hyperion.ng/libsrc/leddevice/LedDeviceHyperionUsbasp.h

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#pragma once
// stl includes
#include <vector>
#include <cstdint>
#include <string>
// libusb include
#include <libusb.h>
// Hyperion includes
#include <leddevice/LedDevice.h>
///
/// LedDevice implementation for a lightpack device (http://code.google.com/p/light-pack/)
///
class LedDeviceHyperionUsbasp : public LedDevice
{
public:
// Commands to the Device
enum Commands {
CMD_WRITE_WS2801 = 10,
CMD_WRITE_WS2812 = 11
};
///
/// Constructs the LedDeviceLightpack
///
LedDeviceHyperionUsbasp(uint8_t writeLedsCommand);
///
/// Destructor of the LedDevice; closes the output device if it is open
///
virtual ~LedDeviceHyperionUsbasp();
///
/// Opens and configures the output device
///
/// @return Zero on succes else negative
///
int open();
///
/// Writes the RGB-Color values to the leds.
///
/// @param[in] ledValues The RGB-color per led
///
/// @return Zero on success else negative
///
virtual int write(const std::vector<ColorRgb>& ledValues);
///
/// Switch the leds off
///
/// @return Zero on success else negative
///
virtual int switchOff();
private:
///
/// Test if the device is a Hyperion Usbasp device
///
/// @return Zero on succes else negative
///
int testAndOpen(libusb_device * device);
static libusb_device_handle * openDevice(libusb_device * device);
static std::string getString(libusb_device * device, int stringDescriptorIndex);
private:
/// command to write the leds
const uint8_t _writeLedsCommand;
/// libusb context
libusb_context * _libusbContext;
/// libusb device handle
libusb_device_handle * _deviceHandle;
/// Number of leds
int _ledCount;
/// Usb device identifiers
static uint16_t _usbVendorId;
static uint16_t _usbProductId;
static std::string _usbProductDescription;
};