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