Ryan Malloy
a7f62e5d7e
- Library source from AN721SW (cp210xmanufacturing_1.0.tar.gz) - Manufacturing tool source (cp210xsmt) - Builds 64-bit shared library with: make LIB_ARCH=64 - Datasheets and app notes in docs/
106 lines
3.5 KiB
C++
106 lines
3.5 KiB
C++
// Copyright (c) 2016 by Silicon Laboratories Inc. All rights reserved.
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// The program contained in this listing is proprietary to Silicon Laboratories,
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// headquartered in Austin, Texas, U.S.A. and is subject to worldwide copyright
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// protection, including protection under the United States Copyright Act of 1976
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// as an unpublished work, pursuant to Section 104 and Section 408 of Title XVII
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// of the United States code. Unauthorized copying, adaptation, distribution,
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// use, or display is prohibited by this law.
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#ifndef __SERIAL_PORT_H__
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#define __SERIAL_PORT_H__
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#include <string>
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#include <vector>
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#include <Windows.h>
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#include <ntddser.h>
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#ifndef TRACE
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#error Define TRACE before including this. E.g., #define TRACE printf
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#endif
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class CWinApiErr // thrown any time a Windows API fails
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{
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public:
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CWinApiErr( char *ApiName )
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{
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TRACE( "%s: LastError %d\n", ApiName, ::GetLastError());
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}
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};
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//---------------------------------------------------------------------
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// Serial port primitives needed for the tests
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// Throws CWinApiErr when unexpected happens.
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//---------------------------------------------------------------------
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class CSerialPort
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{
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HANDLE m_hSer;
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public:
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CSerialPort( const std::string ComName)
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{
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m_hSer = ::CreateFile( std::string( "\\\\.\\" + ComName).c_str(),
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GENERIC_READ | GENERIC_WRITE, 0 /*share*/,
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NULL /*security*/, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (m_hSer == INVALID_HANDLE_VALUE) {
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throw CWinApiErr( "CreateFile");
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}
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}
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~CSerialPort()
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{
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if( m_hSer != INVALID_HANDLE_VALUE) {
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::CloseHandle( m_hSer);
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}
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}
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void Mode( const std::string Mode )
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{
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DCB Dcb = { 0 };
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Dcb.DCBlength = sizeof( Dcb);
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if (!::BuildCommDCB( Mode.c_str(), &Dcb)) {
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throw CWinApiErr( "BuildCommDCB");
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}
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if( !::SetCommState( m_hSer, &Dcb)) {
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throw CWinApiErr( "SetCommState");
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}
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}
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DWORD Write( std::vector<BYTE> Data)
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{
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DWORD CbWritten = 0;
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if( !::WriteFile( m_hSer, Data.data(), Data.size(), &CbWritten, NULL)) {
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throw CWinApiErr( "WriteFile");
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}
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TRACE( "Wrote %x bytes\n", CbWritten);
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if( CbWritten != Data.size()) {
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TRACE( "ERROR: was asked to write %x bytes\n", Data.size());
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}
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return CbWritten;
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}
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void SetCommMask( DWORD Mask)
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{
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if( !::SetCommMask( m_hSer, Mask )) {
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throw CWinApiErr( "SetCommMask");
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}
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}
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DWORD WaitCommEvent()
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{
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DWORD Events;
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if( !::WaitCommEvent( m_hSer, &Events, NULL)) {
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throw CWinApiErr( "WaitCommEvent");
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}
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TRACE( "Received Events %x\n", Events);
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return Events;
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}
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void GetSerialStatus( SERIAL_STATUS &s)
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{
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DWORD CbReturned = 0;
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if( !::DeviceIoControl( m_hSer, IOCTL_SERIAL_GET_COMMSTATUS, NULL, 0,
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&s, sizeof( s), &CbReturned, NULL)) {
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throw CWinApiErr( "DeviceIoControl");
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} else if( CbReturned != sizeof( s)) {
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::SetLastError( ERROR_SUCCESS);
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throw CWinApiErr( "unexpected IOCTL_SERIAL_GET_COMMSTATUS size");
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} else {
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TRACE( "AmountInOutQueue %x\n", s.AmountInOutQueue);
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}
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}
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};
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#endif // __SERIAL_PORT_H__
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