418 lines
8.5 KiB
C
418 lines
8.5 KiB
C
/*
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* avrdude - A Downloader/Uploader for AVR device programmers
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* Copyright (C) 2003, 2004, 2006
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* Eric B. Weddington <eweddington@cso.atmel.com>
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* Copyright 2008, Joerg Wunsch
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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, see <http://www.gnu.org/licenses/>.
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*/
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/* $Id$ */
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/*
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This is the parallel port interface for Windows built using Cygwin.
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In the ppi_* functions that access the parallel port registers,
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fd = parallel port address
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reg = register as defined in an enum in ppi.h. This must be converted
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to a proper offset of the base address.
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*/
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#include "ac_cfg.h"
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#if defined (WIN32NATIVE)
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <windows.h>
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#include <sys/time.h>
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#include <windows.h>
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#include "avrdude.h"
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#include "libavrdude.h"
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#include "ppi.h"
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#define DEVICE_LPT1 "lpt1"
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#define DEVICE_LPT2 "lpt2"
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#define DEVICE_LPT3 "lpt3"
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#define DEVICE_MAX 3
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typedef struct
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{
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const char *name;
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int base_address;
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} winpp;
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static const winpp winports[DEVICE_MAX] =
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{
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{DEVICE_LPT1, 0x378},
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{DEVICE_LPT2, 0x278},
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{DEVICE_LPT3, 0x3BC},
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};
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/* FUNCTION PROTOTYPES */
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static int winnt_pp_open(void);
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static unsigned short port_get(union filedescriptor *fdp, int reg);
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static unsigned char reg2offset(int reg);
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static unsigned char inb(unsigned short port);
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static void outb(unsigned char value, unsigned short port);
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/* FUNCTION DEFINITIONS */
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void ppi_open(char *port, union filedescriptor *fdp)
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{
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unsigned char i;
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int fd;
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fd = winnt_pp_open();
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if(fd < 0)
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{
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avrdude_message(MSG_INFO, "%s: can't open device \"giveio\"\n\n", progname);
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fdp->ifd = -1;
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return;
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}
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/* Search the windows port names for a match */
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fd = -1;
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for(i = 0; i < DEVICE_MAX; i++)
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{
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if(strcmp(winports[i].name, port) == 0)
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{
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/* Set the file descriptor with the Windows parallel port base address. */
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fd = winports[i].base_address;
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break;
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}
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}
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if(fd == -1)
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{
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/*
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* Supplied port name did not match any of the pre-defined
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* names. Try interpreting it as a numeric
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* (hexadecimal/decimal/octal) address.
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*/
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char *cp;
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fd = strtol(port, &cp, 0);
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if(*port == '\0' || *cp != '\0')
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{
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avrdude_message(MSG_INFO, "%s: port name \"%s\" is neither lpt1/2/3 nor valid number\n",
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progname, port);
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fd = -1;
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}
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}
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if(fd < 0)
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{
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avrdude_message(MSG_INFO, "%s: can't open device \"%s\"\n\n", progname, port);
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fdp->ifd = -1;
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return;
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}
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fdp->ifd = fd;
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}
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#define DRIVERNAME "\\\\.\\giveio"
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static int winnt_pp_open(void)
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{
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// Only try to use giveio under Windows NT/2000/XP.
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OSVERSIONINFO ver_info;
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memset(&ver_info, 0, sizeof(ver_info));
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ver_info.dwOSVersionInfoSize = sizeof(ver_info);
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if(!GetVersionEx(&ver_info))
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{
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return(-1);
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}
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else if(ver_info.dwPlatformId == VER_PLATFORM_WIN32_NT)
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{
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HANDLE h = CreateFile(DRIVERNAME,
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GENERIC_READ,
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0,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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if(h == INVALID_HANDLE_VALUE)
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{
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return(-1);
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}
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/* Close immediately. The process now has the rights it needs. */
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if(h != NULL)
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{
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CloseHandle(h);
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}
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}
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return(0);
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}
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void ppi_close(union filedescriptor *fdp)
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{
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return;
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}
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/*
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* set the indicated bit of the specified register.
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*/
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int ppi_set(union filedescriptor *fdp, int reg, int bit)
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{
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unsigned char v;
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unsigned short port;
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port = port_get(fdp, reg);
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v = inb(port);
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v |= bit;
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outb(v, port);
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return 0;
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}
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/*
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* clear the indicated bit of the specified register.
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*/
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int ppi_clr(union filedescriptor *fdp, int reg, int bit)
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{
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unsigned char v;
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unsigned short port;
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port = port_get(fdp, reg);
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v = inb(port);
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v &= ~bit;
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outb(v, port);
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return 0;
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}
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/*
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* get the indicated bit of the specified register.
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*/
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int ppi_get(union filedescriptor *fdp, int reg, int bit)
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{
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unsigned char v;
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v = inb(port_get(fdp, reg));
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v &= bit;
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return(v);
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}
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/*
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* toggle the indicated bit of the specified register.
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*/
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int ppi_toggle(union filedescriptor *fdp, int reg, int bit)
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{
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unsigned char v;
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unsigned short port;
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port = port_get(fdp, reg);
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v = inb(port);
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v ^= bit;
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outb(v, port);
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return 0;
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}
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/*
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* get all bits of the specified register.
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*/
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int ppi_getall(union filedescriptor *fdp, int reg)
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{
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unsigned char v;
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v = inb(port_get(fdp, reg));
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return((int)v);
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}
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/*
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* set all bits of the specified register to val.
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*/
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int ppi_setall(union filedescriptor *fdp, int reg, int val)
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{
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outb((unsigned char)val, port_get(fdp, reg));
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return 0;
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}
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/* Calculate port address to access. */
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static unsigned short port_get(union filedescriptor *fdp, int reg)
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{
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return((unsigned short)(fdp->ifd + reg2offset(reg)));
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}
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/* Convert register enum to offset of base address. */
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static unsigned char reg2offset(int reg)
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{
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unsigned char offset = 0;
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switch(reg)
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{
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case PPIDATA:
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{
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offset = 0;
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break;
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}
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case PPISTATUS:
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{
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offset = 1;
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break;
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}
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case PPICTRL:
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{
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offset = 2;
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break;
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}
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}
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return(offset);
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}
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/* Read in value from port. */
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static unsigned char inb(unsigned short port)
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{
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unsigned char t;
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asm volatile ("in %1, %0"
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: "=a" (t)
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: "d" (port));
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return t;
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}
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/* Write value to port. */
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static void outb(unsigned char value, unsigned short port)
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{
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asm volatile ("out %1, %0"
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:
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: "d" (port), "a" (value) );
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return;
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}
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#if !defined(HAVE_GETTIMEOFDAY)
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struct timezone;
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int gettimeofday(struct timeval *tv, struct timezone *unused){
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// i've found only ms resolution, avrdude expects us
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SYSTEMTIME st;
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GetSystemTime(&st);
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tv->tv_sec=(long)(st.wSecond+st.wMinute*60+st.wHour*3600);
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tv->tv_usec=(long)(st.wMilliseconds*1000);
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return 0;
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}
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#endif /* HAVE_GETTIMEOFDAY */
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// #define W32USLEEPDBG
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#ifdef W32USLEEPDBG
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# define DEBUG_QueryPerformanceCounter(arg) QueryPerformanceCounter(arg)
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# define DEBUG_DisplayTimingInfo(start, stop, freq, us, has_highperf) \
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do { \
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unsigned long dt; \
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dt = (unsigned long)((stop.QuadPart - start.QuadPart) * 1000 * 1000 \
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/ freq.QuadPart); \
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avrdude_message(MSG_INFO, \
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"hpt:%i usleep usec:%lu sleep msec:%lu timed usec:%lu\n", \
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has_highperf, us, ((us + 999) / 1000), dt); \
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} while (0)
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#else
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# define DEBUG_QueryPerformanceCounter(arg)
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# define DEBUG_DisplayTimingInfo(start, stop, freq, us, has_highperf)
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#endif
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#if !defined(HAVE_USLEEP)
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int usleep(unsigned int us)
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{
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int has_highperf;
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LARGE_INTEGER freq,start,stop,loopend;
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// workaround: although usleep is very precise if using
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// high-performance-timers there are sometimes problems with
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// verify - increasing the delay helps sometimes but not
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// realiably. There must be some other problem. Maybe just
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// with my test-hardware maybe in the code-base.
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//// us=(unsigned long) (us*1.5);
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has_highperf=QueryPerformanceFrequency(&freq);
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//has_highperf=0; // debug
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if (has_highperf) {
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QueryPerformanceCounter(&start);
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loopend.QuadPart=start.QuadPart+freq.QuadPart*us/(1000*1000);
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do {
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QueryPerformanceCounter(&stop);
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} while (stop.QuadPart<=loopend.QuadPart);
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}
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else {
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DEBUG_QueryPerformanceCounter(&start);
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Sleep(1);
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Sleep( (DWORD)((us+999)/1000) );
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DEBUG_QueryPerformanceCounter(&stop);
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}
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DEBUG_DisplayTimingInfo(start, stop, freq, us, has_highperf);
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return 0;
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}
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#endif /* !HAVE_USLEEP */
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#endif
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