Esempi in C++ (Cpp) per pca953x_write_single

Esempio n. 1

File: pca953x_gpio.c Progetto: eddyp/u-boot

static int pca953x_set_direction(struct udevice *dev, unsigned offset, int dir)
{
	struct pca953x_info *info = dev_get_platdata(dev);
	int bank = offset / BANK_SZ;
	int off = offset % BANK_SZ;
	u8 val;
	int ret;

	if (dir == PCA953X_DIRECTION_IN)
		val = info->reg_direction[bank] | (1 << off);
	else
		val = info->reg_direction[bank] & ~(1 << off);

	ret = pca953x_write_single(dev, PCA953X_DIRECTION, val, offset);
	if (ret)
		return ret;

	info->reg_direction[bank] = val;

	return 0;
}

Esempio n. 2

File: pca953x_gpio.c Progetto: danielschwierzeck/u-boot-lantiq

static int pca953x_set_value(struct udevice *dev, uint offset, int value)
{
	struct pca953x_info *info = dev_get_platdata(dev);
	int bank = offset / BANK_SZ;
	int off = offset % BANK_SZ;
	u8 val;
	int ret;

	if (value)
		val = info->reg_output[bank] | (1 << off);
	else
		val = info->reg_output[bank] & ~(1 << off);

	ret = pca953x_write_single(dev, PCA953X_OUTPUT, val, offset);
	if (ret)
		return ret;

	info->reg_output[bank] = val;

	return 0;
}