/* -*- c++ -*- */

/*

 * Copyright 2007,2008 Free Software Foundation, Inc.

 * 

 * This file is part of GNU Radio

 * 

 * GNU Radio is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3, or (at your option)

 * any later version.

 * 

 * GNU Radio is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 * 

 * You should have received a copy of the GNU General Public License along

 * with this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#ifndef INCLUDED_USRP_USB_INTERFACE_H

#define INCLUDED_USRP_USB_INTERFACE_H

#include <mblock/mblock.h>

#include <vector>

#include "usrp_standard.h"

/*!

 * \brief Implements the low level usb interface to the USRP

 */

class usrp_usb_interface : public mb_mblock

{

 public:

  usrp_standard_tx_sptr d_utx;

  usrp_standard_rx_sptr d_urx;

  boost::shared_ptr<usrp_basic> d_ub_tx;

  boost::shared_ptr<usrp_basic> d_ub_rx;

  mb_port_sptr        d_cs;

  mb_port_sptr  d_rx_cs;

  mb_port_sptr  d_tx_cs;

  long d_ntx_chan;

  long d_nrx_chan;

  bool d_fake_usrp;

  bool d_rx_reading;

  long d_interp_tx;

  long d_decim_rx;

  double d_rf_freq;

  std::string d_rbf;

 public:

  usrp_usb_interface(mb_runtime *rt, const std::string &instance_name, pmt_t user_arg);

  ~usrp_usb_interface();

  void initial_transition();

  void handle_message(mb_message_sptr msg);

  usrp_subdev_spec pick_rx_subdevice();

  usrp_subdev_spec pick_tx_subdevice();

  usrp_subdev_spec pick_subdev(boost::shared_ptr<usrp_basic> d_usrp_basic, std::vector<int> candidates);

 private:

  void handle_cmd_open(pmt_t data);

  void handle_cmd_close(pmt_t data);

  void handle_cmd_write(pmt_t data);

  void handle_cmd_start_reading(pmt_t data);

  void handle_cmd_stop_reading(pmt_t data);

};

#endif /* INCLUDED_USRP_USB_INTERFACE_H */