1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2007, 2008 Rui Paulo <rpaulo@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29
30 /*
31 * Driver for Apple's System Management Console (SMC).
32 * SMC can be found on the MacBook, MacBook Pro and Mac Mini.
33 *
34 * Inspired by the Linux applesmc driver.
35 */
36
37 #include "opt_asmc.h"
38
39 #include <sys/param.h>
40 #include <sys/bus.h>
41 #include <sys/conf.h>
42 #include <sys/endian.h>
43 #include <sys/kernel.h>
44 #include <sys/lock.h>
45 #include <sys/malloc.h>
46 #include <sys/module.h>
47 #include <sys/mutex.h>
48 #include <sys/sysctl.h>
49 #include <sys/systm.h>
50 #include <sys/taskqueue.h>
51 #include <sys/rman.h>
52
53 #include <machine/resource.h>
54 #include <netinet/in.h>
55
56 #include <contrib/dev/acpica/include/acpi.h>
57
58 #include <dev/acpica/acpivar.h>
59 #include <dev/asmc/asmcvar.h>
60
61 #include <dev/backlight/backlight.h>
62 #include "backlight_if.h"
63
64 /*
65 * Device interface.
66 */
67 static int asmc_probe(device_t dev);
68 static int asmc_attach(device_t dev);
69 static int asmc_detach(device_t dev);
70 static int asmc_resume(device_t dev);
71
72 /*
73 * Backlight interface.
74 */
75 static int asmc_backlight_update_status(device_t dev,
76 struct backlight_props *props);
77 static int asmc_backlight_get_status(device_t dev,
78 struct backlight_props *props);
79 static int asmc_backlight_get_info(device_t dev, struct backlight_info *info);
80
81 /*
82 * SMC functions.
83 */
84 static int asmc_init(device_t dev);
85 static int asmc_command(device_t dev, uint8_t command);
86 static int asmc_wait(device_t dev, uint8_t val);
87 static int asmc_wait_ack(device_t dev, uint8_t val, int amount);
88 static int asmc_key_write(device_t dev, const char *key, uint8_t *buf,
89 uint8_t len);
90 static int asmc_key_read(device_t dev, const char *key, uint8_t *buf,
91 uint8_t);
92 static int asmc_fan_count(device_t dev);
93 static int asmc_fan_getvalue(device_t dev, const char *key, int fan);
94 static int asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed);
95 static int asmc_temp_getvalue(device_t dev, const char *key);
96 static int asmc_sms_read(device_t, const char *key, int16_t *val);
97 static void asmc_sms_calibrate(device_t dev);
98 static int asmc_sms_intrfast(void *arg);
99 static void asmc_sms_printintr(device_t dev, uint8_t);
100 static void asmc_sms_task(void *arg, int pending);
101 #ifdef ASMC_DEBUG
102 void asmc_dumpall(device_t);
103 static int asmc_key_dump(device_t, int);
104 #endif
105
106 /*
107 * Model functions.
108 */
109 static int asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS);
110 static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS);
111 static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS);
112 static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS);
113 static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS);
114 static int asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS);
115 static int asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS);
116 static int asmc_temp_sysctl(SYSCTL_HANDLER_ARGS);
117 static int asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS);
118 static int asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS);
119 static int asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS);
120 static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS);
121 static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS);
122 static int asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS);
123 static int asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS);
124 static int asmc_wol_sysctl(SYSCTL_HANDLER_ARGS);
125
126 struct asmc_model {
127 const char *smc_model; /* smbios.system.product env var. */
128 const char *smc_desc; /* driver description */
129
130 /* Helper functions */
131 int (*smc_sms_x)(SYSCTL_HANDLER_ARGS);
132 int (*smc_sms_y)(SYSCTL_HANDLER_ARGS);
133 int (*smc_sms_z)(SYSCTL_HANDLER_ARGS);
134 int (*smc_fan_id)(SYSCTL_HANDLER_ARGS);
135 int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS);
136 int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS);
137 int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS);
138 int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS);
139 int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS);
140 int (*smc_light_left)(SYSCTL_HANDLER_ARGS);
141 int (*smc_light_right)(SYSCTL_HANDLER_ARGS);
142 int (*smc_light_control)(SYSCTL_HANDLER_ARGS);
143
144 const char *smc_temps[ASMC_TEMP_MAX];
145 const char *smc_tempnames[ASMC_TEMP_MAX];
146 const char *smc_tempdescs[ASMC_TEMP_MAX];
147 };
148
149 static const struct asmc_model *asmc_match(device_t dev);
150
151 #define ASMC_SMS_FUNCS \
152 .smc_sms_x = asmc_mb_sysctl_sms_x, \
153 .smc_sms_y = asmc_mb_sysctl_sms_y, \
154 .smc_sms_z = asmc_mb_sysctl_sms_z
155
156 #define ASMC_SMS_FUNCS_DISABLED \
157 .smc_sms_x = NULL, \
158 .smc_sms_y = NULL, \
159 .smc_sms_z = NULL
160
161 #define ASMC_FAN_FUNCS \
162 .smc_fan_id = asmc_mb_sysctl_fanid, \
163 .smc_fan_speed = asmc_mb_sysctl_fanspeed, \
164 .smc_fan_safespeed = asmc_mb_sysctl_fansafespeed, \
165 .smc_fan_minspeed = asmc_mb_sysctl_fanminspeed, \
166 .smc_fan_maxspeed = asmc_mb_sysctl_fanmaxspeed, \
167 .smc_fan_targetspeed = asmc_mb_sysctl_fantargetspeed
168
169 #define ASMC_FAN_FUNCS2 \
170 .smc_fan_id = asmc_mb_sysctl_fanid, \
171 .smc_fan_speed = asmc_mb_sysctl_fanspeed, \
172 .smc_fan_safespeed = NULL, \
173 .smc_fan_minspeed = asmc_mb_sysctl_fanminspeed, \
174 .smc_fan_maxspeed = asmc_mb_sysctl_fanmaxspeed, \
175 .smc_fan_targetspeed = asmc_mb_sysctl_fantargetspeed
176
177 #define ASMC_LIGHT_FUNCS \
178 .smc_light_left = asmc_mbp_sysctl_light_left, \
179 .smc_light_right = asmc_mbp_sysctl_light_right, \
180 .smc_light_control = asmc_mbp_sysctl_light_control
181
182 #define ASMC_LIGHT_FUNCS_10BYTE \
183 .smc_light_left = asmc_mbp_sysctl_light_left_10byte, \
184 .smc_light_right = NULL, \
185 .smc_light_control = asmc_mbp_sysctl_light_control
186
187 #define ASMC_LIGHT_FUNCS_DISABLED \
188 .smc_light_left = NULL, \
189 .smc_light_right = NULL, \
190 .smc_light_control = NULL
191
192 #define ASMC_TEMPS_FUNCS_DISABLED \
193 .smc_temps = {}, \
194 .smc_tempnames = {}, \
195 .smc_tempdescs = {} \
196
197 static const struct asmc_model asmc_models[] = {
198 {
199 "MacBook1,1", "Apple SMC MacBook Core Duo",
200 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED,
201 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS
202 },
203
204 {
205 "MacBook2,1", "Apple SMC MacBook Core 2 Duo",
206 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED,
207 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS
208 },
209
210 {
211 "MacBook3,1", "Apple SMC MacBook Core 2 Duo",
212 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED,
213 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS
214 },
215
216 {
217 "MacBook7,1", "Apple SMC MacBook Core 2 Duo (mid 2010)",
218 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS_DISABLED,
219 ASMC_MB71_TEMPS, ASMC_MB71_TEMPNAMES, ASMC_MB71_TEMPDESCS
220 },
221
222 {
223 "MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)",
224 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
225 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
226 },
227
228 {
229 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)",
230 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
231 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
232 },
233
234 {
235 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)",
236 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
237 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
238 },
239
240 {
241 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)",
242 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
243 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
244 },
245
246 {
247 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)",
248 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
249 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
250 },
251
252 {
253 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)",
254 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
255 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
256 },
257
258 {
259 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)",
260 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
261 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS
262 },
263
264 {
265 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)",
266 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
267 ASMC_MBP51_TEMPS, ASMC_MBP51_TEMPNAMES, ASMC_MBP51_TEMPDESCS
268 },
269
270 {
271 "MacBookPro5,5", "Apple SMC MacBook Pro Core 2 Duo (Mid 2009)",
272 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
273 ASMC_MBP55_TEMPS, ASMC_MBP55_TEMPNAMES, ASMC_MBP55_TEMPDESCS
274 },
275
276 {
277 "MacBookPro6,2", "Apple SMC MacBook Pro (Mid 2010, 15-inch)",
278 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
279 ASMC_MBP62_TEMPS, ASMC_MBP62_TEMPNAMES, ASMC_MBP62_TEMPDESCS
280 },
281
282 {
283 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)",
284 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
285 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS
286 },
287
288 {
289 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)",
290 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
291 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS
292 },
293
294 {
295 "MacBookPro8,3", "Apple SMC MacBook Pro (early 2011, 17-inch)",
296 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
297 ASMC_MBP83_TEMPS, ASMC_MBP83_TEMPNAMES, ASMC_MBP83_TEMPDESCS
298 },
299
300 {
301 "MacBookPro9,1", "Apple SMC MacBook Pro (mid 2012, 15-inch)",
302 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
303 ASMC_MBP91_TEMPS, ASMC_MBP91_TEMPNAMES, ASMC_MBP91_TEMPDESCS
304 },
305
306 {
307 "MacBookPro9,2", "Apple SMC MacBook Pro (mid 2012, 13-inch)",
308 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
309 ASMC_MBP92_TEMPS, ASMC_MBP92_TEMPNAMES, ASMC_MBP92_TEMPDESCS
310 },
311
312 {
313 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)",
314 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
315 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS
316 },
317
318 {
319 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)",
320 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
321 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS
322 },
323
324 {
325 "MacBookPro11,4", "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch)",
326 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
327 ASMC_MBP114_TEMPS, ASMC_MBP114_TEMPNAMES, ASMC_MBP114_TEMPDESCS
328 },
329
330 {
331 "MacBookPro11,5",
332 "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch, AMD GPU)",
333 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
334 ASMC_MBP115_TEMPS, ASMC_MBP115_TEMPNAMES, ASMC_MBP115_TEMPDESCS
335 },
336
337 /* The Mac Mini has no SMS */
338 {
339 "Macmini1,1", "Apple SMC Mac Mini",
340 ASMC_SMS_FUNCS_DISABLED,
341 ASMC_FAN_FUNCS,
342 ASMC_LIGHT_FUNCS_DISABLED,
343 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS
344 },
345
346 /* The Mac Mini 2,1 has no SMS */
347 {
348 "Macmini2,1", "Apple SMC Mac Mini 2,1",
349 ASMC_SMS_FUNCS_DISABLED,
350 ASMC_FAN_FUNCS,
351 ASMC_LIGHT_FUNCS_DISABLED,
352 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS
353 },
354
355 /* The Mac Mini 3,1 has no SMS */
356 {
357 "Macmini3,1", "Apple SMC Mac Mini 3,1",
358 ASMC_SMS_FUNCS_DISABLED,
359 ASMC_FAN_FUNCS,
360 ASMC_LIGHT_FUNCS_DISABLED,
361 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS
362 },
363
364 /* The Mac Mini 4,1 (Mid-2010) has no SMS */
365 {
366 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)",
367 ASMC_SMS_FUNCS_DISABLED,
368 ASMC_FAN_FUNCS2,
369 ASMC_LIGHT_FUNCS_DISABLED,
370 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS
371 },
372
373 /* The Mac Mini 5,1 has no SMS */
374 /* - same sensors as Mac Mini 5,2 */
375 {
376 "Macmini5,1", "Apple SMC Mac Mini 5,1",
377 ASMC_SMS_FUNCS_DISABLED,
378 ASMC_FAN_FUNCS2,
379 ASMC_LIGHT_FUNCS_DISABLED,
380 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS
381 },
382
383 /* The Mac Mini 5,2 has no SMS */
384 {
385 "Macmini5,2", "Apple SMC Mac Mini 5,2",
386 ASMC_SMS_FUNCS_DISABLED,
387 ASMC_FAN_FUNCS2,
388 ASMC_LIGHT_FUNCS_DISABLED,
389 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS
390 },
391
392 /* The Mac Mini 5,3 has no SMS */
393 /* - same sensors as Mac Mini 5,2 */
394 {
395 "Macmini5,3", "Apple SMC Mac Mini 5,3",
396 ASMC_SMS_FUNCS_DISABLED,
397 ASMC_FAN_FUNCS2,
398 ASMC_LIGHT_FUNCS_DISABLED,
399 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS
400 },
401
402 /* The Mac Mini 6,1 has no SMS */
403 {
404 "Macmini6,1", "Apple SMC Mac Mini 6,1",
405 ASMC_SMS_FUNCS_DISABLED,
406 ASMC_FAN_FUNCS2,
407 ASMC_LIGHT_FUNCS_DISABLED,
408 ASMC_MM61_TEMPS, ASMC_MM61_TEMPNAMES, ASMC_MM61_TEMPDESCS
409 },
410
411 /* The Mac Mini 6,2 has no SMS */
412 {
413 "Macmini6,2", "Apple SMC Mac Mini 6,2",
414 ASMC_SMS_FUNCS_DISABLED,
415 ASMC_FAN_FUNCS2,
416 ASMC_LIGHT_FUNCS_DISABLED,
417 ASMC_MM62_TEMPS, ASMC_MM62_TEMPNAMES, ASMC_MM62_TEMPDESCS
418 },
419
420 /* The Mac Mini 7,1 has no SMS */
421 {
422 "Macmini7,1", "Apple SMC Mac Mini 7,1",
423 ASMC_SMS_FUNCS_DISABLED,
424 ASMC_FAN_FUNCS2,
425 ASMC_LIGHT_FUNCS_DISABLED,
426 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS
427 },
428
429 /* Idem for the Mac Pro "Quad Core" (original) */
430 {
431 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)",
432 ASMC_SMS_FUNCS_DISABLED,
433 ASMC_FAN_FUNCS,
434 ASMC_LIGHT_FUNCS_DISABLED,
435 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS
436 },
437
438 /* Idem for the Mac Pro (Early 2008) */
439 {
440 "MacPro3,1", "Apple SMC Mac Pro (Early 2008)",
441 ASMC_SMS_FUNCS_DISABLED,
442 ASMC_FAN_FUNCS,
443 ASMC_LIGHT_FUNCS_DISABLED,
444 ASMC_MP31_TEMPS, ASMC_MP31_TEMPNAMES, ASMC_MP31_TEMPDESCS
445 },
446
447 /* Idem for the Mac Pro (8-core) */
448 {
449 "MacPro2", "Apple SMC Mac Pro (8-core)",
450 ASMC_SMS_FUNCS_DISABLED,
451 ASMC_FAN_FUNCS,
452 ASMC_LIGHT_FUNCS_DISABLED,
453 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS
454 },
455
456 /* Idem for the MacPro 2010*/
457 {
458 "MacPro5,1", "Apple SMC MacPro (2010)",
459 ASMC_SMS_FUNCS_DISABLED,
460 ASMC_FAN_FUNCS,
461 ASMC_LIGHT_FUNCS_DISABLED,
462 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS
463 },
464
465 /* Idem for the Mac Pro 2013 (cylinder) */
466 {
467 "MacPro6,1", "Apple SMC Mac Pro (2013)",
468 ASMC_SMS_FUNCS_DISABLED,
469 ASMC_FAN_FUNCS2,
470 ASMC_LIGHT_FUNCS_DISABLED,
471 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS
472 },
473
474 {
475 "MacBookAir1,1", "Apple SMC MacBook Air",
476 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED,
477 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS
478 },
479
480 {
481 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)",
482 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED,
483 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS
484 },
485
486 {
487 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)",
488 ASMC_SMS_FUNCS_DISABLED,
489 ASMC_FAN_FUNCS2,
490 ASMC_LIGHT_FUNCS,
491 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS
492 },
493
494 {
495 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)",
496 ASMC_SMS_FUNCS_DISABLED,
497 ASMC_FAN_FUNCS2,
498 ASMC_LIGHT_FUNCS,
499 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS
500 },
501
502 {
503 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)",
504 ASMC_SMS_FUNCS_DISABLED,
505 ASMC_FAN_FUNCS2,
506 ASMC_LIGHT_FUNCS,
507 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS
508 },
509
510 {
511 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)",
512 ASMC_SMS_FUNCS_DISABLED,
513 ASMC_FAN_FUNCS2,
514 ASMC_LIGHT_FUNCS,
515 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS
516 },
517 {
518 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)",
519 ASMC_SMS_FUNCS_DISABLED,
520 ASMC_FAN_FUNCS2,
521 ASMC_LIGHT_FUNCS_10BYTE,
522 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS
523 },
524 {
525 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)",
526 ASMC_SMS_FUNCS_DISABLED,
527 ASMC_FAN_FUNCS2,
528 ASMC_LIGHT_FUNCS_10BYTE,
529 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS
530 },
531 {
532 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)",
533 ASMC_SMS_FUNCS_DISABLED,
534 ASMC_FAN_FUNCS2,
535 ASMC_LIGHT_FUNCS,
536 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS
537 },
538 {
539 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)",
540 ASMC_SMS_FUNCS_DISABLED,
541 ASMC_FAN_FUNCS2,
542 ASMC_LIGHT_FUNCS,
543 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS
544 }
545 };
546
547 static const struct asmc_model asmc_generic_models[] = {
548 {
549 .smc_model = "MacBookAir",
550 .smc_desc = NULL,
551 ASMC_SMS_FUNCS_DISABLED,
552 ASMC_FAN_FUNCS2,
553 ASMC_LIGHT_FUNCS,
554 ASMC_TEMPS_FUNCS_DISABLED
555 },
556 {
557 .smc_model = "MacBookPro",
558 .smc_desc = NULL,
559 ASMC_SMS_FUNCS_DISABLED,
560 ASMC_FAN_FUNCS2,
561 ASMC_LIGHT_FUNCS,
562 ASMC_TEMPS_FUNCS_DISABLED
563 },
564 {
565 .smc_model = "MacPro",
566 .smc_desc = NULL,
567 ASMC_SMS_FUNCS_DISABLED,
568 ASMC_FAN_FUNCS2,
569 ASMC_LIGHT_FUNCS_DISABLED,
570 ASMC_TEMPS_FUNCS_DISABLED
571 },
572 {
573 .smc_model = "Macmini",
574 .smc_desc = NULL,
575 ASMC_SMS_FUNCS_DISABLED,
576 ASMC_FAN_FUNCS2,
577 ASMC_LIGHT_FUNCS_DISABLED,
578 ASMC_TEMPS_FUNCS_DISABLED
579 }
580 };
581
582 #undef ASMC_SMS_FUNCS
583 #undef ASMC_SMS_FUNCS_DISABLED
584 #undef ASMC_FAN_FUNCS
585 #undef ASMC_FAN_FUNCS2
586 #undef ASMC_LIGHT_FUNCS
587
588 /*
589 * Driver methods.
590 */
591 static device_method_t asmc_methods[] = {
592 DEVMETHOD(device_probe, asmc_probe),
593 DEVMETHOD(device_attach, asmc_attach),
594 DEVMETHOD(device_detach, asmc_detach),
595 DEVMETHOD(device_resume, asmc_resume),
596
597 /* Backlight interface */
598 DEVMETHOD(backlight_update_status, asmc_backlight_update_status),
599 DEVMETHOD(backlight_get_status, asmc_backlight_get_status),
600 DEVMETHOD(backlight_get_info, asmc_backlight_get_info),
601
602 DEVMETHOD_END
603 };
604
605 static driver_t asmc_driver = {
606 "asmc",
607 asmc_methods,
608 sizeof(struct asmc_softc)
609 };
610
611 /*
612 * Debugging
613 */
614 #define _COMPONENT ACPI_OEM
615 ACPI_MODULE_NAME("ASMC")
616 #ifdef ASMC_DEBUG
617 #define ASMC_DPRINTF(str, ...) device_printf(dev, str, ##__VA_ARGS__)
618 #else
619 #define ASMC_DPRINTF(str, ...)
620 #endif
621
622 /* NB: can't be const */
623 static char *asmc_ids[] = { "APP0001", NULL };
624
625 static unsigned int light_control = 0;
626
627 ACPI_PNP_INFO(asmc_ids);
628 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL);
629 MODULE_DEPEND(asmc, acpi, 1, 1, 1);
630 MODULE_DEPEND(asmc, backlight, 1, 1, 1);
631
632 static const struct asmc_model *
asmc_match(device_t dev)633 asmc_match(device_t dev)
634 {
635 const struct asmc_model *model;
636 char *model_name;
637 int i;
638
639 model = NULL;
640
641 model_name = kern_getenv("smbios.system.product");
642 if (model_name == NULL)
643 goto out;
644
645 for (i = 0; i < nitems(asmc_models); i++) {
646 if (strncmp(model_name, asmc_models[i].smc_model,
647 strlen(model_name)) == 0) {
648 model = &asmc_models[i];
649 goto out;
650 }
651 }
652 for (i = 0; i < nitems(asmc_generic_models); i++) {
653 if (strncmp(model_name, asmc_generic_models[i].smc_model,
654 strlen(asmc_generic_models[i].smc_model)) == 0) {
655 model = &asmc_generic_models[i];
656 goto out;
657 }
658 }
659
660 out:
661 freeenv(model_name);
662 return (model);
663 }
664
665 static int
asmc_probe(device_t dev)666 asmc_probe(device_t dev)
667 {
668 const struct asmc_model *model;
669 const char *device_desc;
670 int rv;
671
672 if (resource_disabled("asmc", 0))
673 return (ENXIO);
674 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL);
675 if (rv > 0)
676 return (rv);
677
678 model = asmc_match(dev);
679 if (model == NULL) {
680 device_printf(dev, "model not recognized\n");
681 return (ENXIO);
682 }
683 device_desc = model->smc_desc == NULL ?
684 model->smc_model : model->smc_desc;
685 device_set_desc(dev, device_desc);
686
687 return (rv);
688 }
689
690 static int
asmc_attach(device_t dev)691 asmc_attach(device_t dev)
692 {
693 int i, j;
694 int ret;
695 char name[2];
696 struct asmc_softc *sc = device_get_softc(dev);
697 struct sysctl_ctx_list *sysctlctx;
698 struct sysctl_oid *sysctlnode;
699 const struct asmc_model *model;
700
701 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
702 &sc->sc_rid_port, RF_ACTIVE);
703 if (sc->sc_ioport == NULL) {
704 device_printf(dev, "unable to allocate IO port\n");
705 return (ENOMEM);
706 }
707
708 sysctlctx = device_get_sysctl_ctx(dev);
709 sysctlnode = device_get_sysctl_tree(dev);
710
711 model = asmc_match(dev);
712
713 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN);
714
715 sc->sc_model = model;
716 asmc_init(dev);
717
718 /*
719 * dev.asmc.n.fan.* tree.
720 */
721 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx,
722 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan",
723 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree");
724
725 for (i = 1; i <= sc->sc_nfan; i++) {
726 j = i - 1;
727 name[0] = '0' + j;
728 name[1] = 0;
729 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx,
730 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), OID_AUTO, name,
731 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Subtree");
732
733 SYSCTL_ADD_PROC(sysctlctx,
734 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
735 OID_AUTO, "id",
736 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j,
737 model->smc_fan_id, "I", "Fan ID");
738
739 SYSCTL_ADD_PROC(sysctlctx,
740 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
741 OID_AUTO, "speed",
742 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j,
743 model->smc_fan_speed, "I", "Fan speed in RPM");
744
745 SYSCTL_ADD_PROC(sysctlctx,
746 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
747 OID_AUTO, "safespeed",
748 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j,
749 model->smc_fan_safespeed, "I", "Fan safe speed in RPM");
750
751 SYSCTL_ADD_PROC(sysctlctx,
752 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
753 OID_AUTO, "minspeed",
754 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j,
755 model->smc_fan_minspeed, "I", "Fan minimum speed in RPM");
756
757 SYSCTL_ADD_PROC(sysctlctx,
758 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
759 OID_AUTO, "maxspeed",
760 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j,
761 model->smc_fan_maxspeed, "I", "Fan maximum speed in RPM");
762
763 SYSCTL_ADD_PROC(sysctlctx,
764 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
765 OID_AUTO, "targetspeed",
766 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j,
767 model->smc_fan_targetspeed, "I", "Fan target speed in RPM");
768
769 SYSCTL_ADD_PROC(sysctlctx,
770 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
771 OID_AUTO, "manual",
772 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j,
773 asmc_mb_sysctl_fanmanual, "I",
774 "Fan manual mode (0=auto, 1=manual)");
775 }
776
777 /*
778 * dev.asmc.n.temp tree.
779 */
780 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx,
781 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp",
782 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors");
783
784 for (i = 0; model->smc_temps[i]; i++) {
785 SYSCTL_ADD_PROC(sysctlctx,
786 SYSCTL_CHILDREN(sc->sc_temp_tree),
787 OID_AUTO, model->smc_tempnames[i],
788 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, i,
789 asmc_temp_sysctl, "I",
790 model->smc_tempdescs[i]);
791 }
792
793 /*
794 * dev.asmc.n.light
795 */
796 if (model->smc_light_left) {
797 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx,
798 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light",
799 CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
800 "Keyboard backlight sensors");
801
802 SYSCTL_ADD_PROC(sysctlctx,
803 SYSCTL_CHILDREN(sc->sc_light_tree),
804 OID_AUTO, "left",
805 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
806 dev, 0, model->smc_light_left, "I",
807 "Keyboard backlight left sensor");
808
809 SYSCTL_ADD_PROC(sysctlctx,
810 SYSCTL_CHILDREN(sc->sc_light_tree),
811 OID_AUTO, "right",
812 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 0,
813 model->smc_light_right, "I",
814 "Keyboard backlight right sensor");
815
816 SYSCTL_ADD_PROC(sysctlctx,
817 SYSCTL_CHILDREN(sc->sc_light_tree),
818 OID_AUTO, "control",
819 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE,
820 dev, 0, model->smc_light_control, "I",
821 "Keyboard backlight brightness control");
822
823 sc->sc_kbd_bkl = backlight_register("asmc", dev);
824 if (sc->sc_kbd_bkl == NULL) {
825 device_printf(dev, "Can not register backlight\n");
826 ret = ENXIO;
827 goto err;
828 }
829 }
830
831 if (model->smc_sms_x == NULL)
832 goto nosms;
833
834 /*
835 * dev.asmc.n.sms tree.
836 */
837 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx,
838 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms",
839 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor");
840
841 SYSCTL_ADD_PROC(sysctlctx,
842 SYSCTL_CHILDREN(sc->sc_sms_tree),
843 OID_AUTO, "x",
844 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
845 dev, 0, model->smc_sms_x, "I",
846 "Sudden Motion Sensor X value");
847
848 SYSCTL_ADD_PROC(sysctlctx,
849 SYSCTL_CHILDREN(sc->sc_sms_tree),
850 OID_AUTO, "y",
851 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
852 dev, 0, model->smc_sms_y, "I",
853 "Sudden Motion Sensor Y value");
854
855 SYSCTL_ADD_PROC(sysctlctx,
856 SYSCTL_CHILDREN(sc->sc_sms_tree),
857 OID_AUTO, "z",
858 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE,
859 dev, 0, model->smc_sms_z, "I",
860 "Sudden Motion Sensor Z value");
861
862 /*
863 * Need a taskqueue to send devctl_notify() events
864 * when the SMS interrupt us.
865 *
866 * PI_REALTIME is used due to the sensitivity of the
867 * interrupt. An interrupt from the SMS means that the
868 * disk heads should be turned off as quickly as possible.
869 *
870 * We only need to do this for the non INTR_FILTER case.
871 */
872 sc->sc_sms_tq = NULL;
873 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc);
874 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK,
875 taskqueue_thread_enqueue, &sc->sc_sms_tq);
876 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq",
877 device_get_nameunit(dev));
878 /*
879 * Allocate an IRQ for the SMS.
880 */
881 sc->sc_rid_irq = 0;
882 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_rid_irq,
883 RF_ACTIVE);
884 if (sc->sc_irq == NULL) {
885 device_printf(dev, "unable to allocate IRQ resource\n");
886 ret = ENXIO;
887 goto err;
888 }
889
890 ret = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_MISC | INTR_MPSAFE,
891 asmc_sms_intrfast, NULL, dev, &sc->sc_cookie);
892 if (ret) {
893 device_printf(dev, "unable to setup SMS IRQ\n");
894 goto err;
895 }
896
897 nosms:
898 return (0);
899
900 err:
901 asmc_detach(dev);
902
903 return (ret);
904 }
905
906 static int
asmc_detach(device_t dev)907 asmc_detach(device_t dev)
908 {
909 struct asmc_softc *sc = device_get_softc(dev);
910
911 if (sc->sc_kbd_bkl != NULL)
912 backlight_destroy(sc->sc_kbd_bkl);
913
914 if (sc->sc_sms_tq) {
915 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task);
916 taskqueue_free(sc->sc_sms_tq);
917 sc->sc_sms_tq = NULL;
918 }
919 if (sc->sc_cookie) {
920 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie);
921 sc->sc_cookie = NULL;
922 }
923 if (sc->sc_irq) {
924 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq,
925 sc->sc_irq);
926 sc->sc_irq = NULL;
927 }
928 if (sc->sc_ioport) {
929 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port,
930 sc->sc_ioport);
931 sc->sc_ioport = NULL;
932 }
933 if (mtx_initialized(&sc->sc_mtx)) {
934 mtx_destroy(&sc->sc_mtx);
935 }
936
937 return (0);
938 }
939
940 static int
asmc_resume(device_t dev)941 asmc_resume(device_t dev)
942 {
943 uint8_t buf[2];
944
945 buf[0] = light_control;
946 buf[1] = 0x00;
947 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof(buf));
948
949 return (0);
950 }
951
952 #ifdef ASMC_DEBUG
953 void
asmc_dumpall(device_t dev)954 asmc_dumpall(device_t dev)
955 {
956 struct asmc_softc *sc = device_get_softc(dev);
957 int i;
958
959 if (sc->sc_nkeys == 0) {
960 device_printf(dev, "asmc_dumpall: key count not available\n");
961 return;
962 }
963
964 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys);
965 for (i = 0; i < sc->sc_nkeys; i++)
966 asmc_key_dump(dev, i);
967 }
968 #endif
969
970 static int
asmc_init(device_t dev)971 asmc_init(device_t dev)
972 {
973 struct asmc_softc *sc = device_get_softc(dev);
974 struct sysctl_ctx_list *sysctlctx;
975 uint8_t buf[6];
976 int i, error = 1;
977
978 sysctlctx = device_get_sysctl_ctx(dev);
979
980 error = asmc_key_read(dev, ASMC_KEY_REV, buf, 6);
981 if (error != 0)
982 goto out_err;
983 device_printf(dev, "SMC revision: %x.%x%x%x\n", buf[0], buf[1], buf[2],
984 ntohs(*(uint16_t *)buf + 4));
985
986 if (sc->sc_model->smc_sms_x == NULL)
987 goto nosms;
988
989 /*
990 * We are ready to receive interrupts from the SMS.
991 */
992 buf[0] = 0x01;
993 ASMC_DPRINTF(("intok key\n"));
994 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1);
995 DELAY(50);
996
997 /*
998 * Initiate the polling intervals.
999 */
1000 buf[0] = 20; /* msecs */
1001 ASMC_DPRINTF(("low int key\n"));
1002 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1);
1003 DELAY(200);
1004
1005 buf[0] = 20; /* msecs */
1006 ASMC_DPRINTF(("high int key\n"));
1007 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1);
1008 DELAY(200);
1009
1010 buf[0] = 0x00;
1011 buf[1] = 0x60;
1012 ASMC_DPRINTF(("sms low key\n"));
1013 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2);
1014 DELAY(200);
1015
1016 buf[0] = 0x01;
1017 buf[1] = 0xc0;
1018 ASMC_DPRINTF(("sms high key\n"));
1019 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2);
1020 DELAY(200);
1021
1022 /*
1023 * I'm not sure what this key does, but it seems to be
1024 * required.
1025 */
1026 buf[0] = 0x01;
1027 ASMC_DPRINTF(("sms flag key\n"));
1028 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1);
1029 DELAY(100);
1030
1031 sc->sc_sms_intr_works = 0;
1032
1033 /*
1034 * Retry SMS initialization 1000 times
1035 * (takes approx. 2 seconds in worst case)
1036 */
1037 for (i = 0; i < 1000; i++) {
1038 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 &&
1039 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) {
1040 error = 0;
1041 sc->sc_sms_intr_works = 1;
1042 goto out;
1043 }
1044 buf[0] = ASMC_SMS_INIT1;
1045 buf[1] = ASMC_SMS_INIT2;
1046 ASMC_DPRINTF(("sms key\n"));
1047 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2);
1048 DELAY(50);
1049 }
1050 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n");
1051
1052 out:
1053 asmc_sms_calibrate(dev);
1054 nosms:
1055 /* Wake-on-LAN convenience sysctl */
1056 if (asmc_key_read(dev, ASMC_KEY_AUPO, buf, 1) == 0) {
1057 SYSCTL_ADD_PROC(sysctlctx,
1058 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
1059 OID_AUTO, "wol",
1060 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE,
1061 dev, 0, asmc_wol_sysctl, "I",
1062 "Wake-on-LAN enable (0=off, 1=on)");
1063 }
1064
1065 sc->sc_nfan = asmc_fan_count(dev);
1066 if (sc->sc_nfan > ASMC_MAXFANS) {
1067 device_printf(dev,
1068 "more than %d fans were detected. Please report this.\n",
1069 ASMC_MAXFANS);
1070 sc->sc_nfan = ASMC_MAXFANS;
1071 }
1072
1073 /*
1074 * Read and cache the number of SMC keys (32 bit buffer)
1075 */
1076 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) {
1077 sc->sc_nkeys = be32dec(buf);
1078 if (bootverbose)
1079 device_printf(dev, "number of keys: %d\n",
1080 sc->sc_nkeys);
1081 } else {
1082 sc->sc_nkeys = 0;
1083 }
1084
1085 out_err:
1086 #ifdef ASMC_DEBUG
1087 asmc_dumpall(dev);
1088 #endif
1089 return (error);
1090 }
1091
1092 /*
1093 * We need to make sure that the SMC acks the byte sent.
1094 * Just wait up to (amount * 10) ms.
1095 */
1096 static int
asmc_wait_ack(device_t dev,uint8_t val,int amount)1097 asmc_wait_ack(device_t dev, uint8_t val, int amount)
1098 {
1099 struct asmc_softc *sc = device_get_softc(dev);
1100 u_int i;
1101
1102 val = val & ASMC_STATUS_MASK;
1103
1104 for (i = 0; i < amount; i++) {
1105 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val)
1106 return (0);
1107 DELAY(10);
1108 }
1109
1110 return (1);
1111 }
1112
1113 /*
1114 * We need to make sure that the SMC acks the byte sent.
1115 * Just wait up to 100 ms.
1116 */
1117 static int
asmc_wait(device_t dev,uint8_t val)1118 asmc_wait(device_t dev, uint8_t val)
1119 {
1120 #ifdef ASMC_DEBUG
1121 struct asmc_softc *sc;
1122 #endif
1123
1124 if (asmc_wait_ack(dev, val, 1000) == 0)
1125 return (0);
1126
1127 #ifdef ASMC_DEBUG
1128 sc = device_get_softc(dev);
1129
1130 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__,
1131 val & ASMC_STATUS_MASK, ASMC_CMDPORT_READ(sc));
1132 #endif
1133 return (1);
1134 }
1135
1136 /*
1137 * Send the given command, retrying up to 10 times if
1138 * the acknowledgement fails.
1139 */
1140 static int
asmc_command(device_t dev,uint8_t command)1141 asmc_command(device_t dev, uint8_t command)
1142 {
1143 int i;
1144 struct asmc_softc *sc = device_get_softc(dev);
1145
1146 for (i = 0; i < 10; i++) {
1147 ASMC_CMDPORT_WRITE(sc, command);
1148 if (asmc_wait_ack(dev, 0x0c, 100) == 0) {
1149 return (0);
1150 }
1151 }
1152
1153 #ifdef ASMC_DEBUG
1154 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command,
1155 ASMC_CMDPORT_READ(sc));
1156 #endif
1157 return (1);
1158 }
1159
1160 static int
asmc_key_read(device_t dev,const char * key,uint8_t * buf,uint8_t len)1161 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len)
1162 {
1163 int i, error = 1, try = 0;
1164 struct asmc_softc *sc = device_get_softc(dev);
1165
1166 mtx_lock_spin(&sc->sc_mtx);
1167
1168 begin:
1169 if (asmc_command(dev, ASMC_CMDREAD))
1170 goto out;
1171
1172 for (i = 0; i < 4; i++) {
1173 ASMC_DATAPORT_WRITE(sc, key[i]);
1174 if (asmc_wait(dev, 0x04))
1175 goto out;
1176 }
1177
1178 ASMC_DATAPORT_WRITE(sc, len);
1179
1180 for (i = 0; i < len; i++) {
1181 if (asmc_wait(dev, 0x05))
1182 goto out;
1183 buf[i] = ASMC_DATAPORT_READ(sc);
1184 }
1185
1186 error = 0;
1187 out:
1188 if (error) {
1189 if (++try < 10)
1190 goto begin;
1191 device_printf(dev, "%s for key %s failed %d times, giving up\n",
1192 __func__, key, try);
1193 }
1194
1195 mtx_unlock_spin(&sc->sc_mtx);
1196
1197 return (error);
1198 }
1199
1200 #ifdef ASMC_DEBUG
1201 static int
asmc_key_dump(device_t dev,int number)1202 asmc_key_dump(device_t dev, int number)
1203 {
1204 struct asmc_softc *sc = device_get_softc(dev);
1205 char key[5] = { 0 };
1206 char type[7] = { 0 };
1207 uint8_t index[4];
1208 uint8_t v[32];
1209 uint8_t maxlen;
1210 int i, error = 1, try = 0;
1211
1212 mtx_lock_spin(&sc->sc_mtx);
1213
1214 index[0] = (number >> 24) & 0xff;
1215 index[1] = (number >> 16) & 0xff;
1216 index[2] = (number >> 8) & 0xff;
1217 index[3] = (number) & 0xff;
1218
1219 begin:
1220 if (asmc_command(dev, 0x12))
1221 goto out;
1222
1223 for (i = 0; i < 4; i++) {
1224 ASMC_DATAPORT_WRITE(sc, index[i]);
1225 if (asmc_wait(dev, 0x04))
1226 goto out;
1227 }
1228
1229 ASMC_DATAPORT_WRITE(sc, 4);
1230
1231 for (i = 0; i < 4; i++) {
1232 if (asmc_wait(dev, 0x05))
1233 goto out;
1234 key[i] = ASMC_DATAPORT_READ(sc);
1235 }
1236
1237 /* get type */
1238 if (asmc_command(dev, 0x13))
1239 goto out;
1240
1241 for (i = 0; i < 4; i++) {
1242 ASMC_DATAPORT_WRITE(sc, key[i]);
1243 if (asmc_wait(dev, 0x04))
1244 goto out;
1245 }
1246
1247 ASMC_DATAPORT_WRITE(sc, 6);
1248
1249 for (i = 0; i < 6; i++) {
1250 if (asmc_wait(dev, 0x05))
1251 goto out;
1252 type[i] = ASMC_DATAPORT_READ(sc);
1253 }
1254
1255 error = 0;
1256 out:
1257 if (error) {
1258 if (++try < 10)
1259 goto begin;
1260 device_printf(dev, "%s for key %s failed %d times, giving up\n",
1261 __func__, key, try);
1262 mtx_unlock_spin(&sc->sc_mtx);
1263 } else {
1264 char buf[1024];
1265 char buf2[8];
1266 mtx_unlock_spin(&sc->sc_mtx);
1267 maxlen = type[0];
1268 type[0] = ' ';
1269 type[5] = 0;
1270 if (maxlen > sizeof(v)) {
1271 device_printf(dev,
1272 "WARNING: cropping maxlen from %d to %zu\n", maxlen,
1273 sizeof(v));
1274 maxlen = sizeof(v);
1275 }
1276 for (i = 0; i < sizeof(v); i++) {
1277 v[i] = 0;
1278 }
1279 asmc_key_read(dev, key, v, maxlen);
1280 snprintf(buf, sizeof(buf),
1281 "key %d is: %s, type %s (len %d), data",
1282 number, key, type, maxlen);
1283 for (i = 0; i < maxlen; i++) {
1284 snprintf(buf2, sizeof(buf2), " %02x", v[i]);
1285 strlcat(buf, buf2, sizeof(buf));
1286 }
1287 strlcat(buf, " \n", sizeof(buf));
1288 device_printf(dev, "%s", buf);
1289 }
1290
1291 return (error);
1292 }
1293 #endif
1294
1295 static int
asmc_key_write(device_t dev,const char * key,uint8_t * buf,uint8_t len)1296 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len)
1297 {
1298 int i, error = -1, try = 0;
1299 struct asmc_softc *sc = device_get_softc(dev);
1300
1301 mtx_lock_spin(&sc->sc_mtx);
1302
1303 begin:
1304 ASMC_DPRINTF(("cmd port: cmd write\n"));
1305 if (asmc_command(dev, ASMC_CMDWRITE))
1306 goto out;
1307
1308 ASMC_DPRINTF(("data port: key\n"));
1309 for (i = 0; i < 4; i++) {
1310 ASMC_DATAPORT_WRITE(sc, key[i]);
1311 if (asmc_wait(dev, 0x04))
1312 goto out;
1313 }
1314 ASMC_DPRINTF(("data port: length\n"));
1315 ASMC_DATAPORT_WRITE(sc, len);
1316
1317 ASMC_DPRINTF(("data port: buffer\n"));
1318 for (i = 0; i < len; i++) {
1319 if (asmc_wait(dev, 0x04))
1320 goto out;
1321 ASMC_DATAPORT_WRITE(sc, buf[i]);
1322 }
1323
1324 error = 0;
1325 out:
1326 if (error) {
1327 if (++try < 10)
1328 goto begin;
1329 device_printf(dev, "%s for key %s failed %d times, giving up\n",
1330 __func__, key, try);
1331 }
1332
1333 mtx_unlock_spin(&sc->sc_mtx);
1334
1335 return (error);
1336 }
1337
1338 /*
1339 * Fan control functions.
1340 */
1341 static int
asmc_fan_count(device_t dev)1342 asmc_fan_count(device_t dev)
1343 {
1344 uint8_t buf[1];
1345
1346 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof(buf)) != 0)
1347 return (-1);
1348
1349 return (buf[0]);
1350 }
1351
1352 static int
asmc_fan_getvalue(device_t dev,const char * key,int fan)1353 asmc_fan_getvalue(device_t dev, const char *key, int fan)
1354 {
1355 int speed;
1356 uint8_t buf[2];
1357 char fankey[5];
1358
1359 snprintf(fankey, sizeof(fankey), key, fan);
1360 if (asmc_key_read(dev, fankey, buf, sizeof(buf)) != 0)
1361 return (-1);
1362 speed = (buf[0] << 6) | (buf[1] >> 2);
1363
1364 return (speed);
1365 }
1366
1367 static char *
asmc_fan_getstring(device_t dev,const char * key,int fan,uint8_t * buf,uint8_t buflen)1368 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf,
1369 uint8_t buflen)
1370 {
1371 char fankey[5];
1372 char *desc;
1373
1374 snprintf(fankey, sizeof(fankey), key, fan);
1375 if (asmc_key_read(dev, fankey, buf, buflen) != 0)
1376 return (NULL);
1377 desc = buf + 4;
1378
1379 return (desc);
1380 }
1381
1382 static int
asmc_fan_setvalue(device_t dev,const char * key,int fan,int speed)1383 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed)
1384 {
1385 uint8_t buf[2];
1386 char fankey[5];
1387
1388 speed *= 4;
1389
1390 buf[0] = speed >> 8;
1391 buf[1] = speed;
1392
1393 snprintf(fankey, sizeof(fankey), key, fan);
1394 if (asmc_key_write(dev, fankey, buf, sizeof(buf)) < 0)
1395 return (-1);
1396
1397 return (0);
1398 }
1399
1400 static int
asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS)1401 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS)
1402 {
1403 device_t dev = (device_t)arg1;
1404 int fan = arg2;
1405 int error;
1406 int32_t v;
1407
1408 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan);
1409 error = sysctl_handle_int(oidp, &v, 0, req);
1410
1411 return (error);
1412 }
1413
1414 static int
asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS)1415 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS)
1416 {
1417 uint8_t buf[16];
1418 device_t dev = (device_t)arg1;
1419 int fan = arg2;
1420 int error = true;
1421 char *desc;
1422
1423 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf));
1424
1425 if (desc != NULL)
1426 error = sysctl_handle_string(oidp, desc, 0, req);
1427
1428 return (error);
1429 }
1430
1431 static int
asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS)1432 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS)
1433 {
1434 device_t dev = (device_t)arg1;
1435 int fan = arg2;
1436 int error;
1437 int32_t v;
1438
1439 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan);
1440 error = sysctl_handle_int(oidp, &v, 0, req);
1441
1442 return (error);
1443 }
1444
1445 static int
asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS)1446 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS)
1447 {
1448 device_t dev = (device_t)arg1;
1449 int fan = arg2;
1450 int error;
1451 int32_t v;
1452
1453 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan);
1454 error = sysctl_handle_int(oidp, &v, 0, req);
1455
1456 if (error == 0 && req->newptr != NULL) {
1457 unsigned int newspeed = v;
1458 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed);
1459 }
1460
1461 return (error);
1462 }
1463
1464 static int
asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS)1465 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS)
1466 {
1467 device_t dev = (device_t)arg1;
1468 int fan = arg2;
1469 int error;
1470 int32_t v;
1471
1472 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan);
1473 error = sysctl_handle_int(oidp, &v, 0, req);
1474
1475 if (error == 0 && req->newptr != NULL) {
1476 unsigned int newspeed = v;
1477 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed);
1478 }
1479
1480 return (error);
1481 }
1482
1483 static int
asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS)1484 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS)
1485 {
1486 device_t dev = (device_t)arg1;
1487 int fan = arg2;
1488 int error;
1489 int32_t v;
1490
1491 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan);
1492 error = sysctl_handle_int(oidp, &v, 0, req);
1493
1494 if (error == 0 && req->newptr != NULL) {
1495 unsigned int newspeed = v;
1496 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed);
1497 }
1498
1499 return (error);
1500 }
1501
1502 static int
asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS)1503 asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS)
1504 {
1505 device_t dev = (device_t)arg1;
1506 int fan = arg2;
1507 int error;
1508 int32_t v;
1509 uint8_t buf[2];
1510 uint16_t val;
1511
1512 /* Read current FS! bitmask (asmc_key_read locks internally) */
1513 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf));
1514 if (error != 0)
1515 return (error);
1516
1517 /* Extract manual bit for this fan (big-endian) */
1518 val = (buf[0] << 8) | buf[1];
1519 v = (val >> fan) & 0x01;
1520
1521 /* Let sysctl handle the value */
1522 error = sysctl_handle_int(oidp, &v, 0, req);
1523
1524 if (error == 0 && req->newptr != NULL) {
1525 /* Validate input (0 = auto, 1 = manual) */
1526 if (v != 0 && v != 1)
1527 return (EINVAL);
1528 /* Read-modify-write of FS! bitmask */
1529 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf,
1530 sizeof(buf));
1531 if (error == 0) {
1532 val = (buf[0] << 8) | buf[1];
1533
1534 /* Modify single bit */
1535 if (v)
1536 val |= (1 << fan); /* Set to manual */
1537 else
1538 val &= ~(1 << fan); /* Set to auto */
1539
1540 /* Write back */
1541 buf[0] = val >> 8;
1542 buf[1] = val & 0xff;
1543 error = asmc_key_write(dev, ASMC_KEY_FANMANUAL, buf,
1544 sizeof(buf));
1545 }
1546 }
1547
1548 return (error);
1549 }
1550
1551 /*
1552 * Temperature functions.
1553 */
1554 static int
asmc_temp_getvalue(device_t dev,const char * key)1555 asmc_temp_getvalue(device_t dev, const char *key)
1556 {
1557 uint8_t buf[2];
1558
1559 /*
1560 * Check for invalid temperatures.
1561 */
1562 if (asmc_key_read(dev, key, buf, sizeof(buf)) != 0)
1563 return (-1);
1564
1565 return (buf[0]);
1566 }
1567
1568 static int
asmc_temp_sysctl(SYSCTL_HANDLER_ARGS)1569 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS)
1570 {
1571 device_t dev = (device_t)arg1;
1572 struct asmc_softc *sc = device_get_softc(dev);
1573 int error, val;
1574
1575 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]);
1576 error = sysctl_handle_int(oidp, &val, 0, req);
1577
1578 return (error);
1579 }
1580
1581 /*
1582 * Sudden Motion Sensor functions.
1583 */
1584 static int
asmc_sms_read(device_t dev,const char * key,int16_t * val)1585 asmc_sms_read(device_t dev, const char *key, int16_t *val)
1586 {
1587 uint8_t buf[2];
1588 int error;
1589
1590 /* no need to do locking here as asmc_key_read() already does it */
1591 switch (key[3]) {
1592 case 'X':
1593 case 'Y':
1594 case 'Z':
1595 error = asmc_key_read(dev, key, buf, sizeof(buf));
1596 break;
1597 default:
1598 device_printf(dev, "%s called with invalid argument %s\n",
1599 __func__, key);
1600 error = EINVAL;
1601 goto out;
1602 }
1603 *val = ((int16_t)buf[0] << 8) | buf[1];
1604 out:
1605 return (error);
1606 }
1607
1608 static void
asmc_sms_calibrate(device_t dev)1609 asmc_sms_calibrate(device_t dev)
1610 {
1611 struct asmc_softc *sc = device_get_softc(dev);
1612
1613 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x);
1614 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y);
1615 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z);
1616 }
1617
1618 static int
asmc_sms_intrfast(void * arg)1619 asmc_sms_intrfast(void *arg)
1620 {
1621 uint8_t type;
1622 device_t dev = (device_t)arg;
1623 struct asmc_softc *sc = device_get_softc(dev);
1624 if (!sc->sc_sms_intr_works)
1625 return (FILTER_HANDLED);
1626
1627 mtx_lock_spin(&sc->sc_mtx);
1628 type = ASMC_INTPORT_READ(sc);
1629 mtx_unlock_spin(&sc->sc_mtx);
1630
1631 sc->sc_sms_intrtype = type;
1632 asmc_sms_printintr(dev, type);
1633
1634 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task);
1635 return (FILTER_HANDLED);
1636 }
1637
1638 static void
asmc_sms_printintr(device_t dev,uint8_t type)1639 asmc_sms_printintr(device_t dev, uint8_t type)
1640 {
1641 struct asmc_softc *sc = device_get_softc(dev);
1642
1643 switch (type) {
1644 case ASMC_SMS_INTFF:
1645 device_printf(dev, "WARNING: possible free fall!\n");
1646 break;
1647 case ASMC_SMS_INTHA:
1648 device_printf(dev, "WARNING: high acceleration detected!\n");
1649 break;
1650 case ASMC_SMS_INTSH:
1651 device_printf(dev, "WARNING: possible shock!\n");
1652 break;
1653 case ASMC_ALSL_INT2A:
1654 /*
1655 * This suppresses console and log messages for the ambient
1656 * light sensor for models known to generate this interrupt.
1657 */
1658 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 ||
1659 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0)
1660 break;
1661 /* FALLTHROUGH */
1662 default:
1663 device_printf(dev, "unknown interrupt: 0x%x\n", type);
1664 }
1665 }
1666
1667 static void
asmc_sms_task(void * arg,int pending)1668 asmc_sms_task(void *arg, int pending)
1669 {
1670 struct asmc_softc *sc = (struct asmc_softc *)arg;
1671 char notify[16];
1672 int type;
1673
1674 switch (sc->sc_sms_intrtype) {
1675 case ASMC_SMS_INTFF:
1676 type = 2;
1677 break;
1678 case ASMC_SMS_INTHA:
1679 type = 1;
1680 break;
1681 case ASMC_SMS_INTSH:
1682 type = 0;
1683 break;
1684 default:
1685 type = 255;
1686 }
1687
1688 snprintf(notify, sizeof(notify), " notify=0x%x", type);
1689 devctl_notify("ACPI", "asmc", "SMS", notify);
1690 }
1691
1692 static int
asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS)1693 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS)
1694 {
1695 device_t dev = (device_t)arg1;
1696 int error;
1697 int16_t val;
1698 int32_t v;
1699
1700 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val);
1701 v = (int32_t)val;
1702 error = sysctl_handle_int(oidp, &v, 0, req);
1703
1704 return (error);
1705 }
1706
1707 static int
asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS)1708 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS)
1709 {
1710 device_t dev = (device_t)arg1;
1711 int error;
1712 int16_t val;
1713 int32_t v;
1714
1715 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val);
1716 v = (int32_t)val;
1717 error = sysctl_handle_int(oidp, &v, 0, req);
1718
1719 return (error);
1720 }
1721
1722 static int
asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS)1723 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS)
1724 {
1725 device_t dev = (device_t)arg1;
1726 int error;
1727 int16_t val;
1728 int32_t v;
1729
1730 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val);
1731 v = (int32_t)val;
1732 error = sysctl_handle_int(oidp, &v, 0, req);
1733
1734 return (error);
1735 }
1736
1737 static int
asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS)1738 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS)
1739 {
1740 device_t dev = (device_t)arg1;
1741 uint8_t buf[6];
1742 int error;
1743 int32_t v;
1744
1745 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof(buf));
1746 v = buf[2];
1747 error = sysctl_handle_int(oidp, &v, 0, req);
1748
1749 return (error);
1750 }
1751
1752 static int
asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS)1753 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS)
1754 {
1755 device_t dev = (device_t)arg1;
1756 uint8_t buf[6];
1757 int error;
1758 int32_t v;
1759
1760 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof(buf));
1761 v = buf[2];
1762 error = sysctl_handle_int(oidp, &v, 0, req);
1763
1764 return (error);
1765 }
1766
1767 static int
asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS)1768 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS)
1769 {
1770 device_t dev = (device_t)arg1;
1771 struct asmc_softc *sc = device_get_softc(dev);
1772 uint8_t buf[2];
1773 int error;
1774 int v;
1775
1776 v = light_control;
1777 error = sysctl_handle_int(oidp, &v, 0, req);
1778
1779 if (error == 0 && req->newptr != NULL) {
1780 if (v < 0 || v > 255)
1781 return (EINVAL);
1782 light_control = v;
1783 sc->sc_kbd_bkl_level = v * 100 / 255;
1784 buf[0] = light_control;
1785 buf[1] = 0x00;
1786 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof(buf));
1787 }
1788 return (error);
1789 }
1790
1791 static int
asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS)1792 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS)
1793 {
1794 device_t dev = (device_t)arg1;
1795 uint8_t buf[10];
1796 int error;
1797 uint32_t v;
1798
1799 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof(buf));
1800
1801 /*
1802 * This seems to be a 32 bit big endian value from buf[6] -> buf[9].
1803 *
1804 * Extract it out manually here, then shift/clamp it.
1805 */
1806 v = be32dec(&buf[6]);
1807
1808 /*
1809 * Shift out, clamp at 255; that way it looks like the
1810 * earlier SMC firmware version responses.
1811 */
1812 v = v >> 8;
1813 if (v > 255)
1814 v = 255;
1815
1816 error = sysctl_handle_int(oidp, &v, 0, req);
1817
1818 return (error);
1819 }
1820
1821 /*
1822 * Wake-on-LAN convenience sysctl.
1823 * Reading returns 1 if WoL is enabled, 0 if disabled.
1824 * Writing 1 enables WoL, 0 disables it.
1825 */
1826 static int
asmc_wol_sysctl(SYSCTL_HANDLER_ARGS)1827 asmc_wol_sysctl(SYSCTL_HANDLER_ARGS)
1828 {
1829 device_t dev = (device_t)arg1;
1830 uint8_t aupo;
1831 int val, error;
1832
1833 /* Read current AUPO value */
1834 if (asmc_key_read(dev, ASMC_KEY_AUPO, &aupo, 1) != 0)
1835 return (EIO);
1836
1837 val = (aupo != 0) ? 1 : 0;
1838 error = sysctl_handle_int(oidp, &val, 0, req);
1839 if (error != 0 || req->newptr == NULL)
1840 return (error);
1841
1842 /* Clamp to 0 or 1 */
1843 aupo = (val != 0) ? 1 : 0;
1844
1845 /* Write AUPO */
1846 if (asmc_key_write(dev, ASMC_KEY_AUPO, &aupo, 1) != 0)
1847 return (EIO);
1848
1849 return (0);
1850 }
1851
1852 static int
asmc_backlight_update_status(device_t dev,struct backlight_props * props)1853 asmc_backlight_update_status(device_t dev, struct backlight_props *props)
1854 {
1855 struct asmc_softc *sc = device_get_softc(dev);
1856 uint8_t buf[2];
1857
1858 sc->sc_kbd_bkl_level = props->brightness;
1859 light_control = props->brightness * 255 / 100;
1860 buf[0] = light_control;
1861 buf[1] = 0x00;
1862 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof(buf));
1863
1864 return (0);
1865 }
1866
1867 static int
asmc_backlight_get_status(device_t dev,struct backlight_props * props)1868 asmc_backlight_get_status(device_t dev, struct backlight_props *props)
1869 {
1870 struct asmc_softc *sc = device_get_softc(dev);
1871
1872 props->brightness = sc->sc_kbd_bkl_level;
1873 props->nlevels = 0;
1874
1875 return (0);
1876 }
1877
1878 static int
asmc_backlight_get_info(device_t dev,struct backlight_info * info)1879 asmc_backlight_get_info(device_t dev, struct backlight_info *info)
1880 {
1881 info->type = BACKLIGHT_TYPE_KEYBOARD;
1882 strlcpy(info->name, "Apple MacBook Keyboard", BACKLIGHTMAXNAMELENGTH);
1883
1884 return (0);
1885 }
1886