1 /*-
2 * Copyright (c) 2010-2011, Aleksandr Rybalko <ray@ddteam.net>
3 * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
4 * Copyright (c) 2009, Luiz Otavio O Souza.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
12 * disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*
31 * GPIO driver for RT305X SoC.
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD: stable/9/sys/mips/rt305x/rt305x_gpio.c 249550 2013-04-16 16:35:48Z dim $");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/bus.h>
40
41 #include <sys/kernel.h>
42 #include <sys/module.h>
43 #include <sys/rman.h>
44 #include <sys/lock.h>
45 #include <sys/mutex.h>
46 #include <sys/gpio.h>
47
48 #include <machine/bus.h>
49 #include <machine/resource.h>
50 #include <mips/rt305x/rt305xreg.h>
51 #include <mips/rt305x/rt305x_gpio.h>
52 #include <mips/rt305x/rt305x_gpiovar.h>
53 #include <mips/rt305x/rt305x_sysctlvar.h>
54
55 #include "gpio_if.h"
56
57 #ifdef notyet
58 #define DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT | GPIO_PIN_INVIN | \
59 GPIO_PIN_INVOUT | GPIO_PIN_REPORT )
60 #else
61 #define DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT | GPIO_PIN_INVIN | \
62 GPIO_PIN_INVOUT )
63 #endif
64
65 /*
66 * Helpers
67 */
68 static void rt305x_gpio_pin_configure(struct rt305x_gpio_softc *sc,
69 struct gpio_pin *pin, uint32_t flags);
70
71 /*
72 * Driver stuff
73 */
74 static int rt305x_gpio_probe(device_t dev);
75 static int rt305x_gpio_attach(device_t dev);
76 static int rt305x_gpio_detach(device_t dev);
77 static int rt305x_gpio_intr(void *arg);
78
79 int rt305x_get_int_mask (device_t);
80 void rt305x_set_int_mask (device_t, uint32_t);
81 int rt305x_get_int_status(device_t);
82 void rt305x_set_int_status(device_t, uint32_t);
83
84 /*
85 * GPIO interface
86 */
87 static int rt305x_gpio_pin_max(device_t dev, int *maxpin);
88 static int rt305x_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps);
89 static int rt305x_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t
90 *flags);
91 static int rt305x_gpio_pin_getname(device_t dev, uint32_t pin, char *name);
92 static int rt305x_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags);
93 static int rt305x_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value);
94 static int rt305x_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val);
95 static int rt305x_gpio_pin_toggle(device_t dev, uint32_t pin);
96
97 static void
rt305x_gpio_pin_configure(struct rt305x_gpio_softc * sc,struct gpio_pin * pin,unsigned int flags)98 rt305x_gpio_pin_configure(struct rt305x_gpio_softc *sc, struct gpio_pin *pin,
99 unsigned int flags)
100 {
101 GPIO_LOCK(sc);
102
103 /*
104 * Manage input/output
105 */
106 if (flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) {
107 pin->gp_flags &= ~(GPIO_PIN_INPUT|GPIO_PIN_OUTPUT);
108 if (flags & GPIO_PIN_OUTPUT) {
109 pin->gp_flags |= GPIO_PIN_OUTPUT;
110 GPIO_BIT_SET(sc, pin->gp_pin, DIR);
111 }
112 else {
113 pin->gp_flags |= GPIO_PIN_INPUT;
114 GPIO_BIT_CLR(sc, pin->gp_pin, DIR);
115 }
116 }
117
118 if (flags & GPIO_PIN_INVOUT) {
119 pin->gp_flags |= GPIO_PIN_INVOUT;
120 GPIO_BIT_SET(sc, pin->gp_pin, POL);
121 }
122 else {
123 pin->gp_flags &= ~GPIO_PIN_INVOUT;
124 GPIO_BIT_CLR(sc, pin->gp_pin, POL);
125 }
126
127 if (flags & GPIO_PIN_INVIN) {
128 pin->gp_flags |= GPIO_PIN_INVIN;
129 GPIO_BIT_SET(sc, pin->gp_pin, POL);
130 }
131 else {
132 pin->gp_flags &= ~GPIO_PIN_INVIN;
133 GPIO_BIT_CLR(sc, pin->gp_pin, POL);
134 }
135
136 #ifdef notyet
137 /* Enable interrupt bits for rising/falling transitions */
138 if (flags & GPIO_PIN_REPORT) {
139 pin->gp_flags |= GPIO_PIN_REPORT;
140 GPIO_BIT_SET(sc, pin->gp_pin, RENA);
141 GPIO_BIT_SET(sc, pin->gp_pin, FENA);
142 device_printf(sc->dev, "Will report interrupt on pin %d\n",
143 pin->gp_pin);
144
145 }
146 else {
147 pin->gp_flags &= ~GPIO_PIN_REPORT;
148 GPIO_BIT_CLR(sc, pin->gp_pin, RENA);
149 GPIO_BIT_CLR(sc, pin->gp_pin, FENA);
150 }
151 #else
152 /* Disable generating interrupts for now */
153 GPIO_BIT_CLR(sc, pin->gp_pin, RENA);
154 GPIO_BIT_CLR(sc, pin->gp_pin, FENA);
155 #endif
156
157 GPIO_UNLOCK(sc);
158 }
159
160 static int
rt305x_gpio_pin_max(device_t dev,int * maxpin)161 rt305x_gpio_pin_max(device_t dev, int *maxpin)
162 {
163
164 *maxpin = NGPIO - 1;
165 return (0);
166 }
167
168 static int
rt305x_gpio_pin_getcaps(device_t dev,uint32_t pin,uint32_t * caps)169 rt305x_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
170 {
171 struct rt305x_gpio_softc *sc = device_get_softc(dev);
172 int i;
173
174 for (i = 0; i < sc->gpio_npins; i++) {
175 if (sc->gpio_pins[i].gp_pin == pin)
176 break;
177 }
178
179 if (i >= sc->gpio_npins)
180 return (EINVAL);
181
182 GPIO_LOCK(sc);
183 *caps = sc->gpio_pins[i].gp_caps;
184 GPIO_UNLOCK(sc);
185
186 return (0);
187 }
188
189 static int
rt305x_gpio_pin_getflags(device_t dev,uint32_t pin,uint32_t * flags)190 rt305x_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
191 {
192 struct rt305x_gpio_softc *sc = device_get_softc(dev);
193 int i;
194
195 for (i = 0; i < sc->gpio_npins; i++) {
196 if (sc->gpio_pins[i].gp_pin == pin)
197 break;
198 }
199
200 if (i >= sc->gpio_npins)
201 return (EINVAL);
202
203 GPIO_LOCK(sc);
204 *flags = sc->gpio_pins[i].gp_flags;
205 GPIO_UNLOCK(sc);
206
207 return (0);
208 }
209
210 static int
rt305x_gpio_pin_getname(device_t dev,uint32_t pin,char * name)211 rt305x_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
212 {
213 struct rt305x_gpio_softc *sc = device_get_softc(dev);
214 int i;
215
216 for (i = 0; i < sc->gpio_npins; i++) {
217 if (sc->gpio_pins[i].gp_pin == pin)
218 break;
219 }
220
221 if (i >= sc->gpio_npins)
222 return (EINVAL);
223
224 GPIO_LOCK(sc);
225 memcpy(name, sc->gpio_pins[i].gp_name, GPIOMAXNAME);
226 GPIO_UNLOCK(sc);
227
228 return (0);
229 }
230
231 static int
rt305x_gpio_pin_setflags(device_t dev,uint32_t pin,uint32_t flags)232 rt305x_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
233 {
234 int i;
235 struct rt305x_gpio_softc *sc = device_get_softc(dev);
236
237 for (i = 0; i < sc->gpio_npins; i++) {
238 if (sc->gpio_pins[i].gp_pin == pin)
239 break;
240 }
241
242 if (i >= sc->gpio_npins)
243 return (EINVAL);
244
245 /* Check for unwanted flags. */
246 if ((flags & sc->gpio_pins[i].gp_caps) != flags)
247 return (EINVAL);
248
249 /* Can't mix input/output together */
250 if ((flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) ==
251 (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT))
252 return (EINVAL);
253
254 rt305x_gpio_pin_configure(sc, &sc->gpio_pins[i], flags);
255
256
257 return (0);
258 }
259
260 static int
rt305x_gpio_pin_set(device_t dev,uint32_t pin,unsigned int value)261 rt305x_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value)
262 {
263 struct rt305x_gpio_softc *sc = device_get_softc(dev);
264 int i;
265
266 for (i = 0; i < sc->gpio_npins; i++) {
267 if (sc->gpio_pins[i].gp_pin == pin)
268 break;
269 }
270
271 if (i >= sc->gpio_npins)
272 return (EINVAL);
273
274
275 GPIO_LOCK(sc);
276 if (value) GPIO_BIT_SET(sc, i, DATA);
277 else GPIO_BIT_CLR(sc, i, DATA);
278 GPIO_UNLOCK(sc);
279
280 return (0);
281 }
282
283 static int
rt305x_gpio_pin_get(device_t dev,uint32_t pin,unsigned int * val)284 rt305x_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
285 {
286 struct rt305x_gpio_softc *sc = device_get_softc(dev);
287 int i;
288
289 for (i = 0; i < sc->gpio_npins; i++) {
290 if (sc->gpio_pins[i].gp_pin == pin)
291 break;
292 }
293
294 if (i >= sc->gpio_npins)
295 return (EINVAL);
296
297 GPIO_LOCK(sc);
298 *val = GPIO_BIT_GET(sc, i, DATA);
299 GPIO_UNLOCK(sc);
300
301 return (0);
302 }
303
304 static int
rt305x_gpio_pin_toggle(device_t dev,uint32_t pin)305 rt305x_gpio_pin_toggle(device_t dev, uint32_t pin)
306 {
307 int i;
308 struct rt305x_gpio_softc *sc = device_get_softc(dev);
309
310 for (i = 0; i < sc->gpio_npins; i++) {
311 if (sc->gpio_pins[i].gp_pin == pin)
312 break;
313 }
314
315 if (i >= sc->gpio_npins)
316 return (EINVAL);
317
318 GPIO_LOCK(sc);
319 GPIO_BIT_SET(sc, i, TOG);
320 GPIO_UNLOCK(sc);
321
322 return (0);
323 }
324
325 static int
rt305x_gpio_intr(void * arg)326 rt305x_gpio_intr(void *arg)
327 {
328 struct rt305x_gpio_softc *sc = arg;
329 #ifdef notyet
330 uint32_t i;
331 #endif
332 uint64_t input, value;
333 #ifdef notyet
334 uint64_t reset_pin;
335 char notify[16];
336 char pinname[6];
337 #endif
338
339 /* Read all reported pins */
340 input = GPIO_READ_ALL(sc, INT);
341 /* Clear int status */
342 GPIO_WRITE_ALL(sc, INT, input);
343 /* Clear report for OUTs */
344 input &= ~GPIO_READ_ALL(sc, DIR);
345 value = input & GPIO_READ_ALL(sc, DATA);
346
347 if (!input) goto intr_done;
348
349 #ifdef notyet
350 /* if reset_gpio and this pin is input */
351 if (sc->reset_gpio >= 0 && (input & (1 << sc->reset_gpio))) {
352 /* get reset_gpio pin value */
353 reset_pin = (value & (1 << sc->reset_gpio))?1:0;
354 if ( sc->reset_gpio_last != reset_pin ) {
355 /*
356 * if now reset is high, check how long
357 * and do reset if less than 2 seconds
358 */
359 if ( reset_pin &&
360 (time_uptime - sc->reset_gpio_ontime) < 2 )
361 shutdown_nice(0);
362
363 sc->reset_gpio_last = reset_pin;
364 sc->reset_gpio_ontime = time_uptime;
365 }
366 }
367
368 for ( i = 0; i < NGPIO; i ++ )
369 {
370 /* Next if output pin */
371 if ( !(( input >> i) & 1) ) continue;
372
373 if ( (((value & input) >> i) & 1) != sc->gpio_pins[i].gp_last )
374 {
375 /* !system=GPIO subsystem=pin7 type=PIN_HIGH period=3 */
376 snprintf(notify , sizeof(notify ), "period=%d",
377 (uint32_t)time_uptime - sc->gpio_pins[i].gp_time);
378 snprintf(pinname, sizeof(pinname), "pin%02d", i);
379 devctl_notify("GPIO", pinname,
380 (((value & input) >> i) & 1)?"PIN_HIGH":"PIN_LOW",
381 notify);
382 printf("GPIO[%s] %s %s\n", pinname,
383 (((value & input) >> i) & 1)?"PIN_HIGH":"PIN_LOW",
384 notify);
385 sc->gpio_pins[i].gp_last = ((value & input) >> i) & 1;
386 sc->gpio_pins[i].gp_time = time_uptime;
387 }
388
389 }
390 #endif
391
392 intr_done:
393 return (FILTER_HANDLED);
394 }
395
396 static int
rt305x_gpio_probe(device_t dev)397 rt305x_gpio_probe(device_t dev)
398 {
399 device_set_desc(dev, "RT305X GPIO driver");
400 return (0);
401 }
402
403 static uint64_t
rt305x_gpio_init(device_t dev)404 rt305x_gpio_init(device_t dev)
405 {
406 uint64_t avl = ~0ULL;
407 uint32_t gmode = rt305x_sysctl_get(SYSCTL_GPIOMODE);
408 if (!(gmode & SYSCTL_GPIOMODE_RGMII_GPIO_MODE))
409 avl &= ~RGMII_GPIO_MODE_MASK;
410 if (!(gmode & SYSCTL_GPIOMODE_SDRAM_GPIO_MODE))
411 avl &= ~SDRAM_GPIO_MODE_MASK;
412 if (!(gmode & SYSCTL_GPIOMODE_MDIO_GPIO_MODE))
413 avl &= ~MDIO_GPIO_MODE_MASK;
414 if (!(gmode & SYSCTL_GPIOMODE_JTAG_GPIO_MODE))
415 avl &= ~JTAG_GPIO_MODE_MASK;
416 if (!(gmode & SYSCTL_GPIOMODE_UARTL_GPIO_MODE))
417 avl &= ~UARTL_GPIO_MODE_MASK;
418 if (!(gmode & SYSCTL_GPIOMODE_SPI_GPIO_MODE))
419 avl &= ~SPI_GPIO_MODE_MASK;
420 if (!(gmode & SYSCTL_GPIOMODE_I2C_GPIO_MODE))
421 avl &= ~I2C_GPIO_MODE_MASK;
422 if ((gmode & SYSCTL_GPIOMODE_UARTF_SHARE_MODE_GPIO) !=
423 SYSCTL_GPIOMODE_UARTF_SHARE_MODE_GPIO)
424 avl &= ~I2C_GPIO_MODE_MASK;
425 /* D-Link DAP-1350 Board have
426 * MDIO_GPIO_MODE
427 * UARTF_GPIO_MODE
428 * SPI_GPIO_MODE
429 * I2C_GPIO_MODE
430 * So we have
431 * 00000001 10000000 01111111 11111110
432 */
433 return (avl);
434
435 }
436
437 #define DAP1350_RESET_GPIO 10
438
439 static int
rt305x_gpio_attach(device_t dev)440 rt305x_gpio_attach(device_t dev)
441 {
442 struct rt305x_gpio_softc *sc = device_get_softc(dev);
443 int error = 0, i;
444 uint64_t avlpins = 0;
445 sc->reset_gpio = DAP1350_RESET_GPIO;
446
447 KASSERT((device_get_unit(dev) == 0),
448 ("rt305x_gpio_gpio: Only one gpio module supported"));
449
450 mtx_init(&sc->gpio_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK,
451 MTX_DEF);
452
453 /* Map control/status registers. */
454 sc->gpio_mem_rid = 0;
455 sc->gpio_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
456 &sc->gpio_mem_rid, RF_ACTIVE);
457
458 if (sc->gpio_mem_res == NULL) {
459 device_printf(dev, "couldn't map memory\n");
460 error = ENXIO;
461 rt305x_gpio_detach(dev);
462 return(error);
463 }
464
465 if ((sc->gpio_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
466 &sc->gpio_irq_rid, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
467 device_printf(dev, "unable to allocate IRQ resource\n");
468 return (ENXIO);
469 }
470
471 if ((bus_setup_intr(dev, sc->gpio_irq_res, INTR_TYPE_MISC,
472 /* rt305x_gpio_filter, */
473 rt305x_gpio_intr, NULL, sc, &sc->gpio_ih))) {
474 device_printf(dev,
475 "WARNING: unable to register interrupt handler\n");
476 return (ENXIO);
477 }
478
479 sc->dev = dev;
480 avlpins = rt305x_gpio_init(dev);
481
482 /* Configure all pins as input */
483 /* disable interrupts for all pins */
484 /* TODO */
485
486 sc->gpio_npins = NGPIO;
487 resource_int_value(device_get_name(dev), device_get_unit(dev),
488 "pins", &sc->gpio_npins);
489
490 for (i = 0; i < sc->gpio_npins; i++) {
491 sc->gpio_pins[i].gp_pin = i;
492 sc->gpio_pins[i].gp_caps = DEFAULT_CAPS;
493 sc->gpio_pins[i].gp_flags = 0;
494 }
495
496 /* Setup reset pin interrupt */
497 if (TUNABLE_INT_FETCH("reset_gpio", &sc->reset_gpio)) {
498 device_printf(dev, "\tHinted reset_gpio %d\n", sc->reset_gpio);
499 }
500 #ifdef notyet
501 if (sc->reset_gpio != -1) {
502 rt305x_gpio_pin_setflags(dev, sc->reset_gpio,
503 GPIO_PIN_INPUT|GPIO_PIN_INVOUT|
504 GPIO_PIN_INVOUT|GPIO_PIN_REPORT);
505 device_printf(dev, "\tUse reset_gpio %d\n", sc->reset_gpio);
506 }
507 #else
508 if (sc->reset_gpio != -1) {
509 rt305x_gpio_pin_setflags(dev, sc->reset_gpio,
510 GPIO_PIN_INPUT|GPIO_PIN_INVOUT);
511 device_printf(dev, "\tUse reset_gpio %d\n", sc->reset_gpio);
512 }
513 #endif
514
515 device_add_child(dev, "gpioc", device_get_unit(dev));
516 device_add_child(dev, "gpiobus", device_get_unit(dev));
517
518
519 return (bus_generic_attach(dev));
520 }
521
522 static int
rt305x_gpio_detach(device_t dev)523 rt305x_gpio_detach(device_t dev)
524 {
525 struct rt305x_gpio_softc *sc = device_get_softc(dev);
526
527 KASSERT(mtx_initialized(&sc->gpio_mtx), ("gpio mutex not initialized"));
528
529 bus_generic_detach(dev);
530
531 if (sc->gpio_mem_res)
532 bus_release_resource(dev, SYS_RES_MEMORY, sc->gpio_mem_rid,
533 sc->gpio_mem_res);
534
535 mtx_destroy(&sc->gpio_mtx);
536
537 return(0);
538 }
539
540 #ifdef notyet
541 static struct resource *
rt305x_gpio_alloc_resource(device_t bus,device_t child,int type,int * rid,u_long start,u_long end,u_long count,u_int flags)542 rt305x_gpio_alloc_resource(device_t bus, device_t child, int type, int *rid,
543 u_long start, u_long end, u_long count, u_int flags)
544 {
545 struct obio_softc *sc = device_get_softc(bus);
546 struct resource *rv;
547 struct rman *rm;
548
549 switch (type) {
550 case SYS_RES_GPIO:
551 rm = &sc->gpio_rman;
552 break;
553 default:
554 printf("%s: unknown resource type %d\n", __func__, type);
555 return (0);
556 }
557
558 rv = rman_reserve_resource(rm, start, end, count, flags, child);
559 if (rv == 0) {
560 printf("%s: could not reserve resource\n", __func__);
561 return (0);
562 }
563
564 rman_set_rid(rv, *rid);
565
566 return (rv);
567 }
568
569 static int
rt305x_gpio_activate_resource(device_t bus,device_t child,int type,int rid,struct resource * r)570 rt305x_gpio_activate_resource(device_t bus, device_t child, int type, int rid,
571 struct resource *r)
572 {
573
574 return (rman_activate_resource(r));
575 }
576
577 static int
rt305x_gpio_deactivate_resource(device_t bus,device_t child,int type,int rid,struct resource * r)578 rt305x_gpio_deactivate_resource(device_t bus, device_t child, int type, int rid,
579 struct resource *r)
580 {
581
582 return (rman_deactivate_resource(r));
583 }
584
585 static int
rt305x_gpio_release_resource(device_t dev,device_t child,int type,int rid,struct resource * r)586 rt305x_gpio_release_resource(device_t dev, device_t child, int type,
587 int rid, struct resource *r)
588 {
589 rman_release_resource(r);
590 return (0);
591 }
592 #endif
593
594 static device_method_t rt305x_gpio_methods[] = {
595 DEVMETHOD(device_probe, rt305x_gpio_probe),
596 DEVMETHOD(device_attach, rt305x_gpio_attach),
597 DEVMETHOD(device_detach, rt305x_gpio_detach),
598
599 /* GPIO protocol */
600 DEVMETHOD(gpio_pin_max, rt305x_gpio_pin_max),
601 DEVMETHOD(gpio_pin_getname, rt305x_gpio_pin_getname),
602 DEVMETHOD(gpio_pin_getflags, rt305x_gpio_pin_getflags),
603 DEVMETHOD(gpio_pin_getcaps, rt305x_gpio_pin_getcaps),
604 DEVMETHOD(gpio_pin_setflags, rt305x_gpio_pin_setflags),
605 DEVMETHOD(gpio_pin_get, rt305x_gpio_pin_get),
606 DEVMETHOD(gpio_pin_set, rt305x_gpio_pin_set),
607 DEVMETHOD(gpio_pin_toggle, rt305x_gpio_pin_toggle),
608 {0, 0},
609 };
610
611 static driver_t rt305x_gpio_driver = {
612 "gpio",
613 rt305x_gpio_methods,
614 sizeof(struct rt305x_gpio_softc),
615 };
616 static devclass_t rt305x_gpio_devclass;
617
618 DRIVER_MODULE(rt305x_gpio, obio, rt305x_gpio_driver,
619 rt305x_gpio_devclass, 0, 0);
620