/* * avrdude - A Downloader/Uploader for AVR device programmers * Copyright (C) 2003, 2004 Martin J. Thomas * Copyright (C) 2005 Michael Holzt * Copyright (C) 2005 Joerg Wunsch * * 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 */ /* $Id$ */ /* * Win32 serial bitbanging interface for avrdude. */ #if defined(WIN32NATIVE) #include "ac_cfg.h" #include #include #include "avr.h" #include "pindefs.h" #include "pgm.h" #include "bitbang.h" extern char *progname; extern int verbose; /* cached status lines */ static int dtr, rts, txd; #define W32SERBUFSIZE 1024 /* serial port/pin mapping 1 cd <- 2 rxd <- 3 txd -> 4 dtr -> 5 dsr <- 6 rts -> 7 cts <- Negative pin # means negated value. */ static int serbb_setpin(PROGRAMMER * pgm, int pin, int value) { HANDLE hComPort = (HANDLE)pgm->fd; LPVOID lpMsgBuf; DWORD dwFunc; const char *name; if (pin & PIN_INVERSE) { value = !value; pin &= PIN_MASK; } if (pin < 1 || pin > 7) return -1; pin--; switch (pin) { case 2: /* txd */ dwFunc = value? SETBREAK: CLRBREAK; name = value? "SETBREAK": "CLRBREAK"; txd = value; break; case 3: /* dtr */ dwFunc = value? SETDTR: CLRDTR; name = value? "SETDTR": "CLRDTR"; dtr = value; break; case 5: /* rts */ dwFunc = value? SETRTS: CLRRTS; name = value? "SETRTS": "CLRRTS"; break; default: if (verbose) fprintf(stderr, "%s: serbb_setpin(): unknown pin %d\n", progname, pin + 1); return -1; } if (verbose > 4) fprintf(stderr, "%s: serbb_setpin(): EscapeCommFunction(%s)\n", progname, name); if (!EscapeCommFunction(hComPort, dwFunc)) { 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: serbb_setpin(): SetCommState() failed: %s\n", progname, (char *)lpMsgBuf); CloseHandle(hComPort); LocalFree(lpMsgBuf); exit(1); } return 0; } static int serbb_getpin(PROGRAMMER * pgm, int pin) { HANDLE hComPort = (HANDLE)pgm->fd; LPVOID lpMsgBuf; int invert, rv; const char *name; DWORD modemstate; if (pin & PIN_INVERSE) { invert = 1; pin &= PIN_MASK; } else invert = 0; if (pin < 1 || pin > 7) return -1; pin --; if (pin == 0 /* cd */ || pin == 4 /* dsr */ || pin == 6 /* cts */) { if (!GetCommModemStatus(hComPort, &modemstate)) { 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: serbb_setpin(): GetCommModemStatus() failed: %s\n", progname, (char *)lpMsgBuf); CloseHandle(hComPort); LocalFree(lpMsgBuf); exit(1); } if (verbose > 4) fprintf(stderr, "%s: serbb_getpin(): GetCommState() => 0x%lx\n", progname, modemstate); switch (pin) { case 0: modemstate &= MS_RLSD_ON; break; case 4: modemstate &= MS_DSR_ON; break; case 6: modemstate &= MS_CTS_ON; break; } rv = modemstate != 0; if (invert) rv = !rv; return rv; } switch (pin) { case 2: /* txd */ rv = txd; name = "TXD"; break; case 3: /* dtr */ rv = dtr; name = "DTR"; break; case 5: /* rts */ rv = rts; name = "RTS"; break; default: if (verbose) fprintf(stderr, "%s: serbb_getpin(): unknown pin %d\n", progname, pin + 1); return -1; } if (verbose > 4) fprintf(stderr, "%s: serbb_getpin(): return cached state for %s\n", progname, name); if (invert) rv = !rv; return rv; } static int serbb_highpulsepin(PROGRAMMER * pgm, int pin) { if (pin < 1 || pin > 7) return -1; serbb_setpin(pgm, pin, 1); if (pgm->ispdelay > 1) bitbang_delay(pgm->ispdelay); serbb_setpin(pgm, pin, 0); if (pgm->ispdelay > 1) bitbang_delay(pgm->ispdelay); return 0; } static void serbb_display(PROGRAMMER *pgm, char *p) { /* MAYBE */ } static void serbb_enable(PROGRAMMER *pgm) { /* nothing */ } static void serbb_disable(PROGRAMMER *pgm) { /* nothing */ } static void serbb_powerup(PROGRAMMER *pgm) { /* nothing */ } static void serbb_powerdown(PROGRAMMER *pgm) { /* nothing */ } static int serbb_open(PROGRAMMER *pgm, char *port) { DCB dcb; LPVOID lpMsgBuf; HANDLE hComPort = INVALID_HANDLE_VALUE; 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); return -1; } if (!SetupComm(hComPort, W32SERBUFSIZE, W32SERBUFSIZE)) { CloseHandle(hComPort); fprintf(stderr, "%s: ser_open(): can't set buffers for \"%s\"\n", progname, port); return -1; } ZeroMemory(&dcb, sizeof(DCB)); dcb.DCBlength = sizeof(DCB); dcb.BaudRate = CBR_9600; 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)) { CloseHandle(hComPort); fprintf(stderr, "%s: ser_open(): can't set com-state for \"%s\"\n", progname, port); return -1; } if (verbose > 2) fprintf(stderr, "%s: ser_open(): opened comm port \"%s\", handle 0x%x\n", progname, port, (int)hComPort); pgm->fd = (int)hComPort; dtr = rts = txd = 0; return 0; } static void serbb_close(PROGRAMMER *pgm) { HANDLE hComPort=(HANDLE)pgm->fd; if (hComPort != INVALID_HANDLE_VALUE) CloseHandle (hComPort); if (verbose > 2) fprintf(stderr, "%s: ser_close(): closed comm port handle 0x%x\n", progname, (int)hComPort); hComPort = INVALID_HANDLE_VALUE; } void serbb_initpgm(PROGRAMMER *pgm) { strcpy(pgm->type, "SERBB"); pgm->rdy_led = bitbang_rdy_led; pgm->err_led = bitbang_err_led; pgm->pgm_led = bitbang_pgm_led; pgm->vfy_led = bitbang_vfy_led; pgm->initialize = bitbang_initialize; pgm->display = serbb_display; pgm->enable = serbb_enable; pgm->disable = serbb_disable; pgm->powerup = serbb_powerup; pgm->powerdown = serbb_powerdown; pgm->program_enable = bitbang_program_enable; pgm->chip_erase = bitbang_chip_erase; pgm->cmd = bitbang_cmd; pgm->open = serbb_open; pgm->close = serbb_close; pgm->setpin = serbb_setpin; pgm->getpin = serbb_getpin; pgm->highpulsepin = serbb_highpulsepin; } #endif /* WIN32NATIVE */