/* * Copyright (c) 2022, Liav A. * * SPDX-License-Identifier: BSD-2-Clause */ #include #include #include #include #include #include namespace Kernel { NonnullRefPtr GenericDisplayConnector::must_create_with_preset_resolution(PhysicalAddress framebuffer_address, size_t width, size_t height, size_t pitch) { auto device_or_error = DeviceManagement::try_create_device(framebuffer_address, width, height, pitch); VERIFY(!device_or_error.is_error()); auto connector = device_or_error.release_value(); MUST(connector->create_attached_framebuffer_console()); MUST(connector->initialize_edid_for_generic_monitor()); return connector; } GenericDisplayConnector::GenericDisplayConnector(PhysicalAddress framebuffer_address, size_t width, size_t height, size_t pitch) : DisplayConnector() , m_framebuffer_address(framebuffer_address) { m_current_mode_setting.horizontal_active = width; m_current_mode_setting.vertical_active = height; m_current_mode_setting.horizontal_stride = pitch; } ErrorOr GenericDisplayConnector::create_attached_framebuffer_console() { auto width = m_current_mode_setting.horizontal_active; auto height = m_current_mode_setting.vertical_active; auto pitch = m_current_mode_setting.horizontal_stride; auto rounded_size = TRY(Memory::page_round_up(pitch * height)); m_framebuffer_region = TRY(MM.allocate_kernel_region(m_framebuffer_address.page_base(), rounded_size, "Framebuffer"sv, Memory::Region::Access::ReadWrite)); [[maybe_unused]] auto result = m_framebuffer_region->set_write_combine(true); m_framebuffer_data = m_framebuffer_region->vaddr().offset(m_framebuffer_address.offset_in_page()).as_ptr(); m_framebuffer_console = Graphics::ContiguousFramebufferConsole::initialize(m_framebuffer_address, width, height, pitch); GraphicsManagement::the().set_console(*m_framebuffer_console); return {}; } ErrorOr GenericDisplayConnector::write_to_first_surface(u64 offset, UserOrKernelBuffer const& buffer, size_t length) { VERIFY(m_control_lock.is_locked()); if (offset + length > m_framebuffer_region->size()) return Error::from_errno(EOVERFLOW); TRY(buffer.read(m_framebuffer_data + offset, 0, length)); return length; } void GenericDisplayConnector::enable_console() { VERIFY(m_control_lock.is_locked()); VERIFY(m_framebuffer_console); m_framebuffer_console->enable(); } void GenericDisplayConnector::disable_console() { VERIFY(m_control_lock.is_locked()); VERIFY(m_framebuffer_console); m_framebuffer_console->disable(); } ErrorOr GenericDisplayConnector::flush_first_surface() { return Error::from_errno(ENOTSUP); } }