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