1// **************************************************************************** 2// 3// CDarla24.cpp 4// 5// Implementation file for the CDarla24 driver class. 6// Set editor tabs to 3 for your viewing pleasure. 7// 8// ---------------------------------------------------------------------------- 9// 10// This file is part of Echo Digital Audio's generic driver library. 11// Copyright Echo Digital Audio Corporation (c) 1998 - 2005 12// All rights reserved 13// www.echoaudio.com 14// 15// This library is free software; you can redistribute it and/or 16// modify it under the terms of the GNU Lesser General Public 17// License as published by the Free Software Foundation; either 18// version 2.1 of the License, or (at your option) any later version. 19// 20// This library is distributed in the hope that it will be useful, 21// but WITHOUT ANY WARRANTY; without even the implied warranty of 22// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 23// Lesser General Public License for more details. 24// 25// You should have received a copy of the GNU Lesser General Public 26// License along with this library; if not, write to the Free Software 27// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 28// 29// **************************************************************************** 30 31#include "CDarla24.h" 32 33#define DARLA24_ANALOG_OUTPUT_LATENCY 59 34#define DARLA24_ANALOG_INPUT_LATENCY 71 35 36 37/**************************************************************************** 38 39 Construction and destruction 40 41 ****************************************************************************/ 42 43//=========================================================================== 44// 45// Overload new & delete so memory for this object is allocated 46// from non-paged memory. 47// 48//=========================================================================== 49 50PVOID CDarla24::operator new( size_t Size ) 51{ 52 PVOID pMemory; 53 ECHOSTATUS Status; 54 55 Status = OsAllocateNonPaged(Size,&pMemory); 56 57 if ( (ECHOSTATUS_OK != Status) || (NULL == pMemory )) 58 { 59 ECHO_DEBUGPRINTF(("CDarla24::operator new - memory allocation failed\n")); 60 61 pMemory = NULL; 62 } 63 else 64 { 65 memset( pMemory, 0, Size ); 66 } 67 68 return pMemory; 69 70} // PVOID CDarla24::operator new( size_t Size ) 71 72 73VOID CDarla24::operator delete( PVOID pVoid ) 74{ 75 if ( ECHOSTATUS_OK != OsFreeNonPaged( pVoid ) ) 76 { 77 ECHO_DEBUGPRINTF(("CDarla24::operator delete memory free failed\n")); 78 } 79} // VOID CDarla24::operator delete( PVOID pVoid ) 80 81 82//=========================================================================== 83// 84// Constructor and destructor 85// 86//=========================================================================== 87 88CDarla24::CDarla24( PCOsSupport pOsSupport ) 89 : CEchoGals( pOsSupport ) 90{ 91 ECHO_DEBUGPRINTF( ( "CDarla24::CDarla24() is born!\n" ) ); 92 93 m_wAnalogOutputLatency = DARLA24_ANALOG_OUTPUT_LATENCY; 94 m_wAnalogInputLatency = DARLA24_ANALOG_INPUT_LATENCY; 95 96} 97 98CDarla24::~CDarla24() 99{ 100 ECHO_DEBUGPRINTF( ( "CDarla24::~CDarla24() is toast!\n" ) ); 101} 102 103 104 105 106/**************************************************************************** 107 108 Setup and hardware initialization 109 110 ****************************************************************************/ 111 112//=========================================================================== 113// 114// Every card has an InitHw method 115// 116//=========================================================================== 117 118ECHOSTATUS CDarla24::InitHw() 119{ 120 ECHOSTATUS Status; 121 WORD i; 122 123 // 124 // Call the base method 125 // 126 if ( ECHOSTATUS_OK != ( Status = CEchoGals::InitHw() ) ) 127 return Status; 128 129 // 130 // Create the DSP comm object 131 // 132 ECHO_ASSERT(NULL == m_pDspCommObject ); 133 m_pDspCommObject = new CDarla24DspCommObject( (PDWORD) m_pvSharedMemory, 134 m_pOsSupport ); 135 if (NULL == m_pDspCommObject) 136 { 137 ECHO_DEBUGPRINTF(("CDarla24::InitHw - could not create DSP comm object\n")); 138 return ECHOSTATUS_NO_MEM; 139 } 140 141 // 142 // Load the DSP 143 // 144 GetDspCommObject()->LoadFirmware(); 145 if ( GetDspCommObject()->IsBoardBad() ) 146 return ECHOSTATUS_DSP_DEAD; 147 148 // 149 // Clear the "bad board" flag; set the flag to indicate that 150 // Darla24 can handle super-interleave. 151 // 152 m_wFlags &= ~ECHOGALS_FLAG_BADBOARD; 153 m_wFlags |= ECHOGALS_ROFLAG_SUPER_INTERLEAVE_OK; 154 155 // 156 // Must call this here after DSP is init to 157 // init gains 158 // 159 Status = InitLineLevels(); 160 if ( ECHOSTATUS_OK != Status ) 161 return Status; 162 163 // 164 // Set defaults for +4/-10 165 // 166 for (i = 0; i < GetNumBusses(); i++ ) 167 { 168 GetDspCommObject()->SetNominalLevel( i, FALSE ); // FALSE is +4 here 169 } 170 171 // 172 // Get default sample rate from DSP 173 // 174 m_dwSampleRate = GetDspCommObject()->GetSampleRate(); 175 ECHO_DEBUGPRINTF( ( "CDarla24::InitHw()\n" ) ); 176 177 return Status; 178 179} // ECHOSTATUS CDarla24::InitHw() 180 181 182 183 184/**************************************************************************** 185 186 Informational methods 187 188 ****************************************************************************/ 189 190//=========================================================================== 191// 192// Override GetCapabilities to enumerate unique capabilties for this card 193// 194//=========================================================================== 195 196ECHOSTATUS CDarla24::GetCapabilities 197( 198 PECHOGALS_CAPS pCapabilities 199) 200{ 201 ECHOSTATUS Status; 202 WORD i; 203 204 Status = GetBaseCapabilities(pCapabilities); 205 206 // 207 // Add nominal level control to in & out busses 208 // 209 for (i = 0 ; i < GetNumBussesOut(); i++) 210 { 211 pCapabilities->dwBusOutCaps[i] |= ECHOCAPS_NOMINAL_LEVEL; 212 } 213 214 for (i = 0 ; i < GetNumBussesIn(); i++) 215 { 216 pCapabilities->dwBusInCaps[i] |= ECHOCAPS_NOMINAL_LEVEL; 217 } 218 219 if ( ECHOSTATUS_OK != Status ) 220 return Status; 221 222 pCapabilities->dwInClockTypes |= ECHO_CLOCK_BIT_ESYNC; 223 224 return Status; 225 226} // ECHOSTATUS CDarla24::GetCapabilities 227 228 229//=========================================================================== 230// 231// GetInputClockDetect returns a bitmask consisting of all the input 232// clocks currently connected to the hardware; this changes as the user 233// connects and disconnects clock inputs. 234// 235// You should use this information to determine which clocks the user is 236// allowed to select. 237// 238// Darla24 only supports Esync input clock. 239// 240//=========================================================================== 241 242ECHOSTATUS CDarla24::GetInputClockDetect(DWORD &dwClockDetectBits) 243{ 244 if ( NULL == GetDspCommObject() || GetDspCommObject()->IsBoardBad() ) 245 { 246 ECHO_DEBUGPRINTF( ("CDarla24::GetInputClockDetect: DSP Dead!\n") ); 247 return ECHOSTATUS_DSP_DEAD; 248 } 249 250 DWORD dwClocksFromDsp = GetDspCommObject()->GetInputClockDetect(); 251 252 dwClockDetectBits = ECHO_CLOCK_BIT_INTERNAL; 253 254 if (0 != (dwClocksFromDsp & GLDM_CLOCK_DETECT_BIT_ESYNC)) 255 dwClockDetectBits |= ECHO_CLOCK_BIT_ESYNC; 256 257 return ECHOSTATUS_OK; 258 259} // GetInputClockDetect 260 261 262//=========================================================================== 263// 264// QueryAudioSampleRate is used to find out if this card can handle a 265// given sample rate. 266// 267//=========================================================================== 268 269ECHOSTATUS CDarla24::QueryAudioSampleRate 270( 271 DWORD dwSampleRate 272) 273{ 274 if ( dwSampleRate != 8000 && 275 dwSampleRate != 11025 && 276 dwSampleRate != 16000 && 277 dwSampleRate != 22050 && 278 dwSampleRate != 32000 && 279 dwSampleRate != 44100 && 280 dwSampleRate != 48000 && 281 dwSampleRate != 88200 && 282 dwSampleRate != 96000 ) 283 { 284 ECHO_DEBUGPRINTF( 285 ("CDarla24::QueryAudioSampleRate() - rate %ld invalid\n", 286 dwSampleRate) ); 287 return ECHOSTATUS_BAD_FORMAT; 288 } 289 290 ECHO_DEBUGPRINTF( ( "CDarla24::QueryAudioSampleRate()\n" ) ); 291 return ECHOSTATUS_OK; 292 293} // ECHOSTATUS CDarla24::QueryAudioSampleRate 294 295void CDarla24::QuerySampleRateRange(DWORD &dwMinRate,DWORD &dwMaxRate) 296{ 297 dwMinRate = 8000; 298 dwMaxRate = 96000; 299} 300 301 302 303// *** CDarla24.cpp *** 304