1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2007, 2008 Rui Paulo <rpaulo@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 /* 31 * Driver for Apple's System Management Console (SMC). 32 * SMC can be found on the MacBook, MacBook Pro and Mac Mini. 33 * 34 * Inspired by the Linux applesmc driver. 35 */ 36 37 #include <sys/param.h> 38 #include <sys/bus.h> 39 #include <sys/conf.h> 40 #include <sys/endian.h> 41 #include <sys/kernel.h> 42 #include <sys/lock.h> 43 #include <sys/malloc.h> 44 #include <sys/module.h> 45 #include <sys/mutex.h> 46 #include <sys/sysctl.h> 47 #include <sys/systm.h> 48 #include <sys/taskqueue.h> 49 #include <sys/rman.h> 50 51 #include <machine/resource.h> 52 53 #include <contrib/dev/acpica/include/acpi.h> 54 55 #include <dev/acpica/acpivar.h> 56 #include <dev/asmc/asmcvar.h> 57 58 /* 59 * Device interface. 60 */ 61 static int asmc_probe(device_t dev); 62 static int asmc_attach(device_t dev); 63 static int asmc_detach(device_t dev); 64 static int asmc_resume(device_t dev); 65 66 /* 67 * SMC functions. 68 */ 69 static int asmc_init(device_t dev); 70 static int asmc_command(device_t dev, uint8_t command); 71 static int asmc_wait(device_t dev, uint8_t val); 72 static int asmc_wait_ack(device_t dev, uint8_t val, int amount); 73 static int asmc_key_write(device_t dev, const char *key, uint8_t *buf, 74 uint8_t len); 75 static int asmc_key_read(device_t dev, const char *key, uint8_t *buf, 76 uint8_t); 77 static int asmc_fan_count(device_t dev); 78 static int asmc_fan_getvalue(device_t dev, const char *key, int fan); 79 static int asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed); 80 static int asmc_temp_getvalue(device_t dev, const char *key); 81 static int asmc_sms_read(device_t, const char *key, int16_t *val); 82 static void asmc_sms_calibrate(device_t dev); 83 static int asmc_sms_intrfast(void *arg); 84 static void asmc_sms_printintr(device_t dev, uint8_t); 85 static void asmc_sms_task(void *arg, int pending); 86 #ifdef DEBUG 87 void asmc_dumpall(device_t); 88 static int asmc_key_dump(device_t, int); 89 #endif 90 91 /* 92 * Model functions. 93 */ 94 static int asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS); 95 static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS); 96 static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS); 97 static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS); 98 static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS); 99 static int asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS); 100 static int asmc_temp_sysctl(SYSCTL_HANDLER_ARGS); 101 static int asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS); 102 static int asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS); 103 static int asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS); 104 static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS); 105 static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS); 106 static int asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS); 107 static int asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS); 108 109 struct asmc_model { 110 const char *smc_model; /* smbios.system.product env var. */ 111 const char *smc_desc; /* driver description */ 112 113 /* Helper functions */ 114 int (*smc_sms_x)(SYSCTL_HANDLER_ARGS); 115 int (*smc_sms_y)(SYSCTL_HANDLER_ARGS); 116 int (*smc_sms_z)(SYSCTL_HANDLER_ARGS); 117 int (*smc_fan_id)(SYSCTL_HANDLER_ARGS); 118 int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS); 119 int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS); 120 int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS); 121 int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS); 122 int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS); 123 int (*smc_light_left)(SYSCTL_HANDLER_ARGS); 124 int (*smc_light_right)(SYSCTL_HANDLER_ARGS); 125 int (*smc_light_control)(SYSCTL_HANDLER_ARGS); 126 127 const char *smc_temps[ASMC_TEMP_MAX]; 128 const char *smc_tempnames[ASMC_TEMP_MAX]; 129 const char *smc_tempdescs[ASMC_TEMP_MAX]; 130 }; 131 132 static const struct asmc_model *asmc_match(device_t dev); 133 134 #define ASMC_SMS_FUNCS asmc_mb_sysctl_sms_x, asmc_mb_sysctl_sms_y, \ 135 asmc_mb_sysctl_sms_z 136 137 #define ASMC_SMS_FUNCS_DISABLED NULL,NULL,NULL 138 139 #define ASMC_FAN_FUNCS asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, asmc_mb_sysctl_fansafespeed, \ 140 asmc_mb_sysctl_fanminspeed, \ 141 asmc_mb_sysctl_fanmaxspeed, \ 142 asmc_mb_sysctl_fantargetspeed 143 144 #define ASMC_FAN_FUNCS2 asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, NULL, \ 145 asmc_mb_sysctl_fanminspeed, \ 146 asmc_mb_sysctl_fanmaxspeed, \ 147 asmc_mb_sysctl_fantargetspeed 148 149 #define ASMC_LIGHT_FUNCS asmc_mbp_sysctl_light_left, \ 150 asmc_mbp_sysctl_light_right, \ 151 asmc_mbp_sysctl_light_control 152 153 #define ASMC_LIGHT_FUNCS_10BYTE \ 154 asmc_mbp_sysctl_light_left_10byte, \ 155 NULL, \ 156 asmc_mbp_sysctl_light_control 157 158 #define ASMC_LIGHT_FUNCS_DISABLED NULL, NULL, NULL 159 160 static const struct asmc_model asmc_models[] = { 161 { 162 "MacBook1,1", "Apple SMC MacBook Core Duo", 163 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 164 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 165 }, 166 167 { 168 "MacBook2,1", "Apple SMC MacBook Core 2 Duo", 169 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 170 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 171 }, 172 173 { 174 "MacBook3,1", "Apple SMC MacBook Core 2 Duo", 175 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 176 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS 177 }, 178 179 { 180 "MacBook7,1", "Apple SMC MacBook Core 2 Duo (mid 2010)", 181 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS_DISABLED, 182 ASMC_MB71_TEMPS, ASMC_MB71_TEMPNAMES, ASMC_MB71_TEMPDESCS 183 }, 184 185 { 186 "MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)", 187 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 188 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 189 }, 190 191 { 192 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)", 193 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 194 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 195 }, 196 197 { 198 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)", 199 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 200 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 201 }, 202 203 { 204 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)", 205 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 206 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 207 }, 208 209 { 210 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)", 211 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 212 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 213 }, 214 215 { 216 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)", 217 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 218 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 219 }, 220 221 { 222 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)", 223 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 224 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS 225 }, 226 227 { 228 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)", 229 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 230 ASMC_MBP51_TEMPS, ASMC_MBP51_TEMPNAMES, ASMC_MBP51_TEMPDESCS 231 }, 232 233 { 234 "MacBookPro5,5", "Apple SMC MacBook Pro Core 2 Duo (Mid 2009)", 235 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 236 ASMC_MBP55_TEMPS, ASMC_MBP55_TEMPNAMES, ASMC_MBP55_TEMPDESCS 237 }, 238 239 { 240 "MacBookPro6,2", "Apple SMC MacBook Pro (Mid 2010, 15-inch)", 241 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 242 ASMC_MBP62_TEMPS, ASMC_MBP62_TEMPNAMES, ASMC_MBP62_TEMPDESCS 243 }, 244 245 { 246 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)", 247 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 248 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS 249 }, 250 251 { 252 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)", 253 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 254 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS 255 }, 256 257 { 258 "MacBookPro9,1", "Apple SMC MacBook Pro (mid 2012, 15-inch)", 259 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 260 ASMC_MBP91_TEMPS, ASMC_MBP91_TEMPNAMES, ASMC_MBP91_TEMPDESCS 261 }, 262 263 { 264 "MacBookPro9,2", "Apple SMC MacBook Pro (mid 2012, 13-inch)", 265 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 266 ASMC_MBP92_TEMPS, ASMC_MBP92_TEMPNAMES, ASMC_MBP92_TEMPDESCS 267 }, 268 269 { 270 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 271 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 272 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS 273 }, 274 275 { 276 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 277 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 278 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS 279 }, 280 281 /* The Mac Mini has no SMS */ 282 { 283 "Macmini1,1", "Apple SMC Mac Mini", 284 NULL, NULL, NULL, 285 ASMC_FAN_FUNCS, 286 NULL, NULL, NULL, 287 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS 288 }, 289 290 /* The Mac Mini 2,1 has no SMS */ 291 { 292 "Macmini2,1", "Apple SMC Mac Mini 2,1", 293 ASMC_SMS_FUNCS_DISABLED, 294 ASMC_FAN_FUNCS, 295 ASMC_LIGHT_FUNCS_DISABLED, 296 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS 297 }, 298 299 /* The Mac Mini 3,1 has no SMS */ 300 { 301 "Macmini3,1", "Apple SMC Mac Mini 3,1", 302 NULL, NULL, NULL, 303 ASMC_FAN_FUNCS, 304 NULL, NULL, NULL, 305 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS 306 }, 307 308 /* The Mac Mini 4,1 (Mid-2010) has no SMS */ 309 { 310 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)", 311 ASMC_SMS_FUNCS_DISABLED, 312 ASMC_FAN_FUNCS, 313 ASMC_LIGHT_FUNCS_DISABLED, 314 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS 315 }, 316 317 /* The Mac Mini 5,1 has no SMS */ 318 /* - same sensors as Mac Mini 5,2 */ 319 { 320 "Macmini5,1", "Apple SMC Mac Mini 5,1", 321 NULL, NULL, NULL, 322 ASMC_FAN_FUNCS2, 323 NULL, NULL, NULL, 324 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 325 }, 326 327 /* The Mac Mini 5,2 has no SMS */ 328 { 329 "Macmini5,2", "Apple SMC Mac Mini 5,2", 330 NULL, NULL, NULL, 331 ASMC_FAN_FUNCS2, 332 NULL, NULL, NULL, 333 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 334 }, 335 336 /* The Mac Mini 5,3 has no SMS */ 337 /* - same sensors as Mac Mini 5,2 */ 338 { 339 "Macmini5,3", "Apple SMC Mac Mini 5,3", 340 NULL, NULL, NULL, 341 ASMC_FAN_FUNCS2, 342 NULL, NULL, NULL, 343 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 344 }, 345 346 /* The Mac Mini 7,1 has no SMS */ 347 { 348 "Macmini7,1", "Apple SMC Mac Mini 7,1", 349 NULL, NULL, NULL, 350 ASMC_FAN_FUNCS2, 351 NULL, NULL, NULL, 352 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS 353 }, 354 355 /* Idem for the Mac Pro "Quad Core" (original) */ 356 { 357 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)", 358 NULL, NULL, NULL, 359 ASMC_FAN_FUNCS, 360 NULL, NULL, NULL, 361 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS 362 }, 363 364 /* Idem for the Mac Pro (8-core) */ 365 { 366 "MacPro2", "Apple SMC Mac Pro (8-core)", 367 NULL, NULL, NULL, 368 ASMC_FAN_FUNCS, 369 NULL, NULL, NULL, 370 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 371 }, 372 373 /* Idem for the MacPro 2010*/ 374 { 375 "MacPro5,1", "Apple SMC MacPro (2010)", 376 NULL, NULL, NULL, 377 ASMC_FAN_FUNCS, 378 NULL, NULL, NULL, 379 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 380 }, 381 382 /* Idem for the Mac Pro 2013 (cylinder) */ 383 { 384 "MacPro6,1", "Apple SMC Mac Pro (2013)", 385 ASMC_SMS_FUNCS_DISABLED, 386 ASMC_FAN_FUNCS2, 387 ASMC_LIGHT_FUNCS_DISABLED, 388 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 389 }, 390 391 { 392 "MacBookAir1,1", "Apple SMC MacBook Air", 393 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 394 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 395 }, 396 397 { 398 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 399 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 400 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 401 }, 402 403 { 404 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 405 ASMC_SMS_FUNCS_DISABLED, 406 ASMC_FAN_FUNCS2, 407 ASMC_LIGHT_FUNCS, 408 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 409 }, 410 411 { 412 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 413 ASMC_SMS_FUNCS_DISABLED, 414 ASMC_FAN_FUNCS2, 415 ASMC_LIGHT_FUNCS, 416 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 417 }, 418 419 { 420 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 421 ASMC_SMS_FUNCS_DISABLED, 422 ASMC_FAN_FUNCS2, 423 ASMC_LIGHT_FUNCS, 424 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 425 }, 426 427 { 428 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 429 ASMC_SMS_FUNCS_DISABLED, 430 ASMC_FAN_FUNCS2, 431 ASMC_LIGHT_FUNCS, 432 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 433 }, 434 { 435 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 436 ASMC_SMS_FUNCS_DISABLED, 437 ASMC_FAN_FUNCS2, 438 ASMC_LIGHT_FUNCS_10BYTE, 439 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 440 }, 441 { 442 "MacBookAir6,2", "Apple SMC MacBook Air 13-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 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 450 ASMC_SMS_FUNCS_DISABLED, 451 ASMC_FAN_FUNCS2, 452 ASMC_LIGHT_FUNCS, 453 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 454 }, 455 { 456 "MacBookAir7,2", "Apple SMC MacBook Air 13-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 { NULL, NULL } 463 }; 464 465 #undef ASMC_SMS_FUNCS 466 #undef ASMC_SMS_FUNCS_DISABLED 467 #undef ASMC_FAN_FUNCS 468 #undef ASMC_FAN_FUNCS2 469 #undef ASMC_LIGHT_FUNCS 470 471 /* 472 * Driver methods. 473 */ 474 static device_method_t asmc_methods[] = { 475 DEVMETHOD(device_probe, asmc_probe), 476 DEVMETHOD(device_attach, asmc_attach), 477 DEVMETHOD(device_detach, asmc_detach), 478 DEVMETHOD(device_resume, asmc_resume), 479 { 0, 0 } 480 }; 481 482 static driver_t asmc_driver = { 483 "asmc", 484 asmc_methods, 485 sizeof(struct asmc_softc) 486 }; 487 488 /* 489 * Debugging 490 */ 491 #define _COMPONENT ACPI_OEM 492 ACPI_MODULE_NAME("ASMC") 493 #ifdef DEBUG 494 #define ASMC_DPRINTF(str) device_printf(dev, str) 495 #else 496 #define ASMC_DPRINTF(str) 497 #endif 498 499 /* NB: can't be const */ 500 static char *asmc_ids[] = { "APP0001", NULL }; 501 502 static unsigned int light_control = 0; 503 504 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 505 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 506 507 static const struct asmc_model * 508 asmc_match(device_t dev) 509 { 510 int i; 511 char *model; 512 513 model = kern_getenv("smbios.system.product"); 514 if (model == NULL) 515 return (NULL); 516 517 for (i = 0; asmc_models[i].smc_model; i++) { 518 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 519 freeenv(model); 520 return (&asmc_models[i]); 521 } 522 } 523 freeenv(model); 524 525 return (NULL); 526 } 527 528 static int 529 asmc_probe(device_t dev) 530 { 531 const struct asmc_model *model; 532 int rv; 533 534 if (resource_disabled("asmc", 0)) 535 return (ENXIO); 536 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 537 if (rv > 0) 538 return (rv); 539 540 model = asmc_match(dev); 541 if (!model) { 542 device_printf(dev, "model not recognized\n"); 543 return (ENXIO); 544 } 545 device_set_desc(dev, model->smc_desc); 546 547 return (rv); 548 } 549 550 static int 551 asmc_attach(device_t dev) 552 { 553 int i, j; 554 int ret; 555 char name[2]; 556 struct asmc_softc *sc = device_get_softc(dev); 557 struct sysctl_ctx_list *sysctlctx; 558 struct sysctl_oid *sysctlnode; 559 const struct asmc_model *model; 560 561 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 562 &sc->sc_rid_port, RF_ACTIVE); 563 if (sc->sc_ioport == NULL) { 564 device_printf(dev, "unable to allocate IO port\n"); 565 return (ENOMEM); 566 } 567 568 sysctlctx = device_get_sysctl_ctx(dev); 569 sysctlnode = device_get_sysctl_tree(dev); 570 571 model = asmc_match(dev); 572 573 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 574 575 sc->sc_model = model; 576 asmc_init(dev); 577 578 /* 579 * dev.asmc.n.fan.* tree. 580 */ 581 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 582 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 583 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 584 585 for (i = 1; i <= sc->sc_nfan; i++) { 586 j = i - 1; 587 name[0] = '0' + j; 588 name[1] = 0; 589 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 590 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 591 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 592 "Fan Subtree"); 593 594 SYSCTL_ADD_PROC(sysctlctx, 595 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 596 OID_AUTO, "id", 597 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 598 dev, j, model->smc_fan_id, "I", 599 "Fan ID"); 600 601 SYSCTL_ADD_PROC(sysctlctx, 602 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 603 OID_AUTO, "speed", 604 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 605 dev, j, model->smc_fan_speed, "I", 606 "Fan speed in RPM"); 607 608 SYSCTL_ADD_PROC(sysctlctx, 609 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 610 OID_AUTO, "safespeed", 611 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 612 dev, j, model->smc_fan_safespeed, "I", 613 "Fan safe speed in RPM"); 614 615 SYSCTL_ADD_PROC(sysctlctx, 616 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 617 OID_AUTO, "minspeed", 618 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 619 dev, j, model->smc_fan_minspeed, "I", 620 "Fan minimum speed in RPM"); 621 622 SYSCTL_ADD_PROC(sysctlctx, 623 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 624 OID_AUTO, "maxspeed", 625 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 626 dev, j, model->smc_fan_maxspeed, "I", 627 "Fan maximum speed in RPM"); 628 629 SYSCTL_ADD_PROC(sysctlctx, 630 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 631 OID_AUTO, "targetspeed", 632 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 633 dev, j, model->smc_fan_targetspeed, "I", 634 "Fan target speed in RPM"); 635 } 636 637 /* 638 * dev.asmc.n.temp tree. 639 */ 640 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 641 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 642 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 643 644 for (i = 0; model->smc_temps[i]; i++) { 645 SYSCTL_ADD_PROC(sysctlctx, 646 SYSCTL_CHILDREN(sc->sc_temp_tree), 647 OID_AUTO, model->smc_tempnames[i], 648 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 649 dev, i, asmc_temp_sysctl, "I", 650 model->smc_tempdescs[i]); 651 } 652 653 /* 654 * dev.asmc.n.light 655 */ 656 if (model->smc_light_left) { 657 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 658 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 659 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 660 "Keyboard backlight sensors"); 661 662 SYSCTL_ADD_PROC(sysctlctx, 663 SYSCTL_CHILDREN(sc->sc_light_tree), 664 OID_AUTO, "left", 665 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 666 dev, 0, model->smc_light_left, "I", 667 "Keyboard backlight left sensor"); 668 669 SYSCTL_ADD_PROC(sysctlctx, 670 SYSCTL_CHILDREN(sc->sc_light_tree), 671 OID_AUTO, "right", 672 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 673 dev, 0, model->smc_light_right, "I", 674 "Keyboard backlight right sensor"); 675 676 SYSCTL_ADD_PROC(sysctlctx, 677 SYSCTL_CHILDREN(sc->sc_light_tree), 678 OID_AUTO, "control", 679 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 680 CTLFLAG_NEEDGIANT, dev, 0, 681 model->smc_light_control, "I", 682 "Keyboard backlight brightness control"); 683 } 684 685 if (model->smc_sms_x == NULL) 686 goto nosms; 687 688 /* 689 * dev.asmc.n.sms tree. 690 */ 691 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 692 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 693 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 694 695 SYSCTL_ADD_PROC(sysctlctx, 696 SYSCTL_CHILDREN(sc->sc_sms_tree), 697 OID_AUTO, "x", 698 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 699 dev, 0, model->smc_sms_x, "I", 700 "Sudden Motion Sensor X value"); 701 702 SYSCTL_ADD_PROC(sysctlctx, 703 SYSCTL_CHILDREN(sc->sc_sms_tree), 704 OID_AUTO, "y", 705 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 706 dev, 0, model->smc_sms_y, "I", 707 "Sudden Motion Sensor Y value"); 708 709 SYSCTL_ADD_PROC(sysctlctx, 710 SYSCTL_CHILDREN(sc->sc_sms_tree), 711 OID_AUTO, "z", 712 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 713 dev, 0, model->smc_sms_z, "I", 714 "Sudden Motion Sensor Z value"); 715 716 /* 717 * Need a taskqueue to send devctl_notify() events 718 * when the SMS interrupt us. 719 * 720 * PI_REALTIME is used due to the sensitivity of the 721 * interrupt. An interrupt from the SMS means that the 722 * disk heads should be turned off as quickly as possible. 723 * 724 * We only need to do this for the non INTR_FILTER case. 725 */ 726 sc->sc_sms_tq = NULL; 727 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 728 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 729 taskqueue_thread_enqueue, &sc->sc_sms_tq); 730 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 731 device_get_nameunit(dev)); 732 /* 733 * Allocate an IRQ for the SMS. 734 */ 735 sc->sc_rid_irq = 0; 736 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 737 &sc->sc_rid_irq, RF_ACTIVE); 738 if (sc->sc_irq == NULL) { 739 device_printf(dev, "unable to allocate IRQ resource\n"); 740 ret = ENXIO; 741 goto err2; 742 } 743 744 ret = bus_setup_intr(dev, sc->sc_irq, 745 INTR_TYPE_MISC | INTR_MPSAFE, 746 asmc_sms_intrfast, NULL, 747 dev, &sc->sc_cookie); 748 749 if (ret) { 750 device_printf(dev, "unable to setup SMS IRQ\n"); 751 goto err1; 752 } 753 nosms: 754 return (0); 755 err1: 756 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 757 err2: 758 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 759 sc->sc_ioport); 760 mtx_destroy(&sc->sc_mtx); 761 if (sc->sc_sms_tq) 762 taskqueue_free(sc->sc_sms_tq); 763 764 return (ret); 765 } 766 767 static int 768 asmc_detach(device_t dev) 769 { 770 struct asmc_softc *sc = device_get_softc(dev); 771 772 if (sc->sc_sms_tq) { 773 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 774 taskqueue_free(sc->sc_sms_tq); 775 } 776 if (sc->sc_cookie) 777 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 778 if (sc->sc_irq) 779 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 780 sc->sc_irq); 781 if (sc->sc_ioport) 782 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 783 sc->sc_ioport); 784 mtx_destroy(&sc->sc_mtx); 785 786 return (0); 787 } 788 789 static int 790 asmc_resume(device_t dev) 791 { 792 uint8_t buf[2]; 793 buf[0] = light_control; 794 buf[1] = 0x00; 795 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 796 return (0); 797 } 798 799 #ifdef DEBUG 800 void asmc_dumpall(device_t dev) 801 { 802 int i; 803 804 /* XXX magic number */ 805 for (i=0; i < 0x100; i++) 806 asmc_key_dump(dev, i); 807 } 808 #endif 809 810 static int 811 asmc_init(device_t dev) 812 { 813 struct asmc_softc *sc = device_get_softc(dev); 814 int i, error = 1; 815 uint8_t buf[4]; 816 817 if (sc->sc_model->smc_sms_x == NULL) 818 goto nosms; 819 820 /* 821 * We are ready to receive interrupts from the SMS. 822 */ 823 buf[0] = 0x01; 824 ASMC_DPRINTF(("intok key\n")); 825 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 826 DELAY(50); 827 828 /* 829 * Initiate the polling intervals. 830 */ 831 buf[0] = 20; /* msecs */ 832 ASMC_DPRINTF(("low int key\n")); 833 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 834 DELAY(200); 835 836 buf[0] = 20; /* msecs */ 837 ASMC_DPRINTF(("high int key\n")); 838 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 839 DELAY(200); 840 841 buf[0] = 0x00; 842 buf[1] = 0x60; 843 ASMC_DPRINTF(("sms low key\n")); 844 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 845 DELAY(200); 846 847 buf[0] = 0x01; 848 buf[1] = 0xc0; 849 ASMC_DPRINTF(("sms high key\n")); 850 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 851 DELAY(200); 852 853 /* 854 * I'm not sure what this key does, but it seems to be 855 * required. 856 */ 857 buf[0] = 0x01; 858 ASMC_DPRINTF(("sms flag key\n")); 859 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 860 DELAY(100); 861 862 sc->sc_sms_intr_works = 0; 863 864 /* 865 * Retry SMS initialization 1000 times 866 * (takes approx. 2 seconds in worst case) 867 */ 868 for (i = 0; i < 1000; i++) { 869 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 870 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 871 error = 0; 872 sc->sc_sms_intr_works = 1; 873 goto out; 874 } 875 buf[0] = ASMC_SMS_INIT1; 876 buf[1] = ASMC_SMS_INIT2; 877 ASMC_DPRINTF(("sms key\n")); 878 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 879 DELAY(50); 880 } 881 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 882 883 out: 884 asmc_sms_calibrate(dev); 885 nosms: 886 sc->sc_nfan = asmc_fan_count(dev); 887 if (sc->sc_nfan > ASMC_MAXFANS) { 888 device_printf(dev, "more than %d fans were detected. Please " 889 "report this.\n", ASMC_MAXFANS); 890 sc->sc_nfan = ASMC_MAXFANS; 891 } 892 893 if (bootverbose) { 894 /* 895 * The number of keys is a 32 bit buffer 896 */ 897 asmc_key_read(dev, ASMC_NKEYS, buf, 4); 898 device_printf(dev, "number of keys: %d\n", ntohl(*(uint32_t*)buf)); 899 } 900 901 #ifdef DEBUG 902 asmc_dumpall(dev); 903 #endif 904 905 return (error); 906 } 907 908 /* 909 * We need to make sure that the SMC acks the byte sent. 910 * Just wait up to (amount * 10) ms. 911 */ 912 static int 913 asmc_wait_ack(device_t dev, uint8_t val, int amount) 914 { 915 struct asmc_softc *sc = device_get_softc(dev); 916 u_int i; 917 918 val = val & ASMC_STATUS_MASK; 919 920 for (i = 0; i < amount; i++) { 921 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 922 return (0); 923 DELAY(10); 924 } 925 926 return (1); 927 } 928 929 /* 930 * We need to make sure that the SMC acks the byte sent. 931 * Just wait up to 100 ms. 932 */ 933 static int 934 asmc_wait(device_t dev, uint8_t val) 935 { 936 #ifdef DEBUG 937 struct asmc_softc *sc; 938 #endif 939 940 if (asmc_wait_ack(dev, val, 1000) == 0) 941 return (0); 942 943 #ifdef DEBUG 944 sc = device_get_softc(dev); 945 #endif 946 val = val & ASMC_STATUS_MASK; 947 948 #ifdef DEBUG 949 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 950 ASMC_CMDPORT_READ(sc)); 951 #endif 952 return (1); 953 } 954 955 /* 956 * Send the given command, retrying up to 10 times if 957 * the acknowledgement fails. 958 */ 959 static int 960 asmc_command(device_t dev, uint8_t command) { 961 int i; 962 struct asmc_softc *sc = device_get_softc(dev); 963 964 for (i=0; i < 10; i++) { 965 ASMC_CMDPORT_WRITE(sc, command); 966 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 967 return (0); 968 } 969 } 970 971 #ifdef DEBUG 972 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 973 ASMC_CMDPORT_READ(sc)); 974 #endif 975 return (1); 976 } 977 978 static int 979 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 980 { 981 int i, error = 1, try = 0; 982 struct asmc_softc *sc = device_get_softc(dev); 983 984 mtx_lock_spin(&sc->sc_mtx); 985 986 begin: 987 if (asmc_command(dev, ASMC_CMDREAD)) 988 goto out; 989 990 for (i = 0; i < 4; i++) { 991 ASMC_DATAPORT_WRITE(sc, key[i]); 992 if (asmc_wait(dev, 0x04)) 993 goto out; 994 } 995 996 ASMC_DATAPORT_WRITE(sc, len); 997 998 for (i = 0; i < len; i++) { 999 if (asmc_wait(dev, 0x05)) 1000 goto out; 1001 buf[i] = ASMC_DATAPORT_READ(sc); 1002 } 1003 1004 error = 0; 1005 out: 1006 if (error) { 1007 if (++try < 10) goto begin; 1008 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1009 __func__, key, try); 1010 } 1011 1012 mtx_unlock_spin(&sc->sc_mtx); 1013 1014 return (error); 1015 } 1016 1017 #ifdef DEBUG 1018 static int 1019 asmc_key_dump(device_t dev, int number) 1020 { 1021 struct asmc_softc *sc = device_get_softc(dev); 1022 char key[5] = { 0 }; 1023 char type[7] = { 0 }; 1024 uint8_t index[4]; 1025 uint8_t v[32]; 1026 uint8_t maxlen; 1027 int i, error = 1, try = 0; 1028 1029 mtx_lock_spin(&sc->sc_mtx); 1030 1031 index[0] = (number >> 24) & 0xff; 1032 index[1] = (number >> 16) & 0xff; 1033 index[2] = (number >> 8) & 0xff; 1034 index[3] = (number) & 0xff; 1035 1036 begin: 1037 if (asmc_command(dev, 0x12)) 1038 goto out; 1039 1040 for (i = 0; i < 4; i++) { 1041 ASMC_DATAPORT_WRITE(sc, index[i]); 1042 if (asmc_wait(dev, 0x04)) 1043 goto out; 1044 } 1045 1046 ASMC_DATAPORT_WRITE(sc, 4); 1047 1048 for (i = 0; i < 4; i++) { 1049 if (asmc_wait(dev, 0x05)) 1050 goto out; 1051 key[i] = ASMC_DATAPORT_READ(sc); 1052 } 1053 1054 /* get type */ 1055 if (asmc_command(dev, 0x13)) 1056 goto out; 1057 1058 for (i = 0; i < 4; i++) { 1059 ASMC_DATAPORT_WRITE(sc, key[i]); 1060 if (asmc_wait(dev, 0x04)) 1061 goto out; 1062 } 1063 1064 ASMC_DATAPORT_WRITE(sc, 6); 1065 1066 for (i = 0; i < 6; i++) { 1067 if (asmc_wait(dev, 0x05)) 1068 goto out; 1069 type[i] = ASMC_DATAPORT_READ(sc); 1070 } 1071 1072 error = 0; 1073 out: 1074 if (error) { 1075 if (++try < 10) goto begin; 1076 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1077 __func__, key, try); 1078 mtx_unlock_spin(&sc->sc_mtx); 1079 } 1080 else { 1081 char buf[1024]; 1082 char buf2[8]; 1083 mtx_unlock_spin(&sc->sc_mtx); 1084 maxlen = type[0]; 1085 type[0] = ' '; 1086 type[5] = 0; 1087 if (maxlen > sizeof(v)) { 1088 device_printf(dev, 1089 "WARNING: cropping maxlen from %d to %zu\n", 1090 maxlen, sizeof(v)); 1091 maxlen = sizeof(v); 1092 } 1093 for (i = 0; i < sizeof(v); i++) { 1094 v[i] = 0; 1095 } 1096 asmc_key_read(dev, key, v, maxlen); 1097 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1098 "(len %d), data", number, key, type, maxlen); 1099 for (i = 0; i < maxlen; i++) { 1100 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1101 strlcat(buf, buf2, sizeof(buf)); 1102 } 1103 strlcat(buf, " \n", sizeof(buf)); 1104 device_printf(dev, "%s", buf); 1105 } 1106 1107 return (error); 1108 } 1109 #endif 1110 1111 static int 1112 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1113 { 1114 int i, error = -1, try = 0; 1115 struct asmc_softc *sc = device_get_softc(dev); 1116 1117 mtx_lock_spin(&sc->sc_mtx); 1118 1119 begin: 1120 ASMC_DPRINTF(("cmd port: cmd write\n")); 1121 if (asmc_command(dev, ASMC_CMDWRITE)) 1122 goto out; 1123 1124 ASMC_DPRINTF(("data port: key\n")); 1125 for (i = 0; i < 4; i++) { 1126 ASMC_DATAPORT_WRITE(sc, key[i]); 1127 if (asmc_wait(dev, 0x04)) 1128 goto out; 1129 } 1130 ASMC_DPRINTF(("data port: length\n")); 1131 ASMC_DATAPORT_WRITE(sc, len); 1132 1133 ASMC_DPRINTF(("data port: buffer\n")); 1134 for (i = 0; i < len; i++) { 1135 if (asmc_wait(dev, 0x04)) 1136 goto out; 1137 ASMC_DATAPORT_WRITE(sc, buf[i]); 1138 } 1139 1140 error = 0; 1141 out: 1142 if (error) { 1143 if (++try < 10) goto begin; 1144 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1145 __func__, key, try); 1146 } 1147 1148 mtx_unlock_spin(&sc->sc_mtx); 1149 1150 return (error); 1151 1152 } 1153 1154 /* 1155 * Fan control functions. 1156 */ 1157 static int 1158 asmc_fan_count(device_t dev) 1159 { 1160 uint8_t buf[1]; 1161 1162 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1163 return (-1); 1164 1165 return (buf[0]); 1166 } 1167 1168 static int 1169 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1170 { 1171 int speed; 1172 uint8_t buf[2]; 1173 char fankey[5]; 1174 1175 snprintf(fankey, sizeof(fankey), key, fan); 1176 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1177 return (-1); 1178 speed = (buf[0] << 6) | (buf[1] >> 2); 1179 1180 return (speed); 1181 } 1182 1183 static char* 1184 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, uint8_t buflen) 1185 { 1186 char fankey[5]; 1187 char* desc; 1188 1189 snprintf(fankey, sizeof(fankey), key, fan); 1190 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1191 return (NULL); 1192 desc = buf+4; 1193 1194 return (desc); 1195 } 1196 1197 static int 1198 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1199 { 1200 uint8_t buf[2]; 1201 char fankey[5]; 1202 1203 speed *= 4; 1204 1205 buf[0] = speed>>8; 1206 buf[1] = speed; 1207 1208 snprintf(fankey, sizeof(fankey), key, fan); 1209 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1210 return (-1); 1211 1212 return (0); 1213 } 1214 1215 static int 1216 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1217 { 1218 device_t dev = (device_t) arg1; 1219 int fan = arg2; 1220 int error; 1221 int32_t v; 1222 1223 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1224 error = sysctl_handle_int(oidp, &v, 0, req); 1225 1226 return (error); 1227 } 1228 1229 static int 1230 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1231 { 1232 uint8_t buf[16]; 1233 device_t dev = (device_t) arg1; 1234 int fan = arg2; 1235 int error = true; 1236 char* desc; 1237 1238 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1239 1240 if (desc != NULL) 1241 error = sysctl_handle_string(oidp, desc, 0, req); 1242 1243 return (error); 1244 } 1245 1246 static int 1247 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1248 { 1249 device_t dev = (device_t) arg1; 1250 int fan = arg2; 1251 int error; 1252 int32_t v; 1253 1254 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1255 error = sysctl_handle_int(oidp, &v, 0, req); 1256 1257 return (error); 1258 } 1259 1260 static int 1261 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1262 { 1263 device_t dev = (device_t) arg1; 1264 int fan = arg2; 1265 int error; 1266 int32_t v; 1267 1268 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1269 error = sysctl_handle_int(oidp, &v, 0, req); 1270 1271 if (error == 0 && req->newptr != NULL) { 1272 unsigned int newspeed = v; 1273 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1274 } 1275 1276 return (error); 1277 } 1278 1279 static int 1280 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1281 { 1282 device_t dev = (device_t) arg1; 1283 int fan = arg2; 1284 int error; 1285 int32_t v; 1286 1287 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1288 error = sysctl_handle_int(oidp, &v, 0, req); 1289 1290 if (error == 0 && req->newptr != NULL) { 1291 unsigned int newspeed = v; 1292 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1293 } 1294 1295 return (error); 1296 } 1297 1298 static int 1299 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1300 { 1301 device_t dev = (device_t) arg1; 1302 int fan = arg2; 1303 int error; 1304 int32_t v; 1305 1306 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1307 error = sysctl_handle_int(oidp, &v, 0, req); 1308 1309 if (error == 0 && req->newptr != NULL) { 1310 unsigned int newspeed = v; 1311 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1312 } 1313 1314 return (error); 1315 } 1316 1317 /* 1318 * Temperature functions. 1319 */ 1320 static int 1321 asmc_temp_getvalue(device_t dev, const char *key) 1322 { 1323 uint8_t buf[2]; 1324 1325 /* 1326 * Check for invalid temperatures. 1327 */ 1328 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1329 return (-1); 1330 1331 return (buf[0]); 1332 } 1333 1334 static int 1335 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1336 { 1337 device_t dev = (device_t) arg1; 1338 struct asmc_softc *sc = device_get_softc(dev); 1339 int error, val; 1340 1341 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1342 error = sysctl_handle_int(oidp, &val, 0, req); 1343 1344 return (error); 1345 } 1346 1347 /* 1348 * Sudden Motion Sensor functions. 1349 */ 1350 static int 1351 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1352 { 1353 uint8_t buf[2]; 1354 int error; 1355 1356 /* no need to do locking here as asmc_key_read() already does it */ 1357 switch (key[3]) { 1358 case 'X': 1359 case 'Y': 1360 case 'Z': 1361 error = asmc_key_read(dev, key, buf, sizeof buf); 1362 break; 1363 default: 1364 device_printf(dev, "%s called with invalid argument %s\n", 1365 __func__, key); 1366 error = 1; 1367 goto out; 1368 } 1369 *val = ((int16_t)buf[0] << 8) | buf[1]; 1370 out: 1371 return (error); 1372 } 1373 1374 static void 1375 asmc_sms_calibrate(device_t dev) 1376 { 1377 struct asmc_softc *sc = device_get_softc(dev); 1378 1379 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1380 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1381 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1382 } 1383 1384 static int 1385 asmc_sms_intrfast(void *arg) 1386 { 1387 uint8_t type; 1388 device_t dev = (device_t) arg; 1389 struct asmc_softc *sc = device_get_softc(dev); 1390 if (!sc->sc_sms_intr_works) 1391 return (FILTER_HANDLED); 1392 1393 mtx_lock_spin(&sc->sc_mtx); 1394 type = ASMC_INTPORT_READ(sc); 1395 mtx_unlock_spin(&sc->sc_mtx); 1396 1397 sc->sc_sms_intrtype = type; 1398 asmc_sms_printintr(dev, type); 1399 1400 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1401 return (FILTER_HANDLED); 1402 } 1403 1404 static void 1405 asmc_sms_printintr(device_t dev, uint8_t type) 1406 { 1407 struct asmc_softc *sc = device_get_softc(dev); 1408 1409 switch (type) { 1410 case ASMC_SMS_INTFF: 1411 device_printf(dev, "WARNING: possible free fall!\n"); 1412 break; 1413 case ASMC_SMS_INTHA: 1414 device_printf(dev, "WARNING: high acceleration detected!\n"); 1415 break; 1416 case ASMC_SMS_INTSH: 1417 device_printf(dev, "WARNING: possible shock!\n"); 1418 break; 1419 case ASMC_ALSL_INT2A: 1420 /* 1421 * This suppresses console and log messages for the ambient 1422 * light sensor for models known to generate this interrupt. 1423 */ 1424 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1425 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1426 break; 1427 /* FALLTHROUGH */ 1428 default: 1429 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1430 } 1431 } 1432 1433 static void 1434 asmc_sms_task(void *arg, int pending) 1435 { 1436 struct asmc_softc *sc = (struct asmc_softc *)arg; 1437 char notify[16]; 1438 int type; 1439 1440 switch (sc->sc_sms_intrtype) { 1441 case ASMC_SMS_INTFF: 1442 type = 2; 1443 break; 1444 case ASMC_SMS_INTHA: 1445 type = 1; 1446 break; 1447 case ASMC_SMS_INTSH: 1448 type = 0; 1449 break; 1450 default: 1451 type = 255; 1452 } 1453 1454 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1455 devctl_notify("ACPI", "asmc", "SMS", notify); 1456 } 1457 1458 static int 1459 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1460 { 1461 device_t dev = (device_t) arg1; 1462 int error; 1463 int16_t val; 1464 int32_t v; 1465 1466 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1467 v = (int32_t) val; 1468 error = sysctl_handle_int(oidp, &v, 0, req); 1469 1470 return (error); 1471 } 1472 1473 static int 1474 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1475 { 1476 device_t dev = (device_t) arg1; 1477 int error; 1478 int16_t val; 1479 int32_t v; 1480 1481 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1482 v = (int32_t) val; 1483 error = sysctl_handle_int(oidp, &v, 0, req); 1484 1485 return (error); 1486 } 1487 1488 static int 1489 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1490 { 1491 device_t dev = (device_t) arg1; 1492 int error; 1493 int16_t val; 1494 int32_t v; 1495 1496 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1497 v = (int32_t) val; 1498 error = sysctl_handle_int(oidp, &v, 0, req); 1499 1500 return (error); 1501 } 1502 1503 static int 1504 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1505 { 1506 device_t dev = (device_t) arg1; 1507 uint8_t buf[6]; 1508 int error; 1509 int32_t v; 1510 1511 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1512 v = buf[2]; 1513 error = sysctl_handle_int(oidp, &v, 0, req); 1514 1515 return (error); 1516 } 1517 1518 static int 1519 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1520 { 1521 device_t dev = (device_t) arg1; 1522 uint8_t buf[6]; 1523 int error; 1524 int32_t v; 1525 1526 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1527 v = buf[2]; 1528 error = sysctl_handle_int(oidp, &v, 0, req); 1529 1530 return (error); 1531 } 1532 1533 static int 1534 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1535 { 1536 device_t dev = (device_t) arg1; 1537 uint8_t buf[2]; 1538 int error; 1539 int v; 1540 1541 v = light_control; 1542 error = sysctl_handle_int(oidp, &v, 0, req); 1543 1544 if (error == 0 && req->newptr != NULL) { 1545 if (v < 0 || v > 255) 1546 return (EINVAL); 1547 light_control = v; 1548 buf[0] = light_control; 1549 buf[1] = 0x00; 1550 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1551 } 1552 return (error); 1553 } 1554 1555 static int 1556 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1557 { 1558 device_t dev = (device_t) arg1; 1559 uint8_t buf[10]; 1560 int error; 1561 uint32_t v; 1562 1563 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1564 1565 /* 1566 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1567 * 1568 * Extract it out manually here, then shift/clamp it. 1569 */ 1570 v = be32dec(&buf[6]); 1571 1572 /* 1573 * Shift out, clamp at 255; that way it looks like the 1574 * earlier SMC firmware version responses. 1575 */ 1576 v = v >> 8; 1577 if (v > 255) 1578 v = 255; 1579 1580 error = sysctl_handle_int(oidp, &v, 0, req); 1581 1582 return (error); 1583 } 1584