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/*
* 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.
*
* Copyright (C) 2010 Ralph Hempel <ralph.hempel@lantiq.com>
* Copyright (C) 2009 Mohammad Firdaus
*/
/*!
\defgroup IFX_DEU IFX_DEU_DRIVERS
\ingroup API
\brief ifx deu driver module
*/
/*!
\file ifxmips_deu.c
\ingroup IFX_DEU
\brief main deu driver file
*/
/*!
\defgroup IFX_DEU_FUNCTIONS IFX_DEU_FUNCTIONS
\ingroup IFX_DEU
\brief IFX DEU functions
*/
/* Project header */
#include <linux/version.h>
#if defined(CONFIG_MODVERSIONS)
#define MODVERSIONS
#include <linux/modversions.h>
#endif
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/crypto.h>
#include <linux/proc_fs.h>
#include <linux/fs.h> /* Stuff about file systems that we need */
#include <asm/byteorder.h>
#include <ifxmips_pmu.h>
#include "ifxmips_deu.h"
#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA
int disable_deudma = 0;
#else
int disable_deudma = 1;
#endif /* CONFIG_CRYPTO_DEV_IFXMIPS_DMA */
#ifdef CRYPTO_DEBUG
char deu_debug_level = 3;
#endif
/*! \fn static int __init deu_init (void)
* \ingroup IFX_DEU_FUNCTIONS
* \brief link all modules that have been selected in kernel config for ifx hw crypto support
* \return ret
*/
static int __init deu_init (void)
{
int ret = -ENOSYS;
u32 config;
volatile struct clc_controlr_t *clc = (struct clc_controlr_t *) IFX_DEU_CLK;
ifxmips_pmu_enable(1<<20);
printk(KERN_INFO "Lantiq crypto hardware driver version %s\n", IFX_DEU_DRV_VERSION);
chip_version();
clc->FSOE = 0;
clc->SBWE = 0;
clc->SPEN = 0;
clc->SBWE = 0;
clc->DISS = 0;
clc->DISR = 0;
config = *IFX_DEU_ID;
#ifdef CONFIG_CRYPTO_DEV_IFXMIPS_DMA
deu_dma_init ();
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_DES)
if(config & IFX_DEU_ID_DES) {
if ((ret = ifxdeu_init_des ())) {
printk (KERN_ERR "IFX DES initialization failed!\n");
}
} else {
printk (KERN_ERR "IFX DES not supported!\n");
}
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_AES)
if(config & IFX_DEU_ID_AES) {
if ((ret = ifxdeu_init_aes ())) {
printk (KERN_ERR "IFX AES initialization failed!\n");
}
} else {
printk (KERN_ERR "IFX AES not supported!\n");
}
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_ARC4)
if ((ret = ifxdeu_init_arc4 ())) {
printk (KERN_ERR "IFX ARC4 initialization failed!\n");
}
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_SHA1)
if(config & IFX_DEU_ID_HASH) {
if ((ret = ifxdeu_init_sha1 ())) {
printk (KERN_ERR "IFX SHA1 initialization failed!\n");
}
} else {
printk (KERN_ERR "IFX SHA1 not supported!\n");
}
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_MD5)
if(config & IFX_DEU_ID_HASH) {
if ((ret = ifxdeu_init_md5 ())) {
printk (KERN_ERR "IFX MD5 initialization failed!\n");
}
} else {
printk (KERN_ERR "IFX MD5 not supported!\n");
}
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_SHA1_HMAC)
if ((ret = ifxdeu_init_sha1_hmac ())) {
printk (KERN_ERR "IFX SHA1_HMAC initialization failed!\n");
}
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_MD5_HMAC)
if ((ret = ifxdeu_init_md5_hmac ())) {
printk (KERN_ERR "IFX MD5_HMAC initialization failed!\n");
}
#endif
return ret;
}
/*! \fn static void __exit deu_fini (void)
* \ingroup IFX_DEU_FUNCTIONS
* \brief remove the loaded crypto algorithms
*/
static void __exit deu_fini (void)
{
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_DES)
ifxdeu_fini_des ();
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_AES)
ifxdeu_fini_aes ();
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_ARC4)
ifxdeu_fini_arc4 ();
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_SHA1)
ifxdeu_fini_sha1 ();
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_MD5)
ifxdeu_fini_md5 ();
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_SHA1_HMAC)
ifxdeu_fini_sha1_hmac ();
#endif
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_MD5_HMAC)
ifxdeu_fini_md5_hmac ();
#endif
printk("DEU has exited successfully\n");
#if defined(CONFIG_CRYPTO_DEV_IFXMIPS_DMA)
ifxdeu_fini_dma();
printk("DMA has deregistered successfully\n");
#endif
}
module_init (deu_init);
module_exit (deu_fini);
MODULE_DESCRIPTION ("Infineon crypto engine support.");
MODULE_LICENSE ("GPL");
MODULE_AUTHOR ("Mohammad Firdaus");
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