/* * 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 * 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 #if defined(CONFIG_MODVERSIONS) #define MODVERSIONS #include #endif #include #include #include #include #include #include #include /* Stuff about file systems that we need */ #include #include #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");