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Kernel: Convert PCI Capability struct to class with convenience methods

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Based on pull #3236 by tomuta

Co-authored-by: Tom <tomut@yahoo.com>
This commit is contained in:
Idan Horowitz 2021-01-02 19:33:30 +02:00 • committed by Andreas Kling
parent dfb23babbb
commit 172d23deae
3 changed files with 61 additions and 7 deletions
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32
Kernel/PCI/Access.cpp
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@ -178,8 +178,8 @@ Vector<Capability> get_capabilities(Address address)
dbgln_if(PCI_DEBUG, "PCI: Reading in capability at {:#02x} for {}", capability_pointer, address);
u16 capability_header = PCI::read16(address, capability_pointer);
u8 capability_id = capability_header & 0xff;
capabilities.append({ address, capability_id, capability_pointer });
capability_pointer = capability_header >> 8;
capabilities.append({ capability_id, capability_pointer });
}
return capabilities;
}
@ -312,5 +312,35 @@ size_t get_BAR_space_size(Address address, u8 bar_number)
return space_size;
}
u8 Capability::read8(u32 field) const
{
return PCI::read8(m_address, m_ptr + field);
}
u16 Capability::read16(u32 field) const
{
return PCI::read16(m_address, m_ptr + field);
}
u32 Capability::read32(u32 field) const
{
return PCI::read32(m_address, m_ptr + field);
}
void Capability::write8(u32 field, u8 value)
{
PCI::write8(m_address, m_ptr + field, value);
}
void Capability::write16(u32 field, u16 value)
{
PCI::write16(m_address, m_ptr + field, value);
}
void Capability::write32(u32 field, u32 value)
{
PCI::write32(m_address, m_ptr + field, value);
}
}
}