Commit Graph

290 Commits

Author SHA1 Message Date
Bananymous 0ce9fd8597 Kernel: StorageDevices and Controllers are now devices 2023-03-30 14:22:15 +03:00
Bananymous c9badb5a1c Kernel: Add IFBLK, IFLNK, IFSOCK to Inode::Mode 2023-03-30 13:15:46 +03:00
Bananymous a513bc5749 Kernel: All devices have atime, mtime, ctime at their creation 2023-03-30 13:15:46 +03:00
Bananymous 5d5487315f Kernel: Remove the mount test from VFS 2023-03-30 11:43:24 +03:00
Bananymous 3508df67b1 Kernel: fix stat command and device numbers 2023-03-30 10:43:08 +03:00
Bananymous 06ce1f0667 Kernel: Rewrite mounting code 2023-03-29 21:34:48 +03:00
Bananymous 1fb8c211f0 Kernel: Move Partition out of StorageDevice and rename functions 2023-03-29 13:23:01 +03:00
Bananymous 9c7670847e Kernel: Shell commands 'ls' and 'stat' recognize character devices 2023-03-29 11:56:33 +03:00
Bananymous a24c2d9be2 Kernel: DeviceManager is now a 'FileSystem' so it can expose devices
Shell reads keyboard through /dev/input :)
2023-03-29 11:50:46 +03:00
Bananymous 7f90079ea7 Kernel: Fix keymap numlock behaviour 2023-03-29 03:18:22 +03:00
Bananymous f4b4987d43 Kernel: Remove obsolete KeyboardLayout/
This was used by the old input system. Currently keyboard layout is
hardcoded to finnish. But it will be reworked as something read from
the filesystem
2023-03-29 03:09:14 +03:00
Bananymous ac094a48d6 Kernel: Rework the whole input system
We now use Device abstraction that will allow us to provide devices
to userspace through /dev. Currently Shell reads from first and only
device (it being PS/2 Keyboard).
2023-03-29 03:05:16 +03:00
Bananymous f9a0412e78 Kernel: ACPI unmap_header does not do anything
We have to work with MMU mapping/unmapping to be user friendly
2023-03-28 02:56:44 +03:00
Bananymous 2f8c9746e3 Kernel: Move ACPI to its own file 2023-03-27 17:30:45 +03:00
Bananymous f8a2c60c8d Kernel/BAN: move unix time conversion to BAN and add stat to Shell 2023-03-27 00:49:58 +03:00
Bananymous 770f7716a0 Kernel: Rework processes and VFS so we don't expose inodes
Everything is now done through a file descriptor.
2023-03-26 04:30:57 +03:00
Bananymous d67de70126 Kernel: Process::working_directory() is now thread safe
I realized you cannot return a stirng view and it to be thread safe
2023-03-24 01:46:25 +02:00
Bananymous 6f334756c5 Kernel: Create RecursiveSpinLock and add it to Process
We now lock every function within Proccess, just to be sure.
Recursive lock allows us to use lock from the same thread even if
we already have the spinlock locked
2023-03-24 01:32:35 +02:00
Bananymous 310713d203 Kernel: Lock process functions instead of the ata controller
Process has to use locks at least on some functions so multithreaded
disk io is safe. This seemed to fix corrupted reads from disk
2023-03-24 01:17:39 +02:00
Bananymous 7d2ab53baa Kernel: Ext2FS now does allocations better
We only have to allocate at the beginning of the all functions and
can properly exit before any disk reads if we run out of memory.

This makes development little bit 'harder' since the {read,write}_block
user must allocate a buffer of atleast block_size bytes.

I also made disk access to cause kernel panic on error since the error
handling during file write is something I don't want to think now.
The filesystem can easily corrupt so, I feel like when disk io starts
to fail I'll come back to this.
2023-03-23 23:22:31 +02:00
Bananymous 2152b8b95f Kernel: Add possibiliity to create empty files on Ext2
Big rewrite for Ext2 for more easy and optimized code
2023-03-23 22:26:06 +02:00
Bananymous 4fd21bc303 Kernel: Remove block group descriptor cache from ext2fs
This will make improving the fs easier since we need to only update
the values on the disk
2023-03-23 18:52:58 +02:00
Bananymous 15037bfc7a Kernel: Move get_unix_time to RTC namespace 2023-03-23 18:14:51 +02:00
Bananymous 3572e9794a BAN: Modify Span constructors to keep constness correctly 2023-03-23 14:26:03 +02:00
Bananymous 6ed9651176 Kernel: StorageDevice and Ext2 "support" writing 2023-03-23 13:04:13 +02:00
Bananymous 3efbe22a1b Kernel: Shell now prints unix time with 'date' command 2023-03-23 11:13:51 +02:00
Bananymous 96579b88cf Kernel: Cleanup GPT parsing code 2023-03-23 11:13:14 +02:00
Bananymous 2ec18855f2 Kernel: TTY buffer is resized on font size change
Shell also has better line wrapping. You still can't visually go
back to previous line, but atleas we now write from the beginning
of the line
2023-03-22 02:09:22 +02:00
Bananymous b222581d18 Kernel: Reading from fd verifies that file is opened for reading 2023-03-22 01:55:58 +02:00
Bananymous a8e3ee6f19 Kernel: Ext2 directory functions now fail on invalid blocks
Invalid blocks should only happen while writing to a file and
I think in that case we should just bail out instead of giving
you incomlete inode list or search result.
2023-03-22 01:55:57 +02:00
Bananymous a083e588ba Kernel: cksum uses now a different crc32_table to match linux 'cksum' 2023-03-22 01:55:21 +02:00
Bananymous 9b500842a0 Kernel: Ext2 can now read from non-block-size aligned offsets 2023-03-21 19:19:17 +02:00
Bananymous b21348379f Kernel: Remove obsolete Ext2FS::ext2_root_inode()
This was not used by anyone and the cast was wrong anyway
2023-03-21 18:19:48 +02:00
Bananymous 633055293e Kernel: Remove for_each_block from Ext2 2023-03-21 18:14:02 +02:00
Bananymous ae9d618803 Kernel: Cleanup font parsing
We use now the LittleEndian<> wrapper for PSF2 header and no more
magic constants in code
2023-03-20 19:48:08 +02:00
Bananymous faf1b661bb Kernel: prefs font does not allocate extra buffer 2023-03-20 19:48:01 +02:00
Bananymous 22e45278a2 Kernel: Fix PC Screen font parsing
I had misread the format and the parsing code was incorrect. I also
changed fonts to store unicode codepoints as 32 bit integers, so
every character can be represented
2023-03-20 14:52:42 +02:00
Bananymous 43f4657566 Kernel: Font parsing uses Spans now 2023-03-20 13:35:54 +02:00
Bananymous 39b560fde3 Kernel: Add basic mounting to VFS. 2023-03-19 05:51:25 +02:00
Bananymous 76d5364a55 Kernel: Add comparison operator for inodes 2023-03-19 03:34:23 +02:00
Bananymous b41491e205 Kernel: Add cksum to Shell for file read testing
I also removed the 'using namespace BAN'
2023-03-18 03:50:24 +02:00
Bananymous 8236598f9d Kernel: Optimize Ext2 disk reads
We used to read whole file until we reached the asked offset.
Now we can calculate the appropriate block and read just the asked data.
2023-03-18 03:47:59 +02:00
Bananymous 1a26a318a4 Kernel: Rework filesystem reading
We now read from a filesystem to user provided buffer.

Read sizes are determined by read call.

You should now get file descriptors and do reading through Process::current()
2023-03-17 21:18:41 +02:00
Bananymous 1f2ceeb329 Kernel: VFS caches currently open inodes 2023-03-16 15:31:33 +02:00
Bananymous 1b7625581d Kernel: Add basic concept of Processes
We now create Shell as a process that has its own threads
2023-03-16 12:17:04 +02:00
Bananymous c012822d49 BAN: Rename StringView suffix from _sv to sv 2023-03-16 12:15:16 +02:00
Bananymous 8b8e3cbbf0 Kernel/Userspace: Start initial work on userspace and syscalls 2023-03-13 15:32:46 +02:00
Bananymous af854ec9e1 Kernel: Thread creation now takes void(*)() as entry and void* as data
This simplifies threading for the future and gets rid of (undefined?)
cast of member function pointer to address
2023-03-09 15:33:42 +02:00
Bananymous 8dbece9119 Kernel: kmalloc minimum align is forced to s_kmalloc_min_align 2023-03-09 14:37:25 +02:00
Bananymous 8940ff8002 Kernel: You don't have to check whether VFS is initialized or not
VFS now returns Error when attempting to traverse inodes if it did
not find root partition
2023-03-09 02:31:24 +02:00