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Improved driver loading/unloading

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This commit is contained in:
Alex
2022-12-18 14:31:02 +02:00
parent 02f592ede9
commit e4ec9d87b8
7 changed files with 70 additions and 53 deletions
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22
Core/Driver/DriverLoading/BindInput.cpp
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@ -16,7 +16,8 @@ namespace Driver
{
DriverCode Driver::DriverLoadBindInput(void *DrvExtHdr, uint64_t DriverAddress, uint64_t Size, bool IsElf)
{
Fex *fex = (Fex *)KernelAllocator.RequestPages(TO_PAGES(Size));
Memory::Tracker *Tracker = new Memory::Tracker;
Fex *fex = (Fex *)Tracker->RequestPages(TO_PAGES(Size));
memcpy(fex, (void *)DriverAddress, Size);
FexExtended *fexExtended = (FexExtended *)((uint64_t)fex + EXTENDED_SECTION_ADDRESS);
debug("Driver allocated at %#lx-%#lx", fex, (uint64_t)fex + Size);
@ -27,14 +28,16 @@ namespace Driver
result[8], result[9], result[10], result[11], result[12], result[13], result[14], result[15]);
kfree(result);
#endif
if (CallDriverEntryPoint(fex) != DriverCode::OK)
KernelAPI *KAPI = (KernelAPI *)Tracker->RequestPages(TO_PAGES(sizeof(KernelAPI)));
if (CallDriverEntryPoint(fex, KAPI) != DriverCode::OK)
{
KernelAllocator.FreePages(fex, TO_PAGES(Size));
delete Tracker;
return DriverCode::DRIVER_RETURNED_ERROR;
}
debug("Starting driver %s (offset: %#lx)", fexExtended->Driver.Name, fex);
KernelCallback *KCallback = (KernelCallback *)KernelAllocator.RequestPages(TO_PAGES(sizeof(KernelCallback)));
KernelCallback *KCallback = (KernelCallback *)Tracker->RequestPages(TO_PAGES(sizeof(KernelCallback)));
switch (fexExtended->Driver.Type)
{
@ -47,25 +50,23 @@ namespace Driver
int CallbackRet = ((int (*)(KernelCallback *))((uint64_t)fexExtended->Driver.Callback + (uint64_t)fex))(KCallback);
if (CallbackRet == DriverReturnCode::NOT_IMPLEMENTED)
{
KernelAllocator.FreePages(fex, TO_PAGES(Size));
KernelAllocator.FreePages(KCallback, TO_PAGES(sizeof(KernelCallback)));
delete Tracker;
error("Driver %s does not implement the configuration callback", fexExtended->Driver.Name);
break;
}
else if (CallbackRet != DriverReturnCode::OK)
{
KernelAllocator.FreePages(fex, TO_PAGES(Size));
KernelAllocator.FreePages(KCallback, TO_PAGES(sizeof(KernelCallback)));
delete Tracker;
error("Driver %s returned error %d", fexExtended->Driver.Name, CallbackRet);
break;
}
KernelAllocator.FreePages(fex, TO_PAGES(Size));
KernelAllocator.FreePages(KCallback, TO_PAGES(sizeof(KernelCallback)));
fixme("Input driver: %s", fexExtended->Driver.Name);
DriverFile *DrvFile = new DriverFile;
DrvFile->DriverUID = this->DriverUIDs - 1;
DrvFile->Address = (void *)fex;
DrvFile->MemTrk = Tracker;
DrvFile->InterruptHook[0] = nullptr;
Drivers.push_back(DrvFile);
break;
@ -73,6 +74,7 @@ namespace Driver
default:
{
warn("Unknown driver type: %d", fexExtended->Driver.Type);
delete Tracker;
break;
}
}