There was some regression between 1.4.0 and now that prevented updates
containing a Thunderbolt controller from finishing. They would just
sit pending Thunderbolt replug without ever finishing.
Remove the old hack for replug and instead push activation to the end
of the composite steps.
This is to avoid the device tree from changing significantly during
the update process.
This still isn't really ideal, we want to be able to add the flag
usable-during-update to the thunderbolt controller, but this requires
some extra work in the kernel.
Some plugins have devices with more than one protocol. Logically the protocol
belongs to the device, not the plugin, and in the future we could use this to
further check firmware that's about to be deployed.
This is also not exported into libfwupd (yet?) as it's remains a debug-feature
only -- protocols are not actually required for devices to be added.
Future metadata from the LVFS will set the protocol the firmware is expected to
use. As vendors love to re-use common terms like DFU for incompatible protocols,
namespace them with the controlling company ID with an approximate reverse DNS
namespace.
This also allows more than one plugin to define support for the same protocol,
for instance rts54hid+rts54hub and synapticsmst+dell-dock.
Although this is (currently) slower to flash with, bad behavior
and corner case scenarios such as these don't occur:
* Flickering during enumeration
* Monitor plugged in during enumeration but not during flash
* Heavy DP traffic slowing down update significantly
* Sandboxes without access to `/dev/drm_dp_auxY` unable to flash
* Exercising existing graphics driver bugs leading to system freezes.
Additionally this removes a lot of code in dell_dock that was put
in place specifically to be able to support waking up the MST hub
to try to use DP aux for flashing.
Now DP aux will only be used to flash when fwupd is compiled
without `dell_dock`.
This plugin requires infrastructure introduced in fwupd 1.1.3
and can not be backported to earlier versions of fwupd.
It works together with the Synaptics and Thunderbolt plugins to
coordinate the proper flashing procedure for devices in this dock.
