/*
 * 	provider.c
 *
 * Copyright (c) 2004 Evgeniy Polyakov <johnpol@xxxxxxxxxxx>
 * 
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
#include <linux/err.h>

#include "acrypto.h"
#include "crypto_stat.h"

static int prov_data_ready_reentry;
static void prov_data_ready(struct crypto_device *dev);

static struct crypto_capability prov_caps[] = 	{
		{0, 0, 0, 1000}, {1, 1, 1, 1000}, {2, 2, 2, 1000}};
static int prov_cap_number = sizeof(prov_caps)/sizeof(prov_caps[0]);

static struct crypto_device pdev =
{
	.name			= "test_provider",
	.data_ready		= prov_data_ready,
	.cap			= &prov_caps[0],
};

static void prov_data_ready(struct crypto_device *dev)
{
	struct crypto_session *s, *n;

	if (prov_data_ready_reentry)
		return;

	prov_data_ready_reentry++;
	//spin_lock_bh(&dev->session_lock);
	list_for_each_entry_safe(s, n, &dev->session_list, dev_queue_entry)
	{
		if (!session_completed(s))
		{
			dprintk("Completing session %llu [%llu] in %s.\n", 
					s->ci.id, s->ci.dev_id, pdev.name);
			crypto_stat_complete_inc(s);
			complete_session(s);
		}
	}
	//spin_unlock_bh(&dev->session_lock);
	prov_data_ready_reentry--;
}

int prov_init(void)
{
	int err;

	pdev.cap_number = prov_cap_number;

	err = crypto_device_add(&pdev);
	if (err)
		return err;

	dprintk(KERN_INFO "Test crypto provider module %s is loaded.\n", pdev.name);

	return 0;
}

void prov_fini(void)
{
	crypto_device_remove(&pdev);
	
	dprintk(KERN_INFO "Test crypto provider module %s is unloaded.\n", pdev.name);
}

module_init(prov_init);
module_exit(prov_fini);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Evgeniy Polyakov <johnpol@xxxxxxxxxxx>");
MODULE_DESCRIPTION("Test crypto module provider.");