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#ifndef DEVICE_H
#define DEVICE_H
#include <chrono>
#include <hidapi/hidapi.h>
#include "inttypes.h"
#define HID_REPORT_SIZE 65
// TODO !! SEMAPHORE
namespace nitrokey {
namespace device {
enum class CommError
{
ERR_NO_ERROR = 0,
ERR_NOT_CONNECTED = -1,
ERR_WRONG_RESPONSE_CRC = -2,
ERR_SENDING = -3,
ERR_STATUS_NOT_OK = -4
};
class Device {
public:
Device();
// lack of device is not actually an error,
// so it doesn't throw
virtual bool connect();
virtual bool disconnect();
/*
* Sends packet of HID_REPORT_SIZE.
*/
virtual CommError send(const void *packet);
/*
* Gets packet of HID_REPORT_SIZE.
* Can sleep. See below.
*/
virtual CommError recv(void *packet);
protected:
uint16_t m_vid;
uint16_t m_pid;
/*
* While the project uses Signal11 portable HIDAPI
* library, there's no way of doing it asynchronously,
* hence polling.
*/
int m_retry_count;
std::chrono::milliseconds m_retry_timeout;
hid_device *mp_devhandle;
};
class Stick10 : public Device {
public:
Stick10();
};
class Stick20 : public Device {
public:
Stick20();
};
}
}
#endif
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