1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2016-2023 Stormshield 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 AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, 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 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 33 #include <sys/bus.h> 34 #include <sys/eventhandler.h> 35 #include <sys/gpio.h> 36 #include <sys/kernel.h> 37 #include <sys/lock.h> 38 #include <sys/module.h> 39 #include <sys/mutex.h> 40 41 #include <machine/bus.h> 42 43 #include <dev/gpio/gpiobusvar.h> 44 #include <dev/superio/superio.h> 45 46 #include "gpio_if.h" 47 48 #define GPIO_LOCK_INIT(_sc) mtx_init(&(_sc)->mtx, \ 49 device_get_nameunit(dev), NULL, MTX_DEF) 50 #define GPIO_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx) 51 #define GPIO_LOCK(_sc) mtx_lock(&(_sc)->mtx) 52 #define GPIO_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx) 53 #define GPIO_ASSERT_LOCKED(_sc) mtx_assert(&(_sc)->mtx, MA_OWNED) 54 #define GPIO_ASSERT_UNLOCKED(_sc) mtx_assert(&(_sc)->mtx, MA_NOTOWNED) 55 56 /* Global register set */ 57 #define GPIO4_ENABLE 0x28 58 #define GPIO3_ENABLE 0x29 59 #define FULL_UR5_UR6 0x2A 60 #define GPIO1_ENABLE 0x2B 61 #define GPIO2_ENABLE 0x2C 62 63 /* Logical Device Numbers. */ 64 #define FTGPIO_LDN_GPIO 0x06 65 66 #define FTGPIO_MAX_GROUP 6 67 #define FTGPIO_MAX_PIN 52 68 69 #define FTGPIO_IS_VALID_PIN(_p) ((_p) >= 0 && (_p) <= FTGPIO_MAX_PIN) 70 #define FTGPIO_PIN_GETINDEX(_p) ((_p) & 7) 71 #define FTGPIO_PIN_GETGROUP(_p) ((_p) >> 3) 72 73 #define FTGPIO_GPIO_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT | GPIO_PIN_INVIN | \ 74 GPIO_PIN_INVOUT | GPIO_PIN_OPENDRAIN | GPIO_PIN_PUSHPULL) 75 76 #define GET_BIT(_v, _b) (((_v) >> (_b)) & 1) 77 78 #define FTGPIO_VERBOSE_PRINTF(dev, ...) \ 79 do { \ 80 if (__predict_false(bootverbose)) \ 81 device_printf(dev, __VA_ARGS__); \ 82 } while (0) 83 84 /* 85 * Note that the values are important. 86 * They match actual register offsets. 87 * See p71 and p72 of F81865's datasheet. 88 */ 89 #define REG_OUTPUT_ENABLE 0 /* Not for GPIO0 */ 90 #define REG_OUTPUT_DATA 1 91 #define REG_PIN_STATUS 2 92 #define REG_DRIVE_ENABLE 3 93 #define REG_MODE_SELECT_1 4 /* Only for GPIO0 */ 94 #define REG_MODE_SELECT_2 5 /* Only for GPIO0 */ 95 #define REG_PULSE_WIDTH_SELECT_1 6 /* Only for GPIO0 */ 96 #define REG_PULSE_WIDTH_SELECT_2 7 /* Only for GPIO0 */ 97 #define REG_INTERRUPT_ENABLE 8 /* Only for GPIO0 */ 98 #define REG_INTERRUPT_STATUS 9 /* Only for GPIO0 */ 99 100 struct ftgpio_device { 101 uint16_t devid; 102 const char *descr; 103 } ftgpio_devices[] = { 104 { 105 .devid = 0x0704, 106 .descr = "Fintek F81865", 107 }, 108 }; 109 110 struct ftgpio_softc { 111 device_t dev; 112 device_t busdev; 113 struct mtx mtx; 114 struct gpio_pin pins[FTGPIO_MAX_PIN + 1]; 115 }; 116 117 static uint8_t 118 ftgpio_group_get_ioreg(struct ftgpio_softc *sc, uint8_t reg, unsigned group) 119 { 120 uint8_t ioreg; 121 122 KASSERT((group == 0 && REG_OUTPUT_DATA <= reg && reg <= REG_INTERRUPT_STATUS) || \ 123 (group >= 1 && reg <= REG_DRIVE_ENABLE), 124 ("%s: invalid register %u for group %u", __func__, reg, group)); 125 ioreg = (((0xf - group) << 4) + reg); 126 return (ioreg); 127 } 128 129 static uint8_t 130 ftgpio_group_get_output(struct ftgpio_softc *sc, unsigned group) 131 { 132 uint8_t ioreg, val; 133 134 ioreg = ftgpio_group_get_ioreg(sc, REG_OUTPUT_DATA, group); 135 val = superio_read(sc->dev, ioreg); 136 FTGPIO_VERBOSE_PRINTF(sc->dev, "group GPIO%u output is 0x%x (ioreg=0x%x)\n", 137 group, val, ioreg); 138 return (val); 139 } 140 141 static void 142 ftgpio_group_set_output(struct ftgpio_softc *sc, unsigned group, uint8_t group_value) 143 { 144 uint8_t ioreg; 145 146 ioreg = ftgpio_group_get_ioreg(sc, REG_OUTPUT_DATA, group); 147 superio_write(sc->dev, ioreg, group_value); 148 FTGPIO_VERBOSE_PRINTF(sc->dev, "set group GPIO%u output to 0x%x (ioreg=0x%x)\n", 149 group, group_value, ioreg); 150 } 151 152 static uint8_t 153 ftgpio_group_get_status(struct ftgpio_softc *sc, unsigned group) 154 { 155 uint8_t ioreg; 156 157 ioreg = ftgpio_group_get_ioreg(sc, REG_PIN_STATUS, group); 158 return (superio_read(sc->dev, ioreg)); 159 } 160 161 static void 162 ftgpio_pin_write(struct ftgpio_softc *sc, uint32_t pin_num, bool pin_value) 163 { 164 uint32_t pin_flags; 165 uint8_t val; 166 unsigned group, index; 167 168 GPIO_ASSERT_LOCKED(sc); 169 index = FTGPIO_PIN_GETINDEX(pin_num); 170 group = FTGPIO_PIN_GETGROUP(pin_num); 171 pin_flags = sc->pins[pin_num].gp_flags; 172 if ((pin_flags & (GPIO_PIN_OUTPUT)) == 0) { 173 FTGPIO_VERBOSE_PRINTF(sc->dev, "pin %u<GPIO%u%u> is not configured for output\n", 174 pin_num, group, index); 175 return; 176 } 177 178 FTGPIO_VERBOSE_PRINTF(sc->dev, "set pin %u<GPIO%u%u> to %s\n", 179 pin_num, group, index, (pin_value ? "on" : "off")); 180 181 val = ftgpio_group_get_output(sc, group); 182 if (!pin_value != !(pin_flags & GPIO_PIN_INVOUT)) 183 val |= (1 << index); 184 else 185 val &= ~(1 << index); 186 ftgpio_group_set_output(sc, group, val); 187 } 188 189 static bool 190 ftgpio_pin_read(struct ftgpio_softc *sc, uint32_t pin_num) 191 { 192 uint32_t pin_flags; 193 unsigned group, index; 194 uint8_t val; 195 bool pin_value; 196 197 GPIO_ASSERT_LOCKED(sc); 198 group = FTGPIO_PIN_GETGROUP(pin_num); 199 index = FTGPIO_PIN_GETINDEX(pin_num); 200 pin_flags = sc->pins[pin_num].gp_flags; 201 if ((pin_flags & (GPIO_PIN_OUTPUT | GPIO_PIN_INPUT)) == 0) { 202 FTGPIO_VERBOSE_PRINTF(sc->dev, "pin %u<GPIO%u%u> is not configured for input or output\n", 203 pin_num, group, index); 204 return (false); 205 } 206 207 if (pin_flags & GPIO_PIN_OUTPUT) 208 val = ftgpio_group_get_output(sc, group); 209 else 210 val = ftgpio_group_get_status(sc, group); 211 pin_value = GET_BIT(val, index); 212 213 if (((pin_flags & (GPIO_PIN_OUTPUT|GPIO_PIN_INVOUT)) == (GPIO_PIN_OUTPUT|GPIO_PIN_INVOUT)) || 214 ((pin_flags & (GPIO_PIN_INPUT |GPIO_PIN_INVIN )) == (GPIO_PIN_INPUT |GPIO_PIN_INVIN))) 215 pin_value = !pin_value; 216 FTGPIO_VERBOSE_PRINTF(sc->dev, "pin %u<GPIO%u%u> is %s\n", 217 pin_num, group, index, (pin_value ? "on" : "off")); 218 219 return (pin_value); 220 } 221 222 static void 223 ftgpio_pin_set_drive(struct ftgpio_softc *sc, uint32_t pin_num, bool pin_drive) 224 { 225 unsigned group, index; 226 uint8_t group_drive, ioreg; 227 228 index = FTGPIO_PIN_GETINDEX(pin_num); 229 group = FTGPIO_PIN_GETGROUP(pin_num); 230 ioreg = ftgpio_group_get_ioreg(sc, REG_DRIVE_ENABLE, group); 231 group_drive = superio_read(sc->dev, ioreg); 232 FTGPIO_VERBOSE_PRINTF(sc->dev, "group GPIO%u drive is 0x%x (ioreg=0x%x)\n", 233 group, group_drive, ioreg); 234 235 if (pin_drive) 236 group_drive |= (1 << index); /* push pull */ 237 else 238 group_drive &= ~(1 << index); /* open drain */ 239 superio_write(sc->dev, ioreg, group_drive); 240 } 241 242 static bool 243 ftgpio_pin_is_pushpull(struct ftgpio_softc *sc, uint32_t pin_num) 244 { 245 unsigned group, index; 246 uint8_t group_drive, ioreg; 247 bool is_pushpull; 248 249 index = FTGPIO_PIN_GETINDEX(pin_num); 250 group = FTGPIO_PIN_GETGROUP(pin_num); 251 252 ioreg = ftgpio_group_get_ioreg(sc, REG_DRIVE_ENABLE, group); 253 group_drive = superio_read(sc->dev, ioreg); 254 FTGPIO_VERBOSE_PRINTF(sc->dev, "group GPIO%u drive is 0x%x (ioreg=0x%x)\n", 255 group, group_drive, ioreg); 256 257 is_pushpull = group_drive & (1 << index); 258 FTGPIO_VERBOSE_PRINTF(sc->dev, "pin %u<GPIO%u%u> drive is %s\n", 259 pin_num, group, index, (is_pushpull ? "pushpull" : "opendrain")); 260 261 return (is_pushpull); 262 } 263 264 static void 265 ftgpio_pin_set_io(struct ftgpio_softc *sc, uint32_t pin_num, bool pin_io) 266 { 267 unsigned group, index; 268 uint8_t group_io, ioreg; 269 270 index = FTGPIO_PIN_GETINDEX(pin_num); 271 group = FTGPIO_PIN_GETGROUP(pin_num); 272 FTGPIO_VERBOSE_PRINTF(sc->dev, "set pin %u<GPIO%u%u> io to %s\n", 273 pin_num, group, index, (pin_io ? "output" : "input")); 274 275 ioreg = ftgpio_group_get_ioreg(sc, REG_OUTPUT_ENABLE, group); 276 group_io = superio_read(sc->dev, ioreg); 277 FTGPIO_VERBOSE_PRINTF(sc->dev, "group GPIO%u io is 0x%x (ioreg=0x%x)\n", 278 group, group_io, ioreg); 279 if (pin_io) 280 group_io |= (1 << index); /* output */ 281 else 282 group_io &= ~(1 << index); /* input */ 283 superio_write(sc->dev, ioreg, group_io); 284 FTGPIO_VERBOSE_PRINTF(sc->dev, "set group GPIO%u io to 0x%x (ioreg=0x%x)\n", 285 group, group_io, ioreg); 286 } 287 288 static bool 289 ftgpio_pin_is_output(struct ftgpio_softc *sc, uint32_t pin_num) 290 { 291 unsigned group, index; 292 bool is_output; 293 294 index = FTGPIO_PIN_GETINDEX(pin_num); 295 group = FTGPIO_PIN_GETGROUP(pin_num); 296 297 is_output = ftgpio_group_get_status(sc, group) & (1 << index); 298 FTGPIO_VERBOSE_PRINTF(sc->dev, "pin %u<GPIO%u%u> io is %s\n", 299 pin_num, group, index, (is_output ? "output" : "input")); 300 return (is_output); 301 } 302 303 static int 304 ftgpio_pin_setflags(struct ftgpio_softc *sc, uint32_t pin_num, uint32_t pin_flags) 305 { 306 /* check flags consistency */ 307 if ((pin_flags & (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT)) == 308 (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT)) 309 return (EINVAL); 310 311 if ((pin_flags & (GPIO_PIN_OPENDRAIN | GPIO_PIN_PUSHPULL)) == 312 (GPIO_PIN_OPENDRAIN | GPIO_PIN_PUSHPULL)) 313 return (EINVAL); 314 315 if (pin_flags & GPIO_PIN_OPENDRAIN) 316 ftgpio_pin_set_drive(sc, pin_num, 0 /* open drain */); 317 else if (pin_flags & GPIO_PIN_PUSHPULL) 318 ftgpio_pin_set_drive(sc, pin_num, 1 /* push pull */); 319 320 if (pin_flags & GPIO_PIN_INPUT) 321 ftgpio_pin_set_io(sc, pin_num, 0 /* input */); 322 else if (pin_flags & GPIO_PIN_OUTPUT) 323 ftgpio_pin_set_io(sc, pin_num, 1 /* output */); 324 325 sc->pins[pin_num].gp_flags = pin_flags; 326 327 return (0); 328 } 329 330 static int 331 ftgpio_probe(device_t dev) 332 { 333 uint16_t devid; 334 int i; 335 336 if (superio_vendor(dev) != SUPERIO_VENDOR_FINTEK) 337 return (ENXIO); 338 if (superio_get_type(dev) != SUPERIO_DEV_GPIO) 339 return (ENXIO); 340 341 /* 342 * There are several GPIO devices, we attach only to one of them 343 * and use the rest without attaching. 344 */ 345 if (superio_get_ldn(dev) != FTGPIO_LDN_GPIO) 346 return (ENXIO); 347 348 devid = superio_devid(dev); 349 for (i = 0; i < nitems(ftgpio_devices); i++) { 350 if (devid == ftgpio_devices[i].devid) { 351 device_set_desc(dev, ftgpio_devices[i].descr); 352 return (BUS_PROBE_DEFAULT); 353 } 354 } 355 return (ENXIO); 356 } 357 358 static int 359 ftgpio_attach(device_t dev) 360 { 361 struct ftgpio_softc *sc; 362 int i; 363 364 sc = device_get_softc(dev); 365 sc->dev = dev; 366 367 GPIO_LOCK_INIT(sc); 368 GPIO_LOCK(sc); 369 370 for (i = 0; i <= FTGPIO_MAX_PIN; i++) { 371 struct gpio_pin *pin; 372 373 pin = &sc->pins[i]; 374 pin->gp_pin = i; 375 pin->gp_caps = FTGPIO_GPIO_CAPS; 376 pin->gp_flags = 0; 377 378 if (ftgpio_pin_is_output(sc, i)) 379 pin->gp_flags |= GPIO_PIN_OUTPUT; 380 else 381 pin->gp_flags |= GPIO_PIN_INPUT; 382 383 if (ftgpio_pin_is_pushpull(sc, i)) 384 pin->gp_flags |= GPIO_PIN_PUSHPULL; 385 else 386 pin->gp_flags |= GPIO_PIN_OPENDRAIN; 387 388 snprintf(pin->gp_name, GPIOMAXNAME, "GPIO%u%u", 389 FTGPIO_PIN_GETGROUP(i), FTGPIO_PIN_GETINDEX(i)); 390 } 391 392 /* Enable all groups */ 393 superio_write(sc->dev, GPIO1_ENABLE, 0xFF); 394 superio_write(sc->dev, GPIO2_ENABLE, 0xFF); 395 superio_write(sc->dev, GPIO3_ENABLE, 0xFF); 396 superio_write(sc->dev, GPIO4_ENABLE, 0xFF); 397 superio_write(sc->dev, FULL_UR5_UR6, 0x0A); 398 FTGPIO_VERBOSE_PRINTF(sc->dev, "groups GPIO1..GPIO6 enabled\n"); 399 400 GPIO_UNLOCK(sc); 401 sc->busdev = gpiobus_attach_bus(dev); 402 if (sc->busdev == NULL) { 403 GPIO_LOCK_DESTROY(sc); 404 return (ENXIO); 405 } 406 407 return (0); 408 } 409 410 static int 411 ftgpio_detach(device_t dev) 412 { 413 struct ftgpio_softc *sc; 414 415 sc = device_get_softc(dev); 416 gpiobus_detach_bus(dev); 417 GPIO_ASSERT_UNLOCKED(sc); 418 GPIO_LOCK_DESTROY(sc); 419 420 return (0); 421 } 422 423 static device_t 424 ftgpio_gpio_get_bus(device_t dev) 425 { 426 struct ftgpio_softc *sc; 427 428 sc = device_get_softc(dev); 429 430 return (sc->busdev); 431 } 432 433 static int 434 ftgpio_gpio_pin_max(device_t dev, int *npins) 435 { 436 *npins = FTGPIO_MAX_PIN; 437 return (0); 438 } 439 440 static int 441 ftgpio_gpio_pin_set(device_t dev, uint32_t pin_num, uint32_t pin_value) 442 { 443 struct ftgpio_softc *sc; 444 445 if (!FTGPIO_IS_VALID_PIN(pin_num)) 446 return (EINVAL); 447 448 sc = device_get_softc(dev); 449 GPIO_LOCK(sc); 450 if ((sc->pins[pin_num].gp_flags & GPIO_PIN_OUTPUT) == 0) { 451 GPIO_UNLOCK(sc); 452 return (EINVAL); 453 } 454 ftgpio_pin_write(sc, pin_num, pin_value); 455 GPIO_UNLOCK(sc); 456 457 return (0); 458 } 459 460 static int 461 ftgpio_gpio_pin_get(device_t dev, uint32_t pin_num, uint32_t *pin_value) 462 { 463 struct ftgpio_softc *sc; 464 465 if (!FTGPIO_IS_VALID_PIN(pin_num)) 466 return (EINVAL); 467 468 if (pin_value == NULL) 469 return (EINVAL); 470 471 sc = device_get_softc(dev); 472 GPIO_LOCK(sc); 473 *pin_value = ftgpio_pin_read(sc, pin_num); 474 GPIO_UNLOCK(sc); 475 476 return (0); 477 } 478 479 static int 480 ftgpio_gpio_pin_toggle(device_t dev, uint32_t pin_num) 481 { 482 struct ftgpio_softc *sc; 483 bool pin_value; 484 485 if (!FTGPIO_IS_VALID_PIN(pin_num)) 486 return (EINVAL); 487 488 sc = device_get_softc(dev); 489 GPIO_LOCK(sc); 490 pin_value = ftgpio_pin_read(sc, pin_num); 491 ftgpio_pin_write(sc, pin_num, !pin_value); 492 GPIO_UNLOCK(sc); 493 494 return (0); 495 } 496 497 static int 498 ftgpio_gpio_pin_getname(device_t dev, uint32_t pin_num, char *pin_name) 499 { 500 struct ftgpio_softc *sc; 501 502 if (pin_name == NULL) 503 return (EINVAL); 504 505 if (!FTGPIO_IS_VALID_PIN(pin_num)) 506 return (EINVAL); 507 508 sc = device_get_softc(dev); 509 strlcpy(pin_name, sc->pins[pin_num].gp_name, GPIOMAXNAME); 510 511 return (0); 512 } 513 514 static int 515 ftgpio_gpio_pin_getcaps(device_t dev, uint32_t pin_num, uint32_t *pin_caps) 516 { 517 struct ftgpio_softc *sc; 518 519 if (pin_caps == NULL) 520 return (EINVAL); 521 522 if (!FTGPIO_IS_VALID_PIN(pin_num)) 523 return (EINVAL); 524 525 sc = device_get_softc(dev); 526 *pin_caps = sc->pins[pin_num].gp_caps; 527 528 return (0); 529 } 530 531 static int 532 ftgpio_gpio_pin_getflags(device_t dev, uint32_t pin_num, uint32_t *pin_flags) 533 { 534 struct ftgpio_softc *sc; 535 536 if (pin_flags == NULL) 537 return (EINVAL); 538 539 if (!FTGPIO_IS_VALID_PIN(pin_num)) 540 return (EINVAL); 541 542 sc = device_get_softc(dev); 543 *pin_flags = sc->pins[pin_num].gp_flags; 544 545 return (0); 546 } 547 548 static int 549 ftgpio_gpio_pin_setflags(device_t dev, uint32_t pin_num, uint32_t pin_flags) 550 { 551 struct ftgpio_softc *sc; 552 int ret; 553 554 if (!FTGPIO_IS_VALID_PIN(pin_num)) { 555 FTGPIO_VERBOSE_PRINTF(dev, "invalid pin number: %u\n", pin_num); 556 return (EINVAL); 557 } 558 559 sc = device_get_softc(dev); 560 561 /* Check for unwanted flags. */ 562 if ((pin_flags & sc->pins[pin_num].gp_caps) != pin_flags) { 563 FTGPIO_VERBOSE_PRINTF(dev, "invalid pin flags 0x%x, vs caps 0x%x\n", 564 pin_flags, sc->pins[pin_num].gp_caps); 565 return (EINVAL); 566 } 567 568 GPIO_LOCK(sc); 569 ret = ftgpio_pin_setflags(sc, pin_num, pin_flags); 570 GPIO_UNLOCK(sc); 571 572 return (ret); 573 } 574 575 static device_method_t ftgpio_methods[] = { 576 /* Device interface */ 577 DEVMETHOD(device_probe, ftgpio_probe), 578 DEVMETHOD(device_attach, ftgpio_attach), 579 DEVMETHOD(device_detach, ftgpio_detach), 580 581 /* GPIO */ 582 DEVMETHOD(gpio_get_bus, ftgpio_gpio_get_bus), 583 DEVMETHOD(gpio_pin_max, ftgpio_gpio_pin_max), 584 DEVMETHOD(gpio_pin_set, ftgpio_gpio_pin_set), 585 DEVMETHOD(gpio_pin_get, ftgpio_gpio_pin_get), 586 DEVMETHOD(gpio_pin_toggle, ftgpio_gpio_pin_toggle), 587 DEVMETHOD(gpio_pin_getname, ftgpio_gpio_pin_getname), 588 DEVMETHOD(gpio_pin_getcaps, ftgpio_gpio_pin_getcaps), 589 DEVMETHOD(gpio_pin_getflags, ftgpio_gpio_pin_getflags), 590 DEVMETHOD(gpio_pin_setflags, ftgpio_gpio_pin_setflags), 591 592 DEVMETHOD_END 593 }; 594 595 static driver_t ftgpio_driver = { 596 "gpio", 597 ftgpio_methods, 598 sizeof(struct ftgpio_softc) 599 }; 600 601 DRIVER_MODULE(ftgpio, superio, ftgpio_driver, NULL, NULL); 602 MODULE_DEPEND(ftgpio, gpiobus, 1, 1, 1); 603 MODULE_DEPEND(ftgpio, superio, 1, 1, 1); 604 MODULE_VERSION(ftgpio, 1); 605