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121 lines
2.5 KiB
C++
121 lines
2.5 KiB
C++
#ifndef PROVIDERRS232_H
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#define PROVIDERRS232_H
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// LedDevice includes
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#include <leddevice/LedDevice.h>
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// qt includes
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#include <QSerialPort>
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///
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/// The ProviderRs232 implements an abstract base-class for LedDevices using a RS232-device.
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///
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class ProviderRs232 : public LedDevice
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{
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Q_OBJECT
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public:
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///
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/// @brief Constructs a RS232 LED-device
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///
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ProviderRs232(const QJsonObject &deviceConfig);
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///
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/// @brief Destructor of the UDP LED-device
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///
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~ProviderRs232() override;
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protected:
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///
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/// @brief Initialise the RS232 device's configuration and network address details
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///
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/// @param[in] deviceConfig the JSON device configuration
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/// @return True, if success
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///
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bool init(const QJsonObject &deviceConfig) override;
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///
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/// @brief Opens the output device.
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///
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/// @return Zero on success (i.e. device is ready), else negative
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///
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int open() override;
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///
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/// @brief Closes the UDP device.
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///
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/// @return Zero on success (i.e. device is closed), else negative
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///
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int close() override;
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///
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/// @brief Power-/turn off a RS232-device
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///
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/// The off-state is simulated by writing "Black to LED"
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///
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/// @return True, if success
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///
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bool powerOff() override;
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///
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/// @brief Discover first devices of a serial device available (for configuration)
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///
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/// @return A string of the device found
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///
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QString discoverFirst() override;
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///
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/// @brief Discover RS232 serial devices available (for configuration).
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///
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/// @return A JSON structure holding a list of devices found
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///
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QJsonObject discover() override;
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///
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/// @brief Write the given bytes to the RS232-device
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///
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/// @param[in[ size The length of the data
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/// @param[in] data The data
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/// @return Zero on success, else negative
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///
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int writeBytes(const qint64 size, const uint8_t *data);
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/// The name of the output device
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QString _deviceName;
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/// The RS232 serial-device
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QSerialPort _rs232Port;
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/// The used baud-rate of the output device
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qint32 _baudRate_Hz;
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protected slots:
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///
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/// @brief Set device in error state
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///
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/// @param errorMsg The error message to be logged
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///
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void setInError( const QString& errorMsg) override;
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private:
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///
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/// @brief Try to open device if not opened
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///
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/// @return True,if on success
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///
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bool tryOpen(int delayAfterConnect_ms);
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/// Try to auto-discover device name?
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bool _isAutoDeviceName;
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/// Sleep after the connect before continuing
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int _delayAfterConnect_ms;
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/// Frames dropped, as write failed
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int _frameDropCounter;
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};
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#endif // PROVIDERRS232_H
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