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 (Early 2008) */ 399 { 400 "MacPro3,1", "Apple SMC Mac Pro (Early 2008)", 401 NULL, NULL, NULL, 402 ASMC_FAN_FUNCS, 403 NULL, NULL, NULL, 404 ASMC_MP31_TEMPS, ASMC_MP31_TEMPNAMES, ASMC_MP31_TEMPDESCS 405 }, 406 407 /* Idem for the Mac Pro (8-core) */ 408 { 409 "MacPro2", "Apple SMC Mac Pro (8-core)", 410 ASMC_SMS_FUNCS_DISABLED, 411 ASMC_FAN_FUNCS, 412 ASMC_LIGHT_FUNCS_DISABLED, 413 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 414 }, 415 416 /* Idem for the MacPro 2010*/ 417 { 418 "MacPro5,1", "Apple SMC MacPro (2010)", 419 ASMC_SMS_FUNCS_DISABLED, 420 ASMC_FAN_FUNCS, 421 ASMC_LIGHT_FUNCS_DISABLED, 422 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 423 }, 424 425 /* Idem for the Mac Pro 2013 (cylinder) */ 426 { 427 "MacPro6,1", "Apple SMC Mac Pro (2013)", 428 ASMC_SMS_FUNCS_DISABLED, 429 ASMC_FAN_FUNCS2, 430 ASMC_LIGHT_FUNCS_DISABLED, 431 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 432 }, 433 434 { 435 "MacBookAir1,1", "Apple SMC MacBook Air", 436 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 437 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 438 }, 439 440 { 441 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 442 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 443 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 444 }, 445 446 { 447 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 448 ASMC_SMS_FUNCS_DISABLED, 449 ASMC_FAN_FUNCS2, 450 ASMC_LIGHT_FUNCS, 451 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 452 }, 453 454 { 455 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 456 ASMC_SMS_FUNCS_DISABLED, 457 ASMC_FAN_FUNCS2, 458 ASMC_LIGHT_FUNCS, 459 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 460 }, 461 462 { 463 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 464 ASMC_SMS_FUNCS_DISABLED, 465 ASMC_FAN_FUNCS2, 466 ASMC_LIGHT_FUNCS, 467 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 468 }, 469 470 { 471 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 472 ASMC_SMS_FUNCS_DISABLED, 473 ASMC_FAN_FUNCS2, 474 ASMC_LIGHT_FUNCS, 475 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 476 }, 477 { 478 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 479 ASMC_SMS_FUNCS_DISABLED, 480 ASMC_FAN_FUNCS2, 481 ASMC_LIGHT_FUNCS_10BYTE, 482 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 483 }, 484 { 485 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)", 486 ASMC_SMS_FUNCS_DISABLED, 487 ASMC_FAN_FUNCS2, 488 ASMC_LIGHT_FUNCS_10BYTE, 489 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 490 }, 491 { 492 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 493 ASMC_SMS_FUNCS_DISABLED, 494 ASMC_FAN_FUNCS2, 495 ASMC_LIGHT_FUNCS, 496 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 497 }, 498 { 499 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)", 500 ASMC_SMS_FUNCS_DISABLED, 501 ASMC_FAN_FUNCS2, 502 ASMC_LIGHT_FUNCS, 503 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 504 }, 505 { NULL, NULL } 506 }; 507 508 #undef ASMC_SMS_FUNCS 509 #undef ASMC_SMS_FUNCS_DISABLED 510 #undef ASMC_FAN_FUNCS 511 #undef ASMC_FAN_FUNCS2 512 #undef ASMC_LIGHT_FUNCS 513 514 /* 515 * Driver methods. 516 */ 517 static device_method_t asmc_methods[] = { 518 DEVMETHOD(device_probe, asmc_probe), 519 DEVMETHOD(device_attach, asmc_attach), 520 DEVMETHOD(device_detach, asmc_detach), 521 DEVMETHOD(device_resume, asmc_resume), 522 { 0, 0 } 523 }; 524 525 static driver_t asmc_driver = { 526 "asmc", 527 asmc_methods, 528 sizeof(struct asmc_softc) 529 }; 530 531 /* 532 * Debugging 533 */ 534 #define _COMPONENT ACPI_OEM 535 ACPI_MODULE_NAME("ASMC") 536 #ifdef ASMC_DEBUG 537 #define ASMC_DPRINTF(str) device_printf(dev, str) 538 #else 539 #define ASMC_DPRINTF(str) 540 #endif 541 542 /* NB: can't be const */ 543 static char *asmc_ids[] = { "APP0001", NULL }; 544 545 static unsigned int light_control = 0; 546 547 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 548 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 549 550 static const struct asmc_model * 551 asmc_match(device_t dev) 552 { 553 int i; 554 char *model; 555 556 model = kern_getenv("smbios.system.product"); 557 if (model == NULL) 558 return (NULL); 559 560 for (i = 0; asmc_models[i].smc_model; i++) { 561 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 562 freeenv(model); 563 return (&asmc_models[i]); 564 } 565 } 566 freeenv(model); 567 568 return (NULL); 569 } 570 571 static int 572 asmc_probe(device_t dev) 573 { 574 const struct asmc_model *model; 575 int rv; 576 577 if (resource_disabled("asmc", 0)) 578 return (ENXIO); 579 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 580 if (rv > 0) 581 return (rv); 582 583 model = asmc_match(dev); 584 if (!model) { 585 device_printf(dev, "model not recognized\n"); 586 return (ENXIO); 587 } 588 device_set_desc(dev, model->smc_desc); 589 590 return (rv); 591 } 592 593 static int 594 asmc_attach(device_t dev) 595 { 596 int i, j; 597 int ret; 598 char name[2]; 599 struct asmc_softc *sc = device_get_softc(dev); 600 struct sysctl_ctx_list *sysctlctx; 601 struct sysctl_oid *sysctlnode; 602 const struct asmc_model *model; 603 604 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 605 &sc->sc_rid_port, RF_ACTIVE); 606 if (sc->sc_ioport == NULL) { 607 device_printf(dev, "unable to allocate IO port\n"); 608 return (ENOMEM); 609 } 610 611 sysctlctx = device_get_sysctl_ctx(dev); 612 sysctlnode = device_get_sysctl_tree(dev); 613 614 model = asmc_match(dev); 615 616 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 617 618 sc->sc_model = model; 619 asmc_init(dev); 620 621 /* 622 * dev.asmc.n.fan.* tree. 623 */ 624 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 625 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 626 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 627 628 for (i = 1; i <= sc->sc_nfan; i++) { 629 j = i - 1; 630 name[0] = '0' + j; 631 name[1] = 0; 632 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 633 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 634 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 635 "Fan Subtree"); 636 637 SYSCTL_ADD_PROC(sysctlctx, 638 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 639 OID_AUTO, "id", 640 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, 641 dev, j, model->smc_fan_id, "I", 642 "Fan ID"); 643 644 SYSCTL_ADD_PROC(sysctlctx, 645 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 646 OID_AUTO, "speed", 647 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 648 dev, j, model->smc_fan_speed, "I", 649 "Fan speed in RPM"); 650 651 SYSCTL_ADD_PROC(sysctlctx, 652 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 653 OID_AUTO, "safespeed", 654 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 655 dev, j, model->smc_fan_safespeed, "I", 656 "Fan safe speed in RPM"); 657 658 SYSCTL_ADD_PROC(sysctlctx, 659 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 660 OID_AUTO, "minspeed", 661 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 662 dev, j, model->smc_fan_minspeed, "I", 663 "Fan minimum speed in RPM"); 664 665 SYSCTL_ADD_PROC(sysctlctx, 666 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 667 OID_AUTO, "maxspeed", 668 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 669 dev, j, model->smc_fan_maxspeed, "I", 670 "Fan maximum speed in RPM"); 671 672 SYSCTL_ADD_PROC(sysctlctx, 673 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 674 OID_AUTO, "targetspeed", 675 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 676 dev, j, model->smc_fan_targetspeed, "I", 677 "Fan target speed in RPM"); 678 679 SYSCTL_ADD_PROC(sysctlctx, 680 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 681 OID_AUTO, "manual", 682 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 683 dev, j, asmc_mb_sysctl_fanmanual, "I", 684 "Fan manual mode (0=auto, 1=manual)"); 685 } 686 687 /* 688 * dev.asmc.n.temp tree. 689 */ 690 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 691 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 692 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 693 694 for (i = 0; model->smc_temps[i]; i++) { 695 SYSCTL_ADD_PROC(sysctlctx, 696 SYSCTL_CHILDREN(sc->sc_temp_tree), 697 OID_AUTO, model->smc_tempnames[i], 698 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 699 dev, i, asmc_temp_sysctl, "I", 700 model->smc_tempdescs[i]); 701 } 702 703 /* 704 * dev.asmc.n.light 705 */ 706 if (model->smc_light_left) { 707 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 708 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 709 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 710 "Keyboard backlight sensors"); 711 712 SYSCTL_ADD_PROC(sysctlctx, 713 SYSCTL_CHILDREN(sc->sc_light_tree), 714 OID_AUTO, "left", 715 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 716 dev, 0, model->smc_light_left, "I", 717 "Keyboard backlight left sensor"); 718 719 SYSCTL_ADD_PROC(sysctlctx, 720 SYSCTL_CHILDREN(sc->sc_light_tree), 721 OID_AUTO, "right", 722 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 723 dev, 0, model->smc_light_right, "I", 724 "Keyboard backlight right sensor"); 725 726 SYSCTL_ADD_PROC(sysctlctx, 727 SYSCTL_CHILDREN(sc->sc_light_tree), 728 OID_AUTO, "control", 729 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 730 CTLFLAG_MPSAFE, dev, 0, 731 model->smc_light_control, "I", 732 "Keyboard backlight brightness control"); 733 } 734 735 if (model->smc_sms_x == NULL) 736 goto nosms; 737 738 /* 739 * dev.asmc.n.sms tree. 740 */ 741 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 742 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 743 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 744 745 SYSCTL_ADD_PROC(sysctlctx, 746 SYSCTL_CHILDREN(sc->sc_sms_tree), 747 OID_AUTO, "x", 748 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 749 dev, 0, model->smc_sms_x, "I", 750 "Sudden Motion Sensor X value"); 751 752 SYSCTL_ADD_PROC(sysctlctx, 753 SYSCTL_CHILDREN(sc->sc_sms_tree), 754 OID_AUTO, "y", 755 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 756 dev, 0, model->smc_sms_y, "I", 757 "Sudden Motion Sensor Y value"); 758 759 SYSCTL_ADD_PROC(sysctlctx, 760 SYSCTL_CHILDREN(sc->sc_sms_tree), 761 OID_AUTO, "z", 762 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, 763 dev, 0, model->smc_sms_z, "I", 764 "Sudden Motion Sensor Z value"); 765 766 /* 767 * Need a taskqueue to send devctl_notify() events 768 * when the SMS interrupt us. 769 * 770 * PI_REALTIME is used due to the sensitivity of the 771 * interrupt. An interrupt from the SMS means that the 772 * disk heads should be turned off as quickly as possible. 773 * 774 * We only need to do this for the non INTR_FILTER case. 775 */ 776 sc->sc_sms_tq = NULL; 777 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 778 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 779 taskqueue_thread_enqueue, &sc->sc_sms_tq); 780 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 781 device_get_nameunit(dev)); 782 /* 783 * Allocate an IRQ for the SMS. 784 */ 785 sc->sc_rid_irq = 0; 786 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_rid_irq, 787 RF_ACTIVE); 788 if (sc->sc_irq == NULL) { 789 device_printf(dev, "unable to allocate IRQ resource\n"); 790 ret = ENXIO; 791 goto err2; 792 } 793 794 ret = bus_setup_intr(dev, sc->sc_irq, 795 INTR_TYPE_MISC | INTR_MPSAFE, 796 asmc_sms_intrfast, NULL, 797 dev, &sc->sc_cookie); 798 799 if (ret) { 800 device_printf(dev, "unable to setup SMS IRQ\n"); 801 goto err1; 802 } 803 nosms: 804 return (0); 805 err1: 806 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 807 err2: 808 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 809 sc->sc_ioport); 810 mtx_destroy(&sc->sc_mtx); 811 if (sc->sc_sms_tq) 812 taskqueue_free(sc->sc_sms_tq); 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 } 826 if (sc->sc_cookie) 827 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 828 if (sc->sc_irq) 829 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 830 sc->sc_irq); 831 if (sc->sc_ioport) 832 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 833 sc->sc_ioport); 834 mtx_destroy(&sc->sc_mtx); 835 836 return (0); 837 } 838 839 static int 840 asmc_resume(device_t dev) 841 { 842 uint8_t buf[2]; 843 844 buf[0] = light_control; 845 buf[1] = 0x00; 846 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 847 848 return (0); 849 } 850 851 #ifdef ASMC_DEBUG 852 void 853 asmc_dumpall(device_t dev) 854 { 855 struct asmc_softc *sc = device_get_softc(dev); 856 int i; 857 858 if (sc->sc_nkeys == 0) { 859 device_printf(dev, "asmc_dumpall: key count not available\n"); 860 return; 861 } 862 863 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys); 864 for (i = 0; i < sc->sc_nkeys; i++) 865 asmc_key_dump(dev, i); 866 } 867 #endif 868 869 static int 870 asmc_init(device_t dev) 871 { 872 struct asmc_softc *sc = device_get_softc(dev); 873 int i, error = 1; 874 uint8_t buf[4]; 875 876 if (sc->sc_model->smc_sms_x == NULL) 877 goto nosms; 878 879 /* 880 * We are ready to receive interrupts from the SMS. 881 */ 882 buf[0] = 0x01; 883 ASMC_DPRINTF(("intok key\n")); 884 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 885 DELAY(50); 886 887 /* 888 * Initiate the polling intervals. 889 */ 890 buf[0] = 20; /* msecs */ 891 ASMC_DPRINTF(("low int key\n")); 892 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 893 DELAY(200); 894 895 buf[0] = 20; /* msecs */ 896 ASMC_DPRINTF(("high int key\n")); 897 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 898 DELAY(200); 899 900 buf[0] = 0x00; 901 buf[1] = 0x60; 902 ASMC_DPRINTF(("sms low key\n")); 903 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 904 DELAY(200); 905 906 buf[0] = 0x01; 907 buf[1] = 0xc0; 908 ASMC_DPRINTF(("sms high key\n")); 909 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 910 DELAY(200); 911 912 /* 913 * I'm not sure what this key does, but it seems to be 914 * required. 915 */ 916 buf[0] = 0x01; 917 ASMC_DPRINTF(("sms flag key\n")); 918 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 919 DELAY(100); 920 921 sc->sc_sms_intr_works = 0; 922 923 /* 924 * Retry SMS initialization 1000 times 925 * (takes approx. 2 seconds in worst case) 926 */ 927 for (i = 0; i < 1000; i++) { 928 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 929 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 930 error = 0; 931 sc->sc_sms_intr_works = 1; 932 goto out; 933 } 934 buf[0] = ASMC_SMS_INIT1; 935 buf[1] = ASMC_SMS_INIT2; 936 ASMC_DPRINTF(("sms key\n")); 937 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 938 DELAY(50); 939 } 940 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 941 942 out: 943 asmc_sms_calibrate(dev); 944 nosms: 945 sc->sc_nfan = asmc_fan_count(dev); 946 if (sc->sc_nfan > ASMC_MAXFANS) { 947 device_printf(dev, "more than %d fans were detected. Please " 948 "report this.\n", ASMC_MAXFANS); 949 sc->sc_nfan = ASMC_MAXFANS; 950 } 951 952 /* 953 * Read and cache the number of SMC keys (32 bit buffer) 954 */ 955 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) { 956 sc->sc_nkeys = be32dec(buf); 957 if (bootverbose) 958 device_printf(dev, "number of keys: %d\n", 959 sc->sc_nkeys); 960 } else { 961 sc->sc_nkeys = 0; 962 } 963 964 #ifdef ASMC_DEBUG 965 asmc_dumpall(dev); 966 #endif 967 968 return (error); 969 } 970 971 /* 972 * We need to make sure that the SMC acks the byte sent. 973 * Just wait up to (amount * 10) ms. 974 */ 975 static int 976 asmc_wait_ack(device_t dev, uint8_t val, int amount) 977 { 978 struct asmc_softc *sc = device_get_softc(dev); 979 u_int i; 980 981 val = val & ASMC_STATUS_MASK; 982 983 for (i = 0; i < amount; i++) { 984 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 985 return (0); 986 DELAY(10); 987 } 988 989 return (1); 990 } 991 992 /* 993 * We need to make sure that the SMC acks the byte sent. 994 * Just wait up to 100 ms. 995 */ 996 static int 997 asmc_wait(device_t dev, uint8_t val) 998 { 999 #ifdef ASMC_DEBUG 1000 struct asmc_softc *sc; 1001 #endif 1002 1003 if (asmc_wait_ack(dev, val, 1000) == 0) 1004 return (0); 1005 1006 #ifdef ASMC_DEBUG 1007 sc = device_get_softc(dev); 1008 #endif 1009 val = val & ASMC_STATUS_MASK; 1010 1011 #ifdef ASMC_DEBUG 1012 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 1013 ASMC_CMDPORT_READ(sc)); 1014 #endif 1015 return (1); 1016 } 1017 1018 /* 1019 * Send the given command, retrying up to 10 times if 1020 * the acknowledgement fails. 1021 */ 1022 static int 1023 asmc_command(device_t dev, uint8_t command) 1024 { 1025 int i; 1026 struct asmc_softc *sc = device_get_softc(dev); 1027 1028 for (i = 0; i < 10; i++) { 1029 ASMC_CMDPORT_WRITE(sc, command); 1030 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 1031 return (0); 1032 } 1033 } 1034 1035 #ifdef ASMC_DEBUG 1036 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 1037 ASMC_CMDPORT_READ(sc)); 1038 #endif 1039 return (1); 1040 } 1041 1042 static int 1043 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1044 { 1045 int i, error = 1, try = 0; 1046 struct asmc_softc *sc = device_get_softc(dev); 1047 1048 mtx_lock_spin(&sc->sc_mtx); 1049 1050 begin: 1051 if (asmc_command(dev, ASMC_CMDREAD)) 1052 goto out; 1053 1054 for (i = 0; i < 4; i++) { 1055 ASMC_DATAPORT_WRITE(sc, key[i]); 1056 if (asmc_wait(dev, 0x04)) 1057 goto out; 1058 } 1059 1060 ASMC_DATAPORT_WRITE(sc, len); 1061 1062 for (i = 0; i < len; i++) { 1063 if (asmc_wait(dev, 0x05)) 1064 goto out; 1065 buf[i] = ASMC_DATAPORT_READ(sc); 1066 } 1067 1068 error = 0; 1069 out: 1070 if (error) { 1071 if (++try < 10) 1072 goto begin; 1073 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1074 __func__, key, try); 1075 } 1076 1077 mtx_unlock_spin(&sc->sc_mtx); 1078 1079 return (error); 1080 } 1081 1082 #ifdef ASMC_DEBUG 1083 static int 1084 asmc_key_dump(device_t dev, int number) 1085 { 1086 struct asmc_softc *sc = device_get_softc(dev); 1087 char key[5] = { 0 }; 1088 char type[7] = { 0 }; 1089 uint8_t index[4]; 1090 uint8_t v[32]; 1091 uint8_t maxlen; 1092 int i, error = 1, try = 0; 1093 1094 mtx_lock_spin(&sc->sc_mtx); 1095 1096 index[0] = (number >> 24) & 0xff; 1097 index[1] = (number >> 16) & 0xff; 1098 index[2] = (number >> 8) & 0xff; 1099 index[3] = (number) & 0xff; 1100 1101 begin: 1102 if (asmc_command(dev, 0x12)) 1103 goto out; 1104 1105 for (i = 0; i < 4; i++) { 1106 ASMC_DATAPORT_WRITE(sc, index[i]); 1107 if (asmc_wait(dev, 0x04)) 1108 goto out; 1109 } 1110 1111 ASMC_DATAPORT_WRITE(sc, 4); 1112 1113 for (i = 0; i < 4; i++) { 1114 if (asmc_wait(dev, 0x05)) 1115 goto out; 1116 key[i] = ASMC_DATAPORT_READ(sc); 1117 } 1118 1119 /* get type */ 1120 if (asmc_command(dev, 0x13)) 1121 goto out; 1122 1123 for (i = 0; i < 4; i++) { 1124 ASMC_DATAPORT_WRITE(sc, key[i]); 1125 if (asmc_wait(dev, 0x04)) 1126 goto out; 1127 } 1128 1129 ASMC_DATAPORT_WRITE(sc, 6); 1130 1131 for (i = 0; i < 6; i++) { 1132 if (asmc_wait(dev, 0x05)) 1133 goto out; 1134 type[i] = ASMC_DATAPORT_READ(sc); 1135 } 1136 1137 error = 0; 1138 out: 1139 if (error) { 1140 if (++try < 10) 1141 goto begin; 1142 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1143 __func__, key, try); 1144 mtx_unlock_spin(&sc->sc_mtx); 1145 } else { 1146 char buf[1024]; 1147 char buf2[8]; 1148 mtx_unlock_spin(&sc->sc_mtx); 1149 maxlen = type[0]; 1150 type[0] = ' '; 1151 type[5] = 0; 1152 if (maxlen > sizeof(v)) { 1153 device_printf(dev, 1154 "WARNING: cropping maxlen from %d to %zu\n", 1155 maxlen, sizeof(v)); 1156 maxlen = sizeof(v); 1157 } 1158 for (i = 0; i < sizeof(v); i++) { 1159 v[i] = 0; 1160 } 1161 asmc_key_read(dev, key, v, maxlen); 1162 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1163 "(len %d), data", number, key, type, maxlen); 1164 for (i = 0; i < maxlen; i++) { 1165 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1166 strlcat(buf, buf2, sizeof(buf)); 1167 } 1168 strlcat(buf, " \n", sizeof(buf)); 1169 device_printf(dev, "%s", buf); 1170 } 1171 1172 return (error); 1173 } 1174 #endif 1175 1176 static int 1177 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1178 { 1179 int i, error = -1, try = 0; 1180 struct asmc_softc *sc = device_get_softc(dev); 1181 1182 mtx_lock_spin(&sc->sc_mtx); 1183 1184 begin: 1185 ASMC_DPRINTF(("cmd port: cmd write\n")); 1186 if (asmc_command(dev, ASMC_CMDWRITE)) 1187 goto out; 1188 1189 ASMC_DPRINTF(("data port: key\n")); 1190 for (i = 0; i < 4; i++) { 1191 ASMC_DATAPORT_WRITE(sc, key[i]); 1192 if (asmc_wait(dev, 0x04)) 1193 goto out; 1194 } 1195 ASMC_DPRINTF(("data port: length\n")); 1196 ASMC_DATAPORT_WRITE(sc, len); 1197 1198 ASMC_DPRINTF(("data port: buffer\n")); 1199 for (i = 0; i < len; i++) { 1200 if (asmc_wait(dev, 0x04)) 1201 goto out; 1202 ASMC_DATAPORT_WRITE(sc, buf[i]); 1203 } 1204 1205 error = 0; 1206 out: 1207 if (error) { 1208 if (++try < 10) 1209 goto begin; 1210 device_printf(dev, "%s for key %s failed %d times, giving up\n", 1211 __func__, key, try); 1212 } 1213 1214 mtx_unlock_spin(&sc->sc_mtx); 1215 1216 return (error); 1217 } 1218 1219 /* 1220 * Fan control functions. 1221 */ 1222 static int 1223 asmc_fan_count(device_t dev) 1224 { 1225 uint8_t buf[1]; 1226 1227 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1228 return (-1); 1229 1230 return (buf[0]); 1231 } 1232 1233 static int 1234 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1235 { 1236 int speed; 1237 uint8_t buf[2]; 1238 char fankey[5]; 1239 1240 snprintf(fankey, sizeof(fankey), key, fan); 1241 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1242 return (-1); 1243 speed = (buf[0] << 6) | (buf[1] >> 2); 1244 1245 return (speed); 1246 } 1247 1248 static char * 1249 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, 1250 uint8_t buflen) 1251 { 1252 char fankey[5]; 1253 char *desc; 1254 1255 snprintf(fankey, sizeof(fankey), key, fan); 1256 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1257 return (NULL); 1258 desc = buf + 4; 1259 1260 return (desc); 1261 } 1262 1263 static int 1264 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1265 { 1266 uint8_t buf[2]; 1267 char fankey[5]; 1268 1269 speed *= 4; 1270 1271 buf[0] = speed >> 8; 1272 buf[1] = speed; 1273 1274 snprintf(fankey, sizeof(fankey), key, fan); 1275 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1276 return (-1); 1277 1278 return (0); 1279 } 1280 1281 static int 1282 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1283 { 1284 device_t dev = (device_t)arg1; 1285 int fan = arg2; 1286 int error; 1287 int32_t v; 1288 1289 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1290 error = sysctl_handle_int(oidp, &v, 0, req); 1291 1292 return (error); 1293 } 1294 1295 static int 1296 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1297 { 1298 uint8_t buf[16]; 1299 device_t dev = (device_t)arg1; 1300 int fan = arg2; 1301 int error = true; 1302 char *desc; 1303 1304 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1305 1306 if (desc != NULL) 1307 error = sysctl_handle_string(oidp, desc, 0, req); 1308 1309 return (error); 1310 } 1311 1312 static int 1313 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1314 { 1315 device_t dev = (device_t)arg1; 1316 int fan = arg2; 1317 int error; 1318 int32_t v; 1319 1320 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1321 error = sysctl_handle_int(oidp, &v, 0, req); 1322 1323 return (error); 1324 } 1325 1326 static int 1327 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1328 { 1329 device_t dev = (device_t)arg1; 1330 int fan = arg2; 1331 int error; 1332 int32_t v; 1333 1334 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1335 error = sysctl_handle_int(oidp, &v, 0, req); 1336 1337 if (error == 0 && req->newptr != NULL) { 1338 unsigned int newspeed = v; 1339 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1340 } 1341 1342 return (error); 1343 } 1344 1345 static int 1346 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1347 { 1348 device_t dev = (device_t)arg1; 1349 int fan = arg2; 1350 int error; 1351 int32_t v; 1352 1353 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1354 error = sysctl_handle_int(oidp, &v, 0, req); 1355 1356 if (error == 0 && req->newptr != NULL) { 1357 unsigned int newspeed = v; 1358 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1359 } 1360 1361 return (error); 1362 } 1363 1364 static int 1365 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1366 { 1367 device_t dev = (device_t)arg1; 1368 int fan = arg2; 1369 int error; 1370 int32_t v; 1371 1372 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1373 error = sysctl_handle_int(oidp, &v, 0, req); 1374 1375 if (error == 0 && req->newptr != NULL) { 1376 unsigned int newspeed = v; 1377 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1378 } 1379 1380 return (error); 1381 } 1382 1383 static int 1384 asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS) 1385 { 1386 device_t dev = (device_t)arg1; 1387 int fan = arg2; 1388 int error; 1389 int32_t v; 1390 uint8_t buf[2]; 1391 uint16_t val; 1392 1393 /* Read current FS! bitmask (asmc_key_read locks internally) */ 1394 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1395 if (error != 0) 1396 return (error); 1397 1398 /* Extract manual bit for this fan (big-endian) */ 1399 val = (buf[0] << 8) | buf[1]; 1400 v = (val >> fan) & 0x01; 1401 1402 /* Let sysctl handle the value */ 1403 error = sysctl_handle_int(oidp, &v, 0, req); 1404 1405 if (error == 0 && req->newptr != NULL) { 1406 /* Validate input (0 = auto, 1 = manual) */ 1407 if (v != 0 && v != 1) 1408 return (EINVAL); 1409 /* Read-modify-write of FS! bitmask */ 1410 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, 1411 sizeof(buf)); 1412 if (error == 0) { 1413 val = (buf[0] << 8) | buf[1]; 1414 1415 /* Modify single bit */ 1416 if (v) 1417 val |= (1 << fan); /* Set to manual */ 1418 else 1419 val &= ~(1 << fan); /* Set to auto */ 1420 1421 /* Write back */ 1422 buf[0] = val >> 8; 1423 buf[1] = val & 0xff; 1424 error = asmc_key_write(dev, ASMC_KEY_FANMANUAL, buf, 1425 sizeof(buf)); 1426 } 1427 } 1428 1429 return (error); 1430 } 1431 1432 /* 1433 * Temperature functions. 1434 */ 1435 static int 1436 asmc_temp_getvalue(device_t dev, const char *key) 1437 { 1438 uint8_t buf[2]; 1439 1440 /* 1441 * Check for invalid temperatures. 1442 */ 1443 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1444 return (-1); 1445 1446 return (buf[0]); 1447 } 1448 1449 static int 1450 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1451 { 1452 device_t dev = (device_t)arg1; 1453 struct asmc_softc *sc = device_get_softc(dev); 1454 int error, val; 1455 1456 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1457 error = sysctl_handle_int(oidp, &val, 0, req); 1458 1459 return (error); 1460 } 1461 1462 /* 1463 * Sudden Motion Sensor functions. 1464 */ 1465 static int 1466 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1467 { 1468 uint8_t buf[2]; 1469 int error; 1470 1471 /* no need to do locking here as asmc_key_read() already does it */ 1472 switch (key[3]) { 1473 case 'X': 1474 case 'Y': 1475 case 'Z': 1476 error = asmc_key_read(dev, key, buf, sizeof buf); 1477 break; 1478 default: 1479 device_printf(dev, "%s called with invalid argument %s\n", 1480 __func__, key); 1481 error = 1; 1482 goto out; 1483 } 1484 *val = ((int16_t)buf[0] << 8) | buf[1]; 1485 out: 1486 return (error); 1487 } 1488 1489 static void 1490 asmc_sms_calibrate(device_t dev) 1491 { 1492 struct asmc_softc *sc = device_get_softc(dev); 1493 1494 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1495 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1496 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1497 } 1498 1499 static int 1500 asmc_sms_intrfast(void *arg) 1501 { 1502 uint8_t type; 1503 device_t dev = (device_t)arg; 1504 struct asmc_softc *sc = device_get_softc(dev); 1505 if (!sc->sc_sms_intr_works) 1506 return (FILTER_HANDLED); 1507 1508 mtx_lock_spin(&sc->sc_mtx); 1509 type = ASMC_INTPORT_READ(sc); 1510 mtx_unlock_spin(&sc->sc_mtx); 1511 1512 sc->sc_sms_intrtype = type; 1513 asmc_sms_printintr(dev, type); 1514 1515 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1516 return (FILTER_HANDLED); 1517 } 1518 1519 static void 1520 asmc_sms_printintr(device_t dev, uint8_t type) 1521 { 1522 struct asmc_softc *sc = device_get_softc(dev); 1523 1524 switch (type) { 1525 case ASMC_SMS_INTFF: 1526 device_printf(dev, "WARNING: possible free fall!\n"); 1527 break; 1528 case ASMC_SMS_INTHA: 1529 device_printf(dev, "WARNING: high acceleration detected!\n"); 1530 break; 1531 case ASMC_SMS_INTSH: 1532 device_printf(dev, "WARNING: possible shock!\n"); 1533 break; 1534 case ASMC_ALSL_INT2A: 1535 /* 1536 * This suppresses console and log messages for the ambient 1537 * light sensor for models known to generate this interrupt. 1538 */ 1539 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1540 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1541 break; 1542 /* FALLTHROUGH */ 1543 default: 1544 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1545 } 1546 } 1547 1548 static void 1549 asmc_sms_task(void *arg, int pending) 1550 { 1551 struct asmc_softc *sc = (struct asmc_softc *)arg; 1552 char notify[16]; 1553 int type; 1554 1555 switch (sc->sc_sms_intrtype) { 1556 case ASMC_SMS_INTFF: 1557 type = 2; 1558 break; 1559 case ASMC_SMS_INTHA: 1560 type = 1; 1561 break; 1562 case ASMC_SMS_INTSH: 1563 type = 0; 1564 break; 1565 default: 1566 type = 255; 1567 } 1568 1569 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1570 devctl_notify("ACPI", "asmc", "SMS", notify); 1571 } 1572 1573 static int 1574 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1575 { 1576 device_t dev = (device_t)arg1; 1577 int error; 1578 int16_t val; 1579 int32_t v; 1580 1581 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1582 v = (int32_t)val; 1583 error = sysctl_handle_int(oidp, &v, 0, req); 1584 1585 return (error); 1586 } 1587 1588 static int 1589 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1590 { 1591 device_t dev = (device_t)arg1; 1592 int error; 1593 int16_t val; 1594 int32_t v; 1595 1596 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1597 v = (int32_t)val; 1598 error = sysctl_handle_int(oidp, &v, 0, req); 1599 1600 return (error); 1601 } 1602 1603 static int 1604 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1605 { 1606 device_t dev = (device_t)arg1; 1607 int error; 1608 int16_t val; 1609 int32_t v; 1610 1611 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1612 v = (int32_t)val; 1613 error = sysctl_handle_int(oidp, &v, 0, req); 1614 1615 return (error); 1616 } 1617 1618 static int 1619 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1620 { 1621 device_t dev = (device_t)arg1; 1622 uint8_t buf[6]; 1623 int error; 1624 int32_t v; 1625 1626 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1627 v = buf[2]; 1628 error = sysctl_handle_int(oidp, &v, 0, req); 1629 1630 return (error); 1631 } 1632 1633 static int 1634 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1635 { 1636 device_t dev = (device_t)arg1; 1637 uint8_t buf[6]; 1638 int error; 1639 int32_t v; 1640 1641 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1642 v = buf[2]; 1643 error = sysctl_handle_int(oidp, &v, 0, req); 1644 1645 return (error); 1646 } 1647 1648 static int 1649 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1650 { 1651 device_t dev = (device_t)arg1; 1652 uint8_t buf[2]; 1653 int error; 1654 int v; 1655 1656 v = light_control; 1657 error = sysctl_handle_int(oidp, &v, 0, req); 1658 1659 if (error == 0 && req->newptr != NULL) { 1660 if (v < 0 || v > 255) 1661 return (EINVAL); 1662 light_control = v; 1663 buf[0] = light_control; 1664 buf[1] = 0x00; 1665 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1666 } 1667 return (error); 1668 } 1669 1670 static int 1671 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1672 { 1673 device_t dev = (device_t)arg1; 1674 uint8_t buf[10]; 1675 int error; 1676 uint32_t v; 1677 1678 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1679 1680 /* 1681 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1682 * 1683 * Extract it out manually here, then shift/clamp it. 1684 */ 1685 v = be32dec(&buf[6]); 1686 1687 /* 1688 * Shift out, clamp at 255; that way it looks like the 1689 * earlier SMC firmware version responses. 1690 */ 1691 v = v >> 8; 1692 if (v > 255) 1693 v = 255; 1694 1695 error = sysctl_handle_int(oidp, &v, 0, req); 1696 1697 return (error); 1698 } 1699