xscale/ixp425/cambria_gpio.c

92 	int pin;
123 static int cambria_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps);
124 static int cambria_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t
126 static int cambria_gpio_pin_getname(device_t dev, uint32_t pin, char *name);
127 static int cambria_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags);
128 static int cambria_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value);
129 static int cambria_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val);
130 static int cambria_gpio_pin_toggle(device_t dev, uint32_t pin);
223 cambria_gpio_read(struct cambria_gpio_softc *sc, uint32_t pin, unsigned int *val)
235 	*val = (i2c_readbyte(sc) & (1 << pin)) != 0;
273 cambria_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
277 	if (pin >= GPIO_PINS)
280 	*caps = sc->sc_pins[pin].gp_caps;
285 cambria_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
289 	if (pin >= GPIO_PINS)
292 	*flags = sc->sc_pins[pin].gp_flags;
297 cambria_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
301 	if (pin >= GPIO_PINS)
304 	memcpy(name, sc->sc_pins[pin].gp_name, GPIOMAXNAME);
309 cambria_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
315 	mask = 1 << pin;
317 	if (pin >= GPIO_PINS)
321 	sc->sc_pins[pin].gp_flags = flags;
340 cambria_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value)
346 	mask = 1 << pin;
348 	if (pin >= GPIO_PINS)
356 	if (sc->sc_pins[pin].gp_flags != GPIO_PIN_OUTPUT) {
373 cambria_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
378 	if (pin >= GPIO_PINS)
382 	if (sc->sc_pins[pin].gp_flags == GPIO_PIN_OUTPUT)
383 		*val = (sc->sc_latch & (1 << pin)) ? 1 : 0;
385 		error = cambria_gpio_read(sc, pin, val);
392 cambria_gpio_pin_toggle(device_t dev, uint32_t pin)
397 	if (pin >= GPIO_PINS)
401 	sc->sc_val ^= (1 << pin);
402 	if (sc->sc_pins[pin].gp_flags == GPIO_PIN_OUTPUT) {
403 		sc->sc_latch ^= (1 << pin);
423 	int pin;
431 	for (pin = 0; pin < GPIO_PINS; pin++) {
432 		struct cambria_gpio_pin *p = &cambria_gpio_pins[pin];
434 		strncpy(sc->sc_pins[pin].gp_name, p->name, GPIOMAXNAME);
435 		sc->sc_pins[pin].gp_pin = pin;
436 		sc->sc_pins[pin].gp_caps = GPIO_PIN_INPUT|GPIO_PIN_OUTPUT;
437 		sc->sc_pins[pin].gp_flags = 0;
438 		cambria_gpio_pin_setflags(dev, pin, p->flags);