jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#include <Kernel/Devices/DeviceManagement.h>
8#include <Kernel/Graphics/GraphicsManagement.h>
9#include <Kernel/Graphics/VMWare/Console.h>
10#include <Kernel/Graphics/VMWare/DisplayConnector.h>
11
12namespace Kernel {
13
14NonnullLockRefPtr<VMWareDisplayConnector> VMWareDisplayConnector::must_create(VMWareGraphicsAdapter const& parent_adapter, PhysicalAddress framebuffer_address, size_t framebuffer_resource_size)
15{
16 auto connector = MUST(DeviceManagement::try_create_device<VMWareDisplayConnector>(parent_adapter, framebuffer_address, framebuffer_resource_size));
17 MUST(connector->create_attached_framebuffer_console());
18 MUST(connector->initialize_edid_for_generic_monitor(Array<u8, 3> { 'V', 'M', 'W' }));
19 return connector;
20}
21
22ErrorOr<void> VMWareDisplayConnector::create_attached_framebuffer_console()
23{
24 m_framebuffer_console = VMWareFramebufferConsole::initialize(*this);
25 GraphicsManagement::the().set_console(*m_framebuffer_console);
26 return {};
27}
28
29VMWareDisplayConnector::VMWareDisplayConnector(VMWareGraphicsAdapter const& parent_adapter, PhysicalAddress framebuffer_address, size_t framebuffer_resource_size)
30 : DisplayConnector(framebuffer_address, framebuffer_resource_size, false)
31 , m_parent_adapter(parent_adapter)
32{
33}
34
35ErrorOr<void> VMWareDisplayConnector::set_safe_mode_setting()
36{
37 // We assume safe resolution is 1024x768x32
38 DisplayConnector::ModeSetting safe_mode_setting {
39 .horizontal_stride = 1024 * sizeof(u32),
40 .pixel_clock_in_khz = 0, // Note: There's no pixel clock in paravirtualized hardware
41 .horizontal_active = 1024,
42 .horizontal_front_porch_pixels = 0, // Note: There's no horizontal_front_porch_pixels in paravirtualized hardware
43 .horizontal_sync_time_pixels = 0, // Note: There's no horizontal_sync_time_pixels in paravirtualized hardware
44 .horizontal_blank_pixels = 0, // Note: There's no horizontal_blank_pixels in paravirtualized hardware
45 .vertical_active = 768,
46 .vertical_front_porch_lines = 0, // Note: There's no vertical_front_porch_lines in paravirtualized hardware
47 .vertical_sync_time_lines = 0, // Note: There's no vertical_sync_time_lines in paravirtualized hardware
48 .vertical_blank_lines = 0, // Note: There's no vertical_blank_lines in paravirtualized hardware
49 .horizontal_offset = 0,
50 .vertical_offset = 0,
51 };
52 return set_mode_setting(safe_mode_setting);
53}
54
55ErrorOr<void> VMWareDisplayConnector::unblank()
56{
57 return Error::from_errno(ENOTIMPL);
58}
59
60void VMWareDisplayConnector::enable_console()
61{
62 VERIFY(m_control_lock.is_locked());
63 VERIFY(m_framebuffer_console);
64 m_framebuffer_console->enable();
65}
66
67void VMWareDisplayConnector::disable_console()
68{
69 VERIFY(m_control_lock.is_locked());
70 VERIFY(m_framebuffer_console);
71 m_framebuffer_console->disable();
72}
73
74ErrorOr<void> VMWareDisplayConnector::flush_first_surface()
75{
76 // FIXME: Cache these values but keep them in sync with the parent adapter.
77 auto width = m_parent_adapter->primary_screen_width({});
78 auto height = m_parent_adapter->primary_screen_height({});
79 m_parent_adapter->primary_screen_flush({}, width, height);
80 return {};
81}
82
83ErrorOr<void> VMWareDisplayConnector::set_y_offset(size_t)
84{
85 return Error::from_errno(ENOTSUP);
86}
87
88ErrorOr<void> VMWareDisplayConnector::flush_rectangle(size_t, FBRect const&)
89{
90 // FIXME: It costs really nothing to flush the entire screen (at least in QEMU).
91 // Try to implement better partial rectangle flush method instead here.
92 VERIFY(m_flushing_lock.is_locked());
93 // FIXME: Cache these values but keep them in sync with the parent adapter.
94 auto width = m_parent_adapter->primary_screen_width({});
95 auto height = m_parent_adapter->primary_screen_height({});
96 m_parent_adapter->primary_screen_flush({}, width, height);
97 return {};
98}
99
100ErrorOr<void> VMWareDisplayConnector::set_mode_setting(ModeSetting const& mode_setting)
101{
102 SpinlockLocker locker(m_modeset_lock);
103 VERIFY(m_framebuffer_console);
104 size_t width = mode_setting.horizontal_active;
105 size_t height = mode_setting.vertical_active;
106
107 if (Checked<size_t>::multiplication_would_overflow(width, height, sizeof(u32)))
108 return EOVERFLOW;
109
110 TRY(m_parent_adapter->modeset_primary_screen_resolution({}, width, height));
111
112 m_framebuffer_console->set_resolution(width, height, width * sizeof(u32));
113
114 auto pitch = m_parent_adapter->primary_screen_pitch({});
115 DisplayConnector::ModeSetting current_mode_setting {
116 .horizontal_stride = pitch,
117 .pixel_clock_in_khz = 0, // Note: There's no pixel clock in paravirtualized hardware
118 .horizontal_active = width,
119 .horizontal_front_porch_pixels = 0, // Note: There's no horizontal_front_porch_pixels in paravirtualized hardware
120 .horizontal_sync_time_pixels = 0, // Note: There's no horizontal_sync_time_pixels in paravirtualized hardware
121 .horizontal_blank_pixels = 0, // Note: There's no horizontal_blank_pixels in paravirtualized hardware
122 .vertical_active = height,
123 .vertical_front_porch_lines = 0, // Note: There's no vertical_front_porch_lines in paravirtualized hardware
124 .vertical_sync_time_lines = 0, // Note: There's no vertical_sync_time_lines in paravirtualized hardware
125 .vertical_blank_lines = 0, // Note: There's no vertical_blank_lines in paravirtualized hardware
126 .horizontal_offset = 0,
127 .vertical_offset = 0,
128 };
129 m_current_mode_setting = current_mode_setting;
130 return {};
131}
132
133}