Add CCWakelineAbstraction

dCArun/CCWakelineAbstraction.cpp

@@ -0,0 +1,51 @@
+#include <QFileSystemWatcher>
+#include <QFile>
+
+#include <QDebug>
+
+#include "CCWakelineAbstraction.h"
+#include "plugin.h"
+
+/**
+ * this is based on a solution from:
+ * https://embeddeduse.com/2018/09/18/monitoring-sys-files-qfilesystemwatcher/
+ *
+ */
+
+CCWakelineAbstraction::CCWakelineAbstraction(hwinf *dc, QObject *parent)
+    : QObject(parent)
+    , dc(dc)
+{
+    auto ccWakeMonitor = new QFileSystemWatcher(this);
+
+    ccWakeMonitor->addPath("/sys/class/leds/wakeupctrl_cc/brightness");
+    connect(ccWakeMonitor, &QFileSystemWatcher::fileChanged,
+                this, &CCWakelineAbstraction::ccWakeChanged);
+
+    qCritical() << "... init CCWakelineAbstraction";
+}
+
+
+void CCWakelineAbstraction::ccWakeChanged(const QString &path)
+{
+    QFile ccWakeFile(path);
+     if (!ccWakeFile.open(QIODevice::ReadOnly)) {
+         qWarning() << "ERROR: Could not open ccWakeFile file.";
+         return;
+     }
+     auto ccWake = ccWakeFile.readAll();
+     if (!ccWake.isEmpty()) {
+         int state = ccWake.at(0);
+         //qCritical() << "INFO: ccWake = " << state;
+         switch (state) {
+         case 0x30:  // '1'
+             qCritical() << "INFO: ccWake -> sleep";
+             this->dc->credit_switchWake(true); // switch 'sleep'
+             break;
+         case 0x31:  // '0'
+             qCritical() << "INFO: ccWake -> wake";
+             this->dc->credit_switchWake(false); // switch 'wake'
+             break;
+         }
+     }
+}