C++ (Cpp) RK30_GPIO_READ Beispiele

Beispiel #1

Datei: rk30xx_gpio.c Projekt: MattDooner/freebsd-west

static int
rk30_gpio_pin_set(device_t dev, uint32_t pin, unsigned int value)
{
	struct rk30_gpio_softc *sc = device_get_softc(dev);
	uint32_t bank, offset, data;
	int i;

	for (i = 0; i < sc->sc_gpio_npins; i++) {
		if (sc->sc_gpio_pins[i].gp_pin == pin)
			break;
	}

	if (i >= sc->sc_gpio_npins)
		return (EINVAL);

	bank = pin / 32;
	pin = pin % 32;
	offset = 1 << pin;

	RK30_GPIO_LOCK(sc);
	data = RK30_GPIO_READ(sc, RK30_GPIO_SWPORT_DDR);
	data |= offset;
	RK30_GPIO_WRITE(sc, RK30_GPIO_SWPORT_DDR, data);

	data = RK30_GPIO_READ(sc, RK30_GPIO_SWPORT_DR);
	if (value)
		data |= offset;
	else
		data &= ~offset;
	RK30_GPIO_WRITE(sc, RK30_GPIO_SWPORT_DR, data);
	RK30_GPIO_UNLOCK(sc);

	return (0);
}

Beispiel #2

Datei: rk30xx_gpio.c Projekt: MattDooner/freebsd-west

static int
rk30_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
{
	struct rk30_gpio_softc *sc = device_get_softc(dev);
	uint32_t bank, offset, reg_data;
	int i;

	for (i = 0; i < sc->sc_gpio_npins; i++) {
		if (sc->sc_gpio_pins[i].gp_pin == pin)
			break;
	}

	if (i >= sc->sc_gpio_npins)
		return (EINVAL);

	bank = pin / 32;
	pin = pin % 32;
	offset = 1 << pin;

	RK30_GPIO_LOCK(sc);
	reg_data = RK30_GPIO_READ(sc, RK30_GPIO_EXT_PORT);
	RK30_GPIO_UNLOCK(sc);
	*val = (reg_data & offset) ? 1 : 0;

	return (0);
}

Beispiel #3

Datei: rk30xx_gpio.c Projekt: jaredmcneill/freebsd

static int
rk30_gpio_pin_toggle(device_t dev, uint32_t pin)
{
	int i;
	struct rk30_gpio_softc *sc;
	uint32_t data;

	sc = device_get_softc(dev);
	for (i = 0; i < sc->sc_gpio_npins; i++) {
		if (sc->sc_gpio_pins[i].gp_pin == pin)
			break;
	}
	if (i >= sc->sc_gpio_npins)
		return (EINVAL);
	RK30_GPIO_LOCK(sc);
	data = RK30_GPIO_READ(sc, RK30_GPIO_SWPORT_DR);
	if (data & (1U << pin))
		data &= ~(1U << pin);
	else
		data |= (1U << pin);
	RK30_GPIO_WRITE(sc, RK30_GPIO_SWPORT_DR, data);
	RK30_GPIO_UNLOCK(sc);

	return (0);
}

Beispiel #4

Datei: rk30xx_gpio.c Projekt: jaredmcneill/freebsd

static uint32_t
rk30_gpio_get_function(struct rk30_gpio_softc *sc, uint32_t pin)
{

	if (RK30_GPIO_READ(sc, RK30_GPIO_SWPORT_DDR) & (1U << pin))
		return (GPIO_PIN_OUTPUT);
	else
		return (GPIO_PIN_INPUT);
}

Beispiel #5

Datei: rk30xx_gpio.c Projekt: MattDooner/freebsd-west

static uint32_t
rk30_gpio_get_function(struct rk30_gpio_softc *sc, uint32_t pin)
{
	uint32_t bank, func, offset;

	bank = pin / 32;
	pin = pin % 32;
	offset = 1 << pin;

	func = RK30_GPIO_READ(sc, RK30_GPIO_SWPORT_DDR);
	func &= offset;

	return (func);
}

Beispiel #6

Datei: rk30xx_gpio.c Projekt: jaredmcneill/freebsd

static void
rk30_gpio_set_function(struct rk30_gpio_softc *sc, uint32_t pin, uint32_t func)
{
	uint32_t data;

	/* Must be called with lock held. */
	RK30_GPIO_LOCK_ASSERT(sc);
	data = RK30_GPIO_READ(sc, RK30_GPIO_SWPORT_DDR);
	if (func == GPIO_PIN_OUTPUT)
		data |= (1U << pin);
	else
		data &= ~(1U << pin);
	RK30_GPIO_WRITE(sc, RK30_GPIO_SWPORT_DDR, data);
}

Beispiel #7

Datei: rk30xx_gpio.c Projekt: MattDooner/freebsd-west

static void
rk30_gpio_set_function(struct rk30_gpio_softc *sc, uint32_t pin, uint32_t f)
{
	uint32_t bank, data, offset;

	/* Must be called with lock held. */
	RK30_GPIO_LOCK_ASSERT(sc);

	bank = pin / 32;
	pin = pin % 32;
	offset = 1 << pin;

	data = RK30_GPIO_READ(sc, RK30_GPIO_SWPORT_DDR);
	if (f)
		data |= offset;
	else
		data &= ~offset;
	RK30_GPIO_WRITE(sc, RK30_GPIO_SWPORT_DDR, data);
}

Beispiel #8

Datei: rk30xx_gpio.c Projekt: jaredmcneill/freebsd

static int
rk30_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
{
	int i;
	struct rk30_gpio_softc *sc;
	uint32_t data;

	sc = device_get_softc(dev);
	for (i = 0; i < sc->sc_gpio_npins; i++) {
		if (sc->sc_gpio_pins[i].gp_pin == pin)
			break;
	}
	if (i >= sc->sc_gpio_npins)
		return (EINVAL);
	RK30_GPIO_LOCK(sc);
	data = RK30_GPIO_READ(sc, RK30_GPIO_EXT_PORT);
	RK30_GPIO_UNLOCK(sc);
	*val = (data & (1U << pin)) ? 1 : 0;

	return (0);
}