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 err2; 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 err1; 806 } 807 nosms: 808 return (0); 809 err1: 810 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 811 err2: 812 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 813 sc->sc_ioport); 814 mtx_destroy(&sc->sc_mtx); 815 if (sc->sc_sms_tq) 816 taskqueue_free(sc->sc_sms_tq); 817 818 return (ret); 819 } 820 821 static int 822 asmc_detach(device_t dev) 823 { 824 struct asmc_softc *sc = device_get_softc(dev); 825 826 if (sc->sc_sms_tq) { 827 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 828 taskqueue_free(sc->sc_sms_tq); 829 } 830 if (sc->sc_cookie) 831 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 832 if (sc->sc_irq) 833 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 834 sc->sc_irq); 835 if (sc->sc_ioport) 836 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 837 sc->sc_ioport); 838 mtx_destroy(&sc->sc_mtx); 839 840 return (0); 841 } 842 843 static int 844 asmc_resume(device_t dev) 845 { 846 uint8_t buf[2]; 847 848 buf[0] = light_control; 849 buf[1] = 0x00; 850 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof(buf)); 851 852 return (0); 853 } 854 855 #ifdef ASMC_DEBUG 856 void 857 asmc_dumpall(device_t dev) 858 { 859 struct asmc_softc *sc = device_get_softc(dev); 860 int i; 861 862 if (sc->sc_nkeys == 0) { 863 device_printf(dev, "asmc_dumpall: key count not available\n"); 864 return; 865 } 866 867 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys); 868 for (i = 0; i < sc->sc_nkeys; i++) 869 asmc_key_dump(dev, i); 870 } 871 #endif 872 873 static int 874 asmc_init(device_t dev) 875 { 876 struct asmc_softc *sc = device_get_softc(dev); 877 int i, error = 1; 878 uint8_t buf[4]; 879 880 if (sc->sc_model->smc_sms_x == NULL) 881 goto nosms; 882 883 /* 884 * We are ready to receive interrupts from the SMS. 885 */ 886 buf[0] = 0x01; 887 ASMC_DPRINTF(("intok key\n")); 888 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 889 DELAY(50); 890 891 /* 892 * Initiate the polling intervals. 893 */ 894 buf[0] = 20; /* msecs */ 895 ASMC_DPRINTF(("low int key\n")); 896 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 897 DELAY(200); 898 899 buf[0] = 20; /* msecs */ 900 ASMC_DPRINTF(("high int key\n")); 901 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 902 DELAY(200); 903 904 buf[0] = 0x00; 905 buf[1] = 0x60; 906 ASMC_DPRINTF(("sms low key\n")); 907 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 908 DELAY(200); 909 910 buf[0] = 0x01; 911 buf[1] = 0xc0; 912 ASMC_DPRINTF(("sms high key\n")); 913 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 914 DELAY(200); 915 916 /* 917 * I'm not sure what this key does, but it seems to be 918 * required. 919 */ 920 buf[0] = 0x01; 921 ASMC_DPRINTF(("sms flag key\n")); 922 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 923 DELAY(100); 924 925 sc->sc_sms_intr_works = 0; 926 927 /* 928 * Retry SMS initialization 1000 times 929 * (takes approx. 2 seconds in worst case) 930 */ 931 for (i = 0; i < 1000; i++) { 932 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 933 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 934 error = 0; 935 sc->sc_sms_intr_works = 1; 936 goto out; 937 } 938 buf[0] = ASMC_SMS_INIT1; 939 buf[1] = ASMC_SMS_INIT2; 940 ASMC_DPRINTF(("sms key\n")); 941 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 942 DELAY(50); 943 } 944 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 945 946 out: 947 asmc_sms_calibrate(dev); 948 nosms: 949 sc->sc_nfan = asmc_fan_count(dev); 950 if (sc->sc_nfan > ASMC_MAXFANS) { 951 device_printf(dev, 952 "more than %d fans were detected. Please report this.\n", 953 ASMC_MAXFANS); 954 sc->sc_nfan = ASMC_MAXFANS; 955 } 956 957 /* 958 * Read and cache the number of SMC keys (32 bit buffer) 959 */ 960 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) { 961 sc->sc_nkeys = be32dec(buf); 962 if (bootverbose) 963 device_printf(dev, "number of keys: %d\n", 964 sc->sc_nkeys); 965 } else { 966 sc->sc_nkeys = 0; 967 } 968 969 #ifdef ASMC_DEBUG 970 asmc_dumpall(dev); 971 #endif 972 973 return (error); 974 } 975 976 /* 977 * We need to make sure that the SMC acks the byte sent. 978 * Just wait up to (amount * 10) ms. 979 */ 980 static int 981 asmc_wait_ack(device_t dev, uint8_t val, int amount) 982 { 983 struct asmc_softc *sc = device_get_softc(dev); 984 u_int i; 985 986 val = val & ASMC_STATUS_MASK; 987 988 for (i = 0; i < amount; i++) { 989 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 990 return (0); 991 DELAY(10); 992 } 993 994 return (1); 995 } 996 997 /* 998 * We need to make sure that the SMC acks the byte sent. 999 * Just wait up to 100 ms. 1000 */ 1001 static int 1002 asmc_wait(device_t dev, uint8_t val) 1003 { 1004 #ifdef ASMC_DEBUG 1005 struct asmc_softc *sc; 1006 #endif 1007 1008 if (asmc_wait_ack(dev, val, 1000) == 0) 1009 return (0); 1010 1011 #ifdef ASMC_DEBUG 1012 sc = device_get_softc(dev); 1013 1014 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, 1015 val & ASMC_STATUS_MASK, ASMC_CMDPORT_READ(sc)); 1016 #endif 1017 return (1); 1018 } 1019 1020 /* 1021 * Send the given command, retrying up to 10 times if 1022 * the acknowledgement fails. 1023 */ 1024 static int 1025 asmc_command(device_t dev, uint8_t command) 1026 { 1027 int i; 1028 struct asmc_softc *sc = device_get_softc(dev); 1029 1030 for (i = 0; i < 10; i++) { 1031 ASMC_CMDPORT_WRITE(sc, command); 1032 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 1033 return (0); 1034 } 1035 } 1036 1037 #ifdef ASMC_DEBUG 1038 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 1039 ASMC_CMDPORT_READ(sc)); 1040 #endif 1041 return (1); 1042 } 1043 1044 static int 1045 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1046 { 1047 int i, error = 1, try = 0; 1048 struct asmc_softc *sc = device_get_softc(dev); 1049 1050 mtx_lock_spin(&sc->sc_mtx); 1051 1052 begin: 1053 if (asmc_command(dev, ASMC_CMDREAD)) 1054 goto out; 1055 1056 for (i = 0; i < 4; i++) { 1057 ASMC_DATAPORT_WRITE(sc, key[i]); 1058 if (asmc_wait(dev, 0x04)) 1059 goto out; 1060 } 1061 1062 ASMC_DATAPORT_WRITE(sc, len); 1063 1064 for (i = 0; i < len; i++) { 1065 if (asmc_wait(dev, 0x05)) 1066 goto out; 1067 buf[i] = ASMC_DATAPORT_READ(sc); 1068 } 1069 1070 error = 0; 1071 out: 1072 if (error) { 1073 if (++try < 10) 1074 goto begin; 1075 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1076 __func__, key, try); 1077 } 1078 1079 mtx_unlock_spin(&sc->sc_mtx); 1080 1081 return (error); 1082 } 1083 1084 #ifdef ASMC_DEBUG 1085 static int 1086 asmc_key_dump(device_t dev, int number) 1087 { 1088 struct asmc_softc *sc = device_get_softc(dev); 1089 char key[5] = { 0 }; 1090 char type[7] = { 0 }; 1091 uint8_t index[4]; 1092 uint8_t v[32]; 1093 uint8_t maxlen; 1094 int i, error = 1, try = 0; 1095 1096 mtx_lock_spin(&sc->sc_mtx); 1097 1098 index[0] = (number >> 24) & 0xff; 1099 index[1] = (number >> 16) & 0xff; 1100 index[2] = (number >> 8) & 0xff; 1101 index[3] = (number) & 0xff; 1102 1103 begin: 1104 if (asmc_command(dev, 0x12)) 1105 goto out; 1106 1107 for (i = 0; i < 4; i++) { 1108 ASMC_DATAPORT_WRITE(sc, index[i]); 1109 if (asmc_wait(dev, 0x04)) 1110 goto out; 1111 } 1112 1113 ASMC_DATAPORT_WRITE(sc, 4); 1114 1115 for (i = 0; i < 4; i++) { 1116 if (asmc_wait(dev, 0x05)) 1117 goto out; 1118 key[i] = ASMC_DATAPORT_READ(sc); 1119 } 1120 1121 /* get type */ 1122 if (asmc_command(dev, 0x13)) 1123 goto out; 1124 1125 for (i = 0; i < 4; i++) { 1126 ASMC_DATAPORT_WRITE(sc, key[i]); 1127 if (asmc_wait(dev, 0x04)) 1128 goto out; 1129 } 1130 1131 ASMC_DATAPORT_WRITE(sc, 6); 1132 1133 for (i = 0; i < 6; i++) { 1134 if (asmc_wait(dev, 0x05)) 1135 goto out; 1136 type[i] = ASMC_DATAPORT_READ(sc); 1137 } 1138 1139 error = 0; 1140 out: 1141 if (error) { 1142 if (++try < 10) 1143 goto begin; 1144 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1145 __func__, key, try); 1146 mtx_unlock_spin(&sc->sc_mtx); 1147 } else { 1148 char buf[1024]; 1149 char buf2[8]; 1150 mtx_unlock_spin(&sc->sc_mtx); 1151 maxlen = type[0]; 1152 type[0] = ' '; 1153 type[5] = 0; 1154 if (maxlen > sizeof(v)) { 1155 device_printf(dev, 1156 "WARNING: cropping maxlen from %d to %zu\n", maxlen, 1157 sizeof(v)); 1158 maxlen = sizeof(v); 1159 } 1160 for (i = 0; i < sizeof(v); i++) { 1161 v[i] = 0; 1162 } 1163 asmc_key_read(dev, key, v, maxlen); 1164 snprintf(buf, sizeof(buf), 1165 "key %d is: %s, type %s (len %d), data", 1166 number, key, type, maxlen); 1167 for (i = 0; i < maxlen; i++) { 1168 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1169 strlcat(buf, buf2, sizeof(buf)); 1170 } 1171 strlcat(buf, " \n", sizeof(buf)); 1172 device_printf(dev, "%s", buf); 1173 } 1174 1175 return (error); 1176 } 1177 #endif 1178 1179 static int 1180 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1181 { 1182 int i, error = -1, try = 0; 1183 struct asmc_softc *sc = device_get_softc(dev); 1184 1185 mtx_lock_spin(&sc->sc_mtx); 1186 1187 begin: 1188 ASMC_DPRINTF(("cmd port: cmd write\n")); 1189 if (asmc_command(dev, ASMC_CMDWRITE)) 1190 goto out; 1191 1192 ASMC_DPRINTF(("data port: key\n")); 1193 for (i = 0; i < 4; i++) { 1194 ASMC_DATAPORT_WRITE(sc, key[i]); 1195 if (asmc_wait(dev, 0x04)) 1196 goto out; 1197 } 1198 ASMC_DPRINTF(("data port: length\n")); 1199 ASMC_DATAPORT_WRITE(sc, len); 1200 1201 ASMC_DPRINTF(("data port: buffer\n")); 1202 for (i = 0; i < len; i++) { 1203 if (asmc_wait(dev, 0x04)) 1204 goto out; 1205 ASMC_DATAPORT_WRITE(sc, buf[i]); 1206 } 1207 1208 error = 0; 1209 out: 1210 if (error) { 1211 if (++try < 10) 1212 goto begin; 1213 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1214 __func__, key, try); 1215 } 1216 1217 mtx_unlock_spin(&sc->sc_mtx); 1218 1219 return (error); 1220 } 1221 1222 /* 1223 * Fan control functions. 1224 */ 1225 static int 1226 asmc_fan_count(device_t dev) 1227 { 1228 uint8_t buf[1]; 1229 1230 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof(buf)) != 0) 1231 return (-1); 1232 1233 return (buf[0]); 1234 } 1235 1236 static int 1237 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1238 { 1239 int speed; 1240 uint8_t buf[2]; 1241 char fankey[5]; 1242 1243 snprintf(fankey, sizeof(fankey), key, fan); 1244 if (asmc_key_read(dev, fankey, buf, sizeof(buf)) != 0) 1245 return (-1); 1246 speed = (buf[0] << 6) | (buf[1] >> 2); 1247 1248 return (speed); 1249 } 1250 1251 static char * 1252 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, 1253 uint8_t buflen) 1254 { 1255 char fankey[5]; 1256 char *desc; 1257 1258 snprintf(fankey, sizeof(fankey), key, fan); 1259 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1260 return (NULL); 1261 desc = buf + 4; 1262 1263 return (desc); 1264 } 1265 1266 static int 1267 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1268 { 1269 uint8_t buf[2]; 1270 char fankey[5]; 1271 1272 speed *= 4; 1273 1274 buf[0] = speed >> 8; 1275 buf[1] = speed; 1276 1277 snprintf(fankey, sizeof(fankey), key, fan); 1278 if (asmc_key_write(dev, fankey, buf, sizeof(buf)) < 0) 1279 return (-1); 1280 1281 return (0); 1282 } 1283 1284 static int 1285 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1286 { 1287 device_t dev = (device_t)arg1; 1288 int fan = arg2; 1289 int error; 1290 int32_t v; 1291 1292 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1293 error = sysctl_handle_int(oidp, &v, 0, req); 1294 1295 return (error); 1296 } 1297 1298 static int 1299 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1300 { 1301 uint8_t buf[16]; 1302 device_t dev = (device_t)arg1; 1303 int fan = arg2; 1304 int error = true; 1305 char *desc; 1306 1307 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1308 1309 if (desc != NULL) 1310 error = sysctl_handle_string(oidp, desc, 0, req); 1311 1312 return (error); 1313 } 1314 1315 static int 1316 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1317 { 1318 device_t dev = (device_t)arg1; 1319 int fan = arg2; 1320 int error; 1321 int32_t v; 1322 1323 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1324 error = sysctl_handle_int(oidp, &v, 0, req); 1325 1326 return (error); 1327 } 1328 1329 static int 1330 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1331 { 1332 device_t dev = (device_t)arg1; 1333 int fan = arg2; 1334 int error; 1335 int32_t v; 1336 1337 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1338 error = sysctl_handle_int(oidp, &v, 0, req); 1339 1340 if (error == 0 && req->newptr != NULL) { 1341 unsigned int newspeed = v; 1342 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1343 } 1344 1345 return (error); 1346 } 1347 1348 static int 1349 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1350 { 1351 device_t dev = (device_t)arg1; 1352 int fan = arg2; 1353 int error; 1354 int32_t v; 1355 1356 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1357 error = sysctl_handle_int(oidp, &v, 0, req); 1358 1359 if (error == 0 && req->newptr != NULL) { 1360 unsigned int newspeed = v; 1361 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1362 } 1363 1364 return (error); 1365 } 1366 1367 static int 1368 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1369 { 1370 device_t dev = (device_t)arg1; 1371 int fan = arg2; 1372 int error; 1373 int32_t v; 1374 1375 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1376 error = sysctl_handle_int(oidp, &v, 0, req); 1377 1378 if (error == 0 && req->newptr != NULL) { 1379 unsigned int newspeed = v; 1380 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1381 } 1382 1383 return (error); 1384 } 1385 1386 static int 1387 asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS) 1388 { 1389 device_t dev = (device_t)arg1; 1390 int fan = arg2; 1391 int error; 1392 int32_t v; 1393 uint8_t buf[2]; 1394 uint16_t val; 1395 1396 /* Read current FS! bitmask (asmc_key_read locks internally) */ 1397 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1398 if (error != 0) 1399 return (error); 1400 1401 /* Extract manual bit for this fan (big-endian) */ 1402 val = (buf[0] << 8) | buf[1]; 1403 v = (val >> fan) & 0x01; 1404 1405 /* Let sysctl handle the value */ 1406 error = sysctl_handle_int(oidp, &v, 0, req); 1407 1408 if (error == 0 && req->newptr != NULL) { 1409 /* Validate input (0 = auto, 1 = manual) */ 1410 if (v != 0 && v != 1) 1411 return (EINVAL); 1412 /* Read-modify-write of FS! bitmask */ 1413 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, 1414 sizeof(buf)); 1415 if (error == 0) { 1416 val = (buf[0] << 8) | buf[1]; 1417 1418 /* Modify single bit */ 1419 if (v) 1420 val |= (1 << fan); /* Set to manual */ 1421 else 1422 val &= ~(1 << fan); /* Set to auto */ 1423 1424 /* Write back */ 1425 buf[0] = val >> 8; 1426 buf[1] = val & 0xff; 1427 error = asmc_key_write(dev, ASMC_KEY_FANMANUAL, buf, 1428 sizeof(buf)); 1429 } 1430 } 1431 1432 return (error); 1433 } 1434 1435 /* 1436 * Temperature functions. 1437 */ 1438 static int 1439 asmc_temp_getvalue(device_t dev, const char *key) 1440 { 1441 uint8_t buf[2]; 1442 1443 /* 1444 * Check for invalid temperatures. 1445 */ 1446 if (asmc_key_read(dev, key, buf, sizeof(buf)) != 0) 1447 return (-1); 1448 1449 return (buf[0]); 1450 } 1451 1452 static int 1453 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1454 { 1455 device_t dev = (device_t)arg1; 1456 struct asmc_softc *sc = device_get_softc(dev); 1457 int error, val; 1458 1459 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1460 error = sysctl_handle_int(oidp, &val, 0, req); 1461 1462 return (error); 1463 } 1464 1465 /* 1466 * Sudden Motion Sensor functions. 1467 */ 1468 static int 1469 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1470 { 1471 uint8_t buf[2]; 1472 int error; 1473 1474 /* no need to do locking here as asmc_key_read() already does it */ 1475 switch (key[3]) { 1476 case 'X': 1477 case 'Y': 1478 case 'Z': 1479 error = asmc_key_read(dev, key, buf, sizeof(buf)); 1480 break; 1481 default: 1482 device_printf(dev, "%s called with invalid argument %s\n", 1483 __func__, key); 1484 error = EINVAL; 1485 goto out; 1486 } 1487 *val = ((int16_t)buf[0] << 8) | buf[1]; 1488 out: 1489 return (error); 1490 } 1491 1492 static void 1493 asmc_sms_calibrate(device_t dev) 1494 { 1495 struct asmc_softc *sc = device_get_softc(dev); 1496 1497 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1498 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1499 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1500 } 1501 1502 static int 1503 asmc_sms_intrfast(void *arg) 1504 { 1505 uint8_t type; 1506 device_t dev = (device_t)arg; 1507 struct asmc_softc *sc = device_get_softc(dev); 1508 if (!sc->sc_sms_intr_works) 1509 return (FILTER_HANDLED); 1510 1511 mtx_lock_spin(&sc->sc_mtx); 1512 type = ASMC_INTPORT_READ(sc); 1513 mtx_unlock_spin(&sc->sc_mtx); 1514 1515 sc->sc_sms_intrtype = type; 1516 asmc_sms_printintr(dev, type); 1517 1518 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1519 return (FILTER_HANDLED); 1520 } 1521 1522 static void 1523 asmc_sms_printintr(device_t dev, uint8_t type) 1524 { 1525 struct asmc_softc *sc = device_get_softc(dev); 1526 1527 switch (type) { 1528 case ASMC_SMS_INTFF: 1529 device_printf(dev, "WARNING: possible free fall!\n"); 1530 break; 1531 case ASMC_SMS_INTHA: 1532 device_printf(dev, "WARNING: high acceleration detected!\n"); 1533 break; 1534 case ASMC_SMS_INTSH: 1535 device_printf(dev, "WARNING: possible shock!\n"); 1536 break; 1537 case ASMC_ALSL_INT2A: 1538 /* 1539 * This suppresses console and log messages for the ambient 1540 * light sensor for models known to generate this interrupt. 1541 */ 1542 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1543 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1544 break; 1545 /* FALLTHROUGH */ 1546 default: 1547 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1548 } 1549 } 1550 1551 static void 1552 asmc_sms_task(void *arg, int pending) 1553 { 1554 struct asmc_softc *sc = (struct asmc_softc *)arg; 1555 char notify[16]; 1556 int type; 1557 1558 switch (sc->sc_sms_intrtype) { 1559 case ASMC_SMS_INTFF: 1560 type = 2; 1561 break; 1562 case ASMC_SMS_INTHA: 1563 type = 1; 1564 break; 1565 case ASMC_SMS_INTSH: 1566 type = 0; 1567 break; 1568 default: 1569 type = 255; 1570 } 1571 1572 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1573 devctl_notify("ACPI", "asmc", "SMS", notify); 1574 } 1575 1576 static int 1577 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1578 { 1579 device_t dev = (device_t)arg1; 1580 int error; 1581 int16_t val; 1582 int32_t v; 1583 1584 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1585 v = (int32_t)val; 1586 error = sysctl_handle_int(oidp, &v, 0, req); 1587 1588 return (error); 1589 } 1590 1591 static int 1592 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1593 { 1594 device_t dev = (device_t)arg1; 1595 int error; 1596 int16_t val; 1597 int32_t v; 1598 1599 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1600 v = (int32_t)val; 1601 error = sysctl_handle_int(oidp, &v, 0, req); 1602 1603 return (error); 1604 } 1605 1606 static int 1607 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1608 { 1609 device_t dev = (device_t)arg1; 1610 int error; 1611 int16_t val; 1612 int32_t v; 1613 1614 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1615 v = (int32_t)val; 1616 error = sysctl_handle_int(oidp, &v, 0, req); 1617 1618 return (error); 1619 } 1620 1621 static int 1622 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1623 { 1624 device_t dev = (device_t)arg1; 1625 uint8_t buf[6]; 1626 int error; 1627 int32_t v; 1628 1629 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof(buf)); 1630 v = buf[2]; 1631 error = sysctl_handle_int(oidp, &v, 0, req); 1632 1633 return (error); 1634 } 1635 1636 static int 1637 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1638 { 1639 device_t dev = (device_t)arg1; 1640 uint8_t buf[6]; 1641 int error; 1642 int32_t v; 1643 1644 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof(buf)); 1645 v = buf[2]; 1646 error = sysctl_handle_int(oidp, &v, 0, req); 1647 1648 return (error); 1649 } 1650 1651 static int 1652 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1653 { 1654 device_t dev = (device_t)arg1; 1655 uint8_t buf[2]; 1656 int error; 1657 int v; 1658 1659 v = light_control; 1660 error = sysctl_handle_int(oidp, &v, 0, req); 1661 1662 if (error == 0 && req->newptr != NULL) { 1663 if (v < 0 || v > 255) 1664 return (EINVAL); 1665 light_control = v; 1666 buf[0] = light_control; 1667 buf[1] = 0x00; 1668 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof(buf)); 1669 } 1670 return (error); 1671 } 1672 1673 static int 1674 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1675 { 1676 device_t dev = (device_t)arg1; 1677 uint8_t buf[10]; 1678 int error; 1679 uint32_t v; 1680 1681 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof(buf)); 1682 1683 /* 1684 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1685 * 1686 * Extract it out manually here, then shift/clamp it. 1687 */ 1688 v = be32dec(&buf[6]); 1689 1690 /* 1691 * Shift out, clamp at 255; that way it looks like the 1692 * earlier SMC firmware version responses. 1693 */ 1694 v = v >> 8; 1695 if (v > 255) 1696 v = 255; 1697 1698 error = sysctl_handle_int(oidp, &v, 0, req); 1699 1700 return (error); 1701 } 1702