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_mb_sysctl_fanmanual(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 6,1 has no SMS */ 354 { 355 "Macmini6,1", "Apple SMC Mac Mini 6,1", 356 NULL, NULL, NULL, 357 ASMC_FAN_FUNCS2, 358 NULL, NULL, NULL, 359 ASMC_MM61_TEMPS, ASMC_MM61_TEMPNAMES, ASMC_MM61_TEMPDESCS 360 }, 361 362 /* The Mac Mini 6,2 has no SMS */ 363 { 364 "Macmini6,2", "Apple SMC Mac Mini 6,2", 365 NULL, NULL, NULL, 366 ASMC_FAN_FUNCS2, 367 NULL, NULL, NULL, 368 ASMC_MM62_TEMPS, ASMC_MM62_TEMPNAMES, ASMC_MM62_TEMPDESCS 369 }, 370 371 /* The Mac Mini 7,1 has no SMS */ 372 { 373 "Macmini7,1", "Apple SMC Mac Mini 7,1", 374 NULL, NULL, NULL, 375 ASMC_FAN_FUNCS2, 376 NULL, NULL, NULL, 377 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS 378 }, 379 380 /* Idem for the Mac Pro "Quad Core" (original) */ 381 { 382 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)", 383 NULL, NULL, NULL, 384 ASMC_FAN_FUNCS, 385 NULL, NULL, NULL, 386 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS 387 }, 388 389 /* Idem for the Mac Pro (8-core) */ 390 { 391 "MacPro2", "Apple SMC Mac Pro (8-core)", 392 NULL, NULL, NULL, 393 ASMC_FAN_FUNCS, 394 NULL, NULL, NULL, 395 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 396 }, 397 398 /* Idem for the MacPro 2010*/ 399 { 400 "MacPro5,1", "Apple SMC MacPro (2010)", 401 NULL, NULL, NULL, 402 ASMC_FAN_FUNCS, 403 NULL, NULL, NULL, 404 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 405 }, 406 407 /* Idem for the Mac Pro 2013 (cylinder) */ 408 { 409 "MacPro6,1", "Apple SMC Mac Pro (2013)", 410 ASMC_SMS_FUNCS_DISABLED, 411 ASMC_FAN_FUNCS2, 412 ASMC_LIGHT_FUNCS_DISABLED, 413 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 414 }, 415 416 { 417 "MacBookAir1,1", "Apple SMC MacBook Air", 418 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 419 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 420 }, 421 422 { 423 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 424 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL, 425 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 426 }, 427 428 { 429 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 430 ASMC_SMS_FUNCS_DISABLED, 431 ASMC_FAN_FUNCS2, 432 ASMC_LIGHT_FUNCS, 433 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 434 }, 435 436 { 437 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 438 ASMC_SMS_FUNCS_DISABLED, 439 ASMC_FAN_FUNCS2, 440 ASMC_LIGHT_FUNCS, 441 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 442 }, 443 444 { 445 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 446 ASMC_SMS_FUNCS_DISABLED, 447 ASMC_FAN_FUNCS2, 448 ASMC_LIGHT_FUNCS, 449 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 450 }, 451 452 { 453 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 454 ASMC_SMS_FUNCS_DISABLED, 455 ASMC_FAN_FUNCS2, 456 ASMC_LIGHT_FUNCS, 457 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 458 }, 459 { 460 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 461 ASMC_SMS_FUNCS_DISABLED, 462 ASMC_FAN_FUNCS2, 463 ASMC_LIGHT_FUNCS_10BYTE, 464 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 465 }, 466 { 467 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)", 468 ASMC_SMS_FUNCS_DISABLED, 469 ASMC_FAN_FUNCS2, 470 ASMC_LIGHT_FUNCS_10BYTE, 471 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 472 }, 473 { 474 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 475 ASMC_SMS_FUNCS_DISABLED, 476 ASMC_FAN_FUNCS2, 477 ASMC_LIGHT_FUNCS, 478 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 479 }, 480 { 481 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)", 482 ASMC_SMS_FUNCS_DISABLED, 483 ASMC_FAN_FUNCS2, 484 ASMC_LIGHT_FUNCS, 485 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 486 }, 487 { NULL, NULL } 488 }; 489 490 #undef ASMC_SMS_FUNCS 491 #undef ASMC_SMS_FUNCS_DISABLED 492 #undef ASMC_FAN_FUNCS 493 #undef ASMC_FAN_FUNCS2 494 #undef ASMC_LIGHT_FUNCS 495 496 /* 497 * Driver methods. 498 */ 499 static device_method_t asmc_methods[] = { 500 DEVMETHOD(device_probe, asmc_probe), 501 DEVMETHOD(device_attach, asmc_attach), 502 DEVMETHOD(device_detach, asmc_detach), 503 DEVMETHOD(device_resume, asmc_resume), 504 { 0, 0 } 505 }; 506 507 static driver_t asmc_driver = { 508 "asmc", 509 asmc_methods, 510 sizeof(struct asmc_softc) 511 }; 512 513 /* 514 * Debugging 515 */ 516 #define _COMPONENT ACPI_OEM 517 ACPI_MODULE_NAME("ASMC") 518 #ifdef DEBUG 519 #define ASMC_DPRINTF(str) device_printf(dev, str) 520 #else 521 #define ASMC_DPRINTF(str) 522 #endif 523 524 /* NB: can't be const */ 525 static char *asmc_ids[] = { "APP0001", NULL }; 526 527 static unsigned int light_control = 0; 528 529 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 530 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 531 532 static const struct asmc_model * 533 asmc_match(device_t dev) 534 { 535 int i; 536 char *model; 537 538 model = kern_getenv("smbios.system.product"); 539 if (model == NULL) 540 return (NULL); 541 542 for (i = 0; asmc_models[i].smc_model; i++) { 543 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 544 freeenv(model); 545 return (&asmc_models[i]); 546 } 547 } 548 freeenv(model); 549 550 return (NULL); 551 } 552 553 static int 554 asmc_probe(device_t dev) 555 { 556 const struct asmc_model *model; 557 int rv; 558 559 if (resource_disabled("asmc", 0)) 560 return (ENXIO); 561 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 562 if (rv > 0) 563 return (rv); 564 565 model = asmc_match(dev); 566 if (!model) { 567 device_printf(dev, "model not recognized\n"); 568 return (ENXIO); 569 } 570 device_set_desc(dev, model->smc_desc); 571 572 return (rv); 573 } 574 575 static int 576 asmc_attach(device_t dev) 577 { 578 int i, j; 579 int ret; 580 char name[2]; 581 struct asmc_softc *sc = device_get_softc(dev); 582 struct sysctl_ctx_list *sysctlctx; 583 struct sysctl_oid *sysctlnode; 584 const struct asmc_model *model; 585 586 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 587 &sc->sc_rid_port, RF_ACTIVE); 588 if (sc->sc_ioport == NULL) { 589 device_printf(dev, "unable to allocate IO port\n"); 590 return (ENOMEM); 591 } 592 593 sysctlctx = device_get_sysctl_ctx(dev); 594 sysctlnode = device_get_sysctl_tree(dev); 595 596 model = asmc_match(dev); 597 598 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 599 600 sc->sc_model = model; 601 asmc_init(dev); 602 603 /* 604 * dev.asmc.n.fan.* tree. 605 */ 606 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 607 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 608 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 609 610 for (i = 1; i <= sc->sc_nfan; i++) { 611 j = i - 1; 612 name[0] = '0' + j; 613 name[1] = 0; 614 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 615 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 616 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 617 "Fan Subtree"); 618 619 SYSCTL_ADD_PROC(sysctlctx, 620 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 621 OID_AUTO, "id", 622 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 623 dev, j, model->smc_fan_id, "I", 624 "Fan ID"); 625 626 SYSCTL_ADD_PROC(sysctlctx, 627 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 628 OID_AUTO, "speed", 629 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 630 dev, j, model->smc_fan_speed, "I", 631 "Fan speed in RPM"); 632 633 SYSCTL_ADD_PROC(sysctlctx, 634 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 635 OID_AUTO, "safespeed", 636 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 637 dev, j, model->smc_fan_safespeed, "I", 638 "Fan safe speed in RPM"); 639 640 SYSCTL_ADD_PROC(sysctlctx, 641 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 642 OID_AUTO, "minspeed", 643 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 644 dev, j, model->smc_fan_minspeed, "I", 645 "Fan minimum speed in RPM"); 646 647 SYSCTL_ADD_PROC(sysctlctx, 648 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 649 OID_AUTO, "maxspeed", 650 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 651 dev, j, model->smc_fan_maxspeed, "I", 652 "Fan maximum speed in RPM"); 653 654 SYSCTL_ADD_PROC(sysctlctx, 655 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 656 OID_AUTO, "targetspeed", 657 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 658 dev, j, model->smc_fan_targetspeed, "I", 659 "Fan target speed in RPM"); 660 661 SYSCTL_ADD_PROC(sysctlctx, 662 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 663 OID_AUTO, "manual", 664 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 665 dev, j, asmc_mb_sysctl_fanmanual, "I", 666 "Fan manual mode (0=auto, 1=manual)"); 667 } 668 669 /* 670 * dev.asmc.n.temp tree. 671 */ 672 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 673 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 674 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 675 676 for (i = 0; model->smc_temps[i]; i++) { 677 SYSCTL_ADD_PROC(sysctlctx, 678 SYSCTL_CHILDREN(sc->sc_temp_tree), 679 OID_AUTO, model->smc_tempnames[i], 680 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 681 dev, i, asmc_temp_sysctl, "I", 682 model->smc_tempdescs[i]); 683 } 684 685 /* 686 * dev.asmc.n.light 687 */ 688 if (model->smc_light_left) { 689 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 690 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 691 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 692 "Keyboard backlight sensors"); 693 694 SYSCTL_ADD_PROC(sysctlctx, 695 SYSCTL_CHILDREN(sc->sc_light_tree), 696 OID_AUTO, "left", 697 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 698 dev, 0, model->smc_light_left, "I", 699 "Keyboard backlight left sensor"); 700 701 SYSCTL_ADD_PROC(sysctlctx, 702 SYSCTL_CHILDREN(sc->sc_light_tree), 703 OID_AUTO, "right", 704 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 705 dev, 0, model->smc_light_right, "I", 706 "Keyboard backlight right sensor"); 707 708 SYSCTL_ADD_PROC(sysctlctx, 709 SYSCTL_CHILDREN(sc->sc_light_tree), 710 OID_AUTO, "control", 711 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 712 CTLFLAG_NEEDGIANT, dev, 0, 713 model->smc_light_control, "I", 714 "Keyboard backlight brightness control"); 715 } 716 717 if (model->smc_sms_x == NULL) 718 goto nosms; 719 720 /* 721 * dev.asmc.n.sms tree. 722 */ 723 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 724 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 725 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 726 727 SYSCTL_ADD_PROC(sysctlctx, 728 SYSCTL_CHILDREN(sc->sc_sms_tree), 729 OID_AUTO, "x", 730 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 731 dev, 0, model->smc_sms_x, "I", 732 "Sudden Motion Sensor X value"); 733 734 SYSCTL_ADD_PROC(sysctlctx, 735 SYSCTL_CHILDREN(sc->sc_sms_tree), 736 OID_AUTO, "y", 737 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 738 dev, 0, model->smc_sms_y, "I", 739 "Sudden Motion Sensor Y value"); 740 741 SYSCTL_ADD_PROC(sysctlctx, 742 SYSCTL_CHILDREN(sc->sc_sms_tree), 743 OID_AUTO, "z", 744 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 745 dev, 0, model->smc_sms_z, "I", 746 "Sudden Motion Sensor Z value"); 747 748 /* 749 * Need a taskqueue to send devctl_notify() events 750 * when the SMS interrupt us. 751 * 752 * PI_REALTIME is used due to the sensitivity of the 753 * interrupt. An interrupt from the SMS means that the 754 * disk heads should be turned off as quickly as possible. 755 * 756 * We only need to do this for the non INTR_FILTER case. 757 */ 758 sc->sc_sms_tq = NULL; 759 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 760 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 761 taskqueue_thread_enqueue, &sc->sc_sms_tq); 762 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 763 device_get_nameunit(dev)); 764 /* 765 * Allocate an IRQ for the SMS. 766 */ 767 sc->sc_rid_irq = 0; 768 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 769 &sc->sc_rid_irq, RF_ACTIVE); 770 if (sc->sc_irq == NULL) { 771 device_printf(dev, "unable to allocate IRQ resource\n"); 772 ret = ENXIO; 773 goto err2; 774 } 775 776 ret = bus_setup_intr(dev, sc->sc_irq, 777 INTR_TYPE_MISC | INTR_MPSAFE, 778 asmc_sms_intrfast, NULL, 779 dev, &sc->sc_cookie); 780 781 if (ret) { 782 device_printf(dev, "unable to setup SMS IRQ\n"); 783 goto err1; 784 } 785 nosms: 786 return (0); 787 err1: 788 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 789 err2: 790 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 791 sc->sc_ioport); 792 mtx_destroy(&sc->sc_mtx); 793 if (sc->sc_sms_tq) 794 taskqueue_free(sc->sc_sms_tq); 795 796 return (ret); 797 } 798 799 static int 800 asmc_detach(device_t dev) 801 { 802 struct asmc_softc *sc = device_get_softc(dev); 803 804 if (sc->sc_sms_tq) { 805 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 806 taskqueue_free(sc->sc_sms_tq); 807 } 808 if (sc->sc_cookie) 809 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 810 if (sc->sc_irq) 811 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 812 sc->sc_irq); 813 if (sc->sc_ioport) 814 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 815 sc->sc_ioport); 816 mtx_destroy(&sc->sc_mtx); 817 818 return (0); 819 } 820 821 static int 822 asmc_resume(device_t dev) 823 { 824 uint8_t buf[2]; 825 buf[0] = light_control; 826 buf[1] = 0x00; 827 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 828 return (0); 829 } 830 831 #ifdef DEBUG 832 void asmc_dumpall(device_t dev) 833 { 834 struct asmc_softc *sc = device_get_softc(dev); 835 int i; 836 837 if (sc->sc_nkeys == 0) { 838 device_printf(dev, "asmc_dumpall: key count not available\n"); 839 return; 840 } 841 842 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys); 843 for (i = 0; i < sc->sc_nkeys; i++) 844 asmc_key_dump(dev, i); 845 } 846 #endif 847 848 static int 849 asmc_init(device_t dev) 850 { 851 struct asmc_softc *sc = device_get_softc(dev); 852 int i, error = 1; 853 uint8_t buf[4]; 854 855 if (sc->sc_model->smc_sms_x == NULL) 856 goto nosms; 857 858 /* 859 * We are ready to receive interrupts from the SMS. 860 */ 861 buf[0] = 0x01; 862 ASMC_DPRINTF(("intok key\n")); 863 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 864 DELAY(50); 865 866 /* 867 * Initiate the polling intervals. 868 */ 869 buf[0] = 20; /* msecs */ 870 ASMC_DPRINTF(("low int key\n")); 871 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 872 DELAY(200); 873 874 buf[0] = 20; /* msecs */ 875 ASMC_DPRINTF(("high int key\n")); 876 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 877 DELAY(200); 878 879 buf[0] = 0x00; 880 buf[1] = 0x60; 881 ASMC_DPRINTF(("sms low key\n")); 882 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 883 DELAY(200); 884 885 buf[0] = 0x01; 886 buf[1] = 0xc0; 887 ASMC_DPRINTF(("sms high key\n")); 888 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 889 DELAY(200); 890 891 /* 892 * I'm not sure what this key does, but it seems to be 893 * required. 894 */ 895 buf[0] = 0x01; 896 ASMC_DPRINTF(("sms flag key\n")); 897 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 898 DELAY(100); 899 900 sc->sc_sms_intr_works = 0; 901 902 /* 903 * Retry SMS initialization 1000 times 904 * (takes approx. 2 seconds in worst case) 905 */ 906 for (i = 0; i < 1000; i++) { 907 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 908 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 909 error = 0; 910 sc->sc_sms_intr_works = 1; 911 goto out; 912 } 913 buf[0] = ASMC_SMS_INIT1; 914 buf[1] = ASMC_SMS_INIT2; 915 ASMC_DPRINTF(("sms key\n")); 916 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 917 DELAY(50); 918 } 919 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 920 921 out: 922 asmc_sms_calibrate(dev); 923 nosms: 924 sc->sc_nfan = asmc_fan_count(dev); 925 if (sc->sc_nfan > ASMC_MAXFANS) { 926 device_printf(dev, "more than %d fans were detected. Please " 927 "report this.\n", ASMC_MAXFANS); 928 sc->sc_nfan = ASMC_MAXFANS; 929 } 930 931 /* 932 * Read and cache the number of SMC keys (32 bit buffer) 933 */ 934 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) { 935 sc->sc_nkeys = be32dec(buf); 936 if (bootverbose) 937 device_printf(dev, "number of keys: %d\n", sc->sc_nkeys); 938 } else { 939 sc->sc_nkeys = 0; 940 } 941 942 #ifdef DEBUG 943 asmc_dumpall(dev); 944 #endif 945 946 return (error); 947 } 948 949 /* 950 * We need to make sure that the SMC acks the byte sent. 951 * Just wait up to (amount * 10) ms. 952 */ 953 static int 954 asmc_wait_ack(device_t dev, uint8_t val, int amount) 955 { 956 struct asmc_softc *sc = device_get_softc(dev); 957 u_int i; 958 959 val = val & ASMC_STATUS_MASK; 960 961 for (i = 0; i < amount; i++) { 962 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 963 return (0); 964 DELAY(10); 965 } 966 967 return (1); 968 } 969 970 /* 971 * We need to make sure that the SMC acks the byte sent. 972 * Just wait up to 100 ms. 973 */ 974 static int 975 asmc_wait(device_t dev, uint8_t val) 976 { 977 #ifdef DEBUG 978 struct asmc_softc *sc; 979 #endif 980 981 if (asmc_wait_ack(dev, val, 1000) == 0) 982 return (0); 983 984 #ifdef DEBUG 985 sc = device_get_softc(dev); 986 #endif 987 val = val & ASMC_STATUS_MASK; 988 989 #ifdef DEBUG 990 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 991 ASMC_CMDPORT_READ(sc)); 992 #endif 993 return (1); 994 } 995 996 /* 997 * Send the given command, retrying up to 10 times if 998 * the acknowledgement fails. 999 */ 1000 static int 1001 asmc_command(device_t dev, uint8_t command) { 1002 int i; 1003 struct asmc_softc *sc = device_get_softc(dev); 1004 1005 for (i=0; i < 10; i++) { 1006 ASMC_CMDPORT_WRITE(sc, command); 1007 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 1008 return (0); 1009 } 1010 } 1011 1012 #ifdef DEBUG 1013 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 1014 ASMC_CMDPORT_READ(sc)); 1015 #endif 1016 return (1); 1017 } 1018 1019 static int 1020 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1021 { 1022 int i, error = 1, try = 0; 1023 struct asmc_softc *sc = device_get_softc(dev); 1024 1025 mtx_lock_spin(&sc->sc_mtx); 1026 1027 begin: 1028 if (asmc_command(dev, ASMC_CMDREAD)) 1029 goto out; 1030 1031 for (i = 0; i < 4; i++) { 1032 ASMC_DATAPORT_WRITE(sc, key[i]); 1033 if (asmc_wait(dev, 0x04)) 1034 goto out; 1035 } 1036 1037 ASMC_DATAPORT_WRITE(sc, len); 1038 1039 for (i = 0; i < len; i++) { 1040 if (asmc_wait(dev, 0x05)) 1041 goto out; 1042 buf[i] = ASMC_DATAPORT_READ(sc); 1043 } 1044 1045 error = 0; 1046 out: 1047 if (error) { 1048 if (++try < 10) goto begin; 1049 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1050 __func__, key, try); 1051 } 1052 1053 mtx_unlock_spin(&sc->sc_mtx); 1054 1055 return (error); 1056 } 1057 1058 #ifdef DEBUG 1059 static int 1060 asmc_key_dump(device_t dev, int number) 1061 { 1062 struct asmc_softc *sc = device_get_softc(dev); 1063 char key[5] = { 0 }; 1064 char type[7] = { 0 }; 1065 uint8_t index[4]; 1066 uint8_t v[32]; 1067 uint8_t maxlen; 1068 int i, error = 1, try = 0; 1069 1070 mtx_lock_spin(&sc->sc_mtx); 1071 1072 index[0] = (number >> 24) & 0xff; 1073 index[1] = (number >> 16) & 0xff; 1074 index[2] = (number >> 8) & 0xff; 1075 index[3] = (number) & 0xff; 1076 1077 begin: 1078 if (asmc_command(dev, 0x12)) 1079 goto out; 1080 1081 for (i = 0; i < 4; i++) { 1082 ASMC_DATAPORT_WRITE(sc, index[i]); 1083 if (asmc_wait(dev, 0x04)) 1084 goto out; 1085 } 1086 1087 ASMC_DATAPORT_WRITE(sc, 4); 1088 1089 for (i = 0; i < 4; i++) { 1090 if (asmc_wait(dev, 0x05)) 1091 goto out; 1092 key[i] = ASMC_DATAPORT_READ(sc); 1093 } 1094 1095 /* get type */ 1096 if (asmc_command(dev, 0x13)) 1097 goto out; 1098 1099 for (i = 0; i < 4; i++) { 1100 ASMC_DATAPORT_WRITE(sc, key[i]); 1101 if (asmc_wait(dev, 0x04)) 1102 goto out; 1103 } 1104 1105 ASMC_DATAPORT_WRITE(sc, 6); 1106 1107 for (i = 0; i < 6; i++) { 1108 if (asmc_wait(dev, 0x05)) 1109 goto out; 1110 type[i] = ASMC_DATAPORT_READ(sc); 1111 } 1112 1113 error = 0; 1114 out: 1115 if (error) { 1116 if (++try < 10) goto begin; 1117 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1118 __func__, key, try); 1119 mtx_unlock_spin(&sc->sc_mtx); 1120 } 1121 else { 1122 char buf[1024]; 1123 char buf2[8]; 1124 mtx_unlock_spin(&sc->sc_mtx); 1125 maxlen = type[0]; 1126 type[0] = ' '; 1127 type[5] = 0; 1128 if (maxlen > sizeof(v)) { 1129 device_printf(dev, 1130 "WARNING: cropping maxlen from %d to %zu\n", 1131 maxlen, sizeof(v)); 1132 maxlen = sizeof(v); 1133 } 1134 for (i = 0; i < sizeof(v); i++) { 1135 v[i] = 0; 1136 } 1137 asmc_key_read(dev, key, v, maxlen); 1138 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1139 "(len %d), data", number, key, type, maxlen); 1140 for (i = 0; i < maxlen; i++) { 1141 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1142 strlcat(buf, buf2, sizeof(buf)); 1143 } 1144 strlcat(buf, " \n", sizeof(buf)); 1145 device_printf(dev, "%s", buf); 1146 } 1147 1148 return (error); 1149 } 1150 #endif 1151 1152 static int 1153 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1154 { 1155 int i, error = -1, try = 0; 1156 struct asmc_softc *sc = device_get_softc(dev); 1157 1158 mtx_lock_spin(&sc->sc_mtx); 1159 1160 begin: 1161 ASMC_DPRINTF(("cmd port: cmd write\n")); 1162 if (asmc_command(dev, ASMC_CMDWRITE)) 1163 goto out; 1164 1165 ASMC_DPRINTF(("data port: key\n")); 1166 for (i = 0; i < 4; i++) { 1167 ASMC_DATAPORT_WRITE(sc, key[i]); 1168 if (asmc_wait(dev, 0x04)) 1169 goto out; 1170 } 1171 ASMC_DPRINTF(("data port: length\n")); 1172 ASMC_DATAPORT_WRITE(sc, len); 1173 1174 ASMC_DPRINTF(("data port: buffer\n")); 1175 for (i = 0; i < len; i++) { 1176 if (asmc_wait(dev, 0x04)) 1177 goto out; 1178 ASMC_DATAPORT_WRITE(sc, buf[i]); 1179 } 1180 1181 error = 0; 1182 out: 1183 if (error) { 1184 if (++try < 10) goto begin; 1185 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1186 __func__, key, try); 1187 } 1188 1189 mtx_unlock_spin(&sc->sc_mtx); 1190 1191 return (error); 1192 1193 } 1194 1195 /* 1196 * Fan control functions. 1197 */ 1198 static int 1199 asmc_fan_count(device_t dev) 1200 { 1201 uint8_t buf[1]; 1202 1203 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1204 return (-1); 1205 1206 return (buf[0]); 1207 } 1208 1209 static int 1210 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1211 { 1212 int speed; 1213 uint8_t buf[2]; 1214 char fankey[5]; 1215 1216 snprintf(fankey, sizeof(fankey), key, fan); 1217 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1218 return (-1); 1219 speed = (buf[0] << 6) | (buf[1] >> 2); 1220 1221 return (speed); 1222 } 1223 1224 static char* 1225 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, uint8_t buflen) 1226 { 1227 char fankey[5]; 1228 char* desc; 1229 1230 snprintf(fankey, sizeof(fankey), key, fan); 1231 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1232 return (NULL); 1233 desc = buf+4; 1234 1235 return (desc); 1236 } 1237 1238 static int 1239 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1240 { 1241 uint8_t buf[2]; 1242 char fankey[5]; 1243 1244 speed *= 4; 1245 1246 buf[0] = speed>>8; 1247 buf[1] = speed; 1248 1249 snprintf(fankey, sizeof(fankey), key, fan); 1250 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1251 return (-1); 1252 1253 return (0); 1254 } 1255 1256 static int 1257 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1258 { 1259 device_t dev = (device_t) arg1; 1260 int fan = arg2; 1261 int error; 1262 int32_t v; 1263 1264 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1265 error = sysctl_handle_int(oidp, &v, 0, req); 1266 1267 return (error); 1268 } 1269 1270 static int 1271 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1272 { 1273 uint8_t buf[16]; 1274 device_t dev = (device_t) arg1; 1275 int fan = arg2; 1276 int error = true; 1277 char* desc; 1278 1279 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1280 1281 if (desc != NULL) 1282 error = sysctl_handle_string(oidp, desc, 0, req); 1283 1284 return (error); 1285 } 1286 1287 static int 1288 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS) 1289 { 1290 device_t dev = (device_t) arg1; 1291 int fan = arg2; 1292 int error; 1293 int32_t v; 1294 1295 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan); 1296 error = sysctl_handle_int(oidp, &v, 0, req); 1297 1298 return (error); 1299 } 1300 1301 static int 1302 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1303 { 1304 device_t dev = (device_t) arg1; 1305 int fan = arg2; 1306 int error; 1307 int32_t v; 1308 1309 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1310 error = sysctl_handle_int(oidp, &v, 0, req); 1311 1312 if (error == 0 && req->newptr != NULL) { 1313 unsigned int newspeed = v; 1314 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1315 } 1316 1317 return (error); 1318 } 1319 1320 static int 1321 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1322 { 1323 device_t dev = (device_t) arg1; 1324 int fan = arg2; 1325 int error; 1326 int32_t v; 1327 1328 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1329 error = sysctl_handle_int(oidp, &v, 0, req); 1330 1331 if (error == 0 && req->newptr != NULL) { 1332 unsigned int newspeed = v; 1333 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1334 } 1335 1336 return (error); 1337 } 1338 1339 static int 1340 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1341 { 1342 device_t dev = (device_t) arg1; 1343 int fan = arg2; 1344 int error; 1345 int32_t v; 1346 1347 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1348 error = sysctl_handle_int(oidp, &v, 0, req); 1349 1350 if (error == 0 && req->newptr != NULL) { 1351 unsigned int newspeed = v; 1352 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1353 } 1354 1355 return (error); 1356 } 1357 1358 static int 1359 asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS) 1360 { 1361 device_t dev = (device_t) arg1; 1362 int fan = arg2; 1363 int error; 1364 int32_t v; 1365 uint8_t buf[2]; 1366 uint16_t val; 1367 1368 /* Read current FS! bitmask (asmc_key_read locks internally) */ 1369 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1370 if (error != 0) 1371 return (error); 1372 1373 /* Extract manual bit for this fan (big-endian) */ 1374 val = (buf[0] << 8) | buf[1]; 1375 v = (val >> fan) & 0x01; 1376 1377 /* Let sysctl handle the value */ 1378 error = sysctl_handle_int(oidp, &v, 0, req); 1379 1380 if (error == 0 && req->newptr != NULL) { 1381 /* Validate input (0 = auto, 1 = manual) */ 1382 if (v != 0 && v != 1) 1383 return (EINVAL); 1384 /* Read-modify-write of FS! bitmask */ 1385 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1386 if (error == 0) { 1387 val = (buf[0] << 8) | buf[1]; 1388 1389 /* Modify single bit */ 1390 if (v) 1391 val |= (1 << fan); /* Set to manual */ 1392 else 1393 val &= ~(1 << fan); /* Set to auto */ 1394 1395 /* Write back */ 1396 buf[0] = val >> 8; 1397 buf[1] = val & 0xff; 1398 error = asmc_key_write(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1399 } 1400 } 1401 1402 return (error); 1403 } 1404 1405 /* 1406 * Temperature functions. 1407 */ 1408 static int 1409 asmc_temp_getvalue(device_t dev, const char *key) 1410 { 1411 uint8_t buf[2]; 1412 1413 /* 1414 * Check for invalid temperatures. 1415 */ 1416 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1417 return (-1); 1418 1419 return (buf[0]); 1420 } 1421 1422 static int 1423 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1424 { 1425 device_t dev = (device_t) arg1; 1426 struct asmc_softc *sc = device_get_softc(dev); 1427 int error, val; 1428 1429 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1430 error = sysctl_handle_int(oidp, &val, 0, req); 1431 1432 return (error); 1433 } 1434 1435 /* 1436 * Sudden Motion Sensor functions. 1437 */ 1438 static int 1439 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1440 { 1441 uint8_t buf[2]; 1442 int error; 1443 1444 /* no need to do locking here as asmc_key_read() already does it */ 1445 switch (key[3]) { 1446 case 'X': 1447 case 'Y': 1448 case 'Z': 1449 error = asmc_key_read(dev, key, buf, sizeof buf); 1450 break; 1451 default: 1452 device_printf(dev, "%s called with invalid argument %s\n", 1453 __func__, key); 1454 error = 1; 1455 goto out; 1456 } 1457 *val = ((int16_t)buf[0] << 8) | buf[1]; 1458 out: 1459 return (error); 1460 } 1461 1462 static void 1463 asmc_sms_calibrate(device_t dev) 1464 { 1465 struct asmc_softc *sc = device_get_softc(dev); 1466 1467 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1468 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1469 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1470 } 1471 1472 static int 1473 asmc_sms_intrfast(void *arg) 1474 { 1475 uint8_t type; 1476 device_t dev = (device_t) arg; 1477 struct asmc_softc *sc = device_get_softc(dev); 1478 if (!sc->sc_sms_intr_works) 1479 return (FILTER_HANDLED); 1480 1481 mtx_lock_spin(&sc->sc_mtx); 1482 type = ASMC_INTPORT_READ(sc); 1483 mtx_unlock_spin(&sc->sc_mtx); 1484 1485 sc->sc_sms_intrtype = type; 1486 asmc_sms_printintr(dev, type); 1487 1488 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1489 return (FILTER_HANDLED); 1490 } 1491 1492 static void 1493 asmc_sms_printintr(device_t dev, uint8_t type) 1494 { 1495 struct asmc_softc *sc = device_get_softc(dev); 1496 1497 switch (type) { 1498 case ASMC_SMS_INTFF: 1499 device_printf(dev, "WARNING: possible free fall!\n"); 1500 break; 1501 case ASMC_SMS_INTHA: 1502 device_printf(dev, "WARNING: high acceleration detected!\n"); 1503 break; 1504 case ASMC_SMS_INTSH: 1505 device_printf(dev, "WARNING: possible shock!\n"); 1506 break; 1507 case ASMC_ALSL_INT2A: 1508 /* 1509 * This suppresses console and log messages for the ambient 1510 * light sensor for models known to generate this interrupt. 1511 */ 1512 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1513 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1514 break; 1515 /* FALLTHROUGH */ 1516 default: 1517 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1518 } 1519 } 1520 1521 static void 1522 asmc_sms_task(void *arg, int pending) 1523 { 1524 struct asmc_softc *sc = (struct asmc_softc *)arg; 1525 char notify[16]; 1526 int type; 1527 1528 switch (sc->sc_sms_intrtype) { 1529 case ASMC_SMS_INTFF: 1530 type = 2; 1531 break; 1532 case ASMC_SMS_INTHA: 1533 type = 1; 1534 break; 1535 case ASMC_SMS_INTSH: 1536 type = 0; 1537 break; 1538 default: 1539 type = 255; 1540 } 1541 1542 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1543 devctl_notify("ACPI", "asmc", "SMS", notify); 1544 } 1545 1546 static int 1547 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1548 { 1549 device_t dev = (device_t) arg1; 1550 int error; 1551 int16_t val; 1552 int32_t v; 1553 1554 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1555 v = (int32_t) val; 1556 error = sysctl_handle_int(oidp, &v, 0, req); 1557 1558 return (error); 1559 } 1560 1561 static int 1562 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1563 { 1564 device_t dev = (device_t) arg1; 1565 int error; 1566 int16_t val; 1567 int32_t v; 1568 1569 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1570 v = (int32_t) val; 1571 error = sysctl_handle_int(oidp, &v, 0, req); 1572 1573 return (error); 1574 } 1575 1576 static int 1577 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1578 { 1579 device_t dev = (device_t) arg1; 1580 int error; 1581 int16_t val; 1582 int32_t v; 1583 1584 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1585 v = (int32_t) val; 1586 error = sysctl_handle_int(oidp, &v, 0, req); 1587 1588 return (error); 1589 } 1590 1591 static int 1592 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1593 { 1594 device_t dev = (device_t) arg1; 1595 uint8_t buf[6]; 1596 int error; 1597 int32_t v; 1598 1599 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1600 v = buf[2]; 1601 error = sysctl_handle_int(oidp, &v, 0, req); 1602 1603 return (error); 1604 } 1605 1606 static int 1607 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1608 { 1609 device_t dev = (device_t) arg1; 1610 uint8_t buf[6]; 1611 int error; 1612 int32_t v; 1613 1614 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1615 v = buf[2]; 1616 error = sysctl_handle_int(oidp, &v, 0, req); 1617 1618 return (error); 1619 } 1620 1621 static int 1622 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1623 { 1624 device_t dev = (device_t) arg1; 1625 uint8_t buf[2]; 1626 int error; 1627 int v; 1628 1629 v = light_control; 1630 error = sysctl_handle_int(oidp, &v, 0, req); 1631 1632 if (error == 0 && req->newptr != NULL) { 1633 if (v < 0 || v > 255) 1634 return (EINVAL); 1635 light_control = v; 1636 buf[0] = light_control; 1637 buf[1] = 0x00; 1638 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1639 } 1640 return (error); 1641 } 1642 1643 static int 1644 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1645 { 1646 device_t dev = (device_t) arg1; 1647 uint8_t buf[10]; 1648 int error; 1649 uint32_t v; 1650 1651 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1652 1653 /* 1654 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1655 * 1656 * Extract it out manually here, then shift/clamp it. 1657 */ 1658 v = be32dec(&buf[6]); 1659 1660 /* 1661 * Shift out, clamp at 255; that way it looks like the 1662 * earlier SMC firmware version responses. 1663 */ 1664 v = v >> 8; 1665 if (v > 255) 1666 v = 255; 1667 1668 error = sysctl_handle_int(oidp, &v, 0, req); 1669 1670 return (error); 1671 } 1672