1 /*-
2 * Copyright (c) 2004 Takanori Watanabe
3 * Copyright (c) 2005 Markus Brueffer <markus@FreeBSD.org>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
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
78 /* Hotkeys/Buttons */
79 #define IBM_RTC_HOTKEY1 0x64
80 #define IBM_RTC_MASK_HOME (1 << 0)
81 #define IBM_RTC_MASK_SEARCH (1 << 1)
82 #define IBM_RTC_MASK_MAIL (1 << 2)
83 #define IBM_RTC_MASK_WLAN (1 << 5)
84 #define IBM_RTC_HOTKEY2 0x65
85 #define IBM_RTC_MASK_THINKPAD (1 << 3)
86 #define IBM_RTC_MASK_ZOOM (1 << 5)
87 #define IBM_RTC_MASK_VIDEO (1 << 6)
88 #define IBM_RTC_MASK_HIBERNATE (1 << 7)
89 #define IBM_RTC_THINKLIGHT 0x66
90 #define IBM_RTC_MASK_THINKLIGHT (1 << 4)
91 #define IBM_RTC_SCREENEXPAND 0x67
92 #define IBM_RTC_MASK_SCREENEXPAND (1 << 5)
93 #define IBM_RTC_BRIGHTNESS 0x6c
94 #define IBM_RTC_MASK_BRIGHTNESS (1 << 5)
95 #define IBM_RTC_VOLUME 0x6e
96 #define IBM_RTC_MASK_VOLUME (1 << 7)
97
98 /* Embedded Controller registers */
99 #define IBM_EC_BRIGHTNESS 0x31
100 #define IBM_EC_MASK_BRI 0x7
101 #define IBM_EC_VOLUME 0x30
102 #define IBM_EC_MASK_VOL 0xf
103 #define IBM_EC_MASK_MUTE (1 << 6)
104 #define IBM_EC_FANSTATUS 0x2F
105 #define IBM_EC_MASK_FANLEVEL 0x3f
106 #define IBM_EC_MASK_FANDISENGAGED (1 << 6)
107 #define IBM_EC_MASK_FANSTATUS (1 << 7)
108 #define IBM_EC_FANSPEED 0x84
109
110 /* CMOS Commands */
111 #define IBM_CMOS_VOLUME_DOWN 0
112 #define IBM_CMOS_VOLUME_UP 1
113 #define IBM_CMOS_VOLUME_MUTE 2
114 #define IBM_CMOS_BRIGHTNESS_UP 4
115 #define IBM_CMOS_BRIGHTNESS_DOWN 5
116
117 /* ACPI methods */
118 #define IBM_NAME_KEYLIGHT "KBLT"
119 #define IBM_NAME_WLAN_BT_GET "GBDC"
120 #define IBM_NAME_WLAN_BT_SET "SBDC"
121 #define IBM_NAME_MASK_BT (1 << 1)
122 #define IBM_NAME_MASK_WLAN (1 << 2)
123 #define IBM_NAME_THERMAL_GET "TMP7"
124 #define IBM_NAME_THERMAL_UPDT "UPDT"
125
126 #define IBM_NAME_EVENTS_STATUS_GET "DHKC"
127 #define IBM_NAME_EVENTS_MASK_GET "DHKN"
128 #define IBM_NAME_EVENTS_STATUS_SET "MHKC"
129 #define IBM_NAME_EVENTS_MASK_SET "MHKM"
130 #define IBM_NAME_EVENTS_GET "MHKP"
131 #define IBM_NAME_EVENTS_AVAILMASK "MHKA"
132
133 /* Event Code */
134 #define IBM_EVENT_LCD_BACKLIGHT 0x03
135 #define IBM_EVENT_SUSPEND_TO_RAM 0x04
136 #define IBM_EVENT_BLUETOOTH 0x05
137 #define IBM_EVENT_SCREEN_EXPAND 0x07
138 #define IBM_EVENT_SUSPEND_TO_DISK 0x0c
139 #define IBM_EVENT_BRIGHTNESS_UP 0x10
140 #define IBM_EVENT_BRIGHTNESS_DOWN 0x11
141 #define IBM_EVENT_THINKLIGHT 0x12
142 #define IBM_EVENT_ZOOM 0x14
143 #define IBM_EVENT_VOLUME_UP 0x15
144 #define IBM_EVENT_VOLUME_DOWN 0x16
145 #define IBM_EVENT_MUTE 0x17
146 #define IBM_EVENT_ACCESS_IBM_BUTTON 0x18
147
148 #define ABS(x) (((x) < 0)? -(x) : (x))
149
150 struct acpi_ibm_softc {
151 device_t dev;
152 ACPI_HANDLE handle;
153
154 /* Embedded controller */
155 device_t ec_dev;
156 ACPI_HANDLE ec_handle;
157
158 /* CMOS */
159 ACPI_HANDLE cmos_handle;
160
161 /* Fan status */
162 ACPI_HANDLE fan_handle;
163 int fan_levels;
164
165 /* Keylight commands and states */
166 ACPI_HANDLE light_handle;
167 int light_cmd_on;
168 int light_cmd_off;
169 int light_val;
170 int light_get_supported;
171 int light_set_supported;
172
173 /* led(4) interface */
174 struct cdev *led_dev;
175 int led_busy;
176 int led_state;
177
178 int wlan_bt_flags;
179 int thermal_updt_supported;
180
181 unsigned int events_availmask;
182 unsigned int events_initialmask;
183 int events_mask_supported;
184 int events_enable;
185
186 unsigned int handler_events;
187
188 struct sysctl_ctx_list *sysctl_ctx;
189 struct sysctl_oid *sysctl_tree;
190 };
191
192 static struct {
193 char *name;
194 int method;
195 char *description;
196 int flag_rdonly;
197 } acpi_ibm_sysctls[] = {
198 {
199 .name = "events",
200 .method = ACPI_IBM_METHOD_EVENTS,
201 .description = "ACPI events enable",
202 },
203 {
204 .name = "eventmask",
205 .method = ACPI_IBM_METHOD_EVENTMASK,
206 .description = "ACPI eventmask",
207 },
208 {
209 .name = "hotkey",
210 .method = ACPI_IBM_METHOD_HOTKEY,
211 .description = "Key Status",
212 .flag_rdonly = 1
213 },
214 {
215 .name = "lcd_brightness",
216 .method = ACPI_IBM_METHOD_BRIGHTNESS,
217 .description = "LCD Brightness",
218 },
219 {
220 .name = "volume",
221 .method = ACPI_IBM_METHOD_VOLUME,
222 .description = "Volume",
223 },
224 {
225 .name = "mute",
226 .method = ACPI_IBM_METHOD_MUTE,
227 .description = "Mute",
228 },
229 {
230 .name = "thinklight",
231 .method = ACPI_IBM_METHOD_THINKLIGHT,
232 .description = "Thinklight enable",
233 },
234 {
235 .name = "bluetooth",
236 .method = ACPI_IBM_METHOD_BLUETOOTH,
237 .description = "Bluetooth enable",
238 },
239 {
240 .name = "wlan",
241 .method = ACPI_IBM_METHOD_WLAN,
242 .description = "WLAN enable",
243 .flag_rdonly = 1
244 },
245 {
246 .name = "fan_speed",
247 .method = ACPI_IBM_METHOD_FANSPEED,
248 .description = "Fan speed",
249 .flag_rdonly = 1
250 },
251 {
252 .name = "fan_level",
253 .method = ACPI_IBM_METHOD_FANLEVEL,
254 .description = "Fan level",
255 },
256 {
257 .name = "fan",
258 .method = ACPI_IBM_METHOD_FANSTATUS,
259 .description = "Fan enable",
260 },
261
262 { NULL, 0, NULL, 0 }
263 };
264
265 /*
266 * Per-model default list of event mask.
267 */
268 #define ACPI_IBM_HKEY_RFKILL_MASK (1 << 4)
269 #define ACPI_IBM_HKEY_DSWITCH_MASK (1 << 6)
270 #define ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK (1 << 15)
271 #define ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK (1 << 16)
272 #define ACPI_IBM_HKEY_SEARCH_MASK (1 << 18)
273 #define ACPI_IBM_HKEY_MICMUTE_MASK (1 << 26)
274 #define ACPI_IBM_HKEY_SETTINGS_MASK (1 << 28)
275 #define ACPI_IBM_HKEY_VIEWOPEN_MASK (1 << 30)
276 #define ACPI_IBM_HKEY_VIEWALL_MASK (1 << 31)
277
278 struct acpi_ibm_models {
279 const char *maker;
280 const char *product;
281 uint32_t eventmask;
282 } acpi_ibm_models[] = {
283 { "LENOVO", "20BSCTO1WW",
284 ACPI_IBM_HKEY_RFKILL_MASK |
285 ACPI_IBM_HKEY_DSWITCH_MASK |
286 ACPI_IBM_HKEY_BRIGHTNESS_UP_MASK |
287 ACPI_IBM_HKEY_BRIGHTNESS_DOWN_MASK |
288 ACPI_IBM_HKEY_SEARCH_MASK |
289 ACPI_IBM_HKEY_MICMUTE_MASK |
290 ACPI_IBM_HKEY_SETTINGS_MASK |
291 ACPI_IBM_HKEY_VIEWOPEN_MASK |
292 ACPI_IBM_HKEY_VIEWALL_MASK
293 }
294 };
295
296 ACPI_SERIAL_DECL(ibm, "ACPI IBM extras");
297
298 static int acpi_ibm_probe(device_t dev);
299 static int acpi_ibm_attach(device_t dev);
300 static int acpi_ibm_detach(device_t dev);
301 static int acpi_ibm_resume(device_t dev);
302
303 static void ibm_led(void *softc, int onoff);
304 static void ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused);
305
306 static int acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS);
307 static int acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method);
308 static int acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method);
309 static int acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int val);
310
311 static int acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val);
312 static int acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS);
313 static int acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS);
314 static void acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context);
315
316 static int acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg);
317 static int acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg);
318 static int acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg);
319 static int acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg);
320 static int acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg);
321
322 static device_method_t acpi_ibm_methods[] = {
323 /* Device interface */
324 DEVMETHOD(device_probe, acpi_ibm_probe),
325 DEVMETHOD(device_attach, acpi_ibm_attach),
326 DEVMETHOD(device_detach, acpi_ibm_detach),
327 DEVMETHOD(device_resume, acpi_ibm_resume),
328
329 DEVMETHOD_END
330 };
331
332 static driver_t acpi_ibm_driver = {
333 "acpi_ibm",
334 acpi_ibm_methods,
335 sizeof(struct acpi_ibm_softc),
336 };
337
338 static devclass_t acpi_ibm_devclass;
339
340 DRIVER_MODULE(acpi_ibm, acpi, acpi_ibm_driver, acpi_ibm_devclass,
341 0, 0);
342 MODULE_DEPEND(acpi_ibm, acpi, 1, 1, 1);
343 static char *ibm_ids[] = {"IBM0068", "LEN0068", NULL};
344
345 static void
ibm_led(void * softc,int onoff)346 ibm_led(void *softc, int onoff)
347 {
348 struct acpi_ibm_softc* sc = (struct acpi_ibm_softc*) softc;
349
350 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
351
352 if (sc->led_busy)
353 return;
354
355 sc->led_busy = 1;
356 sc->led_state = onoff;
357
358 AcpiOsExecute(OSL_NOTIFY_HANDLER, (void *)ibm_led_task, sc);
359 }
360
361 static void
ibm_led_task(struct acpi_ibm_softc * sc,int pending __unused)362 ibm_led_task(struct acpi_ibm_softc *sc, int pending __unused)
363 {
364 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
365
366 ACPI_SERIAL_BEGIN(ibm);
367 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_THINKLIGHT, sc->led_state);
368 ACPI_SERIAL_END(ibm);
369
370 sc->led_busy = 0;
371 }
372
373 static int
acpi_ibm_probe(device_t dev)374 acpi_ibm_probe(device_t dev)
375 {
376 if (acpi_disabled("ibm") ||
377 ACPI_ID_PROBE(device_get_parent(dev), dev, ibm_ids) == NULL ||
378 device_get_unit(dev) != 0)
379 return (ENXIO);
380
381 device_set_desc(dev, "IBM ThinkPad ACPI Extras");
382
383 return (0);
384 }
385
386 static int
acpi_ibm_attach(device_t dev)387 acpi_ibm_attach(device_t dev)
388 {
389 int i;
390 struct acpi_ibm_softc *sc;
391 char *maker, *product;
392 devclass_t ec_devclass;
393
394 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
395
396 sc = device_get_softc(dev);
397 sc->dev = dev;
398 sc->handle = acpi_get_handle(dev);
399
400 /* Look for the first embedded controller */
401 if (!(ec_devclass = devclass_find ("acpi_ec"))) {
402 if (bootverbose)
403 device_printf(dev, "Couldn't find acpi_ec devclass\n");
404 return (EINVAL);
405 }
406 if (!(sc->ec_dev = devclass_get_device(ec_devclass, 0))) {
407 if (bootverbose)
408 device_printf(dev, "Couldn't find acpi_ec device\n");
409 return (EINVAL);
410 }
411 sc->ec_handle = acpi_get_handle(sc->ec_dev);
412
413 /* Get the sysctl tree */
414 sc->sysctl_ctx = device_get_sysctl_ctx(dev);
415 sc->sysctl_tree = device_get_sysctl_tree(dev);
416
417 /* Look for event mask and hook up the nodes */
418 sc->events_mask_supported = ACPI_SUCCESS(acpi_GetInteger(sc->handle,
419 IBM_NAME_EVENTS_MASK_GET, &sc->events_initialmask));
420
421 if (sc->events_mask_supported) {
422 SYSCTL_ADD_UINT(sc->sysctl_ctx,
423 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
424 "initialmask", CTLFLAG_RD,
425 &sc->events_initialmask, 0, "Initial eventmask");
426
427 /* The availmask is the bitmask of supported events */
428 if (ACPI_FAILURE(acpi_GetInteger(sc->handle,
429 IBM_NAME_EVENTS_AVAILMASK, &sc->events_availmask)))
430 sc->events_availmask = 0xffffffff;
431
432 SYSCTL_ADD_UINT(sc->sysctl_ctx,
433 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
434 "availmask", CTLFLAG_RD,
435 &sc->events_availmask, 0, "Mask of supported events");
436 }
437
438 /* Hook up proc nodes */
439 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
440 if (!acpi_ibm_sysctl_init(sc, acpi_ibm_sysctls[i].method))
441 continue;
442
443 if (acpi_ibm_sysctls[i].flag_rdonly != 0) {
444 SYSCTL_ADD_PROC(sc->sysctl_ctx,
445 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
446 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RD,
447 sc, i, acpi_ibm_sysctl, "I",
448 acpi_ibm_sysctls[i].description);
449 } else {
450 SYSCTL_ADD_PROC(sc->sysctl_ctx,
451 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
452 acpi_ibm_sysctls[i].name, CTLTYPE_INT | CTLFLAG_RW,
453 sc, i, acpi_ibm_sysctl, "I",
454 acpi_ibm_sysctls[i].description);
455 }
456 }
457
458 /* Hook up thermal node */
459 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_THERMAL)) {
460 SYSCTL_ADD_PROC(sc->sysctl_ctx,
461 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
462 "thermal", CTLTYPE_INT | CTLFLAG_RD,
463 sc, 0, acpi_ibm_thermal_sysctl, "I",
464 "Thermal zones");
465 }
466
467 /* Hook up handlerevents node */
468 if (acpi_ibm_sysctl_init(sc, ACPI_IBM_METHOD_HANDLEREVENTS)) {
469 SYSCTL_ADD_PROC(sc->sysctl_ctx,
470 SYSCTL_CHILDREN(sc->sysctl_tree), OID_AUTO,
471 "handlerevents", CTLTYPE_STRING | CTLFLAG_RW,
472 sc, 0, acpi_ibm_handlerevents_sysctl, "I",
473 "devd(8) events handled by acpi_ibm");
474 }
475
476 /* Handle notifies */
477 AcpiInstallNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY,
478 acpi_ibm_notify, dev);
479
480 /* Hook up light to led(4) */
481 if (sc->light_set_supported)
482 sc->led_dev = led_create_state(ibm_led, sc, "thinklight",
483 (sc->light_val ? 1 : 0));
484
485 /* Enable per-model events. */
486 maker = kern_getenv("smbios.system.maker");
487 product = kern_getenv("smbios.system.product");
488 if (maker == NULL || product == NULL)
489 goto nosmbios;
490
491 for (i = 0; i < nitems(acpi_ibm_models); i++) {
492 if (strcmp(maker, acpi_ibm_models[i].maker) == 0 &&
493 strcmp(product, acpi_ibm_models[i].product) == 0) {
494 ACPI_SERIAL_BEGIN(ibm);
495 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK,
496 acpi_ibm_models[i].eventmask);
497 ACPI_SERIAL_END(ibm);
498 }
499 }
500
501 nosmbios:
502 freeenv(maker);
503 freeenv(product);
504
505 /* Enable events by default. */
506 ACPI_SERIAL_BEGIN(ibm);
507 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 1);
508 ACPI_SERIAL_END(ibm);
509
510
511 return (0);
512 }
513
514 static int
acpi_ibm_detach(device_t dev)515 acpi_ibm_detach(device_t dev)
516 {
517 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
518
519 struct acpi_ibm_softc *sc = device_get_softc(dev);
520
521 /* Disable events and restore eventmask */
522 ACPI_SERIAL_BEGIN(ibm);
523 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTS, 0);
524 acpi_ibm_sysctl_set(sc, ACPI_IBM_METHOD_EVENTMASK, sc->events_initialmask);
525 ACPI_SERIAL_END(ibm);
526
527 AcpiRemoveNotifyHandler(sc->handle, ACPI_DEVICE_NOTIFY, acpi_ibm_notify);
528
529 if (sc->led_dev != NULL)
530 led_destroy(sc->led_dev);
531
532 return (0);
533 }
534
535 static int
acpi_ibm_resume(device_t dev)536 acpi_ibm_resume(device_t dev)
537 {
538 struct acpi_ibm_softc *sc = device_get_softc(dev);
539
540 ACPI_FUNCTION_TRACE((char *)(uintptr_t) __func__);
541
542 ACPI_SERIAL_BEGIN(ibm);
543 for (int i = 0; acpi_ibm_sysctls[i].name != NULL; i++) {
544 int val;
545
546 val = acpi_ibm_sysctl_get(sc, i);
547
548 if (acpi_ibm_sysctls[i].flag_rdonly != 0)
549 continue;
550
551 acpi_ibm_sysctl_set(sc, i, val);
552 }
553 ACPI_SERIAL_END(ibm);
554
555 return (0);
556 }
557
558 static int
acpi_ibm_eventmask_set(struct acpi_ibm_softc * sc,int val)559 acpi_ibm_eventmask_set(struct acpi_ibm_softc *sc, int val)
560 {
561 ACPI_OBJECT arg[2];
562 ACPI_OBJECT_LIST args;
563 ACPI_STATUS status;
564
565 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
566 ACPI_SERIAL_ASSERT(ibm);
567
568 args.Count = 2;
569 args.Pointer = arg;
570 arg[0].Type = ACPI_TYPE_INTEGER;
571 arg[1].Type = ACPI_TYPE_INTEGER;
572
573 for (int i = 0; i < 32; ++i) {
574 arg[0].Integer.Value = i+1;
575 arg[1].Integer.Value = (((1 << i) & val) != 0);
576 status = AcpiEvaluateObject(sc->handle,
577 IBM_NAME_EVENTS_MASK_SET, &args, NULL);
578
579 if (ACPI_FAILURE(status))
580 return (status);
581 }
582
583 return (0);
584 }
585
586 static int
acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS)587 acpi_ibm_sysctl(SYSCTL_HANDLER_ARGS)
588 {
589 struct acpi_ibm_softc *sc;
590 int arg;
591 int error = 0;
592 int function;
593 int method;
594
595 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
596
597 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
598 function = oidp->oid_arg2;
599 method = acpi_ibm_sysctls[function].method;
600
601 ACPI_SERIAL_BEGIN(ibm);
602 arg = acpi_ibm_sysctl_get(sc, method);
603 error = sysctl_handle_int(oidp, &arg, 0, req);
604
605 /* Sanity check */
606 if (error != 0 || req->newptr == NULL)
607 goto out;
608
609 /* Update */
610 error = acpi_ibm_sysctl_set(sc, method, arg);
611
612 out:
613 ACPI_SERIAL_END(ibm);
614 return (error);
615 }
616
617 static int
acpi_ibm_sysctl_get(struct acpi_ibm_softc * sc,int method)618 acpi_ibm_sysctl_get(struct acpi_ibm_softc *sc, int method)
619 {
620 UINT64 val_ec;
621 int val = 0, key;
622
623 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
624 ACPI_SERIAL_ASSERT(ibm);
625
626 switch (method) {
627 case ACPI_IBM_METHOD_EVENTS:
628 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_GET, &val);
629 break;
630
631 case ACPI_IBM_METHOD_EVENTMASK:
632 if (sc->events_mask_supported)
633 acpi_GetInteger(sc->handle, IBM_NAME_EVENTS_MASK_GET, &val);
634 break;
635
636 case ACPI_IBM_METHOD_HOTKEY:
637 /*
638 * Construct the hotkey as a bitmask as illustrated below.
639 * Note that whenever a key was pressed, the respecting bit
640 * toggles and nothing else changes.
641 * +--+--+-+-+-+-+-+-+-+-+-+-+
642 * |11|10|9|8|7|6|5|4|3|2|1|0|
643 * +--+--+-+-+-+-+-+-+-+-+-+-+
644 * | | | | | | | | | | | |
645 * | | | | | | | | | | | +- Home Button
646 * | | | | | | | | | | +--- Search Button
647 * | | | | | | | | | +----- Mail Button
648 * | | | | | | | | +------- Thinkpad Button
649 * | | | | | | | +--------- Zoom (Fn + Space)
650 * | | | | | | +----------- WLAN Button
651 * | | | | | +------------- Video Button
652 * | | | | +--------------- Hibernate Button
653 * | | | +----------------- Thinklight Button
654 * | | +------------------- Screen expand (Fn + F8)
655 * | +--------------------- Brightness
656 * +------------------------ Volume/Mute
657 */
658 key = rtcin(IBM_RTC_HOTKEY1);
659 val = (IBM_RTC_MASK_HOME | IBM_RTC_MASK_SEARCH | IBM_RTC_MASK_MAIL | IBM_RTC_MASK_WLAN) & key;
660 key = rtcin(IBM_RTC_HOTKEY2);
661 val |= (IBM_RTC_MASK_THINKPAD | IBM_RTC_MASK_VIDEO | IBM_RTC_MASK_HIBERNATE) & key;
662 val |= (IBM_RTC_MASK_ZOOM & key) >> 1;
663 key = rtcin(IBM_RTC_THINKLIGHT);
664 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
665 key = rtcin(IBM_RTC_SCREENEXPAND);
666 val |= (IBM_RTC_MASK_THINKLIGHT & key) << 4;
667 key = rtcin(IBM_RTC_BRIGHTNESS);
668 val |= (IBM_RTC_MASK_BRIGHTNESS & key) << 5;
669 key = rtcin(IBM_RTC_VOLUME);
670 val |= (IBM_RTC_MASK_VOLUME & key) << 4;
671 break;
672
673 case ACPI_IBM_METHOD_BRIGHTNESS:
674 ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
675 val = val_ec & IBM_EC_MASK_BRI;
676 break;
677
678 case ACPI_IBM_METHOD_VOLUME:
679 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
680 val = val_ec & IBM_EC_MASK_VOL;
681 break;
682
683 case ACPI_IBM_METHOD_MUTE:
684 ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
685 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
686 break;
687
688 case ACPI_IBM_METHOD_THINKLIGHT:
689 if (sc->light_get_supported)
690 acpi_GetInteger(sc->ec_handle, IBM_NAME_KEYLIGHT, &val);
691 else
692 val = sc->light_val;
693 break;
694
695 case ACPI_IBM_METHOD_BLUETOOTH:
696 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
697 sc->wlan_bt_flags = val;
698 val = ((val & IBM_NAME_MASK_BT) != 0);
699 break;
700
701 case ACPI_IBM_METHOD_WLAN:
702 acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &val);
703 sc->wlan_bt_flags = val;
704 val = ((val & IBM_NAME_MASK_WLAN) != 0);
705 break;
706
707 case ACPI_IBM_METHOD_FANSPEED:
708 if (sc->fan_handle) {
709 if(ACPI_FAILURE(acpi_GetInteger(sc->fan_handle, NULL, &val)))
710 val = -1;
711 }
712 else {
713 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSPEED, &val_ec, 2);
714 val = val_ec;
715 }
716 break;
717
718 case ACPI_IBM_METHOD_FANLEVEL:
719 /*
720 * The IBM_EC_FANSTATUS register works as follows:
721 * Bit 0-5 indicate the level at which the fan operates. Only
722 * values between 0 and 7 have an effect. Everything
723 * above 7 is treated the same as level 7
724 * Bit 6 overrides the fan speed limit if set to 1
725 * Bit 7 indicates at which mode the fan operates:
726 * manual (0) or automatic (1)
727 */
728 if (!sc->fan_handle) {
729 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
730 val = val_ec & IBM_EC_MASK_FANLEVEL;
731 }
732 break;
733
734 case ACPI_IBM_METHOD_FANSTATUS:
735 if (!sc->fan_handle) {
736 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
737 val = (val_ec & IBM_EC_MASK_FANSTATUS) == IBM_EC_MASK_FANSTATUS;
738 }
739 else
740 val = -1;
741 break;
742 }
743
744 return (val);
745 }
746
747 static int
acpi_ibm_sysctl_set(struct acpi_ibm_softc * sc,int method,int arg)748 acpi_ibm_sysctl_set(struct acpi_ibm_softc *sc, int method, int arg)
749 {
750 int val;
751 UINT64 val_ec;
752 ACPI_STATUS status;
753
754 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
755 ACPI_SERIAL_ASSERT(ibm);
756
757 switch (method) {
758 case ACPI_IBM_METHOD_EVENTS:
759 if (arg < 0 || arg > 1)
760 return (EINVAL);
761
762 status = acpi_SetInteger(sc->handle, IBM_NAME_EVENTS_STATUS_SET, arg);
763 if (ACPI_FAILURE(status))
764 return (status);
765 if (sc->events_mask_supported)
766 return acpi_ibm_eventmask_set(sc, sc->events_availmask);
767 break;
768
769 case ACPI_IBM_METHOD_EVENTMASK:
770 if (sc->events_mask_supported)
771 return acpi_ibm_eventmask_set(sc, arg);
772 break;
773
774 case ACPI_IBM_METHOD_BRIGHTNESS:
775 return acpi_ibm_brightness_set(sc, arg);
776 break;
777
778 case ACPI_IBM_METHOD_VOLUME:
779 return acpi_ibm_volume_set(sc, arg);
780 break;
781
782 case ACPI_IBM_METHOD_MUTE:
783 return acpi_ibm_mute_set(sc, arg);
784 break;
785
786 case ACPI_IBM_METHOD_THINKLIGHT:
787 return acpi_ibm_thinklight_set(sc, arg);
788 break;
789
790 case ACPI_IBM_METHOD_BLUETOOTH:
791 return acpi_ibm_bluetooth_set(sc, arg);
792 break;
793
794 case ACPI_IBM_METHOD_FANLEVEL:
795 if (arg < 0 || arg > 7)
796 return (EINVAL);
797
798 if (!sc->fan_handle) {
799 /* Read the current fanstatus */
800 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
801 val = val_ec & (~IBM_EC_MASK_FANLEVEL);
802
803 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS, val | arg, 1);
804 }
805 break;
806
807 case ACPI_IBM_METHOD_FANSTATUS:
808 if (arg < 0 || arg > 1)
809 return (EINVAL);
810
811 if (!sc->fan_handle) {
812 /* Read the current fanstatus */
813 ACPI_EC_READ(sc->ec_dev, IBM_EC_FANSTATUS, &val_ec, 1);
814
815 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_FANSTATUS,
816 (arg == 1) ? (val_ec | IBM_EC_MASK_FANSTATUS) : (val_ec & (~IBM_EC_MASK_FANSTATUS)), 1);
817 }
818 break;
819 }
820
821 return (0);
822 }
823
824 static int
acpi_ibm_sysctl_init(struct acpi_ibm_softc * sc,int method)825 acpi_ibm_sysctl_init(struct acpi_ibm_softc *sc, int method)
826 {
827 int dummy;
828 ACPI_OBJECT_TYPE cmos_t;
829 ACPI_HANDLE ledb_handle;
830
831 switch (method) {
832 case ACPI_IBM_METHOD_EVENTS:
833 return (TRUE);
834
835 case ACPI_IBM_METHOD_EVENTMASK:
836 return (sc->events_mask_supported);
837
838 case ACPI_IBM_METHOD_HOTKEY:
839 case ACPI_IBM_METHOD_BRIGHTNESS:
840 case ACPI_IBM_METHOD_VOLUME:
841 case ACPI_IBM_METHOD_MUTE:
842 /* EC is required here, which was aready checked before */
843 return (TRUE);
844
845 case ACPI_IBM_METHOD_THINKLIGHT:
846 sc->cmos_handle = NULL;
847 sc->light_get_supported = ACPI_SUCCESS(acpi_GetInteger(
848 sc->ec_handle, IBM_NAME_KEYLIGHT, &sc->light_val));
849
850 if ((ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\UCMS", &sc->light_handle)) ||
851 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMOS", &sc->light_handle)) ||
852 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\CMS", &sc->light_handle))) &&
853 ACPI_SUCCESS(AcpiGetType(sc->light_handle, &cmos_t)) &&
854 cmos_t == ACPI_TYPE_METHOD) {
855 sc->light_cmd_on = 0x0c;
856 sc->light_cmd_off = 0x0d;
857 sc->cmos_handle = sc->light_handle;
858 }
859 else if (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\LGHT", &sc->light_handle))) {
860 sc->light_cmd_on = 1;
861 sc->light_cmd_off = 0;
862 }
863 else
864 sc->light_handle = NULL;
865
866 sc->light_set_supported = (sc->light_handle &&
867 ACPI_FAILURE(AcpiGetHandle(sc->ec_handle, "LEDB", &ledb_handle)));
868
869 if (sc->light_get_supported)
870 return (TRUE);
871
872 if (sc->light_set_supported) {
873 sc->light_val = 0;
874 return (TRUE);
875 }
876
877 return (FALSE);
878
879 case ACPI_IBM_METHOD_BLUETOOTH:
880 case ACPI_IBM_METHOD_WLAN:
881 if (ACPI_SUCCESS(acpi_GetInteger(sc->handle, IBM_NAME_WLAN_BT_GET, &dummy)))
882 return (TRUE);
883 return (FALSE);
884
885 case ACPI_IBM_METHOD_FANSPEED:
886 /*
887 * Some models report the fan speed in levels from 0-7
888 * Newer models report it contiguously
889 */
890 sc->fan_levels =
891 (ACPI_SUCCESS(AcpiGetHandle(sc->handle, "GFAN", &sc->fan_handle)) ||
892 ACPI_SUCCESS(AcpiGetHandle(sc->handle, "\\FSPD", &sc->fan_handle)));
893 return (TRUE);
894
895 case ACPI_IBM_METHOD_FANLEVEL:
896 case ACPI_IBM_METHOD_FANSTATUS:
897 /*
898 * Fan status is only supported on those models,
899 * which report fan RPM contiguously, not in levels
900 */
901 if (sc->fan_levels)
902 return (FALSE);
903 return (TRUE);
904
905 case ACPI_IBM_METHOD_THERMAL:
906 if (ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_GET, &dummy))) {
907 sc->thermal_updt_supported = ACPI_SUCCESS(acpi_GetInteger(sc->ec_handle, IBM_NAME_THERMAL_UPDT, &dummy));
908 return (TRUE);
909 }
910 return (FALSE);
911
912 case ACPI_IBM_METHOD_HANDLEREVENTS:
913 return (TRUE);
914 }
915 return (FALSE);
916 }
917
918 static int
acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS)919 acpi_ibm_thermal_sysctl(SYSCTL_HANDLER_ARGS)
920 {
921 struct acpi_ibm_softc *sc;
922 int error = 0;
923 char temp_cmd[] = "TMP0";
924 int temp[8];
925
926 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
927
928 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
929
930 ACPI_SERIAL_BEGIN(ibm);
931
932 for (int i = 0; i < 8; ++i) {
933 temp_cmd[3] = '0' + i;
934
935 /*
936 * The TMPx methods seem to return +/- 128 or 0
937 * when the respecting sensor is not available
938 */
939 if (ACPI_FAILURE(acpi_GetInteger(sc->ec_handle, temp_cmd,
940 &temp[i])) || ABS(temp[i]) == 128 || temp[i] == 0)
941 temp[i] = -1;
942 else if (sc->thermal_updt_supported)
943 /* Temperature is reported in tenth of Kelvin */
944 temp[i] = (temp[i] - 2732 + 5) / 10;
945 }
946
947 error = sysctl_handle_opaque(oidp, &temp, 8*sizeof(int), req);
948
949 ACPI_SERIAL_END(ibm);
950 return (error);
951 }
952
953 static int
acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS)954 acpi_ibm_handlerevents_sysctl(SYSCTL_HANDLER_ARGS)
955 {
956 struct acpi_ibm_softc *sc;
957 int error = 0;
958 struct sbuf sb;
959 char *cp, *ep;
960 int l, val;
961 unsigned int handler_events;
962 char temp[128];
963
964 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
965
966 sc = (struct acpi_ibm_softc *)oidp->oid_arg1;
967
968 if (sbuf_new(&sb, NULL, 128, SBUF_AUTOEXTEND) == NULL)
969 return (ENOMEM);
970
971 ACPI_SERIAL_BEGIN(ibm);
972
973 /* Get old values if this is a get request. */
974 if (req->newptr == NULL) {
975 for (int i = 0; i < 8 * sizeof(sc->handler_events); i++)
976 if (sc->handler_events & (1 << i))
977 sbuf_printf(&sb, "0x%02x ", i + 1);
978 if (sbuf_len(&sb) == 0)
979 sbuf_printf(&sb, "NONE");
980 }
981
982 sbuf_trim(&sb);
983 sbuf_finish(&sb);
984 strlcpy(temp, sbuf_data(&sb), sizeof(temp));
985 sbuf_delete(&sb);
986
987 error = sysctl_handle_string(oidp, temp, sizeof(temp), req);
988
989 /* Check for error or no change */
990 if (error != 0 || req->newptr == NULL)
991 goto out;
992
993 /* If the user is setting a string, parse it. */
994 handler_events = 0;
995 cp = temp;
996 while (*cp) {
997 if (isspace(*cp)) {
998 cp++;
999 continue;
1000 }
1001
1002 ep = cp;
1003
1004 while (*ep && !isspace(*ep))
1005 ep++;
1006
1007 l = ep - cp;
1008 if (l == 0)
1009 break;
1010
1011 if (strncmp(cp, "NONE", 4) == 0) {
1012 cp = ep;
1013 continue;
1014 }
1015
1016 if (l >= 3 && cp[0] == '0' && (cp[1] == 'X' || cp[1] == 'x'))
1017 val = strtoul(cp, &ep, 16);
1018 else
1019 val = strtoul(cp, &ep, 10);
1020
1021 if (val == 0 || ep == cp || val >= 8 * sizeof(handler_events)) {
1022 cp[l] = '\0';
1023 device_printf(sc->dev, "invalid event code: %s\n", cp);
1024 error = EINVAL;
1025 goto out;
1026 }
1027
1028 handler_events |= 1 << (val - 1);
1029
1030 cp = ep;
1031 }
1032
1033 sc->handler_events = handler_events;
1034 out:
1035 ACPI_SERIAL_END(ibm);
1036 return (error);
1037 }
1038
1039 static int
acpi_ibm_brightness_set(struct acpi_ibm_softc * sc,int arg)1040 acpi_ibm_brightness_set(struct acpi_ibm_softc *sc, int arg)
1041 {
1042 int val, step;
1043 UINT64 val_ec;
1044 ACPI_OBJECT Arg;
1045 ACPI_OBJECT_LIST Args;
1046 ACPI_STATUS status;
1047
1048 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1049 ACPI_SERIAL_ASSERT(ibm);
1050
1051 if (arg < 0 || arg > 7)
1052 return (EINVAL);
1053
1054 /* Read the current brightness */
1055 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS, &val_ec, 1);
1056 if (ACPI_FAILURE(status))
1057 return (status);
1058
1059 if (sc->cmos_handle) {
1060 val = val_ec & IBM_EC_MASK_BRI;
1061
1062 Args.Count = 1;
1063 Args.Pointer = &Arg;
1064 Arg.Type = ACPI_TYPE_INTEGER;
1065 Arg.Integer.Value = (arg > val) ? IBM_CMOS_BRIGHTNESS_UP :
1066 IBM_CMOS_BRIGHTNESS_DOWN;
1067
1068 step = (arg > val) ? 1 : -1;
1069 for (int i = val; i != arg; i += step) {
1070 status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1071 &Args, NULL);
1072 if (ACPI_FAILURE(status)) {
1073 /* Record the last value */
1074 if (i != val) {
1075 ACPI_EC_WRITE(sc->ec_dev,
1076 IBM_EC_BRIGHTNESS, i - step, 1);
1077 }
1078 return (status);
1079 }
1080 }
1081 }
1082
1083 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_BRIGHTNESS, arg, 1);
1084 }
1085
1086 static int
acpi_ibm_bluetooth_set(struct acpi_ibm_softc * sc,int arg)1087 acpi_ibm_bluetooth_set(struct acpi_ibm_softc *sc, int arg)
1088 {
1089 int val;
1090
1091 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1092 ACPI_SERIAL_ASSERT(ibm);
1093
1094 if (arg < 0 || arg > 1)
1095 return (EINVAL);
1096
1097 val = (arg == 1) ? sc->wlan_bt_flags | IBM_NAME_MASK_BT :
1098 sc->wlan_bt_flags & (~IBM_NAME_MASK_BT);
1099 return acpi_SetInteger(sc->handle, IBM_NAME_WLAN_BT_SET, val);
1100 }
1101
1102 static int
acpi_ibm_thinklight_set(struct acpi_ibm_softc * sc,int arg)1103 acpi_ibm_thinklight_set(struct acpi_ibm_softc *sc, int arg)
1104 {
1105 ACPI_OBJECT Arg;
1106 ACPI_OBJECT_LIST Args;
1107 ACPI_STATUS status;
1108
1109 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1110 ACPI_SERIAL_ASSERT(ibm);
1111
1112 if (arg < 0 || arg > 1)
1113 return (EINVAL);
1114
1115 if (sc->light_set_supported) {
1116 Args.Count = 1;
1117 Args.Pointer = &Arg;
1118 Arg.Type = ACPI_TYPE_INTEGER;
1119 Arg.Integer.Value = arg ? sc->light_cmd_on : sc->light_cmd_off;
1120
1121 status = AcpiEvaluateObject(sc->light_handle, NULL,
1122 &Args, NULL);
1123 if (ACPI_SUCCESS(status))
1124 sc->light_val = arg;
1125 return (status);
1126 }
1127
1128 return (0);
1129 }
1130
1131 static int
acpi_ibm_volume_set(struct acpi_ibm_softc * sc,int arg)1132 acpi_ibm_volume_set(struct acpi_ibm_softc *sc, int arg)
1133 {
1134 int val, step;
1135 UINT64 val_ec;
1136 ACPI_OBJECT Arg;
1137 ACPI_OBJECT_LIST Args;
1138 ACPI_STATUS status;
1139
1140 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1141 ACPI_SERIAL_ASSERT(ibm);
1142
1143 if (arg < 0 || arg > 14)
1144 return (EINVAL);
1145
1146 /* Read the current volume */
1147 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1148 if (ACPI_FAILURE(status))
1149 return (status);
1150
1151 if (sc->cmos_handle) {
1152 val = val_ec & IBM_EC_MASK_VOL;
1153
1154 Args.Count = 1;
1155 Args.Pointer = &Arg;
1156 Arg.Type = ACPI_TYPE_INTEGER;
1157 Arg.Integer.Value = (arg > val) ? IBM_CMOS_VOLUME_UP :
1158 IBM_CMOS_VOLUME_DOWN;
1159
1160 step = (arg > val) ? 1 : -1;
1161 for (int i = val; i != arg; i += step) {
1162 status = AcpiEvaluateObject(sc->cmos_handle, NULL,
1163 &Args, NULL);
1164 if (ACPI_FAILURE(status)) {
1165 /* Record the last value */
1166 if (i != val) {
1167 val_ec = i - step +
1168 (val_ec & (~IBM_EC_MASK_VOL));
1169 ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME,
1170 val_ec, 1);
1171 }
1172 return (status);
1173 }
1174 }
1175 }
1176
1177 val_ec = arg + (val_ec & (~IBM_EC_MASK_VOL));
1178 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1);
1179 }
1180
1181 static int
acpi_ibm_mute_set(struct acpi_ibm_softc * sc,int arg)1182 acpi_ibm_mute_set(struct acpi_ibm_softc *sc, int arg)
1183 {
1184 UINT64 val_ec;
1185 ACPI_OBJECT Arg;
1186 ACPI_OBJECT_LIST Args;
1187 ACPI_STATUS status;
1188
1189 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
1190 ACPI_SERIAL_ASSERT(ibm);
1191
1192 if (arg < 0 || arg > 1)
1193 return (EINVAL);
1194
1195 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1196 if (ACPI_FAILURE(status))
1197 return (status);
1198
1199 if (sc->cmos_handle) {
1200 Args.Count = 1;
1201 Args.Pointer = &Arg;
1202 Arg.Type = ACPI_TYPE_INTEGER;
1203 Arg.Integer.Value = IBM_CMOS_VOLUME_MUTE;
1204
1205 status = AcpiEvaluateObject(sc->cmos_handle, NULL, &Args, NULL);
1206 if (ACPI_FAILURE(status))
1207 return (status);
1208 }
1209
1210 val_ec = (arg == 1) ? val_ec | IBM_EC_MASK_MUTE :
1211 val_ec & (~IBM_EC_MASK_MUTE);
1212 return ACPI_EC_WRITE(sc->ec_dev, IBM_EC_VOLUME, val_ec, 1);
1213 }
1214
1215 static void
acpi_ibm_eventhandler(struct acpi_ibm_softc * sc,int arg)1216 acpi_ibm_eventhandler(struct acpi_ibm_softc *sc, int arg)
1217 {
1218 int val;
1219 UINT64 val_ec;
1220 ACPI_STATUS status;
1221
1222 ACPI_SERIAL_BEGIN(ibm);
1223 switch (arg) {
1224 case IBM_EVENT_SUSPEND_TO_RAM:
1225 power_pm_suspend(POWER_SLEEP_STATE_SUSPEND);
1226 break;
1227
1228 case IBM_EVENT_BLUETOOTH:
1229 acpi_ibm_bluetooth_set(sc, (sc->wlan_bt_flags == 0));
1230 break;
1231
1232 case IBM_EVENT_BRIGHTNESS_UP:
1233 case IBM_EVENT_BRIGHTNESS_DOWN:
1234 /* Read the current brightness */
1235 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_BRIGHTNESS,
1236 &val_ec, 1);
1237 if (ACPI_FAILURE(status))
1238 return;
1239
1240 val = val_ec & IBM_EC_MASK_BRI;
1241 val = (arg == IBM_EVENT_BRIGHTNESS_UP) ? val + 1 : val - 1;
1242 acpi_ibm_brightness_set(sc, val);
1243 break;
1244
1245 case IBM_EVENT_THINKLIGHT:
1246 acpi_ibm_thinklight_set(sc, (sc->light_val == 0));
1247 break;
1248
1249 case IBM_EVENT_VOLUME_UP:
1250 case IBM_EVENT_VOLUME_DOWN:
1251 /* Read the current volume */
1252 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1253 if (ACPI_FAILURE(status))
1254 return;
1255
1256 val = val_ec & IBM_EC_MASK_VOL;
1257 val = (arg == IBM_EVENT_VOLUME_UP) ? val + 1 : val - 1;
1258 acpi_ibm_volume_set(sc, val);
1259 break;
1260
1261 case IBM_EVENT_MUTE:
1262 /* Read the current value */
1263 status = ACPI_EC_READ(sc->ec_dev, IBM_EC_VOLUME, &val_ec, 1);
1264 if (ACPI_FAILURE(status))
1265 return;
1266
1267 val = ((val_ec & IBM_EC_MASK_MUTE) == IBM_EC_MASK_MUTE);
1268 acpi_ibm_mute_set(sc, (val == 0));
1269 break;
1270
1271 default:
1272 break;
1273 }
1274 ACPI_SERIAL_END(ibm);
1275 }
1276
1277 static void
acpi_ibm_notify(ACPI_HANDLE h,UINT32 notify,void * context)1278 acpi_ibm_notify(ACPI_HANDLE h, UINT32 notify, void *context)
1279 {
1280 int event, arg, type;
1281 device_t dev = context;
1282 struct acpi_ibm_softc *sc = device_get_softc(dev);
1283
1284 ACPI_FUNCTION_TRACE_U32((char *)(uintptr_t)__func__, notify);
1285
1286 if (notify != 0x80)
1287 device_printf(dev, "Unknown notify\n");
1288
1289 for (;;) {
1290 acpi_GetInteger(acpi_get_handle(dev), IBM_NAME_EVENTS_GET, &event);
1291 if (event == 0)
1292 break;
1293
1294
1295 type = (event >> 12) & 0xf;
1296 arg = event & 0xfff;
1297 switch (type) {
1298 case 1:
1299 if (!(sc->events_availmask & (1 << (arg - 1)))) {
1300 device_printf(dev, "Unknown key %d\n", arg);
1301 break;
1302 }
1303
1304 /* Execute event handler */
1305 if (sc->handler_events & (1 << (arg - 1)))
1306 acpi_ibm_eventhandler(sc, (arg & 0xff));
1307
1308 /* Notify devd(8) */
1309 acpi_UserNotify("IBM", h, (arg & 0xff));
1310 break;
1311 default:
1312 break;
1313 }
1314 }
1315 }
1316