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/*
* 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)));
TRY(adapter->initialize_adapter());
return adapter;
}
ErrorOr<void> IntelNativeGraphicsAdapter::initialize_adapter()
{
dbgln_if(INTEL_GRAPHICS_DEBUG, "Intel Native Graphics Adapter @ {}", device_identifier().address());
auto bar0_space_size = PCI::get_BAR_space_size(device_identifier(), PCI::HeaderType0BaseRegister::BAR0);
auto bar2_space_size = PCI::get_BAR_space_size(device_identifier(), PCI::HeaderType0BaseRegister::BAR2);
dmesgln_pci(*this, "MMIO @ {}, space size is {:x} bytes", PhysicalAddress(PCI::get_BAR0(device_identifier())), bar0_space_size);
dmesgln_pci(*this, "framebuffer @ {}", PhysicalAddress(PCI::get_BAR2(device_identifier())));
using MMIORegion = IntelDisplayConnectorGroup::MMIORegion;
MMIORegion first_region { MMIORegion::BARAssigned::BAR0, PhysicalAddress(PCI::get_BAR0(device_identifier()) & 0xfffffff0), bar0_space_size };
MMIORegion second_region { MMIORegion::BARAssigned::BAR2, PhysicalAddress(PCI::get_BAR2(device_identifier()) & 0xfffffff0), bar2_space_size };
PCI::enable_bus_mastering(device_identifier());
PCI::enable_io_space(device_identifier());
PCI::enable_memory_space(device_identifier());
using Generation = IntelDisplayConnectorGroup::Generation;
switch (device_identifier().hardware_id().device_id) {
case 0x29c2:
m_connector_group = TRY(IntelDisplayConnectorGroup::try_create({}, Generation::Gen4, first_region, second_region));
return {};
default:
return Error::from_errno(ENODEV);
}
}
IntelNativeGraphicsAdapter::IntelNativeGraphicsAdapter(PCI::DeviceIdentifier const& pci_device_identifier)
: GenericGraphicsAdapter()
, PCI::Device(const_cast<PCI::DeviceIdentifier&>(pci_device_identifier))
{
}
}
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