I2C_SDA
device->i2c_reg |= I2C_SDA;
device->i2c_reg &= ~I2C_SDA;
return reg_read32(REG_I2C_CONTROL) & I2C_SDA; // I2C_SDA is 0x01
device->i2c_reg |= I2C_SCL | I2C_SDA;