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
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
32 * Driver for extra ACPI-controlled gadgets found on IBM ThinkPad laptops.
33 * Inspired by the ibm-acpi and tpb projects which implement these features
36 * acpi-ibm: <http://ibm-acpi.sourceforge.net/>
37 * tpb: <http://www.nongnu.org/tpb/>
41 #include <sys/param.h>
42 #include <sys/kernel.h>
44 #include <machine/cpufunc.h>
46 #include <contrib/dev/acpica/include/acpi.h>
47 #include <contrib/dev/acpica/include/accommon.h>
50 #include <sys/module.h>
51 #include <dev/acpica/acpivar.h>
52 #include <dev/led/led.h>
53 #include <sys/power.h>
55 #include <sys/sysctl.h>
58 #define _COMPONENT ACPI_OEM
59 ACPI_MODULE_NAME("IBM")
61 /* Internal methods */
62 #define ACPI_IBM_METHOD_EVENTS 1
63 #define ACPI_IBM_METHOD_EVENTMASK 2
64 #define ACPI_IBM_METHOD_HOTKEY 3
65 #define ACPI_IBM_METHOD_BRIGHTNESS 4
66 #define ACPI_IBM_METHOD_VOLUME 5
67 #define ACPI_IBM_METHOD_MUTE 6
68 #define ACPI_IBM_METHOD_THINKLIGHT 7
69 #define ACPI_IBM_METHOD_BLUETOOTH 8
70 #define ACPI_IBM_METHOD_WLAN 9
71 #define ACPI_IBM_METHOD_FANSPEED 10
72 #define ACPI_IBM_METHOD_FANLEVEL 11
73 #define ACPI_IBM_METHOD_FANSTATUS 12
74 #define ACPI_IBM_METHOD_THERMAL 13
75 #define ACPI_IBM_METHOD_HANDLEREVENTS 14
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"
133 #define IBM_EVENT_LCD_BACKLIGHT 0x03
134 #define IBM_EVENT_SUSPEND_TO_RAM 0x04
135 #define IBM_EVENT_BLUETOOTH 0x05
136 #define IBM_EVENT_SCREEN_EXPAND 0x07
137 #define IBM_EVENT_SUSPEND_TO_DISK 0x0c
138 #define IBM_EVENT_BRIGHTNESS_UP 0x10
139 #define IBM_EVENT_BRIGHTNESS_DOWN 0x11
140 #define IBM_EVENT_THINKLIGHT 0x12
141 #define IBM_EVENT_ZOOM 0x14
142 #define IBM_EVENT_VOLUME_UP 0x15
143 #define IBM_EVENT_VOLUME_DOWN 0x16
144 #define IBM_EVENT_MUTE 0x17
145 #define IBM_EVENT_ACCESS_IBM_BUTTON 0x18
147 #define ABS(x) (((x) < 0)? -(x) : (x))
149 struct acpi_ibm_softc {
153 /* Embedded controller */
155 ACPI_HANDLE ec_handle;
158 ACPI_HANDLE cmos_handle;
161 ACPI_HANDLE fan_handle;
164 /* Keylight commands and states */
165 ACPI_HANDLE light_handle;
169 int light_get_supported;
170 int light_set_supported;
172 /* led(4) interface */
173 struct cdev *led_dev;
178 int thermal_updt_supported;
180 unsigned int events_availmask;
181 unsigned int events_initialmask;
182 int events_mask_supported;
185 unsigned int handler_events;
187 struct sysctl_ctx_list *sysctl_ctx;
188 struct sysctl_oid *sysctl_tree;
196 } acpi_ibm_sysctls[] = {
199 .method = ACPI_IBM_METHOD_EVENTS,
200 .description = "ACPI events enable",
201 .access = CTLTYPE_INT | CTLFLAG_RW
205 .method = ACPI_IBM_METHOD_EVENTMASK,
206 .description = "ACPI eventmask",
207 .access = CTLTYPE_INT | CTLFLAG_RW
211 .method = ACPI_IBM_METHOD_HOTKEY,
212 .description = "Key Status",
213 .access = CTLTYPE_INT | CTLFLAG_RD
216 .name = "lcd_brightness",
217 .method = ACPI_IBM_METHOD_BRIGHTNESS,
218 .description = "LCD Brightness",
219 .access = CTLTYPE_INT | CTLFLAG_RW
223 .method = ACPI_IBM_METHOD_VOLUME,
224 .description = "Volume",
225 .access = CTLTYPE_INT | CTLFLAG_RW
229 .method = ACPI_IBM_METHOD_MUTE,
230 .description = "Mute",
231 .access = CTLTYPE_INT | CTLFLAG_RW
234 .name = "thinklight",
235 .method = ACPI_IBM_METHOD_THINKLIGHT,
236 .description = "Thinklight enable",
237 .access = CTLTYPE_INT | CTLFLAG_RW
241 .method = ACPI_IBM_METHOD_BLUETOOTH,
242 .description = "Bluetooth enable",
243 .access = CTLTYPE_INT | CTLFLAG_RW
247 .method = ACPI_IBM_METHOD_WLAN,
248 .description = "WLAN enable",
249 .access = CTLTYPE_INT | CTLFLAG_RD
253 .method = ACPI_IBM_METHOD_FANSPEED,
254 .description = "Fan speed",
255 .access = CTLTYPE_INT | CTLFLAG_RD
259 .method = ACPI_IBM_METHOD_FANLEVEL,
260 .description = "Fan level",
261 .access = CTLTYPE_INT | CTLFLAG_RW
265 .method = ACPI_IBM_METHOD_FANSTATUS,
266 .description = "Fan enable",
267 .access = CTLTYPE_INT | CTLFLAG_RW
273 ACPI_SERIAL_DECL(ibm, "ACPI IBM extras");
275 static int acpi_ibm_probe(device_t dev);
276 static int acpi_ibm_attach(device_t dev);
277 static int acpi_ibm_detach(device_t dev);
278 static int acpi_ibm_resume(device_t dev);
280 static void ibm_led(void *softc, int onoff);
281 static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused);
283 static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS);
284 static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method);
285 static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method);
286 static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val);
288 static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val);
289 static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS);
290 static int acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS);
291 static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context);
293 static int acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg);
294 static int acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg);
295 static int acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg);
296 static int acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg);
297 static int acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg);
299 static device_method_t acpi_ibm_methods[] = {
300 /* Device interface */
301 DEVMETHOD(device_probe, acpi_ibm_probe),
302 DEVMETHOD(device_attach, acpi_ibm_attach),
303 DEVMETHOD(device_detach, acpi_ibm_detach),
304 DEVMETHOD(device_resume, acpi_ibm_resume),
309 static driver_t acpi_ibm_driver = {
312 sizeof(struct acpi_ibm_softc),
315 static devclass_t acpi_ibm_devclass;
317 DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass,
319 MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1);
320 static char *ibm_ids[] = {"IBM0068", "LEN0068", NULL};
323 ibm_led(void *softc, int onoff)
325 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc;
327 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
333 sc->led_state = onoff;
335 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc);
339 ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused)
341 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
343 ACPI_SERIAL_BEGIN(ibm);
344 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state);
345 ACPI_SERIAL_END(ibm);
351 acpi_ibm_probe(device_t dev)
353 if (acpi_disabled("ibm") ||
354 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL ||
355 device_get_unit(dev) != 0)
358 device_set_desc(dev, "IBM ThinkPad ACPI Extras");
364 acpi_ibm_attach(device_t dev)
366 struct acpi_ibm_softc *sc;
367 devclass_t ec_devclass;
369 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
371 sc = device_get_softc(dev);
373 sc->handle = acpi_get_handle(dev);
375 /* Look for the first embedded controller */
376 if (!(ec_devclass = devclass_find ("acpi_ec"))) {
378 device_printf(dev, "Couldn't find acpi_ec devclass\n");
381 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
383 device_printf(dev, "Couldn't find acpi_ec device\n");
386 sc->ec_handle = acpi_get_handle(sc->ec_dev);
388 /* Get the sysctl tree */
389 sc->sysctl_ctx = device_get_sysctl_ctx(dev);
390 sc->sysctl_tree = device_get_sysctl_tree(dev);
392 /* Look for event mask and hook up the nodes */
393 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
394 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
396 if (sc->events_mask_supported) {
397 SYSCTL_ADD_UINT(sc->sysctl_ctx,
398 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
399 "initialmask", CTLFLAG_RD,
400 &sc->events_initialmask, 0, "Initial eventmask");
402 /* The availmask is the bitmask of supported events */
403 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
404 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
405 sc->events_availmask = 0xffffffff;
407 SYSCTL_ADD_UINT(sc->sysctl_ctx,
408 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
409 "availmask", CTLFLAG_RD,
410 &sc->events_availmask, 0, "Mask of supported events");
413 /* Hook up proc nodes */
414 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
415 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method))
418 SYSCTL_ADD_PROC(sc->sysctl_ctx,
419 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
420 acpi_ibm_sysctls[i].name, acpi_ibm_sysctls[i].access,
421 sc, i, acpi_ibm_sysctl, "I",
422 acpi_ibm_sysctls[i].description);
425 /* Hook up thermal node */
426 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) {
427 SYSCTL_ADD_PROC(sc->sysctl_ctx,
428 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
429 "thermal", CTLTYPE_INT | CTLFLAG_RD,
430 sc, 0, acpi_ibm_thermal_sysctl, "I",
434 /* Hook up handlerevents node */
435 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_HANDLEREVENTS)) {
436 SYSCTL_ADD_PROC(sc->sysctl_ctx,
437 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
438 "handlerevents", CTLTYPE_STRING | CTLFLAG_RW,
439 sc, 0, acpi_ibm_handlerevents_sysctl, "I",
440 "devd(8) events handled by acpi_ibm");
443 /* Handle notifies */
444 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
445 acpi_ibm_notify, dev);
447 /* Hook up light to led(4) */
448 if (sc->light_set_supported)
449 sc->led_dev = led_create_state(ibm_led, sc, "thinklight", sc->light_val);
455 acpi_ibm_detach(device_t dev)
457 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
459 struct acpi_ibm_softc *sc = device_get_softc(dev);
461 /* Disable events and restore eventmask */
462 ACPI_SERIAL_BEGIN(ibm);
463 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0);
464 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask);
465 ACPI_SERIAL_END(ibm);
467 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify);
469 if (sc->led_dev != NULL)
470 led_destroy(sc->led_dev);
476 acpi_ibm_resume(device_t dev)
478 struct acpi_ibm_softc *sc = device_get_softc(dev);
480 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
482 ACPI_SERIAL_BEGIN(ibm);
483 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
486 if ((acpi_ibm_sysctls[i].access & CTLFLAG_RD) == 0) {
490 val = acpi_ibm_sysctl_get(sc, i);
492 if ((acpi_ibm_sysctls[i].access & CTLFLAG_WR) == 0) {
496 acpi_ibm_sysctl_set(sc, i, val);
498 ACPI_SERIAL_END(ibm);
504 acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val)
507 ACPI_OBJECT_LIST args;
510 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
511 ACPI_SERIAL_ASSERT(ibm);
515 arg[0].Type = ACPI_TYPE_INTEGER;
516 arg[1].Type = ACPI_TYPE_INTEGER;
518 for (int i = 0; i < 32; ++i) {
519 arg[0].Integer.Value = i+1;
520 arg[1].Integer.Value = (((1 << i) & val) != 0);
521 status = AcpiEvaluateObject(sc->handle,
522 IBM_NAME_EVENTS_MASK_SET, &args, NULL);
524 if (ACPI_FAILURE(status))
532 acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS)
534 struct acpi_ibm_softc *sc;
540 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
542 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
543 function = oidp->oid_arg2;
544 method = acpi_ibm_sysctls[function].method;
546 ACPI_SERIAL_BEGIN(ibm);
547 arg = acpi_ibm_sysctl_get(sc, method);
548 error = sysctl_handle_int(oidp, &arg, 0, req);
551 if (error != 0 || req->newptr == NULL)
555 error = acpi_ibm_sysctl_set(sc, method, arg);
558 ACPI_SERIAL_END(ibm);
563 acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method)
568 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
569 ACPI_SERIAL_ASSERT(ibm);
572 case ACPI_IBM_METHOD_EVENTS:
573 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val);
576 case ACPI_IBM_METHOD_EVENTMASK:
577 if (sc->events_mask_supported)
578 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val);
581 case ACPI_IBM_METHOD_HOTKEY:
583 * Construct the hotkey as a bitmask as illustrated below.
584 * Note that whenever a key was pressed, the respecting bit
585 * toggles and nothing else changes.
586 * +--+--+-+-+-+-+-+-+-+-+-+-+
587 * |11|10|9|8|7|6|5|4|3|2|1|0|
588 * +--+--+-+-+-+-+-+-+-+-+-+-+
589 * | | | | | | | | | | | |
590 * | | | | | | | | | | | +- Home Button
591 * | | | | | | | | | | +--- Search Button
592 * | | | | | | | | | +----- Mail Button
593 * | | | | | | | | +------- Thinkpad Button
594 * | | | | | | | +--------- Zoom (Fn + Space)
595 * | | | | | | +----------- WLAN Button
596 * | | | | | +------------- Video Button
597 * | | | | +--------------- Hibernate Button
598 * | | | +----------------- Thinklight Button
599 * | | +------------------- Screen expand (Fn + F8)
600 * | +--------------------- Brightness
601 * +------------------------ Volume/Mute
603 key = rtcin(IBM_RTC_HOTKEY1);
604 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key;
605 key = rtcin(IBM_RTC_HOTKEY2);
606 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key;
607 val |= (IBM_RTC_MASK_ZOOM & key) >> 1;
608 key = rtcin(IBM_RTC_THINKLIGHT);
609 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
610 key = rtcin(IBM_RTC_SCREENEXPAND);
611 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
612 key = rtcin(IBM_RTC_BRIGHTNESS);
613 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5;
614 key = rtcin(IBM_RTC_VOLUME);
615 val |= (IBM_RTC_MASK_VOLUME & key) << 4;
618 case ACPI_IBM_METHOD_BRIGHTNESS:
619 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
620 val = val_ec & IBM_EC_MASK_BRI;
623 case ACPI_IBM_METHOD_VOLUME:
624 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
625 val = val_ec & IBM_EC_MASK_VOL;
628 case ACPI_IBM_METHOD_MUTE:
629 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
630 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
633 case ACPI_IBM_METHOD_THINKLIGHT:
634 if (sc->light_get_supported)
635 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val);
640 case ACPI_IBM_METHOD_BLUETOOTH:
641 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
642 sc->wlan_bt_flags = val;
643 val = ((val & IBM_NAME_MASK_BT) != 0);
646 case ACPI_IBM_METHOD_WLAN:
647 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
648 sc->wlan_bt_flags = val;
649 val = ((val & IBM_NAME_MASK_WLAN) != 0);
652 case ACPI_IBM_METHOD_FANSPEED:
653 if (sc->fan_handle) {
654 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val)))
658 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2);
663 case ACPI_IBM_METHOD_FANLEVEL:
665 * The IBM_EC_FANSTATUS register works as follows:
666 * Bit 0-5 indicate the level at which the fan operates. Only
667 * values between 0 and 7 have an effect. Everything
668 * above 7 is treated the same as level 7
669 * Bit 6 overrides the fan speed limit if set to 1
670 * Bit 7 indicates at which mode the fan operates:
671 * manual (0) or automatic (1)
673 if (!sc->fan_handle) {
674 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
675 val = val_ec & IBM_EC_MASK_FANLEVEL;
679 case ACPI_IBM_METHOD_FANSTATUS:
680 if (!sc->fan_handle) {
681 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
682 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS;
693 acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg)
699 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
700 ACPI_SERIAL_ASSERT(ibm);
703 case ACPI_IBM_METHOD_EVENTS:
704 if (arg < 0 || arg > 1)
707 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg);
708 if (ACPI_FAILURE(status))
710 if (sc->events_mask_supported)
711 return acpi_ibm_eventmask_set(sc, sc->events_availmask);
714 case ACPI_IBM_METHOD_EVENTMASK:
715 if (sc->events_mask_supported)
716 return acpi_ibm_eventmask_set(sc, arg);
719 case ACPI_IBM_METHOD_BRIGHTNESS:
720 return acpi_ibm_brightness_set(sc, arg);
723 case ACPI_IBM_METHOD_VOLUME:
724 return acpi_ibm_volume_set(sc, arg);
727 case ACPI_IBM_METHOD_MUTE:
728 return acpi_ibm_mute_set(sc, arg);
731 case ACPI_IBM_METHOD_THINKLIGHT:
732 return acpi_ibm_thinklight_set(sc, arg);
735 case ACPI_IBM_METHOD_BLUETOOTH:
736 return acpi_ibm_bluetooth_set(sc, arg);
739 case ACPI_IBM_METHOD_FANLEVEL:
740 if (arg < 0 || arg > 7)
743 if (!sc->fan_handle) {
744 /* Read the current fanstatus */
745 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
746 val = val_ec & (~IBM_EC_MASK_FANLEVEL);
748 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1);
752 case ACPI_IBM_METHOD_FANSTATUS:
753 if (arg < 0 || arg > 1)
756 if (!sc->fan_handle) {
757 /* Read the current fanstatus */
758 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
760 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS,
761 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1);
770 acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method)
773 ACPI_OBJECT_TYPE cmos_t;
774 ACPI_HANDLE ledb_handle;
777 case ACPI_IBM_METHOD_EVENTS:
778 /* Events are disabled by default */
781 case ACPI_IBM_METHOD_EVENTMASK:
782 return (sc->events_mask_supported);
784 case ACPI_IBM_METHOD_HOTKEY:
785 case ACPI_IBM_METHOD_BRIGHTNESS:
786 case ACPI_IBM_METHOD_VOLUME:
787 case ACPI_IBM_METHOD_MUTE:
788 /* EC is required here, which was aready checked before */
791 case ACPI_IBM_METHOD_THINKLIGHT:
792 sc->cmos_handle = NULL;
793 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(
794 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val));
796 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) ||
797 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) ||
798 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) &&
799 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
800 cmos_t == ACPI_TYPE_METHOD) {
801 sc->light_cmd_on = 0x0c;
802 sc->light_cmd_off = 0x0d;
803 sc->cmos_handle = sc->light_handle;
805 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) {
806 sc->light_cmd_on = 1;
807 sc->light_cmd_off = 0;
810 sc->light_handle = NULL;
812 sc->light_set_supported = (sc->light_handle &&
813 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle)));
815 if (sc->light_get_supported)
818 if (sc->light_set_supported) {
825 case ACPI_IBM_METHOD_BLUETOOTH:
826 case ACPI_IBM_METHOD_WLAN:
827 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy)))
831 case ACPI_IBM_METHOD_FANSPEED:
833 * Some models report the fan speed in levels from 0-7
834 * Newer models report it contiguously
837 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) ||
838 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle)));
841 case ACPI_IBM_METHOD_FANLEVEL:
842 case ACPI_IBM_METHOD_FANSTATUS:
844 * Fan status is only supported on those models,
845 * which report fan RPM contiguously, not in levels
851 case ACPI_IBM_METHOD_THERMAL:
852 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) {
853 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy));
858 case ACPI_IBM_METHOD_HANDLEREVENTS:
865 acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS)
867 struct acpi_ibm_softc *sc;
869 char temp_cmd[] = "TMP0";
872 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
874 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
876 ACPI_SERIAL_BEGIN(ibm);
878 for (int i = 0; i < 8; ++i) {
879 temp_cmd[3] = '0' + i;
882 * The TMPx methods seem to return +/- 128 or 0
883 * when the respecting sensor is not available
885 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
886 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0)
888 else if (sc->thermal_updt_supported)
889 /* Temperature is reported in tenth of Kelvin */
890 temp[i] = (temp[i] - 2732 + 5) / 10;
893 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req);
895 ACPI_SERIAL_END(ibm);
900 acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS)
902 struct acpi_ibm_softc *sc;
907 unsigned int handler_events;
909 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
911 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
913 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL)
916 ACPI_SERIAL_BEGIN(ibm);
918 /* Get old values if this is a get request. */
919 if (req->newptr == NULL) {
920 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++)
921 if (sc->handler_events & (1 << i))
922 sbuf_printf(&sb, "0x%02x ", i + 1);
923 if (sbuf_len(&sb) == 0)
924 sbuf_printf(&sb, "NONE");
930 /* Copy out the old values to the user. */
931 error = SYSCTL_OUT(req, sbuf_data(&sb), sbuf_len(&sb));
934 if (error != 0 || req->newptr == NULL)
937 /* If the user is setting a string, parse it. */
939 cp = (char *)req->newptr;
948 while (*ep && !isspace(*ep))
955 if (strncmp(cp, "NONE", 4) == 0) {
960 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x'))
961 val = strtoul(cp, &ep, 16);
963 val = strtoul(cp, &ep, 10);
965 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) {
967 device_printf(sc->dev, "invalid event code: %s\n", cp);
972 handler_events |= 1 << (val - 1);
977 sc->handler_events = handler_events;
979 ACPI_SERIAL_END(ibm);
984 acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg)
989 ACPI_OBJECT_LIST Args;
992 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
993 ACPI_SERIAL_ASSERT(ibm);
995 if (arg < 0 || arg > 7)
998 /* Read the current brightness */
999 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
1000 if (ACPI_FAILURE(status))
1003 if (sc->cmos_handle) {
1004 val = val_ec & IBM_EC_MASK_BRI;
1007 Args.Pointer = &Arg;
1008 Arg.Type = ACPI_TYPE_INTEGER;
1009 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP :
1010 IBM_CMOS_BRIGHTNESS_DOWN;
1012 step = (arg > val) ? 1 : -1;
1013 for (int i = val; i != arg; i += step) {
1014 status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1016 if (ACPI_FAILURE(status)) {
1017 /* Record the last value */
1019 ACPI_EC_WRITE(sc->ec_dev,
1020 IBM_EC_BRIGHTNESS, i - step, 1);
1027 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1);
1031 acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg)
1035 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1036 ACPI_SERIAL_ASSERT(ibm);
1038 if (arg < 0 || arg > 1)
1041 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT :
1042 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT);
1043 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val);
1047 acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg)
1050 ACPI_OBJECT_LIST Args;
1053 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1054 ACPI_SERIAL_ASSERT(ibm);
1056 if (arg < 0 || arg > 1)
1059 if (sc->light_set_supported) {
1061 Args.Pointer = &Arg;
1062 Arg.Type = ACPI_TYPE_INTEGER;
1063 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
1065 status = AcpiEvaluateObject(sc->light_handle, NULL,
1067 if (ACPI_SUCCESS(status))
1068 sc->light_val = arg;
1076 acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg)
1081 ACPI_OBJECT_LIST Args;
1084 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1085 ACPI_SERIAL_ASSERT(ibm);
1087 if (arg < 0 || arg > 14)
1090 /* Read the current volume */
1091 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1092 if (ACPI_FAILURE(status))
1095 if (sc->cmos_handle) {
1096 val = val_ec & IBM_EC_MASK_VOL;
1099 Args.Pointer = &Arg;
1100 Arg.Type = ACPI_TYPE_INTEGER;
1101 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP :
1102 IBM_CMOS_VOLUME_DOWN;
1104 step = (arg > val) ? 1 : -1;
1105 for (int i = val; i != arg; i += step) {
1106 status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1108 if (ACPI_FAILURE(status)) {
1109 /* Record the last value */
1112 (val_ec & (~IBM_EC_MASK_VOL));
1113 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME,
1121 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL));
1122 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1);
1126 acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg)
1130 ACPI_OBJECT_LIST Args;
1133 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1134 ACPI_SERIAL_ASSERT(ibm);
1136 if (arg < 0 || arg > 1)
1139 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1140 if (ACPI_FAILURE(status))
1143 if (sc->cmos_handle) {
1145 Args.Pointer = &Arg;
1146 Arg.Type = ACPI_TYPE_INTEGER;
1147 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE;
1149 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
1150 if (ACPI_FAILURE(status))
1154 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE :
1155 val_ec & (~IBM_EC_MASK_MUTE);
1156 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1);
1160 acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg)
1166 ACPI_SERIAL_BEGIN(ibm);
1168 case IBM_EVENT_SUSPEND_TO_RAM:
1169 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
1172 case IBM_EVENT_BLUETOOTH:
1173 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0));
1176 case IBM_EVENT_BRIGHTNESS_UP:
1177 case IBM_EVENT_BRIGHTNESS_DOWN:
1178 /* Read the current brightness */
1179 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS,
1181 if (ACPI_FAILURE(status))
1184 val = val_ec & IBM_EC_MASK_BRI;
1185 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1;
1186 acpi_ibm_brightness_set(sc, val);
1189 case IBM_EVENT_THINKLIGHT:
1190 acpi_ibm_thinklight_set(sc, (sc->light_val == 0));
1193 case IBM_EVENT_VOLUME_UP:
1194 case IBM_EVENT_VOLUME_DOWN:
1195 /* Read the current volume */
1196 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1197 if (ACPI_FAILURE(status))
1200 val = val_ec & IBM_EC_MASK_VOL;
1201 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1;
1202 acpi_ibm_volume_set(sc, val);
1205 case IBM_EVENT_MUTE:
1206 /* Read the current value */
1207 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1208 if (ACPI_FAILURE(status))
1211 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
1212 acpi_ibm_mute_set(sc, (val == 0));
1218 ACPI_SERIAL_END(ibm);
1222 acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context)
1224 int event, arg, type;
1225 device_t dev = context;
1226 struct acpi_ibm_softc *sc = device_get_softc(dev);
1228 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
1231 device_printf(dev, "Unknown notify\n");
1234 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event);
1240 type = (event >> 12) & 0xf;
1241 arg = event & 0xfff;
1244 if (!(sc->events_availmask & (1 << (arg - 1)))) {
1245 device_printf(dev, "Unknown key %d\n", arg);
1249 /* Execute event handler */
1250 if (sc->handler_events & (1 << (arg - 1)))
1251 acpi_ibm_eventhandler(sc, (arg & 0xff));
1253 /* Notify devd(8) */
1254 acpi_UserNotify("IBM", h, (arg & 0xff));