1 files changed, 138 insertions, 0 deletions

diff --git a/flash/uart_boot/uart_win.c b/flash/uart_boot/uart_win.c
new file mode 100644
index 0000000000..243017ac88
--- /dev/null
+++ b/flash/uart_boot/uart_win.c
@@ -0,0 +1,138 @@
+// UART wrapper implementation for the Win32 platform
+// make a new version of this file for different systems, e.g. Linux
+
+#include <windows.h>
+#include "scalar_types.h" // (U)INT8/16/32
+#include "Uart.h"
+
+// COMx for windows, returns NULL on error
+tUartHandle UartOpen(char* szPortName)
+{
+        HANDLE serial_handle; 
+        DCB  dcb;
+        COMMTIMEOUTS cto = { 0, 0, 0, 0, 0 };
+
+        memset(&dcb,0,sizeof(dcb));
+
+        /* -------------------------------------------------------------------- */
+        // set DCB to configure the serial port
+        dcb.DCBlength       = sizeof(dcb);
+
+        dcb.fOutxCtsFlow    = 0;
+        dcb.fOutxDsrFlow    = 0;
+        dcb.fDtrControl     = DTR_CONTROL_ENABLE; // enable for power
+        dcb.fDsrSensitivity = 0;
+        dcb.fRtsControl     = RTS_CONTROL_ENABLE; // enable for power
+        dcb.fOutX           = 0;
+        dcb.fInX            = 0;
+
+        /* ----------------- misc parameters ----- */
+        dcb.fErrorChar      = 0;
+        dcb.fBinary         = 1;
+        dcb.fNull           = 0;
+        dcb.fAbortOnError   = 0;
+        dcb.wReserved       = 0;
+        dcb.XonLim          = 2;
+        dcb.XoffLim         = 4;
+        dcb.XonChar         = 0x13;
+        dcb.XoffChar        = 0x19;
+        dcb.EvtChar         = 0;
+
+        /* ----------------- defaults ----- */
+        dcb.BaudRate = 4800;
+        dcb.Parity   = NOPARITY;
+        dcb.fParity  = 0;
+        dcb.StopBits = ONESTOPBIT;
+        dcb.ByteSize = 8;
+
+
+        /* -------------------------------------------------------------------- */
+        // opening serial port
+        serial_handle = CreateFile(szPortName, GENERIC_READ | GENERIC_WRITE,
+                0, NULL, OPEN_EXISTING, FILE_FLAG_WRITE_THROUGH, NULL);
+
+        if (serial_handle == INVALID_HANDLE_VALUE)
+        {
+                //printf("Cannot open port \n");
+                return NULL;
+        }
+
+        SetCommMask(serial_handle, 0);
+        SetCommTimeouts(serial_handle, &cto);
+
+        if(!SetCommState(serial_handle, &dcb))
+        {
+                //printf("Error setting up COM params\n");
+                CloseHandle(serial_handle);
+                return NULL;
+        }
+
+        return serial_handle;
+}
+
+// returns true on success, false on error
+bool UartConfig(tUartHandle handle, long lBaudRate, tParity nParity, tStopBits nStopBits, int nByteSize)
+{
+        DCB  dcb;
+        
+        if (!GetCommState (handle, &dcb))
+        {
+                return false;
+        }
+
+        dcb.BaudRate = lBaudRate;
+        dcb.Parity       = nParity;
+        dcb.StopBits = nStopBits;
+        dcb.ByteSize = nByteSize;
+
+        if(!SetCommState(handle, &dcb))
+        {
+                //DWORD dwErr = GetLastError();
+                //printf("Error %d setting up COM params for baudrate byte\n", dwErr);
+                return false;
+        }
+
+        return true;
+}
+
+// returns how much data was actually transmitted
+long UartWrite(tUartHandle handle, unsigned char* pData, long lSize)
+{
+        BOOL success;
+        DWORD result_nbr;
+
+        success = WriteFile(handle, pData, lSize, &result_nbr, NULL);
+
+        if(!success)
+        {
+                return 0;
+        }
+
+        return result_nbr;
+}
+
+// returns how much data was actually received
+long UartRead(tUartHandle handle, unsigned char* pBuffer, long lSize)
+{
+        BOOL success;
+        DWORD read_nbr;
+
+        success = ReadFile(handle, pBuffer, lSize, &read_nbr, NULL);
+        if(!success)
+        {
+                return 0;
+        }
+
+        return read_nbr;
+}
+
+
+void UartClose(tUartHandle handle)
+{
+        if (handle != NULL)
+        {
+                CloseHandle(handle);
+        }
+
+        return;
+}