ComediIO.hh

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/*

    ComediIO
    Copyright (C) 2002 Jussi Laako
    
    This program 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.

    This program 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/


#include <sys/types.h>
#include <comedilib.h>

#include <Alloc.hh>


#ifndef COMEDIIO_HH
    #define COMEDIIO_HH


    class clComediIO
    {
            int iInSubDev;
            char *cpErrorMsg;
            comedi_t *comediDev;
            lsampl_t iInMaxValue;
            clAlloc InScanList;
            clAlloc InBuf;
            void SetError ();
            bool PcmStart (int, double *, int, unsigned int *, unsigned int, 
                bool, bool);
            long PcmRead (sampl_t **, long);
        public:
            enum
            {
                VERS_MASK_MAJ = 0x00ff0000,
                VERS_MASK_MIN = 0x0000ff00,
                VERS_MASK_PL = 0x000000ff
            };
            enum
            {
                VERS_SHIFT_MAJ = 16,
                VERS_SHIFT_MIN = 8,
                VERS_SHIFT_PL = 0
            };

            clComediIO ();
            ~clComediIO ();
            bool Open (const char *);
            bool Close ();
            int GetSubdeviceCount ();
            int GetVersionCode ();
            const char *GetDriverName ();
            const char *GetBoardName ();
            const char *GetErrorMsg ()
                { return cpErrorMsg; }
            /* --- Subdevice specific --- */
            bool PcmInOpen ();
            bool PcmInClose ();
            int PcmInGetChannelCount ();
            bool PcmInStart (double *, int, double, bool = true, bool = false);
            bool PcmInStop ();
            long PcmInRead (float *, long);
            long PcmInRead (double *, long);
            bool PcmBufferSizeSet (unsigned int);
            int PcmBufferSizeGet ();
            size_t PcmGetIntSampleSize ()
                { return sizeof(sampl_t); }
    };


#endif

---