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 "opt_asmc.h" 38 39 #include <sys/param.h> 40 #include <sys/bus.h> 41 #include <sys/conf.h> 42 #include <sys/endian.h> 43 #include <sys/kernel.h> 44 #include <sys/lock.h> 45 #include <sys/malloc.h> 46 #include <sys/module.h> 47 #include <sys/mutex.h> 48 #include <sys/sysctl.h> 49 #include <sys/systm.h> 50 #include <sys/taskqueue.h> 51 #include <sys/rman.h> 52 53 #include <machine/resource.h> 54 55 #include <contrib/dev/acpica/include/acpi.h> 56 57 #include <dev/acpica/acpivar.h> 58 #include <dev/asmc/asmcvar.h> 59 60 /* 61 * Device interface. 62 */ 63 static int asmc_probe(device_t dev); 64 static int asmc_attach(device_t dev); 65 static int asmc_detach(device_t dev); 66 static int asmc_resume(device_t dev); 67 68 /* 69 * SMC functions. 70 */ 71 static int asmc_init(device_t dev); 72 static int asmc_command(device_t dev, uint8_t command); 73 static int asmc_wait(device_t dev, uint8_t val); 74 static int asmc_wait_ack(device_t dev, uint8_t val, int amount); 75 static int asmc_key_write(device_t dev, const char *key, uint8_t *buf, 76 uint8_t len); 77 static int asmc_key_read(device_t dev, const char *key, uint8_t *buf, 78 uint8_t); 79 static int asmc_fan_count(device_t dev); 80 static int asmc_fan_getvalue(device_t dev, const char *key, int fan); 81 static int asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed); 82 static int asmc_temp_getvalue(device_t dev, const char *key); 83 static int asmc_sms_read(device_t, const char *key, int16_t *val); 84 static void asmc_sms_calibrate(device_t dev); 85 static int asmc_sms_intrfast(void *arg); 86 static void asmc_sms_printintr(device_t dev, uint8_t); 87 static void asmc_sms_task(void *arg, int pending); 88 #ifdef ASMC_DEBUG 89 void asmc_dumpall(device_t); 90 static int asmc_key_dump(device_t, int); 91 #endif 92 93 /* 94 * Model functions. 95 */ 96 static int asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS); 97 static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS); 98 static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS); 99 static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS); 100 static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS); 101 static int asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS); 102 static int asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS); 103 static int asmc_temp_sysctl(SYSCTL_HANDLER_ARGS); 104 static int asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS); 105 static int asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS); 106 static int asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS); 107 static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS); 108 static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS); 109 static int asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS); 110 static int asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS); 111 112 struct asmc_model { 113 const char *smc_model; /* smbios.system.product env var. */ 114 const char *smc_desc; /* driver description */ 115 116 /* Helper functions */ 117 int (*smc_sms_x)(SYSCTL_HANDLER_ARGS); 118 int (*smc_sms_y)(SYSCTL_HANDLER_ARGS); 119 int (*smc_sms_z)(SYSCTL_HANDLER_ARGS); 120 int (*smc_fan_id)(SYSCTL_HANDLER_ARGS); 121 int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS); 122 int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS); 123 int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS); 124 int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS); 125 int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS); 126 int (*smc_light_left)(SYSCTL_HANDLER_ARGS); 127 int (*smc_light_right)(SYSCTL_HANDLER_ARGS); 128 int (*smc_light_control)(SYSCTL_HANDLER_ARGS); 129 130 const char *smc_temps[ASMC_TEMP_MAX]; 131 const char *smc_tempnames[ASMC_TEMP_MAX]; 132 const char *smc_tempdescs[ASMC_TEMP_MAX]; 133 }; 134 135 static const struct asmc_model *asmc_match(device_t dev); 136 137 #define ASMC_SMS_FUNCS asmc_mb_sysctl_sms_x, asmc_mb_sysctl_sms_y, \ 138 asmc_mb_sysctl_sms_z 139 140 #define ASMC_SMS_FUNCS_DISABLED NULL, NULL, NULL 141 142 #define ASMC_FAN_FUNCS asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, asmc_mb_sysctl_fansafespeed, \ 143 asmc_mb_sysctl_fanminspeed, \ 144 asmc_mb_sysctl_fanmaxspeed, \ 145 asmc_mb_sysctl_fantargetspeed 146 147 #define ASMC_FAN_FUNCS2 asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, NULL, \ 148 asmc_mb_sysctl_fanminspeed, \ 149 asmc_mb_sysctl_fanmaxspeed, \ 150 asmc_mb_sysctl_fantargetspeed 151 152 #define ASMC_LIGHT_FUNCS asmc_mbp_sysctl_light_left, \ 153 asmc_mbp_sysctl_light_right, \ 154 asmc_mbp_sysctl_light_control 155 156 #define ASMC_LIGHT_FUNCS_10BYTE \ 157 asmc_mbp_sysctl_light_left_10byte, \ 158 NULL, \ 159 asmc_mbp_sysctl_light_control 160 161 #define ASMC_LIGHT_FUNCS_DISABLED NULL, NULL, NULL 162 163 static const struct asmc_model asmc_models[] = { 164 { 165 "MacBook1,1", "Apple SMC MacBook Core Duo", 166 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 167 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 168 }, 169 170 { 171 "MacBook2,1", "Apple SMC MacBook Core 2 Duo", 172 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 173 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS 174 }, 175 176 { 177 "MacBook3,1", "Apple SMC MacBook Core 2 Duo", 178 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 179 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS 180 }, 181 182 { 183 "MacBook7,1", "Apple SMC MacBook Core 2 Duo (mid 2010)", 184 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS_DISABLED, 185 ASMC_MB71_TEMPS, ASMC_MB71_TEMPNAMES, ASMC_MB71_TEMPDESCS 186 }, 187 188 { 189 "MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)", 190 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 191 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 192 }, 193 194 { 195 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)", 196 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 197 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 198 }, 199 200 { 201 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)", 202 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 203 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 204 }, 205 206 { 207 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)", 208 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 209 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 210 }, 211 212 { 213 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)", 214 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 215 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 216 }, 217 218 { 219 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)", 220 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 221 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS 222 }, 223 224 { 225 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)", 226 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 227 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS 228 }, 229 230 { 231 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)", 232 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 233 ASMC_MBP51_TEMPS, ASMC_MBP51_TEMPNAMES, ASMC_MBP51_TEMPDESCS 234 }, 235 236 { 237 "MacBookPro5,5", "Apple SMC MacBook Pro Core 2 Duo (Mid 2009)", 238 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 239 ASMC_MBP55_TEMPS, ASMC_MBP55_TEMPNAMES, ASMC_MBP55_TEMPDESCS 240 }, 241 242 { 243 "MacBookPro6,2", "Apple SMC MacBook Pro (Mid 2010, 15-inch)", 244 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 245 ASMC_MBP62_TEMPS, ASMC_MBP62_TEMPNAMES, ASMC_MBP62_TEMPDESCS 246 }, 247 248 { 249 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)", 250 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 251 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS 252 }, 253 254 { 255 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)", 256 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 257 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS 258 }, 259 260 { 261 "MacBookPro9,1", "Apple SMC MacBook Pro (mid 2012, 15-inch)", 262 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 263 ASMC_MBP91_TEMPS, ASMC_MBP91_TEMPNAMES, ASMC_MBP91_TEMPDESCS 264 }, 265 266 { 267 "MacBookPro9,2", "Apple SMC MacBook Pro (mid 2012, 13-inch)", 268 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 269 ASMC_MBP92_TEMPS, ASMC_MBP92_TEMPNAMES, ASMC_MBP92_TEMPDESCS 270 }, 271 272 { 273 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 274 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 275 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS 276 }, 277 278 { 279 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)", 280 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 281 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS 282 }, 283 284 { 285 "MacBookPro11,4", "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch)", 286 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS, 287 ASMC_MBP114_TEMPS, ASMC_MBP114_TEMPNAMES, ASMC_MBP114_TEMPDESCS 288 }, 289 290 { 291 "MacBookPro11,5", 292 "Apple SMC MacBook Pro Retina Core i7 (mid 2015, 15-inch, AMD GPU)", 293 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS, 294 ASMC_MBP115_TEMPS, ASMC_MBP115_TEMPNAMES, ASMC_MBP115_TEMPDESCS 295 }, 296 297 /* The Mac Mini has no SMS */ 298 { 299 "Macmini1,1", "Apple SMC Mac Mini", 300 ASMC_SMS_FUNCS_DISABLED, 301 ASMC_FAN_FUNCS, 302 ASMC_LIGHT_FUNCS_DISABLED, 303 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS 304 }, 305 306 /* The Mac Mini 2,1 has no SMS */ 307 { 308 "Macmini2,1", "Apple SMC Mac Mini 2,1", 309 ASMC_SMS_FUNCS_DISABLED, 310 ASMC_FAN_FUNCS, 311 ASMC_LIGHT_FUNCS_DISABLED, 312 ASMC_MM21_TEMPS, ASMC_MM21_TEMPNAMES, ASMC_MM21_TEMPDESCS 313 }, 314 315 /* The Mac Mini 3,1 has no SMS */ 316 { 317 "Macmini3,1", "Apple SMC Mac Mini 3,1", 318 ASMC_SMS_FUNCS_DISABLED, 319 ASMC_FAN_FUNCS, 320 ASMC_LIGHT_FUNCS_DISABLED, 321 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS 322 }, 323 324 /* The Mac Mini 4,1 (Mid-2010) has no SMS */ 325 { 326 "Macmini4,1", "Apple SMC Mac mini 4,1 (Mid-2010)", 327 ASMC_SMS_FUNCS_DISABLED, 328 ASMC_FAN_FUNCS, 329 ASMC_LIGHT_FUNCS_DISABLED, 330 ASMC_MM41_TEMPS, ASMC_MM41_TEMPNAMES, ASMC_MM41_TEMPDESCS 331 }, 332 333 /* The Mac Mini 5,1 has no SMS */ 334 /* - same sensors as Mac Mini 5,2 */ 335 { 336 "Macmini5,1", "Apple SMC Mac Mini 5,1", 337 ASMC_SMS_FUNCS_DISABLED, 338 ASMC_FAN_FUNCS2, 339 ASMC_LIGHT_FUNCS_DISABLED, 340 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 341 }, 342 343 /* The Mac Mini 5,2 has no SMS */ 344 { 345 "Macmini5,2", "Apple SMC Mac Mini 5,2", 346 ASMC_SMS_FUNCS_DISABLED, 347 ASMC_FAN_FUNCS2, 348 ASMC_LIGHT_FUNCS_DISABLED, 349 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 350 }, 351 352 /* The Mac Mini 5,3 has no SMS */ 353 /* - same sensors as Mac Mini 5,2 */ 354 { 355 "Macmini5,3", "Apple SMC Mac Mini 5,3", 356 ASMC_SMS_FUNCS_DISABLED, 357 ASMC_FAN_FUNCS2, 358 ASMC_LIGHT_FUNCS_DISABLED, 359 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS 360 }, 361 362 /* The Mac Mini 6,1 has no SMS */ 363 { 364 "Macmini6,1", "Apple SMC Mac Mini 6,1", 365 ASMC_SMS_FUNCS_DISABLED, 366 ASMC_FAN_FUNCS2, 367 ASMC_LIGHT_FUNCS_DISABLED, 368 ASMC_MM61_TEMPS, ASMC_MM61_TEMPNAMES, ASMC_MM61_TEMPDESCS 369 }, 370 371 /* The Mac Mini 6,2 has no SMS */ 372 { 373 "Macmini6,2", "Apple SMC Mac Mini 6,2", 374 ASMC_SMS_FUNCS_DISABLED, 375 ASMC_FAN_FUNCS2, 376 ASMC_LIGHT_FUNCS_DISABLED, 377 ASMC_MM62_TEMPS, ASMC_MM62_TEMPNAMES, ASMC_MM62_TEMPDESCS 378 }, 379 380 /* The Mac Mini 7,1 has no SMS */ 381 { 382 "Macmini7,1", "Apple SMC Mac Mini 7,1", 383 ASMC_SMS_FUNCS_DISABLED, 384 ASMC_FAN_FUNCS2, 385 ASMC_LIGHT_FUNCS_DISABLED, 386 ASMC_MM71_TEMPS, ASMC_MM71_TEMPNAMES, ASMC_MM71_TEMPDESCS 387 }, 388 389 /* Idem for the Mac Pro "Quad Core" (original) */ 390 { 391 "MacPro1,1", "Apple SMC Mac Pro (Quad Core)", 392 ASMC_SMS_FUNCS_DISABLED, 393 ASMC_FAN_FUNCS, 394 ASMC_LIGHT_FUNCS_DISABLED, 395 ASMC_MP1_TEMPS, ASMC_MP1_TEMPNAMES, ASMC_MP1_TEMPDESCS 396 }, 397 398 /* Idem for the Mac Pro (8-core) */ 399 { 400 "MacPro2", "Apple SMC Mac Pro (8-core)", 401 ASMC_SMS_FUNCS_DISABLED, 402 ASMC_FAN_FUNCS, 403 ASMC_LIGHT_FUNCS_DISABLED, 404 ASMC_MP2_TEMPS, ASMC_MP2_TEMPNAMES, ASMC_MP2_TEMPDESCS 405 }, 406 407 /* Idem for the MacPro 2010*/ 408 { 409 "MacPro5,1", "Apple SMC MacPro (2010)", 410 ASMC_SMS_FUNCS_DISABLED, 411 ASMC_FAN_FUNCS, 412 ASMC_LIGHT_FUNCS_DISABLED, 413 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS 414 }, 415 416 /* Idem for the Mac Pro 2013 (cylinder) */ 417 { 418 "MacPro6,1", "Apple SMC Mac Pro (2013)", 419 ASMC_SMS_FUNCS_DISABLED, 420 ASMC_FAN_FUNCS2, 421 ASMC_LIGHT_FUNCS_DISABLED, 422 ASMC_MP6_TEMPS, ASMC_MP6_TEMPNAMES, ASMC_MP6_TEMPDESCS 423 }, 424 425 { 426 "MacBookAir1,1", "Apple SMC MacBook Air", 427 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 428 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS 429 }, 430 431 { 432 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)", 433 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS_DISABLED, 434 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS 435 }, 436 437 { 438 "MacBookAir4,1", "Apple SMC Macbook Air 11-inch (Mid 2011)", 439 ASMC_SMS_FUNCS_DISABLED, 440 ASMC_FAN_FUNCS2, 441 ASMC_LIGHT_FUNCS, 442 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 443 }, 444 445 { 446 "MacBookAir4,2", "Apple SMC Macbook Air 13-inch (Mid 2011)", 447 ASMC_SMS_FUNCS_DISABLED, 448 ASMC_FAN_FUNCS2, 449 ASMC_LIGHT_FUNCS, 450 ASMC_MBA4_TEMPS, ASMC_MBA4_TEMPNAMES, ASMC_MBA4_TEMPDESCS 451 }, 452 453 { 454 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)", 455 ASMC_SMS_FUNCS_DISABLED, 456 ASMC_FAN_FUNCS2, 457 ASMC_LIGHT_FUNCS, 458 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 459 }, 460 461 { 462 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)", 463 ASMC_SMS_FUNCS_DISABLED, 464 ASMC_FAN_FUNCS2, 465 ASMC_LIGHT_FUNCS, 466 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS 467 }, 468 { 469 "MacBookAir6,1", "Apple SMC MacBook Air 11-inch (Early 2013)", 470 ASMC_SMS_FUNCS_DISABLED, 471 ASMC_FAN_FUNCS2, 472 ASMC_LIGHT_FUNCS_10BYTE, 473 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 474 }, 475 { 476 "MacBookAir6,2", "Apple SMC MacBook Air 13-inch (Early 2013)", 477 ASMC_SMS_FUNCS_DISABLED, 478 ASMC_FAN_FUNCS2, 479 ASMC_LIGHT_FUNCS_10BYTE, 480 ASMC_MBA6_TEMPS, ASMC_MBA6_TEMPNAMES, ASMC_MBA6_TEMPDESCS 481 }, 482 { 483 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)", 484 ASMC_SMS_FUNCS_DISABLED, 485 ASMC_FAN_FUNCS2, 486 ASMC_LIGHT_FUNCS, 487 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 488 }, 489 { 490 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)", 491 ASMC_SMS_FUNCS_DISABLED, 492 ASMC_FAN_FUNCS2, 493 ASMC_LIGHT_FUNCS, 494 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS 495 }, 496 { NULL, NULL } 497 }; 498 499 #undef ASMC_SMS_FUNCS 500 #undef ASMC_SMS_FUNCS_DISABLED 501 #undef ASMC_FAN_FUNCS 502 #undef ASMC_FAN_FUNCS2 503 #undef ASMC_LIGHT_FUNCS 504 505 /* 506 * Driver methods. 507 */ 508 static device_method_t asmc_methods[] = { 509 DEVMETHOD(device_probe, asmc_probe), 510 DEVMETHOD(device_attach, asmc_attach), 511 DEVMETHOD(device_detach, asmc_detach), 512 DEVMETHOD(device_resume, asmc_resume), 513 { 0, 0 } 514 }; 515 516 static driver_t asmc_driver = { 517 "asmc", 518 asmc_methods, 519 sizeof(struct asmc_softc) 520 }; 521 522 /* 523 * Debugging 524 */ 525 #define _COMPONENT ACPI_OEM 526 ACPI_MODULE_NAME("ASMC") 527 #ifdef ASMC_DEBUG 528 #define ASMC_DPRINTF(str) device_printf(dev, str) 529 #else 530 #define ASMC_DPRINTF(str) 531 #endif 532 533 /* NB: can't be const */ 534 static char *asmc_ids[] = { "APP0001", NULL }; 535 536 static unsigned int light_control = 0; 537 538 DRIVER_MODULE(asmc, acpi, asmc_driver, NULL, NULL); 539 MODULE_DEPEND(asmc, acpi, 1, 1, 1); 540 541 static const struct asmc_model * 542 asmc_match(device_t dev) 543 { 544 int i; 545 char *model; 546 547 model = kern_getenv("smbios.system.product"); 548 if (model == NULL) 549 return (NULL); 550 551 for (i = 0; asmc_models[i].smc_model; i++) { 552 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) { 553 freeenv(model); 554 return (&asmc_models[i]); 555 } 556 } 557 freeenv(model); 558 559 return (NULL); 560 } 561 562 static int 563 asmc_probe(device_t dev) 564 { 565 const struct asmc_model *model; 566 int rv; 567 568 if (resource_disabled("asmc", 0)) 569 return (ENXIO); 570 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL); 571 if (rv > 0) 572 return (rv); 573 574 model = asmc_match(dev); 575 if (!model) { 576 device_printf(dev, "model not recognized\n"); 577 return (ENXIO); 578 } 579 device_set_desc(dev, model->smc_desc); 580 581 return (rv); 582 } 583 584 static int 585 asmc_attach(device_t dev) 586 { 587 int i, j; 588 int ret; 589 char name[2]; 590 struct asmc_softc *sc = device_get_softc(dev); 591 struct sysctl_ctx_list *sysctlctx; 592 struct sysctl_oid *sysctlnode; 593 const struct asmc_model *model; 594 595 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT, 596 &sc->sc_rid_port, RF_ACTIVE); 597 if (sc->sc_ioport == NULL) { 598 device_printf(dev, "unable to allocate IO port\n"); 599 return (ENOMEM); 600 } 601 602 sysctlctx = device_get_sysctl_ctx(dev); 603 sysctlnode = device_get_sysctl_tree(dev); 604 605 model = asmc_match(dev); 606 607 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN); 608 609 sc->sc_model = model; 610 asmc_init(dev); 611 612 /* 613 * dev.asmc.n.fan.* tree. 614 */ 615 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx, 616 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan", 617 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Fan Root Tree"); 618 619 for (i = 1; i <= sc->sc_nfan; i++) { 620 j = i - 1; 621 name[0] = '0' + j; 622 name[1] = 0; 623 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx, 624 SYSCTL_CHILDREN(sc->sc_fan_tree[0]), 625 OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 626 "Fan Subtree"); 627 628 SYSCTL_ADD_PROC(sysctlctx, 629 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 630 OID_AUTO, "id", 631 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 632 dev, j, model->smc_fan_id, "I", 633 "Fan ID"); 634 635 SYSCTL_ADD_PROC(sysctlctx, 636 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 637 OID_AUTO, "speed", 638 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 639 dev, j, model->smc_fan_speed, "I", 640 "Fan speed in RPM"); 641 642 SYSCTL_ADD_PROC(sysctlctx, 643 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 644 OID_AUTO, "safespeed", 645 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 646 dev, j, model->smc_fan_safespeed, "I", 647 "Fan safe speed in RPM"); 648 649 SYSCTL_ADD_PROC(sysctlctx, 650 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 651 OID_AUTO, "minspeed", 652 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 653 dev, j, model->smc_fan_minspeed, "I", 654 "Fan minimum speed in RPM"); 655 656 SYSCTL_ADD_PROC(sysctlctx, 657 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 658 OID_AUTO, "maxspeed", 659 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 660 dev, j, model->smc_fan_maxspeed, "I", 661 "Fan maximum speed in RPM"); 662 663 SYSCTL_ADD_PROC(sysctlctx, 664 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 665 OID_AUTO, "targetspeed", 666 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 667 dev, j, model->smc_fan_targetspeed, "I", 668 "Fan target speed in RPM"); 669 670 SYSCTL_ADD_PROC(sysctlctx, 671 SYSCTL_CHILDREN(sc->sc_fan_tree[i]), 672 OID_AUTO, "manual", 673 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 674 dev, j, asmc_mb_sysctl_fanmanual, "I", 675 "Fan manual mode (0=auto, 1=manual)"); 676 } 677 678 /* 679 * dev.asmc.n.temp tree. 680 */ 681 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx, 682 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp", 683 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Temperature sensors"); 684 685 for (i = 0; model->smc_temps[i]; i++) { 686 SYSCTL_ADD_PROC(sysctlctx, 687 SYSCTL_CHILDREN(sc->sc_temp_tree), 688 OID_AUTO, model->smc_tempnames[i], 689 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 690 dev, i, asmc_temp_sysctl, "I", 691 model->smc_tempdescs[i]); 692 } 693 694 /* 695 * dev.asmc.n.light 696 */ 697 if (model->smc_light_left) { 698 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx, 699 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light", 700 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 701 "Keyboard backlight sensors"); 702 703 SYSCTL_ADD_PROC(sysctlctx, 704 SYSCTL_CHILDREN(sc->sc_light_tree), 705 OID_AUTO, "left", 706 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 707 dev, 0, model->smc_light_left, "I", 708 "Keyboard backlight left sensor"); 709 710 SYSCTL_ADD_PROC(sysctlctx, 711 SYSCTL_CHILDREN(sc->sc_light_tree), 712 OID_AUTO, "right", 713 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 714 dev, 0, model->smc_light_right, "I", 715 "Keyboard backlight right sensor"); 716 717 SYSCTL_ADD_PROC(sysctlctx, 718 SYSCTL_CHILDREN(sc->sc_light_tree), 719 OID_AUTO, "control", 720 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY | 721 CTLFLAG_NEEDGIANT, dev, 0, 722 model->smc_light_control, "I", 723 "Keyboard backlight brightness control"); 724 } 725 726 if (model->smc_sms_x == NULL) 727 goto nosms; 728 729 /* 730 * dev.asmc.n.sms tree. 731 */ 732 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx, 733 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms", 734 CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "Sudden Motion Sensor"); 735 736 SYSCTL_ADD_PROC(sysctlctx, 737 SYSCTL_CHILDREN(sc->sc_sms_tree), 738 OID_AUTO, "x", 739 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 740 dev, 0, model->smc_sms_x, "I", 741 "Sudden Motion Sensor X value"); 742 743 SYSCTL_ADD_PROC(sysctlctx, 744 SYSCTL_CHILDREN(sc->sc_sms_tree), 745 OID_AUTO, "y", 746 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 747 dev, 0, model->smc_sms_y, "I", 748 "Sudden Motion Sensor Y value"); 749 750 SYSCTL_ADD_PROC(sysctlctx, 751 SYSCTL_CHILDREN(sc->sc_sms_tree), 752 OID_AUTO, "z", 753 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT, 754 dev, 0, model->smc_sms_z, "I", 755 "Sudden Motion Sensor Z value"); 756 757 /* 758 * Need a taskqueue to send devctl_notify() events 759 * when the SMS interrupt us. 760 * 761 * PI_REALTIME is used due to the sensitivity of the 762 * interrupt. An interrupt from the SMS means that the 763 * disk heads should be turned off as quickly as possible. 764 * 765 * We only need to do this for the non INTR_FILTER case. 766 */ 767 sc->sc_sms_tq = NULL; 768 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc); 769 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK, 770 taskqueue_thread_enqueue, &sc->sc_sms_tq); 771 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq", 772 device_get_nameunit(dev)); 773 /* 774 * Allocate an IRQ for the SMS. 775 */ 776 sc->sc_rid_irq = 0; 777 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 778 &sc->sc_rid_irq, RF_ACTIVE); 779 if (sc->sc_irq == NULL) { 780 device_printf(dev, "unable to allocate IRQ resource\n"); 781 ret = ENXIO; 782 goto err2; 783 } 784 785 ret = bus_setup_intr(dev, sc->sc_irq, 786 INTR_TYPE_MISC | INTR_MPSAFE, 787 asmc_sms_intrfast, NULL, 788 dev, &sc->sc_cookie); 789 790 if (ret) { 791 device_printf(dev, "unable to setup SMS IRQ\n"); 792 goto err1; 793 } 794 nosms: 795 return (0); 796 err1: 797 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq); 798 err2: 799 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 800 sc->sc_ioport); 801 mtx_destroy(&sc->sc_mtx); 802 if (sc->sc_sms_tq) 803 taskqueue_free(sc->sc_sms_tq); 804 805 return (ret); 806 } 807 808 static int 809 asmc_detach(device_t dev) 810 { 811 struct asmc_softc *sc = device_get_softc(dev); 812 813 if (sc->sc_sms_tq) { 814 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task); 815 taskqueue_free(sc->sc_sms_tq); 816 } 817 if (sc->sc_cookie) 818 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie); 819 if (sc->sc_irq) 820 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, 821 sc->sc_irq); 822 if (sc->sc_ioport) 823 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port, 824 sc->sc_ioport); 825 mtx_destroy(&sc->sc_mtx); 826 827 return (0); 828 } 829 830 static int 831 asmc_resume(device_t dev) 832 { 833 uint8_t buf[2]; 834 835 buf[0] = light_control; 836 buf[1] = 0x00; 837 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 838 839 return (0); 840 } 841 842 #ifdef ASMC_DEBUG 843 void asmc_dumpall(device_t dev) 844 { 845 struct asmc_softc *sc = device_get_softc(dev); 846 int i; 847 848 if (sc->sc_nkeys == 0) { 849 device_printf(dev, "asmc_dumpall: key count not available\n"); 850 return; 851 } 852 853 device_printf(dev, "asmc_dumpall: dumping %d keys\n", sc->sc_nkeys); 854 for (i = 0; i < sc->sc_nkeys; i++) 855 asmc_key_dump(dev, i); 856 } 857 #endif 858 859 static int 860 asmc_init(device_t dev) 861 { 862 struct asmc_softc *sc = device_get_softc(dev); 863 int i, error = 1; 864 uint8_t buf[4]; 865 866 if (sc->sc_model->smc_sms_x == NULL) 867 goto nosms; 868 869 /* 870 * We are ready to receive interrupts from the SMS. 871 */ 872 buf[0] = 0x01; 873 ASMC_DPRINTF(("intok key\n")); 874 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1); 875 DELAY(50); 876 877 /* 878 * Initiate the polling intervals. 879 */ 880 buf[0] = 20; /* msecs */ 881 ASMC_DPRINTF(("low int key\n")); 882 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1); 883 DELAY(200); 884 885 buf[0] = 20; /* msecs */ 886 ASMC_DPRINTF(("high int key\n")); 887 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1); 888 DELAY(200); 889 890 buf[0] = 0x00; 891 buf[1] = 0x60; 892 ASMC_DPRINTF(("sms low key\n")); 893 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2); 894 DELAY(200); 895 896 buf[0] = 0x01; 897 buf[1] = 0xc0; 898 ASMC_DPRINTF(("sms high key\n")); 899 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2); 900 DELAY(200); 901 902 /* 903 * I'm not sure what this key does, but it seems to be 904 * required. 905 */ 906 buf[0] = 0x01; 907 ASMC_DPRINTF(("sms flag key\n")); 908 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1); 909 DELAY(100); 910 911 sc->sc_sms_intr_works = 0; 912 913 /* 914 * Retry SMS initialization 1000 times 915 * (takes approx. 2 seconds in worst case) 916 */ 917 for (i = 0; i < 1000; i++) { 918 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 && 919 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) { 920 error = 0; 921 sc->sc_sms_intr_works = 1; 922 goto out; 923 } 924 buf[0] = ASMC_SMS_INIT1; 925 buf[1] = ASMC_SMS_INIT2; 926 ASMC_DPRINTF(("sms key\n")); 927 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2); 928 DELAY(50); 929 } 930 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n"); 931 932 out: 933 asmc_sms_calibrate(dev); 934 nosms: 935 sc->sc_nfan = asmc_fan_count(dev); 936 if (sc->sc_nfan > ASMC_MAXFANS) { 937 device_printf(dev, "more than %d fans were detected. Please " 938 "report this.\n", ASMC_MAXFANS); 939 sc->sc_nfan = ASMC_MAXFANS; 940 } 941 942 /* 943 * Read and cache the number of SMC keys (32 bit buffer) 944 */ 945 if (asmc_key_read(dev, ASMC_NKEYS, buf, 4) == 0) { 946 sc->sc_nkeys = be32dec(buf); 947 if (bootverbose) 948 device_printf(dev, "number of keys: %d\n", sc->sc_nkeys); 949 } else { 950 sc->sc_nkeys = 0; 951 } 952 953 #ifdef ASMC_DEBUG 954 asmc_dumpall(dev); 955 #endif 956 957 return (error); 958 } 959 960 /* 961 * We need to make sure that the SMC acks the byte sent. 962 * Just wait up to (amount * 10) ms. 963 */ 964 static int 965 asmc_wait_ack(device_t dev, uint8_t val, int amount) 966 { 967 struct asmc_softc *sc = device_get_softc(dev); 968 u_int i; 969 970 val = val & ASMC_STATUS_MASK; 971 972 for (i = 0; i < amount; i++) { 973 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val) 974 return (0); 975 DELAY(10); 976 } 977 978 return (1); 979 } 980 981 /* 982 * We need to make sure that the SMC acks the byte sent. 983 * Just wait up to 100 ms. 984 */ 985 static int 986 asmc_wait(device_t dev, uint8_t val) 987 { 988 #ifdef ASMC_DEBUG 989 struct asmc_softc *sc; 990 #endif 991 992 if (asmc_wait_ack(dev, val, 1000) == 0) 993 return (0); 994 995 #ifdef ASMC_DEBUG 996 sc = device_get_softc(dev); 997 #endif 998 val = val & ASMC_STATUS_MASK; 999 1000 #ifdef ASMC_DEBUG 1001 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val, 1002 ASMC_CMDPORT_READ(sc)); 1003 #endif 1004 return (1); 1005 } 1006 1007 /* 1008 * Send the given command, retrying up to 10 times if 1009 * the acknowledgement fails. 1010 */ 1011 static int 1012 asmc_command(device_t dev, uint8_t command) { 1013 int i; 1014 struct asmc_softc *sc = device_get_softc(dev); 1015 1016 for (i=0; i < 10; i++) { 1017 ASMC_CMDPORT_WRITE(sc, command); 1018 if (asmc_wait_ack(dev, 0x0c, 100) == 0) { 1019 return (0); 1020 } 1021 } 1022 1023 #ifdef ASMC_DEBUG 1024 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command, 1025 ASMC_CMDPORT_READ(sc)); 1026 #endif 1027 return (1); 1028 } 1029 1030 static int 1031 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1032 { 1033 int i, error = 1, try = 0; 1034 struct asmc_softc *sc = device_get_softc(dev); 1035 1036 mtx_lock_spin(&sc->sc_mtx); 1037 1038 begin: 1039 if (asmc_command(dev, ASMC_CMDREAD)) 1040 goto out; 1041 1042 for (i = 0; i < 4; i++) { 1043 ASMC_DATAPORT_WRITE(sc, key[i]); 1044 if (asmc_wait(dev, 0x04)) 1045 goto out; 1046 } 1047 1048 ASMC_DATAPORT_WRITE(sc, len); 1049 1050 for (i = 0; i < len; i++) { 1051 if (asmc_wait(dev, 0x05)) 1052 goto out; 1053 buf[i] = ASMC_DATAPORT_READ(sc); 1054 } 1055 1056 error = 0; 1057 out: 1058 if (error) { 1059 if (++try < 10) goto begin; 1060 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1061 __func__, key, try); 1062 } 1063 1064 mtx_unlock_spin(&sc->sc_mtx); 1065 1066 return (error); 1067 } 1068 1069 #ifdef ASMC_DEBUG 1070 static int 1071 asmc_key_dump(device_t dev, int number) 1072 { 1073 struct asmc_softc *sc = device_get_softc(dev); 1074 char key[5] = { 0 }; 1075 char type[7] = { 0 }; 1076 uint8_t index[4]; 1077 uint8_t v[32]; 1078 uint8_t maxlen; 1079 int i, error = 1, try = 0; 1080 1081 mtx_lock_spin(&sc->sc_mtx); 1082 1083 index[0] = (number >> 24) & 0xff; 1084 index[1] = (number >> 16) & 0xff; 1085 index[2] = (number >> 8) & 0xff; 1086 index[3] = (number) & 0xff; 1087 1088 begin: 1089 if (asmc_command(dev, 0x12)) 1090 goto out; 1091 1092 for (i = 0; i < 4; i++) { 1093 ASMC_DATAPORT_WRITE(sc, index[i]); 1094 if (asmc_wait(dev, 0x04)) 1095 goto out; 1096 } 1097 1098 ASMC_DATAPORT_WRITE(sc, 4); 1099 1100 for (i = 0; i < 4; i++) { 1101 if (asmc_wait(dev, 0x05)) 1102 goto out; 1103 key[i] = ASMC_DATAPORT_READ(sc); 1104 } 1105 1106 /* get type */ 1107 if (asmc_command(dev, 0x13)) 1108 goto out; 1109 1110 for (i = 0; i < 4; i++) { 1111 ASMC_DATAPORT_WRITE(sc, key[i]); 1112 if (asmc_wait(dev, 0x04)) 1113 goto out; 1114 } 1115 1116 ASMC_DATAPORT_WRITE(sc, 6); 1117 1118 for (i = 0; i < 6; i++) { 1119 if (asmc_wait(dev, 0x05)) 1120 goto out; 1121 type[i] = ASMC_DATAPORT_READ(sc); 1122 } 1123 1124 error = 0; 1125 out: 1126 if (error) { 1127 if (++try < 10) goto begin; 1128 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1129 __func__, key, try); 1130 mtx_unlock_spin(&sc->sc_mtx); 1131 } 1132 else { 1133 char buf[1024]; 1134 char buf2[8]; 1135 mtx_unlock_spin(&sc->sc_mtx); 1136 maxlen = type[0]; 1137 type[0] = ' '; 1138 type[5] = 0; 1139 if (maxlen > sizeof(v)) { 1140 device_printf(dev, 1141 "WARNING: cropping maxlen from %d to %zu\n", 1142 maxlen, sizeof(v)); 1143 maxlen = sizeof(v); 1144 } 1145 for (i = 0; i < sizeof(v); i++) { 1146 v[i] = 0; 1147 } 1148 asmc_key_read(dev, key, v, maxlen); 1149 snprintf(buf, sizeof(buf), "key %d is: %s, type %s " 1150 "(len %d), data", number, key, type, maxlen); 1151 for (i = 0; i < maxlen; i++) { 1152 snprintf(buf2, sizeof(buf2), " %02x", v[i]); 1153 strlcat(buf, buf2, sizeof(buf)); 1154 } 1155 strlcat(buf, " \n", sizeof(buf)); 1156 device_printf(dev, "%s", buf); 1157 } 1158 1159 return (error); 1160 } 1161 #endif 1162 1163 static int 1164 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len) 1165 { 1166 int i, error = -1, try = 0; 1167 struct asmc_softc *sc = device_get_softc(dev); 1168 1169 mtx_lock_spin(&sc->sc_mtx); 1170 1171 begin: 1172 ASMC_DPRINTF(("cmd port: cmd write\n")); 1173 if (asmc_command(dev, ASMC_CMDWRITE)) 1174 goto out; 1175 1176 ASMC_DPRINTF(("data port: key\n")); 1177 for (i = 0; i < 4; i++) { 1178 ASMC_DATAPORT_WRITE(sc, key[i]); 1179 if (asmc_wait(dev, 0x04)) 1180 goto out; 1181 } 1182 ASMC_DPRINTF(("data port: length\n")); 1183 ASMC_DATAPORT_WRITE(sc, len); 1184 1185 ASMC_DPRINTF(("data port: buffer\n")); 1186 for (i = 0; i < len; i++) { 1187 if (asmc_wait(dev, 0x04)) 1188 goto out; 1189 ASMC_DATAPORT_WRITE(sc, buf[i]); 1190 } 1191 1192 error = 0; 1193 out: 1194 if (error) { 1195 if (++try < 10) goto begin; 1196 device_printf(dev,"%s for key %s failed %d times, giving up\n", 1197 __func__, key, try); 1198 } 1199 1200 mtx_unlock_spin(&sc->sc_mtx); 1201 1202 return (error); 1203 1204 } 1205 1206 /* 1207 * Fan control functions. 1208 */ 1209 static int 1210 asmc_fan_count(device_t dev) 1211 { 1212 uint8_t buf[1]; 1213 1214 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) != 0) 1215 return (-1); 1216 1217 return (buf[0]); 1218 } 1219 1220 static int 1221 asmc_fan_getvalue(device_t dev, const char *key, int fan) 1222 { 1223 int speed; 1224 uint8_t buf[2]; 1225 char fankey[5]; 1226 1227 snprintf(fankey, sizeof(fankey), key, fan); 1228 if (asmc_key_read(dev, fankey, buf, sizeof buf) != 0) 1229 return (-1); 1230 speed = (buf[0] << 6) | (buf[1] >> 2); 1231 1232 return (speed); 1233 } 1234 1235 static char* 1236 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, uint8_t buflen) 1237 { 1238 char fankey[5]; 1239 char* desc; 1240 1241 snprintf(fankey, sizeof(fankey), key, fan); 1242 if (asmc_key_read(dev, fankey, buf, buflen) != 0) 1243 return (NULL); 1244 desc = buf+4; 1245 1246 return (desc); 1247 } 1248 1249 static int 1250 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed) 1251 { 1252 uint8_t buf[2]; 1253 char fankey[5]; 1254 1255 speed *= 4; 1256 1257 buf[0] = speed>>8; 1258 buf[1] = speed; 1259 1260 snprintf(fankey, sizeof(fankey), key, fan); 1261 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0) 1262 return (-1); 1263 1264 return (0); 1265 } 1266 1267 static int 1268 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS) 1269 { 1270 device_t dev = (device_t) arg1; 1271 int fan = arg2; 1272 int error; 1273 int32_t v; 1274 1275 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan); 1276 error = sysctl_handle_int(oidp, &v, 0, req); 1277 1278 return (error); 1279 } 1280 1281 static int 1282 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS) 1283 { 1284 uint8_t buf[16]; 1285 device_t dev = (device_t) arg1; 1286 int fan = arg2; 1287 int error = true; 1288 char* desc; 1289 1290 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf)); 1291 1292 if (desc != NULL) 1293 error = sysctl_handle_string(oidp, desc, 0, req); 1294 1295 return (error); 1296 } 1297 1298 static int 1299 asmc_mb_sysctl_fansafespeed(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_FANSAFESPEED, fan); 1307 error = sysctl_handle_int(oidp, &v, 0, req); 1308 1309 return (error); 1310 } 1311 1312 static int 1313 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS) 1314 { 1315 device_t dev = (device_t) arg1; 1316 int fan = arg2; 1317 int error; 1318 int32_t v; 1319 1320 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan); 1321 error = sysctl_handle_int(oidp, &v, 0, req); 1322 1323 if (error == 0 && req->newptr != NULL) { 1324 unsigned int newspeed = v; 1325 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed); 1326 } 1327 1328 return (error); 1329 } 1330 1331 static int 1332 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS) 1333 { 1334 device_t dev = (device_t) arg1; 1335 int fan = arg2; 1336 int error; 1337 int32_t v; 1338 1339 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan); 1340 error = sysctl_handle_int(oidp, &v, 0, req); 1341 1342 if (error == 0 && req->newptr != NULL) { 1343 unsigned int newspeed = v; 1344 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed); 1345 } 1346 1347 return (error); 1348 } 1349 1350 static int 1351 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS) 1352 { 1353 device_t dev = (device_t) arg1; 1354 int fan = arg2; 1355 int error; 1356 int32_t v; 1357 1358 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan); 1359 error = sysctl_handle_int(oidp, &v, 0, req); 1360 1361 if (error == 0 && req->newptr != NULL) { 1362 unsigned int newspeed = v; 1363 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed); 1364 } 1365 1366 return (error); 1367 } 1368 1369 static int 1370 asmc_mb_sysctl_fanmanual(SYSCTL_HANDLER_ARGS) 1371 { 1372 device_t dev = (device_t) arg1; 1373 int fan = arg2; 1374 int error; 1375 int32_t v; 1376 uint8_t buf[2]; 1377 uint16_t val; 1378 1379 /* Read current FS! bitmask (asmc_key_read locks internally) */ 1380 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1381 if (error != 0) 1382 return (error); 1383 1384 /* Extract manual bit for this fan (big-endian) */ 1385 val = (buf[0] << 8) | buf[1]; 1386 v = (val >> fan) & 0x01; 1387 1388 /* Let sysctl handle the value */ 1389 error = sysctl_handle_int(oidp, &v, 0, req); 1390 1391 if (error == 0 && req->newptr != NULL) { 1392 /* Validate input (0 = auto, 1 = manual) */ 1393 if (v != 0 && v != 1) 1394 return (EINVAL); 1395 /* Read-modify-write of FS! bitmask */ 1396 error = asmc_key_read(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1397 if (error == 0) { 1398 val = (buf[0] << 8) | buf[1]; 1399 1400 /* Modify single bit */ 1401 if (v) 1402 val |= (1 << fan); /* Set to manual */ 1403 else 1404 val &= ~(1 << fan); /* Set to auto */ 1405 1406 /* Write back */ 1407 buf[0] = val >> 8; 1408 buf[1] = val & 0xff; 1409 error = asmc_key_write(dev, ASMC_KEY_FANMANUAL, buf, sizeof(buf)); 1410 } 1411 } 1412 1413 return (error); 1414 } 1415 1416 /* 1417 * Temperature functions. 1418 */ 1419 static int 1420 asmc_temp_getvalue(device_t dev, const char *key) 1421 { 1422 uint8_t buf[2]; 1423 1424 /* 1425 * Check for invalid temperatures. 1426 */ 1427 if (asmc_key_read(dev, key, buf, sizeof buf) != 0) 1428 return (-1); 1429 1430 return (buf[0]); 1431 } 1432 1433 static int 1434 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS) 1435 { 1436 device_t dev = (device_t) arg1; 1437 struct asmc_softc *sc = device_get_softc(dev); 1438 int error, val; 1439 1440 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]); 1441 error = sysctl_handle_int(oidp, &val, 0, req); 1442 1443 return (error); 1444 } 1445 1446 /* 1447 * Sudden Motion Sensor functions. 1448 */ 1449 static int 1450 asmc_sms_read(device_t dev, const char *key, int16_t *val) 1451 { 1452 uint8_t buf[2]; 1453 int error; 1454 1455 /* no need to do locking here as asmc_key_read() already does it */ 1456 switch (key[3]) { 1457 case 'X': 1458 case 'Y': 1459 case 'Z': 1460 error = asmc_key_read(dev, key, buf, sizeof buf); 1461 break; 1462 default: 1463 device_printf(dev, "%s called with invalid argument %s\n", 1464 __func__, key); 1465 error = 1; 1466 goto out; 1467 } 1468 *val = ((int16_t)buf[0] << 8) | buf[1]; 1469 out: 1470 return (error); 1471 } 1472 1473 static void 1474 asmc_sms_calibrate(device_t dev) 1475 { 1476 struct asmc_softc *sc = device_get_softc(dev); 1477 1478 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x); 1479 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y); 1480 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z); 1481 } 1482 1483 static int 1484 asmc_sms_intrfast(void *arg) 1485 { 1486 uint8_t type; 1487 device_t dev = (device_t) arg; 1488 struct asmc_softc *sc = device_get_softc(dev); 1489 if (!sc->sc_sms_intr_works) 1490 return (FILTER_HANDLED); 1491 1492 mtx_lock_spin(&sc->sc_mtx); 1493 type = ASMC_INTPORT_READ(sc); 1494 mtx_unlock_spin(&sc->sc_mtx); 1495 1496 sc->sc_sms_intrtype = type; 1497 asmc_sms_printintr(dev, type); 1498 1499 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task); 1500 return (FILTER_HANDLED); 1501 } 1502 1503 static void 1504 asmc_sms_printintr(device_t dev, uint8_t type) 1505 { 1506 struct asmc_softc *sc = device_get_softc(dev); 1507 1508 switch (type) { 1509 case ASMC_SMS_INTFF: 1510 device_printf(dev, "WARNING: possible free fall!\n"); 1511 break; 1512 case ASMC_SMS_INTHA: 1513 device_printf(dev, "WARNING: high acceleration detected!\n"); 1514 break; 1515 case ASMC_SMS_INTSH: 1516 device_printf(dev, "WARNING: possible shock!\n"); 1517 break; 1518 case ASMC_ALSL_INT2A: 1519 /* 1520 * This suppresses console and log messages for the ambient 1521 * light sensor for models known to generate this interrupt. 1522 */ 1523 if (strcmp(sc->sc_model->smc_model, "MacBookPro5,5") == 0 || 1524 strcmp(sc->sc_model->smc_model, "MacBookPro6,2") == 0) 1525 break; 1526 /* FALLTHROUGH */ 1527 default: 1528 device_printf(dev, "unknown interrupt: 0x%x\n", type); 1529 } 1530 } 1531 1532 static void 1533 asmc_sms_task(void *arg, int pending) 1534 { 1535 struct asmc_softc *sc = (struct asmc_softc *)arg; 1536 char notify[16]; 1537 int type; 1538 1539 switch (sc->sc_sms_intrtype) { 1540 case ASMC_SMS_INTFF: 1541 type = 2; 1542 break; 1543 case ASMC_SMS_INTHA: 1544 type = 1; 1545 break; 1546 case ASMC_SMS_INTSH: 1547 type = 0; 1548 break; 1549 default: 1550 type = 255; 1551 } 1552 1553 snprintf(notify, sizeof(notify), " notify=0x%x", type); 1554 devctl_notify("ACPI", "asmc", "SMS", notify); 1555 } 1556 1557 static int 1558 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS) 1559 { 1560 device_t dev = (device_t) arg1; 1561 int error; 1562 int16_t val; 1563 int32_t v; 1564 1565 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val); 1566 v = (int32_t) val; 1567 error = sysctl_handle_int(oidp, &v, 0, req); 1568 1569 return (error); 1570 } 1571 1572 static int 1573 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS) 1574 { 1575 device_t dev = (device_t) arg1; 1576 int error; 1577 int16_t val; 1578 int32_t v; 1579 1580 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val); 1581 v = (int32_t) val; 1582 error = sysctl_handle_int(oidp, &v, 0, req); 1583 1584 return (error); 1585 } 1586 1587 static int 1588 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS) 1589 { 1590 device_t dev = (device_t) arg1; 1591 int error; 1592 int16_t val; 1593 int32_t v; 1594 1595 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val); 1596 v = (int32_t) val; 1597 error = sysctl_handle_int(oidp, &v, 0, req); 1598 1599 return (error); 1600 } 1601 1602 static int 1603 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS) 1604 { 1605 device_t dev = (device_t) arg1; 1606 uint8_t buf[6]; 1607 int error; 1608 int32_t v; 1609 1610 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1611 v = buf[2]; 1612 error = sysctl_handle_int(oidp, &v, 0, req); 1613 1614 return (error); 1615 } 1616 1617 static int 1618 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS) 1619 { 1620 device_t dev = (device_t) arg1; 1621 uint8_t buf[6]; 1622 int error; 1623 int32_t v; 1624 1625 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf); 1626 v = buf[2]; 1627 error = sysctl_handle_int(oidp, &v, 0, req); 1628 1629 return (error); 1630 } 1631 1632 static int 1633 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS) 1634 { 1635 device_t dev = (device_t) arg1; 1636 uint8_t buf[2]; 1637 int error; 1638 int v; 1639 1640 v = light_control; 1641 error = sysctl_handle_int(oidp, &v, 0, req); 1642 1643 if (error == 0 && req->newptr != NULL) { 1644 if (v < 0 || v > 255) 1645 return (EINVAL); 1646 light_control = v; 1647 buf[0] = light_control; 1648 buf[1] = 0x00; 1649 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf); 1650 } 1651 return (error); 1652 } 1653 1654 static int 1655 asmc_mbp_sysctl_light_left_10byte(SYSCTL_HANDLER_ARGS) 1656 { 1657 device_t dev = (device_t) arg1; 1658 uint8_t buf[10]; 1659 int error; 1660 uint32_t v; 1661 1662 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf); 1663 1664 /* 1665 * This seems to be a 32 bit big endian value from buf[6] -> buf[9]. 1666 * 1667 * Extract it out manually here, then shift/clamp it. 1668 */ 1669 v = be32dec(&buf[6]); 1670 1671 /* 1672 * Shift out, clamp at 255; that way it looks like the 1673 * earlier SMC firmware version responses. 1674 */ 1675 v = v >> 8; 1676 if (v > 255) 1677 v = 255; 1678 1679 error = sysctl_handle_int(oidp, &v, 0, req); 1680 1681 return (error); 1682 } 1683