The reason behind this is that an RTC driver should ideally consult ACPI
tables before assuming any I/O ports exist, which userspace can do much
better.
The PC speaker device is not a general purpose audio device, but only
capable of playing beeps. While pcspkrd does currently get built, it
never actually gets started at startup. There is also no program
anywhere inside Redox OS capable of playing any sound through pcspkrd.
And finally basically the thing it is used for on modern systems is to
emit a beep when pressing backspace in a VT while there is no input
buffered. I personally find that beep rather annoying and have disabled
the Linux counterpart to pcspkrd on my system because of this.
This allows a single PCI daemon to run on the whole system, prevents
multiple drivers from claiming the same PCI device and makes it possible
for userspace to enumerate all available PCI devices. In the future this
will enable an lspci tool, possibly PCIe hot plugging and more.
Co-Authored-By: 4lDO2 <4lDO2@protonmail.com>
While for now this for now only includes helpers for the current limited
display interface which is relatively simple to implement manually, in
the future we will likely need a more complex interface with gpu drivers
that would be hard to get right without a common crate proving the
interface.
This unifies the driver interface handling between graphics drivers and
makes it easier to change all graphics drivers in lockstep when adding
new features.
The daemon responsible for the boot log must never ever block to avoid
deadlocks, but doing so while still accepting keyboard input is
non-trivial. This commit splits the boot log out from fbcond into a
separate daemon to make this a lot easier to implement. This will also
allow making fbcond blocking again, which will simplify some things.
This will in the future allow switching between graphical mode and text
mode virtual terminals while keeping alternative graphics drivers like
virtio-gpud enabled at all times rather than having to reset back to VGA
mode every time.
Filippo Mutta