RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 19:27:44 +00:00
Code Issues Activity Actions

Kernel: Add various methods to handle interrupts in the PCI subsystem

Browse source 
For now, we only are able to enable or disable pin based interrupts.
Later, when implemented, we could utilize MSI & MSI-X interrupts.
This commit is contained in:
Liav A 2020-12-18 20:27:55 +02:00 • committed by Andreas Kling
parent 97b36febd5
commit cf0a12c68f
2 changed files with 54 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

43
Kernel/PCI/DeviceController.cpp
View file

@ -34,5 +34,48 @@ DeviceController::DeviceController(Address address)
{
}
bool DeviceController::is_msi_capable() const
{
for (auto capability : PCI::get_physical_id(pci_address()).capabilities()) {
if (capability.m_id == 0x5)
return true;
}
return false;
}
bool DeviceController::is_msix_capable() const
{
for (auto capability : PCI::get_physical_id(pci_address()).capabilities()) {
if (capability.m_id == 0x11)
return true;
}
return false;
}
void DeviceController::enable_pin_based_interrupts() const
{
PCI::enable_interrupt_line(pci_address());
}
void DeviceController::disable_pin_based_interrupts() const
{
PCI::disable_interrupt_line(pci_address());
}
void DeviceController::enable_message_signalled_interrupts()
{
TODO();
}
void DeviceController::disable_message_signalled_interrupts()
{
TODO();
}
void DeviceController::enable_extended_message_signalled_interrupts()
{
TODO();
}
void DeviceController::disable_extended_message_signalled_interrupts()
{
TODO();
}
}
}

11
Kernel/PCI/DeviceController.h
View file

@ -35,6 +35,17 @@ public:
Address pci_address() const { return m_pci_address; };
virtual ~DeviceController() { }
void enable_pin_based_interrupts() const;
void disable_pin_based_interrupts() const;
bool is_msi_capable() const;
bool is_msix_capable() const;
void enable_message_signalled_interrupts();
void disable_message_signalled_interrupts();
void enable_extended_message_signalled_interrupts();
void disable_extended_message_signalled_interrupts();
protected:
explicit DeviceController(Address pci_address);