// ****************************************************************************
//
//      CIndigoDspCommObject.cpp
//
//              Implementation file for EchoGals generic driver Indigo DSP
//              interface class.
//
// ----------------------------------------------------------------------------
//
// This file is part of Echo Digital Audio's generic driver library.
// Copyright Echo Digital Audio Corporation (c) 1998 - 2005
// All rights reserved
// www.echoaudio.com
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// ****************************************************************************

#include "CEchoGals.h"
#include "CIndigoDspCommObject.h"

#ifdef ECHO_WDM
#pragma optimize("",off)
#endif
#include "IndigoDSP.c"


//
//      Construction/destruction
//
CIndigoDspCommObject::CIndigoDspCommObject
(
        PDWORD          pdwRegBase,                             // Virtual ptr to DSP registers
        PCOsSupport     pOsSupport
) : CDspCommObjectVmixer( pdwRegBase, pOsSupport )
{
        strcpy( m_szCardName, "Indigo" );
        m_pdwDspRegBase = pdwRegBase;           // Virtual addr DSP's register base

        m_wNumPipesOut = 8;
        m_wNumPipesIn = 2;
        m_wNumBussesOut = 2;
        m_wNumBussesIn = m_wNumPipesIn;
        m_wFirstDigitalBusOut = m_wNumBussesOut;
        m_wFirstDigitalBusIn = m_wNumBussesIn;

        m_fHasVmixer = TRUE;
                
        m_wNumMidiOut = 0;                                      // # MIDI out channels
        m_wNumMidiIn = 0;                                               // # MIDI in  channels

        m_pDspCommPage->dwSampleRate = SWAP( (DWORD) 48000 );

        m_bHasASIC = FALSE;

        m_pwDspCodeToLoad = pwIndigoDSP;
        
        m_byDigitalMode = DIGITAL_MODE_NONE;
        
        //
        // Since this card has no ASIC, mark it as loaded so everything works OK
        //
        m_bASICLoaded = TRUE;
        
}       // CIndigoDspCommObject::CIndigoDspCommObject( DWORD dwPhysRegBase )


CIndigoDspCommObject::~CIndigoDspCommObject()
{
}       // CIndigoDspCommObject::~CIndigoDspCommObject()


//
//      Save new clock settings and send to DSP.
//
ECHOSTATUS CIndigoDspCommObject::SetInputClock(WORD wClock)
{

        ECHO_DEBUGPRINTF( ("CIndigoDspCommObject::SetInputClock:\n") );
        return ECHOSTATUS_CLOCK_NOT_SUPPORTED;

}       // ECHOSTATUS CIndigoDspCommObject::SetInputClock


//===========================================================================
//
// SetSampleRate
// 
// Set the audio sample rate for Indigo
//
//===========================================================================

DWORD CIndigoDspCommObject::SetSampleRate( DWORD dwNewSampleRate )
{
        //
        // Set the sample rate
        //
        DWORD dwControlReg = MIA_48000;

        switch ( dwNewSampleRate )
        {
                case 96000 :
                        dwControlReg = MIA_96000;
                        break;
                        
                case 88200 :
                        dwControlReg = MIA_88200;
                        break;
                        
                case 44100 : 
                        dwControlReg = MIA_44100;
                        break;
                        
                case 32000 :
                        dwControlReg = MIA_32000;
                        break;
        }
        
        //
        // Set the control register if it has changed
        //
        if (dwControlReg != GetControlRegister())
        {
                if ( !WaitForHandshake() )
                        return 0xffffffff;
                
                //
                // Set the values in the comm page; the dwSampleRate
                // field isn't used by the DSP, but is read by the call
                // to GetSampleRate below
                //              
                m_pDspCommPage->dwSampleRate = SWAP( dwNewSampleRate );
                SetControlRegister( dwControlReg );

                //
                //      Poke the DSP
                // 
                ClearHandshake();
                SendVector( DSP_VC_UPDATE_CLOCKS );
        }

        return GetSampleRate();
        
} // DWORD CIndigoDspCommObject::SetSampleRate( DWORD dwNewSampleRate )

// **** CIndigoDspCommObject.cpp ****