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