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55 lines
1.7 KiB
C++
55 lines
1.7 KiB
C++
/*
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* Copyright (c) 2020-2021, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/HashMap.h>
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#include <AK/NonnullOwnPtrVector.h>
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#include <AK/OwnPtr.h>
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#include <AK/Types.h>
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#include <Kernel/ACPI/Definitions.h>
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#include <Kernel/Bus/PCI/Access.h>
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#include <Kernel/Bus/PCI/MMIOAccess.h>
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#include <Kernel/Memory/AnonymousVMObject.h>
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#include <Kernel/Memory/PhysicalRegion.h>
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#include <Kernel/Memory/Region.h>
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#include <Kernel/Memory/VMObject.h>
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namespace Kernel {
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namespace PCI {
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class DeviceConfigurationSpaceMapping {
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public:
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DeviceConfigurationSpaceMapping(Address, const MMIOAccess::MMIOSegment&);
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VirtualAddress vaddr() const { return m_mapped_region->vaddr(); };
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PhysicalAddress paddr() const { return m_mapped_region->physical_page(0)->paddr(); }
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const Address& address() const { return m_device_address; };
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private:
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Address m_device_address;
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NonnullOwnPtr<Memory::Region> m_mapped_region;
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};
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class WindowedMMIOAccess final : public MMIOAccess {
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public:
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static void initialize(PhysicalAddress mcfg);
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private:
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explicit WindowedMMIOAccess(PhysicalAddress mcfg);
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virtual void write8_field(Address address, u32, u8) override;
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virtual void write16_field(Address address, u32, u16) override;
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virtual void write32_field(Address address, u32, u32) override;
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virtual u8 read8_field(Address address, u32) override;
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virtual u16 read16_field(Address address, u32) override;
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virtual u32 read32_field(Address address, u32) override;
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Optional<VirtualAddress> get_device_configuration_space(Address address);
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NonnullOwnPtrVector<DeviceConfigurationSpaceMapping> m_mapped_device_regions;
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};
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}
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}
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