sys/dev/acpica/acpi_thinkpad/acpi_thinkpad.c

   1 /*
   2  * Copyright (c) 2004 Takanori Watanabe
   3  * Copyright (c) 2005 Markus Brueffer <markus@FreeBSD.org>
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  25  * SUCH DAMAGE.
  26  *
  27  * $FreeBSD: head/sys/dev/acpi_support/acpi_ibm.c 246128 2013-01-30 18:01:20Z sbz $
  28  */
  29
  30 /*
  31  * Driver for extra ACPI-controlled gadgets found on IBM and Lenovo ThinkPad
  32  * laptops. Inspired by the ibm-acpi and tpb projects which implement these
  33  * features on Linux.
  34  *
  35  *   acpi-ibm: <http://ibm-acpi.sourceforge.net/>
  36  *        tpb: <http://www.nongnu.org/tpb/>
  37  */
  38
  39 #include "opt_acpi.h"
  40 #include <sys/param.h>
  41 #include <sys/kernel.h>
  42 #include <sys/bus.h>
  43 #include <machine/cpufunc.h>
  44 #include <sys/module.h>
  45 #include <sys/sensors.h>
  46 #include <sys/sbuf.h>
  47 #include <sys/sysctl.h>
  48 #include <sys/lock.h>
  49 #include <sys/thread2.h>
  50 #include <machine/clock.h>
  51 #include <dev/misc/led/led.h>
  52
  53 #include "acpi.h"
  54 #include "accommon.h"
  55 #include "acpivar.h"
  56
  57 #define _COMPONENT      ACPI_OEM
  58 ACPI_MODULE_NAME("THINKPAD")
  59
  60 /* Internal methods */
  61 #define ACPI_THINKPAD_METHOD_EVENTS             1
  62 #define ACPI_THINKPAD_METHOD_EVENTMASK          2
  63 #define ACPI_THINKPAD_METHOD_HOTKEY             3
  64 #define ACPI_THINKPAD_METHOD_BRIGHTNESS         4
  65 #define ACPI_THINKPAD_METHOD_VOLUME             5
  66 #define ACPI_THINKPAD_METHOD_MUTE               6
  67 #define ACPI_THINKPAD_METHOD_THINKLIGHT         7
  68 #define ACPI_THINKPAD_METHOD_BLUETOOTH          8
  69 #define ACPI_THINKPAD_METHOD_WLAN               9
  70 #define ACPI_THINKPAD_METHOD_FANSPEED           10
  71 #define ACPI_THINKPAD_METHOD_FANLEVEL           11
  72 #define ACPI_THINKPAD_METHOD_FANSTATUS          12
  73 #define ACPI_THINKPAD_METHOD_THERMAL            13
  74 #define ACPI_THINKPAD_METHOD_HANDLEREVENTS      14
  75
  76 /* Hotkeys/Buttons */
  77 #define THINKPAD_RTC_HOTKEY1                    0x64
  78 #define   THINKPAD_RTC_MASK_HOME                (1 << 0)
  79 #define   THINKPAD_RTC_MASK_SEARCH              (1 << 1)
  80 #define   THINKPAD_RTC_MASK_MAIL                (1 << 2)
  81 #define   THINKPAD_RTC_MASK_WLAN                (1 << 5)
  82 #define THINKPAD_RTC_HOTKEY2                    0x65
  83 #define   THINKPAD_RTC_MASK_THINKPAD            (1 << 3)
  84 #define   THINKPAD_RTC_MASK_ZOOM                (1 << 5)
  85 #define   THINKPAD_RTC_MASK_VIDEO               (1 << 6)
  86 #define   THINKPAD_RTC_MASK_HIBERNATE           (1 << 7)
  87 #define THINKPAD_RTC_THINKLIGHT                 0x66
  88 #define   THINKPAD_RTC_MASK_THINKLIGHT          (1 << 4)
  89 #define THINKPAD_RTC_SCREENEXPAND               0x67
  90 #define   THINKPAD_RTC_MASK_SCREENEXPAND        (1 << 5)
  91 #define THINKPAD_RTC_BRIGHTNESS                 0x6c
  92 #define   THINKPAD_RTC_MASK_BRIGHTNESS          (1 << 5)
  93 #define THINKPAD_RTC_VOLUME                     0x6e
  94 #define   THINKPAD_RTC_MASK_VOLUME              (1 << 7)
  95
  96 /* Embedded Controller registers */
  97 #define THINKPAD_EC_BRIGHTNESS                  0x31
  98 #define   THINKPAD_EC_MASK_BRI                  0x7
  99 #define THINKPAD_EC_VOLUME                      0x30
 100 #define   THINKPAD_EC_MASK_VOL                  0xf
 101 #define   THINKPAD_EC_MASK_MUTE                 (1 << 6)
 102 #define THINKPAD_EC_FANSTATUS                   0x2F
 103 #define   THINKPAD_EC_MASK_FANLEVEL             0x3f
 104 #define   THINKPAD_EC_MASK_FANDISENGAGED        (1 << 6)
 105 #define   THINKPAD_EC_MASK_FANSTATUS            (1 << 7)
 106 #define THINKPAD_EC_FANSPEED                    0x84
 107
 108 /* CMOS Commands */
 109 #define THINKPAD_CMOS_VOLUME_DOWN               0
 110 #define THINKPAD_CMOS_VOLUME_UP                 1
 111 #define THINKPAD_CMOS_VOLUME_MUTE               2
 112 #define THINKPAD_CMOS_BRIGHTNESS_UP             4
 113 #define THINKPAD_CMOS_BRIGHTNESS_DOWN           5
 114
 115 /* ACPI methods */
 116 #define THINKPAD_NAME_KEYLIGHT                  "KBLT"
 117 #define THINKPAD_NAME_WLAN_BT_GET               "GBDC"
 118 #define THINKPAD_NAME_WLAN_BT_SET               "SBDC"
 119 #define   THINKPAD_NAME_MASK_BT                 (1 << 1)
 120 #define   THINKPAD_NAME_MASK_WLAN               (1 << 2)
 121 #define THINKPAD_NAME_THERMAL_GET               "TMP7"
 122 #define THINKPAD_NAME_THERMAL_UPDT              "UPDT"
 123
 124 #define THINKPAD_NAME_EVENTS_STATUS_GET         "DHKC"
 125 #define THINKPAD_NAME_EVENTS_MASK_GET           "DHKN"
 126 #define THINKPAD_NAME_EVENTS_STATUS_SET         "MHKC"
 127 #define THINKPAD_NAME_EVENTS_MASK_SET           "MHKM"
 128 #define THINKPAD_NAME_EVENTS_GET                "MHKP"
 129 #define THINKPAD_NAME_EVENTS_AVAILMASK          "MHKA"
 130
 131 #define THINKPAD_NUM_SENSORS                    9
 132 #define THINKPAD_TEMP_SENSORS                   8
 133
 134 /* Event Code */
 135 #define THINKPAD_EVENT_LCD_BACKLIGHT            0x03
 136 #define THINKPAD_EVENT_SUSPEND_TO_RAM           0x04
 137 #define THINKPAD_EVENT_BLUETOOTH                0x05
 138 #define THINKPAD_EVENT_SCREEN_EXPAND            0x07
 139 #define THINKPAD_EVENT_SUSPEND_TO_DISK          0x0c
 140 #define THINKPAD_EVENT_BRIGHTNESS_UP            0x10
 141 #define THINKPAD_EVENT_BRIGHTNESS_DOWN          0x11
 142 #define THINKPAD_EVENT_THINKLIGHT               0x12
 143 #define THINKPAD_EVENT_ZOOM                     0x14
 144 #define THINKPAD_EVENT_VOLUME_UP                0x15
 145 #define THINKPAD_EVENT_VOLUME_DOWN              0x16
 146 #define THINKPAD_EVENT_MUTE                     0x17
 147 #define THINKPAD_EVENT_ACCESS_THINKPAD_BUTTON   0x18
 148
 149 #define ABS(x) (((x) < 0)? -(x) : (x))
 150
 151 struct acpi_thinkpad_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         int             wlan_bt_flags;
 180         int             thermal_updt_supported;
 181
 182         unsigned int    events_availmask;
 183         unsigned int    events_initialmask;
 184         int             events_mask_supported;
 185         int             events_enable;
 186
 187         /* sensors(9) related */
 188         struct ksensordev sensordev;
 189         struct ksensor sensors[THINKPAD_NUM_SENSORS];
 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     access;
 202 } acpi_thinkpad_sysctls[] = {
 203         {
 204                 .name           = "events",
 205                 .method         = ACPI_THINKPAD_METHOD_EVENTS,
 206                 .description    = "ACPI events enable",
 207                 .access         = CTLTYPE_INT | CTLFLAG_RW
 208         },
 209         {
 210                 .name           = "eventmask",
 211                 .method         = ACPI_THINKPAD_METHOD_EVENTMASK,
 212                 .description    = "ACPI eventmask",
 213                 .access         = CTLTYPE_INT | CTLFLAG_RW
 214         },
 215         {
 216                 .name           = "hotkey",
 217                 .method         = ACPI_THINKPAD_METHOD_HOTKEY,
 218                 .description    = "Key Status",
 219                 .access         = CTLTYPE_INT | CTLFLAG_RD
 220         },
 221         {
 222                 .name           = "lcd_brightness",
 223                 .method         = ACPI_THINKPAD_METHOD_BRIGHTNESS,
 224                 .description    = "LCD Brightness",
 225                 .access         = CTLTYPE_INT | CTLFLAG_RW
 226         },
 227         {
 228                 .name           = "volume",
 229                 .method         = ACPI_THINKPAD_METHOD_VOLUME,
 230                 .description    = "Volume",
 231                 .access         = CTLTYPE_INT | CTLFLAG_RW
 232         },
 233         {
 234                 .name           = "mute",
 235                 .method         = ACPI_THINKPAD_METHOD_MUTE,
 236                 .description    = "Mute",
 237                 .access         = CTLTYPE_INT | CTLFLAG_RW
 238         },
 239         {
 240                 .name           = "thinklight",
 241                 .method         = ACPI_THINKPAD_METHOD_THINKLIGHT,
 242                 .description    = "Thinklight enable",
 243                 .access         = CTLTYPE_INT | CTLFLAG_RW
 244         },
 245         {
 246                 .name           = "bluetooth",
 247                 .method         = ACPI_THINKPAD_METHOD_BLUETOOTH,
 248                 .description    = "Bluetooth enable",
 249                 .access         = CTLTYPE_INT | CTLFLAG_RW
 250         },
 251         {
 252                 .name           = "wlan",
 253                 .method         = ACPI_THINKPAD_METHOD_WLAN,
 254                 .description    = "WLAN enable",
 255                 .access         = CTLTYPE_INT | CTLFLAG_RD
 256         },
 257         {
 258                 .name           = "fan_speed",
 259                 .method         = ACPI_THINKPAD_METHOD_FANSPEED,
 260                 .description    = "Fan speed",
 261                 .access         = CTLTYPE_INT | CTLFLAG_RD
 262         },
 263         {
 264                 .name           = "fan_level",
 265                 .method         = ACPI_THINKPAD_METHOD_FANLEVEL,
 266                 .description    = "Fan level",
 267                 .access         = CTLTYPE_INT | CTLFLAG_RW
 268         },
 269         {
 270                 .name           = "fan",
 271                 .method         = ACPI_THINKPAD_METHOD_FANSTATUS,
 272                 .description    = "Fan enable",
 273                 .access         = CTLTYPE_INT | CTLFLAG_RW
 274         },
 275
 276         { NULL, 0, NULL, 0 }
 277 };
 278
 279 ACPI_SERIAL_DECL(thinkpad, "ACPI Thinkpad extras");
 280
 281 static int      acpi_thinkpad_probe(device_t dev);
 282 static int      acpi_thinkpad_attach(device_t dev);
 283 static int      acpi_thinkpad_detach(device_t dev);
 284 static int      acpi_thinkpad_resume(device_t dev);
 285
 286 static void     thinkpad_led(void *softc, int onoff);
 287 static void     thinkpad_led_task(struct acpi_thinkpad_softc *sc, int pending __unused);
 288
 289 static int      acpi_thinkpad_sysctl(SYSCTL_HANDLER_ARGS);
 290 static int      acpi_thinkpad_sysctl_init(struct acpi_thinkpad_softc *sc,
 291                 int method);
 292 static int      acpi_thinkpad_sysctl_get(struct acpi_thinkpad_softc *sc,
 293                 int method);
 294 static int      acpi_thinkpad_sysctl_set(struct acpi_thinkpad_softc *sc,
 295                 int method, int val);
 296
 297 static int      acpi_thinkpad_eventmask_set(struct acpi_thinkpad_softc *sc,
 298                 int val);
 299 static int      acpi_thinkpad_handlerevents_sysctl(SYSCTL_HANDLER_ARGS);
 300 static void     acpi_thinkpad_notify(ACPI_HANDLE h, UINT32 notify,
 301                 void *context);
 302 static void     acpi_thinkpad_refresh(void *);
 303
 304 static int      acpi_thinkpad_brightness_set(struct acpi_thinkpad_softc *sc, int arg);
 305 static int      acpi_thinkpad_bluetooth_set(struct acpi_thinkpad_softc *sc, int arg);
 306 static int      acpi_thinkpad_thinklight_set(struct acpi_thinkpad_softc *sc, int arg);
 307 static int      acpi_thinkpad_volume_set(struct acpi_thinkpad_softc *sc, int arg);
 308 static int      acpi_thinkpad_mute_set(struct acpi_thinkpad_softc *sc, int arg);
 309
 310 static device_method_t acpi_thinkpad_methods[] = {
 311         /* Device interface */
 312         DEVMETHOD(device_probe, acpi_thinkpad_probe),
 313         DEVMETHOD(device_attach, acpi_thinkpad_attach),
 314         DEVMETHOD(device_detach, acpi_thinkpad_detach),
 315         DEVMETHOD(device_resume, acpi_thinkpad_resume),
 316
 317         DEVMETHOD_END
 318 };
 319
 320 static driver_t acpi_thinkpad_driver = {
 321         "acpi_thinkpad",
 322         acpi_thinkpad_methods,
 323         sizeof(struct acpi_thinkpad_softc),
 324 };
 325
 326 static devclass_t acpi_thinkpad_devclass;
 327
 328 DRIVER_MODULE(acpi_thinkpad, acpi, acpi_thinkpad_driver,
 329     acpi_thinkpad_devclass, NULL, NULL);
 330 MODULE_DEPEND(acpi_thinkpad, acpi, 1, 1, 1);
 331 static char    *thinkpad_ids[] = {"IBM0068", "LEN0068", NULL};
 332
 333 static void
 334 thinkpad_led(void *softc, int onoff)
 335 {
 336         struct acpi_thinkpad_softc* sc = (struct acpi_thinkpad_softc*) softc;
 337
 338         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 339
 340         if (sc->led_busy)
 341                 return;
 342
 343         sc->led_busy = 1;
 344         sc->led_state = onoff;
 345
 346         AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)thinkpad_led_task, sc);
 347 }
 348
 349 static void
 350 thinkpad_led_task(struct acpi_thinkpad_softc *sc, int pending __unused)
 351 {
 352         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 353
 354         ACPI_SERIAL_BEGIN(thinkpad);
 355         acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_THINKLIGHT, sc->led_state);
 356         ACPI_SERIAL_END(thinkpad);
 357
 358         sc->led_busy = 0;
 359 }
 360
 361 static int
 362 acpi_thinkpad_probe(device_t dev)
 363 {
 364         if (acpi_disabled("thinkpad") ||
 365             ACPI_ID_PROBE(device_get_parent(dev), dev, thinkpad_ids) == NULL ||
 366             device_get_unit(dev) != 0)
 367                 return (ENXIO);
 368
 369         device_set_desc(dev, "IBM/Lenovo ThinkPad ACPI Extras");
 370         return (0);
 371 }
 372
 373 static int
 374 acpi_thinkpad_attach(device_t dev)
 375 {
 376         struct acpi_thinkpad_softc      *sc;
 377         struct acpi_softc       *acpi_sc;
 378         devclass_t              ec_devclass;
 379         int                     i;
 380
 381         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 382
 383         sc = device_get_softc(dev);
 384         sc->dev = dev;
 385         sc->handle = acpi_get_handle(dev);
 386
 387         acpi_sc = acpi_device_get_parent_softc(dev);
 388
 389         /* Look for the first embedded controller */
 390         if (!(ec_devclass = devclass_find ("acpi_ec"))) {
 391                 if (bootverbose)
 392                         device_printf(dev, "Couldn't find acpi_ec devclass\n");
 393                 return (EINVAL);
 394         }
 395         if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
 396                 if (bootverbose)
 397                         device_printf(dev, "Couldn't find acpi_ec device\n");
 398                 return (EINVAL);
 399         }
 400         sc->ec_handle = acpi_get_handle(sc->ec_dev);
 401
 402         sysctl_ctx_init(&sc->sysctl_ctx);
 403         sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
 404             SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
 405             "thinkpad", CTLFLAG_RD, 0, "");
 406
 407         /* Look for event mask and hook up the nodes */
 408         sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
 409             THINKPAD_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
 410
 411         if (sc->events_mask_supported) {
 412                 SYSCTL_ADD_UINT(&sc->sysctl_ctx,
 413                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 414                     "initialmask", CTLFLAG_RD,
 415                     &sc->events_initialmask, 0, "Initial eventmask");
 416
 417                 /* The availmask is the bitmask of supported events */
 418                 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
 419                     THINKPAD_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
 420                         sc->events_availmask = 0xffffffff;
 421
 422                 SYSCTL_ADD_UINT(&sc->sysctl_ctx,
 423                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 424                     "availmask", CTLFLAG_RD,
 425                     &sc->events_availmask, 0, "Mask of supported events");
 426         }
 427
 428         /* Hook up proc nodes */
 429         for (i = 0; acpi_thinkpad_sysctls[i].name != NULL; i++) {
 430                 if (!acpi_thinkpad_sysctl_init(sc,
 431                     acpi_thinkpad_sysctls[i].method))
 432                         continue;
 433
 434                 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
 435                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 436                     acpi_thinkpad_sysctls[i].name,
 437                     acpi_thinkpad_sysctls[i].access,
 438                     sc, i, acpi_thinkpad_sysctl, "I",
 439                     acpi_thinkpad_sysctls[i].description);
 440         }
 441
 442         /* Hook up handlerevents node */
 443         if (acpi_thinkpad_sysctl_init(sc, ACPI_THINKPAD_METHOD_HANDLEREVENTS)) {
 444                 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
 445                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 446                     "handlerevents", CTLTYPE_STRING | CTLFLAG_RW,
 447                     sc, 0, acpi_thinkpad_handlerevents_sysctl, "I",
 448                     "devd(8) events handled by acpi_thinkpad");
 449         }
 450
 451         /* Handle notifies */
 452         AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
 453             acpi_thinkpad_notify, dev);
 454
 455         /* Attach sensors(9). */
 456         if (sensor_task_register(sc, acpi_thinkpad_refresh, 5)) {
 457                 device_printf(sc->dev, "unable to register update task\n");
 458                 return 1;
 459         }
 460
 461         strlcpy(sc->sensordev.xname, device_get_nameunit(sc->dev),
 462             sizeof(sc->sensordev.xname));
 463
 464         for (i = 0; i < THINKPAD_TEMP_SENSORS; i++) {
 465                 sc->sensors[i].type = SENSOR_TEMP;
 466                 sensor_attach(&sc->sensordev, &sc->sensors[i]);
 467         }
 468
 469         sc->sensors[i].type = SENSOR_FANRPM;
 470         sensor_attach(&sc->sensordev, &sc->sensors[i]);
 471
 472         sensordev_install(&sc->sensordev);
 473
 474         /* Hook up light to led(4) */
 475         if (sc->light_set_supported)
 476                 sc->led_dev = led_create_state(thinkpad_led, sc, "thinklight", sc->light_val);
 477
 478         return (0);
 479 }
 480
 481 static int
 482 acpi_thinkpad_detach(device_t dev)
 483 {
 484         int i;
 485
 486         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 487
 488         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
 489
 490         /* Disable events and restore eventmask */
 491         ACPI_SERIAL_BEGIN(thinkpad);
 492         acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTS, 0);
 493         acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTMASK,
 494             sc->events_initialmask);
 495         ACPI_SERIAL_END(thinkpad);
 496
 497         AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
 498             acpi_thinkpad_notify);
 499
 500         if (sc->sysctl_tree != NULL)
 501                 sysctl_ctx_free(&sc->sysctl_ctx);
 502
 503         sensordev_deinstall(&sc->sensordev);
 504         for (i = 0; i < THINKPAD_NUM_SENSORS; i++)
 505                 sensor_detach(&sc->sensordev, &sc->sensors[i]);
 506         sensor_task_unregister(sc);
 507
 508         if (sc->led_dev != NULL)
 509                 led_destroy(sc->led_dev);
 510
 511         return (0);
 512 }
 513
 514 static int
 515 acpi_thinkpad_resume(device_t dev)
 516 {
 517         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
 518
 519         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 520
 521         ACPI_SERIAL_BEGIN(thinkpad);
 522         for (int i = 0; acpi_thinkpad_sysctls[i].name != NULL; i++) {
 523                 int val;
 524
 525                 if ((acpi_thinkpad_sysctls[i].access & CTLFLAG_RD) == 0) {
 526                         continue;
 527                 }
 528
 529                 val = acpi_thinkpad_sysctl_get(sc, i);
 530
 531                 if ((acpi_thinkpad_sysctls[i].access & CTLFLAG_WR) == 0) {
 532                         continue;
 533                 }
 534
 535                 acpi_thinkpad_sysctl_set(sc, i, val);
 536         }
 537         ACPI_SERIAL_END(thinkpad);
 538
 539         return (0);
 540 }
 541
 542 static int
 543 acpi_thinkpad_eventmask_set(struct acpi_thinkpad_softc *sc, int val)
 544 {
 545         int i;
 546         ACPI_OBJECT             arg[2];
 547         ACPI_OBJECT_LIST        args;
 548         ACPI_STATUS             status;
 549
 550         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 551         ACPI_SERIAL_ASSERT(thinkpad);
 552
 553         args.Count = 2;
 554         args.Pointer = arg;
 555         arg[0].Type = ACPI_TYPE_INTEGER;
 556         arg[1].Type = ACPI_TYPE_INTEGER;
 557
 558         for (i = 0; i < 32; ++i) {
 559                 arg[0].Integer.Value = i+1;
 560                 arg[1].Integer.Value = (((1 << i) & val) != 0);
 561                 status = AcpiEvaluateObject(sc->handle,
 562                     THINKPAD_NAME_EVENTS_MASK_SET, &args, NULL);
 563
 564                 if (ACPI_FAILURE(status))
 565                         return (status);
 566         }
 567
 568         return (0);
 569 }
 570
 571 static int
 572 acpi_thinkpad_sysctl(SYSCTL_HANDLER_ARGS)
 573 {
 574         struct acpi_thinkpad_softc      *sc;
 575         int                     arg;
 576         int                     error = 0;
 577         int                     function;
 578         int                     method;
 579
 580         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 581
 582         sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1;
 583         function = oidp->oid_arg2;
 584         method = acpi_thinkpad_sysctls[function].method;
 585
 586         ACPI_SERIAL_BEGIN(thinkpad);
 587         arg = acpi_thinkpad_sysctl_get(sc, method);
 588         error = sysctl_handle_int(oidp, &arg, 0, req);
 589
 590         /* Sanity check */
 591         if (error != 0 || req->newptr == NULL)
 592                 goto out;
 593
 594         /* Update */
 595         error = acpi_thinkpad_sysctl_set(sc, method, arg);
 596
 597 out:
 598         ACPI_SERIAL_END(thinkpad);
 599         return (error);
 600 }
 601
 602 static int
 603 acpi_thinkpad_sysctl_get(struct acpi_thinkpad_softc *sc, int method)
 604 {
 605         UINT64          val_ec;
 606         int             val = 0, key;
 607
 608         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 609         ACPI_SERIAL_ASSERT(thinkpad);
 610
 611         switch (method) {
 612         case ACPI_THINKPAD_METHOD_EVENTS:
 613                 acpi_GetInteger(sc->handle, THINKPAD_NAME_EVENTS_STATUS_GET,
 614                     &val);
 615                 break;
 616
 617         case ACPI_THINKPAD_METHOD_EVENTMASK:
 618                 if (sc->events_mask_supported)
 619                         acpi_GetInteger(sc->handle,
 620                             THINKPAD_NAME_EVENTS_MASK_GET, &val);
 621                 break;
 622
 623         case ACPI_THINKPAD_METHOD_HOTKEY:
 624                 /*
 625                  * Construct the hotkey as a bitmask as illustrated below.
 626                  * Note that whenever a key was pressed, the respecting bit
 627                  * toggles and nothing else changes.
 628                  * +--+--+-+-+-+-+-+-+-+-+-+-+
 629                  * |11|10|9|8|7|6|5|4|3|2|1|0|
 630                  * +--+--+-+-+-+-+-+-+-+-+-+-+
 631                  *   |  | | | | | | | | | | |
 632                  *   |  | | | | | | | | | | +- Home Button
 633                  *   |  | | | | | | | | | +--- Search Button
 634                  *   |  | | | | | | | | +----- Mail Button
 635                  *   |  | | | | | | | +------- Thinkpad Button
 636                  *   |  | | | | | | +--------- Zoom (Fn + Space)
 637                  *   |  | | | | | +----------- WLAN Button
 638                  *   |  | | | | +------------- Video Button
 639                  *   |  | | | +--------------- Hibernate Button
 640                  *   |  | | +----------------- Thinklight Button
 641                  *   |  | +------------------- Screen expand (Fn + F8)
 642                  *   |  +--------------------- Brightness
 643                  *   +------------------------ Volume/Mute
 644                  */
 645                 key = rtcin(THINKPAD_RTC_HOTKEY1);
 646                 val = (THINKPAD_RTC_MASK_HOME | THINKPAD_RTC_MASK_SEARCH |
 647                     THINKPAD_RTC_MASK_MAIL | THINKPAD_RTC_MASK_WLAN) & key;
 648                 key = rtcin(THINKPAD_RTC_HOTKEY2);
 649                 val |= (THINKPAD_RTC_MASK_THINKPAD | THINKPAD_RTC_MASK_VIDEO |
 650                     THINKPAD_RTC_MASK_HIBERNATE) & key;
 651                 val |= (THINKPAD_RTC_MASK_ZOOM & key) >> 1;
 652                 key = rtcin(THINKPAD_RTC_THINKLIGHT);
 653                 val |= (THINKPAD_RTC_MASK_THINKLIGHT & key) << 4;
 654                 key = rtcin(THINKPAD_RTC_SCREENEXPAND);
 655                 val |= (THINKPAD_RTC_MASK_THINKLIGHT & key) << 4;
 656                 key = rtcin(THINKPAD_RTC_BRIGHTNESS);
 657                 val |= (THINKPAD_RTC_MASK_BRIGHTNESS & key) << 5;
 658                 key = rtcin(THINKPAD_RTC_VOLUME);
 659                 val |= (THINKPAD_RTC_MASK_VOLUME & key) << 4;
 660                 break;
 661
 662         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 663                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, &val_ec, 1);
 664                 val = val_ec & THINKPAD_EC_MASK_BRI;
 665                 break;
 666
 667         case ACPI_THINKPAD_METHOD_VOLUME:
 668                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
 669                 val = val_ec & THINKPAD_EC_MASK_VOL;
 670                 break;
 671
 672         case ACPI_THINKPAD_METHOD_MUTE:
 673                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
 674                 val = ((val_ec & THINKPAD_EC_MASK_MUTE) ==
 675                     THINKPAD_EC_MASK_MUTE);
 676                 break;
 677
 678         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 679                 if (sc->light_get_supported)
 680                         acpi_GetInteger(sc->ec_handle, THINKPAD_NAME_KEYLIGHT,
 681                             &val);
 682                 else
 683                         val = sc->light_val;
 684                 break;
 685
 686         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 687                 acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &val);
 688                 sc->wlan_bt_flags = val;
 689                 val = ((val & THINKPAD_NAME_MASK_BT) != 0);
 690                 break;
 691
 692         case ACPI_THINKPAD_METHOD_WLAN:
 693                 acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &val);
 694                 sc->wlan_bt_flags = val;
 695                 val = ((val & THINKPAD_NAME_MASK_WLAN) != 0);
 696                 break;
 697
 698         case ACPI_THINKPAD_METHOD_FANSPEED:
 699                 if (sc->fan_handle) {
 700                         if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle,
 701                             NULL, &val)))
 702                                 val = -1;
 703                 }
 704                 else {
 705                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSPEED,
 706                             &val_ec, 2);
 707                         val = val_ec;
 708                 }
 709                 break;
 710
 711         case ACPI_THINKPAD_METHOD_FANLEVEL:
 712                 /*
 713                  * The THINKPAD_EC_FANSTATUS register works as follows:
 714                  * Bit 0-5 indicate the level at which the fan operates. Only
 715                  *       values between 0 and 7 have an effect. Everything
 716                  *       above 7 is treated the same as level 7
 717                  * Bit 6 overrides the fan speed limit if set to 1
 718                  * Bit 7 indicates at which mode the fan operates:
 719                  *       manual (0) or automatic (1)
 720                  */
 721                 if (!sc->fan_handle) {
 722                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 723                             &val_ec, 1);
 724                         val = val_ec & THINKPAD_EC_MASK_FANLEVEL;
 725                 }
 726                 break;
 727
 728         case ACPI_THINKPAD_METHOD_FANSTATUS:
 729                 if (!sc->fan_handle) {
 730                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 731                             &val_ec, 1);
 732                         val = (val_ec & THINKPAD_EC_MASK_FANSTATUS) ==
 733                             THINKPAD_EC_MASK_FANSTATUS;
 734                 }
 735                 else
 736                         val = -1;
 737                 break;
 738         }
 739
 740         return (val);
 741 }
 742
 743 static int
 744 acpi_thinkpad_sysctl_set(struct acpi_thinkpad_softc *sc, int method, int arg)
 745 {
 746         int                     val;
 747         UINT64                  val_ec;
 748         ACPI_STATUS             status;
 749
 750         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 751         ACPI_SERIAL_ASSERT(thinkpad);
 752
 753         switch (method) {
 754         case ACPI_THINKPAD_METHOD_EVENTS:
 755                 if (arg < 0 || arg > 1)
 756                         return (EINVAL);
 757
 758                 status = acpi_SetInteger(sc->handle,
 759                     THINKPAD_NAME_EVENTS_STATUS_SET, arg);
 760                 if (ACPI_FAILURE(status))
 761                         return (status);
 762                 if (sc->events_mask_supported)
 763                         return acpi_thinkpad_eventmask_set(sc,
 764                             sc->events_availmask);
 765                 break;
 766
 767         case ACPI_THINKPAD_METHOD_EVENTMASK:
 768                 if (sc->events_mask_supported)
 769                         return acpi_thinkpad_eventmask_set(sc, arg);
 770                 break;
 771
 772         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 773                 return acpi_thinkpad_brightness_set(sc, arg);
 774                 break;
 775
 776         case ACPI_THINKPAD_METHOD_VOLUME:
 777                 return acpi_thinkpad_volume_set(sc, arg);
 778                 break;
 779
 780         case ACPI_THINKPAD_METHOD_MUTE:
 781                 return acpi_thinkpad_mute_set(sc, arg);
 782                 break;
 783
 784         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 785                 return acpi_thinkpad_thinklight_set(sc, arg);
 786                 break;
 787
 788         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 789                 return acpi_thinkpad_bluetooth_set(sc, arg);
 790                 break;
 791
 792         case ACPI_THINKPAD_METHOD_FANLEVEL:
 793                 if (arg < 0 || arg > 7)
 794                         return (EINVAL);
 795
 796                 if (!sc->fan_handle) {
 797                         /* Read the current fanstatus */
 798                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 799                             &val_ec, 1);
 800                         val = val_ec & (~THINKPAD_EC_MASK_FANLEVEL);
 801
 802                         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 803                             val | arg, 1);
 804                 }
 805                 break;
 806
 807         case ACPI_THINKPAD_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, THINKPAD_EC_FANSTATUS,
 814                             &val_ec, 1);
 815
 816                         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 817                             (arg == 1) ? (val_ec | THINKPAD_EC_MASK_FANSTATUS) :
 818                             (val_ec & (~THINKPAD_EC_MASK_FANSTATUS)), 1);
 819                 }
 820                 break;
 821         }
 822
 823         return (0);
 824 }
 825
 826 static int
 827 acpi_thinkpad_sysctl_init(struct acpi_thinkpad_softc *sc, int method)
 828 {
 829         int                     dummy;
 830         ACPI_OBJECT_TYPE        cmos_t;
 831         ACPI_HANDLE             ledb_handle;
 832
 833         switch (method) {
 834         case ACPI_THINKPAD_METHOD_EVENTS:
 835                 /* Events are disabled by default */
 836                 return (TRUE);
 837
 838         case ACPI_THINKPAD_METHOD_EVENTMASK:
 839                 return (sc->events_mask_supported);
 840
 841         case ACPI_THINKPAD_METHOD_HOTKEY:
 842         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 843         case ACPI_THINKPAD_METHOD_VOLUME:
 844         case ACPI_THINKPAD_METHOD_MUTE:
 845                 /* EC is required here, which was already checked before */
 846                 return (TRUE);
 847
 848         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 849                 sc->cmos_handle = NULL;
 850                 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(
 851                     sc->ec_handle, THINKPAD_NAME_KEYLIGHT, &sc->light_val));
 852
 853                 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS",
 854                     &sc->light_handle)) ||
 855                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS",
 856                     &sc->light_handle)) ||
 857                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS",
 858                     &sc->light_handle))) &&
 859                     ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
 860                     cmos_t == ACPI_TYPE_METHOD) {
 861                         sc->light_cmd_on = 0x0c;
 862                         sc->light_cmd_off = 0x0d;
 863                         sc->cmos_handle = sc->light_handle;
 864                 }
 865                 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT",
 866                     &sc->light_handle))) {
 867                         sc->light_cmd_on = 1;
 868                         sc->light_cmd_off = 0;
 869                 }
 870                 else
 871                         sc->light_handle = NULL;
 872
 873                 sc->light_set_supported = (sc->light_handle &&
 874                     ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB",
 875                     &ledb_handle)));
 876
 877                 if (sc->light_get_supported)
 878                         return (TRUE);
 879
 880                 if (sc->light_set_supported) {
 881                         sc->light_val = 0;
 882                         return (TRUE);
 883                 }
 884
 885                 return (FALSE);
 886
 887         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 888         case ACPI_THINKPAD_METHOD_WLAN:
 889                 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle,
 890                     THINKPAD_NAME_WLAN_BT_GET, &dummy)))
 891                         return (TRUE);
 892                 return (FALSE);
 893
 894         case ACPI_THINKPAD_METHOD_FANSPEED:
 895                 /*
 896                  * Some models report the fan speed in levels from 0-7
 897                  * Newer models report it contiguously
 898                  */
 899                 sc->fan_levels = (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN",
 900                     &sc->fan_handle)) ||
 901                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD",
 902                     &sc->fan_handle)));
 903                 return (TRUE);
 904
 905         case ACPI_THINKPAD_METHOD_FANLEVEL:
 906         case ACPI_THINKPAD_METHOD_FANSTATUS:
 907                 /*
 908                  * Fan status is only supported on those models,
 909                  * which report fan RPM contiguously, not in levels
 910                  */
 911                 if (sc->fan_levels)
 912                         return (FALSE);
 913                 return (TRUE);
 914
 915         case ACPI_THINKPAD_METHOD_THERMAL:
 916                 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle,
 917                     THINKPAD_NAME_THERMAL_GET, &dummy))) {
 918                         sc->thermal_updt_supported =
 919                             ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle,
 920                             THINKPAD_NAME_THERMAL_UPDT, &dummy));
 921                         return (TRUE);
 922                 }
 923                 return (FALSE);
 924
 925         case ACPI_THINKPAD_METHOD_HANDLEREVENTS:
 926                 return (TRUE);
 927         }
 928         return (FALSE);
 929 }
 930
 931 static int
 932 acpi_thinkpad_handlerevents_sysctl(SYSCTL_HANDLER_ARGS)
 933 {
 934         struct acpi_thinkpad_softc      *sc;
 935         int                     error = 0;
 936         struct sbuf             sb;
 937         char                    *cp, *ep;
 938         int                     l, val;
 939         unsigned int            handler_events;
 940
 941         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 942
 943         sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1;
 944
 945         if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL)
 946                 return (ENOMEM);
 947
 948         ACPI_SERIAL_BEGIN(thinkpad);
 949
 950         /* Get old values if this is a get request. */
 951         if (req->newptr == NULL) {
 952                 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++)
 953                         if (sc->handler_events & (1 << i))
 954                                 sbuf_printf(&sb, "0x%02x ", i + 1);
 955                 if (sbuf_len(&sb) == 0)
 956                         sbuf_printf(&sb, "NONE");
 957         }
 958
 959         sbuf_trim(&sb);
 960         sbuf_finish(&sb);
 961
 962         /* Copy out the old values to the user. */
 963         error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb));
 964         sbuf_delete(&sb);
 965
 966         if (error != 0 || req->newptr == NULL)
 967                 goto out;
 968
 969         /* If the user is setting a string, parse it. */
 970         handler_events = 0;
 971         cp = (char *)req->newptr;
 972         while (*cp) {
 973                 if (isspace(*cp)) {
 974                         cp++;
 975                         continue;
 976                 }
 977
 978                 ep = cp;
 979
 980                 while (*ep && !isspace(*ep))
 981                         ep++;
 982
 983                 l = ep - cp;
 984                 if (l == 0)
 985                         break;
 986
 987                 if (strncmp(cp, "NONE", 4) == 0) {
 988                         cp = ep;
 989                         continue;
 990                 }
 991
 992                 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x'))
 993                         val = strtoul(cp, &ep, 16);
 994                 else
 995                         val = strtoul(cp, &ep, 10);
 996
 997                 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) {
 998                         cp[l] = '\0';
 999                         device_printf(sc->dev, "invalid event code: %s\n", cp);
1000                         error = EINVAL;
1001                         goto out;
1002                 }
1003
1004                 handler_events |= 1 << (val - 1);
1005
1006                 cp = ep;
1007         }
1008
1009         sc->handler_events = handler_events;
1010 out:
1011         ACPI_SERIAL_END(thinkpad);
1012         return (error);
1013 }
1014
1015 static int
1016 acpi_thinkpad_brightness_set(struct acpi_thinkpad_softc *sc, int arg)
1017 {
1018         int                     val, step;
1019         UINT64                  val_ec;
1020         ACPI_OBJECT             Arg;
1021         ACPI_OBJECT_LIST        Args;
1022         ACPI_STATUS             status;
1023
1024         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1025         ACPI_SERIAL_ASSERT(thinkpad);
1026
1027         if (arg < 0 || arg > 7)
1028                 return (EINVAL);
1029
1030         /* Read the current brightness */
1031         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, &val_ec, 1);
1032         if (ACPI_FAILURE(status))
1033                 return (status);
1034
1035         if (sc->cmos_handle) {
1036                 val = val_ec & THINKPAD_EC_MASK_BRI;
1037
1038                 Args.Count = 1;
1039                 Args.Pointer = &Arg;
1040                 Arg.Type = ACPI_TYPE_INTEGER;
1041                 Arg.Integer.Value = (arg > val) ? THINKPAD_CMOS_BRIGHTNESS_UP :
1042                                                   THINKPAD_CMOS_BRIGHTNESS_DOWN;
1043
1044                 step = (arg > val) ? 1 : -1;
1045                 for (int i = val; i != arg; i += step) {
1046                         status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1047                                                     &Args, NULL);
1048                         if (ACPI_FAILURE(status)) {
1049                                 /* Record the last value */
1050                                 if (i != val) {
1051                                         ACPI_EC_WRITE(sc->ec_dev,
1052                                             THINKPAD_EC_BRIGHTNESS, i - step, 1);
1053                                 }
1054                                 return (status);
1055                         }
1056                 }
1057         }
1058
1059         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, arg, 1);
1060 }
1061
1062 static int
1063 acpi_thinkpad_bluetooth_set(struct acpi_thinkpad_softc *sc, int arg)
1064 {
1065         int                     val;
1066
1067         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1068         ACPI_SERIAL_ASSERT(thinkpad);
1069
1070         if (arg < 0 || arg > 1)
1071                 return (EINVAL);
1072
1073         val = (arg == 1) ? sc->wlan_bt_flags | THINKPAD_NAME_MASK_BT :
1074                            sc->wlan_bt_flags & (~THINKPAD_NAME_MASK_BT);
1075         return acpi_SetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_SET, val);
1076 }
1077
1078 static int
1079 acpi_thinkpad_thinklight_set(struct acpi_thinkpad_softc *sc, int arg)
1080 {
1081         ACPI_OBJECT             Arg;
1082         ACPI_OBJECT_LIST        Args;
1083         ACPI_STATUS             status;
1084
1085         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1086         ACPI_SERIAL_ASSERT(thinkpad);
1087
1088         if (arg < 0 || arg > 1)
1089                 return (EINVAL);
1090
1091         if (sc->light_set_supported) {
1092                 Args.Count = 1;
1093                 Args.Pointer = &Arg;
1094                 Arg.Type = ACPI_TYPE_INTEGER;
1095                 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
1096
1097                 status = AcpiEvaluateObject(sc->light_handle, NULL,
1098                                             &Args, NULL);
1099                 if (ACPI_SUCCESS(status))
1100                         sc->light_val = arg;
1101                 return (status);
1102         }
1103
1104         return (0);
1105 }
1106
1107 static int
1108 acpi_thinkpad_volume_set(struct acpi_thinkpad_softc *sc, int arg)
1109 {
1110         int                     val, step;
1111         UINT64                  val_ec;
1112         ACPI_OBJECT             Arg;
1113         ACPI_OBJECT_LIST        Args;
1114         ACPI_STATUS             status;
1115
1116         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1117         ACPI_SERIAL_ASSERT(thinkpad);
1118
1119         if (arg < 0 || arg > 14)
1120                 return (EINVAL);
1121
1122         /* Read the current volume */
1123         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1124         if (ACPI_FAILURE(status))
1125                 return (status);
1126
1127         if (sc->cmos_handle) {
1128                 val = val_ec & THINKPAD_EC_MASK_VOL;
1129
1130                 Args.Count = 1;
1131                 Args.Pointer = &Arg;
1132                 Arg.Type = ACPI_TYPE_INTEGER;
1133                 Arg.Integer.Value = (arg > val) ? THINKPAD_CMOS_VOLUME_UP :
1134                                                   THINKPAD_CMOS_VOLUME_DOWN;
1135
1136                 step = (arg > val) ? 1 : -1;
1137                 for (int i = val; i != arg; i += step) {
1138                         status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1139                                                     &Args, NULL);
1140                         if (ACPI_FAILURE(status)) {
1141                                 /* Record the last value */
1142                                 if (i != val) {
1143                                         val_ec = i - step +
1144                                                  (val_ec & (~THINKPAD_EC_MASK_VOL));
1145                                         ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME,
1146                                                       val_ec, 1);
1147                                 }
1148                                 return (status);
1149                         }
1150                 }
1151         }
1152
1153         val_ec = arg + (val_ec & (~THINKPAD_EC_MASK_VOL));
1154         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, val_ec, 1);
1155 }
1156
1157 static int
1158 acpi_thinkpad_mute_set(struct acpi_thinkpad_softc *sc, int arg)
1159 {
1160         UINT64                  val_ec;
1161         ACPI_OBJECT             Arg;
1162         ACPI_OBJECT_LIST        Args;
1163         ACPI_STATUS             status;
1164
1165         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1166         ACPI_SERIAL_ASSERT(thinkpad);
1167
1168         if (arg < 0 || arg > 1)
1169                 return (EINVAL);
1170
1171         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1172         if (ACPI_FAILURE(status))
1173                 return (status);
1174
1175         if (sc->cmos_handle) {
1176                 Args.Count = 1;
1177                 Args.Pointer = &Arg;
1178                 Arg.Type = ACPI_TYPE_INTEGER;
1179                 Arg.Integer.Value = THINKPAD_CMOS_VOLUME_MUTE;
1180
1181                 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
1182                 if (ACPI_FAILURE(status))
1183                         return (status);
1184         }
1185
1186         val_ec = (arg == 1) ? val_ec | THINKPAD_EC_MASK_MUTE :
1187                               val_ec & (~THINKPAD_EC_MASK_MUTE);
1188         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, val_ec, 1);
1189 }
1190
1191 static void
1192 acpi_thinkpad_eventhandler(struct acpi_thinkpad_softc *sc, int arg)
1193 {
1194         int                     val;
1195         UINT64                  val_ec;
1196         ACPI_STATUS             status;
1197
1198         ACPI_SERIAL_BEGIN(thinkpad);
1199         switch (arg) {
1200 #if 0 /* XXX */
1201         case THINKPAD_EVENT_SUSPEND_TO_RAM:
1202                 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
1203                 break;
1204 #endif
1205
1206         case THINKPAD_EVENT_BLUETOOTH:
1207                 acpi_thinkpad_bluetooth_set(sc, (sc->wlan_bt_flags == 0));
1208                 break;
1209
1210         case THINKPAD_EVENT_BRIGHTNESS_UP:
1211         case THINKPAD_EVENT_BRIGHTNESS_DOWN:
1212                 /* Read the current brightness */
1213                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS,
1214                                       &val_ec, 1);
1215                 if (ACPI_FAILURE(status))
1216                         goto done;
1217
1218                 val = val_ec & THINKPAD_EC_MASK_BRI;
1219                 val = (arg == THINKPAD_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1;
1220                 acpi_thinkpad_brightness_set(sc, val);
1221                 break;
1222
1223         case THINKPAD_EVENT_THINKLIGHT:
1224                 acpi_thinkpad_thinklight_set(sc, (sc->light_val == 0));
1225                 break;
1226
1227         case THINKPAD_EVENT_VOLUME_UP:
1228         case THINKPAD_EVENT_VOLUME_DOWN:
1229                 /* Read the current volume */
1230                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1231                 if (ACPI_FAILURE(status))
1232                         goto done;
1233
1234                 val = val_ec & THINKPAD_EC_MASK_VOL;
1235                 val = (arg == THINKPAD_EVENT_VOLUME_UP) ? val + 1 : val - 1;
1236                 acpi_thinkpad_volume_set(sc, val);
1237                 break;
1238
1239         case THINKPAD_EVENT_MUTE:
1240                 /* Read the current value */
1241                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1242                 if (ACPI_FAILURE(status))
1243                         goto done;
1244
1245                 val = ((val_ec & THINKPAD_EC_MASK_MUTE) == THINKPAD_EC_MASK_MUTE);
1246                 acpi_thinkpad_mute_set(sc, (val == 0));
1247                 break;
1248
1249         default:
1250                 break;
1251         }
1252 done:
1253         ACPI_SERIAL_END(thinkpad);
1254 }
1255
1256 static void
1257 acpi_thinkpad_notify(ACPI_HANDLE h, UINT32 notify, void *context)
1258 {
1259         int             event, arg, type;
1260         device_t        dev = context;
1261         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
1262
1263         ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
1264
1265         if (notify != 0x80)
1266                 device_printf(dev, "Unknown notify\n");
1267
1268         for (;;) {
1269                 acpi_GetInteger(acpi_get_handle(dev), THINKPAD_NAME_EVENTS_GET,
1270                     &event);
1271
1272                 if (event == 0)
1273                         break;
1274
1275                 type = (event >> 12) & 0xf;
1276                 arg = event & 0xfff;
1277                 switch (type) {
1278                 case 1:
1279                         if (!(sc->events_availmask & (1 << (arg - 1)))) {
1280                                 device_printf(dev, "Unknown key %d\n", arg);
1281                                 break;
1282                         }
1283
1284                         /* Execute event handler */
1285                         if (sc->handler_events & (1 << (arg - 1)))
1286                                 acpi_thinkpad_eventhandler(sc, (arg & 0xff));
1287
1288                         /* Notify devd(8) */
1289                         acpi_UserNotify("THINKPAD", h, (arg & 0xff));
1290                         break;
1291                 default:
1292                         break;
1293                 }
1294         }
1295 }
1296
1297 static void
1298 acpi_thinkpad_refresh(void *arg)
1299 {
1300         struct acpi_thinkpad_softc *sc = (struct acpi_thinkpad_softc *)arg;
1301         int i, data;
1302
1303         for (i = 0; i < THINKPAD_TEMP_SENSORS; i++) {
1304                 char temp_cmd[] = "TMP0";
1305
1306                 temp_cmd[3] = '0' + i;
1307                 /*
1308                  * The TMPx methods seem to return +/- 128 or 0
1309                  * when the respecting sensor is not available
1310                  */
1311                 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
1312                     &data)) || ABS(data) == 128 || data == 0) {
1313                         sc->sensors[i].flags |= SENSOR_FINVALID;
1314                         continue;
1315                 }
1316                 if (sc->thermal_updt_supported)
1317                         /* Temperature is reported in tenth of Kelvin */
1318                         sc->sensors[i].value = data * 100000 - 50000;
1319                 else
1320                         sc->sensors[i].value = data * 1000000 + 273150000;
1321                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1322         }
1323
1324         if (sc->fan_handle) {
1325                 if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle,
1326                     NULL, &data)))
1327                         sc->sensors[i].flags |= SENSOR_FINVALID;
1328                 sc->sensors[i].value = data;
1329                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1330         } else {
1331                 UINT64 speed;
1332
1333                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSPEED, &speed, 2);
1334                 sc->sensors[i].value = speed;
1335                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1336         }
1337 }