hid_macos.hh

#ifndef HID_MACOS_HH
#define HID_MACOS_HH
 
#include <QObject>
#include <IOKit/hid/IOHIDManager.h>
#include "errorstack.hh"
#include "radiointerface.hh"
 
class HIDevice: public QObject
{
    Q_OBJECT
 
public:
  class Descriptor: public USBDeviceDescriptor
  {
  public:
    Descriptor(const USBDeviceInfo &info, uint32_t locationId, uint16_t device);
  };
 
public:
    HIDevice(const USBDeviceDescriptor &descr, const ErrorStack &err=ErrorStack(), QObject *parent=nullptr);
    virtual ~HIDevice();
 
    bool isOpen() const;
 
    bool hid_send_recv(const unsigned char *data, unsigned nbytes,
                     unsigned char *rdata, unsigned rlength,
                     const ErrorStack &err=ErrorStack());
 
    void close();
 
public:
  static QList<USBDeviceDescriptor> detect(uint16_t vid, uint16_t pid);
 
protected:
    static void callback_input(void *context, IOReturn result, void *sender, IOHIDReportType type,
                               uint32_t reportID, uint8_t *data, CFIndex nbytes);
    static void callback_open(void *context, IOReturn result, void *sender, IOHIDDeviceRef deviceRef);
    static void callback_close(void *ontext, IOReturn result, void *sender, IOHIDDeviceRef deviceRef);
 
protected:
  IOHIDManagerRef _HIDManager;
    volatile IOHIDDeviceRef _dev;
    unsigned char _transfer_buf[42];
    unsigned char _receive_buf[42];
    volatile int _nbytes_received = 0;
};
 
#endif // HID_MACOS_HH