Commit Graph

98 Commits

Author SHA1 Message Date
Bananymous
181478119e Kernel: Paging is now enabled by boot.S 2023-01-10 17:53:29 +02:00
Bananymous
c6467b8ebc Kernel: Multiboot data and kernel command lines are now global variables 2023-01-10 17:50:24 +02:00
Bananymous
efd8638a96 Kernel: Improve kernel panic message and rename it 'panic'->'Panic' 2023-01-09 21:57:03 +02:00
Bananymous
531f470132 Kernel: Add helper to map pages with base address and size
This allows us to easily map enough pages for buffer with known size

VESA driver can now allocate enough memory for whole framebuffer if it
doesn't fit in a single page (1920x1080 for example)
2023-01-05 03:44:41 +02:00
Bananymous
086f0c7cf6 Kernel: Better error reporting from VESA and fix texmode rendering 2023-01-05 03:36:20 +02:00
Bananymous
d6623def32 Kernel: Paging uses now PAE with 2 MiB pages 2023-01-05 02:00:18 +02:00
Bananymous
9d9a6b2fec Kernel: VESA can now print 8x16 bitmaps 2022-12-30 20:47:25 +02:00
Bananymous
f51ca4b642 Kernel: Rewrite IDT exception kernel panic message 2022-12-30 20:03:09 +02:00
Bananymous
fc05642b74 Kernel: Make Render from buffer public tty function 2022-12-30 19:57:44 +02:00
Bananymous
ef0b2010e0 Kernel: Add basic PS/2 Mouse driver 2022-12-30 19:38:21 +02:00
Bananymous
3c92aa45fb Kernel: 'cpuinfo' command in shell now shows wheter you are running on 64-bit cpu 2022-12-28 19:46:37 +02:00
Bananymous
267367333e Kernel: Move paging code to a helper 2022-12-28 19:01:01 +02:00
Bananymous
5d7a767f8b Kernel: Enable basic paging 2022-12-28 04:17:34 +02:00
Bananymous
3e8590687f Kernel: Cleanup code and move kmalloc initialization to later 2022-12-28 04:16:21 +02:00
Bananymous
9169020ad2 Kernel: Remove unnecessary checks from GraphicsPutCharAt() 2022-12-27 18:29:51 +02:00
Bananymous
620b836fc3 Kernel: VESA now somewhat handles Cursor in Graphics mode 2022-12-27 18:29:02 +02:00
Bananymous
2d46281c16 Kernel: TTY scroll is now done using memmove
This will be faster when memory functions will be optimized
2022-12-27 17:45:47 +02:00
Bananymous
5ae1fc58e9 Kernel: Clean code in tty and vesa 2022-12-27 17:22:45 +02:00
Bananymous
2535eb1c4c Kernel: TTY now handles keeping terminal buffer
VESA Driver cannot scroll anymore, this is handled by tty
2022-12-27 17:06:33 +02:00
Bananymous
f7eb85babd Kernel: IDT exceptions print better errors now 2022-12-23 15:56:10 +02:00
Bananymous
d8fd6afd12 Kernel: Make TTY a class 2022-12-23 15:55:45 +02:00
Bananymous
3f7a61a4d2 Kernel: VESA driver has now second buffer for fast scrolling
This allows us to not read from video memory, since it was very slow

I also implemented fast path for graphics clearing and scrolling if bpp is 32
2022-12-20 14:02:44 +02:00
Bananymous
5e2680cade Kernel: You can now disable APIC from the grub commandline 2022-12-20 11:57:09 +02:00
Bananymous
c82caacbaa Kernel: Cleanup APIC code
APIC seems to work on my main machine, but not on other one
2022-12-20 04:45:46 +02:00
Bananymous
64a5a28ff0 Kernel: Add time since boot to Shell 2022-12-19 11:46:38 +02:00
Bananymous
c8866aa88b Kernel: Move GDT and IDT assembly to inline assembly 2022-12-19 11:46:38 +02:00
Bananymous
0bdb01ee04 Kernel: Replace PIC with APIC
If APIC/IOAPIC is not found, we fallback to PIC

Interrupts don't seem to work on real hardware (?)
2022-12-19 11:46:25 +02:00
Bananymous
f244728d33 Kernel: Add unicode support 2022-12-16 03:55:13 +02:00
Bananymous
6fe0d04f07 Kernel: Implement basic VESA Graphics mode driver
We now support VESA Graphics mode with some bitmap fonts
2022-12-16 00:47:03 +02:00
Bananymous
9274c9ee2f Kernel: Abstract TTY to use new VESA 2022-12-15 19:05:07 +02:00
Bananymous
a2d38af37a Kernel: Implement 'cpuid' and enumerations for features 2022-12-15 17:28:54 +02:00
Bananymous
f6def7a747 Kernel: initialize every irq handler to nullptr 2022-12-13 00:57:48 +02:00
Bananymous
5f75479861 Kernel: zero initialize VGA_MEMORY and fix colors 2022-12-13 00:56:30 +02:00
Bananymous
e1a15a4989 Kernel: Add video mode request for bootloader 2022-12-10 03:55:24 +02:00
Bananymous
03e7812cae Kernel: Add basic ANSI support :) 2022-12-10 03:53:44 +02:00
Bananymous
3d3f12bd30 Kernel: Add new generic Printer class
kprint is now just a #define to Printer::print<terminal_putc>.

This allows us to use same print formatting for serial output :)
2022-12-10 00:57:09 +02:00
Bananymous
5ba7af2cf6 TTY: Treat tabs as spaces 2022-12-08 17:50:44 +02:00
Bananymous
e998615253 Kernel: Move GDT and IDT files to architecture specific folder 2022-12-08 17:50:04 +02:00
Bananymous
998184e288 Kernel: TTY now handles '\b' 2022-12-07 04:35:02 +02:00
Bananymous
4202c999fa Kernel: IRQs are now working :) 2022-12-07 02:48:44 +02:00
Bananymous
123382eace Fixes :) 2022-11-15 21:42:14 +02:00
Bananymous
7c06c75d6c Move cursor in terminal when writing to it 2022-11-15 09:26:14 +02:00
Bananymous
3bc4d7d39b Rename .s extensions to .S 2022-11-15 09:25:18 +02:00
Bananymous
d289916bc0 Changed back to lower half kernel, since im dump.
I dont see the benefit of higher half (and could not get multiboot info)
2022-11-15 00:38:33 +02:00
Bananymous
b185ed4fd3 Libc is now written in C++ 2022-11-14 00:31:24 +02:00
Bananymous
fd13f74bbf Changed into higher half kernel
https://wiki.osdev.org/Higher_Half_x86_Bare_Bones
2022-11-13 02:03:20 +02:00
Bananymous
61609db228 Kernel is now in C++ :) 2022-11-12 21:30:26 +02:00
Bananymous
e6b4866ab0 Initial commit. We have a booting kernel 2022-11-12 21:04:47 +02:00