7e6dbad05f
sched: complete rework of context switching
...
The old strategy was to only do context switching
from within the PendSV handler. This worked fine
until now because all syscalls were handled either
atomically or just returned -EAGAIN if the
resource was locked or busy. However, with the
introduction of I/O wait, we need to be able to
sleep directly from within the kernel by moving
the context switching completely into the kernel.
2021-08-08 20:48:55 +02:00
60f1ebea8a
arch: use CMSIS after all
...
It was inevitable, tbh. I really wanted to do
everything entirely from scratch, but all those
hardware registers are just too much to be
maintained by a single person. And since i plan
on supporting different boards at some point in
the future, it would be complete madness to redo
everything for that board.
2021-08-07 14:30:09 +02:00
b4046795c8
list: fix shit
2021-08-05 17:11:54 +02:00
6287cb79be
stdint.h: now even less POSIX-noncompliant!
2021-08-05 16:16:16 +02:00
6d886d7252
syscall: refactor names
2021-08-05 16:15:35 +02:00
6e269e0217
sched: refactor and implement sleep
2021-08-05 16:14:18 +02:00
4359f43b0e
kevent: refactor callback system
2021-08-04 15:46:51 +02:00
b053cc3279
list: fix list_for_each_entry_safe
2021-08-04 03:30:29 +02:00
203c167822
kevent: add device kevent
2021-08-04 03:29:52 +02:00
f89aa9dc4e
sched: add idle task
2021-08-04 03:25:04 +02:00
e291a51d2f
kevent: add event system
2021-08-03 22:44:28 +02:00
528785d40e
malloc: track memory usage and clarify docs
2021-08-03 17:35:58 +02:00
05662bc39e
arch: add fault handlers, rename exceptions
2021-08-03 14:41:36 +02:00
7fa55c8dab
mutex: return -EAGAIN if trylock fails
2021-08-03 00:07:39 +02:00
552688b9a0
atom: fix stupid memory leak
2021-08-02 17:21:56 +02:00
c36c2182d7
sched: minor refactor
2021-08-01 23:32:12 +02:00
5a220eee5d
fix build (once again)
2021-08-01 23:29:04 +02:00
7ef26f26e9
syscall: add config option to check syscall source
2021-08-01 23:28:25 +02:00
0eea347421
build: actually use linker scripts
2021-08-01 22:53:05 +02:00
4db1702078
stdio: refactor printk to printf and friends
2021-08-01 18:53:22 +02:00
02286058d6
io: declare kstdin and kstdout in header
2021-08-01 17:06:56 +02:00
abb526f655
stddef: add typeof macro
2021-08-01 17:06:08 +02:00
3aa2c53893
stdint: use correct typedefs
2021-08-01 17:05:37 +02:00
caefad25a8
build: parameterize serial config macros
2021-08-01 16:51:06 +02:00
f54a4a0fa9
mutex: use uint8_t instead of int for lock value
2021-08-01 16:48:19 +02:00
d20da423ec
fs: implement file abstraction
2021-08-01 04:22:09 +02:00
9ca76d71ad
mutex: add mutex imlementation
2021-08-01 03:25:28 +02:00
a78a8ba59b
atom: reimplement in pure assembly
2021-08-01 00:11:13 +02:00
643d3ed251
build: migrate to CMake
2021-07-31 19:39:51 +02:00
fc63785ca6
kent: simplify structure
2021-07-31 15:58:29 +02:00
8b3a5fd68d
sched: integrate into kent hierarchy
...
This is an initial, rudimentary attempt at integrating the scheduler
into the kent hierarchy. There are likely gonna be drastic changes
in the future, and i haven't even tried running the whole thing.
But hey, the code compiles again now!
2021-05-11 14:31:05 +02:00
f0dc3a3433
kiss capitalism goodbye for good
...
The CNPL will make sure that absolutely no corporation is going to get
anywhere near Ardix -- exactly as it should be. Fuck you, corporations!
2021-05-10 16:19:38 +02:00
dca3e716ca
serial: add zero-copy dma i/o api
2021-03-01 16:08:01 +01:00
ec3b64d232
string: move header to standard location
...
Anything that implements POSIX should also be where POSIX defines
it to be, otherwise it would be pretty useless lol
2021-02-28 18:27:43 +01:00
298433e15f
fix the stupid symbol attribute mess, pt. 1
2021-02-28 18:08:08 +01:00
af8210da4a
piss off capitalism
...
Ardix is being relicensed to GPL v3 or later. I have no idea whether you
can just do this if you feel like it or if it has any consequences, but
i kinda don't really care that much about it. Any changes made after
this commit will definitely fall under the GPL though, and considering
that only few things are really working yet anyways this is good enough
for me.
2021-02-28 02:18:39 +01:00
4349420217
kent: redesign api
...
This also got the dmabuf refcount hard fault issue resolved somehow.
Don't ask how or why, i'm just glad it works now.
2021-02-28 01:28:07 +01:00
5fa7639ce8
syscall: c syntax do be hard tho
2021-02-27 21:24:26 +01:00
b7abbf1cf7
kent: change param order of kent_init
2021-02-17 15:01:15 +01:00
b8c4593fc5
syscall: use vararg declaration
2021-02-17 14:30:24 +01:00
Felix Kopp
e79f9d5165
errno: implement strerror
...
i defo need to check my priorities but i wanted to play around with
awk and the errno cli tool so leave me alone
2021-02-03 04:58:04 +01:00
Felix Kopp
c4717d8fce
dma: add abstraction layer for dma
2021-02-03 04:30:46 +01:00
Felix Kopp
256b49b529
device: add base abstraction for all devices
2021-02-03 04:01:27 +01:00
Felix Kopp
56c76d8b4b
sched: use proper UNIX® terminology
2021-02-01 00:07:45 +01:00
Felix Kopp
50928211ca
minor fixes and improvements
2021-01-07 19:04:52 +01:00
Felix Kopp
4a3e33dc05
sycall: conform to POSIX
2021-01-07 12:29:45 +01:00
Felix Kopp
5555a3d56d
cleanup and fix warnings
2021-01-05 17:50:46 +01:00
Felix Kopp
63ccd87112
arch/at91sam3x8e: finalize entry routine
2021-01-05 17:31:26 +01:00
Felix Kopp
8252f14b6b
arch/at91sam3x8e: use r0 for syscall number
2021-01-05 15:30:36 +01:00
Felix Kopp
dee9ce667f
write: actually write to the serial console
2021-01-05 14:40:18 +01:00
