eglfs_kms: Implement DPMS mode

Implement the new QPlatformScreen API for power state.

[ChangeLog][QPA][eglfs][kms] Allow to set DPMS mode and get the current
value for each screen.

Change-Id: I5abfb53c3e2f6579a2d6ff19d780b67f424903bf
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>

1 files changed, 18 insertions, 1 deletions

diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsdevice.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsdevice.cpp
index 0fa191ea60..f3df1f8445 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsdevice.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsdevice.cpp
@@ -283,7 +283,8 @@ QEglFSKmsScreen *QEglFSKmsDevice::screenForConnector(drmModeResPtr resources, dr
         selected_mode,
         false,
         drmModeGetCrtc(m_dri_fd, crtc_id),
-        modes
+        modes,
+        connectorProperty(connector, QByteArrayLiteral("DPMS"))
     };
 
     m_crtc_allocator |= (1 << output.crtc_id);
@@ -292,6 +293,22 @@ QEglFSKmsScreen *QEglFSKmsDevice::screenForConnector(drmModeResPtr resources, dr
     return new QEglFSKmsScreen(m_integration, this, output, pos);
 }
 
+drmModePropertyPtr QEglFSKmsDevice::connectorProperty(drmModeConnectorPtr connector, const QByteArray &name)
+{
+    drmModePropertyPtr prop;
+
+    for (int i = 0; i < connector->count_props; i++) {
+        prop = drmModeGetProperty(m_dri_fd, connector->props[i]);
+        if (!prop)
+            continue;
+        if (strcmp(prop->name, name.constData()) == 0)
+            return prop;
+        drmModeFreeProperty(prop);
+    }
+
+    return Q_NULLPTR;
+}
+
 void QEglFSKmsDevice::pageFlipHandler(int fd, unsigned int sequence, unsigned int tv_sec, unsigned int tv_usec, void *user_data)
 {
     Q_UNUSED(fd);