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_SERIAL_INIT(thinkpad);
 382         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 383
 384         sc = device_get_softc(dev);
 385         sc->dev = dev;
 386         sc->handle = acpi_get_handle(dev);
 387
 388         acpi_sc = acpi_device_get_parent_softc(dev);
 389
 390         /* Look for the first embedded controller */
 391         if (!(ec_devclass = devclass_find ("acpi_ec"))) {
 392                 if (bootverbose)
 393                         device_printf(dev, "Couldn't find acpi_ec devclass\n");
 394                 return (EINVAL);
 395         }
 396         if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
 397                 if (bootverbose)
 398                         device_printf(dev, "Couldn't find acpi_ec device\n");
 399                 return (EINVAL);
 400         }
 401         sc->ec_handle = acpi_get_handle(sc->ec_dev);
 402
 403         sysctl_ctx_init(&sc->sysctl_ctx);
 404         sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
 405             SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
 406             "thinkpad", CTLFLAG_RD, 0, "");
 407
 408         /* Look for event mask and hook up the nodes */
 409         sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
 410             THINKPAD_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
 411
 412         if (sc->events_mask_supported) {
 413                 SYSCTL_ADD_UINT(&sc->sysctl_ctx,
 414                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 415                     "initialmask", CTLFLAG_RD,
 416                     &sc->events_initialmask, 0, "Initial eventmask");
 417
 418                 /* The availmask is the bitmask of supported events */
 419                 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
 420                     THINKPAD_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
 421                         sc->events_availmask = 0xffffffff;
 422
 423                 SYSCTL_ADD_UINT(&sc->sysctl_ctx,
 424                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 425                     "availmask", CTLFLAG_RD,
 426                     &sc->events_availmask, 0, "Mask of supported events");
 427         }
 428
 429         /* Hook up proc nodes */
 430         for (i = 0; acpi_thinkpad_sysctls[i].name != NULL; i++) {
 431                 if (!acpi_thinkpad_sysctl_init(sc,
 432                     acpi_thinkpad_sysctls[i].method))
 433                         continue;
 434
 435                 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
 436                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 437                     acpi_thinkpad_sysctls[i].name,
 438                     acpi_thinkpad_sysctls[i].access,
 439                     sc, i, acpi_thinkpad_sysctl, "I",
 440                     acpi_thinkpad_sysctls[i].description);
 441         }
 442
 443         /* Hook up handlerevents node */
 444         if (acpi_thinkpad_sysctl_init(sc, ACPI_THINKPAD_METHOD_HANDLEREVENTS)) {
 445                 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
 446                     SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
 447                     "handlerevents", CTLTYPE_STRING | CTLFLAG_RW,
 448                     sc, 0, acpi_thinkpad_handlerevents_sysctl, "I",
 449                     "devd(8) events handled by acpi_thinkpad");
 450         }
 451
 452         /* Handle notifies */
 453         AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
 454             acpi_thinkpad_notify, dev);
 455
 456         /* Attach sensors(9). */
 457         if (sensor_task_register(sc, acpi_thinkpad_refresh, 5)) {
 458                 device_printf(sc->dev, "unable to register update task\n");
 459                 return 1;
 460         }
 461
 462         strlcpy(sc->sensordev.xname, device_get_nameunit(sc->dev),
 463             sizeof(sc->sensordev.xname));
 464
 465         for (i = 0; i < THINKPAD_TEMP_SENSORS; i++) {
 466                 sc->sensors[i].type = SENSOR_TEMP;
 467                 sensor_attach(&sc->sensordev, &sc->sensors[i]);
 468         }
 469
 470         sc->sensors[i].type = SENSOR_FANRPM;
 471         sensor_attach(&sc->sensordev, &sc->sensors[i]);
 472
 473         sensordev_install(&sc->sensordev);
 474
 475         /* Hook up light to led(4) */
 476         if (sc->light_set_supported)
 477                 sc->led_dev = led_create_state(thinkpad_led, sc, "thinklight", sc->light_val);
 478
 479         return (0);
 480 }
 481
 482 static int
 483 acpi_thinkpad_detach(device_t dev)
 484 {
 485         int i;
 486
 487         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 488
 489         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
 490
 491         /* Disable events and restore eventmask */
 492         ACPI_SERIAL_BEGIN(thinkpad);
 493         acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTS, 0);
 494         acpi_thinkpad_sysctl_set(sc, ACPI_THINKPAD_METHOD_EVENTMASK,
 495             sc->events_initialmask);
 496         ACPI_SERIAL_END(thinkpad);
 497
 498         AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
 499             acpi_thinkpad_notify);
 500
 501         if (sc->sysctl_tree != NULL)
 502                 sysctl_ctx_free(&sc->sysctl_ctx);
 503
 504         sensordev_deinstall(&sc->sensordev);
 505         for (i = 0; i < THINKPAD_NUM_SENSORS; i++)
 506                 sensor_detach(&sc->sensordev, &sc->sensors[i]);
 507         sensor_task_unregister(sc);
 508
 509         if (sc->led_dev != NULL)
 510                 led_destroy(sc->led_dev);
 511
 512         return (0);
 513 }
 514
 515 static int
 516 acpi_thinkpad_resume(device_t dev)
 517 {
 518         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
 519
 520         ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
 521
 522         ACPI_SERIAL_BEGIN(thinkpad);
 523         for (int i = 0; acpi_thinkpad_sysctls[i].name != NULL; i++) {
 524                 int val;
 525
 526                 if ((acpi_thinkpad_sysctls[i].access & CTLFLAG_RD) == 0) {
 527                         continue;
 528                 }
 529
 530                 val = acpi_thinkpad_sysctl_get(sc, i);
 531
 532                 if ((acpi_thinkpad_sysctls[i].access & CTLFLAG_WR) == 0) {
 533                         continue;
 534                 }
 535
 536                 acpi_thinkpad_sysctl_set(sc, i, val);
 537         }
 538         ACPI_SERIAL_END(thinkpad);
 539
 540         return (0);
 541 }
 542
 543 static int
 544 acpi_thinkpad_eventmask_set(struct acpi_thinkpad_softc *sc, int val)
 545 {
 546         int i;
 547         ACPI_OBJECT             arg[2];
 548         ACPI_OBJECT_LIST        args;
 549         ACPI_STATUS             status;
 550
 551         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 552         ACPI_SERIAL_ASSERT(thinkpad);
 553
 554         args.Count = 2;
 555         args.Pointer = arg;
 556         arg[0].Type = ACPI_TYPE_INTEGER;
 557         arg[1].Type = ACPI_TYPE_INTEGER;
 558
 559         for (i = 0; i < 32; ++i) {
 560                 arg[0].Integer.Value = i+1;
 561                 arg[1].Integer.Value = (((1 << i) & val) != 0);
 562                 status = AcpiEvaluateObject(sc->handle,
 563                     THINKPAD_NAME_EVENTS_MASK_SET, &args, NULL);
 564
 565                 if (ACPI_FAILURE(status))
 566                         return (status);
 567         }
 568
 569         return (0);
 570 }
 571
 572 static int
 573 acpi_thinkpad_sysctl(SYSCTL_HANDLER_ARGS)
 574 {
 575         struct acpi_thinkpad_softc      *sc;
 576         int                     arg;
 577         int                     error = 0;
 578         int                     function;
 579         int                     method;
 580
 581         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 582
 583         sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1;
 584         function = oidp->oid_arg2;
 585         method = acpi_thinkpad_sysctls[function].method;
 586
 587         ACPI_SERIAL_BEGIN(thinkpad);
 588         arg = acpi_thinkpad_sysctl_get(sc, method);
 589         error = sysctl_handle_int(oidp, &arg, 0, req);
 590
 591         /* Sanity check */
 592         if (error != 0 || req->newptr == NULL)
 593                 goto out;
 594
 595         /* Update */
 596         error = acpi_thinkpad_sysctl_set(sc, method, arg);
 597
 598 out:
 599         ACPI_SERIAL_END(thinkpad);
 600         return (error);
 601 }
 602
 603 static int
 604 acpi_thinkpad_sysctl_get(struct acpi_thinkpad_softc *sc, int method)
 605 {
 606         UINT64          val_ec;
 607         int             val = 0, key;
 608
 609         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 610         ACPI_SERIAL_ASSERT(thinkpad);
 611
 612         switch (method) {
 613         case ACPI_THINKPAD_METHOD_EVENTS:
 614                 acpi_GetInteger(sc->handle, THINKPAD_NAME_EVENTS_STATUS_GET,
 615                     &val);
 616                 break;
 617
 618         case ACPI_THINKPAD_METHOD_EVENTMASK:
 619                 if (sc->events_mask_supported)
 620                         acpi_GetInteger(sc->handle,
 621                             THINKPAD_NAME_EVENTS_MASK_GET, &val);
 622                 break;
 623
 624         case ACPI_THINKPAD_METHOD_HOTKEY:
 625                 /*
 626                  * Construct the hotkey as a bitmask as illustrated below.
 627                  * Note that whenever a key was pressed, the respecting bit
 628                  * toggles and nothing else changes.
 629                  * +--+--+-+-+-+-+-+-+-+-+-+-+
 630                  * |11|10|9|8|7|6|5|4|3|2|1|0|
 631                  * +--+--+-+-+-+-+-+-+-+-+-+-+
 632                  *   |  | | | | | | | | | | |
 633                  *   |  | | | | | | | | | | +- Home Button
 634                  *   |  | | | | | | | | | +--- Search Button
 635                  *   |  | | | | | | | | +----- Mail Button
 636                  *   |  | | | | | | | +------- Thinkpad Button
 637                  *   |  | | | | | | +--------- Zoom (Fn + Space)
 638                  *   |  | | | | | +----------- WLAN Button
 639                  *   |  | | | | +------------- Video Button
 640                  *   |  | | | +--------------- Hibernate Button
 641                  *   |  | | +----------------- Thinklight Button
 642                  *   |  | +------------------- Screen expand (Fn + F8)
 643                  *   |  +--------------------- Brightness
 644                  *   +------------------------ Volume/Mute
 645                  */
 646                 key = rtcin(THINKPAD_RTC_HOTKEY1);
 647                 val = (THINKPAD_RTC_MASK_HOME | THINKPAD_RTC_MASK_SEARCH |
 648                     THINKPAD_RTC_MASK_MAIL | THINKPAD_RTC_MASK_WLAN) & key;
 649                 key = rtcin(THINKPAD_RTC_HOTKEY2);
 650                 val |= (THINKPAD_RTC_MASK_THINKPAD | THINKPAD_RTC_MASK_VIDEO |
 651                     THINKPAD_RTC_MASK_HIBERNATE) & key;
 652                 val |= (THINKPAD_RTC_MASK_ZOOM & key) >> 1;
 653                 key = rtcin(THINKPAD_RTC_THINKLIGHT);
 654                 val |= (THINKPAD_RTC_MASK_THINKLIGHT & key) << 4;
 655                 key = rtcin(THINKPAD_RTC_SCREENEXPAND);
 656                 val |= (THINKPAD_RTC_MASK_THINKLIGHT & key) << 4;
 657                 key = rtcin(THINKPAD_RTC_BRIGHTNESS);
 658                 val |= (THINKPAD_RTC_MASK_BRIGHTNESS & key) << 5;
 659                 key = rtcin(THINKPAD_RTC_VOLUME);
 660                 val |= (THINKPAD_RTC_MASK_VOLUME & key) << 4;
 661                 break;
 662
 663         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 664                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, &val_ec, 1);
 665                 val = val_ec & THINKPAD_EC_MASK_BRI;
 666                 break;
 667
 668         case ACPI_THINKPAD_METHOD_VOLUME:
 669                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
 670                 val = val_ec & THINKPAD_EC_MASK_VOL;
 671                 break;
 672
 673         case ACPI_THINKPAD_METHOD_MUTE:
 674                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
 675                 val = ((val_ec & THINKPAD_EC_MASK_MUTE) ==
 676                     THINKPAD_EC_MASK_MUTE);
 677                 break;
 678
 679         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 680                 if (sc->light_get_supported)
 681                         acpi_GetInteger(sc->ec_handle, THINKPAD_NAME_KEYLIGHT,
 682                             &val);
 683                 else
 684                         val = sc->light_val;
 685                 break;
 686
 687         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 688                 acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &val);
 689                 sc->wlan_bt_flags = val;
 690                 val = ((val & THINKPAD_NAME_MASK_BT) != 0);
 691                 break;
 692
 693         case ACPI_THINKPAD_METHOD_WLAN:
 694                 acpi_GetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_GET, &val);
 695                 sc->wlan_bt_flags = val;
 696                 val = ((val & THINKPAD_NAME_MASK_WLAN) != 0);
 697                 break;
 698
 699         case ACPI_THINKPAD_METHOD_FANSPEED:
 700                 if (sc->fan_handle) {
 701                         if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle,
 702                             NULL, &val)))
 703                                 val = -1;
 704                 }
 705                 else {
 706                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSPEED,
 707                             &val_ec, 2);
 708                         val = val_ec;
 709                 }
 710                 break;
 711
 712         case ACPI_THINKPAD_METHOD_FANLEVEL:
 713                 /*
 714                  * The THINKPAD_EC_FANSTATUS register works as follows:
 715                  * Bit 0-5 indicate the level at which the fan operates. Only
 716                  *       values between 0 and 7 have an effect. Everything
 717                  *       above 7 is treated the same as level 7
 718                  * Bit 6 overrides the fan speed limit if set to 1
 719                  * Bit 7 indicates at which mode the fan operates:
 720                  *       manual (0) or automatic (1)
 721                  */
 722                 if (!sc->fan_handle) {
 723                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 724                             &val_ec, 1);
 725                         val = val_ec & THINKPAD_EC_MASK_FANLEVEL;
 726                 }
 727                 break;
 728
 729         case ACPI_THINKPAD_METHOD_FANSTATUS:
 730                 if (!sc->fan_handle) {
 731                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 732                             &val_ec, 1);
 733                         val = (val_ec & THINKPAD_EC_MASK_FANSTATUS) ==
 734                             THINKPAD_EC_MASK_FANSTATUS;
 735                 }
 736                 else
 737                         val = -1;
 738                 break;
 739         }
 740
 741         return (val);
 742 }
 743
 744 static int
 745 acpi_thinkpad_sysctl_set(struct acpi_thinkpad_softc *sc, int method, int arg)
 746 {
 747         int                     val;
 748         UINT64                  val_ec;
 749         ACPI_STATUS             status;
 750
 751         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 752         ACPI_SERIAL_ASSERT(thinkpad);
 753
 754         switch (method) {
 755         case ACPI_THINKPAD_METHOD_EVENTS:
 756                 if (arg < 0 || arg > 1)
 757                         return (EINVAL);
 758
 759                 status = acpi_SetInteger(sc->handle,
 760                     THINKPAD_NAME_EVENTS_STATUS_SET, arg);
 761                 if (ACPI_FAILURE(status))
 762                         return (status);
 763                 if (sc->events_mask_supported)
 764                         return acpi_thinkpad_eventmask_set(sc,
 765                             sc->events_availmask);
 766                 break;
 767
 768         case ACPI_THINKPAD_METHOD_EVENTMASK:
 769                 if (sc->events_mask_supported)
 770                         return acpi_thinkpad_eventmask_set(sc, arg);
 771                 break;
 772
 773         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 774                 return acpi_thinkpad_brightness_set(sc, arg);
 775                 break;
 776
 777         case ACPI_THINKPAD_METHOD_VOLUME:
 778                 return acpi_thinkpad_volume_set(sc, arg);
 779                 break;
 780
 781         case ACPI_THINKPAD_METHOD_MUTE:
 782                 return acpi_thinkpad_mute_set(sc, arg);
 783                 break;
 784
 785         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 786                 return acpi_thinkpad_thinklight_set(sc, arg);
 787                 break;
 788
 789         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 790                 return acpi_thinkpad_bluetooth_set(sc, arg);
 791                 break;
 792
 793         case ACPI_THINKPAD_METHOD_FANLEVEL:
 794                 if (arg < 0 || arg > 7)
 795                         return (EINVAL);
 796
 797                 if (!sc->fan_handle) {
 798                         /* Read the current fanstatus */
 799                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 800                             &val_ec, 1);
 801                         val = val_ec & (~THINKPAD_EC_MASK_FANLEVEL);
 802
 803                         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 804                             val | arg, 1);
 805                 }
 806                 break;
 807
 808         case ACPI_THINKPAD_METHOD_FANSTATUS:
 809                 if (arg < 0 || arg > 1)
 810                         return (EINVAL);
 811
 812                 if (!sc->fan_handle) {
 813                         /* Read the current fanstatus */
 814                         ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 815                             &val_ec, 1);
 816
 817                         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_FANSTATUS,
 818                             (arg == 1) ? (val_ec | THINKPAD_EC_MASK_FANSTATUS) :
 819                             (val_ec & (~THINKPAD_EC_MASK_FANSTATUS)), 1);
 820                 }
 821                 break;
 822         }
 823
 824         return (0);
 825 }
 826
 827 static int
 828 acpi_thinkpad_sysctl_init(struct acpi_thinkpad_softc *sc, int method)
 829 {
 830         int                     dummy;
 831         ACPI_OBJECT_TYPE        cmos_t;
 832         ACPI_HANDLE             ledb_handle;
 833
 834         switch (method) {
 835         case ACPI_THINKPAD_METHOD_EVENTS:
 836                 /* Events are disabled by default */
 837                 return (TRUE);
 838
 839         case ACPI_THINKPAD_METHOD_EVENTMASK:
 840                 return (sc->events_mask_supported);
 841
 842         case ACPI_THINKPAD_METHOD_HOTKEY:
 843         case ACPI_THINKPAD_METHOD_BRIGHTNESS:
 844         case ACPI_THINKPAD_METHOD_VOLUME:
 845         case ACPI_THINKPAD_METHOD_MUTE:
 846                 /* EC is required here, which was already checked before */
 847                 return (TRUE);
 848
 849         case ACPI_THINKPAD_METHOD_THINKLIGHT:
 850                 sc->cmos_handle = NULL;
 851                 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(
 852                     sc->ec_handle, THINKPAD_NAME_KEYLIGHT, &sc->light_val));
 853
 854                 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS",
 855                     &sc->light_handle)) ||
 856                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS",
 857                     &sc->light_handle)) ||
 858                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS",
 859                     &sc->light_handle))) &&
 860                     ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
 861                     cmos_t == ACPI_TYPE_METHOD) {
 862                         sc->light_cmd_on = 0x0c;
 863                         sc->light_cmd_off = 0x0d;
 864                         sc->cmos_handle = sc->light_handle;
 865                 }
 866                 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT",
 867                     &sc->light_handle))) {
 868                         sc->light_cmd_on = 1;
 869                         sc->light_cmd_off = 0;
 870                 }
 871                 else
 872                         sc->light_handle = NULL;
 873
 874                 sc->light_set_supported = (sc->light_handle &&
 875                     ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB",
 876                     &ledb_handle)));
 877
 878                 if (sc->light_get_supported)
 879                         return (TRUE);
 880
 881                 if (sc->light_set_supported) {
 882                         sc->light_val = 0;
 883                         return (TRUE);
 884                 }
 885
 886                 return (FALSE);
 887
 888         case ACPI_THINKPAD_METHOD_BLUETOOTH:
 889         case ACPI_THINKPAD_METHOD_WLAN:
 890                 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle,
 891                     THINKPAD_NAME_WLAN_BT_GET, &dummy)))
 892                         return (TRUE);
 893                 return (FALSE);
 894
 895         case ACPI_THINKPAD_METHOD_FANSPEED:
 896                 /*
 897                  * Some models report the fan speed in levels from 0-7
 898                  * Newer models report it contiguously
 899                  */
 900                 sc->fan_levels = (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN",
 901                     &sc->fan_handle)) ||
 902                     ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD",
 903                     &sc->fan_handle)));
 904                 return (TRUE);
 905
 906         case ACPI_THINKPAD_METHOD_FANLEVEL:
 907         case ACPI_THINKPAD_METHOD_FANSTATUS:
 908                 /*
 909                  * Fan status is only supported on those models,
 910                  * which report fan RPM contiguously, not in levels
 911                  */
 912                 if (sc->fan_levels)
 913                         return (FALSE);
 914                 return (TRUE);
 915
 916         case ACPI_THINKPAD_METHOD_THERMAL:
 917                 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle,
 918                     THINKPAD_NAME_THERMAL_GET, &dummy))) {
 919                         sc->thermal_updt_supported =
 920                             ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle,
 921                             THINKPAD_NAME_THERMAL_UPDT, &dummy));
 922                         return (TRUE);
 923                 }
 924                 return (FALSE);
 925
 926         case ACPI_THINKPAD_METHOD_HANDLEREVENTS:
 927                 return (TRUE);
 928         }
 929         return (FALSE);
 930 }
 931
 932 static int
 933 acpi_thinkpad_handlerevents_sysctl(SYSCTL_HANDLER_ARGS)
 934 {
 935         struct acpi_thinkpad_softc      *sc;
 936         int                     error = 0;
 937         struct sbuf             sb;
 938         char                    *cp, *ep;
 939         int                     l, val;
 940         unsigned int            handler_events;
 941
 942         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
 943
 944         sc = (struct acpi_thinkpad_softc *)oidp->oid_arg1;
 945
 946         if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL)
 947                 return (ENOMEM);
 948
 949         ACPI_SERIAL_BEGIN(thinkpad);
 950
 951         /* Get old values if this is a get request. */
 952         if (req->newptr == NULL) {
 953                 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++)
 954                         if (sc->handler_events & (1 << i))
 955                                 sbuf_printf(&sb, "0x%02x ", i + 1);
 956                 if (sbuf_len(&sb) == 0)
 957                         sbuf_printf(&sb, "NONE");
 958         }
 959
 960         sbuf_trim(&sb);
 961         sbuf_finish(&sb);
 962
 963         /* Copy out the old values to the user. */
 964         error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb));
 965         sbuf_delete(&sb);
 966
 967         if (error != 0 || req->newptr == NULL)
 968                 goto out;
 969
 970         /* If the user is setting a string, parse it. */
 971         handler_events = 0;
 972         cp = (char *)req->newptr;
 973         while (*cp) {
 974                 if (isspace(*cp)) {
 975                         cp++;
 976                         continue;
 977                 }
 978
 979                 ep = cp;
 980
 981                 while (*ep && !isspace(*ep))
 982                         ep++;
 983
 984                 l = ep - cp;
 985                 if (l == 0)
 986                         break;
 987
 988                 if (strncmp(cp, "NONE", 4) == 0) {
 989                         cp = ep;
 990                         continue;
 991                 }
 992
 993                 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x'))
 994                         val = strtoul(cp, &ep, 16);
 995                 else
 996                         val = strtoul(cp, &ep, 10);
 997
 998                 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) {
 999                         cp[l] = '\0';
1000                         device_printf(sc->dev, "invalid event code: %s\n", cp);
1001                         error = EINVAL;
1002                         goto out;
1003                 }
1004
1005                 handler_events |= 1 << (val - 1);
1006
1007                 cp = ep;
1008         }
1009
1010         sc->handler_events = handler_events;
1011 out:
1012         ACPI_SERIAL_END(thinkpad);
1013         return (error);
1014 }
1015
1016 static int
1017 acpi_thinkpad_brightness_set(struct acpi_thinkpad_softc *sc, int arg)
1018 {
1019         int                     val, step;
1020         UINT64                  val_ec;
1021         ACPI_OBJECT             Arg;
1022         ACPI_OBJECT_LIST        Args;
1023         ACPI_STATUS             status;
1024
1025         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1026         ACPI_SERIAL_ASSERT(thinkpad);
1027
1028         if (arg < 0 || arg > 7)
1029                 return (EINVAL);
1030
1031         /* Read the current brightness */
1032         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, &val_ec, 1);
1033         if (ACPI_FAILURE(status))
1034                 return (status);
1035
1036         if (sc->cmos_handle) {
1037                 val = val_ec & THINKPAD_EC_MASK_BRI;
1038
1039                 Args.Count = 1;
1040                 Args.Pointer = &Arg;
1041                 Arg.Type = ACPI_TYPE_INTEGER;
1042                 Arg.Integer.Value = (arg > val) ? THINKPAD_CMOS_BRIGHTNESS_UP :
1043                                                   THINKPAD_CMOS_BRIGHTNESS_DOWN;
1044
1045                 step = (arg > val) ? 1 : -1;
1046                 for (int i = val; i != arg; i += step) {
1047                         status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1048                                                     &Args, NULL);
1049                         if (ACPI_FAILURE(status)) {
1050                                 /* Record the last value */
1051                                 if (i != val) {
1052                                         ACPI_EC_WRITE(sc->ec_dev,
1053                                             THINKPAD_EC_BRIGHTNESS, i - step, 1);
1054                                 }
1055                                 return (status);
1056                         }
1057                 }
1058         }
1059
1060         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_BRIGHTNESS, arg, 1);
1061 }
1062
1063 static int
1064 acpi_thinkpad_bluetooth_set(struct acpi_thinkpad_softc *sc, int arg)
1065 {
1066         int                     val;
1067
1068         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1069         ACPI_SERIAL_ASSERT(thinkpad);
1070
1071         if (arg < 0 || arg > 1)
1072                 return (EINVAL);
1073
1074         val = (arg == 1) ? sc->wlan_bt_flags | THINKPAD_NAME_MASK_BT :
1075                            sc->wlan_bt_flags & (~THINKPAD_NAME_MASK_BT);
1076         return acpi_SetInteger(sc->handle, THINKPAD_NAME_WLAN_BT_SET, val);
1077 }
1078
1079 static int
1080 acpi_thinkpad_thinklight_set(struct acpi_thinkpad_softc *sc, int arg)
1081 {
1082         ACPI_OBJECT             Arg;
1083         ACPI_OBJECT_LIST        Args;
1084         ACPI_STATUS             status;
1085
1086         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1087         ACPI_SERIAL_ASSERT(thinkpad);
1088
1089         if (arg < 0 || arg > 1)
1090                 return (EINVAL);
1091
1092         if (sc->light_set_supported) {
1093                 Args.Count = 1;
1094                 Args.Pointer = &Arg;
1095                 Arg.Type = ACPI_TYPE_INTEGER;
1096                 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
1097
1098                 status = AcpiEvaluateObject(sc->light_handle, NULL,
1099                                             &Args, NULL);
1100                 if (ACPI_SUCCESS(status))
1101                         sc->light_val = arg;
1102                 return (status);
1103         }
1104
1105         return (0);
1106 }
1107
1108 static int
1109 acpi_thinkpad_volume_set(struct acpi_thinkpad_softc *sc, int arg)
1110 {
1111         int                     val, step;
1112         UINT64                  val_ec;
1113         ACPI_OBJECT             Arg;
1114         ACPI_OBJECT_LIST        Args;
1115         ACPI_STATUS             status;
1116
1117         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1118         ACPI_SERIAL_ASSERT(thinkpad);
1119
1120         if (arg < 0 || arg > 14)
1121                 return (EINVAL);
1122
1123         /* Read the current volume */
1124         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1125         if (ACPI_FAILURE(status))
1126                 return (status);
1127
1128         if (sc->cmos_handle) {
1129                 val = val_ec & THINKPAD_EC_MASK_VOL;
1130
1131                 Args.Count = 1;
1132                 Args.Pointer = &Arg;
1133                 Arg.Type = ACPI_TYPE_INTEGER;
1134                 Arg.Integer.Value = (arg > val) ? THINKPAD_CMOS_VOLUME_UP :
1135                                                   THINKPAD_CMOS_VOLUME_DOWN;
1136
1137                 step = (arg > val) ? 1 : -1;
1138                 for (int i = val; i != arg; i += step) {
1139                         status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1140                                                     &Args, NULL);
1141                         if (ACPI_FAILURE(status)) {
1142                                 /* Record the last value */
1143                                 if (i != val) {
1144                                         val_ec = i - step +
1145                                                  (val_ec & (~THINKPAD_EC_MASK_VOL));
1146                                         ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME,
1147                                                       val_ec, 1);
1148                                 }
1149                                 return (status);
1150                         }
1151                 }
1152         }
1153
1154         val_ec = arg + (val_ec & (~THINKPAD_EC_MASK_VOL));
1155         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, val_ec, 1);
1156 }
1157
1158 static int
1159 acpi_thinkpad_mute_set(struct acpi_thinkpad_softc *sc, int arg)
1160 {
1161         UINT64                  val_ec;
1162         ACPI_OBJECT             Arg;
1163         ACPI_OBJECT_LIST        Args;
1164         ACPI_STATUS             status;
1165
1166         ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1167         ACPI_SERIAL_ASSERT(thinkpad);
1168
1169         if (arg < 0 || arg > 1)
1170                 return (EINVAL);
1171
1172         status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1173         if (ACPI_FAILURE(status))
1174                 return (status);
1175
1176         if (sc->cmos_handle) {
1177                 Args.Count = 1;
1178                 Args.Pointer = &Arg;
1179                 Arg.Type = ACPI_TYPE_INTEGER;
1180                 Arg.Integer.Value = THINKPAD_CMOS_VOLUME_MUTE;
1181
1182                 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
1183                 if (ACPI_FAILURE(status))
1184                         return (status);
1185         }
1186
1187         val_ec = (arg == 1) ? val_ec | THINKPAD_EC_MASK_MUTE :
1188                               val_ec & (~THINKPAD_EC_MASK_MUTE);
1189         return ACPI_EC_WRITE(sc->ec_dev, THINKPAD_EC_VOLUME, val_ec, 1);
1190 }
1191
1192 static void
1193 acpi_thinkpad_eventhandler(struct acpi_thinkpad_softc *sc, int arg)
1194 {
1195         int                     val;
1196         UINT64                  val_ec;
1197         ACPI_STATUS             status;
1198
1199         ACPI_SERIAL_BEGIN(thinkpad);
1200         switch (arg) {
1201 #if 0 /* XXX */
1202         case THINKPAD_EVENT_SUSPEND_TO_RAM:
1203                 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
1204                 break;
1205 #endif
1206
1207         case THINKPAD_EVENT_BLUETOOTH:
1208                 acpi_thinkpad_bluetooth_set(sc, (sc->wlan_bt_flags == 0));
1209                 break;
1210
1211         case THINKPAD_EVENT_BRIGHTNESS_UP:
1212         case THINKPAD_EVENT_BRIGHTNESS_DOWN:
1213                 /* Read the current brightness */
1214                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_BRIGHTNESS,
1215                                       &val_ec, 1);
1216                 if (ACPI_FAILURE(status))
1217                         goto done;
1218
1219                 val = val_ec & THINKPAD_EC_MASK_BRI;
1220                 val = (arg == THINKPAD_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1;
1221                 acpi_thinkpad_brightness_set(sc, val);
1222                 break;
1223
1224         case THINKPAD_EVENT_THINKLIGHT:
1225                 acpi_thinkpad_thinklight_set(sc, (sc->light_val == 0));
1226                 break;
1227
1228         case THINKPAD_EVENT_VOLUME_UP:
1229         case THINKPAD_EVENT_VOLUME_DOWN:
1230                 /* Read the current volume */
1231                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1232                 if (ACPI_FAILURE(status))
1233                         goto done;
1234
1235                 val = val_ec & THINKPAD_EC_MASK_VOL;
1236                 val = (arg == THINKPAD_EVENT_VOLUME_UP) ? val + 1 : val - 1;
1237                 acpi_thinkpad_volume_set(sc, val);
1238                 break;
1239
1240         case THINKPAD_EVENT_MUTE:
1241                 /* Read the current value */
1242                 status = ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_VOLUME, &val_ec, 1);
1243                 if (ACPI_FAILURE(status))
1244                         goto done;
1245
1246                 val = ((val_ec & THINKPAD_EC_MASK_MUTE) == THINKPAD_EC_MASK_MUTE);
1247                 acpi_thinkpad_mute_set(sc, (val == 0));
1248                 break;
1249
1250         default:
1251                 break;
1252         }
1253 done:
1254         ACPI_SERIAL_END(thinkpad);
1255 }
1256
1257 static void
1258 acpi_thinkpad_notify(ACPI_HANDLE h, UINT32 notify, void *context)
1259 {
1260         int             event, arg, type;
1261         device_t        dev = context;
1262         struct acpi_thinkpad_softc *sc = device_get_softc(dev);
1263
1264         ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
1265
1266         if (notify != 0x80)
1267                 device_printf(dev, "Unknown notify\n");
1268
1269         for (;;) {
1270                 acpi_GetInteger(acpi_get_handle(dev), THINKPAD_NAME_EVENTS_GET,
1271                     &event);
1272
1273                 if (event == 0)
1274                         break;
1275
1276                 type = (event >> 12) & 0xf;
1277                 arg = event & 0xfff;
1278                 switch (type) {
1279                 case 1:
1280                         if (!(sc->events_availmask & (1 << (arg - 1)))) {
1281                                 device_printf(dev, "Unknown key %d\n", arg);
1282                                 break;
1283                         }
1284
1285                         /* Execute event handler */
1286                         if (sc->handler_events & (1 << (arg - 1)))
1287                                 acpi_thinkpad_eventhandler(sc, (arg & 0xff));
1288
1289                         /* Notify devd(8) */
1290                         acpi_UserNotify("THINKPAD", h, (arg & 0xff));
1291                         break;
1292                 default:
1293                         break;
1294                 }
1295         }
1296 }
1297
1298 static void
1299 acpi_thinkpad_refresh(void *arg)
1300 {
1301         struct acpi_thinkpad_softc *sc = (struct acpi_thinkpad_softc *)arg;
1302         int i, data;
1303
1304         for (i = 0; i < THINKPAD_TEMP_SENSORS; i++) {
1305                 char temp_cmd[] = "TMP0";
1306
1307                 temp_cmd[3] = '0' + i;
1308                 /*
1309                  * The TMPx methods seem to return +/- 128 or 0
1310                  * when the respecting sensor is not available
1311                  */
1312                 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
1313                     &data)) || ABS(data) == 128 || data == 0) {
1314                         sc->sensors[i].flags |= SENSOR_FINVALID;
1315                         continue;
1316                 }
1317                 if (sc->thermal_updt_supported)
1318                         /* Temperature is reported in tenth of Kelvin */
1319                         sc->sensors[i].value = data * 100000 - 50000;
1320                 else
1321                         sc->sensors[i].value = data * 1000000 + 273150000;
1322                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1323         }
1324
1325         if (sc->fan_handle) {
1326                 if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle,
1327                     NULL, &data)))
1328                         sc->sensors[i].flags |= SENSOR_FINVALID;
1329                 sc->sensors[i].value = data;
1330                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1331         } else {
1332                 UINT64 speed;
1333
1334                 ACPI_EC_READ(sc->ec_dev, THINKPAD_EC_FANSPEED, &speed, 2);
1335                 sc->sensors[i].value = speed;
1336                 sc->sensors[i].flags &= ~SENSOR_FINVALID;
1337         }
1338 }