/*

    utils.c:

    Copyright (C) 2003-2008   Ludovic Rousseau

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 of the License, or (at your option) any later version.

    This library 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

    Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public License

	along with this library; if not, write to the Free Software Foundation,

	Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

*/

#include <pcsclite.h>

#include <config.h>

#include "ccid.h"

#include "defs.h"

#include "ccid_ifdhandler.h"

#include "utils.h"

#include "debug.h"

int ReaderIndex[CCID_DRIVER_MAX_READERS];

void InitReaderIndex(void)

{

	int i;

	for (i=0; i

		ReaderIndex[i] = -1;

} /* InitReaderIndex */

int GetNewReaderIndex(const int Lun)

{

	int i;

	/* check that Lun is NOT already used */

	for (i=0; i

		if (Lun == ReaderIndex[i])

			break;

	if (i < CCID_DRIVER_MAX_READERS)

	{

		DEBUG_CRITICAL2("Lun: %d is already used", Lun);

		return -1;

	}

	for (i=0; i

		if (-1 == ReaderIndex[i])

		{

			ReaderIndex[i] = Lun;

			return i;

		}

	DEBUG_CRITICAL("ReaderIndex[] is full");

	return -1;

} /* GetReaderIndex */

int LunToReaderIndex(const int Lun)

{

	int i;

	for (i=0; i

		if (Lun == ReaderIndex[i])

			return i;

	DEBUG_CRITICAL2("Lun: %X not found", Lun);

	return -1;

} /* LunToReaderIndex */

void ReleaseReaderIndex(const int index)

{

	ReaderIndex[index] = -1;

} /* ReleaseReaderIndex */