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); 111 112 struct asmc_model { 113 const char *smc_model; /* smbios.system.product env var. */ 114 const char *smc_desc; /* driver description */ 115 116 /* Helper functions */ 117 int (*smc_sms_x)(SYSCTL_HANDLER_ARGS); 118 int (*smc_sms_y)(SYSCTL_HANDLER_ARGS); 119 int (*smc_sms_z)(SYSCTL_HANDLER_ARGS); 120 int (*smc_fan_id)(SYSCTL_HANDLER_ARGS); 121 int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS); 122 int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS); 123 int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS); 124 int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS); 125 int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS); 126 int (*smc_light_left)(SYSCTL_HANDLER_ARGS); 127 int (*smc_light_right)(SYSCTL_HANDLER_ARGS); 128 int (*smc_light_control)(SYSCTL_HANDLER_ARGS); 129 130 const char *smc_temps[ASMC_TEMP_MAX]; 131 const char *smc_tempnames[ASMC_TEMP_MAX]; 132 const char *smc_tempdescs[ASMC_TEMP_MAX]; 133 }; 134 135 static const struct asmc_model *asmc_match(device_t dev); 136 137 #define ASMC_SMS_FUNCS \ 138 .smc_sms_x = asmc_mb_sysctl_sms_x, \ 139 .smc_sms_y = asmc_mb_sysctl_sms_y, \ 140 .smc_sms_z = asmc_mb_sysctl_sms_z 141 142 #define ASMC_SMS_FUNCS_DISABLED \ 143 .smc_sms_x = NULL, \ 144 .smc_sms_y = NULL, \ 145 .smc_sms_z = NULL 146 147 #define ASMC_FAN_FUNCS \ 148 .smc_fan_id = asmc_mb_sysctl_fanid, \ 149 .smc_fan_speed = asmc_mb_sysctl_fanspeed, \ 150 .smc_fan_safespeed = asmc_mb_sysctl_fansafespeed, \ 151 .smc_fan_minspeed = asmc_mb_sysctl_fanminspeed, \ 152 .smc_fan_maxspeed = asmc_mb_sysctl_fanmaxspeed, \ 153 .smc_fan_targetspeed = asmc_mb_sysctl_fantargetspeed 154 155 #define ASMC_FAN_FUNCS2 \ 156 .smc_fan_id = asmc_mb_sysctl_fanid, \ 157 .smc_fan_speed = asmc_mb_sysctl_fanspeed, \ 158 .smc_fan_safespeed = NULL, \ 159 .smc_fan_minspeed = asmc_mb_sysctl_fanminspeed, \ 160 .smc_fan_maxspeed = asmc_mb_sysctl_fanmaxspeed, \ 161 .smc_fan_targetspeed = asmc_mb_sysctl_fantargetspeed 162 163 #define ASMC_LIGHT_FUNCS \ 164 .smc_light_left = asmc_mbp_sysctl_light_left, \ 165 .smc_light_right = asmc_mbp_sysctl_light_right, \ 166 .smc_light_control = asmc_mbp_sysctl_light_control 167 168 #define ASMC_LIGHT_FUNCS_10BYTE \ 169 .smc_light_left = asmc_mbp_sysctl_light_left_10byte, \ 170 .smc_light_right = NULL, \ 171 .smc_light_control = asmc_mbp_sysctl_light_control 172 173 #define ASMC_LIGHT_FUNCS_DISABLED \ 174 .smc_light_left = NULL, \ 175 .smc_light_right = NULL, \ 176 .smc_light_control = NULL 177 178 static const struct asmc_model asmc_models[] = { 179 { 180 "MacBook1,1", "Apple SMC MacBook Core Duo", 181 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 182 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 183 }, 184 185 { 186 "MacBook2,1", "Apple SMC MacBook Core 2 Duo", 187 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 188 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 189 }, 190 191 { 192 "MacBook3,1", "Apple SMC MacBook Core 2 Duo", 193 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 194 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS 195 }, 196 197 { 198 "MacBook7,1", "Apple SMC MacBook Core 2 Duo (mid 2010)", 199 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS_DISABLED, 200 ASMC_MB71_TEMPS, ASMC_MB71_TEMPNAMES, ASMC_MB71_TEMPDESCS 201 }, 202 203 { 204 "MacBookPro1,1", "Apple SMC MacBook Pro Core 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 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)", 211 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 212 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 213 }, 214 215 { 216 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)", 217 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 218 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 219 }, 220 221 { 222 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)", 223 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 224 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 225 }, 226 227 { 228 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)", 229 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 230 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 231 }, 232 233 { 234 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)", 235 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 236 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 237 }, 238 239 { 240 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)", 241 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 242 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS 243 }, 244 245 { 246 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)", 247 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 248 ASMC_MBP51_TEMPS, ASMC_MBP51_TEMPNAMES, ASMC_MBP51_TEMPDESCS 249 }, 250 251 { 252 "MacBookPro5,5", "Apple SMC MacBook Pro Core 2 Duo (Mid 2009)", 253 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 254 ASMC_MBP55_TEMPS, ASMC_MBP55_TEMPNAMES, ASMC_MBP55_TEMPDESCS 255 }, 256 257 { 258 "MacBookPro6,2", "Apple SMC MacBook Pro (Mid 2010, 15-inch)", 259 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 260 ASMC_MBP62_TEMPS, ASMC_MBP62_TEMPNAMES, ASMC_MBP62_TEMPDESCS 261 }, 262 263 { 264 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)", 265 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 266 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS 267 }, 268 269 { 270 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)", 271 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 272 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS 273 }, 274 275 { 276 "MacBookPro9,1", "Apple SMC MacBook Pro (mid 2012, 15-inch)", 277 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 278 ASMC_MBP91_TEMPS, ASMC_MBP91_TEMPNAMES, ASMC_MBP91_TEMPDESCS 279 }, 280 281 { 282 "MacBookPro9,2", "Apple SMC MacBook Pro (mid 2012, 13-inch)", 283 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 284 ASMC_MBP92_TEMPS, ASMC_MBP92_TEMPNAMES, ASMC_MBP92_TEMPDESCS 285 }, 286 287 { 288 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 289 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 290 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS 291 }, 292 293 { 294 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 295 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 296 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS 297 }, 298 299 { 300 "MacBookPro11,4", "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch)", 301 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 302 ASMC_MBP114_TEMPS, ASMC_MBP114_TEMPNAMES, ASMC_MBP114_TEMPDESCS 303 }, 304 305 { 306 "MacBookPro11,5", 307 "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch, AMD GPU)", 308 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 309 ASMC_MBP115_TEMPS, ASMC_MBP115_TEMPNAMES, ASMC_MBP115_TEMPDESCS 310 }, 311 312 /* The Mac Mini has no SMS */ 313 { 314 "Macmini1,1", "Apple SMC Mac Mini", 315 ASMC_SMS_FUNCS_DISABLED, 316 ASMC_FAN_FUNCS, 317 ASMC_LIGHT_FUNCS_DISABLED, 318 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS 319 }, 320 321 /* The Mac Mini 2,1 has no SMS */ 322 { 323 "Macmini2,1", "Apple SMC Mac Mini 2,1", 324 ASMC_SMS_FUNCS_DISABLED, 325 ASMC_FAN_FUNCS, 326 ASMC_LIGHT_FUNCS_DISABLED, 327 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS 328 }, 329 330 /* The Mac Mini 3,1 has no SMS */ 331 { 332 "Macmini3,1", "Apple SMC Mac Mini 3,1", 333 ASMC_SMS_FUNCS_DISABLED, 334 ASMC_FAN_FUNCS, 335 ASMC_LIGHT_FUNCS_DISABLED, 336 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS 337 }, 338 339 /* The Mac Mini 4,1 (Mid-2010) has no SMS */ 340 { 341 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)", 342 ASMC_SMS_FUNCS_DISABLED, 343 ASMC_FAN_FUNCS2, 344 ASMC_LIGHT_FUNCS_DISABLED, 345 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS 346 }, 347 348 /* The Mac Mini 5,1 has no SMS */ 349 /* - same sensors as Mac Mini 5,2 */ 350 { 351 "Macmini5,1", "Apple SMC Mac Mini 5,1", 352 ASMC_SMS_FUNCS_DISABLED, 353 ASMC_FAN_FUNCS2, 354 ASMC_LIGHT_FUNCS_DISABLED, 355 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 356 }, 357 358 /* The Mac Mini 5,2 has no SMS */ 359 { 360 "Macmini5,2", "Apple SMC Mac Mini 5,2", 361 ASMC_SMS_FUNCS_DISABLED, 362 ASMC_FAN_FUNCS2, 363 ASMC_LIGHT_FUNCS_DISABLED, 364 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 365 }, 366 367 /* The Mac Mini 5,3 has no SMS */ 368 /* - same sensors as Mac Mini 5,2 */ 369 { 370 "Macmini5,3", "Apple SMC Mac Mini 5,3", 371 ASMC_SMS_FUNCS_DISABLED, 372 ASMC_FAN_FUNCS2, 373 ASMC_LIGHT_FUNCS_DISABLED, 374 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 375 }, 376 377 /* The Mac Mini 6,1 has no SMS */ 378 { 379 "Macmini6,1", "Apple SMC Mac Mini 6,1", 380 ASMC_SMS_FUNCS_DISABLED, 381 ASMC_FAN_FUNCS2, 382 ASMC_LIGHT_FUNCS_DISABLED, 383 ASMC_MM61_TEMPS, ASMC_MM61_TEMPNAMES, ASMC_MM61_TEMPDESCS 384 }, 385 386 /* The Mac Mini 6,2 has no SMS */ 387 { 388 "Macmini6,2", "Apple SMC Mac Mini 6,2", 389 ASMC_SMS_FUNCS_DISABLED, 390 ASMC_FAN_FUNCS2, 391 ASMC_LIGHT_FUNCS_DISABLED, 392 ASMC_MM62_TEMPS, ASMC_MM62_TEMPNAMES, ASMC_MM62_TEMPDESCS 393 }, 394 395 /* The Mac Mini 7,1 has no SMS */ 396 { 397 "Macmini7,1", "Apple SMC Mac Mini 7,1", 398 ASMC_SMS_FUNCS_DISABLED, 399 ASMC_FAN_FUNCS2, 400 ASMC_LIGHT_FUNCS_DISABLED, 401 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS 402 }, 403 404 /* Idem for the Mac Pro "Quad Core" (original) */ 405 { 406 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)", 407 ASMC_SMS_FUNCS_DISABLED, 408 ASMC_FAN_FUNCS, 409 ASMC_LIGHT_FUNCS_DISABLED, 410 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS 411 }, 412 413 /* Idem for the Mac Pro (Early 2008) */ 414 { 415 "MacPro3,1", "Apple SMC Mac Pro (Early 2008)", 416 ASMC_SMS_FUNCS_DISABLED, 417 ASMC_FAN_FUNCS, 418 ASMC_LIGHT_FUNCS_DISABLED, 419 ASMC_MP31_TEMPS, ASMC_MP31_TEMPNAMES, ASMC_MP31_TEMPDESCS 420 }, 421 422 /* Idem for the Mac Pro (8-core) */ 423 { 424 "MacPro2", "Apple SMC Mac Pro (8-core)", 425 ASMC_SMS_FUNCS_DISABLED, 426 ASMC_FAN_FUNCS, 427 ASMC_LIGHT_FUNCS_DISABLED, 428 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 429 }, 430 431 /* Idem for the MacPro 2010*/ 432 { 433 "MacPro5,1", "Apple SMC MacPro (2010)", 434 ASMC_SMS_FUNCS_DISABLED, 435 ASMC_FAN_FUNCS, 436 ASMC_LIGHT_FUNCS_DISABLED, 437 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 438 }, 439 440 /* Idem for the Mac Pro 2013 (cylinder) */ 441 { 442 "MacPro6,1", "Apple SMC Mac Pro (2013)", 443 ASMC_SMS_FUNCS_DISABLED, 444 ASMC_FAN_FUNCS2, 445 ASMC_LIGHT_FUNCS_DISABLED, 446 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 447 }, 448 449 { 450 "MacBookAir1,1", "Apple SMC MacBook Air", 451 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 452 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 453 }, 454 455 { 456 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 457 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 458 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 459 }, 460 461 { 462 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 463 ASMC_SMS_FUNCS_DISABLED, 464 ASMC_FAN_FUNCS2, 465 ASMC_LIGHT_FUNCS, 466 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 467 }, 468 469 { 470 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 471 ASMC_SMS_FUNCS_DISABLED, 472 ASMC_FAN_FUNCS2, 473 ASMC_LIGHT_FUNCS, 474 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 475 }, 476 477 { 478 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 479 ASMC_SMS_FUNCS_DISABLED, 480 ASMC_FAN_FUNCS2, 481 ASMC_LIGHT_FUNCS, 482 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 483 }, 484 485 { 486 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 487 ASMC_SMS_FUNCS_DISABLED, 488 ASMC_FAN_FUNCS2, 489 ASMC_LIGHT_FUNCS, 490 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 491 }, 492 { 493 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 494 ASMC_SMS_FUNCS_DISABLED, 495 ASMC_FAN_FUNCS2, 496 ASMC_LIGHT_FUNCS_10BYTE, 497 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 498 }, 499 { 500 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)", 501 ASMC_SMS_FUNCS_DISABLED, 502 ASMC_FAN_FUNCS2, 503 ASMC_LIGHT_FUNCS_10BYTE, 504 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 505 }, 506 { 507 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 508 ASMC_SMS_FUNCS_DISABLED, 509 ASMC_FAN_FUNCS2, 510 ASMC_LIGHT_FUNCS, 511 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 512 }, 513 { 514 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)", 515 ASMC_SMS_FUNCS_DISABLED, 516 ASMC_FAN_FUNCS2, 517 ASMC_LIGHT_FUNCS, 518 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 519 }, 520 { NULL, NULL } 521 }; 522 523 #undef ASMC_SMS_FUNCS 524 #undef ASMC_SMS_FUNCS_DISABLED 525 #undef ASMC_FAN_FUNCS 526 #undef ASMC_FAN_FUNCS2 527 #undef ASMC_LIGHT_FUNCS 528 529 /* 530 * Driver methods. 531 */ 532 static device_method_t asmc_methods[] = { 533 DEVMETHOD(device_probe, asmc_probe), 534 DEVMETHOD(device_attach, asmc_attach), 535 DEVMETHOD(device_detach, asmc_detach), 536 DEVMETHOD(device_resume, asmc_resume), 537 { 0, 0 } 538 }; 539 540 static driver_t asmc_driver = { 541 "asmc", 542 asmc_methods, 543 sizeof(struct asmc_softc) 544 }; 545 546 /* 547 * Debugging 548 */ 549 #define _COMPONENT ACPI_OEM 550 ACPI_MODULE_NAME("ASMC") 551 #ifdef ASMC_DEBUG 552 #define ASMC_DPRINTF(str) device_printf(dev, str) 553 #else 554 #define ASMC_DPRINTF(str) 555 #endif 556 557 /* NB: can't be const */ 558 static char *asmc_ids[] = { "APP0001", NULL }; 559 560 static unsigned int light_control = 0; 561 562 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 563 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 564 565 static const struct asmc_model * 566 asmc_match(device_t dev) 567 { 568 int i; 569 char *model; 570 571 model = kern_getenv("smbios.system.product"); 572 if (model == NULL) 573 return (NULL); 574 575 for (i = 0; asmc_models[i].smc_model; i++) { 576 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 577 freeenv(model); 578 return (&asmc_models[i]); 579 } 580 } 581 freeenv(model); 582 583 return (NULL); 584 } 585 586 static int 587 asmc_probe(device_t dev) 588 { 589 const struct asmc_model *model; 590 int rv; 591 592 if (resource_disabled("asmc", 0)) 593 return (ENXIO); 594 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 595 if (rv > 0) 596 return (rv); 597 598 model = asmc_match(dev); 599 if (!model) { 600 device_printf(dev, "model not recognized\n"); 601 return (ENXIO); 602 } 603 device_set_desc(dev, model->smc_desc); 604 605 return (rv); 606 } 607 608 static int 609 asmc_attach(device_t dev) 610 { 611 int i, j; 612 int ret; 613 char name[2]; 614 struct asmc_softc *sc = device_get_softc(dev); 615 struct sysctl_ctx_list *sysctlctx; 616 struct sysctl_oid *sysctlnode; 617 const struct asmc_model *model; 618 619 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 620 &sc->sc_rid_port, RF_ACTIVE); 621 if (sc->sc_ioport == NULL) { 622 device_printf(dev, "unable to allocate IO port\n"); 623 return (ENOMEM); 624 } 625 626 sysctlctx = device_get_sysctl_ctx(dev); 627 sysctlnode = device_get_sysctl_tree(dev); 628 629 model = asmc_match(dev); 630 631 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 632 633 sc->sc_model = model; 634 asmc_init(dev); 635 636 /* 637 * dev.asmc.n.fan.* tree. 638 */ 639 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 640 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 641 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 642 643 for (i = 1; i <= sc->sc_nfan; i++) { 644 j = i - 1; 645 name[0] = '0' + j; 646 name[1] = 0; 647 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 648 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 649 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 650 "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, 656 dev, j, model->smc_fan_id, "I", 657 "Fan ID"); 658 659 SYSCTL_ADD_PROC(sysctlctx, 660 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 661 OID_AUTO, "speed", 662 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 663 dev, j, model->smc_fan_speed, "I", 664 "Fan speed in RPM"); 665 666 SYSCTL_ADD_PROC(sysctlctx, 667 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 668 OID_AUTO, "safespeed", 669 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 670 dev, j, model->smc_fan_safespeed, "I", 671 "Fan safe speed in RPM"); 672 673 SYSCTL_ADD_PROC(sysctlctx, 674 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 675 OID_AUTO, "minspeed", 676 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 677 dev, j, model->smc_fan_minspeed, "I", 678 "Fan minimum speed in RPM"); 679 680 SYSCTL_ADD_PROC(sysctlctx, 681 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 682 OID_AUTO, "maxspeed", 683 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 684 dev, j, model->smc_fan_maxspeed, "I", 685 "Fan maximum speed in RPM"); 686 687 SYSCTL_ADD_PROC(sysctlctx, 688 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 689 OID_AUTO, "targetspeed", 690 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 691 dev, j, model->smc_fan_targetspeed, "I", 692 "Fan target speed in RPM"); 693 694 SYSCTL_ADD_PROC(sysctlctx, 695 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 696 OID_AUTO, "manual", 697 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 698 dev, j, asmc_mb_sysctl_fanmanual, "I", 699 "Fan manual mode (0=auto, 1=manual)"); 700 } 701 702 /* 703 * dev.asmc.n.temp tree. 704 */ 705 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 706 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 707 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 708 709 for (i = 0; model->smc_temps[i]; i++) { 710 SYSCTL_ADD_PROC(sysctlctx, 711 SYSCTL_CHILDREN(sc->sc_temp_tree), 712 OID_AUTO, model->smc_tempnames[i], 713 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 714 dev, i, asmc_temp_sysctl, "I", 715 model->smc_tempdescs[i]); 716 } 717 718 /* 719 * dev.asmc.n.light 720 */ 721 if (model->smc_light_left) { 722 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 723 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 724 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 725 "Keyboard backlight sensors"); 726 727 SYSCTL_ADD_PROC(sysctlctx, 728 SYSCTL_CHILDREN(sc->sc_light_tree), 729 OID_AUTO, "left", 730 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 731 dev, 0, model->smc_light_left, "I", 732 "Keyboard backlight left sensor"); 733 734 SYSCTL_ADD_PROC(sysctlctx, 735 SYSCTL_CHILDREN(sc->sc_light_tree), 736 OID_AUTO, "right", 737 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 738 dev, 0, model->smc_light_right, "I", 739 "Keyboard backlight right sensor"); 740 741 SYSCTL_ADD_PROC(sysctlctx, 742 SYSCTL_CHILDREN(sc->sc_light_tree), 743 OID_AUTO, "control", 744 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 745 CTLFLAG_MPSAFE, dev, 0, 746 model->smc_light_control, "I", 747 "Keyboard backlight brightness control"); 748 } 749 750 if (model->smc_sms_x == NULL) 751 goto nosms; 752 753 /* 754 * dev.asmc.n.sms tree. 755 */ 756 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 757 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 758 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 759 760 SYSCTL_ADD_PROC(sysctlctx, 761 SYSCTL_CHILDREN(sc->sc_sms_tree), 762 OID_AUTO, "x", 763 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 764 dev, 0, model->smc_sms_x, "I", 765 "Sudden Motion Sensor X value"); 766 767 SYSCTL_ADD_PROC(sysctlctx, 768 SYSCTL_CHILDREN(sc->sc_sms_tree), 769 OID_AUTO, "y", 770 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 771 dev, 0, model->smc_sms_y, "I", 772 "Sudden Motion Sensor Y value"); 773 774 SYSCTL_ADD_PROC(sysctlctx, 775 SYSCTL_CHILDREN(sc->sc_sms_tree), 776 OID_AUTO, "z", 777 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 778 dev, 0, model->smc_sms_z, "I", 779 "Sudden Motion Sensor Z value"); 780 781 /* 782 * Need a taskqueue to send devctl_notify() events 783 * when the SMS interrupt us. 784 * 785 * PI_REALTIME is used due to the sensitivity of the 786 * interrupt. An interrupt from the SMS means that the 787 * disk heads should be turned off as quickly as possible. 788 * 789 * We only need to do this for the non INTR_FILTER case. 790 */ 791 sc->sc_sms_tq = NULL; 792 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 793 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 794 taskqueue_thread_enqueue, &sc->sc_sms_tq); 795 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 796 device_get_nameunit(dev)); 797 /* 798 * Allocate an IRQ for the SMS. 799 */ 800 sc->sc_rid_irq = 0; 801 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_rid_irq, 802 RF_ACTIVE); 803 if (sc->sc_irq == NULL) { 804 device_printf(dev, "unable to allocate IRQ resource\n"); 805 ret = ENXIO; 806 goto err2; 807 } 808 809 ret = bus_setup_intr(dev, sc->sc_irq, 810 INTR_TYPE_MISC | INTR_MPSAFE, 811 asmc_sms_intrfast, NULL, 812 dev, &sc->sc_cookie); 813 814 if (ret) { 815 device_printf(dev, "unable to setup SMS IRQ\n"); 816 goto err1; 817 } 818 nosms: 819 return (0); 820 err1: 821 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 822 err2: 823 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 824 sc->sc_ioport); 825 mtx_destroy(&sc->sc_mtx); 826 if (sc->sc_sms_tq) 827 taskqueue_free(sc->sc_sms_tq); 828 829 return (ret); 830 } 831 832 static int 833 asmc_detach(device_t dev) 834 { 835 struct asmc_softc *sc = device_get_softc(dev); 836 837 if (sc->sc_sms_tq) { 838 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 839 taskqueue_free(sc->sc_sms_tq); 840 } 841 if (sc->sc_cookie) 842 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 843 if (sc->sc_irq) 844 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 845 sc->sc_irq); 846 if (sc->sc_ioport) 847 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 848 sc->sc_ioport); 849 mtx_destroy(&sc->sc_mtx); 850 851 return (0); 852 } 853 854 static int 855 asmc_resume(device_t dev) 856 { 857 uint8_t buf[2]; 858 859 buf[0] = light_control; 860 buf[1] = 0x00; 861 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 862 863 return (0); 864 } 865 866 #ifdef ASMC_DEBUG 867 void 868 asmc_dumpall(device_t dev) 869 { 870 struct asmc_softc *sc = device_get_softc(dev); 871 int i; 872 873 if (sc->sc_nkeys == 0) { 874 device_printf(dev, "asmc_dumpall: key count not available\n"); 875 return; 876 } 877 878 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys); 879 for (i = 0; i < sc->sc_nkeys; i++) 880 asmc_key_dump(dev, i); 881 } 882 #endif 883 884 static int 885 asmc_init(device_t dev) 886 { 887 struct asmc_softc *sc = device_get_softc(dev); 888 int i, error = 1; 889 uint8_t buf[4]; 890 891 if (sc->sc_model->smc_sms_x == NULL) 892 goto nosms; 893 894 /* 895 * We are ready to receive interrupts from the SMS. 896 */ 897 buf[0] = 0x01; 898 ASMC_DPRINTF(("intok key\n")); 899 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 900 DELAY(50); 901 902 /* 903 * Initiate the polling intervals. 904 */ 905 buf[0] = 20; /* msecs */ 906 ASMC_DPRINTF(("low int key\n")); 907 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 908 DELAY(200); 909 910 buf[0] = 20; /* msecs */ 911 ASMC_DPRINTF(("high int key\n")); 912 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 913 DELAY(200); 914 915 buf[0] = 0x00; 916 buf[1] = 0x60; 917 ASMC_DPRINTF(("sms low key\n")); 918 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 919 DELAY(200); 920 921 buf[0] = 0x01; 922 buf[1] = 0xc0; 923 ASMC_DPRINTF(("sms high key\n")); 924 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 925 DELAY(200); 926 927 /* 928 * I'm not sure what this key does, but it seems to be 929 * required. 930 */ 931 buf[0] = 0x01; 932 ASMC_DPRINTF(("sms flag key\n")); 933 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 934 DELAY(100); 935 936 sc->sc_sms_intr_works = 0; 937 938 /* 939 * Retry SMS initialization 1000 times 940 * (takes approx. 2 seconds in worst case) 941 */ 942 for (i = 0; i < 1000; i++) { 943 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 944 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 945 error = 0; 946 sc->sc_sms_intr_works = 1; 947 goto out; 948 } 949 buf[0] = ASMC_SMS_INIT1; 950 buf[1] = ASMC_SMS_INIT2; 951 ASMC_DPRINTF(("sms key\n")); 952 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 953 DELAY(50); 954 } 955 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 956 957 out: 958 asmc_sms_calibrate(dev); 959 nosms: 960 sc->sc_nfan = asmc_fan_count(dev); 961 if (sc->sc_nfan > ASMC_MAXFANS) { 962 device_printf(dev, "more than %d fans were detected. Please " 963 "report this.\n", ASMC_MAXFANS); 964 sc->sc_nfan = ASMC_MAXFANS; 965 } 966 967 /* 968 * Read and cache the number of SMC keys (32 bit buffer) 969 */ 970 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) { 971 sc->sc_nkeys = be32dec(buf); 972 if (bootverbose) 973 device_printf(dev, "number of keys: %d\n", 974 sc->sc_nkeys); 975 } else { 976 sc->sc_nkeys = 0; 977 } 978 979 #ifdef ASMC_DEBUG 980 asmc_dumpall(dev); 981 #endif 982 983 return (error); 984 } 985 986 /* 987 * We need to make sure that the SMC acks the byte sent. 988 * Just wait up to (amount * 10) ms. 989 */ 990 static int 991 asmc_wait_ack(device_t dev, uint8_t val, int amount) 992 { 993 struct asmc_softc *sc = device_get_softc(dev); 994 u_int i; 995 996 val = val & ASMC_STATUS_MASK; 997 998 for (i = 0; i < amount; i++) { 999 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 1000 return (0); 1001 DELAY(10); 1002 } 1003 1004 return (1); 1005 } 1006 1007 /* 1008 * We need to make sure that the SMC acks the byte sent. 1009 * Just wait up to 100 ms. 1010 */ 1011 static int 1012 asmc_wait(device_t dev, uint8_t val) 1013 { 1014 #ifdef ASMC_DEBUG 1015 struct asmc_softc *sc; 1016 #endif 1017 1018 if (asmc_wait_ack(dev, val, 1000) == 0) 1019 return (0); 1020 1021 #ifdef ASMC_DEBUG 1022 sc = device_get_softc(dev); 1023 #endif 1024 val = val & ASMC_STATUS_MASK; 1025 1026 #ifdef ASMC_DEBUG 1027 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 1028 ASMC_CMDPORT_READ(sc)); 1029 #endif 1030 return (1); 1031 } 1032 1033 /* 1034 * Send the given command, retrying up to 10 times if 1035 * the acknowledgement fails. 1036 */ 1037 static int 1038 asmc_command(device_t dev, uint8_t command) 1039 { 1040 int i; 1041 struct asmc_softc *sc = device_get_softc(dev); 1042 1043 for (i = 0; i < 10; i++) { 1044 ASMC_CMDPORT_WRITE(sc, command); 1045 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 1046 return (0); 1047 } 1048 } 1049 1050 #ifdef ASMC_DEBUG 1051 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 1052 ASMC_CMDPORT_READ(sc)); 1053 #endif 1054 return (1); 1055 } 1056 1057 static int 1058 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1059 { 1060 int i, error = 1, try = 0; 1061 struct asmc_softc *sc = device_get_softc(dev); 1062 1063 mtx_lock_spin(&sc->sc_mtx); 1064 1065 begin: 1066 if (asmc_command(dev, ASMC_CMDREAD)) 1067 goto out; 1068 1069 for (i = 0; i < 4; i++) { 1070 ASMC_DATAPORT_WRITE(sc, key[i]); 1071 if (asmc_wait(dev, 0x04)) 1072 goto out; 1073 } 1074 1075 ASMC_DATAPORT_WRITE(sc, len); 1076 1077 for (i = 0; i < len; i++) { 1078 if (asmc_wait(dev, 0x05)) 1079 goto out; 1080 buf[i] = ASMC_DATAPORT_READ(sc); 1081 } 1082 1083 error = 0; 1084 out: 1085 if (error) { 1086 if (++try < 10) 1087 goto begin; 1088 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1089 __func__, key, try); 1090 } 1091 1092 mtx_unlock_spin(&sc->sc_mtx); 1093 1094 return (error); 1095 } 1096 1097 #ifdef ASMC_DEBUG 1098 static int 1099 asmc_key_dump(device_t dev, int number) 1100 { 1101 struct asmc_softc *sc = device_get_softc(dev); 1102 char key[5] = { 0 }; 1103 char type[7] = { 0 }; 1104 uint8_t index[4]; 1105 uint8_t v[32]; 1106 uint8_t maxlen; 1107 int i, error = 1, try = 0; 1108 1109 mtx_lock_spin(&sc->sc_mtx); 1110 1111 index[0] = (number >> 24) & 0xff; 1112 index[1] = (number >> 16) & 0xff; 1113 index[2] = (number >> 8) & 0xff; 1114 index[3] = (number) & 0xff; 1115 1116 begin: 1117 if (asmc_command(dev, 0x12)) 1118 goto out; 1119 1120 for (i = 0; i < 4; i++) { 1121 ASMC_DATAPORT_WRITE(sc, index[i]); 1122 if (asmc_wait(dev, 0x04)) 1123 goto out; 1124 } 1125 1126 ASMC_DATAPORT_WRITE(sc, 4); 1127 1128 for (i = 0; i < 4; i++) { 1129 if (asmc_wait(dev, 0x05)) 1130 goto out; 1131 key[i] = ASMC_DATAPORT_READ(sc); 1132 } 1133 1134 /* get type */ 1135 if (asmc_command(dev, 0x13)) 1136 goto out; 1137 1138 for (i = 0; i < 4; i++) { 1139 ASMC_DATAPORT_WRITE(sc, key[i]); 1140 if (asmc_wait(dev, 0x04)) 1141 goto out; 1142 } 1143 1144 ASMC_DATAPORT_WRITE(sc, 6); 1145 1146 for (i = 0; i < 6; i++) { 1147 if (asmc_wait(dev, 0x05)) 1148 goto out; 1149 type[i] = ASMC_DATAPORT_READ(sc); 1150 } 1151 1152 error = 0; 1153 out: 1154 if (error) { 1155 if (++try < 10) 1156 goto begin; 1157 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1158 __func__, key, try); 1159 mtx_unlock_spin(&sc->sc_mtx); 1160 } else { 1161 char buf[1024]; 1162 char buf2[8]; 1163 mtx_unlock_spin(&sc->sc_mtx); 1164 maxlen = type[0]; 1165 type[0] = ' '; 1166 type[5] = 0; 1167 if (maxlen > sizeof(v)) { 1168 device_printf(dev, 1169 "WARNING: cropping maxlen from %d to %zu\n", 1170 maxlen, sizeof(v)); 1171 maxlen = sizeof(v); 1172 } 1173 for (i = 0; i < sizeof(v); i++) { 1174 v[i] = 0; 1175 } 1176 asmc_key_read(dev, key, v, maxlen); 1177 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1178 "(len %d), data", number, key, type, maxlen); 1179 for (i = 0; i < maxlen; i++) { 1180 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1181 strlcat(buf, buf2, sizeof(buf)); 1182 } 1183 strlcat(buf, " \n", sizeof(buf)); 1184 device_printf(dev, "%s", buf); 1185 } 1186 1187 return (error); 1188 } 1189 #endif 1190 1191 static int 1192 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1193 { 1194 int i, error = -1, try = 0; 1195 struct asmc_softc *sc = device_get_softc(dev); 1196 1197 mtx_lock_spin(&sc->sc_mtx); 1198 1199 begin: 1200 ASMC_DPRINTF(("cmd port: cmd write\n")); 1201 if (asmc_command(dev, ASMC_CMDWRITE)) 1202 goto out; 1203 1204 ASMC_DPRINTF(("data port: key\n")); 1205 for (i = 0; i < 4; i++) { 1206 ASMC_DATAPORT_WRITE(sc, key[i]); 1207 if (asmc_wait(dev, 0x04)) 1208 goto out; 1209 } 1210 ASMC_DPRINTF(("data port: length\n")); 1211 ASMC_DATAPORT_WRITE(sc, len); 1212 1213 ASMC_DPRINTF(("data port: buffer\n")); 1214 for (i = 0; i < len; i++) { 1215 if (asmc_wait(dev, 0x04)) 1216 goto out; 1217 ASMC_DATAPORT_WRITE(sc, buf[i]); 1218 } 1219 1220 error = 0; 1221 out: 1222 if (error) { 1223 if (++try < 10) 1224 goto begin; 1225 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1226 __func__, key, try); 1227 } 1228 1229 mtx_unlock_spin(&sc->sc_mtx); 1230 1231 return (error); 1232 } 1233 1234 /* 1235 * Fan control functions. 1236 */ 1237 static int 1238 asmc_fan_count(device_t dev) 1239 { 1240 uint8_t buf[1]; 1241 1242 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1243 return (-1); 1244 1245 return (buf[0]); 1246 } 1247 1248 static int 1249 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1250 { 1251 int speed; 1252 uint8_t buf[2]; 1253 char fankey[5]; 1254 1255 snprintf(fankey, sizeof(fankey), key, fan); 1256 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1257 return (-1); 1258 speed = (buf[0] << 6) | (buf[1] >> 2); 1259 1260 return (speed); 1261 } 1262 1263 static char * 1264 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, 1265 uint8_t buflen) 1266 { 1267 char fankey[5]; 1268 char *desc; 1269 1270 snprintf(fankey, sizeof(fankey), key, fan); 1271 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1272 return (NULL); 1273 desc = buf + 4; 1274 1275 return (desc); 1276 } 1277 1278 static int 1279 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1280 { 1281 uint8_t buf[2]; 1282 char fankey[5]; 1283 1284 speed *= 4; 1285 1286 buf[0] = speed >> 8; 1287 buf[1] = speed; 1288 1289 snprintf(fankey, sizeof(fankey), key, fan); 1290 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1291 return (-1); 1292 1293 return (0); 1294 } 1295 1296 static int 1297 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1298 { 1299 device_t dev = (device_t)arg1; 1300 int fan = arg2; 1301 int error; 1302 int32_t v; 1303 1304 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1305 error = sysctl_handle_int(oidp, &v, 0, req); 1306 1307 return (error); 1308 } 1309 1310 static int 1311 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1312 { 1313 uint8_t buf[16]; 1314 device_t dev = (device_t)arg1; 1315 int fan = arg2; 1316 int error = true; 1317 char *desc; 1318 1319 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1320 1321 if (desc != NULL) 1322 error = sysctl_handle_string(oidp, desc, 0, req); 1323 1324 return (error); 1325 } 1326 1327 static int 1328 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1329 { 1330 device_t dev = (device_t)arg1; 1331 int fan = arg2; 1332 int error; 1333 int32_t v; 1334 1335 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1336 error = sysctl_handle_int(oidp, &v, 0, req); 1337 1338 return (error); 1339 } 1340 1341 static int 1342 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1343 { 1344 device_t dev = (device_t)arg1; 1345 int fan = arg2; 1346 int error; 1347 int32_t v; 1348 1349 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1350 error = sysctl_handle_int(oidp, &v, 0, req); 1351 1352 if (error == 0 && req->newptr != NULL) { 1353 unsigned int newspeed = v; 1354 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1355 } 1356 1357 return (error); 1358 } 1359 1360 static int 1361 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1362 { 1363 device_t dev = (device_t)arg1; 1364 int fan = arg2; 1365 int error; 1366 int32_t v; 1367 1368 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1369 error = sysctl_handle_int(oidp, &v, 0, req); 1370 1371 if (error == 0 && req->newptr != NULL) { 1372 unsigned int newspeed = v; 1373 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1374 } 1375 1376 return (error); 1377 } 1378 1379 static int 1380 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1381 { 1382 device_t dev = (device_t)arg1; 1383 int fan = arg2; 1384 int error; 1385 int32_t v; 1386 1387 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1388 error = sysctl_handle_int(oidp, &v, 0, req); 1389 1390 if (error == 0 && req->newptr != NULL) { 1391 unsigned int newspeed = v; 1392 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1393 } 1394 1395 return (error); 1396 } 1397 1398 static int 1399 asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS) 1400 { 1401 device_t dev = (device_t)arg1; 1402 int fan = arg2; 1403 int error; 1404 int32_t v; 1405 uint8_t buf[2]; 1406 uint16_t val; 1407 1408 /* Read current FS! bitmask (asmc_key_read locks internally) */ 1409 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1410 if (error != 0) 1411 return (error); 1412 1413 /* Extract manual bit for this fan (big-endian) */ 1414 val = (buf[0] << 8) | buf[1]; 1415 v = (val >> fan) & 0x01; 1416 1417 /* Let sysctl handle the value */ 1418 error = sysctl_handle_int(oidp, &v, 0, req); 1419 1420 if (error == 0 && req->newptr != NULL) { 1421 /* Validate input (0 = auto, 1 = manual) */ 1422 if (v != 0 && v != 1) 1423 return (EINVAL); 1424 /* Read-modify-write of FS! bitmask */ 1425 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, 1426 sizeof(buf)); 1427 if (error == 0) { 1428 val = (buf[0] << 8) | buf[1]; 1429 1430 /* Modify single bit */ 1431 if (v) 1432 val |= (1 << fan); /* Set to manual */ 1433 else 1434 val &= ~(1 << fan); /* Set to auto */ 1435 1436 /* Write back */ 1437 buf[0] = val >> 8; 1438 buf[1] = val & 0xff; 1439 error = asmc_key_write(dev, ASMC_KEY_FANMANUAL, buf, 1440 sizeof(buf)); 1441 } 1442 } 1443 1444 return (error); 1445 } 1446 1447 /* 1448 * Temperature functions. 1449 */ 1450 static int 1451 asmc_temp_getvalue(device_t dev, const char *key) 1452 { 1453 uint8_t buf[2]; 1454 1455 /* 1456 * Check for invalid temperatures. 1457 */ 1458 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1459 return (-1); 1460 1461 return (buf[0]); 1462 } 1463 1464 static int 1465 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1466 { 1467 device_t dev = (device_t)arg1; 1468 struct asmc_softc *sc = device_get_softc(dev); 1469 int error, val; 1470 1471 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1472 error = sysctl_handle_int(oidp, &val, 0, req); 1473 1474 return (error); 1475 } 1476 1477 /* 1478 * Sudden Motion Sensor functions. 1479 */ 1480 static int 1481 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1482 { 1483 uint8_t buf[2]; 1484 int error; 1485 1486 /* no need to do locking here as asmc_key_read() already does it */ 1487 switch (key[3]) { 1488 case 'X': 1489 case 'Y': 1490 case 'Z': 1491 error = asmc_key_read(dev, key, buf, sizeof buf); 1492 break; 1493 default: 1494 device_printf(dev, "%s called with invalid argument %s\n", 1495 __func__, key); 1496 error = 1; 1497 goto out; 1498 } 1499 *val = ((int16_t)buf[0] << 8) | buf[1]; 1500 out: 1501 return (error); 1502 } 1503 1504 static void 1505 asmc_sms_calibrate(device_t dev) 1506 { 1507 struct asmc_softc *sc = device_get_softc(dev); 1508 1509 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1510 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1511 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1512 } 1513 1514 static int 1515 asmc_sms_intrfast(void *arg) 1516 { 1517 uint8_t type; 1518 device_t dev = (device_t)arg; 1519 struct asmc_softc *sc = device_get_softc(dev); 1520 if (!sc->sc_sms_intr_works) 1521 return (FILTER_HANDLED); 1522 1523 mtx_lock_spin(&sc->sc_mtx); 1524 type = ASMC_INTPORT_READ(sc); 1525 mtx_unlock_spin(&sc->sc_mtx); 1526 1527 sc->sc_sms_intrtype = type; 1528 asmc_sms_printintr(dev, type); 1529 1530 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1531 return (FILTER_HANDLED); 1532 } 1533 1534 static void 1535 asmc_sms_printintr(device_t dev, uint8_t type) 1536 { 1537 struct asmc_softc *sc = device_get_softc(dev); 1538 1539 switch (type) { 1540 case ASMC_SMS_INTFF: 1541 device_printf(dev, "WARNING: possible free fall!\n"); 1542 break; 1543 case ASMC_SMS_INTHA: 1544 device_printf(dev, "WARNING: high acceleration detected!\n"); 1545 break; 1546 case ASMC_SMS_INTSH: 1547 device_printf(dev, "WARNING: possible shock!\n"); 1548 break; 1549 case ASMC_ALSL_INT2A: 1550 /* 1551 * This suppresses console and log messages for the ambient 1552 * light sensor for models known to generate this interrupt. 1553 */ 1554 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1555 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1556 break; 1557 /* FALLTHROUGH */ 1558 default: 1559 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1560 } 1561 } 1562 1563 static void 1564 asmc_sms_task(void *arg, int pending) 1565 { 1566 struct asmc_softc *sc = (struct asmc_softc *)arg; 1567 char notify[16]; 1568 int type; 1569 1570 switch (sc->sc_sms_intrtype) { 1571 case ASMC_SMS_INTFF: 1572 type = 2; 1573 break; 1574 case ASMC_SMS_INTHA: 1575 type = 1; 1576 break; 1577 case ASMC_SMS_INTSH: 1578 type = 0; 1579 break; 1580 default: 1581 type = 255; 1582 } 1583 1584 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1585 devctl_notify("ACPI", "asmc", "SMS", notify); 1586 } 1587 1588 static int 1589 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1590 { 1591 device_t dev = (device_t)arg1; 1592 int error; 1593 int16_t val; 1594 int32_t v; 1595 1596 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1597 v = (int32_t)val; 1598 error = sysctl_handle_int(oidp, &v, 0, req); 1599 1600 return (error); 1601 } 1602 1603 static int 1604 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1605 { 1606 device_t dev = (device_t)arg1; 1607 int error; 1608 int16_t val; 1609 int32_t v; 1610 1611 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1612 v = (int32_t)val; 1613 error = sysctl_handle_int(oidp, &v, 0, req); 1614 1615 return (error); 1616 } 1617 1618 static int 1619 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1620 { 1621 device_t dev = (device_t)arg1; 1622 int error; 1623 int16_t val; 1624 int32_t v; 1625 1626 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1627 v = (int32_t)val; 1628 error = sysctl_handle_int(oidp, &v, 0, req); 1629 1630 return (error); 1631 } 1632 1633 static int 1634 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1635 { 1636 device_t dev = (device_t)arg1; 1637 uint8_t buf[6]; 1638 int error; 1639 int32_t v; 1640 1641 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1642 v = buf[2]; 1643 error = sysctl_handle_int(oidp, &v, 0, req); 1644 1645 return (error); 1646 } 1647 1648 static int 1649 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1650 { 1651 device_t dev = (device_t)arg1; 1652 uint8_t buf[6]; 1653 int error; 1654 int32_t v; 1655 1656 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1657 v = buf[2]; 1658 error = sysctl_handle_int(oidp, &v, 0, req); 1659 1660 return (error); 1661 } 1662 1663 static int 1664 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1665 { 1666 device_t dev = (device_t)arg1; 1667 uint8_t buf[2]; 1668 int error; 1669 int v; 1670 1671 v = light_control; 1672 error = sysctl_handle_int(oidp, &v, 0, req); 1673 1674 if (error == 0 && req->newptr != NULL) { 1675 if (v < 0 || v > 255) 1676 return (EINVAL); 1677 light_control = v; 1678 buf[0] = light_control; 1679 buf[1] = 0x00; 1680 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1681 } 1682 return (error); 1683 } 1684 1685 static int 1686 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1687 { 1688 device_t dev = (device_t)arg1; 1689 uint8_t buf[10]; 1690 int error; 1691 uint32_t v; 1692 1693 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1694 1695 /* 1696 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1697 * 1698 * Extract it out manually here, then shift/clamp it. 1699 */ 1700 v = be32dec(&buf[6]); 1701 1702 /* 1703 * Shift out, clamp at 255; that way it looks like the 1704 * earlier SMC firmware version responses. 1705 */ 1706 v = v >> 8; 1707 if (v > 255) 1708 v = 255; 1709 1710 error = sysctl_handle_int(oidp, &v, 0, req); 1711 1712 return (error); 1713 } 1714