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 <sys/param.h>
38 #include <sys/bus.h>
39 #include <sys/conf.h>
40 #include <sys/endian.h>
41 #include <sys/kernel.h>
42 #include <sys/lock.h>
43 #include <sys/malloc.h>
44 #include <sys/module.h>
45 #include <sys/mutex.h>
46 #include <sys/sysctl.h>
47 #include <sys/systm.h>
48 #include <sys/taskqueue.h>
49 #include <sys/rman.h>
50
51 #include <machine/resource.h>
52
53 #include <contrib/dev/acpica/include/acpi.h>
54
55 #include <dev/acpica/acpivar.h>
56 #include <dev/asmc/asmcvar.h>
57
58 /*
59 * Device interface.
60 */
61 static int asmc_probe(device_t dev);
62 static int asmc_attach(device_t dev);
63 static int asmc_detach(device_t dev);
64 static int asmc_resume(device_t dev);
65
66 /*
67 * SMC functions.
68 */
69 static int asmc_init(device_t dev);
70 static int asmc_command(device_t dev, uint8_t command);
71 static int asmc_wait(device_t dev, uint8_t val);
72 static int asmc_wait_ack(device_t dev, uint8_t val, int amount);
73 static int asmc_key_write(device_t dev, const char *key, uint8_t *buf,
74 uint8_t len);
75 static int asmc_key_read(device_t dev, const char *key, uint8_t *buf,
76 uint8_t);
77 static int asmc_fan_count(device_t dev);
78 static int asmc_fan_getvalue(device_t dev, const char *key, int fan);
79 static int asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed);
80 static int asmc_temp_getvalue(device_t dev, const char *key);
81 static int asmc_sms_read(device_t, const char *key, int16_t *val);
82 static void asmc_sms_calibrate(device_t dev);
83 static int asmc_sms_intrfast(void *arg);
84 static void asmc_sms_printintr(device_t dev, uint8_t);
85 static void asmc_sms_task(void *arg, int pending);
86 #ifdef DEBUG
87 void asmc_dumpall(device_t);
88 static int asmc_key_dump(device_t, int);
89 #endif
90
91 /*
92 * Model functions.
93 */
94 static int asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS);
95 static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS);
96 static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS);
97 static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS);
98 static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS);
99 static int asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS);
100 static int asmc_temp_sysctl(SYSCTL_HANDLER_ARGS);
101 static int asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS);
102 static int asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS);
103 static int asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS);
104 static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS);
105 static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS);
106 static int asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS);
107 static int asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS);
108
109 struct asmc_model {
110 const char *smc_model; /* smbios.system.product env var. */
111 const char *smc_desc; /* driver description */
112
113 /* Helper functions */
114 int (*smc_sms_x)(SYSCTL_HANDLER_ARGS);
115 int (*smc_sms_y)(SYSCTL_HANDLER_ARGS);
116 int (*smc_sms_z)(SYSCTL_HANDLER_ARGS);
117 int (*smc_fan_id)(SYSCTL_HANDLER_ARGS);
118 int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS);
119 int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS);
120 int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS);
121 int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS);
122 int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS);
123 int (*smc_light_left)(SYSCTL_HANDLER_ARGS);
124 int (*smc_light_right)(SYSCTL_HANDLER_ARGS);
125 int (*smc_light_control)(SYSCTL_HANDLER_ARGS);
126
127 const char *smc_temps[ASMC_TEMP_MAX];
128 const char *smc_tempnames[ASMC_TEMP_MAX];
129 const char *smc_tempdescs[ASMC_TEMP_MAX];
130 };
131
132 static const struct asmc_model *asmc_match(device_t dev);
133
134 #define ASMC_SMS_FUNCS asmc_mb_sysctl_sms_x, asmc_mb_sysctl_sms_y, \
135 asmc_mb_sysctl_sms_z
136
137 #define ASMC_SMS_FUNCS_DISABLED NULL,NULL,NULL
138
139 #define ASMC_FAN_FUNCS asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, asmc_mb_sysctl_fansafespeed, \
140 asmc_mb_sysctl_fanminspeed, \
141 asmc_mb_sysctl_fanmaxspeed, \
142 asmc_mb_sysctl_fantargetspeed
143
144 #define ASMC_FAN_FUNCS2 asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, NULL, \
145 asmc_mb_sysctl_fanminspeed, \
146 asmc_mb_sysctl_fanmaxspeed, \
147 asmc_mb_sysctl_fantargetspeed
148
149 #define ASMC_LIGHT_FUNCS asmc_mbp_sysctl_light_left, \
150 asmc_mbp_sysctl_light_right, \
151 asmc_mbp_sysctl_light_control
152
153 #define ASMC_LIGHT_FUNCS_10BYTE \
154 asmc_mbp_sysctl_light_left_10byte, \
155 NULL, \
156 asmc_mbp_sysctl_light_control
157
158 #define ASMC_LIGHT_FUNCS_DISABLED NULL, NULL, NULL
159
160 static const struct asmc_model asmc_models[] = {
161 {
162 "MacBook1,1", "Apple SMC MacBook Core Duo",
163 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
164 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS
165 },
166
167 {
168 "MacBook2,1", "Apple SMC MacBook Core 2 Duo",
169 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
170 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS
171 },
172
173 {
174 "MacBook3,1", "Apple SMC MacBook Core 2 Duo",
175 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
176 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS
177 },
178
179 {
180 "MacBook7,1", "Apple SMC MacBook Core 2 Duo (mid 2010)",
181 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS_DISABLED,
182 ASMC_MB71_TEMPS, ASMC_MB71_TEMPNAMES, ASMC_MB71_TEMPDESCS
183 },
184
185 {
186 "MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)",
187 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
188 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
189 },
190
191 {
192 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)",
193 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
194 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
195 },
196
197 {
198 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)",
199 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
200 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
201 },
202
203 {
204 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)",
205 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
206 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
207 },
208
209 {
210 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)",
211 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
212 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
213 },
214
215 {
216 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)",
217 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
218 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
219 },
220
221 {
222 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)",
223 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
224 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS
225 },
226
227 {
228 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)",
229 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
230 ASMC_MBP51_TEMPS, ASMC_MBP51_TEMPNAMES, ASMC_MBP51_TEMPDESCS
231 },
232
233 {
234 "MacBookPro5,5", "Apple SMC MacBook Pro Core 2 Duo (Mid 2009)",
235 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
236 ASMC_MBP55_TEMPS, ASMC_MBP55_TEMPNAMES, ASMC_MBP55_TEMPDESCS
237 },
238
239 {
240 "MacBookPro6,2", "Apple SMC MacBook Pro (Mid 2010, 15-inch)",
241 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
242 ASMC_MBP62_TEMPS, ASMC_MBP62_TEMPNAMES, ASMC_MBP62_TEMPDESCS
243 },
244
245 {
246 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)",
247 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
248 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS
249 },
250
251 {
252 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)",
253 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
254 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS
255 },
256
257 {
258 "MacBookPro9,1", "Apple SMC MacBook Pro (mid 2012, 15-inch)",
259 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
260 ASMC_MBP91_TEMPS, ASMC_MBP91_TEMPNAMES, ASMC_MBP91_TEMPDESCS
261 },
262
263 {
264 "MacBookPro9,2", "Apple SMC MacBook Pro (mid 2012, 13-inch)",
265 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
266 ASMC_MBP92_TEMPS, ASMC_MBP92_TEMPNAMES, ASMC_MBP92_TEMPDESCS
267 },
268
269 {
270 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)",
271 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
272 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS
273 },
274
275 {
276 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)",
277 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
278 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS
279 },
280
281 {
282 "MacBookPro11,4", "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch)",
283 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
284 ASMC_MBP114_TEMPS, ASMC_MBP114_TEMPNAMES, ASMC_MBP114_TEMPDESCS
285 },
286
287 /* The Mac Mini has no SMS */
288 {
289 "Macmini1,1", "Apple SMC Mac Mini",
290 NULL, NULL, NULL,
291 ASMC_FAN_FUNCS,
292 NULL, NULL, NULL,
293 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS
294 },
295
296 /* The Mac Mini 2,1 has no SMS */
297 {
298 "Macmini2,1", "Apple SMC Mac Mini 2,1",
299 ASMC_SMS_FUNCS_DISABLED,
300 ASMC_FAN_FUNCS,
301 ASMC_LIGHT_FUNCS_DISABLED,
302 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS
303 },
304
305 /* The Mac Mini 3,1 has no SMS */
306 {
307 "Macmini3,1", "Apple SMC Mac Mini 3,1",
308 NULL, NULL, NULL,
309 ASMC_FAN_FUNCS,
310 NULL, NULL, NULL,
311 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS
312 },
313
314 /* The Mac Mini 4,1 (Mid-2010) has no SMS */
315 {
316 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)",
317 ASMC_SMS_FUNCS_DISABLED,
318 ASMC_FAN_FUNCS,
319 ASMC_LIGHT_FUNCS_DISABLED,
320 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS
321 },
322
323 /* The Mac Mini 5,1 has no SMS */
324 /* - same sensors as Mac Mini 5,2 */
325 {
326 "Macmini5,1", "Apple SMC Mac Mini 5,1",
327 NULL, NULL, NULL,
328 ASMC_FAN_FUNCS2,
329 NULL, NULL, NULL,
330 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS
331 },
332
333 /* The Mac Mini 5,2 has no SMS */
334 {
335 "Macmini5,2", "Apple SMC Mac Mini 5,2",
336 NULL, NULL, NULL,
337 ASMC_FAN_FUNCS2,
338 NULL, NULL, NULL,
339 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS
340 },
341
342 /* The Mac Mini 5,3 has no SMS */
343 /* - same sensors as Mac Mini 5,2 */
344 {
345 "Macmini5,3", "Apple SMC Mac Mini 5,3",
346 NULL, NULL, NULL,
347 ASMC_FAN_FUNCS2,
348 NULL, NULL, NULL,
349 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS
350 },
351
352 /* The Mac Mini 7,1 has no SMS */
353 {
354 "Macmini7,1", "Apple SMC Mac Mini 7,1",
355 NULL, NULL, NULL,
356 ASMC_FAN_FUNCS2,
357 NULL, NULL, NULL,
358 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS
359 },
360
361 /* Idem for the Mac Pro "Quad Core" (original) */
362 {
363 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)",
364 NULL, NULL, NULL,
365 ASMC_FAN_FUNCS,
366 NULL, NULL, NULL,
367 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS
368 },
369
370 /* Idem for the Mac Pro (8-core) */
371 {
372 "MacPro2", "Apple SMC Mac Pro (8-core)",
373 NULL, NULL, NULL,
374 ASMC_FAN_FUNCS,
375 NULL, NULL, NULL,
376 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS
377 },
378
379 /* Idem for the MacPro 2010*/
380 {
381 "MacPro5,1", "Apple SMC MacPro (2010)",
382 NULL, NULL, NULL,
383 ASMC_FAN_FUNCS,
384 NULL, NULL, NULL,
385 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS
386 },
387
388 /* Idem for the Mac Pro 2013 (cylinder) */
389 {
390 "MacPro6,1", "Apple SMC Mac Pro (2013)",
391 ASMC_SMS_FUNCS_DISABLED,
392 ASMC_FAN_FUNCS2,
393 ASMC_LIGHT_FUNCS_DISABLED,
394 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS
395 },
396
397 {
398 "MacBookAir1,1", "Apple SMC MacBook Air",
399 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
400 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS
401 },
402
403 {
404 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)",
405 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
406 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS
407 },
408
409 {
410 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)",
411 ASMC_SMS_FUNCS_DISABLED,
412 ASMC_FAN_FUNCS2,
413 ASMC_LIGHT_FUNCS,
414 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS
415 },
416
417 {
418 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)",
419 ASMC_SMS_FUNCS_DISABLED,
420 ASMC_FAN_FUNCS2,
421 ASMC_LIGHT_FUNCS,
422 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS
423 },
424
425 {
426 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)",
427 ASMC_SMS_FUNCS_DISABLED,
428 ASMC_FAN_FUNCS2,
429 ASMC_LIGHT_FUNCS,
430 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS
431 },
432
433 {
434 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)",
435 ASMC_SMS_FUNCS_DISABLED,
436 ASMC_FAN_FUNCS2,
437 ASMC_LIGHT_FUNCS,
438 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS
439 },
440 {
441 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)",
442 ASMC_SMS_FUNCS_DISABLED,
443 ASMC_FAN_FUNCS2,
444 ASMC_LIGHT_FUNCS_10BYTE,
445 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS
446 },
447 {
448 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)",
449 ASMC_SMS_FUNCS_DISABLED,
450 ASMC_FAN_FUNCS2,
451 ASMC_LIGHT_FUNCS_10BYTE,
452 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS
453 },
454 {
455 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)",
456 ASMC_SMS_FUNCS_DISABLED,
457 ASMC_FAN_FUNCS2,
458 ASMC_LIGHT_FUNCS,
459 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS
460 },
461 {
462 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)",
463 ASMC_SMS_FUNCS_DISABLED,
464 ASMC_FAN_FUNCS2,
465 ASMC_LIGHT_FUNCS,
466 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS
467 },
468 { NULL, NULL }
469 };
470
471 #undef ASMC_SMS_FUNCS
472 #undef ASMC_SMS_FUNCS_DISABLED
473 #undef ASMC_FAN_FUNCS
474 #undef ASMC_FAN_FUNCS2
475 #undef ASMC_LIGHT_FUNCS
476
477 /*
478 * Driver methods.
479 */
480 static device_method_t asmc_methods[] = {
481 DEVMETHOD(device_probe, asmc_probe),
482 DEVMETHOD(device_attach, asmc_attach),
483 DEVMETHOD(device_detach, asmc_detach),
484 DEVMETHOD(device_resume, asmc_resume),
485 { 0, 0 }
486 };
487
488 static driver_t asmc_driver = {
489 "asmc",
490 asmc_methods,
491 sizeof(struct asmc_softc)
492 };
493
494 /*
495 * Debugging
496 */
497 #define _COMPONENT ACPI_OEM
498 ACPI_MODULE_NAME("ASMC")
499 #ifdef DEBUG
500 #define ASMC_DPRINTF(str) device_printf(dev, str)
501 #else
502 #define ASMC_DPRINTF(str)
503 #endif
504
505 /* NB: can't be const */
506 static char *asmc_ids[] = { "APP0001", NULL };
507
508 static unsigned int light_control = 0;
509
510 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL);
511 MODULE_DEPEND(asmc, acpi, 1, 1, 1);
512
513 static const struct asmc_model *
asmc_match(device_t dev)514 asmc_match(device_t dev)
515 {
516 int i;
517 char *model;
518
519 model = kern_getenv("smbios.system.product");
520 if (model == NULL)
521 return (NULL);
522
523 for (i = 0; asmc_models[i].smc_model; i++) {
524 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) {
525 freeenv(model);
526 return (&asmc_models[i]);
527 }
528 }
529 freeenv(model);
530
531 return (NULL);
532 }
533
534 static int
asmc_probe(device_t dev)535 asmc_probe(device_t dev)
536 {
537 const struct asmc_model *model;
538 int rv;
539
540 if (resource_disabled("asmc", 0))
541 return (ENXIO);
542 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL);
543 if (rv > 0)
544 return (rv);
545
546 model = asmc_match(dev);
547 if (!model) {
548 device_printf(dev, "model not recognized\n");
549 return (ENXIO);
550 }
551 device_set_desc(dev, model->smc_desc);
552
553 return (rv);
554 }
555
556 static int
asmc_attach(device_t dev)557 asmc_attach(device_t dev)
558 {
559 int i, j;
560 int ret;
561 char name[2];
562 struct asmc_softc *sc = device_get_softc(dev);
563 struct sysctl_ctx_list *sysctlctx;
564 struct sysctl_oid *sysctlnode;
565 const struct asmc_model *model;
566
567 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
568 &sc->sc_rid_port, RF_ACTIVE);
569 if (sc->sc_ioport == NULL) {
570 device_printf(dev, "unable to allocate IO port\n");
571 return (ENOMEM);
572 }
573
574 sysctlctx = device_get_sysctl_ctx(dev);
575 sysctlnode = device_get_sysctl_tree(dev);
576
577 model = asmc_match(dev);
578
579 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN);
580
581 sc->sc_model = model;
582 asmc_init(dev);
583
584 /*
585 * dev.asmc.n.fan.* tree.
586 */
587 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx,
588 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan",
589 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree");
590
591 for (i = 1; i <= sc->sc_nfan; i++) {
592 j = i - 1;
593 name[0] = '0' + j;
594 name[1] = 0;
595 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx,
596 SYSCTL_CHILDREN(sc->sc_fan_tree[0]),
597 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
598 "Fan Subtree");
599
600 SYSCTL_ADD_PROC(sysctlctx,
601 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
602 OID_AUTO, "id",
603 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
604 dev, j, model->smc_fan_id, "I",
605 "Fan ID");
606
607 SYSCTL_ADD_PROC(sysctlctx,
608 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
609 OID_AUTO, "speed",
610 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
611 dev, j, model->smc_fan_speed, "I",
612 "Fan speed in RPM");
613
614 SYSCTL_ADD_PROC(sysctlctx,
615 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
616 OID_AUTO, "safespeed",
617 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
618 dev, j, model->smc_fan_safespeed, "I",
619 "Fan safe speed in RPM");
620
621 SYSCTL_ADD_PROC(sysctlctx,
622 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
623 OID_AUTO, "minspeed",
624 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
625 dev, j, model->smc_fan_minspeed, "I",
626 "Fan minimum speed in RPM");
627
628 SYSCTL_ADD_PROC(sysctlctx,
629 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
630 OID_AUTO, "maxspeed",
631 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
632 dev, j, model->smc_fan_maxspeed, "I",
633 "Fan maximum speed in RPM");
634
635 SYSCTL_ADD_PROC(sysctlctx,
636 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
637 OID_AUTO, "targetspeed",
638 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
639 dev, j, model->smc_fan_targetspeed, "I",
640 "Fan target speed in RPM");
641 }
642
643 /*
644 * dev.asmc.n.temp tree.
645 */
646 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx,
647 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp",
648 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors");
649
650 for (i = 0; model->smc_temps[i]; i++) {
651 SYSCTL_ADD_PROC(sysctlctx,
652 SYSCTL_CHILDREN(sc->sc_temp_tree),
653 OID_AUTO, model->smc_tempnames[i],
654 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
655 dev, i, asmc_temp_sysctl, "I",
656 model->smc_tempdescs[i]);
657 }
658
659 /*
660 * dev.asmc.n.light
661 */
662 if (model->smc_light_left) {
663 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx,
664 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light",
665 CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
666 "Keyboard backlight sensors");
667
668 SYSCTL_ADD_PROC(sysctlctx,
669 SYSCTL_CHILDREN(sc->sc_light_tree),
670 OID_AUTO, "left",
671 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
672 dev, 0, model->smc_light_left, "I",
673 "Keyboard backlight left sensor");
674
675 SYSCTL_ADD_PROC(sysctlctx,
676 SYSCTL_CHILDREN(sc->sc_light_tree),
677 OID_AUTO, "right",
678 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
679 dev, 0, model->smc_light_right, "I",
680 "Keyboard backlight right sensor");
681
682 SYSCTL_ADD_PROC(sysctlctx,
683 SYSCTL_CHILDREN(sc->sc_light_tree),
684 OID_AUTO, "control",
685 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY |
686 CTLFLAG_NEEDGIANT, dev, 0,
687 model->smc_light_control, "I",
688 "Keyboard backlight brightness control");
689 }
690
691 if (model->smc_sms_x == NULL)
692 goto nosms;
693
694 /*
695 * dev.asmc.n.sms tree.
696 */
697 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx,
698 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms",
699 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor");
700
701 SYSCTL_ADD_PROC(sysctlctx,
702 SYSCTL_CHILDREN(sc->sc_sms_tree),
703 OID_AUTO, "x",
704 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
705 dev, 0, model->smc_sms_x, "I",
706 "Sudden Motion Sensor X value");
707
708 SYSCTL_ADD_PROC(sysctlctx,
709 SYSCTL_CHILDREN(sc->sc_sms_tree),
710 OID_AUTO, "y",
711 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
712 dev, 0, model->smc_sms_y, "I",
713 "Sudden Motion Sensor Y value");
714
715 SYSCTL_ADD_PROC(sysctlctx,
716 SYSCTL_CHILDREN(sc->sc_sms_tree),
717 OID_AUTO, "z",
718 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
719 dev, 0, model->smc_sms_z, "I",
720 "Sudden Motion Sensor Z value");
721
722 /*
723 * Need a taskqueue to send devctl_notify() events
724 * when the SMS interrupt us.
725 *
726 * PI_REALTIME is used due to the sensitivity of the
727 * interrupt. An interrupt from the SMS means that the
728 * disk heads should be turned off as quickly as possible.
729 *
730 * We only need to do this for the non INTR_FILTER case.
731 */
732 sc->sc_sms_tq = NULL;
733 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc);
734 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK,
735 taskqueue_thread_enqueue, &sc->sc_sms_tq);
736 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq",
737 device_get_nameunit(dev));
738 /*
739 * Allocate an IRQ for the SMS.
740 */
741 sc->sc_rid_irq = 0;
742 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
743 &sc->sc_rid_irq, RF_ACTIVE);
744 if (sc->sc_irq == NULL) {
745 device_printf(dev, "unable to allocate IRQ resource\n");
746 ret = ENXIO;
747 goto err2;
748 }
749
750 ret = bus_setup_intr(dev, sc->sc_irq,
751 INTR_TYPE_MISC | INTR_MPSAFE,
752 asmc_sms_intrfast, NULL,
753 dev, &sc->sc_cookie);
754
755 if (ret) {
756 device_printf(dev, "unable to setup SMS IRQ\n");
757 goto err1;
758 }
759 nosms:
760 return (0);
761 err1:
762 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq);
763 err2:
764 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port,
765 sc->sc_ioport);
766 mtx_destroy(&sc->sc_mtx);
767 if (sc->sc_sms_tq)
768 taskqueue_free(sc->sc_sms_tq);
769
770 return (ret);
771 }
772
773 static int
asmc_detach(device_t dev)774 asmc_detach(device_t dev)
775 {
776 struct asmc_softc *sc = device_get_softc(dev);
777
778 if (sc->sc_sms_tq) {
779 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task);
780 taskqueue_free(sc->sc_sms_tq);
781 }
782 if (sc->sc_cookie)
783 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie);
784 if (sc->sc_irq)
785 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq,
786 sc->sc_irq);
787 if (sc->sc_ioport)
788 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port,
789 sc->sc_ioport);
790 mtx_destroy(&sc->sc_mtx);
791
792 return (0);
793 }
794
795 static int
asmc_resume(device_t dev)796 asmc_resume(device_t dev)
797 {
798 uint8_t buf[2];
799 buf[0] = light_control;
800 buf[1] = 0x00;
801 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf);
802 return (0);
803 }
804
805 #ifdef DEBUG
asmc_dumpall(device_t dev)806 void asmc_dumpall(device_t dev)
807 {
808 int i;
809
810 /* XXX magic number */
811 for (i=0; i < 0x100; i++)
812 asmc_key_dump(dev, i);
813 }
814 #endif
815
816 static int
asmc_init(device_t dev)817 asmc_init(device_t dev)
818 {
819 struct asmc_softc *sc = device_get_softc(dev);
820 int i, error = 1;
821 uint8_t buf[4];
822
823 if (sc->sc_model->smc_sms_x == NULL)
824 goto nosms;
825
826 /*
827 * We are ready to receive interrupts from the SMS.
828 */
829 buf[0] = 0x01;
830 ASMC_DPRINTF(("intok key\n"));
831 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1);
832 DELAY(50);
833
834 /*
835 * Initiate the polling intervals.
836 */
837 buf[0] = 20; /* msecs */
838 ASMC_DPRINTF(("low int key\n"));
839 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1);
840 DELAY(200);
841
842 buf[0] = 20; /* msecs */
843 ASMC_DPRINTF(("high int key\n"));
844 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1);
845 DELAY(200);
846
847 buf[0] = 0x00;
848 buf[1] = 0x60;
849 ASMC_DPRINTF(("sms low key\n"));
850 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2);
851 DELAY(200);
852
853 buf[0] = 0x01;
854 buf[1] = 0xc0;
855 ASMC_DPRINTF(("sms high key\n"));
856 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2);
857 DELAY(200);
858
859 /*
860 * I'm not sure what this key does, but it seems to be
861 * required.
862 */
863 buf[0] = 0x01;
864 ASMC_DPRINTF(("sms flag key\n"));
865 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1);
866 DELAY(100);
867
868 sc->sc_sms_intr_works = 0;
869
870 /*
871 * Retry SMS initialization 1000 times
872 * (takes approx. 2 seconds in worst case)
873 */
874 for (i = 0; i < 1000; i++) {
875 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 &&
876 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) {
877 error = 0;
878 sc->sc_sms_intr_works = 1;
879 goto out;
880 }
881 buf[0] = ASMC_SMS_INIT1;
882 buf[1] = ASMC_SMS_INIT2;
883 ASMC_DPRINTF(("sms key\n"));
884 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2);
885 DELAY(50);
886 }
887 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n");
888
889 out:
890 asmc_sms_calibrate(dev);
891 nosms:
892 sc->sc_nfan = asmc_fan_count(dev);
893 if (sc->sc_nfan > ASMC_MAXFANS) {
894 device_printf(dev, "more than %d fans were detected. Please "
895 "report this.\n", ASMC_MAXFANS);
896 sc->sc_nfan = ASMC_MAXFANS;
897 }
898
899 if (bootverbose) {
900 /*
901 * The number of keys is a 32 bit buffer
902 */
903 asmc_key_read(dev, ASMC_NKEYS, buf, 4);
904 device_printf(dev, "number of keys: %d\n", ntohl(*(uint32_t*)buf));
905 }
906
907 #ifdef DEBUG
908 asmc_dumpall(dev);
909 #endif
910
911 return (error);
912 }
913
914 /*
915 * We need to make sure that the SMC acks the byte sent.
916 * Just wait up to (amount * 10) ms.
917 */
918 static int
asmc_wait_ack(device_t dev,uint8_t val,int amount)919 asmc_wait_ack(device_t dev, uint8_t val, int amount)
920 {
921 struct asmc_softc *sc = device_get_softc(dev);
922 u_int i;
923
924 val = val & ASMC_STATUS_MASK;
925
926 for (i = 0; i < amount; i++) {
927 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val)
928 return (0);
929 DELAY(10);
930 }
931
932 return (1);
933 }
934
935 /*
936 * We need to make sure that the SMC acks the byte sent.
937 * Just wait up to 100 ms.
938 */
939 static int
asmc_wait(device_t dev,uint8_t val)940 asmc_wait(device_t dev, uint8_t val)
941 {
942 #ifdef DEBUG
943 struct asmc_softc *sc;
944 #endif
945
946 if (asmc_wait_ack(dev, val, 1000) == 0)
947 return (0);
948
949 #ifdef DEBUG
950 sc = device_get_softc(dev);
951 #endif
952 val = val & ASMC_STATUS_MASK;
953
954 #ifdef DEBUG
955 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val,
956 ASMC_CMDPORT_READ(sc));
957 #endif
958 return (1);
959 }
960
961 /*
962 * Send the given command, retrying up to 10 times if
963 * the acknowledgement fails.
964 */
965 static int
asmc_command(device_t dev,uint8_t command)966 asmc_command(device_t dev, uint8_t command) {
967 int i;
968 struct asmc_softc *sc = device_get_softc(dev);
969
970 for (i=0; i < 10; i++) {
971 ASMC_CMDPORT_WRITE(sc, command);
972 if (asmc_wait_ack(dev, 0x0c, 100) == 0) {
973 return (0);
974 }
975 }
976
977 #ifdef DEBUG
978 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command,
979 ASMC_CMDPORT_READ(sc));
980 #endif
981 return (1);
982 }
983
984 static int
asmc_key_read(device_t dev,const char * key,uint8_t * buf,uint8_t len)985 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len)
986 {
987 int i, error = 1, try = 0;
988 struct asmc_softc *sc = device_get_softc(dev);
989
990 mtx_lock_spin(&sc->sc_mtx);
991
992 begin:
993 if (asmc_command(dev, ASMC_CMDREAD))
994 goto out;
995
996 for (i = 0; i < 4; i++) {
997 ASMC_DATAPORT_WRITE(sc, key[i]);
998 if (asmc_wait(dev, 0x04))
999 goto out;
1000 }
1001
1002 ASMC_DATAPORT_WRITE(sc, len);
1003
1004 for (i = 0; i < len; i++) {
1005 if (asmc_wait(dev, 0x05))
1006 goto out;
1007 buf[i] = ASMC_DATAPORT_READ(sc);
1008 }
1009
1010 error = 0;
1011 out:
1012 if (error) {
1013 if (++try < 10) goto begin;
1014 device_printf(dev,"%s for key %s failed %d times, giving up\n",
1015 __func__, key, try);
1016 }
1017
1018 mtx_unlock_spin(&sc->sc_mtx);
1019
1020 return (error);
1021 }
1022
1023 #ifdef DEBUG
1024 static int
asmc_key_dump(device_t dev,int number)1025 asmc_key_dump(device_t dev, int number)
1026 {
1027 struct asmc_softc *sc = device_get_softc(dev);
1028 char key[5] = { 0 };
1029 char type[7] = { 0 };
1030 uint8_t index[4];
1031 uint8_t v[32];
1032 uint8_t maxlen;
1033 int i, error = 1, try = 0;
1034
1035 mtx_lock_spin(&sc->sc_mtx);
1036
1037 index[0] = (number >> 24) & 0xff;
1038 index[1] = (number >> 16) & 0xff;
1039 index[2] = (number >> 8) & 0xff;
1040 index[3] = (number) & 0xff;
1041
1042 begin:
1043 if (asmc_command(dev, 0x12))
1044 goto out;
1045
1046 for (i = 0; i < 4; i++) {
1047 ASMC_DATAPORT_WRITE(sc, index[i]);
1048 if (asmc_wait(dev, 0x04))
1049 goto out;
1050 }
1051
1052 ASMC_DATAPORT_WRITE(sc, 4);
1053
1054 for (i = 0; i < 4; i++) {
1055 if (asmc_wait(dev, 0x05))
1056 goto out;
1057 key[i] = ASMC_DATAPORT_READ(sc);
1058 }
1059
1060 /* get type */
1061 if (asmc_command(dev, 0x13))
1062 goto out;
1063
1064 for (i = 0; i < 4; i++) {
1065 ASMC_DATAPORT_WRITE(sc, key[i]);
1066 if (asmc_wait(dev, 0x04))
1067 goto out;
1068 }
1069
1070 ASMC_DATAPORT_WRITE(sc, 6);
1071
1072 for (i = 0; i < 6; i++) {
1073 if (asmc_wait(dev, 0x05))
1074 goto out;
1075 type[i] = ASMC_DATAPORT_READ(sc);
1076 }
1077
1078 error = 0;
1079 out:
1080 if (error) {
1081 if (++try < 10) goto begin;
1082 device_printf(dev,"%s for key %s failed %d times, giving up\n",
1083 __func__, key, try);
1084 mtx_unlock_spin(&sc->sc_mtx);
1085 }
1086 else {
1087 char buf[1024];
1088 char buf2[8];
1089 mtx_unlock_spin(&sc->sc_mtx);
1090 maxlen = type[0];
1091 type[0] = ' ';
1092 type[5] = 0;
1093 if (maxlen > sizeof(v)) {
1094 device_printf(dev,
1095 "WARNING: cropping maxlen from %d to %zu\n",
1096 maxlen, sizeof(v));
1097 maxlen = sizeof(v);
1098 }
1099 for (i = 0; i < sizeof(v); i++) {
1100 v[i] = 0;
1101 }
1102 asmc_key_read(dev, key, v, maxlen);
1103 snprintf(buf, sizeof(buf), "key %d is: %s, type %s "
1104 "(len %d), data", number, key, type, maxlen);
1105 for (i = 0; i < maxlen; i++) {
1106 snprintf(buf2, sizeof(buf2), " %02x", v[i]);
1107 strlcat(buf, buf2, sizeof(buf));
1108 }
1109 strlcat(buf, " \n", sizeof(buf));
1110 device_printf(dev, "%s", buf);
1111 }
1112
1113 return (error);
1114 }
1115 #endif
1116
1117 static int
asmc_key_write(device_t dev,const char * key,uint8_t * buf,uint8_t len)1118 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len)
1119 {
1120 int i, error = -1, try = 0;
1121 struct asmc_softc *sc = device_get_softc(dev);
1122
1123 mtx_lock_spin(&sc->sc_mtx);
1124
1125 begin:
1126 ASMC_DPRINTF(("cmd port: cmd write\n"));
1127 if (asmc_command(dev, ASMC_CMDWRITE))
1128 goto out;
1129
1130 ASMC_DPRINTF(("data port: key\n"));
1131 for (i = 0; i < 4; i++) {
1132 ASMC_DATAPORT_WRITE(sc, key[i]);
1133 if (asmc_wait(dev, 0x04))
1134 goto out;
1135 }
1136 ASMC_DPRINTF(("data port: length\n"));
1137 ASMC_DATAPORT_WRITE(sc, len);
1138
1139 ASMC_DPRINTF(("data port: buffer\n"));
1140 for (i = 0; i < len; i++) {
1141 if (asmc_wait(dev, 0x04))
1142 goto out;
1143 ASMC_DATAPORT_WRITE(sc, buf[i]);
1144 }
1145
1146 error = 0;
1147 out:
1148 if (error) {
1149 if (++try < 10) goto begin;
1150 device_printf(dev,"%s for key %s failed %d times, giving up\n",
1151 __func__, key, try);
1152 }
1153
1154 mtx_unlock_spin(&sc->sc_mtx);
1155
1156 return (error);
1157
1158 }
1159
1160 /*
1161 * Fan control functions.
1162 */
1163 static int
asmc_fan_count(device_t dev)1164 asmc_fan_count(device_t dev)
1165 {
1166 uint8_t buf[1];
1167
1168 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0)
1169 return (-1);
1170
1171 return (buf[0]);
1172 }
1173
1174 static int
asmc_fan_getvalue(device_t dev,const char * key,int fan)1175 asmc_fan_getvalue(device_t dev, const char *key, int fan)
1176 {
1177 int speed;
1178 uint8_t buf[2];
1179 char fankey[5];
1180
1181 snprintf(fankey, sizeof(fankey), key, fan);
1182 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0)
1183 return (-1);
1184 speed = (buf[0] << 6) | (buf[1] >> 2);
1185
1186 return (speed);
1187 }
1188
1189 static char*
asmc_fan_getstring(device_t dev,const char * key,int fan,uint8_t * buf,uint8_t buflen)1190 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, uint8_t buflen)
1191 {
1192 char fankey[5];
1193 char* desc;
1194
1195 snprintf(fankey, sizeof(fankey), key, fan);
1196 if (asmc_key_read(dev, fankey, buf, buflen) != 0)
1197 return (NULL);
1198 desc = buf+4;
1199
1200 return (desc);
1201 }
1202
1203 static int
asmc_fan_setvalue(device_t dev,const char * key,int fan,int speed)1204 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed)
1205 {
1206 uint8_t buf[2];
1207 char fankey[5];
1208
1209 speed *= 4;
1210
1211 buf[0] = speed>>8;
1212 buf[1] = speed;
1213
1214 snprintf(fankey, sizeof(fankey), key, fan);
1215 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0)
1216 return (-1);
1217
1218 return (0);
1219 }
1220
1221 static int
asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS)1222 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS)
1223 {
1224 device_t dev = (device_t) arg1;
1225 int fan = arg2;
1226 int error;
1227 int32_t v;
1228
1229 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan);
1230 error = sysctl_handle_int(oidp, &v, 0, req);
1231
1232 return (error);
1233 }
1234
1235 static int
asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS)1236 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS)
1237 {
1238 uint8_t buf[16];
1239 device_t dev = (device_t) arg1;
1240 int fan = arg2;
1241 int error = true;
1242 char* desc;
1243
1244 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf));
1245
1246 if (desc != NULL)
1247 error = sysctl_handle_string(oidp, desc, 0, req);
1248
1249 return (error);
1250 }
1251
1252 static int
asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS)1253 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS)
1254 {
1255 device_t dev = (device_t) arg1;
1256 int fan = arg2;
1257 int error;
1258 int32_t v;
1259
1260 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan);
1261 error = sysctl_handle_int(oidp, &v, 0, req);
1262
1263 return (error);
1264 }
1265
1266 static int
asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS)1267 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS)
1268 {
1269 device_t dev = (device_t) arg1;
1270 int fan = arg2;
1271 int error;
1272 int32_t v;
1273
1274 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan);
1275 error = sysctl_handle_int(oidp, &v, 0, req);
1276
1277 if (error == 0 && req->newptr != NULL) {
1278 unsigned int newspeed = v;
1279 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed);
1280 }
1281
1282 return (error);
1283 }
1284
1285 static int
asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS)1286 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS)
1287 {
1288 device_t dev = (device_t) arg1;
1289 int fan = arg2;
1290 int error;
1291 int32_t v;
1292
1293 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan);
1294 error = sysctl_handle_int(oidp, &v, 0, req);
1295
1296 if (error == 0 && req->newptr != NULL) {
1297 unsigned int newspeed = v;
1298 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed);
1299 }
1300
1301 return (error);
1302 }
1303
1304 static int
asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS)1305 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS)
1306 {
1307 device_t dev = (device_t) arg1;
1308 int fan = arg2;
1309 int error;
1310 int32_t v;
1311
1312 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan);
1313 error = sysctl_handle_int(oidp, &v, 0, req);
1314
1315 if (error == 0 && req->newptr != NULL) {
1316 unsigned int newspeed = v;
1317 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed);
1318 }
1319
1320 return (error);
1321 }
1322
1323 /*
1324 * Temperature functions.
1325 */
1326 static int
asmc_temp_getvalue(device_t dev,const char * key)1327 asmc_temp_getvalue(device_t dev, const char *key)
1328 {
1329 uint8_t buf[2];
1330
1331 /*
1332 * Check for invalid temperatures.
1333 */
1334 if (asmc_key_read(dev, key, buf, sizeof buf) != 0)
1335 return (-1);
1336
1337 return (buf[0]);
1338 }
1339
1340 static int
asmc_temp_sysctl(SYSCTL_HANDLER_ARGS)1341 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS)
1342 {
1343 device_t dev = (device_t) arg1;
1344 struct asmc_softc *sc = device_get_softc(dev);
1345 int error, val;
1346
1347 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]);
1348 error = sysctl_handle_int(oidp, &val, 0, req);
1349
1350 return (error);
1351 }
1352
1353 /*
1354 * Sudden Motion Sensor functions.
1355 */
1356 static int
asmc_sms_read(device_t dev,const char * key,int16_t * val)1357 asmc_sms_read(device_t dev, const char *key, int16_t *val)
1358 {
1359 uint8_t buf[2];
1360 int error;
1361
1362 /* no need to do locking here as asmc_key_read() already does it */
1363 switch (key[3]) {
1364 case 'X':
1365 case 'Y':
1366 case 'Z':
1367 error = asmc_key_read(dev, key, buf, sizeof buf);
1368 break;
1369 default:
1370 device_printf(dev, "%s called with invalid argument %s\n",
1371 __func__, key);
1372 error = 1;
1373 goto out;
1374 }
1375 *val = ((int16_t)buf[0] << 8) | buf[1];
1376 out:
1377 return (error);
1378 }
1379
1380 static void
asmc_sms_calibrate(device_t dev)1381 asmc_sms_calibrate(device_t dev)
1382 {
1383 struct asmc_softc *sc = device_get_softc(dev);
1384
1385 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x);
1386 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y);
1387 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z);
1388 }
1389
1390 static int
asmc_sms_intrfast(void * arg)1391 asmc_sms_intrfast(void *arg)
1392 {
1393 uint8_t type;
1394 device_t dev = (device_t) arg;
1395 struct asmc_softc *sc = device_get_softc(dev);
1396 if (!sc->sc_sms_intr_works)
1397 return (FILTER_HANDLED);
1398
1399 mtx_lock_spin(&sc->sc_mtx);
1400 type = ASMC_INTPORT_READ(sc);
1401 mtx_unlock_spin(&sc->sc_mtx);
1402
1403 sc->sc_sms_intrtype = type;
1404 asmc_sms_printintr(dev, type);
1405
1406 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task);
1407 return (FILTER_HANDLED);
1408 }
1409
1410 static void
asmc_sms_printintr(device_t dev,uint8_t type)1411 asmc_sms_printintr(device_t dev, uint8_t type)
1412 {
1413 struct asmc_softc *sc = device_get_softc(dev);
1414
1415 switch (type) {
1416 case ASMC_SMS_INTFF:
1417 device_printf(dev, "WARNING: possible free fall!\n");
1418 break;
1419 case ASMC_SMS_INTHA:
1420 device_printf(dev, "WARNING: high acceleration detected!\n");
1421 break;
1422 case ASMC_SMS_INTSH:
1423 device_printf(dev, "WARNING: possible shock!\n");
1424 break;
1425 case ASMC_ALSL_INT2A:
1426 /*
1427 * This suppresses console and log messages for the ambient
1428 * light sensor for models known to generate this interrupt.
1429 */
1430 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 ||
1431 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0)
1432 break;
1433 /* FALLTHROUGH */
1434 default:
1435 device_printf(dev, "unknown interrupt: 0x%x\n", type);
1436 }
1437 }
1438
1439 static void
asmc_sms_task(void * arg,int pending)1440 asmc_sms_task(void *arg, int pending)
1441 {
1442 struct asmc_softc *sc = (struct asmc_softc *)arg;
1443 char notify[16];
1444 int type;
1445
1446 switch (sc->sc_sms_intrtype) {
1447 case ASMC_SMS_INTFF:
1448 type = 2;
1449 break;
1450 case ASMC_SMS_INTHA:
1451 type = 1;
1452 break;
1453 case ASMC_SMS_INTSH:
1454 type = 0;
1455 break;
1456 default:
1457 type = 255;
1458 }
1459
1460 snprintf(notify, sizeof(notify), " notify=0x%x", type);
1461 devctl_notify("ACPI", "asmc", "SMS", notify);
1462 }
1463
1464 static int
asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS)1465 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS)
1466 {
1467 device_t dev = (device_t) arg1;
1468 int error;
1469 int16_t val;
1470 int32_t v;
1471
1472 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val);
1473 v = (int32_t) val;
1474 error = sysctl_handle_int(oidp, &v, 0, req);
1475
1476 return (error);
1477 }
1478
1479 static int
asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS)1480 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS)
1481 {
1482 device_t dev = (device_t) arg1;
1483 int error;
1484 int16_t val;
1485 int32_t v;
1486
1487 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val);
1488 v = (int32_t) val;
1489 error = sysctl_handle_int(oidp, &v, 0, req);
1490
1491 return (error);
1492 }
1493
1494 static int
asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS)1495 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS)
1496 {
1497 device_t dev = (device_t) arg1;
1498 int error;
1499 int16_t val;
1500 int32_t v;
1501
1502 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val);
1503 v = (int32_t) val;
1504 error = sysctl_handle_int(oidp, &v, 0, req);
1505
1506 return (error);
1507 }
1508
1509 static int
asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS)1510 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS)
1511 {
1512 device_t dev = (device_t) arg1;
1513 uint8_t buf[6];
1514 int error;
1515 int32_t v;
1516
1517 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf);
1518 v = buf[2];
1519 error = sysctl_handle_int(oidp, &v, 0, req);
1520
1521 return (error);
1522 }
1523
1524 static int
asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS)1525 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS)
1526 {
1527 device_t dev = (device_t) arg1;
1528 uint8_t buf[6];
1529 int error;
1530 int32_t v;
1531
1532 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf);
1533 v = buf[2];
1534 error = sysctl_handle_int(oidp, &v, 0, req);
1535
1536 return (error);
1537 }
1538
1539 static int
asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS)1540 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS)
1541 {
1542 device_t dev = (device_t) arg1;
1543 uint8_t buf[2];
1544 int error;
1545 int v;
1546
1547 v = light_control;
1548 error = sysctl_handle_int(oidp, &v, 0, req);
1549
1550 if (error == 0 && req->newptr != NULL) {
1551 if (v < 0 || v > 255)
1552 return (EINVAL);
1553 light_control = v;
1554 buf[0] = light_control;
1555 buf[1] = 0x00;
1556 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf);
1557 }
1558 return (error);
1559 }
1560
1561 static int
asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS)1562 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS)
1563 {
1564 device_t dev = (device_t) arg1;
1565 uint8_t buf[10];
1566 int error;
1567 uint32_t v;
1568
1569 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf);
1570
1571 /*
1572 * This seems to be a 32 bit big endian value from buf[6] -> buf[9].
1573 *
1574 * Extract it out manually here, then shift/clamp it.
1575 */
1576 v = be32dec(&buf[6]);
1577
1578 /*
1579 * Shift out, clamp at 255; that way it looks like the
1580 * earlier SMC firmware version responses.
1581 */
1582 v = v >> 8;
1583 if (v > 255)
1584 v = 255;
1585
1586 error = sysctl_handle_int(oidp, &v, 0, req);
1587
1588 return (error);
1589 }
1590