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42 Commits

Author SHA1 Message Date
Bananymous 8a663cb94f Kernel: Implement basic AC97 driver 2025-07-15 14:17:49 +03:00
Bananymous 674e194a91 Kernel: Don't fail PCI interrupt allocation with PCIe and no PCI 2025-07-15 14:17:49 +03:00
Bananymous 857bac4b78 Kernel: Disable unused interrupt methods in PCI devices 2025-06-01 13:48:03 +03:00
Bananymous f778bca3f2 Kernel: Remove accidentally commited debug code :) 2025-05-28 03:10:01 +03:00
Bananymous a945d19750 Kernel: Partially fix PCI PIN interrupt routing 
Don't fail early if the first device is not the one we are looking for
 2025-05-28 03:10:01 +03:00
Bananymous 96767f5ca8 Kernel: Implement PCI interrupt routing 
This does not really work but I have no idea what I'm doing wrong
 2025-04-01 23:09:30 +03:00
Bananymous ce09f35275 Kernel: Fix PCI 64 bit MSI msg_data offset 2024-11-22 22:17:25 +02:00
Bananymous 2d11ce9669 Kernel: Fix interrupt system 
I had not understood how MSIs work and I was unnecessarily routing them
through IOAPIC. This is not necessary and should not be done :D

Also MSIs were reserving interrupts that IOAPIC was capable of
generating. Now IOAPIC and MSIs use different set of interrupts so
IOAPIC can use more interrupts if needed.
 2024-09-27 15:31:31 +03:00
Bananymous 23d6205659 Kernel: Move DEBUG_* macros to centralized Debug.h 
This makes toggling debug info much easier
 2024-09-20 11:00:07 +03:00
Bananymous c77ad5fb34 Kernel: Implement copy-on-write memory for file backed `mmap`s 2024-09-11 19:33:50 +03:00
Bananymous 368f5e9799 Kernel: Add command lineoption `nousb` that will disable usb controller 2024-08-16 22:09:24 +03:00
Bananymous 9bc02c81f8 Kernel: Map DMA and PCI MMIO as uncached 2024-07-30 11:10:08 +03:00
Bananymous cda0276d39 Kernel: Force PCI irq line usage when not using APIC 
afaik PIC does not support MSI
 2024-07-23 09:08:00 +03:00
Bananymous ffe73165f9 Kernel: Fix PCI typo serail -> serial 2024-07-21 17:36:29 +03:00
Bananymous 0578d41500 Kernel: Implement WriteCombining memory 
This makes framebuffer much faster on real hardware
 2024-07-15 22:09:09 +03:00
Bananymous 14dce1abac Kernel: Start work on USB stack 
Current code can enumerate all xHCI devices and detect their type based
on the class code on device or interface descriptors.
 2024-07-10 12:06:00 +03:00
Bananymous f18c33563d Kernel: Fix PCI MSI-X allocation 2024-06-30 20:36:43 +03:00
Bananymous 2a4d986da5 Kernel: Add preliminary support for PCIe 
Only segment 0 is supported, but devices can now be accessed through
mmio.

Adding more segments would require adding argument to every PCI API so
it is left for later.
 2024-05-25 20:50:07 +03:00
Bananymous 4b332b5d42 Kernel: Cleanup PCI code 2024-02-02 03:16:37 +02:00
Bananymous 99eed9c37a Kernel: Start work on network stack 2024-02-01 23:38:06 +02:00
Bananymous f4e86028d0 Kernel: Write simple working E1000 and E1000E drivers 2024-02-01 22:08:59 +02:00
Bananymous dfe5a2d665 All: Cleanup all files 
Add newline to end of files and remove whitespace from end of lines
 2024-01-24 15:53:38 +02:00
Bananymous 3441f63298 Kernel: Don't panic kernel if no interrupt could be reserved 2024-01-24 14:34:59 +02:00
Bananymous 2cee2a85e6 Kernel: DevFS now stores all devices 
This allows removing hack in PCI that was required to keep NVMe
controller alive.
 2024-01-24 14:33:50 +02:00
Bananymous 54a92293da Kernel: Implement NVMe driver 
I'm  actually able to boot this os fine on own laptop now!
 2024-01-17 08:26:58 +01:00
Bananymous c6130f33d7 Kernel: Implement MSI, MSI-X and interrupt reservation 2024-01-13 18:21:21 +02:00
Bananymous 0fdf8b6f68 Kernel: Fix PCI bugs 
IO BarRegion used vaddr instead of the correct paddr. Add API for
memory region iobase query.
 2023-10-16 16:50:49 +03:00
Bananymous 1312a9dad2 Kernel: PCI checks if ethernet device is E1000 before initialization 
I used to treat all ethernet deivices as E1000 but now it is actually
verified before initialization
 2023-10-16 01:44:54 +03:00
Bananymous 73b9c28457 Kernel: PCIDevice stores its vendor id and device id 2023-10-16 01:44:54 +03:00
Bananymous f7e38ccfe4 Kernel: Don't crash if header type != 0 in bar region creation 
Also remove spammy debug printing
 2023-10-13 16:32:32 +03:00
Bananymous 89c975350d Kernel: PCI can now get interrupts for devices 2023-10-11 22:18:58 +03:00
Bananymous f27974dd3c Kernel: PCI cleanup PCI::Device API 2023-10-11 21:52:08 +03:00
Bananymous 7ba72b1507 Kernel: Fix PCI BarRegion offsets 
Calculations accidentally assumed bar registers are 8 byte instead
of 4.
 2023-10-08 02:50:23 +03:00
Bananymous f21d4e794c Kernel: Rework whole ATA driver structure 
Make ATA driver more compatible when we are adding SATA support
 2023-10-08 02:50:23 +03:00
Bananymous 58506c5bd1 Kernel: Add config read/write api to PCI 2023-09-22 17:20:35 +03:00
Bananymous 11717f90c1 Kernel: PCI devices can now create region for BAR 
This creates either MEM or IO region for read/write access to PCI
device.
 2023-09-22 17:20:35 +03:00
Bananymous a740bf8df4 1000th COMMIT: Kernel: Add basic E1000 driver 
This driver is only capable to read mac address and enable and read
link status
 2023-09-22 17:20:28 +03:00
Bananymous 9bcfb34524 Kernel: Rewrite whole device structure 
We now have DevFileSystem which is derived from RamFileSystem. All
devices are RamInodes. We don't have separate DeviceManager anymore.
To iterate over devices, you can loop througn every inode in devfs.
 2023-07-10 23:17:14 +03:00
Bananymous 80c8d52dc5 Kernel: add more functionality to PCI 2023-07-09 23:04:11 +03:00
Bananymous 33393335c8 Kernel: PCI devices now report their prog_if 2023-04-19 16:43:05 +03:00
Bananymous a9acf1f6dc Kernel: PCIDevice is now class with getters and constructor 2023-03-08 02:41:44 +02:00
Bananymous 04bb08d27f Kernel: Add basic PCI enumeration 2023-02-26 02:56:53 +02:00