sdtemp.c revision 1.21
1 /* $NetBSD: sdtemp.c,v 1.21 2012/02/02 02:47:59 pgoyette Exp $ */ 2 3 /* 4 * Copyright (c) 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Goyette. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: sdtemp.c,v 1.21 2012/02/02 02:47:59 pgoyette Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kmem.h> 38 #include <sys/device.h> 39 #include <sys/kernel.h> 40 #include <sys/endian.h> 41 #include <sys/module.h> 42 43 #include <dev/sysmon/sysmonvar.h> 44 45 #include <dev/i2c/i2cvar.h> 46 #include <dev/i2c/sdtemp_reg.h> 47 48 struct sdtemp_softc { 49 device_t sc_dev; 50 i2c_tag_t sc_tag; 51 int sc_address; 52 53 struct sysmon_envsys *sc_sme; 54 envsys_data_t *sc_sensor; 55 sysmon_envsys_lim_t sc_deflims; 56 uint32_t sc_defprops; 57 int sc_resolution; 58 uint16_t sc_capability; 59 }; 60 61 static int sdtemp_match(device_t, cfdata_t, void *); 62 static void sdtemp_attach(device_t, device_t, void *); 63 static int sdtemp_detach(device_t, int); 64 65 CFATTACH_DECL_NEW(sdtemp, sizeof(struct sdtemp_softc), 66 sdtemp_match, sdtemp_attach, sdtemp_detach, NULL); 67 68 static void sdtemp_refresh(struct sysmon_envsys *, envsys_data_t *); 69 static void sdtemp_get_limits(struct sysmon_envsys *, envsys_data_t *, 70 sysmon_envsys_lim_t *, uint32_t *); 71 static void sdtemp_set_limits(struct sysmon_envsys *, envsys_data_t *, 72 sysmon_envsys_lim_t *, uint32_t *); 73 #ifdef NOT_YET 74 static int sdtemp_read_8(struct sdtemp_softc *, uint8_t, uint8_t *); 75 static int sdtemp_write_8(struct sdtemp_softc *, uint8_t, uint8_t); 76 #endif /* NOT YET */ 77 static int sdtemp_read_16(struct sdtemp_softc *, uint8_t, uint16_t *); 78 static int sdtemp_write_16(struct sdtemp_softc *, uint8_t, uint16_t); 79 static uint32_t sdtemp_decode_temp(struct sdtemp_softc *, uint16_t); 80 static bool sdtemp_pmf_suspend(device_t, const pmf_qual_t *); 81 static bool sdtemp_pmf_resume(device_t, const pmf_qual_t *); 82 83 struct sdtemp_dev_entry { 84 const uint16_t sdtemp_mfg_id; 85 const uint16_t sdtemp_devrev; 86 const uint16_t sdtemp_mask; 87 const uint8_t sdtemp_resolution; 88 const char *sdtemp_desc; 89 }; 90 91 /* Convert sysmon_envsys uKelvin value to simple degC */ 92 93 #define __UK2C(uk) (((uk) - 273150000) / 1000000) 94 95 /* 96 * List of devices known to conform to JEDEC JC42.4 97 * 98 * NOTE: A non-negative value for resolution indicates that the sensor 99 * resolution is fixed at that number of fractional bits; a negative 100 * value indicates that the sensor needs to be configured. In either 101 * case, trip-point registers are fixed at two-bit (0.25C) resolution. 102 */ 103 static const struct sdtemp_dev_entry 104 sdtemp_dev_table[] = { 105 { MAXIM_MANUFACTURER_ID, MAX_6604_DEVICE_ID, MAX_6604_MASK, 3, 106 "Maxim MAX6604" }, 107 { MCP_MANUFACTURER_ID, MCP_9805_DEVICE_ID, MCP_9805_MASK, 2, 108 "Microchip Tech MCP9805/MCP9843" }, 109 { MCP_MANUFACTURER_ID, MCP_98243_DEVICE_ID, MCP_98243_MASK, -4, 110 "Microchip Tech MCP98243" }, 111 { MCP_MANUFACTURER_ID, MCP_98242_DEVICE_ID, MCP_98242_MASK, -4, 112 "Microchip Tech MCP98242" }, 113 { ADT_MANUFACTURER_ID, ADT_7408_DEVICE_ID, ADT_7408_MASK, 4, 114 "Analog Devices ADT7408" }, 115 { NXP_MANUFACTURER_ID, NXP_SE98_DEVICE_ID, NXP_SE98_MASK, 3, 116 "NXP Semiconductors SE97B/SE98" }, 117 { NXP_MANUFACTURER_ID, NXP_SE97_DEVICE_ID, NXP_SE97_MASK, 3, 118 "NXP Semiconductors SE97" }, 119 { STTS_MANUFACTURER_ID, STTS_424E_DEVICE_ID, STTS_424E_MASK, 2, 120 "STmicroelectronics STTS424E" }, 121 { STTS_MANUFACTURER_ID, STTS_424_DEVICE_ID, STTS_424_MASK, 2, 122 "STmicroelectronics STTS424" }, 123 { CAT_MANUFACTURER_ID, CAT_34TS02_DEVICE_ID, CAT_34TS02_MASK, 4, 124 "Catalyst CAT34TS02/CAT6095" }, 125 { IDT_MANUFACTURER_ID, IDT_TS3000B3_DEVICE_ID, IDT_TS3000B3_MASK, 4, 126 "Integrated Device Technology TS3000B3/TSE2002B3" }, 127 { 0, 0, 0, 2, "Unknown" } 128 }; 129 130 static int 131 sdtemp_lookup(uint16_t mfg, uint16_t devrev) 132 { 133 int i; 134 135 for (i = 0; sdtemp_dev_table[i].sdtemp_mfg_id; i++) { 136 if (mfg != sdtemp_dev_table[i].sdtemp_mfg_id) 137 continue; 138 if ((devrev & sdtemp_dev_table[i].sdtemp_mask) == 139 sdtemp_dev_table[i].sdtemp_devrev) 140 break; 141 } 142 143 return i; 144 } 145 146 static int 147 sdtemp_match(device_t parent, cfdata_t cf, void *aux) 148 { 149 struct i2c_attach_args *ia = aux; 150 uint16_t mfgid, devid; 151 struct sdtemp_softc sc; 152 int i, error; 153 154 sc.sc_tag = ia->ia_tag; 155 sc.sc_address = ia->ia_addr; 156 157 if ((ia->ia_addr & SDTEMP_ADDRMASK) != SDTEMP_ADDR) 158 return 0; 159 160 /* Verify that we can read the manufacturer ID & Device ID */ 161 iic_acquire_bus(sc.sc_tag, 0); 162 error = sdtemp_read_16(&sc, SDTEMP_REG_MFG_ID, &mfgid) | 163 sdtemp_read_16(&sc, SDTEMP_REG_DEV_REV, &devid); 164 iic_release_bus(sc.sc_tag, 0); 165 166 if (error) 167 return 0; 168 169 i = sdtemp_lookup(mfgid, devid); 170 if (sdtemp_dev_table[i].sdtemp_mfg_id == 0) { 171 aprint_debug("sdtemp: No match for mfg 0x%04x dev 0x%02x " 172 "rev 0x%02x at address 0x%02x\n", mfgid, devid >> 8, 173 devid & 0xff, sc.sc_address); 174 return 0; 175 } 176 177 return 1; 178 } 179 180 static void 181 sdtemp_attach(device_t parent, device_t self, void *aux) 182 { 183 struct sdtemp_softc *sc = device_private(self); 184 struct i2c_attach_args *ia = aux; 185 uint16_t mfgid, devid; 186 int i, error; 187 188 sc->sc_tag = ia->ia_tag; 189 sc->sc_address = ia->ia_addr; 190 sc->sc_dev = self; 191 192 iic_acquire_bus(sc->sc_tag, 0); 193 if ((error = sdtemp_read_16(sc, SDTEMP_REG_MFG_ID, &mfgid)) != 0 || 194 (error = sdtemp_read_16(sc, SDTEMP_REG_DEV_REV, &devid)) != 0) { 195 iic_release_bus(sc->sc_tag, 0); 196 aprint_error(": attach error %d\n", error); 197 return; 198 } 199 i = sdtemp_lookup(mfgid, devid); 200 sc->sc_resolution = 201 sdtemp_dev_table[i].sdtemp_resolution; 202 203 aprint_naive(": Temp Sensor\n"); 204 aprint_normal(": %s Temp Sensor\n", sdtemp_dev_table[i].sdtemp_desc); 205 206 if (sdtemp_dev_table[i].sdtemp_mfg_id == 0) 207 aprint_debug_dev(self, 208 "mfg 0x%04x dev 0x%02x rev 0x%02x at addr 0x%02x\n", 209 mfgid, devid >> 8, devid & 0xff, ia->ia_addr); 210 211 /* 212 * Alarm capability is required; if not present, this is likely 213 * not a real sdtemp device. 214 */ 215 error = sdtemp_read_16(sc, SDTEMP_REG_CAPABILITY, &sc->sc_capability); 216 if (error != 0 || (sc->sc_capability & SDTEMP_CAP_HAS_ALARM) == 0) { 217 iic_release_bus(sc->sc_tag, 0); 218 aprint_error_dev(self, 219 "required alarm capability not present!\n"); 220 return; 221 } 222 /* Set the configuration to defaults. */ 223 error = sdtemp_write_16(sc, SDTEMP_REG_CONFIG, 0); 224 if (error != 0) { 225 iic_release_bus(sc->sc_tag, 0); 226 aprint_error_dev(self, "error %d writing config register\n", 227 error); 228 return; 229 } 230 /* If variable resolution, set to max */ 231 if (sc->sc_resolution < 0) { 232 sc->sc_resolution = ~sc->sc_resolution; 233 error = sdtemp_write_16(sc, SDTEMP_REG_RESOLUTION, 234 sc->sc_resolution & 0x3); 235 if (error != 0) { 236 iic_release_bus(sc->sc_tag, 0); 237 aprint_error_dev(self, 238 "error %d writing resolution register\n", error); 239 return; 240 } else 241 sc->sc_resolution++; 242 } 243 iic_release_bus(sc->sc_tag, 0); 244 245 /* Hook us into the sysmon_envsys subsystem */ 246 sc->sc_sme = sysmon_envsys_create(); 247 sc->sc_sme->sme_name = device_xname(self); 248 sc->sc_sme->sme_cookie = sc; 249 sc->sc_sme->sme_refresh = sdtemp_refresh; 250 sc->sc_sme->sme_get_limits = sdtemp_get_limits; 251 sc->sc_sme->sme_set_limits = sdtemp_set_limits; 252 253 sc->sc_sensor = kmem_zalloc(sizeof(envsys_data_t), KM_NOSLEEP); 254 if (!sc->sc_sensor) { 255 aprint_error_dev(self, "unable to allocate sc_sensor\n"); 256 goto bad2; 257 } 258 259 /* Initialize sensor data. */ 260 sc->sc_sensor->units = ENVSYS_STEMP; 261 sc->sc_sensor->state = ENVSYS_SINVALID; 262 sc->sc_sensor->flags |= ENVSYS_FMONLIMITS; 263 (void)strlcpy(sc->sc_sensor->desc, device_xname(self), 264 sizeof(sc->sc_sensor->desc)); 265 266 /* Now attach the sensor */ 267 if (sysmon_envsys_sensor_attach(sc->sc_sme, sc->sc_sensor)) { 268 aprint_error_dev(self, "unable to attach sensor\n"); 269 goto bad; 270 } 271 272 /* Register the device */ 273 error = sysmon_envsys_register(sc->sc_sme); 274 if (error) { 275 aprint_error_dev(self, "error %d registering with sysmon\n", 276 error); 277 goto bad; 278 } 279 280 if (!pmf_device_register(self, sdtemp_pmf_suspend, sdtemp_pmf_resume)) 281 aprint_error_dev(self, "couldn't establish power handler\n"); 282 283 /* Retrieve and display hardware monitor limits */ 284 sdtemp_get_limits(sc->sc_sme, sc->sc_sensor, &sc->sc_deflims, 285 &sc->sc_defprops); 286 aprint_normal_dev(self, "Hardware limits: "); 287 i = 0; 288 if (sc->sc_defprops & PROP_WARNMIN) { 289 aprint_normal("low %dC", 290 __UK2C(sc->sc_deflims.sel_warnmin)); 291 i++; 292 } 293 if (sc->sc_defprops & PROP_WARNMAX) { 294 aprint_normal("%shigh %dC ", (i)?", ":"", 295 __UK2C(sc->sc_deflims.sel_warnmax)); 296 i++; 297 } 298 if (sc->sc_defprops & PROP_CRITMAX) { 299 aprint_normal("%scritical %dC ", (i)?", ":"", 300 __UK2C(sc->sc_deflims.sel_critmax)); 301 i++; 302 } 303 aprint_normal("%s\n", (i)?"":"none set"); 304 305 return; 306 307 bad: 308 kmem_free(sc->sc_sensor, sizeof(envsys_data_t)); 309 bad2: 310 sysmon_envsys_destroy(sc->sc_sme); 311 } 312 313 static int 314 sdtemp_detach(device_t self, int flags) 315 { 316 struct sdtemp_softc *sc = device_private(self); 317 318 pmf_device_deregister(self); 319 320 if (sc->sc_sme) 321 sysmon_envsys_unregister(sc->sc_sme); 322 if (sc->sc_sensor) 323 kmem_free(sc->sc_sensor, sizeof(envsys_data_t)); 324 325 return 0; 326 } 327 328 /* Retrieve current limits from device, and encode in uKelvins */ 329 static void 330 sdtemp_get_limits(struct sysmon_envsys *sme, envsys_data_t *edata, 331 sysmon_envsys_lim_t *limits, uint32_t *props) 332 { 333 struct sdtemp_softc *sc = sme->sme_cookie; 334 uint16_t lim; 335 336 *props = 0; 337 iic_acquire_bus(sc->sc_tag, 0); 338 if (sdtemp_read_16(sc, SDTEMP_REG_LOWER_LIM, &lim) == 0 && lim != 0) { 339 limits->sel_warnmin = sdtemp_decode_temp(sc, lim); 340 *props |= PROP_WARNMIN; 341 } 342 if (sdtemp_read_16(sc, SDTEMP_REG_UPPER_LIM, &lim) == 0 && lim != 0) { 343 limits->sel_warnmax = sdtemp_decode_temp(sc, lim); 344 *props |= PROP_WARNMAX; 345 } 346 if (sdtemp_read_16(sc, SDTEMP_REG_CRIT_LIM, &lim) == 0 && lim != 0) { 347 limits->sel_critmax = sdtemp_decode_temp(sc, lim); 348 *props |= PROP_CRITMAX; 349 } 350 iic_release_bus(sc->sc_tag, 0); 351 if (*props != 0) 352 *props |= PROP_DRIVER_LIMITS; 353 } 354 355 /* Send current limit values to the device */ 356 static void 357 sdtemp_set_limits(struct sysmon_envsys *sme, envsys_data_t *edata, 358 sysmon_envsys_lim_t *limits, uint32_t *props) 359 { 360 uint16_t val; 361 struct sdtemp_softc *sc = sme->sme_cookie; 362 363 if (limits == NULL) { 364 limits = &sc->sc_deflims; 365 props = &sc->sc_defprops; 366 } 367 iic_acquire_bus(sc->sc_tag, 0); 368 if (*props & PROP_WARNMIN) { 369 val = __UK2C(limits->sel_warnmin); 370 (void)sdtemp_write_16(sc, SDTEMP_REG_LOWER_LIM, 371 (val << 4) & SDTEMP_TEMP_MASK); 372 } 373 if (*props & PROP_WARNMAX) { 374 val = __UK2C(limits->sel_warnmax); 375 (void)sdtemp_write_16(sc, SDTEMP_REG_UPPER_LIM, 376 (val << 4) & SDTEMP_TEMP_MASK); 377 } 378 if (*props & PROP_CRITMAX) { 379 val = __UK2C(limits->sel_critmax); 380 (void)sdtemp_write_16(sc, SDTEMP_REG_CRIT_LIM, 381 (val << 4) & SDTEMP_TEMP_MASK); 382 } 383 iic_release_bus(sc->sc_tag, 0); 384 385 /* 386 * If at least one limit is set that we can handle, and no 387 * limits are set that we cannot handle, tell sysmon that 388 * the driver will take care of monitoring the limits! 389 */ 390 if (*props & (PROP_CRITMIN | PROP_BATTCAP | PROP_BATTWARN)) 391 *props &= ~PROP_DRIVER_LIMITS; 392 else if (*props & PROP_LIMITS) 393 *props |= PROP_DRIVER_LIMITS; 394 else 395 *props &= ~PROP_DRIVER_LIMITS; 396 } 397 398 #ifdef NOT_YET /* All registers on these sensors are 16-bits */ 399 400 /* Read a 8-bit value from a register */ 401 static int 402 sdtemp_read_8(struct sdtemp_softc *sc, uint8_t reg, uint8_t *valp) 403 { 404 int error; 405 406 error = iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 407 sc->sc_address, ®, 1, valp, sizeof(*valp), 0); 408 409 return error; 410 } 411 412 static int 413 sdtemp_write_8(struct sdtemp_softc *sc, uint8_t reg, uint8_t val) 414 { 415 return iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP, 416 sc->sc_address, ®, 1, &val, sizeof(val), 0); 417 } 418 #endif /* NOT_YET */ 419 420 /* Read a 16-bit value from a register */ 421 static int 422 sdtemp_read_16(struct sdtemp_softc *sc, uint8_t reg, uint16_t *valp) 423 { 424 int error; 425 426 error = iic_exec(sc->sc_tag, I2C_OP_READ_WITH_STOP, 427 sc->sc_address, ®, 1, valp, sizeof(*valp), 0); 428 if (error) 429 return error; 430 431 *valp = be16toh(*valp); 432 433 return 0; 434 } 435 436 static int 437 sdtemp_write_16(struct sdtemp_softc *sc, uint8_t reg, uint16_t val) 438 { 439 uint16_t temp; 440 441 temp = htobe16(val); 442 return iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP, 443 sc->sc_address, ®, 1, &temp, sizeof(temp), 0); 444 } 445 446 static uint32_t 447 sdtemp_decode_temp(struct sdtemp_softc *sc, uint16_t temp) 448 { 449 uint32_t val; 450 int32_t stemp; 451 452 /* Get only the temperature bits */ 453 temp &= SDTEMP_TEMP_MASK; 454 455 /* If necessary, extend the sign bit */ 456 if ((sc->sc_capability & SDTEMP_CAP_WIDER_RANGE) && 457 (temp & SDTEMP_TEMP_NEGATIVE)) 458 temp |= SDTEMP_TEMP_SIGN_EXT; 459 460 /* Mask off only bits valid within current resolution */ 461 temp &= ~(0xf >> sc->sc_resolution); 462 463 /* Treat as signed and extend to 32-bits */ 464 stemp = (int16_t)temp; 465 466 /* Now convert from 0.0625 (1/16) deg C increments to microKelvins */ 467 val = (stemp * 62500) + 273150000; 468 469 return val; 470 } 471 472 static void 473 sdtemp_refresh(struct sysmon_envsys *sme, envsys_data_t *edata) 474 { 475 struct sdtemp_softc *sc = sme->sme_cookie; 476 uint16_t val; 477 int error; 478 479 iic_acquire_bus(sc->sc_tag, 0); 480 error = sdtemp_read_16(sc, SDTEMP_REG_AMBIENT_TEMP, &val); 481 iic_release_bus(sc->sc_tag, 0); 482 483 if (error) { 484 edata->state = ENVSYS_SINVALID; 485 return; 486 } 487 488 edata->value_cur = sdtemp_decode_temp(sc, val); 489 490 /* Now check for limits */ 491 if ((edata->upropset & PROP_DRIVER_LIMITS) == 0) 492 edata->state = ENVSYS_SVALID; 493 else if ((val & SDTEMP_ABOVE_CRIT) && 494 (edata->upropset & PROP_CRITMAX)) 495 edata->state = ENVSYS_SCRITOVER; 496 else if ((val & SDTEMP_ABOVE_UPPER) && 497 (edata->upropset & PROP_WARNMAX)) 498 edata->state = ENVSYS_SWARNOVER; 499 else if ((val & SDTEMP_BELOW_LOWER) && 500 (edata->upropset & PROP_WARNMIN)) 501 edata->state = ENVSYS_SWARNUNDER; 502 else 503 edata->state = ENVSYS_SVALID; 504 } 505 506 /* 507 * power management functions 508 * 509 * We go into "shutdown" mode at suspend time, and return to normal 510 * mode upon resume. This reduces power consumption by disabling 511 * the A/D converter. 512 */ 513 514 static bool 515 sdtemp_pmf_suspend(device_t dev, const pmf_qual_t *qual) 516 { 517 struct sdtemp_softc *sc = device_private(dev); 518 int error; 519 uint16_t config; 520 521 iic_acquire_bus(sc->sc_tag, 0); 522 error = sdtemp_read_16(sc, SDTEMP_REG_CONFIG, &config); 523 if (error == 0) { 524 config |= SDTEMP_CONFIG_SHUTDOWN_MODE; 525 error = sdtemp_write_16(sc, SDTEMP_REG_CONFIG, config); 526 } 527 iic_release_bus(sc->sc_tag, 0); 528 return (error == 0); 529 } 530 531 static bool 532 sdtemp_pmf_resume(device_t dev, const pmf_qual_t *qual) 533 { 534 struct sdtemp_softc *sc = device_private(dev); 535 int error; 536 uint16_t config; 537 538 iic_acquire_bus(sc->sc_tag, 0); 539 error = sdtemp_read_16(sc, SDTEMP_REG_CONFIG, &config); 540 if (error == 0) { 541 config &= ~SDTEMP_CONFIG_SHUTDOWN_MODE; 542 error = sdtemp_write_16(sc, SDTEMP_REG_CONFIG, config); 543 } 544 iic_release_bus(sc->sc_tag, 0); 545 return (error == 0); 546 } 547 548 MODULE(MODULE_CLASS_DRIVER, sdtemp, "iic"); 549 550 #ifdef _MODULE 551 #include "ioconf.c" 552 #endif 553 554 static int 555 sdtemp_modcmd(modcmd_t cmd, void *opaque) 556 { 557 int error = 0; 558 559 switch (cmd) { 560 case MODULE_CMD_INIT: 561 #ifdef _MODULE 562 error = config_init_component(cfdriver_ioconf_sdtemp, 563 cfattach_ioconf_sdtemp, cfdata_ioconf_sdtemp); 564 #endif 565 return error; 566 case MODULE_CMD_FINI: 567 #ifdef _MODULE 568 error = config_fini_component(cfdriver_ioconf_sdtemp, 569 cfattach_ioconf_sdtemp, cfdata_ioconf_sdtemp); 570 #endif 571 return error; 572 default: 573 return ENOTTY; 574 } 575 } 576
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