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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| include(ECMQtDeclareLoggingCategory) | ||
| ecm_qt_declare_logging_category( | ||
| AuroraDeviceIntegrationDrm_SOURCES | ||
| HEADER "drmloggingcategories.h" | ||
| IDENTIFIER "Aurora::Platform::gLcDrm" | ||
| CATEGORY_NAME "aurora.platform.drm" | ||
| DEFAULT_SEVERITY "Info" | ||
| DESCRIPTION "Aurora device integration for DRM/KMS" | ||
| ) | ||
|
|
||
| qt6_add_plugin(AuroraDeviceIntegrationDrm | ||
| SHARED | ||
| CLASS_NAME DrmIntegrationPlugin | ||
| MANUAL_FINALIZATION | ||
| drm.json | ||
| drmbackend.cpp drmbackend.h | ||
| drmblob.cpp drmblob.h | ||
| drmcrtc.cpp drmcrtc.h | ||
| drmcursor.cpp drmcursor.h | ||
| drmgpu.cpp drmgpu.h | ||
| drmintegration.cpp drmintegration.h | ||
| drmintegrationplugin.cpp drmintegrationplugin.h | ||
| drmobject.cpp drmobject.h | ||
| drmoutput.cpp drmoutput.h | ||
| drmplane.cpp drmplane.h | ||
| drmpointer.h | ||
| drmproperty.cpp drmproperty.h | ||
| drmwindow.cpp drmwindow.h | ||
| ${AuroraDeviceIntegrationDrm_SOURCES} | ||
| ) | ||
|
|
||
| set_target_properties(AuroraDeviceIntegrationDrm | ||
| PROPERTIES OUTPUT_NAME drm | ||
| ) | ||
|
|
||
| target_link_libraries(AuroraDeviceIntegrationDrm | ||
| PUBLIC | ||
| Qt6::Core | ||
| Qt6::Gui | ||
| Liri::AuroraCore | ||
| Liri::AuroraPlatform | ||
| EGL::EGL | ||
| PkgConfig::Libdrm | ||
| PkgConfig::Gbm | ||
| PRIVATE | ||
| Liri::AuroraPlatformPrivate | ||
| ) | ||
|
|
||
| qt6_finalize_target(AuroraDeviceIntegrationDrm) | ||
|
|
||
| install( | ||
| TARGETS AuroraDeviceIntegrationDrm | ||
| DESTINATION ${KDE_INSTALL_PLUGINDIR}/aurora/deviceintegration | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| { | ||
| "Keys": [ "drm" ] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,227 @@ | ||
| // SPDX-FileCopyrightText: 2023 Pier Luigi Fiorini <[email protected]> | ||
| // SPDX-License-Identifier: GPL-3.0-or-later | ||
|
|
||
| #include <LiriAuroraUdev/UdevEnumerate> | ||
|
|
||
| #include "drmbackend.h" | ||
| #include "drmgpu.h" | ||
| #include "drmloggingcategories.h" | ||
| #include "drmoutput.h" | ||
|
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| #include <sys/stat.h> | ||
|
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| #include <gbm.h> | ||
| #include <libdrm/drm_mode.h> | ||
| #include <xf86drm.h> | ||
| #include <xf86drmMode.h> | ||
|
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||
| #ifndef EGL_EXT_platform_base | ||
| typedef EGLDisplay(EGLAPIENTRYP PFNEGLGETPLATFORMDISPLAYEXTPROC)(EGLenum platform, | ||
| void *native_display, | ||
| const EGLint *attrib_list); | ||
| #endif | ||
|
|
||
| #ifndef EGL_PLATFORM_GBM_KHR | ||
| # define EGL_PLATFORM_GBM_KHR 0x31D7 | ||
| #endif | ||
|
|
||
| namespace Aurora { | ||
|
|
||
| namespace Platform { | ||
|
|
||
| Q_GLOBAL_STATIC(DrmBackend, gDrmBackend) | ||
|
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||
| DrmBackend::DrmBackend(QObject *parent) | ||
| : QObject(parent) | ||
| , m_session(Session::create(Session::Type::Logind, this)) | ||
| , m_udev(new Aurora::PlatformSupport::Udev()) | ||
| { | ||
| } | ||
|
|
||
| DrmBackend::~DrmBackend() | ||
| { | ||
| if (m_udev) { | ||
| delete m_udev; | ||
| m_udev = nullptr; | ||
| } | ||
| } | ||
|
|
||
| Session *DrmBackend::session() const | ||
| { | ||
| return m_session; | ||
| } | ||
|
|
||
| EGLDisplay DrmBackend::eglDisplay() const | ||
| { | ||
| return m_eglDisplay; | ||
| } | ||
|
|
||
| EGLNativeDisplayType DrmBackend::platformDisplay() const | ||
| { | ||
| if (m_gpu) | ||
| return reinterpret_cast<EGLNativeDisplayType>(m_gpu->gbmDevice()); | ||
| return EGL_CAST(EGLNativeDisplayType, 0); | ||
| } | ||
|
|
||
| bool DrmBackend::isAtomicEnabled() const | ||
| { | ||
| return m_enableAtomic; | ||
| } | ||
|
|
||
| DrmGpu *DrmBackend::primaryGpu() const | ||
| { | ||
| return m_gpu; | ||
| } | ||
|
|
||
| void DrmBackend::initialize() | ||
| { | ||
| if (m_initialized) | ||
| return; | ||
|
|
||
| m_initialized = true; | ||
|
|
||
| // Session | ||
| connect(m_session, &Session::devicePaused, this, [this](dev_t deviceId) { | ||
| if (auto *gpu = findGpu(deviceId)) | ||
| gpu->setActive(false); | ||
| }); | ||
| connect(m_session, &Session::deviceResumed, this, [this](dev_t deviceId) { | ||
| if (auto *gpu = findGpu(deviceId)) | ||
| gpu->setActive(true); | ||
| }); | ||
|
|
||
| // Find all GPUs | ||
| Aurora::PlatformSupport::UdevEnumerate enumerate( | ||
| Aurora::PlatformSupport::UdevDevice::PrimaryVideoDevice | ||
| | Aurora::PlatformSupport::UdevDevice::GenericVideoDevice, | ||
| m_udev); | ||
| auto udevDevices = enumerate.scan(); | ||
| if (Q_UNLIKELY(udevDevices.isEmpty())) | ||
| qFatal("Could not find DRM device!"); | ||
|
|
||
| // Create GPUs | ||
| if (!udevDevices.isEmpty()) { | ||
| qCDebug(gLcDrm, "Found the following video devices for the \"%s\" seat:", | ||
| qPrintable(m_session->seat())); | ||
| for (auto *udevDevice : qAsConst(udevDevices)) { | ||
| if (udevDevice->seat() == m_session->seat()) { | ||
| const auto path = udevDevice->deviceNode(); | ||
| qCDebug(gLcDrm) << '\t' << path.toLocal8Bit().constData(); | ||
| addGpu(path); | ||
| } | ||
| } | ||
| } | ||
| if (Q_UNLIKELY(m_gpus.isEmpty())) | ||
| qFatal("No suitable DRM device have been found"); | ||
|
|
||
| // Select the first one | ||
| m_gpu = m_gpus.first(); | ||
|
|
||
| // Create EGL display | ||
| createDisplay(); | ||
| } | ||
|
|
||
| void DrmBackend::destroy() | ||
| { | ||
| } | ||
|
|
||
| DrmBackend *DrmBackend::instance() | ||
| { | ||
| return gDrmBackend(); | ||
| } | ||
|
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||
| DrmGpu *DrmBackend::addGpu(const QString &path) | ||
| { | ||
| // Open the DRM device | ||
| int fd = m_session->openRestricted(path); | ||
| if (fd < 0) { | ||
| qCWarning(gLcDrm) << "Failed to open DRM device" << path; | ||
| return nullptr; | ||
| } | ||
|
|
||
| // Make a simpel DRM call to check if the device is usable | ||
| drmModeResPtr resources = drmModeGetResources(fd); | ||
| if (!resources) { | ||
| qCDebug(gLcDrm) << "Skipping KMS incapable DRM device" << path; | ||
| m_session->closeRestricted(fd); | ||
| return nullptr; | ||
| } | ||
| drmModeFreeResources(resources); | ||
|
|
||
| struct stat sbuf; | ||
| if (fstat(fd, &sbuf) < 0) { | ||
| qCDebug(gLcDrm, "Failed to fstat \"%s\": %s", qPrintable(path), strerror(errno)); | ||
| m_session->closeRestricted(fd); | ||
| return nullptr; | ||
| } | ||
|
|
||
| qCInfo(gLcDrm) << "Adding DRM device:" << path; | ||
|
|
||
| auto *gpu = new DrmGpu(path, fd, sbuf.st_rdev); | ||
| m_gpus.append(gpu); | ||
| emit gpuAdded(gpu); | ||
| return gpu; | ||
| } | ||
|
|
||
| DrmGpu *DrmBackend::findGpu(dev_t deviceId) const | ||
| { | ||
| auto it = std::find_if(m_gpus.begin(), m_gpus.end(), | ||
| [deviceId](const auto *gpu) { return gpu->deviceId() == deviceId; }); | ||
| return it == m_gpus.end() ? nullptr : *it; | ||
| } | ||
|
|
||
| void DrmBackend::createDisplay() | ||
| { | ||
| EGLNativeDisplayType nativeDisplay = platformDisplay(); | ||
|
|
||
| PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplay = nullptr; | ||
| const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS); | ||
| if (extensions | ||
| && (strstr(extensions, "EGL_KHR_platform_gbm") | ||
| || strstr(extensions, "EGL_MESA_platform_gbm"))) { | ||
| getPlatformDisplay = reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>( | ||
| eglGetProcAddress("eglGetPlatformDisplayEXT")); | ||
| } | ||
|
|
||
| if (getPlatformDisplay) { | ||
| m_eglDisplay = getPlatformDisplay(EGL_PLATFORM_GBM_KHR, nativeDisplay, nullptr); | ||
| } else { | ||
| qCDebug(gLcDrm, "No eglGetPlatformDisplay for GBM, falling back to eglGetDisplay"); | ||
| m_eglDisplay = eglGetDisplay(nativeDisplay); | ||
| } | ||
| } | ||
|
|
||
| void DrmBackend::updateOutputs() | ||
| { | ||
| for (auto it = m_gpus.begin(); it != m_gpus.end(); ++it) { | ||
| auto *gpu = (*it); | ||
| if (gpu->isRemoved()) | ||
| gpu->removeOutputs(); | ||
| else | ||
| gpu->updateOutputs(); | ||
| } | ||
|
|
||
| for (auto it = m_gpus.begin(); it != m_gpus.end();) { | ||
| auto *gpu = (*it); | ||
|
|
||
| if (gpu->isRemoved() || (gpu != m_gpu && gpu->hasDrmOutputs())) { | ||
| qCDebug(gLcDrm, "Removing GPU \"%s\"", qPrintable(gpu->deviceNode())); | ||
| it = m_gpus.erase(it); | ||
| emit gpuRemoved(gpu); | ||
| } else { | ||
| it++; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| void DrmBackend::addOutput(DrmOutput *output) | ||
| { | ||
| } | ||
|
|
||
| void DrmBackend::removeOutput(DrmOutput *output) | ||
| { | ||
| } | ||
|
|
||
| } // namespace Platform | ||
|
|
||
| } // namespace Aurora |
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