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
  52 #include "acpi.h"
  53 #include "accommon.h"
  54 #include "acpivar.h"
  55
  56 #define _COMPONENT      ACPI_OEM
  57 ACPI_MODULE_NAME("THINKPAD")
  58
  59 /* Internal methods */
  60 #define ACPI_THINKPAD_METHOD_EVENTS             1
  61 #define ACPI_THINKPAD_METHOD_EVENTMASK          2
  62 #define ACPI_THINKPAD_METHOD_HOTKEY             3
  63 #define ACPI_THINKPAD_METHOD_BRIGHTNESS         4
  64 #define ACPI_THINKPAD_METHOD_VOLUME             5
  65 #define ACPI_THINKPAD_METHOD_MUTE               6
  66 #define ACPI_THINKPAD_METHOD_THINKLIGHT         7
  67 #define ACPI_THINKPAD_METHOD_BLUETOOTH          8
  68 #define ACPI_THINKPAD_METHOD_WLAN               9
  69 #define ACPI_THINKPAD_METHOD_FANSPEED           10
  70 #define ACPI_THINKPAD_METHOD_FANLEVEL           11
  71 #define ACPI_THINKPAD_METHOD_FANSTATUS          12
  72 #define ACPI_THINKPAD_METHOD_THERMAL            13
  73 #define ACPI_THINKPAD_METHOD_HANDLEREVENTS      14
  74
  75 /* Hotkeys/Buttons */
  76 #define THINKPAD_RTC_HOTKEY1                    0x64
  77 #define   THINKPAD_RTC_MASK_HOME                (1 << 0)
  78 #define   THINKPAD_RTC_MASK_SEARCH              (1 << 1)
  79 #define   THINKPAD_RTC_MASK_MAIL                (1 << 2)
  80 #define   THINKPAD_RTC_MASK_WLAN                (1 << 5)
  81 #define THINKPAD_RTC_HOTKEY2                    0x65
  82 #define   THINKPAD_RTC_MASK_THINKPAD            (1 << 3)
  83 #define   THINKPAD_RTC_MASK_ZOOM                (1 << 5)
  84 #define   THINKPAD_RTC_MASK_VIDEO               (1 << 6)
  85 #define   THINKPAD_RTC_MASK_HIBERNATE           (1 << 7)
  86 #define THINKPAD_RTC_THINKLIGHT                 0x66
  87 #define   THINKPAD_RTC_MASK_THINKLIGHT          (1 << 4)
  88 #define THINKPAD_RTC_SCREENEXPAND               0x67
  89 #define   THINKPAD_RTC_MASK_SCREENEXPAND        (1 << 5)
  90 #define THINKPAD_RTC_BRIGHTNESS                 0x6c
  91 #define   THINKPAD_RTC_MASK_BRIGHTNESS          (1 << 5)
  92 #define THINKPAD_RTC_VOLUME                     0x6e
  93 #define   THINKPAD_RTC_MASK_VOLUME              (1 << 7)
  94
  95 /* Embedded Controller registers */
  96 #define THINKPAD_EC_BRIGHTNESS                  0x31
  97 #define   THINKPAD_EC_MASK_BRI                  0x7
  98 #define THINKPAD_EC_VOLUME                      0x30
  99 #define   THINKPAD_EC_MASK_VOL                  0xf
 100 #define   THINKPAD_EC_MASK_MUTE                 (1 << 6)
 101 #define THINKPAD_EC_FANSTATUS                   0x2F
 102 #define   THINKPAD_EC_MASK_FANLEVEL             0x3f
 103 #define   THINKPAD_EC_MASK_FANDISENGAGED        (1 << 6)
 104 #define   THINKPAD_EC_MASK_FANSTATUS            (1 << 7)
 105 #define THINKPAD_EC_FANSPEED                    0x84
 106
 107 /* CMOS Commands */
 108 #define THINKPAD_CMOS_VOLUME_DOWN               0
 109 #define THINKPAD_CMOS_VOLUME_UP                 1
 110 #define THINKPAD_CMOS_VOLUME_MUTE               2
 111 #define THINKPAD_CMOS_BRIGHTNESS_UP             4
 112 #define THINKPAD_CMOS_BRIGHTNESS_DOWN           5
 113
 114 /* ACPI methods */
 115 #define THINKPAD_NAME_KEYLIGHT                  "KBLT"
 116 #define THINKPAD_NAME_WLAN_BT_GET               "GBDC"
 117 #define THINKPAD_NAME_WLAN_BT_SET               "SBDC"
 118 #define   THINKPAD_NAME_MASK_BT                 (1 << 1)
 119 #define   THINKPAD_NAME_MASK_WLAN               (1 << 2)
 120 #define THINKPAD_NAME_THERMAL_GET               "TMP7"
 121 #define THINKPAD_NAME_THERMAL_UPDT              "UPDT"
 122
 123 #define THINKPAD_NAME_EVENTS_STATUS_GET         "DHKC"
 124 #define THINKPAD_NAME_EVENTS_MASK_GET           "DHKN"
 125 #define THINKPAD_NAME_EVENTS_STATUS_SET         "MHKC"
 126 #define THINKPAD_NAME_EVENTS_MASK_SET           "MHKM"
 127 #define THINKPAD_NAME_EVENTS_GET                "MHKP"
 128 #define THINKPAD_NAME_EVENTS_AVAILMASK          "MHKA"
 129
 130 #define THINKPAD_NUM_SENSORS                    9
 131 #define THINKPAD_TEMP_SENSORS                   8
 132
 133 /* Event Code */
 134 #define THINKPAD_EVENT_LCD_BACKLIGHT            0x03
 135 #define THINKPAD_EVENT_SUSPEND_TO_RAM           0x04
 136 #define THINKPAD_EVENT_BLUETOOTH                0x05
 137 #define THINKPAD_EVENT_SCREEN_EXPAND            0x07
 138 #define THINKPAD_EVENT_SUSPEND_TO_DISK          0x0c
 139 #define THINKPAD_EVENT_BRIGHTNESS_UP            0x10
 140 #define THINKPAD_EVENT_BRIGHTNESS_DOWN          0x11
 141 #define THINKPAD_EVENT_THINKLIGHT               0x12
 142 #define THINKPAD_EVENT_ZOOM                     0x14
 143 #define THINKPAD_EVENT_VOLUME_UP                0x15
 144 #define THINKPAD_EVENT_VOLUME_DOWN              0x16
 145 #define THINKPAD_EVENT_MUTE                     0x17
 146 #define THINKPAD_EVENT_ACCESS_THINKPAD_BUTTON   0x18
 147
 148 #define ABS(x) (((x) < 0)? -(x) : (x))
 149
 150 struct acpi_thinkpad_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         /* sensors(9) related */
 187         struct ksensordev sensordev;
 188         struct ksensor sensors[THINKPAD_NUM_SENSORS];
 189
 190         unsigned int    handler_events;
 191
 192         struct sysctl_ctx_list   sysctl_ctx;
 193         struct sysctl_oid       *sysctl_tree;
 194 };
 195
 196 static struct {
 197         char    *name;
 198         int     method;
 199         char    *description;
 200         int     access;
 201 } acpi_thinkpad_sysctls[] = {
 202         {
 203                 .name           = "events",
 204                 .method         = ACPI_THINKPAD_METHOD_EVENTS,
 205                 .description    = "ACPI events enable",
 206                 .access         = CTLTYPE_INT | CTLFLAG_RW
 207         },
 208         {
 209                 .name           = "eventmask",
 210                 .method         = ACPI_THINKPAD_METHOD_EVENTMASK,
 211                 .description    = "ACPI eventmask",
 212                 .access         = CTLTYPE_INT | CTLFLAG_RW
 213         },
 214         {
 215                 .name           = "hotkey",
 216                 .method         = ACPI_THINKPAD_METHOD_HOTKEY,
 217                 .description    = "Key Status",
 218                 .access         = CTLTYPE_INT | CTLFLAG_RD
 219         },
 220         {
 221                 .name           = "lcd_brightness",
 222                 .method         = ACPI_THINKPAD_METHOD_BRIGHTNESS,
 223                 .description    = "LCD Brightness",
 224                 .access         = CTLTYPE_INT | CTLFLAG_RW
 225         },
 226         {
 227                 .name           = "volume",
 228                 .method         = ACPI_THINKPAD_METHOD_VOLUME,
 229                 .description    = "Volume",
 230                 .access         = CTLTYPE_INT | CTLFLAG_RW
 231         },
 232         {
 233                 .name           = "mute",
 234                 .method         = ACPI_THINKPAD_METHOD_MUTE,
 235                 .description    = "Mute",
 236                 .access         = CTLTYPE_INT | CTLFLAG_RW
 237         },
 238         {
 239                 .name           = "thinklight",
 240                 .method         = ACPI_THINKPAD_METHOD_THINKLIGHT,
 241                 .description    = "Thinklight enable",
 242                 .access         = CTLTYPE_INT | CTLFLAG_RW
 243         },
 244         {
 245                 .name           = "bluetooth",
 246                 .method         = ACPI_THINKPAD_METHOD_BLUETOOTH,
 247                 .description    = "Bluetooth enable",
 248                 .access         = CTLTYPE_INT | CTLFLAG_RW
 249         },
 250         {
 251                 .name           = "wlan",
 252                 .method         = ACPI_THINKPAD_METHOD_WLAN,
 253                 .description    = "WLAN enable",
 254                 .access         = CTLTYPE_INT | CTLFLAG_RD
 255         },
 256         {
 257                 .name           = "fan_speed",
 258                 .method         = ACPI_THINKPAD_METHOD_FANSPEED,
 259                 .description    = "Fan speed",
 260                 .access         = CTLTYPE_INT | CTLFLAG_RD
 261         },
 262         {
 263                 .name           = "fan_level",
 264                 .method         = ACPI_THINKPAD_METHOD_FANLEVEL,
 265                 .description    = "Fan level",
 266                 .access         = CTLTYPE_INT | CTLFLAG_RW
 267         },
 268         {
 269                 .name           = "fan",
 270                 .method         = ACPI_THINKPAD_METHOD_FANSTATUS,
 271                 .description    = "Fan enable",
 272                 .access         = CTLTYPE_INT | CTLFLAG_RW
 273         },
 274
 275         { NULL, 0, NULL, 0 }
 276 };
 277
 278 ACPI_SERIAL_DECL(thinkpad, "ACPI Thinkpad extras");
 279
 280 static int      acpi_thinkpad_probe(device_t dev);
 281 static int      acpi_thinkpad_attach(device_t dev);
 282 static int      acpi_thinkpad_detach(device_t dev);
 283 static int      acpi_thinkpad_resume(device_t dev);
 284
 285 #if 0 /* XXX */
 286 static void     thinkpad_led(void *softc, int onoff);
 287 static void     thinkpad_led_task(struct acpi_thinkpad_softc *sc, int pending __unused);
 288 #endif
 289
 290 static int      acpi_thinkpad_sysctl(SYSCTL_HANDLER_ARGS);
 291 static int      acpi_thinkpad_sysctl_init(struct acpi_thinkpad_softc *sc,
 292                 int method);
 293 static int      acpi_thinkpad_sysctl_get(struct acpi_thinkpad_softc *sc,
 294                 int method);
 295 static int      acpi_thinkpad_sysctl_set(struct acpi_thinkpad_softc *sc,
 296                 int method, int val);
 297
 298 static int      acpi_thinkpad_eventmask_set(struct acpi_thinkpad_softc *sc,
 299                 int val);
 300 static int      acpi_thinkpad_handlerevents_sysctl(SYSCTL_HANDLER_ARGS);
 301 static void     acpi_thinkpad_notify(ACPI_HANDLE h, UINT32 notify,
 302                 void *context);
 303 static void     acpi_thinkpad_refresh(void *);
 304
 305 static int      acpi_thinkpad_brightness_set(struct acpi_thinkpad_softc *sc, int arg);
 306 static int      acpi_thinkpad_bluetooth_set(struct acpi_thinkpad_softc *sc, int arg);
 307 static int      acpi_thinkpad_thinklight_set(struct acpi_thinkpad_softc *sc, int arg);
 308 static int      acpi_thinkpad_volume_set(struct acpi_thinkpad_softc *sc, int arg);
 309 static int      acpi_thinkpad_mute_set(struct acpi_thinkpad_softc *sc, int arg);
 310
 311 static device_method_t acpi_thinkpad_methods[] = {
 312         /* Device interface */
 313         DEVMETHOD(device_probe, acpi_thinkpad_probe),
 314         DEVMETHOD(device_attach, acpi_thinkpad_attach),
 315         DEVMETHOD(device_detach, acpi_thinkpad_detach),
 316         DEVMETHOD(device_resume, acpi_thinkpad_resume),
 317
 318         DEVMETHOD_END
 319 };
 320
 321 static driver_t acpi_thinkpad_driver = {
 322         "acpi_thinkpad",
 323         acpi_thinkpad_methods,
 324         sizeof(struct acpi_thinkpad_softc),
 325 };
 326
 327 static devclass_t acpi_thinkpad_devclass;
 328
 329 DRIVER_MODULE(acpi_thinkpad, acpi, acpi_thinkpad_driver,
 330     acpi_thinkpad_devclass, NULL, NULL);
 331 MODULE_DEPEND(acpi_thinkpad, acpi, 1, 1, 1);
 332 static char    *thinkpad_ids[] = {"IBM0068", "LEN0068", NULL};
 333
 334 #if 0 /* XXX */
 335 static void
 336 thinkpad_led(void *softc, int onoff)
 337 {
 338         struct acpi_thinkpad_softc* sc = (struct acpi_thinkpad_softc*) softc;
 339
 340         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 341
 342         if (sc->led_busy)
 343                 return;
 344
 345         sc->led_busy = 1;
 346         sc->led_state = onoff;
 347
 348         AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)thinkpad_led_task, sc);
 349 }
 350
 351 static void
 352 thinkpad_led_task(struct acpi_thinkpad_softc *sc, int pending __unused)
 353 {
 354         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 355
 356         ACPI_SERIAL_BEGIN(thinkpad);
 357         acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_THINKLIGHT, sc->led_state);
 358         ACPI_SERIAL_END(thinkpad);
 359
 360         sc->led_busy = 0;
 361 }
 362 #endif
 363
 364 static int
 365 acpi_thinkpad_probe(device_t dev)
 366 {
 367         if (acpi_disabled("thinkpad") ||
 368             ACPI_ID_PROBE(device_get_parent(dev), dev, thinkpad_ids) == NULL ||
 369             device_get_unit(dev) != 0)
 370                 return (ENXIO);
 371
 372         device_set_desc(dev, "IBM/Lenovo ThinkPad ACPI Extras");
 373         return (0);
 374 }
 375
 376 static int
 377 acpi_thinkpad_attach(device_t dev)
 378 {
 379         struct acpi_thinkpad_softc      *sc;
 380         struct acpi_softc       *acpi_sc;
 381         devclass_t              ec_devclass;
 382         int                     i;
 383
 384         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 385
 386         sc = device_get_softc(dev);
 387         sc->dev = dev;
 388         sc->handle = acpi_get_handle(dev);
 389
 390         acpi_sc = acpi_device_get_parent_softc(dev);
 391
 392         /* Look for the first embedded controller */
 393         if (!(ec_devclass = devclass_find ("acpi_ec"))) {
 394                 if (bootverbose)
 395                         device_printf(dev, "Couldn't find acpi_ec devclass\n");
 396                 return (EINVAL);
 397         }
 398         if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
 399                 if (bootverbose)
 400                         device_printf(dev, "Couldn't find acpi_ec device\n");
 401                 return (EINVAL);
 402         }
 403         sc->ec_handle = acpi_get_handle(sc->ec_dev);
 404
 405         sysctl_ctx_init(&sc->sysctl_ctx);
 406         sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
 407             SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
 408             "thinkpad", CTLFLAG_RD, 0, "");
 409
 410         /* Look for event mask and hook up the nodes */
 411         sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
 412             THINKPAD_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
 413
 414         if (sc->events_mask_supported) {
 415                 SYSCTL_ADD_UINT(&sc->sysctl_ctx,
 416                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 417                     "initialmask", CTLFLAG_RD,
 418                     &sc->events_initialmask, 0, "Initial eventmask");
 419
 420                 /* The availmask is the bitmask of supported events */
 421                 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
 422                     THINKPAD_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
 423                         sc->events_availmask = 0xffffffff;
 424
 425                 SYSCTL_ADD_UINT(&sc->sysctl_ctx,
 426                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 427                     "availmask", CTLFLAG_RD,
 428                     &sc->events_availmask, 0, "Mask of supported events");
 429         }
 430
 431         /* Hook up proc nodes */
 432         for (i = 0; acpi_thinkpad_sysctls[i].name != NULL; i++) {
 433                 if (!acpi_thinkpad_sysctl_init(sc,
 434                     acpi_thinkpad_sysctls[i].method))
 435                         continue;
 436
 437                 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
 438                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 439                     acpi_thinkpad_sysctls[i].name,
 440                     acpi_thinkpad_sysctls[i].access,
 441                     sc, i, acpi_thinkpad_sysctl, "I",
 442                     acpi_thinkpad_sysctls[i].description);
 443         }
 444
 445         /* Hook up handlerevents node */
 446         if (acpi_thinkpad_sysctl_init(sc, ACPI_THINKPAD_METHOD_HANDLEREVENTS)) {
 447                 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
 448                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 449                     "handlerevents", CTLTYPE_STRING | CTLFLAG_RW,
 450                     sc, 0, acpi_thinkpad_handlerevents_sysctl, "I",
 451                     "devd(8) events handled by acpi_thinkpad");
 452         }
 453
 454         /* Handle notifies */
 455         AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
 456             acpi_thinkpad_notify, dev);
 457
 458         /* Attach sensors(9). */
 459         if (sensor_task_register(sc, acpi_thinkpad_refresh, 5)) {
 460                 device_printf(sc->dev, "unable to register update task\n");
 461                 return 1;
 462         }
 463
 464         strlcpy(sc->sensordev.xname, device_get_nameunit(sc->dev),
 465             sizeof(sc->sensordev.xname));
 466
 467         for (i = 0; i < THINKPAD_TEMP_SENSORS; i++) {
 468                 sc->sensors[i].type = SENSOR_TEMP;
 469                 sensor_attach(&sc->sensordev, &sc->sensors[i]);
 470         }
 471
 472         sc->sensors[i].type = SENSOR_FANRPM;
 473         sensor_attach(&sc->sensordev, &sc->sensors[i]);
 474
 475         sensordev_install(&sc->sensordev);
 476
 477 #if 0 /* XXX */
 478         /* Hook up light to led(4) */
 479         if (sc->light_set_supported)
 480                 sc->led_dev = led_create_state(thinkpad_led, sc, "thinklight", sc->light_val);
 481 #endif
 482
 483         return (0);
 484 }
 485
 486 static int
 487 acpi_thinkpad_detach(device_t dev)
 488 {
 489         int i;
 490
 491         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 492
 493         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
 494
 495         /* Disable events and restore eventmask */
 496         ACPI_SERIAL_BEGIN(thinkpad);
 497         acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTS, 0);
 498         acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTMASK,
 499             sc->events_initialmask);
 500         ACPI_SERIAL_END(thinkpad);
 501
 502         AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
 503             acpi_thinkpad_notify);
 504
 505         if (sc->sysctl_tree != NULL)
 506                 sysctl_ctx_free(&sc->sysctl_ctx);
 507
 508         sensordev_deinstall(&sc->sensordev);
 509         for (i = 0; i < THINKPAD_NUM_SENSORS; i++)
 510                 sensor_detach(&sc->sensordev, &sc->sensors[i]);
 511         sensor_task_unregister(sc);
 512
 513 #if 0 /* XXX */
 514         if (sc->led_dev != NULL)
 515                 led_destroy(sc->led_dev);
 516 #endif
 517
 518         return (0);
 519 }
 520
 521 static int
 522 acpi_thinkpad_resume(device_t dev)
 523 {
 524         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
 525
 526         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 527
 528         ACPI_SERIAL_BEGIN(thinkpad);
 529         for (int i = 0; acpi_thinkpad_sysctls[i].name != NULL; i++) {
 530                 int val;
 531
 532                 if ((acpi_thinkpad_sysctls[i].access & CTLFLAG_RD) == 0) {
 533                         continue;
 534                 }
 535
 536                 val = acpi_thinkpad_sysctl_get(sc, i);
 537
 538                 if ((acpi_thinkpad_sysctls[i].access & CTLFLAG_WR) == 0) {
 539                         continue;
 540                 }
 541
 542                 acpi_thinkpad_sysctl_set(sc, i, val);
 543         }
 544         ACPI_SERIAL_END(thinkpad);
 545
 546         return (0);
 547 }
 548
 549 static int
 550 acpi_thinkpad_eventmask_set(struct acpi_thinkpad_softc *sc, int val)
 551 {
 552         int i;
 553         ACPI_OBJECT             arg[2];
 554         ACPI_OBJECT_LIST        args;
 555         ACPI_STATUS             status;
 556
 557         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 558         ACPI_SERIAL_ASSERT(thinkpad);
 559
 560         args.Count = 2;
 561         args.Pointer = arg;
 562         arg[0].Type = ACPI_TYPE_INTEGER;
 563         arg[1].Type = ACPI_TYPE_INTEGER;
 564
 565         for (i = 0; i < 32; ++i) {
 566                 arg[0].Integer.Value = i+1;
 567                 arg[1].Integer.Value = (((1 << i) & val) != 0);
 568                 status = AcpiEvaluateObject(sc->handle,
 569                     THINKPAD_NAME_EVENTS_MASK_SET, &args, NULL);
 570
 571                 if (ACPI_FAILURE(status))
 572                         return (status);
 573         }
 574
 575         return (0);
 576 }
 577
 578 static int
 579 acpi_thinkpad_sysctl(SYSCTL_HANDLER_ARGS)
 580 {
 581         struct acpi_thinkpad_softc      *sc;
 582         int                     arg;
 583         int                     error = 0;
 584         int                     function;
 585         int                     method;
 586
 587         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 588
 589         sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1;
 590         function = oidp->oid_arg2;
 591         method = acpi_thinkpad_sysctls[function].method;
 592
 593         ACPI_SERIAL_BEGIN(thinkpad);
 594         arg = acpi_thinkpad_sysctl_get(sc, method);
 595         error = sysctl_handle_int(oidp, &arg, 0, req);
 596
 597         /* Sanity check */
 598         if (error != 0 || req->newptr == NULL)
 599                 goto out;
 600
 601         /* Update */
 602         error = acpi_thinkpad_sysctl_set(sc, method, arg);
 603
 604 out:
 605         ACPI_SERIAL_END(thinkpad);
 606         return (error);
 607 }
 608
 609 static int
 610 acpi_thinkpad_sysctl_get(struct acpi_thinkpad_softc *sc, int method)
 611 {
 612         UINT64          val_ec;
 613         int             val = 0, key;
 614
 615         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 616         ACPI_SERIAL_ASSERT(thinkpad);
 617
 618         switch (method) {
 619         case ACPI_THINKPAD_METHOD_EVENTS:
 620                 acpi_GetInteger(sc->handle, THINKPAD_NAME_EVENTS_STATUS_GET,
 621                     &val);
 622                 break;
 623
 624         case ACPI_THINKPAD_METHOD_EVENTMASK:
 625                 if (sc->events_mask_supported)
 626                         acpi_GetInteger(sc->handle,
 627                             THINKPAD_NAME_EVENTS_MASK_GET, &val);
 628                 break;
 629
 630         case ACPI_THINKPAD_METHOD_HOTKEY:
 631                 /*
 632                  * Construct the hotkey as a bitmask as illustrated below.
 633                  * Note that whenever a key was pressed, the respecting bit
 634                  * toggles and nothing else changes.
 635                  * +--+--+-+-+-+-+-+-+-+-+-+-+
 636                  * |11|10|9|8|7|6|5|4|3|2|1|0|
 637                  * +--+--+-+-+-+-+-+-+-+-+-+-+
 638                  *   |  | | | | | | | | | | |
 639                  *   |  | | | | | | | | | | +- Home Button
 640                  *   |  | | | | | | | | | +--- Search Button
 641                  *   |  | | | | | | | | +----- Mail Button
 642                  *   |  | | | | | | | +------- Thinkpad Button
 643                  *   |  | | | | | | +--------- Zoom (Fn + Space)
 644                  *   |  | | | | | +----------- WLAN Button
 645                  *   |  | | | | +------------- Video Button
 646                  *   |  | | | +--------------- Hibernate Button
 647                  *   |  | | +----------------- Thinklight Button
 648                  *   |  | +------------------- Screen expand (Fn + F8)
 649                  *   |  +--------------------- Brightness
 650                  *   +------------------------ Volume/Mute
 651                  */
 652                 key = rtcin(THINKPAD_RTC_HOTKEY1);
 653                 val = (THINKPAD_RTC_MASK_HOME | THINKPAD_RTC_MASK_SEARCH |
 654                     THINKPAD_RTC_MASK_MAIL | THINKPAD_RTC_MASK_WLAN) & key;
 655                 key = rtcin(THINKPAD_RTC_HOTKEY2);
 656                 val |= (THINKPAD_RTC_MASK_THINKPAD | THINKPAD_RTC_MASK_VIDEO |
 657                     THINKPAD_RTC_MASK_HIBERNATE) & key;
 658                 val |= (THINKPAD_RTC_MASK_ZOOM & key) >> 1;
 659                 key = rtcin(THINKPAD_RTC_THINKLIGHT);
 660                 val |= (THINKPAD_RTC_MASK_THINKLIGHT & key) << 4;
 661                 key = rtcin(THINKPAD_RTC_SCREENEXPAND);
 662                 val |= (THINKPAD_RTC_MASK_THINKLIGHT & key) << 4;
 663                 key = rtcin(THINKPAD_RTC_BRIGHTNESS);
 664                 val |= (THINKPAD_RTC_MASK_BRIGHTNESS & key) << 5;
 665                 key = rtcin(THINKPAD_RTC_VOLUME);
 666                 val |= (THINKPAD_RTC_MASK_VOLUME & key) << 4;
 667                 break;
 668
 669         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 670                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, &val_ec, 1);
 671                 val = val_ec & THINKPAD_EC_MASK_BRI;
 672                 break;
 673
 674         case ACPI_THINKPAD_METHOD_VOLUME:
 675                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
 676                 val = val_ec & THINKPAD_EC_MASK_VOL;
 677                 break;
 678
 679         case ACPI_THINKPAD_METHOD_MUTE:
 680                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
 681                 val = ((val_ec & THINKPAD_EC_MASK_MUTE) ==
 682                     THINKPAD_EC_MASK_MUTE);
 683                 break;
 684
 685         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 686                 if (sc->light_get_supported)
 687                         acpi_GetInteger(sc->ec_handle, THINKPAD_NAME_KEYLIGHT,
 688                             &val);
 689                 else
 690                         val = sc->light_val;
 691                 break;
 692
 693         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 694                 acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &val);
 695                 sc->wlan_bt_flags = val;
 696                 val = ((val & THINKPAD_NAME_MASK_BT) != 0);
 697                 break;
 698
 699         case ACPI_THINKPAD_METHOD_WLAN:
 700                 acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &val);
 701                 sc->wlan_bt_flags = val;
 702                 val = ((val & THINKPAD_NAME_MASK_WLAN) != 0);
 703                 break;
 704
 705         case ACPI_THINKPAD_METHOD_FANSPEED:
 706                 if (sc->fan_handle) {
 707                         if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle,
 708                             NULL, &val)))
 709                                 val = -1;
 710                 }
 711                 else {
 712                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSPEED,
 713                             &val_ec, 2);
 714                         val = val_ec;
 715                 }
 716                 break;
 717
 718         case ACPI_THINKPAD_METHOD_FANLEVEL:
 719                 /*
 720                  * The THINKPAD_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, THINKPAD_EC_FANSTATUS,
 730                             &val_ec, 1);
 731                         val = val_ec & THINKPAD_EC_MASK_FANLEVEL;
 732                 }
 733                 break;
 734
 735         case ACPI_THINKPAD_METHOD_FANSTATUS:
 736                 if (!sc->fan_handle) {
 737                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 738                             &val_ec, 1);
 739                         val = (val_ec & THINKPAD_EC_MASK_FANSTATUS) ==
 740                             THINKPAD_EC_MASK_FANSTATUS;
 741                 }
 742                 else
 743                         val = -1;
 744                 break;
 745         }
 746
 747         return (val);
 748 }
 749
 750 static int
 751 acpi_thinkpad_sysctl_set(struct acpi_thinkpad_softc *sc, int method, int arg)
 752 {
 753         int                     val;
 754         UINT64                  val_ec;
 755         ACPI_STATUS             status;
 756
 757         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 758         ACPI_SERIAL_ASSERT(thinkpad);
 759
 760         switch (method) {
 761         case ACPI_THINKPAD_METHOD_EVENTS:
 762                 if (arg < 0 || arg > 1)
 763                         return (EINVAL);
 764
 765                 status = acpi_SetInteger(sc->handle,
 766                     THINKPAD_NAME_EVENTS_STATUS_SET, arg);
 767                 if (ACPI_FAILURE(status))
 768                         return (status);
 769                 if (sc->events_mask_supported)
 770                         return acpi_thinkpad_eventmask_set(sc,
 771                             sc->events_availmask);
 772                 break;
 773
 774         case ACPI_THINKPAD_METHOD_EVENTMASK:
 775                 if (sc->events_mask_supported)
 776                         return acpi_thinkpad_eventmask_set(sc, arg);
 777                 break;
 778
 779         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 780                 return acpi_thinkpad_brightness_set(sc, arg);
 781                 break;
 782
 783         case ACPI_THINKPAD_METHOD_VOLUME:
 784                 return acpi_thinkpad_volume_set(sc, arg);
 785                 break;
 786
 787         case ACPI_THINKPAD_METHOD_MUTE:
 788                 return acpi_thinkpad_mute_set(sc, arg);
 789                 break;
 790
 791         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 792                 return acpi_thinkpad_thinklight_set(sc, arg);
 793                 break;
 794
 795         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 796                 return acpi_thinkpad_bluetooth_set(sc, arg);
 797                 break;
 798
 799         case ACPI_THINKPAD_METHOD_FANLEVEL:
 800                 if (arg < 0 || arg > 7)
 801                         return (EINVAL);
 802
 803                 if (!sc->fan_handle) {
 804                         /* Read the current fanstatus */
 805                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 806                             &val_ec, 1);
 807                         val = val_ec & (~THINKPAD_EC_MASK_FANLEVEL);
 808
 809                         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 810                             val | arg, 1);
 811                 }
 812                 break;
 813
 814         case ACPI_THINKPAD_METHOD_FANSTATUS:
 815                 if (arg < 0 || arg > 1)
 816                         return (EINVAL);
 817
 818                 if (!sc->fan_handle) {
 819                         /* Read the current fanstatus */
 820                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 821                             &val_ec, 1);
 822
 823                         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 824                             (arg == 1) ? (val_ec | THINKPAD_EC_MASK_FANSTATUS) :
 825                             (val_ec & (~THINKPAD_EC_MASK_FANSTATUS)), 1);
 826                 }
 827                 break;
 828         }
 829
 830         return (0);
 831 }
 832
 833 static int
 834 acpi_thinkpad_sysctl_init(struct acpi_thinkpad_softc *sc, int method)
 835 {
 836         int                     dummy;
 837         ACPI_OBJECT_TYPE        cmos_t;
 838         ACPI_HANDLE             ledb_handle;
 839
 840         switch (method) {
 841         case ACPI_THINKPAD_METHOD_EVENTS:
 842                 /* Events are disabled by default */
 843                 return (TRUE);
 844
 845         case ACPI_THINKPAD_METHOD_EVENTMASK:
 846                 return (sc->events_mask_supported);
 847
 848         case ACPI_THINKPAD_METHOD_HOTKEY:
 849         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 850         case ACPI_THINKPAD_METHOD_VOLUME:
 851         case ACPI_THINKPAD_METHOD_MUTE:
 852                 /* EC is required here, which was already checked before */
 853                 return (TRUE);
 854
 855         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 856                 sc->cmos_handle = NULL;
 857                 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(
 858                     sc->ec_handle, THINKPAD_NAME_KEYLIGHT, &sc->light_val));
 859
 860                 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS",
 861                     &sc->light_handle)) ||
 862                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS",
 863                     &sc->light_handle)) ||
 864                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS",
 865                     &sc->light_handle))) &&
 866                     ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
 867                     cmos_t == ACPI_TYPE_METHOD) {
 868                         sc->light_cmd_on = 0x0c;
 869                         sc->light_cmd_off = 0x0d;
 870                         sc->cmos_handle = sc->light_handle;
 871                 }
 872                 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT",
 873                     &sc->light_handle))) {
 874                         sc->light_cmd_on = 1;
 875                         sc->light_cmd_off = 0;
 876                 }
 877                 else
 878                         sc->light_handle = NULL;
 879
 880                 sc->light_set_supported = (sc->light_handle &&
 881                     ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB",
 882                     &ledb_handle)));
 883
 884                 if (sc->light_get_supported)
 885                         return (TRUE);
 886
 887                 if (sc->light_set_supported) {
 888                         sc->light_val = 0;
 889                         return (TRUE);
 890                 }
 891
 892                 return (FALSE);
 893
 894         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 895         case ACPI_THINKPAD_METHOD_WLAN:
 896                 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle,
 897                     THINKPAD_NAME_WLAN_BT_GET, &dummy)))
 898                         return (TRUE);
 899                 return (FALSE);
 900
 901         case ACPI_THINKPAD_METHOD_FANSPEED:
 902                 /*
 903                  * Some models report the fan speed in levels from 0-7
 904                  * Newer models report it contiguously
 905                  */
 906                 sc->fan_levels = (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN",
 907                     &sc->fan_handle)) ||
 908                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD",
 909                     &sc->fan_handle)));
 910                 return (TRUE);
 911
 912         case ACPI_THINKPAD_METHOD_FANLEVEL:
 913         case ACPI_THINKPAD_METHOD_FANSTATUS:
 914                 /*
 915                  * Fan status is only supported on those models,
 916                  * which report fan RPM contiguously, not in levels
 917                  */
 918                 if (sc->fan_levels)
 919                         return (FALSE);
 920                 return (TRUE);
 921
 922         case ACPI_THINKPAD_METHOD_THERMAL:
 923                 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle,
 924                     THINKPAD_NAME_THERMAL_GET, &dummy))) {
 925                         sc->thermal_updt_supported =
 926                             ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle,
 927                             THINKPAD_NAME_THERMAL_UPDT, &dummy));
 928                         return (TRUE);
 929                 }
 930                 return (FALSE);
 931
 932         case ACPI_THINKPAD_METHOD_HANDLEREVENTS:
 933                 return (TRUE);
 934         }
 935         return (FALSE);
 936 }
 937
 938 static int
 939 acpi_thinkpad_handlerevents_sysctl(SYSCTL_HANDLER_ARGS)
 940 {
 941         struct acpi_thinkpad_softc      *sc;
 942         int                     error = 0;
 943         struct sbuf             sb;
 944         char                    *cp, *ep;
 945         int                     l, val;
 946         unsigned int            handler_events;
 947
 948         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 949
 950         sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1;
 951
 952         if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL)
 953                 return (ENOMEM);
 954
 955         ACPI_SERIAL_BEGIN(thinkpad);
 956
 957         /* Get old values if this is a get request. */
 958         if (req->newptr == NULL) {
 959                 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++)
 960                         if (sc->handler_events & (1 << i))
 961                                 sbuf_printf(&sb, "0x%02x ", i + 1);
 962                 if (sbuf_len(&sb) == 0)
 963                         sbuf_printf(&sb, "NONE");
 964         }
 965
 966         sbuf_trim(&sb);
 967         sbuf_finish(&sb);
 968
 969         /* Copy out the old values to the user. */
 970         error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb));
 971         sbuf_delete(&sb);
 972
 973         if (error != 0 || req->newptr == NULL)
 974                 goto out;
 975
 976         /* If the user is setting a string, parse it. */
 977         handler_events = 0;
 978         cp = (char *)req->newptr;
 979         while (*cp) {
 980                 if (isspace(*cp)) {
 981                         cp++;
 982                         continue;
 983                 }
 984
 985                 ep = cp;
 986
 987                 while (*ep && !isspace(*ep))
 988                         ep++;
 989
 990                 l = ep - cp;
 991                 if (l == 0)
 992                         break;
 993
 994                 if (strncmp(cp, "NONE", 4) == 0) {
 995                         cp = ep;
 996                         continue;
 997                 }
 998
 999                 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x'))
1000                         val = strtoul(cp, &ep, 16);
1001                 else
1002                         val = strtoul(cp, &ep, 10);
1003
1004                 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) {
1005                         cp[l] = '\0';
1006                         device_printf(sc->dev, "invalid event code: %s\n", cp);
1007                         error = EINVAL;
1008                         goto out;
1009                 }
1010
1011                 handler_events |= 1 << (val - 1);
1012
1013                 cp = ep;
1014         }
1015
1016         sc->handler_events = handler_events;
1017 out:
1018         ACPI_SERIAL_END(thinkpad);
1019         return (error);
1020 }
1021
1022 static int
1023 acpi_thinkpad_brightness_set(struct acpi_thinkpad_softc *sc, int arg)
1024 {
1025         int                     val, step;
1026         UINT64                  val_ec;
1027         ACPI_OBJECT             Arg;
1028         ACPI_OBJECT_LIST        Args;
1029         ACPI_STATUS             status;
1030
1031         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1032         ACPI_SERIAL_ASSERT(thinkpad);
1033
1034         if (arg < 0 || arg > 7)
1035                 return (EINVAL);
1036
1037         /* Read the current brightness */
1038         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, &val_ec, 1);
1039         if (ACPI_FAILURE(status))
1040                 return (status);
1041
1042         if (sc->cmos_handle) {
1043                 val = val_ec & THINKPAD_EC_MASK_BRI;
1044
1045                 Args.Count = 1;
1046                 Args.Pointer = &Arg;
1047                 Arg.Type = ACPI_TYPE_INTEGER;
1048                 Arg.Integer.Value = (arg > val) ? THINKPAD_CMOS_BRIGHTNESS_UP :
1049                                                   THINKPAD_CMOS_BRIGHTNESS_DOWN;
1050
1051                 step = (arg > val) ? 1 : -1;
1052                 for (int i = val; i != arg; i += step) {
1053                         status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1054                                                     &Args, NULL);
1055                         if (ACPI_FAILURE(status)) {
1056                                 /* Record the last value */
1057                                 if (i != val) {
1058                                         ACPI_EC_WRITE(sc->ec_dev,
1059                                             THINKPAD_EC_BRIGHTNESS, i - step, 1);
1060                                 }
1061                                 return (status);
1062                         }
1063                 }
1064         }
1065
1066         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, arg, 1);
1067 }
1068
1069 static int
1070 acpi_thinkpad_bluetooth_set(struct acpi_thinkpad_softc *sc, int arg)
1071 {
1072         int                     val;
1073
1074         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1075         ACPI_SERIAL_ASSERT(thinkpad);
1076
1077         if (arg < 0 || arg > 1)
1078                 return (EINVAL);
1079
1080         val = (arg == 1) ? sc->wlan_bt_flags | THINKPAD_NAME_MASK_BT :
1081                            sc->wlan_bt_flags & (~THINKPAD_NAME_MASK_BT);
1082         return acpi_SetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_SET, val);
1083 }
1084
1085 static int
1086 acpi_thinkpad_thinklight_set(struct acpi_thinkpad_softc *sc, int arg)
1087 {
1088         ACPI_OBJECT             Arg;
1089         ACPI_OBJECT_LIST        Args;
1090         ACPI_STATUS             status;
1091
1092         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1093         ACPI_SERIAL_ASSERT(thinkpad);
1094
1095         if (arg < 0 || arg > 1)
1096                 return (EINVAL);
1097
1098         if (sc->light_set_supported) {
1099                 Args.Count = 1;
1100                 Args.Pointer = &Arg;
1101                 Arg.Type = ACPI_TYPE_INTEGER;
1102                 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
1103
1104                 status = AcpiEvaluateObject(sc->light_handle, NULL,
1105                                             &Args, NULL);
1106                 if (ACPI_SUCCESS(status))
1107                         sc->light_val = arg;
1108                 return (status);
1109         }
1110
1111         return (0);
1112 }
1113
1114 static int
1115 acpi_thinkpad_volume_set(struct acpi_thinkpad_softc *sc, int arg)
1116 {
1117         int                     val, step;
1118         UINT64                  val_ec;
1119         ACPI_OBJECT             Arg;
1120         ACPI_OBJECT_LIST        Args;
1121         ACPI_STATUS             status;
1122
1123         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1124         ACPI_SERIAL_ASSERT(thinkpad);
1125
1126         if (arg < 0 || arg > 14)
1127                 return (EINVAL);
1128
1129         /* Read the current volume */
1130         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1131         if (ACPI_FAILURE(status))
1132                 return (status);
1133
1134         if (sc->cmos_handle) {
1135                 val = val_ec & THINKPAD_EC_MASK_VOL;
1136
1137                 Args.Count = 1;
1138                 Args.Pointer = &Arg;
1139                 Arg.Type = ACPI_TYPE_INTEGER;
1140                 Arg.Integer.Value = (arg > val) ? THINKPAD_CMOS_VOLUME_UP :
1141                                                   THINKPAD_CMOS_VOLUME_DOWN;
1142
1143                 step = (arg > val) ? 1 : -1;
1144                 for (int i = val; i != arg; i += step) {
1145                         status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1146                                                     &Args, NULL);
1147                         if (ACPI_FAILURE(status)) {
1148                                 /* Record the last value */
1149                                 if (i != val) {
1150                                         val_ec = i - step +
1151                                                  (val_ec & (~THINKPAD_EC_MASK_VOL));
1152                                         ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME,
1153                                                       val_ec, 1);
1154                                 }
1155                                 return (status);
1156                         }
1157                 }
1158         }
1159
1160         val_ec = arg + (val_ec & (~THINKPAD_EC_MASK_VOL));
1161         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, val_ec, 1);
1162 }
1163
1164 static int
1165 acpi_thinkpad_mute_set(struct acpi_thinkpad_softc *sc, int arg)
1166 {
1167         UINT64                  val_ec;
1168         ACPI_OBJECT             Arg;
1169         ACPI_OBJECT_LIST        Args;
1170         ACPI_STATUS             status;
1171
1172         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1173         ACPI_SERIAL_ASSERT(thinkpad);
1174
1175         if (arg < 0 || arg > 1)
1176                 return (EINVAL);
1177
1178         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1179         if (ACPI_FAILURE(status))
1180                 return (status);
1181
1182         if (sc->cmos_handle) {
1183                 Args.Count = 1;
1184                 Args.Pointer = &Arg;
1185                 Arg.Type = ACPI_TYPE_INTEGER;
1186                 Arg.Integer.Value = THINKPAD_CMOS_VOLUME_MUTE;
1187
1188                 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
1189                 if (ACPI_FAILURE(status))
1190                         return (status);
1191         }
1192
1193         val_ec = (arg == 1) ? val_ec | THINKPAD_EC_MASK_MUTE :
1194                               val_ec & (~THINKPAD_EC_MASK_MUTE);
1195         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, val_ec, 1);
1196 }
1197
1198 static void
1199 acpi_thinkpad_eventhandler(struct acpi_thinkpad_softc *sc, int arg)
1200 {
1201         int                     val;
1202         UINT64                  val_ec;
1203         ACPI_STATUS             status;
1204
1205         ACPI_SERIAL_BEGIN(thinkpad);
1206         switch (arg) {
1207 #if 0 /* XXX */
1208         case THINKPAD_EVENT_SUSPEND_TO_RAM:
1209                 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
1210                 break;
1211 #endif
1212
1213         case THINKPAD_EVENT_BLUETOOTH:
1214                 acpi_thinkpad_bluetooth_set(sc, (sc->wlan_bt_flags == 0));
1215                 break;
1216
1217         case THINKPAD_EVENT_BRIGHTNESS_UP:
1218         case THINKPAD_EVENT_BRIGHTNESS_DOWN:
1219                 /* Read the current brightness */
1220                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS,
1221                                       &val_ec, 1);
1222                 if (ACPI_FAILURE(status))
1223                         return;
1224
1225                 val = val_ec & THINKPAD_EC_MASK_BRI;
1226                 val = (arg == THINKPAD_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1;
1227                 acpi_thinkpad_brightness_set(sc, val);
1228                 break;
1229
1230         case THINKPAD_EVENT_THINKLIGHT:
1231                 acpi_thinkpad_thinklight_set(sc, (sc->light_val == 0));
1232                 break;
1233
1234         case THINKPAD_EVENT_VOLUME_UP:
1235         case THINKPAD_EVENT_VOLUME_DOWN:
1236                 /* Read the current volume */
1237                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1238                 if (ACPI_FAILURE(status))
1239                         return;
1240
1241                 val = val_ec & THINKPAD_EC_MASK_VOL;
1242                 val = (arg == THINKPAD_EVENT_VOLUME_UP) ? val + 1 : val - 1;
1243                 acpi_thinkpad_volume_set(sc, val);
1244                 break;
1245
1246         case THINKPAD_EVENT_MUTE:
1247                 /* Read the current value */
1248                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1249                 if (ACPI_FAILURE(status))
1250                         return;
1251
1252                 val = ((val_ec & THINKPAD_EC_MASK_MUTE) == THINKPAD_EC_MASK_MUTE);
1253                 acpi_thinkpad_mute_set(sc, (val == 0));
1254                 break;
1255
1256         default:
1257                 break;
1258         }
1259         ACPI_SERIAL_END(thinkpad);
1260 }
1261
1262 static void
1263 acpi_thinkpad_notify(ACPI_HANDLE h, UINT32 notify, void *context)
1264 {
1265         int             event, arg, type;
1266         device_t        dev = context;
1267         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
1268
1269         ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
1270
1271         if (notify != 0x80)
1272                 device_printf(dev, "Unknown notify\n");
1273
1274         for (;;) {
1275                 acpi_GetInteger(acpi_get_handle(dev), THINKPAD_NAME_EVENTS_GET,
1276                     &event);
1277
1278                 if (event == 0)
1279                         break;
1280
1281                 type = (event >> 12) & 0xf;
1282                 arg = event & 0xfff;
1283                 switch (type) {
1284                 case 1:
1285                         if (!(sc->events_availmask & (1 << (arg - 1)))) {
1286                                 device_printf(dev, "Unknown key %d\n", arg);
1287                                 break;
1288                         }
1289
1290                         /* Execute event handler */
1291                         if (sc->handler_events & (1 << (arg - 1)))
1292                                 acpi_thinkpad_eventhandler(sc, (arg & 0xff));
1293
1294                         /* Notify devd(8) */
1295                         acpi_UserNotify("THINKPAD", h, (arg & 0xff));
1296                         break;
1297                 default:
1298                         break;
1299                 }
1300         }
1301 }
1302
1303 static void
1304 acpi_thinkpad_refresh(void *arg)
1305 {
1306         struct acpi_thinkpad_softc *sc = (struct acpi_thinkpad_softc *)arg;
1307         int i, data;
1308
1309         for (i = 0; i < THINKPAD_TEMP_SENSORS; i++) {
1310                 char temp_cmd[] = "TMP0";
1311
1312                 temp_cmd[3] = '0' + i;
1313                 /*
1314                  * The TMPx methods seem to return +/- 128 or 0
1315                  * when the respecting sensor is not available
1316                  */
1317                 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
1318                     &data)) || ABS(data) == 128 || data == 0) {
1319                         sc->sensors[i].flags |= SENSOR_FINVALID;
1320                         continue;
1321                 }
1322                 if (sc->thermal_updt_supported)
1323                         /* Temperature is reported in tenth of Kelvin */
1324                         sc->sensors[i].value = data * 100000 - 50000;
1325                 else
1326                         sc->sensors[i].value = data * 1000000 + 273150000;
1327                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1328         }
1329
1330         if (sc->fan_handle) {
1331                 if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle,
1332                     NULL, &data)))
1333                         sc->sensors[i].flags |= SENSOR_FINVALID;
1334                 sc->sensors[i].value = data;
1335                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1336         } else {
1337                 ACPI_INTEGER speed;
1338
1339                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSPEED, &speed, 2);
1340                 sc->sensors[i].value = speed;
1341                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1342         }
1343 }