/*
 * New driver for /dev/crypto device (aka CryptoDev)

 * Copyright (c) 2010 Nikos Mavrogiannopoulos <nmav@gnutls.org>
 *
 * This file is part of linux cryptodev.
 *
 * cryptodev 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 3 of the License, or
 * (at your option) any later version.
 *
 * cryptodev 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, see <http://www.gnu.org/licenses/>.
 */

#include <linux/crypto.h>
#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/random.h>
#include "cryptodev.h"
#include <asm/uaccess.h>
#include <asm/ioctl.h>
#include <linux/scatterlist.h>
#include "ncr.h"
#include "ncr_int.h"

#define err() printk(KERN_DEBUG"ncr: %s: %d\n", __func__, __LINE__)

void* ncr_init_lists(void)
{
	struct ncr_lists *lst;

	lst = kmalloc(sizeof(*lst), GFP_KERNEL);
	if(!lst) {
		err();
		return NULL;
	}

	memset(lst, 0, sizeof(*lst));

	init_MUTEX(&lst->data_sem);
	INIT_LIST_HEAD(&lst->data_list);

	return lst;
}

void ncr_deinit_lists(struct ncr_lists *lst)
{
	if(lst) {
		ncr_data_list_deinit(lst);

		kfree(lst);
	}
}

int
ncr_ioctl(unsigned int uid, struct ncr_lists* lst,
		unsigned int cmd, unsigned long __user arg)
{

	if (unlikely(!lst))
		BUG();

	switch (cmd) {
		case NCRIO_DATA_INIT:
			return ncr_data_new(uid, lst, (void*)arg);
		case NCRIO_DATA_GET:
			return ncr_data_get(lst, (void*)arg);
		case NCRIO_DATA_SET:
			return ncr_data_set(lst, (void*)arg);
		case NCRIO_DATA_DEINIT:
			return ncr_data_deinit(lst, (void*)arg);
		default:
			return -EINVAL;
	}
}