[ifxmips]:

[openwrt/svn-archive/archive.git] / target / linux / ifxmips / files / drivers / crypto / ifxmips / ifxmips_deu.c

diff --git a/target/linux/ifxmips/files/drivers/crypto/ifxmips/ifxmips_deu.c b/target/linux/ifxmips/files/drivers/crypto/ifxmips/ifxmips_deu.c
new file mode 100755 (executable)
index 0000000..38a5ee8
--- /dev/null
+++ b/target/linux/ifxmips/files/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");