1 /*- 2 * Copyright (c) 2004 Takanori Watanabe 3 * Copyright (c) 2005 Markus Brueffer <markus@FreeBSD.org> 4 * All rights reserved. 5 * Copyright (c) 2020 Ali Abdallah <ali.abdallah@suse.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 /* 33 * Driver for extra ACPI-controlled gadgets found on ThinkPad laptops. 34 * Inspired by the ibm-acpi and tpb projects which implement these features 35 * on Linux. 36 * 37 * acpi-ibm: <http://ibm-acpi.sourceforge.net/> 38 * tpb: <http://www.nongnu.org/tpb/> 39 */ 40 41 #include "opt_acpi.h" 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/bus.h> 46 #include <machine/cpufunc.h> 47 48 #include <contrib/dev/acpica/include/acpi.h> 49 #include <contrib/dev/acpica/include/accommon.h> 50 51 #include "acpi_if.h" 52 #include <sys/module.h> 53 #include <dev/acpica/acpivar.h> 54 #include <dev/led/led.h> 55 #include <sys/power.h> 56 #include <sys/sbuf.h> 57 #include <sys/sysctl.h> 58 #include <isa/rtc.h> 59 60 #define _COMPONENT ACPI_OEM 61 ACPI_MODULE_NAME("IBM") 62 63 /* Internal methods */ 64 #define ACPI_IBM_METHOD_EVENTS 1 65 #define ACPI_IBM_METHOD_EVENTMASK 2 66 #define ACPI_IBM_METHOD_HOTKEY 3 67 #define ACPI_IBM_METHOD_BRIGHTNESS 4 68 #define ACPI_IBM_METHOD_VOLUME 5 69 #define ACPI_IBM_METHOD_MUTE 6 70 #define ACPI_IBM_METHOD_THINKLIGHT 7 71 #define ACPI_IBM_METHOD_BLUETOOTH 8 72 #define ACPI_IBM_METHOD_WLAN 9 73 #define ACPI_IBM_METHOD_FANSPEED 10 74 #define ACPI_IBM_METHOD_FANLEVEL 11 75 #define ACPI_IBM_METHOD_FANSTATUS 12 76 #define ACPI_IBM_METHOD_THERMAL 13 77 #define ACPI_IBM_METHOD_HANDLEREVENTS 14 78 #define ACPI_IBM_METHOD_MIC_LED 15 79 #define ACPI_IBM_METHOD_PRIVACYGUARD 16 80 81 /* Hotkeys/Buttons */ 82 #define IBM_RTC_HOTKEY1 0x64 83 #define IBM_RTC_MASK_HOME (1 << 0) 84 #define IBM_RTC_MASK_SEARCH (1 << 1) 85 #define IBM_RTC_MASK_MAIL (1 << 2) 86 #define IBM_RTC_MASK_WLAN (1 << 5) 87 #define IBM_RTC_HOTKEY2 0x65 88 #define IBM_RTC_MASK_THINKPAD (1 << 3) 89 #define IBM_RTC_MASK_ZOOM (1 << 5) 90 #define IBM_RTC_MASK_VIDEO (1 << 6) 91 #define IBM_RTC_MASK_HIBERNATE (1 << 7) 92 #define IBM_RTC_THINKLIGHT 0x66 93 #define IBM_RTC_MASK_THINKLIGHT (1 << 4) 94 #define IBM_RTC_SCREENEXPAND 0x67 95 #define IBM_RTC_MASK_SCREENEXPAND (1 << 5) 96 #define IBM_RTC_BRIGHTNESS 0x6c 97 #define IBM_RTC_MASK_BRIGHTNESS (1 << 5) 98 #define IBM_RTC_VOLUME 0x6e 99 #define IBM_RTC_MASK_VOLUME (1 << 7) 100 101 /* Embedded Controller registers */ 102 #define IBM_EC_BRIGHTNESS 0x31 103 #define IBM_EC_MASK_BRI 0x7 104 #define IBM_EC_VOLUME 0x30 105 #define IBM_EC_MASK_VOL 0xf 106 #define IBM_EC_MASK_MUTE (1 << 6) 107 #define IBM_EC_FANSTATUS 0x2F 108 #define IBM_EC_MASK_FANLEVEL 0x3f 109 #define IBM_EC_MASK_FANUNTHROTTLED (1 << 6) 110 #define IBM_EC_MASK_FANSTATUS (1 << 7) 111 #define IBM_EC_FANSPEED 0x84 112 113 /* CMOS Commands */ 114 #define IBM_CMOS_VOLUME_DOWN 0 115 #define IBM_CMOS_VOLUME_UP 1 116 #define IBM_CMOS_VOLUME_MUTE 2 117 #define IBM_CMOS_BRIGHTNESS_UP 4 118 #define IBM_CMOS_BRIGHTNESS_DOWN 5 119 120 /* ACPI methods */ 121 #define IBM_NAME_KEYLIGHT "KBLT" 122 #define IBM_NAME_WLAN_BT_GET "GBDC" 123 #define IBM_NAME_WLAN_BT_SET "SBDC" 124 #define IBM_NAME_MASK_BT (1 << 1) 125 #define IBM_NAME_MASK_WLAN (1 << 2) 126 #define IBM_NAME_THERMAL_GET "TMP7" 127 #define IBM_NAME_THERMAL_UPDT "UPDT" 128 #define IBM_NAME_PRIVACYGUARD_GET "GSSS" 129 #define IBM_NAME_PRIVACYGUARD_SET "SSSS" 130 131 #define IBM_NAME_EVENTS_STATUS_GET "DHKC" 132 #define IBM_NAME_EVENTS_MASK_GET "DHKN" 133 #define IBM_NAME_EVENTS_STATUS_SET "MHKC" 134 #define IBM_NAME_EVENTS_MASK_SET "MHKM" 135 #define IBM_NAME_EVENTS_GET "MHKP" 136 #define IBM_NAME_EVENTS_AVAILMASK "MHKA" 137 138 /* Event Code */ 139 #define IBM_EVENT_LCD_BACKLIGHT 0x03 140 #define IBM_EVENT_SUSPEND_TO_RAM 0x04 141 #define IBM_EVENT_BLUETOOTH 0x05 142 #define IBM_EVENT_SCREEN_EXPAND 0x07 143 #define IBM_EVENT_SUSPEND_TO_DISK 0x0c 144 #define IBM_EVENT_BRIGHTNESS_UP 0x10 145 #define IBM_EVENT_BRIGHTNESS_DOWN 0x11 146 #define IBM_EVENT_THINKLIGHT 0x12 147 #define IBM_EVENT_ZOOM 0x14 148 #define IBM_EVENT_VOLUME_UP 0x15 149 #define IBM_EVENT_VOLUME_DOWN 0x16 150 #define IBM_EVENT_MUTE 0x17 151 #define IBM_EVENT_ACCESS_IBM_BUTTON 0x18 152 153 /* Device-specific register flags */ 154 #define IBM_FLAG_PRIVACYGUARD_DEVICE_PRESENT 0x10000 155 #define IBM_FLAG_PRIVACYGUARD_ON 0x1 156 157 #define ABS(x) (((x) < 0)? -(x) : (x)) 158 159 struct acpi_ibm_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 unsigned int handler_events; 200 201 struct sysctl_ctx_list *sysctl_ctx; 202 struct sysctl_oid *sysctl_tree; 203 }; 204 205 static struct { 206 char *name; 207 int method; 208 char *description; 209 int flag_rdonly; 210 } acpi_ibm_sysctls[] = { 211 { 212 .name = "events", 213 .method = ACPI_IBM_METHOD_EVENTS, 214 .description = "ACPI events enable", 215 }, 216 { 217 .name = "eventmask", 218 .method = ACPI_IBM_METHOD_EVENTMASK, 219 .description = "ACPI eventmask", 220 }, 221 { 222 .name = "hotkey", 223 .method = ACPI_IBM_METHOD_HOTKEY, 224 .description = "Key Status", 225 .flag_rdonly = 1 226 }, 227 { 228 .name = "lcd_brightness", 229 .method = ACPI_IBM_METHOD_BRIGHTNESS, 230 .description = "LCD Brightness", 231 }, 232 { 233 .name = "volume", 234 .method = ACPI_IBM_METHOD_VOLUME, 235 .description = "Volume", 236 }, 237 { 238 .name = "mute", 239 .method = ACPI_IBM_METHOD_MUTE, 240 .description = "Mute", 241 }, 242 { 243 .name = "thinklight", 244 .method = ACPI_IBM_METHOD_THINKLIGHT, 245 .description = "Thinklight enable", 246 }, 247 { 248 .name = "bluetooth", 249 .method = ACPI_IBM_METHOD_BLUETOOTH, 250 .description = "Bluetooth enable", 251 }, 252 { 253 .name = "wlan", 254 .method = ACPI_IBM_METHOD_WLAN, 255 .description = "WLAN enable", 256 .flag_rdonly = 1 257 }, 258 { 259 .name = "fan_speed", 260 .method = ACPI_IBM_METHOD_FANSPEED, 261 .description = "Fan speed", 262 .flag_rdonly = 1 263 }, 264 { 265 .name = "fan_level", 266 .method = ACPI_IBM_METHOD_FANLEVEL, 267 .description = "Fan level, 0-7 (recommended max), " 268 "8 (unthrottled, full-speed)", 269 }, 270 { 271 .name = "fan", 272 .method = ACPI_IBM_METHOD_FANSTATUS, 273 .description = "Fan enable", 274 }, 275 { 276 .name = "mic_led", 277 .method = ACPI_IBM_METHOD_MIC_LED, 278 .description = "Mic led", 279 }, 280 { 281 .name = "privacyguard", 282 .method = ACPI_IBM_METHOD_PRIVACYGUARD, 283 .description = "PrivacyGuard enable", 284 }, 285 { NULL, 0, NULL, 0 } 286 }; 287 288 /* 289 * Per-model default list of event mask. 290 */ 291 #define ACPI_IBM_HKEY_RFKILL_MASK (1 << 4) 292 #define ACPI_IBM_HKEY_DSWITCH_MASK (1 << 6) 293 #define ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK (1 << 15) 294 #define ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK (1 << 16) 295 #define ACPI_IBM_HKEY_SEARCH_MASK (1 << 18) 296 #define ACPI_IBM_HKEY_MICMUTE_MASK (1 << 26) 297 #define ACPI_IBM_HKEY_SETTINGS_MASK (1 << 28) 298 #define ACPI_IBM_HKEY_VIEWOPEN_MASK (1 << 30) 299 #define ACPI_IBM_HKEY_VIEWALL_MASK (1 << 31) 300 301 struct acpi_ibm_models { 302 const char *maker; 303 const char *product; 304 uint32_t eventmask; 305 } acpi_ibm_models[] = { 306 { "LENOVO", "20BSCTO1WW", 307 ACPI_IBM_HKEY_RFKILL_MASK | 308 ACPI_IBM_HKEY_DSWITCH_MASK | 309 ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK | 310 ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK | 311 ACPI_IBM_HKEY_SEARCH_MASK | 312 ACPI_IBM_HKEY_MICMUTE_MASK | 313 ACPI_IBM_HKEY_SETTINGS_MASK | 314 ACPI_IBM_HKEY_VIEWOPEN_MASK | 315 ACPI_IBM_HKEY_VIEWALL_MASK 316 } 317 }; 318 319 ACPI_SERIAL_DECL(ibm, "ThinkPad ACPI Extras"); 320 321 static int acpi_ibm_probe(device_t dev); 322 static int acpi_ibm_attach(device_t dev); 323 static int acpi_ibm_detach(device_t dev); 324 static int acpi_ibm_resume(device_t dev); 325 326 static void ibm_led(void *softc, int onoff); 327 static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused); 328 329 static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS); 330 static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method); 331 static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method); 332 static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val); 333 334 static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val); 335 static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS); 336 static int acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS); 337 static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context); 338 339 static int acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg); 340 static int acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg); 341 static int acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg); 342 static int acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg); 343 static int acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg); 344 static int acpi_ibm_privacyguard_get(struct acpi_ibm_softc *sc); 345 static ACPI_STATUS acpi_ibm_privacyguard_set(struct acpi_ibm_softc *sc, int arg); 346 static ACPI_STATUS acpi_ibm_privacyguard_acpi_call(struct acpi_ibm_softc *sc, bool write, int *arg); 347 348 static int acpi_status_to_errno(ACPI_STATUS status); 349 350 static device_method_t acpi_ibm_methods[] = { 351 /* Device interface */ 352 DEVMETHOD(device_probe, acpi_ibm_probe), 353 DEVMETHOD(device_attach, acpi_ibm_attach), 354 DEVMETHOD(device_detach, acpi_ibm_detach), 355 DEVMETHOD(device_resume, acpi_ibm_resume), 356 357 DEVMETHOD_END 358 }; 359 360 static driver_t acpi_ibm_driver = { 361 "acpi_ibm", 362 acpi_ibm_methods, 363 sizeof(struct acpi_ibm_softc), 364 }; 365 366 static devclass_t acpi_ibm_devclass; 367 368 DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass, 0, 0); 369 MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1); 370 static char *ibm_ids[] = {"IBM0068", "LEN0068", "LEN0268", NULL}; 371 372 static int 373 acpi_status_to_errno(ACPI_STATUS status) 374 { 375 switch (status) { 376 case AE_OK: 377 return (0); 378 case AE_BAD_PARAMETER: 379 return (EINVAL); 380 default: 381 return (ENODEV); 382 } 383 } 384 385 static void 386 ibm_led(void *softc, int onoff) 387 { 388 struct acpi_ibm_softc *sc = softc; 389 390 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 391 392 if (sc->led_busy) 393 return; 394 395 sc->led_busy = 1; 396 sc->led_state = onoff; 397 398 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc); 399 } 400 401 static void 402 ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused) 403 { 404 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 405 406 ACPI_SERIAL_BEGIN(ibm); 407 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state); 408 ACPI_SERIAL_END(ibm); 409 410 sc->led_busy = 0; 411 } 412 413 static int 414 acpi_ibm_mic_led_set(struct acpi_ibm_softc *sc, int arg) 415 { 416 ACPI_OBJECT_LIST input; 417 ACPI_OBJECT params[1]; 418 ACPI_STATUS status; 419 420 if (arg < 0 || arg > 1) 421 return (EINVAL); 422 423 if (sc->mic_led_handle) { 424 params[0].Type = ACPI_TYPE_INTEGER; 425 params[0].Integer.Value = 0; 426 /* mic led: 0 off, 2 on */ 427 if (arg == 1) 428 params[0].Integer.Value = 2; 429 430 input.Pointer = params; 431 input.Count = 1; 432 433 status = AcpiEvaluateObject(sc->handle, "MMTS", &input, NULL); 434 if (ACPI_SUCCESS(status)) 435 sc->mic_led_state = arg; 436 return (status); 437 } 438 439 return (0); 440 } 441 442 static int 443 acpi_ibm_probe(device_t dev) 444 { 445 int rv; 446 447 if (acpi_disabled("ibm") || 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, "initialmask", 500 CTLFLAG_RD, &sc->events_initialmask, 0, 501 "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 case 1: 507 /* The availmask is the bitmask of supported events */ 508 if (ACPI_FAILURE(acpi_GetInteger(sc->handle, 509 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask))) 510 sc->events_availmask = 0xffffffff; 511 break; 512 513 case 2: 514 result.Length = sizeof(out_obj); 515 result.Pointer = &out_obj; 516 params[0].Type = ACPI_TYPE_INTEGER; 517 params[0].Integer.Value = 1; 518 input.Pointer = params; 519 input.Count = 1; 520 521 sc->events_availmask = 0xffffffff; 522 523 if (ACPI_SUCCESS(AcpiEvaluateObject (sc->handle, 524 IBM_NAME_EVENTS_AVAILMASK, &input, &result))) 525 sc->events_availmask = out_obj.Integer.Value; 526 break; 527 default: 528 device_printf(dev, "Unknown firmware version 0x%x\n", hkey); 529 break; 530 } 531 } else 532 sc->events_availmask = 0xffffffff; 533 534 SYSCTL_ADD_UINT(sc->sysctl_ctx, 535 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 536 "availmask", CTLFLAG_RD, 537 &sc->events_availmask, 0, "Mask of supported events"); 538 } 539 540 /* Hook up proc nodes */ 541 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 542 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method)) 543 continue; 544 545 if (acpi_ibm_sysctls[i].flag_rdonly != 0) { 546 SYSCTL_ADD_PROC(sc->sysctl_ctx, 547 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, 548 acpi_ibm_sysctls[i].name, 549 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 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, 556 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 557 sc, i, acpi_ibm_sysctl, "I", 558 acpi_ibm_sysctls[i].description); 559 } 560 } 561 562 /* Hook up thermal node */ 563 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) { 564 SYSCTL_ADD_PROC(sc->sysctl_ctx, 565 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO, "thermal", 566 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, sc, 0, 567 acpi_ibm_thermal_sysctl, "I", "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, "handlerevents", 574 CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_NEEDGIANT, sc, 0, 575 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 return (0); 614 } 615 616 static int 617 acpi_ibm_detach(device_t dev) 618 { 619 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 620 621 struct acpi_ibm_softc *sc = device_get_softc(dev); 622 623 /* Disable events and restore eventmask */ 624 ACPI_SERIAL_BEGIN(ibm); 625 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0); 626 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask); 627 ACPI_SERIAL_END(ibm); 628 629 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify); 630 631 if (sc->led_dev != NULL) 632 led_destroy(sc->led_dev); 633 634 return (0); 635 } 636 637 static int 638 acpi_ibm_resume(device_t dev) 639 { 640 struct acpi_ibm_softc *sc = device_get_softc(dev); 641 642 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__); 643 644 ACPI_SERIAL_BEGIN(ibm); 645 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) { 646 int val; 647 648 val = acpi_ibm_sysctl_get(sc, i); 649 650 if (acpi_ibm_sysctls[i].flag_rdonly != 0) 651 continue; 652 653 acpi_ibm_sysctl_set(sc, i, val); 654 } 655 ACPI_SERIAL_END(ibm); 656 657 /* The mic led does not turn back on when sysctl_set is called in the above loop */ 658 acpi_ibm_mic_led_set(sc, sc->mic_led_state); 659 660 return (0); 661 } 662 663 static int 664 acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val) 665 { 666 ACPI_OBJECT arg[2]; 667 ACPI_OBJECT_LIST args; 668 ACPI_STATUS status; 669 670 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 671 ACPI_SERIAL_ASSERT(ibm); 672 673 args.Count = 2; 674 args.Pointer = arg; 675 arg[0].Type = ACPI_TYPE_INTEGER; 676 arg[1].Type = ACPI_TYPE_INTEGER; 677 678 for (int i = 0; i < 32; ++i) { 679 arg[0].Integer.Value = i + 1; 680 arg[1].Integer.Value = (((1 << i) & val) != 0); 681 status = AcpiEvaluateObject(sc->handle, 682 IBM_NAME_EVENTS_MASK_SET, &args, NULL); 683 684 if (ACPI_FAILURE(status)) 685 return (status); 686 } 687 688 return (0); 689 } 690 691 static int 692 acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS) 693 { 694 struct acpi_ibm_softc *sc; 695 int arg; 696 int error = 0; 697 int function; 698 int method; 699 700 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 701 702 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 703 function = oidp->oid_arg2; 704 method = acpi_ibm_sysctls[function].method; 705 706 ACPI_SERIAL_BEGIN(ibm); 707 arg = acpi_ibm_sysctl_get(sc, method); 708 error = sysctl_handle_int(oidp, &arg, 0, req); 709 710 /* Sanity check */ 711 if (error != 0 || req->newptr == NULL) 712 goto out; 713 714 /* Update */ 715 error = acpi_ibm_sysctl_set(sc, method, arg); 716 717 out: 718 ACPI_SERIAL_END(ibm); 719 return (error); 720 } 721 722 static int 723 acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method) 724 { 725 UINT64 val_ec; 726 int val = 0, key; 727 728 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 729 ACPI_SERIAL_ASSERT(ibm); 730 731 switch (method) { 732 case ACPI_IBM_METHOD_EVENTS: 733 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val); 734 break; 735 736 case ACPI_IBM_METHOD_EVENTMASK: 737 if (sc->events_mask_supported) 738 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val); 739 break; 740 741 case ACPI_IBM_METHOD_HOTKEY: 742 /* 743 * Construct the hotkey as a bitmask as illustrated below. 744 * Note that whenever a key was pressed, the respecting bit 745 * toggles and nothing else changes. 746 * +--+--+-+-+-+-+-+-+-+-+-+-+ 747 * |11|10|9|8|7|6|5|4|3|2|1|0| 748 * +--+--+-+-+-+-+-+-+-+-+-+-+ 749 * | | | | | | | | | | | | 750 * | | | | | | | | | | | +- Home Button 751 * | | | | | | | | | | +--- Search Button 752 * | | | | | | | | | +----- Mail Button 753 * | | | | | | | | +------- Thinkpad Button 754 * | | | | | | | +--------- Zoom (Fn + Space) 755 * | | | | | | +----------- WLAN Button 756 * | | | | | +------------- Video Button 757 * | | | | +--------------- Hibernate Button 758 * | | | +----------------- Thinklight Button 759 * | | +------------------- Screen expand (Fn + F8) 760 * | +--------------------- Brightness 761 * +------------------------ Volume/Mute 762 */ 763 key = rtcin(IBM_RTC_HOTKEY1); 764 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key; 765 key = rtcin(IBM_RTC_HOTKEY2); 766 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key; 767 val |= (IBM_RTC_MASK_ZOOM & key) >> 1; 768 key = rtcin(IBM_RTC_THINKLIGHT); 769 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 770 key = rtcin(IBM_RTC_SCREENEXPAND); 771 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4; 772 key = rtcin(IBM_RTC_BRIGHTNESS); 773 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5; 774 key = rtcin(IBM_RTC_VOLUME); 775 val |= (IBM_RTC_MASK_VOLUME & key) << 4; 776 break; 777 778 case ACPI_IBM_METHOD_BRIGHTNESS: 779 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 780 val = val_ec & IBM_EC_MASK_BRI; 781 break; 782 783 case ACPI_IBM_METHOD_VOLUME: 784 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 785 val = val_ec & IBM_EC_MASK_VOL; 786 break; 787 788 case ACPI_IBM_METHOD_MUTE: 789 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 790 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 791 break; 792 793 case ACPI_IBM_METHOD_THINKLIGHT: 794 if (sc->light_get_supported) 795 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val); 796 else 797 val = sc->light_val; 798 break; 799 800 case ACPI_IBM_METHOD_BLUETOOTH: 801 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 802 sc->wlan_bt_flags = val; 803 val = ((val & IBM_NAME_MASK_BT) != 0); 804 break; 805 806 case ACPI_IBM_METHOD_WLAN: 807 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val); 808 sc->wlan_bt_flags = val; 809 val = ((val & IBM_NAME_MASK_WLAN) != 0); 810 break; 811 812 case ACPI_IBM_METHOD_FANSPEED: 813 if (sc->fan_handle) { 814 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val))) 815 val = -1; 816 } else { 817 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2); 818 val = val_ec; 819 } 820 break; 821 822 case ACPI_IBM_METHOD_FANLEVEL: 823 /* 824 * The IBM_EC_FANSTATUS register works as follows: 825 * Bit 0-5 indicate the level at which the fan operates. Only 826 * values between 0 and 7 have an effect. Everything 827 * above 7 is treated the same as level 7 828 * Bit 6 overrides the fan speed limit if set to 1 829 * Bit 7 indicates at which mode the fan operates: 830 * manual (0) or automatic (1) 831 */ 832 if (!sc->fan_handle) { 833 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 834 if (val_ec & IBM_EC_MASK_FANUNTHROTTLED) 835 val = 8; 836 else 837 val = val_ec & IBM_EC_MASK_FANLEVEL; 838 } 839 break; 840 841 case ACPI_IBM_METHOD_FANSTATUS: 842 if (!sc->fan_handle) { 843 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 844 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS; 845 } else 846 val = -1; 847 break; 848 849 case ACPI_IBM_METHOD_MIC_LED: 850 if (sc->mic_led_handle) 851 return sc->mic_led_state; 852 else 853 val = -1; 854 break; 855 856 case ACPI_IBM_METHOD_PRIVACYGUARD: 857 val = acpi_ibm_privacyguard_get(sc); 858 break; 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 > 8) 921 return (EINVAL); 922 923 if (!sc->fan_handle) { 924 /* Read the current fan status. */ 925 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 926 val = val_ec & ~(IBM_EC_MASK_FANLEVEL | 927 IBM_EC_MASK_FANUNTHROTTLED); 928 929 if (arg == 8) 930 /* Full speed, set the unthrottled bit. */ 931 val |= 7 | IBM_EC_MASK_FANUNTHROTTLED; 932 else 933 val |= arg; 934 935 return (ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val, 936 1)); 937 } 938 break; 939 940 case ACPI_IBM_METHOD_FANSTATUS: 941 if (arg < 0 || arg > 1) 942 return (EINVAL); 943 944 if (!sc->fan_handle) { 945 /* Read the current fanstatus */ 946 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1); 947 948 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, 949 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1); 950 } 951 break; 952 } 953 954 return (0); 955 } 956 957 static int 958 acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method) 959 { 960 int dummy; 961 ACPI_OBJECT_TYPE cmos_t; 962 ACPI_HANDLE ledb_handle; 963 964 switch (method) { 965 case ACPI_IBM_METHOD_EVENTS: 966 return (TRUE); 967 968 case ACPI_IBM_METHOD_EVENTMASK: 969 return (sc->events_mask_supported); 970 971 case ACPI_IBM_METHOD_HOTKEY: 972 case ACPI_IBM_METHOD_BRIGHTNESS: 973 case ACPI_IBM_METHOD_VOLUME: 974 case ACPI_IBM_METHOD_MUTE: 975 /* EC is required here, which was already checked before */ 976 return (TRUE); 977 978 case ACPI_IBM_METHOD_MIC_LED: 979 if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "MMTS", &sc->mic_led_handle))) 980 { 981 /* Turn off mic led by default */ 982 acpi_ibm_mic_led_set(sc, 0); 983 return (TRUE); 984 } else 985 sc->mic_led_handle = NULL; 986 return (FALSE); 987 988 case ACPI_IBM_METHOD_THINKLIGHT: 989 sc->cmos_handle = NULL; 990 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger( 991 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val)); 992 993 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) || 994 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) || 995 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) && 996 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) && 997 cmos_t == ACPI_TYPE_METHOD) { 998 sc->light_cmd_on = 0x0c; 999 sc->light_cmd_off = 0x0d; 1000 sc->cmos_handle = sc->light_handle; 1001 } 1002 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) { 1003 sc->light_cmd_on = 1; 1004 sc->light_cmd_off = 0; 1005 } else 1006 sc->light_handle = NULL; 1007 1008 sc->light_set_supported = (sc->light_handle && 1009 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle))); 1010 1011 if (sc->light_get_supported) 1012 return (TRUE); 1013 1014 if (sc->light_set_supported) { 1015 sc->light_val = 0; 1016 return (TRUE); 1017 } 1018 1019 return (FALSE); 1020 1021 case ACPI_IBM_METHOD_BLUETOOTH: 1022 case ACPI_IBM_METHOD_WLAN: 1023 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy))) 1024 return (TRUE); 1025 return (FALSE); 1026 1027 case ACPI_IBM_METHOD_FANSPEED: 1028 /* 1029 * Some models report the fan speed in levels from 0-7 1030 * Newer models report it contiguously 1031 */ 1032 sc->fan_levels = 1033 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) || 1034 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle))); 1035 return (TRUE); 1036 1037 case ACPI_IBM_METHOD_FANLEVEL: 1038 case ACPI_IBM_METHOD_FANSTATUS: 1039 /* 1040 * Fan status is only supported on those models, 1041 * which report fan RPM contiguously, not in levels 1042 */ 1043 if (sc->fan_levels) 1044 return (FALSE); 1045 return (TRUE); 1046 1047 case ACPI_IBM_METHOD_THERMAL: 1048 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) { 1049 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy)); 1050 return (TRUE); 1051 } 1052 return (FALSE); 1053 1054 case ACPI_IBM_METHOD_HANDLEREVENTS: 1055 return (TRUE); 1056 1057 case ACPI_IBM_METHOD_PRIVACYGUARD: 1058 return (acpi_ibm_privacyguard_get(sc) != -1); 1059 } 1060 return (FALSE); 1061 } 1062 1063 static int 1064 acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS) 1065 { 1066 struct acpi_ibm_softc *sc; 1067 int error = 0; 1068 char temp_cmd[] = "TMP0"; 1069 int temp[8]; 1070 1071 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1072 1073 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 1074 1075 ACPI_SERIAL_BEGIN(ibm); 1076 1077 for (int i = 0; i < 8; ++i) { 1078 temp_cmd[3] = '0' + i; 1079 1080 /* 1081 * The TMPx methods seem to return +/- 128 or 0 1082 * when the respecting sensor is not available 1083 */ 1084 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd, 1085 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) 1086 temp[i] = -1; 1087 else if (sc->thermal_updt_supported) 1088 /* Temperature is reported in tenth of Kelvin */ 1089 temp[i] = (temp[i] - 2731 + 5) / 10; 1090 } 1091 1092 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req); 1093 1094 ACPI_SERIAL_END(ibm); 1095 return (error); 1096 } 1097 1098 static int 1099 acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS) 1100 { 1101 struct acpi_ibm_softc *sc; 1102 int error = 0; 1103 struct sbuf sb; 1104 char *cp, *ep; 1105 int l, val; 1106 unsigned int handler_events; 1107 char temp[128]; 1108 1109 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1110 1111 sc = (struct acpi_ibm_softc *)oidp->oid_arg1; 1112 1113 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL) 1114 return (ENOMEM); 1115 1116 ACPI_SERIAL_BEGIN(ibm); 1117 1118 /* Get old values if this is a get request. */ 1119 if (req->newptr == NULL) { 1120 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++) 1121 if (sc->handler_events & (1 << i)) 1122 sbuf_printf(&sb, "0x%02x ", i + 1); 1123 if (sbuf_len(&sb) == 0) 1124 sbuf_printf(&sb, "NONE"); 1125 } 1126 1127 sbuf_trim(&sb); 1128 sbuf_finish(&sb); 1129 strlcpy(temp, sbuf_data(&sb), sizeof(temp)); 1130 sbuf_delete(&sb); 1131 1132 error = sysctl_handle_string(oidp, temp, sizeof(temp), req); 1133 1134 /* Check for error or no change */ 1135 if (error != 0 || req->newptr == NULL) 1136 goto out; 1137 1138 /* If the user is setting a string, parse it. */ 1139 handler_events = 0; 1140 cp = temp; 1141 while (*cp) { 1142 if (isspace(*cp)) { 1143 cp++; 1144 continue; 1145 } 1146 1147 ep = cp; 1148 1149 while (*ep && !isspace(*ep)) 1150 ep++; 1151 1152 l = ep - cp; 1153 if (l == 0) 1154 break; 1155 1156 if (strncmp(cp, "NONE", 4) == 0) { 1157 cp = ep; 1158 continue; 1159 } 1160 1161 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x')) 1162 val = strtoul(cp, &ep, 16); 1163 else 1164 val = strtoul(cp, &ep, 10); 1165 1166 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) { 1167 cp[l] = '\0'; 1168 device_printf(sc->dev, "invalid event code: %s\n", cp); 1169 error = EINVAL; 1170 goto out; 1171 } 1172 1173 handler_events |= 1 << (val - 1); 1174 1175 cp = ep; 1176 } 1177 1178 sc->handler_events = handler_events; 1179 out: 1180 ACPI_SERIAL_END(ibm); 1181 return (error); 1182 } 1183 1184 static int 1185 acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg) 1186 { 1187 int val, step; 1188 UINT64 val_ec; 1189 ACPI_OBJECT Arg; 1190 ACPI_OBJECT_LIST Args; 1191 ACPI_STATUS status; 1192 1193 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1194 ACPI_SERIAL_ASSERT(ibm); 1195 1196 if (arg < 0 || arg > 7) 1197 return (EINVAL); 1198 1199 /* Read the current brightness */ 1200 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1); 1201 if (ACPI_FAILURE(status)) 1202 return (status); 1203 1204 if (sc->cmos_handle) { 1205 val = val_ec & IBM_EC_MASK_BRI; 1206 1207 Args.Count = 1; 1208 Args.Pointer = &Arg; 1209 Arg.Type = ACPI_TYPE_INTEGER; 1210 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : 1211 IBM_CMOS_BRIGHTNESS_DOWN; 1212 1213 step = (arg > val) ? 1 : -1; 1214 for (int i = val; i != arg; i += step) { 1215 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1216 &Args, NULL); 1217 if (ACPI_FAILURE(status)) { 1218 /* Record the last value */ 1219 if (i != val) { 1220 ACPI_EC_WRITE(sc->ec_dev, 1221 IBM_EC_BRIGHTNESS, i - step, 1); 1222 } 1223 return (status); 1224 } 1225 } 1226 } 1227 1228 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1); 1229 } 1230 1231 static int 1232 acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg) 1233 { 1234 int val; 1235 1236 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1237 ACPI_SERIAL_ASSERT(ibm); 1238 1239 if (arg < 0 || arg > 1) 1240 return (EINVAL); 1241 1242 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : 1243 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT); 1244 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val); 1245 } 1246 1247 static int 1248 acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg) 1249 { 1250 ACPI_OBJECT Arg; 1251 ACPI_OBJECT_LIST Args; 1252 ACPI_STATUS status; 1253 1254 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1255 ACPI_SERIAL_ASSERT(ibm); 1256 1257 if (arg < 0 || arg > 1) 1258 return (EINVAL); 1259 1260 if (sc->light_set_supported) { 1261 Args.Count = 1; 1262 Args.Pointer = &Arg; 1263 Arg.Type = ACPI_TYPE_INTEGER; 1264 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off; 1265 1266 status = AcpiEvaluateObject(sc->light_handle, NULL, 1267 &Args, NULL); 1268 if (ACPI_SUCCESS(status)) 1269 sc->light_val = arg; 1270 return (status); 1271 } 1272 1273 return (0); 1274 } 1275 1276 /* 1277 * Helper function to make a get or set ACPI call to the PrivacyGuard handle. 1278 * Only meant to be used internally by the get/set functions below. 1279 */ 1280 static ACPI_STATUS 1281 acpi_ibm_privacyguard_acpi_call(struct acpi_ibm_softc *sc, bool write, int *arg) 1282 { 1283 ACPI_OBJECT Arg; 1284 ACPI_OBJECT_LIST Args; 1285 ACPI_STATUS status; 1286 ACPI_OBJECT out_obj; 1287 ACPI_BUFFER result; 1288 1289 Arg.Type = ACPI_TYPE_INTEGER; 1290 Arg.Integer.Value = (write ? *arg : 0); 1291 Args.Count = 1; 1292 Args.Pointer = &Arg; 1293 result.Length = sizeof(out_obj); 1294 result.Pointer = &out_obj; 1295 1296 status = AcpiEvaluateObject(sc->handle, 1297 (write ? IBM_NAME_PRIVACYGUARD_SET : IBM_NAME_PRIVACYGUARD_GET), 1298 &Args, &result); 1299 if (ACPI_SUCCESS(status) && !write) 1300 *arg = out_obj.Integer.Value; 1301 1302 return (status); 1303 } 1304 1305 /* 1306 * Returns -1 if the device is not present. 1307 */ 1308 static int 1309 acpi_ibm_privacyguard_get(struct acpi_ibm_softc *sc) 1310 { 1311 ACPI_STATUS status; 1312 int val; 1313 1314 status = acpi_ibm_privacyguard_acpi_call(sc, false, &val); 1315 if (ACPI_SUCCESS(status) && 1316 (val & IBM_FLAG_PRIVACYGUARD_DEVICE_PRESENT)) 1317 return (val & IBM_FLAG_PRIVACYGUARD_ON); 1318 1319 return (-1); 1320 } 1321 1322 static ACPI_STATUS 1323 acpi_ibm_privacyguard_set(struct acpi_ibm_softc *sc, int arg) 1324 { 1325 if (arg < 0 || arg > 1) 1326 return (AE_BAD_PARAMETER); 1327 1328 return (acpi_ibm_privacyguard_acpi_call(sc, true, &arg)); 1329 } 1330 1331 static int 1332 acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg) 1333 { 1334 int val, step; 1335 UINT64 val_ec; 1336 ACPI_OBJECT Arg; 1337 ACPI_OBJECT_LIST Args; 1338 ACPI_STATUS status; 1339 1340 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1341 ACPI_SERIAL_ASSERT(ibm); 1342 1343 if (arg < 0 || arg > 14) 1344 return (EINVAL); 1345 1346 /* Read the current volume */ 1347 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1348 if (ACPI_FAILURE(status)) 1349 return (status); 1350 1351 if (sc->cmos_handle) { 1352 val = val_ec & IBM_EC_MASK_VOL; 1353 1354 Args.Count = 1; 1355 Args.Pointer = &Arg; 1356 Arg.Type = ACPI_TYPE_INTEGER; 1357 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : 1358 IBM_CMOS_VOLUME_DOWN; 1359 1360 step = (arg > val) ? 1 : -1; 1361 for (int i = val; i != arg; i += step) { 1362 status = AcpiEvaluateObject(sc->cmos_handle, NULL, 1363 &Args, NULL); 1364 if (ACPI_FAILURE(status)) { 1365 /* Record the last value */ 1366 if (i != val) { 1367 val_ec = i - step + 1368 (val_ec & (~IBM_EC_MASK_VOL)); 1369 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, 1370 val_ec, 1); 1371 } 1372 return (status); 1373 } 1374 } 1375 } 1376 1377 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL)); 1378 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1379 } 1380 1381 static int 1382 acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg) 1383 { 1384 UINT64 val_ec; 1385 ACPI_OBJECT Arg; 1386 ACPI_OBJECT_LIST Args; 1387 ACPI_STATUS status; 1388 1389 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); 1390 ACPI_SERIAL_ASSERT(ibm); 1391 1392 if (arg < 0 || arg > 1) 1393 return (EINVAL); 1394 1395 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1396 if (ACPI_FAILURE(status)) 1397 return (status); 1398 1399 if (sc->cmos_handle) { 1400 Args.Count = 1; 1401 Args.Pointer = &Arg; 1402 Arg.Type = ACPI_TYPE_INTEGER; 1403 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE; 1404 1405 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL); 1406 if (ACPI_FAILURE(status)) 1407 return (status); 1408 } 1409 1410 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE : 1411 val_ec & (~IBM_EC_MASK_MUTE); 1412 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1); 1413 } 1414 1415 static void 1416 acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg) 1417 { 1418 int val; 1419 UINT64 val_ec; 1420 ACPI_STATUS status; 1421 1422 ACPI_SERIAL_BEGIN(ibm); 1423 switch (arg) { 1424 case IBM_EVENT_SUSPEND_TO_RAM: 1425 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); 1426 break; 1427 1428 case IBM_EVENT_BLUETOOTH: 1429 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0)); 1430 break; 1431 1432 case IBM_EVENT_BRIGHTNESS_UP: 1433 case IBM_EVENT_BRIGHTNESS_DOWN: 1434 /* Read the current brightness */ 1435 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, 1436 &val_ec, 1); 1437 if (ACPI_FAILURE(status)) 1438 return; 1439 1440 val = val_ec & IBM_EC_MASK_BRI; 1441 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1; 1442 acpi_ibm_brightness_set(sc, val); 1443 break; 1444 1445 case IBM_EVENT_THINKLIGHT: 1446 acpi_ibm_thinklight_set(sc, (sc->light_val == 0)); 1447 break; 1448 1449 case IBM_EVENT_VOLUME_UP: 1450 case IBM_EVENT_VOLUME_DOWN: 1451 /* Read the current volume */ 1452 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1453 if (ACPI_FAILURE(status)) 1454 return; 1455 1456 val = val_ec & IBM_EC_MASK_VOL; 1457 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1; 1458 acpi_ibm_volume_set(sc, val); 1459 break; 1460 1461 case IBM_EVENT_MUTE: 1462 /* Read the current value */ 1463 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1); 1464 if (ACPI_FAILURE(status)) 1465 return; 1466 1467 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE); 1468 acpi_ibm_mute_set(sc, (val == 0)); 1469 break; 1470 1471 default: 1472 break; 1473 } 1474 ACPI_SERIAL_END(ibm); 1475 } 1476 1477 static void 1478 acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context) 1479 { 1480 int event, arg, type; 1481 device_t dev = context; 1482 struct acpi_ibm_softc *sc = device_get_softc(dev); 1483 1484 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify); 1485 1486 if (notify != 0x80) 1487 device_printf(dev, "Unknown notify\n"); 1488 1489 for (;;) { 1490 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event); 1491 if (event == 0) 1492 break; 1493 1494 type = (event >> 12) & 0xf; 1495 arg = event & 0xfff; 1496 switch (type) { 1497 case 1: 1498 if (!(sc->events_availmask & (1 << (arg - 1)))) { 1499 device_printf(dev, "Unknown key %d\n", arg); 1500 break; 1501 } 1502 1503 /* Execute event handler */ 1504 if (sc->handler_events & (1 << (arg - 1))) 1505 acpi_ibm_eventhandler(sc, (arg & 0xff)); 1506 1507 /* Notify devd(8) */ 1508 acpi_UserNotify("IBM", h, (arg & 0xff)); 1509 break; 1510 default: 1511 break; 1512 } 1513 } 1514 } 1515