C++ (Cpp) RK30_GPIO_LOCK示例

示例#1

文件： rk30xx_gpio.c 项目： 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);
}

示例#2

文件： rk30xx_gpio.c 项目： 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);
}

示例#3

文件： rk30xx_gpio.c 项目： 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);
}

示例#4

文件： rk30xx_gpio.c 项目： jaredmcneill/freebsd

static void
rk30_gpio_pin_configure(struct rk30_gpio_softc *sc, struct gpio_pin *pin,
    unsigned int flags)
{

	RK30_GPIO_LOCK(sc);
	/*
	 * Manage input/output.
	 */
	if (flags & (GPIO_PIN_INPUT | GPIO_PIN_OUTPUT)) {
		pin->gp_flags &= ~(GPIO_PIN_INPUT | GPIO_PIN_OUTPUT);
		if (flags & GPIO_PIN_OUTPUT)
			pin->gp_flags |= GPIO_PIN_OUTPUT;
		else
			pin->gp_flags |= GPIO_PIN_INPUT;
		rk30_gpio_set_function(sc, pin->gp_pin, pin->gp_flags);
	}
	/* Manage Pull-up/pull-down. */
	pin->gp_flags &= ~(GPIO_PIN_PULLUP | GPIO_PIN_PULLDOWN);
	if (flags & (GPIO_PIN_PULLUP | GPIO_PIN_PULLDOWN)) {
		if (flags & GPIO_PIN_PULLUP)
			pin->gp_flags |= GPIO_PIN_PULLUP;
		else
			pin->gp_flags |= GPIO_PIN_PULLDOWN;
	}
	rk30_gpio_set_pud(sc, pin->gp_pin, pin->gp_flags);
	RK30_GPIO_UNLOCK(sc);
}

示例#5

文件： rk30xx_gpio.c 项目： MattDooner/freebsd-west

static int
rk30_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
{
	struct rk30_gpio_softc *sc = device_get_softc(dev);
	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);

	RK30_GPIO_LOCK(sc);
	memcpy(name, sc->sc_gpio_pins[i].gp_name, GPIOMAXNAME);
	RK30_GPIO_UNLOCK(sc);

	return (0);
}

示例#6

文件： rk30xx_gpio.c 项目： MattDooner/freebsd-west

static int
rk30_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
{
	struct rk30_gpio_softc *sc = device_get_softc(dev);
	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);

	RK30_GPIO_LOCK(sc);
	*flags = sc->sc_gpio_pins[i].gp_flags;
	RK30_GPIO_UNLOCK(sc);

	return (0);
}

示例#7

文件： rk30xx_gpio.c 项目： 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);
}