libcm is a C development framework with an emphasis on audio signal processing applications.
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  1. #ifndef cmMsgProtocol_h
  2. #define cmMsgProtocol_h
  3. #include "cmAudioSysMsg.h"
  4. #ifdef __cplusplus
  5. extern "C" {
  6. #endif
  7. #define cmAudDspSys_FILENAME "aud_dsp.js"
  8. // UI seletor id's used in the cmDspUiHdr_t selId field
  9. enum
  10. {
  11. kPrintDuiId, // ui<--eng print the value to the console
  12. kSliderDuiId, // ui<--eng create a slider control
  13. kButtonDuiId, // ui<--eng create button control
  14. kCheckDuiId, // ui<--eng create a check box control
  15. kLabelDuiId, // ui<--end create a label control
  16. kTimeLineDuiId,// ui<--end create a time-line control
  17. kScoreDuiId, // ui<--end create a score control
  18. kNumberDuiId, // ui<--eng create a number box
  19. kTextDuiId, // ui<--eng create a text entry control
  20. kFnameDuiId, // ui<--eng create a file/directory picker control
  21. kMsgListDuiId, // ui<--eng create a msg list control
  22. kMeterDuiId, // ui<--eng create a meter display
  23. kValueDuiId, // ui<->eng a control changed values
  24. kColumnDuiId, // ui<--eng start a new column
  25. kHBorderDuiId, // ui<--eng insert a vertical border
  26. kPageDuiId, // ui<--eng insert a new control page
  27. kAudioSysCfgDuiId, // ui<--audio system cfg label
  28. kSubSysCntDuiId, // ui<--eng audio sub-system count
  29. kDeviceDuiId, // ui<--eng device label
  30. kProgramDuiId, // ui<--eng program label
  31. // The following selId's are used by cmAudDsp to indicate various commands.
  32. kSetAudioCfgDuiId, // 1) select an audio system setup
  33. kSetAudioDevDuiId, // 2) (optional) set an audio device on an audio sub-system
  34. kSetSampleRateDuiId, // 3) (optional) set the sample rate of an audio sub-system
  35. kSetPgmDuiId, // 4) select a program
  36. kEnableDuiId, // 5) enable/disable the audio system (also resets the DSP system)
  37. kSyncDuiId, // 6) sent by cmAudDsp to client to indicate sync success or failure.
  38. kSetNotifyEnableDuiId, // enable/disable periodic status notification from the audio system.
  39. kClientMsgPollDuiId, // Periodic check for and deliver messages waiting in the audio system for delivery to the client.
  40. kSendMsgDuiId, // forward msg to the audio system
  41. kDevReportDuiId, // print a device report
  42. kPrintPgmDuiId, // write the currently loaded pgm as a JSON file
  43. kRightAlignDuiId = 0, // label alignment id used by kLabelDuiId
  44. kLeftAlignDuiId,
  45. kCenterAlignDuiId
  46. };
  47. enum
  48. {
  49. kDuplexDuiFl = 0x01
  50. };
  51. // Header record for all messages between the host and the DSP controllers.
  52. typedef struct
  53. {
  54. unsigned asSubIdx; // the audio sub-system this UI belongs to
  55. unsigned uiId; // msg type kXXXAsId
  56. unsigned selId; // action to perform see above
  57. unsigned flags; //
  58. unsigned instId; // DSP instance id
  59. unsigned instVarId; // DSP instance var id
  60. // The cmDspValue_t field must come last in the structure in
  61. // order for the cmDsvSerialize() to work in cmDspUI.c:_cmDspUiMsg().
  62. cmDspValue_t value; // Data value associated with this msg.
  63. } cmDspUiHdr_t;
  64. // cmDspNetMsg_t sub-selector id's
  65. enum {
  66. kNetHelloSelAsId, // node->node awake msg
  67. kNetDstIdReqSelAsId, // src->dst request a dst id
  68. kNetDstIdReqDoneAsId, // src->dst all requests have been sent
  69. kNetDstIdSelAsId, // dst->src provide dst id
  70. kNetDoneSelAsId, // node->node sync done
  71. kNetErrSelAsId, // node->node sync error
  72. kNetEvtSelAsId // src->dst send cmDspEvnt_t
  73. };
  74. // Message Layout [ cmDspNetMsg_t dstInstLabel[] dstVarLabel[] ]
  75. typedef struct
  76. {
  77. unsigned asSubIdx;
  78. unsigned selId; // kNetSyncSelAsId
  79. unsigned subSelId; // see above kNetXXXSelAsId
  80. unsigned srcId;
  81. unsigned dstId;
  82. cmDspValue_t value;
  83. // char dstInstLabel[] - with kNetSyncSelAsId only
  84. // char dstVarLabel[] - with kNetSyncSelAsId only
  85. } cmDspNetMsg_t;
  86. enum
  87. {
  88. kOkMsgRC = cmOkRC,
  89. kSerializeFailMsgRC,
  90. kSendFailMsgRC,
  91. kDecodeFailMsgRC
  92. };
  93. typedef cmRC_t cmMsgRC_t;
  94. typedef cmMsgRC_t (*cmMsgSendFuncPtr_t)(void* cbDataPtr, unsigned msgByteCnt, const void* msg );
  95. cmMsgRC_t cmMsgSend(
  96. cmErr_t* err,
  97. unsigned asSubIdx,
  98. unsigned msgTypeId,
  99. unsigned selId,
  100. unsigned flags,
  101. unsigned instId,
  102. unsigned instVarId,
  103. const cmDspValue_t* valPtr,
  104. cmMsgSendFuncPtr_t sendFunc,
  105. void* cbDataPtr );
  106. cmMsgRC_t cmMsgPeekAsSubIndex( const void* msgArray[], unsigned msgByteCntArray[], unsigned segCnt, unsigned* retValPtr );
  107. cmMsgRC_t cmMsgPeekMsgTypeId( const void* msgArray[], unsigned msgByteCntArray[], unsigned segCnt, unsigned* retValPtr );
  108. cmMsgRC_t cmMsgPeekSelId( const void* msgArray[], unsigned msgByteCntArray[], unsigned segCnt, unsigned* retValPtr );
  109. cmMsgRC_t cmMsgPeekFlags( const void* msgArray[], unsigned msgByteCntArray[], unsigned segCnt, unsigned* retValPtr );
  110. cmMsgRC_t cmMsgPeekInstId( const void* msgArray[], unsigned msgByteCntArray[], unsigned segCnt, unsigned* retValPtr );
  111. cmMsgRC_t cmMsgPeekInstVarId( const void* msgArray[], unsigned msgByteCntArray[], unsigned segCnt, unsigned* retValPtr );
  112. #ifdef __cplusplus
  113. }
  114. #endif
  115. #endif