mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 07:12:43 +00:00
42 lines
1.5 KiB
C++
42 lines
1.5 KiB
C++
/*
|
|
* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Bitmap.h>
|
|
#include <AK/Vector.h>
|
|
#include <Kernel/Bus/PCI/Controller/HostBridge.h>
|
|
#include <Kernel/Locking/Spinlock.h>
|
|
|
|
namespace Kernel::PCI {
|
|
|
|
class MemoryBackedHostBridge : public HostBridge {
|
|
public:
|
|
static NonnullOwnPtr<MemoryBackedHostBridge> must_create(Domain const&, PhysicalAddress);
|
|
|
|
virtual void write8_field(BusNumber, DeviceNumber, FunctionNumber, u32 field, u8 value) override;
|
|
virtual void write16_field(BusNumber, DeviceNumber, FunctionNumber, u32 field, u16 value) override;
|
|
virtual void write32_field(BusNumber, DeviceNumber, FunctionNumber, u32 field, u32 value) override;
|
|
|
|
virtual u8 read8_field(BusNumber, DeviceNumber, FunctionNumber, u32 field) override;
|
|
virtual u16 read16_field(BusNumber, DeviceNumber, FunctionNumber, u32 field) override;
|
|
virtual u32 read32_field(BusNumber, DeviceNumber, FunctionNumber, u32 field) override;
|
|
|
|
protected:
|
|
MemoryBackedHostBridge(PCI::Domain const&, PhysicalAddress);
|
|
|
|
// Memory-mapped access operations
|
|
void map_bus_region(BusNumber);
|
|
VirtualAddress get_device_configuration_memory_mapped_space(BusNumber, DeviceNumber, FunctionNumber);
|
|
PhysicalAddress determine_memory_mapped_bus_base_address(BusNumber) const;
|
|
|
|
// Data-members for accessing Memory mapped PCI devices' configuration spaces
|
|
BusNumber m_mapped_bus { 0 };
|
|
OwnPtr<Memory::Region> m_mapped_bus_region;
|
|
PhysicalAddress m_start_address;
|
|
};
|
|
|
|
}
|