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 * $FreeBSD: head/sys/dev/acpi_support/acpi_ibm.c 358333 2020-02-26 14:26:36Z kaktus $ 28 */ 29 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/kernel.h> 42 #include <sys/bus.h> 43 #include <machine/cpufunc.h> 44 #include <sys/module.h> 45 #include <sys/sensors.h> 46 #include <sys/sbuf.h> 47 #include <sys/sysctl.h> 48 #include <sys/lock.h> 49 #include <sys/power.h> 50 #include <machine/clock.h> 51 #include <dev/misc/led/led.h> 52 53 #include "acpi.h" 54 #include "accommon.h" 55 #include "acpivar.h" 56 57 #define _COMPONENT ACPI_OEM 58 ACPI_MODULE_NAME("THINKPAD") 59 60 /* Internal methods */ 61 #define ACPI_THINKPAD_METHOD_EVENTS 1 62 #define ACPI_THINKPAD_METHOD_EVENTMASK 2 63 #define ACPI_THINKPAD_METHOD_HOTKEY 3 64 #define ACPI_THINKPAD_METHOD_BRIGHTNESS 4 65 #define ACPI_THINKPAD_METHOD_VOLUME 5 66 #define ACPI_THINKPAD_METHOD_MUTE 6 67 #define ACPI_THINKPAD_METHOD_THINKLIGHT 7 68 #define ACPI_THINKPAD_METHOD_BLUETOOTH 8 69 #define ACPI_THINKPAD_METHOD_WLAN 9 70 #define ACPI_THINKPAD_METHOD_FANSPEED 10 71 #define ACPI_THINKPAD_METHOD_FANLEVEL 11 72 #define ACPI_THINKPAD_METHOD_FANSTATUS 12 73 #define ACPI_THINKPAD_METHOD_THERMAL 13 74 #define ACPI_THINKPAD_METHOD_HANDLEREVENTS 14 75 #define ACPI_THINKPAD_METHOD_MIC_LED 15 76 #define ACPI_THINKPAD_METHOD_PRIVACYGUARD 16 77 78 /* Hotkeys/Buttons */ 79 #define THINKPAD_RTC_HOTKEY1 0x64 80 #define THINKPAD_RTC_MASK_HOME (1 << 0) 81 #define THINKPAD_RTC_MASK_SEARCH (1 << 1) 82 #define THINKPAD_RTC_MASK_MAIL (1 << 2) 83 #define THINKPAD_RTC_MASK_WLAN (1 << 5) 84 #define THINKPAD_RTC_HOTKEY2 0x65 85 #define THINKPAD_RTC_MASK_THINKPAD (1 << 3) 86 #define THINKPAD_RTC_MASK_ZOOM (1 << 5) 87 #define THINKPAD_RTC_MASK_VIDEO (1 << 6) 88 #define THINKPAD_RTC_MASK_HIBERNATE (1 << 7) 89 #define THINKPAD_RTC_THINKLIGHT 0x66 90 #define THINKPAD_RTC_MASK_THINKLIGHT (1 << 4) 91 #define THINKPAD_RTC_SCREENEXPAND 0x67 92 #define THINKPAD_RTC_MASK_SCREENEXPAND (1 << 5) 93 #define THINKPAD_RTC_BRIGHTNESS 0x6c 94 #define THINKPAD_RTC_MASK_BRIGHTNESS (1 << 5) 95 #define THINKPAD_RTC_VOLUME 0x6e 96 #define THINKPAD_RTC_MASK_VOLUME (1 << 7) 97 98 /* Embedded Controller registers */ 99 #define THINKPAD_EC_BRIGHTNESS 0x31 100 #define THINKPAD_EC_MASK_BRI 0x7 101 #define THINKPAD_EC_VOLUME 0x30 102 #define THINKPAD_EC_MASK_VOL 0xf 103 #define THINKPAD_EC_MASK_MUTE (1 << 6) 104 #define THINKPAD_EC_FANSTATUS 0x2F 105 #define THINKPAD_EC_MASK_FANLEVEL 0x3f 106 #define THINKPAD_EC_MASK_FANDISENGAGED (1 << 6) 107 #define THINKPAD_EC_MASK_FANSTATUS (1 << 7) 108 #define THINKPAD_EC_FANSPEED 0x84 109 110 /* CMOS Commands */ 111 #define THINKPAD_CMOS_VOLUME_DOWN 0 112 #define THINKPAD_CMOS_VOLUME_UP 1 113 #define THINKPAD_CMOS_VOLUME_MUTE 2 114 #define THINKPAD_CMOS_BRIGHTNESS_UP 4 115 #define THINKPAD_CMOS_BRIGHTNESS_DOWN 5 116 117 /* ACPI methods */ 118 #define THINKPAD_NAME_KEYLIGHT "KBLT" 119 #define THINKPAD_NAME_WLAN_BT_GET "GBDC" 120 #define THINKPAD_NAME_WLAN_BT_SET "SBDC" 121 #define THINKPAD_NAME_MASK_BT (1 << 1) 122 #define THINKPAD_NAME_MASK_WLAN (1 << 2) 123 #define THINKPAD_NAME_THERMAL_GET "TMP7" 124 #define THINKPAD_NAME_THERMAL_UPDT "UPDT" 125 #define THINKPAD_NAME_PRIVACYGUARD_GET "GSSS" 126 #define THINKPAD_NAME_PRIVACYGUARD_SET "SSSS" 127 128 #define THINKPAD_NAME_EVENTS_STATUS_GET "DHKC" 129 #define THINKPAD_NAME_EVENTS_MASK_GET "DHKN" 130 #define THINKPAD_NAME_EVENTS_STATUS_SET "MHKC" 131 #define THINKPAD_NAME_EVENTS_MASK_SET "MHKM" 132 #define THINKPAD_NAME_EVENTS_GET "MHKP" 133 #define THINKPAD_NAME_EVENTS_AVAILMASK "MHKA" 134 135 #define THINKPAD_NUM_SENSORS 9 136 #define THINKPAD_TEMP_SENSORS 8 137 138 /* Event Code */ 139 #define THINKPAD_EVENT_LCD_BACKLIGHT 0x03 140 #define THINKPAD_EVENT_SUSPEND_TO_RAM 0x04 141 #define THINKPAD_EVENT_BLUETOOTH 0x05 142 #define THINKPAD_EVENT_SCREEN_EXPAND 0x07 143 #define THINKPAD_EVENT_SUSPEND_TO_DISK 0x0c 144 #define THINKPAD_EVENT_BRIGHTNESS_UP 0x10 145 #define THINKPAD_EVENT_BRIGHTNESS_DOWN 0x11 146 #define THINKPAD_EVENT_THINKLIGHT 0x12 147 #define THINKPAD_EVENT_ZOOM 0x14 148 #define THINKPAD_EVENT_VOLUME_UP 0x15 149 #define THINKPAD_EVENT_VOLUME_DOWN 0x16 150 #define THINKPAD_EVENT_MUTE 0x17 151 #define THINKPAD_EVENT_ACCESS_THINKPAD_BUTTON 0x18 152 153 /* Device-specific register flags */ 154 #define THINKPAD_FLAG_PRIVACYGUARD_DEVICE_PRESENT 0x10000 155 #define THINKPAD_FLAG_PRIVACYGUARD_ON 0x1 156 157 #define ABS(x) (((x) < 0)? -(x) : (x)) 158 159 struct acpi_thinkpad_softc { 160 device_t dev; 161 ACPI_HANDLE handle; 162 163 /* Embedded controller */ 164 device_t ec_dev; 165 ACPI_HANDLE ec_handle; 166 167 /* CMOS */ 168 ACPI_HANDLE cmos_handle; 169 170 /* Fan status */ 171 ACPI_HANDLE fan_handle; 172 int fan_levels; 173 174 /* Keylight commands and states */ 175 ACPI_HANDLE light_handle; 176 int light_cmd_on; 177 int light_cmd_off; 178 int light_val; 179 int light_get_supported; 180 int light_set_supported; 181 182 /* led(4) interface */ 183 struct cdev *led_dev; 184 int led_busy; 185 int led_state; 186 187 /* Mic led handle */ 188 ACPI_HANDLE mic_led_handle; 189 int mic_led_state; 190 191 int wlan_bt_flags; 192 int thermal_updt_supported; 193 194 unsigned int events_availmask; 195 unsigned int events_initialmask; 196 int events_mask_supported; 197 int events_enable; 198 199 /* sensors(9) related */ 200 struct ksensordev sensordev; 201 struct ksensor sensors[THINKPAD_NUM_SENSORS]; 202 203 unsigned int handler_events; 204 205 struct sysctl_ctx_list *sysctl_ctx; 206 struct sysctl_oid *sysctl_tree; 207 }; 208 209 static struct { 210 char *name; 211 int method; 212 char *description; 213 int flag_rdonly; 214 } acpi_thinkpad_sysctls[] = { 215 { 216 .name = "events", 217 .method = ACPI_THINKPAD_METHOD_EVENTS, 218 .description = "ACPI events enable", 219 }, 220 { 221 .name = "eventmask", 222 .method = ACPI_THINKPAD_METHOD_EVENTMASK, 223 .description = "ACPI eventmask", 224 }, 225 { 226 .name = "hotkey", 227 .method = ACPI_THINKPAD_METHOD_HOTKEY, 228 .description = "Key Status", 229 .flag_rdonly = 1 230 }, 231 { 232 .name = "lcd_brightness", 233 .method = ACPI_THINKPAD_METHOD_BRIGHTNESS, 234 .description = "LCD Brightness", 235 }, 236 { 237 .name = "volume", 238 .method = ACPI_THINKPAD_METHOD_VOLUME, 239 .description = "Volume", 240 }, 241 { 242 .name = "mute", 243 .method = ACPI_THINKPAD_METHOD_MUTE, 244 .description = "Mute", 245 }, 246 { 247 .name = "thinklight", 248 .method = ACPI_THINKPAD_METHOD_THINKLIGHT, 249 .description = "Thinklight enable", 250 }, 251 { 252 .name = "bluetooth", 253 .method = ACPI_THINKPAD_METHOD_BLUETOOTH, 254 .description = "Bluetooth enable", 255 }, 256 { 257 .name = "wlan", 258 .method = ACPI_THINKPAD_METHOD_WLAN, 259 .description = "WLAN enable", 260 .flag_rdonly = 1 261 }, 262 { 263 .name = "fan_speed", 264 .method = ACPI_THINKPAD_METHOD_FANSPEED, 265 .description = "Fan speed", 266 .flag_rdonly = 1 267 }, 268 { 269 .name = "fan_level", 270 .method = ACPI_THINKPAD_METHOD_FANLEVEL, 271 .description = "Fan level", 272 }, 273 { 274 .name = "fan", 275 .method = ACPI_THINKPAD_METHOD_FANSTATUS, 276 .description = "Fan enable", 277 }, 278 { 279 .name = "mic_led", 280 .method = ACPI_THINKPAD_METHOD_MIC_LED, 281 .description = "Mic led", 282 }, 283 { 284 .name = "privacyguard", 285 .method = ACPI_THINKPAD_METHOD_PRIVACYGUARD, 286 .description = "PrivacyGuard enable", 287 }, 288 { NULL, 0, NULL, 0 } 289 }; 290 291 /* 292 * Per-model default list of event mask. 293 */ 294 #define ACPI_THINKPAD_HKEY_RFKILL_MASK (1U << 4) 295 #define ACPI_THINKPAD_HKEY_DSWITCH_MASK (1U << 6) 296 #define ACPI_THINKPAD_HKEY_BRIGHTNESS_UP_MASK (1U << 15) 297 #define ACPI_THINKPAD_HKEY_BRIGHTNESS_DOWN_MASK (1U << 16) 298 #define ACPI_THINKPAD_HKEY_SEARCH_MASK (1U << 18) 299 #define ACPI_THINKPAD_HKEY_MICMUTE_MASK (1U << 26) 300 #define ACPI_THINKPAD_HKEY_SETTINGS_MASK (1U << 28) 301 #define ACPI_THINKPAD_HKEY_VIEWOPEN_MASK (1U << 30) 302 #define ACPI_THINKPAD_HKEY_VIEWALL_MASK (1U << 31) 303 304 struct acpi_thinkpad_models { 305 const char *maker; 306 const char *product; 307 uint32_t eventmask; 308 } acpi_thinkpad_models[] = { 309 { "LENOVO", "20BSCTO1WW", 310 ACPI_THINKPAD_HKEY_RFKILL_MASK | 311 ACPI_THINKPAD_HKEY_DSWITCH_MASK | 312 ACPI_THINKPAD_HKEY_BRIGHTNESS_UP_MASK | 313 ACPI_THINKPAD_HKEY_BRIGHTNESS_DOWN_MASK | 314 ACPI_THINKPAD_HKEY_SEARCH_MASK | 315 ACPI_THINKPAD_HKEY_MICMUTE_MASK | 316 ACPI_THINKPAD_HKEY_SETTINGS_MASK | 317 ACPI_THINKPAD_HKEY_VIEWOPEN_MASK | 318 ACPI_THINKPAD_HKEY_VIEWALL_MASK 319 } 320 }; 321 322 ACPI_SERIAL_DECL(thinkpad, "ThinkPad ACPI Extras"); 323 324 static int acpi_thinkpad_probe(device_t dev); 325 static int acpi_thinkpad_attach(device_t dev); 326 static int acpi_thinkpad_detach(device_t dev); 327 static int acpi_thinkpad_resume(device_t dev); 328 329 static void thinkpad_led(void *softc, int onoff); 330 static void thinkpad_led_task(struct acpi_thinkpad_softc *sc, int pending __unused); 331 332 static int acpi_thinkpad_sysctl(SYSCTL_HANDLER_ARGS); 333 static int acpi_thinkpad_sysctl_init(struct acpi_thinkpad_softc *sc, int method); 334 static int acpi_thinkpad_sysctl_get(struct acpi_thinkpad_softc *sc, int method); 335 static int acpi_thinkpad_sysctl_set(struct acpi_thinkpad_softc *sc, int method, int val); 336 337 static int acpi_thinkpad_eventmask_set(struct acpi_thinkpad_softc *sc, int val); 338 static int acpi_thinkpad_thermal_sysctl(SYSCTL_HANDLER_ARGS); 339 static int acpi_thinkpad_handlerevents_sysctl(SYSCTL_HANDLER_ARGS); 340 static void acpi_thinkpad_notify(ACPI_HANDLE h, UINT32 notify, void *context); 341 static void acpi_thinkpad_refresh(void *); 342 343 static int acpi_thinkpad_brightness_set(struct acpi_thinkpad_softc *sc, int arg); 344 static int acpi_thinkpad_bluetooth_set(struct acpi_thinkpad_softc *sc, int arg); 345 static int acpi_thinkpad_thinklight_set(struct acpi_thinkpad_softc *sc, int arg); 346 static int acpi_thinkpad_volume_set(struct acpi_thinkpad_softc *sc, int arg); 347 static int acpi_thinkpad_mute_set(struct acpi_thinkpad_softc *sc, int arg); 348 static int acpi_thinkpad_privacyguard_get(struct acpi_thinkpad_softc *sc); 349 static ACPI_STATUS acpi_thinkpad_privacyguard_set(struct acpi_thinkpad_softc *sc, int arg); 350 static ACPI_STATUS acpi_thinkpad_privacyguard_acpi_call(struct acpi_thinkpad_softc *sc, bool write, int *arg); 351 352 static int acpi_status_to_errno(ACPI_STATUS status); 353 354 static device_method_t acpi_thinkpad_methods[] = { 355 /* Device interface */ 356 DEVMETHOD(device_probe, acpi_thinkpad_probe), 357 DEVMETHOD(device_attach, acpi_thinkpad_attach), 358 DEVMETHOD(device_detach, acpi_thinkpad_detach), 359 DEVMETHOD(device_resume, acpi_thinkpad_resume), 360 361 DEVMETHOD_END 362 }; 363 364 static driver_t acpi_thinkpad_driver = { 365 "acpi_thinkpad", 366 acpi_thinkpad_methods, 367 sizeof(struct acpi_thinkpad_softc), 368 }; 369 370 static devclass_t acpi_thinkpad_devclass; 371 372 DRIVER_MODULE(acpi_thinkpad, acpi, acpi_thinkpad_driver, acpi_thinkpad_devclass, NULL, NULL); 373 MODULE_DEPEND(acpi_thinkpad, acpi, 1, 1, 1); 374 MODULE_DEPEND(acpi_thinkpad, led, 1, 1, 1); 375 static char *thinkpad_ids[] = {"IBM0068", "LEN0068", "LEN0268", NULL}; 376 377 static int 378 acpi_status_to_errno(ACPI_STATUS status) 379 { 380 switch (status) { 381 case AE_OK: 382 return (0); 383 case AE_BAD_PARAMETER: 384 return (EINVAL); 385 default: 386 return (ENODEV); 387 } 388 } 389 390 static void 391 thinkpad_led(void *softc, int onoff) 392 { 393 struct acpi_thinkpad_softc *sc = softc; 394 395 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 396 397 if (sc->led_busy) 398 return; 399 400 sc->led_busy = 1; 401 sc->led_state = onoff; 402 403 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)thinkpad_led_task, sc); 404 } 405 406 static void 407 thinkpad_led_task(struct acpi_thinkpad_softc *sc, int pending __unused) 408 { 409 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 410 411 ACPI_SERIAL_BEGIN(thinkpad); 412 acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_THINKLIGHT, sc->led_state); 413 ACPI_SERIAL_END(thinkpad); 414 415 sc->led_busy = 0; 416 } 417 418 static int 419 acpi_thinkpad_mic_led_set(struct acpi_thinkpad_softc *sc, int arg) 420 { 421 ACPI_OBJECT_LIST input; 422 ACPI_OBJECT params[1]; 423 ACPI_STATUS status; 424 425 if (arg < 0 || arg > 1) 426 return (EINVAL); 427 428 if (sc->mic_led_handle) { 429 params[0].Type = ACPI_TYPE_INTEGER; 430 params[0].Integer.Value = 0; 431 /* mic led: 0 off, 2 on */ 432 if (arg == 1) 433 params[0].Integer.Value = 2; 434 435 input.Pointer = params; 436 input.Count = 1; 437 438 status = AcpiEvaluateObject(sc->handle, "MMTS", &input, NULL); 439 if (ACPI_SUCCESS(status)) 440 sc->mic_led_state = arg; 441 return (status); 442 } 443 444 return (0); 445 } 446 447 static int 448 acpi_thinkpad_probe(device_t dev) 449 { 450 if (acpi_disabled("thinkpad") || device_get_unit(dev) != 0 || ACPI_ID_PROBE(device_get_parent(dev), dev, thinkpad_ids) == NULL) 451 return (ENXIO); 452 453 device_set_desc(dev, "ThinkPad ACPI Extras"); 454 455 return (0); 456 } 457 458 static int 459 acpi_thinkpad_attach(device_t dev) 460 { 461 int i; 462 int hkey; 463 struct acpi_thinkpad_softc *sc; 464 char *maker, *product; 465 ACPI_OBJECT_LIST input; 466 ACPI_OBJECT params[1]; 467 ACPI_OBJECT out_obj; 468 ACPI_BUFFER result; 469 devclass_t ec_devclass; 470 471 ACPI_SERIAL_INIT(thinkpad); 472 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 473 474 sc = device_get_softc(dev); 475 sc->dev = dev; 476 sc->handle = acpi_get_handle(dev); 477 478 /* Look for the first embedded controller */ 479 if (!(ec_devclass = devclass_find ("acpi_ec"))) { 480 if (bootverbose) 481 device_printf(dev, "Couldn't find acpi_ec devclass\n"); 482 return (EINVAL); 483 } 484 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) { 485 if (bootverbose) 486 device_printf(dev, "Couldn't find acpi_ec device\n"); 487 return (EINVAL); 488 } 489 sc->ec_handle = acpi_get_handle(sc->ec_dev); 490 491 /* Get the sysctl tree */ 492 sc->sysctl_ctx = device_get_sysctl_ctx(dev); 493 sc->sysctl_tree = device_get_sysctl_tree(dev); 494 495 /* Look for event mask and hook up the nodes */ 496 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle, 497 THINKPAD_NAME_EVENTS_MASK_GET, &sc->events_initialmask)); 498 499 if (sc->events_mask_supported) { 500 SYSCTL_ADD_UINT(sc->sysctl_ctx, 501 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "initialmask", 502 CTLFLAG_RD, &sc->events_initialmask, 0, 503 "Initial eventmask"); 504 505 if (ACPI_SUCCESS (acpi_GetInteger(sc->handle, "MHKV", &hkey))) { 506 device_printf(dev, "Firmware version is 0x%X\n", hkey); 507 switch (hkey >> 8) { 508 case 1: 509 /* The availmask is the bitmask of supported events */ 510 if (ACPI_FAILURE(acpi_GetInteger(sc->handle, 511 THINKPAD_NAME_EVENTS_AVAILMASK, &sc->events_availmask))) 512 sc->events_availmask = 0xffffffff; 513 break; 514 515 case 2: 516 result.Length = sizeof(out_obj); 517 result.Pointer = &out_obj; 518 params[0].Type = ACPI_TYPE_INTEGER; 519 params[0].Integer.Value = 1; 520 input.Pointer = params; 521 input.Count = 1; 522 523 sc->events_availmask = 0xffffffff; 524 525 if (ACPI_SUCCESS(AcpiEvaluateObject (sc->handle, 526 THINKPAD_NAME_EVENTS_AVAILMASK, &input, &result))) 527 sc->events_availmask = out_obj.Integer.Value; 528 break; 529 default: 530 device_printf(dev, "Unknown firmware version 0x%x\n", hkey); 531 break; 532 } 533 } else 534 sc->events_availmask = 0xffffffff; 535 536 SYSCTL_ADD_UINT(sc->sysctl_ctx, 537 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 538 "availmask", CTLFLAG_RD, 539 &sc->events_availmask, 0, "Mask of supported events"); 540 } 541 542 /* Hook up proc nodes */ 543 for (i = 0; acpi_thinkpad_sysctls[i].name != NULL; i++) { 544 if (!acpi_thinkpad_sysctl_init(sc, acpi_thinkpad_sysctls[i].method)) 545 continue; 546 547 if (acpi_thinkpad_sysctls[i].flag_rdonly != 0) { 548 SYSCTL_ADD_PROC(sc->sysctl_ctx, 549 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 550 acpi_thinkpad_sysctls[i].name, 551 CTLTYPE_UINT | CTLFLAG_RD, 552 sc, i, acpi_thinkpad_sysctl, "IU", 553 acpi_thinkpad_sysctls[i].description); 554 } else { 555 SYSCTL_ADD_PROC(sc->sysctl_ctx, 556 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 557 acpi_thinkpad_sysctls[i].name, 558 CTLTYPE_UINT | CTLFLAG_RW, 559 sc, i, acpi_thinkpad_sysctl, "IU", 560 acpi_thinkpad_sysctls[i].description); 561 } 562 } 563 564 /* Hook up thermal node */ 565 if (acpi_thinkpad_sysctl_init(sc, ACPI_THINKPAD_METHOD_THERMAL)) { 566 SYSCTL_ADD_PROC(sc->sysctl_ctx, 567 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "thermal", 568 CTLTYPE_INT | CTLFLAG_RD, sc, 0, 569 acpi_thinkpad_thermal_sysctl, "I", "Thermal zones"); 570 } 571 572 /* Hook up handlerevents node */ 573 if (acpi_thinkpad_sysctl_init(sc, ACPI_THINKPAD_METHOD_HANDLEREVENTS)) { 574 SYSCTL_ADD_PROC(sc->sysctl_ctx, 575 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "handlerevents", 576 CTLTYPE_STRING | CTLFLAG_RW, sc, 0, 577 acpi_thinkpad_handlerevents_sysctl, "I", 578 "devd(8) events handled by acpi_thinkpad"); 579 } 580 581 /* Handle notifies */ 582 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, 583 acpi_thinkpad_notify, dev); 584 585 /* Attach sensors(9). */ 586 sensor_task_register(sc, acpi_thinkpad_refresh, 5); 587 588 strlcpy(sc->sensordev.xname, device_get_nameunit(sc->dev), 589 sizeof(sc->sensordev.xname)); 590 591 for (i = 0; i < THINKPAD_TEMP_SENSORS; i++) { 592 sc->sensors[i].type = SENSOR_TEMP; 593 sensor_attach(&sc->sensordev, &sc->sensors[i]); 594 } 595 596 sc->sensors[i].type = SENSOR_FANRPM; 597 sensor_attach(&sc->sensordev, &sc->sensors[i]); 598 599 sensordev_install(&sc->sensordev); 600 601 /* Hook up light to led(4) */ 602 if (sc->light_set_supported) 603 sc->led_dev = led_create_state(thinkpad_led, sc, "thinklight", 604 (sc->light_val ? 1 : 0)); 605 606 /* Enable per-model events. */ 607 maker = kgetenv("smbios.system.maker"); 608 product = kgetenv("smbios.system.product"); 609 if (maker == NULL || product == NULL) 610 goto nosmbios; 611 612 for (i = 0; i < nitems(acpi_thinkpad_models); i++) { 613 if (strcmp(maker, acpi_thinkpad_models[i].maker) == 0 && 614 strcmp(product, acpi_thinkpad_models[i].product) == 0) { 615 ACPI_SERIAL_BEGIN(thinkpad); 616 acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTMASK, 617 acpi_thinkpad_models[i].eventmask); 618 ACPI_SERIAL_END(thinkpad); 619 } 620 } 621 622 nosmbios: 623 kfreeenv(maker); 624 kfreeenv(product); 625 626 /* Enable events by default. */ 627 ACPI_SERIAL_BEGIN(thinkpad); 628 acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTS, 1); 629 ACPI_SERIAL_END(thinkpad); 630 631 return (0); 632 } 633 634 static int 635 acpi_thinkpad_detach(device_t dev) 636 { 637 int i; 638 639 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 640 641 struct acpi_thinkpad_softc *sc = device_get_softc(dev); 642 643 /* Disable events and restore eventmask */ 644 ACPI_SERIAL_BEGIN(thinkpad); 645 acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTS, 0); 646 acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTMASK, sc->events_initialmask); 647 ACPI_SERIAL_END(thinkpad); 648 649 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_thinkpad_notify); 650 651 if (sc->sysctl_tree != NULL) 652 sysctl_ctx_free(sc->sysctl_ctx); 653 654 sensordev_deinstall(&sc->sensordev); 655 for (i = 0; i < THINKPAD_NUM_SENSORS; i++) 656 sensor_detach(&sc->sensordev, &sc->sensors[i]); 657 sensor_task_unregister(sc); 658 659 if (sc->led_dev != NULL) 660 led_destroy(sc->led_dev); 661 662 return (0); 663 } 664 665 static int 666 acpi_thinkpad_resume(device_t dev) 667 { 668 struct acpi_thinkpad_softc *sc = device_get_softc(dev); 669 670 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 671 672 ACPI_SERIAL_BEGIN(thinkpad); 673 for (int i = 0; acpi_thinkpad_sysctls[i].name != NULL; i++) { 674 int val; 675 676 val = acpi_thinkpad_sysctl_get(sc, i); 677 678 if (acpi_thinkpad_sysctls[i].flag_rdonly != 0) 679 continue; 680 681 acpi_thinkpad_sysctl_set(sc, i, val); 682 } 683 ACPI_SERIAL_END(thinkpad); 684 685 /* The mic led does not turn back on when sysctl_set is called in the above loop */ 686 acpi_thinkpad_mic_led_set(sc, sc->mic_led_state); 687 688 return (0); 689 } 690 691 static int 692 acpi_thinkpad_eventmask_set(struct acpi_thinkpad_softc *sc, int val) 693 { 694 int i; 695 ACPI_OBJECT arg[2]; 696 ACPI_OBJECT_LIST args; 697 ACPI_STATUS status; 698 699 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 700 ACPI_SERIAL_ASSERT(thinkpad); 701 702 args.Count = 2; 703 args.Pointer = arg; 704 arg[0].Type = ACPI_TYPE_INTEGER; 705 arg[1].Type = ACPI_TYPE_INTEGER; 706 707 for (i = 0; i < 32; ++i) { 708 arg[0].Integer.Value = i + 1; 709 arg[1].Integer.Value = (((1U << i) & val) != 0); 710 status = AcpiEvaluateObject(sc->handle, 711 THINKPAD_NAME_EVENTS_MASK_SET, &args, NULL); 712 713 if (ACPI_FAILURE(status)) 714 return (status); 715 } 716 717 return (0); 718 } 719 720 static int 721 acpi_thinkpad_sysctl(SYSCTL_HANDLER_ARGS) 722 { 723 struct acpi_thinkpad_softc *sc; 724 int arg; 725 int error = 0; 726 int function; 727 int method; 728 729 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 730 731 sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1; 732 function = oidp->oid_arg2; 733 method = acpi_thinkpad_sysctls[function].method; 734 735 ACPI_SERIAL_BEGIN(thinkpad); 736 arg = acpi_thinkpad_sysctl_get(sc, method); 737 error = sysctl_handle_int(oidp, &arg, 0, req); 738 739 /* Sanity check */ 740 if (error != 0 || req->newptr == NULL) 741 goto out; 742 743 /* Update */ 744 error = acpi_thinkpad_sysctl_set(sc, method, arg); 745 746 out: 747 ACPI_SERIAL_END(thinkpad); 748 return (error); 749 } 750 751 static int 752 acpi_thinkpad_sysctl_get(struct acpi_thinkpad_softc *sc, int method) 753 { 754 UINT64 val_ec; 755 int val = 0, key; 756 757 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 758 ACPI_SERIAL_ASSERT(thinkpad); 759 760 switch (method) { 761 case ACPI_THINKPAD_METHOD_EVENTS: 762 acpi_GetInteger(sc->handle, THINKPAD_NAME_EVENTS_STATUS_GET, &val); 763 break; 764 765 case ACPI_THINKPAD_METHOD_EVENTMASK: 766 if (sc->events_mask_supported) 767 acpi_GetInteger(sc->handle, THINKPAD_NAME_EVENTS_MASK_GET, &val); 768 break; 769 770 case ACPI_THINKPAD_METHOD_HOTKEY: 771 /* 772 * Construct the hotkey as a bitmask as illustrated below. 773 * Note that whenever a key was pressed, the respecting bit 774 * toggles and nothing else changes. 775 * +--+--+-+-+-+-+-+-+-+-+-+-+ 776 * |11|10|9|8|7|6|5|4|3|2|1|0| 777 * +--+--+-+-+-+-+-+-+-+-+-+-+ 778 * | | | | | | | | | | | | 779 * | | | | | | | | | | | +- Home Button 780 * | | | | | | | | | | +--- Search Button 781 * | | | | | | | | | +----- Mail Button 782 * | | | | | | | | +------- Thinkpad Button 783 * | | | | | | | +--------- Zoom (Fn + Space) 784 * | | | | | | +----------- WLAN Button 785 * | | | | | +------------- Video Button 786 * | | | | +--------------- Hibernate Button 787 * | | | +----------------- Thinklight Button 788 * | | +------------------- Screen expand (Fn + F8) 789 * | +--------------------- Brightness 790 * +------------------------ Volume/Mute 791 */ 792 key = rtcin(THINKPAD_RTC_HOTKEY1); 793 val = (THINKPAD_RTC_MASK_HOME | THINKPAD_RTC_MASK_SEARCH | THINKPAD_RTC_MASK_MAIL | THINKPAD_RTC_MASK_WLAN) & key; 794 key = rtcin(THINKPAD_RTC_HOTKEY2); 795 val |= (THINKPAD_RTC_MASK_THINKPAD | THINKPAD_RTC_MASK_VIDEO | THINKPAD_RTC_MASK_HIBERNATE) & key; 796 val |= (THINKPAD_RTC_MASK_ZOOM & key) >> 1; 797 key = rtcin(THINKPAD_RTC_THINKLIGHT); 798 val |= (THINKPAD_RTC_MASK_THINKLIGHT & key) << 4; 799 key = rtcin(THINKPAD_RTC_SCREENEXPAND); 800 val |= (THINKPAD_RTC_MASK_THINKLIGHT & key) << 4; 801 key = rtcin(THINKPAD_RTC_BRIGHTNESS); 802 val |= (THINKPAD_RTC_MASK_BRIGHTNESS & key) << 5; 803 key = rtcin(THINKPAD_RTC_VOLUME); 804 val |= (THINKPAD_RTC_MASK_VOLUME & key) << 4; 805 break; 806 807 case ACPI_THINKPAD_METHOD_BRIGHTNESS: 808 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, &val_ec, 1); 809 val = val_ec & THINKPAD_EC_MASK_BRI; 810 break; 811 812 case ACPI_THINKPAD_METHOD_VOLUME: 813 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1); 814 val = val_ec & THINKPAD_EC_MASK_VOL; 815 break; 816 817 case ACPI_THINKPAD_METHOD_MUTE: 818 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1); 819 val = ((val_ec & THINKPAD_EC_MASK_MUTE) == THINKPAD_EC_MASK_MUTE); 820 break; 821 822 case ACPI_THINKPAD_METHOD_THINKLIGHT: 823 if (sc->light_get_supported) 824 acpi_GetInteger(sc->ec_handle, THINKPAD_NAME_KEYLIGHT, &val); 825 else 826 val = sc->light_val; 827 break; 828 829 case ACPI_THINKPAD_METHOD_BLUETOOTH: 830 acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &val); 831 sc->wlan_bt_flags = val; 832 val = ((val & THINKPAD_NAME_MASK_BT) != 0); 833 break; 834 835 case ACPI_THINKPAD_METHOD_WLAN: 836 acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &val); 837 sc->wlan_bt_flags = val; 838 val = ((val & THINKPAD_NAME_MASK_WLAN) != 0); 839 break; 840 841 case ACPI_THINKPAD_METHOD_FANSPEED: 842 if (sc->fan_handle) { 843 if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val))) 844 val = -1; 845 } else { 846 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSPEED, &val_ec, 2); 847 val = val_ec; 848 } 849 break; 850 851 case ACPI_THINKPAD_METHOD_FANLEVEL: 852 /* 853 * The THINKPAD_EC_FANSTATUS register works as follows: 854 * Bit 0-5 indicate the level at which the fan operates. Only 855 * values between 0 and 7 have an effect. Everything 856 * above 7 is treated the same as level 7 857 * Bit 6 overrides the fan speed limit if set to 1 858 * Bit 7 indicates at which mode the fan operates: 859 * manual (0) or automatic (1) 860 */ 861 if (!sc->fan_handle) { 862 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS, &val_ec, 1); 863 val = val_ec & THINKPAD_EC_MASK_FANLEVEL; 864 } 865 break; 866 867 case ACPI_THINKPAD_METHOD_FANSTATUS: 868 if (!sc->fan_handle) { 869 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS, &val_ec, 1); 870 val = (val_ec & THINKPAD_EC_MASK_FANSTATUS) == THINKPAD_EC_MASK_FANSTATUS; 871 } else 872 val = -1; 873 break; 874 875 case ACPI_THINKPAD_METHOD_MIC_LED: 876 if (sc->mic_led_handle) 877 return sc->mic_led_state; 878 else 879 val = -1; 880 break; 881 882 case ACPI_THINKPAD_METHOD_PRIVACYGUARD: 883 val = acpi_thinkpad_privacyguard_get(sc); 884 break; 885 } 886 887 return (val); 888 } 889 890 static int 891 acpi_thinkpad_sysctl_set(struct acpi_thinkpad_softc *sc, int method, int arg) 892 { 893 int val; 894 UINT64 val_ec; 895 ACPI_STATUS status; 896 897 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 898 ACPI_SERIAL_ASSERT(thinkpad); 899 900 switch (method) { 901 case ACPI_THINKPAD_METHOD_EVENTS: 902 if (arg < 0 || arg > 1) 903 return (EINVAL); 904 905 status = acpi_SetInteger(sc->handle, THINKPAD_NAME_EVENTS_STATUS_SET, arg); 906 if (ACPI_FAILURE(status)) 907 return (status); 908 if (sc->events_mask_supported) 909 return acpi_thinkpad_eventmask_set(sc, sc->events_availmask); 910 break; 911 912 case ACPI_THINKPAD_METHOD_EVENTMASK: 913 if (sc->events_mask_supported) 914 return acpi_thinkpad_eventmask_set(sc, arg); 915 break; 916 917 case ACPI_THINKPAD_METHOD_BRIGHTNESS: 918 return acpi_thinkpad_brightness_set(sc, arg); 919 break; 920 921 case ACPI_THINKPAD_METHOD_VOLUME: 922 return acpi_thinkpad_volume_set(sc, arg); 923 break; 924 925 case ACPI_THINKPAD_METHOD_MUTE: 926 return acpi_thinkpad_mute_set(sc, arg); 927 break; 928 929 case ACPI_THINKPAD_METHOD_MIC_LED: 930 return acpi_thinkpad_mic_led_set(sc, arg); 931 break; 932 933 case ACPI_THINKPAD_METHOD_THINKLIGHT: 934 return acpi_thinkpad_thinklight_set(sc, arg); 935 break; 936 937 case ACPI_THINKPAD_METHOD_BLUETOOTH: 938 return acpi_thinkpad_bluetooth_set(sc, arg); 939 break; 940 941 case ACPI_THINKPAD_METHOD_PRIVACYGUARD: 942 return (acpi_status_to_errno(acpi_thinkpad_privacyguard_set(sc, arg))); 943 break; 944 945 case ACPI_THINKPAD_METHOD_FANLEVEL: 946 if (arg < 0 || arg > 7) 947 return (EINVAL); 948 949 if (!sc->fan_handle) { 950 /* Read the current fanstatus */ 951 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS, &val_ec, 1); 952 val = val_ec & (~THINKPAD_EC_MASK_FANLEVEL); 953 954 return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_FANSTATUS, val | arg, 1); 955 } 956 break; 957 958 case ACPI_THINKPAD_METHOD_FANSTATUS: 959 if (arg < 0 || arg > 1) 960 return (EINVAL); 961 962 if (!sc->fan_handle) { 963 /* Read the current fanstatus */ 964 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS, &val_ec, 1); 965 966 return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_FANSTATUS, 967 (arg == 1) ? (val_ec | THINKPAD_EC_MASK_FANSTATUS) : (val_ec & (~THINKPAD_EC_MASK_FANSTATUS)), 1); 968 } 969 break; 970 } 971 972 return (0); 973 } 974 975 static int 976 acpi_thinkpad_sysctl_init(struct acpi_thinkpad_softc *sc, int method) 977 { 978 int dummy; 979 ACPI_OBJECT_TYPE cmos_t; 980 ACPI_HANDLE ledb_handle; 981 982 switch (method) { 983 case ACPI_THINKPAD_METHOD_EVENTS: 984 return (TRUE); 985 986 case ACPI_THINKPAD_METHOD_EVENTMASK: 987 return (sc->events_mask_supported); 988 989 case ACPI_THINKPAD_METHOD_HOTKEY: 990 case ACPI_THINKPAD_METHOD_BRIGHTNESS: 991 case ACPI_THINKPAD_METHOD_VOLUME: 992 case ACPI_THINKPAD_METHOD_MUTE: 993 /* EC is required here, which was already checked before */ 994 return (TRUE); 995 996 case ACPI_THINKPAD_METHOD_MIC_LED: 997 if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "MMTS", &sc->mic_led_handle))) 998 { 999 /* Turn off mic led by default */ 1000 acpi_thinkpad_mic_led_set(sc, 0); 1001 return (TRUE); 1002 } else 1003 sc->mic_led_handle = NULL; 1004 return (FALSE); 1005 1006 case ACPI_THINKPAD_METHOD_THINKLIGHT: 1007 sc->cmos_handle = NULL; 1008 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, THINKPAD_NAME_KEYLIGHT, &sc->light_val)); 1009 1010 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) || 1011 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) || 1012 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) && 1013 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) && 1014 cmos_t == ACPI_TYPE_METHOD) { 1015 sc->light_cmd_on = 0x0c; 1016 sc->light_cmd_off = 0x0d; 1017 sc->cmos_handle = sc->light_handle; 1018 } 1019 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) { 1020 sc->light_cmd_on = 1; 1021 sc->light_cmd_off = 0; 1022 } else 1023 sc->light_handle = NULL; 1024 1025 sc->light_set_supported = (sc->light_handle && 1026 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", 1027 &ledb_handle))); 1028 1029 if (sc->light_get_supported) 1030 return (TRUE); 1031 1032 if (sc->light_set_supported) { 1033 sc->light_val = 0; 1034 return (TRUE); 1035 } 1036 1037 return (FALSE); 1038 1039 case ACPI_THINKPAD_METHOD_BLUETOOTH: 1040 case ACPI_THINKPAD_METHOD_WLAN: 1041 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &dummy))) 1042 return (TRUE); 1043 return (FALSE); 1044 1045 case ACPI_THINKPAD_METHOD_FANSPEED: 1046 /* 1047 * Some models report the fan speed in levels from 0-7 1048 * Newer models report it contiguously 1049 */ 1050 sc->fan_levels = 1051 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) || 1052 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle))); 1053 return (TRUE); 1054 1055 case ACPI_THINKPAD_METHOD_FANLEVEL: 1056 case ACPI_THINKPAD_METHOD_FANSTATUS: 1057 /* 1058 * Fan status is only supported on those models, 1059 * which report fan RPM contiguously, not in levels 1060 */ 1061 if (sc->fan_levels) 1062 return (FALSE); 1063 return (TRUE); 1064 1065 case ACPI_THINKPAD_METHOD_THERMAL: 1066 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, THINKPAD_NAME_THERMAL_GET, &dummy))) { 1067 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, THINKPAD_NAME_THERMAL_UPDT, &dummy)); 1068 return (TRUE); 1069 } 1070 return (FALSE); 1071 1072 case ACPI_THINKPAD_METHOD_HANDLEREVENTS: 1073 return (TRUE); 1074 1075 case ACPI_THINKPAD_METHOD_PRIVACYGUARD: 1076 return (acpi_thinkpad_privacyguard_get(sc) != -1); 1077 } 1078 return (FALSE); 1079 } 1080 1081 static int 1082 acpi_thinkpad_thermal_sysctl(SYSCTL_HANDLER_ARGS) 1083 { 1084 struct acpi_thinkpad_softc *sc; 1085 int error = 0; 1086 char temp_cmd[] = "TMP0"; 1087 int temp[8]; 1088 1089 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1090 1091 sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1; 1092 1093 ACPI_SERIAL_BEGIN(thinkpad); 1094 1095 for (int i = 0; i < 8; ++i) { 1096 temp_cmd[3] = '0' + i; 1097 1098 /* 1099 * The TMPx methods seem to return +/- 128 or 0 1100 * when the respecting sensor is not available 1101 */ 1102 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 1103 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) 1104 temp[i] = -1; 1105 else if (sc->thermal_updt_supported) 1106 /* Temperature is reported in tenth of Kelvin */ 1107 temp[i] = (temp[i] - 2731 + 5) / 10; 1108 } 1109 1110 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req); 1111 1112 ACPI_SERIAL_END(thinkpad); 1113 return (error); 1114 } 1115 1116 1117 static int 1118 acpi_thinkpad_handlerevents_sysctl(SYSCTL_HANDLER_ARGS) 1119 { 1120 struct acpi_thinkpad_softc *sc; 1121 int error = 0; 1122 struct sbuf sb; 1123 char *cp, *ep; 1124 int l, val; 1125 unsigned int handler_events; 1126 char temp[128]; 1127 1128 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1129 1130 sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1; 1131 1132 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 1133 return (ENOMEM); 1134 1135 ACPI_SERIAL_BEGIN(thinkpad); 1136 1137 /* Get old values if this is a get request. */ 1138 if (req->newptr == NULL) { 1139 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++) 1140 if (sc->handler_events & (1U << i)) 1141 sbuf_printf(&sb, "0x%02x ", i + 1); 1142 if (sbuf_len(&sb) == 0) 1143 sbuf_printf(&sb, "NONE"); 1144 } 1145 1146 sbuf_trim(&sb); 1147 sbuf_finish(&sb); 1148 strlcpy(temp, sbuf_data(&sb), sizeof(temp)); 1149 sbuf_delete(&sb); 1150 1151 error = sysctl_handle_string(oidp, temp, sizeof(temp), req); 1152 1153 /* Check for error or no change */ 1154 if (error != 0 || req->newptr == NULL) 1155 goto out; 1156 1157 /* If the user is setting a string, parse it. */ 1158 handler_events = 0; 1159 cp = temp; 1160 while (*cp) { 1161 if (isspace(*cp)) { 1162 cp++; 1163 continue; 1164 } 1165 1166 ep = cp; 1167 1168 while (*ep && !isspace(*ep)) 1169 ep++; 1170 1171 l = ep - cp; 1172 if (l == 0) 1173 break; 1174 1175 if (strncmp(cp, "NONE", 4) == 0) { 1176 cp = ep; 1177 continue; 1178 } 1179 1180 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x')) 1181 val = strtoul(cp, &ep, 16); 1182 else 1183 val = strtoul(cp, &ep, 10); 1184 1185 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) { 1186 cp[l] = '\0'; 1187 device_printf(sc->dev, "invalid event code: %s\n", cp); 1188 error = EINVAL; 1189 goto out; 1190 } 1191 1192 handler_events |= 1 << (val - 1); 1193 1194 cp = ep; 1195 } 1196 1197 sc->handler_events = handler_events; 1198 out: 1199 ACPI_SERIAL_END(thinkpad); 1200 return (error); 1201 } 1202 1203 static int 1204 acpi_thinkpad_brightness_set(struct acpi_thinkpad_softc *sc, int arg) 1205 { 1206 int val, step; 1207 UINT64 val_ec; 1208 ACPI_OBJECT Arg; 1209 ACPI_OBJECT_LIST Args; 1210 ACPI_STATUS status; 1211 1212 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1213 ACPI_SERIAL_ASSERT(thinkpad); 1214 1215 if (arg < 0 || arg > 7) 1216 return (EINVAL); 1217 1218 /* Read the current brightness */ 1219 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, &val_ec, 1); 1220 if (ACPI_FAILURE(status)) 1221 return (status); 1222 1223 if (sc->cmos_handle) { 1224 val = val_ec & THINKPAD_EC_MASK_BRI; 1225 1226 Args.Count = 1; 1227 Args.Pointer = &Arg; 1228 Arg.Type = ACPI_TYPE_INTEGER; 1229 Arg.Integer.Value = (arg > val) ? THINKPAD_CMOS_BRIGHTNESS_UP : 1230 THINKPAD_CMOS_BRIGHTNESS_DOWN; 1231 1232 step = (arg > val) ? 1 : -1; 1233 for (int i = val; i != arg; i += step) { 1234 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 1235 if (ACPI_FAILURE(status)) { 1236 /* Record the last value */ 1237 if (i != val) { 1238 ACPI_EC_WRITE(sc->ec_dev, 1239 THINKPAD_EC_BRIGHTNESS, i - step, 1); 1240 } 1241 return (status); 1242 } 1243 } 1244 } 1245 1246 return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, arg, 1); 1247 } 1248 1249 static int 1250 acpi_thinkpad_bluetooth_set(struct acpi_thinkpad_softc *sc, int arg) 1251 { 1252 int val; 1253 1254 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1255 ACPI_SERIAL_ASSERT(thinkpad); 1256 1257 if (arg < 0 || arg > 1) 1258 return (EINVAL); 1259 1260 val = (arg == 1) ? sc->wlan_bt_flags | THINKPAD_NAME_MASK_BT : 1261 sc->wlan_bt_flags & (~THINKPAD_NAME_MASK_BT); 1262 return acpi_SetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_SET, val); 1263 } 1264 1265 static int 1266 acpi_thinkpad_thinklight_set(struct acpi_thinkpad_softc *sc, int arg) 1267 { 1268 ACPI_OBJECT Arg; 1269 ACPI_OBJECT_LIST Args; 1270 ACPI_STATUS status; 1271 1272 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1273 ACPI_SERIAL_ASSERT(thinkpad); 1274 1275 if (arg < 0 || arg > 1) 1276 return (EINVAL); 1277 1278 if (sc->light_set_supported) { 1279 Args.Count = 1; 1280 Args.Pointer = &Arg; 1281 Arg.Type = ACPI_TYPE_INTEGER; 1282 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off; 1283 1284 status = AcpiEvaluateObject(sc->light_handle, NULL, 1285 &Args, NULL); 1286 if (ACPI_SUCCESS(status)) 1287 sc->light_val = arg; 1288 return (status); 1289 } 1290 1291 return (0); 1292 } 1293 1294 /* 1295 * Helper function to make a get or set ACPI call to the PrivacyGuard handle. 1296 * Only meant to be used internally by the get/set functions below. 1297 */ 1298 static ACPI_STATUS 1299 acpi_thinkpad_privacyguard_acpi_call(struct acpi_thinkpad_softc *sc, bool write, int *arg) 1300 { 1301 ACPI_OBJECT Arg; 1302 ACPI_OBJECT_LIST Args; 1303 ACPI_STATUS status; 1304 ACPI_OBJECT out_obj; 1305 ACPI_BUFFER result; 1306 1307 Arg.Type = ACPI_TYPE_INTEGER; 1308 Arg.Integer.Value = (write ? *arg : 0); 1309 Args.Count = 1; 1310 Args.Pointer = &Arg; 1311 result.Length = sizeof(out_obj); 1312 result.Pointer = &out_obj; 1313 1314 status = AcpiEvaluateObject(sc->handle, 1315 (write ? THINKPAD_NAME_PRIVACYGUARD_SET : THINKPAD_NAME_PRIVACYGUARD_GET), 1316 &Args, &result); 1317 if (ACPI_SUCCESS(status) && !write) 1318 *arg = out_obj.Integer.Value; 1319 1320 return (status); 1321 } 1322 1323 /* 1324 * Returns -1 if the device is not present. 1325 */ 1326 static int 1327 acpi_thinkpad_privacyguard_get(struct acpi_thinkpad_softc *sc) 1328 { 1329 ACPI_STATUS status; 1330 int val; 1331 1332 status = acpi_thinkpad_privacyguard_acpi_call(sc, false, &val); 1333 if (ACPI_SUCCESS(status) && 1334 (val & THINKPAD_FLAG_PRIVACYGUARD_DEVICE_PRESENT)) 1335 return (val & THINKPAD_FLAG_PRIVACYGUARD_ON); 1336 1337 return (-1); 1338 } 1339 1340 static ACPI_STATUS 1341 acpi_thinkpad_privacyguard_set(struct acpi_thinkpad_softc *sc, int arg) 1342 { 1343 if (arg < 0 || arg > 1) 1344 return (AE_BAD_PARAMETER); 1345 1346 return (acpi_thinkpad_privacyguard_acpi_call(sc, true, &arg)); 1347 } 1348 1349 static int 1350 acpi_thinkpad_volume_set(struct acpi_thinkpad_softc *sc, int arg) 1351 { 1352 int val, step; 1353 UINT64 val_ec; 1354 ACPI_OBJECT Arg; 1355 ACPI_OBJECT_LIST Args; 1356 ACPI_STATUS status; 1357 1358 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1359 ACPI_SERIAL_ASSERT(thinkpad); 1360 1361 if (arg < 0 || arg > 14) 1362 return (EINVAL); 1363 1364 /* Read the current volume */ 1365 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1); 1366 if (ACPI_FAILURE(status)) 1367 return (status); 1368 1369 if (sc->cmos_handle) { 1370 val = val_ec & THINKPAD_EC_MASK_VOL; 1371 1372 Args.Count = 1; 1373 Args.Pointer = &Arg; 1374 Arg.Type = ACPI_TYPE_INTEGER; 1375 Arg.Integer.Value = (arg > val) ? THINKPAD_CMOS_VOLUME_UP : 1376 THINKPAD_CMOS_VOLUME_DOWN; 1377 1378 step = (arg > val) ? 1 : -1; 1379 for (int i = val; i != arg; i += step) { 1380 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1381 &Args, NULL); 1382 if (ACPI_FAILURE(status)) { 1383 /* Record the last value */ 1384 if (i != val) { 1385 val_ec = i - step + 1386 (val_ec & (~THINKPAD_EC_MASK_VOL)); 1387 ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, 1388 val_ec, 1); 1389 } 1390 return (status); 1391 } 1392 } 1393 } 1394 1395 val_ec = arg + (val_ec & (~THINKPAD_EC_MASK_VOL)); 1396 return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, val_ec, 1); 1397 } 1398 1399 static int 1400 acpi_thinkpad_mute_set(struct acpi_thinkpad_softc *sc, int arg) 1401 { 1402 UINT64 val_ec; 1403 ACPI_OBJECT Arg; 1404 ACPI_OBJECT_LIST Args; 1405 ACPI_STATUS status; 1406 1407 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1408 ACPI_SERIAL_ASSERT(thinkpad); 1409 1410 if (arg < 0 || arg > 1) 1411 return (EINVAL); 1412 1413 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1); 1414 if (ACPI_FAILURE(status)) 1415 return (status); 1416 1417 if (sc->cmos_handle) { 1418 Args.Count = 1; 1419 Args.Pointer = &Arg; 1420 Arg.Type = ACPI_TYPE_INTEGER; 1421 Arg.Integer.Value = THINKPAD_CMOS_VOLUME_MUTE; 1422 1423 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 1424 if (ACPI_FAILURE(status)) 1425 return (status); 1426 } 1427 1428 val_ec = (arg == 1) ? val_ec | THINKPAD_EC_MASK_MUTE : 1429 val_ec & (~THINKPAD_EC_MASK_MUTE); 1430 return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, val_ec, 1); 1431 } 1432 1433 static void 1434 acpi_thinkpad_eventhandler(struct acpi_thinkpad_softc *sc, int arg) 1435 { 1436 int val; 1437 UINT64 val_ec; 1438 ACPI_STATUS status; 1439 1440 ACPI_SERIAL_BEGIN(thinkpad); 1441 switch (arg) { 1442 #if 0 /* XXX */ 1443 case THINKPAD_EVENT_SUSPEND_TO_RAM: 1444 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 1445 break; 1446 #endif 1447 1448 case THINKPAD_EVENT_BLUETOOTH: 1449 acpi_thinkpad_bluetooth_set(sc, (sc->wlan_bt_flags == 0)); 1450 break; 1451 1452 case THINKPAD_EVENT_BRIGHTNESS_UP: 1453 case THINKPAD_EVENT_BRIGHTNESS_DOWN: 1454 /* Read the current brightness */ 1455 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, 1456 &val_ec, 1); 1457 if (ACPI_FAILURE(status)) 1458 goto done; 1459 1460 val = val_ec & THINKPAD_EC_MASK_BRI; 1461 val = (arg == THINKPAD_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1; 1462 acpi_thinkpad_brightness_set(sc, val); 1463 break; 1464 1465 case THINKPAD_EVENT_THINKLIGHT: 1466 acpi_thinkpad_thinklight_set(sc, (sc->light_val == 0)); 1467 break; 1468 1469 case THINKPAD_EVENT_VOLUME_UP: 1470 case THINKPAD_EVENT_VOLUME_DOWN: 1471 /* Read the current volume */ 1472 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1); 1473 if (ACPI_FAILURE(status)) 1474 goto done; 1475 1476 val = val_ec & THINKPAD_EC_MASK_VOL; 1477 val = (arg == THINKPAD_EVENT_VOLUME_UP) ? val + 1 : val - 1; 1478 acpi_thinkpad_volume_set(sc, val); 1479 break; 1480 1481 case THINKPAD_EVENT_MUTE: 1482 /* Read the current value */ 1483 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1); 1484 if (ACPI_FAILURE(status)) 1485 goto done; 1486 1487 val = ((val_ec & THINKPAD_EC_MASK_MUTE) == THINKPAD_EC_MASK_MUTE); 1488 acpi_thinkpad_mute_set(sc, (val == 0)); 1489 break; 1490 1491 default: 1492 break; 1493 } 1494 done: 1495 ACPI_SERIAL_END(thinkpad); 1496 } 1497 1498 static void 1499 acpi_thinkpad_notify(ACPI_HANDLE h, UINT32 notify, void *context) 1500 { 1501 int event, arg, type; 1502 device_t dev = context; 1503 struct acpi_thinkpad_softc *sc = device_get_softc(dev); 1504 1505 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); 1506 1507 if (notify != 0x80) 1508 device_printf(sc->dev, "unknown notify: %#x\n", notify); 1509 1510 for (;;) { 1511 acpi_GetInteger(acpi_get_handle(dev), THINKPAD_NAME_EVENTS_GET, &event); 1512 if (event == 0) 1513 break; 1514 1515 type = (event >> 12) & 0xf; 1516 arg = event & 0xfff; 1517 switch (type) { 1518 case 1: 1519 if (!(sc->events_availmask & (1 << (arg - 1)))) { 1520 device_printf(dev, "Unknown key %d\n", arg); 1521 break; 1522 } 1523 1524 /* Execute event handler */ 1525 if (sc->handler_events & (1 << (arg - 1))) 1526 acpi_thinkpad_eventhandler(sc, (arg & 0xff)); 1527 1528 /* Notify devd(8) */ 1529 acpi_UserNotify("THINKPAD", h, (arg & 0xff)); 1530 break; 1531 default: 1532 break; 1533 } 1534 } 1535 } 1536 1537 static void 1538 acpi_thinkpad_refresh(void *arg) 1539 { 1540 struct acpi_thinkpad_softc *sc = (struct acpi_thinkpad_softc *)arg; 1541 int i, data; 1542 1543 for (i = 0; i < THINKPAD_TEMP_SENSORS; i++) { 1544 char temp_cmd[] = "TMP0"; 1545 1546 temp_cmd[3] = '0' + i; 1547 /* 1548 * The TMPx methods seem to return +/- 128 or 0 1549 * when the respecting sensor is not available 1550 */ 1551 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 1552 &data)) || ABS(data) == 128 || data == 0) { 1553 sc->sensors[i].flags |= SENSOR_FINVALID; 1554 continue; 1555 } 1556 if (sc->thermal_updt_supported) 1557 /* Temperature is reported in tenth of Kelvin */ 1558 sc->sensors[i].value = data * 100000 - 50000; 1559 else 1560 sc->sensors[i].value = data * 1000000 + 273150000; 1561 sc->sensors[i].flags &= ~SENSOR_FINVALID; 1562 } 1563 1564 if (sc->fan_handle) { 1565 if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, 1566 NULL, &data))) 1567 sc->sensors[i].flags |= SENSOR_FINVALID; 1568 sc->sensors[i].value = data; 1569 sc->sensors[i].flags &= ~SENSOR_FINVALID; 1570 } else { 1571 UINT64 speed; 1572 1573 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSPEED, &speed, 2); 1574 sc->sensors[i].value = speed; 1575 sc->sensors[i].flags &= ~SENSOR_FINVALID; 1576 } 1577 } 1578