[HDMI2USB] Add USB 3.0 support

[mithro]

More technical details at;

• HDMI2USB-misoc-firmware#159
• HDMI2USB#83

Brief explanation

Add USB3.0 support to the HDMI2USB-misoc-firmware to allow high speed capture.

Expected results

Able to capture video from a HDMI2USB device at USB3.0 speeds.

Detailed Explanation

The current USB2.0 interface that is on the current HDMI2USB devices is only capable of capturing at 720p30 frame rate. USB3.0 has significantly more bandwidth which would allow much higher capture resolutions.

Adding USB3.0 support would be a multiple step process;

• First it would be Port daisho USB3.0 core to Xilinx Parts
• This would require the creation of a USB3.0 TOFE expansion card
• It might require Port Dashio USB3.0 core to use FPGA high speed transceivers

Further reading

• https://github.com/mossmann/daisho/tree/master/sw/fpga/common/usb3
• https://github.com/mossmann/daisho/blob/master/sw/fpga/common/usb3/readme.txt

Contacts

• Potential Mentors: @shenki @mithro @enjoy-digital
• Mailing list: hdmi2usb@groups.google.com

[mithro]

@enjoy-digital Is working on stuff related to this, so closing it.