Add watcher for switching on/off modem

Use commands credit_switchWake/switchPower to reboot cc-terminal.

include/hwapi.h

@@ -63,7 +63,8 @@ V4.0  6.9.2023: activating DC-Bootloader in slve-lib (SM)
 #include "shared_mem_buffer.h"
 #include "runProc.h"
 #include "interfaces.h"
-
+#include <QScopedPointer>
+#include <QFileSystemWatcher>
 
 /*
  * select Plugin Type here
@@ -98,7 +99,7 @@ V4.0  6.9.2023: activating DC-Bootloader in slve-lib (SM)
 //#define THIS_IS_CA_MASTER
 
 
-
+class QFileSystemWatcher;
 class QSharedMemory;
 class DownloadThread;
 class ReportingThread;
@@ -115,7 +116,13 @@ private:
     QSharedMemory *m_sharedMem;
     ReportingThread *m_reportingThread;
     DownloadThread *m_downloadThread;
-    //QTimer *hwapi_triggerBL;
+    QScopedPointer<QFileSystemWatcher> m_fileSystemWatcher;
+
+    QString m_powerctrl_cc;
+    QString m_powerctrl_modem;
+
+private slots:
+    void onCCWakeGpioChanged(QString const &file);
 
 public:
     explicit hwapi(QObject *parent = nullptr);

src/hwapi.cpp

@@ -15,6 +15,8 @@
 #include <cstring>
 #include <QThread>
 #include <QDebug>
+#include <QFileSystemWatcher>
+#include <QSettings>
 
 
 static uint32_t hwapi_lastStartAmount;
@@ -35,6 +37,7 @@ hwapi::hwapi(QObject *parent) : QObject(parent)
     qCritical() << "    hwapi::hwapi() APP_EXTENDED_VERSION:" << APP_EXTENDED_VERSION;
     qCritical() << "hwapi::hwapi() APP_EXTENDED_VERSION_LIB:" << APP_EXTENDED_VERSION_LIB;
 
+    m_fileSystemWatcher.reset();
 
     // create or attach shared memory segment
     m_sharedMem = SharedMem::getShm(sizeof(SharedMem));
@@ -56,8 +59,26 @@ hwapi::hwapi(QObject *parent) : QObject(parent)
 #error "SLAVE LIB COMPILED INTO MASTER"
 #endif
 
-        myDatif = new T_datif(this);    // für die  CAslave-Lib auskommentieren!
+        QSettings settings("/opt/app/ATBAPP/ATBQT.ini", QSettings::IniFormat);
+        m_powerctrl_cc = settings.value("AsyncPOS_CCPlugin/terminal_watch_file",
+                                       "/run/powerctrl_cc").toString();
 
+        m_fileSystemWatcher.reset(new QFileSystemWatcher());
+
+        m_powerctrl_modem = "/run/powerctrl_modem";
+        m_fileSystemWatcher->addPath(m_powerctrl_modem);
+
+
+        if (!m_fileSystemWatcher->addPath(m_powerctrl_cc)) {
+            qCritical() << "cannot add path for" << m_powerctrl_cc;
+        } else {
+            if (connect(m_fileSystemWatcher.get(), SIGNAL(fileChanged(QString const&)),
+                        this, SLOT(onCCWakeGpioChanged(QString const&)))) {
+                qCritical() << "connected file watcher with" << m_powerctrl_cc;
+            }
+        }
+
+        myDatif = new T_datif(this);    // für die  CAslave-Lib auskommentieren!
 #endif
 
 #ifdef THIS_IS_CA_SLAVE
@@ -120,6 +141,62 @@ hwapi::hwapi(QObject *parent) : QObject(parent)
     connect(runProcess, SIGNAL(runProc_coinAttached()),                 this, SLOT(coinAttached()));
 }
 
+void hwapi::onCCWakeGpioChanged(QString const &fileName) {
+
+    qCritical() << __func__ << ":" << __LINE__ << fileName;
+
+    if (fileName == m_powerctrl_cc) {
+
+        QFile f(m_powerctrl_cc);
+        if (f.exists() && f.open(QFile::ReadOnly | QFile::Text)) {
+            QTextStream stream(&f);
+            QString const &content = stream.readAll();
+            if (content.startsWith("0")) {
+                qCritical() << __func__ << ":" << __LINE__ << "switching cc-terminal off...";
+                credit_switchWake(false);
+                credit_switchPower(false);
+            } else
+            if (content.startsWith("1")) {
+                qCritical() << __func__ << ":" << __LINE__ << "switching cc-terminal on...";
+                credit_switchPower(true);
+                credit_switchWake(true);
+            } else
+            if (content.startsWith("2")) {
+                qCritical() << __func__ << ":" << __LINE__ << "switching cc-terminal off and on...";
+                credit_switchWake(false);
+                credit_switchPower(false);
+                QThread::sleep(1);
+                credit_switchPower(true);
+                credit_switchWake(true);
+            } else {
+                qCritical() << "switching cc-terminal watched file contained" << content;
+                QFile::resize(m_powerctrl_cc, 0); // empty file
+            }
+        }
+    }
+    else if (fileName == m_powerctrl_modem) {
+
+        QFile f(m_powerctrl_modem);
+        if (f.exists() && f.open(QFile::ReadOnly | QFile::Text)) {
+            QTextStream stream(&f);
+            QString const &content = stream.readAll();
+            if (content.startsWith("0")) {
+                qCritical() << __func__ << ":" << __LINE__ << "switching modem off...";
+                mod_switchWake(false);
+                mod_switchPower(false);
+            } else
+            if (content.startsWith("1")) {
+                qCritical() << __func__ << ":" << __LINE__ << "switching modem on...";
+                mod_switchWake(true);
+                mod_switchPower(true);
+            }
+        }
+    }
+    else {
+        qCritical() << "ERROR watching the wrong file" << fileName << m_powerctrl_cc;
+    }
+}
+
 void hwapi::hwapi_slotPayProc(void)
 {