adm1021.c revision 1.29.6.1
1 /* $NetBSD: adm1021.c,v 1.29.6.1 2021/09/10 15:45:28 thorpej Exp $ */ 2 /* $OpenBSD: adm1021.c,v 1.27 2007/06/24 05:34:35 dlg Exp $ */ 3 4 /* 5 * Copyright (c) 2005 Theo de Raadt 6 * 7 * Permission to use, copy, modify, and distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /* 21 * Driver for ADM1021 and compatible temperature sensors, including ADM1021, 22 * ADM1021A, ADM1023, ADM1032, GL523SM, G781, LM84, MAX1617, MAX1617A, 23 * NE1617A, MAX6642 and Xeon embedded temperature sensors. 24 * 25 * Some sensors differ from the ADM1021/MAX1617/NE1617A: 26 * ADM1021A ADM1023 ADM1032 G781 LM84 MAX1617A MAX6642 27 * company/revision reg X X X X X X 28 * no negative temps X X X X 29 * 11-bit remote temp X X X X 30 * no low limits X X 31 * therm (high) limits X X X 32 * 33 * Registers 0x00 to 0x0f have separate read/write addresses, but 34 * registers 0x10 and above have the same read/write address. 35 * The 11-bit (extended) temperature consists of a separate register with 36 * 3 valid bits that are always added to the external temperature (even if 37 * the temperature is negative). 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: adm1021.c,v 1.29.6.1 2021/09/10 15:45:28 thorpej Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/device.h> 46 #include <dev/sysmon/sysmonvar.h> 47 48 #include <dev/i2c/i2cvar.h> 49 50 /* Registers */ 51 #define ADM1021_INT_TEMP 0x00 /* Internal temperature value */ 52 #define ADM1021_EXT_TEMP 0x01 /* External temperature value */ 53 #define ADM1021_STATUS 0x02 /* Status */ 54 #define ADM1021_CONFIG_READ 0x03 /* Read configuration */ 55 #define ADM1021_CONV_RATE_READ 0x04 /* Read conversion rate */ 56 #define ADM1021_INT_HIGH_READ 0x05 /* Read internal high limit */ 57 #define ADM1021_INT_LOW_READ 0x06 /* Read internal low limit */ 58 #define ADM1021_EXT_HIGH_READ 0x07 /* Read external high limit */ 59 #define ADM1021_EXT_LOW_READ 0x08 /* Read external low limit */ 60 #define ADM1021_CONFIG_WRITE 0x09 /* Write configuration */ 61 #define ADM1021_CONV_RATE_WRITE 0x0a /* Write conversion rate */ 62 #define ADM1021_INT_HIGH_WRITE 0x0b /* Write internal high limit */ 63 #define ADM1021_INT_LOW_WRITE 0x0c /* Write internal low limit */ 64 #define ADM1021_EXT_HIGH_WRITE 0x0d /* Write external high limit */ 65 #define ADM1021_EXT_LOW_WRITE 0x0e /* Write external low limit */ 66 #define ADM1021_ONE_SHOT 0x0f /* One shot command */ 67 #define ADM1023_EXT_TEMP2 0x10 /* R/W external temp low byte */ 68 #define ADM1023_EXT_TEMP_OFF 0x11 /* R/W external temp offset */ 69 #define ADM1023_EXT_TEMP_OFF2 0x12 /* R/W external temp off low byte */ 70 #define ADM1023_EXT_HIGH2 0x13 /* R/W external high lim low byte */ 71 #define ADM1023_EXT_LOW2 0x14 /* R/W external low lim low byte */ 72 #define ADM1032_EXT_THERM 0x19 /* R/W external Therm (high) limit */ 73 #define ADM1032_INT_THERM 0x20 /* R/W internal Therm (high) limit */ 74 #define ADM1032_THERM_HYST 0x21 /* R/W Therm hysteris */ 75 #define ADM1032_ALERT_QUEUE 0x22 /* R/W consecutive alert queue */ 76 #define ADM1021_COMPANY 0xfe /* Company ID */ 77 #define ADM1021_DIE_REVISION 0xff /* Die revision code */ 78 79 /* Register values */ 80 #define ADM1021_CONFIG_RUN 0x40 81 82 #define ADM1021_STATUS_INVAL 0x7f 83 #define ADM1021_STATUS_NOEXT 0x40 /* External diode is open-circuit */ 84 85 #define ADM1023_EXT2_SHIFT 5 86 #define ADM1023_EXT2_MASK 0x07 87 88 #define ADM1021_COMPANY_ADM 0x41 /* 'A' */ 89 #define ADM1021_COMPANY_GMT 0x47 /* 'G' */ 90 #define ADM1021_COMPANY_MAXIM 0x4d /* 'M' */ 91 92 #define ADM1021_REV_1021 0x00 93 #define ADM1021_REV_1021A 0x30 94 #define ADM1021_REV_MASK 0xf0 95 96 /* Sensors */ 97 #define ADMTEMP_INT 0 98 #define ADMTEMP_EXT 1 99 #define ADMTEMP_NUM_SENSORS 2 100 101 #define ADMTEMP_MAX_NEG -65 102 #define ADMTEMP_MAX_POS 127 103 #define ADMTEMP_LOW_DEFAULT 0xc9 /* (-55) */ 104 105 /* Limit registers might read 0xff, so we ignore them if they do */ 106 #define ADMTEMP_LIM_INVAL -1 /* 0xff */ 107 108 #define ADMTEMP_NAMELEN 9 /* Maximum name length + 1 */ 109 110 struct admtemp_softc { 111 i2c_tag_t sc_tag; 112 i2c_addr_t sc_addr; 113 prop_dictionary_t sc_prop; 114 115 int sc_flags; 116 int sc_noexternal, sc_noneg, sc_nolow; 117 int sc_ext11, sc_therm; 118 struct sysmon_envsys *sc_sme; 119 envsys_data_t sc_sensor[ADMTEMP_NUM_SENSORS]; 120 int sc_setdef[ADMTEMP_NUM_SENSORS]; 121 uint8_t sc_highlim[ADMTEMP_NUM_SENSORS]; 122 uint8_t sc_lowlim[ADMTEMP_NUM_SENSORS]; 123 uint8_t sc_highlim2, sc_lowlim2; 124 uint8_t sc_thermlim[ADMTEMP_NUM_SENSORS]; 125 }; 126 127 int admtemp_match(device_t, cfdata_t, void *); 128 void admtemp_attach(device_t, device_t, void *); 129 void admtemp_refresh(struct sysmon_envsys *, envsys_data_t *); 130 void admtemp_getlim_1021(struct sysmon_envsys *, envsys_data_t *, 131 sysmon_envsys_lim_t *, uint32_t *); 132 void admtemp_getlim_1023(struct sysmon_envsys *, envsys_data_t *, 133 sysmon_envsys_lim_t *, uint32_t *); 134 void admtemp_getlim_1032(struct sysmon_envsys *, envsys_data_t *, 135 sysmon_envsys_lim_t *, uint32_t *); 136 void admtemp_setlim_1021(struct sysmon_envsys *, envsys_data_t *, 137 sysmon_envsys_lim_t *, uint32_t *); 138 void admtemp_setlim_1023(struct sysmon_envsys *, envsys_data_t *, 139 sysmon_envsys_lim_t *, uint32_t *); 140 void admtemp_setlim_1032(struct sysmon_envsys *, envsys_data_t *, 141 sysmon_envsys_lim_t *, uint32_t *); 142 143 CFATTACH_DECL_NEW(admtemp, sizeof(struct admtemp_softc), 144 admtemp_match, admtemp_attach, NULL, NULL); 145 146 struct admtemp_params { 147 const char *name; 148 int noneg; 149 int nolow; 150 int ext11; 151 int therm; 152 }; 153 154 static const struct admtemp_params admtemp_params_max1617 = { 155 .name = "MAX1617A", 156 .noneg = 0, 157 .nolow = 0, 158 .ext11 = 0, 159 .therm = 0, 160 }; 161 162 static const struct admtemp_params admtemp_params_max6642 = { 163 .name = "MAX6642", 164 .noneg = 0, 165 .nolow = 1, 166 .ext11 = 0, 167 .therm = 0, 168 }; 169 170 static const struct admtemp_params admtemp_params_max6690 = { 171 .name = "MAX6690", 172 .noneg = 0, 173 .nolow = 0, 174 .ext11 = 1, 175 .therm = 0, 176 }; 177 178 static const struct device_compatible_entry compat_data[] = { 179 { .compat = "i2c-max1617", .data = &admtemp_params_max1617 }, 180 { .compat = "max6642", .data = &admtemp_params_max6642 }, 181 { .compat = "max6690", .data = &admtemp_params_max6690 }, 182 DEVICE_COMPAT_EOL 183 }; 184 185 int 186 admtemp_match(device_t parent, cfdata_t match, void *aux) 187 { 188 struct i2c_attach_args *ia = aux; 189 int match_result; 190 191 if (iic_use_direct_match(ia, match, compat_data, &match_result)) 192 return match_result; 193 194 /* 195 * Indirect config - not much we can do! 196 * Check typical addresses. 197 */ 198 if (((ia->ia_addr >= 0x18) && (ia->ia_addr <= 0x1a)) || 199 ((ia->ia_addr >= 0x29) && (ia->ia_addr <= 0x2b)) || 200 ((ia->ia_addr >= 0x48) && (ia->ia_addr <= 0x4e))) 201 return I2C_MATCH_ADDRESS_ONLY; 202 203 return 0; 204 } 205 206 static int 207 admtemp_exec(struct admtemp_softc *sc, i2c_op_t op, uint8_t *cmd, 208 uint8_t *data) 209 { 210 return iic_exec(sc->sc_tag, op, sc->sc_addr, cmd, sizeof(*cmd), data, 211 sizeof(*data), 0); 212 } 213 214 /* 215 * Set flags based on chip type for direct config, or by testing for 216 * indirect config. 217 * 218 * LM84, MAX1617, and NE1617A don't have company/revision registers. 219 * If we can't read the company register, we'll check the 220 * internal low limit to see if we have an LM84. 221 * 222 * To check if an ADM chip has 11-bit sensors, we'll write 0.125 223 * to the external temperature limit low byte register and read it 224 * back (because we can't tell from the id/rev). 225 * 226 * To check if an ADM chip has a Therm output, we check that we 227 * read 0x55 (default value) from the external therm limit. 228 * 229 * If an ADM chip doesn't have 11-bit sensors, check the revision to 230 * determine if it handles negative temperatures. 231 */ 232 static void 233 admtemp_setflags(struct admtemp_softc *sc, struct i2c_attach_args *ia, 234 uint8_t* comp, uint8_t *rev, char* name) 235 { 236 uint8_t cmd, data, tmp; 237 238 *comp = 0; 239 *rev = 0; 240 241 cmd = ADM1021_COMPANY; 242 admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, comp); 243 244 cmd = ADM1021_DIE_REVISION; 245 admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, rev); 246 247 sc->sc_noneg = 1; 248 sc->sc_nolow = 0; 249 sc->sc_ext11 = 0; 250 sc->sc_therm = 0; 251 252 /* Direct config */ 253 const struct device_compatible_entry *dce = 254 iic_compatible_lookup(ia, compat_data); 255 if (dce != NULL) { 256 const struct admtemp_params *params = dce->data; 257 258 sc->sc_noneg = params->noneg; 259 sc->sc_nolow = params->nolow; 260 sc->sc_ext11 = params->ext11; 261 sc->sc_therm = params->therm; 262 strlcpy(name, params->name, ADMTEMP_NAMELEN); 263 return; 264 } 265 266 /* Indirect config */ 267 if (*comp == 0) { 268 sc->sc_noneg = 0; 269 cmd = ADM1021_INT_LOW_READ; 270 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, comp) == 0 && 271 *comp != ADMTEMP_LOW_DEFAULT) { 272 sc->sc_nolow = 1; 273 strlcpy(name, "LM84", ADMTEMP_NAMELEN); 274 } else 275 strlcpy(name, "MAX1617", ADMTEMP_NAMELEN); 276 } 277 278 if (*comp == ADM1021_COMPANY_MAXIM) { 279 sc->sc_noneg = 0; 280 /* 281 * MAX6642 doesn't have a revision register 282 * XXX this works only on macppc with iic at pmu because the 283 * pmu doesn't return an error for nonexistant registers, it 284 * just repeats previous data 285 */ 286 if (*comp == *rev) { 287 sc->sc_therm = 0; /* */ 288 sc->sc_nolow = 1; 289 strlcpy(name, "MAX6642", ADMTEMP_NAMELEN); 290 } else if (*rev == 0) { 291 strlcpy(name, "MAX6690", ADMTEMP_NAMELEN); 292 sc->sc_ext11 = 1; 293 } else { 294 strlcpy(name, "MAX1617A", ADMTEMP_NAMELEN); 295 } 296 } 297 298 if (*comp == ADM1021_COMPANY_GMT) { 299 sc->sc_ext11 = 1; 300 sc->sc_therm = 1; 301 strlcpy(name, "G781", ADMTEMP_NAMELEN); 302 } 303 304 if (*comp == ADM1021_COMPANY_ADM) { 305 cmd = ADM1023_EXT_HIGH2; 306 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &data) == 0) { 307 tmp = 1 << ADM1023_EXT2_SHIFT; 308 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &tmp); 309 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, 310 &tmp) == 0 && tmp == 1 << ADM1023_EXT2_SHIFT) { 311 sc->sc_ext11 = 1; 312 strlcpy(name, "ADM1023", ADMTEMP_NAMELEN); 313 } 314 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &data); 315 } 316 cmd = ADM1032_EXT_THERM; 317 if (sc->sc_ext11 && 318 admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &data) == 0 319 && data == 0x55) { 320 sc->sc_therm = 1; 321 strlcpy(name, "ADM1032", ADMTEMP_NAMELEN); 322 } 323 if (!sc->sc_ext11 && 324 (*rev & ADM1021_REV_MASK) == ADM1021_REV_1021A) { 325 sc->sc_noneg = 0; 326 strlcpy(name, "ADM1021A", ADMTEMP_NAMELEN); 327 } else 328 strlcpy(name, "ADM1021", ADMTEMP_NAMELEN); 329 } 330 } 331 332 void 333 admtemp_attach(device_t parent, device_t self, void *aux) 334 { 335 struct admtemp_softc *sc = device_private(self); 336 struct i2c_attach_args *ia = aux; 337 uint8_t cmd, data, stat, comp, rev; 338 char name[ADMTEMP_NAMELEN]; 339 char ename[64] = "external", iname[64] = "internal"; 340 const char *desc; 341 342 sc->sc_tag = ia->ia_tag; 343 sc->sc_addr = ia->ia_addr; 344 345 /* XXX XXX XXX */ 346 if ((sc->sc_prop = ia->ia_prop) != NULL) { 347 prop_object_retain(sc->sc_prop); 348 } 349 350 if (iic_acquire_bus(sc->sc_tag, 0)) { 351 aprint_error_dev(self, "cannot acquire iic bus\n"); 352 return; 353 } 354 355 cmd = ADM1021_CONFIG_READ; 356 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &data) != 0) { 357 iic_release_bus(sc->sc_tag, 0); 358 aprint_error_dev(self, "cannot get control register\n"); 359 return; 360 } 361 if (data & ADM1021_CONFIG_RUN) { 362 cmd = ADM1021_STATUS; 363 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &stat)) { 364 iic_release_bus(sc->sc_tag, 0); 365 aprint_error_dev(self, 366 "cannot read status register\n"); 367 return; 368 } 369 if ((stat & ADM1021_STATUS_INVAL) == ADM1021_STATUS_INVAL) { 370 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, 371 &stat)) { 372 iic_release_bus(sc->sc_tag, 0); 373 aprint_error_dev(self, 374 "cannot read status register\n"); 375 return; 376 } 377 } 378 379 /* means external is dead */ 380 if ((stat & ADM1021_STATUS_INVAL) != ADM1021_STATUS_INVAL && 381 (stat & ADM1021_STATUS_NOEXT)) 382 sc->sc_noexternal = 1; 383 384 data &= ~ADM1021_CONFIG_RUN; 385 cmd = ADM1021_CONFIG_WRITE; 386 if (admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &data)) { 387 iic_release_bus(sc->sc_tag, 0); 388 aprint_error_dev(self, 389 "cannot set control register\n"); 390 return; 391 } 392 } 393 394 admtemp_setflags(sc, ia, &comp, &rev, name); 395 396 iic_release_bus(sc->sc_tag, 0); 397 398 aprint_normal(": %s temperature sensor", name); 399 if (comp) 400 aprint_normal(": id. 0x%02x, rev. 0x%02x\n", comp, rev); 401 else 402 aprint_normal("\n"); 403 aprint_naive(": Temperature sensor\n"); 404 405 /* Initialize sensor data. */ 406 sc->sc_sensor[ADMTEMP_INT].state = ENVSYS_SINVALID; 407 sc->sc_sensor[ADMTEMP_INT].units = ENVSYS_STEMP; 408 sc->sc_sensor[ADMTEMP_EXT].state = ENVSYS_SINVALID; 409 sc->sc_sensor[ADMTEMP_EXT].units = ENVSYS_STEMP; 410 sc->sc_sensor[ADMTEMP_INT].flags = 411 ENVSYS_FMONLIMITS | ENVSYS_FHAS_ENTROPY; 412 sc->sc_sensor[ADMTEMP_EXT].flags = 413 ENVSYS_FMONLIMITS | ENVSYS_FHAS_ENTROPY; 414 415 if (prop_dictionary_get_string(sc->sc_prop, "s00", &desc)) { 416 strncpy(iname, desc, 64); 417 } 418 419 if (prop_dictionary_get_string(sc->sc_prop, "s01", &desc)) { 420 strncpy(ename, desc, 64); 421 } 422 423 strlcpy(sc->sc_sensor[ADMTEMP_INT].desc, iname, 424 sizeof(sc->sc_sensor[ADMTEMP_INT].desc)); 425 strlcpy(sc->sc_sensor[ADMTEMP_EXT].desc, ename, 426 sizeof(sc->sc_sensor[ADMTEMP_EXT].desc)); 427 428 sc->sc_sme = sysmon_envsys_create(); 429 if (sysmon_envsys_sensor_attach( 430 sc->sc_sme, &sc->sc_sensor[ADMTEMP_INT])) { 431 sysmon_envsys_destroy(sc->sc_sme); 432 sc->sc_sme = NULL; 433 aprint_error_dev(self, 434 "unable to attach internal at sysmon\n"); 435 return; 436 } 437 if (sc->sc_noexternal == 0 && 438 sysmon_envsys_sensor_attach( 439 sc->sc_sme, &sc->sc_sensor[ADMTEMP_EXT])) { 440 sysmon_envsys_destroy(sc->sc_sme); 441 sc->sc_sme = NULL; 442 aprint_error_dev(self, 443 "unable to attach external at sysmon\n"); 444 return; 445 } 446 sc->sc_sme->sme_name = device_xname(self); 447 sc->sc_sme->sme_cookie = sc; 448 sc->sc_sme->sme_refresh = admtemp_refresh; 449 if (sc->sc_therm) { 450 sc->sc_sme->sme_get_limits = admtemp_getlim_1032; 451 sc->sc_sme->sme_set_limits = admtemp_setlim_1032; 452 } else if (sc->sc_ext11) { 453 sc->sc_sme->sme_get_limits = admtemp_getlim_1023; 454 sc->sc_sme->sme_set_limits = admtemp_setlim_1023; 455 } else { 456 sc->sc_sme->sme_get_limits = admtemp_getlim_1021; 457 sc->sc_sme->sme_set_limits = admtemp_setlim_1021; 458 } 459 if (sysmon_envsys_register(sc->sc_sme)) { 460 aprint_error_dev(self, 461 "unable to register with sysmon\n"); 462 sysmon_envsys_destroy(sc->sc_sme); 463 sc->sc_sme = NULL; 464 return; 465 } 466 } 467 468 469 void 470 admtemp_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 471 { 472 struct admtemp_softc *sc = sme->sme_cookie; 473 uint8_t cmd, xdata; 474 int8_t sdata; 475 476 if (iic_acquire_bus(sc->sc_tag, 0) != 0) 477 return; 478 479 if (edata->sensor == ADMTEMP_INT) 480 cmd = ADM1021_INT_TEMP; 481 else 482 cmd = ADM1021_EXT_TEMP; 483 484 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &sdata) == 0) { 485 if (sdata == ADM1021_STATUS_INVAL) { 486 edata->state = ENVSYS_SINVALID; 487 } else { 488 edata->value_cur = 273150000 + 1000000 * sdata; 489 edata->state = ENVSYS_SVALID; 490 } 491 } 492 if (edata->sensor == ADMTEMP_EXT && sc->sc_ext11) { 493 cmd = ADM1023_EXT_TEMP2; 494 admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &xdata); 495 edata->value_cur += 496 (xdata >> ADM1023_EXT2_SHIFT & ADM1023_EXT2_MASK) * 125000; 497 } 498 499 iic_release_bus(sc->sc_tag, 0); 500 } 501 502 void 503 admtemp_getlim_1021(struct sysmon_envsys *sme, envsys_data_t *edata, 504 sysmon_envsys_lim_t *limits, uint32_t *props) 505 { 506 struct admtemp_softc *sc = sme->sme_cookie; 507 uint8_t cmd; 508 int8_t hdata = 0x7f, ldata = 0xc9; 509 510 *props &= ~(PROP_CRITMAX | PROP_CRITMIN); 511 512 if (iic_acquire_bus(sc->sc_tag, 0)) 513 return; 514 515 if (edata->sensor == ADMTEMP_INT) 516 cmd = ADM1021_INT_HIGH_READ; 517 else 518 cmd = ADM1021_EXT_HIGH_READ; 519 520 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &hdata) == 0 && 521 hdata != ADMTEMP_LIM_INVAL) { 522 limits->sel_critmax = 273150000 + 1000000 * hdata; 523 *props |= PROP_CRITMAX; 524 } 525 526 if (sc->sc_nolow == 1) { 527 goto release; 528 } 529 530 if (edata->sensor == ADMTEMP_INT) 531 cmd = ADM1021_INT_LOW_READ; 532 else 533 cmd = ADM1021_EXT_LOW_READ; 534 535 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &ldata) == 0 && 536 ldata != ADMTEMP_LIM_INVAL) { 537 limits->sel_critmin = 273150000 + 1000000 * ldata; 538 *props |= PROP_CRITMIN; 539 } 540 541 release: 542 iic_release_bus(sc->sc_tag, 0); 543 544 /* Save the values if this is the first time through. */ 545 if (sc->sc_setdef[edata->sensor] == 0) { 546 sc->sc_setdef[edata->sensor] = 1; 547 sc->sc_highlim[edata->sensor] = hdata; 548 sc->sc_lowlim[edata->sensor] = ldata; 549 } 550 } 551 552 void 553 admtemp_getlim_1023(struct sysmon_envsys *sme, envsys_data_t *edata, 554 sysmon_envsys_lim_t *limits, uint32_t *props) 555 { 556 struct admtemp_softc *sc = sme->sme_cookie; 557 uint8_t cmd, xhdata = 0, xldata = 0; 558 int8_t hdata = 0x7f, ldata = 0xc9; 559 560 *props &= ~(PROP_CRITMAX | PROP_CRITMIN); 561 562 if (iic_acquire_bus(sc->sc_tag, 0)) 563 return; 564 565 if (edata->sensor == ADMTEMP_INT) 566 cmd = ADM1021_INT_HIGH_READ; 567 else 568 cmd = ADM1021_EXT_HIGH_READ; 569 570 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &hdata) == 0 && 571 hdata != ADMTEMP_LIM_INVAL) { 572 limits->sel_critmax = 273150000 + 1000000 * hdata; 573 *props |= PROP_CRITMAX; 574 } 575 576 if (edata->sensor == ADMTEMP_EXT) { 577 cmd = ADM1023_EXT_HIGH2; 578 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &xhdata) == 0) 579 limits->sel_critmax += 580 (xhdata >> ADM1023_EXT2_SHIFT & ADM1023_EXT2_MASK) 581 * 125000; 582 } 583 584 if (edata->sensor == ADMTEMP_INT) 585 cmd = ADM1021_INT_LOW_READ; 586 else 587 cmd = ADM1021_EXT_LOW_READ; 588 589 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &ldata) == 0 && 590 ldata != ADMTEMP_LIM_INVAL) { 591 limits->sel_critmin = 273150000 + 1000000 * ldata; 592 *props |= PROP_CRITMIN; 593 } 594 595 if (edata->sensor == ADMTEMP_EXT) { 596 cmd = ADM1023_EXT_LOW2; 597 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &xldata) == 0) 598 limits->sel_critmin += 599 (xldata >> ADM1023_EXT2_SHIFT & ADM1023_EXT2_MASK) 600 * 125000; 601 } 602 603 iic_release_bus(sc->sc_tag, 0); 604 605 /* Save the values if this is the first time through. */ 606 if (sc->sc_setdef[edata->sensor] == 0) { 607 sc->sc_setdef[edata->sensor] = 1; 608 sc->sc_highlim[edata->sensor] = hdata; 609 sc->sc_lowlim[edata->sensor] = ldata; 610 if (edata->sensor == ADMTEMP_EXT) { 611 sc->sc_highlim2 = xhdata; 612 sc->sc_lowlim2 = xldata; 613 } 614 } 615 } 616 617 void 618 admtemp_getlim_1032(struct sysmon_envsys *sme, envsys_data_t *edata, 619 sysmon_envsys_lim_t *limits, uint32_t *props) 620 { 621 struct admtemp_softc *sc = sme->sme_cookie; 622 uint8_t cmd, xhdata = 0, xldata = 0; 623 int8_t tdata = 0x55, hdata = 0x55, ldata = 0; 624 625 *props &= ~(PROP_WARNMAX | PROP_CRITMAX | PROP_WARNMIN); 626 627 if (iic_acquire_bus(sc->sc_tag, 0)) 628 return; 629 630 if (edata->sensor == ADMTEMP_INT) 631 cmd = ADM1032_INT_THERM; 632 else 633 cmd = ADM1032_EXT_THERM; 634 635 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &tdata) == 0 && 636 tdata != ADMTEMP_LIM_INVAL) { 637 limits->sel_critmax = 273150000 + 1000000 * tdata; 638 *props |= PROP_CRITMAX; 639 } 640 641 if (edata->sensor == ADMTEMP_INT) 642 cmd = ADM1021_INT_HIGH_READ; 643 else 644 cmd = ADM1021_EXT_HIGH_READ; 645 646 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &hdata) == 0 && 647 hdata != ADMTEMP_LIM_INVAL) { 648 limits->sel_warnmax = 273150000 + 1000000 * hdata; 649 *props |= PROP_WARNMAX; 650 } 651 652 if (edata->sensor == ADMTEMP_EXT) { 653 cmd = ADM1023_EXT_HIGH2; 654 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &xhdata) == 0) 655 limits->sel_warnmax += 656 (xhdata >> ADM1023_EXT2_SHIFT & ADM1023_EXT2_MASK) 657 * 125000; 658 } 659 660 if (edata->sensor == ADMTEMP_INT) 661 cmd = ADM1021_INT_LOW_READ; 662 else 663 cmd = ADM1021_EXT_LOW_READ; 664 665 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &ldata) == 0 && 666 ldata != ADMTEMP_LIM_INVAL) { 667 limits->sel_warnmin = 273150000 + 1000000 * ldata; 668 *props |= PROP_WARNMIN; 669 } 670 671 if (edata->sensor == ADMTEMP_EXT) { 672 cmd = ADM1023_EXT_LOW2; 673 if (admtemp_exec(sc, I2C_OP_READ_WITH_STOP, &cmd, &xldata) == 0) 674 limits->sel_warnmin += 675 (xldata >> ADM1023_EXT2_SHIFT & ADM1023_EXT2_MASK) 676 * 125000; 677 } 678 679 iic_release_bus(sc->sc_tag, 0); 680 681 /* Save the values if this is the first time through. */ 682 if (sc->sc_setdef[edata->sensor] == 0) { 683 sc->sc_setdef[edata->sensor] = 1; 684 sc->sc_thermlim[edata->sensor] = tdata; 685 sc->sc_highlim[edata->sensor] = hdata; 686 sc->sc_lowlim[edata->sensor] = ldata; 687 if (edata->sensor == ADMTEMP_EXT) { 688 sc->sc_highlim2 = xhdata; 689 sc->sc_lowlim2 = xldata; 690 } 691 } 692 } 693 694 void 695 admtemp_setlim_1021(struct sysmon_envsys *sme, envsys_data_t *edata, 696 sysmon_envsys_lim_t *limits, uint32_t *props) 697 { 698 struct admtemp_softc *sc = sme->sme_cookie; 699 uint8_t cmd; 700 int tmp; 701 int8_t sdata; 702 703 if (iic_acquire_bus(sc->sc_tag, 0)) 704 return; 705 706 if (*props & PROP_CRITMAX) { 707 if (edata->sensor == ADMTEMP_INT) 708 cmd = ADM1021_INT_HIGH_WRITE; 709 else 710 cmd = ADM1021_EXT_HIGH_WRITE; 711 712 if (limits == NULL) /* Restore defaults */ 713 sdata = sc->sc_highlim[edata->sensor]; 714 else { 715 tmp = (limits->sel_critmax - 273150000) / 1000000; 716 if (tmp > ADMTEMP_MAX_POS) 717 sdata = ADMTEMP_MAX_POS; 718 else if (tmp < 0 && sc->sc_noneg) 719 sdata = 0; 720 else if (tmp < ADMTEMP_MAX_NEG) 721 sdata = ADMTEMP_MAX_NEG; 722 else 723 sdata = tmp & 0xff; 724 } 725 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &sdata); 726 } 727 728 if (*props & PROP_CRITMIN && sc->sc_nolow == 0) { 729 if (edata->sensor == ADMTEMP_INT) 730 cmd = ADM1021_INT_LOW_WRITE; 731 else 732 cmd = ADM1021_EXT_LOW_WRITE; 733 if (limits == NULL) 734 sdata = sc->sc_lowlim[edata->sensor]; 735 else { 736 tmp = (limits->sel_critmin - 273150000) / 1000000; 737 if (tmp > ADMTEMP_MAX_POS) 738 sdata = ADMTEMP_MAX_POS; 739 else if (tmp < 0 && sc->sc_noneg) 740 sdata = 0; 741 else if (tmp < ADMTEMP_MAX_NEG) 742 sdata = ADMTEMP_MAX_NEG; 743 else 744 sdata = tmp & 0xff; 745 } 746 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &sdata); 747 } 748 749 iic_release_bus(sc->sc_tag, 0); 750 } 751 752 static void 753 admtemp_encode_temp(const uint32_t val, int8_t *sdata, uint8_t *xdata, 754 const int ext11) 755 { 756 int32_t tmp; 757 758 if (ext11) { 759 /* Split temperature into high and low bytes */ 760 tmp = (val - 273150000) / 125000; 761 *xdata = (tmp & ADM1023_EXT2_MASK) << ADM1023_EXT2_SHIFT; 762 tmp -= (int32_t) (*xdata >> ADM1023_EXT2_SHIFT); 763 tmp /= 8; /* 1000000 / 125000 */ 764 } else { 765 *xdata = 0; 766 tmp = (val - 273150000) / 1000000; 767 } 768 if (tmp > ADMTEMP_MAX_POS) 769 *sdata = ADMTEMP_MAX_POS; 770 else if (tmp < 0) 771 *sdata = 0; 772 else 773 *sdata = tmp & 0xff; 774 } 775 776 void 777 admtemp_setlim_1023(struct sysmon_envsys *sme, envsys_data_t *edata, 778 sysmon_envsys_lim_t *limits, uint32_t *props) 779 { 780 struct admtemp_softc *sc = sme->sme_cookie; 781 int ext11; 782 uint8_t cmd, xdata; 783 int8_t sdata; 784 785 if (edata->sensor == ADMTEMP_INT) 786 ext11 = 0; 787 else 788 ext11 = 1; 789 790 if (iic_acquire_bus(sc->sc_tag, 0)) 791 return; 792 793 if (*props & PROP_CRITMAX) { 794 if (edata->sensor == ADMTEMP_INT) 795 cmd = ADM1021_INT_HIGH_WRITE; 796 else 797 cmd = ADM1021_EXT_HIGH_WRITE; 798 799 if (limits == NULL) { /* Restore defaults */ 800 sdata = sc->sc_highlim[edata->sensor]; 801 xdata = sc->sc_highlim2; 802 } else 803 admtemp_encode_temp(limits->sel_critmax, &sdata, 804 &xdata, ext11); 805 806 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &sdata); 807 if (ext11) { 808 cmd = ADM1023_EXT_HIGH2; 809 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &xdata); 810 } 811 } 812 813 if (*props & PROP_CRITMIN) { 814 if (edata->sensor == ADMTEMP_INT) 815 cmd = ADM1021_INT_LOW_WRITE; 816 else 817 cmd = ADM1021_EXT_LOW_WRITE; 818 if (limits == NULL) { 819 sdata = sc->sc_lowlim[edata->sensor]; 820 xdata = sc->sc_lowlim2; 821 } else 822 admtemp_encode_temp(limits->sel_critmax, &sdata, 823 &xdata, ext11); 824 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &sdata); 825 if (ext11) { 826 cmd = ADM1023_EXT_LOW2; 827 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &xdata); 828 } 829 } 830 831 iic_release_bus(sc->sc_tag, 0); 832 } 833 834 void 835 admtemp_setlim_1032(struct sysmon_envsys *sme, envsys_data_t *edata, 836 sysmon_envsys_lim_t *limits, uint32_t *props) 837 { 838 struct admtemp_softc *sc = sme->sme_cookie; 839 int ext11; 840 uint8_t cmd, xdata; 841 int8_t sdata; 842 843 if (edata->sensor == ADMTEMP_INT) 844 ext11 = 0; 845 else 846 ext11 = 1; 847 848 if (iic_acquire_bus(sc->sc_tag, 0)) 849 return; 850 851 if (*props & PROP_CRITMAX) { 852 if (edata->sensor == ADMTEMP_INT) 853 cmd = ADM1032_INT_THERM; 854 else 855 cmd = ADM1032_EXT_THERM; 856 if (limits == NULL) /* Restore default */ 857 sdata = sc->sc_thermlim[edata->sensor]; 858 else 859 admtemp_encode_temp(limits->sel_critmax, &sdata, 860 &xdata, 0); 861 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &sdata); 862 } 863 864 if (*props & PROP_WARNMAX) { 865 if (edata->sensor == ADMTEMP_INT) 866 cmd = ADM1021_INT_HIGH_WRITE; 867 else 868 cmd = ADM1021_EXT_HIGH_WRITE; 869 870 if (limits == NULL) { /* Restore defaults */ 871 sdata = sc->sc_highlim[edata->sensor]; 872 xdata = sc->sc_highlim2; 873 } else 874 admtemp_encode_temp(limits->sel_warnmax, &sdata, 875 &xdata, ext11); 876 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &sdata); 877 878 if (ext11) { 879 cmd = ADM1023_EXT_HIGH2; 880 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &xdata); 881 } 882 } 883 884 if (*props & PROP_WARNMIN) { 885 if (edata->sensor == ADMTEMP_INT) 886 cmd = ADM1021_INT_LOW_WRITE; 887 else 888 cmd = ADM1021_EXT_LOW_WRITE; 889 if (limits == NULL) { 890 sdata = sc->sc_lowlim[edata->sensor]; 891 xdata = sc->sc_lowlim2; 892 } else 893 admtemp_encode_temp(limits->sel_warnmin, &sdata, 894 &xdata, ext11); 895 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &sdata); 896 897 if (ext11) { 898 cmd = ADM1023_EXT_LOW2; 899 admtemp_exec(sc, I2C_OP_WRITE_WITH_STOP, &cmd, &xdata); 900 } 901 } 902 903 iic_release_bus(sc->sc_tag, 0); 904 } 905
Indexes created Sun Oct 12 05:10:08 GMT 2025