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/*
* Copyright (c) 2001 Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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
*/
#ident "$Id: main.c,v 1.4 2002/01/17 14:19:28 dbrownell Exp $"
/*
* This program supports loading firmware into a target USB device
* that is discovered and referenced by the hotplug usb agent. It can
* also do other useful things, like set the permissions of the device
* and create a symbolic link for the benefit of applications that are
* looking for the device.
*
* -I <path> -- Download this firmware (intel hex)
* -2 -- it's an FX2 (USB 2.0 capable) not FX
*
* -L <path> -- Create a symbolic link to the device.
* -m <mode> -- Set the permissions on the device after download.
* -D <path> -- Use this device, instead of $DEVICE
*
* This program is intended to be started by hotplug scripts in
* response to a device appearing on the bus. It therefore also
* expects these environment variables which are passed by hotplug to
* its sub-scripts:
*
* DEVICE=<path>
* This is the path to the device is /proc/bus/usb. It is the
* complete path to the device, that I can pass to open and
* manipulate as a USB device.
*/
# include <stdlib.h>
# include <stdio.h>
# include <getopt.h>
# include <sys/types.h>
# include <sys/stat.h>
# include <fcntl.h>
# include <unistd.h>
# include "ezusb.h"
int verbose;
int main(int argc, char*argv[])
{
const char*link_path = 0;
const char*ihex_path = 0;
const char*device_path = getenv("DEVICE");
int fx2 = 0;
mode_t mode = 0;
int opt;
while ((opt = getopt(argc, argv, "2vD:I:L:m:")) != EOF) switch (opt) {
case '2':
fx2 = 1;
break;
case 'D':
device_path = optarg;
break;
case 'I':
ihex_path = optarg;
break;
case 'L':
link_path = optarg;
break;
case 'm':
mode = strtoul(optarg,0,0);
mode &= 0777;
break;
case 'v':
verbose++;
break;
default:
goto usage;
}
if (!device_path) {
fputs ("no device specified!\n", stderr);
usage:
fputs ("usage: ", stderr);
fputs (argv [0], stderr);
fputs (" [-2v] [-D devpath] [-I firmware_hexfile] ", stderr);
fputs ("[-L link] [-m mode]\n", stderr);
fputs ("... [-D devpath] overrides DEVICE= in env\n", stderr);
fputs ("... at least one of -I, -L, -m is required\n", stderr);
return -1;
}
if (ihex_path) {
int fd = open(device_path, O_RDWR);
int status;
if (fd == -1) {
perror(device_path);
return -1;
}
status = ezusb_load_ihex(fd, ihex_path, fx2);
if (status != 0)
return status;
/* some firmware won't renumerate, but typically it will.
* link and chmod only make sense without renumeration...
*/
}
if (link_path) {
int rc = unlink(link_path);
rc = symlink(device_path, link_path);
if (rc == -1) {
perror(link_path);
return -1;
}
}
if (mode != 0) {
int rc = chmod(device_path, mode);
if (rc == -1) {
perror(link_path);
return -1;
}
}
if (!ihex_path && !link_path && !mode) {
fputs ("missing request! (firmware, link, or mode)\n", stderr);
return -1;
}
return 0;
}
/*
* $Log: main.c,v $
* Revision 1.4 2002/01/17 14:19:28 dbrownell
* fix warnings
*
* Revision 1.3 2001/12/27 17:54:04 dbrownell
* forgot an important character :)
*
* Revision 1.2 2001/12/27 17:43:29 dbrownell
* fail on firmware download errors; add "-v" flag
*
* Revision 1.1 2001/06/12 00:00:50 stevewilliams
* Added the fxload program.
* Rework root makefile and hotplug.spec to install in prefix
* location without need of spec file for install.
*
*/
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