Commit Graph

57 Commits

Author SHA1 Message Date
Kevin Lange
9a72bfc4cd Add half-assed support for IRQ chaining.
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.
2015-05-18 21:07:06 -07:00
Kevin Lange
648aedc0a4 Use a different resynch strategy for timer 2015-05-01 23:01:12 -07:00
Kevin Lange
7344a50fe0 Major changes to timing interfaces
- 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.
2015-04-14 23:05:07 -07:00
Kevin Lange
d3cddf169a And then some more magic to merge the vimhints and the copyright headers 2014-06-07 23:58:31 -07:00
Kevin Lange
1287af81ef Reinsert vim hints magically 2014-06-07 23:51:01 -07:00
Kevin Lange
71fa8d5185 ... missed a couple 2014-06-07 23:48:18 -07:00
Kevin Lange
a2ed4b4f0e strip vim: lines from kernel 2014-06-07 23:43:21 -07:00
Kevin Lange
ef7d72c1e1 License headers and a tool to generate them 2014-06-07 23:13:29 -07:00
Kevin Lange
b824abf250 Kill lwip stuff; add back in native rtl driver
Now with actual working stuff.
2014-05-06 22:14:05 -07:00
Kevin Lange
fe19f4ad19 Extensive syscall table cleanup 2014-05-02 18:47:41 -07:00
Kevin Lange
9b2d31f51f make pci_scan take an extra arg 2014-04-10 23:34:55 -07:00
Kevin Lange
1e91dea4cc Move rtl experiments into separate module 2014-03-24 20:00:16 -07:00
Kevin Lange
0a08fa257e Partition mappings 2014-03-16 18:39:03 -07:00
Kevin Lange
ee30393e48 Keyboard + Mouse as modules 2014-03-16 15:13:27 -07:00
Kevin Lange
984fa1d4c6 EXT2 backed by block device
WARNING: THIS BREAKS PARTITIONS

Until I get partition maps and can produce device entries like
/dev/hda1, partitions will be broken, so DON'T TRY TO BUILD AN IMAGE
WITH THE IMAGE BUILDER.

Hopefully this is all rectified in under 24 hours...
2014-03-16 01:33:01 -07:00
Kevin Lange
d42617020f random rtl network stuff, not working yet 2014-02-26 21:00:16 -08:00
Kevin Lange
f5be45a2c9 lots of legacy cleanup 2013-12-15 21:33:46 -08:00
Kevin Lange
ebe1c24dbd Some sort of PCI subsystem, maybe 2013-12-12 23:40:52 -08:00
Kevin Lange
8dfd4ff20a Make serial devices more useful
They now use interrupts and thus can be blocked on without sitting in a
busy loop. Not sure if they still work perfectly, need to debug. Works
fine with the console "serial" stuff in qemu.

Todo: Investigate further.
2013-11-27 19:10:38 -08:00
Kevin Lange
046d972694 docs 2013-07-11 18:17:26 -07:00
Kevin Lange
e70ebf8857 Big fat cleanup and GCC fix batch 2013-06-05 23:10:36 -07:00
Kevin Lange
409052e568 Free that temp block... 2013-04-23 23:05:57 -07:00
Kevin Lange
a2a890e1a8 Fresh new VFS syscalls: unlink, chmod, umask 2013-04-23 01:14:33 -07:00
Kevin Lange
9901767cbe Retry failed reads 2013-04-21 20:46:48 -07:00
Kevin Lange
ade59a11bc XXX ABI BREAKING CHANGE - New load/heap/stack/shm
Address for program loading, kernel heap, userspace SHM regions, and
stacks have been changed.

Delete:
  toolchain/build
  toolchain/local
  .userspace_check

Run:
  python userspace/build.py clean
  make clean-disk
  make clean
  ./build.sh
2013-04-21 17:35:03 -07:00
Kevin Lange
2de26fafe1 Lazy FPU/SSE, more correct-er 2013-04-16 00:03:23 -07:00
Kevin Lange
41030465a8 Save/restore sse (poorly) 2013-04-15 23:23:56 -07:00
Kevin Lange
3871cfcf31 Fix up the serial console so it works again 2013-04-15 01:26:03 -07:00
Kevin Lange
bc2e4741c7 Random bits and pieces 2013-03-22 15:11:19 -07:00
Kevin Lange
3a977369af Timed process sleeping (and bug fixes) 2012-12-10 20:28:31 -08:00
Kevin Lange
0e3c9f1241 Fix leap year calculation 2012-12-09 17:08:03 -08:00
Kevin Lange
cd929b1ceb Fix some minor input issues 2012-12-08 00:24:43 -08:00
Kevin Lange
a5b00112af Add tick counts 2012-12-07 19:06:43 -08:00
Kevin Lange
a9d895a923 unify logging 2012-12-07 18:33:07 -08:00
Kevin Lange
a201ea07b1 Clean up kernel/devices/kbd
Remove a bunch of unused macros and variables.
2012-12-04 15:41:01 -08:00
Kevin Lange
50ea1462c3 Fix IDE on new qemu, virtualbox 2012-12-02 21:43:54 -08:00
Kevin Lange
c9448437dc Fix long-standing issues in qemu/bochs
and possibly other environments - fixes the long-standing issue with
keyboard/mouse getting disabled sometimes on bootup, especially if you
tried to interact with the qemu window during the boot process
2012-11-30 19:32:38 -08:00
Kevin Lange
ed5b9543fb Big commit: Serial console
* fix some terminal bugs (some, not all)
* add a serial device to the VFS
* fix up serial so it works better
* add a serial-console application
* fix a bug in some other stuff relating to allocations
* change size of the terminal described by toaru.terminfo
* adds a new system call
2012-11-28 23:05:19 -08:00
Kevin Lange
5fc2a56c05 Meh.
I'm trying to get PATA access to work on real hardware (and in
VirtualBox, specifically), but it's not working out well. Unless there's
a major breakthrough tomorrow, I'm going to set it aside for a while.
2012-10-17 22:23:10 -07:00
Kevin Lange
5e39fe9bfa Fix something I failed to clear out. 2012-10-14 20:27:04 -07:00
Kevin Lange
7d5eb42400 Userspace keyboard handling
Kernel driver sends raw scancodes, compositor or terminal handle the
rest. Support for F* keys will be added soon, in the mean time userspace
applications can know about the status of modifiers (control, shift,
alt, and super).

Compositor actions have been changed to Alt+Left Click for move and
Alt+Middle Click for resize. I'll work on adding more mouse events once
I get them to be faster (they're annoyingly slow at the moment... I want
more accuracy and less latency).
2012-10-14 19:53:16 -07:00
Kevin Lange
77ed41c225 kernel vga term, commas in arguments, ide fixes 2012-10-03 22:03:21 -07:00
Kevin Lange
2eb953f1f1 Massive fixes to the EXT2 driver.
* Works with different block sizes
* Works with different inode sizes
* Tested on a real EXT2 file system made with mkfs.ext2

* MBR reading is available
* You can specify a partition with hdd=0 or hdd=1 etc.

* If you make a "real" disk image, you can get GRUB installed in
  its MBR, toss in a suitable config file, and boot right off the
  disk rather than having to use QEMU to boot the kernel or using
  some silly CDROM ramdisk nonsense.
2012-09-29 00:39:01 -07:00
Kevin Lange
e1beca4127 CPU detection moved to userspace app 2012-02-19 19:39:18 -06:00
Kevin Lange
a72f9bc7cf Fix stack bug. 2012-02-16 14:31:40 -06:00
Kevin Lange
6590b285b5 Mouse improvements (stability, scaling) 2012-02-04 22:29:46 -06:00
Kevin Lange
78e96435ad [util] Script to run fullscreen 2012-02-03 12:23:49 -06:00
Kevin Lange
aac1d78e35 Drop packets from the mouse if the client isn't reading fast enough 2012-02-02 20:37:50 -06:00
Kevin Lange
4366a20a8f Pipe and packet-based mouse device 2012-02-02 16:16:29 -06:00
Kevin Lange
89d9265c73 Actually deschedule processes when they are waiting 2012-01-31 19:27:38 -06:00