wbsio.c revision 1.19
1 /* $NetBSD: wbsio.c,v 1.19 2017/12/13 00:29:02 knakahara Exp $ */ 2 /* $OpenBSD: wbsio.c,v 1.10 2015/03/14 03:38:47 jsg Exp $ */ 3 /* 4 * Copyright (c) 2008 Mark Kettenis <kettenis (at) openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* 20 * Winbond LPC Super I/O driver. 21 */ 22 23 #include <sys/cdefs.h> 24 #include <sys/param.h> 25 #include <sys/device.h> 26 #include <sys/kernel.h> 27 #include <sys/module.h> 28 #include <sys/systm.h> 29 #include <sys/mutex.h> 30 #include <sys/gpio.h> 31 32 #include <sys/bus.h> 33 34 #include <dev/isa/isareg.h> 35 #include <dev/isa/isavar.h> 36 #include <dev/isa/wbsioreg.h> 37 #include <dev/sysmon/sysmonvar.h> 38 39 /* Don't use gpio for now in the module */ 40 #if !defined(_MODULE) && defined(WBSIO_GPIO) 41 #include "gpio.h" 42 #endif 43 44 #if NGPIO > 0 45 #include <dev/gpio/gpiovar.h> 46 #endif 47 48 struct wbsio_softc { 49 device_t sc_dev; 50 device_t sc_lm_dev; 51 #if NGPIO > 0 52 device_t sc_gpio_dev; 53 #endif 54 55 bus_space_tag_t sc_iot; 56 bus_space_handle_t sc_ioh; 57 kmutex_t sc_conf_lock; 58 59 struct isa_attach_args sc_ia; 60 struct isa_io sc_io; 61 62 #if NGPIO > 0 63 bus_space_handle_t sc_gpio_ioh; 64 kmutex_t sc_gpio_lock; 65 struct gpio_chipset_tag sc_gpio_gc; 66 struct gpio_pin sc_gpio_pins[WBSIO_GPIO_NPINS]; 67 bool sc_gpio_rt; 68 #endif 69 70 struct sysmon_wdog sc_smw; 71 bool sc_smw_valid; 72 }; 73 74 static const struct wbsio_product { 75 uint16_t id; 76 bool idis12bits; 77 const char *str; 78 } wbsio_products[] = { 79 { WBSIO_ID_W83627HF, false, "W83627HF" }, 80 { WBSIO_ID_W83697HF, false, "W83697HF" }, 81 { WBSIO_ID_W83637HF, false, "W83637HF" }, 82 { WBSIO_ID_W83627THF, false, "W83627THF" }, 83 { WBSIO_ID_W83687THF, false, "W83687THF" }, 84 { WBSIO_ID_W83627DHG, true, "W83627DHG" }, 85 { WBSIO_ID_W83627DHGP, true, "W83627DHG-P" }, 86 { WBSIO_ID_W83627EHF, true, "W83627EHF" }, 87 { WBSIO_ID_W83627SF, true, "W83627SF" }, 88 { WBSIO_ID_W83627UHG, true, "W83627UHG" }, 89 { WBSIO_ID_W83667HG, true, "W83667HG" }, 90 { WBSIO_ID_W83667HGB, true, "W83667HGB" }, 91 { WBSIO_ID_W83697UG, true, "W83697UG" }, 92 { WBSIO_ID_NCT6775F, true, "NCT6775F" }, 93 { WBSIO_ID_NCT6776F, true, "NCT6776F" }, 94 { WBSIO_ID_NCT5104D, true, "NCT5104D or 610[246]D" }, 95 { WBSIO_ID_NCT6779D, true, "NCT6779D" }, 96 { WBSIO_ID_NCT6791D, true, "NCT6791D" }, 97 { WBSIO_ID_NCT6792D, true, "NCT6792D" }, 98 { WBSIO_ID_NCT6793D, true, "NCT6793D" }, 99 { WBSIO_ID_NCT6795D, true, "NCT6795D" }, 100 }; 101 102 static const struct wbsio_product *wbsio_lookup(uint8_t id, uint8_t rev); 103 static int wbsio_match(device_t, cfdata_t, void *); 104 static void wbsio_attach(device_t, device_t, void *); 105 static int wbsio_detach(device_t, int); 106 static int wbsio_rescan(device_t, const char *, const int *); 107 static void wbsio_childdet(device_t, device_t); 108 static int wbsio_print(void *, const char *); 109 static int wbsio_search(device_t, cfdata_t, const int *, void *); 110 static bool wbsio_suspend(device_t, const pmf_qual_t *); 111 #if NGPIO > 0 112 static int wbsio_gpio_search(device_t, cfdata_t, const int *, void *); 113 static int wbsio_gpio_rt_init(struct wbsio_softc *); 114 static int wbsio_gpio_rt_read(struct wbsio_softc *, int, int); 115 static void wbsio_gpio_rt_write(struct wbsio_softc *, int, int, int); 116 static int wbsio_gpio_rt_pin_read(void *, int); 117 static void wbsio_gpio_rt_pin_write(void *, int, int); 118 static void wbsio_gpio_rt_pin_ctl(void *, int, int); 119 static void wbsio_gpio_enable_nct6779d(device_t); 120 static void wbsio_gpio_pinconfig_nct6779d(device_t); 121 #endif 122 static void wbsio_wdog_attach(device_t); 123 static int wbsio_wdog_detach(device_t); 124 static int wbsio_wdog_setmode(struct sysmon_wdog *); 125 static int wbsio_wdog_tickle(struct sysmon_wdog *); 126 static void wbsio_wdog_setcounter(struct wbsio_softc *, uint8_t); 127 static void wbsio_wdog_clear_timeout(struct wbsio_softc *); 128 129 CFATTACH_DECL2_NEW(wbsio, sizeof(struct wbsio_softc), 130 wbsio_match, wbsio_attach, wbsio_detach, NULL, 131 wbsio_rescan, wbsio_childdet); 132 133 static __inline void 134 wbsio_conf_enable(kmutex_t *lock, bus_space_tag_t iot, bus_space_handle_t ioh) 135 { 136 if (lock) 137 mutex_enter(lock); 138 139 bus_space_write_1(iot, ioh, WBSIO_INDEX, WBSIO_CONF_EN_MAGIC); 140 bus_space_write_1(iot, ioh, WBSIO_INDEX, WBSIO_CONF_EN_MAGIC); 141 } 142 143 static __inline void 144 wbsio_conf_disable(kmutex_t *lock, bus_space_tag_t iot, bus_space_handle_t ioh) 145 { 146 147 bus_space_write_1(iot, ioh, WBSIO_INDEX, WBSIO_CONF_DS_MAGIC); 148 149 if (lock) 150 mutex_exit(lock); 151 } 152 153 static __inline uint8_t 154 wbsio_conf_read(bus_space_tag_t iot, bus_space_handle_t ioh, uint8_t index) 155 { 156 bus_space_write_1(iot, ioh, WBSIO_INDEX, index); 157 return (bus_space_read_1(iot, ioh, WBSIO_DATA)); 158 } 159 160 static __inline void 161 wbsio_conf_write(bus_space_tag_t iot, bus_space_handle_t ioh, uint8_t index, 162 uint8_t data) 163 { 164 bus_space_write_1(iot, ioh, WBSIO_INDEX, index); 165 bus_space_write_1(iot, ioh, WBSIO_DATA, data); 166 } 167 168 static const struct wbsio_product * 169 wbsio_lookup(uint8_t id, uint8_t rev) 170 { 171 uint16_t wid = ((uint16_t)id << 4) | (rev >> 4); 172 int i; 173 174 for (i = 0; i < __arraycount(wbsio_products); i++) { 175 if (wbsio_products[i].idis12bits) { 176 if (wbsio_products[i].id == wid) 177 return &wbsio_products[i]; 178 } else { 179 if (wbsio_products[i].id == id) 180 return &wbsio_products[i]; 181 } 182 } 183 184 /* Not found */ 185 return NULL; 186 } 187 188 int 189 wbsio_match(device_t parent, cfdata_t match, void *aux) 190 { 191 struct isa_attach_args *ia = aux; 192 const struct wbsio_product *product; 193 bus_space_tag_t iot; 194 bus_space_handle_t ioh; 195 uint8_t id, rev; 196 197 /* Must supply an address */ 198 if (ia->ia_nio < 1) 199 return 0; 200 201 if (ISA_DIRECT_CONFIG(ia)) 202 return 0; 203 204 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 205 return 0; 206 207 /* Match by device ID */ 208 iot = ia->ia_iot; 209 if (bus_space_map(iot, ia->ia_io[0].ir_addr, WBSIO_IOSIZE, 0, &ioh)) 210 return 0; 211 wbsio_conf_enable(NULL, iot, ioh); 212 id = wbsio_conf_read(iot, ioh, WBSIO_ID); 213 rev = wbsio_conf_read(iot, ioh, WBSIO_REV); 214 aprint_debug("wbsio_probe: id 0x%02x, rev 0x%02x\n", id, rev); 215 wbsio_conf_disable(NULL, iot, ioh); 216 bus_space_unmap(iot, ioh, WBSIO_IOSIZE); 217 218 if ((product = wbsio_lookup(id, rev)) == NULL) 219 return 0; 220 221 ia->ia_nio = 1; 222 ia->ia_io[0].ir_size = WBSIO_IOSIZE; 223 ia->ia_niomem = 0; 224 ia->ia_nirq = 0; 225 ia->ia_ndrq = 0; 226 return 1; 227 } 228 229 void 230 wbsio_attach(device_t parent, device_t self, void *aux) 231 { 232 struct wbsio_softc *sc = device_private(self); 233 struct isa_attach_args *ia = aux; 234 const struct wbsio_product *product; 235 const char *desc; 236 const char *vendor; 237 uint8_t id, rev; 238 239 sc->sc_dev = self; 240 241 sc->sc_ia = *ia; 242 243 /* Map ISA I/O space */ 244 sc->sc_iot = ia->ia_iot; 245 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 246 WBSIO_IOSIZE, 0, &sc->sc_ioh)) { 247 aprint_error(": can't map i/o space\n"); 248 return; 249 } 250 251 mutex_init(&sc->sc_conf_lock, MUTEX_DEFAULT, IPL_NONE); 252 253 /* Enter configuration mode */ 254 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 255 256 /* Read device ID */ 257 id = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_ID); 258 /* Read device revision */ 259 rev = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_REV); 260 261 /* Escape from configuration mode */ 262 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 263 264 if ((product = wbsio_lookup(id, rev)) == NULL) { 265 aprint_error_dev(self, "Unknown device. Failed to attach\n"); 266 return; 267 } 268 if (product->idis12bits) 269 rev &= 0x0f; /* Revision is low 4bits */ 270 271 desc = product->str; 272 if (desc[0] == 'W') 273 vendor = "Winbond"; 274 else 275 vendor = "Nuvoton"; 276 aprint_naive("\n"); 277 aprint_normal(": %s LPC Super I/O %s rev ", vendor, desc); 278 if (product->idis12bits) { 279 /* Revision filed is 4bit only */ 280 aprint_normal("%c\n", 'A' + rev); 281 } else 282 aprint_normal("0x%02x\n", rev); 283 284 if (!pmf_device_register(self, wbsio_suspend, NULL)) 285 aprint_error_dev(self, "couldn't establish power handler\n"); 286 287 wbsio_wdog_attach(self); 288 289 wbsio_rescan(self, "wbsio", NULL); 290 291 #if NGPIO > 0 292 293 wbsio_rescan(self, "gpiobus", NULL); 294 #endif 295 } 296 297 int 298 wbsio_detach(device_t self, int flags) 299 { 300 struct wbsio_softc *sc = device_private(self); 301 int rc; 302 303 if ((rc = wbsio_wdog_detach(self)) != 0) 304 return rc; 305 306 if ((rc = config_detach_children(self, flags)) != 0) 307 return rc; 308 bus_space_unmap(sc->sc_iot, sc->sc_ioh, WBSIO_IOSIZE); 309 pmf_device_deregister(self); 310 311 #if NGPIO > 0 312 if (sc->sc_gpio_dev) { 313 bus_space_unmap(sc->sc_iot, sc->sc_gpio_ioh, 314 WBSIO_GPIO_IOSIZE); 315 } 316 317 if (sc->sc_gpio_rt) { 318 mutex_destroy(&sc->sc_gpio_lock); 319 } 320 #endif 321 322 mutex_destroy(&sc->sc_conf_lock); 323 return 0; 324 } 325 326 int 327 wbsio_rescan(device_t self, const char *ifattr, const int *locators) 328 { 329 330 #if NGPIO > 0 331 if (ifattr_match(ifattr, "gpiobus")) { 332 config_search_loc(wbsio_gpio_search, self, 333 ifattr, locators, NULL); 334 return 0; 335 } 336 #endif 337 config_search_loc(wbsio_search, self, ifattr, locators, NULL); 338 339 return 0; 340 } 341 342 void 343 wbsio_childdet(device_t self, device_t child) 344 { 345 struct wbsio_softc *sc = device_private(self); 346 347 if (sc->sc_lm_dev == child) 348 sc->sc_lm_dev = NULL; 349 } 350 351 static int 352 wbsio_search(device_t parent, cfdata_t cf, const int *slocs, void *aux) 353 { 354 struct wbsio_softc *sc = device_private(parent); 355 const struct wbsio_product *product; 356 uint16_t iobase; 357 uint16_t devid; 358 uint8_t reg0, reg1, rev; 359 360 /* Enter configuration mode */ 361 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 362 363 /* Select HM logical device */ 364 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_HM); 365 366 /* 367 * The address should be 8-byte aligned, but it seems some 368 * BIOSes ignore this. They get away with it, because 369 * Apparently the hardware simply ignores the lower three 370 * bits. We do the same here. 371 */ 372 reg0 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_HM_ADDR_LSB); 373 reg1 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_HM_ADDR_MSB); 374 375 /* Escape from configuration mode */ 376 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 377 378 iobase = (reg1 << 8) | (reg0 & ~0x7); 379 380 if (iobase == 0) 381 return -1; 382 383 /* Enter configuration mode */ 384 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 385 /* Read device ID and revision */ 386 devid = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_ID); 387 rev = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_REV); 388 /* Escape from configuration mode */ 389 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 390 391 if ((product = wbsio_lookup(devid, rev)) == NULL) { 392 aprint_error_dev(parent, "%s: Unknown device.\n", __func__); 393 return -1; 394 } 395 if (product->idis12bits) 396 devid = (devid << 4) | (rev >> 4); 397 398 sc->sc_ia.ia_nio = 1; 399 sc->sc_ia.ia_io = &sc->sc_io; 400 sc->sc_ia.ia_io[0].ir_addr = iobase; 401 sc->sc_ia.ia_io[0].ir_size = 8; 402 sc->sc_ia.ia_niomem = 0; 403 sc->sc_ia.ia_nirq = 0; 404 sc->sc_ia.ia_ndrq = 0; 405 /* Store device-id to ia_aux */ 406 sc->sc_ia.ia_aux = (void *)(uintptr_t)devid; 407 sc->sc_lm_dev = config_attach(parent, cf, &sc->sc_ia, wbsio_print); 408 409 return 0; 410 } 411 412 int 413 wbsio_print(void *aux, const char *pnp) 414 { 415 struct isa_attach_args *ia = aux; 416 417 if (pnp) 418 aprint_normal("%s", pnp); 419 if (ia->ia_io[0].ir_size) 420 aprint_normal(" port 0x%x", ia->ia_io[0].ir_addr); 421 if (ia->ia_io[0].ir_size > 1) 422 aprint_normal("-0x%x", ia->ia_io[0].ir_addr + 423 ia->ia_io[0].ir_size - 1); 424 return (UNCONF); 425 } 426 427 static bool 428 wbsio_suspend(device_t self, const pmf_qual_t *qual) 429 { 430 struct wbsio_softc *sc = device_private(self); 431 432 if (sc->sc_smw_valid) { 433 if ((sc->sc_smw.smw_mode & WDOG_MODE_MASK) 434 != WDOG_MODE_DISARMED) 435 return false; 436 } 437 438 return true; 439 } 440 441 #if NGPIO > 0 442 static int 443 wbsio_gpio_search(device_t parent, cfdata_t cf, const int *slocs, void *aux) 444 { 445 struct wbsio_softc *sc = device_private(parent); 446 const struct wbsio_product *product; 447 struct gpiobus_attach_args gba; 448 uint16_t devid; 449 uint8_t rev; 450 int i; 451 452 /* Enter configuration mode */ 453 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 454 /* Read device ID and revision */ 455 devid = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_ID); 456 rev = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_REV); 457 /* Escape from configuration mode */ 458 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 459 460 if ((product = wbsio_lookup(devid, rev)) == NULL) { 461 aprint_error_dev(parent, "%s: Unknown device.\n", __func__); 462 return -1; 463 } 464 465 sc->sc_gpio_rt = false; 466 467 switch (product->id) { 468 case WBSIO_ID_NCT6779D: 469 wbsio_gpio_enable_nct6779d(parent); 470 sc->sc_gpio_rt = true; 471 break; 472 default: 473 aprint_error_dev(parent, "GPIO is not supported\n"); 474 return -1; 475 } 476 477 if (sc->sc_gpio_rt) { 478 if (wbsio_gpio_rt_init(sc) != 0) { 479 sc->sc_gpio_rt = false; 480 return -1; 481 } 482 sc->sc_gpio_gc.gp_cookie = sc; 483 sc->sc_gpio_gc.gp_pin_read = wbsio_gpio_rt_pin_read; 484 sc->sc_gpio_gc.gp_pin_write = wbsio_gpio_rt_pin_write; 485 sc->sc_gpio_gc.gp_pin_ctl = wbsio_gpio_rt_pin_ctl; 486 } else { 487 aprint_error_dev(parent, 488 "GPIO indirect access is not supported\n"); 489 return -1; 490 } 491 492 for (i = 0; i < WBSIO_GPIO_NPINS; i++) { 493 sc->sc_gpio_pins[i].pin_num = i; 494 sc->sc_gpio_pins[i].pin_caps = GPIO_PIN_INPUT | 495 GPIO_PIN_OUTPUT | GPIO_PIN_INVIN | GPIO_PIN_INVOUT; 496 497 /* safe defaults */ 498 sc->sc_gpio_pins[i].pin_flags = GPIO_PIN_INPUT; 499 sc->sc_gpio_pins[i].pin_state = GPIO_PIN_LOW; 500 sc->sc_gpio_gc.gp_pin_ctl(sc, i, sc->sc_gpio_pins[i].pin_flags); 501 sc->sc_gpio_gc.gp_pin_write(sc, i, sc->sc_gpio_pins[i].pin_state); 502 } 503 504 switch (product->id) { 505 case WBSIO_ID_NCT6779D: 506 wbsio_gpio_pinconfig_nct6779d(parent); 507 break; 508 } 509 510 gba.gba_gc = &sc->sc_gpio_gc; 511 gba.gba_pins = sc->sc_gpio_pins; 512 gba.gba_npins = WBSIO_GPIO_NPINS; 513 514 sc->sc_gpio_dev = config_attach(parent, cf, &gba, gpiobus_print); 515 516 return 0; 517 } 518 519 static int 520 wbsio_gpio_rt_init(struct wbsio_softc *sc) 521 { 522 uint16_t iobase; 523 uint8_t reg0, reg1; 524 525 /* Enter configuration mode */ 526 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 527 528 /* Get GPIO Register Table address */ 529 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_GPIO0); 530 reg0 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_GPIO_ADDR_LSB); 531 reg1 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_GPIO_ADDR_MSB); 532 iobase = (reg1 << 8) | (reg0 & ~0x7); 533 534 /* Escape from configuration mode */ 535 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 536 537 if (bus_space_map(sc->sc_iot, iobase, WBSIO_GPIO_IOSIZE, 538 0, &sc->sc_gpio_ioh)) { 539 aprint_error_dev(sc->sc_dev, 540 "can't map gpio to i/o space\n"); 541 return -1; 542 } 543 544 aprint_normal_dev(sc->sc_dev, "GPIO: port 0x%x-0x%x\n", 545 iobase, iobase + WBSIO_GPIO_IOSIZE); 546 547 mutex_init(&sc->sc_gpio_lock, MUTEX_DEFAULT, IPL_NONE); 548 549 return 0; 550 } 551 552 static int 553 wbsio_gpio_rt_read(struct wbsio_softc *sc, int port, int reg) 554 { 555 int v; 556 557 mutex_enter(&sc->sc_gpio_lock); 558 559 bus_space_write_1(sc->sc_iot, sc->sc_gpio_ioh, 560 WBSIO_GPIO_GSR, port); 561 v = bus_space_read_1(sc->sc_iot, sc->sc_gpio_ioh, reg); 562 563 mutex_exit(&sc->sc_gpio_lock); 564 565 return v; 566 } 567 568 static void 569 wbsio_gpio_rt_write(struct wbsio_softc *sc, int port, int reg, int value) 570 { 571 572 mutex_enter(&sc->sc_gpio_lock); 573 574 bus_space_write_1(sc->sc_iot, sc->sc_gpio_ioh, 575 WBSIO_GPIO_GSR, port); 576 bus_space_write_1(sc->sc_iot, sc->sc_gpio_ioh, 577 reg, value); 578 579 mutex_exit(&sc->sc_gpio_lock); 580 } 581 582 static int 583 wbsio_gpio_rt_pin_read(void *aux, int pin) 584 { 585 struct wbsio_softc *sc = (struct wbsio_softc *)aux; 586 int port, shift, data; 587 588 port = (pin >> 3) & 0x07; 589 shift = pin & 0x07; 590 591 data = wbsio_gpio_rt_read(sc, port, WBSIO_GPIO_DAT); 592 593 return ((data >> shift) & 0x01); 594 } 595 596 static void 597 wbsio_gpio_rt_pin_write(void *aux, int pin, int v) 598 { 599 struct wbsio_softc *sc = (struct wbsio_softc *)aux; 600 int port, shift, data; 601 602 port = (pin >> 3) & 0x07; 603 shift = pin & 0x07; 604 605 data = wbsio_gpio_rt_read(sc, port, WBSIO_GPIO_DAT); 606 607 if (v == 0) 608 data &= ~(1 << shift); 609 else if (v == 1) 610 data |= (1 << shift); 611 612 wbsio_gpio_rt_write(sc, port, WBSIO_GPIO_DAT, data); 613 } 614 615 static void 616 wbsio_gpio_rt_pin_ctl(void *aux, int pin, int flags) 617 { 618 struct wbsio_softc *sc = (struct wbsio_softc *)aux; 619 uint8_t ior, inv; 620 int port, shift; 621 622 port = (pin >> 3) & 0x07; 623 shift = pin & 0x07; 624 625 ior = wbsio_gpio_rt_read(sc, port, WBSIO_GPIO_IOR); 626 inv = wbsio_gpio_rt_read(sc, port, WBSIO_GPIO_INV); 627 628 if (flags & GPIO_PIN_INPUT) { 629 ior |= (1 << shift); 630 inv &= ~(1 << shift); 631 } else if (flags & GPIO_PIN_OUTPUT) { 632 ior &= ~(1 << shift); 633 inv &= ~(1 << shift); 634 } else if (flags & GPIO_PIN_INVIN) { 635 ior |= (1 << shift); 636 inv |= (1 << shift); 637 } else if (flags & GPIO_PIN_INVOUT) { 638 ior &= ~(1 << shift); 639 inv |= (1 << shift); 640 } 641 642 wbsio_gpio_rt_write(sc, port, WBSIO_GPIO_IOR, ior); 643 wbsio_gpio_rt_write(sc, port, WBSIO_GPIO_INV, inv); 644 } 645 646 static void 647 wbsio_gpio_enable_nct6779d(device_t parent) 648 { 649 struct wbsio_softc *sc = device_private(parent); 650 uint8_t reg, conf; 651 652 /* Enter configuration mode */ 653 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 654 655 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_GPIO0); 656 reg = WBSIO_GPIO_CONF; 657 conf = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, reg); 658 /* Activate Register Table access */ 659 conf |= WBSIO_GPIO_BASEADDR; 660 661 conf |= WBSIO_GPIO0_ENABLE; 662 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, reg, conf); 663 664 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_GPIO1); 665 reg = WBSIO_GPIO_CONF; 666 conf = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, reg); 667 conf |= WBSIO_GPIO1_ENABLE; 668 conf |= WBSIO_GPIO2_ENABLE; 669 conf |= WBSIO_GPIO3_ENABLE; 670 conf |= WBSIO_GPIO4_ENABLE; 671 conf |= WBSIO_GPIO5_ENABLE; 672 conf |= WBSIO_GPIO6_ENABLE; 673 conf |= WBSIO_GPIO7_ENABLE; 674 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, reg, conf); 675 676 /* Escape from configuration mode */ 677 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 678 } 679 680 static void 681 wbsio_gpio_pinconfig_nct6779d(device_t parent) 682 { 683 struct wbsio_softc *sc = device_private(parent); 684 uint8_t sfr, mfs0, mfs1, mfs2, mfs3; 685 uint8_t mfs4, mfs5, mfs6, gopt2, hm_conf; 686 687 /* Enter configuration mode */ 688 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 689 690 /* Strapping Function Result */ 691 sfr = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_SFR); 692 sfr &= ~(WBSIO_SFR_LPT | WBSIO_SFR_DSW | WBSIO_SFR_AMDPWR); 693 694 /* Read current configuration */ 695 mfs0 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_MFS0); 696 mfs1 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_MFS1); 697 mfs2 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_MFS2); 698 mfs3 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_MFS3); 699 mfs4 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_MFS4); 700 mfs5 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_MFS5); 701 mfs6 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_MFS6); 702 gopt2 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_GOPT2); 703 704 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_HM); 705 hm_conf = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_HM_CONF); 706 707 /* GPIO0 pin configs */ 708 mfs2 |= WBSIO_NCT6779D_MFS2_GP00; 709 mfs2 |= WBSIO_NCT6779D_MFS2_GP01; 710 mfs2 |= WBSIO_NCT6779D_MFS2_GP02; 711 mfs2 &= ~WBSIO_NCT6779D_MFS2_GP03_MASK; 712 mfs2 |= WBSIO_NCT6779D_MFS2_GP04; 713 mfs2 |= WBSIO_NCT6779D_MFS2_GP05; 714 mfs2 |= WBSIO_NCT6779D_MFS2_GP06; 715 mfs3 &= ~WBSIO_NCT6779D_MFS3_GP07_MASK; 716 717 /* GPIO1 pin configs */ 718 mfs4 |= WBSIO_NCT6779D_MFS4_GP10_GP17; 719 720 /* GPIO2 pin configs */ 721 mfs4 |= WBSIO_NCT6779D_MFS4_GP20_GP21; 722 mfs4 |= WBSIO_NCT6779D_MFS4_GP22_GP23; 723 mfs1 &= ~WBSIO_NCT6779D_MFS1_GP24_MASK; 724 gopt2 &= ~WBSIO_NCT6779D_GOPT2_GP24_MASK; 725 mfs4 &= ~WBSIO_NCT6779D_MFS4_GP25_MASK; 726 gopt2 &= ~WBSIO_NCT6779D_GOPT2_GP25_MASK; 727 mfs6 |= WBSIO_NCT6779D_MFS6_GP26; 728 mfs6 &= ~WBSIO_NCT6779D_MFS6_GP27_MASK; 729 730 /* GPIO3 pin configs */ 731 mfs0 &= ~WBSIO_NCT6779D_MFS0_GP30_MASK; 732 mfs0 |= WBSIO_NCT6779D_MFS0_GP30; 733 mfs1 &= ~WBSIO_NCT6779D_MFS1_GP31_MASK; 734 mfs0 |= WBSIO_NCT6779D_MFS0_GP31; 735 mfs1 &= ~WBSIO_NCT6779D_MFS1_GP32_MASK; 736 mfs0 |= WBSIO_NCT6779D_MFS0_GP32; 737 mfs6 &= ~WBSIO_NCT6779D_MFS6_GP33_MASK; 738 mfs6 |= WBSIO_NCT6779D_MFS6_GP33; 739 /* GP34, 35 and 36 are enabled by LPT_EN=0 */ 740 /* GP37 is not existed */ 741 742 /* GPIO4 pin configs */ 743 mfs1 |= WBSIO_NCT6779D_MFS1_GP40; 744 /* GP41 to GP46 requires LPT_EN=0 */ 745 mfs0 &= ~WBSIO_NCT6779D_MFS0_GP41_MASK; 746 mfs0 |= WBSIO_NCT6779D_MFS0_GP41; 747 mfs1 |= WBSIO_NCT6779D_MFS1_GP42; 748 mfs1 |= WBSIO_NCT6779D_MFS1_GP42; 749 gopt2 |= WBSIO_NCT6779D_GOPT2_GP43; 750 mfs1 &= ~WBSIO_NCT6779D_MFS1_GP44_GP45_MASK; 751 gopt2 &= ~WBSIO_NCT6779D_GOPT2_GP46_MASK; 752 mfs1 |= WBSIO_NCT6779D_MFS1_GP47; 753 754 /* GPIO5 pin configs */ 755 /* GP50 to GP55 requires DSW_EN=0 */ 756 hm_conf &= ~WBSIO_NCT6779D_HM_GP50_MASK; 757 /* GP51 is enabled by DSW_EN=0 */ 758 hm_conf &= ~WBSIO_NCT6779D_HM_GP52_MASK; 759 /* GP53 and GP54 are enabled by DSW_EN=0 */ 760 hm_conf &= ~WBSIO_NCT6779D_HM_GP55_MASK; 761 /* GP56 and GP57 are enabled by AMDPWR_EN=0 */ 762 763 /* GPIO6 pin configs are shared with GP43 */ 764 765 /* GPIO7 pin configs */ 766 /* GP70 to GP73 are enabled by TEST_MODE_EN */ 767 mfs5 |= WBSIO_NCT6779D_MFS5_GP74; 768 mfs5 |= WBSIO_NCT6779D_MFS5_GP75; 769 mfs5 |= WBSIO_NCT6779D_MFS5_GP76; 770 /* GP77 is not existed */ 771 772 /* Write all pin configs */ 773 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_SFR, sfr); 774 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_MFS0, mfs0); 775 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_MFS1, mfs1); 776 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_MFS2, mfs2); 777 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_MFS3, mfs3); 778 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_MFS4, mfs4); 779 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_MFS5, mfs5); 780 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_MFS6, mfs6); 781 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_GOPT2, gopt2); 782 783 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_HM); 784 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_HM_CONF, hm_conf); 785 786 /* Escape from configuration mode */ 787 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 788 } 789 790 #endif /* NGPIO > 0 */ 791 792 static void 793 wbsio_wdog_attach(device_t self) 794 { 795 struct wbsio_softc *sc = device_private(self); 796 const struct wbsio_product *product; 797 uint8_t gpio, mode; 798 uint16_t devid; 799 uint8_t rev; 800 801 sc->sc_smw_valid = false; 802 803 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 804 devid = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_ID); 805 rev = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_REV); 806 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 807 808 if ((product = wbsio_lookup(devid, rev)) == NULL) { 809 return; 810 } 811 812 switch (product->id) { 813 case WBSIO_ID_NCT6779D: 814 break; 815 default: 816 /* WDT is not supoorted */ 817 return; 818 } 819 820 wbsio_wdog_setcounter(sc, WBSIO_WDT_CNTR_STOP); 821 822 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 823 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_GPIO0); 824 825 gpio = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_GPIO_CONF); 826 mode = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_WDT_MODE); 827 828 gpio |= WBSIO_GPIO0_WDT1; 829 830 mode &= ~WBSIO_WDT_MODE_FASTER; 831 mode &= ~WBSIO_WDT_MODE_MINUTES; 832 mode &= ~WBSIO_WDT_MODE_KBCRST; 833 mode &= ~WBSIO_WDT_MODE_LEVEL; 834 835 /* initialize WDT mode */ 836 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_WDT_MODE, mode); 837 /* Activate WDT1 function */ 838 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_GPIO_CONF, gpio); 839 840 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 841 842 sc->sc_smw.smw_name = device_xname(self); 843 sc->sc_smw.smw_cookie = sc; 844 sc->sc_smw.smw_setmode = wbsio_wdog_setmode; 845 sc->sc_smw.smw_tickle = wbsio_wdog_tickle; 846 sc->sc_smw.smw_period = WBSIO_WDT_CNTR_MAX; 847 848 if (sysmon_wdog_register(&sc->sc_smw)) 849 aprint_error_dev(self, "couldn't register with sysmon\n"); 850 else 851 sc->sc_smw_valid = true; 852 } 853 854 static int 855 wbsio_wdog_detach(device_t self) 856 { 857 struct wbsio_softc *sc = device_private(self); 858 int error; 859 860 error = 0; 861 862 if (sc->sc_smw_valid) { 863 if ((sc->sc_smw.smw_mode & WDOG_MODE_MASK) 864 != WDOG_MODE_DISARMED) 865 return EBUSY; 866 867 error = sysmon_wdog_unregister(&sc->sc_smw); 868 } 869 870 if (!error) 871 sc->sc_smw_valid = false; 872 873 return error; 874 } 875 876 static int 877 wbsio_wdog_setmode(struct sysmon_wdog *smw) 878 { 879 880 switch(smw->smw_mode & WDOG_MODE_MASK) { 881 case WDOG_MODE_DISARMED: 882 wbsio_wdog_setcounter(smw->smw_cookie, WBSIO_WDT_CNTR_STOP); 883 wbsio_wdog_clear_timeout(smw->smw_cookie); 884 break; 885 default: 886 if (smw->smw_period > WBSIO_WDT_CNTR_MAX 887 || smw->smw_period == 0) 888 return EINVAL; 889 890 wbsio_wdog_setcounter(smw->smw_cookie, smw->smw_period); 891 } 892 893 return 0; 894 } 895 896 static void 897 wbsio_wdog_setcounter(struct wbsio_softc *sc, uint8_t period) 898 { 899 900 KASSERT(!mutex_owned(&sc->sc_conf_lock)); 901 902 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 903 904 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_GPIO0); 905 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_WDT_CNTR, period); 906 907 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_GPIO0); 908 909 910 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 911 } 912 913 static void 914 wbsio_wdog_clear_timeout(struct wbsio_softc *sc) 915 { 916 uint8_t st; 917 918 KASSERT(!mutex_owned(&sc->sc_conf_lock)); 919 920 wbsio_conf_enable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 921 922 st = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_WDT_STAT); 923 st &= ~WBSIO_WDT_STAT_TIMEOUT; 924 wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_WDT_STAT, st); 925 926 wbsio_conf_disable(&sc->sc_conf_lock, sc->sc_iot, sc->sc_ioh); 927 } 928 929 static int 930 wbsio_wdog_tickle(struct sysmon_wdog *smw) 931 { 932 933 wbsio_wdog_setcounter(smw->smw_cookie, smw->smw_period); 934 935 return 0; 936 } 937 938 939 MODULE(MODULE_CLASS_DRIVER, wbsio, NULL); 940 941 #ifdef _MODULE 942 #include "ioconf.c" 943 #endif 944 945 static int 946 wbsio_modcmd(modcmd_t cmd, void *opaque) 947 { 948 switch (cmd) { 949 case MODULE_CMD_INIT: 950 #ifdef _MODULE 951 return config_init_component(cfdriver_ioconf_wbsio, 952 cfattach_ioconf_wbsio, cfdata_ioconf_wbsio); 953 #else 954 return 0; 955 #endif 956 case MODULE_CMD_FINI: 957 #ifdef _MODULE 958 return config_fini_component(cfdriver_ioconf_wbsio, 959 cfattach_ioconf_wbsio, cfdata_ioconf_wbsio); 960 #else 961 return 0; 962 #endif 963 default: 964 return ENOTTY; 965 } 966 } 967
Indexes created Wed Oct 01 07:09:59 GMT 2025