gn3s_source.h

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/*----------------------------------------------------------------------------------------------*/
//
// FILENAME: gps_source.h
//
// DESCRIPTION: Defines the GPS_Source class.
//
// DEVELOPERS: Gregory W. Heckler (2003-2009)
//
// LICENSE TERMS: Copyright (c) Gregory W. Heckler 2009
//
// This file is part of the GPS Software Defined Radio (GPS-SDR)
//
// The GPS-SDR 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 2 of
// the License, or (at your option) any later version. The GPS-SDR 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.
//
// Note:  Comments within this file follow a syntax that is compatible with
//        DOXYGEN and are utilized for automated document extraction
//
// Reference:
/*----------------------------------------------------------------------------------------------*/

#ifndef GN3S_SOURCE_H_
#define GN3S_SOURCE_H_

#include "gn3s_defines.h"
#include "gn3s.h"

/*! \ingroup CLASSES
 *
 */
class gn3s_Source
{

        private:

                /* Generic variables */
                int source_type;                //!< Source type
                int sample_mode;                //!< Sample mode
                int leftover;                   //!< Leftover bytes for USRP double buffering
                int bwrite;                     //!< Bytes somthing something?
                int ms_count;                   //!< Count the numbers of ms processed

                bool flag_first_read;
                /* Tag overflows */
                time_t rawtime;
                struct tm * timeinfo;

                /* AGC Values */
                int agc_scale;          //!< To do the AGC
                int overflw;                    //!< Overflow counter
                int soverflw;                   //!< Overflow counter

                /* Data buffers */
        unsigned char gbuff[GN3S_SAMPS_5MS*2];  //!< Byte buffer for GN3S
                GN3S_CPX buff[GN3S_SAMPS_5MS];          //!< Base buffer for GN3S

                /* SOURCE_SIGE_GN3S Handles */
                gn3s *gn3s_a;

        private:

                void Open_GN3S();                       //!< Open the SparkFun GN3S Sampler
                void Close_GN3S();                      //!< Close the SparkFun GN3S Sampler
                void Read_GN3S(gn3s_ms_packet *_p,int n_samples);       //!< Read from the SparkFun GN3S Sampler

        public:

                gn3s_Source();  //!< Create the GPS source with the proper hardware type
                ~gn3s_Source();                                 //!< Kill the object
                void Read(gn3s_ms_packet *_p,int n_samples);            //!< Read in a single ms of data
                int getScale(){return(agc_scale);}
                int getOvrflw(){return(overflw);}

};

#endif /* GN3S_SOURCE_H_ */