We only support 4 total chain entries at the moment, but that can be
"easily expanded"... We don't really have a lite dynamic vector, just
the big fat dynamic lists, so improving on this needs some extra effort.
This commit also drags in a bunch of random network work by necessity.
This doesn't include a userland interface, but it does include a couple
of commands for the debug shell. ac97_status, which shows some register
and port values for the ac97 and ac97_noise which attempts to play a
(very annoying) 440Hz sine wave through the sound card.
Yutani, glogin, and wallpaper now use timing information from the kernel
to perform animations. Some animation lengths have been adjusted. The
animations should run at the same speed, though with varying
"smoothness" across different hardware (including non-KVM emulators).
- The kernel version has been bumped to 0.9.0
- The timer resolution in the kernel has been increased to millseconds.
- The preemptive scheduling interval has been descreased to one
millisecond.
- Relative sleep continues to use 10 millsecond intervals for legacy
reasons.
- `gettimeofday` now uses the internal tick counter to calculate the
current time. Drift is calculated from the CMOS every 5 seconds and
applies only to `gettimeofday` and other places that use it.
- The resolution of timing information provided by debug functions has
been increased to three digits (milliseconds).
- The resolution of timing information provided by the procfs uptime
virtual file has been increased to three digits (milliseconds).
- Functions have been added to the debug shell to read the TSC. The TSC
is not used in timing functions at this time.
