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Kernel/Graphics + SystemServer: Support text mode properly

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As we removed the support of VBE modesetting that was done by GRUB early
on boot, we need to determine if we can modeset the resolution with our
drivers, and if not, we should enable text mode and ensure that
SystemServer knows about it too.

Also, SystemServer should first check if there's a framebuffer device
node, which is an indication that text mode was not even if it was
requested. Then, if it doesn't find it, it should check what boot_mode
argument the user specified (in case it's self-test). This way if we
try to use bochs-display device (which is not VGA compatible) and
request a text mode, it will not honor the request and will continue
with graphical mode.

Also try to print critical messages with mininum memory allocations
possible.

In LibVT, We make the implementation flexible for kernel-specific
methods that are implemented in ConsoleImpl class.
This commit is contained in:
Liav A 2021-04-16 22:58:51 +03:00 • committed by Andreas Kling
parent dac129e10b
commit 20743e8aed
41 changed files with 1832 additions and 321 deletions
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42
Kernel/Graphics/VGACompatibleAdapter.cpp
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@ -4,7 +4,11 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <Kernel/Graphics/Console/FramebufferConsole.h>
#include <Kernel/Graphics/Console/TextModeConsole.h>
#include <Kernel/Graphics/GraphicsManagement.h>
#include <Kernel/Graphics/VGACompatibleAdapter.h>
#include <Kernel/IO.h>
namespace Kernel {
@ -13,19 +17,55 @@ UNMAP_AFTER_INIT NonnullRefPtr<VGACompatibleAdapter> VGACompatibleAdapter::initi
return adopt_ref(*new VGACompatibleAdapter(address, m_framebuffer_address, framebuffer_width, framebuffer_height, framebuffer_pitch));
}
UNMAP_AFTER_INIT NonnullRefPtr<VGACompatibleAdapter> VGACompatibleAdapter::initialize(PCI::Address address)
{
return adopt_ref(*new VGACompatibleAdapter(address));
}
UNMAP_AFTER_INIT void VGACompatibleAdapter::initialize_framebuffer_devices()
{
// We might not have any pre-set framebuffer, so if that's the case - don't try to initialize one.
if (m_framebuffer_address.is_null())
return;
VERIFY(m_framebuffer_width);
VERIFY(m_framebuffer_width != 0);
VERIFY(m_framebuffer_height != 0);
VERIFY(m_framebuffer_pitch != 0);
m_framebuffer_device = RawFramebufferDevice::create(*this, m_framebuffer_address, m_framebuffer_width, m_framebuffer_height, m_framebuffer_pitch);
m_framebuffer_device->initialize();
}
UNMAP_AFTER_INIT VGACompatibleAdapter::VGACompatibleAdapter(PCI::Address address)
: PCI::DeviceController(address)
{
m_framebuffer_console = Graphics::TextModeConsole::initialize(*this);
// FIXME: This is a very wrong way to do this...
GraphicsManagement::the().m_console = m_framebuffer_console;
}
UNMAP_AFTER_INIT VGACompatibleAdapter::VGACompatibleAdapter(PCI::Address address, PhysicalAddress framebuffer_address, size_t framebuffer_width, size_t framebuffer_height, size_t framebuffer_pitch)
: PCI::DeviceController(address)
, m_framebuffer_address(framebuffer_address)
, m_framebuffer_width(framebuffer_width)
, m_framebuffer_height(framebuffer_height)
, m_framebuffer_pitch(framebuffer_pitch)
{
m_framebuffer = RawFramebufferDevice::create(*this, framebuffer_address, framebuffer_width, framebuffer_height, framebuffer_pitch);
m_framebuffer_console = Graphics::FramebufferConsole::initialize(framebuffer_address, framebuffer_width, framebuffer_height, framebuffer_pitch);
}
void VGACompatibleAdapter::enable_consoles()
{
VERIFY(m_framebuffer_console);
if (m_framebuffer_device)
m_framebuffer_device->dectivate_writes();
m_framebuffer_console->enable();
}
void VGACompatibleAdapter::disable_consoles()
{
VERIFY(m_framebuffer_device);
VERIFY(m_framebuffer_console);
m_framebuffer_console->disable();
m_framebuffer_device->activate_writes();
}
}