1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2007, 2008 Rui Paulo <[email protected]> 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 #include <sys/param.h> 39 #include <sys/bus.h> 40 #include <sys/conf.h> 41 #include <sys/endian.h> 42 #include <sys/kernel.h> 43 #include <sys/lock.h> 44 #include <sys/malloc.h> 45 #include <sys/module.h> 46 #include <sys/mutex.h> 47 #include <sys/sysctl.h> 48 #include <sys/systm.h> 49 #include <sys/taskqueue.h> 50 #include <sys/rman.h> 51 52 #include <machine/resource.h> 53 54 #include <contrib/dev/acpica/include/acpi.h> 55 56 #include <dev/acpica/acpivar.h> 57 #include <dev/asmc/asmcvar.h> 58 59 /* 60 * Device interface. 61 */ 62 static int asmc_probe(device_t dev); 63 static int asmc_attach(device_t dev); 64 static int asmc_detach(device_t dev); 65 static int asmc_resume(device_t dev); 66 67 /* 68 * SMC functions. 69 */ 70 static int asmc_init(device_t dev); 71 static int asmc_command(device_t dev, uint8_t command); 72 static int asmc_wait(device_t dev, uint8_t val); 73 static int asmc_wait_ack(device_t dev, uint8_t val, int amount); 74 static int asmc_key_write(device_t dev, const char *key, uint8_t *buf, 75 uint8_t len); 76 static int asmc_key_read(device_t dev, const char *key, uint8_t *buf, 77 uint8_t); 78 static int asmc_fan_count(device_t dev); 79 static int asmc_fan_getvalue(device_t dev, const char *key, int fan); 80 static int asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed); 81 static int asmc_temp_getvalue(device_t dev, const char *key); 82 static int asmc_sms_read(device_t, const char *key, int16_t *val); 83 static void asmc_sms_calibrate(device_t dev); 84 static int asmc_sms_intrfast(void *arg); 85 static void asmc_sms_printintr(device_t dev, uint8_t); 86 static void asmc_sms_task(void *arg, int pending); 87 #ifdef DEBUG 88 void asmc_dumpall(device_t); 89 static int asmc_key_dump(device_t, int); 90 #endif 91 92 /* 93 * Model functions. 94 */ 95 static int asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS); 96 static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS); 97 static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS); 98 static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS); 99 static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS); 100 static int asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS); 101 static int asmc_temp_sysctl(SYSCTL_HANDLER_ARGS); 102 static int asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS); 103 static int asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS); 104 static int asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS); 105 static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS); 106 static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS); 107 static int asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS); 108 static int asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS); 109 110 struct asmc_model { 111 const char *smc_model; /* smbios.system.product env var. */ 112 const char *smc_desc; /* driver description */ 113 114 /* Helper functions */ 115 int (*smc_sms_x)(SYSCTL_HANDLER_ARGS); 116 int (*smc_sms_y)(SYSCTL_HANDLER_ARGS); 117 int (*smc_sms_z)(SYSCTL_HANDLER_ARGS); 118 int (*smc_fan_id)(SYSCTL_HANDLER_ARGS); 119 int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS); 120 int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS); 121 int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS); 122 int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS); 123 int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS); 124 int (*smc_light_left)(SYSCTL_HANDLER_ARGS); 125 int (*smc_light_right)(SYSCTL_HANDLER_ARGS); 126 int (*smc_light_control)(SYSCTL_HANDLER_ARGS); 127 128 const char *smc_temps[ASMC_TEMP_MAX]; 129 const char *smc_tempnames[ASMC_TEMP_MAX]; 130 const char *smc_tempdescs[ASMC_TEMP_MAX]; 131 }; 132 133 static const struct asmc_model *asmc_match(device_t dev); 134 135 #define ASMC_SMS_FUNCS asmc_mb_sysctl_sms_x, asmc_mb_sysctl_sms_y, \ 136 asmc_mb_sysctl_sms_z 137 138 #define ASMC_SMS_FUNCS_DISABLED NULL,NULL,NULL 139 140 #define ASMC_FAN_FUNCS asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, asmc_mb_sysctl_fansafespeed, \ 141 asmc_mb_sysctl_fanminspeed, \ 142 asmc_mb_sysctl_fanmaxspeed, \ 143 asmc_mb_sysctl_fantargetspeed 144 145 #define ASMC_FAN_FUNCS2 asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, NULL, \ 146 asmc_mb_sysctl_fanminspeed, \ 147 asmc_mb_sysctl_fanmaxspeed, \ 148 asmc_mb_sysctl_fantargetspeed 149 150 #define ASMC_LIGHT_FUNCS asmc_mbp_sysctl_light_left, \ 151 asmc_mbp_sysctl_light_right, \ 152 asmc_mbp_sysctl_light_control 153 154 #define ASMC_LIGHT_FUNCS_10BYTE \ 155 asmc_mbp_sysctl_light_left_10byte, \ 156 NULL, \ 157 asmc_mbp_sysctl_light_control 158 159 #define ASMC_LIGHT_FUNCS_DISABLED NULL, NULL, NULL 160 161 static const struct asmc_model asmc_models[] = { 162 { 163 "MacBook1,1", "Apple SMC MacBook Core Duo", 164 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 165 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 166 }, 167 168 { 169 "MacBook2,1", "Apple SMC MacBook Core 2 Duo", 170 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 171 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 172 }, 173 174 { 175 "MacBook3,1", "Apple SMC MacBook Core 2 Duo", 176 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 177 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS 178 }, 179 180 { 181 "MacBook7,1", "Apple SMC MacBook Core 2 Duo (mid 2010)", 182 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS_DISABLED, 183 ASMC_MB71_TEMPS, ASMC_MB71_TEMPNAMES, ASMC_MB71_TEMPDESCS 184 }, 185 186 { 187 "MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)", 188 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 189 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 190 }, 191 192 { 193 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)", 194 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 195 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 196 }, 197 198 { 199 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)", 200 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 201 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 202 }, 203 204 { 205 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)", 206 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 207 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 208 }, 209 210 { 211 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)", 212 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 213 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 214 }, 215 216 { 217 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)", 218 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 219 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 220 }, 221 222 { 223 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)", 224 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 225 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS 226 }, 227 228 { 229 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)", 230 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 231 ASMC_MBP51_TEMPS, ASMC_MBP51_TEMPNAMES, ASMC_MBP51_TEMPDESCS 232 }, 233 234 { 235 "MacBookPro5,5", "Apple SMC MacBook Pro Core 2 Duo (Mid 2009)", 236 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 237 ASMC_MBP55_TEMPS, ASMC_MBP55_TEMPNAMES, ASMC_MBP55_TEMPDESCS 238 }, 239 240 { 241 "MacBookPro6,2", "Apple SMC MacBook Pro (Mid 2010, 15-inch)", 242 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 243 ASMC_MBP62_TEMPS, ASMC_MBP62_TEMPNAMES, ASMC_MBP62_TEMPDESCS 244 }, 245 246 { 247 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)", 248 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 249 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS 250 }, 251 252 { 253 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)", 254 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 255 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS 256 }, 257 258 { 259 "MacBookPro9,1", "Apple SMC MacBook Pro (mid 2012, 15-inch)", 260 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 261 ASMC_MBP91_TEMPS, ASMC_MBP91_TEMPNAMES, ASMC_MBP91_TEMPDESCS 262 }, 263 264 { 265 "MacBookPro9,2", "Apple SMC MacBook Pro (mid 2012, 13-inch)", 266 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 267 ASMC_MBP92_TEMPS, ASMC_MBP92_TEMPNAMES, ASMC_MBP92_TEMPDESCS 268 }, 269 270 { 271 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 272 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 273 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS 274 }, 275 276 { 277 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 278 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 279 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS 280 }, 281 282 { 283 "MacBookPro11,4", "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch)", 284 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 285 ASMC_MBP114_TEMPS, ASMC_MBP114_TEMPNAMES, ASMC_MBP114_TEMPDESCS 286 }, 287 288 /* The Mac Mini has no SMS */ 289 { 290 "Macmini1,1", "Apple SMC Mac Mini", 291 NULL, NULL, NULL, 292 ASMC_FAN_FUNCS, 293 NULL, NULL, NULL, 294 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS 295 }, 296 297 /* The Mac Mini 2,1 has no SMS */ 298 { 299 "Macmini2,1", "Apple SMC Mac Mini 2,1", 300 ASMC_SMS_FUNCS_DISABLED, 301 ASMC_FAN_FUNCS, 302 ASMC_LIGHT_FUNCS_DISABLED, 303 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS 304 }, 305 306 /* The Mac Mini 3,1 has no SMS */ 307 { 308 "Macmini3,1", "Apple SMC Mac Mini 3,1", 309 NULL, NULL, NULL, 310 ASMC_FAN_FUNCS, 311 NULL, NULL, NULL, 312 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS 313 }, 314 315 /* The Mac Mini 4,1 (Mid-2010) has no SMS */ 316 { 317 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)", 318 ASMC_SMS_FUNCS_DISABLED, 319 ASMC_FAN_FUNCS, 320 ASMC_LIGHT_FUNCS_DISABLED, 321 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS 322 }, 323 324 /* The Mac Mini 5,1 has no SMS */ 325 /* - same sensors as Mac Mini 5,2 */ 326 { 327 "Macmini5,1", "Apple SMC Mac Mini 5,1", 328 NULL, NULL, NULL, 329 ASMC_FAN_FUNCS2, 330 NULL, NULL, NULL, 331 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 332 }, 333 334 /* The Mac Mini 5,2 has no SMS */ 335 { 336 "Macmini5,2", "Apple SMC Mac Mini 5,2", 337 NULL, NULL, NULL, 338 ASMC_FAN_FUNCS2, 339 NULL, NULL, NULL, 340 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 341 }, 342 343 /* The Mac Mini 5,3 has no SMS */ 344 /* - same sensors as Mac Mini 5,2 */ 345 { 346 "Macmini5,3", "Apple SMC Mac Mini 5,3", 347 NULL, NULL, NULL, 348 ASMC_FAN_FUNCS2, 349 NULL, NULL, NULL, 350 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 351 }, 352 353 /* The Mac Mini 7,1 has no SMS */ 354 { 355 "Macmini7,1", "Apple SMC Mac Mini 7,1", 356 NULL, NULL, NULL, 357 ASMC_FAN_FUNCS2, 358 NULL, NULL, NULL, 359 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS 360 }, 361 362 /* Idem for the Mac Pro "Quad Core" (original) */ 363 { 364 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)", 365 NULL, NULL, NULL, 366 ASMC_FAN_FUNCS, 367 NULL, NULL, NULL, 368 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS 369 }, 370 371 /* Idem for the Mac Pro (8-core) */ 372 { 373 "MacPro2", "Apple SMC Mac Pro (8-core)", 374 NULL, NULL, NULL, 375 ASMC_FAN_FUNCS, 376 NULL, NULL, NULL, 377 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 378 }, 379 380 /* Idem for the MacPro 2010*/ 381 { 382 "MacPro5,1", "Apple SMC MacPro (2010)", 383 NULL, NULL, NULL, 384 ASMC_FAN_FUNCS, 385 NULL, NULL, NULL, 386 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 387 }, 388 389 /* Idem for the Mac Pro 2013 (cylinder) */ 390 { 391 "MacPro6,1", "Apple SMC Mac Pro (2013)", 392 ASMC_SMS_FUNCS_DISABLED, 393 ASMC_FAN_FUNCS2, 394 ASMC_LIGHT_FUNCS_DISABLED, 395 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 396 }, 397 398 { 399 "MacBookAir1,1", "Apple SMC MacBook Air", 400 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 401 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 402 }, 403 404 { 405 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 406 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 407 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 408 }, 409 410 { 411 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 412 ASMC_SMS_FUNCS_DISABLED, 413 ASMC_FAN_FUNCS2, 414 ASMC_LIGHT_FUNCS, 415 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 416 }, 417 418 { 419 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 420 ASMC_SMS_FUNCS_DISABLED, 421 ASMC_FAN_FUNCS2, 422 ASMC_LIGHT_FUNCS, 423 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 424 }, 425 426 { 427 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 428 ASMC_SMS_FUNCS_DISABLED, 429 ASMC_FAN_FUNCS2, 430 ASMC_LIGHT_FUNCS, 431 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 432 }, 433 434 { 435 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 436 ASMC_SMS_FUNCS_DISABLED, 437 ASMC_FAN_FUNCS2, 438 ASMC_LIGHT_FUNCS, 439 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 440 }, 441 { 442 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 443 ASMC_SMS_FUNCS_DISABLED, 444 ASMC_FAN_FUNCS2, 445 ASMC_LIGHT_FUNCS_10BYTE, 446 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 447 }, 448 { 449 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)", 450 ASMC_SMS_FUNCS_DISABLED, 451 ASMC_FAN_FUNCS2, 452 ASMC_LIGHT_FUNCS_10BYTE, 453 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 454 }, 455 { 456 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 457 ASMC_SMS_FUNCS_DISABLED, 458 ASMC_FAN_FUNCS2, 459 ASMC_LIGHT_FUNCS, 460 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 461 }, 462 { 463 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)", 464 ASMC_SMS_FUNCS_DISABLED, 465 ASMC_FAN_FUNCS2, 466 ASMC_LIGHT_FUNCS, 467 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 468 }, 469 { NULL, NULL } 470 }; 471 472 #undef ASMC_SMS_FUNCS 473 #undef ASMC_SMS_FUNCS_DISABLED 474 #undef ASMC_FAN_FUNCS 475 #undef ASMC_FAN_FUNCS2 476 #undef ASMC_LIGHT_FUNCS 477 478 /* 479 * Driver methods. 480 */ 481 static device_method_t asmc_methods[] = { 482 DEVMETHOD(device_probe, asmc_probe), 483 DEVMETHOD(device_attach, asmc_attach), 484 DEVMETHOD(device_detach, asmc_detach), 485 DEVMETHOD(device_resume, asmc_resume), 486 { 0, 0 } 487 }; 488 489 static driver_t asmc_driver = { 490 "asmc", 491 asmc_methods, 492 sizeof(struct asmc_softc) 493 }; 494 495 /* 496 * Debugging 497 */ 498 #define _COMPONENT ACPI_OEM 499 ACPI_MODULE_NAME("ASMC") 500 #ifdef DEBUG 501 #define ASMC_DPRINTF(str) device_printf(dev, str) 502 #else 503 #define ASMC_DPRINTF(str) 504 #endif 505 506 /* NB: can't be const */ 507 static char *asmc_ids[] = { "APP0001", NULL }; 508 509 static unsigned int light_control = 0; 510 511 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 512 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 513 514 static const struct asmc_model * 515 asmc_match(device_t dev) 516 { 517 int i; 518 char *model; 519 520 model = kern_getenv("smbios.system.product"); 521 if (model == NULL) 522 return (NULL); 523 524 for (i = 0; asmc_models[i].smc_model; i++) { 525 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 526 freeenv(model); 527 return (&asmc_models[i]); 528 } 529 } 530 freeenv(model); 531 532 return (NULL); 533 } 534 535 static int 536 asmc_probe(device_t dev) 537 { 538 const struct asmc_model *model; 539 int rv; 540 541 if (resource_disabled("asmc", 0)) 542 return (ENXIO); 543 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 544 if (rv > 0) 545 return (rv); 546 547 model = asmc_match(dev); 548 if (!model) { 549 device_printf(dev, "model not recognized\n"); 550 return (ENXIO); 551 } 552 device_set_desc(dev, model->smc_desc); 553 554 return (rv); 555 } 556 557 static int 558 asmc_attach(device_t dev) 559 { 560 int i, j; 561 int ret; 562 char name[2]; 563 struct asmc_softc *sc = device_get_softc(dev); 564 struct sysctl_ctx_list *sysctlctx; 565 struct sysctl_oid *sysctlnode; 566 const struct asmc_model *model; 567 568 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 569 &sc->sc_rid_port, RF_ACTIVE); 570 if (sc->sc_ioport == NULL) { 571 device_printf(dev, "unable to allocate IO port\n"); 572 return (ENOMEM); 573 } 574 575 sysctlctx = device_get_sysctl_ctx(dev); 576 sysctlnode = device_get_sysctl_tree(dev); 577 578 model = asmc_match(dev); 579 580 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 581 582 sc->sc_model = model; 583 asmc_init(dev); 584 585 /* 586 * dev.asmc.n.fan.* tree. 587 */ 588 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 589 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 590 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 591 592 for (i = 1; i <= sc->sc_nfan; i++) { 593 j = i - 1; 594 name[0] = '0' + j; 595 name[1] = 0; 596 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 597 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 598 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 599 "Fan Subtree"); 600 601 SYSCTL_ADD_PROC(sysctlctx, 602 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 603 OID_AUTO, "id", 604 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 605 dev, j, model->smc_fan_id, "I", 606 "Fan ID"); 607 608 SYSCTL_ADD_PROC(sysctlctx, 609 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 610 OID_AUTO, "speed", 611 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 612 dev, j, model->smc_fan_speed, "I", 613 "Fan speed in RPM"); 614 615 SYSCTL_ADD_PROC(sysctlctx, 616 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 617 OID_AUTO, "safespeed", 618 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 619 dev, j, model->smc_fan_safespeed, "I", 620 "Fan safe speed in RPM"); 621 622 SYSCTL_ADD_PROC(sysctlctx, 623 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 624 OID_AUTO, "minspeed", 625 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 626 dev, j, model->smc_fan_minspeed, "I", 627 "Fan minimum speed in RPM"); 628 629 SYSCTL_ADD_PROC(sysctlctx, 630 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 631 OID_AUTO, "maxspeed", 632 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 633 dev, j, model->smc_fan_maxspeed, "I", 634 "Fan maximum speed in RPM"); 635 636 SYSCTL_ADD_PROC(sysctlctx, 637 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 638 OID_AUTO, "targetspeed", 639 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 640 dev, j, model->smc_fan_targetspeed, "I", 641 "Fan target speed in RPM"); 642 } 643 644 /* 645 * dev.asmc.n.temp tree. 646 */ 647 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 648 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 649 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 650 651 for (i = 0; model->smc_temps[i]; i++) { 652 SYSCTL_ADD_PROC(sysctlctx, 653 SYSCTL_CHILDREN(sc->sc_temp_tree), 654 OID_AUTO, model->smc_tempnames[i], 655 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 656 dev, i, asmc_temp_sysctl, "I", 657 model->smc_tempdescs[i]); 658 } 659 660 /* 661 * dev.asmc.n.light 662 */ 663 if (model->smc_light_left) { 664 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 665 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 666 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 667 "Keyboard backlight sensors"); 668 669 SYSCTL_ADD_PROC(sysctlctx, 670 SYSCTL_CHILDREN(sc->sc_light_tree), 671 OID_AUTO, "left", 672 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 673 dev, 0, model->smc_light_left, "I", 674 "Keyboard backlight left sensor"); 675 676 SYSCTL_ADD_PROC(sysctlctx, 677 SYSCTL_CHILDREN(sc->sc_light_tree), 678 OID_AUTO, "right", 679 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 680 dev, 0, model->smc_light_right, "I", 681 "Keyboard backlight right sensor"); 682 683 SYSCTL_ADD_PROC(sysctlctx, 684 SYSCTL_CHILDREN(sc->sc_light_tree), 685 OID_AUTO, "control", 686 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 687 CTLFLAG_NEEDGIANT, dev, 0, 688 model->smc_light_control, "I", 689 "Keyboard backlight brightness control"); 690 } 691 692 if (model->smc_sms_x == NULL) 693 goto nosms; 694 695 /* 696 * dev.asmc.n.sms tree. 697 */ 698 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 699 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 700 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 701 702 SYSCTL_ADD_PROC(sysctlctx, 703 SYSCTL_CHILDREN(sc->sc_sms_tree), 704 OID_AUTO, "x", 705 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 706 dev, 0, model->smc_sms_x, "I", 707 "Sudden Motion Sensor X value"); 708 709 SYSCTL_ADD_PROC(sysctlctx, 710 SYSCTL_CHILDREN(sc->sc_sms_tree), 711 OID_AUTO, "y", 712 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 713 dev, 0, model->smc_sms_y, "I", 714 "Sudden Motion Sensor Y value"); 715 716 SYSCTL_ADD_PROC(sysctlctx, 717 SYSCTL_CHILDREN(sc->sc_sms_tree), 718 OID_AUTO, "z", 719 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 720 dev, 0, model->smc_sms_z, "I", 721 "Sudden Motion Sensor Z value"); 722 723 /* 724 * Need a taskqueue to send devctl_notify() events 725 * when the SMS interrupt us. 726 * 727 * PI_REALTIME is used due to the sensitivity of the 728 * interrupt. An interrupt from the SMS means that the 729 * disk heads should be turned off as quickly as possible. 730 * 731 * We only need to do this for the non INTR_FILTER case. 732 */ 733 sc->sc_sms_tq = NULL; 734 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 735 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 736 taskqueue_thread_enqueue, &sc->sc_sms_tq); 737 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 738 device_get_nameunit(dev)); 739 /* 740 * Allocate an IRQ for the SMS. 741 */ 742 sc->sc_rid_irq = 0; 743 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 744 &sc->sc_rid_irq, RF_ACTIVE); 745 if (sc->sc_irq == NULL) { 746 device_printf(dev, "unable to allocate IRQ resource\n"); 747 ret = ENXIO; 748 goto err2; 749 } 750 751 ret = bus_setup_intr(dev, sc->sc_irq, 752 INTR_TYPE_MISC | INTR_MPSAFE, 753 asmc_sms_intrfast, NULL, 754 dev, &sc->sc_cookie); 755 756 if (ret) { 757 device_printf(dev, "unable to setup SMS IRQ\n"); 758 goto err1; 759 } 760 nosms: 761 return (0); 762 err1: 763 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 764 err2: 765 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 766 sc->sc_ioport); 767 mtx_destroy(&sc->sc_mtx); 768 if (sc->sc_sms_tq) 769 taskqueue_free(sc->sc_sms_tq); 770 771 return (ret); 772 } 773 774 static int 775 asmc_detach(device_t dev) 776 { 777 struct asmc_softc *sc = device_get_softc(dev); 778 779 if (sc->sc_sms_tq) { 780 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 781 taskqueue_free(sc->sc_sms_tq); 782 } 783 if (sc->sc_cookie) 784 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 785 if (sc->sc_irq) 786 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 787 sc->sc_irq); 788 if (sc->sc_ioport) 789 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 790 sc->sc_ioport); 791 mtx_destroy(&sc->sc_mtx); 792 793 return (0); 794 } 795 796 static int 797 asmc_resume(device_t dev) 798 { 799 uint8_t buf[2]; 800 buf[0] = light_control; 801 buf[1] = 0x00; 802 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 803 return (0); 804 } 805 806 #ifdef DEBUG 807 void asmc_dumpall(device_t dev) 808 { 809 int i; 810 811 /* XXX magic number */ 812 for (i=0; i < 0x100; i++) 813 asmc_key_dump(dev, i); 814 } 815 #endif 816 817 static int 818 asmc_init(device_t dev) 819 { 820 struct asmc_softc *sc = device_get_softc(dev); 821 int i, error = 1; 822 uint8_t buf[4]; 823 824 if (sc->sc_model->smc_sms_x == NULL) 825 goto nosms; 826 827 /* 828 * We are ready to receive interrupts from the SMS. 829 */ 830 buf[0] = 0x01; 831 ASMC_DPRINTF(("intok key\n")); 832 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 833 DELAY(50); 834 835 /* 836 * Initiate the polling intervals. 837 */ 838 buf[0] = 20; /* msecs */ 839 ASMC_DPRINTF(("low int key\n")); 840 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 841 DELAY(200); 842 843 buf[0] = 20; /* msecs */ 844 ASMC_DPRINTF(("high int key\n")); 845 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 846 DELAY(200); 847 848 buf[0] = 0x00; 849 buf[1] = 0x60; 850 ASMC_DPRINTF(("sms low key\n")); 851 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 852 DELAY(200); 853 854 buf[0] = 0x01; 855 buf[1] = 0xc0; 856 ASMC_DPRINTF(("sms high key\n")); 857 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 858 DELAY(200); 859 860 /* 861 * I'm not sure what this key does, but it seems to be 862 * required. 863 */ 864 buf[0] = 0x01; 865 ASMC_DPRINTF(("sms flag key\n")); 866 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 867 DELAY(100); 868 869 sc->sc_sms_intr_works = 0; 870 871 /* 872 * Retry SMS initialization 1000 times 873 * (takes approx. 2 seconds in worst case) 874 */ 875 for (i = 0; i < 1000; i++) { 876 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 877 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 878 error = 0; 879 sc->sc_sms_intr_works = 1; 880 goto out; 881 } 882 buf[0] = ASMC_SMS_INIT1; 883 buf[1] = ASMC_SMS_INIT2; 884 ASMC_DPRINTF(("sms key\n")); 885 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 886 DELAY(50); 887 } 888 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 889 890 out: 891 asmc_sms_calibrate(dev); 892 nosms: 893 sc->sc_nfan = asmc_fan_count(dev); 894 if (sc->sc_nfan > ASMC_MAXFANS) { 895 device_printf(dev, "more than %d fans were detected. Please " 896 "report this.\n", ASMC_MAXFANS); 897 sc->sc_nfan = ASMC_MAXFANS; 898 } 899 900 if (bootverbose) { 901 /* 902 * The number of keys is a 32 bit buffer 903 */ 904 asmc_key_read(dev, ASMC_NKEYS, buf, 4); 905 device_printf(dev, "number of keys: %d\n", ntohl(*(uint32_t*)buf)); 906 } 907 908 #ifdef DEBUG 909 asmc_dumpall(dev); 910 #endif 911 912 return (error); 913 } 914 915 /* 916 * We need to make sure that the SMC acks the byte sent. 917 * Just wait up to (amount * 10) ms. 918 */ 919 static int 920 asmc_wait_ack(device_t dev, uint8_t val, int amount) 921 { 922 struct asmc_softc *sc = device_get_softc(dev); 923 u_int i; 924 925 val = val & ASMC_STATUS_MASK; 926 927 for (i = 0; i < amount; i++) { 928 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 929 return (0); 930 DELAY(10); 931 } 932 933 return (1); 934 } 935 936 /* 937 * We need to make sure that the SMC acks the byte sent. 938 * Just wait up to 100 ms. 939 */ 940 static int 941 asmc_wait(device_t dev, uint8_t val) 942 { 943 #ifdef DEBUG 944 struct asmc_softc *sc; 945 #endif 946 947 if (asmc_wait_ack(dev, val, 1000) == 0) 948 return (0); 949 950 #ifdef DEBUG 951 sc = device_get_softc(dev); 952 #endif 953 val = val & ASMC_STATUS_MASK; 954 955 #ifdef DEBUG 956 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 957 ASMC_CMDPORT_READ(sc)); 958 #endif 959 return (1); 960 } 961 962 /* 963 * Send the given command, retrying up to 10 times if 964 * the acknowledgement fails. 965 */ 966 static int 967 asmc_command(device_t dev, uint8_t command) { 968 int i; 969 struct asmc_softc *sc = device_get_softc(dev); 970 971 for (i=0; i < 10; i++) { 972 ASMC_CMDPORT_WRITE(sc, command); 973 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 974 return (0); 975 } 976 } 977 978 #ifdef DEBUG 979 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 980 ASMC_CMDPORT_READ(sc)); 981 #endif 982 return (1); 983 } 984 985 static int 986 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 987 { 988 int i, error = 1, try = 0; 989 struct asmc_softc *sc = device_get_softc(dev); 990 991 mtx_lock_spin(&sc->sc_mtx); 992 993 begin: 994 if (asmc_command(dev, ASMC_CMDREAD)) 995 goto out; 996 997 for (i = 0; i < 4; i++) { 998 ASMC_DATAPORT_WRITE(sc, key[i]); 999 if (asmc_wait(dev, 0x04)) 1000 goto out; 1001 } 1002 1003 ASMC_DATAPORT_WRITE(sc, len); 1004 1005 for (i = 0; i < len; i++) { 1006 if (asmc_wait(dev, 0x05)) 1007 goto out; 1008 buf[i] = ASMC_DATAPORT_READ(sc); 1009 } 1010 1011 error = 0; 1012 out: 1013 if (error) { 1014 if (++try < 10) goto begin; 1015 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1016 __func__, key, try); 1017 } 1018 1019 mtx_unlock_spin(&sc->sc_mtx); 1020 1021 return (error); 1022 } 1023 1024 #ifdef DEBUG 1025 static int 1026 asmc_key_dump(device_t dev, int number) 1027 { 1028 struct asmc_softc *sc = device_get_softc(dev); 1029 char key[5] = { 0 }; 1030 char type[7] = { 0 }; 1031 uint8_t index[4]; 1032 uint8_t v[32]; 1033 uint8_t maxlen; 1034 int i, error = 1, try = 0; 1035 1036 mtx_lock_spin(&sc->sc_mtx); 1037 1038 index[0] = (number >> 24) & 0xff; 1039 index[1] = (number >> 16) & 0xff; 1040 index[2] = (number >> 8) & 0xff; 1041 index[3] = (number) & 0xff; 1042 1043 begin: 1044 if (asmc_command(dev, 0x12)) 1045 goto out; 1046 1047 for (i = 0; i < 4; i++) { 1048 ASMC_DATAPORT_WRITE(sc, index[i]); 1049 if (asmc_wait(dev, 0x04)) 1050 goto out; 1051 } 1052 1053 ASMC_DATAPORT_WRITE(sc, 4); 1054 1055 for (i = 0; i < 4; i++) { 1056 if (asmc_wait(dev, 0x05)) 1057 goto out; 1058 key[i] = ASMC_DATAPORT_READ(sc); 1059 } 1060 1061 /* get type */ 1062 if (asmc_command(dev, 0x13)) 1063 goto out; 1064 1065 for (i = 0; i < 4; i++) { 1066 ASMC_DATAPORT_WRITE(sc, key[i]); 1067 if (asmc_wait(dev, 0x04)) 1068 goto out; 1069 } 1070 1071 ASMC_DATAPORT_WRITE(sc, 6); 1072 1073 for (i = 0; i < 6; i++) { 1074 if (asmc_wait(dev, 0x05)) 1075 goto out; 1076 type[i] = ASMC_DATAPORT_READ(sc); 1077 } 1078 1079 error = 0; 1080 out: 1081 if (error) { 1082 if (++try < 10) goto begin; 1083 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1084 __func__, key, try); 1085 mtx_unlock_spin(&sc->sc_mtx); 1086 } 1087 else { 1088 char buf[1024]; 1089 char buf2[8]; 1090 mtx_unlock_spin(&sc->sc_mtx); 1091 maxlen = type[0]; 1092 type[0] = ' '; 1093 type[5] = 0; 1094 if (maxlen > sizeof(v)) { 1095 device_printf(dev, 1096 "WARNING: cropping maxlen from %d to %zu\n", 1097 maxlen, sizeof(v)); 1098 maxlen = sizeof(v); 1099 } 1100 for (i = 0; i < sizeof(v); i++) { 1101 v[i] = 0; 1102 } 1103 asmc_key_read(dev, key, v, maxlen); 1104 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1105 "(len %d), data", number, key, type, maxlen); 1106 for (i = 0; i < maxlen; i++) { 1107 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1108 strlcat(buf, buf2, sizeof(buf)); 1109 } 1110 strlcat(buf, " \n", sizeof(buf)); 1111 device_printf(dev, "%s", buf); 1112 } 1113 1114 return (error); 1115 } 1116 #endif 1117 1118 static int 1119 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1120 { 1121 int i, error = -1, try = 0; 1122 struct asmc_softc *sc = device_get_softc(dev); 1123 1124 mtx_lock_spin(&sc->sc_mtx); 1125 1126 begin: 1127 ASMC_DPRINTF(("cmd port: cmd write\n")); 1128 if (asmc_command(dev, ASMC_CMDWRITE)) 1129 goto out; 1130 1131 ASMC_DPRINTF(("data port: key\n")); 1132 for (i = 0; i < 4; i++) { 1133 ASMC_DATAPORT_WRITE(sc, key[i]); 1134 if (asmc_wait(dev, 0x04)) 1135 goto out; 1136 } 1137 ASMC_DPRINTF(("data port: length\n")); 1138 ASMC_DATAPORT_WRITE(sc, len); 1139 1140 ASMC_DPRINTF(("data port: buffer\n")); 1141 for (i = 0; i < len; i++) { 1142 if (asmc_wait(dev, 0x04)) 1143 goto out; 1144 ASMC_DATAPORT_WRITE(sc, buf[i]); 1145 } 1146 1147 error = 0; 1148 out: 1149 if (error) { 1150 if (++try < 10) goto begin; 1151 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1152 __func__, key, try); 1153 } 1154 1155 mtx_unlock_spin(&sc->sc_mtx); 1156 1157 return (error); 1158 1159 } 1160 1161 /* 1162 * Fan control functions. 1163 */ 1164 static int 1165 asmc_fan_count(device_t dev) 1166 { 1167 uint8_t buf[1]; 1168 1169 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1170 return (-1); 1171 1172 return (buf[0]); 1173 } 1174 1175 static int 1176 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1177 { 1178 int speed; 1179 uint8_t buf[2]; 1180 char fankey[5]; 1181 1182 snprintf(fankey, sizeof(fankey), key, fan); 1183 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1184 return (-1); 1185 speed = (buf[0] << 6) | (buf[1] >> 2); 1186 1187 return (speed); 1188 } 1189 1190 static char* 1191 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, uint8_t buflen) 1192 { 1193 char fankey[5]; 1194 char* desc; 1195 1196 snprintf(fankey, sizeof(fankey), key, fan); 1197 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1198 return (NULL); 1199 desc = buf+4; 1200 1201 return (desc); 1202 } 1203 1204 static int 1205 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1206 { 1207 uint8_t buf[2]; 1208 char fankey[5]; 1209 1210 speed *= 4; 1211 1212 buf[0] = speed>>8; 1213 buf[1] = speed; 1214 1215 snprintf(fankey, sizeof(fankey), key, fan); 1216 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1217 return (-1); 1218 1219 return (0); 1220 } 1221 1222 static int 1223 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1224 { 1225 device_t dev = (device_t) arg1; 1226 int fan = arg2; 1227 int error; 1228 int32_t v; 1229 1230 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1231 error = sysctl_handle_int(oidp, &v, 0, req); 1232 1233 return (error); 1234 } 1235 1236 static int 1237 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1238 { 1239 uint8_t buf[16]; 1240 device_t dev = (device_t) arg1; 1241 int fan = arg2; 1242 int error = true; 1243 char* desc; 1244 1245 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1246 1247 if (desc != NULL) 1248 error = sysctl_handle_string(oidp, desc, 0, req); 1249 1250 return (error); 1251 } 1252 1253 static int 1254 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1255 { 1256 device_t dev = (device_t) arg1; 1257 int fan = arg2; 1258 int error; 1259 int32_t v; 1260 1261 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1262 error = sysctl_handle_int(oidp, &v, 0, req); 1263 1264 return (error); 1265 } 1266 1267 static int 1268 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1269 { 1270 device_t dev = (device_t) arg1; 1271 int fan = arg2; 1272 int error; 1273 int32_t v; 1274 1275 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1276 error = sysctl_handle_int(oidp, &v, 0, req); 1277 1278 if (error == 0 && req->newptr != NULL) { 1279 unsigned int newspeed = v; 1280 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1281 } 1282 1283 return (error); 1284 } 1285 1286 static int 1287 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1288 { 1289 device_t dev = (device_t) arg1; 1290 int fan = arg2; 1291 int error; 1292 int32_t v; 1293 1294 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1295 error = sysctl_handle_int(oidp, &v, 0, req); 1296 1297 if (error == 0 && req->newptr != NULL) { 1298 unsigned int newspeed = v; 1299 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1300 } 1301 1302 return (error); 1303 } 1304 1305 static int 1306 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1307 { 1308 device_t dev = (device_t) arg1; 1309 int fan = arg2; 1310 int error; 1311 int32_t v; 1312 1313 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1314 error = sysctl_handle_int(oidp, &v, 0, req); 1315 1316 if (error == 0 && req->newptr != NULL) { 1317 unsigned int newspeed = v; 1318 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1319 } 1320 1321 return (error); 1322 } 1323 1324 /* 1325 * Temperature functions. 1326 */ 1327 static int 1328 asmc_temp_getvalue(device_t dev, const char *key) 1329 { 1330 uint8_t buf[2]; 1331 1332 /* 1333 * Check for invalid temperatures. 1334 */ 1335 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1336 return (-1); 1337 1338 return (buf[0]); 1339 } 1340 1341 static int 1342 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1343 { 1344 device_t dev = (device_t) arg1; 1345 struct asmc_softc *sc = device_get_softc(dev); 1346 int error, val; 1347 1348 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1349 error = sysctl_handle_int(oidp, &val, 0, req); 1350 1351 return (error); 1352 } 1353 1354 /* 1355 * Sudden Motion Sensor functions. 1356 */ 1357 static int 1358 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1359 { 1360 uint8_t buf[2]; 1361 int error; 1362 1363 /* no need to do locking here as asmc_key_read() already does it */ 1364 switch (key[3]) { 1365 case 'X': 1366 case 'Y': 1367 case 'Z': 1368 error = asmc_key_read(dev, key, buf, sizeof buf); 1369 break; 1370 default: 1371 device_printf(dev, "%s called with invalid argument %s\n", 1372 __func__, key); 1373 error = 1; 1374 goto out; 1375 } 1376 *val = ((int16_t)buf[0] << 8) | buf[1]; 1377 out: 1378 return (error); 1379 } 1380 1381 static void 1382 asmc_sms_calibrate(device_t dev) 1383 { 1384 struct asmc_softc *sc = device_get_softc(dev); 1385 1386 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1387 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1388 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1389 } 1390 1391 static int 1392 asmc_sms_intrfast(void *arg) 1393 { 1394 uint8_t type; 1395 device_t dev = (device_t) arg; 1396 struct asmc_softc *sc = device_get_softc(dev); 1397 if (!sc->sc_sms_intr_works) 1398 return (FILTER_HANDLED); 1399 1400 mtx_lock_spin(&sc->sc_mtx); 1401 type = ASMC_INTPORT_READ(sc); 1402 mtx_unlock_spin(&sc->sc_mtx); 1403 1404 sc->sc_sms_intrtype = type; 1405 asmc_sms_printintr(dev, type); 1406 1407 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1408 return (FILTER_HANDLED); 1409 } 1410 1411 static void 1412 asmc_sms_printintr(device_t dev, uint8_t type) 1413 { 1414 struct asmc_softc *sc = device_get_softc(dev); 1415 1416 switch (type) { 1417 case ASMC_SMS_INTFF: 1418 device_printf(dev, "WARNING: possible free fall!\n"); 1419 break; 1420 case ASMC_SMS_INTHA: 1421 device_printf(dev, "WARNING: high acceleration detected!\n"); 1422 break; 1423 case ASMC_SMS_INTSH: 1424 device_printf(dev, "WARNING: possible shock!\n"); 1425 break; 1426 case ASMC_ALSL_INT2A: 1427 /* 1428 * This suppresses console and log messages for the ambient 1429 * light sensor for models known to generate this interrupt. 1430 */ 1431 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1432 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1433 break; 1434 /* FALLTHROUGH */ 1435 default: 1436 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1437 } 1438 } 1439 1440 static void 1441 asmc_sms_task(void *arg, int pending) 1442 { 1443 struct asmc_softc *sc = (struct asmc_softc *)arg; 1444 char notify[16]; 1445 int type; 1446 1447 switch (sc->sc_sms_intrtype) { 1448 case ASMC_SMS_INTFF: 1449 type = 2; 1450 break; 1451 case ASMC_SMS_INTHA: 1452 type = 1; 1453 break; 1454 case ASMC_SMS_INTSH: 1455 type = 0; 1456 break; 1457 default: 1458 type = 255; 1459 } 1460 1461 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1462 devctl_notify("ACPI", "asmc", "SMS", notify); 1463 } 1464 1465 static int 1466 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1467 { 1468 device_t dev = (device_t) arg1; 1469 int error; 1470 int16_t val; 1471 int32_t v; 1472 1473 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1474 v = (int32_t) val; 1475 error = sysctl_handle_int(oidp, &v, 0, req); 1476 1477 return (error); 1478 } 1479 1480 static int 1481 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1482 { 1483 device_t dev = (device_t) arg1; 1484 int error; 1485 int16_t val; 1486 int32_t v; 1487 1488 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1489 v = (int32_t) val; 1490 error = sysctl_handle_int(oidp, &v, 0, req); 1491 1492 return (error); 1493 } 1494 1495 static int 1496 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1497 { 1498 device_t dev = (device_t) arg1; 1499 int error; 1500 int16_t val; 1501 int32_t v; 1502 1503 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1504 v = (int32_t) val; 1505 error = sysctl_handle_int(oidp, &v, 0, req); 1506 1507 return (error); 1508 } 1509 1510 static int 1511 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1512 { 1513 device_t dev = (device_t) arg1; 1514 uint8_t buf[6]; 1515 int error; 1516 int32_t v; 1517 1518 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1519 v = buf[2]; 1520 error = sysctl_handle_int(oidp, &v, 0, req); 1521 1522 return (error); 1523 } 1524 1525 static int 1526 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1527 { 1528 device_t dev = (device_t) arg1; 1529 uint8_t buf[6]; 1530 int error; 1531 int32_t v; 1532 1533 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1534 v = buf[2]; 1535 error = sysctl_handle_int(oidp, &v, 0, req); 1536 1537 return (error); 1538 } 1539 1540 static int 1541 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1542 { 1543 device_t dev = (device_t) arg1; 1544 uint8_t buf[2]; 1545 int error; 1546 int v; 1547 1548 v = light_control; 1549 error = sysctl_handle_int(oidp, &v, 0, req); 1550 1551 if (error == 0 && req->newptr != NULL) { 1552 if (v < 0 || v > 255) 1553 return (EINVAL); 1554 light_control = v; 1555 buf[0] = light_control; 1556 buf[1] = 0x00; 1557 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1558 } 1559 return (error); 1560 } 1561 1562 static int 1563 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1564 { 1565 device_t dev = (device_t) arg1; 1566 uint8_t buf[10]; 1567 int error; 1568 uint32_t v; 1569 1570 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1571 1572 /* 1573 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1574 * 1575 * Extract it out manually here, then shift/clamp it. 1576 */ 1577 v = be32dec(&buf[6]); 1578 1579 /* 1580 * Shift out, clamp at 255; that way it looks like the 1581 * earlier SMC firmware version responses. 1582 */ 1583 v = v >> 8; 1584 if (v > 255) 1585 v = 255; 1586 1587 error = sysctl_handle_int(oidp, &v, 0, req); 1588 1589 return (error); 1590 } 1591