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avrdude/src/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>
* Copyright (C) 2006 Joerg Wunsch <j@uriah.heep.sax.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, see <http://www.gnu.org/licenses/>.
*/
/*
* Native Win32 serial interface for avrdude.
*/
#include "ac_cfg.h"
#if defined(WIN32)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <winsock2.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h> /* for isprint */
#include <errno.h> /* ENOTTY */
#include "avrdude.h"
#include "libavrdude.h"
long serial_recv_timeout = 5000; /* ms */
long serial_drain_timeout = 250; /* ms */
#define W32SERBUFSIZE 1024
struct baud_mapping {
long baud;
DWORD speed;
};
static unsigned char serial_over_ethernet = 0;
/* HANDLE hComPort=INVALID_HANDLE_VALUE; */
static struct baud_mapping baud_lookup_table [] = {
{ 300, CBR_300 },
{ 600, CBR_600 },
{ 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++;
}
/*
* If a non-standard BAUD rate is used, issue
* a warning (if we are verbose) and return the raw rate
*/
pmsg_notice("serial_baud_lookup(): using non-standard baud rate: %ld", baud);
return baud;
}
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_setparams(const union filedescriptor *fd, long baud, unsigned long cflags) {
if (serial_over_ethernet) {
return -ENOTTY;
} else {
DCB dcb;
HANDLE hComPort = (HANDLE)fd->pfd;
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;
switch ((cflags & (SERIAL_CS5 | SERIAL_CS6 | SERIAL_CS7 | SERIAL_CS8))) {
case SERIAL_CS5:
dcb.ByteSize = 5;
break;
case SERIAL_CS6:
dcb.ByteSize = 6;
break;
case SERIAL_CS7:
dcb.ByteSize = 7;
break;
case SERIAL_CS8:
dcb.ByteSize = 8;
break;
}
switch ((cflags & (SERIAL_NO_PARITY | SERIAL_PARENB | SERIAL_PARODD))) {
case SERIAL_NO_PARITY:
dcb.Parity = NOPARITY;
break;
case SERIAL_PARENB:
dcb.Parity = EVENPARITY;
break;
case SERIAL_PARODD:
dcb.Parity = ODDPARITY;
break;
}
switch ((cflags & (SERIAL_NO_CSTOPB | SERIAL_CSTOPB))) {
case SERIAL_NO_CSTOPB:
dcb.StopBits = ONESTOPBIT;
break;
case SERIAL_CSTOPB:
dcb.StopBits = TWOSTOPBITS;
break;
}
if (!SetCommState(hComPort, &dcb))
return -1;
return 0;
}
}
static int net_open(const char *port, union filedescriptor *fdp) {
WSADATA wsaData;
LPVOID lpMsgBuf;
char *hstr, *pstr, *end;
unsigned int pnum;
int fd;
struct sockaddr_in sockaddr;
struct hostent *hp;
if (WSAStartup(MAKEWORD(2, 0), &wsaData) != 0) {
pmsg_error("WSAStartup() failed\n");
return -1;
}
if ((hstr = strdup(port)) == NULL) {
pmsg_error("out of memory\n");
return -1;
}
if (((pstr = strchr(hstr, ':')) == NULL) || (pstr == hstr)) {
pmsg_error("mangled host:port string %s\n", hstr);
free(hstr);
return -1;
}
/*
* Terminate the host section of the description.
*/
*pstr++ = '\0';
pnum = strtoul(pstr, &end, 10);
if ((*pstr == '\0') || (*end != '\0') || (pnum == 0) || (pnum > 65535)) {
pmsg_error("bad port number %s\n", pstr);
free(hstr);
return -1;
}
if ((hp = gethostbyname(hstr)) == NULL) {
pmsg_error("unknown host %s\n", hstr);
free(hstr);
return -1;
}
free(hstr);
if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
WSAGetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL);
pmsg_error("cannot open socket: %s\n", (char *) lpMsgBuf);
LocalFree(lpMsgBuf);
return -1;
}
memset(&sockaddr, 0, sizeof(struct sockaddr_in));
sockaddr.sin_family = AF_INET;
sockaddr.sin_port = htons(pnum);
memcpy(&(sockaddr.sin_addr.s_addr), hp->h_addr, sizeof(struct in_addr));
if (connect(fd, (struct sockaddr *)&sockaddr, sizeof(sockaddr))) {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
WSAGetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL);
pmsg_error("connect failed: %s\n", (char *) lpMsgBuf);
LocalFree(lpMsgBuf);
return -1;
}
fdp->ifd = fd;
serial_over_ethernet = 1;
return 0;
}
static int ser_open(const char *port, union pinfo pinfo, union filedescriptor *fdp) {
LPVOID lpMsgBuf;
HANDLE hComPort=INVALID_HANDLE_VALUE;
char *newname = 0;
/*
* If the port is of the form "net:<host>:<port>", then
* handle it as a TCP connection to a terminal server.
*/
if (strncmp(port, "net:", strlen("net:")) == 0) {
return net_open(port + strlen("net:"), fdp);
}
if (strncasecmp(port, "com", strlen("com")) == 0) {
// prepend "\\\\.\\" to name, required for port # >= 10
newname = malloc(strlen("\\\\.\\") + strlen(port) + 1);
if (newname == 0) {
pmsg_error("out of memory\n");
exit(1);
}
strcpy(newname, "\\\\.\\");
strcat(newname, port);
port = newname;
}
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);
pmsg_error("cannot open port %s: %s\n", port, (char*) lpMsgBuf);
LocalFree( lpMsgBuf );
return -1;
}
if (!SetupComm(hComPort, W32SERBUFSIZE, W32SERBUFSIZE))
{
CloseHandle(hComPort);
pmsg_error("cannot set buffers for %s\n", port);
return -1;
}
fdp->pfd = (void *)hComPort;
if (ser_setparams(fdp, pinfo.serialinfo.baud, pinfo.serialinfo.cflags) != 0)
{
CloseHandle(hComPort);
pmsg_error("cannot set com-state for %s\n", port);
return -1;
}
if (!serial_w32SetTimeOut(hComPort,0))
{
CloseHandle(hComPort);
pmsg_error("cannot set initial timeout for %s\n", port);
return -1;
}
if (newname != 0) {
free(newname);
}
return 0;
}
static void ser_close(union filedescriptor *fd) {
if (serial_over_ethernet) {
closesocket(fd->ifd);
WSACleanup();
} else {
HANDLE hComPort=(HANDLE)fd->pfd;
if (hComPort != INVALID_HANDLE_VALUE)
CloseHandle (hComPort);
hComPort = INVALID_HANDLE_VALUE;
}
}
static int ser_set_dtr_rts(const union filedescriptor *fd, int is_on) {
if (serial_over_ethernet) {
return 0;
} else {
HANDLE hComPort=(HANDLE)fd->pfd;
if (is_on) {
EscapeCommFunction(hComPort, SETDTR);
EscapeCommFunction(hComPort, SETRTS);
} else {
EscapeCommFunction(hComPort, CLRDTR);
EscapeCommFunction(hComPort, CLRRTS);
}
return 0;
}
}
static int net_send(const union filedescriptor *fd, const unsigned char * buf, size_t buflen) {
LPVOID lpMsgBuf;
int rc;
const unsigned char *p = buf;
size_t len = buflen;
if (fd->ifd < 0) {
pmsg_notice("net_send(): connection not open\n");
exit(1);
}
if (!len) {
return 0;
}
if (verbose > 3) {
pmsg_trace("send: ");
while (buflen) {
unsigned char c = *buf;
if (isprint(c)) {
msg_trace("%c ", c);
} else {
msg_trace(". ");
}
msg_trace("[%02x] ", c);
buf++;
buflen--;
}
msg_trace("\n");
}
while (len) {
rc = send(fd->ifd, (const char *) p, (len > 1024)? 1024: len, 0);
if (rc < 0) {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
WSAGetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL);
pmsg_error("unable to send: %s\n", (char *) lpMsgBuf);
LocalFree(lpMsgBuf);
exit(1);
}
p += rc;
len -= rc;
}
return 0;
}
static int ser_send(const union filedescriptor *fd, const unsigned char * buf, size_t buflen) {
if (serial_over_ethernet) {
return net_send(fd, buf, buflen);
}
size_t len = buflen;
unsigned char c='\0';
DWORD written;
const unsigned char * b = buf;
HANDLE hComPort=(HANDLE)fd->pfd;
if (hComPort == INVALID_HANDLE_VALUE) {
pmsg_error("port not open\n");
return -1;
}
if (!len)
return 0;
if (verbose > 3)
{
pmsg_trace("send: ");
while (len) {
c = *b;
if (isprint(c)) {
msg_trace("%c ", c);
}
else {
msg_trace(". ");
}
msg_trace("[%02x] ", c);
b++;
len--;
}
msg_trace("\n");
}
serial_w32SetTimeOut(hComPort,500);
if (!WriteFile (hComPort, buf, buflen, &written, NULL)) {
pmsg_error("unable to write: %s\n", "sorry no info avail"); // TODO
return -1;
}
if (written != buflen) {
pmsg_error("size/send mismatch\n");
return -1;
}
return 0;
}
static int net_recv(const union filedescriptor *fd, unsigned char * buf, size_t buflen) {
LPVOID lpMsgBuf;
struct timeval timeout, to2;
fd_set rfds;
int nfds;
int rc;
unsigned char *p = buf;
size_t len = 0;
if (fd->ifd < 0) {
pmsg_error("connection not open\n");
exit(1);
}
timeout.tv_sec = serial_recv_timeout / 1000L;
timeout.tv_usec = (serial_recv_timeout % 1000L) * 1000;
to2 = timeout;
while (len < buflen) {
reselect:
FD_ZERO(&rfds);
FD_SET(fd->ifd, &rfds);
nfds = select(fd->ifd + 1, &rfds, NULL, NULL, &to2);
if (nfds == 0) {
if (verbose > 1) {
pmsg_notice("ser_recv(): programmer is not responding\n");
}
return -1;
} else if (nfds == -1) {
if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEINPROGRESS) {
pmsg_notice("ser_recv(): programmer is not responding, reselecting\n");
goto reselect;
} else {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
WSAGetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL);
pmsg_error("select(): %s\n", (char *) lpMsgBuf);
LocalFree(lpMsgBuf);
exit(1);
}
}
rc = recv(fd->ifd, (char *) p, (buflen - len > 1024)? 1024: buflen - len, 0);
if (rc < 0) {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
WSAGetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL);
pmsg_error("unable to read: %s\n", (char *) lpMsgBuf);
LocalFree(lpMsgBuf);
exit(1);
}
p += rc;
len += rc;
}
p = buf;
if (verbose > 3) {
pmsg_trace("Recv: ");
while (len) {
unsigned char c = *p;
if (isprint(c)) {
msg_trace("%c ", c);
} else {
msg_trace(". ");
}
msg_trace("[%02x] ", c);
p++;
len--;
}
msg_trace("\n");
}
return 0;
}
static int ser_recv(const union filedescriptor *fd, unsigned char * buf, size_t buflen) {
if (serial_over_ethernet) {
return net_recv(fd, buf, buflen);
}
unsigned char c;
unsigned char * p = buf;
DWORD read;
HANDLE hComPort=(HANDLE)fd->pfd;
if (hComPort == INVALID_HANDLE_VALUE) {
pmsg_error("port not open\n");
return -1;
}
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 );
pmsg_error("unable to read: %s\n", (char*) lpMsgBuf);
LocalFree( lpMsgBuf );
return -1;
}
/* time out detected */
if (read == 0) {
pmsg_notice2("ser_recv(): programmer is not responding\n");
return -1;
}
p = buf;
if (verbose > 3)
{
pmsg_trace("recv: ");
while (read) {
c = *p;
if (isprint(c)) {
msg_trace("%c ", c);
}
else {
msg_trace(". ");
}
msg_trace("[%02x] ", c);
p++;
read--;
}
msg_trace("\n");
}
return 0;
}
static int net_drain(const union filedescriptor *fd, int display) {
LPVOID lpMsgBuf;
struct timeval timeout;
fd_set rfds;
int nfds;
unsigned char buf;
int rc;
if (fd->ifd < 0) {
pmsg_error("connection not open\n");
exit(1);
}
if (display) {
msg_info("drain>");
}
timeout.tv_sec = 0;
timeout.tv_usec = serial_drain_timeout*1000L;
while (1) {
FD_ZERO(&rfds);
FD_SET(fd->ifd, &rfds);
reselect:
nfds = select(fd->ifd + 1, &rfds, NULL, NULL, &timeout);
if (nfds == 0) {
if (display) {
msg_info("<drain\n");
}
break;
}
else if (nfds == -1) {
if (WSAGetLastError() == WSAEINTR || WSAGetLastError() == WSAEINPROGRESS) {
pmsg_notice("ser_drain(): programmer is not responding, reselecting\n");
goto reselect;
} else {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
WSAGetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL);
pmsg_error("select(): %s\n", (char *) lpMsgBuf);
LocalFree(lpMsgBuf);
exit(1);
}
}
rc = recv(fd->ifd, (char *) &buf, 1, 0);
if (rc < 0) {
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
WSAGetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&lpMsgBuf,
0,
NULL);
pmsg_error("unable to read: %s\n", (char *) lpMsgBuf);
LocalFree(lpMsgBuf);
exit(1);
}
if (display) {
msg_info("%02x ", buf);
}
}
return 0;
}
static int ser_drain(const union filedescriptor *fd, int display) {
if (serial_over_ethernet) {
return net_drain(fd, display);
}
// int rc;
unsigned char buf[10];
BOOL readres;
DWORD read;
HANDLE hComPort=(HANDLE)fd->pfd;
if (hComPort == INVALID_HANDLE_VALUE) {
pmsg_error("port not open\n");
return -1;
}
serial_w32SetTimeOut(hComPort, serial_drain_timeout);
if (display) {
msg_info("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 );
pmsg_error("unable to read: %s\n", (char*) lpMsgBuf);
LocalFree( lpMsgBuf );
return -1;
}
if (read) { // data avail
if (display)
msg_info("%02x ", buf[0]);
}
else { // no more data
if (display)
msg_info("<drain\n");
break;
}
} // while
return 0;
}
struct serial_device serial_serdev =
{
.open = ser_open,
.setparams = ser_setparams,
.close = ser_close,
.send = ser_send,
.recv = ser_recv,
.drain = ser_drain,
.set_dtr_rts = ser_set_dtr_rts,
.flags = SERDEV_FL_CANSETSPEED,
};
struct serial_device *serdev = &serial_serdev;
#endif /* WIN32 */
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