// ****************************************************************************//// CIndigoIO.cpp//// Implementation file for the CIndigoIO 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 "CIndigoIO.h"#include "CIndigoDJ.h"#define INDIGO_IO_OUTPUT_LATENCY_SINGLE_SPEED 44#define INDIGO_IO_OUTPUT_LATENCY_DOUBLE_SPEED 37#define INDIGO_IO_INPUT_LATENCY_SINGLE_SPEED 44#define INDIGO_IO_INPUT_LATENCY_DOUBLE_SPEED 41/****************************************************************************Construction and destruction****************************************************************************///===========================================================================//// Overload new & delete so memory for this object is allocated// from non-paged memory.////===========================================================================PVOID CIndigoIO::operator new( size_t Size ){PVOID pMemory;ECHOSTATUS Status;Status = OsAllocateNonPaged(Size,&pMemory);if ( (ECHOSTATUS_OK != Status) || (NULL == pMemory )){ECHO_DEBUGPRINTF(("CIndigoIO::operator new - memory allocation failed\n"));pMemory = NULL;}else{memset( pMemory, 0, Size );}return pMemory;} // PVOID CIndigoIO::operator new( size_t Size )VOID CIndigoIO::operator delete( PVOID pVoid ){if ( ECHOSTATUS_OK != OsFreeNonPaged( pVoid ) ){ECHO_DEBUGPRINTF(("CIndigoIO::operator delete memory free failed\n"));}} // VOID CIndigoIO::operator delete( PVOID pVoid )//===========================================================================//// Constructor and destructor////===========================================================================CIndigoIO::CIndigoIO( PCOsSupport pOsSupport ): CEchoGalsVmixer( pOsSupport ){ECHO_DEBUGPRINTF( ( "CIndigoIO::CIndigoIO() is born!\n" ) );}CIndigoIO::~CIndigoIO(){ECHO_DEBUGPRINTF( ( "CIndigoIO::~CIndigoIO() is toast!\n" ) );}/****************************************************************************Setup and hardware initialization****************************************************************************///===========================================================================//// Every card has an InitHw method////===========================================================================ECHOSTATUS CIndigoIO::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 CIndigoIODspCommObject( (PDWORD) m_pvSharedMemory,m_pOsSupport );if (NULL == m_pDspCommObject){ECHO_DEBUGPRINTF(("CIndigoIO::InitHw - could not create DSP comm object\n"));return ECHOSTATUS_NO_MEM;}//// Load the DSP//GetDspCommObject()->LoadFirmware();if ( GetDspCommObject()->IsBoardBad() )return ECHOSTATUS_DSP_DEAD;//// Do flags//m_wFlags &= ~ECHOGALS_FLAG_BADBOARD;m_wFlags |= ECHOGALS_ROFLAG_SUPER_INTERLEAVE_OK;//// Must call this here after DSP is init to// init gains and mutes//Status = InitLineLevels();if ( ECHOSTATUS_OK != Status )return Status;//// Get default sample rate from DSP//m_dwSampleRate = GetDspCommObject()->GetSampleRate();ECHO_DEBUGPRINTF( ( "CIndigoIO::InitHw() complete\n" ) );return Status;} // ECHOSTATUS CIndigoIO::InitHw()/****************************************************************************Informational methods****************************************************************************///===========================================================================//// Override GetCapabilities to enumerate unique capabilties for this card////===========================================================================ECHOSTATUS CIndigoIO::GetCapabilities(PECHOGALS_CAPS pCapabilities){ECHOSTATUS Status;Status = GetBaseCapabilities(pCapabilities);if ( ECHOSTATUS_OK != Status )return Status;pCapabilities->dwOutClockTypes = 0;return Status;} // ECHOSTATUS CIndigoIO::GetCapabilities//===========================================================================//// QueryAudioSampleRate is used to find out if this card can handle a// given sample rate.////===========================================================================ECHOSTATUS CIndigoIO::QueryAudioSampleRate(DWORD dwSampleRate){if ( dwSampleRate != 32000 &&dwSampleRate != 44100 &&dwSampleRate != 48000 &&dwSampleRate != 64000 &&dwSampleRate != 88200 &&dwSampleRate != 96000){ECHO_DEBUGPRINTF(("CIndigoIO::QueryAudioSampleRate() - rate %ld invalid\n",dwSampleRate) );return ECHOSTATUS_BAD_FORMAT;}ECHO_DEBUGPRINTF( ( "CIndigoIO::QueryAudioSampleRate()\n" ) );return ECHOSTATUS_OK;} // ECHOSTATUS CIndigoIO::QueryAudioSampleRatevoid CIndigoIO::QuerySampleRateRange(DWORD &dwMinRate,DWORD &dwMaxRate){dwMinRate = 32000;dwMaxRate = 96000;}//===========================================================================//// GetAudioLatency - returns the latency for a single pipe////===========================================================================void CIndigoIO::GetAudioLatency(ECHO_AUDIO_LATENCY *pLatency){DWORD dwLatency;DWORD dwSampleRate;//// The latency depends on the current sample rate//dwSampleRate = GetDspCommObject()->GetSampleRate();if (FALSE == pLatency->wIsInput){if (dwSampleRate < 50000)dwLatency = INDIGO_IO_OUTPUT_LATENCY_SINGLE_SPEED;elsedwLatency = INDIGO_IO_OUTPUT_LATENCY_DOUBLE_SPEED;}else{if (dwSampleRate < 50000)dwLatency = INDIGO_IO_INPUT_LATENCY_SINGLE_SPEED;elsedwLatency = INDIGO_IO_INPUT_LATENCY_DOUBLE_SPEED;}pLatency->dwLatency = dwLatency;} // GetAudioLatency// *** CIndigoIO.cpp ***