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openwrt-xburst/target/linux/coldfire/patches/015-m5445x_cau_crypto.patch
kaloz 343c185b7d use broken-out patches for the coldfire to make it easier to follow differences against the bsp 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16547 3c298f89-4303-0410-b956-a3cf2f4a3e73
2009-06-23 21:04:37 +00:00

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71 KiB
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From 67e24d4008a39fa02a4748a3abf54410b15262b3 Mon Sep 17 00:00:00 2001
From: Kurt Mahan <kmahan@freescale.com>
Date: Tue, 20 Nov 2007 10:02:16 -0700
Subject: [PATCH] Add Coldfire CAU crypto support for DES/3DES/AES/MD5/AES.
LTIBName: m5445x-cau-crypto
Signed-off-by: Kurt Mahan <kmahan@freescale.com>
---
drivers/crypto/Kconfig | 63 ++++
drivers/crypto/Makefile | 5 +
drivers/crypto/mcfcau-aes.c | 311 ++++++++++++++++++++
drivers/crypto/mcfcau-des.c | 437 ++++++++++++++++++++++++++++
drivers/crypto/mcfcau-md5.c | 654 ++++++++++++++++++++++++++++++++++++++++++
drivers/crypto/mcfcau-sha1.c | 280 ++++++++++++++++++
drivers/crypto/mcfcau.c | 32 ++
drivers/crypto/mcfcau.h | 98 +++++++
8 files changed, 1880 insertions(+), 0 deletions(-)
create mode 100644 drivers/crypto/mcfcau-aes.c
create mode 100644 drivers/crypto/mcfcau-des.c
create mode 100644 drivers/crypto/mcfcau-md5.c
create mode 100644 drivers/crypto/mcfcau-sha1.c
create mode 100644 drivers/crypto/mcfcau.c
create mode 100644 drivers/crypto/mcfcau.h
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -60,6 +60,69 @@ config CRYPTO_DEV_GEODE
To compile this driver as a module, choose M here: the module
will be called geode-aes.
+config CRYPTO_DEV_MCFCAU
+ bool "Support for Freescale Coldfire Cryptographic Acceleration Unit (CAU)"
+ depends on M54455
+ select CRYPTO_ALGAPI
+ help
+ The cryptographic acceleration unit (CAU) is a ColdFire coprocessor
+ implementing a set of specialized operations in hardware. For example, you can
+ find it on MCF54455.
+
+config CRYPTO_DEV_MCFCAU_DES
+ tristate "DES and Triple DES cipher algorithms (MCF54455)"
+ depends on CRYPTO_DEV_MCFCAU
+ select CRYPTO_ALGAPI
+ select CRYPTO_BLKCIPHER
+ help
+ DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
+
+ Say 'Y' here to use the CAU coprocessor for
+ the CryptoAPI DES and 3DES alogrithms.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mcfcau-des.
+
+config CRYPTO_DEV_MCFCAU_AES
+ tristate "AES cipher algorithm (MCF54455)"
+ depends on CRYPTO_DEV_MCFCAU
+ select CRYPTO_ALGAPI
+ select CRYPTO_BLKCIPHER
+ help
+ AES cipher algorithm (FIPS 197).
+
+ Say 'Y' here to use the CAU coprocessor for
+ the CryptoAPI AES alogrithm.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mcfcau-aes.
+
+config CRYPTO_DEV_MCFCAU_MD5
+ tristate "MD5 digest algorithm (MCF54455)"
+ depends on CRYPTO_DEV_MCFCAU
+ select CRYPTO_ALGAPI
+ help
+ MD5 message digest algorithm (RFC1321).
+
+ Say 'Y' here to use the CAU coprocessor for
+ the CryptoAPI MD5 alogrithm.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mcfcau-md5.
+
+config CRYPTO_DEV_MCFCAU_SHA1
+ tristate "SHA1 digest algorithm (MCF54455)"
+ depends on CRYPTO_DEV_MCFCAU
+ select CRYPTO_ALGAPI
+ help
+ SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
+
+ Say 'Y' here to use the CAU coprocessor for
+ the CryptoAPI SHA1 alogrithm.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mcfcau-sha1.
+
config ZCRYPT
tristate "Support for PCI-attached cryptographic adapters"
depends on S390
--- a/drivers/crypto/Makefile
+++ b/drivers/crypto/Makefile
@@ -2,3 +2,8 @@ obj-$(CONFIG_CRYPTO_DEV_PADLOCK_AES) +=
obj-$(CONFIG_CRYPTO_DEV_PADLOCK_SHA) += padlock-sha.o
obj-$(CONFIG_CRYPTO_DEV_GEODE) += geode-aes.o
obj-$(CONFIG_CRYPTO_DEV_HIFN_795X) += hifn_795x.o
+obj-$(CONFIG_CRYPTO_DEV_MCFCAU) += mcfcau.o
+obj-$(CONFIG_CRYPTO_DEV_MCFCAU_DES) += mcfcau-des.o
+obj-$(CONFIG_CRYPTO_DEV_MCFCAU_AES) += mcfcau-aes.o
+obj-$(CONFIG_CRYPTO_DEV_MCFCAU_MD5) += mcfcau-md5.o
+obj-$(CONFIG_CRYPTO_DEV_MCFCAU_SHA1) += mcfcau-sha1.o
--- /dev/null
+++ b/drivers/crypto/mcfcau-aes.c
@@ -0,0 +1,311 @@
+ /***************************************************************************
+ * mcfcau-aes.c - Implementation of AES Cipher Algorithm
+ * for Freescale ColdFire Cryptographic Acceleration Unit (CAU).
+ *
+ * Author: Andrey Butok
+ * Copyright Freescale Semiconductor Inc. 2007
+ *
+ * NOTE: You can find the ColdFire CAU module on MCF54455 and MCF52235.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ***************************************************************************
+ * Changes:
+ * v0.01 17 September 2007 Andrey Butok
+ * Initial Release - developed on 2.6.20 Linux kernel.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/crypto.h>
+
+/*
+#undef DEBUG
+#define DEBUG 1
+*/
+
+#include "mcfcau.h"
+
+#define MCFCAU_AES_MIN_KEY_SIZE (16)
+#define MCFCAU_AES_MAX_KEY_SIZE (32)
+#define MCFCAU_AES_BLOCK_SIZE (16)
+
+#define MCFCAU_AES_DRIVER_DESC "AES ColdFire CAU driver"
+#define MCFCAU_AES_DRIVER_VERSION "v0.01"
+
+struct mcfcau_aes_ctx {
+ int Nr_1;
+ u32 buf[120];
+ u32 buf_tmp[16];
+};
+
+static u32 mcfcau_rco_tab[10]={ 0x01000000, 0x02000000, 0x04000000, 0x08000000,
+ 0x10000000, 0x20000000, 0x40000000, 0x80000000,
+ 0x1b000000, 0x36000000};
+
+int mcfcau_aes_setkey(struct crypto_tfm *tfm, const u8 *in_key,
+ unsigned int key_len)
+{
+ struct mcfcau_aes_ctx *ctx = crypto_tfm_ctx(tfm);
+ const u32 * key = (const u32 *)in_key;
+ u32 *flags = &tfm->crt_flags;
+ u32 i;
+ u32* key_sch = (&ctx->buf[0]);
+ u32 * temp_p, * rcon_p;
+ u32 Nx;
+ u32 Nk;
+ unsigned long iflags;
+
+ DBG("\n");
+
+ if (key_len % 8) {
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ return -EINVAL;
+ }
+
+ Nk = key_len>>2;
+
+ for(i=0;i<Nk;i++){
+ key_sch[i] = key[i];
+ }
+
+ ctx->Nr_1 = Nk+5;
+
+ /* Key Expansion */
+ temp_p=&key_sch[Nk-1];
+ rcon_p=&mcfcau_rco_tab[0];
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+
+ asm volatile ("move.l %0, %%a1"::"m"(temp_p):"a1");
+ asm volatile ("move.l %0, %%a3"::"m"(rcon_p):"a3");
+ asm volatile ("move.l %0, %%a4"::"m"(key_sch):"a4");
+
+ Nx=(Nk+7)<<2; /* (Nr+1)*Nb */
+
+ for(i=Nk; i<Nx; i++)
+ {
+ /* temp = key_sch[Nk-1] */
+ asm volatile ("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CAA):"a1");
+
+ if(i%Nk==0){
+ asm volatile ("moveq #8, %%d0":::"d0");
+ /* CAA=RotWord(temp) */
+ asm volatile ("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA):"d0");
+ /* SubWord(CAA) */
+ asm volatile ("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_AESS+MCFCAU_CAA));
+ /* ACC xor rcon[i/Nk] */
+ asm volatile ("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CAA):"a3");
+
+ }else if((Nk>6) && (i%Nk ==4)){
+ /* SubWord(ACC) */
+ asm volatile ("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_AESS+MCFCAU_CAA));
+ }
+
+ /* key_sch[i]^=key_sch[i-Nk]; store ACC to key_sch[i] */
+ asm volatile ("cp0ld.l (%%a4)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CAA):"a4");
+ asm volatile ("cp0st.l %%d0,(%%a1),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CAA));
+ }
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+
+ return 0;
+}
+
+
+/* encrypt a block of text */
+static void mcfcau_aes_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+{
+ struct mcfcau_aes_ctx *ctx = crypto_tfm_ctx(tfm);
+ const int Nr_1 = ctx->Nr_1;
+
+ u32* key_sch = &(ctx->buf[0]);
+ u32 i;
+ unsigned long iflags;
+
+ DBG("\n");
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+ asm("move.l %0, %%a1"::"m"(in):"a1");
+ asm("move.l %0, %%a0"::"m"(key_sch):"a0");
+ /* state=in */
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA2):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA3):"a1");
+ /* AddRoundKey() */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA0):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA1):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA2):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA3):"a0");
+
+ for(i=Nr_1;i>0;i--){
+ /* SubBytes(state) */
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESS+MCFCAU_CA0));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESS+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESS+MCFCAU_CA2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESS+MCFCAU_CA3));
+ /* ShiftRows(state) */
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESR));
+ /* MixColumns(state); AddRoundKey() */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_AESC+MCFCAU_CA0):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_AESC+MCFCAU_CA1):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_AESC+MCFCAU_CA2):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_AESC+MCFCAU_CA3):"a0");
+ }
+ /* SubBytes(state)*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESS+MCFCAU_CA0));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESS+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESS+MCFCAU_CA2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESS+MCFCAU_CA3));
+ /* ShiftRows(state) */
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESR));
+ /* AddRoundKey() */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA0):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA1):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA2):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA3):"a0");
+ /* out = state */
+ asm("move.l %0, %%a1" ::"m"(out):"a1");
+ asm("cp0st.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA0):"d0");
+ asm("cp0st.l %%d0,%%d1,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA1):"d1");
+
+ asm("move.l %%d0,(%%a1)+":::"a1");
+ asm("move.l %%d1,(%%a1)+":::"a1");
+
+ asm("cp0st.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA2):"d0");
+ asm("cp0st.l %%d0,%%d1,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA3):"d1");
+
+ asm("move.l %%d0,(%%a1)+":::"a1");
+ asm("move.l %%d1,(%%a1)+":::"a1");
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+}
+
+
+/* decrypt a block of text */
+static void mcfcau_aes_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
+{
+ struct mcfcau_aes_ctx *ctx = crypto_tfm_ctx(tfm);
+ u32* key_sch = &(ctx->buf[0]);
+ u32 i;
+ unsigned long iflags;
+ const int Nr_1 = ctx->Nr_1;
+ key_sch=&key_sch[(Nr_1+2)*4];
+
+ DBG("\n");
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+
+ asm("move.l %0, %%a1"::"m"(in):"a1");
+ asm("move.l %0, %%a0"::"m"(key_sch):"a0");
+ /* state=in */
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA2):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA3):"a1");
+ /* AddRoundKey() */
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA3):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA2):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA1):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA0):"a0");
+
+ for(i=Nr_1;i>0;i--){
+ /* InvShiftRows(state) */
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIR));
+ /* InvSubBytes(state) */
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIS+MCFCAU_CA3));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIS+MCFCAU_CA2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIS+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIS+MCFCAU_CA0));
+ /* InvMixColumns(state); AddRoundKey() */
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_AESIC+MCFCAU_CA3):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_AESIC+MCFCAU_CA2):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_AESIC+MCFCAU_CA1):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_AESIC+MCFCAU_CA0):"a0");
+ }
+ /* InvShiftRows(state) */
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIR));
+ /* InvSubBytes(state)*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIS+MCFCAU_CA3));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIS+MCFCAU_CA2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIS+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_AESIS+MCFCAU_CA0));
+ /* AddRoundKey() */
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA3):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA2):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA1):"a0");
+ asm("cp0ld.l -(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA0):"a0");
+ /* out = state */
+ asm("move.l %0, %%a1" ::"m"(out):"a1");
+ asm("cp0st.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA0):"d0");
+ asm("cp0st.l %%d0,%%d1,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA1):"d1");
+
+ asm("move.l %%d0,(%%a1)+":::"a1");
+ asm("move.l %%d1,(%%a1)+":::"a1");
+
+ asm("cp0st.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA2):"d0");
+ asm("cp0st.l %%d0,%%d1,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA3):"d1");
+
+ asm("move.l %%d0,(%%a1)+":::"a1");
+ asm("move.l %%d1,(%%a1)+":::"a1");
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+
+}
+
+
+static struct crypto_alg mcfcau_aes_alg = {
+ .cra_name = "aes",
+ .cra_driver_name = "aes-mcfcau",
+ .cra_priority = MCFCAU_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = MCFCAU_AES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mcfcau_aes_ctx),
+ .cra_alignmask = 3,
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(mcfcau_aes_alg.cra_list),
+ .cra_u = {
+ .cipher = {
+ .cia_min_keysize = MCFCAU_AES_MIN_KEY_SIZE,
+ .cia_max_keysize = MCFCAU_AES_MAX_KEY_SIZE,
+ .cia_setkey = mcfcau_aes_setkey,
+ .cia_encrypt = mcfcau_aes_encrypt,
+ .cia_decrypt = mcfcau_aes_decrypt
+ }
+ }
+};
+
+static int __init mcfcau_aes_init(void)
+{
+ int ret = crypto_register_alg(&mcfcau_aes_alg);
+
+ printk(KERN_INFO MCFCAU_AES_DRIVER_DESC " "
+ MCFCAU_AES_DRIVER_VERSION " %s.\n",ret?"failed":"registered");
+ return ret;
+}
+
+static void __exit mcfcau_aes_fini(void)
+{
+ crypto_unregister_alg(&mcfcau_aes_alg);
+ printk(KERN_INFO MCFCAU_AES_DRIVER_DESC " "
+ MCFCAU_AES_DRIVER_VERSION " unregistered.\n");
+}
+
+module_init(mcfcau_aes_init);
+module_exit(mcfcau_aes_fini);
+
+MODULE_DESCRIPTION(MCFCAU_AES_DRIVER_DESC);
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Andrey Butok");
--- /dev/null
+++ b/drivers/crypto/mcfcau-des.c
@@ -0,0 +1,437 @@
+/***************************************************************************
+ * mcfcau-des.c - Implementation of DES & Triple DES EDE Cipher Algorithms
+ * for Freescale ColdFire Cryptographic Acceleration Unit (CAU).
+ *
+ * Author: Andrey Butok
+ * Copyright Freescale Semiconductor Inc. 2007
+ *
+ * NOTE: You can find the ColdFire CAU module on MCF54455 and MCF52235.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ***************************************************************************
+ * Changes:
+ * v0.01 14 August 2007 Andrey Butok
+ * Initial Release - developed on 2.6.20 Linux kernel.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/crypto.h>
+#include <linux/types.h>
+
+/*
+#undef DEBUG
+#define DEBUG 1
+*/
+
+#include "mcfcau.h"
+
+#define MCFCAU_DES_KEY_SIZE (8)
+#define MCFCAU_DES_EXPKEY_WORDS (32)
+#define MCFCAU_DES_BLOCK_SIZE (8)
+
+#define MCFCAU_DES3_EDE_KEY_SIZE (3 * MCFCAU_DES_KEY_SIZE)
+#define MCFCAU_DES3_EDE_EXPKEY_WORDS (3 * MCFCAU_DES_EXPKEY_WORDS)
+#define MCFCAU_DES3_EDE_BLOCK_SIZE (MCFCAU_DES_BLOCK_SIZE)
+
+#define MCFCAU_DES_DRIVER_DESC "DES & 3DES ColdFire CAU driver"
+#define MCFCAU_DES_DRIVER_VERSION "v0.01"
+
+struct mcfcau_des_ctx {
+ u32 expkey[MCFCAU_DES_EXPKEY_WORDS];
+};
+
+struct mcfcau_des3_ede_ctx {
+ u32 expkey[MCFCAU_DES3_EDE_EXPKEY_WORDS];
+};
+
+/* DES round operations */
+static inline void mcfcau_des_encipher(void)
+{
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESK));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_IP+MCFCAU_KSL1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSL1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_FP+MCFCAU_KSL1));
+}
+
+static inline void mcfcau_des_decipher(void)
+{
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESK+MCFCAU_DC));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_IP+MCFCAU_KSR1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR2));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_KSR1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0"::"n"(MCFCAU_DESR+MCFCAU_FP+MCFCAU_KSL1));
+}
+
+
+static int mcfcau_des_setkey(struct crypto_tfm *tfm, const u8 *key_p,
+ unsigned int keylen)
+{
+ struct mcfcau_des_ctx *dctx = crypto_tfm_ctx(tfm);
+ u32 *flags = &tfm->crt_flags;
+ u32 * key = (u32 *) key_p;
+
+ DBG("\n");
+
+ /*
+ * RFC2451: Weak key checks SHOULD be performed.
+ *
+ * FIPS 74:
+ * Keys having duals are keys which produce all zeros, all ones, or
+ * alternating zero-one patterns in the C and D registers after Permuted
+ * Choice 1 has operated on the key.
+ *
+ */
+ if(*flags & CRYPTO_TFM_REQ_WEAK_KEY){ /* FIPS 74 */
+ if(key[0]<0xE001E00l){
+ if(key[0]<0x1FE01FE0){
+ if(key[0]<0x01E001E0){
+ if(((key[0]==0x01010101)&&(key[1]==0x01010101))||
+ ((key[0]==0x011F011F)&&(key[1]==0x010E010E)) )
+ goto WEAK_KEY;
+ }
+ else{
+ if(((key[0]==0x01E001E0)&&(key[1]==0x01F101F1))||
+ ((key[0]==0x01FE01FE)&&(key[1]==0x01FE01FE)) )
+ goto WEAK_KEY;
+ }
+ }
+ else{
+ if(key[0]<0x1F1F1F1F){
+ if(((key[0]==0x1FE01FE0)&&(key[1]==0x0EF10EF1))||
+ ((key[0]==0x1F011F0l)&&(key[1]==0x0E010E01)) )
+ goto WEAK_KEY;
+ }
+ else{
+ if(((key[0]==0x1F1F1F1F)&&(key[1]==0x0E0E0E0E))||
+ ((key[0]==0x1FFE1FFE)&&(key[1]==0x0EFE0EFE)) )
+ goto WEAK_KEY;
+ }
+ }
+ } else {
+ if(key[0]<0xFE01FE01){
+ if(key[0]<0xE0E0E0E0){
+ if(((key[0]==0xE001E00l)&&(key[1]==0xF101F101))||
+ ((key[0]==0xE01FE01F)&&(key[1]==0xF10EF10E)) )
+ goto WEAK_KEY;
+ }
+ else{
+ if(((key[0]==0xE0E0E0E0)&&(key[1]==0xF1F1F1F1))||
+ ((key[0]==0xE0FEE0FE)&&(key[1]==0xF1FEF1FE)) )
+ goto WEAK_KEY;
+ }
+ }
+ else{
+ if(key[0]<0xFEE0FEE0){
+ if(((key[0]==0xFE01FE01)&&(key[1]==0xFE01FE01))||
+ ((key[0]==0xFE1FFE1F)&&(key[1]==0xFE0EFE0E)) )
+ goto WEAK_KEY;
+ }
+ else{
+ if(((key[0]==0xFEE0FEE0)&&(key[1]==0xFEF1FEF1))||
+ ((key[0]==0xFEFEFEFE)&&(key[1]==0xFEFEFEFE)) )
+ goto WEAK_KEY;
+ }
+ }
+ }
+ }
+ memcpy(dctx->expkey, key_p, keylen);
+ return 0;
+WEAK_KEY:
+ *flags |= CRYPTO_TFM_RES_WEAK_KEY;
+ return -EINVAL;
+}
+
+
+void mcfcau_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ struct mcfcau_des_ctx *ctx = crypto_tfm_ctx(tfm);
+ u32 * des_key_tmp = ctx->expkey;
+ unsigned long iflags;
+
+ DBG("\n");
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+
+ asm("move.l %0, %%a0"::"m"(src):"a0");
+ asm("move.l %0, %%a1"::"m"(des_key_tmp):"a1");
+
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA2):"a0");
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA3));
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1));
+
+ mcfcau_des_encipher();
+
+ asm("cp0st.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA2):"d0");
+ asm("cp0st.l %%d0,%%d1,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA3):"d1");
+ asm("move.l %0, %%a1" ::"m"(dst):"a1");
+ asm("move.l %d0,(%a1)+");
+ asm("move.l %d1,(%a1)");
+
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+}
+
+
+void mcfcau_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ struct mcfcau_des_ctx *ctx = crypto_tfm_ctx(tfm);
+ u32 * des_key_tmp = ctx->expkey;
+ unsigned long iflags;
+
+ DBG("\n");
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+
+ asm("move.l %0, %%a0"::"m"(src):"a0");
+ asm("move.l %0, %%a1"::"m"(des_key_tmp):"a1");
+
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA2):"a0");
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA3));
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1));
+
+ mcfcau_des_decipher();
+
+ asm("move.l %0, %%a1" ::"m"(dst):"a1");
+ asm("cp0st.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA2):"d0");
+ asm("cp0st.l %%d0,%%d1,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA3):"d1");
+ asm("move.l %d0,(%a1)+");
+ asm("move.l %d1,(%a1)");
+
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+}
+
+
+/*
+ * RFC2451:
+ *
+ * For DES-EDE3, there is no known need to reject weak or
+ * complementation keys. Any weakness is obviated by the use of
+ * multiple keys.
+ *
+ * However, if the first two or last two independent 64-bit keys are
+ * equal (k1 == k2 or k2 == k3), then the DES3 operation is simply the
+ * same as DES. Implementers MUST reject keys that exhibit this
+ * property.
+ *
+ */
+
+static int mcfcau_des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key_p, unsigned int keylen)
+{
+ const u32 *key = (const u32 *)key_p;
+ struct mcfcau_des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
+ u32 *flags = &tfm->crt_flags;
+
+DBG("\n");
+
+ if (unlikely(!((key[0] ^ key[2]) | (key[1] ^ key[3])) ||
+ !((key[2] ^ key[4]) | (key[3] ^ key[5]))))
+ {
+ *flags |= CRYPTO_TFM_RES_BAD_KEY_SCHED;
+ return -EINVAL;
+ }
+
+ memcpy(dctx->expkey,key_p,keylen);
+
+ return 0;
+}
+
+static void mcfcau_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ struct mcfcau_des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
+ const u32 * des_key_tmp = dctx->expkey;
+ unsigned long iflags;
+
+ DBG("\n");
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+
+ /*EK1*/
+ asm("move.l %0, %%a0"::"m"(src):"a0");
+ asm("move.l %0, %%a1"::"m"(des_key_tmp):"a1");
+
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA2):"a0");
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA3));
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1):"a1");
+
+ mcfcau_des_encipher();
+
+ /*DK2*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1):"a1");
+
+ mcfcau_des_decipher();
+
+ /*EK3*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1));
+
+ mcfcau_des_encipher();
+
+ asm("move.l %0, %%a1" ::"m"(dst):"a1");
+ asm("cp0st.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA2):"d0");
+ asm("cp0st.l %%d0,%%d1,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA3):"d1");
+ asm("move.l %d0,(%a1)+");
+ asm("move.l %d1,(%a1)");
+
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+}
+
+static void mcfcau_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ struct mcfcau_des3_ede_ctx *dctx = crypto_tfm_ctx(tfm);
+ const u32 * des_key_tmp = dctx->expkey + 6 - 2;
+ unsigned long iflags;
+
+ DBG("\n");
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+
+ /*DK3*/
+ asm("move.l %0, %%a0"::"m"(src):"a0");
+ asm("move.l %0, %%a1"::"m"(des_key_tmp):"a1");
+
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA2):"a0");
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA3));
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1));
+
+ mcfcau_des_decipher();
+
+ /*EK2*/
+ asm("suba.l #12,%a1"); /*dec key pointer*/
+
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1));
+
+ mcfcau_des_encipher();
+
+ /*DK1*/
+ asm("suba.l #12,%a1"); /*dec key pointer*/
+
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a1");
+ asm("cp0ld.l (%%a1),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1));
+
+ mcfcau_des_decipher();
+
+ asm("move.l %0, %%a1" ::"m"(dst):"a1");
+ asm("cp0st.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA2):"d0");
+ asm("cp0st.l %%d0,%%d1,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA3):"d1");
+ asm("move.l %d0,(%a1)+");
+ asm("move.l %d1,(%a1)");
+
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+}
+
+
+static struct crypto_alg mcfcau_des_alg = {
+ .cra_name = "des",
+ .cra_driver_name = "des-mcfcau",
+ .cra_priority = MCFCAU_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = MCFCAU_DES_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mcfcau_des_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_alignmask = 3,
+ .cra_list = LIST_HEAD_INIT(mcfcau_des_alg.cra_list),
+ .cra_u = { .cipher = {
+ .cia_min_keysize = MCFCAU_DES_KEY_SIZE,
+ .cia_max_keysize = MCFCAU_DES_KEY_SIZE,
+ .cia_setkey = mcfcau_des_setkey,
+ .cia_encrypt = mcfcau_des_encrypt,
+ .cia_decrypt = mcfcau_des_decrypt } }
+};
+
+static struct crypto_alg mcfcau_des3_ede_alg = {
+ .cra_name = "des3_ede",
+ .cra_driver_name = "des3_ede-mcfcau",
+ .cra_priority = MCFCAU_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = MCFCAU_DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mcfcau_des3_ede_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_alignmask = 3,
+ .cra_list = LIST_HEAD_INIT(mcfcau_des3_ede_alg.cra_list),
+ .cra_u = { .cipher = {
+ .cia_min_keysize = MCFCAU_DES3_EDE_KEY_SIZE,
+ .cia_max_keysize = MCFCAU_DES3_EDE_KEY_SIZE,
+ .cia_setkey = mcfcau_des3_ede_setkey,
+ .cia_encrypt = mcfcau_des3_ede_encrypt,
+ .cia_decrypt = mcfcau_des3_ede_decrypt } }
+};
+
+MODULE_ALIAS("mcfcau_des3_ede");
+
+static int __init mcfcau_des_init(void)
+{
+ int ret;
+
+ ret = crypto_register_alg(&mcfcau_des_alg);
+ if (ret < 0)
+ goto out;
+
+ ret = crypto_register_alg(&mcfcau_des3_ede_alg);
+ if (ret < 0)
+ crypto_unregister_alg(&mcfcau_des_alg);
+out:
+ printk(KERN_INFO MCFCAU_DES_DRIVER_DESC " "
+ MCFCAU_DES_DRIVER_VERSION " %s.\n",ret?"failed":"registered");
+ return ret;
+}
+
+static void __exit mcfcau_des_exit(void)
+{
+ crypto_unregister_alg(&mcfcau_des3_ede_alg);
+ crypto_unregister_alg(&mcfcau_des_alg);
+
+ printk(KERN_INFO MCFCAU_DES_DRIVER_DESC " "
+ MCFCAU_DES_DRIVER_VERSION " unregistered.\n");
+}
+
+module_init(mcfcau_des_init);
+module_exit(mcfcau_des_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("DES & Triple DES EDE Cipher Algorithms for ColdFire CAU");
+MODULE_AUTHOR("Andrey Butok");
--- /dev/null
+++ b/drivers/crypto/mcfcau-md5.c
@@ -0,0 +1,654 @@
+ /***************************************************************************
+ * mcfcau-md5.c - Implementation of MD5 Message Digest Algorithm (RFC1321)
+ * for Freescale ColdFire Cryptographic Acceleration Unit (CAU).
+ *
+ * Author: Andrey Butok
+ * Copyright Freescale Semiconductor Inc. 2007
+ *
+ * NOTE: You can find the ColdFire CAU module on MCF54455 and MCF52235.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ***************************************************************************
+ * Changes:
+ * v0.01 30 September 2007 Andrey Butok
+ * Initial Release - developed on 2.6.20 Linux kernel.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/crypto.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+/*
+#undef DEBUG
+#define DEBUG 1
+*/
+
+#include "mcfcau.h"
+
+
+#define MCFCAU_MD5_DIGEST_SIZE (16)
+#define MCFCAU_MD5_HMAC_BLOCK_SIZE (64)
+#define MCFCAU_MD5_BLOCK_WORDS (16)
+#define MCFCAU_MD5_HASH_WORDS (4)
+
+#define MCFCAU_MD5_DRIVER_DESC "MD5 ColdFire CAU driver"
+#define MCFCAU_MD5_DRIVER_VERSION "v0.01"
+
+
+struct mcfcau_md5_ctx {
+ u32 hash[MCFCAU_MD5_HASH_WORDS];
+ u32 block[MCFCAU_MD5_BLOCK_WORDS];
+ u64 byte_count;
+};
+
+u32 mcfcau_md5_t[64]={0xd76aa478, 0xe8c7b756, 0x242070db, 0xc1bdceee,
+ 0xf57c0faf, 0x4787c62a, 0xa8304613, 0xfd469501,
+ 0x698098d8, 0x8b44f7af, 0xffff5bb1, 0x895cd7be,
+ 0x6b901122, 0xfd987193, 0xa679438e, 0x49b40821,
+ 0xf61e2562, 0xc040b340, 0x265e5a51, 0xe9b6c7aa,
+ 0xd62f105d, 0x02441453, 0xd8a1e681, 0xe7d3fbc8,
+ 0x21e1cde6, 0xc33707d6, 0xf4d50d87, 0x455a14ed,
+ 0xa9e3e905, 0xfcefa3f8, 0x676f02d9, 0x8d2a4c8a,
+ 0xfffa3942, 0x8771f681, 0x6d9d6122, 0xfde5380c,
+ 0xa4beea44, 0x4bdecfa9, 0xf6bb4b60, 0xbebfbc70,
+ 0x289b7ec6, 0xeaa127fa, 0xd4ef3085, 0x04881d05,
+ 0xd9d4d039, 0xe6db99e5, 0x1fa27cf8, 0xc4ac5665,
+ 0xf4292244, 0x432aff97, 0xab9423a7, 0xfc93a039,
+ 0x655b59c3, 0x8f0ccc92, 0xffeff47d, 0x85845dd1,
+ 0x6fa87e4f, 0xfe2ce6e0, 0xa3014314, 0x4e0811a1,
+ 0xf7537e82, 0xbd3af235, 0x2ad7d2bb, 0xeb86d391};
+
+
+
+static void mcfcau_md5_transform(u32 *hash, u32 const *in)
+{
+ int i;
+ u32 * md5_t_p=&mcfcau_md5_t[0];
+ unsigned long iflags;
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+ asm("move.l %0, %%a1"::"m"(hash):"a1");
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CAA):"a1");/*a*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1):"a1");/*b*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA2):"a1");/*c*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA3):"a1");/*d*/
+ asm("move.l %0, %%a0"::"m"(in):"a0"); /* X[] */
+ asm("move.l %0, %%a3"::"m"(md5_t_p):"a3"); /* T[] */
+
+
+ /* Round 1 */
+ asm("moveq.l #7, %%d4":::"d4"); /* for rotating by 7 */
+ asm("moveq.l #12, %%d5":::"d5"); /* for rotating by 12 */
+ asm("moveq.l #17, %%d6":::"d6"); /* for rotating by 17 */
+ asm("moveq.l #22, %%d7":::"d7"); /* for rotating by 22 */
+
+ for(i=0; i<4;i++){
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFF)); /* a+F(b,c,d) */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0"); /* add byterev x[i] */
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3"); /* add t[i] */
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA)); /* rotate by 7 */
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1)); /* add b */
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS)); /* register to register shift */
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFF));
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFF));
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFF));
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+ };
+
+
+ /* Round 2 */
+ asm("moveq.l #5, %%d4":::"d4"); /* for rotating by 5 */
+ asm("moveq.l #9, %%d5":::"d5"); /* for rotating by 9 */
+ asm("moveq.l #14, %%d6":::"d6"); /* for rotating by 14 */
+ asm("moveq.l #20, %%d7":::"d7"); /* for rotating by 20 */
+
+ asm("lea -60(%%a0),%%a0":::"a0");
+
+ for(i=0; i<2;i++){
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 20(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 20(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -44(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 20(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+ };
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 20(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -44(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 20(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 20(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -44(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 20(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 20(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFG));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ /* Round 3 */
+ asm("moveq.l #4, %%d4":::"d4"); /* for rotating by 5 */
+ asm("moveq.l #11, %%d5":::"d5"); /* for rotating by 9 */
+ asm("moveq.l #16, %%d6":::"d6"); /* for rotating by 14 */
+ asm("moveq.l #23, %%d7":::"d7"); /* for rotating by 20 */
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -52(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -52(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 12(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -52(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -8(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ /* Round 4 */
+ asm("moveq.l #6, %%d4":::"d4"); /* for rotating by 6 */
+ asm("moveq.l #10, %%d5":::"d5"); /* for rotating by 10 */
+ asm("moveq.l #15, %%d6":::"d6"); /* for rotating by 15 */
+ asm("moveq.l #21, %%d7":::"d7"); /* for rotating by 21 */
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -36(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -36(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -36(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -36(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -36(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d4,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea -36(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d5,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d6,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFI));
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_RADR+MCFCAU_CAA):"a0");
+ asm("lea 28(%%a0),%%a0" :::"a0");
+ asm("cp0ld.l (%%a3)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a3");
+ asm("cp0ld.l %%d7,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA1));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MDS));
+
+
+ asm("move.l %0, %%a1"::"m"(hash):"a1");
+
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a1");/*a*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CA1):"a1");/*b*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CA2):"a1");/*c*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CA3):"a1");/*d*/
+
+ asm("cp0st.l %%d0,-(%%a1),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA3):"a1");/*d*/
+ asm("cp0st.l %%d0,-(%%a1),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA2):"a1");/*c*/
+ asm("cp0st.l %%d0,-(%%a1),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA1):"a1");/*b*/
+ asm("cp0st.l %%d0,-(%%a1),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CAA):"a1");/*a*/
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+}
+
+static inline void le32_to_cpu_array(u32 *buf, unsigned int words)
+{
+ while (words--) {
+ __le32_to_cpus(buf);
+ buf++;
+ }
+}
+
+static inline void cpu_to_le32_array(u32 *buf, unsigned int words)
+{
+ while (words--) {
+ __cpu_to_le32s(buf);
+ buf++;
+ }
+}
+
+static void mcfcau_md5_initialization(struct crypto_tfm *tfm)
+{
+ struct mcfcau_md5_ctx *mctx = crypto_tfm_ctx(tfm);
+
+ DBG("\n");
+ mctx->hash[0] = 0x67452301;
+ mctx->hash[1] = 0xefcdab89;
+ mctx->hash[2] = 0x98badcfe;
+ mctx->hash[3] = 0x10325476;
+ mctx->byte_count = 0;
+}
+
+static void mcfcau_md5_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len)
+{
+ struct mcfcau_md5_ctx *mctx = crypto_tfm_ctx(tfm);
+ const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
+
+ DBG("\n");
+ mctx->byte_count += len;
+
+ if (avail > len) {
+ memcpy((char *)mctx->block + (sizeof(mctx->block) - avail),
+ data, len);
+ }
+ else {
+ memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), data, avail);
+
+ mcfcau_md5_transform(mctx->hash, mctx->block);
+ data += avail;
+ len -= avail;
+
+ while (len >= sizeof(mctx->block)) {
+ memcpy(mctx->block, data, sizeof(mctx->block));
+ mcfcau_md5_transform(mctx->hash, mctx->block);
+ data += sizeof(mctx->block);
+ len -= sizeof(mctx->block);
+ }
+
+ memcpy(mctx->block, data, len);
+ }
+}
+
+static void mcfcau_md5_final(struct crypto_tfm *tfm, u8 *out)
+{
+ struct mcfcau_md5_ctx *mctx = crypto_tfm_ctx(tfm);
+ const unsigned int offset = mctx->byte_count & 0x3f;
+ char *p = (char *)mctx->block + offset;
+ int padding = 56 - (offset + 1);
+
+ DBG("\n");
+
+ *p++ = 0x80;
+ if (padding < 0) {
+ memset(p, 0x00, padding + sizeof (u64));
+ mcfcau_md5_transform(mctx->hash, mctx->block);
+ p = (char *)mctx->block;
+ padding = 56;
+ }
+
+ memset(p, 0, padding);
+ mctx->block[14] = mctx->byte_count << 3;
+ mctx->block[15] = mctx->byte_count >> 29;
+ le32_to_cpu_array(&mctx->block[14], 2);
+
+ mcfcau_md5_transform(mctx->hash, mctx->block);
+
+ cpu_to_le32_array(mctx->hash, sizeof(mctx->hash) / sizeof(u32));
+ memcpy(out, mctx->hash, sizeof(mctx->hash));
+ memset(mctx, 0, sizeof(*mctx));
+}
+
+static struct crypto_alg mcfcau_md5_alg = {
+ .cra_name = "md5",
+ .cra_driver_name = "md5-mcfcau",
+ .cra_priority = MCFCAU_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
+ .cra_blocksize = MCFCAU_MD5_HMAC_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mcfcau_md5_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_list = LIST_HEAD_INIT(mcfcau_md5_alg.cra_list),
+ .cra_u = { .digest = {
+ .dia_digestsize = MCFCAU_MD5_DIGEST_SIZE,
+ .dia_init = mcfcau_md5_initialization,
+ .dia_update = mcfcau_md5_update,
+ .dia_final = mcfcau_md5_final } }
+};
+
+static int __init mcfcau_md5_init(void)
+{
+ int ret = crypto_register_alg(&mcfcau_md5_alg);
+ printk(KERN_INFO MCFCAU_MD5_DRIVER_DESC " "
+ MCFCAU_MD5_DRIVER_VERSION " %s.\n",ret?"failed":"registered");
+ return ret;
+}
+
+static void __exit mcfcau_md5_exit(void)
+{
+ crypto_unregister_alg(&mcfcau_md5_alg);
+ printk(KERN_INFO MCFCAU_MD5_DRIVER_DESC " "
+ MCFCAU_MD5_DRIVER_VERSION " unregistered.\n");
+}
+
+module_init(mcfcau_md5_init);
+module_exit(mcfcau_md5_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(MCFCAU_MD5_DRIVER_DESC);
+MODULE_AUTHOR("Andrey Butok");
--- /dev/null
+++ b/drivers/crypto/mcfcau-sha1.c
@@ -0,0 +1,280 @@
+ /***************************************************************************
+ * mcfcau-sha1.c - Implementation of SHA1 Secure Hash Algorithm
+ * for Freescale ColdFire Cryptographic Acceleration Unit (CAU).
+ *
+ * Author: Andrey Butok
+ * Copyright Freescale Semiconductor Inc. 2007
+ *
+ * NOTE: You can find the ColdFire CAU module on MCF54455 and MCF52235.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ***************************************************************************
+ * Changes:
+ * v0.01 15 October 2007 Andrey Butok
+ * Initial Release - developed on 2.6.20 Linux kernel.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/crypto.h>
+#include <linux/types.h>
+
+
+/*
+#undef DEBUG
+#define DEBUG 1
+*/
+
+#include "mcfcau.h"
+
+#define MCFCAU_SHA1_DIGEST_WORDS (5)
+#define MCFCAU_SHA1_WORKSPACE_WORDS (80)
+
+#define MCFCAU_SHA1_DIGEST_SIZE (20)
+#define MCFCAU_SHA1_HMAC_BLOCK_SIZE (64)
+
+#define MCFCAU_SHA1_DRIVER_DESC "SHA1 ColdFire CAU driver"
+#define MCFCAU_SHA1_DRIVER_VERSION "v0.01"
+
+struct mcfcau_sha1_ctx {
+ u64 count;
+ u32 state[5];
+ u8 buffer[64];
+};
+
+const static u32 K[4]={0x5A827999L, /* Rounds 0-19: sqrt(2) * 2^30 */
+ 0x6ED9EBA1L, /* Rounds 20-39: sqrt(3) * 2^30 */
+ 0x8F1BBCDCL, /* Rounds 40-59: sqrt(5) * 2^30 */
+ 0xCA62C1D6L}; /* Rounds 60-79: sqrt(10) * 2^30 */
+
+static void noinline mcfcau_sha1_transform(__u32 *digest, const char *in, __u32 *W)
+{
+ int i;
+ u32 * tmp_p;
+ unsigned long iflags;
+
+ /* (a) Devide M(i) into 16 words W */
+ for (i = 0; i < 16; i++)
+ W[i] = ((const u32 *)in)[i];
+
+ /* (b) W[i+16] = S^1(W[i+13] ^ W[i+8] ^ W[i+2] ^ W[i]) */
+ tmp_p=&W[16];
+
+ spin_lock_irqsave(&mcfcau_lock, iflags);
+ asm("move.l %0, %%a0"::"m"(tmp_p):"a0");
+ asm("moveq.l #1, %%d3":::"d3");
+
+ for (i = 0; i < 64; i++){
+ asm("cp0ld.l -64(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0));
+ asm("cp0ld.l -56(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA0));
+ asm("cp0ld.l -32(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA0));
+ asm("cp0ld.l -12(%%a0),%%d0,#1,%0" ::"n"(MCFCAU_XOR+MCFCAU_CA0));
+ asm("cp0ld.l %%d3,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CA0):"d3");
+ asm("cp0st.l %%d0,(%%a0)+,#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA0));
+ }
+
+ /* (c) */
+ asm("move.l %0, %%a0"::"m"(digest):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA0):"a0"); /* a */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA1):"a0"); /* b */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA2):"a0"); /* c */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA3):"a0"); /* d */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_LDR+MCFCAU_CA4):"a0"); /* e */
+
+ /* (d) */
+ asm("moveq.l #5, %%d0":::"d0");
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_MVRA+MCFCAU_CA0));
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ROTL+MCFCAU_CAA)); /*S^5(A)*/
+
+ tmp_p=(u32*)K;
+ asm("move.l %0, %%a0"::"m"(tmp_p):"a0");
+ asm("move.l %0, %%a1"::"m"(W):"a1");
+
+ for (i = 0; i < 20; i++) {
+ /* t = f1(b, c, d) + K1 + rol32(a, 5) + e + W[i]; */
+ /* e = d; d = c; c = rol32(b, 30); b = a; a = t; */
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFC)); /*f(b,c,d)*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA4)); /*+e*/
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA)); /*+K*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a1"); /*+W*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_SHS));
+ }
+
+ asm("add.l #4,%%a0" :::"a0"); /* update K */
+
+ for (; i < 40; i ++) {
+ /* t = f2(b, c, d) + K2 + rol32(a, 5) + e + W[i]; */
+ /* e = d; d = c; c = rol32(b, 30); b = a; a = t; */
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH)); /*f(b,c,d)*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA4)); /*+e*/
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA)); /*+K*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a1"); /*+W*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_SHS));
+ }
+
+ asm("add.l #4,%%a0" :::"a0"); /* update K */
+
+ for (; i < 60; i ++) {
+ /* t = f3(b, c, d) + K3 + rol32(a, 5) + e + W[i]; */
+ /* e = d; d = c; c = rol32(b, 30); b = a; a = t; */
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFM)); /*f(b,c,d)*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA4)); /*+e*/
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA)); /*+K*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a1"); /*+W*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_SHS));
+ }
+
+ asm("add.l #4,%%a0" :::"a0"); /* update K */
+
+ for (; i < 80; i ++) {
+ /* t = f2(b, c, d) + K4 + rol32(a, 5) + e + W[i]; */
+ /* e = d; d = c; c = rol32(b, 30); b = a; a = t; */
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_HASH+MCFCAU_HFH)); /*f(b,c,d)*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_ADRA+MCFCAU_CA4)); /*+e*/
+ asm("cp0ld.l (%%a0),%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA)); /*+K*/
+ asm("cp0ld.l (%%a1)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CAA):"a1"); /*+W*/
+ asm("cp0ld.l %%d0,%%d0,#1,%0" ::"n"(MCFCAU_SHS));
+ }
+
+ /* (e) */
+ asm("move.l %0, %%a0"::"m"(digest):"a0");
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CA0):"a0"); /* +a */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CA1):"a0"); /* +b */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CA2):"a0"); /* +c */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CA3):"a0"); /* +d */
+ asm("cp0ld.l (%%a0)+,%%d0,#1,%0" ::"n"(MCFCAU_ADR+MCFCAU_CA4):"a0"); /* +e */
+
+ asm("cp0st.l %%d0,-(%%a0),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA4):"a0");
+ asm("cp0st.l %%d0,-(%%a0),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA3):"a0");
+ asm("cp0st.l %%d0,-(%%a0),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA2):"a0");
+ asm("cp0st.l %%d0,-(%%a0),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA1):"a0");
+ asm("cp0st.l %%d0,-(%%a0),#1,%0" ::"n"(MCFCAU_STR+MCFCAU_CA0):"a0");
+ spin_unlock_irqrestore(&mcfcau_lock, iflags);
+}
+
+static void mcfcau_sha1_init(struct crypto_tfm *tfm)
+{
+ struct mcfcau_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ static const struct mcfcau_sha1_ctx initstate = {
+ 0,
+ { 0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0 },
+ { 0, }
+ };
+
+ *sctx = initstate;
+}
+
+static void mcfcau_sha1_update(struct crypto_tfm *tfm, const u8 *data,
+ unsigned int len)
+{
+ struct mcfcau_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ unsigned int partial, done;
+ const u8 *src;
+
+ partial = sctx->count & 0x3f;
+ sctx->count += len;
+ done = 0;
+ src = data;
+
+ if ((partial + len) > 63) {
+ u32 temp[MCFCAU_SHA1_WORKSPACE_WORDS];
+
+ if (partial) {
+ done = -partial;
+ memcpy(sctx->buffer + partial, data, done + 64);
+ src = sctx->buffer;
+ }
+
+ do {
+ mcfcau_sha1_transform(sctx->state, src, temp);
+ done += 64;
+ src = data + done;
+ } while (done + 63 < len);
+
+ memset(temp, 0, sizeof(temp));
+ partial = 0;
+ }
+ memcpy(sctx->buffer + partial, src, len - done);
+}
+
+
+/* Add padding and return the message digest. */
+static void mcfcau_sha1_final(struct crypto_tfm *tfm, u8 *out)
+{
+ struct mcfcau_sha1_ctx *sctx = crypto_tfm_ctx(tfm);
+ u32 *dst = (u32 *)out;
+ u32 i, index, padlen;
+ u64 bits;
+ static const u8 padding[64] = { 0x80, };
+
+ bits = sctx->count << 3;
+
+ /* Pad out to 56 mod 64 */
+ index = sctx->count & 0x3f;
+ padlen = (index < 56) ? (56 - index) : ((64+56) - index);
+ mcfcau_sha1_update(tfm, padding, padlen);
+
+ /* Append length */
+ mcfcau_sha1_update(tfm, (const u8 *)&bits, sizeof(bits));
+
+ /* Store state in digest */
+ for (i = 0; i < 5; i++)
+ dst[i] = sctx->state[i];
+
+
+ /* Wipe context */
+ memset(sctx, 0, sizeof *sctx);
+}
+
+static struct crypto_alg mcfcau_sha1_alg = {
+ .cra_name = "sha1",
+ .cra_driver_name= "sha1-mcfcau",
+ .cra_priority = MCFCAU_CRA_PRIORITY,
+ .cra_flags = CRYPTO_ALG_TYPE_DIGEST,
+ .cra_blocksize = MCFCAU_SHA1_HMAC_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct mcfcau_sha1_ctx),
+ .cra_module = THIS_MODULE,
+ .cra_alignmask = 3,
+ .cra_list = LIST_HEAD_INIT(mcfcau_sha1_alg.cra_list),
+ .cra_u = { .digest = {
+ .dia_digestsize = MCFCAU_SHA1_DIGEST_SIZE,
+ .dia_init = mcfcau_sha1_init,
+ .dia_update = mcfcau_sha1_update,
+ .dia_final = mcfcau_sha1_final } }
+};
+
+static int __init init(void)
+{
+ int ret = crypto_register_alg(&mcfcau_sha1_alg);
+ printk(KERN_INFO MCFCAU_SHA1_DRIVER_DESC " "
+ MCFCAU_SHA1_DRIVER_VERSION " %s.\n",ret?"failed":"registered");
+ return ret;
+}
+
+static void __exit fini(void)
+{
+ crypto_unregister_alg(&mcfcau_sha1_alg);
+ printk(KERN_INFO MCFCAU_SHA1_DRIVER_DESC " "
+ MCFCAU_SHA1_DRIVER_VERSION " unregistered.\n");
+}
+
+module_init(init);
+module_exit(fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(MCFCAU_SHA1_DRIVER_DESC);
+MODULE_AUTHOR("Andrey Butok");
--- /dev/null
+++ b/drivers/crypto/mcfcau.c
@@ -0,0 +1,32 @@
+/***************************************************************************
+ * mcfcau.c - Implementation of DES & Triple DES EDE Cipher Algorithms
+ * for Freescale ColdFire Cryptographic Acceleration Unit (CAU).
+ *
+ * Author: Andrey Butok
+ * Copyright Freescale Semiconductor Inc. 2007
+ *
+ * NOTE: You can find the ColdFire CAU module on MCF54455 and MCF52235.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ***************************************************************************
+ * Changes:
+ * v0.01 28 September 2006 Andrey Butok
+ * Initial Release - developed on 2.6.20 Linux kernel.
+ */
+#include <linux/module.h>
+
+DEFINE_SPINLOCK(mcfcau_lock);
+EXPORT_SYMBOL(mcfcau_lock);
--- /dev/null
+++ b/drivers/crypto/mcfcau.h
@@ -0,0 +1,98 @@
+/***************************************************************************
+ * mcfcau.h - Common header file for Freescale ColdFire
+ * Cryptographic Acceleration Unit (CAU) drivers.
+ *
+ * Author: Andrey Butok
+ * Copyright Freescale Semiconductor Inc. 2007
+ *
+ * NOTE: You can find the ColdFire CAU module on MCF54455 and MCF52235.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ ***************************************************************************
+ * Changes:
+ * v0.01 14 August 2007 Andrey Butok
+ */
+
+#ifndef MCFCAU_H
+#define MCFCAU_H
+
+#include <linux/spinlock.h>
+
+/* CAU Registers (CAx) */
+#define MCFCAU_CASR (0x0)
+#define MCFCAU_CAA (0x1)
+#define MCFCAU_CA0 (0x2)
+#define MCFCAU_CA1 (0x3)
+#define MCFCAU_CA2 (0x4)
+#define MCFCAU_CA3 (0x5)
+#define MCFCAU_CA4 (0x6)
+#define MCFCAU_CA5 (0x7)
+
+ /* CAU Commands */
+#define MCFCAU_CNOP (0x000)
+#define MCFCAU_LDR (0x010)
+#define MCFCAU_STR (0x020)
+#define MCFCAU_ADR (0x030)
+#define MCFCAU_RADR (0x040)
+#define MCFCAU_ADRA (0x050)
+#define MCFCAU_XOR (0x060)
+#define MCFCAU_ROTL (0x070)
+#define MCFCAU_MVRA (0x080)
+#define MCFCAU_MVAR (0x090)
+#define MCFCAU_AESS (0x0A0)
+#define MCFCAU_AESIS (0x0B0)
+#define MCFCAU_AESC (0x0C0)
+#define MCFCAU_AESIC (0x0D0)
+#define MCFCAU_AESR (0x0E0)
+#define MCFCAU_AESIR (0x0F0)
+#define MCFCAU_DESR (0x100)
+#define MCFCAU_DESK (0x110)
+#define MCFCAU_HASH (0x120)
+#define MCFCAU_SHS (0x130)
+#define MCFCAU_MDS (0x140)
+#define MCFCAU_ILL (0x1F0)
+
+/* DESR Fields */
+#define MCFCAU_IP (0x08) /* initial permutation */
+#define MCFCAU_FP (0x04) /* final permutation */
+#define MCFCAU_KSL1 (0x00) /* key schedule left 1 bit */
+#define MCFCAU_KSL2 (0x01) /* key schedule left 2 bits */
+#define MCFCAU_KSR1 (0x02) /* key schedule right 1 bit */
+#define MCFCAU_KSR2 (0x03) /* key schedule right 2 bits */
+
+/* DESK Field */
+#define MCFCAU_DC (0x01) /* decrypt key schedule */
+#define MCFCAU_CP (0x02) /* check parity */
+
+/* HASH Functions Codes */
+#define MCFCAU_HFF (0x0) /* MD5 F() CA1&CA2 | ~CA1&CA3 */
+#define MCFCAU_HFG (0x1) /* MD5 G() CA1&CA3 | CA2&~CA3 */
+#define MCFCAU_HFH (0x2) /* MD5 H(), SHA Parity() CA1^CA2^CA3 */
+#define MCFCAU_HFI (0x3) /* MD5 I() CA2^(CA1|~CA3) */
+#define MCFCAU_HFC (0x4) /* SHA Ch() CA1&CA2 ^ ~CA1&CA3 */
+#define MCFCAU_HFM (0x5) /* SHA Maj() CA1&CA2 ^ CA1&CA3 ^ CA2&CA3 */
+
+#define MCFCAU_CRA_PRIORITY (300)
+
+extern spinlock_t mcfcau_lock;
+
+#ifdef DEBUG
+#define DBG(fmt, args...) printk( "[%s] " fmt , __FUNCTION__, ## args)
+#else
+#define DBG(fmt, args...) do{}while(0)
+#endif
+
+#endif
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