Esempi in C++ (Cpp) per pinmux_config_gpio

Esempio n. 1

File: pfc.c Progetto: Aircell/asp-kernel

static int sh_gpio_request(struct gpio_chip *chip, unsigned offset)
{
	struct pinmux_info *gpioc = chip_to_pinmux(chip);
	struct pinmux_data_reg *dummy;
	unsigned long flags;
	int i, ret, pinmux_type;

	ret = -EINVAL;

	if (!gpioc)
		goto err_out;

	spin_lock_irqsave(&gpio_lock, flags);

	if ((gpioc->gpios[offset].flags & PINMUX_FLAG_TYPE) != PINMUX_TYPE_NONE)
		goto err_unlock;

	/* setup pin function here if no data is associated with pin */

	if (get_data_reg(gpioc, offset, &dummy, &i) != 0)
		pinmux_type = PINMUX_TYPE_FUNCTION;
	else
		pinmux_type = PINMUX_TYPE_GPIO;

	if (pinmux_type == PINMUX_TYPE_FUNCTION) {
		if (pinmux_config_gpio(gpioc, offset,
				       pinmux_type,
				       GPIO_CFG_DRYRUN) != 0)
			goto err_unlock;

		if (pinmux_config_gpio(gpioc, offset,
				       pinmux_type,
				       GPIO_CFG_REQ) != 0)
			BUG();
	}

	gpioc->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
	gpioc->gpios[offset].flags |= pinmux_type;

	ret = 0;
 err_unlock:
	spin_unlock_irqrestore(&gpio_lock, flags);
 err_out:
	return ret;
}

Esempio n. 2

File: gpio.c Progetto: johnny/CobraDroidBeta

int __gpio_request(unsigned gpio)
{
	struct pinmux_info *gpioc = gpio_controller(gpio);
	struct pinmux_data_reg *dummy;
	unsigned long flags;
	int i, ret, pinmux_type;

	ret = -EINVAL;

	if (!gpioc)
		goto err_out;

	spin_lock_irqsave(&gpio_lock, flags);

	if ((gpioc->gpios[gpio].flags & PINMUX_FLAG_TYPE) != PINMUX_TYPE_NONE)
		goto err_unlock;

	/* setup pin function here if no data is associated with pin */

	if (get_data_reg(gpioc, gpio, &dummy, &i) != 0)
		pinmux_type = PINMUX_TYPE_FUNCTION;
	else
		pinmux_type = PINMUX_TYPE_GPIO;

	if (pinmux_type == PINMUX_TYPE_FUNCTION) {
		if (pinmux_config_gpio(gpioc, gpio,
				       pinmux_type,
				       GPIO_CFG_DRYRUN) != 0)
			goto err_unlock;

		if (pinmux_config_gpio(gpioc, gpio,
				       pinmux_type,
				       GPIO_CFG_REQ) != 0)
			BUG();
	}

	gpioc->gpios[gpio].flags = pinmux_type;

	ret = 0;
 err_unlock:
	spin_unlock_irqrestore(&gpio_lock, flags);
 err_out:
	return ret;
}

Esempio n. 3

File: pfc.c Progetto: Aircell/asp-kernel

static int pinmux_direction(struct pinmux_info *gpioc,
			    unsigned gpio, int new_pinmux_type)
{
	int pinmux_type;
	int ret = -EINVAL;

	if (!gpioc)
		goto err_out;

	pinmux_type = gpioc->gpios[gpio].flags & PINMUX_FLAG_TYPE;

	switch (pinmux_type) {
	case PINMUX_TYPE_GPIO:
		break;
	case PINMUX_TYPE_OUTPUT:
	case PINMUX_TYPE_INPUT:
	case PINMUX_TYPE_INPUT_PULLUP:
	case PINMUX_TYPE_INPUT_PULLDOWN:
		pinmux_config_gpio(gpioc, gpio, pinmux_type, GPIO_CFG_FREE);
		break;
	default:
		goto err_out;
	}

	if (pinmux_config_gpio(gpioc, gpio,
			       new_pinmux_type,
			       GPIO_CFG_DRYRUN) != 0)
		goto err_out;

	if (pinmux_config_gpio(gpioc, gpio,
			       new_pinmux_type,
			       GPIO_CFG_REQ) != 0)
		BUG();

	gpioc->gpios[gpio].flags &= ~PINMUX_FLAG_TYPE;
	gpioc->gpios[gpio].flags |= new_pinmux_type;

	ret = 0;
 err_out:
	return ret;
}

Esempio n. 4

File: sh_pfc.c Progetto: 0xFelix/u-boot-edminiv2

static void sh_gpio_free(unsigned offset)
{
	int pinmux_type;

	if (!gpioc)
		return;

	pinmux_type = gpioc->gpios[offset].flags & PINMUX_FLAG_TYPE;
	pinmux_config_gpio(gpioc, offset, pinmux_type, GPIO_CFG_FREE);
	gpioc->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
	gpioc->gpios[offset].flags |= PINMUX_TYPE_NONE;
}

Esempio n. 5

File: sh_pfc.c Progetto: 0xFelix/u-boot-edminiv2

static int sh_gpio_request(unsigned offset)
{
	struct pinmux_data_reg *dummy;
	int i, ret, pinmux_type;

	ret = -1;

	if (!gpioc)
		goto err_out;

	if ((gpioc->gpios[offset].flags & PINMUX_FLAG_TYPE) != PINMUX_TYPE_NONE)
		goto err_out;

	/* setup pin function here if no data is associated with pin */

	if (get_data_reg(gpioc, offset, &dummy, &i) != 0)
		pinmux_type = PINMUX_TYPE_FUNCTION;
	else
		pinmux_type = PINMUX_TYPE_GPIO;

	if (pinmux_type == PINMUX_TYPE_FUNCTION) {
		if (pinmux_config_gpio(gpioc, offset,
				       pinmux_type,
				       GPIO_CFG_DRYRUN) != 0)
			goto err_out;

		if (pinmux_config_gpio(gpioc, offset,
				       pinmux_type,
				       GPIO_CFG_REQ) != 0)
			BUG();
	}

	gpioc->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
	gpioc->gpios[offset].flags |= pinmux_type;

	ret = 0;
err_out:
	return ret;
}

Esempio n. 6

File: gpio.c Progetto: johnny/CobraDroidBeta

void gpio_free(unsigned gpio)
{
	struct pinmux_info *gpioc = gpio_controller(gpio);
	unsigned long flags;
	int pinmux_type;

	if (!gpioc)
		return;

	spin_lock_irqsave(&gpio_lock, flags);

	pinmux_type = gpioc->gpios[gpio].flags & PINMUX_FLAG_TYPE;
	pinmux_config_gpio(gpioc, gpio, pinmux_type, GPIO_CFG_FREE);
	gpioc->gpios[gpio].flags = PINMUX_TYPE_NONE;

	spin_unlock_irqrestore(&gpio_lock, flags);
}

Esempio n. 7

File: pfc.c Progetto: Aircell/asp-kernel

static void sh_gpio_free(struct gpio_chip *chip, unsigned offset)
{
	struct pinmux_info *gpioc = chip_to_pinmux(chip);
	unsigned long flags;
	int pinmux_type;

	if (!gpioc)
		return;

	spin_lock_irqsave(&gpio_lock, flags);

	pinmux_type = gpioc->gpios[offset].flags & PINMUX_FLAG_TYPE;
	pinmux_config_gpio(gpioc, offset, pinmux_type, GPIO_CFG_FREE);
	gpioc->gpios[offset].flags &= ~PINMUX_FLAG_TYPE;
	gpioc->gpios[offset].flags |= PINMUX_TYPE_NONE;

	spin_unlock_irqrestore(&gpio_lock, flags);
}