVENTS)) { 572 SYSCTL_ADD_PROC(sc->sysctl_ctx, 573 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 574 "handlerevents", CTLTYPE_STRING | CTLFLAG_RW, 575 sc, 0, acpi_ibm_handlerevents_sysctl, "I", 576 "devd(8) events handled by acpi_ibm"); 577 } 578 579 /* Handle notifies */ 580 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 581 acpi_ibm_notify, dev); 582 583 /* Hook up light to led(4) */ 584 if (sc->light_set_supported) 585 sc->led_dev = led_create_state(ibm_led, sc, "thinklight", 586 (sc->light_val ? 1 : 0)); 587 588 /* Enable per-model events. */ 589 maker = kern_getenv("smbios.system.maker"); 590 product = kern_getenv("smbios.system.product"); 591 if (maker == NULL || product == NULL) 592 goto nosmbios; 593 594 for (i = 0; i < nitems(acpi_ibm_models); i++) { 595 if (strcmp(maker, acpi_ibm_models[i].maker) == 0 && 596 strcmp(product, acpi_ibm_models[i].product) == 0) { 597 ACPI_SERIAL_BEGIN(ibm); 598 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, 599 acpi_ibm_models[i].eventmask); 600 ACPI_SERIAL_END(ibm); 601 } 602 } 603 604 nosmbios: 605 freeenv(maker); 606 freeenv(product); 607 608 /* Enable events by default. */ 609 ACPI_SERIAL_BEGIN(ibm); 610 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 1); 611 ACPI_SERIAL_END(ibm); 612 613 614 return (0); 615 } 616 617 static int 618 acpi_ibm_detach(device_t dev) 619 { 620 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 621 622 struct acpi_ibm_softc *sc = device_get_softc(dev); 623 624 /* Disable events and restore eventmask */ 625 ACPI_SERIAL_BEGIN(ibm); 626 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0); 627 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask); 628 ACPI_SERIAL_END(ibm); 629 630 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify); 631 632 if (sc->led_dev != NULL) 633 led_destroy(sc->led_dev); 634 635 return (0); 636 } 637 638 static int 639 acpi_ibm_resume(device_t dev) 640 { 641 struct acpi_ibm_softc *sc = device_get_softc(dev); 642 643 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 644 645 ACPI_SERIAL_BEGIN(ibm); 646 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 647 int val; 648 649 val = acpi_ibm_sysctl_get(sc, i); 650 651 if (acpi_ibm_sysctls[i].flag_rdonly != 0) 652 continue; 653 654 acpi_ibm_sysctl_set(sc, i, val); 655 } 656 ACPI_SERIAL_END(ibm); 657 658 /* The mic led does not turn back on when sysctl_set is called in the above loop */ 659 acpi_ibm_mic_led_set(sc, sc->mic_led_state); 660 661 return (0); 662 } 663 664 static int 665 acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val) 666 { 667 ACPI_OBJECT arg[2]; 668 ACPI_OBJECT_LIST args; 669 ACPI_STATUS status; 670 671 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 672 ACPI_SERIAL_ASSERT(ibm); 673 674 args.Count = 2; 675 args.Pointer = arg; 676 arg[0].Type = ACPI_TYPE_INTEGER; 677 arg[1].Type = ACPI_TYPE_INTEGER; 678 679 for (int i = 0; i < 32; ++i) { 680 arg[0].Integer.Value = i+1; 681 arg[1].Integer.Value = (((1 << i) & val) != 0); 682 status = AcpiEvaluateObject(sc->handle, 683 IBM_NAME_EVENTS_MASK_SET, &args, NULL); 684 685 if (ACPI_FAILURE(status)) 686 return (status); 687 } 688 689 return (0); 690 } 691 692 static int 693 acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS) 694 { 695 struct acpi_ibm_softc *sc; 696 int arg; 697 int error = 0; 698 int function; 699 int method; 700 701 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 702 703 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 704 function = oidp->oid_arg2; 705 method = acpi_ibm_sysctls[function].method; 706 707 ACPI_SERIAL_BEGIN(ibm); 708 arg = acpi_ibm_sysctl_get(sc, method); 709 error = sysctl_handle_int(oidp, &arg, 0, req); 710 711 /* Sanity check */ 712 if (error != 0 || req->newptr == NULL) 713 goto out; 714 715 /* Update */ 716 error = acpi_ibm_sysctl_set(sc, method, arg); 717 718 out: 719 ACPI_SERIAL_END(ibm); 720 return (error); 721 } 722 723 static int 724 acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method) 725 { 726 UINT64 val_ec; 727 int val = 0, key; 728 729 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 730 ACPI_SERIAL_ASSERT(ibm); 731 732 switch (method) { 733 case ACPI_IBM_METHOD_EVENTS: 734 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val); 735 break; 736 737 case ACPI_IBM_METHOD_EVENTMASK: 738 if (sc->events_mask_supported) 739 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val); 740 break; 741 742 case ACPI_IBM_METHOD_HOTKEY: 743 /* 744 * Construct the hotkey as a bitmask as illustrated below. 745 * Note that whenever a key was pressed, the respecting bit 746 * toggles and nothing else changes. 747 * +--+--+-+-+-+-+-+-+-+-+-+-+ 748 * |11|10|9|8|7|6|5|4|3|2|1|0| 749 * +--+--+-+-+-+-+-+-+-+-+-+-+ 750 * | | | | | | | | | | | | 751 * | | | | | | | | | | | +- Home Button 752 * | | | | | | | | | | +--- Search Button 753 * | | | | | | | | | +----- Mail Button 754 * | | | | | | | | +------- Thinkpad Button 755 * | | | | | | | +--------- Zoom (Fn + Space) 756 * | | | | | | +----------- WLAN Button 757 * | | | | | +------------- Video Button 758 * | | | | +--------------- Hibernate Button 759 * | | | +----------------- Thinklight Button 760 * | | +------------------- Screen expand (Fn + F8) 761 * | +--------------------- Brightness 762 * +------------------------ Volume/Mute 763 */ 764 key = rtcin(IBM_RTC_HOTKEY1); 765 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key; 766 key = rtcin(IBM_RTC_HOTKEY2); 767 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key; 768 val |= (IBM_RTC_MASK_ZOOM & key) >> 1; 769 key = rtcin(IBM_RTC_THINKLIGHT); 770 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 771 key = rtcin(IBM_RTC_SCREENEXPAND); 772 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 773 key = rtcin(IBM_RTC_BRIGHTNESS); 774 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5; 775 key = rtcin(IBM_RTC_VOLUME); 776 val |= (IBM_RTC_MASK_VOLUME & key) << 4; 777 break; 778 779 case ACPI_IBM_METHOD_BRIGHTNESS: 780 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 781 val = val_ec & IBM_EC_MASK_BRI; 782 break; 783 784 case ACPI_IBM_METHOD_VOLUME: 785 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 786 val = val_ec & IBM_EC_MASK_VOL; 787 break; 788 789 case ACPI_IBM_METHOD_MUTE: 790 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 791 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 792 break; 793 794 case ACPI_IBM_METHOD_THINKLIGHT: 795 if (sc->light_get_supported) 796 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val); 797 else 798 val = sc->light_val; 799 break; 800 801 case ACPI_IBM_METHOD_BLUETOOTH: 802 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 803 sc->wlan_bt_flags = val; 804 val = ((val & IBM_NAME_MASK_BT) != 0); 805 break; 806 807 case ACPI_IBM_METHOD_WLAN: 808 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 809 sc->wlan_bt_flags = val; 810 val = ((val & IBM_NAME_MASK_WLAN) != 0); 811 break; 812 813 case ACPI_IBM_METHOD_FANSPEED: 814 if (sc->fan_handle) { 815 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val))) 816 val = -1; 817 } 818 else { 819 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2); 820 val = val_ec; 821 } 822 break; 823 824 case ACPI_IBM_METHOD_FANLEVEL: 825 /* 826 * The IBM_EC_FANSTATUS register works as follows: 827 * Bit 0-5 indicate the level at which the fan operates. Only 828 * values between 0 and 7 have an effect. Everything 829 * above 7 is treated the same as level 7 830 * Bit 6 overrides the fan speed limit if set to 1 831 * Bit 7 indicates at which mode the fan operates: 832 * manual (0) or automatic (1) 833 */ 834 if (!sc->fan_handle) { 835 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 836 val = val_ec & IBM_EC_MASK_FANLEVEL; 837 } 838 break; 839 840 case ACPI_IBM_METHOD_FANSTATUS: 841 if (!sc->fan_handle) { 842 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 843 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS; 844 } 845 else 846 val = -1; 847 break; 848 case ACPI_IBM_METHOD_MIC_LED: 849 if (sc->mic_led_handle) 850 return sc->mic_led_state; 851 else 852 val = -1; 853 break; 854 855 case ACPI_IBM_METHOD_PRIVACYGUARD: 856 val = acpi_ibm_privacyguard_get(sc); 857 break; 858 859 } 860 861 return (val); 862 } 863 864 static int 865 acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg) 866 { 867 int val; 868 UINT64 val_ec; 869 ACPI_STATUS status; 870 871 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 872 ACPI_SERIAL_ASSERT(ibm); 873 874 switch (method) { 875 case ACPI_IBM_METHOD_EVENTS: 876 if (arg < 0 || arg > 1) 877 return (EINVAL); 878 879 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg); 880 if (ACPI_FAILURE(status)) 881 return (status); 882 if (sc->events_mask_supported) 883 return acpi_ibm_eventmask_set(sc, sc->events_availmask); 884 break; 885 886 case ACPI_IBM_METHOD_EVENTMASK: 887 if (sc->events_mask_supported) 888 return acpi_ibm_eventmask_set(sc, arg); 889 break; 890 891 case ACPI_IBM_METHOD_BRIGHTNESS: 892 return acpi_ibm_brightness_set(sc, arg); 893 break; 894 895 case ACPI_IBM_METHOD_VOLUME: 896 return acpi_ibm_volume_set(sc, arg); 897 break; 898 899 case ACPI_IBM_METHOD_MUTE: 900 return acpi_ibm_mute_set(sc, arg); 901 break; 902 903 case ACPI_IBM_METHOD_MIC_LED: 904 return acpi_ibm_mic_led_set (sc, arg); 905 break; 906 907 case ACPI_IBM_METHOD_THINKLIGHT: 908 return acpi_ibm_thinklight_set(sc, arg); 909 break; 910 911 case ACPI_IBM_METHOD_BLUETOOTH: 912 return acpi_ibm_bluetooth_set(sc, arg); 913 break; 914 915 case ACPI_IBM_METHOD_PRIVACYGUARD: 916 return (acpi_status_to_errno(acpi_ibm_privacyguard_set(sc, arg))); 917 break; 918 919 case ACPI_IBM_METHOD_FANLEVEL: 920 if (arg < 0 || arg > 7) 921 return (EINVAL); 922 923 if (!sc->fan_handle) { 924 /* Read the current fanstatus */ 925 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 926 val = val_ec & (~IBM_EC_MASK_FANLEVEL); 927 928 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1); 929 } 930 break; 931 932 case ACPI_IBM_METHOD_FANSTATUS: 933 if (arg < 0 || arg > 1) 934 return (EINVAL); 935 936 if (!sc->fan_handle) { 937 /* Read the current fanstatus */ 938 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 939 940 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, 941 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1); 942 } 943 break; 944 } 945 946 return (0); 947 } 948 949 static int 950 acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method) 951 { 952 int dummy; 953 ACPI_OBJECT_TYPE cmos_t; 954 ACPI_HANDLE ledb_handle; 955 956 switch (method) { 957 case ACPI_IBM_METHOD_EVENTS: 958 return (TRUE); 959 960 case ACPI_IBM_METHOD_EVENTMASK: 961 return (sc->events_mask_supported); 962 963 case ACPI_IBM_METHOD_HOTKEY: 964 case ACPI_IBM_METHOD_BRIGHTNESS: 965 case ACPI_IBM_METHOD_VOLUME: 966 case ACPI_IBM_METHOD_MUTE: 967 /* EC is required here, which was already checked before */ 968 return (TRUE); 969 970 case ACPI_IBM_METHOD_MIC_LED: 971 if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "MMTS", &sc->mic_led_handle))) 972 { 973 /* Turn off mic led by default */ 974 acpi_ibm_mic_led_set (sc, 0); 975 return(TRUE); 976 } 977 else 978 sc->mic_led_handle = NULL; 979 return (FALSE); 980 981 case ACPI_IBM_METHOD_THINKLIGHT: 982 sc->cmos_handle = NULL; 983 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger( 984 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val)); 985 986 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) || 987 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) || 988 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) && 989 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) && 990 cmos_t == ACPI_TYPE_METHOD) { 991 sc->light_cmd_on = 0x0c; 992 sc->light_cmd_off = 0x0d; 993 sc->cmos_handle = sc->light_handle; 994 } 995 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) { 996 sc->light_cmd_on = 1; 997 sc->light_cmd_off = 0; 998 } 999 else 1000 sc->light_handle = NULL; 1001 1002 sc->light_set_supported = (sc->light_handle && 1003 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle))); 1004 1005 if (sc->light_get_supported) 1006 return (TRUE); 1007 1008 if (sc->light_set_supported) { 1009 sc->light_val = 0; 1010 return (TRUE); 1011 } 1012 1013 return (FALSE); 1014 1015 case ACPI_IBM_METHOD_BLUETOOTH: 1016 case ACPI_IBM_METHOD_WLAN: 1017 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy))) 1018 return (TRUE); 1019 return (FALSE); 1020 1021 case ACPI_IBM_METHOD_FANSPEED: 1022 /* 1023 * Some models report the fan speed in levels from 0-7 1024 * Newer models report it contiguously 1025 */ 1026 sc->fan_levels = 1027 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) || 1028 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle))); 1029 return (TRUE); 1030 1031 case ACPI_IBM_METHOD_FANLEVEL: 1032 case ACPI_IBM_METHOD_FANSTATUS: 1033 /* 1034 * Fan status is only supported on those models, 1035 * which report fan RPM contiguously, not in levels 1036 */ 1037 if (sc->fan_levels) 1038 return (FALSE); 1039 return (TRUE); 1040 1041 case ACPI_IBM_METHOD_THERMAL: 1042 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) { 1043 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy)); 1044 return (TRUE); 1045 } 1046 return (FALSE); 1047 1048 case ACPI_IBM_METHOD_HANDLEREVENTS: 1049 return (TRUE); 1050 1051 case ACPI_IBM_METHOD_PRIVACYGUARD: 1052 return (acpi_ibm_privacyguard_get(sc) != -1); 1053 1054 } 1055 return (FALSE); 1056 } 1057 1058 static int 1059 acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS) 1060 { 1061 struct acpi_ibm_softc *sc; 1062 int error = 0; 1063 char temp_cmd[] = "TMP0"; 1064 int temp[8]; 1065 1066 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1067 1068 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 1069 1070 ACPI_SERIAL_BEGIN(ibm); 1071 1072 for (int i = 0; i < 8; ++i) { 1073 temp_cmd[3] = '0' + i; 1074 1075 /* 1076 * The TMPx methods seem to return +/- 128 or 0 1077 * when the respecting sensor is not available 1078 */ 1079 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 1080 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) 1081 temp[i] = -1; 1082 else if (sc->thermal_updt_supported) 1083 /* Temperature is reported in tenth of Kelvin */ 1084 temp[i] = (temp[i] - 2731 + 5) / 10; 1085 } 1086 1087 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req); 1088 1089 ACPI_SERIAL_END(ibm); 1090 return (error); 1091 } 1092 1093 static int 1094 acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS) 1095 { 1096 struct acpi_ibm_softc *sc; 1097 int error = 0; 1098 struct sbuf sb; 1099 char *cp, *ep; 1100 int l, val; 1101 unsigned int handler_events; 1102 char temp[128]; 1103 1104 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1105 1106 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 1107 1108 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 1109 return (ENOMEM); 1110 1111 ACPI_SERIAL_BEGIN(ibm); 1112 1113 /* Get old values if this is a get request. */ 1114 if (req->newptr == NULL) { 1115 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++) 1116 if (sc->handler_events & (1 << i)) 1117 sbuf_printf(&sb, "0x%02x ", i + 1); 1118 if (sbuf_len(&sb) == 0) 1119 sbuf_printf(&sb, "NONE"); 1120 } 1121 1122 sbuf_trim(&sb); 1123 sbuf_finish(&sb); 1124 strlcpy(temp, sbuf_data(&sb), sizeof(temp)); 1125 sbuf_delete(&sb); 1126 1127 error = sysctl_handle_string(oidp, temp, sizeof(temp), req); 1128 1129 /* Check for error or no change */ 1130 if (error != 0 || req->newptr == NULL) 1131 goto out; 1132 1133 /* If the user is setting a string, parse it. */ 1134 handler_events = 0; 1135 cp = temp; 1136 while (*cp) { 1137 if (isspace(*cp)) { 1138 cp++; 1139 continue; 1140 } 1141 1142 ep = cp; 1143 1144 while (*ep && !isspace(*ep)) 1145 ep++; 1146 1147 l = ep - cp; 1148 if (l == 0) 1149 break; 1150 1151 if (strncmp(cp, "NONE", 4) == 0) { 1152 cp = ep; 1153 continue; 1154 } 1155 1156 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x')) 1157 val = strtoul(cp, &ep, 16); 1158 else 1159 val = strtoul(cp, &ep, 10); 1160 1161 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) { 1162 cp[l] = '\0'; 1163 device_printf(sc->dev, "invalid event code: %s\n", cp); 1164 error = EINVAL; 1165 goto out; 1166 } 1167 1168 handler_events |= 1 << (val - 1); 1169 1170 cp = ep; 1171 } 1172 1173 sc->handler_events = handler_events; 1174 out: 1175 ACPI_SERIAL_END(ibm); 1176 return (error); 1177 } 1178 1179 static int 1180 acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg) 1181 { 1182 int val, step; 1183 UINT64 val_ec; 1184 ACPI_OBJECT Arg; 1185 ACPI_OBJECT_LIST Args; 1186 ACPI_STATUS status; 1187 1188 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1189 ACPI_SERIAL_ASSERT(ibm); 1190 1191 if (arg < 0 || arg > 7) 1192 return (EINVAL); 1193 1194 /* Read the current brightness */ 1195 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 1196 if (ACPI_FAILURE(status)) 1197 return (status); 1198 1199 if (sc->cmos_handle) { 1200 val = val_ec & IBM_EC_MASK_BRI; 1201 1202 Args.Count = 1; 1203 Args.Pointer = &Arg; 1204 Arg.Type = ACPI_TYPE_INTEGER; 1205 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : 1206 IBM_CMOS_BRIGHTNESS_DOWN; 1207 1208 step = (arg > val) ? 1 : -1; 1209 for (int i = val; i != arg; i += step) { 1210 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1211 &Args, NULL); 1212 if (ACPI_FAILURE(status)) { 1213 /* Record the last value */ 1214 if (i != val) { 1215 ACPI_EC_WRITE(sc->ec_dev, 1216 IBM_EC_BRIGHTNESS, i - step, 1); 1217 } 1218 return (status); 1219 } 1220 } 1221 } 1222 1223 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1); 1224 } 1225 1226 static int 1227 acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg) 1228 { 1229 int val; 1230 1231 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1232 ACPI_SERIAL_ASSERT(ibm); 1233 1234 if (arg < 0 || arg > 1) 1235 return (EINVAL); 1236 1237 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : 1238 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT); 1239 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val); 1240 } 1241 1242 static int 1243 acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg) 1244 { 1245 ACPI_OBJECT Arg; 1246 ACPI_OBJECT_LIST Args; 1247 ACPI_STATUS status; 1248 1249 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1250 ACPI_SERIAL_ASSERT(ibm); 1251 1252 if (arg < 0 || arg > 1) 1253 return (EINVAL); 1254 1255 if (sc->light_set_supported) { 1256 Args.Count = 1; 1257 Args.Pointer = &Arg; 1258 Arg.Type = ACPI_TYPE_INTEGER; 1259 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off; 1260 1261 status = AcpiEvaluateObject(sc->light_handle, NULL, 1262 &Args, NULL); 1263 if (ACPI_SUCCESS(status)) 1264 sc->light_val = arg; 1265 return (status); 1266 } 1267 1268 return (0); 1269 } 1270 1271 /* 1272 * Helper function to make a get or set ACPI call to the PrivacyGuard handle. 1273 * Only meant to be used internally by the get/set functions below. 1274 */ 1275 static ACPI_STATUS 1276 acpi_ibm_privacyguard_acpi_call(struct acpi_ibm_softc *sc, bool write, int *arg) { 1277 ACPI_OBJECT Arg; 1278 ACPI_OBJECT_LIST Args; 1279 ACPI_STATUS status; 1280 ACPI_OBJECT out_obj; 1281 ACPI_BUFFER result; 1282 1283 Arg.Type = ACPI_TYPE_INTEGER; 1284 Arg.Integer.Value = (write ? *arg : 0); 1285 Args.Count = 1; 1286 Args.Pointer = &Arg; 1287 result.Length = sizeof(out_obj); 1288 result.Pointer = &out_obj; 1289 1290 status = AcpiEvaluateObject(sc->handle, 1291 (write ? IBM_NAME_PRIVACYGUARD_SET : IBM_NAME_PRIVACYGUARD_GET), 1292 &Args, &result); 1293 if (ACPI_SUCCESS(status) && !write) 1294 *arg = out_obj.Integer.Value; 1295 1296 return (status); 1297 } 1298 1299 /* 1300 * Returns -1 if the device is not present. 1301 */ 1302 static int 1303 acpi_ibm_privacyguard_get(struct acpi_ibm_softc *sc) 1304 { 1305 ACPI_STATUS status; 1306 int val; 1307 1308 status = acpi_ibm_privacyguard_acpi_call(sc, false, &val); 1309 if (ACPI_SUCCESS(status) && 1310 (val & IBM_FLAG_PRIVACYGUARD_DEVICE_PRESENT)) 1311 return (val & IBM_FLAG_PRIVACYGUARD_ON); 1312 1313 return (-1); 1314 } 1315 1316 static ACPI_STATUS 1317 acpi_ibm_privacyguard_set(struct acpi_ibm_softc *sc, int arg) 1318 { 1319 if (arg < 0 || arg > 1) 1320 return (AE_BAD_PARAMETER); 1321 1322 return (acpi_ibm_privacyguard_acpi_call(sc, true, &arg)); 1323 } 1324 1325 static int 1326 acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg) 1327 { 1328 int val, step; 1329 UINT64 val_ec; 1330 ACPI_OBJECT Arg; 1331 ACPI_OBJECT_LIST Args; 1332 ACPI_STATUS status; 1333 1334 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1335 ACPI_SERIAL_ASSERT(ibm); 1336 1337 if (arg < 0 || arg > 14) 1338 return (EINVAL); 1339 1340 /* Read the current volume */ 1341 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1342 if (ACPI_FAILURE(status)) 1343 return (status); 1344 1345 if (sc->cmos_handle) { 1346 val = val_ec & IBM_EC_MASK_VOL; 1347 1348 Args.Count = 1; 1349 Args.Pointer = &Arg; 1350 Arg.Type = ACPI_TYPE_INTEGER; 1351 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : 1352 IBM_CMOS_VOLUME_DOWN; 1353 1354 step = (arg > val) ? 1 : -1; 1355 for (int i = val; i != arg; i += step) { 1356 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1357 &Args, NULL); 1358 if (ACPI_FAILURE(status)) { 1359 /* Record the last value */ 1360 if (i != val) { 1361 val_ec = i - step + 1362 (val_ec & (~IBM_EC_MASK_VOL)); 1363 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, 1364 val_ec, 1); 1365 } 1366 return (status); 1367 } 1368 } 1369 } 1370 1371 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL)); 1372 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1373 } 1374 1375 static int 1376 acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg) 1377 { 1378 UINT64 val_ec; 1379 ACPI_OBJECT Arg; 1380 ACPI_OBJECT_LIST Args; 1381 ACPI_STATUS status; 1382 1383 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1384 ACPI_SERIAL_ASSERT(ibm); 1385 1386 if (arg < 0 || arg > 1) 1387 return (EINVAL); 1388 1389 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1390 if (ACPI_FAILURE(status)) 1391 return (status); 1392 1393 if (sc->cmos_handle) { 1394 Args.Count = 1; 1395 Args.Pointer = &Arg; 1396 Arg.Type = ACPI_TYPE_INTEGER; 1397 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE; 1398 1399 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 1400 if (ACPI_FAILURE(status)) 1401 return (status); 1402 } 1403 1404 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE : 1405 val_ec & (~IBM_EC_MASK_MUTE); 1406 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1407 } 1408 1409 static void 1410 acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg) 1411 { 1412 int val; 1413 UINT64 val_ec; 1414 ACPI_STATUS status; 1415 1416 ACPI_SERIAL_BEGIN(ibm); 1417 switch (arg) { 1418 case IBM_EVENT_SUSPEND_TO_RAM: 1419 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 1420 break; 1421 1422 case IBM_EVENT_BLUETOOTH: 1423 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0)); 1424 break; 1425 1426 case IBM_EVENT_BRIGHTNESS_UP: 1427 case IBM_EVENT_BRIGHTNESS_DOWN: 1428 /* Read the current brightness */ 1429 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, 1430 &val_ec, 1); 1431 if (ACPI_FAILURE(status)) 1432 return; 1433 1434 val = val_ec & IBM_EC_MASK_BRI; 1435 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1; 1436 acpi_ibm_brightness_set(sc, val); 1437 break; 1438 1439 case IBM_EVENT_THINKLIGHT: 1440 acpi_ibm_thinklight_set(sc, (sc->light_val == 0)); 1441 break; 1442 1443 case IBM_EVENT_VOLUME_UP: 1444 case IBM_EVENT_VOLUME_DOWN: 1445 /* Read the current volume */ 1446 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1447 if (ACPI_FAILURE(status)) 1448 return; 1449 1450 val = val_ec & IBM_EC_MASK_VOL; 1451 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1; 1452 acpi_ibm_volume_set(sc, val); 1453 break; 1454 1455 case IBM_EVENT_MUTE: 1456 /* Read the current value */ 1457 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1458 if (ACPI_FAILURE(status)) 1459 return; 1460 1461 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 1462 acpi_ibm_mute_set(sc, (val == 0)); 1463 break; 1464 1465 default: 1466 break; 1467 } 1468 ACPI_SERIAL_END(ibm); 1469 } 1470 1471 static void 1472 acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context) 1473 { 1474 int event, arg, type; 1475 device_t dev = context; 1476 struct acpi_ibm_softc *sc = device_get_softc(dev); 1477 1478 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); 1479 1480 if (notify != 0x80) 1481 device_printf(dev, "Unknown notify\n"); 1482 1483 for (;;) { 1484 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event); 1485 if (event == 0) 1486 break; 1487 1488 1489 type = (event >> 12) & 0xf; 1490 arg = event & 0xfff; 1491 switch (type) { 1492 case 1: 1493 if (!(sc->events_availmask & (1 << (arg - 1)))) { 1494 device_printf(dev, "Unknown key %d\n", arg); 1495 break; 1496 } 1497 1498 /* Execute event handler */ 1499 if (sc->handler_events & (1 << (arg - 1))) 1500 acpi_ibm_eventhandler(sc, (arg & 0xff)); 1501 1502 /* Notify devd(8) */ 1503 acpi_UserNotify("IBM", h, (arg & 0xff)); 1504 break; 1505 default: 1506 break; 1507 } 1508 } 1509 } 1510