Exemplos de i2c_slave_rb_clear em C++ (Cpp)

Exemplo n.º 1

Arquivo: i2c_slave_core.c Projeto: Coder-taotao/liboot-tz

static int i2c_slave_open(struct inode *inode, struct file *fd)
{
	int ret;
	unsigned int id;
	i2c_slave_device_t *dev;
	id = iminor(inode);

	if (id >= I2C_SLAVE_DEVICE_MAX) {
		ret = -ENODEV;
		goto error;
	}

	dev = i2c_slave_device_find(id);
	if (!dev) {
		ret = -ENODEV;
		goto error;
	}

	i2c_slave_rb_clear(dev->receive_buffer);
	i2c_slave_rb_clear(dev->send_buffer);

	if (i2c_slave_device_start(dev)) {
		ret = -EBUSY;
		goto error;
	}

	fd->private_data = (void *)dev;
	ret = 0;

      error:
	return ret;
}

Exemplo n.º 2

Arquivo: i2c_slave_device.c Projeto: R0-Developers/YP-R0_Kernel

int i2c_slave_device_write(i2c_slave_device_t *device, int num, u8 *data)
{
	int write_num, write_total = 0;
	int step = 1000;
	u8 *buf_index = data;
	write_num = i2c_slave_rb_produce(device->send_buffer, num, buf_index);
	write_total += write_num;
	buf_index += write_num;
	step--;
	while (write_total < num && step) {
		set_current_state(TASK_INTERRUPTIBLE);
		schedule_timeout(HZ / 10);
		if (!signal_pending(current)) {
		} else {
			 /*TODO*/ step = 0;
			break;
		}
		write_num =
		    i2c_slave_rb_produce(device->send_buffer, num - write_total,
					 buf_index);
		write_total += write_num;
		buf_index += write_num;
		step--;
	}
	while (step && i2c_slave_rb_num(device->send_buffer)) {
		set_current_state(TASK_INTERRUPTIBLE);
		schedule_timeout(HZ / 10);
		if (!signal_pending(current)) {
			step--;
		} else {
			 /*TODO*/ step = 0;
			break;
		}
	}
	if (!step) {
		write_total -= i2c_slave_rb_num(device->send_buffer);
		i2c_slave_rb_clear(device->send_buffer);
	}
	return write_total;
}