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205 lines
5.0 KiB
C
205 lines
5.0 KiB
C
/******************************************************************************
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**
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** FILE NAME : ifxmips_deu.c
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** PROJECT : IFX UEIP
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** MODULES : DEU Module for Danube
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**
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** DATE : September 8, 2009
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** AUTHOR : Mohammad Firdaus
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** DESCRIPTION : Data Encryption Unit Driver
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** COPYRIGHT : Copyright (c) 2009
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** Infineon Technologies AG
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** Am Campeon 1-12, 85579 Neubiberg, Germany
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** HISTORY
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** $Date $Author $Comment
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** 08,Sept 2009 Mohammad Firdaus Initial UEIP release
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*******************************************************************************/
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/*!
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\defgroup IFX_DEU IFX_DEU_DRIVERS
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\ingroup API
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\brief ifx deu driver module
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*/
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/*!
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\file ifxmips_deu.c
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\ingroup IFX_DEU
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\brief main deu driver file
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*/
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/*!
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\defgroup IFX_DEU_FUNCTIONS IFX_DEU_FUNCTIONS
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\ingroup IFX_DEU
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\brief IFX DEU functions
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*/
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/* Project header */
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#include <linux/version.h>
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#if defined(CONFIG_MODVERSIONS)
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#define MODVERSIONS
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#include <linux/modversions.h>
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#endif
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/crypto.h>
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#include <linux/proc_fs.h>
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#include <linux/platform_device.h>
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#include <linux/fs.h> /* Stuff about file systems that we need */
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#include <asm/byteorder.h>
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#include "ifxmips_deu.h"
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#include <lantiq_soc.h>
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#if defined(CONFIG_DANUBE)
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#include "ifxmips_deu_danube.h"
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#elif defined(CONFIG_AR9)
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#include "ifxmips_deu_ar9.h"
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#elif defined(CONFIG_VR9) || defined(CONFIG_AR10)
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#include "ifxmips_deu_vr9.h"
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#else
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#error "Platform unknown!"
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#endif /* CONFIG_xxxx */
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int disable_deudma = 1;
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void chip_version(void);
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/*! \fn static int __init deu_init (void)
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* \ingroup IFX_DEU_FUNCTIONS
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* \brief link all modules that have been selected in kernel config for ifx hw crypto support
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* \return ret
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*/
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static int ltq_deu_probe(struct platform_device *pdev)
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{
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int ret = -ENOSYS;
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START_DEU_POWER;
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#define IFX_DEU_DRV_VERSION "2.0.0"
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printk(KERN_INFO "Infineon Technologies DEU driver version %s \n", IFX_DEU_DRV_VERSION);
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FIND_DEU_CHIP_VERSION;
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#if defined(CONFIG_CRYPTO_DEV_DES)
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if ((ret = ifxdeu_init_des ())) {
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printk (KERN_ERR "IFX DES initialization failed!\n");
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}
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#endif
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#if defined(CONFIG_CRYPTO_DEV_AES)
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if ((ret = ifxdeu_init_aes ())) {
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printk (KERN_ERR "IFX AES initialization failed!\n");
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}
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#endif
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#if defined(CONFIG_CRYPTO_DEV_ARC4)
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if ((ret = ifxdeu_init_arc4 ())) {
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printk (KERN_ERR "IFX ARC4 initialization failed!\n");
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}
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#endif
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#if defined(CONFIG_CRYPTO_DEV_SHA1)
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if ((ret = ifxdeu_init_sha1 ())) {
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printk (KERN_ERR "IFX SHA1 initialization failed!\n");
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}
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#endif
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#if defined(CONFIG_CRYPTO_DEV_MD5)
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if ((ret = ifxdeu_init_md5 ())) {
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printk (KERN_ERR "IFX MD5 initialization failed!\n");
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}
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#endif
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#if defined(CONFIG_CRYPTO_DEV_SHA1_HMAC)
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if ((ret = ifxdeu_init_sha1_hmac ())) {
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printk (KERN_ERR "IFX SHA1_HMAC initialization failed!\n");
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}
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#endif
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#if defined(CONFIG_CRYPTO_DEV_MD5_HMAC)
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if ((ret = ifxdeu_init_md5_hmac ())) {
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printk (KERN_ERR "IFX MD5_HMAC initialization failed!\n");
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}
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#endif
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return ret;
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}
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/*! \fn static void __exit deu_fini (void)
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* \ingroup IFX_DEU_FUNCTIONS
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* \brief remove the loaded crypto algorithms
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*/
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static int ltq_deu_remove(struct platform_device *pdev)
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{
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//#ifdef CONFIG_CRYPTO_DEV_PWR_SAVE_MODE
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#if defined(CONFIG_CRYPTO_DEV_DES)
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ifxdeu_fini_des ();
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#endif
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#if defined(CONFIG_CRYPTO_DEV_AES)
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ifxdeu_fini_aes ();
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#endif
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#if defined(CONFIG_CRYPTO_DEV_ARC4)
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ifxdeu_fini_arc4 ();
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#endif
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#if defined(CONFIG_CRYPTO_DEV_SHA1)
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ifxdeu_fini_sha1 ();
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#endif
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#if defined(CONFIG_CRYPTO_DEV_MD5)
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ifxdeu_fini_md5 ();
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#endif
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#if defined(CONFIG_CRYPTO_DEV_SHA1_HMAC)
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ifxdeu_fini_sha1_hmac ();
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#endif
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#if defined(CONFIG_CRYPTO_DEV_MD5_HMAC)
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ifxdeu_fini_md5_hmac ();
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#endif
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printk("DEU has exited successfully\n");
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return 0;
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}
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int disable_multiblock = 0;
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module_param(disable_multiblock,int,0);
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static const struct of_device_id ltq_deu_match[] = {
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#ifdef CONFIG_DANUBE
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{ .compatible = "lantiq,deu-danube"},
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#elif defined CONFIG_AR9
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{ .compatible = "lantiq,deu-arx100"},
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#elif defined CONFIG_VR9
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{ .compatible = "lantiq,deu-xrx200"},
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#endif
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{},
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};
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MODULE_DEVICE_TABLE(of, ltq_deu_match);
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static struct platform_driver ltq_deu_driver = {
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.probe = ltq_deu_probe,
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.remove = ltq_deu_remove,
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.driver = {
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.name = "deu",
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.owner = THIS_MODULE,
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.of_match_table = ltq_deu_match,
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},
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};
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module_platform_driver(ltq_deu_driver);
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MODULE_DESCRIPTION ("Infineon DEU crypto engine support.");
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MODULE_LICENSE ("GPL");
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MODULE_AUTHOR ("Mohammad Firdaus");
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