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https://github.com/RGBCube/serenity
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9ee098b119
Like the HID, Audio and Storage subsystem, the Graphics subsystem (which
handles GPUs technically) exposes unix device files (typically in /dev).
To ensure consistency across the repository, move all related files to a
new directory under Kernel/Devices called "GPU".
Also remove the redundant "GPU" word from the VirtIO driver directory,
and the word "Graphics" from GraphicsManagement.{h,cpp} filenames.
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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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/Intel/Plane/DisplayPlane.h>
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#include <Kernel/Memory/PhysicalAddress.h>
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namespace Kernel {
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IntelDisplayPlane::IntelDisplayPlane(Memory::TypedMapping<PlaneRegisters volatile> plane_registers_mapping)
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: m_plane_registers(move(plane_registers_mapping))
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{
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}
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IntelDisplayPlane::ShadowRegisters IntelDisplayPlane::shadow_registers() const
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{
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SpinlockLocker locker(m_access_lock);
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return m_shadow_registers;
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}
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ErrorOr<void> IntelDisplayPlane::set_horizontal_active_pixels_count(Badge<IntelDisplayConnectorGroup>, size_t horizontal_active_pixels_count)
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{
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SpinlockLocker locker(m_access_lock);
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m_horizontal_active_pixels_count = horizontal_active_pixels_count;
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return {};
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}
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ErrorOr<void> IntelDisplayPlane::set_vertical_active_pixels_count(Badge<IntelDisplayConnectorGroup>, size_t vertical_active_pixels_count)
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{
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SpinlockLocker locker(m_access_lock);
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m_vertical_active_pixels_count = vertical_active_pixels_count;
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return {};
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}
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ErrorOr<void> IntelDisplayPlane::set_horizontal_stride(Badge<IntelDisplayConnectorGroup>, size_t horizontal_stride)
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{
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SpinlockLocker locker(m_access_lock);
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m_horizontal_stride = horizontal_stride;
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return {};
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}
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ErrorOr<void> IntelDisplayPlane::set_aperture_base(Badge<IntelDisplayConnectorGroup>, PhysicalAddress aperture_start)
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{
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SpinlockLocker locker(m_access_lock);
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m_aperture_start.set(aperture_start.get());
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return {};
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}
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ErrorOr<void> IntelDisplayPlane::set_pipe(Badge<IntelDisplayConnectorGroup>, PipeSelect pipe_select)
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{
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SpinlockLocker locker(m_access_lock);
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m_pipe_select = pipe_select;
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return {};
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}
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bool IntelDisplayPlane::is_enabled(Badge<IntelDisplayConnectorGroup>)
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{
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SpinlockLocker locker(m_access_lock);
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return m_shadow_registers.control & (1 << 31);
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}
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ErrorOr<void> IntelDisplayPlane::disable(Badge<IntelDisplayConnectorGroup>)
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{
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SpinlockLocker locker(m_access_lock);
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// Note: We use the shadow register so we don't have the already set
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// settings being lost.
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m_shadow_registers.control &= ~(1 << 31);
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m_plane_registers->control = m_shadow_registers.control;
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return {};
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}
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}
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