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https://github.com/RGBCube/serenity
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72b144e9e9
Instead of using a clunky switch-case paradigm, we now have all drivers being declaring two methods for their adapter class - create and probe. These methods are linked in each PCIGraphicsDriverInitializer structure, in a new s_initializers static list of them. Then, when we probe for a PCI device, we use each probe method and if there's a match, then the corresponding create method is called. As a result of this change, it's much more easy to add more drivers and the initialization code is more readable.
62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
/*
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* Copyright (c) 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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#include <Kernel/Bus/PCI/API.h>
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#include <Kernel/Graphics/Console/ContiguousFramebufferConsole.h>
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#include <Kernel/Graphics/Definitions.h>
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#include <Kernel/Graphics/GraphicsManagement.h>
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#include <Kernel/Graphics/Intel/NativeGraphicsAdapter.h>
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#include <Kernel/PhysicalAddress.h>
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namespace Kernel {
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static constexpr u16 supported_models[] {
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0x29c2, // Intel G35 Adapter
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};
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static bool is_supported_model(u16 device_id)
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{
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for (auto& id : supported_models) {
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if (id == device_id)
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return true;
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}
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return false;
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}
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ErrorOr<bool> IntelNativeGraphicsAdapter::probe(PCI::DeviceIdentifier const& pci_device_identifier)
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{
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return is_supported_model(pci_device_identifier.hardware_id().device_id);
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}
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ErrorOr<NonnullLockRefPtr<GenericGraphicsAdapter>> IntelNativeGraphicsAdapter::create(PCI::DeviceIdentifier const& pci_device_identifier)
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{
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auto adapter = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) IntelNativeGraphicsAdapter(pci_device_identifier.address())));
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TRY(adapter->initialize_adapter());
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return adapter;
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}
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ErrorOr<void> IntelNativeGraphicsAdapter::initialize_adapter()
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{
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auto address = pci_address();
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dbgln_if(INTEL_GRAPHICS_DEBUG, "Intel Native Graphics Adapter @ {}", address);
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auto bar0_space_size = PCI::get_BAR_space_size(address, PCI::HeaderType0BaseRegister::BAR0);
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VERIFY(bar0_space_size == 0x80000);
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auto bar2_space_size = PCI::get_BAR_space_size(address, PCI::HeaderType0BaseRegister::BAR2);
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dmesgln_pci(*this, "MMIO @ {}, space size is {:x} bytes", PhysicalAddress(PCI::get_BAR0(address)), bar0_space_size);
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dmesgln_pci(*this, "framebuffer @ {}", PhysicalAddress(PCI::get_BAR2(address)));
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PCI::enable_bus_mastering(address);
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m_display_connector = TRY(IntelNativeDisplayConnector::try_create(PhysicalAddress(PCI::get_BAR2(address) & 0xfffffff0), bar2_space_size, PhysicalAddress(PCI::get_BAR0(address) & 0xfffffff0), bar0_space_size));
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return {};
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}
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IntelNativeGraphicsAdapter::IntelNativeGraphicsAdapter(PCI::Address address)
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: GenericGraphicsAdapter()
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, PCI::Device(address)
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{
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}
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}
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