Sinipelto/banan-os
1
0
Fork 0
forked from Bananymous/banan-os
Code Pull Requests Activity

Kernel: Implement MSI, MSI-X and interrupt reservation

Browse Source
This commit is contained in:
Bananymous
2024-01-13 17:11:26 +02:00
parent 56a29dc176
commit c6130f33d7
14 changed files with 310 additions and 40 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
kernel/include/kernel/PCI.h
View File

@@ -79,7 +79,8 @@ namespace Kernel::PCI
uint16_t vendor_id() const { return m_vendor_id; }
uint16_t device_id() const { return m_device_id; }
BAN::ErrorOr<uint8_t> get_irq();
BAN::ErrorOr<void> reserve_irqs(uint8_t count);
uint8_t get_irq(uint8_t index);
BAN::ErrorOr<BAN::UniqPtr<BarRegion>> allocate_bar_region(uint8_t bar_num);
@@ -92,15 +93,15 @@ namespace Kernel::PCI
void enable_io_space();
void disable_io_space();
void enable_pin_interrupts();
void disable_pin_interrupts();
private:
void enumerate_capabilites();
void set_command_bits(uint16_t mask);
void unset_command_bits(uint16_t mask);
void enable_pin_interrupts();
void disable_pin_interrupts();
private:
const uint8_t m_bus;
const uint8_t m_dev;
@@ -114,6 +115,9 @@ namespace Kernel::PCI
uint16_t m_vendor_id;
uint16_t m_device_id;
uint32_t m_reserved_irqs { 0 };
uint8_t m_reserved_irq_count { 0 };
BAN::Optional<uint8_t> m_offset_msi;
BAN::Optional<uint8_t> m_offset_msi_x;
};