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