diff options
Diffstat (limited to 'target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu.c')
| -rwxr-xr-x | target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu.c b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu.c new file mode 100755 index 0000000000..38a5ee8b74 --- /dev/null +++ b/target/linux/ifxmips/files-2.6.33/drivers/crypto/ifxmips/ifxmips_deu.c @@ -0,0 +1,190 @@ +/* + * 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"); |