Thunderbolt images brought in from the SPI don't have a FARB header.
Thunderbolt update images do.
So these two types of images need to be handled separately from the
firmware parser.
Remove it's references to it's own GUdevclient and instead use
FuUdevDevice.
Some intentional casualties of the move:
* Plugin metadata around native and safe mode dropped.
- These haven't been useful in debugging anything and aren't relevant
on new hardware
* Extra GUID for 2 host controllers in same system dropped
- Although this was normally static information BIOS operations like
turning off PCI-E SD card reader or LAN controller changed things.
* The NVM version is parsed directly instead of through gudev to prevent
cached data breaking change events.
Remaining TODO:
* Force power w/ thunderbolt-power doesn't work
We don't actually need either of the things it provides (looking up in source
and built, and converting to an absolute path) so just replace it with
g_build_filename() instead.
This also has the advantage that it does the right thing on Windows.
There are commits to the Thunderbolt kernel driver that make sure
that the upgrade process goes smoothly. If these commits aren't
present then it will look like a fwupd problem, when it's actually
a kernel problem.
When this issue was reported it appeared that commit
e4be8c9b6a
was missing from the locally tested kernel, but it's impossible
to determine that from userspace.
Prevent running the thunderbolt plugin on older kernels than that
set in `$sysconfdir/fwupd/thunderbolt.conf`.
By default that is set to 4.13.0, but if a distribution vendor has
backported all the necessary support it can be decreased to a lower
version for distro packages.
Thunderbolt has a new kernel interface starting from version 4.13,
which simplifies updating the host controller and devices: the
kernel now exposes a sysfs interface for the non-volatile memory
as a device node. This can be used to write the new firmware blob.
Updates are then triggered also via a simple write to a sysfs
file (nvm_authenticate), which in turn is also used for error
reporting.
The plugin should be functionally, but a few items are missing:
- image verification
- safe mode handling
Automake and autoconf are impossible to fully understand and Meson now provides
everything we need for a much smaller, faster, and more understandable build.
See http://mesonbuild.com/ for more information.
