radio 433 MHz added and gpio support

server/gpio.cpp

@@ -0,0 +1,208 @@
+#include "gpio.h"
+#include <QDebug>
+
+Gpio::Gpio(QObject *parent, int gpio) :
+    QObject(parent),m_gpio(gpio)
+{
+    exportGpio();
+}
+
+Gpio::~Gpio()
+{
+    unexportGpio();
+}
+
+bool Gpio::exportGpio()
+{
+    char buf[64];
+
+    int fd = open("/sys/class/gpio/export", O_WRONLY);
+    if (fd < 0) {
+        qDebug() << "ERROR: could not open /sys/class/gpio/export";
+        return false;
+    }
+
+    int len = snprintf(buf, sizeof(buf), "%d", m_gpio);
+    write(fd, buf, len);
+    close(fd);
+
+    return true;
+}
+
+bool Gpio::unexportGpio()
+{
+    char buf[64];
+
+    int fd = open("/sys/class/gpio/unexport", O_WRONLY);
+    if (fd < 0) {
+        qDebug() << "ERROR: could not open /sys/class/gpio/unexport";
+        return false;
+    }
+    int len = snprintf(buf, sizeof(buf), "%d", m_gpio);
+    write(fd, buf, len);
+    close(fd);
+
+    return true;
+}
+
+int Gpio::openGpio()
+{
+    char buf[64];
+
+    snprintf(buf, sizeof(buf), "/sys/class/gpio/gpio%d/value", m_gpio);
+
+    int fd = open(buf, O_RDONLY | O_NONBLOCK );
+    if (fd < 0) {
+        qDebug() << "ERROR: could not open /sys/class/gpio" << m_gpio << "/direction";
+        return fd;
+    }
+    return fd;
+}
+
+bool Gpio::setDirection(int dir)
+{
+    char buf[64];
+    snprintf(buf, sizeof(buf), "/sys/class/gpio/gpio%d/direction", m_gpio);
+
+    int fd = open(buf, O_WRONLY);
+    if (fd < 0) {
+        qDebug() << "ERROR: could not open /sys/class/gpio" << m_gpio << "/direction";
+        return false;
+    }
+    if(dir == INPUT){
+        write(fd, "in", 3);
+        m_dir = INPUT;
+        close(fd);
+        return true;
+    }
+    if(dir == OUTPUT){
+        write(fd, "out", 4);
+        m_dir = OUTPUT;
+        close(fd);
+        return true;
+    }
+    close(fd);
+    return false;
+}
+
+bool Gpio::setValue(unsigned int value)
+{
+    // check if gpio is a output
+    if( m_dir == OUTPUT){
+        char buf[64];
+        snprintf(buf, sizeof(buf), "/sys/class/gpio/gpio%d/value", m_gpio);
+
+        int fd = open(buf, O_WRONLY);
+        if (fd < 0) {
+            qDebug() << "ERROR: could not open /sys/class/gpio" << m_gpio << "/value";
+            return false;
+        }
+
+        if(value == LOW){
+            write(fd, "0", 2);
+            close(fd);
+            return true;
+        }
+        if(value == HIGH){
+            write(fd, "1", 2);
+            close(fd);
+            return true;
+        }
+        close(fd);
+        return false;
+    }else{
+        qDebug() << "ERROR: Gpio" << m_gpio << "is not a OUTPUT.";
+        return false;
+    }
+}
+
+int Gpio::getValue()
+{
+    char buf[64];
+
+    snprintf(buf, sizeof(buf), "/sys/class/gpio/gpio%d/value", m_gpio);
+
+    int fd = open(buf, O_RDONLY);
+    if (fd < 0) {
+        qDebug() << "ERROR: could not open /sys/class/gpio" << m_gpio << "/value";
+        return -1;
+    }
+
+    char ch;
+    int value = -1;
+
+    read(fd, &ch, 1);
+
+    if (ch != '0') {
+        value = 1;
+    }else{
+        value = 0;
+    }
+    close(fd);
+
+    qDebug() << "gpio" << m_gpio << "value = " << value;
+    return value;
+}
+
+bool Gpio::setEdgeInterrupt(int edge)
+{
+    char buf[64];
+    snprintf(buf, sizeof(buf), "/sys/class/gpio/gpio%d/edge", m_gpio);
+
+    int fd = open(buf, O_WRONLY);
+    if (fd < 0) {
+        qDebug() << "ERROR: could not open /sys/class/gpio" << m_gpio << "/edge";
+        return false;
+    }
+
+    if(edge == EDGE_FALLING){
+        write(fd, "falling", 8);
+        close(fd);
+        return true;
+    }
+    if(edge == EDGE_RISING){
+        write(fd, "rising", 7);
+        close(fd);
+        return true;
+    }
+    if(edge == EDGE_BOTH){
+        write(fd, "both", 5);
+        close(fd);
+        return true;
+    }
+    close(fd);
+    return false;
+}
+
+void Gpio::enableInterrupt()
+{
+    struct pollfd fdset[2];
+    int gpio_fd = openGpio();
+    int nfds = 2;
+    int rc;
+    int timeout = 3000;
+    char buf[64];
+
+    while(1){
+        memset((void*)fdset, 0, sizeof(fdset));
+        fdset[0].fd = STDIN_FILENO;
+        fdset[0].events = POLLIN;
+
+        fdset[1].fd = gpio_fd;
+        fdset[1].events = POLLPRI;
+
+        rc = poll(fdset, nfds, timeout);
+
+        if (rc < 0) {
+            qDebug() << "ERROR: poll failed";
+            return;
+        }
+        if(rc == 0){
+            //timeout
+        }
+        if (fdset[1].revents & POLLPRI) {
+            read(fdset[1].fd, buf, 64);
+            emit pinInterrupt();
+        }
+    }
+}

server/gpio.h

@@ -0,0 +1,83 @@
+#ifndef GPIO_H
+#define GPIO_H
+
+#include <QObject>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+
+#define     INPUT   0
+#define     OUTPUT  1
+#define     LOW     0
+#define     HIGH    1
+
+#define     EDGE_FALLING    0
+#define     EDGE_RISING     1
+#define     EDGE_BOTH       2
+
+/**********************************
+ *   ______________________
+ *  |______________________|
+ *  |  File NR. |  PIN NR. |
+ *  |___________|__________|
+ *  |  GPIO 2   |   3      |
+ *  |  GPIO 3   |   5      |
+ *  |  GPIO 4   |   7      |
+ *  |  GPIO 7   |   26     |
+ *  |  GPIO 8   |   24     |
+ *  |  GPIO 9   |   21     |
+ *  |  GPIO 10  |   19     |
+ *  |  GPIO 11  |   23     |
+ *  |  GPIO 14  |   8      |
+ *  |  GPIO 15  |   10     |
+ *  |  GPIO 17  |   11     |
+ *  |  GPIO 18  |   12     |
+ *  |  GPIO 22  |   15     |
+ *  |  GPIO 23  |   16     |
+ *  |  GPIO 24  |   18     |
+ *  |  GPIO 25  |   22     |
+ *  |  GPIO 27  |   13     |
+ *  |___________|__________|
+ *
+ **********************************
+ */
+
+class Gpio : public QObject
+{
+    Q_OBJECT
+public:
+    explicit Gpio(QObject *parent = 0, int gpio = 0);
+    ~Gpio();
+
+    bool exportGpio();
+    bool unexportGpio();
+
+    int openGpio();
+
+    bool setDirection(int dir);
+
+    bool setValue(unsigned int value);
+    int getValue();
+
+    bool setEdgeInterrupt(int edge);
+
+
+
+
+private:
+    int m_gpio;
+    int m_dir;
+
+signals:
+    void pinInterrupt();
+
+public slots:
+    void enableInterrupt();
+
+};
+
+#endif // GPIO_H

server/hivecore.cpp

@@ -31,20 +31,112 @@ HiveCore::HiveCore(QObject *parent) :
     // start the server
     m_jsonServer = new JsonRPCServer(this);
 
+    m_radio433 = new Radio433(this);
+
+    //==============================================
+    int pulseLenght = 350;
+    QList<int> signal;
+    //sync
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*31);
+
+    //==============================================
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+    //==============================================
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+    //==============================================
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 1
+    signal.append(pulseLenght*3);
+    signal.append(pulseLenght);
+
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    // 0
+    signal.append(pulseLenght);
+    signal.append(pulseLenght*3);
+    //==============================================
+
+    qDebug() << "sendsignal";
+
+    m_radio433->sendData(signal);
+    m_radio433->sendData(signal);
+    m_radio433->sendData(signal);
+    m_radio433->sendData(signal);
 
 
 
-//    // create 433.92 MHz sender
-//    m_sender = new RadioSender(this);
-//    m_sender->setFrequency(RadioSender::RF433MHz);
-//    m_sender->setLineCode(RadioSender::SWITCH);
-//    m_sender->setPulseLength(320);
-////    //m_sender->sendBin("000000000000010101010001");
-
-//    // create 433.92 MHz receiver
-//    m_reciver = new RadioReciver(this);
-//    m_reciver->setFrequency(RadioReciver::RF433MHz);
-//    m_reciver->setPin(2);
-//    m_reciver->enableReceiver();
 
 }

server/hivecore.h

@@ -2,11 +2,7 @@
 #define HIVECORE_H
 
 #include <QObject>
-//#include "server.h"
+#include <radio433.h>
-//#include "devicemanager.h"
-//#include <jsonhandler.h>
-//#include "radio/radioreciver.h"
-//#include "radio/radiosender.h"
 
 class JsonRPCServer;
 class Device;
@@ -25,6 +21,7 @@ private:
     static HiveCore *s_instance;
 
     JsonRPCServer *m_jsonServer;
+    Radio433 *m_radio433;
 
 //    Server *m_server;
 //    RadioReciver *m_reciver;

server/radio433.cpp

@@ -1,10 +1,145 @@
 #include "radio433.h"
+#include <QDebug>
+#include <sys/time.h>
 
-Radio433::Radio433(QObject *parent)
+
+Radio433::Radio433(QObject *parent) :
+    QObject(parent)
 {
+    // Set up receiver
+    m_receiverThread = new QThread(this);
+    m_receiver = new Gpio(0,27);
+    m_receiver->setDirection(INPUT);
+    m_receiver->setEdgeInterrupt(EDGE_BOTH);
+    m_receiver->moveToThread(m_receiverThread);
 
+    // Set up transmitter
+    m_transmitter = new Gpio(this,22);
+    m_transmitter->setDirection(OUTPUT);
+    m_transmitter->setValue(LOW);
+
+    connect(m_receiverThread,SIGNAL(finished()),this,SLOT(deleteLater()));
+    connect(m_receiver,SIGNAL(pinInterrupt()),this,SLOT(handleInterrupt()));
+
+    enableReceiver();
+}
+
+Radio433::~Radio433()
+{
+    m_receiverThread->quit();
+    m_receiverThread->wait();
 }
 
 void Radio433::sendData(QList<int> rawData)
 {
+
+    //first we have to disable our receiver, to prevent reading the hive signal it self
+    disableReceiver();
+
+    m_transmitter->setValue(LOW);
+    delayMicroseconds(500);
+
+    int flag=1;
+    foreach (int delay, rawData) {
+        // 1 = High, 0 = Low
+        m_transmitter->setValue(flag++ %2);
+        delayMicroseconds(delay);
+    }
+
+    // reenable it
+    enableReceiver();
+
+}
+
+int Radio433::micros()
+{
+    struct timeval tv ;
+    int now ;
+
+    gettimeofday (&tv, NULL) ;
+    now  = (int)tv.tv_sec * (int)1000000 + (int)tv.tv_usec ;
+
+    return (int)(now - m_epochMicro) ;
+}
+
+void Radio433::delayMicroseconds(int pulseLength)
+{
+    struct timespec sleeper ;
+
+    if(pulseLength <= 0){
+        return;
+    }else {
+        if(pulseLength < 100){
+            struct timeval tNow, tLong, tEnd ;
+
+            gettimeofday (&tNow, NULL) ;
+            tLong.tv_sec  = pulseLength / 1000000 ;
+            tLong.tv_usec = pulseLength % 1000000 ;
+            timeradd (&tNow, &tLong, &tEnd) ;
+
+            while (timercmp (&tNow, &tEnd, <)){
+                gettimeofday (&tNow, NULL) ;
+            }
+        }
+        sleeper.tv_sec  = 0 ;
+        sleeper.tv_nsec = (long)(pulseLength * 1000) ;
+        nanosleep (&sleeper, NULL) ;
+    }
+}
+
+
+void Radio433::handleInterrupt()
+{
+    long currentTime = micros();
+    m_duration = currentTime - m_lastTime;
+
+    // filter nois
+    if (m_duration > 5000 && m_duration > m_timings[0] - 200 && m_duration < m_timings[0] + 200) {
+        m_repeatCount++;
+        m_changeCount--;
+
+        if(m_repeatCount == 2) {
+            // if we have a regular signal (1 bit sync + 48 bit data)
+            if(m_changeCount == RC_MAX_CHANGES){
+                // write rawdata to a List and reset values to 0
+                QList<int> rawData;
+                for(int i = 0; i < RC_MAX_CHANGES; i++ ){
+                    rawData.append(m_timings[i]);
+                    m_timings[i] = 0;
+                }
+                qDebug() << "-----------------------------------------------------------";
+                qDebug() << "|                    GENERIC signal                       |";
+                qDebug() << "-----------------------------------------------------------";
+                qDebug() << "delay      :" << rawData.first() /31;
+                qDebug() << rawData;
+
+                emit dataReceived(rawData);
+            }
+            m_repeatCount = 0;
+        }
+        m_changeCount = 0;
+
+    }else if(m_duration > 5000){
+        m_changeCount = 0;
+    }
+    if (m_changeCount > RC_MAX_CHANGES) {
+        m_changeCount = 0;
+        m_repeatCount = 0;
+    }
+    m_timings[m_changeCount++] = m_duration;
+    m_lastTime = currentTime;
+}
+
+void Radio433::enableReceiver()
+{
+    m_receiverThread->start();
+    m_receiver->enableInterrupt();
+    qDebug() << "receiver enabeld.";
+}
+
+void Radio433::disableReceiver()
+{
+    m_receiverThread->quit();
+    m_receiverThread->wait();
+    qDebug() << "receiver disabeld.";
 }

server/radio433.h

@@ -2,6 +2,10 @@
 #define RADIO433_h
 
 #include <QObject>
+#include <QThread>
+#include <gpio.h>
+
+#define RC_MAX_CHANGES 49
 
 class Radio433: public QObject
 {
@@ -9,10 +13,34 @@ class Radio433: public QObject
 
 public:
     Radio433(QObject *parent = 0);
+    ~Radio433();
 
 public:
     void sendData(QList<int> rawData);
 
+private:
+    Gpio *m_receiver;
+    Gpio *m_transmitter;
+    QThread *m_receiverThread;
+
+    unsigned int m_timings[RC_MAX_CHANGES];
+    unsigned int m_duration;
+    unsigned int m_changeCount;
+    unsigned long m_lastTime;
+    unsigned int m_repeatCount;
+    unsigned int m_epochMicro;
+
+    int micros();
+    void delayMicroseconds(int pulseLength);
+
+    void enableReceiver();
+    void disableReceiver();
+
+
+private slots:
+    void handleInterrupt();
+
+
 signals:
     void dataReceived(QList<int> rawData);
 };

server/server.pro

@@ -1,10 +1,11 @@
-include(../common.pri)
-
 TARGET = hive
 TEMPLATE = app
 
 INCLUDEPATH += ../libhive
 
+target.path = /usr/bin
+INSTALLS += target
+
 QT += network
 
 LIBS += -L../libhive/ -lhive
@@ -13,9 +14,11 @@ SOURCES += main.cpp \
            hivecore.cpp \
            jsonrpcserver.cpp \
            radio433.cpp \
-           tcpserver.cpp
+           tcpserver.cpp \
+    gpio.cpp
 
 HEADERS += hivecore.h \
            jsonrpcserver.h \
            radio433.h \
-           tcpserver.h
+           tcpserver.h \
+    gpio.h