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 asmc_mb_sysctl_sms_x, asmc_mb_sysctl_sms_y, \ 138 asmc_mb_sysctl_sms_z 139 140 #define ASMC_SMS_FUNCS_DISABLED NULL, NULL, NULL 141 142 #define ASMC_FAN_FUNCS asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, asmc_mb_sysctl_fansafespeed, \ 143 asmc_mb_sysctl_fanminspeed, \ 144 asmc_mb_sysctl_fanmaxspeed, \ 145 asmc_mb_sysctl_fantargetspeed 146 147 #define ASMC_FAN_FUNCS2 asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, NULL, \ 148 asmc_mb_sysctl_fanminspeed, \ 149 asmc_mb_sysctl_fanmaxspeed, \ 150 asmc_mb_sysctl_fantargetspeed 151 152 #define ASMC_LIGHT_FUNCS asmc_mbp_sysctl_light_left, \ 153 asmc_mbp_sysctl_light_right, \ 154 asmc_mbp_sysctl_light_control 155 156 #define ASMC_LIGHT_FUNCS_10BYTE \ 157 asmc_mbp_sysctl_light_left_10byte, \ 158 NULL, \ 159 asmc_mbp_sysctl_light_control 160 161 #define ASMC_LIGHT_FUNCS_DISABLED NULL, NULL, NULL 162 163 static const struct asmc_model asmc_models[] = { 164 { 165 "MacBook1,1", "Apple SMC MacBook Core Duo", 166 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 167 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 168 }, 169 170 { 171 "MacBook2,1", "Apple SMC MacBook Core 2 Duo", 172 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 173 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 174 }, 175 176 { 177 "MacBook3,1", "Apple SMC MacBook Core 2 Duo", 178 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 179 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS 180 }, 181 182 { 183 "MacBook7,1", "Apple SMC MacBook Core 2 Duo (mid 2010)", 184 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS_DISABLED, 185 ASMC_MB71_TEMPS, ASMC_MB71_TEMPNAMES, ASMC_MB71_TEMPDESCS 186 }, 187 188 { 189 "MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)", 190 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 191 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 192 }, 193 194 { 195 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)", 196 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 197 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 198 }, 199 200 { 201 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)", 202 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 203 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 204 }, 205 206 { 207 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)", 208 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 209 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 210 }, 211 212 { 213 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)", 214 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 215 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 216 }, 217 218 { 219 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)", 220 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 221 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 222 }, 223 224 { 225 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)", 226 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 227 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS 228 }, 229 230 { 231 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)", 232 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 233 ASMC_MBP51_TEMPS, ASMC_MBP51_TEMPNAMES, ASMC_MBP51_TEMPDESCS 234 }, 235 236 { 237 "MacBookPro5,5", "Apple SMC MacBook Pro Core 2 Duo (Mid 2009)", 238 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 239 ASMC_MBP55_TEMPS, ASMC_MBP55_TEMPNAMES, ASMC_MBP55_TEMPDESCS 240 }, 241 242 { 243 "MacBookPro6,2", "Apple SMC MacBook Pro (Mid 2010, 15-inch)", 244 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 245 ASMC_MBP62_TEMPS, ASMC_MBP62_TEMPNAMES, ASMC_MBP62_TEMPDESCS 246 }, 247 248 { 249 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)", 250 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 251 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS 252 }, 253 254 { 255 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)", 256 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 257 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS 258 }, 259 260 { 261 "MacBookPro9,1", "Apple SMC MacBook Pro (mid 2012, 15-inch)", 262 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 263 ASMC_MBP91_TEMPS, ASMC_MBP91_TEMPNAMES, ASMC_MBP91_TEMPDESCS 264 }, 265 266 { 267 "MacBookPro9,2", "Apple SMC MacBook Pro (mid 2012, 13-inch)", 268 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 269 ASMC_MBP92_TEMPS, ASMC_MBP92_TEMPNAMES, ASMC_MBP92_TEMPDESCS 270 }, 271 272 { 273 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 274 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 275 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS 276 }, 277 278 { 279 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 280 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 281 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS 282 }, 283 284 { 285 "MacBookPro11,4", "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch)", 286 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 287 ASMC_MBP114_TEMPS, ASMC_MBP114_TEMPNAMES, ASMC_MBP114_TEMPDESCS 288 }, 289 290 { 291 "MacBookPro11,5", 292 "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch, AMD GPU)", 293 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 294 ASMC_MBP115_TEMPS, ASMC_MBP115_TEMPNAMES, ASMC_MBP115_TEMPDESCS 295 }, 296 297 /* The Mac Mini has no SMS */ 298 { 299 "Macmini1,1", "Apple SMC Mac Mini", 300 ASMC_SMS_FUNCS_DISABLED, 301 ASMC_FAN_FUNCS, 302 ASMC_LIGHT_FUNCS_DISABLED, 303 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS 304 }, 305 306 /* The Mac Mini 2,1 has no SMS */ 307 { 308 "Macmini2,1", "Apple SMC Mac Mini 2,1", 309 ASMC_SMS_FUNCS_DISABLED, 310 ASMC_FAN_FUNCS, 311 ASMC_LIGHT_FUNCS_DISABLED, 312 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS 313 }, 314 315 /* The Mac Mini 3,1 has no SMS */ 316 { 317 "Macmini3,1", "Apple SMC Mac Mini 3,1", 318 ASMC_SMS_FUNCS_DISABLED, 319 ASMC_FAN_FUNCS, 320 ASMC_LIGHT_FUNCS_DISABLED, 321 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS 322 }, 323 324 /* The Mac Mini 4,1 (Mid-2010) has no SMS */ 325 { 326 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)", 327 ASMC_SMS_FUNCS_DISABLED, 328 ASMC_FAN_FUNCS, 329 ASMC_LIGHT_FUNCS_DISABLED, 330 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS 331 }, 332 333 /* The Mac Mini 5,1 has no SMS */ 334 /* - same sensors as Mac Mini 5,2 */ 335 { 336 "Macmini5,1", "Apple SMC Mac Mini 5,1", 337 ASMC_SMS_FUNCS_DISABLED, 338 ASMC_FAN_FUNCS2, 339 ASMC_LIGHT_FUNCS_DISABLED, 340 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 341 }, 342 343 /* The Mac Mini 5,2 has no SMS */ 344 { 345 "Macmini5,2", "Apple SMC Mac Mini 5,2", 346 ASMC_SMS_FUNCS_DISABLED, 347 ASMC_FAN_FUNCS2, 348 ASMC_LIGHT_FUNCS_DISABLED, 349 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 350 }, 351 352 /* The Mac Mini 5,3 has no SMS */ 353 /* - same sensors as Mac Mini 5,2 */ 354 { 355 "Macmini5,3", "Apple SMC Mac Mini 5,3", 356 ASMC_SMS_FUNCS_DISABLED, 357 ASMC_FAN_FUNCS2, 358 ASMC_LIGHT_FUNCS_DISABLED, 359 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 360 }, 361 362 /* The Mac Mini 6,1 has no SMS */ 363 { 364 "Macmini6,1", "Apple SMC Mac Mini 6,1", 365 ASMC_SMS_FUNCS_DISABLED, 366 ASMC_FAN_FUNCS2, 367 ASMC_LIGHT_FUNCS_DISABLED, 368 ASMC_MM61_TEMPS, ASMC_MM61_TEMPNAMES, ASMC_MM61_TEMPDESCS 369 }, 370 371 /* The Mac Mini 6,2 has no SMS */ 372 { 373 "Macmini6,2", "Apple SMC Mac Mini 6,2", 374 ASMC_SMS_FUNCS_DISABLED, 375 ASMC_FAN_FUNCS2, 376 ASMC_LIGHT_FUNCS_DISABLED, 377 ASMC_MM62_TEMPS, ASMC_MM62_TEMPNAMES, ASMC_MM62_TEMPDESCS 378 }, 379 380 /* The Mac Mini 7,1 has no SMS */ 381 { 382 "Macmini7,1", "Apple SMC Mac Mini 7,1", 383 ASMC_SMS_FUNCS_DISABLED, 384 ASMC_FAN_FUNCS2, 385 ASMC_LIGHT_FUNCS_DISABLED, 386 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS 387 }, 388 389 /* Idem for the Mac Pro "Quad Core" (original) */ 390 { 391 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)", 392 ASMC_SMS_FUNCS_DISABLED, 393 ASMC_FAN_FUNCS, 394 ASMC_LIGHT_FUNCS_DISABLED, 395 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS 396 }, 397 398 /* Idem for the Mac Pro (8-core) */ 399 { 400 "MacPro2", "Apple SMC Mac Pro (8-core)", 401 ASMC_SMS_FUNCS_DISABLED, 402 ASMC_FAN_FUNCS, 403 ASMC_LIGHT_FUNCS_DISABLED, 404 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 405 }, 406 407 /* Idem for the MacPro 2010*/ 408 { 409 "MacPro5,1", "Apple SMC MacPro (2010)", 410 ASMC_SMS_FUNCS_DISABLED, 411 ASMC_FAN_FUNCS, 412 ASMC_LIGHT_FUNCS_DISABLED, 413 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 414 }, 415 416 /* Idem for the Mac Pro 2013 (cylinder) */ 417 { 418 "MacPro6,1", "Apple SMC Mac Pro (2013)", 419 ASMC_SMS_FUNCS_DISABLED, 420 ASMC_FAN_FUNCS2, 421 ASMC_LIGHT_FUNCS_DISABLED, 422 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 423 }, 424 425 { 426 "MacBookAir1,1", "Apple SMC MacBook Air", 427 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 428 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 429 }, 430 431 { 432 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 433 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 434 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 435 }, 436 437 { 438 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 439 ASMC_SMS_FUNCS_DISABLED, 440 ASMC_FAN_FUNCS2, 441 ASMC_LIGHT_FUNCS, 442 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 443 }, 444 445 { 446 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 447 ASMC_SMS_FUNCS_DISABLED, 448 ASMC_FAN_FUNCS2, 449 ASMC_LIGHT_FUNCS, 450 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 451 }, 452 453 { 454 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 455 ASMC_SMS_FUNCS_DISABLED, 456 ASMC_FAN_FUNCS2, 457 ASMC_LIGHT_FUNCS, 458 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 459 }, 460 461 { 462 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 463 ASMC_SMS_FUNCS_DISABLED, 464 ASMC_FAN_FUNCS2, 465 ASMC_LIGHT_FUNCS, 466 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 467 }, 468 { 469 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 470 ASMC_SMS_FUNCS_DISABLED, 471 ASMC_FAN_FUNCS2, 472 ASMC_LIGHT_FUNCS_10BYTE, 473 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 474 }, 475 { 476 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)", 477 ASMC_SMS_FUNCS_DISABLED, 478 ASMC_FAN_FUNCS2, 479 ASMC_LIGHT_FUNCS_10BYTE, 480 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 481 }, 482 { 483 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 484 ASMC_SMS_FUNCS_DISABLED, 485 ASMC_FAN_FUNCS2, 486 ASMC_LIGHT_FUNCS, 487 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 488 }, 489 { 490 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)", 491 ASMC_SMS_FUNCS_DISABLED, 492 ASMC_FAN_FUNCS2, 493 ASMC_LIGHT_FUNCS, 494 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 495 }, 496 { NULL, NULL } 497 }; 498 499 #undef ASMC_SMS_FUNCS 500 #undef ASMC_SMS_FUNCS_DISABLED 501 #undef ASMC_FAN_FUNCS 502 #undef ASMC_FAN_FUNCS2 503 #undef ASMC_LIGHT_FUNCS 504 505 /* 506 * Driver methods. 507 */ 508 static device_method_t asmc_methods[] = { 509 DEVMETHOD(device_probe, asmc_probe), 510 DEVMETHOD(device_attach, asmc_attach), 511 DEVMETHOD(device_detach, asmc_detach), 512 DEVMETHOD(device_resume, asmc_resume), 513 { 0, 0 } 514 }; 515 516 static driver_t asmc_driver = { 517 "asmc", 518 asmc_methods, 519 sizeof(struct asmc_softc) 520 }; 521 522 /* 523 * Debugging 524 */ 525 #define _COMPONENT ACPI_OEM 526 ACPI_MODULE_NAME("ASMC") 527 #ifdef ASMC_DEBUG 528 #define ASMC_DPRINTF(str) device_printf(dev, str) 529 #else 530 #define ASMC_DPRINTF(str) 531 #endif 532 533 /* NB: can't be const */ 534 static char *asmc_ids[] = { "APP0001", NULL }; 535 536 static unsigned int light_control = 0; 537 538 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 539 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 540 541 static const struct asmc_model * 542 asmc_match(device_t dev) 543 { 544 int i; 545 char *model; 546 547 model = kern_getenv("smbios.system.product"); 548 if (model == NULL) 549 return (NULL); 550 551 for (i = 0; asmc_models[i].smc_model; i++) { 552 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 553 freeenv(model); 554 return (&asmc_models[i]); 555 } 556 } 557 freeenv(model); 558 559 return (NULL); 560 } 561 562 static int 563 asmc_probe(device_t dev) 564 { 565 const struct asmc_model *model; 566 int rv; 567 568 if (resource_disabled("asmc", 0)) 569 return (ENXIO); 570 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 571 if (rv > 0) 572 return (rv); 573 574 model = asmc_match(dev); 575 if (!model) { 576 device_printf(dev, "model not recognized\n"); 577 return (ENXIO); 578 } 579 device_set_desc(dev, model->smc_desc); 580 581 return (rv); 582 } 583 584 static int 585 asmc_attach(device_t dev) 586 { 587 int i, j; 588 int ret; 589 char name[2]; 590 struct asmc_softc *sc = device_get_softc(dev); 591 struct sysctl_ctx_list *sysctlctx; 592 struct sysctl_oid *sysctlnode; 593 const struct asmc_model *model; 594 595 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 596 &sc->sc_rid_port, RF_ACTIVE); 597 if (sc->sc_ioport == NULL) { 598 device_printf(dev, "unable to allocate IO port\n"); 599 return (ENOMEM); 600 } 601 602 sysctlctx = device_get_sysctl_ctx(dev); 603 sysctlnode = device_get_sysctl_tree(dev); 604 605 model = asmc_match(dev); 606 607 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 608 609 sc->sc_model = model; 610 asmc_init(dev); 611 612 /* 613 * dev.asmc.n.fan.* tree. 614 */ 615 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 616 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 617 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 618 619 for (i = 1; i <= sc->sc_nfan; i++) { 620 j = i - 1; 621 name[0] = '0' + j; 622 name[1] = 0; 623 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 624 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 625 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 626 "Fan Subtree"); 627 628 SYSCTL_ADD_PROC(sysctlctx, 629 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 630 OID_AUTO, "id", 631 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 632 dev, j, model->smc_fan_id, "I", 633 "Fan ID"); 634 635 SYSCTL_ADD_PROC(sysctlctx, 636 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 637 OID_AUTO, "speed", 638 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 639 dev, j, model->smc_fan_speed, "I", 640 "Fan speed in RPM"); 641 642 SYSCTL_ADD_PROC(sysctlctx, 643 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 644 OID_AUTO, "safespeed", 645 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 646 dev, j, model->smc_fan_safespeed, "I", 647 "Fan safe speed in RPM"); 648 649 SYSCTL_ADD_PROC(sysctlctx, 650 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 651 OID_AUTO, "minspeed", 652 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 653 dev, j, model->smc_fan_minspeed, "I", 654 "Fan minimum speed in RPM"); 655 656 SYSCTL_ADD_PROC(sysctlctx, 657 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 658 OID_AUTO, "maxspeed", 659 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 660 dev, j, model->smc_fan_maxspeed, "I", 661 "Fan maximum speed in RPM"); 662 663 SYSCTL_ADD_PROC(sysctlctx, 664 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 665 OID_AUTO, "targetspeed", 666 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 667 dev, j, model->smc_fan_targetspeed, "I", 668 "Fan target speed in RPM"); 669 670 SYSCTL_ADD_PROC(sysctlctx, 671 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 672 OID_AUTO, "manual", 673 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 674 dev, j, asmc_mb_sysctl_fanmanual, "I", 675 "Fan manual mode (0=auto, 1=manual)"); 676 } 677 678 /* 679 * dev.asmc.n.temp tree. 680 */ 681 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 682 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 683 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 684 685 for (i = 0; model->smc_temps[i]; i++) { 686 SYSCTL_ADD_PROC(sysctlctx, 687 SYSCTL_CHILDREN(sc->sc_temp_tree), 688 OID_AUTO, model->smc_tempnames[i], 689 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 690 dev, i, asmc_temp_sysctl, "I", 691 model->smc_tempdescs[i]); 692 } 693 694 /* 695 * dev.asmc.n.light 696 */ 697 if (model->smc_light_left) { 698 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 699 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 700 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 701 "Keyboard backlight sensors"); 702 703 SYSCTL_ADD_PROC(sysctlctx, 704 SYSCTL_CHILDREN(sc->sc_light_tree), 705 OID_AUTO, "left", 706 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 707 dev, 0, model->smc_light_left, "I", 708 "Keyboard backlight left sensor"); 709 710 SYSCTL_ADD_PROC(sysctlctx, 711 SYSCTL_CHILDREN(sc->sc_light_tree), 712 OID_AUTO, "right", 713 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 714 dev, 0, model->smc_light_right, "I", 715 "Keyboard backlight right sensor"); 716 717 SYSCTL_ADD_PROC(sysctlctx, 718 SYSCTL_CHILDREN(sc->sc_light_tree), 719 OID_AUTO, "control", 720 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 721 CTLFLAG_NEEDGIANT, dev, 0, 722 model->smc_light_control, "I", 723 "Keyboard backlight brightness control"); 724 } 725 726 if (model->smc_sms_x == NULL) 727 goto nosms; 728 729 /* 730 * dev.asmc.n.sms tree. 731 */ 732 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 733 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 734 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 735 736 SYSCTL_ADD_PROC(sysctlctx, 737 SYSCTL_CHILDREN(sc->sc_sms_tree), 738 OID_AUTO, "x", 739 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 740 dev, 0, model->smc_sms_x, "I", 741 "Sudden Motion Sensor X value"); 742 743 SYSCTL_ADD_PROC(sysctlctx, 744 SYSCTL_CHILDREN(sc->sc_sms_tree), 745 OID_AUTO, "y", 746 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 747 dev, 0, model->smc_sms_y, "I", 748 "Sudden Motion Sensor Y value"); 749 750 SYSCTL_ADD_PROC(sysctlctx, 751 SYSCTL_CHILDREN(sc->sc_sms_tree), 752 OID_AUTO, "z", 753 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 754 dev, 0, model->smc_sms_z, "I", 755 "Sudden Motion Sensor Z value"); 756 757 /* 758 * Need a taskqueue to send devctl_notify() events 759 * when the SMS interrupt us. 760 * 761 * PI_REALTIME is used due to the sensitivity of the 762 * interrupt. An interrupt from the SMS means that the 763 * disk heads should be turned off as quickly as possible. 764 * 765 * We only need to do this for the non INTR_FILTER case. 766 */ 767 sc->sc_sms_tq = NULL; 768 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 769 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 770 taskqueue_thread_enqueue, &sc->sc_sms_tq); 771 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 772 device_get_nameunit(dev)); 773 /* 774 * Allocate an IRQ for the SMS. 775 */ 776 sc->sc_rid_irq = 0; 777 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_rid_irq, 778 RF_ACTIVE); 779 if (sc->sc_irq == NULL) { 780 device_printf(dev, "unable to allocate IRQ resource\n"); 781 ret = ENXIO; 782 goto err2; 783 } 784 785 ret = bus_setup_intr(dev, sc->sc_irq, 786 INTR_TYPE_MISC | INTR_MPSAFE, 787 asmc_sms_intrfast, NULL, 788 dev, &sc->sc_cookie); 789 790 if (ret) { 791 device_printf(dev, "unable to setup SMS IRQ\n"); 792 goto err1; 793 } 794 nosms: 795 return (0); 796 err1: 797 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 798 err2: 799 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 800 sc->sc_ioport); 801 mtx_destroy(&sc->sc_mtx); 802 if (sc->sc_sms_tq) 803 taskqueue_free(sc->sc_sms_tq); 804 805 return (ret); 806 } 807 808 static int 809 asmc_detach(device_t dev) 810 { 811 struct asmc_softc *sc = device_get_softc(dev); 812 813 if (sc->sc_sms_tq) { 814 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 815 taskqueue_free(sc->sc_sms_tq); 816 } 817 if (sc->sc_cookie) 818 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 819 if (sc->sc_irq) 820 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 821 sc->sc_irq); 822 if (sc->sc_ioport) 823 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 824 sc->sc_ioport); 825 mtx_destroy(&sc->sc_mtx); 826 827 return (0); 828 } 829 830 static int 831 asmc_resume(device_t dev) 832 { 833 uint8_t buf[2]; 834 835 buf[0] = light_control; 836 buf[1] = 0x00; 837 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 838 839 return (0); 840 } 841 842 #ifdef ASMC_DEBUG 843 void 844 asmc_dumpall(device_t dev) 845 { 846 struct asmc_softc *sc = device_get_softc(dev); 847 int i; 848 849 if (sc->sc_nkeys == 0) { 850 device_printf(dev, "asmc_dumpall: key count not available\n"); 851 return; 852 } 853 854 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys); 855 for (i = 0; i < sc->sc_nkeys; i++) 856 asmc_key_dump(dev, i); 857 } 858 #endif 859 860 static int 861 asmc_init(device_t dev) 862 { 863 struct asmc_softc *sc = device_get_softc(dev); 864 int i, error = 1; 865 uint8_t buf[4]; 866 867 if (sc->sc_model->smc_sms_x == NULL) 868 goto nosms; 869 870 /* 871 * We are ready to receive interrupts from the SMS. 872 */ 873 buf[0] = 0x01; 874 ASMC_DPRINTF(("intok key\n")); 875 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 876 DELAY(50); 877 878 /* 879 * Initiate the polling intervals. 880 */ 881 buf[0] = 20; /* msecs */ 882 ASMC_DPRINTF(("low int key\n")); 883 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 884 DELAY(200); 885 886 buf[0] = 20; /* msecs */ 887 ASMC_DPRINTF(("high int key\n")); 888 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 889 DELAY(200); 890 891 buf[0] = 0x00; 892 buf[1] = 0x60; 893 ASMC_DPRINTF(("sms low key\n")); 894 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 895 DELAY(200); 896 897 buf[0] = 0x01; 898 buf[1] = 0xc0; 899 ASMC_DPRINTF(("sms high key\n")); 900 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 901 DELAY(200); 902 903 /* 904 * I'm not sure what this key does, but it seems to be 905 * required. 906 */ 907 buf[0] = 0x01; 908 ASMC_DPRINTF(("sms flag key\n")); 909 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 910 DELAY(100); 911 912 sc->sc_sms_intr_works = 0; 913 914 /* 915 * Retry SMS initialization 1000 times 916 * (takes approx. 2 seconds in worst case) 917 */ 918 for (i = 0; i < 1000; i++) { 919 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 920 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 921 error = 0; 922 sc->sc_sms_intr_works = 1; 923 goto out; 924 } 925 buf[0] = ASMC_SMS_INIT1; 926 buf[1] = ASMC_SMS_INIT2; 927 ASMC_DPRINTF(("sms key\n")); 928 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 929 DELAY(50); 930 } 931 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 932 933 out: 934 asmc_sms_calibrate(dev); 935 nosms: 936 sc->sc_nfan = asmc_fan_count(dev); 937 if (sc->sc_nfan > ASMC_MAXFANS) { 938 device_printf(dev, "more than %d fans were detected. Please " 939 "report this.\n", ASMC_MAXFANS); 940 sc->sc_nfan = ASMC_MAXFANS; 941 } 942 943 /* 944 * Read and cache the number of SMC keys (32 bit buffer) 945 */ 946 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) { 947 sc->sc_nkeys = be32dec(buf); 948 if (bootverbose) 949 device_printf(dev, "number of keys: %d\n", 950 sc->sc_nkeys); 951 } else { 952 sc->sc_nkeys = 0; 953 } 954 955 #ifdef ASMC_DEBUG 956 asmc_dumpall(dev); 957 #endif 958 959 return (error); 960 } 961 962 /* 963 * We need to make sure that the SMC acks the byte sent. 964 * Just wait up to (amount * 10) ms. 965 */ 966 static int 967 asmc_wait_ack(device_t dev, uint8_t val, int amount) 968 { 969 struct asmc_softc *sc = device_get_softc(dev); 970 u_int i; 971 972 val = val & ASMC_STATUS_MASK; 973 974 for (i = 0; i < amount; i++) { 975 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 976 return (0); 977 DELAY(10); 978 } 979 980 return (1); 981 } 982 983 /* 984 * We need to make sure that the SMC acks the byte sent. 985 * Just wait up to 100 ms. 986 */ 987 static int 988 asmc_wait(device_t dev, uint8_t val) 989 { 990 #ifdef ASMC_DEBUG 991 struct asmc_softc *sc; 992 #endif 993 994 if (asmc_wait_ack(dev, val, 1000) == 0) 995 return (0); 996 997 #ifdef ASMC_DEBUG 998 sc = device_get_softc(dev); 999 #endif 1000 val = val & ASMC_STATUS_MASK; 1001 1002 #ifdef ASMC_DEBUG 1003 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 1004 ASMC_CMDPORT_READ(sc)); 1005 #endif 1006 return (1); 1007 } 1008 1009 /* 1010 * Send the given command, retrying up to 10 times if 1011 * the acknowledgement fails. 1012 */ 1013 static int 1014 asmc_command(device_t dev, uint8_t command) 1015 { 1016 int i; 1017 struct asmc_softc *sc = device_get_softc(dev); 1018 1019 for (i = 0; i < 10; i++) { 1020 ASMC_CMDPORT_WRITE(sc, command); 1021 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 1022 return (0); 1023 } 1024 } 1025 1026 #ifdef ASMC_DEBUG 1027 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 1028 ASMC_CMDPORT_READ(sc)); 1029 #endif 1030 return (1); 1031 } 1032 1033 static int 1034 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1035 { 1036 int i, error = 1, try = 0; 1037 struct asmc_softc *sc = device_get_softc(dev); 1038 1039 mtx_lock_spin(&sc->sc_mtx); 1040 1041 begin: 1042 if (asmc_command(dev, ASMC_CMDREAD)) 1043 goto out; 1044 1045 for (i = 0; i < 4; i++) { 1046 ASMC_DATAPORT_WRITE(sc, key[i]); 1047 if (asmc_wait(dev, 0x04)) 1048 goto out; 1049 } 1050 1051 ASMC_DATAPORT_WRITE(sc, len); 1052 1053 for (i = 0; i < len; i++) { 1054 if (asmc_wait(dev, 0x05)) 1055 goto out; 1056 buf[i] = ASMC_DATAPORT_READ(sc); 1057 } 1058 1059 error = 0; 1060 out: 1061 if (error) { 1062 if (++try < 10) 1063 goto begin; 1064 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1065 __func__, key, try); 1066 } 1067 1068 mtx_unlock_spin(&sc->sc_mtx); 1069 1070 return (error); 1071 } 1072 1073 #ifdef ASMC_DEBUG 1074 static int 1075 asmc_key_dump(device_t dev, int number) 1076 { 1077 struct asmc_softc *sc = device_get_softc(dev); 1078 char key[5] = { 0 }; 1079 char type[7] = { 0 }; 1080 uint8_t index[4]; 1081 uint8_t v[32]; 1082 uint8_t maxlen; 1083 int i, error = 1, try = 0; 1084 1085 mtx_lock_spin(&sc->sc_mtx); 1086 1087 index[0] = (number >> 24) & 0xff; 1088 index[1] = (number >> 16) & 0xff; 1089 index[2] = (number >> 8) & 0xff; 1090 index[3] = (number) & 0xff; 1091 1092 begin: 1093 if (asmc_command(dev, 0x12)) 1094 goto out; 1095 1096 for (i = 0; i < 4; i++) { 1097 ASMC_DATAPORT_WRITE(sc, index[i]); 1098 if (asmc_wait(dev, 0x04)) 1099 goto out; 1100 } 1101 1102 ASMC_DATAPORT_WRITE(sc, 4); 1103 1104 for (i = 0; i < 4; i++) { 1105 if (asmc_wait(dev, 0x05)) 1106 goto out; 1107 key[i] = ASMC_DATAPORT_READ(sc); 1108 } 1109 1110 /* get type */ 1111 if (asmc_command(dev, 0x13)) 1112 goto out; 1113 1114 for (i = 0; i < 4; i++) { 1115 ASMC_DATAPORT_WRITE(sc, key[i]); 1116 if (asmc_wait(dev, 0x04)) 1117 goto out; 1118 } 1119 1120 ASMC_DATAPORT_WRITE(sc, 6); 1121 1122 for (i = 0; i < 6; i++) { 1123 if (asmc_wait(dev, 0x05)) 1124 goto out; 1125 type[i] = ASMC_DATAPORT_READ(sc); 1126 } 1127 1128 error = 0; 1129 out: 1130 if (error) { 1131 if (++try < 10) 1132 goto begin; 1133 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1134 __func__, key, try); 1135 mtx_unlock_spin(&sc->sc_mtx); 1136 } else { 1137 char buf[1024]; 1138 char buf2[8]; 1139 mtx_unlock_spin(&sc->sc_mtx); 1140 maxlen = type[0]; 1141 type[0] = ' '; 1142 type[5] = 0; 1143 if (maxlen > sizeof(v)) { 1144 device_printf(dev, 1145 "WARNING: cropping maxlen from %d to %zu\n", 1146 maxlen, sizeof(v)); 1147 maxlen = sizeof(v); 1148 } 1149 for (i = 0; i < sizeof(v); i++) { 1150 v[i] = 0; 1151 } 1152 asmc_key_read(dev, key, v, maxlen); 1153 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1154 "(len %d), data", number, key, type, maxlen); 1155 for (i = 0; i < maxlen; i++) { 1156 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1157 strlcat(buf, buf2, sizeof(buf)); 1158 } 1159 strlcat(buf, " \n", sizeof(buf)); 1160 device_printf(dev, "%s", buf); 1161 } 1162 1163 return (error); 1164 } 1165 #endif 1166 1167 static int 1168 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1169 { 1170 int i, error = -1, try = 0; 1171 struct asmc_softc *sc = device_get_softc(dev); 1172 1173 mtx_lock_spin(&sc->sc_mtx); 1174 1175 begin: 1176 ASMC_DPRINTF(("cmd port: cmd write\n")); 1177 if (asmc_command(dev, ASMC_CMDWRITE)) 1178 goto out; 1179 1180 ASMC_DPRINTF(("data port: key\n")); 1181 for (i = 0; i < 4; i++) { 1182 ASMC_DATAPORT_WRITE(sc, key[i]); 1183 if (asmc_wait(dev, 0x04)) 1184 goto out; 1185 } 1186 ASMC_DPRINTF(("data port: length\n")); 1187 ASMC_DATAPORT_WRITE(sc, len); 1188 1189 ASMC_DPRINTF(("data port: buffer\n")); 1190 for (i = 0; i < len; i++) { 1191 if (asmc_wait(dev, 0x04)) 1192 goto out; 1193 ASMC_DATAPORT_WRITE(sc, buf[i]); 1194 } 1195 1196 error = 0; 1197 out: 1198 if (error) { 1199 if (++try < 10) 1200 goto begin; 1201 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1202 __func__, key, try); 1203 } 1204 1205 mtx_unlock_spin(&sc->sc_mtx); 1206 1207 return (error); 1208 } 1209 1210 /* 1211 * Fan control functions. 1212 */ 1213 static int 1214 asmc_fan_count(device_t dev) 1215 { 1216 uint8_t buf[1]; 1217 1218 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1219 return (-1); 1220 1221 return (buf[0]); 1222 } 1223 1224 static int 1225 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1226 { 1227 int speed; 1228 uint8_t buf[2]; 1229 char fankey[5]; 1230 1231 snprintf(fankey, sizeof(fankey), key, fan); 1232 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1233 return (-1); 1234 speed = (buf[0] << 6) | (buf[1] >> 2); 1235 1236 return (speed); 1237 } 1238 1239 static char * 1240 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, 1241 uint8_t buflen) 1242 { 1243 char fankey[5]; 1244 char *desc; 1245 1246 snprintf(fankey, sizeof(fankey), key, fan); 1247 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1248 return (NULL); 1249 desc = buf + 4; 1250 1251 return (desc); 1252 } 1253 1254 static int 1255 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1256 { 1257 uint8_t buf[2]; 1258 char fankey[5]; 1259 1260 speed *= 4; 1261 1262 buf[0] = speed >> 8; 1263 buf[1] = speed; 1264 1265 snprintf(fankey, sizeof(fankey), key, fan); 1266 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1267 return (-1); 1268 1269 return (0); 1270 } 1271 1272 static int 1273 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1274 { 1275 device_t dev = (device_t)arg1; 1276 int fan = arg2; 1277 int error; 1278 int32_t v; 1279 1280 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1281 error = sysctl_handle_int(oidp, &v, 0, req); 1282 1283 return (error); 1284 } 1285 1286 static int 1287 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1288 { 1289 uint8_t buf[16]; 1290 device_t dev = (device_t)arg1; 1291 int fan = arg2; 1292 int error = true; 1293 char *desc; 1294 1295 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1296 1297 if (desc != NULL) 1298 error = sysctl_handle_string(oidp, desc, 0, req); 1299 1300 return (error); 1301 } 1302 1303 static int 1304 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1305 { 1306 device_t dev = (device_t)arg1; 1307 int fan = arg2; 1308 int error; 1309 int32_t v; 1310 1311 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1312 error = sysctl_handle_int(oidp, &v, 0, req); 1313 1314 return (error); 1315 } 1316 1317 static int 1318 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1319 { 1320 device_t dev = (device_t)arg1; 1321 int fan = arg2; 1322 int error; 1323 int32_t v; 1324 1325 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1326 error = sysctl_handle_int(oidp, &v, 0, req); 1327 1328 if (error == 0 && req->newptr != NULL) { 1329 unsigned int newspeed = v; 1330 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1331 } 1332 1333 return (error); 1334 } 1335 1336 static int 1337 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1338 { 1339 device_t dev = (device_t)arg1; 1340 int fan = arg2; 1341 int error; 1342 int32_t v; 1343 1344 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1345 error = sysctl_handle_int(oidp, &v, 0, req); 1346 1347 if (error == 0 && req->newptr != NULL) { 1348 unsigned int newspeed = v; 1349 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1350 } 1351 1352 return (error); 1353 } 1354 1355 static int 1356 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1357 { 1358 device_t dev = (device_t)arg1; 1359 int fan = arg2; 1360 int error; 1361 int32_t v; 1362 1363 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1364 error = sysctl_handle_int(oidp, &v, 0, req); 1365 1366 if (error == 0 && req->newptr != NULL) { 1367 unsigned int newspeed = v; 1368 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1369 } 1370 1371 return (error); 1372 } 1373 1374 static int 1375 asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS) 1376 { 1377 device_t dev = (device_t)arg1; 1378 int fan = arg2; 1379 int error; 1380 int32_t v; 1381 uint8_t buf[2]; 1382 uint16_t val; 1383 1384 /* Read current FS! bitmask (asmc_key_read locks internally) */ 1385 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1386 if (error != 0) 1387 return (error); 1388 1389 /* Extract manual bit for this fan (big-endian) */ 1390 val = (buf[0] << 8) | buf[1]; 1391 v = (val >> fan) & 0x01; 1392 1393 /* Let sysctl handle the value */ 1394 error = sysctl_handle_int(oidp, &v, 0, req); 1395 1396 if (error == 0 && req->newptr != NULL) { 1397 /* Validate input (0 = auto, 1 = manual) */ 1398 if (v != 0 && v != 1) 1399 return (EINVAL); 1400 /* Read-modify-write of FS! bitmask */ 1401 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, 1402 sizeof(buf)); 1403 if (error == 0) { 1404 val = (buf[0] << 8) | buf[1]; 1405 1406 /* Modify single bit */ 1407 if (v) 1408 val |= (1 << fan); /* Set to manual */ 1409 else 1410 val &= ~(1 << fan); /* Set to auto */ 1411 1412 /* Write back */ 1413 buf[0] = val >> 8; 1414 buf[1] = val & 0xff; 1415 error = asmc_key_write(dev, ASMC_KEY_FANMANUAL, buf, 1416 sizeof(buf)); 1417 } 1418 } 1419 1420 return (error); 1421 } 1422 1423 /* 1424 * Temperature functions. 1425 */ 1426 static int 1427 asmc_temp_getvalue(device_t dev, const char *key) 1428 { 1429 uint8_t buf[2]; 1430 1431 /* 1432 * Check for invalid temperatures. 1433 */ 1434 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1435 return (-1); 1436 1437 return (buf[0]); 1438 } 1439 1440 static int 1441 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1442 { 1443 device_t dev = (device_t)arg1; 1444 struct asmc_softc *sc = device_get_softc(dev); 1445 int error, val; 1446 1447 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1448 error = sysctl_handle_int(oidp, &val, 0, req); 1449 1450 return (error); 1451 } 1452 1453 /* 1454 * Sudden Motion Sensor functions. 1455 */ 1456 static int 1457 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1458 { 1459 uint8_t buf[2]; 1460 int error; 1461 1462 /* no need to do locking here as asmc_key_read() already does it */ 1463 switch (key[3]) { 1464 case 'X': 1465 case 'Y': 1466 case 'Z': 1467 error = asmc_key_read(dev, key, buf, sizeof buf); 1468 break; 1469 default: 1470 device_printf(dev, "%s called with invalid argument %s\n", 1471 __func__, key); 1472 error = 1; 1473 goto out; 1474 } 1475 *val = ((int16_t)buf[0] << 8) | buf[1]; 1476 out: 1477 return (error); 1478 } 1479 1480 static void 1481 asmc_sms_calibrate(device_t dev) 1482 { 1483 struct asmc_softc *sc = device_get_softc(dev); 1484 1485 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1486 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1487 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1488 } 1489 1490 static int 1491 asmc_sms_intrfast(void *arg) 1492 { 1493 uint8_t type; 1494 device_t dev = (device_t)arg; 1495 struct asmc_softc *sc = device_get_softc(dev); 1496 if (!sc->sc_sms_intr_works) 1497 return (FILTER_HANDLED); 1498 1499 mtx_lock_spin(&sc->sc_mtx); 1500 type = ASMC_INTPORT_READ(sc); 1501 mtx_unlock_spin(&sc->sc_mtx); 1502 1503 sc->sc_sms_intrtype = type; 1504 asmc_sms_printintr(dev, type); 1505 1506 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1507 return (FILTER_HANDLED); 1508 } 1509 1510 static void 1511 asmc_sms_printintr(device_t dev, uint8_t type) 1512 { 1513 struct asmc_softc *sc = device_get_softc(dev); 1514 1515 switch (type) { 1516 case ASMC_SMS_INTFF: 1517 device_printf(dev, "WARNING: possible free fall!\n"); 1518 break; 1519 case ASMC_SMS_INTHA: 1520 device_printf(dev, "WARNING: high acceleration detected!\n"); 1521 break; 1522 case ASMC_SMS_INTSH: 1523 device_printf(dev, "WARNING: possible shock!\n"); 1524 break; 1525 case ASMC_ALSL_INT2A: 1526 /* 1527 * This suppresses console and log messages for the ambient 1528 * light sensor for models known to generate this interrupt. 1529 */ 1530 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1531 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1532 break; 1533 /* FALLTHROUGH */ 1534 default: 1535 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1536 } 1537 } 1538 1539 static void 1540 asmc_sms_task(void *arg, int pending) 1541 { 1542 struct asmc_softc *sc = (struct asmc_softc *)arg; 1543 char notify[16]; 1544 int type; 1545 1546 switch (sc->sc_sms_intrtype) { 1547 case ASMC_SMS_INTFF: 1548 type = 2; 1549 break; 1550 case ASMC_SMS_INTHA: 1551 type = 1; 1552 break; 1553 case ASMC_SMS_INTSH: 1554 type = 0; 1555 break; 1556 default: 1557 type = 255; 1558 } 1559 1560 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1561 devctl_notify("ACPI", "asmc", "SMS", notify); 1562 } 1563 1564 static int 1565 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1566 { 1567 device_t dev = (device_t)arg1; 1568 int error; 1569 int16_t val; 1570 int32_t v; 1571 1572 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1573 v = (int32_t)val; 1574 error = sysctl_handle_int(oidp, &v, 0, req); 1575 1576 return (error); 1577 } 1578 1579 static int 1580 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1581 { 1582 device_t dev = (device_t)arg1; 1583 int error; 1584 int16_t val; 1585 int32_t v; 1586 1587 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1588 v = (int32_t)val; 1589 error = sysctl_handle_int(oidp, &v, 0, req); 1590 1591 return (error); 1592 } 1593 1594 static int 1595 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1596 { 1597 device_t dev = (device_t)arg1; 1598 int error; 1599 int16_t val; 1600 int32_t v; 1601 1602 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1603 v = (int32_t)val; 1604 error = sysctl_handle_int(oidp, &v, 0, req); 1605 1606 return (error); 1607 } 1608 1609 static int 1610 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1611 { 1612 device_t dev = (device_t)arg1; 1613 uint8_t buf[6]; 1614 int error; 1615 int32_t v; 1616 1617 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1618 v = buf[2]; 1619 error = sysctl_handle_int(oidp, &v, 0, req); 1620 1621 return (error); 1622 } 1623 1624 static int 1625 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1626 { 1627 device_t dev = (device_t)arg1; 1628 uint8_t buf[6]; 1629 int error; 1630 int32_t v; 1631 1632 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1633 v = buf[2]; 1634 error = sysctl_handle_int(oidp, &v, 0, req); 1635 1636 return (error); 1637 } 1638 1639 static int 1640 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1641 { 1642 device_t dev = (device_t)arg1; 1643 uint8_t buf[2]; 1644 int error; 1645 int v; 1646 1647 v = light_control; 1648 error = sysctl_handle_int(oidp, &v, 0, req); 1649 1650 if (error == 0 && req->newptr != NULL) { 1651 if (v < 0 || v > 255) 1652 return (EINVAL); 1653 light_control = v; 1654 buf[0] = light_control; 1655 buf[1] = 0x00; 1656 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1657 } 1658 return (error); 1659 } 1660 1661 static int 1662 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1663 { 1664 device_t dev = (device_t)arg1; 1665 uint8_t buf[10]; 1666 int error; 1667 uint32_t v; 1668 1669 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1670 1671 /* 1672 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1673 * 1674 * Extract it out manually here, then shift/clamp it. 1675 */ 1676 v = be32dec(&buf[6]); 1677 1678 /* 1679 * Shift out, clamp at 255; that way it looks like the 1680 * earlier SMC firmware version responses. 1681 */ 1682 v = v >> 8; 1683 if (v > 255) 1684 v = 255; 1685 1686 error = sysctl_handle_int(oidp, &v, 0, req); 1687 1688 return (error); 1689 } 1690