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https://github.com/RGBCube/serenity
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053a832fac
We use a switch-case statements to ensure we try to find the best suitable driver for a specific graphics card. In case we don't find such, we use the default statement to initialize the graphics card as a generic VGA adapter, if the adapter is VGA compatible. If we couldn't initialize the driver, we don't touch this adapter anymore. Also, GraphicsDevice should not be tied to a PCI::Address member, as it can be theortically be used with other buses (e.g. ISA cards).
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/*
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* Copyright (c) 2021, Sahan Fernando <sahan.h.fernando@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/Graphics/Console/GenericFramebufferConsole.h>
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#include <Kernel/Graphics/GraphicsManagement.h>
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#include <Kernel/Graphics/VirtIOGPU/VirtIOGPU.h>
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#include <Kernel/Graphics/VirtIOGPU/VirtIOGraphicsAdapter.h>
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namespace Kernel::Graphics {
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NonnullRefPtr<VirtIOGraphicsAdapter> VirtIOGraphicsAdapter::initialize(PCI::Address base_address)
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{
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return adopt_ref(*new VirtIOGraphicsAdapter(base_address));
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}
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VirtIOGraphicsAdapter::VirtIOGraphicsAdapter(PCI::Address base_address)
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: PCI::DeviceController(base_address)
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{
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m_gpu_device = adopt_ref(*new VirtIOGPU(base_address)).leak_ref();
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}
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void VirtIOGraphicsAdapter::initialize_framebuffer_devices()
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{
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dbgln_if(VIRTIO_DEBUG, "VirtIOGPU: Initializing framebuffer devices");
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VERIFY(!m_created_framebuffer_devices);
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m_gpu_device->create_framebuffer_devices();
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m_created_framebuffer_devices = true;
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// FIXME: This is a very wrong way to do this...
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GraphicsManagement::the().m_console = m_gpu_device->default_console();
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}
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void VirtIOGraphicsAdapter::enable_consoles()
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{
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dbgln_if(VIRTIO_DEBUG, "VirtIOGPU: Enabling consoles");
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m_gpu_device->for_each_framebuffer([&](auto& framebuffer, auto& console) {
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framebuffer.deactivate_writes();
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framebuffer.clear_to_black();
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console.enable();
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return IterationDecision::Continue;
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});
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}
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void VirtIOGraphicsAdapter::disable_consoles()
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{
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dbgln_if(VIRTIO_DEBUG, "VirtIOGPU: Disabling consoles");
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m_gpu_device->for_each_framebuffer([&](auto& framebuffer, auto& console) {
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console.disable();
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framebuffer.activate_writes();
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return IterationDecision::Continue;
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});
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}
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}
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