root/src/add-ons/kernel/drivers/audio/echo/generic/CMona.cpp
// ****************************************************************************
//
//              CMona.cpp
//
//              Implementation file for the CMona driver class.
//              Set editor tabs to 3 for your viewing pleasure.
//
// ----------------------------------------------------------------------------
//
// 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 "CMona.h"

#define MONA_ANALOG_OUTPUT_LATENCY              59
#define MONA_ANALOG_INPUT_LATENCY               71
#define MONA_DIGITAL_OUTPUT_LATENCY             32
#define MONA_DIGITAL_INPUT_LATENCY              32



/****************************************************************************

        Construction and destruction

 ****************************************************************************/

//===========================================================================
//
// Overload new & delete so memory for this object is allocated
//      from non-paged memory.
//
//===========================================================================

PVOID CMona::operator new( size_t Size )
{
        PVOID           pMemory;
        ECHOSTATUS      Status;
        
        Status = OsAllocateNonPaged(Size,&pMemory);
        
        if ( (ECHOSTATUS_OK != Status) || (NULL == pMemory ))
        {
                ECHO_DEBUGPRINTF(("CMona::operator new - memory allocation failed\n"));

                pMemory = NULL;
        }
        else
        {
                memset( pMemory, 0, Size );
        }

        return pMemory;

}       // PVOID CMona::operator new( size_t Size )


VOID  CMona::operator delete( PVOID pVoid )
{
        if ( ECHOSTATUS_OK != OsFreeNonPaged( pVoid ) )
        {
                ECHO_DEBUGPRINTF(("CMona::operator delete memory free failed\n"));
        }
}       // VOID CMona::operator delete( PVOID pVoid )


//===========================================================================
//
// Constructor and destructor
//
//===========================================================================

CMona::CMona( PCOsSupport pOsSupport )
                : CEchoGals( pOsSupport )
{
        ECHO_DEBUGPRINTF( ( "CMona::CMona() is born!\n" ) );

        m_wAnalogOutputLatency = MONA_ANALOG_OUTPUT_LATENCY;
        m_wAnalogInputLatency = MONA_ANALOG_INPUT_LATENCY;
        m_wDigitalOutputLatency = MONA_DIGITAL_OUTPUT_LATENCY;
        m_wDigitalInputLatency = MONA_DIGITAL_INPUT_LATENCY;
}

CMona::~CMona()
{
        ECHO_DEBUGPRINTF( ( "CMona::~CMona() is toast!\n" ) );
}




/****************************************************************************

        Setup and hardware initialization

 ****************************************************************************/

//===========================================================================
//
// Every card has an InitHw method
//
//===========================================================================

ECHOSTATUS CMona::InitHw()
{
        ECHOSTATUS      Status;

        //
        // Call the base method
        //
        if ( ECHOSTATUS_OK != ( Status = CEchoGals::InitHw() ) )
                return Status;

        //
        // Create the DSP comm object
        //
        ECHO_ASSERT(NULL == m_pDspCommObject );
        m_pDspCommObject = new CMonaDspCommObject( (PDWORD) m_pvSharedMemory,
                                                                                                                         m_pOsSupport );
        if (NULL == m_pDspCommObject)
        {
                ECHO_DEBUGPRINTF(("CMona::InitHw - could not create DSP comm object\n"));
                return ECHOSTATUS_NO_MEM;
        }

        //
        // Load the DSP, the PCI card ASIC, and the external box ASIC
        //
        GetDspCommObject()->LoadFirmware();
        if ( GetDspCommObject()->IsBoardBad() )
                return ECHOSTATUS_DSP_DEAD;
        
        //
        // Clear the "bad board" flag; set the flags to indicate that
        // Mona can handle super-interleave and supports the digital 
        // input auto-mute.
        //
        m_wFlags &= ~ECHOGALS_FLAG_BADBOARD;
        m_wFlags |= ECHOGALS_ROFLAG_SUPER_INTERLEAVE_OK |
                                ECHOGALS_ROFLAG_DIGITAL_IN_AUTOMUTE;
        
        //
        //      Must call this here after DSP is init to 
        //      init gains and mutes
        //
        Status = InitLineLevels();
        if ( ECHOSTATUS_OK != Status )
                return Status;
                
        //
        // Set the digital mode to S/PDIF RCA
        //
        SetDigitalMode( DIGITAL_MODE_SPDIF_RCA );

        //
        // Set the S/PDIF output format to "professional"
        //
        SetProfessionalSpdif( TRUE );

        //
        //      Get default sample rate from DSP
        //
        m_dwSampleRate = GetDspCommObject()->GetSampleRate();

        ECHO_DEBUGPRINTF( ( "CMona::InitHw()\n" ) );
        return Status;

}       // ECHOSTATUS CMona::InitHw()




/****************************************************************************

        Informational methods

 ****************************************************************************/

//===========================================================================
//
// Override GetCapabilities to enumerate unique capabilties for this card
//
//===========================================================================

ECHOSTATUS CMona::GetCapabilities
(
        PECHOGALS_CAPS  pCapabilities
)
{
        ECHOSTATUS      Status;

        Status = GetBaseCapabilities(pCapabilities);
        if ( ECHOSTATUS_OK != Status )
                return Status;

        pCapabilities->dwInClockTypes |= ECHO_CLOCK_BIT_WORD            |
                                                                                                ECHO_CLOCK_BIT_SPDIF            |
                                                                                                ECHO_CLOCK_BIT_ADAT;

        return Status;

}       // ECHOSTATUS CMona::GetCapabilities


//===========================================================================
//
// QueryAudioSampleRate is used to find out if this card can handle a 
// given sample rate.
//
//===========================================================================

ECHOSTATUS CMona::QueryAudioSampleRate
(
        DWORD           dwSampleRate
)
{
        if ( dwSampleRate !=  8000 &&
                  dwSampleRate != 11025 &&
                  dwSampleRate != 16000 &&
                  dwSampleRate != 22050 &&
                  dwSampleRate != 32000 &&
                  dwSampleRate != 44100 &&
                  dwSampleRate != 48000 &&
                  dwSampleRate != 88200 &&
                  dwSampleRate != 96000 )
        {
                ECHO_DEBUGPRINTF(
                        ("CMona::QueryAudioSampleRate() - rate %ld invalid\n",dwSampleRate) );
                return ECHOSTATUS_BAD_FORMAT;
        }
        if ( dwSampleRate >= 88200 && DIGITAL_MODE_ADAT == GetDigitalMode() )
        {
                ECHO_DEBUGPRINTF(
                        ("CMona::QueryAudioSampleRate() Sample rate cannot be "
                         "set to 88,200 Hz or 96,000 Hz in ADAT mode\n") );
                return ECHOSTATUS_BAD_FORMAT;
        }

        ECHO_DEBUGPRINTF( ( "CMona::QueryAudioSampleRate()\n" ) );
        return ECHOSTATUS_OK;
}       // ECHOSTATUS CMona::QueryAudioSampleRate


void CMona::QuerySampleRateRange(DWORD &dwMinRate,DWORD &dwMaxRate)
{
        dwMinRate = 8000;
        dwMaxRate = 96000;
}


//===========================================================================
//
// GetInputClockDetect returns a bitmask consisting of all the input
// clocks currently connected to the hardware; this changes as the user
// connects and disconnects clock inputs.  
//
// You should use this information to determine which clocks the user is
// allowed to select.
//
// Mona supports S/PDIF, word, and ADAT input clocks.
//
//===========================================================================

ECHOSTATUS CMona::GetInputClockDetect(DWORD &dwClockDetectBits)
{
        //ECHO_DEBUGPRINTF(("CMona::GetInputClockDetect\n"));

        if ( NULL == GetDspCommObject() || GetDspCommObject()->IsBoardBad() )
        {
                ECHO_DEBUGPRINTF( ("CMona::GetInputClockDetect: DSP Dead!\n") );
                return ECHOSTATUS_DSP_DEAD;
        }
                                         
        //
        // Map the DSP clock detect bits to the generic driver clock detect bits
        //      
        DWORD dwClocksFromDsp = GetDspCommObject()->GetInputClockDetect();      

        dwClockDetectBits = ECHO_CLOCK_BIT_INTERNAL;    
        
        if (0 != (dwClocksFromDsp & GML_CLOCK_DETECT_BIT_SPDIF))
                dwClockDetectBits |= ECHO_CLOCK_BIT_SPDIF;
                
        if (0 != (dwClocksFromDsp & GML_CLOCK_DETECT_BIT_ADAT))
                dwClockDetectBits |= ECHO_CLOCK_BIT_ADAT;
                
        if (0 != (dwClocksFromDsp & GML_CLOCK_DETECT_BIT_WORD))
                dwClockDetectBits |= ECHO_CLOCK_BIT_WORD;

        return ECHOSTATUS_OK;
        
}       // GetInputClockDetect


// *** CMona.cpp ***