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authorJörg Hohensohn <hohensoh@rockbox.org>2003-11-30 11:37:43 +0000
committerJörg Hohensohn <hohensoh@rockbox.org>2003-11-30 11:37:43 +0000
commit6a4e4c87c24455e18bbd77565cb3e993ee350618 (patch)
tree6f2ceac4da97aa63ff8deef939bd3cc2d56d3466 /flash/uart_boot/uart_win.c
parent014c4fa1f8d56850cfd504a90221c293e4a158f6 (diff)
downloadrockbox-6a4e4c87c24455e18bbd77565cb3e993ee350618.tar.gz
rockbox-6a4e4c87c24455e18bbd77565cb3e993ee350618.zip
source code for all my flash stuff, now finally in cvs
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4083 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'flash/uart_boot/uart_win.c')
-rw-r--r--flash/uart_boot/uart_win.c138
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;
+}