src/add-ons/kernel/drivers/audio/echo/generic/CLayla24DspCommObject.h

   1 // ****************************************************************************
   2 //
   3 //              CLayla24DspCommObject.H
   4 //
   5 //              Include file for EchoGals generic driver Layla24 DSP interface class.
   6 //
   7 // ----------------------------------------------------------------------------
   8 //
   9 // This file is part of Echo Digital Audio's generic driver library.
  10 // Copyright Echo Digital Audio Corporation (c) 1998 - 2005
  11 // All rights reserved
  12 // www.echoaudio.com
  13 //
  14 // This library is free software; you can redistribute it and/or
  15 // modify it under the terms of the GNU Lesser General Public
  16 // License as published by the Free Software Foundation; either
  17 // version 2.1 of the License, or (at your option) any later version.
  18 //
  19 // This library is distributed in the hope that it will be useful,
  20 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22 // Lesser General Public License for more details.
  23 //
  24 // You should have received a copy of the GNU Lesser General Public
  25 // License along with this library; if not, write to the Free Software
  26 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  27 //
  28 // ****************************************************************************
  29
  30 #ifndef _LAYLA24DSPCOMMOBJECT_
  31 #define _LAYLA24DSPCOMMOBJECT_
  32
  33 #include "CGMLDspCommObject.h"
  34
  35 class CLayla24DspCommObject : public CGMLDspCommObject
  36 {
  37 protected:
  38
  39         DWORD   m_dwSampleRate;
  40
  41 public:
  42         //
  43         //      Construction/destruction
  44         //
  45         CLayla24DspCommObject( PDWORD pdwRegBase, PCOsSupport pOsSupport );
  46         virtual ~CLayla24DspCommObject();
  47
  48         //
  49         //      Set the DSP sample rate.
  50         //      Return rate that was set, -1 if error
  51         //
  52         virtual DWORD SetSampleRate( DWORD dwNewSampleRate );
  53         //
  54         //      Send current setting to DSP & return what it is
  55         //
  56         virtual DWORD SetSampleRate()
  57                 { return( SetSampleRate( GetSampleRate() ) ); }
  58
  59         //
  60         // Get the current sample rate
  61         //
  62         virtual DWORD GetSampleRate()
  63         {
  64                 return m_dwSampleRate;
  65         }
  66
  67         //
  68         //      Set digital mode
  69         //
  70         virtual ECHOSTATUS SetDigitalMode
  71         (
  72                 BYTE    byNewMode
  73         );
  74
  75         //
  76         //      Card information
  77         //
  78         virtual WORD GetCardType()
  79                 { return( LAYLA24 ); }
  80
  81
  82 protected:
  83
  84         virtual BOOL LoadASIC();
  85
  86         //
  87         //      Switch the external ASIC if not already loaded.
  88         //      Mute monitors during this operation
  89         //
  90         BOOL SwitchAsic
  91         (
  92                 BYTE *  pbyAsicNeeded,
  93                 DWORD           dwAsicSize
  94         );
  95
  96         //
  97         //      Set input clock
  98         //
  99         virtual ECHOSTATUS SetInputClock(WORD wClock);
 100
 101         BYTE *  m_pbyAsic;                                      // Current ASIC code
 102
 103 };              // class CLayla24DspCommObject
 104
 105 typedef CLayla24DspCommObject * PCLayla24DspCommObject;
 106
 107 #endif
 108
 109 // **** Layla2424DspCommObject.h ****