X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=boards%2F__serial.c;fp=boards%2F__serial.c;h=3b482402fb85ab52b689d07b41f8612b8bfa04eb;hp=0000000000000000000000000000000000000000;hb=43725da7349c85fa13e828fdbf20cc7ac8d298d6;hpb=386f5371eb984fb9c2860c83e740890a75cd45c1

diff --git a/boards/__serial.c b/boards/__serial.c
new file mode 100644
index 0000000..3b48240
--- /dev/null
+++ b/boards/__serial.c
@@ -0,0 +1,124 @@
+
+#include "__serial.h"
+
+HANDLE SerialPort = NULL;  // Handle of SerialPort itself.
+
+BOOL SerialOpen(int port, int baud)
+{
+  HANDLE Comport;
+  DCB myDCB;
+  COMMTIMEOUTS CTout;
+  char str[100];
+
+  if (port > 9)
+    sprintf(str, "\\\\.\\COM%d", port);
+  else
+    sprintf(str, "COM%d", port);
+
+  // Open the serial port
+  if ((Comport = CreateFile(str, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL)) == INVALID_HANDLE_VALUE)
+    return FALSE;
+
+  // Configure Serial port (Setup Comm)
+
+  // Buffer sizes
+  if (!SetupComm(Comport, 128, 128))
+    return FALSE;
+
+  // Setup DCB using current values
+  if (!GetCommState(Comport, &myDCB))
+    return FALSE;
+
+  myDCB.fInX = FALSE;     // Turn off xon/xoff handler
+  myDCB.fOutX = FALSE;
+  myDCB.fOutxDsrFlow = FALSE;
+  myDCB.fOutxCtsFlow = FALSE;    // no hardware flow control.
+  myDCB.BaudRate = baud;
+  myDCB.DCBlength = sizeof(DCB);
+  myDCB.fBinary = 1;
+  myDCB.fParity = 0;
+  myDCB.fDtrControl = DTR_CONTROL_DISABLE;
+  myDCB.fDsrSensitivity = 0;
+  myDCB.fTXContinueOnXoff = 1;
+  myDCB.fNull = 0;
+  myDCB.fRtsControl = RTS_CONTROL_DISABLE;
+  myDCB.fDummy2 = 0;
+  myDCB.wReserved = 0;
+  myDCB.Parity = NOPARITY;
+  myDCB.StopBits = ONESTOPBIT;
+  myDCB.wReserved1 = 0;
+  myDCB.ByteSize = 8;
+
+  if (!SetCommState(Comport, &myDCB))
+	return FALSE;
+
+  // Set timeouts
+  CTout.ReadIntervalTimeout = 0xffffffff;
+  CTout.ReadTotalTimeoutMultiplier = 0;
+  CTout.ReadTotalTimeoutConstant = 0;
+  CTout.WriteTotalTimeoutMultiplier = 0;
+  CTout.WriteTotalTimeoutConstant = 5000;         // don't hang if CTS is locked, for example
+
+  SetCommTimeouts(Comport, &CTout);
+  EscapeCommFunction(Comport, SETDTR);
+  PurgeComm(Comport, PURGE_TXCLEAR | PURGE_RXCLEAR);
+
+  SerialPort = Comport;
+
+  return TRUE;
+}
+
+void SerialClose(void)
+{
+  if (SerialPort == NULL) return;
+
+  PurgeComm(SerialPort, PURGE_TXCLEAR | PURGE_RXCLEAR);
+  CloseHandle(SerialPort);
+
+  SerialPort = NULL;
+}
+
+BOOL SerialSendChar(int c)
+{
+  DWORD cr;
+  if(WriteFile(SerialPort, &c, 1, (LPDWORD)&cr, NULL) && cr)
+    return TRUE;
+  else
+    return FALSE;
+}
+
+int SerialIsOpen(void)
+{
+  return (SerialPort != NULL);
+}
+
+int SerialGetChar(void)
+{
+  uint8 ch;
+  DWORD cr;
+  if (SerialPort != NULL) {
+    if (ReadFile(SerialPort, &ch, 1, (LPDWORD)&cr, NULL) && cr)
+      return (int)ch;
+  }
+  return EOF;
+}
+
+void SendCmd(uint8 *cmd, int size)
+{
+   int i;
+   for(i=0; i<size; i++) {
+     SerialSendChar(cmd[i]);
+   }
+}
+
+int ReadResp(uint8 *resp, int size)
+{
+   int i = 0, sum = 0, data;
+   while(i < size) {
+	   while ((data = SerialGetChar()) == EOF) {}
+       resp[i] = data & 0xff;
+       sum += (data & 0xff);
+       i++;
+   }
+   return sum;
+}