summaryrefslogtreecommitdiff
path: root/Kernel/Bus/PCI
diff options
context:
space:
mode:
Diffstat (limited to 'Kernel/Bus/PCI')
-rw-r--r--Kernel/Bus/PCI/Initializer.cpp2
-rw-r--r--Kernel/Bus/PCI/SysFSPCI.cpp139
-rw-r--r--Kernel/Bus/PCI/SysFSPCI.h56
3 files changed, 1 insertions, 196 deletions
diff --git a/Kernel/Bus/PCI/Initializer.cpp b/Kernel/Bus/PCI/Initializer.cpp
index 159948484e..fd51bdd488 100644
--- a/Kernel/Bus/PCI/Initializer.cpp
+++ b/Kernel/Bus/PCI/Initializer.cpp
@@ -8,8 +8,8 @@
#include <Kernel/Bus/PCI/API.h>
#include <Kernel/Bus/PCI/Access.h>
#include <Kernel/Bus/PCI/Initializer.h>
-#include <Kernel/Bus/PCI/SysFSPCI.h>
#include <Kernel/CommandLine.h>
+#include <Kernel/FileSystem/SysFS/Subsystems/Bus/PCI/SysFSPCI.h>
#include <Kernel/Firmware/ACPI/Parser.h>
#include <Kernel/Panic.h>
#include <Kernel/Sections.h>
diff --git a/Kernel/Bus/PCI/SysFSPCI.cpp b/Kernel/Bus/PCI/SysFSPCI.cpp
deleted file mode 100644
index 069ae33804..0000000000
--- a/Kernel/Bus/PCI/SysFSPCI.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#include <Kernel/Bus/PCI/API.h>
-#include <Kernel/Bus/PCI/Access.h>
-#include <Kernel/Bus/PCI/SysFSPCI.h>
-#include <Kernel/Debug.h>
-#include <Kernel/Sections.h>
-
-namespace Kernel::PCI {
-
-UNMAP_AFTER_INIT NonnullRefPtr<PCIDeviceSysFSDirectory> PCIDeviceSysFSDirectory::create(SysFSDirectory const& parent_directory, Address address)
-{
- // FIXME: Handle allocation failure gracefully
- auto device_name = MUST(KString::formatted("{:04x}:{:02x}:{:02x}.{}", address.domain(), address.bus(), address.device(), address.function()));
- return adopt_ref(*new (nothrow) PCIDeviceSysFSDirectory(move(device_name), parent_directory, address));
-}
-
-UNMAP_AFTER_INIT PCIDeviceSysFSDirectory::PCIDeviceSysFSDirectory(NonnullOwnPtr<KString> device_directory_name, SysFSDirectory const& parent_directory, Address address)
- : SysFSDirectory(parent_directory)
- , m_address(address)
- , m_device_directory_name(move(device_directory_name))
-{
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::VENDOR_ID, 2));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::DEVICE_ID, 2));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::CLASS, 1));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::SUBCLASS, 1));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::REVISION_ID, 1));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::PROG_IF, 1));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::SUBSYSTEM_VENDOR_ID, 2));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::SUBSYSTEM_ID, 2));
-
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR0, 4));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR1, 4));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR2, 4));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR3, 4));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR4, 4));
- m_components.append(PCIDeviceAttributeSysFSComponent::create(*this, PCI::RegisterOffset::BAR5, 4));
-}
-
-UNMAP_AFTER_INIT void PCIBusSysFSDirectory::initialize()
-{
- auto pci_directory = adopt_ref(*new (nothrow) PCIBusSysFSDirectory());
- SysFSComponentRegistry::the().register_new_bus_directory(pci_directory);
-}
-
-UNMAP_AFTER_INIT PCIBusSysFSDirectory::PCIBusSysFSDirectory()
- : SysFSDirectory(SysFSComponentRegistry::the().buses_directory())
-{
- MUST(PCI::enumerate([&](DeviceIdentifier const& device_identifier) {
- auto pci_device = PCI::PCIDeviceSysFSDirectory::create(*this, device_identifier.address());
- m_components.append(pci_device);
- }));
-}
-
-StringView PCIDeviceAttributeSysFSComponent::name() const
-{
- switch (m_offset) {
- case PCI::RegisterOffset::VENDOR_ID:
- return "vendor"sv;
- case PCI::RegisterOffset::DEVICE_ID:
- return "device_id"sv;
- case PCI::RegisterOffset::CLASS:
- return "class"sv;
- case PCI::RegisterOffset::SUBCLASS:
- return "subclass"sv;
- case PCI::RegisterOffset::REVISION_ID:
- return "revision"sv;
- case PCI::RegisterOffset::PROG_IF:
- return "progif"sv;
- case PCI::RegisterOffset::SUBSYSTEM_VENDOR_ID:
- return "subsystem_vendor"sv;
- case PCI::RegisterOffset::SUBSYSTEM_ID:
- return "subsystem_id"sv;
- case PCI::RegisterOffset::BAR0:
- return "bar0"sv;
- case PCI::RegisterOffset::BAR1:
- return "bar1"sv;
- case PCI::RegisterOffset::BAR2:
- return "bar2"sv;
- case PCI::RegisterOffset::BAR3:
- return "bar3"sv;
- case PCI::RegisterOffset::BAR4:
- return "bar4"sv;
- case PCI::RegisterOffset::BAR5:
- return "bar5"sv;
- default:
- VERIFY_NOT_REACHED();
- }
-}
-
-NonnullRefPtr<PCIDeviceAttributeSysFSComponent> PCIDeviceAttributeSysFSComponent::create(PCIDeviceSysFSDirectory const& device, PCI::RegisterOffset offset, size_t field_bytes_width)
-{
- return adopt_ref(*new (nothrow) PCIDeviceAttributeSysFSComponent(device, offset, field_bytes_width));
-}
-
-PCIDeviceAttributeSysFSComponent::PCIDeviceAttributeSysFSComponent(PCIDeviceSysFSDirectory const& device, PCI::RegisterOffset offset, size_t field_bytes_width)
- : SysFSComponent()
- , m_device(device)
- , m_offset(offset)
- , m_field_bytes_width(field_bytes_width)
-{
-}
-
-ErrorOr<size_t> PCIDeviceAttributeSysFSComponent::read_bytes(off_t offset, size_t count, UserOrKernelBuffer& buffer, OpenFileDescription*) const
-{
- auto blob = TRY(try_to_generate_buffer());
-
- if ((size_t)offset >= blob->size())
- return 0;
-
- ssize_t nread = min(static_cast<off_t>(blob->size() - offset), static_cast<off_t>(count));
- TRY(buffer.write(blob->data() + offset, nread));
- return nread;
-}
-
-ErrorOr<NonnullOwnPtr<KBuffer>> PCIDeviceAttributeSysFSComponent::try_to_generate_buffer() const
-{
- OwnPtr<KString> value;
- switch (m_field_bytes_width) {
- case 1:
- value = TRY(KString::formatted("{:#x}", PCI::read8(m_device->address(), m_offset)));
- break;
- case 2:
- value = TRY(KString::formatted("{:#x}", PCI::read16(m_device->address(), m_offset)));
- break;
- case 4:
- value = TRY(KString::formatted("{:#x}", PCI::read32(m_device->address(), m_offset)));
- break;
- default:
- VERIFY_NOT_REACHED();
- }
-
- return KBuffer::try_create_with_bytes(value->view().bytes());
-}
-}
diff --git a/Kernel/Bus/PCI/SysFSPCI.h b/Kernel/Bus/PCI/SysFSPCI.h
deleted file mode 100644
index 80c09e46e5..0000000000
--- a/Kernel/Bus/PCI/SysFSPCI.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
- *
- * SPDX-License-Identifier: BSD-2-Clause
- */
-
-#pragma once
-
-#include <AK/Vector.h>
-#include <Kernel/Bus/PCI/Definitions.h>
-#include <Kernel/FileSystem/SysFS.h>
-
-namespace Kernel::PCI {
-
-class PCIBusSysFSDirectory final : public SysFSDirectory {
-public:
- static void initialize();
- virtual StringView name() const override { return "pci"sv; }
-
-private:
- PCIBusSysFSDirectory();
-};
-
-class PCIDeviceSysFSDirectory final : public SysFSDirectory {
-public:
- static NonnullRefPtr<PCIDeviceSysFSDirectory> create(SysFSDirectory const&, Address);
- Address const& address() const { return m_address; }
-
- virtual StringView name() const override { return m_device_directory_name->view(); }
-
-private:
- PCIDeviceSysFSDirectory(NonnullOwnPtr<KString> device_directory_name, SysFSDirectory const&, Address);
-
- Address m_address;
-
- NonnullOwnPtr<KString> m_device_directory_name;
-};
-
-class PCIDeviceAttributeSysFSComponent : public SysFSComponent {
-public:
- static NonnullRefPtr<PCIDeviceAttributeSysFSComponent> create(PCIDeviceSysFSDirectory const& device, PCI::RegisterOffset offset, size_t field_bytes_width);
-
- virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
- virtual ~PCIDeviceAttributeSysFSComponent() {};
-
- virtual StringView name() const override;
-
-protected:
- ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const;
- PCIDeviceAttributeSysFSComponent(PCIDeviceSysFSDirectory const& device, PCI::RegisterOffset offset, size_t field_bytes_width);
- NonnullRefPtr<PCIDeviceSysFSDirectory> m_device;
- PCI::RegisterOffset m_offset;
- size_t m_field_bytes_width;
-};
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 12:47:14 +0000