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/*
* dfu-programmer
*
* $Id$
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <string.h>
#ifdef HAVE_LIBUSB_1_0
#include <libusb.h>
#else
#include <usb.h>
#endif
#include "config.h"
#include "dfu-device.h"
#include "dfu.h"
#include "atmel.h"
#include "arguments.h"
#include "commands.h"
int debug;
#ifdef HAVE_LIBUSB_1_0
libusb_context *usbcontext;
#endif
int main( int argc, char **argv )
{
static const char *progname = PACKAGE;
int retval = 0;
dfu_device_t dfu_device;
struct programmer_arguments args;
#ifdef HAVE_LIBUSB_1_0
struct libusb_device *device = NULL;
#else
struct usb_device *device = NULL;
#endif
#ifdef HAVE_LIBUSB_1_0
if (libusb_init(&usbcontext)) {
fprintf( stderr, "%s: can't init libusb.\n", progname );
}
#else
usb_init();
#endif
memset( &args, 0, sizeof(args) );
memset( &dfu_device, 0, sizeof(dfu_device) );
if( 0 != parse_arguments(&args, argc, argv) ) {
retval = 1;
goto error;
}
if( args.command == com_version ) {
printf( PACKAGE_STRING "\n" );
return 0;
}
if( debug >= 200 ) {
#ifdef HAVE_LIBUSB_1_0
libusb_set_debug(usbcontext, debug );
#else
usb_set_debug( debug );
#endif
}
device = dfu_device_init( args.vendor_id, args.chip_id,
args.bus_id, args.device_address,
&dfu_device,
args.initial_abort,
args.honor_interfaceclass );
if( NULL == device ) {
fprintf( stderr, "%s: no device present.\n", progname );
retval = 1;
goto error;
}
if( 0 != execute_command(&dfu_device, &args) ) {
/* command issued a specific diagnostic already */
retval = 1;
goto error;
}
retval = 0;
error:
if( NULL != dfu_device.handle ) {
int rv;
#ifdef HAVE_LIBUSB_1_0
rv = libusb_release_interface( dfu_device.handle, dfu_device.interface );
#else
rv = usb_release_interface( dfu_device.handle, dfu_device.interface );
#endif
/* The RESET command sometimes causes the usb_release_interface command to fail.
It is not obvious why this happens but it may be a glitch due to the hardware
reset in the attached device. In any event, since reset causes a USB detach
this should not matter, so there is no point in raising an alarm.
*/
if( 0 != rv && com_reset != args.command ) {
fprintf( stderr, "%s: failed to release interface %d.\n",
progname, dfu_device.interface );
retval = 1;
}
}
if( NULL != dfu_device.handle ) {
#ifdef HAVE_LIBUSB_1_0
libusb_close(dfu_device.handle);
#else
if( 0 != usb_close(dfu_device.handle) ) {
fprintf( stderr, "%s: failed to close the handle.\n", progname );
retval = 1;
}
#endif
}
#ifdef HAVE_LIBUSB_1_0
libusb_exit(usbcontext);
#endif
return retval;
}
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