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