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https://github.com/SerenityOS/serenity
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ef243d42fc
We don't really need it, and the entire functionality can be organically intergrated into the VirtualConsole class, to switch between the Virtual consoles, and manage initialization of all consoles in the global array.
43 lines
1.6 KiB
C++
43 lines
1.6 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/Devices/GPU/Console/ContiguousFramebufferConsole.h>
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#include <Kernel/Devices/TTY/VirtualConsole.h>
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namespace Kernel::Graphics {
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NonnullLockRefPtr<ContiguousFramebufferConsole> ContiguousFramebufferConsole::initialize(PhysicalAddress framebuffer_address, size_t width, size_t height, size_t pitch)
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{
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return adopt_lock_ref(*new ContiguousFramebufferConsole(framebuffer_address, width, height, pitch));
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}
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ContiguousFramebufferConsole::ContiguousFramebufferConsole(PhysicalAddress framebuffer_address, size_t width, size_t height, size_t pitch)
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: GenericFramebufferConsole(width, height, pitch)
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, m_framebuffer_address(framebuffer_address)
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{
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set_resolution(width, height, pitch);
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}
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void ContiguousFramebufferConsole::set_resolution(size_t width, size_t height, size_t pitch)
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{
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m_width = width;
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m_height = height;
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m_pitch = pitch;
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size_t size = Memory::page_round_up(pitch * height).release_value_but_fixme_should_propagate_errors();
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dbgln("Framebuffer Console: taking {} bytes", size);
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auto region_or_error = MM.allocate_mmio_kernel_region(m_framebuffer_address, size, "Framebuffer Console"sv, Memory::Region::Access::ReadWrite, Memory::Region::Cacheable::Yes);
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VERIFY(!region_or_error.is_error());
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m_framebuffer_region = region_or_error.release_value();
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// Just to start cleanly, we clean the entire framebuffer
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memset(m_framebuffer_region->vaddr().as_ptr(), 0, pitch * height);
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VirtualConsole::resolution_was_changed();
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}
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}
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