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//=============================================================================
// Project: SIMpad
//=============================================================================
// FILE-NAME: serialdownload.hpp
// FUNCTION: Serial download interface.
//
// AUTHOR: Juergen Messerer, Peter Voser
// CREAT.-DATE: 01.04.2001 (dd.mm.yy)
//
// NOTES: -
//
//=============================================================================
#ifndef __SERIAL_DOWNLOAD
#define __SERIAL_DOWNLOAD
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <stdio.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>
const unsigned char STX = 2;
const unsigned char ETX = 3;
const unsigned char BEL = 7;
const unsigned char ACK_BD = 11;
const unsigned char ACK_OK = 6;
const unsigned char ACK_NOK = 15;
const unsigned char FILLER = 0xff;
class SerialDownload
{
public:
SerialDownload();
~SerialDownload();
//=============================================================================
// PURPOSE: Opening a serial port.
//
// PARAMETERS:
// portDev: (IN) port device to open.
// errorNumber: (OUT) error number determined with
// GetLastError().
// RETURN VALUE:
// serialPort: Filedescriptor of opened serial port.
// If the function fails, it returns -1.
//
// COMMENTS: -
//=============================================================================
int openSerialPort(const char* portDev, int &errorNumber);
//=============================================================================
// PURPOSE: Loading file with a image
//
// PARAMETERS:
// fileName: (IN) name of file to open
// buffer: (OUT) pointer to loaded image file.
// numberOfBytes: (OUT) size of file.
//
// RETURN VALUE:
// 0: success
// -1: specified file not found
// -2: not enough memory to load file
// -3: cannot read file
//
// COMMENTS: -
//=============================================================================
int loadFile(const char *fileName, char *&buffer, int &numberOfBytes);
//=============================================================================
// PURPOSE: Connecting to the SIMpad.
//
// PARAMETERS:
// fastBaudRate: (IN) value of fast baud rate.
// errorNumber: (OUT) error number errno
//
// RETURN VALUE:
// 0: success
// -1: switching to connection baud rate 38400baud failed.
// -2: writing to serial port failed.
// -3: switching to fast baud rate failed.
// -4: writing to serial port with fast baud rate failed.
//
// COMMENTS: The connection is set up according to the bootloader's
// serial download protocoll.
//=============================================================================
int connectToSimpad(const int fastBaudRate,
int& errorNumber);
//=============================================================================
// PURPOSE: Sending a block of 512byte.
//
// PARAMETERS:
// b: (IN) pointer to the beginning of the 512byte buffer.
// len: (IN) length of the buffer.
// errorNumber: (OUT) error number determined with
// GetLastError().
// RETURN VALUE:
// TRUE: success
// FALSE: error. See errorNumber for the reason.
//
// COMMENTS: The block, which is sent, is always 512byte long. If the
// buffer counts less than 512byte, the block is filled with
// the FILLER pattern.
//=============================================================================
bool sendBlock(const char *b,
const int len,
int& errorNumber);
//=============================================================================
// PURPOSE: Waiting for the end of burning.
//
// PARAMETERS: -
//
// RETURN VALUE: -
//
// COMMENTS: -
//=============================================================================
void waitForEndOfBurning(void);
private:
// File descriptor of open serial port.
int _serialPort;
//=============================================================================
// PURPOSE: Changing baud rate.
//
// PARAMETERS:
// newBaudRate: (IN) new baud rate to switch to.
// errorNumber: (OUT) error number determined with
// GetLastError().
//
// RETURN VALUE:
// TRUE: success
// FALSE: error. See errorNumber for the reason.
//
// serialMENTS: -
//=============================================================================
bool changeBaudRate(const int newBaudRate,
int &errorNumber);
//=============================================================================
// PURPOSE: Waiting for control character.
//
// PARAMETERS:
// transparent: (IN) 0 = received characters are sent to
// stdout.
//
// RETURN VALUE:
// c: control character.
//
// COMMENTS: -
//=============================================================================
unsigned char waitForReply(const int transparent);
};
#endif // __SERIAL_DOWNLOAD
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