46#include "acpi_if.h"
47#include <sys/module.h>
48#include <dev/acpica/acpivar.h>
49#include <dev/led/led.h>
50#include <sys/sysctl.h>
51#include <machine/clock.h>
52
53#define _COMPONENT ACPI_OEM
54ACPI_MODULE_NAME("IBM")
55
56/* Internal methods */
57#define ACPI_IBM_METHOD_EVENTS 1
58#define ACPI_IBM_METHOD_EVENTMASK 2
59#define ACPI_IBM_METHOD_HOTKEY 3
60#define ACPI_IBM_METHOD_BRIGHTNESS 4
61#define ACPI_IBM_METHOD_VOLUME 5
62#define ACPI_IBM_METHOD_MUTE 6
63#define ACPI_IBM_METHOD_THINKLIGHT 7
64#define ACPI_IBM_METHOD_BLUETOOTH 8
65#define ACPI_IBM_METHOD_WLAN 9
66#define ACPI_IBM_METHOD_FANSPEED 10
67#define ACPI_IBM_METHOD_FANSTATUS 11
68#define ACPI_IBM_METHOD_THERMAL 12
69
70/* Hotkeys/Buttons */
71#define IBM_RTC_HOTKEY1 0x64
72#define IBM_RTC_MASK_HOME (1 << 0)
73#define IBM_RTC_MASK_SEARCH (1 << 1)
74#define IBM_RTC_MASK_MAIL (1 << 2)
75#define IBM_RTC_MASK_WLAN (1 << 5)
76#define IBM_RTC_HOTKEY2 0x65
77#define IBM_RTC_MASK_THINKPAD (1 << 3)
78#define IBM_RTC_MASK_ZOOM (1 << 5)
79#define IBM_RTC_MASK_VIDEO (1 << 6)
80#define IBM_RTC_MASK_HIBERNATE (1 << 7)
81#define IBM_RTC_THINKLIGHT 0x66
82#define IBM_RTC_MASK_THINKLIGHT (1 << 4)
83#define IBM_RTC_SCREENEXPAND 0x67
84#define IBM_RTC_MASK_SCREENEXPAND (1 << 5)
85#define IBM_RTC_BRIGHTNESS 0x6c
86#define IBM_RTC_MASK_BRIGHTNESS (1 << 5)
87#define IBM_RTC_VOLUME 0x6e
88#define IBM_RTC_MASK_VOLUME (1 << 7)
89
90/* Embedded Controller registers */
91#define IBM_EC_BRIGHTNESS 0x31
92#define IBM_EC_MASK_BRI 0x7
93#define IBM_EC_VOLUME 0x30
94#define IBM_EC_MASK_VOL 0xf
95#define IBM_EC_MASK_MUTE (1 << 6)
96#define IBM_EC_FANSTATUS 0x2F
97#define IBM_EC_MASK_FANSTATUS (1 << 7)
98#define IBM_EC_FANSPEED 0x84
99
100/* CMOS Commands */
101#define IBM_CMOS_VOLUME_DOWN 0
102#define IBM_CMOS_VOLUME_UP 1
103#define IBM_CMOS_VOLUME_MUTE 2
104#define IBM_CMOS_BRIGHTNESS_UP 4
105#define IBM_CMOS_BRIGHTNESS_DOWN 5
106
107/* ACPI methods */
108#define IBM_NAME_KEYLIGHT "KBLT"
109#define IBM_NAME_WLAN_BT_GET "GBDC"
110#define IBM_NAME_WLAN_BT_SET "SBDC"
111#define IBM_NAME_MASK_BT (1 << 1)
112#define IBM_NAME_MASK_WLAN (1 << 2)
113#define IBM_NAME_THERMAL_GET "TMP7"
114#define IBM_NAME_THERMAL_UPDT "UPDT"
115
116#define IBM_NAME_EVENTS_STATUS_GET "DHKC"
117#define IBM_NAME_EVENTS_MASK_GET "DHKN"
118#define IBM_NAME_EVENTS_STATUS_SET "MHKC"
119#define IBM_NAME_EVENTS_MASK_SET "MHKM"
120#define IBM_NAME_EVENTS_GET "MHKP"
121#define IBM_NAME_EVENTS_AVAILMASK "MHKA"
122
123#define ABS(x) (((x) < 0)? -(x) : (x))
124
125struct acpi_ibm_softc {
126 device_t dev;
127 ACPI_HANDLE handle;
128
129 /* Embedded controller */
130 device_t ec_dev;
131 ACPI_HANDLE ec_handle;
132
133 /* CMOS */
134 ACPI_HANDLE cmos_handle;
135
136 /* Fan status */
137 ACPI_HANDLE fan_handle;
138 int fan_levels;
139
140 /* Keylight commands and states */
141 ACPI_HANDLE light_handle;
142 int light_cmd_on;
143 int light_cmd_off;
144 int light_val;
145 int light_get_supported;
146 int light_set_supported;
147
148 /* led(4) interface */
149 struct cdev *led_dev;
150 int led_busy;
151 int led_state;
152
153 int wlan_bt_flags;
154 int thermal_updt_supported;
155
156 unsigned int events_availmask;
157 unsigned int events_initialmask;
158 int events_mask_supported;
159 int events_enable;
160
161 struct sysctl_ctx_list *sysctl_ctx;
162 struct sysctl_oid *sysctl_tree;
163};
164
165static struct {
166 char *name;
167 int method;
168 char *description;
169 int access;
170} acpi_ibm_sysctls[] = {
171 {
172 .name = "events",
173 .method = ACPI_IBM_METHOD_EVENTS,
174 .description = "ACPI events enable",
175 .access = CTLTYPE_INT | CTLFLAG_RW
176 },
177 {
178 .name = "eventmask",
179 .method = ACPI_IBM_METHOD_EVENTMASK,
180 .description = "ACPI eventmask",
181 .access = CTLTYPE_INT | CTLFLAG_RW
182 },
183 {
184 .name = "hotkey",
185 .method = ACPI_IBM_METHOD_HOTKEY,
186 .description = "Key Status",
187 .access = CTLTYPE_INT | CTLFLAG_RD
188 },
189 {
190 .name = "lcd_brightness",
191 .method = ACPI_IBM_METHOD_BRIGHTNESS,
192 .description = "LCD Brightness",
193 .access = CTLTYPE_INT | CTLFLAG_RW
194 },
195 {
196 .name = "volume",
197 .method = ACPI_IBM_METHOD_VOLUME,
198 .description = "Volume",
199 .access = CTLTYPE_INT | CTLFLAG_RW
200 },
201 {
202 .name = "mute",
203 .method = ACPI_IBM_METHOD_MUTE,
204 .description = "Mute",
205 .access = CTLTYPE_INT | CTLFLAG_RW
206 },
207 {
208 .name = "thinklight",
209 .method = ACPI_IBM_METHOD_THINKLIGHT,
210 .description = "Thinklight enable",
211 .access = CTLTYPE_INT | CTLFLAG_RW
212 },
213 {
214 .name = "bluetooth",
215 .method = ACPI_IBM_METHOD_BLUETOOTH,
216 .description = "Bluetooth enable",
217 .access = CTLTYPE_INT | CTLFLAG_RW
218 },
219 {
220 .name = "wlan",
221 .method = ACPI_IBM_METHOD_WLAN,
222 .description = "WLAN enable",
223 .access = CTLTYPE_INT | CTLFLAG_RD
224 },
225 {
226 .name = "fan_speed",
227 .method = ACPI_IBM_METHOD_FANSPEED,
228 .description = "Fan speed",
229 .access = CTLTYPE_INT | CTLFLAG_RD
230 },
231 {
232 .name = "fan",
233 .method = ACPI_IBM_METHOD_FANSTATUS,
234 .description = "Fan enable",
235 .access = CTLTYPE_INT | CTLFLAG_RD
236 },
237
238 { NULL, 0, NULL, 0 }
239};
240
241ACPI_SERIAL_DECL(ibm, "ACPI IBM extras");
242
243static int acpi_ibm_probe(device_t dev);
244static int acpi_ibm_attach(device_t dev);
245static int acpi_ibm_detach(device_t dev);
246
247static void ibm_led(void *softc, int onoff);
248static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused);
249
250static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS);
251static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method);
252static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method);
253static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val);
254
255static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val);
256static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS);
257static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context);
258
259static device_method_t acpi_ibm_methods[] = {
260 /* Device interface */
261 DEVMETHOD(device_probe, acpi_ibm_probe),
262 DEVMETHOD(device_attach, acpi_ibm_attach),
263 DEVMETHOD(device_detach, acpi_ibm_detach),
264
265 {0, 0}
266};
267
268static driver_t acpi_ibm_driver = {
269 "acpi_ibm",
270 acpi_ibm_methods,
271 sizeof(struct acpi_ibm_softc),
272};
273
274static devclass_t acpi_ibm_devclass;
275
276DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass,
277 0, 0);
278MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1);
279static char *ibm_ids[] = {"IBM0057", "IBM0068", NULL};
280
281static void
282ibm_led(void *softc, int onoff)
283{
284 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc;
285
286 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
287
288 if (sc->led_busy)
289 return;
290
291 sc->led_busy = 1;
292 sc->led_state = onoff;
293
294 AcpiOsQueueForExecution(OSD_PRIORITY_LO,
295 (void *)ibm_led_task, sc);
296}
297
298static void
299ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused)
300{
301 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
302
303 ACPI_SERIAL_BEGIN(ibm);
304 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state);
305 ACPI_SERIAL_END(ibm);
306
307 sc->led_busy = 0;
308}
309
310static int
311acpi_ibm_probe(device_t dev)
312{
313 if (acpi_disabled("ibm") ||
314 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL ||
315 device_get_unit(dev) != 0)
316 return (ENXIO);
317
318 device_set_desc(dev, "IBM ThinkPad ACPI Extras");
319
320 return (0);
321}
322
323static int
324acpi_ibm_attach(device_t dev)
325{
326 struct acpi_ibm_softc *sc;
327 struct acpi_softc *acpi_sc;
328 devclass_t ec_devclass;
329
330 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
331
332 sc = device_get_softc(dev);
333 sc->dev = dev;
334 sc->handle = acpi_get_handle(dev);
335
336 acpi_sc = acpi_device_get_parent_softc(dev);
337
338 /* Look for the first embedded controller */
339 if (!(ec_devclass = devclass_find ("acpi_ec"))) {
340 if (bootverbose)
341 device_printf(dev, "Couldn't find acpi_ec devclass\n");
342 return (EINVAL);
343 }
344 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
345 if (bootverbose)
346 device_printf(dev, "Couldn't find acpi_ec device\n");
347 return (EINVAL);
348 }
349 sc->ec_handle = acpi_get_handle(sc->ec_dev);
350
351 ACPI_SERIAL_BEGIN(ibm);
352
353 /* Get the sysctl tree */
354 sc->sysctl_ctx = device_get_sysctl_ctx(dev);
355 sc->sysctl_tree = device_get_sysctl_tree(dev);
356
357 /* Look for event mask and hook up the nodes */
358 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
359 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
360
361 if (sc->events_mask_supported) {
362 SYSCTL_ADD_INT(sc->sysctl_ctx,
363 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
364 "initialmask", CTLFLAG_RD,
365 &sc->events_initialmask, 0, "Initial eventmask");
366
367 /* The availmask is the bitmask of supported events */
368 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
369 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
370 sc->events_availmask = 0xffffffff;
371
372 SYSCTL_ADD_INT(sc->sysctl_ctx,
373 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
374 "availmask", CTLFLAG_RD,
375 &sc->events_availmask, 0, "Mask of supported events");
376 }
377
378 /* Hook up proc nodes */
379 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
380 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method))
381 continue;
382
383 SYSCTL_ADD_PROC(sc->sysctl_ctx,
384 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
385 acpi_ibm_sysctls[i].name, acpi_ibm_sysctls[i].access,
386 sc, i, acpi_ibm_sysctl, "I",
387 acpi_ibm_sysctls[i].description);
388 }
389
390 /* Hook up thermal node */
391 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) {
392 SYSCTL_ADD_PROC(sc->sysctl_ctx,
393 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
394 "thermal", CTLTYPE_STRING | CTLFLAG_RD,
395 sc, 0, acpi_ibm_thermal_sysctl, "I",
396 "Thermal zones");
397 }
398
399 ACPI_SERIAL_END(ibm);
400
401 /* Handle notifies */
402 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
403 acpi_ibm_notify, dev);
404
405 /* Hook up light to led(4) */
406 if (sc->light_set_supported)
407 sc->led_dev = led_create(ibm_led, sc, "thinklight");
408
409 return (0);
410}
411
412static int
413acpi_ibm_detach(device_t dev)
414{
415 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
416
417 struct acpi_ibm_softc *sc = device_get_softc(dev);
418
419 /* Disable events and restore eventmask */
420 ACPI_SERIAL_BEGIN(ibm);
421 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0);
422 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask);
423 ACPI_SERIAL_END(ibm);
424
425 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify);
426
427 if (sc->led_dev != NULL)
428 led_destroy(sc->led_dev);
429
430 return (0);
431}
432
433static int
434acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val)
435{
436 ACPI_OBJECT arg[2];
437 ACPI_OBJECT_LIST args;
438 ACPI_STATUS status;
439
440 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
441 ACPI_SERIAL_ASSERT(ibm);
442
443 args.Count = 2;
444 args.Pointer = arg;
445 arg[0].Type = ACPI_TYPE_INTEGER;
446 arg[1].Type = ACPI_TYPE_INTEGER;
447
448 for (int i = 0; i < 32; ++i) {
449 arg[0].Integer.Value = i+1;
450 arg[1].Integer.Value = (((1 << i) & val) != 0);
451 status = AcpiEvaluateObject(sc->handle,
452 IBM_NAME_EVENTS_MASK_SET, &args, NULL);
453
454 if (ACPI_FAILURE(status))
455 return (status);
456 }
457
458 return (0);
459}
460
461static int
462acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS)
463{
464 struct acpi_ibm_softc *sc;
465 int arg;
466 int error = 0;
467 int function;
468 int method;
469
470 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
471
472 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
473 function = oidp->oid_arg2;
474 method = acpi_ibm_sysctls[function].method;
475
476 ACPI_SERIAL_BEGIN(ibm);
477 arg = acpi_ibm_sysctl_get(sc, method);
478 error = sysctl_handle_int(oidp, &arg, 0, req);
479
480 /* Sanity check */
481 if (error != 0 || req->newptr == NULL)
482 goto out;
483
484 /* Update */
485 error = acpi_ibm_sysctl_set(sc, method, arg);
486
487out:
488 ACPI_SERIAL_END(ibm);
489 return (error);
490}
491
492static int
493acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method)
494{
495 ACPI_INTEGER val_ec;
496 int val = 0, key;
497
498 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
499 ACPI_SERIAL_ASSERT(ibm);
500
501 switch (method) {
502 case ACPI_IBM_METHOD_EVENTS:
503 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val);
504 break;
505
506 case ACPI_IBM_METHOD_EVENTMASK:
507 if (sc->events_mask_supported)
508 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val);
509 break;
510
511 case ACPI_IBM_METHOD_HOTKEY:
512 /*
513 * Construct the hotkey as a bitmask as illustrated below.
514 * Note that whenever a key was pressed, the respecting bit
515 * toggles and nothing else changes.
516 * +--+--+-+-+-+-+-+-+-+-+-+-+
517 * |11|10|9|8|7|6|5|4|3|2|1|0|
518 * +--+--+-+-+-+-+-+-+-+-+-+-+
519 * | | | | | | | | | | | |
520 * | | | | | | | | | | | +- Home Button
521 * | | | | | | | | | | +--- Search Button
522 * | | | | | | | | | +----- Mail Button
523 * | | | | | | | | +------- Thinkpad Button
524 * | | | | | | | +--------- Zoom (Fn + Space)
525 * | | | | | | +----------- WLAN Button
526 * | | | | | +------------- Video Button
527 * | | | | +--------------- Hibernate Button
528 * | | | +----------------- Thinklight Button
529 * | | +------------------- Screen expand (Fn + F8)
530 * | +--------------------- Brightness
531 * +------------------------ Volume/Mute
532 */
533 key = rtcin(IBM_RTC_HOTKEY1);
534 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key;
535 key = rtcin(IBM_RTC_HOTKEY2);
536 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key;
537 val |= (IBM_RTC_MASK_ZOOM & key) >> 1;
538 key = rtcin(IBM_RTC_THINKLIGHT);
539 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
540 key = rtcin(IBM_RTC_SCREENEXPAND);
541 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
542 key = rtcin(IBM_RTC_BRIGHTNESS);
543 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5;
544 key = rtcin(IBM_RTC_VOLUME);
545 val |= (IBM_RTC_MASK_VOLUME & key) << 4;
546 break;
547
548 case ACPI_IBM_METHOD_BRIGHTNESS:
549 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
550 val = val_ec & IBM_EC_MASK_BRI;
551 break;
552
553 case ACPI_IBM_METHOD_VOLUME:
554 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
555 val = val_ec & IBM_EC_MASK_VOL;
556 break;
557
558 case ACPI_IBM_METHOD_MUTE:
559 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
560 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
561 break;
562
563 case ACPI_IBM_METHOD_THINKLIGHT:
564 if (sc->light_get_supported)
565 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val);
566 else
567 val = sc->light_val;
568 break;
569
570 case ACPI_IBM_METHOD_BLUETOOTH:
571 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
572 sc->wlan_bt_flags = val;
573 val = ((val & IBM_NAME_MASK_BT) != 0);
574 break;
575
576 case ACPI_IBM_METHOD_WLAN:
577 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
578 sc->wlan_bt_flags = val;
579 val = ((val & IBM_NAME_MASK_WLAN) != 0);
580 break;
581
582 case ACPI_IBM_METHOD_FANSPEED:
583 if (sc->fan_handle) {
584 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val)))
585 val = -1;
586 }
587 else {
588 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2);
589 val = val_ec;
590 }
591 break;
592
593 case ACPI_IBM_METHOD_FANSTATUS:
594 if (!sc->fan_handle) {
595 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
596 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS;
597 }
598 else
599 val = -1;
600 break;
601 }
602
603 return (val);
604}
605
606static int
607acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg)
608{
609 int val, step;
610 ACPI_INTEGER val_ec;
611 ACPI_OBJECT Arg;
612 ACPI_OBJECT_LIST Args;
613 ACPI_STATUS status;
614
615 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
616 ACPI_SERIAL_ASSERT(ibm);
617
618 switch (method) {
619 case ACPI_IBM_METHOD_EVENTS:
620 if (arg < 0 || arg > 1)
621 return (EINVAL);
622
623 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg);
624 if (ACPI_FAILURE(status))
625 return (status);
626 if (sc->events_mask_supported)
627 return acpi_ibm_eventmask_set(sc, sc->events_availmask);
628 break;
629
630 case ACPI_IBM_METHOD_EVENTMASK:
631 if (sc->events_mask_supported)
632 return acpi_ibm_eventmask_set(sc, arg);
633 break;
634
635 case ACPI_IBM_METHOD_BRIGHTNESS:
636 if (arg < 0 || arg > 7)
637 return (EINVAL);
638
639 if (sc->cmos_handle) {
640 /* Read the current brightness */
641 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
642 if (ACPI_FAILURE(status))
643 return (status);
644 val = val_ec & IBM_EC_MASK_BRI;
645
646 Args.Count = 1;
647 Args.Pointer = &Arg;
648 Arg.Type = ACPI_TYPE_INTEGER;
649 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : IBM_CMOS_BRIGHTNESS_DOWN;
650
651 step = (arg > val) ? 1 : -1;
652 for (int i = val; i != arg; i += step) {
653 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
654 if (ACPI_FAILURE(status))
655 break;
656 }
657 }
658 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1);
659 break;
660
661 case ACPI_IBM_METHOD_VOLUME:
662 if (arg < 0 || arg > 14)
663 return (EINVAL);
664
665 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
666 if (ACPI_FAILURE(status))
667 return (status);
668
669 if (sc->cmos_handle) {
670 val = val_ec & IBM_EC_MASK_VOL;
671
672 Args.Count = 1;
673 Args.Pointer = &Arg;
674 Arg.Type = ACPI_TYPE_INTEGER;
675 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : IBM_CMOS_VOLUME_DOWN;
676
677 step = (arg > val) ? 1 : -1;
678 for (int i = val; i != arg; i += step) {
679 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
680 if (ACPI_FAILURE(status))
681 break;
682 }
683 }
684 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, arg + (val_ec & (~IBM_EC_MASK_VOL)), 1);
685 break;
686
687 case ACPI_IBM_METHOD_MUTE:
688 if (arg < 0 || arg > 1)
689 return (EINVAL);
690
691 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
692 if (ACPI_FAILURE(status))
693 return (status);
694
695 if (sc->cmos_handle) {
696 val = val_ec & IBM_EC_MASK_VOL;
697
698 Args.Count = 1;
699 Args.Pointer = &Arg;
700 Arg.Type = ACPI_TYPE_INTEGER;
701 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE;
702
703 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
704 if (ACPI_FAILURE(status))
705 break;
706 }
707 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);
708 break;
709
710 case ACPI_IBM_METHOD_THINKLIGHT:
711 if (arg < 0 || arg > 1)
712 return (EINVAL);
713
714 if (sc->light_set_supported) {
715 Args.Count = 1;
716 Args.Pointer = &Arg;
717 Arg.Type = ACPI_TYPE_INTEGER;
718 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
719
720 status = AcpiEvaluateObject(sc->light_handle, NULL, &Args, NULL);
721 if (ACPI_SUCCESS(status))
722 sc->light_val = arg;
723 return (status);
724 }
725 break;
726
727 case ACPI_IBM_METHOD_BLUETOOTH:
728 if (arg < 0 || arg > 1)
729 return (EINVAL);
730
731 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : sc->wlan_bt_flags & (~IBM_NAME_MASK_BT);
732 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val);
733 break;
734 }
735
736 return (0);
737}
738
739static int
740acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method)
741{
742 int dummy;
743 ACPI_OBJECT_TYPE cmos_t;
744 ACPI_HANDLE ledb_handle;
745
746 switch (method) {
747 case ACPI_IBM_METHOD_EVENTS:
748 /* Events are disabled by default */
749 return (TRUE);
750
751 case ACPI_IBM_METHOD_EVENTMASK:
752 return (sc->events_mask_supported);
753
754 case ACPI_IBM_METHOD_HOTKEY:
755 case ACPI_IBM_METHOD_BRIGHTNESS:
756 case ACPI_IBM_METHOD_VOLUME:
757 case ACPI_IBM_METHOD_MUTE:
758 /* EC is required here, which was aready checked before */
759 return (TRUE);
760
761 case ACPI_IBM_METHOD_THINKLIGHT:
762 sc->cmos_handle = NULL;
763 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &dummy));
764
765 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) ||
766 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) ||
767 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) &&
768 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
769 cmos_t == ACPI_TYPE_METHOD) {
770 sc->light_cmd_on = 0x0c;
771 sc->light_cmd_off = 0x0d;
772 sc->cmos_handle = sc->light_handle;
773 }
774 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) {
775 sc->light_cmd_on = 1;
776 sc->light_cmd_off = 0;
777 }
778 else
779 sc->light_handle = NULL;
780
781 sc->light_set_supported = (sc->light_handle &&
782 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle)));
783
784 if (sc->light_get_supported || sc->light_set_supported) {
785 sc->light_val = 0;
786 return (TRUE);
787 }
788 else
789 return (FALSE);
790
791 case ACPI_IBM_METHOD_BLUETOOTH:
792 case ACPI_IBM_METHOD_WLAN:
793 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy)))
794 return (TRUE);
795 return (FALSE);
796
797 case ACPI_IBM_METHOD_FANSPEED:
798 /*
799 * Some models report the fan speed in levels from 0-7
800 * Newer models report it contiguously
801 */
802 sc->fan_levels =
803 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) ||
804 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle)));
805 return (TRUE);
806
807 case ACPI_IBM_METHOD_FANSTATUS:
808 /*
809 * Fan status is only supported on those models,
810 * which report fan RPM contiguously, not in levels
811 */
812 if (sc->fan_levels)
813 return (FALSE);
814 return (TRUE);
815
816 case ACPI_IBM_METHOD_THERMAL:
817 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) {
818 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy));
819 return (TRUE);
820 }
821 return (FALSE);
822 }
823 return (FALSE);
824}
825
826static int
827acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS)
828{
829 struct acpi_ibm_softc *sc;
830 int error = 0;
831 char temp_cmd[] = "TMP0";
832 int temp[8];
833
834 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
835
836 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
837
838 ACPI_SERIAL_BEGIN(ibm);
839
840 for (int i = 0; i < 8; ++i) {
841 temp_cmd[3] = '0' + i;
842
843 /*
844 * The TMPx methods seem to return +/- 128 or 0
845 * when the respecting sensor is not available
846 */
847 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
848 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0)
849 temp[i] = -1;
850 else if (sc->thermal_updt_supported)
851 /* Temperature is reported in tenth of Kelvin */
852 temp[i] = (temp[i] - 2732 + 5) / 10;
853 }
854
855 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req);
856
857 ACPI_SERIAL_END(ibm);
858 return (error);
859}
860
861static void
862acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context)
863{
864 int event, arg, type;
865 device_t dev = context;
866 struct acpi_ibm_softc *sc = device_get_softc(dev);
867
868 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
869
870 printf("IBM:NOTIFY:%x\n", notify);
871 if (notify != 0x80)
872 printf("Unknown notify\n");
873
874 for (;;) {
875 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event);
876
877 if (event == 0)
878 break;
879
880 printf("notify:%x\n", event);
881
882 type = (event >> 12) & 0xf;
883 arg = event & 0xfff;
884 switch (type) {
885 case 1:
886 if (!(sc->events_availmask & (1 << (arg - 1)))) {
887 printf("Unknown key %d\n", arg);
888 break;
889 }
890
891 /* Notify devd(8) */
892 acpi_UserNotify("IBM", h, (arg & 0xff));
893 break;
894 default:
895 break;
896 }
897 }
898}
| 46#include "acpi_if.h"
47#include <sys/module.h>
48#include <dev/acpica/acpivar.h>
49#include <dev/led/led.h>
50#include <sys/sysctl.h>
51#include <machine/clock.h>
52
53#define _COMPONENT ACPI_OEM
54ACPI_MODULE_NAME("IBM")
55
56/* Internal methods */
57#define ACPI_IBM_METHOD_EVENTS 1
58#define ACPI_IBM_METHOD_EVENTMASK 2
59#define ACPI_IBM_METHOD_HOTKEY 3
60#define ACPI_IBM_METHOD_BRIGHTNESS 4
61#define ACPI_IBM_METHOD_VOLUME 5
62#define ACPI_IBM_METHOD_MUTE 6
63#define ACPI_IBM_METHOD_THINKLIGHT 7
64#define ACPI_IBM_METHOD_BLUETOOTH 8
65#define ACPI_IBM_METHOD_WLAN 9
66#define ACPI_IBM_METHOD_FANSPEED 10
67#define ACPI_IBM_METHOD_FANSTATUS 11
68#define ACPI_IBM_METHOD_THERMAL 12
69
70/* Hotkeys/Buttons */
71#define IBM_RTC_HOTKEY1 0x64
72#define IBM_RTC_MASK_HOME (1 << 0)
73#define IBM_RTC_MASK_SEARCH (1 << 1)
74#define IBM_RTC_MASK_MAIL (1 << 2)
75#define IBM_RTC_MASK_WLAN (1 << 5)
76#define IBM_RTC_HOTKEY2 0x65
77#define IBM_RTC_MASK_THINKPAD (1 << 3)
78#define IBM_RTC_MASK_ZOOM (1 << 5)
79#define IBM_RTC_MASK_VIDEO (1 << 6)
80#define IBM_RTC_MASK_HIBERNATE (1 << 7)
81#define IBM_RTC_THINKLIGHT 0x66
82#define IBM_RTC_MASK_THINKLIGHT (1 << 4)
83#define IBM_RTC_SCREENEXPAND 0x67
84#define IBM_RTC_MASK_SCREENEXPAND (1 << 5)
85#define IBM_RTC_BRIGHTNESS 0x6c
86#define IBM_RTC_MASK_BRIGHTNESS (1 << 5)
87#define IBM_RTC_VOLUME 0x6e
88#define IBM_RTC_MASK_VOLUME (1 << 7)
89
90/* Embedded Controller registers */
91#define IBM_EC_BRIGHTNESS 0x31
92#define IBM_EC_MASK_BRI 0x7
93#define IBM_EC_VOLUME 0x30
94#define IBM_EC_MASK_VOL 0xf
95#define IBM_EC_MASK_MUTE (1 << 6)
96#define IBM_EC_FANSTATUS 0x2F
97#define IBM_EC_MASK_FANSTATUS (1 << 7)
98#define IBM_EC_FANSPEED 0x84
99
100/* CMOS Commands */
101#define IBM_CMOS_VOLUME_DOWN 0
102#define IBM_CMOS_VOLUME_UP 1
103#define IBM_CMOS_VOLUME_MUTE 2
104#define IBM_CMOS_BRIGHTNESS_UP 4
105#define IBM_CMOS_BRIGHTNESS_DOWN 5
106
107/* ACPI methods */
108#define IBM_NAME_KEYLIGHT "KBLT"
109#define IBM_NAME_WLAN_BT_GET "GBDC"
110#define IBM_NAME_WLAN_BT_SET "SBDC"
111#define IBM_NAME_MASK_BT (1 << 1)
112#define IBM_NAME_MASK_WLAN (1 << 2)
113#define IBM_NAME_THERMAL_GET "TMP7"
114#define IBM_NAME_THERMAL_UPDT "UPDT"
115
116#define IBM_NAME_EVENTS_STATUS_GET "DHKC"
117#define IBM_NAME_EVENTS_MASK_GET "DHKN"
118#define IBM_NAME_EVENTS_STATUS_SET "MHKC"
119#define IBM_NAME_EVENTS_MASK_SET "MHKM"
120#define IBM_NAME_EVENTS_GET "MHKP"
121#define IBM_NAME_EVENTS_AVAILMASK "MHKA"
122
123#define ABS(x) (((x) < 0)? -(x) : (x))
124
125struct acpi_ibm_softc {
126 device_t dev;
127 ACPI_HANDLE handle;
128
129 /* Embedded controller */
130 device_t ec_dev;
131 ACPI_HANDLE ec_handle;
132
133 /* CMOS */
134 ACPI_HANDLE cmos_handle;
135
136 /* Fan status */
137 ACPI_HANDLE fan_handle;
138 int fan_levels;
139
140 /* Keylight commands and states */
141 ACPI_HANDLE light_handle;
142 int light_cmd_on;
143 int light_cmd_off;
144 int light_val;
145 int light_get_supported;
146 int light_set_supported;
147
148 /* led(4) interface */
149 struct cdev *led_dev;
150 int led_busy;
151 int led_state;
152
153 int wlan_bt_flags;
154 int thermal_updt_supported;
155
156 unsigned int events_availmask;
157 unsigned int events_initialmask;
158 int events_mask_supported;
159 int events_enable;
160
161 struct sysctl_ctx_list *sysctl_ctx;
162 struct sysctl_oid *sysctl_tree;
163};
164
165static struct {
166 char *name;
167 int method;
168 char *description;
169 int access;
170} acpi_ibm_sysctls[] = {
171 {
172 .name = "events",
173 .method = ACPI_IBM_METHOD_EVENTS,
174 .description = "ACPI events enable",
175 .access = CTLTYPE_INT | CTLFLAG_RW
176 },
177 {
178 .name = "eventmask",
179 .method = ACPI_IBM_METHOD_EVENTMASK,
180 .description = "ACPI eventmask",
181 .access = CTLTYPE_INT | CTLFLAG_RW
182 },
183 {
184 .name = "hotkey",
185 .method = ACPI_IBM_METHOD_HOTKEY,
186 .description = "Key Status",
187 .access = CTLTYPE_INT | CTLFLAG_RD
188 },
189 {
190 .name = "lcd_brightness",
191 .method = ACPI_IBM_METHOD_BRIGHTNESS,
192 .description = "LCD Brightness",
193 .access = CTLTYPE_INT | CTLFLAG_RW
194 },
195 {
196 .name = "volume",
197 .method = ACPI_IBM_METHOD_VOLUME,
198 .description = "Volume",
199 .access = CTLTYPE_INT | CTLFLAG_RW
200 },
201 {
202 .name = "mute",
203 .method = ACPI_IBM_METHOD_MUTE,
204 .description = "Mute",
205 .access = CTLTYPE_INT | CTLFLAG_RW
206 },
207 {
208 .name = "thinklight",
209 .method = ACPI_IBM_METHOD_THINKLIGHT,
210 .description = "Thinklight enable",
211 .access = CTLTYPE_INT | CTLFLAG_RW
212 },
213 {
214 .name = "bluetooth",
215 .method = ACPI_IBM_METHOD_BLUETOOTH,
216 .description = "Bluetooth enable",
217 .access = CTLTYPE_INT | CTLFLAG_RW
218 },
219 {
220 .name = "wlan",
221 .method = ACPI_IBM_METHOD_WLAN,
222 .description = "WLAN enable",
223 .access = CTLTYPE_INT | CTLFLAG_RD
224 },
225 {
226 .name = "fan_speed",
227 .method = ACPI_IBM_METHOD_FANSPEED,
228 .description = "Fan speed",
229 .access = CTLTYPE_INT | CTLFLAG_RD
230 },
231 {
232 .name = "fan",
233 .method = ACPI_IBM_METHOD_FANSTATUS,
234 .description = "Fan enable",
235 .access = CTLTYPE_INT | CTLFLAG_RD
236 },
237
238 { NULL, 0, NULL, 0 }
239};
240
241ACPI_SERIAL_DECL(ibm, "ACPI IBM extras");
242
243static int acpi_ibm_probe(device_t dev);
244static int acpi_ibm_attach(device_t dev);
245static int acpi_ibm_detach(device_t dev);
246
247static void ibm_led(void *softc, int onoff);
248static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused);
249
250static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS);
251static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method);
252static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method);
253static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val);
254
255static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val);
256static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS);
257static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context);
258
259static device_method_t acpi_ibm_methods[] = {
260 /* Device interface */
261 DEVMETHOD(device_probe, acpi_ibm_probe),
262 DEVMETHOD(device_attach, acpi_ibm_attach),
263 DEVMETHOD(device_detach, acpi_ibm_detach),
264
265 {0, 0}
266};
267
268static driver_t acpi_ibm_driver = {
269 "acpi_ibm",
270 acpi_ibm_methods,
271 sizeof(struct acpi_ibm_softc),
272};
273
274static devclass_t acpi_ibm_devclass;
275
276DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass,
277 0, 0);
278MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1);
279static char *ibm_ids[] = {"IBM0057", "IBM0068", NULL};
280
281static void
282ibm_led(void *softc, int onoff)
283{
284 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc;
285
286 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
287
288 if (sc->led_busy)
289 return;
290
291 sc->led_busy = 1;
292 sc->led_state = onoff;
293
294 AcpiOsQueueForExecution(OSD_PRIORITY_LO,
295 (void *)ibm_led_task, sc);
296}
297
298static void
299ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused)
300{
301 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
302
303 ACPI_SERIAL_BEGIN(ibm);
304 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state);
305 ACPI_SERIAL_END(ibm);
306
307 sc->led_busy = 0;
308}
309
310static int
311acpi_ibm_probe(device_t dev)
312{
313 if (acpi_disabled("ibm") ||
314 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL ||
315 device_get_unit(dev) != 0)
316 return (ENXIO);
317
318 device_set_desc(dev, "IBM ThinkPad ACPI Extras");
319
320 return (0);
321}
322
323static int
324acpi_ibm_attach(device_t dev)
325{
326 struct acpi_ibm_softc *sc;
327 struct acpi_softc *acpi_sc;
328 devclass_t ec_devclass;
329
330 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
331
332 sc = device_get_softc(dev);
333 sc->dev = dev;
334 sc->handle = acpi_get_handle(dev);
335
336 acpi_sc = acpi_device_get_parent_softc(dev);
337
338 /* Look for the first embedded controller */
339 if (!(ec_devclass = devclass_find ("acpi_ec"))) {
340 if (bootverbose)
341 device_printf(dev, "Couldn't find acpi_ec devclass\n");
342 return (EINVAL);
343 }
344 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
345 if (bootverbose)
346 device_printf(dev, "Couldn't find acpi_ec device\n");
347 return (EINVAL);
348 }
349 sc->ec_handle = acpi_get_handle(sc->ec_dev);
350
351 ACPI_SERIAL_BEGIN(ibm);
352
353 /* Get the sysctl tree */
354 sc->sysctl_ctx = device_get_sysctl_ctx(dev);
355 sc->sysctl_tree = device_get_sysctl_tree(dev);
356
357 /* Look for event mask and hook up the nodes */
358 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
359 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
360
361 if (sc->events_mask_supported) {
362 SYSCTL_ADD_INT(sc->sysctl_ctx,
363 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
364 "initialmask", CTLFLAG_RD,
365 &sc->events_initialmask, 0, "Initial eventmask");
366
367 /* The availmask is the bitmask of supported events */
368 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
369 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
370 sc->events_availmask = 0xffffffff;
371
372 SYSCTL_ADD_INT(sc->sysctl_ctx,
373 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
374 "availmask", CTLFLAG_RD,
375 &sc->events_availmask, 0, "Mask of supported events");
376 }
377
378 /* Hook up proc nodes */
379 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
380 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method))
381 continue;
382
383 SYSCTL_ADD_PROC(sc->sysctl_ctx,
384 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
385 acpi_ibm_sysctls[i].name, acpi_ibm_sysctls[i].access,
386 sc, i, acpi_ibm_sysctl, "I",
387 acpi_ibm_sysctls[i].description);
388 }
389
390 /* Hook up thermal node */
391 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) {
392 SYSCTL_ADD_PROC(sc->sysctl_ctx,
393 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
394 "thermal", CTLTYPE_STRING | CTLFLAG_RD,
395 sc, 0, acpi_ibm_thermal_sysctl, "I",
396 "Thermal zones");
397 }
398
399 ACPI_SERIAL_END(ibm);
400
401 /* Handle notifies */
402 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
403 acpi_ibm_notify, dev);
404
405 /* Hook up light to led(4) */
406 if (sc->light_set_supported)
407 sc->led_dev = led_create(ibm_led, sc, "thinklight");
408
409 return (0);
410}
411
412static int
413acpi_ibm_detach(device_t dev)
414{
415 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
416
417 struct acpi_ibm_softc *sc = device_get_softc(dev);
418
419 /* Disable events and restore eventmask */
420 ACPI_SERIAL_BEGIN(ibm);
421 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0);
422 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask);
423 ACPI_SERIAL_END(ibm);
424
425 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify);
426
427 if (sc->led_dev != NULL)
428 led_destroy(sc->led_dev);
429
430 return (0);
431}
432
433static int
434acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val)
435{
436 ACPI_OBJECT arg[2];
437 ACPI_OBJECT_LIST args;
438 ACPI_STATUS status;
439
440 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
441 ACPI_SERIAL_ASSERT(ibm);
442
443 args.Count = 2;
444 args.Pointer = arg;
445 arg[0].Type = ACPI_TYPE_INTEGER;
446 arg[1].Type = ACPI_TYPE_INTEGER;
447
448 for (int i = 0; i < 32; ++i) {
449 arg[0].Integer.Value = i+1;
450 arg[1].Integer.Value = (((1 << i) & val) != 0);
451 status = AcpiEvaluateObject(sc->handle,
452 IBM_NAME_EVENTS_MASK_SET, &args, NULL);
453
454 if (ACPI_FAILURE(status))
455 return (status);
456 }
457
458 return (0);
459}
460
461static int
462acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS)
463{
464 struct acpi_ibm_softc *sc;
465 int arg;
466 int error = 0;
467 int function;
468 int method;
469
470 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
471
472 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
473 function = oidp->oid_arg2;
474 method = acpi_ibm_sysctls[function].method;
475
476 ACPI_SERIAL_BEGIN(ibm);
477 arg = acpi_ibm_sysctl_get(sc, method);
478 error = sysctl_handle_int(oidp, &arg, 0, req);
479
480 /* Sanity check */
481 if (error != 0 || req->newptr == NULL)
482 goto out;
483
484 /* Update */
485 error = acpi_ibm_sysctl_set(sc, method, arg);
486
487out:
488 ACPI_SERIAL_END(ibm);
489 return (error);
490}
491
492static int
493acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method)
494{
495 ACPI_INTEGER val_ec;
496 int val = 0, key;
497
498 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
499 ACPI_SERIAL_ASSERT(ibm);
500
501 switch (method) {
502 case ACPI_IBM_METHOD_EVENTS:
503 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val);
504 break;
505
506 case ACPI_IBM_METHOD_EVENTMASK:
507 if (sc->events_mask_supported)
508 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val);
509 break;
510
511 case ACPI_IBM_METHOD_HOTKEY:
512 /*
513 * Construct the hotkey as a bitmask as illustrated below.
514 * Note that whenever a key was pressed, the respecting bit
515 * toggles and nothing else changes.
516 * +--+--+-+-+-+-+-+-+-+-+-+-+
517 * |11|10|9|8|7|6|5|4|3|2|1|0|
518 * +--+--+-+-+-+-+-+-+-+-+-+-+
519 * | | | | | | | | | | | |
520 * | | | | | | | | | | | +- Home Button
521 * | | | | | | | | | | +--- Search Button
522 * | | | | | | | | | +----- Mail Button
523 * | | | | | | | | +------- Thinkpad Button
524 * | | | | | | | +--------- Zoom (Fn + Space)
525 * | | | | | | +----------- WLAN Button
526 * | | | | | +------------- Video Button
527 * | | | | +--------------- Hibernate Button
528 * | | | +----------------- Thinklight Button
529 * | | +------------------- Screen expand (Fn + F8)
530 * | +--------------------- Brightness
531 * +------------------------ Volume/Mute
532 */
533 key = rtcin(IBM_RTC_HOTKEY1);
534 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key;
535 key = rtcin(IBM_RTC_HOTKEY2);
536 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key;
537 val |= (IBM_RTC_MASK_ZOOM & key) >> 1;
538 key = rtcin(IBM_RTC_THINKLIGHT);
539 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
540 key = rtcin(IBM_RTC_SCREENEXPAND);
541 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
542 key = rtcin(IBM_RTC_BRIGHTNESS);
543 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5;
544 key = rtcin(IBM_RTC_VOLUME);
545 val |= (IBM_RTC_MASK_VOLUME & key) << 4;
546 break;
547
548 case ACPI_IBM_METHOD_BRIGHTNESS:
549 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
550 val = val_ec & IBM_EC_MASK_BRI;
551 break;
552
553 case ACPI_IBM_METHOD_VOLUME:
554 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
555 val = val_ec & IBM_EC_MASK_VOL;
556 break;
557
558 case ACPI_IBM_METHOD_MUTE:
559 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
560 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
561 break;
562
563 case ACPI_IBM_METHOD_THINKLIGHT:
564 if (sc->light_get_supported)
565 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val);
566 else
567 val = sc->light_val;
568 break;
569
570 case ACPI_IBM_METHOD_BLUETOOTH:
571 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
572 sc->wlan_bt_flags = val;
573 val = ((val & IBM_NAME_MASK_BT) != 0);
574 break;
575
576 case ACPI_IBM_METHOD_WLAN:
577 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
578 sc->wlan_bt_flags = val;
579 val = ((val & IBM_NAME_MASK_WLAN) != 0);
580 break;
581
582 case ACPI_IBM_METHOD_FANSPEED:
583 if (sc->fan_handle) {
584 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val)))
585 val = -1;
586 }
587 else {
588 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2);
589 val = val_ec;
590 }
591 break;
592
593 case ACPI_IBM_METHOD_FANSTATUS:
594 if (!sc->fan_handle) {
595 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
596 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS;
597 }
598 else
599 val = -1;
600 break;
601 }
602
603 return (val);
604}
605
606static int
607acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg)
608{
609 int val, step;
610 ACPI_INTEGER val_ec;
611 ACPI_OBJECT Arg;
612 ACPI_OBJECT_LIST Args;
613 ACPI_STATUS status;
614
615 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
616 ACPI_SERIAL_ASSERT(ibm);
617
618 switch (method) {
619 case ACPI_IBM_METHOD_EVENTS:
620 if (arg < 0 || arg > 1)
621 return (EINVAL);
622
623 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg);
624 if (ACPI_FAILURE(status))
625 return (status);
626 if (sc->events_mask_supported)
627 return acpi_ibm_eventmask_set(sc, sc->events_availmask);
628 break;
629
630 case ACPI_IBM_METHOD_EVENTMASK:
631 if (sc->events_mask_supported)
632 return acpi_ibm_eventmask_set(sc, arg);
633 break;
634
635 case ACPI_IBM_METHOD_BRIGHTNESS:
636 if (arg < 0 || arg > 7)
637 return (EINVAL);
638
639 if (sc->cmos_handle) {
640 /* Read the current brightness */
641 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
642 if (ACPI_FAILURE(status))
643 return (status);
644 val = val_ec & IBM_EC_MASK_BRI;
645
646 Args.Count = 1;
647 Args.Pointer = &Arg;
648 Arg.Type = ACPI_TYPE_INTEGER;
649 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP : IBM_CMOS_BRIGHTNESS_DOWN;
650
651 step = (arg > val) ? 1 : -1;
652 for (int i = val; i != arg; i += step) {
653 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
654 if (ACPI_FAILURE(status))
655 break;
656 }
657 }
658 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1);
659 break;
660
661 case ACPI_IBM_METHOD_VOLUME:
662 if (arg < 0 || arg > 14)
663 return (EINVAL);
664
665 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
666 if (ACPI_FAILURE(status))
667 return (status);
668
669 if (sc->cmos_handle) {
670 val = val_ec & IBM_EC_MASK_VOL;
671
672 Args.Count = 1;
673 Args.Pointer = &Arg;
674 Arg.Type = ACPI_TYPE_INTEGER;
675 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP : IBM_CMOS_VOLUME_DOWN;
676
677 step = (arg > val) ? 1 : -1;
678 for (int i = val; i != arg; i += step) {
679 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
680 if (ACPI_FAILURE(status))
681 break;
682 }
683 }
684 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, arg + (val_ec & (~IBM_EC_MASK_VOL)), 1);
685 break;
686
687 case ACPI_IBM_METHOD_MUTE:
688 if (arg < 0 || arg > 1)
689 return (EINVAL);
690
691 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
692 if (ACPI_FAILURE(status))
693 return (status);
694
695 if (sc->cmos_handle) {
696 val = val_ec & IBM_EC_MASK_VOL;
697
698 Args.Count = 1;
699 Args.Pointer = &Arg;
700 Arg.Type = ACPI_TYPE_INTEGER;
701 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE;
702
703 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
704 if (ACPI_FAILURE(status))
705 break;
706 }
707 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);
708 break;
709
710 case ACPI_IBM_METHOD_THINKLIGHT:
711 if (arg < 0 || arg > 1)
712 return (EINVAL);
713
714 if (sc->light_set_supported) {
715 Args.Count = 1;
716 Args.Pointer = &Arg;
717 Arg.Type = ACPI_TYPE_INTEGER;
718 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
719
720 status = AcpiEvaluateObject(sc->light_handle, NULL, &Args, NULL);
721 if (ACPI_SUCCESS(status))
722 sc->light_val = arg;
723 return (status);
724 }
725 break;
726
727 case ACPI_IBM_METHOD_BLUETOOTH:
728 if (arg < 0 || arg > 1)
729 return (EINVAL);
730
731 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT : sc->wlan_bt_flags & (~IBM_NAME_MASK_BT);
732 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val);
733 break;
734 }
735
736 return (0);
737}
738
739static int
740acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method)
741{
742 int dummy;
743 ACPI_OBJECT_TYPE cmos_t;
744 ACPI_HANDLE ledb_handle;
745
746 switch (method) {
747 case ACPI_IBM_METHOD_EVENTS:
748 /* Events are disabled by default */
749 return (TRUE);
750
751 case ACPI_IBM_METHOD_EVENTMASK:
752 return (sc->events_mask_supported);
753
754 case ACPI_IBM_METHOD_HOTKEY:
755 case ACPI_IBM_METHOD_BRIGHTNESS:
756 case ACPI_IBM_METHOD_VOLUME:
757 case ACPI_IBM_METHOD_MUTE:
758 /* EC is required here, which was aready checked before */
759 return (TRUE);
760
761 case ACPI_IBM_METHOD_THINKLIGHT:
762 sc->cmos_handle = NULL;
763 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &dummy));
764
765 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) ||
766 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) ||
767 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) &&
768 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
769 cmos_t == ACPI_TYPE_METHOD) {
770 sc->light_cmd_on = 0x0c;
771 sc->light_cmd_off = 0x0d;
772 sc->cmos_handle = sc->light_handle;
773 }
774 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) {
775 sc->light_cmd_on = 1;
776 sc->light_cmd_off = 0;
777 }
778 else
779 sc->light_handle = NULL;
780
781 sc->light_set_supported = (sc->light_handle &&
782 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle)));
783
784 if (sc->light_get_supported || sc->light_set_supported) {
785 sc->light_val = 0;
786 return (TRUE);
787 }
788 else
789 return (FALSE);
790
791 case ACPI_IBM_METHOD_BLUETOOTH:
792 case ACPI_IBM_METHOD_WLAN:
793 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy)))
794 return (TRUE);
795 return (FALSE);
796
797 case ACPI_IBM_METHOD_FANSPEED:
798 /*
799 * Some models report the fan speed in levels from 0-7
800 * Newer models report it contiguously
801 */
802 sc->fan_levels =
803 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) ||
804 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle)));
805 return (TRUE);
806
807 case ACPI_IBM_METHOD_FANSTATUS:
808 /*
809 * Fan status is only supported on those models,
810 * which report fan RPM contiguously, not in levels
811 */
812 if (sc->fan_levels)
813 return (FALSE);
814 return (TRUE);
815
816 case ACPI_IBM_METHOD_THERMAL:
817 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) {
818 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy));
819 return (TRUE);
820 }
821 return (FALSE);
822 }
823 return (FALSE);
824}
825
826static int
827acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS)
828{
829 struct acpi_ibm_softc *sc;
830 int error = 0;
831 char temp_cmd[] = "TMP0";
832 int temp[8];
833
834 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
835
836 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
837
838 ACPI_SERIAL_BEGIN(ibm);
839
840 for (int i = 0; i < 8; ++i) {
841 temp_cmd[3] = '0' + i;
842
843 /*
844 * The TMPx methods seem to return +/- 128 or 0
845 * when the respecting sensor is not available
846 */
847 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
848 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0)
849 temp[i] = -1;
850 else if (sc->thermal_updt_supported)
851 /* Temperature is reported in tenth of Kelvin */
852 temp[i] = (temp[i] - 2732 + 5) / 10;
853 }
854
855 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req);
856
857 ACPI_SERIAL_END(ibm);
858 return (error);
859}
860
861static void
862acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context)
863{
864 int event, arg, type;
865 device_t dev = context;
866 struct acpi_ibm_softc *sc = device_get_softc(dev);
867
868 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
869
870 printf("IBM:NOTIFY:%x\n", notify);
871 if (notify != 0x80)
872 printf("Unknown notify\n");
873
874 for (;;) {
875 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event);
876
877 if (event == 0)
878 break;
879
880 printf("notify:%x\n", event);
881
882 type = (event >> 12) & 0xf;
883 arg = event & 0xfff;
884 switch (type) {
885 case 1:
886 if (!(sc->events_availmask & (1 << (arg - 1)))) {
887 printf("Unknown key %d\n", arg);
888 break;
889 }
890
891 /* Notify devd(8) */
892 acpi_UserNotify("IBM", h, (arg & 0xff));
893 break;
894 default:
895 break;
896 }
897 }
898}
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