adt746x.c revision 263197
1/*- 2 * Copyright (c) 2012 Andreas Tobler 3 * Copyright (c) 2014 Justin Hibbits 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: stable/10/sys/dev/iicbus/adt746x.c 263197 2014-03-15 00:23:35Z jhibbits $"); 30 31#include <sys/param.h> 32#include <sys/bus.h> 33#include <sys/systm.h> 34#include <sys/module.h> 35#include <sys/callout.h> 36#include <sys/conf.h> 37#include <sys/cpu.h> 38#include <sys/ctype.h> 39#include <sys/kernel.h> 40#include <sys/reboot.h> 41#include <sys/rman.h> 42#include <sys/sysctl.h> 43#include <sys/limits.h> 44 45#include <machine/bus.h> 46#include <machine/md_var.h> 47 48#include <dev/iicbus/iicbus.h> 49#include <dev/iicbus/iiconf.h> 50 51#include <dev/ofw/openfirm.h> 52#include <dev/ofw/ofw_bus.h> 53#include <powerpc/powermac/powermac_thermal.h> 54 55/* ADT746X registers. */ 56#define ADT746X_TACH1LOW 0x28 57#define ADT746X_TACH1HIGH 0x29 58#define ADT746X_TACH2LOW 0x2a 59#define ADT746X_TACH2HIGH 0x2b 60#define ADT746X_PWM1 0x30 61#define ADT746X_PWM2 0x31 62#define ADT746X_DEVICE_ID 0x3d 63#define ADT746X_COMPANY_ID 0x3e 64#define ADT746X_REV_ID 0x3f 65#define ADT746X_CONFIG 0x40 66#define ADT746X_PWM1_CONF 0x5c 67#define ADT746X_PWM2_CONF 0x5d 68#define ADT746X_MANUAL_MASK 0xe0 69 70#define ADT7460_DEV_ID 0x27 71#define ADT7467_DEV_ID 0x68 72 73struct adt746x_fan { 74 struct pmac_fan fan; 75 device_t dev; 76 int id; 77 int setpoint; 78 int pwm_reg; 79 int conf_reg; 80}; 81 82struct adt746x_sensor { 83 struct pmac_therm therm; 84 device_t dev; 85 int id; 86 cell_t reg; 87 enum { 88 ADT746X_SENSOR_TEMP, 89 ADT746X_SENSOR_VOLT, 90 ADT746X_SENSOR_SPEED 91 } type; 92}; 93 94struct adt746x_softc { 95 device_t sc_dev; 96 struct intr_config_hook enum_hook; 97 uint32_t sc_addr; 98 /* The 7467 supports up to 4 fans, 2 voltage and 3 temperature sensors. */ 99 struct adt746x_fan sc_fans[4]; 100 int sc_nfans; 101 struct adt746x_sensor sc_sensors[9]; 102 int sc_nsensors; 103 int device_id; 104 105}; 106 107 108/* Regular bus attachment functions */ 109 110static int adt746x_probe(device_t); 111static int adt746x_attach(device_t); 112 113 114/* Utility functions */ 115static void adt746x_attach_fans(device_t dev); 116static void adt746x_attach_sensors(device_t dev); 117static int adt746x_fill_fan_prop(device_t dev); 118static int adt746x_fill_sensor_prop(device_t dev); 119 120static int adt746x_fan_set_pwm(struct adt746x_fan *fan, int pwm); 121static int adt746x_fan_get_pwm(struct adt746x_fan *fan); 122static int adt746x_sensor_read(struct adt746x_sensor *sens); 123static void adt746x_start(void *xdev); 124 125/* i2c read/write functions. */ 126static int adt746x_write(device_t dev, uint32_t addr, uint8_t reg, 127 uint8_t *buf); 128static int adt746x_read(device_t dev, uint32_t addr, uint8_t reg, 129 uint8_t *data); 130 131static device_method_t adt746x_methods[] = { 132 /* Device interface */ 133 DEVMETHOD(device_probe, adt746x_probe), 134 DEVMETHOD(device_attach, adt746x_attach), 135 { 0, 0 }, 136}; 137 138static driver_t adt746x_driver = { 139 "adt746x", 140 adt746x_methods, 141 sizeof(struct adt746x_softc) 142}; 143 144static devclass_t adt746x_devclass; 145 146DRIVER_MODULE(adt746x, iicbus, adt746x_driver, adt746x_devclass, 0, 0); 147static MALLOC_DEFINE(M_ADT746X, "adt746x", "ADT Sensor Information"); 148 149 150/* i2c read/write functions. */ 151 152static int 153adt746x_write(device_t dev, uint32_t addr, uint8_t reg, uint8_t *buff) 154{ 155 uint8_t buf[4]; 156 int try = 0; 157 158 struct iic_msg msg[] = { 159 {addr, IIC_M_WR, 2, buf } 160 }; 161 162 /* Prepare the write msg. */ 163 buf[0] = reg; 164 memcpy(buf + 1, buff, 1); 165 166 for (;;) 167 { 168 if (iicbus_transfer(dev, msg, 1) == 0) 169 return (0); 170 if (++try > 5) { 171 device_printf(dev, "iicbus write failed\n"); 172 return (-1); 173 } 174 pause("adt746x_write", hz); 175 } 176 return (0); 177} 178 179static int 180adt746x_read(device_t dev, uint32_t addr, uint8_t reg, uint8_t *data) 181{ 182 uint8_t buf[4]; 183 int err, try = 0; 184 185 struct iic_msg msg[2] = { 186 {addr, IIC_M_WR | IIC_M_NOSTOP, 1, ®}, 187 {addr, IIC_M_RD, 1, buf}, 188 }; 189 190 for (;;) 191 { 192 err = iicbus_transfer(dev, msg, 2); 193 if (err != 0) 194 goto retry; 195 196 *data = *((uint8_t*)buf); 197 return (0); 198 retry: 199 if (++try > 5) { 200 device_printf(dev, "iicbus read failed\n"); 201 return (-1); 202 } 203 pause("adt746x_read", hz); 204 } 205} 206 207static int 208adt746x_probe(device_t dev) 209{ 210 const char *name, *compatible; 211 struct adt746x_softc *sc; 212 213 name = ofw_bus_get_name(dev); 214 compatible = ofw_bus_get_compat(dev); 215 216 if (!name) 217 return (ENXIO); 218 219 if (strcmp(name, "fan") != 0 || 220 (strcmp(compatible, "adt7460") != 0 && 221 strcmp(compatible, "adt7467") != 0)) 222 return (ENXIO); 223 224 sc = device_get_softc(dev); 225 sc->sc_dev = dev; 226 sc->sc_addr = iicbus_get_addr(dev); 227 228 device_set_desc(dev, "Apple Thermostat Unit ADT746X"); 229 230 return (0); 231} 232 233static int 234adt746x_attach(device_t dev) 235{ 236 struct adt746x_softc *sc; 237 238 sc = device_get_softc(dev); 239 240 sc->enum_hook.ich_func = adt746x_start; 241 sc->enum_hook.ich_arg = dev; 242 243 /* We have to wait until interrupts are enabled. I2C read and write 244 * only works if the interrupts are available. 245 * The unin/i2c is controlled by the htpic on unin. But this is not 246 * the master. The openpic on mac-io is controlling the htpic. 247 * This one gets attached after the mac-io probing and then the 248 * interrupts will be available. 249 */ 250 251 if (config_intrhook_establish(&sc->enum_hook) != 0) 252 return (ENOMEM); 253 254 return (0); 255} 256 257static void 258adt746x_start(void *xdev) 259{ 260 uint8_t did, cid, rev, conf; 261 262 struct adt746x_softc *sc; 263 264 device_t dev = (device_t)xdev; 265 266 sc = device_get_softc(dev); 267 268 adt746x_read(sc->sc_dev, sc->sc_addr, ADT746X_DEVICE_ID, &did); 269 adt746x_read(sc->sc_dev, sc->sc_addr, ADT746X_COMPANY_ID, &cid); 270 adt746x_read(sc->sc_dev, sc->sc_addr, ADT746X_REV_ID, &rev); 271 adt746x_read(sc->sc_dev, sc->sc_addr, ADT746X_CONFIG, &conf); 272 273 device_printf(dev, "Dev ID %#x, Company ID %#x, Rev ID %#x CNF: %#x\n", 274 did, cid, rev, conf); 275 276 /* We can get the device id either from 'of' properties or from the chip 277 itself. This method makes sure we can read the chip, otherwise 278 we return. */ 279 280 sc->device_id = did; 281 282 conf = 1; 283 /* Start the ADT7460. */ 284 if (sc->device_id == ADT7460_DEV_ID) 285 adt746x_write(sc->sc_dev, sc->sc_addr, ADT746X_CONFIG, &conf); 286 287 /* Detect and attach child devices. */ 288 adt746x_attach_fans(dev); 289 adt746x_attach_sensors(dev); 290 config_intrhook_disestablish(&sc->enum_hook); 291} 292 293/* 294 * Sensor and fan management 295 */ 296static int 297adt746x_fan_set_pwm(struct adt746x_fan *fan, int pwm) 298{ 299 uint8_t reg = 0, manual, mode = 0; 300 struct adt746x_softc *sc; 301 uint8_t buf; 302 303 sc = device_get_softc(fan->dev); 304 305 /* Clamp to allowed range */ 306 pwm = max(fan->fan.min_rpm, pwm); 307 pwm = min(fan->fan.max_rpm, pwm); 308 309 reg = fan->pwm_reg; 310 mode = fan->conf_reg; 311 312 /* From the 7460 datasheet: 313 PWM dutycycle can be programmed from 0% (0x00) to 100% (0xFF) 314 in steps of 0.39% (256 steps). 315 */ 316 buf = (pwm * 100 / 39) - (pwm ? 1 : 0); 317 fan->setpoint = buf; 318 319 /* Manual mode. */ 320 adt746x_read(sc->sc_dev, sc->sc_addr, mode, &manual); 321 manual |= ADT746X_MANUAL_MASK; 322 adt746x_write(sc->sc_dev, sc->sc_addr, mode, &manual); 323 324 /* Write speed. */ 325 adt746x_write(sc->sc_dev, sc->sc_addr, reg, &buf); 326 327 return (0); 328} 329 330static int 331adt746x_fan_get_pwm(struct adt746x_fan *fan) 332{ 333 uint8_t buf, reg; 334 uint16_t pwm; 335 struct adt746x_softc *sc; 336 337 sc = device_get_softc(fan->dev); 338 339 reg = fan->pwm_reg; 340 341 adt746x_read(sc->sc_dev, sc->sc_addr, reg, &buf); 342 343 pwm = (buf * 39 / 100) + (buf ? 1 : 0); 344 return (pwm); 345} 346 347static int 348adt746x_fill_fan_prop(device_t dev) 349{ 350 phandle_t child; 351 struct adt746x_softc *sc; 352 u_int *id; 353 char *location; 354 int i, id_len, len = 0, location_len, prev_len = 0; 355 356 sc = device_get_softc(dev); 357 358 child = ofw_bus_get_node(dev); 359 360 /* Fill the fan location property. */ 361 location_len = OF_getprop_alloc(child, "hwctrl-location", 1, (void **)&location); 362 id_len = OF_getprop_alloc(child, "hwctrl-id", sizeof(cell_t), (void **)&id); 363 if (location_len == -1 || id_len == -1) { 364 free(location, M_OFWPROP); 365 free(id, M_OFWPROP); 366 return 0; 367 } 368 369 /* Fill in all the properties for each fan. */ 370 for (i = 0; i < id_len; i++) { 371 strlcpy(sc->sc_fans[i].fan.name, location + len, 32); 372 prev_len = strlen(location + len) + 1; 373 len += prev_len; 374 sc->sc_fans[i].id = id[i]; 375 if (id[i] == 6) { 376 sc->sc_fans[i].pwm_reg = ADT746X_PWM1; 377 sc->sc_fans[i].conf_reg = ADT746X_PWM1_CONF; 378 } else if (id[i] == 7) { 379 sc->sc_fans[i].pwm_reg = ADT746X_PWM2; 380 sc->sc_fans[i].conf_reg = ADT746X_PWM2_CONF; 381 } else { 382 sc->sc_fans[i].pwm_reg = ADT746X_PWM1 + i; 383 sc->sc_fans[i].conf_reg = ADT746X_PWM1_CONF + i; 384 } 385 sc->sc_fans[i].dev = sc->sc_dev; 386 sc->sc_fans[i].fan.min_rpm = 5; /* Percent */ 387 sc->sc_fans[i].fan.max_rpm = 100; 388 sc->sc_fans[i].fan.read = NULL; 389 sc->sc_fans[i].fan.set = 390 (int (*)(struct pmac_fan *, int))(adt746x_fan_set_pwm); 391 sc->sc_fans[i].fan.default_rpm = sc->sc_fans[i].fan.max_rpm; 392 } 393 free(location, M_OFWPROP); 394 free(id, M_OFWPROP); 395 396 return (i); 397} 398 399static int 400adt746x_fill_sensor_prop(device_t dev) 401{ 402 phandle_t child, node; 403 struct adt746x_softc *sc; 404 char sens_type[32]; 405 int i = 0, reg, sensid; 406 407 sc = device_get_softc(dev); 408 409 child = ofw_bus_get_node(dev); 410 411 /* Fill in the sensor properties for each child. */ 412 for (node = OF_child(child); node != 0; node = OF_peer(node)) { 413 if (OF_getprop(node, "sensor-id", &sensid, sizeof(sensid)) == -1) 414 continue; 415 OF_getprop(node, "location", sc->sc_sensors[i].therm.name, 32); 416 OF_getprop(node, "device_type", sens_type, sizeof(sens_type)); 417 if (strcmp(sens_type, "temperature") == 0) 418 sc->sc_sensors[i].type = ADT746X_SENSOR_TEMP; 419 else if (strcmp(sens_type, "voltage") == 0) 420 sc->sc_sensors[i].type = ADT746X_SENSOR_VOLT; 421 else 422 sc->sc_sensors[i].type = ADT746X_SENSOR_SPEED; 423 OF_getprop(node, "reg", ®, sizeof(reg)); 424 OF_getprop(node, "sensor-id", &sensid, 425 sizeof(sensid)); 426 /* This is the i2c register of the sensor. */ 427 sc->sc_sensors[i].reg = reg; 428 sc->sc_sensors[i].id = sensid; 429 OF_getprop(node, "zone", &sc->sc_sensors[i].therm.zone, 430 sizeof(sc->sc_sensors[i].therm.zone)); 431 sc->sc_sensors[i].dev = dev; 432 sc->sc_sensors[i].therm.read = 433 (int (*)(struct pmac_therm *))adt746x_sensor_read; 434 if (sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP) { 435 /* Make up some ranges */ 436 sc->sc_sensors[i].therm.target_temp = 500 + ZERO_C_TO_K; 437 sc->sc_sensors[i].therm.max_temp = 800 + ZERO_C_TO_K; 438 439 pmac_thermal_sensor_register(&sc->sc_sensors[i].therm); 440 } 441 i++; 442 } 443 444 return (i); 445} 446 447static int 448adt746x_fanrpm_sysctl(SYSCTL_HANDLER_ARGS) 449{ 450 device_t adt; 451 struct adt746x_softc *sc; 452 struct adt746x_fan *fan; 453 int pwm = 0, error; 454 455 adt = arg1; 456 sc = device_get_softc(adt); 457 fan = &sc->sc_fans[arg2]; 458 pwm = adt746x_fan_get_pwm(fan); 459 error = sysctl_handle_int(oidp, &pwm, 0, req); 460 461 if (error || !req->newptr) 462 return (error); 463 464 return (adt746x_fan_set_pwm(fan, pwm)); 465} 466 467static void 468adt746x_attach_fans(device_t dev) 469{ 470 struct adt746x_softc *sc; 471 struct sysctl_oid *oid, *fanroot_oid; 472 struct sysctl_ctx_list *ctx; 473 phandle_t child; 474 char sysctl_name[32]; 475 int i, j; 476 477 sc = device_get_softc(dev); 478 479 sc->sc_nfans = 0; 480 481 child = ofw_bus_get_node(dev); 482 483 /* Count the actual number of fans. */ 484 sc->sc_nfans = adt746x_fill_fan_prop(dev); 485 486 device_printf(dev, "%d fans detected!\n", sc->sc_nfans); 487 488 if (sc->sc_nfans == 0) { 489 device_printf(dev, "WARNING: No fans detected!\n"); 490 return; 491 } 492 493 ctx = device_get_sysctl_ctx(dev); 494 fanroot_oid = SYSCTL_ADD_NODE(ctx, 495 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "fans", 496 CTLFLAG_RD, 0, "ADT Fan Information"); 497 498 /* Now we can fill the properties into the allocated struct. */ 499 sc->sc_nfans = adt746x_fill_fan_prop(dev); 500 501 /* Register fans with pmac_thermal */ 502 for (i = 0; i < sc->sc_nfans; i++) 503 pmac_thermal_fan_register(&sc->sc_fans[i].fan); 504 505 /* Add sysctls for the fans. */ 506 for (i = 0; i < sc->sc_nfans; i++) { 507 for (j = 0; j < strlen(sc->sc_fans[i].fan.name); j++) { 508 sysctl_name[j] = tolower(sc->sc_fans[i].fan.name[j]); 509 if (isspace(sysctl_name[j])) 510 sysctl_name[j] = '_'; 511 } 512 sysctl_name[j] = 0; 513 514 sc->sc_fans[i].setpoint = 515 adt746x_fan_get_pwm(&sc->sc_fans[i]); 516 517 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(fanroot_oid), 518 OID_AUTO, sysctl_name, CTLFLAG_RD, 0, "Fan Information"); 519 520 /* I use i to pass the fan id. */ 521 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 522 "pwm", CTLTYPE_INT | CTLFLAG_RW, dev, i, 523 adt746x_fanrpm_sysctl, "I", "Fan PWM in %"); 524 } 525 526 /* Dump fan location & type. */ 527 if (bootverbose) { 528 for (i = 0; i < sc->sc_nfans; i++) { 529 device_printf(dev, "Fan location: %s", 530 sc->sc_fans[i].fan.name); 531 device_printf(dev, " id: %d RPM: %d\n", 532 sc->sc_fans[i].id, 533 sc->sc_fans[i].setpoint); 534 } 535 } 536} 537 538static int 539adt746x_sensor_read(struct adt746x_sensor *sens) 540{ 541 struct adt746x_softc *sc; 542 uint16_t tmp = 0; 543 uint16_t val; 544 uint8_t temp, data[1], data1[1]; 545 546 sc = device_get_softc(sens->dev); 547 if (sens->type != ADT746X_SENSOR_SPEED) { 548 if (adt746x_read(sc->sc_dev, sc->sc_addr, sens->reg, 549 &temp) < 0) 550 return (-1); 551 if (sens->type == ADT746X_SENSOR_TEMP) 552 tmp = 10 * temp + ZERO_C_TO_K; 553 else 554 tmp = temp; 555 } else { 556 if (adt746x_read(sc->sc_dev, sc->sc_addr, sens->reg, 557 data) < 0) 558 return (-1); 559 if (adt746x_read(sc->sc_dev, sc->sc_addr, sens->reg + 1, 560 data1) < 0) 561 return (-1); 562 val = data[0] + (data1[0] << 8); 563 /* A value of 0xffff means the fan is stopped. */ 564 if (val == 0 || val == 0xffff) 565 tmp = 0; 566 else 567 tmp = (90000 * 60) / val; 568 } 569 return (tmp); 570} 571 572static int 573adt746x_sensor_sysctl(SYSCTL_HANDLER_ARGS) 574{ 575 device_t dev; 576 struct adt746x_softc *sc; 577 struct adt746x_sensor *sens; 578 int value, error; 579 580 dev = arg1; 581 sc = device_get_softc(dev); 582 sens = &sc->sc_sensors[arg2]; 583 584 value = sens->therm.read(&sens->therm); 585 if (value < 0) 586 return (ENXIO); 587 588 error = sysctl_handle_int(oidp, &value, 0, req); 589 590 return (error); 591} 592 593static void 594adt746x_attach_sensors(device_t dev) 595{ 596 struct adt746x_softc *sc; 597 struct sysctl_oid *oid, *sensroot_oid; 598 struct sysctl_ctx_list *ctx; 599 phandle_t child; 600 char sysctl_name[40]; 601 const char *unit; 602 const char *desc; 603 int i, j; 604 605 606 sc = device_get_softc(dev); 607 sc->sc_nsensors = 0; 608 child = ofw_bus_get_node(dev); 609 610 /* Count the actual number of sensors. */ 611 sc->sc_nsensors = adt746x_fill_sensor_prop(dev); 612 device_printf(dev, "%d sensors detected!\n", sc->sc_nsensors); 613 if (sc->sc_nsensors == 0) { 614 device_printf(dev, "WARNING: No sensors detected!\n"); 615 return; 616 } 617 618 ctx = device_get_sysctl_ctx(dev); 619 sensroot_oid = SYSCTL_ADD_NODE(ctx, 620 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "sensors", 621 CTLFLAG_RD, 0, "ADT Sensor Information"); 622 623 /* Add the sysctl for the sensors. */ 624 for (i = 0; i < sc->sc_nsensors; i++) { 625 for (j = 0; j < strlen(sc->sc_sensors[i].therm.name); j++) { 626 sysctl_name[j] = tolower(sc->sc_sensors[i].therm.name[j]); 627 if (isspace(sysctl_name[j])) 628 sysctl_name[j] = '_'; 629 } 630 sysctl_name[j] = 0; 631 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(sensroot_oid), 632 OID_AUTO, 633 sysctl_name, CTLFLAG_RD, 0, 634 "Sensor Information"); 635 if (sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP) { 636 unit = "temp"; 637 desc = "sensor unit (C)"; 638 } else if (sc->sc_sensors[i].type == ADT746X_SENSOR_VOLT) { 639 unit = "volt"; 640 desc = "sensor unit (mV)"; 641 } else { 642 unit = "rpm"; 643 desc = "sensor unit (RPM)"; 644 } 645 /* I use i to pass the sensor id. */ 646 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 647 unit, CTLTYPE_INT | CTLFLAG_RD, dev, i, 648 adt746x_sensor_sysctl, 649 sc->sc_sensors[i].type == ADT746X_SENSOR_TEMP ? 650 "IK" : "I", desc); 651 } 652 653 /* Dump sensor location & type. */ 654 if (bootverbose) { 655 for (i = 0; i < sc->sc_nsensors; i++) { 656 device_printf(dev, "Sensor location: %s", 657 sc->sc_sensors[i].therm.name); 658 device_printf(dev, " type: %d id: %d reg: 0x%x\n", 659 sc->sc_sensors[i].type, 660 sc->sc_sensors[i].id, 661 sc->sc_sensors[i].reg); 662 } 663 } 664} 665