avrdude/ser_win32.c

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/*
* avrdude - A Downloader/Uploader for AVR device programmers
* Copyright (C) 2003, 2004 Martin J. Thomas <mthomas@rhrk.uni-kl.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* $Id$ */
/*
* Native Win32 serial interface for avrdude.
*/
#if defined(WIN32NATIVE)
#include <windows.h>
#include <stdio.h>
#include <ctype.h> /* for isprint */
#include "serial.h"
extern char *progname;
extern int verbose;
Mega-commit to bring in both, the STK500v2 support from Erik Walthinsen, as well as JTAG ICE mkII support (by me). Erik's submission has been cleaned up a little bit, mostly to add his name and the current year to the copyright of the new file, remove trailing white space before importing the files, and fix the minor syntax errors in his avrdude.conf.in additions (missing semicolons). The JTAG ICE mkII support should be considered alpha to beta quality at this point. Few things are still to be done, like defering the hfuse (OCDEN) tweaks until they are really required. Also, for reasons not yet known, the target MCU doesn't start to run after signing off from the ICE, it needs a power-cycle first (at least on my STK500). Note that for the JTAG ICE, I did change a few things in the internal API. Notably I made the serial receive timeout configurable by the backends via an exported variable (done in both the Posix and the Win32 implementation), and I made the serial_recv() function return a -1 instead of bailing out with exit(1) upon encountering a receive timeout (currently only done in the Posix implementation). Both measures together allow me to receive a datastreem from the ICE at 115 kbps on a somewhat lossy PCI multi-UART card that occasionally drops a character. The JTAG ICE mkII protocol has enough of safety layers to allow recovering from these events, but the previous code wasn't prepared for any kind of recovery. The Win32 change for this still has to be done, and the traditional drivers need to be converted to exit(1) upon encountering a timeout (as they're now getting a -1 returned they didn't see before in that case). git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@451 81a1dc3b-b13d-400b-aceb-764788c761c2
2005-05-10 19:17:12 +00:00
long serial_recv_timeout = 5000; /* ms */
#define W32SERBUFSIZE 1024
struct baud_mapping {
long baud;
DWORD speed;
};
/* HANDLE hComPort=INVALID_HANDLE_VALUE; */
static struct baud_mapping baud_lookup_table [] = {
{ 1200, CBR_1200 },
{ 2400, CBR_2400 },
{ 4800, CBR_4800 },
{ 9600, CBR_9600 },
{ 19200, CBR_19200 },
{ 38400, CBR_38400 },
{ 57600, CBR_57600 },
{ 115200, CBR_115200 },
{ 0, 0 } /* Terminator. */
};
static DWORD serial_baud_lookup(long baud)
{
struct baud_mapping *map = baud_lookup_table;
while (map->baud) {
if (map->baud == baud)
return map->speed;
map++;
}
fprintf(stderr, "%s: serial_baud_lookup(): unknown baud rate: %ld",
progname, baud);
exit(1);
}
static BOOL serial_w32SetTimeOut(HANDLE hComPort, DWORD timeout) // in ms
{
COMMTIMEOUTS ctmo;
ZeroMemory (&ctmo, sizeof(COMMTIMEOUTS));
ctmo.ReadIntervalTimeout = timeout;
ctmo.ReadTotalTimeoutMultiplier = timeout;
ctmo.ReadTotalTimeoutConstant = timeout;
return SetCommTimeouts(hComPort, &ctmo);
}
static int ser_setspeed(int fd, long baud)
{
DCB dcb;
Mega-commit to bring in both, the STK500v2 support from Erik Walthinsen, as well as JTAG ICE mkII support (by me). Erik's submission has been cleaned up a little bit, mostly to add his name and the current year to the copyright of the new file, remove trailing white space before importing the files, and fix the minor syntax errors in his avrdude.conf.in additions (missing semicolons). The JTAG ICE mkII support should be considered alpha to beta quality at this point. Few things are still to be done, like defering the hfuse (OCDEN) tweaks until they are really required. Also, for reasons not yet known, the target MCU doesn't start to run after signing off from the ICE, it needs a power-cycle first (at least on my STK500). Note that for the JTAG ICE, I did change a few things in the internal API. Notably I made the serial receive timeout configurable by the backends via an exported variable (done in both the Posix and the Win32 implementation), and I made the serial_recv() function return a -1 instead of bailing out with exit(1) upon encountering a receive timeout (currently only done in the Posix implementation). Both measures together allow me to receive a datastreem from the ICE at 115 kbps on a somewhat lossy PCI multi-UART card that occasionally drops a character. The JTAG ICE mkII protocol has enough of safety layers to allow recovering from these events, but the previous code wasn't prepared for any kind of recovery. The Win32 change for this still has to be done, and the traditional drivers need to be converted to exit(1) upon encountering a timeout (as they're now getting a -1 returned they didn't see before in that case). git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@451 81a1dc3b-b13d-400b-aceb-764788c761c2
2005-05-10 19:17:12 +00:00
HANDLE hComPort = (HANDLE)fd;
ZeroMemory (&dcb, sizeof(DCB));
dcb.DCBlength = sizeof(DCB);
dcb.BaudRate = serial_baud_lookup (baud);
dcb.fBinary = 1;
dcb.fDtrControl = DTR_CONTROL_DISABLE;
dcb.fRtsControl = RTS_CONTROL_DISABLE;
dcb.ByteSize = 8;
dcb.Parity = NOPARITY;
dcb.StopBits = ONESTOPBIT;
if (!SetCommState(hComPort, &dcb))
return -1;
return 0;
}
static int ser_open(char * port, long baud)
Mega-commit to bring in both, the STK500v2 support from Erik Walthinsen, as well as JTAG ICE mkII support (by me). Erik's submission has been cleaned up a little bit, mostly to add his name and the current year to the copyright of the new file, remove trailing white space before importing the files, and fix the minor syntax errors in his avrdude.conf.in additions (missing semicolons). The JTAG ICE mkII support should be considered alpha to beta quality at this point. Few things are still to be done, like defering the hfuse (OCDEN) tweaks until they are really required. Also, for reasons not yet known, the target MCU doesn't start to run after signing off from the ICE, it needs a power-cycle first (at least on my STK500). Note that for the JTAG ICE, I did change a few things in the internal API. Notably I made the serial receive timeout configurable by the backends via an exported variable (done in both the Posix and the Win32 implementation), and I made the serial_recv() function return a -1 instead of bailing out with exit(1) upon encountering a receive timeout (currently only done in the Posix implementation). Both measures together allow me to receive a datastreem from the ICE at 115 kbps on a somewhat lossy PCI multi-UART card that occasionally drops a character. The JTAG ICE mkII protocol has enough of safety layers to allow recovering from these events, but the previous code wasn't prepared for any kind of recovery. The Win32 change for this still has to be done, and the traditional drivers need to be converted to exit(1) upon encountering a timeout (as they're now getting a -1 returned they didn't see before in that case). git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@451 81a1dc3b-b13d-400b-aceb-764788c761c2
2005-05-10 19:17:12 +00:00
{
LPVOID lpMsgBuf;
HANDLE hComPort=INVALID_HANDLE_VALUE;
/* if (hComPort!=INVALID_HANDLE_VALUE)
fprintf(stderr, "%s: ser_open(): \"%s\" is already open\n",
progname, port);
*/
hComPort = CreateFile(port, GENERIC_READ | GENERIC_WRITE, 0, NULL,
OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (hComPort == INVALID_HANDLE_VALUE) {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPTSTR) &lpMsgBuf,
0,
NULL);
fprintf(stderr, "%s: ser_open(): can't open device \"%s\": %s\n",
progname, port, (char*)lpMsgBuf);
LocalFree( lpMsgBuf );
exit(1);
}
if (!SetupComm(hComPort, W32SERBUFSIZE, W32SERBUFSIZE))
{
CloseHandle(hComPort);
fprintf(stderr, "%s: ser_open(): can't set buffers for \"%s\"\n",
progname, port);
exit(1);
}
if (ser_setspeed((int)hComPort, baud) != 0)
{
CloseHandle(hComPort);
fprintf(stderr, "%s: ser_open(): can't set com-state for \"%s\"\n",
progname, port);
exit(1);
}
if (!serial_w32SetTimeOut(hComPort,0))
{
CloseHandle(hComPort);
fprintf(stderr, "%s: ser_open(): can't set initial timeout for \"%s\"\n",
progname, port);
exit(1);
}
return (int)hComPort;
}
static void ser_close(int fd)
{
HANDLE hComPort=(HANDLE)fd;
if (hComPort != INVALID_HANDLE_VALUE)
CloseHandle (hComPort);
hComPort = INVALID_HANDLE_VALUE;
}
static int ser_send(int fd, char * buf, size_t buflen)
{
size_t len = buflen;
unsigned char c='\0';
DWORD written;
HANDLE hComPort=(HANDLE)fd;
if (hComPort == INVALID_HANDLE_VALUE) {
fprintf(stderr, "%s: ser_send(): port not open\n",
progname);
exit(1);
}
if (!len)
return 0;
if (verbose > 3)
{
fprintf(stderr, "%s: Send: ", progname);
while (buflen) {
c = *buf;
if (isprint(c)) {
fprintf(stderr, "%c ", c);
}
else {
fprintf(stderr, ". ");
}
fprintf(stderr, "[%02x] ", c);
buf++;
buflen--;
}
fprintf(stderr, "\n");
}
serial_w32SetTimeOut(hComPort,500);
if (!WriteFile (hComPort, buf, buflen, &written, NULL)) {
fprintf(stderr, "%s: ser_send(): write error: %s\n",
progname, "sorry no info avail"); // TODO
exit(1);
}
if (written != buflen) {
fprintf(stderr, "%s: ser_send(): size/send mismatch\n",
progname);
exit(1);
}
return 0;
}
static int ser_recv(int fd, char * buf, size_t buflen)
{
unsigned char c;
char * p = buf;
size_t len = 0;
DWORD read;
HANDLE hComPort=(HANDLE)fd;
if (hComPort == INVALID_HANDLE_VALUE) {
fprintf(stderr, "%s: ser_read(): port not open\n",
progname);
exit(1);
}
Mega-commit to bring in both, the STK500v2 support from Erik Walthinsen, as well as JTAG ICE mkII support (by me). Erik's submission has been cleaned up a little bit, mostly to add his name and the current year to the copyright of the new file, remove trailing white space before importing the files, and fix the minor syntax errors in his avrdude.conf.in additions (missing semicolons). The JTAG ICE mkII support should be considered alpha to beta quality at this point. Few things are still to be done, like defering the hfuse (OCDEN) tweaks until they are really required. Also, for reasons not yet known, the target MCU doesn't start to run after signing off from the ICE, it needs a power-cycle first (at least on my STK500). Note that for the JTAG ICE, I did change a few things in the internal API. Notably I made the serial receive timeout configurable by the backends via an exported variable (done in both the Posix and the Win32 implementation), and I made the serial_recv() function return a -1 instead of bailing out with exit(1) upon encountering a receive timeout (currently only done in the Posix implementation). Both measures together allow me to receive a datastreem from the ICE at 115 kbps on a somewhat lossy PCI multi-UART card that occasionally drops a character. The JTAG ICE mkII protocol has enough of safety layers to allow recovering from these events, but the previous code wasn't prepared for any kind of recovery. The Win32 change for this still has to be done, and the traditional drivers need to be converted to exit(1) upon encountering a timeout (as they're now getting a -1 returned they didn't see before in that case). git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@451 81a1dc3b-b13d-400b-aceb-764788c761c2
2005-05-10 19:17:12 +00:00
serial_w32SetTimeOut(hComPort, serial_recv_timeout);
if (!ReadFile(hComPort, buf, buflen, &read, NULL)) {
LPVOID lpMsgBuf;
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPTSTR) &lpMsgBuf,
0,
NULL );
fprintf(stderr, "%s: ser_recv(): read error: %s\n",
progname, (char*)lpMsgBuf);
LocalFree( lpMsgBuf );
exit(1);
}
p = buf;
if (verbose > 3)
{
fprintf(stderr, "%s: Recv: ", progname);
while (len) {
c = *p;
if (isprint(c)) {
fprintf(stderr, "%c ", c);
}
else {
fprintf(stderr, ". ");
}
fprintf(stderr, "[%02x] ", c);
p++;
len--;
}
fprintf(stderr, "\n");
}
return 0;
}
static int ser_drain(int fd, int display)
{
// int rc;
unsigned char buf[10];
BOOL readres;
DWORD read;
HANDLE hComPort=(HANDLE)fd;
if (hComPort == INVALID_HANDLE_VALUE) {
fprintf(stderr, "%s: ser_drain(): port not open\n",
progname);
exit(1);
}
serial_w32SetTimeOut(hComPort,250);
if (display) {
fprintf(stderr, "drain>");
}
while (1) {
readres=ReadFile(hComPort, buf, 1, &read, NULL);
if (!readres) {
LPVOID lpMsgBuf;
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPTSTR) &lpMsgBuf,
0,
NULL );
fprintf(stderr, "%s: ser_drain(): read error: %s\n",
progname, (char*)lpMsgBuf);
LocalFree( lpMsgBuf );
exit(1);
}
if (read) { // data avail
if (display) fprintf(stderr, "%02x ", buf[0]);
}
else { // no more data
if (display) fprintf(stderr, "<drain\n");
break;
}
} // while
return 0;
}
struct serial_device serial_serdev =
{
.open = ser_open,
.setspeed = ser_setspeed,
.close = ser_close,
.send = ser_send,
.recv = ser_recv,
.drain = ser_drain,
};
struct serial_device *serdev = &serial_serdev;
#endif /* WIN32NATIVE */