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Waveout.c
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//
// Passes audio samples to the sound interface
// Windows uses WaveOut
// Nucleo uses DMA
// Linux will use ALSA
// This is the Windows Version
#define _CRT_SECURE_NO_DEPRECATE
#define _USE_32BIT_TIME_T
#include <windows.h>
#include <mmsystem.h>
#ifdef USE_DIREWOLF
#include "direwolf/fsk_demod_state.h"
#include "direwolf/demod_afsk.h"
#endif
#pragma comment(lib, "winmm.lib")
void printtick(char * msg);
void PollReceivedSamples();
HANDLE OpenCOMPort(VOID * pPort, int speed, BOOL SetDTR, BOOL SetRTS, BOOL Quiet, int Stopbits);
VOID COMSetDTR(HANDLE fd);
VOID COMClearDTR(HANDLE fd);
VOID COMSetRTS(HANDLE fd);
VOID COMClearRTS(HANDLE fd);
VOID processargs(int argc, char * argv[]);
#include <math.h>
#include "ARDOPC.h"
void GetSoundDevices();
#ifdef LOGTOHOST
// Log output sent to host instead of File
#define LOGBUFFERSIZE 2048
char LogToHostBuffer[LOGBUFFERSIZE];
int LogToHostBufferLen;
#endif
// Windows works with signed samples +- 32767
// STM32 DAC uses unsigned 0 - 4095
// Currently use 1200 samples for TX but 480 for RX to reduce latency
short buffer[2][SendSize]; // Two Transfer/DMA buffers of 0.1 Sec
short inbuffer[5][ReceiveSize]; // Input Transfer/ buffers of 0.1 Sec
BOOL Loopback = FALSE;
//BOOL Loopback = TRUE;
char CaptureDevice[80] = "0"; //"2";
char PlaybackDevice[80] = "0"; //"1";
BOOL UseLeft = 1;
BOOL UseRight = 1;
char LogDir[256] = "";
FILE *logfile[3] = {NULL, NULL, NULL};
char LogName[3][256] = {"ARDOPDebug", "ARDOPException", "ARDOPSession"};
#define DEBUGLOG 0
#define EXCEPTLOG 1
#define SESSIONLOG 2
char * CaptureDevices = NULL;
char * PlaybackDevices = NULL;
int CaptureCount = 0;
int PlaybackCount = 0;
int CaptureIndex = -1; // Card number
int PlayBackIndex = -1;
char CaptureNames[16][MAXPNAMELEN + 2]= {""};
char PlaybackNames[16][MAXPNAMELEN + 2]= {""};
WAVEFORMATEX wfx = { WAVE_FORMAT_PCM, 1, 12000, 12000, 2, 16, 0 };
HWAVEOUT hWaveOut = 0;
HWAVEIN hWaveIn = 0;
WAVEHDR header[2] =
{
{(char *)buffer[0], 0, 0, 0, 0, 0, 0, 0},
{(char *)buffer[1], 0, 0, 0, 0, 0, 0, 0}
};
WAVEHDR inheader[5] =
{
{(char *)inbuffer[0], 0, 0, 0, 0, 0, 0, 0},
{(char *)inbuffer[1], 0, 0, 0, 0, 0, 0, 0},
{(char *)inbuffer[2], 0, 0, 0, 0, 0, 0, 0},
{(char *)inbuffer[3], 0, 0, 0, 0, 0, 0, 0},
{(char *)inbuffer[4], 0, 0, 0, 0, 0, 0, 0}
};
WAVEOUTCAPS pwoc;
WAVEINCAPS pwic;
unsigned int RTC = 0;
void InitSound(BOOL Quiet);
void HostPoll();
void TCPHostPoll();
void SerialHostPoll();
BOOL WriteCOMBlock(HANDLE fd, char * Block, int BytesToWrite);
int Ticks;
LARGE_INTEGER Frequency;
LARGE_INTEGER StartTicks;
LARGE_INTEGER NewTicks;
int LastNow;
extern void Generate50BaudTwoToneLeaderTemplate();
extern BOOL blnDISCRepeating;
#define TARGET_RESOLUTION 1 // 1-millisecond target resolution
VOID __cdecl Debugprintf(const char * format, ...)
{
char Mess[10000];
va_list(arglist);
va_start(arglist, format);
vsprintf(Mess, format, arglist);
strcat(Mess, "\r\n");
WriteDebugLog(6, Mess);
return;
}
BOOL CtrlHandler(DWORD fdwCtrlType)
{
switch( fdwCtrlType )
{
// Handle the CTRL-C signal.
case CTRL_C_EVENT:
printf( "Ctrl-C event\n\n" );
blnClosing = TRUE;
Beep( 750, 300 );
Sleep(1000);
return( TRUE );
// CTRL-CLOSE: confirm that the user wants to exit.
case CTRL_CLOSE_EVENT:
blnClosing = TRUE;
printf( "Ctrl-Close event\n\n" );
Sleep(20000);
Beep( 750, 300 );
return( TRUE );
// Pass other signals to the next handler.
case CTRL_BREAK_EVENT:
Beep( 900, 200 );
printf( "Ctrl-Break event\n\n" );
blnClosing = TRUE;
Beep( 750, 300 );
return FALSE;
case CTRL_LOGOFF_EVENT:
Beep( 1000, 200 );
printf( "Ctrl-Logoff event\n\n" );
return FALSE;
case CTRL_SHUTDOWN_EVENT:
Beep( 750, 500 );
printf( "Ctrl-Shutdown event\n\n" );
blnClosing = TRUE;
Beep( 750, 300 );
return FALSE;
default:
return FALSE;
}
}
void main(int argc, char * argv[])
{
TIMECAPS tc;
unsigned int wTimerRes;
DWORD t, lastt = 0;
int i = 0;
SetConsoleCtrlHandler((PHANDLER_ROUTINE)CtrlHandler, TRUE);
if (timeGetDevCaps(&tc, sizeof(TIMECAPS)) != TIMERR_NOERROR)
{
// Error; application can't continue.
}
wTimerRes = min(max(tc.wPeriodMin, TARGET_RESOLUTION), tc.wPeriodMax);
timeBeginPeriod(wTimerRes);
t = timeGetTime();
processargs(argc, argv);
if (LogDir[0])
{
sprintf(&LogName[0][0], "%s/%s", LogDir, "ARDOPDebug");
sprintf(&LogName[1][0], "%s/%s", LogDir, "ARDOPException");
sprintf(&LogName[2][0], "%s/%s", LogDir, "ARDOPSession");
}
WriteDebugLog(LOGALERT, "ARDOPC Version %s", ProductVersion);
if (HostPort[0])
{
char *pkt = strlop(HostPort, '/');
if (_memicmp(HostPort, "COM", 3) == 0)
{
SerialMode = 1;
port = atoi(HostPort + 3);
}
else
port = atoi(HostPort);
if (pkt)
pktport = atoi(pkt);
}
_strupr(CaptureDevice);
_strupr(PlaybackDevice);
if (PTTPort[0])
{
char * Baud = strlop(PTTPort, ':');
if (Baud)
PTTBAUD = atoi(Baud);
hPTTDevice = OpenCOMPort(PTTPort, PTTBAUD, FALSE, FALSE, FALSE, 0);
}
if (CATPort[0])
{
char * Baud = strlop(CATPort, ':');
if (strcmp(CATPort, PTTPort) == 0)
{
hCATDevice = hPTTDevice;
}
else
{
if (Baud)
CATBAUD = atoi(Baud);
hCATDevice = OpenCOMPort(CATPort, CATBAUD, FALSE, FALSE, FALSE, 0);
}
}
if (hCATDevice)
{
WriteDebugLog(LOGALERT, "CAT Control on port %s", CATPort);
COMSetRTS(hPTTDevice);
COMSetDTR(hPTTDevice);
if (PTTOffCmdLen)
{
WriteDebugLog(LOGALERT, "PTT using CAT Port", CATPort);
RadioControl = TRUE;
}
}
else
{
// Warn of -u and -k defined but no CAT Port
if (PTTOffCmdLen)
WriteDebugLog(LOGALERT, "Warning PTT Off string defined but no CAT port", CATPort);
}
if (hPTTDevice)
{
WriteDebugLog(LOGALERT, "Using RTS on port %s for PTT", PTTPort);
COMClearRTS(hPTTDevice);
COMClearDTR(hPTTDevice);
RadioControl = TRUE;
}
QueryPerformanceFrequency(&Frequency);
Frequency.QuadPart /= 1000; // Microsecs
QueryPerformanceCounter(&StartTicks);
GetSoundDevices();
if(!SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS))
printf("Failed to set High Priority (%d)\n"), GetLastError();
ardopmain();
}
unsigned int getTicks()
{
return timeGetTime();
// QueryPerformanceCounter(&NewTicks);
// return (int)(NewTicks.QuadPart - StartTicks.QuadPart) / Frequency.QuadPart;
}
void printtick(char * msg)
{
QueryPerformanceCounter(&NewTicks);
WriteDebugLog(LOGCRIT, "%s %i\r", msg, Now - LastNow);
LastNow = Now;
}
void txSleep(int mS)
{
// called while waiting for next TX buffer. Run background processes
PollReceivedSamples(); // discard any received samples
if (SerialMode)
SerialHostPoll();
else
TCPHostPoll();
Sleep(mS);
if (PKTLEDTimer && Now > PKTLEDTimer)
{
PKTLEDTimer = 0;
SetLED(PKTLED, 0); // turn off packet rxed led
}
}
int PriorSize = 0;
int Index = 0; // DMA TX Buffer being used 0 or 1
int inIndex = 0; // DMA Buffer being used
FILE * wavfp1;
BOOL DMARunning = FALSE; // Used to start DMA on first write
short * SendtoCard(unsigned short * buf, int n)
{
header[Index].dwBufferLength = n * 2;
waveOutPrepareHeader(hWaveOut, &header[Index], sizeof(WAVEHDR));
waveOutWrite(hWaveOut, &header[Index], sizeof(WAVEHDR));
// wait till previous buffer is complete
while (!(header[!Index].dwFlags & WHDR_DONE))
{
txSleep(10); // Run buckground while waiting
}
waveOutUnprepareHeader(hWaveOut, &header[!Index], sizeof(WAVEHDR));
Index = !Index;
return &buffer[Index][0];
}
// // This generates a nice musical pattern for sound interface testing
// for (t = 0; t < sizeof(buffer); ++t)
// buffer[t] =((((t * (t >> 8 | t >> 9) & 46 & t >> 8)) ^ (t & t >> 13 | t >> 6)) & 0xFF);
void GetSoundDevices()
{
int i;
WriteDebugLog(LOGALERT, "Capture Devices");
CaptureCount = waveInGetNumDevs();
CaptureDevices = malloc((MAXPNAMELEN + 2) * CaptureCount);
CaptureDevices[0] = 0;
for (i = 0; i < CaptureCount; i++)
{
waveInOpen(&hWaveIn, i, &wfx, 0, 0, CALLBACK_NULL); //WAVE_MAPPER
waveInGetDevCaps((UINT_PTR)hWaveIn, &pwic, sizeof(WAVEINCAPS));
if (CaptureDevices)
strcat(CaptureDevices, ",");
strcat(CaptureDevices, pwic.szPname);
WriteDebugLog(LOGALERT, "%d %s", i, pwic.szPname);
memcpy(&CaptureNames[i][0], pwic.szPname, MAXPNAMELEN);
_strupr(&CaptureNames[i][0]);
}
WriteDebugLog(LOGALERT, "Playback Devices");
PlaybackCount = waveOutGetNumDevs();
PlaybackDevices = malloc((MAXPNAMELEN + 2) * PlaybackCount);
PlaybackDevices[0] = 0;
for (i = 0; i < PlaybackCount; i++)
{
waveOutOpen(&hWaveOut, i, &wfx, 0, 0, CALLBACK_NULL); //WAVE_MAPPER
waveOutGetDevCaps((UINT_PTR)hWaveOut, &pwoc, sizeof(WAVEOUTCAPS));
if (PlaybackDevices[0])
strcat(PlaybackDevices, ",");
strcat(PlaybackDevices, pwoc.szPname);
WriteDebugLog(LOGALERT, "%i %s", i, pwoc.szPname);
memcpy(&PlaybackNames[i][0], pwoc.szPname, MAXPNAMELEN);
_strupr(&PlaybackNames[i][0]);
waveOutClose(hWaveOut);
}
}
void InitSound(BOOL Report)
{
int i, ret;
header[0].dwFlags = WHDR_DONE;
header[1].dwFlags = WHDR_DONE;
if (strlen(PlaybackDevice) <= 2)
PlayBackIndex = atoi(PlaybackDevice);
else
{
// Name instead of number. Look for a substring match
for (i = 0; i < PlaybackCount; i++)
{
if (strstr(&PlaybackNames[i][0], PlaybackDevice))
{
PlayBackIndex = i;
break;
}
}
}
ret = waveOutOpen(&hWaveOut, PlayBackIndex, &wfx, 0, 0, CALLBACK_NULL); //WAVE_MAPPER
if (ret)
WriteDebugLog(LOGALERT, "Failed to open WaveOut Device %s Error %d", PlaybackDevice, ret);
else
{
ret = waveOutGetDevCaps((UINT_PTR)hWaveOut, &pwoc, sizeof(WAVEOUTCAPS));
if (Report)
WriteDebugLog(LOGALERT, "Opened WaveOut Device %s", pwoc.szPname);
}
if (strlen(CaptureDevice) <= 2)
CaptureIndex = atoi(CaptureDevice);
else
{
// Name instead of number. Look for a substring match
for (i = 0; i < CaptureCount; i++)
{
if (strstr(&CaptureNames[i][0], CaptureDevice))
{
CaptureIndex = i;
break;
}
}
}
ret = waveInOpen(&hWaveIn, CaptureIndex, &wfx, 0, 0, CALLBACK_NULL); //WAVE_MAPPER
if (ret)
WriteDebugLog(LOGALERT, "Failed to open WaveIn Device %s Error %d", CaptureDevice, ret);
else
{
ret = waveInGetDevCaps((UINT_PTR)hWaveIn, &pwic, sizeof(WAVEINCAPS));
if (Report)
WriteDebugLog(LOGALERT, "Opened WaveIn Device %s", pwic.szPname);
}
// wavfp1 = fopen("s:\\textxxx.wav", "wb");
for (i = 0; i < NumberofinBuffers; i++)
{
inheader[i].dwBufferLength = ReceiveSize * 2;
ret = waveInPrepareHeader(hWaveIn, &inheader[i], sizeof(WAVEHDR));
ret = waveInAddBuffer(hWaveIn, &inheader[i], sizeof(WAVEHDR));
}
ret = waveInStart(hWaveIn);
}
int min = 0, max = 0, lastlevelGUI = 0, lastlevelreport = 0;
UCHAR CurrentLevel = 0; // Peak from current samples
void PollReceivedSamples()
{
// Process any captured samples
// Ideally call at least every 100 mS, more than 200 will loose data
// For level display we want a fairly rapir level average but only want to report
// to log every 10 secs or so
if (inheader[inIndex].dwFlags & WHDR_DONE)
{
short * ptr = &inbuffer[inIndex][0];
int i;
for (i = 0; i < ReceiveSize; i++)
{
if (*(ptr) < min)
min = *ptr;
else if (*(ptr) > max)
max = *ptr;
ptr++;
}
CurrentLevel = ((max - min) * 75) /32768; // Scale to 150 max
if ((Now - lastlevelGUI) > 2000) // 2 Secs
{
if (WaterfallActive == 0 && SpectrumActive == 0) // Don't need to send as included in Waterfall Line
SendtoGUI('L', &CurrentLevel, 1); // Signal Level
lastlevelGUI = Now;
if ((Now - lastlevelreport) > 10000) // 10 Secs
{
char HostCmd[64];
lastlevelreport = Now;
sprintf(HostCmd, "INPUTPEAKS %d %d", min, max);
WriteDebugLog(LOGDEBUG, "Input peaks = %d, %d", min, max);
SendCommandToHostQuiet(HostCmd);
}
min = max = 0;
}
// WriteDebugLog(LOGDEBUG, "Process %d %d", inIndex, inheader[inIndex].dwBytesRecorded/2);
if (Capturing && Loopback == FALSE)
ProcessNewSamples(&inbuffer[inIndex][0], inheader[inIndex].dwBytesRecorded/2);
waveInUnprepareHeader(hWaveIn, &inheader[inIndex], sizeof(WAVEHDR));
inheader[inIndex].dwFlags = 0;
waveInPrepareHeader(hWaveIn, &inheader[inIndex], sizeof(WAVEHDR));
waveInAddBuffer(hWaveIn, &inheader[inIndex], sizeof(WAVEHDR));
inIndex++;
if (inIndex == NumberofinBuffers)
inIndex = 0;
}
}
void StopCapture()
{
Capturing = FALSE;
// waveInStop(hWaveIn);
// WriteDebugLog(LOGDEBUG, "Stop Capture");
}
void StartCapture()
{
Capturing = TRUE;
DiscardOldSamples();
ClearAllMixedSamples();
State = SearchingForLeader;
// WriteDebugLog(LOGDEBUG, "Start Capture");
}
void CloseSound()
{
waveInClose(hWaveIn);
waveOutClose(hWaveOut);
}
#include <stdarg.h>
VOID CloseDebugLog()
{
if(logfile[0])
fclose(logfile[0]);
logfile[0] = NULL;
}
VOID WriteDebugLog(int LogLevel, const char * format, ...)
{
char Mess[10000];
va_list(arglist);
char timebuf[128];
UCHAR Value[100];
SYSTEMTIME st;
va_start(arglist, format);
#ifdef LOGTOHOST
vsnprintf(&Mess[1], sizeof(Mess), format, arglist);
strcat(Mess, "\r\n");
Mess[0] = LogLevel + '0';
SendLogToHost(Mess, strlen(Mess));
#else
vsnprintf(Mess, sizeof(Mess), format, arglist);
strcat(Mess, "\r\n");
if (LogLevel <= ConsoleLogLevel)
printf(Mess);
if (!DebugLog)
return;
if (LogLevel > FileLogLevel)
return;
GetSystemTime(&st);
if (logfile[0] == NULL)
{
if (HostPort[0])
sprintf(Value, "%s%s_%04d%02d%02d.log",
&LogName[0], HostPort, st.wYear, st.wMonth, st.wDay);
else
sprintf(Value, "%s%d_%04d%02d%02d.log",
&LogName[0], port, st.wYear, st.wMonth, st.wDay);
if ((logfile[0] = fopen(Value, "ab")) == NULL)
return;
}
sprintf(timebuf, "%02d:%02d:%02d.%03d ",
st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
fputs(timebuf, logfile[0]);
fputs(Mess, logfile[0]);
#endif
return;
}
FILE *statslogfile = NULL;
VOID CloseStatsLog()
{
fclose(statslogfile);
statslogfile = NULL;
}
VOID Statsprintf(const char * format, ...)
{
char Mess[10000];
va_list(arglist);
UCHAR Value[100];
char timebuf[32];
SYSTEMTIME st;
va_start(arglist, format);
vsnprintf(Mess, sizeof(Mess), format, arglist);
strcat(Mess, "\r\n");
if (statslogfile == NULL)
{
GetSystemTime(&st);
if (HostPort[0])
sprintf(Value, "%s%s_%04d%02d%02d.log",
&LogName[2], HostPort, st.wYear, st.wMonth, st.wDay);
else
sprintf(Value, "%s%d_%04d%02d%02d.log",
&LogName[2], port, st.wYear, st.wMonth, st.wDay);
if ((statslogfile = fopen(Value, "ab")) == NULL)
return;
else
{
sprintf(timebuf, "%02d:%02d:%02d.%03d\r\n",
st.wHour, st.wMinute, st.wSecond, st.wMilliseconds);
fputs(timebuf, statslogfile);
}
}
fputs(Mess, statslogfile);
printf(Mess);
return;
}
VOID WriteSamples(short * buffer, int len)
{
fwrite(buffer, 1, len * 2, wavfp1);
}
unsigned short * SoundInit()
{
Index = 0;
return &buffer[0][0];
}
// Called at end of transmission
extern int Number; // Number of samples waiting to be sent
void SoundFlush()
{
// Append Trailer then wait for TX to complete
AddTrailer(); // add the trailer.
if (Loopback)
ProcessNewSamples(buffer[Index], Number);
SendtoCard(buffer[Index], Number);
// Wait for all sound output to complete
while (!(header[0].dwFlags & WHDR_DONE))
txSleep(10);
while (!(header[1].dwFlags & WHDR_DONE))
txSleep(10);
// I think we should turn round the link here. I dont see the point in
// waiting for MainPoll
SoundIsPlaying = FALSE;
//'Debug.WriteLine("[tmrPoll.Tick] Play stop. Length = " & Format(Now.Subtract(dttTestStart).TotalMilliseconds, "#") & " ms")
// WriteDebugLog(LOGDEBUG, "Play complete blnEnbARQRpt = %d", blnEnbARQRpt);
if (blnEnbARQRpt > 0 || blnDISCRepeating) // Start Repeat Timer if frame should be repeated
dttNextPlay = Now + intFrameRepeatInterval;
// WriteDebugLog(LOGDEBUG, "Now %d Now - dttNextPlay 1 = %d", Now, Now - dttNextPlay);
KeyPTT(FALSE); // Unkey the Transmitter
// Clear the capture buffers. I think this is only needed when testing
// with audio loopback.
// memset(&buffer[0], 0, 2400);
// memset(&buffer[1], 0, 2400);
StartCapture();
//' clear the transmit label
// stcStatus.BackColor = SystemColors.Control
// stcStatus.ControlName = "lblXmtFrame" ' clear the transmit label
// queTNCStatus.Enqueue(stcStatus)
// stcStatus.ControlName = "lblRcvFrame" ' clear the Receive label
// queTNCStatus.Enqueue(stcStatus)
return;
}
void StartCodec(char * strFault)
{
strFault[0] = 0;
InitSound(FALSE);
}
void StopCodec(char * strFault)
{
CloseSound();
strFault[0] = 0;
}
VOID RadioPTT(BOOL PTTState)
{
if (PTTMode & PTTRTS)
if (PTTState)
COMSetRTS(hPTTDevice);
else
COMClearRTS(hPTTDevice);
if (PTTMode & PTTDTR)
if (PTTState)
COMSetDTR(hPTTDevice);
else
COMClearDTR(hPTTDevice);
if (PTTMode & PTTCI_V)
if (PTTState)
WriteCOMBlock(hCATDevice, PTTOnCmd, PTTOnCmdLen);
else
WriteCOMBlock(hCATDevice, PTTOffCmd, PTTOffCmdLen);
}
// Function to send PTT TRUE or PTT FALSE comannad to Host or if local Radio control Keys radio PTT
const char BoolString[2][6] = {"FALSE", "TRUE"};
BOOL KeyPTT(BOOL blnPTT)
{
// Returns TRUE if successful False otherwise
if (blnLastPTT && !blnPTT)
dttStartRTMeasure = Now; // start a measurement on release of PTT.
if (!RadioControl)
if (blnPTT)
SendCommandToHostQuiet("PTT TRUE");
else
SendCommandToHostQuiet("PTT FALSE");
else
RadioPTT(blnPTT);
WriteDebugLog(LOGDEBUG, "[Main.KeyPTT] PTT-%s", BoolString[blnPTT]);
blnLastPTT = blnPTT;
SetLED(0, blnPTT);
return TRUE;
}
void PlatformSleep()
{
// Sleep to avoid using all cpu
Sleep(10);
if (PKTLEDTimer && Now > PKTLEDTimer)
{
PKTLEDTimer = 0;
SetLED(PKTLED, 0); // turn off packet rxed led
}
}
void displayState(const char * State)
{
char Msg[80];
strcpy(Msg, State);
SendtoGUI('S', Msg, strlen(Msg) + 1); // Protocol State
// Dummy for i2c display
}
void DrawTXMode(const char * Mode)
{
char Msg[80];
strcpy(Msg, Mode);
SendtoGUI('T', Msg, strlen(Msg) + 1); // TX Frame
}
void DrawTXFrame(const char * Frame)
{
char Msg[80];
strcpy(Msg, Frame);
SendtoGUI('T', Msg, strlen(Msg) + 1); // TX Frame
}
void DrawRXFrame(int State, const char * Frame)
{
unsigned char Msg[64];
Msg[0] = State; // Pending/Good/Bad
strcpy(&Msg[1], Frame);
SendtoGUI('R', Msg, strlen(Frame) + 2); // RX Frame
}
char Leds[8]= {0};
unsigned int PKTLEDTimer = 0;
void SetLED(int LED, int State)
{
// If GUI active send state
Leds[LED] = State;
SendtoGUI('D', Leds, 8);
}
void displayCall(int dirn, char * call)
{
char Msg[32];
sprintf(Msg, "%c%s", dirn, call);
SendtoGUI('I', Msg, strlen(Msg));
}
HANDLE OpenCOMPort(VOID * pPort, int speed, BOOL SetDTR, BOOL SetRTS, BOOL Quiet, int Stopbits)
{
char szPort[80];
BOOL fRetVal ;
COMMTIMEOUTS CommTimeOuts ;
int Err;
char buf[100];
HANDLE fd;
DCB dcb;
// if Port Name starts COM, convert to \\.\COM or ports above 10 wont work
if ((unsigned int)pPort < 256) // just a com port number
sprintf( szPort, "\\\\.\\COM%d", pPort);
else if (_memicmp(pPort, "COM", 3) == 0)
{
char * pp = (char *)pPort;
int p = atoi(&pp[3]);
sprintf( szPort, "\\\\.\\COM%d", p);
}
else
strcpy(szPort, pPort);
// open COMM device
fd = CreateFile( szPort, GENERIC_READ | GENERIC_WRITE,
0, // exclusive access
NULL, // no security attrs
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL );
if (fd == (HANDLE) -1)
{
if (Quiet == 0)
{
if (pPort < (VOID *)256)
sprintf(buf," COM%d could not be opened \r\n ", (unsigned int)pPort);
else
sprintf(buf," %s could not be opened \r\n ", pPort);
// WritetoConsoleLocal(buf);
OutputDebugString(buf);
}
return (FALSE);
}
Err = GetFileType(fd);
// setup device buffers
SetupComm(fd, 4096, 4096 ) ;
// purge any information in the buffer
PurgeComm(fd, PURGE_TXABORT | PURGE_RXABORT |
PURGE_TXCLEAR | PURGE_RXCLEAR ) ;
// set up for overlapped I/O
CommTimeOuts.ReadIntervalTimeout = 0xFFFFFFFF ;
CommTimeOuts.ReadTotalTimeoutMultiplier = 0 ;
CommTimeOuts.ReadTotalTimeoutConstant = 0 ;
CommTimeOuts.WriteTotalTimeoutMultiplier = 0 ;
// CommTimeOuts.WriteTotalTimeoutConstant = 0 ;
CommTimeOuts.WriteTotalTimeoutConstant = 500 ;
SetCommTimeouts(fd, &CommTimeOuts ) ;
dcb.DCBlength = sizeof( DCB ) ;
GetCommState(fd, &dcb ) ;
dcb.BaudRate = speed;
dcb.ByteSize = 8;
dcb.Parity = 0;
dcb.StopBits = TWOSTOPBITS;
dcb.StopBits = Stopbits;
// setup hardware flow control
dcb.fOutxDsrFlow = 0;
dcb.fDtrControl = DTR_CONTROL_DISABLE ;
dcb.fOutxCtsFlow = 0;
dcb.fRtsControl = RTS_CONTROL_DISABLE ;
// setup software flow control
dcb.fInX = dcb.fOutX = 0;
dcb.XonChar = 0;
dcb.XoffChar = 0;
dcb.XonLim = 100 ;
dcb.XoffLim = 100 ;
// other various settings
dcb.fBinary = TRUE ;
dcb.fParity = FALSE;
fRetVal = SetCommState(fd, &dcb);
if (fRetVal)