libcm is a C development framework with an emphasis on audio signal processing applications.
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cmSerialPort.h 2.5KB

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  1. #ifndef cmSerialPort_h
  2. #define cmSerialPort_h
  3. #ifdef __cplusplus
  4. extern "C" {
  5. #endif
  6. typedef unsigned cmSeRC_t;
  7. enum
  8. {
  9. kOkSeRC = cmOkRC,
  10. kFlushFailSeRC,
  11. kSetAttrFailSeRC,
  12. kCloseFailSeRC,
  13. kOpenFailSeRC,
  14. kResourceNotAvailableSeRC,
  15. kGetAttrFailSeRC,
  16. kWriteFailSeRC,
  17. kReadFailSeRC,
  18. kTimeOutSeRC,
  19. kThreadErrSeRC
  20. };
  21. enum
  22. {
  23. kDataBits5SeFl = 0x0001,
  24. kDataBits6SeFl = 0x0002,
  25. kDataBits7SeFl = 0x0004,
  26. kDataBits8SeFl = 0x0008,
  27. kDataBitsSeMask = 0x000f,
  28. k1StopBitSeFl = 0x0010,
  29. k2StopBitSeFl = 0x0020,
  30. kEvenParitySeFl = 0x0040,
  31. kOddParitySeFl = 0x0080,
  32. kNoParitySeFl = 0x0000,
  33. kDefaultCfgSeFlags = kDataBits8SeFl | k1StopBitSeFl | kNoParitySeFl
  34. };
  35. typedef void (*cmSeCallbackFunc_t)( void* cbArg, const void* byteA, unsigned byteN );
  36. typedef cmHandle_t cmSeH_t;
  37. cmSeH_t cmSeCreate( cmCtx_t* ctx, cmSeH_t* hp, const char* device, unsigned baudRate, unsigned cfgFlags, cmSeCallbackFunc_t cbFunc, void* cbArg, unsigned pollPeriodMs );
  38. cmSeRC_t cmSeDestroy(cmSeH_t* hp );
  39. cmSeRC_t cmSeSetCallback( cmSeH_t h, cmSeCallbackFunc_t cbFunc, void* cbArg );
  40. cmSeRC_t cmSeStart( cmSeH_t h );
  41. bool cmSeIsOpen( cmSeH_t h);
  42. cmSeRC_t cmSeSend( cmSeH_t h, const void* byteA, unsigned byteN );
  43. // Make callback to listener with result of read - Non-blocking
  44. cmSeRC_t cmSeReceiveCbNb( cmSeH_t h, unsigned* readN_Ref);
  45. // Make callback to listener with result of read - Block for up to timeOutMs.
  46. cmSeRC_t cmSeReceiveCbTimeOut( cmSeH_t h, unsigned timeOutMs, unsigned* readN_Ref);
  47. // Return result of read in buf[bufByteN] - Non-blocking.
  48. cmSeRC_t cmSeReceiveNb( cmSeH_t h, void* buf, unsigned bufByteN, unsigned* readN_Ref);
  49. // Return result of read in buf[bufByteN] - Block for up to timeOutMs.
  50. cmSeRC_t cmSeReceive( cmSeH_t h, void* buf, unsigned bufByteN, unsigned timeOutMs, unsigned* readN_Ref );
  51. const char* cmSeDevice( cmSeH_t h);
  52. // Get the baud rate and cfgFlags used to initialize the port
  53. unsigned cmSeBaudRate( cmSeH_t h);
  54. unsigned cmSeCfgFlags( cmSeH_t h);
  55. // Get the baud rate and cfg flags by reading the device.
  56. // Note the the returned buad rate is a system id rather than the actual baud rate,
  57. // however the cfgFlags are converted to the same kXXXFl defined in this class.
  58. unsigned cmSeReadInBaudRate( cmSeH_t h );
  59. unsigned cmSeReadOutBaudRate( cmSeH_t h);
  60. unsigned cmSeReadCfgFlags( cmSeH_t h);
  61. cmSeRC_t cmSePortTest(cmCtx_t* ctx);
  62. #ifdef __cplusplus
  63. }
  64. #endif
  65. #endif