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 <sys/param.h> 38 #include <sys/bus.h> 39 #include <sys/conf.h> 40 #include <sys/endian.h> 41 #include <sys/kernel.h> 42 #include <sys/lock.h> 43 #include <sys/malloc.h> 44 #include <sys/module.h> 45 #include <sys/mutex.h> 46 #include <sys/sysctl.h> 47 #include <sys/systm.h> 48 #include <sys/taskqueue.h> 49 #include <sys/rman.h> 50 51 #include <machine/resource.h> 52 53 #include <contrib/dev/acpica/include/acpi.h> 54 55 #include <dev/acpica/acpivar.h> 56 #include <dev/asmc/asmcvar.h> 57 58 /* 59 * Device interface. 60 */ 61 static int asmc_probe(device_t dev); 62 static int asmc_attach(device_t dev); 63 static int asmc_detach(device_t dev); 64 static int asmc_resume(device_t dev); 65 66 /* 67 * SMC functions. 68 */ 69 static int asmc_init(device_t dev); 70 static int asmc_command(device_t dev, uint8_t command); 71 static int asmc_wait(device_t dev, uint8_t val); 72 static int asmc_wait_ack(device_t dev, uint8_t val, int amount); 73 static int asmc_key_write(device_t dev, const char *key, uint8_t *buf, 74 uint8_t len); 75 static int asmc_key_read(device_t dev, const char *key, uint8_t *buf, 76 uint8_t); 77 static int asmc_fan_count(device_t dev); 78 static int asmc_fan_getvalue(device_t dev, const char *key, int fan); 79 static int asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed); 80 static int asmc_temp_getvalue(device_t dev, const char *key); 81 static int asmc_sms_read(device_t, const char *key, int16_t *val); 82 static void asmc_sms_calibrate(device_t dev); 83 static int asmc_sms_intrfast(void *arg); 84 static void asmc_sms_printintr(device_t dev, uint8_t); 85 static void asmc_sms_task(void *arg, int pending); 86 #ifdef DEBUG 87 void asmc_dumpall(device_t); 88 static int asmc_key_dump(device_t, int); 89 #endif 90 91 /* 92 * Model functions. 93 */ 94 static int asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS); 95 static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS); 96 static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS); 97 static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS); 98 static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS); 99 static int asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS); 100 static int asmc_temp_sysctl(SYSCTL_HANDLER_ARGS); 101 static int asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS); 102 static int asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS); 103 static int asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS); 104 static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS); 105 static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS); 106 static int asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS); 107 static int asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS); 108 109 struct asmc_model { 110 const char *smc_model; /* smbios.system.product env var. */ 111 const char *smc_desc; /* driver description */ 112 113 /* Helper functions */ 114 int (*smc_sms_x)(SYSCTL_HANDLER_ARGS); 115 int (*smc_sms_y)(SYSCTL_HANDLER_ARGS); 116 int (*smc_sms_z)(SYSCTL_HANDLER_ARGS); 117 int (*smc_fan_id)(SYSCTL_HANDLER_ARGS); 118 int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS); 119 int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS); 120 int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS); 121 int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS); 122 int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS); 123 int (*smc_light_left)(SYSCTL_HANDLER_ARGS); 124 int (*smc_light_right)(SYSCTL_HANDLER_ARGS); 125 int (*smc_light_control)(SYSCTL_HANDLER_ARGS); 126 127 const char *smc_temps[ASMC_TEMP_MAX]; 128 const char *smc_tempnames[ASMC_TEMP_MAX]; 129 const char *smc_tempdescs[ASMC_TEMP_MAX]; 130 }; 131 132 static const struct asmc_model *asmc_match(device_t dev); 133 134 #define ASMC_SMS_FUNCS asmc_mb_sysctl_sms_x, asmc_mb_sysctl_sms_y, \ 135 asmc_mb_sysctl_sms_z 136 137 #define ASMC_SMS_FUNCS_DISABLED NULL,NULL,NULL 138 139 #define ASMC_FAN_FUNCS asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, asmc_mb_sysctl_fansafespeed, \ 140 asmc_mb_sysctl_fanminspeed, \ 141 asmc_mb_sysctl_fanmaxspeed, \ 142 asmc_mb_sysctl_fantargetspeed 143 144 #define ASMC_FAN_FUNCS2 asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, NULL, \ 145 asmc_mb_sysctl_fanminspeed, \ 146 asmc_mb_sysctl_fanmaxspeed, \ 147 asmc_mb_sysctl_fantargetspeed 148 149 #define ASMC_LIGHT_FUNCS asmc_mbp_sysctl_light_left, \ 150 asmc_mbp_sysctl_light_right, \ 151 asmc_mbp_sysctl_light_control 152 153 #define ASMC_LIGHT_FUNCS_10BYTE \ 154 asmc_mbp_sysctl_light_left_10byte, \ 155 NULL, \ 156 asmc_mbp_sysctl_light_control 157 158 #define ASMC_LIGHT_FUNCS_DISABLED NULL, NULL, NULL 159 160 static const struct asmc_model asmc_models[] = { 161 { 162 "MacBook1,1", "Apple SMC MacBook Core Duo", 163 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 164 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 165 }, 166 167 { 168 "MacBook2,1", "Apple SMC MacBook Core 2 Duo", 169 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 170 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 171 }, 172 173 { 174 "MacBook3,1", "Apple SMC MacBook Core 2 Duo", 175 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 176 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS 177 }, 178 179 { 180 "MacBook7,1", "Apple SMC MacBook Core 2 Duo (mid 2010)", 181 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS_DISABLED, 182 ASMC_MB71_TEMPS, ASMC_MB71_TEMPNAMES, ASMC_MB71_TEMPDESCS 183 }, 184 185 { 186 "MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)", 187 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 188 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 189 }, 190 191 { 192 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)", 193 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 194 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 195 }, 196 197 { 198 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)", 199 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 200 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 201 }, 202 203 { 204 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 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 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)", 211 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 212 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 213 }, 214 215 { 216 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)", 217 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 218 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 219 }, 220 221 { 222 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)", 223 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 224 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS 225 }, 226 227 { 228 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)", 229 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 230 ASMC_MBP51_TEMPS, ASMC_MBP51_TEMPNAMES, ASMC_MBP51_TEMPDESCS 231 }, 232 233 { 234 "MacBookPro5,5", "Apple SMC MacBook Pro Core 2 Duo (Mid 2009)", 235 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 236 ASMC_MBP55_TEMPS, ASMC_MBP55_TEMPNAMES, ASMC_MBP55_TEMPDESCS 237 }, 238 239 { 240 "MacBookPro6,2", "Apple SMC MacBook Pro (Mid 2010, 15-inch)", 241 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 242 ASMC_MBP62_TEMPS, ASMC_MBP62_TEMPNAMES, ASMC_MBP62_TEMPDESCS 243 }, 244 245 { 246 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)", 247 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 248 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS 249 }, 250 251 { 252 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)", 253 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 254 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS 255 }, 256 257 { 258 "MacBookPro9,1", "Apple SMC MacBook Pro (mid 2012, 15-inch)", 259 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 260 ASMC_MBP91_TEMPS, ASMC_MBP91_TEMPNAMES, ASMC_MBP91_TEMPDESCS 261 }, 262 263 { 264 "MacBookPro9,2", "Apple SMC MacBook Pro (mid 2012, 13-inch)", 265 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 266 ASMC_MBP92_TEMPS, ASMC_MBP92_TEMPNAMES, ASMC_MBP92_TEMPDESCS 267 }, 268 269 { 270 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 271 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 272 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS 273 }, 274 275 { 276 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 277 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 278 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS 279 }, 280 281 { 282 "MacBookPro11,4", "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch)", 283 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 284 ASMC_MBP114_TEMPS, ASMC_MBP114_TEMPNAMES, ASMC_MBP114_TEMPDESCS 285 }, 286 287 /* The Mac Mini has no SMS */ 288 { 289 "Macmini1,1", "Apple SMC Mac Mini", 290 NULL, NULL, NULL, 291 ASMC_FAN_FUNCS, 292 NULL, NULL, NULL, 293 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS 294 }, 295 296 /* The Mac Mini 2,1 has no SMS */ 297 { 298 "Macmini2,1", "Apple SMC Mac Mini 2,1", 299 ASMC_SMS_FUNCS_DISABLED, 300 ASMC_FAN_FUNCS, 301 ASMC_LIGHT_FUNCS_DISABLED, 302 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS 303 }, 304 305 /* The Mac Mini 3,1 has no SMS */ 306 { 307 "Macmini3,1", "Apple SMC Mac Mini 3,1", 308 NULL, NULL, NULL, 309 ASMC_FAN_FUNCS, 310 NULL, NULL, NULL, 311 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS 312 }, 313 314 /* The Mac Mini 4,1 (Mid-2010) has no SMS */ 315 { 316 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)", 317 ASMC_SMS_FUNCS_DISABLED, 318 ASMC_FAN_FUNCS, 319 ASMC_LIGHT_FUNCS_DISABLED, 320 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS 321 }, 322 323 /* The Mac Mini 5,1 has no SMS */ 324 /* - same sensors as Mac Mini 5,2 */ 325 { 326 "Macmini5,1", "Apple SMC Mac Mini 5,1", 327 NULL, NULL, NULL, 328 ASMC_FAN_FUNCS2, 329 NULL, NULL, NULL, 330 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 331 }, 332 333 /* The Mac Mini 5,2 has no SMS */ 334 { 335 "Macmini5,2", "Apple SMC Mac Mini 5,2", 336 NULL, NULL, NULL, 337 ASMC_FAN_FUNCS2, 338 NULL, NULL, NULL, 339 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 340 }, 341 342 /* The Mac Mini 5,3 has no SMS */ 343 /* - same sensors as Mac Mini 5,2 */ 344 { 345 "Macmini5,3", "Apple SMC Mac Mini 5,3", 346 NULL, NULL, NULL, 347 ASMC_FAN_FUNCS2, 348 NULL, NULL, NULL, 349 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 350 }, 351 352 /* The Mac Mini 6,1 has no SMS */ 353 { 354 "Macmini6,1", "Apple SMC Mac Mini 6,1", 355 NULL, NULL, NULL, 356 ASMC_FAN_FUNCS2, 357 NULL, NULL, NULL, 358 ASMC_MM61_TEMPS, ASMC_MM61_TEMPNAMES, ASMC_MM61_TEMPDESCS 359 }, 360 361 /* The Mac Mini 6,2 has no SMS */ 362 { 363 "Macmini6,2", "Apple SMC Mac Mini 6,2", 364 NULL, NULL, NULL, 365 ASMC_FAN_FUNCS2, 366 NULL, NULL, NULL, 367 ASMC_MM62_TEMPS, ASMC_MM62_TEMPNAMES, ASMC_MM62_TEMPDESCS 368 }, 369 370 /* The Mac Mini 7,1 has no SMS */ 371 { 372 "Macmini7,1", "Apple SMC Mac Mini 7,1", 373 NULL, NULL, NULL, 374 ASMC_FAN_FUNCS2, 375 NULL, NULL, NULL, 376 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS 377 }, 378 379 /* Idem for the Mac Pro "Quad Core" (original) */ 380 { 381 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)", 382 NULL, NULL, NULL, 383 ASMC_FAN_FUNCS, 384 NULL, NULL, NULL, 385 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS 386 }, 387 388 /* Idem for the Mac Pro (8-core) */ 389 { 390 "MacPro2", "Apple SMC Mac Pro (8-core)", 391 NULL, NULL, NULL, 392 ASMC_FAN_FUNCS, 393 NULL, NULL, NULL, 394 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 395 }, 396 397 /* Idem for the MacPro 2010*/ 398 { 399 "MacPro5,1", "Apple SMC MacPro (2010)", 400 NULL, NULL, NULL, 401 ASMC_FAN_FUNCS, 402 NULL, NULL, NULL, 403 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 404 }, 405 406 /* Idem for the Mac Pro 2013 (cylinder) */ 407 { 408 "MacPro6,1", "Apple SMC Mac Pro (2013)", 409 ASMC_SMS_FUNCS_DISABLED, 410 ASMC_FAN_FUNCS2, 411 ASMC_LIGHT_FUNCS_DISABLED, 412 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 413 }, 414 415 { 416 "MacBookAir1,1", "Apple SMC MacBook Air", 417 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 418 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 419 }, 420 421 { 422 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 423 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 424 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 425 }, 426 427 { 428 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 429 ASMC_SMS_FUNCS_DISABLED, 430 ASMC_FAN_FUNCS2, 431 ASMC_LIGHT_FUNCS, 432 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 433 }, 434 435 { 436 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 437 ASMC_SMS_FUNCS_DISABLED, 438 ASMC_FAN_FUNCS2, 439 ASMC_LIGHT_FUNCS, 440 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 441 }, 442 443 { 444 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 445 ASMC_SMS_FUNCS_DISABLED, 446 ASMC_FAN_FUNCS2, 447 ASMC_LIGHT_FUNCS, 448 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 449 }, 450 451 { 452 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 453 ASMC_SMS_FUNCS_DISABLED, 454 ASMC_FAN_FUNCS2, 455 ASMC_LIGHT_FUNCS, 456 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 457 }, 458 { 459 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 460 ASMC_SMS_FUNCS_DISABLED, 461 ASMC_FAN_FUNCS2, 462 ASMC_LIGHT_FUNCS_10BYTE, 463 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 464 }, 465 { 466 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)", 467 ASMC_SMS_FUNCS_DISABLED, 468 ASMC_FAN_FUNCS2, 469 ASMC_LIGHT_FUNCS_10BYTE, 470 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 471 }, 472 { 473 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 474 ASMC_SMS_FUNCS_DISABLED, 475 ASMC_FAN_FUNCS2, 476 ASMC_LIGHT_FUNCS, 477 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 478 }, 479 { 480 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)", 481 ASMC_SMS_FUNCS_DISABLED, 482 ASMC_FAN_FUNCS2, 483 ASMC_LIGHT_FUNCS, 484 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 485 }, 486 { NULL, NULL } 487 }; 488 489 #undef ASMC_SMS_FUNCS 490 #undef ASMC_SMS_FUNCS_DISABLED 491 #undef ASMC_FAN_FUNCS 492 #undef ASMC_FAN_FUNCS2 493 #undef ASMC_LIGHT_FUNCS 494 495 /* 496 * Driver methods. 497 */ 498 static device_method_t asmc_methods[] = { 499 DEVMETHOD(device_probe, asmc_probe), 500 DEVMETHOD(device_attach, asmc_attach), 501 DEVMETHOD(device_detach, asmc_detach), 502 DEVMETHOD(device_resume, asmc_resume), 503 { 0, 0 } 504 }; 505 506 static driver_t asmc_driver = { 507 "asmc", 508 asmc_methods, 509 sizeof(struct asmc_softc) 510 }; 511 512 /* 513 * Debugging 514 */ 515 #define _COMPONENT ACPI_OEM 516 ACPI_MODULE_NAME("ASMC") 517 #ifdef DEBUG 518 #define ASMC_DPRINTF(str) device_printf(dev, str) 519 #else 520 #define ASMC_DPRINTF(str) 521 #endif 522 523 /* NB: can't be const */ 524 static char *asmc_ids[] = { "APP0001", NULL }; 525 526 static unsigned int light_control = 0; 527 528 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 529 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 530 531 static const struct asmc_model * 532 asmc_match(device_t dev) 533 { 534 int i; 535 char *model; 536 537 model = kern_getenv("smbios.system.product"); 538 if (model == NULL) 539 return (NULL); 540 541 for (i = 0; asmc_models[i].smc_model; i++) { 542 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 543 freeenv(model); 544 return (&asmc_models[i]); 545 } 546 } 547 freeenv(model); 548 549 return (NULL); 550 } 551 552 static int 553 asmc_probe(device_t dev) 554 { 555 const struct asmc_model *model; 556 int rv; 557 558 if (resource_disabled("asmc", 0)) 559 return (ENXIO); 560 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 561 if (rv > 0) 562 return (rv); 563 564 model = asmc_match(dev); 565 if (!model) { 566 device_printf(dev, "model not recognized\n"); 567 return (ENXIO); 568 } 569 device_set_desc(dev, model->smc_desc); 570 571 return (rv); 572 } 573 574 static int 575 asmc_attach(device_t dev) 576 { 577 int i, j; 578 int ret; 579 char name[2]; 580 struct asmc_softc *sc = device_get_softc(dev); 581 struct sysctl_ctx_list *sysctlctx; 582 struct sysctl_oid *sysctlnode; 583 const struct asmc_model *model; 584 585 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 586 &sc->sc_rid_port, RF_ACTIVE); 587 if (sc->sc_ioport == NULL) { 588 device_printf(dev, "unable to allocate IO port\n"); 589 return (ENOMEM); 590 } 591 592 sysctlctx = device_get_sysctl_ctx(dev); 593 sysctlnode = device_get_sysctl_tree(dev); 594 595 model = asmc_match(dev); 596 597 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 598 599 sc->sc_model = model; 600 asmc_init(dev); 601 602 /* 603 * dev.asmc.n.fan.* tree. 604 */ 605 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 606 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 607 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 608 609 for (i = 1; i <= sc->sc_nfan; i++) { 610 j = i - 1; 611 name[0] = '0' + j; 612 name[1] = 0; 613 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 614 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 615 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 616 "Fan Subtree"); 617 618 SYSCTL_ADD_PROC(sysctlctx, 619 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 620 OID_AUTO, "id", 621 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 622 dev, j, model->smc_fan_id, "I", 623 "Fan ID"); 624 625 SYSCTL_ADD_PROC(sysctlctx, 626 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 627 OID_AUTO, "speed", 628 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 629 dev, j, model->smc_fan_speed, "I", 630 "Fan speed in RPM"); 631 632 SYSCTL_ADD_PROC(sysctlctx, 633 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 634 OID_AUTO, "safespeed", 635 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 636 dev, j, model->smc_fan_safespeed, "I", 637 "Fan safe speed in RPM"); 638 639 SYSCTL_ADD_PROC(sysctlctx, 640 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 641 OID_AUTO, "minspeed", 642 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 643 dev, j, model->smc_fan_minspeed, "I", 644 "Fan minimum speed in RPM"); 645 646 SYSCTL_ADD_PROC(sysctlctx, 647 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 648 OID_AUTO, "maxspeed", 649 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 650 dev, j, model->smc_fan_maxspeed, "I", 651 "Fan maximum speed in RPM"); 652 653 SYSCTL_ADD_PROC(sysctlctx, 654 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 655 OID_AUTO, "targetspeed", 656 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 657 dev, j, model->smc_fan_targetspeed, "I", 658 "Fan target speed in RPM"); 659 } 660 661 /* 662 * dev.asmc.n.temp tree. 663 */ 664 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 665 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 666 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 667 668 for (i = 0; model->smc_temps[i]; i++) { 669 SYSCTL_ADD_PROC(sysctlctx, 670 SYSCTL_CHILDREN(sc->sc_temp_tree), 671 OID_AUTO, model->smc_tempnames[i], 672 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 673 dev, i, asmc_temp_sysctl, "I", 674 model->smc_tempdescs[i]); 675 } 676 677 /* 678 * dev.asmc.n.light 679 */ 680 if (model->smc_light_left) { 681 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 682 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 683 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 684 "Keyboard backlight sensors"); 685 686 SYSCTL_ADD_PROC(sysctlctx, 687 SYSCTL_CHILDREN(sc->sc_light_tree), 688 OID_AUTO, "left", 689 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 690 dev, 0, model->smc_light_left, "I", 691 "Keyboard backlight left sensor"); 692 693 SYSCTL_ADD_PROC(sysctlctx, 694 SYSCTL_CHILDREN(sc->sc_light_tree), 695 OID_AUTO, "right", 696 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 697 dev, 0, model->smc_light_right, "I", 698 "Keyboard backlight right sensor"); 699 700 SYSCTL_ADD_PROC(sysctlctx, 701 SYSCTL_CHILDREN(sc->sc_light_tree), 702 OID_AUTO, "control", 703 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 704 CTLFLAG_NEEDGIANT, dev, 0, 705 model->smc_light_control, "I", 706 "Keyboard backlight brightness control"); 707 } 708 709 if (model->smc_sms_x == NULL) 710 goto nosms; 711 712 /* 713 * dev.asmc.n.sms tree. 714 */ 715 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 716 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 717 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 718 719 SYSCTL_ADD_PROC(sysctlctx, 720 SYSCTL_CHILDREN(sc->sc_sms_tree), 721 OID_AUTO, "x", 722 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 723 dev, 0, model->smc_sms_x, "I", 724 "Sudden Motion Sensor X value"); 725 726 SYSCTL_ADD_PROC(sysctlctx, 727 SYSCTL_CHILDREN(sc->sc_sms_tree), 728 OID_AUTO, "y", 729 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 730 dev, 0, model->smc_sms_y, "I", 731 "Sudden Motion Sensor Y value"); 732 733 SYSCTL_ADD_PROC(sysctlctx, 734 SYSCTL_CHILDREN(sc->sc_sms_tree), 735 OID_AUTO, "z", 736 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 737 dev, 0, model->smc_sms_z, "I", 738 "Sudden Motion Sensor Z value"); 739 740 /* 741 * Need a taskqueue to send devctl_notify() events 742 * when the SMS interrupt us. 743 * 744 * PI_REALTIME is used due to the sensitivity of the 745 * interrupt. An interrupt from the SMS means that the 746 * disk heads should be turned off as quickly as possible. 747 * 748 * We only need to do this for the non INTR_FILTER case. 749 */ 750 sc->sc_sms_tq = NULL; 751 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 752 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 753 taskqueue_thread_enqueue, &sc->sc_sms_tq); 754 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 755 device_get_nameunit(dev)); 756 /* 757 * Allocate an IRQ for the SMS. 758 */ 759 sc->sc_rid_irq = 0; 760 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 761 &sc->sc_rid_irq, RF_ACTIVE); 762 if (sc->sc_irq == NULL) { 763 device_printf(dev, "unable to allocate IRQ resource\n"); 764 ret = ENXIO; 765 goto err2; 766 } 767 768 ret = bus_setup_intr(dev, sc->sc_irq, 769 INTR_TYPE_MISC | INTR_MPSAFE, 770 asmc_sms_intrfast, NULL, 771 dev, &sc->sc_cookie); 772 773 if (ret) { 774 device_printf(dev, "unable to setup SMS IRQ\n"); 775 goto err1; 776 } 777 nosms: 778 return (0); 779 err1: 780 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 781 err2: 782 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 783 sc->sc_ioport); 784 mtx_destroy(&sc->sc_mtx); 785 if (sc->sc_sms_tq) 786 taskqueue_free(sc->sc_sms_tq); 787 788 return (ret); 789 } 790 791 static int 792 asmc_detach(device_t dev) 793 { 794 struct asmc_softc *sc = device_get_softc(dev); 795 796 if (sc->sc_sms_tq) { 797 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 798 taskqueue_free(sc->sc_sms_tq); 799 } 800 if (sc->sc_cookie) 801 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 802 if (sc->sc_irq) 803 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 804 sc->sc_irq); 805 if (sc->sc_ioport) 806 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 807 sc->sc_ioport); 808 mtx_destroy(&sc->sc_mtx); 809 810 return (0); 811 } 812 813 static int 814 asmc_resume(device_t dev) 815 { 816 uint8_t buf[2]; 817 buf[0] = light_control; 818 buf[1] = 0x00; 819 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 820 return (0); 821 } 822 823 #ifdef DEBUG 824 void asmc_dumpall(device_t dev) 825 { 826 struct asmc_softc *sc = device_get_softc(dev); 827 int i; 828 829 if (sc->sc_nkeys == 0) { 830 device_printf(dev, "asmc_dumpall: key count not available\n"); 831 return; 832 } 833 834 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys); 835 for (i = 0; i < sc->sc_nkeys; i++) 836 asmc_key_dump(dev, i); 837 } 838 #endif 839 840 static int 841 asmc_init(device_t dev) 842 { 843 struct asmc_softc *sc = device_get_softc(dev); 844 int i, error = 1; 845 uint8_t buf[4]; 846 847 if (sc->sc_model->smc_sms_x == NULL) 848 goto nosms; 849 850 /* 851 * We are ready to receive interrupts from the SMS. 852 */ 853 buf[0] = 0x01; 854 ASMC_DPRINTF(("intok key\n")); 855 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 856 DELAY(50); 857 858 /* 859 * Initiate the polling intervals. 860 */ 861 buf[0] = 20; /* msecs */ 862 ASMC_DPRINTF(("low int key\n")); 863 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 864 DELAY(200); 865 866 buf[0] = 20; /* msecs */ 867 ASMC_DPRINTF(("high int key\n")); 868 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 869 DELAY(200); 870 871 buf[0] = 0x00; 872 buf[1] = 0x60; 873 ASMC_DPRINTF(("sms low key\n")); 874 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 875 DELAY(200); 876 877 buf[0] = 0x01; 878 buf[1] = 0xc0; 879 ASMC_DPRINTF(("sms high key\n")); 880 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 881 DELAY(200); 882 883 /* 884 * I'm not sure what this key does, but it seems to be 885 * required. 886 */ 887 buf[0] = 0x01; 888 ASMC_DPRINTF(("sms flag key\n")); 889 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 890 DELAY(100); 891 892 sc->sc_sms_intr_works = 0; 893 894 /* 895 * Retry SMS initialization 1000 times 896 * (takes approx. 2 seconds in worst case) 897 */ 898 for (i = 0; i < 1000; i++) { 899 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 900 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 901 error = 0; 902 sc->sc_sms_intr_works = 1; 903 goto out; 904 } 905 buf[0] = ASMC_SMS_INIT1; 906 buf[1] = ASMC_SMS_INIT2; 907 ASMC_DPRINTF(("sms key\n")); 908 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 909 DELAY(50); 910 } 911 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 912 913 out: 914 asmc_sms_calibrate(dev); 915 nosms: 916 sc->sc_nfan = asmc_fan_count(dev); 917 if (sc->sc_nfan > ASMC_MAXFANS) { 918 device_printf(dev, "more than %d fans were detected. Please " 919 "report this.\n", ASMC_MAXFANS); 920 sc->sc_nfan = ASMC_MAXFANS; 921 } 922 923 /* 924 * Read and cache the number of SMC keys (32 bit buffer) 925 */ 926 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) { 927 sc->sc_nkeys = be32dec(buf); 928 if (bootverbose) 929 device_printf(dev, "number of keys: %d\n", sc->sc_nkeys); 930 } else { 931 sc->sc_nkeys = 0; 932 } 933 934 #ifdef DEBUG 935 asmc_dumpall(dev); 936 #endif 937 938 return (error); 939 } 940 941 /* 942 * We need to make sure that the SMC acks the byte sent. 943 * Just wait up to (amount * 10) ms. 944 */ 945 static int 946 asmc_wait_ack(device_t dev, uint8_t val, int amount) 947 { 948 struct asmc_softc *sc = device_get_softc(dev); 949 u_int i; 950 951 val = val & ASMC_STATUS_MASK; 952 953 for (i = 0; i < amount; i++) { 954 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 955 return (0); 956 DELAY(10); 957 } 958 959 return (1); 960 } 961 962 /* 963 * We need to make sure that the SMC acks the byte sent. 964 * Just wait up to 100 ms. 965 */ 966 static int 967 asmc_wait(device_t dev, uint8_t val) 968 { 969 #ifdef DEBUG 970 struct asmc_softc *sc; 971 #endif 972 973 if (asmc_wait_ack(dev, val, 1000) == 0) 974 return (0); 975 976 #ifdef DEBUG 977 sc = device_get_softc(dev); 978 #endif 979 val = val & ASMC_STATUS_MASK; 980 981 #ifdef DEBUG 982 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 983 ASMC_CMDPORT_READ(sc)); 984 #endif 985 return (1); 986 } 987 988 /* 989 * Send the given command, retrying up to 10 times if 990 * the acknowledgement fails. 991 */ 992 static int 993 asmc_command(device_t dev, uint8_t command) { 994 int i; 995 struct asmc_softc *sc = device_get_softc(dev); 996 997 for (i=0; i < 10; i++) { 998 ASMC_CMDPORT_WRITE(sc, command); 999 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 1000 return (0); 1001 } 1002 } 1003 1004 #ifdef DEBUG 1005 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 1006 ASMC_CMDPORT_READ(sc)); 1007 #endif 1008 return (1); 1009 } 1010 1011 static int 1012 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1013 { 1014 int i, error = 1, try = 0; 1015 struct asmc_softc *sc = device_get_softc(dev); 1016 1017 mtx_lock_spin(&sc->sc_mtx); 1018 1019 begin: 1020 if (asmc_command(dev, ASMC_CMDREAD)) 1021 goto out; 1022 1023 for (i = 0; i < 4; i++) { 1024 ASMC_DATAPORT_WRITE(sc, key[i]); 1025 if (asmc_wait(dev, 0x04)) 1026 goto out; 1027 } 1028 1029 ASMC_DATAPORT_WRITE(sc, len); 1030 1031 for (i = 0; i < len; i++) { 1032 if (asmc_wait(dev, 0x05)) 1033 goto out; 1034 buf[i] = ASMC_DATAPORT_READ(sc); 1035 } 1036 1037 error = 0; 1038 out: 1039 if (error) { 1040 if (++try < 10) goto begin; 1041 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1042 __func__, key, try); 1043 } 1044 1045 mtx_unlock_spin(&sc->sc_mtx); 1046 1047 return (error); 1048 } 1049 1050 #ifdef DEBUG 1051 static int 1052 asmc_key_dump(device_t dev, int number) 1053 { 1054 struct asmc_softc *sc = device_get_softc(dev); 1055 char key[5] = { 0 }; 1056 char type[7] = { 0 }; 1057 uint8_t index[4]; 1058 uint8_t v[32]; 1059 uint8_t maxlen; 1060 int i, error = 1, try = 0; 1061 1062 mtx_lock_spin(&sc->sc_mtx); 1063 1064 index[0] = (number >> 24) & 0xff; 1065 index[1] = (number >> 16) & 0xff; 1066 index[2] = (number >> 8) & 0xff; 1067 index[3] = (number) & 0xff; 1068 1069 begin: 1070 if (asmc_command(dev, 0x12)) 1071 goto out; 1072 1073 for (i = 0; i < 4; i++) { 1074 ASMC_DATAPORT_WRITE(sc, index[i]); 1075 if (asmc_wait(dev, 0x04)) 1076 goto out; 1077 } 1078 1079 ASMC_DATAPORT_WRITE(sc, 4); 1080 1081 for (i = 0; i < 4; i++) { 1082 if (asmc_wait(dev, 0x05)) 1083 goto out; 1084 key[i] = ASMC_DATAPORT_READ(sc); 1085 } 1086 1087 /* get type */ 1088 if (asmc_command(dev, 0x13)) 1089 goto out; 1090 1091 for (i = 0; i < 4; i++) { 1092 ASMC_DATAPORT_WRITE(sc, key[i]); 1093 if (asmc_wait(dev, 0x04)) 1094 goto out; 1095 } 1096 1097 ASMC_DATAPORT_WRITE(sc, 6); 1098 1099 for (i = 0; i < 6; i++) { 1100 if (asmc_wait(dev, 0x05)) 1101 goto out; 1102 type[i] = ASMC_DATAPORT_READ(sc); 1103 } 1104 1105 error = 0; 1106 out: 1107 if (error) { 1108 if (++try < 10) goto begin; 1109 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1110 __func__, key, try); 1111 mtx_unlock_spin(&sc->sc_mtx); 1112 } 1113 else { 1114 char buf[1024]; 1115 char buf2[8]; 1116 mtx_unlock_spin(&sc->sc_mtx); 1117 maxlen = type[0]; 1118 type[0] = ' '; 1119 type[5] = 0; 1120 if (maxlen > sizeof(v)) { 1121 device_printf(dev, 1122 "WARNING: cropping maxlen from %d to %zu\n", 1123 maxlen, sizeof(v)); 1124 maxlen = sizeof(v); 1125 } 1126 for (i = 0; i < sizeof(v); i++) { 1127 v[i] = 0; 1128 } 1129 asmc_key_read(dev, key, v, maxlen); 1130 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1131 "(len %d), data", number, key, type, maxlen); 1132 for (i = 0; i < maxlen; i++) { 1133 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1134 strlcat(buf, buf2, sizeof(buf)); 1135 } 1136 strlcat(buf, " \n", sizeof(buf)); 1137 device_printf(dev, "%s", buf); 1138 } 1139 1140 return (error); 1141 } 1142 #endif 1143 1144 static int 1145 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1146 { 1147 int i, error = -1, try = 0; 1148 struct asmc_softc *sc = device_get_softc(dev); 1149 1150 mtx_lock_spin(&sc->sc_mtx); 1151 1152 begin: 1153 ASMC_DPRINTF(("cmd port: cmd write\n")); 1154 if (asmc_command(dev, ASMC_CMDWRITE)) 1155 goto out; 1156 1157 ASMC_DPRINTF(("data port: key\n")); 1158 for (i = 0; i < 4; i++) { 1159 ASMC_DATAPORT_WRITE(sc, key[i]); 1160 if (asmc_wait(dev, 0x04)) 1161 goto out; 1162 } 1163 ASMC_DPRINTF(("data port: length\n")); 1164 ASMC_DATAPORT_WRITE(sc, len); 1165 1166 ASMC_DPRINTF(("data port: buffer\n")); 1167 for (i = 0; i < len; i++) { 1168 if (asmc_wait(dev, 0x04)) 1169 goto out; 1170 ASMC_DATAPORT_WRITE(sc, buf[i]); 1171 } 1172 1173 error = 0; 1174 out: 1175 if (error) { 1176 if (++try < 10) goto begin; 1177 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1178 __func__, key, try); 1179 } 1180 1181 mtx_unlock_spin(&sc->sc_mtx); 1182 1183 return (error); 1184 1185 } 1186 1187 /* 1188 * Fan control functions. 1189 */ 1190 static int 1191 asmc_fan_count(device_t dev) 1192 { 1193 uint8_t buf[1]; 1194 1195 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1196 return (-1); 1197 1198 return (buf[0]); 1199 } 1200 1201 static int 1202 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1203 { 1204 int speed; 1205 uint8_t buf[2]; 1206 char fankey[5]; 1207 1208 snprintf(fankey, sizeof(fankey), key, fan); 1209 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1210 return (-1); 1211 speed = (buf[0] << 6) | (buf[1] >> 2); 1212 1213 return (speed); 1214 } 1215 1216 static char* 1217 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, uint8_t buflen) 1218 { 1219 char fankey[5]; 1220 char* desc; 1221 1222 snprintf(fankey, sizeof(fankey), key, fan); 1223 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1224 return (NULL); 1225 desc = buf+4; 1226 1227 return (desc); 1228 } 1229 1230 static int 1231 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1232 { 1233 uint8_t buf[2]; 1234 char fankey[5]; 1235 1236 speed *= 4; 1237 1238 buf[0] = speed>>8; 1239 buf[1] = speed; 1240 1241 snprintf(fankey, sizeof(fankey), key, fan); 1242 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1243 return (-1); 1244 1245 return (0); 1246 } 1247 1248 static int 1249 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1250 { 1251 device_t dev = (device_t) arg1; 1252 int fan = arg2; 1253 int error; 1254 int32_t v; 1255 1256 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1257 error = sysctl_handle_int(oidp, &v, 0, req); 1258 1259 return (error); 1260 } 1261 1262 static int 1263 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1264 { 1265 uint8_t buf[16]; 1266 device_t dev = (device_t) arg1; 1267 int fan = arg2; 1268 int error = true; 1269 char* desc; 1270 1271 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1272 1273 if (desc != NULL) 1274 error = sysctl_handle_string(oidp, desc, 0, req); 1275 1276 return (error); 1277 } 1278 1279 static int 1280 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1281 { 1282 device_t dev = (device_t) arg1; 1283 int fan = arg2; 1284 int error; 1285 int32_t v; 1286 1287 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1288 error = sysctl_handle_int(oidp, &v, 0, req); 1289 1290 return (error); 1291 } 1292 1293 static int 1294 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1295 { 1296 device_t dev = (device_t) arg1; 1297 int fan = arg2; 1298 int error; 1299 int32_t v; 1300 1301 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1302 error = sysctl_handle_int(oidp, &v, 0, req); 1303 1304 if (error == 0 && req->newptr != NULL) { 1305 unsigned int newspeed = v; 1306 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1307 } 1308 1309 return (error); 1310 } 1311 1312 static int 1313 asmc_mb_sysctl_fanmaxspeed(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_FANMAXSPEED, fan); 1321 error = sysctl_handle_int(oidp, &v, 0, req); 1322 1323 if (error == 0 && req->newptr != NULL) { 1324 unsigned int newspeed = v; 1325 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1326 } 1327 1328 return (error); 1329 } 1330 1331 static int 1332 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1333 { 1334 device_t dev = (device_t) arg1; 1335 int fan = arg2; 1336 int error; 1337 int32_t v; 1338 1339 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1340 error = sysctl_handle_int(oidp, &v, 0, req); 1341 1342 if (error == 0 && req->newptr != NULL) { 1343 unsigned int newspeed = v; 1344 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1345 } 1346 1347 return (error); 1348 } 1349 1350 /* 1351 * Temperature functions. 1352 */ 1353 static int 1354 asmc_temp_getvalue(device_t dev, const char *key) 1355 { 1356 uint8_t buf[2]; 1357 1358 /* 1359 * Check for invalid temperatures. 1360 */ 1361 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1362 return (-1); 1363 1364 return (buf[0]); 1365 } 1366 1367 static int 1368 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1369 { 1370 device_t dev = (device_t) arg1; 1371 struct asmc_softc *sc = device_get_softc(dev); 1372 int error, val; 1373 1374 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1375 error = sysctl_handle_int(oidp, &val, 0, req); 1376 1377 return (error); 1378 } 1379 1380 /* 1381 * Sudden Motion Sensor functions. 1382 */ 1383 static int 1384 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1385 { 1386 uint8_t buf[2]; 1387 int error; 1388 1389 /* no need to do locking here as asmc_key_read() already does it */ 1390 switch (key[3]) { 1391 case 'X': 1392 case 'Y': 1393 case 'Z': 1394 error = asmc_key_read(dev, key, buf, sizeof buf); 1395 break; 1396 default: 1397 device_printf(dev, "%s called with invalid argument %s\n", 1398 __func__, key); 1399 error = 1; 1400 goto out; 1401 } 1402 *val = ((int16_t)buf[0] << 8) | buf[1]; 1403 out: 1404 return (error); 1405 } 1406 1407 static void 1408 asmc_sms_calibrate(device_t dev) 1409 { 1410 struct asmc_softc *sc = device_get_softc(dev); 1411 1412 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1413 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1414 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1415 } 1416 1417 static int 1418 asmc_sms_intrfast(void *arg) 1419 { 1420 uint8_t type; 1421 device_t dev = (device_t) arg; 1422 struct asmc_softc *sc = device_get_softc(dev); 1423 if (!sc->sc_sms_intr_works) 1424 return (FILTER_HANDLED); 1425 1426 mtx_lock_spin(&sc->sc_mtx); 1427 type = ASMC_INTPORT_READ(sc); 1428 mtx_unlock_spin(&sc->sc_mtx); 1429 1430 sc->sc_sms_intrtype = type; 1431 asmc_sms_printintr(dev, type); 1432 1433 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1434 return (FILTER_HANDLED); 1435 } 1436 1437 static void 1438 asmc_sms_printintr(device_t dev, uint8_t type) 1439 { 1440 struct asmc_softc *sc = device_get_softc(dev); 1441 1442 switch (type) { 1443 case ASMC_SMS_INTFF: 1444 device_printf(dev, "WARNING: possible free fall!\n"); 1445 break; 1446 case ASMC_SMS_INTHA: 1447 device_printf(dev, "WARNING: high acceleration detected!\n"); 1448 break; 1449 case ASMC_SMS_INTSH: 1450 device_printf(dev, "WARNING: possible shock!\n"); 1451 break; 1452 case ASMC_ALSL_INT2A: 1453 /* 1454 * This suppresses console and log messages for the ambient 1455 * light sensor for models known to generate this interrupt. 1456 */ 1457 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1458 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1459 break; 1460 /* FALLTHROUGH */ 1461 default: 1462 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1463 } 1464 } 1465 1466 static void 1467 asmc_sms_task(void *arg, int pending) 1468 { 1469 struct asmc_softc *sc = (struct asmc_softc *)arg; 1470 char notify[16]; 1471 int type; 1472 1473 switch (sc->sc_sms_intrtype) { 1474 case ASMC_SMS_INTFF: 1475 type = 2; 1476 break; 1477 case ASMC_SMS_INTHA: 1478 type = 1; 1479 break; 1480 case ASMC_SMS_INTSH: 1481 type = 0; 1482 break; 1483 default: 1484 type = 255; 1485 } 1486 1487 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1488 devctl_notify("ACPI", "asmc", "SMS", notify); 1489 } 1490 1491 static int 1492 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1493 { 1494 device_t dev = (device_t) arg1; 1495 int error; 1496 int16_t val; 1497 int32_t v; 1498 1499 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1500 v = (int32_t) val; 1501 error = sysctl_handle_int(oidp, &v, 0, req); 1502 1503 return (error); 1504 } 1505 1506 static int 1507 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1508 { 1509 device_t dev = (device_t) arg1; 1510 int error; 1511 int16_t val; 1512 int32_t v; 1513 1514 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1515 v = (int32_t) val; 1516 error = sysctl_handle_int(oidp, &v, 0, req); 1517 1518 return (error); 1519 } 1520 1521 static int 1522 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1523 { 1524 device_t dev = (device_t) arg1; 1525 int error; 1526 int16_t val; 1527 int32_t v; 1528 1529 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1530 v = (int32_t) val; 1531 error = sysctl_handle_int(oidp, &v, 0, req); 1532 1533 return (error); 1534 } 1535 1536 static int 1537 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1538 { 1539 device_t dev = (device_t) arg1; 1540 uint8_t buf[6]; 1541 int error; 1542 int32_t v; 1543 1544 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1545 v = buf[2]; 1546 error = sysctl_handle_int(oidp, &v, 0, req); 1547 1548 return (error); 1549 } 1550 1551 static int 1552 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1553 { 1554 device_t dev = (device_t) arg1; 1555 uint8_t buf[6]; 1556 int error; 1557 int32_t v; 1558 1559 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1560 v = buf[2]; 1561 error = sysctl_handle_int(oidp, &v, 0, req); 1562 1563 return (error); 1564 } 1565 1566 static int 1567 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1568 { 1569 device_t dev = (device_t) arg1; 1570 uint8_t buf[2]; 1571 int error; 1572 int v; 1573 1574 v = light_control; 1575 error = sysctl_handle_int(oidp, &v, 0, req); 1576 1577 if (error == 0 && req->newptr != NULL) { 1578 if (v < 0 || v > 255) 1579 return (EINVAL); 1580 light_control = v; 1581 buf[0] = light_control; 1582 buf[1] = 0x00; 1583 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1584 } 1585 return (error); 1586 } 1587 1588 static int 1589 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1590 { 1591 device_t dev = (device_t) arg1; 1592 uint8_t buf[10]; 1593 int error; 1594 uint32_t v; 1595 1596 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1597 1598 /* 1599 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1600 * 1601 * Extract it out manually here, then shift/clamp it. 1602 */ 1603 v = be32dec(&buf[6]); 1604 1605 /* 1606 * Shift out, clamp at 255; that way it looks like the 1607 * earlier SMC firmware version responses. 1608 */ 1609 v = v >> 8; 1610 if (v > 255) 1611 v = 255; 1612 1613 error = sysctl_handle_int(oidp, &v, 0, req); 1614 1615 return (error); 1616 } 1617