cwIo.h/cpp/test : Added initial audio implemetation.

cwIo.cpp

@@ -15,6 +15,10 @@
 #include "cwSerialPort.h"
 #include "cwSerialPortSrv.h"
 
+#include "cwAudioDevice.h"
+#include "cwAudioBuf.h"
+#include "cwAudioDeviceAlsa.h"
+
 
 namespace cw
 {
@@ -42,6 +46,10 @@ namespace cw
       unsigned               serialN;
       
       midi::device::handle_t midiH;
+
+      audio::device::handle_t       audioH;
+      audio::device::alsa::handle_t alsaH;
+      
     } io_t;
   
 
@@ -215,6 +223,59 @@ namespace cw
       
       return rc;
     }
+
+    void _audioDeviceCallback( void* cbArg, audio::device::audioPacket_t* inPktArray, unsigned inPktCnt, audio::device::audioPacket_t* outPktArray, unsigned outPktCnt )
+    {
+    }
+
+    rc_t _audioDeviceConfig( io_t* p, const object_t* c )
+    {
+      rc_t rc = kOkRC;
+      
+      
+      
+      return rc;
+    }
+
+
+    rc_t _audioDeviceCreate( io_t* p, const object_t*& c )
+    {      
+      rc_t                     rc       = kOkRC;
+      audio::device::driver_t* audioDrv = nullptr;
+
+      // initialize the audio device interface  
+      if((rc = audio::device::create(p->audioH)) != kOkRC )
+      {
+        cwLogInfo("Initialize failed.");
+        goto errLabel;
+      }
+
+      // initialize the ALSA device driver interface
+      if((rc = audio::device::alsa::create(p->alsaH, audioDrv )) != kOkRC )
+      {
+        cwLogInfo("ALSA initialize failed.");
+        goto errLabel;
+      }
+
+      // register the ALSA device driver with the audio interface
+      if((rc = audio::device::registerDriver( p->audioH, audioDrv )) != kOkRC )
+      {
+        cwLogInfo("ALSA driver registration failed.");
+        goto errLabel;
+      }
+
+      // 
+      if((rc = _audioDeviceConfig( p, c )) != kOkRC )
+      {
+        cwLogInfo("Audio device configuration failed.");
+        goto errLabel;
+      }
+
+
+    errLabel:
+      return rc;
+    }
+
   }
 }
 
@@ -254,6 +315,10 @@ cw::rc_t cw::io::create( handle_t& h, const char* cfgStr, cbFunc_t cbFunc, void*
   if((rc = _midiPortCreate(p,o)) != kOkRC )
     goto errLabel;
 
+  // create the Audio device interface
+  if((rc = _audioDeviceCreate(p,o)) != kOkRC )
+    goto errLabel;
+  
   // create the the thread
   if((rc = thread::create( p->threadH, _mainThreadFunc, p)) != kOkRC )
     goto errLabel;

cwIo.h

@@ -43,7 +43,7 @@ namespace cw
       
     rc_t create(
       handle_t&   h,
-      const char* cfgStr,
+      const char* cfgStr,      // configuration information as text
       cbFunc_t    cbFunc,
       void*       cbArg,
       const char* cfgLabel="io" );
@@ -66,6 +66,10 @@ namespace cw
     unsigned    midiDevicePortIndex( handle_t h, unsigned devIdx, bool inputFl, const char* portName );    
     rc_t        midiDeviceSend(      handle_t h, unsigned devIdx, unsigned portIdx, midi::byte_t status, midi::byte_t d0, midi::byte_t d1 );
 
+    
+
+    
+    
   }
 }
 

cwIoTest.cpp

@@ -38,6 +38,15 @@ cw::rc_t cw::io::test()
               midi: {
                  parserBufByteN: 1024,
               }
+          
+              audio: [
+                {
+                  name:   "default",
+                  device: "HDA Intel PCH CS4208 Analog",
+                  srate:  48000,
+                  framesPerCycle: 64                  
+                }
+              ]
             }
       })";