373 lines
9.8 KiB
C
373 lines
9.8 KiB
C
/*
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* avrdude - A Downloader/Uploader for AVR device programmers
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* Copyright (C) 2003, 2004 Martin J. Thomas <mthomas@rhrk.uni-kl.de>
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* Copyright (C) 2005 Michael Holzt <kju-avr@fqdn.org>
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* Copyright (C) 2005 Joerg Wunsch <j@uriah.heep.sax.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* $Id$ */
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/*
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* Win32 serial bitbanging interface for avrdude.
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*/
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#if defined(WIN32NATIVE)
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#include "ac_cfg.h"
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#include <windows.h>
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#include <stdio.h>
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#include "avr.h"
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#include "pindefs.h"
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#include "pgm.h"
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#include "bitbang.h"
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extern char *progname;
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extern int verbose;
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/* cached status lines */
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static int dtr, rts, txd;
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#define W32SERBUFSIZE 1024
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/*
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serial port/pin mapping
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1 cd <-
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2 rxd <-
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3 txd ->
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4 dtr ->
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5 dsr <-
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6 rts ->
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7 cts <-
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Negative pin # means negated value.
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*/
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void serbb_setpin(int fd, int pin, int value)
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{
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HANDLE hComPort = (HANDLE)fd;
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LPVOID lpMsgBuf;
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DWORD dwFunc;
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const char *name;
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if (pin & PIN_INVERSE)
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{
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value = !value;
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pin &= PIN_MASK;
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}
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if (pin < 1 || pin > 7)
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return;
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pin--;
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switch (pin)
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{
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case 2: /* txd */
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dwFunc = value? SETBREAK: CLRBREAK;
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name = value? "SETBREAK": "CLRBREAK";
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txd = value;
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break;
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case 3: /* dtr */
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dwFunc = value? SETDTR: CLRDTR;
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name = value? "SETDTR": "CLRDTR";
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dtr = value;
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break;
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case 5: /* rts */
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dwFunc = value? SETRTS: CLRRTS;
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name = value? "SETRTS": "CLRRTS";
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break;
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default:
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if (verbose)
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fprintf(stderr,
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"%s: serbb_setpin(): unknown pin %d\n",
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progname, pin + 1);
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return;
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}
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if (verbose > 4)
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fprintf(stderr,
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"%s: serbb_setpin(): EscapeCommFunction(%s)\n",
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progname, name);
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if (!EscapeCommFunction(hComPort, dwFunc))
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{
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FormatMessage(
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FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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GetLastError(),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
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(LPTSTR) &lpMsgBuf,
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0,
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NULL);
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fprintf(stderr,
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"%s: serbb_setpin(): SetCommState() failed: %s\n",
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progname, (char *)lpMsgBuf);
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CloseHandle(hComPort);
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LocalFree(lpMsgBuf);
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exit(1);
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}
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return;
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}
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int serbb_getpin(int fd, int pin)
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{
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HANDLE hComPort = (HANDLE)fd;
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LPVOID lpMsgBuf;
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int invert, rv;
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const char *name;
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DWORD modemstate;
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if (pin & PIN_INVERSE)
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{
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invert = 1;
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pin &= PIN_MASK;
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} else
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invert = 0;
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if (pin < 1 || pin > 7)
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return -1;
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pin --;
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if (pin == 0 /* cd */ || pin == 4 /* dsr */ || pin == 6 /* cts */)
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{
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if (!GetCommModemStatus(hComPort, &modemstate))
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{
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FormatMessage(
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FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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GetLastError(),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
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(LPTSTR) &lpMsgBuf,
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0,
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NULL);
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fprintf(stderr,
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"%s: serbb_setpin(): GetCommModemStatus() failed: %s\n",
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progname, (char *)lpMsgBuf);
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CloseHandle(hComPort);
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LocalFree(lpMsgBuf);
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exit(1);
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}
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if (verbose > 4)
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fprintf(stderr,
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"%s: serbb_getpin(): GetCommState() => 0x%lx\n",
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progname, modemstate);
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switch (pin)
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{
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case 0:
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modemstate &= MS_RLSD_ON;
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break;
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case 4:
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modemstate &= MS_DSR_ON;
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break;
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case 6:
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modemstate &= MS_CTS_ON;
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break;
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}
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rv = modemstate != 0;
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if (invert)
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rv = !rv;
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return rv;
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}
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switch (pin)
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{
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case 2: /* txd */
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rv = txd;
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name = "TXD";
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break;
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case 3: /* dtr */
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rv = dtr;
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name = "DTR";
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break;
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case 5: /* rts */
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rv = rts;
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name = "RTS";
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break;
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default:
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if (verbose)
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fprintf(stderr,
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"%s: serbb_getpin(): unknown pin %d\n",
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progname, pin + 1);
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return -1;
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}
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if (verbose > 4)
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fprintf(stderr,
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"%s: serbb_getpin(): return cached state for %s\n",
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progname, name);
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if (invert)
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rv = !rv;
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return rv;
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}
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int serbb_highpulsepin(int fd, int pin)
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{
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if (pin < 1 || pin > 7)
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return -1;
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serbb_setpin(fd, pin, 1);
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#if SLOW_TOGGLE
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usleep(1000);
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#endif
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serbb_setpin(fd, pin, 0);
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#if SLOW_TOGGLE
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usleep(1000);
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#endif
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return 0;
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}
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void serbb_display(PROGRAMMER *pgm, char *p)
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{
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/* MAYBE */
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}
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void serbb_enable(PROGRAMMER *pgm)
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{
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/* nothing */
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}
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void serbb_disable(PROGRAMMER *pgm)
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{
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/* nothing */
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}
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void serbb_powerup(PROGRAMMER *pgm)
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{
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/* nothing */
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}
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void serbb_powerdown(PROGRAMMER *pgm)
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{
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/* nothing */
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}
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int serbb_open(PROGRAMMER *pgm, char *port)
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{
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DCB dcb;
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LPVOID lpMsgBuf;
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HANDLE hComPort = INVALID_HANDLE_VALUE;
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hComPort = CreateFile(port, GENERIC_READ | GENERIC_WRITE, 0, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hComPort == INVALID_HANDLE_VALUE) {
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FormatMessage(
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FORMAT_MESSAGE_ALLOCATE_BUFFER |
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FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL,
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GetLastError(),
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
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(LPTSTR) &lpMsgBuf,
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0,
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NULL);
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fprintf(stderr, "%s: ser_open(): can't open device \"%s\": %s\n",
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progname, port, (char*)lpMsgBuf);
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LocalFree(lpMsgBuf);
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return -1;
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}
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if (!SetupComm(hComPort, W32SERBUFSIZE, W32SERBUFSIZE))
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{
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CloseHandle(hComPort);
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fprintf(stderr, "%s: ser_open(): can't set buffers for \"%s\"\n",
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progname, port);
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return -1;
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}
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ZeroMemory(&dcb, sizeof(DCB));
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dcb.DCBlength = sizeof(DCB);
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dcb.BaudRate = CBR_9600;
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dcb.fBinary = 1;
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dcb.fDtrControl = DTR_CONTROL_DISABLE;
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dcb.fRtsControl = RTS_CONTROL_DISABLE;
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dcb.ByteSize = 8;
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dcb.Parity = NOPARITY;
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dcb.StopBits = ONESTOPBIT;
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if (!SetCommState(hComPort, &dcb))
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{
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CloseHandle(hComPort);
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fprintf(stderr, "%s: ser_open(): can't set com-state for \"%s\"\n",
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progname, port);
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return -1;
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}
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if (verbose > 2)
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fprintf(stderr,
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"%s: ser_open(): opened comm port \"%s\", handle 0x%x\n",
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progname, port, (int)hComPort);
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pgm->fd = (int)hComPort;
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dtr = rts = txd = 0;
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return 0;
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}
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void serbb_close(PROGRAMMER *pgm)
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{
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HANDLE hComPort=(HANDLE)pgm->fd;
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if (hComPort != INVALID_HANDLE_VALUE)
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CloseHandle (hComPort);
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if (verbose > 2)
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fprintf(stderr,
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"%s: ser_close(): closed comm port handle 0x%x\n",
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progname, (int)hComPort);
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hComPort = INVALID_HANDLE_VALUE;
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}
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void serbb_initpgm(PROGRAMMER *pgm)
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{
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strcpy(pgm->type, "SERBB");
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pgm->rdy_led = bitbang_rdy_led;
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pgm->err_led = bitbang_err_led;
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pgm->pgm_led = bitbang_pgm_led;
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pgm->vfy_led = bitbang_vfy_led;
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pgm->initialize = bitbang_initialize;
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pgm->display = serbb_display;
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pgm->enable = serbb_enable;
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pgm->disable = serbb_disable;
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pgm->powerup = serbb_powerup;
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pgm->powerdown = serbb_powerdown;
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pgm->program_enable = bitbang_program_enable;
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pgm->chip_erase = bitbang_chip_erase;
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pgm->cmd = bitbang_cmd;
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pgm->open = serbb_open;
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pgm->close = serbb_close;
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/* this is a serial port bitbang device */
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pgm->flag = 1;
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}
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#endif /* WIN32NATIVE */
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