1 /*-
2 * Copyright (c) 2004 Takanori Watanabe
3 * Copyright (c) 2005 Markus Brueffer <[email protected]>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30
31 /*
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
34 * on Linux.
35 *
36 * acpi-ibm: <http://ibm-acpi.sourceforge.net/>
37 * tpb: <http://www.nongnu.org/tpb/>
38 */
39
40 #include "opt_acpi.h"
41 #include <sys/param.h>
42 #include <sys/systm.h>
43 #include <sys/kernel.h>
44 #include <sys/bus.h>
45 #include <machine/cpufunc.h>
46
47 #include <contrib/dev/acpica/include/acpi.h>
48 #include <contrib/dev/acpica/include/accommon.h>
49
50 #include "acpi_if.h"
51 #include <sys/module.h>
52 #include <dev/acpica/acpivar.h>
53 #include <dev/led/led.h>
54 #include <sys/power.h>
55 #include <sys/sbuf.h>
56 #include <sys/sysctl.h>
57 #include <isa/rtc.h>
58
59 #define _COMPONENT ACPI_OEM
60 ACPI_MODULE_NAME("IBM")
61
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
76 #define ACPI_IBM_METHOD_HANDLEREVENTS 14
77 #define ACPI_IBM_METHOD_MIC_LED 15
78
79 /* Hotkeys/Buttons */
80 #define IBM_RTC_HOTKEY1 0x64
81 #define IBM_RTC_MASK_HOME (1 << 0)
82 #define IBM_RTC_MASK_SEARCH (1 << 1)
83 #define IBM_RTC_MASK_MAIL (1 << 2)
84 #define IBM_RTC_MASK_WLAN (1 << 5)
85 #define IBM_RTC_HOTKEY2 0x65
86 #define IBM_RTC_MASK_THINKPAD (1 << 3)
87 #define IBM_RTC_MASK_ZOOM (1 << 5)
88 #define IBM_RTC_MASK_VIDEO (1 << 6)
89 #define IBM_RTC_MASK_HIBERNATE (1 << 7)
90 #define IBM_RTC_THINKLIGHT 0x66
91 #define IBM_RTC_MASK_THINKLIGHT (1 << 4)
92 #define IBM_RTC_SCREENEXPAND 0x67
93 #define IBM_RTC_MASK_SCREENEXPAND (1 << 5)
94 #define IBM_RTC_BRIGHTNESS 0x6c
95 #define IBM_RTC_MASK_BRIGHTNESS (1 << 5)
96 #define IBM_RTC_VOLUME 0x6e
97 #define IBM_RTC_MASK_VOLUME (1 << 7)
98
99 /* Embedded Controller registers */
100 #define IBM_EC_BRIGHTNESS 0x31
101 #define IBM_EC_MASK_BRI 0x7
102 #define IBM_EC_VOLUME 0x30
103 #define IBM_EC_MASK_VOL 0xf
104 #define IBM_EC_MASK_MUTE (1 << 6)
105 #define IBM_EC_FANSTATUS 0x2F
106 #define IBM_EC_MASK_FANLEVEL 0x3f
107 #define IBM_EC_MASK_FANDISENGAGED (1 << 6)
108 #define IBM_EC_MASK_FANSTATUS (1 << 7)
109 #define IBM_EC_FANSPEED 0x84
110
111 /* CMOS Commands */
112 #define IBM_CMOS_VOLUME_DOWN 0
113 #define IBM_CMOS_VOLUME_UP 1
114 #define IBM_CMOS_VOLUME_MUTE 2
115 #define IBM_CMOS_BRIGHTNESS_UP 4
116 #define IBM_CMOS_BRIGHTNESS_DOWN 5
117
118 /* ACPI methods */
119 #define IBM_NAME_KEYLIGHT "KBLT"
120 #define IBM_NAME_WLAN_BT_GET "GBDC"
121 #define IBM_NAME_WLAN_BT_SET "SBDC"
122 #define IBM_NAME_MASK_BT (1 << 1)
123 #define IBM_NAME_MASK_WLAN (1 << 2)
124 #define IBM_NAME_THERMAL_GET "TMP7"
125 #define IBM_NAME_THERMAL_UPDT "UPDT"
126
127 #define IBM_NAME_EVENTS_STATUS_GET "DHKC"
128 #define IBM_NAME_EVENTS_MASK_GET "DHKN"
129 #define IBM_NAME_EVENTS_STATUS_SET "MHKC"
130 #define IBM_NAME_EVENTS_MASK_SET "MHKM"
131 #define IBM_NAME_EVENTS_GET "MHKP"
132 #define IBM_NAME_EVENTS_AVAILMASK "MHKA"
133
134 /* Event Code */
135 #define IBM_EVENT_LCD_BACKLIGHT 0x03
136 #define IBM_EVENT_SUSPEND_TO_RAM 0x04
137 #define IBM_EVENT_BLUETOOTH 0x05
138 #define IBM_EVENT_SCREEN_EXPAND 0x07
139 #define IBM_EVENT_SUSPEND_TO_DISK 0x0c
140 #define IBM_EVENT_BRIGHTNESS_UP 0x10
141 #define IBM_EVENT_BRIGHTNESS_DOWN 0x11
142 #define IBM_EVENT_THINKLIGHT 0x12
143 #define IBM_EVENT_ZOOM 0x14
144 #define IBM_EVENT_VOLUME_UP 0x15
145 #define IBM_EVENT_VOLUME_DOWN 0x16
146 #define IBM_EVENT_MUTE 0x17
147 #define IBM_EVENT_ACCESS_IBM_BUTTON 0x18
148
149 #define ABS(x) (((x) < 0)? -(x) : (x))
150
151 struct acpi_ibm_softc {
152 device_t dev;
153 ACPI_HANDLE handle;
154
155 /* Embedded controller */
156 device_t ec_dev;
157 ACPI_HANDLE ec_handle;
158
159 /* CMOS */
160 ACPI_HANDLE cmos_handle;
161
162 /* Fan status */
163 ACPI_HANDLE fan_handle;
164 int fan_levels;
165
166 /* Keylight commands and states */
167 ACPI_HANDLE light_handle;
168 int light_cmd_on;
169 int light_cmd_off;
170 int light_val;
171 int light_get_supported;
172 int light_set_supported;
173
174 /* led(4) interface */
175 struct cdev *led_dev;
176 int led_busy;
177 int led_state;
178
179 /* Mic led handle */
180 ACPI_HANDLE mic_led_handle;
181 int mic_led_state;
182
183 int wlan_bt_flags;
184 int thermal_updt_supported;
185
186 unsigned int events_availmask;
187 unsigned int events_initialmask;
188 int events_mask_supported;
189 int events_enable;
190
191 unsigned int handler_events;
192
193 struct sysctl_ctx_list *sysctl_ctx;
194 struct sysctl_oid *sysctl_tree;
195 };
196
197 static struct {
198 char *name;
199 int method;
200 char *description;
201 int flag_rdonly;
202 } acpi_ibm_sysctls[] = {
203 {
204 .name = "events",
205 .method = ACPI_IBM_METHOD_EVENTS,
206 .description = "ACPI events enable",
207 },
208 {
209 .name = "eventmask",
210 .method = ACPI_IBM_METHOD_EVENTMASK,
211 .description = "ACPI eventmask",
212 },
213 {
214 .name = "hotkey",
215 .method = ACPI_IBM_METHOD_HOTKEY,
216 .description = "Key Status",
217 .flag_rdonly = 1
218 },
219 {
220 .name = "lcd_brightness",
221 .method = ACPI_IBM_METHOD_BRIGHTNESS,
222 .description = "LCD Brightness",
223 },
224 {
225 .name = "volume",
226 .method = ACPI_IBM_METHOD_VOLUME,
227 .description = "Volume",
228 },
229 {
230 .name = "mute",
231 .method = ACPI_IBM_METHOD_MUTE,
232 .description = "Mute",
233 },
234 {
235 .name = "thinklight",
236 .method = ACPI_IBM_METHOD_THINKLIGHT,
237 .description = "Thinklight enable",
238 },
239 {
240 .name = "bluetooth",
241 .method = ACPI_IBM_METHOD_BLUETOOTH,
242 .description = "Bluetooth enable",
243 },
244 {
245 .name = "wlan",
246 .method = ACPI_IBM_METHOD_WLAN,
247 .description = "WLAN enable",
248 .flag_rdonly = 1
249 },
250 {
251 .name = "fan_speed",
252 .method = ACPI_IBM_METHOD_FANSPEED,
253 .description = "Fan speed",
254 .flag_rdonly = 1
255 },
256 {
257 .name = "fan_level",
258 .method = ACPI_IBM_METHOD_FANLEVEL,
259 .description = "Fan level",
260 },
261 {
262 .name = "fan",
263 .method = ACPI_IBM_METHOD_FANSTATUS,
264 .description = "Fan enable",
265 },
266 {
267 .name = "mic_led",
268 .method = ACPI_IBM_METHOD_MIC_LED,
269 .description = "Mic led",
270 },
271 { NULL, 0, NULL, 0 }
272 };
273
274 /*
275 * Per-model default list of event mask.
276 */
277 #define ACPI_IBM_HKEY_RFKILL_MASK (1 << 4)
278 #define ACPI_IBM_HKEY_DSWITCH_MASK (1 << 6)
279 #define ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK (1 << 15)
280 #define ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK (1 << 16)
281 #define ACPI_IBM_HKEY_SEARCH_MASK (1 << 18)
282 #define ACPI_IBM_HKEY_MICMUTE_MASK (1 << 26)
283 #define ACPI_IBM_HKEY_SETTINGS_MASK (1 << 28)
284 #define ACPI_IBM_HKEY_VIEWOPEN_MASK (1 << 30)
285 #define ACPI_IBM_HKEY_VIEWALL_MASK (1 << 31)
286
287 struct acpi_ibm_models {
288 const char *maker;
289 const char *product;
290 uint32_t eventmask;
291 } acpi_ibm_models[] = {
292 { "LENOVO", "20BSCTO1WW",
293 ACPI_IBM_HKEY_RFKILL_MASK |
294 ACPI_IBM_HKEY_DSWITCH_MASK |
295 ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK |
296 ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK |
297 ACPI_IBM_HKEY_SEARCH_MASK |
298 ACPI_IBM_HKEY_MICMUTE_MASK |
299 ACPI_IBM_HKEY_SETTINGS_MASK |
300 ACPI_IBM_HKEY_VIEWOPEN_MASK |
301 ACPI_IBM_HKEY_VIEWALL_MASK
302 }
303 };
304
305 ACPI_SERIAL_DECL(ibm, "ACPI IBM extras");
306
307 static int acpi_ibm_probe(device_t dev);
308 static int acpi_ibm_attach(device_t dev);
309 static int acpi_ibm_detach(device_t dev);
310 static int acpi_ibm_resume(device_t dev);
311
312 static void ibm_led(void *softc, int onoff);
313 static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused);
314
315 static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS);
316 static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method);
317 static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method);
318 static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val);
319
320 static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val);
321 static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS);
322 static int acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS);
323 static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context);
324
325 static int acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg);
326 static int acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg);
327 static int acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg);
328 static int acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg);
329 static int acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg);
330
331 static device_method_t acpi_ibm_methods[] = {
332 /* Device interface */
333 DEVMETHOD(device_probe, acpi_ibm_probe),
334 DEVMETHOD(device_attach, acpi_ibm_attach),
335 DEVMETHOD(device_detach, acpi_ibm_detach),
336 DEVMETHOD(device_resume, acpi_ibm_resume),
337
338 DEVMETHOD_END
339 };
340
341 static driver_t acpi_ibm_driver = {
342 "acpi_ibm",
343 acpi_ibm_methods,
344 sizeof(struct acpi_ibm_softc),
345 };
346
347 static devclass_t acpi_ibm_devclass;
348
349 DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass,
350 0, 0);
351 MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1);
352 static char *ibm_ids[] = {"IBM0068", "LEN0068", "LEN0268", NULL};
353
354 static void
ibm_led(void * softc,int onoff)355 ibm_led(void *softc, int onoff)
356 {
357 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc;
358
359 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
360
361 if (sc->led_busy)
362 return;
363
364 sc->led_busy = 1;
365 sc->led_state = onoff;
366
367 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc);
368 }
369
370 static void
ibm_led_task(struct acpi_ibm_softc * sc,int pending __unused)371 ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused)
372 {
373 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
374
375 ACPI_SERIAL_BEGIN(ibm);
376 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state);
377 ACPI_SERIAL_END(ibm);
378
379 sc->led_busy = 0;
380 }
381
382 static int
acpi_ibm_mic_led_set(struct acpi_ibm_softc * sc,int arg)383 acpi_ibm_mic_led_set (struct acpi_ibm_softc *sc, int arg)
384 {
385 ACPI_OBJECT_LIST input;
386 ACPI_OBJECT params[1];
387 ACPI_STATUS status;
388
389 if (arg < 0 || arg > 1)
390 return (EINVAL);
391
392 if (sc->mic_led_handle) {
393 params[0].Type = ACPI_TYPE_INTEGER;
394 params[0].Integer.Value = 0;
395 /* mic led: 0 off, 2 on */
396 if (arg == 1)
397 params[0].Integer.Value = 2;
398
399 input.Pointer = params;
400 input.Count = 1;
401
402 status = AcpiEvaluateObject (sc->handle, "MMTS", &input, NULL);
403 if (ACPI_SUCCESS(status))
404 sc->mic_led_state = arg;
405 return(status);
406 }
407
408 return (0);
409 }
410
411 static int
acpi_ibm_probe(device_t dev)412 acpi_ibm_probe(device_t dev)
413 {
414 if (acpi_disabled("ibm") ||
415 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL ||
416 device_get_unit(dev) != 0)
417 return (ENXIO);
418
419 device_set_desc(dev, "IBM ThinkPad ACPI Extras");
420
421 return (0);
422 }
423
424 static int
acpi_ibm_attach(device_t dev)425 acpi_ibm_attach(device_t dev)
426 {
427 int i;
428 int hkey;
429 struct acpi_ibm_softc *sc;
430 char *maker, *product;
431 ACPI_OBJECT_LIST input;
432 ACPI_OBJECT params[1];
433 ACPI_OBJECT out_obj;
434 ACPI_BUFFER result;
435 devclass_t ec_devclass;
436
437 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
438
439 sc = device_get_softc(dev);
440 sc->dev = dev;
441 sc->handle = acpi_get_handle(dev);
442
443 /* Look for the first embedded controller */
444 if (!(ec_devclass = devclass_find ("acpi_ec"))) {
445 if (bootverbose)
446 device_printf(dev, "Couldn't find acpi_ec devclass\n");
447 return (EINVAL);
448 }
449 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
450 if (bootverbose)
451 device_printf(dev, "Couldn't find acpi_ec device\n");
452 return (EINVAL);
453 }
454 sc->ec_handle = acpi_get_handle(sc->ec_dev);
455
456 /* Get the sysctl tree */
457 sc->sysctl_ctx = device_get_sysctl_ctx(dev);
458 sc->sysctl_tree = device_get_sysctl_tree(dev);
459
460 /* Look for event mask and hook up the nodes */
461 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
462 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
463
464 if (sc->events_mask_supported) {
465 SYSCTL_ADD_UINT(sc->sysctl_ctx,
466 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
467 "initialmask", CTLFLAG_RD,
468 &sc->events_initialmask, 0, "Initial eventmask");
469
470 if (ACPI_SUCCESS (acpi_GetInteger(sc->handle, "MHKV", &hkey))) {
471 device_printf(dev, "Firmware version is 0x%X\n", hkey);
472 switch(hkey >> 8)
473 {
474 case 1:
475 /* The availmask is the bitmask of supported events */
476 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
477 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
478 sc->events_availmask = 0xffffffff;
479 break;
480
481 case 2:
482 result.Length = sizeof(out_obj);
483 result.Pointer = &out_obj;
484 params[0].Type = ACPI_TYPE_INTEGER;
485 params[0].Integer.Value = 1;
486 input.Pointer = params;
487 input.Count = 1;
488
489 sc->events_availmask = 0xffffffff;
490
491 if (ACPI_SUCCESS(AcpiEvaluateObject (sc->handle,
492 IBM_NAME_EVENTS_AVAILMASK, &input, &result)))
493 sc->events_availmask = out_obj.Integer.Value;
494 break;
495 default:
496 device_printf(dev, "Unknown firmware version 0x%x\n", hkey);
497 break;
498 }
499 } else
500 sc->events_availmask = 0xffffffff;
501
502 SYSCTL_ADD_UINT(sc->sysctl_ctx,
503 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
504 "availmask", CTLFLAG_RD,
505 &sc->events_availmask, 0, "Mask of supported events");
506 }
507
508 /* Hook up proc nodes */
509 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
510 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method))
511 continue;
512
513 if (acpi_ibm_sysctls[i].flag_rdonly != 0) {
514 SYSCTL_ADD_PROC(sc->sysctl_ctx,
515 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
516 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RD,
517 sc, i, acpi_ibm_sysctl, "I",
518 acpi_ibm_sysctls[i].description);
519 } else {
520 SYSCTL_ADD_PROC(sc->sysctl_ctx,
521 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
522 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RW,
523 sc, i, acpi_ibm_sysctl, "I",
524 acpi_ibm_sysctls[i].description);
525 }
526 }
527
528 /* Hook up thermal node */
529 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) {
530 SYSCTL_ADD_PROC(sc->sysctl_ctx,
531 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
532 "thermal", CTLTYPE_INT | CTLFLAG_RD,
533 sc, 0, acpi_ibm_thermal_sysctl, "I",
534 "Thermal zones");
535 }
536
537 /* Hook up handlerevents node */
538 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_HANDLEREVENTS)) {
539 SYSCTL_ADD_PROC(sc->sysctl_ctx,
540 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
541 "handlerevents", CTLTYPE_STRING | CTLFLAG_RW,
542 sc, 0, acpi_ibm_handlerevents_sysctl, "I",
543 "devd(8) events handled by acpi_ibm");
544 }
545
546 /* Handle notifies */
547 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
548 acpi_ibm_notify, dev);
549
550 /* Hook up light to led(4) */
551 if (sc->light_set_supported)
552 sc->led_dev = led_create_state(ibm_led, sc, "thinklight",
553 (sc->light_val ? 1 : 0));
554
555 /* Enable per-model events. */
556 maker = kern_getenv("smbios.system.maker");
557 product = kern_getenv("smbios.system.product");
558 if (maker == NULL || product == NULL)
559 goto nosmbios;
560
561 for (i = 0; i < nitems(acpi_ibm_models); i++) {
562 if (strcmp(maker, acpi_ibm_models[i].maker) == 0 &&
563 strcmp(product, acpi_ibm_models[i].product) == 0) {
564 ACPI_SERIAL_BEGIN(ibm);
565 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK,
566 acpi_ibm_models[i].eventmask);
567 ACPI_SERIAL_END(ibm);
568 }
569 }
570
571 nosmbios:
572 freeenv(maker);
573 freeenv(product);
574
575 /* Enable events by default. */
576 ACPI_SERIAL_BEGIN(ibm);
577 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 1);
578 ACPI_SERIAL_END(ibm);
579
580
581 return (0);
582 }
583
584 static int
acpi_ibm_detach(device_t dev)585 acpi_ibm_detach(device_t dev)
586 {
587 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
588
589 struct acpi_ibm_softc *sc = device_get_softc(dev);
590
591 /* Disable events and restore eventmask */
592 ACPI_SERIAL_BEGIN(ibm);
593 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0);
594 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask);
595 ACPI_SERIAL_END(ibm);
596
597 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify);
598
599 if (sc->led_dev != NULL)
600 led_destroy(sc->led_dev);
601
602 return (0);
603 }
604
605 static int
acpi_ibm_resume(device_t dev)606 acpi_ibm_resume(device_t dev)
607 {
608 struct acpi_ibm_softc *sc = device_get_softc(dev);
609
610 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
611
612 ACPI_SERIAL_BEGIN(ibm);
613 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
614 int val;
615
616 val = acpi_ibm_sysctl_get(sc, i);
617
618 if (acpi_ibm_sysctls[i].flag_rdonly != 0)
619 continue;
620
621 acpi_ibm_sysctl_set(sc, i, val);
622 }
623 ACPI_SERIAL_END(ibm);
624
625 /* The mic led does not turn back on when sysctl_set is called in the above loop */
626 acpi_ibm_mic_led_set(sc, sc->mic_led_state);
627
628 return (0);
629 }
630
631 static int
acpi_ibm_eventmask_set(struct acpi_ibm_softc * sc,int val)632 acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val)
633 {
634 ACPI_OBJECT arg[2];
635 ACPI_OBJECT_LIST args;
636 ACPI_STATUS status;
637
638 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
639 ACPI_SERIAL_ASSERT(ibm);
640
641 args.Count = 2;
642 args.Pointer = arg;
643 arg[0].Type = ACPI_TYPE_INTEGER;
644 arg[1].Type = ACPI_TYPE_INTEGER;
645
646 for (int i = 0; i < 32; ++i) {
647 arg[0].Integer.Value = i+1;
648 arg[1].Integer.Value = (((1 << i) & val) != 0);
649 status = AcpiEvaluateObject(sc->handle,
650 IBM_NAME_EVENTS_MASK_SET, &args, NULL);
651
652 if (ACPI_FAILURE(status))
653 return (status);
654 }
655
656 return (0);
657 }
658
659 static int
acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS)660 acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS)
661 {
662 struct acpi_ibm_softc *sc;
663 int arg;
664 int error = 0;
665 int function;
666 int method;
667
668 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
669
670 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
671 function = oidp->oid_arg2;
672 method = acpi_ibm_sysctls[function].method;
673
674 ACPI_SERIAL_BEGIN(ibm);
675 arg = acpi_ibm_sysctl_get(sc, method);
676 error = sysctl_handle_int(oidp, &arg, 0, req);
677
678 /* Sanity check */
679 if (error != 0 || req->newptr == NULL)
680 goto out;
681
682 /* Update */
683 error = acpi_ibm_sysctl_set(sc, method, arg);
684
685 out:
686 ACPI_SERIAL_END(ibm);
687 return (error);
688 }
689
690 static int
acpi_ibm_sysctl_get(struct acpi_ibm_softc * sc,int method)691 acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method)
692 {
693 UINT64 val_ec;
694 int val = 0, key;
695
696 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
697 ACPI_SERIAL_ASSERT(ibm);
698
699 switch (method) {
700 case ACPI_IBM_METHOD_EVENTS:
701 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val);
702 break;
703
704 case ACPI_IBM_METHOD_EVENTMASK:
705 if (sc->events_mask_supported)
706 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val);
707 break;
708
709 case ACPI_IBM_METHOD_HOTKEY:
710 /*
711 * Construct the hotkey as a bitmask as illustrated below.
712 * Note that whenever a key was pressed, the respecting bit
713 * toggles and nothing else changes.
714 * +--+--+-+-+-+-+-+-+-+-+-+-+
715 * |11|10|9|8|7|6|5|4|3|2|1|0|
716 * +--+--+-+-+-+-+-+-+-+-+-+-+
717 * | | | | | | | | | | | |
718 * | | | | | | | | | | | +- Home Button
719 * | | | | | | | | | | +--- Search Button
720 * | | | | | | | | | +----- Mail Button
721 * | | | | | | | | +------- Thinkpad Button
722 * | | | | | | | +--------- Zoom (Fn + Space)
723 * | | | | | | +----------- WLAN Button
724 * | | | | | +------------- Video Button
725 * | | | | +--------------- Hibernate Button
726 * | | | +----------------- Thinklight Button
727 * | | +------------------- Screen expand (Fn + F8)
728 * | +--------------------- Brightness
729 * +------------------------ Volume/Mute
730 */
731 key = rtcin(IBM_RTC_HOTKEY1);
732 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key;
733 key = rtcin(IBM_RTC_HOTKEY2);
734 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key;
735 val |= (IBM_RTC_MASK_ZOOM & key) >> 1;
736 key = rtcin(IBM_RTC_THINKLIGHT);
737 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
738 key = rtcin(IBM_RTC_SCREENEXPAND);
739 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
740 key = rtcin(IBM_RTC_BRIGHTNESS);
741 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5;
742 key = rtcin(IBM_RTC_VOLUME);
743 val |= (IBM_RTC_MASK_VOLUME & key) << 4;
744 break;
745
746 case ACPI_IBM_METHOD_BRIGHTNESS:
747 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
748 val = val_ec & IBM_EC_MASK_BRI;
749 break;
750
751 case ACPI_IBM_METHOD_VOLUME:
752 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
753 val = val_ec & IBM_EC_MASK_VOL;
754 break;
755
756 case ACPI_IBM_METHOD_MUTE:
757 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
758 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
759 break;
760
761 case ACPI_IBM_METHOD_THINKLIGHT:
762 if (sc->light_get_supported)
763 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val);
764 else
765 val = sc->light_val;
766 break;
767
768 case ACPI_IBM_METHOD_BLUETOOTH:
769 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
770 sc->wlan_bt_flags = val;
771 val = ((val & IBM_NAME_MASK_BT) != 0);
772 break;
773
774 case ACPI_IBM_METHOD_WLAN:
775 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
776 sc->wlan_bt_flags = val;
777 val = ((val & IBM_NAME_MASK_WLAN) != 0);
778 break;
779
780 case ACPI_IBM_METHOD_FANSPEED:
781 if (sc->fan_handle) {
782 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val)))
783 val = -1;
784 }
785 else {
786 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2);
787 val = val_ec;
788 }
789 break;
790
791 case ACPI_IBM_METHOD_FANLEVEL:
792 /*
793 * The IBM_EC_FANSTATUS register works as follows:
794 * Bit 0-5 indicate the level at which the fan operates. Only
795 * values between 0 and 7 have an effect. Everything
796 * above 7 is treated the same as level 7
797 * Bit 6 overrides the fan speed limit if set to 1
798 * Bit 7 indicates at which mode the fan operates:
799 * manual (0) or automatic (1)
800 */
801 if (!sc->fan_handle) {
802 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
803 val = val_ec & IBM_EC_MASK_FANLEVEL;
804 }
805 break;
806
807 case ACPI_IBM_METHOD_FANSTATUS:
808 if (!sc->fan_handle) {
809 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
810 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS;
811 }
812 else
813 val = -1;
814 break;
815 case ACPI_IBM_METHOD_MIC_LED:
816 if (sc->mic_led_handle)
817 return sc->mic_led_state;
818 else
819 val = -1;
820 break;
821 }
822
823 return (val);
824 }
825
826 static int
acpi_ibm_sysctl_set(struct acpi_ibm_softc * sc,int method,int arg)827 acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg)
828 {
829 int val;
830 UINT64 val_ec;
831 ACPI_STATUS status;
832
833 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
834 ACPI_SERIAL_ASSERT(ibm);
835
836 switch (method) {
837 case ACPI_IBM_METHOD_EVENTS:
838 if (arg < 0 || arg > 1)
839 return (EINVAL);
840
841 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg);
842 if (ACPI_FAILURE(status))
843 return (status);
844 if (sc->events_mask_supported)
845 return acpi_ibm_eventmask_set(sc, sc->events_availmask);
846 break;
847
848 case ACPI_IBM_METHOD_EVENTMASK:
849 if (sc->events_mask_supported)
850 return acpi_ibm_eventmask_set(sc, arg);
851 break;
852
853 case ACPI_IBM_METHOD_BRIGHTNESS:
854 return acpi_ibm_brightness_set(sc, arg);
855 break;
856
857 case ACPI_IBM_METHOD_VOLUME:
858 return acpi_ibm_volume_set(sc, arg);
859 break;
860
861 case ACPI_IBM_METHOD_MUTE:
862 return acpi_ibm_mute_set(sc, arg);
863 break;
864
865 case ACPI_IBM_METHOD_MIC_LED:
866 return acpi_ibm_mic_led_set (sc, arg);
867 break;
868
869 case ACPI_IBM_METHOD_THINKLIGHT:
870 return acpi_ibm_thinklight_set(sc, arg);
871 break;
872
873 case ACPI_IBM_METHOD_BLUETOOTH:
874 return acpi_ibm_bluetooth_set(sc, arg);
875 break;
876
877 case ACPI_IBM_METHOD_FANLEVEL:
878 if (arg < 0 || arg > 7)
879 return (EINVAL);
880
881 if (!sc->fan_handle) {
882 /* Read the current fanstatus */
883 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
884 val = val_ec & (~IBM_EC_MASK_FANLEVEL);
885
886 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1);
887 }
888 break;
889
890 case ACPI_IBM_METHOD_FANSTATUS:
891 if (arg < 0 || arg > 1)
892 return (EINVAL);
893
894 if (!sc->fan_handle) {
895 /* Read the current fanstatus */
896 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
897
898 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS,
899 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1);
900 }
901 break;
902 }
903
904 return (0);
905 }
906
907 static int
acpi_ibm_sysctl_init(struct acpi_ibm_softc * sc,int method)908 acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method)
909 {
910 int dummy;
911 ACPI_OBJECT_TYPE cmos_t;
912 ACPI_HANDLE ledb_handle;
913
914 switch (method) {
915 case ACPI_IBM_METHOD_EVENTS:
916 return (TRUE);
917
918 case ACPI_IBM_METHOD_EVENTMASK:
919 return (sc->events_mask_supported);
920
921 case ACPI_IBM_METHOD_HOTKEY:
922 case ACPI_IBM_METHOD_BRIGHTNESS:
923 case ACPI_IBM_METHOD_VOLUME:
924 case ACPI_IBM_METHOD_MUTE:
925 /* EC is required here, which was already checked before */
926 return (TRUE);
927
928 case ACPI_IBM_METHOD_MIC_LED:
929 if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "MMTS", &sc->mic_led_handle)))
930 {
931 /* Turn off mic led by default */
932 acpi_ibm_mic_led_set (sc, 0);
933 return(TRUE);
934 }
935 else
936 sc->mic_led_handle = NULL;
937 return (FALSE);
938
939 case ACPI_IBM_METHOD_THINKLIGHT:
940 sc->cmos_handle = NULL;
941 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(
942 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val));
943
944 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) ||
945 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) ||
946 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) &&
947 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
948 cmos_t == ACPI_TYPE_METHOD) {
949 sc->light_cmd_on = 0x0c;
950 sc->light_cmd_off = 0x0d;
951 sc->cmos_handle = sc->light_handle;
952 }
953 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) {
954 sc->light_cmd_on = 1;
955 sc->light_cmd_off = 0;
956 }
957 else
958 sc->light_handle = NULL;
959
960 sc->light_set_supported = (sc->light_handle &&
961 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle)));
962
963 if (sc->light_get_supported)
964 return (TRUE);
965
966 if (sc->light_set_supported) {
967 sc->light_val = 0;
968 return (TRUE);
969 }
970
971 return (FALSE);
972
973 case ACPI_IBM_METHOD_BLUETOOTH:
974 case ACPI_IBM_METHOD_WLAN:
975 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy)))
976 return (TRUE);
977 return (FALSE);
978
979 case ACPI_IBM_METHOD_FANSPEED:
980 /*
981 * Some models report the fan speed in levels from 0-7
982 * Newer models report it contiguously
983 */
984 sc->fan_levels =
985 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) ||
986 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle)));
987 return (TRUE);
988
989 case ACPI_IBM_METHOD_FANLEVEL:
990 case ACPI_IBM_METHOD_FANSTATUS:
991 /*
992 * Fan status is only supported on those models,
993 * which report fan RPM contiguously, not in levels
994 */
995 if (sc->fan_levels)
996 return (FALSE);
997 return (TRUE);
998
999 case ACPI_IBM_METHOD_THERMAL:
1000 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) {
1001 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy));
1002 return (TRUE);
1003 }
1004 return (FALSE);
1005
1006 case ACPI_IBM_METHOD_HANDLEREVENTS:
1007 return (TRUE);
1008 }
1009 return (FALSE);
1010 }
1011
1012 static int
acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS)1013 acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS)
1014 {
1015 struct acpi_ibm_softc *sc;
1016 int error = 0;
1017 char temp_cmd[] = "TMP0";
1018 int temp[8];
1019
1020 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1021
1022 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
1023
1024 ACPI_SERIAL_BEGIN(ibm);
1025
1026 for (int i = 0; i < 8; ++i) {
1027 temp_cmd[3] = '0' + i;
1028
1029 /*
1030 * The TMPx methods seem to return +/- 128 or 0
1031 * when the respecting sensor is not available
1032 */
1033 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
1034 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0)
1035 temp[i] = -1;
1036 else if (sc->thermal_updt_supported)
1037 /* Temperature is reported in tenth of Kelvin */
1038 temp[i] = (temp[i] - 2731 + 5) / 10;
1039 }
1040
1041 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req);
1042
1043 ACPI_SERIAL_END(ibm);
1044 return (error);
1045 }
1046
1047 static int
acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS)1048 acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS)
1049 {
1050 struct acpi_ibm_softc *sc;
1051 int error = 0;
1052 struct sbuf sb;
1053 char *cp, *ep;
1054 int l, val;
1055 unsigned int handler_events;
1056 char temp[128];
1057
1058 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1059
1060 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
1061
1062 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL)
1063 return (ENOMEM);
1064
1065 ACPI_SERIAL_BEGIN(ibm);
1066
1067 /* Get old values if this is a get request. */
1068 if (req->newptr == NULL) {
1069 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++)
1070 if (sc->handler_events & (1 << i))
1071 sbuf_printf(&sb, "0x%02x ", i + 1);
1072 if (sbuf_len(&sb) == 0)
1073 sbuf_printf(&sb, "NONE");
1074 }
1075
1076 sbuf_trim(&sb);
1077 sbuf_finish(&sb);
1078 strlcpy(temp, sbuf_data(&sb), sizeof(temp));
1079 sbuf_delete(&sb);
1080
1081 error = sysctl_handle_string(oidp, temp, sizeof(temp), req);
1082
1083 /* Check for error or no change */
1084 if (error != 0 || req->newptr == NULL)
1085 goto out;
1086
1087 /* If the user is setting a string, parse it. */
1088 handler_events = 0;
1089 cp = temp;
1090 while (*cp) {
1091 if (isspace(*cp)) {
1092 cp++;
1093 continue;
1094 }
1095
1096 ep = cp;
1097
1098 while (*ep && !isspace(*ep))
1099 ep++;
1100
1101 l = ep - cp;
1102 if (l == 0)
1103 break;
1104
1105 if (strncmp(cp, "NONE", 4) == 0) {
1106 cp = ep;
1107 continue;
1108 }
1109
1110 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x'))
1111 val = strtoul(cp, &ep, 16);
1112 else
1113 val = strtoul(cp, &ep, 10);
1114
1115 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) {
1116 cp[l] = '\0';
1117 device_printf(sc->dev, "invalid event code: %s\n", cp);
1118 error = EINVAL;
1119 goto out;
1120 }
1121
1122 handler_events |= 1 << (val - 1);
1123
1124 cp = ep;
1125 }
1126
1127 sc->handler_events = handler_events;
1128 out:
1129 ACPI_SERIAL_END(ibm);
1130 return (error);
1131 }
1132
1133 static int
acpi_ibm_brightness_set(struct acpi_ibm_softc * sc,int arg)1134 acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg)
1135 {
1136 int val, step;
1137 UINT64 val_ec;
1138 ACPI_OBJECT Arg;
1139 ACPI_OBJECT_LIST Args;
1140 ACPI_STATUS status;
1141
1142 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1143 ACPI_SERIAL_ASSERT(ibm);
1144
1145 if (arg < 0 || arg > 7)
1146 return (EINVAL);
1147
1148 /* Read the current brightness */
1149 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
1150 if (ACPI_FAILURE(status))
1151 return (status);
1152
1153 if (sc->cmos_handle) {
1154 val = val_ec & IBM_EC_MASK_BRI;
1155
1156 Args.Count = 1;
1157 Args.Pointer = &Arg;
1158 Arg.Type = ACPI_TYPE_INTEGER;
1159 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP :
1160 IBM_CMOS_BRIGHTNESS_DOWN;
1161
1162 step = (arg > val) ? 1 : -1;
1163 for (int i = val; i != arg; i += step) {
1164 status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1165 &Args, NULL);
1166 if (ACPI_FAILURE(status)) {
1167 /* Record the last value */
1168 if (i != val) {
1169 ACPI_EC_WRITE(sc->ec_dev,
1170 IBM_EC_BRIGHTNESS, i - step, 1);
1171 }
1172 return (status);
1173 }
1174 }
1175 }
1176
1177 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1);
1178 }
1179
1180 static int
acpi_ibm_bluetooth_set(struct acpi_ibm_softc * sc,int arg)1181 acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg)
1182 {
1183 int val;
1184
1185 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1186 ACPI_SERIAL_ASSERT(ibm);
1187
1188 if (arg < 0 || arg > 1)
1189 return (EINVAL);
1190
1191 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT :
1192 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT);
1193 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val);
1194 }
1195
1196 static int
acpi_ibm_thinklight_set(struct acpi_ibm_softc * sc,int arg)1197 acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg)
1198 {
1199 ACPI_OBJECT Arg;
1200 ACPI_OBJECT_LIST Args;
1201 ACPI_STATUS status;
1202
1203 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1204 ACPI_SERIAL_ASSERT(ibm);
1205
1206 if (arg < 0 || arg > 1)
1207 return (EINVAL);
1208
1209 if (sc->light_set_supported) {
1210 Args.Count = 1;
1211 Args.Pointer = &Arg;
1212 Arg.Type = ACPI_TYPE_INTEGER;
1213 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
1214
1215 status = AcpiEvaluateObject(sc->light_handle, NULL,
1216 &Args, NULL);
1217 if (ACPI_SUCCESS(status))
1218 sc->light_val = arg;
1219 return (status);
1220 }
1221
1222 return (0);
1223 }
1224
1225 static int
acpi_ibm_volume_set(struct acpi_ibm_softc * sc,int arg)1226 acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg)
1227 {
1228 int val, step;
1229 UINT64 val_ec;
1230 ACPI_OBJECT Arg;
1231 ACPI_OBJECT_LIST Args;
1232 ACPI_STATUS status;
1233
1234 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1235 ACPI_SERIAL_ASSERT(ibm);
1236
1237 if (arg < 0 || arg > 14)
1238 return (EINVAL);
1239
1240 /* Read the current volume */
1241 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1242 if (ACPI_FAILURE(status))
1243 return (status);
1244
1245 if (sc->cmos_handle) {
1246 val = val_ec & IBM_EC_MASK_VOL;
1247
1248 Args.Count = 1;
1249 Args.Pointer = &Arg;
1250 Arg.Type = ACPI_TYPE_INTEGER;
1251 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP :
1252 IBM_CMOS_VOLUME_DOWN;
1253
1254 step = (arg > val) ? 1 : -1;
1255 for (int i = val; i != arg; i += step) {
1256 status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1257 &Args, NULL);
1258 if (ACPI_FAILURE(status)) {
1259 /* Record the last value */
1260 if (i != val) {
1261 val_ec = i - step +
1262 (val_ec & (~IBM_EC_MASK_VOL));
1263 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME,
1264 val_ec, 1);
1265 }
1266 return (status);
1267 }
1268 }
1269 }
1270
1271 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL));
1272 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1);
1273 }
1274
1275 static int
acpi_ibm_mute_set(struct acpi_ibm_softc * sc,int arg)1276 acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg)
1277 {
1278 UINT64 val_ec;
1279 ACPI_OBJECT Arg;
1280 ACPI_OBJECT_LIST Args;
1281 ACPI_STATUS status;
1282
1283 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1284 ACPI_SERIAL_ASSERT(ibm);
1285
1286 if (arg < 0 || arg > 1)
1287 return (EINVAL);
1288
1289 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1290 if (ACPI_FAILURE(status))
1291 return (status);
1292
1293 if (sc->cmos_handle) {
1294 Args.Count = 1;
1295 Args.Pointer = &Arg;
1296 Arg.Type = ACPI_TYPE_INTEGER;
1297 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE;
1298
1299 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
1300 if (ACPI_FAILURE(status))
1301 return (status);
1302 }
1303
1304 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE :
1305 val_ec & (~IBM_EC_MASK_MUTE);
1306 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1);
1307 }
1308
1309 static void
acpi_ibm_eventhandler(struct acpi_ibm_softc * sc,int arg)1310 acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg)
1311 {
1312 int val;
1313 UINT64 val_ec;
1314 ACPI_STATUS status;
1315
1316 ACPI_SERIAL_BEGIN(ibm);
1317 switch (arg) {
1318 case IBM_EVENT_SUSPEND_TO_RAM:
1319 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
1320 break;
1321
1322 case IBM_EVENT_BLUETOOTH:
1323 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0));
1324 break;
1325
1326 case IBM_EVENT_BRIGHTNESS_UP:
1327 case IBM_EVENT_BRIGHTNESS_DOWN:
1328 /* Read the current brightness */
1329 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS,
1330 &val_ec, 1);
1331 if (ACPI_FAILURE(status))
1332 return;
1333
1334 val = val_ec & IBM_EC_MASK_BRI;
1335 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1;
1336 acpi_ibm_brightness_set(sc, val);
1337 break;
1338
1339 case IBM_EVENT_THINKLIGHT:
1340 acpi_ibm_thinklight_set(sc, (sc->light_val == 0));
1341 break;
1342
1343 case IBM_EVENT_VOLUME_UP:
1344 case IBM_EVENT_VOLUME_DOWN:
1345 /* Read the current volume */
1346 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1347 if (ACPI_FAILURE(status))
1348 return;
1349
1350 val = val_ec & IBM_EC_MASK_VOL;
1351 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1;
1352 acpi_ibm_volume_set(sc, val);
1353 break;
1354
1355 case IBM_EVENT_MUTE:
1356 /* Read the current value */
1357 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1358 if (ACPI_FAILURE(status))
1359 return;
1360
1361 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
1362 acpi_ibm_mute_set(sc, (val == 0));
1363 break;
1364
1365 default:
1366 break;
1367 }
1368 ACPI_SERIAL_END(ibm);
1369 }
1370
1371 static void
acpi_ibm_notify(ACPI_HANDLE h,UINT32 notify,void * context)1372 acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context)
1373 {
1374 int event, arg, type;
1375 device_t dev = context;
1376 struct acpi_ibm_softc *sc = device_get_softc(dev);
1377
1378 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
1379
1380 if (notify != 0x80)
1381 device_printf(dev, "Unknown notify\n");
1382
1383 for (;;) {
1384 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event);
1385 if (event == 0)
1386 break;
1387
1388
1389 type = (event >> 12) & 0xf;
1390 arg = event & 0xfff;
1391 switch (type) {
1392 case 1:
1393 if (!(sc->events_availmask & (1 << (arg - 1)))) {
1394 device_printf(dev, "Unknown key %d\n", arg);
1395 break;
1396 }
1397
1398 /* Execute event handler */
1399 if (sc->handler_events & (1 << (arg - 1)))
1400 acpi_ibm_eventhandler(sc, (arg & 0xff));
1401
1402 /* Notify devd(8) */
1403 acpi_UserNotify("IBM", h, (arg & 0xff));
1404 break;
1405 default:
1406 break;
1407 }
1408 }
1409 }
1410