1 /*- 2 * Copyright (c) 2013 Phileas Fogg 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 15 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 16 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24 * POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/param.h> 28 #include <sys/systm.h> 29 #include <sys/kernel.h> 30 #include <sys/malloc.h> 31 #include <sys/device.h> 32 #include <sys/proc.h> 33 #include <sys/mutex.h> 34 #include <sys/time.h> 35 #include <sys/reboot.h> 36 #include <sys/sysctl.h> 37 #include <sys/kthread.h> 38 39 #include <machine/autoconf.h> 40 41 #include <dev/ofw/openfirm.h> 42 #include <dev/i2c/i2cvar.h> 43 #include <dev/clock_subr.h> 44 #include <dev/sysmon/sysmonvar.h> 45 #include <dev/sysmon/sysmon_taskq.h> 46 47 #include <macppc/dev/obiovar.h> 48 #include <macppc/dev/smuvar.h> 49 50 #include "opt_smu.h" 51 52 struct smu_softc; 53 54 struct smu_cmd { 55 u_char cmd; 56 u_char len; 57 u_char data[254]; 58 }; 59 60 struct smu_fan { 61 struct smu_softc* sc; 62 63 char location[32]; 64 int reg; 65 int zone; 66 int rpm_ctl; 67 int min_rpm; 68 int max_rpm; 69 int default_rpm; 70 int current_rpm; 71 time_t last_update; 72 }; 73 74 struct smu_iicbus { 75 struct smu_softc* sc; 76 77 int reg; 78 struct i2c_controller i2c; 79 }; 80 81 #define SMU_MAX_FANS 8 82 #define SMU_MAX_IICBUS 3 83 #define SMU_MAX_SME_SENSORS SMU_MAX_FANS 84 85 struct smu_zone { 86 bool (*filter)(const envsys_data_t *); 87 int nfans; 88 int fans[SMU_MAX_FANS]; 89 int threshold, step; 90 int duty; 91 }; 92 93 94 #define SMU_ZONE_CPUS 0 95 #define SMU_ZONE_DRIVES 1 96 #define SMU_ZONE_SLOTS 2 97 #define SMU_ZONES 3 98 99 #define C_TO_uK(n) (n * 1000000 + 273150000) 100 101 struct smu_softc { 102 device_t sc_dev; 103 int sc_node; 104 struct sysctlnode *sc_sysctl_me; 105 106 kmutex_t sc_cmd_lock; 107 kmutex_t sc_msg_lock; 108 struct smu_cmd *sc_cmd; 109 paddr_t sc_cmd_paddr; 110 int sc_dbell_mbox; 111 int sc_dbell_gpio; 112 113 int sc_num_fans; 114 struct smu_fan sc_fans[SMU_MAX_FANS]; 115 116 int sc_num_iicbus; 117 struct smu_iicbus sc_iicbus[SMU_MAX_IICBUS]; 118 119 struct todr_chip_handle sc_todr; 120 121 struct sysmon_envsys *sc_sme; 122 envsys_data_t sc_sme_sensors[SMU_MAX_SME_SENSORS]; 123 124 struct smu_zone sc_zones[SMU_ZONES]; 125 lwp_t *sc_thread; 126 bool sc_dying; 127 }; 128 129 #define SMU_CMD_FAN 0x4a 130 #define SMU_CMD_RTC 0x8e 131 #define SMU_CMD_I2C 0x9a 132 #define SMU_CMD_POWER 0xaa 133 #define SMU_ADC 0xd8 134 #define SMU_MISC 0xee 135 #define SMU_MISC_GET_DATA 0x02 136 #define SMU_MISC_LED_CTRL 0x04 137 138 #define SMU_CPUTEMP_CAL 0x18 139 #define SMU_CPUVOLT_CAL 0x21 140 #define SMU_SLOTPW_CAL 0x78 141 142 #define SMU_PARTITION 0x3e 143 #define SMU_PARTITION_LATEST 0x01 144 #define SMU_PARTITION_BASE 0x02 145 #define SMU_PARTITION_UPDATE 0x03 146 147 #ifdef SMU_DEBUG 148 #define DPRINTF printf 149 #else 150 #define DPRINTF while (0) printf 151 #endif 152 153 static int smu_match(device_t, struct cfdata *, void *); 154 static void smu_attach(device_t, device_t, void *); 155 static int smu_setup_doorbell(struct smu_softc *); 156 static void smu_setup_fans(struct smu_softc *); 157 static void smu_setup_iicbus(struct smu_softc *); 158 static void smu_setup_sme(struct smu_softc *); 159 static int smu_iicbus_print(void *, const char *); 160 static void smu_sme_refresh(struct sysmon_envsys *, envsys_data_t *); 161 static int smu_do_cmd(struct smu_softc *, struct smu_cmd *, int); 162 static int smu_dbell_gpio_intr(void *); 163 static int smu_todr_gettime_ymdhms(todr_chip_handle_t, struct clock_ymdhms *); 164 static int smu_todr_settime_ymdhms(todr_chip_handle_t, struct clock_ymdhms *); 165 static int smu_fan_update_rpm(struct smu_fan *); 166 static int smu_fan_get_rpm(struct smu_fan *, int *); 167 static int smu_fan_set_rpm(struct smu_fan *, int); 168 static int smu_iicbus_exec(void *, i2c_op_t, i2c_addr_t, const void *, 169 size_t, void *, size_t, int); 170 static int smu_sysctl_fan_rpm(SYSCTLFN_ARGS); 171 172 static void smu_setup_zones(struct smu_softc *); 173 static void smu_adjust_zone(struct smu_softc *, int); 174 static void smu_adjust(void *); 175 static bool is_cpu_sensor(const envsys_data_t *); 176 static bool is_drive_sensor(const envsys_data_t *); 177 static bool is_slots_sensor(const envsys_data_t *); 178 179 int smu_get_datablock(int, uint8_t *, size_t); 180 181 CFATTACH_DECL_NEW(smu, sizeof(struct smu_softc), 182 smu_match, smu_attach, NULL, NULL); 183 184 static struct smu_softc *smu0 = NULL; 185 186 static int 187 smu_match(device_t parent, struct cfdata *cf, void *aux) 188 { 189 struct confargs *ca = aux; 190 191 if (strcmp(ca->ca_name, "smu") == 0) 192 return 5; 193 194 return 0; 195 } 196 197 static void 198 smu_attach(device_t parent, device_t self, void *aux) 199 { 200 struct confargs *ca = aux; 201 struct smu_softc *sc = device_private(self); 202 203 sc->sc_dev = self; 204 sc->sc_node = ca->ca_node; 205 206 if (smu0 == NULL) 207 smu0 = sc; 208 209 sysctl_createv(NULL, 0, NULL, (void *) &sc->sc_sysctl_me, 210 CTLFLAG_READWRITE, 211 CTLTYPE_NODE, device_xname(sc->sc_dev), NULL, 212 NULL, 0, NULL, 0, 213 CTL_MACHDEP, CTL_CREATE, CTL_EOL); 214 215 if (smu_setup_doorbell(sc) != 0) { 216 aprint_normal(": unable to set up doorbell\n"); 217 return; 218 } 219 220 aprint_normal("\n"); 221 222 smu_setup_fans(sc); 223 smu_setup_iicbus(sc); 224 225 sc->sc_todr.todr_gettime_ymdhms = smu_todr_gettime_ymdhms; 226 sc->sc_todr.todr_settime_ymdhms = smu_todr_settime_ymdhms; 227 sc->sc_todr.cookie = sc; 228 todr_attach(&sc->sc_todr); 229 230 smu_setup_sme(sc); 231 232 smu_setup_zones(sc); 233 } 234 235 static int 236 smu_setup_doorbell(struct smu_softc *sc) 237 { 238 int node, parent, reg[4], gpio_base, irq; 239 240 mutex_init(&sc->sc_cmd_lock, MUTEX_DEFAULT, IPL_NONE); 241 sc->sc_cmd = malloc(4096, M_DEVBUF, M_WAITOK); 242 sc->sc_cmd_paddr = vtophys((vaddr_t) sc->sc_cmd); 243 244 DPRINTF("%s: cmd vaddr 0x%x paddr 0x%x\n", 245 __func__, (unsigned int) sc->sc_cmd, 246 (unsigned int) sc->sc_cmd_paddr); 247 248 if (OF_getprop(sc->sc_node, "platform-doorbell-buff", 249 &node, sizeof(node)) <= 0) 250 return -1; 251 252 if (OF_getprop(node, "platform-do-doorbell-buff", 253 reg, sizeof(reg)) < sizeof(reg)) 254 return -1; 255 256 sc->sc_dbell_mbox = reg[3]; 257 258 if (OF_getprop(sc->sc_node, "platform-doorbell-ack", 259 &node, sizeof(node)) <= 0) 260 return -1; 261 262 parent = OF_parent(node); 263 if (parent == 0) 264 return -1; 265 266 if (OF_getprop(parent, "reg", &gpio_base, sizeof(gpio_base)) <= 0) 267 return -1; 268 269 if (OF_getprop(node, "reg", reg, sizeof(reg)) <= 0) 270 return -1; 271 272 if (OF_getprop(node, "interrupts", &irq, sizeof(irq)) <= 0) 273 return -1; 274 275 sc->sc_dbell_gpio = gpio_base + reg[0]; 276 277 aprint_normal(" mbox 0x%x gpio 0x%x irq %d", 278 sc->sc_dbell_mbox, sc->sc_dbell_gpio, irq); 279 280 intr_establish(irq, IST_EDGE_FALLING, IPL_TTY, smu_dbell_gpio_intr, sc); 281 282 return 0; 283 } 284 285 static void 286 smu_setup_fans(struct smu_softc *sc) 287 { 288 struct smu_fan *fan; 289 struct sysctlnode *sysctl_fans, *sysctl_fan, *sysctl_node; 290 char type[32], sysctl_fan_name[32]; 291 int node, i, j; 292 293 node = of_getnode_byname(sc->sc_node, "fans"); 294 for (node = OF_child(node); 295 (node != 0) && (sc->sc_num_fans < SMU_MAX_FANS); 296 node = OF_peer(node)) { 297 fan = &sc->sc_fans[sc->sc_num_fans]; 298 fan->sc = sc; 299 300 memset(fan->location, 0, sizeof(fan->location)); 301 OF_getprop(node, "location", fan->location, 302 sizeof(fan->location)); 303 304 if (OF_getprop(node, "reg", &fan->reg, 305 sizeof(fan->reg)) <= 0) 306 continue; 307 308 if (OF_getprop(node, "zone", &fan->zone, 309 sizeof(fan->zone)) <= 0) 310 continue; 311 312 memset(type, 0, sizeof(type)); 313 OF_getprop(node, "device_type", type, sizeof(type)); 314 if (strcmp(type, "fan-rpm-control") == 0) 315 fan->rpm_ctl = 1; 316 else 317 fan->rpm_ctl = 0; 318 319 if (OF_getprop(node, "min-value", &fan->min_rpm, 320 sizeof(fan->min_rpm)) <= 0) 321 fan->min_rpm = 0; 322 323 if (OF_getprop(node, "max-value", &fan->max_rpm, 324 sizeof(fan->max_rpm)) <= 0) 325 fan->max_rpm = 0xffff; 326 327 if (OF_getprop(node, "unmanage-value", &fan->default_rpm, 328 sizeof(fan->default_rpm)) <= 0) 329 fan->default_rpm = fan->max_rpm; 330 331 DPRINTF("fan: location %s reg %x zone %d rpm_ctl %d " 332 "min_rpm %d max_rpm %d default_rpm %d\n", 333 fan->location, fan->reg, fan->zone, fan->rpm_ctl, 334 fan->min_rpm, fan->max_rpm, fan->default_rpm); 335 336 sc->sc_num_fans++; 337 } 338 339 for (i = 0; i < sc->sc_num_fans; i++) { 340 fan = &sc->sc_fans[i]; 341 smu_fan_set_rpm(fan, fan->default_rpm); 342 smu_fan_get_rpm(fan, &fan->current_rpm); 343 } 344 345 /* Create sysctl nodes for each fan */ 346 347 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_fans, 348 CTLFLAG_READWRITE | CTLFLAG_OWNDESC, 349 CTLTYPE_NODE, "fans", NULL, 350 NULL, 0, NULL, 0, 351 CTL_MACHDEP, 352 sc->sc_sysctl_me->sysctl_num, 353 CTL_CREATE, CTL_EOL); 354 355 for (i = 0; i < sc->sc_num_fans; i++) { 356 fan = &sc->sc_fans[i]; 357 358 for (j = 0; j < strlen(fan->location); j++) { 359 sysctl_fan_name[j] = tolower(fan->location[j]); 360 if (sysctl_fan_name[j] == ' ') 361 sysctl_fan_name[j] = '_'; 362 } 363 sysctl_fan_name[j] = '\0'; 364 365 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_fan, 366 CTLFLAG_READWRITE | CTLFLAG_OWNDESC, 367 CTLTYPE_NODE, sysctl_fan_name, "fan information", 368 NULL, 0, NULL, 0, 369 CTL_MACHDEP, 370 sc->sc_sysctl_me->sysctl_num, 371 sysctl_fans->sysctl_num, 372 CTL_CREATE, CTL_EOL); 373 374 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 375 CTLFLAG_READONLY | CTLFLAG_OWNDESC, 376 CTLTYPE_INT, "zone", "fan zone", 377 NULL, 0, &fan->zone, 0, 378 CTL_MACHDEP, 379 sc->sc_sysctl_me->sysctl_num, 380 sysctl_fans->sysctl_num, 381 sysctl_fan->sysctl_num, 382 CTL_CREATE, CTL_EOL); 383 384 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 385 CTLFLAG_READONLY | CTLFLAG_OWNDESC, 386 CTLTYPE_INT, "min_rpm", "fan minimum rpm", 387 NULL, 0, &fan->min_rpm, 0, 388 CTL_MACHDEP, 389 sc->sc_sysctl_me->sysctl_num, 390 sysctl_fans->sysctl_num, 391 sysctl_fan->sysctl_num, 392 CTL_CREATE, CTL_EOL); 393 394 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 395 CTLFLAG_READONLY | CTLFLAG_OWNDESC, 396 CTLTYPE_INT, "max_rpm", "fan maximum rpm", 397 NULL, 0, &fan->max_rpm, 0, 398 CTL_MACHDEP, 399 sc->sc_sysctl_me->sysctl_num, 400 sysctl_fans->sysctl_num, 401 sysctl_fan->sysctl_num, 402 CTL_CREATE, CTL_EOL); 403 404 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 405 CTLFLAG_READONLY | CTLFLAG_OWNDESC, 406 CTLTYPE_INT, "default_rpm", "fan default rpm", 407 NULL, 0, &fan->default_rpm, 0, 408 CTL_MACHDEP, 409 sc->sc_sysctl_me->sysctl_num, 410 sysctl_fans->sysctl_num, 411 sysctl_fan->sysctl_num, 412 CTL_CREATE, CTL_EOL); 413 414 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 415 CTLFLAG_READWRITE | CTLFLAG_OWNDESC, 416 CTLTYPE_INT, "rpm", "fan current rpm", 417 smu_sysctl_fan_rpm, 0, (void *) fan, 0, 418 CTL_MACHDEP, 419 sc->sc_sysctl_me->sysctl_num, 420 sysctl_fans->sysctl_num, 421 sysctl_fan->sysctl_num, 422 CTL_CREATE, CTL_EOL); 423 } 424 } 425 426 static void 427 smu_setup_iicbus(struct smu_softc *sc) 428 { 429 struct smu_iicbus *iicbus; 430 struct i2c_controller *i2c; 431 struct smu_iicbus_confargs ca; 432 int node; 433 char name[32]; 434 435 node = of_getnode_byname(sc->sc_node, "smu-i2c-control"); 436 for (node = OF_child(node); 437 (node != 0) && (sc->sc_num_iicbus < SMU_MAX_IICBUS); 438 node = OF_peer(node)) { 439 memset(name, 0, sizeof(name)); 440 OF_getprop(node, "name", name, sizeof(name)); 441 if (strcmp(name, "i2c-bus") != 0) 442 continue; 443 444 iicbus = &sc->sc_iicbus[sc->sc_num_iicbus]; 445 iicbus->sc = sc; 446 i2c = &iicbus->i2c; 447 448 if (OF_getprop(node, "reg", &iicbus->reg, sizeof(iicbus->reg)) <= 0) 449 continue; 450 451 DPRINTF("iicbus: reg %x\n", iicbus->reg); 452 453 iic_tag_init(i2c); 454 i2c->ic_cookie = iicbus; 455 i2c->ic_exec = smu_iicbus_exec; 456 457 ca.ca_name = name; 458 ca.ca_node = node; 459 ca.ca_tag = i2c; 460 config_found_ia(sc->sc_dev, "smu", &ca, smu_iicbus_print); 461 462 sc->sc_num_iicbus++; 463 } 464 } 465 466 static void 467 smu_setup_sme(struct smu_softc *sc) 468 { 469 struct smu_fan *fan; 470 envsys_data_t *sme_sensor; 471 int i; 472 473 sc->sc_sme = sysmon_envsys_create(); 474 475 for (i = 0; i < sc->sc_num_fans; i++) { 476 sme_sensor = &sc->sc_sme_sensors[i]; 477 fan = &sc->sc_fans[i]; 478 479 sme_sensor->units = ENVSYS_SFANRPM; 480 sme_sensor->state = ENVSYS_SINVALID; 481 snprintf(sme_sensor->desc, sizeof(sme_sensor->desc), 482 "%s", fan->location); 483 484 if (sysmon_envsys_sensor_attach(sc->sc_sme, sme_sensor)) { 485 sysmon_envsys_destroy(sc->sc_sme); 486 return; 487 } 488 } 489 490 sc->sc_sme->sme_name = device_xname(sc->sc_dev); 491 sc->sc_sme->sme_cookie = sc; 492 sc->sc_sme->sme_refresh = smu_sme_refresh; 493 494 if (sysmon_envsys_register(sc->sc_sme)) { 495 aprint_error_dev(sc->sc_dev, 496 "unable to register with sysmon\n"); 497 sysmon_envsys_destroy(sc->sc_sme); 498 } 499 } 500 501 static int 502 smu_iicbus_print(void *aux, const char *smu) 503 { 504 struct smu_iicbus_confargs *ca = aux; 505 506 if (smu) 507 aprint_normal("%s at %s", ca->ca_name, smu); 508 509 return UNCONF; 510 } 511 512 static void 513 smu_sme_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 514 { 515 struct smu_softc *sc = sme->sme_cookie; 516 struct smu_fan *fan; 517 int which = edata->sensor; 518 int ret; 519 520 edata->state = ENVSYS_SINVALID; 521 522 if (which < sc->sc_num_fans) { 523 fan = &sc->sc_fans[which]; 524 525 ret = smu_fan_get_rpm(fan, &fan->current_rpm); 526 if (ret == 0) { 527 edata->value_cur = fan->current_rpm; 528 edata->state = ENVSYS_SVALID; 529 } 530 } 531 } 532 533 static int 534 smu_do_cmd(struct smu_softc *sc, struct smu_cmd *cmd, int timo) 535 { 536 int gpio, ret, bail; 537 u_char ack; 538 539 mutex_enter(&sc->sc_cmd_lock); 540 541 DPRINTF("%s: cmd %02x len %02x\n", __func__, cmd->cmd, cmd->len); 542 DPRINTF("%s: data %02x %02x %02x %02x %02x %02x %02x %02x\n", __func__, 543 cmd->data[0], cmd->data[1], cmd->data[2], cmd->data[3], 544 cmd->data[4], cmd->data[5], cmd->data[6], cmd->data[7]); 545 546 sc->sc_cmd->cmd = cmd->cmd; 547 sc->sc_cmd->len = cmd->len; 548 memcpy(sc->sc_cmd->data, cmd->data, cmd->len); 549 550 __asm volatile ("dcbf 0,%0; sync" :: "r"(sc->sc_cmd) : "memory"); 551 552 obio_write_4(sc->sc_dbell_mbox, sc->sc_cmd_paddr); 553 obio_write_1(sc->sc_dbell_gpio, 0x04); 554 555 bail = 0; 556 557 gpio = obio_read_1(sc->sc_dbell_gpio); 558 559 while (((gpio & 0x07) != 0x07) && (bail < timo)) { 560 ret = tsleep(sc->sc_cmd, PWAIT, "smu_cmd", mstohz(10)); 561 if (ret != 0) { 562 bail++; 563 } 564 gpio = obio_read_1(sc->sc_dbell_gpio); 565 } 566 567 if ((gpio & 0x07) != 0x07) { 568 mutex_exit(&sc->sc_cmd_lock); 569 return EWOULDBLOCK; 570 } 571 572 __asm volatile ("dcbf 0,%0; sync" :: "r"(sc->sc_cmd) : "memory"); 573 574 ack = (~cmd->cmd) & 0xff; 575 if (sc->sc_cmd->cmd != ack) { 576 DPRINTF("%s: invalid ack, got %x expected %x\n", 577 __func__, sc->sc_cmd->cmd, ack); 578 mutex_exit(&sc->sc_cmd_lock); 579 return EIO; 580 } 581 582 cmd->cmd = sc->sc_cmd->cmd; 583 cmd->len = sc->sc_cmd->len; 584 memcpy(cmd->data, sc->sc_cmd->data, sc->sc_cmd->len); 585 586 mutex_exit(&sc->sc_cmd_lock); 587 588 return 0; 589 } 590 591 592 static int 593 smu_dbell_gpio_intr(void *arg) 594 { 595 struct smu_softc *sc = arg; 596 597 DPRINTF("%s\n", __func__); 598 599 wakeup(sc->sc_cmd); 600 601 return 1; 602 } 603 604 void 605 smu_poweroff(void) 606 { 607 struct smu_cmd cmd; 608 609 if (smu0 == NULL) 610 return; 611 612 cmd.cmd = SMU_CMD_POWER; 613 strcpy(cmd.data, "SHUTDOWN"); 614 cmd.len = strlen(cmd.data) + 1; 615 smu_do_cmd(smu0, &cmd, 800); 616 617 for (;;); 618 } 619 620 void 621 smu_restart(void) 622 { 623 struct smu_cmd cmd; 624 625 if (smu0 == NULL) 626 return; 627 628 cmd.cmd = SMU_CMD_POWER; 629 strcpy(cmd.data, "RESTART"); 630 cmd.len = strlen(cmd.data) + 1; 631 smu_do_cmd(smu0, &cmd, 800); 632 633 for (;;); 634 } 635 636 static int 637 smu_todr_gettime_ymdhms(todr_chip_handle_t tch, struct clock_ymdhms *dt) 638 { 639 struct smu_softc *sc = tch->cookie; 640 struct smu_cmd cmd; 641 int ret; 642 643 cmd.cmd = SMU_CMD_RTC; 644 cmd.len = 1; 645 cmd.data[0] = 0x81; 646 647 ret = smu_do_cmd(sc, &cmd, 800); 648 if (ret != 0) 649 return ret; 650 651 dt->dt_sec = bcdtobin(cmd.data[0]); 652 dt->dt_min = bcdtobin(cmd.data[1]); 653 dt->dt_hour = bcdtobin(cmd.data[2]); 654 dt->dt_wday = bcdtobin(cmd.data[3]); 655 dt->dt_day = bcdtobin(cmd.data[4]); 656 dt->dt_mon = bcdtobin(cmd.data[5]); 657 dt->dt_year = bcdtobin(cmd.data[6]) + 2000; 658 659 return 0; 660 } 661 662 static int 663 smu_todr_settime_ymdhms(todr_chip_handle_t tch, struct clock_ymdhms *dt) 664 { 665 struct smu_softc *sc = tch->cookie; 666 struct smu_cmd cmd; 667 668 cmd.cmd = SMU_CMD_RTC; 669 cmd.len = 8; 670 cmd.data[0] = 0x80; 671 cmd.data[1] = bintobcd(dt->dt_sec); 672 cmd.data[2] = bintobcd(dt->dt_min); 673 cmd.data[3] = bintobcd(dt->dt_hour); 674 cmd.data[4] = bintobcd(dt->dt_wday); 675 cmd.data[5] = bintobcd(dt->dt_day); 676 cmd.data[6] = bintobcd(dt->dt_mon); 677 cmd.data[7] = bintobcd(dt->dt_year - 2000); 678 679 return smu_do_cmd(sc, &cmd, 800); 680 } 681 682 static int 683 smu_fan_update_rpm(struct smu_fan *fan) 684 { 685 struct smu_softc *sc = fan->sc; 686 struct smu_cmd cmd; 687 int ret; 688 689 cmd.cmd = SMU_CMD_FAN; 690 cmd.len = 2; 691 cmd.data[0] = 0x31; 692 cmd.data[1] = fan->reg; 693 694 ret = smu_do_cmd(sc, &cmd, 800); 695 if (ret == 0) { 696 fan->last_update = time_uptime; 697 fan->current_rpm = (cmd.data[0] << 8) | cmd.data[1]; 698 } else { 699 cmd.cmd = SMU_CMD_FAN; 700 cmd.len = 1; 701 cmd.data[0] = 0x01; 702 703 ret = smu_do_cmd(sc, &cmd, 800); 704 if (ret == 0) { 705 fan->last_update = time_uptime; 706 fan->current_rpm = (cmd.data[1 + fan->reg * 2] << 8) | 707 cmd.data[2 + fan->reg * 2]; 708 } 709 } 710 711 return ret; 712 } 713 714 static int 715 smu_fan_get_rpm(struct smu_fan *fan, int *rpm) 716 { 717 int ret; 718 ret = 0; 719 720 if (time_uptime - fan->last_update > 1) { 721 ret = smu_fan_update_rpm(fan); 722 if (ret != 0) 723 return ret; 724 } 725 726 *rpm = fan->current_rpm; 727 728 return ret; 729 } 730 731 static int 732 smu_fan_set_rpm(struct smu_fan *fan, int rpm) 733 { 734 struct smu_softc *sc = fan->sc; 735 struct smu_cmd cmd; 736 int ret; 737 738 DPRINTF("%s: fan %s rpm %d\n", __func__, fan->location, rpm); 739 740 rpm = uimax(fan->min_rpm, rpm); 741 rpm = uimin(fan->max_rpm, rpm); 742 743 cmd.cmd = SMU_CMD_FAN; 744 cmd.len = 4; 745 cmd.data[0] = 0x30; 746 cmd.data[1] = fan->reg; 747 cmd.data[2] = (rpm >> 8) & 0xff; 748 cmd.data[3] = rpm & 0xff; 749 750 ret = smu_do_cmd(sc, &cmd, 800); 751 if (ret != 0) { 752 cmd.cmd = SMU_CMD_FAN; 753 cmd.len = 14; 754 cmd.data[0] = fan->rpm_ctl ? 0x00 : 0x10; 755 cmd.data[1] = 1 << fan->reg; 756 cmd.data[2] = cmd.data[2 + fan->reg * 2] = (rpm >> 8) & 0xff; 757 cmd.data[3] = cmd.data[3 + fan->reg * 2] = rpm & 0xff; 758 759 ret = smu_do_cmd(sc, &cmd, 800); 760 } 761 762 return ret; 763 } 764 765 static int 766 smu_iicbus_exec(void *cookie, i2c_op_t op, i2c_addr_t addr, const void *send, 767 size_t send_len, void *recv, size_t recv_len, int flags) 768 { 769 struct smu_iicbus *iicbus = cookie; 770 struct smu_softc *sc = iicbus->sc; 771 struct smu_cmd cmd; 772 int retries, ret; 773 774 DPRINTF("%s: op %x addr %x send_len %d recv_len %d\n", 775 __func__, op, addr, send_len, recv_len); 776 777 cmd.cmd = SMU_CMD_I2C; 778 cmd.len = 9 + recv_len; 779 cmd.data[0] = iicbus->reg; 780 cmd.data[1] = I2C_OP_READ_P(op) ? 0x02 : 0x00; 781 cmd.data[2] = addr << 1; 782 cmd.data[3] = send_len; 783 memcpy(&cmd.data[4], send, send_len); 784 cmd.data[7] = addr << 1; 785 if (I2C_OP_READ_P(op)) 786 cmd.data[7] |= 0x01; 787 cmd.data[8] = recv_len; 788 memcpy(&cmd.data[9], recv, recv_len); 789 790 ret = smu_do_cmd(sc, &cmd, 800); 791 if (ret != 0) 792 return (ret); 793 794 for (retries = 0; retries < 10; retries++) { 795 cmd.cmd = SMU_CMD_I2C; 796 cmd.len = 1; 797 cmd.data[0] = 0x00; 798 memset(&cmd.data[1], 0xff, recv_len); 799 800 ret = smu_do_cmd(sc, &cmd, 800); 801 802 DPRINTF("%s: cmd data[0] %x\n", __func__, cmd.data[0]); 803 804 if (ret == 0 && (cmd.data[0] & 0x80) == 0) 805 break; 806 807 DELAY(10000); 808 } 809 810 if (cmd.data[0] & 0x80) 811 return EIO; 812 813 if (I2C_OP_READ_P(op)) 814 memcpy(recv, &cmd.data[1], recv_len); 815 816 return 0; 817 } 818 819 static int 820 smu_sysctl_fan_rpm(SYSCTLFN_ARGS) 821 { 822 struct sysctlnode node = *rnode; 823 struct smu_fan *fan = node.sysctl_data; 824 int rpm = 0; 825 int ret; 826 827 node.sysctl_data = &rpm; 828 829 if (newp) { 830 if (sysctl_lookup(SYSCTLFN_CALL(&node)) == 0) { 831 rpm = *(int *) node.sysctl_data; 832 return smu_fan_set_rpm(fan, rpm); 833 } 834 return EINVAL; 835 } else { 836 ret = smu_fan_get_rpm(fan, &rpm); 837 if (ret != 0) 838 return (ret); 839 840 return sysctl_lookup(SYSCTLFN_CALL(&node)); 841 } 842 843 return 0; 844 } 845 846 SYSCTL_SETUP(smu_sysctl_setup, "SMU sysctl subtree setup") 847 { 848 sysctl_createv(NULL, 0, NULL, NULL, 849 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", NULL, 850 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL); 851 } 852 853 static void 854 smu_setup_zones(struct smu_softc *sc) 855 { 856 struct smu_zone *z; 857 struct smu_fan *f; 858 int i; 859 860 /* find CPU fans */ 861 z = &sc->sc_zones[SMU_ZONE_CPUS]; 862 z->nfans = 0; 863 for (i = 0; i < SMU_MAX_FANS; i++) { 864 f = &sc->sc_fans[i]; 865 if (strstr(f->location, "CPU") != NULL) { 866 z->fans[z->nfans] = i; 867 z->nfans++; 868 } 869 } 870 aprint_normal_dev(sc->sc_dev, 871 "using %d fans for CPU zone\n", z->nfans); 872 z->threshold = C_TO_uK(45); 873 z->duty = 150; 874 z->step = 3; 875 z->filter = is_cpu_sensor; 876 877 z = &sc->sc_zones[SMU_ZONE_DRIVES]; 878 z->nfans = 0; 879 for (i = 0; i < SMU_MAX_FANS; i++) { 880 f = &sc->sc_fans[i]; 881 if (strstr(f->location, "DRIVE") != NULL) { 882 z->fans[z->nfans] = i; 883 z->nfans++; 884 } 885 } 886 aprint_normal_dev(sc->sc_dev, 887 "using %d fans for drive bay zone\n", z->nfans); 888 z->threshold = C_TO_uK(40); 889 z->duty = 150; 890 z->step = 2; 891 z->filter = is_drive_sensor; 892 893 z = &sc->sc_zones[SMU_ZONE_SLOTS]; 894 z->nfans = 0; 895 for (i = 0; i < SMU_MAX_FANS; i++) { 896 f = &sc->sc_fans[i]; 897 if ((strstr(f->location, "BACKSIDE") != NULL) || 898 (strstr(f->location, "SLOTS") != NULL)) { 899 z->fans[z->nfans] = i; 900 z->nfans++; 901 } 902 } 903 aprint_normal_dev(sc->sc_dev, 904 "using %d fans for expansion slots zone\n", z->nfans); 905 z->threshold = C_TO_uK(40); 906 z->duty = 150; 907 z->step = 2; 908 z->filter = is_slots_sensor; 909 910 sc->sc_dying = false; 911 kthread_create(PRI_NONE, 0, curcpu(), smu_adjust, sc, &sc->sc_thread, 912 "fan control"); 913 } 914 915 static void 916 smu_adjust_zone(struct smu_softc *sc, int which) 917 { 918 struct smu_zone *z = &sc->sc_zones[which]; 919 struct smu_fan *f; 920 long temp, newduty, i, speed, diff; 921 922 DPRINTF("%s %d\n", __func__, which); 923 924 temp = sysmon_envsys_get_max_value(z->filter, true); 925 if (temp == 0) { 926 /* no sensor data - leave fan alone */ 927 DPRINTF("nodata\n"); 928 return; 929 } 930 DPRINTF("temp %ld ", (temp - 273150000) / 1000000); 931 diff = ((temp - z->threshold) / 1000000) * z->step; 932 933 if (diff < 0) newduty = 0; 934 else if (diff > 100) newduty = 100; 935 else newduty = diff; 936 937 DPRINTF("newduty %ld diff %ld \n", newduty, diff); 938 if (newduty == z->duty) { 939 DPRINTF("no change\n"); 940 return; 941 } 942 z->duty = newduty; 943 /* now adjust each fan to the new duty cycle */ 944 for (i = 0; i < z->nfans; i++) { 945 f = &sc->sc_fans[z->fans[i]]; 946 speed = f->min_rpm + ((f->max_rpm - f->min_rpm) * newduty) / 100; 947 DPRINTF("fan %d speed %ld ", z->fans[i], speed); 948 smu_fan_set_rpm(f, speed); 949 } 950 DPRINTF("\n"); 951 } 952 953 static void 954 smu_adjust(void *cookie) 955 { 956 struct smu_softc *sc = cookie; 957 int i; 958 959 while (!sc->sc_dying) { 960 for (i = 0; i < SMU_ZONES; i++) 961 smu_adjust_zone(sc, i); 962 kpause("fanctrl", true, mstohz(30000), NULL); 963 } 964 kthread_exit(0); 965 } 966 967 static bool is_cpu_sensor(const envsys_data_t *edata) 968 { 969 if (edata->units != ENVSYS_STEMP) 970 return false; 971 if ((strstr(edata->desc, "CPU") != NULL) && 972 (strstr(edata->desc, "DIODE") != NULL)) 973 return TRUE; 974 if (strstr(edata->desc, "TUNNEL") != NULL) 975 return TRUE; 976 return false; 977 } 978 979 static bool is_drive_sensor(const envsys_data_t *edata) 980 { 981 if (edata->units != ENVSYS_STEMP) 982 return false; 983 if (strstr(edata->desc, "DRIVE BAY") != NULL) 984 return TRUE; 985 return false; 986 } 987 988 static bool is_slots_sensor(const envsys_data_t *edata) 989 { 990 if (edata->units != ENVSYS_STEMP) 991 return false; 992 if (strstr(edata->desc, "BACKSIDE") != NULL) 993 return TRUE; 994 if (strstr(edata->desc, "INLET") != NULL) 995 return TRUE; 996 return false; 997 } 998 999 int 1000 smu_get_datablock(int id, uint8_t *buf, size_t len) 1001 { 1002 struct smu_cmd cmd; 1003 1004 cmd.cmd = SMU_PARTITION; 1005 cmd.len = 2; 1006 cmd.data[0] = SMU_PARTITION_LATEST; 1007 cmd.data[1] = id; 1008 smu_do_cmd(smu0, &cmd, 100); 1009 1010 cmd.data[4] = cmd.data[0]; 1011 cmd.data[5] = cmd.data[1]; 1012 1013 cmd.cmd = SMU_MISC; 1014 cmd.len = 7; 1015 cmd.data[0] = SMU_MISC_GET_DATA; 1016 cmd.data[1] = 4; 1017 cmd.data[2] = 0; 1018 cmd.data[3] = 0; 1019 cmd.data[6] = len; 1020 smu_do_cmd(smu0, &cmd, 100); 1021 1022 memcpy(buf, cmd.data, len); 1023 return 0; 1024 } 1025