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Kernel: Add more PCI configuration reading functions

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This commit is contained in:
Conrad Pankoff 2019-08-14 01:22:02 +10:00 • committed by Andreas Kling
parent 06743932b8
commit dce003c7eb
2 changed files with 32 additions and 20 deletions
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7
Kernel/PCI.cpp
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@ -19,6 +19,8 @@
#define PCI_BAR3 0x1C // u32
#define PCI_BAR4 0x20 // u32
#define PCI_BAR5 0x24 // u32
#define PCI_SUBSYSTEM_ID 0x2C // u16
#define PCI_SUBSYSTEM_VENDOR_ID 0x2E // u16
#define PCI_INTERRUPT_LINE 0x3C // byte
#define PCI_SECONDARY_BUS 0x19 // byte
#define PCI_HEADER_TYPE_DEVICE 0
@ -102,6 +104,11 @@ u32 get_BAR2(Address address) { return read_field<u32>(address, PCI_BAR2); }
u32 get_BAR3(Address address) { return read_field<u32>(address, PCI_BAR3); }
u32 get_BAR4(Address address) { return read_field<u32>(address, PCI_BAR4); }
u32 get_BAR5(Address address) { return read_field<u32>(address, PCI_BAR5); }
u8 get_revision_id(Address address) { return read_field<u8>(address, PCI_REVISION_ID); }
u8 get_subclass(Address address) { return read_field<u8>(address, PCI_SUBCLASS); }
u8 get_class(Address address) { return read_field<u8>(address, PCI_CLASS); }
u16 get_subsystem_id(Address address) { return read_field<u16>(address, PCI_SUBSYSTEM_ID); }
u16 get_subsystem_vendor_id(Address address) { return read_field<u16>(address, PCI_SUBSYSTEM_VENDOR_ID); }
void enable_bus_mastering(Address address)
{

5
Kernel/PCI.h
View file

@ -52,6 +52,11 @@ u32 get_BAR2(Address);
u32 get_BAR3(Address);
u32 get_BAR4(Address);
u32 get_BAR5(Address);
u8 get_revision_id(Address);
u8 get_subclass(Address);
u8 get_class(Address);
u16 get_subsystem_id(Address);
u16 get_subsystem_vendor_id(Address);
void enable_bus_mastering(Address);
}