1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 #include <sys/param.h> 41 #include <sys/bus.h> 42 #include <sys/conf.h> 43 #include <sys/endian.h> 44 #include <sys/kernel.h> 45 #include <sys/lock.h> 46 #include <sys/malloc.h> 47 #include <sys/module.h> 48 #include <sys/mutex.h> 49 #include <sys/sysctl.h> 50 #include <sys/systm.h> 51 #include <sys/taskqueue.h> 52 #include <sys/rman.h> 53 54 #include <machine/resource.h> 55 56 #include <contrib/dev/acpica/include/acpi.h> 57 58 #include <dev/acpica/acpivar.h> 59 #include <dev/asmc/asmcvar.h> 60 61 /* 62 * Device interface. 63 */ 64 static int asmc_probe(device_t dev); 65 static int asmc_attach(device_t dev); 66 static int asmc_detach(device_t dev); 67 static int asmc_resume(device_t dev); 68 69 /* 70 * SMC functions. 71 */ 72 static int asmc_init(device_t dev); 73 static int asmc_command(device_t dev, uint8_t command); 74 static int asmc_wait(device_t dev, uint8_t val); 75 static int asmc_wait_ack(device_t dev, uint8_t val, int amount); 76 static int asmc_key_write(device_t dev, const char *key, uint8_t *buf, 77 uint8_t len); 78 static int asmc_key_read(device_t dev, const char *key, uint8_t *buf, 79 uint8_t); 80 static int asmc_fan_count(device_t dev); 81 static int asmc_fan_getvalue(device_t dev, const char *key, int fan); 82 static int asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed); 83 static int asmc_temp_getvalue(device_t dev, const char *key); 84 static int asmc_sms_read(device_t, const char *key, int16_t *val); 85 static void asmc_sms_calibrate(device_t dev); 86 static int asmc_sms_intrfast(void *arg); 87 static void asmc_sms_printintr(device_t dev, uint8_t); 88 static void asmc_sms_task(void *arg, int pending); 89 #ifdef DEBUG 90 void asmc_dumpall(device_t); 91 static int asmc_key_dump(device_t, int); 92 #endif 93 94 /* 95 * Model functions. 96 */ 97 static int asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS); 98 static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS); 99 static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS); 100 static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS); 101 static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS); 102 static int asmc_mb_sysctl_fantargetspeed(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, NULL, NULL, NULL, 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, NULL, NULL, NULL, 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, NULL, NULL, NULL, 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 /* The Mac Mini has no SMS */ 285 { 286 "Macmini1,1", "Apple SMC Mac Mini", 287 NULL, NULL, NULL, 288 ASMC_FAN_FUNCS, 289 NULL, NULL, NULL, 290 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS 291 }, 292 293 /* The Mac Mini 2,1 has no SMS */ 294 { 295 "Macmini2,1", "Apple SMC Mac Mini 2,1", 296 ASMC_SMS_FUNCS_DISABLED, 297 ASMC_FAN_FUNCS, 298 ASMC_LIGHT_FUNCS_DISABLED, 299 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS 300 }, 301 302 /* The Mac Mini 3,1 has no SMS */ 303 { 304 "Macmini3,1", "Apple SMC Mac Mini 3,1", 305 NULL, NULL, NULL, 306 ASMC_FAN_FUNCS, 307 NULL, NULL, NULL, 308 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS 309 }, 310 311 /* The Mac Mini 4,1 (Mid-2010) has no SMS */ 312 { 313 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)", 314 ASMC_SMS_FUNCS_DISABLED, 315 ASMC_FAN_FUNCS, 316 ASMC_LIGHT_FUNCS_DISABLED, 317 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS 318 }, 319 320 /* The Mac Mini 5,1 has no SMS */ 321 /* - same sensors as Mac Mini 5,2 */ 322 { 323 "Macmini5,1", "Apple SMC Mac Mini 5,1", 324 NULL, NULL, NULL, 325 ASMC_FAN_FUNCS2, 326 NULL, NULL, NULL, 327 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 328 }, 329 330 /* The Mac Mini 5,2 has no SMS */ 331 { 332 "Macmini5,2", "Apple SMC Mac Mini 5,2", 333 NULL, NULL, NULL, 334 ASMC_FAN_FUNCS2, 335 NULL, NULL, NULL, 336 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 337 }, 338 339 /* The Mac Mini 5,3 has no SMS */ 340 /* - same sensors as Mac Mini 5,2 */ 341 { 342 "Macmini5,3", "Apple SMC Mac Mini 5,3", 343 NULL, NULL, NULL, 344 ASMC_FAN_FUNCS2, 345 NULL, NULL, NULL, 346 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 347 }, 348 349 /* The Mac Mini 7,1 has no SMS */ 350 { 351 "Macmini7,1", "Apple SMC Mac Mini 7,1", 352 NULL, NULL, NULL, 353 ASMC_FAN_FUNCS2, 354 NULL, NULL, NULL, 355 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS 356 }, 357 358 /* Idem for the Mac Pro "Quad Core" (original) */ 359 { 360 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)", 361 NULL, NULL, NULL, 362 ASMC_FAN_FUNCS, 363 NULL, NULL, NULL, 364 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS 365 }, 366 367 /* Idem for the Mac Pro (8-core) */ 368 { 369 "MacPro2", "Apple SMC Mac Pro (8-core)", 370 NULL, NULL, NULL, 371 ASMC_FAN_FUNCS, 372 NULL, NULL, NULL, 373 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 374 }, 375 376 /* Idem for the MacPro 2010*/ 377 { 378 "MacPro5,1", "Apple SMC MacPro (2010)", 379 NULL, NULL, NULL, 380 ASMC_FAN_FUNCS, 381 NULL, NULL, NULL, 382 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 383 }, 384 385 /* Idem for the Mac Pro 2013 (cylinder) */ 386 { 387 "MacPro6,1", "Apple SMC Mac Pro (2013)", 388 ASMC_SMS_FUNCS_DISABLED, 389 ASMC_FAN_FUNCS2, 390 ASMC_LIGHT_FUNCS_DISABLED, 391 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 392 }, 393 394 { 395 "MacBookAir1,1", "Apple SMC MacBook Air", 396 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 397 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 398 }, 399 400 { 401 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 402 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 403 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 404 }, 405 406 { 407 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 408 ASMC_SMS_FUNCS_DISABLED, 409 ASMC_FAN_FUNCS2, 410 ASMC_LIGHT_FUNCS, 411 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 412 }, 413 414 { 415 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 416 ASMC_SMS_FUNCS_DISABLED, 417 ASMC_FAN_FUNCS2, 418 ASMC_LIGHT_FUNCS, 419 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 420 }, 421 422 { 423 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 424 ASMC_SMS_FUNCS_DISABLED, 425 ASMC_FAN_FUNCS2, 426 ASMC_LIGHT_FUNCS, 427 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 428 }, 429 430 { 431 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 432 ASMC_SMS_FUNCS_DISABLED, 433 ASMC_FAN_FUNCS2, 434 ASMC_LIGHT_FUNCS, 435 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 436 }, 437 { 438 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 439 ASMC_SMS_FUNCS_DISABLED, 440 ASMC_FAN_FUNCS2, 441 ASMC_LIGHT_FUNCS_10BYTE, 442 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 443 }, 444 { 445 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)", 446 ASMC_SMS_FUNCS_DISABLED, 447 ASMC_FAN_FUNCS2, 448 ASMC_LIGHT_FUNCS_10BYTE, 449 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 450 }, 451 { 452 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 453 ASMC_SMS_FUNCS_DISABLED, 454 ASMC_FAN_FUNCS2, 455 ASMC_LIGHT_FUNCS, 456 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 457 }, 458 { 459 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)", 460 ASMC_SMS_FUNCS_DISABLED, 461 ASMC_FAN_FUNCS2, 462 ASMC_LIGHT_FUNCS, 463 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 464 }, 465 { NULL, NULL } 466 }; 467 468 #undef ASMC_SMS_FUNCS 469 #undef ASMC_SMS_FUNCS_DISABLED 470 #undef ASMC_FAN_FUNCS 471 #undef ASMC_FAN_FUNCS2 472 #undef ASMC_LIGHT_FUNCS 473 474 /* 475 * Driver methods. 476 */ 477 static device_method_t asmc_methods[] = { 478 DEVMETHOD(device_probe, asmc_probe), 479 DEVMETHOD(device_attach, asmc_attach), 480 DEVMETHOD(device_detach, asmc_detach), 481 DEVMETHOD(device_resume, asmc_resume), 482 { 0, 0 } 483 }; 484 485 static driver_t asmc_driver = { 486 "asmc", 487 asmc_methods, 488 sizeof(struct asmc_softc) 489 }; 490 491 /* 492 * Debugging 493 */ 494 #define _COMPONENT ACPI_OEM 495 ACPI_MODULE_NAME("ASMC") 496 #ifdef DEBUG 497 #define ASMC_DPRINTF(str) device_printf(dev, str) 498 #else 499 #define ASMC_DPRINTF(str) 500 #endif 501 502 /* NB: can't be const */ 503 static char *asmc_ids[] = { "APP0001", NULL }; 504 505 static unsigned int light_control = 0; 506 507 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 508 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 509 510 static const struct asmc_model * 511 asmc_match(device_t dev) 512 { 513 int i; 514 char *model; 515 516 model = kern_getenv("smbios.system.product"); 517 if (model == NULL) 518 return (NULL); 519 520 for (i = 0; asmc_models[i].smc_model; i++) { 521 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 522 freeenv(model); 523 return (&asmc_models[i]); 524 } 525 } 526 freeenv(model); 527 528 return (NULL); 529 } 530 531 static int 532 asmc_probe(device_t dev) 533 { 534 const struct asmc_model *model; 535 int rv; 536 537 if (resource_disabled("asmc", 0)) 538 return (ENXIO); 539 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 540 if (rv > 0) 541 return (rv); 542 543 model = asmc_match(dev); 544 if (!model) { 545 device_printf(dev, "model not recognized\n"); 546 return (ENXIO); 547 } 548 device_set_desc(dev, model->smc_desc); 549 550 return (rv); 551 } 552 553 static int 554 asmc_attach(device_t dev) 555 { 556 int i, j; 557 int ret; 558 char name[2]; 559 struct asmc_softc *sc = device_get_softc(dev); 560 struct sysctl_ctx_list *sysctlctx; 561 struct sysctl_oid *sysctlnode; 562 const struct asmc_model *model; 563 564 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 565 &sc->sc_rid_port, RF_ACTIVE); 566 if (sc->sc_ioport == NULL) { 567 device_printf(dev, "unable to allocate IO port\n"); 568 return (ENOMEM); 569 } 570 571 sysctlctx = device_get_sysctl_ctx(dev); 572 sysctlnode = device_get_sysctl_tree(dev); 573 574 model = asmc_match(dev); 575 576 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 577 578 sc->sc_model = model; 579 asmc_init(dev); 580 581 /* 582 * dev.asmc.n.fan.* tree. 583 */ 584 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 585 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 586 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 587 588 for (i = 1; i <= sc->sc_nfan; i++) { 589 j = i - 1; 590 name[0] = '0' + j; 591 name[1] = 0; 592 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 593 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 594 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 595 "Fan Subtree"); 596 597 SYSCTL_ADD_PROC(sysctlctx, 598 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 599 OID_AUTO, "id", 600 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 601 dev, j, model->smc_fan_id, "I", 602 "Fan ID"); 603 604 SYSCTL_ADD_PROC(sysctlctx, 605 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 606 OID_AUTO, "speed", 607 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 608 dev, j, model->smc_fan_speed, "I", 609 "Fan speed in RPM"); 610 611 SYSCTL_ADD_PROC(sysctlctx, 612 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 613 OID_AUTO, "safespeed", 614 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 615 dev, j, model->smc_fan_safespeed, "I", 616 "Fan safe speed in RPM"); 617 618 SYSCTL_ADD_PROC(sysctlctx, 619 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 620 OID_AUTO, "minspeed", 621 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 622 dev, j, model->smc_fan_minspeed, "I", 623 "Fan minimum speed in RPM"); 624 625 SYSCTL_ADD_PROC(sysctlctx, 626 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 627 OID_AUTO, "maxspeed", 628 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 629 dev, j, model->smc_fan_maxspeed, "I", 630 "Fan maximum speed in RPM"); 631 632 SYSCTL_ADD_PROC(sysctlctx, 633 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 634 OID_AUTO, "targetspeed", 635 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 636 dev, j, model->smc_fan_targetspeed, "I", 637 "Fan target speed in RPM"); 638 } 639 640 /* 641 * dev.asmc.n.temp tree. 642 */ 643 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 644 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 645 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 646 647 for (i = 0; model->smc_temps[i]; i++) { 648 SYSCTL_ADD_PROC(sysctlctx, 649 SYSCTL_CHILDREN(sc->sc_temp_tree), 650 OID_AUTO, model->smc_tempnames[i], 651 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 652 dev, i, asmc_temp_sysctl, "I", 653 model->smc_tempdescs[i]); 654 } 655 656 /* 657 * dev.asmc.n.light 658 */ 659 if (model->smc_light_left) { 660 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 661 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 662 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 663 "Keyboard backlight sensors"); 664 665 SYSCTL_ADD_PROC(sysctlctx, 666 SYSCTL_CHILDREN(sc->sc_light_tree), 667 OID_AUTO, "left", 668 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 669 dev, 0, model->smc_light_left, "I", 670 "Keyboard backlight left sensor"); 671 672 SYSCTL_ADD_PROC(sysctlctx, 673 SYSCTL_CHILDREN(sc->sc_light_tree), 674 OID_AUTO, "right", 675 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 676 dev, 0, model->smc_light_right, "I", 677 "Keyboard backlight right sensor"); 678 679 SYSCTL_ADD_PROC(sysctlctx, 680 SYSCTL_CHILDREN(sc->sc_light_tree), 681 OID_AUTO, "control", 682 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 683 CTLFLAG_NEEDGIANT, dev, 0, 684 model->smc_light_control, "I", 685 "Keyboard backlight brightness control"); 686 } 687 688 if (model->smc_sms_x == NULL) 689 goto nosms; 690 691 /* 692 * dev.asmc.n.sms tree. 693 */ 694 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 695 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 696 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 697 698 SYSCTL_ADD_PROC(sysctlctx, 699 SYSCTL_CHILDREN(sc->sc_sms_tree), 700 OID_AUTO, "x", 701 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 702 dev, 0, model->smc_sms_x, "I", 703 "Sudden Motion Sensor X value"); 704 705 SYSCTL_ADD_PROC(sysctlctx, 706 SYSCTL_CHILDREN(sc->sc_sms_tree), 707 OID_AUTO, "y", 708 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 709 dev, 0, model->smc_sms_y, "I", 710 "Sudden Motion Sensor Y value"); 711 712 SYSCTL_ADD_PROC(sysctlctx, 713 SYSCTL_CHILDREN(sc->sc_sms_tree), 714 OID_AUTO, "z", 715 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 716 dev, 0, model->smc_sms_z, "I", 717 "Sudden Motion Sensor Z value"); 718 719 /* 720 * Need a taskqueue to send devctl_notify() events 721 * when the SMS interrupt us. 722 * 723 * PI_REALTIME is used due to the sensitivity of the 724 * interrupt. An interrupt from the SMS means that the 725 * disk heads should be turned off as quickly as possible. 726 * 727 * We only need to do this for the non INTR_FILTER case. 728 */ 729 sc->sc_sms_tq = NULL; 730 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 731 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 732 taskqueue_thread_enqueue, &sc->sc_sms_tq); 733 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 734 device_get_nameunit(dev)); 735 /* 736 * Allocate an IRQ for the SMS. 737 */ 738 sc->sc_rid_irq = 0; 739 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 740 &sc->sc_rid_irq, RF_ACTIVE); 741 if (sc->sc_irq == NULL) { 742 device_printf(dev, "unable to allocate IRQ resource\n"); 743 ret = ENXIO; 744 goto err2; 745 } 746 747 ret = bus_setup_intr(dev, sc->sc_irq, 748 INTR_TYPE_MISC | INTR_MPSAFE, 749 asmc_sms_intrfast, NULL, 750 dev, &sc->sc_cookie); 751 752 if (ret) { 753 device_printf(dev, "unable to setup SMS IRQ\n"); 754 goto err1; 755 } 756 nosms: 757 return (0); 758 err1: 759 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 760 err2: 761 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 762 sc->sc_ioport); 763 mtx_destroy(&sc->sc_mtx); 764 if (sc->sc_sms_tq) 765 taskqueue_free(sc->sc_sms_tq); 766 767 return (ret); 768 } 769 770 static int 771 asmc_detach(device_t dev) 772 { 773 struct asmc_softc *sc = device_get_softc(dev); 774 775 if (sc->sc_sms_tq) { 776 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 777 taskqueue_free(sc->sc_sms_tq); 778 } 779 if (sc->sc_cookie) 780 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 781 if (sc->sc_irq) 782 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 783 sc->sc_irq); 784 if (sc->sc_ioport) 785 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 786 sc->sc_ioport); 787 mtx_destroy(&sc->sc_mtx); 788 789 return (0); 790 } 791 792 static int 793 asmc_resume(device_t dev) 794 { 795 uint8_t buf[2]; 796 buf[0] = light_control; 797 buf[1] = 0x00; 798 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 799 return (0); 800 } 801 802 #ifdef DEBUG 803 void asmc_dumpall(device_t dev) 804 { 805 int i; 806 807 /* XXX magic number */ 808 for (i=0; i < 0x100; i++) 809 asmc_key_dump(dev, i); 810 } 811 #endif 812 813 static int 814 asmc_init(device_t dev) 815 { 816 struct asmc_softc *sc = device_get_softc(dev); 817 int i, error = 1; 818 uint8_t buf[4]; 819 820 if (sc->sc_model->smc_sms_x == NULL) 821 goto nosms; 822 823 /* 824 * We are ready to receive interrupts from the SMS. 825 */ 826 buf[0] = 0x01; 827 ASMC_DPRINTF(("intok key\n")); 828 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 829 DELAY(50); 830 831 /* 832 * Initiate the polling intervals. 833 */ 834 buf[0] = 20; /* msecs */ 835 ASMC_DPRINTF(("low int key\n")); 836 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 837 DELAY(200); 838 839 buf[0] = 20; /* msecs */ 840 ASMC_DPRINTF(("high int key\n")); 841 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 842 DELAY(200); 843 844 buf[0] = 0x00; 845 buf[1] = 0x60; 846 ASMC_DPRINTF(("sms low key\n")); 847 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 848 DELAY(200); 849 850 buf[0] = 0x01; 851 buf[1] = 0xc0; 852 ASMC_DPRINTF(("sms high key\n")); 853 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 854 DELAY(200); 855 856 /* 857 * I'm not sure what this key does, but it seems to be 858 * required. 859 */ 860 buf[0] = 0x01; 861 ASMC_DPRINTF(("sms flag key\n")); 862 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 863 DELAY(100); 864 865 sc->sc_sms_intr_works = 0; 866 867 /* 868 * Retry SMS initialization 1000 times 869 * (takes approx. 2 seconds in worst case) 870 */ 871 for (i = 0; i < 1000; i++) { 872 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 873 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 874 error = 0; 875 sc->sc_sms_intr_works = 1; 876 goto out; 877 } 878 buf[0] = ASMC_SMS_INIT1; 879 buf[1] = ASMC_SMS_INIT2; 880 ASMC_DPRINTF(("sms key\n")); 881 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 882 DELAY(50); 883 } 884 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 885 886 out: 887 asmc_sms_calibrate(dev); 888 nosms: 889 sc->sc_nfan = asmc_fan_count(dev); 890 if (sc->sc_nfan > ASMC_MAXFANS) { 891 device_printf(dev, "more than %d fans were detected. Please " 892 "report this.\n", ASMC_MAXFANS); 893 sc->sc_nfan = ASMC_MAXFANS; 894 } 895 896 if (bootverbose) { 897 /* 898 * The number of keys is a 32 bit buffer 899 */ 900 asmc_key_read(dev, ASMC_NKEYS, buf, 4); 901 device_printf(dev, "number of keys: %d\n", ntohl(*(uint32_t*)buf)); 902 } 903 904 #ifdef DEBUG 905 asmc_dumpall(dev); 906 #endif 907 908 return (error); 909 } 910 911 /* 912 * We need to make sure that the SMC acks the byte sent. 913 * Just wait up to (amount * 10) ms. 914 */ 915 static int 916 asmc_wait_ack(device_t dev, uint8_t val, int amount) 917 { 918 struct asmc_softc *sc = device_get_softc(dev); 919 u_int i; 920 921 val = val & ASMC_STATUS_MASK; 922 923 for (i = 0; i < amount; i++) { 924 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 925 return (0); 926 DELAY(10); 927 } 928 929 return (1); 930 } 931 932 /* 933 * We need to make sure that the SMC acks the byte sent. 934 * Just wait up to 100 ms. 935 */ 936 static int 937 asmc_wait(device_t dev, uint8_t val) 938 { 939 #ifdef DEBUG 940 struct asmc_softc *sc; 941 #endif 942 943 if (asmc_wait_ack(dev, val, 1000) == 0) 944 return (0); 945 946 #ifdef DEBUG 947 sc = device_get_softc(dev); 948 #endif 949 val = val & ASMC_STATUS_MASK; 950 951 #ifdef DEBUG 952 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 953 ASMC_CMDPORT_READ(sc)); 954 #endif 955 return (1); 956 } 957 958 /* 959 * Send the given command, retrying up to 10 times if 960 * the acknowledgement fails. 961 */ 962 static int 963 asmc_command(device_t dev, uint8_t command) { 964 int i; 965 struct asmc_softc *sc = device_get_softc(dev); 966 967 for (i=0; i < 10; i++) { 968 ASMC_CMDPORT_WRITE(sc, command); 969 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 970 return (0); 971 } 972 } 973 974 #ifdef DEBUG 975 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 976 ASMC_CMDPORT_READ(sc)); 977 #endif 978 return (1); 979 } 980 981 static int 982 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 983 { 984 int i, error = 1, try = 0; 985 struct asmc_softc *sc = device_get_softc(dev); 986 987 mtx_lock_spin(&sc->sc_mtx); 988 989 begin: 990 if (asmc_command(dev, ASMC_CMDREAD)) 991 goto out; 992 993 for (i = 0; i < 4; i++) { 994 ASMC_DATAPORT_WRITE(sc, key[i]); 995 if (asmc_wait(dev, 0x04)) 996 goto out; 997 } 998 999 ASMC_DATAPORT_WRITE(sc, len); 1000 1001 for (i = 0; i < len; i++) { 1002 if (asmc_wait(dev, 0x05)) 1003 goto out; 1004 buf[i] = ASMC_DATAPORT_READ(sc); 1005 } 1006 1007 error = 0; 1008 out: 1009 if (error) { 1010 if (++try < 10) goto begin; 1011 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1012 __func__, key, try); 1013 } 1014 1015 mtx_unlock_spin(&sc->sc_mtx); 1016 1017 return (error); 1018 } 1019 1020 #ifdef DEBUG 1021 static int 1022 asmc_key_dump(device_t dev, int number) 1023 { 1024 struct asmc_softc *sc = device_get_softc(dev); 1025 char key[5] = { 0 }; 1026 char type[7] = { 0 }; 1027 uint8_t index[4]; 1028 uint8_t v[32]; 1029 uint8_t maxlen; 1030 int i, error = 1, try = 0; 1031 1032 mtx_lock_spin(&sc->sc_mtx); 1033 1034 index[0] = (number >> 24) & 0xff; 1035 index[1] = (number >> 16) & 0xff; 1036 index[2] = (number >> 8) & 0xff; 1037 index[3] = (number) & 0xff; 1038 1039 begin: 1040 if (asmc_command(dev, 0x12)) 1041 goto out; 1042 1043 for (i = 0; i < 4; i++) { 1044 ASMC_DATAPORT_WRITE(sc, index[i]); 1045 if (asmc_wait(dev, 0x04)) 1046 goto out; 1047 } 1048 1049 ASMC_DATAPORT_WRITE(sc, 4); 1050 1051 for (i = 0; i < 4; i++) { 1052 if (asmc_wait(dev, 0x05)) 1053 goto out; 1054 key[i] = ASMC_DATAPORT_READ(sc); 1055 } 1056 1057 /* get type */ 1058 if (asmc_command(dev, 0x13)) 1059 goto out; 1060 1061 for (i = 0; i < 4; i++) { 1062 ASMC_DATAPORT_WRITE(sc, key[i]); 1063 if (asmc_wait(dev, 0x04)) 1064 goto out; 1065 } 1066 1067 ASMC_DATAPORT_WRITE(sc, 6); 1068 1069 for (i = 0; i < 6; i++) { 1070 if (asmc_wait(dev, 0x05)) 1071 goto out; 1072 type[i] = ASMC_DATAPORT_READ(sc); 1073 } 1074 1075 error = 0; 1076 out: 1077 if (error) { 1078 if (++try < 10) goto begin; 1079 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1080 __func__, key, try); 1081 mtx_unlock_spin(&sc->sc_mtx); 1082 } 1083 else { 1084 char buf[1024]; 1085 char buf2[8]; 1086 mtx_unlock_spin(&sc->sc_mtx); 1087 maxlen = type[0]; 1088 type[0] = ' '; 1089 type[5] = 0; 1090 if (maxlen > sizeof(v)) { 1091 device_printf(dev, 1092 "WARNING: cropping maxlen from %d to %zu\n", 1093 maxlen, sizeof(v)); 1094 maxlen = sizeof(v); 1095 } 1096 for (i = 0; i < sizeof(v); i++) { 1097 v[i] = 0; 1098 } 1099 asmc_key_read(dev, key, v, maxlen); 1100 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1101 "(len %d), data", number, key, type, maxlen); 1102 for (i = 0; i < maxlen; i++) { 1103 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1104 strlcat(buf, buf2, sizeof(buf)); 1105 } 1106 strlcat(buf, " \n", sizeof(buf)); 1107 device_printf(dev, "%s", buf); 1108 } 1109 1110 return (error); 1111 } 1112 #endif 1113 1114 static int 1115 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1116 { 1117 int i, error = -1, try = 0; 1118 struct asmc_softc *sc = device_get_softc(dev); 1119 1120 mtx_lock_spin(&sc->sc_mtx); 1121 1122 begin: 1123 ASMC_DPRINTF(("cmd port: cmd write\n")); 1124 if (asmc_command(dev, ASMC_CMDWRITE)) 1125 goto out; 1126 1127 ASMC_DPRINTF(("data port: key\n")); 1128 for (i = 0; i < 4; i++) { 1129 ASMC_DATAPORT_WRITE(sc, key[i]); 1130 if (asmc_wait(dev, 0x04)) 1131 goto out; 1132 } 1133 ASMC_DPRINTF(("data port: length\n")); 1134 ASMC_DATAPORT_WRITE(sc, len); 1135 1136 ASMC_DPRINTF(("data port: buffer\n")); 1137 for (i = 0; i < len; i++) { 1138 if (asmc_wait(dev, 0x04)) 1139 goto out; 1140 ASMC_DATAPORT_WRITE(sc, buf[i]); 1141 } 1142 1143 error = 0; 1144 out: 1145 if (error) { 1146 if (++try < 10) goto begin; 1147 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1148 __func__, key, try); 1149 } 1150 1151 mtx_unlock_spin(&sc->sc_mtx); 1152 1153 return (error); 1154 1155 } 1156 1157 /* 1158 * Fan control functions. 1159 */ 1160 static int 1161 asmc_fan_count(device_t dev) 1162 { 1163 uint8_t buf[1]; 1164 1165 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1166 return (-1); 1167 1168 return (buf[0]); 1169 } 1170 1171 static int 1172 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1173 { 1174 int speed; 1175 uint8_t buf[2]; 1176 char fankey[5]; 1177 1178 snprintf(fankey, sizeof(fankey), key, fan); 1179 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1180 return (-1); 1181 speed = (buf[0] << 6) | (buf[1] >> 2); 1182 1183 return (speed); 1184 } 1185 1186 static char* 1187 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, uint8_t buflen) 1188 { 1189 char fankey[5]; 1190 char* desc; 1191 1192 snprintf(fankey, sizeof(fankey), key, fan); 1193 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1194 return (NULL); 1195 desc = buf+4; 1196 1197 return (desc); 1198 } 1199 1200 static int 1201 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1202 { 1203 uint8_t buf[2]; 1204 char fankey[5]; 1205 1206 speed *= 4; 1207 1208 buf[0] = speed>>8; 1209 buf[1] = speed; 1210 1211 snprintf(fankey, sizeof(fankey), key, fan); 1212 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1213 return (-1); 1214 1215 return (0); 1216 } 1217 1218 static int 1219 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1220 { 1221 device_t dev = (device_t) arg1; 1222 int fan = arg2; 1223 int error; 1224 int32_t v; 1225 1226 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1227 error = sysctl_handle_int(oidp, &v, 0, req); 1228 1229 return (error); 1230 } 1231 1232 static int 1233 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1234 { 1235 uint8_t buf[16]; 1236 device_t dev = (device_t) arg1; 1237 int fan = arg2; 1238 int error = true; 1239 char* desc; 1240 1241 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1242 1243 if (desc != NULL) 1244 error = sysctl_handle_string(oidp, desc, 0, req); 1245 1246 return (error); 1247 } 1248 1249 static int 1250 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1251 { 1252 device_t dev = (device_t) arg1; 1253 int fan = arg2; 1254 int error; 1255 int32_t v; 1256 1257 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1258 error = sysctl_handle_int(oidp, &v, 0, req); 1259 1260 return (error); 1261 } 1262 1263 static int 1264 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1265 { 1266 device_t dev = (device_t) arg1; 1267 int fan = arg2; 1268 int error; 1269 int32_t v; 1270 1271 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1272 error = sysctl_handle_int(oidp, &v, 0, req); 1273 1274 if (error == 0 && req->newptr != NULL) { 1275 unsigned int newspeed = v; 1276 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1277 } 1278 1279 return (error); 1280 } 1281 1282 static int 1283 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1284 { 1285 device_t dev = (device_t) arg1; 1286 int fan = arg2; 1287 int error; 1288 int32_t v; 1289 1290 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1291 error = sysctl_handle_int(oidp, &v, 0, req); 1292 1293 if (error == 0 && req->newptr != NULL) { 1294 unsigned int newspeed = v; 1295 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1296 } 1297 1298 return (error); 1299 } 1300 1301 static int 1302 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1303 { 1304 device_t dev = (device_t) arg1; 1305 int fan = arg2; 1306 int error; 1307 int32_t v; 1308 1309 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1310 error = sysctl_handle_int(oidp, &v, 0, req); 1311 1312 if (error == 0 && req->newptr != NULL) { 1313 unsigned int newspeed = v; 1314 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1315 } 1316 1317 return (error); 1318 } 1319 1320 /* 1321 * Temperature functions. 1322 */ 1323 static int 1324 asmc_temp_getvalue(device_t dev, const char *key) 1325 { 1326 uint8_t buf[2]; 1327 1328 /* 1329 * Check for invalid temperatures. 1330 */ 1331 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1332 return (-1); 1333 1334 return (buf[0]); 1335 } 1336 1337 static int 1338 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1339 { 1340 device_t dev = (device_t) arg1; 1341 struct asmc_softc *sc = device_get_softc(dev); 1342 int error, val; 1343 1344 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1345 error = sysctl_handle_int(oidp, &val, 0, req); 1346 1347 return (error); 1348 } 1349 1350 /* 1351 * Sudden Motion Sensor functions. 1352 */ 1353 static int 1354 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1355 { 1356 uint8_t buf[2]; 1357 int error; 1358 1359 /* no need to do locking here as asmc_key_read() already does it */ 1360 switch (key[3]) { 1361 case 'X': 1362 case 'Y': 1363 case 'Z': 1364 error = asmc_key_read(dev, key, buf, sizeof buf); 1365 break; 1366 default: 1367 device_printf(dev, "%s called with invalid argument %s\n", 1368 __func__, key); 1369 error = 1; 1370 goto out; 1371 } 1372 *val = ((int16_t)buf[0] << 8) | buf[1]; 1373 out: 1374 return (error); 1375 } 1376 1377 static void 1378 asmc_sms_calibrate(device_t dev) 1379 { 1380 struct asmc_softc *sc = device_get_softc(dev); 1381 1382 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1383 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1384 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1385 } 1386 1387 static int 1388 asmc_sms_intrfast(void *arg) 1389 { 1390 uint8_t type; 1391 device_t dev = (device_t) arg; 1392 struct asmc_softc *sc = device_get_softc(dev); 1393 if (!sc->sc_sms_intr_works) 1394 return (FILTER_HANDLED); 1395 1396 mtx_lock_spin(&sc->sc_mtx); 1397 type = ASMC_INTPORT_READ(sc); 1398 mtx_unlock_spin(&sc->sc_mtx); 1399 1400 sc->sc_sms_intrtype = type; 1401 asmc_sms_printintr(dev, type); 1402 1403 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1404 return (FILTER_HANDLED); 1405 } 1406 1407 static void 1408 asmc_sms_printintr(device_t dev, uint8_t type) 1409 { 1410 struct asmc_softc *sc = device_get_softc(dev); 1411 1412 switch (type) { 1413 case ASMC_SMS_INTFF: 1414 device_printf(dev, "WARNING: possible free fall!\n"); 1415 break; 1416 case ASMC_SMS_INTHA: 1417 device_printf(dev, "WARNING: high acceleration detected!\n"); 1418 break; 1419 case ASMC_SMS_INTSH: 1420 device_printf(dev, "WARNING: possible shock!\n"); 1421 break; 1422 case ASMC_ALSL_INT2A: 1423 /* 1424 * This suppresses console and log messages for the ambient 1425 * light sensor for models known to generate this interrupt. 1426 */ 1427 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1428 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1429 break; 1430 /* FALLTHROUGH */ 1431 default: 1432 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1433 } 1434 } 1435 1436 static void 1437 asmc_sms_task(void *arg, int pending) 1438 { 1439 struct asmc_softc *sc = (struct asmc_softc *)arg; 1440 char notify[16]; 1441 int type; 1442 1443 switch (sc->sc_sms_intrtype) { 1444 case ASMC_SMS_INTFF: 1445 type = 2; 1446 break; 1447 case ASMC_SMS_INTHA: 1448 type = 1; 1449 break; 1450 case ASMC_SMS_INTSH: 1451 type = 0; 1452 break; 1453 default: 1454 type = 255; 1455 } 1456 1457 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1458 devctl_notify("ACPI", "asmc", "SMS", notify); 1459 } 1460 1461 static int 1462 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1463 { 1464 device_t dev = (device_t) arg1; 1465 int error; 1466 int16_t val; 1467 int32_t v; 1468 1469 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1470 v = (int32_t) val; 1471 error = sysctl_handle_int(oidp, &v, 0, req); 1472 1473 return (error); 1474 } 1475 1476 static int 1477 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1478 { 1479 device_t dev = (device_t) arg1; 1480 int error; 1481 int16_t val; 1482 int32_t v; 1483 1484 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1485 v = (int32_t) val; 1486 error = sysctl_handle_int(oidp, &v, 0, req); 1487 1488 return (error); 1489 } 1490 1491 static int 1492 asmc_mb_sysctl_sms_z(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_Z, &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_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1508 { 1509 device_t dev = (device_t) arg1; 1510 uint8_t buf[6]; 1511 int error; 1512 int32_t v; 1513 1514 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1515 v = buf[2]; 1516 error = sysctl_handle_int(oidp, &v, 0, req); 1517 1518 return (error); 1519 } 1520 1521 static int 1522 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1523 { 1524 device_t dev = (device_t) arg1; 1525 uint8_t buf[6]; 1526 int error; 1527 int32_t v; 1528 1529 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1530 v = buf[2]; 1531 error = sysctl_handle_int(oidp, &v, 0, req); 1532 1533 return (error); 1534 } 1535 1536 static int 1537 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1538 { 1539 device_t dev = (device_t) arg1; 1540 uint8_t buf[2]; 1541 int error; 1542 int v; 1543 1544 v = light_control; 1545 error = sysctl_handle_int(oidp, &v, 0, req); 1546 1547 if (error == 0 && req->newptr != NULL) { 1548 if (v < 0 || v > 255) 1549 return (EINVAL); 1550 light_control = v; 1551 buf[0] = light_control; 1552 buf[1] = 0x00; 1553 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1554 } 1555 return (error); 1556 } 1557 1558 static int 1559 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1560 { 1561 device_t dev = (device_t) arg1; 1562 uint8_t buf[10]; 1563 int error; 1564 uint32_t v; 1565 1566 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1567 1568 /* 1569 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1570 * 1571 * Extract it out manually here, then shift/clamp it. 1572 */ 1573 v = be32dec(&buf[6]); 1574 1575 /* 1576 * Shift out, clamp at 255; that way it looks like the 1577 * earlier SMC firmware version responses. 1578 */ 1579 v = v >> 8; 1580 if (v > 255) 1581 v = 255; 1582 1583 error = sysctl_handle_int(oidp, &v, 0, req); 1584 1585 return (error); 1586 } 1587