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83 lines
1.9 KiB
C++
83 lines
1.9 KiB
C++
#ifndef LEDEVICEPIBLASTER_H
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#define LEDEVICEPIBLASTER_H
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// LedDevice includes
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#include <leddevice/LedDevice.h>
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///
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/// Implementation of the LedDevice interface for writing to pi-blaster based PWM LEDs
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///
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class LedDevicePiBlaster : public LedDevice
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{
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public:
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///
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/// @brief Constructs a pi-Blaster LED-device
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///
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/// @param deviceConfig Device's configuration as JSON-Object
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///
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explicit LedDevicePiBlaster(const QJsonObject &deviceConfig);
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///
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/// @brief Destructor of the LedDevice
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///
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~LedDevicePiBlaster() override;
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///
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/// @brief Constructs the LED-device
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///
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/// @param[in] deviceConfig Device's configuration as JSON-Object
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/// @return LedDevice constructed
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static LedDevice* construct(const QJsonObject &deviceConfig);
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/// @param[in] params Parameters used to overwrite discovery default behaviour
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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(const QJsonObject& params) override;
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protected:
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///
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/// @brief Initialise the device's configuration
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///
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/// @param[in] deviceConfig the JSON device configuration
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bool init(const QJsonObject &deviceConfig) override;
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///
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/// Attempts to open the piblaster-device. This will only succeed if the device is not yet open
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/// and the device is available.
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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 output 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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private:
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///
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/// @brief Writes the RGB-Color values to the LEDs.
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///
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/// @param[in] ledValues The RGB-color per LED
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/// @return Zero on success, else negative
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///
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int write(const std::vector<ColorRgb> &ledValues) override;
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/// The name of the output device (very likely '/dev/pi-blaster')
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QString _deviceName;
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int _gpio_to_led[64];
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char _gpio_to_color[64];
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/// File-Pointer to the PiBlaster device
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FILE * _fid;
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};
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#endif // LEDEVICETEMPLATE_H
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