mirror of
https://github.com/RGBCube/serenity
synced 2025-05-26 03:55:08 +00:00
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++
/*
|
|
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/Bus/PCI/API.h>
|
|
#include <Kernel/Graphics/Console/ContiguousFramebufferConsole.h>
|
|
#include <Kernel/Graphics/Definitions.h>
|
|
#include <Kernel/Graphics/GraphicsManagement.h>
|
|
#include <Kernel/Graphics/Intel/NativeGraphicsAdapter.h>
|
|
#include <Kernel/PhysicalAddress.h>
|
|
|
|
namespace Kernel {
|
|
|
|
static constexpr u16 supported_models[] {
|
|
0x29c2, // Intel G35 Adapter
|
|
};
|
|
|
|
static bool is_supported_model(u16 device_id)
|
|
{
|
|
for (auto& id : supported_models) {
|
|
if (id == device_id)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
ErrorOr<bool> IntelNativeGraphicsAdapter::probe(PCI::DeviceIdentifier const& pci_device_identifier)
|
|
{
|
|
return is_supported_model(pci_device_identifier.hardware_id().device_id);
|
|
}
|
|
|
|
ErrorOr<NonnullLockRefPtr<GenericGraphicsAdapter>> IntelNativeGraphicsAdapter::create(PCI::DeviceIdentifier const& pci_device_identifier)
|
|
{
|
|
auto adapter = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) IntelNativeGraphicsAdapter(pci_device_identifier.address())));
|
|
TRY(adapter->initialize_adapter());
|
|
return adapter;
|
|
}
|
|
|
|
ErrorOr<void> IntelNativeGraphicsAdapter::initialize_adapter()
|
|
{
|
|
auto address = pci_address();
|
|
dbgln_if(INTEL_GRAPHICS_DEBUG, "Intel Native Graphics Adapter @ {}", address);
|
|
auto bar0_space_size = PCI::get_BAR_space_size(address, PCI::HeaderType0BaseRegister::BAR0);
|
|
VERIFY(bar0_space_size == 0x80000);
|
|
auto bar2_space_size = PCI::get_BAR_space_size(address, PCI::HeaderType0BaseRegister::BAR2);
|
|
dmesgln_pci(*this, "MMIO @ {}, space size is {:x} bytes", PhysicalAddress(PCI::get_BAR0(address)), bar0_space_size);
|
|
dmesgln_pci(*this, "framebuffer @ {}", PhysicalAddress(PCI::get_BAR2(address)));
|
|
PCI::enable_bus_mastering(address);
|
|
|
|
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));
|
|
return {};
|
|
}
|
|
|
|
IntelNativeGraphicsAdapter::IntelNativeGraphicsAdapter(PCI::Address address)
|
|
: GenericGraphicsAdapter()
|
|
, PCI::Device(address)
|
|
{
|
|
}
|
|
|
|
}
|