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, ##__VA_ARGS__) 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]), OID_AUTO, name, 649 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Subtree"); 650 651 SYSCTL_ADD_PROC(sysctlctx, 652 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 653 OID_AUTO, "id", 654 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j, 655 model->smc_fan_id, "I", "Fan ID"); 656 657 SYSCTL_ADD_PROC(sysctlctx, 658 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 659 OID_AUTO, "speed", 660 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j, 661 model->smc_fan_speed, "I", "Fan speed in RPM"); 662 663 SYSCTL_ADD_PROC(sysctlctx, 664 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 665 OID_AUTO, "safespeed", 666 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, j, 667 model->smc_fan_safespeed, "I", "Fan safe speed in RPM"); 668 669 SYSCTL_ADD_PROC(sysctlctx, 670 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 671 OID_AUTO, "minspeed", 672 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j, 673 model->smc_fan_minspeed, "I", "Fan minimum speed in RPM"); 674 675 SYSCTL_ADD_PROC(sysctlctx, 676 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 677 OID_AUTO, "maxspeed", 678 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j, 679 model->smc_fan_maxspeed, "I", "Fan maximum speed in RPM"); 680 681 SYSCTL_ADD_PROC(sysctlctx, 682 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 683 OID_AUTO, "targetspeed", 684 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j, 685 model->smc_fan_targetspeed, "I", "Fan target speed in RPM"); 686 687 SYSCTL_ADD_PROC(sysctlctx, 688 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 689 OID_AUTO, "manual", 690 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, dev, j, 691 asmc_mb_sysctl_fanmanual, "I", 692 "Fan manual mode (0=auto, 1=manual)"); 693 } 694 695 /* 696 * dev.asmc.n.temp tree. 697 */ 698 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 699 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 700 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 701 702 for (i = 0; model->smc_temps[i]; i++) { 703 SYSCTL_ADD_PROC(sysctlctx, 704 SYSCTL_CHILDREN(sc->sc_temp_tree), 705 OID_AUTO, model->smc_tempnames[i], 706 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, i, 707 asmc_temp_sysctl, "I", 708 model->smc_tempdescs[i]); 709 } 710 711 /* 712 * dev.asmc.n.light 713 */ 714 if (model->smc_light_left) { 715 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 716 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 717 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 718 "Keyboard backlight sensors"); 719 720 SYSCTL_ADD_PROC(sysctlctx, 721 SYSCTL_CHILDREN(sc->sc_light_tree), 722 OID_AUTO, "left", 723 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 724 dev, 0, model->smc_light_left, "I", 725 "Keyboard backlight left sensor"); 726 727 SYSCTL_ADD_PROC(sysctlctx, 728 SYSCTL_CHILDREN(sc->sc_light_tree), 729 OID_AUTO, "right", 730 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, dev, 0, 731 model->smc_light_right, "I", 732 "Keyboard backlight right sensor"); 733 734 SYSCTL_ADD_PROC(sysctlctx, 735 SYSCTL_CHILDREN(sc->sc_light_tree), 736 OID_AUTO, "control", 737 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | CTLFLAG_MPSAFE, 738 dev, 0, model->smc_light_control, "I", 739 "Keyboard backlight brightness control"); 740 } 741 742 if (model->smc_sms_x == NULL) 743 goto nosms; 744 745 /* 746 * dev.asmc.n.sms tree. 747 */ 748 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 749 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 750 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 751 752 SYSCTL_ADD_PROC(sysctlctx, 753 SYSCTL_CHILDREN(sc->sc_sms_tree), 754 OID_AUTO, "x", 755 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 756 dev, 0, model->smc_sms_x, "I", 757 "Sudden Motion Sensor X value"); 758 759 SYSCTL_ADD_PROC(sysctlctx, 760 SYSCTL_CHILDREN(sc->sc_sms_tree), 761 OID_AUTO, "y", 762 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 763 dev, 0, model->smc_sms_y, "I", 764 "Sudden Motion Sensor Y value"); 765 766 SYSCTL_ADD_PROC(sysctlctx, 767 SYSCTL_CHILDREN(sc->sc_sms_tree), 768 OID_AUTO, "z", 769 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 770 dev, 0, model->smc_sms_z, "I", 771 "Sudden Motion Sensor Z value"); 772 773 /* 774 * Need a taskqueue to send devctl_notify() events 775 * when the SMS interrupt us. 776 * 777 * PI_REALTIME is used due to the sensitivity of the 778 * interrupt. An interrupt from the SMS means that the 779 * disk heads should be turned off as quickly as possible. 780 * 781 * We only need to do this for the non INTR_FILTER case. 782 */ 783 sc->sc_sms_tq = NULL; 784 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 785 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 786 taskqueue_thread_enqueue, &sc->sc_sms_tq); 787 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 788 device_get_nameunit(dev)); 789 /* 790 * Allocate an IRQ for the SMS. 791 */ 792 sc->sc_rid_irq = 0; 793 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_rid_irq, 794 RF_ACTIVE); 795 if (sc->sc_irq == NULL) { 796 device_printf(dev, "unable to allocate IRQ resource\n"); 797 ret = ENXIO; 798 goto err; 799 } 800 801 ret = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_MISC | INTR_MPSAFE, 802 asmc_sms_intrfast, NULL, dev, &sc->sc_cookie); 803 if (ret) { 804 device_printf(dev, "unable to setup SMS IRQ\n"); 805 goto err; 806 } 807 808 nosms: 809 return (0); 810 811 err: 812 asmc_detach(dev); 813 814 return (ret); 815 } 816 817 static int 818 asmc_detach(device_t dev) 819 { 820 struct asmc_softc *sc = device_get_softc(dev); 821 822 if (sc->sc_sms_tq) { 823 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 824 taskqueue_free(sc->sc_sms_tq); 825 sc->sc_sms_tq = NULL; 826 } 827 if (sc->sc_cookie) { 828 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 829 sc->sc_cookie = NULL; 830 } 831 if (sc->sc_irq) { 832 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 833 sc->sc_irq); 834 sc->sc_irq = NULL; 835 } 836 if (sc->sc_ioport) { 837 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 838 sc->sc_ioport); 839 sc->sc_ioport = NULL; 840 } 841 if (mtx_initialized(&sc->sc_mtx)) { 842 mtx_destroy(&sc->sc_mtx); 843 } 844 845 return (0); 846 } 847 848 static int 849 asmc_resume(device_t dev) 850 { 851 uint8_t buf[2]; 852 853 buf[0] = light_control; 854 buf[1] = 0x00; 855 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof(buf)); 856 857 return (0); 858 } 859 860 #ifdef ASMC_DEBUG 861 void 862 asmc_dumpall(device_t dev) 863 { 864 struct asmc_softc *sc = device_get_softc(dev); 865 int i; 866 867 if (sc->sc_nkeys == 0) { 868 device_printf(dev, "asmc_dumpall: key count not available\n"); 869 return; 870 } 871 872 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys); 873 for (i = 0; i < sc->sc_nkeys; i++) 874 asmc_key_dump(dev, i); 875 } 876 #endif 877 878 static int 879 asmc_init(device_t dev) 880 { 881 struct asmc_softc *sc = device_get_softc(dev); 882 int i, error = 1; 883 uint8_t buf[4]; 884 885 if (sc->sc_model->smc_sms_x == NULL) 886 goto nosms; 887 888 /* 889 * We are ready to receive interrupts from the SMS. 890 */ 891 buf[0] = 0x01; 892 ASMC_DPRINTF(("intok key\n")); 893 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 894 DELAY(50); 895 896 /* 897 * Initiate the polling intervals. 898 */ 899 buf[0] = 20; /* msecs */ 900 ASMC_DPRINTF(("low int key\n")); 901 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 902 DELAY(200); 903 904 buf[0] = 20; /* msecs */ 905 ASMC_DPRINTF(("high int key\n")); 906 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 907 DELAY(200); 908 909 buf[0] = 0x00; 910 buf[1] = 0x60; 911 ASMC_DPRINTF(("sms low key\n")); 912 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 913 DELAY(200); 914 915 buf[0] = 0x01; 916 buf[1] = 0xc0; 917 ASMC_DPRINTF(("sms high key\n")); 918 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 919 DELAY(200); 920 921 /* 922 * I'm not sure what this key does, but it seems to be 923 * required. 924 */ 925 buf[0] = 0x01; 926 ASMC_DPRINTF(("sms flag key\n")); 927 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 928 DELAY(100); 929 930 sc->sc_sms_intr_works = 0; 931 932 /* 933 * Retry SMS initialization 1000 times 934 * (takes approx. 2 seconds in worst case) 935 */ 936 for (i = 0; i < 1000; i++) { 937 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 938 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 939 error = 0; 940 sc->sc_sms_intr_works = 1; 941 goto out; 942 } 943 buf[0] = ASMC_SMS_INIT1; 944 buf[1] = ASMC_SMS_INIT2; 945 ASMC_DPRINTF(("sms key\n")); 946 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 947 DELAY(50); 948 } 949 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 950 951 out: 952 asmc_sms_calibrate(dev); 953 nosms: 954 sc->sc_nfan = asmc_fan_count(dev); 955 if (sc->sc_nfan > ASMC_MAXFANS) { 956 device_printf(dev, 957 "more than %d fans were detected. Please report this.\n", 958 ASMC_MAXFANS); 959 sc->sc_nfan = ASMC_MAXFANS; 960 } 961 962 /* 963 * Read and cache the number of SMC keys (32 bit buffer) 964 */ 965 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) { 966 sc->sc_nkeys = be32dec(buf); 967 if (bootverbose) 968 device_printf(dev, "number of keys: %d\n", 969 sc->sc_nkeys); 970 } else { 971 sc->sc_nkeys = 0; 972 } 973 974 #ifdef ASMC_DEBUG 975 asmc_dumpall(dev); 976 #endif 977 978 return (error); 979 } 980 981 /* 982 * We need to make sure that the SMC acks the byte sent. 983 * Just wait up to (amount * 10) ms. 984 */ 985 static int 986 asmc_wait_ack(device_t dev, uint8_t val, int amount) 987 { 988 struct asmc_softc *sc = device_get_softc(dev); 989 u_int i; 990 991 val = val & ASMC_STATUS_MASK; 992 993 for (i = 0; i < amount; i++) { 994 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 995 return (0); 996 DELAY(10); 997 } 998 999 return (1); 1000 } 1001 1002 /* 1003 * We need to make sure that the SMC acks the byte sent. 1004 * Just wait up to 100 ms. 1005 */ 1006 static int 1007 asmc_wait(device_t dev, uint8_t val) 1008 { 1009 #ifdef ASMC_DEBUG 1010 struct asmc_softc *sc; 1011 #endif 1012 1013 if (asmc_wait_ack(dev, val, 1000) == 0) 1014 return (0); 1015 1016 #ifdef ASMC_DEBUG 1017 sc = device_get_softc(dev); 1018 1019 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, 1020 val & ASMC_STATUS_MASK, ASMC_CMDPORT_READ(sc)); 1021 #endif 1022 return (1); 1023 } 1024 1025 /* 1026 * Send the given command, retrying up to 10 times if 1027 * the acknowledgement fails. 1028 */ 1029 static int 1030 asmc_command(device_t dev, uint8_t command) 1031 { 1032 int i; 1033 struct asmc_softc *sc = device_get_softc(dev); 1034 1035 for (i = 0; i < 10; i++) { 1036 ASMC_CMDPORT_WRITE(sc, command); 1037 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 1038 return (0); 1039 } 1040 } 1041 1042 #ifdef ASMC_DEBUG 1043 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 1044 ASMC_CMDPORT_READ(sc)); 1045 #endif 1046 return (1); 1047 } 1048 1049 static int 1050 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1051 { 1052 int i, error = 1, try = 0; 1053 struct asmc_softc *sc = device_get_softc(dev); 1054 1055 mtx_lock_spin(&sc->sc_mtx); 1056 1057 begin: 1058 if (asmc_command(dev, ASMC_CMDREAD)) 1059 goto out; 1060 1061 for (i = 0; i < 4; i++) { 1062 ASMC_DATAPORT_WRITE(sc, key[i]); 1063 if (asmc_wait(dev, 0x04)) 1064 goto out; 1065 } 1066 1067 ASMC_DATAPORT_WRITE(sc, len); 1068 1069 for (i = 0; i < len; i++) { 1070 if (asmc_wait(dev, 0x05)) 1071 goto out; 1072 buf[i] = ASMC_DATAPORT_READ(sc); 1073 } 1074 1075 error = 0; 1076 out: 1077 if (error) { 1078 if (++try < 10) 1079 goto begin; 1080 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1081 __func__, key, try); 1082 } 1083 1084 mtx_unlock_spin(&sc->sc_mtx); 1085 1086 return (error); 1087 } 1088 1089 #ifdef ASMC_DEBUG 1090 static int 1091 asmc_key_dump(device_t dev, int number) 1092 { 1093 struct asmc_softc *sc = device_get_softc(dev); 1094 char key[5] = { 0 }; 1095 char type[7] = { 0 }; 1096 uint8_t index[4]; 1097 uint8_t v[32]; 1098 uint8_t maxlen; 1099 int i, error = 1, try = 0; 1100 1101 mtx_lock_spin(&sc->sc_mtx); 1102 1103 index[0] = (number >> 24) & 0xff; 1104 index[1] = (number >> 16) & 0xff; 1105 index[2] = (number >> 8) & 0xff; 1106 index[3] = (number) & 0xff; 1107 1108 begin: 1109 if (asmc_command(dev, 0x12)) 1110 goto out; 1111 1112 for (i = 0; i < 4; i++) { 1113 ASMC_DATAPORT_WRITE(sc, index[i]); 1114 if (asmc_wait(dev, 0x04)) 1115 goto out; 1116 } 1117 1118 ASMC_DATAPORT_WRITE(sc, 4); 1119 1120 for (i = 0; i < 4; i++) { 1121 if (asmc_wait(dev, 0x05)) 1122 goto out; 1123 key[i] = ASMC_DATAPORT_READ(sc); 1124 } 1125 1126 /* get type */ 1127 if (asmc_command(dev, 0x13)) 1128 goto out; 1129 1130 for (i = 0; i < 4; i++) { 1131 ASMC_DATAPORT_WRITE(sc, key[i]); 1132 if (asmc_wait(dev, 0x04)) 1133 goto out; 1134 } 1135 1136 ASMC_DATAPORT_WRITE(sc, 6); 1137 1138 for (i = 0; i < 6; i++) { 1139 if (asmc_wait(dev, 0x05)) 1140 goto out; 1141 type[i] = ASMC_DATAPORT_READ(sc); 1142 } 1143 1144 error = 0; 1145 out: 1146 if (error) { 1147 if (++try < 10) 1148 goto begin; 1149 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1150 __func__, key, try); 1151 mtx_unlock_spin(&sc->sc_mtx); 1152 } else { 1153 char buf[1024]; 1154 char buf2[8]; 1155 mtx_unlock_spin(&sc->sc_mtx); 1156 maxlen = type[0]; 1157 type[0] = ' '; 1158 type[5] = 0; 1159 if (maxlen > sizeof(v)) { 1160 device_printf(dev, 1161 "WARNING: cropping maxlen from %d to %zu\n", maxlen, 1162 sizeof(v)); 1163 maxlen = sizeof(v); 1164 } 1165 for (i = 0; i < sizeof(v); i++) { 1166 v[i] = 0; 1167 } 1168 asmc_key_read(dev, key, v, maxlen); 1169 snprintf(buf, sizeof(buf), 1170 "key %d is: %s, type %s (len %d), data", 1171 number, key, type, maxlen); 1172 for (i = 0; i < maxlen; i++) { 1173 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1174 strlcat(buf, buf2, sizeof(buf)); 1175 } 1176 strlcat(buf, " \n", sizeof(buf)); 1177 device_printf(dev, "%s", buf); 1178 } 1179 1180 return (error); 1181 } 1182 #endif 1183 1184 static int 1185 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1186 { 1187 int i, error = -1, try = 0; 1188 struct asmc_softc *sc = device_get_softc(dev); 1189 1190 mtx_lock_spin(&sc->sc_mtx); 1191 1192 begin: 1193 ASMC_DPRINTF(("cmd port: cmd write\n")); 1194 if (asmc_command(dev, ASMC_CMDWRITE)) 1195 goto out; 1196 1197 ASMC_DPRINTF(("data port: key\n")); 1198 for (i = 0; i < 4; i++) { 1199 ASMC_DATAPORT_WRITE(sc, key[i]); 1200 if (asmc_wait(dev, 0x04)) 1201 goto out; 1202 } 1203 ASMC_DPRINTF(("data port: length\n")); 1204 ASMC_DATAPORT_WRITE(sc, len); 1205 1206 ASMC_DPRINTF(("data port: buffer\n")); 1207 for (i = 0; i < len; i++) { 1208 if (asmc_wait(dev, 0x04)) 1209 goto out; 1210 ASMC_DATAPORT_WRITE(sc, buf[i]); 1211 } 1212 1213 error = 0; 1214 out: 1215 if (error) { 1216 if (++try < 10) 1217 goto begin; 1218 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1219 __func__, key, try); 1220 } 1221 1222 mtx_unlock_spin(&sc->sc_mtx); 1223 1224 return (error); 1225 } 1226 1227 /* 1228 * Fan control functions. 1229 */ 1230 static int 1231 asmc_fan_count(device_t dev) 1232 { 1233 uint8_t buf[1]; 1234 1235 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof(buf)) != 0) 1236 return (-1); 1237 1238 return (buf[0]); 1239 } 1240 1241 static int 1242 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1243 { 1244 int speed; 1245 uint8_t buf[2]; 1246 char fankey[5]; 1247 1248 snprintf(fankey, sizeof(fankey), key, fan); 1249 if (asmc_key_read(dev, fankey, buf, sizeof(buf)) != 0) 1250 return (-1); 1251 speed = (buf[0] << 6) | (buf[1] >> 2); 1252 1253 return (speed); 1254 } 1255 1256 static char * 1257 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, 1258 uint8_t buflen) 1259 { 1260 char fankey[5]; 1261 char *desc; 1262 1263 snprintf(fankey, sizeof(fankey), key, fan); 1264 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1265 return (NULL); 1266 desc = buf + 4; 1267 1268 return (desc); 1269 } 1270 1271 static int 1272 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1273 { 1274 uint8_t buf[2]; 1275 char fankey[5]; 1276 1277 speed *= 4; 1278 1279 buf[0] = speed >> 8; 1280 buf[1] = speed; 1281 1282 snprintf(fankey, sizeof(fankey), key, fan); 1283 if (asmc_key_write(dev, fankey, buf, sizeof(buf)) < 0) 1284 return (-1); 1285 1286 return (0); 1287 } 1288 1289 static int 1290 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1291 { 1292 device_t dev = (device_t)arg1; 1293 int fan = arg2; 1294 int error; 1295 int32_t v; 1296 1297 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1298 error = sysctl_handle_int(oidp, &v, 0, req); 1299 1300 return (error); 1301 } 1302 1303 static int 1304 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1305 { 1306 uint8_t buf[16]; 1307 device_t dev = (device_t)arg1; 1308 int fan = arg2; 1309 int error = true; 1310 char *desc; 1311 1312 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1313 1314 if (desc != NULL) 1315 error = sysctl_handle_string(oidp, desc, 0, req); 1316 1317 return (error); 1318 } 1319 1320 static int 1321 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1322 { 1323 device_t dev = (device_t)arg1; 1324 int fan = arg2; 1325 int error; 1326 int32_t v; 1327 1328 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1329 error = sysctl_handle_int(oidp, &v, 0, req); 1330 1331 return (error); 1332 } 1333 1334 static int 1335 asmc_mb_sysctl_fanminspeed(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_FANMINSPEED, fan); 1343 error = sysctl_handle_int(oidp, &v, 0, req); 1344 1345 if (error == 0 && req->newptr != NULL) { 1346 unsigned int newspeed = v; 1347 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1348 } 1349 1350 return (error); 1351 } 1352 1353 static int 1354 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1355 { 1356 device_t dev = (device_t)arg1; 1357 int fan = arg2; 1358 int error; 1359 int32_t v; 1360 1361 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1362 error = sysctl_handle_int(oidp, &v, 0, req); 1363 1364 if (error == 0 && req->newptr != NULL) { 1365 unsigned int newspeed = v; 1366 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1367 } 1368 1369 return (error); 1370 } 1371 1372 static int 1373 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1374 { 1375 device_t dev = (device_t)arg1; 1376 int fan = arg2; 1377 int error; 1378 int32_t v; 1379 1380 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1381 error = sysctl_handle_int(oidp, &v, 0, req); 1382 1383 if (error == 0 && req->newptr != NULL) { 1384 unsigned int newspeed = v; 1385 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1386 } 1387 1388 return (error); 1389 } 1390 1391 static int 1392 asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS) 1393 { 1394 device_t dev = (device_t)arg1; 1395 int fan = arg2; 1396 int error; 1397 int32_t v; 1398 uint8_t buf[2]; 1399 uint16_t val; 1400 1401 /* Read current FS! bitmask (asmc_key_read locks internally) */ 1402 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1403 if (error != 0) 1404 return (error); 1405 1406 /* Extract manual bit for this fan (big-endian) */ 1407 val = (buf[0] << 8) | buf[1]; 1408 v = (val >> fan) & 0x01; 1409 1410 /* Let sysctl handle the value */ 1411 error = sysctl_handle_int(oidp, &v, 0, req); 1412 1413 if (error == 0 && req->newptr != NULL) { 1414 /* Validate input (0 = auto, 1 = manual) */ 1415 if (v != 0 && v != 1) 1416 return (EINVAL); 1417 /* Read-modify-write of FS! bitmask */ 1418 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, 1419 sizeof(buf)); 1420 if (error == 0) { 1421 val = (buf[0] << 8) | buf[1]; 1422 1423 /* Modify single bit */ 1424 if (v) 1425 val |= (1 << fan); /* Set to manual */ 1426 else 1427 val &= ~(1 << fan); /* Set to auto */ 1428 1429 /* Write back */ 1430 buf[0] = val >> 8; 1431 buf[1] = val & 0xff; 1432 error = asmc_key_write(dev, ASMC_KEY_FANMANUAL, buf, 1433 sizeof(buf)); 1434 } 1435 } 1436 1437 return (error); 1438 } 1439 1440 /* 1441 * Temperature functions. 1442 */ 1443 static int 1444 asmc_temp_getvalue(device_t dev, const char *key) 1445 { 1446 uint8_t buf[2]; 1447 1448 /* 1449 * Check for invalid temperatures. 1450 */ 1451 if (asmc_key_read(dev, key, buf, sizeof(buf)) != 0) 1452 return (-1); 1453 1454 return (buf[0]); 1455 } 1456 1457 static int 1458 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1459 { 1460 device_t dev = (device_t)arg1; 1461 struct asmc_softc *sc = device_get_softc(dev); 1462 int error, val; 1463 1464 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1465 error = sysctl_handle_int(oidp, &val, 0, req); 1466 1467 return (error); 1468 } 1469 1470 /* 1471 * Sudden Motion Sensor functions. 1472 */ 1473 static int 1474 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1475 { 1476 uint8_t buf[2]; 1477 int error; 1478 1479 /* no need to do locking here as asmc_key_read() already does it */ 1480 switch (key[3]) { 1481 case 'X': 1482 case 'Y': 1483 case 'Z': 1484 error = asmc_key_read(dev, key, buf, sizeof(buf)); 1485 break; 1486 default: 1487 device_printf(dev, "%s called with invalid argument %s\n", 1488 __func__, key); 1489 error = EINVAL; 1490 goto out; 1491 } 1492 *val = ((int16_t)buf[0] << 8) | buf[1]; 1493 out: 1494 return (error); 1495 } 1496 1497 static void 1498 asmc_sms_calibrate(device_t dev) 1499 { 1500 struct asmc_softc *sc = device_get_softc(dev); 1501 1502 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1503 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1504 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1505 } 1506 1507 static int 1508 asmc_sms_intrfast(void *arg) 1509 { 1510 uint8_t type; 1511 device_t dev = (device_t)arg; 1512 struct asmc_softc *sc = device_get_softc(dev); 1513 if (!sc->sc_sms_intr_works) 1514 return (FILTER_HANDLED); 1515 1516 mtx_lock_spin(&sc->sc_mtx); 1517 type = ASMC_INTPORT_READ(sc); 1518 mtx_unlock_spin(&sc->sc_mtx); 1519 1520 sc->sc_sms_intrtype = type; 1521 asmc_sms_printintr(dev, type); 1522 1523 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1524 return (FILTER_HANDLED); 1525 } 1526 1527 static void 1528 asmc_sms_printintr(device_t dev, uint8_t type) 1529 { 1530 struct asmc_softc *sc = device_get_softc(dev); 1531 1532 switch (type) { 1533 case ASMC_SMS_INTFF: 1534 device_printf(dev, "WARNING: possible free fall!\n"); 1535 break; 1536 case ASMC_SMS_INTHA: 1537 device_printf(dev, "WARNING: high acceleration detected!\n"); 1538 break; 1539 case ASMC_SMS_INTSH: 1540 device_printf(dev, "WARNING: possible shock!\n"); 1541 break; 1542 case ASMC_ALSL_INT2A: 1543 /* 1544 * This suppresses console and log messages for the ambient 1545 * light sensor for models known to generate this interrupt. 1546 */ 1547 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1548 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1549 break; 1550 /* FALLTHROUGH */ 1551 default: 1552 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1553 } 1554 } 1555 1556 static void 1557 asmc_sms_task(void *arg, int pending) 1558 { 1559 struct asmc_softc *sc = (struct asmc_softc *)arg; 1560 char notify[16]; 1561 int type; 1562 1563 switch (sc->sc_sms_intrtype) { 1564 case ASMC_SMS_INTFF: 1565 type = 2; 1566 break; 1567 case ASMC_SMS_INTHA: 1568 type = 1; 1569 break; 1570 case ASMC_SMS_INTSH: 1571 type = 0; 1572 break; 1573 default: 1574 type = 255; 1575 } 1576 1577 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1578 devctl_notify("ACPI", "asmc", "SMS", notify); 1579 } 1580 1581 static int 1582 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1583 { 1584 device_t dev = (device_t)arg1; 1585 int error; 1586 int16_t val; 1587 int32_t v; 1588 1589 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1590 v = (int32_t)val; 1591 error = sysctl_handle_int(oidp, &v, 0, req); 1592 1593 return (error); 1594 } 1595 1596 static int 1597 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1598 { 1599 device_t dev = (device_t)arg1; 1600 int error; 1601 int16_t val; 1602 int32_t v; 1603 1604 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1605 v = (int32_t)val; 1606 error = sysctl_handle_int(oidp, &v, 0, req); 1607 1608 return (error); 1609 } 1610 1611 static int 1612 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1613 { 1614 device_t dev = (device_t)arg1; 1615 int error; 1616 int16_t val; 1617 int32_t v; 1618 1619 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1620 v = (int32_t)val; 1621 error = sysctl_handle_int(oidp, &v, 0, req); 1622 1623 return (error); 1624 } 1625 1626 static int 1627 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1628 { 1629 device_t dev = (device_t)arg1; 1630 uint8_t buf[6]; 1631 int error; 1632 int32_t v; 1633 1634 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof(buf)); 1635 v = buf[2]; 1636 error = sysctl_handle_int(oidp, &v, 0, req); 1637 1638 return (error); 1639 } 1640 1641 static int 1642 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1643 { 1644 device_t dev = (device_t)arg1; 1645 uint8_t buf[6]; 1646 int error; 1647 int32_t v; 1648 1649 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof(buf)); 1650 v = buf[2]; 1651 error = sysctl_handle_int(oidp, &v, 0, req); 1652 1653 return (error); 1654 } 1655 1656 static int 1657 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1658 { 1659 device_t dev = (device_t)arg1; 1660 uint8_t buf[2]; 1661 int error; 1662 int v; 1663 1664 v = light_control; 1665 error = sysctl_handle_int(oidp, &v, 0, req); 1666 1667 if (error == 0 && req->newptr != NULL) { 1668 if (v < 0 || v > 255) 1669 return (EINVAL); 1670 light_control = v; 1671 buf[0] = light_control; 1672 buf[1] = 0x00; 1673 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof(buf)); 1674 } 1675 return (error); 1676 } 1677 1678 static int 1679 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1680 { 1681 device_t dev = (device_t)arg1; 1682 uint8_t buf[10]; 1683 int error; 1684 uint32_t v; 1685 1686 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof(buf)); 1687 1688 /* 1689 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1690 * 1691 * Extract it out manually here, then shift/clamp it. 1692 */ 1693 v = be32dec(&buf[6]); 1694 1695 /* 1696 * Shift out, clamp at 255; that way it looks like the 1697 * earlier SMC firmware version responses. 1698 */ 1699 v = v >> 8; 1700 if (v > 255) 1701 v = 255; 1702 1703 error = sysctl_handle_int(oidp, &v, 0, req); 1704 1705 return (error); 1706 } 1707