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Kernel: Add VirtIOGPU graphics device

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Sahan Fernando 2021-06-12 23:07:44 +10:00 • committed by Andreas Kling
parent b569b2df35
commit b9ad6058aa
21 changed files with 1050 additions and 13 deletions
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54
Kernel/Graphics/VirtIOGPU/VirtIOGraphicsAdapter.cpp Normal file
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/*
* Copyright (c) 2021, Sahan Fernando <sahan.h.fernando@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Graphics/Console/GenericFramebufferConsole.h>
#include <Kernel/Graphics/GraphicsManagement.h>
#include <Kernel/Graphics/VirtIOGPU/VirtIOGPU.h>
#include <Kernel/Graphics/VirtIOGPU/VirtIOGraphicsAdapter.h>
namespace Kernel::Graphics {
NonnullRefPtr<VirtIOGraphicsAdapter> VirtIOGraphicsAdapter::initialize(PCI::Address base_address)
{
return adopt_ref(*new VirtIOGraphicsAdapter(base_address));
}
VirtIOGraphicsAdapter::VirtIOGraphicsAdapter(PCI::Address base_address)
: GraphicsDevice(base_address)
{
m_gpu_device = adopt_ref(*new VirtIOGPU(base_address)).leak_ref();
m_framebuffer_console = Kernel::Graphics::VirtIOGPUConsole::initialize(m_gpu_device);
// FIXME: This is a very wrong way to do this...
GraphicsManagement::the().m_console = m_framebuffer_console;
}
void VirtIOGraphicsAdapter::initialize_framebuffer_devices()
{
dbgln_if(VIRTIO_DEBUG, "VirtIOGPU: Initializing framebuffer devices");
VERIFY(m_framebuffer_device.is_null());
m_framebuffer_device = adopt_ref(*new VirtIOFrameBufferDevice(m_gpu_device)).leak_ref();
}
void VirtIOGraphicsAdapter::enable_consoles()
{
dbgln_if(VIRTIO_DEBUG, "VirtIOGPU: Enabling consoles");
VERIFY(m_framebuffer_console);
if (m_framebuffer_device)
m_framebuffer_device->deactivate_writes();
m_gpu_device->clear_to_black();
m_framebuffer_console->enable();
}
void VirtIOGraphicsAdapter::disable_consoles()
{
dbgln_if(VIRTIO_DEBUG, "VirtIOGPU: Disabling consoles");
VERIFY(m_framebuffer_device);
VERIFY(m_framebuffer_console);
m_framebuffer_console->disable();
m_framebuffer_device->activate_writes();
}
}