Initial commit

2026-08-31 21:04:48 +03:00
commit c0d5110ea7
347 changed files with 57952 additions and 0 deletions
@@ -0,0 +1,106 @@
+#include <windows.h>
+#include <stdio.h>
+
+HANDLE port;
+DCB dcb;
+COMMTIMEOUTS touts;
+extern int debug;
+
+#define BAUD_ERROR -1U
+
+
+static DWORD get_baud(int baud)
+{
+  switch(baud)
+  {
+    case 115200: return CBR_115200;
+    case 57600:  return CBR_57600;
+    case 38400:  return CBR_38400;
+    case 19200:  return CBR_19200;
+    case 9600:   return CBR_9600;
+    case 4800:   return CBR_4800;
+    case 2400:   return CBR_2400;
+    case 1200:   return CBR_1200;
+    default:     return BAUD_ERROR;
+  }
+}
+
+
+
+
+
+//init uart
+int uart_init(char *sname, int baud)
+{
+  char buf[16], *p;
+  DWORD CBR;
+
+  //fix COMx name to \\.\COMx
+  if(strncasecmp(sname,"com",3)==0 && strlen(sname)<7)
+  {
+    sprintf(buf,"\\\\.\\%s",sname);
+    p=buf;
+  }
+  else
+  {
+    p=sname;
+  }
+
+  //check/get baud rate
+  CBR = get_baud(baud);
+  if(CBR==BAUD_ERROR) return -1;
+
+  //open serial line
+  port = CreateFile(p, GENERIC_READ | GENERIC_WRITE,
+      FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
+  if (port==INVALID_HANDLE_VALUE) return -1;
+
+  //set config
+  if (GetCommState(port, &dcb))
+  {
+     dcb.BaudRate = CBR; //CBR_57600; //CBR_115200;
+     dcb.ByteSize = 8; dcb.Parity = 0; dcb.StopBits = 0;
+     dcb.fAbortOnError = 0;
+     SetCommState(port, &dcb);
+  }
+
+  //set timeouts
+  if (GetCommTimeouts(port, &touts))
+  {
+     touts.ReadIntervalTimeout = MAXDWORD;
+     touts.ReadTotalTimeoutMultiplier = MAXDWORD;
+     touts.ReadTotalTimeoutConstant = MAXDWORD;
+     touts.WriteTotalTimeoutMultiplier = MAXDWORD;
+     touts.WriteTotalTimeoutConstant = MAXDWORD;
+
+     SetCommTimeouts(port, &touts);
+  }
+
+  PurgeComm(port, PURGE_RXCLEAR+PURGE_TXCLEAR);
+  return 0;
+}
+
+
+//read bytes
+void uart_read(char *buf, int len)
+{
+  unsigned long nread=0,s;
+
+  for(s=0; s<len;)
+  {
+    ReadFile(port, &buf[s], len-s, &nread, NULL);
+    s+=nread;
+  }
+  if(debug){printf("read: ");for(s=0;s<len;s++) printf("%02x ",(unsigned char)buf[s]); printf("\n");}
+}
+
+
+//write bytes
+void uart_write(char *buf, int len)
+{
+  unsigned long nread=0,s;
+
+  if(debug){printf("write: ");for(s=0;s<len;s++) printf("%02x ",(unsigned char)buf[s]); printf("\n");}
+  WriteFile(port, buf, len, &nread, NULL);
+}
+