xscale/ixp425/avila_gpio.c

73 	int pin;
108     struct gpio_pin *pin, uint32_t flags);
109 static int  avila_gpio_pin_flags(struct avila_gpio_softc *sc, uint32_t pin);
123 static int avila_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps);
124 static int avila_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t
126 static int avila_gpio_pin_getname(device_t dev, uint32_t pin, char *name);
127 static int avila_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags);
128 static int avila_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value);
129 static int avila_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val);
130 static int avila_gpio_pin_toggle(device_t dev, uint32_t pin);
133 avila_gpio_pin_flags(struct avila_gpio_softc *sc, uint32_t pin)
137 	v = GPIO_CONF_READ_4(sc, IXP425_GPIO_GPINR) & (1 << pin);
143 avila_gpio_pin_configure(struct avila_gpio_softc *sc, struct gpio_pin *pin,
148 	mask = 1 << pin->gp_pin;
155 		pin->gp_flags &= ~(GPIO_PIN_INPUT|GPIO_PIN_OUTPUT);
157 			pin->gp_flags |= GPIO_PIN_OUTPUT;
161 			pin->gp_flags |= GPIO_PIN_INPUT;
187 avila_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
191 	if (pin >= IXP4XX_GPIO_PINS || !(sc->sc_valid & (1 << pin)))
194 	*caps = sc->sc_pins[pin].gp_caps;
199 avila_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
203 	if (pin >= IXP4XX_GPIO_PINS || !(sc->sc_valid & (1 << pin)))
208 	sc->sc_pins[pin].gp_flags = avila_gpio_pin_flags(sc, pin);
209 	*flags = sc->sc_pins[pin].gp_flags;
216 avila_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
220 	if (pin >= IXP4XX_GPIO_PINS || !(sc->sc_valid & (1 << pin)))
223 	memcpy(name, sc->sc_pins[pin].gp_name, GPIOMAXNAME);
228 avila_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
231 	uint32_t mask = 1 << pin;
233 	if (pin >= IXP4XX_GPIO_PINS || !(sc->sc_valid & mask))
236 	avila_gpio_pin_configure(sc, &sc->sc_pins[pin], flags);
242 avila_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value)
245 	uint32_t mask = 1 << pin;
247 	if (pin >= IXP4XX_GPIO_PINS || !(sc->sc_valid & mask))
261 avila_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
265 	if (pin >= IXP4XX_GPIO_PINS || !(sc->sc_valid & (1 << pin)))
269 	*val = (GPIO_CONF_READ_4(sc, IXP425_GPIO_GPINR) & (1 << pin)) ? 1 : 0;
276 avila_gpio_pin_toggle(device_t dev, uint32_t pin)
279 	uint32_t mask = 1 << pin;
282 	if (pin >= IXP4XX_GPIO_PINS || !(sc->sc_valid & mask))
319 		strncpy(sc->sc_pins[p->pin].gp_name, p->name, GPIOMAXNAME);
320 		sc->sc_pins[p->pin].gp_pin = p->pin;
321 		sc->sc_pins[p->pin].gp_caps = p->caps;
322 		sc->sc_pins[p->pin].gp_flags = avila_gpio_pin_flags(sc, p->pin);
323 		sc->sc_valid |= 1 << p->pin;