mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 10:57:35 +00:00
Kernel: Move x86 Bochs VBE code to the Arch/x86 directory
To do this, we make the QEMUDisplayConnector class more standalone so it does not need to inherit from the BochsDisplayConnector class.
This commit is contained in:
parent
c50a81e93e
commit
8d6da9863f
7 changed files with 86 additions and 13 deletions
151
Kernel/Arch/x86/Hypervisor/BochsDisplayConnector.cpp
Normal file
151
Kernel/Arch/x86/Hypervisor/BochsDisplayConnector.cpp
Normal file
|
@ -0,0 +1,151 @@
|
|||
/*
|
||||
* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#include <AK/Platform.h>
|
||||
#include <Kernel/Arch/x86/Hypervisor/BochsDisplayConnector.h>
|
||||
#include <Kernel/Arch/x86/IO.h>
|
||||
#include <Kernel/Debug.h>
|
||||
#include <Kernel/Devices/DeviceManagement.h>
|
||||
#include <Kernel/Graphics/Bochs/Definitions.h>
|
||||
#include <Kernel/Graphics/Console/ContiguousFramebufferConsole.h>
|
||||
#include <Kernel/Graphics/GraphicsManagement.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
NonnullLockRefPtr<BochsDisplayConnector> BochsDisplayConnector::must_create(PhysicalAddress framebuffer_address, size_t framebuffer_resource_size, bool virtual_box_hardware)
|
||||
{
|
||||
auto device_or_error = DeviceManagement::try_create_device<BochsDisplayConnector>(framebuffer_address, framebuffer_resource_size);
|
||||
VERIFY(!device_or_error.is_error());
|
||||
auto connector = device_or_error.release_value();
|
||||
MUST(connector->create_attached_framebuffer_console());
|
||||
if (virtual_box_hardware)
|
||||
MUST(connector->initialize_edid_for_generic_monitor(Array<u8, 3> { 'V', 'B', 'X' }));
|
||||
else
|
||||
MUST(connector->initialize_edid_for_generic_monitor({}));
|
||||
return connector;
|
||||
}
|
||||
|
||||
BochsDisplayConnector::BochsDisplayConnector(PhysicalAddress framebuffer_address, size_t framebuffer_resource_size)
|
||||
: DisplayConnector(framebuffer_address, framebuffer_resource_size, false)
|
||||
{
|
||||
}
|
||||
|
||||
ErrorOr<void> BochsDisplayConnector::create_attached_framebuffer_console()
|
||||
{
|
||||
// We assume safe resolution is 1024x768x32
|
||||
m_framebuffer_console = Graphics::ContiguousFramebufferConsole::initialize(m_framebuffer_address.value(), 1024, 768, 1024 * sizeof(u32));
|
||||
GraphicsManagement::the().set_console(*m_framebuffer_console);
|
||||
return {};
|
||||
}
|
||||
|
||||
static void set_register_with_io(u16 index, u16 data)
|
||||
{
|
||||
IO::out16(VBE_DISPI_IOPORT_INDEX, index);
|
||||
IO::out16(VBE_DISPI_IOPORT_DATA, data);
|
||||
}
|
||||
|
||||
static u16 get_register_with_io(u16 index)
|
||||
{
|
||||
IO::out16(VBE_DISPI_IOPORT_INDEX, index);
|
||||
return IO::in16(VBE_DISPI_IOPORT_DATA);
|
||||
}
|
||||
|
||||
BochsDisplayConnector::IndexID BochsDisplayConnector::index_id() const
|
||||
{
|
||||
return get_register_with_io(0);
|
||||
}
|
||||
|
||||
void BochsDisplayConnector::enable_console()
|
||||
{
|
||||
VERIFY(m_control_lock.is_locked());
|
||||
VERIFY(m_framebuffer_console);
|
||||
m_framebuffer_console->enable();
|
||||
}
|
||||
|
||||
void BochsDisplayConnector::disable_console()
|
||||
{
|
||||
VERIFY(m_control_lock.is_locked());
|
||||
VERIFY(m_framebuffer_console);
|
||||
m_framebuffer_console->disable();
|
||||
}
|
||||
|
||||
ErrorOr<void> BochsDisplayConnector::flush_first_surface()
|
||||
{
|
||||
return Error::from_errno(ENOTSUP);
|
||||
}
|
||||
|
||||
ErrorOr<void> BochsDisplayConnector::set_safe_mode_setting()
|
||||
{
|
||||
DisplayConnector::ModeSetting safe_mode_set {
|
||||
.horizontal_stride = 1024 * sizeof(u32),
|
||||
.pixel_clock_in_khz = 0, // Note: There's no pixel clock in paravirtualized hardware
|
||||
.horizontal_active = 1024,
|
||||
.horizontal_front_porch_pixels = 0, // Note: There's no horizontal_front_porch_pixels in paravirtualized hardware
|
||||
.horizontal_sync_time_pixels = 0, // Note: There's no horizontal_sync_time_pixels in paravirtualized hardware
|
||||
.horizontal_blank_pixels = 0, // Note: There's no horizontal_blank_pixels in paravirtualized hardware
|
||||
.vertical_active = 768,
|
||||
.vertical_front_porch_lines = 0, // Note: There's no vertical_front_porch_lines in paravirtualized hardware
|
||||
.vertical_sync_time_lines = 0, // Note: There's no vertical_sync_time_lines in paravirtualized hardware
|
||||
.vertical_blank_lines = 0, // Note: There's no vertical_blank_lines in paravirtualized hardware
|
||||
.horizontal_offset = 0,
|
||||
.vertical_offset = 0,
|
||||
};
|
||||
return set_mode_setting(safe_mode_set);
|
||||
}
|
||||
|
||||
ErrorOr<void> BochsDisplayConnector::set_mode_setting(ModeSetting const& mode_setting)
|
||||
{
|
||||
SpinlockLocker locker(m_modeset_lock);
|
||||
size_t width = mode_setting.horizontal_active;
|
||||
size_t height = mode_setting.vertical_active;
|
||||
|
||||
dbgln_if(BXVGA_DEBUG, "BochsDisplayConnector resolution registers set to - {}x{}", width, height);
|
||||
|
||||
set_register_with_io(to_underlying(BochsDISPIRegisters::ENABLE), 0);
|
||||
set_register_with_io(to_underlying(BochsDISPIRegisters::XRES), (u16)width);
|
||||
set_register_with_io(to_underlying(BochsDISPIRegisters::YRES), (u16)height);
|
||||
set_register_with_io(to_underlying(BochsDISPIRegisters::VIRT_WIDTH), (u16)width);
|
||||
set_register_with_io(to_underlying(BochsDISPIRegisters::VIRT_HEIGHT), (u16)height * 2);
|
||||
set_register_with_io(to_underlying(BochsDISPIRegisters::BPP), 32);
|
||||
set_register_with_io(to_underlying(BochsDISPIRegisters::ENABLE), to_underlying(BochsFramebufferSettings::Enabled) | to_underlying(BochsFramebufferSettings::LinearFramebuffer));
|
||||
set_register_with_io(to_underlying(BochsDISPIRegisters::BANK), 0);
|
||||
if ((u16)width != get_register_with_io(to_underlying(BochsDISPIRegisters::XRES)) || (u16)height != get_register_with_io(to_underlying(BochsDISPIRegisters::YRES))) {
|
||||
return Error::from_errno(ENOTIMPL);
|
||||
}
|
||||
auto current_horizontal_active = get_register_with_io(to_underlying(BochsDISPIRegisters::XRES));
|
||||
auto current_vertical_active = get_register_with_io(to_underlying(BochsDISPIRegisters::YRES));
|
||||
DisplayConnector::ModeSetting mode_set {
|
||||
.horizontal_stride = current_horizontal_active * sizeof(u32),
|
||||
.pixel_clock_in_khz = 0, // Note: There's no pixel clock in paravirtualized hardware
|
||||
.horizontal_active = current_horizontal_active,
|
||||
.horizontal_front_porch_pixels = 0, // Note: There's no horizontal_front_porch_pixels in paravirtualized hardware
|
||||
.horizontal_sync_time_pixels = 0, // Note: There's no horizontal_sync_time_pixels in paravirtualized hardware
|
||||
.horizontal_blank_pixels = 0, // Note: There's no horizontal_blank_pixels in paravirtualized hardware
|
||||
.vertical_active = current_vertical_active,
|
||||
.vertical_front_porch_lines = 0, // Note: There's no vertical_front_porch_lines in paravirtualized hardware
|
||||
.vertical_sync_time_lines = 0, // Note: There's no vertical_sync_time_lines in paravirtualized hardware
|
||||
.vertical_blank_lines = 0, // Note: There's no vertical_blank_lines in paravirtualized hardware
|
||||
.horizontal_offset = 0,
|
||||
.vertical_offset = 0,
|
||||
};
|
||||
m_current_mode_setting = mode_set;
|
||||
return {};
|
||||
}
|
||||
|
||||
ErrorOr<void> BochsDisplayConnector::set_y_offset(size_t)
|
||||
{
|
||||
// Note: Although when using this device on QEMU we can actually set the horizontal and vertical offsets
|
||||
// with IO ports, this class is meant to be used for plain old Bochs graphics which might not support
|
||||
// this feature at all.
|
||||
return Error::from_errno(ENOTIMPL);
|
||||
}
|
||||
|
||||
ErrorOr<void> BochsDisplayConnector::unblank()
|
||||
{
|
||||
return Error::from_errno(ENOTIMPL);
|
||||
}
|
||||
|
||||
}
|
55
Kernel/Arch/x86/Hypervisor/BochsDisplayConnector.h
Normal file
55
Kernel/Arch/x86/Hypervisor/BochsDisplayConnector.h
Normal file
|
@ -0,0 +1,55 @@
|
|||
/*
|
||||
* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <AK/Try.h>
|
||||
#include <Kernel/Graphics/Bochs/Definitions.h>
|
||||
#include <Kernel/Graphics/Console/GenericFramebufferConsole.h>
|
||||
#include <Kernel/Graphics/DisplayConnector.h>
|
||||
#include <Kernel/Library/LockRefPtr.h>
|
||||
#include <Kernel/Locking/Spinlock.h>
|
||||
#include <Kernel/Memory/TypedMapping.h>
|
||||
|
||||
namespace Kernel {
|
||||
|
||||
class BochsDisplayConnector
|
||||
: public DisplayConnector {
|
||||
friend class BochsGraphicsAdapter;
|
||||
friend class DeviceManagement;
|
||||
|
||||
public:
|
||||
AK_TYPEDEF_DISTINCT_ORDERED_ID(u16, IndexID);
|
||||
|
||||
static NonnullLockRefPtr<BochsDisplayConnector> must_create(PhysicalAddress framebuffer_address, size_t framebuffer_resource_size, bool virtual_box_hardware);
|
||||
|
||||
private:
|
||||
IndexID index_id() const;
|
||||
|
||||
ErrorOr<void> create_attached_framebuffer_console();
|
||||
|
||||
BochsDisplayConnector(PhysicalAddress framebuffer_address, size_t framebuffer_resource_size);
|
||||
|
||||
virtual bool mutable_mode_setting_capable() const override final { return true; }
|
||||
virtual bool double_framebuffering_capable() const override { return false; }
|
||||
virtual ErrorOr<void> set_mode_setting(ModeSetting const&) override;
|
||||
virtual ErrorOr<void> set_safe_mode_setting() override final;
|
||||
virtual ErrorOr<void> set_y_offset(size_t y) override;
|
||||
virtual ErrorOr<void> unblank() override;
|
||||
|
||||
virtual bool partial_flush_support() const override final { return false; }
|
||||
virtual bool flush_support() const override final { return false; }
|
||||
// Note: Paravirtualized hardware doesn't require a defined refresh rate for modesetting.
|
||||
virtual bool refresh_rate_support() const override final { return false; }
|
||||
|
||||
virtual ErrorOr<void> flush_first_surface() override final;
|
||||
|
||||
virtual void enable_console() override final;
|
||||
virtual void disable_console() override final;
|
||||
|
||||
LockRefPtr<Graphics::GenericFramebufferConsole> m_framebuffer_console;
|
||||
};
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue