2 * Copyright (c) 2004 Takanori Watanabe
3 * Copyright (c) 2005 Markus Brueffer <markus@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
27 * $FreeBSD: src/sys/dev/acpi_support/acpi_ibm.c,v 1.19 2009/06/05 18:44:36 jkim
31 * Driver for extra ACPI-controlled gadgets found on IBM ThinkPad laptops.
32 * Inspired by the ibm-acpi and tpb projects which implement these features
35 * acpi-ibm: <http://ibm-acpi.sourceforge.net/>
36 * tpb: <http://www.nongnu.org/tpb/>
40 #include <sys/param.h>
41 #include <sys/kernel.h>
43 #include <sys/sensors.h>
44 #include <machine/cpufunc.h>
45 #include <machine/clock.h>
51 #include <sys/module.h>
52 #include <dev/acpica5/acpivar.h>
53 #if defined(__FreeBSD__)
54 #include <dev/led/led.h>
56 #include <sys/sysctl.h>
57 #include <bus/isa/rtc.h>
59 #define _COMPONENT ACPI_OEM
60 ACPI_MODULE_NAME("IBM")
62 /* Internal methods */
63 #define ACPI_IBM_METHOD_EVENTS 1
64 #define ACPI_IBM_METHOD_EVENTMASK 2
65 #define ACPI_IBM_METHOD_HOTKEY 3
66 #define ACPI_IBM_METHOD_BRIGHTNESS 4
67 #define ACPI_IBM_METHOD_VOLUME 5
68 #define ACPI_IBM_METHOD_MUTE 6
69 #define ACPI_IBM_METHOD_THINKLIGHT 7
70 #define ACPI_IBM_METHOD_BLUETOOTH 8
71 #define ACPI_IBM_METHOD_WLAN 9
72 #define ACPI_IBM_METHOD_FANSPEED 10
73 #define ACPI_IBM_METHOD_FANLEVEL 11
74 #define ACPI_IBM_METHOD_FANSTATUS 12
75 #define ACPI_IBM_METHOD_THERMAL 13
78 #define IBM_RTC_HOTKEY1 0x64
79 #define IBM_RTC_MASK_HOME (1 << 0)
80 #define IBM_RTC_MASK_SEARCH (1 << 1)
81 #define IBM_RTC_MASK_MAIL (1 << 2)
82 #define IBM_RTC_MASK_WLAN (1 << 5)
83 #define IBM_RTC_HOTKEY2 0x65
84 #define IBM_RTC_MASK_THINKPAD (1 << 3)
85 #define IBM_RTC_MASK_ZOOM (1 << 5)
86 #define IBM_RTC_MASK_VIDEO (1 << 6)
87 #define IBM_RTC_MASK_HIBERNATE (1 << 7)
88 #define IBM_RTC_THINKLIGHT 0x66
89 #define IBM_RTC_MASK_THINKLIGHT (1 << 4)
90 #define IBM_RTC_SCREENEXPAND 0x67
91 #define IBM_RTC_MASK_SCREENEXPAND (1 << 5)
92 #define IBM_RTC_BRIGHTNESS 0x6c
93 #define IBM_RTC_MASK_BRIGHTNESS (1 << 5)
94 #define IBM_RTC_VOLUME 0x6e
95 #define IBM_RTC_MASK_VOLUME (1 << 7)
97 /* Embedded Controller registers */
98 #define IBM_EC_BRIGHTNESS 0x31
99 #define IBM_EC_MASK_BRI 0x7
100 #define IBM_EC_VOLUME 0x30
101 #define IBM_EC_MASK_VOL 0xf
102 #define IBM_EC_MASK_MUTE (1 << 6)
103 #define IBM_EC_FANSTATUS 0x2F
104 #define IBM_EC_MASK_FANLEVEL 0x3f
105 #define IBM_EC_MASK_FANDISENGAGED (1 << 6)
106 #define IBM_EC_MASK_FANSTATUS (1 << 7)
107 #define IBM_EC_FANSPEED 0x84
110 #define IBM_CMOS_VOLUME_DOWN 0
111 #define IBM_CMOS_VOLUME_UP 1
112 #define IBM_CMOS_VOLUME_MUTE 2
113 #define IBM_CMOS_BRIGHTNESS_UP 4
114 #define IBM_CMOS_BRIGHTNESS_DOWN 5
117 #define IBM_NAME_KEYLIGHT "KBLT"
118 #define IBM_NAME_WLAN_BT_GET "GBDC"
119 #define IBM_NAME_WLAN_BT_SET "SBDC"
120 #define IBM_NAME_MASK_BT (1 << 1)
121 #define IBM_NAME_MASK_WLAN (1 << 2)
122 #define IBM_NAME_THERMAL_GET "TMP7"
123 #define IBM_NAME_THERMAL_UPDT "UPDT"
125 #define IBM_NAME_EVENTS_STATUS_GET "DHKC"
126 #define IBM_NAME_EVENTS_MASK_GET "DHKN"
127 #define IBM_NAME_EVENTS_STATUS_SET "MHKC"
128 #define IBM_NAME_EVENTS_MASK_SET "MHKM"
129 #define IBM_NAME_EVENTS_GET "MHKP"
130 #define IBM_NAME_EVENTS_AVAILMASK "MHKA"
132 #define IBM_NUM_SENSORS 9
133 #define IBM_THERMAL_SENSORS 8
135 #define ABS(x) (((x) < 0)? -(x) : (x))
137 struct acpi_ibm_softc {
141 /* Embedded controller */
143 ACPI_HANDLE ec_handle;
146 ACPI_HANDLE cmos_handle;
149 ACPI_HANDLE fan_handle;
152 /* Keylight commands and states */
153 ACPI_HANDLE light_handle;
157 int light_get_supported;
158 int light_set_supported;
160 /* led(4) interface */
161 struct cdev *led_dev;
166 int thermal_updt_supported;
168 unsigned int events_availmask;
169 unsigned int events_initialmask;
170 int events_mask_supported;
173 /* sensors(9) related */
174 struct ksensordev sensordev;
175 struct ksensor sensors[IBM_NUM_SENSORS];
177 struct sysctl_ctx_list sysctl_ctx;
178 struct sysctl_oid *sysctl_tree;
186 } acpi_ibm_sysctls[] = {
189 .method = ACPI_IBM_METHOD_EVENTS,
190 .description = "ACPI events enable",
191 .access = CTLTYPE_INT | CTLFLAG_RW
195 .method = ACPI_IBM_METHOD_EVENTMASK,
196 .description = "ACPI eventmask",
197 .access = CTLTYPE_INT | CTLFLAG_RW
201 .method = ACPI_IBM_METHOD_HOTKEY,
202 .description = "Key Status",
203 .access = CTLTYPE_INT | CTLFLAG_RD
206 .name = "lcd_brightness",
207 .method = ACPI_IBM_METHOD_BRIGHTNESS,
208 .description = "LCD Brightness",
209 .access = CTLTYPE_INT | CTLFLAG_RW
213 .method = ACPI_IBM_METHOD_VOLUME,
214 .description = "Volume",
215 .access = CTLTYPE_INT | CTLFLAG_RW
219 .method = ACPI_IBM_METHOD_MUTE,
220 .description = "Mute",
221 .access = CTLTYPE_INT | CTLFLAG_RW
224 .name = "thinklight",
225 .method = ACPI_IBM_METHOD_THINKLIGHT,
226 .description = "Thinklight enable",
227 .access = CTLTYPE_INT | CTLFLAG_RW
231 .method = ACPI_IBM_METHOD_BLUETOOTH,
232 .description = "Bluetooth enable",
233 .access = CTLTYPE_INT | CTLFLAG_RW
237 .method = ACPI_IBM_METHOD_WLAN,
238 .description = "WLAN enable",
239 .access = CTLTYPE_INT | CTLFLAG_RD
243 .method = ACPI_IBM_METHOD_FANSPEED,
244 .description = "Fan speed",
245 .access = CTLTYPE_INT | CTLFLAG_RD
249 .method = ACPI_IBM_METHOD_FANLEVEL,
250 .description = "Fan level",
251 .access = CTLTYPE_INT | CTLFLAG_RW
255 .method = ACPI_IBM_METHOD_FANSTATUS,
256 .description = "Fan enable",
257 .access = CTLTYPE_INT | CTLFLAG_RW
263 ACPI_SERIAL_DECL(ibm, "ACPI IBM extras");
265 static int acpi_ibm_probe(device_t dev);
266 static int acpi_ibm_attach(device_t dev);
267 static int acpi_ibm_detach(device_t dev);
269 #if defined(__FreeBSD__)
270 static void ibm_led(void *softc, int onoff);
271 static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused);
274 static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS);
275 static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method);
276 static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method);
277 static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val);
279 static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val);
280 static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context);
282 static void acpi_ibm_refresh(void *);
284 static device_method_t acpi_ibm_methods[] = {
285 /* Device interface */
286 DEVMETHOD(device_probe, acpi_ibm_probe),
287 DEVMETHOD(device_attach, acpi_ibm_attach),
288 DEVMETHOD(device_detach, acpi_ibm_detach),
293 static driver_t acpi_ibm_driver = {
296 sizeof(struct acpi_ibm_softc),
299 static devclass_t acpi_ibm_devclass;
301 DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass,
303 MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1);
304 static char *ibm_ids[] = {"IBM0057", "IBM0068", NULL};
306 #if defined(__FreeBSD__)
308 ibm_led(void *softc, int onoff)
310 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc;
312 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
318 sc->led_state = onoff;
320 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc);
324 ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused)
326 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
328 ACPI_SERIAL_BEGIN(ibm);
329 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state);
330 ACPI_SERIAL_END(ibm);
337 acpi_ibm_probe(device_t dev)
339 if (acpi_disabled("ibm") ||
340 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL ||
341 device_get_unit(dev) != 0)
344 device_set_desc(dev, "IBM ThinkPad ACPI Extras");
350 acpi_ibm_attach(device_t dev)
352 struct acpi_ibm_softc *sc;
353 devclass_t ec_devclass;
354 struct acpi_softc *acpi_sc;
357 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
359 sc = device_get_softc(dev);
361 sc->handle = acpi_get_handle(dev);
363 /* Look for the first embedded controller */
364 if (!(ec_devclass = devclass_find ("acpi_ec"))) {
366 device_printf(dev, "Couldn't find acpi_ec devclass\n");
369 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
371 device_printf(dev, "Couldn't find acpi_ec device\n");
374 sc->ec_handle = acpi_get_handle(sc->ec_dev);
375 acpi_sc = acpi_device_get_parent_softc(dev);
377 ACPI_SERIAL_BEGIN(ibm);
379 /* Get the sysctl tree */
380 sysctl_ctx_init(&sc->sysctl_ctx);
381 sc->sysctl_tree = SYSCTL_ADD_NODE(&sc->sysctl_ctx,
382 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
383 "thinkpad", CTLFLAG_RD, 0, "");
385 /* Look for event mask and hook up the nodes */
386 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
387 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
389 if (sc->events_mask_supported) {
390 SYSCTL_ADD_INT(&sc->sysctl_ctx,
391 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
392 "initialmask", CTLFLAG_RD,
393 &sc->events_initialmask, 0, "Initial eventmask");
395 /* The availmask is the bitmask of supported events */
396 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
397 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
398 sc->events_availmask = 0xffffffff;
400 SYSCTL_ADD_INT(&sc->sysctl_ctx,
401 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
402 "availmask", CTLFLAG_RD,
403 &sc->events_availmask, 0, "Mask of supported events");
406 /* Hook up proc nodes */
407 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
408 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method))
411 SYSCTL_ADD_PROC(&sc->sysctl_ctx,
412 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
413 acpi_ibm_sysctls[i].name, acpi_ibm_sysctls[i].access,
414 sc, i, acpi_ibm_sysctl, "I",
415 acpi_ibm_sysctls[i].description);
417 ACPI_SERIAL_END(ibm);
419 /* Handle notifies */
420 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
421 acpi_ibm_notify, dev);
423 /* Attach sensors(9). */
424 if (sensor_task_register(sc, acpi_ibm_refresh, 5)) {
425 device_printf(sc->dev, "unable to register update task\n");
428 strlcpy(sc->sensordev.xname, device_get_nameunit(sc->dev),
429 sizeof(sc->sensordev.xname));
431 for (i = 0; i < IBM_THERMAL_SENSORS; i++) {
432 sc->sensors[i].type = SENSOR_TEMP;
433 sensor_attach(&sc->sensordev, &sc->sensors[i]);
436 sc->sensors[i].type = SENSOR_FANRPM;
437 sensor_attach(&sc->sensordev, &sc->sensors[i]);
439 sensordev_install(&sc->sensordev);
441 #if defined(__FreeBSD__)
442 /* Hook up light to led(4) */
443 if (sc->light_set_supported)
444 sc->led_dev = led_create_state(ibm_led, sc, "thinklight", sc->light_val);
451 acpi_ibm_detach(device_t dev)
454 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
456 struct acpi_ibm_softc *sc = device_get_softc(dev);
458 /* Disable events and restore eventmask */
459 ACPI_SERIAL_BEGIN(ibm);
460 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0);
461 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask);
462 ACPI_SERIAL_END(ibm);
464 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify);
466 sensordev_deinstall(&sc->sensordev);
467 for (i = 0; i < IBM_THERMAL_SENSORS; i++)
468 sensor_detach(&sc->sensordev, &sc->sensors[i]);
469 sensor_task_unregister(sc);
471 #if defined(__FreeBSD__)
472 if (sc->led_dev != NULL)
473 led_destroy(sc->led_dev);
480 acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val)
483 ACPI_OBJECT_LIST args;
486 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
487 ACPI_SERIAL_ASSERT(ibm);
491 arg[0].Type = ACPI_TYPE_INTEGER;
492 arg[1].Type = ACPI_TYPE_INTEGER;
494 for (int i = 0; i < 32; ++i) {
495 arg[0].Integer.Value = i+1;
496 arg[1].Integer.Value = (((1 << i) & val) != 0);
497 status = AcpiEvaluateObject(sc->handle,
498 IBM_NAME_EVENTS_MASK_SET, &args, NULL);
500 if (ACPI_FAILURE(status))
508 acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS)
510 struct acpi_ibm_softc *sc;
516 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
518 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
519 function = oidp->oid_arg2;
520 method = acpi_ibm_sysctls[function].method;
522 ACPI_SERIAL_BEGIN(ibm);
523 arg = acpi_ibm_sysctl_get(sc, method);
524 error = sysctl_handle_int(oidp, &arg, 0, req);
527 if (error != 0 || req->newptr == NULL)
531 error = acpi_ibm_sysctl_set(sc, method, arg);
534 ACPI_SERIAL_END(ibm);
539 acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method)
544 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
545 ACPI_SERIAL_ASSERT(ibm);
548 case ACPI_IBM_METHOD_EVENTS:
549 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val);
552 case ACPI_IBM_METHOD_EVENTMASK:
553 if (sc->events_mask_supported)
554 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val);
557 case ACPI_IBM_METHOD_HOTKEY:
559 * Construct the hotkey as a bitmask as illustrated below.
560 * Note that whenever a key was pressed, the respecting bit
561 * toggles and nothing else changes.
562 * +--+--+-+-+-+-+-+-+-+-+-+-+
563 * |11|10|9|8|7|6|5|4|3|2|1|0|
564 * +--+--+-+-+-+-+-+-+-+-+-+-+
565 * | | | | | | | | | | | |
566 * | | | | | | | | | | | +- Home Button
567 * | | | | | | | | | | +--- Search Button
568 * | | | | | | | | | +----- Mail Button
569 * | | | | | | | | +------- Thinkpad Button
570 * | | | | | | | +--------- Zoom (Fn + Space)
571 * | | | | | | +----------- WLAN Button
572 * | | | | | +------------- Video Button
573 * | | | | +--------------- Hibernate Button
574 * | | | +----------------- Thinklight Button
575 * | | +------------------- Screen expand (Fn + F8)
576 * | +--------------------- Brightness
577 * +------------------------ Volume/Mute
579 key = rtcin(IBM_RTC_HOTKEY1);
580 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key;
581 key = rtcin(IBM_RTC_HOTKEY2);
582 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key;
583 val |= (IBM_RTC_MASK_ZOOM & key) >> 1;
584 key = rtcin(IBM_RTC_THINKLIGHT);
585 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
586 key = rtcin(IBM_RTC_SCREENEXPAND);
587 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
588 key = rtcin(IBM_RTC_BRIGHTNESS);
589 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5;
590 key = rtcin(IBM_RTC_VOLUME);
591 val |= (IBM_RTC_MASK_VOLUME & key) << 4;
594 case ACPI_IBM_METHOD_BRIGHTNESS:
595 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
596 val = val_ec & IBM_EC_MASK_BRI;
599 case ACPI_IBM_METHOD_VOLUME:
600 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
601 val = val_ec & IBM_EC_MASK_VOL;
604 case ACPI_IBM_METHOD_MUTE:
605 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
606 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
609 case ACPI_IBM_METHOD_THINKLIGHT:
610 if (sc->light_get_supported)
611 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val);
616 case ACPI_IBM_METHOD_BLUETOOTH:
617 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
618 sc->wlan_bt_flags = val;
619 val = ((val & IBM_NAME_MASK_BT) != 0);
622 case ACPI_IBM_METHOD_WLAN:
623 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
624 sc->wlan_bt_flags = val;
625 val = ((val & IBM_NAME_MASK_WLAN) != 0);
628 case ACPI_IBM_METHOD_FANSPEED:
629 if (sc->fan_handle) {
630 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val)))
634 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2);
639 case ACPI_IBM_METHOD_FANLEVEL:
641 * The IBM_EC_FANSTATUS register works as follows:
642 * Bit 0-5 indicate the level at which the fan operates. Only
643 * values between 0 and 7 have an effect. Everything
644 * above 7 is treated the same as level 7
645 * Bit 6 overrides the fan speed limit if set to 1
646 * Bit 7 indicates at which mode the fan operates:
647 * manual (0) or automatic (1)
649 if (!sc->fan_handle) {
650 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
651 val = val_ec & IBM_EC_MASK_FANLEVEL;
655 case ACPI_IBM_METHOD_FANSTATUS:
656 if (!sc->fan_handle) {
657 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
658 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS;
669 acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg)
674 ACPI_OBJECT_LIST Args;
677 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
678 ACPI_SERIAL_ASSERT(ibm);
681 case ACPI_IBM_METHOD_EVENTS:
682 if (arg < 0 || arg > 1)
685 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg);
686 if (ACPI_FAILURE(status))
688 if (sc->events_mask_supported)
689 return acpi_ibm_eventmask_set(sc, sc->events_availmask);
692 case ACPI_IBM_METHOD_EVENTMASK:
693 if (sc->events_mask_supported)
694 return acpi_ibm_eventmask_set(sc, arg);
697 case ACPI_IBM_METHOD_BRIGHTNESS:
698 if (arg < 0 || arg > 7)
701 if (sc->cmos_handle) {
702 /* Read the current brightness */
703 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
704 if (ACPI_FAILURE(status))
706 val = val_ec & IBM_EC_MASK_BRI;
710 Arg.Type = ACPI_TYPE_INTEGER;
711 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : IBM_CMOS_BRIGHTNESS_DOWN;
713 step = (arg > val) ? 1 : -1;
714 for (int i = val; i != arg; i += step) {
715 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
716 if (ACPI_FAILURE(status))
720 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1);
723 case ACPI_IBM_METHOD_VOLUME:
724 if (arg < 0 || arg > 14)
727 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
728 if (ACPI_FAILURE(status))
731 if (sc->cmos_handle) {
732 val = val_ec & IBM_EC_MASK_VOL;
736 Arg.Type = ACPI_TYPE_INTEGER;
737 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : IBM_CMOS_VOLUME_DOWN;
739 step = (arg > val) ? 1 : -1;
740 for (int i = val; i != arg; i += step) {
741 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
742 if (ACPI_FAILURE(status))
746 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, arg + (val_ec & (~IBM_EC_MASK_VOL)), 1);
749 case ACPI_IBM_METHOD_MUTE:
750 if (arg < 0 || arg > 1)
753 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
754 if (ACPI_FAILURE(status))
757 if (sc->cmos_handle) {
758 val = val_ec & IBM_EC_MASK_VOL;
762 Arg.Type = ACPI_TYPE_INTEGER;
763 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE;
765 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
766 if (ACPI_FAILURE(status))
769 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, (arg==1) ? val_ec | IBM_EC_MASK_MUTE : val_ec & (~IBM_EC_MASK_MUTE), 1);
772 case ACPI_IBM_METHOD_THINKLIGHT:
773 if (arg < 0 || arg > 1)
776 if (sc->light_set_supported) {
779 Arg.Type = ACPI_TYPE_INTEGER;
780 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
782 status = AcpiEvaluateObject(sc->light_handle, NULL, &Args, NULL);
783 if (ACPI_SUCCESS(status))
789 case ACPI_IBM_METHOD_BLUETOOTH:
790 if (arg < 0 || arg > 1)
793 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : sc->wlan_bt_flags & (~IBM_NAME_MASK_BT);
794 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val);
797 case ACPI_IBM_METHOD_FANLEVEL:
798 if (arg < 0 || arg > 7)
801 if (!sc->fan_handle) {
802 /* Read the current fanstatus */
803 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
804 val = val_ec & (~IBM_EC_MASK_FANLEVEL);
806 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1);
810 case ACPI_IBM_METHOD_FANSTATUS:
811 if (arg < 0 || arg > 1)
814 if (!sc->fan_handle) {
815 /* Read the current fanstatus */
816 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
818 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS,
819 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1);
828 acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method)
831 ACPI_OBJECT_TYPE cmos_t;
832 ACPI_HANDLE ledb_handle;
835 case ACPI_IBM_METHOD_EVENTS:
836 /* Events are disabled by default */
839 case ACPI_IBM_METHOD_EVENTMASK:
840 return (sc->events_mask_supported);
842 case ACPI_IBM_METHOD_HOTKEY:
843 case ACPI_IBM_METHOD_BRIGHTNESS:
844 case ACPI_IBM_METHOD_VOLUME:
845 case ACPI_IBM_METHOD_MUTE:
846 /* EC is required here, which was aready checked before */
849 case ACPI_IBM_METHOD_THINKLIGHT:
850 sc->cmos_handle = NULL;
851 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(
852 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val));
854 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) ||
855 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) ||
856 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) &&
857 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
858 cmos_t == ACPI_TYPE_METHOD) {
859 sc->light_cmd_on = 0x0c;
860 sc->light_cmd_off = 0x0d;
861 sc->cmos_handle = sc->light_handle;
863 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) {
864 sc->light_cmd_on = 1;
865 sc->light_cmd_off = 0;
868 sc->light_handle = NULL;
870 sc->light_set_supported = (sc->light_handle &&
871 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle)));
873 if (sc->light_get_supported)
876 if (sc->light_set_supported) {
883 case ACPI_IBM_METHOD_BLUETOOTH:
884 case ACPI_IBM_METHOD_WLAN:
885 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy)))
889 case ACPI_IBM_METHOD_FANSPEED:
891 * Some models report the fan speed in levels from 0-7
892 * Newer models report it contiguously
895 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) ||
896 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle)));
899 case ACPI_IBM_METHOD_FANLEVEL:
900 case ACPI_IBM_METHOD_FANSTATUS:
902 * Fan status is only supported on those models,
903 * which report fan RPM contiguously, not in levels
909 case ACPI_IBM_METHOD_THERMAL:
910 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) {
911 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy));
920 acpi_ibm_refresh(void *arg)
922 struct acpi_ibm_softc *sc;
923 char temp_cmd[] = "TMP0";
924 int i, data, temp[8];
927 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
929 sc = (struct acpi_ibm_softc *)arg;
931 ACPI_SERIAL_BEGIN(ibm);
933 for (i = 0; i < IBM_THERMAL_SENSORS; ++i) {
934 temp_cmd[3] = '0' + i;
937 * The TMPx methods seem to return +/- 128 or 0
938 * when the respecting sensor is not available
940 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
941 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0) {
942 sc->sensors[i].flags |= SENSOR_FINVALID;
945 else if (sc->thermal_updt_supported) {
946 /* Temperature is reported in tenth of Kelvin */
947 sc->sensors[i].value = data * 100000;
949 sc->sensors[i].value = data * 1000000 + 273150000;
951 sc->sensors[i].flags &= ~SENSOR_FINVALID;
952 if (sc->fan_handle) {
953 if (ACPI_FAILURE(acpi_GetInteger(sc->fan_handle,
955 sc->sensors[i].flags |= SENSOR_FINVALID;
959 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &speed, 2);
963 sc->sensors[i].value = data;
965 ACPI_SERIAL_END(ibm);
969 acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context)
971 int event, arg, type;
972 device_t dev = context;
973 struct acpi_ibm_softc *sc = device_get_softc(dev);
975 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
978 device_printf(dev, "Unknown notify\n");
981 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event);
987 type = (event >> 12) & 0xf;
991 if (!(sc->events_availmask & (1 << (arg - 1)))) {
992 device_printf(dev, "Unknown key %d\n", arg);
997 acpi_UserNotify("IBM", h, (arg & 0xff));