smu.c revision 1.8
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 smu_setup_fans(sc); 221 smu_setup_iicbus(sc); 222 223 sc->sc_todr.todr_gettime_ymdhms = smu_todr_gettime_ymdhms; 224 sc->sc_todr.todr_settime_ymdhms = smu_todr_settime_ymdhms; 225 sc->sc_todr.cookie = sc; 226 todr_attach(&sc->sc_todr); 227 228 smu_setup_sme(sc); 229 230 printf("\n"); 231 smu_setup_zones(sc); 232 } 233 234 static int 235 smu_setup_doorbell(struct smu_softc *sc) 236 { 237 int node, parent, reg[4], gpio_base, irq; 238 239 mutex_init(&sc->sc_cmd_lock, MUTEX_DEFAULT, IPL_NONE); 240 sc->sc_cmd = malloc(4096, M_DEVBUF, M_WAITOK); 241 sc->sc_cmd_paddr = vtophys((vaddr_t) sc->sc_cmd); 242 243 DPRINTF("%s: cmd vaddr 0x%x paddr 0x%x\n", 244 __func__, (unsigned int) sc->sc_cmd, 245 (unsigned int) sc->sc_cmd_paddr); 246 247 if (OF_getprop(sc->sc_node, "platform-doorbell-buff", 248 &node, sizeof(node)) <= 0) 249 return -1; 250 251 if (OF_getprop(node, "platform-do-doorbell-buff", 252 reg, sizeof(reg)) < sizeof(reg)) 253 return -1; 254 255 sc->sc_dbell_mbox = reg[3]; 256 257 if (OF_getprop(sc->sc_node, "platform-doorbell-ack", 258 &node, sizeof(node)) <= 0) 259 return -1; 260 261 parent = OF_parent(node); 262 if (parent == 0) 263 return -1; 264 265 if (OF_getprop(parent, "reg", &gpio_base, sizeof(gpio_base)) <= 0) 266 return -1; 267 268 if (OF_getprop(node, "reg", reg, sizeof(reg)) <= 0) 269 return -1; 270 271 if (OF_getprop(node, "interrupts", &irq, sizeof(irq)) <= 0) 272 return -1; 273 274 sc->sc_dbell_gpio = gpio_base + reg[0]; 275 276 aprint_normal(" mbox 0x%x gpio 0x%x irq %d", 277 sc->sc_dbell_mbox, sc->sc_dbell_gpio, irq); 278 279 intr_establish(irq, IST_EDGE_FALLING, IPL_TTY, smu_dbell_gpio_intr, sc); 280 281 return 0; 282 } 283 284 static void 285 smu_setup_fans(struct smu_softc *sc) 286 { 287 struct smu_fan *fan; 288 struct sysctlnode *sysctl_fans, *sysctl_fan, *sysctl_node; 289 char type[32], sysctl_fan_name[32]; 290 int node, i, j; 291 292 node = of_getnode_byname(sc->sc_node, "fans"); 293 for (node = OF_child(node); 294 (node != 0) && (sc->sc_num_fans < SMU_MAX_FANS); 295 node = OF_peer(node)) { 296 fan = &sc->sc_fans[sc->sc_num_fans]; 297 fan->sc = sc; 298 299 memset(fan->location, 0, sizeof(fan->location)); 300 OF_getprop(node, "location", fan->location, 301 sizeof(fan->location)); 302 303 if (OF_getprop(node, "reg", &fan->reg, 304 sizeof(fan->reg)) <= 0) 305 continue; 306 307 if (OF_getprop(node, "zone", &fan->zone, 308 sizeof(fan->zone)) <= 0) 309 continue; 310 311 memset(type, 0, sizeof(type)); 312 OF_getprop(node, "device_type", type, sizeof(type)); 313 if (strcmp(type, "fan-rpm-control") == 0) 314 fan->rpm_ctl = 1; 315 else 316 fan->rpm_ctl = 0; 317 318 if (OF_getprop(node, "min-value", &fan->min_rpm, 319 sizeof(fan->min_rpm)) <= 0) 320 fan->min_rpm = 0; 321 322 if (OF_getprop(node, "max-value", &fan->max_rpm, 323 sizeof(fan->max_rpm)) <= 0) 324 fan->max_rpm = 0xffff; 325 326 if (OF_getprop(node, "unmanage-value", &fan->default_rpm, 327 sizeof(fan->default_rpm)) <= 0) 328 fan->default_rpm = fan->max_rpm; 329 330 DPRINTF("fan: location %s reg %x zone %d rpm_ctl %d " 331 "min_rpm %d max_rpm %d default_rpm %d\n", 332 fan->location, fan->reg, fan->zone, fan->rpm_ctl, 333 fan->min_rpm, fan->max_rpm, fan->default_rpm); 334 335 sc->sc_num_fans++; 336 } 337 338 for (i = 0; i < sc->sc_num_fans; i++) { 339 fan = &sc->sc_fans[i]; 340 smu_fan_set_rpm(fan, fan->default_rpm); 341 smu_fan_get_rpm(fan, &fan->current_rpm); 342 } 343 344 /* Create sysctl nodes for each fan */ 345 346 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_fans, 347 CTLFLAG_READWRITE | CTLFLAG_OWNDESC, 348 CTLTYPE_NODE, "fans", NULL, 349 NULL, 0, NULL, 0, 350 CTL_MACHDEP, 351 sc->sc_sysctl_me->sysctl_num, 352 CTL_CREATE, CTL_EOL); 353 354 for (i = 0; i < sc->sc_num_fans; i++) { 355 fan = &sc->sc_fans[i]; 356 357 for (j = 0; j < strlen(fan->location); j++) { 358 sysctl_fan_name[j] = tolower(fan->location[j]); 359 if (sysctl_fan_name[j] == ' ') 360 sysctl_fan_name[j] = '_'; 361 } 362 sysctl_fan_name[j] = '\0'; 363 364 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_fan, 365 CTLFLAG_READWRITE | CTLFLAG_OWNDESC, 366 CTLTYPE_NODE, sysctl_fan_name, "fan information", 367 NULL, 0, NULL, 0, 368 CTL_MACHDEP, 369 sc->sc_sysctl_me->sysctl_num, 370 sysctl_fans->sysctl_num, 371 CTL_CREATE, CTL_EOL); 372 373 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 374 CTLFLAG_READONLY | CTLFLAG_OWNDESC, 375 CTLTYPE_INT, "zone", "fan zone", 376 NULL, 0, &fan->zone, 0, 377 CTL_MACHDEP, 378 sc->sc_sysctl_me->sysctl_num, 379 sysctl_fans->sysctl_num, 380 sysctl_fan->sysctl_num, 381 CTL_CREATE, CTL_EOL); 382 383 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 384 CTLFLAG_READONLY | CTLFLAG_OWNDESC, 385 CTLTYPE_INT, "min_rpm", "fan minimum rpm", 386 NULL, 0, &fan->min_rpm, 0, 387 CTL_MACHDEP, 388 sc->sc_sysctl_me->sysctl_num, 389 sysctl_fans->sysctl_num, 390 sysctl_fan->sysctl_num, 391 CTL_CREATE, CTL_EOL); 392 393 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 394 CTLFLAG_READONLY | CTLFLAG_OWNDESC, 395 CTLTYPE_INT, "max_rpm", "fan maximum rpm", 396 NULL, 0, &fan->max_rpm, 0, 397 CTL_MACHDEP, 398 sc->sc_sysctl_me->sysctl_num, 399 sysctl_fans->sysctl_num, 400 sysctl_fan->sysctl_num, 401 CTL_CREATE, CTL_EOL); 402 403 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 404 CTLFLAG_READONLY | CTLFLAG_OWNDESC, 405 CTLTYPE_INT, "default_rpm", "fan default rpm", 406 NULL, 0, &fan->default_rpm, 0, 407 CTL_MACHDEP, 408 sc->sc_sysctl_me->sysctl_num, 409 sysctl_fans->sysctl_num, 410 sysctl_fan->sysctl_num, 411 CTL_CREATE, CTL_EOL); 412 413 sysctl_createv(NULL, 0, NULL, (void *) &sysctl_node, 414 CTLFLAG_READWRITE | CTLFLAG_OWNDESC, 415 CTLTYPE_INT, "rpm", "fan current rpm", 416 smu_sysctl_fan_rpm, 0, (void *) fan, 0, 417 CTL_MACHDEP, 418 sc->sc_sysctl_me->sysctl_num, 419 sysctl_fans->sysctl_num, 420 sysctl_fan->sysctl_num, 421 CTL_CREATE, CTL_EOL); 422 } 423 } 424 425 static void 426 smu_setup_iicbus(struct smu_softc *sc) 427 { 428 struct smu_iicbus *iicbus; 429 struct i2c_controller *i2c; 430 struct smu_iicbus_confargs ca; 431 int node; 432 char name[32]; 433 434 node = of_getnode_byname(sc->sc_node, "smu-i2c-control"); 435 for (node = OF_child(node); 436 (node != 0) && (sc->sc_num_iicbus < SMU_MAX_IICBUS); 437 node = OF_peer(node)) { 438 memset(name, 0, sizeof(name)); 439 OF_getprop(node, "name", name, sizeof(name)); 440 if (strcmp(name, "i2c-bus") != 0) 441 continue; 442 443 iicbus = &sc->sc_iicbus[sc->sc_num_iicbus]; 444 iicbus->sc = sc; 445 i2c = &iicbus->i2c; 446 447 if (OF_getprop(node, "reg", &iicbus->reg, sizeof(iicbus->reg)) <= 0) 448 continue; 449 450 DPRINTF("iicbus: reg %x\n", iicbus->reg); 451 452 iic_tag_init(i2c); 453 i2c->ic_cookie = iicbus; 454 i2c->ic_exec = smu_iicbus_exec; 455 456 ca.ca_name = name; 457 ca.ca_node = node; 458 ca.ca_tag = i2c; 459 config_found_ia(sc->sc_dev, "smu", &ca, smu_iicbus_print); 460 461 sc->sc_num_iicbus++; 462 } 463 } 464 465 static void 466 smu_setup_sme(struct smu_softc *sc) 467 { 468 struct smu_fan *fan; 469 envsys_data_t *sme_sensor; 470 int i; 471 472 sc->sc_sme = sysmon_envsys_create(); 473 474 for (i = 0; i < sc->sc_num_fans; i++) { 475 sme_sensor = &sc->sc_sme_sensors[i]; 476 fan = &sc->sc_fans[i]; 477 478 sme_sensor->units = ENVSYS_SFANRPM; 479 sme_sensor->state = ENVSYS_SINVALID; 480 snprintf(sme_sensor->desc, sizeof(sme_sensor->desc), 481 "%s", fan->location); 482 483 if (sysmon_envsys_sensor_attach(sc->sc_sme, sme_sensor)) { 484 sysmon_envsys_destroy(sc->sc_sme); 485 return; 486 } 487 } 488 489 sc->sc_sme->sme_name = device_xname(sc->sc_dev); 490 sc->sc_sme->sme_cookie = sc; 491 sc->sc_sme->sme_refresh = smu_sme_refresh; 492 493 if (sysmon_envsys_register(sc->sc_sme)) { 494 aprint_error_dev(sc->sc_dev, 495 "unable to register with sysmon\n"); 496 sysmon_envsys_destroy(sc->sc_sme); 497 } 498 } 499 500 static int 501 smu_iicbus_print(void *aux, const char *smu) 502 { 503 struct smu_iicbus_confargs *ca = aux; 504 505 if (smu) 506 aprint_normal("%s at %s", ca->ca_name, smu); 507 508 return UNCONF; 509 } 510 511 static void 512 smu_sme_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 513 { 514 struct smu_softc *sc = sme->sme_cookie; 515 struct smu_fan *fan; 516 int which = edata->sensor; 517 int ret; 518 519 edata->state = ENVSYS_SINVALID; 520 521 if (which < sc->sc_num_fans) { 522 fan = &sc->sc_fans[which]; 523 524 ret = smu_fan_get_rpm(fan, &fan->current_rpm); 525 if (ret == 0) { 526 edata->value_cur = fan->current_rpm; 527 edata->state = ENVSYS_SVALID; 528 } 529 } 530 } 531 532 static int 533 smu_do_cmd(struct smu_softc *sc, struct smu_cmd *cmd, int timo) 534 { 535 int gpio, ret, bail; 536 u_char ack; 537 538 mutex_enter(&sc->sc_cmd_lock); 539 540 DPRINTF("%s: cmd %02x len %02x\n", __func__, cmd->cmd, cmd->len); 541 DPRINTF("%s: data %02x %02x %02x %02x %02x %02x %02x %02x\n", __func__, 542 cmd->data[0], cmd->data[1], cmd->data[2], cmd->data[3], 543 cmd->data[4], cmd->data[5], cmd->data[6], cmd->data[7]); 544 545 sc->sc_cmd->cmd = cmd->cmd; 546 sc->sc_cmd->len = cmd->len; 547 memcpy(sc->sc_cmd->data, cmd->data, cmd->len); 548 549 __asm volatile ("dcbf 0,%0; sync" :: "r"(sc->sc_cmd) : "memory"); 550 551 obio_write_4(sc->sc_dbell_mbox, sc->sc_cmd_paddr); 552 obio_write_1(sc->sc_dbell_gpio, 0x04); 553 554 bail = 0; 555 556 gpio = obio_read_1(sc->sc_dbell_gpio); 557 558 while (((gpio & 0x07) != 0x07) && (bail < timo)) { 559 ret = tsleep(sc->sc_cmd, PWAIT, "smu_cmd", mstohz(10)); 560 if (ret != 0) { 561 bail++; 562 } 563 gpio = obio_read_1(sc->sc_dbell_gpio); 564 } 565 566 if ((gpio & 0x07) != 0x07) { 567 mutex_exit(&sc->sc_cmd_lock); 568 return EWOULDBLOCK; 569 } 570 571 __asm volatile ("dcbf 0,%0; sync" :: "r"(sc->sc_cmd) : "memory"); 572 573 ack = (~cmd->cmd) & 0xff; 574 if (sc->sc_cmd->cmd != ack) { 575 DPRINTF("%s: invalid ack, got %x expected %x\n", 576 __func__, sc->sc_cmd->cmd, ack); 577 mutex_exit(&sc->sc_cmd_lock); 578 return EIO; 579 } 580 581 cmd->cmd = sc->sc_cmd->cmd; 582 cmd->len = sc->sc_cmd->len; 583 memcpy(cmd->data, sc->sc_cmd->data, sc->sc_cmd->len); 584 585 mutex_exit(&sc->sc_cmd_lock); 586 587 return 0; 588 } 589 590 591 static int 592 smu_dbell_gpio_intr(void *arg) 593 { 594 struct smu_softc *sc = arg; 595 596 DPRINTF("%s\n", __func__); 597 598 wakeup(sc->sc_cmd); 599 600 return 1; 601 } 602 603 void 604 smu_poweroff(void) 605 { 606 struct smu_cmd cmd; 607 608 if (smu0 == NULL) 609 return; 610 611 cmd.cmd = SMU_CMD_POWER; 612 strcpy(cmd.data, "SHUTDOWN"); 613 cmd.len = strlen(cmd.data) + 1; 614 smu_do_cmd(smu0, &cmd, 800); 615 616 for (;;); 617 } 618 619 void 620 smu_restart(void) 621 { 622 struct smu_cmd cmd; 623 624 if (smu0 == NULL) 625 return; 626 627 cmd.cmd = SMU_CMD_POWER; 628 strcpy(cmd.data, "RESTART"); 629 cmd.len = strlen(cmd.data) + 1; 630 smu_do_cmd(smu0, &cmd, 800); 631 632 for (;;); 633 } 634 635 static int 636 smu_todr_gettime_ymdhms(todr_chip_handle_t tch, struct clock_ymdhms *dt) 637 { 638 struct smu_softc *sc = tch->cookie; 639 struct smu_cmd cmd; 640 int ret; 641 642 cmd.cmd = SMU_CMD_RTC; 643 cmd.len = 1; 644 cmd.data[0] = 0x81; 645 646 ret = smu_do_cmd(sc, &cmd, 800); 647 if (ret != 0) 648 return ret; 649 650 dt->dt_sec = bcdtobin(cmd.data[0]); 651 dt->dt_min = bcdtobin(cmd.data[1]); 652 dt->dt_hour = bcdtobin(cmd.data[2]); 653 dt->dt_wday = bcdtobin(cmd.data[3]); 654 dt->dt_day = bcdtobin(cmd.data[4]); 655 dt->dt_mon = bcdtobin(cmd.data[5]); 656 dt->dt_year = bcdtobin(cmd.data[6]) + 2000; 657 658 return 0; 659 } 660 661 static int 662 smu_todr_settime_ymdhms(todr_chip_handle_t tch, struct clock_ymdhms *dt) 663 { 664 struct smu_softc *sc = tch->cookie; 665 struct smu_cmd cmd; 666 667 cmd.cmd = SMU_CMD_RTC; 668 cmd.len = 8; 669 cmd.data[0] = 0x80; 670 cmd.data[1] = bintobcd(dt->dt_sec); 671 cmd.data[2] = bintobcd(dt->dt_min); 672 cmd.data[3] = bintobcd(dt->dt_hour); 673 cmd.data[4] = bintobcd(dt->dt_wday); 674 cmd.data[5] = bintobcd(dt->dt_day); 675 cmd.data[6] = bintobcd(dt->dt_mon); 676 cmd.data[7] = bintobcd(dt->dt_year - 2000); 677 678 return smu_do_cmd(sc, &cmd, 800); 679 } 680 681 static int 682 smu_fan_update_rpm(struct smu_fan *fan) 683 { 684 struct smu_softc *sc = fan->sc; 685 struct smu_cmd cmd; 686 int ret; 687 688 cmd.cmd = SMU_CMD_FAN; 689 cmd.len = 2; 690 cmd.data[0] = 0x31; 691 cmd.data[1] = fan->reg; 692 693 ret = smu_do_cmd(sc, &cmd, 800); 694 if (ret == 0) { 695 fan->last_update = time_uptime; 696 fan->current_rpm = (cmd.data[0] << 8) | cmd.data[1]; 697 } else { 698 cmd.cmd = SMU_CMD_FAN; 699 cmd.len = 1; 700 cmd.data[0] = 0x01; 701 702 ret = smu_do_cmd(sc, &cmd, 800); 703 if (ret == 0) { 704 fan->last_update = time_uptime; 705 fan->current_rpm = (cmd.data[1 + fan->reg * 2] << 8) | 706 cmd.data[2 + fan->reg * 2]; 707 } 708 } 709 710 return ret; 711 } 712 713 static int 714 smu_fan_get_rpm(struct smu_fan *fan, int *rpm) 715 { 716 int ret; 717 ret = 0; 718 719 if (time_uptime - fan->last_update > 1) { 720 ret = smu_fan_update_rpm(fan); 721 if (ret != 0) 722 return ret; 723 } 724 725 *rpm = fan->current_rpm; 726 727 return ret; 728 } 729 730 static int 731 smu_fan_set_rpm(struct smu_fan *fan, int rpm) 732 { 733 struct smu_softc *sc = fan->sc; 734 struct smu_cmd cmd; 735 int ret; 736 737 DPRINTF("%s: fan %s rpm %d\n", __func__, fan->location, rpm); 738 739 rpm = uimax(fan->min_rpm, rpm); 740 rpm = uimin(fan->max_rpm, rpm); 741 742 cmd.cmd = SMU_CMD_FAN; 743 cmd.len = 4; 744 cmd.data[0] = 0x30; 745 cmd.data[1] = fan->reg; 746 cmd.data[2] = (rpm >> 8) & 0xff; 747 cmd.data[3] = rpm & 0xff; 748 749 ret = smu_do_cmd(sc, &cmd, 800); 750 if (ret != 0) { 751 cmd.cmd = SMU_CMD_FAN; 752 cmd.len = 14; 753 cmd.data[0] = fan->rpm_ctl ? 0x00 : 0x10; 754 cmd.data[1] = 1 << fan->reg; 755 cmd.data[2] = cmd.data[2 + fan->reg * 2] = (rpm >> 8) & 0xff; 756 cmd.data[3] = cmd.data[3 + fan->reg * 2] = rpm & 0xff; 757 758 ret = smu_do_cmd(sc, &cmd, 800); 759 } 760 761 return ret; 762 } 763 764 static int 765 smu_iicbus_exec(void *cookie, i2c_op_t op, i2c_addr_t addr, const void *send, 766 size_t send_len, void *recv, size_t recv_len, int flags) 767 { 768 struct smu_iicbus *iicbus = cookie; 769 struct smu_softc *sc = iicbus->sc; 770 struct smu_cmd cmd; 771 int retries, ret; 772 773 DPRINTF("%s: op %x addr %x send_len %d recv_len %d\n", 774 __func__, op, addr, send_len, recv_len); 775 776 cmd.cmd = SMU_CMD_I2C; 777 cmd.len = 9 + recv_len; 778 cmd.data[0] = iicbus->reg; 779 cmd.data[1] = I2C_OP_READ_P(op) ? 0x02 : 0x00; 780 cmd.data[2] = addr << 1; 781 cmd.data[3] = send_len; 782 memcpy(&cmd.data[4], send, send_len); 783 cmd.data[7] = addr << 1; 784 if (I2C_OP_READ_P(op)) 785 cmd.data[7] |= 0x01; 786 cmd.data[8] = recv_len; 787 memcpy(&cmd.data[9], recv, recv_len); 788 789 ret = smu_do_cmd(sc, &cmd, 800); 790 if (ret != 0) 791 return (ret); 792 793 for (retries = 0; retries < 10; retries++) { 794 cmd.cmd = SMU_CMD_I2C; 795 cmd.len = 1; 796 cmd.data[0] = 0x00; 797 memset(&cmd.data[1], 0xff, recv_len); 798 799 ret = smu_do_cmd(sc, &cmd, 800); 800 801 DPRINTF("%s: cmd data[0] %x\n", __func__, cmd.data[0]); 802 803 if (ret == 0 && (cmd.data[0] & 0x80) == 0) 804 break; 805 806 DELAY(10000); 807 } 808 809 if (cmd.data[0] & 0x80) 810 return EIO; 811 812 if (I2C_OP_READ_P(op)) 813 memcpy(recv, &cmd.data[1], recv_len); 814 815 return 0; 816 } 817 818 static int 819 smu_sysctl_fan_rpm(SYSCTLFN_ARGS) 820 { 821 struct sysctlnode node = *rnode; 822 struct smu_fan *fan = node.sysctl_data; 823 int rpm = 0; 824 int ret; 825 826 node.sysctl_data = &rpm; 827 828 if (newp) { 829 if (sysctl_lookup(SYSCTLFN_CALL(&node)) == 0) { 830 rpm = *(int *) node.sysctl_data; 831 return smu_fan_set_rpm(fan, rpm); 832 } 833 return EINVAL; 834 } else { 835 ret = smu_fan_get_rpm(fan, &rpm); 836 if (ret != 0) 837 return (ret); 838 839 return sysctl_lookup(SYSCTLFN_CALL(&node)); 840 } 841 842 return 0; 843 } 844 845 SYSCTL_SETUP(smu_sysctl_setup, "SMU sysctl subtree setup") 846 { 847 sysctl_createv(NULL, 0, NULL, NULL, 848 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", NULL, 849 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL); 850 } 851 852 static void 853 smu_setup_zones(struct smu_softc *sc) 854 { 855 struct smu_zone *z; 856 struct smu_fan *f; 857 int i; 858 859 /* find CPU fans */ 860 z = &sc->sc_zones[SMU_ZONE_CPUS]; 861 z->nfans = 0; 862 for (i = 0; i < SMU_MAX_FANS; i++) { 863 f = &sc->sc_fans[i]; 864 if (strstr(f->location, "CPU") != NULL) { 865 z->fans[z->nfans] = i; 866 z->nfans++; 867 } 868 } 869 printf("using %d fans for CPU zone\n", z->nfans); 870 z->threshold = C_TO_uK(45); 871 z->duty = 150; 872 z->step = 3; 873 z->filter = is_cpu_sensor; 874 875 z = &sc->sc_zones[SMU_ZONE_DRIVES]; 876 z->nfans = 0; 877 for (i = 0; i < SMU_MAX_FANS; i++) { 878 f = &sc->sc_fans[i]; 879 if (strstr(f->location, "DRIVE") != NULL) { 880 z->fans[z->nfans] = i; 881 z->nfans++; 882 } 883 } 884 printf("using %d fans for drive bay zone\n", z->nfans); 885 z->threshold = C_TO_uK(40); 886 z->duty = 150; 887 z->step = 2; 888 z->filter = is_drive_sensor; 889 890 z = &sc->sc_zones[SMU_ZONE_SLOTS]; 891 z->nfans = 0; 892 for (i = 0; i < SMU_MAX_FANS; i++) { 893 f = &sc->sc_fans[i]; 894 if ((strstr(f->location, "BACKSIDE") != NULL) || 895 (strstr(f->location, "SLOTS") != NULL)) { 896 z->fans[z->nfans] = i; 897 z->nfans++; 898 } 899 } 900 printf("using %d fans for expansion slots zone\n", z->nfans); 901 z->threshold = C_TO_uK(40); 902 z->duty = 150; 903 z->step = 2; 904 z->filter = is_slots_sensor; 905 906 sc->sc_dying = false; 907 kthread_create(PRI_NONE, 0, curcpu(), smu_adjust, sc, &sc->sc_thread, 908 "fan control"); 909 } 910 911 static void 912 smu_adjust_zone(struct smu_softc *sc, int which) 913 { 914 struct smu_zone *z = &sc->sc_zones[which]; 915 struct smu_fan *f; 916 long temp, newduty, i, speed, diff; 917 918 DPRINTF("%s %d\n", __func__, which); 919 920 temp = sysmon_envsys_get_max_value(z->filter, true); 921 if (temp == 0) { 922 /* no sensor data - leave fan alone */ 923 DPRINTF("nodata\n"); 924 return; 925 } 926 DPRINTF("temp %ld ", (temp - 273150000) / 1000000); 927 diff = ((temp - z->threshold) / 1000000) * z->step; 928 929 if (diff < 0) newduty = 0; 930 else if (diff > 100) newduty = 100; 931 else newduty = diff; 932 933 DPRINTF("newduty %ld diff %ld \n", newduty, diff); 934 if (newduty == z->duty) { 935 DPRINTF("no change\n"); 936 return; 937 } 938 z->duty = newduty; 939 /* now adjust each fan to the new duty cycle */ 940 for (i = 0; i < z->nfans; i++) { 941 f = &sc->sc_fans[z->fans[i]]; 942 speed = f->min_rpm + ((f->max_rpm - f->min_rpm) * newduty) / 100; 943 DPRINTF("fan %d speed %ld ", z->fans[i], speed); 944 smu_fan_set_rpm(f, speed); 945 } 946 DPRINTF("\n"); 947 } 948 949 static void 950 smu_adjust(void *cookie) 951 { 952 struct smu_softc *sc = cookie; 953 int i; 954 955 while (!sc->sc_dying) { 956 for (i = 0; i < SMU_ZONES; i++) 957 smu_adjust_zone(sc, i); 958 kpause("fanctrl", true, mstohz(30000), NULL); 959 } 960 kthread_exit(0); 961 } 962 963 static bool is_cpu_sensor(const envsys_data_t *edata) 964 { 965 if (edata->units != ENVSYS_STEMP) 966 return false; 967 if ((strstr(edata->desc, "CPU") != NULL) && 968 (strstr(edata->desc, "DIODE") != NULL)) 969 return TRUE; 970 if (strstr(edata->desc, "TUNNEL") != NULL) 971 return TRUE; 972 return false; 973 } 974 975 static bool is_drive_sensor(const envsys_data_t *edata) 976 { 977 if (edata->units != ENVSYS_STEMP) 978 return false; 979 if (strstr(edata->desc, "DRIVE BAY") != NULL) 980 return TRUE; 981 return false; 982 } 983 984 static bool is_slots_sensor(const envsys_data_t *edata) 985 { 986 if (edata->units != ENVSYS_STEMP) 987 return false; 988 if (strstr(edata->desc, "BACKSIDE") != NULL) 989 return TRUE; 990 if (strstr(edata->desc, "INLET") != NULL) 991 return TRUE; 992 return false; 993 } 994 995 int 996 smu_get_datablock(int id, uint8_t *buf, size_t len) 997 { 998 struct smu_cmd cmd; 999 1000 cmd.cmd = SMU_PARTITION; 1001 cmd.len = 2; 1002 cmd.data[0] = SMU_PARTITION_LATEST; 1003 cmd.data[1] = id; 1004 smu_do_cmd(smu0, &cmd, 100); 1005 1006 cmd.data[4] = cmd.data[0]; 1007 cmd.data[5] = cmd.data[1]; 1008 1009 cmd.cmd = SMU_MISC; 1010 cmd.len = 7; 1011 cmd.data[0] = SMU_MISC_GET_DATA; 1012 cmd.data[1] = 4; 1013 cmd.data[2] = 0; 1014 cmd.data[3] = 0; 1015 cmd.data[6] = len; 1016 smu_do_cmd(smu0, &cmd, 100); 1017 1018 memcpy(buf, cmd.data, len); 1019 return 0; 1020 } 1021
Indexes created Wed Sep 24 05:09:52 GMT 2025