Exemplos de GP_DRIVE0 em C++ (Cpp)

Exemplo n.º 1

Arquivo: pinctrl-digicolor.c Projeto: ReneNyffenegger/linux

static int dc_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
{
	struct dc_pinmap *pmap = gpiochip_get_data(chip);
	int reg_off = GP_DRIVE0(gpio/PINS_PER_COLLECTION);
	int bit_off = gpio % PINS_PER_COLLECTION;
	u8 drive;
	unsigned long flags;

	spin_lock_irqsave(&pmap->lock, flags);
	drive = readb_relaxed(pmap->regs + reg_off);
	drive &= ~BIT(bit_off);
	writeb_relaxed(drive, pmap->regs + reg_off);
	spin_unlock_irqrestore(&pmap->lock, flags);

	return 0;
}

Exemplo n.º 2

Arquivo: pinctrl-digicolor.c Projeto: Chong-Li/cse522

static int dc_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
				    int value)
{
	struct dc_pinmap *pmap = container_of(chip, struct dc_pinmap, chip);
	int reg_off = GP_DRIVE0(gpio/PINS_PER_COLLECTION);
	int bit_off = gpio % PINS_PER_COLLECTION;
	u8 drive;
	unsigned long flags;

	dc_gpio_set(chip, gpio, value);

	spin_lock_irqsave(&pmap->lock, flags);
	drive = readb_relaxed(pmap->regs + reg_off);
	drive |= BIT(bit_off);
	writeb_relaxed(drive, pmap->regs + reg_off);
	spin_unlock_irqrestore(&pmap->lock, flags);

	return 0;
}