src/add-ons/kernel/drivers/audio/echo/generic/CGdDspCommObject.h

   1 // ****************************************************************************
   2 //
   3 //              CGdDspCommObject.H
   4 //
   5 //              Darla20 and Gina20 are very similar; this class is used for both.
   6 //              CGinaDspCommObject and CDarlaDspCommObject dervie from this class, in
   7 //              turn.
   8 //
   9 // ----------------------------------------------------------------------------
  10 //
  11 // ----------------------------------------------------------------------------
  12 //
  13 // This file is part of Echo Digital Audio's generic driver library.
  14 // Copyright Echo Digital Audio Corporation (c) 1998 - 2005
  15 // All rights reserved
  16 // www.echoaudio.com
  17 //
  18 // This library is free software; you can redistribute it and/or
  19 // modify it under the terms of the GNU Lesser General Public
  20 // License as published by the Free Software Foundation; either
  21 // version 2.1 of the License, or (at your option) any later version.
  22 //
  23 // This library is distributed in the hope that it will be useful,
  24 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  25 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  26 // Lesser General Public License for more details.
  27 //
  28 // You should have received a copy of the GNU Lesser General Public
  29 // License along with this library; if not, write to the Free Software
  30 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  31 //
  32 // ****************************************************************************
  33
  34 #ifndef _GDDSPCOMMOBJECT_
  35 #define _GDDSPCOMMOBJECT_
  36
  37 #include "CDspCommObject.h"
  38
  39
  40 class CGdDspCommObject : public CDspCommObject
  41 {
  42 public:
  43         //
  44         //      Construction/destruction
  45         //
  46         CGdDspCommObject( PDWORD pdwRegBase, PCOsSupport pOsSupport  );
  47         virtual ~CGdDspCommObject();
  48
  49         //
  50         //      Set the DSP sample rate.
  51         //      Return rate that was set, -1 if error
  52         //
  53         virtual DWORD SetSampleRate( DWORD dwNewSampleRate );
  54         //
  55         //      Send current setting to DSP & return what it is
  56         //
  57         virtual DWORD SetSampleRate()
  58         { return SetSampleRate( GetSampleRate() ); }
  59
  60         //
  61         // Put the card to sleep
  62         //
  63         virtual ECHOSTATUS GoComatose();
  64
  65 protected:
  66         BYTE    m_byGDCurrentSpdifStatus;
  67         BYTE    m_byGDCurrentClockState;
  68
  69         //
  70         //      Called after load firmware to restore old gains, meters on, monitors, etc.
  71         //      No error checking is done here.
  72         //
  73         virtual void RestoreDspSettings();
  74
  75         // SelectGinaDarlaSpdifStatus
  76         BYTE SelectGinaDarlaSpdifStatus( DWORD dwNewSampleRate );
  77
  78 };              // class CGdDspCommObject
  79
  80 typedef CGdDspCommObject * PCGdDspCommObject;
  81
  82 #endif
  83
  84 // **** GdDspCommObject.h ****