dfu_libusb.hh

#ifndef DFU_LIBUSB_HH
#define DFU_LIBUSB_HH
 
#include <QObject>
#include <libusb.h>
#include "errorstack.hh"
#include "radiointerface.hh"
 
class DFUDevice: public QObject
{
    Q_OBJECT
 
private:
  struct __attribute__((packed)) status_t {
        unsigned  status       : 8;
        unsigned  poll_timeout : 24;
        unsigned  state        : 8;
        unsigned  string_index : 8;
  };
 
public:
  class Descriptor: public USBDeviceDescriptor
  {
  public:
    Descriptor(const USBDeviceInfo &info, uint8_t bus, uint8_t device);
  };
 
public:
  DFUDevice(const USBDeviceDescriptor &descr, const ErrorStack &err=ErrorStack(), QObject *parent=nullptr);
    virtual ~DFUDevice();
 
  bool isOpen() const;
  void close();
 
  int download(unsigned block, uint8_t *data, unsigned len, const ErrorStack &err=ErrorStack());
  int upload(unsigned block, uint8_t *data, unsigned len, const ErrorStack &err=ErrorStack());
 
public:
  static QList<USBDeviceDescriptor> detect(uint16_t vid, uint16_t pid);
 
protected:
  int detach(int timeout, const ErrorStack &err=ErrorStack());
  int get_status(const ErrorStack &err=ErrorStack());
  int clear_status(const ErrorStack &err=ErrorStack());
  int get_state(int &pstate, const ErrorStack &err=ErrorStack());
  int abort(const ErrorStack &err=ErrorStack());
  int wait_idle(const ErrorStack &err=ErrorStack());
 
protected:
    libusb_context *_ctx;
    libusb_device_handle *_dev;
    status_t _status;
};
 
 
class DFUSEDevice: public DFUDevice
{
public:
  DFUSEDevice(const USBDeviceDescriptor &descr, const ErrorStack &err=ErrorStack(), uint16_t blocksize=32, QObject *parent=nullptr);
 
  void close();
 
  uint16_t blocksize() const;
 
  bool setAddress(uint32_t address, const ErrorStack &err=ErrorStack());
  bool readBlock(unsigned block, uint8_t *data, const ErrorStack &err=ErrorStack());
  bool writeBlock(unsigned block, const uint8_t *data, const ErrorStack &err=ErrorStack());
  bool erasePage(uint32_t address, const ErrorStack &err=ErrorStack());
  bool eraseAll(const ErrorStack &err=ErrorStack());
  bool releaseReadLock(const ErrorStack &err=ErrorStack());
  bool leaveDFU(const ErrorStack &err=ErrorStack());
 
protected:
  uint16_t _blocksize;
};
 
 
#endif // DFU_LIBUSB_HH