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https://github.com/RGBCube/serenity
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b55199c227
The TTY subsystem is represented with unix devices, so it should be under the Devices directory like the Audio, Storage, GPU and HID subsystems.
103 lines
3.1 KiB
C++
103 lines
3.1 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/VirtIO/Console.h>
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#include <Kernel/Devices/TTY/ConsoleManagement.h>
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#include <Kernel/Tasks/WorkQueue.h>
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namespace Kernel::Graphics::VirtIOGPU {
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constexpr static AK::Duration refresh_interval = AK::Duration::from_milliseconds(16);
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NonnullLockRefPtr<Console> Console::initialize(VirtIODisplayConnector& parent_display_connector)
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{
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auto current_resolution = parent_display_connector.current_mode_setting();
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return adopt_lock_ref(*new Console(parent_display_connector, current_resolution));
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}
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Console::Console(VirtIODisplayConnector const& parent_display_connector, DisplayConnector::ModeSetting current_resolution)
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: GenericFramebufferConsole(current_resolution.horizontal_active, current_resolution.vertical_active, current_resolution.horizontal_stride)
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, m_parent_display_connector(parent_display_connector)
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{
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// NOTE: Clear the framebuffer, in case it's left with some garbage.
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memset(framebuffer_data(), 0, current_resolution.horizontal_stride * current_resolution.vertical_active);
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enqueue_refresh_timer();
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}
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void Console::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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// Just to start cleanly, we clean the entire framebuffer
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memset(framebuffer_data(), 0, pitch * height);
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ConsoleManagement::the().resolution_was_changed();
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}
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void Console::set_cursor(size_t x, size_t y)
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{
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GenericFramebufferConsole::hide_cursor();
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m_x = x;
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m_y = y;
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GenericFramebufferConsole::show_cursor();
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m_dirty = true;
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}
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void Console::hide_cursor()
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{
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GenericFramebufferConsole::hide_cursor();
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m_dirty = true;
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}
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void Console::show_cursor()
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{
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GenericFramebufferConsole::show_cursor();
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m_dirty = true;
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}
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void Console::flush(size_t, size_t, size_t, size_t)
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{
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m_dirty = true;
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}
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void Console::enqueue_refresh_timer()
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{
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auto refresh_timer = adopt_nonnull_ref_or_enomem(new (nothrow) Timer()).release_value_but_fixme_should_propagate_errors();
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refresh_timer->setup(CLOCK_MONOTONIC, refresh_interval, [this]() {
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if (m_enabled.load() && m_dirty) {
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MUST(g_io_work->try_queue([this]() {
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{
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MutexLocker locker(m_parent_display_connector->m_flushing_lock);
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MUST(m_parent_display_connector->flush_first_surface());
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}
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m_dirty = false;
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}));
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}
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enqueue_refresh_timer();
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});
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TimerQueue::the().add_timer(move(refresh_timer));
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}
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void Console::enable()
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{
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// FIXME: Do we need some locking here to ensure the resolution doesn't change
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// while we enable the console?
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auto current_resolution = m_parent_display_connector->current_mode_setting();
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m_width = current_resolution.horizontal_active;
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m_height = current_resolution.vertical_active;
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m_pitch = current_resolution.horizontal_stride;
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GenericFramebufferConsole::enable();
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m_dirty = true;
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}
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u8* Console::framebuffer_data()
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{
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return m_parent_display_connector->framebuffer_data();
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}
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}
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