1/*-
2 * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * Vybrid Family General-Purpose Input/Output (GPIO)
29 * Chapter 7, Vybrid Reference Manual, Rev. 5, 07/2013
30 */
31
32#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * Vybrid Family General-Purpose Input/Output (GPIO)
29 * Chapter 7, Vybrid Reference Manual, Rev. 5, 07/2013
30 */
31
32#include <sys/cdefs.h>
|
33__FBSDID("$FreeBSD: head/sys/arm/freescale/vybrid/vf_gpio.c 273799 2014-10-28 18:33:59Z loos $");
| 33__FBSDID("$FreeBSD: head/sys/arm/freescale/vybrid/vf_gpio.c 274670 2014-11-18 17:22:08Z loos $");
|
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/bus.h>
38#include <sys/kernel.h>
39#include <sys/module.h>
40#include <sys/malloc.h>
41#include <sys/rman.h>
42#include <sys/timeet.h>
43#include <sys/timetc.h>
44#include <sys/watchdog.h>
45#include <sys/mutex.h>
46#include <sys/gpio.h>
47
48#include <dev/fdt/fdt_common.h>
49#include <dev/ofw/openfirm.h>
50#include <dev/ofw/ofw_bus.h>
51#include <dev/ofw/ofw_bus_subr.h>
52
53#include <machine/bus.h>
54#include <machine/fdt.h>
55#include <machine/cpu.h>
56#include <machine/intr.h>
57
58#include "gpio_if.h"
59
60#include <arm/freescale/vybrid/vf_common.h>
61#include <arm/freescale/vybrid/vf_port.h>
62
63#define GPIO_PDOR(n) (0x00 + 0x40 * (n >> 5))
64#define GPIO_PSOR(n) (0x04 + 0x40 * (n >> 5))
65#define GPIO_PCOR(n) (0x08 + 0x40 * (n >> 5))
66#define GPIO_PTOR(n) (0x0C + 0x40 * (n >> 5))
67#define GPIO_PDIR(n) (0x10 + 0x40 * (n >> 5))
68
69#define GPIO_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
70#define GPIO_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
71
72#define DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT)
73
74/*
75 * GPIO interface
76 */
77static int vf_gpio_pin_max(device_t, int *);
78static int vf_gpio_pin_getcaps(device_t, uint32_t, uint32_t *);
79static int vf_gpio_pin_getname(device_t, uint32_t, char *);
80static int vf_gpio_pin_getflags(device_t, uint32_t, uint32_t *);
81static int vf_gpio_pin_setflags(device_t, uint32_t, uint32_t);
82static int vf_gpio_pin_set(device_t, uint32_t, unsigned int);
83static int vf_gpio_pin_get(device_t, uint32_t, unsigned int *);
84static int vf_gpio_pin_toggle(device_t, uint32_t pin);
85
86struct vf_gpio_softc {
87 struct resource *res[1];
88 bus_space_tag_t bst;
89 bus_space_handle_t bsh;
90
91 struct mtx sc_mtx;
92 int gpio_npins;
93 struct gpio_pin gpio_pins[NGPIO];
94};
95
96struct vf_gpio_softc *gpio_sc;
97
98static struct resource_spec vf_gpio_spec[] = {
99 { SYS_RES_MEMORY, 0, RF_ACTIVE },
100 { -1, 0 }
101};
102
103static int
104vf_gpio_probe(device_t dev)
105{
106
107 if (!ofw_bus_status_okay(dev))
108 return (ENXIO);
109
110 if (!ofw_bus_is_compatible(dev, "fsl,mvf600-gpio"))
111 return (ENXIO);
112
113 device_set_desc(dev, "Vybrid Family GPIO Unit");
114 return (BUS_PROBE_DEFAULT);
115}
116
117static int
118vf_gpio_attach(device_t dev)
119{
120 struct vf_gpio_softc *sc;
121 int i;
122
123 sc = device_get_softc(dev);
124 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
125
126 if (bus_alloc_resources(dev, vf_gpio_spec, sc->res)) {
127 device_printf(dev, "could not allocate resources\n");
128 return (ENXIO);
129 }
130
131 /* Memory interface */
132 sc->bst = rman_get_bustag(sc->res[0]);
133 sc->bsh = rman_get_bushandle(sc->res[0]);
134
135 gpio_sc = sc;
136
137 sc->gpio_npins = NGPIO;
138
139 for (i = 0; i < sc->gpio_npins; i++) {
140 sc->gpio_pins[i].gp_pin = i;
141 sc->gpio_pins[i].gp_caps = DEFAULT_CAPS;
142 sc->gpio_pins[i].gp_flags =
143 (READ4(sc, GPIO_PDOR(i)) & (1 << (i % 32))) ?
144 GPIO_PIN_OUTPUT: GPIO_PIN_INPUT;
145 snprintf(sc->gpio_pins[i].gp_name, GPIOMAXNAME,
146 "vf_gpio%d.%d", device_get_unit(dev), i);
147 }
148
149 device_add_child(dev, "gpioc", -1);
150 device_add_child(dev, "gpiobus", -1);
151
152 return (bus_generic_attach(dev));
153}
154
155static int
156vf_gpio_pin_max(device_t dev, int *maxpin)
157{
158
159 *maxpin = NGPIO - 1;
160 return (0);
161}
162
163static int
164vf_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
165{
166 struct vf_gpio_softc *sc;
167 int i;
168
169 sc = device_get_softc(dev);
170 for (i = 0; i < sc->gpio_npins; i++) {
171 if (sc->gpio_pins[i].gp_pin == pin)
172 break;
173 }
174
175 if (i >= sc->gpio_npins)
176 return (EINVAL);
177
178 GPIO_LOCK(sc);
179 memcpy(name, sc->gpio_pins[i].gp_name, GPIOMAXNAME);
180 GPIO_UNLOCK(sc);
181
182 return (0);
183}
184
185static int
186vf_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
187{
188 struct vf_gpio_softc *sc;
189 int i;
190
191 sc = device_get_softc(dev);
192 for (i = 0; i < sc->gpio_npins; i++) {
193 if (sc->gpio_pins[i].gp_pin == pin)
194 break;
195 }
196
197 if (i >= sc->gpio_npins)
198 return (EINVAL);
199
200 GPIO_LOCK(sc);
201 *caps = sc->gpio_pins[i].gp_caps;
202 GPIO_UNLOCK(sc);
203
204 return (0);
205}
206
207static int
208vf_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
209{
210 struct vf_gpio_softc *sc;
211 int i;
212
213 sc = device_get_softc(dev);
214 for (i = 0; i < sc->gpio_npins; i++) {
215 if (sc->gpio_pins[i].gp_pin == pin)
216 break;
217 }
218
219 if (i >= sc->gpio_npins)
220 return (EINVAL);
221
222 GPIO_LOCK(sc);
223 *flags = sc->gpio_pins[i].gp_flags;
224 GPIO_UNLOCK(sc);
225
226 return (0);
227}
228
229static int
230vf_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
231{
232 struct vf_gpio_softc *sc;
233 int i;
234
235 sc = device_get_softc(dev);
236 for (i = 0; i < sc->gpio_npins; i++) {
237 if (sc->gpio_pins[i].gp_pin == pin)
238 break;
239 }
240
241 if (i >= sc->gpio_npins)
242 return (EINVAL);
243
244 GPIO_LOCK(sc);
245 *val = (READ4(sc, GPIO_PDIR(i)) & (1 << (i % 32))) ? 1 : 0;
246 GPIO_UNLOCK(sc);
247
248 return (0);
249}
250
251static int
252vf_gpio_pin_toggle(device_t dev, uint32_t pin)
253{
254 struct vf_gpio_softc *sc;
255 int i;
256
257 sc = device_get_softc(dev);
258 for (i = 0; i < sc->gpio_npins; i++) {
259 if (sc->gpio_pins[i].gp_pin == pin)
260 break;
261 }
262
263 if (i >= sc->gpio_npins)
264 return (EINVAL);
265
266 GPIO_LOCK(sc);
267 WRITE4(sc, GPIO_PTOR(i), (1 << (i % 32)));
268 GPIO_UNLOCK(sc);
269
270 return (0);
271}
272
273
274static void
275vf_gpio_pin_configure(struct vf_gpio_softc *sc, struct gpio_pin *pin,
276 unsigned int flags)
277{
278
279 GPIO_LOCK(sc);
280
281 /*
282 * Manage input/output
283 */
284 if (flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) {
285 pin->gp_flags &= ~(GPIO_PIN_INPUT|GPIO_PIN_OUTPUT);
286 if (flags & GPIO_PIN_OUTPUT) {
287 pin->gp_flags |= GPIO_PIN_OUTPUT;
288
289 } else {
290 pin->gp_flags |= GPIO_PIN_INPUT;
291 WRITE4(sc, GPIO_PCOR(pin->gp_pin),
292 (1 << (pin->gp_pin % 32)));
293 }
294 }
295
296 GPIO_UNLOCK(sc);
297}
298
299
300static int
301vf_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
302{
303 struct vf_gpio_softc *sc;
304 int i;
305
306 sc = device_get_softc(dev);
307 for (i = 0; i < sc->gpio_npins; i++) {
308 if (sc->gpio_pins[i].gp_pin == pin)
309 break;
310 }
311
312 if (i >= sc->gpio_npins)
313 return (EINVAL);
314
| 34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/bus.h>
38#include <sys/kernel.h>
39#include <sys/module.h>
40#include <sys/malloc.h>
41#include <sys/rman.h>
42#include <sys/timeet.h>
43#include <sys/timetc.h>
44#include <sys/watchdog.h>
45#include <sys/mutex.h>
46#include <sys/gpio.h>
47
48#include <dev/fdt/fdt_common.h>
49#include <dev/ofw/openfirm.h>
50#include <dev/ofw/ofw_bus.h>
51#include <dev/ofw/ofw_bus_subr.h>
52
53#include <machine/bus.h>
54#include <machine/fdt.h>
55#include <machine/cpu.h>
56#include <machine/intr.h>
57
58#include "gpio_if.h"
59
60#include <arm/freescale/vybrid/vf_common.h>
61#include <arm/freescale/vybrid/vf_port.h>
62
63#define GPIO_PDOR(n) (0x00 + 0x40 * (n >> 5))
64#define GPIO_PSOR(n) (0x04 + 0x40 * (n >> 5))
65#define GPIO_PCOR(n) (0x08 + 0x40 * (n >> 5))
66#define GPIO_PTOR(n) (0x0C + 0x40 * (n >> 5))
67#define GPIO_PDIR(n) (0x10 + 0x40 * (n >> 5))
68
69#define GPIO_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
70#define GPIO_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
71
72#define DEFAULT_CAPS (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT)
73
74/*
75 * GPIO interface
76 */
77static int vf_gpio_pin_max(device_t, int *);
78static int vf_gpio_pin_getcaps(device_t, uint32_t, uint32_t *);
79static int vf_gpio_pin_getname(device_t, uint32_t, char *);
80static int vf_gpio_pin_getflags(device_t, uint32_t, uint32_t *);
81static int vf_gpio_pin_setflags(device_t, uint32_t, uint32_t);
82static int vf_gpio_pin_set(device_t, uint32_t, unsigned int);
83static int vf_gpio_pin_get(device_t, uint32_t, unsigned int *);
84static int vf_gpio_pin_toggle(device_t, uint32_t pin);
85
86struct vf_gpio_softc {
87 struct resource *res[1];
88 bus_space_tag_t bst;
89 bus_space_handle_t bsh;
90
91 struct mtx sc_mtx;
92 int gpio_npins;
93 struct gpio_pin gpio_pins[NGPIO];
94};
95
96struct vf_gpio_softc *gpio_sc;
97
98static struct resource_spec vf_gpio_spec[] = {
99 { SYS_RES_MEMORY, 0, RF_ACTIVE },
100 { -1, 0 }
101};
102
103static int
104vf_gpio_probe(device_t dev)
105{
106
107 if (!ofw_bus_status_okay(dev))
108 return (ENXIO);
109
110 if (!ofw_bus_is_compatible(dev, "fsl,mvf600-gpio"))
111 return (ENXIO);
112
113 device_set_desc(dev, "Vybrid Family GPIO Unit");
114 return (BUS_PROBE_DEFAULT);
115}
116
117static int
118vf_gpio_attach(device_t dev)
119{
120 struct vf_gpio_softc *sc;
121 int i;
122
123 sc = device_get_softc(dev);
124 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
125
126 if (bus_alloc_resources(dev, vf_gpio_spec, sc->res)) {
127 device_printf(dev, "could not allocate resources\n");
128 return (ENXIO);
129 }
130
131 /* Memory interface */
132 sc->bst = rman_get_bustag(sc->res[0]);
133 sc->bsh = rman_get_bushandle(sc->res[0]);
134
135 gpio_sc = sc;
136
137 sc->gpio_npins = NGPIO;
138
139 for (i = 0; i < sc->gpio_npins; i++) {
140 sc->gpio_pins[i].gp_pin = i;
141 sc->gpio_pins[i].gp_caps = DEFAULT_CAPS;
142 sc->gpio_pins[i].gp_flags =
143 (READ4(sc, GPIO_PDOR(i)) & (1 << (i % 32))) ?
144 GPIO_PIN_OUTPUT: GPIO_PIN_INPUT;
145 snprintf(sc->gpio_pins[i].gp_name, GPIOMAXNAME,
146 "vf_gpio%d.%d", device_get_unit(dev), i);
147 }
148
149 device_add_child(dev, "gpioc", -1);
150 device_add_child(dev, "gpiobus", -1);
151
152 return (bus_generic_attach(dev));
153}
154
155static int
156vf_gpio_pin_max(device_t dev, int *maxpin)
157{
158
159 *maxpin = NGPIO - 1;
160 return (0);
161}
162
163static int
164vf_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
165{
166 struct vf_gpio_softc *sc;
167 int i;
168
169 sc = device_get_softc(dev);
170 for (i = 0; i < sc->gpio_npins; i++) {
171 if (sc->gpio_pins[i].gp_pin == pin)
172 break;
173 }
174
175 if (i >= sc->gpio_npins)
176 return (EINVAL);
177
178 GPIO_LOCK(sc);
179 memcpy(name, sc->gpio_pins[i].gp_name, GPIOMAXNAME);
180 GPIO_UNLOCK(sc);
181
182 return (0);
183}
184
185static int
186vf_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
187{
188 struct vf_gpio_softc *sc;
189 int i;
190
191 sc = device_get_softc(dev);
192 for (i = 0; i < sc->gpio_npins; i++) {
193 if (sc->gpio_pins[i].gp_pin == pin)
194 break;
195 }
196
197 if (i >= sc->gpio_npins)
198 return (EINVAL);
199
200 GPIO_LOCK(sc);
201 *caps = sc->gpio_pins[i].gp_caps;
202 GPIO_UNLOCK(sc);
203
204 return (0);
205}
206
207static int
208vf_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
209{
210 struct vf_gpio_softc *sc;
211 int i;
212
213 sc = device_get_softc(dev);
214 for (i = 0; i < sc->gpio_npins; i++) {
215 if (sc->gpio_pins[i].gp_pin == pin)
216 break;
217 }
218
219 if (i >= sc->gpio_npins)
220 return (EINVAL);
221
222 GPIO_LOCK(sc);
223 *flags = sc->gpio_pins[i].gp_flags;
224 GPIO_UNLOCK(sc);
225
226 return (0);
227}
228
229static int
230vf_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
231{
232 struct vf_gpio_softc *sc;
233 int i;
234
235 sc = device_get_softc(dev);
236 for (i = 0; i < sc->gpio_npins; i++) {
237 if (sc->gpio_pins[i].gp_pin == pin)
238 break;
239 }
240
241 if (i >= sc->gpio_npins)
242 return (EINVAL);
243
244 GPIO_LOCK(sc);
245 *val = (READ4(sc, GPIO_PDIR(i)) & (1 << (i % 32))) ? 1 : 0;
246 GPIO_UNLOCK(sc);
247
248 return (0);
249}
250
251static int
252vf_gpio_pin_toggle(device_t dev, uint32_t pin)
253{
254 struct vf_gpio_softc *sc;
255 int i;
256
257 sc = device_get_softc(dev);
258 for (i = 0; i < sc->gpio_npins; i++) {
259 if (sc->gpio_pins[i].gp_pin == pin)
260 break;
261 }
262
263 if (i >= sc->gpio_npins)
264 return (EINVAL);
265
266 GPIO_LOCK(sc);
267 WRITE4(sc, GPIO_PTOR(i), (1 << (i % 32)));
268 GPIO_UNLOCK(sc);
269
270 return (0);
271}
272
273
274static void
275vf_gpio_pin_configure(struct vf_gpio_softc *sc, struct gpio_pin *pin,
276 unsigned int flags)
277{
278
279 GPIO_LOCK(sc);
280
281 /*
282 * Manage input/output
283 */
284 if (flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) {
285 pin->gp_flags &= ~(GPIO_PIN_INPUT|GPIO_PIN_OUTPUT);
286 if (flags & GPIO_PIN_OUTPUT) {
287 pin->gp_flags |= GPIO_PIN_OUTPUT;
288
289 } else {
290 pin->gp_flags |= GPIO_PIN_INPUT;
291 WRITE4(sc, GPIO_PCOR(pin->gp_pin),
292 (1 << (pin->gp_pin % 32)));
293 }
294 }
295
296 GPIO_UNLOCK(sc);
297}
298
299
300static int
301vf_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
302{
303 struct vf_gpio_softc *sc;
304 int i;
305
306 sc = device_get_softc(dev);
307 for (i = 0; i < sc->gpio_npins; i++) {
308 if (sc->gpio_pins[i].gp_pin == pin)
309 break;
310 }
311
312 if (i >= sc->gpio_npins)
313 return (EINVAL);
314
|
315 /* Check for unwanted flags. */
316 if ((flags & sc->gpio_pins[i].gp_caps) != flags)
317 return (EINVAL);
318
319 /* Can't mix input/output together */
320 if ((flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) ==
321 (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT))
322 return (EINVAL);
323
| |
324 vf_gpio_pin_configure(sc, &sc->gpio_pins[i], flags);
325
326 return (0);
327}
328
329static int
330vf_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value)
331{
332 struct vf_gpio_softc *sc;
333 int i;
334
335 sc = device_get_softc(dev);
336 for (i = 0; i < sc->gpio_npins; i++) {
337 if (sc->gpio_pins[i].gp_pin == pin)
338 break;
339 }
340
341 if (i >= sc->gpio_npins)
342 return (EINVAL);
343
344 GPIO_LOCK(sc);
345 if (value)
346 WRITE4(sc, GPIO_PSOR(i), (1 << (i % 32)));
347 else
348 WRITE4(sc, GPIO_PCOR(i), (1 << (i % 32)));
349 GPIO_UNLOCK(sc);
350
351 return (0);
352}
353
354static device_method_t vf_gpio_methods[] = {
355 DEVMETHOD(device_probe, vf_gpio_probe),
356 DEVMETHOD(device_attach, vf_gpio_attach),
357
358 /* GPIO protocol */
359 DEVMETHOD(gpio_pin_max, vf_gpio_pin_max),
360 DEVMETHOD(gpio_pin_getname, vf_gpio_pin_getname),
361 DEVMETHOD(gpio_pin_getcaps, vf_gpio_pin_getcaps),
362 DEVMETHOD(gpio_pin_getflags, vf_gpio_pin_getflags),
363 DEVMETHOD(gpio_pin_get, vf_gpio_pin_get),
364 DEVMETHOD(gpio_pin_toggle, vf_gpio_pin_toggle),
365 DEVMETHOD(gpio_pin_setflags, vf_gpio_pin_setflags),
366 DEVMETHOD(gpio_pin_set, vf_gpio_pin_set),
367 { 0, 0 }
368};
369
370static driver_t vf_gpio_driver = {
371 "gpio",
372 vf_gpio_methods,
373 sizeof(struct vf_gpio_softc),
374};
375
376static devclass_t vf_gpio_devclass;
377
378DRIVER_MODULE(vf_gpio, simplebus, vf_gpio_driver, vf_gpio_devclass, 0, 0);
| 315 vf_gpio_pin_configure(sc, &sc->gpio_pins[i], flags);
316
317 return (0);
318}
319
320static int
321vf_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value)
322{
323 struct vf_gpio_softc *sc;
324 int i;
325
326 sc = device_get_softc(dev);
327 for (i = 0; i < sc->gpio_npins; i++) {
328 if (sc->gpio_pins[i].gp_pin == pin)
329 break;
330 }
331
332 if (i >= sc->gpio_npins)
333 return (EINVAL);
334
335 GPIO_LOCK(sc);
336 if (value)
337 WRITE4(sc, GPIO_PSOR(i), (1 << (i % 32)));
338 else
339 WRITE4(sc, GPIO_PCOR(i), (1 << (i % 32)));
340 GPIO_UNLOCK(sc);
341
342 return (0);
343}
344
345static device_method_t vf_gpio_methods[] = {
346 DEVMETHOD(device_probe, vf_gpio_probe),
347 DEVMETHOD(device_attach, vf_gpio_attach),
348
349 /* GPIO protocol */
350 DEVMETHOD(gpio_pin_max, vf_gpio_pin_max),
351 DEVMETHOD(gpio_pin_getname, vf_gpio_pin_getname),
352 DEVMETHOD(gpio_pin_getcaps, vf_gpio_pin_getcaps),
353 DEVMETHOD(gpio_pin_getflags, vf_gpio_pin_getflags),
354 DEVMETHOD(gpio_pin_get, vf_gpio_pin_get),
355 DEVMETHOD(gpio_pin_toggle, vf_gpio_pin_toggle),
356 DEVMETHOD(gpio_pin_setflags, vf_gpio_pin_setflags),
357 DEVMETHOD(gpio_pin_set, vf_gpio_pin_set),
358 { 0, 0 }
359};
360
361static driver_t vf_gpio_driver = {
362 "gpio",
363 vf_gpio_methods,
364 sizeof(struct vf_gpio_softc),
365};
366
367static devclass_t vf_gpio_devclass;
368
369DRIVER_MODULE(vf_gpio, simplebus, vf_gpio_driver, vf_gpio_devclass, 0, 0);
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