The Institute of Embedded Systems at ZHAW has developed an open source adapter which allows streaming of a CSI-2 Camera interface to a Raspberry Pi. This allows connecting cameras with CSI interface via a long distance cable (up to 15m) to the CSI-2 input of a Raspberry Pi.
The long range adapter uses FPD-Link III high-speed video transmission technology by utilizing the existing MIPI CSI-2 interfaces of cameras and Raspberry Pi. A deserializer converts the FPD-Link III signal to CSI, is based on the DS90UB954 from Texas Instruments (TI). The counterpart located at the Raspberry Pi camera is based on the serializer DS90UB953 from TI. With these two components it is possible to transmit high-speed video data over a single coaxial cable which can be up to 15 meters long. Another advantage of FPD-Link III is the power over coax (PoC) capability, which transmits the power required for the camera sensor directly from the Raspberry Pi.
The schematics and PCB designs are open source and available here.
A driver for the Texas Instruments DS90UB95x serializer and deserializer can be found in our blog Linux Driver for TI DS90UB95x FPD-Link III serializer and deserializer