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/*
* Cryptographic API.
*
* Support for VIA PadLock hardware crypto engine.
*
* Copyright (c) 2004 Michal Ludvig <michal@logix.cz>
*
* 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.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/crypto.h>
#include <asm/byteorder.h>
#include "padlock.h"
static int __init
padlock_init(void)
{
int ret = -ENOSYS;
if (!cpu_has_xcrypt) {
printk(KERN_ERR PFX "VIA PadLock not detected.\n");
return -ENODEV;
}
if (!cpu_has_xcrypt_enabled) {
printk(KERN_ERR PFX "VIA PadLock detected, but not enabled. Hmm, strange...\n");
return -ENODEV;
}
#ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES
if ((ret = padlock_init_aes())) {
printk(KERN_ERR PFX "VIA PadLock AES initialization failed.\n");
return ret;
}
#endif
if (ret == -ENOSYS)
printk(KERN_ERR PFX "Hmm, VIA PadLock was compiled without any algorithm.\n");
return ret;
}
static void __exit
padlock_fini(void)
{
#ifdef CONFIG_CRYPTO_DEV_PADLOCK_AES
padlock_fini_aes();
#endif
}
module_init(padlock_init);
module_exit(padlock_fini);
MODULE_DESCRIPTION("VIA PadLock crypto engine support.");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Michal Ludvig");
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